listitemwidget: Update some accessible state

Pass the selected state on to a11y. Fixes: #6663
listview: Fix some oversights
2024-04-26 11:50:30 -04:00 · 2024-04-26 11:19:59 -04:00 · 2024-04-25 20:46:31 +00:00 · 2024-04-25 22:46:35 +03:00 · 2024-04-25 03:01:44 +00:00 · 2024-04-24 22:01:56 -04:00
308 changed files with 5360 additions and 4222 deletions
@@ -445,9 +445,8 @@ reference:
            --force-fallback-for=gdk-pixbuf,pango
            -Dintrospection=enabled
            -Ddocumentation=true
-            -Dgtk_doc=true
            -Dgdk-pixbuf:gtk_doc=true
-            -Dpango:gtk_doc=true
+            -Dpango:documentation=true
            -Dbuild-demos=false
            -Dbuild-examples=false
            -Dbuild-tests=false
@@ -24,7 +24,7 @@ flatpak build ${builddir} meson \
                -Dbuild-examples=false \
                -Dintrospection=disabled \
                -Dbuild-demos=true \
-                -Ddemo-profile=devel \
+                -Dprofile=devel \
                _flatpak_build

 flatpak build --env=CI_COMMIT_SHORT_SHA=$CI_COMMIT_SHORT_SHA ${builddir} ninja -C _flatpak_build install
@@ -1,69 +1,109 @@
-Overview of Changes in 4.14.4, 02-05-2024
+Overview of Changes in 4.15.1, xx-xx-xxxx
 =========================================

-* GtkGraphicsOffload:
- - Don't crash without a child
-
-* Icontheme:
- - Make symbolic svg loading more efficient
- - Handle color-free symbolics more efficiently
-
-* Accessibility:
- - Make the gtk-demo sidebar search more accessible
- - Stop emitting focus events
-
-* GDK:
- - Support XDG_ACTIVATION_TOKEN
- - dmabuf: Be more defensive when importing unknown formats to G
- - dmabuf: Use narrow range for YUV
-
-* GSK:
- - gpu: Handle  tiny offscreens correctl
-
-* Build:
- - Fix many ubsan warning
-
-* macOS
- - Fix problems with events handed back to the OS
- - Respect GDK_DEBUG=default-settings
-
-* Translation updates:
- German
- Indonesian
- Kabyle
- Korean
- Lithuanian
- Russian
-
-
-Overview of Changes in 4.14.3, 18-04-2024
+Overview of Changes in 4.15.0, 21-04-2024
 =========================================

+This release changes the default GSK renderer to be Vulkan, on
+Wayland. Other platforms still use ngl.
+
+The intent of this change is to get wider testing and verify that
+Vulkan drivers are good enough for us to rely on. If significant
+problems show up, we will revert this change for 4.16.
+
+You can still override the renderer choice using the GSK_RENDERER
+environment variable.
+
+---
+
+This release also changes font rendering settings by introducing
+a new high-level gtk-font-rendering settings which gives GTK more
+freedom to decide on font rendering.
+
+You can still use the low-level font-related settings by changing
+the new property to 'manual'.
+
+---
+
+* GtkColumnView:
+ - Fix infinite loops in dispose
+ - Fix problems with weak ref cycles in GtkExpression
+
+* GtkListView:
 * GtkShortcutManager:
 - Track the propagation phase of added controllers

+* GtkGLArea:
+ - Produce dmabuf textures, so graphics offload is possible
+
+* GtkTextView:
+ - Support text shadows
+
+* GtkGraphicsOffload:
+ - Add a black-background property
+
+* Settings:
+ - Add a new gtk-font-rendering setting
+
 * Accessibility:
+ - Add support for GetRangeExtents to GtkAccessibleText
+ - Add support for GetOffsetAtPoint to GtkAccessibleText
 - Implement GtkAccessibleRange for scrollbars

+* GDK:
+ - Add a callback-based cursor API
+
+* GSK:
+-  Use the Vulkan renderer by default
+ - Avoid an infinite recursion with offscreens in some cases
+ - Optimize graphics offload to make it more likely that compositors
+   can use direct scanout
+
 * X11:
 - Fix some confusing debug messages
 - Drop a no-longer-relevant optimization that was interfering with
   getting the current window manager capabilities

+* macOS:
+ - Implement the color picker for macOS 10.15+
+
+* Debugging:
+ - Snow monitor resolution in the inspector
+
+* Demos:
+ - Use graphics offload in the shadertoy demo
+ - Show more reliable fps numbers in the fishbowl demo
+
 * Tools:
 - Support generating pdf in gtk4-rendernode-tool

+* Build:
+ - Require pango 1.52
+ - Require cairo 1.18
+ - Add a missing dependency that was causing build failures
+ - Drop deprecated build options:
+   gtk_doc -> documentation
+   update_screenshots -> screenshots
+   demo-profile -> profile
+   demos -> build-demos
+
+* Deprecations:
+ - gdk_widget_set/get_font_options
+ - gdk_wayland/x11_display_set_cursor_theme
+
 * Translation updates:
 Basque
 Brazilian Portuguese
- Georgian
+ British English
+ Chinese (China)
 Hebrew
 Kabyle
 Persian
 Polish
+ Russian
 Slovenian
 Swedish
- Ukrainian
+ Turkish


 Overview of Changes in 4.14.2, 03-04-2024
@@ -186,7 +186,7 @@
            "config-opts" : [
                "--libdir=/app/lib",
                "-Dbuildtype=debugoptimized",
-                "-Ddemo-profile=devel"
+                "-Dprofile=devel"
            ],
            "sources" : [
                {
@@ -115,7 +115,7 @@
            "config-opts" : [
                "--libdir=/app/lib",
                "-Dbuildtype=debugoptimized",
-                "-Ddemo-profile=devel"
+                "-Dprofile=devel"
            ],
            "sources" : [
                {
@@ -115,7 +115,7 @@
            "config-opts" : [
                "--libdir=/app/lib",
                "-Dbuildtype=debugoptimized",
-                "-Ddemo-profile=devel"
+                "-Dprofile=devel"
            ],
            "sources" : [
                {
@@ -115,7 +115,7 @@
            "config-opts" : [
                "--libdir=/app/lib",
                "-Dbuildtype=debugoptimized",
-                "-Ddemo-profile=devel"
+                "-Dprofile=devel"
            ],
            "sources" : [
                {
@@ -15,12 +15,54 @@ on_destroy (gpointer data)
  window = NULL;
 }

+static GdkTexture *
+cursor_callback (GdkCursor *cursor,
+                 int        cursor_size,
+                 double     scale,
+                 int       *width,
+                 int       *height,
+                 int       *hotspot_x,
+                 int       *hotspot_y,
+                 gpointer   data)
+{
+  GdkPixbuf *pixbuf;
+  GdkTexture *texture;
+  GError *error = NULL;
+  int scaled_size;
+
+  scaled_size = ceil (cursor_size * scale);
+
+  pixbuf = gdk_pixbuf_new_from_resource_at_scale ("/cursors/images/gtk-logo.svg",
+                                                  scaled_size, scaled_size,
+                                                  TRUE,
+                                                  &error);
+  if (!pixbuf)
+    {
+      g_print ("%s\n", error->message);
+      g_error_free (error);
+      return NULL;
+    }
+
+  texture = gdk_texture_new_for_pixbuf (pixbuf);
+
+  g_object_unref (pixbuf);
+
+  *width = cursor_size;
+  *height = cursor_size;
+  *hotspot_x = 18 * cursor_size / 32.0;
+  *hotspot_y = 2 * cursor_size / 32.0;
+
+  return texture;
+}
+
 GtkWidget *
 do_cursors (GtkWidget *do_widget)
 {
  if (!window)
    {
      GtkBuilder *builder;
+      GtkWidget *logo_callback;
+      GdkCursor *cursor;

      builder = gtk_builder_new_from_resource ("/cursors/cursors.ui");
      window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
@@ -29,6 +71,10 @@ do_cursors (GtkWidget *do_widget)
                              gtk_widget_get_display (do_widget));
      g_signal_connect (window, "destroy",
                        G_CALLBACK (on_destroy), NULL);
+      logo_callback = GTK_WIDGET (gtk_builder_get_object (builder, "logo_callback"));
+      cursor = gdk_cursor_new_from_callback (cursor_callback, NULL, NULL, NULL);
+      gtk_widget_set_cursor (logo_callback, cursor);
+      g_object_unref (cursor);
      g_object_unref (builder);
    }

@@ -116,6 +116,7 @@
    <file>w_resize_cursor.png</file>
    <file>zoom_in_cursor.png</file>
    <file>zoom_out_cursor.png</file>
+    <file>gtk-logo.svg</file>
  </gresource>
  <gresource prefix="/dnd">
    <file>dnd.css</file>
@@ -0,0 +1,138 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="128"
+   height="128"
+   id="svg6843"
+   sodipodi:version="0.32"
+   inkscape:version="0.92.4 5da689c313, 2019-01-14"
+   version="1.0"
+   sodipodi:docname="gtk-logo.svg"
+   inkscape:output_extension="org.inkscape.output.svg.inkscape"
+   inkscape:export-filename="/home/ebassi/Pictures/gtk-logo-256.png"
+   inkscape:export-xdpi="192"
+   inkscape:export-ydpi="192">
+  <defs
+     id="defs6845">
+    <inkscape:perspective
+       sodipodi:type="inkscape:persp3d"
+       inkscape:vp_x="-50 : 600 : 1"
+       inkscape:vp_y="0 : 1000 : 0"
+       inkscape:vp_z="700 : 600 : 1"
+       inkscape:persp3d-origin="300 : 400 : 1"
+       id="perspective13" />
+  </defs>
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="2.8284271"
+     inkscape:cx="69.874353"
+     inkscape:cy="64.313526"
+     inkscape:current-layer="layer1"
+     showgrid="false"
+     inkscape:document-units="px"
+     inkscape:grid-bbox="true"
+     width="128px"
+     height="128px"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:window-width="1920"
+     inkscape:window-height="1016"
+     inkscape:window-x="0"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1">
+    <inkscape:grid
+       type="xygrid"
+       id="grid7947" />
+  </sodipodi:namedview>
+  <metadata
+     id="metadata6848">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+        <dc:date />
+        <dc:creator>
+          <cc:Agent>
+            <dc:title />
+          </cc:Agent>
+        </dc:creator>
+        <dc:rights>
+          <cc:Agent>
+            <dc:title />
+          </cc:Agent>
+        </dc:rights>
+        <dc:publisher>
+          <cc:Agent>
+            <dc:title />
+          </cc:Agent>
+        </dc:publisher>
+        <dc:identifier />
+        <dc:source />
+        <dc:relation />
+        <dc:language />
+        <dc:subject>
+          <rdf:Bag />
+        </dc:subject>
+        <dc:coverage />
+        <dc:description />
+        <dc:contributor>
+          <cc:Agent>
+            <dc:title />
+          </cc:Agent>
+        </dc:contributor>
+        <cc:license
+           rdf:resource="" />
+      </cc:Work>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     id="layer1"
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer">
+    <path
+       sodipodi:nodetypes="ccccc"
+       id="path6976"
+       d="M 20.88413,30.82696 L 53.816977,55.527708 L 107.33282,39.060543 L 70.587303,17.177763 L 20.88413,30.82696 z"
+       style="fill:#729fcf;fill-opacity:1;fill-rule:evenodd;stroke:#ffffff;stroke-width:2.12364459;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1;display:inline" />
+    <path
+       id="path6978"
+       d="M 22.94243,82.287118 L 20.88413,30.82696 L 53.816977,55.527708 L 53.816977,111.10486 L 22.94243,82.287118 z"
+       style="fill:#e40000;fill-opacity:1;fill-rule:evenodd;stroke:#ffffff;stroke-width:2.12364459;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1;display:inline" />
+    <path
+       id="path6980"
+       d="M 53.816977,111.10486 L 103.21619,90.5207 L 107.33282,39.060543 L 53.816977,55.527708 L 53.816977,111.10486 z"
+       style="fill:#7fe719;fill-opacity:1;fill-rule:evenodd;stroke:#ffffff;stroke-width:2.12364459;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1;display:inline" />
+    <path
+       sodipodi:nodetypes="ccc"
+       id="path6982"
+       d="M 23.216626,81.319479 L 70.48573,67.361442 L 103.38422,90.444516"
+       style="opacity:1;fill:none;fill-rule:evenodd;stroke:#ffffff;stroke-width:1.25;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
+    <path
+       sodipodi:nodetypes="cc"
+       id="path6984"
+       d="M 70.434539,17.875593 L 70.434539,66.984877"
+       style="opacity:1;fill:#babdb6;fill-rule:evenodd;stroke:#ffffff;stroke-width:1.25;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
+  </g>
+</svg>
@@ -20,7 +20,6 @@
 #include "config.h"
 #include <gtk/gtk.h>
 #include <glib/gstdio.h>
-#include <glib/gi18n.h>

 #include "demos.h"
 #include "fontify.h"
@@ -924,34 +923,6 @@ clear_search (GtkSearchBar *bar)
    }
 }

-static void
-search_results_update (GObject    *filter_model,
-                       GParamSpec *pspec,
-                       GtkEntry   *entry)
-{
-  gsize n_items = g_list_model_get_n_items (G_LIST_MODEL (filter_model));
-
-  if (strlen (gtk_editable_get_text (GTK_EDITABLE (entry))) > 0)
-    {
-      char *text;
-
-      if (n_items > 0)
-        text = g_strdup_printf (ngettext ("%ld search result", "%ld search results", n_items), n_items);
-      else
-        text = g_strdup (_("No search results"));
-
-      gtk_accessible_update_property (GTK_ACCESSIBLE (entry),
-                                      GTK_ACCESSIBLE_PROPERTY_DESCRIPTION, text,
-                                      -1);
-
-      g_free (text);
-    }
-  else
-    {
-      gtk_accessible_reset_property (GTK_ACCESSIBLE (entry), GTK_ACCESSIBLE_PROPERTY_DESCRIPTION);
-    }
-}
-
 static void
 activate (GApplication *app)
 {
@@ -999,7 +970,6 @@ activate (GApplication *app)

  search_entry = GTK_WIDGET (gtk_builder_get_object (builder, "search-entry"));
  g_signal_connect (search_entry, "search-changed", G_CALLBACK (demo_search_changed_cb), filter);
-  g_signal_connect (filter_model, "notify::n-items", G_CALLBACK (search_results_update), search_entry);

  selection = gtk_single_selection_new (G_LIST_MODEL (filter_model));
  g_signal_connect (selection, "notify::selected-item", G_CALLBACK (selection_cb), NULL);
@@ -120,7 +120,7 @@ create_shadertoy_window (GtkWidget *do_widget)
  gtk_box_append (GTK_BOX (box), aspect);

  shadertoy = new_shadertoy ("/shadertoy/alienplanet.glsl");
-  gtk_aspect_frame_set_child (GTK_ASPECT_FRAME (aspect), shadertoy);
+  gtk_aspect_frame_set_child (GTK_ASPECT_FRAME (aspect), gtk_graphics_offload_new (shadertoy));

  sw = gtk_scrolled_window_new ();
  gtk_scrolled_window_set_min_content_height (GTK_SCROLLED_WINDOW (sw), 250);
@@ -5,11 +5,8 @@ Title: Cairo interaction
 [Cairo](http://cairographics.org) is a graphics library that supports vector
 graphics and image compositing that can be used with GTK.

-GDK does not wrap the Cairo API and it is not possible to use cairo directly
-to draw on a [class@Gdk.Surface]. You can either use a
-[GtkDrawingArea](../gtk4/class.DrawingArea.html) widget or
-[gtk_snapshot_append_cairo](../gtk4/func.Snapshot.append_cairo.html)
-for drawing with cairo in a GTK4 application.
+GDK does not wrap the Cairo API; instead it allows to create Cairo
+drawing contexts which can be used to draw on [class@Gdk.Surface]s.

 Additional functions allow use [struct@Gdk.Rectangle]s with Cairo
 and to use [struct@Gdk.RGBA], `GdkPixbuf`, and [class@Gdk.Surface]
@@ -74,6 +74,7 @@ in a selector, widget names must be prefixed with a &num; character.
 | E:not(selector) | [CSS Selector Level 3](https://www.w3.org/TR/css3-selectors/#negation) | |
 | E:dir(ltr), E:dir(rtl) | [CSS Selector Level 4](https://drafts.csswg.org/selectors/#the-dir-pseudo) | |
 | E:drop(active) | [CSS Selector Level 4](https://drafts.csswg.org/selectors/#drag-pseudos) | |
+| E:root | [CSS Selector Level 3](https://www.w3.org/TR/selectors-3/#root-pseudo) | |
 | E F | [CSS Selector Level 3](https://www.w3.org/TR/css3-selectors/#descendent-combinators) | |
 | E > F | [CSS Selector Level 3](https://www.w3.org/TR/css3-selectors/#child-combinators) | |
 | E ~ F | [CSS Selector Level 3](https://www.w3.org/TR/css3-selectors/#general-sibling-combinators) | |
@@ -8,6 +8,10 @@ gtk4-broadwayd
 The Broadway display server
 ---------------------------

+:Version: GTK
+:Manual section: 1
+:Manual group: GTK commands
+
 SYNOPSIS
 --------
 |   **gtk4-broadwayd** [OPTIONS...] <DISPLAY>
@@ -8,6 +8,10 @@ gtk4-builder-tool
 GtkBuilder File Utility
 -----------------------

+:Version: GTK
+:Manual section: 1
+:Manual group: GTK commands
+
 SYNOPSIS
 --------
 |   **gtk4-builder-tool** <COMMAND> [OPTIONS...] <FILE>
@@ -8,6 +8,9 @@ gtk4-demo-application
 Demonstrate GtkApplication
 --------------------------

+:Version: GTK
+:Manual section: 1
+:Manual group: GTK commands

 SYNOPSIS
 --------
@@ -8,6 +8,10 @@ gtk4-demo
 Demonstrate GTK widgets
 -----------------------

+:Version: GTK
+:Manual section: 1
+:Manual group: GTK commands
+
 SYNOPSIS
 --------

@@ -8,6 +8,10 @@ gtk4-encode-symbolic-svg
 Symbolic icon conversion utility
 --------------------------------

+:Version: GTK
+:Manual section: 1
+:Manual group: GTK commands
+
 SYNOPSIS
 --------

@@ -8,6 +8,10 @@ gtk4-icon-browser
 List themed icons
 -----------------

+:Version: GTK
+:Manual section: 1
+:Manual group: GTK commands
+
 SYNOPSIS
 --------

@@ -8,6 +8,10 @@ gtk4-launch
 Launch an application
 ---------------------

+:Version: GTK
+:Manual section: 1
+:Manual group: GTK commands
+
 SYNOPSIS
 --------

@@ -8,6 +8,10 @@ gtk4-node-editor
 Editor render nodes
 -----------------

+:Version: GTK
+:Manual section: 1
+:Manual group: GTK commands
+
 SYNOPSIS
 --------

@@ -8,6 +8,10 @@ gtk4-path-tool
 GskPath Utility
 -----------------------

+:Version: GTK
+:Manual section: 1
+:Manual group: GTK commands
+
 SYNOPSIS
 --------
 |   **gtk4-path-tool** <COMMAND> [OPTIONS...] <PATH>
@@ -8,6 +8,10 @@ gtk4-query-settings
 Print name and value of GTK settings
 ------------------------------------

+:Version: GTK
+:Manual section: 1
+:Manual group: GTK commands
+
 SYNOPSIS
 --------

@@ -8,6 +8,10 @@ gtk4-rendernode-tool
 GskRenderNode Utility
 -----------------------

+:Version: GTK
+:Manual section: 1
+:Manual group: GTK commands
+
 SYNOPSIS
 --------
 |   **gtk4-rendernode-tool** <COMMAND> [OPTIONS...] <FILE>
@@ -45,13 +49,14 @@ without any titlebar.
 Rendering
 ^^^^^^^^^

-The ``render`` command saves a rendering of the rendernode as a png or tiff image.
-The name of the file to write can be specified as a second FILE argument.
+The ``render`` command saves a rendering of the rendernode as a png, tiff or svg
+image or as pdf document. The name of the file to write can be specified as a second
+FILE argument.

 ``--renderer=RENDERER``

  Use the given renderer. Use ``--renderer=help`` to get a information
-  about poassible values for the ``RENDERER``.
+  about possible values for the ``RENDERER``.

 Benchmark
 ^^^^^^^^^
@@ -93,4 +98,4 @@ exit code is 1. If the images are identical, it is 0.

 ``--quiet``

-  Don't write results to stdout.`
+  Don't write results to stdout.
@@ -8,6 +8,10 @@ gtk4-update-icon-cache
 Icon theme caching utility
 --------------------------

+:Version: GTK
+:Manual section: 1
+:Manual group: GTK commands
+
 SYNOPSIS
 --------

@@ -8,6 +8,10 @@ gtk4-widget-factory
 Showcase GTK widgets and styles
 -------------------------------

+:Version: GTK
+:Manual section: 1
+:Manual group: GTK commands
+
 SYNOPSIS
 --------

@@ -80,7 +80,7 @@ if get_option('man-pages') and rst2man.found()
    [ 'gtk4-path-tool', '1', ],
  ]

-  if get_option('demos')
+  if get_option('build-demos')
    rst_files += [
      [ 'gtk4-demo', '1', ],
      [ 'gtk4-demo-application', '1', ],
@@ -217,6 +217,10 @@ A number of options affect behavior instead of logging:
 `no-portals`
 : Disable use of [portals](https://docs.flatpak.org/en/latest/portals.html)

+`force-offload`
+: Force graphics offload for all textures, even when slower. This allows
+  to debug offloading in the absence of dmabufs.
+
 `gl-disable`
 : Disable OpenGL support

@@ -91,6 +91,31 @@ const GDK_META_MASK     = 1 << 28;

 var useDataUrls = window.location.search.includes("datauri");

+/* check if we are on Android and using Chrome */
+var isAndroidChrome = false;
+{
+    var ua = navigator.userAgent.toLowerCase();
+    if (ua.indexOf("android") > -1 && ua.indexOf("chrom") > -1) {
+	isAndroidChrome = true;
+    }
+}
+/* check for the passive option for Event listener */
+let passiveSupported = false;
+try {
+    const options = {
+	get passive() { // This function will be called when the browser
+            //   attempts to access the passive property.
+	    passiveSupported = true;
+	    return false;
+	}
+    };
+
+    window.addEventListener("test", null, options);
+    window.removeEventListener("test", null, options);
+} catch(err) {
+    passiveSupported = false;
+}
+
 /* This base64code is based on https://github.com/beatgammit/base64-js/blob/master/index.js which is MIT licensed */

 var b64_lookup = [];
@@ -215,11 +240,32 @@ function logStackTrace(len) {
        log(callstack[i]);
 }

+/* Helper functions for touch identifier to make it unique on Android */
+var globalTouchIdentifier = Math.round(Date.now() / 1000);
+function touchIdentifierStart(tId)
+{
+    if (isAndroidChrome) {
+	if (tId == 0) {
+	    return ++globalTouchIdentifier;
+	}
+	return globalTouchIdentifier + tId;
+    }
+    return tId;
+}
+function touchIdentifier(tId)
+{
+    if (isAndroidChrome) {
+	return globalTouchIdentifier + tId;
+    }
+    return tId;
+}
+
 var grab = new Object();
 grab.surface = null;
 grab.ownerEvents = false;
 grab.implicit = false;
 var keyDownList = [];
+var inputList = [];
 var lastSerial = 0;
 var lastX = 0;
 var lastY = 0;
@@ -987,7 +1033,14 @@ function handleDisplayCommands(display_commands)
            break;
        case DISPLAY_OP_DELETE_SURFACE:
            var id = cmd[1];
-            delete surfaces[id];
+	    if (id == surfaceWithMouse) {
+		surfaceWithMouse = 0;
+	    }
+	    if (id == realSurfaceWithMouse) {
+		realSurfaceWithMouse = 0;
+		firstTouchDownId = null;
+	    }
+           delete surfaces[id];
            break;
        case DISPLAY_OP_CHANGE_TEXTURE:
            var image = cmd[1];
@@ -1371,8 +1424,14 @@ function getEffectiveEventTarget (id) {
 function updateKeyboardStatus() {
    if (fakeInput != null && showKeyboardChanged) {
        showKeyboardChanged = false;
-        if (showKeyboard)
+        if (showKeyboard) {
+	    if (isAndroidChrome) {
+		fakeInput.blur();
+		fakeInput.value = ' '.repeat(80); // TODO: Should be exchange with broadway server
+		                                  // to bring real value here.
+	    }
            fakeInput.focus();
+	}
        else
            fakeInput.blur();
    }
@@ -2924,6 +2983,19 @@ function pushKeyEvent(fev) {
    keyDownList.push(fev);
 }

+function copyInputEvent(ev) {
+    var members = ['inputType', 'data'], i, obj = {};
+    for (i = 0; i < members.length; i++) {
+	if (typeof ev[members[i]] !== "undefined")
+	    obj[members[i]] = ev[members[i]];
+    }
+    return obj;
+}
+
+function pushInputEvent(fev) {
+    inputList.push(fev);
+}
+
 function getKeyEvent(keyCode, pop) {
    var i, fev = null;
    for (i = keyDownList.length-1; i >= 0; i--) {
@@ -3022,6 +3094,29 @@ function handleKeyUp(e) {
        keysym = fev.keysym;
    else {
        //log("Key event (keyCode = " + ev.keyCode + ") not found on keyDownList");
+	if (isAndroidChrome && (ev.keyCode == 229)) {
+	    var i, fev = null, len = inputList.length, str;
+	    for (i = 0; i < len; i++) {
+		fev = inputList[i];
+		switch(fev.inputType) {
+		case "deleteContentBackward":
+		    sendInput(BROADWAY_EVENT_KEY_PRESS, [65288, lastState]);
+		    sendInput(BROADWAY_EVENT_KEY_RELEASE, [65288, lastState]);
+		    break;
+		case "insertText":
+		    if (fev.data !== undefined) {
+			for (let sym of fev.data) {
+			    sendInput(BROADWAY_EVENT_KEY_PRESS, [sym.codePointAt(0), lastState]);
+			    sendInput(BROADWAY_EVENT_KEY_RELEASE, [sym.codePointAt(0), lastState]);
+			}
+		    }
+		    break;
+		default:
+		    break;
+		}
+	    }
+	    inputList.splice(0, len);
+	}
        keysym = 0;
    }

@@ -3030,6 +3125,16 @@ function handleKeyUp(e) {
    return cancelEvent(ev);
 }

+function handleInput (e)  {
+    var fev = null, ev = (e ? e : window.event), keysym = null, suppress = false;
+
+    fev = copyInputEvent(ev);
+    pushInputEvent(fev);
+
+    // Stop keypress events just in case
+    return cancelEvent(ev);
+}
+
 function onKeyDown (ev) {
    updateForEvent(ev);
    return handleKeyDown(ev);
@@ -3045,6 +3150,11 @@ function onKeyUp (ev) {
    return handleKeyUp(ev);
 }

