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improve endianess handeling

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Kevin Hamacher 2016-03-31 13:51:06 +02:00 committed by Kevin Hamacher
parent 4885a6c423
commit 3953b064f5
1 changed files with 9 additions and 14 deletions
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23
sway/border.c
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@ -8,21 +8,16 @@
#include "config.h" #include "config.h"
#include "client/pango.h" #include "client/pango.h"
#include <arpa/inet.h>
void cairo_set_source_u32(cairo_t *cairo, uint32_t color) { void cairo_set_source_u32(cairo_t *cairo, uint32_t color) {
int endian = 1; color = htonl(color);
if (*(char *)&endian == 1) { // little endian
cairo_set_source_rgba(cairo, cairo_set_source_rgba(cairo,
(color >> (1*8) & 0xFF) / 255.0, (color >> (2*8) & 0xFF) / 255.0,
(color >> (2*8) & 0xFF) / 255.0, (color >> (1*8) & 0xFF) / 255.0,
(color >> (3*8) & 0xFF) / 255.0, (color >> (0*8) & 0xFF) / 255.0,
(color >> (0*8) & 0xFF) / 255.0); (color >> (3*8) & 0xFF) / 255.0);
} else { // big endian
cairo_set_source_rgba(cairo,
(color >> (0*8) & 0xFF) / 255.0,
(color >> (3*8) & 0xFF) / 255.0,
(color >> (2*8) & 0xFF) / 255.0,
(color >> (1*8) & 0xFF) / 255.0);
}
} }
static cairo_t *create_border_buffer(swayc_t *view, struct wlc_geometry geo, cairo_surface_t **surface) { static cairo_t *create_border_buffer(swayc_t *view, struct wlc_geometry geo, cairo_surface_t **surface) {