diff options
Diffstat (limited to 'spec/main.tex')
| -rw-r--r-- | spec/main.tex | 33 |
1 files changed, 30 insertions, 3 deletions
diff --git a/spec/main.tex b/spec/main.tex index 741c4e0..756bf38 100644 --- a/spec/main.tex +++ b/spec/main.tex @@ -162,7 +162,7 @@ The message header has 2 words in it: \end{itemize} The payload describes the request/event arguments. Every argument is always -aligned to 32-bit. There is no prefix that describes the type, but it is +aligned to 32-bits. There is no prefix that describes the type, but it is inferred implicitly from the xml specification. The representation of argument types are as follows: @@ -174,7 +174,7 @@ The representation of argument types are as follows: 32-bit boundary. \item "object": A 32-bit object ID. \item "new\_id": the 32-bit object ID. On requests, the client - decides the ID. The only event with "new\_id" is advertisements of + decides the ID. The only events with "new\_id" are advertisements of globals, and the server will use IDs below 0x10000. \item "array": Starts with 32-bit array size in bytes, followed by the array contents verbatim, and finally padding to a 32-bit boundary. @@ -182,6 +182,33 @@ The representation of argument types are as follows: the ancillary data of the UNIX domain socket message (msg\_control). \end{itemize} +\subsection{Interfaces} + +The protocol includes several interfaces which are used for +interacting with the server. Each interface provides requests, +events, and errors (which are really just special events) as described +above. Specific compositor implementations may have their own +interfaces provided as extensions, but there are several which are +always expected to be present. + +Core interfaces: +\begin{itemize} +\item wl_display: provides global functionality like objecting binding and fatal error events +\item wl_callback: callback interface for dnoe events +\item wl_compositor: core compositor interface, allows surface creation +\item wl_shm: buffer management interface with buffer creation and format handling +\item wl_buffer: buffer handling interface for indicating damage and object destruction, also provides buffer release events from the server +\item wl_data_offer: for accepting and receiving specific mime types +\item wl_data_source: for offering specific mime types +\item wl_data_Device: lets clients manage drag & drop, provides pointer enter/leave events and motion +\item wl_data_device_manager: for managing data sources and devices +\item wl_shell: shell surface handling +\item wl_shell_surface: shell surface handling and desktop-like events (e.g. set a surface to fullscreen, display a popup, etc.) +\item wl_surface: surface management (destruction, damage, buffer attach, frame handling) +\item wl_input_device: cursor setting, motion, button, and key events, etc. +\item wl_output: events describing an attached output (subpixel orientation, current mode & geometry, etc.) +\end{itemize} + \subsection{Connect Time} \begin{itemize} @@ -228,7 +255,7 @@ The compositor is a global object, advertised at connect time. \begin{itemize} \item a global object -\item broadcasts drm file name, or at least a string like drm:/dev/card0 +\item broadcasts drm file name, or at least a string like drm:/dev/dri/card0 \item commit/ack/frame protocol \end{itemize} |