+function onInput (ev) {
+    updateForEvent(ev);
+    return handleInput(ev);
+}
+
 function cancelEvent(ev)
 {
    ev = ev ? ev : window.event;
@@ -3076,13 +3186,14 @@ function onMouseWheel(ev)
 }

 function onTouchStart(ev) {
-    event.preventDefault();
+    ev.preventDefault();

    updateKeyboardStatus();
    updateForEvent(ev);

    for (var i = 0; i < ev.changedTouches.length; i++) {
        var touch = ev.changedTouches.item(i);
+	var touchId = touchIdentifierStart(touch.identifier);

        var origId = getSurfaceId(touch);
        var id = getEffectiveEventTarget (origId);
@@ -3090,7 +3201,7 @@ function onTouchStart(ev) {
        var isEmulated = 0;

        if (firstTouchDownId == null) {
-            firstTouchDownId = touch.identifier;
+            firstTouchDownId = touchId;
            isEmulated = 1;

            if (realSurfaceWithMouse != origId || id != surfaceWithMouse) {
@@ -3105,52 +3216,54 @@ function onTouchStart(ev) {
            }
        }

-        sendInput (BROADWAY_EVENT_TOUCH, [0, id, touch.identifier, isEmulated, pos.rootX, pos.rootY, pos.winX, pos.winY, lastState]);
+        sendInput (BROADWAY_EVENT_TOUCH, [0, id, touchId, isEmulated, pos.rootX, pos.rootY, pos.winX, pos.winY, lastState]);
    }
 }

 function onTouchMove(ev) {
-    event.preventDefault();
+    ev.preventDefault();

    updateKeyboardStatus();
    updateForEvent(ev);

    for (var i = 0; i < ev.changedTouches.length; i++) {
        var touch = ev.changedTouches.item(i);
+	var touchId = touchIdentifier(touch.identifier);

        var origId = getSurfaceId(touch);
        var id = getEffectiveEventTarget (origId);
        var pos = getPositionsFromEvent(touch, id);

        var isEmulated = 0;
-        if (firstTouchDownId == touch.identifier) {
+        if (firstTouchDownId == touchId) {
            isEmulated = 1;
        }

-        sendInput (BROADWAY_EVENT_TOUCH, [1, id, touch.identifier, isEmulated, pos.rootX, pos.rootY, pos.winX, pos.winY, lastState]);
+        sendInput (BROADWAY_EVENT_TOUCH, [1, id, touchId, isEmulated, pos.rootX, pos.rootY, pos.winX, pos.winY, lastState]);
    }
 }

 function onTouchEnd(ev) {
-    event.preventDefault();
+    ev.preventDefault();

    updateKeyboardStatus();
    updateForEvent(ev);

    for (var i = 0; i < ev.changedTouches.length; i++) {
        var touch = ev.changedTouches.item(i);
+	var touchId = touchIdentifier(touch.identifier);

        var origId = getSurfaceId(touch);
        var id = getEffectiveEventTarget (origId);
        var pos = getPositionsFromEvent(touch, id);

        var isEmulated = 0;
-        if (firstTouchDownId == touch.identifier) {
+        if (firstTouchDownId == touchId) {
            isEmulated = 1;
            firstTouchDownId = null;
        }

-        sendInput (BROADWAY_EVENT_TOUCH, [2, id, touch.identifier, isEmulated, pos.rootX, pos.rootY, pos.winX, pos.winY, lastState]);
+        sendInput (BROADWAY_EVENT_TOUCH, [2, id, touchId, isEmulated, pos.rootX, pos.rootY, pos.winX, pos.winY, lastState]);
    }
 }

@@ -3167,11 +3280,11 @@ function setupDocument(document)
    document.onkeyup = onKeyUp;

    if (document.addEventListener) {
-      document.addEventListener('DOMMouseScroll', onMouseWheel, false);
-      document.addEventListener('mousewheel', onMouseWheel, false);
-      document.addEventListener('touchstart', onTouchStart, false);
-      document.addEventListener('touchmove', onTouchMove, false);
-      document.addEventListener('touchend', onTouchEnd, false);
+	document.addEventListener('DOMMouseScroll', onMouseWheel, passiveSupported ? { passive: false, capture: false } : false);
+	document.addEventListener('mousewheel', onMouseWheel, passiveSupported ? { passive: false, capture: false } : false);
+	document.addEventListener('touchstart', onTouchStart, passiveSupported ? { passive: false, capture: false } : false);
+	document.addEventListener('touchmove', onTouchMove, passiveSupported ? { passive: false, capture: false } : false);
+	document.addEventListener('touchend', onTouchEnd, passiveSupported ? { passive: false, capture: false } : false);
    } else if (document.attachEvent) {
      element.attachEvent("onmousewheel", onMouseWheel);
    }
@@ -3237,12 +3350,14 @@ function connect()
    };

    var iOS = /(iPad|iPhone|iPod)/g.test( navigator.userAgent );
-    if (iOS) {
+    if (iOS || isAndroidChrome) {
        fakeInput = document.createElement("input");
        fakeInput.type = "text";
        fakeInput.style.position = "absolute";
        fakeInput.style.left = "-1000px";
        fakeInput.style.top = "-1000px";
        document.body.appendChild(fakeInput);
+	if (isAndroidChrome)
+	    fakeInput.addEventListener('input', onInput, passiveSupported ? { passive: false, capture: false } : false);
    }
 }
@@ -122,6 +122,7 @@ static const GdkDebugKey gdk_debug_keys[] = {

  { "portals",         GDK_DEBUG_PORTALS, "Force use of portals" },
  { "no-portals",      GDK_DEBUG_NO_PORTALS, "Disable use of portals" },
+  { "force-offload",   GDK_DEBUG_FORCE_OFFLOAD, "Force graphics offload for all textures" },
  { "gl-disable",      GDK_DEBUG_GL_DISABLE, "Disable OpenGL support" },
  { "gl-no-fractional", GDK_DEBUG_GL_NO_FRACTIONAL, "Disable fractional scaling for OpenGL" },
  { "gl-debug",        GDK_DEBUG_GL_DEBUG, "Insert debugging information in OpenGL" },
@@ -142,50 +143,31 @@ static const GdkDebugKey gdk_debug_keys[] = {

 #ifdef G_HAS_CONSTRUCTORS
 #ifdef G_DEFINE_CONSTRUCTOR_NEEDS_PRAGMA
-#pragma G_DEFINE_CONSTRUCTOR_PRAGMA_ARGS(stash_and_unset_environment)
+#pragma G_DEFINE_CONSTRUCTOR_PRAGMA_ARGS(stash_desktop_startup_notification_id)
 #endif
-G_DEFINE_CONSTRUCTOR(stash_and_unset_environment)
+G_DEFINE_CONSTRUCTOR(stash_desktop_startup_notification_id)
 #endif

 static char *startup_notification_id = NULL;
-static char *xdg_activation_token = NULL;

 static void
-stash_and_unset_environment (void)
+stash_desktop_startup_notification_id (void)
 {
-  /* Copies environment variables and unsets them so they won't be inherited by
-   * child processes and confuse things.
-   *
-   * Changing environment variables can be racy so we try to do this as early as
-   * possible in the program flow and before any printing that might involve
-   * environment variables.
-   */
-  struct {
-    const char *key;
-    char **dst;
-  } vars[] = {
-    { "DESKTOP_STARTUP_ID", &startup_notification_id },
-    { "XDG_ACTIVATION_TOKEN", &xdg_activation_token },
-  };
-  size_t i;
+  const char *desktop_startup_id;

-  for (i = 0; i < G_N_ELEMENTS (vars); i++)
-    *vars[i].dst = g_strdup (g_getenv (vars[i].key));
-
-  for (i = 0; i < G_N_ELEMENTS (vars); i++)
-    g_unsetenv (vars[i].key);
-
-  for (i = 0; i < G_N_ELEMENTS (vars); i++)
+  desktop_startup_id = g_getenv ("DESKTOP_STARTUP_ID");
+  if (desktop_startup_id && *desktop_startup_id != '\0')
    {
-      if (*vars[i].dst == NULL)
-        continue;
-
-      if (!g_utf8_validate (*vars[i].dst, -1, NULL))
-        {
-          g_warning ("%s contains invalid UTF-8", vars[i].key);
-          g_clear_pointer (vars[i].dst, g_free);
-        }
+      if (!g_utf8_validate (desktop_startup_id, -1, NULL))
+        g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
+      else
+        startup_notification_id = g_strdup (desktop_startup_id);
    }
+
+  /* Clear the environment variable so it won't be inherited by
+   * child processes and confuse things.
+   */
+  g_unsetenv ("DESKTOP_STARTUP_ID");
 }

 static gpointer
@@ -310,7 +292,7 @@ gdk_pre_parse (void)
    gdk_gl_backend_use (GDK_GL_WGL);

 #ifndef G_HAS_CONSTRUCTORS
-  stash_and_unset_environment ();
+  stash_desktop_startup_notification_id ();
 #endif
 }

@@ -344,20 +326,15 @@ gdk_display_open_default (void)
 /*< private >
 * gdk_get_startup_notification_id:
 *
- * Returns the original value of the XDG_ACTIVATION_TOKEN environment
- * variable if it was defined and valid, otherwise it returns the original
- * value of the DESKTOP_STARTUP_ID environment variable if it was defined
- * and valid, or %NULL if neither of them were defined and valid.
+ * Returns the original value of the DESKTOP_STARTUP_ID environment
+ * variable if it was defined and valid, or %NULL otherwise.
 *
 * Returns: (nullable) (transfer none): the original value of the
- *   XDG_ACTIVATION_TOKEN or DESKTOP_STARTUP_ID environment variable
+ *   DESKTOP_STARTUP_ID environment variable
 */
 const char *
 gdk_get_startup_notification_id (void)
 {
-  if (xdg_activation_token)
-    return xdg_activation_token;
-
  return startup_notification_id;
 }

@@ -156,6 +156,9 @@ gdk_cursor_finalize (GObject *object)
  g_clear_object (&cursor->texture);
  g_clear_object (&cursor->fallback);

+  if (cursor->destroy)
+    cursor->destroy (cursor->data);
+
  G_OBJECT_CLASS (gdk_cursor_parent_class)->finalize (object);
 }

@@ -253,6 +256,11 @@ gdk_cursor_hash (gconstpointer pointer)
    hash ^= g_str_hash (cursor->name);
  else if (cursor->texture)
    hash ^= g_direct_hash (cursor->texture);
+  else if (cursor->callback)
+    {
+      hash ^= g_direct_hash (cursor->callback);
+      hash ^= g_direct_hash (cursor->data);
+    }

  hash ^= (cursor->hotspot_x << 8) | cursor->hotspot_y;

@@ -281,6 +289,10 @@ gdk_cursor_equal (gconstpointer a,
      ca->hotspot_y != cb->hotspot_y)
    return FALSE;

+  if (ca->callback != cb->callback ||
+      ca->data != cb->data)
+    return FALSE;
+
  return TRUE;
 }

@@ -355,6 +367,45 @@ gdk_cursor_new_from_texture (GdkTexture *texture,
                       NULL);
 }

+/**
+ * gdk_cursor_new_from_callback:
+ * @callback: the `GdkCursorGetTextureCallback`
+ * @data: data to pass to @callback
+ * @destroy: destroy notify for @data
+ * @fallback: (nullable): the `GdkCursor` to fall back to when
+ *   this one cannot be supported
+ *
+ * Creates a new callback-based cursor object.
+ *
+ * Cursors of this kind produce textures for the cursor
+ * image on demand, when the @callback is called.
+ *
+ * Returns: (nullable): a new `GdkCursor`
+ *
+ * Since: 4.16
+ */
+GdkCursor *
+gdk_cursor_new_from_callback (GdkCursorGetTextureCallback  callback,
+                              gpointer                     data,
+                              GDestroyNotify               destroy,
+                              GdkCursor                   *fallback)
+{
+  GdkCursor *cursor;
+
+  g_return_val_if_fail (callback != NULL, NULL);
+  g_return_val_if_fail (fallback == NULL || GDK_IS_CURSOR (fallback), NULL);
+
+  cursor = g_object_new (GDK_TYPE_CURSOR,
+                         "fallback", fallback,
+                         NULL);
+
+  cursor->callback = callback;
+  cursor->data = data;
+  cursor->destroy = destroy;
+
+  return cursor;
+}
+
 /**
 * gdk_cursor_get_fallback: (attributes org.gtk.Method.get_property=fallback)
 * @cursor: a `GdkCursor`
@@ -459,3 +510,22 @@ gdk_cursor_get_hotspot_y (GdkCursor *cursor)

  return cursor->hotspot_y;
 }
+
+GdkTexture *
+gdk_cursor_get_texture_for_size (GdkCursor *cursor,
+                                 int        cursor_size,
+                                 double     scale,
+                                 int       *width,
+                                 int       *height,
+                                 int       *hotspot_x,
+                                 int       *hotspot_y)
+{
+  if (cursor->callback == NULL)
+    return NULL;
+
+  return cursor->callback (cursor,
+                           cursor_size, scale,
+                           width, height,
+                           hotspot_x, hotspot_y,
+                           cursor->data);
+}
@@ -51,6 +51,52 @@ GDK_AVAILABLE_IN_ALL
 GdkCursor*  gdk_cursor_new_from_name     (const char      *name,
                                          GdkCursor       *fallback);

+/**
+ * GdkCursorGetTestureCallback:
+ * @cursor: the `GdkCursor`
+ * @cursor_size: the nominal cursor size, in application pixels
+ * @scale: the device scale
+ * @width: (out): return location for the actual cursor width,
+ *   in application pixels
+ * @height: (out): return location for the actual cursor height,
+ *   in application pixels
+ * @hotspot_x: (out): return location for the hotspot X position,
+ *   in application pixels
+ * @hotspot_y: (out): return location for the hotspot Y position,
+ *   in application pixels
+ * @data: User data for the callback
+ *
+ * The type of callback used by a dynamic `GdkCursor` to generate
+ * a texture for the cursor image at the given @cursor_size
+ * and @scale.
+ *
+ * The actual cursor size in application pixels may be different
+ * from @cursor_size x @cursor_size, and will be returned in
+ * @width, @height. The returned texture should have a size that
+ * corresponds to the actual cursor size, in device pixels (i.e.
+ * application pixels, multiplied by @scale).
+ *
+ * This function may fail and return `NULL`, in which case
+ * the fallback cursor will be used.
+ *
+ * Returns: (nullable) (transfer full): the cursor image, or
+ *   `NULL` if none could be produced.
+ */
+typedef GdkTexture * (* GdkCursorGetTextureCallback) (GdkCursor   *cursor,
+                                                      int          cursor_size,
+                                                      double       scale,
+                                                      int         *width,
+                                                      int         *height,
+                                                      int         *hotspot_x,
+                                                      int         *hotspot_y,
+                                                      gpointer     data);
+
+GDK_AVAILABLE_IN_4_16
+GdkCursor * gdk_cursor_new_from_callback (GdkCursorGetTextureCallback  callback,
+                                          gpointer                     data,
+                                          GDestroyNotify               destroy,
+                                          GdkCursor                   *fallback);
+
 GDK_AVAILABLE_IN_ALL
 GdkCursor * gdk_cursor_get_fallback      (GdkCursor       *cursor);
 GDK_AVAILABLE_IN_ALL
@@ -44,6 +44,10 @@ struct _GdkCursor
  GdkTexture *texture;
  int hotspot_x;
  int hotspot_y;
+
+  GdkCursorGetTextureCallback callback;
+  gpointer data;
+  GDestroyNotify destroy;
 };

 struct _GdkCursorClass
@@ -55,5 +59,13 @@ guint                   gdk_cursor_hash                         (gconstpointer
 gboolean                gdk_cursor_equal                        (gconstpointer          a,
                                                                 gconstpointer          b);

+GdkTexture *            gdk_cursor_get_texture_for_size         (GdkCursor *cursor,
+                                                                 int        cursor_size,
+                                                                 double     scale,
+                                                                 int       *width,
+                                                                 int       *height,
+                                                                 int       *hotspot_x,
+                                                                 int       *hotspot_y);
+
 G_END_DECLS

@@ -44,7 +44,7 @@ typedef enum {
  GDK_DEBUG_NO_PORTALS      = 1 << 15,
  GDK_DEBUG_GL_DISABLE      = 1 << 16,
  GDK_DEBUG_GL_NO_FRACTIONAL= 1 << 17,
-
+  GDK_DEBUG_FORCE_OFFLOAD   = 1 << 18,
  GDK_DEBUG_GL_DISABLE_GL   = 1 << 19,
  GDK_DEBUG_GL_DISABLE_GLES = 1 << 20,
  GDK_DEBUG_GL_PREFER_GL    = 1 << 21,
@@ -144,8 +144,8 @@ struct _YUVCoefficients
 };

 /* multiplied by 65536 */
-static const YUVCoefficients itu601_narrow = { 104597, -25675, -53279, 132201 };
-//static const YUVCoefficients itu601_wide = { 74711, -25864, -38050, 133176 };
+//static const YUVCoefficients itu601_narrow = { 104597, -25675, -53279, 132201 };
+static const YUVCoefficients itu601_wide = { 74711, -25864, -38050, 133176 };

 static inline void
 get_uv_values (const YUVCoefficients *coeffs,
@@ -229,7 +229,7 @@ download_nv12 (guchar          *dst_data,
          int r, g, b;
          gsize xs, ys;

-          get_uv_values (&itu601_narrow, uv_data[x / X_SUB * 2 + U], uv_data[x / X_SUB * 2 + V], &r, &g, &b);
+          get_uv_values (&itu601_wide, uv_data[x / X_SUB * 2 + U], uv_data[x / X_SUB * 2 + V], &r, &g, &b);

          for (ys = 0; ys < Y_SUB && y + ys < height; ys++)
            for (xs = 0; xs < X_SUB && x + xs < width; xs++)
@@ -309,7 +309,7 @@ download_yuv_3 (guchar          *dst_data,
          int r, g, b;
          gsize xs, ys;

-          get_uv_values (&itu601_narrow, u_data[x / X_SUB], v_data[x / X_SUB], &r, &g, &b);
+          get_uv_values (&itu601_wide, u_data[x / X_SUB], v_data[x / X_SUB], &r, &g, &b);

          for (ys = 0; ys < Y_SUB && y + ys < height; ys++)
            for (xs = 0; xs < X_SUB && x + xs < width; xs++)
@@ -365,7 +365,7 @@ download_yuyv (guchar          *dst_data,
        {
          int r, g, b;

-          get_uv_values (&itu601_narrow, src_data[2 * x + U], src_data[2 * x + V], &r, &g, &b);
+          get_uv_values (&itu601_wide, src_data[2 * x + U], src_data[2 * x + V], &r, &g, &b);
          set_rgb_values (&dst_data[3 * x], src_data[2 * x + Y1], r, g, b);
          if (x + 1 < width)
            set_rgb_values (&dst_data[3 * (x + 1)], src_data[2 * x + Y2], r, g, b);
@@ -239,7 +239,7 @@ gdk_dmabuf_egl_create_image (GdkDisplay      *display,
  attribs[i++] = EGL_YUV_COLOR_SPACE_HINT_EXT;
  attribs[i++] = EGL_ITU_REC601_EXT;
  attribs[i++] = EGL_SAMPLE_RANGE_HINT_EXT;
-  attribs[i++] = EGL_YUV_NARROW_RANGE_EXT;
+  attribs[i++] = EGL_YUV_FULL_RANGE_EXT;

 #define ADD_PLANE(plane) \
  { \
@@ -265,7 +265,6 @@ gdk_dmabuf_egl_create_image (GdkDisplay      *display,
  if (dmabuf->n_planes > 3) ADD_PLANE (3);

  attribs[i++] = EGL_NONE;
-  g_assert (i < G_N_ELEMENTS (attribs));

  image = eglCreateImageKHR (egl_display,
                             EGL_NO_CONTEXT,
@@ -25,6 +25,7 @@
 #include "gdkdmabufformatsbuilderprivate.h"
 #include "gdkdmabuffourccprivate.h"
 #include "gdkdmabufprivate.h"
+#include "gdkdmabuftexturebuilderprivate.h"
 #include "gdktextureprivate.h"
 #include <gdk/gdkglcontext.h>
 #include <gdk/gdkgltexturebuilder.h>
@@ -25,6 +25,7 @@
 #include "gdkdisplay.h"
 #include "gdkenumtypes.h"
 #include "gdkdmabuftextureprivate.h"
+#include "gdkdmabuftexturebuilderprivate.h"

 #include <cairo-gobject.h>

@@ -948,22 +949,20 @@ gdk_dmabuf_texture_builder_set_update_region (GdkDmabufTextureBuilder *self,
 *
 * Builds a new `GdkTexture` with the values set up in the builder.
 *
- * It is a programming error to call this function if any mandatory
- * property has not been set.
+ * It is a programming error to call this function if any mandatory property has not been set.
 *
- * If the dmabuf is not supported by GTK, %NULL will be returned and @error will be set.
+ * Not all formats defined in the `drm_fourcc.h` header are supported. You can use
+ * [method@Gdk.Display.get_dmabuf_formats] to get a list of supported formats. If the
+ * format is not supported by GTK, %NULL will be returned and @error will be set.
 *
 * The `destroy` function gets called when the returned texture gets released.
 *
- * It is possible to call this function multiple times to create multiple textures,
- * possibly with changing properties in between.
- *
 * It is the responsibility of the caller to keep the file descriptors for the planes
 * open until the created texture is no longer used, and close them afterwards (possibly
 * using the @destroy notify).
 *
- * Not all formats defined in the `drm_fourcc.h` header are supported. You can use
- * [method@Gdk.Display.get_dmabuf_formats] to get a list of supported formats.
+ * It is possible to call this function multiple times to create multiple textures,
+ * possibly with changing properties in between.
 *
 * Returns: (transfer full) (nullable): a newly built `GdkTexture` or `NULL`
 *   if the format is not supported
@@ -1004,3 +1003,19 @@ gdk_dmabuf_texture_builder_get_dmabuf (GdkDmabufTextureBuilder *self)
 {
  return &self->dmabuf;
 }
+
+void
+gdk_dmabuf_texture_builder_set_dmabuf (GdkDmabufTextureBuilder *self,
+                                       const GdkDmabuf         *dmabuf)
+{
+  gdk_dmabuf_texture_builder_set_fourcc (self, dmabuf->fourcc);
+  gdk_dmabuf_texture_builder_set_modifier (self, dmabuf->modifier);
+  gdk_dmabuf_texture_builder_set_n_planes (self, dmabuf->n_planes);
+
+  for (unsigned int i = 0; i < dmabuf->n_planes; i++)
+    {
+      gdk_dmabuf_texture_builder_set_fd (self, i, dmabuf->planes[i].fd);
+      gdk_dmabuf_texture_builder_set_stride (self, i, dmabuf->planes[i].stride);
+      gdk_dmabuf_texture_builder_set_offset (self, i, dmabuf->planes[i].offset);
+    }
+}
@@ -0,0 +1,14 @@
+#pragma once
+
+#include "gdkdmabuftexturebuilder.h"
+#include "gdkdmabufprivate.h"
+
+G_BEGIN_DECLS
+
+const GdkDmabuf *       gdk_dmabuf_texture_builder_get_dmabuf   (GdkDmabufTextureBuilder *builder);
+
+void                    gdk_dmabuf_texture_builder_set_dmabuf   (GdkDmabufTextureBuilder *builder,
+                                                                 const GdkDmabuf         *dmabuf);
+
+G_END_DECLS
+
@@ -7,8 +7,6 @@

 G_BEGIN_DECLS

-const GdkDmabuf *       gdk_dmabuf_texture_builder_get_dmabuf   (GdkDmabufTextureBuilder *builder);
-
 GdkTexture *            gdk_dmabuf_texture_new_from_builder (GdkDmabufTextureBuilder *builder,
                                                             GDestroyNotify           destroy,
                                                             gpointer                 data,
@@ -192,6 +192,13 @@ compute_smooth_frame_time (GdkFrameClock *clock,
   *        and new_frame_time >= old_frame_time. */
  frames_passed = (new_frame_time - smoothed_frame_time_base + frame_interval / 2) / frame_interval;

+  if (frames_passed > 1)
+    gdk_profiler_add_markf ((smoothed_frame_time_base - (frame_interval * (frames_passed-1))) * 1000L,
+                            frame_interval * (frames_passed-1) * 1000L,
+                            "Dropped Frames",
+                            "%u frames may have been dropped",
+                            frames_passed-1);
+
  /* We use an approximately whole number of frames in the future from
   * last smoothed frame time. This way we avoid minor jitter in the
   * frame times making the animation speed uneven, but still animate
@@ -2198,78 +2198,12 @@ gdk_gl_context_import_dmabuf (GdkGLContext    *self,

  gdk_display_init_dmabuf (display);

-  if (gdk_dmabuf_formats_contains (display->egl_dmabuf_formats, dmabuf->fourcc, dmabuf->modifier))
+  if (!gdk_dmabuf_formats_contains (display->egl_external_formats, dmabuf->fourcc, dmabuf->modifier))
    {
-      /* This is the path for modern drivers that support modifiers */
-
-      if (!gdk_dmabuf_formats_contains (display->egl_external_formats, dmabuf->fourcc, dmabuf->modifier))
-        {
-          texture_id = gdk_gl_context_import_dmabuf_for_target (self,
-                                                                width, height,
-                                                                dmabuf,
-                                                                GL_TEXTURE_2D);
-          if (texture_id == 0)
-            {
-              GDK_DISPLAY_DEBUG (display, DMABUF,
-                                 "Import of %dx%d %.4s:%#" G_GINT64_MODIFIER "x dmabuf failed",
-                                 width, height,
-                                 (char *) &dmabuf->fourcc, dmabuf->modifier);
-              return 0;
-            }
-
-          GDK_DISPLAY_DEBUG (display, DMABUF,
-                             "Imported %dx%d %.4s:%#" G_GINT64_MODIFIER "x dmabuf as GL_TEXTURE_2D texture",
-                             width, height,
-                             (char *) &dmabuf->fourcc, dmabuf->modifier);
-          *external = FALSE;
-          return texture_id;
-        }
-
-      if (!gdk_gl_context_get_use_es (self))
-        {
-          GDK_DISPLAY_DEBUG (display, DMABUF,
-                             "Can't import external_only %.4s:%#" G_GINT64_MODIFIER "x outside of GLES",
-                             (char *) &dmabuf->fourcc, dmabuf->modifier);
-          return 0;
-        }
-
      texture_id = gdk_gl_context_import_dmabuf_for_target (self,
                                                            width, height,
                                                            dmabuf,
-                                                            GL_TEXTURE_EXTERNAL_OES);
-      if (texture_id == 0)
-        {
-          GDK_DISPLAY_DEBUG (display, DMABUF,
-                             "Import of external_only %dx%d %.4s:%#" G_GINT64_MODIFIER "x dmabuf failed",
-                             width, height,
-                             (char *) &dmabuf->fourcc, dmabuf->modifier);
-          return 0;
-        }
-
-      GDK_DISPLAY_DEBUG (display, DMABUF,
-                         "Imported %dx%d %.4s:%#" G_GINT64_MODIFIER "x dmabuf as GL_TEXTURE_EXTERNAL_OES texture",
-                         width, height,
-                         (char *) &dmabuf->fourcc, dmabuf->modifier);
-      *external = TRUE;
-      return texture_id;
-    }
-  else
-    {
-      /* This is the opportunistic path.
-       * We hit it both for drivers that do not support modifiers as well as for dmabufs
-       * that the driver did not explicitly advertise. */
-      int target;
-
-      if (gdk_gl_context_get_use_es (self))
-        target = GL_TEXTURE_EXTERNAL_OES;
-      else
-        target = GL_TEXTURE_2D;
-
-      texture_id = gdk_gl_context_import_dmabuf_for_target (self,
-                                                            width, height,
-                                                            dmabuf,
-                                                            target);
-
+                                                            GL_TEXTURE_2D);
      if (texture_id == 0)
        {
          GDK_DISPLAY_DEBUG (display, DMABUF,
@@ -2280,13 +2214,40 @@ gdk_gl_context_import_dmabuf (GdkGLContext    *self,
        }

