diff options
Diffstat (limited to 'src/3rdparty/angle/src/compiler/translator/Initialize.cpp')
| -rw-r--r-- | src/3rdparty/angle/src/compiler/translator/Initialize.cpp | 564 |
1 files changed, 564 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/compiler/translator/Initialize.cpp b/src/3rdparty/angle/src/compiler/translator/Initialize.cpp new file mode 100644 index 0000000000..db728b2129 --- /dev/null +++ b/src/3rdparty/angle/src/compiler/translator/Initialize.cpp @@ -0,0 +1,564 @@ +// +// 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. +// + +// +// Create strings that declare built-in definitions, add built-ins that +// cannot be expressed in the files, and establish mappings between +// built-in functions and operators. +// + +#include "compiler/translator/Initialize.h" + +#include "compiler/translator/intermediate.h" + +void InsertBuiltInFunctions(ShShaderType type, ShShaderSpec spec, const ShBuiltInResources &resources, TSymbolTable &symbolTable) +{ + TType *float1 = new TType(EbtFloat, EbpUndefined, EvqGlobal, 1); + TType *float2 = new TType(EbtFloat, EbpUndefined, EvqGlobal, 2); + TType *float3 = new TType(EbtFloat, EbpUndefined, EvqGlobal, 3); + TType *float4 = new TType(EbtFloat, EbpUndefined, EvqGlobal, 4); + + TType *int2 = new TType(EbtInt, EbpUndefined, EvqGlobal, 2); + TType *int3 = new TType(EbtInt, EbpUndefined, EvqGlobal, 3); + TType *int4 = new TType(EbtInt, EbpUndefined, EvqGlobal, 4); + + // + // Angle and Trigonometric Functions. + // + symbolTable.insertBuiltIn(float1, "radians", float1); + symbolTable.insertBuiltIn(float2, "radians", float2); + symbolTable.insertBuiltIn(float3, "radians", float3); + symbolTable.insertBuiltIn(float4, "radians", float4); + + symbolTable.insertBuiltIn(float1, "degrees", float1); + symbolTable.insertBuiltIn(float2, "degrees", float2); + symbolTable.insertBuiltIn(float3, "degrees", float3); + symbolTable.insertBuiltIn(float4, "degrees", float4); + + symbolTable.insertBuiltIn(float1, "sin", float1); + symbolTable.insertBuiltIn(float2, "sin", float2); + symbolTable.insertBuiltIn(float3, "sin", float3); + symbolTable.insertBuiltIn(float4, "sin", float4); + + symbolTable.insertBuiltIn(float1, "cos", float1); + symbolTable.insertBuiltIn(float2, "cos", float2); + symbolTable.insertBuiltIn(float3, "cos", float3); + symbolTable.insertBuiltIn(float4, "cos", float4); + + symbolTable.insertBuiltIn(float1, "tan", float1); + symbolTable.insertBuiltIn(float2, "tan", float2); + symbolTable.insertBuiltIn(float3, "tan", float3); + symbolTable.insertBuiltIn(float4, "tan", float4); + + symbolTable.insertBuiltIn(float1, "asin", float1); + symbolTable.insertBuiltIn(float2, "asin", float2); + symbolTable.insertBuiltIn(float3, "asin", float3); + symbolTable.insertBuiltIn(float4, "asin", float4); + + symbolTable.insertBuiltIn(float1, "acos", float1); + symbolTable.insertBuiltIn(float2, "acos", float2); + symbolTable.insertBuiltIn(float3, "acos", float3); + symbolTable.insertBuiltIn(float4, "acos", float4); + + symbolTable.insertBuiltIn(float1, "atan", float1, float1); + symbolTable.insertBuiltIn(float2, "atan", float2, float2); + symbolTable.insertBuiltIn(float3, "atan", float3, float3); + symbolTable.insertBuiltIn(float4, "atan", float4, float4); + + symbolTable.insertBuiltIn(float1, "atan", float1); + symbolTable.insertBuiltIn(float2, "atan", float2); + symbolTable.insertBuiltIn(float3, "atan", float3); + symbolTable.insertBuiltIn(float4, "atan", float4); + + // + // Exponential