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raze-gles/polymer/eduke32/build/src/polymost.c

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/**************************************************************************************************
"POLYMOST" code written by Ken Silverman
Ken Silverman's official web site: http://www.advsys.net/ken
Motivation:
When 3D Realms released the Duke Nukem 3D source code, I thought somebody would do a OpenGL or
Direct3D port. Well, after a few months passed, I saw no sign of somebody working on a true
hardware-accelerated port of Build, just people saying it wasn't possible. Eventually, I realized
the only way this was going to happen was for me to do it myself. First, I needed to port Build to
Windows. I could have done it myself, but instead I thought I'd ask my Australian buddy, Jonathon
Fowler, if he would upgrade his Windows port to my favorite compiler (MSVC) - which he did. Once
that was done, I was ready to start the "POLYMOST" project.
About:
This source file is basically a complete rewrite of the entire rendering part of the Build engine.
There are small pieces in ENGINE.C to activate this code, and other minor hacks in other source
files, but most of it is in here. If you're looking for polymost-related code in the other source
files, you should find most of them by searching for either "polymost" or "rendmode". Speaking of
rendmode, there are now 4 rendering modes in Build:
rendmode 0: The original code I wrote from 1993-1997
rendmode 1: Solid-color rendering: my debug code before I did texture mapping
rendmode 2: Software rendering before I started the OpenGL code (Note: this is just a quick
hack to make testing easier - it's not optimized to my usual standards!)
rendmode 3: The OpenGL code
The original Build engine did hidden surface removal by using a vertical span buffer on the tops
and bottoms of walls. This worked nice back in the day, but it it's not suitable for a polygon
engine. So I decided to write a brand new hidden surface removal algorithm - using the same idea
as the original Build - but one that worked with vectors instead of already rasterized data.
Brief history:
06/20/2000: I release Build Source code
04/01/2003: 3D Realms releases Duke Nukem 3D source code
10/04/2003: Jonathon Fowler gets his Windows port working in Visual C
10/04/2003: I start writing POLYMOST.BAS, a new hidden surface removal algorithm for Build that
works on a polygon level instead of spans.
10/16/2003: Ported POLYMOST.BAS to C inside JonoF KenBuild's ENGINE.C; later this code was split
out of ENGINE.C and put in this file, POLYMOST.C.
12/10/2003: Started OpenGL code for POLYMOST (rendmode 3)
12/23/2003: 1st public release
01/01/2004: 2nd public release: fixed stray lines, status bar, mirrors, sky, and lots of other bugs.
----------------------------------------------------------------------------------------------------
Todo list (in approximate chronological order):
High priority:
* BOTH: Do accurate software sorting/chopping for sprites: drawing in wrong order is bad :/
* BOTH: Fix hall of mirrors near "zenith". Call polymost_drawrooms twice?
* OPENGL: drawmapview()
Low priority:
* SOFT6D: Do back-face culling of sprites during up/down/tilt transformation (top of drawpoly)
* SOFT6D: Fix depth shading: use saturation&LUT
* SOFT6D: Optimize using hyperbolic mapping (similar to KUBE algo)
* SOFT6D: Slab6-style voxel sprites. How to accelerate? :/
* OPENGL: KENBUILD: Write flipping code for floor mirrors
* BOTH: KENBUILD: Parallaxing sky modes 1&2
* BOTH: Masked/1-way walls don't clip correctly to sectors of intersecting ceiling/floor slopes
* BOTH: Editart x-center is not working correctly with Duke's camera/turret sprites
* BOTH: Get rid of horizontal line above Duke full-screen status bar
* BOTH: Combine ceilings/floors into a single triangle strip (should lower poly count by 2x)
* BOTH: Optimize/clean up texture-map setup equations
**************************************************************************************************/
#ifdef USE_OPENGL
#include "compat.h"
#include "build.h"
#include "glbuild.h"
#include "mdsprite.h"
#include "pragmas.h"
#include "baselayer.h"
#include "osd.h"
#include "engine_priv.h"
#include "hightile.h"
#include "polymost.h"
#include "polymer.h"
#include "cache1d.h"
#include "kplib.h"
#include "texcache.h"
#include "common.h"
#ifndef _WIN32
extern int32_t filelength(int h); // kplib.c
#endif
extern char textfont[2048], smalltextfont[2048];
int32_t rendmode=0;
#ifdef __ANDROID__
int32_t usemodels=0;
#else
int32_t usemodels=1;
#endif
int32_t usehightile=1;
int32_t vsync=0;
#include <math.h> //<-important!
#include <float.h>
typedef struct { float x, cy[2], fy[2]; int32_t tag; int16_t n, p, ctag, ftag; } vsptyp;
#define VSPMAX 4096 //<- careful!
static vsptyp vsp[VSPMAX];
static int32_t gtag;
static float dxb1[MAXWALLSB], dxb2[MAXWALLSB];
#define SCISDIST .9999f //1.0: Close plane clipping distance
float shadescale = 1.0f;
int32_t shadescale_unbounded = 0;
int32_t r_usenewshading = 3;
int32_t r_usetileshades = 2;
int32_t r_npotwallmode = 0;
static float gviewxrange;
static float ghoriz;
float gxyaspect;
float gyxscale, ghalfx, grhalfxdown10, grhalfxdown10x;
float gcosang, gsinang, gcosang2, gsinang2;
float gchang, gshang, gctang, gstang, gvisibility;
float gtang = 0.f;
static double guo, gux, guy; //Screen-based texture mapping parameters
static double gvo, gvx, gvy;
static double gdo, gdx, gdy;
float fcosglobalang, fsinglobalang;
float fxdim, fydim, fxdimen, fydimen, fviewingrange;
static int32_t preview_mouseaim=0; // when 1, displays a CROSSHAIR tsprite at the _real_ aimed position
#ifdef USE_OPENGL
static int32_t srepeat = 0, trepeat = 0;
#ifdef REDBLUEMODE
int32_t glredbluemode = 0;
static int32_t lastglredbluemode = 0, redblueclearcnt = 0;
#endif
struct glfiltermodes glfiltermodes[NUMGLFILTERMODES] =
{
{"GL_NEAREST",GL_NEAREST,GL_NEAREST},
{"GL_LINEAR",GL_LINEAR,GL_LINEAR},
{"GL_NEAREST_MIPMAP_NEAREST",GL_NEAREST_MIPMAP_NEAREST,GL_NEAREST},
{"GL_LINEAR_MIPMAP_NEAREST",GL_LINEAR_MIPMAP_NEAREST,GL_LINEAR},
{"GL_NEAREST_MIPMAP_LINEAR",GL_NEAREST_MIPMAP_LINEAR,GL_NEAREST},
{"GL_LINEAR_MIPMAP_LINEAR",GL_LINEAR_MIPMAP_LINEAR,GL_LINEAR}
};
int32_t glanisotropy = 1; // 0 = maximum supported by card
int32_t glusetexcompr = 1;
int32_t gltexfiltermode = 2; // GL_NEAREST_MIPMAP_NEAREST
int32_t glusetexcache = 2, glusememcache = 1;
int32_t glmultisample = 0, glnvmultisamplehint = 0;
int32_t gltexmaxsize = 0; // 0 means autodetection on first run
int32_t gltexmiplevel = 0; // discards this many mipmap levels
static int32_t lastglpolygonmode = 0; //FUK
int32_t glpolygonmode = 0; // 0:GL_FILL,1:GL_LINE,2:GL_POINT //FUK
int32_t glprojectionhacks = 1;
static GLuint polymosttext = 0;
int32_t glrendmode = REND_POLYMOST;
// This variable, and 'shadeforfullbrightpass' control the drawing of
// fullbright tiles. Also see 'fullbrightloadingpass'.
static int32_t fullbrightdrawingpass = 0;
int32_t r_detailmapping = 1;
int32_t r_glowmapping = 1;
int32_t r_vertexarrays = 1;
int32_t r_vbos = 1;
int32_t r_vbocount = 64;
int32_t r_animsmoothing = 1;
int32_t r_fullbrights = 1;
int32_t r_downsize = 0;
int32_t r_downsizevar = -1;
// used for fogcalc
static float fogresult, fogresult2, fogcol[4], fogtable[4*MAXPALOOKUPS];
#endif
static const float float_trans[4] = { 1.0f, 1.0f, 0.66f, 0.33f };
char ptempbuf[MAXWALLSB<<1];
// polymost ART sky control
int32_t r_parallaxskyclamping = 1;
int32_t r_parallaxskypanning = 0;
#define MIN_CACHETIME_PRINT 10
// this was faster in MSVC but slower with GCC... currently unknown on ARM where both
// the FPU and possibly the optimization path in the compiler need improvement
#if 0
static inline int32_t __float_as_int(float f) { return *(int32_t *) &f; }
static inline float __int_as_float(int32_t d) { return *(float *) &d; }
static inline float Bfabsf(float f) { return __int_as_float(__float_as_int(f)&0x7fffffff); }
#else
#define Bfabsf fabsf
#endif
void drawline2d(float x0, float y0, float x1, float y1, char col)
{
float f, dx, dy, fxres, fyres;
int32_t e, inc, x, y;
uint32_t up16;
dx = x1-x0; dy = y1-y0; if ((dx == 0) && (dy == 0)) return;
fxres = fxdimen; fyres = fydimen;
if (x0 >= fxres) { if (x1 >= fxres) return; y0 += (fxres-x0)*dy/dx; x0 = fxres; }
else if (x0 < 0) { if (x1 < 0) return; y0 += (0-x0)*dy/dx; x0 = 0; }
if (x1 >= fxres) { y1 += (fxres-x1)*dy/dx; x1 = fxres; }
else if (x1 < 0) { y1 += (0-x1)*dy/dx; x1 = 0; }
if (y0 >= fyres) { if (y1 >= fyres) return; x0 += (fyres-y0)*dx/dy; y0 = fyres; }
else if (y0 < 0) { if (y1 < 0) return; x0 += (0-y0)*dx/dy; y0 = 0; }
if (y1 >= fyres) { x1 += (fyres-y1)*dx/dy; y1 = fyres; }
else if (y1 < 0) { x1 += (0-y1)*dx/dy; y1 = 0; }
if (Bfabsf(dx) > Bfabsf(dy))
{
if (x0 > x1) { f = x0; x0 = x1; x1 = f; f = y0; y0 = y1; y1 = f; }
y = (int32_t)(y0*65536.f)+32768;
inc = (int32_t)(dy/dx*65536.f+.5f);
x = (int32_t)(x0+0.5f); if (x < 0) { y -= inc*x; x = 0; } //if for safety
e = (int32_t)(x1+0.5f); if (e > xdimen) e = xdimen; //if for safety
up16 = (ydimen<<16);
for (; x<e; x++,y+=inc) if ((uint32_t)y < up16) *(char *)(ylookup[y>>16]+x+frameoffset) = col;
}
else
{
if (y0 > y1) { f = x0; x0 = x1; x1 = f; f = y0; y0 = y1; y1 = f; }
x = (int32_t)(x0*65536.f)+32768;
inc = (int32_t)(dx/dy*65536.f+.5f);
y = (int32_t)(y0+0.5f); if (y < 0) { x -= inc*y; y = 0; } //if for safety
e = (int32_t)(y1+0.5f); if (e > ydimen) e = ydimen; //if for safety
up16 = (xdimen<<16);
for (; y<e; y++,x+=inc) if ((uint32_t)x < up16) *(char *)(ylookup[y]+(x>>16)+frameoffset) = col;
}
}
#ifdef USE_OPENGL
int32_t mdtims, omdtims;
float alphahackarray[MAXTILES];
int32_t drawingskybox = 0;
int32_t hicprecaching = 0;
#if 0
static inline int32_t gltexmayhavealpha(int32_t dapicnum, int32_t dapalnum)
{
const int32_t j = (dapicnum&(GLTEXCACHEADSIZ-1));
pthtyp *pth;
for (pth=texcache.list[j]; pth; pth=pth->next)
if (pth->picnum == dapicnum && pth->palnum == dapalnum)
return ((pth->flags&PTH_HASALPHA) != 0);
return 1;
}
#endif
void gltexinvalidate(int32_t dapicnum, int32_t dapalnum, int32_t dameth)
{
const int32_t j = (dapicnum&(GLTEXCACHEADSIZ-1));
pthtyp *pth;
for (pth=texcache.list[j]; pth; pth=pth->next)
if (pth->picnum == dapicnum && pth->palnum == dapalnum &&
(pth->flags & PTH_CLAMPED) == TO_PTH_CLAMPED(dameth))
{
pth->flags |= PTH_INVALIDATED;
if (pth->flags & PTH_HASFULLBRIGHT)
pth->ofb->flags |= PTH_INVALIDATED;
}
}
//Make all textures "dirty" so they reload, but not re-allocate
//This should be much faster than polymost_glreset()
//Use this for palette effects ... but not ones that change every frame!
void gltexinvalidatetype(int32_t type)
{
int32_t j;
pthtyp *pth;
for (j=0; j<=GLTEXCACHEADSIZ-1; j++)
{
for (pth=texcache.list[j]; pth; pth=pth->next)
{
if (type == INVALIDATE_ALL || (type == INVALIDATE_ART && pth->hicr == NULL))
{
pth->flags |= PTH_INVALIDATED;
if (pth->flags & PTH_HASFULLBRIGHT)
pth->ofb->flags |= PTH_INVALIDATED;
}
}
}
if (type == INVALIDATE_ALL)
clearskins();
#ifdef DEBUGGINGAIDS
OSD_Printf("gltexinvalidateall()\n");
#endif
}
static void bind_2d_texture(GLuint texture)
{
bglBindTexture(GL_TEXTURE_2D, texture);
bglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, glfiltermodes[gltexfiltermode].mag);
bglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, glfiltermodes[gltexfiltermode].min);
if (glinfo.maxanisotropy > 1.f)
bglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, glanisotropy);
}
void gltexapplyprops(void)
{
int32_t i;
pthtyp *pth;
if (getrendermode() == REND_CLASSIC)
return;
if (glinfo.maxanisotropy > 1.f)
{
if (glanisotropy <= 0 || glanisotropy > glinfo.maxanisotropy)
glanisotropy = (int32_t)glinfo.maxanisotropy;
}
gltexfiltermode = clamp(gltexfiltermode, 0, NUMGLFILTERMODES-1);
for (i=0; i<=GLTEXCACHEADSIZ-1; i++)
{
for (pth=texcache.list[i]; pth; pth=pth->next)
{
bind_2d_texture(pth->glpic);
if (r_fullbrights && pth->flags & PTH_HASFULLBRIGHT)
bind_2d_texture(pth->ofb->glpic);
}
}
{
int32_t j;
mdskinmap_t *sk;
md2model_t *m;
for (i=0; i<nextmodelid; i++)
{
m = (md2model_t *)models[i];
if (m->mdnum < 2) continue;
for (j=0; j<m->numskins*(HICEFFECTMASK+1); j++)
{
if (!m->texid[j]) continue;
bind_2d_texture(m->texid[j]);
}
for (sk=m->skinmap; sk; sk=sk->next)
for (j=0; j<(HICEFFECTMASK+1); j++)
{
if (!sk->texid[j]) continue;
bind_2d_texture(sk->texid[j]);
}
}
}
}
//--------------------------------------------------------------------------------------------------
float glox1, gloy1, glox2, gloy2;
//Use this for both initialization and uninitialization of OpenGL.
static int32_t gltexcacnum = -1;
void polymost_glreset()
{
int32_t i;
pthtyp *pth, *next;
for (i=0; i<=MAXPALOOKUPS-1; i++)
{
fogtable[i<<2] = palookupfog[i].r * (1.f/63.f);
fogtable[(i<<2)+1] = palookupfog[i].g * (1.f/63.f);
fogtable[(i<<2)+2] = palookupfog[i].b * (1.f/63.f);
fogtable[(i<<2)+3] = 0;
}
//Reset if this is -1 (meaning 1st texture call ever), or > 0 (textures in memory)
if (gltexcacnum < 0)
{
gltexcacnum = 0;
//Hack for polymost_dorotatesprite calls before 1st polymost_drawrooms()
gcosang = gcosang2 = 16384.f/262144.f;
gsinang = gsinang2 = 0.f/262144.f;
}
else
{
for (i=0; i<=GLTEXCACHEADSIZ-1; i++)
{
for (pth=texcache.list[i]; pth;)
{
next = pth->next;
if (pth->flags & PTH_HASFULLBRIGHT)
{
bglDeleteTextures(1,&pth->ofb->glpic);
Bfree(pth->ofb);
}
bglDeleteTextures(1,&pth->glpic);
Bfree(pth);
pth = next;
}
texcache.list[i] = NULL;
}
clearskins();
}
if (polymosttext)
bglDeleteTextures(1,&polymosttext);
polymosttext=0;
md_freevbos();
Bmemset(texcache.list,0,sizeof(texcache.list));
glox1 = -1;
texcache_freeptrs();
texcache_syncmemcache();
#ifdef DEBUGGINGAIDS
OSD_Printf("polymost_glreset()\n");
#endif
}
// one-time initialization of OpenGL for polymost
void polymost_glinit()
{
if (!Bstrcmp(glinfo.vendor, "NVIDIA Corporation"))
bglHint(GL_FOG_HINT, GL_NICEST);
else
bglHint(GL_FOG_HINT, GL_DONT_CARE);
bglFogi(GL_FOG_MODE, GL_EXP2);
bglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
bglPixelStorei(GL_PACK_ALIGNMENT, 1);
bglPixelStorei(GL_UNPACK_ALIGNMENT, 1);
//bglHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
//bglEnable(GL_LINE_SMOOTH);
if (glmultisample > 0 && glinfo.multisample)
{
if (glinfo.nvmultisamplehint)
bglHint(GL_MULTISAMPLE_FILTER_HINT_NV, glnvmultisamplehint ? GL_NICEST:GL_FASTEST);
bglEnable(GL_MULTISAMPLE_ARB);
}
if (r_detailmapping && (!glinfo.multitex || !glinfo.envcombine))
{
OSD_Printf("Your OpenGL implementation doesn't support detail mapping. Disabling...\n");
r_detailmapping = 0;
}
if (r_glowmapping && (!glinfo.multitex || !glinfo.envcombine))
{
OSD_Printf("Your OpenGL implementation doesn't support glow mapping. Disabling...\n");
r_glowmapping = 0;
}
if (r_vbos && (!glinfo.vbos))
{
OSD_Printf("Your OpenGL implementation doesn't support Vertex Buffer Objects. Disabling...\n");
r_vbos = 0;
}
bglEnableClientState(GL_VERTEX_ARRAY);
bglEnableClientState(GL_TEXTURE_COORD_ARRAY);
texcache_init();
texcache_loadoffsets();
texcache_openfiles();
texcache_setupmemcache();
texcache_checkgarbage();
}
////////// VISIBILITY FOG ROUTINES //////////
extern char nofog; // in windows/SDL layers
// only for r_usenewshading < 2 (not preferred)
static void fogcalc_old(int32_t shade, int32_t vis)
{
float f;
bglFogi(GL_FOG_MODE, GL_EXP2);
if (r_usenewshading==1)
{
f = 0.9f * shade;
f = (vis > 239) ? (float)(gvisibility*((vis-240+f))) :
(float)(gvisibility*(vis+16+f));
}
else
{
f = (shade < 0) ? shade * 3.5f : shade * .66f;
f = (vis > 239) ? (float)(gvisibility*((vis-240+f)/(klabs(vis-256)))) :
(float)(gvisibility*(vis+16+f));
}
if (f < 0.001f)
f = 0.001f;
else if (f > 100.0f)
f = 100.0f;
fogresult = f;
}
// For GL_LINEAR fog:
#define FOGDISTCONST 600
#define FULLVIS_BEGIN 2.9e30
#define FULLVIS_END 3.0e30
static inline void fogcalc(int32_t tile, int32_t shade, int32_t vis, int32_t pal)
{
Bmemcpy(fogcol, &fogtable[pal<<2], sizeof(fogcol));
if (getrendermode() == REND_POLYMOST && r_usetileshades == 1 && shade > 0 &&
(!usehightile || !hicfindsubst(tile, pal)) &&
(!usemodels || md_tilehasmodel(tile, pal) < 0))
shade >>= 1;
if (r_usenewshading < 2)
{
fogcalc_old(shade, vis);
return;
}
else
{
float combvis = (float)globalvisibility * (uint8_t)(vis+16);
bglFogi(GL_FOG_MODE, GL_LINEAR);
if (combvis == 0)
{
if (r_usenewshading == 2 && shade > 0)
{
// beg = -D*shade, end = D*(NUMSHADES-1-shade)
// => end/beg = -(NUMSHADES-1-shade)/shade
fogresult = (float)-FULLVIS_BEGIN;
fogresult2 = FULLVIS_BEGIN * (float)(numshades-1-shade)/shade;
}
else
{
fogresult = (float)FULLVIS_BEGIN;
fogresult2 = (float)FULLVIS_END;
}
return;
}
if (r_usenewshading == 3 && shade >= numshades-1)
{
fogresult = -1;
fogresult2 = 0;
}
else
{
combvis = 1.f/combvis;
fogresult = (r_usenewshading == 3 && shade > 0) ? 0 : -(FOGDISTCONST * shade) * combvis;
fogresult2 = (FOGDISTCONST * (numshades-1-shade)) * combvis;
}
}
}
void calc_and_apply_fog(int32_t tile, int32_t shade, int32_t vis, int32_t pal)
{
if (nofog)
return;
fogcalc(tile, shade, vis, pal);
bglFogfv(GL_FOG_COLOR, fogcol);
if (r_usenewshading < 2)
{
bglFogf(GL_FOG_DENSITY, fogresult);
return;
}
bglFogf(GL_FOG_START, fogresult);
bglFogf(GL_FOG_END, fogresult2);
}
void calc_and_apply_fog_factor(int32_t tile, int32_t shade, int32_t vis, int32_t pal, float factor)
{
if (nofog)
return;
// NOTE: for r_usenewshading >= 2, the fog beginning/ending distance results are
// unused.
fogcalc(tile, shade, vis, pal);
bglFogfv(GL_FOG_COLOR, fogcol);
if (r_usenewshading < 2)
{
bglFogf(GL_FOG_DENSITY, fogresult*factor);
return;
}
bglFogf(GL_FOG_START, (GLfloat)FULLVIS_BEGIN);
bglFogf(GL_FOG_END, (GLfloat)FULLVIS_END);
}
////////////////////
static float get_projhack_ratio(void)
{
if (glprojectionhacks == 1)
{
float mul = (gshang*gshang);
return 1.05f + mul*mul*mul*mul;
}
if (glprojectionhacks == 2)
{
float abs_shang = Bfabsf(gshang);
if (abs_shang > 0.7f)
return 1.05f + 4.f*(abs_shang-0.7f);
}
// No projection hacks (legacy or new-aspect)
return 1.0f;
}
static void resizeglcheck(void)
{
#ifdef REDBLUEMODE
if (glredbluemode < lastglredbluemode)
{
glox1 = -1;
bglColorMask(1,1,1,1);
}
else if (glredbluemode != lastglredbluemode)
{
redblueclearcnt = 0;
}
lastglredbluemode = glredbluemode;
#endif
//FUK
if (lastglpolygonmode != glpolygonmode)
{
lastglpolygonmode = glpolygonmode;
switch (glpolygonmode)
{
default:
case 0:
bglPolygonMode(GL_FRONT_AND_BACK,GL_FILL); break;
case 1:
bglPolygonMode(GL_FRONT_AND_BACK,GL_LINE); break;
case 2:
bglPolygonMode(GL_FRONT_AND_BACK,GL_POINT); break;
}
}
if (glpolygonmode) //FUK
{
bglClearColor(1.0,1.0,1.0,0.0);
bglClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
bglDisable(GL_TEXTURE_2D);
}
if ((glox1 != windowx1) || (gloy1 != windowy1) || (glox2 != windowx2) || (gloy2 != windowy2))
{
const int32_t ourxdimen = (windowx2-windowx1+1);
float ratio = get_projhack_ratio();
const int32_t fovcorrect = (ratio==0) ? 0 : (int32_t)(ourxdimen*ratio - ourxdimen);
float m[4][4];
glox1 = (float)windowx1; gloy1 = (float)windowy1;
glox2 = (float)windowx2; gloy2 = (float)windowy2;
bglViewport(windowx1-(fovcorrect/2), yres-(windowy2+1),
ourxdimen+fovcorrect, windowy2-windowy1+1);
bglMatrixMode(GL_PROJECTION);
Bmemset(m,0,sizeof(m));
ratio = 1.f/ratio;
m[0][0] = fydimen * ratio; m[0][2] = 1.f;
m[1][1] = fxdimen; m[1][2] = 1.f;
m[2][2] = 1.f; m[2][3] = fydimen * ratio;
m[3][2] =-1.f;
bglLoadMatrixf(&m[0][0]);
bglMatrixMode(GL_MODELVIEW);
bglLoadIdentity();
#ifdef USE_OPENGL
if (!nofog) bglEnable(GL_FOG);
#endif
//bglEnable(GL_TEXTURE_2D);
}
}
static void fixtransparency(coltype *dapic, vec2_t dasiz, vec2_t dasiz2, int32_t dameth)
{
int32_t y, naxsiz2;
vec2_t doxy = { dasiz2.x-1, dasiz2.y-1 };
if (dameth&4) { doxy.x = min(doxy.x, dasiz.x); doxy.y = min(doxy.y, dasiz.y); }
else { dasiz = dasiz2; } //Make repeating textures duplicate top/left parts
dasiz.x--; dasiz.y--; naxsiz2 = -dasiz2.x; //Hacks for optimization inside loop
//Set transparent pixels to average color of neighboring opaque pixels
//Doing this makes bilinear filtering look much better for masked textures (I.E. sprites)
for (y=doxy.y; y>=0; y--)
{
int32_t x;
coltype * wpptr = &dapic[y*dasiz2.x+doxy.x];
for (x=doxy.x; x>=0; x--,wpptr--)
{
int32_t r=0, g=0, b=0, j=0;
if (wpptr->a) continue;
r = g = b = j = 0;
if ((x> 0) && (wpptr[ -1].a)) { r += wpptr[ -1].r; g += wpptr[ -1].g; b += wpptr[ -1].b; j++; }
if ((x<dasiz.x) && (wpptr[ +1].a)) { r += wpptr[ +1].r; g += wpptr[ +1].g; b += wpptr[ +1].b; j++; }
if ((y> 0) && (wpptr[naxsiz2].a)) { r += wpptr[naxsiz2].r; g += wpptr[naxsiz2].g; b += wpptr[naxsiz2].b; j++; }
if ((y<dasiz.y) && (wpptr[dasiz2.x].a)) { r += wpptr[dasiz2.x].r; g += wpptr[dasiz2.x].g; b += wpptr[dasiz2.x].b; j++; }
switch (j)
{
case 1:
wpptr->r = r ; wpptr->g = g ; wpptr->b = b ; break;
case 2:
wpptr->r = ((r + 1)>>1); wpptr->g = ((g + 1)>>1); wpptr->b = ((b + 1)>>1); break;
case 3:
wpptr->r = ((r*85+128)>>8); wpptr->g = ((g*85+128)>>8); wpptr->b = ((b*85+128)>>8); break;
case 4:
wpptr->r = ((r + 2)>>2); wpptr->g = ((g + 2)>>2); wpptr->b = ((b + 2)>>2); break;
default:
EDUKE32_UNREACHABLE_SECTION(break);
}
}
}
}
void uploadtexture(int32_t doalloc, int32_t xsiz, int32_t ysiz, int32_t intexfmt, int32_t texfmt,
coltype *pic, int32_t tsizx, int32_t tsizy, int32_t dameth)
{
int32_t x2, y2, j, js=0;
const int32_t hi = (dameth & DAMETH_HI) ? 1 : 0;
const int32_t nocompress = (dameth & DAMETH_NOCOMPRESS) ? 1 : 0;
dameth &= ~(DAMETH_HI|DAMETH_NOCOMPRESS);
if (gltexmaxsize <= 0)
{
GLint i = 0;
bglGetIntegerv(GL_MAX_TEXTURE_SIZE, &i);
if (!i) gltexmaxsize = 6; // 2^6 = 64 == default GL max texture size
else
{
gltexmaxsize = 0;
for (; i>1; i>>=1) gltexmaxsize++;
}
}
js = max(0,min(gltexmaxsize-1,gltexmiplevel));
gltexmiplevel = js;
while ((xsiz>>js) > (1<<gltexmaxsize) || (ysiz>>js) > (1<<gltexmaxsize)) js++;
if (hi && !nocompress) js = r_downsize;
/*
OSD_Printf("Uploading %dx%d %s as %s\n", xsiz,ysiz,
(texfmt==GL_RGBA?"GL_RGBA":
texfmt==GL_RGB?"GL_RGB":
texfmt==GL_BGR?"GL_BGR":
texfmt==GL_BGRA?"GL_BGRA":"other"),
(intexfmt==GL_RGBA?"GL_RGBA":
intexfmt==GL_RGB?"GL_RGB":
intexfmt==GL_COMPRESSED_RGBA_ARB?"GL_COMPRESSED_RGBA_ARB":
intexfmt==GL_COMPRESSED_RGB_ARB?"GL_COMPRESSED_RGB_ARB":"other"));
*/
if (js == 0)
{
if (doalloc&1)
bglTexImage2D(GL_TEXTURE_2D,0,intexfmt,xsiz,ysiz,0,texfmt,GL_UNSIGNED_BYTE,pic); //loading 1st time
else
bglTexSubImage2D(GL_TEXTURE_2D,0,0,0,xsiz,ysiz,texfmt,GL_UNSIGNED_BYTE,pic); //overwrite old texture
}
#if 0
gluBuild2DMipmaps(GL_TEXTURE_2D,GL_RGBA8,xsiz,ysiz,texfmt,GL_UNSIGNED_BYTE,pic); //Needs C++ to link?
