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raze/polymer/eduke32/build/src/engine.c

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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 POLYMOST
//#define SUPERBUILD
#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 POLYMOST
# ifdef USE_OPENGL
# include "glbuild.h"
# include "mdsprite.h"
# ifdef POLYMER
# include "polymer.h"
# endif
# endif
# include "hightile.h"
# include "polymost.h"
# ifdef _WIN32
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# endif
#endif
#include <math.h>
#include "engine_priv.h"
#define CACHEAGETIME 16
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
}
#ifdef SUPERBUILD
void loadvoxel(int32_t voxindex) { voxindex=0; }
int32_t tiletovox[MAXTILES];
int32_t usevoxels = 1;
#define kloadvoxel loadvoxel
int32_t novoxmips = 0;
int32_t editorgridextent = 131072;
//These variables need to be copied into BUILD
#define MAXXSIZ 256
#define MAXYSIZ 256
#define MAXZSIZ 255
#define MAXVOXMIPS 5
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];
#endif
static intptr_t *lookups = NULL;
static char lookupsalloctype = 255;
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 = 0, 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;
intptr_t slopalookup[16384]; // was 2048
#if defined(USE_OPENGL)
palette_t palookupfog[MAXPALOOKUPS];
#endif
static char permanentlock = 255;
int32_t artversion, mapversion=7L; // JBF 20040211: default mapversion to 7
void *pic = NULL;
char picsiz[MAXTILES], tilefilenum[MAXTILES];
int32_t lastageclock;
int32_t tilefileoffs[MAXTILES];
int32_t artsize = 0, cachesize = 0;
// unlikely to occur, but .art files with less than 256 tiles are certainly possible
// this would be 60 (MAXTILES/256) if we just assumed there were 256 tiles per .art as in Duke
char *artptrs[256];
static int16_t radarang2[MAXXDIM];
static uint16_t sqrtable[4096], 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
////////// 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;
int16_t *m32_wallsprite; // [MAXSWALLS+MAXSPRITES]
static int32_t *m32_sidedist; // [MAXSWALLS+MAXSPRITES]
static vec3_t m32_viewplane;
////// sector-like clipping for sprites //////
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;
// 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;
}
////// //////
int32_t checksectorpointer(int16_t i, int16_t sectnum)
{
int32_t j, k, startwall, endwall, x1, y1, x2, y2, numnewwalls=0;
#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;
if (wall[i].nextwall >= 0) //Check for early exit
{
k = wall[i].nextwall;
if (wall[k].x == x2 && wall[k].y == y2)
if ((wall[wall[k].point2]).x == x1 && (wall[wall[k].point2]).y == y1)
return(0);
}
wall[i].nextsector = -1;
wall[i].nextwall = -1;
for (j=0; j<numsectors; j++)
{
startwall = sector[j].wallptr;
endwall = startwall + sector[j].wallnum - 1;
for (k=startwall; k<=endwall; k++)
{
if (wall[k].x == x2 && wall[k].y == y2)
if ((wall[wall[k].point2]).x == x1 && (wall[wall[k].point2]).y == y1)
if (j != sectnum)
{
// 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;
if (sectnum != -2) // -2 means dry run
{
wall[i].nextsector = j;
wall[i].nextwall = k;
wall[k].nextsector = sectnum;
wall[k].nextwall = i;
}
numnewwalls++;
}
}
}
return(numnewwalls);
}
#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)
{
return 0x56c764d4l;
b=b;
}
#endif
int32_t xb1[MAXWALLSB], yb1[MAXWALLSB], xb2[MAXWALLSB], yb2[MAXWALLSB];
int32_t rx1[MAXWALLSB], ry1[MAXWALLSB], rx2[MAXWALLSB], ry2[MAXWALLSB];
int16_t p2[MAXWALLSB], thesector[MAXWALLSB];
int16_t thewall[MAXWALLSB];
int16_t bunchfirst[MAXWALLSB], bunchlast[MAXWALLSB];
static int16_t smost[MAXYSAVES], smostcnt;
static int16_t smoststart[MAXWALLSB];
static char smostwalltype[MAXWALLSB];
static int32_t smostwall[MAXWALLSB], smostwallcnt = -1L;
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];
int16_t umost[MAXXDIM], dmost[MAXXDIM];
static int16_t bakumost[MAXXDIM], bakdmost[MAXXDIM];
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 wx1, wy1, wx2, wy2, ydimen;
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;
char *globalpalwritten;
int32_t globaluclip, globaldclip, globvis;
int32_t globalvisibility, globalhisibility, globalpisibility, globalcisibility;
char globparaceilclip, globparaflorclip;
int32_t xyaspect, viewingrangerecip;
intptr_t asm1, asm2, asm3, asm4,palookupoffse[4];
int32_t vplce[4], vince[4], bufplce[4];
char globalxshift, globalyshift;
int32_t globalxpanning, globalypanning, globalshade;
int16_t globalpicnum, globalshiftval;
int32_t globalzd, globalyscale, globalorientation;
intptr_t globalbufplc;
int32_t globalx1, globaly1, globalx2, globaly2, globalx3, globaly3, globalzx;
int32_t globalx, globaly, globalz;
int16_t sectorborder[256], sectorbordercnt;
static char tablesloaded = 0;
int32_t pageoffset, ydim16, qsetmode = 0;
int32_t startposx, startposy, startposz;
int16_t startang, startsectnum;
int16_t pointhighlight, linehighlight, highlightcnt;
int32_t lastx[MAXYDIM];
char *transluc = NULL, 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 POLYMOST
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, numhits, numbunches;
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 editstatus = 0;
int16_t searchit;
int32_t searchx = -1, searchy; //search input
int16_t searchsector, searchwall, searchstat; //search output
// if searchstat==0 (wall), searchbottomwall is ==.nextwall if aiming at
// bottom of a wall with swapped walls (.cstat&2), else it's ==searchwall
int16_t searchbottomwall;
double msens = 1.0;
static char artfilename[20];
static int32_t numtilefiles, 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 POLYMOST
static int32_t bakrendmode,baktile;
#endif
int32_t totalclocklock;
char apptitle[256] = "Build Engine";
uint8_t **basepaltableptr;
uint8_t basepalcount;
uint8_t curbasepal;
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));
}
//
// 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];
for (z=headspritesect[sectnum]; z>=0; z=nextspritesect[z])
{
spr = &sprite[z];
if ((((spr->cstat&0x8000) == 0) || (showinvisibility)) &&
(spr->xrepeat > 0) && (spr->yrepeat > 0) &&
(spritesortcnt < MAXSPRITESONSCREEN))
{
xs = spr->x-globalposx; ys = spr->y-globalposy;
if ((spr->cstat&48) || (xs*cosglobalang+ys*singlobalang > 0))
{
copybufbyte(spr,&tsprite[spritesortcnt],sizeof(spritetype));
spriteext[z].tspr = (spritetype *)&tsprite[spritesortcnt];
tsprite[spritesortcnt++].owner = z;
}
}
}
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))
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;
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;
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);
yinc = ((scale(z,xdimenscale,iy2)<<4)-y) / (ix2-ix1+1);
qinterpolatedown16short((intptr_t)&mostbuf[ix1],ix2-ix1+1,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;
//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);
