| 1 | /* Copyright (c) 2001, Stanford University
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| 2 | * All rights reserved.
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| 3 | *
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| 4 | * See the file LICENSE.txt for information on redistributing this software.
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| 5 | */
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| 6 |
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| 7 | #ifndef CR_STATE_FEEDBACK_H
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| 8 | #define CR_STATE_FEEDBACK_H
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| 9 |
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| 10 | #include "state/cr_statetypes.h"
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| 11 |
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| 12 | #include <iprt/cdefs.h>
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| 13 |
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| 14 | #ifdef __cplusplus
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| 15 | extern "C" {
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| 16 | #endif
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| 17 |
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| 18 | #define MAX_NAME_STACK_DEPTH 64
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| 19 |
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| 20 | typedef struct {
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| 21 | CRbitvalue dirty[CR_MAX_BITARRAY];
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| 22 | } CRFeedbackBits;
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| 23 |
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| 24 | typedef struct {
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| 25 | CRbitvalue dirty[CR_MAX_BITARRAY];
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| 26 | } CRSelectionBits;
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| 27 |
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| 28 | typedef struct {
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| 29 | GLenum type;
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| 30 | GLuint mask;
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| 31 | GLfloat *buffer;
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| 32 | GLuint bufferSize;
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| 33 | GLuint count;
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| 34 | } CRFeedbackState;
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| 35 |
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| 36 | typedef struct {
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| 37 | GLuint *buffer;
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| 38 | GLuint bufferSize;
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| 39 | GLuint bufferCount;
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| 40 | GLuint hits;
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| 41 | GLuint nameStackDepth;
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| 42 | GLuint nameStack[MAX_NAME_STACK_DEPTH];
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| 43 | GLboolean hitFlag;
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| 44 | GLfloat hitMinZ, hitMaxZ;
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| 45 | } CRSelectionState;
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| 46 |
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| 47 | extern DECLEXPORT(void) crStateFeedbackDiff(CRFeedbackState *from, CRFeedbackState *to,
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| 48 | CRFeedbackBits *bb, CRbitvalue *bitID);
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| 49 | extern DECLEXPORT(void) crStateFeedbackSwitch(CRFeedbackBits *bb, CRbitvalue *bitID,
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| 50 | CRFeedbackState *from, CRFeedbackState *to);
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| 51 |
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| 52 | #ifdef __cplusplus
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| 53 | }
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| 54 | #endif
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| 55 |
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| 56 | #endif /* CR_STATE_FEEDBACK_H */
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