mirror of https://github.com/axmolengine/axmol.git
97 lines
3.2 KiB
C++
97 lines
3.2 KiB
C++
/****************************************************************************
|
|
Copyright (c) 2018 Xiamen Yaji Software Co., Ltd.
|
|
|
|
https://axis-project.github.io/
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
****************************************************************************/
|
|
#pragma once
|
|
|
|
#include "Macros.h"
|
|
#include "base/CCRef.h"
|
|
#include "platform/CCPlatformMacros.h"
|
|
#include "renderer/backend/ShaderModule.h"
|
|
|
|
#include <string>
|
|
#include <unordered_map>
|
|
|
|
NS_AX_BACKEND_BEGIN
|
|
/**
|
|
* @addtogroup _backend
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* Create and reuse shader module.
|
|
*/
|
|
class AX_DLL ShaderCache : public Ref
|
|
{
|
|
public:
|
|
/** returns the shared instance */
|
|
static ShaderCache* getInstance();
|
|
|
|
/** purges the cache. It releases the retained instance. */
|
|
static void destroyInstance();
|
|
|
|
/**
|
|
* Create a vertex shader module and add it to cache.
|
|
* If it is created before, then just return the cached shader module.
|
|
* @param shaderSource The source code of the shader.
|
|
*/
|
|
static backend::ShaderModule* newVertexShaderModule(std::string_view shaderSource);
|
|
|
|
/**
|
|
* Create a fragment shader module.
|
|
* If it is created before, then just return the cached shader module.
|
|
* @param shaderSource The source code of the shader.
|
|
*/
|
|
static backend::ShaderModule* newFragmentShaderModule(std::string_view shaderSource);
|
|
|
|
/**
|
|
* Remove all unused shaders.
|
|
*/
|
|
void removeUnusedShader();
|
|
|
|
protected:
|
|
virtual ~ShaderCache();
|
|
|
|
/**
|
|
* Initial shader cache.
|
|
* @return true if initial successful, otherwise false.
|
|
*/
|
|
bool init();
|
|
|
|
/**
|
|
* New a shaderModule.
|
|
* If it was created before, then just return the cached shader module.
|
|
* Otherwise add it to cache and return the object.
|
|
* @param stage Specifies whether is vertex shader or fragment shader.
|
|
* @param source Specifies shader source.
|
|
* @return A ShaderModule object.
|
|
*/
|
|
static backend::ShaderModule* newShaderModule(backend::ShaderStage stage, std::string_view shaderSource);
|
|
|
|
static std::unordered_map<std::size_t, backend::ShaderModule*> _cachedShaders;
|
|
static ShaderCache* _sharedShaderCache;
|
|
};
|
|
|
|
// end of _backend group
|
|
/// @}
|
|
NS_AX_BACKEND_END
|