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WAD3: Handle decals with their 255-index hack.

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At least I *think* how this is meant to be handled - looks okay.


git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5664 fc73d0e0-1445-4013-8a0c-d673dee63da5
This commit is contained in:
Eukara 2020-03-29 19:42:40 +00:00
parent b8a81d1868
commit 00479d0567
1 changed files with 21 additions and 9 deletions
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26
engine/client/wad.c
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@ -412,6 +412,12 @@ qbyte *W_ConvertWAD3Texture(miptex_t *tex, size_t lumpsize, int *width, int *hei
else
pal = host_basepal;
/* handle decals type textures -eukara */
if (alpha == 1 && (pal[765] == 255 && pal[766] == 255 && pal[767] == 255))
alpha = 3;
if (alpha == 1 && !(pal[765] == 0 && pal[766] == 0 && pal[767] == 255))
alpha = 2;
if (tex->offsets[0] + tex->width * tex->height > lumpsize)
{ //fucked texture.
for (d = 0;d < tex->width * tex->height;d++)
@ -426,19 +432,25 @@ qbyte *W_ConvertWAD3Texture(miptex_t *tex, size_t lumpsize, int *width, int *hei
else for (d = 0;d < tex->width * tex->height;d++)
{
p = *in++;
if (alpha==1 && p == 255) //only allow alpha on '{' textures
if (alpha == 1 && p == 255) {
out[0] = out[1] = out[2] = out[3] = 0;
else if (alpha == 2)
{
} else if (alpha == 2) {
p *= 3;
/* this will be a blended decal -eukara */
out[0] = pal[765];
out[1] = pal[766];
out[2] = pal[767];
out[3] = 255 - pal[p];
} else if (alpha == 3) {
p *= 3;
/* this is used for glass and so on -eukara */
out[0] = pal[p];
out[1] = pal[p+1];
out[2] = pal[p+2];
out[3] = (out[0]+out[1]+out[2])/3;
}
else
{
out[3] = pal[p];
} else {
p *= 3;
/* non transparent -eukara */
out[0] = pal[p];
out[1] = pal[p+1];
out[2] = pal[p+2];