jpeg: Set errors

We can just use gdk_texture_new_from_bytes here now.

Update affected test output.

config.h.meson

@@ -1,286 +0,0 @@
-/* always defined to indicate that i18n is enabled */
-#define ENABLE_NLS 1
-
-/* Use structured logging */
-#define G_LOG_STRUCTURED 1
-
-/* The prefix for our gettext translation domains. */
-#mesondefine GETTEXT_PACKAGE
-
-/* Disable deprecation warnings from glib */
-#mesondefine GLIB_DISABLE_DEPRECATION_WARNINGS
-
-/* Define the location where the catalogs will be installed */
-#mesondefine GTK_LOCALEDIR
-
-/* Define to 1 if you have the `bind_textdomain_codeset' function. */
-#mesondefine HAVE_BIND_TEXTDOMAIN_CODESET
-
-/* Have the cloudproviders library */
-#mesondefine HAVE_CLOUDPROVIDERS
-
-/* define if we have colord */
-#mesondefine HAVE_COLORD
-
-/* Define to 1 if you have the <crt_externs.h> header file. */
-#mesondefine HAVE_CRT_EXTERNS_H
-
-/* Define to 1 if you have the `dcgettext' function. */
-#mesondefine HAVE_DCGETTEXT
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#mesondefine HAVE_DLFCN_H
-
-/* Have the ffmpeg library */
-#mesondefine HAVE_FFMPEG
-
-/* Define to 1 if you have the <ftw.h> header file. */
-#mesondefine HAVE_FTW_H
-
-/* Define to 1 if you have the `getpagesize' function. */
-#mesondefine HAVE_GETPAGESIZE
-
-/* Define to 1 if you have the `getresuid' function. */
-#mesondefine HAVE_GETRESUID
-
-/* Define if gio-unix is available */
-#mesondefine HAVE_GIO_UNIX
-
-/* Define if GStreamer support is available */
-#mesondefine HAVE_GSTREAMER
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#mesondefine HAVE_INTTYPES_H
-
-/* Define to 1 if the system has the type `IPrintDialogCallback'. */
-#mesondefine HAVE_IPRINTDIALOGCALLBACK
-
-/* Define to 1 if you have the <locale.h> header file. */
-#mesondefine HAVE_LOCALE_H
-
-/* Define to 1 if you have the `lstat' function. */
-#mesondefine HAVE_LSTAT
-
-/* Define to 1 if you have the `mallinfo' function. */
-#mesondefine HAVE_MALLINFO
-
-/* Define to 1 if you have the <memory.h> header file. */
-#mesondefine HAVE_MEMORY_H
-
-/* Define to 1 if you have the `mkstemp' function. */
-#mesondefine HAVE_MKSTEMP
-
-/* Define to 1 if you have the `mlock` function. */
-#mesondefine HAVE_MLOCK
-
-/* Define to 1 if you have a working `mmap' system call. */
-#mesondefine HAVE_MMAP
-
-/* Define to 1 if you have a working `madvise' system call. */
-#mesondefine HAVE_MADVISE
-
-/* Define to 1 if you have the `posix_fallocate' function. */
-#mesondefine HAVE_POSIX_FALLOCATE
-
-/* Have the Xrandr extension library */
-#mesondefine HAVE_RANDR
-
-/* Have the Xrandr 1.5 extension library */
-#mesondefine HAVE_RANDR15
-
-/* Define to 1 if you have the `sincos' function. */
-#mesondefine HAVE_SINCOS
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#mesondefine HAVE_STDINT_H
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#mesondefine HAVE_STDLIB_H
-
-/* Define to 1 if you have the <strings.h> header file. */
-#mesondefine HAVE_STRINGS_H
-
-/* Define to 1 if you have the <string.h> header file. */
-#mesondefine HAVE_STRING_H
-
-/* Define to 1 if you have the <sys/mman.h> header file. */
-#mesondefine HAVE_SYS_MMAN_H
-
-/* Define to 1 if you have the <sys/param.h> header file. */
-#mesondefine HAVE_SYS_PARAM_H
-
-/* Have the sysprof-capture library */
-#mesondefine HAVE_SYSPROF
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#mesondefine HAVE_SYS_STAT_H
-
-/* Define to 1 if you have the <sys/time.h> header file. */
-#mesondefine HAVE_SYS_TIME_H
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#mesondefine HAVE_SYS_TYPES_H
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#mesondefine HAVE_UNISTD_H
-
-/* Have the Xcursor library */
-#mesondefine HAVE_XCURSOR
-
-/* Have the XDAMAGE X extension */
-#mesondefine HAVE_XDAMAGE
-
-/* Have the XFIXES X extension */
-#mesondefine HAVE_XFIXES
-
-/* Define to 1 if XFree Xinerama is available */
-#mesondefine HAVE_XFREE_XINERAMA
-
-/* Have XGenericEvent */
-#mesondefine HAVE_XGENERICEVENTS
-
-/* Define to use XKB extension */
-#mesondefine HAVE_XKB
-
-/* Have the SYNC extension library */
-#mesondefine HAVE_XSYNC
-
-/* Define to 1 if you have the `_lock_file' function */
-#mesondefine HAVE__LOCK_FILE
-
-/* Define to 1 if you have the `flockfile' function */
-#mesondefine HAVE_FLOCKFILE
-
-/* Define if _NL_MEASUREMENT_MEASUREMENT is available */
-#mesondefine HAVE__NL_MEASUREMENT_MEASUREMENT
-
-/* Define if _NL_PAPER_HEIGHT is available */
-#mesondefine HAVE__NL_PAPER_HEIGHT
-
-/* Define if _NL_PAPER_WIDTH is available */
-#mesondefine HAVE__NL_PAPER_WIDTH
-
-/* Define if _NL_TIME_FIRST_WEEKDAY is available */
-#mesondefine HAVE__NL_TIME_FIRST_WEEKDAY
-
-/* Define to the sub-directory where libtool stores uninstalled libraries. */
-#mesondefine LT_OBJDIR
-
-/* Define to 1 if your C compiler doesn't accept -c and -o together. */
-#mesondefine NO_MINUS_C_MINUS_O
-
-/* Define to the address where bug reports for this package should be sent. */
-#mesondefine PACKAGE_BUGREPORT
-
-/* Define to the full name of this package. */
-#mesondefine PACKAGE_NAME
-
-/* Define to the full name and version of this package. */
-#mesondefine PACKAGE_STRING
-
-/* Define to the one symbol short name of this package. */
-#mesondefine PACKAGE_TARNAME
-
-/* Define to the home page for this package. */
-#mesondefine PACKAGE_URL
-
-/* Define to the version of this package. */
-#mesondefine PACKAGE_VERSION
-
-/* Use NSBundle functions to determine load paths for libraries, translations,
-   etc. */
-#mesondefine QUARTZ_RELOCATION
-
-/* Define to 1 if you have the ANSI C header files. */
-#mesondefine STDC_HEADERS
-
-/* Enable extensions on AIX 3, Interix.  */
-#ifndef _ALL_SOURCE
-# undef _ALL_SOURCE
-#endif
-/* Enable GNU extensions on systems that have them.  */
-#ifndef _GNU_SOURCE
-# undef _GNU_SOURCE
-#endif
-/* Enable threading extensions on Solaris.  */
-#ifndef _POSIX_PTHREAD_SEMANTICS
-# undef _POSIX_PTHREAD_SEMANTICS
-#endif
-/* Enable extensions on HP NonStop.  */
-#ifndef _TANDEM_SOURCE
-# undef _TANDEM_SOURCE
-#endif
-/* Enable general extensions on Solaris.  */
-#ifndef __EXTENSIONS__
-# undef __EXTENSIONS__
-#endif
-
-
-/* Define to 1 if XInput 2.2 is available */
-#mesondefine XINPUT_2_2
-
-/* Define to 1 if the X Window System is missing or not being used. */
-#mesondefine X_DISPLAY_MISSING
-
-/* Enable large inode numbers on Mac OS X 10.5.  */
-#ifndef _DARWIN_USE_64_BIT_INODE
-# define _DARWIN_USE_64_BIT_INODE 1
-#endif
-
-/* Number of bits in a file offset, on hosts where this is settable. */
-#mesondefine _FILE_OFFSET_BITS
-
-/* defines how to decorate public symbols while building */
-#mesondefine _GDK_EXTERN
-
-/* Define for large files, on AIX-style hosts. */
-#mesondefine _LARGE_FILES
-
-/* Define to 1 if on MINIX. */
-#mesondefine _MINIX
-
-/* Define to 2 if the system does not provide POSIX.1 features except with
-   this defined. */
-#mesondefine _POSIX_1_SOURCE
-
-/* Define to 1 if you need to in order for `stat' and other things to work. */
-#mesondefine _POSIX_SOURCE
-
-/* Define to `int' if <sys/types.h> doesn't define. */
-#mesondefine gid_t
-
-/* Define to `int' if <sys/types.h> doesn't define. */
-#mesondefine uid_t
-
-/* Define to 1 if linux/memfd.h exists */
-#mesondefine HAVE_LINUX_MEMFD_H
-
-#mesondefine HAVE_LINUX_INPUT_H
-
-#mesondefine HAVE_DEV_EVDEV_INPUT_H
-
-#mesondefine GTK_SYSCONFDIR
-
-#mesondefine GTK_LOCALEDIR
-
-#mesondefine GTK_DATADIR
-
-#mesondefine GTK_LIBDIR
-
-#mesondefine GTK_PRINT_BACKENDS
-
-#mesondefine HAVE_CAIRO_SCRIPT_INTERPRETER
-
-#mesondefine HAVE_HARFBUZZ
-
-#mesondefine HAVE_PANGOFT
-
-#mesondefine ISO_CODES_PREFIX
-
-/* Define if tracker3 is available */
-#mesondefine HAVE_TRACKER3
-
-#mesondefine HAVE_F16C
-
-/* Does the OS support GDesktopAppInfo? */
-#mesondefine HAVE_DESKTOPAPPINFO

examples/application9/exampleappprefs.c

@@ -7,6 +7,10 @@
 struct _ExampleAppPrefs
 {
   GtkDialog parent;
+
+  GSettings *settings;
+  GtkWidget *font;
+  GtkWidget *transition;
 };
 
 G_DEFINE_TYPE (ExampleAppPrefs, example_app_prefs, GTK_TYPE_DIALOG)
@@ -15,20 +19,41 @@ static void
 example_app_prefs_init (ExampleAppPrefs *prefs)
 {
   gtk_widget_init_template (GTK_WIDGET (prefs));
+  prefs->settings = g_settings_new ("org.gtk.exampleapp");
+
+  g_settings_bind (prefs->settings, "font",
+                   prefs->font, "font",
+                   G_SETTINGS_BIND_DEFAULT);
+  g_settings_bind (prefs->settings, "transition",
+                   prefs->transition, "active-id",
+                   G_SETTINGS_BIND_DEFAULT);
+}
+
+static void
+example_app_prefs_dispose (GObject *object)
+{
+  ExampleAppPrefs *prefs;
+
+  prefs = EXAMPLE_APP_PREFS (object);
+
+  g_clear_object (&prefs->settings);
+
+  G_OBJECT_CLASS (example_app_prefs_parent_class)->dispose (object);
 }
 
 static void
 example_app_prefs_class_init (ExampleAppPrefsClass *class)
 {
+  G_OBJECT_CLASS (class)->dispose = example_app_prefs_dispose;
+
   gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
                                                "/org/gtk/exampleapp/prefs.ui");
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppPrefs, font);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppPrefs, transition);
 }
 
 ExampleAppPrefs *
 example_app_prefs_new (ExampleAppWindow *win)
 {
-  return g_object_new (EXAMPLE_APP_PREFS_TYPE,
-                       "transient-for", win,
-                       "use-header-bar", TRUE,
-                       NULL);
+  return g_object_new (EXAMPLE_APP_PREFS_TYPE, "transient-for", win, "use-header-bar", TRUE, NULL);
 }

examples/application9/prefs.ui

@@ -28,7 +28,6 @@
             </child>
             <child>
               <object class="GtkFontButton" id="font">
-              <property name="font" bind-settings-schema="org.gtk.exampleapp" bind-settings-key="font"/>
                 <layout>
                   <property name="column">1</property>
                   <property name="row">0</property>
@@ -49,7 +48,6 @@
             </child>
             <child>
               <object class="GtkComboBoxText" id="transition">
-                <property name="active-id" bind-settings-schema="org.gtk.exampleapp" bind-settings-key="transition"/>
                 <items>
                   <item translatable="yes" id="none">None</item>
                   <item translatable="yes" id="crossfade">Fade</item>

gdk/gdkcairo.h

@@ -50,7 +50,7 @@ cairo_region_t *
            gdk_cairo_region_create_from_surface
                                         (cairo_surface_t      *surface);
 
-GDK_AVAILABLE_IN_ALL
+GDK_DEPRECATED_IN_4_6_FOR(gdk_gl_texture_new)
 void       gdk_cairo_draw_from_gl (cairo_t              *cr,
                                    GdkSurface            *surface,
                                    int                   source,

gdk/gdkcontentdeserializer.c

@@ -25,6 +25,8 @@
 #include "filetransferportalprivate.h"
 #include "gdktexture.h"
 #include "gdkrgbaprivate.h"
+#include "loaders/gdkpngprivate.h"
+#include "loaders/gdktiffprivate.h"
 
 #include <gdk-pixbuf/gdk-pixbuf.h>
 
@@ -655,6 +657,88 @@ pixbuf_deserializer (GdkContentDeserializer *deserializer)
                                     deserializer);
 }
 
+static void
+texture_deserializer_finish (GObject      *source,
+                             GAsyncResult *res,
+                             gpointer      data)
+{
+  GdkContentDeserializer *deserializer = GDK_CONTENT_DESERIALIZER (source);
+  GdkTexture *texture;
+  GValue *value;
+  GError *error = NULL;
+
+  texture = g_task_propagate_pointer (G_TASK (res), &error);
+  if (texture == NULL)
+    {
+      gdk_content_deserializer_return_error (deserializer, error);
+      return;
+    }
+
+  value = gdk_content_deserializer_get_value (deserializer);
+  g_value_take_object (value, texture);
+  gdk_content_deserializer_return_success (deserializer);
+}
+
+static GBytes *
+read_all_data (GInputStream  *source,
+               GError       **error)
+{
+  GOutputStream *output;
+  gssize size;
+  GBytes *bytes;
+
+  output = g_memory_output_stream_new (NULL, 0, g_realloc, g_free);
+  size = g_output_stream_splice (output, source, 0, NULL, error);
+  if (size == -1)
+    {
+      g_object_unref (output);
+      return NULL;
+    }
+
+  g_output_stream_close (output, NULL, NULL);
+  bytes = g_memory_output_stream_steal_as_bytes (G_MEMORY_OUTPUT_STREAM (output));
+  g_object_unref (output);
+
+  return bytes;
+}
+
+static void
+deserialize_texture_in_thread (GTask        *task,
+                               gpointer      source_object,
+                               gpointer      task_data,
+                               GCancellable *cancellable)
+{
+  GdkContentDeserializer *deserializer = source_object;
+  GBytes *bytes;
+  GError *error = NULL;
+  GdkTexture *texture = NULL;
+
+  bytes = read_all_data (gdk_content_deserializer_get_input_stream (deserializer), &error);
+  if (bytes)
+    {
+      texture = gdk_texture_new_from_bytes (bytes, &error);
+      g_bytes_unref (bytes);
+    }
+
+  if (texture)
+    g_task_return_pointer (task, texture, g_object_unref);
+  else
+    g_task_return_error (task, error);
+}
+
+static void
+texture_deserializer (GdkContentDeserializer *deserializer)
+{
+  GTask *task;
+
+  task = g_task_new (deserializer,
+                     gdk_content_deserializer_get_cancellable (deserializer),
+                     texture_deserializer_finish,
+                     NULL);
+  g_task_run_in_thread (task, deserialize_texture_in_thread);
+  g_object_unref (task);
+}
+
 static void
 string_deserializer_finish (GObject      *source,
                             GAsyncResult *result,
@@ -863,48 +947,65 @@ init (void)
 
   initialized = TRUE;
 
+  gdk_content_register_deserializer ("image/png",
+                                     GDK_TYPE_TEXTURE,
+                                     texture_deserializer,
+                                     NULL,
+                                     NULL);
+
+  gdk_content_register_deserializer ("image/tiff",
+                                     GDK_TYPE_TEXTURE,
+                                     texture_deserializer,
+                                     NULL,
+                                     NULL);
+
   formats = gdk_pixbuf_get_formats ();
 
   /* Make sure png comes first */
   for (f = formats; f; f = f->next)
     {
       GdkPixbufFormat *fmt = f->data;
-      char *name; 
- 
+      char *name;
+
       name = gdk_pixbuf_format_get_name (fmt);
       if (g_str_equal (name, "png"))
-	{
-	  formats = g_slist_delete_link (formats, f);
-	  formats = g_slist_prepend (formats, fmt);
+        {
+          formats = g_slist_delete_link (formats, f);
+          formats = g_slist_prepend (formats, fmt);
 
-	  g_free (name);
-
-	  break;
-	}
+          g_free (name);
+          break;
+        }
 
       g_free (name);
-    }  
+    }
 
   for (f = formats; f; f = f->next)
     {
       GdkPixbufFormat *fmt = f->data;
       char **mimes, **m;
+      char *name;
 
+      name = gdk_pixbuf_format_get_name (fmt);
       mimes = gdk_pixbuf_format_get_mime_types (fmt);
       for (m = mimes; *m; m++)
-	{
-          gdk_content_register_deserializer (*m,
-                                             GDK_TYPE_TEXTURE,
-                                             pixbuf_deserializer,
-                                             NULL,
-                                             NULL);
+        {
+          /* Turning pngs and tiffs into textures is handled above */
+          if (!g_str_equal (name, "png") &&
+              !g_str_equal (name, "tiff"))
+            gdk_content_register_deserializer (*m,
+                                               GDK_TYPE_TEXTURE,
+                                               pixbuf_deserializer,
+                                               NULL,
+                                               NULL);
           gdk_content_register_deserializer (*m,
                                              GDK_TYPE_PIXBUF,
                                              pixbuf_deserializer,
                                              NULL,
                                              NULL);
-	}
+        }
       g_strfreev (mimes);
+      g_free (name);
     }
 
   g_slist_free (formats);

gdk/gdkcontentserializer.c

@@ -26,6 +26,9 @@
 #include "filetransferportalprivate.h"
 #include "gdktextureprivate.h"
 #include "gdkrgba.h"
+#include "loaders/gdkpngprivate.h"
+#include "loaders/gdktiffprivate.h"
+#include "gdkmemorytextureprivate.h"
 
 #include <gdk-pixbuf/gdk-pixbuf.h>
 #include <string.h>
@@ -606,6 +609,7 @@ gdk_content_serialize_finish (GAsyncResult  *result,
 
 /*** SERIALIZERS ***/
 
+
 static void
 pixbuf_serializer_finish (GObject      *source,
                           GAsyncResult *res,
@@ -658,6 +662,82 @@ pixbuf_serializer (GdkContentSerializer *serializer)
   g_object_unref (pixbuf);
 }
 
+static void
+texture_serializer_finish (GObject      *source,
+                           GAsyncResult *res,
+                           gpointer      user_data)
+{
+  GdkContentSerializer *serializer = GDK_CONTENT_SERIALIZER (source);
+  GError *error = NULL;
+
+  if (!g_task_propagate_boolean (G_TASK (res), &error))
+    gdk_content_serializer_return_error (serializer, error);
+  else
+    gdk_content_serializer_return_success (serializer);
+}
+
+static void
+serialize_texture_in_thread (GTask        *task,
+                             gpointer      source_object,
+                             gpointer      task_data,
+                             GCancellable *cancellable)
+{
+  GdkContentSerializer *serializer = source_object;
+  const GValue *value;
+  GdkTexture *texture;
+  GBytes *bytes = NULL;
+  GError *error = NULL;
+  gboolean result = FALSE;
+
+  value = gdk_content_serializer_get_value (serializer);
+  texture = g_value_get_object (value);
+
+  if (strcmp (gdk_content_serializer_get_mime_type (serializer), "image/png") == 0)
+    bytes = gdk_save_png (texture);
+  else if (strcmp (gdk_content_serializer_get_mime_type (serializer), "image/tiff") == 0)
+    bytes = gdk_save_tiff (texture);
+  else
+    g_assert_not_reached ();
+
+  if (bytes)
+    {
+      GInputStream *input = g_memory_input_stream_new_from_bytes (bytes);
+      gssize spliced;
+
+      spliced = g_output_stream_splice (gdk_content_serializer_get_output_stream (serializer),
+                                        input,
+                                        G_OUTPUT_STREAM_SPLICE_CLOSE_SOURCE,
+                                        gdk_content_serializer_get_cancellable (serializer),
+                                        &error);
+      g_object_unref (input);
+      g_bytes_unref (bytes);
+
+      result = spliced != -1;
+    }
+  else
+    g_set_error_literal (&error,
+                         G_IO_ERROR, G_IO_ERROR_FAILED,
+                         "Saving png failed");
+
+  if (result)
+    g_task_return_boolean (task, result);
+  else
+    g_task_return_error (task, error);
+}
+
+static void
+texture_serializer (GdkContentSerializer *serializer)
+{
+  GTask *task;
+
+  task = g_task_new (serializer,
+                     gdk_content_serializer_get_cancellable (serializer),
+                     texture_serializer_finish,
+                     NULL);
+  g_task_run_in_thread (task, serialize_texture_in_thread);
+  g_object_unref (task);
+}
+
 static void
 string_serializer_finish (GObject      *source,
                           GAsyncResult *result,
@@ -877,51 +957,66 @@ init (void)
 
   initialized = TRUE;
 
+  gdk_content_register_serializer (GDK_TYPE_TEXTURE,
+                                   "image/png",
+                                   texture_serializer,
+                                   NULL, NULL);
+
+  gdk_content_register_serializer (GDK_TYPE_TEXTURE,
+                                   "image/tiff",
+                                   texture_serializer,
+                                   NULL, NULL);
+
   formats = gdk_pixbuf_get_formats ();
 
   /* Make sure png comes first */
   for (f = formats; f; f = f->next)
     {
       GdkPixbufFormat *fmt = f->data;
-      char *name; 
- 
+      char *name;
+
       name = gdk_pixbuf_format_get_name (fmt);
       if (g_str_equal (name, "png"))
-	{
-	  formats = g_slist_delete_link (formats, f);
-	  formats = g_slist_prepend (formats, fmt);
+        {
+          formats = g_slist_delete_link (formats, f);
+          formats = g_slist_prepend (formats, fmt);
 
-	  g_free (name);
-
-	  break;
-	}
+          g_free (name);
+          break;
+        }
 
       g_free (name);
-    }  
+    }
 
   for (f = formats; f; f = f->next)
     {
       GdkPixbufFormat *fmt = f->data;
       char **mimes, **m;
+      char *name;
 
       if (!gdk_pixbuf_format_is_writable (fmt))
-	continue;
+        continue;
 
+      name = gdk_pixbuf_format_get_name (fmt);
       mimes = gdk_pixbuf_format_get_mime_types (fmt);
       for (m = mimes; *m; m++)
-	{
-          gdk_content_register_serializer (GDK_TYPE_TEXTURE,
-                                           *m,
-                                           pixbuf_serializer,
-                                           gdk_pixbuf_format_get_name (fmt),
-                                           g_free);
+        {
+          /* Turning textures into pngs or tiffs is handled above */
+          if (!g_str_equal (name, "png") &&
+              !g_str_equal (name, "tiff"))
+            gdk_content_register_serializer (GDK_TYPE_TEXTURE,
+                                             *m,
+                                             pixbuf_serializer,
+                                             gdk_pixbuf_format_get_name (fmt),
+                                             g_free);
           gdk_content_register_serializer (GDK_TYPE_PIXBUF,
                                            *m,
                                            pixbuf_serializer,
                                            gdk_pixbuf_format_get_name (fmt),
                                            g_free);
-	}
+        }
       g_strfreev (mimes);
+      g_free (name);
     }
 
   g_slist_free (formats);

gdk/gdkgl.c

@@ -301,7 +301,7 @@ gdk_gl_texture_quads (GdkGLContext *paint_context,
  * @width: The width of the region to draw
  * @height: The height of the region to draw
  *
- * The main way to draw GL content in GTK.
+ * The main way to not draw GL content in GTK.
  *
  * It takes a render buffer ID (@source_type == GL_RENDERBUFFER) or a texture
  * id (@source_type == GL_TEXTURE) and draws it onto @cr with an OVER operation,
@@ -319,6 +319,12 @@ gdk_gl_texture_quads (GdkGLContext *paint_context,
  * with alpha components, so make sure you use GL_TEXTURE if using alpha.
  *
  * Calling this may change the current GL context.
+ *
+ * Deprecated: 4.6: The function is overly complex and produces broken output
+ *   in various combinations of arguments. If you want to draw with GL textures
+ *   in GTK, use [ctor@Gdk.GLTexture.new]; if you want to use that texture in
+ *   Cairo, use [method@Gdk.Texture.download] to download the data into a Cairo
+ *   image surface.
  */
 void
 gdk_cairo_draw_from_gl (cairo_t              *cr,

gdk/gdkglcontext.c

@@ -229,64 +229,83 @@ gdk_gl_context_upload_texture (GdkGLContext    *context,
 {
   GdkGLContextPrivate *priv = gdk_gl_context_get_instance_private (context);
   guchar *copy = NULL;
-  guint gl_format;
-  guint gl_type;
-  guint bpp;
+  GLint gl_internalformat;
+  GLint gl_format;
+  GLint gl_type;
+  gsize bpp;
 
   g_return_if_fail (GDK_IS_GL_CONTEXT (context));
 
-  if (priv->use_es)
+  if (!priv->use_es && data_format == GDK_MEMORY_DEFAULT) /* Cairo surface format */
     {
-      /* GLES only supports rgba, so convert if necessary */
-      if (data_format != GDK_MEMORY_R8G8B8A8_PREMULTIPLIED)
-        {
-          copy = g_malloc (width * height * 4);
-          gdk_memory_convert (copy, width * 4,
-                              GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
-                              data, stride, data_format,
-                              width, height);
-          stride = width * 4;
-          data = copy;
-        }
-
-      bpp = 4;
+      gl_internalformat = GL_RGBA8;
+      gl_format = GL_BGRA;
+      gl_type = GL_UNSIGNED_INT_8_8_8_8_REV;
+    }
+  else if (data_format == GDK_MEMORY_R8G8B8) /* Pixmap non-alpha data */
+    {
+      gl_internalformat = GL_RGBA8;
+      gl_format = GL_RGB;
+      gl_type = GL_UNSIGNED_BYTE;
+    }
+  else if (priv->use_es && data_format == GDK_MEMORY_B8G8R8)
+    {
+      gl_internalformat = GL_RGBA8;
+      gl_format = GL_BGR;
+      gl_type = GL_UNSIGNED_BYTE;
+    }
+  else if (data_format == GDK_MEMORY_R16G16B16)
+    {
+      gl_internalformat = GL_RGBA16;
+      gl_format = GL_RGB;
+      gl_type = GL_UNSIGNED_SHORT;
+    }
+  else if (data_format == GDK_MEMORY_R16G16B16A16_PREMULTIPLIED)
+    {
+      gl_internalformat = GL_RGBA16;
+      gl_format = GL_RGBA;
+      gl_type = GL_UNSIGNED_SHORT;
+    }
+  else if (data_format == GDK_MEMORY_R16G16B16_FLOAT)
+    {
+      gl_internalformat = GL_RGB16F;
+      gl_format = GL_RGB;
+      gl_type = GL_HALF_FLOAT;
+    }
+  else if (data_format == GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED)
+    {
+      gl_internalformat = GL_RGBA16F;
+      gl_format = GL_RGBA;
+      gl_type = GL_HALF_FLOAT;
+    }
+  else if (data_format == GDK_MEMORY_R32G32B32_FLOAT)
+    {
+      gl_internalformat = GL_RGB32F;
+      gl_format = GL_RGB;
+      gl_type = GL_FLOAT;
+    }
+  else if (data_format == GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED)
+    {
+      gl_internalformat = GL_RGBA32F;
+      gl_format = GL_RGBA;
+      gl_type = GL_FLOAT;
+    }
+  else /* Fall-back, convert to GLES format */
+    {
+      copy = g_malloc (width * height * 4);
+      gdk_memory_convert (copy, width * 4,
+                          GDK_MEMORY_CONVERT_GLES_RGBA,
+                          data, stride, data_format,
+                          width, height);
+      data_format = GDK_MEMORY_R8G8B8A8_PREMULTIPLIED;
+      stride = width * 4;
+      data = copy;
+      gl_internalformat = GL_RGBA8;
       gl_format = GL_RGBA;
       gl_type = GL_UNSIGNED_BYTE;
     }
-  else
-    {
-      if (data_format == GDK_MEMORY_DEFAULT) /* Cairo surface format */
-        {
-          gl_format = GL_BGRA;
-          gl_type = GL_UNSIGNED_INT_8_8_8_8_REV;
-          bpp = 4;
-        }
-      else if (data_format == GDK_MEMORY_R8G8B8) /* Pixmap non-alpha data */
-        {
-          gl_format = GL_RGB;
-          gl_type = GL_UNSIGNED_BYTE;
-          bpp = 3;
-        }
-      else if (data_format == GDK_MEMORY_B8G8R8)
-        {
-          gl_format = GL_BGR;
-          gl_type = GL_UNSIGNED_BYTE;
-          bpp = 3;
-        }
-      else /* Fall-back, convert to cairo-surface-format */
-        {
-          copy = g_malloc (width * height * 4);
-          gdk_memory_convert (copy, width * 4,
-                              GDK_MEMORY_DEFAULT,
-                              data, stride, data_format,
-                              width, height);
-          stride = width * 4;
-          bpp = 4;
-          data = copy;
-          gl_format = GL_BGRA;
-          gl_type = GL_UNSIGNED_INT_8_8_8_8_REV;
-        }
-    }
+
+  bpp = gdk_memory_format_bytes_per_pixel (data_format);
 
