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// GENERATED FILE -- DO NOT EDIT
//
// Copyright © 2014, 2015 Collabora, Ltd.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice (including the next
// paragraph) shall be included in all copies or substantial portions of the
// Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
#![allow(warnings)]
#![allow(clippy::all)]
use anyhow;
#[allow(unused_imports)]
use fuchsia_wayland_core::{Array, Enum, Fixed, NewId, NewObject};
use fuchsia_wayland_core::{ArgKind, Arg, FromArgs, IntoMessage, Message,
MessageGroupSpec, MessageHeader, MessageSpec, MessageType,
ObjectId, EncodeError, DecodeError, Interface};
#[allow(unused_imports)]
use wayland_client_protocol::*;
pub mod zwp_linux_dmabuf_v1 {
use super::*;
/// factory for creating dmabuf-based wl_buffers
///
/// Following the interfaces from:
/// https://www.khronos.org/registry/egl/extensions/EXT/EGL_EXT_image_dma_buf_import.txt
/// and the Linux DRM sub-system's AddFb2 ioctl.
///
/// This interface offers ways to create generic dmabuf-based
/// wl_buffers. Immediately after a client binds to this interface,
/// the set of supported formats and format modifiers is sent with
/// 'format' and 'modifier' events.
///
/// The following are required from clients:
///
/// - Clients must ensure that either all data in the dma-buf is
/// coherent for all subsequent read access or that coherency is
/// correctly handled by the underlying kernel-side dma-buf
/// implementation.
///
/// - Don't make any more attachments after sending the buffer to the
/// compositor. Making more attachments later increases the risk of
/// the compositor not being able to use (re-import) an existing
/// dmabuf-based wl_buffer.
///
/// The underlying graphics stack must ensure the following:
///
/// - The dmabuf file descriptors relayed to the server will stay valid
/// for the whole lifetime of the wl_buffer. This means the server may
/// at any time use those fds to import the dmabuf into any kernel
/// sub-system that might accept it.
///
/// To create a wl_buffer from one or more dmabufs, a client creates a
/// zwp_linux_dmabuf_params_v1 object with a zwp_linux_dmabuf_v1.create_params
/// request. All planes required by the intended format are added with
/// the 'add' request. Finally, a 'create' or 'create_immed' request is
/// issued, which has the following outcome depending on the import success.
///
/// The 'create' request,
/// - on success, triggers a 'created' event which provides the final
/// wl_buffer to the client.
/// - on failure, triggers a 'failed' event to convey that the server
/// cannot use the dmabufs received from the client.
///
/// For the 'create_immed' request,
/// - on success, the server immediately imports the added dmabufs to
/// create a wl_buffer. No event is sent from the server in this case.
/// - on failure, the server can choose to either:
/// - terminate the client by raising a fatal error.
/// - mark the wl_buffer as failed, and send a 'failed' event to the
/// client. If the client uses a failed wl_buffer as an argument to any
/// request, the behaviour is compositor implementation-defined.
///
/// Warning! The protocol described in this file is experimental and
/// backward incompatible changes may be made. Backward compatible changes
/// may be added together with the corresponding interface version bump.
/// Backward incompatible changes are done by bumping the version number in
/// the protocol and interface names and resetting the interface version.
/// Once the protocol is to be declared stable, the 'z' prefix and the
/// version number in the protocol and interface names are removed and the
/// interface version number is reset.
#[derive(Debug)]
pub struct ZwpLinuxDmabufV1;
impl Interface for ZwpLinuxDmabufV1 {
const NAME: &'static str = "zwp_linux_dmabuf_v1";
const VERSION: u32 = 3;
const REQUESTS: MessageGroupSpec = MessageGroupSpec(&[
// destroy
MessageSpec(&[
]),
// create_params
MessageSpec(&[
ArgKind::NewId,
]),
]);
const EVENTS: MessageGroupSpec = MessageGroupSpec(&[
// format
MessageSpec(&[
ArgKind::Uint,
]),
// modifier
MessageSpec(&[
ArgKind::Uint,
ArgKind::Uint,
ArgKind::Uint,
]),
]);
type Incoming = Event;
type Outgoing = Request;
}
#[derive(Debug)]
pub enum Request {
/// unbind the factory
///
/// Objects created through this interface, especially wl_buffers, will
/// remain valid.
