Add m-esr52 at 52.6.0

1 files changed, 620 insertions, 0 deletions

diff --git a/gfx/angle/src/compiler/translator/util.cpp b/gfx/angle/src/compiler/translator/util.cpp
new file mode 100755
index 000000000..89f237ceb
--- /dev/null
+++ b/gfx/angle/src/compiler/translator/util.cpp
@@ -0,0 +1,620 @@
+//
+// Copyright (c) 2010 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/util.h"
+
+#include <limits>
+
+#include "compiler/preprocessor/numeric_lex.h"
+#include "compiler/translator/SymbolTable.h"
+#include "common/utilities.h"
+
+bool strtof_clamp(const std::string &str, float *value)
+{
+    bool success = pp::numeric_lex_float(str, value);
+    if (!success)
+        *value = std::numeric_limits<float>::max();
+    return success;
+}
+
+bool atoi_clamp(const char *str, unsigned int *value)
+{
+    bool success = pp::numeric_lex_int(str, value);
+    if (!success)
+        *value = std::numeric_limits<unsigned int>::max();
+    return success;
+}
+
+namespace sh
+{
+
+GLenum GLVariableType(const TType &type)
+{
+    if (type.getBasicType() == EbtFloat)
+    {
+        if (type.isScalar())
+        {
+            return GL_FLOAT;
+        }
+        else if (type.isVector())
+        {
+            switch (type.getNominalSize())
+            {
+              case 2: return GL_FLOAT_VEC2;
+              case 3: return GL_FLOAT_VEC3;
+              case 4: return GL_FLOAT_VEC4;
+              default: UNREACHABLE();
+            }
+        }
+        else if (type.isMatrix())
+        {
+            switch (type.getCols())
+            {
+              case 2:
+                switch (type.getRows())
+                {
+                  case 2: return GL_FLOAT_MAT2;
+                  case 3: return GL_FLOAT_MAT2x3;
+                  case 4: return GL_FLOAT_MAT2x4;
+                  default: UNREACHABLE();
+                }
+
+              case 3:
+                switch (type.getRows())
+                {
+                  case 2: return GL_FLOAT_MAT3x2;
+                  case 3: return GL_FLOAT_MAT3;
+                  case 4: return GL_FLOAT_MAT3x4;
+                  default: UNREACHABLE();
+                }
+
+              case 4:
+                switch (type.getRows())
+                {
+                  case 2: return GL_FLOAT_MAT4x2;
+                  case 3: return GL_FLOAT_MAT4x3;
+                  case 4: return GL_FLOAT_MAT4;
+                  default: UNREACHABLE();
+                }
+
+              default: UNREACHABLE();
+            }
+        }
+        else UNREACHABLE();
+    }
+    else if (type.getBasicType() == EbtInt)
+    {
+        if (type.isScalar())
+        {
+            return GL_INT;
+        }
+        else if (type.isVector())
+        {
+            switch (type.getNominalSize())
+            {
+              case 2: return GL_INT_VEC2;
+              case 3: return GL_INT_VEC3;
+              case 4: return GL_INT_VEC4;
+              default: UNREACHABLE();
+            }
+        }
+        else UNREACHABLE();
+    }
+    else if (type.getBasicType() == EbtUInt)
+    {
+        if (type.isScalar())
+        {
+            return GL_UNSIGNED_INT;
+        }
+        else if (type.isVector())
+        {
+            switch (type.getNominalSize())
+            {
+              case 2: return GL_UNSIGNED_INT_VEC2;
+              case 3: return GL_UNSIGNED_INT_VEC3;
+              case 4: return GL_UNSIGNED_INT_VEC4;
+              default: UNREACHABLE();
+            }
+        }
+        else UNREACHABLE();
+    }
+    else if (type.getBasicType() == EbtBool)
+    {
+        if (type.isScalar())
+        {
+            return GL_BOOL;
+        }
