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raze-gles/polymer/eduke32/build/src/engine.c
helixhorned 2d6f24a3f2 Fix a potential free() of stack memory in screenshot code. Ouch! 
git-svn-id: https://svn.eduke32.com/eduke32@2363 1a8010ca-5511-0410-912e-c29ae57300e0
2012-02-18 22:15:19 +00:00

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// "Build Engine & Tools" Copyright (c) 1993-1997 Ken Silverman
// Ken Silverman's official web site: "http://www.advsys.net/ken"
// See the included license file "BUILDLIC.TXT" for license info.
//
// This file has been modified from Ken Silverman's original release
// by Jonathon Fowler (jonof@edgenetwk.com)
#define ENGINE
#include "compat.h"
#include "build.h"
#include "pragmas.h"
#include "cache1d.h"
#include "a.h"
#include "osd.h"
#include "crc32.h"
#include "quicklz.h"
#include "baselayer.h"
#include "scriptfile.h"
#ifdef USE_OPENGL
# include "glbuild.h"
# include "mdsprite.h"
# ifdef POLYMER
# include "polymer.h"
# endif
# include "hightile.h"
# include "polymost.h"
# ifdef _WIN32
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# endif
#endif
#ifdef USE_LIBPNG
//# include <setjmp.h>
# ifdef NEDMALLOC
# define PNG_USER_MEM_SUPPORTED
# endif
# include <png.h>
#endif
#include <math.h>
#include <assert.h>
#include "engine_priv.h"
#define CACHEAGETIME 16
#if !defined DEBUG_MAIN_ARRAYS
# define HAVE_CLIPSHAPE_FEATURE
const int32_t engine_main_arrays_are_static = 0; // for Lunatic
#else
const int32_t engine_main_arrays_are_static = 1;
#endif
float debug1, debug2;
static void drawpixel_safe(void *s, char a)
{
#if defined __GNUC__
if (__builtin_expect((intptr_t)s >= frameplace && (intptr_t)s < frameplace+bytesperline*ydim, 1))
#else
if ((intptr_t)s >= frameplace && (intptr_t)s < frameplace+bytesperline*ydim)
#endif
drawpixel(s, a);
#ifdef DEBUGGINGAIDS
else
{
static const char *const c = &editorcolors[15];
drawpixel((intptr_t *)frameplace, *c);
drawpixel((intptr_t *)frameplace+1, *c);
drawpixel((intptr_t *)frameplace+2, *c);
drawpixel((intptr_t *)frameplace+bytesperline, *c);
drawpixel((intptr_t *)frameplace+bytesperline+1, *c);
drawpixel((intptr_t *)frameplace+bytesperline+2, *c);
drawpixel((intptr_t *)frameplace+2*bytesperline, *c);
drawpixel((intptr_t *)frameplace+2*bytesperline+1, *c);
drawpixel((intptr_t *)frameplace+2*bytesperline+2, *c);
}
#endif
}
//void loadvoxel(int32_t voxindex) { UNREFERENCED_PARAMATER(voxindex); }
int16_t tiletovox[MAXTILES];
int32_t usevoxels = 1;
//#define kloadvoxel loadvoxel
int32_t novoxmips = 1;
int32_t editorgridextent = 131072;
//These variables need to be copied into BUILD
#define MAXXSIZ 256
#define MAXYSIZ 256
#define MAXZSIZ 255
#define MAXVOXMIPS 5
static intptr_t voxoff[MAXVOXELS][MAXVOXMIPS]; char voxlock[MAXVOXELS][MAXVOXMIPS];
int32_t voxscale[MAXVOXELS];
static int32_t ggxinc[MAXXSIZ+1], ggyinc[MAXXSIZ+1];
static int32_t lowrecip[1024], nytooclose, nytoofar;
static uint32_t distrecip[65536+256];
static intptr_t *lookups = NULL;
int32_t dommxoverlay = 1, beforedrawrooms = 1, indrawroomsandmasks = 0;
static int32_t oxdimen = -1, oviewingrange = -1, oxyaspect = -1;
// r_usenewaspect is the cvar, newaspect_enable to trigger the new behaviour in the code
int32_t r_usenewaspect = 1, newaspect_enable=0;
uint32_t r_screenxy = 403; // 4:3 aspect ratio
int32_t curbrightness = 0, gammabrightness = 0;
double vid_gamma = DEFAULT_GAMMA;
double vid_contrast = DEFAULT_CONTRAST;
double vid_brightness = DEFAULT_BRIGHTNESS;
//Textured Map variables
static char globalpolytype;
static int16_t *dotp1[MAXYDIM], *dotp2[MAXYDIM];
static int8_t tempbuf[MAXWALLS];
int32_t ebpbak, espbak;
static intptr_t slopalookup[16384]; // was 2048
#if defined(USE_OPENGL)
palette_t palookupfog[MAXPALOOKUPS];
#endif
static int32_t artversion;
int32_t mapversion=7; // JBF 20040211: default mapversion to 7
char picsiz[MAXTILES];
static void *pic = NULL;
static char permanentlock = 255;
static char tilefilenum[MAXTILES];
static int32_t tilefileoffs[MAXTILES];
static int32_t lastageclock;
static int32_t artsize = 0, cachesize = 0;
// maximum number of ART files
static char *artptrs[MAXTILEFILES];
// GCC 4.6 LTO build fix
#ifdef USING_LTO
# define B_ENGINE_STATIC
#else
# define B_ENGINE_STATIC static
#endif
static int16_t radarang2[MAXXDIM];
B_ENGINE_STATIC uint16_t ATTRIBUTE((used)) sqrtable[4096], ATTRIBUTE((used)) shlookup[4096+256];
char pow2char[8] = {1,2,4,8,16,32,64,128};
int32_t pow2long[32] =
{
1L,2L,4L,8L,
16L,32L,64L,128L,
256L,512L,1024L,2048L,
4096L,8192L,16384L,32768L,
65536L,131072L,262144L,524288L,
1048576L,2097152L,4194304L,8388608L,
16777216L,33554432L,67108864L,134217728L,
268435456L,536870912L,1073741824L,2147483647L
};
int32_t reciptable[2048], fpuasm;
char britable[16][256]; // JBF 20040207: full 8bit precision
extern char textfont[2048], smalltextfont[2048];
static char kensmessage[128];
const char *engineerrstr = "No error";
int32_t showfirstwall=0;
int32_t showheightindicators=2;
int32_t circlewall=-1;
//char cachedebug = 0;
qlz_state_compress *state_compress = NULL;
qlz_state_decompress *state_decompress = NULL;
int32_t whitecol;
#ifdef POLYMER
static int16_t maphacklightcnt=0;
static int16_t maphacklight[PR_MAXLIGHTS];
#endif
// forward refs
inline int32_t getscreenvdisp(int32_t bz, int32_t zoome);
void screencoords(int32_t *xres, int32_t *yres, int32_t x, int32_t y, int32_t zoome);
static void scansector(int16_t sectnum);
int16_t editstatus = 0;
////////// YAX //////////
int32_t numgraysects = 0;
uint8_t graysectbitmap[MAXSECTORS>>3];
uint8_t graywallbitmap[MAXWALLS>>3];
int32_t autogray = 0, showinnergray = 1;
#ifdef YAX_DEBUG
double hitickspersec;
#endif
#ifdef ENGINE_SCREENSHOT_DEBUG
int32_t engine_screenshot = 0;
#endif
void yax_updategrays(int32_t posze)
{
int32_t i, j, k=1;
#ifdef YAX_ENABLE
int32_t mingoodz=INT32_MAX, maxgoodz=INT32_MIN;
#else
UNREFERENCED_PARAMETER(posze);
#endif
Bmemset(graysectbitmap, 0, sizeof(graysectbitmap));
Bmemset(graywallbitmap, 0, sizeof(graywallbitmap));
for (i=0; i<numsectors; i++)
{
#ifdef YAX_ENABLE
int16_t cb, fb;
yax_getbunches(i, &cb, &fb);
// update grayouts due to yax --v-- has to be half-open --v--
// because only one level should v be ever active v
k = ((cb<0 || sector[i].ceilingz < posze) && (fb<0 || posze <= sector[i].floorz));
if (autogray && (cb>=0 || fb>=0) && (sector[i].ceilingz <= posze && posze <= sector[i].floorz))
{
mingoodz = min(mingoodz, sector[i].ceilingz);
maxgoodz = max(maxgoodz, sector[i].floorz);
}
#endif
// update grayouts due to editorzrange
k &= (sector[i].ceilingz >= editorzrange[0] && sector[i].floorz <= editorzrange[1]);
if (!k) // outside bounds, gray out!
graysectbitmap[i>>3] |= (1<<(i&7));
}
#ifdef YAX_ENABLE
if (autogray && mingoodz<=maxgoodz)
{
for (i=0; i<numsectors; i++)
if (!(mingoodz <= sector[i].ceilingz && sector[i].floorz <= maxgoodz))
graysectbitmap[i>>3] |= (1<<(i&7));
}
#endif
numgraysects = 0;
for (i=0; i<numsectors; i++)
{
if (graysectbitmap[i>>3]&(1<<(i&7)))
{
numgraysects++;
for (j=sector[i].wallptr; j<sector[i].wallptr+sector[i].wallnum; j++)
graywallbitmap[j>>3] |= (1<<(j&7));
}
}
}
#if !defined YAX_ENABLE
# warning Non-TROR builds are supported only for debugging. Expect savegame breakage etc...
#endif
#ifdef YAX_ENABLE
// all references to floor/ceiling bunchnums should be through the
// get/set functions!
int32_t g_nodraw = 0;
int32_t scansector_retfast = 0;
static int32_t scansector_collectsprites = 1;
int32_t yax_globalcf = -1, yax_nomaskpass=0, yax_nomaskdidit; // engine internal
int32_t r_tror_nomaskpass = 1; // cvar
int32_t yax_globallev = YAX_MAXDRAWS;
int32_t yax_globalbunch = -1;
// duplicated tsprites
// [i]:
// i==MAXDRAWS: base level
// i<MAXDRAWS: MAXDRAWS-i-1 is level towards ceiling
// i>MAXDRAWS: i-MAXDRAWS-1 is level towards floor
static int16_t yax_spritesortcnt[1 + 2*YAX_MAXDRAWS];
static uint16_t yax_tsprite[1 + 2*YAX_MAXDRAWS][MAXSPRITESONSCREEN];
static uint8_t yax_tsprfrombunch[1 + 2*YAX_MAXDRAWS][MAXSPRITESONSCREEN];
// drawn sectors
uint8_t yax_gotsector[MAXSECTORS>>3]; // engine internal
// game-time YAX data structures
int16_t yax_bunchnum[MAXSECTORS][2];
int16_t yax_nextwall[MAXWALLS][2];
static int32_t yax_islockededge(int32_t line, int32_t cf)
{
return !!(wall[line].cstat&(YAX_NEXTWALLBIT(cf)));
}
#define YAX_PTRBUNCHNUM(Ptr, Sect, Cf) (*(&Ptr[Sect].ceilingxpanning + 8*Cf))
#define YAX_BUNCHNUM(Sect, Cf) YAX_PTRBUNCHNUM(sector, Sect, Cf)
//// bunch getters/setters
int16_t yax_getbunch(int16_t i, int16_t cf)
{
if (editstatus==0)
return yax_bunchnum[i][cf];
if (((*(&sector[i].ceilingstat + cf))&YAX_BIT)==0)
return -1;
return YAX_BUNCHNUM(i, cf);
}
void yax_getbunches(int16_t i, int16_t *cb, int16_t *fb)
{
*cb = yax_getbunch(i, YAX_CEILING);
*fb = yax_getbunch(i, YAX_FLOOR);
}
// bunchnum: -1: also clear yax-nextwalls (forward and reverse)
// -2: don't clear reverse yax-nextwalls
// -3: don't clear either forward or reverse yax-nextwalls
void yax_setbunch(int16_t i, int16_t cf, int16_t bunchnum)
{
if (editstatus==0)
{
yax_bunchnum[i][cf] = bunchnum;
return;
}
if (bunchnum < 0)
{
int32_t j;
int16_t ynw;
if (bunchnum > -3)
{
// TODO: for in-game too?
for (j=sector[i].wallptr; j<sector[i].wallptr+sector[i].wallnum; j++)
{
ynw = yax_getnextwall(j, cf);
if (ynw >= 0)
{
if (bunchnum > -2)
yax_setnextwall(ynw, !cf, -1);
yax_setnextwall(j, cf, -1);
}
}
}
*(&sector[i].ceilingstat + cf) &= ~YAX_BIT;
YAX_BUNCHNUM(i, cf) = 0;
return;
}
*(&sector[i].ceilingstat + cf) |= YAX_BIT;
YAX_BUNCHNUM(i, cf) = bunchnum;
}
void yax_setbunches(int16_t i, int16_t cb, int16_t fb)
{
yax_setbunch(i, YAX_CEILING, cb);
yax_setbunch(i, YAX_FLOOR, fb);
}
//// nextwall getters/setters
int16_t yax_getnextwall(int16_t wal, int16_t cf)
{
if (editstatus==0)
return yax_nextwall[wal][cf];
if (!yax_islockededge(wal, cf))
return -1;
return YAX_NEXTWALL(wal, cf);
}
// unchecked!
void yax_setnextwall(int16_t wal, int16_t cf, int16_t thenextwall)
{
if (editstatus==0)
{
yax_nextwall[wal][cf] = thenextwall;
return;
}
if (thenextwall >= 0)
{
wall[wal].cstat |= YAX_NEXTWALLBIT(cf);
YAX_NEXTWALL(wal, cf) = thenextwall;
}
else
{
wall[wal].cstat &= ~YAX_NEXTWALLBIT(cf);
YAX_NEXTWALL(wal, cf) = cf?-1:0;
}
}
// make one step in the vertical direction, and if the wall we arrive at
// is red, return its nextsector.
int16_t yax_vnextsec(int16_t line, int16_t cf)
{
int16_t ynw = yax_getnextwall(line, cf);
if (ynw < 0)
return -1;
return wall[ynw].nextsector;
}
//// in-struct --> array transfer (only resetstat==0); list construction
// resetstat: 0: reset and read data from structs and construct linked lists etc.
// 1: only reset
// 2: read data from game-time arrays and construct linked lists etc.
void yax_update(int32_t resetstat)
{
int32_t i, j, oeditstatus=editstatus;
int16_t cb, fb, tmpsect;
if (resetstat != 2)
numyaxbunches = 0;
for (i=0; i<MAXSECTORS; i++)
{
if (resetstat != 2 || i>=numsectors)
yax_bunchnum[i][0] = yax_bunchnum[i][1] = -1;
nextsectbunch[0][i] = nextsectbunch[1][i] = -1;
}
for (i=0; i<YAX_MAXBUNCHES; i++)
headsectbunch[0][i] = headsectbunch[1][i] = -1;
for (i=0; i<MAXWALLS; i++)
if (resetstat != 2 || i>=numwalls)
yax_nextwall[i][0] = yax_nextwall[i][1] = -1;
if (resetstat==1)
return;
// constuct singly linked list of sectors-of-bunch
// read bunchnums directly from the sector struct in yax_[gs]etbunch{es}!
editstatus = (resetstat==0);
// use oeditstatus to check for in-gamedness from here on!
if (resetstat==0)
{
// make bunchnums consecutive
uint8_t *const havebunch = (uint8_t *)tempbuf;
uint8_t *const bunchmap = havebunch + (YAX_MAXBUNCHES>>3);
int32_t dasub = 0;
Bmemset(havebunch, 0, YAX_MAXBUNCHES>>3);
for (i=0; i<numsectors; i++)
{
yax_getbunches(i, &cb, &fb);
if (cb>=0)
havebunch[cb>>3] |= (1<<(cb&7));
if (fb>=0)
havebunch[fb>>3] |= (1<<(fb&7));
}
for (i=0; i<YAX_MAXBUNCHES; i++)
{
if ((havebunch[i>>3]&(1<<(i&7)))==0)
{
bunchmap[i] = 255;
dasub++;
continue;
}
bunchmap[i] = i-dasub;
}
for (i=0; i<numsectors; i++)
{
yax_getbunches(i, &cb, &fb);
if (cb>=0)
yax_setbunch(i, YAX_CEILING, bunchmap[cb]);
if (fb>=0)
yax_setbunch(i, YAX_FLOOR, bunchmap[fb]);
}
}
// in-struct --> array transfer (resetstat==0) and list construction
for (i=numsectors-1; i>=0; i--)
{
yax_getbunches(i, &cb, &fb);
if (resetstat==0)
{
yax_bunchnum[i][0] = cb;
yax_bunchnum[i][1] = fb;
}
if (cb >= 0)
{
if (resetstat==0)
for (j=sector[i].wallptr; j<sector[i].wallptr+sector[i].wallnum; j++)
{
if (yax_islockededge(j,YAX_CEILING))
{
yax_nextwall[j][0] = YAX_NEXTWALL(j,0);
if (oeditstatus==0)
YAX_NEXTWALL(j,0) = 0; // reset lotag!
}
}
if (headsectbunch[0][cb] == -1)
{
headsectbunch[0][cb] = i;
// not duplicated in floors, since every extended ceiling
// must have a corresponding floor:
if (resetstat==0)
numyaxbunches++;
}
else
{
tmpsect = headsectbunch[0][cb];
headsectbunch[0][cb] = i;
nextsectbunch[0][i] = tmpsect;
}
}
if (fb >= 0)
{
if (resetstat==0)
for (j=sector[i].wallptr; j<sector[i].wallptr+sector[i].wallnum; j++)
{
if (yax_islockededge(j,YAX_FLOOR))
{
yax_nextwall[j][1] = YAX_NEXTWALL(j,1);
if (oeditstatus==0)
YAX_NEXTWALL(j,1) = -1; // reset extra!
}
}
if (headsectbunch[1][fb] == -1)
headsectbunch[1][fb] = i;
else
{
tmpsect = headsectbunch[1][fb];
headsectbunch[1][fb] = i;
nextsectbunch[1][i] = tmpsect;
}
}
}
editstatus = oeditstatus;
}
int32_t yax_getneighborsect(int32_t x, int32_t y, int32_t sectnum, int32_t cf, int16_t *ret_bunchnum)
{
int16_t bunchnum = yax_getbunch(sectnum, cf);
int32_t i;
if (bunchnum < 0)
return -1;
for (SECTORS_OF_BUNCH(bunchnum, !cf, i))
if (inside(x, y, i)==1)
{
if (ret_bunchnum)
*ret_bunchnum = bunchnum;
return i;
}
return -1;
}
// indexed as a list:
static int16_t bunches[2][YAX_MAXBUNCHES];
// indexed with bunchnums directly:
static int16_t bunchsec[YAX_MAXBUNCHES], bunchdist[YAX_MAXBUNCHES];
static int32_t ymostallocsize = 0; // numyaxbunches*xdimen (no sizeof(int16_t) here!)
static int16_t *yumost=NULL, *ydmost=NULL; // used as if [numyaxbunches][xdimen]
uint8_t haveymost[YAX_MAXBUNCHES>>3];
// adapted from build.c
static void yax_getclosestpointonwall(int32_t dawall, int32_t *closestx, int32_t *closesty)
{
int64_t i, j, wx,wy, wx2,wy2, dx, dy;
wx = wall[dawall].x;
wy = wall[dawall].y;
wx2 = wall[wall[dawall].point2].x;
wy2 = wall[wall[dawall].point2].y;
dx = wx2 - wx;
dy = wy2 - wy;
i = dx*(globalposx-wx) + dy*(globalposy-wy);
if (i <= 0) { *closestx = wx; *closesty = wy; return; }
j = dx*dx + dy*dy;
if (i >= j) { *closestx = wx2; *closesty = wy2; return; }
i=((i<<15)/j)<<15;
*closestx = wx + ((dx*i)>>30);
*closesty = wy + ((dy*i)>>30);
}
static inline int32_t yax_walldist(int32_t w)
{
int32_t closestx, closesty;
yax_getclosestpointonwall(w, &closestx, &closesty);
return klabs(closestx-globalposx) + klabs(closesty-globalposy);
// return klabs(wall[w].x-globalposx) + klabs(wall[w].y-globalposy);
}
// calculate distances to bunches and best start-drawing sectors
static void yax_scanbunches(int32_t bbeg, int32_t numhere, const uint8_t *lastgotsector)
{
int32_t bnchcnt, bunchnum, j, k;
int32_t startwall, endwall;
UNREFERENCED_PARAMETER(lastgotsector);
scansector_retfast = 1;
scansector_collectsprites = 0;
for (bnchcnt=bbeg; bnchcnt<bbeg+numhere; bnchcnt++)
{
int32_t walldist, bestsec=-1;
int32_t bestwalldist=INT32_MAX, bestbestdist=INT32_MAX;
bunchnum = bunches[yax_globalcf][bnchcnt];
for (SECTORS_OF_BUNCH(bunchnum,!yax_globalcf, k))
{
int32_t checkthisec = 0;
if (inside(globalposx, globalposy, k)==1)
{
bestsec = k;
bestbestdist = 0;
break;
}
startwall = sector[k].wallptr;
endwall = startwall+sector[k].wallnum;
for (j=startwall; j<endwall; j++)
{
/*
if ((w=yax_getnextwall(j,!yax_globalcf))>=0)
if ((ns=wall[w].nextsector)>=0)
if ((lastgotsector[ns>>3]&(1<<(ns&7)))==0)
continue;
*/
walldist = yax_walldist(j);
if (walldist < bestwalldist)
{
checkthisec = 1;
bestwalldist = walldist;
}
}
if (checkthisec)
{
numscans = numbunches = 0;
if (getrendermode()==0)
scansector(k);
#ifdef USE_OPENGL
else
polymost_scansector(k);
#endif
if (numbunches > 0)
{
bestsec = k;
bestbestdist = bestwalldist;
}
}
}
bunchsec[bunchnum] = bestsec;
bunchdist[bunchnum] = bestbestdist;
}
scansector_collectsprites = 1;
scansector_retfast = 0;
}
static int yax_cmpbunches(const int16_t *b1, const int16_t *b2)
{
return (bunchdist[*b2] - bunchdist[*b1]);
}
void yax_tweakpicnums(int32_t bunchnum, int32_t cf, int32_t restore)
{
// for polymer, this is called before polymer_drawrooms() with restore==0
// and after polymer_drawmasks() with restore==1
int32_t i, dastat;
static int16_t opicnum[2][MAXSECTORS];
#ifdef DEBUGGINGAIDS
static uint8_t expect_restore[2][YAX_MAXBUNCHES];
// must call this with restore == 0, 1, 0, 1, 0, 1, ...
assert(expect_restore[cf][bunchnum] == restore);
expect_restore[cf][bunchnum] = !expect_restore[cf][bunchnum];
#endif
for (SECTORS_OF_BUNCH(bunchnum, cf, i))
{
dastat = (SECTORFLD(i,stat, cf)&(128+256));
// only consider non-masked ceilings/floors
if (dastat==0 || (restore==1 && opicnum[cf][i]&0x8000))
{
if (!restore)
{
opicnum[cf][i] = SECTORFLD(i,picnum, cf);
if (editstatus && showinvisibility)
SECTORFLD(i,picnum, cf) = MAXTILES-1;
else //if ((dastat&(128+256))==0)
SECTORFLD(i,picnum, cf) = 13; //FOF;
}
else
{
SECTORFLD(i,picnum, cf) = opicnum[cf][i];
}
#ifdef POLYMER
// will be called only in editor
if (rendmode==4)
{
if (!restore)
{
SECTORFLD(i,stat, cf) |= 128;
opicnum[cf][i] |= 0x8000;
}
else
{
SECTORFLD(i,stat, cf) &= ~128;
SECTORFLD(i,picnum, cf) &= 0x7fff;
opicnum[cf][i] = 0;
}
}
#endif
}
}
}
static void yax_copytsprites()
{
int32_t i, spritenum, gotthrough, sectnum;
int32_t sortcnt = yax_spritesortcnt[yax_globallev];
const spritetype *spr;
for (i=0; i<sortcnt; i++)
{
spritenum = yax_tsprite[yax_globallev][i];
gotthrough = spritenum&(MAXSPRITES|(MAXSPRITES<<1));
spritenum &= MAXSPRITES-1;
spr = &sprite[spritenum];
sectnum = spr->sectnum;
if (gotthrough == (MAXSPRITES|(MAXSPRITES<<1)))
{
if (yax_globalbunch != yax_tsprfrombunch[yax_globallev][i])
continue;
}
else
{
int32_t cf = -1;
if (gotthrough == MAXSPRITES)
cf = YAX_CEILING; // sprite got here through the ceiling of lower sector
else if (gotthrough == (MAXSPRITES<<1))
cf = YAX_FLOOR; // sprite got here through the floor of upper sector
if (cf != -1)
{
if ((yax_globallev-YAX_MAXDRAWS)*(-1 + 2*cf) > 0)
if (yax_getbunch(sectnum, cf) != yax_globalbunch)
continue;
sectnum = yax_getneighborsect(spr->x, spr->y, sectnum, cf, NULL);
if (sectnum < 0)
continue;
}
}
if (spritesortcnt >= MAXSPRITESONSCREEN)
break;
Bmemcpy(&tsprite[spritesortcnt], spr, sizeof(spritetype));
spriteext[spritenum].tspr = &tsprite[spritesortcnt];
tsprite[spritesortcnt].owner = spritenum;
tsprite[spritesortcnt].sectnum = sectnum; // potentially tweak sectnum!
spritesortcnt++;
}
}
void yax_preparedrawrooms(void)
{
if (getrendermode()==4 || numyaxbunches==0)
return;
g_nodraw = 1;
Bmemset(yax_spritesortcnt, 0, sizeof(yax_spritesortcnt));
Bmemset(haveymost, 0, (numyaxbunches+7)>>3);
if (getrendermode()==0 && ymostallocsize < xdimen*numyaxbunches)
{
ymostallocsize = xdimen*numyaxbunches;
yumost = Brealloc(yumost, ymostallocsize*sizeof(int16_t));
ydmost = Brealloc(ydmost, ymostallocsize*sizeof(int16_t));
if (!yumost || !ydmost)
{
initprintf("OUT OF MEMORY in yax_preparedrawrooms!\n");
uninitengine();
exit(10);
}
}
}
void yax_drawrooms(void (*ExtAnalyzeSprites)(void), int32_t horiz, int16_t sectnum)
{
static uint8_t havebunch[YAX_MAXBUNCHES>>3];
int32_t i, j, k, lev, cf, nmp;
int32_t bnchcnt, bnchnum[2] = {0,0}, maxlev[2];
int16_t ourbunch[2] = {-1,-1}, osectnum=sectnum;
int32_t bnchbeg[YAX_MAXDRAWS][2], bnchend[YAX_MAXDRAWS][2];
int32_t bbeg, numhere;
// original (1st-draw) and accumulated ('per-level') gotsector bitmaps
static uint8_t ogotsector[MAXSECTORS>>3], lgotsector[MAXSECTORS>>3];
#ifdef YAX_DEBUG
uint64_t t;
#endif
if (getrendermode()==4 || numyaxbunches==0)
{
#ifdef ENGINE_SCREENSHOT_DEBUG
engine_screenshot = 0;
#endif
return;
}
// if we're here, there was just a drawrooms() call with g_nodraw=1
Bmemcpy(ogotsector, gotsector, (numsectors+7)>>3);
if (sectnum >= 0)
yax_getbunches(sectnum, &ourbunch[0], &ourbunch[1]);
Bmemset(&havebunch, 0, (numyaxbunches+7)>>3);
// first scan all bunches above, then all below...
for (cf=0; cf<2; cf++)
{
yax_globalcf = cf;
if (cf==1)
{
sectnum = osectnum;
Bmemcpy(gotsector, ogotsector, (numsectors+7)>>3);
}
for (lev=0; /*lev<YAX_MAXDRAWS*/; lev++)
{
yax_globallev = YAX_MAXDRAWS + (-1 + 2*cf)*(lev+1);
bbeg = bnchbeg[lev][cf] = bnchend[lev][cf] = bnchnum[cf];
numhere = 0;
for (i=0; i<numsectors; i++)
{
if (!(gotsector[i>>3]&(1<<(i&7))))
continue;
j = yax_getbunch(i, cf);
if (j >= 0 && !(havebunch[j>>3]&(1<<(j&7))))
{
if (getrendermode()==0 && (haveymost[j>>3]&(1<<(j&7)))==0)
{
yaxdebug("%s, l %d: skipped bunch %d (no *most)", cf?"v":"^", lev, j);
continue;
}
if ((SECTORFLD(i,stat, cf)&2) ||
(cf==0 && globalposz > sector[i].ceilingz) ||
(cf==1 && globalposz < sector[i].floorz))
{
havebunch[j>>3] |= (1<<(j&7));
bunches[cf][bnchnum[cf]++] = j;
bnchend[lev][cf]++;
numhere++;
}
}
}
if (numhere > 0)
{
// found bunches -- need to fake-draw
yax_scanbunches(bbeg, numhere, (uint8_t *)gotsector);
qsort(&bunches[cf][bbeg], numhere, sizeof(int16_t),
(int(*)(const void *, const void *))&yax_cmpbunches);
if (numhere > 1 && lev != YAX_MAXDRAWS-1)
Bmemset(lgotsector, 0, (numsectors+7)>>3);
for (bnchcnt=bbeg; bnchcnt < bbeg+numhere; bnchcnt++)
{
j = bunches[cf][bnchcnt]; // the actual bunchnum...
yax_globalbunch = j;
#ifdef YAX_DEBUG
t=gethiticks();
#endif
k = bunchsec[j];
if (k < 0)
{
yaxprintf("%s, l %d: skipped bunch %d\n", cf?"v":"^", lev, j);
continue;
}
if (lev != YAX_MAXDRAWS-1)
{
#ifdef YAX_DEBUG
int32_t odsprcnt = yax_spritesortcnt[yax_globallev];
#endif
// +MAXSECTORS: force
drawrooms(globalposx,globalposy,globalposz,globalang,horiz,k+MAXSECTORS);
if (numhere > 1)
for (i=0; i<(numsectors+7)>>3; i++)
lgotsector[i] |= gotsector[i];
yaxdebug("l%d: faked (bn %2d) sec %4d,%3d dspr, ob=[%2d,%2d], sn=%4d, %.3f ms",
yax_globallev-YAX_MAXDRAWS, j, k, yax_spritesortcnt[yax_globallev]-odsprcnt,
ourbunch[0],ourbunch[1],sectnum,
(double)(1000*(gethiticks()-t))/hitickspersec);
}
if (ourbunch[cf]==j)
{
ourbunch[cf] = yax_getbunch(k, cf);
sectnum = k;
}
}
if (numhere > 1 && lev != YAX_MAXDRAWS-1)
Bmemcpy(gotsector, lgotsector, (numsectors+7)>>3);
}
if (numhere==0 || lev==YAX_MAXDRAWS-1)
{
// no new bunches or max level reached
maxlev[cf] = lev - (numhere==0);
break;
}
}
}
// yax_globalcf = -1;
// now comes the real drawing!
g_nodraw = 0;
scansector_collectsprites = 0;
#if 1
//def ENGINE_CLEAR_SCREEN
if (editstatus==1)
{
if (getrendermode()==0)
{
begindrawing();
j = 0;
for (i=0; i<xdimen*ydimen; i++)
{
*((char *)frameplace + i) = (char)j;
j = (j+1)%xdimen;
}
enddrawing();
}
#ifdef USE_OPENGL
else
{
bglClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
}
#endif
}
#endif
for (cf=0; cf<2; cf++)
{
yax_globalcf = cf;
for (lev=maxlev[cf]; lev>=0; lev--)
{
yax_globallev = YAX_MAXDRAWS + (-1 + 2*cf)*(lev+1);
scansector_collectsprites = (lev == YAX_MAXDRAWS-1);
for (bnchcnt=bnchbeg[lev][cf]; bnchcnt<bnchend[lev][cf]; bnchcnt++)
{
j = bunches[cf][bnchcnt]; // the actual bunchnum...
k = bunchsec[j]; // best start-drawing sector
yax_globalbunch = j;
#ifdef YAX_DEBUG
t=gethiticks();
#endif
yax_tweakpicnums(j, cf, 0);
if (k < 0)
continue;
yax_nomaskdidit = 0;
for (nmp=r_tror_nomaskpass; nmp>=0; nmp--)
{
yax_nomaskpass = nmp;
drawrooms(globalposx,globalposy,globalposz,globalang,horiz,k+MAXSECTORS); // +MAXSECTORS: force
if (nmp==1)
{
yaxdebug("nm1 l%d: DRAWN (bn %2d) sec %4d, %.3f ms",
yax_globallev-YAX_MAXDRAWS, j, k,
(double)(1000*(gethiticks()-t))/hitickspersec);
if (!yax_nomaskdidit)
{
yax_nomaskpass = 0;
break; // no need to draw the same stuff twice
}
Bmemcpy(yax_gotsector, gotsector, (numsectors+7)>>3);
}
}
if (!scansector_collectsprites)
spritesortcnt = 0;
yax_copytsprites();
yaxdebug("nm0 l%d: DRAWN (bn %2d) sec %4d,%3d tspr, %.3f ms",
yax_globallev-YAX_MAXDRAWS, j, k, spritesortcnt,
(double)(1000*(gethiticks()-t))/hitickspersec);
ExtAnalyzeSprites();
drawmasks();
}
if (lev < maxlev[cf])
for (bnchcnt=bnchbeg[lev+1][cf]; bnchcnt<bnchend[lev+1][cf]; bnchcnt++)
yax_tweakpicnums(bunches[cf][bnchcnt], cf, 1); // restore picnums
}
}
#ifdef YAX_DEBUG
t=gethiticks();
#endif
yax_globalcf = -1;
yax_globalbunch = -1;
yax_globallev = YAX_MAXDRAWS;
scansector_collectsprites = 0;
// draw base level
drawrooms(globalposx,globalposy,globalposz,globalang,horiz,osectnum);
// if (scansector_collectsprites)
// spritesortcnt = 0;
yax_copytsprites();
yaxdebug("DRAWN base level sec %d,%3d tspr, %.3f ms", osectnum,
spritesortcnt, (double)(1000*(gethiticks()-t))/hitickspersec);
scansector_collectsprites = 1;
for (cf=0; cf<2; cf++)
if (maxlev[cf] >= 0)
for (bnchcnt=bnchbeg[0][cf]; bnchcnt<bnchend[0][cf]; bnchcnt++)
yax_tweakpicnums(bunches[cf][bnchcnt], cf, 1); // restore picnums
#ifdef ENGINE_SCREENSHOT_DEBUG
engine_screenshot = 0;
#endif
#ifdef YAX_DEBUG_YMOSTS
if (getrendermode()==0 && numyaxbunches>0)
{
char purple = getclosestcol(63, 0, 63);
char yellow = getclosestcol(63, 63, 0);
begindrawing();
for (i=0; i<numyaxbunches; i++)
{
int32_t x, x1;
if ((haveymost[i>>3]&(1<<i&7))==0)
continue;
x1 = i*xdimen;
for (x=x1; x<x1+xdimen; x++)
{
if (yumost[x] >= 0 && yumost[x] < ydim && (x&1))
*((char *)frameplace + yumost[x]*bytesperline + x-x1) = purple;
if (ydmost[x]-1 >= 0 && ydmost[x]-1 < ydim && !(x&1))
*((char *)frameplace + (ydmost[x]-1)*bytesperline + x-x1) = yellow;
}
}
enddrawing();
}
#endif
}
#endif
//
// setslope
//
void setslope(int32_t sectnum, int32_t cf, int16_t slope)
{
if (slope==0)
{
SECTORFLD(sectnum,stat, cf) &= ~2;
SECTORFLD(sectnum,heinum, cf) = 0;
}
else
{
SECTORFLD(sectnum,stat, cf) |= 2;
SECTORFLD(sectnum,heinum, cf) = slope;
}
}
////////// editor side view //////////
int32_t m32_sideview = 0;
int32_t m32_sideelev = 256; // elevation in BUILD degrees, 0..512
int16_t m32_sideang = 200; // azimuth, 0..2047
int32_t m32_sidecos, m32_sidesin;
int32_t m32_swcnt;
int32_t m32_wallscreenxy[MAXWALLS][2];
int16_t m32_wallsprite[MAXWALLS+MAXSPRITES];
static int32_t m32_sidedist[MAXWALLS+MAXSPRITES];
static vec3_t m32_viewplane;
////// sector-like clipping for sprites //////
#ifdef HAVE_CLIPSHAPE_FEATURE
typedef struct
{
int16_t numsectors, numwalls;
sectortype *sector;
walltype *wall;
} mapinfo_t;
static void mapinfo_set(mapinfo_t *bak, mapinfo_t *new)
{
if (bak)
{
bak->numsectors = numsectors;
bak->numwalls = numwalls;
bak->sector = sector;
bak->wall = wall;
}
if (new)
{
numsectors = new->numsectors;
numwalls = new->numwalls;
sector = new->sector;
wall = new->wall;
}
}
static mapinfo_t origmapinfo, clipmapinfo;
static int32_t quickloadboard=0;
#define CM_MAX 256 // must be a power of 2
typedef struct
{
int16_t qbeg, qend; // indices into sectq
int16_t picnum, next;
int32_t maxdist;
} clipinfo_t;
static int32_t numclipmaps;
static clipinfo_t clipinfo[CM_MAX];
static int32_t numclipsects; // number in sectq[]
static int16_t *sectoidx, *sectq; // [numsectors]
static int16_t pictoidx[MAXTILES]; // maps tile num to clipinfo[] index
static int16_t *tempictoidx;
static sectortype *loadsector;
static walltype *loadwall, *loadwallinv;
static spritetype *loadsprite;
// sectoidx bits
#define CM_NONE (CM_MAX<<1)
#define CM_SOME (CM_NONE-1)
#define CM_OUTER (CM_MAX) // sector surrounds clipping sector
// sprite -> sector tag mappings
#define CM_XREPEAT floorpal
#define CM_YREPEAT floorxpanning
#define CM_XOFFSET ceilingshade
#define CM_YOFFSET floorshade
#define CM_CSTAT hitag
#define CM_ANG extra
#define CM_FLOORZ(Sec) (*(int32_t *)&sector[Sec].ceilingxpanning) // ceilingxpanning,ceilingypanning,floorpicnum
#define CM_CEILINGZ(Sec) (*(int32_t *)&sector[Sec].visibility) // visibility,filler,lotag
// backup of original normalized coordinates
#define CM_WALL_X(Wal) (*(int32_t *)&wall[Wal].picnum)
#define CM_WALL_Y(Wal) (*(int32_t *)&wall[Wal].lotag)
// don't rotate when applying clipping, for models with rotational symmetry
#define CM_NOROT(Spri) (sprite[Spri].cstat&2)
#define CM_NOROTS(Sect) (sector[Sect].CM_CSTAT&2)
static void clipmapinfo_init()
{
int32_t i;
numclipmaps = 0;
numclipsects = 0;
if (sectq) { Bfree(sectq); sectq=NULL; }
if (sectoidx) { Bfree(sectoidx); sectoidx=NULL; }
if (tempictoidx) { Bfree(tempictoidx); tempictoidx=NULL; }
for (i=0; i<MAXTILES; i++)
pictoidx[i]=-1;
if (loadsector) { Bfree(loadsector); loadsector=NULL; }
if (loadwall) { Bfree(loadwall); loadwall=NULL; }
if (loadwallinv) { Bfree(loadwallinv); loadwallinv=NULL; }
if (loadsprite) { Bfree(loadsprite); loadsprite=NULL; }
clipmapinfo.numsectors = clipmapinfo.numwalls = 0;
clipmapinfo.sector=NULL;
clipmapinfo.wall=NULL;
numsectors = 0;
numwalls = 0;
}
// loads the clip maps 0 through 9.
// this should be called before any real map is loaded.
int32_t clipmapinfo_load(const char *filename)
{
int32_t i,k,w, px,py,pz;
int16_t ang,cs;
char fn[BMAX_PATH], loadedwhich[32]={0}, *lwcp=loadedwhich;
int32_t slen, fi, fisec[10], fispr[10];
int32_t ournumsectors=0, ournumwalls=0, ournumsprites=0, numsprites;
clipmapinfo_init();
loadsector = Bmalloc(MAXSECTORS * sizeof(sectortype));
loadwall = Bmalloc(MAXWALLS * sizeof(walltype));
loadsprite = Bmalloc(MAXSPRITES * sizeof(spritetype));
if (!loadsector || !loadwall || !loadsprite)
{
clipmapinfo_init();
return 1;
}
Bmemset(fisec, 0, sizeof(fisec));
Bmemset(fispr, 0, sizeof(fispr));
Bstrcpy(fn, filename);
slen = Bstrlen(fn);
quickloadboard = 1;
for (fi='0'; fi<='9'; fi++)
{
fisec[fi-'0'] = ournumsectors;
fispr[fi-'0'] = ournumsprites;
fn[slen-5] = fi;
i = loadboard(fn, 0, &px,&py,&pz, &ang,&cs);
if (i<0)
continue;
for (numsprites=0; numsprites<MAXSPRITES; numsprites++)
if (sprite[numsprites].statnum == MAXSTATUS)
break;
if (ournumsectors+numsectors>MAXSECTORS ||
ournumwalls+numwalls>MAXWALLS ||
ournumsprites+numsprites>MAXSPRITES)
{
initprintf("clip map: warning: exceeded limits when loading %s, aborting.\n", fn);
break;
}
Bmemcpy(loadsector+ournumsectors, sector, numsectors*sizeof(sectortype));
Bmemcpy(loadwall+ournumwalls, wall, numwalls*sizeof(walltype));
Bmemcpy(loadsprite+ournumsprites, sprite, numsprites*sizeof(spritetype));
for (i=ournumsectors; i<ournumsectors+numsectors; i++)
loadsector[i].wallptr += ournumwalls;
for (i=ournumwalls; i<ournumwalls+numwalls; i++)
{
if (loadwall[i].point2>=0)
loadwall[i].point2 += ournumwalls;
if (loadwall[i].nextwall>=0)
{
loadwall[i].nextwall += ournumwalls;
loadwall[i].nextsector += ournumsectors;
}
}
for (i=ournumsprites; i<ournumsprites+numsprites; i++)
if (loadsprite[i].sectnum>=0)
loadsprite[i].sectnum += ournumsectors;
ournumsectors += numsectors;
ournumwalls += numwalls;
ournumsprites += numsprites;
if (lwcp != loadedwhich)
{
*lwcp++ = ',';
*lwcp++ = ' ';
}
*lwcp++ = fi;
*lwcp = 0;
}
quickloadboard = 0;
if (ournumsectors==0 || ournumwalls==0 || ournumsprites==0) // nothing loaded
{
clipmapinfo_init();
return -1;
}
// shrink
loadsector = Brealloc(loadsector, ournumsectors*sizeof(sectortype));
loadwall = Brealloc(loadwall, ournumwalls*sizeof(walltype));
Bmemcpy(sector, loadsector, ournumsectors*sizeof(sectortype));
Bmemcpy(wall, loadwall, ournumwalls*sizeof(walltype));
Bmemcpy(sprite, loadsprite, ournumsprites*sizeof(spritetype));
numsectors = ournumsectors;
numwalls = ournumwalls;
// vvvv don't use headsprite[sect,stat]! vvvv
sectoidx = Bmalloc(numsectors*sizeof(sectoidx[0]));
if (!sectoidx || !sector || !wall)
{
clipmapinfo_init();
return 1;
}
for (i=0; i<numsectors; i++)
sectoidx[i] = CM_NONE;
// determine outer sectors
for (i=0; i<numsectors; i++)
{
for (w=sector[i].wallptr; w<sector[i].wallptr+sector[i].wallnum; w++)
if (wall[w].nextsector<0)
{
sectoidx[i] = CM_OUTER;
break;
}
}
// break connections between outer sectors
for (i=0; i<numsectors; i++)
{
if (sectoidx[i] == CM_OUTER)
for (w=sector[i].wallptr; w<sector[i].wallptr+sector[i].wallnum; w++)
{
k = wall[w].nextwall;
if (k>=0 && sectoidx[wall[w].nextsector]==CM_OUTER)
{
wall[k].nextwall = wall[k].nextsector = -1;
wall[w].nextwall = wall[w].nextsector = -1;
}
}
}
{
int16_t ns, outersect;
int32_t pn,scnt, x,y,z, maxdist;
sectq = Bmalloc(numsectors*sizeof(sectq[0]));
tempictoidx = Bmalloc(MAXTILES*sizeof(tempictoidx[0]));
if (!sectq || !tempictoidx)
{
clipmapinfo_init();
return 1;
}
for (i=0; i<MAXTILES; i++)
tempictoidx[i]=-1;
// collect sprite picnums
for (i=0; i<MAXSPRITES && sprite[i].statnum<MAXSTATUS; i++)
{
pn = sprite[i].picnum;
k = sprite[i].sectnum;
// -v- note the <= ignore sprites in outer sectors
if (pn<=0 || pn>=MAXTILES || k<0 || k>=numsectors || (sectoidx[k]&CM_OUTER))
continue;
if (numclipmaps >= CM_MAX)
{
initprintf("warning: reached max clip map number %d, not processing any more\n", CM_MAX);
break;
}
// chain
if (pictoidx[pn]>=0)
{
if (sectoidx[k]&CM_SOME)
{
for (fi=0; fi<9; fi++)
if (k>=fisec[fi])
break;
initprintf("clip map %d: error: tried to chain picnum %d (sprite %d) in sector %d which"
" already belongs to picnum %d.\n", fi, pn, i-fispr[fi], k-fisec[fi],
clipinfo[sectoidx[k]].picnum);
clipmapinfo_init();
return 2;
}
// new one is front
clipinfo[numclipmaps].next = pictoidx[pn];
pictoidx[pn] = numclipmaps;
}
else
{
clipinfo[numclipmaps].next = -1;
pictoidx[pn] = numclipmaps;
}
if (!CM_NOROT(i))
{
if (sprite[i].ang!=1536 && sprite[i].ang!=512)
{
for (fi=0; fi<9; fi++)
if (i>=fispr[fi])
break;
initprintf("clip map %d: warning: sprite %d pointing neither northward nor southward. %s will be wrong.\n",
fi, i-fispr[fi], (sprite[i].cstat&48)==32 ? "Scaling and flipping" : "X-flipping");
}
}
clipinfo[numclipmaps].picnum = pn;
// collect sectors
scnt = numclipsects;
sectq[numclipsects++] = k;
sectoidx[k] = numclipmaps;
clipinfo[numclipmaps].qbeg = scnt;
outersect = -1;
do
{
k = sectq[scnt];
for (w=sector[k].wallptr; w<sector[k].wallptr+sector[k].wallnum; w++)
{
ns = wall[w].nextsector;
if (ns>=0)
{
if (sectoidx[ns]==CM_NONE)
{
sectoidx[ns] = numclipmaps;
sectq[numclipsects++] = ns;
}
else if (sectoidx[ns]&CM_OUTER)
{
if (outersect>=0 && ns!=outersect)
{
for (fi=0; fi<9; fi++)
if (ns>=fisec[fi])
break;
initprintf("clip map %d: error: encountered more than one outer sector (%d and %d)"
" for sprite %d.\n", fi, outersect-fisec[fi], ns-fisec[fi], i-fispr[fi]);
clipmapinfo_init();
return 3;
}
outersect = ns;
sectoidx[outersect] |= numclipmaps;
}
else if (sectoidx[ns]!=numclipmaps)
{
for (fi=0; fi<9; fi++)
if (ns>=fisec[fi])
break;
initprintf("clip map %d: error: encountered sector %d belonging to index %d"
" while collecting sectors for sprite %d (index %d).\n",
fi, ns-fisec[fi], sectoidx[ns], i-fispr[fi], numclipmaps);
clipmapinfo_init();
return 4;
}
}
}
}
while (++scnt < numclipsects);
if (outersect==-1)
{
initprintf("clip map: INTERNAL ERROR: outersect==-1!\n");
clipmapinfo_init();
return 5;
}
sectq[numclipsects++] = outersect; // last is outer
clipinfo[numclipmaps].qend = numclipsects-1;
// normalize
maxdist = 0;
for (scnt=clipinfo[numclipmaps].qbeg; scnt<=clipinfo[numclipmaps].qend; scnt++)
{
k = sectq[scnt];
x = sprite[i].x;
y = sprite[i].y;
z = sprite[i].z;
sector[k].floorz -= z;
sector[k].ceilingz -= z;
if (scnt==clipinfo[numclipmaps].qbeg)
{
// backup sprite tags since we'll discard sprites later
sector[k].CM_XREPEAT = sprite[i].xrepeat;
sector[k].CM_YREPEAT = sprite[i].yrepeat;
sector[k].CM_XOFFSET = sprite[i].xoffset;
sector[k].CM_YOFFSET = sprite[i].yoffset;
sector[k].CM_CSTAT = sprite[i].cstat;
sector[k].CM_ANG = sprite[i].ang;
}
// backup floor and ceiling z
CM_FLOORZ(k) = sector[k].floorz;
CM_CEILINGZ(k) = sector[k].ceilingz;
for (w=sector[k].wallptr; w<sector[k].wallptr+sector[k].wallnum; w++)
{
wall[w].x -= x;
wall[w].y -= y;
if (scnt!=clipinfo[numclipmaps].qend)
{
if (CM_NOROT(i))
{
if (klabs(wall[w].x) > maxdist)
maxdist = klabs(wall[w].x);
if (klabs(wall[w].y) > maxdist)
maxdist = klabs(wall[w].y);
}
else
{
int32_t tmp = ksqrt(wall[w].x*wall[w].x + wall[w].y*wall[w].y);
if (tmp > maxdist)
maxdist = tmp;
}
}
// aliasing
if (wall[w].lotag>0 || wall[w].hitag>0)
{
int32_t ii;
if (wall[w].lotag>0 && wall[w].hitag>0)
{
if (wall[w].lotag > wall[w].hitag)
swapshort(&wall[w].lotag, &wall[w].hitag);
for (ii=wall[w].lotag; ii<wall[w].hitag; ii++)
tempictoidx[ii] = numclipmaps;
}
else if (wall[w].lotag>0)
{
if (wall[w].lotag<MAXTILES)
tempictoidx[wall[w].lotag] = numclipmaps;
}
else
{
if (wall[w].hitag<MAXTILES)
tempictoidx[wall[w].hitag] = numclipmaps;
}
}
CM_WALL_X(w) = wall[w].x;
CM_WALL_Y(w) = wall[w].y;
}
}
clipinfo[numclipmaps].maxdist = maxdist;
numclipmaps++;
}
}
// yes, too much copying, but better than ugly code
Bmemcpy(loadsector, sector, ournumsectors*sizeof(sectortype));
Bmemcpy(loadwall, wall, ournumwalls*sizeof(walltype));
// loadwallinv will contain all walls with inverted orientation for x/y-flip handling
loadwallinv = Bmalloc(ournumwalls*sizeof(walltype));
if (!loadwallinv)
{
clipmapinfo_init();
return 1;
}
{
int32_t j, loopstart, loopend, numloopwalls;
// invert walls!
loopstart = 0;
for (j=0; j<ournumwalls; j++)
{
wall[j].nextsector = wall[j].nextwall = -1;
if (wall[j].point2 < j)
{
loopend = j+1;
numloopwalls = loopend-loopstart;
if (numloopwalls<3)
{
loopstart = loopend;
continue;
}
for (k=0; k<numloopwalls; k++)
{
wall[loopstart+k].x = loadwall[loopstart + (numloopwalls+1-k)%numloopwalls].x;
wall[loopstart+k].y = loadwall[loopstart + (numloopwalls+1-k)%numloopwalls].y;
CM_WALL_X(loopstart+k) = wall[loopstart+k].x;
CM_WALL_Y(loopstart+k) = wall[loopstart+k].y;
}
loopstart = loopend;
}
}
// reconstruct wall connections
for (i=0; i<ournumsectors; i++)
{
for (j=sector[i].wallptr; j<sector[i].wallptr+sector[i].wallnum; j++)
checksectorpointer(j, i);
}
}
Bmemcpy(loadwallinv, wall, ournumwalls*sizeof(walltype));
clipmapinfo.numsectors = numsectors;
clipmapinfo.sector = loadsector;
clipmapinfo.numwalls = numwalls;
clipmapinfo.wall = loadwall;
for (i=0; i<MAXTILES; i++)
{
if (pictoidx[i]==-1 && tempictoidx[i]>=0)
pictoidx[i]=tempictoidx[i];
}
Bfree(loadsprite); loadsprite=NULL;
Bfree(tempictoidx); tempictoidx=NULL;
// don't let other code be distracted by the temporary map we constructed
numsectors = 0;
numwalls = 0;
initspritelists();
initprintf("Loaded clip map%s %s.\n", lwcp==loadedwhich+1?"":"s", loadedwhich);
return 0;
}
#endif
////// //////
#define WALLS_ARE_CONSISTENT(k) ((wall[k].x == x2 && wall[k].y == y2) \
&& ((wall[wall[k].point2]).x == x1 && (wall[wall[k].point2]).y == y1))
static int32_t getscore(int32_t w1c, int32_t w1f, int32_t w2c, int32_t w2f)
{
int32_t minflor, maxceil;
if (w1c > w1f)
swaplong(&w1c, &w1f);
if (w2c > w2f)
swaplong(&w2c, &w2f);
// now: c <= f for each "wall-vline"
maxceil = max(w1c, w2c);
minflor = min(w1f, w2f);
return minflor-maxceil;
}
const int16_t *chsecptr_onextwall = NULL;
int32_t checksectorpointer(int16_t i, int16_t sectnum)
{
int32_t startsec, endsec;
int32_t j, k, startwall, endwall, x1, y1, x2, y2, numnewwalls=0;
int32_t bestnextwall=-1, bestnextsec=-1, bestwallscore=INT32_MIN;
int32_t cz[4], fz[4], tmp[2], tmpscore=0;
#ifdef YAX_ENABLE
int16_t cb[2], fb[2];
#endif
#if 0
if (checksectorpointer_warn && (i<0 || i>=max(numwalls,newnumwalls)))
{
char buf[128];
Bsprintf(buf, "WARN: checksectorpointer called with i=%d but (new)numwalls=%d", i, max(numwalls,newnumwalls));
OSD_Printf("%s\n", buf);
printmessage16("%s", buf);
return 0;
}
#endif
x1 = wall[i].x;
y1 = wall[i].y;
x2 = (wall[wall[i].point2]).x;
y2 = (wall[wall[i].point2]).y;
k = wall[i].nextwall;
if (k >= 0) //Check for early exit
{
if (WALLS_ARE_CONSISTENT(k))
return 0;
wall[k].nextwall = wall[k].nextsector = -1;
}
if ((unsigned)wall[i].nextsector < (unsigned)numsectors && wall[i].nextwall < 0)
{
// if we have a nextsector but no nextwall, take this as a hint
// to search only the walls of that sector
startsec = wall[i].nextsector;
endsec = startsec+1;
}
else
{
startsec = 0;
endsec = numsectors;
}
wall[i].nextsector = wall[i].nextwall = -1;
if (chsecptr_onextwall && (k=chsecptr_onextwall[i])>=0 && wall[k].nextwall<0)
{
// old next wall found
if (WALLS_ARE_CONSISTENT(k))
{
j = sectorofwall(k);
wall[i].nextsector = j;
wall[i].nextwall = k;
wall[k].nextsector = sectnum;
wall[k].nextwall = i;
return 1;
}
}
for (j=startsec; j<endsec; j++)
{
if (j == sectnum)
continue;
YAX_SKIPSECTOR(j);
startwall = sector[j].wallptr;
endwall = startwall + sector[j].wallnum;
for (k=startwall; k<endwall; k++)
{
if (!WALLS_ARE_CONSISTENT(k))
continue;
// Don't create link if the other side is connected to another wall.
// The nextwall relation should be definitely one-to-one at all times!
if (wall[k].nextwall>=0 && wall[k].nextwall != i)
continue;
#ifdef YAX_ENABLE
yax_getbunches(sectnum, &cb[0], &fb[0]);
yax_getbunches(j, &cb[1], &fb[1]);
if ((cb[0]>=0 && cb[0]==cb[1]) || (fb[0]>=0 && fb[0]==fb[1]))
{
tmpscore = INT32_MAX;
}
else
#endif
{
getzsofslope(sectnum, x1,y1, &cz[0],&fz[0]);
getzsofslope(sectnum, x2,y2, &cz[1],&fz[1]);
getzsofslope(j, x1,y1, &cz[2],&fz[2]);
getzsofslope(j, x2,y2, &cz[3],&fz[3]);
tmp[0] = getscore(cz[0],fz[0], cz[2],fz[2]);
tmp[1] = getscore(cz[1],fz[1], cz[3],fz[3]);
if ((tmp[0]^tmp[1]) >= 0)
tmpscore = tmp[0]+tmp[1];
else
tmpscore = max(tmp[0], tmp[1]);
}
if (bestnextwall == -1 || tmpscore > bestwallscore)
{
bestwallscore = tmpscore;
bestnextwall = k;
bestnextsec = j;
}
numnewwalls++;
}
}
// sectnum -2 means dry run
if (bestnextwall >= 0 && sectnum!=-2)
#ifdef YAX_ENABLE
// for walls with TROR neighbors, be conservative in case if score <=0
// (meaning that no wall area is mutually visible) -- it could be that
// another sector is a better candidate later on
if ((yax_getnextwall(i, 0)<0 && yax_getnextwall(i, 1)<0) || bestwallscore>0)
#endif
{
// initprintf("w%d new nw=%d (score %d)\n", i, bestnextwall, bestwallscore)
wall[i].nextsector = bestnextsec;
wall[i].nextwall = bestnextwall;
wall[bestnextwall].nextsector = sectnum;
wall[bestnextwall].nextwall = i;
}
return numnewwalls;
}
#undef WALLS_ARE_CONSISTENT
#if defined(_MSC_VER) && !defined(NOASM)
//
// Microsoft C Inline Assembly Routines
//
static inline int32_t nsqrtasm(int32_t a)
{
_asm
{
push ebx
mov eax, a
test eax, 0xff000000
mov ebx, eax
jnz short over24
shr ebx, 12
mov cx, word ptr shlookup[ebx*2]
jmp short under24
over24:
shr ebx, 24
mov cx, word ptr shlookup[ebx*2+8192]
under24:
shr eax, cl
mov cl, ch
mov ax, word ptr sqrtable[eax*2]
shr eax, cl
pop ebx
}
}
static inline int32_t msqrtasm(int32_t c)
{
_asm
{
push ebx
mov ecx, c
mov eax, 0x40000000
mov ebx, 0x20000000
begit:
cmp ecx, eax
jl skip
sub ecx, eax
lea eax, [eax+ebx*4]
skip:
sub eax, ebx
shr eax, 1
shr ebx, 2
jnz begit
cmp ecx, eax
sbb eax, -1
shr eax, 1
pop ebx
}
}
//0x007ff000 is (11<<13), 0x3f800000 is (127<<23)
static inline int32_t krecipasm(int32_t a)
{
_asm
{
push ebx
mov eax, a
mov fpuasm, eax
fild dword ptr fpuasm
add eax, eax
fstp dword ptr fpuasm
sbb ebx, ebx
mov eax, fpuasm
mov ecx, eax
and eax, 0x007ff000
shr eax, 10
sub ecx, 0x3f800000
shr ecx, 23
mov eax, dword ptr reciptable[eax]
sar eax, cl
xor eax, ebx
pop ebx
}
}
static inline int32_t getclipmask(int32_t a, int32_t b, int32_t c, int32_t d)
{
_asm
{
push ebx
mov eax, a
mov ebx, b
mov ecx, c
mov edx, d
sar eax, 31
add ebx, ebx
adc eax, eax
add ecx, ecx
adc eax, eax
add edx, edx
adc eax, eax
mov ebx, eax
shl ebx, 4
or al, 0xf0
xor eax, ebx
pop ebx
}
}
static inline int32_t getkensmessagecrc(void *b)
{
_asm
{
push ebx
mov ebx, b
xor eax, eax
mov ecx, 32
beg:
mov edx, dword ptr [ebx+ecx*4-4]
ror edx, cl
adc eax, edx
bswap eax
loop short beg
pop ebx
}
}
#elif defined(__GNUC__) && defined(__i386__) && !defined(NOASM) // _MSC_VER
//
// GCC "Inline" Assembly Routines
//
#define nsqrtasm(a) \
({ int32_t __r, __a=(a); \
__asm__ __volatile__ ( \
"testl $0xff000000, %%eax\n\t" \
"movl %%eax, %%ebx\n\t" \
"jnz 0f\n\t" \
"shrl $12, %%ebx\n\t" \
"movw "ASMSYM("shlookup")"(,%%ebx,2), %%cx\n\t" \
"jmp 1f\n\t" \
"0:\n\t" \
"shrl $24, %%ebx\n\t" \
"movw ("ASMSYM("shlookup")"+8192)(,%%ebx,2), %%cx\n\t" \
"1:\n\t" \
"shrl %%cl, %%eax\n\t" \
"movb %%ch, %%cl\n\t" \
"movw "ASMSYM("sqrtable")"(,%%eax,2), %%ax\n\t" \
"shrl %%cl, %%eax" \
: "=a" (__r) : "a" (__a) : "ebx", "ecx", "cc"); \
__r; })
// edx is blown by this code somehow?!
#define msqrtasm(c) \
({ int32_t __r, __c=(c); \
__asm__ __volatile__ ( \
"movl $0x40000000, %%eax\n\t" \
"movl $0x20000000, %%ebx\n\t" \
"0:\n\t" \
"cmpl %%eax, %%ecx\n\t" \
"jl 1f\n\t" \
"subl %%eax, %%ecx\n\t" \
"leal (%%eax,%%ebx,4), %%eax\n\t" \
"1:\n\t" \
"subl %%ebx, %%eax\n\t" \
"shrl $1, %%eax\n\t" \
"shrl $2, %%ebx\n\t" \
"jnz 0b\n\t" \
"cmpl %%eax, %%ecx\n\t" \
"sbbl $-1, %%eax\n\t" \
"shrl $1, %%eax" \
: "=a" (__r) : "c" (__c) : "edx","ebx", "cc"); \
__r; })
#define krecipasm(a) \
({ int32_t __a=(a); \
__asm__ __volatile__ ( \
"movl %%eax, ("ASMSYM("fpuasm")"); fildl ("ASMSYM("fpuasm")"); " \
"addl %%eax, %%eax; fstps ("ASMSYM("fpuasm")"); sbbl %%ebx, %%ebx; " \
"movl ("ASMSYM("fpuasm")"), %%eax; movl %%eax, %%ecx; " \
"andl $0x007ff000, %%eax; shrl $10, %%eax; subl $0x3f800000, %%ecx; " \
"shrl $23, %%ecx; movl "ASMSYM("reciptable")"(%%eax), %%eax; " \
"sarl %%cl, %%eax; xorl %%ebx, %%eax" \
: "=a" (__a) : "a" (__a) : "ebx", "ecx", "memory", "cc"); \
__a; })
#define getclipmask(a,b,c,d) \
({ int32_t __a=(a), __b=(b), __c=(c), __d=(d); \
__asm__ __volatile__ ("sarl $31, %%eax; addl %%ebx, %%ebx; adcl %%eax, %%eax; " \
"addl %%ecx, %%ecx; adcl %%eax, %%eax; addl %%edx, %%edx; " \
"adcl %%eax, %%eax; movl %%eax, %%ebx; shl $4, %%ebx; " \
"orb $0xf0, %%al; xorl %%ebx, %%eax" \
: "=a" (__a), "=b" (__b), "=c" (__c), "=d" (__d) \
: "a" (__a), "b" (__b), "c" (__c), "d" (__d) : "cc"); \
__a; })
#define getkensmessagecrc(b) \
({ int32_t __a, __b=(b); \
__asm__ __volatile__ ( \
"xorl %%eax, %%eax\n\t" \
"movl $32, %%ecx\n\t" \
"0:\n\t" \
"movl -4(%%ebx,%%ecx,4), %%edx\n\t" \
"rorl %%cl, %%edx\n\t" \
"adcl %%edx, %%eax\n\t" \
"bswapl %%eax\n\t" \
"loop 0b" \
: "=a" (__a) : "b" (__b) : "ecx", "edx" \
__a; })
#else // __GNUC__ && __i386__
static inline uint32_t nsqrtasm(uint32_t a)
{
// JBF 20030901: This was a damn lot simpler to reverse engineer than
// msqrtasm was. Really, it was just like simplifying an algebra equation.
uint16_t c;
if (a & 0xff000000) // test eax, 0xff000000 / jnz short over24
{
c = shlookup[(a >> 24) + 4096]; // mov ebx, eax
// over24: shr ebx, 24
// mov cx, word ptr shlookup[ebx*2+8192]
}
else
{
c = shlookup[a >> 12]; // mov ebx, eax
// shr ebx, 12
// mov cx, word ptr shlookup[ebx*2]
// jmp short under24
}
a >>= c&0xff; // under24: shr eax, cl
a = (a&0xffff0000)|(sqrtable[a]); // mov ax, word ptr sqrtable[eax*2]
a >>= ((c&0xff00) >> 8); // mov cl, ch
// shr eax, cl
return a;
}
static inline int32_t msqrtasm(uint32_t c)
{
uint32_t a,b;
a = 0x40000000l; // mov eax, 0x40000000
b = 0x20000000l; // mov ebx, 0x20000000
do // begit:
{
if (c >= a) // cmp ecx, eax / jl skip
{
c -= a; // sub ecx, eax
a += b*4; // lea eax, [eax+ebx*4]
} // skip:
a -= b; // sub eax, ebx
a >>= 1; // shr eax, 1
b >>= 2; // shr ebx, 2
}
while (b); // jnz begit
if (c >= a) // cmp ecx, eax
a++; // sbb eax, -1
a >>= 1; // shr eax, 1
return a;
}
static inline int32_t krecipasm(int32_t i)
{
// Ken did this
float f = (float)i; i = *(int32_t *)&f;
return((reciptable[(i>>12)&2047]>>(((i-0x3f800000)>>23)&31))^(i>>31));
}
static inline int32_t getclipmask(int32_t a, int32_t b, int32_t c, int32_t d)
{
// Ken did this
d = ((a<0)*8) + ((b<0)*4) + ((c<0)*2) + (d<0);
return(((d<<4)^0xf0)|d);
}
inline int32_t getkensmessagecrc(int32_t b)
{
UNREFERENCED_PARAMETER(b);
return 0x56c764d4l;
}
#endif
int32_t xb1[MAXWALLSB]; // Polymost uses this as a temp array
static int32_t yb1[MAXWALLSB], xb2[MAXWALLSB], yb2[MAXWALLSB];
int32_t rx1[MAXWALLSB], ry1[MAXWALLSB];
static int32_t rx2[MAXWALLSB], ry2[MAXWALLSB];
int16_t p2[MAXWALLSB], thesector[MAXWALLSB];
int16_t thewall[MAXWALLSB];
int16_t bunchfirst[MAXWALLSB], bunchlast[MAXWALLSB];
static int32_t smostcnt;
static int16_t smost[MAXYSAVES];
static int32_t smoststart[MAXWALLSB];
static char smostwalltype[MAXWALLSB];
static int32_t smostwall[MAXWALLSB], smostwallcnt = -1;
int16_t maskwall[MAXWALLSB], maskwallcnt;
static int32_t spritesx[MAXSPRITESONSCREEN];
static int32_t spritesy[MAXSPRITESONSCREEN+1];
static int32_t spritesz[MAXSPRITESONSCREEN];
spritetype *tspriteptr[MAXSPRITESONSCREEN + 1];
static int16_t umost[MAXXDIM], dmost[MAXXDIM];
static int16_t bakumost[MAXXDIM], bakdmost[MAXXDIM];
static int16_t uplc[MAXXDIM], dplc[MAXXDIM];
static int16_t uwall[MAXXDIM], dwall[MAXXDIM];
static int32_t swplc[MAXXDIM], lplc[MAXXDIM];
static int32_t swall[MAXXDIM], lwall[MAXXDIM+4];
int32_t xdimen = -1, xdimenrecip, halfxdimen, xdimenscale, xdimscale;
int32_t ydimen;
static int32_t wx1, wy1, wx2, wy2;
intptr_t /*viewoffset,*/ frameoffset;
static int32_t nrx1[8], nry1[8], nrx2[8], nry2[8]; // JBF 20031206: Thanks Ken
static int32_t rxi[8], ryi[8], rzi[8], rxi2[8], ryi2[8], rzi2[8];
static int32_t xsi[8], ysi[8], horizycent;
static intptr_t *horizlookup=0, *horizlookup2=0;
int32_t globalposx, globalposy, globalposz, globalhoriz;
int16_t globalang, globalcursectnum;
int32_t globalpal, cosglobalang, singlobalang;
int32_t cosviewingrangeglobalang, sinviewingrangeglobalang;
static char *globalpalwritten;
static int32_t globaluclip, globaldclip, globvis;
int32_t globalvisibility;
static int32_t globalhisibility, globalpisibility, globalcisibility;
//char globparaceilclip, globparaflorclip;
int32_t xyaspect;
static int32_t viewingrangerecip;
intptr_t asm1, asm2, asm3, asm4, palookupoffse[4];
int32_t vplce[4], vince[4], bufplce[4];
static char globalxshift, globalyshift;
static int32_t globalxpanning, globalypanning;
int32_t globalshade, globalorientation;
int16_t globalpicnum;
static int16_t globalshiftval;
static int32_t globalzd, globalyscale;
static int32_t globalxspan, globalyspan, globalispow2=1; // true if texture has power-of-two x and y size
static intptr_t globalbufplc;
int32_t globalx1, globaly2, globalx3, globaly3;
static int32_t globaly1, globalx2, globalzx;
static int32_t globalx, globaly, globalz;
int16_t sectorborder[256], sectorbordercnt;
static char tablesloaded = 0;
int32_t ydim16, qsetmode = 0;
int32_t startposx, startposy, startposz;
int16_t startang, startsectnum;
int16_t pointhighlight=-1, linehighlight=-1, highlightcnt=0;
#ifndef OBSOLETE_RENDMODES
static int32_t lastx[MAXYDIM];
static char *transluc;
#else
int32_t lastx[MAXYDIM];
char *transluc;
#endif
static char paletteloaded = 0;
int32_t halfxdim16, midydim16;
#define FASTPALGRIDSIZ 8
static int32_t rdist[129], gdist[129], bdist[129];
static char colhere[((FASTPALGRIDSIZ+2)*(FASTPALGRIDSIZ+2)*(FASTPALGRIDSIZ+2))>>3];
static char colhead[(FASTPALGRIDSIZ+2)*(FASTPALGRIDSIZ+2)*(FASTPALGRIDSIZ+2)];
static int32_t colnext[256];
static char coldist[8] = {0,1,2,3,4,3,2,1};
static int32_t colscan[27];
static int16_t clipnum, hitwalls[4];
const int32_t hitscangoalx = (1<<29)-1, hitscangoaly = (1<<29)-1;
#ifdef USE_OPENGL
int32_t hitallsprites = 0;
#endif
typedef struct { int32_t x1, y1, x2, y2; } linetype;
static linetype clipit[MAXCLIPNUM];
static int16_t clipsectorlist[MAXCLIPNUM], clipsectnum, origclipsectorlist[MAXCLIPNUM], origclipsectnum;
static int16_t clipspritelist[MAXCLIPNUM], clipspritenum; // sector-like sprite clipping
static int16_t clipobjectval[MAXCLIPNUM];
typedef struct
{
int32_t sx, sy, z;
int16_t a, picnum;
int8_t dashade;
char dapalnum, dastat, pagesleft;
int32_t cx1, cy1, cx2, cy2;
int32_t uniqid; //JF extension
} permfifotype;
static permfifotype permfifo[MAXPERMS];
static int32_t permhead = 0, permtail = 0;
int16_t numscans, numbunches;
static int16_t numhits;
int16_t capturecount = 0;
char vgapal16[4*256] =
{
00,00,00,00, 42,00,00,00, 00,42,00,00, 42,42,00,00, 00,00,42,00,
42,00,42,00, 00,21,42,00, 42,42,42,00, 21,21,21,00, 63,21,21,00,
21,63,21,00, 63,63,21,00, 21,21,63,00, 63,21,63,00, 21,63,63,00,
63,63,63,00
};
int16_t searchit;
int32_t searchx = -1, searchy; //search input
int16_t searchsector, searchwall, searchstat; //search output
// SEARCHBOTTOMWALL:
// When aiming at a the bottom part of a 2-sided wall whose bottom part
// is swapped (.cstat&2), searchbottomwall equals that wall's .nextwall. In all
// other cases (when aiming at a wall), searchbottomwall equals searchwall.
