gdk: speed up gray image drawing

gdk: speed up RGB32 drawing
gdk: speed up indexed dithering
2026-08-19 22:23:32 +02:00 · 2026-08-18 20:57:39 +02:00 · 2026-08-18 17:07:41 +02:00 · 2026-08-18 15:04:53 +02:00 · 2026-08-18 13:37:22 +02:00 · 2026-08-18 13:21:14 +02:00
65 changed files with 3905 additions and 521 deletions
--- a/configure.ac
+++ b/configure.ac
@ -117,6 +117,26 @@ AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE, "$GETTEXT_PACKAGE",

 AC_CANONICAL_HOST

+gdk_pixelops_i386=no
+
+case "$host_cpu" in
+  i?86)
+    gdk_pixelops_i386=yes
+    AC_DEFINE([HAVE_GDK_PIXELOPS_INIT], [1],
+              [Define if GDK pixel operations require runtime dispatch initialization])
+    ;;
+  x86_64)
+    AC_DEFINE([GDK_PIXELOPS_X86_64], [1],
+              [Define if x86-64 SSE2 pixel operations are available])
+    ;;
+esac
+
+AM_CONDITIONAL(GDK_PIXELOPS_I386,
+               test "$gdk_pixelops_i386" = yes)
+AM_CONDITIONAL(GDK_PIXELOPS_X86_64,
+               test "$host_cpu" = x86_64)
+
+
 MATH_LIB=-lm
 AC_MSG_CHECKING([for native Win32])
 LIB_EXE_MACHINE_FLAG=X86
@ -399,6 +419,11 @@ PKG_CHECK_MODULES(BASE_DEPENDENCIES,
   gdk-pixbuf-2.0 >= gdk_pixbuf_required_version dnl
   fribidi >= fribidi_required_version])

+PKG_CHECK_EXISTS([atk >= 2.12],
+  [AC_DEFINE([HAVE_ATK_VALUE_2_12], [1],
+             [Define if ATK provides the 2.12 AtkValue interface])])
+
+
 ## In addition to checking that cairo is present, we also need to
 ## check that the correct cairo backend is there. E.g. if the GDK
 ## target is win32 we need the cairo-win32 backend and so on.
@ -469,7 +494,7 @@ if test "x$enable_rebuilds" = "xyes" && \
 fi
 AC_SUBST(REBUILD)

-AC_CHECK_FUNCS(lstat mkstemp flockfile getc_unlocked)
+AC_CHECK_FUNCS(lstat mkstemp flockfile getc_unlocked _getc_nolock)
 AC_CHECK_FUNCS(localtime_r)

 # _NL_TIME_FIRST_WEEKDAY is an enum and not a define
@ -1594,6 +1619,7 @@ else
    gtk_save_libs="$LIBS"
    LIBS="$CUPS_LIBS"
    AC_CHECK_FUNCS(httpGetAuthString)
+    AC_CHECK_FUNCS(httpConnect2 httpReconnect2)
    LIBS="$gtk_save_libs"
  fi
 fi
--- a/docs/reference/gdk/Makefile.am
+++ b/docs/reference/gdk/Makefile.am
@ -37,7 +37,7 @@ IGNORE_HFILES=			\

 # Extra files to add when scanning (relative to $srcdir)
 EXTRA_HFILES=			\
-	../../../gdk/x11/gdkx.h
+	$(top_srcdir)/gdk/x11/gdkx.h

 # CFLAGS and LDFLAGS for compiling scan program. Only needed
 # if $(DOC_MODULE).types is non-empty.
--- a/docs/reference/gdk/gdk2-sections.txt
+++ b/docs/reference/gdk/gdk2-sections.txt
@ -335,6 +335,10 @@ gdk_draw_indexed_image
 gdk_draw_gray_image
 gdk_draw_rgb_32_image
 gdk_draw_rgb_32_image_dithalign
+gdk_draw_rgb_48_image
+gdk_draw_rgb_48_image_dithalign
+gdk_draw_rgbx_64_image
+gdk_draw_rgbx_64_image_dithalign
 GdkRgbDither

 <SUBSECTION>
--- a/gdk/Makefile.am
+++ b/gdk/Makefile.am
@ -14,6 +14,8 @@ DIST_SUBDIRS = win32 x11 quartz directfb tests

 CLEANFILES =

+noinst_LTLIBRARIES =
+
 EXTRA_DIST +=			\
 	keynames.txt		\
 	keyname-table.h		\
@ -115,9 +117,60 @@ gdk_built_private_headers =			\
 gdk_private_headers =   \
 	gdkinternals.h \
 	gdkintl.h \
+	gdkpixelops.h \
    gdkpoly-generic.h	\
 	gdkregion-generic.h

+gdk_pixelops_arch_sources =
+gdk_pixelops_arch_libs =
+
+if GDK_PIXELOPS_I386
+gdk_pixelops_arch_sources += gdkpixelops-x86.c
+
+noinst_LTLIBRARIES += libgdk-pixelops-x86-mmx.la
+gdk_pixelops_arch_libs += libgdk-pixelops-x86-mmx.la
+
+libgdk_pixelops_x86_mmx_la_SOURCES = gdkpixelops-x86-mmx.c
+libgdk_pixelops_x86_mmx_la_CFLAGS = \
+        $(AM_CFLAGS) \
+        -mmmx -mno-sse -mno-sse2 -mno-3dnow
+
+noinst_LTLIBRARIES += libgdk-pixelops-x86-sse.la
+gdk_pixelops_arch_libs += libgdk-pixelops-x86-sse.la
+
+libgdk_pixelops_x86_sse_la_SOURCES = gdkpixelops-x86-mmx.c
+libgdk_pixelops_x86_sse_la_CFLAGS = \
+        $(AM_CFLAGS) \
+        -mmmx -mno-sse -mno-sse2 -mno-3dnow \
+        -DGDK_PIXELOPS_X86_SSE_IMPL
+
+noinst_LTLIBRARIES += libgdk-pixelops-x86-sse2.la
+gdk_pixelops_arch_libs += libgdk-pixelops-x86-sse2.la
+
+libgdk_pixelops_x86_sse2_la_SOURCES = gdkpixelops-x86-sse2.c
+libgdk_pixelops_x86_sse2_la_CFLAGS = \
+        $(AM_CFLAGS) \
+        -march=i686 -msse2 -mno-sse3 -mno-ssse3 \
+        -mno-sse4 -mno-avx -mno-3dnow -mtune=pentium4
+
+noinst_LTLIBRARIES += libgdk-pixelops-x86-3dnow.la
+gdk_pixelops_arch_libs += libgdk-pixelops-x86-3dnow.la
+
+libgdk_pixelops_x86_3dnow_la_SOURCES = gdkpixelops-x86-mmx.c
+libgdk_pixelops_x86_3dnow_la_CFLAGS = \
+        $(AM_CFLAGS) \
+        -mmmx -m3dnow -mno-sse -mno-sse2 \
+        -DGDK_PIXELOPS_X86_3DNOW_IMPL
+endif
+
+if GDK_PIXELOPS_X86_64
+gdk_pixelops_arch_sources += gdkpixelops-x86-sse2.c
+endif
+
+gdk_pixelops_private_sources = \
+        gdkpixelops-generic.c \
+        $(gdk_pixelops_arch_sources)
+
 gdk_c_sources =                 \
 	$(medialib_sources)     \
 	gdk.c			\
@ -129,6 +182,8 @@ gdk_c_sources =                 \
 	gdkdisplaymanager.c	\
 	gdkdnd.c		\
 	gdkdraw.c		\
+	gdkpixelops.c		\
+	$(gdk_pixelops_private_sources) \
 	gdkevents.c     	\
 	gdkfont.c		\
 	gdkgc.c			\
@ -174,19 +229,19 @@ common_sources =                \
 	gdkmarshalers.h

 libgdk_directfb_2_0_la_SOURCES = $(common_sources)
-libgdk_directfb_2_0_la_LIBADD = directfb/libgdk-directfb.la $(GDK_DEP_LIBS)
+libgdk_directfb_2_0_la_LIBADD = directfb/libgdk-directfb.la $(gdk_pixelops_arch_libs) $(GDK_DEP_LIBS)
 libgdk_directfb_2_0_la_LDFLAGS = $(LDADD)

 libgdk_x11_2_0_la_SOURCES = $(common_sources)
-libgdk_x11_2_0_la_LIBADD = x11/libgdk-x11.la $(GDK_DEP_LIBS)
+libgdk_x11_2_0_la_LIBADD = x11/libgdk-x11.la $(gdk_pixelops_arch_libs) $(GDK_DEP_LIBS)
 libgdk_x11_2_0_la_LDFLAGS = $(LDADD)

 libgdk_quartz_2_0_la_SOURCES = $(common_sources) gdkkeynames.c
-libgdk_quartz_2_0_la_LIBADD = quartz/libgdk-quartz.la $(GDK_DEP_LIBS)
+libgdk_quartz_2_0_la_LIBADD = quartz/libgdk-quartz.la $(gdk_pixelops_arch_libs) $(GDK_DEP_LIBS)
 libgdk_quartz_2_0_la_LDFLAGS = $(LDADD)

 libgdk_win32_2_0_la_SOURCES = $(common_sources) gdkkeynames.c
-libgdk_win32_2_0_la_LIBADD = win32/libgdk-win32.la $(GDK_DEP_LIBS)
+libgdk_win32_2_0_la_LIBADD = win32/libgdk-win32.la $(gdk_pixelops_arch_libs) $(GDK_DEP_LIBS)
 libgdk_win32_2_0_la_DEPENDENCIES = win32/libgdk-win32.la win32/rc/gdk-win32-res.o gdk.def
 libgdk_win32_2_0_la_LDFLAGS = -Wl,win32/rc/gdk-win32-res.o -export-symbols $(srcdir)/gdk.def $(LDADD)

@ -194,7 +249,7 @@ if HAVE_INTROSPECTION

 base_introspection_files = 		\
 	$(filter-out gdkkeysyms-compat.h, $(gdk_public_h_sources))	\
-	$(gdk_c_sources)	\
+	$(filter-out $(gdk_pixelops_private_sources), $(gdk_c_sources)) \
 	gdkkeynames.c		\
        gdkenumtypes.c		\
        gdkenumtypes.h
@ -213,6 +268,11 @@ Gdk_2_0_gir_CFLAGS = \
 	-I$(top_builddir)	\
 	-I$(top_builddir)/gdk	\
 	$(INCLUDES)
+
+if OS_WIN32
+Gdk_2_0_gir_CFLAGS += -I$(srcdir)/win32 -I$(srcdir)
+endif
+
 INTROSPECTION_GIRS += Gdk-2.0.gir

 if USE_X11
@ -268,6 +328,69 @@ introspection_files += $(filter-out x11/gdkx.h, $(x11_introspection_files))

 endif # USE_X11

+if OS_WIN32
+win32_introspection_files = \
+	win32/gdkapplaunchcontext-win32.c \
+	win32/gdkcolor-win32.c \
+	win32/gdkcursor-win32.c \
+	win32/gdkdisplay-win32.c \
+	win32/gdkdnd-win32.c \
+	win32/gdkdrawable-win32.c \
+	win32/gdkdrawable-win32.h \
+	win32/gdkevents-win32.c \
+	win32/gdkfont-win32.c \
+	win32/gdkgc-win32.c \
+	win32/gdkgeometry-win32.c \
+	win32/gdkglobals-win32.c \
+	win32/gdkimage-win32.c \
+	win32/gdkim-win32.c \
+	win32/gdkinput.c \
+	win32/gdkinput-win32.c \
+	win32/gdkinput-win32.h \
+	win32/gdkkeys-win32.c \
+	win32/gdkmain-win32.c \
+	win32/gdkpixmap-win32.c \
+	win32/gdkpixmap-win32.h \
+	win32/gdkprivate-win32.h \
+	win32/gdkproperty-win32.c \
+	win32/gdkscreen-win32.c \
+	win32/gdkselection-win32.c \
+	win32/gdkspawn-win32.c \
+	win32/gdktestutils-win32.c \
+	win32/gdkvisual-win32.c \
+	win32/gdkwin32.h \
+	win32/gdkwin32id.c \
+	win32/gdkwin32keys.h \
+	win32/gdkwindow-win32.c \
+	win32/gdkwindow-win32.h
+
+GdkWin32-2.0.gir: $(gdktargetlib) Gdk-2.0.gir Makefile
+GdkWin32_2_0_gir_SCANNERFLAGS = --identifier-prefix=Gdk --symbol-prefix=gdk --include-uninstalled=Gdk-2.0.gir
+GdkWin32_2_0_gir_INCLUDES = Gio-2.0 GdkPixbuf-2.0 Pango-1.0
+GdkWin32_2_0_gir_LIBS = $(gdktargetlib)
+GdkWin32_2_0_gir_FILES = $(filter-out \
+    win32/gdkdrawable-win32.h \
+    win32/gdkinput-win32.h \
+    win32/gdkpixmap-win32.h \
+    win32/gdkprivate-win32.h \
+    win32/gdkwindow-win32.h, \
+    $(win32_introspection_files))
+GdkWin32_2_0_gir_EXPORT_PACKAGES = gdk-win32-2.0
+GdkWin32_2_0_gir_CFLAGS = \
+	-DGDK_COMPILATION \
+	-I$(top_srcdir) \
+	-I$(top_builddir) \
+	-I$(top_builddir)/gdk \
+	-I$(srcdir)/win32 \
+	-I$(srcdir) \
+	$(INCLUDES) \
+	-L$(top_builddir)/gdk
+INTROSPECTION_GIRS += GdkWin32-2.0.gir
+
+introspection_files += $(filter-out win32/gdkwin32.h, $(win32_introspection_files))
+
+endif # OS_WIN32
+
 girdir = $(datadir)/gir-1.0
 gir_DATA = $(INTROSPECTION_GIRS)

--- a/gdk/gdk.c
+++ b/gdk/gdk.c
@ -32,6 +32,7 @@
 #include "gdk.h"
 #include "gdkinternals.h"
 #include "gdkintl.h"
+#include "gdkpixelops.h"

 #ifndef HAVE_XCONVERTCASE
 #include "gdkkeysyms.h"
@ -189,6 +190,8 @@ gdk_pre_parse_libgtk_only (void)
 {
  gdk_initialized = TRUE;

+  _gdk_pixel_ops_init ();
+
  /* We set the fallback program class here, rather than lazily in
   * gdk_get_program_class, since we don't want -name to override it.
   */
--- a/gdk/gdk.symbols
+++ b/gdk/gdk.symbols
@ -1118,6 +1118,15 @@ gdk_draw_rgb_image_dithalign
 #endif
 #endif

+#if IN_HEADER(__GDK_RGB_H__)
+#if IN_FILE(__GDK_RGB_C__)
+gdk_draw_rgb_48_image
+gdk_draw_rgb_48_image_dithalign
+gdk_draw_rgbx_64_image
+gdk_draw_rgbx_64_image_dithalign
+#endif
+#endif
+
 #if IN_HEADER(__GDK_SCREEN_H__)
 #if IN_FILE(__GDK_SCREEN_C__)
 gdk_screen_get_type G_GNUC_CONST
--- a/gdk/gdkdraw.c
+++ b/gdk/gdkdraw.c
@ -25,6 +25,7 @@
 */

 #include "config.h"
+#include <string.h>
 #include <math.h>
 #include <pango/pangocairo.h>
 #include <gdk-pixbuf/gdk-pixbuf.h>
@ -34,6 +35,7 @@
 #include "gdkwindow.h"
 #include "gdkscreen.h"
 #include "gdkpixbuf.h"
+#include "gdkpixelops.h"
 #include "gdkalias.h"

 static GdkImage*    gdk_drawable_real_get_image (GdkDrawable     *drawable,
@ -1403,62 +1405,6 @@ composite (guchar *src_buf,
    }
 }

-static void
-composite_0888 (guchar      *src_buf,
-		gint         src_rowstride,
-		guchar      *dest_buf,
-		gint         dest_rowstride,
-		GdkByteOrder dest_byte_order,
-		gint         width,
-		gint         height)
-{
-  guchar *src = src_buf;
-  guchar *dest = dest_buf;
-
-  while (height--)
-    {
-      gint twidth = width;
-      guchar *p = src;
-      guchar *q = dest;
-
-      if (dest_byte_order == GDK_LSB_FIRST)
-	{
-	  while (twidth--)
-	    {
-	      guint t;
-
-	      t = p[3] * p[2] + (255 - p[3]) * q[0] + 0x80;
-	      q[0] = (t + (t >> 8)) >> 8;
-	      t = p[3] * p[1] + (255 - p[3]) * q[1] + 0x80;
-	      q[1] = (t + (t >> 8)) >> 8;
-	      t = p[3] * p[0] + (255 - p[3]) * q[2] + 0x80;
-	      q[2] = (t + (t >> 8)) >> 8;
-	      p += 4;
-	      q += 4;
-	    }
-	}
-      else
-	{
-	  while (twidth--)
-	    {
-	      guint t;
-
-	      t = p[3] * p[0] + (255 - p[3]) * q[1] + 0x80;
-	      q[1] = (t + (t >> 8)) >> 8;
-	      t = p[3] * p[1] + (255 - p[3]) * q[2] + 0x80;
-	      q[2] = (t + (t >> 8)) >> 8;
-	      t = p[3] * p[2] + (255 - p[3]) * q[3] + 0x80;
-	      q[3] = (t + (t >> 8)) >> 8;
-	      p += 4;
-	      q += 4;
-	    }
-	}
-
-      src += src_rowstride;
-      dest += dest_rowstride;
-    }
-}
-
 #ifdef USE_MEDIALIB
 static void
 composite_0888_medialib (guchar      *src_buf,
@ -1497,82 +1443,6 @@ composite_0888_medialib (guchar      *src_buf,
 }
 #endif

-static void
-composite_565 (guchar      *src_buf,
-	       gint         src_rowstride,
-	       guchar      *dest_buf,
-	       gint         dest_rowstride,
-	       GdkByteOrder dest_byte_order,
-	       gint         width,
-	       gint         height)
-{
-  guchar *src = src_buf;
-  guchar *dest = dest_buf;
-
-  while (height--)
-    {
-      gint twidth = width;
-      guchar *p = src;
-      gushort *q = (gushort *)dest;
-
-      while (twidth--)
-	{
-	  guchar a = p[3];
-	  guint tr, tg, tb;
-	  guint tr1, tg1, tb1;
-	  guint tmp = *q;
-
-#if 1
-	  /* This is fast, and corresponds to what composite() above does
-	   * if we converted to 8-bit first.
-	   */
-	  tr = (tmp & 0xf800);
-	  tr1 = a * p[0] + (255 - a) * ((tr >> 8) + (tr >> 13)) + 0x80;
-	  tg = (tmp & 0x07e0);
-	  tg1 = a * p[1] + (255 - a) * ((tg >> 3) + (tg >> 9)) + 0x80;
-	  tb = (tmp & 0x001f);
-	  tb1 = a * p[2] + (255 - a) * ((tb << 3) + (tb >> 2)) + 0x80;
-
-	  *q = (((tr1 + (tr1 >> 8)) & 0xf800) |
-		(((tg1 + (tg1 >> 8)) & 0xfc00) >> 5)  |
-		((tb1 + (tb1 >> 8)) >> 11));
-#else
-	  /* This version correspond to the result we get with XRENDER -
-	   * a bit of precision is lost since we convert to 8 bit after premultiplying
-	   * instead of at the end
-	   */
-	  guint tr2, tg2, tb2;
-	  guint tr3, tg3, tb3;
-
-	  tr = (tmp & 0xf800);
-	  tr1 = (255 - a) * ((tr >> 8) + (tr >> 13)) + 0x80;
-	  tr2 = a * p[0] + 0x80;
-	  tr3 = ((tr1 + (tr1 >> 8)) >> 8) + ((tr2 + (tr2 >> 8)) >> 8);
-
-	  tg = (tmp & 0x07e0);
-	  tg1 = (255 - a) * ((tg >> 3) + (tg >> 9)) + 0x80;
-	  tg2 = a * p[0] + 0x80;
-	  tg3 = ((tg1 + (tg1 >> 8)) >> 8) + ((tg2 + (tg2 >> 8)) >> 8);
-
-	  tb = (tmp & 0x001f);
-	  tb1 = (255 - a) * ((tb << 3) + (tb >> 2)) + 0x80;
-	  tb2 = a * p[0] + 0x80;
-	  tb3 = ((tb1 + (tb1 >> 8)) >> 8) + ((tb2 + (tb2 >> 8)) >> 8);
-
-	  *q = (((tr3 & 0xf8) << 8) |
-		((tg3 & 0xfc) << 3) |
-		((tb3 >> 3)));
-#endif
-
-	  p += 4;
-	  q++;
-	}
-
-      src += src_rowstride;
-      dest += dest_rowstride;
-    }
-}
-
 /* Implementation of the old vfunc in terms of the new one
   in case someone calls it directly (which they shouldn't!) */
 static void
@ -1598,6 +1468,114 @@ gdk_drawable_real_draw_drawable (GdkDrawable  *drawable,
 							     src);
 }

