1 // 2 // Copyright 2018 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 // RewriteExpressionsWithShaderStorageBlock rewrites the expressions that contain shader storage 7 // block calls into several simple ones that can be easily handled in the HLSL translator. After the 8 // AST pass, all ssbo related blocks will be like below: 9 // ssbo_access_chain = ssbo_access_chain; 10 // ssbo_access_chain = expr_no_ssbo; 11 // lvalue_no_ssbo = ssbo_access_chain; 12 // 13 // Below situations are needed to be rewritten (Details can be found in .cpp file). 14 // SSBO as the operand of compound assignment operators. 15 // SSBO as the operand of ++/--. 16 // SSBO as the operand of repeated assignment. 17 // SSBO as the operand of readonly unary/binary/ternary operators. 18 // SSBO as the argument of aggregate type. 19 // SSBO as the condition of if/switch/while/do-while/for 20 21 #ifndef COMPILER_TRANSLATOR_TREEOPS_D3D_REWRITE_EXPRESSIONS_WITH_SHADER_STORAGE_BLOCK_H_ 22 #define COMPILER_TRANSLATOR_TREEOPS_D3D_REWRITE_EXPRESSIONS_WITH_SHADER_STORAGE_BLOCK_H_ 23 24 #include "common/angleutils.h" 25 26 namespace sh 27 { 28 class TCompiler; 29 class TIntermNode; 30 class TSymbolTable; 31 32 ANGLE_NO_DISCARD bool RewriteExpressionsWithShaderStorageBlock(TCompiler *compiler, 33 TIntermNode *root, 34 TSymbolTable *symbolTable); 35 } // namespace sh 36 37 #endif // COMPILER_TRANSLATOR_TREEOPS_D3D_REWRITE_EXPRESSIONS_WITH_SHADER_STORAGE_BLOCK_H_ 38