   /* GL_UNPACK_ROW_LENGTH is available on desktop GL, OpenGL ES >= 3.0, or if
    * the GL_EXT_unpack_subimage extension for OpenGL ES 2.0 is available
@@ -295,7 +314,7 @@ gdk_gl_context_upload_texture (GdkGLContext    *context,
     {
       glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
 
-      glTexImage2D (texture_target, 0, GL_RGBA, width, height, 0, gl_format, gl_type, data);
+      glTexImage2D (texture_target, 0, gl_internalformat, width, height, 0, gl_format, gl_type, data);
       glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
     }
   else if ((!priv->use_es ||
@@ -303,14 +322,14 @@ gdk_gl_context_upload_texture (GdkGLContext    *context,
     {
       glPixelStorei (GL_UNPACK_ROW_LENGTH, stride / bpp);
 
-      glTexImage2D (texture_target, 0, GL_RGBA, width, height, 0, gl_format, gl_type, data);
+      glTexImage2D (texture_target, 0, gl_internalformat, width, height, 0, gl_format, gl_type, data);
 
       glPixelStorei (GL_UNPACK_ROW_LENGTH, 0);
     }
   else
     {
       int i;
-      glTexImage2D (texture_target, 0, GL_RGBA, width, height, 0, gl_format, gl_type, NULL);
+      glTexImage2D (texture_target, 0, gl_internalformat, width, height, 0, gl_format, gl_type, NULL);
       for (i = 0; i < height; i++)
         glTexSubImage2D (texture_target, 0, 0, i, width, 1, gl_format, gl_type, data + (i * stride));
     }

gdk/gdkgltexture.c

@@ -20,7 +20,8 @@
 
 #include "gdkgltextureprivate.h"
 
-#include "gdkcairo.h"
+#include "gdkdisplayprivate.h"
+#include "gdkmemorytextureprivate.h"
 #include "gdktextureprivate.h"
 
 #include <epoxy/gl.h>
@@ -37,7 +38,7 @@ struct _GdkGLTexture {
   GdkGLContext *context;
   guint id;
 
-  cairo_surface_t *saved;
+  GdkTexture *saved;
 
   GDestroyNotify destroy;
   gpointer data;
@@ -64,50 +65,239 @@ gdk_gl_texture_dispose (GObject *object)
   g_clear_object (&self->context);
   self->id = 0;
 
-  if (self->saved)
-    {
-      cairo_surface_destroy (self->saved);
-      self->saved = NULL;
-    }
+  g_clear_object (&self->saved);
 
   G_OBJECT_CLASS (gdk_gl_texture_parent_class)->dispose (object);
 }
 
+typedef struct _InvokeData
+{
+  GdkGLTexture *self;
+  volatile int spinlock;
+  GFunc func;
+  gpointer data;
+} InvokeData;
+
+static gboolean
+gdk_gl_texture_invoke_callback (gpointer data)
+{
+  InvokeData *invoke = data;
+  GdkGLContext *context;
+
+  context = gdk_display_get_gl_context (gdk_gl_context_get_display (invoke->self->context));
+
+  gdk_gl_context_make_current (context);
+  glBindTexture (GL_TEXTURE_2D, invoke->self->id);
+
+  invoke->func (invoke->self, invoke->data);
+
+  g_atomic_int_set (&invoke->spinlock, 1);
+
+  return FALSE;
+}
+
 static void
-gdk_gl_texture_download (GdkTexture         *texture,
-                         const GdkRectangle *area,
-                         guchar             *data,
-                         gsize               stride)
+gdk_gl_texture_run (GdkGLTexture *self,
+                    GFunc         func,
+                    gpointer      data)
+{
+  InvokeData invoke = { self, 0, func, data };
+
+  g_main_context_invoke (NULL, gdk_gl_texture_invoke_callback, &invoke);
+
+  while (g_atomic_int_get (&invoke.spinlock) == 0);
+}
+
+static void
+gdk_gl_texture_do_download_texture (gpointer texture_,
+                                    gpointer result_)
+{
+  GdkTexture *texture = texture_;
+  GdkTexture **result = result_;
+  GdkMemoryFormat format;
+  GLint internal_format, gl_format, gl_type;
+  guchar *data;
+  gsize stride;
+  GBytes *bytes;
+
+  glGetTexLevelParameteriv (GL_TEXTURE_2D, 0, GL_TEXTURE_INTERNAL_FORMAT, &internal_format);
+
+  switch (internal_format)
+  {
+    case GL_RGB8:
+      format = GDK_MEMORY_R8G8B8;
+      gl_format = GL_RGB;
+      gl_type = GL_UNSIGNED_BYTE;
+      break;
+
+    case GL_RGBA8:
+      format = GDK_MEMORY_R8G8B8A8_PREMULTIPLIED;
+      gl_format = GL_RGBA;
+      gl_type = GL_UNSIGNED_BYTE;
+      break;
+
+    case GL_RGB16:
+      format = GDK_MEMORY_R16G16B16;
+      gl_format = GL_RGB;
+      gl_type = GL_UNSIGNED_SHORT;
+      break;
+
+    case GL_RGBA16:
+      format = GDK_MEMORY_R16G16B16A16_PREMULTIPLIED;
+      gl_format = GL_RGBA;
+      gl_type = GL_UNSIGNED_SHORT;
+      break;
+
+    case GL_RGB16F:
+      format = GDK_MEMORY_R16G16B16_FLOAT;
+      gl_format = GL_RGB;
+      gl_type = GL_HALF_FLOAT;
+      break;
+
+    case GL_RGBA16F:
+      format = GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED;
+      gl_format = GL_RGBA;
+      gl_type = GL_HALF_FLOAT;
+      break;
+
+    case GL_RGB32F:
+      format = GDK_MEMORY_R32G32B32_FLOAT;
+      gl_format = GL_RGB;
+      gl_type = GL_FLOAT;
+      break;
+
+    case GL_RGBA32F:
+      format = GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED;
+      gl_format = GL_RGBA;
+      gl_type = GL_FLOAT;
+      break;
+
+    default:
+      g_warning ("Texture in unexpected format 0x%X (%d). File a bug about adding it to GTK", internal_format, internal_format);
+      /* fallback to the dumbest possible format
+       * so that even age old GLES can do it */
+      format = GDK_MEMORY_R8G8B8A8_PREMULTIPLIED;
+      gl_format = GL_RGBA;
+      gl_type = GL_UNSIGNED_BYTE;
+      break;
+  }
+
+  stride = gdk_memory_format_bytes_per_pixel (format) * texture->width;
+  data = g_malloc (stride * texture->height);
+
+  glGetTexImage (GL_TEXTURE_2D,
+                 0,
+                 gl_format,
+                 gl_type,
+                 data);
+
+  bytes = g_bytes_new_take (data, stride * texture->height);
+  *result = gdk_memory_texture_new (texture->width,
+                                    texture->height,
+                                    format,
+                                    bytes,
+                                    stride);
+
+  g_bytes_unref (bytes);
+}
+
+static GdkTexture *
+gdk_gl_texture_download_texture (GdkTexture *texture)
 {
   GdkGLTexture *self = GDK_GL_TEXTURE (texture);
-  cairo_surface_t *surface;
-  cairo_t *cr;
+  GdkTexture *result;
 
-  surface = cairo_image_surface_create_for_data (data,
-                                                 CAIRO_FORMAT_ARGB32,
-                                                 area->width, area->height,
-                                                 stride);
+  if (self->saved)
+    return g_object_ref (self->saved);
 
-  cr = cairo_create (surface);
+  gdk_gl_texture_run (self, gdk_gl_texture_do_download_texture, &result);
+
+  return result;
+}
+
+static void
+gdk_gl_texture_do_download (gpointer texture,
+                            gpointer data)
+{
+  glGetTexImage (GL_TEXTURE_2D,
+                 0,
+                 GL_BGRA,
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
+                 GL_UNSIGNED_INT_8_8_8_8_REV,
+#elif G_BYTE_ORDER == G_BIG_ENDIAN
+                 GL_UNSIGNED_BYTE,
+#else
+#error "Unknown byte order for gdk_gl_texture_download()"
+#endif
+                 data);
+
+}
+
+static void
+gdk_gl_texture_download (GdkTexture *texture,
+                         guchar     *data,
+                         gsize       stride)
+{
+  GdkGLTexture *self = GDK_GL_TEXTURE (texture);
 
   if (self->saved)
     {
-      cairo_set_source_surface (cr, self->saved, 0, 0);
-      cairo_paint (cr);
+      gdk_texture_download (self->saved, data, stride);
+      return;
     }
-  else
+
+  if (gdk_gl_context_get_use_es (self->context) ||
+      stride != texture->width * 4)
     {
-      GdkSurface *gl_surface;
-
-      gl_surface = gdk_gl_context_get_surface (self->context);
-      gdk_cairo_draw_from_gl (cr, gl_surface, self->id, GL_TEXTURE, 1, 
-                              area->x, area->y,
-                              area->width, area->height);
+      GDK_TEXTURE_CLASS (gdk_gl_texture_parent_class)->download (texture, data, stride);
+      return;
     }
 
-  cairo_destroy (cr);
-  cairo_surface_finish (surface);
-  cairo_surface_destroy (surface);
+  gdk_gl_texture_run (self, gdk_gl_texture_do_download, data);
+}
+
+static void
+gdk_gl_texture_do_download_float (gpointer texture,
+                                  gpointer data)
+{
+  glGetTexImage (GL_TEXTURE_2D,
+                 0,
+                 GL_RGBA,
+                 GL_FLOAT,
+                 data);
+}
+
+static void
+gdk_gl_texture_download_float (GdkTexture *texture,
+                               float      *data,
+                               gsize       stride)
+{
+  GdkGLTexture *self = GDK_GL_TEXTURE (texture);
+  int width, height, y;
+  float *copy;
+
+  if (self->saved)
+    {
+      gdk_texture_download_float (self->saved, data, stride);
+      return;
+    }
+
+  width = gdk_texture_get_width (texture);
+  height = gdk_texture_get_height (texture);
+
+  if (stride == width * 4)
+    {
+      gdk_gl_texture_run (self, gdk_gl_texture_do_download_float, data);
+      return;
+    }
+
+  copy = g_new (float, width * height * 4);
+
+  gdk_gl_texture_run (self, gdk_gl_texture_do_download_float, copy);
+  for (y = 0; y < height; y++)
+    memcpy (data + y * stride, copy + y * 4 * width, 4 * width);
+
+  g_free (copy);
 }
 
 static void
@@ -116,7 +306,9 @@ gdk_gl_texture_class_init (GdkGLTextureClass *klass)
   GdkTextureClass *texture_class = GDK_TEXTURE_CLASS (klass);
   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
 
+  texture_class->download_texture = gdk_gl_texture_download_texture;
   texture_class->download = gdk_gl_texture_download;
+  texture_class->download_float = gdk_gl_texture_download_float;
   gobject_class->dispose = gdk_gl_texture_dispose;
 }
 
@@ -150,24 +342,10 @@ gdk_gl_texture_get_id (GdkGLTexture *self)
 void
 gdk_gl_texture_release (GdkGLTexture *self)
 {
-  GdkSurface *surface;
-  GdkTexture *texture;
-  cairo_t *cr;
-
   g_return_if_fail (GDK_IS_GL_TEXTURE (self));
   g_return_if_fail (self->saved == NULL);
 
-  texture = GDK_TEXTURE (self);
-  self->saved = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
-                                            texture->width, texture->height);
-
-  cr = cairo_create (self->saved);
-
-  surface = gdk_gl_context_get_surface (self->context);
-  gdk_cairo_draw_from_gl (cr, surface, self->id, GL_TEXTURE, 1, 0, 0,
-                          texture->width, texture->height);
-
-  cairo_destroy (cr);
+  self->saved = gdk_texture_download_texture (GDK_TEXTURE (self));
 
   if (self->destroy)
     {

gdk/gdkhsla.c

@@ -17,12 +17,12 @@
 
 #include "config.h"
 
-#include "gtkhslaprivate.h"
+#include "gdkhslaprivate.h"
 
 #include <math.h>
 
 void
-_gtk_hsla_init_from_rgba (GtkHSLA       *hsla,
+_gdk_hsla_init_from_rgba (GdkHSLA       *hsla,
                           const GdkRGBA *rgba)
 {
   float min;
@@ -31,21 +31,21 @@ _gtk_hsla_init_from_rgba (GtkHSLA       *hsla,
   float green;
   float blue;
   float delta;
-  
+
   g_return_if_fail (hsla != NULL);
   g_return_if_fail (rgba != NULL);
 
   red = rgba->red;
   green = rgba->green;
   blue = rgba->blue;
-  
+
   if (red > green)
     {
       if (red > blue)
         max = red;
       else
         max = blue;
-      
+
       if (green < blue)
         min = green;
       else
@@ -57,25 +57,25 @@ _gtk_hsla_init_from_rgba (GtkHSLA       *hsla,
         max = green;
       else
         max = blue;
-      
+
       if (red < blue)
         min = red;
       else
         min = blue;
     }
-  
+
   hsla->lightness = (max + min) / 2;
   hsla->saturation = 0;
   hsla->hue = 0;
   hsla->alpha = rgba->alpha;
-  
+
   if (max != min)
     {
       if (hsla->lightness <= 0.5)
         hsla->saturation = (max - min) / (max + min);
       else
         hsla->saturation = (max - min) / (2 - max - min);
-      
+
       delta = max -min;
       if (red == max)
         hsla->hue = (green - blue) / delta;
@@ -83,7 +83,7 @@ _gtk_hsla_init_from_rgba (GtkHSLA       *hsla,
         hsla->hue = 2 + (blue - red) / delta;
       else if (blue == max)
         hsla->hue = 4 + (red - green) / delta;
-      
+
       hsla->hue *= 60;
       if (hsla->hue < 0.0)
         hsla->hue += 360;
@@ -92,22 +92,22 @@ _gtk_hsla_init_from_rgba (GtkHSLA       *hsla,
 
 void
 _gdk_rgba_init_from_hsla (GdkRGBA       *rgba,
-                          const GtkHSLA *hsla)
+                          const GdkHSLA *hsla)
 {
   float hue;
   float lightness;
   float saturation;
   float m1, m2;
-  
+
   lightness = hsla->lightness;
   saturation = hsla->saturation;
-  
+
   if (lightness <= 0.5)
     m2 = lightness * (1 + saturation);
   else
     m2 = lightness + saturation - lightness * saturation;
   m1 = 2 * lightness - m2;
-  
+
   rgba->alpha = hsla->alpha;
 
   if (saturation == 0)
@@ -123,7 +123,7 @@ _gdk_rgba_init_from_hsla (GdkRGBA       *rgba,
         hue -= 360;
       while (hue < 0)
         hue += 360;
-      
+
       if (hue < 60)
         rgba->red = m1 + (m2 - m1) * hue / 60;
       else if (hue < 180)
@@ -132,13 +132,13 @@ _gdk_rgba_init_from_hsla (GdkRGBA       *rgba,
         rgba->red = m1 + (m2 - m1) * (240 - hue) / 60;
       else
         rgba->red = m1;
-      
+
       hue = hsla->hue;
       while (hue > 360)
         hue -= 360;
       while (hue < 0)
         hue += 360;
-      
+
       if (hue < 60)
         rgba->green = m1 + (m2 - m1) * hue / 60;
       else if (hue < 180)
@@ -147,13 +147,13 @@ _gdk_rgba_init_from_hsla (GdkRGBA       *rgba,
         rgba->green = m1 + (m2 - m1) * (240 - hue) / 60;
       else
         rgba->green = m1;
-      
+
       hue = hsla->hue - 120;
       while (hue > 360)
         hue -= 360;
       while (hue < 0)
         hue += 360;
-      
+
       if (hue < 60)
         rgba->blue = m1 + (m2 - m1) * hue / 60;
       else if (hue < 180)
@@ -166,8 +166,8 @@ _gdk_rgba_init_from_hsla (GdkRGBA       *rgba,
 }
 
 void
-_gtk_hsla_shade (GtkHSLA       *dest,
-                 const GtkHSLA *src,
+_gdk_hsla_shade (GdkHSLA       *dest,
+                 const GdkHSLA *src,
                  float          factor)
 {
   g_return_if_fail (dest != NULL);

gdk/gdkhslaprivate.h

@@ -22,23 +22,23 @@
 
 G_BEGIN_DECLS
 
-typedef struct _GtkHSLA GtkHSLA;
+typedef struct _GdkHSLA GdkHSLA;
 
-struct _GtkHSLA {
+struct _GdkHSLA {
   float hue;
   float saturation;
   float lightness;
   float alpha;
 };
 
-void            _gtk_hsla_init_from_rgba    (GtkHSLA          *hsla,
+void            _gdk_hsla_init_from_rgba    (GdkHSLA          *hsla,
                                              const GdkRGBA    *rgba);
 /* Yes, I can name that function like this! */
 void            _gdk_rgba_init_from_hsla    (GdkRGBA          *rgba,
-                                             const GtkHSLA    *hsla);
+                                             const GdkHSLA    *hsla);
 
-void            _gtk_hsla_shade             (GtkHSLA          *dest,
-                                             const GtkHSLA    *src,
+void            _gdk_hsla_shade             (GdkHSLA          *dest,
+                                             const GdkHSLA    *src,
                                              float             factor);
 
 G_END_DECLS

gdk/gdkmemorytexture.c

@@ -20,6 +20,7 @@
 #include "config.h"
 
 #include "gdkmemorytextureprivate.h"
+#include "gsk/ngl/fp16private.h"
 
 /**
  * GdkMemoryTexture:
@@ -49,6 +50,10 @@ gdk_memory_format_bytes_per_pixel (GdkMemoryFormat format)
 {
   switch (format)
     {
+    case GDK_MEMORY_R8G8B8:
+    case GDK_MEMORY_B8G8R8:
+      return 3;
+
     case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
     case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
     case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
@@ -58,9 +63,19 @@ gdk_memory_format_bytes_per_pixel (GdkMemoryFormat format)
     case GDK_MEMORY_A8B8G8R8:
       return 4;
 
-    case GDK_MEMORY_R8G8B8:
-    case GDK_MEMORY_B8G8R8:
-      return 3;
+    case GDK_MEMORY_R16G16B16:
+    case GDK_MEMORY_R16G16B16_FLOAT:
+      return 6;
+
+    case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
+    case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
+      return 8;
+
+    case GDK_MEMORY_R32G32B32_FLOAT:
+      return 12;
+
+    case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
+      return 16;
 
     case GDK_MEMORY_N_FORMATS:
     default:
@@ -69,6 +84,41 @@ gdk_memory_format_bytes_per_pixel (GdkMemoryFormat format)
     }
 }
 
+static gsize
+gdk_memory_format_alignment (GdkMemoryFormat format)
+{
+  switch (format)
+    {
+    case GDK_MEMORY_R8G8B8:
+    case GDK_MEMORY_B8G8R8:
+    case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
+    case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
+    case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
+    case GDK_MEMORY_B8G8R8A8:
+    case GDK_MEMORY_A8R8G8B8:
+    case GDK_MEMORY_R8G8B8A8:
+    case GDK_MEMORY_A8B8G8R8:
+      return G_ALIGNOF (guchar);
+
+    case GDK_MEMORY_R16G16B16:
+    case GDK_MEMORY_R16G16B16_FLOAT:
+      return G_ALIGNOF (guint16);
+
+    case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
+    case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
+      return G_ALIGNOF (guint16);
+
+    case GDK_MEMORY_R32G32B32_FLOAT:
+    case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
+      return G_ALIGNOF (float);
+
+    case GDK_MEMORY_N_FORMATS:
+    default:
+      g_assert_not_reached ();
+      return G_ALIGNOF (double);
+    }
+}
+
 static void
 gdk_memory_texture_dispose (GObject *object)
 {
@@ -79,22 +129,41 @@ gdk_memory_texture_dispose (GObject *object)
   G_OBJECT_CLASS (gdk_memory_texture_parent_class)->dispose (object);
 }
 
+static GdkTexture *
+gdk_memory_texture_download_texture (GdkTexture *texture)
+{
+  return g_object_ref (texture);
+}
+
 static void
-gdk_memory_texture_download (GdkTexture         *texture,
-                             const GdkRectangle *area,
-                             guchar             *data,
-                             gsize               stride)
+gdk_memory_texture_download (GdkTexture *texture,
+                             guchar     *data,
+                             gsize       stride)
 {
   GdkMemoryTexture *self = GDK_MEMORY_TEXTURE (texture);
 
   gdk_memory_convert (data, stride,
-                      GDK_MEMORY_CAIRO_FORMAT_ARGB32,
-                      (guchar *) g_bytes_get_data (self->bytes, NULL)
-                        + area->x * gdk_memory_format_bytes_per_pixel (self->format)
-                        + area->y * self->stride,
+                      GDK_MEMORY_CONVERT_DOWNLOAD,
+                      (guchar *) g_bytes_get_data (self->bytes, NULL),
                       self->stride,
                       self->format,
-                      area->width, area->height);
+                      gdk_texture_get_width (texture),
+                      gdk_texture_get_height (texture));
+}
+
+static void
+gdk_memory_texture_download_float (GdkTexture *texture,
+                                   float      *data,
+                                   gsize       stride)
+{
+  GdkMemoryTexture *self = GDK_MEMORY_TEXTURE (texture);
+
+  gdk_memory_convert_to_float (data, stride,
+                               (guchar *) g_bytes_get_data (self->bytes, NULL),
+                               self->stride,
+                               self->format,
+                               gdk_texture_get_width (texture),
+                               gdk_texture_get_height (texture));
 }
 
 static void
@@ -103,7 +172,9 @@ gdk_memory_texture_class_init (GdkMemoryTextureClass *klass)
   GdkTextureClass *texture_class = GDK_TEXTURE_CLASS (klass);
   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
 
+  texture_class->download_texture = gdk_memory_texture_download_texture;
   texture_class->download = gdk_memory_texture_download;
+  texture_class->download_float = gdk_memory_texture_download_float;
   gobject_class->dispose = gdk_memory_texture_dispose;
 }
 
@@ -112,6 +183,41 @@ gdk_memory_texture_init (GdkMemoryTexture *self)
 {
 }
 
+static GBytes *
+gdk_memory_sanitize (GBytes          *bytes,
+                     int              width,
+                     int              height,
+                     GdkMemoryFormat  format,
+                     gsize            stride,
+                     gsize           *out_stride)
+{
+  gsize align, size, copy_stride, bpp;
+  const guchar *data;
+  guchar *copy;
+  int y;
+
+  data = g_bytes_get_data (bytes, &size);
+  align = gdk_memory_format_alignment (format);
+
+  if (GPOINTER_TO_SIZE (data) % align == 0 &&
+      stride % align == 0)
+    {
+      *out_stride = stride;
+      return g_bytes_ref (bytes);
+    }
+
+  bpp = gdk_memory_format_bytes_per_pixel (format);
+  copy_stride = bpp * width;
+  /* align to multiples of 4, just to be sure */
+  copy_stride = (copy_stride + 3) & ~3;
+  copy = g_malloc (copy_stride * height);
+  for (y = 0; y < height; y++)
+    memcpy (copy + y * copy_stride, data + y * stride, bpp * width);
+
+  *out_stride = copy_stride;
+  return g_bytes_new_take (copy, copy_stride * height);
+}
+
 /**
  * gdk_memory_texture_new:
  * @width: the width of the texture
@@ -136,13 +242,20 @@ gdk_memory_texture_new (int              width,
 {
   GdkMemoryTexture *self;
 
+  g_return_val_if_fail (width > 0, NULL);
+  g_return_val_if_fail (height > 0, NULL);
+  g_return_val_if_fail (bytes != NULL, NULL);
+  g_return_val_if_fail (stride >= width * gdk_memory_format_bytes_per_pixel (format), NULL);
+
+  bytes = gdk_memory_sanitize (bytes, width, height, format, stride, &stride);
+
   self = g_object_new (GDK_TYPE_MEMORY_TEXTURE,
                        "width", width,
                        "height", height,
                        NULL);
 
   self->format = format;
-  self->bytes = g_bytes_ref (bytes);
+  self->bytes = bytes;
   self->stride = stride;
 
   return GDK_TEXTURE (self);
@@ -283,6 +396,109 @@ SWIZZLE_PREMULTIPLY (3,0,1,2, 0,1,2,3)
 SWIZZLE_PREMULTIPLY (3,0,1,2, 3,0,1,2)
 SWIZZLE_PREMULTIPLY (3,0,1,2, 0,3,2,1)
 