+#ifdef GDK_WINDOWING_X11
+static inline guint
+composite_101010_channel (guint src,
+                          guint alpha,
+                          guint dest)
+{
+  guint sa;
+  guint da;
+  guint numerator;
+  guint q;
+  guint threshold;
+
+  sa = src * alpha;
+  da = dest * (255U - alpha);
+
+  numerator =
+    (sa << 10) - sa +
+    (da << 8) - da;
+
+  q = numerator / 64961U;
+
+  threshold =
+    q * 64961U +
+    ((q * 511U + 1023U) >> 10);
+
+  q -= numerator < threshold;
+
+  /*
+   * numerator <= 66520575, therefore q is at most 1024.
+   * Map only that endpoint to 1023 without a branch.
+   */
+  q -= q >> 10;
+
+  return q;
+}
+
+static void
+composite_101010_exact (guchar       *src_buf,
+                        gint          src_rowstride,
+                        guchar       *dest_buf,
+                        gint          dest_rowstride,
+                        GdkByteOrder  dest_byte_order,
+                        gint          width,
+                        gint          height)
+{
+  guchar *src;
+  guchar *dest;
+
+  (void) dest_byte_order;
+
+  src = src_buf;
+  dest = dest_buf;
+
+  while (height--)
+    {
+      const guchar *p;
+      guchar *q;
+      gint x;
+
+      p = src;
+      q = dest;
+
+      for (x = 0; x < width; x++)
+        {
+          guint32 pixel;
+          guint alpha;
+          guint r;
+          guint g;
+          guint b;
+
+          memcpy (&pixel, q, sizeof pixel);
+
+          alpha = p[3];
+
+          r = composite_101010_channel (
+            p[0],
+            alpha,
+            (pixel >> 20) & 0x3ffU);
+
+          g = composite_101010_channel (
+            p[1],
+            alpha,
+            (pixel >> 10) & 0x3ffU);
+
+          b = composite_101010_channel (
+            p[2],
+            alpha,
+            pixel & 0x3ffU);
+
+          pixel =
+            (pixel & 0xc0000000U) |
+            (r << 20) |
+            (g << 10) |
+            b;
+
+          memcpy (q, &pixel, sizeof pixel);
+
+          p += 4;
+          q += 4;
+        }
+
+      src += src_rowstride;
+      dest += dest_rowstride;
+    }
+}
+
+#endif /* GDK_WINDOWING_X11 */
+
 static void
 gdk_drawable_real_draw_pixbuf (GdkDrawable  *drawable,
 			       GdkGC        *gc,
@ -1728,7 +1706,25 @@ gdk_drawable_real_draw_pixbuf (GdkDrawable  *drawable,
 	      visual->red_mask   == 0xf800 &&
 	      visual->green_mask == 0x07e0 &&
 	      visual->blue_mask  == 0x001f)
-	    composite_func = composite_565;
+	    {
+	      composite_func = _gdk_pixel_ops.composite_565;
+	      goto composite_selected;
+	    }
+#ifdef GDK_WINDOWING_X11
+	  else if (visual->type == GDK_VISUAL_TRUE_COLOR &&
+	           visual->byte_order ==
+	             (G_BYTE_ORDER == G_BIG_ENDIAN ?
+	              GDK_MSB_FIRST : GDK_LSB_FIRST) &&
+	           visual->depth == 30 &&
+	           bits_per_pixel == 32 &&
+	           visual->red_mask   == 0x3ff00000 &&
+	           visual->green_mask == 0x000ffc00 &&
+	           visual->blue_mask  == 0x000003ff)
+	    {
+	      composite_func = composite_101010_exact;
+	      goto composite_selected;
+	    }
+#endif /* GDK_WINDOWING_X11 */
 	  else if (visual->depth == 24 && bits_per_pixel == 32 &&
 		   visual->red_mask   == 0xff0000 &&
 		   visual->green_mask == 0x00ff00 &&
@ -1738,16 +1734,20 @@ gdk_drawable_real_draw_pixbuf (GdkDrawable  *drawable,
 	      if (_gdk_use_medialib ())
 	        composite_func = composite_0888_medialib;
 	      else
-	        composite_func = composite_0888;
+	        composite_func = _gdk_pixel_ops.composite_0888;
 #else
-	      composite_func = composite_0888;
+	      composite_func = _gdk_pixel_ops.composite_0888;
 #endif
+	      goto composite_selected;
 	    }
 	}
+	goto no_composite;

      /* We can't use our composite func if we are required to dither
       */
-      if (composite_func && !(dither == GDK_RGB_DITHER_MAX && visual->depth != 24))
+
+composite_selected:
+      if (!(dither == GDK_RGB_DITHER_MAX && visual->depth != 24))
 	{
 	  gint x0, y0;
 	  for (y0 = 0; y0 < height; y0 += GDK_SCRATCH_IMAGE_HEIGHT)
@ -1782,7 +1782,7 @@ gdk_drawable_real_draw_pixbuf (GdkDrawable  *drawable,

 	  goto out;
 	}
-      else
+no_composite:
 	{
 	  /* No special composition func, convert dest to 24 bit RGB data, composite against
 	   * that, and convert back.
--- a/gdk/gdkpixelops-generic.c
+++ b/gdk/gdkpixelops-generic.c
@ -0,0 +1,149 @@
+/* GDK - The GIMP Drawing Kit
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ *
+ * 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.
+ */
+
+#include "config.h"
+
+#include "gdkpixelops.h"
+
+G_GNUC_INTERNAL void
+_gdk_pixel_ops_composite_0888_generic (guchar       *src_buf,
+                gint          src_rowstride,
+                guchar       *dest_buf,
+                gint          dest_rowstride,
+                GdkByteOrder  dest_byte_order,
+                gint          width,
+                gint          height)
+{
+  guchar *src = src_buf;
+  guchar *dest = dest_buf;
+
+  while (height--)
+    {
+      gint twidth = width;
+      guchar *p = src;
+      guchar *q = dest;
+
+      if (dest_byte_order == GDK_LSB_FIRST)
+        {
+          while (twidth--)
+            {
+              guint t;
+
+              t = p[3] * p[2] + (255 - p[3]) * q[0] + 0x80;
+              q[0] = (t + (t >> 8)) >> 8;
+              t = p[3] * p[1] + (255 - p[3]) * q[1] + 0x80;
+              q[1] = (t + (t >> 8)) >> 8;
+              t = p[3] * p[0] + (255 - p[3]) * q[2] + 0x80;
+              q[2] = (t + (t >> 8)) >> 8;
+              p += 4;
+              q += 4;
+            }
+        }
+      else
+        {
+          while (twidth--)
+            {
+              guint t;
+
+              t = p[3] * p[0] + (255 - p[3]) * q[1] + 0x80;
+              q[1] = (t + (t >> 8)) >> 8;
+              t = p[3] * p[1] + (255 - p[3]) * q[2] + 0x80;
+              q[2] = (t + (t >> 8)) >> 8;
+              t = p[3] * p[2] + (255 - p[3]) * q[3] + 0x80;
+              q[3] = (t + (t >> 8)) >> 8;
+              p += 4;
+              q += 4;
+            }
+        }
+
+      src += src_rowstride;
+      dest += dest_rowstride;
+    }
+}
+
+G_GNUC_INTERNAL void
+_gdk_pixel_ops_composite_565_generic (guchar       *src_buf,
+               gint          src_rowstride,
+               guchar       *dest_buf,
+               gint          dest_rowstride,
+               GdkByteOrder  dest_byte_order,
+               gint          width,
+               gint          height)
+{
+  guchar *src = src_buf;
+  guchar *dest = dest_buf;
+
+  while (height--)
+    {
+      gint twidth = width;
+      guchar *p = src;
+      gushort *q = (gushort *)dest;
+
+      while (twidth--)
+        {
+          guchar a = p[3];
+          guint tr, tg, tb;
+          guint tr1, tg1, tb1;
+          guint tmp = *q;
+
+#if 1
+          /* This is fast, and corresponds to what composite() above does
+           * if we converted to 8-bit first.
+           */
+          tr = (tmp & 0xf800);
+          tr1 = a * p[0] + (255 - a) * ((tr >> 8) + (tr >> 13)) + 0x80;
+          tg = (tmp & 0x07e0);
+          tg1 = a * p[1] + (255 - a) * ((tg >> 3) + (tg >> 9)) + 0x80;
+          tb = (tmp & 0x001f);
+          tb1 = a * p[2] + (255 - a) * ((tb << 3) + (tb >> 2)) + 0x80;
+
+          *q = (((tr1 + (tr1 >> 8)) & 0xf800) |
+                (((tg1 + (tg1 >> 8)) & 0xfc00) >> 5) |
+                ((tb1 + (tb1 >> 8)) >> 11));
+#else
+          /* This version correspond to the result we get with XRENDER -
+           * a bit of precision is lost since we convert to 8 bit after premultiplying
+           * instead of at the end
+           */
+          guint tr2, tg2, tb2;
+          guint tr3, tg3, tb3;
+
+          tr = (tmp & 0xf800);
+          tr1 = (255 - a) * ((tr >> 8) + (tr >> 13)) + 0x80;
+          tr2 = a * p[0] + 0x80;
+          tr3 = ((tr1 + (tr1 >> 8)) >> 8) + ((tr2 + (tr2 >> 8)) >> 8);
+
+          tg = (tmp & 0x07e0);
+          tg1 = (255 - a) * ((tg >> 3) + (tg >> 9)) + 0x80;
+          tg2 = a * p[0] + 0x80;
+          tg3 = ((tg1 + (tg1 >> 8)) >> 8) + ((tg2 + (tg2 >> 8)) >> 8);
+
+          tb = (tmp & 0x001f);
+          tb1 = (255 - a) * ((tb << 3) + (tb >> 2)) + 0x80;
+          tb2 = a * p[0] + 0x80;
+          tb3 = ((tb1 + (tb1 >> 8)) >> 8) + ((tb2 + (tb2 >> 8)) >> 8);
+
+          *q = (((tr3 & 0xf8) << 8) |
+                ((tg3 & 0xfc) << 3) |
+                ((tb3 >> 3)));
+#endif
+
+          p += 4;
+          q++;
+        }
+
+      src += src_rowstride;
+      dest += dest_rowstride;
+    }
+}
--- a/gdk/gdkpixelops-x86-mmx.c
+++ b/gdk/gdkpixelops-x86-mmx.c
@ -0,0 +1,347 @@
+/* GDK - The GIMP Drawing Kit
+ *
+ * MMX pixel operations for 32-bit x86.
+ */
+
+#include "config.h"
+
+#include <string.h>
+#include <mmintrin.h>
+
+#ifdef GDK_PIXELOPS_X86_3DNOW_IMPL
+#include <mm3dnow.h>
+#define GDK_PIXELOPS_COMPOSITE_0888 _gdk_pixel_ops_composite_0888_3dnow
+#define GDK_PIXELOPS_COMPOSITE_565 _gdk_pixel_ops_composite_565_3dnow
+#define GDK_PIXELOPS_MMX_EMPTY() _m_femms ()
+#elif defined(GDK_PIXELOPS_X86_SSE_IMPL)
+#define GDK_PIXELOPS_COMPOSITE_0888 _gdk_pixel_ops_composite_0888_sse
+#define GDK_PIXELOPS_COMPOSITE_565 _gdk_pixel_ops_composite_565_sse
+#define GDK_PIXELOPS_MMX_EMPTY() _mm_empty ()
+#else
+#define GDK_PIXELOPS_COMPOSITE_0888 _gdk_pixel_ops_composite_0888_mmx
+#define GDK_PIXELOPS_COMPOSITE_565 _gdk_pixel_ops_composite_565_mmx
+#define GDK_PIXELOPS_MMX_EMPTY() _mm_empty ()
+#endif
+
+#include "gdkpixelops.h"
+
+#ifndef __i386__
+#error "gdkpixelops-x86-mmx.c requires a 32-bit x86 target"
+#endif
+
+G_GNUC_INTERNAL void
+_gdk_pixel_ops_composite_0888_generic (guchar       *src_buf,
+                                       gint          src_rowstride,
+                                       guchar       *dest_buf,
+                                       gint          dest_rowstride,
+                                       GdkByteOrder  dest_byte_order,
+                                       gint          width,
+                                       gint          height);
+
+#ifdef GDK_PIXELOPS_X86_3DNOW_IMPL
+static __inline__ __m64
+blend_3dnow (__m64 s,
+             __m64 d,
+             __m64 a)
+{
+  __m64 scaled;
+  __m64 mask;
+  __m64 coeff;
+  __m64 delta;
+  __m64 correction;
+  __m64 t;
+
+  scaled = _mm_slli_pi16 (a, 8);
+  mask = _mm_srai_pi16 (scaled, 15);
+
+  coeff = _mm_add_pi16 (a, scaled);
+  coeff = _mm_sub_pi16 (coeff, mask);
+
+  delta = _mm_sub_pi16 (s, d);
+  correction = _mm_and_si64 (delta, mask);
+
+  t = _m_pmulhrw (delta, coeff);
+  t = _mm_add_pi16 (t, correction);
+
+  return _mm_add_pi16 (t, d);
+}
+#endif
+
+G_GNUC_INTERNAL void
+GDK_PIXELOPS_COMPOSITE_0888 (guchar       *src_buf,
+                                   gint          src_rowstride,
+                                   guchar       *dest_buf,
+                                   gint          dest_rowstride,
+                                   GdkByteOrder  dest_byte_order,
+                                   gint          width,
+                                   gint          height)
+{
+  if (dest_byte_order != GDK_LSB_FIRST)
+    {
+      _gdk_pixel_ops_composite_0888_generic (src_buf,
+                                             src_rowstride,
+                                             dest_buf,
+                                             dest_rowstride,
+                                             dest_byte_order,
+                                             width,
+                                             height);
+      return;
+    }
+
+  {
+    const __m64 zero = _mm_setzero_si64 ();
+    const __m64 ones = _mm_cmpeq_pi16 (zero, zero);
+#ifndef GDK_PIXELOPS_X86_3DNOW_IMPL
+    const __m64 ff = _mm_srli_pi16 (ones, 8);
+    const __m64 bias = _mm_set1_pi16 (0x80);
+#endif
+    const __m64 rgb_mask = _mm_srli_si64 (ones, 16);
+    guchar *src = src_buf;
+    guchar *dest = dest_buf;
+
+    while (height--)
+      {
+        gint twidth = width;
+        guchar *p = src;
+        guchar *q = dest;
+
+        while (twidth--)
+          {
+            guint32 sp;
+            guint32 dp;
+            guint32 result;
+            __m64 s;
+            __m64 d;
+            __m64 a;
+#ifndef GDK_PIXELOPS_X86_3DNOW_IMPL
+            __m64 ia;
+#endif
+            __m64 t;
+            __m64 packed;
+
+            memcpy (&sp, p, sizeof sp);
+            memcpy (&dp, q, sizeof dp);
+
+            sp = ((sp & 0xff00ff00U) |
+                  ((sp & 0x000000ffU) << 16) |
+                  ((sp & 0x00ff0000U) >> 16));
+
+            s = _mm_cvtsi32_si64 ((int) sp);
+            d = _mm_cvtsi32_si64 ((int) dp);
+
+            s = _mm_unpacklo_pi8 (s, zero);
+            d = _mm_unpacklo_pi8 (d, zero);
+
+            a = _mm_srli_si64 (s, 48);
+            #ifdef GDK_PIXELOPS_X86_SSE_IMPL
+            __asm__ ("pshufw $0x00,%0,%0"
+                     : "+y" (a));
+            #else
+            a = _mm_unpacklo_pi16 (a, a);
+            a = _mm_unpacklo_pi32 (a, a);
+            #endif
+            a = _mm_and_si64 (a, rgb_mask);
+
+#ifdef GDK_PIXELOPS_X86_3DNOW_IMPL
+            t = blend_3dnow (s, d, a);
+#else
+            ia = _mm_sub_pi16 (ff, a);
+
+            t = _mm_add_pi16 (_mm_mullo_pi16 (s, a),
+                              _mm_mullo_pi16 (d, ia));
+
+            t = _mm_add_pi16 (t, bias);
+            #ifdef GDK_PIXELOPS_X86_SSE_IMPL
+            {
+              __m64 scale = _mm_set1_pi16 (0x0101);
+
+              __asm__ ("pmulhuw %1,%0"
+                       : "+y" (t)
+                       : "y" (scale));
+            }
+            #else
+            t = _mm_add_pi16 (t, _mm_srli_pi16 (t, 8));
+            t = _mm_srli_pi16 (t, 8);
+            #endif
+#endif
+
+            packed = _mm_packs_pu16 (t, t);
+            result = (guint32) _mm_cvtsi64_si32 (packed);
+
+            memcpy (q, &result, sizeof result);
+
+            p += 4;
+            q += 4;
+          }
+
+        src += src_rowstride;
+        dest += dest_rowstride;
+      }
+
+    GDK_PIXELOPS_MMX_EMPTY ();
+  }
+}
+
+static guint32
+expand_565 (guint16 value)
+{
+  guint32 hi;
+
+  hi = (((guint32) value & 0xf800U) >> 8) |
+       (((guint32) value & 0x07e0U) << 5) |
+       (((guint32) value & 0x001fU) << 19);
+
+  return hi |
+         ((hi >> 5) & 0x00070007U) |
+         ((hi >> 6) & 0x00000300U);
+}
+
+static guint16
+pack_565 (guint32 rgb)
+{
+  return (guint16)
+    (((rgb & 0x000000f8U) << 8) |
+     ((rgb & 0x0000fc00U) >> 5) |
+     ((rgb & 0x00f80000U) >> 19));
+}
+
+static guint32
+blend_565_mmx (__m64   zero,
+               __m64   ff,
+               __m64   bias,
+               guint32 src,
+               guint32 dest)
+{
+  __m64 s;
+  __m64 d;
+  __m64 a;
+#ifndef GDK_PIXELOPS_X86_3DNOW_IMPL
+  __m64 ia;
+#endif
+  __m64 t;
+  guint32 result;
+
+  s = _mm_cvtsi32_si64 ((int) src);
+  d = _mm_cvtsi32_si64 ((int) dest);
+
+  s = _mm_unpacklo_pi8 (s, zero);
+  d = _mm_unpacklo_pi8 (d, zero);
+
+  a = _mm_srli_si64 (s, 48);
+  #ifdef GDK_PIXELOPS_X86_SSE_IMPL
+  __asm__ ("pshufw $0x00,%0,%0"
+           : "+y" (a));
+  #else
+  a = _mm_unpacklo_pi16 (a, a);
+  a = _mm_unpacklo_pi32 (a, a);
+  #endif
+
+#ifdef GDK_PIXELOPS_X86_3DNOW_IMPL
+  t = blend_3dnow (s, d, a);
+#else
+  ia = _mm_sub_pi16 (ff, a);
+
+  t = _mm_add_pi16 (_mm_mullo_pi16 (s, a),
+                    _mm_mullo_pi16 (d, ia));
+
+  t = _mm_add_pi16 (t, bias);
+  #ifdef GDK_PIXELOPS_X86_SSE_IMPL
+  {
+    __m64 scale = _mm_set1_pi16 (0x0101);
+
+    __asm__ ("pmulhuw %1,%0"
+             : "+y" (t)
+             : "y" (scale));
+  }
+  #else
+  t = _mm_add_pi16 (t, _mm_srli_pi16 (t, 8));
+  t = _mm_srli_pi16 (t, 8);
+  #endif
+#endif
+  t = _mm_packs_pu16 (t, t);
+
+  __asm__ ("movd %1,%0"
+           : "=r" (result)
+           : "y" (t));
+
+  return result;
+}
+
+G_GNUC_INTERNAL void
+GDK_PIXELOPS_COMPOSITE_565 (guchar       *src_buf,
+                                  gint          src_rowstride,
+                                  guchar       *dest_buf,
+                                  gint          dest_rowstride,
+                                  GdkByteOrder  dest_byte_order,
+                                  gint          width,
+                                  gint          height)
+{
+  const __m64 zero = _mm_setzero_si64 ();
+  const __m64 ones = _mm_cmpeq_pi16 (zero, zero);
+  const __m64 ff = _mm_srli_pi16 (ones, 8);
+  const __m64 bias = _mm_set1_pi16 (0x80);
+  guchar *src = src_buf;
+  guchar *dest = dest_buf;
+
+  (void) dest_byte_order;
+
+  while (height--)
+    {
+      gint pairs = width >> 1;
+      guchar *p = src;
+      guchar *q = dest;
+
+      while (pairs--)
+        {
+          guint32 sp0;
+          guint32 sp1;
+          guint32 dpair;
+          guint32 dp0;
+          guint32 dp1;
+          guint32 rgb0;
+          guint32 rgb1;
+          guint32 result;
+
+          memcpy (&sp0, p, sizeof sp0);
+          memcpy (&sp1, p + 4, sizeof sp1);
+          memcpy (&dpair, q, sizeof dpair);
+
+          dp0 = expand_565 ((guint16) dpair);
+          dp1 = expand_565 ((guint16) (dpair >> 16));
+
+          rgb0 = blend_565_mmx (zero, ff, bias, sp0, dp0);
+          rgb1 = blend_565_mmx (zero, ff, bias, sp1, dp1);
+
+          result = (guint32) pack_565 (rgb0);
+          result |= (guint32) pack_565 (rgb1) << 16;
+
+          memcpy (q, &result, sizeof result);
+
+          p += 8;
+          q += 4;
+        }
+
+      if (width & 1)
+        {
+          guint32 sp;
+          guint16 dp16;
+          guint16 result;
+          guint32 dp;
+          guint32 rgb;
+
+          memcpy (&sp, p, sizeof sp);
+          memcpy (&dp16, q, sizeof dp16);
+
+          dp = expand_565 (dp16);
+          rgb = blend_565_mmx (zero, ff, bias, sp, dp);
+          result = pack_565 (rgb);
+
+          memcpy (q, &result, sizeof result);
+        }
+
+      src += src_rowstride;
+      dest += dest_rowstride;
+    }
+
+  GDK_PIXELOPS_MMX_EMPTY ();
+}
--- a/gdk/gdkpixelops-x86-sse2.c
+++ b/gdk/gdkpixelops-x86-sse2.c
@ -0,0 +1,337 @@
+/* GDK - The GIMP Drawing Kit
+ *
+ * SSE2 0888 pixel compositing for x86.
+ */
+
+#include "config.h"
+
+#include "gdkpixelops.h"
+
+#if !defined(__i386__) && !defined(__x86_64__)
+#error "gdkpixelops-x86-sse2.c requires an x86 target"
+#endif
+
+#if defined(__x86_64__) && !defined(__ILP32__)
+#define GDK_PIXELOPS_PTR_ADD "addq"
+#else
+#define GDK_PIXELOPS_PTR_ADD "addl"
+#endif
+
+/*
+ * Keep this declaration at default visibility. The definition remains
+ * internal in gdkpixelops-generic.c, allowing compact SSE2 code while
+ * the final shared object still binds the fallback internally.
+ */
+void
+_gdk_pixel_ops_composite_0888_generic (guchar       *src_buf,
+                                       gint          src_rowstride,
+                                       guchar       *dest_buf,
+                                       gint          dest_rowstride,
+                                       GdkByteOrder  dest_byte_order,
+                                       gint          width,
+                                       gint          height);
+
+static const unsigned short asm_rgb_mask[8]
+  __attribute__ ((aligned (16))) =
+{
+  0xffff, 0xffff, 0xffff, 0x0000,
+  0xffff, 0xffff, 0xffff, 0x0000
+};
+
+static const unsigned short asm_c255[8]
+  __attribute__ ((aligned (16))) =
+{
+  255, 255, 255, 255,
+  255, 255, 255, 255
+};
+
+static const unsigned short asm_c128[8]
+  __attribute__ ((aligned (16))) =
+{
+  128, 128, 128, 128,
+  128, 128, 128, 128
+};
+
+static const unsigned short asm_c257[8]
+  __attribute__ ((aligned (16))) =
+{
+  257, 257, 257, 257,
+  257, 257, 257, 257
+};
+
+static inline void
+composite_four_loop_asm (guchar **pp,
+                         guchar **qq,
+                         gint    *nn)
+{
+  guchar *p = *pp;
+  guchar *q = *qq;
+  gint n = *nn;
+
+  __asm__ volatile
+    (
+      "1:\n\t"
+      "cmpl $4, %[n]\n\t"
+      "jl 2f\n\t"
+
+      "movdqu (%[p]), %%xmm0\n\t"
+      "movdqu (%[q]), %%xmm1\n\t"
+
+      "movdqa %%xmm0, %%xmm2\n\t"
+      "pxor %%xmm7, %%xmm7\n\t"
+
+      "punpcklbw %%xmm7, %%xmm0\n\t"
+      "punpckhbw %%xmm7, %%xmm2\n\t"
+
+      "movdqa %%xmm1, %%xmm3\n\t"
+
+      "punpcklbw %%xmm7, %%xmm1\n\t"
+      "punpckhbw %%xmm7, %%xmm3\n\t"
+
+      "pshuflw $0xc6, %%xmm0, %%xmm0\n\t"
+      "pshuflw $0xc6, %%xmm2, %%xmm2\n\t"
+
+      "pshufhw $0xc6, %%xmm0, %%xmm0\n\t"
+      "pshufhw $0xc6, %%xmm2, %%xmm2\n\t"
+
+      "movdqa %%xmm0, %%xmm4\n\t"
+      "movdqa %%xmm2, %%xmm5\n\t"
+
+      "pshuflw $0xff, %%xmm4, %%xmm4\n\t"
+      "pshuflw $0xff, %%xmm5, %%xmm5\n\t"
+
+      "pshufhw $0xff, %%xmm4, %%xmm4\n\t"
+      "pshufhw $0xff, %%xmm5, %%xmm5\n\t"
+
+      "pand %[mask], %%xmm4\n\t"
+      "pand %[mask], %%xmm5\n\t"
+
+      "movdqa %%xmm4, %%xmm6\n\t"
+      "movdqa %%xmm5, %%xmm7\n\t"
+
+      "pxor %[c255], %%xmm6\n\t"
+      "pxor %[c255], %%xmm7\n\t"
+
+      "pmullw %%xmm4, %%xmm0\n\t"
+      "pmullw %%xmm5, %%xmm2\n\t"
+
+      GDK_PIXELOPS_PTR_ADD " $16, %[p]\n\t"
+      GDK_PIXELOPS_PTR_ADD " $16, %[q]\n\t"
+      "subl $4, %[n]\n\t"
+
+      "pmullw %%xmm6, %%xmm1\n\t"
+      "pmullw %%xmm7, %%xmm3\n\t"
+
+      "paddw %%xmm1, %%xmm0\n\t"
+      "paddw %%xmm3, %%xmm2\n\t"
+
+      "paddw %[c128], %%xmm0\n\t"
+      "paddw %[c128], %%xmm2\n\t"
+
+      "pmulhuw %[c257], %%xmm0\n\t"
+      "pmulhuw %[c257], %%xmm2\n\t"
+
+      "packuswb %%xmm2, %%xmm0\n\t"
+
+      "movdqu %%xmm0, -16(%[q])\n\t"
+
+      "jmp 1b\n\t"
+
+      "2:\n\t"
+
+      : [p] "+r" (p),
+        [q] "+r" (q),
+        [n] "+r" (n)
+
+      : [mask] "m" (asm_rgb_mask),
+        [c255] "m" (asm_c255),
+        [c128] "m" (asm_c128),
+        [c257] "m" (asm_c257)
+
+      : "cc",
+        "memory",
+        "xmm0",
+        "xmm1",
+        "xmm2",
+        "xmm3",
+        "xmm4",
+        "xmm5",
+        "xmm6",
+        "xmm7"
+    );
+
+  *pp = p;
+  *qq = q;
+  *nn = n;
+}
+
+static inline void
+composite_two_asm (guchar **pp,
+                   guchar **qq,
+                   gint    *nn)
+{
+  guchar *p = *pp;
+  guchar *q = *qq;
+  gint n = *nn;
+
+  __asm__ volatile
+    (
+      "cmpl $2, %[n]\n\t"
+      "jl 1f\n\t"
+
+      "movq (%[p]), %%xmm0\n\t"
+      "pxor %%xmm2, %%xmm2\n\t"
+      "punpcklbw %%xmm2, %%xmm0\n\t"
+
+      "movq (%[q]), %%xmm1\n\t"
+      "punpcklbw %%xmm2, %%xmm1\n\t"
+
+      "pshuflw $0xc6, %%xmm0, %%xmm0\n\t"
+      "pshufhw $0xc6, %%xmm0, %%xmm0\n\t"
+
+      "movdqa %%xmm0, %%xmm2\n\t"
+      "pshuflw $0xff, %%xmm2, %%xmm2\n\t"
+      "pshufhw $0xff, %%xmm2, %%xmm2\n\t"
+      "pand %[mask], %%xmm2\n\t"
+
+      "movdqa %%xmm2, %%xmm3\n\t"
+      "pxor %[c255], %%xmm3\n\t"
+
+      "pmullw %%xmm2, %%xmm0\n\t"
+      "pmullw %%xmm3, %%xmm1\n\t"
+
+      GDK_PIXELOPS_PTR_ADD " $8, %[p]\n\t"
+      GDK_PIXELOPS_PTR_ADD " $8, %[q]\n\t"
+      "subl $2, %[n]\n\t"
+
+      "paddw %%xmm1, %%xmm0\n\t"
+
+      "paddw %[c128], %%xmm0\n\t"
+      "pmulhuw %[c257], %%xmm0\n\t"
+
+      "pxor %%xmm1, %%xmm1\n\t"
+      "packuswb %%xmm1, %%xmm0\n\t"
+
+      "movq %%xmm0, -8(%[q])\n\t"
+
+      "1:\n\t"
+
+      : [p] "+r" (p),
+        [q] "+r" (q),
+        [n] "+r" (n)
+
+      : [mask] "m" (asm_rgb_mask),
+        [c255] "m" (asm_c255),
+        [c128] "m" (asm_c128),
+        [c257] "m" (asm_c257)
+
+      : "cc",
+        "memory",
+        "xmm0",
+        "xmm1",
+        "xmm2",
+        "xmm3"
+    );
+
+  *pp = p;
+  *qq = q;
+  *nn = n;
+}
+
+static inline void
+composite_one_asm (guchar *p,
+                   guchar *q)
+{
+
+  __asm__ volatile
+    (
+      "movd (%[p]), %%xmm0\n\t"
+      "pxor %%xmm2, %%xmm2\n\t"
+      "punpcklbw %%xmm2, %%xmm0\n\t"
+
+      "movd (%[q]), %%xmm1\n\t"
+      "punpcklbw %%xmm2, %%xmm1\n\t"
+
+      "pshuflw $0xc6, %%xmm0, %%xmm0\n\t"
+
+      "movdqa %%xmm0, %%xmm2\n\t"
+      "pshuflw $0xff, %%xmm2, %%xmm2\n\t"
+      "pand %[mask], %%xmm2\n\t"
+
+      "movdqa %%xmm2, %%xmm3\n\t"
+      "pxor %[c255], %%xmm3\n\t"
+
+      "pmullw %%xmm2, %%xmm0\n\t"
+      "pmullw %%xmm3, %%xmm1\n\t"
+
+      "paddw %%xmm1, %%xmm0\n\t"
+
+      "paddw %[c128], %%xmm0\n\t"
+      "pmulhuw %[c257], %%xmm0\n\t"
+
+      "pxor %%xmm1, %%xmm1\n\t"
+      "packuswb %%xmm1, %%xmm0\n\t"
+
+      "movd %%xmm0, (%[q])\n\t"
+
+      :
+      : [p] "r" (p),
+        [q] "r" (q),
+        [mask] "m" (asm_rgb_mask),
+        [c255] "m" (asm_c255),
+        [c128] "m" (asm_c128),
+        [c257] "m" (asm_c257)
+
+      : "memory",
+        "xmm0",
+        "xmm1",
+        "xmm2",
+        "xmm3"
+    );
+}
+
+G_GNUC_INTERNAL void
+_gdk_pixel_ops_composite_0888_sse2 (guchar *src_buf,
+                               gint    src_rowstride,
+                               guchar *dest_buf,
+                               gint    dest_rowstride,
+                               GdkByteOrder dest_byte_order,
+                               gint    width,
+                               gint    height)
+{
+  guchar *src = src_buf;
+  guchar *dest = dest_buf;
+
+  if (width <= 0 || height <= 0)
+    return;
+
+  if (dest_byte_order != GDK_LSB_FIRST)
+    {
+      _gdk_pixel_ops_composite_0888_generic
+        (src_buf,
+         src_rowstride,
+         dest_buf,
+         dest_rowstride,
+         dest_byte_order,
+         width,
+         height);
+      return;
+    }
+
+  while (height--)
+    {
+      gint n = width;
+      guchar *p = src;
+      guchar *q = dest;
+
+      composite_four_loop_asm (&p, &q, &n);
+
+      composite_two_asm (&p, &q, &n);
+
+      if (__builtin_expect (n != 0, 0))
+        composite_one_asm (p, q);
+
+      src += src_rowstride;
+      dest += dest_rowstride;
+    }
+}
--- a/gdk/gdkpixelops-x86.c
+++ b/gdk/gdkpixelops-x86.c
@ -0,0 +1,123 @@
+/* GDK - The GIMP Drawing Kit
+ *
+ * x86 pixel operation backend.
+ *
+ * This file is selected at build time only for x86 targets.
+ */
+
+#include "config.h"
+
+#include "gdkpixelops.h"
+
+#if !defined(__i386__) && !defined(__x86_64__) && \
+    !defined(_M_IX86) && !defined(_M_X64)
+#error "gdkpixelops-x86.c must only be built for an x86 target"
+#endif
+
+
+#include <cpuid.h>
+
+G_GNUC_INTERNAL void
+_gdk_pixel_ops_composite_0888_mmx (guchar       *src_buf,
+                                   gint          src_rowstride,
+                                   guchar       *dest_buf,
+                                   gint          dest_rowstride,
+                                   GdkByteOrder  dest_byte_order,
+                                   gint          width,
+                                   gint          height);
+
+G_GNUC_INTERNAL void
+_gdk_pixel_ops_composite_565_mmx (guchar       *src_buf,
+                                  gint          src_rowstride,
+                                  guchar       *dest_buf,
+                                  gint          dest_rowstride,
+                                  GdkByteOrder  dest_byte_order,
+                                  gint          width,
+                                  gint          height);
+
+G_GNUC_INTERNAL void
+_gdk_pixel_ops_composite_0888_sse (guchar       *src_buf,
+                                   gint          src_rowstride,
+                                   guchar       *dest_buf,
+                                   gint          dest_rowstride,
+                                   GdkByteOrder  dest_byte_order,
+                                   gint          width,
+                                   gint          height);
+
+G_GNUC_INTERNAL void
+_gdk_pixel_ops_composite_565_sse (guchar       *src_buf,
+                                  gint          src_rowstride,
+                                  guchar       *dest_buf,
+                                  gint          dest_rowstride,
+                                  GdkByteOrder  dest_byte_order,
+                                  gint          width,
+                                  gint          height);
+
+G_GNUC_INTERNAL void
+_gdk_pixel_ops_composite_0888_3dnow (guchar       *src_buf,
+                                     gint          src_rowstride,
+                                     guchar       *dest_buf,
+                                     gint          dest_rowstride,
+                                     GdkByteOrder  dest_byte_order,
+                                     gint          width,
+                                     gint          height);
+
+G_GNUC_INTERNAL void
+_gdk_pixel_ops_composite_565_3dnow (guchar       *src_buf,
+                                    gint          src_rowstride,
+                                    guchar       *dest_buf,
+                                    gint          dest_rowstride,
+                                    GdkByteOrder  dest_byte_order,
+                                    gint          width,
+                                    gint          height);
+
+G_GNUC_INTERNAL void
+_gdk_pixel_ops_composite_0888_sse2 (guchar       *src_buf,
+                                    gint          src_rowstride,
+                                    guchar       *dest_buf,
+                                    gint          dest_rowstride,
+                                    GdkByteOrder  dest_byte_order,
+                                    gint          width,
+                                    gint          height);
+
+G_GNUC_INTERNAL void
+_gdk_pixel_ops_init (void)
+{
+  unsigned int eax;
+  unsigned int ebx;
+  unsigned int ecx;
+  unsigned int edx;
+  unsigned int standard_edx;
+
+  if (__get_cpuid (1, &eax, &ebx, &ecx, &edx) &&
+      (edx & bit_MMX) != 0)
+    {
+      standard_edx = edx;
+
+      _gdk_pixel_ops.composite_0888 =
+        _gdk_pixel_ops_composite_0888_mmx;
+      _gdk_pixel_ops.composite_565 =
+        _gdk_pixel_ops_composite_565_mmx;
+
+      if ((edx & bit_SSE) != 0)
+        {
+          _gdk_pixel_ops.composite_0888 =
+            _gdk_pixel_ops_composite_0888_sse;
+          _gdk_pixel_ops.composite_565 =
+            _gdk_pixel_ops_composite_565_sse;
+        }
+
+      if (__get_cpuid (0x80000001U, &eax, &ebx, &ecx, &edx) &&
+          (edx & bit_3DNOW) != 0)
+        {
+          _gdk_pixel_ops.composite_0888 =
+            _gdk_pixel_ops_composite_0888_3dnow;
+          _gdk_pixel_ops.composite_565 =
+            _gdk_pixel_ops_composite_565_3dnow;
+        }
+
+      if ((standard_edx & bit_SSE2) != 0)
+        _gdk_pixel_ops.composite_0888 =
+          _gdk_pixel_ops_composite_0888_sse2;
+    }
+}
--- a/gdk/gdkpixelops.c
+++ b/gdk/gdkpixelops.c
@ -0,0 +1,55 @@
+/* GDK - The GIMP Drawing Kit
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ *
+ * 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.
+ */
+
+#include "config.h"
+
+#include "gdkpixelops.h"
+
+G_GNUC_INTERNAL void
+_gdk_pixel_ops_composite_0888_generic (guchar       *src_buf,
+                                       gint          src_rowstride,
+                                       guchar       *dest_buf,
+                                       gint          dest_rowstride,
+                                       GdkByteOrder  dest_byte_order,
+                                       gint          width,
+                                       gint          height);
+
+G_GNUC_INTERNAL void
+_gdk_pixel_ops_composite_565_generic (guchar       *src_buf,
+                                      gint          src_rowstride,
+                                      guchar       *dest_buf,
+                                      gint          dest_rowstride,
+                                      GdkByteOrder  dest_byte_order,
+                                      gint          width,
+                                      gint          height);
+
+#ifdef GDK_PIXELOPS_X86_64
+G_GNUC_INTERNAL void
+_gdk_pixel_ops_composite_0888_sse2 (guchar       *src_buf,
+                                    gint          src_rowstride,
+                                    guchar       *dest_buf,
+                                    gint          dest_rowstride,
+                                    GdkByteOrder  dest_byte_order,
+                                    gint          width,
+                                    gint          height);
+#endif
+
+G_GNUC_INTERNAL GdkPixelOps _gdk_pixel_ops = {
+#ifdef GDK_PIXELOPS_X86_64
+  _gdk_pixel_ops_composite_0888_sse2,
+#else
+  _gdk_pixel_ops_composite_0888_generic,
+#endif
+  _gdk_pixel_ops_composite_565_generic
+};
--- a/gdk/gdkpixelops.h
+++ b/gdk/gdkpixelops.h
@ -0,0 +1,37 @@
+/* GDK - The GIMP Drawing Kit
+ *
+ * Private pixel operation dispatch.
+ */
+
+#ifndef __GDK_PIXEL_OPS_H__
+#define __GDK_PIXEL_OPS_H__
+
+#include "gdktypes.h"
+
+G_BEGIN_DECLS
+
+typedef void (*GdkCompositeFunc) (guchar       *src_buf,
+                                  gint          src_rowstride,
+                                  guchar       *dest_buf,
+                                  gint          dest_rowstride,
+                                  GdkByteOrder  dest_byte_order,
+                                  gint          width,
+                                  gint          height);
+
+typedef struct
+{
+  GdkCompositeFunc composite_0888;
+  GdkCompositeFunc composite_565;
+} GdkPixelOps;
+
+extern G_GNUC_INTERNAL GdkPixelOps _gdk_pixel_ops;
+
+#ifdef HAVE_GDK_PIXELOPS_INIT
+G_GNUC_INTERNAL void _gdk_pixel_ops_init (void);
+#else
+#define _gdk_pixel_ops_init() ((void) 0)
+#endif
+
+G_END_DECLS
+
+#endif /* __GDK_PIXEL_OPS_H__ */
--- a/gdk/gdkrgb.c
+++ b/gdk/gdkrgb.c
--- a/gdk/gdkrgb.h
+++ b/gdk/gdkrgb.h
@ -147,6 +147,48 @@ gboolean     gdk_rgb_colormap_ditherable (GdkColormap *cmap);
 #endif
 #endif /* GDK_DISABLE_DEPRECATED */