//
// SEARCHISBOTTOM:
// When aiming at a 2-sided wall, 1 if aiming at the bottom part, 0 else
int16_t searchbottomwall, searchisbottom;
double msens = 1.0;
static char artfilename[20];
static int32_t artfil = -1, artfilnum, artfilplc;
char inpreparemirror = 0;
static int32_t mirrorsx1, mirrorsy1, mirrorsx2, mirrorsy2;
static int32_t setviewcnt = 0; // interface layers use this now
static int32_t bakframeplace[4], bakxsiz[4], bakysiz[4];
static int32_t bakwindowx1[4], bakwindowy1[4];
static int32_t bakwindowx2[4], bakwindowy2[4];
#ifdef USE_OPENGL
static int32_t bakrendmode,baktile;
#endif
int32_t totalclocklock;
char apptitle[256] = "Build Engine";
static uint8_t **basepaltableptr;
uint8_t basepalcount;
uint8_t curbasepal;
static uint32_t g_lastpalettesum = 0;
palette_t curpalette[256]; // the current palette, unadjusted for brightness or tint
palette_t curpalettefaded[256]; // the current palette, adjusted for brightness and tint (ie. what gets sent to the card)
palette_t palfadergb = { 0,0,0,0 };
char palfadedelta = 0;
//
// Internal Engine Functions
//
//int32_t cacheresets = 0,cacheinvalidates = 0;
//
// getpalookup (internal)
//
static inline int32_t getpalookup(int32_t davis, int32_t dashade)
{
return(min(max(dashade+(davis>>8),0),numpalookups-1));
}
static void setpalettefade_calc(uint8_t offset);
void fade_screen_black(int32_t moreopaquep)
{
if (getrendermode() >= 3)
{
// we have a ~1 px horizontal line if we don't shift y by -1,
// might need a fix in rotatesprite!
rotatesprite_fs(0, -(1<<16), 65536<<3, 0, 0,0,4,10+16+1+((!moreopaquep)*32)+1024); // tile 0: 64x32
}
else
{
int32_t i;
const int32_t shiftamnt = ((!!moreopaquep)*8);
assert(!offscreenrendering);
begindrawing();
for (i=0; i<xdim*ydim; i++)
((uint8_t *)frameplace)[i] = transluc[(((uint8_t *)frameplace)[i])<<shiftamnt];
enddrawing();
}
}
// returns: 0=continue sprite collecting;
// 1=break out of sprite collecting;
int32_t engine_addtsprite(int16_t z, int16_t sectnum)
{
spritetype *spr = &sprite[z];
#ifdef YAX_ENABLE
int16_t cb, fb, *sortcnt;
int32_t spheight, spzofs;
if (g_nodraw==0)
{
if (numyaxbunches==0)
{
#endif
if (spritesortcnt >= MAXSPRITESONSCREEN)
return 1;
copybufbyte(spr,&tsprite[spritesortcnt],sizeof(spritetype));
spriteext[z].tspr = (spritetype *)&tsprite[spritesortcnt];
tsprite[spritesortcnt++].owner = z;
#ifdef YAX_ENABLE
}
}
else
#ifdef YAX_ENABLE
if (yax_nomaskpass==0)
#endif
{
sortcnt = &yax_spritesortcnt[yax_globallev];
if (*sortcnt >= MAXSPRITESONSCREEN)
return 1;
yax_tsprite[yax_globallev][*sortcnt] = z;
if (yax_globalbunch >= 0)
{
yax_tsprite[yax_globallev][*sortcnt] |= (MAXSPRITES|(MAXSPRITES<<1));
yax_tsprfrombunch[yax_globallev][*sortcnt] = yax_globalbunch;
}
(*sortcnt)++;
// now check whether the tsprite needs duplication into another level
if ((spr->cstat&48)==32)
return 0;
yax_getbunches(sectnum, &cb, &fb);
if (cb < 0 && fb < 0)
return 0;
spriteheightofs(z, &spheight, &spzofs, 1);
// TODO: get*zofslope?
if (cb>=0 && spr->z+spzofs-spheight < sector[sectnum].ceilingz)
{
sortcnt = &yax_spritesortcnt[yax_globallev-1];
if (*sortcnt < MAXSPRITESONSCREEN)
{
yax_tsprite[yax_globallev-1][*sortcnt] = z|MAXSPRITES;
(*sortcnt)++;
}
}
if (fb>=0 && spr->z+spzofs > sector[sectnum].floorz)
{
sortcnt = &yax_spritesortcnt[yax_globallev+1];
if (*sortcnt < MAXSPRITESONSCREEN)
{
yax_tsprite[yax_globallev+1][*sortcnt] = z|(MAXSPRITES<<1);
(*sortcnt)++;
}
}
}
#endif
return 0;
}
//
// scansector (internal)
//
static void scansector(int16_t sectnum)
{
walltype *wal, *wal2;
spritetype *spr;
int32_t xs, ys, x1, y1, x2, y2, xp1, yp1, xp2=0, yp2=0, tempint;
int16_t z, zz, startwall, endwall, numscansbefore, scanfirst, bunchfrst;
int16_t nextsectnum;
if (sectnum < 0) return;
// if (automapping) show2dsector[sectnum>>3] |= pow2char[sectnum&7];
sectorborder[0] = sectnum, sectorbordercnt = 1;
do
{
sectnum = sectorborder[--sectorbordercnt];
#ifdef YAX_ENABLE
if (scansector_collectsprites)
#endif
for (z=headspritesect[sectnum]; z>=0; z=nextspritesect[z])
{
spr = &sprite[z];
if ((((spr->cstat&0x8000) == 0) || (showinvisibility)) &&
(spr->xrepeat > 0) && (spr->yrepeat > 0))
{
xs = spr->x-globalposx; ys = spr->y-globalposy;
if ((spr->cstat&48) || (xs*cosglobalang+ys*singlobalang > 0))
if ((spr->cstat&(64+48))!=(64+16) || dmulscale6(sintable[(spr->ang+512)&2047],-xs, sintable[spr->ang&2047],-ys) > 0)
if (engine_addtsprite(z, sectnum))
break;
}
}
gotsector[sectnum>>3] |= pow2char[sectnum&7];
bunchfrst = numbunches;
numscansbefore = numscans;
startwall = sector[sectnum].wallptr;
endwall = startwall + sector[sectnum].wallnum;
scanfirst = numscans;
for (z=startwall,wal=&wall[z]; z<endwall; z++,wal++)
{
nextsectnum = wal->nextsector;
wal2 = &wall[wal->point2];
x1 = wal->x-globalposx; y1 = wal->y-globalposy;
x2 = wal2->x-globalposx; y2 = wal2->y-globalposy;
if ((nextsectnum >= 0) && ((wal->cstat&32) == 0))
#ifdef YAX_ENABLE
if (yax_nomaskpass==0 || !yax_isislandwall(z, !yax_globalcf) || (yax_nomaskdidit=1, 0))
#endif
if ((gotsector[nextsectnum>>3]&pow2char[nextsectnum&7]) == 0)
{
tempint = x1*y2-x2*y1;
if (((unsigned)tempint+262144) < 524288) // BXY_MAX?
if (mulscale5(tempint,tempint) <= (x2-x1)*(x2-x1)+(y2-y1)*(y2-y1))
sectorborder[sectorbordercnt++] = nextsectnum;
}
if ((z == startwall) || (wall[z-1].point2 != z))
{
xp1 = dmulscale6(y1,cosglobalang,-x1,singlobalang);
yp1 = dmulscale6(x1,cosviewingrangeglobalang,y1,sinviewingrangeglobalang);
}
else
{
xp1 = xp2;
yp1 = yp2;
}
xp2 = dmulscale6(y2,cosglobalang,-x2,singlobalang);
yp2 = dmulscale6(x2,cosviewingrangeglobalang,y2,sinviewingrangeglobalang);
if ((yp1 < 256) && (yp2 < 256)) goto skipitaddwall;
//If wall's NOT facing you
if (dmulscale32(xp1,yp2,-xp2,yp1) >= 0) goto skipitaddwall;
if (xp1 >= -yp1)
{
if ((xp1 > yp1) || (yp1 == 0)) goto skipitaddwall;
xb1[numscans] = halfxdimen + scale(xp1,halfxdimen,yp1);
if (xp1 >= 0) xb1[numscans]++; //Fix for SIGNED divide
if (xb1[numscans] >= xdimen) xb1[numscans] = xdimen-1;
yb1[numscans] = yp1;
}
else
{
if (xp2 < -yp2) goto skipitaddwall;
xb1[numscans] = 0;
tempint = yp1-yp2+xp1-xp2;
if (tempint == 0) goto skipitaddwall;
yb1[numscans] = yp1 + scale(yp2-yp1,xp1+yp1,tempint);
}
if (yb1[numscans] < 256) goto skipitaddwall;
if (xp2 <= yp2)
{
if ((xp2 < -yp2) || (yp2 == 0)) goto skipitaddwall;
xb2[numscans] = halfxdimen + scale(xp2,halfxdimen,yp2) - 1;
if (xp2 >= 0) xb2[numscans]++; //Fix for SIGNED divide
if (xb2[numscans] >= xdimen) xb2[numscans] = xdimen-1;
yb2[numscans] = yp2;
}
else
{
if (xp1 > yp1) goto skipitaddwall;
xb2[numscans] = xdimen-1;
tempint = xp2-xp1+yp1-yp2;
if (tempint == 0) goto skipitaddwall;
yb2[numscans] = yp1 + scale(yp2-yp1,yp1-xp1,tempint);
}
if ((yb2[numscans] < 256) || (xb1[numscans] > xb2[numscans])) goto skipitaddwall;
//Made it all the way!
thesector[numscans] = sectnum; thewall[numscans] = z;
rx1[numscans] = xp1; ry1[numscans] = yp1;
rx2[numscans] = xp2; ry2[numscans] = yp2;
p2[numscans] = numscans+1;
numscans++;
skipitaddwall:
if ((wall[z].point2 < z) && (scanfirst < numscans))
p2[numscans-1] = scanfirst, scanfirst = numscans;
}
for (z=numscansbefore; z<numscans; z++)
if ((wall[thewall[z]].point2 != thewall[p2[z]]) || (xb2[z] >= xb1[p2[z]]))
{
bunchfirst[numbunches++] = p2[z], p2[z] = -1;
#ifdef YAX_ENABLE
if (scansector_retfast)
return;
#endif
}
for (z=bunchfrst; z<numbunches; z++)
{
for (zz=bunchfirst[z]; p2[zz]>=0; zz=p2[zz]);
bunchlast[z] = zz;
}
}
while (sectorbordercnt > 0);
}
//
// maskwallscan (internal)
//
static void maskwallscan(int32_t x1, int32_t x2, int16_t *uwal, int16_t *dwal, int32_t *swal, int32_t *lwal)
{
int32_t x,/* startx,*/ xnice, ynice;
intptr_t startx, p, fpalookup;
int32_t y1ve[4], y2ve[4], /* p,*/ tsizx, tsizy;
#ifndef ENGINE_USING_A_C
char bad;
int32_t i, u4, d4, dax, z;
#endif
tsizx = tilesizx[globalpicnum];
tsizy = tilesizy[globalpicnum];
setgotpic(globalpicnum);
if ((tsizx <= 0) || (tsizy <= 0)) return;
if ((uwal[x1] > ydimen) && (uwal[x2] > ydimen)) return;
if ((dwal[x1] < 0) && (dwal[x2] < 0)) return;
if (waloff[globalpicnum] == 0) loadtile(globalpicnum);
startx = x1;
xnice = (pow2long[picsiz[globalpicnum]&15] == tsizx);
if (xnice) tsizx = (tsizx-1);
ynice = (pow2long[picsiz[globalpicnum]>>4] == tsizy);
if (ynice) tsizy = (picsiz[globalpicnum]>>4);
if (palookup[globalpal] == NULL)
globalpal = 0;
fpalookup = FP_OFF(palookup[globalpal]);
setupmvlineasm(globalshiftval);
#ifndef ENGINE_USING_A_C
x = startx;
while ((startumost[x+windowx1] > startdmost[x+windowx1]) && (x <= x2)) x++;
p = x+frameoffset;
for (; (x<=x2)&&(p&3); x++,p++)
{
y1ve[0] = max(uwal[x],startumost[x+windowx1]-windowy1);
y2ve[0] = min(dwal[x],startdmost[x+windowx1]-windowy1);
if (y2ve[0] <= y1ve[0]) continue;
palookupoffse[0] = fpalookup+(getpalookup((int32_t)mulscale16(swal[x],globvis),globalshade)<<8);
bufplce[0] = lwal[x] + globalxpanning;
if (bufplce[0] >= tsizx) { if (xnice == 0) bufplce[0] %= tsizx; else bufplce[0] &= tsizx; }
if (ynice == 0) bufplce[0] *= tsizy; else bufplce[0] <<= tsizy;
vince[0] = swal[x]*globalyscale;
vplce[0] = globalzd + vince[0]*(y1ve[0]-globalhoriz+1);
mvlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0]-1,vplce[0],bufplce[0]+waloff[globalpicnum],p+ylookup[y1ve[0]]);
}
for (; x<=x2-3; x+=4,p+=4)
{
bad = 0;
for (z=3,dax=x+3; z>=0; z--,dax--)
{
y1ve[z] = max(uwal[dax],startumost[dax+windowx1]-windowy1);
y2ve[z] = min(dwal[dax],startdmost[dax+windowx1]-windowy1)-1;
if (y2ve[z] < y1ve[z]) { bad += pow2char[z]; continue; }
i = lwal[dax] + globalxpanning;
if (i >= tsizx) { if (xnice == 0) i %= tsizx; else i &= tsizx; }
if (ynice == 0) i *= tsizy; else i <<= tsizy;
bufplce[z] = waloff[globalpicnum]+i;
vince[z] = swal[dax]*globalyscale;
vplce[z] = globalzd + vince[z]*(y1ve[z]-globalhoriz+1);
}
if (bad == 15) continue;
palookupoffse[0] = fpalookup+(getpalookup((int32_t)mulscale16(swal[x],globvis),globalshade)<<8);
palookupoffse[3] = fpalookup+(getpalookup((int32_t)mulscale16(swal[x+3],globvis),globalshade)<<8);
if ((palookupoffse[0] == palookupoffse[3]) && ((bad&0x9) == 0))
{
palookupoffse[1] = palookupoffse[0];
palookupoffse[2] = palookupoffse[0];
}
else
{
palookupoffse[1] = fpalookup+(getpalookup((int32_t)mulscale16(swal[x+1],globvis),globalshade)<<8);
palookupoffse[2] = fpalookup+(getpalookup((int32_t)mulscale16(swal[x+2],globvis),globalshade)<<8);
}
u4 = max(max(y1ve[0],y1ve[1]),max(y1ve[2],y1ve[3]));
d4 = min(min(y2ve[0],y2ve[1]),min(y2ve[2],y2ve[3]));
if ((bad > 0) || (u4 >= d4))
{
if (!(bad&1)) mvlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0],vplce[0],bufplce[0],ylookup[y1ve[0]]+p+0);
if (!(bad&2)) mvlineasm1(vince[1],palookupoffse[1],y2ve[1]-y1ve[1],vplce[1],bufplce[1],ylookup[y1ve[1]]+p+1);
if (!(bad&4)) mvlineasm1(vince[2],palookupoffse[2],y2ve[2]-y1ve[2],vplce[2],bufplce[2],ylookup[y1ve[2]]+p+2);
if (!(bad&8)) mvlineasm1(vince[3],palookupoffse[3],y2ve[3]-y1ve[3],vplce[3],bufplce[3],ylookup[y1ve[3]]+p+3);
continue;
}
if (u4 > y1ve[0]) vplce[0] = mvlineasm1(vince[0],palookupoffse[0],u4-y1ve[0]-1,vplce[0],bufplce[0],ylookup[y1ve[0]]+p+0);
if (u4 > y1ve[1]) vplce[1] = mvlineasm1(vince[1],palookupoffse[1],u4-y1ve[1]-1,vplce[1],bufplce[1],ylookup[y1ve[1]]+p+1);
if (u4 > y1ve[2]) vplce[2] = mvlineasm1(vince[2],palookupoffse[2],u4-y1ve[2]-1,vplce[2],bufplce[2],ylookup[y1ve[2]]+p+2);
if (u4 > y1ve[3]) vplce[3] = mvlineasm1(vince[3],palookupoffse[3],u4-y1ve[3]-1,vplce[3],bufplce[3],ylookup[y1ve[3]]+p+3);
if (d4 >= u4) mvlineasm4(d4-u4+1,ylookup[u4]+p);
i = p+ylookup[d4+1];
if (y2ve[0] > d4) mvlineasm1(vince[0],palookupoffse[0],y2ve[0]-d4-1,vplce[0],bufplce[0],i+0);
if (y2ve[1] > d4) mvlineasm1(vince[1],palookupoffse[1],y2ve[1]-d4-1,vplce[1],bufplce[1],i+1);
if (y2ve[2] > d4) mvlineasm1(vince[2],palookupoffse[2],y2ve[2]-d4-1,vplce[2],bufplce[2],i+2);
if (y2ve[3] > d4) mvlineasm1(vince[3],palookupoffse[3],y2ve[3]-d4-1,vplce[3],bufplce[3],i+3);
}
for (; x<=x2; x++,p++)
{
y1ve[0] = max(uwal[x],startumost[x+windowx1]-windowy1);
y2ve[0] = min(dwal[x],startdmost[x+windowx1]-windowy1);
if (y2ve[0] <= y1ve[0]) continue;
palookupoffse[0] = fpalookup+(getpalookup((int32_t)mulscale16(swal[x],globvis),globalshade)<<8);
bufplce[0] = lwal[x] + globalxpanning;
if (bufplce[0] >= tsizx) { if (xnice == 0) bufplce[0] %= tsizx; else bufplce[0] &= tsizx; }
if (ynice == 0) bufplce[0] *= tsizy; else bufplce[0] <<= tsizy;
vince[0] = swal[x]*globalyscale;
vplce[0] = globalzd + vince[0]*(y1ve[0]-globalhoriz+1);
mvlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0]-1,vplce[0],bufplce[0]+waloff[globalpicnum],p+ylookup[y1ve[0]]);
}
#else // ENGINE_USING_A_C
p = startx+frameoffset;
for (x=startx; x<=x2; x++,p++)
{
y1ve[0] = max(uwal[x],startumost[x+windowx1]-windowy1);
y2ve[0] = min(dwal[x],startdmost[x+windowx1]-windowy1);
if (y2ve[0] <= y1ve[0]) continue;
palookupoffse[0] = fpalookup+(getpalookup((int32_t)mulscale16(swal[x],globvis),globalshade)<<8);
bufplce[0] = lwal[x] + globalxpanning;
if (bufplce[0] >= tsizx) { if (xnice == 0) bufplce[0] %= tsizx; else bufplce[0] &= tsizx; }
if (ynice == 0) bufplce[0] *= tsizy; else bufplce[0] <<= tsizy;
vince[0] = swal[x]*globalyscale;
vplce[0] = globalzd + vince[0]*(y1ve[0]-globalhoriz+1);
mvlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0]-1,vplce[0],bufplce[0]+waloff[globalpicnum],p+ylookup[y1ve[0]]);
}
#endif
faketimerhandler();
}
//
// wallfront (internal)
//
int32_t wallfront(int32_t l1, int32_t l2)
{
walltype *wal;
int32_t x11, y11, x21, y21, x12, y12, x22, y22, dx, dy, t1, t2;
wal = &wall[thewall[l1]]; x11 = wal->x; y11 = wal->y;
wal = &wall[wal->point2]; x21 = wal->x; y21 = wal->y;
wal = &wall[thewall[l2]]; x12 = wal->x; y12 = wal->y;
wal = &wall[wal->point2]; x22 = wal->x; y22 = wal->y;
dx = x21-x11; dy = y21-y11;
t1 = dmulscale2(x12-x11,dy,-dx,y12-y11); //p1(l2) vs. l1
t2 = dmulscale2(x22-x11,dy,-dx,y22-y11); //p2(l2) vs. l1
if (t1 == 0) { t1 = t2; if (t1 == 0) return(-1); }
if (t2 == 0) t2 = t1;
if ((t1^t2) >= 0)
{
t2 = dmulscale2(globalposx-x11,dy,-dx,globalposy-y11); //pos vs. l1
return((t2^t1) >= 0);
}
dx = x22-x12; dy = y22-y12;
t1 = dmulscale2(x11-x12,dy,-dx,y11-y12); //p1(l1) vs. l2
t2 = dmulscale2(x21-x12,dy,-dx,y21-y12); //p2(l1) vs. l2
if (t1 == 0) { t1 = t2; if (t1 == 0) return(-1); }
if (t2 == 0) t2 = t1;
if ((t1^t2) >= 0)
{
t2 = dmulscale2(globalposx-x12,dy,-dx,globalposy-y12); //pos vs. l2
return((t2^t1) < 0);
}
return(-2);
}
//
// spritewallfront (internal)
//
static inline int32_t spritewallfront(spritetype *s, int32_t w)
{
walltype *wal;
int32_t x1, y1;
wal = &wall[w]; x1 = wal->x; y1 = wal->y;
wal = &wall[wal->point2];
return (dmulscale32(wal->x-x1,s->y-y1,-(s->x-x1),wal->y-y1) >= 0);
}
//
// spritebehindwall(internal)
//
#if 0
static int32_t spriteobstructswall(spritetype *s, int32_t w)
{
walltype *wal;
int32_t x, y;
int32_t x1, y1;
int32_t x2, y2;
double a1, b1, c1;
double a2, b2, c2;
double d1, d2;
// wall line equation
wal = &wall[w]; x1 = wal->x - globalposx; y1 = wal->y - globalposy;
wal = &wall[wal->point2]; x2 = wal->x - globalposx; y2 = wal->y - globalposy;
if ((x2 - x1) != 0)
a1 = (float)(y2 - y1)/(x2 - x1);
else
a1 = 1e+37; // not infinite, but almost ;)
b1 = -1;
c1 = (y1 - (a1 * x1));
// player to sprite line equation
if ((s->x - globalposx) != 0)
a2 = (float)(s->y - globalposy)/(s->x - globalposx);
else
a2 = 1e+37;
b2 = -1;
c2 = 0;
// intersection point
d1 = (float)(1) / (a1*b2 - a2*b1);
x = ((b1*c2 - b2*c1) * d1);
y = ((a2*c1 - a1*c2) * d1);
// distance between the sprite and the player
a1 = s->x - globalposx;
b1 = s->y - globalposy;
d1 = (a1 * a1 + b1 * b1);
// distance between the intersection point and the player
d2 = (x * x + y * y);
// check if the sprite obstructs the wall
if ((d1 < d2) && (min(x1, x2) <= x) && (x <= max(x1, x2)) && (min(y1, y2) <= y) && (y <= max(y1, y2)))
return (1);
else
return (0);
}
#endif
//
// bunchfront (internal)
//
static inline int32_t bunchfront(int32_t b1, int32_t b2)
{
int32_t x1b1, x2b1, x1b2, x2b2, b1f, b2f, i;
b1f = bunchfirst[b1]; x1b1 = xb1[b1f]; x2b2 = xb2[bunchlast[b2]]+1;
if (x1b1 >= x2b2) return(-1);
b2f = bunchfirst[b2]; x1b2 = xb1[b2f]; x2b1 = xb2[bunchlast[b1]]+1;
if (x1b2 >= x2b1) return(-1);
if (x1b1 >= x1b2)
{
for (i=b2f; xb2[i]<x1b1; i=p2[i]);
return(wallfront(b1f,i));
}
for (i=b1f; xb2[i]<x1b2; i=p2[i]);
return(wallfront(i,b2f));
}
//
// hline (internal)
//
static inline void hline(int32_t xr, int32_t yp)
{
int32_t xl, r, s;
xl = lastx[yp]; if (xl > xr) return;
r = horizlookup2[yp-globalhoriz+horizycent];
asm1 = globalx1*r;
asm2 = globaly2*r;
s = ((int32_t)getpalookup((int32_t)mulscale16(r,globvis),globalshade)<<8);
hlineasm4(xr-xl,0,s,globalx2*r+globalypanning,globaly1*r+globalxpanning,
ylookup[yp]+xr+frameoffset);
}
//
// slowhline (internal)
//
static inline void slowhline(int32_t xr, int32_t yp)
{
int32_t xl, r;
xl = lastx[yp]; if (xl > xr) return;
r = horizlookup2[yp-globalhoriz+horizycent];
asm1 = globalx1*r;
asm2 = globaly2*r;
asm3 = (intptr_t)globalpalwritten + ((intptr_t)getpalookup((int32_t)mulscale16(r,globvis),globalshade)<<8);
if (!(globalorientation&256))
{
mhline(globalbufplc,globaly1*r+globalxpanning-asm1*(xr-xl),(xr-xl)<<16,0L,
globalx2*r+globalypanning-asm2*(xr-xl),ylookup[yp]+xl+frameoffset);
return;
}
thline(globalbufplc,globaly1*r+globalxpanning-asm1*(xr-xl),(xr-xl)<<16,0L,
globalx2*r+globalypanning-asm2*(xr-xl),ylookup[yp]+xl+frameoffset);
}
//
// prepwall (internal)
//
static void prepwall(int32_t z, walltype *wal)
{
int32_t i, l=0, ol=0, splc, sinc, x, topinc, top, botinc, bot, walxrepeat;
walxrepeat = (wal->xrepeat<<3);
//lwall calculation
i = xb1[z]-halfxdimen;
topinc = -(ry1[z]>>2);
botinc = ((ry2[z]-ry1[z])>>8);
top = mulscale5(rx1[z],xdimen)+mulscale2(topinc,i);
bot = mulscale11(rx1[z]-rx2[z],xdimen)+mulscale2(botinc,i);
splc = mulscale19(ry1[z],xdimscale);
sinc = mulscale16(ry2[z]-ry1[z],xdimscale);
x = xb1[z];
if (bot != 0)
{
l = divscale12(top,bot);
swall[x] = mulscale21(l,sinc)+splc;
l *= walxrepeat;
lwall[x] = (l>>18);
}
while (x+4 <= xb2[z])
{
top += topinc; bot += botinc;
if (bot != 0)
{
ol = l; l = divscale12(top,bot);
swall[x+4] = mulscale21(l,sinc)+splc;
l *= walxrepeat;
lwall[x+4] = (l>>18);
}
i = ((ol+l)>>1);
lwall[x+2] = (i>>18);
lwall[x+1] = ((ol+i)>>19);
lwall[x+3] = ((l+i)>>19);
swall[x+2] = ((swall[x]+swall[x+4])>>1);
swall[x+1] = ((swall[x]+swall[x+2])>>1);
swall[x+3] = ((swall[x+4]+swall[x+2])>>1);
x += 4;
}
if (x+2 <= xb2[z])
{
top += (topinc>>1); bot += (botinc>>1);
if (bot != 0)
{
ol = l; l = divscale12(top,bot);
swall[x+2] = mulscale21(l,sinc)+splc;
l *= walxrepeat;
lwall[x+2] = (l>>18);
}
lwall[x+1] = ((l+ol)>>19);
swall[x+1] = ((swall[x]+swall[x+2])>>1);
x += 2;
}
if (x+1 <= xb2[z])
{
bot += (botinc>>2);
if (bot != 0)
{
l = divscale12(top+(topinc>>2),bot);
swall[x+1] = mulscale21(l,sinc)+splc;
lwall[x+1] = mulscale18(l,walxrepeat);
}
}
if (lwall[xb1[z]] < 0) lwall[xb1[z]] = 0;
if ((lwall[xb2[z]] >= walxrepeat) && (walxrepeat)) lwall[xb2[z]] = walxrepeat-1;
if (wal->cstat&8)
{
walxrepeat--;
for (x=xb1[z]; x<=xb2[z]; x++) lwall[x] = walxrepeat-lwall[x];
}
}
//
// animateoffs (internal)
//
inline int32_t animateoffs(int16_t tilenum, int16_t fakevar)
{
int32_t i, k, offs;
UNREFERENCED_PARAMETER(fakevar);
offs = 0;
i = (totalclocklock>>((picanm[tilenum]>>24)&15));
if ((picanm[tilenum]&63) > 0)
{
switch (picanm[tilenum]&192)
{
case 64:
k = (i%((picanm[tilenum]&63)<<1));
if (k < (picanm[tilenum]&63))
offs = k;
else
offs = (((picanm[tilenum]&63)<<1)-k);
break;
case 128:
offs = (i%((picanm[tilenum]&63)+1));
break;
case 192:
offs = -(i%((picanm[tilenum]&63)+1));
}
}
return(offs);
}
//
// owallmost (internal)
//
static int32_t owallmost(int16_t *mostbuf, int32_t w, int32_t z)
{
int32_t bad, inty, xcross, y, yinc;
int32_t s1, s2, s3, s4, ix1, ix2, iy1, iy2, t;
int32_t i, tmp;
z <<= 7;
s1 = mulscale20(globaluclip,yb1[w]); s2 = mulscale20(globaluclip,yb2[w]);
s3 = mulscale20(globaldclip,yb1[w]); s4 = mulscale20(globaldclip,yb2[w]);
bad = (z<s1)+((z<s2)<<1)+((z>s3)<<2)+((z>s4)<<3);
ix1 = xb1[w]; iy1 = yb1[w];
ix2 = xb2[w]; iy2 = yb2[w];
if ((bad&3) == 3)
{
//clearbufbyte(&mostbuf[ix1],(ix2-ix1+1)*sizeof(mostbuf[0]),0L);
for (i=ix1; i<=ix2; i++) mostbuf[i] = 0;
return(bad);
}
if ((bad&12) == 12)
{
//clearbufbyte(&mostbuf[ix1],(ix2-ix1+1)*sizeof(mostbuf[0]),ydimen+(ydimen<<16));
for (i=ix1; i<=ix2; i++) mostbuf[i] = ydimen;
return(bad);
}
if (bad&3)
{
t = divscale30(z-s1,s2-s1);
inty = yb1[w] + mulscale30(yb2[w]-yb1[w],t);
xcross = xb1[w] + scale(mulscale30(yb2[w],t),xb2[w]-xb1[w],inty);
if ((bad&3) == 2)
{
if (xb1[w] <= xcross) { iy2 = inty; ix2 = xcross; }
//clearbufbyte(&mostbuf[xcross+1],(xb2[w]-xcross)*sizeof(mostbuf[0]),0L);
for (i=xcross+1; i<=xb2[w]; i++) mostbuf[i] = 0;
}
else
{
if (xcross <= xb2[w]) { iy1 = inty; ix1 = xcross; }
//clearbufbyte(&mostbuf[xb1[w]],(xcross-xb1[w]+1)*sizeof(mostbuf[0]),0L);
for (i=xb1[w]; i<=xcross; i++) mostbuf[i] = 0;
}
}
if (bad&12)
{
t = divscale30(z-s3,s4-s3);
inty = yb1[w] + mulscale30(yb2[w]-yb1[w],t);
xcross = xb1[w] + scale(mulscale30(yb2[w],t),xb2[w]-xb1[w],inty);
if ((bad&12) == 8)
{
if (xb1[w] <= xcross) { iy2 = inty; ix2 = xcross; }
//clearbufbyte(&mostbuf[xcross+1],(xb2[w]-xcross)*sizeof(mostbuf[0]),ydimen+(ydimen<<16));
for (i=xcross+1; i<=xb2[w]; i++) mostbuf[i] = ydimen;
}
else
{
if (xcross <= xb2[w]) { iy1 = inty; ix1 = xcross; }
//clearbufbyte(&mostbuf[xb1[w]],(xcross-xb1[w]+1)*sizeof(mostbuf[0]),ydimen+(ydimen<<16));
for (i=xb1[w]; i<=xcross; i++) mostbuf[i] = ydimen;
}
}
y = (scale(z,xdimenscale,iy1)<<4);
//// enable for paranoia:
// ix1 = clamp(ix1, 0, xres-1);
// ix2 = clamp(ix2, 0, xres-1);
// if (ix2-ix1 < 0)
// swaplong(&ix1, &ix2);
// PK 20110423: a bit consistency checking is a good thing:
tmp = (ix2-ix1 >= 0) ? (ix2-ix1+1) : 1;
yinc = ((scale(z,xdimenscale,iy2)<<4)-y) / tmp;
qinterpolatedown16short((intptr_t)&mostbuf[ix1],tmp,y+(globalhoriz<<16),yinc);
if (mostbuf[ix1] < 0) mostbuf[ix1] = 0;
if (mostbuf[ix1] > ydimen) mostbuf[ix1] = ydimen;
if (mostbuf[ix2] < 0) mostbuf[ix2] = 0;
if (mostbuf[ix2] > ydimen) mostbuf[ix2] = ydimen;
return(bad);
}
//
// wallmost (internal)
//
static int32_t wallmost(int16_t *mostbuf, int32_t w, int32_t sectnum, char dastat)
{
int32_t bad, i, j, t, y, z, inty, intz, xcross, yinc, fw;
int32_t x1, y1, z1, x2, y2, z2, xv, yv, dx, dy, dasqr, oz1, oz2;
int32_t s1, s2, s3, s4, ix1, ix2, iy1, iy2;
int32_t tmp;
//char datempbuf[256];
if (dastat == 0)
{
z = sector[sectnum].ceilingz-globalposz;
if ((sector[sectnum].ceilingstat&2) == 0) return(owallmost(mostbuf,w,z));
}
else
{
z = sector[sectnum].floorz-globalposz;
if ((sector[sectnum].floorstat&2) == 0) return(owallmost(mostbuf,w,z));
}
i = thewall[w];
if (i == sector[sectnum].wallptr) return(owallmost(mostbuf,w,z));
x1 = wall[i].x; x2 = wall[wall[i].point2].x-x1;
y1 = wall[i].y; y2 = wall[wall[i].point2].y-y1;
fw = sector[sectnum].wallptr; i = wall[fw].point2;
dx = wall[i].x-wall[fw].x; dy = wall[i].y-wall[fw].y;
dasqr = krecipasm(nsqrtasm(dx*dx+dy*dy));
if (xb1[w] == 0)
{ xv = cosglobalang+sinviewingrangeglobalang; yv = singlobalang-cosviewingrangeglobalang; }
else
{ xv = x1-globalposx; yv = y1-globalposy; }
i = xv*(y1-globalposy)-yv*(x1-globalposx); j = yv*x2-xv*y2;
if (klabs(j) > klabs(i>>3)) i = divscale28(i,j);
if (dastat == 0)
{
t = mulscale15(sector[sectnum].ceilingheinum,dasqr);
z1 = sector[sectnum].ceilingz;
}
else
{
t = mulscale15(sector[sectnum].floorheinum,dasqr);
z1 = sector[sectnum].floorz;
}
z1 = dmulscale24(dx*t,mulscale20(y2,i)+((y1-wall[fw].y)<<8),
-dy*t,mulscale20(x2,i)+((x1-wall[fw].x)<<8))+((z1-globalposz)<<7);
if (xb2[w] == xdimen-1)
{ xv = cosglobalang-sinviewingrangeglobalang; yv = singlobalang+cosviewingrangeglobalang; }
else
{ xv = (x2+x1)-globalposx; yv = (y2+y1)-globalposy; }
i = xv*(y1-globalposy)-yv*(x1-globalposx); j = yv*x2-xv*y2;
if (klabs(j) > klabs(i>>3)) i = divscale28(i,j);
if (dastat == 0)
{
t = mulscale15(sector[sectnum].ceilingheinum,dasqr);
z2 = sector[sectnum].ceilingz;
}
else
{
t = mulscale15(sector[sectnum].floorheinum,dasqr);
z2 = sector[sectnum].floorz;
}
z2 = dmulscale24(dx*t,mulscale20(y2,i)+((y1-wall[fw].y)<<8),
-dy*t,mulscale20(x2,i)+((x1-wall[fw].x)<<8))+((z2-globalposz)<<7);
s1 = mulscale20(globaluclip,yb1[w]); s2 = mulscale20(globaluclip,yb2[w]);
s3 = mulscale20(globaldclip,yb1[w]); s4 = mulscale20(globaldclip,yb2[w]);
bad = (z1<s1)+((z2<s2)<<1)+((z1>s3)<<2)+((z2>s4)<<3);
ix1 = xb1[w]; ix2 = xb2[w];
iy1 = yb1[w]; iy2 = yb2[w];
oz1 = z1; oz2 = z2;
if ((bad&3) == 3)
{
//clearbufbyte(&mostbuf[ix1],(ix2-ix1+1)*sizeof(mostbuf[0]),0L);
for (i=ix1; i<=ix2; i++) mostbuf[i] = 0;
return(bad);
}
if ((bad&12) == 12)
{
//clearbufbyte(&mostbuf[ix1],(ix2-ix1+1)*sizeof(mostbuf[0]),ydimen+(ydimen<<16));
for (i=ix1; i<=ix2; i++) mostbuf[i] = ydimen;
return(bad);
}
if (bad&3)
{
//inty = intz / (globaluclip>>16)
t = divscale30(oz1-s1,s2-s1+oz1-oz2);
inty = yb1[w] + mulscale30(yb2[w]-yb1[w],t);
intz = oz1 + mulscale30(oz2-oz1,t);
xcross = xb1[w] + scale(mulscale30(yb2[w],t),xb2[w]-xb1[w],inty);
//t = divscale30((x1<<4)-xcross*yb1[w],xcross*(yb2[w]-yb1[w])-((x2-x1)<<4));
//inty = yb1[w] + mulscale30(yb2[w]-yb1[w],t);
//intz = z1 + mulscale30(z2-z1,t);
if ((bad&3) == 2)
{
if (xb1[w] <= xcross) { z2 = intz; iy2 = inty; ix2 = xcross; }
//clearbufbyte(&mostbuf[xcross+1],(xb2[w]-xcross)*sizeof(mostbuf[0]),0L);
for (i=xcross+1; i<=xb2[w]; i++) mostbuf[i] = 0;
}
else
{
if (xcross <= xb2[w]) { z1 = intz; iy1 = inty; ix1 = xcross; }
//clearbufbyte(&mostbuf[xb1[w]],(xcross-xb1[w]+1)*sizeof(mostbuf[0]),0L);
for (i=xb1[w]; i<=xcross; i++) mostbuf[i] = 0;
}
}
if (bad&12)
{
//inty = intz / (globaldclip>>16)
t = divscale30(oz1-s3,s4-s3+oz1-oz2);
inty = yb1[w] + mulscale30(yb2[w]-yb1[w],t);
intz = oz1 + mulscale30(oz2-oz1,t);
xcross = xb1[w] + scale(mulscale30(yb2[w],t),xb2[w]-xb1[w],inty);
//t = divscale30((x1<<4)-xcross*yb1[w],xcross*(yb2[w]-yb1[w])-((x2-x1)<<4));
//inty = yb1[w] + mulscale30(yb2[w]-yb1[w],t);
//intz = z1 + mulscale30(z2-z1,t);
if ((bad&12) == 8)
{
if (xb1[w] <= xcross) { z2 = intz; iy2 = inty; ix2 = xcross; }
//clearbufbyte(&mostbuf[xcross+1],(xb2[w]-xcross)*sizeof(mostbuf[0]),ydimen+(ydimen<<16));
for (i=xcross+1; i<=xb2[w]; i++) mostbuf[i] = ydimen;
}
else
{
if (xcross <= xb2[w]) { z1 = intz; iy1 = inty; ix1 = xcross; }
//clearbufbyte(&mostbuf[xb1[w]],(xcross-xb1[w]+1)*sizeof(mostbuf[0]),ydimen+(ydimen<<16));
for (i=xb1[w]; i<=xcross; i++) mostbuf[i] = ydimen;
}
}
y = (scale(z1,xdimenscale,iy1)<<4);
//// enable for paranoia:
// ix1 = clamp(ix1, 0, xres-1);
// ix2 = clamp(ix2, 0, xres-1);
// if (ix2-ix1 < 0)
// swaplong(&ix1, &ix2);
// PK 20110423: a bit consistency checking is a good thing:
tmp = (ix2-ix1 >= 0) ? (ix2-ix1+1) : 1;
yinc = ((scale(z2,xdimenscale,iy2)<<4)-y) / tmp;
qinterpolatedown16short((intptr_t)&mostbuf[ix1],tmp,y+(globalhoriz<<16),yinc);
if (mostbuf[ix1] < 0) mostbuf[ix1] = 0;
if (mostbuf[ix1] > ydimen) mostbuf[ix1] = ydimen;
if (mostbuf[ix2] < 0) mostbuf[ix2] = 0;
if (mostbuf[ix2] > ydimen) mostbuf[ix2] = ydimen;
return(bad);
}
//
// ceilscan (internal)
//
static void ceilscan(int32_t x1, int32_t x2, int32_t sectnum)
{
int32_t i, j, ox, oy, x, y1, y2, twall, bwall;
sectortype *sec;
sec = &sector[sectnum];
if (palookup[sec->ceilingpal] != globalpalwritten)
{
globalpalwritten = palookup[sec->ceilingpal];
if (!globalpalwritten) globalpalwritten = palookup[globalpal]; // JBF: fixes null-pointer crash
setpalookupaddress(globalpalwritten);
}
globalzd = sec->ceilingz-globalposz;
if (globalzd > 0) return;
globalpicnum = sec->ceilingpicnum;
if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0;
setgotpic(globalpicnum);
if ((tilesizx[globalpicnum] <= 0) || (tilesizy[globalpicnum] <= 0)) return;
if (picanm[globalpicnum]&192) globalpicnum += animateoffs((int16_t)globalpicnum,(int16_t)sectnum);
if (waloff[globalpicnum] == 0) loadtile(globalpicnum);
globalbufplc = waloff[globalpicnum];
globalshade = (int32_t)sec->ceilingshade;
globvis = globalcisibility;
if (sec->visibility != 0) globvis = mulscale4(globvis,(int32_t)((uint8_t)(sec->visibility+16)));
globalorientation = (int32_t)sec->ceilingstat;
if ((globalorientation&64) == 0)
{
globalx1 = singlobalang; globalx2 = singlobalang;
globaly1 = cosglobalang; globaly2 = cosglobalang;
globalxpanning = (globalposx<<20);
globalypanning = -(globalposy<<20);
}
else
{
j = sec->wallptr;
ox = wall[wall[j].point2].x - wall[j].x;
oy = wall[wall[j].point2].y - wall[j].y;
i = nsqrtasm(ox*ox+oy*oy); if (i == 0) i = 1024; else i = 1048576/i;
globalx1 = mulscale10(dmulscale10(ox,singlobalang,-oy,cosglobalang),i);
globaly1 = mulscale10(dmulscale10(ox,cosglobalang,oy,singlobalang),i);
globalx2 = -globalx1;
globaly2 = -globaly1;
ox = ((wall[j].x-globalposx)<<6); oy = ((wall[j].y-globalposy)<<6);
i = dmulscale14(oy,cosglobalang,-ox,singlobalang);
j = dmulscale14(ox,cosglobalang,oy,singlobalang);
ox = i; oy = j;
globalxpanning = globalx1*ox - globaly1*oy;
globalypanning = globaly2*ox + globalx2*oy;
}
globalx2 = mulscale16(globalx2,viewingrangerecip);
globaly1 = mulscale16(globaly1,viewingrangerecip);
globalxshift = (8-(picsiz[globalpicnum]&15));
globalyshift = (8-(picsiz[globalpicnum]>>4));
if (globalorientation&8) { globalxshift++; globalyshift++; }
if ((globalorientation&0x4) > 0)
{
i = globalxpanning; globalxpanning = globalypanning; globalypanning = i;
i = globalx2; globalx2 = -globaly1; globaly1 = -i;
i = globalx1; globalx1 = globaly2; globaly2 = i;
}
if ((globalorientation&0x10) > 0) globalx1 = -globalx1, globaly1 = -globaly1, globalxpanning = -globalxpanning;
if ((globalorientation&0x20) > 0) globalx2 = -globalx2, globaly2 = -globaly2, globalypanning = -globalypanning;
globalx1 <<= globalxshift; globaly1 <<= globalxshift;
globalx2 <<= globalyshift; globaly2 <<= globalyshift;
globalxpanning <<= globalxshift; globalypanning <<= globalyshift;
globalxpanning += (((int32_t)sec->ceilingxpanning)<<24);
globalypanning += (((int32_t)sec->ceilingypanning)<<24);
globaly1 = (-globalx1-globaly1)*halfxdimen;
globalx2 = (globalx2-globaly2)*halfxdimen;
sethlinesizes(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4,globalbufplc);
globalx2 += globaly2*(x1-1);
globaly1 += globalx1*(x1-1);
globalx1 = mulscale16(globalx1,globalzd);
globalx2 = mulscale16(globalx2,globalzd);
globaly1 = mulscale16(globaly1,globalzd);
globaly2 = mulscale16(globaly2,globalzd);
globvis = klabs(mulscale10(globvis,globalzd));
if (!(globalorientation&0x180))
{
y1 = umost[x1]; y2 = y1;
for (x=x1; x<=x2; x++)
{
twall = umost[x]-1; bwall = min(uplc[x],dmost[x]);
if (twall < bwall-1)
{
if (twall >= y2)
{
while (y1 < y2-1) hline(x-1,++y1);
y1 = twall;
}
else
{
while (y1 < twall) hline(x-1,++y1);
while (y1 > twall) lastx[y1--] = x;
}
while (y2 > bwall) hline(x-1,--y2);
while (y2 < bwall) lastx[y2++] = x;
}
else
{
while (y1 < y2-1) hline(x-1,++y1);
if (x == x2) { globalx2 += globaly2; globaly1 += globalx1; break; }
y1 = umost[x+1]; y2 = y1;
}
globalx2 += globaly2; globaly1 += globalx1;
}
while (y1 < y2-1) hline(x2,++y1);
faketimerhandler();
return;
}
switch (globalorientation&0x180)
{
case 128:
msethlineshift(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4);
break;
case 256:
settransnormal();
tsethlineshift(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4);
break;
case 384:
settransreverse();
tsethlineshift(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4);
break;
}
y1 = umost[x1]; y2 = y1;
for (x=x1; x<=x2; x++)
{
twall = umost[x]-1; bwall = min(uplc[x],dmost[x]);
if (twall < bwall-1)
{
if (twall >= y2)
{
while (y1 < y2-1) slowhline(x-1,++y1);
y1 = twall;
}
else
{
while (y1 < twall) slowhline(x-1,++y1);
while (y1 > twall) lastx[y1--] = x;
}
while (y2 > bwall) slowhline(x-1,--y2);
while (y2 < bwall) lastx[y2++] = x;
}
else
{
while (y1 < y2-1) slowhline(x-1,++y1);
if (x == x2) { globalx2 += globaly2; globaly1 += globalx1; break; }
y1 = umost[x+1]; y2 = y1;
}
globalx2 += globaly2; globaly1 += globalx1;
}
while (y1 < y2-1) slowhline(x2,++y1);
faketimerhandler();
}
//
// florscan (internal)
//
static void florscan(int32_t x1, int32_t x2, int32_t sectnum)
{
int32_t i, j, ox, oy, x, y1, y2, twall, bwall;
sectortype *sec;
sec = &sector[sectnum];
if (palookup[sec->floorpal] != globalpalwritten)
{
globalpalwritten = palookup[sec->floorpal];
if (!globalpalwritten) globalpalwritten = palookup[globalpal]; // JBF: fixes null-pointer crash
setpalookupaddress(globalpalwritten);
}
globalzd = globalposz-sec->floorz;
if (globalzd > 0) return;
globalpicnum = sec->floorpicnum;
if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0;
setgotpic(globalpicnum);
if ((tilesizx[globalpicnum] <= 0) || (tilesizy[globalpicnum] <= 0)) return;
if (picanm[globalpicnum]&192) globalpicnum += animateoffs((int16_t)globalpicnum,(int16_t)sectnum);
if (waloff[globalpicnum] == 0) loadtile(globalpicnum);
globalbufplc = waloff[globalpicnum];
globalshade = (int32_t)sec->floorshade;
globvis = globalcisibility;
if (sec->visibility != 0) globvis = mulscale4(globvis,(int32_t)((uint8_t)(sec->visibility+16)));
globalorientation = (int32_t)sec->floorstat;
if ((globalorientation&64) == 0)
{
globalx1 = singlobalang; globalx2 = singlobalang;
globaly1 = cosglobalang; globaly2 = cosglobalang;
globalxpanning = (globalposx<<20);
globalypanning = -(globalposy<<20);
}
else
{
j = sec->wallptr;
ox = wall[wall[j].point2].x - wall[j].x;
oy = wall[wall[j].point2].y - wall[j].y;
i = nsqrtasm(ox*ox+oy*oy); if (i == 0) i = 1024; else i = 1048576/i;
globalx1 = mulscale10(dmulscale10(ox,singlobalang,-oy,cosglobalang),i);
globaly1 = mulscale10(dmulscale10(ox,cosglobalang,oy,singlobalang),i);
globalx2 = -globalx1;
globaly2 = -globaly1;
ox = ((wall[j].x-globalposx)<<6); oy = ((wall[j].y-globalposy)<<6);
i = dmulscale14(oy,cosglobalang,-ox,singlobalang);
j = dmulscale14(ox,cosglobalang,oy,singlobalang);
ox = i; oy = j;
globalxpanning = globalx1*ox - globaly1*oy;
globalypanning = globaly2*ox + globalx2*oy;
}
globalx2 = mulscale16(globalx2,viewingrangerecip);
globaly1 = mulscale16(globaly1,viewingrangerecip);
globalxshift = (8-(picsiz[globalpicnum]&15));
globalyshift = (8-(picsiz[globalpicnum]>>4));
if (globalorientation&8) { globalxshift++; globalyshift++; }
if ((globalorientation&0x4) > 0)
{
i = globalxpanning; globalxpanning = globalypanning; globalypanning = i;
i = globalx2; globalx2 = -globaly1; globaly1 = -i;
i = globalx1; globalx1 = globaly2; globaly2 = i;
}
if ((globalorientation&0x10) > 0) globalx1 = -globalx1, globaly1 = -globaly1, globalxpanning = -globalxpanning;
if ((globalorientation&0x20) > 0) globalx2 = -globalx2, globaly2 = -globaly2, globalypanning = -globalypanning;
globalx1 <<= globalxshift; globaly1 <<= globalxshift;
globalx2 <<= globalyshift; globaly2 <<= globalyshift;
globalxpanning <<= globalxshift; globalypanning <<= globalyshift;
globalxpanning += (((int32_t)sec->floorxpanning)<<24);
globalypanning += (((int32_t)sec->floorypanning)<<24);
globaly1 = (-globalx1-globaly1)*halfxdimen;
globalx2 = (globalx2-globaly2)*halfxdimen;
sethlinesizes(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4,globalbufplc);
globalx2 += globaly2*(x1-1);
globaly1 += globalx1*(x1-1);
globalx1 = mulscale16(globalx1,globalzd);
globalx2 = mulscale16(globalx2,globalzd);
globaly1 = mulscale16(globaly1,globalzd);
globaly2 = mulscale16(globaly2,globalzd);
globvis = klabs(mulscale10(globvis,globalzd));
if (!(globalorientation&0x180))
{
y1 = max(dplc[x1],umost[x1]); y2 = y1;
for (x=x1; x<=x2; x++)
{
twall = max(dplc[x],umost[x])-1; bwall = dmost[x];
if (twall < bwall-1)
{
if (twall >= y2)
{
while (y1 < y2-1) hline(x-1,++y1);
y1 = twall;
}
else
{
while (y1 < twall) hline(x-1,++y1);
while (y1 > twall) lastx[y1--] = x;
}
while (y2 > bwall) hline(x-1,--y2);
while (y2 < bwall) lastx[y2++] = x;
}
else
{
while (y1 < y2-1) hline(x-1,++y1);
if (x == x2) { globalx2 += globaly2; globaly1 += globalx1; break; }
y1 = max(dplc[x+1],umost[x+1]); y2 = y1;
}
globalx2 += globaly2; globaly1 += globalx1;
}
while (y1 < y2-1) hline(x2,++y1);
faketimerhandler();
return;
}
switch (globalorientation&0x180)
{
case 128:
msethlineshift(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4);
break;
case 256:
settransnormal();
tsethlineshift(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4);
break;
case 384:
settransreverse();
tsethlineshift(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4);
break;
}
y1 = max(dplc[x1],umost[x1]); y2 = y1;
for (x=x1; x<=x2; x++)
{
twall = max(dplc[x],umost[x])-1; bwall = dmost[x];
if (twall < bwall-1)
{
if (twall >= y2)
{
while (y1 < y2-1) slowhline(x-1,++y1);
y1 = twall;
}
else
{
while (y1 < twall) slowhline(x-1,++y1);
while (y1 > twall) lastx[y1--] = x;
}
while (y2 > bwall) slowhline(x-1,--y2);
while (y2 < bwall) lastx[y2++] = x;
}
else
{
while (y1 < y2-1) slowhline(x-1,++y1);
if (x == x2) { globalx2 += globaly2; globaly1 += globalx1; break; }
y1 = max(dplc[x+1],umost[x+1]); y2 = y1;
}
globalx2 += globaly2; globaly1 += globalx1;
}
while (y1 < y2-1) slowhline(x2,++y1);
faketimerhandler();
}
//
// wallscan (internal)
//
static void wallscan(int32_t x1, int32_t x2, int16_t *uwal, int16_t *dwal, int32_t *swal, int32_t *lwal)
{
int32_t x, xnice, ynice;
intptr_t fpalookup;
int32_t y1ve[4], y2ve[4], tsizx, tsizy;
#ifndef ENGINE_USING_A_C
char bad;
int32_t i, u4, d4, z;
#endif
#ifdef YAX_ENABLE
if (g_nodraw)
return;
#endif
if (x2 >= xdim) x2 = xdim-1;
tsizx = tilesizx[globalpicnum];
tsizy = tilesizy[globalpicnum];
setgotpic(globalpicnum);
if ((tsizx <= 0) || (tsizy <= 0)) return;
if ((uwal[x1] > ydimen) && (uwal[x2] > ydimen)) return;
if ((dwal[x1] < 0) && (dwal[x2] < 0)) return;
if (waloff[globalpicnum] == 0) loadtile(globalpicnum);
xnice = (pow2long[picsiz[globalpicnum]&15] == tsizx);
if (xnice) tsizx--;
ynice = (pow2long[picsiz[globalpicnum]>>4] == tsizy);
if (ynice) tsizy = (picsiz[globalpicnum]>>4);
fpalookup = FP_OFF(palookup[globalpal]);
setupvlineasm(globalshiftval);
#ifndef ENGINE_USING_A_C
x = x1;
while ((umost[x] > dmost[x]) && (x <= x2)) x++;
for (; (x<=x2)&&((x+frameoffset)&3); x++)
{
y1ve[0] = max(uwal[x],umost[x]);
y2ve[0] = min(dwal[x],dmost[x]);
if (y2ve[0] <= y1ve[0]) continue;
palookupoffse[0] = fpalookup+(getpalookup((int32_t)mulscale16(swal[x],globvis),globalshade)<<8);
bufplce[0] = lwal[x] + globalxpanning;
if (bufplce[0] >= tsizx) { if (xnice == 0) bufplce[0] %= tsizx; else bufplce[0] &= tsizx; }
if (ynice == 0) bufplce[0] *= tsizy; else bufplce[0] <<= tsizy;
vince[0] = swal[x]*globalyscale;
vplce[0] = globalzd + vince[0]*(y1ve[0]-globalhoriz+1);
vlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0]-1,vplce[0],bufplce[0]+waloff[globalpicnum],x+frameoffset+ylookup[y1ve[0]]);
}
for (; x<=x2-3; x+=4)
{
bad = 0;
for (z=3; z>=0; z--)
{
y1ve[z] = max(uwal[x+z],umost[x+z]);
y2ve[z] = min(dwal[x+z],dmost[x+z])-1;
if (y2ve[z] < y1ve[z]) { bad += pow2char[z]; continue; }
i = lwal[x+z] + globalxpanning;
if (i >= tsizx) { if (xnice == 0) i %= tsizx; else i &= tsizx; }
if (ynice == 0) i *= tsizy; else i <<= tsizy;
bufplce[z] = waloff[globalpicnum]+i;
vince[z] = swal[x+z]*globalyscale;
vplce[z] = globalzd + vince[z]*(y1ve[z]-globalhoriz+1);
}
if (bad == 15) continue;
palookupoffse[0] = fpalookup+(getpalookup((int32_t)mulscale16(swal[x],globvis),globalshade)<<8);
palookupoffse[3] = fpalookup+(getpalookup((int32_t)mulscale16(swal[x+3],globvis),globalshade)<<8);
if ((palookupoffse[0] == palookupoffse[3]) && ((bad&0x9) == 0))
{
palookupoffse[1] = palookupoffse[0];
palookupoffse[2] = palookupoffse[0];
}
else
{
palookupoffse[1] = fpalookup+(getpalookup((int32_t)mulscale16(swal[x+1],globvis),globalshade)<<8);
palookupoffse[2] = fpalookup+(getpalookup((int32_t)mulscale16(swal[x+2],globvis),globalshade)<<8);
}
u4 = max(max(y1ve[0],y1ve[1]),max(y1ve[2],y1ve[3]));
d4 = min(min(y2ve[0],y2ve[1]),min(y2ve[2],y2ve[3]));
if ((bad != 0) || (u4 >= d4))
{
if (!(bad&1)) prevlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0],vplce[0],bufplce[0],ylookup[y1ve[0]]+x+frameoffset+0);
if (!(bad&2)) prevlineasm1(vince[1],palookupoffse[1],y2ve[1]-y1ve[1],vplce[1],bufplce[1],ylookup[y1ve[1]]+x+frameoffset+1);
if (!(bad&4)) prevlineasm1(vince[2],palookupoffse[2],y2ve[2]-y1ve[2],vplce[2],bufplce[2],ylookup[y1ve[2]]+x+frameoffset+2);
if (!(bad&8)) prevlineasm1(vince[3],palookupoffse[3],y2ve[3]-y1ve[3],vplce[3],bufplce[3],ylookup[y1ve[3]]+x+frameoffset+3);
continue;
}
if (u4 > y1ve[0]) vplce[0] = prevlineasm1(vince[0],palookupoffse[0],u4-y1ve[0]-1,vplce[0],bufplce[0],ylookup[y1ve[0]]+x+frameoffset+0);
if (u4 > y1ve[1]) vplce[1] = prevlineasm1(vince[1],palookupoffse[1],u4-y1ve[1]-1,vplce[1],bufplce[1],ylookup[y1ve[1]]+x+frameoffset+1);
if (u4 > y1ve[2]) vplce[2] = prevlineasm1(vince[2],palookupoffse[2],u4-y1ve[2]-1,vplce[2],bufplce[2],ylookup[y1ve[2]]+x+frameoffset+2);
if (u4 > y1ve[3]) vplce[3] = prevlineasm1(vince[3],palookupoffse[3],u4-y1ve[3]-1,vplce[3],bufplce[3],ylookup[y1ve[3]]+x+frameoffset+3);
if (d4 >= u4) vlineasm4(d4-u4+1,ylookup[u4]+x+frameoffset);
i = x+frameoffset+ylookup[d4+1];
if (y2ve[0] > d4) prevlineasm1(vince[0],palookupoffse[0],y2ve[0]-d4-1,vplce[0],bufplce[0],i+0);
if (y2ve[1] > d4) prevlineasm1(vince[1],palookupoffse[1],y2ve[1]-d4-1,vplce[1],bufplce[1],i+1);
if (y2ve[2] > d4) prevlineasm1(vince[2],palookupoffse[2],y2ve[2]-d4-1,vplce[2],bufplce[2],i+2);
if (y2ve[3] > d4) prevlineasm1(vince[3],palookupoffse[3],y2ve[3]-d4-1,vplce[3],bufplce[3],i+3);
}
for (; x<=x2; x++)
{
y1ve[0] = max(uwal[x],umost[x]);
y2ve[0] = min(dwal[x],dmost[x]);
if (y2ve[0] <= y1ve[0]) continue;
palookupoffse[0] = fpalookup+(getpalookup((int32_t)mulscale16(swal[x],globvis),globalshade)<<8);
bufplce[0] = lwal[x] + globalxpanning;
if (bufplce[0] >= tsizx) { if (xnice == 0) bufplce[0] %= tsizx; else bufplce[0] &= tsizx; }
if (ynice == 0) bufplce[0] *= tsizy; else bufplce[0] <<= tsizy;
vince[0] = swal[x]*globalyscale;
vplce[0] = globalzd + vince[0]*(y1ve[0]-globalhoriz+1);
vlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0]-1,vplce[0],bufplce[0]+waloff[globalpicnum],x+frameoffset+ylookup[y1ve[0]]);
}
#else // ENGINE_USING_A_C
for (x=x1; x<=x2; x++)
{
y1ve[0] = max(uwal[x],umost[x]);
y2ve[0] = min(dwal[x],dmost[x]);
if (y2ve[0] <= y1ve[0]) continue;
palookupoffse[0] = fpalookup+(getpalookup((int32_t)mulscale16(swal[x],globvis),globalshade)<<8);
bufplce[0] = lwal[x] + globalxpanning;
if (bufplce[0] >= tsizx) { if (xnice == 0) bufplce[0] %= tsizx; else bufplce[0] &= tsizx; }
if (ynice == 0) bufplce[0] *= tsizy; else bufplce[0] <<= tsizy;
vince[0] = swal[x]*globalyscale;
vplce[0] = globalzd + vince[0]*(y1ve[0]-globalhoriz+1);
vlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0]-1,vplce[0],bufplce[0]+waloff[globalpicnum],x+frameoffset+ylookup[y1ve[0]]);
}
#endif
faketimerhandler();
}
//
// transmaskvline (internal)
//
static void transmaskvline(int32_t x)
{
int32_t vplc, vinc, i;
intptr_t palookupoffs;
intptr_t bufplc,p;
int16_t y1v, y2v;
if ((x < 0) || (x >= xdimen)) return;
y1v = max(uwall[x],startumost[x+windowx1]-windowy1);
y2v = min(dwall[x],startdmost[x+windowx1]-windowy1);
y2v--;
if (y2v < y1v) return;
palookupoffs = FP_OFF(palookup[globalpal]) + (getpalookup((int32_t)mulscale16(swall[x],globvis),globalshade)<<8);
vinc = swall[x]*globalyscale;
vplc = globalzd + vinc*(y1v-globalhoriz+1);
i = lwall[x]+globalxpanning;
if (i >= tilesizx[globalpicnum]) i %= tilesizx[globalpicnum];
bufplc = waloff[globalpicnum]+i*tilesizy[globalpicnum];
p = ylookup[y1v]+x+frameoffset;
tvlineasm1(vinc,palookupoffs,y2v-y1v,vplc,bufplc,p);
}
//
// transmaskvline2 (internal)
//
#ifndef ENGINE_USING_A_C
static void transmaskvline2(int32_t x)
{
int32_t i, y1, y2, x2;
int16_t y1ve[2], y2ve[2];
if ((x < 0) || (x >= xdimen)) return;
if (x == xdimen-1) { transmaskvline(x); return; }
x2 = x+1;
y1ve[0] = max(uwall[x],startumost[x+windowx1]-windowy1);
y2ve[0] = min(dwall[x],startdmost[x+windowx1]-windowy1)-1;
if (y2ve[0] < y1ve[0]) { transmaskvline(x2); return; }
y1ve[1] = max(uwall[x2],startumost[x2+windowx1]-windowy1);
y2ve[1] = min(dwall[x2],startdmost[x2+windowx1]-windowy1)-1;
if (y2ve[1] < y1ve[1]) { transmaskvline(x); return; }
palookupoffse[0] = FP_OFF(palookup[globalpal]) + (getpalookup((int32_t)mulscale16(swall[x],globvis),globalshade)<<8);
palookupoffse[1] = FP_OFF(palookup[globalpal]) + (getpalookup((int32_t)mulscale16(swall[x2],globvis),globalshade)<<8);
setuptvlineasm2(globalshiftval,palookupoffse[0],palookupoffse[1]);
vince[0] = swall[x]*globalyscale;
vince[1] = swall[x2]*globalyscale;
vplce[0] = globalzd + vince[0]*(y1ve[0]-globalhoriz+1);
vplce[1] = globalzd + vince[1]*(y1ve[1]-globalhoriz+1);
i = lwall[x] + globalxpanning;
if (i >= tilesizx[globalpicnum]) i %= tilesizx[globalpicnum];
bufplce[0] = waloff[globalpicnum]+i*tilesizy[globalpicnum];
i = lwall[x2] + globalxpanning;
if (i >= tilesizx[globalpicnum]) i %= tilesizx[globalpicnum];
bufplce[1] = waloff[globalpicnum]+i*tilesizy[globalpicnum];
y1 = max(y1ve[0],y1ve[1]);
y2 = min(y2ve[0],y2ve[1]);
i = x+frameoffset;
if (y1ve[0] != y1ve[1])
{
if (y1ve[0] < y1)
vplce[0] = tvlineasm1(vince[0],palookupoffse[0],y1-y1ve[0]-1,vplce[0],bufplce[0],ylookup[y1ve[0]]+i);
else
vplce[1] = tvlineasm1(vince[1],palookupoffse[1],y1-y1ve[1]-1,vplce[1],bufplce[1],ylookup[y1ve[1]]+i+1);
}
if (y2 > y1)
{
asm1 = vince[1];
asm2 = ylookup[y2]+i+1;
tvlineasm2(vplce[1],vince[0],bufplce[0],bufplce[1],vplce[0],ylookup[y1]+i);
}
else
{
asm1 = vplce[0];
asm2 = vplce[1];
}
if (y2ve[0] > y2ve[1])
tvlineasm1(vince[0],palookupoffse[0],y2ve[0]-y2-1,asm1,bufplce[0],ylookup[y2+1]+i);
else if (y2ve[0] < y2ve[1])
tvlineasm1(vince[1],palookupoffse[1],y2ve[1]-y2-1,asm2,bufplce[1],ylookup[y2+1]+i+1);
faketimerhandler();
}
#endif
//
// transmaskwallscan (internal)
//
static inline void transmaskwallscan(int32_t x1, int32_t x2)
{
int32_t x;
setgotpic(globalpicnum);
if ((tilesizx[globalpicnum] <= 0) || (tilesizy[globalpicnum] <= 0)) return;
if (waloff[globalpicnum] == 0) loadtile(globalpicnum);
setuptvlineasm(globalshiftval);
x = x1;
while ((startumost[x+windowx1] > startdmost[x+windowx1]) && (x <= x2)) x++;
#ifndef ENGINE_USING_A_C
if ((x <= x2) && (x&1)) transmaskvline(x), x++;
while (x < x2) transmaskvline2(x), x += 2;
#endif
while (x <= x2) transmaskvline(x), x++;
faketimerhandler();
}
////////// NON-power-of-two replacements for mhline/thline, adapted from a.c //////////
static void nonpow2_mhline(intptr_t bufplc, uint32_t bx, int32_t cntup16, int32_t junk, uint32_t by, intptr_t p)
{
char ch;
const char *const gbuf = (char *)bufplc;
const char *const gpal = (char *)asm3;
UNREFERENCED_PARAMETER(junk);
for (cntup16>>=16; cntup16>0; cntup16--)
{
ch = gbuf[(((uint64_t)bx)/((1ull<<32)/globalxspan))*globalyspan + ((uint64_t)by)/((1ull<<32)/globalyspan)];
if (ch != 255) *((char *)p) = gpal[ch];
bx += asm1;
by += asm2;
p++;
}
}
static void nonpow2_thline(intptr_t bufplc, uint32_t bx, int32_t cntup16, int32_t junk, uint32_t by, intptr_t p)
{
char ch;
const char *const gbuf = (char *)bufplc;
const char *const gpal = (char *)asm3;
UNREFERENCED_PARAMETER(junk);
if (globalorientation&512)
{
for (cntup16>>=16; cntup16>0; cntup16--)
{
ch = gbuf[(((uint64_t)bx)/((1ull<<32)/globalxspan))*globalyspan + ((uint64_t)by)/((1ull<<32)/globalyspan)];
if (ch != 255) *((char *)p) = transluc[(*((char *)p))+(gpal[ch]<<8)];
bx += asm1;
by += asm2;
p++;
}
}
else
{
for (cntup16>>=16; cntup16>0; cntup16--)
{
ch = gbuf[(((uint64_t)bx)/((1ull<<32)/globalxspan))*globalyspan + ((uint64_t)by)/((1ull<<32)/globalyspan)];
if (ch != 255) *((char *)p) = transluc[((*((char *)p))<<8)+gpal[ch]];
bx += asm1;
by += asm2;
p++;
}
}
}
////////// END non-power-of-two replacements //////////
//
// ceilspritehline (internal)
//
static inline void ceilspritehline(int32_t x2, int32_t y)
{
int32_t x1, v, bx, by;
//x = x1 + (x2-x1)t + (y1-y2)u ~ x = 160v
//y = y1 + (y2-y1)t + (x2-x1)u ~ y = (scrx-160)v
//z = z1 = z2 ~ z = posz + (scry-horiz)v
x1 = lastx[y]; if (x2 < x1) return;
v = mulscale20(globalzd,horizlookup[y-globalhoriz+horizycent]);
bx = mulscale14(globalx2*x1+globalx1,v) + globalxpanning;
by = mulscale14(globaly2*x1+globaly1,v) + globalypanning;
asm1 = mulscale14(globalx2,v);
asm2 = mulscale14(globaly2,v);
asm3 = FP_OFF(palookup[globalpal]) + (getpalookup((int32_t)mulscale28(klabs(v),globvis),globalshade)<<8);
if (globalispow2)
{
if ((globalorientation&2) == 0)
mhline(globalbufplc,bx,(x2-x1)<<16,0L,by,ylookup[y]+x1+frameoffset);
else
{
thline(globalbufplc,bx,(x2-x1)<<16,0L,by,ylookup[y]+x1+frameoffset);
}
}
else
{
if ((globalorientation&2) == 0)
nonpow2_mhline(globalbufplc,bx,(x2-x1)<<16,0L,by,ylookup[y]+x1+frameoffset);
else
{
nonpow2_thline(globalbufplc,bx,(x2-x1)<<16,0L,by,ylookup[y]+x1+frameoffset);
}
}
}
//
// ceilspritescan (internal)
//
static inline void ceilspritescan(int32_t x1, int32_t x2)
{
int32_t x, y1, y2, twall, bwall;
y1 = uwall[x1]; y2 = y1;
for (x=x1; x<=x2; x++)
{
twall = uwall[x]-1; bwall = dwall[x];
if (twall < bwall-1)
{
if (twall >= y2)
{
while (y1 < y2-1) ceilspritehline(x-1,++y1);
y1 = twall;
}
else
{
while (y1 < twall) ceilspritehline(x-1,++y1);
while (y1 > twall) lastx[y1--] = x;
}
while (y2 > bwall) ceilspritehline(x-1,--y2);
while (y2 < bwall) lastx[y2++] = x;
}
else
{
while (y1 < y2-1) ceilspritehline(x-1,++y1);
if (x == x2) break;
y1 = uwall[x+1]; y2 = y1;
}
}
while (y1 < y2-1) ceilspritehline(x2,++y1);
faketimerhandler();
}
////////// translucent slope vline, based on a-c.c's slopevlin //////////
static int32_t gglogx, gglogy, ggpinc;
static char *ggbuf, *ggpal;
static void setupslopevlin_alsotrans(int32_t logylogx, intptr_t bufplc, int32_t pinc)
{
setupslopevlin(logylogx, bufplc, pinc);
gglogx = (logylogx&255); gglogy = (logylogx>>8);
ggbuf = (char *)bufplc; ggpinc = pinc;
ggpal = palookup[globalpal] + (getpalookup(0,globalshade)<<8);
}
static void tslopevlin(uint8_t *p, int32_t i, const intptr_t *slopalptr, int32_t cnt, int32_t bx, int32_t by)
{
int32_t bz, bzinc;
uint32_t u, v;
uint8_t ch;
bz = asm3; bzinc = (asm1>>3);
for (; cnt>0; cnt--)
{
i = krecipasm(bz>>6); bz += bzinc;
u = bx+globalx3*i;
v = by+globaly3*i;
ch = *(uint8_t *)(slopalptr[0] + ggbuf[((u>>(32-gglogx))<<gglogy)+(v>>(32-gglogy))]);
if (globalorientation&128)
{
if (ch != 255) *p = transluc[*p+(ggpal[ch]<<8)];
}
else
{
if (ch != 255) *p = transluc[(*p<<8)+ggpal[ch]];
}
slopalptr--;
p += ggpinc;
}
}
//
// grouscan (internal)
//
#define BITSOFPRECISION 3 //Don't forget to change this in A.ASM also!
