2005-08-15 Owen Taylor <otaylor@redhat.com>
* configure.in: Fix have_base_pc / have_base_x_pc typo.
* gdk/x11/gdkdrawable-x11.c gtk/gtksettings.c: Remove panoxft.h includes.
(#313417, James Andrewartha)
* configure.in: Add fontconfig to X_PACKAGES, since we use it for
FcNameConstant(). (More of #313417)
2005-07-20 Keith Packard <keithp@keithp.com>
* gdk/x11/gdkdrawable-x11.c: (gdk_x11_ref_cairo_surface):
Follow change in cairo API to add Screen* to
cairo_xlib_create_surface_for_bitmap
2005-05-13 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c: Update for cairo-xlib API change.
* gdk/x11/gdkpixmap-x11.[ch] gdk/gdk.symbols: Export
gdk_pixmap_impl_x11_get_type(), needed in gdkdrawable-x11.c.
2005-05-09 Owen Taylor <otaylor@redhat.com>
* gdk/gdkrgb.c (gdk_rgb_convert_0888_br, gdk_rgb_convert_8880_br):
Fill in unused bits so they can be used for the depth-32 target case.
Rewrite so that that gives a marginal speedup rather than a
marginal slowdown. (on x86)
* gdk/gdkscreen.h gdk/x11/gdkscreen-x11.[ch] gdk/x11/gdkvisual-x11.c:
Add gdk_screen_get_rgba_colormap/visual to get a visual for
windows with an alpha channel, if one exists.
* gdk/win32/gdkscreen-win32.c gdk/linux-fb/gdkscreen-fb.c:
Stub out gdk_screen_get_rgba_colormap/visual.
* gdk/x11/gdkcolor-x11.c (gdk_colormap_alloc_colors): computation of
"unused" wasn't right for depth == 32, since it depended on
shifting by 32.
* gdk/gdkrgb.c: Fill in alpha bits with 1s. (Based on patch from
Keith Packard,
http://mail.gnome.org/archives/gtk-devel-list/2004-June/msg00080.html)
* gdk/x11/gdkdrawable-x11.c (gdk_x11_drawable_get_picture):
Implement again, without using Xft.
* tests/testgtk.c: Add a test for windows with an alpha channel.
2005-04-28 Owen Taylor <otaylor@redhat.com>
* gtk/gtkwidget.c: Add a draw-border style property to allow
themes to draw outside the widget's allocation.
* gdk/gdkwindow.c gtk/gtkstyle.c: Remove some save/restore pairs
that were working around the clip-leakage bug in Cairo.
* gtk/gtkstyle.c: Use cairo_fill_preserve() rathe than
save/fill/restore.
* gdk/gdkgc.c gdk/gdkinternals.h: Add _gdk_gc_update_context()
That updates a Cairo context to match a GC.
* gdk/gdkdraw.c: Use _gdk_gc_update_context() to add support
for tiles/stipples/clipping to gdk_draw_glyphs(),
gdk_draw_trapezoids().
* gdk/gdkpango.c: Use _gdk_gc_update_context() instead of internal
implementation of stipples. Use one cairo_t across the entire
drawing operation. Replace cairo_matrix_create() with
stack-allocated matrices.
* gdk/gdkgc.c gdk/gdkinternals.h gdk/x11/gdkgc-x11.c
gdk/win32/gdkgc-win32.c: Save various aspects of the
GC state (fill, tile, stipple, foreground, background, clip region)
in instance-private-data for future use. Add getters.
Get rid of _gdk_windowing_gc_get_foreground() function implemented
by the backends.
* gdk/gdkgc.c gdk/gdkinternals.h gdk/x11/gdkgc-x11.c
gdk/win32/gdkgc-win32.c gdk/linux-fb/gdkgc-fb.c: Add
_gdk_gc_init() to do initial setup of the GC from values;
fixes some problems from drawable redirection.
* gdk/gdkgc.c gdk/gdkinternals.h gdk/x11/gdkgc-x11.c
gdk/win32/gdkgc-win32.c gdk/linux-fb/gdkgc-fb.c: Move
gdk_gc_copy() and gdk_gc_set_clip_{region,rectangle}() into
the generic code, add _gdk_windowing_gc_copy(),
_gdk_windowing_gc_set_clip_region() to do backend specific
stuff.
* gdk/x11/{gdkprivate-x11.h,gdkgc-x11.c.c,gdkdrawable-x11.c}
gdk/win32/{gdkprivate-win32.h,gdkgc-x11.c.c,gdkdrawable-x11.c}
gdk/linux-fb/{gdkprivate-fb.h,gdkgc-fb.c.c,gdkdrawable-fb.c}:
Don't duplicate state that now is stored by the generic code.
