Add support for wlr-output-power-management-unstable-v1

include/sway/output.h

@@ -171,4 +171,7 @@ void handle_output_manager_apply(struct wl_listener *listener, void *data);
 
 void handle_output_manager_test(struct wl_listener *listener, void *data);
 
+void handle_output_power_manager_set_mode(struct wl_listener *listener,
+	void *data);
+
 #endif

include/sway/server.h

@@ -9,6 +9,7 @@
 #include <wlr/types/wlr_data_device.h>
 #include <wlr/types/wlr_layer_shell_v1.h>
 #include <wlr/types/wlr_output_management_v1.h>
+#include <wlr/types/wlr_output_power_management_v1.h>
 #include <wlr/types/wlr_presentation_time.h>
 #include <wlr/types/wlr_relative_pointer_v1.h>
 #include <wlr/types/wlr_server_decoration.h>
@@ -73,6 +74,9 @@ struct sway_server {
 	struct wl_listener output_manager_apply;
 	struct wl_listener output_manager_test;
 
+	struct wlr_output_power_manager_v1 *output_power_manager_v1;
+	struct wl_listener output_power_manager_set_mode;
+
 	size_t txn_timeout_ms;
 	list_t *transactions;
 	list_t *dirty_nodes;

protocols/meson.build

@@ -18,6 +18,7 @@ protocols = [
 	['wlr-layer-shell-unstable-v1.xml'],
 	['idle.xml'],
 	['wlr-input-inhibitor-unstable-v1.xml'],
+	['wlr-output-power-management-unstable-v1.xml'],
 ]
 
 client_protocols = [

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>

sway/desktop/output.c

@@ -977,3 +977,21 @@ void handle_output_manager_test(struct wl_listener *listener, void *data) {
 	wlr_output_configuration_v1_send_succeeded(config);
 	wlr_output_configuration_v1_destroy(config);
 }
+
+void handle_output_power_manager_set_mode(struct wl_listener *listener,
+		void *data) {
+	struct wlr_output_power_v1_set_mode_event *event = data;
+	struct sway_output *output = event->output->data;
+
+	struct output_config *oc = new_output_config(output->wlr_output->name);
+	switch (event->mode) {
+	case ZWLR_OUTPUT_POWER_V1_MODE_OFF:
+		oc->dpms_state = DPMS_OFF;
+		break;
+	case ZWLR_OUTPUT_POWER_V1_MODE_ON:
+		oc->dpms_state = DPMS_ON;
+		break;
+	}
+	oc = store_output_config(oc);
+	apply_output_config(oc, output);
+}

sway/server.c

@@ -132,6 +132,13 @@ bool server_init(struct sway_server *server) {
 	wl_signal_add(&server->output_manager_v1->events.test,
 		&server->output_manager_test);
 
+	server->output_power_manager_v1 =
+		wlr_output_power_manager_v1_create(server->wl_display);
+	server->output_power_manager_set_mode.notify =
+		handle_output_power_manager_set_mode;
+	wl_signal_add(&server->output_power_manager_v1->events.set_mode,
+		&server->output_power_manager_set_mode);
+
 	wlr_export_dmabuf_manager_v1_create(server->wl_display);
 	wlr_screencopy_manager_v1_create(server->wl_display);
 	wlr_data_control_manager_v1_create(server->wl_display);