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Use AdditionalTextureHints. Add "grayscale" hint.

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Glenn Maynard
2003-10-08 02:52:51 +00:00
parent 8dda57f5bc
commit 93653882ef
1 changed files with 7 additions and 4 deletions
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stepmania/src/RageBitmapTexture.cpp
+7 -4
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@@ -132,9 +132,7 @@ apply_color_key:
}
{
/* This should eventually obsolete 8alphaonly, 0alpha and 1alpha,
* and remove the need to special case background loads. Do this
* after setting the color key for paletted images; it'll also return
/* Do this after setting the color key for paletted images; it'll also return
* TRAIT_NO_TRANSPARENCY if the color key is never used. */
int traits = FindSurfaceTraits(img);
if(traits & TRAIT_NO_TRANSPARENCY)
@@ -144,7 +142,7 @@ apply_color_key:
}
// look in the file name for a format hints
CString HintString = GetID().filename;
CString HintString = GetID().filename + actualID.AdditionalTextureHints;
HintString.MakeLower();
if( HintString.Find("32bpp") != -1 ) actualID.iColorDepth = 32;
@@ -152,6 +150,11 @@ apply_color_key:
if( HintString.Find("dither") != -1 ) actualID.bDither = true;
if( HintString.Find("stretch") != -1 ) actualID.bStretch = true;
/* If the image is marked grayscale, then use all bits not used for alpha
* for the intensity. This way, if an image has no alpha, you get an 8-bit
* grayscale; if it only has boolean transparency, you get a 7-bit grayscale. */
if( HintString.Find("grayscale") != -1 ) actualID.iGrayscaleBits = 8-actualID.iAlphaBits;
/* 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,
* it's not intended to change a color image into a grayscale image. */