include/state/cr_pixel.h

/* Copyright (c) 2001, Stanford University
 * All rights reserved.
 *
 * See the file LICENSE.txt for information on redistributing this software.
 */

#ifndef CR_STATE_PIXEL_H
#define CR_STATE_PIXEL_H

#include "state/cr_statetypes.h"
#include "state/cr_limits.h"
#include "cr_bits.h"

#include <iprt/cdefs.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
    CRbitvalue dirty[CR_MAX_BITARRAY];
    CRbitvalue transfer[CR_MAX_BITARRAY];
    CRbitvalue zoom[CR_MAX_BITARRAY];
    CRbitvalue maps[CR_MAX_BITARRAY];
} CRPixelBits;

typedef struct {
    GLboolean   mapColor;
    GLboolean   mapStencil;
    GLint           indexShift;
    GLint           indexOffset;
    GLcolorf    scale;
    GLfloat     depthScale;
    GLcolorf    bias;
    GLfloat     depthBias;
    GLfloat     xZoom;
    GLfloat     yZoom;

    GLint           mapItoI[CR_MAX_PIXEL_MAP_TABLE];
    GLint           mapStoS[CR_MAX_PIXEL_MAP_TABLE];
    GLfloat     mapItoR[CR_MAX_PIXEL_MAP_TABLE];
    GLfloat     mapItoG[CR_MAX_PIXEL_MAP_TABLE];
    GLfloat     mapItoB[CR_MAX_PIXEL_MAP_TABLE];
    GLfloat     mapItoA[CR_MAX_PIXEL_MAP_TABLE];
    GLfloat     mapRtoR[CR_MAX_PIXEL_MAP_TABLE];
    GLfloat     mapGtoG[CR_MAX_PIXEL_MAP_TABLE];
    GLfloat     mapBtoB[CR_MAX_PIXEL_MAP_TABLE];
    GLfloat     mapAtoA[CR_MAX_PIXEL_MAP_TABLE];

    GLint       mapItoIsize;
    GLint       mapStoSsize;
    GLint       mapItoRsize;
    GLint       mapItoGsize;
    GLint       mapItoBsize;
    GLint       mapItoAsize;
    GLint       mapRtoRsize;
    GLint       mapGtoGsize;
    GLint       mapBtoBsize;
    GLint       mapAtoAsize;
} CRPixelState;

DECLEXPORT(void) crStatePixelInit( CRContext *ctx );

DECLEXPORT(void) crStatePixelDiff(CRPixelBits *bb, CRbitvalue *bitID,
                                  CRContext *fromCtx, CRContext *toCtx);
DECLEXPORT(void) crStatePixelSwitch(CRPixelBits *bb, CRbitvalue *bitID,
                                    CRContext *fromCtx, CRContext *toCtx);

#ifdef __cplusplus
}
#endif


#endif /* CR_STATE_PIXEL_H */