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[D3D12] DXT5 decompression shader (not used yet)

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Triang3l
2018-09-22 15:52:07 +03:00
parent 4d1b3caf8c
commit bb24521c2b
15 changed files with 2967 additions and 881 deletions
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29
src/xenia/gpu/d3d12/shaders/texture_load_ctx1.cs.hlsl
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@@ -15,22 +15,17 @@
// MM NN OO PP
void XeCTX1FourBlocksRowToR8G8(uint4 end_low_rr00gg00, uint4 end_high_rr00gg00,
uint4 weights_high, uint weights_shift,
out uint4 row_01, out uint4 row_23) {
uint4 weights_high, out uint4 row_01,
out uint4 row_23) {
uint4 weights_low = ~weights_high;
uint4 weights_shifts = weights_shift + uint4(0u, 2u, 4u, 6u);
uint4 row_3aaaa =
((weights_low >> weights_shifts.x) & 3u) * end_low_rr00gg00 +
((weights_high >> weights_shifts.x) & 3u) * end_high_rr00gg00;
uint4 row_3bbbb =
((weights_low >> weights_shifts.y) & 3u) * end_low_rr00gg00 +
((weights_high >> weights_shifts.y) & 3u) * end_high_rr00gg00;
uint4 row_3cccc =
((weights_low >> weights_shifts.z) & 3u) * end_low_rr00gg00 +
((weights_high >> weights_shifts.z) & 3u) * end_high_rr00gg00;
uint4 row_3dddd =
((weights_low >> weights_shifts.w) & 3u) * end_low_rr00gg00 +
((weights_high >> weights_shifts.w) & 3u) * end_high_rr00gg00;
uint4 row_3aaaa = (weights_low & 3u) * end_low_rr00gg00 +
(weights_high & 3u) * end_high_rr00gg00;
uint4 row_3bbbb = ((weights_low >> 2u) & 3u) * end_low_rr00gg00 +
((weights_high >> 2u) & 3u) * end_high_rr00gg00;
uint4 row_3cccc = ((weights_low >> 4u) & 3u) * end_low_rr00gg00 +
((weights_high >> 4u) & 3u) * end_high_rr00gg00;
uint4 row_3dddd = ((weights_low >> 6u) & 3u) * end_low_rr00gg00 +
((weights_high >> 6u) & 3u) * end_high_rr00gg00;
uint4 row_half_3acac = uint4(row_3aaaa.xy, row_3cccc.xy).xzyw;
uint4 row_half_3bdbd = uint4(row_3bbbb.xy, row_3dddd.xy).xzyw;
// R0A G0A R0B G0B | R0C G0C R0D G0D | R1A G1A R1B G1B | R1C G1C R1D G1D
@@ -85,8 +80,8 @@ void main(uint3 xe_thread_id : SV_DispatchThreadID) {
xe_texture_copy_host_pitch, 2u) + xe_texture_copy_host_base;
for (uint i = 0u; i < 4u; ++i) {
uint4 row_01, row_23;
XeCTX1FourBlocksRowToR8G8(end_low_rr00gg00, end_high_rr00gg00, weights_high,
i * 8u, row_01, row_23);
XeCTX1FourBlocksRowToR8G8(end_low_rr00gg00, end_high_rr00gg00,
weights_high >> (i * 8u), row_01, row_23);
xe_texture_copy_dest.Store4(texel_offset_host, row_01);
xe_texture_copy_dest.Store4(texel_offset_host + 16u, row_23);
if (++texel_index_host.y >= xe_texture_copy_size_texels.y) {