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raze-gles/source/build/src/mdsprite.cpp
Christoph Oelckers 847fa48724 - cleaned out the remaining parts of baselayer.h 
In particular this means to remove the option to disable widescreen aspect ratios. The way this was handled makes no sense with the current render backend.

The aspect ratio code will have to be redone entirely to properly obey the backend's settings.
2020-08-28 09:06:49 +02:00

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//------------------------------------- MD2/MD3 LIBRARY BEGINS -------------------------------------
#ifdef USE_OPENGL
#include "compat.h"
#include "build.h"
#include "pragmas.h"
#include "engine_priv.h"
#include "polymost.h"
#include "mdsprite.h"
#include "common.h"
#include "palette.h"
#include "textures.h"
#include "bitmap.h"
#include "v_video.h"
#include "flatvertices.h"
#include "texturemanager.h"
#include "hw_renderstate.h"
#include "printf.h"
#include "../../glbackend/glbackend.h"
static int32_t curextra=MAXTILES;
#define MIN_CACHETIME_PRINT 10
static int32_t addtileP(int32_t model,int32_t tile,int32_t pallet)
{
// tile >= 0 && tile < MAXTILES
UNREFERENCED_PARAMETER(model);
if (curextra==MAXTILES+EXTRATILES-1)
{
Printf("warning: max EXTRATILES reached\n");
return curextra;
}
if (tile2model[tile].modelid==-1)
{
tile2model[tile].pal=pallet;
return tile;
}
if (tile2model[tile].pal==pallet)
return tile;
while (tile2model[tile].nexttile!=-1)
{
tile=tile2model[tile].nexttile;
if (tile2model[tile].pal==pallet)
return tile;
}
tile2model[tile].nexttile=curextra;
tile2model[curextra].pal=pallet;
return curextra++;
}
int32_t Ptile2tile(int32_t tile,int32_t palette)
{
int t = tile;
while ((tile = tile2model[tile].nexttile) != -1)
if (tile2model[tile].pal == palette)
{
t = tile;
break;
}
return t;
}
#define MODELALLOCGROUP 256
static int32_t nummodelsalloced = 0;
static int32_t maxmodelverts = 0, allocmodelverts = 0;
static int32_t maxmodeltris = 0, allocmodeltris = 0;
static vec3f_t *vertlist = NULL; //temp array to store interpolated vertices for drawing
#ifdef USE_GLEXT
static int32_t allocvbos = 0, curvbo = 0;
static GLuint *vertvbos = NULL;
static GLuint *indexvbos = NULL;
#endif
#ifdef POLYMER
static int32_t *tribuf = NULL;
static int32_t tribufverts = 0;
#endif
static mdmodel_t *mdload(const char *);
static void mdfree(mdmodel_t *);
static int32_t globalnoeffect=0;
void freeallmodels()
{
int32_t i;
if (models)
{
for (i=0; i<nextmodelid; i++) mdfree(models[i]);
DO_FREE_AND_NULL(models);
nummodelsalloced = 0;
nextmodelid = 0;
}
Bmemset(tile2model,-1,sizeof(tile2model));
for (i=0; i<MAXTILES; i++)
Bmemset(tile2model[i].hudmem, 0, sizeof(tile2model[i].hudmem));
curextra=MAXTILES;
if (vertlist)
{
DO_FREE_AND_NULL(vertlist);
allocmodelverts = maxmodelverts = 0;
allocmodeltris = maxmodeltris = 0;
}
#ifdef POLYMER
DO_FREE_AND_NULL(tribuf);
#endif
}
void mdinit()
{
freeallmodels();
mdinited = 1;
}
int32_t md_loadmodel(const char *fn)
{
mdmodel_t *vm, **ml;
if (!mdinited) mdinit();
if (nextmodelid >= nummodelsalloced)
{
ml = (mdmodel_t **)Xrealloc(models,(nummodelsalloced+MODELALLOCGROUP)*sizeof(void *));
models = ml; nummodelsalloced += MODELALLOCGROUP;
}
vm = mdload(fn); if (!vm) return -1;
models[nextmodelid++] = vm;
return nextmodelid-1;
}
int32_t md_setmisc(int32_t modelid, float scale, int32_t shadeoff, float zadd, float yoffset, int32_t flags)
{
mdmodel_t *m;
if (!mdinited) mdinit();
if ((uint32_t)modelid >= (uint32_t)nextmodelid) return -1;
m = models[modelid];
m->bscale = scale;
m->shadeoff = shadeoff;
m->zadd = zadd;
m->yoffset = yoffset;
m->flags = flags;
return 0;
}
static int32_t framename2index(mdmodel_t *vm, const char *nam)
{
int32_t i = 0;
switch (vm->mdnum)
{
case 2:
{
md2model_t *m = (md2model_t *)vm;
md2frame_t *fr;
for (i=0; i<m->numframes; i++)
{
fr = (md2frame_t *)&m->frames[i*m->framebytes];
if (!Bstrcmp(fr->name, nam)) break;
}
}
break;
case 3:
{
md3model_t *m = (md3model_t *)vm;
for (i=0; i<m->numframes; i++)
if (!Bstrcmp(m->head.frames[i].nam,nam)) break;
}
break;
}
return i;
}
int32_t md_defineframe(int32_t modelid, const char *framename, int32_t tilenume, int32_t skinnum, float smoothduration, int32_t pal)
{
md2model_t *m;
int32_t i;
if (!mdinited) mdinit();
if ((uint32_t)modelid >= (uint32_t)nextmodelid) return -1;
if ((uint32_t)tilenume >= (uint32_t)MAXTILES) return -2;
if (!framename) return -3;
tilenume=addtileP(modelid,tilenume,pal);
m = (md2model_t *)models[modelid];
if (m->mdnum == 1)
{
tile2model[tilenume].modelid = modelid;
tile2model[tilenume].framenum = tile2model[tilenume].skinnum = 0;
return 0;
}
i = framename2index((mdmodel_t *)m,framename);
if (i == m->numframes) return -3; // frame name invalid
tile2model[tilenume].modelid = modelid;
tile2model[tilenume].framenum = i;
tile2model[tilenume].skinnum = skinnum;
tile2model[tilenume].smoothduration = Blrintf((float)UINT16_MAX * smoothduration);
return i;
}
int32_t md_defineanimation(int32_t modelid, const char *framestart, const char *frameend, int32_t fpssc, int32_t flags)
{
md2model_t *m;
mdanim_t ma, *map;
int32_t i;
if (!mdinited) mdinit();
if ((uint32_t)modelid >= (uint32_t)nextmodelid) return -1;
Bmemset(&ma, 0, sizeof(ma));
m = (md2model_t *)models[modelid];
if (m->mdnum < 2) return 0;
//find index of start frame
i = framename2index((mdmodel_t *)m,framestart);
if (i == m->numframes) return -2;
ma.startframe = i;
//find index of finish frame which must trail start frame
i = framename2index((mdmodel_t *)m,frameend);
if (i == m->numframes) return -3;
ma.endframe = i;
ma.fpssc = fpssc;
ma.flags = flags;
map = (mdanim_t *)Xmalloc(sizeof(mdanim_t));
Bmemcpy(map, &ma, sizeof(ma));
map->next = m->animations;
m->animations = map;
return 0;
}
#if 0
// FIXME: CURRENTLY DISABLED: interpolation may access frames we consider 'unused'?
