RewriteTexelFetchOffset.h (1114B)
1 // 2 // Copyright 2016 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 // This mutating tree traversal works around an issue on the translation 7 // from texelFetchOffset into HLSL function Load on INTEL drivers. It 8 // works by translating texelFetchOffset into texelFetch: 9 // 10 // - From: texelFetchOffset(sampler, Position, lod, offset) 11 // - To: texelFetch(sampler, Position+offset, lod) 12 // 13 // See http://anglebug.com/1469 14 15 #ifndef COMPILER_TRANSLATOR_TREEOPS_REWRITE_TEXELFETCHOFFSET_H_ 16 #define COMPILER_TRANSLATOR_TREEOPS_REWRITE_TEXELFETCHOFFSET_H_ 17 18 #include "common/angleutils.h" 19 20 namespace sh 21 { 22 23 class TCompiler; 24 class TIntermNode; 25 class TSymbolTable; 26 27 [[nodiscard]] bool RewriteTexelFetchOffset(TCompiler *compiler, 28 TIntermNode *root, 29 const TSymbolTable &symbolTable, 30 int shaderVersion); 31 32 } // namespace sh 33 34 #endif // COMPILER_TRANSLATOR_TREEOPS_REWRITE_TEXELFETCHOFFSET_H_