1 files changed, 675 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/compiler/translator/ShaderLang.cpp b/gfx/angle/checkout/src/compiler/translator/ShaderLang.cpp
new file mode 100644
index 0000000000..3a947d3c09
--- /dev/null
+++ b/gfx/angle/checkout/src/compiler/translator/ShaderLang.cpp
@@ -0,0 +1,675 @@
+//
+// Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+//
+// Implement the top-level of interface to the compiler,
+// as defined in ShaderLang.h
+//
+
+#include "GLSLANG/ShaderLang.h"
+
+#include "compiler/translator/Compiler.h"
+#include "compiler/translator/InitializeDll.h"
+#include "compiler/translator/length_limits.h"
+#ifdef ANGLE_ENABLE_HLSL
+#    include "compiler/translator/TranslatorHLSL.h"
+#endif  // ANGLE_ENABLE_HLSL
+#include "angle_gl.h"
+#include "compiler/translator/VariablePacker.h"
+
+namespace sh
+{
+
+namespace
+{
+
+bool isInitialized = false;
+
+//
+// This is the platform independent interface between an OGL driver
+// and the shading language compiler.
+//
+
+template <typename VarT>
+const std::vector<VarT> *GetVariableList(const TCompiler *compiler);
+
+template <>
+const std::vector<Uniform> *GetVariableList(const TCompiler *compiler)
+{
+    return &compiler->getUniforms();
+}
+
+template <>
+const std::vector<Varying> *GetVariableList(const TCompiler *compiler)
+{
+    switch (compiler->getShaderType())
+    {
+        case GL_VERTEX_SHADER:
+            return &compiler->getOutputVaryings();
+        case GL_FRAGMENT_SHADER:
+            return &compiler->getInputVaryings();
+        case GL_COMPUTE_SHADER:
+            ASSERT(compiler->getOutputVaryings().empty() && compiler->getInputVaryings().empty());
+            return &compiler->getOutputVaryings();
+        // Since geometry shaders have both input and output varyings, we shouldn't call GetVaryings
+        // on a geometry shader.
+        default:
+            return nullptr;
+    }
+}
+
+template <>
+const std::vector<Attribute> *GetVariableList(const TCompiler *compiler)
+{
+    return &compiler->getAttributes();
+}
+
+template <>
+const std::vector<OutputVariable> *GetVariableList(const TCompiler *compiler)
+{
+    return &compiler->getOutputVariables();
+}
+
+template <>
+const std::vector<InterfaceBlock> *GetVariableList(const TCompiler *compiler)
+{
+    return &compiler->getInterfaceBlocks();
+}
+
+TCompiler *GetCompilerFromHandle(ShHandle handle)
+{
+    if (!handle)
+    {
+        return nullptr;
+    }
+
+    TShHandleBase *base = static_cast<TShHandleBase *>(handle);
+    return base->getAsCompiler();
+}
+
+template <typename VarT>
+const std::vector<VarT> *GetShaderVariables(const ShHandle handle)
+{
+    TCompiler *compiler = GetCompilerFromHandle(handle);
+    if (!compiler)
+    {
+        return nullptr;
+    }
+
+    return GetVariableList<VarT>(compiler);
+}
+
+#ifdef ANGLE_ENABLE_HLSL
+TranslatorHLSL *GetTranslatorHLSLFromHandle(ShHandle handle)
+{
+    if (!handle)
+        return nullptr;
+    TShHandleBase *base = static_cast<TShHandleBase *>(handle);
+    return base->getAsTranslatorHLSL();
+}
+#endif  // ANGLE_ENABLE_HLSL
+
+GLenum GetGeometryShaderPrimitiveTypeEnum(sh::TLayoutPrimitiveType primitiveType)
+{
+    switch (primitiveType)
+    {
+        case EptPoints:
+            return GL_POINTS;
+        case EptLines:
+            return GL_LINES;
+        case EptLinesAdjacency:
+            return GL_LINES_ADJACENCY_EXT;
+        case EptTriangles:
+            return GL_TRIANGLES;
+        case EptTrianglesAdjacency:
+            return GL_TRIANGLES_ADJACENCY_EXT;
+
+        case EptLineStrip:
+            return GL_LINE_STRIP;
+        case EptTriangleStrip:
+            return GL_TRIANGLE_STRIP;
+
+        case EptUndefined:
+        default:
+            UNREACHABLE();
+            return GL_INVALID_VALUE;
+    }
+}
+
+}  // anonymous namespace
+
+//
+// Driver must call this first, once, before doing any other compiler operations.