* gdk/gdk.symbols Update
2005-03-15 Owen Taylor <otaylor@redhat.com>
* gdk/gdkdrawable.h gdk/gdkdraw.c gdk/gdkpixmap.c gdk/gdkwindow.c
gdk/x11/gdkdrawable-x11.c gdk/x11/gdkpixmap-x11.c gdk/x11/gdkwindow-x11.c
gdk/gdkinternals.h: Switch set_cairo_target() virtual function to
ref_cairo_surface()
* gdk/gdkdrawable.h gdk/gdkdraw.h: Switch set_cairo_target() virtual
function to create_cairo_context()
* gdk/gdkwindow.c: Clear double buffer pixmaps with Cairo.
* gdk/x11/gdkwindow-x11.c: Keep all components in GdkWindowObject.bg_color,
not just the pixel.
* tests/testcairo.c: Update for create_cairo_context()
* gdk/gdkdraw.c (gdk_draw_trapezoids, gdk_draw_glyphs[_transformed]):
Reimplement in terms of Cairo, bypass the vtable entries.
* gdk/x11/gdkdrawable-x11.[ch] gdk/x11/gdkdisplay-x11.[ch]
gdk/x11/gdkgc-x11.c gdk/x11/gdkpango-x11.c
gdk/x11/gdkprivate-x11.h gdk/x11/Makefile.am: Remove
implementation of draw_trapezoids / draw_glyphs[_transformed].
* gdk/gdkpango.c: Switch GdkPangoRenderer to use Cairo
* gdk/gdkpango.c gdk/x11/gdkpango-x11.c: Move
gdk_pango_context_get_for_screen() into the backend independent code.
* gdk/x11/gdkdrawable-x11.[ch]: Remove Xft use, use RENDER directly
for drawing images.
* gdk/gdkdrawable.h gdk/x11/gdkdrawable-x11.c: Remove
gdk_draw_rectangle_alpha_libgtk_only.
* gdk/gdkpixbuf.h gdk/gdkpixbuf-render.c: Add
gdk_pixbuf_set_as_cairo_source()
* gdk/gdk.symbols: Update
* gtk/gtkcolorsel.c gtk/gtkhsv.c gtk/gtkiconview.c gtk/gtkruler.[ch]
gtk/gtk[hv]ruler.c: Convert to Cairo rendering.
* gtk/gtkstyle.c (gtk_default_draw_check, gtk_default_draw_focus,
gtk_default_draw_option): Switch to Cairo. Simplify the checkbutton,
radio button style for now to get something more scalable.
* gtk/gtksettings.c: #if 0 out the code to use PangoXft for hinting/
antialiasing/dpi settings.
2005-03-15 Matthias Clasen <mclasen@redhat.com>
Make PLT-reduction work with gcc4, and don't include
everything in gdkalias.h:
* gdk/gdk.symbols: Group symbols by header and source file.
* gdk/makegdkalias.pl: Protect definitions by the same
preprocessor symbols used to guard the headers. Move
the alias declarations to a separate file which is
produced when calling makegdkalias.pl -def
* gdk/Makefile.am (gdkaliasdef.c): Add a rule to generate this
file.
* gdk/*.c, gdk/x11/*.c: Include gdkalias.h after the other
headers, include gdkaliasdef.c at the bottom.
2005-02-20 Matthias Clasen <mclasen@redhat.com>
* gdk/x11/gdkdrawable-x11.c (_gdk_x11_have_render_with_trapezoids):
Set have_render_with_trapezoids to GDK_YES when we have
a new enough Render extension. (#167965,Billy Biggs)
2005-02-03 Owen Taylor <otaylor@redhat.com>
* gdk/gdkdrawable.[ch] gdkpixmap.c gdkwindow.c: Add
gdk_drawable_set_cairo_target().
* tests/testtreeflow.c (enum): Use grand not rand as a variable
name because one of the cairo headers is pulling in stdlib.h.
* tests/testcairo.c tests/Makefile.am: Add a simple cairo based
example.
* configure.in: Bump release to 2.7.0, gtk_binary_version to 2.7.0.
* Require libpangocairo for all backends.
2005-01-18 Matthias Clasen <mclasen@redhat.com>
Avoid X errors when running against servers which
implement XRender < 0.4. (#164427, Albert Chin)
* gdk/x11/gdkprivate-x11.h:
* gdk/x11/gdkdrawable-x11.c (_gdk_x11_have_render_with_trapezoids):
New function to check for trapezoid support in XRender.
(gdk_x11_draw_trapezoids, _gdk_x11_drawable_draw_xtrapezoids):
Use it here.
* gdk/x11/gdkdisplay-x11.h (struct _GdkDisplayX11): Add a
separate have_render_with_trapezoids field.
* gdk/x11/gdkdisplay-x11.c (gdk_display_open): Initialize it.