static void grouscan(int32_t dax1, int32_t dax2, int32_t sectnum, char dastat)
{
int32_t i, l, x, y, dx, dy, wx, wy, y1, y2, daz;
int32_t daslope, dasqr;
int32_t shoffs, shinc, m1, m2;
intptr_t *mptr1, *mptr2, *nptr1, *nptr2,j;
walltype *wal;
sectortype *sec;
sec = &sector[sectnum];
if (dastat == 0)
{
if (globalposz <= getceilzofslope(sectnum,globalposx,globalposy))
return; //Back-face culling
globalorientation = sec->ceilingstat;
globalpicnum = sec->ceilingpicnum;
globalshade = sec->ceilingshade;
globalpal = sec->ceilingpal;
daslope = sec->ceilingheinum;
daz = sec->ceilingz;
}
else
{
if (globalposz >= getflorzofslope(sectnum,globalposx,globalposy))
return; //Back-face culling
globalorientation = sec->floorstat;
globalpicnum = sec->floorpicnum;
globalshade = sec->floorshade;
globalpal = sec->floorpal;
daslope = sec->floorheinum;
daz = sec->floorz;
}
if ((picanm[globalpicnum]&192) != 0) globalpicnum += animateoffs(globalpicnum,sectnum);
setgotpic(globalpicnum);
if ((tilesizx[globalpicnum] <= 0) || (tilesizy[globalpicnum] <= 0)) return;
if (waloff[globalpicnum] == 0) loadtile(globalpicnum);
wal = &wall[sec->wallptr];
wx = wall[wal->point2].x - wal->x;
wy = wall[wal->point2].y - wal->y;
dasqr = krecipasm(nsqrtasm(wx*wx+wy*wy));
i = mulscale21(daslope,dasqr);
wx *= i; wy *= i;
globalx = -mulscale19(singlobalang,xdimenrecip);
globaly = mulscale19(cosglobalang,xdimenrecip);
globalx1 = (globalposx<<8);
globaly1 = -(globalposy<<8);
i = (dax1-halfxdimen)*xdimenrecip;
globalx2 = mulscale16(cosglobalang<<4,viewingrangerecip) - mulscale27(singlobalang,i);
globaly2 = mulscale16(singlobalang<<4,viewingrangerecip) + mulscale27(cosglobalang,i);
globalzd = (xdimscale<<9);
globalzx = -dmulscale17(wx,globaly2,-wy,globalx2) + mulscale10(1-globalhoriz,globalzd);
globalz = -dmulscale25(wx,globaly,-wy,globalx);
if (globalorientation&64) //Relative alignment
{
dx = mulscale14(wall[wal->point2].x-wal->x,dasqr);
dy = mulscale14(wall[wal->point2].y-wal->y,dasqr);
i = nsqrtasm(daslope*daslope+16777216);
x = globalx; y = globaly;
globalx = dmulscale16(x,dx,y,dy);
globaly = mulscale12(dmulscale16(-y,dx,x,dy),i);
x = ((wal->x-globalposx)<<8); y = ((wal->y-globalposy)<<8);
globalx1 = dmulscale16(-x,dx,-y,dy);
globaly1 = mulscale12(dmulscale16(-y,dx,x,dy),i);
x = globalx2; y = globaly2;
globalx2 = dmulscale16(x,dx,y,dy);
globaly2 = mulscale12(dmulscale16(-y,dx,x,dy),i);
}
if (globalorientation&0x4)
{
i = globalx; globalx = -globaly; globaly = -i;
i = globalx1; globalx1 = globaly1; globaly1 = i;
i = globalx2; globalx2 = -globaly2; globaly2 = -i;
}
if (globalorientation&0x10) { globalx1 = -globalx1, globalx2 = -globalx2, globalx = -globalx; }
if (globalorientation&0x20) { globaly1 = -globaly1, globaly2 = -globaly2, globaly = -globaly; }
daz = dmulscale9(wx,globalposy-wal->y,-wy,globalposx-wal->x) + ((daz-globalposz)<<8);
globalx2 = mulscale20(globalx2,daz); globalx = mulscale28(globalx,daz);
globaly2 = mulscale20(globaly2,-daz); globaly = mulscale28(globaly,-daz);
i = 8-(picsiz[globalpicnum]&15); j = 8-(picsiz[globalpicnum]>>4);
if (globalorientation&8) { i++; j++; }
globalx1 <<= (i+12); globalx2 <<= i; globalx <<= i;
globaly1 <<= (j+12); globaly2 <<= j; globaly <<= j;
if (dastat == 0)
{
globalx1 += (((int32_t)sec->ceilingxpanning)<<24);
globaly1 += (((int32_t)sec->ceilingypanning)<<24);
}
else
{
globalx1 += (((int32_t)sec->floorxpanning)<<24);
globaly1 += (((int32_t)sec->floorypanning)<<24);
}
asm1 = -(globalzd>>(16-BITSOFPRECISION));
globvis = globalvisibility;
if (sec->visibility != 0) globvis = mulscale4(globvis,(int32_t)((uint8_t)(sec->visibility+16)));
globvis = mulscale13(globvis,daz);
globvis = mulscale16(globvis,xdimscale);
j = FP_OFF(palookup[globalpal]);
setupslopevlin_alsotrans(((int32_t)(picsiz[globalpicnum]&15))+(((int32_t)(picsiz[globalpicnum]>>4))<<8),
waloff[globalpicnum],-ylookup[1]);
l = (globalzd>>16);
shinc = mulscale16(globalz,xdimenscale);
if (shinc > 0) shoffs = (4<<15); else shoffs = ((16380-ydimen)<<15); // JBF: was 2044
if (dastat == 0) y1 = umost[dax1]; else y1 = max(umost[dax1],dplc[dax1]);
m1 = mulscale16(y1,globalzd) + (globalzx>>6);
//Avoid visibility overflow by crossing horizon
if (globalzd > 0) m1 += (globalzd>>16); else m1 -= (globalzd>>16);
m2 = m1+l;
mptr1 = (intptr_t *)&slopalookup[y1+(shoffs>>15)]; mptr2 = mptr1+1;
for (x=dax1; x<=dax2; x++)
{
if (dastat == 0) { y1 = umost[x]; y2 = min(dmost[x],uplc[x])-1; }
else { y1 = max(umost[x],dplc[x]); y2 = dmost[x]-1; }
if (y1 <= y2)
{
nptr1 = (intptr_t *)&slopalookup[y1+(shoffs>>15)];
nptr2 = (intptr_t *)&slopalookup[y2+(shoffs>>15)];
while (nptr1 <= mptr1)
{
*mptr1-- = j + (getpalookup((int32_t)mulscale24(krecipasm(m1),globvis),globalshade)<<8);
m1 -= l;
}
while (nptr2 >= mptr2)
{
*mptr2++ = j + (getpalookup((int32_t)mulscale24(krecipasm(m2),globvis),globalshade)<<8);
m2 += l;
}
globalx3 = (globalx2>>10);
globaly3 = (globaly2>>10);
asm3 = mulscale16(y2,globalzd) + (globalzx>>6);
if ((globalorientation&256)==0)
slopevlin(ylookup[y2]+x+frameoffset,krecipasm(asm3>>3),(intptr_t)nptr2,y2-y1+1,globalx1,globaly1);
else
tslopevlin((uint8_t *)(ylookup[y2]+x+frameoffset),0,nptr2,y2-y1+1,globalx1,globaly1);
if ((x&15) == 0) faketimerhandler();
}
globalx2 += globalx;
globaly2 += globaly;
globalzx += globalz;
shoffs += shinc;
}
}
//
// parascan (internal)
//
static void parascan(int32_t dax1, int32_t dax2, int32_t sectnum, char dastat, int32_t bunch)
{
sectortype *sec;
int32_t j, k, l, m, n, x, z, wallnum, nextsectnum, globalhorizbak;
int16_t *topptr, *botptr;
int32_t dapyscale;
int16_t dapskybits;
static const int16_t zeropskyoff[MAXPSKYTILES];
const int16_t *dapskyoff;
UNREFERENCED_PARAMETER(dax1);
UNREFERENCED_PARAMETER(dax2);
sectnum = thesector[bunchfirst[bunch]]; sec = &sector[sectnum];
globalhorizbak = globalhoriz;
globvis = globalpisibility;
//globalorientation = 0L;
if (sec->visibility != 0) globvis = mulscale4(globvis,(int32_t)((uint8_t)(sec->visibility+16)));
if (dastat == 0)
{
globalpal = sec->ceilingpal;
globalpicnum = sec->ceilingpicnum;
globalshade = (int32_t)sec->ceilingshade;
globalxpanning = (int32_t)sec->ceilingxpanning;
globalypanning = (int32_t)sec->ceilingypanning;
topptr = umost;
botptr = uplc;
}
else
{
globalpal = sec->floorpal;
globalpicnum = sec->floorpicnum;
globalshade = (int32_t)sec->floorshade;
globalxpanning = (int32_t)sec->floorxpanning;
globalypanning = (int32_t)sec->floorypanning;
topptr = dplc;
botptr = dmost;
}
if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0;
if (picanm[globalpicnum]&192) globalpicnum += animateoffs(globalpicnum,(int16_t)sectnum);
globalshiftval = (picsiz[globalpicnum]>>4);
if (pow2long[globalshiftval] != tilesizy[globalpicnum]) globalshiftval++;
globalshiftval = 32-globalshiftval;
globalzd = (((tilesizy[globalpicnum]>>1)+parallaxyoffs)<<globalshiftval)+(globalypanning<<24);
globalyscale = (8<<(globalshiftval-19));
//if (globalorientation&256) globalyscale = -globalyscale, globalzd = -globalzd;
dapskyoff = zeropskyoff;
dapskybits = pskybits;
dapyscale = parallaxyscale;
for (j=0; j<pskynummultis; j++)
{
if (globalpicnum == pskymultilist[j])
{
dapskybits = pskymultibits[j];
dapskyoff = pskymultioff[j];
dapyscale = pskymultiyscale[j];
break;
}
}
if (dapyscale != 65536)
globalhoriz = mulscale16(globalhoriz-(ydimen>>1),dapyscale) + (ydimen>>1);
k = 11 - (picsiz[globalpicnum]&15) - dapskybits;
// WGR2 SVN: select new episode after playing wgmicky1 with Polymer
// (maybe switched to classic earlier).
// --> rendmode==0, glrendmode==4, we end up with globalpicnum==266,
// picsiz...==9 and dapskybits==3
// FIXME ?
if (k < 0)
k = 0;
x = -1;
for (z=bunchfirst[bunch]; z>=0; z=p2[z])
{
wallnum = thewall[z]; nextsectnum = wall[wallnum].nextsector;
if (nextsectnum >= 0) //else negative array access
{
if (dastat == 0) j = sector[nextsectnum].ceilingstat;
else j = sector[nextsectnum].floorstat;
}
if ((nextsectnum < 0) || (wall[wallnum].cstat&32) || ((j&1) == 0))
{
if (x == -1) x = xb1[z];
if (parallaxtype == 0)
{
n = mulscale16(xdimenrecip,viewingrange);
for (j=xb1[z]; j<=xb2[z]; j++)
lplc[j] = (((mulscale23(j-halfxdimen,n)+globalang)&2047)>>k);
}
else
{
for (j=xb1[z]; j<=xb2[z]; j++)
lplc[j] = ((((int32_t)radarang2[j]+globalang)&2047)>>k);
}
if (parallaxtype == 2)
{
n = mulscale16(xdimscale,viewingrange);
for (j=xb1[z]; j<=xb2[z]; j++)
swplc[j] = mulscale14(sintable[((int32_t)radarang2[j]+512)&2047],n);
}
else
clearbuf(&swplc[xb1[z]],xb2[z]-xb1[z]+1,mulscale16(xdimscale,viewingrange));
}
else if (x >= 0)
{
l = globalpicnum; m = (picsiz[globalpicnum]&15);
globalpicnum = l + dapskyoff[lplc[x]>>m];
if (((lplc[x]^lplc[xb1[z]-1])>>m) == 0)
wallscan(x,xb1[z]-1,topptr,botptr,swplc,lplc);
else
{
j = x;
while (x < xb1[z])
{
n = l + dapskyoff[lplc[x]>>m];
if (n != globalpicnum)
{
wallscan(j,x-1,topptr,botptr,swplc,lplc);
j = x;
globalpicnum = n;
}
x++;
}
if (j < x)
wallscan(j,x-1,topptr,botptr,swplc,lplc);
}
globalpicnum = l;
x = -1;
}
}
if (x >= 0)
{
l = globalpicnum; m = (picsiz[globalpicnum]&15);
globalpicnum = l + dapskyoff[lplc[x]>>m];
if (((lplc[x]^lplc[xb2[bunchlast[bunch]]])>>m) == 0)
wallscan(x,xb2[bunchlast[bunch]],topptr,botptr,swplc,lplc);
else
{
j = x;
while (x <= xb2[bunchlast[bunch]])
{
n = l + dapskyoff[lplc[x]>>m];
if (n != globalpicnum)
{
wallscan(j,x-1,topptr,botptr,swplc,lplc);
j = x;
globalpicnum = n;
}
x++;
}
if (j <= x)
wallscan(j,x-1,topptr,botptr,swplc,lplc);
}
globalpicnum = l;
}
globalhoriz = globalhorizbak;
}
//
// drawalls (internal)
//
static void drawalls(int32_t bunch)
{
sectortype *sec, *nextsec;
walltype *wal;
int32_t i, x, x1, x2, cz[5], fz[5];
int32_t z, wallnum, sectnum, nextsectnum;
int32_t startsmostwallcnt, startsmostcnt, gotswall;
char andwstat1, andwstat2;
z = bunchfirst[bunch];
sectnum = thesector[z]; sec = &sector[sectnum];
andwstat1 = 0xff; andwstat2 = 0xff;
for (; z>=0; z=p2[z]) //uplc/dplc calculation
{
andwstat1 &= wallmost(uplc,z,sectnum,(uint8_t)0);
andwstat2 &= wallmost(dplc,z,sectnum,(uint8_t)1);
}
#ifdef YAX_ENABLE
if (g_nodraw)
{
int32_t baselevp, checkcf;
int16_t bn[2];
# if 0
int32_t obunchchk = (1 && yax_globalbunch>=0 &&
haveymost[yax_globalbunch>>3]&(1<<(yax_globalbunch&7)));
// if (obunchchk)
x2 = yax_globalbunch*xdimen;
# endif
baselevp = (yax_globallev == YAX_MAXDRAWS);
yax_getbunches(sectnum, &bn[0], &bn[1]);
checkcf = (bn[0]>=0) + ((bn[1]>=0)<<1);
if (!baselevp)
checkcf &= (1<<yax_globalcf);
if ((andwstat1&3) == 3) // ceilings clipped
checkcf &= ~1;
if ((andwstat2&12) == 12) // floors clipped
checkcf &= ~2;
for (i=0; i<2; i++)
if (checkcf&(1<<i))
{
if ((haveymost[bn[i]>>3]&(1<<(bn[i]&7)))==0)
{
// init yax *most arrays for that bunch
haveymost[bn[i]>>3] |= (1<<(bn[i]&7));
for (x=xdimen*bn[i]; x<xdimen*(bn[i]+1); x++)
{
yumost[x] = ydimen;
ydmost[x] = 0;
}
}
x1 = bn[i]*xdimen;
for (x=x1+xb1[bunchfirst[bunch]]; x<=x1+xb2[bunchlast[bunch]]; x++)
{
if (i==YAX_CEILING)
{
yumost[x] = min(yumost[x], umost[x-x1]);
ydmost[x] = max(ydmost[x], min(dmost[x-x1], uplc[x-x1]));
}
else
{
yumost[x] = min(yumost[x], max(umost[x-x1], dplc[x-x1]));
ydmost[x] = max(ydmost[x], dmost[x-x1]);
}
# if 0
if (obunchchk)
{
yumost[x] = max(yumost[x], yumost[x-x1+x2]);
ydmost[x] = min(ydmost[x], ydmost[x-x1+x2]);
}
# endif
}
}
}
else
#endif
{
if ((andwstat1&3) != 3) //draw ceilings
#ifdef YAX_ENABLE
// this is to prevent double-drawing of translucent masked ceilings
if (r_tror_nomaskpass==0 || yax_globallev==YAX_MAXDRAWS || (sec->ceilingstat&256)==0 ||
yax_nomaskpass==1 || !(yax_gotsector[sectnum>>3]&(1<<(sectnum&7))))
#endif
{
if ((sec->ceilingstat&3) == 2)
grouscan(xb1[bunchfirst[bunch]],xb2[bunchlast[bunch]],sectnum,0);
else if ((sec->ceilingstat&1) == 0)
ceilscan(xb1[bunchfirst[bunch]],xb2[bunchlast[bunch]],sectnum);
else
parascan(xb1[bunchfirst[bunch]],xb2[bunchlast[bunch]],sectnum,0,bunch);
}
#ifdef YAX_ENABLE
// this is to prevent double-drawing of translucent masked floors
if (r_tror_nomaskpass==0 || yax_globallev==YAX_MAXDRAWS || (sec->floorstat&256)==0 ||
yax_nomaskpass==1 || !(yax_gotsector[sectnum>>3]&(1<<(sectnum&7))))
#endif
if ((andwstat2&12) != 12) //draw floors
{
if ((sec->floorstat&3) == 2)
grouscan(xb1[bunchfirst[bunch]],xb2[bunchlast[bunch]],sectnum,1);
else if ((sec->floorstat&1) == 0)
florscan(xb1[bunchfirst[bunch]],xb2[bunchlast[bunch]],sectnum);
else
parascan(xb1[bunchfirst[bunch]],xb2[bunchlast[bunch]],sectnum,1,bunch);
}
}
//DRAW WALLS SECTION!
for (z=bunchfirst[bunch]; z>=0; z=p2[z])
{
x1 = xb1[z]; x2 = xb2[z];
if (umost[x2] >= dmost[x2])
{
for (x=x1; x<x2; x++)
if (umost[x] < dmost[x]) break;
if (x >= x2)
{
smostwall[smostwallcnt] = z;
smostwalltype[smostwallcnt] = 0;
smostwallcnt++;
continue;
}
}
wallnum = thewall[z]; wal = &wall[wallnum];
nextsectnum = wal->nextsector;
nextsec = nextsectnum>=0 ? &sector[nextsectnum] : NULL;
gotswall = 0;
startsmostwallcnt = smostwallcnt;
startsmostcnt = smostcnt;
if ((searchit == 2) && (searchx >= x1) && (searchx <= x2))
{
if (searchy <= uplc[searchx]
#ifdef YAX_ENABLE
&& umost[searchx] <= searchy && getceilzofslope(sectnum, globalposx, globalposy) <= globalposz
&& (yax_getbunch(sectnum, YAX_CEILING) < 0 || showinvisibility || (sec->ceilingstat&(256+128)) || klabs(yax_globallev-YAX_MAXDRAWS)==YAX_MAXDRAWS)
#endif
) //ceiling
{
searchsector = sectnum; searchwall = wallnum;
searchstat = 1; searchit = 1;
}
else if (dplc[searchx] <= searchy
#ifdef YAX_ENABLE
&& searchy < dmost[searchx] && getflorzofslope(sectnum, globalposx, globalposy) >= globalposz
&& (yax_getbunch(sectnum, YAX_FLOOR) < 0 || showinvisibility || (sec->floorstat&(256+128)) || klabs(yax_globallev-YAX_MAXDRAWS)==YAX_MAXDRAWS)
#endif
) //floor
{
searchsector = sectnum; searchwall = wallnum;
searchstat = 2; searchit = 1;
}
}
#ifdef YAX_ENABLE
if (yax_nomaskpass==0 || !yax_isislandwall(wallnum, !yax_globalcf) || (yax_nomaskdidit=1, 0))
#endif
if (nextsectnum >= 0)
{
// 2 <--- 3
// x------------------x
// 0 ---> 1
//
// 4 (our pos, z wrt the nextsector!)
getzsofslope((int16_t)sectnum,wal->x,wal->y,&cz[0],&fz[0]);
getzsofslope((int16_t)sectnum,wall[wal->point2].x,wall[wal->point2].y,&cz[1],&fz[1]);
getzsofslope((int16_t)nextsectnum,wal->x,wal->y,&cz[2],&fz[2]);
getzsofslope((int16_t)nextsectnum,wall[wal->point2].x,wall[wal->point2].y,&cz[3],&fz[3]);
getzsofslope((int16_t)nextsectnum,globalposx,globalposy,&cz[4],&fz[4]);
if ((wal->cstat&48) == 16) maskwall[maskwallcnt++] = z;
if (((sec->ceilingstat&1) == 0) || ((nextsec->ceilingstat&1) == 0))
{
if ((cz[2] <= cz[0]) && (cz[3] <= cz[1]))
{
// if (globparaceilclip)
if (getceilzofslope(sectnum, globalposx, globalposy) <= globalposz)
for (x=x1; x<=x2; x++)
if (uplc[x] > umost[x])
if (umost[x] <= dmost[x])
{
umost[x] = uplc[x];
if (umost[x] > dmost[x]) numhits--;
}
}
else
{
wallmost(dwall,z,nextsectnum,(uint8_t)0);
if ((cz[2] > fz[0]) || (cz[3] > fz[1]))
for (i=x1; i<=x2; i++) if (dwall[i] > dplc[i]) dwall[i] = dplc[i];
if ((searchit == 2) && (searchx >= x1) && (searchx <= x2))
#ifdef YAX_ENABLE
if (uplc[searchx] <= searchy)
#endif
if (searchy <= dwall[searchx]) //wall
{
searchsector = sectnum; searchbottomwall = searchwall = wallnum;
searchisbottom = 0;
searchstat = 0; searchit = 1;
}
globalorientation = (int32_t)wal->cstat;
globalpicnum = wal->picnum;
if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0;
globalxpanning = (int32_t)wal->xpanning;
globalypanning = (int32_t)wal->ypanning;
globalshiftval = (picsiz[globalpicnum]>>4);
if (pow2long[globalshiftval] != tilesizy[globalpicnum]) globalshiftval++;
globalshiftval = 32-globalshiftval;
if (picanm[globalpicnum]&192) globalpicnum += animateoffs(globalpicnum,(int16_t)wallnum+16384);
globalshade = (int32_t)wal->shade;
globvis = globalvisibility;
if (sec->visibility != 0) globvis = mulscale4(globvis,(int32_t)((uint8_t)(sec->visibility+16)));
globalpal = (int32_t)wal->pal;
if (palookup[globalpal] == NULL) globalpal = 0; // JBF: fixes crash
globalyscale = (wal->yrepeat<<(globalshiftval-19));
if ((globalorientation&4) == 0)
globalzd = (((globalposz-nextsec->ceilingz)*globalyscale)<<8);
else
globalzd = (((globalposz-sec->ceilingz)*globalyscale)<<8);
globalzd += (globalypanning<<24);
if (globalorientation&256) globalyscale = -globalyscale, globalzd = -globalzd;
if (gotswall == 0) { gotswall = 1; prepwall(z,wal); }
wallscan(x1,x2,uplc,dwall,swall,lwall);
if ((cz[2] >= cz[0]) && (cz[3] >= cz[1]))
{
for (x=x1; x<=x2; x++)
if (dwall[x] > umost[x])
if (umost[x] <= dmost[x])
{
umost[x] = dwall[x];
if (umost[x] > dmost[x]) numhits--;
}
}
else
{
for (x=x1; x<=x2; x++)
if (umost[x] <= dmost[x])
{
i = max(uplc[x],dwall[x]);
if (i > umost[x])
{
umost[x] = i;
if (umost[x] > dmost[x]) numhits--;
}
}
}
}
if ((cz[2] < cz[0]) || (cz[3] < cz[1]) || (globalposz < cz[4]))
{
i = x2-x1+1;
if (smostcnt+i < MAXYSAVES)
{
smoststart[smostwallcnt] = smostcnt;
smostwall[smostwallcnt] = z;
smostwalltype[smostwallcnt] = 1; //1 for umost
smostwallcnt++;
copybufbyte(&umost[x1],&smost[smostcnt],i*sizeof(smost[0]));
smostcnt += i;
}
}
}
if (((sec->floorstat&1) == 0) || ((nextsec->floorstat&1) == 0))
{
if ((fz[2] >= fz[0]) && (fz[3] >= fz[1]))
{
// if (globparaflorclip)
if (getflorzofslope(sectnum, globalposx, globalposy) >= globalposz)
for (x=x1; x<=x2; x++)
if (dplc[x] < dmost[x])
if (umost[x] <= dmost[x])
{
dmost[x] = dplc[x];
if (umost[x] > dmost[x]) numhits--;
}
}
else
{
wallmost(uwall,z,nextsectnum,(uint8_t)1);
if ((fz[2] < cz[0]) || (fz[3] < cz[1]))
for (i=x1; i<=x2; i++) if (uwall[i] < uplc[i]) uwall[i] = uplc[i];
if ((searchit == 2) && (searchx >= x1) && (searchx <= x2))
#ifdef YAX_ENABLE
if (dplc[searchx] >= searchy)
#endif
if (searchy >= uwall[searchx]) //wall
{
searchsector = sectnum; searchbottomwall = searchwall = wallnum;
if ((wal->cstat&2) > 0) searchbottomwall = wal->nextwall;
searchisbottom = 1;
searchstat = 0; searchit = 1;
}
if ((wal->cstat&2) > 0)
{
wallnum = wal->nextwall; wal = &wall[wallnum];
globalorientation = (int32_t)wal->cstat;
globalpicnum = wal->picnum;
if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0;
globalxpanning = (int32_t)wal->xpanning;
globalypanning = (int32_t)wal->ypanning;
if (picanm[globalpicnum]&192) globalpicnum += animateoffs(globalpicnum,(int16_t)wallnum+16384);
globalshade = (int32_t)wal->shade;
globalpal = (int32_t)wal->pal;
wallnum = thewall[z]; wal = &wall[wallnum];
}
else
{
globalorientation = (int32_t)wal->cstat;
globalpicnum = wal->picnum;
if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0;
globalxpanning = (int32_t)wal->xpanning;
globalypanning = (int32_t)wal->ypanning;
if (picanm[globalpicnum]&192) globalpicnum += animateoffs(globalpicnum,(int16_t)wallnum+16384);
globalshade = (int32_t)wal->shade;
globalpal = (int32_t)wal->pal;
}
if (palookup[globalpal] == NULL) globalpal = 0; // JBF: fixes crash
globvis = globalvisibility;
if (sec->visibility != 0) globvis = mulscale4(globvis,(int32_t)((uint8_t)(sec->visibility+16)));
globalshiftval = (picsiz[globalpicnum]>>4);
if (pow2long[globalshiftval] != tilesizy[globalpicnum]) globalshiftval++;
globalshiftval = 32-globalshiftval;
globalyscale = (wal->yrepeat<<(globalshiftval-19));
if ((globalorientation&4) == 0)
globalzd = (((globalposz-nextsec->floorz)*globalyscale)<<8);
else
globalzd = (((globalposz-sec->ceilingz)*globalyscale)<<8);
globalzd += (globalypanning<<24);
if (globalorientation&256) globalyscale = -globalyscale, globalzd = -globalzd;
if (gotswall == 0) { gotswall = 1; prepwall(z,wal); }
wallscan(x1,x2,uwall,dplc,swall,lwall);
if ((fz[2] <= fz[0]) && (fz[3] <= fz[1]))
{
for (x=x1; x<=x2; x++)
if (uwall[x] < dmost[x])
if (umost[x] <= dmost[x])
{
dmost[x] = uwall[x];
if (umost[x] > dmost[x]) numhits--;
}
}
else
{
for (x=x1; x<=x2; x++)
if (umost[x] <= dmost[x])
{
i = min(dplc[x],uwall[x]);
if (i < dmost[x])
{
dmost[x] = i;
if (umost[x] > dmost[x]) numhits--;
}
}
}
}
if ((fz[2] > fz[0]) || (fz[3] > fz[1]) || (globalposz > fz[4]))
{
i = x2-x1+1;
if (smostcnt+i < MAXYSAVES)
{
smoststart[smostwallcnt] = smostcnt;
smostwall[smostwallcnt] = z;
smostwalltype[smostwallcnt] = 2; //2 for dmost
smostwallcnt++;
copybufbyte(&dmost[x1],&smost[smostcnt],i*sizeof(smost[0]));
smostcnt += i;
}
}
}
if (numhits < 0) return;
if ((!(wal->cstat&32)) && ((gotsector[nextsectnum>>3]&pow2char[nextsectnum&7]) == 0))
{
if (umost[x2] < dmost[x2])
scansector(nextsectnum);
else
{
for (x=x1; x<x2; x++)
if (umost[x] < dmost[x])
{ scansector(nextsectnum); break; }
//If can't see sector beyond, then cancel smost array and just
//store wall!
if (x == x2)
{
smostwallcnt = startsmostwallcnt;
smostcnt = startsmostcnt;
smostwall[smostwallcnt] = z;
smostwalltype[smostwallcnt] = 0;
smostwallcnt++;
}
}
}
}
if ((nextsectnum < 0) || (wal->cstat&32)) //White/1-way wall
{
globalorientation = (int32_t)wal->cstat;
if (nextsectnum < 0) globalpicnum = wal->picnum;
else globalpicnum = wal->overpicnum;
if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0;
globalxpanning = (int32_t)wal->xpanning;
globalypanning = (int32_t)wal->ypanning;
if (picanm[globalpicnum]&192) globalpicnum += animateoffs(globalpicnum,(int16_t)wallnum+16384);
globalshade = (int32_t)wal->shade;
globvis = globalvisibility;
if (sec->visibility != 0) globvis = mulscale4(globvis,(int32_t)((uint8_t)(sec->visibility+16)));
globalpal = (int32_t)wal->pal;
if (palookup[globalpal] == NULL) globalpal = 0; // JBF: fixes crash
globalshiftval = (picsiz[globalpicnum]>>4);
if (pow2long[globalshiftval] != tilesizy[globalpicnum]) globalshiftval++;
globalshiftval = 32-globalshiftval;
globalyscale = (wal->yrepeat<<(globalshiftval-19));
if (nextsectnum >= 0)
{
if ((globalorientation&4) == 0) globalzd = globalposz-nextsec->ceilingz;
else globalzd = globalposz-sec->ceilingz;
}
else
{
if ((globalorientation&4) == 0) globalzd = globalposz-sec->ceilingz;
else globalzd = globalposz-sec->floorz;
}
globalzd = ((globalzd*globalyscale)<<8) + (globalypanning<<24);
if (globalorientation&256) globalyscale = -globalyscale, globalzd = -globalzd;
if (gotswall == 0) { gotswall = 1; prepwall(z,wal); }
wallscan(x1,x2,uplc,dplc,swall,lwall);
#ifdef YAX_ENABLE
// TODO: slopes?
if (globalposz > sec->floorz && yax_isislandwall(wallnum, YAX_FLOOR))
{
for (x=x1; x<=x2; x++)
if (dplc[x] > umost[x] && umost[x] <= dmost[x])
{
umost[x] = dplc[x];
if (umost[x] > dmost[x]) numhits--;
}
}
else if (globalposz < sec->ceilingz && yax_isislandwall(wallnum, YAX_CEILING))
{
for (x=x1; x<=x2; x++)
if (uplc[x] < dmost[x] && umost[x] <= dmost[x])
{
dmost[x] = uplc[x];
if (umost[x] > dmost[x]) numhits--;
}
}
else
#endif
for (x=x1; x<=x2; x++)
if (umost[x] <= dmost[x])
{ umost[x] = 1; dmost[x] = 0; numhits--; }
smostwall[smostwallcnt] = z;
smostwalltype[smostwallcnt] = 0;
smostwallcnt++;
if ((searchit == 2) && (x1 <= searchx) && (searchx <= x2))
#ifdef YAX_ENABLE
if (uplc[searchx] <= searchy && searchy < dplc[searchx])
#endif
{
searchit = 1; searchsector = sectnum; searchbottomwall = searchwall = wallnum;
if (nextsectnum < 0) searchstat = 0; else searchstat = 4;
}
}
#ifdef ENGINE_SCREENSHOT_DEBUG
if (engine_screenshot)
# ifdef YAX_ENABLE
if (!g_nodraw)
# endif
{
static char fn[32], tmpbuf[80];
static char bakframe[MAXXDIM*MAXYDIM];
char purple = getclosestcol(63, 0, 63);
char yellow = getclosestcol(63, 63, 0);
begindrawing(); //{{{
Bmemcpy(bakframe, (char *)frameplace, xdim*ydim);
for (x=0; x<xdim; x++)
{
if (umost[x] > dmost[x])
{
*((char *)frameplace + (ydim/2)*bytesperline + x) = yellow;
*((char *)frameplace + (ydim/2+1)*bytesperline + x) = purple;
continue;
}
if (umost[x] >= 0 && umost[x] < ydim)
*((char *)frameplace + umost[x]*bytesperline + x) = purple;
if (dmost[x]-1 >= 0 && dmost[x]-1 < ydim)
*((char *)frameplace + (dmost[x]-1)*bytesperline + x) = yellow;
}
Bsprintf(tmpbuf, "nmp%d l%d b%d s%d w%d", yax_nomaskpass, yax_globallev-YAX_MAXDRAWS,
yax_globalbunch, sectnum, wallnum);
printext256(8,8, whitecol,0, tmpbuf, 0);
Bsprintf(fn, "engshot%04d.png", engine_screenshot);
screencapture(fn, 0, "BUILD engine");
engine_screenshot++;
Bmemcpy((char *)frameplace, bakframe, xdim*ydim);
enddrawing(); //}}}
}
#endif
}
}
//
// drawvox
//
static void drawvox(int32_t dasprx, int32_t daspry, int32_t dasprz, int32_t dasprang,
int32_t daxscale, int32_t dayscale, char daindex,
int8_t dashade, char dapal, const int32_t *daumost, const int32_t *dadmost)
{
int32_t i, j, k, x, y, syoff, ggxstart, ggystart, nxoff;
int32_t cosang, sinang, sprcosang, sprsinang, backx, backy, gxinc, gyinc;
int32_t daxsiz, daysiz, /*dazsiz,*/ daxpivot, daypivot, dazpivot;
int32_t daxscalerecip, dayscalerecip, cnt, gxstart, gystart, odayscale;
int32_t l1, l2, /*slabxoffs,*/ xyvoxoffs, *longptr;
intptr_t slabxoffs;
int32_t lx, rx, nx, ny, x1=0, y1=0, z1, x2=0, y2=0, z2, yplc, yinc=0;
int32_t yoff, xs=0, ys=0, xe, ye, xi=0, yi=0, cbackx, cbacky, dagxinc, dagyinc;
int16_t *shortptr;
char *voxptr, *voxend, *davoxptr, oand, oand16, oand32;
cosang = sintable[(globalang+512)&2047];
sinang = sintable[globalang&2047];
sprcosang = sintable[(dasprang+512)&2047];
sprsinang = sintable[dasprang&2047];
i = klabs(dmulscale6(dasprx-globalposx,cosang,daspry-globalposy,sinang));
j = (int32_t)(getpalookup((int32_t)mulscale21(globvis,i),(int32_t)dashade)<<8);
setupdrawslab(ylookup[1],FP_OFF(palookup[dapal])+j);
j = 1310720;
j *= min(daxscale,dayscale); j >>= 6; //New hacks (for sized-down voxels)
for (k=0; k<MAXVOXMIPS; k++)
{
if (i < j) { i = k; break; }
j <<= 1;
}
if (k >= MAXVOXMIPS) i = MAXVOXMIPS-1;
if (novoxmips) i = 0;
davoxptr = (char *)voxoff[daindex][i];
if (!davoxptr && i > 0) { davoxptr = (char *)voxoff[daindex][0]; i = 0; }
if (!davoxptr) return;
if (voxscale[daindex] == 65536)
{ daxscale <<= (i+8); dayscale <<= (i+8); }
else
{
daxscale = mulscale8(daxscale<<i,voxscale[daindex]);
dayscale = mulscale8(dayscale<<i,voxscale[daindex]);
}
odayscale = dayscale;
daxscale = mulscale16(daxscale,xyaspect);
daxscale = scale(daxscale,xdimenscale,xdimen<<8);
dayscale = scale(dayscale,mulscale16(xdimenscale,viewingrangerecip),xdimen<<8);
daxscalerecip = (1<<30)/daxscale;
dayscalerecip = (1<<30)/dayscale;
longptr = (int32_t *)davoxptr;
daxsiz = B_LITTLE32(longptr[0]); daysiz = B_LITTLE32(longptr[1]); //dazsiz = B_LITTLE32(longptr[2]);
daxpivot = B_LITTLE32(longptr[3]); daypivot = B_LITTLE32(longptr[4]); dazpivot = B_LITTLE32(longptr[5]);
davoxptr += (6<<2);
x = mulscale16(globalposx-dasprx,daxscalerecip);
y = mulscale16(globalposy-daspry,daxscalerecip);
backx = ((dmulscale10(x,sprcosang,y,sprsinang)+daxpivot)>>8);
backy = ((dmulscale10(y,sprcosang,x,-sprsinang)+daypivot)>>8);
cbackx = min(max(backx,0),daxsiz-1);
cbacky = min(max(backy,0),daysiz-1);
sprcosang = mulscale14(daxscale,sprcosang);
sprsinang = mulscale14(daxscale,sprsinang);
x = (dasprx-globalposx) - dmulscale18(daxpivot,sprcosang,daypivot,-sprsinang);
y = (daspry-globalposy) - dmulscale18(daypivot,sprcosang,daxpivot,sprsinang);
cosang = mulscale16(cosang,dayscalerecip);
sinang = mulscale16(sinang,dayscalerecip);
gxstart = y*cosang - x*sinang;
gystart = x*cosang + y*sinang;
gxinc = dmulscale10(sprsinang,cosang,sprcosang,-sinang);
gyinc = dmulscale10(sprcosang,cosang,sprsinang,sinang);
x = 0; y = 0; j = max(daxsiz,daysiz);
for (i=0; i<=j; i++)
{
ggxinc[i] = x; x += gxinc;
ggyinc[i] = y; y += gyinc;
}
if ((klabs(globalposz-dasprz)>>10) >= klabs(odayscale)) return;
syoff = divscale21(globalposz-dasprz,odayscale) + (dazpivot<<7);
yoff = ((klabs(gxinc)+klabs(gyinc))>>1);
longptr = (int32_t *)davoxptr;
xyvoxoffs = ((daxsiz+1)<<2);
begindrawing(); //{{{
for (cnt=0; cnt<8; cnt++)
{
switch (cnt)
{
case 0:
xs = 0; ys = 0; xi = 1; yi = 1; break;
case 1:
xs = daxsiz-1; ys = 0; xi = -1; yi = 1; break;
case 2:
xs = 0; ys = daysiz-1; xi = 1; yi = -1; break;
case 3:
xs = daxsiz-1; ys = daysiz-1; xi = -1; yi = -1; break;
case 4:
xs = 0; ys = cbacky; xi = 1; yi = 2; break;
case 5:
xs = daxsiz-1; ys = cbacky; xi = -1; yi = 2; break;
case 6:
xs = cbackx; ys = 0; xi = 2; yi = 1; break;
case 7:
xs = cbackx; ys = daysiz-1; xi = 2; yi = -1; break;
}
xe = cbackx; ye = cbacky;
if (cnt < 4)
{
if ((xi < 0) && (xe >= xs)) continue;
if ((xi > 0) && (xe <= xs)) continue;
if ((yi < 0) && (ye >= ys)) continue;
if ((yi > 0) && (ye <= ys)) continue;
}
else
{
if ((xi < 0) && (xe > xs)) continue;
if ((xi > 0) && (xe < xs)) continue;
if ((yi < 0) && (ye > ys)) continue;
if ((yi > 0) && (ye < ys)) continue;
xe += xi; ye += yi;
}
i = ksgn(ys-backy)+ksgn(xs-backx)*3+4;
switch (i)
{
case 6:
case 7:
x1 = 0; y1 = 0; break;
case 8:
case 5:
x1 = gxinc; y1 = gyinc; break;
case 0:
case 3:
x1 = gyinc; y1 = -gxinc; break;
case 2:
case 1:
x1 = gxinc+gyinc; y1 = gyinc-gxinc; break;
}
switch (i)
{
case 2:
case 5:
x2 = 0; y2 = 0; break;
case 0:
case 1:
x2 = gxinc; y2 = gyinc; break;
case 8:
case 7:
x2 = gyinc; y2 = -gxinc; break;
case 6:
case 3:
x2 = gxinc+gyinc; y2 = gyinc-gxinc; break;
}
oand = pow2char[(xs<backx)+0]+pow2char[(ys<backy)+2];
oand16 = oand+16;
oand32 = oand+32;
if (yi > 0) { dagxinc = gxinc; dagyinc = mulscale16(gyinc,viewingrangerecip); }
else { dagxinc = -gxinc; dagyinc = -mulscale16(gyinc,viewingrangerecip); }
//Fix for non 90 degree viewing ranges
nxoff = mulscale16(x2-x1,viewingrangerecip);
x1 = mulscale16(x1,viewingrangerecip);
ggxstart = gxstart+ggyinc[ys];
ggystart = gystart-ggxinc[ys];
for (x=xs; x!=xe; x+=xi)
{
slabxoffs = (intptr_t)&davoxptr[B_LITTLE32(longptr[x])];
shortptr = (int16_t *)&davoxptr[((x*(daysiz+1))<<1)+xyvoxoffs];
nx = mulscale16(ggxstart+ggxinc[x],viewingrangerecip)+x1;
ny = ggystart+ggyinc[x];
for (y=ys; y!=ye; y+=yi,nx+=dagyinc,ny-=dagxinc)
{
if ((ny <= nytooclose) || (ny >= nytoofar)) continue;
voxptr = (char *)(B_LITTLE16(shortptr[y])+slabxoffs);
voxend = (char *)(B_LITTLE16(shortptr[y+1])+slabxoffs);
if (voxptr == voxend) continue;
// AMCTC V1 MEGABASE: (ny+y1)>>14 == 65547
// (after long corridor with the blinds)
lx = mulscale32(nx>>3,distrecip[(ny+y1)>>14])+halfxdimen;
if (lx < 0) lx = 0;
rx = mulscale32((nx+nxoff)>>3,distrecip[(ny+y2)>>14])+halfxdimen;
if (rx > xdimen) rx = xdimen;
if (rx <= lx) continue;
rx -= lx;
l1 = distrecip[(ny-yoff)>>14];
// FIXME! AMCTC RC2/beta shotgun voxel
// (e.g. training map right after M16 shooting):
l2 = clamp((ny+yoff)>>14, 0, 65535);
l2 = distrecip[l2];
for (; voxptr<voxend; voxptr+=voxptr[1]+3)
{
j = (voxptr[0]<<15)-syoff;
if (j < 0)
{
k = j+(voxptr[1]<<15);
if (k < 0)
{
if ((voxptr[2]&oand32) == 0) continue;
z2 = mulscale32(l2,k) + globalhoriz; //Below slab
}
else
{
if ((voxptr[2]&oand) == 0) continue; //Middle of slab
z2 = mulscale32(l1,k) + globalhoriz;
}
z1 = mulscale32(l1,j) + globalhoriz;
}
else
{
if ((voxptr[2]&oand16) == 0) continue;
z1 = mulscale32(l2,j) + globalhoriz; //Above slab
z2 = mulscale32(l1,j+(voxptr[1]<<15)) + globalhoriz;
}
if (voxptr[1] == 1)
{
yplc = 0; yinc = 0;
if (z1 < daumost[lx]) z1 = daumost[lx];
}
else
{
if (z2-z1 >= 1024) yinc = divscale16(voxptr[1],z2-z1);
else if (z2 > z1) yinc = (lowrecip[z2-z1]*voxptr[1]>>8);
if (z1 < daumost[lx]) { yplc = yinc*(daumost[lx]-z1); z1 = daumost[lx]; }
else yplc = 0;
}
if (z2 > dadmost[lx]) z2 = dadmost[lx];
z2 -= z1; if (z2 <= 0) continue;
drawslab(rx,yplc,z2,yinc,(intptr_t)&voxptr[3],ylookup[z1]+lx+frameoffset);
}
}
}
}
#if 0
for (x=0; x<xdimen; x++)
{
if (daumost[x]>=0 && daumost[x]<ydimen)
*(char *)(frameplace + x + bytesperline*daumost[x]) = editorcolors[13];
if (dadmost[x]>=0 && dadmost[x]<ydimen)
*(char *)(frameplace + x + bytesperline*dadmost[x]) = editorcolors[14];
}
#endif
enddrawing(); //}}}
}
//
// drawsprite (internal)
//
static void drawsprite(int32_t snum)
{
spritetype *tspr;
sectortype *sec;
int32_t startum, startdm, sectnum, xb, yp, cstat;
int32_t siz, xsiz, ysiz, xoff, yoff, xspan, yspan;
int32_t x1, y1, x2, y2, lx, rx, dalx2, darx2, i, j, k, x, linum, linuminc;
int32_t yinc, z, z1, z2, xp1, yp1, xp2, yp2;
int32_t xv, yv, top, topinc, bot, botinc, hplc, hinc;
int32_t cosang, sinang, dax, day, lpoint, lmax, rpoint, rmax, dax1, dax2, y;
int32_t npoints, npoints2, zz, t, zsgn, zzsgn, *longptr;
int32_t tilenum, vtilenum = 0, spritenum;
char swapped, daclip;
//============================================================================= //POLYMOST BEGINS
#ifdef USE_OPENGL
if (rendmode == 3)
{
polymost_drawsprite(snum);
bglDisable(GL_POLYGON_OFFSET_FILL);
return;
}
# ifdef POLYMER
if (rendmode == 4)
{
bglEnable(GL_ALPHA_TEST);
bglEnable(GL_BLEND);
polymer_drawsprite(snum);
bglDisable(GL_BLEND);
bglDisable(GL_ALPHA_TEST);
return;
}
# endif
#endif
//============================================================================= //POLYMOST ENDS
tspr = tspriteptr[snum];
xb = spritesx[snum];
yp = spritesy[snum];
tilenum = tspr->picnum;
spritenum = tspr->owner;
cstat = tspr->cstat;
if (tilenum < 0 || tilenum >= MAXSPRITES) return;
if ((cstat&48)==48) vtilenum = tilenum; // if the game wants voxels, it gets voxels
else if ((cstat&48)!=48 && (usevoxels) && (tiletovox[tilenum] != -1)
#ifdef USE_OPENGL
&& (!(spriteext[tspr->owner].flags&SPREXT_NOTMD))
#endif
)
{
vtilenum = tiletovox[tilenum];
cstat |= 48;
}
if ((cstat&48) != 48)
{
if (picanm[tilenum]&192) tilenum += animateoffs(tilenum,spritenum+32768);
if ((tilesizx[tilenum] <= 0) || (tilesizy[tilenum] <= 0) || (spritenum < 0))
return;
}
if ((tspr->xrepeat <= 0) || (tspr->yrepeat <= 0)) return;
sectnum = tspr->sectnum; sec = &sector[sectnum];
globalpal = tspr->pal;
if (palookup[globalpal] == NULL) globalpal = 0; // JBF: fixes null-pointer crash
globalshade = tspr->shade;
if (cstat&2)
{
if (cstat&512) settransreverse(); else settransnormal();
}
xoff = (int32_t)((int8_t)((picanm[tilenum]>>8)&255))+((int32_t)tspr->xoffset);
yoff = (int32_t)((int8_t)((picanm[tilenum]>>16)&255))+((int32_t)tspr->yoffset);
if ((cstat&48) == 0)
{
if (yp <= (4<<8)) return;
siz = divscale19(xdimenscale,yp);
xv = mulscale16(((int32_t)tspr->xrepeat)<<16,xyaspect);
xspan = tilesizx[tilenum];
yspan = tilesizy[tilenum];
xsiz = mulscale30(siz,xv*xspan);
ysiz = mulscale14(siz,tspr->yrepeat*yspan);
if (((tilesizx[tilenum]>>11) >= xsiz) || (yspan >= (ysiz>>1)))
return; //Watch out for divscale overflow
x1 = xb-(xsiz>>1);
if (xspan&1) x1 += mulscale31(siz,xv); //Odd xspans
i = mulscale30(siz,xv*xoff);
if ((cstat&4) == 0) x1 -= i; else x1 += i;
y1 = mulscale16(tspr->z-globalposz,siz);
y1 -= mulscale14(siz,tspr->yrepeat*yoff);
y1 += (globalhoriz<<8)-ysiz;
if (cstat&128)
{
y1 += (ysiz>>1);
if (yspan&1) y1 += mulscale15(siz,tspr->yrepeat); //Odd yspans
}
x2 = x1+xsiz-1;
y2 = y1+ysiz-1;
if ((y1|255) >= (y2|255)) return;
lx = (x1>>8)+1; if (lx < 0) lx = 0;
rx = (x2>>8); if (rx >= xdimen) rx = xdimen-1;
if (lx > rx) return;
yinc = divscale32(yspan,ysiz);
if ((sec->ceilingstat&3) == 0)
startum = globalhoriz+mulscale24(siz,sec->ceilingz-globalposz)-1;
else
startum = 0;
if ((sec->floorstat&3) == 0)
startdm = globalhoriz+mulscale24(siz,sec->floorz-globalposz)+1;
else
startdm = INT32_MAX;
if ((y1>>8) > startum) startum = (y1>>8);
if ((y2>>8) < startdm) startdm = (y2>>8);
if (startum < -32768) startum = -32768;
if (startdm > 32767) startdm = 32767;
if (startum >= startdm) return;
if ((cstat&4) == 0)
{
linuminc = divscale24(xspan,xsiz);
linum = mulscale8((lx<<8)-x1,linuminc);
}
else
{
linuminc = -divscale24(xspan,xsiz);
linum = mulscale8((lx<<8)-x2,linuminc);
}
if ((cstat&8) > 0)
{
yinc = -yinc;
i = y1; y1 = y2; y2 = i;
}
for (x=lx; x<=rx; x++)
{
uwall[x] = max(startumost[x+windowx1]-windowy1,(int16_t)startum);
dwall[x] = min(startdmost[x+windowx1]-windowy1,(int16_t)startdm);
}
daclip = 0;
for (i=smostwallcnt-1; i>=0; i--)
{
if (smostwalltype[i]&daclip) continue;
j = smostwall[i];
if ((xb1[j] > rx) || (xb2[j] < lx)) continue;
if ((yp <= yb1[j]) && (yp <= yb2[j])) continue;
if (spritewallfront(tspr,(int32_t)thewall[j]) && ((yp <= yb1[j]) || (yp <= yb2[j]))) continue;
dalx2 = max(xb1[j],lx); darx2 = min(xb2[j],rx);
switch (smostwalltype[i])
{
case 0:
if (dalx2 <= darx2)
{
if ((dalx2 == lx) && (darx2 == rx)) return;
//clearbufbyte(&dwall[dalx2],(darx2-dalx2+1)*sizeof(dwall[0]),0L);
for (k=dalx2; k<=darx2; k++) dwall[k] = 0;
}
break;
case 1:
k = smoststart[i] - xb1[j];
for (x=dalx2; x<=darx2; x++)
if (smost[k+x] > uwall[x]) uwall[x] = smost[k+x];
if ((dalx2 == lx) && (darx2 == rx)) daclip |= 1;
break;
case 2:
k = smoststart[i] - xb1[j];
for (x=dalx2; x<=darx2; x++)
if (smost[k+x] < dwall[x]) dwall[x] = smost[k+x];
if ((dalx2 == lx) && (darx2 == rx)) daclip |= 2;
break;
}
}
if (uwall[rx] >= dwall[rx])
{
for (x=lx; x<rx; x++)
if (uwall[x] < dwall[x]) break;
if (x == rx) return;
}
//sprite
#ifdef YAX_ENABLE
if (yax_globallev==YAX_MAXDRAWS || searchit==2)
#endif
if ((searchit >= 1) && (searchx >= lx) && (searchx <= rx))
if ((searchy >= uwall[searchx]) && (searchy < dwall[searchx]))
{
searchsector = sectnum; searchwall = spritenum;
searchstat = 3; searchit = 1;
}
z2 = tspr->z - ((yoff*tspr->yrepeat)<<2);
if (cstat&128)
{
z2 += ((yspan*tspr->yrepeat)<<1);
if (yspan&1) z2 += (tspr->yrepeat<<1); //Odd yspans
}
z1 = z2 - ((yspan*tspr->yrepeat)<<2);
globalorientation = 0;
globalpicnum = tilenum;
if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0;
globalxpanning = 0L;
globalypanning = 0L;
globvis = globalvisibility;
if (sec->visibility != 0) globvis = mulscale4(globvis,(int32_t)((uint8_t)(sec->visibility+16)));
globalshiftval = (picsiz[globalpicnum]>>4);
if (pow2long[globalshiftval] != tilesizy[globalpicnum]) globalshiftval++;
globalshiftval = 32-globalshiftval;
globalyscale = divscale(512,tspr->yrepeat,globalshiftval-19);
globalzd = (((globalposz-z1)*globalyscale)<<8);
if ((cstat&8) > 0)
{
globalyscale = -globalyscale;
globalzd = (((globalposz-z2)*globalyscale)<<8);
}
qinterpolatedown16((intptr_t)&lwall[lx],rx-lx+1,linum,linuminc);
clearbuf(&swall[lx],rx-lx+1,mulscale19(yp,xdimscale));
if ((cstat&2) == 0)
maskwallscan(lx,rx,uwall,dwall,swall,lwall);
else
transmaskwallscan(lx,rx);
}
else if ((cstat&48) == 16)
{
if ((cstat&4) > 0) xoff = -xoff;
if ((cstat&8) > 0) yoff = -yoff;
xspan = tilesizx[tilenum]; yspan = tilesizy[tilenum];
xv = tspr->xrepeat*sintable[(tspr->ang+2560+1536)&2047];
yv = tspr->xrepeat*sintable[(tspr->ang+2048+1536)&2047];
i = (xspan>>1)+xoff;
x1 = tspr->x-globalposx-mulscale16(xv,i); x2 = x1+mulscale16(xv,xspan);
y1 = tspr->y-globalposy-mulscale16(yv,i); y2 = y1+mulscale16(yv,xspan);
yp1 = dmulscale6(x1,cosviewingrangeglobalang,y1,sinviewingrangeglobalang);
yp2 = dmulscale6(x2,cosviewingrangeglobalang,y2,sinviewingrangeglobalang);
if ((yp1 <= 0) && (yp2 <= 0)) return;
xp1 = dmulscale6(y1,cosglobalang,-x1,singlobalang);
xp2 = dmulscale6(y2,cosglobalang,-x2,singlobalang);
x1 += globalposx; y1 += globalposy;
x2 += globalposx; y2 += globalposy;
swapped = 0;
if (dmulscale32(xp1,yp2,-xp2,yp1) >= 0) //If wall's NOT facing you
{
if ((cstat&64) != 0) return;
i = xp1, xp1 = xp2, xp2 = i;
i = yp1, yp1 = yp2, yp2 = i;
i = x1, x1 = x2, x2 = i;
i = y1, y1 = y2, y2 = i;
swapped = 1;
}
if (xp1 >= -yp1)
{
if (xp1 > yp1) return;
if (yp1 == 0) return;
xb1[MAXWALLSB-1] = halfxdimen + scale(xp1,halfxdimen,yp1);
if (xp1 >= 0) xb1[MAXWALLSB-1]++; //Fix for SIGNED divide
if (xb1[MAXWALLSB-1] >= xdimen) xb1[MAXWALLSB-1] = xdimen-1;
yb1[MAXWALLSB-1] = yp1;
}
else
{
if (xp2 < -yp2) return;
xb1[MAXWALLSB-1] = 0;
i = yp1-yp2+xp1-xp2;
if (i == 0) return;
yb1[MAXWALLSB-1] = yp1 + scale(yp2-yp1,xp1+yp1,i);
}
if (xp2 <= yp2)
{
if (xp2 < -yp2) return;
if (yp2 == 0) return;
xb2[MAXWALLSB-1] = halfxdimen + scale(xp2,halfxdimen,yp2) - 1;
if (xp2 >= 0) xb2[MAXWALLSB-1]++; //Fix for SIGNED divide
if (xb2[MAXWALLSB-1] >= xdimen) xb2[MAXWALLSB-1] = xdimen-1;
yb2[MAXWALLSB-1] = yp2;
}
else
{
if (xp1 > yp1) return;
xb2[MAXWALLSB-1] = xdimen-1;
i = xp2-xp1+yp1-yp2;
if (i == 0) return;
yb2[MAXWALLSB-1] = yp1 + scale(yp2-yp1,yp1-xp1,i);
}
if ((yb1[MAXWALLSB-1] < 256) || (yb2[MAXWALLSB-1] < 256) || (xb1[MAXWALLSB-1] > xb2[MAXWALLSB-1]))
return;
topinc = -mulscale10(yp1,xspan);
top = (((mulscale10(xp1,xdimen) - mulscale9(xb1[MAXWALLSB-1]-halfxdimen,yp1))*xspan)>>3);
botinc = ((yp2-yp1)>>8);
bot = mulscale11(xp1-xp2,xdimen) + mulscale2(xb1[MAXWALLSB-1]-halfxdimen,botinc);
j = xb2[MAXWALLSB-1]+3;
z = mulscale20(top,krecipasm(bot));
lwall[xb1[MAXWALLSB-1]] = (z>>8);
for (x=xb1[MAXWALLSB-1]+4; x<=j; x+=4)
{
top += topinc; bot += botinc;
zz = z; z = mulscale20(top,krecipasm(bot));
lwall[x] = (z>>8);
i = ((z+zz)>>1);
lwall[x-2] = (i>>8);
lwall[x-3] = ((i+zz)>>9);
lwall[x-1] = ((i+z)>>9);
}
if (lwall[xb1[MAXWALLSB-1]] < 0) lwall[xb1[MAXWALLSB-1]] = 0;
if (lwall[xb2[MAXWALLSB-1]] >= xspan) lwall[xb2[MAXWALLSB-1]] = xspan-1;
if ((swapped^((cstat&4)>0)) > 0)
{
j = xspan-1;
for (x=xb1[MAXWALLSB-1]; x<=xb2[MAXWALLSB-1]; x++)
lwall[x] = j-lwall[x];
}
rx1[MAXWALLSB-1] = xp1; ry1[MAXWALLSB-1] = yp1;
rx2[MAXWALLSB-1] = xp2; ry2[MAXWALLSB-1] = yp2;
hplc = divscale19(xdimenscale,yb1[MAXWALLSB-1]);
hinc = divscale19(xdimenscale,yb2[MAXWALLSB-1]);
hinc = (hinc-hplc)/(xb2[MAXWALLSB-1]-xb1[MAXWALLSB-1]+1);
z2 = tspr->z - ((yoff*tspr->yrepeat)<<2);
if (cstat&128)
{
z2 += ((yspan*tspr->yrepeat)<<1);
if (yspan&1) z2 += (tspr->yrepeat<<1); //Odd yspans
}
z1 = z2 - ((yspan*tspr->yrepeat)<<2);
globalorientation = 0;
globalpicnum = tilenum;
if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0;
globalxpanning = 0L;
globalypanning = 0L;
globvis = globalvisibility;
if (sec->visibility != 0) globvis = mulscale4(globvis,(int32_t)((uint8_t)(sec->visibility+16)));
globalshiftval = (picsiz[globalpicnum]>>4);
if (pow2long[globalshiftval] != tilesizy[globalpicnum]) globalshiftval++;
globalshiftval = 32-globalshiftval;
globalyscale = divscale(512,tspr->yrepeat,globalshiftval-19);
globalzd = (((globalposz-z1)*globalyscale)<<8);
if ((cstat&8) > 0)
{
globalyscale = -globalyscale;
globalzd = (((globalposz-z2)*globalyscale)<<8);
}
if (((sec->ceilingstat&1) == 0) && (z1 < sec->ceilingz))
z1 = sec->ceilingz;
if (((sec->floorstat&1) == 0) && (z2 > sec->floorz))
z2 = sec->floorz;
owallmost(uwall,(int32_t)(MAXWALLSB-1),z1-globalposz);
owallmost(dwall,(int32_t)(MAXWALLSB-1),z2-globalposz);
for (i=xb1[MAXWALLSB-1]; i<=xb2[MAXWALLSB-1]; i++)
{ swall[i] = (krecipasm(hplc)<<2); hplc += hinc; }
for (i=smostwallcnt-1; i>=0; i--)
{
j = smostwall[i];
if ((xb1[j] > xb2[MAXWALLSB-1]) || (xb2[j] < xb1[MAXWALLSB-1])) continue;
dalx2 = xb1[j]; darx2 = xb2[j];
if (max(yb1[MAXWALLSB-1],yb2[MAXWALLSB-1]) > min(yb1[j],yb2[j]))
{
if (min(yb1[MAXWALLSB-1],yb2[MAXWALLSB-1]) > max(yb1[j],yb2[j]))
{
x = INT32_MIN;
}
else
{
x = thewall[j]; xp1 = wall[x].x; yp1 = wall[x].y;
x = wall[x].point2; xp2 = wall[x].x; yp2 = wall[x].y;
z1 = (xp2-xp1)*(y1-yp1) - (yp2-yp1)*(x1-xp1);
z2 = (xp2-xp1)*(y2-yp1) - (yp2-yp1)*(x2-xp1);
if ((z1^z2) >= 0)
x = (z1+z2);
else
{
z1 = (x2-x1)*(yp1-y1) - (y2-y1)*(xp1-x1);
z2 = (x2-x1)*(yp2-y1) - (y2-y1)*(xp2-x1);
if ((z1^z2) >= 0)
x = -(z1+z2);
else
{
if ((xp2-xp1)*(tspr->y-yp1) == (tspr->x-xp1)*(yp2-yp1))
{
if (wall[thewall[j]].nextsector == tspr->sectnum)
x = INT32_MIN;
else
x = INT32_MAX;
}
else
{
//INTERSECTION!