#elif 1
x2 = xsiz; y2 = ysiz;
for (j=1; (x2 > 1) || (y2 > 1); j++)
{
int32_t y;
int32_t x3 = max(1, x2 >> 1), y3 = max(1, y2 >> 1); // this came from the GL_ARB_texture_non_power_of_two spec
//x3 = ((x2+1)>>1); y3 = ((y2+1)>>1);
for (y=0; y<y3; y++)
{
int32_t x;
coltype *wpptr = &pic[y*x3], *rpptr = &pic[(y<<1)*x2];
for (x=0; x<x3; x++,wpptr++,rpptr+=2)
{
int32_t r=0, g=0, b=0, a=0, k=0;
if (rpptr[0].a) { r += rpptr[0].r; g += rpptr[0].g; b += rpptr[0].b; a += rpptr[0].a; k++; }
if ((x+x+1 < x2) && (rpptr[1].a)) { r += rpptr[1].r; g += rpptr[1].g; b += rpptr[1].b; a += rpptr[1].a; k++; }
if (y+y+1 < y2)
{
if ((rpptr[x2].a)) { r += rpptr[x2 ].r; g += rpptr[x2 ].g; b += rpptr[x2 ].b; a += rpptr[x2 ].a; k++; }
if ((x+x+1 < x2) && (rpptr[x2+1].a)) { r += rpptr[x2+1].r; g += rpptr[x2+1].g; b += rpptr[x2+1].b; a += rpptr[x2+1].a; k++; }
}
switch (k)
{
case 0:
case 1:
wpptr->r = r; wpptr->g = g; wpptr->b = b; wpptr->a = a; break;
case 2:
wpptr->r = ((r+1)>>1); wpptr->g = ((g+1)>>1); wpptr->b = ((b+1)>>1); wpptr->a = ((a+1)>>1); break;
case 3:
wpptr->r = ((r*85+128)>>8); wpptr->g = ((g*85+128)>>8); wpptr->b = ((b*85+128)>>8); wpptr->a = ((a*85+128)>>8); break;
case 4:
wpptr->r = ((r+2)>>2); wpptr->g = ((g+2)>>2); wpptr->b = ((b+2)>>2); wpptr->a = ((a+2)>>2); break;
default:
EDUKE32_UNREACHABLE_SECTION(break);
}
//if (wpptr->a) wpptr->a = 255;
}
}
if (tsizx >= 0)
{
vec2_t tsizzle;
vec2_t mnizzle = { x3, y3 };
tsizzle.x = (tsizx+(1<<j)-1)>>j;
tsizzle.y = (tsizy+(1<<j)-1)>>j;
fixtransparency(pic, tsizzle, mnizzle, dameth);
}
if (j >= js)
{
if (doalloc&1)
bglTexImage2D(GL_TEXTURE_2D,j-js,intexfmt,x3,y3,0,texfmt,GL_UNSIGNED_BYTE,pic); //loading 1st time
else
bglTexSubImage2D(GL_TEXTURE_2D,j-js,0,0,x3,y3,texfmt,GL_UNSIGNED_BYTE,pic); //overwrite old texture
}
x2 = x3; y2 = y3;
}
#endif
}
#if 0
// TODO: make configurable
static int32_t tile_is_sky(int32_t tilenum)
{
return return (tilenum >= 78 /*CLOUDYOCEAN*/ && tilenum <= 99 /*REDSKY2*/);
}
#else
# define tile_is_sky(x) (0)
#endif
static void texture_setup(const int32_t dameth)
{
const GLuint clamp_mode = glinfo.clamptoedge ? GL_CLAMP_TO_EDGE : GL_CLAMP;
gltexfiltermode = clamp(gltexfiltermode, 0, NUMGLFILTERMODES-1);
bglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, glfiltermodes[gltexfiltermode].mag);
bglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, glfiltermodes[gltexfiltermode].min);
if (glinfo.maxanisotropy > 1.f)
{
uint32_t i = (unsigned) Blrintf(glinfo.maxanisotropy);
if ((unsigned)glanisotropy > i)
glanisotropy = i;
bglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, glanisotropy);
}
if (!(dameth & DAMETH_CLAMPED))
{
bglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, !tile_is_sky(dapic) ? GL_REPEAT : clamp_mode);
bglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
}
else
{
//For sprite textures, clamping looks better than wrapping
bglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, clamp_mode);
bglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, clamp_mode);
}
}
void gloadtile_art(int32_t dapic, int32_t dapal, int32_t dashade, int32_t dameth, pthtyp *pth, int32_t doalloc)
{
coltype *pic;
int32_t npoty = 0;
char hasalpha = 0, hasfullbright = 0;
static int32_t fullbrightloadingpass = 0;
vec2_t siz, tsiz = tilesiz[dapic];
if (!glinfo.texnpot)
{
for (siz.x=1; siz.x<tsiz.x; siz.x+=siz.x);
for (siz.y=1; siz.y<tsiz.y; siz.y+=siz.y);
}
else
{
if ((tsiz.x|tsiz.y) == 0)
{
siz.x = siz.y = 1;
}
else
{
siz.x = tsiz.x;
siz.y = tsiz.y;
}
}
pic = (coltype *)Xmalloc(siz.x*siz.y*sizeof(coltype));
if (!waloff[dapic])
{
//Force invalid textures to draw something - an almost purely transparency texture
//This allows the Z-buffer to be updated for mirrors (which are invalidated textures)
pic[0].r = pic[0].g = pic[0].b = 0; pic[0].a = 1;
tsiz.x = tsiz.y = 1; hasalpha = 1;
}
else
{
const int32_t dofullbright = !(picanm[dapic].sf&PICANM_NOFULLBRIGHT_BIT);
int32_t y;
for (y=0; y<siz.y; y++)
{
coltype *wpptr = &pic[y*siz.x];
int32_t x;
int32_t y2 = (y < tsiz.y) ? y : y-tsiz.y;
for (x=0; x<siz.x; x++,wpptr++)
{
int32_t dacol;
int32_t x2 = (x < tsiz.x) ? x : x-tsiz.x;
if ((dameth & DAMETH_CLAMPED) && (x >= tsiz.x || y >= tsiz.y)) //Clamp texture
{
wpptr->r = wpptr->g = wpptr->b = wpptr->a = 0;
continue;
}
dacol = *(char *)(waloff[dapic]+x2*tsiz.y+y2);
if (!fullbrightloadingpass)
{
// regular texture
if (dacol > 239 && dacol != 255 && dofullbright)
hasfullbright = 1;
wpptr->a = 255;
}
else
{
// texture with only fullbright areas
if (dacol < 240) // regular colors
{
wpptr->a = 0;
hasalpha = 1;
}
else // fullbright
{
wpptr->a = 255;
}
}
if (dacol != 255)
{
char *p = (char *)(palookup[dapal])+(int32_t)(dashade<<8);
dacol = (uint8_t)p[dacol];
}
else
{
wpptr->a = 0;
hasalpha = 1;
}
bricolor((palette_t *)wpptr, dacol);
}
}
}
if (doalloc) bglGenTextures(1,(GLuint *)&pth->glpic); //# of textures (make OpenGL allocate structure)
bglBindTexture(GL_TEXTURE_2D,pth->glpic);
fixtransparency(pic,tsiz,siz,dameth);
if (polymost_want_npotytex(dameth, siz.y) &&
tsiz.x==siz.x && tsiz.y==siz.y) // XXX
{
const int32_t nextpoty = 1<<((picsiz[dapic]>>4)+1);
const int32_t ydif = nextpoty - siz.y;
coltype *paddedpic;
Bassert(ydif > 0 && ydif < siz.y);
paddedpic = (coltype*) Xrealloc(pic, siz.x*nextpoty*sizeof(coltype));
pic = paddedpic;
Bmemcpy(&pic[siz.x*siz.y], pic, siz.x*ydif*sizeof(coltype));
siz.y = tsiz.y = nextpoty;
npoty = PTH_NPOTWALL;
}
uploadtexture(doalloc,siz.x,siz.y,hasalpha?GL_RGBA:GL_RGB,GL_RGBA,pic,tsiz.x,tsiz.y,dameth);
texture_setup(dameth);
Bfree(pic);
pth->picnum = dapic;
pth->palnum = dapal;
pth->shade = dashade;
pth->effects = 0;
pth->flags = TO_PTH_CLAMPED(dameth) | (hasalpha*PTH_HASALPHA) | npoty;
pth->hicr = NULL;
if (hasfullbright && !fullbrightloadingpass)
{
// Load the ONLY texture that'll be assembled with the regular one to
// make the final texture with fullbright pixels.
fullbrightloadingpass = 1;
pth->ofb = (pthtyp *)Xcalloc(1,sizeof(pthtyp));
pth->flags |= PTH_HASFULLBRIGHT;
gloadtile_art(dapic, dapal, 0, dameth, pth->ofb, 1);
fullbrightloadingpass = 0;
}
}
int32_t gloadtile_hi(int32_t dapic,int32_t dapalnum, int32_t facen, hicreplctyp *hicr,
int32_t dameth, pthtyp *pth, int32_t doalloc, char effect)
{
coltype *pic = NULL;
// int32_t xsiz=0, ysiz=0, tsizx, tsizy;
vec2_t siz ={ 0, 0 };
vec2_t tsiz;
char *picfil = NULL, *fn, hasalpha = 255;
int32_t picfillen, texfmt = GL_RGBA, intexfmt = GL_RGBA, filh;
int32_t gotcache;
texcacheheader cachead;
static coltype *lastpic = NULL;
static char *lastfn = NULL;
static int32_t lastsize = 0;
int32_t startticks=0, willprint=0;
if (!hicr) return -1;
if (facen > 0)
{
if (!hicr->skybox) return -1;
if (facen > 6) return -1;
if (!hicr->skybox->face[facen-1]) return -1;
fn = hicr->skybox->face[facen-1];
}
else
{
if (!hicr->filename) return -1;
fn = hicr->filename;
}
if (EDUKE32_PREDICT_FALSE((filh = kopen4load(fn, 0)) < 0))
{
OSD_Printf("hightile: %s (pic %d) not found\n", fn, dapic);
return -2;
}
picfillen = kfilelength(filh);
kclose(filh); // FIXME: shouldn't have to do this. bug in cache1d.c
gotcache = texcache_readtexheader(fn, picfillen+(dapalnum<<8), dameth, effect, &cachead, 0);
if (gotcache && !texcache_loadtile(&cachead, &doalloc, pth))
{
tsiz.x = cachead.xdim;
tsiz.y = cachead.ydim;
hasalpha = (cachead.flags & CACHEAD_HASALPHA) ? 0 : 255;
}
else
{
int32_t r, g, b;
int32_t j, y;
gotcache = 0; // the compressed version will be saved to disk
if ((filh = kopen4load(fn, 0)) < 0) return -1;
picfil = (char *)Xmalloc(picfillen+1);
if (EDUKE32_PREDICT_FALSE(kread(filh, picfil, picfillen) != picfillen))
initprintf("warning: didn't fully read %s\n", fn);
// prevent
// Conditional jump or move depends on uninitialised value(s)
// at kpegrend (kplib.c:1655)
picfil[picfillen] = 0;
kclose(filh);
// tsizx/y = replacement texture's natural size
// xsiz/y = 2^x size of replacement
kpgetdim(picfil,picfillen,&tsiz.x,&tsiz.y);
if (tsiz.x == 0 || tsiz.y == 0) { Bfree(picfil); return -1; }
pth->siz.x = tsiz.x;
pth->siz.y = tsiz.y;
if (!glinfo.texnpot)
{
for (siz.x=1; siz.x<tsiz.x; siz.x+=siz.x);
for (siz.y=1; siz.y<tsiz.y; siz.y+=siz.y);
}
else
{
siz.x = tsiz.x;
siz.y = tsiz.y;
}
pic = (coltype *)Xcalloc(siz.x,siz.y*sizeof(coltype));
startticks = getticks();
if (lastpic && lastfn && !Bstrcmp(lastfn,fn))
{
willprint=1;
Bmemcpy(pic, lastpic, siz.x*siz.y*sizeof(coltype));
}
else
{
if (kprender(picfil,picfillen,(intptr_t)pic,siz.x*sizeof(coltype),siz.x,siz.y)) { Bfree(picfil); Bfree(pic); return -2; }
willprint=2;
if (hicprecaching)
{
lastfn = fn; // careful...
if (!lastpic)
{
lastpic = (coltype *)Bmalloc(siz.x*siz.y*sizeof(coltype));
lastsize = siz.x*siz.y;
}
else if (lastsize < siz.x*siz.y)
{
Bfree(lastpic);
lastpic = (coltype *)Bmalloc(siz.x*siz.y*sizeof(coltype));
}
if (lastpic)
Bmemcpy(lastpic, pic, siz.x*siz.y*sizeof(coltype));
}
else if (lastpic)
{
Bfree(lastpic); lastpic=NULL;
lastfn = NULL;
lastsize = 0;
}
}
r=(glinfo.bgra)?hictinting[dapalnum].r:hictinting[dapalnum].b;
g=hictinting[dapalnum].g;
b=(glinfo.bgra)?hictinting[dapalnum].b:hictinting[dapalnum].r;
for (y=0,j=0; y<tsiz.y; y++,j+=siz.x)
{
coltype tcol;
char *cptr = britable[gammabrightness ? 0 : curbrightness];
coltype *rpptr = &pic[j];
int32_t x;
for (x=0; x<tsiz.x; x++)
{
tcol.b = cptr[rpptr[x].b];
tcol.g = cptr[rpptr[x].g];
tcol.r = cptr[rpptr[x].r];
tcol.a = rpptr[x].a;
hasalpha &= rpptr[x].a;
if (effect & HICTINT_GRAYSCALE)
{
// greyscale
tcol.b = max(tcol.b, max(tcol.g, tcol.r));
tcol.g = tcol.r = tcol.b;
}
if (effect & HICTINT_INVERT)
{
// invert
tcol.b = 255-tcol.b;
tcol.g = 255-tcol.g;
tcol.r = 255-tcol.r;
}
if (effect & HICTINT_COLORIZE)
{
// colorize
tcol.b = min((int32_t)((tcol.b)*r)/64,255);
tcol.g = min((int32_t)((tcol.g)*g)/64,255);
tcol.r = min((int32_t)((tcol.r)*b)/64,255);
}
rpptr[x] = tcol;
}
}
if ((!(dameth & DAMETH_CLAMPED)) || facen) //Duplicate texture pixels (wrapping tricks for non power of 2 texture sizes)
{
if (siz.x > tsiz.x) //Copy left to right
{
int32_t *lptr = (int32_t *)pic;
for (y=0; y<tsiz.y; y++,lptr+=siz.x)
Bmemcpy(&lptr[tsiz.x],lptr,(siz.x-tsiz.x)<<2);
}
if (siz.y > tsiz.y) //Copy top to bottom
Bmemcpy(&pic[siz.x*tsiz.y],pic,(siz.y-tsiz.y)*siz.x<<2);
}
if (!glinfo.bgra)
{
for (j=siz.x*siz.y-1; j>=0; j--)
{
swapchar(&pic[j].r, &pic[j].b);
}
}
else texfmt = GL_BGRA;
Bfree(picfil); picfil = 0;
if (tsiz.x>>r_downsize <= tilesiz[dapic].x || tsiz.y>>r_downsize <= tilesiz[dapic].y)
hicr->flags |= (HICR_NOCOMPRESS + HICR_NOSAVE);
if (glinfo.texcompr && glusetexcompr && !(hicr->flags & HICR_NOSAVE))
intexfmt = (hasalpha == 255) ? GL_COMPRESSED_RGB_ARB : GL_COMPRESSED_RGBA_ARB;
else if (hasalpha == 255) intexfmt = GL_RGB;
if ((doalloc&3)==1)
bglGenTextures(1, &pth->glpic); //# of textures (make OpenGL allocate structure)
bglBindTexture(GL_TEXTURE_2D,pth->glpic);
fixtransparency(pic,tsiz,siz,dameth);
uploadtexture(doalloc,siz.x,siz.y,intexfmt,texfmt,pic,-1,tsiz.y,
dameth | DAMETH_HI | (hicr->flags & HICR_NOCOMPRESS ? DAMETH_NOCOMPRESS : 0));
}
// precalculate scaling parameters for replacement
if (facen > 0)
{
pth->scale.x = (float)tsiz.x * (1.0f/64.f);
pth->scale.y = (float)tsiz.y * (1.0f/64.f);
}
else
{
pth->scale.x = (float)tsiz.x / (float)tilesiz[dapic].x;
pth->scale.y = (float)tsiz.y / (float)tilesiz[dapic].y;
}
texture_setup(dameth);
DO_FREE_AND_NULL(pic);
if (tsiz.x>>r_downsize <= tilesiz[dapic].x || tsiz.y>>r_downsize <= tilesiz[dapic].y)
hicr->flags |= HICR_NOCOMPRESS | HICR_NOSAVE;
pth->picnum = dapic;
pth->effects = effect;
pth->flags = TO_PTH_CLAMPED(dameth) | PTH_HIGHTILE | ((facen>0) * PTH_SKYBOX) | ((hasalpha != 255) ? PTH_HASALPHA : 0);
pth->skyface = facen;
pth->hicr = hicr;
if (glinfo.texcompr && glusetexcompr && glusetexcache && !(hicr->flags & HICR_NOSAVE))
if (!gotcache)
{
const int32_t nonpow2 = check_nonpow2(siz.x) || check_nonpow2(siz.y);
// save off the compressed version
cachead.quality = (hicr->flags & HICR_NOCOMPRESS) ? 0 : r_downsize;
cachead.xdim = tsiz.x>>cachead.quality;
cachead.ydim = tsiz.y>>cachead.quality;
// handle nocompress:
cachead.flags = nonpow2*CACHEAD_NONPOW2 |
(hasalpha != 255 ? CACHEAD_HASALPHA : 0) |
(hicr->flags & HICR_NOCOMPRESS ? CACHEAD_NOCOMPRESS : 0);
/// OSD_Printf("Caching \"%s\"\n", fn);
texcache_writetex(fn, picfillen+(dapalnum<<8), dameth, effect, &cachead);
if (willprint)
{
int32_t etime = getticks()-startticks;
if (etime>=MIN_CACHETIME_PRINT)
OSD_Printf("Load tile %4d: p%d-m%d-e%d %s... cached... %d ms\n", dapic, dapalnum, dameth, effect,
willprint==2 ? fn : "", etime);
willprint = 0;
}
else
OSD_Printf("Cached \"%s\"\n", fn);
}
if (willprint)
{
int32_t etime = getticks()-startticks;
if (etime>=MIN_CACHETIME_PRINT)
OSD_Printf("Load tile %4d: p%d-m%d-e%d %s... %d ms\n", dapic, dapalnum, dameth, effect,
willprint==2 ? fn : "", etime);
}
return 0;
}
void polymost_setupdetailtexture(const int32_t texunits, const int32_t tex)
{
bglActiveTextureARB(texunits);
bglEnable(GL_TEXTURE_2D);
bglBindTexture(GL_TEXTURE_2D, tex);
bglTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB);
bglTexEnvf(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_MODULATE);
bglTexEnvf(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PREVIOUS_ARB);
bglTexEnvf(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
bglTexEnvf(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_TEXTURE);
bglTexEnvf(GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, GL_SRC_COLOR);
bglTexEnvf(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_REPLACE);
bglTexEnvf(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_PREVIOUS_ARB);
bglTexEnvf(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_SRC_ALPHA);
bglTexEnvf(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, 2.0f);
bglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
bglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
}
void polymost_setupglowtexture(const int32_t texunits, const int32_t tex)
{
bglActiveTextureARB(texunits);
bglEnable(GL_TEXTURE_2D);
bglBindTexture(GL_TEXTURE_2D, tex);
bglTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB);
bglTexEnvf(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_INTERPOLATE_ARB);
bglTexEnvf(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PREVIOUS_ARB);
bglTexEnvf(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
bglTexEnvf(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_TEXTURE);
bglTexEnvf(GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, GL_SRC_COLOR);
bglTexEnvf(GL_TEXTURE_ENV, GL_SOURCE2_RGB_ARB, GL_TEXTURE);
bglTexEnvf(GL_TEXTURE_ENV, GL_OPERAND2_RGB_ARB, GL_ONE_MINUS_SRC_ALPHA);
bglTexEnvf(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_REPLACE);
bglTexEnvf(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_PREVIOUS_ARB);
bglTexEnvf(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_SRC_ALPHA);
bglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
bglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
}
#endif
//(dpx,dpy) specifies an n-sided polygon. The polygon must be a convex clockwise loop.
// n must be <= 8 (assume clipping can double number of vertices)
//method: 0:solid, 1:masked(255 is transparent), 2:transluscent #1, 3:transluscent #2
// +4 means it's a sprite, so wraparound isn't needed
// drawpoly's hack globals
static int32_t pow2xsplit = 0, skyclamphack = 0;
static float alpha = 0.f;
static inline pthtyp *our_texcache_fetch(int32_t dameth)
{
// r_usetileshades 1 is TX's method.
return texcache_fetch(globalpicnum, globalpal, getpalookup((r_usetileshades == 1) ? globvis>>3 : 0, globalshade), dameth);
}
static void drawpoly(vec2f_t *dpxy, int32_t n, int32_t method)
{
const int32_t method_ = method;
int32_t i, j, k;
vec2_t tsiz;
float f, r, ox, oy, oz, ox2, oy2, oz2, dd[16], uu[16], vv[16], px[16], py[16];
#ifdef YAX_ENABLE
if (g_nodraw) return;
#endif
if (method == -1 || (uint32_t)globalpicnum >= MAXTILES) return;
if (n == 3)
{
if ((dpxy[0].x-dpxy[1].x) * (dpxy[2].y-dpxy[1].y) >=
(dpxy[2].x-dpxy[1].x) * (dpxy[0].y-dpxy[1].y)) return; //for triangle
}
else
{
f = 0; //f is area of polygon / 2
for (i=n-2,j=n-1,k=0; k<n; i=j,j=k,k++)
f += (dpxy[i].x-dpxy[k].x)*dpxy[j].y;
if (f <= 0) return;
}
//Load texture (globalpicnum)
setgotpic(globalpicnum);
tsiz = tilesiz[globalpicnum];
if (palookup[globalpal] == NULL)
globalpal = 0;
if (!waloff[globalpicnum])
{
loadtile(globalpicnum);
if (!waloff[globalpicnum])
{
if (getrendermode() < REND_POLYMOST) return;
tsiz.x = tsiz.y = 1;
method = 1; //Hack to update Z-buffer for invalid mirror textures
}
}
j = 0;
for (i=0; i<n; i++)
{
ox = dpxy[i].x-ghalfx;
oy = dpxy[i].y-ghoriz;
oz = ghalfx;
//Up/down rotation
ox2 = ox;
oy2 = oy*gchang - oz*gshang;
oz2 = oy*gshang + oz*gchang;
//Tilt rotation
ox = ox2*gctang - oy2*gstang;
oy = ox2*gstang + oy2*gctang;
oz = oz2;
r = ghalfx / oz;
dd[j] = (dpxy[i].x*gdx + dpxy[i].y*gdy + gdo)*r;
uu[j] = (dpxy[i].x*gux + dpxy[i].y*guy + guo)*r;
vv[j] = (dpxy[i].x*gvx + dpxy[i].y*gvy + gvo)*r;
px[j] = ox*r + ghalfx;
py[j] = oy*r + ghoriz;
if ((!j) || (px[j] != px[j-1]) || (py[j] != py[j-1])) j++;
}
while ((j >= 3) && (px[j-1] == px[0]) && (py[j-1] == py[0])) j--;
if (j < 3) return;
#ifdef USE_OPENGL
if (getrendermode() >= REND_POLYMOST)
{
float hackscx = 1.f, hackscy = 1.f;
pthtyp *pth, *detailpth, *glowpth;
int32_t texunits = GL_TEXTURE0_ARB;
int32_t xx, yy;
int32_t jj = j;
if (skyclamphack) method |= DAMETH_CLAMPED;
pth = our_texcache_fetch(method&(~3));
if (!pth)
{
if (editstatus)
{
Bsprintf(ptempbuf, "pth==NULL! (bad pal?) pic=%d pal=%d", globalpicnum, globalpal);
polymost_printext256(8,8, editorcolors[15],editorcolors[5], ptempbuf, 0);
}
return;
}
if (pth->flags & PTH_HASFULLBRIGHT && r_fullbrights && indrawroomsandmasks)
{
if (!fullbrightdrawingpass)
fullbrightdrawingpass = 1;
else if (fullbrightdrawingpass == 2)
pth = pth->ofb;
}
// If we aren't rendmode 3, we're in Polymer, which means this code is
// used for rotatesprite only. Polymer handles all the material stuff,
// just submit the geometry and don't mess with textures.