+// Subsequent calls to this function are no-op.
+//
+bool Initialize()
+{
+    if (!isInitialized)
+    {
+        isInitialized = InitProcess();
+    }
+    return isInitialized;
+}
+
+//
+// Cleanup symbol tables
+//
+bool Finalize()
+{
+    if (isInitialized)
+    {
+        DetachProcess();
+        isInitialized = false;
+    }
+    return true;
+}
+
+//
+// Initialize built-in resources with minimum expected values.
+//
+void InitBuiltInResources(ShBuiltInResources *resources)
+{
+    // Make comparable.
+    memset(resources, 0, sizeof(*resources));
+
+    // Constants.
+    resources->MaxVertexAttribs             = 8;
+    resources->MaxVertexUniformVectors      = 128;
+    resources->MaxVaryingVectors            = 8;
+    resources->MaxVertexTextureImageUnits   = 0;
+    resources->MaxCombinedTextureImageUnits = 8;
+    resources->MaxTextureImageUnits         = 8;
+    resources->MaxFragmentUniformVectors    = 16;
+    resources->MaxDrawBuffers               = 1;
+
+    // Extensions.
+    resources->OES_standard_derivatives                 = 0;
+    resources->OES_EGL_image_external                   = 0;
+    resources->OES_EGL_image_external_essl3             = 0;
+    resources->NV_EGL_stream_consumer_external          = 0;
+    resources->ARB_texture_rectangle                    = 0;
+    resources->EXT_blend_func_extended                  = 0;
+    resources->EXT_draw_buffers                         = 0;
+    resources->EXT_frag_depth                           = 0;
+    resources->EXT_shader_texture_lod                   = 0;
+    resources->WEBGL_debug_shader_precision             = 0;
+    resources->EXT_shader_framebuffer_fetch             = 0;
+    resources->NV_shader_framebuffer_fetch              = 0;
+    resources->ARM_shader_framebuffer_fetch             = 0;
+    resources->OVR_multiview                            = 0;
+    resources->OVR_multiview2                           = 0;
+    resources->EXT_YUV_target                           = 0;
+    resources->EXT_geometry_shader                      = 0;
+    resources->OES_texture_storage_multisample_2d_array = 0;
+    resources->OES_texture_3D                           = 0;
+    resources->ANGLE_texture_multisample                = 0;
+    resources->ANGLE_multi_draw                         = 0;
+    resources->ANGLE_base_vertex_base_instance          = 0;
+
+    resources->NV_draw_buffers = 0;
+
+    // Disable highp precision in fragment shader by default.
+    resources->FragmentPrecisionHigh = 0;
+
+    // GLSL ES 3.0 constants.
+    resources->MaxVertexOutputVectors  = 16;
+    resources->MaxFragmentInputVectors = 15;
+    resources->MinProgramTexelOffset   = -8;
+    resources->MaxProgramTexelOffset   = 7;
+
+    // Extensions constants.
+    resources->MaxDualSourceDrawBuffers = 0;
+
+    resources->MaxViewsOVR = 4;
+
+    // Disable name hashing by default.