int32_t md_thinoutmodel(int32_t modelid, uint8_t *usedframebitmap)
{
md3model_t *m;
md3surf_t *s;
mdanim_t *anm;
int32_t i, surfi, sub, usedframes;
static int16_t otonframe[1024];
if ((uint32_t)modelid >= (uint32_t)nextmodelid) return -1;
m = (md3model_t *)models[modelid];
if (m->mdnum != 3) return -2;
for (anm=m->animations; anm; anm=anm->next)
{
if (anm->endframe <= anm->startframe)
{
// Printf("backward anim %d-%d\n", anm->startframe, anm->endframe);
return -3;
}
for (i=anm->startframe; i<anm->endframe; i++)
usedframebitmap[i>>3] |= pow2char[i&7];
}
sub = 0;
for (i=0; i<m->numframes; i++)
{
if (!(usedframebitmap[i>>3]&pow2char[i&7]))
{
sub++;
otonframe[i] = -1;
continue;
}
otonframe[i] = i-sub;
}
usedframes = m->numframes - sub;
if (usedframes==0 || usedframes==m->numframes)
return usedframes;
//// THIN OUT! ////
for (i=0; i<m->numframes; i++)
{
if (otonframe[i]>=0 && otonframe[i] != i)
{
if (m->muladdframes)
Bmemcpy(&m->muladdframes[2*otonframe[i]], &m->muladdframes[2*i], 2*sizeof(vec3f_t));
Bmemcpy(&m->head.frames[otonframe[i]], &m->head.frames[i], sizeof(md3frame_t));
}
}
for (surfi=0; surfi < m->head.numsurfs; surfi++)
{
s = &m->head.surfs[surfi];
for (i=0; i<m->numframes; i++)
if (otonframe[i]>=0 && otonframe[i] != i)
Bmemcpy(&s->xyzn[otonframe[i]*s->numverts], &s->xyzn[i*s->numverts], s->numverts*sizeof(md3xyzn_t));
}
////// tweak frame indices in various places
for (anm=m->animations; anm; anm=anm->next)
{
if (otonframe[anm->startframe]==-1 || otonframe[anm->endframe-1]==-1)
Printf("md %d WTF: anm %d %d\n", modelid, anm->startframe, anm->endframe);
anm->startframe = otonframe[anm->startframe];
anm->endframe = otonframe[anm->endframe-1];
}
for (i=0; i<MAXTILES+EXTRATILES; i++)
if (tile2model[i].modelid == modelid)
{
if (otonframe[tile2model[i].framenum]==-1)
Printf("md %d WTF: tile %d, fr %d\n", modelid, i, tile2model[i].framenum);
tile2model[i].framenum = otonframe[tile2model[i].framenum];
}
////// realloc & change "numframes" everywhere
if (m->muladdframes)
m->muladdframes = Xrealloc(m->muladdframes, 2*sizeof(vec3f_t)*usedframes);
m->head.frames = Xrealloc(m->head.frames, sizeof(md3frame_t)*usedframes);
for (surfi=0; surfi < m->head.numsurfs; surfi++)
{
m->head.surfs[surfi].numframes = usedframes;
// CAN'T do that because xyzn is offset from a larger block when loaded from md3:
// m->head.surfs[surfi].xyzn = Xrealloc(m->head.surfs[surfi].xyzn, s->numverts*usedframes*sizeof(md3xyzn_t));
}
m->head.numframes = usedframes;
m->numframes = usedframes;
////////////
return usedframes;
}
#endif
int32_t md_defineskin(int32_t modelid, const char *skinfn, int32_t palnum, int32_t skinnum, int32_t surfnum, float param, float specpower, float specfactor, int32_t flags)
{
mdskinmap_t *sk, *skl;
md2model_t *m;
if (!mdinited) mdinit();
if ((uint32_t)modelid >= (uint32_t)nextmodelid) return -1;
if (!skinfn) return -2;
if ((unsigned)palnum >= (unsigned)MAXPALOOKUPS) return -3;
m = (md2model_t *)models[modelid];
if (m->mdnum < 2) return 0;
if (m->mdnum == 2) surfnum = 0;
skl = NULL;
for (sk = m->skinmap; sk; skl = sk, sk = sk->next)
if (sk->palette == (uint8_t)palnum && skinnum == sk->skinnum && surfnum == sk->surfnum)
break;
if (!sk)
{
sk = (mdskinmap_t *)Xcalloc(1,sizeof(mdskinmap_t));
if (!skl) m->skinmap = sk;
else skl->next = sk;
}
sk->palette = (uint8_t)palnum;
sk->flags = (uint8_t)flags;
sk->skinnum = skinnum;
sk->surfnum = surfnum;
sk->param = param;
sk->specpower = specpower;
sk->specfactor = specfactor;
sk->texture = TexMan.CheckForTexture(skinfn, ETextureType::Any);
if (!sk->texture.isValid())
{
Printf("Unable to load %s as model skin\n", skinfn);
}
return 0;
}
int32_t md_definehud(int32_t modelid, int32_t tilex, vec3f_t add, int32_t angadd, int32_t flags, int32_t fov)
{
if (!mdinited) mdinit();
if ((uint32_t)modelid >= (uint32_t)nextmodelid) return -1;
if ((uint32_t)tilex >= (uint32_t)MAXTILES) return -2;
tile2model[tilex].hudmem[(flags>>2)&1] = (hudtyp *)Xmalloc(sizeof(hudtyp));
hudtyp * const hud = tile2model[tilex].hudmem[(flags>>2)&1];
hud->add = add;
hud->angadd = ((int16_t)angadd)|2048;
hud->flags = (int16_t)flags;
hud->fov = (int16_t)fov;
return 0;
}
int32_t md_undefinetile(int32_t tile)
{
if (!mdinited) return 0;
if ((unsigned)tile >= (unsigned)MAXTILES) return -1;
tile2model[tile].modelid = -1;
tile2model[tile].nexttile = -1;
DO_FREE_AND_NULL(tile2model[tile].hudmem[0]);
DO_FREE_AND_NULL(tile2model[tile].hudmem[1]);
return 0;
}
/* this function is problematic, it leaves NULL holes in model[]
* (which runs from 0 to nextmodelid-1) */
int32_t md_undefinemodel(int32_t modelid)
{
int32_t i;
if (!mdinited) return 0;
if ((uint32_t)modelid >= (uint32_t)nextmodelid) return -1;
for (i=MAXTILES+EXTRATILES-1; i>=0; i--)
if (tile2model[i].modelid == modelid)
{
tile2model[i].modelid = -1;
DO_FREE_AND_NULL(tile2model[i].hudmem[0]);
DO_FREE_AND_NULL(tile2model[i].hudmem[1]);
}
if (models)
{
mdfree(models[modelid]);
models[modelid] = NULL;
}
return 0;
}
//Note: even though it says md2model, it works for both md2model&md3model
FGameTexture *mdloadskin(idmodel_t *m, int32_t number, int32_t pal, int32_t surf, bool *exact)
{
int32_t i;
mdskinmap_t *sk, *skzero = NULL;
int32_t doalloc = 1;
if (m->mdnum == 2)
surf = 0;
if ((unsigned)pal >= (unsigned)MAXPALOOKUPS)
return 0;
i = -1;
for (sk = m->skinmap; sk; sk = sk->next)
{
if (sk->palette == pal && sk->skinnum == number && sk->surfnum == surf)
{
if (exact) *exact = true;
//Printf("Using exact match skin (pal=%d,skinnum=%d,surfnum=%d) %s\n",pal,number,surf,skinfile);
return TexMan.GetGameTexture(sk->texture);
}
//If no match, give highest priority to number, then pal.. (Parkar's request, 02/27/2005)
else if ((sk->palette == 0) && (sk->skinnum == number) && (sk->surfnum == surf) && (i < 5)) { i = 5; skzero = sk; }
else if ((sk->palette == pal) && (sk->skinnum == 0) && (sk->surfnum == surf) && (i < 4)) { i = 4; skzero = sk; }
else if ((sk->palette == 0) && (sk->skinnum == 0) && (sk->surfnum == surf) && (i < 3)) { i = 3; skzero = sk; }