+#define CONVERT_FUNC(name,suffix,R,G,B,A,step) \
+static void \
+convert_ ## name ## _to_ ## suffix (guchar       *dest_data, \
+                                    gsize         dest_stride, \
+                                    const guchar *src_data, \
+                                    gsize         src_stride, \
+                                    gsize         width, \
+                                    gsize         height) \
+{ \
+  gsize x, y; \
+\
+  for (y = 0; y < height; y++) \
+    { \
+      for (x = 0; x < width; x++) \
+        { \
+          guchar conv[4]; \
+          convert_pixel_ ## name (conv, src_data + step * x); \
+          dest_data[4 * x + R] = conv[0]; \
+          dest_data[4 * x + G] = conv[1]; \
+          dest_data[4 * x + B] = conv[2]; \
+          dest_data[4 * x + A] = conv[3]; \
+        } \
+\
+      dest_data += dest_stride; \
+      src_data += src_stride; \
+    } \
+}
+
+#define CONVERT_FUNCS(name,step) \
+CONVERT_FUNC(name, download_le, 2, 1, 0, 3, step) \
+CONVERT_FUNC(name, download_be, 1, 2, 3, 0, step) \
+CONVERT_FUNC(name, gles_rgba, 0, 1, 2, 3, step) \
+
+static inline void
+convert_pixel_rgb16 (guchar *dest_data, const guchar *src_data)
+{
+  const guint16 *src = (const guint16 *) src_data;
+  dest_data[0] = (guchar)(src[0] >> 8);
+  dest_data[1] = (guchar)(src[1] >> 8);
+  dest_data[2] = (guchar)(src[2] >> 8);
+  dest_data[3] = 0xFF;
+}
+CONVERT_FUNCS(rgb16, 3 * sizeof (guint16))
+
+static inline void
+convert_pixel_rgba16 (guchar *dest_data, const guchar *src_data)
+{
+  const guint16 *src = (const guint16 *) src_data;
+  dest_data[0] = (guchar)(src[0] >> 8);
+  dest_data[1] = (guchar)(src[1] >> 8);
+  dest_data[2] = (guchar)(src[2] >> 8);
+  dest_data[3] = (guchar)(src[3] >> 8);
+}
+CONVERT_FUNCS(rgba16, 4 * sizeof (guint16))
+
+static inline void
+convert_pixel_rgb16f (guchar *dest_data, const guchar *src_data)
+{
+  float src[4];
+  guint16 tmp[4];
+  memcpy(tmp, src_data, sizeof(guint16) * 3);
+  half_to_float4(tmp, src);
+  dest_data[0] = CLAMP (src[0] * 256.f, 0.f, 255.f);
+  dest_data[1] = CLAMP (src[1] * 256.f, 0.f, 255.f);
+  dest_data[2] = CLAMP (src[2] * 256.f, 0.f, 255.f);
+  dest_data[3] = 0xFF;
+}
+CONVERT_FUNCS(rgb16f, 3 * sizeof (guint16))
+
+static inline void
+convert_pixel_rgba16f (guchar *dest_data, const guchar *src_data)
+{
+  float src[4];
+  half_to_float4((const guint16 *) src_data, src);
+  dest_data[0] = CLAMP (src[0] * 256.f, 0.f, 255.f);
+  dest_data[1] = CLAMP (src[1] * 256.f, 0.f, 255.f);
+  dest_data[2] = CLAMP (src[2] * 256.f, 0.f, 255.f);
+  dest_data[3] = CLAMP (src[3] * 256.f, 0.f, 255.f);
+}
+CONVERT_FUNCS(rgba16f, 4 * sizeof (guint16))
+
+static inline void
+convert_pixel_rgb32f (guchar *dest_data, const guchar *src_data)
+{
+  float *src = (float *) src_data;
+  dest_data[0] = CLAMP (src[0] * 256.f, 0.f, 255.f);
+  dest_data[1] = CLAMP (src[1] * 256.f, 0.f, 255.f);
+  dest_data[2] = CLAMP (src[2] * 256.f, 0.f, 255.f);
+  dest_data[3] = 0xFF;
+}
+CONVERT_FUNCS(rgb32f, 3 * sizeof (float))
+
+static inline void
+convert_pixel_rgba32f (guchar *dest_data, const guchar *src_data)
+{
+  float *src = (float *) src_data;
+  dest_data[0] = CLAMP (src[0] * 256.f, 0.f, 255.f);
+  dest_data[1] = CLAMP (src[1] * 256.f, 0.f, 255.f);
+  dest_data[2] = CLAMP (src[2] * 256.f, 0.f, 255.f);
+  dest_data[3] = CLAMP (src[3] * 256.f, 0.f, 255.f);
+}
+CONVERT_FUNCS(rgba32f, 4 * sizeof (float))
+
 typedef void (* ConversionFunc) (guchar       *dest_data,
                                  gsize         dest_stride,
                                  const guchar *src_data,
@@ -290,7 +506,7 @@ typedef void (* ConversionFunc) (guchar       *dest_data,
                                  gsize         width,
                                  gsize         height);
 
-static ConversionFunc converters[GDK_MEMORY_N_FORMATS][3] =
+static ConversionFunc converters[GDK_MEMORY_N_FORMATS][GDK_MEMORY_N_CONVERSIONS] =
 {
   { convert_memcpy, convert_swizzle3210, convert_swizzle2103 },
   { convert_swizzle3210, convert_memcpy, convert_swizzle3012 },
@@ -300,21 +516,192 @@ static ConversionFunc converters[GDK_MEMORY_N_FORMATS][3] =
   { convert_swizzle_premultiply_3210_3012, convert_swizzle_premultiply_0123_3012, convert_swizzle_premultiply_3012_3012 },
   { convert_swizzle_premultiply_3210_0321, convert_swizzle_premultiply_0123_0321, convert_swizzle_premultiply_3012_0321 },
   { convert_swizzle_opaque_3210, convert_swizzle_opaque_0123, convert_swizzle_opaque_3012 },
-  { convert_swizzle_opaque_3012, convert_swizzle_opaque_0321, convert_swizzle_opaque_3210 }
+  { convert_swizzle_opaque_3012, convert_swizzle_opaque_0321, convert_swizzle_opaque_3210 },
+  { convert_rgb16_to_download_le, convert_rgb16_to_download_be, convert_rgb16_to_gles_rgba },
+  { convert_rgba16_to_download_le, convert_rgba16_to_download_be, convert_rgba16_to_gles_rgba },
+  { convert_rgb16f_to_download_le, convert_rgb16f_to_download_be, convert_rgb16f_to_gles_rgba },
+  { convert_rgba16f_to_download_le, convert_rgba16f_to_download_be, convert_rgba16f_to_gles_rgba },
+  { convert_rgb32f_to_download_le, convert_rgb32f_to_download_be, convert_rgb32f_to_gles_rgba },
+  { convert_rgba32f_to_download_le, convert_rgba32f_to_download_be, convert_rgba32f_to_gles_rgba }
 };
 
 void
-gdk_memory_convert (guchar          *dest_data,
-                    gsize            dest_stride,
-                    GdkMemoryFormat  dest_format,
-                    const guchar    *src_data,
-                    gsize            src_stride,
-                    GdkMemoryFormat  src_format,
-                    gsize            width,
-                    gsize            height)
+gdk_memory_convert (guchar              *dest_data,
+                    gsize                dest_stride,
+                    GdkMemoryConversion  dest_format,
+                    const guchar        *src_data,
+                    gsize                src_stride,
+                    GdkMemoryFormat      src_format,
+                    gsize                width,
+                    gsize                height)
 {
   g_assert (dest_format < 3);
   g_assert (src_format < GDK_MEMORY_N_FORMATS);
 
   converters[src_format][dest_format] (dest_data, dest_stride, src_data, src_stride, width, height);
 }
+
+#define CONVERT_FLOAT(R,G,B,A,premultiply) G_STMT_START {\
+  for (y = 0; y < height; y++) \
+    { \
+      for (x = 0; x < width; x++) \
+        { \
+          if (A >= 0) \
+            { \
+              dest_data[4 * x + 0] = src_data[4 * x + R] / 255.0f; \
+              dest_data[4 * x + 1] = src_data[4 * x + G] / 255.0f; \
+              dest_data[4 * x + 2] = src_data[4 * x + B] / 255.0f; \
+              dest_data[4 * x + 3] = src_data[4 * x + A] / 255.0f; \
+              if (premultiply) \
+                { \
+                  dest_data[4 * x + 0] *= dest_data[4 * x + 3]; \
+                  dest_data[4 * x + 1] *= dest_data[4 * x + 3]; \
+                  dest_data[4 * x + 2] *= dest_data[4 * x + 3]; \
+                } \
+            } \
+          else \
+            { \
+              dest_data[4 * x + 0] = src_data[3 * x + R] / 255.0f; \
+              dest_data[4 * x + 1] = src_data[3 * x + G] / 255.0f; \
+              dest_data[4 * x + 2] = src_data[3 * x + B] / 255.0f; \
+              dest_data[4 * x + 3] = 1.0; \
+            } \
+        } \
+\
+      dest_data += dest_stride; \
+      src_data += src_stride; \
+    } \
+}G_STMT_END
+
+#define CONVERT_FLOAT_PIXEL(func,step) G_STMT_START{\
+  for (y = 0; y < height; y++) \
+    { \
+      for (x = 0; x < width; x++) \
+        { \
+          func (dest_data + 4 * x, src_data + step * x); \
+        } \
+\
+      dest_data += dest_stride; \
+      src_data += src_stride; \
+    } \
+}G_STMT_END
+
+static inline void
+convert_rgb16_to_float (float *dest, const guchar *src_data)
+{
+  const guint16 *src = (const guint16 *) src_data;
+  dest[0] = src[0] / 65535.f;
+  dest[1] = src[1] / 65535.f;
+  dest[2] = src[2] / 65535.f;
+  dest[3] = 1.0;
+}
+
+static inline void
+convert_rgba16_to_float (float *dest, const guchar *src_data)
+{
+  const guint16 *src = (const guint16 *) src_data;
+  dest[0] = src[0] / 65535.f;
+  dest[1] = src[1] / 65535.f;
+  dest[2] = src[2] / 65535.f;
+  dest[3] = 1.0;
+}
+
+static inline void
+convert_rgb16f_to_float (float *dest, const guchar *src_data)
+{
+  guint16 tmp[4];
+  memcpy(tmp, src_data, sizeof(guint16) * 3);
+  tmp[3] = FP16_ONE;
+  half_to_float4 (tmp, dest);
+}
+
+static inline void
+convert_rgba16f_to_float (float *dest, const guchar *src_data)
+{
+  half_to_float4 ((const guint16 *) src_data, dest);
+}
+
+static inline void
+convert_rgb32f_to_float (float *dest, const guchar *src_data)
+{
+  const float *src = (const float *) src_data;
+  dest[0] = src[0];
+  dest[1] = src[1];
+  dest[2] = src[2];
+  dest[3] = 1.0;
+}
+
+static inline void
+convert_rgba32f_to_float (float *dest, const guchar *src_data)
+{
+  const float *src = (const float *) src_data;
+  dest[0] = src[0];
+  dest[1] = src[1];
+  dest[2] = src[2];
+  dest[3] = src[3];
+}
+
+void
+gdk_memory_convert_to_float (float           *dest_data,
+                             gsize            dest_stride,
+                             const guchar    *src_data,
+                             gsize            src_stride,
+                             GdkMemoryFormat  src_format,
+                             gsize            width,
+                             gsize            height)
+{
+  gsize x, y;
+
+  switch (src_format)
+  {
+    case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
+      CONVERT_FLOAT (2, 1, 0, 3, FALSE);
+      break;
+    case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
+      CONVERT_FLOAT (1, 2, 3, 0, FALSE);
+      break;
+    case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
+      CONVERT_FLOAT (0, 1, 2, 3, FALSE);
+      break;
+    case GDK_MEMORY_B8G8R8A8:
+      CONVERT_FLOAT (2, 1, 0, 3, TRUE);
+      break;
+    case GDK_MEMORY_A8R8G8B8:
+      CONVERT_FLOAT (1, 2, 3, 0, TRUE);
+      break;
+    case GDK_MEMORY_R8G8B8A8:
+      CONVERT_FLOAT (0, 1, 2, 3, TRUE);
+      break;
+    case GDK_MEMORY_A8B8G8R8:
+      CONVERT_FLOAT (3, 2, 1, 0, TRUE);
+      break;
+    case GDK_MEMORY_R8G8B8:
+      CONVERT_FLOAT (0, 1, 2, -1, FALSE);
+      break;
+    case GDK_MEMORY_B8G8R8:
+      CONVERT_FLOAT (2, 1, 0, -1, FALSE);
+      break;
+    case GDK_MEMORY_R16G16B16:
+      CONVERT_FLOAT_PIXEL (convert_rgb16_to_float, 3 * sizeof (guint16));
+      break;
+    case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
+      CONVERT_FLOAT_PIXEL (convert_rgba16_to_float, 4 * sizeof (guint16));
+      break;
+    case GDK_MEMORY_R16G16B16_FLOAT:
+      CONVERT_FLOAT_PIXEL (convert_rgb16f_to_float, 3 * sizeof (guint16));
+      break;
+    case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
+      CONVERT_FLOAT_PIXEL (convert_rgba16f_to_float, 4 * sizeof (guint16));
+      break;
+    case GDK_MEMORY_R32G32B32_FLOAT:
+      CONVERT_FLOAT_PIXEL (convert_rgb32f_to_float, 3 * sizeof (float));
+      break;
+    case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
+      CONVERT_FLOAT_PIXEL (convert_rgba32f_to_float, 4 * sizeof (float));
+      break;
+
+    case GDK_MEMORY_N_FORMATS:
+    default:
+      g_assert_not_reached();
+  }
+}

gdk/gdkmemorytexture.h

@@ -42,6 +42,20 @@ G_BEGIN_DECLS
  * @GDK_MEMORY_A8B8G8R8: 4 bytes; for alpha, blue, green, red.
  * @GDK_MEMORY_R8G8B8: 3 bytes; for red, green, blue. The data is opaque.
  * @GDK_MEMORY_B8G8R8: 3 bytes; for blue, green, red. The data is opaque.
+ * @GDK_MEMORY_R16G16B16: 3 guint16 values; for red, green, blue. Since 4.6
+ * @GDK_MEMORY_R16G16B16A16_PREMULTIPLIED: 4 guint16 values; for red, green,
+ *   blue, alpha. The color values are premultiplied with the alpha value.
+ *   Since 4.6
+ * @GDK_MEMORY_R16G16B16_FLOAT: 3 half-float values; for red, green, blue.
+ *   The data is opaque. Since 4.6
+ * @GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED: 4 half-float values; for
+ *   red, green, blue and alpha. The color values are premultiplied with
+ *   the alpha value. Since 4.6
+ * @GDK_MEMORY_B32G32R32_FLOAT: 3 float values; for blue, green, red.
+ *   The data is opaque. Since 4.6
+ * @GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED: 4 float values; for
+ *   red, green, blue and alpha. The color values are premultiplied with
+ *   the alpha value. Since 4.6
  * @GDK_MEMORY_N_FORMATS: The number of formats. This value will change as
  *   more formats get added, so do not rely on its concrete integer.
  *
@@ -67,6 +81,12 @@ typedef enum {
   GDK_MEMORY_A8B8G8R8,
   GDK_MEMORY_R8G8B8,
   GDK_MEMORY_B8G8R8,
+  GDK_MEMORY_R16G16B16,
+  GDK_MEMORY_R16G16B16A16_PREMULTIPLIED,
+  GDK_MEMORY_R16G16B16_FLOAT,
+  GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED,
+  GDK_MEMORY_R32G32B32_FLOAT,
+  GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED,
 
   GDK_MEMORY_N_FORMATS
 } GdkMemoryFormat;

gdk/gdkmemorytextureprivate.h

@@ -29,7 +29,21 @@ G_BEGIN_DECLS
 #define GDK_MEMORY_GDK_PIXBUF_OPAQUE GDK_MEMORY_R8G8B8
 #define GDK_MEMORY_GDK_PIXBUF_ALPHA GDK_MEMORY_R8G8B8A8
 
-#define GDK_MEMORY_CAIRO_FORMAT_ARGB32 GDK_MEMORY_DEFAULT
+typedef enum {
+  GDK_MEMORY_CONVERT_DOWNLOAD_LITTLE_ENDIAN,
+  GDK_MEMORY_CONVERT_DOWNLOAD_BIT_ENDIAN,
+  GDK_MEMORY_CONVERT_GLES_RGBA,
+
+  GDK_MEMORY_N_CONVERSIONS
+} GdkMemoryConversion;
+
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
+#define GDK_MEMORY_CONVERT_DOWNLOAD GDK_MEMORY_CONVERT_DOWNLOAD_LITTLE_ENDIAN
+#elif G_BYTE_ORDER == G_BIG_ENDIAN
+#define GDK_MEMORY_CONVERT_DOWNLOAD GDK_MEMORY_CONVERT_DOWNLOAD_BIG_ENDIAN
+#else
+#error "Unknown byte order for GDK_MEMORY_CONVERT_DOWNLOAD"
+#endif
 
 gsize                   gdk_memory_format_bytes_per_pixel   (GdkMemoryFormat    format);
 
@@ -37,14 +51,22 @@ GdkMemoryFormat         gdk_memory_texture_get_format       (GdkMemoryTexture  *
 const guchar *          gdk_memory_texture_get_data         (GdkMemoryTexture  *self);
 gsize                   gdk_memory_texture_get_stride       (GdkMemoryTexture  *self);
 
-void                    gdk_memory_convert                  (guchar            *dest_data,
-                                                             gsize              dest_stride,
-                                                             GdkMemoryFormat    dest_format,
-                                                             const guchar      *src_data,
-                                                             gsize              src_stride,
-                                                             GdkMemoryFormat    src_format,
-                                                             gsize              width,
-                                                             gsize              height);
+void                    gdk_memory_convert                  (guchar                     *dest_data,
+                                                             gsize                       dest_stride,
+                                                             GdkMemoryConversion         dest_format,
+                                                             const guchar               *src_data,
+                                                             gsize                       src_stride,
+                                                             GdkMemoryFormat             src_format,
+                                                             gsize                       width,
+                                                             gsize                       height);
+
+void                    gdk_memory_convert_to_float         (float                      *dest_data,
+                                                             gsize                       dest_stride,
+                                                             const guchar               *src_data,
+                                                             gsize                       src_stride,
+                                                             GdkMemoryFormat             src_format,
+                                                             gsize                       width,
+                                                             gsize                       height);
 
 
 G_END_DECLS

gdk/gdkrgba.c

@@ -30,6 +30,7 @@
 #include <errno.h>
 #include <math.h>
 
+#include "gdkhslaprivate.h"
 
 G_DEFINE_BOXED_TYPE (GdkRGBA, gdk_rgba,
                      gdk_rgba_copy, gdk_rgba_free)
@@ -186,6 +187,7 @@ gdk_rgba_parse (GdkRGBA    *rgba,
                 const char *spec)
 {
   gboolean has_alpha;
+  gboolean is_hsl;
   double r, g, b, a;
   char *str = (char *) spec;
   char *p;
@@ -196,11 +198,26 @@ gdk_rgba_parse (GdkRGBA    *rgba,
   if (strncmp (str, "rgba", 4) == 0)
     {
       has_alpha = TRUE;
+      is_hsl = FALSE;
       str += 4;
     }
   else if (strncmp (str, "rgb", 3) == 0)
     {
       has_alpha = FALSE;
+      is_hsl = FALSE;
+      a = 1;
+      str += 3;
+    }
+  else if (strncmp (str, "hsla", 4) == 0)
+    {
+      has_alpha = TRUE;
+      is_hsl = TRUE;
+      str += 4;
+    }
+  else if (strncmp (str, "hsl", 3) == 0)
+    {
+      has_alpha = FALSE;
+      is_hsl = TRUE;
       a = 1;
       str += 3;
     }
@@ -291,10 +308,22 @@ gdk_rgba_parse (GdkRGBA    *rgba,
 
   if (rgba)
     {
-      rgba->red = CLAMP (r, 0, 1);
-      rgba->green = CLAMP (g, 0, 1);
-      rgba->blue = CLAMP (b, 0, 1);
-      rgba->alpha = CLAMP (a, 0, 1);
+      if (is_hsl)
+        {
+          GdkHSLA hsla;
+          hsla.hue = r * 255;
+          hsla.saturation = CLAMP (g, 0, 1);
+          hsla.lightness = CLAMP (b, 0, 1);
+          hsla.alpha = CLAMP (a, 0, 1);
+          _gdk_rgba_init_from_hsla (rgba, &hsla);
+        }
+      else
+        {
+          rgba->red = CLAMP (r, 0, 1);
+          rgba->green = CLAMP (g, 0, 1);
+          rgba->blue = CLAMP (b, 0, 1);
+          rgba->alpha = CLAMP (a, 0, 1);
+        }
     }
 
   return TRUE;
@@ -462,6 +491,47 @@ parse_color_channel (GtkCssParser *parser,
   }
 }
 
+static guint
+parse_hsla_color_channel (GtkCssParser *parser,
+                          guint         arg,
+                          gpointer      data)
+{
+  GdkHSLA *hsla = data;
+  double dvalue;
+
+  switch (arg)
+  {
+    case 0:
+      if (!gtk_css_parser_consume_number (parser, &dvalue))
+        return 0;
+      hsla->hue = dvalue;
+      return 1;
+
+    case 1:
+      if (!gtk_css_parser_consume_percentage (parser, &dvalue))
+        return 0;
+      hsla->saturation = CLAMP (dvalue, 0.0, 100.0) / 100.0;
+      return 1;
+
+    case 2:
+      if (!gtk_css_parser_consume_percentage (parser, &dvalue))
+        return 0;
+      hsla->lightness = CLAMP (dvalue, 0.0, 100.0) / 100.0;
+      return 1;
+
+    case 3:
+      if (!gtk_css_parser_consume_number (parser, &dvalue))
+        return 0;
+
+      hsla->alpha = CLAMP (dvalue, 0.0, 1.0) / 1.0;
+      return 1;
+
+    default:
+      g_assert_not_reached ();
+      return 0;
+  }
+}
+
 static gboolean
 rgba_init_chars (GdkRGBA    *rgba,
                  const char  s[8])
@@ -501,6 +571,18 @@ gdk_rgba_parser_parse (GtkCssParser *parser,
     {
       return gtk_css_parser_consume_function (parser, 4, 4, parse_color_channel, rgba);
     }
+  else if (gtk_css_token_is_function (token, "hsl") || gtk_css_token_is_function (token, "hsla"))
+    {
+      GdkHSLA hsla;
+
+      hsla.alpha = 1.0;
+
+      if (!gtk_css_parser_consume_function (parser, 3, 4, parse_hsla_color_channel, &hsla))
+        return FALSE;
+
+      _gdk_rgba_init_from_hsla (rgba, &hsla);
+      return TRUE;
+    }
   else if (gtk_css_token_is (token, GTK_CSS_TOKEN_HASH_ID) ||
            gtk_css_token_is (token, GTK_CSS_TOKEN_HASH_UNRESTRICTED))
     {

gdk/gdktexture.c

@@ -46,6 +46,11 @@
 #include "gdksnapshot.h"
 
 #include <graphene.h>
+#include "loaders/gdkpngprivate.h"
+#include "loaders/gdktiffprivate.h"
+#include "loaders/gdkjpegprivate.h"
+
+G_DEFINE_QUARK (gdk-texture-error-quark, gdk_texture_error)
 
 /* HACK: So we don't need to include any (not-yet-created) GSK or GTK headers */
 void
@@ -115,13 +120,35 @@ G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GdkTexture, gdk_texture, G_TYPE_OBJECT,
 #define GDK_TEXTURE_WARN_NOT_IMPLEMENTED_METHOD(obj,method) \
   g_critical ("Texture of type '%s' does not implement GdkTexture::" # method, G_OBJECT_TYPE_NAME (obj))
 
-static void
-gdk_texture_real_download (GdkTexture         *self,
-                           const GdkRectangle *area,
-                           guchar             *data,
-                           gsize               stride)
+static GdkTexture *
+gdk_texture_real_download_texture (GdkTexture *self)
 {
-  GDK_TEXTURE_WARN_NOT_IMPLEMENTED_METHOD (self, download);
+  GDK_TEXTURE_WARN_NOT_IMPLEMENTED_METHOD (self, download_texture);
+  return NULL;
+}
+
+static void
+gdk_texture_real_download (GdkTexture *texture,
+                           guchar     *data,
+                           gsize      stride)
+{
+  GdkTexture *memory_texture;
+
+  memory_texture = gdk_texture_download_texture (texture);
+  gdk_texture_download (memory_texture, data, stride);
+  g_object_unref (memory_texture);
+}
+
+static void
+gdk_texture_real_download_float (GdkTexture *self,
+                                 float      *data,
+                                 gsize       stride)
+{
+  GdkTexture *memory_texture;
+
+  memory_texture = gdk_texture_download_texture (self);
+  gdk_texture_download_float (memory_texture, data, stride);
+  g_object_unref (memory_texture);
 }
 
 static void
@@ -187,7 +214,9 @@ gdk_texture_class_init (GdkTextureClass *klass)
 {
   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
 
+  klass->download_texture = gdk_texture_real_download_texture;
   klass->download = gdk_texture_real_download;
+  klass->download_float = gdk_texture_real_download_float;
 
   gobject_class->set_property = gdk_texture_set_property;
   gobject_class->get_property = gdk_texture_get_property;
@@ -263,7 +292,7 @@ gdk_texture_new_for_surface (cairo_surface_t *surface)
   
   texture = gdk_memory_texture_new (cairo_image_surface_get_width (surface),
                                     cairo_image_surface_get_height (surface),
-                                    GDK_MEMORY_CAIRO_FORMAT_ARGB32,
+                                    GDK_MEMORY_DEFAULT,
                                     bytes,
                                     cairo_image_surface_get_stride (surface));
 
@@ -359,28 +388,92 @@ GdkTexture *
 gdk_texture_new_from_file (GFile   *file,
                            GError **error)
 {
+  GBytes *bytes;
   GdkTexture *texture;
-  GdkPixbuf *pixbuf;
-  GInputStream *stream;
 
   g_return_val_if_fail (G_IS_FILE (file), NULL);
   g_return_val_if_fail (error == NULL || *error == NULL, NULL);
 
-  stream = G_INPUT_STREAM (g_file_read (file, NULL, error));
-  if (stream == NULL)
+  bytes = g_file_load_bytes (file, NULL, NULL, error);
+  if (bytes == NULL)
     return NULL;
 
-  pixbuf = gdk_pixbuf_new_from_stream (stream, NULL, error);
-  g_object_unref (stream);
-  if (pixbuf == NULL)
-    return NULL;
+  texture = gdk_texture_new_from_bytes (bytes, error);
 
-  texture = gdk_texture_new_for_pixbuf (pixbuf);
-  g_object_unref (pixbuf);
+  g_bytes_unref (bytes);
 
   return texture;
 }
 
+
+/**
+ * gdk_texture_new_from_bytes:
+ * @bytes: a `GBytes` containing the data to load
+ * @error: Return location for an error
+ *
+ * Creates a new texture by loading an image from memory,
+ *
+ * The file format is detected automatically. The supported formats
+ * are PNG and JPEG, though more formats might be available.
+ *
+ * If %NULL is returned, then @error will be set.
+ *
+ * Return value: A newly-created `GdkTexture`
+ *
+ * Since: 4.6
+ */
+GdkTexture *
+gdk_texture_new_from_bytes (GBytes  *bytes,
+                            GError **error)
+{
+  const char *data;
+  gsize size;
+
+  g_return_val_if_fail (bytes != NULL, NULL);
+  g_return_val_if_fail (error == NULL || *error == NULL, NULL);
+
+  data = g_bytes_get_data (bytes, &size);
+
+  if (size > strlen (PNG_SIGNATURE) &&
+      memcmp (data, PNG_SIGNATURE, strlen (PNG_SIGNATURE)) == 0)
+    {
+      return gdk_load_png (bytes, error);
+    }
+  else if ((size > strlen (TIFF_SIGNATURE1) &&
+            memcmp (data, TIFF_SIGNATURE1, strlen (TIFF_SIGNATURE1)) == 0) ||
+           (size > strlen (TIFF_SIGNATURE2) &&
+            memcmp (data, TIFF_SIGNATURE2, strlen (TIFF_SIGNATURE2)) == 0))
+    {
+      return gdk_load_tiff (bytes, error);
+    }
+  else if (size > strlen (JPEG_SIGNATURE) &&
+           memcmp (data, JPEG_SIGNATURE, strlen (JPEG_SIGNATURE)) == 0)
+    {
+      return gdk_load_jpeg (bytes, error);
+    }
+  else
+    {
+      GInputStream *stream;
+      GdkPixbuf *pixbuf;
+
+      stream = g_memory_input_stream_new_from_bytes (bytes);
+      pixbuf = gdk_pixbuf_new_from_stream (stream, NULL, error);
+      g_object_unref (stream);
+
+      if (pixbuf)
+        {
+          GdkTexture *texture;
+
+          texture = gdk_texture_new_for_pixbuf (pixbuf);
+          g_object_unref (pixbuf);
+
+          return texture;
+        }
+    }
+
+  return NULL;
+}
+
 /**
  * gdk_texture_get_width: (attributes org.gtk.Method.get_property=width)
  * @texture: a `GdkTexture`
@@ -435,20 +528,6 @@ gdk_texture_download_surface (GdkTexture *texture)
   return surface;
 }
 