+    resources->HashFunction = nullptr;
+
+    resources->ArrayIndexClampingStrategy = SH_CLAMP_WITH_CLAMP_INTRINSIC;
+
+    resources->MaxExpressionComplexity = 256;
+    resources->MaxCallStackDepth       = 256;
+    resources->MaxFunctionParameters   = 1024;
+
+    // ES 3.1 Revision 4, 7.2 Built-in Constants
+
+    // ES 3.1, Revision 4, 8.13 Texture minification
+    // "The value of MIN_PROGRAM_TEXTURE_GATHER_OFFSET must be less than or equal to the value of
+    // MIN_PROGRAM_TEXEL_OFFSET. The value of MAX_PROGRAM_TEXTURE_GATHER_OFFSET must be greater than
+    // or equal to the value of MAX_PROGRAM_TEXEL_OFFSET"
+    resources->MinProgramTextureGatherOffset = -8;
+    resources->MaxProgramTextureGatherOffset = 7;
+
+    resources->MaxImageUnits            = 4;
+    resources->MaxVertexImageUniforms   = 0;
+    resources->MaxFragmentImageUniforms = 0;
+    resources->MaxComputeImageUniforms  = 4;
+    resources->MaxCombinedImageUniforms = 4;
+
+    resources->MaxUniformLocations = 1024;
+
+    resources->MaxCombinedShaderOutputResources = 4;
+
+    resources->MaxComputeWorkGroupCount[0] = 65535;
+    resources->MaxComputeWorkGroupCount[1] = 65535;
+    resources->MaxComputeWorkGroupCount[2] = 65535;
+    resources->MaxComputeWorkGroupSize[0]  = 128;
+    resources->MaxComputeWorkGroupSize[1]  = 128;
+    resources->MaxComputeWorkGroupSize[2]  = 64;
+    resources->MaxComputeUniformComponents = 512;
+    resources->MaxComputeTextureImageUnits = 16;
+
+    resources->MaxComputeAtomicCounters       = 8;
+    resources->MaxComputeAtomicCounterBuffers = 1;
+
+    resources->MaxVertexAtomicCounters   = 0;
+    resources->MaxFragmentAtomicCounters = 0;
+    resources->MaxCombinedAtomicCounters = 8;
+    resources->MaxAtomicCounterBindings  = 1;
+
+    resources->MaxVertexAtomicCounterBuffers   = 0;
+    resources->MaxFragmentAtomicCounterBuffers = 0;
+    resources->MaxCombinedAtomicCounterBuffers = 1;
+    resources->MaxAtomicCounterBufferSize      = 32;
+
+    resources->MaxUniformBufferBindings       = 32;
+    resources->MaxShaderStorageBufferBindings = 4;
+
+    resources->MaxGeometryUniformComponents     = 1024;
+    resources->MaxGeometryUniformBlocks         = 12;
+    resources->MaxGeometryInputComponents       = 64;
+    resources->MaxGeometryOutputComponents      = 64;
+    resources->MaxGeometryOutputVertices        = 256;
+    resources->MaxGeometryTotalOutputComponents = 1024;
+    resources->MaxGeometryTextureImageUnits     = 16;
+    resources->MaxGeometryAtomicCounterBuffers  = 0;
+    resources->MaxGeometryAtomicCounters        = 0;
+    resources->MaxGeometryShaderStorageBlocks   = 0;
+    resources->MaxGeometryShaderInvocations     = 32;
+    resources->MaxGeometryImageUniforms         = 0;
+}
+
+//
+// Driver calls these to create and destroy compiler objects.
+//
+ShHandle ConstructCompiler(sh::GLenum type,
+                           ShShaderSpec spec,
+                           ShShaderOutput output,
+                           const ShBuiltInResources *resources)
+{
+    TShHandleBase *base = static_cast<TShHandleBase *>(ConstructCompiler(type, spec, output));
+    if (base == nullptr)
+    {
+        return 0;
+    }
+
+    TCompiler *compiler = base->getAsCompiler();
+    if (compiler == nullptr)
+    {
+        return 0;
+    }
+
+    // Generate built-in symbol table.
