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RenderDll/Common/Textures/Image/Quantize.h

@@ -0,0 +1,28 @@
+
+#ifndef __QUANTIZE_H__
+#define __QUANTIZE_H__
+
+extern void shQuantizeRGB (SRGBPixel *image, int pixels, int pixperline,
+  byte *&outimage, SRGBPixel *&outpalette, int &maxcolors, bool dither);
+
+
+/// Begin quantization
+extern void shQuantizeBegin ();
+/// Finish quantization
+extern void shQuantizeEnd ();
+/// Count the colors in a image and update the color histogram
+extern void shQuantizeCount (SRGBPixel *image, int pixels,
+  SRGBPixel *transp = NULL);
+/// Bias the color histogram towards given colors (weight = 0..100)
+extern void shQuantizeBias (SRGBPixel *colors, int count, int weight);
+/// Compute the optimal palette for all images passed to QuantizeCount()
+extern void shQuantizePalette (SRGBPixel *&outpalette, int &maxcolors,
+  SRGBPixel *transp = NULL);
+/// Remap a image to the palette computed by shQuantizePalette()
+extern void shQuantizeRemap (SRGBPixel *image, int pixels,
+  byte *&outimage, SRGBPixel *transp = NULL);
+/// Same but apply Floyd-Steinberg dithering for nicer (but slower) results
+extern void shQuantizeRemapDither (SRGBPixel *image, int pixels, int pixperline,
+  SRGBPixel *palette, int colors, byte *&outimage, SRGBPixel *transp = NULL);
+
+#endif // __QUANTIZE_H__