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Eliminate potential malloc(0) calls when loading (converting) md2 models

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with no skins or no GL comands.

git-svn-id: https://svn.eduke32.com/eduke32@2118 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned 2011-11-25 09:49:40 +00:00
parent ac12a06de4
commit 568a7e1243
1 changed files with 20 additions and 9 deletions
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29
polymer/eduke32/build/src/mdsprite.c
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@ -1153,6 +1153,8 @@ static md2model_t *md2load(int32_t fil, const char *filnam)
char st[BMAX_PATH];
int32_t i, j, k;
int32_t ournumskins, ournumglcmds;
m = (md2model_t *)Bcalloc(1,sizeof(md2model_t)); if (!m) return(0);
m->mdnum = 2; m->scale = .01f;
@ -1169,6 +1171,9 @@ static md2model_t *md2load(int32_t fil, const char *filnam)
if ((head.id != 0x32504449) || (head.vers != 8)) { Bfree(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;
@ -1176,7 +1181,7 @@ static md2model_t *md2load(int32_t fil, const char *filnam)
m->framebytes = head.framebytes;
m->frames = (char *)Bmalloc(m->numframes*m->framebytes); if (!m->frames) { Bfree(m); return(0); }
m->glcmds = (int32_t *)Bmalloc(m->numglcmds*sizeof(int32_t)); if (!m->glcmds) { Bfree(m->frames); Bfree(m); return(0); }
m->glcmds = (int32_t *)Bmalloc(ournumglcmds*sizeof(int32_t)); if (!m->glcmds) { Bfree(m->frames); Bfree(m); return(0); }
m->tris = (md2tri_t *)Bmalloc(head.numtris*sizeof(md2tri_t)); if (!m->tris) { Bfree(m->glcmds); Bfree(m->frames); Bfree(m); return(0); }
m->uv = (md2uv_t *)Bmalloc(head.numuv*sizeof(md2uv_t)); if (!m->uv) { Bfree(m->tris); Bfree(m->glcmds); Bfree(m->frames); Bfree(m); return(0); }
@ -1184,9 +1189,12 @@ static md2model_t *md2load(int32_t fil, const char *filnam)
if (kread(fil,(char *)m->frames,m->numframes*m->framebytes) != m->numframes*m->framebytes)
{ Bfree(m->uv); Bfree(m->tris); Bfree(m->glcmds); Bfree(m->frames); Bfree(m); return(0); }
klseek(fil,head.ofsglcmds,SEEK_SET);
if (kread(fil,(char *)m->glcmds,m->numglcmds*sizeof(int32_t)) != (int32_t)(m->numglcmds*sizeof(int32_t)))
{ Bfree(m->uv); Bfree(m->tris); Bfree(m->glcmds); Bfree(m->frames); Bfree(m); return(0); }
if (m->numglcmds > 0)
{
klseek(fil,head.ofsglcmds,SEEK_SET);
if (kread(fil,(char *)m->glcmds,m->numglcmds*sizeof(int32_t)) != (int32_t)(m->numglcmds*sizeof(int32_t)))
{ Bfree(m->uv); Bfree(m->tris); Bfree(m->glcmds); Bfree(m->frames); Bfree(m); return(0); }
}
klseek(fil,head.ofstris,SEEK_SET);
if (kread(fil,(char *)m->tris,head.numtris*sizeof(md2tri_t)) != (int32_t)(head.numtris*sizeof(md2tri_t)))
@ -1239,12 +1247,15 @@ static md2model_t *md2load(int32_t fil, const char *filnam)
m->basepath = (char *)Bmalloc(i+1); if (!m->basepath) { Bfree(m->uv); Bfree(m->tris); Bfree(m->glcmds); Bfree(m->frames); Bfree(m); return(0); }
strcpy(m->basepath, st);
m->skinfn = (char *)Bmalloc(m->numskins*64); if (!m->skinfn) { Bfree(m->basepath); Bfree(m->uv); Bfree(m->tris); Bfree(m->glcmds); Bfree(m->frames); Bfree(m); return(0); }
klseek(fil,head.ofsskins,SEEK_SET);
if (kread(fil,m->skinfn,64*m->numskins) != 64*m->numskins)
{ Bfree(m->glcmds); Bfree(m->frames); Bfree(m); return(0); }
m->skinfn = (char *)Bmalloc(ournumskins*64); if (!m->skinfn) { Bfree(m->basepath); Bfree(m->uv); Bfree(m->tris); Bfree(m->glcmds); Bfree(m->frames); Bfree(m); return(0); }
if (m->numskins > 0)
{
klseek(fil,head.ofsskins,SEEK_SET);
if (kread(fil,m->skinfn,64*m->numskins) != 64*m->numskins)
{ Bfree(m->glcmds); Bfree(m->frames); Bfree(m); return(0); }
}
m->texid = (GLuint *)Bcalloc(m->numskins, sizeof(GLuint) * (HICEFFECTMASK+1));
m->texid = (GLuint *)Bcalloc(ournumskins, sizeof(GLuint) * (HICEFFECTMASK+1));
if (!m->texid) { Bfree(m->skinfn); Bfree(m->basepath); Bfree(m->uv); Bfree(m->tris); Bfree(m->glcmds); Bfree(m->frames); Bfree(m); return(0); }
maxmodelverts = max(maxmodelverts, m->numverts);