diff options
Diffstat (limited to 'protocol')
| -rw-r--r-- | protocol/wayland.xml | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/protocol/wayland.xml b/protocol/wayland.xml index b387330..091fa15 100644 --- a/protocol/wayland.xml +++ b/protocol/wayland.xml @@ -1656,16 +1656,18 @@ <description summary="commit pending surface state"> Surface state (input, opaque, and damage regions, attached buffers, etc.) is double-buffered. Protocol requests modify the pending state, - as opposed to the current state in use by the compositor. A commit - request atomically applies all pending state, replacing the current - state. After commit, the new pending state is as documented for each - related request. + as opposed to the active state in use by the compositor. - On commit, a pending wl_buffer is applied first, and all other state - second. This means that all coordinates in double-buffered state are - relative to the new wl_buffer coming into use, except for - wl_surface.attach itself. If there is no pending wl_buffer, the - coordinates are relative to the current surface contents. + A commit request atomically creates a content update from the pending + state, even if the pending state has not been touched. The content + update is placed in a queue until it becomes active. After commit, the + new pending state is as documented for each related request. + + When the content update is applied, the wl_buffer is applied before all + other state. This means that all coordinates in double-buffered state + are relative to the newly attached wl_buffers, except for + wl_surface.attach itself. If there is no newly attached wl_buffer, the + coordinates are relative to the previous content update. All requests that need a commit to become effective are documented to affect double-buffered state. |