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shader: decode compressed UNORM16 MRT exports

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This commit is contained in:
nmzik
2026-08-21 05:23:09 +02:00
parent 342fae06a6
commit 79443aa104
3 changed files with 36 additions and 7 deletions
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tests/shaderCfgTests.cpp
+24
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@@ -9851,6 +9851,19 @@ void TestNewShaderRecompilerExpPixelOutputs() {
"compressed UINT16 MRT export was incorrectly decoded as FP16");
CheckSpirvBinaryValidates(uint16_result.spirv);
ShaderPixelInputInfo unorm16_info;
unorm16_info.target_output_mode[0] = 5;
options.input_info.pixel = &unorm16_info;
ShaderRecompiler::CompileResult unorm16_result;
Check(ShaderRecompiler::TryRecompile(shader, options, unorm16_result, &error),
error.c_str());
const auto unorm16_source = DisassembleSpirvBinary(unorm16_result.spirv);
Check(CountSourceOccurrences(unorm16_source, "UnpackUnorm2x16") == 2u,
"compressed UNORM16 MRT export did not unpack two normalized pairs");
Check(!SpirvContainsExtInst(unorm16_result.spirv, 62),
"compressed UNORM16 MRT export was incorrectly decoded as FP16");
CheckSpirvBinaryValidates(unorm16_result.spirv);
const uint32_t partial_shader[] = {
EncodeExp0(0x00, 0x7),
EncodeExp1(0, 1, 2, 3),
@@ -9899,6 +9912,17 @@ void TestNewShaderRecompilerExpPixelOutputs() {
"OpBitFieldUExtract") == 2u,
"compressed UINT16 BA-only export did not read and unpack VSRC1");
CheckSpirvBinaryValidates(compressed_ba_result.spirv);
unorm16_info.target_output_mode[0] = 5;
options.input_info.pixel = &unorm16_info;
ShaderRecompiler::CompileResult unorm16_ba_result;
Check(ShaderRecompiler::TryRecompile(compressed_ba_shader, options,
unorm16_ba_result, &error),
error.c_str());
const auto unorm16_ba_source = DisassembleSpirvBinary(unorm16_ba_result.spirv);
Check(CountSourceOccurrences(unorm16_ba_source, "UnpackUnorm2x16") == 1u,
"compressed UNORM16 BA-only export did not unpack VSRC1");
CheckSpirvBinaryValidates(unorm16_ba_result.spirv);
}
void TestRenderTargetReverseExportMapping() {