yinc = ((scale(z2,xdimenscale,iy2)<<4)-y) / (ix2-ix1+1);
qinterpolatedown16short((intptr_t)&mostbuf[ix1],ix2-ix1+1,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
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();
}
//
// 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 ((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);
}
}
//
// 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();
}
//
// 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(((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);
slopevlin(ylookup[y2]+x+frameoffset,krecipasm(asm3>>3),(intptr_t)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;
UNREFERENCED_PARAMETER(dax1);
UNREFERENCED_PARAMETER(dax2);
sectnum = thesector[bunchfirst[bunch]]; sec = &sector[sectnum];
globalhorizbak = globalhoriz;
if (parallaxyscale != 65536)
globalhoriz = mulscale16(globalhoriz-(ydimen>>1),parallaxyscale) + (ydimen>>1);
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;
k = 11 - (picsiz[globalpicnum]&15) - pskybits;
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+pskyoff[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+pskyoff[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+pskyoff[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+pskyoff[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);
}
if ((andwstat1&3) != 3) //draw ceilings
{
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);
}
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]) //ceiling
{
searchsector = sectnum; searchwall = wallnum;
searchstat = 1; searchit = 1;
}
else if (searchy >= dplc[searchx]) //floor
{
searchsector = sectnum; searchwall = wallnum;
searchstat = 2; searchit = 1;
}
}
if (nextsectnum >= 0)
{
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)
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))
if (searchy <= dwall[searchx]) //wall
{
searchsector = sectnum; searchbottomwall = searchwall = wallnum;
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)
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))
if (searchy >= uwall[searchx]) //wall
{
searchsector = sectnum; searchbottomwall = searchwall = wallnum;
if ((wal->cstat&2) > 0) searchbottomwall = wal->nextwall;
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);
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) && (searchx >= x1) && (searchx <= x2))
{
searchit = 1; searchsector = sectnum; searchbottomwall = searchwall = wallnum;
if (nextsectnum < 0) searchstat = 0; else searchstat = 4;
}
}
}
}
//
// drawvox
//
#ifdef SUPERBUILD
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, int32_t *daumost, 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;
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];
l2 = distrecip[(ny+yoff)>>14];
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);
}
}
}
}
enddrawing(); //}}}
}
#endif
//
// 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 POLYMOST
if (rendmode == 3)
{
polymost_drawsprite(snum);
# ifdef USE_OPENGL
bglDisable(GL_POLYGON_OFFSET_FILL);
# endif
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;
#ifdef SUPERBUILD
if ((cstat&48)==48) vtilenum = tilenum; // if the game wants voxels, it gets voxels
else if ((cstat&48)!=48 && (usevoxels) && (tiletovox[tilenum] != -1)
#if defined(POLYMOST) && defined(USE_OPENGL)
&& (!(spriteext[tspr->owner].flags&SPREXT_NOTMD))
#endif
)
{
vtilenum = tiletovox[tilenum];
cstat |= 48;
}
#endif
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 = 0x7fffffff;
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
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 = 0x80000000;
}
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 = 0x80000000;
else
x = 0x7fffffff;
}
else
{
//INTERSECTION!
x = (xp1-globalposx) + scale(xp2-xp1,z1,z1-z2);
y = (yp1-globalposy) + scale(yp2-yp1,z1,z1-z2);
yp1 = dmulscale14(x,cosglobalang,y,singlobalang);
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 = 0x80000001;
}
else
x = 0x7fffffff;
}
}
}
}
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
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 = 0x7fffffff;
rpoint = -1; rmax = 0x80000000;
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
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 (pow2long[x] != xspan)
{
x++;
globalx1 = mulscale(globalx1,xspan,x);
globalx2 = mulscale(globalx2,xspan,x);
}
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);
//Draw it!
ceilspritescan(lx,rx-1);
}
#ifdef SUPERBUILD
else if ((cstat&48) == 48)
{
int32_t nxrepeat, nyrepeat;
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 = (((int32_t)tspr->xrepeat)<<16);
nyrepeat = (((int32_t)tspr->yrepeat)<<16);
}
else
{
nxrepeat = ((int32_t)tspr->xrepeat)*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)));
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 = 0x7fffffff;
//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;
#if defined(POLYMOST) && defined(USE_OPENGL)
i += spriteext[tspr->owner].angoff;
#endif
drawvox(tspr->x,tspr->y,tspr->z,i,(int32_t)tspr->xrepeat,(int32_t)tspr->yrepeat,vtilenum,tspr->shade,tspr->pal,lwall,swall);
}
#endif
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 POLYMOST
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;
#if defined POLYMOST && defined USE_OPENGL
if (rendmode >= 3 && qsetmode == 200) { polymost_fillpolygon(npoints); return; }
#endif
miny = 0x7fffffff; maxy = 0x80000000;
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 = (y1>>12);
y2 = ry1[zz]; day2 = (y2>>12);
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;
#ifndef ENGINE_USING_A_C
char bad;
int32_t ny1, ny2, xx, xend;
int32_t qlinemode=0, y1ve[4], y2ve[4], u4, d4;
#endif
UNREFERENCED_PARAMETER(uniqid);
//============================================================================= //POLYMOST BEGINS
#ifdef POLYMOST
if (rendmode >= 3 && qsetmode == 200) { polymost_dorotatesprite(sx,sy,z,a,picnum,dashade,dapalnum,dastat,cx1,cy1,cx2,cy2,uniqid); return; }
# ifdef POLYMER
if (rendmode == 4 && qsetmode == 200) { polymer_rotatesprite(sx,sy,z,a,picnum,dashade,dapalnum,dastat,cx1,cy1,cx2,cy2); return; }
#endif
#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; */
#ifndef ENGINE_USING_A_C
if ((dastat&1) == 0)
{
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;
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
{
if ((dastat&1) == 0)
{
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
{
tsetupspritevline(palookupoffs,(xv>>16)*ysiz,xv<<16,ysiz,yv,0L);
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 (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
{
tspritevline(0L,by<<16,y2-y1+1,bx<<16,(bx>>16)*ysiz+(by>>16)+bufplc,p);
}
faketimerhandler();
}
}
#else // ENGINE_USING_A_C
if ((dastat&1) == 0)
{
if (dastat&64)
setupspritevline(palookupoffs,xv,yv,ysiz);
else
msetupspritevline(palookupoffs,xv,yv,ysiz);
}
else
{
tsetupspritevline(palookupoffs,xv,yv,ysiz);
