draw_tests.h

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#ifndef __DRAW_TESTS_H__
#define __DRAW_TESTS_H__
 
#include <tamtypes.h>
#include <draw_buffers.h>
 
/*& Alpha Testing */
#define ATEST_METHOD_ALLFAIL        0
#define ATEST_METHOD_ALLPASS        1
#define ATEST_METHOD_LESS           2
#define ATEST_METHOD_LESS_EQUAL     3
#define ATEST_METHOD_EQUAL          4
#define ATEST_METHOD_GREATER_EQUAL  5
#define ATEST_METHOD_GREATER        6
#define ATEST_METHOD_NOTEQUAL       7
 
#define ATEST_KEEP_ALL              0
#define ATEST_KEEP_ZBUFFER          1
#define ATEST_KEEP_FRAMEBUFFER      2
#define ATEST_KEEP_ALPHA            3
 
#define DTEST_METHOD_PASS_ZERO      0
#define DTEST_METHOD_PASS_ONE       1
 
#define ZTEST_METHOD_ALLFAIL        0
#define ZTEST_METHOD_ALLPASS        1
#define ZTEST_METHOD_GREATER_EQUAL  2
#define ZTEST_METHOD_GREATER        3
 
typedef struct {
    unsigned char enable;
    unsigned char method;
    unsigned char compval;
    unsigned char keep;
} atest_t;
 
typedef struct {
    unsigned char enable;
    unsigned char pass;
} dtest_t;
 
typedef struct {
    unsigned char enable;
    unsigned char method;
} ztest_t;
 
#ifdef __cplusplus
extern "C" {
#endif
 
extern qword_t *draw_scissor_area(qword_t *q, int context, int x0, int x1, int y0, int y1);
 
extern qword_t *draw_pixel_test(qword_t *q, int context, atest_t *atest, dtest_t *dtest, ztest_t *ztest);
 
extern qword_t *draw_disable_tests(qword_t *q, int context, zbuffer_t *z);
 
extern qword_t *draw_enable_tests(qword_t *q, int context, zbuffer_t *z);
 
#ifdef __cplusplus
}
#endif
 
#endif /* __DRAW_TESTS_H__ */