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refactor: break out stride calculation to new function

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Daniel Eklöf 2019-08-18 17:59:43 +02:00
parent 8aa53d1508
commit 33b5210a6a
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3 changed files with 13 additions and 6 deletions
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6
shm.c
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@ -11,6 +11,7 @@
#define LOG_MODULE "shm"
#include "log.h"
#include "stride.h"
#include "tllist.h"
static tll(struct buffer) buffers;
@ -69,10 +70,7 @@ shm_get_buffer(struct wl_shm *shm, int width, int height, size_t copies)
goto err;
}
/* TODO: copied from font.c */
/* Calculate stride. Copied from cairoint.h:CAIRO_STRIDE_FOR_WIDTH_BPP */
int bpp = 32;
const int stride = (((bpp * width + 7) / 8 + 4 - 1) & -4);
const int stride = stride_for_format_and_width(PIXMAN_a8r8g8b8, width);
/* Total size */
size = stride * height;