Functions. + // + symbolTable.insertBuiltIn(float1, "pow", float1, float1); + symbolTable.insertBuiltIn(float2, "pow", float2, float2); + symbolTable.insertBuiltIn(float3, "pow", float3, float3); + symbolTable.insertBuiltIn(float4, "pow", float4, float4); + + symbolTable.insertBuiltIn(float1, "exp", float1); + symbolTable.insertBuiltIn(float2, "exp", float2); + symbolTable.insertBuiltIn(float3, "exp", float3); + symbolTable.insertBuiltIn(float4, "exp", float4); + + symbolTable.insertBuiltIn(float1, "log", float1); + symbolTable.insertBuiltIn(float2, "log", float2); + symbolTable.insertBuiltIn(float3, "log", float3); + symbolTable.insertBuiltIn(float4, "log", float4); + + symbolTable.insertBuiltIn(float1, "exp2", float1); + symbolTable.insertBuiltIn(float2, "exp2", float2); + symbolTable.insertBuiltIn(float3, "exp2", float3); + symbolTable.insertBuiltIn(float4, "exp2", float4); + + symbolTable.insertBuiltIn(float1, "log2", float1); + symbolTable.insertBuiltIn(float2, "log2", float2); + symbolTable.insertBuiltIn(float3, "log2", float3); + symbolTable.insertBuiltIn(float4, "log2", float4); + + symbolTable.insertBuiltIn(float1, "sqrt", float1); + symbolTable.insertBuiltIn(float2, "sqrt", float2); + symbolTable.insertBuiltIn(float3, "sqrt", float3); + symbolTable.insertBuiltIn(float4, "sqrt", float4); + + symbolTable.insertBuiltIn(float1, "inversesqrt", float1); + symbolTable.insertBuiltIn(float2, "inversesqrt", float2); + symbolTable.insertBuiltIn(float3, "inversesqrt", float3); + symbolTable.insertBuiltIn(float4, "inversesqrt", float4); + + // + // Common Functions. + // + symbolTable.insertBuiltIn(float1, "abs", float1); + symbolTable.insertBuiltIn(float2, "abs", float2); + symbolTable.insertBuiltIn(float3, "abs", float3); + symbolTable.insertBuiltIn(float4, "abs", float4); + + symbolTable.insertBuiltIn(float1, "sign", float1); + symbolTable.insertBuiltIn(float2, "sign", float2); + symbolTable.insertBuiltIn(float3, "sign", float3); + symbolTable.insertBuiltIn(float4, "sign", float4); + + symbolTable.insertBuiltIn(float1, "floor", float1); + symbolTable.insertBuiltIn(float2, "floor", float2); + symbolTable.insertBuiltIn(float3, "floor", float3); + symbolTable.insertBuiltIn(float4, "floor", float4); + + symbolTable.insertBuiltIn(float1, "ceil", float1); + symbolTable.insertBuiltIn(float2, "ceil", float2); + symbolTable.insertBuiltIn(float3, "ceil", float3); + symbolTable.insertBuiltIn(float4, "ceil", float4); + + symbolTable.insertBuiltIn(float1, "fract", float1); + symbolTable.insertBuiltIn(float2, "fract", float2); + symbolTable.insertBuiltIn(float3, "fract", float3); + symbolTable.insertBuiltIn(float4, "fract", float4); + + symbolTable.insertBuiltIn(float1, "mod", float1, float1); + symbolTable.insertBuiltIn(float2, "mod", float2, float1); + symbolTable.insertBuiltIn(float3, "mod", float3, float1); + symbolTable.insertBuiltIn(float4, "mod", float4, float1); + symbolTable.insertBuiltIn(float