axmol/cocos2dx/shaders/CCShaderCache.h

/****************************************************************************
Copyright (c) 2010-2011 cocos2d-x.org
Copyright (c) 2011      Ricardo Quesada
Copyright (c) 2011      Zynga Inc.

http://www.cocos2d-x.org

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****************************************************************************/

#ifndef __CCSHADERCACHE_H__
#define __CCSHADERCACHE_H__

#include "cocoa/CCDictionary.h"

NS_CC_BEGIN

class CCGLProgram;

/** CCShaderCache
 Singleton that stores manages GL shaders
 @since v2.0
 */
class CC_DLL CCShaderCache : public CCObject 
{
public:
    CCShaderCache();

    virtual ~CCShaderCache();
    /** returns the shared instance */
    static CCShaderCache* sharedShaderCache();

    /** purges the cache. It releases the retained instance. */
    static void purgeSharedShaderCache();

    /** loads the default shaders */
    void loadDefaultShaders();
    
    /** reload the default shaders */
    void reloadDefaultShaders();

    /** returns a GL program for a given key */
    CCGLProgram * programForKey(const char* key);

    /** adds a CCGLProgram to the cache for a given name */
    void addProgram(CCGLProgram* program, const char* key);

private:
    bool init();
    void loadDefaultShader(CCGLProgram *program, int type);

    CCDictionary* m_pPrograms;

};

NS_CC_END

#endif /* __CCSHADERCACHE_H__ */