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 (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);
}
else
{
tspritevline(bx&65535,by&65535,y2-y1+1,(bx>>16)*ysiz+(by>>16)+bufplc,p);
//transarea += (y2-y1);
}
faketimerhandler();
}
#endif
/* 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);
}
#ifdef SUPERBUILD
for (i=1; i<65536; i++) distrecip[i] = divscale20(xdimen,i);
nytooclose = xdimen*2100;
nytoofar = 65536*16384-1048576;
#endif
}
}
//
// 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);
}
//clearbufbyte(colhere,sizeof(colhere),0L);
//clearbufbyte(colhead,sizeof(colhead),0L);
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(65536L)) == 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);
kclose(fil);
initfastcolorlookup(30L,59L,11L);
{
int32_t i, j, k = 0;
for (i=0; i<256; i++)
{
j = ((int32_t)palette[i*3])+((int32_t)palette[i*3+1])+((int32_t)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 = 0x7fffffff;
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;
}
fprintf(stderr, "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
static spriteext_t spriteext_s[MAXSPRITES+MAXUNIQHUDID];
static spritesmooth_t spritesmooth_s[MAXSPRITES+MAXUNIQHUDID];
static sectortype sector_s[MAXSECTORS];
static walltype wall_s[MAXWALLS];
static spritetype sprite_s[MAXSPRITES];
static spritetype tsprite_s[MAXSPRITESONSCREEN];
#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 }, // +1024: 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 += 2*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
sector = sector_s;
wall = wall_s;
sprite = sprite_s;
tsprite = tsprite_s;
spriteext = spriteext_s;
spritesmooth = spritesmooth_s;
state_compress = (qlz_state_compress *) Bmalloc(sizeof(qlz_state_compress) + sizeof(qlz_state_decompress));
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();
clipmapinfo_init();
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;
}
if (loadtables()) return 1;
xyaspect = -1;
pskyoff[0] = 0; pskybits = 0;
parallaxtype = 2; parallaxyoffs = 0L; parallaxyscale = 65536;
showinvisibility = 0;
#ifdef SUPERBUILD
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);
#endif
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;
pointhighlight = -1;
linehighlight = -1;
highlightcnt = 0;
totalclock = 0;
visibility = 512;
parallaxvisibility = 512;
captureformat = 0;
loadpalette();
#if defined(POLYMOST) && defined(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);
#if defined(POLYMOST) && defined(USE_OPENGL)
polymost_glreset();
hicinit();
freeallmodels();
#ifdef POLYMER
polymer_uninit();
#endif
/* if (cachefilehandle > -1)
Bclose(cachefilehandle);
if (cacheindexptr != NULL)
Bfclose(cacheindexptr); */
#endif
if (artfil != -1) kclose(artfil);
i=(sizeof(artptrs)/sizeof(intptr_t))-1;
// this leaves a bunch of invalid pointers in waloff... fixme?
for (; i>=0; 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)
{
if (lookupsalloctype == 0) Bfree((void *)lookups);
//if (lookupsalloctype == 1) suckcache(lookups); //Cache already gone
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, z, 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);
globalvisibility = mulscale16(visibility,i);
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));
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 POLYMOST
# ifdef POLYMER
if (rendmode == 4)
{
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;
#endif
//============================================================================= //POLYMOST ENDS
begindrawing(); //{{{
//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;
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)
{
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))
{
clearbuf(&tempbuf[0],(int32_t)((numbunches+3)>>2),0L);
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);
}
/*
// 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);
}
*/
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;
// PLAG: sorting stuff
_equation maskeq, p1eq, p2eq;
_point2d dot, dot2, middle, pos, spr;
#ifdef POLYMER
if ((rendmode == 4) && 0)
{
polymer_drawmasks();
return;
}
#endif
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);
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:
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);
}*/
{
#if defined(USE_OPENGL) && defined(POLYMOST)
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);
}
#if defined(USE_OPENGL) && defined(POLYMOST)
if (totalclock < lastcullcheck - CULL_DELAY)
lastcullcheck = totalclock;
if (totalclock >= lastcullcheck + CULL_DELAY)
lastcullcheck = (totalclock + CULL_DELAY);
#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;
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];
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;
char myflags = flags&(~3);
flags &= 3;
i = strlen(filename)-1;
if (filename[i] == 255) { filename[i] = 0; flags = 1; } // JBF 20040119: "compatibility"
if ((fil = kopen4load(filename,flags)) == -1)
{ mapversion = 7L; return(-1); }
kread(fil,&mapversion,4); mapversion = B_LITTLE32(mapversion);
if (mapversion != 7L && mapversion != 8L) { 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==7l?MAXSECTORSV7:MAXSECTORSV8)
#define MYMAXWALLS (mapversion==7l?MAXWALLSV7:MAXWALLSV8)
#define MYMAXSPRITES (mapversion==7l?MAXSPRITESV7:MAXSPRITESV8)
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 > 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;
}
}
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);
if (!quickloadboard)
{
Bmemset(spriteext, 0, sizeof(spriteext_t) * MAXSPRITES);
#if defined(POLYMOST) && defined(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 = strlen(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);
#if defined(POLYMOST) && defined(USE_OPENGL)
memset(spriteext, 0, sizeof(spriteext_t) * MAXSPRITES);
memset(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++)
{
polymer_deletelight(maphacklight[i]);
maphacklight[i] = -1;
}
maphacklightcnt = 0;
}
#else
void delete_maphack_lights() {}
#endif
//
// loadmaphack
//
#if defined(POLYMOST) && defined(USE_OPENGL)
int32_t loadmaphack(const char *filename)
{
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
for (i=0; i<PR_MAXLIGHTS; i++)
maphacklight[i] = -1;
#endif
if (filename)
{
memset(spriteext, 0, sizeof(spriteext_t) * MAXSPRITES);
memset(spritesmooth, 0, sizeof(spritesmooth_t) *(MAXSPRITES+MAXUNIQHUDID));
Bstrcpy(fn, filename);
script = scriptfile_fromfile(filename);
}
else if (fn[0])
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)
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)
{
lightid = polymer_addlight(&light);
if (lightid>=0)
maphacklight[maphacklightcnt++] = lightid;
}
break;
}
#endif // POLYMER
default:
// unrecognised token
break;
}
}
scriptfile_close(script);
return 0;
}
#else
int32_t loadmaphack(char *filename) { 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
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);
