| // |
| // 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. |
| // |
| |
| #if defined(__LB_XB360__) |
| # undef near |
| # undef far |
| #endif |
| |
| #include "compiler/Initialize.h" |
| |
| #include "compiler/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; |
| } |