      GDK_DISPLAY_DEBUG (display, DMABUF,
-                         "Imported %dx%d %.4s:%#" G_GINT64_MODIFIER "x dmabuf as %s texture",
+                         "Imported %dx%d %.4s:%#" G_GINT64_MODIFIER "x dmabuf as GL_TEXTURE_2D texture",
                         width, height,
-                         (char *) &dmabuf->fourcc, dmabuf->modifier,
-                         target == GL_TEXTURE_EXTERNAL_OES ? "GL_TEXTURE_EXTERNAL_OES" : "GL_TEXTURE_2D");
-      *external = target == GL_TEXTURE_EXTERNAL_OES;
+                         (char *) &dmabuf->fourcc, dmabuf->modifier);
+      *external = FALSE;
      return texture_id;
    }
+
+  if (!gdk_gl_context_get_use_es (self))
+    {
+      GDK_DISPLAY_DEBUG (display, DMABUF,
+                         "Can't import external_only %.4s:%#" G_GINT64_MODIFIER "x outside of GLES",
+                         (char *) &dmabuf->fourcc, dmabuf->modifier);
+      return 0;
+    }
+
+  texture_id = gdk_gl_context_import_dmabuf_for_target (self,
+                                                        width, height,
+                                                        dmabuf,
+                                                        GL_TEXTURE_EXTERNAL_OES);
+  if (texture_id == 0)
+    {
+      GDK_DISPLAY_DEBUG (display, DMABUF,
+                         "Import of external_only %dx%d %.4s:%#" G_GINT64_MODIFIER "x dmabuf failed",
+                         width, height,
+                         (char *) &dmabuf->fourcc, dmabuf->modifier);
+      return 0;
+    }
+
+  GDK_DISPLAY_DEBUG (display, DMABUF,
+                     "Imported %dx%d %.4s:%#" G_GINT64_MODIFIER "x dmabuf as GL_TEXTURE_EXTERNAL_OES texture",
+                     width, height,
+                     (char *) &dmabuf->fourcc, dmabuf->modifier);
+  *external = TRUE;
+  return texture_id;
 }

 gboolean
@@ -744,3 +744,11 @@ gdk_monitor_set_description (GdkMonitor *monitor,
  g_object_notify_by_pspec (G_OBJECT (monitor), props[PROP_DESCRIPTION]);
 }

+#define MM_PER_INCH 25.4
+
+double
+gdk_monitor_get_dpi (GdkMonitor *monitor)
+{
+  return MAX ((monitor->geometry.width * monitor->scale) / (monitor->width_mm / MM_PER_INCH),
+              (monitor->geometry.height * monitor->scale) / (monitor->height_mm / MM_PER_INCH));
+}
@@ -76,6 +76,7 @@ void            gdk_monitor_set_subpixel_layout (GdkMonitor        *monitor,
 void            gdk_monitor_invalidate          (GdkMonitor *monitor);
 void            gdk_monitor_set_description     (GdkMonitor *monitor,
                                                 const char *description);
+double          gdk_monitor_get_dpi             (GdkMonitor *monitor);

 G_END_DECLS

@@ -98,9 +98,9 @@ gdk_rgba_free (GdkRGBA *rgba)
 * Returns: %TRUE if the @rgba is clear
 */
 gboolean
-gdk_rgba_is_clear (const GdkRGBA *rgba)
+(gdk_rgba_is_clear) (const GdkRGBA *rgba)
 {
-  return rgba->alpha < ((float) 0x00ff / (float) 0xffff);
+  return _gdk_rgba_is_clear (rgba);
 }

 /**
@@ -115,9 +115,9 @@ gdk_rgba_is_clear (const GdkRGBA *rgba)
 * Returns: %TRUE if the @rgba is opaque
 */
 gboolean
-gdk_rgba_is_opaque (const GdkRGBA *rgba)
+(gdk_rgba_is_opaque) (const GdkRGBA *rgba)
 {
-  return rgba->alpha > ((float)0xff00 / (float)0xffff);
+  return _gdk_rgba_is_opaque (rgba);
 }

 #define SKIP_WHITESPACES(s) while (*(s) == ' ') (s)++;
@@ -368,21 +368,10 @@ gdk_rgba_hash (gconstpointer p)
 * Returns: %TRUE if the two colors compare equal
 */
 gboolean
-gdk_rgba_equal (gconstpointer p1,
-                gconstpointer p2)
+(gdk_rgba_equal) (gconstpointer p1,
+                  gconstpointer p2)
 {
-  const GdkRGBA *rgba1, *rgba2;
-
-  rgba1 = p1;
-  rgba2 = p2;
-
-  if (rgba1->red == rgba2->red &&
-      rgba1->green == rgba2->green &&
-      rgba1->blue == rgba2->blue &&
-      rgba1->alpha == rgba2->alpha)
-    return TRUE;
-
-  return FALSE;
+  return _gdk_rgba_equal (p1, p2);
 }

 /**
@@ -43,5 +43,34 @@
 gboolean               gdk_rgba_parser_parse                    (GtkCssParser           *parser,
                                                                 GdkRGBA                *rgba);

+#define gdk_rgba_is_clear(rgba) _gdk_rgba_is_clear (rgba)
+#define gdk_rgba_is_opaque(rgba) _gdk_rgba_is_opaque (rgba)
+#define gdk_rgba_equal(p1, p2) _gdk_rgba_equal (p1, p2)
+
+static inline gboolean
+_gdk_rgba_is_clear (const GdkRGBA *rgba)
+{
+  return rgba->alpha < ((float) 0x00ff / (float) 0xffff);
+}
+
+static inline gboolean
+_gdk_rgba_is_opaque (const GdkRGBA *rgba)
+{
+  return rgba->alpha > ((float)0xff00 / (float)0xffff);
+}
+
+static inline gboolean
+_gdk_rgba_equal (gconstpointer p1,
+                 gconstpointer p2)
+{
+  const GdkRGBA *rgba1 = p1;
+  const GdkRGBA *rgba2 = p2;
+
+  return rgba1->red == rgba2->red &&
+         rgba1->green == rgba2->green &&
+         rgba1->blue == rgba2->blue &&
+         rgba1->alpha == rgba2->alpha;
+}
+
 G_END_DECLS

@@ -48,6 +48,14 @@ gdk_subsurface_class_init (GdkSubsurfaceClass *class)
  object_class->finalize = gdk_subsurface_finalize;
 }

+/*< private >
+ * gdk_subsurface_get_parent:
+ * @subsurface: a `GdkSubsurface`
+ *
+ * Returns the parent surface of @subsurface.
+ *
+ * Returns: the parent surface
+ */
 GdkSurface *
 gdk_subsurface_get_parent (GdkSubsurface *subsurface)
 {
@@ -108,15 +116,41 @@ insert_subsurface (GdkSubsurface *subsurface,
    }
 }

+/*< private >
+ * gdk_subsurface_attach:
+ * @subsurface: the `GdkSubsurface`
+ * @texture: the texture to attach. This typically has to be a `GdkDmabufTexture`
+ * @source: the source rectangle (i.e. the subset of the texture) to display
+ * @dest: the dest rectangle, in application pixels, relative to the parent surface.
+ *   It must be integral in application and device pixels, or attaching will fail
+ * @transform: the transform to apply to the texture contents before displaying
+ * @background: (nullable): the background rectangle, in application pixels relative
+ *   to the parent surface. This tells GDK to put a black background of this
+ *   size below the subsurface. It must be integral in application and device pixels,
+ *   or attaching will fail
+ * @above: whether the subsurface should be above its sibling
+ * @sibling: (nullable): the sibling subsurface to stack relative to, or `NULL` to
+ *   stack relative to the parent surface
+ *
+ * Attaches content to a subsurface.
+ *
+ * This function takes all the necessary arguments to determine the subsurface
+ * configuration, including its position, size, content, background and stacking.
+ *
+ * Returns: `TRUE` if the attaching succeeded
+ */
 gboolean
 gdk_subsurface_attach (GdkSubsurface         *subsurface,
                       GdkTexture            *texture,
                       const graphene_rect_t *source,
                       const graphene_rect_t *dest,
+                       GdkTextureTransform    transform,
+                       const graphene_rect_t *background,
                       gboolean               above,
                       GdkSubsurface         *sibling)
 {
  GdkSurface *parent = subsurface->parent;
+  gboolean result;

  g_return_val_if_fail (GDK_IS_SUBSURFACE (subsurface), FALSE);
  g_return_val_if_fail (GDK_IS_TEXTURE (texture), FALSE);
@@ -130,6 +164,15 @@ gdk_subsurface_attach (GdkSubsurface         *subsurface,
  g_return_val_if_fail (sibling == NULL || GDK_IS_SUBSURFACE (sibling), FALSE);
  g_return_val_if_fail (sibling == NULL || sibling->parent == subsurface->parent, FALSE);

+  result = GDK_SUBSURFACE_GET_CLASS (subsurface)->attach (subsurface,
+                                                          texture,
+                                                          source,
+                                                          dest,
+                                                          transform,
+                                                          background,
+                                                          above,
+                                                          sibling);
+
  remove_subsurface (subsurface);

  if (sibling)
@@ -155,9 +198,17 @@ gdk_subsurface_attach (GdkSubsurface         *subsurface,
        }
    }

-  return GDK_SUBSURFACE_GET_CLASS (subsurface)->attach (subsurface, texture, source, dest, above, sibling);
+  return result;
 }

+/*< private >
+ * gdk_subsurface_detach:
+ * @subsurface: a `GdkSubsurface`
+ *
+ * Hides the subsurface.
+ *
+ * To show it again, you need to call gdk_subsurface_attach().
+ */
 void
 gdk_subsurface_detach (GdkSubsurface *subsurface)
 {
@@ -168,6 +219,14 @@ gdk_subsurface_detach (GdkSubsurface *subsurface)
  GDK_SUBSURFACE_GET_CLASS (subsurface)->detach (subsurface);
 }

+/*< private >
+ * gdk_subsurface_get_texture:
+ * @subsurface: a `GdkSubsurface`
+ *
+ * Gets the texture that is currently displayed by the subsurface.
+ *
+ * Returns: (nullable): the texture that is displayed
+ */
 GdkTexture *
 gdk_subsurface_get_texture (GdkSubsurface *subsurface)
 {
@@ -176,30 +235,138 @@ gdk_subsurface_get_texture (GdkSubsurface *subsurface)
  return GDK_SUBSURFACE_GET_CLASS (subsurface)->get_texture (subsurface);
 }

+/*< private >
+ * gdk_subsurface_get_source_rect:
+ * @subsurface: a `GdkSubsurface`
+ * @rect: (out caller-allocates): return location for the rectangle
+ *
+ * Returns the source rect that was specified in the most recent
+ * gdk_subsurface_attach() call for @subsurface.
+ */
 void
-gdk_subsurface_get_source (GdkSubsurface   *subsurface,
-                           graphene_rect_t *source)
+gdk_subsurface_get_source_rect (GdkSubsurface   *subsurface,
+                                graphene_rect_t *rect)
 {
  g_return_if_fail (GDK_IS_SUBSURFACE (subsurface));
-  g_return_if_fail (source != NULL);
+  g_return_if_fail (rect != NULL);

-  GDK_SUBSURFACE_GET_CLASS (subsurface)->get_source (subsurface, source);
+  GDK_SUBSURFACE_GET_CLASS (subsurface)->get_source_rect (subsurface, rect);
 }

+/*< private >
+ * gdk_subsurface_get_texture_rect:
+ * @subsurface: a `GdkSubsurface`
+ * @rect: (out caller-allocates): return location for the rectangle
+ *
+ * Returns the texture rect that was specified in the most recent
+ * gdk_subsurface_attach() call for @subsurface.
+ */
 void
-gdk_subsurface_get_dest (GdkSubsurface   *subsurface,
-                         graphene_rect_t *dest)
+gdk_subsurface_get_texture_rect (GdkSubsurface   *subsurface,
+                                 graphene_rect_t *rect)
 {
  g_return_if_fail (GDK_IS_SUBSURFACE (subsurface));
-  g_return_if_fail (dest != NULL);
+  g_return_if_fail (rect != NULL);

-  GDK_SUBSURFACE_GET_CLASS (subsurface)->get_dest (subsurface, dest);
+  GDK_SUBSURFACE_GET_CLASS (subsurface)->get_texture_rect (subsurface, rect);
 }

+/*< private >
+ * gdk_subsurface_is_above_parent:
+ * @subsurface: a `GdkSubsurface`
+ *
+ * Returns whether the subsurface is above the parent surface
+ * or below. Note that a subsurface can be above its parent
+ * surface, and still be covered by sibling subsurfaces.
+ *
+ * Returns: `TRUE` if @subsurface is above its parent
+ */
 gboolean
 gdk_subsurface_is_above_parent (GdkSubsurface *subsurface)
 {
-  g_return_val_if_fail (GDK_IS_SUBSURFACE (subsurface), TRUE);
+  g_return_val_if_fail (GDK_IS_SUBSURFACE (subsurface), FALSE);

  return subsurface->above_parent;
 }
+
+/*< private>
+ * gdk_subsurface_get_sibling:
+ * @subsurface: the `GdkSubsurface`
+ * @above: whether to get the subsurface above
+ *
+ * Returns the subsurface above (or below) @subsurface in
+ * the stacking order.
+ *
+ * Returns: the sibling, or `NULL` if there is none.
+ */
+GdkSubsurface *
+gdk_subsurface_get_sibling (GdkSubsurface *subsurface,
+                            gboolean       above)
+{
+  g_return_val_if_fail (GDK_IS_SUBSURFACE (subsurface), NULL);
+
+  if (above)
+    return subsurface->sibling_above;
+  else
+    return subsurface->sibling_below;
+}
+
+/*< private >
+ * gdk_subsurface_get_transform:
+ * @subsurface: a `GdkSubsurface`
+ *
+ * Returns the transform that was specified in the most recent call to
+ * gdk_subsurface_attach() call for @subsurface.
+ *
+ * Returns: the transform
+ */
+GdkTextureTransform
+gdk_subsurface_get_transform (GdkSubsurface *subsurface)
+{
+  g_return_val_if_fail (GDK_IS_SUBSURFACE (subsurface), GDK_TEXTURE_TRANSFORM_NORMAL);
+
+  return GDK_SUBSURFACE_GET_CLASS (subsurface)->get_transform (subsurface);
+}
+
+/*< private >
+ * gdk_subsurface_get_background_rect:
+ * @subsurface: a `GdkSubsurface`
+ * @rect: (out caller-allocates): return location for the rectangle
+ *
+ * Obtains the background rect that was specified in the most recent
+ * gdk_subsurface_attach() call for @subsurface.
+ *
+ * Returns: `TRUE` if @subsurface has a background
+ */
+gboolean
+gdk_subsurface_get_background_rect (GdkSubsurface   *subsurface,
+                                    graphene_rect_t *rect)
+{
+  g_return_val_if_fail (GDK_IS_SUBSURFACE (subsurface), FALSE);
+  g_return_val_if_fail (rect != NULL, FALSE);
+
+  return GDK_SUBSURFACE_GET_CLASS (subsurface)->get_background_rect (subsurface, rect);
+}
+
+/*< private >
+ * gdk_subsurface_get_bounds:
+ * @subsurface: a `GdkSubsurface`
+ * @bounds: (out caller-allocates): return location for the bounds
+ *
+ * Returns the bounds of the subsurface.
+ *
+ * The bounds are the union of the texture and background rects.
+ */
+void
+gdk_subsurface_get_bounds (GdkSubsurface   *subsurface,
+                           graphene_rect_t *bounds)
+{
+  graphene_rect_t background;
+
+  g_return_if_fail (GDK_IS_SUBSURFACE (subsurface));
+  g_return_if_fail (bounds != NULL);
+
+  gdk_subsurface_get_texture_rect (subsurface, bounds);
+  if (gdk_subsurface_get_background_rect (subsurface, &background))
+    graphene_rect_union (bounds, &background, bounds);
+}
@@ -47,42 +47,68 @@ struct _GdkSubsurface
  GdkSubsurface *sibling_below;
 };

+typedef enum {
+  GDK_TEXTURE_TRANSFORM_NORMAL,
+  GDK_TEXTURE_TRANSFORM_90,
+  GDK_TEXTURE_TRANSFORM_180,
+  GDK_TEXTURE_TRANSFORM_270,
+  GDK_TEXTURE_TRANSFORM_FLIPPED,
+  GDK_TEXTURE_TRANSFORM_FLIPPED_90,
+  GDK_TEXTURE_TRANSFORM_FLIPPED_180,
+  GDK_TEXTURE_TRANSFORM_FLIPPED_270,
+} GdkTextureTransform;

 struct _GdkSubsurfaceClass
 {
  GObjectClass parent_class;

-  gboolean     (* attach)          (GdkSubsurface         *subsurface,
-                                    GdkTexture            *texture,
-                                    const graphene_rect_t *source,
-                                    const graphene_rect_t *dest,
-                                    gboolean               above,
-                                    GdkSubsurface         *sibling);
-  void         (* detach)          (GdkSubsurface         *subsurface);
-  GdkTexture * (* get_texture)     (GdkSubsurface         *subsurface);
-  void         (* get_source)      (GdkSubsurface         *subsurface,
-                                    graphene_rect_t       *source);
-  void         (* get_dest)        (GdkSubsurface         *subsurface,
-                                    graphene_rect_t       *dest);
+  gboolean     (* attach)              (GdkSubsurface         *subsurface,
+                                        GdkTexture            *texture,
+                                        const graphene_rect_t *source,
+                                        const graphene_rect_t *dest,
+                                        GdkTextureTransform    transform,
+                                        const graphene_rect_t *bg,
+                                        gboolean               above,
+                                        GdkSubsurface         *sibling);
+  void         (* detach)              (GdkSubsurface         *subsurface);
+  GdkTexture * (* get_texture)         (GdkSubsurface         *subsurface);
+  void         (* get_source_rect)     (GdkSubsurface         *subsurface,
+                                        graphene_rect_t       *rect);
+  void         (* get_texture_rect)    (GdkSubsurface         *subsurface,
+                                        graphene_rect_t       *rect);
+  GdkTextureTransform
+               (* get_transform)       (GdkSubsurface         *subsurface);
+  gboolean     (* get_background_rect) (GdkSubsurface         *subsurface,
+                                        graphene_rect_t       *rect);
 };

-GType           gdk_subsurface_get_type        (void) G_GNUC_CONST;
+GType           gdk_subsurface_get_type            (void) G_GNUC_CONST;

-GdkSurface *    gdk_subsurface_get_parent      (GdkSubsurface         *subsurface);
-gboolean        gdk_subsurface_attach          (GdkSubsurface         *subsurface,
-                                                GdkTexture            *texture,
-                                                const graphene_rect_t *source,
-                                                const graphene_rect_t *dest,
-                                                gboolean               above,
-                                                GdkSubsurface         *sibling);
-void            gdk_subsurface_detach          (GdkSubsurface         *subsurface);
-GdkTexture *    gdk_subsurface_get_texture     (GdkSubsurface         *subsurface);
-void            gdk_subsurface_get_source      (GdkSubsurface         *subsurface,
-                                                graphene_rect_t       *source);
-void            gdk_subsurface_get_dest        (GdkSubsurface         *subsurface,
-                                               graphene_rect_t       *dest);
-gboolean        gdk_subsurface_is_above_parent (GdkSubsurface         *subsurface);
+GdkSurface *    gdk_subsurface_get_parent          (GdkSubsurface         *subsurface);

+gboolean        gdk_subsurface_attach              (GdkSubsurface         *subsurface,
+                                                    GdkTexture            *texture,
+                                                    const graphene_rect_t *source,
+                                                    const graphene_rect_t *dest,
+                                                    GdkTextureTransform    transform,
+                                                    const graphene_rect_t *background,
+                                                    gboolean               above,
+                                                    GdkSubsurface         *sibling);
+void            gdk_subsurface_detach              (GdkSubsurface         *subsurface);
+GdkTexture *    gdk_subsurface_get_texture         (GdkSubsurface         *subsurface);
+void            gdk_subsurface_get_source_rect     (GdkSubsurface         *subsurface,
+                                                    graphene_rect_t       *rect);
+void            gdk_subsurface_get_texture_rect    (GdkSubsurface         *subsurface,
+                                                    graphene_rect_t       *rect);
+gboolean        gdk_subsurface_is_above_parent     (GdkSubsurface         *subsurface);
+GdkSubsurface * gdk_subsurface_get_sibling         (GdkSubsurface         *subsurface,
+                                                    gboolean               above);
+GdkTextureTransform
+                gdk_subsurface_get_transform       (GdkSubsurface         *subsurface);
+gboolean        gdk_subsurface_get_background_rect (GdkSubsurface         *subsurface,
+                                                    graphene_rect_t       *rect);
+void            gdk_subsurface_get_bounds          (GdkSubsurface         *subsurface,
+                                                    graphene_rect_t       *bounds);

 G_END_DECLS

@@ -563,7 +563,7 @@ gdk_texture_new_from_bytes_internal (GBytes  *bytes,
 {
  if (gdk_is_png (bytes))
    {
-      return gdk_load_png (bytes, NULL, error);
+      return gdk_load_png (bytes, error);
    }
  else if (gdk_is_jpeg (bytes))
    {
@@ -57,6 +57,9 @@ static const GdkDebugKey gsk_vulkan_feature_keys[] = {
 *
 * Support for `GdkVulkanContext` is platform-specific and context creation
 * can fail, returning %NULL context.
+ *
+ * Deprecated: 4.14: GTK does not expose any Vulkan internals. This
+ *   struct is a leftover that was accidentally exposed.
 */

 typedef struct _GdkVulkanContextPrivate GdkVulkanContextPrivate;
@@ -1194,7 +1197,6 @@ gdk_vulkan_save_pipeline_cache (GdkDisplay *display)
  g_free (data);
  g_free (display->vk_pipeline_cache_etag);
  display->vk_pipeline_cache_etag = etag;
-  display->vk_pipeline_cache_size = size;

  return TRUE;
 }
@@ -127,18 +127,15 @@ png_simple_warning_callback (png_structp     png,
 }

 /* }}} */
-/* {{{ Public API */
+/* {{{ Public API */ 

 GdkTexture *
-gdk_load_png (GBytes      *bytes,
-              GHashTable  *options,
-              GError     **error)
+gdk_load_png (GBytes  *bytes,
+              GError **error)
 {
  png_io io;
  png_struct *png = NULL;
  png_info *info;
-  png_textp text;
-  int num_texts;
  guint width, height;
  gsize i, stride;
  int depth, color_type;
@@ -300,17 +297,6 @@ gdk_load_png (GBytes      *bytes,
  texture = gdk_memory_texture_new (width, height, format, out_bytes, stride);
  g_bytes_unref (out_bytes);

-  if (options && png_get_text (png, info, &text, &num_texts))
-    {
-      for (i = 0; i < num_texts; i++)
-        {
-          if (text->compression != -1)
-            continue;
-
-          g_hash_table_insert (options, g_strdup (text->key), g_strdup (text->text));
-        }
-    }
-
  g_free (row_pointers);
  png_destroy_read_struct (&png, &info, NULL);

@@ -23,7 +23,6 @@
 #define PNG_SIGNATURE "\x89PNG"

 GdkTexture *gdk_load_png        (GBytes         *bytes,
-                                 GHashTable     *options,
                                 GError        **error);

 GBytes     *gdk_save_png        (GdkTexture     *texture);
@@ -22,6 +22,7 @@
 #include <string.h>

 #include "gdkmacoscursor-private.h"
+#include "gdkcursorprivate.h"

@interface NSCursor()
 -(long long)_coreCursorType;
@@ -217,9 +218,25 @@ _gdk_macos_cursor_get_ns_cursor (GdkCursor *cursor)

      if (name == NULL)
        {
-          nscursor = create_cursor_from_texture (gdk_cursor_get_texture (cursor),
-                                                 gdk_cursor_get_hotspot_x (cursor),
-                                                 gdk_cursor_get_hotspot_y (cursor));
+          GdkTexture *texture;
+          int hotspot_x, hotspot_y;
+
+          texture = gdk_cursor_get_texture (cursor);
+          hotspot_x = gdk_cursor_get_hotspot_x (cursor);
+          hotspot_y = gdk_cursor_get_hotspot_y (cursor);
+
+          if (texture == NULL)
+            {
+              int size = 32; // FIXME
+              int width, height;
+
+              texture = gdk_cursor_get_texture_for_size (cursor, size, 1,
+                                                         &width, &height,
+                                                         &hotspot_x, &hotspot_y);
+            }
+
+          nscursor = create_cursor_from_texture (texture, hotspot_x, hotspot_y);
+
          return nscursor;
        }
    }
@@ -198,17 +198,8 @@ static void
 gdk_wayland_cairo_context_empty_frame (GdkDrawContext *draw_context)
 {
  GdkSurface *surface = gdk_draw_context_get_surface (draw_context);
-  GdkWaylandSurface *impl = GDK_WAYLAND_SURFACE (surface);

-  if (!impl->has_pending_subsurface_commits)
-    return;
-
-  gdk_wayland_surface_sync (surface);
-  gdk_wayland_surface_request_frame (surface);
-
-  gdk_profiler_add_mark (GDK_PROFILER_CURRENT_TIME, 0, "Wayland surface commit", NULL);
-  gdk_wayland_surface_commit (surface);
-  gdk_wayland_surface_notify_committed (surface);
+  gdk_wayland_surface_handle_empty_frame (surface);
 }

 static void
@@ -155,15 +155,19 @@ static const struct wl_buffer_listener buffer_listener = {
 struct wl_buffer *
 _gdk_wayland_cursor_get_buffer (GdkWaylandDisplay *display,
                                GdkCursor         *cursor,
-                                guint              desired_scale,
+                                double             desired_scale,
+                                gboolean           use_viewporter,
                                guint              image_index,
                                int               *hotspot_x,
                                int               *hotspot_y,
                                int               *width,
                                int               *height,
-                                int               *scale)
+                                double            *scale)
 {
  GdkTexture *texture;
+  int desired_scale_factor;
+
+  desired_scale_factor = (int) ceil (desired_scale);

  if (gdk_cursor_get_name (cursor))
    {
@@ -174,7 +178,7 @@ _gdk_wayland_cursor_get_buffer (GdkWaylandDisplay *display,

      c = gdk_wayland_cursor_load_for_name (display,
                                            _gdk_wayland_display_get_cursor_theme (display),
-                                            desired_scale,
+                                            desired_scale_factor,
                                            gdk_cursor_get_name (cursor));
      if (c && c->image_count > 0)
        {
@@ -191,7 +195,7 @@ _gdk_wayland_cursor_get_buffer (GdkWaylandDisplay *display,

          image = c->images[image_index];

