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cogl-hello: use new _add_frame_callback api

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This updates cogl-hello to use the new
cogl_onscreen_add_frame_callback() api to use _SYNC events for
throttling.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit 06d3cb0d99944e0150e30d553d248feb5f049000)
This commit is contained in:
Robert Bragg 2013-01-29 16:08:36 +00:00
parent 24733abf68
commit 51c1b3fbff
1 changed files with 11 additions and 14 deletions
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21
examples/cogl-hello.c
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@ -19,19 +19,16 @@ paint_cb (void *user_data)
cogl_framebuffer_draw_primitive (data->fb, data->pipeline, data->triangle);
cogl_onscreen_swap_buffers (COGL_ONSCREEN (data->fb));
/* If the driver can deliver swap complete events then we can remove
* the idle paint callback until we next get a swap complete event
* otherwise we keep the idle paint callback installed and simply
* paint as fast as the driver will allow... */
if (cogl_has_feature (data->ctx, COGL_FEATURE_ID_SWAP_BUFFERS_EVENT))
return FALSE; /* remove the callback */
else
return TRUE;
}
static void
swap_complete_cb (CoglFramebuffer *framebuffer, void *user_data)
frame_event_cb (CoglOnscreen *onscreen,
CoglFrameEvent event,
CoglFrameInfo *info,
void *user_data)
{
if (event == COGL_FRAME_EVENT_SYNC)
g_idle_add (paint_cb, user_data);
}
@ -70,10 +67,10 @@ main (int argc, char **argv)
g_source_attach (cogl_source, NULL);
if (cogl_has_feature (data.ctx, COGL_FEATURE_ID_SWAP_BUFFERS_EVENT))
cogl_onscreen_add_swap_buffers_callback (COGL_ONSCREEN (data.fb),
swap_complete_cb, &data);
cogl_onscreen_add_frame_callback (COGL_ONSCREEN (data.fb),
frame_event_cb,
&data,
NULL); /* destroy notify */
g_idle_add (paint_cb, &data);
loop = g_main_loop_new (NULL, TRUE);