x = (xp1-globalposx) + scale(xp2-xp1,z1,z1-z2);
y = (yp1-globalposy) + scale(yp2-yp1,z1,z1-z2);
yp1 = dmulscale14(x,cosviewingrangeglobalang,y,sinviewingrangeglobalang);
if (yp1 > 0)
{
xp1 = dmulscale14(y,cosglobalang,-x,singlobalang);
x = halfxdimen + scale(xp1,halfxdimen,yp1);
if (xp1 >= 0) x++; //Fix for SIGNED divide
if (z1 < 0)
{ if (dalx2 < x) dalx2 = x; }
else
{ if (darx2 > x) darx2 = x; }
x = INT32_MIN+1;
}
else
x = INT32_MAX;
}
}
}
}
if (x < 0)
{
if (dalx2 < xb1[MAXWALLSB-1]) dalx2 = xb1[MAXWALLSB-1];
if (darx2 > xb2[MAXWALLSB-1]) darx2 = xb2[MAXWALLSB-1];
switch (smostwalltype[i])
{
case 0:
if (dalx2 <= darx2)
{
if ((dalx2 == xb1[MAXWALLSB-1]) && (darx2 == xb2[MAXWALLSB-1])) return;
//clearbufbyte(&dwall[dalx2],(darx2-dalx2+1)*sizeof(dwall[0]),0L);
for (k=dalx2; k<=darx2; k++) dwall[k] = 0;
}
break;
case 1:
k = smoststart[i] - xb1[j];
for (x=dalx2; x<=darx2; x++)
if (smost[k+x] > uwall[x]) uwall[x] = smost[k+x];
break;
case 2:
k = smoststart[i] - xb1[j];
for (x=dalx2; x<=darx2; x++)
if (smost[k+x] < dwall[x]) dwall[x] = smost[k+x];
break;
}
}
}
}
//sprite
#ifdef YAX_ENABLE
if (yax_globallev==YAX_MAXDRAWS || searchit==2)
#endif
if ((searchit >= 1) && (searchx >= xb1[MAXWALLSB-1]) && (searchx <= xb2[MAXWALLSB-1]))
if ((searchy >= uwall[searchx]) && (searchy <= dwall[searchx]))
{
searchsector = sectnum; searchwall = spritenum;
searchstat = 3; searchit = 1;
}
if ((cstat&2) == 0)
{
maskwallscan(xb1[MAXWALLSB-1],xb2[MAXWALLSB-1],uwall,dwall,swall,lwall);
}
else
{
transmaskwallscan(xb1[MAXWALLSB-1],xb2[MAXWALLSB-1]);
}
}
else if ((cstat&48) == 32)
{
if ((cstat&64) != 0)
if ((globalposz > tspr->z) == ((cstat&8)==0))
return;
if ((cstat&4) > 0) xoff = -xoff;
if ((cstat&8) > 0) yoff = -yoff;
xspan = tilesizx[tilenum];
yspan = tilesizy[tilenum];
//Rotate center point
dax = tspr->x-globalposx;
day = tspr->y-globalposy;
rzi[0] = dmulscale10(cosglobalang,dax,singlobalang,day);
rxi[0] = dmulscale10(cosglobalang,day,-singlobalang,dax);
//Get top-left corner
i = ((tspr->ang+2048-globalang)&2047);
cosang = sintable[(i+512)&2047]; sinang = sintable[i];
dax = ((xspan>>1)+xoff)*tspr->xrepeat;
day = ((yspan>>1)+yoff)*tspr->yrepeat;
rzi[0] += dmulscale12(sinang,dax,cosang,day);
rxi[0] += dmulscale12(sinang,day,-cosang,dax);
//Get other 3 corners
dax = xspan*tspr->xrepeat;
day = yspan*tspr->yrepeat;
rzi[1] = rzi[0]-mulscale12(sinang,dax);
rxi[1] = rxi[0]+mulscale12(cosang,dax);
dax = -mulscale12(cosang,day);
day = -mulscale12(sinang,day);
rzi[2] = rzi[1]+dax; rxi[2] = rxi[1]+day;
rzi[3] = rzi[0]+dax; rxi[3] = rxi[0]+day;
//Put all points on same z
ryi[0] = scale((tspr->z-globalposz),yxaspect,320<<8);
if (ryi[0] == 0) return;
ryi[1] = ryi[2] = ryi[3] = ryi[0];
if ((cstat&4) == 0)
{ z = 0; z1 = 1; z2 = 3; }
else
{ z = 1; z1 = 0; z2 = 2; }
dax = rzi[z1]-rzi[z]; day = rxi[z1]-rxi[z];
bot = dmulscale8(dax,dax,day,day);
if (((klabs(dax)>>13) >= bot) || ((klabs(day)>>13) >= bot)) return;
globalx1 = divscale18(dax,bot);
globalx2 = divscale18(day,bot);
dax = rzi[z2]-rzi[z]; day = rxi[z2]-rxi[z];
bot = dmulscale8(dax,dax,day,day);
if (((klabs(dax)>>13) >= bot) || ((klabs(day)>>13) >= bot)) return;
globaly1 = divscale18(dax,bot);
globaly2 = divscale18(day,bot);
//Calculate globals for hline texture mapping function
globalxpanning = (rxi[z]<<12);
globalypanning = (rzi[z]<<12);
globalzd = (ryi[z]<<12);
rzi[0] = mulscale16(rzi[0],viewingrange);
rzi[1] = mulscale16(rzi[1],viewingrange);
rzi[2] = mulscale16(rzi[2],viewingrange);
rzi[3] = mulscale16(rzi[3],viewingrange);
if (ryi[0] < 0) //If ceilsprite is above you, reverse order of points
{
i = rxi[1]; rxi[1] = rxi[3]; rxi[3] = i;
i = rzi[1]; rzi[1] = rzi[3]; rzi[3] = i;
}
//Clip polygon in 3-space
npoints = 4;
//Clip edge 1
npoints2 = 0;
zzsgn = rxi[0]+rzi[0];
for (z=0; z<npoints; z++)
{
zz = z+1; if (zz == npoints) zz = 0;
zsgn = zzsgn; zzsgn = rxi[zz]+rzi[zz];
if (zsgn >= 0)
{
rxi2[npoints2] = rxi[z]; ryi2[npoints2] = ryi[z]; rzi2[npoints2] = rzi[z];
npoints2++;
}
if ((zsgn^zzsgn) < 0)
{
t = divscale30(zsgn,zsgn-zzsgn);
rxi2[npoints2] = rxi[z] + mulscale30(t,rxi[zz]-rxi[z]);
ryi2[npoints2] = ryi[z] + mulscale30(t,ryi[zz]-ryi[z]);
rzi2[npoints2] = rzi[z] + mulscale30(t,rzi[zz]-rzi[z]);
npoints2++;
}
}
if (npoints2 <= 2) return;
//Clip edge 2
npoints = 0;
zzsgn = rxi2[0]-rzi2[0];
for (z=0; z<npoints2; z++)
{
zz = z+1; if (zz == npoints2) zz = 0;
zsgn = zzsgn; zzsgn = rxi2[zz]-rzi2[zz];
if (zsgn <= 0)
{
rxi[npoints] = rxi2[z]; ryi[npoints] = ryi2[z]; rzi[npoints] = rzi2[z];
npoints++;
}
if ((zsgn^zzsgn) < 0)
{
t = divscale30(zsgn,zsgn-zzsgn);
rxi[npoints] = rxi2[z] + mulscale30(t,rxi2[zz]-rxi2[z]);
ryi[npoints] = ryi2[z] + mulscale30(t,ryi2[zz]-ryi2[z]);
rzi[npoints] = rzi2[z] + mulscale30(t,rzi2[zz]-rzi2[z]);
npoints++;
}
}
if (npoints <= 2) return;
//Clip edge 3
npoints2 = 0;
zzsgn = ryi[0]*halfxdimen + (rzi[0]*(globalhoriz-0));
for (z=0; z<npoints; z++)
{
zz = z+1; if (zz == npoints) zz = 0;
zsgn = zzsgn; zzsgn = ryi[zz]*halfxdimen + (rzi[zz]*(globalhoriz-0));
if (zsgn >= 0)
{
rxi2[npoints2] = rxi[z];
ryi2[npoints2] = ryi[z];
rzi2[npoints2] = rzi[z];
npoints2++;
}
if ((zsgn^zzsgn) < 0)
{
t = divscale30(zsgn,zsgn-zzsgn);
rxi2[npoints2] = rxi[z] + mulscale30(t,rxi[zz]-rxi[z]);
ryi2[npoints2] = ryi[z] + mulscale30(t,ryi[zz]-ryi[z]);
rzi2[npoints2] = rzi[z] + mulscale30(t,rzi[zz]-rzi[z]);
npoints2++;
}
}
if (npoints2 <= 2) return;
//Clip edge 4
npoints = 0;
zzsgn = ryi2[0]*halfxdimen + (rzi2[0]*(globalhoriz-ydimen));
for (z=0; z<npoints2; z++)
{
zz = z+1; if (zz == npoints2) zz = 0;
zsgn = zzsgn; zzsgn = ryi2[zz]*halfxdimen + (rzi2[zz]*(globalhoriz-ydimen));
if (zsgn <= 0)
{
rxi[npoints] = rxi2[z];
ryi[npoints] = ryi2[z];
rzi[npoints] = rzi2[z];
npoints++;
}
if ((zsgn^zzsgn) < 0)
{
t = divscale30(zsgn,zsgn-zzsgn);
rxi[npoints] = rxi2[z] + mulscale30(t,rxi2[zz]-rxi2[z]);
ryi[npoints] = ryi2[z] + mulscale30(t,ryi2[zz]-ryi2[z]);
rzi[npoints] = rzi2[z] + mulscale30(t,rzi2[zz]-rzi2[z]);
npoints++;
}
}
if (npoints <= 2) return;
//Project onto screen
lpoint = -1; lmax = INT32_MAX;
rpoint = -1; rmax = INT32_MIN;
for (z=0; z<npoints; z++)
{
xsi[z] = scale(rxi[z],xdimen<<15,rzi[z]) + (xdimen<<15);
ysi[z] = scale(ryi[z],xdimen<<15,rzi[z]) + (globalhoriz<<16);
if (xsi[z] < 0) xsi[z] = 0;
if (xsi[z] > (xdimen<<16)) xsi[z] = (xdimen<<16);
if (ysi[z] < ((int32_t)0<<16)) ysi[z] = ((int32_t)0<<16);
if (ysi[z] > ((int32_t)ydimen<<16)) ysi[z] = ((int32_t)ydimen<<16);
if (xsi[z] < lmax) lmax = xsi[z], lpoint = z;
if (xsi[z] > rmax) rmax = xsi[z], rpoint = z;
}
//Get uwall arrays
for (z=lpoint; z!=rpoint; z=zz)
{
zz = z+1; if (zz == npoints) zz = 0;
dax1 = ((xsi[z]+65535)>>16);
dax2 = ((xsi[zz]+65535)>>16);
if (dax2 > dax1)
{
yinc = divscale16(ysi[zz]-ysi[z],xsi[zz]-xsi[z]);
y = ysi[z] + mulscale16((dax1<<16)-xsi[z],yinc);
qinterpolatedown16short((intptr_t)(&uwall[dax1]),dax2-dax1,y,yinc);
}
}
//Get dwall arrays
for (; z!=lpoint; z=zz)
{
zz = z+1; if (zz == npoints) zz = 0;
dax1 = ((xsi[zz]+65535)>>16);
dax2 = ((xsi[z]+65535)>>16);
if (dax2 > dax1)
{
yinc = divscale16(ysi[zz]-ysi[z],xsi[zz]-xsi[z]);
y = ysi[zz] + mulscale16((dax1<<16)-xsi[zz],yinc);
qinterpolatedown16short((intptr_t)(&dwall[dax1]),dax2-dax1,y,yinc);
}
}
lx = ((lmax+65535)>>16);
rx = ((rmax+65535)>>16);
for (x=lx; x<=rx; x++)
{
uwall[x] = max(uwall[x],startumost[x+windowx1]-windowy1);
dwall[x] = min(dwall[x],startdmost[x+windowx1]-windowy1);
}
//Additional uwall/dwall clipping goes here
for (i=smostwallcnt-1; i>=0; i--)
{
j = smostwall[i];
if ((xb1[j] > rx) || (xb2[j] < lx)) continue;
if ((yp <= yb1[j]) && (yp <= yb2[j])) continue;
//if (spritewallfront(tspr,thewall[j]) == 0)
x = thewall[j]; xp1 = wall[x].x; yp1 = wall[x].y;
x = wall[x].point2; xp2 = wall[x].x; yp2 = wall[x].y;
x = (xp2-xp1)*(tspr->y-yp1)-(tspr->x-xp1)*(yp2-yp1);
if ((yp > yb1[j]) && (yp > yb2[j])) x = -1;
if ((x >= 0) && ((x != 0) || (wall[thewall[j]].nextsector != tspr->sectnum))) continue;
dalx2 = max(xb1[j],lx); darx2 = min(xb2[j],rx);
switch (smostwalltype[i])
{
case 0:
if (dalx2 <= darx2)
{
if ((dalx2 == lx) && (darx2 == rx)) return;
//clearbufbyte(&dwall[dalx2],(darx2-dalx2+1)*sizeof(dwall[0]),0L);
for (x=dalx2; x<=darx2; x++) dwall[x] = 0;
}
break;
case 1:
k = smoststart[i] - xb1[j];
for (x=dalx2; x<=darx2; x++)
if (smost[k+x] > uwall[x]) uwall[x] = smost[k+x];
break;
case 2:
k = smoststart[i] - xb1[j];
for (x=dalx2; x<=darx2; x++)
if (smost[k+x] < dwall[x]) dwall[x] = smost[k+x];
break;
}
}
//sprite
#ifdef YAX_ENABLE
if (yax_globallev==YAX_MAXDRAWS || searchit==2)
#endif
if ((searchit >= 1) && (searchx >= lx) && (searchx <= rx))
if ((searchy >= uwall[searchx]) && (searchy <= dwall[searchx]))
{
searchsector = sectnum; searchwall = spritenum;
searchstat = 3; searchit = 1;
}
globalorientation = cstat;
globalpicnum = tilenum;
if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0;
//if (picanm[globalpicnum]&192) globalpicnum += animateoffs((short)globalpicnum,spritenum+32768);
if (waloff[globalpicnum] == 0) loadtile(globalpicnum);
setgotpic(globalpicnum);
globalbufplc = waloff[globalpicnum];
globvis = mulscale16(globalhisibility,viewingrange);
if (sec->visibility != 0) globvis = mulscale4(globvis,(int32_t)((uint8_t)(sec->visibility+16)));
x = picsiz[globalpicnum]; y = ((x>>4)&15); x &= 15;
#if 0
if (pow2long[x] != xspan)
{
x++;
globalx1 = mulscale(globalx1,xspan,x);
globalx2 = mulscale(globalx2,xspan,x);
}
#endif
dax = globalxpanning; day = globalypanning;
globalxpanning = -dmulscale6(globalx1,day,globalx2,dax);
globalypanning = -dmulscale6(globaly1,day,globaly2,dax);
globalx2 = mulscale16(globalx2,viewingrange);
globaly2 = mulscale16(globaly2,viewingrange);
globalzd = mulscale16(globalzd,viewingrangerecip);
globalx1 = (globalx1-globalx2)*halfxdimen;
globaly1 = (globaly1-globaly2)*halfxdimen;
if ((cstat&2) == 0)
msethlineshift(x,y);
else
tsethlineshift(x,y);
globalispow2 = (pow2long[x]==xspan && pow2long[y]==yspan);
globalxspan = xspan;
globalyspan = yspan;
//Draw it!
ceilspritescan(lx,rx-1);
globalispow2 = 1;
}
else if ((cstat&48) == 48)
{
int32_t nxrepeat, nyrepeat, daxrepeat;
daxrepeat = (int32_t)tspr->xrepeat;
if ((sprite[spritenum].cstat&48)==16)
daxrepeat = (daxrepeat*5)/4;
lx = 0; rx = xdim-1;
for (x=lx; x<=rx; x++)
{
lwall[x] = (int32_t)startumost[x+windowx1]-windowy1;
swall[x] = (int32_t)startdmost[x+windowx1]-windowy1;
}
for (i=smostwallcnt-1; i>=0; i--)
{
j = smostwall[i];
if ((xb1[j] > rx) || (xb2[j] < lx)) continue;
if ((yp <= yb1[j]) && (yp <= yb2[j])) continue;
if (spritewallfront(tspr,(int32_t)thewall[j]) && ((yp <= yb1[j]) || (yp <= yb2[j]))) continue;
dalx2 = max(xb1[j],lx); darx2 = min(xb2[j],rx);
switch (smostwalltype[i])
{
case 0:
if (dalx2 <= darx2)
{
if ((dalx2 == lx) && (darx2 == rx)) return;
//clearbufbyte(&swall[dalx2],(darx2-dalx2+1)*sizeof(swall[0]),0L);
for (x=dalx2; x<=darx2; x++) swall[x] = 0;
}
break;
case 1:
k = smoststart[i] - xb1[j];
for (x=dalx2; x<=darx2; x++)
if (smost[k+x] > lwall[x]) lwall[x] = smost[k+x];
break;
case 2:
k = smoststart[i] - xb1[j];
for (x=dalx2; x<=darx2; x++)
if (smost[k+x] < swall[x]) swall[x] = smost[k+x];
break;
}
}
if (lwall[rx] >= swall[rx])
{
for (x=lx; x<rx; x++)
if (lwall[x] < swall[x]) break;
if (x == rx) return;
}
/*
for (i=0; i<MAXVOXMIPS; i++)
if (!voxoff[vtilenum][i])
{
kloadvoxel(vtilenum);
break;
}
*/
longptr = (int32_t *)voxoff[vtilenum][0];
if (voxscale[vtilenum] == 65536)
{
nxrepeat = (daxrepeat<<16);
nyrepeat = (((int32_t)tspr->yrepeat)<<16);
}
else
{
nxrepeat = daxrepeat*voxscale[vtilenum];
nyrepeat = ((int32_t)tspr->yrepeat)*voxscale[vtilenum];
}
if (!(cstat&128)) tspr->z -= mulscale22(B_LITTLE32(longptr[5]),nyrepeat);
yoff = /*(int32_t) ((int8_t)((picanm[sprite[tspr->owner].picnum]>>16)&255)) +*/ (int32_t)tspr->yoffset;
tspr->z -= mulscale14(yoff,nyrepeat);
globvis = globalvisibility;
if (sec->visibility != 0) globvis = mulscale4(globvis,(int32_t)((uint8_t)(sec->visibility+16)));
#ifdef YAX_ENABLE
if (yax_globallev==YAX_MAXDRAWS || searchit==2)
#endif
if ((searchit >= 1) && (yp > (4<<8)) && (searchy >= lwall[searchx]) && (searchy < swall[searchx]))
{
siz = divscale19(xdimenscale,yp);
xv = mulscale16(nxrepeat,xyaspect);
xspan = ((B_LITTLE32(longptr[0])+B_LITTLE32(longptr[1]))>>1);
yspan = B_LITTLE32(longptr[2]);
xsiz = mulscale30(siz,xv*xspan);
ysiz = mulscale30(siz,nyrepeat*yspan);
//Watch out for divscale overflow
if (((xspan>>11) < xsiz) && (yspan < (ysiz>>1)))
{
x1 = xb-(xsiz>>1);
if (xspan&1) x1 += mulscale31(siz,xv); //Odd xspans
i = mulscale30(siz,xv*xoff);
if ((cstat&4) == 0) x1 -= i; else x1 += i;
y1 = mulscale16(tspr->z-globalposz,siz);
//y1 -= mulscale30(siz,nyrepeat*yoff);
y1 += (globalhoriz<<8)-ysiz;
//if (cstat&128) //Already fixed up above
y1 += (ysiz>>1);
x2 = x1+xsiz-1;
y2 = y1+ysiz-1;
if (((y1|255) < (y2|255)) && (searchx >= (x1>>8)+1) && (searchx <= (x2>>8)))
{
if ((sec->ceilingstat&3) == 0)
startum = globalhoriz+mulscale24(siz,sec->ceilingz-globalposz)-1;
else
startum = 0;
if ((sec->floorstat&3) == 0)
startdm = globalhoriz+mulscale24(siz,sec->floorz-globalposz)+1;
else
startdm = INT32_MAX;
//sprite
if ((searchy >= max(startum,(y1>>8))) && (searchy < min(startdm,(y2>>8))))
{
searchsector = sectnum; searchwall = spritenum;
searchstat = 3; searchit = 1;
}
}
}
}
i = (int32_t)tspr->ang+1536;
#ifdef USE_OPENGL
i += spriteext[tspr->owner].angoff;
#endif
drawvox(tspr->x,tspr->y,tspr->z,i,daxrepeat,(int32_t)tspr->yrepeat,vtilenum,tspr->shade,tspr->pal,lwall,swall);
}
// if (automapping == 1) show2dsprite[spritenum>>3] |= pow2char[spritenum&7];
}
//
// drawmaskwall (internal)
//
static void drawmaskwall(int16_t damaskwallcnt)
{
int32_t i, j, k, x, z, sectnum, z1, z2, lx, rx;
sectortype *sec, *nsec;
walltype *wal;
//============================================================================= //POLYMOST BEGINS
#ifdef USE_OPENGL
if (rendmode == 3) { polymost_drawmaskwall(damaskwallcnt); return; }
# ifdef POLYMER
if (rendmode == 4)
{
bglEnable(GL_ALPHA_TEST);
bglEnable(GL_BLEND);
polymer_drawmaskwall(damaskwallcnt);
bglDisable(GL_BLEND);
bglDisable(GL_ALPHA_TEST);
return;
}
#endif
#endif
//============================================================================= //POLYMOST ENDS
z = maskwall[damaskwallcnt];
wal = &wall[thewall[z]];
sectnum = thesector[z]; sec = &sector[sectnum];
nsec = &sector[wal->nextsector];
z1 = max(nsec->ceilingz,sec->ceilingz);
z2 = min(nsec->floorz,sec->floorz);
wallmost(uwall,z,sectnum,(uint8_t)0);
wallmost(uplc,z,(int32_t)wal->nextsector,(uint8_t)0);
for (x=xb1[z]; x<=xb2[z]; x++)
if (uplc[x] > uwall[x])
uwall[x] = uplc[x];
wallmost(dwall,z,sectnum,(uint8_t)1);
wallmost(dplc,z,(int32_t)wal->nextsector,(uint8_t)1);
for (x=xb1[z]; x<=xb2[z]; x++)
if (dplc[x] < dwall[x])
dwall[x] = dplc[x];
prepwall(z,wal);
globalorientation = (int32_t)wal->cstat;
globalpicnum = wal->overpicnum;
if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0;
globalxpanning = (int32_t)wal->xpanning;
globalypanning = (int32_t)wal->ypanning;
if (picanm[globalpicnum]&192) globalpicnum += animateoffs(globalpicnum,(int16_t)thewall[z]+16384);
globalshade = (int32_t)wal->shade;
globvis = globalvisibility;
if (sec->visibility != 0) globvis = mulscale4(globvis,(int32_t)((uint8_t)(sec->visibility+16)));
globalpal = (int32_t)wal->pal;
globalshiftval = (picsiz[globalpicnum]>>4);
if (pow2long[globalshiftval] != tilesizy[globalpicnum]) globalshiftval++;
globalshiftval = 32-globalshiftval;
globalyscale = (wal->yrepeat<<(globalshiftval-19));
if ((globalorientation&4) == 0)
globalzd = (((globalposz-z1)*globalyscale)<<8);
else
globalzd = (((globalposz-z2)*globalyscale)<<8);
globalzd += (globalypanning<<24);
if (globalorientation&256) globalyscale = -globalyscale, globalzd = -globalzd;
for (i=smostwallcnt-1; i>=0; i--)
{
j = smostwall[i];
if ((xb1[j] > xb2[z]) || (xb2[j] < xb1[z])) continue;
if (wallfront(j,z)) continue;
lx = max(xb1[j],xb1[z]); rx = min(xb2[j],xb2[z]);
switch (smostwalltype[i])
{
case 0:
if (lx <= rx)
{
if ((lx == xb1[z]) && (rx == xb2[z])) return;
//clearbufbyte(&dwall[lx],(rx-lx+1)*sizeof(dwall[0]),0L);
for (x=lx; x<=rx; x++) dwall[x] = 0;
}
break;
case 1:
k = smoststart[i] - xb1[j];
for (x=lx; x<=rx; x++)
if (smost[k+x] > uwall[x]) uwall[x] = smost[k+x];
break;
case 2:
k = smoststart[i] - xb1[j];
for (x=lx; x<=rx; x++)
if (smost[k+x] < dwall[x]) dwall[x] = smost[k+x];
break;
}
}
//maskwall
if ((searchit >= 1) && (searchx >= xb1[z]) && (searchx <= xb2[z]))
if ((searchy >= uwall[searchx]) && (searchy <= dwall[searchx]))
{
searchsector = sectnum; searchwall = thewall[z];
searchstat = 4; searchit = 1;
}
if ((globalorientation&128) == 0)
maskwallscan(xb1[z],xb2[z],uwall,dwall,swall,lwall);
else
{
if (globalorientation&128)
{
if (globalorientation&512) settransreverse(); else settransnormal();
}
transmaskwallscan(xb1[z],xb2[z]);
}
}
//
// fillpolygon (internal)
//
static void fillpolygon(int32_t npoints)
{
int32_t z, zz, x1, y1, x2, y2, miny, maxy, y, xinc, cnt;
int32_t ox, oy, bx, by, day1, day2;
int16_t *ptr, *ptr2;
intptr_t p;
// fix for bad next-point (xb1) values...
for (z=0; z<npoints; z++)
if ((unsigned)xb1[z] >= (unsigned)npoints)
xb1[z] = 0;
#ifdef USE_OPENGL
if (rendmode >= 3 && qsetmode == 200) { polymost_fillpolygon(npoints); return; }
#endif
miny = INT32_MAX; maxy = INT32_MIN;
for (z=npoints-1; z>=0; z--)
{ y = ry1[z]; miny = min(miny,y); maxy = max(maxy,y); }
miny = (miny>>12); maxy = (maxy>>12);
if (miny < 0) miny = 0;
if (maxy >= ydim) maxy = ydim-1;
ptr = smost; //They're pointers! - watch how you optimize this thing
for (y=miny; y<=maxy; y++)
{
dotp1[y] = ptr; dotp2[y] = ptr+(MAXNODESPERLINE>>1);
ptr += MAXNODESPERLINE;
}
for (z=npoints-1; z>=0; z--)
{
zz = xb1[z];
y1 = ry1[z]; day1 = clamp(y1>>12, 0, ydim-1); // clamp: crash prevention...
y2 = ry1[zz]; day2 = clamp(y2>>12, 0, ydim-1);
if (day1 != day2)
{
x1 = rx1[z]; x2 = rx1[zz];
xinc = divscale12(x2-x1,y2-y1);
if (day2 > day1)
{
x1 += mulscale12((day1<<12)+4095-y1,xinc);
for (y=day1; y<day2; y++)
{
if (!dotp2[y]) { x1 += xinc; continue; }
*dotp2[y]++ = (x1>>12); x1 += xinc;
}
}
else
{
x2 += mulscale12((day2<<12)+4095-y2,xinc);
for (y=day2; y<day1; y++)
{
if (!dotp1[y]) { x2 += xinc; continue; }
*dotp1[y]++ = (x2>>12); x2 += xinc;
}
}
}
}
globalx1 = mulscale16(globalx1,xyaspect);
globaly2 = mulscale16(globaly2,xyaspect);
oy = miny+1-(ydim>>1);
globalposx += oy*globalx1;
globalposy += oy*globaly2;
setuphlineasm4(asm1,asm2);
ptr = smost;
for (y=miny; y<=maxy; y++)
{
cnt = dotp1[y]-ptr; ptr2 = ptr+(MAXNODESPERLINE>>1);
for (z=cnt-1; z>=0; z--)
{
day1 = 0; day2 = 0;
for (zz=z; zz>0; zz--)
{
if (ptr[zz] < ptr[day1]) day1 = zz;
if (ptr2[zz] < ptr2[day2]) day2 = zz;
}
x1 = ptr[day1]; ptr[day1] = ptr[z];
x2 = ptr2[day2]-1; ptr2[day2] = ptr2[z];
if (x1 > x2) continue;
if (globalpolytype < 1)
{
//maphline
ox = x2+1-(xdim>>1);
bx = ox*asm1 + globalposx;
by = ox*asm2 - globalposy;
p = ylookup[y]+x2+frameplace;
hlineasm4(x2-x1,-1L,globalshade<<8,by,bx,p);
}
else
{
//maphline
ox = x1+1-(xdim>>1);
bx = ox*asm1 + globalposx;
by = ox*asm2 - globalposy;
p = ylookup[y]+x1+frameplace;
if (globalpolytype == 1)
mhline(globalbufplc,bx,(x2-x1)<<16,0L,by,p);
else
{
thline(globalbufplc,bx,(x2-x1)<<16,0L,by,p);
}
}
}
globalposx += globalx1;
globalposy += globaly2;
ptr += MAXNODESPERLINE;
}
faketimerhandler();
}
//
// clippoly (internal)
//
static int32_t clippoly(int32_t npoints, int32_t clipstat)
{
int32_t z, zz, s1, s2, t, npoints2, start2, z1, z2, z3, z4, splitcnt;
int32_t cx1, cy1, cx2, cy2;
cx1 = windowx1;
cy1 = windowy1;
cx2 = windowx2+1;
cy2 = windowy2+1;
cx1 <<= 12; cy1 <<= 12; cx2 <<= 12; cy2 <<= 12;
if (clipstat&0xa) //Need to clip top or left
{
npoints2 = 0; start2 = 0; z = 0; splitcnt = 0;
do
{
s2 = cx1-rx1[z];
do
{
zz = xb1[z]; xb1[z] = -1;
s1 = s2; s2 = cx1-rx1[zz];
if (s1 < 0)
{
rx2[npoints2] = rx1[z]; ry2[npoints2] = ry1[z];
xb2[npoints2] = npoints2+1; npoints2++;
}
if ((s1^s2) < 0)
{
rx2[npoints2] = rx1[z]+scale(rx1[zz]-rx1[z],s1,s1-s2);
ry2[npoints2] = ry1[z]+scale(ry1[zz]-ry1[z],s1,s1-s2);
if (s1 < 0) p2[splitcnt++] = npoints2;
xb2[npoints2] = npoints2+1;
npoints2++;
}
z = zz;
}
while (xb1[z] >= 0);
if (npoints2 >= start2+3)
xb2[npoints2-1] = start2, start2 = npoints2;
else
npoints2 = start2;
z = 1;
while ((z < npoints) && (xb1[z] < 0)) z++;
}
while (z < npoints);
if (npoints2 <= 2) return(0);
for (z=1; z<splitcnt; z++)
for (zz=0; zz<z; zz++)
{
z1 = p2[z]; z2 = xb2[z1]; z3 = p2[zz]; z4 = xb2[z3];
s1 = klabs(rx2[z1]-rx2[z2])+klabs(ry2[z1]-ry2[z2]);
s1 += klabs(rx2[z3]-rx2[z4])+klabs(ry2[z3]-ry2[z4]);
s2 = klabs(rx2[z1]-rx2[z4])+klabs(ry2[z1]-ry2[z4]);
s2 += klabs(rx2[z3]-rx2[z2])+klabs(ry2[z3]-ry2[z2]);
if (s2 < s1)
{ t = xb2[p2[z]]; xb2[p2[z]] = xb2[p2[zz]]; xb2[p2[zz]] = t; }
}
npoints = 0; start2 = 0; z = 0; splitcnt = 0;
do
{
s2 = cy1-ry2[z];
do
{
zz = xb2[z]; xb2[z] = -1;
s1 = s2; s2 = cy1-ry2[zz];
if (s1 < 0)
{
rx1[npoints] = rx2[z]; ry1[npoints] = ry2[z];
xb1[npoints] = npoints+1; npoints++;
}
if ((s1^s2) < 0)
{
rx1[npoints] = rx2[z]+scale(rx2[zz]-rx2[z],s1,s1-s2);
ry1[npoints] = ry2[z]+scale(ry2[zz]-ry2[z],s1,s1-s2);
if (s1 < 0) p2[splitcnt++] = npoints;
xb1[npoints] = npoints+1;
npoints++;
}
z = zz;
}
while (xb2[z] >= 0);
if (npoints >= start2+3)
xb1[npoints-1] = start2, start2 = npoints;
else
npoints = start2;
z = 1;
while ((z < npoints2) && (xb2[z] < 0)) z++;
}
while (z < npoints2);
if (npoints <= 2) return(0);
for (z=1; z<splitcnt; z++)
for (zz=0; zz<z; zz++)
{
z1 = p2[z]; z2 = xb1[z1]; z3 = p2[zz]; z4 = xb1[z3];
s1 = klabs(rx1[z1]-rx1[z2])+klabs(ry1[z1]-ry1[z2]);
s1 += klabs(rx1[z3]-rx1[z4])+klabs(ry1[z3]-ry1[z4]);
s2 = klabs(rx1[z1]-rx1[z4])+klabs(ry1[z1]-ry1[z4]);
s2 += klabs(rx1[z3]-rx1[z2])+klabs(ry1[z3]-ry1[z2]);
if (s2 < s1)
{ t = xb1[p2[z]]; xb1[p2[z]] = xb1[p2[zz]]; xb1[p2[zz]] = t; }
}
}
if (clipstat&0x5) //Need to clip bottom or right
{
npoints2 = 0; start2 = 0; z = 0; splitcnt = 0;
do
{
s2 = rx1[z]-cx2;
do
{
zz = xb1[z]; xb1[z] = -1;
s1 = s2; s2 = rx1[zz]-cx2;
if (s1 < 0)
{
rx2[npoints2] = rx1[z]; ry2[npoints2] = ry1[z];
xb2[npoints2] = npoints2+1; npoints2++;
}
if ((s1^s2) < 0)
{
rx2[npoints2] = rx1[z]+scale(rx1[zz]-rx1[z],s1,s1-s2);
ry2[npoints2] = ry1[z]+scale(ry1[zz]-ry1[z],s1,s1-s2);
if (s1 < 0) p2[splitcnt++] = npoints2;
xb2[npoints2] = npoints2+1;
npoints2++;
}
z = zz;
}
while (xb1[z] >= 0);
if (npoints2 >= start2+3)
xb2[npoints2-1] = start2, start2 = npoints2;
else
npoints2 = start2;
z = 1;
while ((z < npoints) && (xb1[z] < 0)) z++;
}
while (z < npoints);
if (npoints2 <= 2) return(0);
for (z=1; z<splitcnt; z++)
for (zz=0; zz<z; zz++)
{
z1 = p2[z]; z2 = xb2[z1]; z3 = p2[zz]; z4 = xb2[z3];
s1 = klabs(rx2[z1]-rx2[z2])+klabs(ry2[z1]-ry2[z2]);
s1 += klabs(rx2[z3]-rx2[z4])+klabs(ry2[z3]-ry2[z4]);
s2 = klabs(rx2[z1]-rx2[z4])+klabs(ry2[z1]-ry2[z4]);
s2 += klabs(rx2[z3]-rx2[z2])+klabs(ry2[z3]-ry2[z2]);
if (s2 < s1)
{ t = xb2[p2[z]]; xb2[p2[z]] = xb2[p2[zz]]; xb2[p2[zz]] = t; }
}
npoints = 0; start2 = 0; z = 0; splitcnt = 0;
do
{
s2 = ry2[z]-cy2;
do
{
zz = xb2[z]; xb2[z] = -1;
s1 = s2; s2 = ry2[zz]-cy2;
if (s1 < 0)
{
rx1[npoints] = rx2[z]; ry1[npoints] = ry2[z];
xb1[npoints] = npoints+1; npoints++;
}
if ((s1^s2) < 0)
{
rx1[npoints] = rx2[z]+scale(rx2[zz]-rx2[z],s1,s1-s2);
ry1[npoints] = ry2[z]+scale(ry2[zz]-ry2[z],s1,s1-s2);
if (s1 < 0) p2[splitcnt++] = npoints;
xb1[npoints] = npoints+1;
npoints++;
}
z = zz;
}
while (xb2[z] >= 0);
if (npoints >= start2+3)
xb1[npoints-1] = start2, start2 = npoints;
else
npoints = start2;
z = 1;
while ((z < npoints2) && (xb2[z] < 0)) z++;
}
while (z < npoints2);
if (npoints <= 2) return(0);
for (z=1; z<splitcnt; z++)
for (zz=0; zz<z; zz++)
{
z1 = p2[z]; z2 = xb1[z1]; z3 = p2[zz]; z4 = xb1[z3];
s1 = klabs(rx1[z1]-rx1[z2])+klabs(ry1[z1]-ry1[z2]);
s1 += klabs(rx1[z3]-rx1[z4])+klabs(ry1[z3]-ry1[z4]);
s2 = klabs(rx1[z1]-rx1[z4])+klabs(ry1[z1]-ry1[z4]);
s2 += klabs(rx1[z3]-rx1[z2])+klabs(ry1[z3]-ry1[z2]);
if (s2 < s1)
{ t = xb1[p2[z]]; xb1[p2[z]] = xb1[p2[zz]]; xb1[p2[zz]] = t; }
}
}
return(npoints);
}
//
// clippoly4 (internal)
//
//Assume npoints=4 with polygon on &nrx1,&nry1
//JBF 20031206: Thanks to Ken's hunting, s/(rx1|ry1|rx2|ry2)/n\1/ in this function
static int32_t clippoly4(int32_t cx1, int32_t cy1, int32_t cx2, int32_t cy2)
{
int32_t n, nn, z, zz, x, x1, x2, y, y1, y2, t;
nn = 0; z = 0;
do
{
zz = ((z+1)&3);
x1 = nrx1[z]; x2 = nrx1[zz]-x1;
if ((cx1 <= x1) && (x1 <= cx2))
nrx2[nn] = x1, nry2[nn] = nry1[z], nn++;
if (x2 <= 0) x = cx2; else x = cx1;
t = x-x1;
if (((t-x2)^t) < 0)
nrx2[nn] = x, nry2[nn] = nry1[z]+scale(t,nry1[zz]-nry1[z],x2), nn++;
if (x2 <= 0) x = cx1; else x = cx2;
t = x-x1;
if (((t-x2)^t) < 0)
nrx2[nn] = x, nry2[nn] = nry1[z]+scale(t,nry1[zz]-nry1[z],x2), nn++;
z = zz;
}
while (z != 0);
if (nn < 3) return(0);
n = 0; z = 0;
do
{
zz = z+1; if (zz == nn) zz = 0;
y1 = nry2[z]; y2 = nry2[zz]-y1;
if ((cy1 <= y1) && (y1 <= cy2))
nry1[n] = y1, nrx1[n] = nrx2[z], n++;
if (y2 <= 0) y = cy2; else y = cy1;
t = y-y1;
if (((t-y2)^t) < 0)
nry1[n] = y, nrx1[n] = nrx2[z]+scale(t,nrx2[zz]-nrx2[z],y2), n++;
if (y2 <= 0) y = cy1; else y = cy2;
t = y-y1;
if (((t-y2)^t) < 0)
nry1[n] = y, nrx1[n] = nrx2[z]+scale(t,nrx2[zz]-nrx2[z],y2), n++;
z = zz;
}
while (z != 0);
return(n);
}
//
// dorotatesprite (internal)
//
//JBF 20031206: Thanks to Ken's hunting, s/(rx1|ry1|rx2|ry2)/n\1/ in this function
static void dorotatesprite(int32_t sx, int32_t sy, int32_t z, int16_t a, int16_t picnum, int8_t dashade,
char dapalnum, int32_t dastat, int32_t cx1, int32_t cy1, int32_t cx2, int32_t cy2, int32_t uniqid)
{
int32_t cosang, sinang, v, nextv, dax1, dax2, oy, bx, by;
int32_t i, x, y, x1, y1, x2, y2, gx1, gy1 ;
intptr_t p, bufplc, palookupoffs;
int32_t xsiz, ysiz, xoff, yoff, npoints, yplc, yinc, lx, rx;
int32_t xv, yv, xv2, yv2;
UNREFERENCED_PARAMETER(uniqid);
//============================================================================= //POLYMOST BEGINS
#ifdef USE_OPENGL
if (rendmode >= 3 && qsetmode == 200) { polymost_dorotatesprite(sx,sy,z,a,picnum,dashade,dapalnum,dastat,cx1,cy1,cx2,cy2,uniqid); return; }
#endif
//============================================================================= //POLYMOST ENDS
if (cx1 < 0) cx1 = 0;
if (cy1 < 0) cy1 = 0;
if (cx2 > xres-1) cx2 = xres-1;
if (cy2 > yres-1) cy2 = yres-1;
xsiz = tilesizx[picnum]; ysiz = tilesizy[picnum];
if (dastat&16) { xoff = 0; yoff = 0; }
else
{
xoff = (int32_t)((int8_t)((picanm[picnum]>>8)&255))+(xsiz>>1);
yoff = (int32_t)((int8_t)((picanm[picnum]>>16)&255))+(ysiz>>1);
}
if (dastat&4) yoff = ysiz-yoff;
cosang = sintable[(a+512)&2047]; sinang = sintable[a&2047];
if ((dastat&2) != 0) //Auto window size scaling
{
if ((dastat&8) == 0)
{
x = xdimenscale; //= scale(xdimen,yxaspect,320);
sx = ((cx1+cx2+2)<<15)+scale(sx-(320<<15),xdimen,320);
sy = ((cy1+cy2+2)<<15)+mulscale16(sy-(200<<15),x);
}
else
{
//If not clipping to startmosts, & auto-scaling on, as a
//hard-coded bonus, scale to full screen instead
x = scale(xdim,yxaspect,320);
sx = (xdim<<15)+32768+scale(sx-(320<<15),xdim,320);
sy = (ydim<<15)+32768+mulscale16(sy-(200<<15),x);
}
z = mulscale16(z,x);
}
xv = mulscale14(cosang,z);
yv = mulscale14(sinang,z);
if (((dastat&2) != 0) || ((dastat&8) == 0)) //Don't aspect unscaled perms
{
xv2 = mulscale16(xv,xyaspect);
yv2 = mulscale16(yv,xyaspect);
}
else
{
xv2 = xv;
yv2 = yv;
}
nry1[0] = sy - (yv*xoff + xv*yoff);
nry1[1] = nry1[0] + yv*xsiz;
nry1[3] = nry1[0] + xv*ysiz;
nry1[2] = nry1[1]+nry1[3]-nry1[0];
i = (cy1<<16); if ((nry1[0]<i) && (nry1[1]<i) && (nry1[2]<i) && (nry1[3]<i)) return;
i = (cy2<<16); if ((nry1[0]>i) && (nry1[1]>i) && (nry1[2]>i) && (nry1[3]>i)) return;
nrx1[0] = sx - (xv2*xoff - yv2*yoff);
nrx1[1] = nrx1[0] + xv2*xsiz;
nrx1[3] = nrx1[0] - yv2*ysiz;
nrx1[2] = nrx1[1]+nrx1[3]-nrx1[0];
i = (cx1<<16); if ((nrx1[0]<i) && (nrx1[1]<i) && (nrx1[2]<i) && (nrx1[3]<i)) return;
i = (cx2<<16); if ((nrx1[0]>i) && (nrx1[1]>i) && (nrx1[2]>i) && (nrx1[3]>i)) return;
gx1 = nrx1[0]; gy1 = nry1[0]; //back up these before clipping
if ((npoints = clippoly4(cx1<<16,cy1<<16,(cx2+1)<<16,(cy2+1)<<16)) < 3) return;
lx = nrx1[0]; rx = nrx1[0];
nextv = 0;
for (v=npoints-1; v>=0; v--)
{
x1 = nrx1[v]; x2 = nrx1[nextv];
dax1 = (x1>>16); if (x1 < lx) lx = x1;
dax2 = (x2>>16); if (x1 > rx) rx = x1;
if (dax1 != dax2)
{
y1 = nry1[v]; y2 = nry1[nextv];
yinc = divscale16(y2-y1,x2-x1);
if (dax2 > dax1)
{
yplc = y1 + mulscale16((dax1<<16)+65535-x1,yinc);
qinterpolatedown16short((intptr_t)(&uplc[dax1]),dax2-dax1,yplc,yinc);
}
else
{
yplc = y2 + mulscale16((dax2<<16)+65535-x2,yinc);
qinterpolatedown16short((intptr_t)(&dplc[dax2]),dax1-dax2,yplc,yinc);
}
}
nextv = v;
}
if (waloff[picnum] == 0) loadtile(picnum);
setgotpic(picnum);
bufplc = waloff[picnum];
if (palookup[dapalnum] == NULL) dapalnum = 0;
palookupoffs = FP_OFF(palookup[dapalnum]) + (getpalookup(0L,(int32_t)dashade)<<8);
i = divscale32(1L,z);
xv = mulscale14(sinang,i);
yv = mulscale14(cosang,i);
if (((dastat&2) != 0) || ((dastat&8) == 0)) //Don't aspect unscaled perms
{
yv2 = mulscale16(-xv,yxaspect);
xv2 = mulscale16(yv,yxaspect);
}
else
{
yv2 = -xv;
xv2 = yv;
}
x1 = (lx>>16); x2 = (rx>>16);
oy = 0;
x = (x1<<16)-1-gx1; y = (oy<<16)+65535-gy1;
bx = dmulscale16(x,xv2,y,xv);
by = dmulscale16(x,yv2,y,yv);
if (dastat&4) { yv = -yv; yv2 = -yv2; by = (ysiz<<16)-1-by; }
/* if (origbuffermode == 0)
{
if (dastat&128)
{
obuffermode = buffermode;
buffermode = 0;
setactivepage(activepage);
}
}
else if (dastat&8)
permanentupdate = 1; */
#if !defined ENGINE_USING_A_C
if ((dastat&1) == 0)
{
char bad;
int32_t ny1, ny2, xx, xend;
int32_t qlinemode=0, y1ve[4], y2ve[4], u4, d4;
if (((a&1023) == 0) && (ysiz <= 256)) //vlineasm4 has 256 high limit!
{
if (dastat&64) setupvlineasm(24L); else setupmvlineasm(24L);
by <<= 8; yv <<= 8; yv2 <<= 8;
palookupoffse[0] = palookupoffse[1] = palookupoffse[2] = palookupoffse[3] = palookupoffs;
vince[0] = vince[1] = vince[2] = vince[3] = yv;
for (x=x1; x<x2; x+=4)
{
bad = 15; xend = min(x2-x,4);
for (xx=0; xx<xend; xx++)
{
bx += xv2;
y1 = uplc[x+xx]; y2 = dplc[x+xx];
if ((dastat&8) == 0)
{
if (startumost[x+xx] > y1) y1 = startumost[x+xx];
if (startdmost[x+xx] < y2) y2 = startdmost[x+xx];
}
if (y2 <= y1) continue;
by += yv*(y1-oy); oy = y1;
bufplce[xx] = (bx>>16)*ysiz+bufplc;
vplce[xx] = by;
y1ve[xx] = y1;
y2ve[xx] = y2-1;
bad &= ~pow2char[xx];
}
p = x+frameplace;
assert(!(bad&1));
u4 = y1ve[0];
d4 = y2ve[0];
for (xx=1; xx<4; xx++)
if (!(bad&pow2char[xx]))
{
u4 = max(u4, y1ve[xx]);
d4 = min(d4, y2ve[xx]);
}
// This version may access uninitialized y?ve[] values with
// thin tiles, e.g. 3085 (MINIFONT period, 1x5):
// u4 = max(max(y1ve[0],y1ve[1]),max(y1ve[2],y1ve[3]));
// d4 = min(min(y2ve[0],y2ve[1]),min(y2ve[2],y2ve[3]));
if (dastat&64)
{
if ((bad != 0) || (u4 >= d4))
{
if (!(bad&1)) prevlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0],vplce[0],bufplce[0],ylookup[y1ve[0]]+p+0);
if (!(bad&2)) prevlineasm1(vince[1],palookupoffse[1],y2ve[1]-y1ve[1],vplce[1],bufplce[1],ylookup[y1ve[1]]+p+1);
if (!(bad&4)) prevlineasm1(vince[2],palookupoffse[2],y2ve[2]-y1ve[2],vplce[2],bufplce[2],ylookup[y1ve[2]]+p+2);
if (!(bad&8)) prevlineasm1(vince[3],palookupoffse[3],y2ve[3]-y1ve[3],vplce[3],bufplce[3],ylookup[y1ve[3]]+p+3);
continue;
}
if (u4 > y1ve[0]) vplce[0] = prevlineasm1(vince[0],palookupoffse[0],u4-y1ve[0]-1,vplce[0],bufplce[0],ylookup[y1ve[0]]+p+0);
if (u4 > y1ve[1]) vplce[1] = prevlineasm1(vince[1],palookupoffse[1],u4-y1ve[1]-1,vplce[1],bufplce[1],ylookup[y1ve[1]]+p+1);
if (u4 > y1ve[2]) vplce[2] = prevlineasm1(vince[2],palookupoffse[2],u4-y1ve[2]-1,vplce[2],bufplce[2],ylookup[y1ve[2]]+p+2);
if (u4 > y1ve[3]) vplce[3] = prevlineasm1(vince[3],palookupoffse[3],u4-y1ve[3]-1,vplce[3],bufplce[3],ylookup[y1ve[3]]+p+3);
if (d4 >= u4) vlineasm4(d4-u4+1,ylookup[u4]+p);
i = p+ylookup[d4+1];
if (y2ve[0] > d4) prevlineasm1(vince[0],palookupoffse[0],y2ve[0]-d4-1,vplce[0],bufplce[0],i+0);
if (y2ve[1] > d4) prevlineasm1(vince[1],palookupoffse[1],y2ve[1]-d4-1,vplce[1],bufplce[1],i+1);
if (y2ve[2] > d4) prevlineasm1(vince[2],palookupoffse[2],y2ve[2]-d4-1,vplce[2],bufplce[2],i+2);
if (y2ve[3] > d4) prevlineasm1(vince[3],palookupoffse[3],y2ve[3]-d4-1,vplce[3],bufplce[3],i+3);
}
else
{
if ((bad != 0) || (u4 >= d4))
{
if (!(bad&1)) mvlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0],vplce[0],bufplce[0],ylookup[y1ve[0]]+p+0);
if (!(bad&2)) mvlineasm1(vince[1],palookupoffse[1],y2ve[1]-y1ve[1],vplce[1],bufplce[1],ylookup[y1ve[1]]+p+1);
if (!(bad&4)) mvlineasm1(vince[2],palookupoffse[2],y2ve[2]-y1ve[2],vplce[2],bufplce[2],ylookup[y1ve[2]]+p+2);
if (!(bad&8)) mvlineasm1(vince[3],palookupoffse[3],y2ve[3]-y1ve[3],vplce[3],bufplce[3],ylookup[y1ve[3]]+p+3);
continue;
}
if (u4 > y1ve[0]) vplce[0] = mvlineasm1(vince[0],palookupoffse[0],u4-y1ve[0]-1,vplce[0],bufplce[0],ylookup[y1ve[0]]+p+0);
if (u4 > y1ve[1]) vplce[1] = mvlineasm1(vince[1],palookupoffse[1],u4-y1ve[1]-1,vplce[1],bufplce[1],ylookup[y1ve[1]]+p+1);
if (u4 > y1ve[2]) vplce[2] = mvlineasm1(vince[2],palookupoffse[2],u4-y1ve[2]-1,vplce[2],bufplce[2],ylookup[y1ve[2]]+p+2);
if (u4 > y1ve[3]) vplce[3] = mvlineasm1(vince[3],palookupoffse[3],u4-y1ve[3]-1,vplce[3],bufplce[3],ylookup[y1ve[3]]+p+3);
if (d4 >= u4) mvlineasm4(d4-u4+1,ylookup[u4]+p);
i = p+ylookup[d4+1];
if (y2ve[0] > d4) mvlineasm1(vince[0],palookupoffse[0],y2ve[0]-d4-1,vplce[0],bufplce[0],i+0);
if (y2ve[1] > d4) mvlineasm1(vince[1],palookupoffse[1],y2ve[1]-d4-1,vplce[1],bufplce[1],i+1);
if (y2ve[2] > d4) mvlineasm1(vince[2],palookupoffse[2],y2ve[2]-d4-1,vplce[2],bufplce[2],i+2);
if (y2ve[3] > d4) mvlineasm1(vince[3],palookupoffse[3],y2ve[3]-d4-1,vplce[3],bufplce[3],i+3);
}
faketimerhandler();
}
}
else
{
if (dastat&64)
{
if ((xv2&0x0000ffff) == 0)
{
qlinemode = 1;
setupqrhlineasm4(0L,yv2<<16,(xv2>>16)*ysiz+(yv2>>16),palookupoffs,0L,0L);
}
else
{
qlinemode = 0;
setuprhlineasm4(xv2<<16,yv2<<16,(xv2>>16)*ysiz+(yv2>>16),palookupoffs,ysiz,0L);
}
}
else
setuprmhlineasm4(xv2<<16,yv2<<16,(xv2>>16)*ysiz+(yv2>>16),palookupoffs,ysiz,0L);
y1 = uplc[x1];
if (((dastat&8) == 0) && (startumost[x1] > y1)) y1 = startumost[x1];
y2 = y1;
for (x=x1; x<x2; x++)
{
ny1 = uplc[x]-1; ny2 = dplc[x];
if ((dastat&8) == 0)
{
if (startumost[x]-1 > ny1) ny1 = startumost[x]-1;
if (startdmost[x] < ny2) ny2 = startdmost[x];
}
if (ny1 < ny2-1)
{
if (ny1 >= y2)
{
while (y1 < y2-1)
{
y1++; if ((y1&31) == 0) faketimerhandler();
//x,y1
bx += xv*(y1-oy); by += yv*(y1-oy); oy = y1;
if (dastat&64)
{
if (qlinemode) qrhlineasm4(x-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,0L ,by<<16,ylookup[y1]+x+frameplace);
else rhlineasm4(x-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y1]+x+frameplace);
}
else rmhlineasm4(x-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y1]+x+frameplace);
}
y1 = ny1;
}
else
{
while (y1 < ny1)
{
y1++; if ((y1&31) == 0) faketimerhandler();
//x,y1
bx += xv*(y1-oy); by += yv*(y1-oy); oy = y1;
if (dastat&64)
{
if (qlinemode) qrhlineasm4(x-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,0L ,by<<16,ylookup[y1]+x+frameplace);
else rhlineasm4(x-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y1]+x+frameplace);
}
else rmhlineasm4(x-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y1]+x+frameplace);
}
while (y1 > ny1) lastx[y1--] = x;
}
while (y2 > ny2)
{
y2--; if ((y2&31) == 0) faketimerhandler();
//x,y2
bx += xv*(y2-oy); by += yv*(y2-oy); oy = y2;
if (dastat&64)
{
if (qlinemode) qrhlineasm4(x-lastx[y2],(bx>>16)*ysiz+(by>>16)+bufplc,0L,0L ,by<<16,ylookup[y2]+x+frameplace);
else rhlineasm4(x-lastx[y2],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y2]+x+frameplace);
}
else rmhlineasm4(x-lastx[y2],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y2]+x+frameplace);
}
while (y2 < ny2) lastx[y2++] = x;
}
else
{
while (y1 < y2-1)
{
y1++; if ((y1&31) == 0) faketimerhandler();
//x,y1
bx += xv*(y1-oy); by += yv*(y1-oy); oy = y1;
if (dastat&64)
{
if (qlinemode) qrhlineasm4(x-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,0L ,by<<16,ylookup[y1]+x+frameplace);
else rhlineasm4(x-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y1]+x+frameplace);
}
else rmhlineasm4(x-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y1]+x+frameplace);
}
if (x == x2-1) { bx += xv2; by += yv2; break; }
y1 = uplc[x+1];
if (((dastat&8) == 0) && (startumost[x+1] > y1)) y1 = startumost[x+1];
y2 = y1;
}
bx += xv2; by += yv2;
}
while (y1 < y2-1)
{
y1++; if ((y1&31) == 0) faketimerhandler();
//x2,y1
bx += xv*(y1-oy); by += yv*(y1-oy); oy = y1;
if (dastat&64)
{
if (qlinemode) qrhlineasm4(x2-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,0L,by<<16,ylookup[y1]+x2+frameplace);
else rhlineasm4(x2-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y1]+x2+frameplace);
}
else rmhlineasm4(x2-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y1]+x2+frameplace);
}
}
}
else
#endif // !defined ENGINE_USING_A_C
{
if ((dastat&1) == 0)
{
#if !defined ENGINE_USING_A_C
if (dastat&64)
setupspritevline(palookupoffs,(xv>>16)*ysiz,xv<<16,ysiz,yv,0L);
else
msetupspritevline(palookupoffs,(xv>>16)*ysiz,xv<<16,ysiz,yv,0L);
#else
if (dastat&64)
setupspritevline(palookupoffs,xv,yv,ysiz);
else
msetupspritevline(palookupoffs,xv,yv,ysiz);
#endif
}
else
{
#if !defined ENGINE_USING_A_C
tsetupspritevline(palookupoffs,(xv>>16)*ysiz,xv<<16,ysiz,yv,0L);
#else
tsetupspritevline(palookupoffs,xv,yv,ysiz);
#endif
if (dastat&32) settransreverse(); else settransnormal();
}
for (x=x1; x<x2; x++)
{
bx += xv2; by += yv2;
y1 = uplc[x]; y2 = dplc[x];
if ((dastat&8) == 0)
{
if (startumost[x] > y1) y1 = startumost[x];
if (startdmost[x] < y2) y2 = startdmost[x];
}
if (y2 <= y1) continue;
switch (y1-oy)
{
case -1:
bx -= xv; by -= yv; oy = y1; break;
case 0:
break;
case 1:
bx += xv; by += yv; oy = y1; break;
default:
bx += xv*(y1-oy); by += yv*(y1-oy); oy = y1; break;
}
p = ylookup[y1]+x+frameplace;
if ((dastat&1) == 0)
{
#if !defined ENGINE_USING_A_C
if (dastat&64)
spritevline(0L,by<<16,y2-y1+1,bx<<16,(bx>>16)*ysiz+(by>>16)+bufplc,p);
else
mspritevline(0L,by<<16,y2-y1+1,bx<<16,(bx>>16)*ysiz+(by>>16)+bufplc,p);
#else
if (dastat&64)
spritevline(bx&65535,by&65535,y2-y1+1,(bx>>16)*ysiz+(by>>16)+bufplc,p);
else
mspritevline(bx&65535,by&65535,y2-y1+1,(bx>>16)*ysiz+(by>>16)+bufplc,p);
#endif
}
else
{
#if !defined ENGINE_USING_A_C
tspritevline(0L,by<<16,y2-y1+1,bx<<16,(bx>>16)*ysiz+(by>>16)+bufplc,p);
#else
tspritevline(bx&65535,by&65535,y2-y1+1,(bx>>16)*ysiz+(by>>16)+bufplc,p);
//transarea += (y2-y1);
#endif
}
faketimerhandler();
}
}
/* if ((dastat&128) && (origbuffermode == 0))
{
buffermode = obuffermode;
setactivepage(activepage);
}*/
}
//
// initksqrt (internal)
//
static inline void initksqrt(void)
{
int32_t i, j, k;
j = 1; k = 0;
for (i=0; i<4096; i++)
{
if (i >= j) { j <<= 2; k++; }
sqrtable[i] = (uint16_t)(msqrtasm((i<<18)+131072)<<1);
shlookup[i] = (k<<1)+((10-k)<<8);
if (i < 256) shlookup[i+4096] = ((k+6)<<1)+((10-(k+6))<<8);
}
}
//
// dosetaspect
//
static void dosetaspect(void)
{
int32_t i, j, k, x, xinc;
if (xyaspect != oxyaspect)
{
oxyaspect = xyaspect;
j = xyaspect*320;
horizlookup2[horizycent-1] = divscale26(131072,j);
for (i=ydim*4-1; i>=0; i--)
if (i != (horizycent-1))
{
horizlookup[i] = divscale28(1,i-(horizycent-1));
horizlookup2[i] = divscale14(klabs(horizlookup[i]),j);
}
}
if ((xdimen != oxdimen) || (viewingrange != oviewingrange))
{
oxdimen = xdimen;
oviewingrange = viewingrange;
xinc = mulscale32(viewingrange*320,xdimenrecip);
x = (640<<16)-mulscale1(xinc,xdimen);
for (i=0; i<xdimen; i++)
{
j = (x&65535); k = (x>>16); x += xinc;
if (j != 0) j = mulscale16((int32_t)radarang[k+1]-(int32_t)radarang[k],j);
radarang2[i] = (int16_t)(((int32_t)radarang[k]+j)>>6);
}
for (i=1; i<(int32_t)(sizeof(distrecip)/sizeof(distrecip[0])); i++)
distrecip[i] = divscale20(xdimen,i);
nytooclose = xdimen*2100;
nytoofar = 65536*16384-1048576;
}
}
//
// loadtables (internal)
//
static inline void calcbritable(void)
{
int32_t i,j;
double a,b;
for (i=0; i<16; i++)
{
a = (double)8 / ((double)i+8);
b = (double)255 / pow((double)255,a);
for (j=0; j<256; j++) // JBF 20040207: full 8bit precision
britable[i][j] = (uint8_t)(pow((double)j,a)*b);
}
}
static int32_t loadtables(void)
{
int32_t i, fil;
if (tablesloaded == 0)
{
initksqrt();
for (i=0; i<2048; i++) reciptable[i] = divscale30(2048L,i+2048);
if ((fil = kopen4load("tables.dat",0)) != -1)
{
kread(fil,sintable,2048*2); for (i=2048-1; i>=0; i--) sintable[i] = B_LITTLE16(sintable[i]);
kread(fil,radarang,640*2); for (i=640-1; i>=0; i--) radarang[i] = B_LITTLE16(radarang[i]);
for (i=0; i<640; i++) radarang[1279-i] = -radarang[i];
//kread(fil,textfont,1024);
//kread(fil,smalltextfont,1024);
//kread(fil,britable,1024);
calcbritable();
kclose(fil);
}
else
{
engineerrstr = "Failed to load TABLES.DAT!";
initprintf("ERROR: %s\n", engineerrstr);
return 1;
}
tablesloaded = 1;
}
return 0;
}
//
// initfastcolorlookup (internal)
//
static void initfastcolorlookup(int32_t rscale, int32_t gscale, int32_t bscale)
{
int32_t i, j, x, y, z;
char *pal1;
j = 0;
for (i=64; i>=0; i--)
{
//j = (i-64)*(i-64);
rdist[i] = rdist[128-i] = j*rscale;
gdist[i] = gdist[128-i] = j*gscale;
bdist[i] = bdist[128-i] = j*bscale;
j += 129-(i<<1);
}
Bmemset(colhere,0,sizeof(colhere));
Bmemset(colhead,0,sizeof(colhead));
pal1 = (char *)&palette[768-3];
for (i=255; i>=0; i--,pal1-=3)
{
j = (pal1[0]>>3)*FASTPALGRIDSIZ*FASTPALGRIDSIZ
+ (pal1[1]>>3)*FASTPALGRIDSIZ + (pal1[2]>>3)
+ FASTPALGRIDSIZ*FASTPALGRIDSIZ + FASTPALGRIDSIZ+1;
if (colhere[j>>3]&pow2char[j&7]) colnext[i] = colhead[j]; else colnext[i] = -1;
colhead[j] = i;
colhere[j>>3] |= pow2char[j&7];
}
i = 0;
for (x=-FASTPALGRIDSIZ*FASTPALGRIDSIZ; x<=FASTPALGRIDSIZ*FASTPALGRIDSIZ; x+=FASTPALGRIDSIZ*FASTPALGRIDSIZ)
for (y=-FASTPALGRIDSIZ; y<=FASTPALGRIDSIZ; y+=FASTPALGRIDSIZ)
for (z=-1; z<=1; z++)
colscan[i++] = x+y+z;
i = colscan[13]; colscan[13] = colscan[26]; colscan[26] = i;
}
//
// loadpalette (internal)
//
static void loadpalette(void)
{
int32_t fil;
if (paletteloaded != 0) return;
if ((fil = kopen4load("palette.dat",0)) == -1) return;
kread(fil,palette,768);
kread(fil,&numpalookups,2); numpalookups = B_LITTLE16(numpalookups);
if ((palookup[0] = (char *)Bmalloc(numpalookups<<8)) == NULL)
allocache((intptr_t *)&palookup[0],numpalookups<<8,&permanentlock);
if ((transluc = (char *)Bmalloc(65536)) == NULL)
allocache((intptr_t *)&transluc,65536,&permanentlock);
globalpalwritten = palookup[0]; globalpal = 0;
setpalookupaddress(globalpalwritten);
fixtransluscence(FP_OFF(transluc));
kread(fil,palookup[globalpal],numpalookups<<8);
kread(fil,transluc,65536);
if (crc32once((uint8_t *)transluc, 65536)==0x94a1fac6)
{
int32_t i;
// fix up translucency table so that transluc(255,x)
// and transluc(x,255) is black instead of purple
for (i=0; i<256; i++)
{
transluc[(255<<8) + i] = transluc[i];
transluc[255 + (i<<8)] = transluc[i<<8];
}
}
kclose(fil);
initfastcolorlookup(30, 59, 11);
{
int32_t i, j, k = 0;
for (i=0; i<256; i++)
{
j = palette[i*3] + palette[i*3+1] + palette[i*3+2];
if (j > k) { k = j; whitecol = i; }
}
}
paletteloaded = 1;
}
//
// getclosestcol
//
int32_t getclosestcol(int32_t r, int32_t g, int32_t b)
{
int32_t i, j, k, dist, mindist, retcol;
char *pal1;
j = (r>>3)*FASTPALGRIDSIZ*FASTPALGRIDSIZ
+ (g>>3)*FASTPALGRIDSIZ + (b>>3)
+ FASTPALGRIDSIZ*FASTPALGRIDSIZ
+ FASTPALGRIDSIZ+1;
mindist = min(rdist[coldist[r&7]+64+8],gdist[coldist[g&7]+64+8]);
mindist = min(mindist,bdist[coldist[b&7]+64+8]);
mindist++;
r = 64-r; g = 64-g; b = 64-b;
retcol = -1;
for (k=26; k>=0; k--)
{
i = colscan[k]+j; if ((colhere[i>>3]&pow2char[i&7]) == 0) continue;
i = colhead[i];
do
{
pal1 = (char *)&palette[i*3];
dist = gdist[pal1[1]+g];
if (dist < mindist)
{
dist += rdist[pal1[0]+r];
if (dist < mindist)
{
dist += bdist[pal1[2]+b];
if (dist < mindist) { mindist = dist; retcol = i; }
}
}
i = colnext[i];
}
while (i >= 0);
}
if (retcol >= 0) return(retcol);
mindist = INT32_MAX;
pal1 = (char *)&palette[768-3];
for (i=255; i>=0; i--,pal1-=3)
{
dist = gdist[pal1[1]+g]; if (dist >= mindist) continue;
dist += rdist[pal1[0]+r]; if (dist >= mindist) continue;
dist += bdist[pal1[2]+b]; if (dist >= mindist) continue;
mindist = dist; retcol = i;
}
return(retcol);
}
//
// insertspritesect (internal)
//
int32_t insertspritesect(int16_t sectnum)
{
int16_t blanktouse;
if ((sectnum >= MAXSECTORS) || (headspritesect[MAXSECTORS] == -1))
return(-1); //list full
blanktouse = headspritesect[MAXSECTORS];
headspritesect[MAXSECTORS] = nextspritesect[blanktouse];
if (headspritesect[MAXSECTORS] >= 0)
prevspritesect[headspritesect[MAXSECTORS]] = -1;
prevspritesect[blanktouse] = -1;
nextspritesect[blanktouse] = headspritesect[sectnum];
if (headspritesect[sectnum] >= 0)
prevspritesect[headspritesect[sectnum]] = blanktouse;
headspritesect[sectnum] = blanktouse;
sprite[blanktouse].sectnum = sectnum;
return(blanktouse);
}
//
// insertspritestat (internal)
//
int32_t insertspritestat(int16_t statnum)
{
int16_t blanktouse;
if ((statnum >= MAXSTATUS) || (headspritestat[MAXSTATUS] == -1))
return(-1); //list full
blanktouse = headspritestat[MAXSTATUS];
headspritestat[MAXSTATUS] = nextspritestat[blanktouse];
if (headspritestat[MAXSTATUS] >= 0)
prevspritestat[headspritestat[MAXSTATUS]] = -1;
prevspritestat[blanktouse] = -1;
nextspritestat[blanktouse] = headspritestat[statnum];
if (headspritestat[statnum] >= 0)
prevspritestat[headspritestat[statnum]] = blanktouse;
headspritestat[statnum] = blanktouse;
sprite[blanktouse].statnum = statnum;
return(blanktouse);
}
//
// deletespritesect (internal)
//
int32_t deletespritesect(int16_t deleteme)
{
if (sprite[deleteme].sectnum == MAXSECTORS)
return(-1);
if (headspritesect[sprite[deleteme].sectnum] == deleteme)
headspritesect[sprite[deleteme].sectnum] = nextspritesect[deleteme];
if (prevspritesect[deleteme] >= 0) nextspritesect[prevspritesect[deleteme]] = nextspritesect[deleteme];
if (nextspritesect[deleteme] >= 0) prevspritesect[nextspritesect[deleteme]] = prevspritesect[deleteme];
if (headspritesect[MAXSECTORS] >= 0) prevspritesect[headspritesect[MAXSECTORS]] = deleteme;
prevspritesect[deleteme] = -1;
nextspritesect[deleteme] = headspritesect[MAXSECTORS];
headspritesect[MAXSECTORS] = deleteme;
sprite[deleteme].sectnum = MAXSECTORS;
return(0);
}
//
// deletespritestat (internal)
//
int32_t deletespritestat(int16_t deleteme)
{
if (sprite[deleteme].statnum == MAXSTATUS)
return(-1);
if (headspritestat[sprite[deleteme].statnum] == deleteme)
headspritestat[sprite[deleteme].statnum] = nextspritestat[deleteme];
if (prevspritestat[deleteme] >= 0) nextspritestat[prevspritestat[deleteme]] = nextspritestat[deleteme];
if (nextspritestat[deleteme] >= 0) prevspritestat[nextspritestat[deleteme]] = prevspritestat[deleteme];
if (headspritestat[MAXSTATUS] >= 0) prevspritestat[headspritestat[MAXSTATUS]] = deleteme;
prevspritestat[deleteme] = -1;
nextspritestat[deleteme] = headspritestat[MAXSTATUS];
headspritestat[MAXSTATUS] = deleteme;
sprite[deleteme].statnum = MAXSTATUS;
return(0);
}
//
// lintersect (internal)
//
static inline int32_t lintersect(int32_t x1, int32_t y1, int32_t z1, int32_t x2, int32_t y2, int32_t z2, int32_t x3,
int32_t y3, int32_t x4, int32_t y4, int32_t *intx, int32_t *inty, int32_t *intz)
{
//p1 to p2 is a line segment
int32_t x21, y21, x34, y34, x31, y31, bot, topt, topu, t;
x21 = x2-x1; x34 = x3-x4;
y21 = y2-y1; y34 = y3-y4;
bot = x21*y34 - y21*x34;
if (bot >= 0)
{
if (bot == 0) return(0);
x31 = x3-x1; y31 = y3-y1;
topt = x31*y34 - y31*x34; if ((topt < 0) || (topt >= bot)) return(0);
topu = x21*y31 - y21*x31; if ((topu < 0) || (topu >= bot)) return(0);
}
else
{
x31 = x3-x1; y31 = y3-y1;
topt = x31*y34 - y31*x34; if ((topt > 0) || (topt <= bot)) return(0);
topu = x21*y31 - y21*x31; if ((topu > 0) || (topu <= bot)) return(0);
}
t = divscale24(topt,bot);
*intx = x1 + mulscale24(x21,t);
*inty = y1 + mulscale24(y21,t);
*intz = z1 + mulscale24(z2-z1,t);
return(1);
}
int32_t lineintersect(int32_t x1, int32_t y1, int32_t z1, int32_t x2, int32_t y2, int32_t z2, int32_t x3,
int32_t y3, int32_t x4, int32_t y4, int32_t *intx, int32_t *inty, int32_t *intz)
{
return lintersect(x1, y1, z1, x2, y2, z2, x3, y3, x4, y4, intx, inty, intz);
}
//
// rintersect (internal)
//
static inline int32_t rintersect(int32_t x1, int32_t y1, int32_t z1, int32_t vx, int32_t vy, int32_t vz, int32_t x3,
int32_t y3, int32_t x4, int32_t y4, int32_t *intx, int32_t *inty, int32_t *intz)
{
//p1 towards p2 is a ray
int32_t x34, y34, x31, y31, bot, topt, topu, t;
x34 = x3-x4; y34 = y3-y4;
bot = vx*y34 - vy*x34;
if (bot >= 0)
{
if (bot == 0) return(0);
x31 = x3-x1; y31 = y3-y1;
topt = x31*y34 - y31*x34; if (topt < 0) return(0);
topu = vx*y31 - vy*x31; if ((topu < 0) || (topu >= bot)) return(0);
}
else
{
x31 = x3-x1; y31 = y3-y1;
topt = x31*y34 - y31*x34; if (topt > 0) return(0);
topu = vx*y31 - vy*x31; if ((topu > 0) || (topu <= bot)) return(0);
}
t = divscale16(topt,bot);
*intx = x1 + mulscale16(vx,t);
*inty = y1 + mulscale16(vy,t);
*intz = z1 + mulscale16(vz,t);
return(1);
}
int32_t rayintersect(int32_t x1, int32_t y1, int32_t z1, int32_t vx, int32_t vy, int32_t vz, int32_t x3,
int32_t y3, int32_t x4, int32_t y4, int32_t *intx, int32_t *inty, int32_t *intz)
{
return rintersect(x1, y1, z1, vx, vy, vz, x3, y3, x4, y4, intx, inty, intz);
}
//
// keepaway (internal)
//
static inline void keepaway(int32_t *x, int32_t *y, int32_t w)
{
int32_t dx, dy, ox, oy, x1, y1;
char first;
x1 = clipit[w].x1; dx = clipit[w].x2-x1;
y1 = clipit[w].y1; dy = clipit[w].y2-y1;
ox = ksgn(-dy); oy = ksgn(dx);
first = (klabs(dx) <= klabs(dy));
while (1)
{
if (dx*(*y-y1) > (*x-x1)*dy) return;
if (first == 0) *x += ox; else *y += oy;
first ^= 1;
}
}
//
// raytrace (internal)
//
static inline int32_t raytrace(int32_t x3, int32_t y3, int32_t *x4, int32_t *y4)
{
int32_t x1, y1, x2, y2, bot, topu, nintx, ninty, cnt, z, hitwall;
int32_t x21, y21, x43, y43;
hitwall = -1;
for (z=clipnum-1; z>=0; z--)
{
x1 = clipit[z].x1; x2 = clipit[z].x2; x21 = x2-x1;
y1 = clipit[z].y1; y2 = clipit[z].y2; y21 = y2-y1;
topu = x21*(y3-y1) - (x3-x1)*y21; if (topu <= 0) continue;
if (x21*(*y4-y1) > (*x4-x1)*y21) continue;
x43 = *x4-x3; y43 = *y4-y3;
if (x43*(y1-y3) > (x1-x3)*y43) continue;
if (x43*(y2-y3) <= (x2-x3)*y43) continue;
bot = x43*y21 - x21*y43; if (bot == 0) continue;
cnt = 256;
do
{
cnt--; if (cnt < 0) { *x4 = x3; *y4 = y3; return(z); }
nintx = x3 + scale(x43,topu,bot);
ninty = y3 + scale(y43,topu,bot);
topu--;
}
while (x21*(ninty-y1) <= (nintx-x1)*y21);
if (klabs(x3-nintx)+klabs(y3-ninty) < klabs(x3-*x4)+klabs(y3-*y4))
{ *x4 = nintx; *y4 = ninty; hitwall = z; }
}
return(hitwall);
}
//
// Exported Engine Functions
//
#if !defined _WIN32 && defined DEBUGGINGAIDS
#include <signal.h>
static void sighandler(int32_t sig, const siginfo_t *info, void *ctx)
{
const char *s;
UNREFERENCED_PARAMETER(ctx);
switch (sig)
{
case SIGFPE:
switch (info->si_code)
{
case FPE_INTDIV:
s = "FPE_INTDIV (integer divide by zero)"; break;
case FPE_INTOVF:
s = "FPE_INTOVF (integer overflow)"; break;
case FPE_FLTDIV:
s = "FPE_FLTDIV (floating-point divide by zero)"; break;
case FPE_FLTOVF:
s = "FPE_FLTOVF (floating-point overflow)"; break;
case FPE_FLTUND:
s = "FPE_FLTUND (floating-point underflow)"; break;
case FPE_FLTRES:
s = "FPE_FLTRES (floating-point inexact result)"; break;
case FPE_FLTINV:
s = "FPE_FLTINV (floating-point invalid operation)"; break;
case FPE_FLTSUB:
s = "FPE_FLTSUB (floating-point subscript out of range)"; break;
default:
s = "?! (unknown)"; break;
}
ERRprintf("Caught SIGFPE at address %p, code %s. Aborting.\n", info->si_addr, s);
break;
default:
break;
}
abort();
}
#endif
//
// preinitengine
//
static int32_t preinitcalled = 0;
// #define DYNALLOC_ARRAYS
#ifndef DYNALLOC_ARRAYS
# if !defined DEBUG_MAIN_ARRAYS
static spriteext_t spriteext_s[MAXSPRITES+MAXUNIQHUDID];
static spritesmooth_t spritesmooth_s[MAXSPRITES+MAXUNIQHUDID];
static sectortype sector_s[MAXSECTORS + M32_FIXME_SECTORS];
static walltype wall_s[MAXWALLS + M32_FIXME_WALLS];
static spritetype sprite_s[MAXSPRITES];
static spritetype tsprite_s[MAXSPRITESONSCREEN];
# endif
#else
void *blockptr = NULL;
#endif
int32_t preinitengine(void)
{
char *e;
if (initsystem()) exit(9);
makeasmwriteable();
#ifdef DYNALLOC_ARRAYS
{
size_t i, size = 0;
// allocate everything at once... why not? entries can just be added to this table
// to allocate future arrays without further intervention
struct
{
void **ptr;
size_t size;
}
dynarray[] =
{
{ (void **) &sector, sizeof(sectortype) *MAXSECTORS },
{ (void **) &wall, sizeof(walltype) *MAXWALLS }, // +512: editor quirks. FIXME!
