axmol/cocos/platform/winrt/CCPrecompiledShaders.h

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Copyright (c) 2010-2013 cocos2d-x.org
Copyright (c) Microsoft Open Technologies, Inc.

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#ifndef __CC_PRECOMPILED_SHADERS_H__
#define __CC_PRECOMPILED_SHADERS_H__

#include "platform/CCCommon.h"
#include "CCGL.h"

#include <string>
#include <vector>
#include <map>

NS_CC_BEGIN

typedef struct _PrecompiledProgram
{
    const char* key;
    const unsigned char* program;
    int    length;
} PrecompiledProgram;

typedef struct _CompiledProgram
{
    std::string key;
    std::vector<unsigned char> program;
    int    length;
} CompiledProgram;

#if 0

const unsigned char gKey[] = "hello";
const unsigned char gProgram[] = "world";
PrecompiledShader gFoo = {gKey, gProgram, 100};

PrecompiledShader shaders[]  = {gFoo, gFoo};
#endif

class CC_DLL CCPrecompiledShaders
{
public:
    CCPrecompiledShaders();
    virtual ~CCPrecompiledShaders();


    /**
    @brief    Get current precompiled shaders instance.
    @return Current precompiled shaders instance pointer.
    */
    static CCPrecompiledShaders* getInstance();

    void addPrecompiledProgram(const char* key, const unsigned char* program, int programLength);
    std::string addShaders(const GLchar* vShaderByteArray, const GLchar* fShaderByteArray);
    bool addProgram(GLuint program, const std::string& id);

    bool loadProgram(GLuint program, const GLchar* vShaderByteArray, const GLchar* fShaderByteArray);


#if (CC_TARGET_PLATFORM == CC_PLATFORM_WINRT)
    void savePrecompiledShaders();
#endif

protected:
    void savePrecompiledPrograms(Windows::Storage::StorageFolder^ folder);
    void loadPrecompiledPrograms();

    void                Init();

    std::map<std::string, CompiledProgram*> m_programs;
    std::map<std::string, PrecompiledProgram*> m_precompiledPrograms;
    
    bool                m_isDirty;
};

NS_CC_END

#endif    // __CC_PRECOMPILED_SHADERS_H__