ANGLE: upgrade to 2.1~07d49ef5350a

This version of ANGLE provides partial ES3 support, numerous
bug fixes, and several potentially useful vendor extensions.

All patches have been rebased. The following changes are noted:

0000-General-fixes-for-ANGLE-2.1.patch
  contains compile fixes for the new ANGLE

0004-Make-it-possible-to-link-ANGLE-statically-for-single.patch
  has incorporated patch 0015.

0007-Make-DX9-DX11-mutually-exclusive.patch
  has been removed as it was fixed upstream.

0007-Fix-ANGLE-build-with-Microsoft-Visual-Studio-14-CTP.patch
  has been moved up to fill the patch number gap.

0010-ANGLE-Enable-D3D11-for-feature-level-9-cards.patch
  now contains patch 0014 and 0017.

0013-ANGLE-Allow-for-universal-program-binaries.patch
  has been removed as it is no longer relevant.

0014-ANGLE-D3D11-Fix-internal-index-buffer-for-level-9-ha.patch
  has been merged with patch 0010.

0015-ANGLE-Don-t-export-DLLMain-functions-for-static-buil.patch
  has been merged with patch 0004.

0016-ANGLE-WinRT-Call-Trim-when-application-suspends.patch
  has been removed and will be replaced by a follow-up patch using a
  different technique.

0017-ANGLE-D3D11-Don-t-use-mipmaps-in-level-9-textures.patch
  has been merged with patch 0010.

0018-ANGLE-WinRT-Create-swap-chain-using-physical-resolut.patch
  has been removed and will be replaced by a follow-up patch extending
  the EGL_ANGLE_window_fixed_size extension.

0019-Fix-ANGLE-build-with-Microsoft-Visual-Studio-14-CTP.patch
  is now patch 0007.

[ChangeLog][Third-party libraries] ANGLE has been upgraded to
version 2.1, bringing partial support for OpenGL ES3 over
Direct3D 11, numerous bug fixes, and several new vendor extensions.

Change-Id: I6d95ce1480462d67228d83c1e5c74a1706b5b21c
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>

1 files changed, 141 insertions, 93 deletions

diff --git a/src/3rdparty/angle/src/compiler/translator/Compiler.cpp b/src/3rdparty/angle/src/compiler/translator/Compiler.cpp
index eb7465e35c..0606c72e39 100644
--- a/src/3rdparty/angle/src/compiler/translator/Compiler.cpp
+++ b/src/3rdparty/angle/src/compiler/translator/Compiler.cpp
@@ -1,33 +1,50 @@
 //
-// Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
+// Copyright (c) 2002-2014 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.
 //
 
 #include "compiler/translator/BuiltInFunctionEmulator.h"
+#include "compiler/translator/Compiler.h"
 #include "compiler/translator/DetectCallDepth.h"
 #include "compiler/translator/ForLoopUnroll.h"
 #include "compiler/translator/Initialize.h"
 #include "compiler/translator/InitializeParseContext.h"
 #include "compiler/translator/InitializeVariables.h"
-#include "compiler/translator/MapLongVariableNames.h"
 #include "compiler/translator/ParseContext.h"
 #include "compiler/translator/RenameFunction.h"
-#include "compiler/translator/ShHandle.h"
+#include "compiler/translator/ScalarizeVecAndMatConstructorArgs.h"
 #include "compiler/translator/UnfoldShortCircuitAST.h"
 #include "compiler/translator/ValidateLimitations.h"
+#include "compiler/translator/ValidateOutputs.h"
 #include "compiler/translator/VariablePacker.h"
 #include "compiler/translator/depgraph/DependencyGraph.h"
 #include "compiler/translator/depgraph/DependencyGraphOutput.h"
 #include "compiler/translator/timing/RestrictFragmentShaderTiming.h"
 #include "compiler/translator/timing/RestrictVertexShaderTiming.h"
 #include "third_party/compiler/ArrayBoundsClamper.h"
+#include "angle_gl.h"
+#include "common/utilities.h"
 
-bool isWebGLBasedSpec(ShShaderSpec spec)
+bool IsWebGLBasedSpec(ShShaderSpec spec)
 {
      return spec == SH_WEBGL_SPEC || spec == SH_CSS_SHADERS_SPEC;
 }
 
