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mutter-performance-source/src/backends/meta-color-device.c
Simon McVittie ed12df1099 color-device: Don't close lcms profile on error from cd_icc_load_handle 
As implemented in colord 1.4.6, cd_icc_load_handle() has three possible
results:

1. success, taking ownership of the profile;
2. failure because cmsGetProfileContextID returns NULL, *not* taking
   ownership of the profile;
3. failure in cd_icc_load(), taking ownership of the profile.

The previous commit ensures that we are not in case 2.

In case 3 where cd_icc_load() fails, ownership was already given to
the colord CdIcc object, so it will be freed when the g_autoptr unrefs
the CdIcc, and we must not free it again: that would be a double-free,
potentially resulting in memory corruption.

Resolves: https://gitlab.gnome.org/GNOME/mutter/-/issues/2659
Signed-off-by: Simon McVittie <smcv@debian.org>
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2877>
2023-03-03 12:07:02 +00:00

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/*
* Copyright (C) 2007 William Jon McCann <mccann@jhu.edu>
* Copyright (C) 2011-2013 Richard Hughes <richard@hughsie.com>
* Copyright (C) 2020 NVIDIA CORPORATION
* Copyright (C) 2021 Red Hat Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "backends/meta-color-device.h"
#include <colord.h>
#include "backends/meta-color-device.h"
#include "backends/meta-color-manager-private.h"
#include "backends/meta-color-profile.h"
#include "backends/meta-color-store.h"
#include "backends/meta-monitor.h"
#define EFI_PANEL_COLOR_INFO_PATH \
"/sys/firmware/efi/efivars/INTERNAL_PANEL_COLOR_INFO-01e1ada1-79f2-46b3-8d3e-71fc0996ca6b"
enum
{
READY,
CHANGED,
UPDATED,
N_SIGNALS
};
static guint signals[N_SIGNALS];
typedef enum
{
PENDING_EDID_PROFILE = 1 << 0,
PENDING_PROFILE_READY = 1 << 1,
PENDING_CONNECTED = 1 << 2,
} PendingState;
struct _MetaColorDevice
{
GObject parent;
MetaColorManager *color_manager;
char *cd_device_id;
MetaMonitor *monitor;
CdDevice *cd_device;
MetaColorProfile *device_profile;
gulong device_profile_ready_handler_id;
MetaColorProfile *assigned_profile;
gulong assigned_profile_ready_handler_id;
GCancellable *assigned_profile_cancellable;
GCancellable *cancellable;
PendingState pending_state;
gboolean is_ready;
};
G_DEFINE_TYPE (MetaColorDevice, meta_color_device,
G_TYPE_OBJECT)
static const char *efivar_test_path = NULL;
/*
* Generate a colord DeviceId according to
* `device-and-profiling-naming-spec.txt`.
*
* A rough summary is that it should use the following format:
*
* xrandr[-{%edid_vendor_name}][-{%edid_product][-{%edid_serial}]
*
*/
static char *
generate_cd_device_id (MetaMonitor *monitor)
{
GString *device_id;
const char *vendor;
const char *product;
const char *serial;
vendor = meta_monitor_get_vendor (monitor);
product = meta_monitor_get_product (monitor);
serial = meta_monitor_get_serial (monitor);
device_id = g_string_new ("xrandr");
if (!vendor && !product && !serial)
{
g_string_append_printf (device_id,
"-%s",
meta_monitor_get_connector (monitor));
goto out;
}
if (vendor)
{
MetaBackend *backend = meta_monitor_get_backend (monitor);
g_autofree char *vendor_name = NULL;
vendor_name = meta_backend_get_vendor_name (backend, vendor);
g_string_append_printf (device_id, "-%s",
vendor_name ? vendor_name : vendor);
}
if (product)
g_string_append_printf (device_id, "-%s", product);
if (serial)
g_string_append_printf (device_id, "-%s", serial);
out:
return g_string_free (device_id, FALSE);
}
static void
ensure_default_profile_cb (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
MetaColorStore *color_store = META_COLOR_STORE (source_object);
MetaColorDevice *color_device;
g_autoptr (MetaColorProfile) color_profile = NULL;
g_autoptr (GError) error = NULL;
color_profile = meta_color_store_ensure_colord_profile_finish (color_store,
res,
&error);
if (!color_profile)
{
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
return;
g_warning ("Failed to create color profile from colord profile: %s",
error->message);
}
color_device = META_COLOR_DEVICE (user_data);
if (color_device->assigned_profile == color_profile)
return;
g_set_object (&color_device->assigned_profile, color_profile);
g_signal_emit (color_device, signals[CHANGED], 0);
}
static void
update_assigned_profile (MetaColorDevice *color_device)
{
MetaColorManager *color_manager = color_device->color_manager;
MetaColorStore *color_store =
