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x: Add region related helper functions

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Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui
2018-09-29 23:36:53 +01:00
parent 3f4c05720d
commit 56f7dd36f6
4 changed files with 89 additions and 1 deletions
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25
src/region.h Normal file
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#pragma once
#include <pixman.h>
#include <stdio.h>
#include "utils.h"
typedef struct pixman_region32 pixman_region32_t;
typedef struct pixman_box32 pixman_box32_t;
typedef pixman_region32_t region_t;
typedef pixman_box32_t rect_t;
RC_TYPE(region_t, rc_region, pixman_region32_init, pixman_region32_fini, static inline)
/// copy a region_t
static inline void
copy_region_(region_t *dst, const region_t *p) {
pixman_region32_copy(dst, (region_t *)p);
}
static inline void
dump_region_(const region_t *x) {
int nrects;
const rect_t *rects = pixman_region32_rectangles((region_t *)x, &nrects);
fprintf(stderr, "nrects: %d\n", nrects);
for (int i = 0; i < nrects; i++)
fprintf(stderr, "(%d, %d) - (%d, %d)\n", rects[i].x1, rects[i].y1, rects[i].x2, rects[i].y2);
}