+void        gdk_draw_rgb_48_image           (GdkDrawable   *drawable,
+                                               GdkGC         *gc,
+                                               gint           x,
+                                               gint           y,
+                                               gint           width,
+                                               gint           height,
+                                               GdkRgbDither   dith,
+                                               const guint16 *rgb_buf,
+                                               gint           rowstride);
+void        gdk_draw_rgb_48_image_dithalign (GdkDrawable   *drawable,
+                                               GdkGC         *gc,
+                                               gint           x,
+                                               gint           y,
+                                               gint           width,
+                                               gint           height,
+                                               GdkRgbDither   dith,
+                                               const guint16 *rgb_buf,
+                                               gint           rowstride,
+                                               gint           xdith,
+                                               gint           ydith);
+void        gdk_draw_rgbx_64_image          (GdkDrawable   *drawable,
+                                               GdkGC         *gc,
+                                               gint           x,
+                                               gint           y,
+                                               gint           width,
+                                               gint           height,
+                                               GdkRgbDither   dith,
+                                               const guint16 *rgbx_buf,
+                                               gint           rowstride);
+void        gdk_draw_rgbx_64_image_dithalign
+                                              (GdkDrawable   *drawable,
+                                               GdkGC         *gc,
+                                               gint           x,
+                                               gint           y,
+                                               gint           width,
+                                               gint           height,
+                                               GdkRgbDither   dith,
+                                               const guint16 *rgbx_buf,
+                                               gint           rowstride,
+                                               gint           xdith,
+                                               gint           ydith);
+
 G_END_DECLS


--- a/gdk/makefile.msc
+++ b/gdk/makefile.msc
@ -72,6 +72,9 @@ gdk_OBJECTS = \
 	gdkdisplaymanager.obj \
 	gdkdnd.obj \
 	gdkdraw.obj \
+	gdkpixelops.obj \
+	gdkpixelops-generic.obj \
+	gdkpixelops-x86.obj \
 	gdkenumtypes.obj \
 	gdkevents.obj \
 	gdkfont.obj \
--- a/gdk/makegdkalias.pl
+++ b/gdk/makegdkalias.pl
@ -14,7 +14,7 @@ print <<EOF;

 #include <glib.h>

-#ifdef G_HAVE_GNUC_VISIBILITY
+#if defined(G_HAVE_GNUC_VISIBILITY) && !defined(__APPLE__)

 EOF

--- a/gdk/quartz/GdkQuartzView.c
+++ b/gdk/quartz/GdkQuartzView.c
@ -599,6 +599,25 @@
    gdk_screen_get_rgba_colormap (_gdk_screen);
 }

+-(void)viewWillDraw
+{
+  /* macOS 11 (Big Sur) and newer may use a higher precision backing
+   * format for layer contents.  For GTK2's 8-bit drawing this can add
+   * avoidable conversion overhead.  Use a dynamic Objective-C call here
+   * instead of a hard QuartzCore/CALayer dependency, so old SDKs and old
+   * macOS targets keep building and keep their old behaviour.
+   */
+  if (gdk_quartz_osx_version () >= GDK_OSX_BIG_SUR)
+    {
+      id layer = [self layer];
+
+      if (layer && [layer respondsToSelector: @selector(setContentsFormat:)])
+        [layer setValue: @"RGBA8Uint" forKey: @"contentsFormat"];
+    }
+
+  [super viewWillDraw];
+}
+
 -(void)drawRect: (NSRect)rect
 {
  GdkRectangle gdk_rect;
--- a/gdk/quartz/gdkdrawable-quartz.c
+++ b/gdk/quartz/gdkdrawable-quartz.c
@ -893,6 +893,7 @@ gdk_quartz_drawable_release_context (GdkDrawable  *drawable,
      if (window_impl->in_paint_rect_count == 0)
        {
          _gdk_quartz_drawable_flush (drawable);
+          if (gdk_quartz_osx_version () < GDK_OSX_MOJAVE)
            [window_impl->view unlockFocus];
        }
    }
--- a/gdk/quartz/gdkglobals-quartz.c
+++ b/gdk/quartz/gdkglobals-quartz.c
@ -34,9 +34,20 @@ gdk_quartz_osx_version (void)

  if (minor == GDK_OSX_UNSUPPORTED)
    {
-      OSErr err = Gestalt (gestaltSystemVersionMinor, (SInt32*)&minor);
+      gint32 major = GDK_OSX_UNSUPPORTED;
+      OSErr err = Gestalt (gestaltSystemVersionMajor, (SInt32*)&major);

      g_return_val_if_fail (err == noErr, GDK_OSX_UNSUPPORTED);
+
+      err = Gestalt (gestaltSystemVersionMinor, (SInt32*)&minor);
+      g_return_val_if_fail (err == noErr, GDK_OSX_UNSUPPORTED);
+
+      /* GTK2 encodes macOS 10.x releases by their minor version.
+       * Map macOS 11+ into the same sequence:
+       * 11 -> 16, 12 -> 17, 13 -> 18, ...
+       */
+      if (major > 10)
+        minor = major + 5;
    }

  if (minor < GDK_OSX_MIN)
--- a/gdk/quartz/gdkinput.c
+++ b/gdk/quartz/gdkinput.c
@ -235,8 +235,6 @@ gdk_device_set_axis_use (GdkDevice   *device,
                         guint        index,
                         GdkAxisUse   use)
 {
-#if 0
-  /* Remapping axes is unsupported for now */
  g_return_if_fail (device != NULL);
  g_return_if_fail (index < device->num_axes);

@ -259,7 +257,6 @@ gdk_device_set_axis_use (GdkDevice   *device,
      device->axes[index].max = 1;
      break;
    }
-#endif
 }

 /**
--- a/gdk/quartz/gdkquartz.h
+++ b/gdk/quartz/gdkquartz.h
@ -54,7 +54,13 @@ typedef enum
  GDK_OSX_SIERRA = 12,
  GDK_OSX_HIGH_SIERRA = 13,
  GDK_OSX_MOJAVE = 14,
-  GDK_OSX_CURRENT = 14,
+  GDK_OSX_CATALINA = 15,
+  GDK_OSX_BIG_SUR = 16,
+  GDK_OSX_MONTEREY = 17,
+  GDK_OSX_VENTURA = 18,
+  GDK_OSX_SONOMA = 19,
+  GDK_OSX_SEQUOIA = 20,
+  GDK_OSX_CURRENT = 20,
  GDK_OSX_NEW = 99
 } GdkOSXVersion;

--- a/gdk/quartz/gdkwindow-quartz.c
+++ b/gdk/quartz/gdkwindow-quartz.c
@ -104,7 +104,8 @@ gdk_window_impl_quartz_get_context (GdkDrawable *drawable,
   * and for widgets that send fake expose events like the arrow
   * buttons in spinbuttons or the position marker in rulers.
   */
-  if (window_impl->in_paint_rect_count == 0)
+  if (window_impl->in_paint_rect_count == 0 &&
+      gdk_quartz_osx_version () < GDK_OSX_MOJAVE)
    {
      if (![window_impl->view lockFocusIfCanDraw])
        return NULL;
@ -468,6 +469,7 @@ _gdk_windowing_before_process_all_updates (void)
 {
  in_process_all_updates = TRUE;

