mirror of https://github.com/axmolengine/axmol.git
145 lines
4.7 KiB
C++
145 lines
4.7 KiB
C++
/****************************************************************************
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Copyright (c) 2018-2019 Xiamen Yaji Software Co., Ltd.
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Copyright (c) 2022 Bytedance Inc.
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https://axmolengine.github.io/
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#pragma once
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#include "Macros.h"
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#include "base/CCRef.h"
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#include "platform/CCPlatformMacros.h"
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#include "Program.h"
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#include <string>
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#include <unordered_map>
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#include "ProgramStateRegistry.h"
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NS_AX_BACKEND_BEGIN
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/**
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* @addtogroup _backend
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* @{
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*/
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struct AX_DLL VertexLayoutHelper
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{
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static void setupDummy(Program*);
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static void setupPos(Program*);
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static void setupTexture(Program*);
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static void setupSprite(Program*);
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static void setupDrawNode(Program*);
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static void setupDrawNode3D(Program*);
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static void setupSkyBox(Program*);
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static void setupPU3D(Program*);
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static void setupPosColor(Program*);
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static void setupTerrain3D(Program*);
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};
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/**
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* Cache and reuse program object.
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*/
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class AX_DLL ProgramManager : public Ref
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{
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public:
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/** new progrma with vertexLayout setup support, user should use this API */
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static Program* newProgram(std::string_view vertShaderSource,
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std::string_view fragShaderSource,
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std::function<void(Program*)> fnSetupLayout = VertexLayoutHelper::setupDummy);
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/** returns the shared instance */
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static ProgramManager* getInstance();
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/** purges the cache. It releases the retained instance. */
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static void destroyInstance();
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/// get built-in program
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Program* getBuiltinProgram(uint32_t type) const;
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// get custom program, should call registerCustomProgramFactory first
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Program* getCustomProgram(uint32_t type) const;
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// register custom program create factory
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void registerCustomProgramFactory(uint32_t type,
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std::string vertShaderSource,
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std::string fragShaderSource,
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std::function<void(Program*)> fnSetupLayout = VertexLayoutHelper::setupDummy);
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/**
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* Remove a program object from cache.
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* @param program Specifies the program object to move.
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*/
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void removeProgram(Program* program);
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/**
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* Remove all unused program objects from cache.
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*/
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void removeUnusedProgram();
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/**
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* Remove all program objects from cache.
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*/
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void removeAllPrograms();
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protected:
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ProgramManager() = default;
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virtual ~ProgramManager();
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/**
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* Pre-load programs into cache.
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*/
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bool init();
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void registerProgramFactory(uint32_t internalType,
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std::string&& vertShaderSource,
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std::string&& fragShaderSource,
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std::function<void(Program*)> fnSetupLayout);
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Program* addProgram(uint32_t internalType) const;
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std::function<Program*()> _builtinFactories[(int)backend::ProgramType::BUILTIN_COUNT];
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std::unordered_map<uint32_t, std::function<Program*()>> _customFactories;
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mutable std::unordered_map<uint32_t, Program*> _cachedPrograms; ///< The cached program object.
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static ProgramManager* _sharedProgramManager; ///< A shared instance of the program cache.
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};
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using ProgramCache = ProgramManager; // for compatible
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// end of _backend group
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/// @}
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NS_AX_BACKEND_END
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/**
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* @alias some feq use types to namespace ax
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*/
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NS_AX_BEGIN
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using ProgramType = ::ax::backend::ProgramType;
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using Program = ::ax::backend::Program;
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using VertexLayout = ::ax::backend::VertexLayout;
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using VertexLayoutHelper = ::ax::backend::VertexLayoutHelper;
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using ProgramManager = ::ax::backend::ProgramManager;
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using ProgramRegistry = ::ax::backend::ProgramStateRegistry;
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NS_AX_END
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