+        else if (type.isVector())
+        {
+            switch (type.getNominalSize())
+            {
+              case 2: return GL_BOOL_VEC2;
+              case 3: return GL_BOOL_VEC3;
+              case 4: return GL_BOOL_VEC4;
+              default: UNREACHABLE();
+            }
+        }
+        else UNREACHABLE();
+    }
+
+    switch (type.getBasicType())
+    {
+      case EbtSampler2D:            return GL_SAMPLER_2D;
+      case EbtSampler3D:            return GL_SAMPLER_3D;
+      case EbtSamplerCube:          return GL_SAMPLER_CUBE;
+      case EbtSamplerExternalOES:   return GL_SAMPLER_EXTERNAL_OES;
+      case EbtSampler2DRect:        return GL_SAMPLER_2D_RECT_ARB;
+      case EbtSampler2DArray:       return GL_SAMPLER_2D_ARRAY;
+      case EbtISampler2D:           return GL_INT_SAMPLER_2D;
+      case EbtISampler3D:           return GL_INT_SAMPLER_3D;
+      case EbtISamplerCube:         return GL_INT_SAMPLER_CUBE;
+      case EbtISampler2DArray:      return GL_INT_SAMPLER_2D_ARRAY;
+      case EbtUSampler2D:           return GL_UNSIGNED_INT_SAMPLER_2D;
+      case EbtUSampler3D:           return GL_UNSIGNED_INT_SAMPLER_3D;
+      case EbtUSamplerCube:         return GL_UNSIGNED_INT_SAMPLER_CUBE;
+      case EbtUSampler2DArray:      return GL_UNSIGNED_INT_SAMPLER_2D_ARRAY;
+      case EbtSampler2DShadow:      return GL_SAMPLER_2D_SHADOW;
+      case EbtSamplerCubeShadow:    return GL_SAMPLER_CUBE_SHADOW;
+      case EbtSampler2DArrayShadow: return GL_SAMPLER_2D_ARRAY_SHADOW;
+      case EbtImage2D:
+          return GL_IMAGE_2D;
+      case EbtIImage2D:
+          return GL_INT_IMAGE_2D;
+      case EbtUImage2D:
+          return GL_UNSIGNED_INT_IMAGE_2D;
+      case EbtImage2DArray:
+          return GL_IMAGE_2D_ARRAY;
+      case EbtIImage2DArray:
+          return GL_INT_IMAGE_2D_ARRAY;
+      case EbtUImage2DArray:
+          return GL_UNSIGNED_INT_IMAGE_2D_ARRAY;
+      case EbtImage3D:
+          return GL_IMAGE_3D;
+      case EbtIImage3D:
+          return GL_INT_IMAGE_3D;
+      case EbtUImage3D:
+          return GL_UNSIGNED_INT_IMAGE_3D;
+      case EbtImageCube:
+          return GL_IMAGE_CUBE;
+      case EbtIImageCube:
+          return GL_INT_IMAGE_CUBE;
+      case EbtUImageCube:
+          return GL_UNSIGNED_INT_IMAGE_CUBE;
+      default: UNREACHABLE();
+    }
+
+    return GL_NONE;
+}
+
+GLenum GLVariablePrecision(const TType &type)
+{
+    if (type.getBasicType() == EbtFloat)
+    {
+        switch (type.getPrecision())
+        {
+          case EbpHigh:
+            return GL_HIGH_FLOAT;
+          case EbpMedium:
+            return GL_MEDIUM_FLOAT;
+          case EbpLow:
+            return GL_LOW_FLOAT;
+          case EbpUndefined:
+          // Should be defined as the default precision by the parser
+          default:
+            UNREACHABLE();
+        }
+    }
+    else if (type.getBasicType() == EbtInt || type.getBasicType() == EbtUInt)
+    {
+        switch (type.getPrecision())
+        {
+          case EbpHigh:
+            return GL_HIGH_INT;
+          case EbpMedium:
+            return GL_MEDIUM_INT;
+          case EbpLow:
+            return GL_LOW_INT;
+          case EbpUndefined:
+          // Should be defined as the default precision by the parser
+          default:
+            UNREACHABLE();
+        }
+    }
+
+    // Other types (boolean, sampler) don't have a precision
+    return GL_NONE;
+}
+
+TString ArrayString(const TType &type)
+{
+    if (!type.isArray())
+    {
+        return "";
+    }
+
+    return "[" + str(type.getArraySize()) + "]";
+}
+
+bool IsVaryingOut(TQualifier qualifier)
+{
+    switch (qualifier)
+    {