+  if (gdk_quartz_osx_version () < GDK_OSX_MOJAVE)
    NSDisableScreenUpdates ();
 }

@ -489,7 +491,8 @@ _gdk_windowing_after_process_all_updates (void)

      /* 10.14 needs to be told that the view needs to be redrawn, see
       * https://gitlab.gnome.org/GNOME/gtk/issues/1479 */
-      if (gdk_quartz_osx_version() >= GDK_OSX_MOJAVE)
+      if (gdk_quartz_osx_version () >= GDK_OSX_MOJAVE &&
+          gdk_quartz_osx_version () < GDK_OSX_BIG_SUR)
        [[nswindow contentView] setNeedsDisplay:YES];
      [nswindow enableFlushWindow];
      [nswindow flushWindow];
@ -502,6 +505,7 @@ _gdk_windowing_after_process_all_updates (void)

  in_process_all_updates = FALSE;

+  if (gdk_quartz_osx_version () < GDK_OSX_MOJAVE)
    NSEnableScreenUpdates ();
 }

--- a/gdk/win32/gdkgc-win32.c
+++ b/gdk/win32/gdkgc-win32.c
@ -173,10 +173,10 @@ fixup_pen (GdkGCWin32 *win32_gc)
 	  win32_gc->pen_num_dashes = 1;
 	}

-      if (!(win32_gc->pen_style & PS_TYPE_MASK) == PS_GEOMETRIC &&
+      if (!(win32_gc->pen_style & PS_TYPE_MASK) &&
 	  win32_gc->pen_dashes[0] == 1 &&
 	  (win32_gc->pen_num_dashes == 1 ||
-	   (win32_gc->pen_num_dashes == 2 && win32_gc->pen_dashes[0] == 1)))
+	   (win32_gc->pen_num_dashes == 2 && win32_gc->pen_dashes[1] == 1)))
 	win32_gc->pen_style |= PS_ALTERNATE;
      else
 	win32_gc->pen_style |= PS_USERSTYLE;
@ -744,17 +744,21 @@ predraw (GdkGC       *gc,
 static GdkDrawableImplWin32 *
 get_impl_drawable (GdkDrawable *drawable)
 {
-  if (GDK_IS_OFFSCREEN_WINDOW (drawable))
-    return _gdk_offscreen_window_get_real_drawable (GDK_OFFSCREEN_WINDOW (drawable));
-  if (GDK_IS_DRAWABLE_IMPL_WIN32 (drawable))
-    return GDK_DRAWABLE_IMPL_WIN32(drawable);
-  else if (GDK_IS_WINDOW (drawable))
-    return GDK_DRAWABLE_IMPL_WIN32 ((GDK_WINDOW_OBJECT (drawable))->impl);
-  else if (GDK_IS_PIXMAP (drawable))
-    return GDK_DRAWABLE_IMPL_WIN32 ((GDK_PIXMAP_OBJECT (drawable))->impl);
-  else
-    g_assert_not_reached ();
+  if (GDK_IS_WINDOW (drawable))
+    drawable = GDK_DRAWABLE ((GDK_WINDOW_OBJECT (drawable))->impl);

+  if (GDK_IS_OFFSCREEN_WINDOW (drawable))
+    drawable =
+      _gdk_offscreen_window_get_real_drawable
+        (GDK_OFFSCREEN_WINDOW (drawable));
+
+  if (GDK_IS_PIXMAP (drawable))
+    drawable = GDK_DRAWABLE ((GDK_PIXMAP_OBJECT (drawable))->impl);
+
+  if (GDK_IS_DRAWABLE_IMPL_WIN32 (drawable))
+    return GDK_DRAWABLE_IMPL_WIN32 (drawable);
+
+  g_assert_not_reached ();
  return NULL;
 }

--- a/gdk/win32/gdkimage-win32.c
+++ b/gdk/win32/gdkimage-win32.c
@ -128,33 +128,11 @@ _gdk_win32_new_image (GdkVisual *visual,
  image->height = height;
  image->depth = depth;
  image->bits_per_pixel = _gdk_windowing_get_bits_for_depth (gdk_display_get_default (), depth);
-  switch (depth)
-    {
-    case 1:
-    case 4:
-    case 5:
-    case 6:
-    case 7:
-    case 8:
-      image->bpp = 1;
-      break;
-    case 15:
-    case 16:
-      image->bpp = 2;
-      break;
-    case 24:
-      image->bpp = image->bits_per_pixel / 8;
-      break;
-    case 32:
-      image->bpp = 4;
-      break;
-    default:
-      g_warning ("_gdk_win32_new_image: depth=%d", image->depth);
-      g_assert_not_reached ();
-    }
-  if (depth == 1)
+  /* Keep logical depth separate from the native DIB storage size. */
+  image->bpp = (image->bits_per_pixel + 7) / 8;
+  if (image->bits_per_pixel == 1)
    image->bpl = ((width - 1)/32 + 1)*4;
-  else if (depth == 4)
+  else if (image->bits_per_pixel == 4)
    image->bpl = ((width - 1)/8 + 1)*4;
  else
    image->bpl = ((width*image->bpp - 1)/4 + 1)*4;
@ -285,10 +263,10 @@ gdk_image_get_pixel (GdkImage *image,
  if (!(x >= 0 && x < image->width && y >= 0 && y < image->height))
      return 0;

-  if (image->depth == 1)
+  if (image->bits_per_pixel == 1)
    return (((guchar *) image->mem)[y * image->bpl + (x >> 3)] & (1 << (7 - (x & 0x7)))) != 0;

-  if (image->depth == 4)
+  if (image->bits_per_pixel == 4)
    {
      pixelp = (guchar *) image->mem + y * image->bpl + (x >> 1);
      if (x&1)
@ -334,12 +312,12 @@ gdk_image_put_pixel (GdkImage *image,
    return;

  GdiFlush ();
-  if (image->depth == 1)
+  if (image->bits_per_pixel == 1)
    if (pixel & 1)
      ((guchar *) image->mem)[y * image->bpl + (x >> 3)] |= (1 << (7 - (x & 0x7)));
    else
      ((guchar *) image->mem)[y * image->bpl + (x >> 3)] &= ~(1 << (7 - (x & 0x7)));
-  else if (image->depth == 4)
+  else if (image->bits_per_pixel == 4)
    {
      pixelp = (guchar *) image->mem + y * image->bpl + (x >> 1);

--- a/gdk/win32/gdkkeys-win32.c
+++ b/gdk/win32/gdkkeys-win32.c
@ -692,6 +692,7 @@ update_keymap (GdkKeymap *gdk_keymap)
  if (hkls_len != keymap->layout_handles->len)
    keymap->keysym_tab = g_renew (guint, keymap->keysym_tab, keysym_tab_size);

+  memset (key_state, 0, sizeof(key_state));
  memset (keymap->keysym_tab, 0, keysym_tab_size);
  g_array_set_size (keymap->layout_handles, hkls_len);
  g_array_set_size (keymap->options, hkls_len);
--- a/gdk/win32/gdkpixmap-win32.c
+++ b/gdk/win32/gdkpixmap-win32.c
@ -191,6 +191,12 @@ _gdk_pixmap_new (GdkDrawable *drawable,
      format = CAIRO_FORMAT_A1;
      break;

+    case 2:
+    case 3:
+    case 4:
+    case 5:
+    case 6:
+    case 7:
    case 8:
      format = CAIRO_FORMAT_A8;
      break;
@ -228,7 +234,7 @@ _gdk_pixmap_new (GdkDrawable *drawable,
        gdk_drawable_set_colormap (pixmap, cmap);
    }

-  if (depth != 15 && depth != 16)
+  if (depth == 1 || depth == 24 || depth == 32)
    {
      dib_surface = cairo_win32_surface_create_with_dib (format, width, height);
      if (dib_surface == NULL ||
@ -238,8 +244,10 @@ _gdk_pixmap_new (GdkDrawable *drawable,
 	  return NULL;
 	}

-      /* We need to have cairo create the dibsection for us, because
-	 creating a cairo surface from a hdc only works for rgb24 format */
+      /*
+       * Let Cairo own storage for the formats that it represents
+       * directly on Win32.
+       */
      hdc = cairo_win32_surface_get_dc (dib_surface);

      /* Get the bitmap from the cairo hdc */
@ -261,7 +269,6 @@ _gdk_pixmap_new (GdkDrawable *drawable,
    }
  else
    {
-      /* 16 bpp not supported by win32 cairo surface */
      struct {
        BITMAPINFOHEADER bmiHeader;
        union {
@ -270,14 +277,63 @@ _gdk_pixmap_new (GdkDrawable *drawable,
          RGBQUAD bmiColors[256];
        } u;
      } bmi;
-      UINT iUsage;
-      HWND hwnd;
+      GdkColormapPrivateWin32 *cmapp;
      GdkVisual *visual;
+      HPALETTE holdpal = NULL;
+      UINT iUsage = DIB_RGB_COLORS;
+      HWND hwnd;
+      gint n_colors = 0;
+      gint i;
+
+      /*
+       * Low-depth pixmaps need their native palette layout while
+       * 15/16-bpp pixmaps need explicit channel masks. Both use the
+       * same manually allocated DIB/HDC lifecycle.
+       */
+      memset (&bmi.bmiHeader, 0, sizeof (bmi.bmiHeader));
+      bmi.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
+      bmi.bmiHeader.biWidth = width;
+      bmi.bmiHeader.biHeight = -height;
+      bmi.bmiHeader.biPlanes = 1;
+
+      if (depth <= 8)
+        {
+          bmi.bmiHeader.biBitCount =
+            _gdk_windowing_get_bits_for_depth (
+              gdk_display_get_default (), depth);
+          bmi.bmiHeader.biCompression = BI_RGB;
+
+          n_colors = 1 << depth;
+          bmi.bmiHeader.biClrUsed = n_colors;
+        }
+      else
+        {
+          bmi.bmiHeader.biBitCount = 16;
+          bmi.bmiHeader.biCompression = BI_BITFIELDS;
+
+          visual = gdk_visual_get_system ();
+
+          if (visual->depth == depth)
+            {
+              bmi.u.bmiMasks[0] = visual->red_mask;
+              bmi.u.bmiMasks[1] = visual->green_mask;
+              bmi.u.bmiMasks[2] = visual->blue_mask;
+            }
+          else
+            {
+              bmi.u.bmiMasks[0] =
+                depth == 15 ? 0x00007C00 : 0x0000F800;
+              bmi.u.bmiMasks[1] =
+                depth == 15 ? 0x000003E0 : 0x000007E0;
+              bmi.u.bmiMasks[2] = 0x0000001F;
+            }
+        }

      if (GDK_IS_WINDOW (drawable))
        hwnd = GDK_WINDOW_HWND (drawable);
      else
        hwnd = GetDesktopWindow ();
+
      if ((hdc = GetDC (hwnd)) == NULL)
        {
          WIN32_GDI_FAILED ("GetDC");
@ -285,47 +341,114 @@ _gdk_pixmap_new (GdkDrawable *drawable,
          return NULL;
        }

-      bmi.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
-      bmi.bmiHeader.biWidth = width;
-      bmi.bmiHeader.biHeight = -height;
-      bmi.bmiHeader.biPlanes = 1;
-      bmi.bmiHeader.biBitCount = 16;
-      bmi.bmiHeader.biCompression = BI_BITFIELDS;
-      bmi.bmiHeader.biSizeImage = 0;
-      bmi.bmiHeader.biXPelsPerMeter =
-	bmi.bmiHeader.biYPelsPerMeter = 0;
-      bmi.bmiHeader.biClrUsed = 0;
-      bmi.bmiHeader.biClrImportant = 0;
+      if (depth <= 8 && drawable_impl->colormap)
+        {
+          cmapp =
+            GDK_WIN32_COLORMAP_DATA (
+              drawable_impl->colormap);

-      iUsage = DIB_RGB_COLORS;
-      visual = gdk_visual_get_system ();
-      bmi.u.bmiMasks[0] = visual->red_mask;
-      bmi.u.bmiMasks[1] = visual->green_mask;
-      bmi.u.bmiMasks[2] = visual->blue_mask;
+          holdpal =
+            SelectPalette (
+              hdc,
+              cmapp->hpal,
+              FALSE);

-      if ((hbitmap = CreateDIBSection (hdc, (BITMAPINFO *) &bmi,
-				       iUsage, (PVOID *) &bits, NULL, 0)) == NULL)
+          if (holdpal == NULL)
+            WIN32_GDI_FAILED ("SelectPalette");
+          else
+            {
+              if (RealizePalette (hdc) == GDI_ERROR)
+                WIN32_GDI_FAILED ("RealizePalette");
+
+              iUsage = DIB_PAL_COLORS;
+
+              for (i = 0; i < n_colors; i++)
+                bmi.u.bmiIndices[i] = i;
+            }
+        }
+
+      /*
+       * DIB_RGB_COLORS consumes RGBQUAD entries. Only initialize the
+       * entries actually used; DIB_PAL_COLORS already has its WORD
+       * indices filled above.
+       */
+      if (depth <= 8 && iUsage == DIB_RGB_COLORS)
+        memset (bmi.u.bmiColors, 0,
+                n_colors * sizeof (bmi.u.bmiColors[0]));
+
+      hbitmap =
+        CreateDIBSection (
+          hdc,
+          (BITMAPINFO *) &bmi,
+          iUsage,
+          (PVOID *) &bits,
+          NULL,
+          0);
+
+      if (hbitmap == NULL)
        {
          WIN32_GDI_FAILED ("CreateDIBSection");
+
+          if (holdpal)
+            SelectPalette (hdc, holdpal, FALSE);
+
          GDI_CALL (ReleaseDC, (hwnd, hdc));
          g_object_unref ((GObject *) pixmap);
          return NULL;
        }
-      GDI_CALL (ReleaseDC, (hwnd, hdc));

-      dib_surface = cairo_image_surface_create_for_data (bits,
-							 format, width, height,
-							 (width * 2 + 3) & ~3);
+      if (holdpal)
+        SelectPalette (hdc, holdpal, FALSE);
+
+      GDI_CALL (ReleaseDC, (hwnd, hdc));

      hdc = CreateCompatibleDC (NULL);
-      if (!hdc)
+
+      if (hdc == NULL)
        {
          WIN32_GDI_FAILED ("CreateCompatibleDC");
+          GDI_CALL (DeleteObject, (hbitmap));
+          g_object_unref ((GObject *) pixmap);
+          return NULL;
+        }
+
+      if (SelectObject (hdc, hbitmap) == NULL)
+        {
+          WIN32_GDI_FAILED ("SelectObject");
+          GDI_CALL (DeleteDC, (hdc));
+          GDI_CALL (DeleteObject, (hbitmap));
+          g_object_unref ((GObject *) pixmap);
+          return NULL;
+        }
+
+      if (depth != 16 ||
+          bmi.u.bmiMasks[0] != 0x0000F800 ||
+          bmi.u.bmiMasks[1] != 0x000007E0 ||
+          bmi.u.bmiMasks[2] != 0x0000001F)
+        dib_surface =
+          cairo_win32_surface_create (hdc);
+      else
+        dib_surface =
+          cairo_image_surface_create_for_data (
+            bits,
+            format,
+            width,
+            height,
+            (width * 2 + 3) & ~3);
+
+      if (dib_surface == NULL ||
+          cairo_surface_status (dib_surface) !=
+            CAIRO_STATUS_SUCCESS)
+        {
+          if (dib_surface)
+            cairo_surface_destroy (dib_surface);
+
+          GDI_CALL (DeleteDC, (hdc));
+          GDI_CALL (DeleteObject, (hbitmap));
          g_object_unref ((GObject *) pixmap);
          return NULL;
        }

-      SelectObject (hdc, hbitmap);
      pixmap_impl->is_allocated = TRUE;
    }

--- a/gdk/win32/gdkwindow-win32.c
+++ b/gdk/win32/gdkwindow-win32.c
@ -2767,6 +2767,10 @@ _gdk_windowing_window_at_pointer (GdkDisplay *display,
       * WindowFromPoint() can find our windows, we follow similar logic
       * here, and ignore invisible and disabled windows.
       */
+      UINT cwp_flags = CWP_SKIPDISABLED  |
+                       CWP_SKIPINVISIBLE |
+                       CWP_SKIPTRANSPARENT;
+
      hwnd = GetDesktopWindow ();
      do {
        window = gdk_win32_handle_table_lookup ((GdkNativeWindow) hwnd);
@ -2777,8 +2781,7 @@ _gdk_windowing_window_at_pointer (GdkDisplay *display,
          break;

        screen_to_client (hwnd, screen_pt, &client_pt);
-        hwndc = ChildWindowFromPointEx (hwnd, client_pt, CWP_SKIPDISABLED  |
-                                                         CWP_SKIPINVISIBLE);
+        hwndc = ChildWindowFromPointEx (hwnd, client_pt, cwp_flags);

 	/* Verify that we're really inside the client area of the window */
 	if (hwndc != hwnd)
@ -2789,6 +2792,8 @@ _gdk_windowing_window_at_pointer (GdkDisplay *display,
 	      hwndc = hwnd;
 	  }

+        /* Only ignore top-level transparent windows */
+        cwp_flags &= ~CWP_SKIPTRANSPARENT;
      } while (hwndc != hwnd && (hwnd = hwndc, 1));

    }
--- a/gdk/x11/gdkdisplay-x11.h
+++ b/gdk/x11/gdkdisplay-x11.h
@ -78,6 +78,7 @@ struct _GdkDisplayX11

  gboolean use_xshm;
  gboolean have_shm_pixmaps;
+  guint8 bits_per_depth[33];
  GdkTristate have_render;
  gboolean have_xfixes;
  gint xfixes_event_base;
--- a/gdk/x11/gdkdrawable-x11.c
+++ b/gdk/x11/gdkdrawable-x11.c
@ -1462,6 +1462,26 @@ draw_with_pixmaps (GdkDrawable       *drawable,
 }
 #endif

+static gboolean
+gdk_x11_drawable_can_composite_101010 (GdkDrawable *drawable)
+{
+  GdkVisual *visual;
+
+  visual = gdk_drawable_get_visual (drawable);
+
+  return visual != NULL &&
+         visual->type == GDK_VISUAL_TRUE_COLOR &&
+         visual->depth == 30 &&
+         _gdk_windowing_get_bits_for_depth (
+           gdk_drawable_get_display (drawable), 30) == 32 &&
+         visual->byte_order ==
+           (G_BYTE_ORDER == G_BIG_ENDIAN ?
+            GDK_MSB_FIRST : GDK_LSB_FIRST) &&
+         visual->red_mask   == 0x3ff00000 &&
+         visual->green_mask == 0x000ffc00 &&
+         visual->blue_mask  == 0x000003ff;
+}
+
 static void
 gdk_x11_draw_pixbuf (GdkDrawable     *drawable,
 		     GdkGC           *gc,
@ -1488,6 +1508,8 @@ gdk_x11_draw_pixbuf (GdkDrawable     *drawable,

  if (format_type == GDK_X11_FORMAT_NONE ||
      !gdk_pixbuf_get_has_alpha (pixbuf) ||
+      (gdk_drawable_get_depth (drawable) == 30 &&
+       gdk_x11_drawable_can_composite_101010 (drawable)) ||
      gdk_drawable_get_depth (drawable) == 1 ||
      (dither == GDK_RGB_DITHER_MAX && gdk_drawable_get_depth (drawable) != 24) ||
      gdk_x11_drawable_get_picture (drawable) == None)
--- a/gdk/x11/gdkimage-x11.c
+++ b/gdk/x11/gdkimage-x11.c
@ -789,19 +789,33 @@ gint
 _gdk_windowing_get_bits_for_depth (GdkDisplay *display,
                                   gint        depth)
 {
+  GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
  XPixmapFormatValues *formats;
  gint count, i;
+  gint result = -1;
+
+  if ((guint) depth < G_N_ELEMENTS (display_x11->bits_per_depth) &&
+      display_x11->bits_per_depth[depth] != 0)
+    return display_x11->bits_per_depth[depth];

  formats = XListPixmapFormats (GDK_DISPLAY_XDISPLAY (display), &count);

  for (i = 0; i < count; i++)
-    if (formats[i].depth == depth)
    {
-	gint result = formats[i].bits_per_pixel;
-	XFree (formats);
-	return result;
+      if ((guint) formats[i].depth <
+          G_N_ELEMENTS (display_x11->bits_per_depth))
+        display_x11->bits_per_depth[formats[i].depth] =
+          formats[i].bits_per_pixel;
+
+      if (formats[i].depth == depth)
+        result = formats[i].bits_per_pixel;
    }

+  XFree (formats);
+
+  if (result != -1)
+    return result;
+
  g_assert_not_reached ();
  return -1;
 }
--- a/gtk/Makefile.am
+++ b/gtk/Makefile.am
@ -2,6 +2,9 @@
 include $(top_srcdir)/Makefile.decl
 -include $(INTROSPECTION_MAKEFILE)
 INTROSPECTION_GIRS =
+if OS_WIN32
+INTROSPECTION_SCANNER_ENV = PATH="$(builddir):$(builddir)/.libs:$${PATH}"
+endif
 INTROSPECTION_SCANNER_ARGS = \
 	--warn-all \
 	--add-include-path=../gdk
@ -1139,7 +1142,7 @@ $(GTK_UPDATE_ICON_CACHE_MANIFEST):
 	 echo '</assembly>' ) >$@

 $(GTK_UPDATE_ICON_CACHE_RC):
-	(echo -e '#include <winbase.h>\nCREATEPROCESS_MANIFEST_RESOURCE_ID RT_MANIFEST '$(GTK_UPDATE_ICON_CACHE_MANIFEST)) >$@
+	(echo -e '#include <winbase.h>\nCREATEPROCESS_MANIFEST_RESOURCE_ID RT_MANIFEST "'$(GTK_UPDATE_ICON_CACHE_MANIFEST)'"') >$@

 $(GTK_UPDATE_ICON_CACHE_MANIFEST_OBJECT): $(GTK_UPDATE_ICON_CACHE_RC) $(GTK_UPDATE_ICON_CACHE_MANIFEST)
 	$(WINDRES) --input $< --output $@ --output-format=coff
--- a/gtk/gtkcontainer.c
+++ b/gtk/gtkcontainer.c
@ -40,6 +40,9 @@
 #include "gtktoolbar.h"
 #include <gobject/gobjectnotifyqueue.c>
 #include <gobject/gvaluecollector.h>
+#ifdef GDK_WINDOWING_QUARTZ
+#include "gdk/quartz/gdkquartz.h"
+#endif
 #include "gtkalias.h"


@ -1357,7 +1360,16 @@ gtk_container_idle_sizer (gpointer data)
      gtk_container_check_resize (GTK_CONTAINER (widget));
    }

