diff options
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_rect.h')
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_rect.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_rect.h b/mesalib/src/gallium/auxiliary/util/u_rect.h index dd87f81f3..cf29dff0d 100644 --- a/mesalib/src/gallium/auxiliary/util/u_rect.h +++ b/mesalib/src/gallium/auxiliary/util/u_rect.h @@ -30,6 +30,7 @@ #define U_RECT_H #include "pipe/p_compiler.h" +#include "util/u_math.h" #ifdef __cplusplus extern "C" { @@ -67,6 +68,12 @@ u_rect_find_intersection(const struct u_rect *a, } +static INLINE int +u_rect_area(const struct u_rect *r) +{ + return (r->x1 - r->x0) * (r->y1 - r->y0); +} + static INLINE void u_rect_possible_intersection(const struct u_rect *a, struct u_rect *b) @@ -79,6 +86,17 @@ u_rect_possible_intersection(const struct u_rect *a, } } +/* Set @d to a rectangle that covers both @a and @b. + */ +static INLINE void +u_rect_union(struct u_rect *d, const struct u_rect *a, const struct u_rect *b) +{ + d->x0 = MIN2(a->x0, b->x0); + d->y0 = MIN2(a->y0, b->y0); + d->x1 = MAX2(a->x1, b->x1); + d->y1 = MAX2(a->y1, b->y1); +} + #ifdef __cplusplus } #endif |