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| author | Eugene Sandulenko | 2011-06-17 01:17:25 +0300 |
|---|---|---|
| committer | Eugene Sandulenko | 2011-06-17 01:17:25 +0300 |
| commit | f090eb672714233eea7f13dd56c2fd159fd6bd7e (patch) | |
| tree | fb2031949c3ade42d3fa6c496a0c85ac61142295 | |
| parent | 7d7696272177c9d6b2840d5acfee68c4204b9fb5 (diff) | |
| download | scummvm-rg350-f090eb672714233eea7f13dd56c2fd159fd6bd7e.tar.gz scummvm-rg350-f090eb672714233eea7f13dd56c2fd159fd6bd7e.tar.bz2 scummvm-rg350-f090eb672714233eea7f13dd56c2fd159fd6bd7e.zip | |
SWORD25: Fix image blending for black
This fixes exit menu.
| -rw-r--r-- | engines/sword25/gfx/image/renderedimage.cpp | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/engines/sword25/gfx/image/renderedimage.cpp b/engines/sword25/gfx/image/renderedimage.cpp index a9c9de4f0c..f5f33d8e02 100644 --- a/engines/sword25/gfx/image/renderedimage.cpp +++ b/engines/sword25/gfx/image/renderedimage.cpp @@ -373,17 +373,23 @@ bool RenderedImage::blit(int posX, int posY, int flipping, Common::Rect *pPartRe default: // alpha blending #if defined(SCUMM_LITTLE_ENDIAN) - if (cb != 255) + if (cb == 0) + *out = 0; + else if (cb != 255) *out += ((b - *out) * a * cb) >> 16; else *out += ((b - *out) * a) >> 8; out++; - if (cg != 255) + if (cg == 0) + *out = 0; + else if (cg != 255) *out += ((g - *out) * a * cg) >> 16; else *out += ((g - *out) * a) >> 8; out++; - if (cr != 255) + if (cr == 0) + *out = 0; + else if (cr != 255) *out += ((r - *out) * a * cr) >> 16; else *out += ((r - *out) * a) >> 8; @@ -393,17 +399,23 @@ bool RenderedImage::blit(int posX, int posY, int flipping, Common::Rect *pPartRe #else *out = 255; out++; - if (cr != 255) + if (cr == 0) + *out = 0; + else if (cr != 255) *out += ((r - *out) * a * cr) >> 16; else *out += ((r - *out) * a) >> 8; out++; - if (cg != 255) + if (cg == 0) + *out = 0; + else if (cg != 255) *out += ((g - *out) * a * cg) >> 16; else *out += ((g - *out) * a) >> 8; out++; - if (cb != 255) + if (cb == 0) + *out = 0; + else if (cb != 255) *out += ((b - *out) * a * cb) >> 16; else *out += ((b - *out) * a) >> 8; |