Initial import of code.

4 files changed, 688 insertions, 0 deletions

diff --git a/tools/glslang/glslang.cpp b/tools/glslang/glslang.cpp
new file mode 100644
index 000000000..cf563faff
--- /dev/null
+++ b/tools/glslang/glslang.cpp
@@ -0,0 +1,175 @@
+// glslang.cpp
+#include "glslang.h"
+
+
+#include "StandAlone/ResourceLimits.h"
+#include "StandAlone/Worklist.h"
+#include "glslang/Include/ShHandle.h"
+#include "glslang/Include/revision.h"
+#include "glslang/Public/ShaderLang.h"
+#include "SPIRV/GlslangToSpv.h"
+#include "SPIRV/GLSL.std.450.h"
+#include "SPIRV/doc.h"
+#include "SPIRV/disassemble.h"
+
+#include "../../Slang.h"
+
+#if 0
+#include <cstring>
+#include <cstdlib>
+#include <cctype>
+#include <cmath>
+#include <array>
+#include <memory>
+#include <thread>
+#endif
+
+#ifdef _WIN32
+#include <Windows.h>
+#endif
+
+#include <sstream>
+
+// This is a wrapper to allow us to run the `glslang` compiler
+// in a controlled fashion.
+
+#define UNLIMITED 9999
+
+static TBuiltInResource gResources =
+{
+    UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, 
+    UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, 
+    UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, 
+    UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, 
+    UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, 
+    UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, 
+    UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, 
+    UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, 
+    UNLIMITED, UNLIMITED, UNLIMITED,
+
+    { true, true, true, true, true, true, true, true, true, }
+};
+
+static void dump(
+    std::string const&      text,
+    glslang_OutputFunc      outputFunc,
+    void*                   outputUserData,
+    FILE*                   fallbackStream)
+{
+    if( outputFunc )
+    {
+        outputFunc(text.c_str(), outputUserData);
+    }
+    else
+    {
+        fprintf(fallbackStream, "%s", text.c_str());
+
+        // also output it for debug purposes
+        OutputDebugStringA(text.c_str());
+    }
+}
+
+static void dumpDiagnostics(
+    glslang_CompileRequest* request,
+    std::string const&      log)
+{
+    dump(log, request->diagnosticFunc, request->diagnosticUserData, stderr);
+}
+
+extern "C"
+_declspec(dllexport)
+int glslang_compile(glslang_CompileRequest* request)
+{
+    glslang::InitializeProcess();
+
+    EShLanguage glslangStage;
+    switch( request->slangStage )
+    {
+#define CASE(SP, GL) case SLANG_STAGE_##SP: glslangStage = EShLang##GL; break
+    CASE(VERTEX,    Vertex);
+    CASE(FRAGMENT,  Fragment);
+    CASE(GEOMETRY,  Geometry);
+    CASE(HULL,      TessControl);
+    CASE(DOMAIN,    TessEvaluation);
+    CASE(COMPUTE,   Compute);
+
+#undef CASE
+
+    default:
+        return 1;
+    }
+
+    // TODO: compute glslang stage to use
+
+    glslang::TShader* shader = new glslang::TShader(glslangStage);
+    auto shaderPtr = std::unique_ptr<glslang::TShader>(shader);
+
+    glslang::TProgram* program = new glslang::TProgram();
+    auto programPtr = std::unique_ptr<glslang::TProgram>(program);
+
+    int sourceTextLength = (int) strlen(request->sourceText);
+
+    shader->setPreamble("#extension GL_GOOGLE_cpp_style_line_directive : require\n");
+
+    shader->setStringsWithLengthsAndNames(
+        &request->sourceText,
+        &sourceTextLength,
+        &request->sourcePath,
+        1);
+
+    // Note: this seems required to get past a bug where
+    // glslang complains about a declaration of `out gl_PerVertex`
+    // that it (seemingly) *should* allow according to the GLSL-for-Vulkan
+    // extension.