+#ifdef GDK_WINDOWING_QUARTZ
+  /* macOS 11 and newer can trigger expensive full-window redraws here.
+   * Keep the traditional update processing path for older Quartz targets,
+   * but let the normal GDK update idle handle updates on Big Sur and newer.
+   */
+  if (gdk_quartz_osx_version () < GDK_OSX_BIG_SUR)
    gdk_window_process_all_updates ();
+#else
+  gdk_window_process_all_updates ();
+#endif

  return FALSE;
 }
--- a/gtk/gtkfilechooserdefault.c
+++ b/gtk/gtkfilechooserdefault.c
@ -410,7 +410,8 @@ static void load_remove_timer (GtkFileChooserDefault *impl, LoadState new_load_s
 static void browse_files_center_selected_row (GtkFileChooserDefault *impl);

 static void view_mode_set (GtkFileChooserDefault *impl, ViewMode view_mode);
-static void view_mode_combo_box_changed_cb (GtkComboBox           *combo,
+static void icon_view_scale_create (GtkFileChooserDefault *impl);
+static void view_mode_toggle_button_toggled_cb (GtkToggleButton           *toggle,
                                            GtkFileChooserDefault *impl);

 static void icon_view_scale_value_changed_cb (GtkRange              *range,
@ -5208,12 +5209,22 @@ view_mode_set (GtkFileChooserDefault *impl, ViewMode view_mode)
    return;

  impl->view_mode = view_mode;
-  gtk_combo_box_set_active (GTK_COMBO_BOX (impl->view_mode_combo_box),
-                            view_mode);
+  gtk_toggle_button_set_active (
+      GTK_TOGGLE_BUTTON (impl->view_mode_toggle_button),
+      view_mode == VIEW_MODE_ICON);

  /* Creating the target view */
  if (view_mode == VIEW_MODE_ICON)
    {
+      if (!impl->icon_view_scale_hbox)
+        {
+          icon_view_scale_create (impl);
+          gtk_box_pack_end (
+              GTK_BOX (impl->browse_path_bar_hbox),
+              impl->icon_view_scale_hbox,
+              FALSE, FALSE, 0);
+        }
+
      create_browse_files_icon_view (impl);
      impl->browse_files_current_view = impl->browse_files_icon_view;
      old_view = impl->browse_files_tree_view;
@ -5246,6 +5257,7 @@ view_mode_set (GtkFileChooserDefault *impl, ViewMode view_mode)
      impl->browse_files_icon_view = NULL;
      impl->list_icon_renderer = NULL;
      impl->list_name_renderer = NULL;
+      if (impl->icon_view_scale_hbox)
        gtk_widget_hide (impl->icon_view_scale_hbox);
    }
  else
@ -5264,12 +5276,14 @@ view_mode_set (GtkFileChooserDefault *impl, ViewMode view_mode)
  browse_files_center_selected_row (impl);
 }

-/* Callback used when view mode combo box active item is changed */
+/* Callback used when the view mode toggle button is toggled. */
 static void
-view_mode_combo_box_changed_cb (GtkComboBox *combo,
+view_mode_toggle_button_toggled_cb (GtkToggleButton *toggle,
                                GtkFileChooserDefault *impl)
 {
-  ViewMode target = gtk_combo_box_get_active (combo);
+  ViewMode target = gtk_toggle_button_get_active (toggle)
+                    ? VIEW_MODE_ICON
+                    : VIEW_MODE_LIST;

  view_mode_set (impl, target);
 }
@ -5698,20 +5712,15 @@ location_button_toggled_cb (GtkToggleButton *toggle,
  location_mode_set (impl, new_mode, FALSE);
 }

-/* Creates a combo box with two items: List View and Icon View. */
+/* Creates the view mode toggle. */
 static void
-view_mode_combo_box_create (GtkFileChooserDefault *impl)
+view_mode_toggle_button_create (GtkFileChooserDefault *impl)
 {
-  impl->view_mode_combo_box = gtk_combo_box_text_new ();
-  gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT(impl->view_mode_combo_box),
-                                  _("List View")); /* VIEW_MODE_LIST */
-  gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT(impl->view_mode_combo_box),
-                                  _("Icon View")); /* VIEW_MODE_ICON */
-  gtk_combo_box_set_active (GTK_COMBO_BOX(impl->view_mode_combo_box),
-                            VIEW_MODE_LIST);
+  impl->view_mode_toggle_button =
+    gtk_toggle_button_new_with_label (_("Icon View"));

-  g_signal_connect (impl->view_mode_combo_box, "changed",
-                    G_CALLBACK (view_mode_combo_box_changed_cb), impl);
+  g_signal_connect (impl->view_mode_toggle_button, "toggled",
+                    G_CALLBACK (view_mode_toggle_button_toggled_cb), impl);
 }

 /* Creates a hscale for the icon view. */
@ -5719,46 +5728,48 @@ static void
 icon_view_scale_create (GtkFileChooserDefault *impl)
 {
  GtkObject *adj;
+  GtkWidget *zoom_icon;
  GtkWidget *image;

  impl->icon_view_scale_hbox = gtk_hbox_new (FALSE, 12);

-  impl->icon_view_scale_zoom_out_icon = gtk_event_box_new ();
-  gtk_event_box_set_visible_window (GTK_EVENT_BOX (impl->icon_view_scale_zoom_out_icon), FALSE);
+  zoom_icon = gtk_event_box_new ();
+  gtk_event_box_set_visible_window (GTK_EVENT_BOX (zoom_icon), FALSE);
  image = gtk_image_new_from_stock (GTK_STOCK_ZOOM_OUT, GTK_ICON_SIZE_BUTTON);
-  gtk_container_add (GTK_CONTAINER (impl->icon_view_scale_zoom_out_icon), image);
+  gtk_container_add (GTK_CONTAINER (zoom_icon), image);
  gtk_widget_show (image);
-  g_object_set_data (G_OBJECT (impl->icon_view_scale_zoom_out_icon),
+  g_object_set_data (G_OBJECT (zoom_icon),
                     "gtk-file-chooser-zoom-direction",
                     GINT_TO_POINTER (-1));
-  gtk_widget_set_tooltip_text (impl->icon_view_scale_zoom_out_icon, _("Zoom out"));
-  g_signal_connect (impl->icon_view_scale_zoom_out_icon, "button-press-event",
+  gtk_widget_set_tooltip_text (zoom_icon, _("Zoom out"));
+  g_signal_connect (zoom_icon, "button-press-event",
                    G_CALLBACK (icon_view_zoom_button_press_cb), impl);
-  gtk_size_group_add_widget (impl->browse_path_bar_size_group, impl->icon_view_scale_zoom_out_icon);
-  gtk_box_pack_start (GTK_BOX (impl->icon_view_scale_hbox), impl->icon_view_scale_zoom_out_icon, FALSE, FALSE, 0);
-  gtk_widget_show (impl->icon_view_scale_zoom_out_icon);
+  gtk_size_group_add_widget (impl->browse_path_bar_size_group, zoom_icon);
+  gtk_box_pack_start (GTK_BOX (impl->icon_view_scale_hbox), zoom_icon, FALSE, FALSE, 0);
+  gtk_widget_show (zoom_icon);

-  adj = gtk_adjustment_new (32, 32, 256, 16, 16, 0);
+  adj = gtk_adjustment_new (impl->icon_view_icon_size,
+                            32, 256, 16, 16, 0);
  impl->icon_view_scale = gtk_hscale_new (GTK_ADJUSTMENT (adj));
  gtk_scale_set_draw_value (GTK_SCALE (impl->icon_view_scale), FALSE);
  gtk_widget_set_size_request (impl->icon_view_scale, 100, -1);
  gtk_box_pack_start (GTK_BOX (impl->icon_view_scale_hbox), impl->icon_view_scale, FALSE, FALSE, 0);
  gtk_widget_show (impl->icon_view_scale);

-  impl->icon_view_scale_zoom_in_icon = gtk_event_box_new ();
-  gtk_event_box_set_visible_window (GTK_EVENT_BOX (impl->icon_view_scale_zoom_in_icon), FALSE);
+  zoom_icon = gtk_event_box_new ();
+  gtk_event_box_set_visible_window (GTK_EVENT_BOX (zoom_icon), FALSE);
  image = gtk_image_new_from_stock (GTK_STOCK_ZOOM_IN, GTK_ICON_SIZE_BUTTON);
-  gtk_container_add (GTK_CONTAINER (impl->icon_view_scale_zoom_in_icon), image);
+  gtk_container_add (GTK_CONTAINER (zoom_icon), image);
  gtk_widget_show (image);
-  g_object_set_data (G_OBJECT (impl->icon_view_scale_zoom_in_icon),
+  g_object_set_data (G_OBJECT (zoom_icon),
                     "gtk-file-chooser-zoom-direction",
                     GINT_TO_POINTER (1));
-  gtk_widget_set_tooltip_text (impl->icon_view_scale_zoom_in_icon, _("Zoom in"));
-  g_signal_connect (impl->icon_view_scale_zoom_in_icon, "button-press-event",
+  gtk_widget_set_tooltip_text (zoom_icon, _("Zoom in"));
+  g_signal_connect (zoom_icon, "button-press-event",
                    G_CALLBACK (icon_view_zoom_button_press_cb), impl);
-  gtk_size_group_add_widget (impl->browse_path_bar_size_group, impl->icon_view_scale_zoom_in_icon);
-  gtk_box_pack_start (GTK_BOX (impl->icon_view_scale_hbox), impl->icon_view_scale_zoom_in_icon, FALSE, FALSE, 0);
-  gtk_widget_show (impl->icon_view_scale_zoom_in_icon);
+  gtk_size_group_add_widget (impl->browse_path_bar_size_group, zoom_icon);
+  gtk_box_pack_start (GTK_BOX (impl->icon_view_scale_hbox), zoom_icon, FALSE, FALSE, 0);
+  gtk_widget_show (zoom_icon);

  g_signal_connect (impl->icon_view_scale, "value-changed",
                    G_CALLBACK (icon_view_scale_value_changed_cb), impl);
@ -5883,9 +5894,9 @@ path_bar_widgets_create (GtkFileChooserDefault *impl)
  impl->browse_path_bar_size_group = gtk_size_group_new (GTK_SIZE_GROUP_VERTICAL);
  gtk_size_group_set_ignore_hidden (impl->browse_path_bar_size_group, FALSE);

-  /* View mode combo box */
-  view_mode_combo_box_create (impl);
-  gtk_box_pack_start (GTK_BOX (impl->browse_path_bar_hbox), impl->view_mode_combo_box, FALSE, FALSE, 0);
+  /* View mode selector */
+  view_mode_toggle_button_create (impl);
+  gtk_box_pack_start (GTK_BOX (impl->browse_path_bar_hbox), impl->view_mode_toggle_button, FALSE, FALSE, 0);

  /* Location button */
  location_button_create (impl);
@ -5908,10 +5919,6 @@ path_bar_widgets_create (GtkFileChooserDefault *impl)
  /* Widgets for special modes (recently-used in Open mode, Search mode) */
  special_mode_widgets_create (impl);

-  /* Icon view scale */
-  icon_view_scale_create (impl);
-  gtk_box_pack_end (GTK_BOX (impl->browse_path_bar_hbox), impl->icon_view_scale_hbox, FALSE, FALSE, 0);
-
  /* Create Folder */
  impl->browse_new_folder_button = gtk_button_new_with_mnemonic (_("Create Fo_lder"));
  g_signal_connect (impl->browse_new_folder_button, "clicked",
@ -6477,9 +6484,9 @@ update_appearance (GtkFileChooserDefault *impl)

  if (impl->action == GTK_FILE_CHOOSER_ACTION_OPEN ||
      impl->action == GTK_FILE_CHOOSER_ACTION_SAVE)
-    gtk_widget_show (impl->view_mode_combo_box);
+    gtk_widget_show (impl->view_mode_toggle_button);
  else
-    gtk_widget_hide (impl->view_mode_combo_box);
+    gtk_widget_hide (impl->view_mode_toggle_button);

  if (impl->location_entry)
    _gtk_file_chooser_entry_set_action (GTK_FILE_CHOOSER_ENTRY (impl->location_entry), impl->action);
@ -7043,6 +7050,8 @@ settings_load (GtkFileChooserDefault *impl)

  location_mode_set (impl, location_mode, TRUE);

+  if (impl->icon_view_scale)
+    {
      g_signal_handlers_block_by_func (impl->icon_view_scale,
                                       G_CALLBACK (icon_view_scale_value_changed_cb),
                                       impl);
@ -7050,6 +7059,7 @@ settings_load (GtkFileChooserDefault *impl)
      g_signal_handlers_unblock_by_func (impl->icon_view_scale,
                                         G_CALLBACK (icon_view_scale_value_changed_cb),
                                         impl);
+    }

  view_mode_set (impl, view_mode);

--- a/gtk/gtkfilechooserprivate.h
+++ b/gtk/gtkfilechooserprivate.h
@ -227,11 +227,9 @@ struct _GtkFileChooserDefault
  GtkWidget *extra_align;
  GtkWidget *extra_widget;

-  GtkWidget *view_mode_combo_box;
+  GtkWidget *view_mode_toggle_button;
  GtkWidget *icon_view_scale_hbox;
  GtkWidget *icon_view_scale;
-  GtkWidget *icon_view_scale_zoom_in_icon;
-  GtkWidget *icon_view_scale_zoom_out_icon;
  guint icon_view_scale_timeout_id;
  guint icon_view_scale_visible_timeout_id;
  guint icon_view_scale_after_layout_id;
--- a/gtk/gtkfontbutton.c
+++ b/gtk/gtkfontbutton.c
@ -889,7 +889,8 @@ gtk_font_button_update_font_info (GtkFontButton *font_button)
  if (style == NULL || !g_ascii_strcasecmp (style, "Regular"))
    family_style = g_strdup (family);
  else
-    family_style = g_strdup_printf ("%s %s", family, style);
+    family_style = g_strdup_printf ("%s %s", family,
+                                    _gtk_font_style_name_translate (style));

  gtk_label_set_text (GTK_LABEL (font_button->priv->font_label), family_style);

--- a/gtk/gtkfontsel.c
+++ b/gtk/gtkfontsel.c
@ -76,6 +76,91 @@

 #define DEFAULT_FONT_NAME "Sans 10"

+#ifdef ENABLE_NLS
+/* Pango uses these standard English names for common font faces.
+ * Keep the msgids explicit for gettext, but only translate exact matches:
+ * font-specific face names must remain untouched.
+ */
+#define FONT_STYLE_ULTRA_LIGHT  N_("Ultra-Light")
+#define FONT_STYLE_LIGHT        N_("Light")
+#define FONT_STYLE_MEDIUM       N_("Medium")
+#define FONT_STYLE_NORMAL       N_("Normal")
+#define FONT_STYLE_REGULAR      N_("Regular")
+#define FONT_STYLE_ITALIC       N_("Italic")
+#define FONT_STYLE_OBLIQUE      N_("Oblique")
+#define FONT_STYLE_SEMI_BOLD    N_("Semi-Bold")
+#define FONT_STYLE_BOLD         N_("Bold")
+#define FONT_STYLE_ULTRA_BOLD   N_("Ultra-Bold")
+#define FONT_STYLE_HEAVY        N_("Heavy")
+#define FONT_STYLE_BOLD_ITALIC  N_("Bold Italic")
+
+const gchar *
+_gtk_font_style_name_translate (const gchar *name)
+{
+  switch (name[0])
+    {
+    case 'B':
+      if (strcmp (name, FONT_STYLE_BOLD) == 0)
+        return _(FONT_STYLE_BOLD);
+      if (strcmp (name, FONT_STYLE_BOLD_ITALIC) == 0)
+        return _(FONT_STYLE_BOLD_ITALIC);
+      break;
+
+    case 'H':
+      if (strcmp (name, FONT_STYLE_HEAVY) == 0)
+        return _(FONT_STYLE_HEAVY);
+      break;
+
+    case 'I':
+      if (strcmp (name, FONT_STYLE_ITALIC) == 0)
+        return _(FONT_STYLE_ITALIC);
+      break;
+
+    case 'L':
+      if (strcmp (name, FONT_STYLE_LIGHT) == 0)
+        return _(FONT_STYLE_LIGHT);
+      break;
+
+    case 'M':
+      if (strcmp (name, FONT_STYLE_MEDIUM) == 0)
+        return _(FONT_STYLE_MEDIUM);
+      break;
+
+    case 'N':
+      if (strcmp (name, FONT_STYLE_NORMAL) == 0)
+        return _(FONT_STYLE_NORMAL);
+      break;
+
+    case 'O':
+      if (strcmp (name, FONT_STYLE_OBLIQUE) == 0)
+        return _(FONT_STYLE_OBLIQUE);
+      break;
+
+    case 'R':
+      if (strcmp (name, FONT_STYLE_REGULAR) == 0)
+        return _(FONT_STYLE_REGULAR);
+      break;
+
+    case 'S':
+      if (strcmp (name, FONT_STYLE_SEMI_BOLD) == 0)
+        return _(FONT_STYLE_SEMI_BOLD);
+      break;
+
+    case 'U':
+      if (strcmp (name, FONT_STYLE_ULTRA_LIGHT) == 0)
+        return _(FONT_STYLE_ULTRA_LIGHT);
+      if (strcmp (name, FONT_STYLE_ULTRA_BOLD) == 0)
+        return _(FONT_STYLE_ULTRA_BOLD);
+      break;
+
+    default:
+      break;
+    }
+
+  return name;
+}
+#endif /* ENABLE_NLS */
+
 /* This is the initial and maximum height of the preview entry (it expands
   when large font sizes are selected). Initial height is also the minimum. */
 #define INITIAL_PREVIEW_HEIGHT 44
@ -869,7 +954,7 @@ gtk_font_selection_show_available_styles (GtkFontSelection *fontsel)
      gtk_list_store_append (model, &iter);
      gtk_list_store_set (model, &iter,
 			  FACE_COLUMN, faces[i],
-			  FACE_NAME_COLUMN, str,
+			  FACE_NAME_COLUMN, _gtk_font_style_name_translate (str),
 			  -1);

      if (i == 0)
--- a/gtk/gtkicontheme.c
+++ b/gtk/gtkicontheme.c
@ -2945,6 +2945,10 @@ icon_info_ensure_scale_and_pixbuf (GtkIconInfo  *icon_info,

              if (mime_type && strcmp (mime_type, "image/svg+xml") == 0)
                is_svg = TRUE;
+#ifdef G_OS_WIN32
+              else if (content_type && strcmp (content_type, ".svg") == 0)
+                is_svg = TRUE;
+#endif
            }

          g_object_unref (file_info);
--- a/gtk/gtkimmodule.c
+++ b/gtk/gtkimmodule.c
@ -309,11 +309,186 @@ add_builtin_module (const gchar             *module_name,
  return module;
 }

+/*
+ * Keep IM module parsing independent of Pango's deprecated helpers.
+ */
+
+/*
+ * Use unlocked input for the privately owned module-cache stream.
+ */
+#if defined(HAVE_GETC_UNLOCKED)
+#define GTK_IM_MODULE_GETC(stream) getc_unlocked (stream)
+#elif defined(HAVE__GETC_NOLOCK)
+#define GTK_IM_MODULE_GETC(stream) _getc_nolock (stream)
+#else
+#define GTK_IM_MODULE_GETC(stream) getc (stream)
+#endif
+
+static gchar *
+gtk_im_module_scan_string (const gchar **pos)
+{
+  const gchar *p;
+  const gchar *q;
+  gchar *result;
+  gchar *out;
+  gsize len;
+
+  p = *pos;
+
+  while (g_ascii_isspace (*p))
+    p++;
+
+  if (*p != '"')
+    return NULL;
+
+  p++;
+  q = p;
+  len = 0;
+
+  while (*q && *q != '"')
+    {
+      if (*q == '\\')
+        {
+          q++;
+
+          if (!*q)
+            return NULL;
+        }
+
+      q++;
+      len++;
+    }
+
+  if (*q != '"')
+    return NULL;
+
+  result = g_malloc (len + 1);
+  out = result;
+
+  while (p < q)
+    {
+      gchar c;
+
+      c = *p++;
+
+      if (c == '\\')
+        {
+          c = *p++;
+
+          switch (c)
+            {
+            case 'b': c = '\b'; break;
+            case 'f': c = '\f'; break;
+            case 'n': c = '\n'; break;
+            case 'r': c = '\r'; break;
+            case 't': c = '\t'; break;
+            case 'v': c = '\v'; break;
+            default:             break;
+            }
+        }
+
+      *out++ = c;
+    }
+
+  *out = '\0';
+  *pos = q + 1;
+
+  return result;
+}
+
+static gboolean
+gtk_im_module_skip_space (const gchar **pos)
+{
+  while (g_ascii_isspace (**pos))
+    (*pos)++;
+
+  return **pos != '\0';
+}
+
+static gint
+gtk_im_module_read_line (FILE    *stream,
+                         GString *str)
+{
+  gboolean escaped;
+  gboolean comment;
+  gint n_read;
+  gint lines;
+  gint c;
+  gint next_c;
+
+  escaped = FALSE;
+  comment = FALSE;
+  n_read = 0;
+  lines = 1;
+
+  g_string_truncate (str, 0);
+
+  while (TRUE)
+    {
+      c = GTK_IM_MODULE_GETC (stream);
+
+      if (c == EOF)
+        {
+          if (escaped)
+            g_string_append_c (str, '\\');
+
+          break;
+        }
+
+      n_read++;
+
+      if (c == '\r' || c == '\n')
+        {
+          next_c = GTK_IM_MODULE_GETC (stream);
+
+          if (next_c != EOF &&
+              !((c == '\r' && next_c == '\n') ||
+                (c == '\n' && next_c == '\r')))
+            ungetc (next_c, stream);
+
+          if (escaped)
+            {
+              escaped = FALSE;
+              lines++;
+              continue;
+            }
+
+          break;
+        }
+
+      if (escaped)
+        {
+          escaped = FALSE;
+
+          if (c == '#')
+            g_string_append_c (str, '#');
+          else
+            {
+              g_string_append_c (str, '\\');
+              g_string_append_c (str, c);
+            }
+        }
+      else if (!comment)
+        {
+          if (c == '#')
+            comment = TRUE;
+          else if (c == '\\')
+            escaped = TRUE;
+          else
+            g_string_append_c (str, c);
+        }
+    }
+
+
+  return n_read > 0 ? lines : 0;
+}
+
+#undef GTK_IM_MODULE_GETC
+
 static void
 gtk_im_module_initialize (void)
 {
  GString *line_buf = g_string_new (NULL);
-  GString *tmp_buf = g_string_new (NULL);
  gchar *filename = gtk_rc_get_im_module_file();
  FILE *file;
  gboolean have_error = FALSE;
@ -387,18 +562,17 @@ gtk_im_module_initialize (void)
       * we allow no file at all.
       */
      g_string_free (line_buf, TRUE);
-      g_string_free (tmp_buf, TRUE);
      g_free (filename);
      return;
    }

