1 // 2 // Copyright 2022 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 // EmulateAdvancedBlendEquations.h: Emulate advanced blend equations by implicitly reading back from 7 // the color attachment (as an input attachment) and apply the equation function based on a uniform. 8 // 9 10 #ifndef COMPILER_TRANSLATOR_TREEOPS_SPIRV_EMULATEADVANCEDBLENDEQUATIONS_H_ 11 #define COMPILER_TRANSLATOR_TREEOPS_SPIRV_EMULATEADVANCEDBLENDEQUATIONS_H_ 12 13 #include "common/angleutils.h" 14 #include "compiler/translator/Compiler.h" 15 16 namespace sh 17 { 18 19 class TCompiler; 20 class TIntermBlock; 21 class TSymbolTable; 22 class DriverUniform; 23 struct ShaderVariable; 24 class AdvancedBlendEquations; 25 26 // Declares the necessary input attachment (if not already for framebuffer fetch), loads from it and 27 // implements the specified advanced blend equation functions. A driver uniform is used to select 28 // which function to use at runtime. 29 [[nodiscard]] bool EmulateAdvancedBlendEquations( 30 TCompiler *compiler, 31 TIntermBlock *root, 32 TSymbolTable *symbolTable, 33 const DriverUniform *driverUniforms, 34 std::vector<ShaderVariable> *uniforms, 35 const AdvancedBlendEquations &advancedBlendEquations); 36 37 } // namespace sh 38 39 #endif // COMPILER_TRANSLATOR_TREEOPS_SPIRV_EMULATEADVANCEDBLENDEQUATIONS_H_ 40