pandory500/SDL-mirror
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Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha

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--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%40432
This commit is contained in:
Sam Lantinga 2002-08-01 23:06:39 +00:00
parent 8613885333
commit a9c0bef803
4 changed files with 63 additions and 6 deletions
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4
src/video/SDL_blit_N.c
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@ -1202,7 +1202,7 @@ static void BlitNtoN(SDL_BlitInfo *info)
int srcbpp = srcfmt->BytesPerPixel;
SDL_PixelFormat *dstfmt = info->dst;
int dstbpp = dstfmt->BytesPerPixel;
unsigned alpha = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
unsigned alpha = dstfmt->Amask ? srcfmt->alpha : 0;
while ( height-- ) {
DUFFS_LOOP(
@ -1358,7 +1358,7 @@ static void BlitNtoNKey(SDL_BlitInfo *info)
SDL_PixelFormat *dstfmt = info->dst;
int srcbpp = srcfmt->BytesPerPixel;
int dstbpp = dstfmt->BytesPerPixel;
unsigned alpha = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
unsigned alpha = dstfmt->Amask ? srcfmt->alpha : 0;
while ( height-- ) {
DUFFS_LOOP(