Destroy,
/// create a temporary object for buffer parameters
///
/// This temporary object is used to collect multiple dmabuf handles into
/// a single batch to create a wl_buffer. It can only be used once and
/// should be destroyed after a 'created' or 'failed' event has been
/// received.
CreateParams {
/// the new temporary
params_id: NewId,
},
}
impl MessageType for Request {
fn log(&self, this: ObjectId) -> String {
match *self {
Request::Destroy {
} => {
format!("zwp_linux_dmabuf_v1@{:?}::destroy()", this)
}
Request::CreateParams {
ref params_id,
} => {
format!("zwp_linux_dmabuf_v1@{:?}::create_params(params_id: {:?})", this, params_id)
}
}
}
fn message_name(&self) -> &'static std::ffi::CStr{
match *self {
Request::Destroy { .. } => c"zwp_linux_dmabuf_v1::destroy",
Request::CreateParams { .. } => c"zwp_linux_dmabuf_v1::create_params",
}
}
}
#[derive(Debug)]
pub enum Event {
/// supported buffer format
///
/// This event advertises one buffer format that the server supports.
/// All the supported formats are advertised once when the client
/// binds to this interface. A roundtrip after binding guarantees
/// that the client has received all supported formats.
///
/// For the definition of the format codes, see the
/// zwp_linux_buffer_params_v1::create request.
///
/// Warning: the 'format' event is likely to be deprecated and replaced
/// with the 'modifier' event introduced in zwp_linux_dmabuf_v1
/// version 3, described below. Please refrain from using the information
/// received from this event.
Format {
/// DRM_FORMAT code
format: u32,
},
/// supported buffer format modifier
///
/// This event advertises the formats that the server supports, along with
/// the modifiers supported for each format. All the supported modifiers
/// for all the supported formats are advertised once when the client
/// binds to this interface. A roundtrip after binding guarantees that
/// the client has received all supported format-modifier pairs.
///
/// For the definition of the format and modifier codes, see the
/// zwp_linux_buffer_params_v1::create request.
Modifier {
/// DRM_FORMAT code
format: u32,
/// high 32 bits of layout modifier
modifier_hi: u32,
/// low 32 bits of layout modifier
modifier_lo: u32,
},
}
impl MessageType for Event {
fn log(&self, this: ObjectId) -> String {
match *self {
Event::Format {
ref format,
} => {
format!("zwp_linux_dmabuf_v1@{:?}::format(format: {:?})", this, format)
}
Event::Modifier {
ref format,
ref modifier_hi,
ref modifier_lo,
} => {
format!("zwp_linux_dmabuf_v1@{:?}::modifier(format: {:?}, modifier_hi: {:?}, modifier_lo: {:?})", this, format, modifier_hi, modifier_lo)
}
}
}
fn message_name(&self) -> &'static std::ffi::CStr{
match *self {
Event::Format { .. } => c"zwp_linux_dmabuf_v1::format",
Event::Modifier { .. } => c"zwp_linux_dmabuf_v1::modifier",
}
}
}
impl IntoMessage for Request {
type Error = EncodeError;
fn into_message(self, id: u32) -> Result<Message, <Self as IntoMessage>::Error> {
let mut header = MessageHeader {
sender: id,
opcode: 0,
length: 0,
};
let mut msg = Message::new();
msg.write_header(&header)?;
match self {
Request::Destroy {
} => {
header.opcode = 0;
},
Request::CreateParams {
params_id,
} => {
msg.write_arg(Arg::NewId(params_id))?;
header.opcode = 1;
},
}
header.length = msg.bytes().len() as u16;
msg.rewind();
msg.write_header(&header)?;
Ok(msg)
}
}
impl FromArgs for Event {
fn from_args(op: u16, mut args: Vec<Arg>) -> Result<Self, anyhow::Error> {
match op {
0 /* format */ => {
let mut iter = args.into_iter();
Ok(Event::Format {
format: iter.next()
.ok_or(DecodeError::InsufficientArgs)?
.as_uint()?,
})
},
1 /* modifier */ => {
let mut iter = args.into_iter();
Ok(Event::Modifier {
format: iter.next()
.ok_or(DecodeError::InsufficientArgs)?
.as_uint()?,
modifier_hi: iter.next()
.ok_or(DecodeError::InsufficientArgs)?
.as_uint()?,
modifier_lo: iter.next()
.ok_or(DecodeError::InsufficientArgs)?
.as_uint()?,
})
},
_ => {
Err(DecodeError::InvalidOpcode(op).into())
},
}
}
}
} // mod zwp_linux_dmabuf_v1
pub use crate::zwp_linux_dmabuf_v1::ZwpLinuxDmabufV1;
pub use crate::zwp_linux_dmabuf_v1::Request as ZwpLinuxDmabufV1Request;
pub use crate::zwp_linux_dmabuf_v1::Event as ZwpLinuxDmabufV1Event;
pub mod zwp_linux_buffer_params_v1 {
use super::*;
/// parameters for creating a dmabuf-based wl_buffer
///
/// This temporary object is a collection of dmabufs and other
/// parameters that together form a single logical buffer. The temporary
/// object may eventually create one wl_buffer unless cancelled by
/// destroying it before requesting 'create'.
///
/// Single-planar formats only require one dmabuf, however
/// multi-planar formats may require more than one dmabuf. For all
/// formats, an 'add' request must be called once per plane (even if the
/// underlying dmabuf fd is identical).
///
/// You must use consecutive plane indices ('plane_idx' argument for 'add')
/// from zero to the number of planes used by the drm_fourcc format code.
/// All planes required by the format must be given exactly once, but can
/// be given in any order. Each plane index can be set only once.
#[derive(Debug)]
pub struct ZwpLinuxBufferParamsV1;
impl Interface for ZwpLinuxBufferParamsV1 {
const NAME: &'static str = "zwp_linux_buffer_params_v1";
const VERSION: u32 = 3;
const REQUESTS: MessageGroupSpec = MessageGroupSpec(&[
// destroy
MessageSpec(&[
]),
// add
MessageSpec(&[
ArgKind::Handle,
ArgKind::Uint,
ArgKind::Uint,
ArgKind::Uint,
ArgKind::Uint,
ArgKind::Uint,
]),
// create
MessageSpec(&[
ArgKind::Int,
ArgKind::Int,
ArgKind::Uint,
ArgKind::Uint,
]),
// create_immed
MessageSpec(&[
ArgKind::NewId,
ArgKind::Int,
ArgKind::Int,
ArgKind::Uint,
ArgKind::Uint,
]),
]);
const EVENTS: MessageGroupSpec = MessageGroupSpec(&[
// created
MessageSpec(&[
ArgKind::NewId,
]),
// failed
MessageSpec(&[
]),
]);
type Incoming = Event;
type Outgoing = Request;
}
#[derive(Debug)]
pub enum Request {
/// delete this object, used or not
///
/// Cleans up the temporary data sent to the server for dmabuf-based
/// wl_buffer creation.
Destroy,
/// add a dmabuf to the temporary set
///
/// This request adds one dmabuf to the set in this
/// zwp_linux_buffer_params_v1.
///
/// The 64-bit unsigned value combined from modifier_hi and modifier_lo
/// is the dmabuf layout modifier. DRM AddFB2 ioctl calls this the
/// fb modifier, which is defined in drm_mode.h of Linux UAPI.
/// This is an opaque token. Drivers use this token to express tiling,
/// compression, etc. driver-specific modifications to the base format
/// defined by the DRM fourcc code.
///
/// This request raises the PLANE_IDX error if plane_idx is too large.
/// The error PLANE_SET is raised if attempting to set a plane that
/// was already set.
Add {
/// dmabuf fd
fd: zx::Handle,
/// plane index
plane_idx: u32,
/// offset in bytes
offset: u32,
/// stride in bytes
stride: u32,
/// high 32 bits of layout modifier
modifier_hi: u32,
/// low 32 bits of layout modifier
modifier_lo: u32,
},
/// create a wl_buffer from the given dmabufs
///
/// This asks for creation of a wl_buffer from the added dmabuf
/// buffers. The wl_buffer is not created immediately but returned via
/// the 'created' event if the dmabuf sharing succeeds. The sharing
/// may fail at runtime for reasons a client cannot predict, in
/// which case the 'failed' event is triggered.
///
/// The 'format' argument is a DRM_FORMAT code, as defined by the
/// libdrm's drm_fourcc.h. The Linux kernel's DRM sub-system is the
/// authoritative source on how the format codes should work.
///
/// The 'flags' is a bitfield of the flags defined in enum "flags".
/// 'y_invert' means the that the image needs to be y-flipped.
///
/// Flag 'interlaced' means that the frame in the buffer is not
/// progressive as usual, but interlaced. An interlaced buffer as
/// supported here must always contain both top and bottom fields.
/// The top field always begins on the first pixel row. The temporal
/// ordering between the two fields is top field first, unless
/// 'bottom_first' is specified. It is undefined whether 'bottom_first'
/// is ignored if 'interlaced' is not set.
///
/// This protocol does not convey any information about field rate,
/// duration, or timing, other than the relative ordering between the
/// two fields in one buffer. A compositor may have to estimate the
/// intended field rate from the incoming buffer rate. It is undefined
/// whether the time of receiving wl_surface.commit with a new buffer
/// attached, applying the wl_surface state, wl_surface.frame callback
/// trigger, presentation, or any other point in the compositor cycle
/// is used to measure the frame or field times. There is no support
/// for detecting missed or late frames/fields/buffers either, and
/// there is no support whatsoever for cooperating with interlaced
/// compositor output.
///
/// The composited image quality resulting from the use of interlaced
/// buffers is explicitly undefined. A compositor may use elaborate
/// hardware features or software to deinterlace and create progressive
/// output frames from a sequence of interlaced input buffers, or it
/// may produce substandard image quality. However, compositors that
/// cannot guarantee reasonable image quality in all cases are recommended
/// to just reject all interlaced buffers.
///
/// Any argument errors, including non-positive width or height,
/// mismatch between the number of planes and the format, bad
/// format, bad offset or stride, may be indicated by fatal protocol
/// errors: INCOMPLETE, INVALID_FORMAT, INVALID_DIMENSIONS,
/// OUT_OF_BOUNDS.
///
/// Dmabuf import errors in the server that are not obvious client
/// bugs are returned via the 'failed' event as non-fatal. This
/// allows attempting dmabuf sharing and falling back in the client
/// if it fails.
///
/// This request can be sent only once in the object's lifetime, after
/// which the only legal request is destroy. This object should be
/// destroyed after issuing a 'create' request. Attempting to use this
/// object after issuing 'create' raises ALREADY_USED protocol error.
///
/// It is not mandatory to issue 'create'. If a client wants to
/// cancel the buffer creation, it can just destroy this object.
Create {
/// base plane width in pixels
width: i32,
/// base plane height in pixels
height: i32,
/// DRM_FORMAT code
format: u32,
/// see enum flags
flags: u32,
},
/// immediately create a wl_buffer from the given
/// dmabufs
///
/// This asks for immediate creation of a wl_buffer by importing the
/// added dmabufs.
///
/// In case of import success, no event is sent from the server, and the
/// wl_buffer is ready to be used by the client.
///
/// Upon import failure, either of the following may happen, as seen fit
/// by the implementation:
/// - the client is terminated with one of the following fatal protocol
/// errors:
/// - INCOMPLETE, INVALID_FORMAT, INVALID_DIMENSIONS, OUT_OF_BOUNDS,
/// in case of argument errors such as mismatch between the number
/// of planes and the format, bad format, non-positive width or
/// height, or bad offset or stride.
/// - INVALID_WL_BUFFER, in case the cause for failure is unknown or
/// plaform specific.
/// - the server creates an invalid wl_buffer, marks it as failed and
/// sends a 'failed' event to the client. The result of using this
/// invalid wl_buffer as an argument in any request by the client is
/// defined by the compositor implementation.
///
/// This takes the same arguments as a 'create' request, and obeys the
/// same restrictions.
CreateImmed {
/// id for the newly created wl_buffer
buffer_id: NewId,
/// base plane width in pixels
width: i32,
/// base plane height in pixels
height: i32,
/// DRM_FORMAT code
format: u32,
/// see enum flags
flags: u32,
},
}
impl MessageType for Request {
fn log(&self, this: ObjectId) -> String {
match *self {
Request::Destroy {
} => {
format!("zwp_linux_buffer_params_v1@{:?}::destroy()", this)
}
Request::Add {
ref fd,
ref plane_idx,
ref offset,
ref stride,
ref modifier_hi,
ref modifier_lo,
} => {
format!("zwp_linux_buffer_params_v1@{:?}::add(fd: <handle>, plane_idx: {:?}, offset: {:?}, stride: {:?}, modifier_hi: {:?}, modifier_lo: {:?})", this, plane_idx, offset, stride, modifier_hi, modifier_lo)
}
Request::Create {
ref width,
ref height,
ref format,
ref flags,
} => {
format!("zwp_linux_buffer_params_v1@{:?}::create(width: {:?}, height: {:?}, format: {:?}, flags: {:?})", this, width, height, format, flags)
}
Request::CreateImmed {
ref buffer_id,
ref width,
ref height,
ref format,
ref flags,
} => {
format!("zwp_linux_buffer_params_v1@{:?}::create_immed(buffer_id: {:?}, width: {:?}, height: {:?}, format: {:?}, flags: {:?})", this, buffer_id, width, height, format, flags)
}
}
}
fn message_name(&self) -> &'static std::ffi::CStr{
match *self {
Request::Destroy { .. } => c"zwp_linux_buffer_params_v1::destroy",
Request::Add { .. } => c"zwp_linux_buffer_params_v1::add",
Request::Create { .. } => c"zwp_linux_buffer_params_v1::create",
Request::CreateImmed { .. } => c"zwp_linux_buffer_params_v1::create_immed",
}
}
}
#[derive(Debug)]
pub enum Event {
/// buffer creation succeeded
///
/// This event indicates that the attempted buffer creation was
/// successful. It provides the new wl_buffer referencing the dmabuf(s).
///
/// Upon receiving this event, the client should destroy the
/// zlinux_dmabuf_params object.
Created {
/// the newly created wl_buffer
buffer: NewObject<WlBuffer>,
},
/// buffer creation failed
///
/// This event indicates that the attempted buffer creation has
/// failed. It usually means that one of the dmabuf constraints
/// has not been fulfilled.
///
/// Upon receiving this event, the client should destroy the
/// zlinux_buffer_params object.
Failed,
}
impl MessageType for Event {
fn log(&self, this: ObjectId) -> String {
match *self {
Event::Created {
ref buffer,
} => {
format!("zwp_linux_buffer_params_v1@{:?}::created(buffer: {:?})", this, buffer)
}
Event::Failed {
} => {
format!("zwp_linux_buffer_params_v1@{:?}::failed()", this)
}
}
}
fn message_name(&self) -> &'static std::ffi::CStr{
match *self {
Event::Created { .. } => c"zwp_linux_buffer_params_v1::created",
Event::Failed { .. } => c"zwp_linux_buffer_params_v1::failed",
}
}
}
impl IntoMessage for Request {
type Error = EncodeError;
fn into_message(self, id: u32) -> Result<Message, <Self as IntoMessage>::Error> {
let mut header = MessageHeader {
sender: id,
opcode: 0,
length: 0,
};
let mut msg = Message::new();
msg.write_header(&header)?;
match self {
Request::Destroy {
} => {
header.opcode = 0;
},
Request::Add {
fd,
plane_idx,
offset,
stride,
modifier_hi,
modifier_lo,
} => {
msg.write_arg(Arg::Handle(fd))?;
msg.write_arg(Arg::Uint(plane_idx))?;
msg.write_arg(Arg::Uint(offset))?;
msg.write_arg(Arg::Uint(stride))?;
msg.write_arg(Arg::Uint(modifier_hi))?;
msg.write_arg(Arg::Uint(modifier_lo))?;
header.opcode = 1;
},
Request::Create {
width,
height,
format,
flags,
} => {
msg.write_arg(Arg::Int(width))?;
msg.write_arg(Arg::Int(height))?;
msg.write_arg(Arg::Uint(format))?;
msg.write_arg(Arg::Uint(flags))?;
header.opcode = 2;
},
Request::CreateImmed {
buffer_id,
width,
height,
format,
flags,
} => {
msg.write_arg(Arg::NewId(buffer_id))?;
msg.write_arg(Arg::Int(width))?;
msg.write_arg(Arg::Int(height))?;
msg.write_arg(Arg::Uint(format))?;
msg.write_arg(Arg::Uint(flags))?;
header.opcode = 3;
},
}
header.length = msg.bytes().len() as u16;
msg.rewind();
msg.write_header(&header)?;
Ok(msg)
}
}
impl FromArgs for Event {
fn from_args(op: u16, mut args: Vec<Arg>) -> Result<Self, anyhow::Error> {
match op {
0 /* created */ => {
let mut iter = args.into_iter();
Ok(Event::Created {
buffer: iter.next()
.ok_or(DecodeError::InsufficientArgs)?
.as_new_id()?.into(),
})
},
1 /* failed */ => {
let mut iter = args.into_iter();
Ok(Event::Failed {
})
},
_ => {
Err(DecodeError::InvalidOpcode(op).into())
},
}
}
}
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
#[repr(u32)]
pub enum Error {
/// the dmabuf_batch object has already been used to create a wl_buffer,
AlreadyUsed = 0,
/// plane index out of bounds,
PlaneIdx = 1,
/// the plane index was already set,
PlaneSet = 2,
/// missing or too many planes to create a buffer,
Incomplete = 3,
/// format not supported,
InvalidFormat = 4,
/// invalid width or height,
InvalidDimensions = 5,
/// offset + stride * height goes out of dmabuf bounds,
OutOfBounds = 6,
/// invalid wl_buffer resulted from importing dmabufs via,
/// the create_immed request on given buffer_params,
InvalidWlBuffer = 7,
}
impl Error {
pub fn from_bits(v: u32) -> Option<Self> {
match v {
0 => Some(Error::AlreadyUsed),
1 => Some(Error::PlaneIdx),
2 => Some(Error::PlaneSet),
3 => Some(Error::Incomplete),
4 => Some(Error::InvalidFormat),
5 => Some(Error::InvalidDimensions),
6 => Some(Error::OutOfBounds),
7 => Some(Error::InvalidWlBuffer),
_ => None,
}
}
pub fn bits(&self) -> u32 {
*self as u32
}
}
impl Into<Arg> for Error {
fn into(self) -> Arg {
Arg::Uint(self.bits())
}
}
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
#[repr(u32)]
pub enum Flags {
/// contents are y-inverted,
YInvert = 1,
/// content is interlaced,
Interlaced = 2,
/// bottom field first,
BottomFirst = 4,
}
impl Flags {
pub fn from_bits(v: u32) -> Option<Self> {
match v {
1 => Some(Flags::YInvert),
2 => Some(Flags::Interlaced),
4 => Some(Flags::BottomFirst),
_ => None,
}
}
pub fn bits(&self) -> u32 {
*self as u32
}
}
impl Into<Arg> for Flags {
fn into(self) -> Arg {
Arg::Uint(self.bits())
}
}
} // mod zwp_linux_buffer_params_v1
pub use crate::zwp_linux_buffer_params_v1::ZwpLinuxBufferParamsV1;
pub use crate::zwp_linux_buffer_params_v1::Request as ZwpLinuxBufferParamsV1Request;
pub use crate::zwp_linux_buffer_params_v1::Event as ZwpLinuxBufferParamsV1Event;