Sat Nov 20 15:13:51 2004 Owen Taylor <otaylor@redhat.com>
* gdk/gdkpango.[ch]: Add GdkPangoRenderer, a subclass of
PangoRenderer targeting GDK drawables. Use to implement the old
gdk_draw_layout() and friends.
* gdk/gdkdraw.c gdk/gdkdrawable.h gdk/gdkwindow.c gdk/gdkpixmap.c:
Add gdk_draw_glyphs_transformed() gdk_draw_trapezoids() and
the corresponding members of GdkDrawableClass. Add a fallback
implementation of gdk_draw_trapezoids() in terms of pixbufs.
* gdk/gdkwindowing.h gdk/x11/gdkg-x11.h: Add
_gdk_windowing_gc_get_foreground() to enable the fallback
trapezoid implementation.
* gdk/x11/gdkdrawable-x11.c gdk/x11/gdkdisplay-x11.h: Implement
draw_glyph_transformed, draw_trapezoids.
* gdk/x11/gdkdrawable-x11.[ch]: Add
_gdk_x11_drawable_draw_xtrapezoids, _gdk_x11_drawable_draw_xft_glyphs
for use of GdkX11Renderer.
* gdk/x11/gdkgc-x11.c gdk/x11/gdkprivate-x11.h: Implement
GDK_TILED, GDK_STIPPLED, GDK_OPAQUE_STIPPLED in the RENDER codepath.
* gdk/gdkpango-x11.c: Add GdkX11Renderer... a subclass of
PangoXftRenderer that does tiles/stipples and fallback rendering
of trapezoids without the RENDER extension.
* gdk/gdkpango-x11.c gdk/x11/gdkscreen-x11.[ch] _gdk_x11_renderer_get:
Add _gdk_x11_renderer_get() to get a singleton GdkX11Renderer
for the screen.
* gdk/x11/gdkdrawable-x11.c (get_impl_drawable): Fix a None/NULL
confusion.
* gtk/gtklabel.[ch] gtk/gtk.symbols: Add gtk_label_set/get_angle(),
and an ::angle property.
* gtk/gtklabel.c: Remove #if 0'd dead code gtk_label_paint_word().
* gtk/gtktextdisplay.c: Switch to using a GtkTextRenderer subclass
of GdkPangoRenderer for drawing.
* gtk/gtktextlayout.[ch] gtk/gtktextdisplay.c: Switch to using
gtk_attr_shape_new_with_data() to store backreferences to
embedded pixmaps and widgets. Leave line_display->shaped_objects
around for backwords compatibility.
* gdk/gdkpango.[ch] (gdk_pango_context_set_colormap): Describe
as deprecated, remove implementation.
* gtk/gtkwidget.c (gtk_widget_create_pango_context): Remove
call to gdk_pango_context_set_colormap.
* demos/gtk-demo/Makefile.am demos/gtk-demo/rotated_text.c: Add
a demo showing drawing rotated text.
* tests/testgtk.c: Add a rotated-label test, and also a rotated
drawing test (differs from demos/gtk-demo/rotated_text by also
using a tile)
Mon Aug 9 15:41:17 2004 Matthias Clasen <maclas@gmx.de>
Add hidden aliases for exported symbols which are
used internally in order to get rid of many PLT
entries. (#145519, Arjan van de Ven)
* gdk/Makefile.am: Add rules to generate gdk.def and
gdkalias.h from gdk.symbols, and make make check check
the abi with abicheck.sh.
* gdk/gdk.symbols: New file. Definition of the GDK ABI.
The file can be processed by cpp to filter out certain
subsets of symbols.
* gdk/abicheck.sh: New file. Script to check the actually
symbols exported from libgdk-x11.2.0.so against the symbols
found in gdk.symbols.
* gdk/makegdkalias.pl: New file. Perl script to generate the
header containing the alias definitions for internally used
exported symbols from a list of symbols.
* gdk/*.c, gdk/x11/*.c: Include gdkalias.h
2004-07-28 Anders Carlsson <andersca@gnome.org>
* gdk/x11/gdkdrawable-x11.c (gdk_draw_rectangle_alpha_libgtk_only):
Cast to 32-bit integers when premultiplying, suggested by Keith Packard.
2004-06-21 Michael Natterer <mitch@gimp.org>
Merge from stable:
* gdk/x11/gdkdrawable-x11.[ch]: made convert_format() utility
function public as _gdk_x11_convert_to_format().
* gdk/x11/gdkcursor-x11.c (create_cursor_image): premultiply
the pixels from the GdkPixbuf when putting them in the
Xcursor image. Fixes bug #144350.
2004-03-05 Federico Mena Quintero <federico@ximian.com>
Fixes#136082 and #135265, patch by Morten Welinder.
* configure.in: Use AC_SYS_LARGEFILE.
