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eglnative: Use gnome-settings-daemon font settings
While the X11 backend gets its font settings from XSettings, the native backend did not use any user font preferences till now. So all shell fonts were rendered with grayscale un-hinted, which some people describe as "blurry text in Wayland sessions". Although it's somewhat confusing using the "xsettings" schema on eglnative, this is consistent with what GTK does already for its Wayland backend. It is also documented here: https://wiki.gnome.org/Initiatives/Wayland/GTK%2B#XSettings https://wiki.gnome.org/Initiatives/Wayland/gnome-settings-daemon#xsettings No more blurry shell text in Wayland sessions. https://bugzilla.gnome.org/show_bug.cgi?id=645433
This commit is contained in:
Daniel van Vugt
Marco Trevisan (Treviño)
parent
acab829cc4
commit
d358edd525
@ -48,6 +48,7 @@
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#include "clutter-private.h"
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#include "clutter-private.h"
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#include "clutter-main.h"
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#include "clutter-main.h"
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#include "clutter-stage-private.h"
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#include "clutter-stage-private.h"
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#include "clutter-settings-private.h"
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#ifdef COGL_HAS_EGL_SUPPORT
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#ifdef COGL_HAS_EGL_SUPPORT
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#include "clutter-egl.h"
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#include "clutter-egl.h"
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@ -60,6 +61,8 @@ clutter_backend_egl_native_dispose (GObject *gobject)
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{
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{
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ClutterBackendEglNative *backend_egl_native = CLUTTER_BACKEND_EGL_NATIVE (gobject);
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ClutterBackendEglNative *backend_egl_native = CLUTTER_BACKEND_EGL_NATIVE (gobject);
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g_clear_object (&backend_egl_native->xsettings);
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if (backend_egl_native->event_timer != NULL)
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if (backend_egl_native->event_timer != NULL)
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{
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{
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g_timer_destroy (backend_egl_native->event_timer);
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g_timer_destroy (backend_egl_native->event_timer);
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@ -77,9 +80,181 @@ clutter_backend_egl_native_class_init (ClutterBackendEglNativeClass *klass)
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gobject_class->dispose = clutter_backend_egl_native_dispose;
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gobject_class->dispose = clutter_backend_egl_native_dispose;
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}
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}
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typedef struct
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{
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cairo_antialias_t cairo_antialias;
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gint clutter_font_antialias;
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cairo_hint_style_t cairo_hint_style;
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const char *clutter_font_hint_style;
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cairo_subpixel_order_t cairo_subpixel_order;
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const char *clutter_font_subpixel_order;
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} FontSettings;
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static void
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get_font_gsettings (GSettings *xsettings,
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FontSettings *output)
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{
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/* org.gnome.settings-daemon.GsdFontAntialiasingMode */
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static const struct
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{
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cairo_antialias_t cairo_antialias;
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gint clutter_font_antialias;
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}
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antialiasings[] =
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{
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/* none=0 */ {CAIRO_ANTIALIAS_NONE, 0},
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/* grayscale=1 */ {CAIRO_ANTIALIAS_GRAY, 1},
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/* rgba=2 */ {CAIRO_ANTIALIAS_SUBPIXEL, 1},
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};
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/* org.gnome.settings-daemon.GsdFontHinting */
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static const struct
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{
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cairo_hint_style_t cairo_hint_style;
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const char *clutter_font_hint_style;
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}
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hintings[] =
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{
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/* none=0 */ {CAIRO_HINT_STYLE_NONE, "hintnone"},
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/* slight=1 */ {CAIRO_HINT_STYLE_SLIGHT, "hintslight"},
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/* medium=2 */ {CAIRO_HINT_STYLE_MEDIUM, "hintmedium"},
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/* full=3 */ {CAIRO_HINT_STYLE_FULL, "hintfull"},
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};
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/* org.gnome.settings-daemon.GsdFontRgbaOrder */
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static const struct
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{
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cairo_subpixel_order_t cairo_subpixel_order;
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const char *clutter_font_subpixel_order;
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}
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rgba_orders[] =
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{
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/* rgba=0 */ {CAIRO_SUBPIXEL_ORDER_RGB, "rgb"}, /* XXX what is 'rgba'? */
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/* rgb=1 */ {CAIRO_SUBPIXEL_ORDER_RGB, "rgb"},
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/* bgr=2 */ {CAIRO_SUBPIXEL_ORDER_BGR, "bgr"},
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/* vrgb=3 */ {CAIRO_SUBPIXEL_ORDER_VRGB, "vrgb"},
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/* vbgr=4 */ {CAIRO_SUBPIXEL_ORDER_VBGR, "vbgr"},
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};
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guint i;
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i = g_settings_get_enum (xsettings, "hinting");
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if (i < G_N_ELEMENTS (hintings))
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{
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output->cairo_hint_style = hintings[i].cairo_hint_style;
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output->clutter_font_hint_style = hintings[i].clutter_font_hint_style;
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}
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else
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{
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output->cairo_hint_style = CAIRO_HINT_STYLE_DEFAULT;
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output->clutter_font_hint_style = NULL;
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}
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i = g_settings_get_enum (xsettings, "antialiasing");
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if (i < G_N_ELEMENTS (antialiasings))
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{
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output->cairo_antialias = antialiasings[i].cairo_antialias;
