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_VULKAN_EMULATEADVANCEDBLENDEQUATIONS_H_ 11 #define COMPILER_TRANSLATOR_TREEOPS_VULKAN_EMULATEADVANCEDBLENDEQUATIONS_H_ 12 13 #include "common/angleutils.h" 14 15 namespace sh 16 { 17 18 class TCompiler; 19 class TIntermBlock; 20 class TSymbolTable; 21 class DriverUniform; 22 struct ShaderVariable; 23 class AdvancedBlendEquations; 24 25 // Declares the necessary input attachment (if not already for framebuffer fetch), loads from it and 26 // implements the specified advanced blend equation functions. A driver uniform is used to select 27 // which function to use at runtime. 28 ANGLE_NO_DISCARD bool EmulateAdvancedBlendEquations( 29 TCompiler *compiler, 30 TIntermBlock *root, 31 TSymbolTable *symbolTable, 32 const DriverUniform *driverUniforms, 33 std::vector<ShaderVariable> *uniforms, 34 const AdvancedBlendEquations &advancedBlendEquations); 35 36 } // namespace sh 37 38 #endif // COMPILER_TRANSLATOR_TREEOPS_VULKAN_EMULATEADVANCEDBLENDEQUATIONS_H_ 39