else if ((sk->palette == 0) && (sk->skinnum == number) && (i < 2)) { i = 2; skzero = sk; }
else if ((sk->palette == pal) && (sk->skinnum == 0) && (i < 1)) { i = 1; skzero = sk; }
else if ((sk->palette == 0) && (sk->skinnum == 0) && (i < 0)) { i = 0; skzero = sk; }
}
// Special palettes do not get replacements
if (pal >= (MAXPALOOKUPS - RESERVEDPALS))
return 0;
if (skzero)
{
//Printf("Using def skin 0,0 as fallback, pal=%d\n", pal);
if (exact) *exact = false;
return TexMan.GetGameTexture(skzero->texture);
}
else
return nullptr;
}
//Note: even though it says md2model, it works for both md2model&md3model
static void updateanimation(md2model_t *m, tspriteptr_t tspr, uint8_t lpal)
{
if (m->numframes < 2)
{
m->interpol = 0;
return;
}
int32_t const tile = Ptile2tile(tspr->picnum,lpal);
m->cframe = m->nframe = tile2model[tile].framenum;
#ifdef DEBUGGINGAIDS
if (m->cframe >= m->numframes)
Printf("1: c > n\n");
#endif
int32_t const smoothdurationp = (hw_animsmoothing && (tile2model[tile].smoothduration != 0));
spritesmooth_t * const smooth = &spritesmooth[((unsigned)tspr->owner < MAXSPRITES+MAXUNIQHUDID) ? tspr->owner : MAXSPRITES+MAXUNIQHUDID-1];
spriteext_t * const sprext = &spriteext[((unsigned)tspr->owner < MAXSPRITES+MAXUNIQHUDID) ? tspr->owner : MAXSPRITES+MAXUNIQHUDID-1];
const mdanim_t *anim;
for (anim = m->animations; anim && anim->startframe != m->cframe; anim = anim->next)
{
/* do nothing */;
}
int32_t i, j, k;
int32_t fps;
if (!anim)
{
if (!smoothdurationp || ((smooth->mdoldframe == m->cframe) && (smooth->mdcurframe == m->cframe)))
{
m->interpol = 0;
return;
}
// assert(smoothdurationp && ((smooth->mdoldframe != m->cframe) || (smooth->mdcurframe != m->cframe)))
if (smooth->mdoldframe != m->cframe)
{
if (smooth->mdsmooth == 0)
{
sprext->mdanimtims = mdtims;
m->interpol = 0;
smooth->mdsmooth = 1;
smooth->mdcurframe = m->cframe;
}
else if (smooth->mdcurframe != m->cframe)
{
sprext->mdanimtims = mdtims;
m->interpol = 0;
smooth->mdsmooth = 1;
smooth->mdoldframe = smooth->mdcurframe;
smooth->mdcurframe = m->cframe;
}
}
else // if (smooth->mdcurframe != m->cframe)
{
sprext->mdanimtims = mdtims;
m->interpol = 0;
smooth->mdsmooth = 1;
smooth->mdoldframe = smooth->mdcurframe;
smooth->mdcurframe = m->cframe;
}
}
else if (/* anim && */ sprext->mdanimcur != anim->startframe)
{
//if (sprext->flags & SPREXT_NOMDANIM) Printf("SPREXT_NOMDANIM\n");
//Printf("smooth launched ! oldanim %i new anim %i\n", sprext->mdanimcur, anim->startframe);
sprext->mdanimcur = (int16_t)anim->startframe;
sprext->mdanimtims = mdtims;
m->interpol = 0;
if (!smoothdurationp)
{
m->cframe = m->nframe = anim->startframe;
goto prep_return;
}
m->nframe = anim->startframe;
m->cframe = smooth->mdoldframe;
smooth->mdsmooth = 1;
goto prep_return;
}
fps = smooth->mdsmooth ? Blrintf((1.0f / ((float)tile2model[tile].smoothduration * (1.f / (float)UINT16_MAX))) * 66.f)
: anim ? anim->fpssc : 1;
i = (mdtims - sprext->mdanimtims) * ((fps * 120) / 120);
j = (smooth->mdsmooth || !anim) ? 65536 : ((anim->endframe + 1 - anim->startframe) << 16);
// XXX: Just in case you play the game for a VERY long time...
if (i < 0) { i = 0; sprext->mdanimtims = mdtims; }
//compare with j*2 instead of j to ensure i stays > j-65536 for MDANIM_ONESHOT
if (anim && (i >= j+j) && (fps) && !mdpause) //Keep mdanimtims close to mdtims to avoid the use of MOD
sprext->mdanimtims += j/((fps*120)/120);
k = i;
if (anim && (anim->flags&MDANIM_ONESHOT))
{ if (i > j-65536) i = j-65536; }
else { if (i >= j) { i -= j; if (i >= j) i %= j; } }
if (hw_animsmoothing && smooth->mdsmooth)
{
m->nframe = anim ? anim->startframe : smooth->mdcurframe;
m->cframe = smooth->mdoldframe;
//Printf("smoothing... cframe %i nframe %i\n", m->cframe, m->nframe);
if (k > 65535)
{
sprext->mdanimtims = mdtims;
m->interpol = 0;
smooth->mdsmooth = 0;
m->cframe = m->nframe; // = anim ? anim->startframe : smooth->mdcurframe;
smooth->mdoldframe = m->cframe;
//Printf("smooth stopped !\n");
goto prep_return;
}
}
else
{
if (anim)
m->cframe = (i>>16)+anim->startframe;
m->nframe = m->cframe+1;
if (anim && m->nframe > anim->endframe) // VERIFY: (!(hw_animsmoothing && smooth->mdsmooth)) implies (anim!=NULL) ?
m->nframe = anim->startframe;
smooth->mdoldframe = m->cframe;
//Printf("not smoothing... cframe %i nframe %i\n", m->cframe, m->nframe);
}
m->interpol = ((float)(i&65535))/65536.f;
//Printf("interpol %f\n", m->interpol);
prep_return:
if (m->cframe >= m->numframes)
m->cframe = 0;
if (m->nframe >= m->numframes)
m->nframe = 0;
}
//--------------------------------------- MD2 LIBRARY BEGINS ---------------------------------------
static md2model_t *md2load(FileReader & fil, const char *filnam)
{
md2model_t *m;
md3model_t *m3;
md3surf_t *s;
md2frame_t *f;
md2head_t head;
char st[BMAX_PATH];
int32_t i, j, k;
int32_t ournumskins, ournumglcmds;
m = (md2model_t *)Xcalloc(1,sizeof(md2model_t));
m->mdnum = 2; m->scale = .01f;
fil.Read((char *)&head,sizeof(md2head_t));
#if B_BIG_ENDIAN != 0
head.id = B_LITTLE32(head.id); head.vers = B_LITTLE32(head.vers);
head.skinxsiz = B_LITTLE32(head.skinxsiz); head.skinysiz = B_LITTLE32(head.skinysiz);
head.framebytes = B_LITTLE32(head.framebytes); head.numskins = B_LITTLE32(head.numskins);
head.numverts = B_LITTLE32(head.numverts); head.numuv = B_LITTLE32(head.numuv);
head.numtris = B_LITTLE32(head.numtris); head.numglcmds = B_LITTLE32(head.numglcmds);
head.numframes = B_LITTLE32(head.numframes); head.ofsskins = B_LITTLE32(head.ofsskins);
head.ofsuv = B_LITTLE32(head.ofsuv); head.ofstris = B_LITTLE32(head.ofstris);
head.ofsframes = B_LITTLE32(head.ofsframes); head.ofsglcmds = B_LITTLE32(head.ofsglcmds);
head.ofseof = B_LITTLE32(head.ofseof);
#endif
if ((head.id != IDP2_MAGIC) || (head.vers != 8)) { Xfree(m); return 0; } //"IDP2"
ournumskins = head.numskins ? head.numskins : 1;
ournumglcmds = head.numglcmds ? head.numglcmds : 1;
m->numskins = head.numskins;
m->numframes = head.numframes;
m->numverts = head.numverts;
m->numglcmds = head.numglcmds;
m->framebytes = head.framebytes;
m->frames = (char *)Xmalloc(m->numframes*m->framebytes);