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output->clutter_font_antialias = antialiasings[i].clutter_font_antialias;
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}
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else
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{
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output->cairo_antialias = CAIRO_ANTIALIAS_DEFAULT;
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output->clutter_font_antialias = -1;
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}
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i = g_settings_get_enum (xsettings, "rgba-order");
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if (i < G_N_ELEMENTS (rgba_orders))
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{
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output->cairo_subpixel_order = rgba_orders[i].cairo_subpixel_order;
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output->clutter_font_subpixel_order = rgba_orders[i].clutter_font_subpixel_order;
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}
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else
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{
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output->cairo_subpixel_order = CAIRO_SUBPIXEL_ORDER_DEFAULT;
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output->clutter_font_subpixel_order = NULL;
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}
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if (output->cairo_antialias == CAIRO_ANTIALIAS_GRAY)
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output->clutter_font_subpixel_order = "none";
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}
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static void
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init_font_options (ClutterBackendEglNative *backend_egl_native)
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{
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GSettings *xsettings = backend_egl_native->xsettings;
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cairo_font_options_t *options = cairo_font_options_create ();
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FontSettings fs;
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get_font_gsettings (xsettings, &fs);
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cairo_font_options_set_hint_style (options, fs.cairo_hint_style);
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cairo_font_options_set_antialias (options, fs.cairo_antialias);
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cairo_font_options_set_subpixel_order (options, fs.cairo_subpixel_order);
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clutter_backend_set_font_options (CLUTTER_BACKEND (backend_egl_native),
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options);
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cairo_font_options_destroy (options);
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}
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static gboolean
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on_xsettings_change_event (GSettings *xsettings,
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gpointer keys,
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gint n_keys,
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gpointer user_data)
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{
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/*
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* A simpler alternative to this function that does not update the screen
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* immediately (like macOS :P):
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*
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* init_font_options (CLUTTER_BACKEND_EGL_NATIVE (user_data));
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*
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* which has the added benefit of eliminating the need for all the
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* FontSettings.clutter_ fields. However the below approach is better for
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* testing settings and more consistent with the existing x11 backend...
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*/
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ClutterSettings *csettings = clutter_settings_get_default ();
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FontSettings fs;
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gint hinting;
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get_font_gsettings (xsettings, &fs);
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hinting = fs.cairo_hint_style == CAIRO_HINT_STYLE_NONE ? 0 : 1;
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g_object_set (csettings,
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"font-hinting", hinting,
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"font-hint-style", fs.clutter_font_hint_style,
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"font-antialias", fs.clutter_font_antialias,
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"font-subpixel-order", fs.clutter_font_subpixel_order,
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NULL);
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return FALSE;
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}
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static void
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static void
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clutter_backend_egl_native_init (ClutterBackendEglNative *backend_egl_native)
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clutter_backend_egl_native_init (ClutterBackendEglNative *backend_egl_native)
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{
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{
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static const gchar xsettings_path[] = "org.gnome.settings-daemon.plugins.xsettings";
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GSettingsSchemaSource *source = g_settings_schema_source_get_default ();
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GSettingsSchema *schema = g_settings_schema_source_lookup (source,
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xsettings_path,
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FALSE);
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if (!schema)
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{
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g_warning ("Failed to find schema: %s", xsettings_path);
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}
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else
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{
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backend_egl_native->xsettings = g_settings_new_full (schema, NULL, NULL);
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if (backend_egl_native->xsettings)
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{
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init_font_options (backend_egl_native);
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g_signal_connect (backend_egl_native->xsettings, "change-event",
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G_CALLBACK (on_xsettings_change_event),
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backend_egl_native);
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}
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}
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backend_egl_native->event_timer = g_timer_new ();
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backend_egl_native->event_timer = g_timer_new ();
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}
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}
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@ -61,6 +61,9 @@ struct _ClutterBackendEglNative
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/* event timer */
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/* event timer */
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GTimer *event_timer;
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GTimer *event_timer;
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/* "xsettings" is still the defacto place for Xft settings, even in Wayland */
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GSettings *xsettings;
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};
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};
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struct _ClutterBackendEglNativeClass
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struct _ClutterBackendEglNativeClass
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