Use slang-glslang.dll for spirv-validation (#4642)

* Use slang-glslang.dll for spirv-validation

This change replaces the use of "spirv-val.exe" with an API call to
"spvtools::SpirvTools::Validate()".

Closes #4610

2 files changed, 20 insertions, 0 deletions

diff --git a/source/compiler-core/slang-downstream-compiler.h b/source/compiler-core/slang-downstream-compiler.h
index 14e924f8b..95793eaa3 100644
--- a/source/compiler-core/slang-downstream-compiler.h
+++ b/source/compiler-core/slang-downstream-compiler.h
@@ -309,6 +309,8 @@ public:
     virtual SLANG_NO_THROW SlangResult SLANG_MCALL convert(IArtifact* from, const ArtifactDesc& to, IArtifact** outArtifact) = 0;
         /// Get the version of this compiler
     virtual SLANG_NO_THROW SlangResult SLANG_MCALL getVersionString(slang::IBlob** outVersionString) = 0;
+        /// Validate and return the result
+    virtual SLANG_NO_THROW SlangResult SLANG_MCALL validate(const uint32_t* contents, int contentsSize) = 0;
 
         /// True if underlying compiler uses file system to communicate source
     virtual SLANG_NO_THROW bool SLANG_MCALL isFileBased() = 0;
@@ -327,6 +329,7 @@ public:
     virtual SLANG_NO_THROW bool SLANG_MCALL canConvert(const ArtifactDesc& from, const ArtifactDesc& to) SLANG_OVERRIDE { SLANG_UNUSED(from); SLANG_UNUSED(to); return false; } 
     virtual SLANG_NO_THROW SlangResult SLANG_MCALL convert(IArtifact* from, const ArtifactDesc& to, IArtifact** outArtifact) SLANG_OVERRIDE;
     virtual SLANG_NO_THROW SlangResult SLANG_MCALL getVersionString(slang::IBlob** outVersionString) SLANG_OVERRIDE { *outVersionString = nullptr; return SLANG_FAIL; }
+    virtual SLANG_NO_THROW SlangResult SLANG_MCALL validate(const uint32_t* contents, int contentsSize) SLANG_OVERRIDE { SLANG_UNUSED(contents); SLANG_UNUSED(contentsSize); return SLANG_FAIL; }
 
     DownstreamCompilerBase(const Desc& desc):
         m_desc(desc)
diff --git a/source/compiler-core/slang-glslang-compiler.cpp b/source/compiler-core/slang-glslang-compiler.cpp
index e0a537757..9ef8e7fb4 100644
--- a/source/compiler-core/slang-glslang-compiler.cpp
+++ b/source/compiler-core/slang-glslang-compiler.cpp
@@ -48,6 +48,7 @@ public:
     virtual SLANG_NO_THROW SlangResult SLANG_MCALL convert(IArtifact* from, const ArtifactDesc& to, IArtifact** outArtifact) SLANG_OVERRIDE;
     virtual SLANG_NO_THROW bool SLANG_MCALL isFileBased() SLANG_OVERRIDE { return false; }
     virtual SLANG_NO_THROW SlangResult SLANG_MCALL getVersionString(slang::IBlob** outVersionString) SLANG_OVERRIDE;
+    virtual SLANG_NO_THROW SlangResult SLANG_MCALL validate(const uint32_t* contents, int contentsSize) SLANG_OVERRIDE;
 
         /// Must be called before use
     SlangResult init(ISlangSharedLibrary* library);
@@ -61,6 +62,7 @@ protected:
     glslang_CompileFunc_1_0 m_compile_1_0 = nullptr; 
     glslang_CompileFunc_1_1 m_compile_1_1 = nullptr; 
     glslang_CompileFunc_1_2 m_compile_1_2 = nullptr;
+    glslang_ValidateSPIRVFunc m_validate = nullptr;
 
     ComPtr<ISlangSharedLibrary> m_sharedLibrary;
 
@@ -72,6 +74,7 @@ SlangResult GlslangDownstreamCompiler::init(ISlangSharedLibrary* library)
     m_compile_1_0 = (glslang_CompileFunc_1_0)library->findFuncByName("glslang_compile");
     m_compile_1_1 = (glslang_CompileFunc_1_1)library->findFuncByName("glslang_compile_1_1");
     m_compile_1_2 = (glslang_CompileFunc_1_2)library->findFuncByName("glslang_compile_1_2");
+    m_validate = (glslang_ValidateSPIRVFunc)library->findFuncByName("glslang_validateSPIRV");
 
 
     if (m_compile_1_0 == nullptr && m_compile_1_1 == nullptr && m_compile_1_2 == nullptr)
@@ -281,6 +284,20 @@ SlangResult GlslangDownstreamCompiler::compile(const CompileOptions& inOptions,
     return SLANG_OK;
 }
 
+SlangResult GlslangDownstreamCompiler::validate(const uint32_t* contents, int contentsSize)
+{
+    if (m_validate == nullptr)
+    {
+        return SLANG_FAIL;
+    }
+
+    if (m_validate(contents, contentsSize))
+    {
+        return SLANG_OK;
+    }
+    return SLANG_FAIL;
+}
+
 bool GlslangDownstreamCompiler::canConvert(const ArtifactDesc& from, const ArtifactDesc& to)
 {
     // Can only disassemble blobs that are SPIR-V