-  while (!have_error && pango_read_line (file, line_buf))
+  while (!have_error && gtk_im_module_read_line (file, line_buf))
    {
      const char *p;

      p = line_buf->str;

-      if (!pango_skip_space (&p))
+      if (!gtk_im_module_skip_space (&p))
 	{
 	  /* Blank line marking the end of a module
 	   */
@ -417,16 +591,16 @@ gtk_im_module_initialize (void)
          /* Read a module location
           */
          module = g_object_new (GTK_TYPE_IM_MODULE, NULL);
+          module->path = gtk_im_module_scan_string (&p);

-	  if (!pango_scan_string (&p, tmp_buf) ||
-	      pango_skip_space (&p))
+          if (!module->path || gtk_im_module_skip_space (&p))
            {
              g_warning ("Error parsing context info in '%s'\n  %s",
                         filename, line_buf->str);
              have_error = TRUE;
+              continue;
            }

-	  module->path = g_strdup (tmp_buf->str);
 #ifdef G_OS_WIN32
          correct_libdir_prefix (&module->path);
 #endif
@ -438,36 +612,37 @@ gtk_im_module_initialize (void)

 	  /* Read information about a context type
 	   */
-	  if (!pango_scan_string (&p, tmp_buf))
+          info->context_id = gtk_im_module_scan_string (&p);
+          if (!info->context_id)
            goto context_error;
-	  info->context_id = g_strdup (tmp_buf->str);

-	  if (!pango_scan_string (&p, tmp_buf))
+          info->context_name = gtk_im_module_scan_string (&p);
+          if (!info->context_name)
            goto context_error;
-	  info->context_name = g_strdup (tmp_buf->str);

-	  if (!pango_scan_string (&p, tmp_buf))
+          info->domain = gtk_im_module_scan_string (&p);
+          if (!info->domain)
            goto context_error;
-	  info->domain = g_strdup (tmp_buf->str);

-	  if (!pango_scan_string (&p, tmp_buf))
+          info->domain_dirname = gtk_im_module_scan_string (&p);
+          if (!info->domain_dirname)
            goto context_error;
-	  info->domain_dirname = g_strdup (tmp_buf->str);
 #ifdef G_OS_WIN32
 	  correct_localedir_prefix ((char **) &info->domain_dirname);
 #endif

-	  if (!pango_scan_string (&p, tmp_buf))
+          info->default_locales = gtk_im_module_scan_string (&p);
+          if (!info->default_locales)
            goto context_error;
-	  info->default_locales = g_strdup (tmp_buf->str);

-	  if (pango_skip_space (&p))
+	  if (gtk_im_module_skip_space (&p))
 	    goto context_error;

 	  infos = g_slist_prepend (infos, info);
 	  continue;

 	context_error:
+	  free_info (info);
 	  g_warning ("Error parsing context info in '%s'\n  %s",
 		     filename, line_buf->str);
 	  have_error = TRUE;
@ -491,7 +666,6 @@ gtk_im_module_initialize (void)

  fclose (file);
  g_string_free (line_buf, TRUE);
-  g_string_free (tmp_buf, TRUE);
  g_free (filename);
 }

--- a/gtk/gtkmodules.c
+++ b/gtk/gtkmodules.c
@ -192,7 +192,7 @@ _gtk_get_module_path (const gchar *type)
  result = g_new (gchar *, count * 5 + 1);

  count = 0;
-  for (path = get_module_path (); *path; path++)
+  for (path = paths; *path; path++)
    {
      gint use_version, use_host;

--- a/gtk/gtkprintunixdialog.c
+++ b/gtk/gtkprintunixdialog.c
@ -796,7 +796,9 @@ printer_status_cb (GtkPrintBackend    *backend,
  /* When the pause state change then we need to update sensitive property
   * of GTK_RESPONSE_OK button inside of selected_printer_changed function. */
  selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->printer_treeview));
+  priv->internal_printer_change = TRUE;
  selected_printer_changed (selection, dialog);
+  priv->internal_printer_change = FALSE;

  if (gtk_print_backend_printer_list_is_done (backend) &&
      gtk_printer_is_default (printer) &&
--- a/gtk/gtkprivate.h
+++ b/gtk/gtkprivate.h
@ -134,6 +134,13 @@ const gchar *_gtk_get_data_prefix ();

 #endif /* G_OS_WIN32 */

+#ifdef ENABLE_NLS
+G_GNUC_INTERNAL
+const gchar *_gtk_font_style_name_translate (const gchar *name);
+#else
+#define _gtk_font_style_name_translate(name) (name)
+#endif
+
 gboolean _gtk_fnmatch (const char *pattern,
 		       const char *string,
 		       gboolean    no_leading_period);
--- a/gtk/gtkquartz.c
+++ b/gtk/gtkquartz.c
@ -67,7 +67,10 @@ _gtk_quartz_create_image_from_pixbuf (GdkPixbuf *pixbuf)
    }
  [nsimage lockFocus];

+  if (gdk_quartz_osx_version () < GDK_OSX_YOSEMITE)
    context = (CGContextRef)[[NSGraphicsContext currentContext] graphicsPort];
+  else
+    context = [[NSGraphicsContext currentContext] CGContext];
  CGContextDrawImage (context, CGRectMake (0, 0, pixbuf_width, pixbuf_height), image);

  [nsimage unlockFocus];
--- a/gtk/gtkrc.c
+++ b/gtk/gtkrc.c
@ -808,6 +808,8 @@ gtk_rc_parse_named (GtkRcContext *context,
  gchar *path = NULL;
  const gchar *home_dir;
  gchar *subpath;
+  const gchar * const *xdg_data_dirs;
+  gint i;

  if (type)
    subpath = g_strconcat ("gtk-2.0-", type,
@ -829,6 +831,22 @@ gtk_rc_parse_named (GtkRcContext *context,
 	}
    }

+  if (!path)
+    {
+      xdg_data_dirs = g_get_system_data_dirs ();
+      for (i = 0; xdg_data_dirs[i]; i++)
+        {
+          path = g_build_filename (xdg_data_dirs[i], "themes", name, subpath, NULL);
+          if (g_file_test (path, G_FILE_TEST_EXISTS))
+            break;
+          else
+            {
+              g_free (path);
+              path = NULL;
+            }
+        }
+    }
+
  if (!path)
    {
      gchar *theme_dir = gtk_rc_get_theme_dir ();
--- a/gtk/gtktooltips.h
+++ b/gtk/gtktooltips.h
@ -74,7 +74,11 @@ struct _GtkTooltips
  guint   have_grab : 1;
  guint   use_sticky_delay : 1;
  gint	  timer_tag;
-  GTimeVal last_popdown;
+  struct
+  {
+    glong tv_sec;
+    glong tv_usec;
+  } last_popdown;
 };

 struct _GtkTooltipsClass
--- a/gtk/gtktrayicon.h
+++ b/gtk/gtktrayicon.h
@ -46,12 +46,12 @@ struct _GtkTrayIconClass
 {
  GtkPlugClass parent_class;

-  void (*__gtk_reserved1);
-  void (*__gtk_reserved2);
-  void (*__gtk_reserved3);
-  void (*__gtk_reserved4);
-  void (*__gtk_reserved5);
-  void (*__gtk_reserved6);
+  void (*__gtk_reserved1) (void);
+  void (*__gtk_reserved2) (void);
+  void (*__gtk_reserved3) (void);
+  void (*__gtk_reserved4) (void);
+  void (*__gtk_reserved5) (void);
+  void (*__gtk_reserved6) (void);
 };

 GType          gtk_tray_icon_get_type         (void) G_GNUC_CONST;
--- a/gtk/makegtkalias.pl
+++ b/gtk/makegtkalias.pl
@ -14,7 +14,7 @@ print <<EOF;

 #include <glib.h>

-#ifdef G_HAVE_GNUC_VISIBILITY
+#if defined(G_HAVE_GNUC_VISIBILITY) && !defined(__APPLE__)

 EOF

--- a/gtk/queryimmodules.c
+++ b/gtk/queryimmodules.c
@ -159,9 +159,6 @@ query_module (const char *dir, const char *name, GString *contents)
 {
  void          (*list)   (const GtkIMContextInfo ***contexts,
                           guint                    *n_contexts);
-  G_GNUC_UNUSED void          (*init)   (GTypeModule              *type_module);
-  G_GNUC_UNUSED void          (*exit)   (void);
-  G_GNUC_UNUSED GtkIMContext *(*create) (const gchar             *context_id);

  gpointer list_ptr;
  gpointer init_ptr;
@ -196,9 +193,6 @@ query_module (const char *dir, const char *name, GString *contents)
      int i;

      list = list_ptr;
-      init = init_ptr;
-      exit = exit_ptr;
-      create = create_ptr;

      print_escaped (contents, path);
      g_string_append_c (contents, '\n');
--- a/gtk/tests/builder.c
+++ b/gtk/tests/builder.c
@ -132,7 +132,7 @@ static int object = 0;
 static int object_after = 0;

 void /* exported for GtkBuilder */
-signal_normal (GtkWindow *window, GParamSpec spec)
+signal_normal (GtkWindow *window, GParamSpec *spec)
 {
  g_assert (GTK_IS_WINDOW (window));
  g_assert (normal == 0);
@ -142,7 +142,7 @@ signal_normal (GtkWindow *window, GParamSpec spec)
 }

 void /* exported for GtkBuilder */
-signal_after (GtkWindow *window, GParamSpec spec)
+signal_after (GtkWindow *window, GParamSpec *spec)
 {
  g_assert (GTK_IS_WINDOW (window));
  g_assert (normal == 1);
@ -152,7 +152,7 @@ signal_after (GtkWindow *window, GParamSpec spec)
 }

 void /* exported for GtkBuilder */
-signal_object (GtkButton *button, GParamSpec spec)
+signal_object (GtkButton *button, GParamSpec *spec)
 {
  g_assert (GTK_IS_BUTTON (button));
  g_assert (object == 0);
@ -162,7 +162,7 @@ signal_object (GtkButton *button, GParamSpec spec)
 }

 void /* exported for GtkBuilder */
-signal_object_after (GtkButton *button, GParamSpec spec)
+signal_object_after (GtkButton *button, GParamSpec *spec)
 {
  g_assert (GTK_IS_BUTTON (button));
  g_assert (object == 1);
@ -172,28 +172,28 @@ signal_object_after (GtkButton *button, GParamSpec spec)
 }

 void /* exported for GtkBuilder */
-signal_first (GtkButton *button, GParamSpec spec)
+signal_first (GtkButton *button, GParamSpec *spec)
 {
  g_assert (normal == 0);
  normal = 10;
 }

 void /* exported for GtkBuilder */
-signal_second (GtkButton *button, GParamSpec spec)
+signal_second (GtkButton *button, GParamSpec *spec)
 {
  g_assert (normal == 10);
  normal = 20;
 }

 void /* exported for GtkBuilder */
-signal_extra (GtkButton *button, GParamSpec spec)
+signal_extra (GtkButton *button, GParamSpec *spec)
 {
  g_assert (normal == 20);
  normal = 30;
 }

 void /* exported for GtkBuilder */
-signal_extra2 (GtkButton *button, GParamSpec spec)
+signal_extra2 (GtkButton *button, GParamSpec *spec)
 {
  g_assert (normal == 30);
  normal = 40;
--- a/modules/other/gail/Makefile.am
+++ b/modules/other/gail/Makefile.am
@ -72,6 +72,7 @@ libgailincludedir=$(includedir)/gail-1.0/gail

 gail_private_h_sources =		\
 	gail.h				\
+	gailvalue.h			\
 	gailadjustment.h		\
 	gailarrow.h			\
 	gailbooleancell.h		\
--- a/modules/other/gail/gailadjustment.c
+++ b/modules/other/gail/gailadjustment.c
@ -22,6 +22,7 @@
 #include <string.h>
 #include <gtk/gtk.h>
 #include "gailadjustment.h"
+#include "gailvalue.h"

 static void	 gail_adjustment_class_init        (GailAdjustmentClass *klass);

@ -32,16 +33,25 @@ static void	 gail_adjustment_real_initialize   (AtkObject	        *obj,

 static void	 atk_value_interface_init          (AtkValueIface       *iface);

-static void	 gail_adjustment_get_current_value (AtkValue            *obj,
-                                                    GValue              *value);
-static void	 gail_adjustment_get_maximum_value (AtkValue            *obj,
-                                                    GValue              *value);
-static void	 gail_adjustment_get_minimum_value (AtkValue            *obj,
-                                                    GValue              *value);
-static void	 gail_adjustment_get_minimum_increment (AtkValue        *obj,
-                                                    GValue              *value);
-static gboolean	 gail_adjustment_set_current_value (AtkValue            *obj,
-                                                    const GValue        *value);
+
+#ifdef HAVE_ATK_VALUE_2_12
+GAIL_DEFINE_ADJUSTMENT_VALUE_READERS (
+  gail_adjustment, GAIL_ADJUSTMENT (obj)->adjustment,
+  adjustment->value, adjustment->upper)
+GAIL_DEFINE_ADJUSTMENT_VALUE_INCREMENT (
+  gail_adjustment, GAIL_ADJUSTMENT (obj)->adjustment,
+  GAIL_VALUE_MINIMUM_INCREMENT (adjustment))
+
+static void
+gail_adjustment_set_value (AtkValue *obj, gdouble value)
+{
+  GtkAdjustment *adjustment;
+
+  adjustment = GAIL_ADJUSTMENT (obj)->adjustment;
+  if (adjustment != NULL)
+    gtk_adjustment_set_value (adjustment, value);
+}
+#endif

 static void      gail_adjustment_destroyed         (GtkAdjustment       *adjustment,
                                                    GailAdjustment      *gail_adjustment);
@ -105,9 +115,15 @@ atk_value_interface_init (AtkValueIface *iface)
  iface->get_minimum_value = gail_adjustment_get_minimum_value;
  iface->get_minimum_increment = gail_adjustment_get_minimum_increment;
  iface->set_current_value = gail_adjustment_set_current_value;
+#ifdef HAVE_ATK_VALUE_2_12
+  iface->get_value_and_text = gail_adjustment_get_value_and_text;
+  iface->get_range = gail_adjustment_get_range;
+  iface->get_increment = gail_adjustment_get_increment;
+  iface->set_value = gail_adjustment_set_value;
+#endif
 }

-static void
+void
 gail_adjustment_get_current_value (AtkValue             *obj,
                                   GValue               *value)
 {
@ -127,7 +143,7 @@ gail_adjustment_get_current_value (AtkValue             *obj,
  g_value_set_double (value,current_value);
 }

-static void
+void
 gail_adjustment_get_maximum_value (AtkValue             *obj,
                                   GValue               *value)
 {
@ -147,7 +163,7 @@ gail_adjustment_get_maximum_value (AtkValue             *obj,
  g_value_set_double (value, maximum_value);
 }

-static void
+void
 gail_adjustment_get_minimum_value (AtkValue             *obj,
                                   GValue               *value)
 {
@ -167,48 +183,20 @@ gail_adjustment_get_minimum_value (AtkValue             *obj,
  g_value_set_double (value, minimum_value);
 }

-static void
-gail_adjustment_get_minimum_increment (AtkValue        *obj,
-                                       GValue          *value)
+void
+gail_adjustment_get_minimum_increment (AtkValue *obj, GValue *value)
 {
-  GtkAdjustment* adjustment;
-  gdouble minimum_increment;
+  GtkAdjustment *adjustment = GAIL_ADJUSTMENT (obj)->adjustment;

-  adjustment = GAIL_ADJUSTMENT (obj)->adjustment;
  if (adjustment == NULL)
-  {
-    /* State is defunct */
    return;
-  }
-
-  if (adjustment->step_increment != 0 &&
-      adjustment->page_increment != 0)
-    {
-      if (ABS (adjustment->step_increment) < ABS (adjustment->page_increment))
-        minimum_increment = adjustment->step_increment;
-      else
-        minimum_increment = adjustment->page_increment;
-    }
-  else if (adjustment->step_increment == 0 &&
-           adjustment->page_increment == 0)
-    {
-      minimum_increment = 0;
-    }
-  else if (adjustment->step_increment == 0)
-    {
-      minimum_increment = adjustment->page_increment;
-    }
-  else
-    {
-      minimum_increment = adjustment->step_increment;
-    }

  memset (value, 0, sizeof (GValue));
  g_value_init (value, G_TYPE_DOUBLE);
-  g_value_set_double (value, minimum_increment);
+  g_value_set_double (value, GAIL_VALUE_MINIMUM_INCREMENT (adjustment));
 }

-static gboolean
+gboolean
 gail_adjustment_set_current_value (AtkValue             *obj,
                                   const GValue         *value)
 {
--- a/modules/other/gail/gailadjustment.h
+++ b/modules/other/gail/gailadjustment.h
@ -50,6 +50,22 @@ struct _GailAdjustmentClass

 AtkObject *gail_adjustment_new (GtkAdjustment *adjustment);

+G_GNUC_INTERNAL void
+gail_adjustment_get_current_value (AtkValue *obj,
+                                   GValue   *value);
+G_GNUC_INTERNAL void
+gail_adjustment_get_maximum_value (AtkValue *obj,
+                                   GValue   *value);
+G_GNUC_INTERNAL void
+gail_adjustment_get_minimum_value (AtkValue *obj,
+                                   GValue   *value);
+G_GNUC_INTERNAL void
+gail_adjustment_get_minimum_increment (AtkValue *obj,
+                                       GValue   *value);
+G_GNUC_INTERNAL gboolean
+gail_adjustment_set_current_value (AtkValue     *obj,
+                                   const GValue *value);
+
 G_END_DECLS

 #endif /* __GAIL_ADJUSTMENT_H__ */
--- a/modules/other/gail/gailpaned.c
+++ b/modules/other/gail/gailpaned.c
@ -22,6 +22,7 @@
 #include <string.h>
 #include <gtk/gtk.h>
 #include "gailpaned.h"
+#include "gailvalue.h"

 static void         gail_paned_class_init          (GailPanedClass *klass);

@ -44,6 +45,35 @@ static void         gail_paned_get_minimum_value   (AtkValue       *obj,
 static gboolean     gail_paned_set_current_value   (AtkValue       *obj,
                                                    const GValue   *value);

+#ifdef HAVE_ATK_VALUE_2_12
+static void
+gail_paned_get_value_and_text (AtkValue *obj, gdouble *value, gchar **text)
+{
+  GtkWidget *widget = GTK_ACCESSIBLE (obj)->widget;
+
+  if (text != NULL)
+    *text = NULL;
+  if (value != NULL)
+    *value = widget != NULL
+           ? gtk_paned_get_position (GTK_PANED (widget)) : 0.0;
+}
+
+static AtkRange *
+gail_paned_get_range (AtkValue *obj)
+{
+  GtkWidget *widget = GTK_ACCESSIBLE (obj)->widget;
+  GtkPaned *paned;
+
+  if (widget == NULL)
+    return NULL;
+  paned = GTK_PANED (widget);
+  return atk_range_new (paned->min_position, paned->max_position, NULL);
+}
+
+GAIL_DEFINE_WIDGET_VALUE_SETTER (
+  gail_paned, GTK_PANED, gtk_paned_set_position, (gint) value)
+#endif
+
 G_DEFINE_TYPE_WITH_CODE (GailPaned, gail_paned, GAIL_TYPE_CONTAINER,
                         G_IMPLEMENT_INTERFACE (ATK_TYPE_VALUE, atk_value_interface_init))

@ -112,6 +142,11 @@ atk_value_interface_init (AtkValueIface *iface)
  iface->get_maximum_value = gail_paned_get_maximum_value;
  iface->get_minimum_value = gail_paned_get_minimum_value;
  iface->set_current_value = gail_paned_set_current_value;
+#ifdef HAVE_ATK_VALUE_2_12
+  iface->get_value_and_text = gail_paned_get_value_and_text;
+  iface->get_range = gail_paned_get_range;
+  iface->set_value = gail_paned_set_value;
+#endif
 }

 static void
--- a/modules/other/gail/gailprogressbar.c
+++ b/modules/other/gail/gailprogressbar.c
@ -26,6 +26,7 @@
 #include <gtk/gtk.h>

 #include "gailprogressbar.h"
+#include "gailvalue.h"
 #include "gailadjustment.h"

 static void	 gail_progress_bar_class_init        (GailProgressBarClass *klass);
@ -50,6 +51,13 @@ static void	 gail_progress_bar_get_minimum_value (AtkValue       *obj,
 static void      gail_progress_bar_value_changed     (GtkAdjustment  *adjustment,
                                                      gpointer       data);

+#ifdef HAVE_ATK_VALUE_2_12
+GAIL_DEFINE_ADJUSTMENT_VALUE_READERS (
+  gail_progress_bar,
+  GAIL_VALUE_ADJUSTMENT (GAIL_PROGRESS_BAR (obj)->adjustment),
+  adjustment->value, adjustment->upper)
+#endif
+
 G_DEFINE_TYPE_WITH_CODE (GailProgressBar, gail_progress_bar, GAIL_TYPE_WIDGET,
                         G_IMPLEMENT_INTERFACE (ATK_TYPE_VALUE, atk_value_interface_init))

@ -108,6 +116,10 @@ atk_value_interface_init (AtkValueIface *iface)
  iface->get_current_value = gail_progress_bar_get_current_value;
  iface->get_maximum_value = gail_progress_bar_get_maximum_value;
  iface->get_minimum_value = gail_progress_bar_get_minimum_value;
+#ifdef HAVE_ATK_VALUE_2_12
+  iface->get_value_and_text = gail_progress_bar_get_value_and_text;
+  iface->get_range = gail_progress_bar_get_range;
+#endif
 }

 static void
@ -125,7 +137,7 @@ gail_progress_bar_get_current_value (AtkValue   *obj,
     */
    return;

-  atk_value_get_current_value (ATK_VALUE (progress_bar->adjustment), value);
+  gail_adjustment_get_current_value (ATK_VALUE (progress_bar->adjustment), value);
 }

 static void
@ -143,7 +155,7 @@ gail_progress_bar_get_maximum_value (AtkValue   *obj,
     */
    return;

-  atk_value_get_maximum_value (ATK_VALUE (progress_bar->adjustment), value);
+  gail_adjustment_get_maximum_value (ATK_VALUE (progress_bar->adjustment), value);
 }

 static void
@ -161,7 +173,7 @@ gail_progress_bar_get_minimum_value (AtkValue    *obj,
     */
    return;

-  atk_value_get_minimum_value (ATK_VALUE (progress_bar->adjustment), value);
+  gail_adjustment_get_minimum_value (ATK_VALUE (progress_bar->adjustment), value);
 }

 static void
--- a/modules/other/gail/gailrange.c
+++ b/modules/other/gail/gailrange.c
@ -23,6 +23,7 @@
 #include <gtk/gtk.h>
 #include <gdk/gdkkeysyms.h>
 #include "gailrange.h"
+#include "gailvalue.h"
 #include "gailadjustment.h"
 #include "gail-private-macros.h"

