webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 0 insertions, 406 deletions

diff --git a/Source/ThirdParty/ANGLE/src/compiler/BuiltInFunctionEmulator.cpp b/Source/ThirdParty/ANGLE/src/compiler/BuiltInFunctionEmulator.cpp
deleted file mode 100644
index 1c4b25f13..000000000
--- a/Source/ThirdParty/ANGLE/src/compiler/BuiltInFunctionEmulator.cpp
+++ /dev/null
@@ -1,406 +0,0 @@
-//
-// Copyright (c) 2002-2011 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/BuiltInFunctionEmulator.h"
-
-#include "compiler/SymbolTable.h"
-
-namespace {
-
-// we use macros here instead of function definitions to work around more GLSL
-// compiler bugs, in particular on NVIDIA hardware on Mac OSX. Macros are
-// problematic because if the argument has side-effects they will be repeatedly
-// evaluated. This is unlikely to show up in real shaders, but is something to
-// consider.
-const char* kFunctionEmulationVertexSource[] = {
-    "#error no emulation for cos(float)",
-    "#error no emulation for cos(vec2)",
-    "#error no emulation for cos(vec3)",
-    "#error no emulation for cos(vec4)",
-
-    "#define webgl_distance_emu(x, y) ((x) >= (y) ? (x) - (y) : (y) - (x))",
-    "#error no emulation for distance(vec2, vec2)",
-    "#error no emulation for distance(vec3, vec3)",
-    "#error no emulation for distance(vec4, vec4)",
-
-    "#define webgl_dot_emu(x, y) ((x) * (y))",
-    "#error no emulation for dot(vec2, vec2)",
-    "#error no emulation for dot(vec3, vec3)",
-    "#error no emulation for dot(vec4, vec4)",
-
-    "#define webgl_length_emu(x) ((x) >= 0.0 ? (x) : -(x))",
-    "#error no emulation for length(vec2)",
-    "#error no emulation for length(vec3)",
-    "#error no emulation for length(vec4)",
-
-    "#define webgl_normalize_emu(x) ((x) == 0.0 ? 0.0 : ((x) > 0.0 ? 1.0 : -1.0))",
-    "#error no emulation for normalize(vec2)",
-    "#error no emulation for normalize(vec3)",
-    "#error no emulation for normalize(vec4)",
-
-    "#define webgl_reflect_emu(I, N) ((I) - 2.0 * (N) * (I) * (N))",
-    "#error no emulation for reflect(vec2, vec2)",
-    "#error no emulation for reflect(vec3, vec3)",
-    "#error no emulation for reflect(vec4, vec4)"
-};
-
-const char* kFunctionEmulationFragmentSource[] = {
-    "webgl_emu_precision float webgl_cos_emu(webgl_emu_precision float a) { return cos(a); }",
-    "webgl_emu_precision vec2 webgl_cos_emu(webgl_emu_precision vec2 a) { return cos(a); }",
-    "webgl_emu_precision vec3 webgl_cos_emu(webgl_emu_precision vec3 a) { return cos(a); }",
-    "webgl_emu_precision vec4 webgl_cos_emu(webgl_emu_precision vec4 a) { return cos(a); }",
-
-    "#define webgl_distance_emu(x, y) ((x) >= (y) ? (x) - (y) : (y) - (x))",
-    "#error no emulation for distance(vec2, vec2)",
-    "#error no emulation for distance(vec3, vec3)",
-    "#error no emulation for distance(vec4, vec4)",
-
-    "#define webgl_dot_emu(x, y) ((x) * (y))",
-    "#error no emulation for dot(vec2, vec2)",
-    "#error no emulation for dot(vec3, vec3)",
-    "#error no emulation for dot(vec4, vec4)",
-
-    "#define webgl_length_emu(x) ((x) >= 0.0 ? (x) : -(x))",
-    "#error no emulation for length(vec2)",
-    "#error no emulation for length(vec3)",
-    "#error no emulation for length(vec4)",
-
-    "#define webgl_normalize_emu(x) ((x) == 0.0 ? 0.0 : ((x) > 0.0 ? 1.0 : -1.0))",
-    "#error no emulation for normalize(vec2)",
-    "#error no emulation for normalize(vec3)",
-    "#error no emulation for normalize(vec4)",
-
-    "#define webgl_reflect_emu(I, N) ((I) - 2.0 * (N) * (I) * (N))",
-    "#error no emulation for reflect(vec2, vec2)",
-    "#error no emulation for reflect(vec3, vec3)",
-    "#error no emulation for reflect(vec4, vec4)"
-};
-
-const bool kFunctionEmulationVertexMask[] = {
-#if defined(__APPLE__)
-    // Work around ATI driver bugs in Mac.
