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cocos2d/cocos/renderer/CCGLProgramCache.h

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+/****************************************************************************
+Copyright (c) 2011      Ricardo Quesada
+Copyright (c) 2010-2012 cocos2d-x.org
+Copyright (c) 2011      Zynga Inc.
+Copyright (c) 2013-2014 Chukong Technologies Inc.
+
+http://www.cocos2d-x.org
+
+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.
+****************************************************************************/
+
+#ifndef __CCGLPROGRAMCACHE_H__
+#define __CCGLPROGRAMCACHE_H__
+
+#include <string>
+#include <unordered_map>
+
+#include "base/CCRef.h"
+
+/**
+ * @addtogroup renderer
+ * @{
+ */
+
+NS_CC_BEGIN
+
+class GLProgram;
+
+/** GLProgramCache
+ Singleton that stores manages GLProgram objects (shaders)
+ @since v2.0
+ */
+class CC_DLL GLProgramCache : public Ref
+{
+public:
+    /**
+    Constructor.
+     * @js ctor
+     */
+    GLProgramCache();
+    /**
+    Destructor.
+     * @js NA
+     * @lua NA
+     */
+    ~GLProgramCache();
+
+    /** returns the shared instance */
+    static GLProgramCache* getInstance();
+
+    /** purges the cache. It releases the retained instance. */
+    static void destroyInstance();
+
+    /** @deprecated Use getInstance() instead */
+    CC_DEPRECATED_ATTRIBUTE static GLProgramCache* sharedShaderCache();
+
+    /** @deprecated Use destroyInstance() instead */
+    CC_DEPRECATED_ATTRIBUTE static void purgeSharedShaderCache();
+
+    /** loads the default shaders */
+    void loadDefaultGLPrograms();
+    CC_DEPRECATED_ATTRIBUTE void loadDefaultShaders() { loadDefaultGLPrograms(); }
+
+    /** reload the default shaders */
+    void reloadDefaultGLPrograms();
+    CC_DEPRECATED_ATTRIBUTE void reloadDefaultShaders() { reloadDefaultGLPrograms(); }
+
+    /** returns a GL program for a given key 
+     */
+    GLProgram * getGLProgram(const std::string &key);
+    CC_DEPRECATED_ATTRIBUTE GLProgram * getProgram(const std::string &key) { return getGLProgram(key); }
+    CC_DEPRECATED_ATTRIBUTE GLProgram * programForKey(const std::string &key){ return getGLProgram(key); }
+
+    /** adds a GLProgram to the cache for a given name */
+    void addGLProgram(GLProgram* program, const std::string &key);
+    CC_DEPRECATED_ATTRIBUTE void addProgram(GLProgram* program, const std::string &key) { addGLProgram(program, key); }
+    
+    /** reload default programs these are relative to light */
+    void reloadDefaultGLProgramsRelativeToLights();
+
+private:
+    /**
+    @{
+        Init and load predefined shaders.
+    */
+    bool init();
+    void loadDefaultGLProgram(GLProgram *program, int type);
+    /**
+    @}
+    */
+
+    /**Get macro define for lights in current openGL driver.*/
+    std::string getShaderMacrosForLight() const;
+
+    /**Predefined shaders.*/
+    std::unordered_map<std::string, GLProgram*> _programs;
+};
+
+NS_CC_END
+// end of shaders group
+/// @}
+
+#endif /* __CCGLPROGRAMCACHE_H__ */