+      case EvqVaryingOut:
+      case EvqSmoothOut:
+      case EvqFlatOut:
+      case EvqCentroidOut:
+      case EvqVertexOut:
+        return true;
+
+      default: break;
+    }
+
+    return false;
+}
+
+bool IsVaryingIn(TQualifier qualifier)
+{
+    switch (qualifier)
+    {
+      case EvqVaryingIn:
+      case EvqSmoothIn:
+      case EvqFlatIn:
+      case EvqCentroidIn:
+      case EvqFragmentIn:
+        return true;
+
+      default: break;
+    }
+
+    return false;
+}
+
+bool IsVarying(TQualifier qualifier)
+{
+    return IsVaryingIn(qualifier) || IsVaryingOut(qualifier);
+}
+
+InterpolationType GetInterpolationType(TQualifier qualifier)
+{
+    switch (qualifier)
+    {
+      case EvqFlatIn:
+      case EvqFlatOut:
+        return INTERPOLATION_FLAT;
+
+      case EvqSmoothIn:
+      case EvqSmoothOut:
+      case EvqVertexOut:
+      case EvqFragmentIn:
+      case EvqVaryingIn:
+      case EvqVaryingOut:
+        return INTERPOLATION_SMOOTH;
+
+      case EvqCentroidIn:
+      case EvqCentroidOut:
+        return INTERPOLATION_CENTROID;
+
+      default: UNREACHABLE();
+        return INTERPOLATION_SMOOTH;
+    }
+}
+
+TType GetShaderVariableBasicType(const sh::ShaderVariable &var)
+{
+    switch (var.type)
+    {
+        case GL_BOOL:
+            return TType(EbtBool);
+        case GL_BOOL_VEC2:
+            return TType(EbtBool, 2);
+        case GL_BOOL_VEC3:
+            return TType(EbtBool, 3);
+        case GL_BOOL_VEC4:
+            return TType(EbtBool, 4);
+        case GL_FLOAT:
+            return TType(EbtFloat);
+        case GL_FLOAT_VEC2:
+            return TType(EbtFloat, 2);
+        case GL_FLOAT_VEC3:
+            return TType(EbtFloat, 3);
+        case GL_FLOAT_VEC4:
+            return TType(EbtFloat, 4);
+        case GL_FLOAT_MAT2:
+            return TType(EbtFloat, 2, 2);
+        case GL_FLOAT_MAT3:
+            return TType(EbtFloat, 3, 3);
+        case GL_FLOAT_MAT4:
+            return TType(EbtFloat, 4, 4);
+        case GL_FLOAT_MAT2x3:
+            return TType(EbtFloat, 2, 3);
+        case GL_FLOAT_MAT2x4:
+            return TType(EbtFloat, 2, 4);
+        case GL_FLOAT_MAT3x2:
+            return TType(EbtFloat, 3, 2);
+        case GL_FLOAT_MAT3x4:
+            return TType(EbtFloat, 3, 4);
+        case GL_FLOAT_MAT4x2:
+            return TType(EbtFloat, 4, 2);
+        case GL_FLOAT_MAT4x3:
+            return TType(EbtFloat, 4, 3);
+        case GL_INT:
+            return TType(EbtInt);
+        case GL_INT_VEC2:
+            return TType(EbtInt, 2);
+        case GL_INT_VEC3:
+            return TType(EbtInt, 3);
+        case GL_INT_VEC4:
+            return TType(EbtInt, 4);
+        case GL_UNSIGNED_INT:
+            return TType(EbtUInt);
+        case GL_UNSIGNED_INT_VEC2:
+            return TType(EbtUInt, 2);
+        case GL_UNSIGNED_INT_VEC3:
+            return TType(EbtUInt, 3);
+        case GL_UNSIGNED_INT_VEC4:
+            return TType(EbtUInt, 4);
+        default:
+            UNREACHABLE();
+            return TType();
+    }
+}
+
+TOperator TypeToConstructorOperator(const TType &type)
+{
+    switch (type.getBasicType())
+    {
+        case EbtFloat:
+            if (type.isMatrix())
+            {
+                switch (type.getCols())
+                {
+                    case 2:
+                        switch (type.getRows())
+                        {
+                            case 2:
+                                return EOpConstructMat2;
+                            case 3:
+                                return EOpConstructMat2x3;
+                            case 4:
+                                return EOpConstructMat2x4;