{ (void **) &sprite, sizeof(spritetype) *MAXSPRITES },
{ (void **) &tsprite, sizeof(spritetype) *MAXSPRITESONSCREEN },
{ (void **) &spriteext, sizeof(spriteext_t) *(MAXSPRITES+MAXUNIQHUDID) },
{ (void **) &spritesmooth, sizeof(spritesmooth_t) *(MAXSPRITES+MAXUNIQHUDID) },
{ (void **) &state_compress, sizeof(qlz_state_compress) },
{ (void **) &state_decompress, sizeof(qlz_state_decompress) }
};
if (editstatus)
{
dynarray[0].size += M32_FIXME_SECTORS*sizeof(sectortype); // join sectors needs a temp. sector
dynarray[1].size += M32_FIXME_WALLS*sizeof(walltype);
// Bprintf("FIXME: Allocating additional space beyond wall[] for editor bugs.\n");
}
for (i=0; i<(signed)(sizeof(dynarray)/sizeof(dynarray[0])); i++)
size += dynarray[i].size;
if ((blockptr = Bcalloc(1, size)) == NULL)
return 1;
size = 0;
for (i=0; i<(signed)(sizeof(dynarray)/sizeof(dynarray[0])); i++)
{
*dynarray[i].ptr = (int8_t *)blockptr + size;
size += dynarray[i].size;
}
}
#else
# if !defined DEBUG_MAIN_ARRAYS
sector = sector_s;
wall = wall_s;
sprite = sprite_s;
tsprite = tsprite_s;
spriteext = spriteext_s;
spritesmooth = spritesmooth_s;
# endif
state_compress = (qlz_state_compress *) Bcalloc(sizeof(qlz_state_compress) + sizeof(qlz_state_decompress), 1);
state_decompress = (qlz_state_decompress *)((int8_t *)(state_compress) + sizeof(qlz_state_compress));
#endif
if ((e = Bgetenv("BUILD_NOP6")) != NULL)
if (!Bstrcasecmp(e, "TRUE"))
{
Bprintf("Disabling P6 optimizations.\n");
dommxoverlay = 0;
}
if (dommxoverlay) mmxoverlay();
validmodecnt = 0;
getvalidmodes();
initcrc32table();
#ifdef HAVE_CLIPSHAPE_FEATURE
clipmapinfo_init();
#endif
preinitcalled = 1;
return 0;
}
//
// initengine
//
int32_t initengine(void)
{
int32_t i, j;
#if !defined _WIN32 && defined DEBUGGINGAIDS
struct sigaction sigact, oldact;
memset(&sigact, 0, sizeof(sigact));
sigact.sa_sigaction = (void *)sighandler;
sigact.sa_flags = SA_SIGINFO;
sigaction(SIGFPE, &sigact, &oldact);
#endif
if (!preinitcalled)
{
i = preinitengine();
if (i) return i;
}
#ifdef YAX_DEBUG
hitickspersec = (double)gethitickspersec();
if (hitickspersec==0.0)
hitickspersec = 1.0;
#endif
if (loadtables()) return 1;
xyaspect = -1;
pskyoff[0] = 0; pskybits = 0;
pskynummultis = 0;
parallaxtype = 2; parallaxyoffs = 0L; parallaxyscale = 65536;
showinvisibility = 0;
for (i=1; i<1024; i++) lowrecip[i] = ((1<<24)-1)/i;
for (i=0; i<MAXVOXELS; i++)
for (j=0; j<MAXVOXMIPS; j++)
{
voxoff[i][j] = 0L;
voxlock[i][j] = 200;
}
for (i=0; i<MAXTILES; i++)
tiletovox[i] = -1;
clearbuf(&voxscale[0],sizeof(voxscale)>>2,65536L);
paletteloaded = 0;
searchit = 0; searchstat = -1;
// for (i=0; i<MAXPALOOKUPS; i++) palookup[i] = NULL;
/*
clearbuf(&waloff[0],(int32_t)MAXTILES,0L);
clearbuf(&show2dsector[0],(int32_t)((MAXSECTORS+3)>>5),0L);
clearbuf(&show2dsprite[0],(int32_t)((MAXSPRITES+3)>>5),0L);
clearbuf(&show2dwall[0],(int32_t)((MAXWALLS+3)>>5),0L);
*/
// automapping = 0;
totalclock = 0;
visibility = 512;
parallaxvisibility = 512;
loadpalette();
#ifdef USE_OPENGL
if (!hicfirstinit) hicinit();
if (!mdinited) mdinit();
#endif
return 0;
}
//
// uninitengine
//
void uninitengine(void)
{
int32_t i;
//OSD_Printf("cacheresets = %d, cacheinvalidates = %d\n", cacheresets, cacheinvalidates);
#ifdef USE_OPENGL
polymost_glreset();
hicinit();
freeallmodels();
# ifdef POLYMER
polymer_uninit();
# endif
#endif
if (artfil != -1)
kclose(artfil);
// this leaves a bunch of invalid pointers in waloff... fixme?
for (i=0; i<MAXTILEFILES; i++)
{
if (artptrs[i])
{
Bfree(artptrs[i]);
artptrs[i] = NULL;
}
}
if (transluc != NULL) { Bfree(transluc); transluc = NULL; }
if (pic != NULL) { Bfree(pic); pic = NULL; }
if (lookups != NULL)
{
Bfree((void *)lookups);
lookups = NULL;
}
for (i=0; i<MAXPALOOKUPS; i++)
if (palookup[i] != NULL) { Bfree(palookup[i]); palookup[i] = NULL; }
#ifdef DYNALLOC_ARRAYS
if (blockptr != NULL)
Bfree(blockptr);
#else
if (state_compress) Bfree(state_compress);
#endif
uninitsystem();
}
//
// initspritelists
//
void initspritelists(void)
{
int32_t i;
for (i=0; i<MAXSECTORS; i++) //Init doubly-linked sprite sector lists
headspritesect[i] = -1;
headspritesect[MAXSECTORS] = 0;
for (i=0; i<MAXSPRITES; i++)
{
prevspritesect[i] = i-1;
nextspritesect[i] = i+1;
sprite[i].sectnum = MAXSECTORS;
}
prevspritesect[0] = -1;
nextspritesect[MAXSPRITES-1] = -1;
for (i=0; i<MAXSTATUS; i++) //Init doubly-linked sprite status lists
headspritestat[i] = -1;
headspritestat[MAXSTATUS] = 0;
for (i=0; i<MAXSPRITES; i++)
{
prevspritestat[i] = i-1;
nextspritestat[i] = i+1;
sprite[i].statnum = MAXSTATUS;
}
prevspritestat[0] = -1;
nextspritestat[MAXSPRITES-1] = -1;
}
//
// drawrooms
//
void drawrooms(int32_t daposx, int32_t daposy, int32_t daposz,
int16_t daang, int32_t dahoriz, int16_t dacursectnum)
{
int32_t i, j, /*cz, fz,*/ closest;
int16_t *shortptr1, *shortptr2;
beforedrawrooms = 0;
indrawroomsandmasks = 1;
globalposx = daposx; globalposy = daposy; globalposz = daposz;
globalang = (daang&2047);
globalhoriz = mulscale16(dahoriz-100,xdimenscale)+(ydimen>>1);
globaluclip = (0-globalhoriz)*xdimscale;
globaldclip = (ydimen-globalhoriz)*xdimscale;
i = mulscale16(xdimenscale,viewingrangerecip);
globalpisibility = mulscale16(parallaxvisibility,i);
switch (getrendermode())
{
// switch on renderers to make fog look almost the same everywhere
case 0:
globalvisibility = mulscale16(visibility,i);
break;
#ifdef USE_OPENGL
case 3:
// I have no idea what the significance of this constant is,
// it was found out experimentally. v v
globalvisibility = scale(visibility<<2, xdimen, 1100);
break;
# ifdef POLYMER
case 4:
globalvisibility = visibility<<2;
break;
# endif
#endif
}
globalhisibility = mulscale16(globalvisibility,xyaspect);
globalcisibility = mulscale8(globalhisibility,320);
globalcursectnum = dacursectnum;
totalclocklock = totalclock;
cosglobalang = sintable[(globalang+512)&2047];
singlobalang = sintable[globalang&2047];
cosviewingrangeglobalang = mulscale16(cosglobalang,viewingrange);
sinviewingrangeglobalang = mulscale16(singlobalang,viewingrange);
if ((xyaspect != oxyaspect) || (xdimen != oxdimen) || (viewingrange != oviewingrange))
dosetaspect();
//clearbufbyte(&gotsector[0],(int32_t)((numsectors+7)>>3),0L);
Bmemset(&gotsector[0],0,(int32_t)((numsectors+7)>>3));
if (getrendermode()!=0
#ifdef YAX_ENABLE
|| yax_globallev==YAX_MAXDRAWS
#endif
)
{
shortptr1 = (int16_t *)&startumost[windowx1];
shortptr2 = (int16_t *)&startdmost[windowx1];
i = xdimen-1;
do
{
umost[i] = shortptr1[i]-windowy1;
dmost[i] = shortptr2[i]-windowy1;
i--;
}
while (i != 0);
umost[0] = shortptr1[0]-windowy1;
dmost[0] = shortptr2[0]-windowy1;
}
#ifdef USE_OPENGL
# ifdef POLYMER
if (rendmode == 4)
{
# ifdef YAX_ENABLE
// BEGIN_TWEAK ceiling/floor fake 'TROR' pics, see END_TWEAK in build.c
if (editstatus && showinvisibility)
{
for (i=0; i<numyaxbunches; i++)
{
yax_tweakpicnums(i, YAX_CEILING, 0);
yax_tweakpicnums(i, YAX_FLOOR, 0);
}
}
# endif
polymer_glinit();
polymer_drawrooms(daposx, daposy, daposz, daang, dahoriz, dacursectnum);
bglDisable(GL_CULL_FACE);
gloy1 = 0;
return;
}
# endif
//============================================================================= //POLYMOST BEGINS
polymost_drawrooms();
if (rendmode)
return;
//============================================================================= //POLYMOST ENDS
#endif
begindrawing(); //{{{
#ifdef ENGINE_CLEAR_SCREEN
#ifdef YAX_ENABLE
if (!g_nodraw)
#endif
if (numyaxbunches==0)
for (i=0; i<xdimen*ydimen; i++)
*((char *)frameplace + i) = i;
#endif
//frameoffset = frameplace + viewoffset;
frameoffset = frameplace + windowy1*bytesperline + windowx1;
//if (smostwallcnt < 0)
// if (getkensmessagecrc(FP_OFF(kensmessage)) != 0x56c764d4)
// { /* setvmode(0x3);*/ OSD_Printf("Nice try.\n"); exit(0); }
numhits = xdimen; numscans = 0; numbunches = 0;
maskwallcnt = 0; smostwallcnt = 0; smostcnt = 0; spritesortcnt = 0;
#ifdef YAX_ENABLE
if (yax_globallev != YAX_MAXDRAWS)
{
j = yax_globalbunch*xdimen;
Bmemcpy(umost, yumost+j, xdimen*sizeof(int16_t));
Bmemcpy(dmost, ydmost+j, xdimen*sizeof(int16_t));
for (i=0; i<xdimen; i++)
if (umost[i] > dmost[i])
numhits--;
// yaxdebug("cf %d, tlev %d, bunch %d: numhits=%d", yax_globalcf, yax_globallev, yax_globalbunch, numhits);
}
#endif
if (globalcursectnum >= MAXSECTORS)
globalcursectnum -= MAXSECTORS;
else
{
i = globalcursectnum;
updatesector(globalposx,globalposy,&globalcursectnum);
if (globalcursectnum < 0) globalcursectnum = i;
// PK 20110123: I'm not sure what the line above is supposed to do, but 'i'
// *can* be negative, so let's just quit here in that case...
if (globalcursectnum<0)
{
enddrawing(); //!!!
return;
}
}
/*
globparaceilclip = 1;
globparaflorclip = 1;
getzsofslope(globalcursectnum,globalposx,globalposy,&cz,&fz);
if (globalposz < cz) globparaceilclip = 0;
if (globalposz > fz) globparaflorclip = 0;
*/
scansector(globalcursectnum);
if (inpreparemirror)
{
// numbunches==0 can happen if the mirror is far away... the game code decides
// to draw it, but scansector gets zero bunches. Result: big screwup!
// Leave inpreparemirror as is, it's restored by completemirror.
if (numbunches==0)
{
enddrawing(); //!!!
return;
}
inpreparemirror = 0;
mirrorsx1 = xdimen-1; mirrorsx2 = 0;
for (i=numscans-1; i>=0; i--)
{
if (wall[thewall[i]].nextsector < 0) continue;
if (xb1[i] < mirrorsx1) mirrorsx1 = xb1[i];
if (xb2[i] > mirrorsx2) mirrorsx2 = xb2[i];
}
for (i=0; i<mirrorsx1; i++)
if (umost[i] <= dmost[i])
{ umost[i] = 1; dmost[i] = 0; numhits--; }
for (i=mirrorsx2+1; i<xdimen; i++)
if (umost[i] <= dmost[i])
{ umost[i] = 1; dmost[i] = 0; numhits--; }
drawalls(0L);
numbunches--;
bunchfirst[0] = bunchfirst[numbunches];
bunchlast[0] = bunchlast[numbunches];
mirrorsy1 = min(umost[mirrorsx1],umost[mirrorsx2]);
mirrorsy2 = max(dmost[mirrorsx1],dmost[mirrorsx2]);
}
while ((numbunches > 0) && (numhits > 0))
{
Bmemset(tempbuf, 0, numbunches);
tempbuf[0] = 1;
closest = 0; //Almost works, but not quite :(
for (i=1; i<numbunches; i++)
{
if ((j = bunchfront(i,closest)) < 0) continue;
tempbuf[i] = 1;
if (j == 0) tempbuf[closest] = 1, closest = i;
}
for (i=0; i<numbunches; i++) //Double-check
{
if (tempbuf[i]) continue;
if ((j = bunchfront(i,closest)) < 0) continue;
tempbuf[i] = 1;
if (j == 0) tempbuf[closest] = 1, closest = i, i = 0;
}
drawalls(closest);
// if (automapping)
// {
// for (z=bunchfirst[closest]; z>=0; z=p2[z])
// show2dwall[thewall[z]>>3] |= pow2char[thewall[z]&7];
// }
numbunches--;
bunchfirst[closest] = bunchfirst[numbunches];
bunchlast[closest] = bunchlast[numbunches];
}
enddrawing(); //}}}
}
// UTILITY TYPES AND FUNCTIONS FOR DRAWMASKS OCCLUSION TREE
// typedef struct s_maskleaf
// {
// int32_t index;
// _point2d p1, p2;
// _equation maskeq, p1eq, p2eq;
// struct s_maskleaf* branch[MAXWALLSB];
// int32_t drawing;
// } _maskleaf;
//
// _maskleaf maskleaves[MAXWALLSB];
// returns equation of a line given two points
static inline _equation equation(float x1, float y1, float x2, float y2)
{
_equation ret;
if ((x2 - x1) != 0)
{
ret.a = (float)(y2 - y1)/(float)(x2 - x1);
ret.b = -1;
ret.c = (y1 - (ret.a * x1));
}
else // vertical
{
ret.a = 1;
ret.b = 0;
ret.c = -x1;
}
return (ret);
}
int32_t wallvisible(int32_t x, int32_t y, int16_t wallnum)
{
// 1 if wall is in front of player 0 otherwise
int32_t a1, a2;
walltype *w1, *w2;
w1 = &wall[wallnum];
w2 = &wall[w1->point2];
a1 = getangle(w1->x - x, w1->y - y);
a2 = getangle(w2->x - x, w2->y - y);
//if ((wallnum == 23) || (wallnum == 9))
// OSD_Printf("Wall %d : %d - sector %d - x %d - y %d.\n", wallnum, (a2 + (2048 - a1)) & 2047, globalcursectnum, globalposx, globalposy);
if (((a2 + (2048 - a1)) & 2047) <= 1024)
return (1);
return (0);
}
#if 0
// returns the intersection point between two lines
_point2d intersection(_equation eq1, _equation eq2)
{
_point2d ret;
float det;
det = (float)(1) / (eq1.a*eq2.b - eq2.a*eq1.b);
ret.x = ((eq1.b*eq2.c - eq2.b*eq1.c) * det);
ret.y = ((eq2.a*eq1.c - eq1.a*eq2.c) * det);
return (ret);
}
// check if a point that's on the line is within the segment boundaries
int32_t pointonmask(_point2d point, _maskleaf* wall)
{
if ((min(wall->p1.x, wall->p2.x) <= point.x) && (point.x <= max(wall->p1.x, wall->p2.x)) && (min(wall->p1.y, wall->p2.y) <= point.y) && (point.y <= max(wall->p1.y, wall->p2.y)))
return (1);
return (0);
}
// returns 1 if wall2 is hidden by wall1
int32_t wallobstructswall(_maskleaf* wall1, _maskleaf* wall2)
{
_point2d cross;
cross = intersection(wall2->p1eq, wall1->maskeq);
if (pointonmask(cross, wall1))
return (1);
cross = intersection(wall2->p2eq, wall1->maskeq);
if (pointonmask(cross, wall1))
return (1);
cross = intersection(wall1->p1eq, wall2->maskeq);
if (pointonmask(cross, wall2))
return (1);
cross = intersection(wall1->p2eq, wall2->maskeq);
if (pointonmask(cross, wall2))
return (1);
return (0);
}
// recursive mask drawing function
static inline void drawmaskleaf(_maskleaf* wall)
{
int32_t i;
wall->drawing = 1;
i = 0;
while (wall->branch[i] != NULL)
{
if (wall->branch[i]->drawing == 0)
{
//OSD_Printf("Drawing parent of %i : mask %i\n", wall->index, wall->branch[i]->index);
drawmaskleaf(wall->branch[i]);
}
i++;
}
//OSD_Printf("Drawing mask %i\n", wall->index);
drawmaskwall(wall->index);
}
#endif
static inline int32_t sameside(_equation *eq, _point2d *p1, _point2d *p2)
{
float sign1, sign2;
sign1 = eq->a * p1->x + eq->b * p1->y + eq->c;
sign2 = eq->a * p2->x + eq->b * p2->y + eq->c;
sign1 = sign1 * sign2;
if (sign1 > 0)
{
//OSD_Printf("SAME SIDE !\n");
return (1);
}
//OSD_Printf("OPPOSITE SIDE !\n");
return (0);
}
//
// drawmasks
//
void drawmasks(void)
{
int32_t i, j, k, l, gap, xs, ys, xp, yp, yoff, yspan, modelp=0;
// PLAG: sorting stuff
_equation maskeq, p1eq, p2eq;
_point2d dot, dot2, middle, pos, spr;
for (i=spritesortcnt-1; i>=0; i--) tspriteptr[i] = &tsprite[i];
for (i=spritesortcnt-1; i>=0; i--)
{
xs = tspriteptr[i]->x-globalposx; ys = tspriteptr[i]->y-globalposy;
yp = dmulscale6(xs,cosviewingrangeglobalang,ys,sinviewingrangeglobalang);
#ifdef USE_OPENGL
// WGR2 SVN sanguis regalis (vae victis) ->picnum == -3 or -4 (hard to reproduce)
modelp = (usemodels && tile2model[tspriteptr[i]->picnum].modelid >= 0);
#endif
if (yp > (4<<8))
{
xp = dmulscale6(ys,cosglobalang,-xs,singlobalang);
if (mulscale24(labs(xp+yp),xdimen) >= yp) goto killsprite;
spritesx[i] = scale(xp+yp,xdimen<<7,yp);
}
else if ((tspriteptr[i]->cstat&48) == 0)
{
killsprite:
if (!modelp)
{
spritesortcnt--; //Delete face sprite if on wrong side!
if (i == spritesortcnt) continue;
tspriteptr[i] = tspriteptr[spritesortcnt];
spritesx[i] = spritesx[spritesortcnt];
spritesy[i] = spritesy[spritesortcnt];
continue;
}
}
spritesy[i] = yp;
}
{
gap = 1; while (gap < spritesortcnt) gap = (gap<<1)+1;
for (gap>>=1; gap>0; gap>>=1) //Sort sprite list
for (i=0; i<spritesortcnt-gap; i++)
for (l=i; l>=0; l-=gap)
{
if (spritesy[l] <= spritesy[l+gap]) break;
swaplong(&tspriteptr[l],&tspriteptr[l+gap]);
swaplong(&spritesx[l],&spritesx[l+gap]);
swaplong(&spritesy[l],&spritesy[l+gap]);
}
if (spritesortcnt > 0)
spritesy[spritesortcnt] = (spritesy[spritesortcnt-1]^1);
ys = spritesy[0]; i = 0;
for (j=1; j<=spritesortcnt; j++)
{
if (spritesy[j] == ys) continue;
ys = spritesy[j];
if (j > i+1)
{
for (k=i; k<j; k++)
{
spritesz[k] = tspriteptr[k]->z;
if ((tspriteptr[k]->cstat&48) != 32)
{
yoff = (int32_t)((int8_t)((picanm[tspriteptr[k]->picnum]>>16)&255))+((int32_t)tspriteptr[k]->yoffset);
spritesz[k] -= ((yoff*tspriteptr[k]->yrepeat)<<2);
yspan = (tilesizy[tspriteptr[k]->picnum]*tspriteptr[k]->yrepeat<<2);
if (!(tspriteptr[k]->cstat&128)) spritesz[k] -= (yspan>>1);
if (klabs(spritesz[k]-globalposz) < (yspan>>1)) spritesz[k] = globalposz;
}
}
for (k=i+1; k<j; k++)
for (l=i; l<k; l++)
if (klabs(spritesz[k]-globalposz) < klabs(spritesz[l]-globalposz))
{
swaplong(&tspriteptr[k],&tspriteptr[l]);
swaplong(&spritesx[k],&spritesx[l]);
swaplong(&spritesy[k],&spritesy[l]);
swaplong(&spritesz[k],&spritesz[l]);
}
for (k=i+1; k<j; k++)
for (l=i; l<k; l++)
if (tspriteptr[k]->statnum < tspriteptr[l]->statnum)
{
swaplong(&tspriteptr[k],&tspriteptr[l]);
swaplong(&spritesx[k],&spritesx[l]);
swaplong(&spritesy[k],&spritesy[l]);
}
}
i = j;
}
}
begindrawing(); //{{{
/*for(i=spritesortcnt-1;i>=0;i--)
{
xs = tspriteptr[i].x-globalposx;
ys = tspriteptr[i].y-globalposy;
zs = tspriteptr[i].z-globalposz;
xp = ys*cosglobalang-xs*singlobalang;
yp = (zs<<1);
zp = xs*cosglobalang+ys*singlobalang;
xs = scale(xp,halfxdimen<<12,zp)+((halfxdimen+windowx1)<<12);
ys = scale(yp,xdimenscale<<12,zp)+((globalhoriz+windowy1)<<12);
drawline256(xs-65536,ys-65536,xs+65536,ys+65536,31);
drawline256(xs+65536,ys-65536,xs-65536,ys+65536,31);
}*/
{
#ifdef USE_OPENGL
curpolygonoffset = 0;
cullcheckcnt = 0;
#endif
pos.x = (float)globalposx;
pos.y = (float)globalposy;
while (maskwallcnt)
{
maskwallcnt--;
#if defined(USE_OPENGL) && defined(POLYMER)
if (rendmode == 4)
{
dot.x = (float)wall[maskwall[maskwallcnt]].x;
dot.y = (float)wall[maskwall[maskwallcnt]].y;
dot2.x = (float)wall[wall[maskwall[maskwallcnt]].point2].x;
dot2.y = (float)wall[wall[maskwall[maskwallcnt]].point2].y;
}
else
#endif
{
dot.x = (float)wall[thewall[maskwall[maskwallcnt]]].x;
dot.y = (float)wall[thewall[maskwall[maskwallcnt]]].y;
dot2.x = (float)wall[wall[thewall[maskwall[maskwallcnt]]].point2].x;
dot2.y = (float)wall[wall[thewall[maskwall[maskwallcnt]]].point2].y;
}
maskeq = equation(dot.x, dot.y, dot2.x, dot2.y);
p1eq = equation(pos.x, pos.y, dot.x, dot.y);
p2eq = equation(pos.x, pos.y, dot2.x, dot2.y);
middle.x = (dot.x + dot2.x) / 2;
middle.y = (dot.y + dot2.y) / 2;
i = spritesortcnt;
while (i)
{
i--;
if (tspriteptr[i] != NULL)
{
spr.x = (float)tspriteptr[i]->x;
spr.y = (float)tspriteptr[i]->y;
if ((sameside(&maskeq, &spr, &pos) == 0) && sameside(&p1eq, &middle, &spr) && sameside(&p2eq, &middle, &spr))
{
drawsprite(i);
tspriteptr[i] = NULL;
}
}
}
drawmaskwall(maskwallcnt);
}
while (spritesortcnt)
{
spritesortcnt--;
if (tspriteptr[spritesortcnt] != NULL)
drawsprite(spritesortcnt);
}
#ifdef USE_OPENGL
if (totalclock < lastcullcheck - CULL_DELAY)
lastcullcheck = totalclock;
if (totalclock >= lastcullcheck + CULL_DELAY)
lastcullcheck = (totalclock + CULL_DELAY);
#endif
}
#ifdef POLYMER
if (rendmode == 4) {
polymer_drawmasks();
}
#endif
indrawroomsandmasks = 0;
enddrawing(); //}}}
}
//
// drawmapview
//
void drawmapview(int32_t dax, int32_t day, int32_t zoome, int16_t ang)
{
walltype *wal;
sectortype *sec;
spritetype *spr;
int32_t tilenum, xoff, yoff, i, j, k, l, cosang, sinang, xspan, yspan;
int32_t xrepeat, yrepeat, x, y, x1, y1, x2, y2, x3, y3, x4, y4, bakx1, baky1;
int32_t s, w, ox, oy, startwall, cx1, cy1, cx2, cy2;
int32_t bakgxvect, bakgyvect, sortnum, gap, npoints;
int32_t xvect, yvect, xvect2, yvect2, daslope;
int32_t oydim=ydim;
int32_t oyxaspect=yxaspect, oviewingrange=viewingrange;
ydim = (int32_t)((double)xdim * 0.625f);
setaspect(65536L,(int32_t)divscale16(ydim*320L,xdim*200L));
ydim = oydim;
beforedrawrooms = 0;
clearbuf(&gotsector[0],(int32_t)((numsectors+31)>>5),0L);
cx1 = (windowx1<<12); cy1 = (windowy1<<12);
cx2 = ((windowx2+1)<<12)-1; cy2 = ((windowy2+1)<<12)-1;
zoome <<= 8;
bakgxvect = divscale28(sintable[(1536-ang)&2047],zoome);
bakgyvect = divscale28(sintable[(2048-ang)&2047],zoome);
xvect = mulscale8(sintable[(2048-ang)&2047],zoome);
yvect = mulscale8(sintable[(1536-ang)&2047],zoome);
xvect2 = mulscale16(xvect,yxaspect);
yvect2 = mulscale16(yvect,yxaspect);
sortnum = 0;
begindrawing(); //{{{
for (s=0,sec=&sector[s]; s<numsectors; s++,sec++)
if (show2dsector[s>>3]&pow2char[s&7])
{
npoints = 0; i = 0;
startwall = sec->wallptr;
#if 0
for (w=sec->wallnum,wal=&wall[startwall]; w>0; w--,wal++)
{
ox = wal->x - dax; oy = wal->y - day;
x = dmulscale16(ox,xvect,-oy,yvect) + (xdim<<11);
y = dmulscale16(oy,xvect2,ox,yvect2) + (ydim<<11);
i |= getclipmask(x-cx1,cx2-x,y-cy1,cy2-y);
rx1[npoints] = x;
ry1[npoints] = y;
xb1[npoints] = wal->point2 - startwall;
npoints++;
}
#else
j = startwall; l = 0;
for (w=sec->wallnum,wal=&wall[startwall]; w>0; w--,wal++,j++)
{
k = lastwall(j);
if ((k > j) && (npoints > 0)) { xb1[npoints-1] = l; l = npoints; } //overwrite point2
//wall[k].x wal->x wall[wal->point2].x
//wall[k].y wal->y wall[wal->point2].y
if (!dmulscale1(wal->x-wall[k].x,wall[wal->point2].y-wal->y,-(wal->y-wall[k].y),wall[wal->point2].x-wal->x)) continue;
ox = wal->x - dax; oy = wal->y - day;
x = dmulscale16(ox,xvect,-oy,yvect) + (xdim<<11);
y = dmulscale16(oy,xvect2,ox,yvect2) + (ydim<<11);
i |= getclipmask(x-cx1,cx2-x,y-cy1,cy2-y);
rx1[npoints] = x;
ry1[npoints] = y;
xb1[npoints] = npoints+1;
npoints++;
}
if (npoints > 0) xb1[npoints-1] = l; //overwrite point2
#endif
if ((i&0xf0) != 0xf0) continue;
bakx1 = rx1[0]; baky1 = mulscale16(ry1[0]-(ydim<<11),xyaspect)+(ydim<<11);
if (i&0x0f)
{
npoints = clippoly(npoints,i);
if (npoints < 3) continue;
}
//Collect floor sprites to draw
for (i=headspritesect[s]; i>=0; i=nextspritesect[i])
if ((sprite[i].cstat&48) == 32)
{
if ((sprite[i].cstat&(64+8)) == (64+8)) continue;
tsprite[sortnum++].owner = i;
}
gotsector[s>>3] |= pow2char[s&7];
globalorientation = (int32_t)sec->floorstat;
if ((globalorientation&1) != 0) continue;
globalpal = sec->floorpal;
if (palookup[sec->floorpal] != globalpalwritten)
{
globalpalwritten = palookup[sec->floorpal];
if (!globalpalwritten) globalpalwritten = palookup[0]; // JBF: fixes null-pointer crash
setpalookupaddress(globalpalwritten);
}
globalpicnum = sec->floorpicnum;
if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0;
setgotpic(globalpicnum);
if ((tilesizx[globalpicnum] <= 0) || (tilesizy[globalpicnum] <= 0)) continue;
if ((picanm[globalpicnum]&192) != 0) globalpicnum += animateoffs((int16_t)globalpicnum,s);
if (waloff[globalpicnum] == 0) loadtile(globalpicnum);
globalbufplc = waloff[globalpicnum];
globalshade = max(min(sec->floorshade,numpalookups-1),0);
globvis = globalhisibility;
if (sec->visibility != 0) globvis = mulscale4(globvis,(int32_t)((uint8_t)(sec->visibility+16)));
globalpolytype = 0;
if ((globalorientation&64) == 0)
{
globalposx = dax; globalx1 = bakgxvect; globaly1 = bakgyvect;
globalposy = day; globalx2 = bakgxvect; globaly2 = bakgyvect;
}
else
{
ox = wall[wall[startwall].point2].x - wall[startwall].x;
oy = wall[wall[startwall].point2].y - wall[startwall].y;
i = nsqrtasm(ox*ox+oy*oy); if (i == 0) continue;
i = 1048576/i;
globalx1 = mulscale10(dmulscale10(ox,bakgxvect,oy,bakgyvect),i);
globaly1 = mulscale10(dmulscale10(ox,bakgyvect,-oy,bakgxvect),i);
ox = (bakx1>>4)-(xdim<<7); oy = (baky1>>4)-(ydim<<7);
globalposx = dmulscale28(-oy,globalx1,-ox,globaly1);
globalposy = dmulscale28(-ox,globalx1,oy,globaly1);
globalx2 = -globalx1;
globaly2 = -globaly1;
daslope = sector[s].floorheinum;
i = nsqrtasm(daslope*daslope+16777216);
globalposy = mulscale12(globalposy,i);
globalx2 = mulscale12(globalx2,i);
globaly2 = mulscale12(globaly2,i);
}
globalxshift = (8-(picsiz[globalpicnum]&15));
globalyshift = (8-(picsiz[globalpicnum]>>4));
if (globalorientation&8) {globalxshift++; globalyshift++; }
sethlinesizes(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4,globalbufplc);
if ((globalorientation&0x4) > 0)
{
i = globalposx; globalposx = -globalposy; globalposy = -i;
i = globalx2; globalx2 = globaly1; globaly1 = i;
i = globalx1; globalx1 = -globaly2; globaly2 = -i;
}
if ((globalorientation&0x10) > 0) globalx1 = -globalx1, globaly1 = -globaly1, globalposx = -globalposx;
if ((globalorientation&0x20) > 0) globalx2 = -globalx2, globaly2 = -globaly2, globalposy = -globalposy;
asm1 = (globaly1<<globalxshift);
asm2 = (globalx2<<globalyshift);
globalx1 <<= globalxshift;
globaly2 <<= globalyshift;
globalposx = (globalposx<<(20+globalxshift))+(((int32_t)sec->floorxpanning)<<24);
globalposy = (globalposy<<(20+globalyshift))-(((int32_t)sec->floorypanning)<<24);
fillpolygon(npoints);
}
//Sort sprite list
gap = 1; while (gap < sortnum) gap = (gap<<1)+1;
for (gap>>=1; gap>0; gap>>=1)
for (i=0; i<sortnum-gap; i++)
for (j=i; j>=0; j-=gap)
{
if (sprite[tsprite[j].owner].z <= sprite[tsprite[j+gap].owner].z) break;
swapshort(&tsprite[j].owner,&tsprite[j+gap].owner);
}
for (s=sortnum-1; s>=0; s--)
{
spr = &sprite[tsprite[s].owner];
if ((spr->cstat&48) == 32)
{
npoints = 0;
tilenum = spr->picnum;
xoff = (int32_t)((int8_t)((picanm[tilenum]>>8)&255))+((int32_t)spr->xoffset);
yoff = (int32_t)((int8_t)((picanm[tilenum]>>16)&255))+((int32_t)spr->yoffset);
if ((spr->cstat&4) > 0) xoff = -xoff;
if ((spr->cstat&8) > 0) yoff = -yoff;
k = spr->ang&2047; // FIXME ? See DNE_BUG_HERE
cosang = sintable[(k+512)&2047]; sinang = sintable[k];
xspan = tilesizx[tilenum]; xrepeat = spr->xrepeat;
yspan = tilesizy[tilenum]; yrepeat = spr->yrepeat;
ox = ((xspan>>1)+xoff)*xrepeat; oy = ((yspan>>1)+yoff)*yrepeat;
x1 = spr->x + mulscale(sinang,ox,16) + mulscale(cosang,oy,16);
y1 = spr->y + mulscale(sinang,oy,16) - mulscale(cosang,ox,16);
l = xspan*xrepeat;
x2 = x1 - mulscale(sinang,l,16);
y2 = y1 + mulscale(cosang,l,16);
l = yspan*yrepeat;
k = -mulscale(cosang,l,16); x3 = x2+k; x4 = x1+k;
k = -mulscale(sinang,l,16); y3 = y2+k; y4 = y1+k;
xb1[0] = 1; xb1[1] = 2; xb1[2] = 3; xb1[3] = 0;
npoints = 4;
i = 0;
ox = x1 - dax; oy = y1 - day;
x = dmulscale16(ox,xvect,-oy,yvect) + (xdim<<11);
y = dmulscale16(oy,xvect2,ox,yvect2) + (ydim<<11);
i |= getclipmask(x-cx1,cx2-x,y-cy1,cy2-y);
rx1[0] = x; ry1[0] = y;
ox = x2 - dax; oy = y2 - day;
x = dmulscale16(ox,xvect,-oy,yvect) + (xdim<<11);
y = dmulscale16(oy,xvect2,ox,yvect2) + (ydim<<11);
i |= getclipmask(x-cx1,cx2-x,y-cy1,cy2-y);
rx1[1] = x; ry1[1] = y;
ox = x3 - dax; oy = y3 - day;
x = dmulscale16(ox,xvect,-oy,yvect) + (xdim<<11);
y = dmulscale16(oy,xvect2,ox,yvect2) + (ydim<<11);
i |= getclipmask(x-cx1,cx2-x,y-cy1,cy2-y);
rx1[2] = x; ry1[2] = y;
x = rx1[0]+rx1[2]-rx1[1];
y = ry1[0]+ry1[2]-ry1[1];
i |= getclipmask(x-cx1,cx2-x,y-cy1,cy2-y);
rx1[3] = x; ry1[3] = y;
if ((i&0xf0) != 0xf0) continue;
bakx1 = rx1[0]; baky1 = mulscale16(ry1[0]-(ydim<<11),xyaspect)+(ydim<<11);
if (i&0x0f)
{
npoints = clippoly(npoints,i);
if (npoints < 3) continue;
}
globalpicnum = spr->picnum;
globalpal = spr->pal; // GL needs this, software doesn't
if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0;
setgotpic(globalpicnum);
if ((tilesizx[globalpicnum] <= 0) || (tilesizy[globalpicnum] <= 0)) continue;
if ((picanm[globalpicnum]&192) != 0) globalpicnum += animateoffs((int16_t)globalpicnum,s);
if (waloff[globalpicnum] == 0) loadtile(globalpicnum);
globalbufplc = waloff[globalpicnum];
// 'loading' the tile doesn't actually guarantee that it's there afterwards.
// This can really happen when drawing the second frame of a floor-aligned
// 'storm icon' sprite (4894+1)
if (!globalbufplc)
continue;
if ((sector[spr->sectnum].ceilingstat&1) > 0)
globalshade = ((int32_t)sector[spr->sectnum].ceilingshade);
else
globalshade = ((int32_t)sector[spr->sectnum].floorshade);
globalshade = max(min(globalshade+spr->shade+6,numpalookups-1),0);
asm3 = FP_OFF(palookup[spr->pal]+(globalshade<<8));
globvis = globalhisibility;
if (sec->visibility != 0) globvis = mulscale4(globvis,(int32_t)((uint8_t)(sec->visibility+16)));
globalpolytype = ((spr->cstat&2)>>1)+1;
//relative alignment stuff
ox = x2-x1; oy = y2-y1;
i = ox*ox+oy*oy; if (i == 0) continue; i = (65536*16384)/i;
globalx1 = mulscale10(dmulscale10(ox,bakgxvect,oy,bakgyvect),i);
globaly1 = mulscale10(dmulscale10(ox,bakgyvect,-oy,bakgxvect),i);
ox = y1-y4; oy = x4-x1;
i = ox*ox+oy*oy; if (i == 0) continue; i = (65536*16384)/i;
globalx2 = mulscale10(dmulscale10(ox,bakgxvect,oy,bakgyvect),i);
globaly2 = mulscale10(dmulscale10(ox,bakgyvect,-oy,bakgxvect),i);
ox = picsiz[globalpicnum]; oy = ((ox>>4)&15); ox &= 15;
if (pow2long[ox] != xspan)
{
ox++;
globalx1 = mulscale(globalx1,xspan,ox);
globaly1 = mulscale(globaly1,xspan,ox);
}
bakx1 = (bakx1>>4)-(xdim<<7); baky1 = (baky1>>4)-(ydim<<7);
globalposx = dmulscale28(-baky1,globalx1,-bakx1,globaly1);
globalposy = dmulscale28(bakx1,globalx2,-baky1,globaly2);
if ((spr->cstat&2) == 0)
msethlineshift(ox,oy);
else
{
if (spr->cstat&512) settransreverse(); else settransnormal();
tsethlineshift(ox,oy);
}
if ((spr->cstat&0x4) > 0) globalx1 = -globalx1, globaly1 = -globaly1, globalposx = -globalposx;
asm1 = (globaly1<<2); globalx1 <<= 2; globalposx <<= (20+2);
asm2 = (globalx2<<2); globaly2 <<= 2; globalposy <<= (20+2);
globalorientation = ((spr->cstat&2)<<7) | ((spr->cstat&512)>>2); // so polymost can get the translucency. ignored in software mode.
fillpolygon(npoints);
}
}
enddrawing(); //}}}
if (r_usenewaspect)
setaspect(oviewingrange, oyxaspect);
else
setaspect(65536L,(int32_t)divscale16(ydim*320L,xdim*200L));
}
//
// loadboard
//
// flags: 1, 2: former parameter "fromwhere"
// 4: don't call polymer_loadboard
int32_t loadboard(char *filename, char flags, int32_t *daposx, int32_t *daposy, int32_t *daposz,
int16_t *daang, int16_t *dacursectnum)
{
int16_t fil, i, numsprites; /*dq[MAXSPRITES], dnum = 0;*/
#ifdef POLYMER
char myflags = flags&(~3);
#endif
flags &= 3;
i = Bstrlen(filename)-1;
if (filename[i] == 255) { filename[i] = 0; flags = 1; } // JBF 20040119: "compatibility"
if ((fil = kopen4load(filename,flags)) == -1)
{ mapversion = 7; return(-1); }
kread(fil,&mapversion,4); mapversion = B_LITTLE32(mapversion);
#ifdef YAX_ENABLE
if (mapversion != 9)
#endif
if (mapversion != 7 && mapversion != 8) { kclose(fil); return(-2); }
/*
// Enable this for doing map checksum tests
clearbufbyte(&wall, sizeof(wall), 0);
clearbufbyte(&sector, sizeof(sector), 0);
clearbufbyte(&sprite, sizeof(sprite), 0);
*/
#ifdef NEDMALLOC
nedtrimthreadcache(0, 0);
#endif
initspritelists();
#define MYMAXSECTORS (mapversion==7?MAXSECTORSV7:MAXSECTORSV8)
#define MYMAXWALLS (mapversion==7?MAXWALLSV7:MAXWALLSV8)
#define MYMAXSPRITES (mapversion==7?MAXSPRITESV7:MAXSPRITESV8)
Bmemset(show2dsector, 0, sizeof(show2dsector));
Bmemset(show2dsprite, 0, sizeof(show2dsprite));
Bmemset(show2dwall, 0, sizeof(show2dwall));
kread(fil,daposx,4); *daposx = B_LITTLE32(*daposx);
kread(fil,daposy,4); *daposy = B_LITTLE32(*daposy);
kread(fil,daposz,4); *daposz = B_LITTLE32(*daposz);
kread(fil,daang,2); *daang = B_LITTLE16(*daang);
kread(fil,dacursectnum,2); *dacursectnum = B_LITTLE16(*dacursectnum);
kread(fil,&numsectors,2); numsectors = B_LITTLE16(numsectors);
if (numsectors > MYMAXSECTORS) { kclose(fil); return(-1); }
kread(fil,&sector[0],sizeof(sectortype)*numsectors);
for (i=numsectors-1; i>=0; i--)
{
sector[i].wallptr = B_LITTLE16(sector[i].wallptr);
sector[i].wallnum = B_LITTLE16(sector[i].wallnum);
sector[i].ceilingz = B_LITTLE32(sector[i].ceilingz);
sector[i].floorz = B_LITTLE32(sector[i].floorz);
sector[i].ceilingstat = B_LITTLE16(sector[i].ceilingstat);
sector[i].floorstat = B_LITTLE16(sector[i].floorstat);
sector[i].ceilingpicnum = B_LITTLE16(sector[i].ceilingpicnum);
sector[i].ceilingheinum = B_LITTLE16(sector[i].ceilingheinum);
sector[i].floorpicnum = B_LITTLE16(sector[i].floorpicnum);
sector[i].floorheinum = B_LITTLE16(sector[i].floorheinum);
sector[i].lotag = B_LITTLE16(sector[i].lotag);
sector[i].hitag = B_LITTLE16(sector[i].hitag);
sector[i].extra = B_LITTLE16(sector[i].extra);
}
kread(fil,&numwalls,2); numwalls = B_LITTLE16(numwalls);
if (numwalls > MYMAXWALLS) { kclose(fil); return(-1); }
kread(fil,&wall[0],sizeof(walltype)*numwalls);
for (i=numwalls-1; i>=0; i--)
{
wall[i].x = B_LITTLE32(wall[i].x);
wall[i].y = B_LITTLE32(wall[i].y);
wall[i].point2 = B_LITTLE16(wall[i].point2);
wall[i].nextwall = B_LITTLE16(wall[i].nextwall);
wall[i].nextsector = B_LITTLE16(wall[i].nextsector);
wall[i].cstat = B_LITTLE16(wall[i].cstat);
wall[i].picnum = B_LITTLE16(wall[i].picnum);
wall[i].overpicnum = B_LITTLE16(wall[i].overpicnum);
wall[i].lotag = B_LITTLE16(wall[i].lotag);
wall[i].hitag = B_LITTLE16(wall[i].hitag);
wall[i].extra = B_LITTLE16(wall[i].extra);
}
kread(fil,&numsprites,2); numsprites = B_LITTLE16(numsprites);
if (numsprites > MYMAXSPRITES) { kclose(fil); return(-1); }
kread(fil,&sprite[0],sizeof(spritetype)*numsprites);
for (i=numsprites-1; i>=0; i--)
{
sprite[i].x = B_LITTLE32(sprite[i].x);
sprite[i].y = B_LITTLE32(sprite[i].y);
sprite[i].z = B_LITTLE32(sprite[i].z);
sprite[i].cstat = B_LITTLE16(sprite[i].cstat);
sprite[i].picnum = B_LITTLE16(sprite[i].picnum);
sprite[i].sectnum = B_LITTLE16(sprite[i].sectnum);
sprite[i].statnum = B_LITTLE16(sprite[i].statnum);
sprite[i].ang = B_LITTLE16(sprite[i].ang);
sprite[i].owner = B_LITTLE16(sprite[i].owner);
sprite[i].xvel = B_LITTLE16(sprite[i].xvel);
sprite[i].yvel = B_LITTLE16(sprite[i].yvel);
sprite[i].zvel = B_LITTLE16(sprite[i].zvel);
sprite[i].lotag = B_LITTLE16(sprite[i].lotag);
sprite[i].hitag = B_LITTLE16(sprite[i].hitag);
sprite[i].extra = B_LITTLE16(sprite[i].extra);
if (sprite[i].sectnum<0||sprite[i].sectnum>=MYMAXSECTORS)
{
initprintf(OSD_ERROR "Map error: sprite #%d(%d,%d) with illegal sector(%d). Map is corrupt!\n",i,sprite[i].x,sprite[i].y,sprite[i].sectnum);
updatesector(sprite[i].x, sprite[i].y, &sprite[i].sectnum);
}
if (sprite[i].picnum<0||sprite[i].picnum>=MAXTILES)
{
initprintf(OSD_ERROR "Map error: sprite #%d(%d,%d) with illegal picnum(%d). Map is corrupt!\n",i,sprite[i].x,sprite[i].y,sprite[i].picnum);
// dq[dnum++] = i;
sprite[i].picnum = 0;
}
}
#ifdef YAX_ENABLE
yax_update(mapversion<9);
if (editstatus)
yax_updategrays(*daposz);
#endif
for (i=0; i<numsprites; i++)
{
/*
int32_t k;
int16_t sect;
*/
if ((sprite[i].cstat & 48) == 48) sprite[i].cstat &= ~48;
/*k =*/ insertsprite(sprite[i].sectnum,sprite[i].statnum);
/*
sect = sprite[k].sectnum;
updatesector(sprite[k].x, sprite[k].y, &sect);
if (sect == -1)
{
int32_t ii, jj;
for (ii=32; ii >= 0; ii--)
{
for (jj=32; jj >= 0; jj--)
{
updatesector(sprite[k].x+ii-16, sprite[k].y+jj-16, &sect);
if (sect != -1) break;
}
if (sect != -1) break;
}
/ * fuck it, the sprite is clearly not legitimately in any sector at this point
so let's queue it up for deletion * /
if (sect == -1)
dq[dnum++] = k;
}
*/
}
/*
while (dnum--)
{
initprintf(OSD_ERROR "Map error: removing sprite #%d(%d,%d) in null space. Map is corrupt!\n",dq[dnum],sprite[dq[dnum]].x,sprite[dq[dnum]].y);
deletesprite(dq[dnum]);
}
*/
//Must be after loading sectors, etc!
updatesector(*daposx,*daposy,dacursectnum);
kclose(fil);
#ifdef HAVE_CLIPSHAPE_FEATURE
if (!quickloadboard)
#endif
{
Bmemset(spriteext, 0, sizeof(spriteext_t) * MAXSPRITES);
#ifdef USE_OPENGL
Bmemset(spritesmooth, 0, sizeof(spritesmooth_t) * (MAXSPRITES+MAXUNIQHUDID));
// polymost_cachesync();
# ifdef POLYMER
if (rendmode == 4)
{
if ((myflags&4)==0)
polymer_loadboard();
}
#endif
#endif
}
guniqhudid = 0;
startposx = *daposx;
startposy = *daposy;
startposz = *daposz;
startang = *daang;
startsectnum = *dacursectnum;
return(0);
}
//
// loadboardv5/6
//
#pragma pack(push,1)
struct sectortypev5
{
uint16_t wallptr, wallnum;
int16_t ceilingpicnum, floorpicnum;
int16_t ceilingheinum, floorheinum;
int32_t ceilingz, floorz;
int8_t ceilingshade, floorshade;
char ceilingxpanning, floorxpanning;
char ceilingypanning, floorypanning;
char ceilingstat, floorstat;
char ceilingpal, floorpal;
char visibility;
int16_t lotag, hitag;
int16_t extra;
};
struct walltypev5
{
int32_t x, y;
int16_t point2;
int16_t picnum, overpicnum;
int8_t shade;
int16_t cstat;
char xrepeat, yrepeat, xpanning, ypanning;
int16_t nextsector1, nextwall1;
int16_t nextsector2, nextwall2;
int16_t lotag, hitag;
int16_t extra;
};
struct spritetypev5
{
int32_t x, y, z;
char cstat;
int8_t shade;
char xrepeat, yrepeat;
int16_t picnum, ang, xvel, yvel, zvel, owner;
int16_t sectnum, statnum;
int16_t lotag, hitag;
int16_t extra;
};
struct sectortypev6
{
uint16_t wallptr, wallnum;
int16_t ceilingpicnum, floorpicnum;
int16_t ceilingheinum, floorheinum;
int32_t ceilingz, floorz;
int8_t ceilingshade, floorshade;
char ceilingxpanning, floorxpanning;
char ceilingypanning, floorypanning;
char ceilingstat, floorstat;
char ceilingpal, floorpal;
char visibility;
int16_t lotag, hitag, extra;
};
struct walltypev6
{
int32_t x, y;
int16_t point2, nextsector, nextwall;
int16_t picnum, overpicnum;
int8_t shade;
char pal;
int16_t cstat;
char xrepeat, yrepeat, xpanning, ypanning;
int16_t lotag, hitag, extra;
};
struct spritetypev6
{
int32_t x, y, z;
int16_t cstat;
int8_t shade;
char pal, clipdist;
char xrepeat, yrepeat;
int8_t xoffset, yoffset;
int16_t picnum, ang, xvel, yvel, zvel, owner;
int16_t sectnum, statnum;
int16_t lotag, hitag, extra;
};
#pragma pack(pop)
static int16_t sectorofwallv5(int16_t theline)
{
int16_t i, startwall, endwall, sucksect;
sucksect = -1;
for (i=0; i<numsectors; i++)
{
startwall = sector[i].wallptr;
endwall = startwall + sector[i].wallnum - 1;
if ((theline >= startwall) && (theline <= endwall))
{
sucksect = i;
break;
}
}
return(sucksect);
}
static void convertv5sectv6(struct sectortypev5 *from, struct sectortypev6 *to)
{
to->wallptr = from->wallptr;
to->wallnum = from->wallnum;
to->ceilingpicnum = from->ceilingpicnum;
to->floorpicnum = from->floorpicnum;
to->ceilingheinum = from->ceilingheinum;
to->floorheinum = from->floorheinum;
to->ceilingz = from->ceilingz;
to->floorz = from->floorz;
to->ceilingshade = from->ceilingshade;
to->floorshade = from->floorshade;
to->ceilingxpanning = from->ceilingxpanning;
to->floorxpanning = from->floorxpanning;
to->ceilingypanning = from->ceilingypanning;
to->floorypanning = from->floorypanning;
to->ceilingstat = from->ceilingstat;
to->floorstat = from->floorstat;
to->ceilingpal = from->ceilingpal;
to->floorpal = from->floorpal;
to->visibility = from->visibility;
to->lotag = from->lotag;
to->hitag = from->hitag;
to->extra = from->extra;
}
static void convertv5wallv6(struct walltypev5 *from, struct walltypev6 *to, int32_t i)
{
to->x = from->x;
to->y = from->y;
to->point2 = from->point2;
to->nextsector = from->nextsector1;
to->nextwall = from->nextwall1;
to->picnum = from->picnum;
to->overpicnum = from->overpicnum;
to->shade = from->shade;
to->pal = sector[sectorofwallv5((int16_t)i)].floorpal;
to->cstat = from->cstat;
to->xrepeat = from->xrepeat;
to->yrepeat = from->yrepeat;
to->xpanning = from->xpanning;
to->ypanning = from->ypanning;
to->lotag = from->lotag;
to->hitag = from->hitag;
to->extra = from->extra;
}
static void convertv5sprv6(struct spritetypev5 *from, struct spritetypev6 *to)
{
int16_t j;
to->x = from->x;
to->y = from->y;
to->z = from->z;
to->cstat = from->cstat;
to->shade = from->shade;
j = from->sectnum;
if ((sector[j].ceilingstat&1) > 0)
to->pal = sector[j].ceilingpal;
else
to->pal = sector[j].floorpal;
to->clipdist = 32;
to->xrepeat = from->xrepeat;
to->yrepeat = from->yrepeat;
to->xoffset = 0;
to->yoffset = 0;
to->picnum = from->picnum;
to->ang = from->ang;
to->xvel = from->xvel;
to->yvel = from->yvel;
to->zvel = from->zvel;
to->owner = from->owner;
to->sectnum = from->sectnum;
to->statnum = from->statnum;
to->lotag = from->lotag;
to->hitag = from->hitag;
to->extra = from->extra;
}
static void convertv6sectv7(struct sectortypev6 *from, sectortype *to)
{
to->ceilingz = from->ceilingz;
to->floorz = from->floorz;
to->wallptr = from->wallptr;
to->wallnum = from->wallnum;
to->ceilingpicnum = from->ceilingpicnum;
to->ceilingheinum = max(min(((int32_t)from->ceilingheinum)<<5,32767),-32768);
if ((from->ceilingstat&2) == 0) to->ceilingheinum = 0;
to->ceilingshade = from->ceilingshade;
to->ceilingpal = from->ceilingpal;
to->ceilingxpanning = from->ceilingxpanning;
to->ceilingypanning = from->ceilingypanning;
to->floorpicnum = from->floorpicnum;
to->floorheinum = max(min(((int32_t)from->floorheinum)<<5,32767),-32768);
if ((from->floorstat&2) == 0) to->floorheinum = 0;
to->floorshade = from->floorshade;
to->floorpal = from->floorpal;
to->floorxpanning = from->floorxpanning;
to->floorypanning = from->floorypanning;
to->ceilingstat = from->ceilingstat;
to->floorstat = from->floorstat;
to->visibility = from->visibility;
to->filler = 0;
to->lotag = from->lotag;
to->hitag = from->hitag;
to->extra = from->extra;
}
static void convertv6wallv7(struct walltypev6 *from, walltype *to)
{
to->x = from->x;
to->y = from->y;
to->point2 = from->point2;
to->nextwall = from->nextwall;
to->nextsector = from->nextsector;
to->cstat = from->cstat;
to->picnum = from->picnum;
to->overpicnum = from->overpicnum;
to->shade = from->shade;
to->pal = from->pal;
to->xrepeat = from->xrepeat;
to->yrepeat = from->yrepeat;
to->xpanning = from->xpanning;
to->ypanning = from->ypanning;
to->lotag = from->lotag;
to->hitag = from->hitag;
to->extra = from->extra;
}
static void convertv6sprv7(struct spritetypev6 *from, spritetype *to)
{
to->x = from->x;
to->y = from->y;
to->z = from->z;
to->cstat = from->cstat;
to->picnum = from->picnum;
to->shade = from->shade;
to->pal = from->pal;
to->clipdist = from->clipdist;
to->filler = 0;
to->xrepeat = from->xrepeat;
to->yrepeat = from->yrepeat;
to->xoffset = from->xoffset;
to->yoffset = from->yoffset;
to->sectnum = from->sectnum;
to->statnum = from->statnum;
to->ang = from->ang;
to->owner = from->owner;
to->xvel = from->xvel;
to->yvel = from->yvel;
to->zvel = from->zvel;
to->lotag = from->lotag;
to->hitag = from->hitag;
to->extra = from->extra;
}
// Powerslave uses v6
// Witchaven 1 and TekWar and LameDuke use v5
int32_t loadoldboard(char *filename, char fromwhere, int32_t *daposx, int32_t *daposy, int32_t *daposz,
int16_t *daang, int16_t *dacursectnum)
{
int16_t fil, i, numsprites;
struct sectortypev5 v5sect;
struct walltypev5 v5wall;
struct spritetypev5 v5spr;
struct sectortypev6 v6sect;
struct walltypev6 v6wall;
struct spritetypev6 v6spr;
i = Bstrlen(filename)-1;
if (filename[i] == 255) { filename[i] = 0; fromwhere = 1; } // JBF 20040119: "compatibility"
if ((fil = kopen4load(filename,fromwhere)) == -1)
{ mapversion = 5L; return(-1); }
kread(fil,&mapversion,4); mapversion = B_LITTLE32(mapversion);
if (mapversion != 5L && mapversion != 6L) { kclose(fil); return(-2); }
initspritelists();
clearbuf(&show2dsector[0],(int32_t)((MAXSECTORS+3)>>5),0L);
clearbuf(&show2dsprite[0],(int32_t)((MAXSPRITES+3)>>5),0L);
clearbuf(&show2dwall[0],(int32_t)((MAXWALLS+3)>>5),0L);
kread(fil,daposx,4); *daposx = B_LITTLE32(*daposx);
kread(fil,daposy,4); *daposy = B_LITTLE32(*daposy);
kread(fil,daposz,4); *daposz = B_LITTLE32(*daposz);
kread(fil,daang,2); *daang = B_LITTLE16(*daang);
kread(fil,dacursectnum,2); *dacursectnum = B_LITTLE16(*dacursectnum);
kread(fil,&numsectors,2); numsectors = B_LITTLE16(numsectors);
if (numsectors > MAXSECTORS) { kclose(fil); return(-1); }
for (i=0; i<numsectors; i++)
{
switch (mapversion)
{
case 5:
kread(fil,&v5sect,sizeof(struct sectortypev5));
v5sect.wallptr = B_LITTLE16(v5sect.wallptr);
v5sect.wallnum = B_LITTLE16(v5sect.wallnum);
v5sect.ceilingpicnum = B_LITTLE16(v5sect.ceilingpicnum);
v5sect.floorpicnum = B_LITTLE16(v5sect.floorpicnum);
v5sect.ceilingheinum = B_LITTLE16(v5sect.ceilingheinum);
v5sect.floorheinum = B_LITTLE16(v5sect.floorheinum);
v5sect.ceilingz = B_LITTLE32(v5sect.ceilingz);
v5sect.floorz = B_LITTLE32(v5sect.floorz);
v5sect.lotag = B_LITTLE16(v5sect.lotag);
v5sect.hitag = B_LITTLE16(v5sect.hitag);
v5sect.extra = B_LITTLE16(v5sect.extra);
break;
case 6:
kread(fil,&v6sect,sizeof(struct sectortypev6));
v6sect.wallptr = B_LITTLE16(v6sect.wallptr);
v6sect.wallnum = B_LITTLE16(v6sect.wallnum);
v6sect.ceilingpicnum = B_LITTLE16(v6sect.ceilingpicnum);
v6sect.floorpicnum = B_LITTLE16(v6sect.floorpicnum);
v6sect.ceilingheinum = B_LITTLE16(v6sect.ceilingheinum);
v6sect.floorheinum = B_LITTLE16(v6sect.floorheinum);
v6sect.ceilingz = B_LITTLE32(v6sect.ceilingz);
v6sect.floorz = B_LITTLE32(v6sect.floorz);
v6sect.lotag = B_LITTLE16(v6sect.lotag);
v6sect.hitag = B_LITTLE16(v6sect.hitag);
v6sect.extra = B_LITTLE16(v6sect.extra);
break;
}
switch (mapversion)
{
case 5:
convertv5sectv6(&v5sect,&v6sect);
case 6:
convertv6sectv7(&v6sect,&sector[i]);
}
}
kread(fil,&numwalls,2); numwalls = B_LITTLE16(numwalls);
if (numwalls > MAXWALLS) { kclose(fil); return(-1); }
for (i=0; i<numwalls; i++)
{
switch (mapversion)
{
case 5:
kread(fil,&v5wall,sizeof(struct walltypev5));
v5wall.x = B_LITTLE32(v5wall.x);
v5wall.y = B_LITTLE32(v5wall.y);
v5wall.point2 = B_LITTLE16(v5wall.point2);
v5wall.picnum = B_LITTLE16(v5wall.picnum);
v5wall.overpicnum = B_LITTLE16(v5wall.overpicnum);
v5wall.cstat = B_LITTLE16(v5wall.cstat);
v5wall.nextsector1 = B_LITTLE16(v5wall.nextsector1);
v5wall.nextwall1 = B_LITTLE16(v5wall.nextwall1);
v5wall.nextsector2 = B_LITTLE16(v5wall.nextsector2);
v5wall.nextwall2 = B_LITTLE16(v5wall.nextwall2);
v5wall.lotag = B_LITTLE16(v5wall.lotag);
v5wall.hitag = B_LITTLE16(v5wall.hitag);
v5wall.extra = B_LITTLE16(v5wall.extra);
break;
case 6:
kread(fil,&v6wall,sizeof(struct walltypev6));
v6wall.x = B_LITTLE32(v6wall.x);
v6wall.y = B_LITTLE32(v6wall.y);
v6wall.point2 = B_LITTLE16(v6wall.point2);
v6wall.nextsector = B_LITTLE16(v6wall.nextsector);
v6wall.nextwall = B_LITTLE16(v6wall.nextwall);
v6wall.picnum = B_LITTLE16(v6wall.picnum);
v6wall.overpicnum = B_LITTLE16(v6wall.overpicnum);
v6wall.cstat = B_LITTLE16(v6wall.cstat);
v6wall.lotag = B_LITTLE16(v6wall.lotag);
v6wall.hitag = B_LITTLE16(v6wall.hitag);
v6wall.extra = B_LITTLE16(v6wall.extra);
break;
}
switch (mapversion)
{
case 5:
convertv5wallv6(&v5wall,&v6wall,i);
case 6:
convertv6wallv7(&v6wall,&wall[i]);
}
}
kread(fil,&numsprites,2); numsprites = B_LITTLE16(numsprites);
if (numsprites > MAXSPRITES) { kclose(fil); return(-1); }
for (i=0; i<numsprites; i++)
{
switch (mapversion)
{
case 5:
kread(fil,&v5spr,sizeof(struct spritetypev5));
v5spr.x = B_LITTLE32(v5spr.x);
v5spr.y = B_LITTLE32(v5spr.y);
v5spr.z = B_LITTLE32(v5spr.z);
v5spr.picnum = B_LITTLE16(v5spr.picnum);
v5spr.ang = B_LITTLE16(v5spr.ang);
v5spr.xvel = B_LITTLE16(v5spr.xvel);
v5spr.yvel = B_LITTLE16(v5spr.yvel);
v5spr.zvel = B_LITTLE16(v5spr.zvel);
v5spr.owner = B_LITTLE16(v5spr.owner);
v5spr.sectnum = B_LITTLE16(v5spr.sectnum);
v5spr.statnum = B_LITTLE16(v5spr.statnum);
v5spr.lotag = B_LITTLE16(v5spr.lotag);
v5spr.hitag = B_LITTLE16(v5spr.hitag);
v5spr.extra = B_LITTLE16(v5spr.extra);
break;
case 6:
kread(fil,&v6spr,sizeof(struct spritetypev6));
v6spr.x = B_LITTLE32(v6spr.x);
v6spr.y = B_LITTLE32(v6spr.y);
v6spr.z = B_LITTLE32(v6spr.z);
v6spr.cstat = B_LITTLE16(v6spr.cstat);
v6spr.picnum = B_LITTLE16(v6spr.picnum);
v6spr.ang = B_LITTLE16(v6spr.ang);
v6spr.xvel = B_LITTLE16(v6spr.xvel);
v6spr.yvel = B_LITTLE16(v6spr.yvel);
v6spr.zvel = B_LITTLE16(v6spr.zvel);
v6spr.owner = B_LITTLE16(v6spr.owner);
v6spr.sectnum = B_LITTLE16(v6spr.sectnum);
v6spr.statnum = B_LITTLE16(v6spr.statnum);
v6spr.lotag = B_LITTLE16(v6spr.lotag);
v6spr.hitag = B_LITTLE16(v6spr.hitag);
v6spr.extra = B_LITTLE16(v6spr.extra);
break;
}
switch (mapversion)
{
case 5:
convertv5sprv6(&v5spr,&v6spr);
case 6:
convertv6sprv7(&v6spr,&sprite[i]);
}
}
for (i=0; i<numsprites; i++)
{
if ((sprite[i].cstat & 48) == 48) sprite[i].cstat &= ~48;
insertsprite(sprite[i].sectnum,sprite[i].statnum);
}
//Must be after loading sectors, etc!
