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Clean up defs.c a little. 

- remove redundant bound checks
- add necessary bound checks
- make one comparison pair consistent (> vs. >=)
- one if-if --> clamp

git-svn-id: https://svn.eduke32.com/eduke32@2553 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned 2012-03-28 19:41:15 +00:00
parent 68f0842b85
commit d8b9c9b188
1 changed files with 19 additions and 21 deletions
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40
polymer/eduke32/build/src/defs.c
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@ -305,7 +305,8 @@ static int32_t defsparser(scriptfile *script)
if (scriptfile_getsymbol(script,&tile)) break;
if (scriptfile_getdouble(script,&alpha)) break;
#ifdef USE_OPENGL
if ((uint32_t)tile < MAXTILES) alphahackarray[tile] = alpha;
if ((uint32_t)tile < MAXTILES)
alphahackarray[tile] = alpha;
#endif
}
break;
@ -325,13 +326,10 @@ static int32_t defsparser(scriptfile *script)
tilenume1 = i;
}
#ifdef USE_OPENGL
if ((tilenume1 >= 0 && tilenume1 < MAXTILES) && (tilenume2 >= 0 && tilenume2 < MAXTILES))
if ((unsigned)tilenume1 < MAXTILES && (unsigned)tilenume2 < MAXTILES)
{
for (i=tilenume1; i<=tilenume2; i++)
{
if ((uint32_t)i < MAXTILES)
alphahackarray[i] = alpha;
}
alphahackarray[i] = alpha;
}
#endif
}
@ -419,6 +417,7 @@ static int32_t defsparser(scriptfile *script)
if (scriptfile_getnumber(script,&ysiz)) break;
if (scriptfile_getsymbol(script,&xoffs)) break;
if (scriptfile_getsymbol(script,&yoffs)) break;
if (tile2 < tile1)
{
initprintf("Warning: backwards tile range on line %s:%d\n", script->filename, scriptfile_getlinum(script,cmdtokptr));
@ -426,17 +425,15 @@ static int32_t defsparser(scriptfile *script)
tile2 = tile1;
tile1 = i;
}
if ((tile1 >= 0 && tile1 < MAXTILES) && (tile2 >= 0 && tile2 < MAXTILES))
if ((unsigned)tile1 < MAXTILES && (unsigned)tile2 < MAXTILES)
{
for (i=tile1; i<=tile2; i++)
{
if ((uint32_t)i < MAXTILES)
{
h_xsize[i] = xsiz;
h_ysize[i] = ysiz;
h_xoffs[i] = xoffs;
h_yoffs[i] = yoffs;
}
h_xsize[i] = xsiz;
h_ysize[i] = ysiz;
h_xoffs[i] = xoffs;
h_yoffs[i] = yoffs;
}
}
break;
@ -446,9 +443,7 @@ static int32_t defsparser(scriptfile *script)
int32_t tile1, tile2, spd, type, i;
if (scriptfile_getsymbol(script,&tile1)) break;
if (tile1 >= MAXTILES)break;
if (scriptfile_getsymbol(script,&tile2)) break;
if (tile2 >= MAXTILES)break;
if (scriptfile_getsymbol(script,&spd)) break;
if (scriptfile_getsymbol(script,&type)) break;
if (tile2 < tile1)
@ -458,7 +453,10 @@ static int32_t defsparser(scriptfile *script)
tile2 = tile1;
tile1 = i;
}
picanm[tile1]=(picanm[tile1]&0xffffff3f)+(spd<<24)+(type<<6)+tile2-tile1;
if ((unsigned)tile1 <= MAXTILES && (unsigned)tile2 <= MAXTILES)
picanm[tile1]=(picanm[tile1]&0xffffff3f)+(spd<<24)+(type<<6)+tile2-tile1;
break;
}
case T_TILEFROMTEXTURE:
@ -498,15 +496,15 @@ static int32_t defsparser(scriptfile *script)
break;
}
if ((unsigned)tile > (unsigned)MAXTILES) break; // message is printed later
if ((unsigned)tile >= MAXTILES) break; // message is printed later
if (!fn)
{
initprintf("Error: missing 'file name' for tilefromtexture definition near line %s:%d\n",
script->filename, scriptfile_getlinum(script,texturetokptr));
break;
}
if (alphacut > 255) alphacut = 255;
if (alphacut < 0) alphacut = 0;
alphacut = clamp(alphacut, 0, 255);
i = pathsearchmode;
pathsearchmode = 1;
@ -528,7 +526,7 @@ static int32_t defsparser(scriptfile *script)
goodtogo = 1;
}
if ((unsigned)tile >= (unsigned)MAXTILES)
if ((unsigned)tile >= MAXTILES)
{
initprintf("Error: missing or invalid 'tile number' for texture definition near line %s:%d\n",
script->filename, scriptfile_getlinum(script,texturetokptr));