axmol/cocos/base/CCStencilStateManager.h

/****************************************************************************
 Copyright (c) 2010-2012 cocos2d-x.org
 Copyright (c) 2013-2017 Chukong Technologies Inc.
 
 http://www.cocos2d-x.org
 
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 all copies or substantial portions of the Software.
 
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#ifndef StencilStateManager_hpp
#define StencilStateManager_hpp
#include "base/ccConfig.h"
#include "platform/CCPlatformMacros.h"
#include "platform/CCGL.h"

/**
 * @addtogroup base
 * @{
 */
NS_CC_BEGIN

class CC_DLL StencilStateManager
{
public:
    StencilStateManager();
    void onBeforeVisit();
    void onAfterDrawStencil();
    void onAfterVisit();
    void setAlphaThreshold(GLfloat alphaThreshold);
    void setInverted(bool inverted);
    bool isInverted()const;
    GLfloat getAlphaThreshold()const;
private:
    CC_DISALLOW_COPY_AND_ASSIGN(StencilStateManager);
    static GLint s_layer;
    /**draw fullscreen quad to clear stencil bits
     */
    void drawFullScreenQuadClearStencil();
    
    
    GLfloat _alphaThreshold;
    bool    _inverted;
    
    GLboolean _currentStencilEnabled;
    GLuint _currentStencilWriteMask;
    GLenum _currentStencilFunc;
    GLint _currentStencilRef;
    GLuint _currentStencilValueMask;
    GLenum _currentStencilFail;
    GLenum _currentStencilPassDepthFail;
    GLenum _currentStencilPassDepthPass;
    GLboolean _currentDepthWriteMask;
    
    GLboolean _currentAlphaTestEnabled;
    GLenum _currentAlphaTestFunc;
    GLclampf _currentAlphaTestRef;
    
    GLint _mask_layer_le;
};

NS_CC_END
// end of base group
/** @} */
#endif /* StencilStateManager_hpp */