2, "mod", float2, float2); + symbolTable.insertBuiltIn(float3, "mod", float3, float3); + symbolTable.insertBuiltIn(float4, "mod", float4, float4); + + symbolTable.insertBuiltIn(float1, "min", float1, float1); + symbolTable.insertBuiltIn(float2, "min", float2, float1); + symbolTable.insertBuiltIn(float3, "min", float3, float1); + symbolTable.insertBuiltIn(float4, "min", float4, float1); + symbolTable.insertBuiltIn(float2, "min", float2, float2); + symbolTable.insertBuiltIn(float3, "min", float3, float3); + symbolTable.insertBuiltIn(float4, "min", float4, float4); + + symbolTable.insertBuiltIn(float1, "max", float1, float1); + symbolTable.insertBuiltIn(float2, "max", float2, float1); + symbolTable.insertBuiltIn(float3, "max", float3, float1); + symbolTable.insertBuiltIn(float4, "max", float4, float1); + symbolTable.insertBuiltIn(float2, "max", float2, float2); + symbolTable.insertBuiltIn(float3, "max", float3, float3); + symbolTable.insertBuiltIn(float4, "max", float4, float4); + + symbolTable.insertBuiltIn(float1, "clamp", float1, float1, float1); + symbolTable.insertBuiltIn(float2, "clamp", float2, float1, float1); + symbolTable.insertBuiltIn(float3, "clamp", float3, float1, float1); + symbolTable.insertBuiltIn(float4, "clamp", float4, float1, float1); + symbolTable.insertBuiltIn(float2, "clamp", float2, float2, float2); + symbolTable.insertBuiltIn(float3, "clamp", float3, float3, float3); + symbolTable.insertBuiltIn(float4, "clamp", float4, float4, float4); + + symbolTable.insertBuiltIn(float1, "mix", float1, float1, float1); + symbolTable.insertBuiltIn(float2, "mix", float2, float2, float1); + symbolTable.insertBuiltIn(float3, "mix", float3, float3, float1); + symbolTable.insertBuiltIn(float4, "mix", float4, float4, float1); + symbolTable.insertBuiltIn(float2, "mix", float2, float2, float2); + symbolTable.insertBuiltIn(float3, "mix", float3, float3, float3); + symbolTable.insertBuiltIn(float4, "mix", float4, float4, float4); + + symbolTable.insertBuiltIn(float1, "step", float1, float1); + symbolTable.insertBuiltIn(float2, "step", float2, float2); + symbolTable.insertBuiltIn(float3, "step", float3, float3); + symbolTable.insertBuiltIn(float4, "step", float4, float4); + symbolTable.insertBuiltIn(float2, "step", float1, float2); + symbolTable.insertBuiltIn(float3, "step", float1, float3); + symbolTable.insertBuiltIn(float4, "step", float1, float4); + + symbolTable.insertBuiltIn(float1, "smoothstep", float1, float1, float1); + symbolTable.insertBuiltIn(float2, "smoothstep", float2, float2, float2); + symbolTable.insertBuiltIn(float3, "smoothstep", float3, float3, float3); + symbolTable.insertBuiltIn(float4, "smoothstep", float4, float4, float4); + symbolTable.insertBuiltIn(float2, "smoothstep", float1, float1, float2); + symbolTable.insertBuiltIn(float3, "smoothstep", float1, float1, float3); + symbolTable.insertBuiltIn(float4, "smoothstep", float1, float1, float4); + + // + // Geometric