}
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);
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);
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;
#if defined(USE_OPENGL) && defined(POLYMOST)
extern char nogl;
if (nogl) dabpp = 8;
#endif
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;
if (setvideomode(daxdim,daydim,dabpp,davidoption) < 0) return(-1);
// Workaround possible bugs in the GL driver
makeasmwriteable();
#if defined(POLYMOST) && defined(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)
{
if (lookupsalloctype == 0) Bfree((void *)lookups);
if (lookupsalloctype == 1) suckcache(lookups);
lookups = NULL;
}
lookupsalloctype = 0;
if ((lookups = (intptr_t *)Bmalloc(j<<1)) == NULL)
{
allocache((intptr_t *)&lookups,j<<1,&permanentlock);
lookupsalloctype = 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); }
#if defined(POLYMOST) && defined(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;
int16_t fil, i, j, k;
Bstrcpy(artfilename,filename);
for (i=0; i<MAXTILES; i++)
{
tilesizx[i] = 0;
tilesizy[i] = 0;
picanm[i] = 0L;
}
artsize = 0L;
numtilefiles = 0;
do
{
k = numtilefiles;
artfilename[7] = (k%10)+48;
artfilename[6] = ((k/10)%10)+48;
artfilename[5] = ((k/100)%10)+48;
if ((fil = kopen4load(artfilename,0)) != -1)
{
kread(fil,&artversion,4); artversion = B_LITTLE32(artversion);
if (artversion != 1)
{
Bprintf("loadpics(): Invalid art file version in %s\n", artfilename);
return(-1);
}
kread(fil,&numtiles,4); numtiles = B_LITTLE32(numtiles);
kread(fil,&localtilestart,4); localtilestart = B_LITTLE32(localtilestart);
kread(fil,&localtileend,4); localtileend = B_LITTLE32(localtileend);
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] = k;
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[numtilefiles] = Brealloc(artptrs[numtilefiles], i);
klseek(fil, 0, BSEEK_SET);
kread(fil, artptrs[numtilefiles], i);
}
#endif
kclose(fil);
}
numtilefiles++;
}
while (k != numtilefiles && k < 64);
clearbuf(&gotpic[0],(int32_t)((MAXTILES+31)>>5),0L);
//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 -= 65536L;
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
if (artptrs[(i = tilefilenum[tilenume])]) // 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]);
}
//
// 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;
}
}
}
//
// qloadkvx
//
#ifdef SUPERBUILD
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);
#if defined POLYMOST && defined USE_OPENGL
if (voxmodels[voxindex])
{
voxfree(voxmodels[voxindex]);
voxmodels[voxindex] = NULL;
}
voxmodels[voxindex] = voxload(filename);
#endif
return 0;
}
#endif
//
// 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));
}
//
// 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 = 0x7fffffff; else nextz = 0x80000000;
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 i, cnt, nexts, x, y, z, cz, fz, dasectnum, dacnt, danum;
int32_t x21, y21, z21, x31, y31, x34, y34, bot, t;
if ((x1 == x2) && (y1 == y2)) return(sect1 == sect2);
x21 = x2-x1; y21 = y2-y1; z21 = z2-z1;
clipsectorlist[0] = sect1; danum = 1;
for (dacnt=0; dacnt<danum; dacnt++)
{
dasectnum = clipsectorlist[dacnt]; sec = &sector[dasectnum];
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) continue;
nexts = wal->nextsector;
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,&cz,&fz);
if ((z <= cz) || (z >= fz)) return(0);
getzsofslope((int16_t)nexts,x,y,&cz,&fz);
if ((z <= cz) || (z >= fz)) return(0);
for (i=danum-1; i>=0; i--) if (clipsectorlist[i] == nexts) break;
if (i < 0) clipsectorlist[danum++] = nexts;
}
}
for (i=danum-1; i>=0; i--) if (clipsectorlist[i] == sect2) return(1);
return(0);
}
// 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 = 0x7fffffff, 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 != 0x7fffffff) && (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;
}
}
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;
}
}
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;
}
}
}
}
}
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;
hitinfo->hitsect = -1; hitinfo->hitwall = -1; hitinfo->hitsprite = -1;
if (sectnum < 0) return(-1);
hitinfo->pos.x = hitscangoalx; hitinfo->pos.y = hitscangoaly;
dawalclipmask = (cliptype&65535);
dasprclipmask = (cliptype>>16);
clipsectorlist[0] = sectnum;
tempshortcnt = 0; tempshortnum = 1;
clipspritecnt = clipspritenum = 0;
do
{
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;
}
dasector = clipsectorlist[tempshortcnt]; sec = &sector[dasector];
i = 1;
if (curspr)
{
if (dasector == sectq[clipinfo[curidx].qend])
{
i = -1;
tmp[2] = 1;
}
else tmp[2] = 0;
}
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;
}
}
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;
}
}
for (zz=tempshortnum-1; zz>=0; zz--)
if (clipsectorlist[zz] == nextsector) break;
if (zz < 0) clipsectorlist[tempshortnum++] = nextsector;
}
if (curspr)
continue;
for (z=headspritesect[dasector]; z>=0; z=nextspritesect[z])
{
spr = &sprite[z];
cstat = spr->cstat;
#ifdef POLYMOST
if (!hitallsprites)
#endif
if ((cstat&dasprclipmask) == 0) continue;
// 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;
}
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;
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);
if (curspr)
mapinfo_set(NULL, &origmapinfo);
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, char 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) return(0);
if ((tagsearch < 1) || (tagsearch > 3)) 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;
}
}
}
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;
}
}
}
}
}
}
}
tempshortcnt++;
}
while (tempshortcnt < tempshortnum);
return(0);
}
//
// dragpoint
//
void dragpoint(int16_t pointhighlight, int32_t dax, int32_t day)
{
int16_t cnt, tempshort;
int32_t thelastwall;
wall[pointhighlight].x = dax;
wall[pointhighlight].y = day;
wall[pointhighlight].cstat |= (1<<14);
if (linehighlight >= 0 && linehighlight < MAXWALLS)
wall[linehighlight].cstat |= (1<<14);
wall[lastwall(pointhighlight)].cstat |= (1<<14);
cnt = MAXWALLS;
tempshort = pointhighlight; //search points CCW
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));
}
//
// 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;
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;
}
if (clipsectnum==0)
clipsectorlist[clipsectnum++] = sectq[k-1];
return flipmul;
}
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 *vect, 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 = (vect->x) + (xvect>>14);
goaly = (vect->y) + (yvect>>14);
clipnum = 0;
cx = (((vect->x)+goalx)>>1);
cy = (((vect->y)+goaly)>>1);
//Extra walldist for sprites on sector lines
gx = goalx-(vect->x); gy = goaly-(vect->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
{
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, vect);
}
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*((vect->y)-y1) < ((vect->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;
