| // |
| // Copyright 2016 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. |
| // |
| // This mutating tree traversal works around an issue on the translation |
| // from texelFetchOffset into HLSL function Load on INTEL drivers. It |
| // works by translating texelFetchOffset into texelFetch: |
| // |
| // - From: texelFetchOffset(sampler, Position, lod, offset) |
| // - To: texelFetch(sampler, Position+offset, lod) |
| // |
| // See http://anglebug.com/1469 |
| |
| #ifndef COMPILER_TRANSLATOR_TREEOPS_REWRITE_TEXELFETCHOFFSET_H_ |
| #define COMPILER_TRANSLATOR_TREEOPS_REWRITE_TEXELFETCHOFFSET_H_ |
| |
| #include "common/angleutils.h" |
| |
| namespace sh |
| { |
| |
| class TCompiler; |
| class TIntermNode; |
| class TSymbolTable; |
| |
| ANGLE_NO_DISCARD bool RewriteTexelFetchOffset(TCompiler *compiler, |
| TIntermNode *root, |
| const TSymbolTable &symbolTable, |
| int shaderVersion); |
| |
| } // namespace sh |
| |
| #endif // COMPILER_TRANSLATOR_TREEOPS_REWRITE_TEXELFETCHOFFSET_H_ |
