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Fix two overheadmap-related crashes.

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git-svn-id: https://svn.eduke32.com/eduke32@1872 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned 2011-04-25 19:50:08 +00:00
parent 942c0fc852
commit d9a047df8a
1 changed files with 38 additions and 9 deletions
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47
polymer/eduke32/build/src/engine.c
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@ -2232,7 +2232,7 @@ static int32_t owallmost(int16_t *mostbuf, int32_t w, int32_t z)
{
int32_t bad, inty, xcross, y, yinc;
int32_t s1, s2, s3, s4, ix1, ix2, iy1, iy2, t;
int32_t i;
int32_t i, tmp;
z <<= 7;
s1 = mulscale20(globaluclip,yb1[w]); s2 = mulscale20(globaluclip,yb2[w]);
@ -2297,10 +2297,17 @@ static int32_t owallmost(int16_t *mostbuf, int32_t w, int32_t z)
}
y = (scale(z,xdimenscale,iy1)<<4);
// PK 20110423: 'fix' for crash in 2d map view -----------|
// ...only with NOASM=1 apparently :( v
yinc = ((scale(z,xdimenscale,iy2)<<4)-y) / ((ix2-ix1!=-1) ? (ix2-ix1+1) : 1);
qinterpolatedown16short((intptr_t)&mostbuf[ix1],ix2-ix1+1,y+(globalhoriz<<16),yinc);
//// enable for paranoia:
// ix1 = clamp(ix1, 0, xres-1);
// ix2 = clamp(ix2, 0, xres-1);
// if (ix2-ix1 < 0)
// swaplong(&ix1, &ix2);
// PK 20110423: a bit consistency checking is a good thing:
tmp = (ix2-ix1 >= 0) ? (ix2-ix1+1) : 1;
yinc = ((scale(z,xdimenscale,iy2)<<4)-y) / tmp;
qinterpolatedown16short((intptr_t)&mostbuf[ix1],tmp,y+(globalhoriz<<16),yinc);
if (mostbuf[ix1] < 0) mostbuf[ix1] = 0;
if (mostbuf[ix1] > ydimen) mostbuf[ix1] = ydimen;
@ -2319,6 +2326,7 @@ static int32_t wallmost(int16_t *mostbuf, int32_t w, int32_t sectnum, char dasta
int32_t bad, i, j, t, y, z, inty, intz, xcross, yinc, fw;
int32_t x1, y1, z1, x2, y2, z2, xv, yv, dx, dy, dasqr, oz1, oz2;
int32_t s1, s2, s3, s4, ix1, ix2, iy1, iy2;
int32_t tmp;
//char datempbuf[256];
if (dastat == 0)
@ -2457,10 +2465,17 @@ static int32_t wallmost(int16_t *mostbuf, int32_t w, int32_t sectnum, char dasta
}
y = (scale(z1,xdimenscale,iy1)<<4);
// PK 20110423: 'fix' for crash in 2d map view ------------|
// ...only with NOASM=1 apparently :( v
yinc = ((scale(z2,xdimenscale,iy2)<<4)-y) / ((ix2-ix1!=-1) ? (ix2-ix1+1) : 1);
qinterpolatedown16short((intptr_t)&mostbuf[ix1],ix2-ix1+1,y+(globalhoriz<<16),yinc);
//// enable for paranoia:
// ix1 = clamp(ix1, 0, xres-1);
// ix2 = clamp(ix2, 0, xres-1);
// if (ix2-ix1 < 0)
// swaplong(&ix1, &ix2);
// PK 20110423: a bit consistency checking is a good thing:
tmp = (ix2-ix1 >= 0) ? (ix2-ix1+1) : 1;
yinc = ((scale(z2,xdimenscale,iy2)<<4)-y) / tmp;
qinterpolatedown16short((intptr_t)&mostbuf[ix1],tmp,y+(globalhoriz<<16),yinc);
if (mostbuf[ix1] < 0) mostbuf[ix1] = 0;
if (mostbuf[ix1] > ydimen) mostbuf[ix1] = ydimen;
@ -7004,7 +7019,14 @@ void drawrooms(int32_t daposx, int32_t daposy, int32_t daposz,
if (inpreparemirror)
{
// numbunches==0 can happen if the mirror is far away... the game code decides
// to draw it, but scansector gets zero bunches. Result: big screwup!
// Leave inpreparesector as is, it's restored by completemirror.
if (numbunches==0)
return;
inpreparemirror = 0;
mirrorsx1 = xdimen-1; mirrorsx2 = 0;
for (i=numscans-1; i>=0; i--)
{
@ -7641,6 +7663,13 @@ void drawmapview(int32_t dax, int32_t day, int32_t zoome, int16_t ang)
if ((picanm[globalpicnum]&192) != 0) globalpicnum += animateoffs((int16_t)globalpicnum,s);
if (waloff[globalpicnum] == 0) loadtile(globalpicnum);
globalbufplc = waloff[globalpicnum];
// 'loading' the tile doesn't actually guarantee that it's there afterwards.
// This can really happen when drawing the second frame of a floor-aligned
// 'storm icon' sprite (4894+1)
if (!globalbufplc)
continue;
if ((sector[spr->sectnum].ceilingstat&1) > 0)
globalshade = ((int32_t)sector[spr->sectnum].ceilingshade);
else