if (curspr)
{
if (wal->nextsector>=0)
{
int32_t basez;
if (rintersect(vect->x,vect->y,0, gx,gy,0, x1,y1, x2,y2, &dax,&day,&daz) == 0)
dax = vect->x, day = vect->y;
daz = getflorzofslope((int16_t)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) <= vect->z && vect->z <= basez+(flordist-1))
clipyou = 1;
if (clipyou == 0)
{
daz = getceilzofslope((int16_t)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) <= vect->z && vect->z <= daz2+(ceildist-1))
clipyou = 1;
}
}
}
else if ((wal->nextsector < 0) || (wal->cstat&dawalclipmask)) clipyou = 1;
else if (editstatus == 0)
{
if (rintersect(vect->x,vect->y,0,gx,gy,0,x1,y1,x2,y2,&dax,&day,&daz) == 0)
dax = vect->x, day = vect->y;
daz = getflorzofslope((int16_t)dasect,dax,day);
daz2 = getflorzofslope(wal->nextsector,dax,day);
sec2 = &sector[wal->nextsector];
if (daz2 < daz-(1<<8))
if ((sec2->floorstat&1) == 0)
if ((vect->z) >= daz2-(flordist-1)) clipyou = 1;
if (clipyou == 0)
{
daz = getceilzofslope((int16_t)dasect,dax,day);
daz2 = getceilzofslope(wal->nextsector,dax,day);
if (daz2 > daz+(1<<8))
if ((sec2->ceilingstat&1) == 0)
if ((vect->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;
}
}
if (curspr)
continue; // next sector of this index
for (j=headspritesect[dasect]; j>=0; j=nextspritesect[j])
{
spr = &sprite[j];
cstat = spr->cstat;
if ((cstat&dasprclipmask) == 0) continue;
if (clipsprite_try(spr, xmin,ymin, xmax,ymax))
continue;
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 (((vect->z) < daz+ceildist) && ((vect->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 (((vect->z) < daz) && ((vect->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-(vect->x))*(y2-(vect->y)) >= (x2-(vect->x))*(y1-(vect->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)*((vect->x)-x1) + (y2-y1)*((vect->y)-y1) < 0)
{ addclipline(x1-day,y1+dax,x1+dax,y1+day,(int16_t)j+49152); }
else if ((x1-x2)*((vect->x)-x2) + (y1-y2)*((vect->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 (((vect->z) < daz) && ((vect->z) > daz2))
{
if ((cstat&64) != 0)
if (((vect->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;
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]-(vect->x))*(ryi[1]-(vect->y)) < (rxi[1]-(vect->x))*(ryi[0]-(vect->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]-(vect->x))*(ryi[3]-(vect->y)) < (rxi[3]-(vect->x))*(ryi[2]-(vect->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]-(vect->x))*(ryi[2]-(vect->y)) < (rxi[2]-(vect->x))*(ryi[1]-(vect->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]-(vect->x))*(ryi[0]-(vect->y)) < (rxi[0]-(vect->x))*(ryi[3]-(vect->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);
if (curspr)
{
// restore original map
mapinfo_set(NULL, &origmapinfo);
clipsectnum = origclipsectnum;
Bmemcpy(clipsectorlist, origclipsectorlist, clipsectnum*sizeof(clipsectorlist[0]));
}
hitwall = 0;
cnt = clipmoveboxtracenum;
do
{
intx = goalx; inty = goaly;
hitwall = raytrace(vect->x, vect->y, &intx, &inty);
if (hitwall >= 0)
{
lx = clipit[hitwall].x2-clipit[hitwall].x1;
ly = clipit[hitwall].y2-clipit[hitwall].y1;
tempint2 = lx*lx + ly*ly;
if (tempint2 > 0)
{
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(vect->x,vect->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--;
vect->x = intx;
vect->y = inty;
}
while (((xvect|yvect) != 0) && (hitwall >= 0) && (cnt > 0));
for (j=0; j<clipsectnum; j++)
if (inside(vect->x,vect->y,clipsectorlist[j]) == 1)
{
*sectnum = clipsectorlist[j];
return(retval);
}
*sectnum = -1; tempint1 = 0x7fffffff;
for (j=numsectors-1; j>=0; j--)
if (inside(vect->x,vect->y,j) == 1)
{
if (sector[j].ceilingstat&2)
tempint2 = (getceilzofslope((int16_t)j,vect->x,vect->y)-(vect->z));
else
tempint2 = (sector[j].ceilingz-(vect->z));
if (tempint2 > 0)
{
if (tempint2 < tempint1)
{ *sectnum = j; tempint1 = tempint2; }
}
else
{
if (sector[j].floorstat&2)
tempint2 = ((vect->z)-getflorzofslope((int16_t)j,vect->x,vect->y));
else
tempint2 = ((vect->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);
}
//
// 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 updatesectorexclude(int32_t x, int32_t y, int16_t *sectnum, const uint8_t *excludesectbitmap)
{
walltype *wal;
int32_t i, j;
if (!(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;
}
void updatesectorz(int32_t x, int32_t y, int32_t z, int16_t *sectnum)
{
walltype *wal;
int32_t i, j, cz, fz;
if ((*sectnum >= 0) && (*sectnum < numsectors))
{
// this block used to be outside the "if" and caused crashes in Polymost Mapster32
getzsofslope(*sectnum, x, y, &cz, &fz);
if ((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)
{
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 *vect, 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;
spritetype *curspr=NULL; // non-NULL when handling sprite with sector-like clipping
int32_t curidx=-1, clipspritecnt;
if (sectnum < 0)
{
*ceilz = 0x80000000; *ceilhit = -1;
*florz = 0x7fffffff; *florhit = -1;
return;
}
//Extra walldist for sprites on sector lines
i = walldist+MAXCLIPDIST+1;
xmin = vect->x-i; ymin = vect->y-i;
xmax = vect->x+i; ymax = vect->y+i;
getzsofslope(sectnum,vect->x,vect->y,ceilz,florz);
*ceilhit = sectnum+16384; *florhit = sectnum+16384;
dawalclipmask = (cliptype&65535);
dasprclipmask = (cliptype>>16);
clipsectorlist[0] = sectnum;
clipsectcnt = 0; clipsectnum = 1;
clipspritecnt = clipspritenum = 0;
if (0)
{
beginagain:
// replace sector and wall with clip map
mapinfo_set(&origmapinfo, &clipmapinfo);
clipsectcnt = clipsectnum; // should be a nop, "safety"...
}
do //Collect sectors inside your square first
{
if (clipsectcnt>=clipsectnum)
{
// one bunch of 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)
{
clipspritecnt++;
continue;
}
clipsprite_initindex(curidx, curspr, &clipsectcnt, vect);
for (i=0; i<clipsectnum; i++)
{
int32_t fz,cz;
k = clipsectorlist[i];
if (k==sectq[clipinfo[curidx].qend])
continue;
getzsofslope((int16_t)k,vect->x,vect->y,&daz,&daz2);
getzsofslope(sectq[clipinfo[curidx].qend],vect->x,vect->y,&cz,&fz);
if ((sector[k].ceilingstat&1)==0)
{
if (vect->z < cz && cz < *florz) { *florz = cz; *florhit = (curspr-sprite)+49152; }
if (vect->z > daz && daz > *ceilz) { *ceilz = daz; *ceilhit = (curspr-sprite)+49152; }
}
if ((sector[k].floorstat&1)==0)
{
if (vect->z < daz2 && daz2 < *florz) { *florz = daz2; *florhit = (curspr-sprite)+49152; }
if (vect->z > fz && fz > *ceilz) { *ceilz = fz; *ceilhit = (curspr-sprite)+49152; }
}
}
}
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*(vect->y-y1) < (vect->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];
if (curspr)
{
if (k==sectq[clipinfo[curidx].qend])
continue;
if ((sec->ceilingstat&1) && (sec->floorstat&1))
continue;
}
else if (editstatus == 0)
{
if (((sec->ceilingstat&1) == 0) && (vect->z <= sec->ceilingz+(3<<8))) continue;
if (((sec->floorstat&1) == 0) && (vect->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;
//It actually got here, through all the continue's!!!
