support wlr-output-power-management

Makefile

@@ -81,6 +81,16 @@ idle-protocol.c:
 
 idle-protocol.o: idle-protocol.h
 
+wlr-output-power-management-unstable-v1-protocol.h:
+	$(WAYLAND_SCANNER) server-header \
+		protocols/wlr-output-power-management-unstable-v1.xml $@
+
+wlr-output-power-management-unstable-v1-protocol.c:
+	$(WAYLAND_SCANNER) private-code \
+		protocols/wlr-output-power-management-unstable-v1.xml $@
+
+wlr-output-power-management-unstable-v1-protocol.o: wlr-output-power-management-unstable-v1-protocol.h
+
 legacyrenderer:
 	mkdir -p build && cmake --no-warn-unused-cli -DCMAKE_BUILD_TYPE:STRING=Release -DLEGACY_RENDERER:STRING=true -H./ -B./build -G Ninja
 	cmake --build ./build --config Release --target all -j 10
@@ -133,7 +143,7 @@ uninstall:
 	rm -f /usr/lib/libwlroots.so.11032
 	rm -rf ${PREFIX}/share/hyprland
 
-protocols: xdg-shell-protocol.o wlr-layer-shell-unstable-v1-protocol.o wlr-screencopy-unstable-v1-protocol.o idle-protocol.o ext-workspace-unstable-v1-protocol.o pointer-constraints-unstable-v1-protocol.o tablet-unstable-v2-protocol.o
+protocols: xdg-shell-protocol.o wlr-layer-shell-unstable-v1-protocol.o wlr-screencopy-unstable-v1-protocol.o idle-protocol.o ext-workspace-unstable-v1-protocol.o pointer-constraints-unstable-v1-protocol.o tablet-unstable-v2-protocol.o wlr-output-power-management-unstable-v1-protocol.o
 
 fixwlr:
 	sed -i -E 's/(soversion = 11)([^032]|$$)/soversion = 11032/g' subprojects/wlroots/meson.build

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>

src/Compositor.cpp

@@ -96,6 +96,8 @@ CCompositor::CCompositor() {
 
     m_sWLROutputLayout = wlr_output_layout_create();
 
+    m_sWLROutputPowerMgr = wlr_output_power_manager_v1_create(m_sWLDisplay);
+
     m_sWLRScene = wlr_scene_create();
     wlr_scene_attach_output_layout(m_sWLRScene, m_sWLROutputLayout);
 
@@ -195,6 +197,7 @@ void CCompositor::initAllSignals() {
     addWLSignal(&m_sWLRVirtPtrMgr->events.new_virtual_pointer, &Events::listen_newVirtPtr, m_sWLRVirtPtrMgr, "VirtPtrMgr");
     addWLSignal(&m_sWLRRenderer->events.destroy, &Events::listen_RendererDestroy, m_sWLRRenderer, "WLRRenderer");
     addWLSignal(&m_sWLRIdleInhibitMgr->events.new_inhibitor, &Events::listen_newIdleInhibitor, m_sWLRIdleInhibitMgr, "WLRIdleInhibitMgr");
+    addWLSignal(&m_sWLROutputPowerMgr->events.set_mode, &Events::listen_powerMgrSetMode, m_sWLROutputPowerMgr, "PowerMgr");
     if (m_sWLRSession)
         addWLSignal(&m_sWLRSession->events.active, &Events::listen_sessionActive, m_sWLRSession, "Session");
 }

src/Compositor.hpp

@@ -65,6 +65,7 @@ public:
     wlr_xdg_foreign_registry*        m_sWLRForeignRegistry;
     wlr_idle_inhibit_manager_v1*     m_sWLRIdleInhibitMgr;
     wlr_pointer_gestures_v1*         m_sWLRPointerGestures;
+    wlr_output_power_manager_v1*     m_sWLROutputPowerMgr;
     // ------------------------------------------------- //
 
 

src/events/Events.hpp

@@ -130,4 +130,7 @@ namespace Events {
     LISTENER(pinchBegin);
     LISTENER(pinchUpdate);
     LISTENER(pinchEnd);
+
+    // Power
+    LISTENER(powerMgrSetMode);
 };

src/events/Misc.cpp

@@ -164,3 +164,14 @@ void Events::listener_sessionActive(wl_listener* listener, void* data) {
 
     g_pCompositor->m_bSessionActive = true;
 }
+
+void Events::listener_powerMgrSetMode(wl_listener* listener, void* data) {
+    Debug::log(LOG, "PowerMgr set mode!");
+
+    const auto EVENT = (wlr_output_power_v1_set_mode_event*)data;
+
+    wlr_output_enable(EVENT->output, EVENT->mode == 1);
+    
+    if (!wlr_output_commit(EVENT->output))
+        Debug::log(ERR, "Couldn't set power mode");
+}

src/includes.hpp

@@ -93,6 +93,7 @@ extern "C" {
 #include <wlr/types/wlr_xdg_foreign_v1.h>
 #include <wlr/types/wlr_xdg_foreign_v2.h>
 #include <wlr/types/wlr_pointer_gestures_v1.h>
+#include <wlr/types/wlr_output_power_management_v1.h>
 }
 
 #undef class