-void
-gdk_texture_download_area (GdkTexture         *texture,
-                           const GdkRectangle *area,
-                           guchar             *data,
-                           gsize               stride)
-{
-  g_assert (area->x >= 0);
-  g_assert (area->y >= 0);
-  g_assert (area->x + area->width <= texture->width);
-  g_assert (area->y + area->height <= texture->height);
-
-  GDK_TEXTURE_GET_CLASS (texture)->download (texture, area, data, stride);
-}
-
 /**
  * gdk_texture_download:
  * @texture: a `GdkTexture`
@@ -485,10 +564,62 @@ gdk_texture_download (GdkTexture *texture,
   g_return_if_fail (data != NULL);
   g_return_if_fail (stride >= gdk_texture_get_width (texture) * 4);
 
-  gdk_texture_download_area (texture,
-                             &(GdkRectangle) { 0, 0, texture->width, texture->height },
-                             data,
-                             stride);
+  GDK_TEXTURE_GET_CLASS (texture)->download (texture, data, stride);
+}
+
+/**
+ * gdk_texture_download_float:
+ * @texture: a `GdkTexture`
+ * @data: (array): pointer to enough memory to be filled with the
+ *   downloaded data of @texture
+ * @stride: rowstride in elements, will usually be equal to
+ *   gdk_texture_get_width() * 4
+ *
+ * Downloads the @texture into local memory in a high dynamic range format.
+ *
+ * This may be an expensive operation, as the actual texture data
+ * may reside on a GPU or on a remote display server and because the data
+ * may need to be upsampled if it was not already available in this
+ * format.
+ *
+ * You may want to use [method@Gdk.Texture.download] instead if you don't
+ * need high dynamic range support.
+ *
+ * The data format of the downloaded data is equivalent to
+ * GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED, so every downloaded
+ * pixel requires 16 bytes of memory.
+ *
+ * Note that the caller is responsible to provide sufficiently
+ * aligned memory to access the resulting data directly as floats.
+ *
+ * Since: 4.6
+ */
+void
+gdk_texture_download_float (GdkTexture *texture,
+                            float      *data,
+                            gsize       stride)
+{
+  g_return_if_fail (GDK_IS_TEXTURE (texture));
+  g_return_if_fail (data != NULL);
+  g_return_if_fail (stride >= gdk_texture_get_width (texture) * 4);
+
+  GDK_TEXTURE_GET_CLASS (texture)->download_float (texture, data, stride);
+}
+
+GdkTexture *
+gdk_texture_download_texture (GdkTexture *texture)
+{
+  g_return_val_if_fail (GDK_IS_TEXTURE (texture), NULL);
+
+  g_object_ref (texture);
+  while (!GDK_IS_MEMORY_TEXTURE (texture))
+    {
+      GdkTexture *downloaded = GDK_TEXTURE_GET_CLASS (texture)->download_texture (texture);
+      g_object_unref (texture);
+      texture = downloaded;
+    }
+
+  return texture;
 }
 
 gboolean
@@ -540,7 +671,8 @@ gdk_texture_get_render_data (GdkTexture  *self,
  * This is a utility function intended for debugging and testing.
  * If you want more control over formats, proper error handling or
  * want to store to a `GFile` or other location, you might want to
- * look into using the gdk-pixbuf library.
+ * use gdk_texture_save_to_png_bytes() or look into the
+ * gdk-pixbuf library.
  *
  * Returns: %TRUE if saving succeeded, %FALSE on failure.
  */
@@ -548,30 +680,109 @@ gboolean
 gdk_texture_save_to_png (GdkTexture *texture,
                          const char *filename)
 {
-  cairo_surface_t *surface;
-  cairo_status_t status;
+  GBytes *bytes;
   gboolean result;
 
   g_return_val_if_fail (GDK_IS_TEXTURE (texture), FALSE);
   g_return_val_if_fail (filename != NULL, FALSE);
 
-  surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
-                                        gdk_texture_get_width (texture),
-                                        gdk_texture_get_height (texture));
-  gdk_texture_download (texture,
-                        cairo_image_surface_get_data (surface),
-                        cairo_image_surface_get_stride (surface));
-  cairo_surface_mark_dirty (surface);
-
-  status = cairo_surface_write_to_png (surface, filename);
-
-  if (status != CAIRO_STATUS_SUCCESS ||
-      cairo_surface_status (surface) != CAIRO_STATUS_SUCCESS)
-    result = FALSE;
-  else
-    result = TRUE;
-
-  cairo_surface_destroy (surface);
+  bytes = gdk_save_png (texture);
+  result = g_file_set_contents (filename,
+                                g_bytes_get_data (bytes, NULL),
+                                g_bytes_get_size (bytes),
+                                NULL);
+  g_bytes_unref (bytes);
 
   return result;
 }
+
+/**
+ * gdk_texture_save_to_png_bytes:
+ * @texture: a `GdkTexture`
+ *
+ * Store the given @texture in memory as a PNG file.
+ * Use gdk_texture_new_from_bytes() to read it back.
+ *
+ * If you want to serialize a texture, this is a convenient and
+ * portable way to do that.
+ *
+ * If you need more control over the generated image, such as
+ * attaching metadata, you should look into an image handling
+ * library such as the gdk-pixbuf library.
+ *
+ * If you are dealing with high dynamic range float data, you
+ * might also want to consider gdk_texture_save_to_tiff_bytes()
+ * instead.
+ *
+ * Returns: a newly allocated `GBytes` containing PNG data
+ *
+ * Since: 4.6
+ */
+GBytes *
+gdk_texture_save_to_png_bytes (GdkTexture *texture)
+{
+  g_return_val_if_fail (GDK_IS_TEXTURE (texture), NULL);
+
+  return gdk_save_png (texture);
+}
+
+/**
+ * gdk_texture_save_to_tiff:
+ * @texture: a `GdkTexture`
+ * @filename: (type filename): the filename to store to
+ *
+ * Store the given @texture to the @filename as a TIFF file.
+ *
+ * GTK will attempt to store data without loss.
+ * Returns: %TRUE if saving succeeded, %FALSE on failure.
+ *
+ * Since: 4.6
+ */
+gboolean
+gdk_texture_save_to_tiff (GdkTexture  *texture,
+                          const char  *filename)
+{
+  GBytes *bytes;
+  gboolean result;
+
+  g_return_val_if_fail (GDK_IS_TEXTURE (texture), FALSE);
+  g_return_val_if_fail (filename != NULL, FALSE);
+
+  bytes = gdk_save_tiff (texture);
+  result = g_file_set_contents (filename,
+                                g_bytes_get_data (bytes, NULL),
+                                g_bytes_get_size (bytes),
+                                NULL);
+  g_bytes_unref (bytes);
+
+  return result;
+}
+
+/**
+ * gdk_texture_save_to_tiff_bytes:
+ * @texture: a `GdkTexture`
+ *
+ * Store the given @texture in memory as a TIFF file.
+ * Use gdk_texture_new_from_bytes() to read it back.
+ *
+ * This function is intended to store a representation of the
+ * texture's data that is as accurate as possible. This is
+ * particularly relevant when working with high dynamic range
+ * images and floating-point texture data.
+ *
+ * If that is not your concern and you are interested in a
+ * smaller size and a more portable format, you might want to
+ * use gdk_texture_save_to_png_bytes().
+ *
+ * Returns: a newly allocated `GBytes` containing TIFF data
+ *
+ * Since: 4.6
+ */
+GBytes *
+gdk_texture_save_to_tiff_bytes (GdkTexture *texture)
+{
+  g_return_val_if_fail (GDK_IS_TEXTURE (texture), NULL);
+
+  return gdk_save_tiff (texture);
+}
+

gdk/gdktexture.h

@@ -38,6 +38,25 @@ G_DEFINE_AUTOPTR_CLEANUP_FUNC(GdkTexture, g_object_unref)
 
 typedef struct _GdkTextureClass        GdkTextureClass;
 
+#define GDK_TEXTURE_ERROR       (gdk_texture_error_quark ())
+
+GDK_AVAILABLE_IN_4_6
+GQuark gdk_texture_error_quark (void);
+
+/**
+ * GdkTextureError:
+ * @GDK_TEXTURE_ERROR_INSUFFICIENT_MEMORY: Not enough memory to handle this image
+ * @GDK_TEXTURE_ERROR_CORRUPT_IMAGE: The image data appears corrupted
+ * @GDK_TEXTURE_ERROR_UNSUPPORTED: The image format is not supported
+ *
+ * Possible errors that can be returned by `GdkTexture` constructors.
+ */
+typedef enum
+{
+  GDK_TEXTURE_ERROR_INSUFFICIENT_MEMORY,
+  GDK_TEXTURE_ERROR_CORRUPT_IMAGE,
+  GDK_TEXTURE_ERROR_UNSUPPORTED,
+} GdkTextureError;
 
 GDK_AVAILABLE_IN_ALL
 GType                   gdk_texture_get_type                   (void) G_GNUC_CONST;
@@ -49,6 +68,9 @@ GdkTexture *            gdk_texture_new_from_resource          (const char
 GDK_AVAILABLE_IN_ALL
 GdkTexture *            gdk_texture_new_from_file              (GFile           *file,
                                                                 GError         **error);
+GDK_AVAILABLE_IN_4_6
+GdkTexture *            gdk_texture_new_from_bytes             (GBytes          *bytes,
+                                                                GError         **error);
 
 GDK_AVAILABLE_IN_ALL
 int                     gdk_texture_get_width                  (GdkTexture      *texture) G_GNUC_PURE;
@@ -59,9 +81,20 @@ GDK_AVAILABLE_IN_ALL
 void                    gdk_texture_download                   (GdkTexture      *texture,
                                                                 guchar          *data,
                                                                 gsize            stride);
+GDK_AVAILABLE_IN_4_6
+void                    gdk_texture_download_float             (GdkTexture      *texture,
+                                                                float           *data,
+                                                                gsize            stride);
 GDK_AVAILABLE_IN_ALL
 gboolean                gdk_texture_save_to_png                (GdkTexture      *texture,
                                                                 const char      *filename);
+GDK_AVAILABLE_IN_4_6
+GBytes *                gdk_texture_save_to_png_bytes          (GdkTexture      *texture);
+GDK_AVAILABLE_IN_4_6
+gboolean                gdk_texture_save_to_tiff               (GdkTexture      *texture,
+                                                                const char      *filename);
+GDK_AVAILABLE_IN_4_6
+GBytes *                gdk_texture_save_to_tiff_bytes         (GdkTexture      *texture);
 
 G_END_DECLS
 

gdk/gdktextureprivate.h

@@ -24,10 +24,15 @@ struct _GdkTexture
 struct _GdkTextureClass {
   GObjectClass parent_class;
 
+  /* mandatory: Download into a GdkMemoryTexture */
+  GdkTexture *          (* download_texture)            (GdkTexture             *texture);
+  /* optional */
   void                  (* download)                    (GdkTexture             *texture,
-                                                         const GdkRectangle     *area,
                                                          guchar                 *data,
                                                          gsize                   stride);
+  void                  (* download_float)              (GdkTexture             *texture,
+                                                         float                  *data,
+                                                         gsize                   stride);
 };
 
 gpointer                gdk_texture_new                 (const GdkTextureClass  *klass,
@@ -35,10 +40,8 @@ gpointer                gdk_texture_new                 (const GdkTextureClass
                                                          int                     height);
 GdkTexture *            gdk_texture_new_for_surface     (cairo_surface_t        *surface);
 cairo_surface_t *       gdk_texture_download_surface    (GdkTexture             *texture);
-void                    gdk_texture_download_area       (GdkTexture             *texture,
-                                                         const GdkRectangle     *area,
-                                                         guchar                 *data,
-                                                         gsize                   stride);
+/* NB: GdkMemoryTexture */
+GdkTexture *            gdk_texture_download_texture    (GdkTexture             *texture);
 
 gboolean                gdk_texture_set_render_data     (GdkTexture             *self,
                                                          gpointer                key,

gdk/loaders/gdkjpeg.c

@@ -0,0 +1,146 @@
+/* GDK - The GIMP Drawing Kit
+ * Copyright (C) 2021 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include "gdkjpegprivate.h"
+
+#include "gdktexture.h"
+#include "gdkmemorytextureprivate.h"
+#include <jpeglib.h>
+#include <jerror.h>
+#include <setjmp.h>
+
+/* {{{ Error handling */
+
+/* No sigsetjmp on Windows */
+#ifndef HAVE_SIGSETJMP
+#define sigjmp_buf jmp_buf
+#define sigsetjmp(jb, x) setjmp(jb)
+#define siglongjmp longjmp
+#endif
+
+struct error_handler_data {
+        struct jpeg_error_mgr pub;
+        sigjmp_buf setjmp_buffer;
+        GError **error;
+};
+
+static void
+fatal_error_handler (j_common_ptr cinfo)
+{
+  struct error_handler_data *errmgr;
+  char buffer[JMSG_LENGTH_MAX];
+
+  errmgr = (struct error_handler_data *) cinfo->err;
+
+  cinfo->err->format_message (cinfo, buffer);
+
+  if (errmgr->error && *errmgr->error == NULL)
+    g_set_error (errmgr->error,
+                 GDK_TEXTURE_ERROR,
+                 cinfo->err->msg_code == JERR_OUT_OF_MEMORY
+                   ? GDK_TEXTURE_ERROR_INSUFFICIENT_MEMORY
+                   : GDK_TEXTURE_ERROR_CORRUPT_IMAGE,
+                 "Error interpreting JPEG image file (%s)", buffer);
+
+  siglongjmp (errmgr->setjmp_buffer, 1);
+
+  g_assert_not_reached ();
+}
+
+static void
+output_message_handler (j_common_ptr cinfo)
+{
+  /* do nothing */
+}
+
+/* }}} */
+ /* {{{ Public API */
+
+GdkTexture *
+gdk_load_jpeg (GBytes  *input_bytes,
+               GError **error)
+{
+  struct jpeg_decompress_struct info;
+  struct error_handler_data jerr;
+  struct jpeg_error_mgr err;
+  int width, height;
+  int size;
+  unsigned char *data;
+  unsigned char *row[1];
+  GBytes *bytes;
+  GdkTexture *texture;
+
+  info.err = jpeg_std_error (&jerr.pub);
+  jerr.pub.error_exit = fatal_error_handler;
+  jerr.pub.output_message = output_message_handler;
+  jerr.error = error;
+
+  if (sigsetjmp (jerr.setjmp_buffer, 1))
+    {
+      jpeg_destroy_decompress (&info);
+      return NULL;
+    }
+
+  info.err = jpeg_std_error (&err);
+  jpeg_create_decompress (&info);
+
+  jpeg_mem_src (&info,
+                g_bytes_get_data (input_bytes, NULL),
+                g_bytes_get_size (input_bytes));
+
+  jpeg_read_header (&info, TRUE);
+  jpeg_start_decompress (&info);
+
+  width = info.output_width;
+  height = info.output_height;
+
+  size = width * height * 3;
+  data = g_try_malloc_n (width * 3, height);
+  if (!data)
+    {
+      g_set_error_literal (error,
+                           GDK_TEXTURE_ERROR, GDK_TEXTURE_ERROR_INSUFFICIENT_MEMORY,
+                           "Not enough memory to load jpeg");
+      jpeg_destroy_decompress (&info);
+      return NULL;
+    }
+
+  while (info.output_scanline < info.output_height)
+    {
+       row[0] = (unsigned char *)(&data[3 *info.output_width * info.output_scanline]);
+       jpeg_read_scanlines (&info, row, 1);
+    }
+
+  jpeg_finish_decompress (&info);
+  jpeg_destroy_decompress (&info);
+
+  bytes = g_bytes_new_take (data, size);
+
+  texture = gdk_memory_texture_new (width, height,
+                                    GDK_MEMORY_R8G8B8,
+                                    bytes, width * 3);
+
+  g_bytes_unref (bytes);
+
+  return texture;
+}
+
+/* }}} */
+
+/* vim:set foldmethod=marker expandtab: */

gdk/loaders/gdkjpegprivate.h

@@ -0,0 +1,29 @@
+/* GDK - The GIMP Drawing Kit
+ * Copyright (C) 2021 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GDK_JPEG_PRIVATE_H__
+#define __GDK_JPEG_PRIVATE_H__
+
+#include "gdkmemorytexture.h"
+#include <gio/gio.h>
+
+#define JPEG_SIGNATURE "\xff\xd8"
+
+GdkTexture *gdk_load_jpeg         (GBytes           *bytes,
+                                   GError          **error);
+
+#endif

gdk/loaders/gdkpng.c

@@ -0,0 +1,242 @@
+/* GDK - The GIMP Drawing Kit
+ * Copyright (C) 2021 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include "gdkpngprivate.h"
+
+#include "gdktexture.h"
+#include "gdktextureprivate.h"
+#include "gdkmemorytextureprivate.h"
+#include "gsk/ngl/fp16private.h"
+#include <png.h>
+#include <stdio.h>
+
+/* The main difference between the png load/save code here and
+ * gdk-pixbuf is that we can support loading 16-bit data in the
+ * future, and we can extract gamma and colorspace information
+ * to produce linear, color-corrected data.
+ */
+
+/* {{{ Format conversion */
+
+static void
+flip_02 (guchar *data,
+         int     width,
+         int     height,
+         int     stride)
+{
+  gsize x, y;
+
+  for (y = 0; y < height; y++)
+    {
+      for (x = 0; x < width; x++)
+        {
+          guchar tmp;
+          tmp = data[x * 4];
+          data[x * 4] = data[x * 4 + 2];
+          data[x * 4 + 2] = tmp;
+        }
+      data += stride;
+    }
+}
+
+static void
+convert_float_to_16bit_inplace (float   *src,
+                                int      width,
+                                int      height)
+{
+  gsize x, y;
+  guint16 *dest = (guint16 *)src;
+
+  for (y = 0; y < height; y++)
+    {
+      for (x = 0; x < width; x++)
+        {
+          dest[4 * x    ] = (guint16) CLAMP(65536.f * src[x * 4    ], 0.f, 65535.f);
+          dest[4 * x + 1] = (guint16) CLAMP(65536.f * src[x * 4 + 1], 0.f, 65535.f);
+          dest[4 * x + 2] = (guint16) CLAMP(65536.f * src[x * 4 + 2], 0.f, 65535.f);
+          dest[4 * x + 3] = (guint16) CLAMP(65536.f * src[x * 4 + 3], 0.f, 65535.f);
+        }
+      dest += width * 4;
+      src += width * 4;
+    }
+} 
+
+/* }}} */
+/* {{{ Public API */
+
+GdkTexture *
+gdk_load_png (GBytes  *bytes,
+              GError **error)
+{
+  png_image image = { NULL, PNG_IMAGE_VERSION, 0, };
+  gsize size;
+  gsize stride;
+  guchar *buffer;
+  GdkTexture *texture;
+  GBytes *out_bytes;
+
+  png_image_begin_read_from_memory (&image,
+                                    g_bytes_get_data (bytes, NULL),
+                                    g_bytes_get_size (bytes));
+
+  if (PNG_IMAGE_FAILED (image))
+    {
+      g_set_error (error,
+                   GDK_TEXTURE_ERROR, GDK_TEXTURE_ERROR_UNSUPPORTED,
+                   "Failed to parse png image (%s)", image.message);
+      png_image_free (&image);
+      return NULL;
+    }
+
+  image.format = PNG_FORMAT_RGBA;
+
+  stride = PNG_IMAGE_ROW_STRIDE (image);
+  size = PNG_IMAGE_BUFFER_SIZE (image, stride);
+  buffer = g_try_malloc (size);
+  if (!buffer)
+    {
+      g_set_error_literal (error,
+                           GDK_TEXTURE_ERROR, GDK_TEXTURE_ERROR_INSUFFICIENT_MEMORY,
+                           "Not enough memory to load png");
+      png_image_free (&image);
+      return NULL;
+    }
+
+  png_image_finish_read (&image, NULL, buffer, stride, NULL);
+
+  if (PNG_IMAGE_FAILED (image))
+    {
+      g_set_error (error,
+                   GDK_TEXTURE_ERROR, GDK_TEXTURE_ERROR_UNSUPPORTED,
+                   "Failed to parse png image (%s)", image.message);
+      png_image_free (&image);
+      return NULL;
+    }
+
+  if (image.format & PNG_FORMAT_FLAG_LINEAR)
+    stride *= 2;
+
+  out_bytes = g_bytes_new_take (buffer, size);
+
+  texture = gdk_memory_texture_new (image.width, image.height,
+                                    GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
+                                    out_bytes, stride);
+
+  g_bytes_unref (out_bytes);
+
+  png_image_free (&image);
+
+  return texture;
+}
+
+GBytes *
+gdk_save_png (GdkTexture *texture)
+{
+  png_image image = { NULL, PNG_IMAGE_VERSION, 0, };
+  int stride;
+  const guchar *data;
+  guchar *new_data = NULL;
+  png_alloc_size_t size;
+  gpointer buffer;
+  GdkTexture *memory_texture;
+  GdkMemoryFormat format;
+  gboolean result G_GNUC_UNUSED;
+
+  image.width = gdk_texture_get_width (texture);
+  image.height = gdk_texture_get_height (texture);
+
+  memory_texture = gdk_texture_download_texture (texture);
+  format = gdk_memory_texture_get_format (GDK_MEMORY_TEXTURE (memory_texture));
+
+  switch (format)
+    {
+    case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
+      data = gdk_memory_texture_get_data (GDK_MEMORY_TEXTURE (memory_texture));
+      stride = gdk_memory_texture_get_stride (GDK_MEMORY_TEXTURE (memory_texture));
+      image.format = PNG_FORMAT_RGBA;
+      break;
+
+    case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
+    case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
+    case GDK_MEMORY_B8G8R8A8:
+    case GDK_MEMORY_A8R8G8B8:
+    case GDK_MEMORY_R8G8B8A8:
+    case GDK_MEMORY_A8B8G8R8:
+    case GDK_MEMORY_R8G8B8:
+    case GDK_MEMORY_B8G8R8:
+      stride = image.width * 4;
+      new_data = g_malloc (stride * image.height);
+      gdk_texture_download (memory_texture, new_data, stride);
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
+      flip_02 (new_data, image.width, image.height, stride);
+#endif
+      data = new_data;
+      image.format = PNG_FORMAT_RGBA;
+      break;
+
+    case GDK_MEMORY_R16G16B16:
+      data = gdk_memory_texture_get_data (GDK_MEMORY_TEXTURE (memory_texture));
+      stride = gdk_memory_texture_get_stride (GDK_MEMORY_TEXTURE (memory_texture));
+      image.format = PNG_FORMAT_LINEAR_RGB;
+      break;
+
+    case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
+      data = gdk_memory_texture_get_data (GDK_MEMORY_TEXTURE (memory_texture));
+      stride = gdk_memory_texture_get_stride (GDK_MEMORY_TEXTURE (memory_texture));
+      image.format = PNG_FORMAT_LINEAR_RGB_ALPHA;
+      break;
+
+    case GDK_MEMORY_R16G16B16_FLOAT:
+    case GDK_MEMORY_R32G32B32_FLOAT:
+    case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
+    case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
+      /* This isn't very efficient */
+      new_data = g_malloc (image.width * image.height * 16);
+      gdk_texture_download_float (memory_texture, (float *)new_data, image.width * 16);
+      convert_float_to_16bit_inplace ((float *)new_data, image.width, image.height);
+      data = new_data;
+      stride = image.width * 8;
+      image.format = PNG_FORMAT_LINEAR_RGB_ALPHA;
+      break;
+
+    case GDK_MEMORY_N_FORMATS:
+    default:
+      g_assert_not_reached ();
+    }
+
+  if (image.format & PNG_FORMAT_FLAG_LINEAR)
+    stride /= 2;
+
+  png_image_write_get_memory_size (image, size, FALSE, data, stride, NULL);
+
+  buffer = g_malloc (size);
+  result = png_image_write_to_memory (&image, buffer, &size, FALSE, data, stride, NULL);
+
+  g_assert (result);
+
+  g_object_unref (memory_texture);
+  png_image_free (&image);
+  g_free (new_data);
+
+  return g_bytes_new_take (buffer, size);
+}
+
+/* }}} */
+
+/* vim:set foldmethod=marker expandtab: */

gdk/loaders/gdkpngprivate.h

@@ -0,0 +1,31 @@
+/* GDK - The GIMP Drawing Kit
+ * Copyright (C) 2021 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GDK_PNG_PRIVATE_H__
+#define __GDK_PNG_PRIVATE_H__
+
+#include "gdktexture.h"
+#include <gio/gio.h>
+
+#define PNG_SIGNATURE "\x89PNG"
+
+GdkTexture *gdk_load_png        (GBytes         *bytes,
+                                 GError        **error);
+
+GBytes     *gdk_save_png        (GdkTexture     *texture);
+
+#endif