meta_color_manager_get_color_store (color_manager);
CdProfile *default_profile;
GCancellable *cancellable;
default_profile = cd_device_get_default_profile (color_device->cd_device);
if (color_device->assigned_profile &&
meta_color_profile_get_cd_profile (color_device->assigned_profile) ==
default_profile)
return;
if (color_device->assigned_profile_cancellable)
{
g_cancellable_cancel (color_device->assigned_profile_cancellable);
g_clear_object (&color_device->assigned_profile_cancellable);
}
if (!default_profile)
{
g_clear_object (&color_device->assigned_profile);
return;
}
cancellable = g_cancellable_new ();
color_device->assigned_profile_cancellable = cancellable;
meta_color_store_ensure_colord_profile (color_store,
default_profile,
cancellable,
ensure_default_profile_cb,
color_device);
}
static void
on_cd_device_changed (CdDevice *cd_device,
MetaColorDevice *color_device)
{
update_assigned_profile (color_device);
}
typedef struct
{
GMainLoop *loop;
CdDevice *cd_device;
GError *error;
} FindDeviceData;
static void
on_find_device (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
CdClient *cd_client = CD_CLIENT (source_object);
FindDeviceData *data = user_data;
data->cd_device = cd_client_find_device_finish (cd_client, res, &data->error);
g_main_loop_quit (data->loop);
}
static CdDevice *
find_device_sync (CdClient *cd_client,
const char *cd_device_id,
GError **error)
{
g_autoptr (GMainContext) main_context = NULL;
g_autoptr (GMainLoop) main_loop = NULL;
FindDeviceData data = {};
main_context = g_main_context_new ();
main_loop = g_main_loop_new (main_context, FALSE);
g_main_context_push_thread_default (main_context);
data = (FindDeviceData) {
.loop = main_loop,
};
cd_client_find_device (cd_client, cd_device_id, NULL,
on_find_device,
&data);
g_main_loop_run (main_loop);
g_main_context_pop_thread_default (main_context);
if (data.error)
g_propagate_error (error, data.error);
return data.cd_device;
}
static void
meta_color_device_dispose (GObject *object)
{
MetaColorDevice *color_device = META_COLOR_DEVICE (object);
MetaColorManager *color_manager = color_device->color_manager;
CdClient *cd_client = meta_color_manager_get_cd_client (color_manager);
CdDevice *cd_device;
const char *cd_device_id;
meta_topic (META_DEBUG_COLOR,
"Removing color device '%s'", color_device->cd_device_id);
if (color_device->assigned_profile_cancellable)
{
g_cancellable_cancel (color_device->assigned_profile_cancellable);
g_clear_object (&color_device->assigned_profile_cancellable);
}
g_cancellable_cancel (color_device->cancellable);
g_clear_object (&color_device->cancellable);
g_clear_signal_handler (&color_device->device_profile_ready_handler_id,
color_device->device_profile);
g_clear_object (&color_device->assigned_profile);
g_clear_object (&color_device->device_profile);
cd_device = color_device->cd_device;
cd_device_id = color_device->cd_device_id;
if (!cd_device && cd_device_id)
{
g_autoptr (GError) error = NULL;
cd_device = find_device_sync (cd_client,
cd_device_id,
&error);
if (!cd_device &&
!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND))
{
g_warning ("Failed to find colord device %s: %s",
cd_device_id, error->message);
}
}
if (cd_device)
cd_client_delete_device (cd_client, cd_device, NULL, NULL, NULL);
g_clear_pointer (&color_device->cd_device_id, g_free);
g_clear_object (&color_device->cd_device);
g_clear_object (&color_device->monitor);
G_OBJECT_CLASS (meta_color_device_parent_class)->dispose (object);
}
static void
meta_color_device_class_init (MetaColorDeviceClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->dispose = meta_color_device_dispose;
signals[READY] =
g_signal_new ("ready",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, 0,
NULL, NULL, NULL,
G_TYPE_NONE, 1,
G_TYPE_BOOLEAN);
signals[CHANGED] =
g_signal_new ("changed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, 0,
NULL, NULL, NULL,
G_TYPE_NONE, 0);
signals[UPDATED] =
g_signal_new ("updated",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, 0,
NULL, NULL, NULL,
G_TYPE_NONE, 0);
}
static void
meta_color_device_init (MetaColorDevice *color_device)
{
}
static void
meta_color_device_notify_ready (MetaColorDevice *color_device,
gboolean success)
{
color_device->is_ready = TRUE;
g_signal_emit (color_device, signals[READY], 0, success);
}
static void
maybe_finish_setup (MetaColorDevice *color_device)
{
if (color_device->pending_state)
return;