getzsofslope((int16_t)k,vect->x,vect->y,&daz,&daz2);
if (curspr)
{
int32_t fz,cz;
getzsofslope(sectq[clipinfo[curidx].qend],vect->x,vect->y,&cz,&fz);
if ((sec->ceilingstat&1)==0)
{
if (vect->z < cz && cz < *florz) { *florz = cz; *florhit = (curspr-sprite)+49152; }
if (vect->z > daz && daz > *ceilz) { *ceilz = daz; *ceilhit = (curspr-sprite)+49152; }
}
if ((sec->floorstat&1)==0)
{
if (vect->z < daz2 && daz2 < *florz) { *florz = daz2; *florhit = (curspr-sprite)+49152; }
if (vect->z > fz && fz > *ceilz) { *ceilz = fz; *ceilhit = (curspr-sprite)+49152; }
}
}
else
{
if (daz > *ceilz) { *ceilz = daz; *ceilhit = k+16384; }
if (daz2 < *florz) { *florz = daz2; *florhit = k+16384; }
}
}
}
clipsectcnt++;
}
while (clipsectcnt < clipsectnum || clipspritecnt < clipspritenum);
if (curspr)
{
mapinfo_set(NULL, &origmapinfo); // restore original map
return;
}
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)
{
if (clipsprite_try(spr, xmin,ymin, xmax,ymax))
continue;
x1 = spr->x; y1 = spr->y;
clipyou = 0;
switch (cstat&48)
{
case 0:
k = walldist+(spr->clipdist<<2)+1;
if ((klabs(x1-vect->x) <= k) && (klabs(y1-vect->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(vect->x,vect->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 ((vect->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;
ang = spr->ang;
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)-vect->x;
y1 += dmulscale16(sinang,day,-cosang,dax)-vect->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 ((vect->z > daz) && (daz > *ceilz)) { *ceilz = daz; *ceilhit = j+49152; }
if ((vect->z < daz2) && (daz2 < *florz)) { *florz = daz2; *florhit = j+49152; }
}
}
}
}
if (clipspritenum>0)
goto beginagain;
}
void setaspect_new()
{
if (r_usenewaspect && newaspect_enable)
{
// 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(65536L,(int32_t)divscale16(ydim*320L,xdim*200L));
}
//
// 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(1L,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
}
}
void setvgapalette(void)
{
int32_t i;
for (i=0; i<256; i++)
{
curpalettefaded[i].b = curpalette[i].b = vgapal16[4*i] << 2;
curpalettefaded[i].g = curpalette[i].g = vgapal16[4*i+1] << 2;
curpalettefaded[i].r = curpalette[i].r = vgapal16[4*i+2] << 2;
}
setpalette(0,256);
}
//
// setbasepaltable
//
void setbasepaltable(uint8_t **thebasepaltable, uint8_t thebasepalcount)
{
if (thebasepalcount >= MAXBASEPALS)
thebasepalcount = MAXBASEPALS - 1;
basepaltableptr = thebasepaltable;
basepalcount = thebasepalcount;
}
//
// setbrightness
//
void setbrightness(char dabrightness, uint8_t dapalid, char noapply)
{
int32_t i, k, j;
uint8_t *dapal;
// uint32_t lastbright = curbrightness;
if (dapalid >= basepalcount)
dapalid = 0;
curbasepal = dapalid;
dapal = basepaltableptr[dapalid];
if (!(noapply&4))
{
curbrightness = min(max((int32_t)dabrightness,0),15);
// if (lastbright != (unsigned)curbrightness)
// vid_gamma = 1.0 + ((float)curbrightness / 10.0);
}
if (setgamma()) j = curbrightness; else j = 0;
for (k=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 ((noapply&1) == 0) setpalette(0,256);
#if defined(POLYMOST) && defined(USE_OPENGL)
if (rendmode >= 3)
{
static uint32_t lastpalettesum = 0;
uint32_t newpalettesum = crc32once((uint8_t *)curpalettefaded, sizeof(curpalettefaded));
// only reset the textures if the preserve flag (bit 1 of noapply) is 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 (!(noapply&2) && (newpalettesum != lastpalettesum))
gltexinvalidateall();
if (!(noapply&8) && (newpalettesum != lastpalettesum))
gltexinvalidate8();
#ifdef POLYMER
if ((rendmode == 4) && (newpalettesum != lastpalettesum))
polymer_texinvalidate();
#endif
lastpalettesum = newpalettesum;
}
#endif
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 ];
return p;
}
}
//
// setpalettefade
//
void setpalettefade(char r, char g, char b, char offset)
{
int32_t i;
palette_t p;
palfadergb.r = min(63,r) << 2;
palfadergb.g = min(63,g) << 2;
palfadergb.b = min(63,b) << 2;
palfadedelta = min(63,offset) << 2;
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;
}
setpalette(0,256);
}
//
// clearview
//
void clearview(int32_t dacol)
{
intptr_t p;
int32_t y, dx;
if (qsetmode != 200) return;
#if defined(POLYMOST) && defined(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);
#if defined(POLYMOST) && defined(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(); //{{{
//clearbufbyte((void*)frameplace,imageSize,0L);
Bmemset((void *)frameplace,dacol,imageSize);
enddrawing(); //}}}
//nextpage();
faketimerhandler();
}
//
// plotpixel
//
void plotpixel(int32_t x, int32_t y, char col)
{
#if defined(POLYMOST) && defined(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;
#if defined(POLYMOST) && defined(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;
#if defined(POLYMOST) && defined(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 POLYMOST
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 POLYMOST
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 POLYMOST
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;
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];
#if defined(POLYMOST) && defined(USE_OPENGL)
if (rendmode >= 3)
{
palette_t p;
if (gammabrightness) p = curpalette[col];
else
{
p.r = britable[curbrightness][ curpalette[col].r ];
p.g = britable[curbrightness][ curpalette[col].g ];
p.b = britable[curbrightness][ curpalette[col].b ];
}
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;
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 < (uint32_t)ydim16 && (uint32_t)(x1+r) < (uint32_t)xres)
drawpixel_safe((char *)(p+r), col); // a
if ((uint32_t)x1 < (uint32_t)xres && (uint32_t)(y1+r) < (uint32_t)ydim16)
drawpixel_safe((char *)(p+(r*bytesperline)), col); // b
if ((uint32_t)y1 < (uint32_t)ydim16 && (uint32_t)(x1-r) < (uint32_t)xres)