gdk/loaders/gdktiff.c

@@ -0,0 +1,502 @@
+/* GDK - The GIMP Drawing Kit
+ * Copyright (C) 2021 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include "gdktiffprivate.h"
+
+#include "gdktexture.h"
+#include "gdktextureprivate.h"
+#include "gdkmemorytextureprivate.h"
+#include <tiffio.h>
+
+/* Our main interest in tiff as an image format is that it is
+ * flexible enough to save all our texture formats without
+ * lossy conversions.
+ *
+ * The loader isn't meant to be a very versatile. It just aims
+ * to load the subset that we're saving ourselves. For anything
+ * else, we fall back to TIFFRGBAImage, which is the same api
+ * that gdk-pixbuf uses.
+ */
+
+/* {{{ IO handling */
+
+typedef struct
+{
+  GBytes **out_bytes;
+  gchar *data;
+  gsize size;
+  gsize position;
+} TiffIO;
+
+static void
+tiff_io_warning (const char *module,
+                 const char *fmt,
+                 va_list     ap) G_GNUC_PRINTF(2, 0);
+static void
+tiff_io_warning (const char *module,
+                 const char *fmt,
+                 va_list     ap)
+{
+  g_logv (G_LOG_DOMAIN, G_LOG_LEVEL_MESSAGE, fmt, ap);
+}
+
+static void
+tiff_io_error (const char *module,
+               const char *fmt,
+               va_list     ap) G_GNUC_PRINTF(2, 0);
+static void
+tiff_io_error (const char *module,
+               const char *fmt,
+               va_list     ap)
+{
+  g_logv (G_LOG_DOMAIN, G_LOG_LEVEL_MESSAGE, fmt, ap);
+}
+
+static tsize_t
+tiff_io_read (thandle_t handle,
+              tdata_t   buffer,
+              tsize_t   size)
+{
+  TiffIO *io = (TiffIO *) handle;
+  gsize read;
+
+  read = MIN (size, io->size - io->position);
+
+  memcpy (buffer, io->data + io->position, read);
+  io->position += read;
+
+  return (tsize_t) read;
+}
+
+static tsize_t
+tiff_io_no_write (thandle_t handle,
+                  tdata_t   buffer,
+                  tsize_t   size)
+{
+  errno = EINVAL;
+  return (tsize_t) -1;
+}
+
+static tsize_t
+tiff_io_write (thandle_t handle,
+               tdata_t   buffer,
+               tsize_t   size)
+{
+  TiffIO *io = (TiffIO *) handle;
+
+  if (io->size - io->position < size)
+    {
+      io->size = io->position + size;
+      io->data = g_realloc (io->data, io->size);
+    }
+
+  memcpy (io->data + io->position, buffer, size);
+  io->position += size;
+
+  return (tsize_t) size;
+}
+
+static toff_t
+tiff_io_seek (thandle_t handle,
+              toff_t    offset,
+              int       whence)
+{
+  TiffIO *io = (TiffIO *) handle;
+
+  switch (whence)
+    {
+    default:
+      errno = EINVAL;
+      return -1;
+    case SEEK_SET:
+      break;
+    case SEEK_CUR:
+      offset += io->position;
+      break;
+    case SEEK_END:
+      offset += io->size;
+      break;
+    }
+  if (offset < 0)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+  if (offset > io->size)
+    {
+      /* Linux apparently can do that */
+      errno = EINVAL;
+      return -1;
+    }
+
+  io->position = offset;
+
+  return offset;
+}
+
+static int
+tiff_io_close (thandle_t handle)
+{
+  TiffIO *io = (TiffIO *) handle;
+
+  if (io->out_bytes)
+    *io->out_bytes = g_bytes_new_take (io->data, io->size);
+
+  g_free (io);
+
+  return 0;
+}
+
+static toff_t
+tiff_io_get_file_size (thandle_t handle)
+{
+  TiffIO *io = (TiffIO *) handle;
+
+  return io->size;
+}
+
+static TIFF *
+tiff_open_read (GBytes *bytes)
+{
+  TiffIO *io;
+
+  TIFFSetWarningHandler ((TIFFErrorHandler) tiff_io_warning);
+  TIFFSetErrorHandler ((TIFFErrorHandler) tiff_io_error);
+
+  io = g_new0 (TiffIO, 1);
+
+  io->data = (char *) g_bytes_get_data (bytes, &io->size);
+
+  return TIFFClientOpen ("GTK-read", "r",
+                         (thandle_t) io,
+                         tiff_io_read,
+                         tiff_io_no_write,
+                         tiff_io_seek,
+                         tiff_io_close,
+                         tiff_io_get_file_size,
+                         NULL, NULL);
+}
+
+static TIFF *
+tiff_open_write (GBytes **result)
+{
+  TiffIO *io;
+
+  TIFFSetWarningHandler ((TIFFErrorHandler) tiff_io_warning);
+  TIFFSetErrorHandler ((TIFFErrorHandler) tiff_io_error);
+
+  io = g_new0 (TiffIO, 1);
+
+  io->out_bytes = result;
+
+  return TIFFClientOpen ("GTK-write", "w",
+                         (thandle_t) io,
+                         tiff_io_read,
+                         tiff_io_write,
+                         tiff_io_seek,
+                         tiff_io_close,
+                         tiff_io_get_file_size,
+                         NULL, NULL);
+}
+
+/* }}} */
+/* {{{ Format conversion */
+
+static void
+flip_02 (guchar *data,
+         int     width,
+         int     height,
+         int     stride)
+{ 
+  gsize x, y;
+  
+  for (y = 0; y < height; y++)
+    {
+      for (x = 0; x < width; x++)
+        {
+          guchar tmp;
+          tmp = data[x * 4];
+          data[x * 4] = data[x * 4 + 2];
+          data[x * 4 + 2] = tmp;
+        }
+      data += stride;
+    }
+}
+
+/* }}} */
+/* {{{ Public API */
+
+static struct {
+  GdkMemoryFormat format;
+  guint16 bits_per_sample;
+  guint16 samples_per_pixel;
+  guint16 sample_format;
+} format_data[] = {
+  { GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,            8, 4, SAMPLEFORMAT_UINT   },
+  { GDK_MEMORY_R8G8B8,                            8, 3, SAMPLEFORMAT_UINT   },
+  { GDK_MEMORY_R16G16B16,                        16, 3, SAMPLEFORMAT_UINT   },
+  { GDK_MEMORY_R16G16B16A16_PREMULTIPLIED,       16, 4, SAMPLEFORMAT_UINT   },
+  { GDK_MEMORY_R16G16B16_FLOAT,                  16, 3, SAMPLEFORMAT_IEEEFP },
+  { GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED, 16, 4, SAMPLEFORMAT_IEEEFP },
+  { GDK_MEMORY_R32G32B32_FLOAT,                  32, 3, SAMPLEFORMAT_IEEEFP },
+  { GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED, 32, 4, SAMPLEFORMAT_IEEEFP },
+};
+
+GBytes *
+gdk_save_tiff (GdkTexture *texture)
+{
+  TIFF *tif;
+  int width, height, stride;
+  guint16 bits_per_sample = 0;
+  guint16 samples_per_pixel = 0;
+  guint16 sample_format = 0;
+  const guchar *line;
+  const guchar *data;
+  guchar *new_data = NULL;
+  GBytes *result = NULL;
+  GdkTexture *memory_texture;
+  GdkMemoryFormat format;
+
+  tif = tiff_open_write (&result);
+
+  width = gdk_texture_get_width (texture);
+  height = gdk_texture_get_height (texture);
+
+  memory_texture = gdk_texture_download_texture (texture);
+  format = gdk_memory_texture_get_format (GDK_MEMORY_TEXTURE (memory_texture));
+
+  for (int i = 0; i < G_N_ELEMENTS (format_data); i++)
+    {
+      if (format == format_data[i].format)
+        {
+          data = gdk_memory_texture_get_data (GDK_MEMORY_TEXTURE (memory_texture));
+          stride = gdk_memory_texture_get_stride (GDK_MEMORY_TEXTURE (memory_texture));
+          bits_per_sample = format_data[i].bits_per_sample;
+          samples_per_pixel = format_data[i].samples_per_pixel;
+          sample_format = format_data[i].sample_format;
+          break;
+        }
+    }
+
+  if (bits_per_sample == 0)
+    {
+      /* An 8-bit format we don't have in the table, handle
+       * it by converting to R8G8B8A8_PREMULTIPLIED
+       */
+      stride = width * 4;
+      new_data = g_malloc (stride * height);
+      gdk_texture_download (memory_texture, new_data, stride);
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
+      flip_02 (new_data, width, height, stride);
+#endif
+      data = new_data;
+      bits_per_sample = 8;
+      samples_per_pixel = 4;
+      sample_format = SAMPLEFORMAT_UINT;
+    }
+
+  TIFFSetField (tif, TIFFTAG_SOFTWARE, "GTK");
+  TIFFSetField (tif, TIFFTAG_IMAGEWIDTH, width);
+  TIFFSetField (tif, TIFFTAG_IMAGELENGTH, height);
+  TIFFSetField (tif, TIFFTAG_BITSPERSAMPLE, bits_per_sample);
+  TIFFSetField (tif, TIFFTAG_SAMPLESPERPIXEL, samples_per_pixel);
+  TIFFSetField (tif, TIFFTAG_SAMPLEFORMAT, sample_format);
+  TIFFSetField (tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
+  TIFFSetField (tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
+  // TODO: save gamma / colorspace
+
+  if (samples_per_pixel > 3)
+    {
+      guint16 extra_samples[] = { EXTRASAMPLE_ASSOCALPHA };
+      TIFFSetField (tif, TIFFTAG_EXTRASAMPLES, 1, extra_samples);
+    }
+
+  TIFFSetField (tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
+  TIFFSetField (tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
+
+  line = (const guchar *)data;
+  for (int y = 0; y < height; y++)
+    {
+      if (TIFFWriteScanline (tif, (void *)line, y, 0) == -1)
+        {
+          TIFFClose (tif);
+          g_free (new_data);
+          g_object_unref (memory_texture);
+          return NULL;
+        }
+
+      line += stride;
+    }
+
+  TIFFFlushData (tif);
+  TIFFClose (tif);
+
+  g_assert (result);
+
+  g_free (new_data);
+  g_object_unref (memory_texture);
+
+  return result;
+}
+
+static GdkTexture *
+load_fallback (TIFF    *tif,
+               GError **error)
+{
+  int width, height;
+  guchar *data;
+  GBytes *bytes;
+  GdkTexture *texture;
+
+  TIFFGetField (tif, TIFFTAG_IMAGEWIDTH, &width);
+  TIFFGetField (tif, TIFFTAG_IMAGELENGTH, &height);
+
+  data = g_malloc (width * height * 4);
+
+  if (!TIFFReadRGBAImageOriented (tif, width, height, (uint32 *)data, ORIENTATION_TOPLEFT, 1))
+    {
+      g_set_error_literal (error,
+                           G_IO_ERROR, G_IO_ERROR_FAILED,
+                           "Failed to load RGB data from TIFF file");
+      g_free (data);
+      return NULL;
+    }
+
+  bytes = g_bytes_new_take (data, width * height * 4);
+
+  texture = gdk_memory_texture_new (width, height,
+                                    GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
+                                    bytes,
+                                    width * 4);
+
+  g_bytes_unref (bytes);
+
+  return texture;
+}
+
+GdkTexture *
+gdk_load_tiff (GBytes  *input_bytes,
+               GError **error)
+{
+  TIFF *tif;
+  guint16 samples_per_pixel;
+  guint16 bits_per_sample;
+  guint16 photometric;
+  guint16 planarconfig;
+  guint16 sample_format;
+  guint16 orientation;
+  guint32 width, height;
+  GdkMemoryFormat format;
+  guchar *data, *line;
+  gsize stride;
+  int bpp;
+  GBytes *bytes;
+  GdkTexture *texture;
+
+  tif = tiff_open_read (input_bytes);
+
+  TIFFSetDirectory (tif, 0);
+
+  TIFFGetFieldDefaulted (tif, TIFFTAG_SAMPLESPERPIXEL, &samples_per_pixel);
+  TIFFGetFieldDefaulted (tif, TIFFTAG_BITSPERSAMPLE, &bits_per_sample);
+  TIFFGetFieldDefaulted (tif, TIFFTAG_SAMPLEFORMAT, &sample_format);
+  TIFFGetFieldDefaulted (tif, TIFFTAG_PHOTOMETRIC, &photometric);
+  TIFFGetFieldDefaulted (tif, TIFFTAG_PLANARCONFIG, &planarconfig);
+  TIFFGetFieldDefaulted (tif, TIFFTAG_ORIENTATION, &orientation);
+  TIFFGetFieldDefaulted (tif, TIFFTAG_IMAGEWIDTH, &width);
+  TIFFGetFieldDefaulted (tif, TIFFTAG_IMAGELENGTH, &height);
+
+  if (samples_per_pixel == 4)
+    {
+      guint16 extra;
+      guint16 *extra_types;
+
+      if (!TIFFGetField (tif, TIFFTAG_EXTRASAMPLES, &extra, &extra_types))
+        extra = 0;
+
+      if (extra == 0 || extra_types[0] != EXTRASAMPLE_ASSOCALPHA)
+        {
+          texture = load_fallback (tif, error);
+          TIFFClose (tif);
+          return texture;
+        }
+    }
+
+  format = 0;
+
+  for (int i = 0; i < G_N_ELEMENTS (format_data); i++)
+    {
+      if (format_data[i].sample_format == sample_format &&
+          format_data[i].bits_per_sample == bits_per_sample &&
+          format_data[i].samples_per_pixel == samples_per_pixel)
+        {
+          format = format_data[i].format;
+          break;
+        }
+    }
+
+  if (format == 0 ||
+      photometric != PHOTOMETRIC_RGB ||
+      planarconfig != PLANARCONFIG_CONTIG ||
+      TIFFIsTiled (tif) ||
+      orientation != ORIENTATION_TOPLEFT)
+    {
+      texture = load_fallback (tif, error);
+      TIFFClose (tif);
+      return texture;
+    }
+
+  stride = width * gdk_memory_format_bytes_per_pixel (format);
+
+  g_assert (TIFFScanlineSize (tif) == stride);
+
+  data = g_new (guchar, height * stride);
+
+  line = data;
+  for (int y = 0; y < height; y++)
+    {
+      if (TIFFReadScanline (tif, line, y, 0) == -1)
+        {
+          g_set_error (error,
+                       G_IO_ERROR, G_IO_ERROR_FAILED,
+                       "Reading data failed at row %d", y);
+          TIFFClose (tif);
+          g_free (data);
+          return NULL;
+        }
+
+      line += stride;
+    }
+
+  bpp = gdk_memory_format_bytes_per_pixel (format);
+  bytes = g_bytes_new_take (data, width * height * bpp);
+
+  texture = gdk_memory_texture_new (width, height,
+                                    format,
+                                    bytes, width * bpp);
+  g_bytes_unref (bytes);
+
+  TIFFClose (tif);
+
+  return texture;
+}
+
+/* }}} */
+
+/* vim:set foldmethod=marker expandtab: */

gdk/loaders/gdktiffprivate.h

@@ -0,0 +1,32 @@
+/* GDK - The GIMP Drawing Kit
+ * Copyright (C) 2021 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GDK_TIFF_PRIVATE_H__
+#define __GDK_TIFF_PRIVATE_H__
+
+#include "gdktexture.h"
+#include <gio/gio.h>
+
+#define TIFF_SIGNATURE1 "MM\x00\x2a"
+#define TIFF_SIGNATURE2 "II\x2a\x00"
+
+GdkTexture *gdk_load_tiff         (GBytes           *bytes,
+                                   GError          **error);
+
+GBytes *    gdk_save_tiff         (GdkTexture       *texture);
+
+#endif

gdk/meson.build

@@ -27,6 +27,7 @@ gdk_public_sources = files([
   'gdkglcontext.c',
   'gdkglobals.c',
   'gdkgltexture.c',
+  'gdkhsla.c',
   'gdkkeys.c',
   'gdkkeyuni.c',
   'gdkmemorytexture.c',
@@ -50,6 +51,9 @@ gdk_public_sources = files([
   'gdktoplevelsize.c',
   'gdktoplevel.c',
   'gdkdragsurface.c',
+  'loaders/gdkpng.c',
+  'loaders/gdktiff.c',
+  'loaders/gdkjpeg.c',
 ])
 
 gdk_public_headers = files([
@@ -107,6 +111,7 @@ gdk_sources = gdk_public_sources
 gdk_private_h_sources = files([
   'gdkeventsprivate.h',
   'gdkdevicetoolprivate.h',
+  'gdkhslaprivate.h',
   'gdkmonitorprivate.h',
   'gdkseatdefaultprivate.h',
   'gdktoplevelsizeprivate.h',
@@ -254,8 +259,8 @@ endif
 
 libgdk = static_library('gdk',
   sources: [gdk_sources, gdk_backends_gen_headers, gdkconfig],
-  dependencies: gdk_deps + [libgtk_css_dep],
-  link_with: [libgtk_css, ],
+  dependencies: gdk_deps + [libgtk_css_dep, png_dep, tiff_dep, jpeg_dep],
+  link_with: [libgtk_css],
   include_directories: [confinc, gdkx11_inc, wlinc],
   c_args: libgdk_c_args + common_cflags,
   link_whole: gdk_backends,

gsk/gskrendernodeimpl.c

@@ -5674,7 +5674,7 @@ gsk_render_node_content_serializer_finish (GObject      *source,
   GOutputStream *stream = G_OUTPUT_STREAM (source);
   GError *error = NULL;
 
-  if (!g_output_stream_write_bytes_finish (stream, result, &error))
+  if (g_output_stream_splice_finish (stream, result, &error) < 0)
     gdk_content_serializer_return_error (serializer, error);
   else
     gdk_content_serializer_return_success (serializer);
@@ -5683,6 +5683,7 @@ gsk_render_node_content_serializer_finish (GObject      *source,
 static void
 gsk_render_node_content_serializer (GdkContentSerializer *serializer)
 {
+  GInputStream *input;
   const GValue *value;
   GskRenderNode *node;
   GBytes *bytes;
@@ -5690,13 +5691,16 @@ gsk_render_node_content_serializer (GdkContentSerializer *serializer)
   value = gdk_content_serializer_get_value (serializer);
   node = gsk_value_get_render_node (value);
   bytes = gsk_render_node_serialize (node);
+  input = g_memory_input_stream_new_from_bytes (bytes);
 
-  g_output_stream_write_bytes_async (gdk_content_serializer_get_output_stream (serializer),
-                                     bytes,
-                                     gdk_content_serializer_get_priority (serializer),
-                                     gdk_content_serializer_get_cancellable (serializer),
-                                     gsk_render_node_content_serializer_finish,
-                                     serializer);
+  g_output_stream_splice_async (gdk_content_serializer_get_output_stream (serializer),
+                                input,
+                                G_OUTPUT_STREAM_SPLICE_CLOSE_SOURCE,
+                                gdk_content_serializer_get_priority (serializer),
+                                gdk_content_serializer_get_cancellable (serializer),
+                                gsk_render_node_content_serializer_finish,
+                                serializer);
+  g_object_unref (input);
   g_bytes_unref (bytes);
 }
 

gsk/gskrendernodeparser.c

@@ -94,15 +94,8 @@ parse_texture (GtkCssParser *parser,
       bytes = gtk_css_data_url_parse (url, NULL, &error);
       if (bytes)
         {
-          stream = g_memory_input_stream_new_from_bytes (bytes);
+          texture = gdk_texture_new_from_bytes (bytes, &error);
           g_bytes_unref (bytes);
-          pixbuf = gdk_pixbuf_new_from_stream (stream, NULL, &error);
-          g_object_unref (stream);
-          if (pixbuf != NULL)
-            {
-              texture = gdk_texture_new_for_pixbuf (pixbuf);
-              g_object_unref (pixbuf);
-            }
         }
     }
   else
@@ -2690,26 +2683,23 @@ render_node_print (Printer       *p,
     case GSK_TEXTURE_NODE:
       {
         GdkTexture *texture = gsk_texture_node_get_texture (node);
-        cairo_surface_t *surface;
-        GByteArray *array;
+        GBytes *bytes;
 
         start_node (p, "texture");
         append_rect_param (p, "bounds", &node->bounds);
 
-        surface = gdk_texture_download_surface (texture);
-        array = g_byte_array_new ();
-        cairo_surface_write_to_png_stream (surface, cairo_write_array, array);
+        bytes = gdk_texture_save_to_png_bytes (texture);
 
         _indent (p);
         g_string_append (p->str, "texture: url(\"data:image/png;base64,");
-        b64 = base64_encode_with_linebreaks (array->data, array->len);
+        b64 = base64_encode_with_linebreaks (g_bytes_get_data (bytes, NULL),
+                                             g_bytes_get_size (bytes));
         append_escaping_newlines (p->str, b64);
         g_free (b64);
         g_string_append (p->str, "\");\n");
         end_node (p);
 
-        g_byte_array_free (array, TRUE);
-        cairo_surface_destroy (surface);
+        g_bytes_unref (bytes);
       }
       break;
 

gsk/ngl/fp16.c

@@ -37,7 +37,7 @@ as_float (const guint x)
 // IEEE-754 16-bit floating-point format (without infinity): 1-5-10
 
 static inline float
-half_to_float (const guint16 x)
+half_to_float_one (const guint16 x)
 {
   const guint e = (x&0x7C00)>>10; // exponent
   const guint m = (x&0x03FF)<<13; // mantissa
@@ -46,7 +46,7 @@ half_to_float (const guint16 x)
 }
 
 static inline guint16
-float_to_half (const float x)
+float_to_half_one (const float x)
 {
   const guint b = as_uint(x)+0x00001000; // round-to-nearest-even
   const guint e = (b&0x7F800000)>>23; // exponent
@@ -58,20 +58,38 @@ void
 float_to_half4_c (const float f[4],
                   guint16     h[4])
 {
-  h[0] = float_to_half (f[0]);
-  h[1] = float_to_half (f[1]);
-  h[2] = float_to_half (f[2]);
-  h[3] = float_to_half (f[3]);
+  h[0] = float_to_half_one (f[0]);
+  h[1] = float_to_half_one (f[1]);
+  h[2] = float_to_half_one (f[2]);
+  h[3] = float_to_half_one (f[3]);
 }
 
 void
 half_to_float4_c (const guint16 h[4],
                   float         f[4])
 {
-  f[0] = half_to_float (h[0]);
-  f[1] = half_to_float (h[1]);
-  f[2] = half_to_float (h[2]);
-  f[3] = half_to_float (h[3]);
+  f[0] = half_to_float_one (h[0]);
+  f[1] = half_to_float_one (h[1]);
+  f[2] = half_to_float_one (h[2]);
+  f[3] = half_to_float_one (h[3]);
+}
+
+void
+float_to_half_c (const float *f,
+                 guint16     *h,
+                 int          n)
+{
+  for (int i = 0; i < n; i++)
+    h[i] = float_to_half_one (f[i]);
+}
+
+void
+half_to_float_c (const guint16 *h,
+                 float         *f,
+                 int            n)
+{
+  for (int i = 0; i < n; i++)
+    f[i] = half_to_float_one (h[i]);
 }
 
 #ifdef HAVE_F16C
@@ -122,10 +140,30 @@ half_to_float4 (const guint16 h[4], float f[4])
     half_to_float4_c (h, f);
 }
 
+void
+float_to_half (const float *f, guint16 *h, int n)
+{
+  if (have_f16c_msvc ())
+    float_to_half_f16c (f, h, n);
+  else
+    float_to_half4_c (f, h, n);
+}
+
+void
+half_to_float (const guint16 *h, float *f, int n)
+{
+  if (have_f16c_msvc ())
+    half_to_float_f16c (h, f, n);
+  else
+    half_to_float_c (h, f, n);
+}
+
 #else
 
 void float_to_half4 (const float f[4], guint16 h[4]) __attribute__((ifunc ("resolve_float_to_half4")));
 void half_to_float4 (const guint16 h[4], float f[4]) __attribute__((ifunc ("resolve_half_to_float4")));
+void float_to_half (const float *f, guint16 *h, int n) __attribute__((ifunc ("resolve_float_to_half")));
+void half_to_float (const guint16 *h, float *f, int n) __attribute__((ifunc ("resolve_half_to_float")));
 
 static void *
 resolve_float_to_half4 (void)
@@ -147,6 +185,26 @@ resolve_half_to_float4 (void)
     return half_to_float4_c;
 }
 
+static void *
+resolve_float_to_half (void)
+{
+  __builtin_cpu_init ();
+  if (__builtin_cpu_supports ("f16c"))
+    return float_to_half_f16c;
+  else
+    return float_to_half_c;
+}
+
+static void *
+resolve_half_to_float (void)
+{
+  __builtin_cpu_init ();
+  if (__builtin_cpu_supports ("f16c"))
+    return half_to_float_f16c;
+  else
+    return half_to_float_c;
+}
+
 #endif
 
 #else /* ! HAVE_F16C */
@@ -168,10 +226,28 @@ half_to_float4 (const guint16 h[4],
   half_to_float4_c (h, f);
 }
 
+void
+float_to_half (const float *f,
+               guint16     *h,
+               int          n)
+{
+  float_to_half_c (f, h, n);
+}
+
+void
+half_to_float (const guint16 *h,
+               float         *f,
+               int            n)
+{
+  half_to_float_c (h, f, n);
+}
+
 #else
 
 void float_to_half4 (const float f[4], guint16 h[4]) __attribute__((alias ("float_to_half4_c")));
 void half_to_float4 (const guint16 h[4], float f[4]) __attribute__((alias ("half_to_float4_c")));
+void float_to_half (const float *f, guint16 *h, int n) __attribute__((alias ("float_to_half_c")));
+void half_to_float (const guint16 *h, float *f, int n) __attribute__((alias ("half_to_float_c")));
 
 #endif
 

gsk/ngl/fp16i.c

@@ -30,7 +30,6 @@
 #else
 #define CAST_M128I_P(a) (__m128i_u const *) a
 #endif
-
 void
 float_to_half4_f16c (const float f[4],
                      guint16     h[4])
@@ -50,4 +49,74 @@ half_to_float4_f16c (const guint16 h[4],
   _mm_store_ps (f, s);
 }
 
+#define ALIGNED(p, n) (GPOINTER_TO_UINT(p) % n == 0)
+void
+float_to_half_f16c (const float *f,
+                    guint16     *h,
+                    int          n)
+{
+  __m128 s;
+  __m128i i;
+  int j;
+  const float *ff = f;
+  guint16 *hh = h;
+
+  for (j = 0; j < n; j++)
+    {
+      if (ALIGNED (ff, 16) && ALIGNED (hh, 16))
+        break;
+      ff++;
+      hh++;
+    }
+
+  float_to_half_c (f, h, j);
+
+  for (; j + 4 < n; j += 4)
+    {
+      s = _mm_loadu_ps (ff);
+      i = _mm_cvtps_ph (s, 0);
+      _mm_storel_epi64 ((__m128i*)hh, i);
+      ff += 4;
+      hh += 4;
+    }
+
+  if (j < n)
+    float_to_half_c (ff, hh, n - j);
+}
+
+void
+half_to_float_f16c (const guint16 *h,
+                    float         *f,
+                    int            n)
+{
+  __m128i i;
+  __m128 s;
+  int j;
+  const guint16 *hh = h;
+  float *ff = f;
+
+  for (j = 0; j < n; j++)
+    {
+      if (ALIGNED (ff, 16) && ALIGNED (hh, 16))
+        break;
+      ff++;
+      hh++;
+    }
+
+  half_to_float_c (h, f, j);
+
+  for (; j + 4 < n; j += 4)
+    {
+      i = _mm_loadl_epi64 (CAST_M128I_P (hh));
+      s = _mm_cvtph_ps (i);
+      _mm_store_ps (ff, s);
+      hh += 4;
+      ff += 4;
+    }
+
+  if (j < n)
+    half_to_float_c (hh, ff, n - j);
+}
+
 #endif  /* HAVE_F16C */
+

gsk/ngl/fp16private.h

@@ -35,18 +35,42 @@ void float_to_half4 (const float f[4],
 void half_to_float4 (const guint16 h[4],
                      float         f[4]);
 
+void float_to_half (const float *f,
+                    guint16     *h,
+                    int          n);
+
+void half_to_float (const guint16 *h,
+                    float         *f,
+                    int            n);
+
 void float_to_half4_f16c (const float f[4],
                           guint16     h[4]);
 
 void half_to_float4_f16c (const guint16 h[4],
                           float         f[4]);
 
+void float_to_half_f16c (const float *f,
+                         guint16     *h,
+                         int          n);
+
+void half_to_float_f16c (const guint16 *h,
+                         float         *f,
+                         int            n);
+
 void float_to_half4_c (const float f[4],
                        guint16     h[4]);
 
 void half_to_float4_c (const guint16 h[4],
                        float         f[4]);
 
+void float_to_half_c (const float *f,
+                      guint16     *h,
+                      int          n);
+
+void half_to_float_c (const guint16 *h,
+                      float         *f,
+                      int            n);
+
 G_END_DECLS
 
 #endif

gsk/ngl/gskngldriver.c

@@ -735,8 +735,7 @@ gsk_ngl_driver_load_texture (GskNglDriver *self,
                              int           mag_filter)
 {
   GdkGLContext *context;
-  GdkTexture *downloaded_texture = NULL;
-  GdkTexture *source_texture;
+  GdkTexture *downloaded_texture;
   GskNglTexture *t;
   guint texture_id;
   int height;
@@ -760,21 +759,7 @@ gsk_ngl_driver_load_texture (GskNglDriver *self,
         }
       else
         {
-          cairo_surface_t *surface;
-
-          /* In this case, we have to temporarily make the texture's
-           * context the current one, download its data into our context
-           * and then create a texture from it. */
-          if (texture_context != NULL)
-            gdk_gl_context_make_current (texture_context);
-
-          surface = gdk_texture_download_surface (texture);
-          downloaded_texture = gdk_texture_new_for_surface (surface);
-          cairo_surface_destroy (surface);
-
-          gdk_gl_context_make_current (context);
-
-          source_texture = downloaded_texture;
+          downloaded_texture = gdk_texture_download_texture (texture);
         }
     }
   else
@@ -785,13 +770,17 @@ gsk_ngl_driver_load_texture (GskNglDriver *self,
             return t->texture_id;
         }
 
-      source_texture = texture;
+      downloaded_texture = gdk_texture_download_texture (texture);
     }
 