m->glcmds = (int32_t *)Xmalloc(ournumglcmds*sizeof(int32_t));
m->tris = (md2tri_t *)Xmalloc(head.numtris*sizeof(md2tri_t));
m->uv = (md2uv_t *)Xmalloc(head.numuv*sizeof(md2uv_t));
fil.Seek(head.ofsframes,FileReader::SeekSet);
if (fil.Read((char *)m->frames,m->numframes*m->framebytes) != m->numframes*m->framebytes)
{ Xfree(m->uv); Xfree(m->tris); Xfree(m->glcmds); Xfree(m->frames); Xfree(m); return 0; }
if (m->numglcmds > 0)
{
fil.Seek(head.ofsglcmds,FileReader::SeekSet);
if (fil.Read((char *)m->glcmds,m->numglcmds*sizeof(int32_t)) != (int32_t)(m->numglcmds*sizeof(int32_t)))
{ Xfree(m->uv); Xfree(m->tris); Xfree(m->glcmds); Xfree(m->frames); Xfree(m); return 0; }
}
fil.Seek(head.ofstris,FileReader::SeekSet);
if (fil.Read((char *)m->tris,head.numtris*sizeof(md2tri_t)) != (int32_t)(head.numtris*sizeof(md2tri_t)))
{ Xfree(m->uv); Xfree(m->tris); Xfree(m->glcmds); Xfree(m->frames); Xfree(m); return 0; }
fil.Seek(head.ofsuv,FileReader::SeekSet);
if (fil.Read((char *)m->uv,head.numuv*sizeof(md2uv_t)) != (int32_t)(head.numuv*sizeof(md2uv_t)))
{ Xfree(m->uv); Xfree(m->tris); Xfree(m->glcmds); Xfree(m->frames); Xfree(m); return 0; }
#if B_BIG_ENDIAN != 0
{
char *f = (char *)m->frames;
int32_t *l,j;
md2frame_t *fr;
for (i = m->numframes-1; i>=0; i--)
{
fr = (md2frame_t *)f;
l = (int32_t *)&fr->mul;
for (j=5; j>=0; j--) l[j] = B_LITTLE32(l[j]);
f += m->framebytes;
}
for (i = m->numglcmds-1; i>=0; i--)
{
m->glcmds[i] = B_LITTLE32(m->glcmds[i]);
}
for (i = head.numtris-1; i>=0; i--)
{
m->tris[i].v[0] = B_LITTLE16(m->tris[i].v[0]);
m->tris[i].v[1] = B_LITTLE16(m->tris[i].v[1]);
m->tris[i].v[2] = B_LITTLE16(m->tris[i].v[2]);
m->tris[i].u[0] = B_LITTLE16(m->tris[i].u[0]);
m->tris[i].u[1] = B_LITTLE16(m->tris[i].u[1]);
m->tris[i].u[2] = B_LITTLE16(m->tris[i].u[2]);
}
for (i = head.numuv-1; i>=0; i--)
{
m->uv[i].u = B_LITTLE16(m->uv[i].u);
m->uv[i].v = B_LITTLE16(m->uv[i].v);
}
}
#endif
Bstrcpy(st,filnam);
for (i=strlen(st)-1; i>0; i--)
if ((st[i] == '/') || (st[i] == '\\')) { i++; break; }
if (i<0) i=0;
st[i] = 0;
m->basepath = (char *)Xmalloc(i+1);
Bstrcpy(m->basepath, st);
m->skinfn = (char *)Xmalloc(ournumskins*64);
if (m->numskins > 0)
{
fil.Seek(head.ofsskins,FileReader::SeekSet);
if (fil.Read(m->skinfn,64*m->numskins) != 64*m->numskins)
{ Xfree(m->glcmds); Xfree(m->frames); Xfree(m); return 0; }
}
maxmodelverts = max(maxmodelverts, m->numverts);
maxmodeltris = max(maxmodeltris, head.numtris);
//return m;
// the MD2 is now loaded internally - let's begin the MD3 conversion process
//Printf("Beginning md3 conversion.\n");
m3 = (md3model_t *)Xcalloc(1, sizeof(md3model_t));
m3->mdnum = 3; m3->texture = nullptr; m3->scale = m->scale;
m3->head.id = IDP3_MAGIC; m3->head.vers = 15;
m3->head.flags = 0;
m3->head.numframes = m->numframes;
m3->head.numtags = 0; m3->head.numsurfs = 1;
m3->head.numskins = 0;
m3->numskins = m3->head.numskins;
m3->numframes = m3->head.numframes;
m3->head.frames = (md3frame_t *)Xcalloc(m3->head.numframes, sizeof(md3frame_t));
m3->muladdframes = (vec3f_t *)Xcalloc(m->numframes * 2, sizeof(vec3f_t));
f = (md2frame_t *)(m->frames);
// frames converting
i = 0;
while (i < m->numframes)
{
f = (md2frame_t *)&m->frames[i*m->framebytes];
Bstrcpy(m3->head.frames[i].nam, f->name);
//Printf("Copied frame %s.\n", m3->head.frames[i].nam);
m3->muladdframes[i*2] = f->mul;
m3->muladdframes[i*2+1] = f->add;
i++;
}
m3->head.tags = NULL;
m3->head.surfs = (md3surf_t *)Xcalloc(1, sizeof(md3surf_t));
s = m3->head.surfs;
// model converting
s->id = IDP3_MAGIC; s->flags = 0;
s->numframes = m->numframes; s->numshaders = 0;
s->numtris = head.numtris;
s->numverts = head.numtris * 3; // oh man talk about memory effectiveness :((((
// MD2 is actually more accurate than MD3 in term of uv-mapping, because each triangle has a triangle counterpart on the UV-map.
// In MD3, each vertex unique UV coordinates, meaning that you have to duplicate vertices if you need non-seamless UV-mapping.
maxmodelverts = max(maxmodelverts, s->numverts);
Bstrcpy(s->nam, "Dummy surface from MD2");
s->shaders = NULL;
s->tris = (md3tri_t *)Xcalloc(head.numtris, sizeof(md3tri_t));
s->uv = (md3uv_t *)Xcalloc(s->numverts, sizeof(md3uv_t));
s->xyzn = (md3xyzn_t *)Xcalloc(s->numverts * m->numframes, sizeof(md3xyzn_t));
//memoryusage += (s->numverts * m->numframes * sizeof(md3xyzn_t));
//Printf("Current model geometry memory usage : %i.\n", memoryusage);
//Printf("Number of frames : %i\n", m->numframes);
//Printf("Number of triangles : %i\n", head.numtris);
//Printf("Number of vertices : %i\n", s->numverts);
// triangle converting
i = 0;
while (i < head.numtris)
{
j = 0;
//Printf("Triangle : %i\n", i);
while (j < 3)
{
// triangle vertex indexes
s->tris[i].i[j] = i*3 + j;
// uv coords
s->uv[i*3+j].u = (float)(m->uv[m->tris[i].u[j]].u) / (float)(head.skinxsiz);
s->uv[i*3+j].v = (float)(m->uv[m->tris[i].u[j]].v) / (float)(head.skinysiz);
// vertices for each frame
k = 0;
while (k < m->numframes)
{
f = (md2frame_t *)&m->frames[k*m->framebytes];
s->xyzn[(k*s->numverts) + (i*3) + j].x = (int16_t) (((f->verts[m->tris[i].v[j]].v[0] * f->mul.x) + f->add.x) * 64.f);
s->xyzn[(k*s->numverts) + (i*3) + j].y = (int16_t) (((f->verts[m->tris[i].v[j]].v[1] * f->mul.y) + f->add.y) * 64.f);
s->xyzn[(k*s->numverts) + (i*3) + j].z = (int16_t) (((f->verts[m->tris[i].v[j]].v[2] * f->mul.z) + f->add.z) * 64.f);
k++;
}
j++;
}
//Printf("End triangle.\n");
i++;
}
//Printf("Finished md3 conversion.\n");
{
mdskinmap_t *sk;
sk = (mdskinmap_t *)Xcalloc(1,sizeof(mdskinmap_t));
sk->palette = 0;
sk->skinnum = 0;
sk->surfnum = 0;
if (m->numskins > 0)
{
FStringf fn("%s%s", m->basepath, m->skinfn);
sk->texture = TexMan.CheckForTexture(fn, ETextureType::Any);
if (!sk->texture.isValid())
{
Printf("Unable to load %s as model skin\n", m->skinfn);
}
}
m3->skinmap = sk;
}
m3->indexes = (uint16_t *)Xmalloc(sizeof(uint16_t) * s->numtris);
m3->vindexes = (uint16_t *)Xmalloc(sizeof(uint16_t) * s->numtris * 3);
m3->maxdepths = (float *)Xmalloc(sizeof(float) * s->numtris);
// die MD2 ! DIE !