+    shader->setAutoMapLocations(true);
+
+    // Let's auto-map the bindings too, just because we can
+    shader->setAutoMapBindings(true);
+
+    EShMessages messages = EShMessages(EShMsgSpvRules | EShMsgVulkanRules);
+
+    if( !shader->parse(&gResources, 110, false, messages) )
+    {
+        dumpDiagnostics(request, shader->getInfoLog());
+        return 1;
+    }
+
+    program->addShader(shader);
+
+    if( !program->link(messages) )
+    {
+        dumpDiagnostics(request, program->getInfoLog());
+        return 1;
+    }
+
+    if( !program->mapIO() )
+    {
+        dumpDiagnostics(request, program->getInfoLog());
+        return 1;
+    }
+
+    for(int stage = 0; stage < EShLangCount; ++stage)
+    {
+        auto stageIntermediate = program->getIntermediate((EShLanguage)stage);
+        if(!stageIntermediate)
+            continue;
+
+        std::vector<unsigned int> spirv;
+        std::string warningsErrors;
+        spv::SpvBuildLogger logger;
+        glslang::GlslangToSpv(*stageIntermediate, spirv, &logger);
+
+        dumpDiagnostics(request, logger.getAllMessages());
+
+        std::stringstream spirvAsmStream;
+
+        spv::Disassemble(spirvAsmStream, spirv);
+
+        dump(spirvAsmStream.str(), request->outputFunc, request->outputUserData, stdout);
+    }
+
+
+    glslang::FinalizeProcess();
+
+    return 0;
+}
diff --git a/tools/glslang/glslang.h b/tools/glslang/glslang.h
new file mode 100644
index 000000000..73c8a978e
--- /dev/null
+++ b/tools/glslang/glslang.h
@@ -0,0 +1,23 @@
+// glslang.h
+#ifndef GLSLANG_H_INCLUDED
+#define GLSLANG_H_INCLUDED
+
+typedef void (*glslang_OutputFunc)(char const* text, void* userData);
+
+struct glslang_CompileRequest
+{
+    char const*         sourcePath;
+    char const*         sourceText;
+
+    glslang_OutputFunc  diagnosticFunc;
+    void*               diagnosticUserData;
+
+    glslang_OutputFunc  outputFunc;
+    void*               outputUserData;
+
+    int                 slangStage;
+};
+
+typedef int (*glslang_CompileFunc)(glslang_CompileRequest* request);
+
+#endif
diff --git a/tools/glslang/glslang.vcxproj b/tools/glslang/glslang.vcxproj
new file mode 100644
index 000000000..b8034e0bc
--- /dev/null
+++ b/tools/glslang/glslang.vcxproj
@@ -0,0 +1,237 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{C495878A-832C-485B-B347-0998A90CC936}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>glslang</RootNamespace>
+    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v140</PlatformToolset>
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+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v140</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v140</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
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+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
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+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
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+  <ImportGroup Label="Shared">
+  </ImportGroup>
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+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\..\build\slang-build.props" />
+  </ImportGroup>
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+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\..\build\slang-build.props" />
+  </ImportGroup>
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+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\..\build\slang-build.props" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\..\build\slang-build.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+    <IncludePath>$(SolutionDir)external\glslang\;$(IncludePath)</IncludePath>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <LinkIncremental>true</LinkIncremental>
+    <IncludePath>$(SolutionDir)external\glslang\;$(IncludePath)</IncludePath>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+    <IncludePath>$(SolutionDir)external\glslang\;$(IncludePath)</IncludePath>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LinkIncremental>false</LinkIncremental>
+    <IncludePath>$(SolutionDir)external\glslang\;$(IncludePath)</IncludePath>
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+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;GLSLANG_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
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+    <ClCompile>
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+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;GLSLANG_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
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+      <IntrinsicFunctions>true</IntrinsicFunctions>
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+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
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+    <ClCompile Include="..\..\external\glslang\glslang\GenericCodeGen\Link.cpp" />
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+    <ClCompile Include="..\..\external\glslang\glslang\MachineIndependent\glslang_tab.cpp" />
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+    <ClCompile Include="..\..\external\glslang\glslang\MachineIndependent\Initialize.cpp" />
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+    <ClCompile Include="..\..\external\glslang\glslang\MachineIndependent\RemoveTree.cpp" />
+    <ClCompile Include="..\..\external\glslang\glslang\MachineIndependent\Scan.cpp" />
+    <ClCompile Include="..\..\external\glslang\glslang\MachineIndependent\ShaderLang.cpp" />
+    <ClCompile Include="..\..\external\glslang\glslang\MachineIndependent\SymbolTable.cpp" />
+    <ClCompile Include="..\..\external\glslang\glslang\MachineIndependent\Versions.cpp" />
+    <ClCompile Include="..\..\external\glslang\glslang\OSDependent\Windows\ossource.cpp" />
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+    <ClCompile Include="..\..\external\glslang\SPIRV\doc.cpp" />
+    <ClCompile Include="..\..\external\glslang\SPIRV\GlslangToSpv.cpp" />
+    <ClCompile Include="..\..\external\glslang\SPIRV\InReadableOrder.cpp" />
+    <ClCompile Include="..\..\external\glslang\SPIRV\Logger.cpp" />
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+    <ClCompile Include="..\..\external\glslang\StandAlone\StandAlone.cpp" />
+    <ClCompile Include="glslang.cpp" />
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+  <ItemGroup>
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+    <ClInclude Include="..\..\external\glslang\glslang\MachineIndependent\gl_types.h" />
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+    <ClInclude Include="..\..\external\glslang\SPIRV\Logger.h" />
+    <ClInclude Include="..\..\external\glslang\SPIRV\spirv.hpp" />
+    <ClInclude Include="..\..\external\glslang\SPIRV\SpvBuilder.h" />
+    <ClInclude Include="..\..\external\glslang\SPIRV\spvIR.h" />
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+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
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+</Project>
\ No newline at end of file
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new file mode 100644
index 000000000..79a7657ce
--- /dev/null
+++ b/tools/glslang/glslang.vcxproj.filters
@@ -0,0 +1,253 @@
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+      <Filter>Source Files</Filter>
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