+  /* The download_texture() call may have switched the GL context. Make sure
+   * the right context is at work again. */
+  gdk_gl_context_make_current (context);
+
   width = gdk_texture_get_width (texture);
   height = gdk_texture_get_height (texture);
   texture_id = gsk_ngl_command_queue_upload_texture (self->command_queue,
-                                                     source_texture,
+                                                     downloaded_texture,
                                                      0,
                                                      0,
                                                      width,

gsk/ngl/gsknglglyphlibrary.c

@@ -235,7 +235,7 @@ gsk_ngl_glyph_library_upload_glyph (GskNglGlyphLibrary     *self,
       pixel_data = free_data = g_malloc (width * height * 4);
       gdk_memory_convert (pixel_data,
                           width * 4,
-                          GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
+                          GDK_MEMORY_CONVERT_GLES_RGBA,
                           cairo_image_surface_get_data (surface),
                           width * 4,
                           GDK_MEMORY_DEFAULT,

gsk/ngl/gskngliconlibrary.c

@@ -115,7 +115,7 @@ gsk_ngl_icon_library_add (GskNglIconLibrary     *self,
     {
       pixel_data = free_data = g_malloc (width * height * 4);
       gdk_memory_convert (pixel_data, width * 4,
-                          GDK_MEMORY_R8G8B8A8_PREMULTIPLIED,
+                          GDK_MEMORY_CONVERT_GLES_RGBA,
                           surface_data, cairo_image_surface_get_stride (surface),
                           GDK_MEMORY_DEFAULT, width, height);
       gl_format = GL_RGBA;