+size_t GetGlobalMaxTokenSize(ShShaderSpec spec)
+{
+    // WebGL defines a max token legnth of 256, while ES2 leaves max token
+    // size undefined. ES3 defines a max size of 1024 characters.
+    if (IsWebGLBasedSpec(spec))
+    {
+        return 256;
+    }
+    else
+    {
+        return 1024;
+    }
+}
+
 namespace {
 class TScopedPoolAllocator
 {
@@ -78,9 +95,10 @@ TShHandleBase::~TShHandleBase()
     allocator.popAll();
 }
 
-TCompiler::TCompiler(ShShaderType type, ShShaderSpec spec)
+TCompiler::TCompiler(sh::GLenum type, ShShaderSpec spec, ShShaderOutput output)
     : shaderType(type),
       shaderSpec(spec),
+      outputType(output),
       maxUniformVectors(0),
       maxExpressionComplexity(0),
       maxCallStackDepth(0),
@@ -88,18 +106,16 @@ TCompiler::TCompiler(ShShaderType type, ShShaderSpec spec)
       clampingStrategy(SH_CLAMP_WITH_CLAMP_INTRINSIC),
       builtInFunctionEmulator(type)
 {
-    longNameMap = LongNameMap::GetInstance();
 }
 
 TCompiler::~TCompiler()
 {
-    ASSERT(longNameMap);
-    longNameMap->Release();
 }
 
 bool TCompiler::Init(const ShBuiltInResources& resources)
 {
-    maxUniformVectors = (shaderType == SH_VERTEX_SHADER) ?
+    shaderVersion = 100;
+    maxUniformVectors = (shaderType == GL_VERTEX_SHADER) ?
         resources.MaxVertexUniformVectors :
         resources.MaxFragmentUniformVectors;
     maxExpressionComplexity = resources.MaxExpressionComplexity;
@@ -132,7 +148,7 @@ bool TCompiler::compile(const char* const shaderStrings[],
         return true;
 
     // If compiling for WebGL, validate loop and indexing as well.
-    if (isWebGLBasedSpec(shaderSpec))
+    if (IsWebGLBasedSpec(shaderSpec))
         compileOptions |= SH_VALIDATE_LOOP_INDEXING;
 
     // First string is path of source file if flag is set. The actual source follows.
@@ -159,14 +175,24 @@ bool TCompiler::compile(const char* const shaderStrings[],
     bool success =
         (PaParseStrings(numStrings - firstSource, &shaderStrings[firstSource], NULL, &parseContext) == 0) &&
         (parseContext.treeRoot != NULL);
+
+    shaderVersion = parseContext.getShaderVersion();
+
     if (success)
     {
         TIntermNode* root = parseContext.treeRoot;
         success = intermediate.postProcess(root);
 
+        // Disallow expressions deemed too complex.
+        if (success && (compileOptions & SH_LIMIT_EXPRESSION_COMPLEXITY))
+            success = limitExpressionComplexity(root);
+
         if (success)
             success = detectCallDepth(root, infoSink, (compileOptions & SH_LIMIT_CALL_STACK_DEPTH) != 0);
 
+        if (success && shaderVersion == 300 && shaderType == GL_FRAGMENT_SHADER)
+            success = validateOutputs(root);
+
         if (success && (compileOptions & SH_VALIDATE_LOOP_INDEXING))
             success = validateLimitations(root);
 
@@ -178,7 +204,21 @@ bool TCompiler::compile(const char* const shaderStrings[],
 
         // Unroll for-loop markup needs to happen after validateLimitations pass.
         if (success && (compileOptions & SH_UNROLL_FOR_LOOP_WITH_INTEGER_INDEX))
-            ForLoopUnroll::MarkForLoopsWithIntegerIndicesForUnrolling(root);
+        {
+            ForLoopUnrollMarker marker(ForLoopUnrollMarker::kIntegerIndex);
+            root->traverse(&marker);
+        }
+        if (success && (compileOptions & SH_UNROLL_FOR_LOOP_WITH_SAMPLER_ARRAY_INDEX))
+        {
+            ForLoopUnrollMarker marker(ForLoopUnrollMarker::kSamplerArrayIndex);
+            root->traverse(&marker);
+            if (marker.samplerArrayIndexIsFloatLoopIndex())
+            {
+                infoSink.info.prefix(EPrefixError);
+                infoSink.info << "sampler array index is float loop index";
+                success = false;
+            }
+        }
 
