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GPUDevice: Disable SPIR-V optimization on GLSL output

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SSO causes SPIRV-Cross to redeclare builtins, which we don't want
(breaks on Mesa).
This commit is contained in:
Stenzek 2024-06-28 13:51:58 +10:00
parent dd420cbfcf
commit 8c72fd57f1
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1 changed files with 2 additions and 22 deletions
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24
src/util/gpu_device.cpp
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@ -1519,23 +1519,6 @@ bool GPUDevice::TranslateVulkanSpvToLanguage(const std::span<const u8> spirv, GP
static_cast<int>(sres)); static_cast<int>(sres));
return {}; return {};
} }
const bool enable_sso = (is_gles ? (target_version >= 310) : (target_version >= 410));
if ((sres = dyn_libs::spvc_compiler_options_set_bool(soptions, SPVC_COMPILER_OPTION_GLSL_SEPARATE_SHADER_OBJECTS,
enable_sso)) != SPVC_SUCCESS)
{
Error::SetStringFmt(
error, "spvc_compiler_options_set_bool(SPVC_COMPILER_OPTION_GLSL_SEPARATE_SHADER_OBJECTS) failed: {}",
static_cast<int>(sres));
return {};
}
if (enable_sso && ((sres = dyn_libs::spvc_compiler_require_extension(
scompiler, "GL_ARB_separate_shader_objects")) != SPVC_SUCCESS))
{
Error::SetStringFmt(error, "spvc_compiler_require_extension(GL_ARB_separate_shader_objects) failed: {}",
static_cast<int>(sres));
return {};
}
} }
break; break;
#endif #endif
@ -1638,12 +1621,9 @@ std::unique_ptr<GPUShader> GPUDevice::TranspileAndCreateShaderFromSource(
GPUShaderStage stage, GPUShaderLanguage source_language, std::string_view source, const char* entry_point, GPUShaderStage stage, GPUShaderLanguage source_language, std::string_view source, const char* entry_point,
GPUShaderLanguage target_language, u32 target_version, DynamicHeapArray<u8>* out_binary, Error* error) GPUShaderLanguage target_language, u32 target_version, DynamicHeapArray<u8>* out_binary, Error* error)
{ {
// Disable optimization when targeting OpenGL GLSL, and separate shader objects are missing. // Disable optimization when targeting OpenGL GLSL, otherwise, the name-based linking will fail.
// Otherwise, the name-based linking will fail.
const bool optimization = const bool optimization =
(target_language != GPUShaderLanguage::GLSL && target_language != GPUShaderLanguage::GLSLES) || (target_language != GPUShaderLanguage::GLSL && target_language != GPUShaderLanguage::GLSLES);
(target_language == GPUShaderLanguage::GLSL && target_version >= 410) ||
(target_language == GPUShaderLanguage::GLSLES && target_version >= 310);
DynamicHeapArray<u8> spv; DynamicHeapArray<u8> spv;
if (!CompileGLSLShaderToVulkanSpv(stage, source_language, source, entry_point, optimization, false, &spv, error)) if (!CompileGLSLShaderToVulkanSpv(stage, source_language, source, entry_point, optimization, false, &spv, error))
return {}; return {};