Xfree(m->skinfn); Xfree(m->basepath); Xfree(m->uv); Xfree(m->tris); Xfree(m->glcmds); Xfree(m->frames); Xfree(m);
return ((md2model_t *)m3);
}
//---------------------------------------- MD2 LIBRARY ENDS ----------------------------------------
// DICHOTOMIC RECURSIVE SORTING - USED BY MD3DRAW
static int32_t partition(uint16_t *indexes, float *depths, int32_t f, int32_t l)
{
int32_t up = f, down = l;
float piv = depths[f];
uint16_t piv2 = indexes[f];
do
{
while ((up < l) && (depths[up] <= piv))
up++;
while ((depths[down] > piv) && (down > f))
down--;
if (up < down)
{
swapfloat(&depths[up], &depths[down]);
swapshort(&indexes[up], &indexes[down]);
}
}
while (down > up);
depths[f] = depths[down];
depths[down] = piv;
indexes[f] = indexes[down];
indexes[down] = piv2;
return down;
}
static inline void quicksort(uint16_t *indexes, float *depths, int32_t first, int32_t last)
{
int32_t pivIndex;
if (first >= last) return;
pivIndex = partition(indexes, depths, first, last);
if (first < (pivIndex-1)) quicksort(indexes, depths, first, (pivIndex-1));
if ((pivIndex+1) >= last) return;
quicksort(indexes, depths, (pivIndex+1), last);
}
// END OF QUICKSORT LIB
//--------------------------------------- MD3 LIBRARY BEGINS ---------------------------------------
static md3model_t *md3load(FileReader & fil)
{
int32_t i, surfi, ofsurf, offs[4], leng[4];
int32_t maxtrispersurf;
md3model_t *m;
md3surf_t *s;
m = (md3model_t *)Xcalloc(1,sizeof(md3model_t));
m->mdnum = 3; m->texture = nullptr; m->scale = .01f;
m->muladdframes = NULL;
fil.Read(&m->head,SIZEOF_MD3HEAD_T);
#if B_BIG_ENDIAN != 0
m->head.id = B_LITTLE32(m->head.id); m->head.vers = B_LITTLE32(m->head.vers);
m->head.flags = B_LITTLE32(m->head.flags); m->head.numframes = B_LITTLE32(m->head.numframes);
m->head.numtags = B_LITTLE32(m->head.numtags); m->head.numsurfs = B_LITTLE32(m->head.numsurfs);
m->head.numskins = B_LITTLE32(m->head.numskins); m->head.ofsframes = B_LITTLE32(m->head.ofsframes);
m->head.ofstags = B_LITTLE32(m->head.ofstags); m->head.ofssurfs = B_LITTLE32(m->head.ofssurfs);
m->head.eof = B_LITTLE32(m->head.eof);
#endif
if ((m->head.id != IDP3_MAGIC) && (m->head.vers != 15)) { Xfree(m); return 0; } //"IDP3"
m->numskins = m->head.numskins; //<- dead code?
m->numframes = m->head.numframes;
ofsurf = m->head.ofssurfs;
fil.Seek(m->head.ofsframes,FileReader::SeekSet); i = m->head.numframes*sizeof(md3frame_t);
m->head.frames = (md3frame_t *)Xmalloc(i);
fil.Read(m->head.frames,i);
if (m->head.numtags == 0) m->head.tags = NULL;
else
{
fil.Seek(m->head.ofstags,FileReader::SeekSet); i = m->head.numtags*sizeof(md3tag_t);
m->head.tags = (md3tag_t *)Xmalloc(i);
fil.Read(m->head.tags,i);
}
fil.Seek(m->head.ofssurfs,FileReader::SeekSet);
m->head.surfs = (md3surf_t *)Xcalloc(m->head.numsurfs, sizeof(md3surf_t));
// NOTE: We assume that NULL is represented by all-zeros.
// surfs[0].geometry is for POLYMER_MD_PROCESS_CHECK (else: crashes).
// surfs[i].geometry is for FREE_SURFS_GEOMETRY.
Bassert(m->head.surfs[0].geometry == NULL);
#if B_BIG_ENDIAN != 0
{
int32_t j, *l;
for (i = m->head.numframes-1; i>=0; i--)
{
l = (int32_t *)&m->head.frames[i].min;
for (j=3+3+3+1-1; j>=0; j--) l[j] = B_LITTLE32(l[j]);
}
for (i = m->head.numtags-1; i>=0; i--)
{
l = (int32_t *)&m->head.tags[i].p;
for (j=3+3+3+3-1; j>=0; j--) l[j] = B_LITTLE32(l[j]);
}
}
#endif
maxtrispersurf = 0;
for (surfi=0; surfi<m->head.numsurfs; surfi++)
{
s = &m->head.surfs[surfi];
fil.Seek(ofsurf,FileReader::SeekSet); fil.Read(s,SIZEOF_MD3SURF_T);
#if B_BIG_ENDIAN != 0
{
int32_t j, *l;
s->id = B_LITTLE32(s->id);
l = (int32_t *)&s->flags;
for (j=1+1+1+1+1+1+1+1+1+1-1; j>=0; j--) l[j] = B_LITTLE32(l[j]);
}
#endif
offs[0] = ofsurf+s->ofstris;
offs[1] = ofsurf+s->ofsshaders;
offs[2] = ofsurf+s->ofsuv;
offs[3] = ofsurf+s->ofsxyzn;
leng[0] = s->numtris*sizeof(md3tri_t);
leng[1] = s->numshaders*sizeof(md3shader_t);
leng[2] = s->numverts*sizeof(md3uv_t);
leng[3] = s->numframes*s->numverts*sizeof(md3xyzn_t);
//memoryusage += (s->numverts * s->numframes * sizeof(md3xyzn_t));
//Printf("Current model geometry memory usage : %i.\n", memoryusage);
s->tris = (md3tri_t *)Xmalloc((leng[0] + leng[1]) + (leng[2] + leng[3]));
s->shaders = (md3shader_t *)(((intptr_t)s->tris)+leng[0]);
s->uv = (md3uv_t *)(((intptr_t)s->shaders)+leng[1]);
s->xyzn = (md3xyzn_t *)(((intptr_t)s->uv)+leng[2]);
fil.Seek(offs[0],FileReader::SeekSet); fil.Read(s->tris ,leng[0]);
fil.Seek(offs[1],FileReader::SeekSet); fil.Read(s->shaders,leng[1]);
fil.Seek(offs[2],FileReader::SeekSet); fil.Read(s->uv ,leng[2]);
fil.Seek(offs[3],FileReader::SeekSet); fil.Read(s->xyzn ,leng[3]);
#if B_BIG_ENDIAN != 0
{
int32_t j, *l;
for (i=s->numtris-1; i>=0; i--)
{
for (j=2; j>=0; j--) s->tris[i].i[j] = B_LITTLE32(s->tris[i].i[j]);
}
for (i=s->numshaders-1; i>=0; i--)
{
s->shaders[i].i = B_LITTLE32(s->shaders[i].i);
}
for (i=s->numverts-1; i>=0; i--)
{
l = (int32_t *)&s->uv[i].u;
l[0] = B_LITTLE32(l[0]);
l[1] = B_LITTLE32(l[1]);
}
for (i=s->numframes*s->numverts-1; i>=0; i--)
{
s->xyzn[i].x = (int16_t)B_LITTLE16((uint16_t)s->xyzn[i].x);
s->xyzn[i].y = (int16_t)B_LITTLE16((uint16_t)s->xyzn[i].y);
s->xyzn[i].z = (int16_t)B_LITTLE16((uint16_t)s->xyzn[i].z);
}
}
#endif
maxmodelverts = max(maxmodelverts, s->numverts);
maxmodeltris = max(maxmodeltris, s->numtris);
maxtrispersurf = max(maxtrispersurf, s->numtris);
ofsurf += s->ofsend;
}
m->indexes = (uint16_t *)Xmalloc(sizeof(uint16_t) * maxtrispersurf);
m->vindexes = (uint16_t *)Xmalloc(sizeof(uint16_t) * maxtrispersurf * 3);
m->maxdepths = (float *)Xmalloc(sizeof(float) * maxtrispersurf);
return m;
}
static void md3postload_common(md3model_t *m)
{
int framei, surfi, verti;
md3frame_t *frame;
md3xyzn_t *frameverts;
float dist, vec1[3];
// apparently we can't trust loaded models bounding box/sphere information,
// so let's compute it ourselves
framei = 0;
while (framei < m->head.numframes)
{
frame = &m->head.frames[framei];
