// Get the display ICC profile of the monitor associated with the widget.
// For X display, uses the ICC profile specifications version 0.2 from
// http://burtonini.com/blog/computers/xicc
// Based on code from Gimp's modules/cdisplay_lcms.c
void dt_ctl_set_display_profile()
{
if(!dt_control_running()) return;
// make sure that no one gets a broken profile
// FIXME: benchmark if the try is really needed when moving/resizing the window. Maybe we can just lock it and block
if(pthread_rwlock_trywrlock(&darktable.control->xprofile_lock))
return; // we are already updating the profile. Or someone is reading right now. Too bad we can't distinguish that. Whatever ...
GtkWidget *widget = dt_ui_center(darktable.gui->ui);
guint8 *buffer = NULL;
gint buffer_size = 0;
gchar *profile_source = NULL;
#if defined GDK_WINDOWING_X11
// we will use the xatom no matter what configured when compiled without colord
gboolean use_xatom = TRUE;
#if defined USE_COLORDGTK
gboolean use_colord = TRUE;
gchar *display_profile_source = dt_conf_get_string("ui_last/display_profile_source");
if(display_profile_source)
{
if(!strcmp(display_profile_source, "xatom"))
use_colord = FALSE;
else if(!strcmp(display_profile_source, "colord"))
use_xatom = FALSE;
g_free(display_profile_source);
}
#endif
/* let's have a look at the xatom, just in case ... */
if(use_xatom)
{
GdkScreen *screen = gtk_widget_get_screen(widget);
if ( screen==NULL )
screen = gdk_screen_get_default();
int monitor = gdk_screen_get_monitor_at_window (screen, gtk_widget_get_window(widget));
char *atom_name;
if (monitor > 0)
atom_name = g_strdup_printf("_ICC_PROFILE_%d", monitor);
else
atom_name = g_strdup("_ICC_PROFILE");
profile_source = g_strdup_printf("xatom %s", atom_name);
GdkAtom type = GDK_NONE;
gint format = 0;
gdk_property_get(gdk_screen_get_root_window(screen),
gdk_atom_intern(atom_name, FALSE), GDK_NONE,
0, 64 * 1024 * 1024, FALSE,
&type, &format, &buffer_size, &buffer);
g_free(atom_name);
}
#ifdef USE_COLORDGTK
/* also try to get the profile from colord. this will set the value asynchronously! */
if(use_colord)
{
CdWindow *window = cd_window_new();
GtkWidget *center_widget = dt_ui_center(darktable.gui->ui);
cd_window_get_profile(window, center_widget, NULL, dt_ctl_get_display_profile_colord_callback, NULL);
}
#endif
#elif defined GDK_WINDOWING_QUARTZ
GdkScreen *screen = gtk_widget_get_screen(widget);
if ( screen==NULL )
screen = gdk_screen_get_default();
int monitor = gdk_screen_get_monitor_at_window(screen, gtk_widget_get_window(widget));
CGDirectDisplayID ids[monitor + 1];
uint32_t total_ids;
CMProfileRef prof = NULL;
if(CGGetOnlineDisplayList(monitor + 1, &ids[0], &total_ids) == kCGErrorSuccess && total_ids == monitor + 1)
CMGetProfileByAVID(ids[monitor], &prof);
if ( prof!=NULL )
{
CFDataRef data;
data = CMProfileCopyICCData(NULL, prof);
CMCloseProfile(prof);
UInt8 *tmp_buffer = (UInt8 *) g_malloc(CFDataGetLength(data));
CFDataGetBytes(data, CFRangeMake(0, CFDataGetLength(data)), tmp_buffer);
buffer = (guint8 *) tmp_buffer;
buffer_size = CFDataGetLength(data);
CFRelease(data);
}
profile_source = g_strdup("osx color profile api");
#elif defined G_OS_WIN32
(void)widget;
HDC hdc = GetDC (NULL);
if ( hdc!=NULL )
{
DWORD len = 0;
GetICMProfile (hdc, &len, NULL);
gchar *path = g_new (gchar, len);
if (GetICMProfile (hdc, &len, path))
{
gsize size;
g_file_get_contents(path, (gchar**)&buffer, &size, NULL);
buffer_size = size;
}
g_free (path);
ReleaseDC (NULL, hdc);
}
profile_source = g_strdup("windows color profile api");
#endif
int profile_changed = buffer_size > 0 &&
(darktable.control->xprofile_size != buffer_size || memcmp(darktable.control->xprofile_data, buffer, buffer_size) != 0);
if(profile_changed)
{
cmsHPROFILE profile = NULL;
char name[512];
// thanks to ufraw for this!
