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backends: Add MetaInputMapper
This object takes care of mapping absolute devices to monitors, to do so it uses 3 heuristics, in this order of preference: - If a device is known to be builtin, it's assigned to the builtin monitor. - If input device and monitor match sizes (with an error margin of 5%) - If input device name and monitor vendor/product in EDID match somehow (from "full", through "partial", to just "vendor") The most favorable outputs are then assigned to each device, making sure not to assign two devices of the same kind to the same output. This object replaces (and is mostly 1:1 with) GsdDeviceMapper in g-s-d. That object would perform these same heuristics, and let mutter indirectly know through settings changes. This object allows doing the same in-process.
This commit is contained in:
Carlos Garnacho
Georges Basile Stavracas Neto
parent
df48b94889
commit
08a5e660d3
@ -141,6 +141,8 @@ libmutter_@LIBMUTTER_API_VERSION@_la_SOURCES = \
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backends/meta-idle-monitor-private.h \
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backends/meta-idle-monitor-dbus.c \
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backends/meta-idle-monitor-dbus.h \
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backends/meta-input-mapper.c \
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backends/meta-input-mapper-private.h \
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backends/meta-input-settings.c \
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backends/meta-input-settings-private.h \
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backends/meta-logical-monitor.c \
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40
src/backends/meta-input-mapper-private.h
Normal file
40
src/backends/meta-input-mapper-private.h
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@ -0,0 +1,40 @@
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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/*
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* Copyright 2018 Red Hat, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Carlos Garnacho <carlosg@gnome.org>
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*/
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#ifndef META_INPUT_MAPPER_H
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#define META_INPUT_MAPPER_H
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#include <clutter/clutter.h>
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#define META_TYPE_INPUT_MAPPER (meta_input_mapper_get_type ())
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G_DECLARE_FINAL_TYPE (MetaInputMapper, meta_input_mapper,
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META, INPUT_MAPPER, GObject)
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MetaInputMapper * meta_input_mapper_new (void);
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void meta_input_mapper_add_device (MetaInputMapper *mapper,
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ClutterInputDevice *device,
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gboolean builtin);
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void meta_input_mapper_remove_device (MetaInputMapper *mapper,
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ClutterInputDevice *device);
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#endif /* META_INPUT_MAPPER_H */
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617
src/backends/meta-input-mapper.c
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617
src/backends/meta-input-mapper.c
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@ -0,0 +1,617 @@
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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/*
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* Copyright 2018 Red Hat, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Carlos Garnacho <carlosg@gnome.org>
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*/
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#include "config.h"
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#include "meta-input-mapper-private.h"
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#include "meta-monitor-manager-private.h"
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#include "meta-logical-monitor.h"
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#include "meta-backend-private.h"
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#define MAX_SIZE_MATCH_DIFF 0.05
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typedef struct _MetaMapperInputInfo MetaMapperInputInfo;
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typedef struct _MetaMapperOutputInfo MetaMapperOutputInfo;
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typedef struct _MappingHelper MappingHelper;
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typedef struct _DeviceCandidates DeviceCandidates;
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struct _MetaInputMapper
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{
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GObject parent_instance;
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MetaMonitorManager *monitor_manager;
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ClutterDeviceManager *input_device_manager;
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GHashTable *input_devices; /* ClutterInputDevice -> MetaMapperInputInfo */
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GHashTable *output_devices; /* MetaLogicalMonitor -> MetaMapperOutputInfo */
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};
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typedef enum {
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META_INPUT_CAP_TOUCH = 1 << 0, /* touch device, either touchscreen or tablet */
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META_INPUT_CAP_STYLUS = 1 << 1, /* tablet pen */
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META_INPUT_CAP_ERASER = 1 << 2, /* tablet eraser */
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META_INPUT_CAP_PAD = 1 << 3, /* pad device, most usually in tablets */
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META_INPUT_CAP_CURSOR = 1 << 4 /* pointer-like device in tablets */
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} MetaInputCapabilityFlags;
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typedef enum {
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META_MATCH_IS_BUILTIN, /* Output is builtin, applies mainly to system-integrated devices */
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META_MATCH_SIZE, /* Size from input device and output match */
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META_MATCH_EDID_FULL, /* Full EDID model match, eg. "Cintiq 12WX" */
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META_MATCH_EDID_PARTIAL, /* Partial EDID model match, eg. "Cintiq" */
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META_MATCH_EDID_VENDOR, /* EDID vendor match, eg. "WAC" for Wacom */
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N_OUTPUT_MATCHES
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} MetaOutputMatchType;
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struct _MetaMapperInputInfo