Bmemset(&frame->min, 0, sizeof(vec3f_t));
Bmemset(&frame->max, 0, sizeof(vec3f_t));
frame->r = 0.0f;
surfi = 0;
while (surfi < m->head.numsurfs)
{
frameverts = &m->head.surfs[surfi].xyzn[framei * m->head.surfs[surfi].numverts];
verti = 0;
while (verti < m->head.surfs[surfi].numverts)
{
if (!verti && !surfi)
{
md3xyzn_t const & framevert = frameverts[0];
frame->min.x = framevert.x;
frame->min.y = framevert.y;
frame->min.z = framevert.z;
frame->max = frame->min;
}
else
{
md3xyzn_t const & framevert = frameverts[verti];
if (frame->min.x > framevert.x)
frame->min.x = framevert.x;
if (frame->max.x < framevert.x)
frame->max.x = framevert.x;
if (frame->min.y > framevert.y)
frame->min.y = framevert.y;
if (frame->max.y < framevert.y)
frame->max.y = framevert.y;
if (frame->min.z > framevert.z)
frame->min.z = framevert.z;
if (frame->max.z < framevert.z)
frame->max.z = framevert.z;
}
++verti;
}
++surfi;
}
frame->cen.x = (frame->min.x + frame->max.x) * .5f;
frame->cen.y = (frame->min.y + frame->max.y) * .5f;
frame->cen.z = (frame->min.z + frame->max.z) * .5f;
surfi = 0;
while (surfi < m->head.numsurfs)
{
md3surf_t const & surf = m->head.surfs[surfi];
frameverts = &surf.xyzn[framei * surf.numverts];
verti = 0;
while (verti < surf.numverts)
{
md3xyzn_t const & framevert = frameverts[verti];
vec1[0] = framevert.x - frame->cen.x;
vec1[1] = framevert.y - frame->cen.y;
vec1[2] = framevert.z - frame->cen.z;
dist = vec1[0] * vec1[0] + vec1[1] * vec1[1] + vec1[2] * vec1[2];
if (dist > frame->r)
frame->r = dist;
++verti;
}
++surfi;
}
frame->r = Bsqrtf(frame->r);
++framei;
}
}
void md3_vox_calcmat_common(tspriteptr_t tspr, const vec3f_t *a0, float f, float mat[16])
{
float k0, k1, k2, k3, k4, k5, k6, k7;
k0 = ((float)(tspr->x+spriteext[tspr->owner].position_offset.x-globalposx))*f*(1.f/1024.f);
k1 = ((float)(tspr->y+spriteext[tspr->owner].position_offset.y-globalposy))*f*(1.f/1024.f);
k4 = (float)sintable[(tspr->ang+spriteext[tspr->owner].angoff+1024)&2047] * (1.f/16384.f);
k5 = (float)sintable[(tspr->ang+spriteext[tspr->owner].angoff+ 512)&2047] * (1.f/16384.f);
k2 = k0*(1-k4)+k1*k5;
k3 = k1*(1-k4)-k0*k5;
k6 = - gsinang;
k7 = gcosang;
mat[0] = k4*k6 + k5*k7; mat[4] = 0; mat[ 8] = k4*k7 - k5*k6; mat[12] = k2*k6 + k3*k7;
mat[1] = 0; mat[5] = 1; mat[ 9] = 0; mat[13] = 0;
k6 = gcosang2;
k7 = gsinang2;
mat[2] = k4*k6 + k5*k7;
mat[6] =0;
mat[10] = k4*k7 - k5*k6;
mat[14] = k2*k6 + k3*k7;
mat[12] = (mat[12] + a0->y*mat[0]) + (a0->z*mat[4] + a0->x*mat[ 8]);
mat[13] = (mat[13] + a0->y*mat[1]) + (a0->z*mat[5] + a0->x*mat[ 9]);
mat[14] = (mat[14] + a0->y*mat[2]) + (a0->z*mat[6] + a0->x*mat[10]);
}
static void md3draw_handle_triangles(const md3surf_t *s, uint16_t *indexhandle,
int32_t texunits, const md3model_t *M)
{
int32_t i;
auto data = screen->mVertexData->AllocVertices(s->numtris * 3);
auto vt = data.first;
for (i=s->numtris-1; i>=0; i--)
{
uint16_t tri = M ? M->indexes[i] : i;
int32_t j;
for (j=0; j<3; j++, vt++)
{
int32_t k = s->tris[tri].i[j];
vt->SetTexCoord(s->uv[k].u, s->uv[k].v);
vt->SetVertex(vertlist[k].x, vertlist[k].y);
}
}
GLInterface.Draw(DT_Triangles, data.second, s->numtris *3);
#ifndef USE_GLEXT
UNREFERENCED_PARAMETER(texunits);
#endif
}
static int32_t polymost_md3draw(md3model_t *m, tspriteptr_t tspr)
{
vec3f_t m0, m1, a0;
md3xyzn_t *v0, *v1;
int32_t i, surfi;
float f, g, k0, k1, k2=0, k3=0, mat[16]; // inits: compiler-happy
float pc[4];
// int32_t texunits = GL_TEXTURE0;
const int32_t owner = tspr->owner;
const spriteext_t *const sext = &spriteext[((unsigned)owner < MAXSPRITES+MAXUNIQHUDID) ? owner : MAXSPRITES+MAXUNIQHUDID-1];
const uint8_t lpal = ((unsigned)owner < MAXSPRITES) ? sprite[tspr->owner].pal : tspr->pal;
const int32_t sizyrep = tilesiz[tspr->picnum].y*tspr->yrepeat;
polymost_outputGLDebugMessage(3, "polymost_md3draw(m:%p, tspr:%p)", m, tspr);
// if ((tspr->cstat&48) == 32) return 0;
updateanimation((md2model_t *)m, tspr, lpal);
//create current&next frame's vertex list from whole list
f = m->interpol; g = 1.f - f;
if (m->interpol < 0.f || m->interpol > 1.f ||
(unsigned)m->cframe >= (unsigned)m->numframes ||
(unsigned)m->nframe >= (unsigned)m->numframes)
{
#ifdef DEBUGGINGAIDS
Printf("%s: mdframe oob: c:%d n:%d total:%d interpol:%.02f\n",
m->head.nam, m->cframe, m->nframe, m->numframes, m->interpol);
#endif
m->interpol = clamp(m->interpol, 0.f, 1.f);
m->cframe = clamp(m->cframe, 0, m->numframes-1);
m->nframe = clamp(m->nframe, 0, m->numframes-1);
}
m0.z = m0.y = m0.x = g *= m->scale * (1.f/64.f);
m1.z = m1.y = m1.x = f *= m->scale * (1.f/64.f);
a0.x = a0.y = 0;
a0.z = m->zadd * m->scale;
// Parkar: Moved up to be able to use k0 for the y-flipping code
k0 = (float)tspr->z+spriteext[tspr->owner].position_offset.z;
f = ((globalorientation&8) && (sprite[tspr->owner].cstat&48)!=0) ? -4.f : 4.f;
k0 -= (tspr->yoffset*tspr->yrepeat)*f;
if ((globalorientation&128) && !((globalorientation&48)==32))
k0 += (float)(sizyrep<<1);
// Parkar: Changed to use the same method as centeroriented sprites
if (globalorientation&8) //y-flipping
{
m0.z = -m0.z; m1.z = -m1.z; a0.z = -a0.z;
k0 -= (float)(sizyrep<<2);
}
if (globalorientation&4) { m0.y = -m0.y; m1.y = -m1.y; a0.y = -a0.y; } //x-flipping
// yoffset differs from zadd in that it does not follow cstat&8 y-flipping
a0.z += m->yoffset*m->scale;
f = ((float)tspr->xrepeat) * (1.f/64.f) * m->bscale;
m0.x *= f; m0.y *= -f;
m1.x *= f; m1.y *= -f;
a0.x *= f; a0.y *= -f;
f = ((float)tspr->yrepeat) * (1.f/64.f) * m->bscale;
m0.z *= f; m1.z *= f; a0.z *= f;
// floor aligned
k1 = (float)tspr->y+spriteext[tspr->owner].position_offset.y;
if ((globalorientation&48)==32)
{
m0.z = -m0.z; m1.z = -m1.z; a0.z = -a0.z;
m0.y = -m0.y; m1.y = -m1.y; a0.y = -a0.y;
f = a0.x; a0.x = a0.z; a0.z = f;
k1 += (float)(sizyrep>>3);
}
// Note: These SCREEN_FACTORS will be neutralized in axes offset
// calculations below again, but are needed for the base offsets.
