sna/video: Discard old video buffers when the frame size changes

Back in the good old days of the overlay, we only needed to care about
having a frame buffer large enough to hold the data. This changed with
the sprite interface which encodes the width x height into the
framebuffer and so we need to be careful when handing back a cached
buffer that it does indeed match the required dimensions.

Reported-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/sna/sna_video.h b/src/sna/sna_video.h
index cbb3ea3b..996377bd 100644
--- a/src/sna/sna_video.h
+++ b/src/sna/sna_video.h
@@ -92,6 +92,7 @@ struct sna_video {
 	/** YUV data buffers */
 	struct kgem_bo *old_buf[2];
 	struct kgem_bo *buf;
+	int width, height;
 
 	int alignment;
 	bool tiled;