if (getrendermode() == REND_POLYMOST)
{
bglBindTexture(GL_TEXTURE_2D, pth ? pth->glpic : 0);
if (srepeat)
bglTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_REPEAT);
if (trepeat)
bglTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_REPEAT);
}
// texture scale by parkar request
if (pth && pth->hicr && !drawingskybox && ((pth->hicr->scale.x != 1.0f) || (pth->hicr->scale.y != 1.0f)))
{
bglMatrixMode(GL_TEXTURE);
bglLoadIdentity();
bglScalef(pth->hicr->scale.x, pth->hicr->scale.y, 1.0f);
bglMatrixMode(GL_MODELVIEW);
}
// detail texture
detailpth = NULL;
if (r_detailmapping && usehightile && !drawingskybox && hicfindsubst(globalpicnum, DETAILPAL))
detailpth = texcache_fetch(globalpicnum, DETAILPAL, 0, method&(~3));
if (detailpth && detailpth->hicr && (detailpth->hicr->palnum == DETAILPAL))
{
polymost_setupdetailtexture(++texunits, detailpth ? detailpth->glpic : 0);
f = detailpth ? detailpth->hicr->scale.x : 1.f;
bglMatrixMode(GL_TEXTURE);
bglLoadIdentity();
if (pth && pth->hicr && ((pth->hicr->scale.x != 1.0f) || (pth->hicr->scale.y != 1.0f)))
bglScalef(pth->hicr->scale.x, pth->hicr->scale.y, 1.0f);
if (detailpth && detailpth->hicr && ((detailpth->hicr->scale.x != 1.0f) || (detailpth->hicr->scale.y != 1.0f)))
bglScalef(detailpth->hicr->scale.x, detailpth->hicr->scale.y, 1.0f);
bglMatrixMode(GL_MODELVIEW);
}
// glow texture
glowpth = NULL;
if (r_glowmapping && usehightile && !drawingskybox && hicfindsubst(globalpicnum, GLOWPAL))
glowpth = texcache_fetch(globalpicnum, GLOWPAL, 0, method&(~3));
if (glowpth && glowpth->hicr && (glowpth->hicr->palnum == GLOWPAL))
polymost_setupglowtexture(++texunits, glowpth ? glowpth->glpic : 0);
if (pth && (pth->flags & PTH_HIGHTILE))
{
hackscx = pth->scale.x;
hackscy = pth->scale.y;
tsiz.x = pth->siz.x;
tsiz.y = pth->siz.y;
}
xx = tsiz.x;
yy = tsiz.y;
if (!glinfo.texnpot)
{
for (xx=1; xx<tsiz.x; xx+=xx)
{
/* do nothing */
}
for (yy=1; yy<tsiz.y; yy+=yy)
{
/* do nothing */
}
}
ox2 = 1.0f/xx;
oy2 = 1.0f/yy;
if ((!(method&3)) && (!fullbrightdrawingpass))
{
bglDisable(GL_BLEND);
bglDisable(GL_ALPHA_TEST);
}
else
{
float al = 0.f; // PLAG : default alphacut was 0.32 before goodalpha
if (pth && pth->hicr && pth->hicr->alphacut >= 0.f) al = pth->hicr->alphacut;
if (alphahackarray[globalpicnum])
al=alphahackarray[globalpicnum];
if (!waloff[globalpicnum]) al = 0.f; // invalid textures ignore the alpha cutoff settings
bglEnable(GL_BLEND);
bglEnable(GL_ALPHA_TEST);
bglAlphaFunc(GL_GREATER,al);
}
{
float pc[4];
#ifdef POLYMER
if (getrendermode() == REND_POLYMER && pr_artmapping && polymer_eligible_for_artmap(globalpicnum, pth))
pc[0] = pc[1] = pc[2] = 1.0f;
else
#endif
pc[0] = pc[1] = pc[2] = getshadefactor(globalshade);
// spriteext full alpha control
pc[3] = float_trans[method&3] * (1.f - alpha);
// tinting happens only to hightile textures, and only if the texture we're
// rendering isn't for the same palette as what we asked for
if (!(hictinting[globalpal].f & HICTINT_COLORIZE))
{
if (pth && (pth->flags & PTH_HIGHTILE))
{
if (pth->palnum != globalpal)
hictinting_apply(pc, globalpal);
if (have_basepal_tint())
hictinting_apply(pc, MAXPALOOKUPS-1);
}
// hack: this is for drawing the 8-bit crosshair recolored in polymost
else if (hictinting[globalpal].f & HICTINT_USEONART)
hictinting_apply(pc, globalpal);
}
bglColor4f(pc[0],pc[1],pc[2],pc[3]);
}
//Hack for walls&masked walls which use textures that are not a power of 2
if ((pow2xsplit) && (tsiz.x != xx))
{
int32_t nn, ix0, ix1;
float ngdx = 0.f, ngdy = 0.f, ngdo = 0.f, ngux = 0.f, nguy = 0.f, nguo = 0.f, uoffs;
float ngvx = 0.f, ngvy = 0.f, ngvo = 0.f, dp, up, vp, du0 = 0.f, du1 = 0.f, dui, duj;
ox = py[1]-py[2]; oy = py[2]-py[0]; oz = py[0]-py[1];
r = 1.f / (ox*px[0] + oy*px[1] + oz*px[2]);
ngdx = (ox*dd[0] + oy*dd[1] + oz*dd[2])*r;
ngux = (ox*uu[0] + oy*uu[1] + oz*uu[2])*r;
ngvx = (ox*vv[0] + oy*vv[1] + oz*vv[2])*r;
ox = px[2]-px[1]; oy = px[0]-px[2]; oz = px[1]-px[0];
ngdy = (ox*dd[0] + oy*dd[1] + oz*dd[2])*r;
nguy = (ox*uu[0] + oy*uu[1] + oz*uu[2])*r;
ngvy = (ox*vv[0] + oy*vv[1] + oz*vv[2])*r;
ox = px[0]-0.5f; oy = py[0]-0.5f; //.5 centers texture nicely
ngdo = dd[0] - ox*ngdx - oy*ngdy;
nguo = uu[0] - ox*ngux - oy*nguy;
ngvo = vv[0] - ox*ngvx - oy*ngvy;
ngux *= hackscx; nguy *= hackscx; nguo *= hackscx;
ngvx *= hackscy; ngvy *= hackscy; ngvo *= hackscy;
uoffs = ((float)(xx-tsiz.x)*0.5f);
ngux -= ngdx*uoffs;
nguy -= ngdy*uoffs;
nguo -= ngdo*uoffs;
//Find min&max u coordinates (du0...du1)
for (i=0; i<jj; i++)
{
ox = px[i]; oy = py[i];
f = (ox*ngux + oy*nguy + nguo) / (ox*ngdx + oy*ngdy + ngdo);
if (!i) { du0 = du1 = f; continue; }
if (f < du0) du0 = f;
else if (f > du1) du1 = f;
}
f = 1.0f/tsiz.x;
ix0 = Blrintf(floorf(du0*f));
ix1 = Blrintf(floorf(du1*f));
for (; ix0<=ix1; ix0++)
{
du0 = (float)(ix0*tsiz.x); // + uoffs;
du1 = (float)((ix0+1)*tsiz.x); // + uoffs;
i = 0; nn = 0;
duj = (px[i]*ngux + py[i]*nguy + nguo) / (px[i]*ngdx + py[i]*ngdy + ngdo);
do
{
j = i+1; if (j == jj) j = 0;
dui = duj;
duj = (px[j]*ngux + py[j]*nguy + nguo) / (px[j]*ngdx + py[j]*ngdy + ngdo);
if ((du0 <= dui) && (dui <= du1))
{
uu[nn] = px[i];
vv[nn] = py[i];
nn++;
}
//ox*(ngux-ngdx*du1) + oy*(nguy-ngdy*du1) + (nguo-ngdo*du1) = 0
//(px[j]-px[i])*f + px[i] = ox
//(py[j]-py[i])*f + py[i] = oy
///Solve for f
//((px[j]-px[i])*f + px[i])*(ngux-ngdx*du1) +
//((py[j]-py[i])*f + py[i])*(nguy-ngdy*du1) + (nguo-ngdo*du1) = 0
#define DRAWPOLY_MATH_BULLSHIT(X) do { f = -(px[i] *(ngux-ngdx*X) + py[i] *(nguy-ngdy*X) + (nguo-ngdo*X)) / ((px[j]-px[i])*(ngux-ngdx*X) + (py[j]-py[i])*(nguy-ngdy*X)); \
uu[nn] = (px[j]-px[i])*f + px[i]; vv[nn] = (py[j]-py[i])*f + py[i]; nn++; } while (0)
if (duj <= dui)
{
if ((du1 < duj) != (du1 < dui))
DRAWPOLY_MATH_BULLSHIT(du1);
if ((du0 < duj) != (du0 < dui))
DRAWPOLY_MATH_BULLSHIT(du0);
}
else
{
if ((du0 < duj) != (du0 < dui))
DRAWPOLY_MATH_BULLSHIT(du0);
if ((du1 < duj) != (du1 < dui))
DRAWPOLY_MATH_BULLSHIT(du1);
}
i = j;
#undef DRAWPOLY_MATH_BULLSHIT
}
while (i);
if (nn < 3) continue;
bglBegin(GL_TRIANGLE_FAN);
for (i=0; i<nn; i++)
{
ox = uu[i]; oy = vv[i];
dp = ox*ngdx + oy*ngdy + ngdo;
up = ox*ngux + oy*nguy + nguo;
vp = ox*ngvx + oy*ngvy + ngvo;
r = 1.f/dp;
if (texunits > GL_TEXTURE0_ARB)
{
j = GL_TEXTURE0_ARB;
while (j <= texunits)
bglMultiTexCoord2fARB(j++, (up*r-du0+uoffs)*ox2,vp*r*oy2);
}
else
bglTexCoord2f((up*r-du0+uoffs)*ox2,vp*r*oy2);
bglVertex3f((ox-ghalfx)*r*grhalfxdown10x,(ghoriz-oy)*r*grhalfxdown10,r*(1.f/1024.f));
}
bglEnd();
}
}
else
{
ox2 *= hackscx; oy2 *= hackscy;
bglBegin(GL_TRIANGLE_FAN);
for (i=0; i<jj; i++)
{
r = 1.f/dd[i];
if (texunits > GL_TEXTURE0_ARB)
{
j = GL_TEXTURE0_ARB;
while (j <= texunits)
bglMultiTexCoord2fARB(j++, uu[i]*r*ox2,vv[i]*r*oy2);
}
else
bglTexCoord2f(uu[i]*r*ox2,vv[i]*r*oy2);
bglVertex3f((px[i]-ghalfx)*r*grhalfxdown10x,(ghoriz-py[i])*r*grhalfxdown10,r*(1.f/1024.f));
}
bglEnd();
}
while (texunits >= GL_TEXTURE0_ARB)
{
bglActiveTextureARB(texunits);
bglMatrixMode(GL_TEXTURE);
bglLoadIdentity();
bglMatrixMode(GL_MODELVIEW);
if (texunits > GL_TEXTURE0_ARB)
{
bglTexEnvf(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, 1.0f);
bglDisable(GL_TEXTURE_2D);
}
texunits--;
}
if (getrendermode() == REND_POLYMOST)
{
if (srepeat)
bglTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,glinfo.clamptoedge?GL_CLAMP_TO_EDGE:GL_CLAMP);
if (trepeat)
bglTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,glinfo.clamptoedge?GL_CLAMP_TO_EDGE:GL_CLAMP);
}
if (fullbrightdrawingpass == 1) // tile has fullbright colors ?
{
int32_t shadeforfullbrightpass = globalshade; // save the current shade
fullbrightdrawingpass = 2;
globalshade = -128; // fullbright
bglDisable(GL_FOG);
drawpoly(dpxy, n, method_); // draw them afterwards, then. :)
bglEnable(GL_FOG);
globalshade = shadeforfullbrightpass;
fullbrightdrawingpass = 0;
}
return;
}
#endif
}
static void vsp_finalize_init(vsptyp *vsp, int32_t vcnt)
{
int32_t i;
for (i=0; i<vcnt; i++)
{
vsp[i].cy[1] = vsp[i+1].cy[0]; vsp[i].ctag = i;
vsp[i].fy[1] = vsp[i+1].fy[0]; vsp[i].ftag = i;
vsp[i].n = i+1; vsp[i].p = i-1;
// vsp[i].tag = -1;
}
vsp[vcnt-1].n = 0; vsp[0].p = vcnt-1;
//VSPMAX-1 is dummy empty node
for (i=vcnt; i<VSPMAX; i++) { vsp[i].n = i+1; vsp[i].p = i-1; }
vsp[VSPMAX-1].n = vcnt; vsp[vcnt].p = VSPMAX-1;
}
static inline void vsdel(vsptyp *vsp, int32_t i)
{
//Delete i
vsp[vsp[i].n].p = vsp[i].p;
vsp[vsp[i].p].n = vsp[i].n;
//Add i to empty list
vsp[i].n = vsp[VSPMAX-1].n;
vsp[i].p = VSPMAX-1;
vsp[vsp[VSPMAX-1].n].p = i;
vsp[VSPMAX-1].n = i;
}
static inline int32_t vsinsaft(vsptyp *vsp, int32_t i)
{
//i = next element from empty list
int32_t r = vsp[VSPMAX-1].n;
vsp[vsp[r].n].p = VSPMAX-1;
vsp[VSPMAX-1].n = vsp[r].n;
vsp[r] = vsp[i]; //copy i to r
//insert r after i
vsp[r].p = i; vsp[r].n = vsp[i].n;
vsp[vsp[i].n].p = r; vsp[i].n = r;
return(r);
}
static int32_t domostpolymethod = 0;
void domost(float x0, float y0, float x1, float y1)
{
vec2f_t dpxy[4], n0, n1;
float slop, dx;
float spx[4], /*spy[4],*/ cy[2], cv[2];
int32_t i, k, z, vcnt = 0, scnt, newi, dir = 0, spt[4];
alpha = 0.f;
if (x0 < x1)
{
dir = 1; //clip dmost (floor)
y0 -= .01f;
y1 -= .01f;
}
else
{
if (x0 == x1) return;
swapfloat(&x0, &x1);
swapfloat(&y0, &y1);
//dir = 0; //clip umost (ceiling)
//y0 += .01; y1 += .01; //necessary?
}
slop = (y1-y0)/(x1-x0);
for (i=vsp[0].n; i; i=newi)
{
newi = vsp[i].n; n0.x = vsp[i].x; n1.x = vsp[newi].x;
if ((x0 >= n1.x) || (n0.x >= x1) || (vsp[i].ctag <= 0)) continue;
dx = n1.x-n0.x;
cy[0] = vsp[i].cy[0]; cv[0] = vsp[i].cy[1]-cy[0];
cy[1] = vsp[i].fy[0]; cv[1] = vsp[i].fy[1]-cy[1];
scnt = 0;
//Test if left edge requires split (x0,y0) (nx0,cy(0)),<dx,cv(0)>
if ((x0 > n0.x) && (x0 < n1.x))
{
const float t = (x0-n0.x)*cv[dir] - (y0-cy[dir])*dx;
if (((!dir) && (t < 0.f)) || ((dir) && (t > 0.f)))
{ spx[scnt] = x0; /*spy[scnt] = y0;*/ spt[scnt] = -1; scnt++; }
}
//Test for intersection on umost (0) and dmost (1)
{
const float d[2] ={
((y0-y1) * dx) - ((x0-x1) * cv[0]),
((y0-y1) * dx) - ((x0-x1) * cv[1])
};
const float n[2] ={
((y0-cy[0]) * dx) - ((x0-n0.x) * cv[0]),
((y0-cy[1]) * dx) - ((x0-n0.x) * cv[1])
};
const float fnx[2] ={
x0 + ((n[0]/d[0]) * (x1-x0)),
x0 + ((n[1]/d[1]) * (x1-x0))
};
if ((Bfabsf(d[0]) > Bfabsf(n[0])) && (d[0] * n[0] >= 0.f) && (fnx[0] > n0.x) && (fnx[0] < n1.x))
spx[scnt] = fnx[0], spt[scnt++] = 0;
if ((Bfabsf(d[1]) > Bfabsf(n[1])) && (d[1] * n[1] >= 0.f) && (fnx[1] > n0.x) && (fnx[1] < n1.x))
spx[scnt] = fnx[1], spt[scnt++] = 1;
}
//Nice hack to avoid full sort later :)
if ((scnt >= 2) && (spx[scnt-1] < spx[scnt-2]))
{
swapfloat(&spx[scnt-1], &spx[scnt-2]);
swaplong(&spt[scnt-1], &spt[scnt-2]);
/* f = spy[scnt-1]; spy[scnt-1] = spy[scnt-2]; spy[scnt-2] = f; */
}
//Test if right edge requires split
if ((x1 > n0.x) && (x1 < n1.x))
{
const float t = (x1-n0.x)*cv[dir] - (y1-cy[dir])*dx;
if (((!dir) && (t < 0)) || ((dir) && (t > 0)))
{ spx[scnt] = x1; /* spy[scnt] = y1; */ spt[scnt] = -1; scnt++; }
}
vsp[i].tag = vsp[newi].tag = -1;
dx = 1.f/dx;
for (z=0; z<=scnt; z++,i=vcnt)
{
float dx0, dx1, t;
int32_t ni;
if (z == scnt)
goto skip;
t = (spx[z]-n0.x)*dx;
vcnt = vsinsaft(vsp, i);
vsp[i].cy[1] = t*cv[0] + cy[0];
vsp[i].fy[1] = t*cv[1] + cy[1];
vsp[vcnt].x = spx[z];
vsp[vcnt].cy[0] = vsp[i].cy[1];
vsp[vcnt].fy[0] = vsp[i].fy[1];
vsp[vcnt].tag = spt[z];
skip:
ni = vsp[i].n; if (!ni) continue; //this 'if' fixes many bugs!
dx0 = vsp[i].x; if (x0 > dx0) continue;
dx1 = vsp[ni].x; if (x1 < dx1) continue;
n0.y = (dx0-x0)*slop + y0;
n1.y = (dx1-x0)*slop + y0;
// dx0 dx1
// ~ ~
//----------------------------
// t0+=0 t1+=0
// vsp[i].cy[0] vsp[i].cy[1]
//============================
// t0+=1 t1+=3
//============================
// vsp[i].fy[0] vsp[i].fy[1]
// t0+=2 t1+=6
//
// ny0 ? ny1 ?
k = 1+3;
if ((vsp[i].tag == 0) || (n0.y <= vsp[i].cy[0]+.01f)) k--;
if ((vsp[i].tag == 1) || (n0.y >= vsp[i].fy[0]-.01f)) k++;
if ((vsp[ni].tag == 0) || (n1.y <= vsp[i].cy[1]+.01f)) k -= 3;
if ((vsp[ni].tag == 1) || (n1.y >= vsp[i].fy[1]-.01f)) k += 3;
dpxy[0].x = dx0;
dpxy[1].x = dx1;
if (!dir)
{
dpxy[0].y = vsp[i].cy[0];
dpxy[1].y = vsp[i].cy[1];
switch (k)
{
case 4:
case 5:
case 7:
dpxy[2].x = dx1; dpxy[3].x = dx0;
dpxy[2].y = n1.y; dpxy[3].y = n0.y;
vsp[i].cy[0] = n0.y; vsp[i].cy[1] = n1.y; vsp[i].ctag = gtag;
drawpoly(dpxy, 4, domostpolymethod);
break;
case 1:
case 2:
dpxy[2].x = dx0;
dpxy[2].y = n0.y;
vsp[i].cy[0] = n0.y; vsp[i].ctag = gtag;
drawpoly(dpxy, 3, domostpolymethod);
break;
case 3:
case 6:
dpxy[2].x = dx1;
dpxy[2].y = n1.y;
vsp[i].cy[1] = n1.y; vsp[i].ctag = gtag;
drawpoly(dpxy, 3, domostpolymethod);
break;
case 8:
dpxy[2].x = dx1; dpxy[2].y = vsp[i].fy[1];
dpxy[3].x = dx0; dpxy[3].y = vsp[i].fy[0];
vsp[i].ctag = vsp[i].ftag = -1;
drawpoly(dpxy, 4, domostpolymethod);
default:
break;
}
}
else
{
switch (k)
{
case 4:
case 3:
case 1:
dpxy[2].x = dx1; dpxy[3].x = dx0;
dpxy[0].y = n0.y; dpxy[1].y = n1.y; dpxy[2].y = vsp[i].fy[1]; dpxy[3].y = vsp[i].fy[0];
vsp[i].fy[0] = n0.y; vsp[i].fy[1] = n1.y; vsp[i].ftag = gtag;
drawpoly(dpxy, 4, domostpolymethod);
break;
case 7:
case 6:
dpxy[2].x = dx0;
dpxy[0].y = n0.y; dpxy[1].y = vsp[i].fy[1]; dpxy[2].y = vsp[i].fy[0];
vsp[i].fy[0] = n0.y; vsp[i].ftag = gtag;
drawpoly(dpxy, 3, domostpolymethod);
break;
case 5:
case 2:
dpxy[2].x = dx1;
dpxy[0].y = vsp[i].fy[0]; dpxy[1].y = n1.y; dpxy[2].y = vsp[i].fy[1];
vsp[i].fy[1] = n1.y; vsp[i].ftag = gtag;
drawpoly(dpxy, 3, domostpolymethod);
break;
case 0:
dpxy[2].x = dx1; dpxy[3].x = dx0;
dpxy[0].y = vsp[i].cy[0]; dpxy[1].y = vsp[i].cy[1]; dpxy[2].y = vsp[i].fy[1]; dpxy[3].y = vsp[i].fy[0];
vsp[i].ctag = vsp[i].ftag = -1;
drawpoly(dpxy, 4, domostpolymethod);
default:
break;
}
}
}
}
gtag++;
//Combine neighboring vertical strips with matching collinear top&bottom edges
//This prevents x-splits from propagating through the entire scan
i = vsp[0].n;
while (i)
{
int32_t ni = vsp[i].n;
if ((vsp[i].cy[0] >= vsp[i].fy[0]) && (vsp[i].cy[1] >= vsp[i].fy[1]))
vsp[i].ctag = vsp[i].ftag = -1;
if ((vsp[i].ctag == vsp[ni].ctag) && (vsp[i].ftag == vsp[ni].ftag))
{
vsp[i].cy[1] = vsp[ni].cy[1];
vsp[i].fy[1] = vsp[ni].fy[1];
vsdel(vsp, ni);
}
else i = ni;
}
}
void polymost_editorfunc(void)
{
vec3_t v;
vec3f_t o, o2;
int32_t cz, fz;
hitdata_t hit;
vec3_t vect;
const float ratio = get_projhack_ratio();
o2.x = (searchx-ghalfx)/ratio;
o2.y = (searchy-ghoriz)/ratio; // ghoriz is (ydimen>>1) here
o2.z = ghalfx;
//Tilt rotation
o.x = o2.x*gctang + o2.y*gstang;
o.y = o2.y*gctang - o2.x*gstang;
o.z = o2.z;
//Up/down rotation
o2.x = o.z*gchang - o.y*gshang;
o2.y = o.x;
o2.z = o.y*gchang + o.z*gshang;
//Standard Left/right rotation
v.x = Blrintf (o2.x*fcosglobalang - o2.y*fsinglobalang);
v.y = Blrintf (o2.x*fsinglobalang + o2.y*fcosglobalang);
v.z = Blrintf (o2.z*16384.f);
vect.x = globalposx;
vect.y = globalposy;
vect.z = globalposz;
hitallsprites = 1;
hitscan((const vec3_t *) &vect, globalcursectnum, //Start position
v.x>>10, v.y>>10, v.z>>6, &hit, 0xffff0030);
if (hit.sect != -1) // if hitsect is -1, hitscan overflowed somewhere
{
getzsofslope(hit.sect, hit.pos.x, hit.pos.y, &cz, &fz);
hitallsprites = 0;
searchsector = hit.sect;
if (hit.pos.z<cz) searchstat = 1;
else if (hit.pos.z>fz) searchstat = 2;
else if (hit.wall >= 0)
{
searchbottomwall = searchwall = hit.wall; searchstat = 0;
if (wall[hit.wall].nextwall >= 0)
{
int32_t cz, fz;
getzsofslope(wall[hit.wall].nextsector, hit.pos.x, hit.pos.y, &cz, &fz);
if (hit.pos.z > fz)
{
searchisbottom = 1;
if (wall[hit.wall].cstat&2) //'2' bottoms of walls
searchbottomwall = wall[hit.wall].nextwall;
}
else
{
searchisbottom = 0;
if ((hit.pos.z > cz) && (wall[hit.wall].cstat&(16+32))) //masking or 1-way
searchstat = 4;
}
}
}
else if (hit.sprite >= 0) { searchwall = hit.sprite; searchstat = 3; }
else
{
int32_t cz, fz;
getzsofslope(hit.sect, hit.pos.x, hit.pos.y, &cz, &fz);
if ((hit.pos.z<<1) < cz+fz) searchstat = 1; else searchstat = 2;
//if (vz < 0) searchstat = 1; else searchstat = 2; //Won't work for slopes :/
}
if (preview_mouseaim && spritesortcnt < MAXSPRITESONSCREEN)
{
spritetype *tsp = &tsprite[spritesortcnt];
double dadist, x, y, z;
Bmemcpy(tsp, &hit.pos, sizeof(vec3_t));
x = tsp->x-globalposx; y=tsp->y-globalposy; z=(tsp->z-globalposz)/16.0;
dadist = Bsqrt(x*x + y*y + z*z);
tsp->sectnum = hit.sect;
tsp->picnum = 2523; // CROSSHAIR
tsp->cstat = 128;
tsp->owner = MAXSPRITES-1;
tsp->xrepeat = tsp->yrepeat = min(max(1, (int32_t) (dadist*48.0/3200.0)), 255);
sprite[tsp->owner].xoffset = sprite[tsp->owner].yoffset = 0;
tspriteptr[spritesortcnt++] = tsp;
}
if ((searchstat==1 || searchstat==2) && searchsector>=0)
{
int32_t scrv[2] ={ (v.x>>12), (v.y>>12) };
int32_t scrv_r[2] ={ scrv[1], -scrv[0] };
walltype *wal = &wall[sector[searchsector].wallptr];
uint64_t wdistsq, bestwdistsq=0x7fffffff;
int32_t k, bestk=-1;
for (k=0; k<sector[searchsector].wallnum; k++)
{
int32_t w1[2] ={ wal[k].x, wal[k].y };
int32_t w2[2] ={ wall[wal[k].point2].x, wall[wal[k].point2].y };
int32_t w21[2] ={ w1[0]-w2[0], w1[1]-w2[1] };
int32_t pw1[2] ={ w1[0]-hit.pos.x, w1[1]-hit.pos.y };
int32_t pw2[2] ={ w2[0]-hit.pos.x, w2[1]-hit.pos.y };
float w1d = (float) (scrv_r[0]*pw1[0] + scrv_r[1]*pw1[1]);
float w2d = (float) (scrv_r[0]*pw2[0] + scrv_r[1]*pw2[1]);
int32_t ptonline[2], scrp[2];
int64_t t1, t2;
w2d = -w2d;
if ((w1d==0 && w2d==0) || (w1d<0 || w2d<0))
continue;
ptonline[0] = (int32_t) (w2[0]+(w2d/(w1d+w2d))*w21[0]);
ptonline[1] = (int32_t) (w2[1]+(w2d/(w1d+w2d))*w21[1]);
scrp[0] = ptonline[0]-vect.x;
scrp[1] = ptonline[1]-vect.y;
if (scrv[0]*scrp[0] + scrv[1]*scrp[1] <= 0)
continue;
t1=scrp[0]; t2=scrp[1];
wdistsq = t1*t1 + t2*t2;
if (wdistsq < bestwdistsq)
{
bestk = k;
bestwdistsq = wdistsq;
}
}
if (bestk >= 0)
searchwall = sector[searchsector].wallptr + bestk;
}
}
searchit = 0;
}
void polymost_scansector(int32_t sectnum);
// variables that are set to ceiling- or floor-members, depending
// on which one is processed right now
static int32_t global_cf_z;
static float global_cf_xpanning, global_cf_ypanning, global_cf_heinum;
static int32_t global_cf_shade, global_cf_pal, global_cf_fogpal;
static int32_t (*global_getzofslope_func)(int16_t, int32_t, int32_t);
static void polymost_internal_nonparallaxed(float nx0, float ny0, float nx1, float ny1, float ryp0, float ryp1,
float x0, float x1, float cf_y0, float cf_y1, int32_t have_floor,
int32_t sectnum)
{
float ft[4], fx, fy, ox, oy, oz, ox2, oy2;
int32_t i;
const sectortype *sec = &sector[sectnum];
// comments from floor code:
//(singlobalang/-16384*(sx-ghalfx) + 0*(sy-ghoriz) + (cosviewingrangeglobalang/16384)*ghalfx)*d + globalposx = u*16
//(cosglobalang/ 16384*(sx-ghalfx) + 0*(sy-ghoriz) + (sinviewingrangeglobalang/16384)*ghalfx)*d + globalposy = v*16
//( 0*(sx-ghalfx) + 1*(sy-ghoriz) + ( 0)*ghalfx)*d + globalposz/16 = (sec->floorz/16)
if (!(globalorientation&64))
{ ft[0] = fglobalposx; ft[1] = fglobalposy; ft[2] = fcosglobalang; ft[3] = fsinglobalang; }
else
{
float r;
//relative alignment
fx = (float)(wall[wall[sec->wallptr].point2].x-wall[sec->wallptr].x);
fy = (float)(wall[wall[sec->wallptr].point2].y-wall[sec->wallptr].y);
r = polymost_invsqrt(fx*fx+fy*fy); fx *= r; fy *= r;
ft[2] = fcosglobalang*fx + fsinglobalang*fy;
ft[3] = fsinglobalang*fx - fcosglobalang*fy;
ft[0] = ((float)(globalposx-wall[sec->wallptr].x))*fx + ((float)(globalposy-wall[sec->wallptr].y))*fy;
ft[1] = ((float)(globalposy-wall[sec->wallptr].y))*fx - ((float)(globalposx-wall[sec->wallptr].x))*fy;
if (!(globalorientation&4)) globalorientation ^= 32; else globalorientation ^= 16;
}
gdx = 0;
gdy = gxyaspect;
if (!(globalorientation&2))
if (global_cf_z-globalposz) // PK 2012: don't allow div by zero
gdy /= (double)(global_cf_z-globalposz);
gdo = -ghoriz*gdy;
if (globalorientation&8) { ft[0] *= (1.f/8.f); ft[1] *= (-1.f/8.f); ft[2] *= (1.f/2097152.f); ft[3] *= (1.0f/2097152.f); }
else { ft[0] *= (1.0f/16.f); ft[1] *= (-1.0f/16.f); ft[2] *= (1.0f/4194304.f); ft[3] *= (1.0f/4194304.f); }
gux = ft[3]*((double)viewingrange)*(-1.0/65536.0);
gvx = ft[2]*((double)viewingrange)*(-1.0/65536.0);
guy = ft[0]*gdy; gvy = ft[1]*gdy;
guo = ft[0]*gdo; gvo = ft[1]*gdo;
guo += (ft[2]-gux)*ghalfx;
gvo -= (ft[3]+gvx)*ghalfx;
//Texture flipping
if (globalorientation&4)
{
double r;
r = gux; gux = gvx; gvx = r;
r = guy; guy = gvy; gvy = r;
r = guo; guo = gvo; gvo = r;
}
if (globalorientation&16) { gux = -gux; guy = -guy; guo = -guo; }
if (globalorientation&32) { gvx = -gvx; gvy = -gvy; gvo = -gvo; }
//Texture panning
fx = global_cf_xpanning*((float)(1<<(picsiz[globalpicnum]&15)))*(1.0f/256.f);
fy = global_cf_ypanning*((float)(1<<(picsiz[globalpicnum]>>4)))*(1.0f/256.f);
if ((globalorientation&(2+64)) == (2+64)) //Hack for panning for slopes w/ relative alignment
{
float r = global_cf_heinum * (1.0f/4096.f); r = polymost_invsqrt(r*r+1);
if (!(globalorientation&4)) fy *= r; else fx *= r;
}
guy += gdy*fx; guo += gdo*fx;
gvy += gdy*fy; gvo += gdo*fy;
if (globalorientation&2) //slopes
{
double px[3], py[3];
float dd[3], uu[3], vv[3];
float r;
px[0] = x0; py[0] = ryp0 + (double)ghoriz;
px[1] = x1; py[1] = ryp1 + (double)ghoriz;
//Pick some point guaranteed to be not collinear to the 1st two points
ox = nx0 + (ny1-ny0);
oy = ny0 + (nx0-nx1);
ox2 = (oy-fglobalposy)*gcosang - (ox-fglobalposx)*gsinang ;
oy2 = (ox-fglobalposx)*gcosang2 + (oy-fglobalposy)*gsinang2;
oy2 = 1.f/oy2;
px[2] = ghalfx*ox2*oy2 + ghalfx; oy2 *= gyxscale;
py[2] = oy2 + (double)ghoriz;
for (i=0; i<3; i++)
{
dd[i] = px[i]*gdx + py[i]*gdy + gdo;
uu[i] = px[i]*gux + py[i]*guy + guo;
vv[i] = px[i]*gvx + py[i]*gvy + gvo;
}
py[0] = cf_y0;
py[1] = cf_y1;
py[2] = (double)((float)(global_getzofslope_func(sectnum,Blrintf(ox),Blrintf(oy))-globalposz)*oy2 + ghoriz);
ox = py[1]-py[2]; oy = py[2]-py[0]; oz = py[0]-py[1];
r = 1.0 / (ox*px[0] + oy*px[1] + oz*px[2]);
gdx = (ox*dd[0] + oy*dd[1] + oz*dd[2])*r;
gux = (ox*uu[0] + oy*uu[1] + oz*uu[2])*r;
gvx = (ox*vv[0] + oy*vv[1] + oz*vv[2])*r;
ox = px[2]-px[1]; oy = px[0]-px[2]; oz = px[1]-px[0];
gdy = (ox*dd[0] + oy*dd[1] + oz*dd[2])*r;
guy = (ox*uu[0] + oy*uu[1] + oz*uu[2])*r;
gvy = (ox*vv[0] + oy*vv[1] + oz*vv[2])*r;
gdo = dd[0] - px[0]*gdx - py[0]*gdy;
guo = uu[0] - px[0]*gux - py[0]*guy;
gvo = vv[0] - px[0]*gvx - py[0]*gvy;
if (globalorientation&64) //Hack for relative alignment on slopes
{
r = global_cf_heinum * (1.0f / 4096.f);
r = Bsqrtf(r*r+1);
if (!(globalorientation&4)) { gvx *= r; gvy *= r; gvo *= r; }
else { gux *= r; guy *= r; guo *= r; }
}
}
domostpolymethod = (globalorientation>>7)&3;
pow2xsplit = 0;
alpha = 0.f;
calc_and_apply_fog(globalpicnum, fogpal_shade(sec, global_cf_shade), sec->visibility,
POLYMOST_CHOOSE_FOG_PAL(global_cf_fogpal, global_cf_pal));
if (have_floor)
{
if (globalposz >= getflorzofslope(sectnum, globalposx, globalposy))
domostpolymethod = -1; //Back-face culling
domost(x0, cf_y0, x1, cf_y1); //flor
}
else
{
if (globalposz <= getceilzofslope(sectnum, globalposx, globalposy))
domostpolymethod = -1; //Back-face culling
domost(x1, cf_y1, x0, cf_y0); //ceil
}
domostpolymethod = 0;
}
static void calc_ypanning(int32_t refposz, float ryp0, float ryp1,
float x0, float x1, uint8_t ypan, uint8_t yrepeat,
int32_t dopancor)
{
int32_t i;
float t0, t1, t, fy;
t0 = ((float)(refposz-globalposz))*ryp0 + ghoriz;
t1 = ((float)(refposz-globalposz))*ryp1 + ghoriz;
t = ((gdx*x0 + gdo) * (float)yrepeat) / ((x1-x0) * ryp0 * 2048.f);
i = (1<<(picsiz[globalpicnum]>>4)); if (i < tilesiz[globalpicnum].y) i <<= 1;
#ifdef NEW_MAP_FORMAT
if (g_loadedMapVersion >= 10)
i = tilesiz[globalpicnum].y;
else
#endif
if (polymost_is_npotmode())
{
t *= (float)tilesiz[globalpicnum].y / i;
i = tilesiz[globalpicnum].y;
}
else if (dopancor)
{
// Carry out panning "correction" to make it look like classic in some
// cases, but failing in the general case.
