diff options
| author | Simon Ser <[email protected]> | 2020-05-28 12:27:07 +0200 |
|---|---|---|
| committer | Marge Bot <[email protected]> | 2020-06-03 10:09:52 +0000 |
| commit | 907bacea13fff7939edf67fba5b3a6eaf9f1f5dc (patch) | |
| tree | e6c418c6b42e465d46a25052131ed6ab6f317ff0 /src | |
| parent | 9f3956fea080d73d98fc28bc8cd148755b597b74 (diff) | |
gbm: document that gbm_bo_map exposes a linear view
Drivers (Gallium, i965) expose a linear view of the buffer via
gbm_bo_map.
Signed-off-by: Simon Ser <[email protected]>
Reviewed-by: Daniel Stone <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5238>
Diffstat (limited to 'src')
| -rw-r--r-- | src/gbm/main/gbm.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/gbm/main/gbm.c b/src/gbm/main/gbm.c index ceeed5082e9..954b3c35b0d 100644 --- a/src/gbm/main/gbm.c +++ b/src/gbm/main/gbm.c @@ -534,6 +534,11 @@ gbm_bo_import(struct gbm_device *gbm, * This function maps a region of a gbm bo for cpu read and/or write * access. * + * The mapping exposes a linear view of the buffer object even if the buffer + * has a non-linear modifier. + * + * This function may require intermediate buffer copies (ie. it may be slow). + * * \param bo The buffer object * \param x The X (top left origin) starting position of the mapped region for * the buffer |