f = (65536.f*512.f)/(fxdimen*fviewingrange);
g = 32.f/(fxdimen*gxyaspect);
m0.y *= f; m1.y *= f; a0.y = (((float)(tspr->x+spriteext[tspr->owner].position_offset.x-globalposx))* (1.f/1024.f) + a0.y)*f;
m0.x *=-f; m1.x *=-f; a0.x = ((k1 -fglobalposy) * -(1.f/1024.f) + a0.x)*-f;
m0.z *= g; m1.z *= g; a0.z = ((k0 -fglobalposz) * -(1.f/16384.f) + a0.z)*g;
md3_vox_calcmat_common(tspr, &a0, f, mat);
// floor aligned
if ((globalorientation&48)==32)
{
f = mat[4]; mat[4] = mat[8]*16.f; mat[8] = -f*(1.f/16.f);
f = mat[5]; mat[5] = mat[9]*16.f; mat[9] = -f*(1.f/16.f);
f = mat[6]; mat[6] = mat[10]*16.f; mat[10] = -f*(1.f/16.f);
}
//Mirrors
if (grhalfxdown10x < 0) { mat[0] = -mat[0]; mat[4] = -mat[4]; mat[8] = -mat[8]; mat[12] = -mat[12]; }
//------------
// TSPR_FLAGS_MDHACK is an ugly hack in game.c:G_DoSpriteAnimations() telling md2sprite
// to use Z-buffer hacks to hide overdraw problems with the flat-tsprite-on-floor shadows,
// also disabling detail, glow, normal, and specular maps.
// WTF??? This should be done with proper math.
if (tspr->clipdist & TSPR_FLAGS_MDHACK)
{
double f = (double) (tspr->owner + 1) * (std::numeric_limits<double>::epsilon() * 8.0);
if (f != 0.0) f *= 1.0/(double) (FindDistance2D(globalposx - tspr->x, globalposy - tspr->y)>>5);
GLInterface.SetDepthFunc(DF_LEqual);
}
int winding = ((grhalfxdown10x >= 0) ^((globalorientation&8) != 0) ^((globalorientation&4) != 0))? Winding_CW : Winding_CCW;
GLInterface.SetCull(Cull_Back, winding);
// tinting
pc[0] = pc[1] = pc[2] = ((float)numshades - min(max((globalshade * hw_shadescale) + m->shadeoff, 0.f), (float)numshades)) / (float)numshades;
pc[3] = (tspr->cstat&2) ? glblend[tspr->blend].def[!!(tspr->cstat&512)].alpha : 1.0f;
pc[3] *= 1.0f - sext->alpha;
SetRenderStyleFromBlend(!!(tspr->cstat & 2), tspr->blend, !!(tspr->cstat & 512));
if (m->usesalpha) //Sprites with alpha in texture
{
// PLAG : default cutoff removed
GLInterface.EnableBlend(true);
GLInterface.EnableAlphaTest(true);
GLInterface.SetAlphaThreshold(TileFiles.tiledata[globalpicnum].alphaThreshold);
}
else
{
if ((tspr->cstat&2) || sext->alpha > 0.f || pc[3] < 1.0f)
GLInterface.EnableBlend(true); //else GLInterface.EnableBlend(false);
}
GLInterface.SetColor(pc[0],pc[1],pc[2],pc[3]);
//if (MFLAGS_NOCONV(m))
// GLInterface.SetColor(0.0f, 0.0f, 1.0f, 1.0f);
//------------
// PLAG: Cleaner model rotation code
if (sext->pitch || sext->roll)
{
float f = 1.f/((fxdimen * fviewingrange) * (256.f/(65536.f*128.f)) * (m0.x+m1.x));
Bmemset(&a0, 0, sizeof(a0));
if (sext->pivot_offset.x)
a0.x = (float) sext->pivot_offset.x * f;
if (sext->pivot_offset.y) // Compare with SCREEN_FACTORS above
a0.y = (float) sext->pivot_offset.y * f;
if ((sext->pivot_offset.z) && !(tspr->clipdist & TSPR_FLAGS_MDHACK)) // Compare with SCREEN_FACTORS above
a0.z = (float)sext->pivot_offset.z / (gxyaspect * fxdimen * (65536.f/128.f) * (m0.z+m1.z));
k0 = (float)sintable[(sext->pitch+512)&2047] * (1.f/16384.f);
k1 = (float)sintable[sext->pitch&2047] * (1.f/16384.f);
k2 = (float)sintable[(sext->roll+512)&2047] * (1.f/16384.f);
k3 = (float)sintable[sext->roll&2047] * (1.f/16384.f);
}
VSMatrix imat = 0;
imat.scale(1024, 1024, 1024);
GLInterface.SetMatrix(Matrix_Model, &imat);
for (surfi=0; surfi<m->head.numsurfs; surfi++)
{
//PLAG : sorting stuff
uint16_t *indexhandle;
vec3f_t fp;
const md3surf_t *const s = &m->head.surfs[surfi];
v0 = &s->xyzn[m->cframe*s->numverts];
v1 = &s->xyzn[m->nframe*s->numverts];
if (sext->pitch || sext->roll)
{
vec3f_t fp1, fp2;
for (i=s->numverts-1; i>=0; i--)
{
fp.z = v0[i].x + a0.x;
fp.x = v0[i].y + a0.y;
fp.y = v0[i].z + a0.z;
fp1.x = fp.x*k2 + fp.y*k3;
fp1.y = fp.x*k0*(-k3) + fp.y*k0*k2 + fp.z*(-k1);
fp1.z = fp.x*k1*(-k3) + fp.y*k1*k2 + fp.z*k0;
fp.z = v1[i].x + a0.x;
fp.x = v1[i].y + a0.y;
fp.y = v1[i].z + a0.z;
fp2.x = fp.x*k2 + fp.y*k3;
fp2.y = fp.x*k0*(-k3) + fp.y*k0*k2 + fp.z*(-k1);
fp2.z = fp.x*k1*(-k3) + fp.y*k1*k2 + fp.z*k0;
fp.z = (fp1.z - a0.x)*m0.x + (fp2.z - a0.x)*m1.x;
fp.x = (fp1.x - a0.y)*m0.y + (fp2.x - a0.y)*m1.y;
fp.y = (fp1.y - a0.z)*m0.z + (fp2.y - a0.z)*m1.z;
vertlist[i] = fp;
}
}
else
{
for (i=s->numverts-1; i>=0; i--)
{
fp.z = v0[i].x*m0.x + v1[i].x*m1.x;
fp.y = v0[i].z*m0.z + v1[i].z*m1.z;
fp.x = v0[i].y*m0.y + v1[i].y*m1.y;
vertlist[i] = fp;
}
}
//Let OpenGL (and perhaps hardware :) handle the matrix rotation
mat[3] = mat[7] = mat[11] = 0.f; mat[15] = 1.f;
for (int i = 0; i < 15; i++) mat[i] *= 1024.f;
GLInterface.SetMatrix(Matrix_Model, mat);
// PLAG: End
bool exact = false;
auto tex = mdloadskin((md2model_t *)m,tile2model[Ptile2tile(tspr->picnum,lpal)].skinnum,globalpal,surfi, &exact);
if (!tex)
continue;
FGameTexture *det = nullptr, *glow = nullptr;
float detscale = 1.f;
#if 0
// The data lookup here is one incredible mess. Thanks to whoever cooked this up... :(
// Todo: assign the layers to the base textures at setup time
if (!(tspr->clipdist & TSPR_FLAGS_MDHACK))
{
det = tex = hw_detailmapping ? mdloadskin((md2model_t *) m, tile2model[Ptile2tile(tspr->picnum, lpal)].skinnum, DETAILPAL, surfi, nullptr) : nullptr;
if (det)
{