         // Built-in function emulation needs to happen after validateLimitations pass.
         if (success && (compileOptions & SH_EMULATE_BUILT_IN_FUNCTIONS))
@@ -188,18 +228,7 @@ bool TCompiler::compile(const char* const shaderStrings[],
         if (success && (compileOptions & SH_CLAMP_INDIRECT_ARRAY_BOUNDS))
             arrayBoundsClamper.MarkIndirectArrayBoundsForClamping(root);
 
-        // Disallow expressions deemed too complex.
-        if (success && (compileOptions & SH_LIMIT_EXPRESSION_COMPLEXITY))
-            success = limitExpressionComplexity(root);
-
-        // Call mapLongVariableNames() before collectAttribsUniforms() so in
-        // collectAttribsUniforms() we already have the mapped symbol names and
-        // we could composite mapped and original variable names.
-        // Also, if we hash all the names, then no need to do this for long names.
-        if (success && (compileOptions & SH_MAP_LONG_VARIABLE_NAMES) && hashFunction == NULL)
-            mapLongVariableNames(root);
-
-        if (success && shaderType == SH_VERTEX_SHADER && (compileOptions & SH_INIT_GL_POSITION))
+        if (success && shaderType == GL_VERTEX_SHADER && (compileOptions & SH_INIT_GL_POSITION))
             initializeGLPosition(root);
 
         if (success && (compileOptions & SH_UNFOLD_SHORT_CIRCUIT))
@@ -221,11 +250,17 @@ bool TCompiler::compile(const char* const shaderStrings[],
                     infoSink.info << "too many uniforms";
                 }
             }
-            if (success && shaderType == SH_VERTEX_SHADER &&
+            if (success && shaderType == GL_VERTEX_SHADER &&
                 (compileOptions & SH_INIT_VARYINGS_WITHOUT_STATIC_USE))
                 initializeVaryingsWithoutStaticUse(root);
         }
 
+        if (success && (compileOptions & SH_SCALARIZE_VEC_AND_MAT_CONSTRUCTOR_ARGS))
+        {
+            ScalarizeVecAndMatConstructorArgs scalarizer;
+            root->traverse(&scalarizer);
+        }
+
         if (success && (compileOptions & SH_INTERMEDIATE_TREE))
             intermediate.outputTree(root);
 
@@ -235,40 +270,43 @@ bool TCompiler::compile(const char* const shaderStrings[],
 
     // Cleanup memory.
     intermediate.remove(parseContext.treeRoot);
-
+    SetGlobalParseContext(NULL);
     return success;
 }
 
 bool TCompiler::InitBuiltInSymbolTable(const ShBuiltInResources &resources)
 {
     compileResources = resources;
+    setResourceString();
 
     assert(symbolTable.isEmpty());
-    symbolTable.push();
+    symbolTable.push();   // COMMON_BUILTINS
+    symbolTable.push();   // ESSL1_BUILTINS
+    symbolTable.push();   // ESSL3_BUILTINS
 
     TPublicType integer;
     integer.type = EbtInt;
-    integer.size = 1;
-    integer.matrix = false;
+    integer.primarySize = 1;
+    integer.secondarySize = 1;
     integer.array = false;
 
     TPublicType floatingPoint;
     floatingPoint.type = EbtFloat;
-    floatingPoint.size = 1;
-    floatingPoint.matrix = false;
+    floatingPoint.primarySize = 1;
+    floatingPoint.secondarySize = 1;
     floatingPoint.array = false;
 
     TPublicType sampler;
-    sampler.size = 1;
-    sampler.matrix = false;
+    sampler.primarySize = 1;
+    sampler.secondarySize = 1;
     sampler.array = false;
 
     switch(shaderType)
     {
-      case SH_FRAGMENT_SHADER:
+      case GL_FRAGMENT_SHADER:
         symbolTable.setDefaultPrecision(integer, EbpMedium);
         break;
-      case SH_VERTEX_SHADER:
+      case GL_VERTEX_SHADER:
         symbolTable.setDefaultPrecision(integer, EbpHigh);
         symbolTable.setDefaultPrecision(floatingPoint, EbpHigh);
         break;
@@ -291,6 +329,34 @@ bool TCompiler::InitBuiltInSymbolTable(const ShBuiltInResources &resources)
     return true;
 }
 
