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overlay: Generate unique name for snapshots

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Since we no longer increment the counter every frame, we need to use a
timestamp instead.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2013-08-28 12:37:14 +01:00
parent a18023f678
commit 9bebbbc49b
1 changed files with 9 additions and 3 deletions
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12
overlay/overlay.c
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@ -34,6 +34,7 @@
#include <errno.h> #include <errno.h>
#include <signal.h> #include <signal.h>
#include <getopt.h> #include <getopt.h>
#include <time.h>
#include "overlay.h" #include "overlay.h"
#include "chart.h" #include "chart.h"
@ -754,6 +755,13 @@ static int get_sample_period(struct config *config)
return 500000; return 500000;
} }
static void overlay_snapshot(struct overlay_context *ctx)
{
char buf[1024];
sprintf(buf, "/tmp/overlay-snapshot-%ld.png", (long)time(NULL));
cairo_surface_write_to_png(ctx->surface, buf);
}
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
static struct option long_options[] = { static struct option long_options[] = {
@ -853,9 +861,7 @@ int main(int argc, char **argv)
overlay_show(ctx.surface); overlay_show(ctx.surface);
if (take_snapshot) { if (take_snapshot) {
char buf[80]; overlay_snapshot(&ctx);
sprintf(buf, "overlay-snapshot-%d.png", i-1);
cairo_surface_write_to_png(ctx.surface, buf);
take_snapshot = 0; take_snapshot = 0;
} }