20a91aa4e9
Create a color manager type that eventually will be the high level manager of color related behavior, such as ICC profiles and color "temperature" a.k.a. night light. For now, it's only an empty shell. It's also constructed by the actual backend, as at a later point, the X11 and native color management implementations will differ. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2141>
145 lines
4.5 KiB
C
145 lines
4.5 KiB
C
/*
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* Copyright (C) 2021 Jeremy Cline
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* Copyright (C) 2021 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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/**
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* SECTION:meta-color-manager
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* @title: MetaColorManager
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* @short_description: Interfaces for managing color-related properties like
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* color look-up tables and color spaces.
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*
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* Each MetaBackend has a MetaColorManager which includes interfaces for querying
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* and altering the color-related properties for displays associated with that
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* backend.
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*
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* These tasks include configuring the hardware's lookup tables (LUTs) used to
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* apply or remove transfer functions (traditionally called "gamma"), set up
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* color space conversions (CSCs), and for determining or setting the output
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* color space and transfer function.
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*
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* Mutter itself does not store and manage device ICC profiles; this task is
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* handled by [colord](https://www.freedesktop.org/software/colord/). Colord
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* maintains a database of devices (displays, printers, etc) and color profiles,
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* including the default output profile for a device. Users configure colord
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* with their preferred color profile for a device via an external application
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* like GNOME Control Center or the colormgr CLI.
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*
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* Colord defines [a specification for device and profile names](
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* https://github.com/hughsie/colord/blob/1.4.5/doc/device-and-profile-naming-spec.txt)
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* which is used to map Colord's devices to Mutter's #MetaMonitor.
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*/
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#include "config.h"
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#include "backends/meta-color-manager-private.h"
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#include "backends/meta-backend-types.h"
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#include "backends/meta-monitor.h"
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enum
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{
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PROP_0,
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PROP_BACKEND,
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N_PROPS
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};
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static GParamSpec *obj_props[N_PROPS];
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typedef struct _MetaColorManagerPrivate
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{
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MetaBackend *backend;
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} MetaColorManagerPrivate;
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G_DEFINE_TYPE_WITH_PRIVATE (MetaColorManager, meta_color_manager, G_TYPE_OBJECT)
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static void
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meta_color_manager_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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MetaColorManager *color_manager = META_COLOR_MANAGER (object);
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MetaColorManagerPrivate *priv =
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meta_color_manager_get_instance_private (color_manager);
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switch (prop_id)
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{
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case PROP_BACKEND:
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priv->backend = g_value_get_object (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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meta_color_manager_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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MetaColorManager *color_manager = META_COLOR_MANAGER (object);
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MetaColorManagerPrivate *priv =
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meta_color_manager_get_instance_private (color_manager);
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switch (prop_id)
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{
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case PROP_BACKEND:
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g_value_set_object (value, priv->backend);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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meta_color_manager_class_init (MetaColorManagerClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->set_property = meta_color_manager_set_property;
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object_class->get_property = meta_color_manager_get_property;
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obj_props[PROP_BACKEND] =
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g_param_spec_object ("backend",
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"backend",
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"MetaBackend",
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META_TYPE_BACKEND,
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G_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY |
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G_PARAM_STATIC_STRINGS);
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g_object_class_install_properties (object_class, N_PROPS, obj_props);
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}
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static void
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meta_color_manager_init (MetaColorManager *color_manager)
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{
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}
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MetaBackend *
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meta_color_manager_get_backend (MetaColorManager *color_manager)
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{
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MetaColorManagerPrivate *priv =
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meta_color_manager_get_instance_private (color_manager);
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return priv->backend;
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}
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