diff options
| author | Jamie Gennis <jgennis@google.com> | 2012-04-30 12:50:38 -0700 |
|---|---|---|
| committer | Jamie Gennis <jgennis@google.com> | 2012-04-30 12:50:38 -0700 |
| commit | 185b300d6a33673daa69fbea6056e91c4390e158 (patch) | |
| tree | f44dabc333d9c26c4306ec85f6f4704d362b607c /include/system | |
| parent | ce182cb8c00d0f5dedadbd4964dbc8cb705b8550 (diff) | |
| download | system_core-185b300d6a33673daa69fbea6056e91c4390e158.zip system_core-185b300d6a33673daa69fbea6056e91c4390e158.tar.gz system_core-185b300d6a33673daa69fbea6056e91c4390e158.tar.bz2 | |
graphics.h: clarify docs about stride for YV12
This change makes it clearer how to derive the stride of the Cr and Cb plane
from the stride of the Y plane for the YV12 pixel format.
Change-Id: I54a9a20f35224bd583e25c615014cc8d830a1dd0
Diffstat (limited to 'include/system')
| -rw-r--r-- | include/system/graphics.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/system/graphics.h b/include/system/graphics.h index e206e3e..24e2bfb 100644 --- a/include/system/graphics.h +++ b/include/system/graphics.h @@ -78,7 +78,8 @@ enum { * - a vertical stride equal to the height * * y_size = stride * height - * c_size = ALIGN(stride/2, 16) * height/2 + * c_stride = ALIGN(stride/2, 16) + * c_size = c_stride * height/2 * size = y_size + c_size * 2 * cr_offset = y_size * cb_offset = y_size + c_size |