30 lines
1.4 KiB
HLSL
30 lines
1.4 KiB
HLSL
#include "texture_copy.hlsli"
|
|
|
|
[numthreads(8, 32, 1)]
|
|
void main(uint3 xe_thread_id : SV_DispatchThreadID) {
|
|
// 1 thread = 4 DXT3A blocks to 4 DXT3 blocks with zero color.
|
|
uint3 block_index = xe_thread_id;
|
|
block_index.x <<= 2u;
|
|
[branch] if (any(block_index >= xe_texture_copy_size_blocks)) {
|
|
return;
|
|
}
|
|
uint4 block_offsets_guest =
|
|
XeTextureCopyGuestBlockOffsets(block_index, 8u, 3u);
|
|
uint4 blocks_01 = uint4(xe_texture_copy_source.Load2(block_offsets_guest.x),
|
|
xe_texture_copy_source.Load2(block_offsets_guest.y));
|
|
uint4 blocks_23 = uint4(xe_texture_copy_source.Load2(block_offsets_guest.z),
|
|
xe_texture_copy_source.Load2(block_offsets_guest.w));
|
|
blocks_01 = XeByteSwap(blocks_01, xe_texture_copy_endianness);
|
|
blocks_23 = XeByteSwap(blocks_23, xe_texture_copy_endianness);
|
|
uint block_offset_host = XeTextureHostLinearOffset(
|
|
block_index, xe_texture_copy_size_blocks.y, xe_texture_copy_host_pitch,
|
|
16u) + xe_texture_copy_host_base;
|
|
xe_texture_copy_dest.Store4(block_offset_host, uint4(blocks_01.xy, 0u, 0u));
|
|
xe_texture_copy_dest.Store4(block_offset_host + 16u,
|
|
uint4(blocks_01.zw, 0u, 0u));
|
|
xe_texture_copy_dest.Store4(block_offset_host + 32u,
|
|
uint4(blocks_23.xy, 0u, 0u));
|
|
xe_texture_copy_dest.Store4(block_offset_host + 48u,
|
|
uint4(blocks_23.zw, 0u, 0u));
|
|
}
|