+    if (!compiler->Init(*resources))
+    {
+        Destruct(base);
+        return 0;
+    }
+
+    return base;
+}
+
+void Destruct(ShHandle handle)
+{
+    if (handle == 0)
+        return;
+
+    TShHandleBase *base = static_cast<TShHandleBase *>(handle);
+
+    if (base->getAsCompiler())
+        DeleteCompiler(base->getAsCompiler());
+}
+
+const std::string &GetBuiltInResourcesString(const ShHandle handle)
+{
+    TCompiler *compiler = GetCompilerFromHandle(handle);
+    ASSERT(compiler);
+    return compiler->getBuiltInResourcesString();
+}
+
+//
+// Do an actual compile on the given strings.  The result is left
+// in the given compile object.
+//
+// Return:  The return value of ShCompile is really boolean, indicating
+// success or failure.
+//
+bool Compile(const ShHandle handle,
+             const char *const shaderStrings[],
+             size_t numStrings,
+             ShCompileOptions compileOptions)
+{
+    TCompiler *compiler = GetCompilerFromHandle(handle);
+    ASSERT(compiler);
+
+    return compiler->compile(shaderStrings, numStrings, compileOptions);
+}
+
+void ClearResults(const ShHandle handle)
+{
+    TCompiler *compiler = GetCompilerFromHandle(handle);
+    ASSERT(compiler);
+    compiler->clearResults();
+}
+
+int GetShaderVersion(const ShHandle handle)
+{
+    TCompiler *compiler = GetCompilerFromHandle(handle);
+    ASSERT(compiler);
+    return compiler->getShaderVersion();
+}
+
+ShShaderOutput GetShaderOutputType(const ShHandle handle)
+{
+    TCompiler *compiler = GetCompilerFromHandle(handle);
+    ASSERT(compiler);
+    return compiler->getOutputType();
+}
+
+//
+// Return any compiler log of messages for the application.
+//
+const std::string &GetInfoLog(const ShHandle handle)
+{
+    TCompiler *compiler = GetCompilerFromHandle(handle);
+    ASSERT(compiler);
+
+    TInfoSink &infoSink = compiler->getInfoSink();
+    return infoSink.info.str();
+}
+
+//
+// Return any object code.
+//
+const std::string &GetObjectCode(const ShHandle handle)
+{
+    TCompiler *compiler = GetCompilerFromHandle(handle);
+    ASSERT(compiler);
+
+    TInfoSink &infoSink = compiler->getInfoSink();
+    return infoSink.obj.str();
+}
+
+const std::map<std::string, std::string> *GetNameHashingMap(const ShHandle handle)
+{
+    TCompiler *compiler = GetCompilerFromHandle(handle);
+    ASSERT(compiler);
+    return &(compiler->getNameMap());
+}
+
+const std::vector<Uniform> *GetUniforms(const ShHandle handle)
+{
+    return GetShaderVariables<Uniform>(handle);
+}
+
+const std::vector<Varying> *GetInputVaryings(const ShHandle handle)
+{
+    TCompiler *compiler = GetCompilerFromHandle(handle);
+    if (compiler == nullptr)
+    {
+        return nullptr;
+    }
+    return &compiler->getInputVaryings();
+}
+
+const std::vector<Varying> *GetOutputVaryings(const ShHandle handle)
+{
+    TCompiler *compiler = GetCompilerFromHandle(handle);
+    if (compiler == nullptr)
+    {
+        return nullptr;
+    }
+    return &compiler->getOutputVaryings();
+}
+
+const std::vector<Varying> *GetVaryings(const ShHandle handle)
+{
+    return GetShaderVariables<Varying>(handle);
+}
+
+const std::vector<Attribute> *GetAttributes(const ShHandle handle)
