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shared: introduce timespec-util.h

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Copyright is set according to the moved code from compositor.c.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
This commit is contained in:
Pekka Paalanen
2015-07-03 15:44:50 +03:00
parent c1809b230c
commit aa21f6249f
3 changed files with 63 additions and 20 deletions
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src/compositor.c
+1 -20
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@@ -58,31 +58,12 @@
#include "presentation_timing-server-protocol.h"
#include "shared/helpers.h"
#include "shared/os-compatibility.h"
#include "shared/timespec-util.h"
#include "git-version.h"
#include "version.h"
#define DEFAULT_REPAINT_WINDOW 7 /* milliseconds */
#define NSEC_PER_SEC 1000000000
static void
timespec_sub(struct timespec *r,
const struct timespec *a, const struct timespec *b)
{
r->tv_sec = a->tv_sec - b->tv_sec;
r->tv_nsec = a->tv_nsec - b->tv_nsec;
if (r->tv_nsec < 0) {
r->tv_sec--;
r->tv_nsec += NSEC_PER_SEC;
}
}
static int64_t
timespec_to_nsec(const struct timespec *a)
{
return (int64_t)a->tv_sec * NSEC_PER_SEC + a->tv_nsec;
}
static void
weston_output_transform_scale_init(struct weston_output *output,
uint32_t transform, uint32_t scale);