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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_REGCOMBINER_H
#define CR_STATE_REGCOMBINER_H
#include "state/cr_statetypes.h"
#include "state/cr_limits.h"
#include <iprt/cdefs.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct {
GLenum a, b, c, d;
GLenum aMapping, bMapping, cMapping, dMapping;
GLenum aPortion, bPortion, cPortion, dPortion;
GLenum scale, bias;
GLenum abOutput, cdOutput, sumOutput;
GLboolean abDotProduct, cdDotProduct, muxSum;
} CRRegCombinerPortionState;
typedef struct {
GLboolean enabledRegCombiners;
GLboolean enabledPerStageConstants;
GLcolorf constantColor0;
GLcolorf constantColor1;
GLcolorf stageConstantColor0[CR_MAX_GENERAL_COMBINERS];
GLcolorf stageConstantColor1[CR_MAX_GENERAL_COMBINERS];
GLboolean colorSumClamp;
GLint numGeneralCombiners;
CRRegCombinerPortionState rgb[CR_MAX_GENERAL_COMBINERS];
CRRegCombinerPortionState alpha[CR_MAX_GENERAL_COMBINERS];
GLenum a, b, c, d, e, f, g;
GLenum aMapping, bMapping, cMapping, dMapping, eMapping, fMapping, gMapping;
GLenum aPortion, bPortion, cPortion, dPortion, ePortion, fPortion, gPortion;
} CRRegCombinerState;
typedef struct {
CRbitvalue dirty[CR_MAX_BITARRAY];
CRbitvalue enable[CR_MAX_BITARRAY];
CRbitvalue regCombinerVars[CR_MAX_BITARRAY]; /* numGeneralCombiners, colorSumClamp */
CRbitvalue regCombinerColor0[CR_MAX_BITARRAY];
CRbitvalue regCombinerColor1[CR_MAX_BITARRAY];
CRbitvalue regCombinerStageColor0[CR_MAX_GENERAL_COMBINERS][CR_MAX_BITARRAY];
CRbitvalue regCombinerStageColor1[CR_MAX_GENERAL_COMBINERS][CR_MAX_BITARRAY];
CRbitvalue regCombinerInput[CR_MAX_GENERAL_COMBINERS][CR_MAX_BITARRAY]; /* rgb/alpha[].a/b/c/d, .aMapping, .aPortion */
CRbitvalue regCombinerOutput[CR_MAX_GENERAL_COMBINERS][CR_MAX_BITARRAY]; /* rgb/alpha[].abOutput, .cdOutput, .sumOutput, .scale, .bias, .abDotProduct, .cdDotProduct, .muxSum */
CRbitvalue regCombinerFinalInput[CR_MAX_BITARRAY]; /* a/b/c/d/e/f/g, aMapping, aPortion */
} CRRegCombinerBits;
DECLEXPORT(void) crStateRegCombinerInit( CRContext *ctx );
DECLEXPORT(void) crStateRegCombinerDiff(CRRegCombinerBits *b, CRbitvalue *bitID,
CRContext *fromCtx, CRContext *toCtx);
DECLEXPORT(void) crStateRegCombinerSwitch( CRRegCombinerBits *b, CRbitvalue *bitID,
CRContext *fromCtx, CRContext *toCtx );
#ifdef __cplusplus
}
#endif
#endif /* CR_STATE_REGCOMBINER_H */
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