g_free(darktable.control->xprofile_data);
darktable.control->xprofile_data = buffer;
darktable.control->xprofile_size = buffer_size;
profile = cmsOpenProfileFromMem(buffer, buffer_size);
if(profile)
{
dt_colorspaces_get_profile_name(profile, "en", "US", name, sizeof(name));
cmsCloseProfile(profile);
}
dt_print(DT_DEBUG_CONTROL, "[color profile] we got a new screen profile `%s' from the %s (size: %d)\n", *name?name:"(unknown)", profile_source, buffer_size);
}
pthread_rwlock_unlock(&darktable.control->xprofile_lock);
if(profile_changed)
dt_control_signal_raise(darktable.signals, DT_SIGNAL_CONTROL_PROFILE_CHANGED);
g_free(profile_source);
}
GimpColorProfile *
gimp_widget_get_color_profile (GtkWidget *widget)
{
GimpColorProfile *profile = NULL;
GdkScreen *screen;
gint monitor;
g_return_val_if_fail (widget == NULL || GTK_IS_WIDGET (widget), NULL);
if (widget)
{
screen = gtk_widget_get_screen (widget);
monitor = gimp_widget_get_monitor (widget);
}
else
{
screen = gdk_screen_get_default ();
monitor = 0;
}
#if defined GDK_WINDOWING_X11
{
GdkAtom type = GDK_NONE;
gint format = 0;
gint nitems = 0;
gchar *atom_name;
guchar *data = NULL;
if (monitor > 0)
atom_name = g_strdup_printf ("_ICC_PROFILE_%d", monitor);
else
atom_name = g_strdup ("_ICC_PROFILE");
if (gdk_property_get (gdk_screen_get_root_window (screen),
gdk_atom_intern (atom_name, FALSE),
GDK_NONE,
0, 64 * 1024 * 1024, FALSE,
&type, &format, &nitems, &data) && nitems > 0)
{
profile = gimp_color_profile_new_from_icc_profile (data, nitems,
NULL);
g_free (data);
}
g_free (atom_name);
}
#elif defined GDK_WINDOWING_QUARTZ
{
CMProfileRef prof = NULL;
CMGetProfileByAVID (monitor, &prof);
if (prof)
{
CFDataRef data;
data = CMProfileCopyICCData (NULL, prof);
CMCloseProfile (prof);
if (data)
{
UInt8 *buffer = g_malloc (CFDataGetLength (data));
/* We cannot use CFDataGetBytesPtr(), because that returns
* a const pointer where cmsOpenProfileFromMem wants a
* non-const pointer.
*/
CFDataGetBytes (data, CFRangeMake (0, CFDataGetLength (data)),
buffer);
profile = gimp_color_profile_new_from_icc_profile (data,
CFDataGetLength (data),
NULL);
g_free (buffer);
CFRelease (data);
}
}
}
#elif defined G_OS_WIN32
{
HDC hdc = GetDC (NULL);
if (hdc)
{
gchar *path;
gint32 len = 0;
GetICMProfile (hdc, &len, NULL);
path = g_new (gchar, len);
if (GetICMProfile (hdc, &len, path))
{
GFile *file = g_file_new_for_path (path);
profile = gimp_color_profile_new_from_file (file, NULL);
g_object_unref (file);
}
g_free (path);
ReleaseDC (NULL, hdc);
}
}
#endif
return profile;
}
static cmsHPROFILE
cdisplay_lcms_get_display_profile (CdisplayLcms *lcms)
{
GimpColorConfig *config;
cmsHPROFILE profile = NULL;
config = gimp_color_display_get_config (GIMP_COLOR_DISPLAY (lcms));
#if defined GDK_WINDOWING_X11
if (config->display_profile_from_gdk)
{
GdkScreen *screen;
GdkAtom type = GDK_NONE;
gint format = 0;
gint nitems = 0;
gint monitor = 0;
gchar *atom_name;
guchar *data = NULL;
screen = cdisplay_lcms_get_screen (lcms, &monitor);
if (monitor > 0)
atom_name = g_strdup_printf ("_ICC_PROFILE_%d", monitor);
else
atom_name = g_strdup ("_ICC_PROFILE");
if (gdk_property_get (gdk_screen_get_root_window (screen),
gdk_atom_intern (atom_name, FALSE),
GDK_NONE,
0, 64 * 1024 * 1024, FALSE,
&type, &format, &nitems, &data) && nitems > 0)
{
profile = cmsOpenProfileFromMem (data, nitems);
g_free (data);
}
g_free (atom_name);
}
#elif defined GDK_WINDOWING_QUARTZ
if (config->display_profile_from_gdk)
{
CMProfileRef prof = NULL;
gint monitor = 0;
cdisplay_lcms_get_screen (lcms, &monitor);
CMGetProfileByAVID (monitor, &prof);
if (prof)
{
CFDataRef data;
data = CMProfileCopyICCData (NULL, prof);
CMCloseProfile (prof);
if (data)
{
UInt8 *buffer = g_malloc (CFDataGetLength (data));
/* We cannot use CFDataGetBytesPtr(), because that returns
* a const pointer where cmsOpenProfileFromMem wants a
* non-const pointer.
*/
CFDataGetBytes (data, CFRangeMake (0, CFDataGetLength (data)),
buffer);
profile = cmsOpenProfileFromMem (buffer, CFDataGetLength (data));
g_free (buffer);
CFRelease (data);
}
}
}
#elif defined G_OS_WIN32
if (config->display_profile_from_gdk)
{
HDC hdc = GetDC (NULL);
if (hdc)
{
gchar *path;
gint32 len = 0;
GetICMProfile (hdc, &len, NULL);
path = g_new (gchar, len);
if (GetICMProfile (hdc, &len, path))
profile = cmsOpenProfileFromFile (path, "r");
g_free (path);
ReleaseDC (NULL, hdc);
}
}
#endif
if (! profile && config->display_profile)
profile = cmsOpenProfileFromFile (config->display_profile, "r");
return profile;
}