@ -70,6 +71,28 @@ static gboolean   gail_range_set_description  (AtkAction       *action,
                                              gint            i,
                                              const gchar     *desc);

+#ifdef HAVE_ATK_VALUE_2_12
+#define GAIL_RANGE_ADJUSTMENT(obj)                                      \
+  (GTK_ACCESSIBLE (obj)->widget != NULL                                 \
+   ? GAIL_VALUE_ADJUSTMENT (GAIL_RANGE (obj)->adjustment) : NULL)
+#define GAIL_RANGE_UPPER(obj, adjustment)                               \
+  (gtk_range_get_restrict_to_fill_level (                               \
+     GTK_RANGE (GTK_ACCESSIBLE (obj)->widget))                           \
+   ? MIN ((adjustment)->upper - (adjustment)->page_size,                \
+          gtk_range_get_fill_level (                                    \
+            GTK_RANGE (GTK_ACCESSIBLE (obj)->widget)))                   \
+   : (adjustment)->upper - (adjustment)->page_size)
+
+GAIL_DEFINE_ADJUSTMENT_VALUE_READERS (
+  gail_range, GAIL_RANGE_ADJUSTMENT (obj), adjustment->value,
+  GAIL_RANGE_UPPER (obj, adjustment))
+GAIL_DEFINE_ADJUSTMENT_VALUE_INCREMENT (
+  gail_range, GAIL_RANGE_ADJUSTMENT (obj),
+  GAIL_VALUE_MINIMUM_INCREMENT (adjustment))
+GAIL_DEFINE_WIDGET_VALUE_SETTER (
+  gail_range, GTK_RANGE, gtk_range_set_value, value)
+#endif
+
 G_DEFINE_TYPE_WITH_CODE (GailRange, gail_range, GAIL_TYPE_WIDGET,
                         G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, atk_action_interface_init)
                         G_IMPLEMENT_INTERFACE (ATK_TYPE_VALUE, atk_value_interface_init))
@ -163,6 +186,12 @@ atk_value_interface_init (AtkValueIface *iface)
  iface->get_minimum_value = gail_range_get_minimum_value;
  iface->get_minimum_increment = gail_range_get_minimum_increment;
  iface->set_current_value = gail_range_set_current_value;
+#ifdef HAVE_ATK_VALUE_2_12
+  iface->get_value_and_text = gail_range_get_value_and_text;
+  iface->get_range = gail_range_get_range;
+  iface->get_increment = gail_range_get_increment;
+  iface->set_value = gail_range_set_value;
+#endif
 }

 static void
@ -180,7 +209,7 @@ gail_range_get_current_value (AtkValue		*obj,
     */
    return;

-  atk_value_get_current_value (ATK_VALUE (range->adjustment), value);
+  gail_adjustment_get_current_value (ATK_VALUE (range->adjustment), value);
 }

 static void
@ -201,7 +230,7 @@ gail_range_get_maximum_value (AtkValue		*obj,
     */
    return;

-  atk_value_get_maximum_value (ATK_VALUE (range->adjustment), value);
+  gail_adjustment_get_maximum_value (ATK_VALUE (range->adjustment), value);

  gtk_range = GTK_RANGE (gtk_accessible_get_widget (GTK_ACCESSIBLE (range)));
  g_return_if_fail (gtk_range);
@ -231,7 +260,7 @@ gail_range_get_minimum_value (AtkValue		*obj,
     */
    return;

-  atk_value_get_minimum_value (ATK_VALUE (range->adjustment), value);
+  gail_adjustment_get_minimum_value (ATK_VALUE (range->adjustment), value);
 }

 static void
@ -248,7 +277,7 @@ gail_range_get_minimum_increment (AtkValue *obj, GValue *value)
     */
    return;

-  atk_value_get_minimum_increment (ATK_VALUE (range->adjustment), value);
+  gail_adjustment_get_minimum_increment (ATK_VALUE (range->adjustment), value);
 }

 static gboolean	 gail_range_set_current_value (AtkValue		*obj,
@ -519,5 +548,3 @@ gail_range_set_description (AtkAction      *action,
  else
   return FALSE;
 }
-
-
--- a/modules/other/gail/gailscalebutton.c
+++ b/modules/other/gail/gailscalebutton.c
@ -21,6 +21,7 @@

 #include <gtk/gtk.h>
 #include "gailscalebutton.h"
+#include "gailvalue.h"
 #include "gailadjustment.h"
 #include "gail-private-macros.h"

@ -65,6 +66,24 @@ static void	gail_scale_button_get_minimum_increment (AtkValue       *obj,
 static gboolean	gail_scale_button_set_current_value     (AtkValue       *obj,
                                                         const GValue   *value);

+#ifdef HAVE_ATK_VALUE_2_12
+#define GAIL_SCALE_BUTTON_ADJUSTMENT(obj)                               \
+  (GTK_ACCESSIBLE (obj)->widget != NULL                                 \
+   ? gtk_scale_button_get_adjustment (                                  \
+       GTK_SCALE_BUTTON (GTK_ACCESSIBLE (obj)->widget)) : NULL)
+
+GAIL_DEFINE_ADJUSTMENT_VALUE_READERS (
+  gail_scale_button, GAIL_SCALE_BUTTON_ADJUSTMENT (obj),
+  gtk_scale_button_get_value (
+    GTK_SCALE_BUTTON (GTK_ACCESSIBLE (obj)->widget)),
+  adjustment->upper)
+GAIL_DEFINE_ADJUSTMENT_VALUE_INCREMENT (
+  gail_scale_button, GAIL_SCALE_BUTTON_ADJUSTMENT (obj),
+  adjustment->step_increment)
+GAIL_DEFINE_WIDGET_VALUE_SETTER (
+  gail_scale_button, GTK_SCALE_BUTTON, gtk_scale_button_set_value, value)
+#endif
+
 G_DEFINE_TYPE_WITH_CODE (GailScaleButton, gail_scale_button, GAIL_TYPE_BUTTON,
                         G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, atk_action_interface_init)
                         G_IMPLEMENT_INTERFACE (ATK_TYPE_VALUE, atk_value_interface_init));
@ -181,6 +200,12 @@ atk_value_interface_init (AtkValueIface *iface)
  iface->get_minimum_value = gail_scale_button_get_minimum_value;
  iface->get_minimum_increment = gail_scale_button_get_minimum_increment;
  iface->set_current_value = gail_scale_button_set_current_value;
+#ifdef HAVE_ATK_VALUE_2_12
+  iface->get_value_and_text = gail_scale_button_get_value_and_text;
+  iface->get_range = gail_scale_button_get_range;
+  iface->get_increment = gail_scale_button_get_increment;
+  iface->set_value = gail_scale_button_set_value;
+#endif
 }

 static void
@ -295,5 +320,3 @@ gail_scale_button_notify_gtk (GObject    *obj,
      GAIL_WIDGET_CLASS (gail_scale_button_parent_class)->notify_gtk (obj, pspec);
    }
 }
-
-
--- a/modules/other/gail/gailspinbutton.c
+++ b/modules/other/gail/gailspinbutton.c
@ -22,6 +22,7 @@
 #include <string.h>
 #include <gtk/gtk.h>
 #include "gailspinbutton.h"
+#include "gailvalue.h"
 #include "gailadjustment.h"
 #include "gail-private-macros.h"

@ -49,6 +50,19 @@ static gboolean  gail_spin_button_set_current_value (AtkValue       *obj,
 static void      gail_spin_button_value_changed     (GtkAdjustment  *adjustment,
                                                     gpointer       data);

+#ifdef HAVE_ATK_VALUE_2_12
+GAIL_DEFINE_ADJUSTMENT_VALUE_READERS (
+  gail_spin_button,
+  GAIL_VALUE_ADJUSTMENT (GAIL_SPIN_BUTTON (obj)->adjustment),
+  adjustment->value, adjustment->upper)
+GAIL_DEFINE_ADJUSTMENT_VALUE_INCREMENT (
+  gail_spin_button,
+  GAIL_VALUE_ADJUSTMENT (GAIL_SPIN_BUTTON (obj)->adjustment),
+  GAIL_VALUE_MINIMUM_INCREMENT (adjustment))
+GAIL_DEFINE_WIDGET_VALUE_SETTER (
+  gail_spin_button, GTK_SPIN_BUTTON, gtk_spin_button_set_value, value)
+#endif
+
 G_DEFINE_TYPE_WITH_CODE (GailSpinButton, gail_spin_button, GAIL_TYPE_ENTRY,
                         G_IMPLEMENT_INTERFACE (ATK_TYPE_VALUE, atk_value_interface_init))

@ -110,6 +124,12 @@ atk_value_interface_init (AtkValueIface *iface)
  iface->get_minimum_value = gail_spin_button_get_minimum_value;
  iface->get_minimum_increment = gail_spin_button_get_minimum_increment;
  iface->set_current_value = gail_spin_button_set_current_value;
+#ifdef HAVE_ATK_VALUE_2_12
+  iface->get_value_and_text = gail_spin_button_get_value_and_text;
+  iface->get_range = gail_spin_button_get_range;
+  iface->get_increment = gail_spin_button_get_increment;
+  iface->set_value = gail_spin_button_set_value;
+#endif
 }

 static void
@ -127,7 +147,7 @@ gail_spin_button_get_current_value (AtkValue       *obj,
     */
    return;

-  atk_value_get_current_value (ATK_VALUE (spin_button->adjustment), value);
+  gail_adjustment_get_current_value (ATK_VALUE (spin_button->adjustment), value);
 }

 static void
@ -145,7 +165,7 @@ gail_spin_button_get_maximum_value (AtkValue       *obj,
     */
    return;

-  atk_value_get_maximum_value (ATK_VALUE (spin_button->adjustment), value);
+  gail_adjustment_get_maximum_value (ATK_VALUE (spin_button->adjustment), value);
 }

 static void
@ -163,7 +183,7 @@ gail_spin_button_get_minimum_value (AtkValue       *obj,
     */
    return;

-  atk_value_get_minimum_value (ATK_VALUE (spin_button->adjustment), value);
+  gail_adjustment_get_minimum_value (ATK_VALUE (spin_button->adjustment), value);
 }

 static void
@ -180,7 +200,7 @@ gail_spin_button_get_minimum_increment (AtkValue *obj, GValue *value)
     */
    return;

-  atk_value_get_minimum_increment (ATK_VALUE (spin_button->adjustment), value);
+  gail_adjustment_get_minimum_increment (ATK_VALUE (spin_button->adjustment), value);
 }

 static gboolean
@ -198,7 +218,7 @@ gail_spin_button_set_current_value (AtkValue       *obj,
     */
    return FALSE;

-  return atk_value_set_current_value (ATK_VALUE (spin_button->adjustment), value);
+  return gail_adjustment_set_current_value (ATK_VALUE (spin_button->adjustment), value);
 }

 static void
@ -264,4 +284,3 @@ gail_spin_button_value_changed (GtkAdjustment    *adjustment,

  g_object_notify (G_OBJECT (spin_button), "accessible-value");
 }
-
--- a/modules/other/gail/gailvalue.h
+++ b/modules/other/gail/gailvalue.h
@ -0,0 +1,56 @@
+/* GAIL - The GNOME Accessibility Implementation Library
+ *
+ * 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.
+ */
+#ifndef __GAIL_VALUE_H__
+#define __GAIL_VALUE_H__
+
+#include <gtk/gtk.h>
+
+#define GAIL_VALUE_ADJUSTMENT(accessible) \
+  ((accessible) != NULL ? GAIL_ADJUSTMENT (accessible)->adjustment : NULL)
+#define GAIL_VALUE_MINIMUM_INCREMENT(a)                              \
+  ((a)->step_increment == 0.0 ? (a)->page_increment :                \
+   (a)->page_increment == 0.0 ? (a)->step_increment :                \
+   ABS ((a)->step_increment) < ABS ((a)->page_increment)             \
+   ? (a)->step_increment : (a)->page_increment)
+
+#ifdef HAVE_ATK_VALUE_2_12
+#define GAIL_DEFINE_ADJUSTMENT_VALUE_READERS(prefix, a_expr, value_expr, max_expr) \
+static void prefix##_get_value_and_text (AtkValue *obj, gdouble *value, gchar **text) \
+{                                                                            \
+  GtkAdjustment *adjustment = (a_expr);                                      \
+  if (text != NULL) *text = NULL;                                            \
+  if (value != NULL) *value = adjustment != NULL ? (value_expr) : 0.0;       \
+}                                                                            \
+static AtkRange *prefix##_get_range (AtkValue *obj)                          \
+{                                                                            \
+  GtkAdjustment *adjustment = (a_expr);                                      \
+  return adjustment != NULL                                                  \
+       ? atk_range_new (adjustment->lower, (max_expr), NULL) : NULL;         \
+}
+
+#define GAIL_DEFINE_ADJUSTMENT_VALUE_INCREMENT(prefix, a_expr, increment_expr) \
+static gdouble prefix##_get_increment (AtkValue *obj)                        \
+{                                                                            \
+  GtkAdjustment *adjustment = (a_expr);                                      \
+  return adjustment != NULL ? (increment_expr) : 0.0;                       \
+}
+
+#define GAIL_DEFINE_WIDGET_VALUE_SETTER(prefix, cast, setter, value_expr)    \
+static void prefix##_set_value (AtkValue *obj, gdouble value)                \
+{                                                                            \
+  GtkWidget *widget = GTK_ACCESSIBLE (obj)->widget;                          \
+  if (widget != NULL) setter (cast (widget), (value_expr));                  \
+}
+#endif
+
+#endif /* __GAIL_VALUE_H__ */
--- a/modules/other/gail/tests/Makefile.am
+++ b/modules/other/gail/tests/Makefile.am
@ -12,6 +12,8 @@ module_LTLIBRARIES = \
 	libferret.la
 endif

+noinst_HEADERS = testvalue.h
+
 noinst_LTLIBRARIES = 		\
 	libtestaction.la	\
 	libtestbutton.la	\
--- a/modules/other/gail/tests/ferret.c
+++ b/modules/other/gail/tests/ferret.c
@ -16,6 +16,7 @@
 #include <strings.h>

 #include "testlib.h"
+#include "testvalue.h"

 typedef enum
 {
@ -1389,7 +1390,8 @@ _print_text_attributes (AtkText *aobject)
 static gint
 _print_value (AtkValue *aobject)
 {
-    GValue *value_back, val;
+    GValue val = { 0, };
+    GValue *value_back;
    gint group_num;
    TabNumber tab_n = VALUE;

@ -1398,11 +1400,11 @@ _print_value (AtkValue *aobject)
    group_num = _print_groupname(tab_n, VALUE_INTERFACE,
      "Value Interface");

-    atk_value_get_current_value(aobject, value_back);
+    gail_test_value_get_current_value(aobject, value_back);
    _print_value_type(group_num, "Value", value_back);
-    atk_value_get_minimum_value(aobject, value_back);
+    gail_test_value_get_minimum_value(aobject, value_back);
    _print_value_type(group_num, "Minimum Value", value_back);
-    atk_value_get_maximum_value(aobject, value_back);
+    gail_test_value_get_maximum_value(aobject, value_back);
    _print_value_type(group_num, "Maximum Value", value_back);
    return(group_num);
 }
--- a/modules/other/gail/tests/testpaned.c
+++ b/modules/other/gail/tests/testpaned.c
@ -2,6 +2,7 @@
 #include <stdlib.h>
 #include <gtk/gtk.h>
 #include <testlib.h>
+#include "testvalue.h"

 static gint _test_paned (gpointer data);
 static void _check_paned (AtkObject *obj);
@ -31,17 +32,17 @@ static void _property_change_handler (AtkObject   *obj,
    value = &val;

    memset (value, 0, sizeof (GValue));
-    atk_value_get_current_value (ATK_VALUE (obj), value);
+    gail_test_value_get_current_value (ATK_VALUE (obj), value);
    g_return_if_fail (G_VALUE_HOLDS_INT (value));
    position = g_value_get_int (value);
    g_print ("Position is  %d previous position was %d\n",
             position, last_position);
    last_position = position;
-    atk_value_get_minimum_value (ATK_VALUE (obj), value);
+    gail_test_value_get_minimum_value (ATK_VALUE (obj), value);
    g_return_if_fail (G_VALUE_HOLDS_INT (value));
    position = g_value_get_int (value);
    g_print ("Minimum Value is  %d\n", position);
-    atk_value_get_maximum_value (ATK_VALUE (obj), value);
+    gail_test_value_get_maximum_value (ATK_VALUE (obj), value);
    g_return_if_fail (G_VALUE_HOLDS_INT (value));
    position = g_value_get_int (value);
    g_print ("Maximum Value is  %d\n", position);
@ -61,14 +62,14 @@ static gint _test_paned (gpointer data)
    value = &val;

    memset (value, 0, sizeof (GValue));
-    atk_value_get_current_value (ATK_VALUE (obj), value);
+    gail_test_value_get_current_value (ATK_VALUE (obj), value);
    g_return_val_if_fail (G_VALUE_HOLDS_INT (value), FALSE);
    position = g_value_get_int (value);
    g_print ("Position is : %d\n", position);
    last_position = position;
    position *= 2;
    g_value_set_int (value, position);
-    atk_value_set_current_value (ATK_VALUE (obj), value);
+    gail_test_value_set_current_value (ATK_VALUE (obj), value);
    times++;
  }
  if (times < 4)
--- a/modules/other/gail/tests/testvalue.h
+++ b/modules/other/gail/tests/testvalue.h
@ -0,0 +1,98 @@
+#ifndef __GAIL_TEST_VALUE_H__
+#define __GAIL_TEST_VALUE_H__
+
+#include "config.h"
+
+#include <atk/atk.h>
+
+#ifdef HAVE_ATK_VALUE_2_12
+
+static void
+gail_test_value_store_number (AtkValue *value,
+                              GValue   *result,
+                              gdouble   number)
+{
+  if (G_VALUE_TYPE (result) == 0)
+    g_value_init (result,
+                  atk_object_get_role (ATK_OBJECT (value)) ==
+                  ATK_ROLE_SPLIT_PANE ? G_TYPE_INT : G_TYPE_DOUBLE);
+
+  if (G_VALUE_HOLDS_INT (result))
+    g_value_set_int (result, (gint) number);
+  else
+    {
+      g_return_if_fail (G_VALUE_HOLDS_DOUBLE (result));
+      g_value_set_double (result, number);
+    }
+}
+
+static void
+gail_test_value_get_current_value (AtkValue *value,
+                                   GValue   *result)
+{
+  gdouble number;
+
+  atk_value_get_value_and_text (value, &number, NULL);
+  gail_test_value_store_number (value, result, number);
+}
+
+static void
+gail_test_value_get_limit (AtkValue *value,
+                           GValue   *result,
+                           gboolean  upper)
+{
+  AtkRange *range;
+  gdouble number;
+
+  range = atk_value_get_range (value);
+  g_return_if_fail (range != NULL);
+
+  if (upper)
+    number = atk_range_get_upper_limit (range);
+  else
+    number = atk_range_get_lower_limit (range);
+
+  atk_range_free (range);
+  gail_test_value_store_number (value, result, number);
+}
+
+#define gail_test_value_get_minimum_value(value, result) \
+  gail_test_value_get_limit ((value), (result), FALSE)
+
+#define gail_test_value_get_maximum_value(value, result) \
+  gail_test_value_get_limit ((value), (result), TRUE)
+
+#define GAIL_TEST_VALUE_NUMBER(value)                        \
+  (G_VALUE_HOLDS_INT (value)                                \
+   ? (gdouble) g_value_get_int (value)                       \
+   : g_value_get_double (value))
+
+#define gail_test_value_set_current_value(value, new_value)  \
+  (atk_value_set_value ((value),                             \
+                        GAIL_TEST_VALUE_NUMBER (new_value)), \
+   TRUE)
+
+#else
+
+#define GAIL_TEST_VALUE_IFACE(value) \
+  ATK_VALUE_GET_IFACE (value)
+
+#define gail_test_value_get_current_value(value, result)     \
+  (GAIL_TEST_VALUE_IFACE (value)->get_current_value (        \
+     (value), (result)))
+
+#define gail_test_value_get_minimum_value(value, result)     \
+  (GAIL_TEST_VALUE_IFACE (value)->get_minimum_value (        \
+     (value), (result)))
+
+#define gail_test_value_get_maximum_value(value, result)     \
+  (GAIL_TEST_VALUE_IFACE (value)->get_maximum_value (        \
+     (value), (result)))
+
+#define gail_test_value_set_current_value(value, new_value)  \
+  (GAIL_TEST_VALUE_IFACE (value)->set_current_value (        \
+     (value), (new_value)))
+
+#endif
+
+#endif /* __GAIL_TEST_VALUE_H__ */
--- a/modules/other/gail/tests/testvalues.c
+++ b/modules/other/gail/tests/testvalues.c
@ -1,6 +1,7 @@
 #include <string.h>
 #include <atk/atk.h>
 #include <gtk/gtk.h>
+#include "testvalue.h"

 static void _traverse_children (AtkObject *obj);
 static void _add_handler (AtkObject *obj);
@ -14,8 +15,8 @@ static void _value_change_handler (AtkObject   *obj,
                                   AtkPropertyValues   *values)
 {
  const gchar *type_name = g_type_name (G_TYPE_FROM_INSTANCE (obj));
-   GValue *value_back, val;
-
+   GValue val = { 0, };
+   GValue *value_back;
  value_back = &val;

  if (!ATK_IS_VALUE (obj)) {
@ -33,17 +34,17 @@ static void _value_change_handler (AtkObject   *obj,

 	g_print("Now calling the AtkValue interface functions\n");

-	atk_value_get_current_value (ATK_VALUE(obj), value_back);
+	gail_test_value_get_current_value (ATK_VALUE(obj), value_back);
 	g_return_if_fail (G_VALUE_HOLDS_DOUBLE (value_back));
 	g_print ("atk_value_get_current_value returns %f\n",
 			g_value_get_double (value_back)	);

-	atk_value_get_maximum_value (ATK_VALUE (obj), value_back);
+	gail_test_value_get_maximum_value (ATK_VALUE (obj), value_back);
 	g_return_if_fail (G_VALUE_HOLDS_DOUBLE (value_back));
 	g_print ("atk_value_get_maximum returns %f\n",
 			g_value_get_double (value_back));

-	atk_value_get_minimum_value (ATK_VALUE (obj), value_back);
+	gail_test_value_get_minimum_value (ATK_VALUE (obj), value_back);
 	g_return_if_fail (G_VALUE_HOLDS_DOUBLE (value_back));
 	g_print ("atk_value_get_minimum returns %f\n",
 			g_value_get_double (value_back));
@ -103,7 +104,8 @@ static void _add_handler (AtkObject *obj)

 static void _set_values (AtkObject *obj) {

-  GValue *value_back, val;
+  GValue val = { 0, };
+  GValue *value_back;
  static gint count = 0;
  gdouble double_value;