+                            default:
+                                break;
+                        }
+                        break;
+
+                    case 3:
+                        switch (type.getRows())
+                        {
+                            case 2:
+                                return EOpConstructMat3x2;
+                            case 3:
+                                return EOpConstructMat3;
+                            case 4:
+                                return EOpConstructMat3x4;
+                            default:
+                                break;
+                        }
+                        break;
+
+                    case 4:
+                        switch (type.getRows())
+                        {
+                            case 2:
+                                return EOpConstructMat4x2;
+                            case 3:
+                                return EOpConstructMat4x3;
+                            case 4:
+                                return EOpConstructMat4;
+                            default:
+                                break;
+                        }
+                        break;
+                }
+            }
+            else
+            {
+                switch (type.getNominalSize())
+                {
+                    case 1:
+                        return EOpConstructFloat;
+                    case 2:
+                        return EOpConstructVec2;
+                    case 3:
+                        return EOpConstructVec3;
+                    case 4:
+                        return EOpConstructVec4;
+                    default:
+                        break;
+                }
+            }
+            break;
+
+        case EbtInt:
+            switch (type.getNominalSize())
+            {
+                case 1:
+                    return EOpConstructInt;
+                case 2:
+                    return EOpConstructIVec2;
+                case 3:
+                    return EOpConstructIVec3;
+                case 4:
+                    return EOpConstructIVec4;
+                default:
+                    break;
+            }
+            break;
+
+        case EbtUInt:
+            switch (type.getNominalSize())
+            {
+                case 1:
+                    return EOpConstructUInt;
+                case 2:
+                    return EOpConstructUVec2;
+                case 3:
+                    return EOpConstructUVec3;
+                case 4:
+                    return EOpConstructUVec4;
+                default:
+                    break;
+            }
+            break;
+
+        case EbtBool:
+            switch (type.getNominalSize())
+            {
+                case 1:
+                    return EOpConstructBool;
+                case 2:
+                    return EOpConstructBVec2;
+                case 3:
+                    return EOpConstructBVec3;
+                case 4:
+                    return EOpConstructBVec4;
+                default:
+                    break;
+            }
+            break;
+
+        case EbtStruct:
+            return EOpConstructStruct;
+
+        default:
+            break;
+    }
+
+    return EOpNull;
+}
+
+GetVariableTraverser::GetVariableTraverser(const TSymbolTable &symbolTable)
+    : mSymbolTable(symbolTable)
+{
+}
+
+template void GetVariableTraverser::setTypeSpecificInfo(
+    const TType &type, const TString& name, InterfaceBlockField *variable);
+template void GetVariableTraverser::setTypeSpecificInfo(
+    const TType &type, const TString& name, ShaderVariable *variable);