-          cursor_scale = desired_scale;
+          cursor_scale = desired_scale_factor;
          if ((image->width % cursor_scale != 0) ||
              (image->height % cursor_scale != 0))
            {
@@ -211,7 +215,7 @@ _gdk_wayland_cursor_get_buffer (GdkWaylandDisplay *display,
          return wl_cursor_image_get_buffer (image);
        }
    }
-  else
+  else if (gdk_cursor_get_texture (cursor))
    {
      cairo_surface_t *surface;
      struct wl_buffer *buffer;
@@ -226,7 +230,7 @@ from_texture:
                                                            gdk_texture_get_width (texture),
                                                            gdk_texture_get_height (texture),
                                                            &GDK_FRACTIONAL_SCALE_INIT_INT (1));
-          
+
          gdk_texture_download (texture,
                                cairo_image_surface_get_data (surface),
                                cairo_image_surface_get_stride (surface));
@@ -250,11 +254,50 @@ from_texture:

      return buffer;
    }
+  else
+    {
+      if (!use_viewporter)
+        *scale = desired_scale_factor;
+      else
+        *scale = desired_scale;
+
+      texture = gdk_cursor_get_texture_for_size (cursor,
+                                                 display->cursor_theme_size,
+                                                 *scale,
+                                                 width,
+                                                 height,
+                                                 hotspot_x,
+                                                 hotspot_y);
+
+      if (texture)
+        {
+          cairo_surface_t *surface;
+          struct wl_buffer *buffer;
+
+          surface = gdk_wayland_display_create_shm_surface (display,
+                                                            gdk_texture_get_width (texture),
+                                                            gdk_texture_get_height (texture),
+                                                            &GDK_FRACTIONAL_SCALE_INIT_INT (1));
+
+          gdk_texture_download (texture,
+                                cairo_image_surface_get_data (surface),
+                                cairo_image_surface_get_stride (surface));
+          cairo_surface_mark_dirty (surface);
+
+          buffer = _gdk_wayland_shm_surface_get_wl_buffer (surface);
+          wl_buffer_add_listener (buffer, &buffer_listener, surface);
+
+          g_object_unref (texture);
+
+          return buffer;
+        }
+    }

  if (gdk_cursor_get_fallback (cursor))
    return _gdk_wayland_cursor_get_buffer (display,
-                                           gdk_cursor_get_fallback (cursor), 
+                                           gdk_cursor_get_fallback (cursor),
                                           desired_scale,
+                                           use_viewporter,
                                           image_index,
                                           hotspot_x, hotspot_y,
                                           width, height,
@@ -62,6 +62,7 @@ struct _GdkWaylandPointerData {
  uint32_t grab_time;

  struct wl_surface *pointer_surface;
+  struct wp_viewport *pointer_surface_viewport;
  guint cursor_is_default: 1;
  GdkCursor *cursor;
  guint cursor_timeout_id;
@@ -69,7 +70,7 @@ struct _GdkWaylandPointerData {
  guint cursor_image_delay;
  guint touchpad_event_sequence;

-  guint current_output_scale;
+  double current_output_scale;
  GSList *pointer_surface_outputs;

  /* Accumulated event data for a pointer frame */
@@ -260,18 +260,25 @@ gdk_wayland_device_update_surface_cursor (GdkDevice *device)
  GdkWaylandPointerData *pointer =
    gdk_wayland_device_get_pointer (wayland_device);
  struct wl_buffer *buffer;
-  int x, y, w, h, scale;
+  int x, y, w, h;
+  double scale;
  guint next_image_index, next_image_delay;
  gboolean retval = G_SOURCE_REMOVE;
  GdkWaylandTabletData *tablet;
+  gboolean use_viewport;

  tablet = gdk_wayland_seat_find_tablet (seat, device);

+  use_viewport = pointer->pointer_surface_viewport != NULL;
+  if (g_getenv ("NO_POINTER_VIEWPORT"))
+    use_viewport = FALSE;
+
  if (pointer->cursor)
    {
      buffer = _gdk_wayland_cursor_get_buffer (GDK_WAYLAND_DISPLAY (seat->display),
                                               pointer->cursor,
                                               pointer->current_output_scale,
+                                               use_viewport,
                                               pointer->cursor_image_index,
                                               &x, &y, &w, &h, &scale);
    }
@@ -310,7 +317,16 @@ gdk_wayland_device_update_surface_cursor (GdkDevice *device)
  if (buffer)
    {
      wl_surface_attach (pointer->pointer_surface, buffer, 0, 0);
-      if (wl_surface_get_version (pointer->pointer_surface) >= WL_SURFACE_SET_BUFFER_SCALE_SINCE_VERSION)
+      if (use_viewport)
+        {
+          wp_viewport_set_source (pointer->pointer_surface_viewport,
+                                  wl_fixed_from_int (0),
+                                  wl_fixed_from_int (0),
+                                  wl_fixed_from_double (w * scale),
+                                  wl_fixed_from_double (h * scale));
+          wp_viewport_set_destination (pointer->pointer_surface_viewport, w, h);
+        }
+      else if (wl_surface_get_version (pointer->pointer_surface) >= WL_SURFACE_SET_BUFFER_SCALE_SINCE_VERSION)
        wl_surface_set_buffer_scale (pointer->pointer_surface, scale);
      wl_surface_damage (pointer->pointer_surface,  0, 0, w, h);
      wl_surface_commit (pointer->pointer_surface);
@@ -105,6 +105,9 @@
 #endif

 static void _gdk_wayland_display_load_cursor_theme (GdkWaylandDisplay *display_wayland);
+static void _gdk_wayland_display_set_cursor_theme  (GdkDisplay        *display,
+                                                    const char        *name,
+                                                    int                size);

 G_DEFINE_TYPE (GdkWaylandDisplay, gdk_wayland_display, GDK_TYPE_DISPLAY)

@@ -441,7 +444,7 @@ gdk_registry_handle_global (void               *data,
    {
      display_wayland->compositor =
        wl_registry_bind (display_wayland->wl_registry, id,
-                          &wl_compositor_interface, MIN (version, 5));
+                          &wl_compositor_interface, MIN (version, 6));
    }
  else if (strcmp (interface, "wl_shm") == 0)
    {
@@ -610,7 +613,13 @@ gdk_registry_handle_global (void               *data,
                          &wp_presentation_interface,
                          MIN (version, 1));
    }
-
+  else if (strcmp (interface, wp_single_pixel_buffer_manager_v1_interface.name) == 0)
+    {
+      display_wayland->single_pixel_buffer =
+        wl_registry_bind (display_wayland->wl_registry, id,
+                          &wp_single_pixel_buffer_manager_v1_interface,
+                          MIN (version, 1));
+    }

  g_hash_table_insert (display_wayland->known_globals,
                       GUINT_TO_POINTER (id), g_strdup (interface));
@@ -821,6 +830,7 @@ gdk_wayland_display_dispose (GObject *object)
  g_clear_pointer (&display_wayland->fractional_scale, wp_fractional_scale_manager_v1_destroy);
  g_clear_pointer (&display_wayland->viewporter, wp_viewporter_destroy);
  g_clear_pointer (&display_wayland->presentation, wp_presentation_destroy);
+  g_clear_pointer (&display_wayland->single_pixel_buffer, wp_single_pixel_buffer_manager_v1_destroy);
  g_clear_pointer (&display_wayland->linux_dmabuf, zwp_linux_dmabuf_v1_destroy);
  g_clear_pointer (&display_wayland->linux_dmabuf_feedback, zwp_linux_dmabuf_feedback_v1_destroy);
  if (display_wayland->linux_dmabuf_formats)
@@ -1126,7 +1136,7 @@ G_GNUC_END_IGNORE_DEPRECATIONS
  display_class->get_monitors = gdk_wayland_display_get_monitors;
  display_class->get_monitor_at_surface = gdk_wayland_display_get_monitor_at_surface;
  display_class->get_setting = gdk_wayland_display_get_setting;
-  display_class->set_cursor_theme = gdk_wayland_display_set_cursor_theme;
+  display_class->set_cursor_theme = _gdk_wayland_display_set_cursor_theme;
 }

 static void
@@ -1199,11 +1209,22 @@ get_cursor_theme (GdkWaylandDisplay *display_wayland,
 * @size: the size to use for cursors
 *
 * Sets the cursor theme for the given @display.
+ *
+ * Deprecated: 4.16: Use the cursor-related properties of
+ *   [GtkSettings](../gtk4/class.Settings.html) to set the cursor theme
 */
 void
 gdk_wayland_display_set_cursor_theme (GdkDisplay *display,
                                      const char *name,
                                      int         size)
+{
+  _gdk_wayland_display_set_cursor_theme (display, name, size);
+}
+
+static void
+_gdk_wayland_display_set_cursor_theme (GdkDisplay *display,
+                                       const char *name,
+                                       int         size)
 {
  GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY(display);
  struct wl_cursor_theme *theme;
@@ -1272,7 +1293,7 @@ _gdk_wayland_display_load_cursor_theme (GdkWaylandDisplay *display_wayland)
  else
    name = "default";

-  gdk_wayland_display_set_cursor_theme (GDK_DISPLAY (display_wayland), name, size);
+  _gdk_wayland_display_set_cursor_theme (GDK_DISPLAY (display_wayland), name, size);
  g_value_unset (&v);

  gdk_profiler_end_mark (before, "Wayland cursor theme load", NULL);
@@ -1808,6 +1829,7 @@ static TranslationEntry translations[] = {
  { FALSE, "org.gnome.desktop.interface", "font-hinting", "gtk-xft-hinting", G_TYPE_NONE, { .i = 1 } },
  { FALSE, "org.gnome.desktop.interface", "font-hinting", "gtk-xft-hintstyle", G_TYPE_NONE, { .i = 1 } },
  { FALSE, "org.gnome.desktop.interface", "font-rgba-order", "gtk-xft-rgba", G_TYPE_NONE, { .i = 0 } },
+  { FALSE, "org.gnome.desktop.interface", "font-rendering", "gtk-font-rendering", G_TYPE_ENUM, { .i = 0 } },
  { FALSE, "org.gnome.settings-daemon.plugins.xsettings", "antialiasing", "gtk-xft-antialias", G_TYPE_NONE, { .i = 1 } },
  { FALSE, "org.gnome.settings-daemon.plugins.xsettings", "hinting", "gtk-xft-hinting", G_TYPE_NONE, { .i = 1 } },
  { FALSE, "org.gnome.settings-daemon.plugins.xsettings", "hinting", "gtk-xft-hintstyle", G_TYPE_NONE, { .i = 1 } },
@@ -1899,6 +1921,7 @@ apply_portal_setting (TranslationEntry *entry,
      entry->fallback.s = g_intern_string (g_variant_get_string (value, NULL));
      break;
    case G_TYPE_INT:
+    case G_TYPE_ENUM:
      entry->fallback.i = g_variant_get_int32 (value);
      break;
    case G_TYPE_BOOLEAN:
@@ -2148,6 +2171,9 @@ set_value_from_entry (GdkDisplay       *display,
        case G_TYPE_BOOLEAN:
          g_value_set_boolean (value, entry->fallback.b);
          break;
+        case G_TYPE_ENUM:
+          g_value_set_enum (value, entry->fallback.i);
+          break;
        case G_TYPE_NONE:
          if (g_str_equal (entry->setting, "gtk-fontconfig-timestamp"))
            g_value_set_uint (value, (guint)entry->fallback.i);
@@ -2198,6 +2224,11 @@ set_value_from_entry (GdkDisplay       *display,
                                  ? g_settings_get_boolean (settings, entry->key)
                                  : entry->fallback.b);
      break;
+    case G_TYPE_ENUM:
+      g_value_set_enum (value, settings && entry->valid
+                               ? g_settings_get_enum (settings, entry->key)
+                               : entry->fallback.i);
+      break;
    case G_TYPE_NONE:
      if (g_str_equal (entry->setting, "gtk-fontconfig-timestamp"))
        g_value_set_uint (value, (guint)entry->fallback.i);
@@ -40,6 +40,7 @@
 #include <gdk/wayland/fractional-scale-v1-client-protocol.h>
 #include <gdk/wayland/viewporter-client-protocol.h>
 #include <gdk/wayland/presentation-time-client-protocol.h>
+#include <gdk/wayland/single-pixel-buffer-v1-client-protocol.h>

 #include <glib.h>
 #include <gdk/gdkkeys.h>
@@ -127,6 +128,7 @@ struct _GdkWaylandDisplay
  struct wp_fractional_scale_manager_v1 *fractional_scale;
  struct wp_viewporter *viewporter;
  struct wp_presentation *presentation;
+  struct wp_single_pixel_buffer_manager_v1 *single_pixel_buffer;

  GList *async_roundtrips;

@@ -88,14 +88,7 @@ gdk_wayland_gl_context_empty_frame (GdkDrawContext *draw_context)
 {
  GdkSurface *surface = gdk_draw_context_get_surface (draw_context);

-  if (gdk_wayland_surface_needs_commit (surface))
-    {
-      gdk_wayland_surface_sync (surface);
-      gdk_wayland_surface_request_frame (surface);
-
-      gdk_wayland_surface_commit (surface);
-      gdk_wayland_surface_notify_committed (surface);
-    }
+  gdk_wayland_surface_handle_empty_frame (surface);
 }

 static void
@@ -116,13 +116,14 @@ void       gdk_wayland_display_system_bell (GdkDisplay *display,

 struct wl_buffer *_gdk_wayland_cursor_get_buffer (GdkWaylandDisplay *display,
                                                  GdkCursor         *cursor,
-                                                  guint              desired_scale,
+                                                  double             desired_scale,
+                                                  gboolean           use_viewporter,
                                                  guint              image_index,
                                                  int               *hotspot_x,
                                                  int               *hotspot_y,
                                                  int               *w,
                                                  int               *h,
-                                                  int               *scale);
+                                                  double            *scale);
 guint      _gdk_wayland_cursor_get_next_image_index (GdkWaylandDisplay *display,
                                                     GdkCursor         *cursor,
                                                     guint              scale,
@@ -130,7 +131,7 @@ guint      _gdk_wayland_cursor_get_next_image_index (GdkWaylandDisplay *display,
                                                     guint             *next_image_delay);

 void            gdk_wayland_surface_sync                   (GdkSurface           *surface);
-gboolean        gdk_wayland_surface_needs_commit           (GdkSurface           *surface);
+void            gdk_wayland_surface_handle_empty_frame     (GdkSurface           *surface);
 void            gdk_wayland_surface_commit                 (GdkSurface           *surface);
 void            gdk_wayland_surface_notify_committed       (GdkSurface           *surface);
 void            gdk_wayland_surface_request_frame          (GdkSurface           *surface);
@@ -781,8 +781,8 @@ pointer_handle_motion (void              *data,
    {
      double x, y;
      gdk_event_get_position (event, &x, &y);
-      g_message ("motion %f %f, seat %p state %d",
-                 x, y, seat, gdk_event_get_modifier_state (event));
+      gdk_debug_message ("motion %f %f, seat %p state %d",
+                         x, y, seat, gdk_event_get_modifier_state (event));
    }

  if (wl_seat_get_version (seat->wl_seat) < WL_POINTER_HAS_FRAME)
@@ -1664,7 +1664,7 @@ touch_handle_down (void              *data,
    {
      double xx, yy;
      gdk_event_get_position (event, &xx, &yy);
-      g_message ("touch begin %f %f", xx, yy);
+      gdk_debug_message ("touch begin %f %f", xx, yy);
    }

  _gdk_wayland_display_deliver_event (seat->display, event);
@@ -1699,7 +1699,7 @@ touch_handle_up (void            *data,
    {
      double x, y;
      gdk_event_get_position (event, &x, &y);
-      g_message ("touch end %f %f", x, y);
+      gdk_debug_message ("touch end %f %f", x, y);
    }

  _gdk_wayland_display_deliver_event (seat->display, event);
@@ -1747,7 +1747,7 @@ touch_handle_motion (void            *data,
    {
      double xx, yy;
      gdk_event_get_position (event, &xx, &yy);
-      g_message ("touch update %f %f", xx, yy);
+      gdk_debug_message ("touch update %f %f", xx, yy);
    }

  _gdk_wayland_display_deliver_event (seat->display, event);
@@ -1841,9 +1841,9 @@ emit_gesture_swipe_event (GdkWaylandSeat          *seat,
    {
      double x, y;
      gdk_event_get_position (event, &x, &y);
-      g_message ("swipe event %d, coords: %f %f, seat %p state %d",
-                 gdk_event_get_event_type (event), x, y, seat,
-                 gdk_event_get_modifier_state (event));
+      gdk_debug_message ("swipe event %d, coords: %f %f, seat %p state %d",
+                         gdk_event_get_event_type (event), x, y, seat,
+                         gdk_event_get_modifier_state (event));
    }

  _gdk_wayland_display_deliver_event (seat->display, event);
@@ -1936,10 +1936,10 @@ emit_gesture_pinch_event (GdkWaylandSeat          *seat,
    {
      double x, y;
      gdk_event_get_position (event, &x, &y);
-      g_message ("pinch event %d, coords: %f %f, seat %p state %d",
-                       gdk_event_get_event_type (event),
-                       x, y, seat,
-                       gdk_event_get_modifier_state (event));
+      gdk_debug_message ("pinch event %d, coords: %f %f, seat %p state %d",
+                         gdk_event_get_event_type (event),
+                         x, y, seat,
+                         gdk_event_get_modifier_state (event));
    }

  _gdk_wayland_display_deliver_event (seat->display, event);
@@ -2030,10 +2030,10 @@ emit_gesture_hold_event (GdkWaylandSeat          *seat,
    {
      double x, y;
      gdk_event_get_position (event, &x, &y);
-      g_message ("hold event %d, coords: %f %f, seat %p state %d",
-                 gdk_event_get_event_type (event),
-                 x, y, seat,
-                 gdk_event_get_modifier_state (event));
+      gdk_debug_message ("hold event %d, coords: %f %f, seat %p state %d",
+                         gdk_event_get_event_type (event),
+                         x, y, seat,
+                         gdk_event_get_modifier_state (event));
    }

  _gdk_wayland_display_deliver_event (seat->display, event);
@@ -3767,8 +3767,7 @@ pointer_surface_update_scale (GdkDevice *device)
  GdkWaylandDevice *wayland_device = GDK_WAYLAND_DEVICE (device);
  GdkWaylandPointerData *pointer =
    gdk_wayland_device_get_pointer (wayland_device);
-  GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (seat->display);
-  guint32 scale;
+  double scale;
  GSList *l;

  if (wl_surface_get_version (pointer->pointer_surface) < WL_SURFACE_SET_BUFFER_SCALE_SINCE_VERSION)
@@ -3783,8 +3782,8 @@ pointer_surface_update_scale (GdkDevice *device)
  scale = 1;
  for (l = pointer->pointer_surface_outputs; l != NULL; l = l->next)
    {
-      guint32 output_scale = gdk_wayland_display_get_output_scale (display_wayland, l->data);
-      scale = MAX (scale, output_scale);
+      GdkMonitor *monitor = gdk_wayland_display_get_monitor_for_output (seat->display, l->data);
+      scale = MAX (scale, gdk_monitor_get_scale (monitor));
    }

  if (pointer->current_output_scale == scale)
@@ -3879,6 +3878,7 @@ gdk_wayland_pointer_data_finalize (GdkWaylandPointerData *pointer)
  g_clear_object (&pointer->cursor);
  wl_surface_destroy (pointer->pointer_surface);
  g_slist_free (pointer->pointer_surface_outputs);
+  g_clear_pointer (&pointer->pointer_surface_viewport, wp_viewport_destroy);
 }

 static void
@@ -4242,6 +4242,9 @@ init_pointer_data (GdkWaylandPointerData *pointer_data,
  wl_surface_add_listener (pointer_data->pointer_surface,
                           &pointer_surface_listener,
                           logical_device);
+
+  if (display_wayland->viewporter)
+    pointer_data->pointer_surface_viewport = wp_viewporter_get_viewport (display_wayland->viewporter, pointer_data->pointer_surface);
 }

 void
@@ -2,6 +2,7 @@

 #include "gdksubsurfaceprivate.h"

+#include "wayland-client-protocol.h"

 typedef struct _GdkWaylandSubsurface GdkWaylandSubsurface;
 typedef struct _GdkWaylandSubsurfaceClass GdkWaylandSubsurfaceClass;
@@ -23,10 +24,17 @@ struct _GdkWaylandSubsurface
  GdkTexture *texture;
  cairo_rectangle_int_t dest;
  graphene_rect_t source;
+  enum wl_output_transform transform;

  struct wl_region *opaque_region;

  struct wl_callback *frame_callback;
+
+  struct wl_surface *bg_surface;
+  struct wl_subsurface *bg_subsurface;
+  struct wp_viewport *bg_viewport;
+  cairo_rectangle_int_t bg_rect;
+  gboolean bg_attached;
 };

 struct _GdkWaylandSubsurfaceClass
@@ -25,6 +25,8 @@
 #include "gdkdmabuftextureprivate.h"
 #include "gdksurface-wayland-private.h"
 #include "gdksubsurfaceprivate.h"
+#include "gdkdebugprivate.h"
+#include "gsk/gskrectprivate.h"

 #include "linux-dmabuf-unstable-v1-client-protocol.h"

@@ -46,10 +48,55 @@ gdk_wayland_subsurface_finalize (GObject *object)
  g_clear_pointer (&self->viewport, wp_viewport_destroy);
  g_clear_pointer (&self->subsurface, wl_subsurface_destroy);
  g_clear_pointer (&self->surface, wl_surface_destroy);
+  g_clear_pointer (&self->bg_viewport, wp_viewport_destroy);
+  g_clear_pointer (&self->bg_subsurface, wl_subsurface_destroy);
+  g_clear_pointer (&self->bg_surface, wl_surface_destroy);

  G_OBJECT_CLASS (gdk_wayland_subsurface_parent_class)->finalize (object);
 }

+static void
+shm_buffer_release (void             *data,
+                    struct wl_buffer *buffer)
+{
+  cairo_surface_t *surface = data;
+
+  /* Note: the wl_buffer is destroyed as cairo user data */
+  cairo_surface_destroy (surface);
+}
+
+static const struct wl_buffer_listener shm_buffer_listener = {
+  shm_buffer_release,
+};
+
+static struct wl_buffer *
+get_shm_wl_buffer (GdkWaylandSubsurface *self,
+                   GdkTexture           *texture)
+{
+  GdkWaylandDisplay *display = GDK_WAYLAND_DISPLAY (gdk_surface_get_display (GDK_SUBSURFACE (self)->parent));
+  int width, height;
+  cairo_surface_t *surface;
+  GdkTextureDownloader *downloader;
+  struct wl_buffer *buffer;
+
+  width = gdk_texture_get_width (texture);
+  height = gdk_texture_get_height (texture);
+  surface = gdk_wayland_display_create_shm_surface (display, width, height, &GDK_FRACTIONAL_SCALE_INIT_INT (1));
+
+  downloader = gdk_texture_downloader_new (texture);
+
+  gdk_texture_downloader_download_into (downloader,
+                                        cairo_image_surface_get_data (surface),
+                                        cairo_image_surface_get_stride (surface));
+
+  gdk_texture_downloader_free (downloader);
+
+  buffer = _gdk_wayland_shm_surface_get_wl_buffer (surface);
+  wl_buffer_add_listener (buffer, &shm_buffer_listener, surface);
+
+  return buffer;
+}
+
 static void
 dmabuf_buffer_release (void             *data,
                       struct wl_buffer *buffer)
@@ -96,8 +143,8 @@ static const struct zwp_linux_buffer_params_v1_listener params_listener = {
 };

 static struct wl_buffer *
-get_wl_buffer (GdkWaylandSubsurface *self,
-               GdkTexture           *texture)
+get_dmabuf_wl_buffer (GdkWaylandSubsurface *self,
+                      GdkTexture           *texture)
 {
  GdkWaylandDisplay *display = GDK_WAYLAND_DISPLAY (gdk_surface_get_display (GDK_SUBSURFACE (self)->parent));
  const GdkDmabuf *dmabuf;
@@ -148,23 +195,138 @@ get_wl_buffer (GdkWaylandSubsurface *self,
  return buffer;
 }

+static struct wl_buffer *
+get_wl_buffer (GdkWaylandSubsurface *self,
+               GdkTexture           *texture)
+{
+  GdkDisplay *display = gdk_surface_get_display (GDK_SUBSURFACE (self)->parent);
+  struct wl_buffer *buffer = NULL;
+
+  if (GDK_IS_DMABUF_TEXTURE (texture))
+    buffer = get_dmabuf_wl_buffer (self, texture);
+
+  if (GDK_DISPLAY_DEBUG_CHECK (display, FORCE_OFFLOAD))
+    {
+      if (!buffer)
+         buffer = get_shm_wl_buffer (self, texture);
+    }
+
+  return buffer;
+}
+
+static void
+sp_buffer_release (void             *data,
+                   struct wl_buffer *buffer)
+{
+  wl_buffer_destroy (buffer);
+}
+
+static const struct wl_buffer_listener sp_buffer_listener = {
+  sp_buffer_release,
+};
+
+static struct wl_buffer *
+get_sp_buffer (GdkWaylandSubsurface *self)
+{
+  GdkWaylandDisplay *display = GDK_WAYLAND_DISPLAY (gdk_surface_get_display (GDK_SUBSURFACE (self)->parent));
+  struct wl_buffer *buffer = NULL;
+
+  if (display->single_pixel_buffer)
+    buffer = wp_single_pixel_buffer_manager_v1_create_u32_rgba_buffer (display->single_pixel_buffer,
+                                                                       0, 0, 0, 0xffffffffU);
+
+  if (buffer)
+    wl_buffer_add_listener (buffer, &sp_buffer_listener, self);
+
+  return buffer;
+}
+
+static inline enum wl_output_transform
+gdk_texture_transform_to_wl (GdkTextureTransform transform)
+{
+  return (enum wl_output_transform) transform;
+}
+
+static inline GdkTextureTransform
+wl_output_transform_to_gdk (enum wl_output_transform transform)
+{
+  return (GdkTextureTransform) transform;
+}
+
+static void
+ensure_bg_surface (GdkWaylandSubsurface *self)
+{
+  GdkWaylandSurface *impl = GDK_WAYLAND_SURFACE (GDK_SUBSURFACE (self)->parent);
+  GdkDisplay *display = gdk_surface_get_display (GDK_SUBSURFACE (self)->parent);
+  GdkWaylandDisplay *disp = GDK_WAYLAND_DISPLAY (display);
+  struct wl_region *region;
+
+  if (self->bg_surface)
+    return;
+
+  self->bg_surface = wl_compositor_create_surface (disp->compositor);
+  self->bg_subsurface = wl_subcompositor_get_subsurface (disp->subcompositor,
+                                                         self->bg_surface,
+                                                         impl->display_server.wl_surface);
+  self->bg_viewport = wp_viewporter_get_viewport (disp->viewporter, self->bg_surface);
+
+  /* We are opaque */
+  wl_surface_set_opaque_region (self->bg_surface, self->opaque_region);
+
+  /* No input, please */
+  region = wl_compositor_create_region (disp->compositor);
+  wl_surface_set_input_region (self->bg_surface, region);
+  wl_region_destroy (region);
+}
+
+static inline gboolean
+scaled_rect_is_integral (const graphene_rect_t *rect,
+                         float                  scale,
+                         graphene_rect_t       *device_rect)
+{
+  cairo_rectangle_int_t device_int;
+
+  gsk_rect_scale (rect, scale, scale, device_rect);
+
+  device_int.x = device_rect->origin.x;
+  device_int.y = device_rect->origin.y;
+  device_int.width = device_rect->size.width;
+  device_int.height = device_rect->size.height;
+
+  return device_int.x == device_rect->origin.x &&
+         device_int.y == device_rect->origin.y &&
+         device_int.width == device_rect->size.width &&
+         device_int.height == device_rect->size.height;
+}
+
 static gboolean
 gdk_wayland_subsurface_attach (GdkSubsurface         *sub,
                               GdkTexture            *texture,
                               const graphene_rect_t *source,
                               const graphene_rect_t *dest,
+                               GdkTextureTransform    transform,
+                               const graphene_rect_t *background,
                               gboolean               above,
                               GdkSubsurface         *sibling)
 {
  GdkWaylandSubsurface *self = GDK_WAYLAND_SUBSURFACE (sub);
  GdkWaylandSurface *parent = GDK_WAYLAND_SURFACE (sub->parent);
+  GdkWaylandDisplay *display = GDK_WAYLAND_DISPLAY (gdk_surface_get_display (sub->parent));
  struct wl_buffer *buffer = NULL;
  gboolean result = FALSE;
  GdkWaylandSubsurface *sib = sibling ? GDK_WAYLAND_SUBSURFACE (sibling) : NULL;
  gboolean will_be_above;
  double scale;
  graphene_rect_t device_rect;
-  cairo_rectangle_int_t device_dest;
+  gboolean has_background;
+  enum wl_output_transform tf;
+  gboolean dest_changed = FALSE;
+  gboolean source_changed = FALSE;
+  gboolean transform_changed = FALSE;
+  gboolean stacking_changed = FALSE;
+  gboolean needs_commit = FALSE;
+  gboolean background_changed = FALSE;
+  gboolean needs_bg_commit = FALSE;

  if (sibling)
    will_be_above = sibling->above_parent;
@@ -177,69 +339,133 @@ gdk_wayland_subsurface_attach (GdkSubsurface         *sub,
      return FALSE;
    }

