static void dispmanx_surface_update(void *data, const void *frame, struct dispmanx_surface *surface)
{
struct dispmanx_video *_dispvars = data;
struct dispmanx_page *page = NULL;
/* Wait until last issued flip completes to get a free page. Also,
dispmanx doesn't support issuing more than one pageflip.*/
slock_lock(_dispvars->pending_mutex);
if (_dispvars->pageflip_pending > 0)
{
scond_wait(_dispvars->vsync_condition, _dispvars->pending_mutex);
}
slock_unlock(_dispvars->pending_mutex);
page = dispmanx_get_free_page(_dispvars, surface);
/* Frame blitting */
vc_dispmanx_resource_write_data(page->resource, surface->pixformat,
surface->pitch, (void*)frame, &(surface->bmp_rect));
/* Issue a page flip that will be done at the next vsync. */
_dispvars->update = vc_dispmanx_update_start(0);
vc_dispmanx_element_change_source(_dispvars->update, surface->element,
page->resource);
vc_dispmanx_update_submit(_dispvars->update, dispmanx_vsync_callback, (void*)page);
slock_lock(_dispvars->pending_mutex);
_dispvars->pageflip_pending++;
slock_unlock(_dispvars->pending_mutex);
}
static void dispmanx_update_main(void *data, const void *frame)
{
struct dispmanx_page *page = NULL;
struct dispmanx_video *_dispvars = data;
if (!_dispvars)
return;
page = dispmanx_get_free_page(_dispvars);
if (!page)
return;
/* Frame blitting */
vc_dispmanx_resource_write_data(_dispvars->resources[page->numpage], _dispvars->pixFormat,
_dispvars->pitch, (void *)frame, &(_dispvars->bmpRect));
/* Issue flipping: we send the page
* to the dispmanx API internal flipping FIFO stack. */
dispmanx_flip (page, _dispvars);
}