-    false, // TFunctionCos1
-    false, // TFunctionCos2
-    false, // TFunctionCos3
-    false, // TFunctionCos4
-    true,  // TFunctionDistance1_1
-    false, // TFunctionDistance2_2
-    false, // TFunctionDistance3_3
-    false, // TFunctionDistance4_4
-    true,  // TFunctionDot1_1
-    false, // TFunctionDot2_2
-    false, // TFunctionDot3_3
-    false, // TFunctionDot4_4
-    true,  // TFunctionLength1
-    false, // TFunctionLength2
-    false, // TFunctionLength3
-    false, // TFunctionLength4
-    true,  // TFunctionNormalize1
-    false, // TFunctionNormalize2
-    false, // TFunctionNormalize3
-    false, // TFunctionNormalize4
-    true,  // TFunctionReflect1_1
-    false, // TFunctionReflect2_2
-    false, // TFunctionReflect3_3
-    false, // TFunctionReflect4_4
-#else
-    // Work around D3D driver bug in Win.
-    false, // TFunctionCos1
-    false, // TFunctionCos2
-    false, // TFunctionCos3
-    false, // TFunctionCos4
-    false, // TFunctionDistance1_1
-    false, // TFunctionDistance2_2
-    false, // TFunctionDistance3_3
-    false, // TFunctionDistance4_4
-    false, // TFunctionDot1_1
-    false, // TFunctionDot2_2
-    false, // TFunctionDot3_3
-    false, // TFunctionDot4_4
-    false, // TFunctionLength1
-    false, // TFunctionLength2
-    false, // TFunctionLength3
-    false, // TFunctionLength4
-    false, // TFunctionNormalize1
-    false, // TFunctionNormalize2
-    false, // TFunctionNormalize3
-    false, // TFunctionNormalize4
-    false, // TFunctionReflect1_1
-    false, // TFunctionReflect2_2
-    false, // TFunctionReflect3_3
-    false, // TFunctionReflect4_4
-#endif
-    false  // TFunctionUnknown
-};
-
-const bool kFunctionEmulationFragmentMask[] = {
-#if defined(__APPLE__)
-    // Work around ATI driver bugs in Mac.
-    true,  // TFunctionCos1
-    true,  // TFunctionCos2
-    true,  // TFunctionCos3
-    true,  // TFunctionCos4
-    true,  // TFunctionDistance1_1
-    false, // TFunctionDistance2_2
-    false, // TFunctionDistance3_3
-    false, // TFunctionDistance4_4
-    true,  // TFunctionDot1_1
-    false, // TFunctionDot2_2
-    false, // TFunctionDot3_3
-    false, // TFunctionDot4_4
-    true,  // TFunctionLength1
-    false, // TFunctionLength2
-    false, // TFunctionLength3
-    false, // TFunctionLength4
-    true,  // TFunctionNormalize1
-    false, // TFunctionNormalize2
-    false, // TFunctionNormalize3
-    false, // TFunctionNormalize4
-    true,  // TFunctionReflect1_1
-    false, // TFunctionReflect2_2
-    false, // TFunctionReflect3_3
-    false, // TFunctionReflect4_4
-#else
-    // Work around D3D driver bug in Win.