int32_t yoffs = Blrintf((i-tilesiz[globalpicnum].y)*(255.f/i));
if (ypan > 256-yoffs)
ypan -= yoffs;
}
fy = (float) (ypan * i) * (1.f/256.f);
gvx = (t0-t1)*t;
gvy = (x1-x0)*t;
gvo = -gvx*x0 - gvy*t0 + fy*gdo; gvx += fy*gdx; gvy += fy*gdy;
}
static inline int32_t testvisiblemost(float x0, float x1)
{
int32_t i, newi;
for (i=vsp[0].n; i; i=newi)
{
newi = vsp[i].n;
if ((x0 < vsp[newi].x) && (vsp[i].x < x1) && (vsp[i].ctag >= 0)) return(1);
}
return(0);
}
static void polymost_drawalls(int32_t bunch)
{
sectortype *sec, *nextsec;
walltype *wal, *wal2, *nwal;
float ox, oy, oz, dd[3], vv[3];
float fx, x0, x1, cy0, cy1, fy0, fy1, xp0, yp0, xp1, yp1, ryp0, ryp1, nx0, ny0, nx1, ny1;
float t, r, t0, t1, ocy0, ocy1, ofy0, ofy1, oxp0, oyp0, ft[4];
float oguo, ogux, oguy;
int32_t i, x, y, z, cz, fz, wallnum, sectnum, nextsectnum;
int32_t dapskybits;
const int8_t *dapskyoff;
alpha = 0.f;
sectnum = thesector[bunchfirst[bunch]]; sec = &sector[sectnum];
//DRAW WALLS SECTION!
for (z=bunchfirst[bunch]; z>=0; z=bunchp2[z])
{
wallnum = thewall[z]; wal = &wall[wallnum]; wal2 = &wall[wal->point2];
nextsectnum = wal->nextsector;
nextsec = nextsectnum>=0 ? &sector[nextsectnum] : NULL;
#ifdef YAX_ENABLE
if (yax_nomaskpass==1 && yax_isislandwall(wallnum, !yax_globalcf) && (yax_nomaskdidit=1))
continue;
#endif
//Offset&Rotate 3D coordinates to screen 3D space
x = wal->x-globalposx; y = wal->y-globalposy;
xp0 = (float)y*gcosang - (float)x*gsinang;
yp0 = (float)x*gcosang2 + (float)y*gsinang2;
x = wal2->x-globalposx; y = wal2->y-globalposy;
xp1 = (float)y*gcosang - (float)x*gsinang;
yp1 = (float)x*gcosang2 + (float)y*gsinang2;
oxp0 = xp0; oyp0 = yp0;
//Clip to close parallel-screen plane
if (yp0 < SCISDIST)
{
if (yp1 < SCISDIST) continue;
t0 = (SCISDIST-yp0)/(yp1-yp0); xp0 = (xp1-xp0)*t0+xp0; yp0 = SCISDIST;
nx0 = (wal2->x-wal->x)*t0+wal->x;
ny0 = (wal2->y-wal->y)*t0+wal->y;
}
else { t0 = 0.f; nx0 = (float)wal->x; ny0 = (float)wal->y; }
if (yp1 < SCISDIST)
{
t1 = (SCISDIST-oyp0)/(yp1-oyp0); xp1 = (xp1-oxp0)*t1+oxp0; yp1 = SCISDIST;
nx1 = (wal2->x-wal->x)*t1+wal->x;
ny1 = (wal2->y-wal->y)*t1+wal->y;
}
else { t1 = 1.f; nx1 = (float)wal2->x; ny1 = (float)wal2->y; }
ryp0 = 1.f/yp0; ryp1 = 1.f/yp1;
//Generate screen coordinates for front side of wall
x0 = ghalfx*xp0*ryp0 + ghalfx;
x1 = ghalfx*xp1*ryp1 + ghalfx;
if (x1 <= x0) continue;
ryp0 *= gyxscale; ryp1 *= gyxscale;
getzsofslope(sectnum,Blrintf(nx0),Blrintf(ny0),&cz,&fz);
cy0 = ((float)(cz-globalposz))*ryp0 + ghoriz;
fy0 = ((float)(fz-globalposz))*ryp0 + ghoriz;
getzsofslope(sectnum,Blrintf(nx1),Blrintf(ny1),&cz,&fz);
cy1 = ((float)(cz-globalposz))*ryp1 + ghoriz;
fy1 = ((float)(fz-globalposz))*ryp1 + ghoriz;
globalpicnum = sec->floorpicnum; globalshade = sec->floorshade; globalpal = (int32_t)((uint8_t)sec->floorpal);
globalorientation = sec->floorstat;
globvis = globalcisibility;
if (sector[sectnum].visibility != 0) globvis = mulscale4(globvis, (uint8_t)(sector[sectnum].visibility+16));
DO_TILE_ANIM(globalpicnum, sectnum);
dapskyoff = getpsky(globalpicnum, NULL, &dapskybits);
global_cf_fogpal = sec->fogpal;
global_cf_shade = sec->floorshade, global_cf_pal = sec->floorpal; global_cf_z = sec->floorz; // REFACT
global_cf_xpanning = sec->floorxpanning; global_cf_ypanning = sec->floorypanning, global_cf_heinum = sec->floorheinum;
global_getzofslope_func = &getflorzofslope;
if (!(globalorientation&1))
{
#ifdef YAX_ENABLE
if (globalposz <= sec->floorz || yax_getbunch(sectnum, YAX_FLOOR) < 0 || yax_getnextwall(wallnum, YAX_FLOOR) >= 0)
#endif
polymost_internal_nonparallaxed(nx0, ny0, nx1, ny1, ryp0, ryp1, x0, x1, fy0, fy1, 1, sectnum);
}
else if ((nextsectnum < 0) || (!(sector[nextsectnum].floorstat&1)))
{
//Parallaxing sky... hacked for Ken's mountain texture; paper-sky only :/
#ifdef USE_OPENGL
if (getrendermode() >= REND_POLYMOST)
{
calc_and_apply_fog_factor(sec->floorpicnum, sec->floorshade, sec->visibility, sec->floorpal, 0.005f);
//Use clamping for tiled sky textures
for (i=(1<<dapskybits)-1; i>0; i--)
if (dapskyoff[i] != dapskyoff[i-1])
{ skyclamphack = r_parallaxskyclamping; break; }
}
#endif
if (bpp == 8 || !usehightile || !hicfindskybox(globalpicnum, globalpal))
{
// g_nodraw = 1;
dd[0] = fxdimen*.0000001f; //Adjust sky depth based on screen size!
t = (float)((1<<(picsiz[globalpicnum]&15))<<dapskybits);
vv[1] = dd[0]*((float)xdimscale*fviewingrange) * (1.f/(65536.f*65536.f));
vv[0] = dd[0]*((float) ((tilesiz[globalpicnum].y>>1)/*+g_psky.yoffs*/)) - vv[1]*ghoriz;
i = (1<<(picsiz[globalpicnum]>>4)); if (i != tilesiz[globalpicnum].y) i += i;
//Hack to draw black rectangle below sky when looking down...
gdx = 0; gdy = gxyaspect * (1.f/262144.f); gdo = -ghoriz*gdy;
gux = 0; guy = 0; guo = 0;
gvx = 0; gvy = (float)(tilesiz[globalpicnum].y-1)*gdy; gvo = (float)(tilesiz[globalpicnum].y-1)*gdo;
oy = ((float)tilesiz[globalpicnum].y*dd[0]-vv[0])/vv[1];
if ((oy > fy0) && (oy > fy1)) domost(x0,oy,x1,oy);
else if ((oy > fy0) != (oy > fy1))
{
// fy0 fy1
// \ /
//oy---------- oy----------
// \ /
// fy1 fy0
ox = (oy-fy0)*(x1-x0)/(fy1-fy0) + x0;
if (oy > fy0) { domost(x0,oy,ox,oy); domost(ox,oy,x1,fy1); }
else { domost(x0,fy0,ox,oy); domost(ox,oy,x1,oy); }
}
else domost(x0,fy0,x1,fy1);
if (r_parallaxskypanning)
vv[0] += dd[0]*((float)sec->floorypanning)*((float)i)*(1.f/256.f);
gdx = 0; gdy = 0; gdo = dd[0];
gux = gdo *
(t * (float) ((uint64_t) (xdimscale * yxaspect) * viewingrange)) * (1.f/(16384.0*65536.0*65536.0*5.0*1024.0));
guy = 0; //guo calculated later
gvx = 0; gvy = vv[1]; gvo = vv[0];
i = globalpicnum; r = (fy1-fy0)/(x1-x0); //slope of line
oy = fviewingrange/(ghalfx*256.f); oz = 1.f/oy;
y = ((((int32_t)((x0-ghalfx)*oy))+globalang)>>(11-dapskybits));
fx = x0;
do
{
globalpicnum = dapskyoff[y&((1<<dapskybits)-1)]+i;
guo = gdo*(t*((float)(globalang-(y<<(11-dapskybits)))) * (1.f/2048.f) + (float)((r_parallaxskypanning)?sec->floorxpanning:0)) - gux*ghalfx;
y++;
ox = fx; fx = ((float)((y<<(11-dapskybits))-globalang))*oz+ghalfx;
if (fx > x1) { fx = x1; i = -1; }
pow2xsplit = 0; domost(ox,(ox-x0)*r+fy0,fx,(fx-x0)*r+fy0); //flor
}
while (i >= 0);
// g_nodraw = 0;
}
else //NOTE: code copied from ceiling code... lots of duplicated stuff :/
{
//Skybox code for parallax ceiling!
float _xp0, _yp0, _xp1, _yp1, _oxp0, _oyp0, _t0, _t1; // _nx0, _ny0, _nx1, _ny1;
float _ryp0, _ryp1, _x0, _x1, _cy0, _fy0, _cy1, _fy1, _ox0, _ox1;
float nfy0, nfy1;
int32_t skywalx[4] = {-512,512,512,-512}, skywaly[4] = {-512,-512,512,512};
pow2xsplit = 0;
skyclamphack = 1;
for (i=0; i<4; i++)
{
x = skywalx[i&3]; y = skywaly[i&3];
_xp0 = (float)y*gcosang - (float)x*gsinang;
_yp0 = (float)x*gcosang2 + (float)y*gsinang2;
x = skywalx[(i+1)&3]; y = skywaly[(i+1)&3];
_xp1 = (float)y*gcosang - (float)x*gsinang;
_yp1 = (float)x*gcosang2 + (float)y*gsinang2;
_oxp0 = _xp0; _oyp0 = _yp0;
//Clip to close parallel-screen plane
if (_yp0 < SCISDIST)
{
if (_yp1 < SCISDIST) continue;
_t0 = (SCISDIST-_yp0)/(_yp1-_yp0); _xp0 = (_xp1-_xp0)*_t0+_xp0; _yp0 = SCISDIST;
// _nx0 = (skywalx[(i+1)&3]-skywalx[i&3])*_t0+skywalx[i&3];
// _ny0 = (skywaly[(i+1)&3]-skywaly[i&3])*_t0+skywaly[i&3];
}
else { _t0 = 0.f; /*_nx0 = skywalx[i&3]; _ny0 = skywaly[i&3];*/ }
if (_yp1 < SCISDIST)
{
_t1 = (SCISDIST-_oyp0)/(_yp1-_oyp0); _xp1 = (_xp1-_oxp0)*_t1+_oxp0; _yp1 = SCISDIST;
// _nx1 = (skywalx[(i+1)&3]-skywalx[i&3])*_t1+skywalx[i&3];
// _ny1 = (skywaly[(i+1)&3]-skywaly[i&3])*_t1+skywaly[i&3];
}
else { _t1 = 1.f; /*_nx1 = skywalx[(i+1)&3]; _ny1 = skywaly[(i+1)&3];*/ }
_ryp0 = 1.f/_yp0; _ryp1 = 1.f/_yp1;
//Generate screen coordinates for front side of wall
_x0 = ghalfx*_xp0*_ryp0 + ghalfx;
_x1 = ghalfx*_xp1*_ryp1 + ghalfx;
if (_x1 <= _x0) continue;
if ((_x0 >= x1) || (x0 >= _x1)) continue;
_ryp0 *= gyxscale; _ryp1 *= gyxscale;
_cy0 = -8192.f*_ryp0 + ghoriz;
_fy0 = 8192.f*_ryp0 + ghoriz;
_cy1 = -8192.f*_ryp1 + ghoriz;
_fy1 = 8192.f*_ryp1 + ghoriz;
_ox0 = _x0; _ox1 = _x1;
//Make sure: x0<=_x0<_x1<=_x1
nfy0 = fy0; nfy1 = fy1;
if (_x0 < x0)
{
t = (x0-_x0)/(_x1-_x0);
_cy0 += (_cy1-_cy0)*t;
_fy0 += (_fy1-_fy0)*t;
_x0 = x0;
}
else if (_x0 > x0) nfy0 += (_x0-x0)*(fy1-fy0)/(x1-x0);
if (_x1 > x1)
{
t = (x1-_x1)/(_x1-_x0);
_cy1 += (_cy1-_cy0)*t;
_fy1 += (_fy1-_fy0)*t;
_x1 = x1;
}
else if (_x1 < x1) nfy1 += (_x1-x1)*(fy1-fy0)/(x1-x0);
// (skybox floor)
//(_x0,_fy0)-(_x1,_fy1)
// (skybox wall)
//(_x0,_cy0)-(_x1,_cy1)
// (skybox ceiling)
//(_x0,nfy0)-(_x1,nfy1)
//ceiling of skybox
ft[0] = 512/16; ft[1] = 512/-16;
ft[2] = fcosglobalang*(1.f/2147483648.f);
ft[3] = fsinglobalang*(1.f/2147483648.f);
gdx = 0;
gdy = gxyaspect*(1.f/4194304.f);
gdo = -ghoriz*gdy;
gux = (double)ft[3]*fviewingrange*(-1.0/65536.0);
gvx = (double)ft[2]*fviewingrange*(-1.0/65536.0);
guy = ft[0]*gdy; gvy = ft[1]*gdy;
guo = ft[0]*gdo; gvo = ft[1]*gdo;
guo += (ft[2]-gux)*ghalfx;
gvo -= (ft[3]+gvx)*ghalfx;
gvx = -gvx; gvy = -gvy; gvo = -gvo; //y-flip skybox floor
#ifdef USE_OPENGL
drawingskybox = 6; //ceiling/5th texture/index 4 of skybox
#endif
if ((_fy0 > nfy0) && (_fy1 > nfy1)) domost(_x0,_fy0,_x1,_fy1);
else if ((_fy0 > nfy0) != (_fy1 > nfy1))
{
//(ox,oy) is intersection of: (_x0,_cy0)-(_x1,_cy1)
// (_x0,nfy0)-(_x1,nfy1)
//ox = _x0 + (_x1-_x0)*t
//oy = _cy0 + (_cy1-_cy0)*t
//oy = nfy0 + (nfy1-nfy0)*t
t = (_fy0-nfy0)/(nfy1-nfy0-_fy1+_fy0);
ox = _x0 + (_x1-_x0)*t;
oy = _fy0 + (_fy1-_fy0)*t;
if (nfy0 > _fy0) { domost(_x0,nfy0,ox,oy); domost(ox,oy,_x1,_fy1); }
else { domost(_x0,_fy0,ox,oy); domost(ox,oy,_x1,nfy1); }
}
else domost(_x0,nfy0,_x1,nfy1);
//wall of skybox
#ifdef USE_OPENGL
drawingskybox = i+1; //i+1th texture/index i of skybox
#endif
gdx = (_ryp0-_ryp1)*gxyaspect*(1.f/512.f) / (_ox0-_ox1);
gdy = 0;
gdo = _ryp0*gxyaspect*(1.f/512.f) - gdx*_ox0;
gux = (_t0*_ryp0 - _t1*_ryp1)*gxyaspect*(64.f/512.f) / (_ox0-_ox1);
guo = _t0*_ryp0*gxyaspect*(64.f/512.f) - gux*_ox0;
guy = 0;
_t0 = -8192.f*_ryp0 + ghoriz;
_t1 = -8192.f*_ryp1 + ghoriz;
t = ((gdx*_ox0 + gdo)*8.f) / ((_ox1-_ox0) * _ryp0 * 2048.f);
gvx = (_t0-_t1)*t;
gvy = (_ox1-_ox0)*t;
gvo = -gvx*_ox0 - gvy*_t0;
if ((_cy0 > nfy0) && (_cy1 > nfy1)) domost(_x0,_cy0,_x1,_cy1);
else if ((_cy0 > nfy0) != (_cy1 > nfy1))
{
//(ox,oy) is intersection of: (_x0,_fy0)-(_x1,_fy1)
// (_x0,nfy0)-(_x1,nfy1)
//ox = _x0 + (_x1-_x0)*t
//oy = _fy0 + (_fy1-_fy0)*t
//oy = nfy0 + (nfy1-nfy0)*t
t = (_cy0-nfy0)/(nfy1-nfy0-_cy1+_cy0);
ox = _x0 + (_x1-_x0)*t;
oy = _cy0 + (_cy1-_cy0)*t;
if (nfy0 > _cy0) { domost(_x0,nfy0,ox,oy); domost(ox,oy,_x1,_cy1); }
else { domost(_x0,_cy0,ox,oy); domost(ox,oy,_x1,nfy1); }
}
else domost(_x0,nfy0,_x1,nfy1);
}
//Floor of skybox
#ifdef USE_OPENGL
drawingskybox = 5; //floor/6th texture/index 5 of skybox
#endif
ft[0] = 512/16; ft[1] = -512/-16;
ft[2] = fcosglobalang*(1.f/2147483648.f);
ft[3] = fsinglobalang*(1.f/2147483648.f);
gdx = 0;
gdy = gxyaspect*(-1.f/4194304.f);
gdo = -ghoriz*gdy;
gux = ft[3]*((double)viewingrange)*(-1.0/65536.0);
gvx = ft[2]*((double)viewingrange)*(-1.0/65536.0);
guy = ft[0]*gdy; gvy = ft[1]*gdy;
guo = ft[0]*gdo; gvo = ft[1]*gdo;
guo += (ft[2]-gux)*ghalfx;
gvo -= (ft[3]+gvx)*ghalfx;
domost(x0,fy0,x1,fy1);
skyclamphack = 0;
#ifdef USE_OPENGL
drawingskybox = 0;
#endif
}
#ifdef USE_OPENGL
if (getrendermode() >= REND_POLYMOST)
{
skyclamphack = 0;
if (!nofog)
bglEnable(GL_FOG);
}
#endif
}
globalpicnum = sec->ceilingpicnum; globalshade = sec->ceilingshade; globalpal = (int32_t)((uint8_t)sec->ceilingpal);
globalorientation = sec->ceilingstat;
globvis = globalcisibility;
if (sector[sectnum].visibility != 0) globvis = mulscale4(globvis, (uint8_t)(sector[sectnum].visibility+16));
DO_TILE_ANIM(globalpicnum, sectnum);
dapskyoff = getpsky(globalpicnum, NULL, &dapskybits);
global_cf_fogpal = sec->fogpal;
global_cf_shade = sec->ceilingshade, global_cf_pal = sec->ceilingpal; global_cf_z = sec->ceilingz; // REFACT
global_cf_xpanning = sec->ceilingxpanning; global_cf_ypanning = sec->ceilingypanning, global_cf_heinum = sec->ceilingheinum;
global_getzofslope_func = &getceilzofslope;
if (!(globalorientation&1))
{
#ifdef YAX_ENABLE
if (globalposz >= sec->ceilingz || yax_getbunch(sectnum, YAX_CEILING) < 0 || yax_getnextwall(wallnum, YAX_CEILING) >= 0)
#endif
polymost_internal_nonparallaxed(nx0, ny0, nx1, ny1, ryp0, ryp1, x0, x1, cy0, cy1, 0, sectnum);
}
else if ((nextsectnum < 0) || (!(sector[nextsectnum].ceilingstat&1)))
{
#ifdef USE_OPENGL
if (getrendermode() >= REND_POLYMOST)
{
calc_and_apply_fog_factor(sec->ceilingpicnum, sec->ceilingshade, sec->visibility, sec->ceilingpal, 0.005f);
//Use clamping for tiled sky textures
for (i=(1<<dapskybits)-1; i>0; i--)
if (dapskyoff[i] != dapskyoff[i-1])
{ skyclamphack = r_parallaxskyclamping; break; }
}
#endif
//Parallaxing sky...
if (bpp == 8 || !usehightile || !hicfindskybox(globalpicnum, globalpal))
{
// g_nodraw = 1;
//Render for parallaxtype == 0 / paper-sky
dd[0] = fxdimen*.0000001f; //Adjust sky depth based on screen size!
t = (float)((1<<(picsiz[globalpicnum]&15))<<dapskybits);
vv[1] = dd[0]*((float)xdimscale*viewingrange) * (1.f/(65536.f*65536.f));
vv[0] = dd[0]*((float)((tilesiz[globalpicnum].y>>1)/*+g_psky.yoffs*/)) - vv[1]*ghoriz;
i = (1<<(picsiz[globalpicnum]>>4)); if (i != tilesiz[globalpicnum].y) i += i;
//Hack to draw black rectangle below sky when looking down...
gdx = 0; gdy = gxyaspect * (1.f/-262144.f); gdo = -ghoriz*gdy;
gux = 0; guy = 0; guo = 0;
gvx = 0; gvy = 0; gvo = 0;
oy = -vv[0]/vv[1];
if ((oy < cy0) && (oy < cy1)) domost(x1,oy,x0,oy);
else if ((oy < cy0) != (oy < cy1))
{
/* cy1 cy0
// / \
//oy---------- oy---------
// / \
// cy0 cy1
*/
ox = (oy-cy0)*(x1-x0)/(cy1-cy0) + x0;
if (oy < cy0) { domost(ox,oy,x0,oy); domost(x1,cy1,ox,oy); }
else { domost(ox,oy,x0,cy0); domost(x1,oy,ox,oy); }
}
else domost(x1,cy1,x0,cy0);
if (r_parallaxskypanning)
vv[0] += dd[0]*(float)sec->ceilingypanning*(float)i*(1.f/256.f);
gdx = 0; gdy = 0; gdo = dd[0];
gux = gdo *
(t * (float) ((uint64_t)(xdimscale * yxaspect) * viewingrange)) * (1.f/(16384.0*65536.0*65536.0*5.0*1024.0));
guy = 0; //guo calculated later
gvx = 0; gvy = vv[1]; gvo = vv[0];
i = globalpicnum; r = (cy1-cy0)/(x1-x0); //slope of line
oy = fviewingrange/(ghalfx*256.f); oz = 1.f/oy;
y = ((((int32_t)((x0-ghalfx)*oy))+globalang)>>(11-dapskybits));
fx = x0;
do
{
globalpicnum = dapskyoff[y&((1<<dapskybits)-1)]+i;
guo = gdo*(t*((float)(globalang-(y<<(11-dapskybits)))) * 1.f/2048.f + (float)((r_parallaxskypanning)?sec->ceilingxpanning:0)) - gux*ghalfx;
y++;
ox = fx; fx = ((float)((y<<(11-dapskybits))-globalang))*oz+ghalfx;
if (fx > x1) { fx = x1; i = -1; }
pow2xsplit = 0; domost(fx,(fx-x0)*r+cy0,ox,(ox-x0)*r+cy0); //ceil
}
while (i >= 0);
// g_nodraw = 0;
}
else
{
//Skybox code for parallax ceiling!