drawpixel_safe((char *)(p-r), col); // c
if ((uint32_t)x1 < (uint32_t)xres && (uint32_t)(y1-r) < (uint32_t)ydim16)
drawpixel_safe((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) < (uint32_t)xres && (uint32_t)(y1+xp) < (uint32_t)ydim16)
drawpixel_safe((char *)(p+yp+xpbpl), col); // 1
if ((uint32_t)(x1+xp) < (uint32_t)xres && (uint32_t)(y1+yp) < (uint32_t)ydim16)
drawpixel_safe((char *)(p+xp+ypbpl), col); // 2
if ((uint32_t)(x1-xp) < (uint32_t)xres && (uint32_t)(y1+yp) < (uint32_t)ydim16)
drawpixel_safe((char *)(p-xp+ypbpl), col); // 3
if ((uint32_t)(x1-yp) < (uint32_t)xres && (uint32_t)(y1+xp) < (uint32_t)ydim16)
drawpixel_safe((char *)(p-yp+xpbpl), col); // 4
if ((uint32_t)(x1-yp) < (uint32_t)xres && (uint32_t)(y1-xp) < (uint32_t)ydim16)
drawpixel_safe((char *)(p-yp-xpbpl), col); // 5
if ((uint32_t)(x1-xp) < (uint32_t)xres && (uint32_t)(y1-yp) < (uint32_t)ydim16)
drawpixel_safe((char *)(p-xp-ypbpl), col); // 6
if ((uint32_t)(x1+xp) < (uint32_t)xres && (uint32_t)(y1-yp) < (uint32_t)ydim16)
drawpixel_safe((char *)(p+xp-ypbpl), col); // 7
if ((uint32_t)(x1+yp) < (uint32_t)xres && (uint32_t)(y1-xp) < (uint32_t)ydim16)
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);
}
}
//
// qsetmode640350
//
void qsetmode640350(void)
{
if (qsetmode != 350)
{
if (setvideomode(640, 350, 8, fullscreen) < 0)
{
//fprintf(stderr, "Couldn't set 640x350 video mode for some reason.\n");
return;
}
xdim = xres;
ydim = yres;
// setvgapalette();
ydim16 = 350;
halfxdim16 = 320;
midydim16 = 146;
begindrawing(); //{{{
clearbuf((char *)frameplace, (bytesperline*350L) >> 2, 0);
enddrawing(); //}}}
}
qsetmode = 350;
}
//
// qsetmode640480
//
void qsetmode640480(void)
{
if (qsetmode != 480)
{
if (setvideomode(640, 480, 8, fullscreen) < 0)
{
//fprintf(stderr, "Couldn't set 640x480 video mode for some reason.\n");
return;
}
xdim = xres;
ydim = yres;
// setvgapalette();
ydim16 = 336;
halfxdim16 = 320;
midydim16 = 200;
begindrawing(); //{{{
clearbuf((char *)(frameplace + (336l*bytesperline)), (bytesperline*144L) >> 2, 0x08080808l);
clearbuf((char *)frameplace, (bytesperline*336L) >> 2, 0L);
enddrawing(); //}}}
}
qsetmode = 480;
}
//
// 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)))
{
if (setvideomode(daxdim, daydim, 8, fullscreen) < 0)
return;
xdim = xres;
ydim = yres;
// setvgapalette();
ydim16 = yres - STATUS2DSIZ2;
halfxdim16 = xres >> 1;
midydim16 = ydim16 >> 1; // scale(200,yres,480);
begindrawing(); //{{{
clearbuf((char *)(frameplace + (ydim16*bytesperline)), (bytesperline*STATUS2DSIZ2) >> 2, 0x08080808l);
clearbuf((char *)frameplace, (ydim16*bytesperline) >> 2, 0L);
enddrawing(); //}}}
}
qsetmode = ((daxdim<<16)|(daydim&0xffff));
}
//
// clear2dscreen
//
void clear2dscreen(void)
{
int32_t clearsz;
begindrawing(); //{{{
if (qsetmode == 350) clearsz = 350;
else
{
if (ydim16 <= yres-STATUS2DSIZ2) clearsz = yres - STATUS2DSIZ2;
else clearsz = yres;
}
clearbuf((char *)frameplace, (bytesperline*clearsz) >> 2, 0);
enddrawing(); //}}}
}
////////// editor side view //////////
inline 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
inline 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)
{
const walltype *wal = &wall[i];
int32_t j, x1, y1, x2, y2, dz = 0, dz2 = 0;
// intptr_t tempint;
char col;
int64_t dist,dx,dy;
if (editstatus == 0)
{
if ((show2dwall[i>>3]&pow2char[i&7]) == 0) return;
j = wal->nextwall;
if ((j >= 0) && (i > j))
if ((show2dwall[j>>3]&pow2char[j&7]) > 0) return;
}
else
{
j = wal->nextwall;
if (!m32_sideview && (j >= 0) && (i > j)) return;
}
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[wal->nextwall].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 > 0xffffffff)
{
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 fz, fz2, fzn;
int32_t 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)-fz;
drawline16mid(x1,y1, x1,y1+getscreenvdisp(fzn,zoome), editorcolors[col]);
}
}
if ((wal->cstat&64) > 0) // 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 if (jj > ii)
{
int32_t dax2 = mulscale11(sintable[(k+1024)&2047],zoome) / 2560;
int32_t day2 = mulscale11(sintable[(k+512)&2047],zoome) / 2560;
day2 = scalescreeny(day2);
drawline16mid(dax,day, dax+dax2,day+day2, editorcolors[col]);
}
else if (jj < ii)
{
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]);
}
}
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)
{
int16_t nw = wall[i].nextwall;
if (nw>=0)
{
int32_t fz = getflorzofslope(sectorofwall(i), wall[i].x, wall[i].y);
int32_t fz2 = getflorzofslope(wall[i].nextsector, wall[i].x, wall[i].y);
if (fz < fz2)
col = 7;
else if (fz==fz2)
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;
if (qsetmode == 200) return;
setup_sideview_sincos();
if (m32_sideview && !m32_wallsprite)
{
m32_wallsprite = Bmalloc((MAXWALLS+MAXSPRITES)*sizeof(int16_t));
m32_sidedist = Bmalloc((MAXWALLS+MAXSPRITES)*sizeof(m32_sidedist[0]));
if (!m32_wallsprite || !m32_sidedist)
{
if (m32_wallsprite) Bfree(m32_wallsprite);
if (m32_sidedist) { Bfree(m32_sidedist); m32_sidedist=NULL; }
initprintf("out of memory!");
m32_sideview = 0;
}
}
begindrawing(); //{{{
if (editstatus == 0)
{
// faketimerhandler();
clear2dscreen();
// faketimerhandler();
draw2dgrid(posxe,posye,posze,cursectnum,ange,zoome,gride);
}
faketimerhandler();
m32_swcnt = 0;
if (!m32_sideview)
for (i=numwalls-1; i>=0; i--)
drawscreen_drawwall(i,posxe,posye,posze,zoome);
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 || editstatus == 0)
for (j=0; j<MAXSPRITES; j++)
if (sprite[j].statnum<MAXSTATUS && (editstatus == 1 || (show2dsprite[j>>3]&pow2char[j&7])))
{
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)
drawscreen_drawwall(j,posxe,posye,posze,zoome);
else
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; }