-    false, // TFunctionCos1
-    false, // TFunctionCos2
-    false, // TFunctionCos3
-    false, // TFunctionCos4
-    false, // TFunctionDistance1_1
-    false, // TFunctionDistance2_2
-    false, // TFunctionDistance3_3
-    false, // TFunctionDistance4_4
-    false, // TFunctionDot1_1
-    false, // TFunctionDot2_2
-    false, // TFunctionDot3_3
-    false, // TFunctionDot4_4
-    false, // TFunctionLength1
-    false, // TFunctionLength2
-    false, // TFunctionLength3
-    false, // TFunctionLength4
-    false, // TFunctionNormalize1
-    false, // TFunctionNormalize2
-    false, // TFunctionNormalize3
-    false, // TFunctionNormalize4
-    false, // TFunctionReflect1_1
-    false, // TFunctionReflect2_2
-    false, // TFunctionReflect3_3
-    false, // TFunctionReflect4_4
-#endif
-    false  // TFunctionUnknown
-};
-
-class BuiltInFunctionEmulationMarker : public TIntermTraverser {
-public:
-    BuiltInFunctionEmulationMarker(BuiltInFunctionEmulator& emulator)
-        : mEmulator(emulator)
-    {
-    }
-
-    virtual bool visitUnary(Visit visit, TIntermUnary* node)
-    {
-        if (visit == PreVisit) {
-            bool needToEmulate = mEmulator.SetFunctionCalled(
-                node->getOp(), node->getOperand()->getType());
-            if (needToEmulate)
-                node->setUseEmulatedFunction();
-        }
-        return true;
-    }
-
-    virtual bool visitAggregate(Visit visit, TIntermAggregate* node)
-    {
-        if (visit == PreVisit) {
-            // Here we handle all the built-in functions instead of the ones we
-            // currently identified as problematic.
-            switch (node->getOp()) {
-                case EOpLessThan:
-                case EOpGreaterThan:
-                case EOpLessThanEqual:
-                case EOpGreaterThanEqual:
-                case EOpVectorEqual:
-                case EOpVectorNotEqual:
-                case EOpMod:
-                case EOpPow:
-                case EOpAtan:
-                case EOpMin:
-                case EOpMax:
-                case EOpClamp:
-                case EOpMix:
-                case EOpStep:
-                case EOpSmoothStep:
-                case EOpDistance:
-                case EOpDot:
-                case EOpCross:
-                case EOpFaceForward:
-                case EOpReflect:
-                case EOpRefract:
-                case EOpMul:
-                    break;
-                default:
-                    return true;
-            };
-            const TIntermSequence& sequence = node->getSequence();
-            // Right now we only handle built-in functions with two parameters.
-            if (sequence.size() != 2)
-                return true;
-            TIntermTyped* param1 = sequence[0]->getAsTyped();
-            TIntermTyped* param2 = sequence[1]->getAsTyped();
-            if (!param1 || !param2)
-                return true;
-            bool needToEmulate = mEmulator.SetFunctionCalled(
-                node->getOp(), param1->getType(), param2->getType());
-            if (needToEmulate)
-                node->setUseEmulatedFunction();
-        }
-        return true;
-    }
-
-private:
-    BuiltInFunctionEmulator& mEmulator;
-};
-
-}  // anonymous namepsace
-
-BuiltInFunctionEmulator::BuiltInFunctionEmulator(ShShaderType shaderType)
-{
-    if (shaderType == SH_FRAGMENT_SHADER) {
-        mFunctionMask = kFunctionEmulationFragmentMask;
-        mFunctionSource = kFunctionEmulationFragmentSource;
-    } else {
-        mFunctionMask = kFunctionEmulationVertexMask;
-        mFunctionSource = kFunctionEmulationVertexSource;
-    }
-}
-
-bool BuiltInFunctionEmulator::SetFunctionCalled(
-    TOperator op, const TType& param)
-{
-    TBuiltInFunction function = IdentifyFunction(op, param);