meta_topic (META_DEBUG_COLOR, "Color device '%s' is ready",
color_device->cd_device_id);
meta_color_device_notify_ready (color_device, TRUE);
}
static void
on_cd_device_connected (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
CdDevice *cd_device = CD_DEVICE (source_object);
MetaColorDevice *color_device = user_data;
g_autoptr (GError) error = NULL;
if (!cd_device_connect_finish (cd_device, res, &error))
{
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
return;
color_device->pending_state &= ~PENDING_CONNECTED;
g_warning ("Failed to connect to colord device %s: %s",
color_device->cd_device_id,
error->message);
g_cancellable_cancel (color_device->cancellable);
meta_color_device_notify_ready (color_device, FALSE);
return;
}
else
{
color_device->pending_state &= ~PENDING_CONNECTED;
meta_topic (META_DEBUG_COLOR, "Color device '%s' connected",
color_device->cd_device_id);
}
g_signal_connect (cd_device, "changed",
G_CALLBACK (on_cd_device_changed), color_device);
update_assigned_profile (color_device);
maybe_finish_setup (color_device);
}
static void
on_profile_ready (MetaColorProfile *color_profile,
gboolean success,
MetaColorDevice *color_device)
{
color_device->pending_state &= ~PENDING_PROFILE_READY;
if (!success)
{
g_clear_object (&color_device->device_profile);
g_cancellable_cancel (color_device->cancellable);
meta_color_device_notify_ready (color_device, FALSE);
return;
}
maybe_finish_setup (color_device);
}
static void
ensure_device_profile_cb (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
MetaColorStore *color_store = META_COLOR_STORE (source_object);
MetaColorDevice *color_device = META_COLOR_DEVICE (user_data);
MetaColorProfile *color_profile;
g_autoptr (GError) error = NULL;
color_profile = meta_color_store_ensure_device_profile_finish (color_store,
res,
&error);
if (!color_profile)
{
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
return;
g_warning ("Failed to create device color profile: %s", error->message);
color_device->pending_state &= ~PENDING_EDID_PROFILE;
g_cancellable_cancel (color_device->cancellable);
meta_color_device_notify_ready (color_device, FALSE);
return;
}
meta_topic (META_DEBUG_COLOR, "Color device '%s' generated",
color_device->cd_device_id);
color_device->pending_state &= ~PENDING_EDID_PROFILE;
g_set_object (&color_device->device_profile, color_profile);
if (!meta_color_profile_is_ready (color_profile))
{
color_device->device_profile_ready_handler_id =
g_signal_connect (color_profile, "ready",
G_CALLBACK (on_profile_ready),
color_device);
color_device->pending_state |= PENDING_PROFILE_READY;
}
else
{
maybe_finish_setup (color_device);
}
}
static void
on_cd_device_created (GObject *object,
GAsyncResult *res,
gpointer user_data)
{
CdClient *cd_client = CD_CLIENT (object);
MetaColorDevice *color_device = user_data;
MetaColorManager *color_manager;
MetaColorStore *color_store;
CdDevice *cd_device;
g_autoptr (GError) error = NULL;
cd_device = cd_client_create_device_finish (cd_client, res, &error);
if (!cd_device)
{
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
return;
g_warning ("Failed to create colord device for '%s': %s",
color_device->cd_device_id,
error->message);
meta_color_device_notify_ready (color_device, FALSE);
return;
}
color_device->cd_device = cd_device;
cd_device_connect (cd_device, color_device->cancellable,
on_cd_device_connected, color_device);
color_device->pending_state |= PENDING_CONNECTED;
color_manager = color_device->color_manager;
color_store = meta_color_manager_get_color_store (color_manager);
if (meta_color_store_ensure_device_profile (color_store,
color_device,
color_device->cancellable,
ensure_device_profile_cb,
color_device))
color_device->pending_state |= PENDING_EDID_PROFILE;
}
static void
add_device_property (GHashTable *device_props,
const char *key,
const char *value)
{
g_hash_table_insert (device_props,
(gpointer) key,
g_strdup (value));
}
static GHashTable *
generate_color_device_props (MetaMonitor *monitor)
{
MetaBackend *backend = meta_monitor_get_backend (monitor);
GHashTable *device_props;
g_autofree char *vendor_name = NULL;
const char *edid_checksum_md5;
device_props = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, g_free);
add_device_property (device_props,
CD_DEVICE_PROPERTY_KIND,
cd_device_kind_to_string (CD_DEVICE_KIND_DISPLAY));
add_device_property (device_props,
CD_DEVICE_PROPERTY_MODE,
meta_monitor_is_virtual (monitor) ?