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{
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ClutterInputDevice *device;
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MetaInputMapper *mapper;
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MetaMapperOutputInfo *output;
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guint builtin : 1;
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};
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struct _MetaMapperOutputInfo
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{
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MetaLogicalMonitor *logical_monitor;
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GList *input_devices;
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MetaInputCapabilityFlags attached_caps;
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};
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struct _MappingHelper
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{
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GArray *device_maps;
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};
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struct _DeviceCandidates
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{
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MetaMapperInputInfo *input;
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MetaMonitor *candidates[N_OUTPUT_MATCHES];
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MetaOutputMatchType best;
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};
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enum {
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DEVICE_MAPPED,
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N_SIGNALS
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};
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static guint signals[N_SIGNALS] = { 0, };
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G_DEFINE_TYPE (MetaInputMapper, meta_input_mapper, G_TYPE_OBJECT)
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static MetaMapperInputInfo *
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mapper_input_info_new (ClutterInputDevice *device,
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MetaInputMapper *mapper,
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gboolean builtin)
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{
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MetaMapperInputInfo *info;
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info = g_new0 (MetaMapperInputInfo, 1);
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info->mapper = mapper;
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info->device = device;
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info->builtin = builtin;
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return info;
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}
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static void
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mapper_input_info_free (MetaMapperInputInfo *info)
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{
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g_free (info);
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}
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static MetaMapperOutputInfo *
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mapper_output_info_new (MetaLogicalMonitor *logical_monitor)
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{
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MetaMapperOutputInfo *info;
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info = g_new0 (MetaMapperOutputInfo, 1);
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info->logical_monitor = logical_monitor;
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return info;
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}
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static void
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mapper_output_info_free (MetaMapperOutputInfo *info)
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{
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g_free (info);
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}
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static MetaInputCapabilityFlags
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mapper_input_info_get_caps (MetaMapperInputInfo *info)
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{
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ClutterInputDeviceType type;
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type = clutter_input_device_get_device_type (info->device);
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switch (type)
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{
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case CLUTTER_TOUCHSCREEN_DEVICE:
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return META_INPUT_CAP_TOUCH;
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case CLUTTER_TABLET_DEVICE:
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case CLUTTER_PEN_DEVICE:
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return META_INPUT_CAP_STYLUS;
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case CLUTTER_ERASER_DEVICE:
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return META_INPUT_CAP_ERASER;
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case CLUTTER_CURSOR_DEVICE:
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return META_INPUT_CAP_CURSOR;
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case CLUTTER_PAD_DEVICE:
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return META_INPUT_CAP_PAD;
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default:
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return 0;
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}
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}
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static void
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mapper_input_info_set_output (MetaMapperInputInfo *input,
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MetaMapperOutputInfo *output,
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MetaMonitor *monitor)
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{
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if (input->output == output)
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return;
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input->output = output;
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g_signal_emit (input->mapper, signals[DEVICE_MAPPED], 0,
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input->device,
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output ? output->logical_monitor : NULL, monitor);
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}
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static void
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mapper_output_info_add_input (MetaMapperOutputInfo *output,
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MetaMapperInputInfo *input,
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MetaMonitor *monitor)
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{
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g_assert (input->output == NULL);