+void TCompiler::setResourceString()
+{
+    std::ostringstream strstream;
+    strstream << ":MaxVertexAttribs:" << compileResources.MaxVertexAttribs
+              << ":MaxVertexUniformVectors:" << compileResources.MaxVertexUniformVectors
+              << ":MaxVaryingVectors:" << compileResources.MaxVaryingVectors
+              << ":MaxVertexTextureImageUnits:" << compileResources.MaxVertexTextureImageUnits
+              << ":MaxCombinedTextureImageUnits:" << compileResources.MaxCombinedTextureImageUnits
+              << ":MaxTextureImageUnits:" << compileResources.MaxTextureImageUnits
+              << ":MaxFragmentUniformVectors:" << compileResources.MaxFragmentUniformVectors
+              << ":MaxDrawBuffers:" << compileResources.MaxDrawBuffers
+              << ":OES_standard_derivatives:" << compileResources.OES_standard_derivatives
+              << ":OES_EGL_image_external:" << compileResources.OES_EGL_image_external
+              << ":ARB_texture_rectangle:" << compileResources.ARB_texture_rectangle
+              << ":EXT_draw_buffers:" << compileResources.EXT_draw_buffers
+              << ":FragmentPrecisionHigh:" << compileResources.FragmentPrecisionHigh
+              << ":MaxExpressionComplexity:" << compileResources.MaxExpressionComplexity
+              << ":MaxCallStackDepth:" << compileResources.MaxCallStackDepth
+              << ":EXT_frag_depth:" << compileResources.EXT_frag_depth
+              << ":EXT_shader_texture_lod:" << compileResources.EXT_shader_texture_lod
+              << ":MaxVertexOutputVectors:" << compileResources.MaxVertexOutputVectors
+              << ":MaxFragmentInputVectors:" << compileResources.MaxFragmentInputVectors
+              << ":MinProgramTexelOffset:" << compileResources.MinProgramTexelOffset
+              << ":MaxProgramTexelOffset:" << compileResources.MaxProgramTexelOffset;
+
+    builtInResourcesString = strstream.str();
+}
+
 void TCompiler::clearResults()
 {
     arrayBoundsClamper.Cleanup();
@@ -298,9 +364,13 @@ void TCompiler::clearResults()
     infoSink.obj.erase();
     infoSink.debug.erase();
 
-    attribs.clear();
+    attributes.clear();
+    outputVariables.clear();
     uniforms.clear();
+    expandedUniforms.clear();
     varyings.clear();
+    expandedVaryings.clear();
+    interfaceBlocks.clear();
 
     builtInFunctionEmulator.Cleanup();
 
@@ -333,6 +403,13 @@ bool TCompiler::detectCallDepth(TIntermNode* root, TInfoSink& infoSink, bool lim
     }
 }
 
+bool TCompiler::validateOutputs(TIntermNode* root)
+{
+    ValidateOutputs validateOutputs(infoSink.info, compileResources.MaxDrawBuffers);
+    root->traverse(&validateOutputs);
+    return (validateOutputs.numErrors() == 0);
+}
+
 void TCompiler::rewriteCSSShader(TIntermNode* root)
 {
     RenameFunction renamer("main(", "css_main(");
@@ -354,20 +431,20 @@ bool TCompiler::enforceTimingRestrictions(TIntermNode* root, bool outputGraph)
         return false;
     }
 
-    if (shaderType == SH_FRAGMENT_SHADER)
+    if (shaderType == GL_FRAGMENT_SHADER)
     {
         TDependencyGraph graph(root);
 
         // Output any errors first.
         bool success = enforceFragmentShaderTimingRestrictions(graph);
-        
+
         // Then, output the dependency graph.
         if (outputGraph)
         {
             TDependencyGraphOutput output(infoSink.info);
             output.outputAllSpanningTrees(graph);
         }
-        
+
         return success;
     }
     else
@@ -378,8 +455,15 @@ bool TCompiler::enforceTimingRestrictions(TIntermNode* root, bool outputGraph)
 
 bool TCompiler::limitExpressionComplexity(TIntermNode* root)
 {
-    TIntermTraverser traverser;
+    TMaxDepthTraverser traverser(maxExpressionComplexity+1);
     root->traverse(&traverser);
+
+    if (traverser.getMaxDepth() > maxExpressionComplexity)
+    {
+        infoSink.info << "Expression too complex.";
+        return false;
+    }
+
     TDependencyGraph graph(root);
 
     for (TFunctionCallVector::const_iterator iter = graph.beginUserDefinedFunctionCalls();
@@ -391,11 +475,6 @@ bool TCompiler::limitExpressionComplexity(TIntermNode* root)
         samplerSymbol->traverse(&graphTraverser);
     }
 