cd_device_mode_to_string (CD_DEVICE_MODE_VIRTUAL) :
cd_device_mode_to_string (CD_DEVICE_MODE_PHYSICAL));
add_device_property (device_props,
CD_DEVICE_PROPERTY_COLORSPACE,
cd_colorspace_to_string (CD_COLORSPACE_RGB));
vendor_name =
meta_backend_get_vendor_name (backend, meta_monitor_get_vendor (monitor));
add_device_property (device_props,
CD_DEVICE_PROPERTY_VENDOR,
vendor_name);
add_device_property (device_props,
CD_DEVICE_PROPERTY_MODEL,
meta_monitor_get_product (monitor));
add_device_property (device_props,
CD_DEVICE_PROPERTY_SERIAL,
meta_monitor_get_serial (monitor));
add_device_property (device_props,
CD_DEVICE_METADATA_XRANDR_NAME,
meta_monitor_get_connector (monitor));
add_device_property (device_props,
CD_DEVICE_METADATA_OUTPUT_PRIORITY,
meta_monitor_is_primary (monitor) ?
CD_DEVICE_METADATA_OUTPUT_PRIORITY_PRIMARY :
CD_DEVICE_METADATA_OUTPUT_PRIORITY_SECONDARY);
edid_checksum_md5 = meta_monitor_get_edid_checksum_md5 (monitor);
if (edid_checksum_md5)
{
add_device_property (device_props,
CD_DEVICE_METADATA_OUTPUT_EDID_MD5,
edid_checksum_md5);
}
if (meta_monitor_is_laptop_panel (monitor))
{
add_device_property (device_props,
CD_DEVICE_PROPERTY_EMBEDDED,
NULL);
}
return device_props;
}
MetaColorDevice *
meta_color_device_new (MetaColorManager *color_manager,
MetaMonitor *monitor)
{
MetaColorDevice *color_device;
g_autoptr (GHashTable) device_props = NULL;
device_props = generate_color_device_props (monitor);
color_device = g_object_new (META_TYPE_COLOR_DEVICE, NULL);
color_device->cd_device_id = generate_cd_device_id (monitor);
color_device->monitor = g_object_ref (monitor);
color_device->cancellable = g_cancellable_new ();
color_device->color_manager = color_manager;
cd_client_create_device (meta_color_manager_get_cd_client (color_manager),
color_device->cd_device_id,
CD_OBJECT_SCOPE_TEMP,
device_props,
color_device->cancellable,
on_cd_device_created,
color_device);
return color_device;
}
void
meta_color_device_destroy (MetaColorDevice *color_device)
{
g_object_run_dispose (G_OBJECT (color_device));
g_object_unref (color_device);
}
void
meta_color_device_update_monitor (MetaColorDevice *color_device,
MetaMonitor *monitor)
{
g_warn_if_fail (meta_monitor_is_same_as (monitor, color_device->monitor));
g_set_object (&color_device->monitor, monitor);
}
const char *
meta_color_device_get_id (MetaColorDevice *color_device)
{
return color_device->cd_device_id;
}
typedef struct
{
MetaColorDevice *color_device;
char *file_path;
GBytes *bytes;
CdIcc *cd_icc;
MetaColorCalibration *color_calibration;
} GenerateProfileData;
static void
generate_profile_data_free (GenerateProfileData *data)
{
g_free (data->file_path);
g_clear_object (&data->cd_icc);
g_clear_pointer (&data->bytes, g_bytes_unref);
g_clear_pointer (&data->color_calibration, meta_color_calibration_free);
g_free (data);
}
static void
on_profile_written (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
GFile *file = G_FILE (source_object);
g_autoptr (GTask) task = G_TASK (user_data);
GenerateProfileData *data = g_task_get_task_data (task);
MetaColorManager *color_manager;
g_autoptr (GError) error = NULL;
MetaColorProfile *color_profile;
if (!g_file_replace_contents_finish (file, res, NULL, &error))
{
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
{
g_task_return_error (task, g_steal_pointer (&error));
return;
}
g_prefix_error (&error, "Failed to write ICC profile to %s:",
g_file_peek_path (file));
g_task_return_error (task, g_steal_pointer (&error));
return;
}
meta_topic (META_DEBUG_COLOR, "On-disk device profile '%s' updated",
g_file_peek_path (file));
color_manager = data->color_device->color_manager;
color_profile =
meta_color_profile_new_from_icc (color_manager,
g_steal_pointer (&data->cd_icc),
