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Code Issues Releases Wiki Activity

overlay: Take a snapshot on SIGUSR1

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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2013-08-20 19:24:33 +01:00
parent 57e573ecc1
commit 5cb8c77d69
1 changed files with 17 additions and 0 deletions
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17
overlay/overlay.c
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@ -8,6 +8,7 @@
#include <unistd.h> #include <unistd.h>
#include <fcntl.h> #include <fcntl.h>
#include <errno.h> #include <errno.h>
#include <signal.h>
#include "overlay.h" #include "overlay.h"
#include "chart.h" #include "chart.h"
@ -556,6 +557,13 @@ static void show_gem_objects(struct overlay_context *ctx, struct overlay_gem_obj
} }
} }
static int take_snapshot;
static void signal_snapshot(int sig)
{
take_snapshot = sig;
}
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
struct overlay_context ctx; struct overlay_context ctx;
@ -566,6 +574,8 @@ int main(int argc, char **argv)
return 0; return 0;
} }
signal(SIGUSR1, signal_snapshot);
ctx.width = 640; ctx.width = 640;
ctx.height = 236; ctx.height = 236;
ctx.surface = x11_overlay_create(POS_TOP_RIGHT, &ctx.width, &ctx.height); ctx.surface = x11_overlay_create(POS_TOP_RIGHT, &ctx.width, &ctx.height);
@ -609,6 +619,13 @@ int main(int argc, char **argv)
cairo_destroy(ctx.cr); cairo_destroy(ctx.cr);
overlay_show(ctx.surface); overlay_show(ctx.surface);
if (take_snapshot) {
char buf[80];
sprintf(buf, "overlay-snapshot-%d.png", i-1);
cairo_surface_write_to_png(ctx.surface, buf);
take_snapshot = 0;
}
} }
return 0; return 0;