+template void GetVariableTraverser::setTypeSpecificInfo(
+    const TType &type, const TString& name, Uniform *variable);
+
+template<>
+void GetVariableTraverser::setTypeSpecificInfo(
+    const TType &type, const TString& name, Varying *variable)
+{
+    ASSERT(variable);
+    switch (type.getQualifier())
+    {
+      case EvqVaryingIn:
+      case EvqVaryingOut:
+      case EvqVertexOut:
+      case EvqSmoothOut:
+      case EvqFlatOut:
+      case EvqCentroidOut:
+        if (mSymbolTable.isVaryingInvariant(std::string(name.c_str())) || type.isInvariant())
+        {
+            variable->isInvariant = true;
+        }
+        break;
+      default:
+        break;
+    }
+
+    variable->interpolation = GetInterpolationType(type.getQualifier());
+}
+
+template <typename VarT>
+void GetVariableTraverser::traverse(const TType &type,
+                                    const TString &name,
+                                    std::vector<VarT> *output)
+{
+    const TStructure *structure = type.getStruct();
+
+    VarT variable;
+    variable.name = name.c_str();
+    variable.arraySize = type.getArraySize();
+
+    if (!structure)
+    {
+        variable.type = GLVariableType(type);
+        variable.precision = GLVariablePrecision(type);
+    }
+    else
+    {
+        // Note: this enum value is not exposed outside ANGLE
+        variable.type = GL_STRUCT_ANGLEX;
+        variable.structName = structure->name().c_str();
+
+        const TFieldList &fields = structure->fields();
+
+        for (size_t fieldIndex = 0; fieldIndex < fields.size(); fieldIndex++)
+        {
+            TField *field = fields[fieldIndex];
+            traverse(*field->type(), field->name(), &variable.fields);
+        }
+    }
+    setTypeSpecificInfo(type, name, &variable);
+    visitVariable(&variable);
+
+    ASSERT(output);
+    output->push_back(variable);
+}
+
+template void GetVariableTraverser::traverse(const TType &, const TString &, std::vector<InterfaceBlockField> *);
+template void GetVariableTraverser::traverse(const TType &, const TString &, std::vector<ShaderVariable> *);
+template void GetVariableTraverser::traverse(const TType &, const TString &, std::vector<Uniform> *);
+template void GetVariableTraverser::traverse(const TType &, const TString &, std::vector<Varying> *);
+
+// GLSL ES 1.0.17 4.6.1 The Invariant Qualifier
+bool CanBeInvariantESSL1(TQualifier qualifier)
+{
+    return IsVaryingIn(qualifier) || IsVaryingOut(qualifier) ||
+           IsBuiltinOutputVariable(qualifier) ||
+           (IsBuiltinFragmentInputVariable(qualifier) && qualifier != EvqFrontFacing);
+}
+
+// GLSL ES 3.00 Revision 6, 4.6.1 The Invariant Qualifier
+// GLSL ES 3.10 Revision 4, 4.8.1 The Invariant Qualifier
+bool CanBeInvariantESSL3OrGreater(TQualifier qualifier)
+{
+    return IsVaryingOut(qualifier) || qualifier == EvqFragmentOut ||
+           IsBuiltinOutputVariable(qualifier);
+}
+
+bool IsBuiltinOutputVariable(TQualifier qualifier)
+{
+    switch (qualifier)
+    {
+        case EvqPosition:
+        case EvqPointSize:
+        case EvqFragDepth:
+        case EvqFragDepthEXT:
+        case EvqFragColor:
+        case EvqSecondaryFragColorEXT:
+        case EvqFragData:
+        case EvqSecondaryFragDataEXT:
+            return true;
+        default:
+            break;
+    }
+    return false;
+}
+
+bool IsBuiltinFragmentInputVariable(TQualifier qualifier)
+{
+    switch (qualifier)
+    {
+        case EvqFragCoord:
+        case EvqPointCoord:
+        case EvqFrontFacing:
+            return true;
+        default:
+            break;
+    }
+    return false;
+}
+}  // namespace sh