#if defined(POLYMOST) && defined(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
//
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;
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++;
fn[i++] = 't';
fn[i++] = 'g';
fn[i++] = 'a';
if ((fil = Bfopen(fn,"rb")) == NULL) break;
Bfclose(fil);
capturecount++;
}
while (1);
fil = Bfopen(fn,"wb");
if (fil == NULL)
{
Bfree(fn);
return -1;
}
#if defined(POLYMOST) && defined(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
#if defined(POLYMOST) && defined(USE_OPENGL)
if (rendmode < 3 || (rendmode >= 3 && qsetmode != 200))
{
#endif
//getpalette(0,256,palette);
for (i=0; i<256; i++)
{
Bfputc(curpalettefaded[i].b, fil); // b
Bfputc(curpalettefaded[i].g, fil); // g
Bfputc(curpalettefaded[i].r, fil); // r
}
#if defined(POLYMOST) && defined(USE_OPENGL)
}
#endif
// targa renders bottom to top, from left to right
if (inverseit && qsetmode != 200)
{
inversebuf = (char *)Bmalloc(bytesperline);
if (inversebuf)
{
for (i=ydim-1; i>=0; i--)
{
copybuf(ptr+i*bytesperline, inversebuf, xdim >> 2);
for (j=0; j < (bytesperline>>2); j++)((int32_t *)inversebuf)[j] ^= 0x0f0f0f0fL;
Bfwrite(inversebuf, xdim, 1, fil);
}
Bfree(inversebuf);
}
}
else
{
#if defined(POLYMOST) && defined(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);
#if defined(POLYMOST) && defined(USE_OPENGL)
}
#endif
}
enddrawing(); //}}}
Bfclose(fil);
OSD_Printf("Saved screenshot to %s\n", fn);
Bfree(fn);
capturecount++;
return(0);
}
// PCX is nasty, which is why I've lifted these functions from the PCX spec by ZSoft
static int32_t writepcxbyte(char colour, char count, BFILE *fp)
{
if (!count) return 0;
if (count == 1 && (colour & 0xc0) != 0xc0)
{
Bfputc(colour, fp);
return 1;
}
else
{
Bfputc(0xc0 | count, fp);
Bfputc(colour, fp);
return 2;
}
}
static void writepcxline(char *buf, int32_t bytes, int32_t step, BFILE *fp)
{
char ths, last;
int32_t srcIndex;
char runCount;
runCount = 1;
last = *buf;
for (srcIndex=1; srcIndex<bytes; srcIndex++)
{
buf += step;
ths = *buf;
if (ths == last)
{
runCount++;
if (runCount == 63)
{
writepcxbyte(last, runCount, fp);
runCount = 0;
}
}
else
{
if (runCount)
writepcxbyte(last, runCount, fp);
last = ths;
runCount = 1;
}
}
if (runCount) writepcxbyte(last, runCount, fp);
if (bytes&1) writepcxbyte(0, 1, fp);
}
int32_t screencapture_pcx(const char *filename, char inverseit)
{
int32_t i,j,bpl;
char *ptr, head[128];
//char palette[4*256];
char *fn = Bstrdup(filename), *inversebuf;
BFILE *fil;
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++;
fn[i++] = 'p';
fn[i++] = 'c';
fn[i++] = 'x';
if ((fil = Bfopen(fn,"rb")) == NULL) break;
Bfclose(fil);
capturecount++;
}
while (1);
fil = Bfopen(fn,"wb");
if (fil == NULL)
{
Bfree(fn);
return -1;
}
memset(head,0,128);
head[0] = 10;
head[1] = 5;
head[2] = 1;
head[3] = 8;
head[12] = 72; head[13] = 0;
head[14] = 72; head[15] = 0;
head[65] = 1; // 8-bit
head[68] = 1;
#if defined(POLYMOST) && defined(USE_OPENGL)
if (rendmode >= 3 && qsetmode == 200)
{
head[65] = 3; // 24-bit
}
#endif
head[8] = (xdim-1) & 0xff;
head[9] = ((xdim-1) >> 8) & 0xff;
head[10] = (ydim-1) & 0xff;
head[11] = ((ydim-1) >> 8) & 0xff;
bpl = xdim + (xdim&1);
head[66] = bpl & 0xff;
head[67] = (bpl >> 8) & 0xff;
Bfwrite(head, 128, 1, fil);
begindrawing(); //{{{
ptr = (char *)frameplace;
// targa renders bottom to top, from left to right
if (inverseit && qsetmode != 200)
{
inversebuf = (char *)Bmalloc(bytesperline);
if (inversebuf)
{
for (i=0; i<ydim; i++)
{
copybuf(ptr+i*bytesperline, inversebuf, xdim >> 2);
for (j=0; j < (bytesperline>>2); j++)((int32_t *)inversebuf)[j] ^= 0x0f0f0f0fL;
writepcxline(inversebuf, xdim, 1, fil);
}
Bfree(inversebuf);
}
}
else
{
#if defined(POLYMOST) && defined(USE_OPENGL)
if (rendmode >= 3 && qsetmode == 200)
{
// 24bit
inversebuf = (char *)Bmalloc(xdim*ydim*3);
if (inversebuf)
{
bglReadPixels(0,0,xdim,ydim,GL_RGB,GL_UNSIGNED_BYTE,inversebuf);
for (i=ydim-1; i>=0; i--)
{
writepcxline(inversebuf+i*xdim*3, xdim, 3, fil);
writepcxline(inversebuf+i*xdim*3+1, xdim, 3, fil);
writepcxline(inversebuf+i*xdim*3+2, xdim, 3, fil);
}
Bfree(inversebuf);
}
}
else
{
#endif
for (i=0; i<ydim; i++)
writepcxline(ptr+i*bytesperline, xdim, 1, fil);
#if defined(POLYMOST) && defined(USE_OPENGL)
}
#endif
}
enddrawing(); //}}}
// palette last
#if defined(POLYMOST) && defined(USE_OPENGL)
if (rendmode < 3 || (rendmode >= 3 && qsetmode != 200))
{
#endif
//getpalette(0,256,palette);
Bfputc(12,fil);
for (i=0; i<256; i++)
{
Bfputc(curpalettefaded[i].r, fil); // b
Bfputc(curpalettefaded[i].g, fil); // g
Bfputc(curpalettefaded[i].b, fil); // r
}
#if defined(POLYMOST) && defined(USE_OPENGL)
}
#endif
Bfclose(fil);
OSD_Printf("Saved screenshot to %s\n", fn);
Bfree(fn);
capturecount++;
return(0);
}
int32_t screencapture(const char *filename, char inverseit)
{
if (captureformat == 0) return screencapture_tga(filename,inverseit);
else return screencapture_pcx(filename,inverseit);
}
//
// setrendermode
//
int32_t setrendermode(int32_t renderer)
{
UNREFERENCED_PARAMETER(renderer);
#if defined(POLYMOST) && defined(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 %d failed postprocessing!\n", i);
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
else renderer = 3;
# endif
rendmode = renderer;
if (rendmode >= 3)
glrendmode = rendmode;
#endif
return 0;
}
//
// setrollangle
//
#ifdef POLYMOST
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)
{
#if defined(POLYMOST) && defined(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)
{
#if defined(POLYMOST) && defined(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_replace(): 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;
}
int32_t hash_find(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(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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