radeonsi: improve quality of 16 sample locations
This results in better 16x and 8x quality when using these locations. Verified with the piglit MSAA accuracy test. Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
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@ -107,12 +107,12 @@ static const uint64_t centroid_priority_8x = 0x3542017635420176ull;
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*/
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static const uint32_t sample_locs_4x_16x[] = {
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FILL_SREG(-5,-2, 5, 3, -2, 6, 3,-5),
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FILL_SREG(-7,-8, 1, 1, -6, 4, 7,-4),
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FILL_SREG(-6,-7, 1, 1, -6, 4, 7,-3),
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FILL_SREG(-1,-3, 6, 7, -3, 2, 0,-7),
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FILL_SREG(-4,-6, 2, 5, -8, 0, 4,-1),
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};
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static const uint64_t centroid_priority_4x = 0x2310231023102310ull;
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static const uint64_t centroid_priority_16x = 0x497ec6b231d0fa85ull;
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static const uint64_t centroid_priority_16x = 0x49e7c6b231d0fa85ull;
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static void si_get_sample_position(struct pipe_context *ctx, unsigned sample_count,
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unsigned sample_index, float *out_value)
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