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output->input_devices = g_list_prepend (output->input_devices, input);
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output->attached_caps |= mapper_input_info_get_caps (input);
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mapper_input_info_set_output (input, output, monitor);
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}
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static void
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mapper_output_info_remove_input (MetaMapperOutputInfo *output,
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MetaMapperInputInfo *input)
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{
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GList *l;
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g_assert (input->output == output);
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output->input_devices = g_list_remove (output->input_devices, input);
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output->attached_caps = 0;
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for (l = output->input_devices; l; l = l->next)
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output->attached_caps |= mapper_input_info_get_caps (l->data);
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mapper_input_info_set_output (input, NULL, NULL);
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}
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static void
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mapper_output_info_clear_inputs (MetaMapperOutputInfo *output)
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{
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while (output->input_devices)
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{
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MetaMapperInputInfo *input = output->input_devices->data;
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mapper_input_info_set_output (input, NULL, NULL);
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output->input_devices = g_list_remove (output->input_devices, input);
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}
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output->attached_caps = 0;
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}
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static void
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mapping_helper_init (MappingHelper *helper)
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{
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helper->device_maps = g_array_new (FALSE, FALSE, sizeof (DeviceCandidates));
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}
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static void
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mapping_helper_release (MappingHelper *helper)
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{
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g_array_unref (helper->device_maps);
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}
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static gboolean
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match_edid (MetaMapperInputInfo *input,
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MetaMonitor *monitor,
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MetaOutputMatchType *match_type)
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{
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const gchar *dev_name;
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dev_name = clutter_input_device_get_device_name (input->device);
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if (strcasestr (dev_name, meta_monitor_get_vendor (monitor)) == NULL)
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return FALSE;
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*match_type = META_MATCH_EDID_VENDOR;
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if (strcasestr (dev_name, meta_monitor_get_product (monitor)) != NULL)
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{
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*match_type = META_MATCH_EDID_FULL;
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}
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else
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{
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char **split;
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int i = 0;
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split = g_strsplit (meta_monitor_get_product (monitor), " ", -1);
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while (split[i])
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{
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if (strcasestr (dev_name, split[i]) != NULL)
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{
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*match_type = META_MATCH_EDID_PARTIAL;
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break;
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}
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}
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g_strfreev (split);
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}
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return TRUE;
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}
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static gboolean
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find_size_match (MetaMapperInputInfo *input,
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GList *monitors,
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MetaMonitor **matched_monitor)
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{
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double min_w_diff, min_h_diff;
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double i_width, i_height;
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gboolean found = FALSE;
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GList *l;
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min_w_diff = min_h_diff = MAX_SIZE_MATCH_DIFF;
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if (!clutter_input_device_get_physical_size (input->device, &i_width, &i_height))
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return FALSE;
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for (l = monitors; l; l = l->next)
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{
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MetaMonitor *monitor = l->data;
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double w_diff, h_diff;
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int o_width, o_height;
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meta_monitor_get_physical_dimensions (monitor, &o_width, &o_height);
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w_diff = ABS (1 - ((double) o_width / i_width));
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h_diff = ABS (1 - ((double) o_height / i_height));
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if (w_diff >= min_w_diff || h_diff >= min_h_diff)
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continue;
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*matched_monitor = monitor;