-  self->dest.x = dest->origin.x;
-  self->dest.y = dest->origin.y;
-  self->dest.width = dest->size.width;
-  self->dest.height = dest->size.height;
-
-  self->source.origin.x = source->origin.x;
-  self->source.origin.y = source->origin.y;
-  self->source.size.width = source->size.width;
-  self->source.size.height = source->size.height;
-
-  scale = gdk_fractional_scale_to_double (&parent->scale);
-
-  device_rect.origin.x = dest->origin.x * scale;
-  device_rect.origin.y = dest->origin.y * scale;
-  device_rect.size.width = dest->size.width * scale;
-  device_rect.size.height = dest->size.height * scale;
-
-  device_dest.x = device_rect.origin.x;
-  device_dest.y = device_rect.origin.y;
-  device_dest.width = device_rect.size.width;
-  device_dest.height = device_rect.size.height;
-
  if (self->dest.x != dest->origin.x ||
      self->dest.y != dest->origin.y ||
      self->dest.width != dest->size.width ||
      self->dest.height != dest->size.height)
+    {
+      self->dest.x = dest->origin.x;
+      self->dest.y = dest->origin.y;
+      self->dest.width = dest->size.width;
+      self->dest.height = dest->size.height;
+      dest_changed = TRUE;
+    }
+
+  if (!gsk_rect_equal (&self->source, source))
+    {
+      self->source.origin.x = source->origin.x;
+      self->source.origin.y = source->origin.y;
+      self->source.size.width = source->size.width;
+      self->source.size.height = source->size.height;
+      source_changed = TRUE;
+    }
+
+  tf = gdk_texture_transform_to_wl (transform);
+  if (self->transform != tf)
+    {
+      self->transform = tf;
+      transform_changed = TRUE;
+    }
+
+  if (sibling != gdk_subsurface_get_sibling (sub, above) ||
+      will_be_above != gdk_subsurface_is_above_parent (sub))
+    stacking_changed = TRUE;
+
+  if (self->texture == NULL)
+    {
+      dest_changed = TRUE;
+      source_changed = TRUE;
+      transform_changed = TRUE;
+      stacking_changed = TRUE;
+    }
+
+  scale = gdk_fractional_scale_to_double (&parent->scale);
+
+  if (background)
+    {
+      background_changed =
+          !self->bg_attached ||
+          self->bg_rect.x != background->origin.x ||
+          self->bg_rect.y != background->origin.y ||
+          self->bg_rect.width != background->size.width ||
+          self->bg_rect.height != background->size.height;
+      self->bg_rect.x = background->origin.x;
+      self->bg_rect.y = background->origin.y;
+      self->bg_rect.width = background->size.width;
+      self->bg_rect.height = background->size.height;
+    }
+  else
+    {
+      background_changed = self->bg_attached;
+      self->bg_rect.x = 0;
+      self->bg_rect.y = 0;
+      self->bg_rect.width = 0;
+      self->bg_rect.height = 0;
+    }
+
+  has_background = self->bg_rect.width > 0 && self->bg_rect.height > 0;
+
+  if (has_background)
+    ensure_bg_surface (self);
+
+  if (!scaled_rect_is_integral (dest, 1, &device_rect))
    {
      GDK_DISPLAY_DEBUG (gdk_surface_get_display (sub->parent), OFFLOAD,
-                         "Non-integer coordinates %g %g %g %g for %dx%d texture, hiding subsurface %p",
+                         "[%p] 🗙 Non-integral coordinates %g %g %g %g",
+                         self,
                         dest->origin.x, dest->origin.y,
-                         dest->size.width, dest->size.height,
-                         gdk_texture_get_width (texture),
-                         gdk_texture_get_height (texture),
-                         self);
+                         dest->size.width, dest->size.height);
    }
-  else if (device_dest.x != device_rect.origin.x ||
-           device_dest.y != device_rect.origin.y ||
-           device_dest.width != device_rect.size.width ||
-           device_dest.height != device_rect.size.height)
+  else if (!scaled_rect_is_integral (dest, scale, &device_rect))
    {
      GDK_DISPLAY_DEBUG (gdk_surface_get_display (sub->parent), OFFLOAD,
-                         "Non-integral device coordinates %g %g %g %g (fractional scale %.2f), hiding subsurface %p",
+                         "[%p] 🗙 Non-integral device coordinates %g %g %g %g (scale %.2f)",
+                         self,
                         device_rect.origin.x, device_rect.origin.y,
-                         device_rect.size.width, device_rect.size.width,
-                         scale,
-                         self);
+                         device_rect.size.width, device_rect.size.height,
+                         scale);
    }
-  else if (!GDK_IS_DMABUF_TEXTURE (texture))
+  else if (background && !scaled_rect_is_integral (background, 1, &device_rect))
    {
      GDK_DISPLAY_DEBUG (gdk_surface_get_display (sub->parent), OFFLOAD,
-                         "%dx%d %s is not a GdkDmabufTexture, hiding subsurface %p",
-                         gdk_texture_get_width (texture),
-                         gdk_texture_get_height (texture),
+                         "[%p] 🗙 Non-integral background coordinates %g %g %g %g",
+                         self,
+                         background->origin.x, background->origin.y,
+                         background->size.width, background->size.height);
+    }
+  else if (background && !scaled_rect_is_integral (background, scale, &device_rect))
+    {
+      GDK_DISPLAY_DEBUG (gdk_surface_get_display (sub->parent), OFFLOAD,
+                         "[%p] 🗙 Non-integral background device coordinates %g %g %g %g (scale %.2f)",
+                         self,
+                         device_rect.origin.x, device_rect.origin.y,
+                         device_rect.size.width, device_rect.size.height,
+                         scale);
+    }
+  else if (!GDK_IS_DMABUF_TEXTURE (texture) &&
+           !GDK_DISPLAY_DEBUG_CHECK (gdk_surface_get_display (sub->parent), FORCE_OFFLOAD))
+    {
+      GDK_DISPLAY_DEBUG (gdk_surface_get_display (sub->parent), OFFLOAD,
+                         "[%p] 🗙 %s (%dx%d) is not a GdkDmabufTexture",
+                         self,
                         G_OBJECT_TYPE_NAME (texture),
-                         self);
+                         gdk_texture_get_width (texture),
+                         gdk_texture_get_height (texture));
    }
  else if (!will_be_above &&
-           gdk_memory_format_alpha (gdk_texture_get_format (texture)) != GDK_MEMORY_ALPHA_OPAQUE)
+           gdk_memory_format_alpha (gdk_texture_get_format (texture)) != GDK_MEMORY_ALPHA_OPAQUE &&
+           !has_background)
    {
      GDK_DISPLAY_DEBUG (gdk_surface_get_display (sub->parent), OFFLOAD,
-                         "Cannot offload non-opaque %dx%d texture below, hiding subsurface %p",
+                         "[%p] 🗙 Non-opaque texture (%dx%d) below",
+                         self,
                         gdk_texture_get_width (texture),
-                         gdk_texture_get_height (texture),
+                         gdk_texture_get_height (texture));
+    }
+  else if (has_background && !display->single_pixel_buffer)
+    {
+      GDK_DISPLAY_DEBUG (gdk_surface_get_display (sub->parent), OFFLOAD,
+                         "[%p] 🗙 Texture has background, but no single-pixel buffer support",
                         self);
    }
  else
@@ -268,10 +494,13 @@ gdk_wayland_subsurface_attach (GdkSubsurface         *sub,
                }

              GDK_DISPLAY_DEBUG (gdk_surface_get_display (sub->parent), OFFLOAD,
-                                 "Attached %dx%d texture to subsurface %p at %d %d %d %d",
+                                 "[%p] %s Attaching texture (%dx%d) at %d %d %d %d",
+                                 self,
+                                 will_be_above
+                                   ? (has_background ? "▲" : "△")
+                                   : (has_background ? "▼" : "▽"),
                                 gdk_texture_get_width (texture),
                                 gdk_texture_get_height (texture),
-                                 self,
                                 self->dest.x, self->dest.y,
                                 self->dest.width, self->dest.height);
              result = TRUE;
@@ -279,35 +508,53 @@ gdk_wayland_subsurface_attach (GdkSubsurface         *sub,
          else
            {
              GDK_DISPLAY_DEBUG (gdk_surface_get_display (sub->parent), OFFLOAD,
-                                 "Compositor failed to create wl_buffer for %dx%d texture, hiding subsurface %p",
-                                 gdk_texture_get_width (texture),
-                                 gdk_texture_get_height (texture),
+                                 "[%p] 🗙 Failed to create wl_buffer",
                                 self);
            }
        }
      else
        {
+          if (dest_changed)
+            GDK_DISPLAY_DEBUG (gdk_surface_get_display (sub->parent), OFFLOAD,
+                               "[%p] %s Moving texture (%dx%d) to %d %d %d %d",
+                               self,
+                               will_be_above
+                                 ? (has_background ? "▲" : "△")
+                                 : (has_background ? "▼" : "▽"),
+                               gdk_texture_get_width (texture),
+                               gdk_texture_get_height (texture),
+                               self->dest.x, self->dest.y,
+                               self->dest.width, self->dest.height);
+
          buffer = NULL;
-          GDK_DISPLAY_DEBUG (gdk_surface_get_display (sub->parent), OFFLOAD,
-                             "Moved %dx%d texture in subsurface %p to %d %d %d %d",
-                             gdk_texture_get_width (texture),
-                             gdk_texture_get_height (texture),
-                             self,
-                             self->dest.x, self->dest.y,
-                             self->dest.width, self->dest.height);
          result = TRUE;
        }
    }

  if (result)
    {
-      wl_subsurface_set_position (self->subsurface, self->dest.x, self->dest.y);
-      wp_viewport_set_destination (self->viewport, self->dest.width, self->dest.height);
-      wp_viewport_set_source (self->viewport,
-                              wl_fixed_from_double (self->source.origin.x),
-                              wl_fixed_from_double (self->source.origin.y),
-                              wl_fixed_from_double (self->source.size.width),
-                              wl_fixed_from_double (self->source.size.height));
+      if (transform_changed)
+        {
+          wl_surface_set_buffer_transform (self->surface, self->transform);
+          needs_commit = TRUE;
+        }
+
+      if (dest_changed)
+        {
+          wl_subsurface_set_position (self->subsurface, self->dest.x, self->dest.y);
+          wp_viewport_set_destination (self->viewport, self->dest.width, self->dest.height);
+          needs_commit = TRUE;
+        }
+
+      if (source_changed)
+        {
+          wp_viewport_set_source (self->viewport,
+                                  wl_fixed_from_double (self->source.origin.x),
+                                  wl_fixed_from_double (self->source.origin.y),
+                                  wl_fixed_from_double (self->source.size.width),
+                                  wl_fixed_from_double (self->source.size.height));
+          needs_commit = TRUE;
+        }

      if (buffer)
        {
@@ -316,39 +563,95 @@ gdk_wayland_subsurface_attach (GdkSubsurface         *sub,
                                    0, 0,
                                    gdk_texture_get_width (texture),
                                    gdk_texture_get_height (texture));
+          needs_commit = TRUE;
+        }

+      if (has_background)
+        {
+          if (background_changed)
+            {
+              wl_subsurface_set_position (self->bg_subsurface, self->bg_rect.x, self->bg_rect.y);
+              wp_viewport_set_destination (self->bg_viewport, self->bg_rect.width, self->bg_rect.height);
+              needs_bg_commit = TRUE;
+            }
+
+          if (!self->bg_attached)
+            {
+              self->bg_attached = TRUE;
+
+              wp_viewport_set_source (self->bg_viewport,
+                                      wl_fixed_from_int (0),
+                                      wl_fixed_from_int (0),
+                                      wl_fixed_from_int (1),
+                                      wl_fixed_from_int (1));
+              wl_surface_attach (self->bg_surface, get_sp_buffer (self), 0, 0);
+              wl_surface_damage_buffer (self->bg_surface, 0, 0, 1, 1);
+              needs_bg_commit = TRUE;
+            }
+        }
+      else
+        {
+          if (self->bg_attached)
+            {
+              self->bg_attached = FALSE;
+              wl_surface_attach (self->bg_surface, NULL, 0, 0);
+              needs_bg_commit = TRUE;
+            }
        }

      result = TRUE;
    }
  else
    {
-      g_set_object (&self->texture, NULL);
+      if (g_set_object (&self->texture, NULL))
+        {
+          wl_surface_attach (self->surface, NULL, 0, 0);
+          needs_commit = TRUE;
+        }

-      wl_surface_attach (self->surface, NULL, 0, 0);
+      if (self->bg_attached)
+        {
+          self->bg_attached = FALSE;
+          wl_surface_attach (self->bg_surface, NULL, 0, 0);
+          needs_bg_commit = TRUE;
+        }
    }

-  if (sib)
+  if (stacking_changed)
    {
-      if (above)
-        wl_subsurface_place_above (self->subsurface, sib->surface);
+      if (sib)
+        {
+          if (above)
+            wl_subsurface_place_above (self->subsurface, sib->surface);
+          else
+            wl_subsurface_place_below (self->subsurface, sib->surface);
+        }
      else
-        wl_subsurface_place_below (self->subsurface, sib->surface);
-    }
-  else
-    {
-      if (above)
-        wl_subsurface_place_above (self->subsurface,
-                                   GDK_WAYLAND_SURFACE (sub->parent)->display_server.wl_surface);
-      else
-        wl_subsurface_place_below (self->subsurface,
-                                   GDK_WAYLAND_SURFACE (sub->parent)->display_server.wl_surface);
+        {
+          if (above)
+            wl_subsurface_place_above (self->subsurface,
+                                       GDK_WAYLAND_SURFACE (sub->parent)->display_server.wl_surface);
+          else
+            wl_subsurface_place_below (self->subsurface,
+                                       GDK_WAYLAND_SURFACE (sub->parent)->display_server.wl_surface);
+        }
+      needs_commit = TRUE;
+
+      if (self->bg_attached)
+        {
+          wl_subsurface_place_below (self->bg_subsurface, self->surface);
+          needs_bg_commit = TRUE;
+        }
    }

-  wl_surface_commit (self->surface);
+  if (needs_commit)
+    wl_surface_commit (self->surface);

-  ((GdkWaylandSurface *)sub->parent)->has_pending_subsurface_commits = TRUE;
-  GDK_WAYLAND_SURFACE (sub->parent)->opaque_region_dirty = TRUE;
+  if (needs_bg_commit)
+    wl_surface_commit (self->bg_surface);
+
+  ((GdkWaylandSurface *)sub->parent)->has_pending_subsurface_commits = needs_commit || needs_bg_commit;
+  GDK_WAYLAND_SURFACE (sub->parent)->opaque_region_dirty = stacking_changed || dest_changed || background_changed;

  return result;
 }
@@ -360,7 +663,7 @@ gdk_wayland_subsurface_detach (GdkSubsurface *sub)

  if (sub->parent == NULL)
    {
-      g_warning ("Can't draw to destroyed subsurface %p", self);
+      g_warning ("Can't detach from destroyed subsurface %p", self);
      return;
    }

@@ -369,6 +672,13 @@ gdk_wayland_subsurface_detach (GdkSubsurface *sub)
  wl_surface_set_opaque_region (self->surface, self->opaque_region);
  wl_surface_commit (self->surface);

+  if (self->bg_attached)
+    {
+      wl_surface_attach (self->bg_surface, NULL, 0, 0);
+      wl_surface_commit (self->bg_surface);
+      self->bg_attached = FALSE;
+    }
+
  ((GdkWaylandSurface *)sub->parent)->has_pending_subsurface_commits = TRUE;
  GDK_WAYLAND_SURFACE (sub->parent)->opaque_region_dirty = TRUE;
 }
@@ -382,27 +692,49 @@ gdk_wayland_subsurface_get_texture (GdkSubsurface *sub)
 }

 static void
-gdk_wayland_subsurface_get_dest (GdkSubsurface   *sub,
-                                 graphene_rect_t *dest)
+gdk_wayland_subsurface_get_texture_rect (GdkSubsurface   *sub,
+                                         graphene_rect_t *rect)
 {
  GdkWaylandSubsurface *self = GDK_WAYLAND_SUBSURFACE (sub);

-  dest->origin.x = self->dest.x;
-  dest->origin.y = self->dest.y;
-  dest->size.width = self->dest.width;
-  dest->size.height = self->dest.height;
+  rect->origin.x = self->dest.x;
+  rect->origin.y = self->dest.y;
+  rect->size.width = self->dest.width;
+  rect->size.height = self->dest.height;
 }

 static void
-gdk_wayland_subsurface_get_source (GdkSubsurface   *sub,
-                                   graphene_rect_t *source)
+gdk_wayland_subsurface_get_source_rect (GdkSubsurface   *sub,
+                                        graphene_rect_t *rect)
 {
  GdkWaylandSubsurface *self = GDK_WAYLAND_SUBSURFACE (sub);

-  source->origin.x = self->source.origin.x;
-  source->origin.y = self->source.origin.y;
-  source->size.width = self->source.size.width;
-  source->size.height = self->source.size.height;
+  rect->origin.x = self->source.origin.x;
+  rect->origin.y = self->source.origin.y;
+  rect->size.width = self->source.size.width;
+  rect->size.height = self->source.size.height;
+}
+
+static GdkTextureTransform
+gdk_wayland_subsurface_get_transform (GdkSubsurface *sub)
+{
+  GdkWaylandSubsurface *self = GDK_WAYLAND_SUBSURFACE (sub);
+
+  return wl_output_transform_to_gdk (self->transform);
+}
+
+static gboolean
+gdk_wayland_subsurface_get_background_rect (GdkSubsurface   *sub,
+                                            graphene_rect_t *rect)
+{
+  GdkWaylandSubsurface *self = GDK_WAYLAND_SUBSURFACE (sub);
+
+  rect->origin.x = self->bg_rect.x;
+  rect->origin.y = self->bg_rect.y;
+  rect->size.width = self->bg_rect.width;
+  rect->size.height = self->bg_rect.height;
+
+  return rect->size.width > 0 && rect->size.height > 0;
 }

 static void
@@ -416,8 +748,10 @@ gdk_wayland_subsurface_class_init (GdkWaylandSubsurfaceClass *class)
  subsurface_class->attach = gdk_wayland_subsurface_attach;
  subsurface_class->detach = gdk_wayland_subsurface_detach;
  subsurface_class->get_texture = gdk_wayland_subsurface_get_texture;
-  subsurface_class->get_source = gdk_wayland_subsurface_get_source;
-  subsurface_class->get_dest = gdk_wayland_subsurface_get_dest;
+  subsurface_class->get_source_rect = gdk_wayland_subsurface_get_source_rect;
+  subsurface_class->get_texture_rect = gdk_wayland_subsurface_get_texture_rect;
+  subsurface_class->get_transform = gdk_wayland_subsurface_get_transform;
+  subsurface_class->get_background_rect = gdk_wayland_subsurface_get_background_rect;
 };

 static void
@@ -54,6 +54,8 @@
 #include "linux-dmabuf-unstable-v1-client-protocol.h"
 #include "presentation-time-client-protocol.h"

+#include "gsk/gskrectprivate.h"
+

 /**
 * GdkWaylandSurface:
@@ -657,6 +659,7 @@ static void
 gdk_wayland_surface_sync_opaque_region (GdkSurface *surface)
 {
  GdkWaylandSurface *impl = GDK_WAYLAND_SURFACE (surface);
+  GdkWaylandDisplay *display = GDK_WAYLAND_DISPLAY (gdk_surface_get_display (surface));
  struct wl_region *wl_region = NULL;

  if (!impl->display_server.wl_surface)
@@ -679,16 +682,21 @@ gdk_wayland_surface_sync_opaque_region (GdkSurface *surface)
                continue;

              if (sub->texture != NULL)
-                cairo_region_subtract_rectangle (region, &sub->dest);
+                {
+                  graphene_rect_t bounds;
+                  cairo_rectangle_int_t rect;
+
+                  gdk_subsurface_get_bounds (subsurface, &bounds);
+                  gsk_rect_to_cairo_grow (&bounds, &rect);
+                  cairo_region_subtract_rectangle (region, &rect);
+                }
            }

-          wl_region = wl_region_from_cairo_region (GDK_WAYLAND_DISPLAY (gdk_surface_get_display (surface)),
-                                                   region);
+          wl_region = wl_region_from_cairo_region (display, region);
          cairo_region_destroy (region);
        }
      else
-        wl_region = wl_region_from_cairo_region (GDK_WAYLAND_DISPLAY (gdk_surface_get_display (surface)),
-                                                 impl->opaque_region);
+        wl_region = wl_region_from_cairo_region (display, impl->opaque_region);
    }

  wl_surface_set_opaque_region (impl->display_server.wl_surface, wl_region);
@@ -775,7 +783,7 @@ gdk_wayland_surface_sync (GdkSurface *surface)
  gdk_wayland_surface_sync_viewport (surface);
 }

-gboolean
+static gboolean
 gdk_wayland_surface_needs_commit (GdkSurface *surface)
 {
  GdkWaylandSurface *self = GDK_WAYLAND_SURFACE (surface);
@@ -787,6 +795,20 @@ gdk_wayland_surface_needs_commit (GdkSurface *surface)
         self->viewport_dirty;
 }

+void
+gdk_wayland_surface_handle_empty_frame (GdkSurface *surface)
+{
+  if (!gdk_wayland_surface_needs_commit (surface))
+    return;
+
+  gdk_wayland_surface_sync (surface);
+  gdk_wayland_surface_request_frame (surface);
+
+  gdk_profiler_add_mark (GDK_PROFILER_CURRENT_TIME, 0, "Wayland surface commit", NULL);
+  gdk_wayland_surface_commit (surface);
+  gdk_wayland_surface_notify_committed (surface);
+}
+
 static void
 gdk_wayland_surface_fractional_scale_preferred_scale_cb (void *data,
                                                         struct wp_fractional_scale_v1 *fractional_scale,
@@ -799,6 +821,11 @@ gdk_wayland_surface_fractional_scale_preferred_scale_cb (void *data,
  gdk_wayland_surface_update_size (surface,
                                   surface->width, surface->height,
                                   &GDK_FRACTIONAL_SCALE_INIT (scale));
+
+  GDK_DISPLAY_DEBUG (gdk_surface_get_display (surface), EVENTS,
+                     "preferred fractional scale, surface %p scale %f",
+                     surface,
+                     gdk_fractional_scale_to_double (&GDK_FRACTIONAL_SCALE_INIT (scale)));
 }

 static const struct wp_fractional_scale_v1_listener fractional_scale_listener = {
@@ -815,8 +842,8 @@ surface_enter (void              *data,
  GdkDisplay *display = gdk_surface_get_display (surface);
  GdkMonitor *monitor;

-  GDK_DISPLAY_DEBUG(gdk_surface_get_display (surface), EVENTS,
-                    "surface enter, surface %p output %p", surface, output);
+  GDK_DISPLAY_DEBUG (gdk_surface_get_display (surface), EVENTS,
+                     "surface enter, surface %p output %p", surface, output);

  impl->display_server.outputs = g_slist_prepend (impl->display_server.outputs, output);

@@ -848,9 +875,38 @@ surface_leave (void              *data,
  gdk_surface_leave_monitor (surface, monitor);
 }

+static void
+surface_preferred_buffer_scale (void              *data,
+                                struct wl_surface *wl_surface,
+                                int32_t            factor)
+{
+  GdkSurface *surface = GDK_SURFACE (data);
+
+  GDK_DISPLAY_DEBUG (gdk_surface_get_display (surface), EVENTS,
+                     "preferred buffer scale, surface %p scale %d",
+                     surface, factor);
+}
+
+static void
+surface_preferred_buffer_transform (void              *data,
+                                    struct wl_surface *wl_surface,
+                                    uint32_t           transform)
+{
+  GdkSurface *surface = GDK_SURFACE (data);
+  const char *transform_name[] = {
+    "normal", "90", "180", "270", "flipped", "flipped-90", "flipped-180", "flipped-270"
+  };
+
+  GDK_DISPLAY_DEBUG (gdk_surface_get_display (surface), EVENTS,
+                     "preferred buffer transform, surface %p transform %s",
+                     surface, transform_name[transform]);
+}
+
 static const struct wl_surface_listener surface_listener = {
  surface_enter,
-  surface_leave
+  surface_leave,
+  surface_preferred_buffer_scale,
+  surface_preferred_buffer_transform,
 };

 static void
@@ -77,16 +77,8 @@ static void
 gdk_vulkan_context_wayland_empty_frame (GdkDrawContext *context)
 {
  GdkSurface *surface = gdk_draw_context_get_surface (GDK_DRAW_CONTEXT (context));
-  GdkWaylandSurface *impl = GDK_WAYLAND_SURFACE (surface);

-  if (!impl->has_pending_subsurface_commits)
-    return;
-
-  gdk_wayland_surface_sync (surface);
-  gdk_wayland_surface_request_frame (surface);
-
-  gdk_wayland_surface_commit (surface);
-  gdk_wayland_surface_notify_committed (surface);
+  gdk_wayland_surface_handle_empty_frame (surface);
 }

 static void
@@ -48,7 +48,7 @@ GDK_AVAILABLE_IN_ALL
 struct wl_display      *gdk_wayland_display_get_wl_display      (GdkDisplay *display);
 GDK_AVAILABLE_IN_ALL
 struct wl_compositor   *gdk_wayland_display_get_wl_compositor   (GdkDisplay *display);
-GDK_AVAILABLE_IN_ALL
+GDK_DEPRECATED_IN_4_16
 void                    gdk_wayland_display_set_cursor_theme    (GdkDisplay  *display,
                                                                 const char *name,
                                                                 int          size);
@@ -60,7 +60,7 @@ void                    gdk_wayland_display_set_startup_notification_id (GdkDisp

 GDK_AVAILABLE_IN_ALL
 gboolean                gdk_wayland_display_query_registry      (GdkDisplay  *display,
-								 const char *global);
+                                                                 const char *global);

 GDK_AVAILABLE_IN_4_4
 gpointer                gdk_wayland_display_get_egl_display     (GdkDisplay  *display);
@@ -47,73 +47,36 @@ gdk_wayland_deps = [
  wlegldep,
 ]