updatesector(*daposx,*daposy,dacursectnum);
kclose(fil);
#ifdef USE_OPENGL
Bmemset(spriteext, 0, sizeof(spriteext_t) * MAXSPRITES);
Bmemset(spritesmooth, 0, sizeof(spritesmooth_t) * (MAXSPRITES+MAXUNIQHUDID));
#endif
guniqhudid = 0;
return(0);
}
#ifdef POLYMER
void delete_maphack_lights()
{
int32_t i;
for (i=0; i<maphacklightcnt; i++)
{
if (maphacklight[i] >= 0)
polymer_deletelight(maphacklight[i]);
maphacklight[i] = -1;
}
maphacklightcnt = 0;
}
#else
void delete_maphack_lights() {}
#endif
//
// loadmaphack
//
int32_t loadmaphack(const char *filename)
{
#ifdef USE_OPENGL
enum
{
T_EOF = -2,
T_ERROR = -1,
T_SPRITE = 0,
T_ANGOFF,
T_NOMODEL,
T_NOANIM,
T_PITCH,
T_ROLL,
T_MDXOFF,
T_MDYOFF,
T_MDZOFF,
T_AWAY1,
T_AWAY2,
T_LIGHT,
};
static struct { const char *text; int32_t tokenid; } legaltokens[] =
{
{ "sprite", T_SPRITE },
{ "angleoff", T_ANGOFF },
{ "angoff", T_ANGOFF },
{ "notmd2", T_NOMODEL },
{ "notmd3", T_NOMODEL },
{ "notmd", T_NOMODEL },
{ "nomd2anim", T_NOANIM },
{ "nomd3anim", T_NOANIM },
{ "nomdanim", T_NOANIM },
{ "pitch", T_PITCH },
{ "roll", T_ROLL },
{ "mdxoff", T_MDXOFF },
{ "mdyoff", T_MDYOFF },
{ "mdzoff", T_MDZOFF },
{ "away1", T_AWAY1 },
{ "away2", T_AWAY2 },
{ "light", T_LIGHT },
{ NULL, -1 }
};
scriptfile *script = NULL;
char *tok, *cmdtokptr;
int32_t i;
int32_t whichsprite = -1;
static char fn[BMAX_PATH];
#ifdef POLYMER
int32_t toomanylights = 0;
delete_maphack_lights();
#endif
if (filename)
{
Bmemset(spriteext, 0, sizeof(spriteext_t) * MAXSPRITES);
Bmemset(spritesmooth, 0, sizeof(spritesmooth_t) *(MAXSPRITES+MAXUNIQHUDID));
Bstrcpy(fn, filename);
script = scriptfile_fromfile(filename);
}
else if (fn[0])
{
// re-load
script = scriptfile_fromfile(fn);
}
if (!script)
{
fn[0] = 0;
return -1;
}
while (1)
{
tok = scriptfile_gettoken(script);
if (!tok) break;
for (i=0; legaltokens[i].text; i++) if (!Bstrcasecmp(tok,legaltokens[i].text)) break;
cmdtokptr = script->ltextptr;
if (!filename && legaltokens[i].tokenid != T_LIGHT) continue;
switch (legaltokens[i].tokenid)
{
case T_SPRITE: // sprite <xx>
if (scriptfile_getnumber(script, &whichsprite)) break;
if ((unsigned)whichsprite >= (unsigned)MAXSPRITES)
{
// sprite number out of range
initprintf("Sprite number out of range 0-%d on line %s:%d\n",
MAXSPRITES-1,script->filename, scriptfile_getlinum(script,cmdtokptr));
whichsprite = -1;
break;
}
break;
case T_ANGOFF: // angoff <xx>
{
int32_t ang;
if (scriptfile_getnumber(script, &ang)) break;
if (whichsprite < 0)
{
// no sprite directive preceeding
initprintf("Ignoring angle offset directive because of absent/invalid sprite number on line %s:%d\n",
script->filename, scriptfile_getlinum(script,cmdtokptr));
break;
}
spriteext[whichsprite].angoff = (int16_t)ang;
}
break;
case T_NOMODEL: // notmd
if (whichsprite < 0)
{
// no sprite directive preceeding
initprintf("Ignoring not-MD2/MD3 directive because of absent/invalid sprite number on line %s:%d\n",
script->filename, scriptfile_getlinum(script,cmdtokptr));
break;
}
spriteext[whichsprite].flags |= SPREXT_NOTMD;
break;
case T_NOANIM: // nomdanim
if (whichsprite < 0)
{
// no sprite directive preceeding
initprintf("Ignoring no-MD2/MD3-anim directive because of absent/invalid sprite number on line %s:%d\n",
script->filename, scriptfile_getlinum(script,cmdtokptr));
break;
}
spriteext[whichsprite].flags |= SPREXT_NOMDANIM;
break;
case T_PITCH: // pitch <xx>
{
int32_t pitch;
if (scriptfile_getnumber(script, &pitch)) break;
if (whichsprite < 0)
{
// no sprite directive preceeding
initprintf("Ignoring pitch directive because of absent/invalid sprite number on line %s:%d\n",
script->filename, scriptfile_getlinum(script,cmdtokptr));
break;
}
spriteext[whichsprite].pitch = (int16_t)pitch;
}
break;
case T_ROLL: // roll <xx>
{
int32_t roll;
if (scriptfile_getnumber(script, &roll)) break;
if (whichsprite < 0)
{
// no sprite directive preceeding
initprintf("Ignoring roll directive because of absent/invalid sprite number on line %s:%d\n",
script->filename, scriptfile_getlinum(script,cmdtokptr));
break;
}
spriteext[whichsprite].roll = (int16_t)roll;
}
break;
case T_MDXOFF: // mdxoff <xx>
{
int32_t i;
if (scriptfile_getnumber(script, &i)) break;
if (whichsprite < 0)
{
// no sprite directive preceeding
initprintf("Ignoring mdxoff directive because of absent/invalid sprite number on line %s:%d\n",
script->filename, scriptfile_getlinum(script,cmdtokptr));
break;
}
spriteext[whichsprite].xoff = i;
}
break;
case T_MDYOFF: // mdyoff <xx>
{
int32_t i;
if (scriptfile_getnumber(script, &i)) break;
if (whichsprite < 0)
{
// no sprite directive preceeding
initprintf("Ignoring mdyoff directive because of absent/invalid sprite number on line %s:%d\n",
script->filename, scriptfile_getlinum(script,cmdtokptr));
break;
}
spriteext[whichsprite].yoff = i;
}
break;
case T_MDZOFF: // mdzoff <xx>
{
int32_t i;
if (scriptfile_getnumber(script, &i)) break;
if (whichsprite < 0)
{
// no sprite directive preceeding
initprintf("Ignoring mdzoff directive because of absent/invalid sprite number on line %s:%d\n",
script->filename, scriptfile_getlinum(script,cmdtokptr));
break;
}
spriteext[whichsprite].zoff = i;
}
break;
case T_AWAY1: // away1
if (whichsprite < 0)
{
// no sprite directive preceeding
initprintf("Ignoring moving away directive because of absent/invalid sprite number on line %s:%d\n",
script->filename, scriptfile_getlinum(script,cmdtokptr));
break;
}
spriteext[whichsprite].flags |= SPREXT_AWAY1;
break;
case T_AWAY2: // away2
if (whichsprite < 0)
{
// no sprite directive preceeding
initprintf("Ignoring moving away directive because of absent/invalid sprite number on line %s:%d\n",
script->filename, scriptfile_getlinum(script,cmdtokptr));
break;
}
spriteext[whichsprite].flags |= SPREXT_AWAY2;
break;
#ifdef POLYMER
case T_LIGHT: // light sector x y z range r g b radius faderadius angle horiz minshade maxshade priority tilenum
{
int32_t value;
int16_t lightid;
#pragma pack(push,1)
_prlight light;
#pragma pack(pop)
if (toomanylights)
break; // ignore further light defs
scriptfile_getnumber(script, &value);
light.sector = value;
scriptfile_getnumber(script, &value);
light.x = value;
scriptfile_getnumber(script, &value);
light.y = value;
scriptfile_getnumber(script, &value);
light.z = value;
scriptfile_getnumber(script, &value);
light.range = value;
scriptfile_getnumber(script, &value);
light.color[0] = value;
scriptfile_getnumber(script, &value);
light.color[1] = value;
scriptfile_getnumber(script, &value);
light.color[2] = value;
scriptfile_getnumber(script, &value);
light.radius = value;
scriptfile_getnumber(script, &value);
light.faderadius = value;
scriptfile_getnumber(script, &value);
light.angle = value;
scriptfile_getnumber(script, &value);
light.horiz = value;
scriptfile_getnumber(script, &value);
light.minshade = value;
scriptfile_getnumber(script, &value);
light.maxshade = value;
scriptfile_getnumber(script, &value);
light.priority = value;
scriptfile_getnumber(script, &value);
light.tilenum = value;
if (rendmode == 4)
{
if (maphacklightcnt == PR_MAXLIGHTS)
{
initprintf("warning: max light count %d exceeded, "
"ignoring further light defs\n", PR_MAXLIGHTS);
toomanylights = 1;
break;
}
lightid = polymer_addlight(&light);
if (lightid>=0)
maphacklight[maphacklightcnt++] = lightid;
}
break;
}
#endif // POLYMER
default:
// unrecognised token
break;
}
}
scriptfile_close(script);
return 0;
#else
UNREFERENCED_PARAMETER(filename);
return -1;
#endif
}
//
// saveboard
//
int32_t saveboard(const char *filename, int32_t *daposx, int32_t *daposy, int32_t *daposz,
int16_t *daang, int16_t *dacursectnum)
{
int16_t fil, i, j, numsprites, ts;
int32_t tl;
sectortype *tsect = NULL;
walltype *twall = NULL;
spritetype *tspri = NULL;
sectortype *sec;
walltype *wal;
spritetype *spri;
if ((fil = Bopen(filename,BO_BINARY|BO_TRUNC|BO_CREAT|BO_WRONLY,BS_IREAD|BS_IWRITE)) == -1)
{
initprintf("Couldn't open \"%s\" for writing: %s\n", filename, strerror(errno));
return(-1);
}
for (j=0; j<MAXSPRITES; j++)
if ((unsigned)sprite[j].statnum>MAXSTATUS)
{
initprintf("Map error: sprite #%d(%d,%d) with an illegal statnum(%d)\n",j,sprite[j].x,sprite[j].y,sprite[j].statnum);
changespritestat(j,0);
}
numsprites = 0;
#if 0
for (j=0; j<MAXSTATUS; j++)
{
i = headspritestat[j];
while (i != -1)
{
numsprites++;
i = nextspritestat[i];
}
}
#else
for (j=0; j<MAXSPRITES; j++)
{
if (sprite[j].statnum != MAXSTATUS)
numsprites++;
}
#endif
#ifdef YAX_ENABLE
if (numyaxbunches > 0)
mapversion = 9;
else
#endif
if (numsectors > MAXSECTORSV7 || numwalls > MAXWALLSV7 || numsprites > MAXSPRITESV7)
mapversion = 8;
else
mapversion = 7;
tl = B_LITTLE32(mapversion); Bwrite(fil,&tl,4);
tl = B_LITTLE32(*daposx); Bwrite(fil,&tl,4);
tl = B_LITTLE32(*daposy); Bwrite(fil,&tl,4);
tl = B_LITTLE32(*daposz); Bwrite(fil,&tl,4);
ts = B_LITTLE16(*daang); Bwrite(fil,&ts,2);
ts = B_LITTLE16(*dacursectnum); Bwrite(fil,&ts,2);
ts = B_LITTLE16(numsectors); Bwrite(fil,&ts,2);
while (1)
{
tsect = (sectortype *)Bmalloc(sizeof(sectortype) * numsectors);
if (tsect == NULL)
break;
Bmemcpy(&tsect[0], &sector[0], sizeof(sectortype) * numsectors);
for (i=0; i<numsectors; i++)
{
sec = &tsect[i];
sec->wallptr = B_LITTLE16(sec->wallptr);
sec->wallnum = B_LITTLE16(sec->wallnum);
sec->ceilingz = B_LITTLE32(sec->ceilingz);
sec->floorz = B_LITTLE32(sec->floorz);
sec->ceilingstat = B_LITTLE16(sec->ceilingstat);
sec->floorstat = B_LITTLE16(sec->floorstat);
sec->ceilingpicnum = B_LITTLE16(sec->ceilingpicnum);
sec->ceilingheinum = B_LITTLE16(sec->ceilingheinum);
sec->floorpicnum = B_LITTLE16(sec->floorpicnum);
sec->floorheinum = B_LITTLE16(sec->floorheinum);
sec->lotag = B_LITTLE16(sec->lotag);
sec->hitag = B_LITTLE16(sec->hitag);
sec->extra = B_LITTLE16(sec->extra);
#ifdef YAX_ENABLE
if (editstatus == 0)
{
// if in-game, pack game-time bunchnum data back into structs
int32_t cf, bn;
for (cf=0; cf<2; cf++)
if ((bn=yax_getbunch(i, cf)) >= 0)
YAX_PTRBUNCHNUM(tsect, i, cf) = bn;
}
#endif
}
Bwrite(fil,&tsect[0],sizeof(sectortype) * numsectors);
Bfree(tsect);
ts = B_LITTLE16(numwalls);
Bwrite(fil,&ts,2);
twall = (walltype *)Bmalloc(sizeof(walltype) * numwalls);
if (twall == NULL)
break;
Bmemcpy(&twall[0], &wall[0], sizeof(walltype) * numwalls);
for (i=0; i<numwalls; i++)
{
wal = &twall[i];
wal->x = B_LITTLE32(wal->x);
wal->y = B_LITTLE32(wal->y);
wal->point2 = B_LITTLE16(wal->point2);
wal->nextwall = B_LITTLE16(wal->nextwall);
wal->nextsector = B_LITTLE16(wal->nextsector);
wal->cstat = B_LITTLE16(wal->cstat);
wal->picnum = B_LITTLE16(wal->picnum);
wal->overpicnum = B_LITTLE16(wal->overpicnum);
#ifdef YAX_ENABLE
if (editstatus == 0)
{
// if in-game, pack game-time yax-nextwall data back into structs
int16_t ynw;
if ((ynw=yax_getnextwall(i, YAX_CEILING))>=0)
YAX_PTRNEXTWALL(twall,i,YAX_CEILING) = ynw;
if ((ynw=yax_getnextwall(i, YAX_FLOOR))>=0)
YAX_PTRNEXTWALL(twall,i,YAX_FLOOR) = ynw;
}
#endif
wal->lotag = B_LITTLE16(wal->lotag);
wal->hitag = B_LITTLE16(wal->hitag);
wal->extra = B_LITTLE16(wal->extra);
}
Bwrite(fil,&twall[0],sizeof(walltype) * numwalls);
Bfree(twall);
ts = B_LITTLE16(numsprites); Bwrite(fil,&ts,2);
if (numsprites > 0)
{
tspri = (spritetype *)Bmalloc(sizeof(spritetype) * numsprites);
if (tspri == NULL)
break;
spri=tspri;
for (j=0; j<MAXSPRITES; j++)
{
if (sprite[j].statnum != MAXSTATUS)
{
Bmemcpy(spri,&sprite[j],sizeof(spritetype));
spri->x = B_LITTLE32(spri->x);
spri->y = B_LITTLE32(spri->y);
spri->z = B_LITTLE32(spri->z);
spri->cstat = B_LITTLE16(spri->cstat);
spri->picnum = B_LITTLE16(spri->picnum);
spri->sectnum = B_LITTLE16(spri->sectnum);
spri->statnum = B_LITTLE16(spri->statnum);
spri->ang = B_LITTLE16(spri->ang);
spri->owner = B_LITTLE16(spri->owner);
spri->xvel = B_LITTLE16(spri->xvel);
spri->yvel = B_LITTLE16(spri->yvel);
spri->zvel = B_LITTLE16(spri->zvel);
spri->lotag = B_LITTLE16(spri->lotag);
spri->hitag = B_LITTLE16(spri->hitag);
spri->extra = B_LITTLE16(spri->extra);
spri++;
}
}
Bwrite(fil,&tspri[0],sizeof(spritetype) * numsprites);
Bfree(tspri);
}
Bclose(fil);
return(0);
}
Bclose(fil);
if (tsect != NULL)
Bfree(tsect);
if (twall != NULL)
Bfree(twall);
if (tspri != NULL)
Bfree(tspri);
return(-1);
}
//
// setgamemode
//
// JBF: davidoption now functions as a windowed-mode flag (0 == windowed, 1 == fullscreen)
extern char videomodereset;
int32_t setgamemode(char davidoption, int32_t daxdim, int32_t daydim, int32_t dabpp)
{
int32_t i, j;
#ifdef USE_OPENGL
extern char nogl;
if (nogl) dabpp = 8;
#endif
daxdim = max(320, daxdim);
daydim = max(200, daydim);
if ((qsetmode == 200) && (videomodereset == 0) &&
(davidoption == fullscreen) && (xdim == daxdim) && (ydim == daydim) && (bpp == dabpp)
/*
#ifdef POLYMER
&& glrendmode != 4
#endif // POLYMER
*/
)
return(0);
strcpy(kensmessage,"!!!! BUILD engine&tools programmed by Ken Silverman of E.G. RI. (c) Copyright 1995 Ken Silverman. Summary: BUILD = Ken. !!!!");
// if (getkensmessagecrc(FP_OFF(kensmessage)) != 0x56c764d4)
// { OSD_Printf("Nice try.\n"); exit(0); }
//if (checkvideomode(&daxdim, &daydim, dabpp, davidoption)<0) return (-1);
//bytesperline is set in this function
j = bpp;
g_lastpalettesum = 0;
if (setvideomode(daxdim,daydim,dabpp,davidoption) < 0) return(-1);
// Workaround possible bugs in the GL driver
makeasmwriteable();
#ifdef USE_OPENGL
if (dabpp > 8) rendmode = glrendmode; // GL renderer
else if (dabpp == 8 && j > 8) rendmode = 0; // going from GL to software activates softpolymost
#endif
xdim = daxdim; ydim = daydim;
j = ydim*4*sizeof(intptr_t); //Leave room for horizlookup&horizlookup2
if (lookups != NULL)
Bfree((void *)lookups);
lookups = Bmalloc(j<<1);
if (lookups == NULL)
{
initprintf("OUT OF MEMORY in setgamemode!\n");
uninitengine();
exit(1);
}
horizlookup = lookups;
horizlookup2 = (intptr_t *)((intptr_t)lookups+j); // FIXME_SA
horizycent = ((ydim*4)>>1);
//Force drawrooms to call dosetaspect & recalculate stuff
oxyaspect = oxdimen = oviewingrange = -1;
setvlinebpl(bytesperline);
j = 0;
for (i=0; i<=ydim; i++) ylookup[i] = j, j += bytesperline;
setview(0L,0L,xdim-1,ydim-1);
clearallviews(0L);
setbrightness(curbrightness,0,0);
if (searchx < 0) { searchx = halfxdimen; searchy = (ydimen>>1); }
#ifdef USE_OPENGL
if (rendmode >= 3)
{
polymost_glreset();
polymost_glinit();
}
# ifdef POLYMER
if (rendmode == 4)
{
if (!polymer_init())
rendmode = 3;
}
#endif
#endif
qsetmode = 200;
return(0);
}
//
// nextpage
//
void nextpage(void)
{
int32_t i;
permfifotype *per;
//char snotbuf[32];
//j = 0; k = 0;
//for(i=0;i<4096;i++)
// if (waloff[i] != 0)
// {
// sprintf(snotbuf,"%d-%d",i,tilesizx[i]*tilesizy[i]);
// printext256((j>>5)*40+32,(j&31)*6,walock[i]>>3,-1,snotbuf,1);
// k += tilesizx[i]*tilesizy[i];
// j++;
// }
//sprintf(snotbuf,"Total: %d",k);
//printext256((j>>5)*40+32,(j&31)*6,31,-1,snotbuf,1);
switch (qsetmode)
{
case 200:
begindrawing(); //{{{
for (i=permtail; i!=permhead; i=((i+1)&(MAXPERMS-1)))
{
per = &permfifo[i];
if ((per->pagesleft > 0) && (per->pagesleft <= numpages))
dorotatesprite(per->sx,per->sy,per->z,per->a,per->picnum,
per->dashade,per->dapalnum,per->dastat,
per->cx1,per->cy1,per->cx2,per->cy2,per->uniqid);
}
enddrawing(); //}}}
OSD_Draw();
showframe(0);
begindrawing(); //{{{
for (i=permtail; i!=permhead; i=((i+1)&(MAXPERMS-1)))
{
per = &permfifo[i];
if (per->pagesleft >= 130)
dorotatesprite(per->sx,per->sy,per->z,per->a,per->picnum,
per->dashade,per->dapalnum,per->dastat,
per->cx1,per->cy1,per->cx2,per->cy2,per->uniqid);
if (per->pagesleft&127) per->pagesleft--;
if (((per->pagesleft&127) == 0) && (i == permtail))
permtail = ((permtail+1)&(MAXPERMS-1));
}
enddrawing(); //}}}
break;
case 350:
case 480:
break;
}
faketimerhandler();
if ((totalclock >= lastageclock+CACHEAGETIME) || (totalclock < lastageclock))
{ lastageclock = totalclock; agecache(); }
#ifdef USE_OPENGL
omdtims = mdtims; mdtims = getticks();
{
int32_t i;
for (i=0; i<MAXSPRITES; i++)
if ((mdpause&&spriteext[i].mdanimtims)||(spriteext[i].flags & SPREXT_NOMDANIM))
spriteext[i].mdanimtims+=mdtims-omdtims;
}
#endif
beforedrawrooms = 1;
numframes++;
}
//
// loadpics
//
int32_t loadpics(const char *filename, int32_t askedsize)
{
int32_t offscount, localtilestart, localtileend, dasiz;
int32_t i, j, fil, tilefilei, numtiles_dummy;
Bstrcpy(artfilename,filename);
Bmemset(tilesizx, 0, sizeof(tilesizx));
Bmemset(tilesizy, 0, sizeof(tilesizy));
Bmemset(picanm, 0, sizeof(picanm));
artsize = 0;
for (tilefilei=0; tilefilei<MAXTILEFILES; tilefilei++)
{
artfilename[7] = (tilefilei%10)+48;
artfilename[6] = ((tilefilei/10)%10)+48;
artfilename[5] = ((tilefilei/100)%10)+48;
if ((fil = kopen4load(artfilename,0)) != -1)
{
kread(fil,&artversion,4); artversion = B_LITTLE32(artversion);
if (artversion != 1)
{
initprintf("loadpics: Invalid art file version in %s\n", artfilename);
kclose(fil);
continue;
}
kread(fil,&numtiles_dummy,4);
kread(fil,&localtilestart,4); localtilestart = B_LITTLE32(localtilestart);
kread(fil,&localtileend,4); localtileend = B_LITTLE32(localtileend);
if ((uint32_t)localtilestart >= MAXTILES || (uint32_t)localtileend >= MAXTILES)
{
initprintf("loadpics: Invalid localtilestart or localtileend in %s\n", artfilename);
kclose(fil);
continue;
}
if (localtileend <= localtilestart)
{
initprintf("loadpics: localtileend <= localtilestart in %s\n", artfilename);
kclose(fil);
continue;
}
kread(fil,&tilesizx[localtilestart],(localtileend-localtilestart+1)<<1);
kread(fil,&tilesizy[localtilestart],(localtileend-localtilestart+1)<<1);
kread(fil,&picanm[localtilestart],(localtileend-localtilestart+1)<<2);
for (i=localtilestart; i<=localtileend; i++)
{
tilesizx[i] = B_LITTLE16(tilesizx[i]);
tilesizy[i] = B_LITTLE16(tilesizy[i]);
picanm[i] = B_LITTLE32(picanm[i]);
}
offscount = 4+4+4+4+((localtileend-localtilestart+1)<<3);
for (i=localtilestart; i<=localtileend; i++)
{
tilefilenum[i] = tilefilei;
tilefileoffs[i] = offscount;
dasiz = (int32_t)(tilesizx[i]*tilesizy[i]);
offscount += dasiz;
artsize += ((dasiz+15)&0xfffffff0);
}
#ifdef WITHKPLIB
if (filegrp[fil] == 254) // from zip
{
i = kfilelength(fil);
artptrs[tilefilei] = Brealloc(artptrs[tilefilei], i);
klseek(fil, 0, BSEEK_SET);
kread(fil, artptrs[tilefilei], i);
}
#endif
kclose(fil);
}
}
Bmemset(gotpic, 0, sizeof(gotpic));
//cachesize = min((int32_t)((Bgetsysmemsize()/100)*60),max(artsize,askedsize));
if (Bgetsysmemsize() <= (uint32_t)askedsize)
cachesize = (Bgetsysmemsize()/100)*60;
else
cachesize = askedsize;
while ((pic = Bmalloc(cachesize)) == NULL)
{
cachesize -= 65536;
if (cachesize < 65536) return(-1);
}
initcache((intptr_t)pic, cachesize);
for (i=0; i<MAXTILES; i++)
{
j = 15;
while ((j > 1) && (pow2long[j] > tilesizx[i])) j--;
picsiz[i] = ((uint8_t)j);
j = 15;
while ((j > 1) && (pow2long[j] > tilesizy[i])) j--;
picsiz[i] += ((uint8_t)(j<<4));
}
artfil = -1;
artfilnum = -1;
artfilplc = 0L;
return(0);
}
//
// loadtile
//
void loadtile(int16_t tilenume)
{
int32_t i, dasiz;
if ((unsigned)tilenume >= (unsigned)MAXTILES) return;
if ((dasiz = tilesizx[tilenume]*tilesizy[tilenume]) <= 0) return;
#ifdef WITHKPLIB
i = tilefilenum[tilenume];
if (artptrs[i]) // from zip
{
waloff[tilenume] = (intptr_t)(artptrs[i]) + tilefileoffs[tilenume];
faketimerhandler();
// OSD_Printf("loaded tile %d from zip\n", tilenume);
return;
}
#endif
if (i != artfilnum)
{
if (artfil != -1) kclose(artfil);
artfilnum = i;
artfilplc = 0L;
artfilename[7] = (i%10)+48;
artfilename[6] = ((i/10)%10)+48;
artfilename[5] = ((i/100)%10)+48;
artfil = kopen4load(artfilename,0);
faketimerhandler();
}
// if (cachedebug) OSD_Printf("Tile:%d\n",tilenume);
// dummy tiles for highres replacements and tilefromtexture definitions
if (faketilesiz[tilenume])
{
if (faketilesiz[tilenume] == -1)
{
walock[tilenume] = 255; // permanent tile
allocache(&waloff[tilenume], dasiz, &walock[tilenume]);
Bmemset((char *)waloff[tilenume],0,dasiz);
}
else if (faketiledata[tilenume] != NULL)
{
walock[tilenume] = 255;
allocache(&waloff[tilenume], dasiz, &walock[tilenume]);
qlz_decompress(faketiledata[tilenume], (char *)waloff[tilenume], state_decompress);
Bfree(faketiledata[tilenume]);
faketiledata[tilenume] = NULL;
}
faketimerhandler();
return;
}
if (waloff[tilenume] == 0)
{
walock[tilenume] = 199;
allocache(&waloff[tilenume],dasiz,&walock[tilenume]);
}
if (artfilplc != tilefileoffs[tilenume])
{
klseek(artfil,tilefileoffs[tilenume]-artfilplc,BSEEK_CUR);
faketimerhandler();
}
kread(artfil, (char *)waloff[tilenume], dasiz);
faketimerhandler();
artfilplc = tilefileoffs[tilenume]+dasiz;
}
//
// allocatepermanenttile
//
int32_t allocatepermanenttile(int16_t tilenume, int32_t xsiz, int32_t ysiz)
{
int32_t j, dasiz;
if ((xsiz <= 0) || (ysiz <= 0) || ((unsigned)tilenume >= (unsigned)MAXTILES))
return(0);
dasiz = xsiz*ysiz;
walock[tilenume] = 255;
allocache(&waloff[tilenume],dasiz,&walock[tilenume]);
tilesizx[tilenume] = xsiz;
tilesizy[tilenume] = ysiz;
picanm[tilenume] = 0;
j = 15; while ((j > 1) && (pow2long[j] > xsiz)) j--;
picsiz[tilenume] = ((uint8_t)j);
j = 15; while ((j > 1) && (pow2long[j] > ysiz)) j--;
picsiz[tilenume] += ((uint8_t)(j<<4));
return(waloff[tilenume]);
}
#if 0
//
// copytilepiece
//
void copytilepiece(int32_t tilenume1, int32_t sx1, int32_t sy1, int32_t xsiz, int32_t ysiz,
int32_t tilenume2, int32_t sx2, int32_t sy2)
{
char *ptr1, *ptr2, dat;
int32_t xsiz1, ysiz1, xsiz2, ysiz2, i, j, x1, y1, x2, y2;
xsiz1 = tilesizx[tilenume1]; ysiz1 = tilesizy[tilenume1];
xsiz2 = tilesizx[tilenume2]; ysiz2 = tilesizy[tilenume2];
if ((xsiz1 > 0) && (ysiz1 > 0) && (xsiz2 > 0) && (ysiz2 > 0))
{
if (waloff[tilenume1] == 0) loadtile(tilenume1);
if (waloff[tilenume2] == 0) loadtile(tilenume2);
x1 = sx1;
for (i=0; i<xsiz; i++)
{
y1 = sy1;
for (j=0; j<ysiz; j++)
{
x2 = sx2+i;
y2 = sy2+j;
if ((x2 >= 0) && (y2 >= 0) && (x2 < xsiz2) && (y2 < ysiz2))
{
ptr1 = (char *)(waloff[tilenume1] + x1*ysiz1 + y1);
ptr2 = (char *)(waloff[tilenume2] + x2*ysiz2 + y2);
dat = *ptr1;
if (dat != 255)
*ptr2 = *ptr1;
}
y1++; if (y1 >= ysiz1) y1 = 0;
}
x1++; if (x1 >= xsiz1) x1 = 0;
}
}
}
#endif
//
// qloadkvx
//
int32_t qloadkvx(int32_t voxindex, const char *filename)
{
int32_t i, fil, dasiz, lengcnt, lengtot;
char *ptr;
if ((fil = kopen4load(filename,0)) == -1) return -1;
lengcnt = 0;
lengtot = kfilelength(fil);
for (i=0; i<MAXVOXMIPS; i++)
{
kread(fil,&dasiz,4); dasiz = B_LITTLE32(dasiz);
//Must store filenames to use cacheing system :(
voxlock[voxindex][i] = 200;
allocache(&voxoff[voxindex][i],dasiz,&voxlock[voxindex][i]);
ptr = (char *)voxoff[voxindex][i];
kread(fil,ptr,dasiz);
lengcnt += dasiz+4;
if (lengcnt >= lengtot-768) break;
}
kclose(fil);
#ifdef USE_OPENGL
if (voxmodels[voxindex])
{
voxfree(voxmodels[voxindex]);
voxmodels[voxindex] = NULL;
}
voxmodels[voxindex] = voxload(filename);
#endif
return 0;
}
//
// clipinsidebox
//
int32_t clipinsidebox(int32_t x, int32_t y, int16_t wallnum, int32_t walldist)
{
walltype *wal;
int32_t x1, y1, x2, y2, r;
r = (walldist<<1);
wal = &wall[wallnum]; x1 = wal->x+walldist-x; y1 = wal->y+walldist-y;
wal = &wall[wal->point2]; x2 = wal->x+walldist-x; y2 = wal->y+walldist-y;
if ((x1 < 0) && (x2 < 0)) return(0);
if ((y1 < 0) && (y2 < 0)) return(0);
if ((x1 >= r) && (x2 >= r)) return(0);
if ((y1 >= r) && (y2 >= r)) return(0);
x2 -= x1; y2 -= y1;
if (x2*(walldist-y1) >= y2*(walldist-x1)) //Front
{
if (x2 > 0) x2 *= (0-y1); else x2 *= (r-y1);
if (y2 > 0) y2 *= (r-x1); else y2 *= (0-x1);
return(x2 < y2);
}
if (x2 > 0) x2 *= (r-y1); else x2 *= (0-y1);
if (y2 > 0) y2 *= (0-x1); else y2 *= (r-x1);
return((x2 >= y2)<<1);
}
//
// clipinsideboxline
//
int32_t clipinsideboxline(int32_t x, int32_t y, int32_t x1, int32_t y1, int32_t x2, int32_t y2, int32_t walldist)
{
int32_t r;
r = (walldist<<1);
x1 += walldist-x; x2 += walldist-x;
if ((x1 < 0) && (x2 < 0)) return(0);
if ((x1 >= r) && (x2 >= r)) return(0);
y1 += walldist-y; y2 += walldist-y;
if ((y1 < 0) && (y2 < 0)) return(0);
if ((y1 >= r) && (y2 >= r)) return(0);
x2 -= x1; y2 -= y1;
if (x2*(walldist-y1) >= y2*(walldist-x1)) //Front
{
if (x2 > 0) x2 *= (0-y1); else x2 *= (r-y1);
if (y2 > 0) y2 *= (r-x1); else y2 *= (0-x1);
return(x2 < y2);
}
if (x2 > 0) x2 *= (r-y1); else x2 *= (0-y1);
if (y2 > 0) y2 *= (0-x1); else y2 *= (r-x1);
return((x2 >= y2)<<1);
}
//
// inside
//
int32_t inside(int32_t x, int32_t y, int16_t sectnum)
{
walltype *wal;
int32_t i, x1, y1, x2, y2;
uint32_t cnt;
if ((sectnum < 0) || (sectnum >= numsectors)) return(-1);
cnt = 0;
wal = &wall[sector[sectnum].wallptr];
i = sector[sectnum].wallnum;
do
{
y1 = wal->y-y; y2 = wall[wal->point2].y-y;
if ((y1^y2) < 0)
{
x1 = wal->x-x; x2 = wall[wal->point2].x-x;
if ((x1^x2) >= 0) cnt ^= x1; else cnt ^= (x1*y2-x2*y1)^y2;
}
wal++; i--;
}
while (i);
return(cnt>>31);
}
//
// ksqrt
//
int32_t ksqrt(int32_t num)
{
return(nsqrtasm(num));
}
//
// krecip
//
int32_t krecip(int32_t num)
{
return(krecipasm(num));
}
void spriteheightofs(int16_t i, int32_t *height, int32_t *zofs, int32_t alsotileyofs)
{
int32_t hei, flooraligned=((sprite[i].cstat&48)==32);
if (zofs)
*zofs = 0;
if (flooraligned)
{
if (height)
*height = 0;
return;
}
hei = (tilesizy[sprite[i].picnum]*sprite[i].yrepeat)<<2;
if (zofs)
{
if (sprite[i].cstat&128)
*zofs = hei>>1;
if (alsotileyofs && (unsigned)sprite[i].picnum < MAXTILES)
if (picanm[sprite[i].picnum]&0x00ff0000)
*zofs -= ((int8_t)((picanm[sprite[i].picnum]>>16)&255))*sprite[i].yrepeat<<2;
}
*height = hei;
}
//
// setsprite
//
int32_t setsprite(int16_t spritenum, const vec3_t *new)
{
int16_t tempsectnum = sprite[spritenum].sectnum;
if ((void *)new != (void *)&sprite[spritenum])
Bmemcpy(&sprite[spritenum], new, sizeof(vec3_t));
updatesector(new->x,new->y,&tempsectnum);
if (tempsectnum < 0)
return(-1);
if (tempsectnum != sprite[spritenum].sectnum)
changespritesect(spritenum,tempsectnum);
return(0);
}
int32_t setspritez(int16_t spritenum, const vec3_t *new)
{
int16_t tempsectnum = sprite[spritenum].sectnum;
if ((void *)new != (void *)&sprite[spritenum])
Bmemcpy(&sprite[spritenum], new, sizeof(vec3_t));
updatesectorz(new->x,new->y,new->z,&tempsectnum);
if (tempsectnum < 0)
return(-1);
if (tempsectnum != sprite[spritenum].sectnum)
changespritesect(spritenum,tempsectnum);
return(0);
}
//
// changespritesect
//
int32_t changespritesect(int16_t spritenum, int16_t newsectnum)
{
if ((newsectnum < 0) || (newsectnum > MAXSECTORS)) return(-1);
if (sprite[spritenum].sectnum == newsectnum) return(0);
if (sprite[spritenum].sectnum == MAXSECTORS) return(-1);
if (deletespritesect(spritenum) < 0) return(-1);
insertspritesect(newsectnum);
return(0);
}
//
// changespritestat
//
int32_t changespritestat(int16_t spritenum, int16_t newstatnum)
{
if ((newstatnum < 0) || (newstatnum > MAXSTATUS)) return(-1);
if (sprite[spritenum].statnum == newstatnum) return(0);
if (sprite[spritenum].statnum == MAXSTATUS) return(-1);
if (deletespritestat(spritenum) < 0) return(-1);
insertspritestat(newstatnum);
return(0);
}
//
// nextsectorneighborz
//
int32_t nextsectorneighborz(int16_t sectnum, int32_t thez, int16_t topbottom, int16_t direction)
{
walltype *wal;
int32_t i, testz, nextz;
int16_t sectortouse;
if (direction == 1) nextz = INT32_MAX; else nextz = INT32_MIN;
sectortouse = -1;
wal = &wall[sector[sectnum].wallptr];
i = sector[sectnum].wallnum;
do
{
if (wal->nextsector >= 0)
{
if (topbottom == 1)
{
testz = sector[wal->nextsector].floorz;
if (direction == 1)
{
if ((testz > thez) && (testz < nextz))
{
nextz = testz;
sectortouse = wal->nextsector;
}
}
else
{
if ((testz < thez) && (testz > nextz))
{
nextz = testz;
sectortouse = wal->nextsector;
}
}
}
else
{
testz = sector[wal->nextsector].ceilingz;
if (direction == 1)
{
if ((testz > thez) && (testz < nextz))
{
nextz = testz;
sectortouse = wal->nextsector;
}
}
else
{
if ((testz < thez) && (testz > nextz))
{
nextz = testz;
sectortouse = wal->nextsector;
}
}
}
}
wal++;
i--;
}
while (i != 0);
return(sectortouse);
}
//
// cansee
//
int32_t cansee(int32_t x1, int32_t y1, int32_t z1, int16_t sect1, int32_t x2, int32_t y2, int32_t z2, int16_t sect2)
{
sectortype *sec;
walltype *wal, *wal2;
int32_t cnt, nexts, x, y, z, cfz[2], dasectnum, dacnt, danum;
int32_t x21, y21, z21, x31, y31, x34, y34, bot, t;
static uint8_t sectbitmap[MAXSECTORS>>3];
#ifdef YAX_ENABLE
int16_t pendingsectnum;
vec3_t pendingvec;
int32_t cfz1[2], cfz2[2]; // both wrt dasectnum
int16_t bn[2];
// invalid sectnums can happen, for example if the player is using noclip
if (sect1 < 0 || sect2 < 0)
return 0;
Bmemset(&pendingvec, 0, sizeof(vec3_t)); // compiler-happy
#endif
Bmemset(sectbitmap, 0, (numsectors+7)>>3);
#ifdef YAX_ENABLE
restart_grand:
#endif
if ((x1 == x2) && (y1 == y2)) return(sect1 == sect2);
#ifdef YAX_ENABLE
pendingsectnum = -1;
#endif
x21 = x2-x1; y21 = y2-y1; z21 = z2-z1;
sectbitmap[sect1>>3] |= (1<<(sect1&7));
clipsectorlist[0] = sect1; danum = 1;
for (dacnt=0; dacnt<danum; dacnt++)
{
dasectnum = clipsectorlist[dacnt]; sec = &sector[dasectnum];
#ifdef YAX_ENABLE
yax_getbunches(dasectnum, &bn[0], &bn[1]);
getzsofslope(dasectnum, x1,y1, &cfz1[0], &cfz1[1]);
getzsofslope(dasectnum, x2,y2, &cfz2[0], &cfz2[1]);
#endif
for (cnt=sec->wallnum,wal=&wall[sec->wallptr]; cnt>0; cnt--,wal++)
{
wal2 = &wall[wal->point2];
x31 = wal->x-x1; x34 = wal->x-wal2->x;
y31 = wal->y-y1; y34 = wal->y-wal2->y;
bot = y21*x34-x21*y34; if (bot <= 0) continue;
t = y21*x31-x21*y31; if ((unsigned)t >= (unsigned)bot) continue;
t = y31*x34-x31*y34;
if ((unsigned)t >= (unsigned)bot)
{
#ifdef YAX_ENABLE
if (t >= bot)
{
int32_t cf, frac, ns;
for (cf=0; cf<2; cf++)
{
if ((cf==0 && bn[0]>=0 && z1 > cfz1[0] && cfz2[0] > z2) ||
(cf==1 && bn[1]>=0 && z1 < cfz1[1] && cfz2[1] < z2))
{
if ((cfz1[cf]-cfz2[cf])-(z1-z2)==0)
continue;
frac = divscale24(z1-cfz1[cf], (z1-z2)-(cfz1[cf]-cfz2[cf]));
if ((unsigned)frac >= (1<<24))
continue;
x = x1 + mulscale24(x21,frac);
y = y1 + mulscale24(y21,frac);
ns = yax_getneighborsect(x, y, dasectnum, cf, NULL);
if (ns < 0)
continue;
if (!(sectbitmap[ns>>3] & (1<<(ns&7))) && pendingsectnum==-1)
{
sectbitmap[ns>>3] |= (1<<(ns&7));
pendingsectnum = ns;
pendingvec.x = x;
pendingvec.y = y;
pendingvec.z = z1 + mulscale24(z21,frac);
}
}
}
}
#endif
continue;
}
nexts = wal->nextsector;
#ifdef YAX_ENABLE
if (bn[0]<0 && bn[1]<0)
#endif
if ((nexts < 0) || (wal->cstat&32))
return(0);
t = divscale24(t,bot);
x = x1 + mulscale24(x21,t);
y = y1 + mulscale24(y21,t);
z = z1 + mulscale24(z21,t);
getzsofslope((int16_t)dasectnum, x,y, &cfz[0],&cfz[1]);
if ((z <= cfz[0]) || (z >= cfz[1]))
{
#ifdef YAX_ENABLE
int32_t cf, frac;
// XXX: Is this any good?
for (cf=0; cf<2; cf++)
if ((cf==0 && bn[0]>=0 && z <= cfz[0] && z1 >= cfz1[0]) ||
(cf==1 && bn[1]>=0 && z >= cfz[1] && z1 <= cfz1[1]))
{
if ((cfz1[cf]-cfz[cf])-(z1-z)==0)
continue;
frac = divscale24(z1-cfz1[cf], (z1-z)-(cfz1[cf]-cfz[cf]));
t = mulscale24(t, frac);
if ((unsigned)t < (1<<24))
{
x = x1 + mulscale24(x21,t);
y = y1 + mulscale24(y21,t);
nexts = yax_getneighborsect(x, y, dasectnum, cf, NULL);
if (nexts >= 0)
goto add_nextsector;
}
}
#endif
return(0);
}
#ifdef YAX_ENABLE
if ((nexts < 0) || (wal->cstat&32))
return 0;
#endif
getzsofslope((int16_t)nexts,x,y,&cfz[0],&cfz[1]);
if ((z <= cfz[0]) || (z >= cfz[1]))
return(0);
add_nextsector:
if (!(sectbitmap[nexts>>3] & (1<<(nexts&7))))
{
sectbitmap[nexts>>3] |= (1<<(nexts&7));
clipsectorlist[danum++] = nexts;
}
}
#ifdef YAX_ENABLE
if (pendingsectnum>=0)
{
sect1 = pendingsectnum;
x1 = pendingvec.x;
y1 = pendingvec.y;
z1 = pendingvec.z;
goto restart_grand;
}
#endif
}
if ((sectbitmap[sect2>>3] & (1<<(sect2&7))))
return 1;
return(0);
}
static int32_t hitscan_hitsectcf=-1;
// stat, heinum, z: either ceiling- or floor-
// how: -1: behave like ceiling, 1: behave like floor
static int32_t hitscan_trysector(const vec3_t *sv, const sectortype *sec, hitdata_t *hitinfo,
int32_t vx, int32_t vy, int32_t vz,
int16_t stat, int16_t heinum, int32_t z, int32_t how, const intptr_t *tmp)
{
int32_t x1 = INT32_MAX, y1, z1;
int32_t dax, day, i, j;
walltype *wal, *wal2;
if (stat&2)
{
wal = &wall[sec->wallptr]; wal2 = &wall[wal->point2];
dax = wal2->x-wal->x; day = wal2->y-wal->y;
i = nsqrtasm(dax*dax+day*day); if (i == 0) return 1; //continue;
i = divscale15(heinum,i);
dax *= i; day *= i;
j = (vz<<8)-dmulscale15(dax,vy,-day,vx);
if (j != 0)
{
i = ((z - sv->z)<<8)+dmulscale15(dax,sv->y-wal->y,-day,sv->x-wal->x);
if (((i^j) >= 0) && ((klabs(i)>>1) < klabs(j)))
{
i = divscale30(i,j);
x1 = sv->x + mulscale30(vx,i);
y1 = sv->y + mulscale30(vy,i);
z1 = sv->z + mulscale30(vz,i);
}
}
}
else if ((how*vz > 0) && (how*sv->z <= how*z))
{
z1 = z; i = z1-sv->z;
if ((klabs(i)>>1) < vz*how)
{
i = divscale30(i,vz);
x1 = sv->x + mulscale30(vx,i);
y1 = sv->y + mulscale30(vy,i);
}
}
if ((x1 != INT32_MAX) && (klabs(x1-sv->x)+klabs(y1-sv->y) < klabs((hitinfo->pos.x)-sv->x)+klabs((hitinfo->pos.y)-sv->y)))
{
if (tmp==NULL)
{
if (inside(x1,y1,sec-sector) != 0)
{
hitinfo->hitsect = sec-sector; hitinfo->hitwall = -1; hitinfo->hitsprite = -1;
hitinfo->pos.x = x1; hitinfo->pos.y = y1; hitinfo->pos.z = z1;
hitscan_hitsectcf = (how+1)>>1;
}
}
else
{
int32_t curidx=(int32_t)tmp[0];
spritetype *curspr=(spritetype *)tmp[1];
int32_t thislastsec = tmp[2];
if (!thislastsec)
{
if (inside(x1,y1,sec-sector) != 0)
{
hitinfo->hitsect = curspr->sectnum; hitinfo->hitwall = -1; hitinfo->hitsprite = curspr-sprite;
hitinfo->pos.x = x1; hitinfo->pos.y = y1; hitinfo->pos.z = z1;
}
}
#ifdef HAVE_CLIPSHAPE_FEATURE
else
{
for (i=clipinfo[curidx].qbeg; i<clipinfo[curidx].qend; i++)
{
if (inside(x1,y1,sectq[i]) != 0)
{
hitinfo->hitsect = curspr->sectnum; hitinfo->hitwall = -1; hitinfo->hitsprite = curspr-sprite;
hitinfo->pos.x = x1; hitinfo->pos.y = y1; hitinfo->pos.z = z1;
break;
}
}
}
#endif
}
}
return 0;
}
//
// hitscan
//
static int32_t clipsprite_initindex(int32_t curidx, spritetype *curspr, int32_t *clipsectcnt, const vec3_t *vect);
int32_t hitscan(const vec3_t *sv, int16_t sectnum, int32_t vx, int32_t vy, int32_t vz,
hitdata_t *hitinfo, uint32_t cliptype)
{
sectortype *sec;
walltype *wal, *wal2;
spritetype *spr;
int32_t z, zz, x1, y1=0, z1=0, x2, y2, x3, y3, x4, y4, intx, inty, intz;
int32_t topt, topu, bot, dist, offx, offy, cstat;
int32_t i, k, l, tilenum, xoff, yoff, dax, day, daz, daz2;
int32_t ang, cosang, sinang, xspan, yspan, xrepeat, yrepeat;
int32_t dawalclipmask, dasprclipmask;
int16_t tempshortcnt, tempshortnum, dasector, startwall, endwall;
int16_t nextsector;
char clipyou;
spritetype *curspr = NULL;
int32_t clipspritecnt, curidx=-1;
// tmp: { (int32_t)curidx, (spritetype *)curspr, (!=0 if outer sector) }
intptr_t tmp[3], *tmpptr=NULL;
#ifdef YAX_ENABLE
vec3_t newsv;
int32_t oldhitsect = -1, oldhitsect2 = -2;
#endif
hitinfo->hitsect = -1; hitinfo->hitwall = -1; hitinfo->hitsprite = -1;
if (sectnum < 0) return(-1);
dawalclipmask = (cliptype&65535);
dasprclipmask = (cliptype>>16);
#ifdef YAX_ENABLE
restart_grand:
#endif
hitinfo->pos.x = hitscangoalx; hitinfo->pos.y = hitscangoaly;
clipsectorlist[0] = sectnum;
tempshortcnt = 0; tempshortnum = 1;
clipspritecnt = clipspritenum = 0;
do
{
#ifdef HAVE_CLIPSHAPE_FEATURE
if (tempshortcnt >= tempshortnum)
{
// one bunch of sectors completed, prepare the next
if (!curspr)
mapinfo_set(&origmapinfo, &clipmapinfo); // replace sector and wall with clip map
curspr = &sprite[clipspritelist[clipspritecnt]];
if (curidx < 0) // per-sprite init
curidx = pictoidx[curspr->picnum];
else
curidx = clipinfo[curidx].next;
while (curidx>=0 && (curspr->cstat&32) != (sector[sectq[clipinfo[curidx].qbeg]].CM_CSTAT&32))
curidx = clipinfo[curidx].next;
if (curidx < 0)
{
clipspritecnt++;
continue;
}
tmp[0] = (intptr_t)curidx;
tmp[1] = (intptr_t)curspr;
tmpptr = tmp;
clipsprite_initindex(curidx, curspr, &i, sv); // &i is dummy
tempshortnum = (int16_t)clipsectnum;
tempshortcnt = 0;
}
#endif
dasector = clipsectorlist[tempshortcnt]; sec = &sector[dasector];
i = 1;
#ifdef HAVE_CLIPSHAPE_FEATURE
if (curspr)
{
if (dasector == sectq[clipinfo[curidx].qend])
{
i = -1;
tmp[2] = 1;
}
else tmp[2] = 0;
}
#endif
if (hitscan_trysector(sv, sec, hitinfo, vx,vy,vz, sec->ceilingstat, sec->ceilingheinum, sec->ceilingz, -i, tmpptr))
continue;
if (hitscan_trysector(sv, sec, hitinfo, vx,vy,vz, sec->floorstat, sec->floorheinum, sec->floorz, i, tmpptr))
continue;
startwall = sec->wallptr; endwall = startwall + sec->wallnum;
for (z=startwall,wal=&wall[startwall]; z<endwall; z++,wal++)
{
if (curspr && wal->nextsector<0) continue;
wal2 = &wall[wal->point2];
x1 = wal->x; y1 = wal->y; x2 = wal2->x; y2 = wal2->y;
if ((x1-sv->x)*(y2-sv->y) < (x2-sv->x)*(y1-sv->y)) continue;
if (rintersect(sv->x,sv->y,sv->z, vx,vy,vz, x1,y1, x2,y2, &intx,&inty,&intz) == 0) continue;
if (klabs(intx-sv->x)+klabs(inty-sv->y) >= klabs((hitinfo->pos.x)-sv->x)+klabs((hitinfo->pos.y)-sv->y))
continue;
nextsector = wal->nextsector;
if (!curspr)
{
if ((nextsector < 0) || (wal->cstat&dawalclipmask))
{
hitinfo->hitsect = dasector; hitinfo->hitwall = z; hitinfo->hitsprite = -1;
hitinfo->pos.x = intx; hitinfo->pos.y = inty; hitinfo->pos.z = intz;
continue;
}
getzsofslope(nextsector,intx,inty,&daz,&daz2);
if ((intz <= daz) || (intz >= daz2))
{
hitinfo->hitsect = dasector; hitinfo->hitwall = z; hitinfo->hitsprite = -1;
hitinfo->pos.x = intx; hitinfo->pos.y = inty; hitinfo->pos.z = intz;
continue;
}
}
#ifdef HAVE_CLIPSHAPE_FEATURE
else
{
int32_t cz,fz;
if (wal->cstat&dawalclipmask)
{
hitinfo->hitsect = curspr->sectnum; hitinfo->hitwall = -1; hitinfo->hitsprite = curspr-sprite;
hitinfo->pos.x = intx; hitinfo->pos.y = inty; hitinfo->pos.z = intz;
continue;
}
getzsofslope(nextsector,intx,inty,&daz,&daz2);
getzsofslope(sectq[clipinfo[curidx].qend],intx,inty,&cz,&fz);
// ceil cz daz daz2 fz floor
if ((cz <= intz && intz <= daz) || (daz2 <= intz && intz <= fz))
{
hitinfo->hitsect = curspr->sectnum; hitinfo->hitwall = -1; hitinfo->hitsprite = curspr-sprite;
hitinfo->pos.x = intx; hitinfo->pos.y = inty; hitinfo->pos.z = intz;
continue;
}
}
#endif
for (zz=tempshortnum-1; zz>=0; zz--)
if (clipsectorlist[zz] == nextsector) break;
if (zz < 0) clipsectorlist[tempshortnum++] = nextsector;
}
#ifdef HAVE_CLIPSHAPE_FEATURE
if (curspr)
continue;
#endif
for (z=headspritesect[dasector]; z>=0; z=nextspritesect[z])
{
spr = &sprite[z];
cstat = spr->cstat;
#ifdef USE_OPENGL
if (!hitallsprites)
#endif
if ((cstat&dasprclipmask) == 0) continue;
#ifdef HAVE_CLIPSHAPE_FEATURE
// try and see whether this sprite's picnum has sector-like clipping data
i = pictoidx[spr->picnum];
// handle sector-like floor sprites separately
while (i>=0 && (spr->cstat&32) != (clipmapinfo.sector[sectq[clipinfo[i].qbeg]].CM_CSTAT&32))
i = clipinfo[i].next;
if (i>=0 && clipspritenum<MAXCLIPNUM)
{
clipspritelist[clipspritenum++] = z;
continue;
}
#endif
x1 = spr->x; y1 = spr->y; z1 = spr->z;
switch (cstat&48)
{
case 0:
topt = vx*(x1-sv->x) + vy*(y1-sv->y); if (topt <= 0) continue;
bot = vx*vx + vy*vy; if (bot == 0) continue;
intz = sv->z+scale(vz,topt,bot);
i = (tilesizy[spr->picnum]*spr->yrepeat<<2);
if (cstat&128) z1 += (i>>1);
if (picanm[spr->picnum]&0x00ff0000) z1 -= ((int32_t)((int8_t)((picanm[spr->picnum]>>16)&255))*spr->yrepeat<<2);
if ((intz > z1) || (intz < z1-i)) continue;
topu = vx*(y1-sv->y) - vy*(x1-sv->x);
offx = scale(vx,topu,bot);
offy = scale(vy,topu,bot);
dist = offx*offx + offy*offy;
i = tilesizx[spr->picnum]*spr->xrepeat; i *= i;
if (dist > (i>>7)) continue;
intx = sv->x + scale(vx,topt,bot);
inty = sv->y + scale(vy,topt,bot);
if (klabs(intx-sv->x)+klabs(inty-sv->y) > klabs((hitinfo->pos.x)-sv->x)+klabs((hitinfo->pos.y)-sv->y)) continue;
hitinfo->hitsect = dasector; hitinfo->hitwall = -1; hitinfo->hitsprite = z;
hitinfo->pos.x = intx; hitinfo->pos.y = inty; hitinfo->pos.z = intz;
break;
case 16:
//These lines get the 2 points of the rotated sprite
//Given: (x1, y1) starts out as the center point
tilenum = spr->picnum;
xoff = (int32_t)((int8_t)((picanm[tilenum]>>8)&255))+((int32_t)spr->xoffset);
if ((cstat&4) > 0) xoff = -xoff;
k = spr->ang; l = spr->xrepeat;
dax = sintable[k&2047]*l; day = sintable[(k+1536)&2047]*l;
l = tilesizx[tilenum]; k = (l>>1)+xoff;
x1 -= mulscale16(dax,k); x2 = x1+mulscale16(dax,l);
y1 -= mulscale16(day,k); y2 = y1+mulscale16(day,l);
if ((cstat&64) != 0) //back side of 1-way sprite
if ((x1-sv->x)*(y2-sv->y) < (x2-sv->x)*(y1-sv->y)) continue;
if (rintersect(sv->x,sv->y,sv->z,vx,vy,vz,x1,y1,x2,y2,&intx,&inty,&intz) == 0) continue;
if (klabs(intx-sv->x)+klabs(inty-sv->y) > klabs((hitinfo->pos.x)-sv->x)+klabs((hitinfo->pos.y)-sv->y)) continue;
k = ((tilesizy[spr->picnum]*spr->yrepeat)<<2);
if (cstat&128) daz = spr->z+(k>>1); else daz = spr->z;
if (picanm[spr->picnum]&0x00ff0000) daz -= ((int32_t)((int8_t)((picanm[spr->picnum]>>16)&255))*spr->yrepeat<<2);
if ((intz < daz) && (intz > daz-k))
{
hitinfo->hitsect = dasector; hitinfo->hitwall = -1; hitinfo->hitsprite = z;
hitinfo->pos.x = intx; hitinfo->pos.y = inty; hitinfo->pos.z = intz;
}
break;
case 32:
if (vz == 0) continue;
intz = z1;
if (((intz-sv->z)^vz) < 0) continue;
if ((cstat&64) != 0)
if ((sv->z > intz) == ((cstat&8)==0)) continue;
#if 1 // Abyss crash prevention code ((intz-sv->z)*zx overflowing a 8-bit word)
zz=(int32_t)((intz-sv->z)*vx);
intx = sv->x+scale(zz,1,vz);
zz=(int32_t)((intz-sv->z)*vy);
inty = sv->y+scale(zz,1,vz);
#else
intx = sv->x+scale(intz-sv->z,vx,vz);
inty = sv->y+scale(intz-sv->z,vy,vz);
#endif
if (klabs(intx-sv->x)+klabs(inty-sv->y) > klabs((hitinfo->pos.x)-sv->x)+klabs((hitinfo->pos.y)-sv->y)) continue;
tilenum = spr->picnum;
xoff = (int32_t)((int8_t)((picanm[tilenum]>>8)&255))+((int32_t)spr->xoffset);
yoff = (int32_t)((int8_t)((picanm[tilenum]>>16)&255))+((int32_t)spr->yoffset);
if ((cstat&4) > 0) xoff = -xoff;
if ((cstat&8) > 0) yoff = -yoff;
ang = spr->ang&2047; // FIXME ? See DNE_BUG_HERE
cosang = sintable[(ang+512)&2047]; sinang = sintable[ang];
xspan = tilesizx[tilenum]; xrepeat = spr->xrepeat;
yspan = tilesizy[tilenum]; yrepeat = spr->yrepeat;
dax = ((xspan>>1)+xoff)*xrepeat; day = ((yspan>>1)+yoff)*yrepeat;
x1 += dmulscale16(sinang,dax,cosang,day)-intx;
y1 += dmulscale16(sinang,day,-cosang,dax)-inty;
l = xspan*xrepeat;
x2 = x1 - mulscale16(sinang,l);
y2 = y1 + mulscale16(cosang,l);
l = yspan*yrepeat;
k = -mulscale16(cosang,l); x3 = x2+k; x4 = x1+k;
k = -mulscale16(sinang,l); y3 = y2+k; y4 = y1+k;
clipyou = 0;
if ((y1^y2) < 0)
{
if ((x1^x2) < 0) clipyou ^= (x1*y2<x2*y1)^(y1<y2);
else if (x1 >= 0) clipyou ^= 1;
}
if ((y2^y3) < 0)
{
if ((x2^x3) < 0) clipyou ^= (x2*y3<x3*y2)^(y2<y3);
else if (x2 >= 0) clipyou ^= 1;
}
if ((y3^y4) < 0)
{
if ((x3^x4) < 0) clipyou ^= (x3*y4<x4*y3)^(y3<y4);
else if (x3 >= 0) clipyou ^= 1;
}
if ((y4^y1) < 0)
{
if ((x4^x1) < 0) clipyou ^= (x4*y1<x1*y4)^(y4<y1);
else if (x4 >= 0) clipyou ^= 1;
}
if (clipyou != 0)
{
hitinfo->hitsect = dasector; hitinfo->hitwall = -1; hitinfo->hitsprite = z;
hitinfo->pos.x = intx; hitinfo->pos.y = inty; hitinfo->pos.z = intz;
}
break;
}
}
}
while (++tempshortcnt < tempshortnum || clipspritecnt < clipspritenum);
#ifdef HAVE_CLIPSHAPE_FEATURE
if (curspr)
mapinfo_set(NULL, &origmapinfo);
#endif
#ifdef YAX_ENABLE
if (numyaxbunches == 0 || editstatus)
return 0;
if (hitinfo->hitsprite==-1 && hitinfo->hitwall==-1 && hitinfo->hitsect!=oldhitsect
&& hitinfo->hitsect != oldhitsect2) // 'ping-pong' infloop protection
{
if (hitinfo->hitsect == -1 && oldhitsect >= 0)
{
// this is bad: we didn't hit anything after going through a ceiling/floor
Bmemcpy(&hitinfo->pos, &newsv, sizeof(vec3_t));
hitinfo->hitsect = oldhitsect;
return 0;
}
// 1st, 2nd, ... ceil/floor hit
// hitinfo->hitsect is >=0 because if oldhitsect's init and check above
if (SECTORFLD(hitinfo->hitsect,stat, hitscan_hitsectcf)&yax_waltosecmask(dawalclipmask))
return 0;
i = yax_getneighborsect(hitinfo->pos.x, hitinfo->pos.y, hitinfo->hitsect,
hitscan_hitsectcf, NULL);
if (i >= 0)
{
Bmemcpy(&newsv, &hitinfo->pos, sizeof(vec3_t));
sectnum = i;
sv = &newsv;
oldhitsect2 = oldhitsect;
oldhitsect = hitinfo->hitsect;
hitinfo->hitsect = -1;
// sector-like sprite re-init:
curspr = 0;
curidx = -1;
tmpptr = NULL;
goto restart_grand;
}
}
#endif
return(0);
}
//
// neartag
//
int32_t neartag(int32_t xs, int32_t ys, int32_t zs, int16_t sectnum, int16_t ange, int16_t *neartagsector, int16_t *neartagwall,
int16_t *neartagsprite, int32_t *neartaghitdist, int32_t neartagrange, uint8_t tagsearch)
{
walltype *wal, *wal2;
spritetype *spr;
int32_t i, z, zz, xe, ye, ze, x1, y1, z1, x2, y2, intx, inty, intz;
int32_t topt, topu, bot, dist, offx, offy, vx, vy, vz;
int16_t tempshortcnt, tempshortnum, dasector, startwall, endwall;
int16_t nextsector, good;
*neartagsector = -1; *neartagwall = -1; *neartagsprite = -1;
*neartaghitdist = 0;
if (sectnum < 0 || (tagsearch & 3) == 0) return(0);
vx = mulscale14(sintable[(ange+2560)&2047],neartagrange); xe = xs+vx;
vy = mulscale14(sintable[(ange+2048)&2047],neartagrange); ye = ys+vy;
vz = 0; ze = 0;
clipsectorlist[0] = sectnum;
tempshortcnt = 0; tempshortnum = 1;
do
{
dasector = clipsectorlist[tempshortcnt];
startwall = sector[dasector].wallptr;
endwall = startwall + sector[dasector].wallnum - 1;
for (z=startwall,wal=&wall[startwall]; z<=endwall; z++,wal++)
{
wal2 = &wall[wal->point2];
x1 = wal->x; y1 = wal->y; x2 = wal2->x; y2 = wal2->y;
nextsector = wal->nextsector;
good = 0;
if (nextsector >= 0)
{
if ((tagsearch&1) && sector[nextsector].lotag) good |= 1;
if ((tagsearch&2) && sector[nextsector].hitag) good |= 1;
}
if ((tagsearch&1) && wal->lotag) good |= 2;
if ((tagsearch&2) && wal->hitag) good |= 2;
if ((good == 0) && (nextsector < 0)) continue;
if ((x1-xs)*(y2-ys) < (x2-xs)*(y1-ys)) continue;
if (lintersect(xs,ys,zs,xe,ye,ze,x1,y1,x2,y2,&intx,&inty,&intz) == 1)
{
if (good != 0)
{
if (good&1) *neartagsector = nextsector;
if (good&2) *neartagwall = z;
*neartaghitdist = dmulscale14(intx-xs,sintable[(ange+2560)&2047],inty-ys,sintable[(ange+2048)&2047]);