+{
+    return GetShaderVariables<Attribute>(handle);
+}
+
+const std::vector<OutputVariable> *GetOutputVariables(const ShHandle handle)
+{
+    return GetShaderVariables<OutputVariable>(handle);
+}
+
+const std::vector<InterfaceBlock> *GetInterfaceBlocks(const ShHandle handle)
+{
+    return GetShaderVariables<InterfaceBlock>(handle);
+}
+
+const std::vector<InterfaceBlock> *GetUniformBlocks(const ShHandle handle)
+{
+    ASSERT(handle);
+    TShHandleBase *base = static_cast<TShHandleBase *>(handle);
+    TCompiler *compiler = base->getAsCompiler();
+    ASSERT(compiler);
+
+    return &compiler->getUniformBlocks();
+}
+
+const std::vector<InterfaceBlock> *GetShaderStorageBlocks(const ShHandle handle)
+{
+    ASSERT(handle);
+    TShHandleBase *base = static_cast<TShHandleBase *>(handle);
+    TCompiler *compiler = base->getAsCompiler();
+    ASSERT(compiler);
+
+    return &compiler->getShaderStorageBlocks();
+}
+
+WorkGroupSize GetComputeShaderLocalGroupSize(const ShHandle handle)
+{
+    ASSERT(handle);
+
+    TShHandleBase *base = static_cast<TShHandleBase *>(handle);
+    TCompiler *compiler = base->getAsCompiler();
+    ASSERT(compiler);
+
+    return compiler->getComputeShaderLocalSize();
+}
+
+int GetVertexShaderNumViews(const ShHandle handle)
+{
+    ASSERT(handle);
+    TShHandleBase *base = static_cast<TShHandleBase *>(handle);
+    TCompiler *compiler = base->getAsCompiler();
+    ASSERT(compiler);
+
+    return compiler->getNumViews();
+}
+
+bool CheckVariablesWithinPackingLimits(int maxVectors, const std::vector<ShaderVariable> &variables)
+{
+    return CheckVariablesInPackingLimits(maxVectors, variables);
+}
+
+bool GetShaderStorageBlockRegister(const ShHandle handle,
+                                   const std::string &shaderStorageBlockName,
+                                   unsigned int *indexOut)
+{
+#ifdef ANGLE_ENABLE_HLSL
+    ASSERT(indexOut);
+
+    TranslatorHLSL *translator = GetTranslatorHLSLFromHandle(handle);
+    ASSERT(translator);
+
+    if (!translator->hasShaderStorageBlock(shaderStorageBlockName))
+    {
+        return false;
+    }
+
+    *indexOut = translator->getShaderStorageBlockRegister(shaderStorageBlockName);
+    return true;
+#else
+    return false;
+#endif  // ANGLE_ENABLE_HLSL
+}
+
+bool GetUniformBlockRegister(const ShHandle handle,
+                             const std::string &uniformBlockName,
+                             unsigned int *indexOut)
+{
+#ifdef ANGLE_ENABLE_HLSL
+    ASSERT(indexOut);
+
+    TranslatorHLSL *translator = GetTranslatorHLSLFromHandle(handle);
+    ASSERT(translator);
+
+    if (!translator->hasUniformBlock(uniformBlockName))
+    {
+        return false;
+    }
+
+    *indexOut = translator->getUniformBlockRegister(uniformBlockName);
+    return true;
+#else
+    return false;
+#endif  // ANGLE_ENABLE_HLSL
+}
+
+const std::map<std::string, unsigned int> *GetUniformRegisterMap(const ShHandle handle)
+{
+#ifdef ANGLE_ENABLE_HLSL
+    TranslatorHLSL *translator = GetTranslatorHLSLFromHandle(handle);
+    ASSERT(translator);
+
+    return translator->getUniformRegisterMap();
+#else
+    return nullptr;
+#endif  // ANGLE_ENABLE_HLSL