-wayland_scanner = find_program('wayland-scanner')
-
-# Format:
-#  - protocol name
-#  - protocol stability ('private', 'stable' or 'unstable')
-#  - protocol version (if stability is 'unstable')
+wlmod = import('unstable-wayland')
 proto_sources = [
-  ['gtk-shell', 'private', ],
-  ['primary-selection', 'unstable', 'v1', ],
-  ['pointer-gestures', 'unstable', 'v1', ],
-  ['viewporter', 'stable', ],
-  ['xdg-shell', 'unstable', 'v6', ],
-  ['xdg-shell', 'stable', ],
-  ['xdg-foreign', 'unstable', 'v1', ],
-  ['xdg-foreign', 'unstable', 'v2', ],
-  ['tablet', 'unstable', 'v2', ],
-  ['keyboard-shortcuts-inhibit', 'unstable', 'v1', ],
-  ['server-decoration', 'private' ],
-  ['xdg-output', 'unstable', 'v1', ],
-  ['idle-inhibit', 'unstable', 'v1', ],
-  ['xdg-activation', 'staging', 'v1', ],
-  ['fractional-scale', 'staging', 'v1', ],
-  ['linux-dmabuf', 'unstable', 'v1', ],
-  ['presentation-time', 'stable', 'v1', ],
+  'protocol/gtk-shell.xml',
+  'protocol/server-decoration.xml',
+  wlmod.find_protocol('primary-selection', state: 'unstable', version: 1),
+  wlmod.find_protocol('pointer-gestures', state: 'unstable', version: 1),
+  wlmod.find_protocol('viewporter', state: 'stable'),
+  wlmod.find_protocol('xdg-shell', state: 'unstable', version: 6),
+  wlmod.find_protocol('xdg-shell', state: 'stable'),
+  wlmod.find_protocol('xdg-foreign', state: 'unstable', version: 1),
+  wlmod.find_protocol('xdg-foreign', state: 'unstable', version: 2),
+  wlmod.find_protocol('tablet', state: 'unstable', version: 2),
+  wlmod.find_protocol('keyboard-shortcuts-inhibit', state: 'unstable', version: 1),
+  wlmod.find_protocol('xdg-output', state: 'unstable', version: 1),
+  wlmod.find_protocol('idle-inhibit', state: 'unstable', version: 1),
+  wlmod.find_protocol('xdg-activation', state: 'staging', version: 1),
+  wlmod.find_protocol('fractional-scale', state: 'staging', version: 1),
+  wlmod.find_protocol('linux-dmabuf', state: 'unstable', version: 1),
+  wlmod.find_protocol('presentation-time', state: 'stable'),
+  wlmod.find_protocol('single-pixel-buffer', state: 'staging', version: 1),
 ]

 gdk_wayland_gen_headers = []

 foreach p: proto_sources
-  proto_name = p.get(0)
-  proto_stability = p.get(1)
-
-  if proto_stability == 'stable'
-    output_base = proto_name
-    input = files(join_paths(wlproto_dir, '@0@/@1@/@2@.xml'.format(proto_stability, proto_name, output_base)))
-  elif proto_stability == 'staging'
-    proto_version = p.get(2)
-    output_base = '@0@-@1@'.format(proto_name, proto_version)
-    input = files(join_paths(wlproto_dir, '@0@/@1@/@2@.xml'.format(proto_stability, proto_name, output_base)))
-  elif proto_stability == 'private'
-    output_base = proto_name
-    input = files('protocol/@0@.xml'.format(proto_name))
-  else
-    proto_version = p.get(2)
-    output_base = '@0@-@1@-@2@'.format(proto_name, proto_stability, proto_version)
-    input = files(join_paths(wlproto_dir, '@0@/@1@/@2@.xml'.format(proto_stability, proto_name, output_base)))
-  endif
-
-  gdk_wayland_gen_headers += custom_target('@0@ client header'.format(output_base),
-    input: input,
-    output: '@0@-client-protocol.h'.format(output_base),
-    command: [
-      wayland_scanner,
-      'client-header',
-      '@INPUT@', '@OUTPUT@',
-    ],
-  )
-
-  gdk_wayland_sources += custom_target('@0@ source'.format(output_base),
-    input: input,
-    output: '@0@-protocol.c'.format(output_base),
-    command: [
-      wayland_scanner,
-      'private-code',
-      '@INPUT@', '@OUTPUT@',
-    ],
-  )
+  # Returns a list [.c, .h]
+  gen = wlmod.scan_xml(p)
+  assert(gen.length() == 2)
+  gdk_wayland_sources += gen[0]
+  gdk_wayland_gen_headers += gen[1]
 endforeach

 libgdk_wayland = static_library('gdk-wayland',
@@ -21,6 +21,7 @@
 #include "gdkcursor.h"
 #include "gdkwin32.h"
 #include "gdktextureprivate.h"
+#include "gdkcursorprivate.h"

 #include "gdkdisplay-win32.h"

@@ -1481,6 +1482,7 @@ gdk_win32_display_get_win32hcursor (GdkWin32Display *display,
  GdkWin32Display *win32_display = GDK_WIN32_DISPLAY (display);
  GdkWin32HCursor *win32hcursor;
  const char      *cursor_name;
+  GdkTexture      *texture;
  GdkCursor       *fallback;

  g_return_val_if_fail (cursor != NULL, NULL);
@@ -1494,14 +1496,32 @@ gdk_win32_display_get_win32hcursor (GdkWin32Display *display,
    return win32hcursor;

  cursor_name = gdk_cursor_get_name (cursor);
+  texture = gdk_cursor_get_texture (cursor);

  if (cursor_name)
    win32hcursor = gdk_win32hcursor_create_for_name (display, cursor_name);
-  else
+  else if (texture)
    win32hcursor = gdk_win32hcursor_create_for_texture (display,
-                                                        gdk_cursor_get_texture (cursor),
+                                                        texture,
                                                        gdk_cursor_get_hotspot_x (cursor),
                                                        gdk_cursor_get_hotspot_y (cursor));
+  else
+    {
+      int size = display->cursor_theme_size;
+      int width, height, hotspot_x, hotspot_y;
+
+      texture = gdk_cursor_get_texture_for_size (cursor, size, 1,
+                                                 &width, &height,
+                                                 &hotspot_x, &hotspot_y);
+      if (texture)
+        {
+          win32hcursor = gdk_win32hcursor_create_for_texture (display,
+                                                              texture,
+                                                              hotspot_x,
+                                                              hotspot_y);
+          g_object_unref (texture);
+        }
+    }

  if (win32hcursor != NULL)
    {
@@ -274,11 +274,22 @@ gdk_x11_cursor_create_for_name (GdkDisplay  *display,
 * will have to be handled by the application (GTK applications can learn
 * about cursor theme changes by listening for change notification
 * for the corresponding `GtkSetting`).
+ *
+ * Deprecated: 4.16: Use the cursor-related properties of
+ *   [GtkSettings](../gtk4/class.Settings.html) to set the cursor theme
 */
 void
 gdk_x11_display_set_cursor_theme (GdkDisplay  *display,
                                  const char *theme,
                                  const int    size)
+{
+  _gdk_x11_display_set_cursor_theme (display, theme, size);
+}
+
+void
+_gdk_x11_display_set_cursor_theme (GdkDisplay  *display,
+                                   const char *theme,
+                                   const int    size)
 {
 #if defined(HAVE_XCURSOR) && defined(HAVE_XFIXES) && XFIXES_MAJOR >= 2
  GdkX11Screen *x11_screen;
@@ -370,11 +381,33 @@ gdk_x11_display_get_xcursor (GdkDisplay *display,

  if (gdk_cursor_get_name (cursor))
    xcursor = gdk_x11_cursor_create_for_name (display, gdk_cursor_get_name (cursor));
-  else
+  else if (gdk_cursor_get_texture (cursor))
    xcursor = gdk_x11_cursor_create_for_texture (display,
                                                 gdk_cursor_get_texture (cursor),
                                                 gdk_cursor_get_hotspot_x (cursor),
                                                 gdk_cursor_get_hotspot_y (cursor));
+  else
+    {
+      int size;
+      GdkTexture *texture;
+      int width, height;
+      int hotspot_x, hotspot_y;
+
+      size = XcursorGetDefaultSize (GDK_DISPLAY_XDISPLAY (display));
+
+      texture = gdk_cursor_get_texture_for_size  (cursor, size, 1,
+                                                  &width, &height,
+                                                  &hotspot_x, &hotspot_y);
+
+      if (texture)
+        {
+          xcursor = gdk_x11_cursor_create_for_texture (display,
+                                                       texture,
+                                                       hotspot_x,
+                                                       hotspot_y);
+          g_object_unref (texture);
+        }
+    }

  if (xcursor != None)
    {
@@ -3078,7 +3078,7 @@ G_GNUC_END_IGNORE_DEPRECATIONS

  display_class->get_monitors = gdk_x11_display_get_monitors;
  display_class->get_setting = gdk_x11_display_get_setting;
-  display_class->set_cursor_theme = gdk_x11_display_set_cursor_theme;
+  display_class->set_cursor_theme = _gdk_x11_display_set_cursor_theme;

  class->xevent = gdk_event_source_xevent;

@@ -206,6 +206,10 @@ GdkFilterReturn
 gdk_surface_cache_shape_filter (const XEvent *xevent,
                                gpointer      data);

+void _gdk_x11_display_set_cursor_theme (GdkDisplay  *display,
+                                        const char *theme,
+                                        const int    size);
+
 void _gdk_x11_cursor_display_finalize (GdkDisplay *display);

 void _gdk_x11_surface_register_dnd (GdkSurface *window);
@@ -68,11 +68,6 @@ gdk_x11_vulkan_context_end_frame (GdkDrawContext *context,
  GDK_DRAW_CONTEXT_CLASS (gdk_x11_vulkan_context_parent_class)->end_frame (context, painted);
 }

-static void
-gdk_x11_vulkan_context_empty_frame (GdkDrawContext *draw_context)
-{
-}
-
 static void
 gdk_x11_vulkan_context_class_init (GdkX11VulkanContextClass *klass)
 {
@@ -80,7 +75,6 @@ gdk_x11_vulkan_context_class_init (GdkX11VulkanContextClass *klass)
  GdkDrawContextClass *draw_context_class = GDK_DRAW_CONTEXT_CLASS (klass);

  draw_context_class->end_frame = gdk_x11_vulkan_context_end_frame;
-  draw_context_class->empty_frame = gdk_x11_vulkan_context_empty_frame;

  context_class->create_surface = gdk_x11_vulkan_context_create_surface;
 }
@@ -88,7 +88,7 @@ GDK_AVAILABLE_IN_ALL
 void          gdk_x11_display_set_program_class                   (GdkDisplay  *display,
                                                                   const char  *program_class);

-GDK_AVAILABLE_IN_ALL
+GDK_DEPRECATED_IN_4_16
 void          gdk_x11_display_set_cursor_theme (GdkDisplay  *display,
                                                const char *theme,
                                                const int    size);
@@ -4013,7 +4013,7 @@ gsk_gl_render_job_visit_subsurface_node (GskGLRenderJob      *job,
              /* Clear the area so we can see through */
              GskGLCommandBatch *batch;
              guint16 color[4];
-              rgba_to_half (&(GdkRGBA){0,0,0,0}, color);
+              rgba_to_half (&GDK_RGBA_TRANSPARENT, color);

              batch = gsk_gl_command_queue_get_batch (job->command_queue);
              batch->draw.blend = 0;
@@ -907,6 +907,7 @@ gsk_gpu_device_lookup_glyph_image (GskGpuDevice           *self,
  gsize atlas_x, atlas_y, padding;
  float subpixel_x, subpixel_y;
  PangoFont *scaled_font;
+  cairo_hint_metrics_t hint_metrics;

  cache = g_hash_table_lookup (priv->glyph_cache, &lookup);
  if (cache)
@@ -918,7 +919,15 @@ gsk_gpu_device_lookup_glyph_image (GskGpuDevice           *self,
      return cache->image;
    }

-  scaled_font = gsk_reload_font (font, scale, CAIRO_HINT_METRICS_DEFAULT, CAIRO_HINT_STYLE_DEFAULT, CAIRO_ANTIALIAS_DEFAULT);
+  /* The combination of hint-style != none and hint-metrics == off
+   * leads to broken rendering with some fonts.
+   */
+  if (gsk_font_get_hint_style (font) != CAIRO_HINT_STYLE_NONE)
+    hint_metrics = CAIRO_HINT_METRICS_ON;
+  else
+    hint_metrics = CAIRO_HINT_METRICS_DEFAULT;
+
+  scaled_font = gsk_reload_font (font, scale, hint_metrics, CAIRO_HINT_STYLE_DEFAULT, CAIRO_ANTIALIAS_DEFAULT);

  subpixel_x = (flags & 3) / 4.f;
  subpixel_y = ((flags >> 2) & 3) / 4.f;
@@ -345,8 +345,8 @@ gsk_gpu_node_processor_init_draw (GskGpuNodeProcessor   *self,

  area.x = 0;
  area.y = 0;
-  area.width = MAX (1, ceilf (graphene_vec2_get_x (scale) * viewport->size.width - EPSILON));
-  area.height = MAX (1, ceilf (graphene_vec2_get_y (scale) * viewport->size.height - EPSILON));
+  area.width = ceilf (graphene_vec2_get_x (scale) * viewport->size.width - EPSILON);
+  area.height = ceilf (graphene_vec2_get_y (scale) * viewport->size.height - EPSILON);

  image = gsk_gpu_device_create_offscreen_image (gsk_gpu_frame_get_device (frame),
                                                 FALSE,
@@ -313,11 +313,6 @@ gsk_gpu_upload_texture_op_try (GskGpuFrame *frame,
    {
      GEnumClass *enum_class = g_type_class_ref (GDK_TYPE_MEMORY_FORMAT);

-      if (!GDK_IS_MEMORY_TEXTURE (texture))
-        {
-          gdk_debug_message ("Unoptimized upload for %s", G_OBJECT_TYPE_NAME (texture));
-        }
-
      if (gdk_texture_get_format (texture) != gsk_gpu_image_get_format (image))
        {
          gdk_debug_message ("Unsupported format %s, converting on CPU to %s",
@@ -9,6 +9,7 @@

 #include "gdk/gdkdisplayprivate.h"
 #include "gdk/gdkvulkancontextprivate.h"
+#include "gdk/gdkprofilerprivate.h"

 struct _GskVulkanDevice
 {
@@ -786,7 +787,7 @@ gsk_vulkan_device_get_vk_conversion (GskVulkanDevice *self,
                                                    .sType = VK_STRUCTURE_TYPE_SAMPLER_YCBCR_CONVERSION_CREATE_INFO,
                                                    .format = vk_format,
                                                    .ycbcrModel = VK_SAMPLER_YCBCR_MODEL_CONVERSION_YCBCR_601,
-                                                    .ycbcrRange = VK_SAMPLER_YCBCR_RANGE_ITU_NARROW,
+                                                    .ycbcrRange = VK_SAMPLER_YCBCR_RANGE_ITU_FULL,
                                                    .components = (VkComponentMapping) {
                                                        VK_COMPONENT_SWIZZLE_IDENTITY,
                                                        VK_COMPONENT_SWIZZLE_IDENTITY,
@@ -949,6 +950,7 @@ gsk_vulkan_device_get_vk_pipeline (GskVulkanDevice           *self,
  GdkDisplay *display;
  const char *version_string;
  char *vertex_shader_name, *fragment_shader_name;
+  G_GNUC_UNUSED gint64 begin_time = GDK_PROFILER_CURRENT_TIME;

  cache_key = (PipelineCacheKey) {
    .op_class = op_class,
@@ -1125,6 +1127,10 @@ gsk_vulkan_device_get_vk_pipeline (GskVulkanDevice           *self,
                                           NULL,
                                           &pipeline);

+  gdk_profiler_end_markf (begin_time,
+                          "Create Vulkan pipeline frag=%s vert=%s",
+                          fragment_shader_name, vertex_shader_name);
+
  g_free (fragment_shader_name);
  g_free (vertex_shader_name);

@@ -29,6 +29,7 @@
 #include "gskdebugprivate.h"
 #include "gskrendernodeprivate.h"
 #include "gdksurfaceprivate.h"
+#include "gdkrgbaprivate.h"

 #include <graphene.h>

@@ -55,34 +56,91 @@ struct _GskOffload
  GskOffloadInfo *last_info;
 };

-static GdkTexture *
-find_texture_to_attach (GskOffload          *self,
-                        GdkSubsurface       *subsurface,
-                        const GskRenderNode *node,
-                        graphene_rect_t     *out_clip)
+static GdkTextureTransform
+find_texture_transform (GskTransform *transform)
 {
+  float sx, sy, dx, dy;
+
+  g_assert (gsk_transform_get_category (transform) >= GSK_TRANSFORM_CATEGORY_2D_AFFINE);
+
+  gsk_transform_to_affine (transform, &sx, &sy, &dx, &dy);
+
+  if (sx > 0)
+    {
+      if (sy > 0)
+        return GDK_TEXTURE_TRANSFORM_NORMAL;
+      else
+        return GDK_TEXTURE_TRANSFORM_FLIPPED_180;
+    }
+  else
+    {
+      if (sy > 0)
+        return GDK_TEXTURE_TRANSFORM_FLIPPED;
+      else
+        return GDK_TEXTURE_TRANSFORM_180;
+    }
+}
+
+static GdkTexture *
+find_texture_to_attach (GskOffload           *self,
+                        const GskRenderNode  *subsurface_node,
+                        graphene_rect_t      *out_texture_rect,
+                        graphene_rect_t      *out_source_rect,
+                        gboolean             *has_background,
+                        GdkTextureTransform  *out_texture_transform)
+{
+  GdkSubsurface *subsurface;
+  const GskRenderNode *node;
  gboolean has_clip = FALSE;
  graphene_rect_t clip;
+  GskTransform *transform = NULL;
+  GdkTexture *ret = NULL;
+
+  *has_background = FALSE;
+  *out_texture_transform = GDK_TEXTURE_TRANSFORM_NORMAL;
+
+  subsurface = gsk_subsurface_node_get_subsurface (subsurface_node);
+  node = subsurface_node;

  for (;;)
    {
-      switch ((int)GSK_RENDER_NODE_TYPE (node))
+      switch ((int) GSK_RENDER_NODE_TYPE (node))
        {
        case GSK_DEBUG_NODE:
          node = gsk_debug_node_get_child (node);
          break;

-        case GSK_CONTAINER_NODE:
-          if (gsk_container_node_get_n_children (node) != 1)
-            {
-              GDK_DISPLAY_DEBUG (gdk_surface_get_display (self->surface), OFFLOAD,
-                                 "Can't offload subsurface %p: too much content, container with %d children",
-                                 subsurface, gsk_container_node_get_n_children (node));
-              return NULL;
-            }
-          node = gsk_container_node_get_child (node, 0);
+        case GSK_SUBSURFACE_NODE:
+          node = gsk_subsurface_node_get_child (node);
          break;

+        case GSK_CONTAINER_NODE:
+          if (gsk_container_node_get_n_children (node) == 1)
+            {
+              node = gsk_container_node_get_child (node, 0);
+              break;
+            }
+          else if (gsk_container_node_get_n_children (node) == 2)
+            {
+              GskRenderNode *child = gsk_container_node_get_child (node, 0);
+              graphene_rect_t bounds;
+
+              gsk_transform_transform_bounds (transform, &child->bounds, &bounds);
+              if (GSK_RENDER_NODE_TYPE (child) == GSK_COLOR_NODE &&
+                  gsk_rect_equal (&bounds, &subsurface_node->bounds) &&
+                  gdk_rgba_equal (gsk_color_node_get_color (child), &GDK_RGBA_BLACK))
+                {
+                  *has_background = TRUE;
+                  node = gsk_container_node_get_child (node, 1);
+                  break;
+                }
+            }
+
+          GDK_DISPLAY_DEBUG (gdk_surface_get_display (self->surface), OFFLOAD,
+                             "[%p] 🗙 Too much content, container with %d children",
+                             subsurface, gsk_container_node_get_n_children (node));
+          goto out;
+
        case GSK_TRANSFORM_NODE:
          {
            GskTransform *t = gsk_transform_node_get_transform (node);
@@ -91,10 +149,10 @@ find_texture_to_attach (GskOffload          *self,
              {
                char *s = gsk_transform_to_string (t);
                GDK_DISPLAY_DEBUG (gdk_surface_get_display (self->surface), OFFLOAD,
-                                   "Can't offload subsurface %p: transform %s is not just scale/translate",
+                                   "[%p] 🗙 Transform %s is not just scale/translate",
                                   subsurface, s);
                g_free (s);
-                return NULL;
+                goto out;
              }

            if (has_clip)
@@ -104,6 +162,8 @@ find_texture_to_attach (GskOffload          *self,
                gsk_transform_unref (inv);
              }

+            transform = gsk_transform_transform (transform, gsk_transform_ref (t));
+
            node = gsk_transform_node_get_child (node);
          }
          break;
@@ -117,12 +177,13 @@ find_texture_to_attach (GskOffload          *self,
                if (!gsk_rect_intersection (c, &clip, &clip))
                  {
                    GDK_DISPLAY_DEBUG (gdk_surface_get_display (self->surface), OFFLOAD,
-                                      "Can't offload subsurface %p: empty clip", subsurface);
-                    return NULL;
+                                       "[%p] 🗙 Empty clip", subsurface);
+                    goto out;
                  }
              }
            else
              {
+                gsk_transform_transform_bounds (transform, &node->bounds, out_texture_rect);
                clip = *c;
                has_clip = TRUE;
              }
@@ -135,6 +196,8 @@ find_texture_to_attach (GskOffload          *self,
          {
            GdkTexture *texture = gsk_texture_node_get_texture (node);

+            *out_texture_transform = find_texture_transform (transform);
+
            if (has_clip)
              {
                float dx = node->bounds.origin.x;
@@ -144,29 +207,36 @@ find_texture_to_attach (GskOffload          *self,

                gsk_rect_intersection (&node->bounds, &clip, &clip);

-                out_clip->origin.x = (clip.origin.x - dx) * sx;
-                out_clip->origin.y = (clip.origin.y - dy) * sy;
-                out_clip->size.width = clip.size.width * sx;
-                out_clip->size.height = clip.size.height * sy;
+                out_source_rect->origin.x = (clip.origin.x - dx) * sx;
+                out_source_rect->origin.y = (clip.origin.y - dy) * sy;
+                out_source_rect->size.width = clip.size.width * sx;
+                out_source_rect->size.height = clip.size.height * sy;
              }
            else
              {
-                out_clip->origin.x = 0;
-                out_clip->origin.y = 0;
-                out_clip->size.width = gdk_texture_get_width (texture);
-                out_clip->size.height = gdk_texture_get_height (texture);
+                gsk_transform_transform_bounds (transform, &node->bounds, out_texture_rect);
+                out_source_rect->origin.x = 0;
+                out_source_rect->origin.y = 0;
+                out_source_rect->size.width = gdk_texture_get_width (texture);
+                out_source_rect->size.height = gdk_texture_get_height (texture);
              }

-            return texture;
+            ret = texture;
+            goto out;
          }

        default:
          GDK_DISPLAY_DEBUG (gdk_surface_get_display (self->surface), OFFLOAD,
-                             "Can't offload subsurface %p: Only textures supported but found %s",
+                             "[%p] 🗙 Only textures supported (found %s)",
                             subsurface, g_type_name_from_instance ((GTypeInstance *) node));
-          return NULL;
+          goto out;
        }
    }
+
+out:
+  g_clear_pointer (&transform, gsk_transform_unref);
+
+  return ret;
 }

 static void
@@ -406,7 +476,8 @@ visit_node (GskOffload    *self,

      if (info->can_raise)
        {
-          if (gsk_rect_intersects (&transformed_bounds, &info->dest))
+          if (gsk_rect_intersects (&transformed_bounds, &info->texture_rect) ||
+              gsk_rect_intersects (&transformed_bounds, &info->background_rect))
            {
              GskRenderNodeType type = GSK_RENDER_NODE_TYPE (node);

@@ -417,7 +488,7 @@ visit_node (GskOffload    *self,
                  type != GSK_DEBUG_NODE)
                {
                  GDK_DISPLAY_DEBUG (gdk_surface_get_display (self->surface), OFFLOAD,
-                                     "Can't raise subsurface %p because a %s overlaps",
+                                     "[%p]   Lowering because a %s overlaps",
                                     info->subsurface,
                                     g_type_name_from_instance ((GTypeInstance *) node));
                  info->can_raise = FALSE;
@@ -431,7 +502,6 @@ visit_node (GskOffload    *self,
  switch (GSK_RENDER_NODE_TYPE (node))
    {
    case GSK_BORDER_NODE:
-    case GSK_COLOR_NODE:
    case GSK_CONIC_GRADIENT_NODE:
    case GSK_LINEAR_GRADIENT_NODE:
    case GSK_REPEATING_LINEAR_GRADIENT_NODE:
@@ -441,6 +511,7 @@ visit_node (GskOffload    *self,
    case GSK_TEXTURE_NODE:
    case GSK_TEXTURE_SCALE_NODE:
    case GSK_CAIRO_NODE:
+    case GSK_COLOR_NODE:
    case GSK_INSET_SHADOW_NODE:
    case GSK_OUTSET_SHADOW_NODE:
    case GSK_GL_SHADER_NODE:
@@ -454,7 +525,7 @@ visit_node (GskOffload    *self,
    case GSK_MASK_NODE:
    case GSK_FILL_NODE:
    case GSK_STROKE_NODE:
-    break;
+      break;

    case GSK_CLIP_NODE:
      {
@@ -551,39 +622,42 @@ complex_clip:
    case GSK_SUBSURFACE_NODE:
      {
        GdkSubsurface *subsurface = gsk_subsurface_node_get_subsurface (node);
+        GskTransform *transform;

        GskOffloadInfo *info = find_subsurface_info (self, subsurface);

+        transform = self->transforms ? (GskTransform *) self->transforms->data : NULL;
+
        if (info == NULL)
          {
            GDK_DISPLAY_DEBUG (gdk_surface_get_display (self->surface), OFFLOAD,
-                               "Can't offload: unknown subsurface %p",
+                               "[%p] 🗙 Unknown subsurface",
                               subsurface);
          }
        else if (!self->current_clip->is_fully_contained)
          {
            GDK_DISPLAY_DEBUG (gdk_surface_get_display (self->surface), OFFLOAD,
-                               "Can't offload subsurface %p: clipped",
+                               "[%p] 🗙 Clipped",
                               subsurface);
          }
-        else if (self->transforms &&
-                 gsk_transform_get_category ((GskTransform *)self->transforms->data) < GSK_TRANSFORM_CATEGORY_2D_AFFINE)
+        else if (gsk_transform_get_category (transform) < GSK_TRANSFORM_CATEGORY_2D_AFFINE)
          {
            GDK_DISPLAY_DEBUG (gdk_surface_get_display (self->surface), OFFLOAD,
-                               "Can't offload subsurface %p: non-affine transform",
+                               "[%p] 🗙 Non-affine transform",
                               subsurface);
          }
        else
          {
-            graphene_rect_t clip;
+            gboolean has_background;