xe = intx; ye = inty; ze = intz;
}
if (nextsector >= 0)
{
for (zz=tempshortnum-1; zz>=0; zz--)
if (clipsectorlist[zz] == nextsector) break;
if (zz < 0) clipsectorlist[tempshortnum++] = nextsector;
}
}
}
tempshortcnt++;
if (tagsearch & 4) continue; // skip sprite search
for (z=headspritesect[dasector]; z>=0; z=nextspritesect[z])
{
spr = &sprite[z];
good = 0;
if ((tagsearch&1) && spr->lotag) good |= 1;
if ((tagsearch&2) && spr->hitag) good |= 1;
if (good != 0)
{
x1 = spr->x; y1 = spr->y; z1 = spr->z;
topt = vx*(x1-xs) + vy*(y1-ys);
if (topt > 0)
{
bot = vx*vx + vy*vy;
if (bot != 0)
{
intz = zs+scale(vz,topt,bot);
i = tilesizy[spr->picnum]*spr->yrepeat;
if (spr->cstat&128) z1 += (i<<1);
if (picanm[spr->picnum]&0x00ff0000) z1 -= ((int32_t)((int8_t)((picanm[spr->picnum]>>16)&255))*spr->yrepeat<<2);
if ((intz <= z1) && (intz >= z1-(i<<2)))
{
topu = vx*(y1-ys) - vy*(x1-xs);
offx = scale(vx,topu,bot);
offy = scale(vy,topu,bot);
dist = offx*offx + offy*offy;
i = (tilesizx[spr->picnum]*spr->xrepeat); i *= i;
if (dist <= (i>>7))
{
intx = xs + scale(vx,topt,bot);
inty = ys + scale(vy,topt,bot);
if (klabs(intx-xs)+klabs(inty-ys) < klabs(xe-xs)+klabs(ye-ys))
{
*neartagsprite = z;
*neartaghitdist = dmulscale14(intx-xs,sintable[(ange+2560)&2047],inty-ys,sintable[(ange+2048)&2047]);
xe = intx;
ye = inty;
ze = intz;
}
}
}
}
}
}
}
}
while (tempshortcnt < tempshortnum);
return(0);
}
//
// dragpoint
//
int32_t dragpoint_noreset = 0;
void dragpoint(int16_t pointhighlight, int32_t dax, int32_t day)
#ifdef YAX_ENABLE
{
int32_t thelastwall, cnt, w, tmpstartwall, clockwise;
int32_t i, j, numyaxwalls=0, tmpcf;
static int16_t yaxwalls[MAXWALLS];
uint8_t *walbitmap = (uint8_t *)tempbuf;
if (!dragpoint_noreset)
Bmemset(walbitmap, 0, (numwalls+7)>>3);
yaxwalls[numyaxwalls++] = pointhighlight;
for (i=0; i<numyaxwalls; i++)
{
w = yaxwalls[i];
tmpstartwall = w;
cnt = MAXWALLS;
clockwise = 0;
while (1)
{
wall[w].x = dax;
wall[w].y = day;
walbitmap[w>>3] |= (1<<(w&7));
for (YAX_ITER_WALLS(w, j, tmpcf))
{
if ((walbitmap[j>>3]&(1<<(j&7)))==0)
{
walbitmap[j>>3] |= (1<<(j&7));
yaxwalls[numyaxwalls++] = j;
}
}
if (!clockwise) //search points CCW
{
if (wall[w].nextwall >= 0)
w = wall[wall[w].nextwall].point2;
else
{
w = tmpstartwall;
clockwise = 1;
}
}
cnt--;
if (cnt==0)
{
initprintf("dragpoint %d: infloop!\n", pointhighlight);
i = numyaxwalls;
break;
}
if (clockwise)
{
thelastwall = lastwall(w);
if (wall[thelastwall].nextwall >= 0)
w = wall[thelastwall].nextwall;
else
break;
}
if ((walbitmap[w>>3] & (1<<(w&7))))
{
if (clockwise)
break;
w = tmpstartwall;
clockwise = 1;
continue;
}
}
}
if (editstatus)
{
for (w=0; w<numwalls; w++)
if (walbitmap[w>>3] & (1<<(w&7)))
wall[w].cstat |= (1<<14);
}
}
#else
{
int16_t cnt, tempshort;
int32_t thelastwall;
tempshort = pointhighlight; //search points CCW
cnt = MAXWALLS;
wall[tempshort].x = dax;
wall[tempshort].y = day;
if (editstatus)
{
wall[pointhighlight].cstat |= (1<<14);
if (linehighlight >= 0 && linehighlight < MAXWALLS)
wall[linehighlight].cstat |= (1<<14);
wall[lastwall(pointhighlight)].cstat |= (1<<14);
}
do
{
if (wall[tempshort].nextwall >= 0)
{
tempshort = wall[wall[tempshort].nextwall].point2;
wall[tempshort].x = dax;
wall[tempshort].y = day;
wall[tempshort].cstat |= (1<<14);
}
else
{
tempshort = pointhighlight; //search points CW if not searched all the way around
do
{
thelastwall = lastwall(tempshort);
if (wall[thelastwall].nextwall >= 0)
{
tempshort = wall[thelastwall].nextwall;
wall[tempshort].x = dax;
wall[tempshort].y = day;
wall[tempshort].cstat |= (1<<14);
}
else
{
break;
}
cnt--;
}
while ((tempshort != pointhighlight) && (cnt > 0));
break;
}
cnt--;
}
while ((tempshort != pointhighlight) && (cnt > 0));
}
#endif
//
// lastwall
//
int32_t lastwall(int16_t point)
{
int32_t i, j, cnt;
if ((point > 0) && (wall[point-1].point2 == point)) return(point-1);
i = point;
cnt = MAXWALLS;
do
{
j = wall[i].point2;
if (j == point) return(i);
i = j;
cnt--;
}
while (cnt > 0);
return(point);
}
////////// CLIPMOVE //////////
int32_t clipmoveboxtracenum = 3;
#ifdef HAVE_CLIPSHAPE_FEATURE
static int32_t clipsprite_try(const spritetype *spr, int32_t xmin, int32_t ymin, int32_t xmax, int32_t ymax)
{
int32_t i,k,tempint1,tempint2;
// try and see whether this sprite's picnum has sector-like clipping data
i = pictoidx[spr->picnum];
// handle sector-like floor sprites separately
while (i>=0 && (spr->cstat&32) != (clipmapinfo.sector[sectq[clipinfo[i].qbeg]].CM_CSTAT&32))
i = clipinfo[i].next;
if (i>=0)
{
int32_t maxcorrection = clipinfo[i].maxdist;
k = sectq[clipinfo[i].qbeg];
if ((spr->cstat&48)!=32) // face/wall sprite
{
tempint1 = clipmapinfo.sector[k].CM_XREPEAT;
maxcorrection = (maxcorrection * (int32_t)spr->xrepeat)/tempint1;
}
else // floor sprite
{
tempint1 = clipmapinfo.sector[k].CM_XREPEAT;
tempint2 = clipmapinfo.sector[k].CM_YREPEAT;
maxcorrection = max((maxcorrection * (int32_t)spr->xrepeat)/tempint1,
(maxcorrection * (int32_t)spr->yrepeat)/tempint2);
}
maxcorrection -= MAXCLIPDIST;
if (spr->x < xmin - maxcorrection) return 1;
if (spr->y < ymin - maxcorrection) return 1;
if (spr->x > xmax + maxcorrection) return 1;
if (spr->y > ymax + maxcorrection) return 1;
if (clipspritenum < MAXCLIPNUM)
clipspritelist[clipspritenum++] = spr-sprite;
//initprintf("%d: clip sprite[%d]\n",clipspritenum,j);
return 1;
}
return 0;
}
// return: -1 if curspr has x-flip xor y-flip (in the horizontal map plane!), 1 else
static int32_t clipsprite_initindex(int32_t curidx, spritetype *curspr, int32_t *clipsectcnt, const vec3_t *vect)
{
int32_t j,k,w,tempint1,tempint2,daz = curspr->z;
int32_t scalex,scaley,scalez,flipx,flipy,rotang, dorot;
int32_t startwall, endwall, flipmul=1;
sectortype *sec;
walltype *wal;
j = sectq[clipinfo[curidx].qbeg];
tempint1 = sector[j].CM_XREPEAT;
tempint2 = sector[j].CM_YREPEAT;
if ((curspr->cstat&48)!=32) // face/wall sprite
{
scalex = scaley = divscale22(curspr->xrepeat, tempint1);
scalez = divscale22(curspr->yrepeat, tempint2);
flipx = 1-((curspr->cstat&4)>>1);
flipy = 1;
}
else
{
scalex = divscale22(curspr->xrepeat, tempint1);
scaley = divscale22(curspr->yrepeat, tempint2);
scalez = scalex;
flipx = 1-((curspr->cstat&4)>>1);
flipy = 1-((curspr->cstat&8)>>2);
}
rotang = (curspr->ang - sector[j].CM_ANG)&2047;
dorot = !CM_NOROTS(j);
if (dorot)
{
flipmul = flipx*flipy;
if (flipmul==-1)
wall = loadwallinv;
}
if ((curspr->cstat&128) != (sector[j].CM_CSTAT&128))
daz += (((curspr->cstat&128)>>6)-1)*(((int32_t)tilesizy[curspr->picnum]*(int32_t)curspr->yrepeat)<<1);
*clipsectcnt = clipsectnum = 0;
// init sectors for this index
for (k=clipinfo[curidx].qbeg; k<=clipinfo[curidx].qend; k++)
{
j = sectq[k];
sec = &sector[j];
sec->floorz = daz + mulscale22(scalez, CM_FLOORZ(j));
sec->ceilingz = daz + mulscale22(scalez, CM_CEILINGZ(j));
//initprintf("sec %d: f=%d, c=%d\n", j, sec->floorz, sec->ceilingz);
startwall=sec->wallptr; endwall=startwall+sec->wallnum;
for (w=startwall,wal=&wall[startwall]; w<endwall; w++,wal++)
{
wal->x = mulscale22(scalex, CM_WALL_X(w));
wal->y = mulscale22(scaley, CM_WALL_Y(w));
if (dorot)
{
wal->x *= flipx;
wal->y *= flipy;
rotatepoint(0,0, wal->x,wal->y, rotang, &wal->x,&wal->y);
}
wal->x += curspr->x;
wal->y += curspr->y;
}
if (inside(vect->x, vect->y, j)==1)
clipsectorlist[clipsectnum++] = j;
}
// add outer sector if not inside inner ones
if (clipsectnum==0)
clipsectorlist[clipsectnum++] = sectq[k-1];
return flipmul;
}
#endif
static int32_t clipmove_warned=0;
static void addclipline(int32_t dax1, int32_t day1, int32_t dax2, int32_t day2, int32_t daoval)
{
if (clipnum < MAXCLIPNUM)
{
clipit[clipnum].x1 = dax1; clipit[clipnum].y1 = day1;
clipit[clipnum].x2 = dax2; clipit[clipnum].y2 = day2;
clipobjectval[clipnum] = daoval;
clipnum++;
}
else if (!clipmove_warned)
{
initprintf("!!clipnum\n");
clipmove_warned = 1;
}
}
//
// clipmove
//
int32_t clipmove(vec3_t *pos, int16_t *sectnum,
int32_t xvect, int32_t yvect,
int32_t walldist, int32_t ceildist, int32_t flordist, uint32_t cliptype)
{
walltype *wal, *wal2;
spritetype *spr;
sectortype *sec, *sec2;
int32_t i, j, tempint1, tempint2;
int32_t oxvect, oyvect, goalx, goaly, intx, inty, lx, ly, retval;
int32_t k, l, clipsectcnt, startwall, endwall, cstat, dasect;
int32_t x1, y1, x2, y2, cx, cy, rad, xmin, ymin, xmax, ymax, daz, daz2;
int32_t bsz, dax, day, xoff, yoff, xspan, yspan, cosang, sinang, tilenum;
int32_t xrepeat, yrepeat, gx, gy, dx, dy, dasprclipmask, dawalclipmask;
int32_t hitwall, cnt, clipyou;
spritetype *curspr=NULL; // non-NULL when handling sprite with sector-like clipping
int32_t curidx=-1, clipspritecnt;
if (((xvect|yvect) == 0) || (*sectnum < 0)) return(0);
retval = 0;
clipmove_warned = 0;
oxvect = xvect;
oyvect = yvect;
goalx = pos->x + (xvect>>14);
goaly = pos->y + (yvect>>14);
clipnum = 0;
cx = (pos->x+goalx)>>1;
cy = (pos->y+goaly)>>1;
//Extra walldist for sprites on sector lines
gx = goalx-(pos->x); gy = goaly-(pos->y);
rad = nsqrtasm(gx*gx + gy*gy) + MAXCLIPDIST+walldist + 8;
xmin = cx-rad; ymin = cy-rad;
xmax = cx+rad; ymax = cy+rad;
dawalclipmask = (cliptype&65535); //CLIPMASK0 = 0x00010001
dasprclipmask = (cliptype>>16); //CLIPMASK1 = 0x01000040
clipsectorlist[0] = (*sectnum);
clipsectcnt = 0; clipsectnum = 1;
clipspritecnt = 0; clipspritenum = 0;
do
{
#ifdef HAVE_CLIPSHAPE_FEATURE
if (clipsectcnt>=clipsectnum)
{
// one bunch of sectors completed (either the very first
// one or a sector-like sprite one), prepare the next
//initprintf("init sprite %d\n", clipspritecnt);
if (!curspr)
{
// init sector-like sprites for clipping
origclipsectnum = clipsectnum;
Bmemcpy(origclipsectorlist, clipsectorlist, clipsectnum*sizeof(clipsectorlist[0]));
// replace sector and wall with clip map
mapinfo_set(&origmapinfo, &clipmapinfo);
}
curspr = &sprite[clipspritelist[clipspritecnt]];
if (curidx < 0) // per-sprite init
curidx = pictoidx[curspr->picnum];
else
curidx = clipinfo[curidx].next;
while (curidx>=0 && (curspr->cstat&32) != (sector[sectq[clipinfo[curidx].qbeg]].CM_CSTAT&32))
curidx = clipinfo[curidx].next;
if (curidx < 0)
{
clipspritecnt++;
continue;
}
clipsprite_initindex(curidx, curspr, &clipsectcnt, pos);
}
#endif
dasect = clipsectorlist[clipsectcnt++];
//if (curspr)
// initprintf("sprite %d/%d: sect %d/%d (%d)\n", clipspritecnt,clipspritenum, clipsectcnt,clipsectnum,dasect);
sec = &sector[dasect];
startwall = sec->wallptr; endwall = startwall + sec->wallnum;
for (j=startwall,wal=&wall[startwall]; j<endwall; j++,wal++)
{
wal2 = &wall[wal->point2];
if ((wal->x < xmin) && (wal2->x < xmin)) continue;
if ((wal->x > xmax) && (wal2->x > xmax)) continue;
if ((wal->y < ymin) && (wal2->y < ymin)) continue;
if ((wal->y > ymax) && (wal2->y > ymax)) continue;
x1 = wal->x; y1 = wal->y; x2 = wal2->x; y2 = wal2->y;
dx = x2-x1; dy = y2-y1;
if (dx*((pos->y)-y1) < ((pos->x)-x1)*dy) continue; //If wall's not facing you
if (dx > 0) dax = dx*(ymin-y1); else dax = dx*(ymax-y1);
if (dy > 0) day = dy*(xmax-x1); else day = dy*(xmin-x1);
if (dax >= day) continue;
clipyou = 0;
#ifdef HAVE_CLIPSHAPE_FEATURE
if (curspr)
{
if (wal->nextsector>=0)
{
int32_t basez;
if (rintersect(pos->x,pos->y,0, gx,gy,0, x1,y1, x2,y2, &dax,&day,&daz) == 0)
dax = pos->x, day = pos->y;
daz = getflorzofslope(dasect, dax,day);
daz2 = getflorzofslope(wal->nextsector, dax,day);
basez = getflorzofslope(sectq[clipinfo[curidx].qend], dax,day);
sec2 = &sector[wal->nextsector];
if ((sec2->floorstat&1) == 0)
// if (dasect==sectq[clipinfo[curidx].qend] || daz2 < daz-(1<<8))
if (daz2-(flordist-1) <= pos->z && pos->z <= basez+(flordist-1))
clipyou = 1;
if (clipyou == 0)
{
daz = getceilzofslope(dasect, dax,day);
daz2 = getceilzofslope(wal->nextsector, dax,day);
basez = getceilzofslope(sectq[clipinfo[curidx].qend], dax,day);
if ((sec2->ceilingstat&1) == 0)
// if (dasect==sectq[clipinfo[curidx].qend] || daz2 > daz+(1<<8))
if (basez-(ceildist-1) <= pos->z && pos->z <= daz2+(ceildist-1))
clipyou = 1;
}
}
}
else
#endif
if ((wal->nextsector < 0) || (wal->cstat&dawalclipmask)) clipyou = 1;
else if (editstatus == 0)
{
if (rintersect(pos->x,pos->y,0,gx,gy,0,x1,y1,x2,y2,&dax,&day,&daz) == 0)
dax = pos->x, day = pos->y;
daz = getflorzofslope(dasect, dax,day);
daz2 = getflorzofslope(wal->nextsector, dax,day);
sec2 = &sector[wal->nextsector];
if (daz2 < daz-(1<<8))
if ((sec2->floorstat&1) == 0)
if ((pos->z) >= daz2-(flordist-1)) clipyou = 1;
if (clipyou == 0)
{
daz = getceilzofslope(dasect, dax,day);
daz2 = getceilzofslope(wal->nextsector, dax,day);
if (daz2 > daz+(1<<8))
if ((sec2->ceilingstat&1) == 0)
if ((pos->z) <= daz2+(ceildist-1)) clipyou = 1;
}
}
if (clipyou)
{
int16_t objtype;
if (!curspr)
objtype = (int16_t)j+32768;
else
objtype = (int16_t)(curspr-sprite)+49152;
//Add 2 boxes at endpoints
bsz = walldist; if (gx < 0) bsz = -bsz;
addclipline(x1-bsz,y1-bsz, x1-bsz,y1+bsz, objtype);
addclipline(x2-bsz,y2-bsz, x2-bsz,y2+bsz, objtype);
bsz = walldist; if (gy < 0) bsz = -bsz;
addclipline(x1+bsz,y1-bsz, x1-bsz,y1-bsz, objtype);
addclipline(x2+bsz,y2-bsz, x2-bsz,y2-bsz, objtype);
dax = walldist; if (dy > 0) dax = -dax;
day = walldist; if (dx < 0) day = -day;
addclipline(x1+dax,y1+day, x2+dax,y2+day, objtype);
}
else if (wal->nextsector>=0)
{
for (i=clipsectnum-1; i>=0; i--)
if (wal->nextsector == clipsectorlist[i]) break;
if (i < 0) clipsectorlist[clipsectnum++] = wal->nextsector;
}
}
#ifdef HAVE_CLIPSHAPE_FEATURE
if (curspr)
continue; // next sector of this index
#endif
if (!dasprclipmask)
continue;
for (j=headspritesect[dasect]; j>=0; j=nextspritesect[j])
{
spr = &sprite[j];
cstat = spr->cstat;
if ((cstat&dasprclipmask) == 0) continue;
#ifdef HAVE_CLIPSHAPE_FEATURE
if (clipsprite_try(spr, xmin,ymin, xmax,ymax))
continue;
#endif
x1 = spr->x; y1 = spr->y;
switch (cstat&48)
{
case 0:
if ((x1 >= xmin) && (x1 <= xmax) && (y1 >= ymin) && (y1 <= ymax))
{
k = ((tilesizy[spr->picnum]*spr->yrepeat)<<2);
if (cstat&128) daz = spr->z+(k>>1); else daz = spr->z;
if (picanm[spr->picnum]&0x00ff0000) daz -= ((int32_t)((int8_t)((picanm[spr->picnum]>>16)&255))*spr->yrepeat<<2);
if (((pos->z) < daz+ceildist) && ((pos->z) > daz-k-flordist))
{
bsz = (spr->clipdist<<2)+walldist; if (gx < 0) bsz = -bsz;
addclipline(x1-bsz,y1-bsz,x1-bsz,y1+bsz,(int16_t)j+49152);
bsz = (spr->clipdist<<2)+walldist; if (gy < 0) bsz = -bsz;
addclipline(x1+bsz,y1-bsz,x1-bsz,y1-bsz,(int16_t)j+49152);
}
}
break;
case 16:
k = ((tilesizy[spr->picnum]*spr->yrepeat)<<2);
if (cstat&128) daz = spr->z+(k>>1); else daz = spr->z;
if (picanm[spr->picnum]&0x00ff0000) daz -= ((int32_t)((int8_t)((picanm[spr->picnum]>>16)&255))*spr->yrepeat<<2);
daz2 = daz-k;
daz += ceildist; daz2 -= flordist;
if (((pos->z) < daz) && ((pos->z) > daz2))
{
//These lines get the 2 points of the rotated sprite
//Given: (x1, y1) starts out as the center point
tilenum = spr->picnum;
xoff = (int32_t)((int8_t)((picanm[tilenum]>>8)&255))+((int32_t)spr->xoffset);
if ((cstat&4) > 0) xoff = -xoff;
k = spr->ang; l = spr->xrepeat;
dax = sintable[k&2047]*l; day = sintable[(k+1536)&2047]*l;
l = tilesizx[tilenum]; k = (l>>1)+xoff;
x1 -= mulscale16(dax,k); x2 = x1+mulscale16(dax,l);
y1 -= mulscale16(day,k); y2 = y1+mulscale16(day,l);
if (clipinsideboxline(cx,cy,x1,y1,x2,y2,rad) != 0)
{
dax = mulscale14(sintable[(spr->ang+256+512)&2047],walldist);
day = mulscale14(sintable[(spr->ang+256)&2047],walldist);
if ((x1-(pos->x))*(y2-(pos->y)) >= (x2-(pos->x))*(y1-(pos->y))) //Front
{
addclipline(x1+dax,y1+day,x2+day,y2-dax,(int16_t)j+49152);
}
else
{
if ((cstat&64) != 0) continue;
addclipline(x2-dax,y2-day,x1-day,y1+dax,(int16_t)j+49152);
}
//Side blocker
if ((x2-x1)*((pos->x)-x1) + (y2-y1)*((pos->y)-y1) < 0)
addclipline(x1-day,y1+dax,x1+dax,y1+day,(int16_t)j+49152);
else if ((x1-x2)*((pos->x)-x2) + (y1-y2)*((pos->y)-y2) < 0)
addclipline(x2+day,y2-dax,x2-dax,y2-day,(int16_t)j+49152);
}
}
break;
case 32:
daz = spr->z+ceildist;
daz2 = spr->z-flordist;
if (((pos->z) < daz) && ((pos->z) > daz2))
{
if ((cstat&64) != 0)
if (((pos->z) > spr->z) == ((cstat&8)==0)) continue;
tilenum = spr->picnum;
xoff = (int32_t)((int8_t)((picanm[tilenum]>>8)&255))+((int32_t)spr->xoffset);
yoff = (int32_t)((int8_t)((picanm[tilenum]>>16)&255))+((int32_t)spr->yoffset);
if ((cstat&4) > 0) xoff = -xoff;
if ((cstat&8) > 0) yoff = -yoff;
k = spr->ang&2047; // FIXME ? See DNE_BUG_HERE
cosang = sintable[(k+512)&2047]; sinang = sintable[k];
xspan = tilesizx[tilenum]; xrepeat = spr->xrepeat;
yspan = tilesizy[tilenum]; yrepeat = spr->yrepeat;
dax = ((xspan>>1)+xoff)*xrepeat; day = ((yspan>>1)+yoff)*yrepeat;
rxi[0] = x1 + dmulscale16(sinang,dax,cosang,day);
ryi[0] = y1 + dmulscale16(sinang,day,-cosang,dax);
l = xspan*xrepeat;
rxi[1] = rxi[0] - mulscale16(sinang,l);
ryi[1] = ryi[0] + mulscale16(cosang,l);
l = yspan*yrepeat;
k = -mulscale16(cosang,l); rxi[2] = rxi[1]+k; rxi[3] = rxi[0]+k;
k = -mulscale16(sinang,l); ryi[2] = ryi[1]+k; ryi[3] = ryi[0]+k;
dax = mulscale14(sintable[(spr->ang-256+512)&2047],walldist);
day = mulscale14(sintable[(spr->ang-256)&2047],walldist);
if ((rxi[0]-(pos->x))*(ryi[1]-(pos->y)) < (rxi[1]-(pos->x))*(ryi[0]-(pos->y)))
{
if (clipinsideboxline(cx,cy,rxi[1],ryi[1],rxi[0],ryi[0],rad) != 0)
addclipline(rxi[1]-day,ryi[1]+dax,rxi[0]+dax,ryi[0]+day,(int16_t)j+49152);
}
else if ((rxi[2]-(pos->x))*(ryi[3]-(pos->y)) < (rxi[3]-(pos->x))*(ryi[2]-(pos->y)))
{
if (clipinsideboxline(cx,cy,rxi[3],ryi[3],rxi[2],ryi[2],rad) != 0)
addclipline(rxi[3]+day,ryi[3]-dax,rxi[2]-dax,ryi[2]-day,(int16_t)j+49152);
}
if ((rxi[1]-(pos->x))*(ryi[2]-(pos->y)) < (rxi[2]-(pos->x))*(ryi[1]-(pos->y)))
{
if (clipinsideboxline(cx,cy,rxi[2],ryi[2],rxi[1],ryi[1],rad) != 0)
addclipline(rxi[2]-dax,ryi[2]-day,rxi[1]-day,ryi[1]+dax,(int16_t)j+49152);
}
else if ((rxi[3]-(pos->x))*(ryi[0]-(pos->y)) < (rxi[0]-(pos->x))*(ryi[3]-(pos->y)))
{
if (clipinsideboxline(cx,cy,rxi[0],ryi[0],rxi[3],ryi[3],rad) != 0)
addclipline(rxi[0]+dax,ryi[0]+day,rxi[3]+day,ryi[3]-dax,(int16_t)j+49152);
}
}
break;
}
}
}
while (clipsectcnt < clipsectnum || clipspritecnt < clipspritenum);
#ifdef HAVE_CLIPSHAPE_FEATURE
if (curspr)
{
// restore original map
mapinfo_set(NULL, &origmapinfo);
clipsectnum = origclipsectnum;
Bmemcpy(clipsectorlist, origclipsectorlist, clipsectnum*sizeof(clipsectorlist[0]));
}
#endif
hitwall = 0;
cnt = clipmoveboxtracenum;
do
{
intx = goalx; inty = goaly;
hitwall = raytrace(pos->x, pos->y, &intx, &inty);
if (hitwall >= 0)
{
uint64_t tempull;
lx = clipit[hitwall].x2-clipit[hitwall].x1;
ly = clipit[hitwall].y2-clipit[hitwall].y1;
tempull = (int64_t)lx*(int64_t)lx + (int64_t)ly*(int64_t)ly;
if (tempull > 0 && tempull < INT32_MAX)
{
tempint2 = (int32_t)tempull;
tempint1 = (goalx-intx)*lx + (goaly-inty)*ly;
if ((klabs(tempint1)>>11) < tempint2)
i = divscale20(tempint1,tempint2);
else
i = 0;
goalx = mulscale20(lx,i)+intx;
goaly = mulscale20(ly,i)+inty;
}
tempint1 = dmulscale6(lx,oxvect,ly,oyvect);
for (i=cnt+1; i<=clipmoveboxtracenum; i++)
{
j = hitwalls[i];
tempint2 = dmulscale6(clipit[j].x2-clipit[j].x1,oxvect,clipit[j].y2-clipit[j].y1,oyvect);
if ((tempint1^tempint2) < 0)
{
updatesector(pos->x,pos->y,sectnum);
return(retval);
}
}
keepaway(&goalx, &goaly, hitwall);
xvect = ((goalx-intx)<<14);
yvect = ((goaly-inty)<<14);
if (cnt == clipmoveboxtracenum) retval = clipobjectval[hitwall];
hitwalls[cnt] = hitwall;
}
cnt--;
pos->x = intx;
pos->y = inty;
}
while (((xvect|yvect) != 0) && (hitwall >= 0) && (cnt > 0));
for (j=0; j<clipsectnum; j++)
if (inside(pos->x,pos->y,clipsectorlist[j]) == 1)
{
*sectnum = clipsectorlist[j];
return(retval);
}
*sectnum = -1; tempint1 = INT32_MAX;
for (j=numsectors-1; j>=0; j--)
if (inside(pos->x,pos->y,j) == 1)
{
if (sector[j].ceilingstat&2)
tempint2 = (getceilzofslope((int16_t)j,pos->x,pos->y)-(pos->z));
else
tempint2 = (sector[j].ceilingz-(pos->z));
if (tempint2 > 0)
{
if (tempint2 < tempint1)
{ *sectnum = j; tempint1 = tempint2; }
}
else
{
if (sector[j].floorstat&2)
tempint2 = ((pos->z)-getflorzofslope((int16_t)j,pos->x,pos->y));
else
tempint2 = ((pos->z)-sector[j].floorz);
if (tempint2 <= 0)
{
*sectnum = j;
return(retval);
}
if (tempint2 < tempint1)
{ *sectnum = j; tempint1 = tempint2; }
}
}
return(retval);
}
//
// pushmove
//
int32_t pushmove(vec3_t *vect, int16_t *sectnum,
int32_t walldist, int32_t ceildist, int32_t flordist, uint32_t cliptype)
{
sectortype *sec, *sec2;
walltype *wal;
int32_t i, j, k, t, dx, dy, dax, day, daz, daz2, bad, dir;
int32_t /*dasprclipmask,*/ dawalclipmask;
int16_t startwall, endwall, clipsectcnt;
char bad2;
if ((*sectnum) < 0) return(-1);
dawalclipmask = (cliptype&65535);
// dasprclipmask = (cliptype>>16);
k = 32;
dir = 1;
do
{
bad = 0;
clipsectorlist[0] = *sectnum;
clipsectcnt = 0; clipsectnum = 1;
do
{
/*Push FACE sprites
for(i=headspritesect[clipsectorlist[clipsectcnt]];i>=0;i=nextspritesect[i])
{
spr = &sprite[i];
if (((spr->cstat&48) != 0) && ((spr->cstat&48) != 48)) continue;
if ((spr->cstat&dasprclipmask) == 0) continue;
dax = (vect->x)-spr->x; day = (vect->y)-spr->y;
t = (spr->clipdist<<2)+walldist;
if ((klabs(dax) < t) && (klabs(day) < t))
{
t = ((tilesizy[spr->picnum]*spr->yrepeat)<<2);
if (spr->cstat&128) daz = spr->z+(t>>1); else daz = spr->z;
if (picanm[spr->picnum]&0x00ff0000) daz -= ((int32_t)((int8_t)((picanm[spr->picnum]>>16)&255))*spr->yrepeat<<2);
if (((vect->z) < daz+ceildist) && ((vect->z) > daz-t-flordist))
{
t = (spr->clipdist<<2)+walldist;
j = getangle(dax,day);
dx = (sintable[(j+512)&2047]>>11);
dy = (sintable[(j)&2047]>>11);
bad2 = 16;
do
{
vect->x = (vect->x) + dx; vect->y = (vect->y) + dy;
bad2--; if (bad2 == 0) break;
} while ((klabs((vect->x)-spr->x) < t) && (klabs((vect->y)-spr->y) < t));
bad = -1;
k--; if (k <= 0) return(bad);
updatesector(vect->x,vect->y,sectnum);
}
}
}*/
sec = &sector[clipsectorlist[clipsectcnt]];
if (dir > 0)
startwall = sec->wallptr, endwall = startwall + sec->wallnum;
else
endwall = sec->wallptr, startwall = endwall + sec->wallnum;
for (i=startwall,wal=&wall[startwall]; i!=endwall; i+=dir,wal+=dir)
if (clipinsidebox(vect->x,vect->y,i,walldist-4) == 1)
{
j = 0;
if (wal->nextsector < 0) j = 1;
if (wal->cstat&dawalclipmask) j = 1;
if (j == 0)
{
sec2 = &sector[wal->nextsector];
//Find closest point on wall (dax, day) to (vect->x, vect->y)
dax = wall[wal->point2].x-wal->x;
day = wall[wal->point2].y-wal->y;
daz = dax*((vect->x)-wal->x) + day*((vect->y)-wal->y);
if (daz <= 0)
t = 0;
else
{
daz2 = dax*dax+day*day;
if (daz >= daz2) t = (1<<30); else t = divscale30(daz,daz2);
}
dax = wal->x + mulscale30(dax,t);
day = wal->y + mulscale30(day,t);
daz = getflorzofslope(clipsectorlist[clipsectcnt],dax,day);
daz2 = getflorzofslope(wal->nextsector,dax,day);
if ((daz2 < daz-(1<<8)) && ((sec2->floorstat&1) == 0))
if (vect->z >= daz2-(flordist-1)) j = 1;
daz = getceilzofslope(clipsectorlist[clipsectcnt],dax,day);
daz2 = getceilzofslope(wal->nextsector,dax,day);
if ((daz2 > daz+(1<<8)) && ((sec2->ceilingstat&1) == 0))
if (vect->z <= daz2+(ceildist-1)) j = 1;
}
if (j != 0)
{
j = getangle(wall[wal->point2].x-wal->x,wall[wal->point2].y-wal->y);
dx = (sintable[(j+1024)&2047]>>11);
dy = (sintable[(j+512)&2047]>>11);
bad2 = 16;
do
{
vect->x = (vect->x) + dx; vect->y = (vect->y) + dy;
bad2--; if (bad2 == 0) break;
}
while (clipinsidebox(vect->x,vect->y,i,walldist-4) != 0);
bad = -1;
k--; if (k <= 0) return(bad);
updatesector(vect->x,vect->y,sectnum);
if (*sectnum < 0) return -1;
}
else
{
for (j=clipsectnum-1; j>=0; j--)
if (wal->nextsector == clipsectorlist[j]) break;
if (j < 0) clipsectorlist[clipsectnum++] = wal->nextsector;
}
}
clipsectcnt++;
}
while (clipsectcnt < clipsectnum);
dir = -dir;
}
while (bad != 0);
return(bad);
}
// breadth-first search helpers
void bfirst_search_init(int16_t *list, uint8_t *bitmap, int32_t *eltnumptr, int32_t maxnum, int16_t firstelt)
{
Bmemset(bitmap, 0, (maxnum+7)>>3);
list[0] = firstelt;
bitmap[firstelt>>3] |= (1<<(firstelt&7));
*eltnumptr = 1;
}
void bfirst_search_try(int16_t *list, uint8_t *bitmap, int32_t *eltnumptr, int16_t elt)
{
if (elt < 0)
return;
if ((bitmap[elt>>3]&(1<<(elt&7)))==0)
{
bitmap[elt>>3] |= (1<<(elt&7));
list[*eltnumptr] = elt;
(*eltnumptr)++;
}
}
//
// updatesector[z]
//
void updatesector(int32_t x, int32_t y, int16_t *sectnum)
{
walltype *wal;
int32_t i, j;
if (inside(x,y,*sectnum) == 1) return;
if ((*sectnum >= 0) && (*sectnum < numsectors))
{
wal = &wall[sector[*sectnum].wallptr];
j = sector[*sectnum].wallnum;
do
{
i = wal->nextsector;
if (i >= 0)
if (inside(x,y,(int16_t)i) == 1)
{
*sectnum = i;
return;
}
wal++;
j--;
}
while (j != 0);
}
for (i=numsectors-1; i>=0; i--)
if (inside(x,y,(int16_t)i) == 1)
{
*sectnum = i;
return;
}
*sectnum = -1;
}
void updatesector_onlynextwalls(int32_t x, int32_t y, int16_t *sectnum)
{
static int16_t sectlist[MAXSECTORS];
static uint8_t sectbitmap[MAXSECTORS>>3];
int32_t nsecs, sectcnt, j;
if ((unsigned)(*sectnum) >= (unsigned)numsectors)
return;
bfirst_search_init(sectlist, sectbitmap, &nsecs, numsectors, *sectnum);
for (sectcnt=0; sectcnt<nsecs; sectcnt++)
{
const sectortype *sec = &sector[sectlist[sectcnt]];
int32_t startwall = sec->wallptr;
int32_t endwall = sec->wallptr + sec->wallnum;
if (inside(x,y, sectlist[sectcnt]) == 1)
{
*sectnum = sectlist[sectcnt];
return;
}
for (j=startwall; j<endwall; j++)
{
if (wall[j].nextsector >= 0)
bfirst_search_try(sectlist, sectbitmap, &nsecs, wall[j].nextsector);
}
}
*sectnum = -1;
}
void updatesectorexclude(int32_t x, int32_t y, int16_t *sectnum, const uint8_t *excludesectbitmap)
{
walltype *wal;
int32_t i, j;
if (*sectnum>=0 && !(excludesectbitmap[*sectnum>>3]&(1<<(*sectnum&7))) && inside(x,y,*sectnum) == 1)
return;
if ((*sectnum >= 0) && (*sectnum < numsectors))
{
wal = &wall[sector[*sectnum].wallptr];
j = sector[*sectnum].wallnum;
do
{
i = wal->nextsector;
if (i >= 0)
if (!(excludesectbitmap[i>>3]&(1<<(i&7))) && inside(x,y,(int16_t)i) == 1)
{
*sectnum = i;
return;
}
wal++;
j--;
}
while (j != 0);
}
for (i=numsectors-1; i>=0; i--)
if (!(excludesectbitmap[i>>3]&(1<<(i&7))) && inside(x,y,(int16_t)i) == 1)
{
*sectnum = i;
return;
}
*sectnum = -1;
}
// new: if *sectnum >= MAXSECTORS, *sectnum-=MAXSECTORS is considered instead
// as starting sector and the 'initial' z check is skipped
// (not initial anymore because it follows the sector updating due to TROR)
void updatesectorz(int32_t x, int32_t y, int32_t z, int16_t *sectnum)
{
walltype *wal;
int32_t i, j, cz, fz;
if ((uint32_t)(*sectnum) < 2*MAXSECTORS)
{
int32_t nofirstzcheck = 0;
if (*sectnum >= MAXSECTORS)
{
*sectnum -= MAXSECTORS;
nofirstzcheck = 1;
}
// this block used to be outside the "if" and caused crashes in Polymost Mapster32
getzsofslope(*sectnum, x, y, &cz, &fz);
#ifdef YAX_ENABLE
if (z < cz)
{
i = yax_getneighborsect(x, y, *sectnum, YAX_CEILING, NULL);
if (i >= 0 && z >= getceilzofslope(i, x, y))
{ *sectnum = i; return; }
}
if (z > fz)
{
i = yax_getneighborsect(x, y, *sectnum, YAX_FLOOR, NULL);
if (i >= 0 && z <= getflorzofslope(i, x, y))
{ *sectnum = i; return; }
}
#endif
if (nofirstzcheck || ((z >= cz) && (z <= fz)))
if (inside(x,y,*sectnum) != 0) return;
wal = &wall[sector[*sectnum].wallptr];
j = sector[*sectnum].wallnum;
do
{
i = wal->nextsector;
if (i >= 0)
{
// YAX: TODO: check neighboring sectors here too?
getzsofslope(i, x, y, &cz, &fz);
if ((z >= cz) && (z <= fz))
if (inside(x,y,(int16_t)i) == 1)
{ *sectnum = i; return; }
}
wal++; j--;
}
while (j != 0);
}
for (i=numsectors-1; i>=0; i--)
{
getzsofslope(i, x, y, &cz, &fz);
if ((z >= cz) && (z <= fz))
if (inside(x,y,(int16_t)i) == 1)
{ *sectnum = i; return; }
}
*sectnum = -1;
}
//
// rotatepoint
//
void rotatepoint(int32_t xpivot, int32_t ypivot, int32_t x, int32_t y, int16_t daang, int32_t *x2, int32_t *y2)
{
int32_t dacos, dasin;
dacos = sintable[(daang+2560)&2047];
dasin = sintable[(daang+2048)&2047];
x -= xpivot;
y -= ypivot;
*x2 = dmulscale14(x,dacos,-y,dasin) + xpivot;
*y2 = dmulscale14(y,dacos,x,dasin) + ypivot;
}
//
// getmousevalues
//
void getmousevalues(int32_t *mousx, int32_t *mousy, int32_t *bstatus)
{
readmousexy(mousx,mousy);
readmousebstatus(bstatus);
}
#if KRANDDEBUG
# include <execinfo.h>
# define KRD_MAXCALLS 262144
# define KRD_DEPTH 8
static int32_t krd_numcalls=0;
static void *krd_fromwhere[KRD_MAXCALLS][KRD_DEPTH];
static int32_t krd_enabled=0;
void krd_enable(int which) // 0: disable, 1: rec, 2: play
{
krd_enabled = which;
if (which)
Bmemset(krd_fromwhere, 0, sizeof(krd_fromwhere));
}
int32_t krd_print(const char *filename)
{
FILE *fp;
int32_t i, j;
if (!krd_enabled) return 1;
krd_enabled = 0;
fp = fopen(filename, "wb");
if (!fp) { OSD_Printf("krd_print (2): fopen"); return 1; }
for (i=0; i<krd_numcalls; i++)
{
for (j=1;; j++) // skip self entry
{
if (j>=KRD_DEPTH || krd_fromwhere[i][j]==NULL)
{
fprintf(fp, "\n");
break;
}
fprintf(fp, " [%p]", krd_fromwhere[i][j]);
}
}
krd_numcalls = 0;
fclose(fp);
return 0;
}
#endif // KRANDDEBUG
//
// krand
//
int32_t krand(void)
{
// randomseed = (randomseed*27584621)+1;
randomseed = (randomseed * 1664525ul) + 221297ul;
#if KRANDDEBUG
if (krd_enabled)
if (krd_numcalls < KRD_MAXCALLS)
{
backtrace(krd_fromwhere[krd_numcalls], KRD_DEPTH);
krd_numcalls++;
}
#endif
return(((uint32_t)randomseed)>>16);
}
//
// getzrange
//
void getzrange(const vec3_t *pos, int16_t sectnum,
int32_t *ceilz, int32_t *ceilhit, int32_t *florz, int32_t *florhit,
int32_t walldist, uint32_t cliptype)
{
sectortype *sec;
walltype *wal, *wal2;
spritetype *spr;
int32_t clipsectcnt, startwall, endwall, tilenum, xoff, yoff, dax, day;
int32_t xmin, ymin, xmax, ymax, i, j, k, l, daz, daz2, dx, dy;
int32_t x1, y1, x2, y2, x3, y3, x4, y4, ang, cosang, sinang;
int32_t xspan, yspan, xrepeat, yrepeat, dasprclipmask, dawalclipmask;
int16_t cstat;
char clipyou;
#ifdef YAX_ENABLE
// YAX round, -1:center, 0:ceiling, 1:floor
int32_t mcf=-1;
#endif
spritetype *curspr=NULL; // non-NULL when handling sprite with sector-like clipping
int32_t curidx=-1, clipspritecnt;
if (sectnum < 0)
{
*ceilz = INT32_MIN; *ceilhit = -1;
*florz = INT32_MAX; *florhit = -1;
return;
}
//Extra walldist for sprites on sector lines
i = walldist+MAXCLIPDIST+1;
xmin = pos->x-i; ymin = pos->y-i;
xmax = pos->x+i; ymax = pos->y+i;
getzsofslope(sectnum,pos->x,pos->y,ceilz,florz);
*ceilhit = sectnum+16384; *florhit = sectnum+16384;
dawalclipmask = (cliptype&65535);
dasprclipmask = (cliptype>>16);
#ifdef YAX_ENABLE
origclipsectorlist[0] = sectnum;
origclipsectnum = 1;
#endif
clipsectorlist[0] = sectnum;
clipsectcnt = 0; clipsectnum = 1;
clipspritecnt = clipspritenum = 0;
#ifdef HAVE_CLIPSHAPE_FEATURE
if (0)
{
beginagain:
// replace sector and wall with clip map
mapinfo_set(&origmapinfo, &clipmapinfo);
clipsectcnt = clipsectnum; // should be a nop, "safety"...
}
#endif
#ifdef YAX_ENABLE
restart_grand:
#endif
do //Collect sectors inside your square first
{
#ifdef HAVE_CLIPSHAPE_FEATURE
if (clipsectcnt>=clipsectnum)
{
// one set of clip-sprite sectors completed, prepare the next
curspr = &sprite[clipspritelist[clipspritecnt]];
if (curidx < 0) // per-sprite init
curidx = pictoidx[curspr->picnum];
else
curidx = clipinfo[curidx].next;
while (curidx>=0 && (curspr->cstat&32) != (sector[sectq[clipinfo[curidx].qbeg]].CM_CSTAT&32))
curidx = clipinfo[curidx].next;
if (curidx < 0)
{
// didn't find matching clipping sectors for sprite
clipspritecnt++;
continue;
}
clipsprite_initindex(curidx, curspr, &clipsectcnt, pos);
for (i=0; i<clipsectnum; i++)
{
int32_t fz,cz, hitwhat;
k = clipsectorlist[i];
if (k==sectq[clipinfo[curidx].qend])
continue;
getzsofslope((int16_t)k,pos->x,pos->y,&daz,&daz2);
getzsofslope(sectq[clipinfo[curidx].qend],pos->x,pos->y,&cz,&fz);
hitwhat = (curspr-sprite)+49152;
if ((sector[k].ceilingstat&1)==0)
{
if (pos->z < cz && cz < *florz) { *florz = cz; *florhit = hitwhat; }
if (pos->z > daz && daz > *ceilz) { *ceilz = daz; *ceilhit = hitwhat; }
}
if ((sector[k].floorstat&1)==0)
{
if (pos->z < daz2 && daz2 < *florz) { *florz = daz2; *florhit = hitwhat; }
if (pos->z > fz && fz > *ceilz) { *ceilz = fz; *ceilhit = hitwhat; }
}
}
}
#endif
sec = &sector[clipsectorlist[clipsectcnt]];
startwall = sec->wallptr; endwall = startwall + sec->wallnum;
for (j=startwall,wal=&wall[startwall]; j<endwall; j++,wal++)
{
k = wal->nextsector;
if (k >= 0)
{
wal2 = &wall[wal->point2];
x1 = wal->x; x2 = wal2->x;
if ((x1 < xmin) && (x2 < xmin)) continue;
if ((x1 > xmax) && (x2 > xmax)) continue;
y1 = wal->y; y2 = wal2->y;
if ((y1 < ymin) && (y2 < ymin)) continue;
if ((y1 > ymax) && (y2 > ymax)) continue;
dx = x2-x1; dy = y2-y1;
if (dx*(pos->y-y1) < (pos->x-x1)*dy) continue; //back
if (dx > 0) dax = dx*(ymin-y1); else dax = dx*(ymax-y1);
if (dy > 0) day = dy*(xmax-x1); else day = dy*(xmin-x1);
if (dax >= day) continue;
if (wal->cstat&dawalclipmask) continue;
sec = &sector[k];
#ifdef HAVE_CLIPSHAPE_FEATURE
if (curspr)
{
if (k==sectq[clipinfo[curidx].qend])
continue;
if ((sec->ceilingstat&1) && (sec->floorstat&1))
continue;
}
else
#endif
if (editstatus == 0)
{
if (((sec->ceilingstat&1) == 0) && (pos->z <= sec->ceilingz+(3<<8))) continue;
if (((sec->floorstat&1) == 0) && (pos->z >= sec->floorz-(3<<8))) continue;
}
for (i=clipsectnum-1; i>=0; i--)
if (clipsectorlist[i] == k) break;
if (i < 0) clipsectorlist[clipsectnum++] = k;
if ((x1 < xmin+MAXCLIPDIST) && (x2 < xmin+MAXCLIPDIST)) continue;
if ((x1 > xmax-MAXCLIPDIST) && (x2 > xmax-MAXCLIPDIST)) continue;
if ((y1 < ymin+MAXCLIPDIST) && (y2 < ymin+MAXCLIPDIST)) continue;
if ((y1 > ymax-MAXCLIPDIST) && (y2 > ymax-MAXCLIPDIST)) continue;
if (dx > 0) dax += dx*MAXCLIPDIST; else dax -= dx*MAXCLIPDIST;
if (dy > 0) day -= dy*MAXCLIPDIST; else day += dy*MAXCLIPDIST;
if (dax >= day) continue;
#ifdef YAX_ENABLE
if (mcf==-1 && curspr==NULL)
origclipsectorlist[origclipsectnum++] = k;
#endif
//It actually got here, through all the continue's!!!
getzsofslope(k, pos->x,pos->y, &daz,&daz2);
#ifdef HAVE_CLIPSHAPE_FEATURE
if (curspr)
{
int32_t fz,cz, hitwhat=(curspr-sprite)+49152;
getzsofslope(sectq[clipinfo[curidx].qend],pos->x,pos->y,&cz,&fz);
if ((sec->ceilingstat&1)==0)
{
if (pos->z < cz && cz < *florz) { *florz = cz; *florhit = hitwhat; }
if (pos->z > daz && daz > *ceilz) { *ceilz = daz; *ceilhit = hitwhat; }
}
if ((sec->floorstat&1)==0)
{
if (pos->z < daz2 && daz2 < *florz) { *florz = daz2; *florhit = hitwhat; }
if (pos->z > fz && fz > *ceilz) { *ceilz = fz; *ceilhit = hitwhat; }
}
}
else
#endif
{
#ifdef YAX_ENABLE
int16_t cb, fb;
yax_getbunches(k, &cb, &fb);
#endif
if (daz > *ceilz)
#ifdef YAX_ENABLE
if (mcf!=YAX_FLOOR && cb < 0)
#endif
*ceilz = daz, *ceilhit = k+16384;
if (daz2 < *florz)
#ifdef YAX_ENABLE
if (mcf!=YAX_CEILING && fb < 0)
#endif
*florz = daz2, *florhit = k+16384;
}
}
}
clipsectcnt++;
}
while (clipsectcnt < clipsectnum || clipspritecnt < clipspritenum);
#ifdef HAVE_CLIPSHAPE_FEATURE
if (curspr)
{
mapinfo_set(NULL, &origmapinfo); // restore original map
clipsectnum = clipspritenum = 0; // skip the next for loop and check afterwards
}
#endif
for (i=0; i<clipsectnum; i++)
{
for (j=headspritesect[clipsectorlist[i]]; j>=0; j=nextspritesect[j])
{
spr = &sprite[j];
cstat = spr->cstat;
if (cstat&dasprclipmask)
{
#ifdef HAVE_CLIPSHAPE_FEATURE
if (clipsprite_try(spr, xmin,ymin, xmax,ymax))
continue;
#endif
x1 = spr->x; y1 = spr->y;
clipyou = 0;
switch (cstat&48)
{
case 0:
k = walldist+(spr->clipdist<<2)+1;
if ((klabs(x1-pos->x) <= k) && (klabs(y1-pos->y) <= k))
{
daz = spr->z;
k = ((tilesizy[spr->picnum]*spr->yrepeat)<<1);
if (cstat&128) daz += k;
if (picanm[spr->picnum]&0x00ff0000)
daz -= ((int32_t)((int8_t)((picanm[spr->picnum]>>16)&255))*spr->yrepeat<<2);
daz2 = daz - (k<<1);
clipyou = 1;
}
break;
case 16:
tilenum = spr->picnum;
xoff = (int32_t)((int8_t)((picanm[tilenum]>>8)&255))+((int32_t)spr->xoffset);
if ((cstat&4) > 0) xoff = -xoff;
k = spr->ang; l = spr->xrepeat;
dax = sintable[k&2047]*l; day = sintable[(k+1536)&2047]*l;
l = tilesizx[tilenum]; k = (l>>1)+xoff;
x1 -= mulscale16(dax,k); x2 = x1+mulscale16(dax,l);
y1 -= mulscale16(day,k); y2 = y1+mulscale16(day,l);
if (clipinsideboxline(pos->x,pos->y,x1,y1,x2,y2,walldist+1) != 0)
{
daz = spr->z; k = ((tilesizy[spr->picnum]*spr->yrepeat)<<1);
if (cstat&128) daz += k;
if (picanm[spr->picnum]&0x00ff0000)
daz -= ((int32_t)((int8_t)((picanm[spr->picnum]>>16)&255))*spr->yrepeat<<2);
daz2 = daz-(k<<1);
clipyou = 1;
}
break;
case 32:
daz = spr->z; daz2 = daz;
if ((cstat&64) != 0)
if ((pos->z > daz) == ((cstat&8)==0)) continue;
tilenum = spr->picnum;
xoff = (int32_t)((int8_t)((picanm[tilenum]>>8)&255))+((int32_t)spr->xoffset);
yoff = (int32_t)((int8_t)((picanm[tilenum]>>16)&255))+((int32_t)spr->yoffset);
if ((cstat&4) > 0) xoff = -xoff;
if ((cstat&8) > 0) yoff = -yoff;
// &2047: FIXME ? DNE_BUG_HERE
// DNE 1.3D lights camera action (1st level), spr->ang==2306
ang = spr->ang&2047;
cosang = sintable[(ang+512)&2047]; sinang = sintable[ang];
xspan = tilesizx[tilenum]; xrepeat = spr->xrepeat;
yspan = tilesizy[tilenum]; yrepeat = spr->yrepeat;
dax = ((xspan>>1)+xoff)*xrepeat; day = ((yspan>>1)+yoff)*yrepeat;
x1 += dmulscale16(sinang,dax,cosang,day)-pos->x;
y1 += dmulscale16(sinang,day,-cosang,dax)-pos->y;
l = xspan*xrepeat;
x2 = x1 - mulscale16(sinang,l);
y2 = y1 + mulscale16(cosang,l);
l = yspan*yrepeat;
k = -mulscale16(cosang,l); x3 = x2+k; x4 = x1+k;
k = -mulscale16(sinang,l); y3 = y2+k; y4 = y1+k;
dax = mulscale14(sintable[(spr->ang-256+512)&2047],walldist+4);
day = mulscale14(sintable[(spr->ang-256)&2047],walldist+4);
x1 += dax; x2 -= day; x3 -= dax; x4 += day;
y1 += day; y2 += dax; y3 -= day; y4 -= dax;
if ((y1^y2) < 0)
{
if ((x1^x2) < 0) clipyou ^= (x1*y2<x2*y1)^(y1<y2);
else if (x1 >= 0) clipyou ^= 1;
}
if ((y2^y3) < 0)
{
if ((x2^x3) < 0) clipyou ^= (x2*y3<x3*y2)^(y2<y3);
else if (x2 >= 0) clipyou ^= 1;
}
if ((y3^y4) < 0)
{
if ((x3^x4) < 0) clipyou ^= (x3*y4<x4*y3)^(y3<y4);
else if (x3 >= 0) clipyou ^= 1;
}
if ((y4^y1) < 0)
{
if ((x4^x1) < 0) clipyou ^= (x4*y1<x1*y4)^(y4<y1);
else if (x4 >= 0) clipyou ^= 1;
}
break;
}
if (clipyou != 0)
{
if ((pos->z > daz) && (daz > *ceilz
#ifdef YAX_ENABLE
|| (daz == *ceilz && yax_getbunch(clipsectorlist[i], YAX_CEILING)>=0)
#endif
))
{
*ceilz = daz;
*ceilhit = j+49152;
}
if ((pos->z < daz2) && (daz2 < *florz
#ifdef YAX_ENABLE
// can have a floor-sprite laying directly on the floor!
|| (daz2 == *florz && yax_getbunch(clipsectorlist[i], YAX_FLOOR)>=0)
#endif
))
{
*florz = daz2;
*florhit = j+49152;
}
}
}
}
}
#ifdef HAVE_CLIPSHAPE_FEATURE
if (clipspritenum>0)
goto beginagain;
#endif
#ifdef YAX_ENABLE
if (numyaxbunches > 0)
{
int32_t dasecclipmask = yax_waltosecmask(dawalclipmask);
int16_t cb, fb, didchange;
yax_getbunches(sectnum, &cb, &fb);
mcf++;
clipsectcnt = 0; clipsectnum = 0;
didchange = 0;
if (cb>=0 && mcf==0 && *ceilhit==sectnum+16384)
{
for (i=0; i<origclipsectnum; i++)
{
j = origclipsectorlist[i];
if (yax_getbunch(j, YAX_CEILING) >= 0)
if (sector[j].ceilingstat&dasecclipmask)
break;
}
if (i==origclipsectnum)
for (i=0; i<origclipsectnum; i++)
{
cb = yax_getbunch(origclipsectorlist[i], YAX_CEILING);
if (cb < 0)
continue;
for (SECTORS_OF_BUNCH(cb,YAX_FLOOR, j))
if (inside(pos->x,pos->y, j)==1)
{
clipsectorlist[clipsectnum++] = j;
daz = getceilzofslope(j, pos->x,pos->y);
if (!didchange || daz > *ceilz)
didchange=1, *ceilhit = j+16384, *ceilz = daz;
}
}
if (clipsectnum==0)
mcf++;
}
else if (mcf==0)
mcf++;
didchange = 0;
if (fb>=0 && mcf==1 && *florhit==sectnum+16384)
{
for (i=0; i<origclipsectnum; i++)
{
j = origclipsectorlist[i];
if (yax_getbunch(j, YAX_FLOOR) >= 0)
if (sector[j].floorstat&dasecclipmask)
break;
}
// (almost) same as above, but with floors...
if (i==origclipsectnum)
for (i=0; i<origclipsectnum; i++)
{
fb = yax_getbunch(origclipsectorlist[i], YAX_FLOOR);
if (fb < 0)
continue;
for (SECTORS_OF_BUNCH(fb, YAX_CEILING, j))
if (inside(pos->x,pos->y, j)==1)
{
clipsectorlist[clipsectnum++] = j;
daz = getflorzofslope(j, pos->x,pos->y);
if (!didchange || daz < *florz)
didchange=1, *florhit = j+16384, *florz = daz;
}
}
}
if (clipsectnum > 0)
{
// sector-like sprite re-init:
curidx = -1;
curspr = NULL;
clipspritecnt = 0; clipspritenum = 0;
goto restart_grand;
}
}
#endif
}
void setaspect_new()
{
if (r_usenewaspect && newaspect_enable && getrendermode()!=4)
{
// the correction factor 100/107 has been found
// out experimentally. squares ftw!
int32_t vr, yx=(65536*4*100)/(3*107);
int32_t y, x;
if (fullscreen)
{
x=r_screenxy/100; y=r_screenxy%100;
if (y==0 || x==0) { x=4; y=3; }
}
else
{
x = xdim;
y = ydim;
}
vr = (65536*x*3)/(y*4);
setaspect(vr, yx);
}
else
setaspect(65536, divscale16(ydim*320, xdim*200));
}
//
// setview
//
void setview(int32_t x1, int32_t y1, int32_t x2, int32_t y2)
{
int32_t i;
windowx1 = x1; wx1 = (x1<<12);
windowy1 = y1; wy1 = (y1<<12);
windowx2 = x2; wx2 = ((x2+1)<<12);
windowy2 = y2; wy2 = ((y2+1)<<12);
xdimen = (x2-x1)+1; halfxdimen = (xdimen>>1);
xdimenrecip = divscale32(1L,xdimen);
ydimen = (y2-y1)+1;
setaspect_new();
for (i=0; i<windowx1; i++) { startumost[i] = 1, startdmost[i] = 0; }
for (i=windowx1; i<=windowx2; i++)
{ startumost[i] = windowy1, startdmost[i] = windowy2+1; }
for (i=windowx2+1; i<xdim; i++) { startumost[i] = 1, startdmost[i] = 0; }
/*
begindrawing(); //{{{
viewoffset = windowy1*bytesperline + windowx1;
enddrawing(); //}}}
*/
}
//
// setaspect
//
void setaspect(int32_t daxrange, int32_t daaspect)
{
viewingrange = daxrange;
viewingrangerecip = divscale32(1,daxrange);
yxaspect = daaspect;
xyaspect = divscale32(1,yxaspect);
xdimenscale = scale(xdimen,yxaspect,320);
xdimscale = scale(320,xyaspect,xdimen);
}
//
// flushperms
//
void flushperms(void)
{
permhead = permtail = 0;
}
//
// rotatesprite
//
void rotatesprite(int32_t sx, int32_t sy, int32_t z, int16_t a, int16_t picnum, int8_t dashade, char dapalnum, int32_t dastat, int32_t cx1, int32_t cy1, int32_t cx2, int32_t cy2)
{
int32_t i;
permfifotype *per, *per2;
if ((cx1 > cx2) || (cy1 > cy2)) return;
if (z <= 16) return;
if (picanm[picnum]&192) picnum += animateoffs(picnum,(int16_t)0xc000);
if ((tilesizx[picnum] <= 0) || (tilesizy[picnum] <= 0)) return;
if (((dastat&128) == 0) || (numpages < 2) || (beforedrawrooms != 0))
{
begindrawing(); //{{{
dorotatesprite(sx,sy,z,a,picnum,dashade,dapalnum,dastat,cx1,cy1,cx2,cy2,guniqhudid);
enddrawing(); //}}}
}
if ((dastat&64) && (cx1 <= 0) && (cy1 <= 0) && (cx2 >= xdim-1) && (cy2 >= ydim-1) &&
(sx == (160<<16)) && (sy == (100<<16)) && (z == 65536L) && (a == 0) && ((dastat&1) == 0))
permhead = permtail = 0;
if ((dastat&128) == 0) return;
if (numpages >= 2)
{
per = &permfifo[permhead];
per->sx = sx; per->sy = sy; per->z = z; per->a = a;
per->picnum = picnum;
per->dashade = dashade; per->dapalnum = dapalnum;
per->dastat = dastat;
per->pagesleft = numpages+((beforedrawrooms&1)<<7);
per->cx1 = cx1; per->cy1 = cy1; per->cx2 = cx2; per->cy2 = cy2;
per->uniqid = guniqhudid; //JF extension
//Would be better to optimize out true bounding boxes
if (dastat&64) //If non-masking write, checking for overlapping cases
{
for (i=permtail; i!=permhead; i=((i+1)&(MAXPERMS-1)))
{
per2 = &permfifo[i];
if ((per2->pagesleft&127) == 0) continue;
if (per2->sx != per->sx) continue;
if (per2->sy != per->sy) continue;
if (per2->z != per->z) continue;
if (per2->a != per->a) continue;
if (tilesizx[per2->picnum] > tilesizx[per->picnum]) continue;
if (tilesizy[per2->picnum] > tilesizy[per->picnum]) continue;
if (per2->cx1 < per->cx1) continue;
if (per2->cy1 < per->cy1) continue;
if (per2->cx2 > per->cx2) continue;
if (per2->cy2 > per->cy2) continue;
per2->pagesleft = 0;
}
if ((per->z == 65536) && (per->a == 0))
for (i=permtail; i!=permhead; i=((i+1)&(MAXPERMS-1)))
{
per2 = &permfifo[i];
if ((per2->pagesleft&127) == 0) continue;
if (per2->z != 65536) continue;
if (per2->a != 0) continue;
if (per2->cx1 < per->cx1) continue;
if (per2->cy1 < per->cy1) continue;
if (per2->cx2 > per->cx2) continue;
if (per2->cy2 > per->cy2) continue;
if ((per2->sx>>16) < (per->sx>>16)) continue;
if ((per2->sy>>16) < (per->sy>>16)) continue;
if ((per2->sx>>16)+tilesizx[per2->picnum] > (per->sx>>16)+tilesizx[per->picnum]) continue;
if ((per2->sy>>16)+tilesizy[per2->picnum] > (per->sy>>16)+tilesizy[per->picnum]) continue;
per2->pagesleft = 0;
}
}
permhead = ((permhead+1)&(MAXPERMS-1));
}
}
//
// makepalookup
//
void makepalookup(int32_t palnum, char *remapbuf, int8_t r, int8_t g, int8_t b, char dastat)
{
int32_t i, j, palscale;
char *ptr, *ptr2;
if (paletteloaded == 0) return;
if (palookup[palnum] == NULL)
{
//Allocate palookup buffer
if ((palookup[palnum] = (char *)Bmalloc(numpalookups<<8)) == NULL)
allocache((intptr_t *)&palookup[palnum],numpalookups<<8,&permanentlock);
}
if (dastat == 0) return;
if ((r|g|b|63) != 63) return;
if ((r|g|b) == 0)
{
for (i=0; i<256; i++)
{
ptr = (char *)(FP_OFF(palookup[0])+remapbuf[i]);
ptr2 = (char *)(FP_OFF(palookup[palnum])+i);
for (j=0; j<numpalookups; j++)
{ *ptr2 = *ptr; ptr += 256; ptr2 += 256; }
}
#if defined(USE_OPENGL)
palookupfog[palnum].r = 0;
palookupfog[palnum].g = 0;
palookupfog[palnum].b = 0;
#endif
}
else
{
ptr2 = palookup[palnum];
for (i=0; i<numpalookups; i++)
{
palscale = divscale16(i,numpalookups);
for (j=0; j<256; j++)
{
ptr = (char *)&palette[remapbuf[j]*3];
*ptr2++ = getclosestcol((int32_t)ptr[0]+mulscale16(r-ptr[0],palscale),
(int32_t)ptr[1]+mulscale16(g-ptr[1],palscale),
(int32_t)ptr[2]+mulscale16(b-ptr[2],palscale));
}
}
#if defined(USE_OPENGL)
palookupfog[palnum].r = r;
palookupfog[palnum].g = g;
palookupfog[palnum].b = b;
#endif
}
}
//
// setbasepaltable
//
void setbasepaltable(uint8_t **thebasepaltable, uint8_t thebasepalcount)
{
if (thebasepalcount >= MAXBASEPALS)
thebasepalcount = MAXBASEPALS - 1;
basepaltableptr = thebasepaltable;
basepalcount = thebasepalcount;
}
//
// setbrightness
//
// flags:
// 1: don't setpalette(), DON'T USE THIS FLAG!
// 2: don't gltexinvalidateall()
// 4: don't calc curbrightness from dabrightness, DON'T USE THIS FLAG!