gtk/gtkbuilder.c

@@ -65,14 +65,6 @@
  * using `dgettext()` in the domain specified. This can also be done by
  * calling [method@Gtk.Builder.set_translation_domain] on the builder.
  *
- * The target toolkit version(s) are described by `<requires>` elements,
- * the “lib” attribute specifies the widget library in question (currently
- * the only supported value is “gtk”) and the “version” attribute specifies
- * the target version in the form “`<major>`.`<minor>`”. `GtkBuilder` will
- * error out if the version requirements are not met.
- *
- * ### Objects
- *
  * Objects are described by `<object>` elements, which can contain
  * `<property>` elements to set properties, `<signal>` elements which
  * connect signals to handlers, and `<child>` elements, which describe
@@ -80,10 +72,16 @@
  * actions in an action group, or columns in a tree model). A `<child>`
  * element contains an `<object>` element which describes the child object.
  *
+ * The target toolkit version(s) are described by `<requires>` elements,
+ * the “lib” attribute specifies the widget library in question (currently
+ * the only supported value is “gtk”) and the “version” attribute specifies
+ * the target version in the form “`<major>`.`<minor>`”. `GtkBuilder` will
+ * error out if the version requirements are not met.
+ *
  * Typically, the specific kind of object represented by an `<object>`
  * element is specified by the “class” attribute. If the type has not
  * been loaded yet, GTK tries to find the `get_type()` function from the
- * class name by applying heuristics; this works in most cases, but if
+ * class name by applying heuristics. This works in most cases, but if
  * necessary, it is possible to specify the name of the `get_type()`
  * function explicitly with the "type-func" attribute.
  *
@@ -94,8 +92,6 @@
  * reserves ids starting and ending with `___` (three consecutive
  * underscores) for its own purposes.
  *
- * ### Properties and values
- *
  * Setting properties of objects is pretty straightforward with the
  * `<property>` element: the “name” attribute specifies the name of the
  * property, and the content of the element specifies the value.
@@ -129,27 +125,12 @@
  * exception to this rule is that an object has to be constructed before
  * it can be used as the value of a construct-only property.
  *
- * ### Property bindings
- *
- * It is possible to bind a property value to another object's
+ * It is also possible to bind a property value to another object's
  * property value using the attributes "bind-source" to specify the
  * source object of the binding, and optionally, "bind-property" and
  * "bind-flags" to specify the source property and source binding flags
  * respectively. Internally, `GtkBuilder` implements this using `GBinding`
- * objects. For more information see the documentation for
- * [method@GObject.Object.bind_property].
- *
- * ### Settings bindings
- *
- * It is possible to bind a property value to a [class@Gio.Settings] key
- * inside a schema, by using the attributes "bind-settings-schema" to
- * define the schema, and "bind-settings-key" to define the key. If either
- * attribute is set, the other is mandatory. Additionally, you can use
- * the "bind-flags" attribute to specify the [enum@Gio.SettingsBindFlags]
- * to be used by the binding. For more information see the documentation
- * for [method@Gio.Settings.bind].
- *
- * ### Internal children
+ * objects. For more information see g_object_bind_property().
  *
  * Sometimes it is necessary to refer to widgets which have implicitly
  * been constructed by GTK as part of a composite widget, to set
@@ -165,7 +146,7 @@
  * The possible values for the “type” attribute are described in the
  * sections describing the widget-specific portions of UI definitions.
  *
- * ### Signal handlers and function pointers
+ * # Signal handlers and function pointers
  *
  * Signal handlers are set up with the `<signal>` element. The “name”
  * attribute specifies the name of the signal, and the “handler” attribute
@@ -180,9 +161,9 @@
  * the following details should be noted:
  *
  * When compiling applications for Windows, you must declare signal callbacks
- * with `G_MODULE_EXPORT`, or they will not be put in the symbol table.
+ * with %G_MODULE_EXPORT, or they will not be put in the symbol table.
  * On Linux and Unix, this is not necessary; applications should instead
- * be compiled with the `-Wl,--export-dynamic` `CFLAGS`, and linked against
+ * be compiled with the -Wl,--export-dynamic `CFLAGS`, and linked against
  * `gmodule-export-2.0`.
  *
  * # A GtkBuilder UI Definition
@@ -210,10 +191,10 @@
  * ```
  *
  * Beyond this general structure, several object classes define their
- * own XML DTD fragments for filling in the `ANY` placeholders in the DTD
- * above. Note that a custom element in a `<child>` element gets parsed by
+ * own XML DTD fragments for filling in the ANY placeholders in the DTD
+ * above. Note that a custom element in a <child> element gets parsed by
  * the custom tag handler of the parent object, while a custom element in
- * an `<object>` element gets parsed by the custom tag handler of the object.
+ * an <object> element gets parsed by the custom tag handler of the object.
  *
  * These XML fragments are explained in the documentation of the
  * respective objects.
@@ -738,11 +719,6 @@ gtk_builder_take_bindings (GtkBuilder *builder,
           BindingExpressionInfo *info = l->data;
           info->target = target;
         }
-      else if (common_info->tag_type == TAG_BINDING_SETTING)
-        {
-          BindingSettingsInfo *info = l->data;
-          info->target = target;
-        }
       else
         {
           g_assert_not_reached ();
@@ -1170,17 +1146,6 @@ gtk_builder_create_bindings (GtkBuilder  *builder,
 
           free_binding_expression_info (info);
         }
-      else if (common_info->tag_type == TAG_BINDING_SETTING)
-        {
-          BindingSettingsInfo *info = l->data;
-          GSettings *settings;
-
-          settings = g_settings_new (info->schema);
-          g_settings_bind (settings, info->key, info->target, info->target_pspec->name, info->flags);
-          g_object_unref (settings);
-
-          free_binding_settings_info (info);
-        }
       else
         g_assert_not_reached ();
     }

gtk/gtkbuilderparser.c

@@ -874,8 +874,7 @@ parse_property (ParserData   *data,
   const char *bind_source = NULL;
   const char *bind_property = NULL;
   const char *bind_flags_str = NULL;
-  const char *bind_schema = NULL;
-  const char *bind_key = NULL;
+  GBindingFlags bind_flags = G_BINDING_DEFAULT;
   gboolean translatable = FALSE;
   ObjectInfo *object_info;
   GParamSpec *pspec = NULL;
@@ -898,8 +897,6 @@ parse_property (ParserData   *data,
                                     G_MARKUP_COLLECT_STRING|G_MARKUP_COLLECT_OPTIONAL, "bind-source", &bind_source,
                                     G_MARKUP_COLLECT_STRING|G_MARKUP_COLLECT_OPTIONAL, "bind-property", &bind_property,
                                     G_MARKUP_COLLECT_STRING|G_MARKUP_COLLECT_OPTIONAL, "bind-flags", &bind_flags_str,
-                                    G_MARKUP_COLLECT_STRING|G_MARKUP_COLLECT_OPTIONAL, "bind-settings-schema", &bind_schema,
-                                    G_MARKUP_COLLECT_STRING|G_MARKUP_COLLECT_OPTIONAL, "bind-settings-key", &bind_key,
                                     G_MARKUP_COLLECT_INVALID))
     {
       _gtk_builder_prefix_error (data->builder, &data->ctx, error);
@@ -919,58 +916,20 @@ parse_property (ParserData   *data,
       return;
     }
 
-  gtk_buildable_parse_context_get_position (&data->ctx, &line, &col);
-
-  if (bind_schema != NULL)
+  if (bind_flags_str)
     {
-      GSettingsBindFlags bind_flags = G_SETTINGS_BIND_DEFAULT;
-
-      if (bind_flags_str)
+      if (!_gtk_builder_flags_from_string (G_TYPE_BINDING_FLAGS, NULL, bind_flags_str, &bind_flags, error))
         {
-          if (!_gtk_builder_flags_from_string (G_TYPE_SETTINGS_BIND_FLAGS, NULL, bind_flags_str, &bind_flags, error))
-            {
-              _gtk_builder_prefix_error (data->builder, &data->ctx, error);
-              return;
-            }
-        }
-
-      if (bind_key != NULL)
-        {
-          BindingSettingsInfo *binfo;
-
-          binfo = g_slice_new0 (BindingSettingsInfo);
-          binfo->tag_type = TAG_BINDING_SETTING;
-          binfo->target = NULL;
-          binfo->target_pspec = pspec;
-          binfo->schema = g_strdup (bind_schema);
-          binfo->key = g_strdup (bind_key);
-          binfo->flags = bind_flags;
-          binfo->line = line;
-          binfo->col = col;
-
-          object_info->bindings = g_slist_prepend (object_info->bindings, binfo);
-        }
-      else
-        {
-          error_missing_attribute (data, element_name,
-                                   "bind-settings-key",
-                                   error);
+          _gtk_builder_prefix_error (data->builder, &data->ctx, error);
           return;
         }
     }
-  else if (bind_source != NULL)
-    {
-      GBindingFlags bind_flags = G_BINDING_DEFAULT;
-      BindingInfo *binfo;
 
-      if (bind_flags_str)
-        {
-          if (!_gtk_builder_flags_from_string (G_TYPE_BINDING_FLAGS, NULL, bind_flags_str, &bind_flags, error))
-            {
-              _gtk_builder_prefix_error (data->builder, &data->ctx, error);
-              return;
-            }
-        }
+  gtk_buildable_parse_context_get_position (&data->ctx, &line, &col);
+
+  if (bind_source)
+    {
+      BindingInfo *binfo;
 
       binfo = g_slice_new0 (BindingInfo);
       binfo->tag_type = TAG_BINDING;
@@ -984,14 +943,7 @@ parse_property (ParserData   *data,
 
       object_info->bindings = g_slist_prepend (object_info->bindings, binfo);
     }
-  else if (bind_key != NULL)
-    {
-      error_missing_attribute (data, element_name,
-                               "bind-settings-schema",
-                               error);
-      return;
-    }
-  else if (bind_property != NULL)
+  else if (bind_property)
     {
       error_missing_attribute (data, element_name,
                                "bind-source",
@@ -1004,7 +956,7 @@ parse_property (ParserData   *data,
   info->pspec = pspec;
   info->text = g_string_new ("");
   info->translatable = translatable;
-  info->bound = bind_source != NULL || bind_schema != NULL;
+  info->bound = bind_source != NULL;
   info->context = g_strdup (context);
   info->line = line;
   info->col = col;
@@ -1611,14 +1563,6 @@ free_binding_expression_info (BindingExpressionInfo *info)
   g_slice_free (BindingExpressionInfo, info);
 }
 
-void
-free_binding_settings_info (BindingSettingsInfo *info)
-{
-  g_free (info->schema);
-  g_free (info->key);
-  g_slice_free (BindingSettingsInfo, info);
-}
-
 static void
 free_requires_info (RequiresInfo *info,
                     gpointer      user_data)

gtk/gtkbuilderprivate.h

@@ -27,7 +27,6 @@ enum {
   TAG_PROPERTY,
   TAG_BINDING,
   TAG_BINDING_EXPRESSION,
-  TAG_BINDING_SETTING,
   TAG_REQUIRES,
   TAG_OBJECT,
   TAG_CHILD,
@@ -142,18 +141,6 @@ typedef struct
   int col;
 } BindingExpressionInfo;
 
-typedef struct
-{
-  guint tag_type;
-  GObject *target;
-  GParamSpec *target_pspec;
-  char *schema;
-  char *key;
-  GSettingsBindFlags flags;
-  int line;
-  int col;
-} BindingSettingsInfo;
-
 typedef struct {
   guint    tag_type;
   char    *library;
@@ -241,7 +228,6 @@ void _free_signal_info (SignalInfo *info,
 void _free_binding_info (BindingInfo *info,
                          gpointer user_data);
 void free_binding_expression_info (BindingExpressionInfo *info);
-void free_binding_settings_info (BindingSettingsInfo *info);
 GtkExpression * expression_info_construct (GtkBuilder      *builder,
                                            ExpressionInfo  *info,
                                            GError         **error);

gtk/gtkcsscolorvalue.c

@@ -20,10 +20,10 @@
 #include "gtkcsscolorvalueprivate.h"
 
 #include "gtkcssstylepropertyprivate.h"
-#include "gtkhslaprivate.h"
 #include "gtkprivate.h"
 #include "gtkstylepropertyprivate.h"
 
+#include "gdk/gdkhslaprivate.h"
 #include "gdk/gdkrgbaprivate.h"
 
 typedef enum {
@@ -309,10 +309,10 @@ apply_shade (const GdkRGBA *in,
              GdkRGBA       *out,
              double         factor)
 {
-  GtkHSLA hsla;
+  GdkHSLA hsla;
 
-  _gtk_hsla_init_from_rgba (&hsla, in);
-  _gtk_hsla_shade (&hsla, &hsla, factor);
+  _gdk_hsla_init_from_rgba (&hsla, in);
+  _gdk_hsla_shade (&hsla, &hsla, factor);
 
   _gdk_rgba_init_from_hsla (out, &hsla);
 }
@@ -699,6 +699,8 @@ gtk_css_color_value_can_parse (GtkCssParser *parser)
       || gtk_css_parser_has_function (parser, "shade")
       || gtk_css_parser_has_function (parser, "alpha")
       || gtk_css_parser_has_function (parser, "mix")
+      || gtk_css_parser_has_function (parser, "hsl")
+      || gtk_css_parser_has_function (parser, "hsla")
       || gtk_css_parser_has_function (parser, "rgb")
       || gtk_css_parser_has_function (parser, "rgba");
 }

gtk/gtkrenderborder.c

@@ -33,10 +33,10 @@
 #include "gtkcssrepeatvalueprivate.h"
 #include "gtkcsscolorvalueprivate.h"
 #include "gtkcssstyleprivate.h"
-#include "gtkhslaprivate.h"
 #include "gtkroundedboxprivate.h"
 #include "gtksnapshotprivate.h"
 
+#include "gdk/gdkhslaprivate.h"
 #include "gsk/gskroundedrectprivate.h"
 
 typedef struct _GtkBorderImage GtkBorderImage;
@@ -513,10 +513,10 @@ color_shade (const GdkRGBA *color,
              double         factor,
              GdkRGBA       *color_return)
 {
-  GtkHSLA hsla;
+  GdkHSLA hsla;
 
-  _gtk_hsla_init_from_rgba (&hsla, color);
-  _gtk_hsla_shade (&hsla, &hsla, factor);
+  _gdk_hsla_init_from_rgba (&hsla, color);
+  _gdk_hsla_shade (&hsla, &hsla, factor);
   _gdk_rgba_init_from_hsla (color_return, &hsla);
 }
 

gtk/gtkstack.c

@@ -690,13 +690,14 @@ gtk_stack_dispose (GObject *obj)
   GtkStack *stack = GTK_STACK (obj);
   GtkStackPrivate *priv = gtk_stack_get_instance_private (stack);
   GtkWidget *child;
-
-  if (priv->pages)
-    g_list_model_items_changed (G_LIST_MODEL (priv->pages), 0, g_list_length (priv->children), 0);
+  guint n_pages = g_list_length (priv->children);
 
   while ((child = gtk_widget_get_first_child (GTK_WIDGET (stack))))
     stack_remove (stack, child, TRUE);
 
+  if (priv->pages)
+    g_list_model_items_changed (G_LIST_MODEL (priv->pages), 0, n_pages, 0);
+
   G_OBJECT_CLASS (gtk_stack_parent_class)->dispose (obj);
 }
 

gtk/meson.build

@@ -111,7 +111,6 @@ gtk_private_sources = files([
   'gtkfilechooserutils.c',
   'gtkfilesystemmodel.c',
   'gtkgizmo.c',
-  'gtkhsla.c',
   'gtkiconcache.c',
   'gtkiconcachevalidator.c',
   'gtkiconhelper.c',

meson.build

@@ -150,11 +150,6 @@ cdata.set_quoted('GTK_DATADIR', gtk_datadir)
 cdata.set_quoted('GTK_LIBDIR', gtk_libdir)
 cdata.set_quoted('GTK_SYSCONFDIR', gtk_sysconfdir)
 cdata.set_quoted('GETTEXT_PACKAGE', 'gtk40')
-cdata.set('GTK_MAJOR_VERSION', gtk_major_version)
-cdata.set('GTK_MINOR_VERSION', gtk_minor_version)
-cdata.set('GTK_MICRO_VERSION', gtk_micro_version)
-cdata.set('GTK_BINARY_AGE', gtk_binary_age)
-cdata.set('GTK_INTERFACE_AGE', gtk_interface_age)
 
 check_headers = [
   'crt/externs.h',
@@ -212,6 +207,17 @@ foreach func : check_functions
   endif
 endforeach
 
+# We use links() because sigsetjmp() is often a macro hidden behind other macros
+cdata.set('HAVE_SIGSETJMP',
+  cc.links('''#define _POSIX_SOURCE
+              #include <setjmp.h>
+              int main (void) {
+                sigjmp_buf env;
+                sigsetjmp (env, 0);
+                return 0;
+              }''', name: 'sigsetjmp'),
+)
+
 # Check for __uint128_t (gcc) by checking for 128-bit division
 uint128_t_src = '''int main() {
 static __uint128_t v1 = 100;
@@ -394,6 +400,16 @@ pangocairo_dep = dependency('pangocairo', version: pango_req,
 pixbuf_dep     = dependency('gdk-pixbuf-2.0', version: gdk_pixbuf_req,
                             fallback : ['gdk-pixbuf', 'gdkpixbuf_dep'],
                             default_options: ['png=enabled', 'jpeg=enabled', 'builtin_loaders=png,jpeg', 'man=false'])
+png_dep        = dependency('libpng',
+                            fallback: ['libpng', 'libpng_dep'],
+                            required: true)
+tiff_dep       = dependency('libtiff-4',
+                            fallback: ['libtiff', 'libtiff4_dep'],
+                            required: true)
+jpeg_dep       = dependency('libjpeg',
+                            fallback: ['libjpeg-turbo', 'jpeg_dep'],
+                            required: true)
+
 epoxy_dep      = dependency('epoxy', version: epoxy_req,
                             fallback: ['libepoxy', 'libepoxy_dep'])
 harfbuzz_dep   = dependency('harfbuzz', version: '>= 2.1.0', required: false,
@@ -747,8 +763,7 @@ if get_option('build-examples')
 endif
 
 # config.h
-configure_file(input: 'config.h.meson',
-               output: 'config.h',
+configure_file(output: 'config.h',
                configuration: cdata)
 
 # Requires

po/sv.po

@@ -10,8 +10,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: gtk\n"
 "Report-Msgid-Bugs-To: https://gitlab.gnome.org/GNOME/gtk/-/issues/\n"
-"POT-Creation-Date: 2021-09-03 00:57+0000\n"
-"PO-Revision-Date: 2021-09-04 13:03+0200\n"
+"POT-Creation-Date: 2021-09-05 14:13+0000\n"
+"PO-Revision-Date: 2021-09-08 22:23+0200\n"
 "Last-Translator: Anders Jonsson <anders.jonsson@norsjovallen.se>\n"
 "Language-Team: Swedish <tp-sv@listor.tp-sv.se>\n"
 "Language: sv\n"
@@ -459,42 +459,54 @@ msgstr "Inget kompatibelt överföringsformat hittades"
 msgid "Failed to decode contents with mime-type of '%s'"
 msgstr "Misslyckades med att avkoda innehåll med mime-typen ”%s”"
 
-#: gdk/wayland/gdkglcontext-wayland.c:190
+#: gdk/wayland/gdkglcontext-wayland.c:191
 #: gdk/win32/gdkglcontext-win32-egl.c:399
 #: gdk/win32/gdkglcontext-win32-wgl.c:628 gdk/x11/gdkglcontext-egl.c:600
 #: gdk/x11/gdkglcontext-glx.c:613
 msgid "Unable to create a GL context"
 msgstr "Kan inte skapa en GL-kontext"
 
-#: gdk/wayland/gdkglcontext-wayland.c:484 gdk/x11/gdkglcontext-egl.c:688
-msgid "Failed to create EGL display"
-msgstr "Misslyckades med att skapa EGL-display"
+#: gdk/wayland/gdkglcontext-wayland.c:484
+msgid "libEGL not available in this sandbox"
+msgstr "libEGL är inte tillgängligt i denna sandlåda"
 
-#: gdk/wayland/gdkglcontext-wayland.c:493 gdk/x11/gdkglcontext-egl.c:697
+#: gdk/wayland/gdkglcontext-wayland.c:485
+msgid "libEGL not available"
+msgstr "libEGL inte tillgängligt"
+
+#: gdk/wayland/gdkglcontext-wayland.c:498
+msgid "Sandbox does not provide an OpenGL implementation"
+msgstr "Sandlådan tillhandahåller ingen OpenGL-implementation"
+
+#: gdk/wayland/gdkglcontext-wayland.c:499
+msgid "No OpenGL implementation available"
+msgstr "Ingen OpenGL-implementation tillgänglig"
+
+#: gdk/wayland/gdkglcontext-wayland.c:508 gdk/x11/gdkglcontext-egl.c:697
 msgid "Could not initialize EGL display"
 msgstr "Kunde inte initiera EGL-display"
 
-#: gdk/wayland/gdkglcontext-wayland.c:504 gdk/x11/gdkglcontext-egl.c:707
+#: gdk/wayland/gdkglcontext-wayland.c:519 gdk/x11/gdkglcontext-egl.c:707
 #, c-format
 msgid "EGL version %d.%d is too old. GTK requires %d.%d"
 msgstr "EGL-version %d.%d är för gammal. GTK kräver %d.%d"
 
-#: gdk/wayland/gdkglcontext-wayland.c:515
+#: gdk/wayland/gdkglcontext-wayland.c:530
 #: gdk/win32/gdkglcontext-win32-egl.c:273
 #: gdk/win32/gdkglcontext-win32-wgl.c:286
 #: gdk/win32/gdkglcontext-win32-wgl.c:304
 msgid "No GL implementation is available"
 msgstr "Ingen GL-implementation tillgänglig"
 
-#: gdk/wayland/gdkglcontext-wayland.c:525
+#: gdk/wayland/gdkglcontext-wayland.c:540
 msgid "Core GL is not available on EGL implementation"
 msgstr "Kärn-GL är inte tillgängligt på EGL-implementation"
 
-#: gdk/wayland/gdkglcontext-wayland.c:534 gdk/x11/gdkglcontext-egl.c:718
+#: gdk/wayland/gdkglcontext-wayland.c:549 gdk/x11/gdkglcontext-egl.c:718
 msgid "Surfaceless contexts are not supported on this EGL implementation"
 msgstr "Ytlösa kontexter stöds inte på denna EGL-implementation"
 
-#: gdk/wayland/gdkglcontext-wayland.c:546
+#: gdk/wayland/gdkglcontext-wayland.c:561
 #: gdk/win32/gdkglcontext-win32-egl.c:216
 #: gdk/win32/gdkglcontext-win32-egl.c:226
 #: gdk/win32/gdkglcontext-win32-wgl.c:594
@@ -717,6 +729,10 @@ msgstr "Ingen perfekt EGL-konfiguration hittades"
 msgid "EGL is not supported"
 msgstr "EGL stöds inte"
 
+#: gdk/x11/gdkglcontext-egl.c:688
+msgid "Failed to create EGL display"
+msgstr "Misslyckades med att skapa EGL-display"
+
 #: gdk/x11/gdkglcontext-glx.c:770
 msgid "No GLX configurations available"
 msgstr "Inga GLX-konfigurationer tillgängliga"
@@ -994,7 +1010,7 @@ msgstr ""
 #. * translated on keyboards used for your language, don't translate
 #. * this.
 #.
-#: gtk/gtkaccelgroup.c:826 gtk/gtkshortcutlabel.c:100
+#: gtk/gtkaccelgroup.c:837 gtk/gtkshortcutlabel.c:100
 #: gtk/gtkshortcutlabel.c:136
 msgctxt "keyboard label"
 msgid "Shift"
@@ -1005,7 +1021,7 @@ msgstr "Skift"
 #. * translated on keyboards used for your language, don't translate
 #. * this.
 #.
-#: gtk/gtkaccelgroup.c:845 gtk/gtkshortcutlabel.c:103
+#: gtk/gtkaccelgroup.c:856 gtk/gtkshortcutlabel.c:103
 #: gtk/gtkshortcutlabel.c:138
 msgctxt "keyboard label"
 msgid "Ctrl"
@@ -1016,7 +1032,7 @@ msgstr "Ctrl"
 #. * translated on keyboards used for your language, don't translate
 #. * this.
 #.
-#: gtk/gtkaccelgroup.c:864 gtk/gtkshortcutlabel.c:106
+#: gtk/gtkaccelgroup.c:875 gtk/gtkshortcutlabel.c:106
 #: gtk/gtkshortcutlabel.c:140
 msgctxt "keyboard label"
 msgid "Alt"
@@ -1027,7 +1043,7 @@ msgstr "Alt"
 #. * translated on keyboards used for your language, don't translate
 #. * this.
 #.
-#: gtk/gtkaccelgroup.c:882 gtk/gtkshortcutlabel.c:112
+#: gtk/gtkaccelgroup.c:893 gtk/gtkshortcutlabel.c:112
 #: gtk/gtkshortcutlabel.c:142
 msgctxt "keyboard label"
 msgid "Super"
@@ -1038,7 +1054,7 @@ msgstr "Super"
 #. * translated on keyboards used for your language, don't translate
 #. * this.
 #.
-#: gtk/gtkaccelgroup.c:896 gtk/gtkshortcutlabel.c:115
+#: gtk/gtkaccelgroup.c:907 gtk/gtkshortcutlabel.c:115
 #: gtk/gtkshortcutlabel.c:144
 msgctxt "keyboard label"
 msgid "Hyper"
@@ -1049,7 +1065,7 @@ msgstr "Hyper"
 #. * translated on keyboards used for your language, don't translate
 #. * this.
 #.
-#: gtk/gtkaccelgroup.c:911 gtk/gtkshortcutlabel.c:109
+#: gtk/gtkaccelgroup.c:922 gtk/gtkshortcutlabel.c:109
 #: gtk/gtkshortcutlabel.c:146
 msgctxt "keyboard label"
 msgid "Meta"
@@ -1059,17 +1075,17 @@ msgstr "Meta"
 #. * be used in accelerators such as "Ctrl+Shift+KP 1" in menus,
 #. * and therefore the translation needs to be very short.
 #.
-#: gtk/gtkaccelgroup.c:931
+#: gtk/gtkaccelgroup.c:942
 msgctxt "keyboard label"
 msgid "KP"
 msgstr "NUM"
 
-#: gtk/gtkaccelgroup.c:938
+#: gtk/gtkaccelgroup.c:949
 msgctxt "keyboard label"
 msgid "Space"
 msgstr "Blanksteg"
 
-#: gtk/gtkaccelgroup.c:941 gtk/gtkshortcutlabel.c:171
+#: gtk/gtkaccelgroup.c:952 gtk/gtkshortcutlabel.c:171
 msgctxt "keyboard label"
 msgid "Backslash"
 msgstr "Omvänt snedstreck"
@@ -1976,7 +1992,7 @@ msgstr "_Höger:"
 msgid "Paper Margins"
 msgstr "Pappersmarginaler"
 
-#: gtk/gtkentry.c:3726
+#: gtk/gtkentry.c:3743
 msgid "Insert Emoji"
 msgstr "Infoga emoji"
 
@@ -2047,7 +2063,7 @@ msgstr "Det finns redan en fil med det namnet"
 #: gtk/gtkprintbackend.c:642 gtk/gtkprinteroptionwidget.c:713
 #: gtk/gtkprintunixdialog.c:667 gtk/gtkprintunixdialog.c:823
 #: gtk/gtkwindow.c:6140 gtk/inspector/css-editor.c:248
-#: gtk/inspector/recorder.c:1245 gtk/ui/gtkappchooserdialog.ui:45
+#: gtk/inspector/recorder.c:1271 gtk/ui/gtkappchooserdialog.ui:45
 #: gtk/ui/gtkassistant.ui:52 gtk/ui/gtkcolorchooserdialog.ui:33
 #: gtk/ui/gtkfontchooserdialog.ui:24
 msgid "_Cancel"
@@ -2060,7 +2076,7 @@ msgid "_Open"
 msgstr "_Öppna"
 
 #: gtk/gtkfilechoosernative.c:574 gtk/inspector/css-editor.c:249
-#: gtk/inspector/recorder.c:1246
+#: gtk/inspector/recorder.c:1272
 msgid "_Save"
 msgstr "_Spara"
 
@@ -2138,7 +2154,7 @@ msgid "If you delete an item, it will be permanently lost."
 msgstr "Om du tar bort ett objekt är det borta för alltid."
 
 #: gtk/gtkfilechooserwidget.c:1210 gtk/gtkfilechooserwidget.c:1826
-#: gtk/gtklabel.c:5483 gtk/gtktext.c:6060 gtk/gtktextview.c:8847
+#: gtk/gtklabel.c:5483 gtk/gtktext.c:6062 gtk/gtktextview.c:8886
 msgid "_Delete"
 msgstr "_Ta bort"
 
@@ -2410,19 +2426,19 @@ msgstr "Teckenvarianter"
 msgid "OpenGL context creation failed"
 msgstr "Skapande av OpenGL-kontext misslyckades"
 
-#: gtk/gtklabel.c:5480 gtk/gtktext.c:6048 gtk/gtktextview.c:8835
+#: gtk/gtklabel.c:5480 gtk/gtktext.c:6050 gtk/gtktextview.c:8874
 msgid "Cu_t"
 msgstr "Klipp _ut"
 
-#: gtk/gtklabel.c:5481 gtk/gtktext.c:6052 gtk/gtktextview.c:8839
+#: gtk/gtklabel.c:5481 gtk/gtktext.c:6054 gtk/gtktextview.c:8878
 msgid "_Copy"
 msgstr "_Kopiera"
 
-#: gtk/gtklabel.c:5482 gtk/gtktext.c:6056 gtk/gtktextview.c:8843
+#: gtk/gtklabel.c:5482 gtk/gtktext.c:6058 gtk/gtktextview.c:8882
 msgid "_Paste"
 msgstr "Klistra _in"
 
-#: gtk/gtklabel.c:5488 gtk/gtktext.c:6069 gtk/gtktextview.c:8868
+#: gtk/gtklabel.c:5488 gtk/gtktext.c:6071 gtk/gtktextview.c:8907
 msgid "Select _All"
 msgstr "Markera _allt"
 
@@ -2710,19 +2726,19 @@ msgstr ""
 msgid "Page Setup"
 msgstr "Sidinställning"
 
-#: gtk/gtkpasswordentry.c:167
+#: gtk/gtkpasswordentry.c:173
 msgid "Hide Text"
 msgstr "Dölj text"
 
-#: gtk/gtkpasswordentry.c:172 gtk/gtkpasswordentry.c:606
+#: gtk/gtkpasswordentry.c:178 gtk/gtkpasswordentry.c:629
 msgid "Show Text"
 msgstr "Visa text"
 
-#: gtk/gtkpasswordentry.c:199
+#: gtk/gtkpasswordentry.c:216
 msgid "Caps Lock is on"
 msgstr "Caps Lock är aktiverad"
 
-#: gtk/gtkpasswordentry.c:680
+#: gtk/gtkpasswordentry.c:705
 msgid "_Show Text"
 msgstr "_Visa text"
 
@@ -3312,7 +3328,7 @@ msgid "No registered application with name “%s” for item with URI “%s” f
 msgstr ""
 "Inget registrerat program med namnet ”%s” hittades för objekt med URI ”%s”"
 
-#: gtk/gtksearchentry.c:599
+#: gtk/gtksearchentry.c:619
 msgid "Clear entry"
 msgstr "Töm sökruta"
 
@@ -3401,19 +3417,19 @@ msgstr "Försök med en annan sökning"
 msgid "Could not show link"
 msgstr "Kunde inte visa länken"
 
-#: gtk/gtktext.c:6074 gtk/gtktextview.c:8873
+#: gtk/gtktext.c:6076 gtk/gtktextview.c:8912
 msgid "Insert _Emoji"
 msgstr "Infoga _emoji"
 
-#: gtk/gtktextview.c:8855
+#: gtk/gtktextview.c:8894
 msgid "_Undo"
 msgstr "_Ångra"
 
-#: gtk/gtktextview.c:8859
+#: gtk/gtktextview.c:8898
 msgid "_Redo"
 msgstr "_Gör om"
 
-#: gtk/gtktreeexpander.c:196
+#: gtk/gtktreeexpander.c:205
 msgid "Expand"
 msgstr "Expandera"
 
@@ -3892,7 +3908,7 @@ msgstr "Källa:"
 msgid "Defined At"
 msgstr "Definierad vid"
 
-#: gtk/inspector/recorder.c:1216
+#: gtk/inspector/recorder.c:1242
 #, c-format
 msgid "Saving RenderNode failed"
 msgstr "Sparande av RenderNode misslyckades"

subprojects/libpng.wrap

@@ -0,0 +1,12 @@
+[wrap-file]
+directory = libpng-1.6.37
+source_url = https://github.com/glennrp/libpng/archive/v1.6.37.tar.gz
+source_filename = libpng-1.6.37.tar.gz
+source_hash = ca74a0dace179a8422187671aee97dd3892b53e168627145271cad5b5ac81307
+patch_url = https://wrapdb.mesonbuild.com/v2/libpng_1.6.37-3/get_patch
+patch_filename = libpng-1.6.37-3-wrap.zip
+patch_hash = 6c9f32fd9150b3a96ab89be52af664e32207e10aa9f5fb9aa015989ee2dd7100
+
+[provide]
+libpng = libpng_dep
+

subprojects/libtiff.wrap

@@ -0,0 +1,12 @@
+[wrap-file]
+directory = tiff-4.1.0
+source_url = http://download.osgeo.org/libtiff/tiff-4.1.0.zip
+source_filename = tiff-4.1.0.zip
+source_hash = 6f3dbed9d2ecfed33c7192b5c01884078970657fa21b4ad28e3cdf3438eb2419
+patch_filename = libtiff_4.1.0-4_patch.zip
+patch_url = https://wrapdb.mesonbuild.com/v2/libtiff_4.1.0-4/get_patch
+patch_hash = c0fe078d06e5a7f2480a96c3897a7b3b9fa9a42c08fb76ae5f1dd59e0519a14e
+
+[provide]
+libtiff-4 = libtiff4_dep
+

tests/testupload.c

@@ -3,7 +3,7 @@
 static const char *format_name[] = {
   "BGRAp", "ARGBp", "RGBAp",
   "BGRA", "ARGB", "RGBA", "ABGR",
-  "RGB", "BGR",
+  "RGB", "BGR", NULL
 };
 
 static const char *

testsuite/css/parser/hsl.css

@@ -0,0 +1,23 @@
+a {
+  color: hsl(0, 0%, 0%);
+}
+
+b {
+  color: hsl(120, 100%, 50%);
+}
+
+c {
+  color: hsl(360, 100%, 50%);
+}
+
+d {
+  color: hsl(-314.159, 50%, 50%);
+}
+
+e {
+  color: hsl(0, 0%, 0%, 0.5);
+}
+
+f {
+  color: hsl(1, 2, 3);
+}

testsuite/css/parser/hsl.errors

@@ -0,0 +1 @@
+hsl.css:22:17-18: error: GTK_CSS_PARSER_ERROR_SYNTAX

testsuite/css/parser/hsl.ref.css

@@ -0,0 +1,19 @@
+a {
+  color: rgb(0,0,0);
+}
+
+b {
+  color: rgb(0,255,0);
+}
+
+c {
+  color: rgb(255,0,0);
+}
+
+d {
+  color: rgb(191,161,64);
+}
+
+e {
+  color: rgba(0,0,0,0.5);
+}

testsuite/css/parser/meson.build

@@ -358,6 +358,9 @@ test_data = [
   'freed-string-in-error-messages.css',
   'freed-string-in-error-messages.errors',
   'freed-string-in-error-messages.ref.css',
+  'hsl.css',
+  'hsl.errors',
+  'hsl.ref.css',
   'import-cyclic-1.css',
   'import-cyclic-1.errors',
   'import-cyclic-1.ref.css',

testsuite/gdk/contentserializer.c

@@ -30,6 +30,49 @@ compare_rgba_values (GValue *v1, GValue *v2)
                          (GdkRGBA *)g_value_get_boxed (v2));
 }
 
+static gboolean
+textures_equal (GdkTexture *t1,  GdkTexture *t2)
+{
+  guchar *d1, *d2;
+  int width, height;
+  gboolean ret;
+
+  width = gdk_texture_get_width (t1);
+  height = gdk_texture_get_height (t1);
+
+  if (width != gdk_texture_get_width (t2))
+    return FALSE;
+  if (height != gdk_texture_get_height (t2))
+    return FALSE;
+
+  d1 = g_malloc (width * height * 4);
+  d2 = g_malloc (width * height * 4);
+
+  gdk_texture_download (t1, d1, width * 4);
+  gdk_texture_download (t2, d2, width * 4);
+
+  ret = memcmp (d1, d2, width * height * 4) == 0;
+
+  if (!ret)
+    {
+      gdk_texture_save_to_png (t1, "texture1.png");
+      gdk_texture_save_to_png (t2, "texture2.png");
+    }
+  g_free (d1);
+  g_free (d2);
+
+  return ret;
+}
+
+static gboolean
+compare_texture_values (GValue *v1, GValue *v2)
+{
+  return G_VALUE_TYPE (v1) == GDK_TYPE_TEXTURE &&
+         G_VALUE_TYPE (v2) == GDK_TYPE_TEXTURE &&
+         textures_equal ((GdkTexture *)g_value_get_object (v1),
+                         (GdkTexture *)g_value_get_object (v2));
+}
+
 static gboolean
 compare_file_values (GValue *v1, GValue *v2)
 {
@@ -125,7 +168,7 @@ test_content_roundtrip (const GValue     *value,
   TestData data = { 0, };
 
   data.ostream = g_memory_output_stream_new_resizable ();
-  data.mime_type = g_strdup (mime_type);
+  data.mime_type = mime_type;
   g_value_init (&data.value, G_VALUE_TYPE (value));
   g_value_copy (value, &data.value);
   data.compare = compare;
@@ -182,6 +225,30 @@ test_content_color (void)
   g_value_unset (&value);
 }
 
+static void
+test_content_texture (gconstpointer data)
+{
+  const char *mimetype = data;
+  GValue value = G_VALUE_INIT;
+  char *path;
+  GFile *file;
+  GdkTexture *texture;
+  GError *error = NULL;
+
+  path = g_test_build_filename (G_TEST_DIST, "image-data", "image.png", NULL);
+  file = g_file_new_for_path (path);
+  texture = gdk_texture_new_from_file (file, &error);
+  g_assert_no_error (error);
+  g_object_unref (file);
+  g_free (path);
+
+  g_value_init (&value, GDK_TYPE_TEXTURE);
+  g_value_set_object (&value, texture);
+  test_content_roundtrip (&value, mimetype, compare_texture_values);
+  g_value_unset (&value);
+  g_object_unref (texture);
+}
+
 static void
 test_content_file (void)
 {
@@ -406,6 +473,8 @@ main (int argc, char *argv[])
   g_test_add_func ("/content/text_plain_utf8", test_content_text_plain_utf8);
   g_test_add_func ("/content/text_plain", test_content_text_plain);
   g_test_add_func ("/content/color", test_content_color);
+  g_test_add_data_func ("/content/texture/png", "image/png", test_content_texture);
+  g_test_add_data_func ("/content/texture/tiff", "image/tiff", test_content_texture);
   g_test_add_func ("/content/file", test_content_file);
   g_test_add_func ("/content/files", test_content_files);
   g_test_add_func ("/content/custom", test_custom_format);

testsuite/gdk/image.c

@@ -0,0 +1,129 @@
+#include <gtk/gtk.h>
+#include "gdk/loaders/gdkpngprivate.h"
+#include "gdk/loaders/gdktiffprivate.h"
+#include "gdk/loaders/gdkjpegprivate.h"
+
+static void
+assert_texture_equal (GdkTexture *t1,
+                      GdkTexture *t2)
+{
+  int width;
+  int height;
+  int stride;
+  guchar *d1;
+  guchar *d2;
+
+  width = gdk_texture_get_width (t1);
+  height = gdk_texture_get_height (t1);
+  stride = 4 * width;
+
+  g_assert_cmpint (width, ==, gdk_texture_get_width (t2));
+  g_assert_cmpint (height, ==, gdk_texture_get_height (t2));
+
+  d1 = g_malloc (stride * height);
+  d2 = g_malloc (stride * height);
+
+  gdk_texture_download (t1, d1, stride);
+  gdk_texture_download (t2, d2, stride);
+
+  g_assert_cmpmem (d1, stride * height, d2, stride * height);
+
+  g_free (d1);
+  g_free (d2);
+}
+
+static void
+test_load_image (gconstpointer data)
+{
+  const char *filename = data;
+  GdkTexture *texture;
+  char *path;
+  GFile *file;
+  GBytes *bytes;
+  GError *error = NULL;
+
+  path = g_test_build_filename (G_TEST_DIST, "image-data", filename, NULL);
+  file = g_file_new_for_path (path);
+  bytes = g_file_load_bytes (file, NULL, NULL, &error);
+  g_assert_no_error (error);
+
+  if (g_str_has_suffix (filename, ".png"))
+    texture = gdk_load_png (bytes, &error);
+  else if (g_str_has_suffix (filename, ".tiff"))
+    texture = gdk_load_tiff (bytes, &error);
+  else if (g_str_has_suffix (filename, ".jpeg"))
+    texture = gdk_load_jpeg (bytes, &error);
+  else
+    g_assert_not_reached ();
+
+  g_assert_no_error (error);
+  g_assert_true (GDK_IS_TEXTURE (texture));
+  g_assert_cmpint (gdk_texture_get_width (texture), ==, 32);
+  g_assert_cmpint (gdk_texture_get_height (texture), ==, 32);
+
+  g_object_unref (texture);
+  g_bytes_unref (bytes);
+  g_object_unref (file);
+  g_free (path);
+}
+
+static void
+test_save_image (gconstpointer test_data)
+{
+  const char *filename = test_data;
+  char *path;
+  GFile *file;
+  GdkTexture *texture;
+  GFile *file2;
+  GdkTexture *texture2;
+  GError *error = NULL;
+  GBytes *bytes = NULL;
+  GIOStream *stream;
+
+  path = g_test_build_filename (G_TEST_DIST, "image-data", filename, NULL);
+  file = g_file_new_for_path (path);
+  texture = gdk_texture_new_from_file (file, &error);
+  g_assert_no_error (error);
+
+  if (g_str_has_suffix (filename, ".png"))
+    bytes = gdk_save_png (texture);
+  else if (g_str_has_suffix (filename, ".tiff"))
+    bytes = gdk_save_tiff (texture);
+  else
+    g_assert_not_reached ();
+
+  file2 = g_file_new_tmp ("imageXXXXXX", (GFileIOStream **)&stream, NULL);
+  g_object_unref (stream);
+  g_file_replace_contents (file2,
+                           g_bytes_get_data (bytes, NULL),
+                           g_bytes_get_size (bytes),
