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https://github.com/OpenDiablo2/OpenDiablo2
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1ad3c72211
* Common function for indexed color to rgba * Use ImgIndexToRGBA when decoding tiles * Pass DrawEffect down to animation
24 lines
600 B
Go
24 lines
600 B
Go
package d2asset
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import "github.com/OpenDiablo2/OpenDiablo2/d2common/d2interface"
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func ImgIndexToRGBA(indexData []byte, palette d2interface.Palette) []byte {
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bytesPerPixel := 4
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colorData := make([]byte, len(indexData)*bytesPerPixel)
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for i := 0; i < len(indexData); i++ {
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// Index zero is hardcoded transparent regardless of palette
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if indexData[i] == 0 {
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continue
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}
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c := palette.GetColors()[indexData[i]]
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colorData[i*bytesPerPixel] = c.R()
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colorData[i*bytesPerPixel+1] = c.G()
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colorData[i*bytesPerPixel+2] = c.B()
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colorData[i*bytesPerPixel+3] = c.A()
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}
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return colorData
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}
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