// 8: don't gltexinvalidate8()
// 16: don't reset palfade*
void setbrightness(char dabrightness, uint8_t dapalid, uint8_t flags)
{
int32_t i, j, paldidchange=0;
uint8_t *dapal;
// uint32_t lastbright = curbrightness;
assert((flags&(1+4))==0);
if (dapalid >= basepalcount)
dapalid = 0;
curbasepal = dapalid;
dapal = basepaltableptr[dapalid];
if (!(flags&4))
{
curbrightness = min(max((int32_t)dabrightness,0),15);
// if (lastbright != (unsigned)curbrightness)
// vid_gamma = 1.0 + ((float)curbrightness / 10.0);
}
j = 0;
if (setgamma())
j = curbrightness;
for (i=0; i<256; i++)
{
// save palette without any brightness adjustment
curpalette[i].r = dapal[i*3+0] << 2;
curpalette[i].g = dapal[i*3+1] << 2;
curpalette[i].b = dapal[i*3+2] << 2;
curpalette[i].f = 0;
// brightness adjust the palette
curpalettefaded[i].b = britable[j][ curpalette[i].b ];
curpalettefaded[i].g = britable[j][ curpalette[i].g ];
curpalettefaded[i].r = britable[j][ curpalette[i].r ];
curpalettefaded[i].f = 0;
}
if ((flags&16) && palfadedelta) // keep the fade
setpalettefade_calc(palfadedelta>>2);
{
static uint32_t lastpalettesum=0;
uint32_t newpalettesum = crc32once((uint8_t *)curpalettefaded, sizeof(curpalettefaded));
paldidchange = (newpalettesum != lastpalettesum);
if (paldidchange || newpalettesum != g_lastpalettesum)
{
if ((flags&1) == 0) setpalette(0,256);
}
g_lastpalettesum = lastpalettesum = newpalettesum;
}
#ifdef USE_OPENGL
if (rendmode >= 3)
{
// only reset the textures if the corresponding preserve flags are clear and
// either (a) the new palette is different to the last, or (b) the brightness
// changed and we couldn't set it using hardware gamma
if (!(flags&2) && paldidchange)
gltexinvalidateall();
if (!(flags&8) && paldidchange)
gltexinvalidate8();
#ifdef POLYMER
if ((rendmode == 4) && paldidchange)
polymer_texinvalidate();
#endif
}
#endif
if ((flags&16)==0)
{
palfadergb.r = palfadergb.g = palfadergb.b = 0;
palfadedelta = 0;
}
}
static inline palette_t getpal(int32_t col)
{
if (gammabrightness) return curpalette[col];
else
{
palette_t p;
p.b = britable[curbrightness][ curpalette[col].b ];
p.g = britable[curbrightness][ curpalette[col].g ];
p.r = britable[curbrightness][ curpalette[col].r ];
//#ifdef __APPLE__
p.f = 0; // make gcc on osx happy
//#endif
return p;
}
}
static void setpalettefade_calc(uint8_t offset)
{
int32_t i;
palette_t p;
for (i=0; i<256; i++)
{
p = getpal(i);
curpalettefaded[i].b =
p.b + (((palfadergb.b - p.b) * offset) >> 6);
curpalettefaded[i].g =
p.g + (((palfadergb.g - p.g) * offset) >> 6);
curpalettefaded[i].r =
p.r + (((palfadergb.r - p.r) * offset) >> 6);
curpalettefaded[i].f = 0;
}
}
//
// setpalettefade
//
void setpalettefade(char r, char g, char b, char offset)
{
palfadergb.r = min(63,r) << 2;
palfadergb.g = min(63,g) << 2;
palfadergb.b = min(63,b) << 2;
palfadedelta = min(63,offset) << 2;
setpalettefade_calc(offset);
{
static uint32_t lastpalettesum=0;
uint32_t newpalettesum = crc32once((uint8_t *)curpalettefaded, sizeof(curpalettefaded));
if (newpalettesum != lastpalettesum || newpalettesum != g_lastpalettesum)
{
setpalette(0,256);
}
g_lastpalettesum = lastpalettesum = newpalettesum;
}
}
//
// clearview
//
void clearview(int32_t dacol)
{
intptr_t p;
int32_t y, dx;
if (qsetmode != 200) return;
#ifdef USE_OPENGL
if (rendmode >= 3)
{
palette_t p = getpal(dacol);
bglClearColor(((float)p.r)/255.0,
((float)p.g)/255.0,
((float)p.b)/255.0,
0);
bglClear(GL_COLOR_BUFFER_BIT);
return;
}
#endif
begindrawing(); //{{{
dx = windowx2-windowx1+1;
//dacol += (dacol<<8); dacol += (dacol<<16);
p = frameplace+ylookup[windowy1]+windowx1;
for (y=windowy1; y<=windowy2; y++)
{
//clearbufbyte((void*)p,dx,dacol);
Bmemset((void *)p,dacol,dx);
p += ylookup[1];
}
enddrawing(); //}}}
faketimerhandler();
}
//
// clearallviews
//
void clearallviews(int32_t dacol)
{
if (qsetmode != 200) return;
//dacol += (dacol<<8); dacol += (dacol<<16);
#ifdef USE_OPENGL
if (rendmode >= 3)
{
palette_t p = getpal(dacol);
bglViewport(0,0,xdim,ydim); glox1 = -1;
bglClearColor(((float)p.r)/255.0,
((float)p.g)/255.0,
((float)p.b)/255.0,
0);
bglClear(GL_COLOR_BUFFER_BIT);
return;
}
#endif
begindrawing(); //{{{
Bmemset((void *)frameplace,dacol,bytesperline*yres);
enddrawing(); //}}}
//nextpage();
faketimerhandler();
}
//
// plotpixel
//
void plotpixel(int32_t x, int32_t y, char col)
{
#ifdef USE_OPENGL
if (rendmode >= 3 && qsetmode == 200)
{
palette_t p = getpal(col);
setpolymost2dview(); // JBF 20040205: more efficient setup
// bglBegin(GL_POINTS);
// bglColor4ub(p.r,p.g,p.b,255);
// bglVertex2i(x,y);
// bglEnd();
bglRasterPos4i(x, y, 0, 1);
bglDrawPixels(1, 1, GL_RGB, GL_UNSIGNED_BYTE, &p);
bglRasterPos4i(0, 0, 0, 1);
return;
}
#endif
begindrawing(); //{{{
drawpixel_safe((void *)(ylookup[y]+x+frameplace),(int32_t)col);
enddrawing(); //}}}
}
void plotlines2d(const int32_t *xx, const int32_t *yy, int32_t numpoints, char col)
{
int32_t i;
#ifdef USE_OPENGL
if (rendmode >= 3 && qsetmode == 200)
{
palette_t p = getpal(col);
bglBegin(GL_LINE_STRIP);
bglColor4ub(p.r, p.g, p.b, 1);
for (i=0; i<numpoints; i++)
bglVertex2i(xx[i], yy[i]);
bglEnd();
return;
}
#endif
{
int32_t odrawlinepat = drawlinepat;
drawlinepat = 0xffffffff;
begindrawing();
for (i=0; i<numpoints-1; i++)
drawline16(xx[i], yy[i], xx[i+1], yy[i+1], col);
enddrawing();
drawlinepat = odrawlinepat;
}
}
//
// getpixel
//
char getpixel(int32_t x, int32_t y)
{
char r;
#ifdef USE_OPENGL
if (rendmode >= 3 && qsetmode == 200) return 0;
#endif
begindrawing(); //{{{
r = readpixel((void *)(ylookup[y]+x+frameplace));
enddrawing(); //}}}
return(r);
}
//MUST USE RESTOREFORDRAWROOMS AFTER DRAWING
//
// setviewtotile
//
void setviewtotile(int16_t tilenume, int32_t xsiz, int32_t ysiz)
{
int32_t i, j;
//DRAWROOMS TO TILE BACKUP&SET CODE
tilesizx[tilenume] = xsiz; tilesizy[tilenume] = ysiz;
bakxsiz[setviewcnt] = xsiz; bakysiz[setviewcnt] = ysiz;
bakframeplace[setviewcnt] = frameplace; frameplace = waloff[tilenume];
bakwindowx1[setviewcnt] = windowx1; bakwindowy1[setviewcnt] = windowy1;
bakwindowx2[setviewcnt] = windowx2; bakwindowy2[setviewcnt] = windowy2;
#ifdef USE_OPENGL
if (setviewcnt == 0)
{
bakrendmode = rendmode;
baktile = tilenume;
}
rendmode = 0;//2;
#endif
copybufbyte(&startumost[windowx1],&bakumost[windowx1],(windowx2-windowx1+1)*sizeof(bakumost[0]));
copybufbyte(&startdmost[windowx1],&bakdmost[windowx1],(windowx2-windowx1+1)*sizeof(bakdmost[0]));
setviewcnt++;
offscreenrendering = 1;
setview(0,0,ysiz-1,xsiz-1);
setaspect(65536,65536);
j = 0; for (i=0; i<=xsiz; i++) { ylookup[i] = j, j += ysiz; }
setvlinebpl(ysiz);
}
//
// setviewback
//
extern char modechange;
void setviewback(void)
{
int32_t i, j, k;
if (setviewcnt <= 0) return;
setviewcnt--;
offscreenrendering = (setviewcnt>0);
#ifdef USE_OPENGL
if (setviewcnt == 0)
{
rendmode = bakrendmode;
invalidatetile(baktile,-1,-1);
}
#endif
setview(bakwindowx1[setviewcnt],bakwindowy1[setviewcnt],
bakwindowx2[setviewcnt],bakwindowy2[setviewcnt]);
copybufbyte(&bakumost[windowx1],&startumost[windowx1],(windowx2-windowx1+1)*sizeof(startumost[0]));
copybufbyte(&bakdmost[windowx1],&startdmost[windowx1],(windowx2-windowx1+1)*sizeof(startdmost[0]));
frameplace = bakframeplace[setviewcnt];
if (setviewcnt == 0)
k = bakxsiz[0];
else
k = max(bakxsiz[setviewcnt-1],bakxsiz[setviewcnt]);
j = 0; for (i=0; i<=k; i++) ylookup[i] = j, j += bytesperline;
setvlinebpl(bytesperline);
modechange=1;
}
//
// squarerotatetile
//
void squarerotatetile(int16_t tilenume)
{
int32_t siz;
//supports square tiles only for rotation part
if ((siz = tilesizx[tilenume]) == tilesizy[tilenume])
{
int32_t i = siz-1;
for (; i>=0; i--)
{
int32_t j=(i>>1)-1;
char *ptr1 = (char *)(waloff[tilenume]+i*(siz+1)), *ptr2 = ptr1;
if (i&1) swapchar(--ptr1, (ptr2 -= siz));
for (; j>=0; j--) swapchar2((ptr1 -= 2), (ptr2 -= (siz<<1)), siz);
}
}
}
//
// preparemirror
//
void preparemirror(int32_t dax, int32_t day, int32_t daz, int16_t daang, int32_t dahoriz, int16_t dawall, int16_t dasector, int32_t *tposx, int32_t *tposy, int16_t *tang)
{
int32_t i, j, x, y, dx, dy;
UNREFERENCED_PARAMETER(daz);
UNREFERENCED_PARAMETER(dahoriz);
UNREFERENCED_PARAMETER(dasector);
x = wall[dawall].x; dx = wall[wall[dawall].point2].x-x;
y = wall[dawall].y; dy = wall[wall[dawall].point2].y-y;
j = dx*dx + dy*dy; if (j == 0) return;
i = (((dax-x)*dx + (day-y)*dy)<<1);
*tposx = (x<<1) + scale(dx,i,j) - dax;
*tposy = (y<<1) + scale(dy,i,j) - day;
*tang = (((getangle(dx,dy)<<1)-daang)&2047);
inpreparemirror = 1;
}
//
// completemirror
//
void completemirror(void)
{
int32_t i, dy;
intptr_t p;
#ifdef USE_OPENGL
if (rendmode) return;
#endif
//Can't reverse with uninitialized data
if (inpreparemirror) { inpreparemirror = 0; return; }
if (mirrorsx1 > 0) mirrorsx1--;
if (mirrorsx2 < windowx2-windowx1-1) mirrorsx2++;
if (mirrorsx2 < mirrorsx1) return;
begindrawing();
p = frameplace + ylookup[windowy1+mirrorsy1] + windowx1+mirrorsx1;
i = windowx2-windowx1-mirrorsx2-mirrorsx1; mirrorsx2 -= mirrorsx1;
for (dy=mirrorsy2-mirrorsy1-1; dy>=0; dy--)
{
copybufbyte((void *)(p+1),tempbuf,mirrorsx2+1);
tempbuf[mirrorsx2] = tempbuf[mirrorsx2-1];
copybufreverse(&tempbuf[mirrorsx2],(void *)(p+i),mirrorsx2+1);
p += ylookup[1];
faketimerhandler();
}
enddrawing();
}
//
// sectorofwall
//
static int32_t sectorofwall_internal(int16_t theline)
{
int32_t i, gap;
gap = (numsectors>>1); i = gap;
while (gap > 1)
{
gap >>= 1;
if (sector[i].wallptr < theline) i += gap; else i -= gap;
}
while (sector[i].wallptr > theline) i--;
while (sector[i].wallptr+sector[i].wallnum <= theline) i++;
return(i);
}
int32_t sectorofwall(int16_t theline)
{
int32_t i;
if ((theline < 0) || (theline >= numwalls)) return(-1);
i = wall[theline].nextwall; if (i >= 0 && i < MAXWALLS) return(wall[i].nextsector);
return sectorofwall_internal(theline);
}
int32_t sectorofwall_noquick(int16_t theline)
{
if ((theline < 0) || (theline >= numwalls)) return(-1);
return sectorofwall_internal(theline);
}
//
// getceilzofslope
//
int32_t getceilzofslope(int16_t sectnum, int32_t dax, int32_t day)
{
if (!(sector[sectnum].ceilingstat&2)) return(sector[sectnum].ceilingz);
{
int32_t dx, dy, i, j;
walltype *wal;
wal = &wall[sector[sectnum].wallptr];
dx = wall[wal->point2].x-wal->x; dy = wall[wal->point2].y-wal->y;
i = (nsqrtasm(dx*dx+dy*dy)<<5); if (i == 0) return(sector[sectnum].ceilingz);
j = dmulscale3(dx,day-wal->y,-dy,dax-wal->x);
return(sector[sectnum].ceilingz+(scale(sector[sectnum].ceilingheinum,j>>1,i)<<1));
}
}
//
// getflorzofslope
//
int32_t getflorzofslope(int16_t sectnum, int32_t dax, int32_t day)
{
if (!(sector[sectnum].floorstat&2)) return(sector[sectnum].floorz);
{
int32_t dx, dy, i, j;
walltype *wal;
wal = &wall[sector[sectnum].wallptr];
dx = wall[wal->point2].x-wal->x; dy = wall[wal->point2].y-wal->y;
i = (nsqrtasm(dx*dx+dy*dy)<<5); if (i == 0) return(sector[sectnum].floorz);
j = dmulscale3(dx,day-wal->y,-dy,dax-wal->x);
return(sector[sectnum].floorz+(scale(sector[sectnum].floorheinum,j>>1,i)<<1));
}
}
//
// getzsofslope
//
void getzsofslope(int16_t sectnum, int32_t dax, int32_t day, int32_t *ceilz, int32_t *florz)
{
int32_t dx, dy, i, j;
walltype *wal, *wal2;
sectortype *sec;
sec = &sector[sectnum];
*ceilz = sec->ceilingz; *florz = sec->floorz;
if ((sec->ceilingstat|sec->floorstat)&2)
{
wal = &wall[sec->wallptr]; wal2 = &wall[wal->point2];
dx = wal2->x-wal->x; dy = wal2->y-wal->y;
i = (nsqrtasm(dx*dx+dy*dy)<<5); if (i == 0) return;
j = dmulscale3(dx,day-wal->y,-dy,dax-wal->x);
if (sec->ceilingstat&2) *ceilz = (*ceilz)+(scale(sec->ceilingheinum,j>>1,i)<<1);
if (sec->floorstat&2) *florz = (*florz)+(scale(sec->floorheinum,j>>1,i)<<1);
}
}
//
// alignceilslope
//
void alignceilslope(int16_t dasect, int32_t x, int32_t y, int32_t z)
{
int32_t i, dax, day;
walltype *wal;
wal = &wall[sector[dasect].wallptr];
dax = wall[wal->point2].x-wal->x;
day = wall[wal->point2].y-wal->y;
i = (y-wal->y)*dax - (x-wal->x)*day; if (i == 0) return;
sector[dasect].ceilingheinum = scale((z-sector[dasect].ceilingz)<<8,
nsqrtasm(dax*dax+day*day),i);
if (sector[dasect].ceilingheinum == 0) sector[dasect].ceilingstat &= ~2;
else sector[dasect].ceilingstat |= 2;
}
//
// alignflorslope
//
void alignflorslope(int16_t dasect, int32_t x, int32_t y, int32_t z)
{
int32_t i, dax, day;
walltype *wal;
wal = &wall[sector[dasect].wallptr];
dax = wall[wal->point2].x-wal->x;
day = wall[wal->point2].y-wal->y;
i = (y-wal->y)*dax - (x-wal->x)*day; if (i == 0) return;
sector[dasect].floorheinum = scale((z-sector[dasect].floorz)<<8,
nsqrtasm(dax*dax+day*day),i);
if (sector[dasect].floorheinum == 0) sector[dasect].floorstat &= ~2;
else sector[dasect].floorstat |= 2;
}
//
// loopnumofsector
//
int32_t loopnumofsector(int16_t sectnum, int16_t wallnum)
{
int32_t i, numloops, startwall, endwall;
numloops = 0;
startwall = sector[sectnum].wallptr;
endwall = startwall + sector[sectnum].wallnum;
for (i=startwall; i<endwall; i++)
{
if (i == wallnum) return(numloops);
if (wall[i].point2 < i) numloops++;
}
return(-1);
}
//
// setfirstwall
//
void setfirstwall(int16_t sectnum, int16_t newfirstwall)
{
int32_t i, j, k, numwallsofloop;
int32_t startwall, endwall, danumwalls, dagoalloop;
walltype *tmpwall;
startwall = sector[sectnum].wallptr;
danumwalls = sector[sectnum].wallnum;
endwall = startwall+danumwalls;
if ((newfirstwall < startwall) || (newfirstwall >= startwall+danumwalls)) return;
tmpwall = Bmalloc(danumwalls * sizeof(walltype));
if (!tmpwall)
{
initprintf("setfirstwall: OUT OF MEMORY!\n");
return;
}
Bmemcpy(tmpwall, &wall[startwall], danumwalls*sizeof(walltype));
// for (i=0; i<danumwalls; i++)
// Bmemcpy(&wall[i+numwalls],&wall[i+startwall],sizeof(walltype));
numwallsofloop = 0;
i = newfirstwall;
do
{
numwallsofloop++;
i = wall[i].point2;
}
while (i != newfirstwall);
//Put correct loop at beginning
dagoalloop = loopnumofsector(sectnum,newfirstwall);
if (dagoalloop > 0)
{
j = 0;
while (loopnumofsector(sectnum,j+startwall) != dagoalloop)
j++;
for (i=0; i<danumwalls; i++)
{
k = i+j; if (k >= danumwalls) k -= danumwalls;
Bmemcpy(&wall[startwall+i], &tmpwall[k], sizeof(walltype));
wall[startwall+i].point2 += danumwalls-startwall-j;
if (wall[startwall+i].point2 >= danumwalls)
wall[startwall+i].point2 -= danumwalls;
wall[startwall+i].point2 += startwall;
}
newfirstwall += danumwalls-j;
if (newfirstwall >= startwall+danumwalls)
newfirstwall -= danumwalls;
}
for (i=0; i<numwallsofloop; i++)
Bmemcpy(&tmpwall[i], &wall[i+startwall], sizeof(walltype));
for (i=0; i<numwallsofloop; i++)
{
k = i+newfirstwall-startwall;
if (k >= numwallsofloop) k -= numwallsofloop;
Bmemcpy(&wall[startwall+i], &tmpwall[k], sizeof(walltype));
wall[startwall+i].point2 += numwallsofloop-newfirstwall;
if (wall[startwall+i].point2 >= numwallsofloop)
wall[startwall+i].point2 -= numwallsofloop;
wall[startwall+i].point2 += startwall;
}
for (i=startwall; i<endwall; i++)
if (wall[i].nextwall >= 0)
wall[wall[i].nextwall].nextwall = i;
#ifdef YAX_ENABLE
{
int16_t cb, fb;
yax_getbunches(sectnum, &cb, &fb);
if (cb>=0 || fb>=0)
{
for (i=startwall; i<endwall; i++)
{
j = yax_getnextwall(i, YAX_CEILING);
if (j >= 0)
yax_setnextwall(j, YAX_FLOOR, i);
j = yax_getnextwall(i, YAX_FLOOR);
if (j >= 0)
yax_setnextwall(j, YAX_CEILING, i);
}
}
}
#endif
Bfree(tmpwall);
}
//
// drawline256
//
void drawline256(int32_t x1, int32_t y1, int32_t x2, int32_t y2, char col)
{
int32_t dx, dy, i, j, inc, plc, daend;
intptr_t p;
col = palookup[0][col];
#ifdef USE_OPENGL
if (rendmode >= 3)
{
palette_t p = getpal(col);
setpolymost2dview(); // JBF 20040205: more efficient setup
//bglEnable(GL_BLEND); // When using line antialiasing, this is needed
bglBegin(GL_LINES);
bglColor4ub(p.r,p.g,p.b,255);
bglVertex2f((float)x1/4096.0,(float)y1/4096.0);
bglVertex2f((float)x2/4096.0,(float)y2/4096.0);
bglEnd();
//bglDisable(GL_BLEND);
return;
}
#endif
dx = x2-x1; dy = y2-y1;
if (dx >= 0)
{
if ((x1 >= wx2) || (x2 < wx1)) return;
if (x1 < wx1) y1 += scale(wx1-x1,dy,dx), x1 = wx1;
if (x2 > wx2) y2 += scale(wx2-x2,dy,dx), x2 = wx2;
}
else
{
if ((x2 >= wx2) || (x1 < wx1)) return;
if (x2 < wx1) y2 += scale(wx1-x2,dy,dx), x2 = wx1;
if (x1 > wx2) y1 += scale(wx2-x1,dy,dx), x1 = wx2;
}
if (dy >= 0)
{
if ((y1 >= wy2) || (y2 < wy1)) return;
if (y1 < wy1) x1 += scale(wy1-y1,dx,dy), y1 = wy1;
if (y2 > wy2) x2 += scale(wy2-y2,dx,dy), y2 = wy2;
}
else
{
if ((y2 >= wy2) || (y1 < wy1)) return;
if (y2 < wy1) x2 += scale(wy1-y2,dx,dy), y2 = wy1;
if (y1 > wy2) x1 += scale(wy2-y1,dx,dy), y1 = wy2;
}
if (klabs(dx) >= klabs(dy))
{
if (dx == 0) return;
if (dx < 0)
{
i = x1; x1 = x2; x2 = i;
i = y1; y1 = y2; y2 = i;
}
inc = divscale12(dy,dx);
plc = y1+mulscale12((2047-x1)&4095,inc);
i = ((x1+2048)>>12); daend = ((x2+2048)>>12);
begindrawing(); //{{{
for (; i<daend; i++)
{
j = (plc>>12);
if ((j >= startumost[i]) && (j < startdmost[i]))
drawpixel_safe((void *)(frameplace+ylookup[j]+i),col);
plc += inc;
}
enddrawing(); //}}}
}
else
{
if (dy < 0)
{
i = x1; x1 = x2; x2 = i;
i = y1; y1 = y2; y2 = i;
}
inc = divscale12(dx,dy);
plc = x1+mulscale12((2047-y1)&4095,inc);
i = ((y1+2048)>>12); daend = ((y2+2048)>>12);
begindrawing(); //{{{
p = ylookup[i]+frameplace;
for (; i<daend; i++)
{
j = (plc>>12);
if ((i >= startumost[j]) && (i < startdmost[j]))
drawpixel_safe((void *)(j+p),col);
plc += inc; p += ylookup[1];
}
enddrawing(); //}}}
}
}
//static void attach_here() {}
//
// drawline16
//
// JBF: Had to add extra tests to make sure x-coordinates weren't winding up -'ve
// after clipping or crashes would ensue
uint32_t drawlinepat = 0xffffffff;
int32_t drawline16(int32_t x1, int32_t y1, int32_t x2, int32_t y2, char col)
{
int32_t i, dx, dy, pinc, d;
uint32_t patc=0;
intptr_t p;
//int32_t odx,ody;
//int32_t ox1=x1,oy1=y1, ox2=x2,oy2=y2;
dx = x2-x1;
dy = y2-y1;
//odx=dx;
//ody=dy;
if (dx >= 0)
{
if (x1 >= xres || x2 < 0)
return 0;
if (x1 < 0)
{
if (dy) y1 += scale(0-x1,dy,dx);
x1 = 0;
}
if (x2 >= xres)
{
if (dy) y2 += scale(xres-1-x2,dy,dx);
x2 = xres-1;
}
}
else
{
if (x2 >= xres || x1 < 0)
return 0;
if (x2 < 0)
{
if (dy) y2 += scale(0-x2,dy,dx);
x2 = 0;
}
if (x1 >= xres)
{
if (dy) y1 += scale(xres-1-x1,dy,dx);
x1 = xres-1;
}
}
if (dy >= 0)
{
if (y1 >= ydim16 || y2 < 0)
return 0;
if (y1 < 0)
{
if (dx) x1 += scale(0-y1,dx,dy);
y1 = 0;
x1 = clamp(x1, 0, xres-1);
}
if (y2 >= ydim16)
{
if (dx) x2 += scale(ydim16-1-y2,dx,dy);
y2 = ydim16-1;
x2 = clamp(x2, 0, xres-1);
}
}
else
{
if (y2 >= ydim16 || y1 < 0)
return 0;
if (y2 < 0)
{
if (dx) x2 += scale(0-y2,dx,dy);
y2 = 0;
x2 = clamp(x2, 0, xres-1);
}
if (y1 >= ydim16)
{
if (dx) x1 += scale(ydim16-1-y1,dx,dy);
y1 = ydim16-1;
x1 = clamp(x1, 0, xres-1);
}
}
//if (ox1||ox2||oy1||oy2)
// if (x1<0||x1>=xres || y2<0||y2>=yres)
// attach_here();
dx = klabs(x2-x1)+1; dy = klabs(y2-y1)+1;
if (dx >= dy)
{
if (x2 < x1)
{
i = x1; x1 = x2; x2 = i;
i = y1; y1 = y2; y2 = i;
}
d = 0;
if (y2 > y1) pinc = bytesperline; else pinc = -bytesperline;
begindrawing(); //{{{
p = (y1*bytesperline)+x1+frameplace;
if (dy == 0 && drawlinepat == 0xffffffff)
{
i = ((int32_t)col<<24)|((int32_t)col<<16)|((int32_t)col<<8)|col;
clearbufbyte((void *)p, dx, i);
}
else
for (i=dx; i>0; i--)
{
if (drawlinepat & pow2long[(patc++)&31])
drawpixel((char *)p, col);
d += dy;
if (d >= dx) { d -= dx; p += pinc; }
p++;
}
enddrawing(); //}}}
return 1;
}
if (y2 < y1)
{
i = x1; x1 = x2; x2 = i;
i = y1; y1 = y2; y2 = i;
}
d = 0;
if (x2 > x1) pinc = 1; else pinc = -1;
begindrawing(); //{{{
p = (y1*bytesperline)+x1+frameplace;
for (i=dy; i>0; i--)
{
if (drawlinepat & pow2long[(patc++)&31])
drawpixel((char *)p, col);
d += dx;
if (d >= dy) { d -= dy; p += pinc; }
p += bytesperline;
}
enddrawing(); //}}}
return 1;
}
static void drawline16mid(int32_t x1, int32_t y1, int32_t x2, int32_t y2, char col)
{
drawline16(halfxdim16+x1,midydim16+y1, halfxdim16+x2,midydim16+y2, col);
}
// eccen: eccentricity of the ellipse,
// 16384: circle
// <16384: shrink in y
// >16384: grow in y
void drawcircle16(int32_t x1, int32_t y1, int32_t r, int32_t eccen, char col)
{
if (eccen==16384)
{
intptr_t p;
int32_t xp, yp, xpbpl, ypbpl, d, de, dse, patc=0;
uint32_t uxres = xres, uydim16 = ydim16;
if (r < 0) r = -r;
if (x1+r < 0 || x1-r >= xres) return;
if (y1+r < 0 || y1-r >= ydim16) return;
/*
* d
* 6 | 7
* \ | /
* 5 \|/ 8
* c----+----a
* 4 /|\ 1
* / | \
* 3 | 2
* b
*/
xp = 0;
yp = r;
d = 1 - r;
de = 2;
dse = 5 - (r << 1);
begindrawing();
p = (y1*bytesperline)+x1+frameplace;
if (drawlinepat & pow2long[(patc++)&31])
{
if ((uint32_t)y1 < uydim16 && (uint32_t)(x1+r) < uxres)
drawpixel((char *)(p+r), col); // a
if ((uint32_t)x1 < uxres && (uint32_t)(y1+r) < uydim16)
drawpixel((char *)(p+(r*bytesperline)), col); // b
if ((uint32_t)y1 < uydim16 && (uint32_t)(x1-r) < uxres)
drawpixel((char *)(p-r), col); // c
if ((uint32_t)x1 < uxres && (uint32_t)(y1-r) < uydim16)
drawpixel((char *)(p-(r*bytesperline)), col); // d
}
do
{
if (d < 0)
{
d += de;
de += 2;
dse += 2;
xp++;
}
else
{
d += dse;
de += 2;
dse += 4;
xp++;
yp--;
}
ypbpl = yp*bytesperline;
xpbpl = xp*bytesperline;
if (drawlinepat & pow2long[(patc++)&31])
{
if ((uint32_t)(x1+yp) < uxres && (uint32_t)(y1+xp) < uydim16)
drawpixel_safe((char *)(p+yp+xpbpl), col); // 1
if ((uint32_t)(x1+xp) < uxres && (uint32_t)(y1+yp) < uydim16)
drawpixel_safe((char *)(p+xp+ypbpl), col); // 2
if ((uint32_t)(x1-xp) < uxres && (uint32_t)(y1+yp) < uydim16)
drawpixel_safe((char *)(p-xp+ypbpl), col); // 3
if ((uint32_t)(x1-yp) < uxres && (uint32_t)(y1+xp) < uydim16)
drawpixel_safe((char *)(p-yp+xpbpl), col); // 4
if ((uint32_t)(x1-yp) < uxres && (uint32_t)(y1-xp) < uydim16)
drawpixel_safe((char *)(p-yp-xpbpl), col); // 5
if ((uint32_t)(x1-xp) < uxres && (uint32_t)(y1-yp) < uydim16)
drawpixel_safe((char *)(p-xp-ypbpl), col); // 6
if ((uint32_t)(x1+xp) < uxres && (uint32_t)(y1-yp) < uydim16)
drawpixel_safe((char *)(p+xp-ypbpl), col); // 7
if ((uint32_t)(x1+yp) < uxres && (uint32_t)(y1-xp) < uydim16)
drawpixel_safe((char *)(p+yp-xpbpl), col); // 8
}
}
while (yp > xp);
enddrawing();
}
else
{
// JonoF's rough approximation of a circle
int32_t l,spx,spy,lpx,lpy,px,py;
spx = lpx = x1 + mulscale14(r,sintable[0]);
spy = lpy = y1 + mulscale14(eccen, mulscale14(r,sintable[512]));
for (l=64; l<2048; l+=64)
{
px = x1 + mulscale14(r,sintable[l]);
py = y1 + mulscale14(eccen, mulscale14(r,sintable[(l+512)&2047]));
drawline16(lpx,lpy,px,py,col);
lpx = px;
lpy = py;
}
drawline16(lpx,lpy,spx,spy,col);
}
}
//
// qsetmodeany
//
void qsetmodeany(int32_t daxdim, int32_t daydim)
{
if (daxdim < 640) daxdim = 640;
if (daydim < 480) daydim = 480;
if (qsetmode != ((daxdim<<16)|(daydim&0xffff)))
{
g_lastpalettesum = 0;
if (setvideomode(daxdim, daydim, 8, fullscreen) < 0)
return;
xdim = xres;
ydim = yres;
ydim16 = yres - STATUS2DSIZ2;
halfxdim16 = xres >> 1;
midydim16 = ydim16 >> 1; // scale(200,yres,480);
begindrawing(); //{{{
Bmemset((char *)frameplace, 0, yres*bytesperline);
enddrawing(); //}}}
}
qsetmode = ((daxdim<<16)|(daydim&0xffff));
}
//
// clear2dscreen
//
void clear2dscreen(void)
{
int32_t clearsz;
begindrawing(); //{{{
if (ydim16 <= yres-STATUS2DSIZ2)
clearsz = yres - STATUS2DSIZ2;
else
clearsz = yres;
Bmemset((char *)frameplace, 0, bytesperline*clearsz);
enddrawing(); //}}}
}
////////// editor side view //////////
int32_t scalescreeny(int32_t sy)
{
if (m32_sideview)
return mulscale14(sy, m32_sidesin);
else
return sy;
}
// return screen coordinates for BUILD coords x and y (relative to current position)
void screencoords(int32_t *xres, int32_t *yres, int32_t x, int32_t y, int32_t zoome)
{
if (m32_sideview)
rotatepoint(0,0, x,y, m32_sideang, &x,&y);
*xres = mulscale14(x,zoome);
*yres = scalescreeny(mulscale14(y,zoome));
}
#if 0
void invscreencoords(int32_t *dx, int32_t *dy, int32_t sx, int32_t sy, int32_t zoome)
{
if (m32_sidesin==0 || zoome==0) { *dx=0; *dy=0; return; }
sy = divscale14(divscale14(sy, m32_sidesin), zoome);
sx = divscale14(sx, zoome);
rotatepoint(0,0, sx,sy, -m32_sideang, dx,dy);
}
#endif
// invscreencoords with sx==0 and sy==getscreenvdisp(dz, zoom)
int32_t getinvdisplacement(int32_t *dx, int32_t *dy, int32_t dz)
{
if (m32_sidesin==0)
return 1;
dz = (((int64_t)dz * (int64_t)m32_sidecos)/(int64_t)m32_sidesin)>>4;
rotatepoint(0,0, 0,dz, -m32_sideang, dx,dy);
return 0;
}
// return vertical screen coordinate displacement for BUILD z coord
int32_t getscreenvdisp(int32_t bz, int32_t zoome)
{
return mulscale32(bz,zoome*m32_sidecos);
}
void setup_sideview_sincos()
{
if (m32_sideview)
{
m32_viewplane.x = 0;
m32_viewplane.y = -512;
m32_sidesin = sintable[m32_sideelev&2047];
m32_sidecos = sintable[(m32_sideelev+512)&2047];
rotatepoint(0,0, m32_viewplane.x,m32_viewplane.y, -m32_sideang, &m32_viewplane.x,&m32_viewplane.y);
m32_viewplane.x = mulscale14(m32_viewplane.x, m32_sidecos);
m32_viewplane.y = mulscale14(m32_viewplane.y, m32_sidecos);
m32_viewplane.z = m32_sidesin>>5;
}
}
static void sideview_getdist(int16_t sw, int16_t sect)
{
vec3_t *p;
vec3_t v;
if (sw<MAXWALLS)
{
v.x = (wall[sw].x + wall[wall[sw].point2].x)>>1;
v.y = (wall[sw].y + wall[wall[sw].point2].y)>>1;
v.z = getflorzofslope(sect, v.x, v.y);
p = &v;
}
else
p = (vec3_t *)&sprite[sw-MAXWALLS];
m32_sidedist[sw] = p->x*m32_viewplane.x + p->y*m32_viewplane.y + (p->z>>4)*m32_viewplane.z;
}
static int sideview_cmppoints(const int16_t *sw1, const int16_t *sw2)
{
int32_t dist1 = m32_sidedist[*sw1];
int32_t dist2 = m32_sidedist[*sw2];
if (dist2>dist1)
return 1;
else if (dist1>dist2)
return -1;
// if (*sw1<MAXWALLS && *sw2<MAXWALLS)
// return (wall[*sw2].nextwall>=0) - (wall[*sw1].nextwall>=0);
return 0;
}
//
// draw2dgrid
//
void draw2dgrid(int32_t posxe, int32_t posye, int32_t posze, int16_t cursectnum, int16_t ange, int32_t zoome, int16_t gride)
{
int64_t i, xp1, yp1, xp2=0, yp2, tempy;
UNREFERENCED_PARAMETER(ange);
if (gride <= 0)
return;
begindrawing(); //{{{
if (m32_sideview)
{
int32_t sx1,sy1, sx2,sy2, dx=0,dy=0;
int32_t xinc=0, yinc=2048>>gride, yofs;
// yofs = getscreenvdisp((yinc-posze)&((yinc<<4)-1), zoome);
if (cursectnum<0 || cursectnum>=numsectors)
yofs = getscreenvdisp(-posze, zoome);
else
yofs = getscreenvdisp(getflorzofslope(cursectnum, posxe,posye)-posze, zoome);
while (scalescreeny(mulscale14(yinc, zoome))==0 && gride>2)
{
gride--;
yinc = 2048>>gride;
}
xp2 = xp1 = ((posxe+(1024>>gride))&(((int64_t)(-1))<<(11-gride)));
yp2 = yp1 = ((posye+(1024>>gride))&(((int64_t)(-1))<<(11-gride)));
do
{
if (xinc==0)
{
screencoords(&sx1,&sy1, -editorgridextent-posxe,yp2-posye, zoome);
if (yp2 == yp1)
{
screencoords(&sx2,&sy2, editorgridextent-posxe,yp2-posye, zoome);
dx = sx2-sx1;
dy = sy2-sy1;
}
yp2 += yinc;
}
else // if (yinc==0)
{
screencoords(&sx1,&sy1, xp2-posxe, -editorgridextent-posye, zoome);
if (xp2 == xp1)
{
screencoords(&sx2,&sy2, xp2-posxe, editorgridextent-posye, zoome);
dx = sx2-sx1;
dy = sy2-sy1;
}
xp2 += xinc;
}
i = drawline16(halfxdim16+sx1,midydim16+sy1+yofs, halfxdim16+sx1+dx,midydim16+sy1+dy+yofs, whitecol-25);
if (i==0 || (xp2<-editorgridextent || xp2>editorgridextent ||
yp2<-editorgridextent || yp2>editorgridextent))
{
xp2 = xp1;
yp2 = yp1;
i = 1;
if (yinc>0)
yinc *= -1;
else if (yinc<0)
{
xinc = -yinc;
yinc = 0;
}
else if (xinc>0)
xinc *= -1;
else // if (xinc<0)
i = 0;
}
}
while (i);
}
else
{
// vertical lines
yp1 = midydim16-mulscale14(posye+editorgridextent,zoome);
if (yp1 < 0) yp1 = 0;
yp2 = midydim16-mulscale14(posye-editorgridextent,zoome);
if (yp2 >= ydim16) yp2 = ydim16-1;
if ((yp1 < ydim16) && (yp2 >= 0) && (yp2 >= yp1))
{
xp1 = halfxdim16-mulscale14(posxe+editorgridextent,zoome);
for (i=-editorgridextent; i<=editorgridextent; i+=(2048>>gride))
{
xp2 = xp1;
xp1 = halfxdim16-mulscale14(posxe-i,zoome);
if (xp1 >= xdim)
break;
if (xp1 >= 0)
{
if (xp1 != xp2)
drawline16(xp1,yp1,xp1,yp2,whitecol-25);
}
}
if (i >= editorgridextent && xp1 < xdim)
xp2 = xp1;
if (xp2 >= 0 && xp2 < xdim)
drawline16(xp2,yp1, xp2,yp2, whitecol-25);
}
// horizontal lines
xp1 = mulscale14(posxe+editorgridextent,zoome);
xp2 = mulscale14(posxe-editorgridextent,zoome);
tempy = 0x80000000l;
for (i=-editorgridextent; i<=editorgridextent; i+=(2048>>gride))
{
yp1 = ((posye-i)*zoome)>>14;
if (yp1 != tempy)
{
if ((yp1 > midydim16-ydim16) && (yp1 <= midydim16))
{
drawline16mid(-xp1,-yp1, -xp2,-yp1, whitecol-25);
tempy = yp1;
}
}
}
}
enddrawing(); //}}}
}
static void drawscreen_drawwall(int32_t i, int32_t posxe, int32_t posye, int32_t posze, int32_t zoome, int32_t grayp)
{
const walltype *wal = &wall[i];
int32_t sect=0, j, x1, y1, x2, y2, dz = 0, dz2 = 0;
int32_t fz=0,fzn=0;
// intptr_t tempint;
char col;
int64_t dist,dx,dy;
j = wal->nextwall;
#if 0
if (editstatus == 0)
{
if ((show2dwall[i>>3]&pow2char[i&7]) == 0) return;
if ((j >= 0) && (i > j))
if ((show2dwall[j>>3]&pow2char[j&7]) > 0) return;
}
else
#endif
{
if (!m32_sideview && !(grayp&2) && (j >= 0) && (i > j)) return;
}
if (grayp&1)
{
col = 8;
}
else if (j < 0)
{
col = 15;
if (i == linehighlight)
col = (totalclock & 16) ? 15 : 7;
}
else
{
col = 33;
if ((wal->cstat&1) != 0)
col = 5;
if (wal->nextwall >= 0 && ((wal->cstat^wall[j].cstat)&1))
col = 2;
if ((i == linehighlight) || ((linehighlight >= 0) && (i == wall[linehighlight].nextwall)))
if (totalclock & 16)
col += (2<<2);
}
screencoords(&x1,&y1, wal->x-posxe,wal->y-posye, zoome);
screencoords(&x2,&y2, wall[wal->point2].x-posxe,wall[wal->point2].y-posye, zoome);
dx = wal->x-wall[wal->point2].x;
dy = wal->y-wall[wal->point2].y;
dist = dx*dx+dy*dy;
if (dist > 0xffffffffll)
{
col=9;
if (i == linehighlight || ((linehighlight >= 0) && (i == wall[linehighlight].nextwall)))
if (totalclock & 16) col -= (2<<2);
}
else if (showfirstwall && searchsector>=0 && (sector[searchsector].wallptr == i ||
sector[searchsector].wallptr == wall[i].nextwall))
{
col = 14;
if (i == linehighlight) if (totalclock & 16) col -= (2<<2);
}
else if (circlewall >= 0 && (i == circlewall || wal->nextwall == circlewall))
col = 14;
if (m32_sideview)
{
// draw vertical line to neighboring wall
int32_t fz2;
sect = sectorofwall(i);
fz = getflorzofslope(sect, wal->x,wal->y);
fz2 = getflorzofslope(sect, wall[wal->point2].x,wall[wal->point2].y);
dz = getscreenvdisp(fz-posze,zoome);
dz2 = getscreenvdisp(fz2-posze,zoome);
y1 += dz;
y2 += dz2;
if (wal->nextwall>=0)
{
fzn = getflorzofslope(wal->nextsector, wal->x,wal->y);
// if (i < wall[j].point2)
drawline16mid(x1,y1, x1,y1+getscreenvdisp(fzn-fz,zoome), editorcolors[col]);
}
#ifdef YAX_ENABLE
{
int16_t nw = yax_getnextwall(i, YAX_CEILING);
if (nw >= 0)
{
int32_t odrawlinepat = drawlinepat;
fz2 = getflorzofslope(sectorofwall(nw), wall[nw].x,wall[nw].y);
drawlinepat = 0x11111111;
drawline16mid(x1,y1, x1,y1+getscreenvdisp(fz2-fz,zoome), editorcolors[col]);
drawlinepat = odrawlinepat;
}
}
#endif
m32_wallscreenxy[i][0] = halfxdim16+x1;
m32_wallscreenxy[i][1] = midydim16+y1;
}
if (wal->cstat&64) // if hitscan bit set
{
int32_t one=(klabs(x2-x1) >= klabs(y2-y1)), no=!one;
drawline16mid(x1+no,y1+one, x2+no,y2+one, editorcolors[col]);
drawline16mid(x1-no,y1-one, x2-no,y2-one, editorcolors[col]);
col += 8;
}
drawline16mid(x1,y1, x2,y2, editorcolors[col]);
if (showheightindicators && !m32_sideview)
{
int32_t dax,day, k=getangle(x1-x2, y1-y2); //+angofs;
screencoords(&dax,&day, ((wal->x+wall[wal->point2].x)>>1)-posxe,((wal->y+wall[wal->point2].y)>>1)-posye, zoome);
if (m32_sideview)
day += (dz2+dz)>>1;
if (wal->nextsector >= 0)
{
int32_t ii = sector[sectorofwall(i)].floorz;
int32_t jj = sector[wal->nextsector].floorz;
if (jj == ii && showheightindicators > 1)
{
int32_t dax3 = mulscale11(sintable[(k+1024)&2047],zoome) / 2560;
int32_t day3 = mulscale11(sintable[(k+512)&2047],zoome) / 2560;
int32_t dax2 = mulscale11(sintable[(k+2048)&2047],zoome) / 2560;
int32_t day2 = mulscale11(sintable[(k+1536)&2047],zoome) / 2560;
day2 = scalescreeny(day2);
day3 = scalescreeny(day3);
drawline16mid(dax+dax3,day+day3, dax+dax2,day+day2, editorcolors[col]);
}
else
{
int32_t bb = (jj < ii);
int32_t dax2 = mulscale11(sintable[(k+1024 + 1024*bb)&2047],zoome) / 2560;
int32_t day2 = mulscale11(sintable[(k+512 + 1024*bb)&2047],zoome) / 2560;
day2 = scalescreeny(day2);
drawline16mid(dax,day, dax+dax2,day+day2, editorcolors[col]);
}
}
else if (showheightindicators > 1)
{
int32_t dax2 = mulscale11(sintable[(k+2048)&2047],zoome) / 2560;
int32_t day2 = mulscale11(sintable[(k+1536)&2047],zoome) / 2560;
day2 = scalescreeny(day2);
drawline16mid(dax,day, dax+dax2,day+day2, editorcolors[col]);
}
}
if (zoome >= 256 && editstatus == 1)
if ((halfxdim16+x1 >= 2) && (halfxdim16+x1 <= xdim-3) &&
(midydim16+y1 >= 2) && (midydim16+y1 <= ydim16-3))
{
int32_t pointsize = 2;
if (i == pointhighlight || ((pointhighlight < MAXWALLS) && (pointhighlight >= 0) &&
(wall[i].x == wall[pointhighlight].x) && (wall[i].y == wall[pointhighlight].y)))
{
if (totalclock & 16)
pointsize++;
}
else //if (highlightcnt > 0)
{
if (show2dwall[i>>3]&pow2char[i&7])
{
if (totalclock & 16)
pointsize++;
}
}
col = 15;
if (m32_sideview)
{
if (wal->nextwall >= 0)
{
if (fz < fzn)
col = 7;
else if (fz == fzn)
col = 4;
}
}
// tempint = ((midydim16+y1)*bytesperline)+(halfxdim16+x1)+frameplace;
do
drawcircle16(halfxdim16+x1, midydim16+y1, pointsize--, 16384, editorcolors[col]);
while (pointsize);
}
}
static void drawscreen_drawsprite(int32_t j, int32_t posxe, int32_t posye, int32_t posze, int32_t zoome)
{
int32_t x1, y1, x2, y2;
char col;
int16_t hitblocking=(sprite[j].cstat&256), flooraligned=(sprite[j].cstat&32), wallaligned=(sprite[j].cstat&16);
int16_t angofs = m32_sideview ? m32_sideang : 0;
if (sprite[j].sectnum<0)
col = 4; // red
else
{
col = 3;
if (spritecol2d[sprite[j].picnum][0])
col = spritecol2d[sprite[j].picnum][0];
else if ((sprite[j].cstat&1) > 0)
{
col = 5;
if (spritecol2d[sprite[j].picnum][1])
col = spritecol2d[sprite[j].picnum][1];
}
}
if (editstatus == 1)
{
if ((pointhighlight) >= 16384 && (j+16384 == pointhighlight ||
(!m32_sideview && ((sprite[j].x == sprite[pointhighlight-16384].x) &&
(sprite[j].y == sprite[pointhighlight-16384].y)))))
{
if (totalclock & 32) col += 8;
}
else // if (highlightcnt > 0)
{
if (show2dsprite[j>>3]&pow2char[j&7])
if (totalclock & 32) col += 8;
}
}
screencoords(&x1,&y1, sprite[j].x-posxe,sprite[j].y-posye, zoome);
// tempint = ((midydim16+y1)*bytesperline)+(halfxdim16+x1)+frameplace;
if (m32_sideview)
y1 += getscreenvdisp(sprite[j].z-posze,zoome);
if ((halfxdim16+x1 >= 0) && (halfxdim16+x1 < xdim) &&
(midydim16+y1 >= 0) && (midydim16+y1 < ydim16))
{
drawcircle16(halfxdim16+x1, midydim16+y1, 4, 16384, editorcolors[col]);
x2 = mulscale11(sintable[(sprite[j].ang+angofs+2560)&2047],zoome) / 768;
y2 = mulscale11(sintable[(sprite[j].ang+angofs+2048)&2047],zoome) / 768;
y2 = scalescreeny(y2);
drawline16mid(x1,y1, x1+x2,y1+y2, editorcolors[col]);
if (hitblocking)
{
drawline16mid(x1,y1+1, x1+x2,y1+y2+1, editorcolors[col]);
drawline16mid(x1,y1-1, x1+x2,y1+y2-1, editorcolors[col]);
drawline16mid(x1-1,y1, x1+x2-1,y1+y2, editorcolors[col]);
drawline16mid(x1+1,y1, x1+x2+1,y1+y2, editorcolors[col]);
}
if (flooraligned)
{
int32_t fx = mulscale10(mulscale6(tilesizx[sprite[j].picnum], sprite[j].xrepeat),zoome) >> 1;
int32_t fy = mulscale10(mulscale6(tilesizy[sprite[j].picnum], sprite[j].yrepeat),zoome) >> 1;
int32_t co[4][2], ii, in;
int32_t sinang = sintable[(sprite[j].ang+angofs+1536)&2047];
int32_t cosang = sintable[(sprite[j].ang+angofs+1024)&2047];
int32_t r,s;
co[0][0] = co[3][0] = -fx;
co[0][1] = co[1][1] = -fy;
co[1][0] = co[2][0] = fx;
co[2][1] = co[3][1] = fy;
for (ii=3; ii>=0; ii--)
{
r = mulscale14(cosang,co[ii][0]) - mulscale14(sinang,co[ii][1]);
s = mulscale14(sinang,co[ii][0]) + mulscale14(cosang,co[ii][1]);
s = scalescreeny(s);
co[ii][0] = r;
co[ii][1] = s;
}
drawlinepat = 0xcfcfcfcf;
for (ii=3; ii>=0; ii--)
{
in = (ii+1)&3;
drawline16mid(x1+co[ii][0], y1-co[ii][1], x1+co[in][0], y1-co[in][1], editorcolors[col]);
if (hitblocking)
{
drawline16mid(x1+co[ii][0], y1-co[ii][1]+1, x1+co[in][0], y1-co[in][1]+1, editorcolors[col]);
drawline16mid(x1+co[ii][0], y1-co[ii][1]-1, x1+co[in][0], y1-co[in][1]-1, editorcolors[col]);
drawline16mid(x1+co[ii][0]+1, y1-co[ii][1], x1+co[in][0]+1, y1-co[in][1], editorcolors[col]);
drawline16mid(x1+co[ii][0]-1, y1-co[ii][1], x1+co[in][0]-1, y1-co[in][1], editorcolors[col]);
}
drawline16mid(x1, y1, x1 + co[in][0], y1 - co[in][1], editorcolors[col]);
}
drawlinepat = 0xffffffff;
}
else if (wallaligned)
{
int32_t fx = mulscale6(tilesizx[sprite[j].picnum], sprite[j].xrepeat);
int32_t one=(((sprite[j].ang+angofs+256)&512) == 0), no=!one;
x2 = mulscale11(sintable[(sprite[j].ang+angofs+2560)&2047],zoome) / 6144;
y2 = mulscale11(sintable[(sprite[j].ang+angofs+2048)&2047],zoome) / 6144;
y2 = scalescreeny(y2);
drawline16mid(x1,y1, x1+x2,y1+y2, editorcolors[col]);
if (!(sprite[j].cstat&64)) // not 1-sided
{
drawline16mid(x1,y1, x1-x2,y1-y2, editorcolors[col]);
if (hitblocking)
{
drawline16mid(x1-no,y1-one, x1-x2-no,y1-y2-one, editorcolors[col]);
drawline16mid(x1+no,y1+one, x1-x2+no,y1-y2+one, editorcolors[col]);
}
}
if (hitblocking)
{
drawline16mid(x1-no,y1-one, x1+x2-no,y1+y2-one, editorcolors[col]);
drawline16mid(x1+no,y1+one, x1+x2+no,y1+y2+one, editorcolors[col]);
}
x2 = mulscale13(sintable[(sprite[j].ang+angofs+1024)&2047],zoome) * fx / 4096;
y2 = mulscale13(sintable[(sprite[j].ang+angofs+512)&2047],zoome) * fx / 4096;
y2 = scalescreeny(y2);
drawline16mid(x1,y1, x1-x2,y1-y2, editorcolors[col]);
drawline16mid(x1,y1, x1+x2,y1+y2, editorcolors[col]);
if (hitblocking)
{
drawline16mid(x1+1,y1, x1+x2+1,y1+y2, editorcolors[col]);
drawline16mid(x1-1,y1, x1-x2-1,y1-y2, editorcolors[col]);
drawline16mid(x1-1,y1, x1+x2-1,y1+y2, editorcolors[col]);
drawline16mid(x1+1,y1, x1-x2+1,y1-y2, editorcolors[col]);
drawline16mid(x1,y1-1, x1+x2,y1+y2-1, editorcolors[col]);
drawline16mid(x1,y1+1, x1-x2,y1-y2+1, editorcolors[col]);
drawline16mid(x1,y1+1, x1+x2,y1+y2+1, editorcolors[col]);
drawline16mid(x1,y1-1, x1-x2,y1-y2-1, editorcolors[col]);
}
}
}
}
//
// draw2dscreen
//
void draw2dscreen(const vec3_t *pos, int16_t cursectnum, int16_t ange, int32_t zoome, int16_t gride)
{
int32_t i, j, x1, y1;
int16_t angofs = m32_sideview ? m32_sideang : 0;
int32_t posxe=pos->x, posye=pos->y, posze=pos->z;
uint8_t *graybitmap = (uint8_t *)tempbuf;
int32_t alwaysshowgray = (showinnergray || !(editorzrange[0]==INT32_MIN && editorzrange[1]==INT32_MAX));
if (qsetmode == 200) return;
setup_sideview_sincos();
begindrawing(); //{{{
if (editstatus == 0)
{
// faketimerhandler();
clear2dscreen();
// faketimerhandler();
draw2dgrid(posxe,posye,posze,cursectnum,ange,zoome,gride);
}
faketimerhandler();
m32_swcnt = 0;
if (numgraysects==0)
Bmemset(graybitmap, 0, (numwalls+7)>>3);
else
{
for (i=0; i<numwalls; i++)
{
j = wall[i].nextwall;
if ((graywallbitmap[i>>3]&(1<<(i&7))) && (j < 0 || (graywallbitmap[j>>3]&(1<<(j&7)))))
graybitmap[i>>3] |= (1<<(i&7));
else
graybitmap[i>>3] &= ~(1<<(i&7));
}
}
if (!m32_sideview)
{
#ifndef YAX_ENABLE
for (i=numwalls-1; i>=0; i--)
drawscreen_drawwall(i,posxe,posye,posze,zoome, 0);
#else
if (alwaysshowgray)
for (i=numwalls-1; i>=0; i--)
if (graybitmap[i>>3]&(1<<(i&7)))
drawscreen_drawwall(i,posxe,posye,posze,zoome, 1+2);
for (i=numwalls-1; i>=0; i--)
if ((graybitmap[i>>3]&(1<<(i&7)))==0)
drawscreen_drawwall(i,posxe,posye,posze,zoome, 2);
#endif
}
else
{
for (i=0; i<numsectors; i++)
for (j=sector[i].wallptr; j<sector[i].wallptr+sector[i].wallnum; j++)
{
m32_wallsprite[m32_swcnt++] = j;
sideview_getdist(j, i);
}
/*
// j = sector[numsectors-1].wallptr + sector[numsectors-1].wallnum
for (; j<numwalls; j++) // new walls ...
{
m32_wallsprite[m32_swcnt++] = j;
m32_sidedist[j] = sideview_getdist(j, 0);
}
*/
}
faketimerhandler();
if (zoome >= 256 || highlightcnt>0)
for (j=0; j<MAXSPRITES; j++)
if (sprite[j].statnum<MAXSTATUS)
{
// if sprite is highlighted, always draw it
if ((show2dsprite[j>>3]&pow2char[j&7])==0)
{
if (!m32_sideview && sprite[j].sectnum >= 0)
YAX_SKIPSECTOR(sprite[j].sectnum);
if (zoome<256)
continue;
}
if (!m32_sideview)
drawscreen_drawsprite(j,posxe,posye,posze,zoome);
else
{
m32_wallsprite[m32_swcnt++] = MAXWALLS+j;
sideview_getdist(MAXWALLS+j, -1);
}
}
faketimerhandler();
if (m32_sideview)
{
qsort(m32_wallsprite, m32_swcnt, sizeof(int16_t), (int( *)(const void *, const void *))&sideview_cmppoints);
for (i=0; i<m32_swcnt; i++) // shouldn't it go the other way around?
{
j = m32_wallsprite[i];
if (j<MAXWALLS)
{
if (alwaysshowgray || !(graybitmap[j>>3]&(1<<(j&7))))
drawscreen_drawwall(j,posxe,posye,posze,zoome,!!(graybitmap[j>>3]&(1<<(j&7))));
}
else
{
if (!alwaysshowgray && sprite[j-MAXWALLS].sectnum>=0)
YAX_SKIPSECTOR(sprite[j-MAXWALLS].sectnum);
drawscreen_drawsprite(j-MAXWALLS,posxe,posye,posze,zoome);
}
}
faketimerhandler();
}
#if 0
{
int32_t xx,yy,xx2,yy2;
screencoords(&xx,&yy, -posxe,-posye, zoome);
screencoords(&xx2,&yy2, (m32_viewplane.x)-posxe,(m32_viewplane.y)-posye, zoome);
if (m32_sideview)
yy2 += getscreenvdisp((m32_viewplane.z<<4)-posze, zoome);
drawcircle16(halfxdim16+xx, midydim16+yy, 2, 16384, editorcolors[4]); //red
drawcircle16(halfxdim16+xx2, midydim16+yy2, 2, 16384, editorcolors[14]); //yellow
drawline16mid(xx,yy, xx2,yy2, editorcolors[15]);
}
#endif
x1 = mulscale11(sintable[(ange+angofs+2560)&2047],zoome) / 768; //Draw white arrow
y1 = mulscale11(sintable[(ange+angofs+2048)&2047],zoome) / 768;
i = scalescreeny(x1);
j = scalescreeny(y1);
drawline16mid(x1,j, -x1,-j, editorcolors[15]);
drawline16mid(x1,j, +y1,-i, editorcolors[15]);
drawline16mid(x1,j, -y1,+i, editorcolors[15]);
enddrawing(); //}}}
}
//
// printext16
//
int32_t printext16(int32_t xpos, int32_t ypos, int16_t col, int16_t backcol, const char *name, char fontsize)
{
int32_t stx, i, x, y, charxsiz, ocol = col, obackcol = backcol;
int32_t ymin=0, ymax=7;
char *fontptr, *letptr, *ptr;
char smallbuf[4];
stx = xpos;
if (ypos<0)
{
ymin = 0-ypos;
if (ymin>7)
return 0;
}
else if (ypos+7 >= ydim)
{
ymax = ydim-ypos-1;
if (ymax<0)
return 0;
}
if (fontsize & 2) printext16(xpos+1, ypos+1, 0, -1, name, (fontsize & ~2) | 4);
if (fontsize & 1) { fontptr = smalltextfont; charxsiz = 4; }
else { fontptr = textfont; charxsiz = 8; }
begindrawing(); //{{{
for (i=0; name[i]; i++)
{
if (name[i] == '^')
{
i++;
if (name[i] == 'O') // ^O resets formatting
{
if (fontsize & 4) continue;
col = ocol;
backcol = obackcol;
continue;
}
if (isdigit(name[i]))
{
if (isdigit(name[i+1]))
{
if (isdigit(name[i+2]))
{
Bmemcpy(&smallbuf[0],&name[i],3);
i += 2;
smallbuf[3] = '\0';
}
else
{
Bmemcpy(&smallbuf[0],&name[i],2);
i++;
smallbuf[2] = '\0';
}
}
else
{
smallbuf[0] = name[i];
smallbuf[1] = '\0';
}
if (!(fontsize & 4))
col = editorcolors[atol(smallbuf)];
if (name[i+1] == ',' && isdigit(name[i+2]))
{
i+=2;
if (isdigit(name[i+1]))
{
if (isdigit(name[i+2]))
{
Bmemcpy(&smallbuf[0],&name[i],3);
i += 2;
smallbuf[3] = '\0';
}
else
{
Bmemcpy(&smallbuf[0],&name[i],2);
i++;
smallbuf[2] = '\0';
}
}
else
{
smallbuf[0] = name[i];
smallbuf[1] = '\0';
}
if (!(fontsize & 4))
backcol = editorcolors[atol(smallbuf)];
}
continue;
}
}
if (stx<0)
{
stx += charxsiz;
continue;
}
letptr = &fontptr[name[i]<<3];
ptr = (char *)(bytesperline*ypos + (stx-(fontsize&1)) + frameplace);
for (y=ymin; y<=ymax; y++)
{
for (x=0; x<charxsiz; x++)
{
if (stx+x >= xdim)
break;
if (letptr[y]&pow2char[7-(fontsize&1)-x])
ptr[x] = (uint8_t)col;
else if (backcol >= 0)
ptr[x] = (uint8_t)backcol;
}
ptr += bytesperline;
}
stx += charxsiz;
if (stx >= xdim)
break;
}
enddrawing(); //}}}
return stx;
}
//
// printext256
//
void printext256(int32_t xpos, int32_t ypos, int16_t col, int16_t backcol, const char *name, char fontsize)
{
int32_t stx, i, x, y, charxsiz;
char *fontptr, *letptr, *ptr;
stx = xpos;
if (fontsize) { fontptr = smalltextfont; charxsiz = 4; }
else { fontptr = textfont; charxsiz = 8; }
#ifdef USE_OPENGL
if (!polymost_printext256(xpos,ypos,col,backcol,name,fontsize)) return;
if (rendmode >= 3 && qsetmode == 200)
{
int32_t xx, yy;
int32_t lc=-1;
palette_t p=getpal(col), b=getpal(backcol);
setpolymost2dview();
bglDisable(GL_ALPHA_TEST);
bglDepthMask(GL_FALSE); // disable writing to the z-buffer
bglBegin(GL_POINTS);
for (i=0; name[i]; i++)
{
if (name[i] == '^' && isdigit(name[i+1]))
{
char smallbuf[8];
int32_t bi=0;
while (isdigit(name[i+1]) && bi<8)
{
smallbuf[bi++]=name[i+1];
i++;
}
smallbuf[bi++]=0;
if (col)
col = atol(smallbuf);
p = getpal(col);
continue;
}
letptr = &fontptr[name[i]<<3];
xx = stx-fontsize;
yy = ypos+7 + 2; //+1 is hack!
for (y=7; y>=0; y--)
{
for (x=charxsiz-1; x>=0; x--)
{
if (letptr[y]&pow2char[7-fontsize-x])
{
if (lc!=col)
bglColor4ub(p.r,p.g,p.b,255);
lc = col;
bglVertex2i(xx+x,yy);
}
else if (backcol >= 0)
{
if (lc!=backcol)
bglColor4ub(b.r,b.g,b.b,255);
lc = backcol;
bglVertex2i(xx+x,yy);
}
}
yy--;
}
stx += charxsiz;
}
bglEnd();
bglDepthMask(GL_TRUE); // re-enable writing to the z-buffer
return;
}
#endif
begindrawing(); //{{{
for (i=0; name[i]; i++)
{
if (name[i] == '^' && isdigit(name[i+1]))
{
char smallbuf[8];
int32_t bi=0;
while (isdigit(name[i+1]) && bi<8)
{
smallbuf[bi++]=name[i+1];
i++;
}
smallbuf[bi++]=0;
if (col)col = atol(smallbuf);
continue;
}
letptr = &fontptr[name[i]<<3];
ptr = (char *)(ylookup[ypos+7]+(stx-fontsize)+frameplace);
for (y=7; y>=0; y--)
{
for (x=charxsiz-1; x>=0; x--)
{
if (letptr[y]&pow2char[7-fontsize-x])
ptr[x] = (uint8_t)col;
else if (backcol >= 0)
ptr[x] = (uint8_t)backcol;
}
ptr -= ylookup[1];
}
stx += charxsiz;
}
enddrawing(); //}}}
}
//
// screencapture
//
static int32_t screencapture_common1(char *fn, const char *ext, BFILE** filptr)
{
int32_t i;
do // JBF 2004022: So we don't overwrite existing screenshots
{
if (capturecount > 9999) return -1;
i = Bstrrchr(fn,'.')-fn-4;
fn[i++] = ((capturecount/1000)%10)+48;
fn[i++] = ((capturecount/100)%10)+48;
fn[i++] = ((capturecount/10)%10)+48;
fn[i++] = (capturecount%10)+48;
i++;
Bstrcpy(&fn[i], ext);
if ((*filptr = Bfopen(fn,"rb")) == NULL) break;
Bfclose(*filptr);
capturecount++;
}
while (1);
*filptr = Bfopen(fn,"wb");
if (*filptr == NULL)
return -1;
return 0;
}
#ifdef USE_LIBPNG
// PNG screenshots -- adapted from libpng example.c
static int32_t screencapture_png(const char *filename, char inverseit, const char *versionstr)
{
int32_t i;
BFILE *fp;
# ifdef USE_OPENGL
# define HICOLOR (rendmode>=3 && qsetmode==200)
# else
# define HICOLOR 0
# endif
png_structp png_ptr;
png_infop info_ptr;
png_colorp palette = NULL;
png_textp text = NULL;
png_bytep buf = NULL;
png_bytepp rowptrs = NULL;
char fn[32]; // careful...
Bstrcpy(fn, filename);
i = screencapture_common1(fn, "png", &fp);
if (i)
return i;
/* Create and initialize the png_struct with default error handling. */
# ifndef NEDMALLOC
png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
# else
png_ptr = png_create_write_struct_2(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL, Bmalloc, Bfree);
# endif
if (png_ptr == NULL)
{
Bfclose(fp);
return -1;
}
/* Allocate/initialize the image information data. */
info_ptr = png_create_info_struct(png_ptr);
if (info_ptr == NULL)
{
Bfclose(fp);
png_destroy_write_struct(&png_ptr, NULL);
return -1;
}
/* Set error handling. */
if (setjmp(png_jmpbuf(png_ptr)))
{
/* If we get here, we had a problem writing the file */
Bfclose(fp);
if (palette) png_free(png_ptr, palette);
if (text) png_free(png_ptr, text);
if (buf) png_free(png_ptr, buf);
if (rowptrs) png_free(png_ptr, rowptrs);
png_destroy_write_struct(&png_ptr, &info_ptr);
return -1;
}
png_init_io(png_ptr, fp);
// initialize various info fields from here on
png_set_IHDR(png_ptr, info_ptr, xdim, ydim, 8,
HICOLOR ? PNG_COLOR_TYPE_RGB : PNG_COLOR_TYPE_PALETTE,
PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
if (HICOLOR && editstatus==0)
png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE, PNG_FILTER_VALUE_NONE);
if (!HICOLOR)
palette = (png_colorp)png_malloc(png_ptr, 256*png_sizeof(png_color));
if (palette)
{
for (i=0; i<256; i++)
{
palette[i].red = inverseit ? 255-curpalettefaded[i].r : curpalettefaded[i].r;
palette[i].green = inverseit ? 255-curpalettefaded[i].g : curpalettefaded[i].g;
palette[i].blue = inverseit ? 255-curpalettefaded[i].b : curpalettefaded[i].b;
}
png_set_PLTE(png_ptr, info_ptr, palette, 256);
}
png_set_gAMA(png_ptr, info_ptr, vid_gamma); // 1.0/vid_gamma ?
// png_set_sRGB(png_ptr, info_ptr, PNG_sRGB_INTENT_SATURATION); // hm...
text = (png_textp)png_malloc(png_ptr, 2*png_sizeof(png_text));
text[0].compression = PNG_TEXT_COMPRESSION_NONE;
text[0].key = "Title";
text[0].text = editstatus ? "Mapster32 screenshot" : "EDuke32 screenshot";
text[1].compression = PNG_TEXT_COMPRESSION_NONE;
text[1].key = "Software";
text[1].text = (char *)versionstr;
png_set_text(png_ptr, info_ptr, text, 2);
// get/set the pixel data
begindrawing(); //{{{
if (palette)
{
buf = (png_bytep)png_malloc(png_ptr, xdim*ydim);
Bmemcpy(buf, (char *)frameplace, xdim*ydim);
}
# ifdef USE_OPENGL
else
{
buf = (png_bytep)png_malloc(png_ptr, xdim*ydim*3);
bglReadPixels(0,0,xdim,ydim,GL_RGB,GL_UNSIGNED_BYTE,buf);
}
# endif
enddrawing(); //}}}
rowptrs = (png_bytepp)png_malloc(png_ptr, ydim*sizeof(png_bytep));
if (!palette)
{
int32_t k = xdim*(1+2*!palette);
for (i=0; i<ydim; i++)
rowptrs[i] = &buf[k*(ydim-i-1)];
}
else
{
for (i=0; i<ydim; i++)
rowptrs[i] = &buf[xdim*i];
}
png_set_rows(png_ptr, info_ptr, rowptrs);
// write the png file!
png_write_png(png_ptr, info_ptr, PNG_TRANSFORM_IDENTITY, NULL);
Bfclose(fp);
if (palette) png_free(png_ptr, palette);
if (text) png_free(png_ptr, text);
if (buf) png_free(png_ptr, buf);
if (rowptrs) png_free(png_ptr, rowptrs);
png_destroy_write_struct(&png_ptr, &info_ptr);
OSD_Printf("Saved screenshot to %s\n", fn);
capturecount++;
return 0;
}
# undef HICOLOR
#else // if !defined USE_LIBPNG
static int32_t screencapture_tga(const char *filename, char inverseit)
{
int32_t i,j;
char *ptr, head[18] = { 0,1,1,0,0,0,1,24,0,0,0,0,0/*wlo*/,0/*whi*/,0/*hlo*/,0/*hhi*/,8,0 };
//char palette[4*256];
char *fn = Bstrdup(filename), *inversebuf;
BFILE *fil;
i = screencapture_common1(fn, "tga", &fil);
if (i)
{
Bfree(fn);
return i;
}
# ifdef USE_OPENGL
if (rendmode >= 3 && qsetmode == 200)
{
head[1] = 0; // no colourmap
head[2] = 2; // uncompressed truecolour
head[3] = 0; // (low) first colourmap index
head[4] = 0; // (high) first colourmap index
head[5] = 0; // (low) number colourmap entries
head[6] = 0; // (high) number colourmap entries
head[7] = 0; // colourmap entry size
head[16] = 24; // 24 bits per pixel
}
# endif
head[12] = xdim & 0xff;
head[13] = (xdim >> 8) & 0xff;
head[14] = ydim & 0xff;
head[15] = (ydim >> 8) & 0xff;
Bfwrite(head, 18, 1, fil);
begindrawing(); //{{{
ptr = (char *)frameplace;
// palette first
# ifdef USE_OPENGL
if (rendmode < 3 || (rendmode >= 3 && qsetmode != 200))
# endif
{
//getpalette(0,256,palette);
for (i=0; i<256; i++)
{
Bfputc(inverseit ? 255-curpalettefaded[i].b : curpalettefaded[i].b, fil); // b
Bfputc(inverseit ? 255-curpalettefaded[i].g : curpalettefaded[i].g, fil); // g
Bfputc(inverseit ? 255-curpalettefaded[i].r : curpalettefaded[i].r, fil); // r
}
}
# ifdef USE_OPENGL
if (rendmode >= 3 && qsetmode == 200)
{
char c;
// 24bit
inversebuf = (char *)Bmalloc(xdim*ydim*3);
if (inversebuf)
{
bglReadPixels(0,0,xdim,ydim,GL_RGB,GL_UNSIGNED_BYTE,inversebuf);
j = xdim*ydim*3;
for (i=0; i<j; i+=3)
{
c = inversebuf[i];
inversebuf[i] = inversebuf[i+2];
inversebuf[i+2] = c;
}
Bfwrite(inversebuf, xdim*ydim, 3, fil);
Bfree(inversebuf);
}
}
else
# endif
{
for (i=ydim-1; i>=0; i--)
Bfwrite(ptr+i*bytesperline, xdim, 1, fil);
}
enddrawing(); //}}}
Bfclose(fil);
OSD_Printf("Saved screenshot to %s\n", fn);
Bfree(fn);
capturecount++;
return(0);
}
# endif
int32_t screencapture(const char *filename, char inverseit, const char *versionstr)
{
#ifndef USE_LIBPNG
UNREFERENCED_PARAMETER(versionstr);
return screencapture_tga(filename,inverseit);
#else
return screencapture_png(filename,inverseit,versionstr);
#endif
}
//
// setrendermode
//
int32_t setrendermode(int32_t renderer)
{
UNREFERENCED_PARAMETER(renderer);
#ifdef USE_OPENGL
if (bpp == 8) renderer = 0;
# ifdef POLYMER
else renderer = min(4,max(3,renderer));
if (renderer == 4)
{
int32_t i;
// potentially deferred MD3 postprocessing
for (i=0; i<nextmodelid; i++)
{
if (models[i]->mdnum==3 && ((md3model_t *)models[i])->head.surfs[0].geometry == NULL)
{
static int32_t warned=0;
if (!warned)
{
OSD_Printf("Post-processing MD3 models for Polymer. This can take a while...\n");
nextpage();
warned = 1;
}
if (!md3postload_polymer((md3model_t *)models[i]))
OSD_Printf("INTERNAL ERROR: mdmodel %s failed postprocessing!\n",
((md3model_t *)models[i])->head.nam);
if (((md3model_t *)models[i])->head.surfs[0].geometry == NULL)
OSD_Printf("INTERNAL ERROR: wtf?\n");
}
// else
// OSD_Printf("mdmodel %d already postprocessed.\n", i);
}
if (!polymer_init())
renderer = 3;
}
else if (rendmode==4) // going from Polymer to another renderer
{
delete_maphack_lights();
G_Polymer_UnInit();
polymer_uninit();
}
# else
else renderer = 3;
# endif
rendmode = renderer;
if (rendmode >= 3)
glrendmode = rendmode;
#endif
return 0;
}
//
// setrollangle
//
#ifdef USE_OPENGL
void setrollangle(int32_t rolla)
{
UNREFERENCED_PARAMETER(rolla);
if (rolla == 0) gtang = 0.0;
else gtang = PI * (double)rolla / 1024.0;
}
#endif
//
// invalidatetile
// pal: pass -1 to invalidate all palettes for the tile, or >=0 for a particular palette
// how: pass -1 to invalidate all instances of the tile in texture memory, or a bitfield
// bit 0: opaque or masked (non-translucent) texture, using repeating
// bit 1: ignored
// bit 2: ignored (33% translucence, using repeating)
// bit 3: ignored (67% translucence, using repeating)
// bit 4: opaque or masked (non-translucent) texture, using clamping
// bit 5: ignored
// bit 6: ignored (33% translucence, using clamping)
// bit 7: ignored (67% translucence, using clamping)
// clamping is for sprites, repeating is for walls
//
void invalidatetile(int16_t tilenume, int32_t pal, int32_t how)
{
#ifdef USE_OPENGL
int32_t numpal, firstpal, np;
int32_t hp;
if (rendmode < 3) return;
if (pal < 0)
{
numpal = MAXPALOOKUPS;
firstpal = 0;
}
else
{
numpal = 1;
firstpal = pal % MAXPALOOKUPS;
}
for (hp = 0; hp < 8; hp+=4)
{
if (!(how & pow2long[hp])) continue;
for (np = firstpal; np < firstpal+numpal; np++)
{
gltexinvalidate(tilenume, np, hp);
}
}
#endif
UNREFERENCED_PARAMETER(tilenume);
UNREFERENCED_PARAMETER(pal);
UNREFERENCED_PARAMETER(how);
}
//
// setpolymost2dview
// Sets OpenGL for 2D drawing
//
void setpolymost2dview(void)
{
#ifdef USE_OPENGL
if (rendmode < 3) return;
if (gloy1 != -1)
{
bglViewport(0,0,xres,yres);
bglMatrixMode(GL_PROJECTION);
bglLoadIdentity();
bglOrtho(0,xres,yres,0,-1,1);
bglMatrixMode(GL_MODELVIEW);
bglLoadIdentity();
}
gloy1 = -1;
bglDisable(GL_DEPTH_TEST);
bglDisable(GL_TEXTURE_2D);
bglDisable(GL_BLEND);
#endif
}
void hash_init(hashtable_t *t)
{
hash_free(t);
t->items=Bcalloc(1, t->size * sizeof(hashitem_t));
}
void hash_free(hashtable_t *t)
{
hashitem_t *cur, *tmp;
int32_t i;
int32_t num;
if (t->items == NULL)
return;
// initprintf("*free, num:%d\n",t->size);
i= t->size-1;
do
{
cur = t->items[i];
num = 0;
while (cur)
{
tmp = cur;
cur = cur->next;
// initprintf("Free %4d '%s'\n",tmp->key,(tmp->string)?tmp->string:".");
if (tmp->string)
{
Bfree(tmp->string);
tmp->string = NULL;
}
Bfree(tmp);
num++;
}
// initprintf("#%4d: %3d\t",i,num);
}
while (--i > -1);
Bfree(t->items);
t->items = 0;
}
// djb3 algorithm
static inline uint32_t hash_getcode(const char *s)
{
uint32_t h = 5381;
int32_t ch;
while ((ch = *s++) != '\0')
h = ((h << 5) + h) ^ ch;
return h;
}
void hash_add(hashtable_t *t, const char *s, int32_t key, int32_t replace)
{
hashitem_t *cur, *prev=NULL;
int32_t code;
if (t->items == NULL)
{
initprintf("hash_add(): table not initialized!\n");
return;
}
code = hash_getcode(s) % t->size;
cur = t->items[code];
if (!cur)
{
cur = (hashitem_t *)Bcalloc(1,sizeof(hashitem_t));
cur->string = Bstrdup(s);
cur->key = key;
cur->next = NULL;
t->items[code] = cur;
return;
}
do
{
if (Bstrcmp(s,cur->string) == 0)
{
if (replace) cur->key = key;
return;
}
prev = cur;
}
while ((cur = cur->next));
cur = (hashitem_t *)Bcalloc(1,sizeof(hashitem_t));
cur->string = Bstrdup(s);
cur->key = key;
cur->next = NULL;
prev->next = cur;
}
// delete at most once
void hash_delete(hashtable_t *t, const char *s)
{
hashitem_t *cur, *prev=NULL;
int32_t code;
if (t->items == NULL)
{
initprintf("hash_delete(): table not initialized!\n");
return;
}
code = hash_getcode(s) % t->size;
cur = t->items[code];
if (!cur)
return;
do
{
if (Bstrcmp(s,cur->string) == 0)
{
Bfree(cur->string);
if (!prev)
t->items[code] = cur->next;
else
prev->next = cur->next;
Bfree(cur);
return;
}
prev = cur;
}
while ((cur = cur->next));
}
int32_t hash_find(const hashtable_t *t, const char *s)
{
hashitem_t *cur;
if (t->items == NULL)
{
initprintf("hash_find(): table not initialized!\n");
return -1;
}
if ((cur = t->items[hash_getcode(s) % t->size]) == NULL) return -1;
do
if (Bstrcmp(s,cur->string) == 0)
return cur->key;
while ((cur = cur->next));
return -1;
}
int32_t hash_findcase(const hashtable_t *t, const char *s)
{
hashitem_t *cur;
if (t->items == NULL)
{
initprintf("hash_findcase(): table not initialized!\n");
return -1;
}
if ((cur=t->items[hash_getcode(s)%t->size]) == NULL) return -1;
do
if (Bstrcasecmp(s,cur->string) == 0)
return cur->key;
while ((cur=cur->next));
return -1;
}
/*
* vim:ts=8:
*/
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