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add alphamap hint

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Glenn Maynard
2003-10-08 23:21:14 +00:00
parent f1878720a5
commit 4ce32a840a
1 changed files with 4 additions and 0 deletions
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stepmania/src/RageBitmapTexture.cpp
+4
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@@ -155,6 +155,10 @@ apply_color_key:
* grayscale; if it only has boolean transparency, you get a 7-bit grayscale. */ * grayscale; if it only has boolean transparency, you get a 7-bit grayscale. */
if( HintString.Find("grayscale") != -1 ) actualID.iGrayscaleBits = 8-actualID.iAlphaBits; if( HintString.Find("grayscale") != -1 ) actualID.iGrayscaleBits = 8-actualID.iAlphaBits;
/* This indicates that the only component in the texture is alpha; assume all
* color is white. */
if( HintString.Find("alphamap") != -1 ) actualID.iGrayscaleBits = 0;
/* No iGrayscaleBits for images that are already paletted. We don't support /* No iGrayscaleBits for images that are already paletted. We don't support
* that; and that hint is intended for use on images that are already grayscale, * that; and that hint is intended for use on images that are already grayscale,
* it's not intended to change a color image into a grayscale image. */ * it's not intended to change a color image into a grayscale image. */