-            info->texture = find_texture_to_attach (self, subsurface, gsk_subsurface_node_get_child (node), &clip);
+            info->texture = find_texture_to_attach (self, node, &info->texture_rect, &info->source_rect, &has_background, &info->transform);
            if (info->texture)
              {
                info->can_offload = TRUE;
                info->can_raise = TRUE;
-                info->source = clip;
-                transform_bounds (self, &node->bounds, &info->dest);
+                transform_bounds (self, &info->texture_rect, &info->texture_rect);
+                info->has_background = has_background;
+                transform_bounds (self, &node->bounds, &info->background_rect);
                info->place_above = self->last_info ? self->last_info->subsurface : NULL;
                self->last_info = info;
              }
@@ -606,7 +680,6 @@ gsk_offload_new (GdkSurface     *surface,
                 GskRenderNode  *root,
                 cairo_region_t *diff)
 {
-  GdkDisplay *display = gdk_surface_get_display (surface);
  GskOffload *self;

  self = g_new0 (GskOffload, 1);
@@ -623,9 +696,12 @@ gsk_offload_new (GdkSurface     *surface,
  for (gsize i = 0; i < self->n_subsurfaces; i++)
    {
      GskOffloadInfo *info = &self->subsurfaces[i];
+      graphene_rect_t rect;
+
      info->subsurface = gdk_surface_get_subsurface (self->surface, i);
      info->was_offloaded = gdk_subsurface_get_texture (info->subsurface) != NULL;
      info->was_above = gdk_subsurface_is_above_parent (info->subsurface);
+      info->had_background = gdk_subsurface_get_background_rect (info->subsurface, &rect);
    }

  if (self->n_subsurfaces > 0)
@@ -642,23 +718,28 @@ gsk_offload_new (GdkSurface     *surface,
  for (gsize i = 0; i < self->n_subsurfaces; i++)
    {
      GskOffloadInfo *info = &self->subsurfaces[i];
-      graphene_rect_t old_dest;
+      graphene_rect_t old_bounds;
+      graphene_rect_t bounds;

-      gdk_subsurface_get_dest (info->subsurface, &old_dest);
+      gdk_subsurface_get_bounds (info->subsurface, &old_bounds);

      if (info->can_offload)
        {
          if (info->can_raise)
            info->is_offloaded = gdk_subsurface_attach (info->subsurface,
                                                        info->texture,
-                                                        &info->source,
-                                                        &info->dest,
+                                                        &info->source_rect,
+                                                        &info->texture_rect,
+                                                        info->transform,
+                                                        info->has_background ? &info->background_rect : NULL,
                                                        TRUE, NULL);
          else
            info->is_offloaded = gdk_subsurface_attach (info->subsurface,
                                                        info->texture,
-                                                        &info->source,
-                                                        &info->dest,
+                                                        &info->source_rect,
+                                                        &info->texture_rect,
+                                                        info->transform,
+                                                        info->has_background ? &info->background_rect : NULL,
                                                        info->place_above != NULL,
                                                        info->place_above);
        }
@@ -666,34 +747,29 @@ gsk_offload_new (GdkSurface     *surface,
        {
          info->is_offloaded = FALSE;
          if (info->was_offloaded)
-            {
-              GDK_DISPLAY_DEBUG (display, OFFLOAD, "Hiding subsurface %p", info->subsurface);
-              gdk_subsurface_detach (info->subsurface);
-            }
+            gdk_subsurface_detach (info->subsurface);
        }

-      if (info->is_offloaded && gdk_subsurface_is_above_parent (info->subsurface))
-        {
-          GDK_DISPLAY_DEBUG (display, OFFLOAD, "Raising subsurface %p", info->subsurface);
-          info->is_above = TRUE;
-        }
+      info->is_above = info->is_offloaded && gdk_subsurface_is_above_parent (info->subsurface);
+
+      gdk_subsurface_get_bounds (info->subsurface, &bounds);

      if (info->is_offloaded != info->was_offloaded ||
          info->is_above != info->was_above ||
-          (info->is_offloaded && !gsk_rect_equal (&info->dest, &old_dest)))
+          (info->is_offloaded && !gsk_rect_equal (&bounds, &old_bounds)))
        {
          /* We changed things, need to invalidate everything */
-          cairo_rectangle_int_t int_dest;
+          cairo_rectangle_int_t rect;

          if (info->is_offloaded)
            {
-              gsk_rect_to_cairo_grow (&info->dest, &int_dest);
-              cairo_region_union_rectangle (diff, &int_dest);
+              gsk_rect_to_cairo_grow (&bounds, &rect);
+              cairo_region_union_rectangle (diff, &rect);
            }
          if (info->was_offloaded)
            {
-              gsk_rect_to_cairo_grow (&old_dest, &int_dest);
-              cairo_region_union_rectangle (diff, &int_dest);
+              gsk_rect_to_cairo_grow (&old_bounds, &rect);
+              cairo_region_union_rectangle (diff, &rect);
            }
        }

@@ -31,8 +31,10 @@ typedef struct
  GdkSubsurface *subsurface;
  GdkTexture *texture;
  GdkSubsurface *place_above;
-  graphene_rect_t dest;
-  graphene_rect_t source;
+  graphene_rect_t texture_rect;
+  graphene_rect_t source_rect;
+  GdkTextureTransform transform;
+  graphene_rect_t background_rect;

  guint was_offloaded : 1;
  guint can_offload   : 1;
@@ -41,6 +43,9 @@ typedef struct
  guint was_above     : 1;
  guint can_raise     : 1;
  guint is_above      : 1;
+
+  guint had_background : 1;
+  guint has_background : 1;
 } GskOffloadInfo;

 GskOffload *        gsk_offload_new                      (GdkSurface       *surface,
@@ -1143,10 +1143,10 @@ gsk_path_builder_rel_conic_to (GskPathBuilder *self,
 * @x2: x coordinate of second control point
 * @y2: y coordinate of second control point
 *
- * Adds an elliptical arc from the current point to @x2, @y2
+ * Adds an elliptical arc from the current point to @x3, @y3
 * with @x1, @y1 determining the tangent directions.
 *
- * After this, @x2, @y2 will be the new current point.
+ * After this, @x3, @y3 will be the new current point.
 *
 * Note: Two points and their tangents do not determine
 * a unique ellipse, so GSK just picks one. If you need more
@@ -1180,7 +1180,7 @@ gsk_path_builder_arc_to (GskPathBuilder *self,
 * @x2: x coordinate of second control point
 * @y2: y coordinate of second control point
 *
- * Adds an elliptical arc from the current point to @x2, @y2
+ * Adds an elliptical arc from the current point to @x3, @y3
 * with @x1, @y1 determining the tangent directions.
 *
 * All coordinates are given relative to the current point.
@@ -28,9 +28,7 @@ G_BEGIN_DECLS

 typedef enum
 {
-  /* path has only lines */
  GSK_PATH_FLAT,
-  /* all contours are closed */
  GSK_PATH_CLOSED
 } GskPathFlags;

@@ -48,15 +48,9 @@ gsk_reload_font (PangoFont            *font,
                 cairo_hint_style_t    hint_style,
                 cairo_antialias_t     antialias)
 {
-  cairo_font_options_t *options;
-  cairo_scaled_font_t *sf;
+  static cairo_font_options_t *options = NULL;
  static PangoContext *context = NULL;
-#if !PANGO_VERSION_CHECK (1, 52, 0)
-  PangoFontDescription *desc;
-  FcPattern *pattern;
-  double dpi;
-  int size;
-#endif
+  cairo_scaled_font_t *sf;

  /* These requests often come in sequentially so keep the result
   * around and re-use it if everything matches.
@@ -84,7 +78,9 @@ gsk_reload_font (PangoFont            *font,
  g_set_object (&last_font, font);
  g_clear_object (&last_result);

-  options = cairo_font_options_create ();
+  if (G_UNLIKELY (options == NULL))
+    options = cairo_font_options_create ();
+
  sf = pango_cairo_font_get_scaled_font (PANGO_CAIRO_FONT (font));
  cairo_scaled_font_get_font_options (sf, options);

@@ -104,7 +100,6 @@ gsk_reload_font (PangoFont            *font,
      cairo_font_options_get_subpixel_order (options) == CAIRO_SUBPIXEL_ORDER_DEFAULT)
    {
      last_result = g_object_ref (font);
-      cairo_font_options_destroy (options);
      return g_object_ref (font);
    }

@@ -113,33 +108,12 @@ gsk_reload_font (PangoFont            *font,
  cairo_font_options_set_antialias (options, antialias);
  cairo_font_options_set_subpixel_order (options, CAIRO_SUBPIXEL_ORDER_DEFAULT);

-  if (!context)
+  if (G_UNLIKELY (context == NULL))
    context = pango_context_new ();

  pango_cairo_context_set_font_options (context, options);
-  cairo_font_options_destroy (options);

-#if PANGO_VERSION_CHECK (1, 52, 0)
  last_result = pango_font_map_reload_font (pango_font_get_font_map (font), font, scale, context, NULL);
-#else
-
-#ifdef HAVE_PANGOFT
-  pattern = pango_fc_font_get_pattern (PANGO_FC_FONT (font));
-  if (FcPatternGetDouble (pattern, FC_DPI, 0, &dpi) == FcResultMatch)
-    pango_cairo_context_set_resolution (context, dpi);
-#endif
-
-  desc = pango_font_describe (font);
-  size = pango_font_description_get_size (desc);
-
-  if (pango_font_description_get_size_is_absolute (desc))
-    pango_font_description_set_absolute_size (desc, size * scale);
-  else
-    pango_font_description_set_size (desc, (int) floor (size * scale + .5));
-
-  last_result = pango_font_map_load_font (pango_font_get_font_map (font), context, desc);
-  pango_font_description_free (desc);
-#endif

  return g_object_ref (last_result);
 }
@@ -155,15 +129,16 @@ gsk_reload_font (PangoFont            *font,
 cairo_hint_style_t
 gsk_font_get_hint_style (PangoFont *font)
 {
+  static cairo_font_options_t *options = NULL;
  cairo_scaled_font_t *sf;
-  cairo_font_options_t *options;
  cairo_hint_style_t style;

+  if (G_UNLIKELY (options == NULL))
+    options = cairo_font_options_create ();
+
  sf = pango_cairo_font_get_scaled_font (PANGO_CAIRO_FONT (font));
-  options = cairo_font_options_create ();
  cairo_scaled_font_get_font_options (sf, options);
  style = cairo_font_options_get_hint_style (options);
-  cairo_font_options_destroy (options);

  return style;
 }
@@ -1,5 +1,4 @@
 /* GSK - The GTK Scene Kit
- *
 * Copyright 2016  Endless
 *
 * This library is free software; you can redistribute it and/or
@@ -685,6 +684,26 @@ get_renderer_for_vulkan (GdkSurface *surface)
 #endif
 }

+static gboolean
+vulkan_friendly_platform (GdkSurface *surface)
+{
+#ifdef GDK_WINDOWING_WAYLAND
+  if (GDK_IS_WAYLAND_DISPLAY (gdk_surface_get_display (surface)))
+    return TRUE;
+#endif
+
+  return FALSE;
+}
+
+static GType
+get_renderer_for_vulkan_friendly_platform (GdkSurface *surface)
+{
+  if (vulkan_friendly_platform (surface))
+    return get_renderer_for_vulkan (surface);
+
+  return G_TYPE_INVALID;
+}
+
 static GType
 get_renderer_for_gles2 (GdkSurface *surface)
 {
@@ -703,9 +722,10 @@ static struct {
  { get_renderer_for_display },
  { get_renderer_for_env_var },
  { get_renderer_for_backend },
+  { get_renderer_for_vulkan_friendly_platform },
  { get_renderer_for_gl },
-  { get_renderer_for_gles2 },
  { get_renderer_for_vulkan },
+  { get_renderer_for_gles2 },
  { get_renderer_fallback },
 };

@@ -39,6 +39,7 @@
 #include "gdk/gdksubsurfaceprivate.h"
 #include "gdk/gdktextureprivate.h"
 #include "gdk/gdktexturedownloaderprivate.h"
+#include "gdk/gdkrgbaprivate.h"

 #include <cairo.h>
 #ifdef CAIRO_HAS_SVG_SURFACE
@@ -962,16 +962,12 @@ create_ascii_glyphs (PangoFont *font)
  for (i = MIN_ASCII_GLYPH; i < MAX_ASCII_GLYPH; i++)
    {
      const char text[2] = { i, 0 };
-      PangoShapeFlags flags = 0;
-
-      if (cairo_version () < CAIRO_VERSION_ENCODE (1, 17, 4))
-        flags = PANGO_SHAPE_ROUND_POSITIONS;

      pango_shape_with_flags (text, 1,
                              text, 1,
                              &not_a_hack,
                              glyph_string,
-                              flags);
+                              PANGO_SHAPE_NONE);

      if (glyph_string->num_glyphs != 1)
        {
@@ -184,4 +184,10 @@
        </signal>
 </interface>

+<interface name="org.a11y.atspi.Event.Focus">
+	<signal name="Focus"><arg direction="in" type="(suuv)"/>
+          <annotation name="org.qtproject.QtDBus.QtTypeName.In0" value="QSpiEvent"/>
+        </signal>
+</interface>
+
 </node>
@@ -48,114 +48,6 @@ find_first_accessible_non_socket (GtkAccessible *accessible)
  return NULL;
 }

-static void
-translate_coordinates_to_accessible (GtkAccessible  *accessible,
-                                     AtspiCoordType  coordtype,
-                                     int             xi,
-                                     int             yi,
-                                     int            *xo,
-                                     int            *yo)
-{
-  GtkAccessible *parent;
-  int x, y, width, height;
-
-  if (coordtype == ATSPI_COORD_TYPE_SCREEN)
-    {
-      *xo = 0;
-      *yo = 0;
-      return;
-    }
-
-  if (!gtk_accessible_get_bounds (accessible, &x, &y, &width, &height))
-    {
-      *xo = xi;
-      *yo = yi;
-      return;
-    }
-
-  // Transform coords to our parent, we will need that in any case
-  *xo = xi - x;
-  *yo = yi - y;
-
-  // If that's what the caller requested, we're done
-  if (coordtype == ATSPI_COORD_TYPE_PARENT)
-    return;
-
-  if (coordtype == ATSPI_COORD_TYPE_WINDOW)
-    {
-      parent = gtk_accessible_get_accessible_parent (accessible);
-      while (parent != NULL)
-        {
-          g_object_unref (parent);
-
-          if (gtk_accessible_get_bounds (parent, &x, &y, &width, &height))
-            {
-              *xo = *xo - x;
-              *yo = *yo - y;
-              parent = gtk_accessible_get_accessible_parent (parent);
-            }
-          else
-            break;
-        }
-    }
-  else
-    g_assert_not_reached ();
-}
-
-static void
-translate_coordinates_from_accessible (GtkAccessible *accessible,
-                                 AtspiCoordType     coordtype,
-                                 int                xi,
-                                 int                yi,
-                                 int               *xo,
-                                 int               *yo)
-{
-  GtkAccessible *parent;
-  int x, y, width, height;
-
-  if (coordtype == ATSPI_COORD_TYPE_SCREEN)
-    {
-      *xo = 0;
-      *yo = 0;
-      return;
-    }
-
-  if (!gtk_accessible_get_bounds (accessible, &x, &y, &width, &height))
-    {
-      *xo = xi;
-      *yo = yi;
-      return;
-    }
-
-  // Transform coords to our parent, we will need that in any case
-  *xo = xi + x;
-  *yo = yi + y;
-
-  // If that's what the caller requested, we're done
-  if (coordtype == ATSPI_COORD_TYPE_PARENT)
-    return;
-
-  if (coordtype == ATSPI_COORD_TYPE_WINDOW)
-    {
-      parent = gtk_accessible_get_accessible_parent (accessible);
-      while (parent != NULL)
-        {
-          g_object_unref (parent);
-
-          if (gtk_accessible_get_bounds (parent, &x, &y, &width, &height))
-            {
-              *xo = *xo + x;
-              *yo = *yo + y;
-              parent = gtk_accessible_get_accessible_parent (parent);
-            }
-          else
-            break;
-        }
-    }
-  else
-    g_assert_not_reached ();
-}
-
 static GtkAccessible *
 accessible_at_point (GtkAccessible *parent,
                     int            x,
@@ -209,7 +101,7 @@ component_handle_method (GDBusConnection       *connection,

      g_variant_get (parameters, "(iiu)", &x, &y, &coordtype);

-      translate_coordinates_to_accessible (accessible, coordtype, x, y, &x, &y);
+      gtk_at_spi_translate_coordinates_to_accessible (accessible, coordtype, x, y, &x, &y);

      if (gtk_accessible_get_bounds (accessible, &bounds_x, &bounds_y, &width, &height))
        ret = x >= 0 && x <= bounds_x && y >= 0 && y <= bounds_y;
@@ -225,8 +117,7 @@ component_handle_method (GDBusConnection       *connection,
      GtkAccessible *child;

      g_variant_get (parameters, "(iiu)", &x, &y, &coordtype);
-
-      translate_coordinates_to_accessible (accessible, coordtype, x, y, &x, &y);
+      gtk_at_spi_translate_coordinates_to_accessible (accessible, coordtype, x, y, &x, &y);

      child = accessible_at_point (accessible, x, y, TRUE);
      if (!child)
@@ -255,7 +146,7 @@ component_handle_method (GDBusConnection       *connection,

      g_variant_get (parameters, "(u)", &coordtype);

-      translate_coordinates_from_accessible (accessible, coordtype, 0, 0, &x, &y);
+      gtk_at_spi_translate_coordinates_from_accessible (accessible, coordtype, 0, 0, &x, &y);

      g_dbus_method_invocation_return_value (invocation, g_variant_new ("((iiii))", x, y, width, height));
    }
@@ -266,7 +157,7 @@ component_handle_method (GDBusConnection       *connection,

      g_variant_get (parameters, "(u)", &coordtype);

-      translate_coordinates_from_accessible (accessible, coordtype, 0, 0, &x, &y);
+      gtk_at_spi_translate_coordinates_from_accessible (accessible, coordtype, 0, 0, &x, &y);

      g_dbus_method_invocation_return_value (invocation, g_variant_new ("(ii)", x, y));
    }
@@ -899,6 +899,24 @@ emit_children_changed (GtkAtSpiContext         *self,
                                    context_ref);
 }

+static void
+emit_focus (GtkAtSpiContext *self,
+            gboolean         focus_in)
+{
+  if (self->connection == NULL)
+    return;
+
+  if (focus_in)
+    g_dbus_connection_emit_signal (self->connection,
+                                   NULL,
+                                   self->context_path,
+                                   "org.a11y.atspi.Event.Focus",
+                                   "Focus",
+                                   g_variant_new ("(siiva{sv})",
+                                                  "", 0, 0, g_variant_new_string ("0"), NULL),
+                                   NULL);
+}
+
 static void
 emit_window_event (GtkAtSpiContext *self,
                   const char      *event_type)
@@ -1178,6 +1196,7 @@ gtk_at_spi_context_platform_change (GtkATContext                *ctx,
      gboolean state = gtk_accessible_get_platform_state (GTK_ACCESSIBLE (widget),
                                                          GTK_ACCESSIBLE_PLATFORM_STATE_FOCUSED);
      emit_state_changed (self, "focused", state);
+      emit_focus (self, state);
    }

  if (changed_platform & GTK_ACCESSIBLE_PLATFORM_CHANGE_ACTIVE)
@@ -367,3 +367,112 @@ gtk_at_spi_emit_children_changed (GDBusConnection         *connection,
                                 g_variant_new ("(siiv@(so))", change, idx, 0, child_ref, sender_ref),
                                 NULL);
 }
+
+
+void
+gtk_at_spi_translate_coordinates_to_accessible (GtkAccessible  *accessible,
+                                                AtspiCoordType  coordtype,
+                                                int             xi,
+                                                int             yi,
+                                                int            *xo,
+                                                int            *yo)
+{
+  GtkAccessible *parent;
+  int x, y, width, height;
+
+  if (coordtype == ATSPI_COORD_TYPE_SCREEN)
+    {
+      *xo = 0;
+      *yo = 0;
+      return;
+    }
+
+  if (!gtk_accessible_get_bounds (accessible, &x, &y, &width, &height))
+    {
+      *xo = xi;
+      *yo = yi;
+      return;
+    }
+
+  /* Transform coords to our parent, we will need that in any case */
+  *xo = xi - x;
+  *yo = yi - y;
+
+  /* If that's what the caller requested, we're done */
+  if (coordtype == ATSPI_COORD_TYPE_PARENT)
+    return;
+
+  if (coordtype == ATSPI_COORD_TYPE_WINDOW)
+    {
+      parent = gtk_accessible_get_accessible_parent (accessible);
+      while (parent != NULL)
+        {
+          g_object_unref (parent);
+
+          if (gtk_accessible_get_bounds (parent, &x, &y, &width, &height))
+            {
+              *xo = *xo - x;
+              *yo = *yo - y;
+              parent = gtk_accessible_get_accessible_parent (parent);
+            }
+          else
+            break;
+        }
+    }
+  else
+    g_assert_not_reached ();
+}
+
+void
+gtk_at_spi_translate_coordinates_from_accessible (GtkAccessible *accessible,
+                                                  AtspiCoordType     coordtype,
+                                                  int                xi,
+                                                  int                yi,
+                                                  int               *xo,
+                                                  int               *yo)
+{
+  GtkAccessible *parent;
+  int x, y, width, height;
+
+  if (coordtype == ATSPI_COORD_TYPE_SCREEN)
+    {
+      *xo = 0;
+      *yo = 0;
+      return;
+    }
+
+  if (!gtk_accessible_get_bounds (accessible, &x, &y, &width, &height))
+    {
+      *xo = xi;
+      *yo = yi;
+      return;
+    }
+
+  /* Transform coords to our parent, we will need that in any case */
+  *xo = xi + x;
+  *yo = yi + y;
+
+  /* If that's what the caller requested, we're done */
+  if (coordtype == ATSPI_COORD_TYPE_PARENT)
+    return;
+
+  if (coordtype == ATSPI_COORD_TYPE_WINDOW)
+    {
+      parent = gtk_accessible_get_accessible_parent (accessible);
+      while (parent != NULL)
+        {
+          g_object_unref (parent);
+
+          if (gtk_accessible_get_bounds (parent, &x, &y, &width, &height))
+            {
+              *xo = *xo + x;
+              *yo = *yo + y;
+              parent = gtk_accessible_get_accessible_parent (parent);
+            }
+          else
+            break;
+        }
+    }
+  else
+    g_assert_not_reached ();
+}
@@ -39,4 +39,21 @@ gtk_at_spi_emit_children_changed (GDBusConnection         *connection,
                                  GVariant                *child_ref,
                                  GVariant                *sender_ref);

+void
+gtk_at_spi_translate_coordinates_to_accessible (GtkAccessible  *accessible,
+                                                AtspiCoordType  coordtype,
+                                                int             xi,
+                                                int             yi,
+                                                int            *xo,
+                                                int            *yo);
+
+
+void
+gtk_at_spi_translate_coordinates_from_accessible (GtkAccessible  *accessible,
+                                                  AtspiCoordType  coordtype,
+                                                  int             xi,
+                                                  int             yi,
+                                                  int            *xo,
+                                                  int            *yo);
+
 G_END_DECLS
@@ -21,16 +21,9 @@
 #include "gtkscalerprivate.h"

 #include "gdk/gdktextureprivate.h"
-#include "gdk/loaders/gdkpngprivate.h"

 /* {{{ Pixbuf helpers */

-static inline gboolean
-pixbuf_is_only_fg (GdkPixbuf *pixbuf)
-{
-  return gdk_pixbuf_get_option (pixbuf, "tEXt::only-foreground") != NULL;
-}
-
 static GdkPixbuf *
 load_from_stream (GdkPixbufLoader  *loader,
                  GInputStream     *stream,
@@ -206,7 +199,6 @@ _gdk_pixbuf_new_from_resource_at_scale (const char   *resource_path,

 static GdkPixbuf *
 load_symbolic_svg (const char     *escaped_file_data,
-                   gsize           len,
                   int             width,
                   int             height,
                   const char     *icon_width_str,
@@ -222,38 +214,37 @@ load_symbolic_svg (const char     *escaped_file_data,
  char *data;

  data = g_strconcat ("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n"
-                      "<svg version=\"1.1\" "
-                           "xmlns=\"http://www.w3.org/2000/svg\" "
-                           "xmlns:xi=\"http://www.w3.org/2001/XInclude\" "
-                           "width=\"", icon_width_str, "\" "
-                           "height=\"", icon_height_str, "\">"
-                        "<style type=\"text/css\">"
-                          "rect,circle,path {"
-                            "fill: ", fg_string," !important;"
-                          "}\n"
-                          ".warning {"
-                             "fill: ", warning_color_string, " !important;"
-                          "}\n"
-                          ".error {"
-                            "fill: ", error_color_string ," !important;"
-                          "}\n"
-                          ".success {"
-                            "fill: ", success_color_string, " !important;"
-                          "}"
-                        "</style>"
-                        "<xi:include href=\"data:text/xml;base64,",
+                      "<svg version=\"1.1\"\n"
+                      "     xmlns=\"http://www.w3.org/2000/svg\"\n"
+                      "     xmlns:xi=\"http://www.w3.org/2001/XInclude\"\n"
+                      "     width=\"", icon_width_str, "\"\n"
+                      "     height=\"", icon_height_str, "\">\n"
+                      "  <style type=\"text/css\">\n"
+                      "    rect,circle,path {\n"
+                      "      fill: ", fg_string," !important;\n"
+                      "    }\n"
+                      "    .warning {\n"
+                      "      fill: ", warning_color_string, " !important;\n"
+                      "    }\n"
+                      "    .error {\n"
+                      "      fill: ", error_color_string ," !important;\n"
+                      "    }\n"
+                      "    .success {\n"
+                      "      fill: ", success_color_string, " !important;\n"
+                      "    }\n"
+                      "  </style>\n"
+                      "  <xi:include href=\"data:text/xml;base64,", escaped_file_data, "\"/>\n"
+                      "</svg>",
                      NULL);

  stream = g_memory_input_stream_new_from_data (data, -1, g_free);
-  g_memory_input_stream_add_data (G_MEMORY_INPUT_STREAM (stream), escaped_file_data, len, NULL);
-  g_memory_input_stream_add_data (G_MEMORY_INPUT_STREAM (stream), "\"/></svg>", strlen ("\"/></svg>"), NULL);
  pixbuf = gdk_pixbuf_new_from_stream_at_scale (stream, width, height, TRUE, NULL, error);
  g_object_unref (stream);

  return pixbuf;
 }

-static gboolean
+static void
 extract_plane (GdkPixbuf *src,
               GdkPixbuf *dst,
               int        from_plane,
@@ -264,7 +255,6 @@ extract_plane (GdkPixbuf *src,
  gsize src_stride, dst_stride;
  guchar *src_row, *dst_row;
  int x, y;
-  gboolean all_clear = TRUE;

  width = gdk_pixbuf_get_width (src);
  height = gdk_pixbuf_get_height (src);
@@ -284,109 +274,11 @@ extract_plane (GdkPixbuf *src,
      dst_row = dst_data + dst_stride * y;
      for (x = 0; x < width; x++)
        {
-          if (src_row[from_plane] != 0)
-            all_clear = FALSE;
-
          dst_row[to_plane] = src_row[from_plane];
          src_row += 4;
          dst_row += 4;
        }
    }
-
-  return all_clear;
-}
-
-static void
-keep_alpha (GdkPixbuf *src)
-{
-  guchar *data;
-  int width, height;
-  gsize stride;
-
-  data = gdk_pixbuf_get_pixels (src);
-  width = gdk_pixbuf_get_width (src);
-  height = gdk_pixbuf_get_height (src);
-  stride = gdk_pixbuf_get_rowstride (src);
-
-  for (int y = 0; y < height; y++)
-    {
-      guchar *row = data + stride * y;
-      for (int x = 0; x < width; x++)
-        {
-          row[0] = row[1] = row[2] = 0;
-          row += 4;
-        }
-    }
-}
-
-static void
-svg_find_size_strings (const char  *data,
-                       gsize        len,
-                       char       **width,
-                       char       **height)
-{
-  gsize i, j, k, l;
-
-  *width = NULL;
-  *height = NULL;
-
-  for (i = 0; i < len - 4; i++)
-    {
-      if (strncmp (data + i, "<svg", 4) == 0)
-        {
-          for (j = i + strlen ("<svg"); j < len - 9; j++)
-            {
-              if (strncmp (data + j, "height=\"", strlen ("height=\"")) == 0)
-                {
-                  k = l = j + strlen ("height=\"");
-                  while (l < len && data[l] != '\"')
-                    l++;
-
-                  *height = g_strndup (data + k, l - k);
-
-                  if (*width && *height)
-                    return;
-
-                  j = l;
-                }
-              else if (strncmp (data + j, "width=\"", strlen ("width=\"")) == 0)
-                {
-                  k = l = j + strlen ("width=\"");
-                  while (l < len && data[l] != '\"')
-                    l++;
-
-                  *width = g_strndup (data + k, l - k);
-
-                  if (*width && *height)
-                    return;
-
-                  j = l;
-                }
-              else if (data[j] == '>')
-                {
-                  break;
-                }
-            }
-
-          break;
-        }
-    }
-
-  *width = g_strdup ("16px");
-  *height = g_strdup ("16px");
-}
-
-static gboolean
-svg_has_symbolic_classes (const char *data,
-                          gsize       len)
-{
-#ifdef HAVE_MEMMEM
-  return memmem (data, len, "class=\"error\"", strlen ("class=\"error\"")) != NULL ||
-         memmem (data, len, "class=\"warning\"", strlen ("class=\"warning\"")) != NULL ||
-         memmem (data, len, "class=\"success\"", strlen ("class=\"success\"")) != NULL;
-#else
-  return TRUE;
-#endif
 }

