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engine.c: instead of fogpal post-tweaks (last 2 commits), normalize by numshades-1.

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That is, for every for palette (now, even ones created by the user) the last
shade is the (or rather, a color close to the) full fog color by construction.
In loadpalette(), reject a PALETTE.DAT with only one shade level.

git-svn-id: https://svn.eduke32.com/eduke32@4458 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned 2014-05-01 16:55:48 +00:00
parent c697835073
commit d180e55234
1 changed files with 2 additions and 9 deletions
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11
polymer/eduke32/build/src/engine.c
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@ -8051,7 +8051,7 @@ static int32_t loadpalette(void)
kread(fil,palette,768);
kread(fil,&numshades,2); numshades = B_LITTLE16(numshades);
if (numshades <= 0)
if (numshades <= 1)
return loadpalette_err("Invalid number of shades in \"palette.dat\"!");
alloc_palookup(0);
@ -8254,18 +8254,11 @@ int32_t loadlookups(int32_t fp, uint8_t **basepaltabptr)
for (j=1; j<=255-3; j++)
if (!palookup[j] && !palookup[j+1] && !palookup[j+2] && !palookup[j+3])
{
int32_t i, k;
makepalookup(j, NULL, 15, 15, 15, 1);
makepalookup(j+1, NULL, 15, 0, 0, 1);
makepalookup(j+2, NULL, 0, 15, 0, 1);
makepalookup(j+3, NULL, 0, 0, 15, 1);
// Make last shade value always map to the same color index.
for (k=0; k<3; k++)
for (i=1; i<255; i++)
palookup[j+k][((numshades-1)<<8) + i] = palookup[j+k][((numshades-1)<<8)];
firstfogpal = j;
break;
}
@ -14985,7 +14978,7 @@ void makepalookup(int32_t palnum, const char *remapbuf, int8_t r, int8_t g, int8
for (i=0; i<numshades; i++)
{
int32_t palscale = divscale16(i,numshades);
int32_t palscale = divscale16(i,numshades-1);
for (j=0; j<256; j++)
{