diff options
| author | Simon Glass | 2018-10-01 11:55:14 -0600 |
|---|---|---|
| committer | Simon Glass | 2018-10-09 04:40:27 -0600 |
| commit | 55d39911c0579b91a27f0acf3d0c1e123bb29ac1 (patch) | |
| tree | 6494c7650aebd1d22ec3a0d6565f85426d4f46a4 /include/video.h | |
| parent | c3aed5db591ee38068dc2b6d73b04638bd7b7b26 (diff) | |
sandbox: video: Speed up video output
At present there are many situations where sandbox syncs the display to
the SDL frame buffer. This is a very expensive operation but is only
needed every now and then. Update video_sync() so that we can specify
whether this operation is really needed.
At present this flag is not used on other architectures. It could also
be used for reducing writeback-cache flushes but the benefit of that would
need to be investigated.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Diffstat (limited to 'include/video.h')
| -rw-r--r-- | include/video.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/video.h b/include/video.h index e7fc5c94e2e..cd5558f86eb 100644 --- a/include/video.h +++ b/include/video.h @@ -131,8 +131,10 @@ void video_clear(struct udevice *dev); * buffer are displayed to the user. * * @dev: Device to sync + * @force: True to force a sync even if there was one recently (this is + * very expensive on sandbox) */ -void video_sync(struct udevice *vid); +void video_sync(struct udevice *vid, bool force); /** * video_sync_all() - Sync all devices' frame buffers with there hardware |