+                           NULL, FALSE, 0,
+                           NULL, NULL, &error);
+  g_assert_no_error (error);
+
+  texture2 = gdk_texture_new_from_file (file2, &error);
+  g_assert_no_error (error);
+
+  assert_texture_equal (texture, texture2);
+
+  g_bytes_unref (bytes);
+  g_object_unref (texture2);
+  g_object_unref (file2);
+  g_object_unref (texture);
+  g_object_unref (file);
+  g_free (path);
+}
+
+int
+main (int argc, char *argv[])
+{
+  (g_test_init) (&argc, &argv, NULL);
+
+  g_test_add_data_func ("/image/load/png", "image.png", test_load_image);
+  g_test_add_data_func ("/image/load/tiff", "image.tiff", test_load_image);
+  g_test_add_data_func ("/image/load/jpeg", "image.jpeg", test_load_image);
+  g_test_add_data_func ("/image/save/png", "image.png", test_save_image);
+  g_test_add_data_func ("/image/save/tiff", "image.tiff", test_save_image);
+
+  return g_test_run ();
+}

testsuite/gdk/memorytexture.c

@@ -1,57 +1,330 @@
-#include <locale.h>
-#include <gdk/gdk.h>
+#include <gtk/gtk.h>
 
-/* maximum bytes per pixel */
-#define MAX_BPP 4
+#include "gsk/ngl/gsknglrenderer.h"
+
+#define N 20
+
+static GskRenderer *gl_renderer = NULL;
+
+typedef struct _TextureBuilder TextureBuilder;
 
 typedef enum {
-  BLUE,
-  GREEN,
-  RED,
-  TRANSPARENT,
-  ALMOST_OPAQUE_REBECCAPURPLE,
-  N_COLORS
-} Color;
+  TEXTURE_METHOD_LOCAL,
+  TEXTURE_METHOD_GL,
+  TEXTURE_METHOD_GL_RELEASED,
+  TEXTURE_METHOD_PNG,
+  TEXTURE_METHOD_TIFF,
 
-const char * color_names[N_COLORS] = {
-  "blue",
-  "green",
-  "red",
-  "transparent",
-  "almost_opaque_rebeccapurple"
-};
+  N_TEXTURE_METHODS
+} TextureMethod;
 
-typedef struct _MemoryData {
-  gsize bytes_per_pixel;
-  guint opaque : 1;
-  guchar data[N_COLORS][MAX_BPP];
-} MemoryData;
-
-typedef struct _TestData {
+struct _TextureBuilder
+{
   GdkMemoryFormat format;
-  Color color;
-} TestData;
+  int width;
+  int height;
 
-#define RGBA(a, b, c, d) { 0x ## a, 0x ## b, 0x ## c, 0x ## d }
-
-static MemoryData tests[GDK_MEMORY_N_FORMATS] = {
-  { 4, FALSE, { RGBA(FF,00,00,FF), RGBA(00,FF,00,FF), RGBA(00,00,FF,FF), RGBA(00,00,00,00), RGBA(66,22,44,AA) } },
-  { 4, FALSE, { RGBA(FF,00,00,FF), RGBA(FF,00,FF,00), RGBA(FF,FF,00,00), RGBA(00,00,00,00), RGBA(AA,44,22,66) } },
-  { 4, FALSE, { RGBA(00,00,FF,FF), RGBA(00,FF,00,FF), RGBA(FF,00,00,FF), RGBA(00,00,00,00), RGBA(44,22,66,AA) } },
-  { 4, FALSE, { RGBA(FF,00,00,FF), RGBA(00,FF,00,FF), RGBA(00,00,FF,FF), RGBA(00,00,00,00), RGBA(99,33,66,AA) } },
-  { 4, FALSE, { RGBA(FF,00,00,FF), RGBA(FF,00,FF,00), RGBA(FF,FF,00,00), RGBA(00,00,00,00), RGBA(AA,66,33,99) } },
-  { 4, FALSE, { RGBA(00,00,FF,FF), RGBA(00,FF,00,FF), RGBA(FF,00,00,FF), RGBA(00,00,00,00), RGBA(66,33,99,AA) } },
-  { 4, FALSE, { RGBA(FF,FF,00,00), RGBA(FF,00,FF,00), RGBA(FF,00,00,FF), RGBA(00,00,00,00), RGBA(AA,99,33,66) } },
-  { 3, TRUE,  { RGBA(00,00,FF,00), RGBA(00,FF,00,00), RGBA(FF,00,00,00), RGBA(00,00,00,00), RGBA(44,22,66,00) } },
-  { 3, TRUE,  { RGBA(FF,00,00,00), RGBA(00,FF,00,00), RGBA(00,00,FF,00), RGBA(00,00,00,00), RGBA(66,22,44,00) } },
+  guchar *pixels;
+  gsize stride;
+  gsize offset;
 };
 
+static gsize
+gdk_memory_format_bytes_per_pixel (GdkMemoryFormat format)
+{
+  switch (format)
+    {
+    case GDK_MEMORY_R8G8B8:
+    case GDK_MEMORY_B8G8R8:
+      return 3;
+
+    case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
+    case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
+    case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
+    case GDK_MEMORY_B8G8R8A8:
+    case GDK_MEMORY_A8R8G8B8:
+    case GDK_MEMORY_R8G8B8A8:
+    case GDK_MEMORY_A8B8G8R8:
+      return 4;
+
+    case GDK_MEMORY_R16G16B16:
+    case GDK_MEMORY_R16G16B16_FLOAT:
+      return 6;
+
+    case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
+    case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
+      return 8;
+
+    case GDK_MEMORY_R32G32B32_FLOAT:
+      return 12;
+
+    case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
+      return 16;
+
+    case GDK_MEMORY_N_FORMATS:
+    default:
+      g_assert_not_reached ();
+      return 4;
+    }
+}
+
+static gboolean
+gdk_memory_format_has_alpha (GdkMemoryFormat format)
+{
+  switch (format)
+    {
+    case GDK_MEMORY_R8G8B8:
+    case GDK_MEMORY_B8G8R8:
+    case GDK_MEMORY_R16G16B16:
+    case GDK_MEMORY_R16G16B16_FLOAT:
+    case GDK_MEMORY_R32G32B32_FLOAT:
+      return FALSE;
+
+    case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
+    case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
+    case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
+    case GDK_MEMORY_B8G8R8A8:
+    case GDK_MEMORY_A8R8G8B8:
+    case GDK_MEMORY_R8G8B8A8:
+    case GDK_MEMORY_A8B8G8R8:
+    case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
+    case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
+    case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
+      return TRUE;
+
+    case GDK_MEMORY_N_FORMATS:
+    default:
+      g_assert_not_reached ();
+      return TRUE;
+    }
+}
+
+static gpointer
+encode (GdkMemoryFormat format,
+        TextureMethod   method)
+{
+  return GSIZE_TO_POINTER (method * GDK_MEMORY_N_FORMATS + format);
+}
+
+static void
+decode (gconstpointer     data,
+        GdkMemoryFormat *format,
+        TextureMethod   *method)
+{
+  gsize value = GPOINTER_TO_SIZE (data);
+
+  *format = value % GDK_MEMORY_N_FORMATS;
+  value /= GDK_MEMORY_N_FORMATS;
+
+  *method = value;
+}
+        
+static void
+texture_builder_init (TextureBuilder  *builder,
+                      GdkMemoryFormat  format,
+                      int              width,
+                      int              height)
+{
+  gsize extra_stride;
+
+  builder->format = format;
+  builder->width = width;
+  builder->height = height;
+
+  extra_stride = g_test_rand_bit() ? g_test_rand_int_range (0, 16) : 0;
+  builder->offset = g_test_rand_bit() ? g_test_rand_int_range (0, 128) : 0;
+  builder->stride = width * gdk_memory_format_bytes_per_pixel (format) + extra_stride;
+  builder->pixels = g_malloc0 (builder->offset + builder->stride * height);
+}
+
+static GdkTexture *
+texture_builder_finish (TextureBuilder *builder)
+{
+  GBytes *bytes;
+  GdkTexture *texture;
+
+  bytes = g_bytes_new_with_free_func (builder->pixels + builder->offset,
+                                      builder->height * builder->stride,
+                                      g_free,
+                                      builder->pixels);
+  texture = gdk_memory_texture_new (builder->width,
+                                    builder->height,
+                                    builder->format,
+                                    bytes,
+                                    builder->stride);
+  g_bytes_unref (bytes);
+
+  return texture;
+}
+
+static inline void
+set_pixel_u8 (guchar          *data,
+              int              r,
+              int              g,
+              int              b,
+              int              a,
+              gboolean         premultiply,
+              const GdkRGBA   *color)
+{
+  if (a >= 0)
+    data[a] = CLAMP (color->alpha * 256.f, 0.f, 255.f);
+  if (premultiply)
+    {
+      data[r] = CLAMP (color->red * color->alpha * 256.f, 0.f, 255.f);
+      data[g] = CLAMP (color->green * color->alpha * 256.f, 0.f, 255.f);
+      data[b] = CLAMP (color->blue * color->alpha * 256.f, 0.f, 255.f);
+    }
+  else
+    {
+      data[r] = CLAMP (color->red * 256.f, 0.f, 255.f);
+      data[g] = CLAMP (color->green * 256.f, 0.f, 255.f);
+      data[b] = CLAMP (color->blue * 256.f, 0.f, 255.f);
+    }
+}
+
+static inline guint16
+float_to_half (const float x)
+{
+  const guint b = *(guint*)&x+0x00001000; // round-to-nearest-even
+  const guint e = (b&0x7F800000)>>23; // exponent
+  const guint m = b&0x007FFFFF; // mantissa
+  return (b&0x80000000)>>16 | (e>112)*((((e-112)<<10)&0x7C00)|m>>13) | ((e<113)&(e>101))*((((0x007FF000+m)>>(125-e))+1)>>1) | (e>143)*0x7FFF; // sign : normalized : denormalized : saturate
+}
+
+static void
+texture_builder_set_pixel (TextureBuilder  *builder,
+                           int              x,
+                           int              y,
+                           const GdkRGBA   *color)
+{
+  guchar *data;
+
+  g_assert_cmpint (x, >=, 0);
+  g_assert_cmpint (x, <, builder->width);
+  g_assert_cmpint (y, >=, 0);
+  g_assert_cmpint (y, <, builder->height);
+
+  data = builder->pixels
+         + builder->offset
+         + y * builder->stride
+         + x * gdk_memory_format_bytes_per_pixel (builder->format);
+
+  switch (builder->format)
+  {
+    case GDK_MEMORY_B8G8R8A8_PREMULTIPLIED:
+      set_pixel_u8 (data, 2, 1, 0, 3, TRUE, color);
+      break;
+    case GDK_MEMORY_A8R8G8B8_PREMULTIPLIED:
+      set_pixel_u8 (data, 1, 2, 3, 0, TRUE, color);
+      break;
+    case GDK_MEMORY_R8G8B8A8_PREMULTIPLIED:
+      set_pixel_u8 (data, 0, 1, 2, 3, TRUE, color);
+      break;
+    case GDK_MEMORY_B8G8R8A8:
+      set_pixel_u8 (data, 2, 1, 0, 3, FALSE, color);
+      break;
+    case GDK_MEMORY_A8R8G8B8:
+      set_pixel_u8 (data, 1, 2, 3, 0, FALSE, color);
+      break;
+    case GDK_MEMORY_R8G8B8A8:
+      set_pixel_u8 (data, 0, 1, 2, 3, FALSE, color);
+      break;
+    case GDK_MEMORY_A8B8G8R8:
+      set_pixel_u8 (data, 3, 2, 1, 0, FALSE, color);
+      break;
+    case GDK_MEMORY_R8G8B8:
+      set_pixel_u8 (data, 0, 1, 2, -1, TRUE, color);
+      break;
+    case GDK_MEMORY_B8G8R8:
+      set_pixel_u8 (data, 2, 1, 0, -1, TRUE, color);
+      break;
+    case GDK_MEMORY_R16G16B16:
+      {
+        guint16 pixels[3] = {
+          CLAMP (color->red * color->alpha * 65536.f, 0, 65535.f),
+          CLAMP (color->green * color->alpha * 65536.f, 0, 65535.f),
+          CLAMP (color->blue * color->alpha * 65536.f, 0, 65535.f),
+        };
+        memcpy (data, pixels, 3 * sizeof (guint16));
+      }
+      break;
+    case GDK_MEMORY_R16G16B16A16_PREMULTIPLIED:
+      {
+        guint16 pixels[4] = {
+          CLAMP (color->red * color->alpha * 65536.f, 0, 65535.f),
+          CLAMP (color->green * color->alpha * 65536.f, 0, 65535.f),
+          CLAMP (color->blue * color->alpha * 65536.f, 0, 65535.f),
+          CLAMP (color->alpha * 65536.f, 0, 65535.f),
+        };
+        memcpy (data, pixels, 4 * sizeof (guint16));
+      }
+      break;
+    case GDK_MEMORY_R16G16B16_FLOAT:
+      {
+        guint16 pixels[3] = {
+          float_to_half (color->red * color->alpha),
+          float_to_half (color->green * color->alpha),
+          float_to_half (color->blue * color->alpha)
+        };
+        memcpy (data, pixels, 3 * sizeof (guint16));
+      }
+      break;
+    case GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED:
+      {
+        guint16 pixels[4] = {
+          float_to_half (color->red * color->alpha),
+          float_to_half (color->green * color->alpha),
+          float_to_half (color->blue * color->alpha),
+          float_to_half (color->alpha)
+        };
+        memcpy (data, pixels, 4 * sizeof (guint16));
+      }
+      break;
+    case GDK_MEMORY_R32G32B32_FLOAT:
+      {
+        float pixels[3] = {
+          color->red * color->alpha,
+          color->green * color->alpha,
+          color->blue * color->alpha
+        };
+        memcpy (data, pixels, 3 * sizeof (float));
+      }
+      break;
+    case GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED:
+      {
+        float pixels[4] = {
+          color->red * color->alpha,
+          color->green * color->alpha,
+          color->blue * color->alpha,
+          color->alpha
+        };
+        memcpy (data, pixels, 4 * sizeof (float));
+      }
+      break;
+    case GDK_MEMORY_N_FORMATS:
+    default:
+      g_assert_not_reached ();
+      break;
+  }
+}
+
+static void
+texture_builder_fill (TextureBuilder  *builder,
+                      const GdkRGBA   *color)
+{
+  int x, y;
+
+  for (y = 0; y < builder->height; y++)
+    for (x = 0; x < builder->width; x++)
+      texture_builder_set_pixel (builder, x, y, color);
+}
+
 static void
 compare_textures (GdkTexture *expected,
                   GdkTexture *test,
-                  gboolean    ignore_alpha)
+                  gboolean    has_alpha)
 {
-  guchar *expected_data, *test_data;
+  guint32 *expected_data, *test_data;
   int width, height;
   int x, y;
 
@@ -61,20 +334,64 @@ compare_textures (GdkTexture *expected,
   width = gdk_texture_get_width (expected);
   height = gdk_texture_get_height (expected);
 
-  expected_data = g_malloc (width * height * 4);
-  gdk_texture_download (expected, expected_data, width * 4);
+  expected_data = g_new (guint32, width * height);
+  gdk_texture_download (expected, (guchar *) expected_data, width * 4);
 
-  test_data = g_malloc (width * height * 4);
-  gdk_texture_download (test, test_data, width * 4);
+  test_data = g_new (guint32, width * height);
+  gdk_texture_download (test, (guchar *) test_data, width * 4);
 
   for (y = 0; y < height; y++)
     {
       for (x = 0; x < width; x++)
         {
-          if (ignore_alpha)
-            g_assert_cmphex (*(guint32 *) &expected_data[y * width + x * 4] & 0xFFFFFF, ==, *(guint32 *) &test_data[y * width + x * 4] & 0xFFFFFF);
+          if (has_alpha)
+            g_assert_cmphex (expected_data[y * width + x], ==, test_data[y * width + x]);
           else
-            g_assert_cmphex (*(guint32 *) &expected_data[y * width + x * 4], ==, *(guint32 *) &test_data[y * width + x * 4]);
+            g_assert_cmphex (expected_data[y * width + x] | 0xFF000000, ==, test_data[y * width + x]);
+        }
+    }
+
+  g_free (expected_data);
+  g_free (test_data);
+}
+
+static void
+compare_textures_float (GdkTexture *expected,
+                        GdkTexture *test,
+                        float       eps,
+                        gboolean    has_alpha)
+{
+  static int R = 0;
+  static int G = 1;
+  static int B = 2;
+  static int A = 3;
+  float *expected_data, *test_data;
+  int width, height;
+  int x, y;
+
+  g_assert_cmpint (gdk_texture_get_width (expected), ==, gdk_texture_get_width (test));
+  g_assert_cmpint (gdk_texture_get_height (expected), ==, gdk_texture_get_height (test));
+
+  width = gdk_texture_get_width (expected);
+  height = gdk_texture_get_height (expected);
+
+  expected_data = g_new (float, width * height * 4);
+  gdk_texture_download_float (expected, expected_data, width * 4);
+
+  test_data = g_new (float, width * height * 4);
+  gdk_texture_download_float (test, test_data, width * 4);
+
+  for (y = 0; y < height; y++)
+    {
+      for (x = 0; x < width; x++)
+        {
+          g_assert_cmpfloat_with_epsilon (expected_data[y * width + 4 * x + R], test_data[y * width + 4 * x + R], eps);
+          g_assert_cmpfloat_with_epsilon (expected_data[y * width + 4 * x + G], test_data[y * width + 4 * x + G], eps);
+          g_assert_cmpfloat_with_epsilon (expected_data[y * width + 4 * x + B], test_data[y * width + 4 * x + B], eps);
+          if (has_alpha)
+            g_assert_cmpfloat_with_epsilon (expected_data[y * width + 4 * x + A], test_data[y * width + 4 * x + A], eps);
+          else
+            g_assert_cmpfloat (1.0, ==, test_data[y * width + 4 * x + A]);
         }
     }
 
@@ -82,149 +399,255 @@ compare_textures (GdkTexture *expected,
   g_free (test_data);
 }
 
+static GdkTexture *
+upload_to_gl (GdkTexture *texture)
+{
+  GskRenderNode *node;
+  GdkTexture *result;
+
+  if (gl_renderer == NULL)
+    return texture;
+
+  node = gsk_texture_node_new (texture,
+                               &GRAPHENE_RECT_INIT(
+                                 0, 0, 
+                                 gdk_texture_get_width (texture),
+                                 gdk_texture_get_height (texture)
+                               ));
+  result = gsk_renderer_render_texture (gl_renderer, node, NULL);
+  gsk_render_node_unref (node);
+  g_object_unref (texture);
+
+  return result;
+}
+
 static GdkTexture *
 create_texture (GdkMemoryFormat  format,
-                Color            color,
+                TextureMethod    method,
                 int              width,
                 int              height,
-                gsize            stride)
+                const GdkRGBA   *color)
 {
+  TextureBuilder builder;
   GdkTexture *texture;
-  GBytes *bytes;
-  guchar *data;
-  int x, y;
 
-  data = g_malloc (height * MAX (stride, tests[format].bytes_per_pixel));
-  for (y = 0; y < height; y++)
-    for (x = 0; x < width; x++)
+  texture_builder_init (&builder, format, width, height);
+  texture_builder_fill (&builder, color);
+
+  texture = texture_builder_finish (&builder);
+
+  switch (method)
+  {
+    case TEXTURE_METHOD_LOCAL:
+      break;
+
+    case TEXTURE_METHOD_GL:
+      texture = upload_to_gl (texture);
+      break;
+
+    case TEXTURE_METHOD_GL_RELEASED:
+      texture = upload_to_gl (texture);
+      gdk_gl_texture_release (GDK_GL_TEXTURE (texture));
+      break;
+
+    case TEXTURE_METHOD_PNG:
       {
-        memcpy (&data[y * stride + x * tests[format].bytes_per_pixel],
-                &tests[format].data[color],
-                tests[format].bytes_per_pixel);
+        GBytes *bytes = gdk_texture_save_to_png_bytes (texture);
+        g_assert (bytes);
+        g_object_unref (texture);
+        texture = gdk_texture_new_from_bytes (bytes, NULL);
+        g_assert (texture);
+        g_bytes_unref (bytes);
       }
+      break;
 
-  bytes = g_bytes_new_take (data, height * MAX (stride, tests[format].bytes_per_pixel));
-  texture = gdk_memory_texture_new (width, height,
-                                    format,
-                                    bytes,
-                                    stride);
-  g_bytes_unref (bytes);
+    case TEXTURE_METHOD_TIFF:
+      {
+        GBytes *bytes = gdk_texture_save_to_tiff_bytes (texture);
+        g_assert (bytes);
+        g_object_unref (texture);
+        texture = gdk_texture_new_from_bytes (bytes, NULL);
+        g_assert (texture);
+        g_bytes_unref (bytes);
+      }
+      break;
+
+    case N_TEXTURE_METHODS:
+    default:
+      g_assert_not_reached ();
+      break;
+  }
 
   return texture;
 }
 
 static void
-test_download_1x1 (gconstpointer data)
+create_random_color (GdkRGBA *color)
 {
-  const TestData *test_data = data;
-  GdkTexture *expected, *test;
-
-  expected = create_texture (GDK_MEMORY_DEFAULT, test_data->color, 1, 1, tests[test_data->format].bytes_per_pixel);
-  test = create_texture (test_data->format, test_data->color, 1, 1, tests[test_data->format].bytes_per_pixel);
-
-  compare_textures (expected, test, tests[test_data->format].opaque);
-
-  g_object_unref (expected);
-  g_object_unref (test);
+  /* Generate colors so that premultiplying will result in values in steps of 1/15th */
+  color->red = g_test_rand_int_range (0, 6) / 5.f;
+  color->green = g_test_rand_int_range (0, 6) / 5.f;
+  color->blue = g_test_rand_int_range (0, 6) / 5.f;
+  color->alpha = g_test_rand_int_range (0, 4) / 3.f;
 }
 
 static void
-test_download_1x1_with_stride (gconstpointer data)
+test_download_1x1 (gconstpointer data)
 {
-  const TestData *test_data = data;
+  GdkMemoryFormat format;
+  TextureMethod method;
   GdkTexture *expected, *test;
+  gsize i;
 
-  expected = create_texture (GDK_MEMORY_DEFAULT, test_data->color, 1, 1, 4);
-  test = create_texture (test_data->format, test_data->color, 1, 1, 2 * MAX_BPP);
+  decode (data, &format, &method);
 
-  compare_textures (expected, test, tests[test_data->format].opaque);
+  for (i = 0; i < N; i++)
+    {
+      GdkRGBA color;
 
-  g_object_unref (expected);
-  g_object_unref (test);
+      create_random_color (&color);
+      expected = create_texture (GDK_MEMORY_DEFAULT, TEXTURE_METHOD_LOCAL, 1, 1, &color);
+      test = create_texture (format, method, 1, 1, &color);
+      
+      compare_textures (expected, test, gdk_memory_format_has_alpha (format));
+
+      g_object_unref (expected);
+      g_object_unref (test);
+    }
 }
 
 static void
 test_download_4x4 (gconstpointer data)
 {
-  const TestData *test_data = data;
+  GdkMemoryFormat format;
+  TextureMethod method;
   GdkTexture *expected, *test;
+  gsize i;
 
-  expected = create_texture (GDK_MEMORY_DEFAULT, test_data->color, 4, 4, 16);
-  test = create_texture (test_data->format, test_data->color, 4, 4, 4 * tests[test_data->format].bytes_per_pixel);
+  decode (data, &format, &method);
 
-  compare_textures (expected, test, tests[test_data->format].opaque);
+  for (i = 0; i < N; i++)
+    {
+      GdkRGBA color;
 
-  g_object_unref (expected);
-  g_object_unref (test);
+      create_random_color (&color);
+      expected = create_texture (GDK_MEMORY_DEFAULT, TEXTURE_METHOD_LOCAL, 4, 4, &color);
+      test = create_texture (format, method, 4, 4, &color);
+      
+      compare_textures (expected, test, gdk_memory_format_has_alpha (format));
+
+      g_object_unref (expected);
+      g_object_unref (test);
+    }
 }
 
 static void
-test_download_4x4_with_stride (gconstpointer data)
-{
-  const TestData *test_data = data;
-  GdkTexture *expected, *test;
-
-  expected = create_texture (GDK_MEMORY_DEFAULT, test_data->color, 4, 4, 16);
-  test = create_texture (test_data->format, test_data->color, 4, 4, 4 * MAX_BPP);
-
-  compare_textures (expected, test, tests[test_data->format].opaque);
-
-  g_object_unref (expected);
-  g_object_unref (test);
-}
-
-int
-main (int argc, char *argv[])
+test_download_float_1x1 (gconstpointer data)
 {
   GdkMemoryFormat format;
-  Color color;
-  GEnumClass *enum_class;
+  TextureMethod method;
+  GdkTexture *expected, *test;
+  gsize i;
 
-  (g_test_init) (&argc, &argv, NULL);
+  decode (data, &format, &method);
+
+  for (i = 0; i < N; i++)
+    {
+      GdkRGBA color;
+
+      create_random_color (&color);
+      expected = create_texture (GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED, TEXTURE_METHOD_LOCAL, 1, 1, &color);
+      test = create_texture (format, method, 1, 1, &color);
+      
+      compare_textures_float (expected, test,
+                              G_MINFLOAT,
+                              gdk_memory_format_has_alpha (format));
+
+      g_object_unref (expected);
+      g_object_unref (test);
+    }
+}
+
+static void
+test_download_float_4x4 (gconstpointer data)
+{
+  GdkMemoryFormat format;
+  TextureMethod method;
+  GdkTexture *expected, *test;
+  gsize i;
+
+  decode (data, &format, &method);
+
+  for (i = 0; i < N; i++)
+    {
+      GdkRGBA color;
+
+      create_random_color (&color);
+      expected = create_texture (GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED, TEXTURE_METHOD_LOCAL, 4, 4, &color);
+      test = create_texture (format, method, 4, 4, &color);
+      
+      compare_textures_float (expected, test, G_MINFLOAT, gdk_memory_format_has_alpha (format));
+
+      g_object_unref (expected);
+      g_object_unref (test);
+    }
+}
+
+
+static void
+add_test (const char    *name,
+          GTestDataFunc  func)
+{
+  GdkMemoryFormat format;
+  TextureMethod method;
+  GEnumClass *enum_class;
 
   enum_class = g_type_class_ref (GDK_TYPE_MEMORY_FORMAT);
 
   for (format = 0; format < GDK_MEMORY_N_FORMATS; format++)
     {
-      for (color = 0; color < N_COLORS; color++)
+      for (method = 0; method < N_TEXTURE_METHODS; method++)
         {
-          TestData *test_data = g_new (TestData, 1);
-          char *test_name = g_strdup_printf ("/memorytexture/download_1x1/%s/%s",
+          const char *method_names[N_TEXTURE_METHODS] = { "local", "gl", "gl-released", "png", "tiff" };
+          char *test_name = g_strdup_printf ("%s/%s/%s",
+                                             name,
                                              g_enum_get_value (enum_class, format)->value_nick,
-                                             color_names[color]);
-          test_data->format = format;
-          test_data->color = color;
-          g_test_add_data_func_full (test_name, test_data, test_download_1x1, g_free);
-          g_free (test_name);
-
-          test_data = g_new (TestData, 1);
-          test_name = g_strdup_printf ("/memorytexture/download_1x1_with_stride/%s/%s",
-                                       g_enum_get_value (enum_class, format)->value_nick,
-                                       color_names[color]);
-          test_data->format = format;
-          test_data->color = color;
-          g_test_add_data_func_full (test_name, test_data, test_download_1x1_with_stride, g_free);
-          g_free (test_name);
-
-          test_data = g_new (TestData, 1);
-          test_name = g_strdup_printf ("/memorytexture/download_4x4/%s/%s",
-                                       g_enum_get_value (enum_class, format)->value_nick,
-                                       color_names[color]);
-          test_data->format = format;
-          test_data->color = color;
-          g_test_add_data_func_full (test_name, test_data, test_download_4x4, g_free);
-          g_free (test_name);
-
-          test_data = g_new (TestData, 1);
-          test_name = g_strdup_printf ("/memorytexture/download_4x4_with_stride/%s/%s",
-                                       g_enum_get_value (enum_class, format)->value_nick,
-                                       color_names[color]);
-          test_data->format = format;
-          test_data->color = color;
-          g_test_add_data_func_full (test_name, test_data, test_download_4x4_with_stride, g_free);
+                                             method_names[method]);
+          g_test_add_data_func_full (test_name, encode (format, method), test_download_1x1, NULL);
           g_free (test_name);
         }
     }
-
-  return g_test_run ();
+}
+
+int
+main (int argc, char *argv[])
+{
+  GdkSurface *surface;
+  int result;
+
+  gtk_test_init (&argc, &argv, NULL);
+
+  add_test ("/memorytexture/download_1x1", test_download_1x1);
+  add_test ("/memorytexture/download_4x4", test_download_4x4);
+  add_test ("/memorytexture/download_float_1x1", test_download_float_1x1);
+  add_test ("/memorytexture/download_float_4x4", test_download_float_4x4);
+
+  surface = gdk_surface_new_toplevel (gdk_display_get_default());
+  gl_renderer = gsk_ngl_renderer_new ();
+  if (!gsk_renderer_realize (gl_renderer, surface, NULL))
+    {
+      g_clear_object (&gl_renderer);
+      g_clear_object (&surface);
+    }
+
+  result = g_test_run ();
+
+  if (gl_renderer)
+    {
+      gsk_renderer_unrealize (gl_renderer);
+      g_clear_object (&gl_renderer);
+    }
+  g_clear_object (&surface);
+
+  return result;
 }

testsuite/gdk/meson.build

@@ -26,6 +26,7 @@ tests = [
   'rgba',
   'seat',
   'texture',
+  'texture-threads',
 ]
 
 foreach t : tests
@@ -48,6 +49,31 @@ foreach t : tests
   )
 endforeach
 
+internal_tests = [
+  'image'
+]
+
+foreach t : internal_tests
+  test_exe = executable(t, '@0@.c'.format(t),
+    c_args: common_cflags,
+    dependencies: libgtk_static_dep,
+    install: get_option('install-tests'),
+    install_dir: testexecdir,
+  )
+
+  test(t, test_exe,
+    args: [ '--tap', '-k' ],
+    protocol: 'tap',
+    env: [
+      'G_TEST_SRCDIR=@0@'.format(meson.current_source_dir()),
+      'G_TEST_BUILDDIR=@0@'.format(meson.current_build_dir()),
+      'DBUS_SESSION_BUS_ADDRESS=',
+    ],
+    suite: 'gdk',
+  )
+endforeach
+
+
 if get_option('install-tests')
   foreach t : tests
     test_cdata = configuration_data()
@@ -62,4 +88,5 @@ if get_option('install-tests')
   endforeach
 
   install_subdir('clipboard-data', install_dir: testexecdir)
+  install_subdir('image-data', install_dir: testexecdir)
 endif

testsuite/gdk/rgba.c

@@ -65,6 +65,30 @@ test_color_parse (void)
   res = gdk_rgba_parse (&color, "#0080ff88");
   g_assert_true (res);
   g_assert_true (gdk_rgba_equal (&color, &expected));
+
+  expected.red = 1.0;
+  expected.green = 0.0;
+  expected.blue = 0.0;
+  expected.alpha = 1.0;
+  res = gdk_rgba_parse (&color, "hsl (0, 100%, 50%)");
+  g_assert_true (res);
+  g_assert_true (gdk_rgba_equal (&color, &expected));
+
+  expected.red = 0.0;
+  expected.green = 1.0;
+  expected.blue = 0.0;
+  expected.alpha = 0.1;
+  res = gdk_rgba_parse (&color, "hsla (120, 255, 50%, 0.1)");
+  g_assert_true (res);
+  g_assert_true (gdk_rgba_equal (&color, &expected));
+
+  expected.red = 0.0;
+  expected.green = 0.5;
+  expected.blue = 0.5;
+  expected.alpha = 1.0;
+  res = gdk_rgba_parse (&color, "hsl(180, 100%, 25%)");
+  g_assert_true (res);
+  g_assert_true (gdk_rgba_equal (&color, &expected));
 }
 
 static void

testsuite/gdk/texture-threads.c

@@ -0,0 +1,103 @@
+#include <gtk/gtk.h>
+
+#include "gsk/ngl/gsknglrenderer.h"
+
+/* This function will be called from a thread and/or the main loop.
+ * Textures are threadsafe after all. */
+static void
+ensure_texture_access (GdkTexture *texture)
+{
+  /* Make sure to initialize the pixel to anything but red */
+  guint32 pixel = 0;
+  float float_pixel[4] = { INFINITY, INFINITY, INFINITY, INFINITY };
+
+  /* Just to be sure */
+  g_assert_cmpint (gdk_texture_get_width (texture), ==, 1);
+  g_assert_cmpint (gdk_texture_get_height (texture), ==, 1);
+
+  /* download the pixel */
+  gdk_texture_download (texture, (guchar *) &pixel, 4);
+  gdk_texture_download_float (texture, float_pixel, 4);
+
+  /* check the pixel is now red */
+  g_assert_cmphex (pixel, ==, 0xFFFF0000);
+  g_assert_cmpfloat (float_pixel[0], ==, 1.0);
+  g_assert_cmpfloat (float_pixel[1], ==, 0.0);
+  g_assert_cmpfloat (float_pixel[2], ==, 0.0);
+  g_assert_cmpfloat (float_pixel[3], ==, 1.0);
+}
+
+static void
+texture_download_done (GObject      *texture,
+                       GAsyncResult *res,
+                       gpointer      loop)
+{
+  ensure_texture_access (GDK_TEXTURE (texture));
+
+  g_main_loop_quit (loop);
+}
+
+static void
+texture_download_thread (GTask        *task,
+                         gpointer      texture,
+                         gpointer      unused,
+                         GCancellable *cancellable)
+{
+  ensure_texture_access (GDK_TEXTURE (texture));
+
+  g_task_return_boolean (task, TRUE);
+}
+
+static void
+texture_threads (void)
+{
+  GdkSurface *surface;
+  GskRenderer *gl_renderer;
+  GskRenderNode *node;
+  GMainLoop *loop;
+  GdkTexture *texture;
+  GTask *task;
+
+  /* 1. Get a GL renderer */
+  surface = gdk_surface_new_toplevel (gdk_display_get_default());
+  gl_renderer = gsk_ngl_renderer_new ();
+  g_assert_true (gsk_renderer_realize (gl_renderer, surface, NULL));
+
+  /* 2. Get a GL texture */
+  node = gsk_color_node_new (&(GdkRGBA) { 1, 0, 0, 1 }, &GRAPHENE_RECT_INIT(0, 0, 1, 1));
+  texture = gsk_renderer_render_texture (gl_renderer, node, &GRAPHENE_RECT_INIT(0, 0, 1, 1));
+  gsk_render_node_unref (node);
+
+  /* 3. This is a bit fishy, but we want to make sure that
+   * the texture's GL context is current in the main thread.
+   *
+   * If we had access to the context, we'd make_current() here.
+   */
+  ensure_texture_access (texture);
+  g_assert_nonnull (gdk_gl_context_get_current ());
+
+  /* 4. Run a thread trying to download the texture */
+  loop = g_main_loop_new (NULL, TRUE);
+  task = g_task_new (texture, NULL, texture_download_done, loop);
+  g_task_run_in_thread (task, texture_download_thread);
+  g_clear_object (&task);
+
+  /* 5. Run the main loop waiting for the thread to return */
+  g_main_loop_run (loop);
+
+  /* 6. All good */
+  gsk_renderer_unrealize (gl_renderer);
+  g_clear_pointer (&loop, g_main_loop_unref);
+  g_clear_object (&gl_renderer);
+  g_clear_object (&surface);
+}
+
+int
+main (int argc, char *argv[])
+{
+  gtk_test_init (&argc, &argv, NULL);
+
+  g_test_add_func ("/texture-threads", texture_threads);
+
+  return g_test_run ();
+}

testsuite/gsk/half-float.c

@@ -32,6 +32,23 @@ test_constants (void)
     }
 }
 
+static float
+random_representable_float (void)
+{
+  guint16 h[4];
+  float f[4];
+  do
+    {
+      /* generate a random float thats representable as fp16 */
+      memset (h, 0, sizeof (h));
+      h[0] = g_random_int_range (G_MININT16, G_MAXINT16);
+      half_to_float4 (h, f);
+    }
+  while (!isnormal (f[0])); /* skip nans and infs since they don't compare well */
+
+  return f[0];
+}
+
 static void
 test_roundtrip (void)
 {
@@ -41,15 +58,7 @@ test_roundtrip (void)
       float f2[4];
       guint16 h[4];
 
-      do
-        {
-          /* generate a random float thats representable as fp16 */
-          memset (h, 0, sizeof (h));
-          h[0] = g_random_int_range (G_MININT16, G_MAXINT16);
-          half_to_float4 (h, f2);
-        }
-      while (!isnormal (f2[0])); /* skip nans and infs since they don't compare well */
-
+      f2[0] = random_representable_float ();
       memset (f, 0, sizeof (f));
       f[0] = f2[0];
 
@@ -60,6 +69,32 @@ test_roundtrip (void)
     }
 }
 
+/* Test that the array version work as expected,
+ * in particular with unaligned boundaries.
+ */
+static void
+test_many (void)
+{
+  for (int i = 0; i < 100; i++)
+    {
+      int size = g_random_int_range (100, 200);
+      int offset = g_random_int_range (0, 20);
+
+      guint16 *h = g_new0 (guint16, size);
+      float *f = g_new0 (float, size);
+      float *f2 = g_new0 (float, size);
+
+      for (int j = offset; j < size; j++)
+        f[j] = random_representable_float ();
+
+      float_to_half (f + offset, h + offset, size - offset);
+      half_to_float (h + offset, f2 + offset, size - offset);
+
+      for (int j = offset; j < size; j++)
+        g_assert_cmpfloat (f[j], ==, f2[j]);
+    }
+}
+
 int
 main (int argc, char *argv[])
 {
@@ -67,6 +102,7 @@ main (int argc, char *argv[])
 
   g_test_add_func ("/half-float/constants", test_constants);
   g_test_add_func ("/half-float/roundtrip", test_roundtrip);
+  g_test_add_func ("/half-float/many", test_many);
 
   return g_test_run ();
 }

testsuite/gsk/nodeparser/empty-texture.ref.node

@@ -1,7 +1,6 @@
 texture {
   bounds: 0 0 50 50;
-  texture: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAABmJLR0QA/wD/AP+gvaeTAAAAKUlE\
-QVQYlWP8z3DmPwMaYGQwYUQXY0IXwAUGUCGGoxkYGBiweXAoeAYAz44F3e3U1xUAAAAASUVORK5C\
-YII=\
+  texture: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAAAXNSR0IArs4c6QAAAClJREFUGJVj\
+/M9w5j8DGmBkMGFEF2NCF8AFBlAhhqMZGBgYsHlwKHgGAM+OBd3t1NcVAAAAAElFTkSuQmCC\
 ");
 }

testsuite/gsk/nodeparser/widgetfactory.ref.node

@@ -39,129 +39,129 @@ transform {
           offset: 0.180392 0.203922 0.211765 0;
           child: texture {
             bounds: 1068.6 0 256 256;
-            texture: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAQAAAAEACAYAAABccqhmAAAABmJLR0QA/wD/AP+gvaeTAAAbAUlE\
-QVR4nO2deZRfRZXHP+nOvhBIMBDWDAFMwBDWyCDIDoNA2B13FBhAZQTEASIiAZ1RBBf0jA6KolFU\
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-/YDPAM+x5cAoypOxG/APsk8Ai8KbbBj67AR8A1hG7cFxoZp1yRlL9sHfCswKb7Jh6LEr8pq/lsaD\
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