g_steal_pointer (&data->bytes),
g_steal_pointer (&data->color_calibration));
g_task_return_pointer (task, color_profile, g_object_unref);
}
static void
do_save_icc_profile (GTask *task)
{
GenerateProfileData *data = g_task_get_task_data (task);
const uint8_t *profile_data;
size_t profile_data_size;
g_autoptr (GFile) file = NULL;
profile_data = g_bytes_get_data (data->bytes, &profile_data_size);
file = g_file_new_for_path (data->file_path);
g_file_replace_contents_async (file,
(const char *) profile_data,
profile_data_size,
NULL,
FALSE,
G_FILE_CREATE_NONE,
g_task_get_cancellable (task),
on_profile_written,
task);
}
static void
on_directories_created (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
GFile *directory = G_FILE (source_object);
GTask *thread_task = G_TASK (res);
GTask *task = G_TASK (user_data);
if (g_cancellable_is_cancelled (g_task_get_cancellable (thread_task)))
{
g_task_return_new_error (task, G_IO_ERROR, G_IO_ERROR_CANCELLED,
"Cancelled");
return;
}
meta_topic (META_DEBUG_COLOR, "ICC profile directory '%s' created",
g_file_peek_path (directory));
do_save_icc_profile (task);
}
static void
create_directories_in_thread (GTask *thread_task,
gpointer source_object,
gpointer task_data,
GCancellable *cancellable)
{
GFile *directory = G_FILE (source_object);
g_autoptr (GError) error = NULL;
if (!g_file_make_directory_with_parents (directory, cancellable, &error))
g_task_return_error (thread_task, g_steal_pointer (&error));
else
g_task_return_boolean (thread_task, TRUE);
}
static void
create_icc_profiles_directory (GFile *directory,
GTask *task)
{
g_autoptr (GTask) thread_task = NULL;
thread_task = g_task_new (G_OBJECT (directory),
g_task_get_cancellable (task),
on_directories_created, task);
g_task_run_in_thread (thread_task, create_directories_in_thread);
}
static void
on_directory_queried (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
GFile *directory = G_FILE (source_object);
g_autoptr (GTask) task = G_TASK (user_data);
g_autoptr (GFileInfo) file_info = NULL;
g_autoptr (GError) error = NULL;
file_info = g_file_query_info_finish (directory, res, &error);
if (!file_info)
{
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
{
g_task_return_error (task, g_steal_pointer (&error));
return;
}
else if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND))
{
create_icc_profiles_directory (directory, g_steal_pointer (&task));
return;
}
else
{
g_task_return_new_error (task, G_IO_ERROR, G_IO_ERROR_FAILED,
"Failed to ensure data directory: %s",
error->message);
return;
}
}
do_save_icc_profile (g_steal_pointer (&task));
}
static void
save_icc_profile (const char *file_path,
GTask *task)
{
g_autoptr (GFile) file = NULL;
g_autoptr (GFile) directory = NULL;
file = g_file_new_for_path (file_path);
directory = g_file_get_parent (file);
g_file_query_info_async (directory,
G_FILE_ATTRIBUTE_STANDARD_TYPE,
G_FILE_QUERY_INFO_NONE,
G_PRIORITY_DEFAULT,
g_task_get_cancellable (task),
on_directory_queried,
task);
}
static CdIcc *
create_icc_profile_from_edid (MetaColorDevice *color_device,
const MetaEdidInfo *edid_info,
const char *file_path,
GError **error)
{
MetaColorManager *color_manager = color_device->color_manager;
MetaMonitor *monitor = color_device->monitor;
g_autoptr (CdIcc) cd_icc = NULL;
cmsCIExyYTRIPLE chroma;
cmsCIExyY white_point;
cmsToneCurve *transfer_curve[3] = { NULL, NULL, NULL };
cmsContext lcms_context;
const char *product;
const char *vendor;
const char *serial;
g_autofree char *vendor_name = NULL;
cmsHPROFILE lcms_profile;
if (G_APPROX_VALUE (edid_info->red_x, 0.0, FLT_EPSILON) ||
G_APPROX_VALUE (edid_info->red_y, 0.0, FLT_EPSILON) ||
G_APPROX_VALUE (edid_info->green_x, 0.0, FLT_EPSILON) ||
G_APPROX_VALUE (edid_info->green_y, 0.0, FLT_EPSILON) ||