 GdkPixbuf *
@@ -401,46 +293,38 @@ gtk_make_symbolic_pixbuf_from_data (const char  *file_data,
 {
  const char *r_string = "rgb(255,0,0)";
  const char *g_string = "rgb(0,255,0)";
-  char *icon_width_str = NULL;
-  char *icon_height_str = NULL;
-  char *escaped_file_data = NULL;
-  gsize len;
+  char *icon_width_str;
+  char *icon_height_str;
+  GdkPixbuf *loaded;
  GdkPixbuf *pixbuf = NULL;
-  gboolean has_symbolic_classes;
-  gboolean only_fg = TRUE;
-
-  has_symbolic_classes = svg_has_symbolic_classes (file_data, file_len);
+  int plane;
+  int icon_width, icon_height;
+  char *escaped_file_data;

  /* Fetch size from the original icon */
-  if (has_symbolic_classes || width == 0 || height == 0)
-    svg_find_size_strings (file_data, file_len, &icon_width_str, &icon_height_str);
+  GInputStream *stream = g_memory_input_stream_new_from_data (file_data, file_len, NULL);
+  GdkPixbuf *reference = gdk_pixbuf_new_from_stream (stream, NULL, error);

-  if (width == 0)
-    width = (int) (g_ascii_strtoull (icon_width_str, NULL, 0) * scale);
-  if (height == 0)
-    height = (int) (g_ascii_strtoull (icon_height_str, NULL, 0) * scale);
+  g_object_unref (stream);

-  if (!has_symbolic_classes)
-    {
-      GInputStream *stream;
+  if (!reference)
+    return NULL;

-      stream = g_memory_input_stream_new_from_data (file_data, file_len, NULL);
-      pixbuf = gdk_pixbuf_new_from_stream_at_scale (stream, width, height, TRUE, NULL, error);
-      g_object_unref (stream);
-
-      if (pixbuf)
-        keep_alpha (pixbuf);
-
-      goto out;
-    }
+  icon_width = gdk_pixbuf_get_width (reference);
+  icon_height = gdk_pixbuf_get_height (reference);
+  g_object_unref (reference);

  escaped_file_data = g_base64_encode ((guchar *) file_data, file_len);
-  len = strlen (escaped_file_data);
+  icon_width_str = g_strdup_printf ("%d", icon_width);
+  icon_height_str = g_strdup_printf ("%d", icon_height);

-  for (int plane = 0; plane < 3; plane++)
+  if (width == 0)
+    width = icon_width * scale;
+  if (height == 0)
+    height = icon_height * scale;
+
+  for (plane = 0; plane < 3; plane++)
    {
-      GdkPixbuf *loaded;
-
      /* Here we render the svg with all colors solid, this should
       * always make the alpha channel the same and it should match
       * the final alpha channel for all possible renderings. We
@@ -453,7 +337,7 @@ gtk_make_symbolic_pixbuf_from_data (const char  *file_data,
       * channels, with the color of the fg being implicitly
       * the "rest", as all color fractions should add up to 1.
       */
-      loaded = load_symbolic_svg (escaped_file_data, len, width, height,
+      loaded = load_symbolic_svg (escaped_file_data, width, height,
                                  icon_width_str,
                                  icon_height_str,
                                  g_string,
@@ -474,26 +358,25 @@ gtk_make_symbolic_pixbuf_from_data (const char  *file_data,
          g_free (filename);
        }

-      if (plane == 0)
+      if (pixbuf == NULL)
        {
          pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
                                   gdk_pixbuf_get_width (loaded),
                                   gdk_pixbuf_get_height (loaded));
-          memset (gdk_pixbuf_get_pixels (pixbuf), 0, gdk_pixbuf_get_byte_length (pixbuf));
-
-          extract_plane (loaded, pixbuf, 3, 3);
+          gdk_pixbuf_fill (pixbuf, 0);
        }

-      only_fg &= extract_plane (loaded, pixbuf, 0, plane);
+      if (plane == 0)
+        extract_plane (loaded, pixbuf, 3, 3);
+
+      extract_plane (loaded, pixbuf, 0, plane);

      g_object_unref (loaded);
    }

-out:
-  if (only_fg && pixbuf)
-    gdk_pixbuf_set_option (pixbuf, "tEXt::only-foreground", "true");
-
  g_free (escaped_file_data);
+
+out:
  g_free (icon_width_str);
  g_free (icon_height_str);

@@ -526,17 +409,17 @@ make_symbolic_pixbuf_from_resource (const char  *path,
 }

 static GdkPixbuf *
-make_symbolic_pixbuf_from_filename (const char  *filename,
-                                    int          width,
-                                    int          height,
-                                    double       scale,
-                                    GError     **error)
+make_symbolic_pixbuf_from_path (const char  *path,
+                                int          width,
+                                int          height,
+                                double       scale,
+                                GError     **error)
 {
  char *data;
  gsize size;
  GdkPixbuf *pixbuf;

-  if (!g_file_get_contents (filename, &data, &size, error))
+  if (!g_file_get_contents (path, &data, &size, error))
    return NULL;

  pixbuf = gtk_make_symbolic_pixbuf_from_data (data, size, width, height, scale, NULL, error);
@@ -570,85 +453,11 @@ make_symbolic_pixbuf_from_file (GFile       *file,
 /* }}} */
 /* {{{ Texture API */

-static GdkTexture *
-texture_new_from_bytes (GBytes    *bytes,
-                        gboolean  *only_fg,
-                        GError   **error)
-{
-  GHashTable *options;
-  GdkTexture *texture;
-
-  if (!gdk_is_png (bytes))
-    return gdk_texture_new_from_bytes (bytes, error);
-
-  options = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
-  texture = gdk_load_png (bytes, options, error);
-  *only_fg = g_hash_table_contains (options, "foreground-only");
-  g_hash_table_unref (options);
-
-  return texture;
-}
-
-GdkTexture *
-gdk_texture_new_from_filename_with_fg (const char    *filename,
-                                       gboolean      *only_fg,
-                                       GError       **error)
-{
-  GFile *file;
-  GBytes *bytes;
-  GdkTexture *texture = NULL;
-
-  file = g_file_new_for_path (filename);
-  bytes = g_file_load_bytes (file, NULL, NULL, error);
-  if (bytes)
-    texture = texture_new_from_bytes (bytes, only_fg, error);
-  g_bytes_unref (bytes);
-  g_object_unref (file);
-
-  return texture;
-}
-
-GdkTexture *
-gdk_texture_new_from_resource_with_fg (const char *path,
-                                       gboolean   *only_fg)
-{
-  GBytes *bytes;
-  GdkTexture *texture = NULL;
-
-  bytes = g_resources_lookup_data (path, 0, NULL);
-  if (bytes)
-    texture = texture_new_from_bytes (bytes, only_fg, NULL);
-  g_bytes_unref (bytes);
-
-  return texture;
-}
-
-GdkTexture *
-gdk_texture_new_from_stream_with_fg (GInputStream  *stream,
-                                     gboolean      *only_fg,
-                                     GCancellable  *cancellable,
-                                     GError       **error)
-{
-  GdkPixbuf *pixbuf;
-  GdkTexture *texture = NULL;
-
-  pixbuf = _gdk_pixbuf_new_from_stream_scaled (stream, 0, cancellable, error);
-  if (pixbuf)
-    {
-      *only_fg = pixbuf_is_only_fg (pixbuf);
-      texture = gdk_texture_new_for_pixbuf (pixbuf);
-      g_object_unref (pixbuf);
-    }
-
-  return texture;
-}
-
 GdkTexture *
 gdk_texture_new_from_stream_at_scale (GInputStream  *stream,
                                      int            width,
                                      int            height,
                                      gboolean       aspect,
-                                      gboolean      *only_fg,
                                      GCancellable  *cancellable,
                                      GError       **error)
 {
@@ -658,7 +467,24 @@ gdk_texture_new_from_stream_at_scale (GInputStream  *stream,
  pixbuf = _gdk_pixbuf_new_from_stream_at_scale (stream, width, height, aspect, cancellable, error);
  if (pixbuf)
    {
-      *only_fg = pixbuf_is_only_fg (pixbuf);
+      texture = gdk_texture_new_for_pixbuf (pixbuf);
+      g_object_unref (pixbuf);
+    }
+
+  return texture;
+}
+
+GdkTexture *
+gdk_texture_new_from_stream (GInputStream  *stream,
+                             GCancellable  *cancellable,
+                             GError       **error)
+{
+  GdkPixbuf *pixbuf;
+  GdkTexture *texture = NULL;
+
+  pixbuf = _gdk_pixbuf_new_from_stream_scaled (stream, 0, cancellable, error);
+  if (pixbuf)
+    {
      texture = gdk_texture_new_for_pixbuf (pixbuf);
      g_object_unref (pixbuf);
    }
@@ -671,7 +497,6 @@ gdk_texture_new_from_resource_at_scale (const char    *path,
                                        int            width,
                                        int            height,
                                        gboolean       preserve_aspect,
-                                        gboolean      *only_fg,
                                        GError       **error)
 {
  GdkPixbuf *pixbuf;
@@ -680,7 +505,6 @@ gdk_texture_new_from_resource_at_scale (const char    *path,
  pixbuf = _gdk_pixbuf_new_from_resource_at_scale (path, width, height, preserve_aspect, error);
  if (pixbuf)
    {
-      *only_fg = pixbuf_is_only_fg (pixbuf);
      texture = gdk_texture_new_for_pixbuf (pixbuf);
      g_object_unref (pixbuf);
    }
@@ -692,20 +516,18 @@ gdk_texture_new_from_resource_at_scale (const char    *path,
 /* {{{ Symbolic texture API */

 GdkTexture *
-gdk_texture_new_from_filename_symbolic (const char    *filename,
-                                        int            width,
-                                        int            height,
-                                        double         scale,
-                                        gboolean      *only_fg,
-                                        GError       **error)
+gdk_texture_new_from_path_symbolic (const char    *path,
+                                    int            width,
+                                    int            height,
+                                    double         scale,
+                                    GError       **error)
 {
  GdkPixbuf *pixbuf;
  GdkTexture *texture = NULL;

-  pixbuf = make_symbolic_pixbuf_from_filename (filename, width, height, scale, error);
+  pixbuf = make_symbolic_pixbuf_from_path (path, width, height, scale, error);
  if (pixbuf)
    {
-      *only_fg = pixbuf_is_only_fg (pixbuf);
      texture = gdk_texture_new_for_pixbuf (pixbuf);
      g_object_unref (pixbuf);
    }
@@ -724,7 +546,6 @@ gdk_texture_new_from_resource_symbolic (const char  *path,
                                        int          width,
                                        int          height,
                                        double       scale,
-                                        gboolean    *only_fg,
                                        GError     **error)
 {
  GdkPixbuf *pixbuf;
@@ -733,7 +554,6 @@ gdk_texture_new_from_resource_symbolic (const char  *path,
  pixbuf = make_symbolic_pixbuf_from_resource (path, width, height, scale, error);
  if (pixbuf)
    {
-      *only_fg = pixbuf_is_only_fg (pixbuf);
      texture = gdk_texture_new_for_pixbuf (pixbuf);
      g_object_unref (pixbuf);
    }
@@ -768,19 +588,14 @@ gdk_texture_new_from_file_symbolic (GFile       *file,
                                    int          width,
                                    int          height,
                                    double       scale,
-                                    gboolean    *only_fg,
                                    GError     **error)
 {
  GdkPixbuf *pixbuf;
-  GdkTexture *texture = NULL;
+  GdkTexture *texture;

  pixbuf = make_symbolic_pixbuf_from_file (file, width, height, scale, error);
-  if (pixbuf)
-    {
-      *only_fg = pixbuf_is_only_fg (pixbuf);
-      texture = gdk_texture_new_for_pixbuf (pixbuf);
-      g_object_unref (pixbuf);
-    }
+  texture = gdk_texture_new_for_pixbuf (pixbuf);
+  g_object_unref (pixbuf);

  return texture;
 }
@@ -789,7 +604,7 @@ gdk_texture_new_from_file_symbolic (GFile       *file,
 /* {{{ Scaled paintable API */

 typedef struct {
-  double scale;
+  int scale_factor;
 } LoaderData;

 static void
@@ -805,24 +620,24 @@ on_loader_size_prepared (GdkPixbufLoader *loader,
  format = gdk_pixbuf_loader_get_format (loader);
  if (!gdk_pixbuf_format_is_scalable (format))
    {
-      loader_data->scale = 1.0;
+      loader_data->scale_factor = 1;
      return;
    }

  gdk_pixbuf_loader_set_size (loader,
-                              width * loader_data->scale,
-                              height * loader_data->scale);
+                              width * loader_data->scale_factor,
+                              height * loader_data->scale_factor);
 }

 static GdkPaintable *
 gdk_paintable_new_from_bytes_scaled (GBytes *bytes,
-                                     double  scale)
+                                     int     scale_factor)
 {
  LoaderData loader_data;
  GdkTexture *texture;
  GdkPaintable *paintable;

-  loader_data.scale = scale;
+  loader_data.scale_factor = scale_factor;

  if (gdk_texture_can_load (bytes))
    {
@@ -852,8 +667,8 @@ gdk_paintable_new_from_bytes_scaled (GBytes *bytes,
      texture = gdk_texture_new_for_pixbuf (gdk_pixbuf_loader_get_pixbuf (loader));
      g_object_unref (loader);

-      if (loader_data.scale != 1.0)
-        paintable = gtk_scaler_new (GDK_PAINTABLE (texture), loader_data.scale);
+      if (loader_data.scale_factor != 1)
+        paintable = gtk_scaler_new (GDK_PAINTABLE (texture), loader_data.scale_factor);
      else
        paintable = g_object_ref (GDK_PAINTABLE (texture));

@@ -864,20 +679,20 @@ gdk_paintable_new_from_bytes_scaled (GBytes *bytes,
 }

 GdkPaintable *
-gdk_paintable_new_from_filename_scaled (const char *filename,
-                                        double      scale)
+gdk_paintable_new_from_path_scaled (const char *path,
+                                    int         scale_factor)
 {
  char *contents;
  gsize length;
  GBytes *bytes;
  GdkPaintable *paintable;

-  if (!g_file_get_contents (filename, &contents, &length, NULL))
+  if (!g_file_get_contents (path, &contents, &length, NULL))
    return NULL;

  bytes = g_bytes_new_take (contents, length);

-  paintable = gdk_paintable_new_from_bytes_scaled (bytes, scale);
+  paintable = gdk_paintable_new_from_bytes_scaled (bytes, scale_factor);

  g_bytes_unref (bytes);

@@ -886,7 +701,7 @@ gdk_paintable_new_from_filename_scaled (const char *filename,

 GdkPaintable *
 gdk_paintable_new_from_resource_scaled (const char *path,
-                                        double      scale)
+                                        int         scale_factor)
 {
  GBytes *bytes;
  GdkPaintable *paintable;
@@ -895,16 +710,15 @@ gdk_paintable_new_from_resource_scaled (const char *path,
  if (!bytes)
    return NULL;

-  paintable = gdk_paintable_new_from_bytes_scaled (bytes, scale);
-
+  paintable = gdk_paintable_new_from_bytes_scaled (bytes, scale_factor);
  g_bytes_unref (bytes);

  return paintable;
 }

 GdkPaintable *
-gdk_paintable_new_from_file_scaled (GFile  *file,
-                                    double  scale)
+gdk_paintable_new_from_file_scaled (GFile *file,
+                                    int    scale_factor)
 {
  GBytes *bytes;
  GdkPaintable *paintable;
@@ -913,7 +727,7 @@ gdk_paintable_new_from_file_scaled (GFile  *file,
  if (!bytes)
    return NULL;

-  paintable = gdk_paintable_new_from_bytes_scaled (bytes, scale);
+  paintable = gdk_paintable_new_from_bytes_scaled (bytes, scale_factor);

  g_bytes_unref (bytes);

@@ -29,56 +29,45 @@ GdkPixbuf *gtk_make_symbolic_pixbuf_from_data       (const char    *data,
                                                     const char    *debug_output_to,
                                                     GError       **error);

-GdkTexture *gdk_texture_new_from_filename_with_fg   (const char    *filename,
-                                                     gboolean      *only_fg,
-                                                     GError       **error);
-GdkTexture *gdk_texture_new_from_resource_with_fg   (const char    *path,
-                                                     gboolean      *only_fg);
-GdkTexture *gdk_texture_new_from_stream_with_fg     (GInputStream  *stream,
-                                                     gboolean      *only_fg,
+GdkTexture *gdk_texture_new_from_stream             (GInputStream  *stream,
                                                     GCancellable  *cancellable,
                                                     GError       **error);
 GdkTexture *gdk_texture_new_from_stream_at_scale    (GInputStream  *stream,
                                                     int            width,
                                                     int            height,
                                                     gboolean       aspect,
-                                                     gboolean      *only_fg,
                                                     GCancellable  *cancellable,
                                                     GError       **error);
 GdkTexture *gdk_texture_new_from_resource_at_scale  (const char    *path,
                                                     int            width,
                                                     int            height,
                                                     gboolean       aspect,
-                                                     gboolean      *only_fg,
                                                     GError       **error);

-GdkTexture *gdk_texture_new_from_filename_symbolic  (const char    *path,
+GdkTexture *gdk_texture_new_from_path_symbolic      (const char    *path,
                                                     int            width,
                                                     int            height,
                                                     double         scale,
-                                                     gboolean      *only_fg,
                                                     GError       **error);
 GdkTexture *gdk_texture_new_from_file_symbolic      (GFile         *file,
                                                     int            width,
                                                     int            height,
                                                     double         scale,
-                                                     gboolean      *only_fg,
                                                     GError       **error);
 GdkTexture *gdk_texture_new_from_resource_symbolic  (const char    *path,
                                                     int            width,
                                                     int            height,
                                                     double         scale,
-                                                     gboolean      *only_fg,
                                                     GError       **error);

 GdkTexture *gtk_load_symbolic_texture_from_file     (GFile         *file);
-GdkTexture *gtk_load_symbolic_texture_from_resource (const char    *path);
+GdkTexture *gtk_load_symbolic_texture_from_resource (const char    *data);

-GdkPaintable *gdk_paintable_new_from_filename_scaled (const char    *filename,
-                                                      double         scale);
+GdkPaintable *gdk_paintable_new_from_path_scaled     (const char    *path,
+                                                      int            scale_factor);
 GdkPaintable *gdk_paintable_new_from_resource_scaled (const char    *path,
-                                                      double         scale);
+                                                      int            scale_factor);
 GdkPaintable *gdk_paintable_new_from_file_scaled     (GFile         *file,
-                                                      double         scale);
+                                                      int            scale_factor);

 G_END_DECLS
@@ -27,6 +27,8 @@
 #include "gtktextviewprivate.h"
 #include "gtkwidgetprivate.h"
 #include "gtkcsscolorvalueprivate.h"
+#include "gdk/gdkrgbaprivate.h"
+#include "gtkcssshadowvalueprivate.h"

 #include <math.h>

@@ -96,6 +98,11 @@ gsk_pango_renderer_draw_glyph_item (PangoRenderer  *renderer,
 {
  GskPangoRenderer *crenderer = (GskPangoRenderer *) (renderer);
  GdkRGBA color;
+  gboolean has_shadow = FALSE;
+
+  if (crenderer->shadow_style)
+    has_shadow = gtk_css_shadow_value_push_snapshot (crenderer->shadow_style->font->text_shadow,
+                                                     crenderer->snapshot);

  get_color (crenderer, PANGO_RENDER_PART_FOREGROUND, &color);

@@ -105,6 +112,9 @@ gsk_pango_renderer_draw_glyph_item (PangoRenderer  *renderer,
                            &color,
                            (float) x / PANGO_SCALE,
                            (float) y / PANGO_SCALE);
+
+  if (has_shadow)
+    gtk_snapshot_pop (crenderer->snapshot);
 }

 static void
@@ -201,7 +211,7 @@ gsk_pango_renderer_draw_error_underline (PangoRenderer *renderer,
  gtk_snapshot_append_color (crenderer->snapshot, &rgba, &dot.bounds);
  gtk_snapshot_pop (crenderer->snapshot);
  gtk_snapshot_append_color (crenderer->snapshot,
-                             &(GdkRGBA) { 0.f, 0.f, 0.f, 0.f },
+                             &GDK_RGBA_TRANSPARENT,
                             &GRAPHENE_RECT_INIT (xx, yy, 1.5 * hh, hh));

  gtk_snapshot_pop (crenderer->snapshot);
@@ -342,20 +352,20 @@ gsk_pango_renderer_prepare_run (PangoRenderer  *renderer,
      GTK_IS_TEXT_VIEW (crenderer->widget))
    {
      GtkCssNode *node;
-      GtkCssValue *value;
+      GtkCssStyle *style;

      node = gtk_text_view_get_selection_node ((GtkTextView *)crenderer->widget);
-      value = gtk_css_node_get_style (node)->core->color;
-      fg_rgba = gtk_css_color_value_get_rgba (value);
+      style = gtk_css_node_get_style (node);
+      fg_rgba = gtk_css_color_value_get_rgba (style->core->color);
    }
  else if (crenderer->state == GSK_PANGO_RENDERER_CURSOR && gtk_widget_has_focus (crenderer->widget))
    {
      GtkCssNode *node;
-      GtkCssValue *value;
+      GtkCssStyle *style;

      node = gtk_widget_get_css_node (crenderer->widget);
-      value = gtk_css_node_get_style (node)->background->background_color;
-      fg_rgba = gtk_css_color_value_get_rgba (value);
+      style = gtk_css_node_get_style (node);
+      fg_rgba = gtk_css_color_value_get_rgba (style->background->background_color);
    }
  else
    fg_rgba = appearance->fg_rgba;
@@ -381,6 +391,15 @@ gsk_pango_renderer_prepare_run (PangoRenderer  *renderer,
    }
  else
    text_renderer_set_rgba (crenderer, PANGO_RENDER_PART_UNDERLINE, fg_rgba);
+
+  crenderer->shadow_style = NULL;
+  if (GTK_IS_TEXT_VIEW (crenderer->widget))
+    {
+      if (crenderer->state == GSK_PANGO_RENDERER_SELECTED)
+        crenderer->shadow_style = gtk_css_node_get_style (gtk_text_view_get_selection_node ((GtkTextView *)crenderer->widget));
+      else if (crenderer->state != GSK_PANGO_RENDERER_CURSOR)
+        crenderer->shadow_style = gtk_css_node_get_style (gtk_widget_get_css_node (crenderer->widget));
+    }
 }

 static void
@@ -438,6 +457,7 @@ gsk_pango_renderer_release (GskPangoRenderer *renderer)
    {
      renderer->widget = NULL;
      renderer->snapshot = NULL;
+      renderer->shadow_style = NULL;

      if (renderer->error_color)
        {
@@ -20,6 +20,7 @@

 #include <pango/pango.h>
 #include "gtk/gtksnapshot.h"
+#include "gtk/gtkcssstyleprivate.h"

 G_BEGIN_DECLS

@@ -58,6 +59,7 @@ struct _GskPangoRenderer
  GtkWidget             *widget;
  GtkSnapshot           *snapshot;
  const GdkRGBA         *fg_color;
+  GtkCssStyle           *shadow_style;

  /* Error underline color for this widget */
  GdkRGBA               *error_color;
@@ -426,6 +426,59 @@ gtk_accessible_text_get_attributes_run (GtkAccessibleText        *self,
  return TRUE;
 }

+/*< private >
+ * gtk_accessible_text_get_extents:
+ * @self: a `GtkAccessibleText`
+ * @start: start offset, in characters
+ * @end: end offset, in characters
+ * @extents: (out caller-allocates): return location for the extents
+ *
+ * Obtains the extents of a range of text, in widget coordinates.
+ *
+ * Returns: true if the extents were filled in, false otherwise
+ *
+ * Since: 4.16
+ */
+gboolean
+gtk_accessible_text_get_extents (GtkAccessibleText *self,
+                                 unsigned int       start,
+                                 unsigned int       end,
+                                 graphene_rect_t   *extents)
+{
+  g_return_val_if_fail (GTK_IS_ACCESSIBLE_TEXT (self), FALSE);
+  g_return_val_if_fail (start <= end, FALSE);
+  g_return_val_if_fail (extents != NULL, FALSE);
+
+  if (GTK_ACCESSIBLE_TEXT_GET_IFACE (self)->get_extents != NULL)
+    return GTK_ACCESSIBLE_TEXT_GET_IFACE (self)->get_extents (self, start, end, extents);
+
+  return FALSE;
+}
+
+/*< private >
+ * gtk_accessible_get_text_offset:
+ * @self: a `GtkAccessibleText`
+ * @point: a point in widget coordinates
+ * @offset: (out): return location for the text offset at @point
+ *
+ * Determines the text offset at the given position in the
+ * widget.
+ *
+ * Returns: true if the offset was set, and false otherwise
+ */
+gboolean
+gtk_accessible_text_get_offset (GtkAccessibleText      *self,
+                                const graphene_point_t *point,
+                                unsigned int           *offset)
+{
+  g_return_val_if_fail (GTK_IS_ACCESSIBLE_TEXT (self), FALSE);
+
+  if (GTK_ACCESSIBLE_TEXT_GET_IFACE (self)->get_offset != NULL)
+    return GTK_ACCESSIBLE_TEXT_GET_IFACE (self)->get_offset (self, point, offset);
+
+  return FALSE;
+}
+
 /**
 * gtk_accessible_text_update_caret_position:
 * @self: the accessible object
--- a/Show More
+++ b/Show More