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min_w_diff = w_diff;
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min_h_diff = h_diff;
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found = TRUE;
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}
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return found;
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}
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static gboolean
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find_builtin_output (MetaInputMapper *mapper,
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MetaMonitor **matched_monitor)
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{
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MetaMonitor *panel;
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panel = meta_monitor_manager_get_laptop_panel (mapper->monitor_manager);
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*matched_monitor = panel;
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return panel != NULL;
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}
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static gboolean
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guess_candidates (MetaInputMapper *mapper,
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MetaMapperInputInfo *input,
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DeviceCandidates *info)
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{
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MetaOutputMatchType best = N_OUTPUT_MATCHES;
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GList *monitors, *l;
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MetaMonitor *matched_monitor = NULL;
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monitors = meta_monitor_manager_get_monitors (mapper->monitor_manager);
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for (l = monitors; l; l = l->next)
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{
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MetaOutputMatchType edid_match;
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if (match_edid (input, l->data, &edid_match))
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{
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best = MIN (best, edid_match);
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info->candidates[edid_match] = l->data;
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}
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}
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if (find_size_match (input, monitors, &matched_monitor))
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{
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best = MIN (best, META_MATCH_SIZE);
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info->candidates[META_MATCH_SIZE] = matched_monitor;
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}
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if (input->builtin)
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{
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best = MIN (best, META_MATCH_IS_BUILTIN);
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find_builtin_output (mapper, &info->candidates[META_MATCH_IS_BUILTIN]);
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}
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if (best < N_OUTPUT_MATCHES)
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{
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info->best = best;
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return TRUE;
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}
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else
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{
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return FALSE;
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}
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}
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static void
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mapping_helper_add (MappingHelper *helper,
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MetaMapperInputInfo *input,
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MetaInputMapper *mapper)
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{
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DeviceCandidates info = { 0, };
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guint i, pos = 0;
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info.input = input;
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if (!guess_candidates (mapper, input, &info))
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return;
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for (i = 0; i < helper->device_maps->len; i++)
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{
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DeviceCandidates *elem;
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elem = &g_array_index (helper->device_maps, DeviceCandidates, i);
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if (elem->best < info.best)
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pos = i;
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}
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if (pos >= helper->device_maps->len)
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g_array_append_val (helper->device_maps, info);
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else
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g_array_insert_val (helper->device_maps, pos, info);
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}
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static void
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mapping_helper_apply (MappingHelper *helper,
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MetaInputMapper *mapper)
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{
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guint i;
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/* Now, decide which input claims which output */
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for (i = 0; i < helper->device_maps->len; i++)
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{
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MetaMapperOutputInfo *output;
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DeviceCandidates *info;
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MetaOutputMatchType j;
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info = &g_array_index (helper->device_maps, DeviceCandidates, i);
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for (j = 0; j < N_OUTPUT_MATCHES; j++)
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{
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MetaLogicalMonitor *logical_monitor;
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if (!info->candidates[j])
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continue;
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logical_monitor =
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meta_monitor_get_logical_monitor (info->candidates[j]);
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output = g_hash_table_lookup (mapper->output_devices,
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logical_monitor);
