| // |
| // Copyright (c) 2002-2010 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. |
| // |
| |
| #ifndef COMPILER_UTIL_H |
| #define COMPILER_UTIL_H |
| |
| #include <stack> |
| |
| #include "angle_gl.h" |
| #include <GLSLANG/ShaderLang.h> |
| |
| #include "compiler/translator/Types.h" |
| |
| // atof_clamp is like atof but |
| // 1. it forces C locale, i.e. forcing '.' as decimal point. |
| // 2. it clamps the value to -FLT_MAX or FLT_MAX if overflow happens. |
| // Return false if overflow happens. |
| extern bool atof_clamp(const char *str, float *value); |
| |
| // If overflow happens, clamp the value to INT_MIN or INT_MAX. |
| // Return false if overflow happens. |
| extern bool atoi_clamp(const char *str, int *value); |
| |
| namespace sh |
| { |
| |
| GLenum GLVariableType(const TType &type); |
| GLenum GLVariablePrecision(const TType &type); |
| bool IsVaryingIn(TQualifier qualifier); |
| bool IsVaryingOut(TQualifier qualifier); |
| bool IsVarying(TQualifier qualifier); |
| InterpolationType GetInterpolationType(TQualifier qualifier); |
| BlockLayoutType GetBlockLayoutType(TLayoutBlockStorage blockStorage); |
| TString ArrayString(const TType &type); |
| |
| template <typename VarT> |
| class GetVariableTraverser |
| { |
| public: |
| GetVariableTraverser(std::vector<VarT> *output); |
| void traverse(const TType &type, const TString &name); |
| |
| protected: |
| // May be overloaded |
| virtual void visitVariable(VarT *newVar) {} |
| |
| private: |
| std::stack<std::vector<VarT> *> mOutputStack; |
| }; |
| |
| struct GetInterfaceBlockFieldTraverser : public GetVariableTraverser<InterfaceBlockField> |
| { |
| public: |
| GetInterfaceBlockFieldTraverser(std::vector<InterfaceBlockField> *output, bool isRowMajorMatrix); |
| |
| private: |
| virtual void visitVariable(InterfaceBlockField *newField); |
| |
| bool mIsRowMajorMatrix; |
| }; |
| |
| } |
| |
| #endif // COMPILER_UTIL_H |