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-rw-r--r--protocol/meson.build1
-rw-r--r--protocol/wlr-gamma-control-unstable-v1.xml126
2 files changed, 127 insertions, 0 deletions
diff --git a/protocol/meson.build b/protocol/meson.build
index ffdf01a8..23da1afc 100644
--- a/protocol/meson.build
+++ b/protocol/meson.build
@@ -42,6 +42,7 @@ protocols = [
'server-decoration.xml',
'virtual-keyboard-unstable-v1.xml',
'wlr-export-dmabuf-unstable-v1.xml',
+ 'wlr-gamma-control-unstable-v1.xml',
'wlr-input-inhibitor-unstable-v1.xml',
'wlr-layer-shell-unstable-v1.xml',
'wlr-screencopy-unstable-v1.xml',
diff --git a/protocol/wlr-gamma-control-unstable-v1.xml b/protocol/wlr-gamma-control-unstable-v1.xml
new file mode 100644
index 00000000..f55f3fe5
--- /dev/null
+++ b/protocol/wlr-gamma-control-unstable-v1.xml
@@ -0,0 +1,126 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="wlr_gamma_control_unstable_v1">
+ <copyright>
+ Copyright © 2015 Giulio camuffo
+ Copyright © 2018 Simon Ser
+
+ Permission to use, copy, modify, distribute, and sell this
+ software and its documentation for any purpose is hereby granted
+ without fee, provided that the above copyright notice appear in
+ all copies and that both that copyright notice and this permission
+ notice appear in supporting documentation, and that the name of
+ the copyright holders not be used in advertising or publicity
+ pertaining to distribution of the software without specific,
+ written prior permission. The copyright holders make no
+ representations about the suitability of this software for any
+ purpose. It is provided "as is" without express or implied
+ warranty.
+
+ THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+ AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
+ THIS SOFTWARE.
+ </copyright>
+
+ <description summary="manage gamma tables of outputs">
+ This protocol allows a privileged client to set the gamma tables for
+ outputs.
+
+ 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.
+ </description>
+
+ <interface name="zwlr_gamma_control_manager_v1" version="1">
+ <description summary="manager to create per-output gamma controls">
+ This interface is a manager that allows creating per-output gamma
+ controls.
+ </description>
+
+ <request name="get_gamma_control">
+ <description summary="get a gamma control for an output">
+ Create a gamma control that can be used to adjust gamma tables for the
+ provided output.
+ </description>
+ <arg name="id" type="new_id" interface="zwlr_gamma_control_v1"/>
+ <arg name="output" type="object" interface="wl_output"/>
+ </request>
+
+ <request name="destroy" type="destructor">
+ <description summary="destroy the manager">
+ All objects created by the manager will still remain valid, until their
+ appropriate destroy request has been called.
+ </description>
+ </request>
+ </interface>
+
+ <interface name="zwlr_gamma_control_v1" version="1">
+ <description summary="adjust gamma tables for an output">
+ This interface allows a client to adjust gamma tables for a particular
+ output.
+
+ The client will receive the gamma size, and will then be able to set gamma
+ tables. At any time the compositor can send a failed event indicating that
+ this object is no longer valid.
+
+ There must always be at most one gamma control object per output, which
+ has exclusive access to this particular output. When the gamma control
+ object is destroyed, the gamma table is restored to its original value.
+ </description>
+
+ <event name="gamma_size">
+ <description summary="size of gamma ramps">
+ Advertise the size of each gamma ramp.
+
+ This event is sent immediately when the gamma control object is created.
+ </description>
+ <arg name="size" type="uint" summary="number of elements in a ramp"/>
+ </event>
+
+ <enum name="error">
+ <entry name="invalid_gamma" value="1" summary="invalid gamma tables"/>
+ </enum>
+
+ <request name="set_gamma">
+ <description summary="set the gamma table">
+ Set the gamma table. The file descriptor can be memory-mapped to provide
+ the raw gamma table, which contains successive gamma ramps for the red,
+ green and blue channels. Each gamma ramp is an array of 16-byte unsigned
+ integers which has the same length as the gamma size.
+
+ The file descriptor data must have the same length as three times the
+ gamma size.
+ </description>
+ <arg name="fd" type="fd" summary="gamma table file descriptor"/>
+ </request>
+
+ <event name="failed">
+ <description summary="object no longer valid">
+ This event indicates that the gamma control is no longer valid. This
+ can happen for a number of reasons, including:
+ - The output doesn't support gamma tables
+ - Setting the gamma tables failed
+ - Another client already has exclusive gamma control for this output
+ - The compositor has transfered gamma control to another client
+
+ Upon receiving this event, the client should destroy this object.
+ </description>
+ </event>
+
+ <request name="destroy" type="destructor">
+ <description summary="destroy this control">
+ Destroys the gamma control object. If the object is still valid, this
+ restores the original gamma tables.
+ </description>
+ </request>
+ </interface>
+</protocol>