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[Feat] (MG_Util/ShaderTranspiler): do FloatEqualsZero elimination by leveraging SPIRV-Tool opt pass

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swung0x48
2026-01-24 17:35:33 +08:00
parent 3b5047f2c4
commit 484174767d
8 changed files with 224 additions and 40 deletions
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MobileGL/MG_Test/Program/ProgramTest.cpp
+15 -15
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@@ -922,26 +922,26 @@ TEST_F(ProgramTest, CompileAndLinkWithExplicitVertexIn) {
auto programObject = MG_State::pGLContext->GetCurrentProgram();
auto& spirvs = programObject->GetGeneratedSpirv();
auto& vertexSpirv = spirvs[1]; // 0 - fragment, 1 - vertex
// auto& vertexSpirv = spirvs[1]; // 0 - fragment, 1 - vertex
char* pSrcVertIn = nullptr;
const char* needle = "layout(location = 2) in vec2 UV0;";
// for (auto spirv: spirvs) {
MG_Util::ShaderTranspiler::SpvcSession spvcSession(vertexSpirv);
spvc_compiler_options options;
spvcSession.CreateOptions(&options);
for (auto spirv: spirvs) {
MG_Util::ShaderTranspiler::SpvcSession spvcSession(spirv);
spvc_compiler_options options;
spvcSession.CreateOptions(&options);
spvc_compiler_options_set_uint(options, SPVC_COMPILER_OPTION_GLSL_VERSION, 460);
spvc_compiler_options_set_bool(options, SPVC_COMPILER_OPTION_GLSL_ES, SPVC_FALSE);
// spvc_compiler_options_set_bool(options, SPVC_COMPILER_OPTION_GLSL_VULKAN_SEMANTICS, SPVC_FALSE);
spvc_compiler_options_set_uint(options, SPVC_COMPILER_OPTION_GLSL_VERSION, 460);
spvc_compiler_options_set_bool(options, SPVC_COMPILER_OPTION_GLSL_ES, SPVC_FALSE);
// spvc_compiler_options_set_bool(options, SPVC_COMPILER_OPTION_GLSL_VULKAN_SEMANTICS, SPVC_FALSE);
spvcSession.SetOptions(options);
spvcSession.SetOptions(options);
const char* result = nullptr;
spvcSession.Compile(&result);
printf("%s\n\n", result);
const char* ret = strstr(result, needle);
if (ret) pSrcVertIn = (char*)ret;
// }
const char* result = nullptr;
spvcSession.Compile(&result);
printf("%s\n\n", result);
const char* ret = strstr(result, needle);
if (ret) pSrcVertIn = (char*)ret;
}
ASSERT_TRUE(pSrcVertIn != nullptr) << "Not found expected string in generated shader.\n(Searching for \"" << needle
<< "\")";
}