float _xp0, _yp0, _xp1, _yp1, _oxp0, _oyp0, _t0, _t1; // _nx0, _ny0, _nx1, _ny1;
float _ryp0, _ryp1, _x0, _x1, _cy0, _fy0, _cy1, _fy1, _ox0, _ox1;
float ncy0, ncy1;
int32_t skywalx[4] = {-512,512,512,-512}, skywaly[4] = {-512,-512,512,512};
pow2xsplit = 0;
skyclamphack = 1;
for (i=0; i<4; i++)
{
x = skywalx[i&3]; y = skywaly[i&3];
_xp0 = (float)y*gcosang - (float)x*gsinang;
_yp0 = (float)x*gcosang2 + (float)y*gsinang2;
x = skywalx[(i+1)&3]; y = skywaly[(i+1)&3];
_xp1 = (float)y*gcosang - (float)x*gsinang;
_yp1 = (float)x*gcosang2 + (float)y*gsinang2;
_oxp0 = _xp0; _oyp0 = _yp0;
//Clip to close parallel-screen plane
if (_yp0 < SCISDIST)
{
if (_yp1 < SCISDIST) continue;
_t0 = (SCISDIST-_yp0)/(_yp1-_yp0); _xp0 = (_xp1-_xp0)*_t0+_xp0; _yp0 = SCISDIST;
// _nx0 = (skywalx[(i+1)&3]-skywalx[i&3])*_t0+skywalx[i&3];
// _ny0 = (skywaly[(i+1)&3]-skywaly[i&3])*_t0+skywaly[i&3];
}
else { _t0 = 0.f; /*_nx0 = skywalx[i&3]; _ny0 = skywaly[i&3];*/ }
if (_yp1 < SCISDIST)
{
_t1 = (SCISDIST-_oyp0)/(_yp1-_oyp0); _xp1 = (_xp1-_oxp0)*_t1+_oxp0; _yp1 = SCISDIST;
// _nx1 = (skywalx[(i+1)&3]-skywalx[i&3])*_t1+skywalx[i&3];
// _ny1 = (skywaly[(i+1)&3]-skywaly[i&3])*_t1+skywaly[i&3];
}
else { _t1 = 1.f; /*_nx1 = skywalx[(i+1)&3]; _ny1 = skywaly[(i+1)&3];*/ }
_ryp0 = 1.f/_yp0; _ryp1 = 1.f/_yp1;
//Generate screen coordinates for front side of wall
_x0 = ghalfx*_xp0*_ryp0 + ghalfx;
_x1 = ghalfx*_xp1*_ryp1 + ghalfx;
if (_x1 <= _x0) continue;
if ((_x0 >= x1) || (x0 >= _x1)) continue;
_ryp0 *= gyxscale; _ryp1 *= gyxscale;
_cy0 = -8192.f*_ryp0 + ghoriz;
_fy0 = 8192.f*_ryp0 + ghoriz;
_cy1 = -8192.f*_ryp1 + ghoriz;
_fy1 = 8192.f*_ryp1 + ghoriz;
_ox0 = _x0; _ox1 = _x1;
//Make sure: x0<=_x0<_x1<=_x1
ncy0 = cy0; ncy1 = cy1;
if (_x0 < x0)
{
t = (x0-_x0)/(_x1-_x0);
_cy0 += (_cy1-_cy0)*t;
_fy0 += (_fy1-_fy0)*t;
_x0 = x0;
}
else if (_x0 > x0) ncy0 += (_x0-x0)*(cy1-cy0)/(x1-x0);
if (_x1 > x1)
{
t = (x1-_x1)/(_x1-_x0);
_cy1 += (_cy1-_cy0)*t;
_fy1 += (_fy1-_fy0)*t;
_x1 = x1;
}
else if (_x1 < x1) ncy1 += (_x1-x1)*(cy1-cy0)/(x1-x0);
// (skybox ceiling)
//(_x0,_cy0)-(_x1,_cy1)
// (skybox wall)
//(_x0,_fy0)-(_x1,_fy1)
// (skybox floor)
//(_x0,ncy0)-(_x1,ncy1)
//ceiling of skybox
#ifdef USE_OPENGL
drawingskybox = 5; //ceiling/5th texture/index 4 of skybox
#endif
ft[0] = 512/16; ft[1] = -512/-16;
ft[2] = fcosglobalang*(1.f/2147483648.f);
ft[3] = fsinglobalang*(1.f/2147483648.f);
gdx = 0;
gdy = gxyaspect*(-1.f/4194304.f);
gdo = -ghoriz*gdy;
gux = ft[3]*fviewingrange*(-1.0/65536.0);
gvx = ft[2]*fviewingrange*(-1.0/65536.0);
guy = ft[0]*gdy; gvy = ft[1]*gdy;
guo = ft[0]*gdo; gvo = ft[1]*gdo;
guo += (ft[2]-gux)*ghalfx;
gvo -= (ft[3]+gvx)*ghalfx;
if ((_cy0 < ncy0) && (_cy1 < ncy1)) domost(_x1,_cy1,_x0,_cy0);
else if ((_cy0 < ncy0) != (_cy1 < ncy1))
{
//(ox,oy) is intersection of: (_x0,_cy0)-(_x1,_cy1)
// (_x0,ncy0)-(_x1,ncy1)
//ox = _x0 + (_x1-_x0)*t
//oy = _cy0 + (_cy1-_cy0)*t
//oy = ncy0 + (ncy1-ncy0)*t
t = (_cy0-ncy0)/(ncy1-ncy0-_cy1+_cy0);
ox = _x0 + (_x1-_x0)*t;
oy = _cy0 + (_cy1-_cy0)*t;
if (ncy0 < _cy0) { domost(ox,oy,_x0,ncy0); domost(_x1,_cy1,ox,oy); }
else { domost(ox,oy,_x0,_cy0); domost(_x1,ncy1,ox,oy); }
}
else domost(_x1,ncy1,_x0,ncy0);
//wall of skybox
#ifdef USE_OPENGL
drawingskybox = i+1; //i+1th texture/index i of skybox
#endif
gdx = (_ryp0-_ryp1)*gxyaspect*(1.f/512.f) / (_ox0-_ox1);
gdy = 0;
gdo = _ryp0*gxyaspect*(1.f/512.f) - gdx*_ox0;
gux = (_t0*_ryp0 - _t1*_ryp1)*gxyaspect*(64.f/512.f) / (_ox0-_ox1);
guo = _t0*_ryp0*gxyaspect*(64.f/512.f) - gux*_ox0;
guy = 0;
_t0 = -8192.f*_ryp0 + ghoriz;
_t1 = -8192.f*_ryp1 + ghoriz;
t = ((gdx*_ox0 + gdo)*8.f) / ((_ox1-_ox0) * _ryp0 * 2048.f);
gvx = (_t0-_t1)*t;
gvy = (_ox1-_ox0)*t;
gvo = -gvx*_ox0 - gvy*_t0;
if ((_fy0 < ncy0) && (_fy1 < ncy1)) domost(_x1,_fy1,_x0,_fy0);
else if ((_fy0 < ncy0) != (_fy1 < ncy1))
{
//(ox,oy) is intersection of: (_x0,_fy0)-(_x1,_fy1)
// (_x0,ncy0)-(_x1,ncy1)
//ox = _x0 + (_x1-_x0)*t
//oy = _fy0 + (_fy1-_fy0)*t
//oy = ncy0 + (ncy1-ncy0)*t
t = (_fy0-ncy0)/(ncy1-ncy0-_fy1+_fy0);
ox = _x0 + (_x1-_x0)*t;
oy = _fy0 + (_fy1-_fy0)*t;
if (ncy0 < _fy0) { domost(ox,oy,_x0,ncy0); domost(_x1,_fy1,ox,oy); }
else { domost(ox,oy,_x0,_fy0); domost(_x1,ncy1,ox,oy); }
}
else domost(_x1,ncy1,_x0,ncy0);
}
//Floor of skybox
#ifdef USE_OPENGL
drawingskybox = 6; //floor/6th texture/index 5 of skybox
#endif
ft[0] = 512/16; ft[1] = 512/-16;
ft[2] = fcosglobalang*(1.f/2147483648.f);
ft[3] = fsinglobalang*(1.f/2147483648.f);
gdx = 0;
gdy = gxyaspect*(1.f/4194304.f);
gdo = -ghoriz*gdy;
gux = ft[3]*fviewingrange*(-1.0/65536.0);
gvx = ft[2]*fviewingrange*(-1.0/65536.0);
guy = ft[0]*gdy; gvy = ft[1]*gdy;
guo = ft[0]*gdo; gvo = ft[1]*gdo;
guo += (ft[2]-gux)*ghalfx;
gvo -= (ft[3]+gvx)*ghalfx;
gvx = -gvx; gvy = -gvy; gvo = -gvo; //y-flip skybox floor
domost(x1,cy1,x0,cy0);
skyclamphack = 0;
#ifdef USE_OPENGL
drawingskybox = 0;
#endif
}
#ifdef USE_OPENGL
if (getrendermode() >= REND_POLYMOST)
{
skyclamphack = 0;
if (!nofog)
bglEnable(GL_FOG);
}
#endif
}
//(x0,cy0) == (u= 0,v=0,d=)
//(x1,cy0) == (u=wal->xrepeat*8,v=0)
//(x0,fy0) == (u= 0,v=v)
// u = (gux*sx + guy*sy + guo) / (gdx*sx + gdy*sy + gdo)
// v = (gvx*sx + gvy*sy + gvo) / (gdx*sx + gdy*sy + gdo)
// 0 = (gux*x0 + guy*cy0 + guo) / (gdx*x0 + gdy*cy0 + gdo)
//wal->xrepeat*8 = (gux*x1 + guy*cy0 + guo) / (gdx*x1 + gdy*cy0 + gdo)
// 0 = (gvx*x0 + gvy*cy0 + gvo) / (gdx*x0 + gdy*cy0 + gdo)
// v = (gvx*x0 + gvy*fy0 + gvo) / (gdx*x0 + gdy*fy0 + gdo)
//sx = x0, u = t0*wal->xrepeat*8, d = yp0;
//sx = x1, u = t1*wal->xrepeat*8, d = yp1;
//d = gdx*sx + gdo
//u = (gux*sx + guo) / (gdx*sx + gdo)
//yp0 = gdx*x0 + gdo
//yp1 = gdx*x1 + gdo
//t0*wal->xrepeat*8 = (gux*x0 + guo) / (gdx*x0 + gdo)
//t1*wal->xrepeat*8 = (gux*x1 + guo) / (gdx*x1 + gdo)
//gdx*x0 + gdo = yp0
//gdx*x1 + gdo = yp1
gdx = (ryp0-ryp1)*gxyaspect / (x0-x1);
gdy = 0;
gdo = ryp0*gxyaspect - gdx*x0;
//gux*x0 + guo = t0*wal->xrepeat*8*yp0
//gux*x1 + guo = t1*wal->xrepeat*8*yp1
gux = (t0*ryp0 - t1*ryp1)*gxyaspect*(float)wal->xrepeat*8.f / (x0-x1);
guo = t0*ryp0*gxyaspect*(float)wal->xrepeat*8.f - gux*x0;
guo += (float)wal->xpanning*gdo;
gux += (float)wal->xpanning*gdx;
guy = 0;
//Derivation for u:
// (gvx*x0 + gvy*cy0 + gvo) / (gdx*x0 + gdy*cy0 + gdo) = 0
// (gvx*x1 + gvy*cy1 + gvo) / (gdx*x1 + gdy*cy1 + gdo) = 0
// (gvx*x0 + gvy*fy0 + gvo) / (gdx*x0 + gdy*fy0 + gdo) = v
// (gvx*x1 + gvy*fy1 + gvo) / (gdx*x1 + gdy*fy1 + gdo) = v
// (gvx*x0 + gvy*cy0 + gvo*1) = 0
// (gvx*x1 + gvy*cy1 + gvo*1) = 0
// (gvx*x0 + gvy*fy0 + gvo*1) = t
ogux = gux; oguy = guy; oguo = guo;
Bassert(domostpolymethod == 0);
domostpolymethod = DAMETH_WALL;
if (nextsectnum >= 0)
{
getzsofslope(nextsectnum,Blrintf(nx0),Blrintf(ny0),&cz,&fz);
ocy0 = ((float)(cz-globalposz))*ryp0 + ghoriz;
ofy0 = ((float)(fz-globalposz))*ryp0 + ghoriz;
getzsofslope(nextsectnum,Blrintf(nx1),Blrintf(ny1),&cz,&fz);
ocy1 = ((float)(cz-globalposz))*ryp1 + ghoriz;
ofy1 = ((float)(fz-globalposz))*ryp1 + ghoriz;
if ((wal->cstat&48) == 16) maskwall[maskwallcnt++] = z;
if (((cy0 < ocy0) || (cy1 < ocy1)) && (!((sec->ceilingstat&sector[nextsectnum].ceilingstat)&1)))
{
globalpicnum = wal->picnum; globalshade = wal->shade; globalpal = (int32_t)((uint8_t)wal->pal);
globvis = globalvisibility;
if (sector[sectnum].visibility != 0) globvis = mulscale4(globvis, (uint8_t)(sector[sectnum].visibility+16));
DO_TILE_ANIM(globalpicnum, wallnum+16384);
if (!(wal->cstat&4)) i = sector[nextsectnum].ceilingz; else i = sec->ceilingz;
// over
calc_ypanning(i, ryp0, ryp1, x0, x1, wal->ypanning, wal->yrepeat, wal->cstat&4);
if (wal->cstat&8) //xflip
{
t = (float)(wal->xrepeat*8 + wal->xpanning*2);
gux = gdx*t - gux;
guy = gdy*t - guy;
guo = gdo*t - guo;
}
if (wal->cstat&256) { gvx = -gvx; gvy = -gvy; gvo = -gvo; } //yflip
calc_and_apply_fog(wal->picnum, fogpal_shade(sec, wal->shade), sec->visibility, get_floor_fogpal(sec));
pow2xsplit = 1; domost(x1,ocy1,x0,ocy0);
if (wal->cstat&8) { gux = ogux; guy = oguy; guo = oguo; }
}
if (((ofy0 < fy0) || (ofy1 < fy1)) && (!((sec->floorstat&sector[nextsectnum].floorstat)&1)))
{
if (!(wal->cstat&2)) nwal = wal;
else
{
nwal = &wall[wal->nextwall];
guo += (float)(nwal->xpanning-wal->xpanning)*gdo;
gux += (float)(nwal->xpanning-wal->xpanning)*gdx;
guy += (float)(nwal->xpanning-wal->xpanning)*gdy;
}
globalpicnum = nwal->picnum; globalshade = nwal->shade; globalpal = (int32_t)((uint8_t)nwal->pal);
globvis = globalvisibility;
if (sector[sectnum].visibility != 0) globvis = mulscale4(globvis, (uint8_t)(sector[sectnum].visibility+16));
DO_TILE_ANIM(globalpicnum, wallnum+16384);
if (!(nwal->cstat&4)) i = sector[nextsectnum].floorz; else i = sec->ceilingz;
// under
calc_ypanning(i, ryp0, ryp1, x0, x1, nwal->ypanning, wal->yrepeat, !(nwal->cstat&4));
if (wal->cstat&8) //xflip
{
t = (float)(wal->xrepeat*8 + nwal->xpanning*2);
gux = gdx*t - gux;
guy = gdy*t - guy;
guo = gdo*t - guo;
}
if (nwal->cstat&256) { gvx = -gvx; gvy = -gvy; gvo = -gvo; } //yflip
calc_and_apply_fog(nwal->picnum, fogpal_shade(sec, nwal->shade), sec->visibility, get_floor_fogpal(sec));
pow2xsplit = 1; domost(x0,ofy0,x1,ofy1);
if (wal->cstat&(2+8)) { guo = oguo; gux = ogux; guy = oguy; }
}
}
if ((nextsectnum < 0) || (wal->cstat&32)) //White/1-way wall
{
const int32_t maskingOneWay = (nextsectnum >= 0 && (wal->cstat&32));
if (nextsectnum < 0) globalpicnum = wal->picnum; else globalpicnum = wal->overpicnum;
globalshade = wal->shade; globalpal = (int32_t)((uint8_t)wal->pal);
globvis = globalvisibility;
if (sector[sectnum].visibility != 0) globvis = mulscale4(globvis, (uint8_t)(sector[sectnum].visibility+16));
DO_TILE_ANIM(globalpicnum, wallnum+16384);
if (nextsectnum >= 0) { if (!(wal->cstat&4)) i = nextsec->ceilingz; else i = sec->ceilingz; }
else { if (!(wal->cstat&4)) i = sec->ceilingz; else i = sec->floorz; }
// white / 1-way
calc_ypanning(i, ryp0, ryp1, x0, x1, wal->ypanning, wal->yrepeat, !maskingOneWay && !(wal->cstat&4));
if (wal->cstat&8) //xflip
{
t = (float)(wal->xrepeat*8 + wal->xpanning*2);
gux = gdx*t - gux;
guy = gdy*t - guy;
guo = gdo*t - guo;
}
if (wal->cstat&256) { gvx = -gvx; gvy = -gvy; gvo = -gvo; } //yflip
calc_and_apply_fog(wal->picnum, fogpal_shade(sec, wal->shade), sec->visibility, get_floor_fogpal(sec));
pow2xsplit = 1; domost(x0,-10000,x1,-10000);
}
domostpolymethod = 0;
if (nextsectnum >= 0)
if ((!(gotsector[nextsectnum>>3]&pow2char[nextsectnum&7])) && (testvisiblemost(x0,x1)))
polymost_scansector(nextsectnum);
}
}
static int32_t polymost_bunchfront(const int32_t b1, const int32_t b2)
{
const int32_t b1f = bunchfirst[b1];
const float x2b2 = dxb2[bunchlast[b2]];
const float x1b1 = dxb1[b1f];
if (x1b1 >= x2b2)
return -1;
{
const int32_t b2f = bunchfirst[b2];
int32_t i;
const float x1b2 = dxb1[b2f];
if (x1b2 >= dxb2[bunchlast[b1]])
return -1;
if (x1b1 >= x1b2)
{
for (i=b2f; dxb2[i]<=x1b1; i=bunchp2[i]);
return wallfront(b1f, i);
}
for (i=b1f; dxb2[i]<=x1b2; i=bunchp2[i]);
return wallfront(i, b2f);
}
}
void polymost_scansector(int32_t sectnum)
{
walltype *wal, *wal2;
spritetype *spr;
int32_t z, zz, startwall, endwall, numscansbefore, scanfirst, bunchfrst, nextsectnum, sectorbordercnt;
vec2f_t p1, p2, fp1, fp2;
float d;
if (sectnum < 0) return;
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))
{
vec2_t s = { spr->x-globalposx, spr->y-globalposy };
if ((spr->cstat&48) || (usemodels && tile2model[spr->picnum].modelid>=0) || ((s.x * gcosang) + (s.y * gsinang) > 0))
{
if ((spr->cstat&(64+48))!=(64+16) || dmulscale6(sintable[(spr->ang+512)&2047],-s.x, sintable[spr->ang&2047],-s.y) > 0)
if (engine_addtsprite(z, sectnum))
break;
}
}
}
gotsector[sectnum>>3] |= pow2char[sectnum&7];
bunchfrst = numbunches;
numscansbefore = numscans;
startwall = sector[sectnum].wallptr; endwall = sector[sectnum].wallnum+startwall;
scanfirst = numscans;
p2.x = p2.y = 0;
for (z=startwall,wal=&wall[z]; z<endwall; z++,wal++)
{
wal2 = &wall[wal->point2];
fp1.x = (float)(wal->x-globalposx); fp1.y = (float)(wal->y-globalposy);
fp2.x = (float)(wal2->x-globalposx); fp2.y = (float)(wal2->y-globalposy);
nextsectnum = wal->nextsector; //Scan close sectors
#ifdef YAX_ENABLE
if (yax_nomaskpass==0 || !yax_isislandwall(z, !yax_globalcf) || (yax_nomaskdidit=1, 0))
#endif
if ((nextsectnum >= 0) && (!(wal->cstat&32)) && (!(gotsector[nextsectnum>>3]&pow2char[nextsectnum&7])))
{
d = fp1.x*fp2.y - fp2.x*fp1.y;
p1.x = fp2.x-fp1.x;
p1.y = fp2.y-fp1.y;
if (d*d <= (p1.x*p1.x + p1.y*p1.y) * (SCISDIST*SCISDIST*260.f))
sectorborder[sectorbordercnt++] = nextsectnum;
}
if ((z == startwall) || (wall[z-1].point2 != z))
{
p1.x = ((fp1.y * fcosglobalang) - (fp1.x * fsinglobalang)) * (1.0f/64.f);
p1.y = ((fp1.x * (float)cosviewingrangeglobalang) + (fp1.y * (float)sinviewingrangeglobalang)) * (1.0f/64.f);
}
else { p1 = p2; }
p2.x = ((fp2.y * fcosglobalang) - (fp2.x * fsinglobalang)) * (1.0f/64.f);
p2.y = ((fp2.x * (float) cosviewingrangeglobalang) + (fp2.y * (float) sinviewingrangeglobalang)) * (1.0f/64.f);
if ((p1.y >= SCISDIST) || (p2.y >= SCISDIST))
if (p1.x*p2.y < p2.x*p1.y) //if wall is facing you...
{
if (p1.y >= SCISDIST)
dxb1[numscans] = p1.x*ghalfx/p1.y + ghalfx;
else dxb1[numscans] = -1e32f;
if (p2.y >= SCISDIST)
dxb2[numscans] = p2.x*ghalfx/p2.y + ghalfx;
else dxb2[numscans] = 1e32f;
if (dxb1[numscans] < dxb2[numscans])
{ thesector[numscans] = sectnum; thewall[numscans] = z; bunchp2[numscans] = numscans+1; numscans++; }
}
if ((wall[z].point2 < z) && (scanfirst < numscans))
{ bunchp2[numscans-1] = scanfirst; scanfirst = numscans; }
}
for (z=numscansbefore; z<numscans; z++)
if ((wall[thewall[z]].point2 != thewall[bunchp2[z]]) || (dxb2[z] > dxb1[bunchp2[z]]))
{
bunchfirst[numbunches++] = bunchp2[z]; bunchp2[z] = -1;
#ifdef YAX_ENABLE
if (scansector_retfast)
return;
#endif
}
for (z=bunchfrst; z<numbunches; z++)
{
for (zz=bunchfirst[z]; bunchp2[zz]>=0; zz=bunchp2[zz]);
bunchlast[z] = zz;
}
}
while (sectorbordercnt > 0);
}
/*Init viewport boundary (must be 4 point convex loop):
// (px[0],py[0]).----.(px[1],py[1])
// / \
// / \
// (px[3],py[3]).--------------.(px[2],py[2])
*/
void initmosts(const float * px, const float * py, int32_t n)
{
int32_t i, j, k, imin, vcnt;
vcnt = 1; //0 is dummy solid node
if (n < 3) return;
imin = (px[1] < px[0]);
for (i=n-1; i>=2; i--) if (px[i] < px[imin]) imin = i;
vsp[vcnt].x = px[imin];
vsp[vcnt].cy[0] = vsp[vcnt].fy[0] = py[imin];
vcnt++;
i = imin+1; if (i >= n) i = 0;
j = imin-1; if (j < 0) j = n-1;
do
{
if (px[i] < px[j])
{
if ((vcnt > 1) && (px[i] <= vsp[vcnt-1].x)) vcnt--;
vsp[vcnt].x = px[i];
vsp[vcnt].cy[0] = py[i];
k = j+1; if (k >= n) k = 0;
//(px[k],py[k])
//(px[i],?)
//(px[j],py[j])
vsp[vcnt].fy[0] = (px[i]-px[k])*(py[j]-py[k])/(px[j]-px[k]) + py[k];
vcnt++;
i++; if (i >= n) i = 0;
}
else if (px[j] < px[i])
{
if ((vcnt > 1) && (px[j] <= vsp[vcnt-1].x)) vcnt--;
vsp[vcnt].x = px[j];
vsp[vcnt].fy[0] = py[j];
k = i-1; if (k < 0) k = n-1;
//(px[k],py[k])
//(px[j],?)
//(px[i],py[i])
vsp[vcnt].cy[0] = (px[j]-px[k])*(py[i]-py[k])/(px[i]-px[k]) + py[k];
vcnt++;
j--; if (j < 0) j = n-1;
}
else
{
if ((vcnt > 1) && (px[i] <= vsp[vcnt-1].x)) vcnt--;
vsp[vcnt].x = px[i];
vsp[vcnt].cy[0] = py[i];
vsp[vcnt].fy[0] = py[j];
vcnt++;
i++; if (i >= n) i = 0; if (i == j) break;
j--; if (j < 0) j = n-1;
}
} while (i != j);
if (px[i] > vsp[vcnt-1].x)
{
vsp[vcnt].x = px[i];
vsp[vcnt].cy[0] = vsp[vcnt].fy[0] = py[i];
vcnt++;
}
vsp_finalize_init(vsp, vcnt);
gtag = vcnt;
}
void polymost_drawrooms()
{
int32_t i, j, n, n2, closest;
float ox, oy, oz, ox2, oy2, oz2, r, px[6], py[6], pz[6], px2[6], py2[6], pz2[6], sx[6], sy[6];
if (getrendermode() == REND_CLASSIC) return;
begindrawing();
frameoffset = frameplace + windowy1*bytesperline + windowx1;
#ifdef USE_OPENGL
if (getrendermode() >= REND_POLYMOST)
{
resizeglcheck();
#ifdef YAX_ENABLE
if (numyaxbunches==0)
#endif
if (editstatus)
bglClear(GL_COLOR_BUFFER_BIT);
bglClear(GL_DEPTH_BUFFER_BIT);
bglDisable(GL_BLEND);
bglEnable(GL_TEXTURE_2D);
bglEnable(GL_DEPTH_TEST);
bglDepthFunc(GL_LESS); //NEVER,LESS,(,L)EQUAL,GREATER,(NOT,G)EQUAL,ALWAYS
bglDepthRange(0.0, 1.0); //<- this is more widely supported than glPolygonOffset
//Enable this for OpenGL red-blue glasses mode :)
#ifdef REDBLUEMODE
if (glredbluemode)
{
static int32_t grbfcnt = 0; grbfcnt++;
if (redblueclearcnt < numpages) { redblueclearcnt++; bglColorMask(1,1,1,1); bglClear(GL_COLOR_BUFFER_BIT); }
if (grbfcnt&1)
{
bglViewport(windowx1-16,yres-(windowy2+1),windowx2-(windowx1-16)+1,windowy2-windowy1+1);
bglColorMask(1,0,0,1);
globalposx += singlobalang>>10;
globalposy -= cosglobalang>>10;
}
else
{
bglViewport(windowx1,yres-(windowy2+1),windowx2+16-windowx1+1,windowy2-windowy1+1);
bglColorMask(0,1,1,1);
globalposx -= singlobalang>>10;
globalposy += cosglobalang>>10;
}
}
#endif
}
#endif
//Polymost supports true look up/down :) Here, we convert horizon to angle.
