#ifndef INTEL_ROTATE_H #define INTEL_ROTATE_H 1 struct matrix23 { int m00, m01, m02; int m10, m11, m12; }; extern void matrix23Set(struct matrix23 *m, int m00, int m01, int m02, int m10, int m11, int m12); extern void matrix23TransformCoordi(const struct matrix23 *m, int *x, int *y); extern void matrix23TransformCoordf(const struct matrix23 *m, float *x, float *y); extern void matrix23TransformDistance(const struct matrix23 *m, int *xDist, int *yDist); extern void matrix23TransformRect(const struct matrix23 *m, int *x, int *y, int *w, int *h); extern void matrix23Rotate(struct matrix23 *m, int width, int height, int angle); extern void matrix23Flip(struct matrix23 *m, int width, int height, int xflip, int yflip); extern void matrix23Multiply(struct matrix23 *result, const struct matrix23 *a, const struct matrix23 *b); #endif /* INTEL_ROTATE_H */