diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2013-02-01 00:19:21 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2013-02-01 00:22:57 +0000 |
| commit | cf0576f87102b1535268691e7e29661b0f9ee73b (patch) | |
| tree | f8e6d51107f16129bb7c78e32558f8ce830390a8 /src/sna | |
| parent | 268285d9a64fc47fe81fe5bfbfbd1890dad53e1e (diff) | |
sna/video: Correct computation of planar frame size
The total frame size is less than 3 times the subsampled chroma planes
due to the additional alignment bytes.
Bugzilla: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1104180
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'src/sna')
| -rw-r--r-- | src/sna/sna_video.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/src/sna/sna_video.c b/src/sna/sna_video.c index 05d76dda..07fa829f 100644 --- a/src/sna/sna_video.c +++ b/src/sna/sna_video.c @@ -215,19 +215,22 @@ sna_video_frame_init(struct sna *sna, align = 1024; #endif - /* Determine the desired destination pitch (representing the chroma's pitch, - * in the planar case. + /* Determine the desired destination pitch (representing the + * chroma's pitch in the planar case). */ if (is_planar_fourcc(id)) { + assert((width & 1) == 0); + assert((height & 1) == 0); if (video->rotation & (RR_Rotate_90 | RR_Rotate_270)) { frame->pitch[0] = ALIGN((height / 2), align); frame->pitch[1] = ALIGN(height, align); - frame->size = 3U * frame->pitch[0] * width; + frame->size = width; } else { frame->pitch[0] = ALIGN((width / 2), align); frame->pitch[1] = ALIGN(width, align); - frame->size = 3U * frame->pitch[0] * height; + frame->size = height; } + frame->size *= frame->pitch[0] + frame->pitch[1]; } else { if (video->rotation & (RR_Rotate_90 | RR_Rotate_270)) { frame->pitch[0] = ALIGN((height << 1), align); |