Functions. + // + symbolTable.insertBuiltIn(float1, "length", float1); + symbolTable.insertBuiltIn(float1, "length", float2); + symbolTable.insertBuiltIn(float1, "length", float3); + symbolTable.insertBuiltIn(float1, "length", float4); + + symbolTable.insertBuiltIn(float1, "distance", float1, float1); + symbolTable.insertBuiltIn(float1, "distance", float2, float2); + symbolTable.insertBuiltIn(float1, "distance", float3, float3); + symbolTable.insertBuiltIn(float1, "distance", float4, float4); + + symbolTable.insertBuiltIn(float1, "dot", float1, float1); + symbolTable.insertBuiltIn(float1, "dot", float2, float2); + symbolTable.insertBuiltIn(float1, "dot", float3, float3); + symbolTable.insertBuiltIn(float1, "dot", float4, float4); + + symbolTable.insertBuiltIn(float3, "cross", float3, float3); + symbolTable.insertBuiltIn(float1, "normalize", float1); + symbolTable.insertBuiltIn(float2, "normalize", float2); + symbolTable.insertBuiltIn(float3, "normalize", float3); + symbolTable.insertBuiltIn(float4, "normalize", float4); + + symbolTable.insertBuiltIn(float1, "faceforward", float1, float1, float1); + symbolTable.insertBuiltIn(float2, "faceforward", float2, float2, float2); + symbolTable.insertBuiltIn(float3, "faceforward", float3, float3, float3); + symbolTable.insertBuiltIn(float4, "faceforward", float4, float4, float4); + + symbolTable.insertBuiltIn(float1, "reflect", float1, float1); + symbolTable.insertBuiltIn(float2, "reflect", float2, float2); + symbolTable.insertBuiltIn(float3, "reflect", float3, float3); + symbolTable.insertBuiltIn(float4, "reflect", float4, float4); + + symbolTable.insertBuiltIn(float1, "refract", float1, float1, float1); + symbolTable.insertBuiltIn(float2, "refract", float2, float2, float1); + symbolTable.insertBuiltIn(float3, "refract", float3, float3, float1); + symbolTable.insertBuiltIn(float4, "refract", float4, float4, float1); + + TType *mat2 = new TType(EbtFloat, EbpUndefined, EvqGlobal, 2, true); + TType *mat3 = new TType(EbtFloat, EbpUndefined, EvqGlobal, 3, true); + TType *mat4 = new TType(EbtFloat, EbpUndefined, EvqGlobal, 4, true); + + // + // Matrix Functions. + // + symbolTable.insertBuiltIn(mat2, "matrixCompMult", mat2, mat2); + symbolTable.insertBuiltIn(mat3, "matrixCompMult", mat3, mat3); + symbolTable.insertBuiltIn(mat4, "matrixCompMult", mat4, mat4); + + TType *bool1 = new TType(EbtBool, EbpUndefined, EvqGlobal, 1); + TType *bool2 = new TType(EbtBool, EbpUndefined, EvqGlobal, 2); + TType *bool3 = new TType(EbtBool, EbpUndefined, EvqGlobal, 3); + TType *bool4 = new TType(EbtBool, EbpUndefined, EvqGlobal, 4); + + // + // Vector relational functions. + // + symbolTable.insertBuiltIn(bool2, "lessThan", float2, float2); + symbolTable.insertBuiltIn(bool3, "lessThan", float3, float3); + symbolTable.insertBuiltIn(bool4, "lessThan", float4, float4); + + symbolTable.insertBuiltIn(bool2, "lessThan", int2, int2); + symbolTable.insertBuiltIn(bool3, "lessThan", int3, int3); + symbolTable.insertBuiltIn(bool4, "lessThan", int4, int4); + + symbolTable.insertBuiltIn(bool2, "lessThanEqual", float2, float2); + symbolTable.insertBuiltIn(bool3, "lessThanEqual", float3, float3); + symbolTable.insertBuiltIn(bool4, "lessThanEqual", float4, float4); + + symbolTable.insertBuiltIn(bool2, "lessThanEqual", int2, int2); + symbolTable.insertBuiltIn(bool3, "lessThanEqual", int3, int3); + symbolTable.insertBuiltIn(bool4, "lessThanEqual", int4, int4); + + symbolTable.insertBuiltIn(bool2, "greaterThan", float2, float