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/* Copyright (c) 2001, Stanford University
* All rights reserved.
*
* See the file LICENSE.txt for information on redistributing this software.
*/
#ifndef CR_STATE_BUFFER_H
#define CR_STATE_BUFFER_H
#include "state/cr_statetypes.h"
#include <iprt/cdefs.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct {
CRbitvalue dirty[CR_MAX_BITARRAY];
CRbitvalue enable[CR_MAX_BITARRAY];
CRbitvalue alphaFunc[CR_MAX_BITARRAY];
CRbitvalue depthFunc[CR_MAX_BITARRAY];
CRbitvalue blendFunc[CR_MAX_BITARRAY];
CRbitvalue logicOp[CR_MAX_BITARRAY];
CRbitvalue indexLogicOp[CR_MAX_BITARRAY];
CRbitvalue drawBuffer[CR_MAX_BITARRAY];
CRbitvalue readBuffer[CR_MAX_BITARRAY];
CRbitvalue indexMask[CR_MAX_BITARRAY];
CRbitvalue colorWriteMask[CR_MAX_BITARRAY];
CRbitvalue clearColor[CR_MAX_BITARRAY];
CRbitvalue clearIndex[CR_MAX_BITARRAY];
CRbitvalue clearDepth[CR_MAX_BITARRAY];
CRbitvalue clearAccum[CR_MAX_BITARRAY];
CRbitvalue depthMask[CR_MAX_BITARRAY];
#ifdef CR_EXT_blend_color
CRbitvalue blendColor[CR_MAX_BITARRAY];
#endif
#if defined(CR_EXT_blend_minmax) || defined(CR_EXT_blend_subtract) || defined(CR_EXT_blend_logic_op)
CRbitvalue blendEquation[CR_MAX_BITARRAY];
#endif
#if defined(CR_EXT_blend_func_separate)
CRbitvalue blendFuncSeparate[CR_MAX_BITARRAY];
#endif
} CRBufferBits;
typedef struct {
GLboolean depthTest;
GLboolean blend;
GLboolean alphaTest;
GLboolean logicOp;
GLboolean indexLogicOp;
GLboolean dither;
GLboolean depthMask;
GLenum alphaTestFunc;
GLfloat alphaTestRef;
GLenum depthFunc;
GLenum blendSrcRGB;
GLenum blendDstRGB;
GLenum blendSrcA;
GLenum blendDstA;
GLenum logicOpMode;
GLenum drawBuffer;
GLenum readBuffer;
GLint indexWriteMask;
GLcolorb colorWriteMask;
GLcolorf colorClearValue;
GLfloat indexClearValue;
GLdefault depthClearValue;
GLcolorf accumClearValue;
#ifdef CR_EXT_blend_color
GLcolorf blendColor;
#endif
#if defined(CR_EXT_blend_minmax) || defined(CR_EXT_blend_subtract)
GLenum blendEquation;
#endif
GLint width, height;
GLint storedWidth, storedHeight;
GLvoid *pFrontImg;
GLvoid *pBackImg;
} CRBufferState;
DECLEXPORT(void) crStateBufferInit(CRContext *ctx);
DECLEXPORT(void) crStateBufferDiff(CRBufferBits *bb, CRbitvalue *bitID,
CRContext *fromCtx, CRContext *toCtx);
DECLEXPORT(void) crStateBufferSwitch(CRBufferBits *bb, CRbitvalue *bitID,
CRContext *fromCtx, CRContext *toCtx);
#ifdef __cplusplus
}
#endif
#endif /* CR_STATE_BUFFER_H */
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