-    if (traverser.getMaxDepth() > maxExpressionComplexity)
-    {
-        infoSink.info << "Expression too complex.";
-        return false;
-    }
     return true;
 }
 
@@ -415,14 +494,24 @@ bool TCompiler::enforceVertexShaderTimingRestrictions(TIntermNode* root)
 
 void TCompiler::collectVariables(TIntermNode* root)
 {
-    CollectVariables collect(attribs, uniforms, varyings, hashFunction);
+    CollectVariables collect(&attributes,
+                             &outputVariables,
+                             &uniforms,
+                             &varyings,
+                             &interfaceBlocks,
+                             hashFunction);
     root->traverse(&collect);
+
+    // For backwards compatiblity with ShGetVariableInfo, expand struct
+    // uniforms and varyings into separate variables for each field.
+    ExpandVariables(uniforms, &expandedUniforms);
+    ExpandVariables(varyings, &expandedVaryings);
 }
 
 bool TCompiler::enforcePackingRestrictions()
 {
     VariablePacker packer;
-    return packer.CheckVariablesWithinPackingLimits(maxUniformVectors, uniforms);
+    return packer.CheckVariablesWithinPackingLimits(maxUniformVectors, expandedUniforms);
 }
 
 void TCompiler::initializeGLPosition(TIntermNode* root)
@@ -440,45 +529,16 @@ void TCompiler::initializeVaryingsWithoutStaticUse(TIntermNode* root)
     InitializeVariables::InitVariableInfoList variables;
     for (size_t ii = 0; ii < varyings.size(); ++ii)
     {
-        const TVariableInfo& varying = varyings[ii];
+        const sh::Varying& varying = varyings[ii];
         if (varying.staticUse)
             continue;
-        unsigned char size = 0;
-        bool matrix = false;
-        switch (varying.type)
-        {
-          case SH_FLOAT:
-            size = 1;
-            break;
-          case SH_FLOAT_VEC2:
-            size = 2;
-            break;
-          case SH_FLOAT_VEC3:
-            size = 3;
-            break;
-          case SH_FLOAT_VEC4:
-            size = 4;
-            break;
-          case SH_FLOAT_MAT2:
-            size = 2;
-            matrix = true;
-            break;
-          case SH_FLOAT_MAT3:
-            size = 3;
-            matrix = true;
-            break;
-          case SH_FLOAT_MAT4:
-            size = 4;
-            matrix = true;
-            break;
-          default:
-            ASSERT(false);
-        }
-        TType type(EbtFloat, EbpUndefined, EvqVaryingOut, size, matrix, varying.isArray);
+        unsigned char primarySize = static_cast<unsigned char>(gl::VariableColumnCount(varying.type));
+        unsigned char secondarySize = static_cast<unsigned char>(gl::VariableRowCount(varying.type));
+        TType type(EbtFloat, EbpUndefined, EvqVaryingOut, primarySize, secondarySize, varying.isArray());
         TString name = varying.name.c_str();
-        if (varying.isArray)
+        if (varying.isArray())
         {
-            type.setArraySize(varying.size);
+            type.setArraySize(varying.arraySize);
             name = name.substr(0, name.find_first_of('['));
         }
 
@@ -489,18 +549,6 @@ void TCompiler::initializeVaryingsWithoutStaticUse(TIntermNode* root)
     root->traverse(&initializer);
 }
 
-void TCompiler::mapLongVariableNames(TIntermNode* root)
-{
-    ASSERT(longNameMap);
-    MapLongVariableNames map(longNameMap);
-    root->traverse(&map);
-}
-
-int TCompiler::getMappedNameMaxLength() const
-{
-    return MAX_SHORTENED_IDENTIFIER_SIZE + 1;
-}
-
 const TExtensionBehavior& TCompiler::getExtensionBehavior() const
 {
     return extensionBehavior;