ClampFragDepth.h (1168B)
1 // 2 // Copyright 2017 The ANGLE Project Authors. All rights reserved. 3 // Use of this source code is governed by a BSD-style license that can be 4 // found in the LICENSE file. 5 // 6 // ClampFragDepth.h: Limit the value that is written to gl_FragDepth to the range [0.0, 1.0]. 7 // The clamping is run at the very end of shader execution, and is only performed if the shader 8 // statically accesses gl_FragDepth. 9 // 10 11 #ifndef COMPILER_TRANSLATOR_TREEOPS_GL_CLAMPFRAGDEPTH_H_ 12 #define COMPILER_TRANSLATOR_TREEOPS_GL_CLAMPFRAGDEPTH_H_ 13 14 #include "common/angleutils.h" 15 16 namespace sh 17 { 18 19 class TCompiler; 20 class TIntermBlock; 21 class TSymbolTable; 22 23 #ifdef ANGLE_ENABLE_GLSL 24 [[nodiscard]] bool ClampFragDepth(TCompiler *compiler, 25 TIntermBlock *root, 26 TSymbolTable *symbolTable); 27 #else 28 [[nodiscard]] ANGLE_INLINE bool ClampFragDepth(TCompiler *compiler, 29 TIntermBlock *root, 30 TSymbolTable *symbolTable) 31 { 32 UNREACHABLE(); 33 return false; 34 } 35 #endif 36 37 } // namespace sh 38 39 #endif // COMPILER_TRANSLATOR_TREEOPS_GL_CLAMPFRAGDEPTH_H_