G_APPROX_VALUE (edid_info->blue_x, 0.0, FLT_EPSILON) ||
G_APPROX_VALUE (edid_info->blue_y, 0.0, FLT_EPSILON) ||
G_APPROX_VALUE (edid_info->white_x, 0.0, FLT_EPSILON) ||
G_APPROX_VALUE (edid_info->white_y, 0.0, FLT_EPSILON))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"EDID for %s contains bogus Color Characteristics",
meta_color_device_get_id (color_device));
return NULL;
}
if (edid_info->gamma + FLT_EPSILON < 1.0 ||
edid_info->gamma > 4.0)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"EDID for %s contains bogus Display Transfer "
"Characteristics (GAMMA)",
meta_color_device_get_id (color_device));
return NULL;
}
lcms_context = meta_color_manager_get_lcms_context (color_manager);
if (!lcms_context)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Internal error: no LCMS context available");
return NULL;
}
cd_icc = cd_icc_new ();
chroma.Red.x = edid_info->red_x;
chroma.Red.y = edid_info->red_y;
chroma.Green.x = edid_info->green_x;
chroma.Green.y = edid_info->green_y;
chroma.Blue.x = edid_info->blue_x;
chroma.Blue.y = edid_info->blue_y;
white_point.x = edid_info->white_x;
white_point.y = edid_info->white_y;
white_point.Y = 1.0;
/* Estimate the transfer function for the gamma */
transfer_curve[0] = cmsBuildGamma (NULL, edid_info->gamma);
transfer_curve[1] = transfer_curve[0];
transfer_curve[2] = transfer_curve[0];
lcms_profile = cmsCreateRGBProfileTHR (lcms_context,
&white_point,
&chroma,
transfer_curve);
cmsFreeToneCurve (transfer_curve[0]);
if (!lcms_profile)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"cmsCreateRGBProfileTHR for %s failed",
meta_color_device_get_id (color_device));
return NULL;
}
cmsSetHeaderRenderingIntent (lcms_profile, INTENT_PERCEPTUAL);
cmsSetDeviceClass (lcms_profile, cmsSigDisplayClass);
g_warn_if_fail (cmsGetProfileContextID (lcms_profile));
if (!cd_icc_load_handle (cd_icc, g_steal_pointer (&lcms_profile),
CD_ICC_LOAD_FLAGS_PRIMARIES, error))
return NULL;
cd_icc_add_metadata (cd_icc, CD_PROFILE_PROPERTY_FILENAME, file_path);
cd_icc_add_metadata (cd_icc,
CD_PROFILE_METADATA_DATA_SOURCE,
CD_PROFILE_METADATA_DATA_SOURCE_EDID);
cd_icc_set_copyright (cd_icc, NULL,
"This profile is free of known copyright restrictions.");
product = meta_monitor_get_product (monitor);
vendor = meta_monitor_get_vendor (monitor);
serial = meta_monitor_get_serial (monitor);
if (vendor)
{
MetaBackend *backend = meta_monitor_get_backend (monitor);
vendor_name = meta_backend_get_vendor_name (backend, vendor);
}
/* set 'ICC meta Tag for Monitor Profiles' data */
cd_icc_add_metadata (cd_icc, CD_PROFILE_METADATA_EDID_MD5,
meta_monitor_get_edid_checksum_md5 (monitor));
if (product)
cd_icc_add_metadata (cd_icc, CD_PROFILE_METADATA_EDID_MODEL, product);
if (serial)
cd_icc_add_metadata (cd_icc, CD_PROFILE_METADATA_EDID_SERIAL, serial);
if (vendor)
cd_icc_add_metadata (cd_icc, CD_PROFILE_METADATA_EDID_MNFT, vendor);
if (vendor_name)
{
cd_icc_add_metadata (cd_icc, CD_PROFILE_METADATA_EDID_VENDOR,
vendor_name);
}
/* Set high level monitor details metadata */
if (!product)
product = "Unknown monitor";
cd_icc_set_model (cd_icc, NULL, product);
cd_icc_set_description (cd_icc, NULL,
meta_monitor_get_display_name (monitor));
if (!vendor_name)
{
if (vendor)
vendor_name = g_strdup (vendor);
else
vendor_name = g_strdup ("Unknown vendor");
}
cd_icc_set_manufacturer (cd_icc, NULL, vendor_name);
/* Set the framework creator metadata */
cd_icc_add_metadata (cd_icc,
CD_PROFILE_METADATA_CMF_PRODUCT,
PACKAGE_NAME);
cd_icc_add_metadata (cd_icc,
CD_PROFILE_METADATA_CMF_BINARY,
PACKAGE_NAME);
cd_icc_add_metadata (cd_icc,
CD_PROFILE_METADATA_CMF_VERSION,
PACKAGE_VERSION);
cd_icc_add_metadata (cd_icc,
CD_PROFILE_METADATA_MAPPING_DEVICE_ID,
color_device->cd_device_id);