//gchang&gshang are cos&sin of this angle (respectively)
fviewingrange = (float) viewingrange;
gyxscale = ((float)xdimenscale)*(1.0f/131072.f);
gxyaspect = ((float)xyaspect*fviewingrange)*(5.f/(65536.f*262144.f));
gviewxrange = fviewingrange * fxdimen * (1.f/(32768.f*1024.f));
fcosglobalang = (float) cosglobalang;
gcosang = fcosglobalang*(1.0f/262144.f);
fsinglobalang = (float) singlobalang;
gsinang = fsinglobalang*(1.0f/262144.f);
gcosang2 = gcosang * (fviewingrange * (1.0f/65536.f));
gsinang2 = gsinang * (fviewingrange * (1.0f/65536.f));
ghalfx = fxdimen * .5f;
grhalfxdown10 = 1.f/(ghalfx*1024.f);
ghoriz = (float)globalhoriz;
gvisibility = ((float)globalvisibility)*FOGSCALE;
//global cos/sin height angle
r = fydimen * .5f - ghoriz;
gshang = r/Bsqrtf(r*r+ghalfx*ghalfx);
gchang = Bsqrtf(1.f-gshang*gshang);
ghoriz = fydimen * .5f;
//global cos/sin tilt angle
gctang = cos(gtang);
gstang = sin(gtang);
if (Bfabsf(gstang) < .001f) //This hack avoids nasty precision bugs in domost()
{ gstang = 0.f; if (gctang > 0.f) gctang = 1.f; else gctang = -1.f; }
if (inpreparemirror)
gstang = -gstang;
//Generate viewport trapezoid (for handling screen up/down)
px[0] = px[3] = 0-1; px[1] = px[2] = (float)(windowx2+1-windowx1+2);
py[0] = py[1] = 0-1; py[2] = py[3] = (float)(windowy2+1-windowy1+2);
n = 4;
for (i=0; i<n; i++)
{
ox = px[i]-ghalfx; oy = py[i]-ghoriz; oz = ghalfx;
//Tilt rotation (backwards)
ox2 = ox*gctang + oy*gstang;
oy2 = oy*gctang - ox*gstang;
oz2 = oz;
//Up/down rotation (backwards)
px[i] = ox2;
py[i] = oy2*gchang + oz2*gshang;
pz[i] = oz2*gchang - oy2*gshang;
}
//Clip to SCISDIST plane
n2 = 0;
for (i=0; i<n; i++)
{
j = i+1; if (j >= n) j = 0;
if (pz[i] >= SCISDIST) { px2[n2] = px[i]; py2[n2] = py[i]; pz2[n2] = pz[i]; n2++; }
if ((pz[i] >= SCISDIST) != (pz[j] >= SCISDIST))
{
r = (SCISDIST-pz[i])/(pz[j]-pz[i]);
px2[n2] = (px[j]-px[i])*r + px[i];
py2[n2] = (py[j]-py[i])*r + py[i];
pz2[n2] = SCISDIST; n2++;
}
}
if (n2 < 3) { enddrawing(); return; }
for (i=0; i<n2; i++)
{
r = ghalfx / pz2[i];
sx[i] = px2[i]*r + ghalfx;
sy[i] = py2[i]*r + ghoriz;
}
initmosts(sx,sy,n2);
if (searchit == 2)
polymost_editorfunc();
numscans = numbunches = 0;
// MASKWALL_BAD_ACCESS
// Fixes access of stale maskwall[maskwallcnt] (a "scan" index, in BUILD lingo):
maskwallcnt = 0;
if (globalcursectnum >= MAXSECTORS)
globalcursectnum -= MAXSECTORS;
else
{
i = globalcursectnum;
updatesector(globalposx,globalposy,&globalcursectnum);
if (globalcursectnum < 0) globalcursectnum = i;
}
polymost_scansector(globalcursectnum);
if (inpreparemirror)
{
grhalfxdown10x = -grhalfxdown10;
inpreparemirror = 0;
// see engine.c: INPREPAREMIRROR_NO_BUNCHES
if (numbunches > 0)
{
polymost_drawalls(0);
numbunches--;
bunchfirst[0] = bunchfirst[numbunches];
bunchlast[0] = bunchlast[numbunches];
}
}
else
grhalfxdown10x = grhalfxdown10;
while (numbunches > 0)
{
Bmemset(ptempbuf,0,numbunches+3); ptempbuf[0] = 1;
closest = 0; //Almost works, but not quite :(
for (i=1; i<numbunches; i++)
{
j = polymost_bunchfront(i,closest); if (j < 0) continue;
ptempbuf[i] = 1;
if (!j) { ptempbuf[closest] = 1; closest = i; }
}
for (i=0; i<numbunches; i++) //Double-check
{
if (ptempbuf[i]) continue;
j = polymost_bunchfront(i,closest); if (j < 0) continue;
ptempbuf[i] = 1;
if (!j) { ptempbuf[closest] = 1; closest = i; i = 0; }
}
polymost_drawalls(closest);
numbunches--;
bunchfirst[closest] = bunchfirst[numbunches];
bunchlast[closest] = bunchlast[numbunches];
}
#ifdef USE_OPENGL
if (getrendermode() >= REND_POLYMOST)
{
bglDepthFunc(GL_LESS); //NEVER,LESS,(,L)EQUAL,GREATER,(NOT,G)EQUAL,ALWAYS
bglDepthRange(0.0, 1.0); //<- this is more widely supported than glPolygonOffset
}
#endif
enddrawing();
}
void polymost_drawmaskwall(int32_t damaskwallcnt)
{
vec2f_t dpxy[8];
float dpx2[8], dpy2[8];
float x0, x1, sx0, sy0, sx1, sy1, xp0, yp0, xp1, yp1, oxp0, oyp0, ryp0, ryp1;
float r, t, t0, t1, csy[4], fsy[4];
int32_t i, j, n, n2, z, sectnum, z1, z2, cz[4], fz[4], method;
int32_t m0, m1;
sectortype *sec, *nsec;
walltype *wal, *wal2;
z = maskwall[damaskwallcnt];
wal = &wall[thewall[z]]; wal2 = &wall[wal->point2];
sectnum = thesector[z]; sec = &sector[sectnum];
// if (wal->nextsector < 0) return;
// Without MASKWALL_BAD_ACCESS fix:
// wal->nextsector is -1, WGR2 SVN Lochwood Hollow (Til' Death L1) (or trueror1.map)
nsec = &sector[wal->nextsector];
z1 = max(nsec->ceilingz,sec->ceilingz);
z2 = min(nsec->floorz,sec->floorz);
globalpicnum = wal->overpicnum; if ((uint32_t)globalpicnum >= MAXTILES) globalpicnum = 0;
globvis = globalvisibility;
if (sector[sectnum].visibility != 0) globvis = mulscale4(globvis, (uint8_t)(sector[sectnum].visibility+16));
DO_TILE_ANIM(globalpicnum, (int16_t)thewall[z]+16384);
globalshade = (int32_t)wal->shade;
globalpal = (int32_t)((uint8_t)wal->pal);
globalorientation = (int32_t)wal->cstat;
sx0 = (float)(wal->x-globalposx); sx1 = (float)(wal2->x-globalposx);
sy0 = (float)(wal->y-globalposy); sy1 = (float)(wal2->y-globalposy);
yp0 = sx0*gcosang2 + sy0*gsinang2;
yp1 = sx1*gcosang2 + sy1*gsinang2;
if ((yp0 < SCISDIST) && (yp1 < SCISDIST)) return;
xp0 = sy0*gcosang - sx0*gsinang;
xp1 = sy1*gcosang - sx1*gsinang;
//Clip to close parallel-screen plane
oxp0 = xp0; oyp0 = yp0;
if (yp0 < SCISDIST) { t0 = (SCISDIST-yp0)/(yp1-yp0); xp0 = (xp1-xp0)*t0+xp0; yp0 = SCISDIST; }
else t0 = 0.f;
if (yp1 < SCISDIST) { t1 = (SCISDIST-oyp0)/(yp1-oyp0); xp1 = (xp1-oxp0)*t1+oxp0; yp1 = SCISDIST; }
else { t1 = 1.f; }
m0 = (int32_t)((wal2->x-wal->x)*t0+wal->x);
m1 = (int32_t)((wal2->y-wal->y)*t0+wal->y);
getzsofslope(sectnum,m0,m1,&cz[0],&fz[0]);
getzsofslope(wal->nextsector,m0,m1,&cz[1],&fz[1]);
m0 = (int32_t)((wal2->x-wal->x)*t1+wal->x);
m1 = (int32_t)((wal2->y-wal->y)*t1+wal->y);
getzsofslope(sectnum,m0,m1,&cz[2],&fz[2]);
getzsofslope(wal->nextsector,m0,m1,&cz[3],&fz[3]);
ryp0 = 1.f/yp0; ryp1 = 1.f/yp1;
//Generate screen coordinates for front side of wall
x0 = ghalfx*xp0*ryp0 + ghalfx;
x1 = ghalfx*xp1*ryp1 + ghalfx;
if (x1 <= x0) return;
ryp0 *= gyxscale; ryp1 *= gyxscale;
gdx = (ryp0-ryp1)*gxyaspect / (x0-x1);
gdy = 0;
gdo = ryp0*gxyaspect - gdx*x0;
//gux*x0 + guo = t0*wal->xrepeat*8*yp0
//gux*x1 + guo = t1*wal->xrepeat*8*yp1
gux = (t0*ryp0 - t1*ryp1)*gxyaspect*(float)wal->xrepeat*8.f / (x0-x1);
guo = t0*ryp0*gxyaspect*(float)wal->xrepeat*8.f - gux*x0;
guo += (float)wal->xpanning*gdo;
gux += (float)wal->xpanning*gdx;
guy = 0;
if (!(wal->cstat&4)) i = z1; else i = z2;
// mask
calc_ypanning(i, ryp0, ryp1, x0, x1, wal->ypanning, wal->yrepeat, 0);
if (wal->cstat&8) //xflip
{
t = (float)(wal->xrepeat*8 + wal->xpanning*2);
gux = gdx*t - gux;
guy = gdy*t - guy;
guo = gdo*t - guo;
}
if (wal->cstat&256) { gvx = -gvx; gvy = -gvy; gvo = -gvo; } //yflip
method = 1; pow2xsplit = 1;
if (wal->cstat&128) { if (!(wal->cstat&512)) method = 2; else method = 3; }
method |= DAMETH_WALL;
calc_and_apply_fog(wal->picnum, fogpal_shade(sec, wal->shade), sec->visibility, get_floor_fogpal(sec));
for (i=0; i<2; i++)
{
csy[i] = ((float)(cz[i]-globalposz))*ryp0 + ghoriz;
fsy[i] = ((float)(fz[i]-globalposz))*ryp0 + ghoriz;
csy[i+2] = ((float)(cz[i+2]-globalposz))*ryp1 + ghoriz;
fsy[i+2] = ((float)(fz[i+2]-globalposz))*ryp1 + ghoriz;
}
//Clip 2 quadrilaterals
// /csy3
// / |
// csy0------/----csy2
// | /xxxxxxx|
// | /xxxxxxxxx|
// csy1/xxxxxxxxxxx|
// |xxxxxxxxxxx/fsy3
// |xxxxxxxxx/ |
// |xxxxxxx/ |
// fsy0----/------fsy2
// | /
// fsy1/
dpxy[0].x = x0; dpxy[0].y = csy[1];
dpxy[1].x = x1; dpxy[1].y = csy[3];
dpxy[2].x = x1; dpxy[2].y = fsy[3];
dpxy[3].x = x0; dpxy[3].y = fsy[1];
n = 4;
//Clip to (x0,csy[0])-(x1,csy[2])
n2 = 0; t1 = -((dpxy[0].x-x0)*(csy[2]-csy[0]) - (dpxy[0].y-csy[0])*(x1-x0));
for (i=0; i<n; i++)
{
j = i+1; if (j >= n) j = 0;
t0 = t1; t1 = -((dpxy[j].x-x0)*(csy[2]-csy[0]) - (dpxy[j].y-csy[0])*(x1-x0));
if (t0 >= 0) { dpx2[n2] = dpxy[i].x; dpy2[n2] = dpxy[i].y; n2++; }
if ((t0 >= 0) != (t1 >= 0))
{
r = t0/(t0-t1);
dpx2[n2] = (dpxy[j].x-dpxy[i].x)*r + dpxy[i].x;
dpy2[n2] = (dpxy[j].y-dpxy[i].y)*r + dpxy[i].y;
n2++;
}
}
if (n2 < 3) return;
//Clip to (x1,fsy[2])-(x0,fsy[0])
n = 0; t1 = -((dpx2[0]-x1)*(fsy[0]-fsy[2]) - (dpy2[0]-fsy[2])*(x0-x1));
for (i=0; i<n2; i++)
{
j = i+1; if (j >= n2) j = 0;
t0 = t1; t1 = -((dpx2[j]-x1)*(fsy[0]-fsy[2]) - (dpy2[j]-fsy[2])*(x0-x1));
if (t0 >= 0) { dpxy[n].x = dpx2[i]; dpxy[n].y = dpy2[i]; n++; }
if ((t0 >= 0) != (t1 >= 0))
{
r = t0/(t0-t1);
dpxy[n].x = (dpx2[j]-dpx2[i])*r + dpx2[i];
dpxy[n].y = (dpy2[j]-dpy2[i])*r + dpy2[i];
n++;
}
}
if (n < 3) return;
pow2xsplit = 0;
skyclamphack = 0;
alpha = 0.f;
drawpoly(dpxy, n, method);
}
void polymost_drawsprite(int32_t snum)
{
vec2f_t pxy[6];
float f, c, s, fx, fy, sx0, sy0, sx1, xp0, yp0, xp1, yp1, oxp0, oyp0, ryp0, ryp1, ft[4];
float x0, y0, x1, y1, sc0, sf0, sc1, sf1, px2[6], py2[6], xv, yv, t0, t1;
int32_t i, j, spritenum, xoff=0, yoff=0, method, npoints;
int32_t posx,posy;
int32_t oldsizx, oldsizy;
int32_t tsizx, tsizy;
spritetype *const tspr = tspriteptr[snum];
const sectortype *sec;
if (EDUKE32_PREDICT_FALSE(bad_tspr(tspr)))
return;
spritenum = tspr->owner;
DO_TILE_ANIM(tspr->picnum, spritenum+32768);
globalpicnum = tspr->picnum;
globalshade = tspr->shade;
globalpal = tspr->pal;
globalorientation = tspr->cstat;
globvis = globalvisibility;
if (sector[tspr->sectnum].visibility != 0) globvis = mulscale4(globvis, (uint8_t)(sector[tspr->sectnum].visibility+16));
if ((globalorientation&48) != 48) // only non-voxel sprites should do this
{
int32_t flag;
flag = usehightile && h_xsize[globalpicnum];
xoff = (int32_t)tspr->xoffset;
yoff = (int32_t)tspr->yoffset;
xoff += flag ? h_xoffs[globalpicnum] : picanm[globalpicnum].xofs;
yoff += flag ? h_yoffs[globalpicnum] : picanm[globalpicnum].yofs;
}
method = 1+4;
if (tspr->cstat&2) { if (!(tspr->cstat&512)) method = 2+4; else method = 3+4; }
alpha = spriteext[spritenum].alpha;
#ifdef USE_OPENGL
sec = &sector[tspr->sectnum];
calc_and_apply_fog(tspr->picnum, fogpal_shade(sec, globalshade),
sec->visibility, get_floor_fogpal(sec));
while (!(spriteext[spritenum].flags&SPREXT_NOTMD))
{
if (usemodels && tile2model[Ptile2tile(tspr->picnum,tspr->pal)].modelid >= 0 && tile2model[Ptile2tile(tspr->picnum,tspr->pal)].framenum >= 0)
{
if (polymost_mddraw(tspr))
return;
break; // else, render as flat sprite
}
if (usevoxels && (tspr->cstat&48)!=48 && tiletovox[tspr->picnum] >= 0 && voxmodels[tiletovox[tspr->picnum]])
{
if (polymost_voxdraw(voxmodels[tiletovox[tspr->picnum]], tspr))
return;
break; // else, render as flat sprite
}
if ((tspr->cstat&48)==48 && voxmodels[tspr->picnum])
{
polymost_voxdraw(voxmodels[tspr->picnum], tspr);
return;
}
break;
}
// if (tspr->cstat & (2|16|32) || gltexmayhavealpha(tspr->picnum,tspr->pal))
{
float f;
if (tspr->cstat & 16) // push wall sprites away from wall
{
tspr->x += (sintable[(tspr->ang+512)&2047]>>13);
tspr->y += (sintable[tspr->ang&2047]>>13);
updatesector(tspr->x, tspr->y, &tspr->sectnum);
}
else if (tspr->cstat & 32)
{
if ((tspr->z - sec->ceilingz) < (sec->floorz - tspr->z))
tspr->z += snum;
else tspr->z -= snum;
}
f = (spritenum * (FLT_EPSILON * 1024.f))/(float)(sepldist(globalposx - tspr->x, globalposy - tspr->y));
#ifdef __arm__
glDepthRangef(0.f - f, 1.f - f);
#else
bglDepthRange(0.0 - f, 1.0 - f);
#endif
bglDepthFunc(GL_LESS);
}
#endif
posx=tspr->x;
posy=tspr->y;
if (spriteext[spritenum].flags&SPREXT_AWAY1)
{
posx+=(sintable[(tspr->ang+512)&2047]>>13);
posy+=(sintable[(tspr->ang)&2047]>>13);
}
else if (spriteext[spritenum].flags&SPREXT_AWAY2)
{
posx-=(sintable[(tspr->ang+512)&2047]>>13);
posy-=(sintable[(tspr->ang)&2047]>>13);
}
oldsizx=tsizx=tilesiz[globalpicnum].x;
oldsizy=tsizy=tilesiz[globalpicnum].y;
if (usehightile && h_xsize[globalpicnum])
{
tsizx = h_xsize[globalpicnum];
tsizy = h_ysize[globalpicnum];
}
if (tsizx<=0 || tsizy<=0)
return;
switch ((globalorientation>>4)&3)
{
case 0: //Face sprite
//Project 3D to 2D
if (globalorientation&4) xoff = -xoff;
// NOTE: yoff not negated not for y flipping, unlike wall and floor
// aligned sprites.
sx0 = (float)(tspr->x-globalposx);
sy0 = (float)(tspr->y-globalposy);
xp0 = sy0*gcosang - sx0*gsinang;
yp0 = sx0*gcosang2 + sy0*gsinang2;
if (yp0 <= SCISDIST) return;
ryp0 = 1.f/yp0;
sx0 = ghalfx*xp0*ryp0 + ghalfx;
sy0 = ((float)(tspr->z-globalposz))*gyxscale*ryp0 + ghoriz;
f = ryp0*fxdimen*(1.0f/160.f);
fx = ((float)tspr->xrepeat)*f;
fy = ((float)tspr->yrepeat)*f*((float)yxaspect*(1.0f/65536.f));
sx0 -= fx*(float)xoff; if (tsizx&1) sx0 += fx*0.5f;
sy0 -= fy*(float)yoff;
fx *= ((float)tsizx);
fy *= ((float)tsizy);
pxy[0].x = pxy[3].x = sx0-fx*0.5f; pxy[1].x = pxy[2].x = sx0+fx*0.5f;
if (!(globalorientation&128)) { pxy[0].y = pxy[1].y = sy0-fy; pxy[2].y = pxy[3].y = sy0; }
else { pxy[0].y = pxy[1].y = sy0-fy*0.5f; pxy[2].y = pxy[3].y = sy0+fy*0.5f; }
gdx = gdy = guy = gvx = 0; gdo = ryp0*gviewxrange;
if (!(globalorientation&4))
{ gux = (float)tsizx*gdo/(pxy[1].x-pxy[0].x+.002f); guo = -gux*(pxy[0].x-.001f); }
else { gux = (float)tsizx*gdo/(pxy[0].x-pxy[1].x-.002f); guo = -gux*(pxy[1].x+.001f); }
if (!(globalorientation&8))
{ gvy = (float)tsizy*gdo/(pxy[3].y-pxy[0].y+.002f); gvo = -gvy*(pxy[0].y-.001f); }
else { gvy = (float)tsizy*gdo/(pxy[0].y-pxy[3].y-.002f); gvo = -gvy*(pxy[3].y+.001f); }
// sprite panning
#ifdef USE_OPENGL
if (spriteext[spritenum].xpanning)
{
guy -= gdy*((float) (spriteext[spritenum].xpanning)*(1.0f/255.f))*tsizx;
guo -= gdo*((float) (spriteext[spritenum].xpanning)*(1.0f/255.f))*tsizx;
srepeat = 1;
}
if (spriteext[spritenum].ypanning)
{
gvy -= gdy*((float) (spriteext[spritenum].ypanning)*(1.0f/255.f))*tsizy;
gvo -= gdo*((float) (spriteext[spritenum].ypanning)*(1.0f/255.f))*tsizy;
trepeat = 1;
}
#endif
//Clip sprites to ceilings/floors when no parallaxing and not sloped
if (!(sector[tspr->sectnum].ceilingstat&3))
{
sy0 = ((float)(sector[tspr->sectnum].ceilingz-globalposz))*gyxscale*ryp0 + ghoriz;
if (pxy[0].y < sy0) pxy[0].y = pxy[1].y = sy0;
}
if (!(sector[tspr->sectnum].floorstat&3))
{
sy0 = ((float)(sector[tspr->sectnum].floorz-globalposz))*gyxscale*ryp0 + ghoriz;
if (pxy[2].y > sy0) pxy[2].y = pxy[3].y = sy0;
}
tilesiz[globalpicnum].x = tsizx;
tilesiz[globalpicnum].y = tsizy;
pow2xsplit = 0; drawpoly(pxy, 4, method);
#ifdef USE_OPENGL
srepeat = 0;
trepeat = 0;
#endif
break;
case 1: //Wall sprite
//Project 3D to 2D
if (globalorientation&4) xoff = -xoff;
if (globalorientation&8) yoff = -yoff;
xv = (float)tspr->xrepeat * (float)sintable[(tspr->ang)&2047] * (1.0f/65536.f);
yv = (float)tspr->xrepeat * (float)sintable[(tspr->ang+1536)&2047] * (1.0f/65536.f);
f = (float)(tsizx>>1) + (float)xoff;
x0 = (float)(posx-globalposx) - xv*f; x1 = xv*(float)tsizx + x0;
y0 = (float)(posy-globalposy) - yv*f; y1 = yv*(float)tsizx + y0;
yp0 = x0*gcosang2 + y0*gsinang2;
yp1 = x1*gcosang2 + y1*gsinang2;
if ((yp0 <= SCISDIST) && (yp1 <= SCISDIST)) return;
xp0 = y0*gcosang - x0*gsinang;
xp1 = y1*gcosang - x1*gsinang;
//Clip to close parallel-screen plane
oxp0 = xp0; oyp0 = yp0;
if (yp0 < SCISDIST) { t0 = (SCISDIST-yp0)/(yp1-yp0); xp0 = (xp1-xp0)*t0+xp0; yp0 = SCISDIST; }
else { t0 = 0.f; }
if (yp1 < SCISDIST) { t1 = (SCISDIST-oyp0)/(yp1-oyp0); xp1 = (xp1-oxp0)*t1+oxp0; yp1 = SCISDIST; }
else { t1 = 1.f; }
f = ((float)tspr->yrepeat) * (float)tsizy * 4;
ryp0 = 1.f/yp0;
ryp1 = 1.f/yp1;
sx0 = ghalfx*xp0*ryp0 + ghalfx;
sx1 = ghalfx*xp1*ryp1 + ghalfx;
ryp0 *= gyxscale;
ryp1 *= gyxscale;
tspr->z -= ((yoff*tspr->yrepeat)<<2);
if (globalorientation&128)
{
tspr->z += ((tsizy*tspr->yrepeat)<<1);
if (tsizy&1) tspr->z += (tspr->yrepeat<<1); //Odd yspans
}
sc0 = ((float)(tspr->z-globalposz-f))*ryp0 + ghoriz;
sc1 = ((float)(tspr->z-globalposz-f))*ryp1 + ghoriz;
sf0 = ((float)(tspr->z-globalposz))*ryp0 + ghoriz;
sf1 = ((float)(tspr->z-globalposz))*ryp1 + ghoriz;
gdx = (ryp0-ryp1)*gxyaspect / (sx0-sx1);
gdy = 0;
gdo = ryp0*gxyaspect - gdx*sx0;
//Original equations:
//(gux*sx0 + guo)/(gdx*sx1 + gdo) = tsizx*t0
//(gux*sx1 + guo)/(gdx*sx1 + gdo) = tsizx*t1
//
// gvx*sx0 + gvy*sc0 + gvo = 0
// gvy*sx1 + gvy*sc1 + gvo = 0
//(gvx*sx0 + gvy*sf0 + gvo)/(gdx*sx0 + gdo) = tsizy
//(gvx*sx1 + gvy*sf1 + gvo)/(gdx*sx1 + gdo) = tsizy
//gux*sx0 + guo = t0*tsizx*yp0
//gux*sx1 + guo = t1*tsizx*yp1
if (globalorientation&4) { t0 = 1.f-t0; t1 = 1.f-t1; }
//sprite panning
#ifdef USE_OPENGL
if (spriteext[spritenum].xpanning)
{
t0 -= ((float) (spriteext[spritenum].xpanning)*(1.0f/255.f));
t1 -= ((float) (spriteext[spritenum].xpanning)*(1.0f/255.f));
srepeat = 1;
}
#endif
gux = (t0*ryp0 - t1*ryp1)*gxyaspect*(float) tsizx / (sx0-sx1);
guy = 0;
guo = t0*ryp0*gxyaspect*(float)tsizx - gux*sx0;
//gvx*sx0 + gvy*sc0 + gvo = 0
//gvx*sx1 + gvy*sc1 + gvo = 0
//gvx*sx0 + gvy*sf0 + gvo = tsizy*(gdx*sx0 + gdo)
f = ((float)tsizy)*(gdx*sx0 + gdo) / ((sx0-sx1)*(sc0-sf0));
if (!(globalorientation&8))
{
gvx = (sc0-sc1)*f;
gvy = (sx1-sx0)*f;
gvo = -gvx*sx0 - gvy*sc0;
}
else
{
gvx = (sf1-sf0)*f;
gvy = (sx0-sx1)*f;
gvo = -gvx*sx0 - gvy*sf0;
}
// sprite panning
#ifdef USE_OPENGL
if (spriteext[spritenum].ypanning)
{
gvx -= gdx*((float) (spriteext[spritenum].ypanning)*(1.0f/255.f))*tsizy;
gvy -= gdy*((float) (spriteext[spritenum].ypanning)*(1.0f/255.f))*tsizy;
gvo -= gdo*((float) (spriteext[spritenum].ypanning)*(1.0f/255.f))*tsizy;
trepeat = 1;
}
#endif
//Clip sprites to ceilings/floors when no parallaxing
if (!(sector[tspr->sectnum].ceilingstat&1))
{
f = (float)((tspr->yrepeat * tsizy)<<2);
if (sector[tspr->sectnum].ceilingz > tspr->z-f)
{
sc0 = (float)(sector[tspr->sectnum].ceilingz-globalposz)*ryp0 + ghoriz;
sc1 = (float)(sector[tspr->sectnum].ceilingz-globalposz)*ryp1 + ghoriz;
}
}
if (!(sector[tspr->sectnum].floorstat&1))
{
if (sector[tspr->sectnum].floorz < tspr->z)
{
sf0 = (float)(sector[tspr->sectnum].floorz-globalposz)*ryp0 + ghoriz;
sf1 = (float)(sector[tspr->sectnum].floorz-globalposz)*ryp1 + ghoriz;
}
}
if (sx0 > sx1)
{
if (globalorientation&64) return; //1-sided sprite
swapfloat(&sx0, &sx1);
swapfloat(&sc0, &sc1);
swapfloat(&sf0, &sf1);
}
pxy[0].x = sx0; pxy[0].y = sc0;
pxy[1].x = sx1; pxy[1].y = sc1;
pxy[2].x = sx1; pxy[2].y = sf1;
pxy[3].x = sx0; pxy[3].y = sf0;
tilesiz[globalpicnum].x = tsizx;
tilesiz[globalpicnum].y = tsizy;
pow2xsplit = 0; drawpoly(pxy, 4,method);
#ifdef USE_OPENGL
srepeat = 0;
trepeat = 0;
#endif
break;
case 2: //Floor sprite
if ((globalorientation&64) != 0)
if ((globalposz > tspr->z) == (!(globalorientation&8)))
return;
if ((globalorientation&4) > 0) xoff = -xoff;
if ((globalorientation&8) > 0) yoff = -yoff;
i = (tspr->ang&2047);
c = sintable[(i+512)&2047]*(1.0f/65536.f);
s = sintable[i]*(1.0f/65536.f);
x0 = (float)((tsizx>>1)-xoff)*tspr->xrepeat;
y0 = (float)((tsizy>>1)-yoff)*tspr->yrepeat;
x1 = (float)((tsizx>>1)+xoff)*tspr->xrepeat;
y1 = (float)((tsizy>>1)+yoff)*tspr->yrepeat;
//Project 3D to 2D
