protocols: init protocols dir & add wlr-output-power-management-v1 protocol

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jackinfurs 2025-12-23 19:41:28 +00:00
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@ -0,0 +1,16 @@
### Description
Implements the [wlr-output-power-management](https://wayland.app/protocols/wlr-output-power-management-unstable-v1) protocol, allowing clients to control power management modes of outputs that are currently part of the compositor space (i.e. allowing clients to power down outputs when the system is idle)
### Download
- [git branch](/jackinfurs/dwl/src/branch/main)
- [main](/jackinfurs/dwl-patches/raw/branch/main/protocols/wlr-output-power-management/wlr-output-power-management-v1.patch)
### Authors
- [Leonardo Hernández Hernández](https://codeberg.org/sevz)
- [thanatos](https://codeberg.org/thanatos)
- [Emil Miler](https://codeberg.org/realcharmer)
- [Dima Krasner](https://codeberg.org/dimkr)

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From 99bfbb079135709726def083397f9378f2829efa Mon Sep 17 00:00:00 2001
From: jackinfurs <jackdunne626@gmail.com>
Date: Tue, 23 Dec 2025 19:34:40 +0000
Subject: [PATCH] protocol: wlr-output-power-management
---
Makefile | 2 +-
dwl.c | 30 ++++
...lr-output-power-management-unstable-v1.xml | 128 ++++++++++++++++++
3 files changed, 159 insertions(+), 1 deletion(-)
create mode 100644 protocols/wlr-output-power-management-unstable-v1.xml
diff --git a/Makefile b/Makefile
index f1ade34..578194f 100644
--- a/Makefile
+++ b/Makefile
@@ -21,7 +21,7 @@ dwl: dwl.o util.o
$(CC) dwl.o util.o $(DWLCFLAGS) $(LDFLAGS) $(LDLIBS) -o $@
dwl.o: dwl.c client.h config.h config.mk cursor-shape-v1-protocol.h \
pointer-constraints-unstable-v1-protocol.h wlr-layer-shell-unstable-v1-protocol.h \
- xdg-shell-protocol.h
+ wlr-output-power-management-unstable-v1-protocol.h xdg-shell-protocol.h
util.o: util.c util.h
# wayland-scanner is a tool which generates C headers and rigging for Wayland
diff --git a/dwl.c b/dwl.c
index 506a514..12f441e 100644
--- a/dwl.c
+++ b/dwl.c
@@ -37,6 +37,7 @@
#include <wlr/types/wlr_output.h>
#include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_output_management_v1.h>
+#include <wlr/types/wlr_output_power_management_v1.h>
#include <wlr/types/wlr_pointer.h>
#include <wlr/types/wlr_pointer_constraints_v1.h>
#include <wlr/types/wlr_presentation_time.h>
@@ -310,6 +311,7 @@ static void outputmgrtest(struct wl_listener *listener, void *data);
static void pointerfocus(Client *c, struct wlr_surface *surface,
double sx, double sy, uint32_t time);
static void printstatus(void);
+static void powermgrsetmode(struct wl_listener *listener, void *data);
static void quit(const Arg *arg);
static void rendermon(struct wl_listener *listener, void *data);
static void requestdecorationmode(struct wl_listener *listener, void *data);
@@ -379,6 +381,7 @@ static struct wlr_output_manager_v1 *output_mgr;
static struct wlr_virtual_keyboard_manager_v1 *virtual_keyboard_mgr;
static struct wlr_virtual_pointer_manager_v1 *virtual_pointer_mgr;
static struct wlr_cursor_shape_manager_v1 *cursor_shape_mgr;
+static struct wlr_output_power_manager_v1 *power_mgr;
static struct wlr_pointer_constraints_v1 *pointer_constraints;
static struct wlr_relative_pointer_manager_v1 *relative_pointer_mgr;
@@ -423,6 +426,7 @@ static struct wl_listener new_xdg_decoration = {.notify = createdecoration};
static struct wl_listener new_layer_surface = {.notify = createlayersurface};
static struct wl_listener output_mgr_apply = {.notify = outputmgrapply};
static struct wl_listener output_mgr_test = {.notify = outputmgrtest};
+static struct wl_listener output_power_mgr_set_mode = {.notify = powermgrsetmode};
static struct wl_listener request_activate = {.notify = urgent};
static struct wl_listener request_cursor = {.notify = setcursor};
static struct wl_listener request_set_psel = {.notify = setpsel};
@@ -769,6 +773,7 @@ cleanuplisteners(void)
wl_list_remove(&new_layer_surface.link);
wl_list_remove(&output_mgr_apply.link);
wl_list_remove(&output_mgr_test.link);
+ wl_list_remove(&output_power_mgr_set_mode.link);
wl_list_remove(&request_activate.link);
wl_list_remove(&request_cursor.link);
wl_list_remove(&request_set_psel.link);
@@ -1998,6 +2003,10 @@ outputmgrapplyortest(struct wlr_output_configuration_v1 *config, int test)
Monitor *m = wlr_output->data;
struct wlr_output_state state;
+ /* Ensure displays previously disabled by wlr-output-power-management-v1
+ * are properly handled*/
+ m->asleep = 0;
+
wlr_output_state_init(&state);
wlr_output_state_set_enabled(&state, config_head->state.enabled);
if (!config_head->state.enabled)