for (auto sk = m->skinmap; sk; sk = sk->next)
if ((int32_t) sk->palette == DETAILPAL && sk->skinnum == tile2model[Ptile2tile(tspr->picnum, lpal)].skinnum && sk->surfnum == surfi)
detscale = sk->param;
}
glow = hw_glowmapping ? mdloadskin((md2model_t *) m, tile2model[Ptile2tile(tspr->picnum, lpal)].skinnum, GLOWPAL, surfi, nullptr) : 0;
}
#endif
int palid = TRANSLATION(Translation_Remap + curbasepal, globalpal);
GLInterface.SetTexture(-1, tex, palid, CLAMP_XY);
if (tspr->clipdist & TSPR_FLAGS_MDHACK)
{
//POGOTODO: if we add support for palette indexing on model skins, the texture for the palswap could be setup here
indexhandle = m->vindexes;
//PLAG: delayed polygon-level sorted rendering
if (m->usesalpha)
{
for (i=0; i<=s->numtris-1; ++i)
{
vec3f_t const vlt[3] = { vertlist[s->tris[i].i[0]], vertlist[s->tris[i].i[1]], vertlist[s->tris[i].i[2]] };
// Matrix multiplication - ugly but clear
vec3f_t const fp[3] = { { (vlt[0].x * mat[0]) + (vlt[0].y * mat[4]) + (vlt[0].z * mat[8]) + mat[12],
(vlt[0].x * mat[1]) + (vlt[0].y * mat[5]) + (vlt[0].z * mat[9]) + mat[13],
(vlt[0].x * mat[2]) + (vlt[0].y * mat[6]) + (vlt[0].z * mat[10]) + mat[14] },
{ (vlt[1].x * mat[0]) + (vlt[1].y * mat[4]) + (vlt[1].z * mat[8]) + mat[12],
(vlt[1].x * mat[1]) + (vlt[1].y * mat[5]) + (vlt[1].z * mat[9]) + mat[13],
(vlt[1].x * mat[2]) + (vlt[1].y * mat[6]) + (vlt[1].z * mat[10]) + mat[14] },
{ (vlt[2].x * mat[0]) + (vlt[2].y * mat[4]) + (vlt[2].z * mat[8]) + mat[12],
(vlt[2].x * mat[1]) + (vlt[2].y * mat[5]) + (vlt[2].z * mat[9]) + mat[13],
(vlt[2].x * mat[2]) + (vlt[2].y * mat[6]) + (vlt[2].z * mat[10]) + mat[14] } };
f = (fp[0].x * fp[0].x) + (fp[0].y * fp[0].y) + (fp[0].z * fp[0].z);
g = (fp[1].x * fp[1].x) + (fp[1].y * fp[1].y) + (fp[1].z * fp[1].z);
if (f > g)
f = g;
g = (fp[2].x * fp[2].x) + (fp[2].y * fp[2].y) + (fp[2].z * fp[2].z);
if (f > g)
f = g;
m->maxdepths[i] = f;
m->indexes[i] = i;
}
// dichotomic recursive sorting - about 100x less iterations than bubblesort
quicksort(m->indexes, m->maxdepths, 0, s->numtris - 1);
}
md3draw_handle_triangles(s, indexhandle, 1, m->usesalpha ? m : NULL);
}
else
{
indexhandle = m->vindexes;
md3draw_handle_triangles(s, indexhandle, 1, NULL);
}
}
//------------
if (m->usesalpha) GLInterface.EnableAlphaTest(false);
GLInterface.SetCull(Cull_None);
GLInterface.SetIdentityMatrix(Matrix_Model);
GLInterface.SetTinting(-1, 0xffffff, 0xffffff);
globalnoeffect=0;
return 1;
}
static void md3free(md3model_t *m)
{
mdanim_t *anim, *nanim = NULL;
mdskinmap_t *sk, *nsk = NULL;
if (!m) return;
for (anim=m->animations; anim; anim=nanim)
{
nanim = anim->next;
Xfree(anim);
}
for (sk=m->skinmap; sk; sk=nsk)
{
nsk = sk->next;
Xfree(sk);
}
if (m->head.surfs)
{
for (bssize_t surfi=m->head.numsurfs-1; surfi>=0; surfi--)
{
md3surf_t *s = &m->head.surfs[surfi];
Xfree(s->tris);
Xfree(s->geometry); // FREE_SURFS_GEOMETRY
}
Xfree(m->head.surfs);
}
Xfree(m->head.tags);
Xfree(m->head.frames);
Xfree(m->muladdframes);
Xfree(m->indexes);
Xfree(m->vindexes);
Xfree(m->maxdepths);
Xfree(m);
}
//---------------------------------------- MD3 LIBRARY ENDS ----------------------------------------
//--------------------------------------- MD LIBRARY BEGINS ---------------------------------------
static mdmodel_t *mdload(const char *filnam)
{
mdmodel_t *vm;
int32_t i;
vm = (mdmodel_t *)voxload(filnam);
if (vm) return vm;
auto fil = fileSystem.OpenFileReader(filnam);
if (!fil.isOpen())
return NULL;
fil.Read(&i,4);
fil.Seek(0,FileReader::SeekSet);
switch (B_LITTLE32(i))
{
case IDP2_MAGIC:
// Printf("Warning: model \"%s\" is version IDP2; wanted version IDP3\n",filnam);
vm = (mdmodel_t *)md2load(fil,filnam);
break; //IDP2
case IDP3_MAGIC:
vm = (mdmodel_t *)md3load(fil);
break; //IDP3
default:
vm = NULL;
break;
}
if (vm)
{
md3model_t *vm3 = (md3model_t *)vm;
// smuggle the file name into the model struct.
// head.nam is unused as far as I can tell
Bstrncpyz(vm3->head.nam, filnam, sizeof(vm3->head.nam));
md3postload_common(vm3);
}
return vm;
}
int32_t polymost_mddraw(tspriteptr_t tspr)
{
if (maxmodelverts > allocmodelverts)
{
vertlist = (vec3f_t *) Xrealloc(vertlist, sizeof(vec3f_t)*maxmodelverts);
allocmodelverts = maxmodelverts;
}
mdmodel_t *const vm = models[tile2model[Ptile2tile(tspr->picnum,
(tspr->owner >= MAXSPRITES) ? tspr->pal : sprite[tspr->owner].pal)].modelid];
if (vm->mdnum == 1)
return polymost_voxdraw((voxmodel_t *)vm,tspr);
else if (vm->mdnum == 3)
return polymost_md3draw((md3model_t *)vm,tspr);
return 0;
}
static void mdfree(mdmodel_t *vm)
{
if (vm->mdnum == 1) { voxfree((voxmodel_t *)vm); return; }
if (vm->mdnum == 2 || vm->mdnum == 3) { md3free((md3model_t *)vm); return; }
}
static void updateModelInterpolation()
{
// sigh...
omdtims = mdtims;
mdtims = I_msTime();
for (native_t i = 0; i < MAXSPRITES + MAXUNIQHUDID; ++i)
if ((mdpause && spriteext[i].mdanimtims) || (spriteext[i].flags & SPREXT_NOMDANIM))
spriteext[i].mdanimtims += mdtims - omdtims;
}
#endif
//---------------------------------------- MD LIBRARY ENDS ----------------------------------------
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