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Fix more possible null pointer dereferences in mdsprite

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git-svn-id: https://svn.eduke32.com/eduke32@7031 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
terminx 2018-10-07 05:22:36 +00:00
parent a3bfaed262
commit 3082d381b9
1 changed files with 16 additions and 13 deletions
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29
source/build/src/mdsprite.cpp
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@ -676,8 +676,8 @@ int32_t mdloadskin(md2model_t *m, int32_t number, int32_t pal, int32_t surf)
// possibly fetch an already loaded multitexture :_)
if (pal >= (MAXPALOOKUPS - RESERVEDPALS))
for (i=0; i<nextmodelid; i++)
for (skzero = ((md2model_t *)models[i])->skinmap; skzero; skzero = skzero->next)
if (!Bstrcasecmp(skzero->fn, sk->fn) && skzero->texid[hicfxid(pal)] && sk)
for (skzero = ((md2model_t *)models[i])->skinmap; skzero && sk; skzero = skzero->next)
if (!Bstrcasecmp(skzero->fn, sk->fn) && skzero->texid[hicfxid(pal)])
{
size_t f = hicfxid(pal);
@ -955,7 +955,7 @@ int32_t mdloadskin(md2model_t *m, int32_t number, int32_t pal, int32_t surf)
m->skinloaded = 1+number;
}
int32_t const filter = sk->flags & HICR_FORCEFILTER ? TEXFILTER_ON : gltexfiltermode;
int32_t const filter = (sk->flags & HICR_FORCEFILTER) ? TEXFILTER_ON : gltexfiltermode;
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,glfiltermodes[filter].mag);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,glfiltermodes[filter].min);
@ -978,7 +978,7 @@ int32_t mdloadskin(md2model_t *m, int32_t number, int32_t pal, int32_t surf)
cachead.ydim = tsiz.y>>cachead.quality;
cachead.flags = nonpow2*CACHEAD_NONPOW2 | (hasalpha ? CACHEAD_HASALPHA : 0) |
(sk->flags & (HICR_NODOWNSIZE|HICR_ARTIMMUNITY) ? CACHEAD_NODOWNSIZE : 0);
((sk->flags & (HICR_NODOWNSIZE|HICR_ARTIMMUNITY)) ? CACHEAD_NODOWNSIZE : 0);
/// OSD_Printf("Caching \"%s\"\n",fn);
texcache_writetex_fromdriver(texcacheid, &cachead);
@ -1105,7 +1105,8 @@ void updateanimation(md2model_t *m, const uspritetype *tspr, uint8_t lpal)
goto prep_return;
}
fps = smooth->mdsmooth ? Blrintf((1.0f / ((float)tile2model[tile].smoothduration * (1.f / (float)UINT16_MAX))) * 66.f) : anim ? anim->fpssc : 1;
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 * timerticspersec) / 120);
@ -1450,9 +1451,9 @@ int32_t partition(uint16_t *indexes, float *depths, int32_t f, int32_t l)
uint16_t piv2 = indexes[f];
do
{
while ((depths[up] <= piv) && (up < l))
while ((up < l) && (depths[up] <= piv))
up++;
while ((depths[down] > piv) && (down > f))
while ((depths[down] > piv) && (down > f))
down--;
if (up < down)
{
@ -2241,7 +2242,9 @@ static int32_t polymost_md3draw(md3model_t *m, const uspritetype *tspr)
hictinting_apply(pc, MAXPALOOKUPS-1);
pc[3] = (tspr->cstat&2) ? glblend[tspr->blend].def[!!(tspr->cstat&512)].alpha : 1.0f;
pc[3] *= 1.0f - sext->alpha;
if (sext)
pc[3] *= 1.0f - sext->alpha;
handle_blend(!!(tspr->cstat & 2), tspr->blend, !!(tspr->cstat & 512));
@ -2260,7 +2263,7 @@ static int32_t polymost_md3draw(md3model_t *m, const uspritetype *tspr)
}
else
{
if ((tspr->cstat&2) || sext->alpha > 0.f || pc[3] < 1.0f)
if ((tspr->cstat&2) || (sext && sext->alpha > 0.f) || pc[3] < 1.0f)
glEnable(GL_BLEND); //else glDisable(GL_BLEND);
}
glColor4f(pc[0],pc[1],pc[2],pc[3]);
@ -2269,7 +2272,7 @@ static int32_t polymost_md3draw(md3model_t *m, const uspritetype *tspr)
//------------
// PLAG: Cleaner model rotation code
if (sext->pitch || sext->roll)
if (sext && (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));
@ -2289,8 +2292,8 @@ static int32_t polymost_md3draw(md3model_t *m, const uspritetype *tspr)
k3 = (float)sintable[sext->roll&2047] * (1.f/16384.f);
}
float const xpanning = (float)sext->xpanning * (1.f/256.f);
float const ypanning = (float)sext->ypanning * (1.f/256.f);
float const xpanning = sext ? (float)sext->xpanning * (1.f/256.f) : 0.f;
float const ypanning = sext ? (float)sext->ypanning * (1.f/256.f) : 0.f;
polymost_usePaletteIndexing(false);
polymost_setTexturePosSize({ 0.f, 0.f, 1.f, 1.f });
@ -2322,7 +2325,7 @@ static int32_t polymost_md3draw(md3model_t *m, const uspritetype *tspr)
}
#endif
if (sext->pitch || sext->roll)
if (sext && (sext->pitch || sext->roll))
{
vec3f_t fp1, fp2;