@@ -2113,6 +2122,24 @@ printstatus(void)
fflush(stdout);
}
+void
+powermgrsetmode(struct wl_listener *listener, void *data)
+{
+ struct wlr_output_power_v1_set_mode_event *event = data;
+ struct wlr_output_state state = {0};
+ Monitor *m = event->output->data;
+
+ if (!m)
+ return;
+
+ m->gamma_lut_changed = 1; /* Reapply gamma LUT when re-enabling the ouput */
+ wlr_output_state_set_enabled(&state, event->mode);
+ wlr_output_commit_state(m->wlr_output, &state);
+
+ m->asleep = !event->mode;
+ updatemons(NULL, NULL);
+}
+
void
quit(const Arg *arg)
{
@@ -2503,6 +2530,9 @@ setup(void)
wlr_scene_set_gamma_control_manager_v1(scene, wlr_gamma_control_manager_v1_create(dpy));
+ power_mgr = wlr_output_power_manager_v1_create(dpy);
+ wl_signal_add(&power_mgr->events.set_mode, &output_power_mgr_set_mode);
+
/* Creates an output layout, which is a wlroots utility for working with an
* arrangement of screens in a physical layout. */
output_layout = wlr_output_layout_create(dpy);
diff --git a/protocols/wlr-output-power-management-unstable-v1.xml b/protocols/wlr-output-power-management-unstable-v1.xml
new file mode 100644
index 0000000..a977839
--- /dev/null
+++ b/protocols/wlr-output-power-management-unstable-v1.xml
@@ -0,0 +1,128 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="wlr_output_power_management_unstable_v1">
+ <copyright>
+ Copyright © 2019 Purism SPC
+
+ 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.
+ </copyright>
+
+ <description summary="Control power management modes of outputs">
+ This protocol allows clients to control power management modes
+ of outputs that are currently part of the compositor space. The
+ intent is to allow special clients like desktop shells to power
+ down outputs when the system is idle.
+
+ To modify outputs not currently part of the compositor space see
+ wlr-output-management.
+
+ 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_output_power_manager_v1" version="1">
+ <description summary="manager to create per-output power management">
+ This interface is a manager that allows creating per-output power
+ management mode controls.
+ </description>
+
+ <request name="get_output_power">
+ <description summary="get a power management for an output">
+ Create a output power management mode control that can be used to
+ adjust the power management mode for a given output.
+ </description>
+ <arg name="id" type="new_id" interface="zwlr_output_power_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_output_power_v1" version="1">
+ <description summary="adjust power management mode for an output">
+ This object offers requests to set the power management mode of
+ an output.
+ </description>
+
+ <enum name="mode">
+ <entry name="off" value="0"
+ summary="Output is turned off."/>
+ <entry name="on" value="1"
+ summary="Output is turned on, no power saving"/>
+ </enum>
+
+ <enum name="error">
+ <entry name="invalid_mode" value="1" summary="inexistent power save mode"/>
+ </enum>
+
+ <request name="set_mode">
+ <description summary="Set an outputs power save mode">
+ Set an output's power save mode to the given mode. The mode change
+ is effective immediately. If the output does not support the given
+ mode a failed event is sent.
+ </description>
+ <arg name="mode" type="uint" enum="mode" summary="the power save mode to set"/>
+ </request>
+
+ <event name="mode">
+ <description summary="Report a power management mode change">
+ Report the power management mode change of an output.
+
+ The mode event is sent after an output changed its power
+ management mode. The reason can be a client using set_mode or the
+ compositor deciding to change an output's mode.
+ This event is also sent immediately when the object is created
+ so the client is informed about the current power management mode.
+ </description>
+ <arg name="mode" type="uint" enum="mode"
+ summary="the output's new power management mode"/>
+ </event>
+
+ <event name="failed">
+ <description summary="object no longer valid">
+ This event indicates that the output power management mode control
+ is no longer valid. This can happen for a number of reasons,
+ including:
+ - The output doesn't support power management
+ - Another client already has exclusive power management mode control
+ for this output
+ - The output disappeared
+
+ Upon receiving this event, the client should destroy this object.
+ </description>
+ </event>
+
+ <request name="destroy" type="destructor">
+ <description summary="destroy this power management">
+ Destroys the output power management mode control object.
+ </description>
+ </request>
+ </interface>
+</protocol>
--
2.51.2