return g_steal_pointer (&cd_icc);
}
static void
create_device_profile_from_edid (MetaColorDevice *color_device,
GTask *task)
{
const MetaEdidInfo *edid_info;
edid_info = meta_monitor_get_edid_info (color_device->monitor);
if (edid_info)
{
g_autoptr (CdIcc) cd_icc = NULL;
GBytes *bytes;
g_autoptr (GError) error = NULL;
GenerateProfileData *data = g_task_get_task_data (task);
const char *file_path = data->file_path;
g_autofree char *file_md5_checksum = NULL;
meta_topic (META_DEBUG_COLOR,
"Generating ICC profile for '%s' from EDID",
meta_color_device_get_id (color_device));
cd_icc = create_icc_profile_from_edid (color_device,
edid_info, file_path,
&error);
if (!cd_icc)
{
g_task_return_error (task, g_steal_pointer (&error));
g_object_unref (task);
return;
}
bytes = cd_icc_save_data (cd_icc, CD_ICC_SAVE_FLAGS_NONE, &error);
if (!bytes)
{
g_task_return_error (task, g_steal_pointer (&error));
g_object_unref (task);
return;
}
file_md5_checksum = g_compute_checksum_for_bytes (G_CHECKSUM_MD5, bytes);
cd_icc_add_metadata (cd_icc, CD_PROFILE_METADATA_FILE_CHECKSUM,
file_md5_checksum);
data->color_calibration =
meta_color_calibration_new (cd_icc, NULL);
data->cd_icc = g_steal_pointer (&cd_icc);
data->bytes = bytes;
save_icc_profile (file_path, task);
}
else
{
g_task_return_new_error (task, G_IO_ERROR, G_IO_ERROR_FAILED,
"No EDID available");
g_object_unref (task);
}
}
static void
set_icc_checksum (CdIcc *cd_icc,
GBytes *bytes)
{
g_autofree char *md5_checksum = NULL;
md5_checksum = g_compute_checksum_for_bytes (G_CHECKSUM_MD5, bytes);
cd_icc_add_metadata (cd_icc, CD_PROFILE_METADATA_FILE_CHECKSUM, md5_checksum);
}
static void
on_efi_panel_color_info_loaded (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
GFile *file = G_FILE (source_object);
g_autoptr (GTask) task = G_TASK (user_data);
MetaColorDevice *color_device =
META_COLOR_DEVICE (g_task_get_source_object (task));
g_autoptr (GError) error = NULL;
g_autofree char *contents = NULL;
size_t length;
if (g_file_load_contents_finish (file, res,
&contents,
&length,
NULL,
&error))
{
g_autoptr (CdIcc) calibration_cd_icc = NULL;
g_autoptr (CdIcc) srgb_cd_icc = NULL;
meta_topic (META_DEBUG_COLOR,
"Generating ICC profile for '%s' from EFI variable",
meta_color_device_get_id (color_device));
srgb_cd_icc = cd_icc_new ();
if (!cd_icc_create_default_full (srgb_cd_icc,
CD_ICC_LOAD_FLAGS_PRIMARIES,
&error))
{
g_warning ("Failed to generate sRGB profile: %s",
error->message);
goto out;
}
calibration_cd_icc = cd_icc_new ();
if (cd_icc_load_data (calibration_cd_icc,
(uint8_t *) contents,
length,
(CD_ICC_LOAD_FLAGS_METADATA |
CD_ICC_LOAD_FLAGS_PRIMARIES),
&error))
{
GenerateProfileData *data = g_task_get_task_data (task);
const char *file_path = data->file_path;
g_autoptr (GBytes) calibration_bytes = NULL;
g_autoptr (GBytes) srgb_bytes = NULL;
CdMat3x3 csc;
srgb_bytes = cd_icc_save_data (srgb_cd_icc,
CD_ICC_SAVE_FLAGS_NONE,
&error);
if (!srgb_bytes)
{
g_warning ("Failed to save sRGB profile: %s",
error->message);
goto out;
}
calibration_bytes = g_bytes_new_take (g_steal_pointer (&contents), length);
/* Set metadata needed by colord */
cd_icc_add_metadata (calibration_cd_icc, CD_PROFILE_PROPERTY_FILENAME,
"/dev/null");
set_icc_checksum (calibration_cd_icc, calibration_bytes);
cd_icc_add_metadata (srgb_cd_icc, CD_PROFILE_PROPERTY_FILENAME,
file_path);
cd_icc_add_metadata (srgb_cd_icc, CD_PROFILE_PROPERTY_TITLE,
"Factory calibrated (sRGB)");
set_icc_checksum (srgb_cd_icc, srgb_bytes);
if (!cd_icc_utils_get_adaptation_matrix (calibration_cd_icc,
srgb_cd_icc,
&csc,
&error))
{
g_warning ("Failed to calculate adaption matrix: %s",
error->message);
goto out;
}
data->color_calibration =
meta_color_calibration_new (calibration_cd_icc, &csc);
