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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_FOG_H
#define CR_STATE_FOG_H
#include "state/cr_statetypes.h"
#include <iprt/cdefs.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct {
CRbitvalue dirty[CR_MAX_BITARRAY];
CRbitvalue color[CR_MAX_BITARRAY];
CRbitvalue index[CR_MAX_BITARRAY];
CRbitvalue density[CR_MAX_BITARRAY];
CRbitvalue start[CR_MAX_BITARRAY];
CRbitvalue end[CR_MAX_BITARRAY];
CRbitvalue mode[CR_MAX_BITARRAY];
CRbitvalue enable[CR_MAX_BITARRAY];
#ifdef CR_NV_fog_distance
CRbitvalue fogDistanceMode[CR_MAX_BITARRAY];
#endif
#ifdef CR_EXT_fog_coord
CRbitvalue fogCoordinateSource[CR_MAX_BITARRAY];
#endif
} CRFogBits;
typedef struct {
GLcolorf color;
GLint index;
GLfloat density;
GLfloat start;
GLfloat end;
GLint mode;
GLboolean enable;
#ifdef CR_NV_fog_distance
GLenum fogDistanceMode;
#endif
#ifdef CR_EXT_fog_coord
GLenum fogCoordinateSource;
#endif
} CRFogState;
DECLEXPORT(void) crStateFogInit(CRContext *ctx);
DECLEXPORT(void) crStateFogDiff(CRFogBits *bb, CRbitvalue *bitID,
CRContext *fromCtx, CRContext *toCtx);
DECLEXPORT(void) crStateFogSwitch(CRFogBits *bb, CRbitvalue *bitID,
CRContext *fromCtx, CRContext *toCtx);
#ifdef __cplusplus
}
#endif
#endif /* CR_STATE_FOG_H */
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