diff options
| author | Eugene Sandulenko | 2010-08-23 08:40:30 +0000 |
|---|---|---|
| committer | Eugene Sandulenko | 2010-10-12 23:16:44 +0000 |
| commit | a6d909c07f8a99e826f4a102111736e8198a5925 (patch) | |
| tree | 1f1fa697e0fc40fbdc28db8c007e6a05c7abe0e7 /engines | |
| parent | 18e2534b63c4dc6e77f36a5091bd2ff9d3b48900 (diff) | |
| download | scummvm-rg350-a6d909c07f8a99e826f4a102111736e8198a5925.tar.gz scummvm-rg350-a6d909c07f8a99e826f4a102111736e8198a5925.tar.bz2 scummvm-rg350-a6d909c07f8a99e826f4a102111736e8198a5925.zip | |
SWORD25: Implement image tinting.
svn-id: r53286
Diffstat (limited to 'engines')
| -rw-r--r-- | engines/sword25/gfx/opengl/glimage.cpp | 40 |
1 files changed, 32 insertions, 8 deletions
diff --git a/engines/sword25/gfx/opengl/glimage.cpp b/engines/sword25/gfx/opengl/glimage.cpp index dac31ce709..abc961c22e 100644 --- a/engines/sword25/gfx/opengl/glimage.cpp +++ b/engines/sword25/gfx/opengl/glimage.cpp @@ -169,9 +169,12 @@ bool GLImage::Blit(int PosX, int PosY, int Flipping, Common::Rect *pPartRect, un Height = m_Height; ScaleY = (float) Height / (float) m_Height; - if (Color != 0xffffffff) { - warning("STUB: Image bg color: %x", Color); + if (Color & 0xff000000 != 0xff000000) { + warning("STUB: Image transparent bg color: %x", Color); } + int cr = (Color >> 16) & 0xff; + int cg = (Color >> 8) & 0xff; + int cb = (Color >> 0) & 0xff; if (ScaleX != 1.0 || ScaleY != 1.0) { warning("STUB: Sprite scaling (%f x %f)", ScaleX, ScaleY); @@ -223,17 +226,38 @@ bool GLImage::Blit(int PosX, int PosY, int Flipping, Common::Rect *pPartRect, un out += 4; break; case 255: // Full opacity - *out++ = r; - *out++ = g; - *out++ = b; + if (cr != 255) + *out++ = (r * cr) >> 8; + else + *out++ = r; + + if (cg != 255) + *out++ = (g * cg) >> 8; + else + *out++ = g; + + if (cb != 255) + *out++ = (b * cb) >> 8; + else + *out++ = b; + *out++ = a; break; default: // alpha blending - *out += (byte)(((r - *out) * a) >> 8); + if (cr != 255) + *out += ((r - *out) * a * cr) >> 16; + else + *out += ((r - *out) * a) >> 8; out++; - *out += (byte)(((g - *out) * a) >> 8); + if (cg != 255) + *out += ((g - *out) * a * cg) >> 16; + else + *out += ((g - *out) * a) >> 8; out++; - *out += (byte)(((b - *out) * a) >> 8); + if (cb != 255) + *out += ((b - *out) * a * cb) >> 16; + else + *out += ((b - *out) * a) >> 8; out++; *out = 255; out++; |