+}
+
+unsigned int GetReadonlyImage2DRegisterIndex(const ShHandle handle)
+{
+#ifdef ANGLE_ENABLE_HLSL
+    TranslatorHLSL *translator = GetTranslatorHLSLFromHandle(handle);
+    ASSERT(translator);
+
+    return translator->getReadonlyImage2DRegisterIndex();
+#else
+    return 0;
+#endif  // ANGLE_ENABLE_HLSL
+}
+
+unsigned int GetImage2DRegisterIndex(const ShHandle handle)
+{
+#ifdef ANGLE_ENABLE_HLSL
+    TranslatorHLSL *translator = GetTranslatorHLSLFromHandle(handle);
+    ASSERT(translator);
+
+    return translator->getImage2DRegisterIndex();
+#else
+    return 0;
+#endif  // ANGLE_ENABLE_HLSL
+}
+
+const std::set<std::string> *GetUsedImage2DFunctionNames(const ShHandle handle)
+{
+#ifdef ANGLE_ENABLE_HLSL
+    TranslatorHLSL *translator = GetTranslatorHLSLFromHandle(handle);
+    ASSERT(translator);
+
+    return translator->getUsedImage2DFunctionNames();
+#else
+    return nullptr;
+#endif  // ANGLE_ENABLE_HLSL
+}
+
+bool HasValidGeometryShaderInputPrimitiveType(const ShHandle handle)
+{
+    ASSERT(handle);
+
+    TShHandleBase *base = static_cast<TShHandleBase *>(handle);
+    TCompiler *compiler = base->getAsCompiler();
+    ASSERT(compiler);
+
+    return compiler->getGeometryShaderInputPrimitiveType() != EptUndefined;
+}
+
+bool HasValidGeometryShaderOutputPrimitiveType(const ShHandle handle)
+{
+    ASSERT(handle);
+
+    TShHandleBase *base = static_cast<TShHandleBase *>(handle);
+    TCompiler *compiler = base->getAsCompiler();
+    ASSERT(compiler);
+
+    return compiler->getGeometryShaderOutputPrimitiveType() != EptUndefined;
+}
+
+bool HasValidGeometryShaderMaxVertices(const ShHandle handle)
+{
+    ASSERT(handle);
+
+    TShHandleBase *base = static_cast<TShHandleBase *>(handle);
+    TCompiler *compiler = base->getAsCompiler();
+    ASSERT(compiler);
+
+    return compiler->getGeometryShaderMaxVertices() >= 0;
+}
+
+GLenum GetGeometryShaderInputPrimitiveType(const ShHandle handle)
+{
+    ASSERT(handle);
+
+    TShHandleBase *base = static_cast<TShHandleBase *>(handle);
+    TCompiler *compiler = base->getAsCompiler();
+    ASSERT(compiler);
+
+    return GetGeometryShaderPrimitiveTypeEnum(compiler->getGeometryShaderInputPrimitiveType());
+}
+
+GLenum GetGeometryShaderOutputPrimitiveType(const ShHandle handle)
+{
+    ASSERT(handle);
+
+    TShHandleBase *base = static_cast<TShHandleBase *>(handle);
+    TCompiler *compiler = base->getAsCompiler();
+    ASSERT(compiler);
+
+    return GetGeometryShaderPrimitiveTypeEnum(compiler->getGeometryShaderOutputPrimitiveType());
+}
+
+int GetGeometryShaderInvocations(const ShHandle handle)
+{
+    ASSERT(handle);
+
+    TShHandleBase *base = static_cast<TShHandleBase *>(handle);
+    TCompiler *compiler = base->getAsCompiler();
+    ASSERT(compiler);
+
+    return compiler->getGeometryShaderInvocations();
+}
+
+int GetGeometryShaderMaxVertices(const ShHandle handle)
+{
+    ASSERT(handle);
+
+    TShHandleBase *base = static_cast<TShHandleBase *>(handle);
+    TCompiler *compiler = base->getAsCompiler();
+    ASSERT(compiler);
+
+    int maxVertices = compiler->getGeometryShaderMaxVertices();
+    ASSERT(maxVertices >= 0);
+    return maxVertices;
+}
+
+}  // namespace sh