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compositor-x11: Call finish_frame from a timer callback

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The repaint logic breaks when finish_frame is called from the present
callback.  Ideally we should throttle to vsync (or even better, the
compositor repaint cycle, but hey, X is X), but this goes a long way.
This commit is contained in:
Kristian Høgsberg
2011-10-29 14:39:13 -04:00
parent 3ff589df78
commit 06a670f2e7
1 changed files with 21 additions and 5 deletions
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compositor/compositor-x11.c
+21 -5
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@@ -77,6 +77,7 @@ struct x11_output {
xcb_window_t window;
EGLSurface egl_surface;
struct wlsc_mode mode;
struct wl_event_source *finish_frame_timer;
};
struct x11_input {
@@ -179,22 +180,32 @@ x11_output_prepare_render(struct wlsc_output *output_base)
return 0;
}
static int
finish_frame_handler(void *data)
{
struct x11_output *output = data;
uint32_t msec;
struct timeval tv;
gettimeofday(&tv, NULL);
msec = tv.tv_sec * 1000 + tv.tv_usec / 1000;
wlsc_output_finish_frame(&output->base, msec);
return 1;
}
static int
x11_output_present(struct wlsc_output *output_base)
{
struct x11_output *output = (struct x11_output *) output_base;
struct wlsc_compositor *ec = output->base.compositor;
struct timeval tv;
uint32_t msec;
if (x11_output_prepare_render(&output->base))
return -1;
eglSwapBuffers(ec->display, output->egl_surface);
gettimeofday(&tv, NULL);
msec = tv.tv_sec * 1000 + tv.tv_usec / 1000;
wlsc_output_finish_frame(&output->base, msec);
wl_event_source_timer_update(output->finish_frame_timer, 10);
return 0;
}
@@ -319,6 +330,7 @@ x11_compositor_create_output(struct x11_compositor *c, int x, int y,
struct x11_output *output;
xcb_screen_iterator_t iter;
struct wm_normal_hints normal_hints;
struct wl_event_loop *loop;
uint32_t mask = XCB_CW_EVENT_MASK | XCB_CW_CURSOR;
uint32_t values[2] = {
XCB_EVENT_MASK_KEY_PRESS |
@@ -412,6 +424,10 @@ x11_compositor_create_output(struct x11_compositor *c, int x, int y,
return -1;
}
loop = wl_display_get_event_loop(c->base.wl_display);
output->finish_frame_timer =
wl_event_loop_add_timer(loop, finish_frame_handler, output);
output->base.prepare_render = x11_output_prepare_render;
output->base.present = x11_output_present;
output->base.prepare_scanout_surface =