data->cd_icc = g_steal_pointer (&srgb_cd_icc);
data->bytes = g_steal_pointer (&srgb_bytes);
save_icc_profile (file_path, g_steal_pointer (&task));
return;
}
else
{
g_warning ("Failed to parse EFI panel color ICC profile: %s",
error->message);
}
}
else
{
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
{
g_task_return_error (task, g_steal_pointer (&error));
return;
}
if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND))
g_warning ("Failed to read EFI panel color info: %s", error->message);
}
out:
create_device_profile_from_edid (color_device, g_steal_pointer (&task));
}
void
meta_set_color_efivar_test_path (const char *path)
{
efivar_test_path = path;
}
void
meta_color_device_generate_profile (MetaColorDevice *color_device,
const char *file_path,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
GTask *task;
GenerateProfileData *data;
task = g_task_new (G_OBJECT (color_device), cancellable, callback, user_data);
g_task_set_source_tag (task, meta_color_device_generate_profile);
data = g_new0 (GenerateProfileData, 1);
data->color_device = color_device;
data->file_path = g_strdup (file_path);
g_task_set_task_data (task, data,
(GDestroyNotify) generate_profile_data_free);
if ((meta_monitor_is_laptop_panel (color_device->monitor) &&
meta_monitor_supports_color_transform (color_device->monitor)) ||
efivar_test_path)
{
g_autoptr (GFile) file = NULL;
if (efivar_test_path)
file = g_file_new_for_path (efivar_test_path);
else
file = g_file_new_for_path (EFI_PANEL_COLOR_INFO_PATH);
g_file_load_contents_async (file,
cancellable,
on_efi_panel_color_info_loaded,
task);
}
else
{
create_device_profile_from_edid (color_device, task);
}
}
MetaColorProfile *
meta_color_device_generate_profile_finish (MetaColorDevice *color_device,
GAsyncResult *res,
GError **error)
{
g_assert (g_task_get_source_tag (G_TASK (res)) ==
meta_color_device_generate_profile);
return g_task_propagate_pointer (G_TASK (res), error);
}
MetaMonitor *
meta_color_device_get_monitor (MetaColorDevice *color_device)
{
return color_device->monitor;
}
MetaColorProfile *
meta_color_device_get_device_profile (MetaColorDevice *color_device)
{
return color_device->device_profile;
}
gboolean
meta_color_device_is_ready (MetaColorDevice *color_device)
{
return color_device->is_ready;
}
MetaColorProfile *
meta_color_device_get_assigned_profile (MetaColorDevice *color_device)
{
return color_device->assigned_profile;
}
void
meta_color_device_update (MetaColorDevice *color_device,
unsigned int temperature)
{
MetaColorProfile *color_profile;
MetaMonitor *monitor;
size_t lut_size;
color_profile = meta_color_device_get_assigned_profile (color_device);
if (!color_profile)
return;
monitor = color_device->monitor;
if (!meta_monitor_is_active (monitor))
return;
meta_topic (META_DEBUG_COLOR,
"Updating device '%s' (%s) using color profile '%s' "
"and temperature %uK",
meta_color_device_get_id (color_device),
meta_monitor_get_connector (monitor),
meta_color_profile_get_id (color_profile),
temperature);
if (meta_monitor_is_laptop_panel (monitor))
{
const char *brightness_profile;
brightness_profile =
meta_color_profile_get_brightness_profile (color_profile);
if (brightness_profile)
{
meta_topic (META_DEBUG_COLOR,
"Setting brightness to %s%% from brightness profile",
brightness_profile);
meta_color_manager_set_brightness (color_device->color_manager,
atoi (brightness_profile));
}
}
lut_size = meta_monitor_get_gamma_lut_size (monitor);
if (lut_size > 0)
{
g_autoptr (MetaGammaLut) lut = NULL;
lut = meta_color_profile_generate_gamma_lut (color_profile,
temperature,
lut_size);
meta_monitor_set_gamma_lut (monitor, lut);
}
g_signal_emit (color_device, signals[UPDATED], 0);
}
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