2); + symbolTable.insertBuiltIn(bool3, "greaterThan", float3, float3); + symbolTable.insertBuiltIn(bool4, "greaterThan", float4, float4); + + symbolTable.insertBuiltIn(bool2, "greaterThan", int2, int2); + symbolTable.insertBuiltIn(bool3, "greaterThan", int3, int3); + symbolTable.insertBuiltIn(bool4, "greaterThan", int4, int4); + + symbolTable.insertBuiltIn(bool2, "greaterThanEqual", float2, float2); + symbolTable.insertBuiltIn(bool3, "greaterThanEqual", float3, float3); + symbolTable.insertBuiltIn(bool4, "greaterThanEqual", float4, float4); + + symbolTable.insertBuiltIn(bool2, "greaterThanEqual", int2, int2); + symbolTable.insertBuiltIn(bool3, "greaterThanEqual", int3, int3); + symbolTable.insertBuiltIn(bool4, "greaterThanEqual", int4, int4); + + symbolTable.insertBuiltIn(bool2, "equal", float2, float2); + symbolTable.insertBuiltIn(bool3, "equal", float3, float3); + symbolTable.insertBuiltIn(bool4, "equal", float4, float4); + + symbolTable.insertBuiltIn(bool2, "equal", int2, int2); + symbolTable.insertBuiltIn(bool3, "equal", int3, int3); + symbolTable.insertBuiltIn(bool4, "equal", int4, int4); + + symbolTable.insertBuiltIn(bool2, "equal", bool2, bool2); + symbolTable.insertBuiltIn(bool3, "equal", bool3, bool3); + symbolTable.insertBuiltIn(bool4, "equal", bool4, bool4); + + symbolTable.insertBuiltIn(bool2, "notEqual", float2, float2); + symbolTable.insertBuiltIn(bool3, "notEqual", float3, float3); + symbolTable.insertBuiltIn(bool4, "notEqual", float4, float4); + + symbolTable.insertBuiltIn(bool2, "notEqual", int2, int2); + symbolTable.insertBuiltIn(bool3, "notEqual", int3, int3); + symbolTable.insertBuiltIn(bool4, "notEqual", int4, int4); + + symbolTable.insertBuiltIn(bool2, "notEqual", bool2, bool2); + symbolTable.insertBuiltIn(bool3, "notEqual", bool3, bool3); + symbolTable.insertBuiltIn(bool4, "notEqual", bool4, bool4); + + symbolTable.insertBuiltIn(bool1, "any", bool2); + symbolTable.insertBuiltIn(bool1, "any", bool3); + symbolTable.insertBuiltIn(bool1, "any", bool4); + + symbolTable.insertBuiltIn(bool1, "all", bool2); + symbolTable.insertBuiltIn(bool1, "all", bool3); + symbolTable.insertBuiltIn(bool1, "all", bool4); + + symbolTable.insertBuiltIn(bool2, "not", bool2); + symbolTable.insertBuiltIn(bool3, "not", bool3); + symbolTable.insertBuiltIn(bool4, "not", bool4); + + TType *sampler2D = new TType(EbtSampler2D, EbpUndefined, EvqGlobal, 1); + TType *samplerCube = new TType(EbtSamplerCube, EbpUndefined, EvqGlobal, 1); + + // + // Texture Functions for GLSL ES 1.0 + // + symbolTable.insertBuiltIn(float4, "texture2D", sampler2D, float2); + symbolTable.insertBuiltIn(float4, "texture2DProj", sampler2D, float3); + symbolTable.insertBuiltIn(float4, "texture2DProj", sampler2D, float4); + symbolTable.insertBuiltIn(float4, "textureCube", samplerCube, float3); + + if (resources.OES_EGL_image_external) + { + TType *samplerExternalOES = new TType(EbtSamplerExternalOES, EbpUndefined, EvqGlobal, 1); + + symbolTable.insertBuiltIn(float4, "texture2D", samplerExternalOES, float2); + symbolTable.insertBuiltIn(float4, "texture2DProj", samplerExternalOES, float3); + symbolTable.insertBuiltIn(float4, "texture2DProj", samplerExternalOES, float4); + } + + if (resources.ARB_texture_rectangle) + { + TType *sampler2DRect = new TType(EbtSampler2DRect, EbpUndefined, EvqGlobal, 1); + + symbolTable.insertBuiltIn(float4, "texture2DRect", sampler2DRect, float2); + symbolTable.insertBuiltIn(float4, "texture2DRectProj", sampler2DRect, float3); + symbolTable.insertBuiltIn(float4, "texture2DRectProj", sampler2DRect, float4); + } + + if (type == SH_FRAGMENT_SHADER) + { + symbolTable.insertBuiltIn(float4, "texture2D", sampler2D, float2, float1); + symbolTable.insertBuiltIn(float4, "texture2DProj", sampler2D, float3, float1); + symbolTable.insertBuiltIn(float4, "texture2DProj", sampler2D, float4, float1); + symbolTable.insertBuiltIn(float4, "textureCube", samplerCube, float3, float1); + + if (resources.OES_standard_derivatives) + { + symbolTable.insertBuiltIn(float1, "dFdx", float1); + symbolTable.insertBuiltIn(float2, "dFdx", float2); + symbolTable.insertBuiltIn(float3, "dFdx", float3); + symbolTable.insertBuiltIn(float4, "dFdx", float4); + + symbolTable.insertBuiltIn(float1, "dFdy", float1); + symbolTable.insertBuiltIn(float2, "dFdy", float2); + symbolTable.insertBuiltIn(float3, "dFdy", float3); + symbolTable.insertBuiltIn(float4, "dFdy", float4); + + symbolTable.insertBuiltIn(float1, "fwidth", float1); + symbolTable.insertBuiltIn(float2, "fwidth", float2); + symbolTable.insertBuiltIn(float3, "fwidth", float3); + symbolTable.insertBuiltIn(float4, "fwidth", float4); + } + } + + if(type == SH_VERTEX_SHADER) + { + symbolTable.insertBuiltIn(float4, "texture2DLod", sampler2D, float2, float1); + symbolTable.insertBuiltIn(float4, "texture2DProjLod", sampler2D, float3, float1); + symbolTable.insertBuiltIn(float4, "texture2DProjLod", sampler2D, float4, float1); + symbolTable.insertBuiltIn(float4, "textureCubeLod", samplerCube, float3, float1); + } + + // + // Depth range in window coordinates + // + TFieldList *fields = NewPoolTFieldList(); + TField *near = new TField(new TType(EbtFloat, EbpHigh, EvqGlobal, 1), NewPoolTString("near")); + TField *far = new TField(new TType(EbtFloat, EbpHigh, EvqGlobal, 1), NewPoolTString("far")); + TField *diff = new TField(new TType(EbtFloat, EbpHigh, EvqGlobal, 1), NewPoolTString("diff")); + fields->push_back(near); + fields->push_back(far); + fields->push_back(diff); + TStructure *depthRangeStruct = new TStructure(NewPoolTString("gl_DepthRangeParameters"), fields); + TVariable *depthRangeParameters = new TVariable(&depthRangeStruct->name(), depthRangeStruct, true); + symbolTable.insert(*depthRangeParameters); + TVariable *depthRange = new TVariable(NewPoolTString("gl_DepthRange"), TType(depthRangeStruct)); + depthRange->setQualifier(EvqUniform); + symbolTable.insert(*depthRange); + + // + // Implementation dependent built-in constants. + // + symbolTable.insertConstInt("gl_MaxVertexAttribs", resources.MaxVertexAttribs); + symbolTable.insertConstInt("gl_MaxVertexUniformVectors", resources.MaxVertexUniformVectors); + symbolTable.insertConstInt("gl_MaxVaryingVectors", resources.MaxVaryingVectors); + symbolTable.insertConstInt("gl_MaxVertexTextureImageUnits", resources.MaxVertexTextureImageUnits); + symbolTable.insertConstInt("gl_MaxCombinedTextureImageUnits", resources.MaxCombinedTextureImageUnits); + symbolTable.insertConstInt("gl_MaxTextureImageUnits", resources.MaxTextureImageUnits); + symbolTable.insertConstInt("gl_MaxFragmentUniformVectors", resources.MaxFragmentUniformVectors); + + if (spec != SH_CSS_SHADERS_SPEC) + { + symbolTable.insertConstInt("gl_MaxDrawBuffers", resources.MaxDrawBuffers); + } +} + +void IdentifyBuiltIns(ShShaderType type, ShShaderSpec spec, + const ShBuiltInResources &resources, + TSymbolTable &symbolTable) +{ + // + // First, insert some special built-in variables that are not in + // the built-in header files. + // + switch(type) { + case SH_FRAGMENT_SHADER: + symbolTable.insert(*new TVariable(NewPoolTString("gl_FragCoord"), TType(EbtFloat, EbpMedium, EvqFragCoord, 4))); + symbolTable.insert(*new TVariable(NewPoolTString("gl_FrontFacing"), TType(EbtBool, EbpUndefined, EvqFrontFacing, 1))); + symbolTable.insert(*new TVariable(NewPoolTString("gl_PointCoord"), TType(EbtFloat, EbpMedium, EvqPointCoord, 2))); + + // + // In CSS Shaders, gl_FragColor, gl_FragData, and gl_MaxDrawBuffers are not available. + // Instead, css_MixColor and css_ColorMatrix are available. + // + if (spec != SH_CSS_SHADERS_SPEC) { + symbolTable.insert(*new TVariable(NewPoolTString("gl_FragColor"), TType(EbtFloat, EbpMedium, EvqFragColor, 4))); + symbolTable.insert(*new TVariable(NewPoolTString("gl_FragData[gl_MaxDrawBuffers]"), TType(EbtFloat, EbpMedium, EvqFragData, 4))); + if (resources.EXT_frag_depth) { + symbolTable.insert(*new TVariable(NewPoolTString("gl_FragDepthEXT"), TType(EbtFloat, resources.FragmentPrecisionHigh ? EbpHigh : EbpMedium, EvqFragDepth, 1))); + symbolTable.relateToExtension("gl_FragDepthEXT", "GL_EXT_frag_depth"); + } + } else { + symbolTable.insert(*new TVariable(NewPoolTString("css_MixColor"), TType(EbtFloat, EbpMedium, EvqGlobal, 4))); + symbolTable.insert(*new TVariable(NewPoolTString("css_ColorMatrix"), TType(EbtFloat, EbpMedium, EvqGlobal, 4, true))); + } + + break; + + case SH_VERTEX_SHADER: + symbolTable.insert(*new TVariable(NewPoolTString("gl_Position"), TType(EbtFloat, EbpHigh, EvqPosition, 4))); + symbolTable.insert(*new TVariable(NewPoolTString("gl_PointSize"), TType(EbtFloat, EbpMedium, EvqPointSize, 1))); + break; + + default: assert(false && "Language not supported"); + } + + // + // Next, identify which built-ins from the already loaded headers have + // a mapping to an operator. Those that are not identified as such are + // expected to be resolved through a library of functions, versus as + // operations. + // + symbolTable.relateToOperator("matrixCompMult", EOpMul); + + symbolTable.relateToOperator("equal", EOpVectorEqual); + symbolTable.relateToOperator("notEqual", EOpVectorNotEqual); + symbolTable.relateToOperator("lessThan", EOpLessThan); + symbolTable.relateToOperator("greaterThan", EOpGreaterThan); + symbolTable.relateToOperator("lessThanEqual", EOpLessThanEqual); + symbolTable.relateToOperator("greaterThanEqual", EOpGreaterThanEqual); + + symbolTable.relateToOperator("radians", EOpRadians); + symbolTable.relateToOperator("degrees", EOpDegrees); + symbolTable.relateToOperator("sin", EOpSin); + symbolTable.relateToOperator("cos", EOpCos); + symbolTable.relateToOperator("tan", EOpTan); + symbolTable.relateToOperator("asin