@@ 0,0 1,248 @@
+diff --git a/Makefile b/Makefile
+index f0ff805..a674c88 100644
+--- a/Makefile
++++ b/Makefile
+@@ -11,12 +11,12 @@ DWLDEVCFLAGS = -g -pedantic -Wall -Wextra -Wdeclaration-after-statement -Wno-unu
+ # CFLAGS / LDFLAGS
+ PKGS = wlroots wayland-server xkbcommon libinput $(XLIBS)
+ DWLCFLAGS = `$(PKG_CONFIG) --cflags $(PKGS)` $(DWLCPPFLAGS) $(DWLDEVCFLAGS) $(CFLAGS)
+-LDLIBS = `$(PKG_CONFIG) --libs $(PKGS)` $(LIBS)
++LDLIBS = `$(PKG_CONFIG) --libs $(PKGS)` -lpixman-1 $(LIBS)
+
+ all: dwl
+ dwl: dwl.o util.o
+ $(CC) dwl.o util.o $(LDLIBS) $(LDFLAGS) $(DWLCFLAGS) -o $@
+-dwl.o: dwl.c config.mk config.h client.h cursor-shape-v1-protocol.h xdg-shell-protocol.h wlr-layer-shell-unstable-v1-protocol.h
++dwl.o: dwl.c config.mk config.h client.h cursor-shape-v1-protocol.h xdg-shell-protocol.h wlr-layer-shell-unstable-v1-protocol.h wlr-output-power-management-unstable-v1-protocol.h
+ util.o: util.c util.h
+
+ # wayland-scanner is a tool which generates C headers and rigging for Wayland
+@@ -31,6 +31,9 @@ xdg-shell-protocol.h:
+ wlr-layer-shell-unstable-v1-protocol.h:
+ $(WAYLAND_SCANNER) server-header \
+ protocols/wlr-layer-shell-unstable-v1.xml $@
++wlr-output-power-management-unstable-v1-protocol.h:
++ $(WAYLAND_SCANNER) server-header \
++ protocols/wlr-output-power-management-unstable-v1.xml $@
+ cursor-shape-v1-protocol.h:
+ $(WAYLAND_SCANNER) server-header \
+ $(WAYLAND_PROTOCOLS)/staging/cursor-shape/cursor-shape-v1.xml $@
+diff --git a/dwl.c b/dwl.c
+index 69da91d..1393aad 100644
+--- a/dwl.c
++++ b/dwl.c
+@@ -33,6 +33,7 @@
+ #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_presentation_time.h>
+ #include <wlr/types/wlr_primary_selection.h>
+@@ -289,6 +290,7 @@ 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 powermgrsetmodenotify(struct wl_listener *listener, void *data);
+ static void quit(const Arg *arg);
+ static void rendermon(struct wl_listener *listener, void *data);
+ static void requeststartdrag(struct wl_listener *listener, void *data);
+@@ -366,6 +368,8 @@ static struct wlr_scene_rect *locked_bg;
+ static struct wlr_session_lock_v1 *cur_lock;
+ static struct wl_listener lock_listener = {.notify = locksession};
+
++static struct wlr_output_power_manager_v1 *power_mgr;
++
+ static struct wlr_seat *seat;
+ static struct wl_list keyboards;
+ static unsigned int cursor_mode;
+@@ -1842,6 +1846,18 @@ printstatus(void)
+ fflush(stdout);
+ }
+
++#include "output.c"
++
++void
++powermgrsetmodenotify(struct wl_listener *listener, void *data)
++{
++ struct wlr_output_power_v1_set_mode_event *event = data;
++ wlr_output_enable(event->output, event->mode);
++ if (event->mode)
++ wlr_output_damage_whole(event->output);
++ wlr_output_commit(event->output);
++}
++
+ void
+ quit(const Arg *arg)
+ {
+@@ -2230,6 +2246,9 @@ setup(void)
+ gamma_control_mgr = wlr_gamma_control_manager_v1_create(dpy);
+ LISTEN_STATIC(&gamma_control_mgr->events.set_gamma, setgamma);
+
++ power_mgr = wlr_output_power_manager_v1_create(dpy);
++ LISTEN_STATIC(&power_mgr->events.set_mode, powermgrsetmodenotify);
++
+ /* Creates an output layout, which a wlroots utility for working with an
+ * arrangement of screens in a physical layout. */
+ output_layout = wlr_output_layout_create();
+diff --git a/output.c b/output.c
+new file mode 100644
+index 0000000..7eb7024
+--- /dev/null
++++ b/output.c
+@@ -0,0 +1,21 @@
++#include <pixman.h>
++#include <wlr/interfaces/wlr_output.h>
++
++void wlr_output_damage_whole(struct wlr_output *output) {
++ int width, height;
++ pixman_region32_t damage;
++ struct wlr_output_event_damage event;
++
++ wlr_output_transformed_resolution(output, &width, &height);
++
++ pixman_region32_init_rect(&damage, 0, 0, width, height);
++
++ event = (struct wlr_output_event_damage){
++ .output = output,
++ .damage = &damage,
++ };
++ wl_signal_emit_mutable(&output->events.damage, &event);
++
++ pixman_region32_fini(&damage);
++}
++
+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>