@ -125,7 +127,7 @@ static void _set_values (AtkObject *obj) {
 			text = "5.7";
 			atk_editable_text_set_text_contents(ATK_EDITABLE_TEXT(obj),text);
 			g_print("Set text to %s\n",text);
-			atk_value_get_current_value(ATK_VALUE(obj), value_back);
+			gail_test_value_get_current_value(ATK_VALUE(obj), value_back);
 			g_return_if_fail (G_VALUE_HOLDS_DOUBLE (value_back));
 			g_print("atk_value_get_current_value returns %f\n",
 				g_value_get_double( value_back));
@ -134,7 +136,7 @@ static void _set_values (AtkObject *obj) {
 		memset (value_back, 0, sizeof (GValue));
 		g_value_init (value_back, G_TYPE_DOUBLE);
 		g_value_set_double (value_back, 10.0);
-		if (atk_value_set_current_value (ATK_VALUE (obj), value_back))
+		if (gail_test_value_set_current_value (ATK_VALUE (obj), value_back))
 		{
 			double_value = g_value_get_double (value_back);
 			g_print("atk_value_set_current_value returns %f\n",
--- a/modules/printbackends/cups/gtkcupsutils.c
+++ b/modules/printbackends/cups/gtkcupsutils.c
@ -34,6 +34,11 @@

 typedef void (*GtkCupsRequestStateFunc) (GtkCupsRequest *request);

+static http_t *gtk_cups_http_connect   (const char        *host,
+                                        int                port,
+                                        http_encryption_t  encryption);
+static int     gtk_cups_http_reconnect (http_t            *http);
+
 static void _connect            (GtkCupsRequest *request);
 static void _post_send          (GtkCupsRequest *request);
 static void _post_write_request (GtkCupsRequest *request);
@ -171,7 +176,7 @@ gtk_cups_request_new_with_username (http_t             *connection,
  else
    {
      request->http = NULL;
-      request->http = httpConnectEncrypt (request->server,
+      request->http = gtk_cups_http_connect (request->server,
                                          ippPort (),
                                          cupsEncryption ());

@ -681,6 +686,29 @@ gtk_cups_request_set_ipp_version (GtkCupsRequest     *request,
  ippSetVersion (request->ipp_request, major, minor);
 }

+
+static http_t *
+gtk_cups_http_connect (const char *host,
+                       int         port,
+                       http_encryption_t encryption)
+{
+#ifdef HAVE_HTTPCONNECT2
+  return httpConnect2 (host, port, NULL, AF_UNSPEC, encryption, 1, 30000, NULL);
+#else
+  return httpConnectEncrypt (host, port, encryption);
+#endif
+}
+
+static int
+gtk_cups_http_reconnect (http_t *http)
+{
+#ifdef HAVE_HTTPRECONNECT2
+  return httpReconnect2 (http, 30000, NULL);
+#else
+  return httpReconnect (http);
+#endif
+}
+
 static void
 _connect (GtkCupsRequest *request)
 {
@ -689,7 +717,7 @@ _connect (GtkCupsRequest *request)

  if (request->http == NULL)
    {
-      request->http = httpConnectEncrypt (request->server,
+      request->http = gtk_cups_http_connect (request->server,
                                          ippPort (),
                                          cupsEncryption ());

@ -744,7 +772,7 @@ _post_send (GtkCupsRequest *request)

  if (httpPost (request->http, request->resource))
    {
-      if (httpReconnect (request->http))
+      if (gtk_cups_http_reconnect (request->http))
        {
          request->state = GTK_CUPS_POST_DONE;
          request->poll_state = GTK_CUPS_HTTP_IDLE;
@ -1046,7 +1074,7 @@ _post_check (GtkCupsRequest *request)
        }

      if (auth_result ||
-          httpReconnect (request->http))
+          gtk_cups_http_reconnect (request->http))
        {
          /* if the password has been used, reset password_state
           * so that we ask for a new one next time around
@ -1105,7 +1133,7 @@ _post_check (GtkCupsRequest *request)
      request->state = GTK_CUPS_POST_CONNECT;

      /* Reconnect... */
-      httpReconnect (request->http);
+      gtk_cups_http_reconnect (request->http);

      /* Upgrade with encryption... */
      httpEncryption (request->http, HTTP_ENCRYPT_REQUIRED);
@ -1232,7 +1260,7 @@ _get_send (GtkCupsRequest *request)

  if (httpGet (request->http, request->resource))
    {
-      if (httpReconnect (request->http))
+      if (gtk_cups_http_reconnect (request->http))
        {
          request->state = GTK_CUPS_GET_DONE;
          request->poll_state = GTK_CUPS_HTTP_IDLE;
@ -1341,7 +1369,7 @@ _get_check (GtkCupsRequest *request)
        }

      if (auth_result ||
-          httpReconnect (request->http))
+          gtk_cups_http_reconnect (request->http))
        {
          /* if the password has been used, reset password_state
           * so that we ask for a new one next time around
@ -1373,7 +1401,7 @@ _get_check (GtkCupsRequest *request)
      request->state = GTK_CUPS_GET_CONNECT;

      /* Reconnect... */
-      httpReconnect (request->http);
+      gtk_cups_http_reconnect (request->http);

      /* Upgrade with encryption... */
      httpEncryption (request->http, HTTP_ENCRYPT_REQUIRED);
--- a/modules/printbackends/cups/gtkprintbackendcups.c
+++ b/modules/printbackends/cups/gtkprintbackendcups.c
@ -489,6 +489,44 @@ cups_free_print_stream_data (CupsPrintStreamData *data)
  g_free (data);
 }

+
+static http_t *
+gtk_cups_backend_http_connect (const char *host,
+                               int         port)
+{
+#ifdef HAVE_HTTPCONNECT2
+  return httpConnect2 (host,
+                       port,
+                       NULL,
+                       AF_UNSPEC,
+                       HTTP_ENCRYPT_IF_REQUESTED,
+                       1,
+                       30000,
+                       NULL);
+#else
+  return httpConnect (host, port);
+#endif
+}
+
+static http_t *
+gtk_cups_backend_http_connect_encrypt (const char        *host,
+                                       int                port,
+                                       http_encryption_t  encryption)
+{
+#ifdef HAVE_HTTPCONNECT2
+  return httpConnect2 (host,
+                       port,
+                       NULL,
+                       AF_UNSPEC,
+                       encryption,
+                       1,
+                       30000,
+                       NULL);
+#else
+  return httpConnectEncrypt (host, port, encryption);
+#endif
+}
+
 static void
 cups_print_cb (GtkPrintBackendCups *print_backend,
               GtkCupsResult       *result,
@ -636,7 +674,9 @@ gtk_print_backend_cups_print_stream (GtkPrintBackend         *print_backend,
    {
      http_t *http;

-      http = httpConnect (cups_printer->hostname, cups_printer->port);
+      http = gtk_cups_backend_http_connect (
+        cups_printer->hostname,
+        cups_printer->port);
      if (http)
        {
          request = gtk_cups_request_new_with_username (http,
@ -2555,7 +2595,7 @@ cups_request_avahi_printer_info (const gchar         *printer_uri,
  AvahiService   *service;
  http_t         *http;

-  http = httpConnect (host, port);
+  http = gtk_cups_backend_http_connect (host, port);
  if (http)
    {
      service = (AvahiService *) g_new0 (AvahiService, 1);
@ -3438,7 +3478,7 @@ cups_request_ppd (GtkPrinter *printer)
        }
    }

-  http = httpConnectEncrypt (cups_printer->hostname,
+  http = gtk_cups_backend_http_connect_encrypt (cups_printer->hostname,
 			     cups_printer->port,
 			     cupsEncryption ());
Author	SHA1	Message	Date
Daemonratte	863f708271	gdk: speed up gray image drawing	2026-08-19 22:23:32 +02:00
Daemonratte	43d974d20f	gdk: speed up RGB32 drawing	2026-08-18 20:57:39 +02:00
Daemonratte	8621bd229d	gdk: speed up indexed dithering	2026-08-18 17:07:41 +02:00
Daemonratte	9dc45513d8	gdk: optimize x86-64 Gray8 conversion Use the equivalent sum-and-shift grayscale expression on x86-64, where it generates shorter and faster code. Keep the existing expression on other targets because the new form regresses i386/Bonnell.	2026-08-18 15:04:53 +02:00
Daemonratte	bc16c71aa0	quartz: support device axis remapping	2026-08-18 13:37:22 +02:00
Daemonratte	895937f043	gdk: use SSE2 pixel compositing on x86-64	2026-08-18 13:21:14 +02:00
Daemonratte	b95fcc5221	gdk: fix Win32 alternating dash pens Use PS_ALTERNATE only for cosmetic one-pixel alternating dash patterns. Correct the pen-type test so it recognizes cosmetic pens, and inspect the second dash length for two-element patterns instead of checking the first entry twice. Other dash patterns continue to use PS_USERSTYLE. This also removes the inherited boolean-precedence compiler warnings.	2026-08-18 09:50:50 +02:00
Daemonratte	7458a4ffe2	gdk: fix Win32 HDC access for offscreen windows Normalize public windows and pixmaps to their drawable implementations before resolving Win32 HDC access. This makes public GDK_WINDOW_OFFSCREEN drawables resolve through their GdkOffscreenWindow backing drawable instead of treating the generic offscreen implementation as a Win32 drawable. The resulting helper removes the incompatible-pointer warning without increasing object text size.	2026-08-18 09:50:50 +02:00
Daemonratte	7665fbc874	gdk: support native low-depth Win32 pixmaps Use native DIB sections for 2-8-bit Win32 pixmaps so logical depth, storage layout, GdkImage access, palette handling, Cairo access and HDC drawing remain consistent. Share the manual DIB setup with the 15/16-bit path, preserve native or canonical RGB555/RGB565 channel masks, and use HDC-backed Cairo rendering when the DIB layout cannot be represented directly by a Cairo image surface. Initialize only the BITMAPINFO header and color data that are actually required.	2026-08-16 20:35:25 +02:00
Daemonratte	54eed58f14	gdk: support X11 LSBFirst 4-bpp images	2026-08-15 22:18:28 +02:00
Daemonratte	5cd79214f3	gdk: fix packed grayscale dither alignment	2026-08-15 12:31:04 +02:00
Daemonratte	5715c9a76c	gdk: optimize x86-64 RGB888 conversion	2026-08-14 12:08:02 +02:00
Daemonratte	7dd6c04cb8	gdk: optimize native RGB555 conversion Use an aligned four-pixel integer converter for native little-endian RGB555 images. Keep the scalar implementation for narrow, unaligned and big-endian paths.	2026-08-14 08:57:01 +02:00
Daemonratte	3f8b4e6ed4	gdk: add direct 30-bit alpha compositing Add an exact integer RGB101010 compositor for native 32-bpp depth-30 TrueColor X11 visuals. Bypass XRender only when the drawable exactly matches the supported RGB101010 layout. Keep the existing XRender and fallback paths for other visuals and retain the existing maximum-dither path. Compile the new compositor and selector only for the X11 backend so Win32, Quartz and DirectFB builds carry no unused RGB101010 compositing code or runtime selection branch.	2026-08-13 16:03:56 +02:00
Daemonratte	7152a3c62e	gdk: add i386 SSE2 pixel compositing	2026-08-13 11:24:54 +02:00
Daemonratte	b52ddc3350	x11: cache pixmap bits per depth	2026-08-13 10:35:47 +02:00
Daemonratte	9561cbac1d	gdk: add i386 SSE pixel compositing	2026-08-13 10:35:47 +02:00
Daemonratte	beb0061b14	gdk: add i386 3DNow pixel compositing	2026-08-13 10:35:47 +02:00
Daemonratte	fc5ef9a7c3	gdk: add i386 MMX RGB565 compositing	2026-08-13 10:35:47 +02:00
Daemonratte	ade749c68b	gdk: add i386 MMX pixel compositing	2026-08-13 10:35:47 +02:00
Daemonratte	1c3b48d6e6	gdk: select pixelops sources by target architecture	2026-08-13 10:35:47 +02:00
Daemonratte	699d5777f2	gdk: separate generic pixel operations	2026-08-13 10:35:47 +02:00
Daemonratte	a0aa5c3d61	gdk: add private pixel operation dispatch	2026-08-13 10:35:47 +02:00
Daemonratte	44f6ec9b03	filechooser: reduce view mode startup overhead Replace the two-item GtkComboBoxText with a lightweight toggle and create icon-view zoom controls only when icon view is first used. Keep the existing icon-view zoom, cache invalidation and settings behavior while avoiding their startup cost for the default list view. Keep the zoom event boxes local instead of storing unused widget pointers.	2026-08-13 10:35:47 +02:00
Daemonratte	8859141eb3	fontsel: localize common font style names	2026-08-13 10:35:47 +02:00
Daemonratte	b8f0ddc217	introspection: add GdkWin32 GIR generation	2026-08-13 10:35:47 +02:00
Daemonratte	40f7cb303d	introspection: pass compiler and GTK DLL path to scanner	2026-08-13 10:35:47 +02:00
Daemonratte	920e0d5495	gtk: replace deprecated tooltip timestamp ABI field	2026-08-13 10:35:47 +02:00
Daemonratte	dd819f2a46	gail: update AtkValue test modules Use a shared private compatibility helper in the GAIL test modules. Exercise the modern AtkValue API when ATK 2.12 or newer is available while retaining the legacy test path for older ATK versions. Initialize temporary GValues explicitly and keep the helper symbols private to the test modules.	2026-08-13 10:35:47 +02:00
Daemonratte	7c2a1d8016	gail: implement modern AtkValue interface Add compile-time support for the modern AtkValue API available since ATK 2.12 while retaining compatibility with older ATK versions. Implement direct modern value, range, increment and setter methods for adjustments, paned widgets, progress bars, ranges, scale buttons and spin buttons. Keep the implementation private, avoid per-instance memory overhead and preserve the existing exported ABI.	2026-08-13 10:35:47 +02:00
Daemonratte	a9867d0ccf	cups: use modern HTTP connection helpers when available Detect httpConnect2 and httpReconnect2 at configure time. Preserve blocking, encryption, timeout and reconnect semantics while retaining the legacy CUPS APIs as compile-time fallbacks.	2026-08-13 10:35:47 +02:00
Daemonratte	113e081bdc	gtk: remove unused IM module query function pointers Keep symbol validation while avoiding unused typed variables and assignments.	2026-08-13 10:35:47 +02:00
Daemonratte	d52c085a27	gtk: reuse cached module path list Avoid computing and allocating the module path list a second time.	2026-08-13 10:35:47 +02:00
Daemonratte	cab82328f4	gtk: replace deprecated IM module parser helpers Use local compile-time selected parser helpers with a legacy Pango fallback. Avoid temporary string decompression allocations and use unlocked stdio where available.	2026-08-13 10:35:47 +02:00
Daemonratte	8da0ce4261	gdk: add high-depth RGB image drawing Add RGB48 and RGBX64 drawing APIs with direct conversion for common 15-, 16-, 24-, 30- and 32-bit TrueColor visuals. Preserve the existing GdkRGB path as a fallback for unsupported visuals and maximum dithering.	2026-08-13 10:35:47 +02:00
Daemonratte	8984300bba	gdk: optimize packed StaticColor conversion	2026-08-04 21:26:05 +02:00
Daemonratte	a923aa3120	gdk: fix packed StaticColor dithering	2026-08-04 19:41:58 +02:00
Daemonratte	b58fc23765	gdk: support 2-bit StaticColor visuals	2026-08-04 19:08:54 +02:00
Daemonratte	e92e770558	gdk: support 3-bit StaticColor visuals	2026-08-04 18:52:31 +02:00
Daemonratte	be64a902a5	gdk: optimize native big-endian RGB565 paths Add native big-endian four-pixel converters for RGB565, grayscale RGB565, and dithered RGB565. Select the block converters only where cross-target code generation is favorable: RGB on PowerPC, s390x, ARMv5+, and AArch64; grayscale on PowerPC, ARMv5+, AArch64, and m68k; and dither on PowerPC. Retain the scalar fallbacks everywhere else. The little-endian machine code remains byte-for-byte unchanged. No runtime endian checks, allocations, or additional image buffers are introduced. Validated with a complete build and test suite, deterministic and randomized big-endian formula tests, exact little-endian .text comparison, and cross-target code-generation checks.	2026-08-04 17:57:34 +02:00
Daemonratte	71023e0333	gdk: add endian-aware 30-bit RGB converters Add specialized converters for both 10:10:10 channel layouts and both X image byte orders. Preserve depth-30 padding bits, avoid invalid negative shifts in the generic converter and select endian conversion at compile time. Validated with a real Xvfb 30-bit A/B pixel test and cross-target endian store checks. Derived from downstream commit `02a2c61f2d`. Co-authored-by: Daemonratte <daemonratte@daemonratte.net>	2026-08-04 15:34:12 +02:00
Daemonratte	00177dd11c	docs: use top_srcdir for GDK X11 header reference Based on the MSYS2 0005-Fix-header-ref.all.patch. Use an explicit top_srcdir-relative path for gdkx.h in the GDK reference documentation instead of a fragile relative path.	2026-08-04 14:02:32 +02:00
Daemonratte	b622340b5b	print: preserve default-printer wait during status updates Based on the openSUSE gtk2-default-printer.patch. Avoid treating printer status updates as user-driven printer selection changes, so the print dialog can continue waiting for a default printer that may appear later.	2026-08-04 12:41:19 +02:00
Daemonratte	757774345d	win32: quote icon cache manifest in resource file Based on the MSYS2 0024-gtk-update-icon-cache-rc-quote.patch. Quote the manifest path when generating the gtk-update-icon-cache resource file so windres parses it correctly.	2026-08-04 09:00:57 +02:00
Daemonratte	4d7fc95583	win32: initialize key state before updating keymap Based on the MSYS2 0023-gdkkeys-win32.c-fix-initialisation-of-key_state-in-u.patch. Clear the key_state array before using it during keymap updates so stale state cannot affect layout handling, including Japanese IME input.	2026-08-04 09:00:57 +02:00
Daemonratte	d181fe8fc3	icontheme: detect SVG icons by extension on Win32 Based on the MSYS2 0022-icontheme-win32-detect-SVG-files-by-extension.patch. Some Windows systems report .svg files with a generic or incorrect content type. On Win32, fall back to the .svg extension so SVG icons can still be detected.	2026-08-04 09:00:57 +02:00
Daemonratte	65f949bcde	win32: improve mouse window lookup through transparent children Based on the MSYS2 0013_fix_mouse_events.patch. Use CWP_SKIPTRANSPARENT while walking from the desktop window, but stop skipping transparent windows after the first level so transparent child windows are still considered correctly.	2026-08-04 09:00:57 +02:00
Daemonratte	8d4015ee54	quartz: avoid extra resize-idle updates on Big Sur and newer Based on part of the MacPorts Big Sur performance patch for GIMP issue 5989. Keep the existing gdk_window_process_all_updates() call for non-Quartz targets and for older macOS releases, but avoid this extra resize-idle update path on Big Sur and newer where it can contribute to expensive full-window redraw behaviour.	2026-08-04 08:45:38 +02:00
Daemonratte	c1fc6ed642	quartz: avoid extra content invalidation on Big Sur and newer Based on part of the MacPorts Big Sur performance patch for GIMP issue 5989. Keep the existing Mojave-era setNeedsDisplay workaround for macOS 10.14 and 10.15, but avoid the extra full-window invalidation on Big Sur and newer where it can cause expensive redraw behaviour.	2026-08-04 08:45:38 +02:00
Daemonratte	9d7c7e63d6	quartz: request 8-bit layer contents on Big Sur and newer Based on part of the MacPorts Big Sur performance patch for GIMP issue 5989. Use a dynamic Objective-C call to request 8-bit layer contents on macOS 11 and newer, avoiding a hard QuartzCore/CALayer compile-time dependency and preserving old behaviour on older macOS releases.	2026-08-04 08:45:38 +02:00
Daemonratte	fe45d0944c	quartz: avoid screen update suppression on Mojave and newer Based on part of the MacPorts Big Sur performance patch for GIMP issue 5989. NSDisableScreenUpdates and NSEnableScreenUpdates are deprecated on newer macOS releases. Keep using them for older macOS versions, but avoid them on Mojave and newer.	2026-08-04 08:45:38 +02:00
Daemonratte	21fdf2eeaa	quartz: use CGContext accessor on Yosemite and newer Based on part of the MacPorts Big Sur performance patch for GIMP issue 5989. Use the modern NSGraphicsContext CGContext accessor on Yosemite and newer, matching the existing Quartz window code, while preserving graphicsPort for older macOS versions.	2026-08-04 08:45:38 +02:00
Daemonratte	8b7fda063e	quartz: map macOS 11 and newer to internal OS versions Based on part of the MacPorts Big Sur performance patch for GIMP issue 5989. GTK2 represents macOS 10.x releases by their minor version. Read the major version as well and map macOS 11 and newer into the same sequence so Big Sur and later releases can be detected correctly.	2026-08-04 08:45:38 +02:00
Daemonratte	0bc8029032	quartz: avoid focus locking on Mojave and newer Based on part of the MacPorts Big Sur performance patch for GIMP issue 5989. The NSView focus-locking API is deprecated on newer macOS releases and can cause expensive redraw behaviour. Keep the old path for older macOS versions, but avoid lockFocusIfCanDraw/unlockFocus on Mojave and newer.	2026-08-04 08:45:38 +02:00
Daemonratte	72dcfc7ca5	quartz: add newer macOS version constants Based on the MacPorts patch-gdkquartz-osx-versions.diff. Extend the Quartz OS version enum so later macOS-specific code can distinguish Catalina, Big Sur, Monterey, Ventura, Sonoma, and Sequoia while preserving the existing older constants.	2026-08-04 08:45:38 +02:00
Daemonratte	292e512bc4	build: disable GNU visibility aliases on Apple platforms Based on the MacPorts patch-aliases.diff. Keep the existing GNU visibility alias generation on other platforms, but avoid it on Apple targets where this alias mechanism is not suitable.	2026-08-04 08:45:38 +02:00
Daemonratte	d8b26dc0b7	gtktrayicon: use explicit void prototypes for reserved slots Based on the Mageia gtk+-2.24.32-warnings.patch. Declare the reserved GtkTrayIconClass function pointers with explicit void parameter lists to avoid strict-prototype warnings without changing the class layout.	2026-08-04 08:37:17 +02:00
Daemonratte	790b8c2b69	gtkrc: search XDG data dirs for themes Based on the Guix gtk2-theme-paths.patch by Jookia. Keep the existing ~/.themes and gtk_rc_get_theme_dir() lookup paths, but check g_get_system_data_dirs() in between so profile- and prefix-based theme installations can be found.	2026-08-03 16:06:17 +02:00
Daemonratte	0e8d6a76b6	tests: fix GtkBuilder signal callback prototypes Based on the Guix gtk2-fix-builder-test.patch. The callbacks are connected to notify-style signals and must take a GParamSpec pointer, not a GParamSpec by value. This avoids stack/register ABI problems on platforms such as ppc64el.	2026-08-03 15:55:03 +02:00