", EOpAsin); + symbolTable.relateToOperator("acos", EOpAcos); + symbolTable.relateToOperator("atan", EOpAtan); + + symbolTable.relateToOperator("pow", EOpPow); + symbolTable.relateToOperator("exp2", EOpExp2); + symbolTable.relateToOperator("log", EOpLog); + symbolTable.relateToOperator("exp", EOpExp); + symbolTable.relateToOperator("log2", EOpLog2); + symbolTable.relateToOperator("sqrt", EOpSqrt); + symbolTable.relateToOperator("inversesqrt", EOpInverseSqrt); + + symbolTable.relateToOperator("abs", EOpAbs); + symbolTable.relateToOperator("sign", EOpSign); + symbolTable.relateToOperator("floor", EOpFloor); + symbolTable.relateToOperator("ceil", EOpCeil); + symbolTable.relateToOperator("fract", EOpFract); + symbolTable.relateToOperator("mod", EOpMod); + symbolTable.relateToOperator("min", EOpMin); + symbolTable.relateToOperator("max", EOpMax); + symbolTable.relateToOperator("clamp", EOpClamp); + symbolTable.relateToOperator("mix", EOpMix); + symbolTable.relateToOperator("step", EOpStep); + symbolTable.relateToOperator("smoothstep", EOpSmoothStep); + + symbolTable.relateToOperator("length", EOpLength); + symbolTable.relateToOperator("distance", EOpDistance); + symbolTable.relateToOperator("dot", EOpDot); + symbolTable.relateToOperator("cross", EOpCross); + symbolTable.relateToOperator("normalize", EOpNormalize); + symbolTable.relateToOperator("faceforward", EOpFaceForward); + symbolTable.relateToOperator("reflect", EOpReflect); + symbolTable.relateToOperator("refract", EOpRefract); + + symbolTable.relateToOperator("any", EOpAny); + symbolTable.relateToOperator("all", EOpAll); + symbolTable.relateToOperator("not", EOpVectorLogicalNot); + + // Map language-specific operators. + switch(type) { + case SH_VERTEX_SHADER: + break; + case SH_FRAGMENT_SHADER: + if (resources.OES_standard_derivatives) { + symbolTable.relateToOperator("dFdx", EOpDFdx); + symbolTable.relateToOperator("dFdy", EOpDFdy); + symbolTable.relateToOperator("fwidth", EOpFwidth); + + symbolTable.relateToExtension("dFdx", "GL_OES_standard_derivatives"); + symbolTable.relateToExtension("dFdy", "GL_OES_standard_derivatives"); + symbolTable.relateToExtension("fwidth", "GL_OES_standard_derivatives"); + } + break; + default: break; + } + + // Finally add resource-specific variables. + switch(type) { + case SH_FRAGMENT_SHADER: + if (spec != SH_CSS_SHADERS_SPEC) { + // Set up gl_FragData. The array size. + TType fragData(EbtFloat, EbpMedium, EvqFragData, 4, false, true); + fragData.setArraySize(resources.MaxDrawBuffers); + symbolTable.insert(*new TVariable(NewPoolTString("gl_FragData"), fragData)); + } + break; + default: break; + } +} + +void InitExtensionBehavior(const ShBuiltInResources& resources, + TExtensionBehavior& extBehavior) +{ + if (resources.OES_standard_derivatives) + extBehavior["GL_OES_standard_derivatives"] = EBhUndefined; + if (resources.OES_EGL_image_external) + extBehavior["GL_OES_EGL_image_external"] = EBhUndefined; + if (resources.ARB_texture_rectangle) + extBehavior["GL_ARB_texture_rectangle"] = EBhUndefined; + if (resources.EXT_draw_buffers) + extBehavior["GL_EXT_draw_buffers"] = EBhUndefined; + if (resources.EXT_frag_depth) + extBehavior["GL_EXT_frag_depth"] = EBhUndefined; +} |