40 lines
1.5 KiB
HLSL
40 lines
1.5 KiB
HLSL
#include "texture_tile.hlsli"
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RWByteAddressBuffer xe_texture_tile_dest : register(u0);
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[numthreads(8, 32, 1)]
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void main(uint3 xe_thread_id : SV_DispatchThreadID) {
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// 1 thread = 4 texels.
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uint2 texture_size = XeTextureTileSizeScaled();
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uint2 texel_index = xe_thread_id.xy;
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texel_index.x *= 4u;
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[branch] if (any(texel_index >= texture_size)) {
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return;
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}
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uint4 texel_addresses = XeTextureTileGuestAddress(texel_index, 2u);
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bool3 texels_inside = uint3(1u, 2u, 3u) + texel_index.x < texture_size.x;
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uint endian = XeTextureTileEndian();
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uint texels_host_offset = xe_texture_tile_host_base + texel_index.y *
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xe_texture_tile_host_pitch + texel_index.x * 8u;
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uint4 texels_host = xe_texture_tile_source.Load4(texels_host_offset);
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uint2 texels = XeByteSwap(
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((texels_host.xz >> 5u) & 2047u) | ((texels_host.xz >> 21u) << 11u) |
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((texels_host.yw >> 6u) << 22u), endian);
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xe_texture_tile_dest.Store(texel_addresses.x, texels.x);
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[branch] if (texels_inside.x) {
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xe_texture_tile_dest.Store(texel_addresses.y, texels.y);
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[branch] if (texels_inside.y) {
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texels_host = xe_texture_tile_source.Load4(texels_host_offset + 16u);
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texels = XeByteSwap(
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((texels_host.xz >> 5u) & 2047u) | ((texels_host.xz >> 21u) << 11u) |
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((texels_host.yw >> 6u) << 22u), endian);
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xe_texture_tile_dest.Store(texel_addresses.z, texels.x);
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[branch] if (texels_inside.z) {
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xe_texture_tile_dest.Store(texel_addresses.w, texels.y);
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}
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}
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}
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}
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