for (j=0; j<4; j++)
{
sx0 = (float)(tspr->x-globalposx);
sy0 = (float)(tspr->y-globalposy);
if ((j+0)&2) { sy0 -= s*y0; sx0 -= c*y0; }
else { sy0 += s*y1; sx0 += c*y1; }
if ((j+1)&2) { sx0 -= s*x0; sy0 += c*x0; }
else { sx0 += s*x1; sy0 -= c*x1; }
pxy[j].x = sy0*gcosang - sx0*gsinang;
pxy[j].y = sx0*gcosang2 + sy0*gsinang2;
}
if (tspr->z < globalposz) //if floor sprite is above you, reverse order of points
{
swapfloat(&pxy[0].x, &pxy[1].x);
swapfloat(&pxy[2].x, &pxy[3].x);
swapfloat(&pxy[0].y, &pxy[1].y);
swapfloat(&pxy[2].y, &pxy[3].y);
}
//Clip to SCISDIST plane
npoints = 0;
for (i=0; i<4; i++)
{
j = ((i+1)&3);
if (pxy[i].y >= SCISDIST) { px2[npoints] = pxy[i].x; py2[npoints] = pxy[i].y; npoints++; }
if ((pxy[i].y >= SCISDIST) != (pxy[j].y >= SCISDIST))
{
f = (SCISDIST-pxy[i].y)/(pxy[j].y-pxy[i].y);
px2[npoints] = (pxy[j].x-pxy[i].x)*f + pxy[i].x;
py2[npoints] = (pxy[j].y-pxy[i].y)*f + pxy[i].y; npoints++;
}
}
if (npoints < 3) return;
//Project rotated 3D points to screen
f = ((float)(tspr->z-globalposz))*gyxscale;
for (j=0; j<npoints; j++)
{
ryp0 = 1/py2[j];
pxy[j].x = ghalfx*px2[j]*ryp0 + ghalfx;
pxy[j].y = f*ryp0 + ghoriz;
}
//gd? Copied from floor rendering code
gdx = 0;
gdy = gxyaspect / (double)(tspr->z-globalposz);
gdo = -ghoriz*gdy;
//copied&modified from relative alignment
xv = (float)tspr->x + s*x1 + c*y1; fx = (float)-(x0+x1)*s;
yv = (float)tspr->y + s*y1 - c*x1; fy = (float)+(x0+x1)*c;
f = polymost_invsqrt(fx*fx+fy*fy); fx *= f; fy *= f;
ft[2] = singlobalang*fy + cosglobalang*fx;
ft[3] = singlobalang*fx - cosglobalang*fy;
ft[0] = ((float)(globalposy-yv))*fy + ((float)(globalposx-xv))*fx;
ft[1] = ((float)(globalposx-xv))*fy - ((float)(globalposy-yv))*fx;
gux = (float)ft[3]*fviewingrange/(-65536.f*262144.f);
gvx = (float)ft[2]*fviewingrange/(-65536.f*262144.f);
guy = (double)ft[0]*gdy; gvy = (double)ft[1]*gdy;
guo = (double)ft[0]*gdo; gvo = (double)ft[1]*gdo;
guo += (double)(ft[2]*(1.0f/262144.f)-gux)*ghalfx;
gvo -= (double)(ft[3]*(1.0f/262144.f)+gvx)*ghalfx;
f = 4.f/(float)tspr->xrepeat; gux *= f; guy *= f; guo *= f;
f =-4.f/(float)tspr->yrepeat; gvx *= f; gvy *= f; gvo *= f;
if (globalorientation&4)
{
gux = ((float)tsizx)*gdx - gux;
guy = ((float)tsizx)*gdy - guy;
guo = ((float)tsizx)*gdo - guo;
}
// sprite panning
#ifdef USE_OPENGL
if (spriteext[spritenum].xpanning)
{
guy -= gdy*((float) (spriteext[spritenum].xpanning)*(1.0f/255.f))*tsizx;
guo -= gdo*((float) (spriteext[spritenum].xpanning)*(1.0f/255.f))*tsizx;
srepeat = 1;
}
if (spriteext[spritenum].ypanning)
{
gvy -= gdy*((float) (spriteext[spritenum].ypanning)*(1.0f/255.f))*tsizy;
gvo -= gdo*((float) (spriteext[spritenum].ypanning)*(1.0f/255.f))*tsizy;
trepeat = 1;
}
#endif
tilesiz[globalpicnum].x = tsizx;
tilesiz[globalpicnum].y = tsizy;
pow2xsplit = 0; drawpoly(pxy, npoints,method);
#ifdef USE_OPENGL
srepeat = 0;
trepeat = 0;
#endif
break;
case 3: //Voxel sprite
break;
}
tilesiz[globalpicnum].x=oldsizx;
tilesiz[globalpicnum].y=oldsizy;
}
EDUKE32_STATIC_ASSERT((int)RS_YFLIP == (int)HUDFLAG_FLIPPED);
//sx,sy center of sprite; screen coords*65536
//z zoom*65536. > is zoomed in
//a angle (0 is default)
//dastat&1 1:translucence
//dastat&2 1:auto-scale mode (use 320*200 coordinates)
//dastat&4 1:y-flip
//dastat&8 1:don't clip to startumost/startdmost
//dastat&16 1:force point passed to be top-left corner, 0:Editart center
//dastat&32 1:reverse translucence
//dastat&64 1:non-masked, 0:masked
//dastat&128 1:draw all pages (permanent)
//cx1,... clip window (actual screen coords)
#ifdef USE_OPENGL
void polymost_dorotatespritemodel(int32_t sx, int32_t sy, int32_t z, int16_t a, int16_t picnum,
int8_t dashade, char dapalnum, int32_t dastat, uint8_t daalpha, int32_t uniqid)
{
int32_t xoff, yoff, xsiz, ysiz;
int32_t ogshade, ogpal;
float ogchang, ogshang, ogctang, ogstang;
float d, cosang, sinang, cosang2, sinang2;
float m[4][4];
const int32_t tilenum = Ptile2tile(picnum, dapalnum);
if (tile2model[tilenum].modelid >= 0 &&
tile2model[tilenum].framenum >= 0)
{
int32_t oldviewingrange;
float ogxyaspect;
vec3f_t vec1;
spritetype tspr;
Bmemset(&tspr, 0, sizeof(spritetype));
if (hudmem[(dastat&4)>>2][picnum].flags & HUDFLAG_HIDE)
return;
ogchang = gchang; gchang = 1.f;
ogshang = gshang; gshang = 0.f; d = (float) z*(1.0f/(65536.f*16384.f));
ogctang = gctang; gctang = (float) sintable[(a+512)&2047]*d;
ogstang = gstang; gstang = (float) sintable[a&2047]*d;
ogshade = globalshade; globalshade = dashade;
ogpal = globalpal; globalpal = (int32_t) ((uint8_t) dapalnum);
ogxyaspect = gxyaspect; gxyaspect = 1.f;
oldviewingrange = viewingrange; viewingrange = 65536;
vec1 = hudmem[(dastat&4)>>2][picnum].add;
#ifdef POLYMER
if (pr_overridehud) {
vec1.x = pr_hudxadd;
vec1.y = pr_hudyadd;
vec1.z = pr_hudzadd;
}
#endif
if (!(hudmem[(dastat&4)>>2][picnum].flags & HUDFLAG_NOBOB))
{
float fx = ((float) sx)*(1.f/65536.f);
float fy = ((float) sy)*(1.f/65536.f);
if (dastat & RS_TOPLEFT)
{
xsiz = tilesiz[picnum].x; ysiz = tilesiz[picnum].y;
xoff = picanm[picnum].xofs + (xsiz>>1);
yoff = picanm[picnum].yofs + (ysiz>>1);
d = (float) z*(1.0f/(65536.f*16384.f));
cosang2 = cosang = (float) sintable[(a+512)&2047]*d;
sinang2 = sinang = (float) sintable[a&2047]*d;
if ((dastat&RS_AUTO) || (!(dastat&RS_NOCLIP))) //Don't aspect unscaled perms
{
d = (float) xyaspect*(1.0f/65536.f); cosang2 *= d; sinang2 *= d;
}
fx += -(float) xoff*cosang2+ (float) yoff*sinang2;
fy += -(float) xoff*sinang - (float) yoff*cosang;
}
if (!(dastat & RS_AUTO))
{
vec1.x += fx/((float) (xdim<<15))-1.f; //-1: left of screen, +1: right of screen
vec1.y += fy/((float) (ydim<<15))-1.f; //-1: top of screen, +1: bottom of screen
}
else
{
vec1.x += fx*(1.0f/160.f)-1.f; //-1: left of screen, +1: right of screen
vec1.y += fy*(1.0f/100.f)-1.f; //-1: top of screen, +1: bottom of screen
}
}
tspr.ang = hudmem[(dastat&4)>>2][picnum].angadd+globalang;
#ifdef POLYMER
if (pr_overridehud) {
tspr.ang = pr_hudangadd + globalang;
}
#endif
if (dastat & RS_YFLIP) { vec1.x = -vec1.x; vec1.y = -vec1.y; }
// In Polymost, we don't care if the model is very big
if (getrendermode() < REND_POLYMER)
{
tspr.xrepeat = tspr.yrepeat = 32;
tspr.x = globalposx + Blrintf((gcosang*vec1.z - gsinang*vec1.x)*16384.f);
tspr.y = globalposy + Blrintf((gsinang*vec1.z + gcosang*vec1.x)*16384.f);
tspr.z = globalposz + Blrintf(vec1.y * (16384.f * 0.8f));
}
else
{
vec3f_t vec2;
tspr.xrepeat = tspr.yrepeat = 5;
vec2.x = fglobalposx + (gcosang*vec1.z - gsinang*vec1.x)*2560.f;
vec2.y = fglobalposy + (gsinang*vec1.z + gcosang*vec1.x)*2560.f;
vec2.z = fglobalposz + (vec1.y*(2560.f*0.8f));
Bmemcpy(&tspr.x, &vec2, sizeof(vec3f_t));
}
tspr.picnum = picnum;
tspr.shade = dashade;
tspr.pal = dapalnum;
tspr.owner = uniqid+MAXSPRITES;
// 1 -> 1
// 32 -> 32*16 = 512
// 4 -> 8
tspr.cstat = globalorientation = (dastat&RS_TRANS1) | ((dastat&RS_TRANS2)<<4) | ((dastat&RS_YFLIP)<<1);
if ((dastat&(RS_AUTO|RS_NOCLIP)) == RS_AUTO)
bglViewport(windowx1, yres-(windowy2+1), windowx2-windowx1+1, windowy2-windowy1+1);
else
{
bglViewport(0, 0, xdim, ydim);
glox1 = -1; //Force fullscreen (glox1=-1 forces it to restore)
}
if (getrendermode() < REND_POLYMER)
{
bglMatrixMode(GL_PROJECTION);
Bmemset(m, 0, sizeof(m));
if ((dastat&(RS_AUTO|RS_NOCLIP)) == RS_AUTO)
{
float f = 1.f;
int32_t fov = hudmem[(dastat&4)>>2][picnum].fov;
#ifdef POLYMER
if (pr_overridehud)
fov = pr_hudfov;
#endif
if (fov != -1)
f = 1.f/tanf(((float)fov * 2.56f) * ((.5f * PI) * (1.0f/2048.f)));
m[0][0] = f*fydimen; m[0][2] = 1.f;
m[1][1] = f*fxdimen; m[1][2] = 1.f;
m[2][2] = 1.f; m[2][3] = fydimen;
m[3][2] =-1.f;
}
else
{
m[0][0] = m[2][3] = 1.f;
m[1][1] = fxdim/fydim;
m[2][2] = 1.0001f;
m[3][2] = 1-m[2][2];
}
bglLoadMatrixf(&m[0][0]);
bglMatrixMode(GL_MODELVIEW);
bglLoadIdentity();
}
if (hudmem[(dastat&4)>>2][picnum].flags & HUDFLAG_NODEPTH)
bglDisable(GL_DEPTH_TEST);
else
{
static int32_t onumframes = 0;
bglEnable(GL_DEPTH_TEST);
if (onumframes != numframes)
{
onumframes = numframes;
bglClear(GL_DEPTH_BUFFER_BIT);
}
}
#ifdef USE_OPENGL
spriteext[tspr.owner].alpha = daalpha * (1.0f / 255.0f);
bglDisable(GL_FOG);
if (getrendermode() == REND_POLYMOST)
polymost_mddraw(&tspr);
# ifdef POLYMER
else
{
int32_t fov;
tspriteptr[MAXSPRITESONSCREEN] = &tspr;
bglEnable(GL_ALPHA_TEST);
bglEnable(GL_BLEND);
spriteext[tspr.owner].roll = a;
spriteext[tspr.owner].offset.z = z;
fov = hudmem[(dastat&4)>>2][picnum].fov;
if (fov == -1)
fov = pr_fov;
if (pr_overridehud)
fov = pr_hudfov;
polymer_setaspect(fov);
polymer_drawsprite(MAXSPRITESONSCREEN);
polymer_setaspect(pr_fov);
spriteext[tspr.owner].offset.z = 0;
spriteext[tspr.owner].roll = 0;
bglDisable(GL_BLEND);
bglDisable(GL_ALPHA_TEST);
}
# endif
if (!nofog) bglEnable(GL_FOG);
#else
mddraw(&tspr);
spriteext[tspr.owner].alpha = 0.f;
#endif
viewingrange = oldviewingrange;
gxyaspect = ogxyaspect;
globalshade = ogshade;
globalpal = ogpal;
gchang = ogchang;
gshang = ogshang;
gctang = ogctang;
gstang = ogstang;
return;
}
}
#endif
void polymost_dorotatesprite(int32_t sx, int32_t sy, int32_t z, int16_t a, int16_t picnum,
int8_t dashade, char dapalnum, int32_t dastat, uint8_t daalpha,
int32_t cx1, int32_t cy1, int32_t cx2, int32_t cy2, int32_t uniqid)
{
int32_t n, nn, xoff, yoff, xsiz, ysiz, method;
int32_t ogpicnum, ogshade, ogpal, ofoffset;
float ogchang, ogshang, ogctang, ogstang, oghalfx, oghoriz;
float ogrhalfxdown10, ogrhalfxdown10x;
float d, cosang, sinang, cosang2, sinang2, px2[8], py2[8];
float m[4][4];
vec2f_t pxy[8];
int32_t ourxyaspect;
#if defined(USE_OPENGL) && defined(POLYMER)
const int32_t olddetailmapping = r_detailmapping, oldglowmapping = r_glowmapping;
const int32_t oldnormalmapping = pr_normalmapping;
#endif
#ifdef USE_OPENGL
if (getrendermode() >= REND_POLYMOST && usemodels && hudmem[(dastat&4)>>2][picnum].angadd)
{
polymost_dorotatespritemodel(sx, sy, z, a, picnum, dashade, dapalnum, dastat, daalpha, uniqid);
return;
}
#endif
globvis = 0;
ogpicnum = globalpicnum; globalpicnum = picnum;
ogshade = globalshade; globalshade = dashade;
ogpal = globalpal; globalpal = (int32_t)((uint8_t)dapalnum);
oghalfx = ghalfx; ghalfx = fxdim * .5f;
ogrhalfxdown10 = grhalfxdown10; grhalfxdown10 = 1.f/(ghalfx*1024.f);
ogrhalfxdown10x = grhalfxdown10x; grhalfxdown10x = grhalfxdown10;
oghoriz = ghoriz; ghoriz = fydim * .5f;
ofoffset = frameoffset; frameoffset = frameplace;
ogchang = gchang; gchang = 1.f;
ogshang = gshang; gshang = 0.f;
ogctang = gctang; gctang = 1.f;
ogstang = gstang; gstang = 0.f;
#ifdef USE_OPENGL
if (getrendermode() >= REND_POLYMOST)
{
bglViewport(0,0,xdim,ydim); glox1 = -1; //Force fullscreen (glox1=-1 forces it to restore)
bglMatrixMode(GL_PROJECTION);
Bmemset(m,0,sizeof(m));
m[0][0] = m[2][3] = 1.0f; m[1][1] = fxdim/fydim; m[2][2] = 1.0001f; m[3][2] = 1-m[2][2];
bglPushMatrix(); bglLoadMatrixf(&m[0][0]);
bglMatrixMode(GL_MODELVIEW);
bglPushMatrix();
bglLoadIdentity();
bglDisable(GL_DEPTH_TEST);
bglDisable(GL_ALPHA_TEST);
bglEnable(GL_TEXTURE_2D);
# ifdef POLYMER
if (getrendermode() == REND_POLYMER) {
pr_normalmapping = 0;
polymer_inb4rotatesprite(picnum, dapalnum, dashade);
r_detailmapping = 0;
r_glowmapping = 0;
}
# endif
}
#endif
method = 0;
if (!(dastat & RS_NOMASK))
{
if (dastat & RS_TRANS1)
method = (dastat & RS_TRANS2) ? 3 : 2;
else
method = 1;
}
method |= 4; //Use OpenGL clamping - dorotatesprite never repeats
alpha = daalpha * (1.0f / 255.0f);
xsiz = tilesiz[globalpicnum].x;
ysiz = tilesiz[globalpicnum].y;
if (dastat & RS_TOPLEFT)
{
xoff = 0;
yoff = 0;
}
else
{
xoff = picanm[globalpicnum].xofs + (xsiz>>1);
yoff = picanm[globalpicnum].yofs + (ysiz>>1);
}
if (dastat & RS_YFLIP)
yoff = ysiz-yoff;
{
int32_t temp;
dorotspr_handle_bit2(&sx, &sy, &z, dastat, cx1+cx2, cy1+cy2, &temp, &ourxyaspect);
}
d = (float)z*(1.0f/(65536.f*16384.f));
cosang2 = cosang = (float)sintable[(a+512)&2047]*d;
sinang2 = sinang = (float)sintable[a&2047]*d;
if ((dastat&RS_AUTO) || (!(dastat&RS_NOCLIP))) //Don't aspect unscaled perms
{
d = (float)ourxyaspect*(1.0f/65536.f);
cosang2 *= d;
sinang2 *= d;
}
pxy[0].x = (float)sx*(1.0f/65536.f) - (float)xoff*cosang2 + (float)yoff*sinang2;
pxy[0].y = (float)sy*(1.0f/65536.f) - (float)xoff*sinang - (float)yoff*cosang;
pxy[1].x = pxy[0].x + (float)xsiz*cosang2;
pxy[1].y = pxy[0].y + (float)xsiz*sinang;
pxy[3].x = pxy[0].x - (float)ysiz*sinang2;
pxy[3].y = pxy[0].y + (float)ysiz*cosang;
pxy[2].x = pxy[1].x+pxy[3].x-pxy[0].x;
pxy[2].y = pxy[1].y+pxy[3].y-pxy[0].y;
n = 4;
gdx = 0; gdy = 0; gdo = 1.f;
//px[0]*gux + py[0]*guy + guo = 0
//px[1]*gux + py[1]*guy + guo = xsiz-.0001
//px[3]*gux + py[3]*guy + guo = 0
d = 1.f/(pxy[0].x*(pxy[1].y-pxy[3].y) + pxy[1].x*(pxy[3].y-pxy[0].y) + pxy[3].x*(pxy[0].y-pxy[1].y));
gux = (pxy[3].y-pxy[0].y)*((float)xsiz-.0001f)*d;
guy = (pxy[0].x-pxy[3].x)*((float)xsiz-.0001f)*d;
guo = 0 - pxy[0].x*gux - pxy[0].y*guy;
if (!(dastat & RS_YFLIP))
{
//px[0]*gvx + py[0]*gvy + gvo = 0
//px[1]*gvx + py[1]*gvy + gvo = 0
//px[3]*gvx + py[3]*gvy + gvo = ysiz-.0001
gvx = (pxy[0].y-pxy[1].y)*((float)ysiz-.0001f)*d;
gvy = (pxy[1].x-pxy[0].x)*((float)ysiz-.0001f)*d;
gvo = 0 - pxy[0].x*gvx - pxy[0].y*gvy;
}
else
{
//px[0]*gvx + py[0]*gvy + gvo = ysiz-.0001
//px[1]*gvx + py[1]*gvy + gvo = ysiz-.0001
//px[3]*gvx + py[3]*gvy + gvo = 0
gvx = (pxy[1].y-pxy[0].y)*((float)ysiz-.0001f)*d;
gvy = (pxy[0].x-pxy[1].x)*((float)ysiz-.0001f)*d;
gvo = (float)ysiz-.0001f - pxy[0].x*gvx - pxy[0].y*gvy;
}
cx2++; cy2++;
//Clippoly4 (converted from int32_t to double)
nn = z = 0;
do
{
float fx, x1, x2;
int32_t zz = z+1; if (zz == n) zz = 0;
x1 = pxy[z].x; x2 = pxy[zz].x-x1; if (((float)cx1 <= x1) && (x1 <= (float)cx2)) { px2[nn] = x1; py2[nn] = pxy[z].y; nn++; }
if (x2 <= 0) fx = (float)cx2; else fx = (float)cx1; d = fx-x1;
if ((d < x2) != (d < 0)) { px2[nn] = fx; py2[nn] = (pxy[zz].y-pxy[z].y)*d/x2 + pxy[z].y; nn++; }
if (x2 <= 0) fx = (float)cx1; else fx = (float)cx2; d = fx-x1;
if ((d < x2) != (d < 0)) { px2[nn] = fx; py2[nn] = (pxy[zz].y-pxy[z].y)*d/x2 + pxy[z].y; nn++; }
z = zz;
}
while (z);
if (nn >= 3)
{
n = z = 0;
do
{
float fy, y1, y2;
int32_t zz = z+1; if (zz == nn) zz = 0;
y1 = py2[z]; y2 = py2[zz]-y1; if ((cy1 <= y1) && (y1 <= cy2)) { pxy[n].y = y1; pxy[n].x = px2[z]; n++; }
if (y2 <= 0) fy = (float)cy2; else fy = (float)cy1; d = fy-y1;
if ((d < y2) != (d < 0)) { pxy[n].y = fy; pxy[n].x = (px2[zz]-px2[z])*d/y2 + px2[z]; n++; }
if (y2 <= 0) fy = (float)cy1; else fy = (float)cy2; d = fy-y1;
if ((d < y2) != (d < 0)) { pxy[n].y = fy; pxy[n].x = (px2[zz]-px2[z])*d/y2 + px2[z]; n++; }
z = zz;
}
while (z);
#ifdef USE_OPENGL
bglDisable(GL_FOG);
pow2xsplit = 0; drawpoly(pxy, n,method);
if (!nofog) bglEnable(GL_FOG);
#else
pow2xsplit = 0; drawpoly(pxy, n,method);
#endif
}
#ifdef USE_OPENGL
if (getrendermode() >= REND_POLYMOST)
{
# ifdef POLYMER
if (getrendermode() == REND_POLYMER) {
r_detailmapping = olddetailmapping;
r_glowmapping = oldglowmapping;
polymer_postrotatesprite();
pr_normalmapping = oldnormalmapping;
}
# endif
bglMatrixMode(GL_PROJECTION); bglPopMatrix();
bglMatrixMode(GL_MODELVIEW); bglPopMatrix();
}
#endif
globalpicnum = ogpicnum;
globalshade = ogshade;
globalpal = ogpal;
ghalfx = oghalfx;
grhalfxdown10 = ogrhalfxdown10;
grhalfxdown10x = ogrhalfxdown10x;
ghoriz = oghoriz;
frameoffset = ofoffset;
gchang = ogchang;
gshang = ogshang;
gctang = ogctang;
gstang = ogstang;
}
#ifdef USE_OPENGL
static float trapextx[2];
static void drawtrap(float x0, float x1, float y0, float x2, float x3, float y1)
{
float px[4], py[4];
int32_t i, n;
if (y0 == y1) return;
px[0] = x0; py[0] = y0; py[2] = y1;
if (x0 == x1) { px[1] = x3; py[1] = y1; px[2] = x2; n = 3; }
else if (x2 == x3) { px[1] = x1; py[1] = y0; px[2] = x3; n = 3; }
else { px[1] = x1; py[1] = y0; px[2] = x3; px[3] = x2; py[3] = y1; n = 4; }
bglBegin(GL_TRIANGLE_FAN);
for (i=0; i<n; i++)
{
px[i] = min(max(px[i],trapextx[0]),trapextx[1]);
bglTexCoord2f(px[i]*gux + py[i]*guy + guo,
px[i]*gvx + py[i]*gvy + gvo);
bglVertex2f(px[i],py[i]);
}
bglEnd();
}
static void tessectrap(const float *px, const float *py, const int32_t *point2, int32_t numpoints)
{
float x0, x1, m0, m1;
int32_t i, j, k, z, i0, i1, i2, i3, npoints, gap, numrst;
static int32_t allocpoints = 0, *slist = 0, *npoint2 = 0;
typedef struct { float x, y, xi; int32_t i; } raster;
static raster *rst = 0;
if (numpoints+16 > allocpoints) //16 for safety
{
allocpoints = numpoints+16;
rst = (raster *)Xrealloc(rst,allocpoints*sizeof(raster));
slist = (int32_t *)Xrealloc(slist,allocpoints*sizeof(int32_t));
npoint2 = (int32_t *)Xrealloc(npoint2,allocpoints*sizeof(int32_t));
}
//Remove unnecessary collinear points:
for (i=0; i<numpoints; i++) npoint2[i] = point2[i];
npoints = numpoints; z = 0;
for (i=0; i<numpoints; i++)
{
j = npoint2[i]; if ((point2[i] < i) && (i < numpoints-1)) z = 3;
if (j < 0) continue;
k = npoint2[j];
m0 = (px[j]-px[i])*(py[k]-py[j]);
m1 = (py[j]-py[i])*(px[k]-px[j]);
if (m0 < m1) { z |= 1; continue; }
if (m0 > m1) { z |= 2; continue; }
npoint2[i] = k; npoint2[j] = -1; npoints--; i--; //collinear
}
if (!z) return;
trapextx[0] = trapextx[1] = px[0];
for (i=j=0; i<numpoints; i++)
{
if (npoint2[i] < 0) continue;
if (px[i] < trapextx[0]) trapextx[0] = px[i];
if (px[i] > trapextx[1]) trapextx[1] = px[i];
slist[j++] = i;
}
if (z != 3) //Simple polygon... early out
{
bglBegin(GL_TRIANGLE_FAN);
for (i=0; i<npoints; i++)
{
j = slist[i];
bglTexCoord2f(px[j]*gux + py[j]*guy + guo,
px[j]*gvx + py[j]*gvy + gvo);
bglVertex2f(px[j],py[j]);
}
bglEnd();
return;
}
//Sort points by y's
for (gap=(npoints>>1); gap; gap>>=1)
for (i=0; i<npoints-gap; i++)
for (j=i; j>=0; j-=gap)
{
if (py[npoint2[slist[j]]] <= py[npoint2[slist[j+gap]]]) break;
k = slist[j]; slist[j] = slist[j+gap]; slist[j+gap] = k;
}
numrst = 0;
for (z=0; z<npoints; z++)
{
i0 = slist[z]; i1 = npoint2[i0]; if (py[i0] == py[i1]) continue;
i2 = i1; i3 = npoint2[i1];
if (py[i1] == py[i3]) { i2 = i3; i3 = npoint2[i3]; }
//i0 i3
// \ /
// i1--i2
// / \ ~
//i0 i3
if ((py[i1] < py[i0]) && (py[i2] < py[i3])) //Insert raster
{
for (i=numrst; i>0; i--)
{
if (rst[i-1].xi*(py[i1]-rst[i-1].y) + rst[i-1].x < px[i1]) break;
rst[i+1] = rst[i-1];
}
numrst += 2;
if (i&1) //split inside area
{
j = i-1;
x0 = (py[i1] - rst[j ].y)*rst[j ].xi + rst[j ].x;
x1 = (py[i1] - rst[j+1].y)*rst[j+1].xi + rst[j+1].x;
drawtrap(rst[j].x,rst[j+1].x,rst[j].y,x0,x1,py[i1]);
rst[j ].x = x0; rst[j ].y = py[i1];
rst[j+3].x = x1; rst[j+3].y = py[i1];
}
m0 = (px[i0]-px[i1]) / (py[i0]-py[i1]);
m1 = (px[i3]-px[i2]) / (py[i3]-py[i2]);
j = ((px[i1] > px[i2]) || ((i1 == i2) && (m0 >= m1))) + i;
k = (i<<1)+1 - j;
rst[j].i = i0; rst[j].xi = m0; rst[j].x = px[i1]; rst[j].y = py[i1];
rst[k].i = i3; rst[k].xi = m1; rst[k].x = px[i2]; rst[k].y = py[i2];
}
else
{
//NOTE:don't count backwards!