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if (!output)
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continue;
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if (output->attached_caps & mapper_input_info_get_caps (info->input))
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continue;
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mapper_output_info_add_input (output, info->input,
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info->candidates[j]);
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break;
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}
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}
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}
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static void
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mapper_recalculate_candidates (MetaInputMapper *mapper)
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{
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MetaMapperInputInfo *input;
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MappingHelper helper;
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GHashTableIter iter;
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mapping_helper_init (&helper);
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g_hash_table_iter_init (&iter, mapper->input_devices);
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while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &input))
|
||||
mapping_helper_add (&helper, input, mapper);
|
||||
|
||||
mapping_helper_apply (&helper, mapper);
|
||||
mapping_helper_release (&helper);
|
||||
}
|
||||
|
||||
static void
|
||||
mapper_recalculate_input (MetaInputMapper *mapper,
|
||||
MetaMapperInputInfo *input)
|
||||
{
|
||||
MappingHelper helper;
|
||||
|
||||
mapping_helper_init (&helper);
|
||||
mapping_helper_add (&helper, input, mapper);
|
||||
mapping_helper_apply (&helper, mapper);
|
||||
mapping_helper_release (&helper);
|
||||
}
|
||||
|
||||
static void
|
||||
mapper_update_outputs (MetaInputMapper *mapper)
|
||||
{
|
||||
MetaMapperOutputInfo *output;
|
||||
GList *logical_monitors, *l;
|
||||
GHashTableIter iter;
|
||||
|
||||
g_hash_table_iter_init (&iter, mapper->output_devices);
|
||||
|
||||
while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &output))
|
||||
{
|
||||
mapper_output_info_clear_inputs (output);
|
||||
g_hash_table_iter_remove (&iter);
|
||||
}
|
||||
|
||||
logical_monitors =
|
||||
meta_monitor_manager_get_logical_monitors (mapper->monitor_manager);
|
||||
|
||||
for (l = logical_monitors; l; l = l->next)
|
||||
{
|
||||
MetaLogicalMonitor *logical_monitor = l->data;
|
||||
MetaMapperOutputInfo *info;
|
||||
|
||||
info = mapper_output_info_new (logical_monitor);
|
||||
g_hash_table_insert (mapper->output_devices, logical_monitor, info);
|
||||
}
|
||||
|
||||
mapper_recalculate_candidates (mapper);
|
||||
}
|
||||
|
||||
static void
|
||||
input_mapper_monitors_changed_cb (MetaMonitorManager *monitor_manager,
|
||||
MetaInputMapper *mapper)
|
||||
{
|
||||
mapper_update_outputs (mapper);
|
||||
}
|
||||
|
||||
static void
|
||||
input_mapper_device_removed_cb (ClutterDeviceManager *device_manager,
|
||||
ClutterInputDevice *device,
|
||||
MetaInputMapper *mapper)
|
||||
{
|
||||
meta_input_mapper_remove_device (mapper, device);
|
||||
}
|
||||
|
||||
static void
|
||||
meta_input_mapper_finalize (GObject *object)
|
||||
{
|
||||
MetaInputMapper *mapper = META_INPUT_MAPPER (object);
|
||||
|
||||
g_signal_handlers_disconnect_by_func (mapper->monitor_manager,
|
||||
input_mapper_monitors_changed_cb,
|
||||
mapper);
|
||||
g_signal_handlers_disconnect_by_func (mapper->input_device_manager,
|
||||
input_mapper_device_removed_cb,
|
||||
mapper);
|
||||
|
||||
g_hash_table_unref (mapper->input_devices);
|
||||
g_hash_table_unref (mapper->output_devices);
|
||||
|
||||
G_OBJECT_CLASS (meta_input_mapper_parent_class)->finalize (object);
|
||||
}
|
||||
|
||||
static void
|
||||
meta_input_mapper_constructed (GObject *object)
|
||||
{
|
||||
MetaInputMapper *mapper = META_INPUT_MAPPER (object);
|
||||
MetaBackend *backend;
|
||||
|
||||
G_OBJECT_CLASS (meta_input_mapper_parent_class)->constructed (object);
|
||||
|
||||
mapper->input_device_manager = clutter_device_manager_get_default ();
|
||||
g_signal_connect (mapper->input_device_manager, "device-removed",
|
||||
G_CALLBACK (input_mapper_device_removed_cb), mapper);
|
||||
|
||||
backend = meta_get_backend ();
|
||||
mapper->monitor_manager = meta_backend_get_monitor_manager (backend);
|
||||
g_signal_connect (mapper->monitor_manager, "monitors-changed-internal",
|
||||
G_CALLBACK (input_mapper_monitors_changed_cb), mapper);
|
||||
|
||||
mapper_update_outputs (mapper);
|
||||
}
|
||||
|
||||
static void
|
||||
meta_input_mapper_class_init (MetaInputMapperClass *klass)
|
||||
{
|
||||
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
||||
|
||||
object_class->constructed = meta_input_mapper_constructed;
|
||||
object_class->finalize = meta_input_mapper_finalize;
|
||||
|
||||
signals[DEVICE_MAPPED] =
|
||||
g_signal_new ("device-mapped",
|
||||
G_TYPE_FROM_CLASS (object_class),
|
||||
G_SIGNAL_RUN_LAST,
|
||||
0,
|
||||
NULL, NULL, NULL,
|
||||
G_TYPE_NONE, 3,
|
||||
CLUTTER_TYPE_INPUT_DEVICE,
|
||||
G_TYPE_POINTER, G_TYPE_POINTER);
|
||||
}
|
||||
|
||||
static void
|
||||
meta_input_mapper_init (MetaInputMapper *mapper)
|
||||
{
|
||||
mapper->input_devices =
|
||||
g_hash_table_new_full (NULL, NULL, NULL,
|
||||
(GDestroyNotify) mapper_input_info_free);
|
||||
mapper->output_devices =
|
||||
g_hash_table_new_full (NULL, NULL, NULL,
|
||||
(GDestroyNotify) mapper_output_info_free);
|
||||
}
|
||||
|
||||
MetaInputMapper *
|
||||
meta_input_mapper_new (void)
|
||||
{
|
||||
return g_object_new (META_TYPE_INPUT_MAPPER, NULL);
|
||||
}
|
||||
|
||||
void
|
||||
meta_input_mapper_add_device (MetaInputMapper *mapper,
|
||||
ClutterInputDevice *device,
|
||||
gboolean builtin)
|
||||
{
|
||||
MetaMapperInputInfo *info;
|
||||
|
||||
g_return_if_fail (mapper != NULL);
|
||||
g_return_if_fail (device != NULL);
|
||||
|
||||
if (g_hash_table_contains (mapper->input_devices, device))
|
||||
return;
|
||||
|
||||
info = mapper_input_info_new (device, mapper, builtin);
|
||||
g_hash_table_insert (mapper->input_devices, device, info);
|
||||
mapper_recalculate_input (mapper, info);
|
||||
}
|
||||
|
||||
void
|
||||
meta_input_mapper_remove_device (MetaInputMapper *mapper,
|
||||
ClutterInputDevice *device)
|
||||
{
|
||||
MetaMapperInputInfo *input;
|
||||
|
||||
g_return_if_fail (mapper != NULL);
|
||||
g_return_if_fail (device != NULL);
|
||||
|
||||
input = g_hash_table_lookup (mapper->input_devices, device);
|
||||
|
||||
if (input)
|
||||
{
|
||||
if (input->output)
|
||||
mapper_output_info_remove_input (input->output, input);
|
||||
g_hash_table_remove (mapper->input_devices, device);
|
||||
}
|
||||
}
|
||||
@ -184,6 +184,8 @@ mutter_sources = [
|
||||
'backends/meta-idle-monitor-dbus.c',
|
||||
'backends/meta-idle-monitor-dbus.h',
|
||||
'backends/meta-idle-monitor-private.h',
|
||||
'backends/meta-input-mapper.c',
|
||||
'backends/meta-input-mapper-private.h',
|
||||
'backends/meta-input-settings.c',
|
||||
'backends/meta-input-settings-private.h',
|
||||
'backends/meta-logical-monitor.c',
|
||||
|
||||
Loading…
Reference in New Issue
Block a user