81 lines
3.1 KiB
HLSL
81 lines
3.1 KiB
HLSL
#include "texture_load.hlsli"
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Buffer<uint2> xe_texture_load_source : register(t0);
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RWBuffer<uint2> xe_texture_load_dest : register(u0);
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[numthreads(16, 32, 1)]
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void main(uint3 xe_thread_id : SV_DispatchThreadID) {
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// 1 thread = 2 blocks passed through an externally provided uint2
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// transformation function (XE_TEXTURE_LOAD_32BPB_TRANSFORM).
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uint3 block_index = xe_thread_id << uint3(1, 0, 0);
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[branch] if (any(block_index >= xe_texture_load_size_blocks)) {
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return;
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}
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int block_offset_host =
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(XeTextureHostLinearOffset(int3(block_index) * int3(3, 3, 1),
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xe_texture_load_host_pitch,
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xe_texture_load_size_blocks.y * 3, 4u) +
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xe_texture_load_host_offset) >> 3;
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int elements_pitch_host = xe_texture_load_host_pitch >> 3;
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int block_offset_guest =
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(XeTextureLoadGuestBlockOffset(int3(block_index), 4u, 2u) * 9) >> 3;
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uint endian = XeTextureLoadEndian32();
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// abc jkl
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// def mno
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// ghi pqr
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// from:
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// ab|cd|ef|gh|ij|kl|mn|op|qr
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// to:
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// ab|cj|kl
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// de|fm|no
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// gh|ip|qr
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uint4 block_abcd = XE_TEXTURE_LOAD_32BPB_TRANSFORM(
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XeEndianSwap32(uint4(xe_texture_load_source[block_offset_guest],
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xe_texture_load_source[block_offset_guest + 1]),
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endian));
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// AB|--|--
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// --|--|--
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// --|--|--
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xe_texture_load_dest[block_offset_host] = block_abcd.xy;
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uint4 block_efgh = XE_TEXTURE_LOAD_32BPB_TRANSFORM(
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XeEndianSwap32(uint4(xe_texture_load_source[block_offset_guest + 2],
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xe_texture_load_source[block_offset_guest + 3]),
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endian));
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// ab|--|--
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// DE|--|--
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// GH|--|--
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xe_texture_load_dest[block_offset_host + elements_pitch_host] =
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uint2(block_abcd.w, block_efgh.x);
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xe_texture_load_dest[block_offset_host + 2 * elements_pitch_host] =
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block_efgh.zw;
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uint4 block_ijkl = XE_TEXTURE_LOAD_32BPB_TRANSFORM(
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XeEndianSwap32(uint4(xe_texture_load_source[block_offset_guest + 4],
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xe_texture_load_source[block_offset_guest + 5]),
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endian));
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// ab|CJ|KL
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// de|--|--
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// gh|--|--
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xe_texture_load_dest[block_offset_host + 1] =
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uint2(block_abcd.z, block_ijkl.y);
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xe_texture_load_dest[block_offset_host + 2] = block_ijkl.zw;
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uint4 block_mnop = XE_TEXTURE_LOAD_32BPB_TRANSFORM(
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XeEndianSwap32(uint4(xe_texture_load_source[block_offset_guest + 6],
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xe_texture_load_source[block_offset_guest + 7]),
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endian));
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// ab|cj|kl
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// de|FM|NO
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// gh|IP|--
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xe_texture_load_dest[block_offset_host + elements_pitch_host + 1] =
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uint2(block_efgh.y, block_mnop.x);
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xe_texture_load_dest[block_offset_host + elements_pitch_host + 2] =
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block_mnop.yz;
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xe_texture_load_dest[block_offset_host + 2 * elements_pitch_host + 1] =
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uint2(block_ijkl.x, block_mnop.w);
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// ab|cj|kl
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// de|fm|no
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// gh|ip|QR
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xe_texture_load_dest[block_offset_host + 2 * elements_pitch_host + 2] =
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XE_TEXTURE_LOAD_32BPB_TRANSFORM(XeEndianSwap32(
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xe_texture_load_source[block_offset_guest + 8], endian));
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}
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