if (i1 == i2) { for (i=0; i<numrst; i++) if (rst[i].i == i1) break; }
else { for (i=0; i<numrst; i++) if ((rst[i].i == i1) || (rst[i].i == i2)) break; }
j = i&~1;
if ((py[i1] > py[i0]) && (py[i2] > py[i3])) //Delete raster
{
for (; j<=i+1; j+=2)
{
x0 = (py[i1] - rst[j ].y)*rst[j ].xi + rst[j ].x;
if ((i == j) && (i1 == i2)) x1 = x0; else x1 = (py[i1] - rst[j+1].y)*rst[j+1].xi + rst[j+1].x;
drawtrap(rst[j].x,rst[j+1].x,rst[j].y,x0,x1,py[i1]);
rst[j ].x = x0; rst[j ].y = py[i1];
rst[j+1].x = x1; rst[j+1].y = py[i1];
}
numrst -= 2; for (; i<numrst; i++) rst[i] = rst[i+2];
}
else
{
x0 = (py[i1] - rst[j ].y)*rst[j ].xi + rst[j ].x;
x1 = (py[i1] - rst[j+1].y)*rst[j+1].xi + rst[j+1].x;
drawtrap(rst[j].x,rst[j+1].x,rst[j].y,x0,x1,py[i1]);
rst[j ].x = x0; rst[j ].y = py[i1];
rst[j+1].x = x1; rst[j+1].y = py[i1];
if (py[i0] < py[i3]) { rst[i].x = px[i2]; rst[i].y = py[i2]; rst[i].i = i3; }
else { rst[i].x = px[i1]; rst[i].y = py[i1]; rst[i].i = i0; }
rst[i].xi = (px[rst[i].i] - rst[i].x) / (py[rst[i].i] - py[i1]);
}
}
}
}
void polymost_fillpolygon(int32_t npoints)
{
pthtyp *pth;
float f,a=0.f;
int32_t i;
globalx1 = mulscale16(globalx1,xyaspect);
globaly2 = mulscale16(globaly2,xyaspect);
gux = ((float)asm1)*(1.f/4294967296.f);
gvx = ((float)asm2)*(1.f/4294967296.f);
guy = ((float)globalx1)*(1.f/4294967296.f);
gvy = ((float)globaly2)*(-1.f/4294967296.f);
guo = (fxdim*gux + fydim*guy)*-0.5f + fglobalposx * (1.f/4294967296.f);
gvo = (fxdim*gvx + fydim*gvy)*-0.5f - fglobalposy * (1.f/4294967296.f);
//Convert int32_t to float (in-place)
for (i=npoints-1; i>=0; i--)
{
((float *)rx1)[i] = ((float)rx1[i])*(1.0f/4096.f);
((float *)ry1)[i] = ((float)ry1[i])*(1.0f/4096.f);
}
if (gloy1 != -1) setpolymost2dview(); //disables blending, texturing, and depth testing
bglEnable(GL_ALPHA_TEST);
bglEnable(GL_TEXTURE_2D);
pth = our_texcache_fetch(0);
bglBindTexture(GL_TEXTURE_2D, pth ? pth->glpic : 0);
f = getshadefactor(globalshade);
if (((globalorientation>>7)&3) > 1)
{
bglEnable(GL_BLEND);
a = float_trans[(globalorientation>>7)&3];
bglColor4f(f, f, f, a);
}
else
{
bglDisable(GL_BLEND);
bglColor3f(f, f, f);
}
tessectrap((float *)rx1,(float *)ry1,xb1,npoints);
}
#endif
int32_t polymost_drawtilescreen(int32_t tilex, int32_t tiley, int32_t wallnum, int32_t dimen, int32_t tilezoom,
int32_t usehitile, uint8_t *loadedhitile)
{
#ifdef USE_OPENGL
float xdime, ydime, xdimepad, ydimepad, scx, scy, ratio = 1.f;
int32_t i;
pthtyp *pth;
if (getrendermode() < REND_POLYMOST || !in3dmode()) return(-1);
if (!glinfo.texnpot)
{
i = (1<<(picsiz[wallnum]&15)); if (i < tilesiz[wallnum].x) i += i; xdimepad = (float)i;
i = (1<<(picsiz[wallnum]>>4)); if (i < tilesiz[wallnum].y) i += i; ydimepad = (float)i;
}
else
{
xdimepad = (float)tilesiz[wallnum].x;
ydimepad = (float)tilesiz[wallnum].y;
}
xdime = (float)tilesiz[wallnum].x; xdimepad = xdime/xdimepad;
ydime = (float)tilesiz[wallnum].y; ydimepad = ydime/ydimepad;
if ((xdime <= dimen) && (ydime <= dimen))
{
scx = xdime;
scy = ydime;
}
else
{
scx = (float)dimen;
scy = (float)dimen;
if (xdime < ydime)
scx *= xdime/ydime;
else
scy *= ydime/xdime;
}
{
int32_t ousehightile = usehightile;
usehightile = usehitile && usehightile;
pth = texcache_fetch(wallnum, 0, 0, DAMETH_CLAMPED);
if (usehightile)
loadedhitile[wallnum>>3] |= (1<<(wallnum&7));
usehightile = ousehightile;
}
bglBindTexture(GL_TEXTURE_2D, pth ? pth->glpic : 0);
bglDisable(GL_ALPHA_TEST);
if (tilezoom)
{
if (scx > scy) ratio = dimen/scx;
else ratio = dimen/scy;
}
if (!pth || (pth->flags & PTH_HASALPHA))
{
bglDisable(GL_TEXTURE_2D);
bglBegin(GL_TRIANGLE_FAN);
if (gammabrightness)
bglColor3f((float)curpalette[255].r*(1.0f/255.f),
(float)curpalette[255].g*(1.0f/255.f),
(float)curpalette[255].b*(1.0f/255.f));
else
bglColor3f((float)britable[curbrightness][ curpalette[255].r ] * (1.0f/255.f),
(float)britable[curbrightness][ curpalette[255].g ] * (1.0f/255.f),
(float)britable[curbrightness][ curpalette[255].b ] * (1.0f/255.f));
bglVertex2f((float)tilex ,(float)tiley);
bglVertex2f((float)tilex+(scx*ratio),(float)tiley);
bglVertex2f((float)tilex+(scx*ratio),(float)tiley+(scy*ratio));
bglVertex2f((float)tilex ,(float)tiley+(scy*ratio));
bglEnd();
}
bglColor3f(1,1,1);
bglEnable(GL_TEXTURE_2D);
bglEnable(GL_BLEND);
bglBegin(GL_TRIANGLE_FAN);
bglTexCoord2f(0, 0); bglVertex2f((float)tilex ,(float)tiley);
bglTexCoord2f(xdimepad, 0); bglVertex2f((float)tilex+(scx*ratio),(float)tiley);
bglTexCoord2f(xdimepad,ydimepad); bglVertex2f((float)tilex+(scx*ratio),(float)tiley+(scy*ratio));
bglTexCoord2f(0, ydimepad); bglVertex2f((float)tilex ,(float)tiley+(scy*ratio));
bglEnd();
return(0);
#else
return -1;
#endif
}
static int32_t gen_font_glyph_tex(void)
{
// construct a 256x128 8-bit alpha-only texture for the font glyph matrix
char *tbuf, *cptr, *tptr;
int32_t h,i,j;
bglGenTextures(1,&polymosttext);
if (!polymosttext) return -1;
tbuf = (char *)Xmalloc(256*128);
Bmemset(tbuf, 0, 256*128);
cptr = (char *)textfont;
for (h=0; h<256; h++)
{
tptr = tbuf + (h%32)*8 + (h/32)*256*8;
for (i=0; i<8; i++)
{
for (j=0; j<8; j++)
{
if (cptr[h*8+i] & pow2char[7-j]) tptr[j] = 255;
}
tptr += 256;
}
}
cptr = (char *)smalltextfont;
for (h=0; h<256; h++)
{
tptr = tbuf + 256*64 + (h%32)*8 + (h/32)*256*8;
for (i=1; i<7; i++)
{
for (j=2; j<6; j++)
{
if (cptr[h*8+i] & pow2char[7-j]) tptr[j-2] = 255;
}
tptr += 256;
}
}
bglBindTexture(GL_TEXTURE_2D, polymosttext);
bglTexImage2D(GL_TEXTURE_2D,0,GL_ALPHA,256,128,0,GL_ALPHA,GL_UNSIGNED_BYTE,(GLvoid *)tbuf);
bglTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
bglTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);
Bfree(tbuf);
return 0;
}
int32_t polymost_printext256(int32_t xpos, int32_t ypos, int16_t col, int16_t backcol, const char *name, char fontsize)
{
#ifndef USE_OPENGL
return -1;
#else
GLfloat tx, ty, txc, tyc;
int32_t c;
palette_t p,b;
int32_t arbackcol = (unsigned)backcol < 256 ? backcol : 0;
// FIXME?
if (col < 0)
col = 0;
bricolor(&p, col);
bricolor(&b, arbackcol);
if (getrendermode() < REND_POLYMOST || !in3dmode()) return(-1);
if (!polymosttext)
{
if (gen_font_glyph_tex() < 0)
return -1;
}
else
{
bglBindTexture(GL_TEXTURE_2D, polymosttext);
}
setpolymost2dview(); // disables blending, texturing, and depth testing
bglDisable(GL_ALPHA_TEST);
bglDepthMask(GL_FALSE); // disable writing to the z-buffer
bglPushAttrib(GL_POLYGON_BIT|GL_ENABLE_BIT);
// XXX: Don't fogify the OSD text in Mapster32 with r_usenewshading >= 2.
bglDisable(GL_FOG);
// We want to have readable text in wireframe mode, too:
bglPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
if (backcol >= 0)
{
bglColor4ub(b.r,b.g,b.b,255);
c = Bstrlen(name);
bglBegin(GL_QUADS);
bglVertex2i(xpos,ypos);
bglVertex2i(xpos,ypos+(fontsize?6:8));
bglVertex2i(xpos+(c<<(3-fontsize)),ypos+(fontsize?6:8));
bglVertex2i(xpos+(c<<(3-fontsize)),ypos);
bglEnd();
}
bglEnable(GL_TEXTURE_2D);
bglEnable(GL_BLEND);
bglColor4ub(p.r,p.g,p.b,255);
txc = fontsize ? (4.f/256.f) : (8.f/256.f);
tyc = fontsize ? (6.f/128.f) : (8.f/128.f);
bglBegin(GL_QUADS);
for (c=0; name[c]; c++)
{
if (name[c] == '^' && isdigit(name[c+1]))
{
char smallbuf[8];
int32_t bi=0;
while (isdigit(name[c+1]) && bi<3)
{
smallbuf[bi++]=name[c+1];
c++;
}
smallbuf[bi++]=0;
if (col)col = Batol(smallbuf);
if ((unsigned)col >= 256)
col = 0;
bricolor(&p, col);
bglColor4ub(p.r,p.g,p.b,255);
continue;
}
tx = (float)(name[c]%32) * (1.0f/32.f);
ty = (float)((name[c]/32) + (fontsize*8))*(1.0f/16.f);
bglTexCoord2f(tx,ty); bglVertex2i(xpos,ypos);
bglTexCoord2f(tx+txc,ty); bglVertex2i(xpos+(8>>fontsize),ypos);
bglTexCoord2f(tx+txc,ty+tyc); bglVertex2i(xpos+(8>>fontsize),ypos+(fontsize?6:8));
bglTexCoord2f(tx,ty+tyc); bglVertex2i(xpos,ypos+(fontsize?6:8));
xpos += (8>>fontsize);
}
bglEnd();
bglDepthMask(GL_TRUE); // re-enable writing to the z-buffer
bglPopAttrib();
return 0;
#endif
}
// Console commands by JBF
#ifdef USE_OPENGL
static int32_t gltexturemode(const osdfuncparm_t *parm)
{
int32_t m;
const char *p;
if (parm->numparms != 1)
{
OSD_Printf("Current texturing mode is %s\n", glfiltermodes[gltexfiltermode].name);
OSD_Printf(" Vaild modes are:\n");
for (m = 0; m < NUMGLFILTERMODES; m++)
OSD_Printf(" %d - %s\n", m, glfiltermodes[m].name);
return OSDCMD_OK;
}
m = Bstrtoul(parm->parms[0], (char **)&p, 10);
if (p == parm->parms[0])
{
// string
for (m = 0; m < NUMGLFILTERMODES; m++)
{
if (!Bstrcasecmp(parm->parms[0], glfiltermodes[m].name))
break;
}
if (m == NUMGLFILTERMODES)
m = gltexfiltermode; // no change
}
else
{
m = clamp(m, 0, NUMGLFILTERMODES-1);
}
gltexfiltermode = m;
gltexapplyprops();
OSD_Printf("Texture filtering mode changed to %s\n", glfiltermodes[gltexfiltermode].name);
return OSDCMD_OK;
}
#endif
static int32_t osdcmd_cvar_set_polymost(const osdfuncparm_t *parm)
{
int32_t r = osdcmd_cvar_set(parm);
if (xdim == 0 || ydim == 0 || bpp == 0) // video not set up yet
{
if (r == OSDCMD_OK)
{
#ifdef POLYMER
if (!Bstrcasecmp(parm->name, "r_pr_maxlightpasses"))
{
pr_maxlightpasses = r_pr_maxlightpasses;
return r;
}
#endif
}
return r;
}
#ifdef USE_OPENGL
if (r == OSDCMD_OK)
{
if (!Bstrcasecmp(parm->name, "r_swapinterval"))
{
setvsync(vsync);
return r;
}
else if (!Bstrcasecmp(parm->name, "r_downsize"))
{
if (r_downsizevar == -1)
r_downsizevar = r_downsize;
if (in3dmode() && r_downsize != r_downsizevar)
{
texcache_invalidate();
resetvideomode();
if (setgamemode(fullscreen,xdim,ydim,bpp))
OSD_Printf("restartvid: Reset failed...\n");
}
r_downsizevar = r_downsize;
return r;
}
else if (!Bstrcasecmp(parm->name, "r_textureanisotropy"))
{
gltexapplyprops();
return r;
}
else if (!Bstrcasecmp(parm->name, "r_texturemode"))
{
gltexturemode(parm);
return r;
}
#ifdef POLYMER
else if (!Bstrcasecmp(parm->name, "r_pr_maxlightpasses"))
{
if (pr_maxlightpasses != r_pr_maxlightpasses)
{
polymer_invalidatelights();
pr_maxlightpasses = r_pr_maxlightpasses;
}
return r;
}
#endif
}
#endif
return r;
}
void polymost_initosdfuncs(void)
{
uint32_t i;
cvar_t cvars_polymost[] =
{
#ifdef USE_OPENGL
{ "r_animsmoothing","enable/disable model animation smoothing",(void *) &r_animsmoothing, CVAR_BOOL, 0, 1 },
{ "r_detailmapping","enable/disable detail mapping",(void *) &r_detailmapping, CVAR_BOOL, 0, 1 },
{ "r_downsize","controls downsizing factor (quality) for hires textures",(void *) &r_downsize, CVAR_INT|CVAR_FUNCPTR, 0, 5 },
{ "r_fullbrights","enable/disable fullbright textures",(void *) &r_fullbrights, CVAR_BOOL, 0, 1 },
{ "r_glowmapping","enable/disable glow mapping",(void *) &r_glowmapping, CVAR_BOOL, 0, 1 },
/*
{ "r_multisample","sets the number of samples used for antialiasing (0 = off)",(void *)&glmultisample, CVAR_BOOL, 0, 1 },
{ "r_nvmultisamplehint","enable/disable Nvidia multisampling hinting",(void *)&glnvmultisamplehint, CVAR_BOOL, 0, 1 },
*/
{
"r_parallaxskyclamping","enable/disable parallaxed floor/ceiling sky texture clamping",
(void *) &r_parallaxskyclamping, CVAR_BOOL, 0, 1
},
{
"r_parallaxskypanning","enable/disable parallaxed floor/ceiling panning when drawing a parallaxed sky",
(void *) &r_parallaxskypanning, CVAR_BOOL, 0, 1
},
{ "r_polygonmode","debugging feature",(void *) &glpolygonmode, CVAR_INT | CVAR_NOSAVE, 0, 3 },
#ifdef REDBLUEMODE
{ "r_redbluemode","enable/disable experimental OpenGL red-blue glasses mode",(void *) &glredbluemode, CVAR_BOOL, 0, 1 },
#endif
{ "r_shadescale","multiplier for shading",(void *) &shadescale, CVAR_FLOAT, 0, 10 },
{ "r_shadescale_unbounded","enable/disable allowance of complete blackness",(void *) &shadescale_unbounded, CVAR_BOOL, 0, 1 },
{ "r_swapinterval","sets the GL swap interval (VSync)",(void *) &vsync, CVAR_INT|CVAR_FUNCPTR, -1, 1 },
{ "r_texcache","enable/disable OpenGL compressed texture cache",(void *) &glusetexcache, CVAR_INT, 0, 2 },
{ "r_memcache","enable/disable texture cache memory cache",(void *) &glusememcache, CVAR_BOOL, 0, 1 },
{
"r_npotwallmode", "enable/disable emulation of walls with non-power-of-two height textures (Polymost, r_hightile 0)",
(void *) &r_npotwallmode, CVAR_BOOL, 0, 1
},
{ "r_texcompr","enable/disable OpenGL texture compression",(void *) &glusetexcompr, CVAR_BOOL, 0, 1 },
{ "r_textureanisotropy", "changes the OpenGL texture anisotropy setting", (void *) &glanisotropy, CVAR_INT|CVAR_FUNCPTR, 0, 16 },
{ "r_texturemaxsize","changes the maximum OpenGL texture size limit",(void *) &gltexmaxsize, CVAR_INT | CVAR_NOSAVE, 0, 4096 },
{ "r_texturemiplevel","changes the highest OpenGL mipmap level used",(void *) &gltexmiplevel, CVAR_INT, 0, 6 },
{ "r_texturemode", "changes the texture filtering settings", (void *) &gltexfiltermode, CVAR_INT|CVAR_FUNCPTR, 0, 5 },
{ "r_usenewshading",
"visibility/fog code: 0: orig. Polymost 1: 07/2011 2: linear 12/2012 3: no neg. start 03/2014",
(void *) &r_usenewshading, CVAR_INT, 0, 3
},
{ "r_usetileshades", "enable/disable Polymost tile shade textures", (void *) &r_usetileshades, CVAR_INT | CVAR_INVALIDATEART, 0, 2 },
{ "r_vbocount","sets the number of Vertex Buffer Objects to use when drawing models",(void *) &r_vbocount, CVAR_INT, 1, 256 },
{ "r_vbos"," enable/disable using Vertex Buffer Objects when drawing models",(void *) &r_vbos, CVAR_BOOL, 0, 1 },
{ "r_vertexarrays","enable/disable using vertex arrays when drawing models",(void *) &r_vertexarrays, CVAR_BOOL, 0, 1 },
{ "r_projectionhack", "enable/disable projection hack", (void *) &glprojectionhacks, CVAR_INT, 0, 2 },
#ifdef POLYMER
// polymer cvars
{ "r_pr_lighting", "enable/disable dynamic lights - restarts renderer", (void *) &pr_lighting, CVAR_BOOL | CVAR_RESTARTVID, 0, 1 },
{ "r_pr_normalmapping", "enable/disable virtual displacement mapping", (void *) &pr_normalmapping, CVAR_BOOL, 0, 1 },
{ "r_pr_specularmapping", "enable/disable specular mapping", (void *) &pr_specularmapping, CVAR_BOOL, 0, 1 },
{ "r_pr_shadows", "enable/disable dynamic shadows", (void *) &pr_shadows, CVAR_BOOL, 0, 1 },
{ "r_pr_shadowcount", "maximal amount of shadow emitting lights on screen - you need to restart the renderer for it to take effect", (void *) &pr_shadowcount, CVAR_INT, 0, 64 },
{ "r_pr_shadowdetail", "sets the shadow map resolution - you need to restart the renderer for it to take effect", (void *) &pr_shadowdetail, CVAR_INT, 0, 5 },
{ "r_pr_shadowfiltering", "enable/disable shadow edges filtering - you need to restart the renderer for it to take effect", (void *) &pr_shadowfiltering, CVAR_BOOL, 0, 1 },
{ "r_pr_maxlightpasses", "the maximal amount of lights a single object can by affected by", (void *) &r_pr_maxlightpasses, CVAR_INT|CVAR_FUNCPTR, 0, PR_MAXLIGHTS },
{ "r_pr_maxlightpriority", "lowering that value removes less meaningful lights from the scene", (void *) &pr_maxlightpriority, CVAR_INT, 0, PR_MAXLIGHTPRIORITY },
{ "r_pr_fov", "sets the field of vision in build angle", (void *) &pr_fov, CVAR_INT, 0, 1023},
{ "r_pr_customaspect", "if non-zero, forces the 3D view aspect ratio", (void *) &pr_customaspect, CVAR_DOUBLE, 0, 3 },
{ "r_pr_billboardingmode", "face sprite display method. 0: classic mode; 1: polymost mode", (void *) &pr_billboardingmode, CVAR_INT, 0, 1 },
{ "r_pr_verbosity", "verbosity level of the polymer renderer", (void *) &pr_verbosity, CVAR_INT, 0, 3 },
{ "r_pr_wireframe", "toggles wireframe mode", (void *) &pr_wireframe, CVAR_INT | CVAR_NOSAVE, 0, 1 },
{ "r_pr_vbos", "contols Vertex Buffer Object usage. 0: no VBOs. 1: VBOs for map data. 2: VBOs for model data.", (void *) &pr_vbos, CVAR_INT | CVAR_RESTARTVID, 0, 2 },
{ "r_pr_gpusmoothing", "toggles model animation interpolation", (void *) &pr_gpusmoothing, CVAR_INT, 0, 1 },
{ "r_pr_overrideparallax", "overrides parallax mapping scale and bias values with values from the pr_parallaxscale and pr_parallaxbias cvars; use it to fine-tune DEF tokens", (void *) &pr_overrideparallax, CVAR_BOOL | CVAR_NOSAVE, 0, 1 },
{ "r_pr_parallaxscale", "overriden parallax mapping offset scale", (void *) &pr_parallaxscale, CVAR_FLOAT | CVAR_NOSAVE, -10, 10 },
{ "r_pr_parallaxbias", "overriden parallax mapping offset bias", (void *) &pr_parallaxbias, CVAR_FLOAT | CVAR_NOSAVE, -10, 10 },
{ "r_pr_overridespecular", "overrides specular material power and factor values with values from the pr_specularpower and pr_specularfactor cvars; use it to fine-tune DEF tokens", (void *) &pr_overridespecular, CVAR_BOOL | CVAR_NOSAVE, 0, 1 },
{ "r_pr_specularpower", "overriden specular material power", (void *) &pr_specularpower, CVAR_FLOAT | CVAR_NOSAVE, -10, 1000 },
{ "r_pr_specularfactor", "overriden specular material factor", (void *) &pr_specularfactor, CVAR_FLOAT | CVAR_NOSAVE, -10, 1000 },
{ "r_pr_highpalookups", "enable/disable highpalookups", (void *) &pr_highpalookups, CVAR_BOOL, 0, 1 },
{ "r_pr_artmapping", "enable/disable art mapping", (void *) &pr_artmapping, CVAR_BOOL | CVAR_INVALIDATEART, 0, 1 },
{ "r_pr_overridehud", "overrides hud model parameters with values from the pr_hud* cvars; use it to fine-tune DEF tokens", (void *) &pr_overridehud, CVAR_BOOL | CVAR_NOSAVE, 0, 1 },
{ "r_pr_hudxadd", "overriden HUD xadd; see r_pr_overridehud", (void *) &pr_hudxadd, CVAR_FLOAT | CVAR_NOSAVE, -100, 100 },
{ "r_pr_hudyadd", "overriden HUD yadd; see r_pr_overridehud", (void *) &pr_hudyadd, CVAR_FLOAT | CVAR_NOSAVE, -100, 100 },
{ "r_pr_hudzadd", "overriden HUD zadd; see r_pr_overridehud", (void *) &pr_hudzadd, CVAR_FLOAT | CVAR_NOSAVE, -100, 100 },
{ "r_pr_hudangadd", "overriden HUD angadd; see r_pr_overridehud", (void *) &pr_hudangadd, CVAR_INT | CVAR_NOSAVE, -1024, 1024 },
{ "r_pr_hudfov", "overriden HUD fov; see r_pr_overridehud", (void *) &pr_hudfov, CVAR_INT | CVAR_NOSAVE, 0, 1023 },
{ "r_pr_overridemodelscale", "overrides model scale if non-zero; use it to fine-tune DEF tokens", (void *) &pr_overridemodelscale, CVAR_FLOAT | CVAR_NOSAVE, 0, 500 },
{ "r_pr_ati_fboworkaround", "enable this to workaround an ATI driver bug that causes sprite shadows to be square - you need to restart the renderer for it to take effect", (void *) &pr_ati_fboworkaround, CVAR_BOOL | CVAR_NOSAVE, 0, 1 },
{ "r_pr_ati_nodepthoffset", "enable this to workaround an ATI driver bug that causes sprite drawing to freeze the game on Radeon X1x00 hardware - you need to restart the renderer for it to take effect", (void *) &pr_ati_nodepthoffset, CVAR_BOOL | CVAR_NOSAVE, 0, 1 },
#endif
#ifdef __ANDROID__
{ "r_models","enable/disable model rendering",(void *) &usemodels, CVAR_BOOL | CVAR_NOSAVE, 0, 1 },
#else
{ "r_models","enable/disable model rendering",(void *) &usemodels, CVAR_BOOL, 0, 1 },
#endif
{ "r_hightile","enable/disable hightile texture rendering",(void *) &usehightile, CVAR_BOOL, 0, 1 },
{ "r_preview_mouseaim", "toggles mouse aiming preview, use this to calibrate yxaspect in Polymost Mapster32", (void *) &preview_mouseaim, CVAR_BOOL, 0, 1 },
#endif
};
for (i=0; i<ARRAY_SIZE(cvars_polymost); i++)
{
// can't do this: editstatus is set after this function
// if (editstatus==0 && !Bstrcmp(cvars_polymost[i].name, "r_preview_mouseaim"))
// continue;
if (OSD_RegisterCvar(&cvars_polymost[i]))
continue;
OSD_RegisterFunction(cvars_polymost[i].name, cvars_polymost[i].desc,
cvars_polymost[i].type & CVAR_FUNCPTR ? osdcmd_cvar_set_polymost : osdcmd_cvar_set);
}
}
void polymost_precache(int32_t dapicnum, int32_t dapalnum, int32_t datype)
{
#ifdef USE_OPENGL
// dapicnum and dapalnum are like you'd expect
// datype is 0 for a wall/floor/ceiling and 1 for a sprite
// basically this just means walls are repeating
// while sprites are clamped
int32_t mid;
if (getrendermode() < REND_POLYMOST) return;
if ((palookup[dapalnum] == NULL) && (dapalnum < (MAXPALOOKUPS - RESERVEDPALS))) return;//dapalnum = 0;
//OSD_Printf("precached %d %d type %d\n", dapicnum, dapalnum, datype);
hicprecaching = 1;
texcache_fetch(dapicnum, dapalnum, 0, (datype & 1)*DAMETH_CLAMPED);
hicprecaching = 0;
if (datype == 0 || !usemodels) return;
mid = md_tilehasmodel(dapicnum,dapalnum);
if (mid < 0 || models[mid]->mdnum < 2) return;
{
int32_t i,j=0;
if (models[mid]->mdnum == 3)
j = ((md3model_t *)models[mid])->head.numsurfs;
for (i=0; i<=j; i++)
mdloadskin((md2model_t *)models[mid], 0, dapalnum, i);
}
#endif
}
#else /* if !defined USE_OPENGL */
#include "compat.h"
int32_t polymost_drawtilescreen(int32_t tilex, int32_t tiley, int32_t wallnum, int32_t dimen,
int32_t usehitile, uint8_t *loadedhitile)
{
UNREFERENCED_PARAMETER(tilex);
UNREFERENCED_PARAMETER(tiley);
UNREFERENCED_PARAMETER(wallnum);
UNREFERENCED_PARAMETER(dimen);
UNREFERENCED_PARAMETER(usehitile);
UNREFERENCED_PARAMETER(loadedhitile);
return -1;
}
#endif
// vim:ts=4:sw=4:
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