-    return SetFunctionCalled(function);
-}
-
-bool BuiltInFunctionEmulator::SetFunctionCalled(
-    TOperator op, const TType& param1, const TType& param2)
-{
-    TBuiltInFunction function = IdentifyFunction(op, param1, param2);
-    return SetFunctionCalled(function);
-}
-
-bool BuiltInFunctionEmulator::SetFunctionCalled(
-    BuiltInFunctionEmulator::TBuiltInFunction function) {
-    if (function == TFunctionUnknown || mFunctionMask[function] == false)
-        return false;
-    for (size_t i = 0; i < mFunctions.size(); ++i) {
-        if (mFunctions[i] == function)
-            return true;
-    }
-    mFunctions.push_back(function);
-    return true;
-}
-
-void BuiltInFunctionEmulator::OutputEmulatedFunctionDefinition(
-    TInfoSinkBase& out, bool withPrecision) const
-{
-    if (mFunctions.size() == 0)
-        return;
-    out << "// BEGIN: Generated code for built-in function emulation\n\n";
-    if (withPrecision) {
-        out << "#if defined(GL_FRAGMENT_PRECISION_HIGH)\n"
-            << "#define webgl_emu_precision highp\n"
-            << "#else\n"
-            << "#define webgl_emu_precision mediump\n"
-            << "#endif\n\n";
-    } else {
-        out << "#define webgl_emu_precision\n\n";
-    }
-    for (size_t i = 0; i < mFunctions.size(); ++i) {
-        out << mFunctionSource[mFunctions[i]] << "\n\n";
-    }
-    out << "// END: Generated code for built-in function emulation\n\n";
-}
-
-BuiltInFunctionEmulator::TBuiltInFunction
-BuiltInFunctionEmulator::IdentifyFunction(
-    TOperator op, const TType& param)
-{
-    if (param.getNominalSize() > 4)
-        return TFunctionUnknown;
-    unsigned int function = TFunctionUnknown;
-    switch (op) {
-        case EOpCos:
-            function = TFunctionCos1;
-            break;
-        case EOpLength:
-            function = TFunctionLength1;
-            break;
-        case EOpNormalize:
-            function = TFunctionNormalize1;
-            break;
-        default:
-            break;
-    }
-    if (function == TFunctionUnknown)
-        return TFunctionUnknown;
-    if (param.isVector())
-        function += param.getNominalSize() - 1;
-    return static_cast<TBuiltInFunction>(function);
-}
-
-BuiltInFunctionEmulator::TBuiltInFunction
-BuiltInFunctionEmulator::IdentifyFunction(
-    TOperator op, const TType& param1, const TType& param2)
-{
-    // Right now for all the emulated functions with two parameters, the two
-    // parameters have the same type.
-    if (param1.isVector() != param2.isVector() ||
-        param1.getNominalSize() != param2.getNominalSize() ||
-        param1.getNominalSize() > 4)
-        return TFunctionUnknown;
-
-    unsigned int function = TFunctionUnknown;
-    switch (op) {
-        case EOpDistance:
-            function = TFunctionDistance1_1;
-            break;
-        case EOpDot:
-            function = TFunctionDot1_1;
-            break;
-        case EOpReflect:
-            function = TFunctionReflect1_1;
-            break;
-        default:
-            break;
-    }
-    if (function == TFunctionUnknown)
-        return TFunctionUnknown;
-    if (param1.isVector())
-        function += param1.getNominalSize() - 1;
-    return static_cast<TBuiltInFunction>(function);
-}
-
-void BuiltInFunctionEmulator::MarkBuiltInFunctionsForEmulation(
-    TIntermNode* root)
-{
-    ASSERT(root);
-
-    BuiltInFunctionEmulationMarker marker(*this);
-    root->traverse(&marker);
-}
-
-void BuiltInFunctionEmulator::Cleanup()
-{
-    mFunctions.clear();
-}
-
-//static
-TString BuiltInFunctionEmulator::GetEmulatedFunctionName(
-    const TString& name)
-{
-    ASSERT(name[name.length() - 1] == '(');
-    return "webgl_" + name.substr(0, name.length() - 1) + "_emu(";
-}
-