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25 lines
845 B
GLSL
25 lines
845 B
GLSL
// RGB and Alpha components of ETC2 RGBA are computed separately.
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// This compute shader merely stitches them together to form the final result
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// It's also used by RG11 driver to stitch two R11 into one RG11
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#[compute]
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#version 450
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#include "CrossPlatformSettings_piece_all.glsl"
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#include "UavCrossPlatform_piece_all.glsl"
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layout(local_size_x = 8, //
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local_size_y = 8, //
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local_size_z = 1) in;
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layout(binding = 0) uniform usampler2D srcRGB;
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layout(binding = 1) uniform usampler2D srcAlpha;
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layout(binding = 2, rgba32ui) uniform restrict writeonly uimage2D dstTexture;
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void main() {
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uint2 rgbBlock = OGRE_Load2D(srcRGB, int2(gl_GlobalInvocationID.xy), 0).xy;
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uint2 alphaBlock = OGRE_Load2D(srcAlpha, int2(gl_GlobalInvocationID.xy), 0).xy;
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imageStore(dstTexture, int2(gl_GlobalInvocationID.xy), uint4(rgbBlock.xy, alphaBlock.xy));
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}
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