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(svn r13640) -Codechange: make colours behind not fully solid objects less darker for BM_TRANSPARENT (for 32bpp blitters)

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smatz
2008-06-26 16:47:29 +00:00
parent faebe10d81
commit 7ec2ad621d
3 changed files with 34 additions and 17 deletions
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25
src/blitter/32bpp_anim.cpp
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@@ -136,15 +136,24 @@ inline void Blitter_32bppAnim::Draw(const Blitter::BlitterParams *bp, ZoomLevel
* we produce a result the newgrf maker didn't expect ;) */
/* Make the current color a bit more black, so it looks like this image is transparent */
src_px += n;
src_n += n;
do {
*dst = MakeTransparent(*dst, 192);
*anim = remap[*anim];
anim++;
dst++;
} while (--n != 0);
if (src_px->a == 255) {
src_px += n;
do {
*dst = MakeTransparent(*dst, 3, 4);
*anim = remap[*anim];
anim++;
dst++;
} while (--n != 0);
} else {
do {
*dst = MakeTransparent(*dst, (256 * 4 - src_px->a), 256 * 4);
*anim = remap[*anim];
anim++;
dst++;
src_px++;
} while (--n != 0);
}
break;
default: