229 lines
10 KiB
XML
229 lines
10 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<protocol name="hyprland_toplevel_export_v1">
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<copyright>
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Copyright © 2022 Vaxry
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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</copyright>
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<description summary="capturing the contents of toplevel windows">
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This protocol allows clients to ask for exporting another toplevel's
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surface(s) to a buffer.
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Particularly useful for sharing a single window.
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</description>
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<interface name="hyprland_toplevel_export_manager_v1" version="2">
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<description summary="manager to inform clients and begin capturing">
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This object is a manager which offers requests to start capturing from a
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source.
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</description>
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<request name="capture_toplevel">
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<description summary="capture a toplevel">
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Capture the next frame of a toplevel. (window)
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The captured frame will not contain any server-side decorations and will
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ignore the compositor-set geometry, like e.g. rounded corners.
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It will contain all the subsurfaces and popups, however the latter will be clipped
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to the geometry of the base surface.
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The handle parameter refers to the address of the window as seen in `hyprctl clients`.
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For example, for d161e7b0 it would be 3512854448.
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</description>
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<arg name="frame" type="new_id" interface="hyprland_toplevel_export_frame_v1"/>
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<arg name="overlay_cursor" type="int"
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summary="composite cursor onto the frame"/>
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<arg name="handle" type="uint" summary="the handle of the toplevel (window) to be captured"/>
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</request>
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<request name="destroy" type="destructor">
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<description summary="destroy the manager">
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All objects created by the manager will still remain valid, until their
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appropriate destroy request has been called.
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</description>
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</request>
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<!-- Version 2 -->
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<request name="capture_toplevel_with_wlr_toplevel_handle" since="2">
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<description summary="capture a toplevel">
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Same as capture_toplevel, but with a zwlr_foreign_toplevel_handle_v1 handle.
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</description>
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<arg name="frame" type="new_id" interface="hyprland_toplevel_export_frame_v1"/>
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<arg name="overlay_cursor" type="int"
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summary="composite cursor onto the frame"/>
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<arg name="handle" type="object" interface="zwlr_foreign_toplevel_handle_v1" allow-null="false" summary="the zwlr_foreign_toplevel_handle_v1 handle of the toplevel to be captured"/>
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</request>
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<!-- End Version 2 -->
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</interface>
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<interface name="hyprland_toplevel_export_frame_v1" version="2">
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<description summary="a frame ready for copy">
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This object represents a single frame.
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When created, a series of buffer events will be sent, each representing a
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supported buffer type. The "buffer_done" event is sent afterwards to
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indicate that all supported buffer types have been enumerated. The client
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will then be able to send a "copy" request. If the capture is successful,
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the compositor will send a "flags" followed by a "ready" event.
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wl_shm buffers are always supported, ie. the "buffer" event is guaranteed to be sent.
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If the capture failed, the "failed" event is sent. This can happen anytime
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before the "ready" event.
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Once either a "ready" or a "failed" event is received, the client should
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destroy the frame.
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</description>
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<event name="buffer">
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<description summary="wl_shm buffer information">
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Provides information about wl_shm buffer parameters that need to be
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used for this frame. This event is sent once after the frame is created
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if wl_shm buffers are supported.
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</description>
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<arg name="format" type="uint" enum="wl_shm.format" summary="buffer format"/>
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<arg name="width" type="uint" summary="buffer width"/>
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<arg name="height" type="uint" summary="buffer height"/>
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<arg name="stride" type="uint" summary="buffer stride"/>
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</event>
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<request name="copy">
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<description summary="copy the frame">
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Copy the frame to the supplied buffer. The buffer must have the
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correct size, see hyprland_toplevel_export_frame_v1.buffer and
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hyprland_toplevel_export_frame_v1.linux_dmabuf. The buffer needs to have a
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supported format.
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If the frame is successfully copied, a "flags" and a "ready" event is
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sent. Otherwise, a "failed" event is sent.
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This event will wait for appropriate damage to be copied, unless the ignore_damage
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arg is set to a non-zero value.
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</description>
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<arg name="buffer" type="object" interface="wl_buffer"/>
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<arg name="ignore_damage" type="int"/>
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</request>
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<event name="damage">
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<description summary="carries the coordinates of the damaged region">
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This event is sent right before the ready event when ignore_damage was
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not set. It may be generated multiple times for each copy
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request.
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The arguments describe a box around an area that has changed since the
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last copy request that was derived from the current screencopy manager
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instance.
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The union of all regions received between the call to copy
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and a ready event is the total damage since the prior ready event.
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</description>
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<arg name="x" type="uint" summary="damaged x coordinates"/>
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<arg name="y" type="uint" summary="damaged y coordinates"/>
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<arg name="width" type="uint" summary="current width"/>
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<arg name="height" type="uint" summary="current height"/>
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</event>
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<enum name="error">
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<entry name="already_used" value="0"
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summary="the object has already been used to copy a wl_buffer"/>
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<entry name="invalid_buffer" value="1"
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summary="buffer attributes are invalid"/>
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</enum>
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<enum name="flags" bitfield="true">
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<entry name="y_invert" value="1" summary="contents are y-inverted"/>
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</enum>
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<event name="flags">
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<description summary="frame flags">
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Provides flags about the frame. This event is sent once before the
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"ready" event.
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</description>
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<arg name="flags" type="uint" enum="flags" summary="frame flags"/>
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</event>
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<event name="ready">
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<description summary="indicates frame is available for reading">
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Called as soon as the frame is copied, indicating it is available
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for reading. This event includes the time at which presentation happened
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at.
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The timestamp is expressed as tv_sec_hi, tv_sec_lo, tv_nsec triples,
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each component being an unsigned 32-bit value. Whole seconds are in
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tv_sec which is a 64-bit value combined from tv_sec_hi and tv_sec_lo,
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and the additional fractional part in tv_nsec as nanoseconds. Hence,
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for valid timestamps tv_nsec must be in [0, 999999999]. The seconds part
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may have an arbitrary offset at start.
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After receiving this event, the client should destroy the object.
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</description>
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<arg name="tv_sec_hi" type="uint"
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summary="high 32 bits of the seconds part of the timestamp"/>
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<arg name="tv_sec_lo" type="uint"
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summary="low 32 bits of the seconds part of the timestamp"/>
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<arg name="tv_nsec" type="uint"
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summary="nanoseconds part of the timestamp"/>
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</event>
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<event name="failed">
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<description summary="frame copy failed">
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This event indicates that the attempted frame copy has failed.
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After receiving this event, the client should destroy the object.
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</description>
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</event>
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<request name="destroy" type="destructor">
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<description summary="delete this object, used or not">
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Destroys the frame. This request can be sent at any time by the client.
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</description>
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</request>
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<event name="linux_dmabuf">
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<description summary="linux-dmabuf buffer information">
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Provides information about linux-dmabuf buffer parameters that need to
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be used for this frame. This event is sent once after the frame is
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created if linux-dmabuf buffers are supported.
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</description>
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<arg name="format" type="uint" summary="fourcc pixel format"/>
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<arg name="width" type="uint" summary="buffer width"/>
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<arg name="height" type="uint" summary="buffer height"/>
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</event>
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<event name="buffer_done">
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<description summary="all buffer types reported">
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This event is sent once after all buffer events have been sent.
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The client should proceed to create a buffer of one of the supported
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types, and send a "copy" request.
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</description>
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</event>
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</interface>
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</protocol>
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