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Implement support for video_max_swapchain_images setting.

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This commit is contained in:
Mikael Brunnhede 2016-10-17 11:23:34 +02:00
parent 80dc3bec09
commit 2cb9c912f4
1 changed files with 23 additions and 7 deletions
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30
gfx/drivers/dispmanx_gfx.c
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@ -302,12 +302,17 @@ static void dispmanx_surface_update(void *data, const void *frame,
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);
settings_t *settings = config_get_ptr();
if (settings->video.max_swapchain_images >= 3)
{
/* 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);
@ -324,8 +329,19 @@ static void dispmanx_surface_update(void *data, const void *frame,
vc_dispmanx_update_submit(_dispvars->update, dispmanx_vsync_callback, (void*)page);
slock_lock(_dispvars->pending_mutex);
_dispvars->pageflip_pending++;
_dispvars->pageflip_pending++;
slock_unlock(_dispvars->pending_mutex);
if (settings->video.max_swapchain_images <= 2)
{
/* Wait for page flip before continuing, i.e. do not allow core to run
* ahead. This reduces input lag, but is less forgiving performance-
* wise. */
slock_lock(_dispvars->pending_mutex);
if (_dispvars->pageflip_pending > 0)
scond_wait(_dispvars->vsync_condition, _dispvars->pending_mutex);
slock_unlock(_dispvars->pending_mutex);
}
}
/* Enable/disable bilinear filtering. */