Files
Xenia-Canary/src/xenia/gpu/shaders/texture_load_dxt3aas1111.xesli
2022-06-24 23:37:29 +03:00

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/**
******************************************************************************
* Xenia : Xbox 360 Emulator Research Project *
******************************************************************************
* Copyright 2022 Ben Vanik. All rights reserved. *
* Released under the BSD license - see LICENSE in the root for more details. *
******************************************************************************
*/
#include "texture_load.xesli"
xesl_writeTypedStorageBuffer_declare(xesl_uint4, xe_texture_load_dest, set=0,
binding=0, u0, space0)
xesl_typedStorageBuffer_declare(xesl_uint4, xe_texture_load_source, set=1,
binding=0, t0, space0)
xesl_entry_bindings_begin_compute
XE_TEXTURE_LOAD_CONSTANT_BUFFER_BINDING
xesl_entry_binding_next
xesl_writeTypedStorageBuffer_binding(xesl_uint4, xe_texture_load_dest,
buffer(1))
xesl_entry_binding_next
xesl_typedStorageBuffer_binding(xesl_uint4, xe_texture_load_source, buffer(2))
xesl_entry_bindings_end_inputs_begin_compute
xesl_entry_input_globalInvocationID
xesl_entry_inputs_end_code_begin_compute
// 1 thread = 4 DXT3A-as-1111 blocks to 16x4 16bpp texels passed through an
// externally provided
// `uint4 XE_TEXTURE_LOAD_DXT3A_AS_1_1_1_1_TO_16BPP(uint2 halfblocks)`
// conversion function.
XeTextureLoadInfo load_info = XeTextureLoadGetInfo(
xesl_function_call_constantBuffer(xe_texture_load_constants));
xesl_uint3 block_index = xesl_GlobalInvocationID << xesl_uint3(2u, 0u, 0u);
xesl_dont_flatten
if (any(xesl_greaterThanEqual(block_index.xy, load_info.size_blocks.xy))) {
return;
}
xesl_uint3 texel_index_host = block_index << xesl_uint3(2u, 2u, 0u);
uint block_offset_host = uint(
(XeTextureHostLinearOffset(xesl_int3(texel_index_host),
load_info.host_pitch, load_info.height_texels,
2u) +
load_info.host_offset) >> 4u);
uint elements_pitch_host = load_info.host_pitch >> 4u;
uint block_offset_guest =
XeTextureLoadGuestBlockOffset(load_info, block_index, 8u, 3u) >> 4u;
xesl_uint4 blocks_01 = XeEndianSwap32(
xesl_typedStorageBufferLoad(xe_texture_load_source, block_offset_guest),
load_info.endian_32);
// Odd 2 blocks = even 2 blocks + 32 bytes when tiled.
block_offset_guest += load_info.is_tiled ? 2u : 1u;
xesl_uint4 blocks_23 = XeEndianSwap32(
xesl_typedStorageBufferLoad(xe_texture_load_source, block_offset_guest),
load_info.endian_32);
xesl_typedStorageBufferStore(
xe_texture_load_dest, block_offset_host,
XE_TEXTURE_LOAD_DXT3A_AS_1_1_1_1_TO_16BPP(blocks_01.xz));
xesl_typedStorageBufferStore(
xe_texture_load_dest, block_offset_host + 1u,
XE_TEXTURE_LOAD_DXT3A_AS_1_1_1_1_TO_16BPP(blocks_23.xz));
xesl_dont_flatten if (++texel_index_host.y < load_info.height_texels) {
block_offset_host += elements_pitch_host;
xesl_uint4 high_halfblocks = xesl_uint4(blocks_01.xz, blocks_23.xz) >> 16u;
xesl_typedStorageBufferStore(
xe_texture_load_dest, block_offset_host,
XE_TEXTURE_LOAD_DXT3A_AS_1_1_1_1_TO_16BPP(high_halfblocks.xy));
xesl_typedStorageBufferStore(
xe_texture_load_dest, block_offset_host + 1u,
XE_TEXTURE_LOAD_DXT3A_AS_1_1_1_1_TO_16BPP(high_halfblocks.zw));
xesl_dont_flatten if (++texel_index_host.y < load_info.height_texels) {
block_offset_host += elements_pitch_host;
xesl_typedStorageBufferStore(
xe_texture_load_dest, block_offset_host,
XE_TEXTURE_LOAD_DXT3A_AS_1_1_1_1_TO_16BPP(blocks_01.yw));
xesl_typedStorageBufferStore(
xe_texture_load_dest, block_offset_host + 1u,
XE_TEXTURE_LOAD_DXT3A_AS_1_1_1_1_TO_16BPP(blocks_23.yw));
xesl_dont_flatten if (++texel_index_host.y < load_info.height_texels) {
block_offset_host += elements_pitch_host;
high_halfblocks = xesl_uint4(blocks_01.yw, blocks_23.yw) >> 16u;
xesl_typedStorageBufferStore(
xe_texture_load_dest, block_offset_host,
XE_TEXTURE_LOAD_DXT3A_AS_1_1_1_1_TO_16BPP(high_halfblocks.xy));
xesl_typedStorageBufferStore(
xe_texture_load_dest, block_offset_host + 1u,
XE_TEXTURE_LOAD_DXT3A_AS_1_1_1_1_TO_16BPP(high_halfblocks.zw));
}
}
}
xesl_entry_code_end_compute