* */*.c: #include <config.h>
Wed Feb 18 01:44:59 2004 Soeren Sandmann <sandmann@daimi.au.dk>
GC caching, bug #125645 (based on patch by Brian Cameron)
* gdk/gdkscreen.h (struct _GdkScreen): Add GC cache
* gdk/gdkscreen.c (gdk_screen_dispose): New function. Unref the
cached GC's here.
* gdk/gdkdraw.c (_gdk_drawable_get_scratch_gc): New function to
get a scratch gc.
* gdk/gdkinternals.h: Declare the function here
* gdk/gdkdraw.c (gdk_drawable_real_draw_pixbuf): Use
_gdk_drawable_get_scratch_gc() instead of creating a new GC.
* gdk/x11/gdkgeometry-x11.c (gdk_window_copy_area_scroll): same
* gdk/x11/gdkdrawable-x11.c (draw_with_images): same
* gdk/gdkwindow.c (gdk_window_get_composite_drawable): same
* gdk/gdkwindow.c (gdk_window_end_paint): same
* gdk/gdkpixmap.c (gdk_pixmap_colormap_new_from_pixbuf): same
* gdk/gdkpixbuf-render.c (gdk_pixbuf_render_threshold_alpha): same
* gdk/gdkpixbuf-render.c (gdk_pixbuf_render_pixmap_and_mask_for_colormap): same
Tue Feb 17 23:02:58 2004 Soeren Sandmann <sandmann@daimi.au.dk>
Fix for #119722, reported by Olexiy Avramchenko, patch by Owen
Taylor.
* gdk/x11/gdkprivate-x11.h (struct _GdkGCX11): Add a depth field
* gdk/x11/gdkgc-x11.c (_gdk_x11_gc_new): Keep track of the GC's
depth.
* gdk/x11/gdkgc-x11.c (_gdk_gc_x11_get_fg_xft_color): First query
the colormap, if no colormap, special case depth 1,
* gdk/x11/gdkgc-x11.c (_gdk_x11_gc_get_fg_picture): Use
_gdk_gc_x11_get_fg_xft_color() to get the foreground color.
* gdk/x11/gdkdrawable-x11.c (gdk_x11_drawable_get_xft_draw):
Special-case bitmaps without a colormap.
* gdk/x11/gdkdrawable-x11.c (gdk_x11_draw_pixbuf): Use inherited
draw_pixbuf() implementation in the bitmap case.
Fri Jan 30 11:37:37 2004 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c: Revert changes from
#113476 and go back to using XftDrawSetClip, because
XftDrawSetClipRectangles is buggy in XFree86-4.3.
Mon Aug 18 11:48:51 2003 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c (convert_to_format):
Add a fallback for unaligned source data for
FORMAT_ARGB_MASK. (#117217)
Fri Aug 15 12:34:04 2003 Owen Taylor <otaylor@redhat.com>
Fixes for X/Cygwin builds of GTK+ (#107623, Masahiro Sakai):
* configure.in (GDK_DEP_LIBS_FOR_X): Make sure that
we link libgtk against X explicitely, since we
make GTK+ calls for plug/socket.
* gtk/queryimmodules.c: Use USE_LA_MODULES and
G_MODULE_SUFFIX here.
* gdk/x11/gdkdrawable-x11.c (gdk_x11_draw_image): Protect
XShmPutImage with #ifdef USE_SHM.
Sat Aug 2 12:53:16 2003 Owen Taylor <otaylor@redhat.com>
* configure.in: Requires glib-2.3.0, pango-1.2.0.
* configure.in: Require Xft version 2,
remove code for handling older versions of pango and Xft.
Many miscellaneous improvements to X checks
* acinclude.m4: Add GTK_ADD_LIB() macro for adding
a library to a variable, avoiding dups.
* gdk/x11/gdkfont-x11.c (gdk_font_from_description_for_display):
Always load "fixed"
* gdk/x11/gdk*-x11.[ch]: Remove support for Xft1 and
for pangox.
Fri Aug 1 16:30:13 2003 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c (_gdk_x11_have_render):
If the check for missing depths, try actually creating pixmaps
of the depths to deal with Xinerama not reporting
all the depths it should. (#115822)
Tue Jun 3 15:05:47 2003 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c (convert_to_format): Remove
bad optimization for src_rowstride == dest_stride.
(Didn't consider the case where we were copying only
partial widths of a wider source buffer)
(#113034, reported by Hans Petter Jansson)
Fri Apr 18 15:56:46 2003 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdisplay-x11.[ch] gdk/x11/gdkdrawable-x11.[ch]:
Patch from Morten Welinder to catch Sun servers with a
broken implementation of the RENDER extension. (#108309)
Thu Nov 7 17:18:06 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c (gdk_x11_draw_pixbuf):
Don't try to use render if we can't get a picture for
the drawable. (Fixes#97220, reported by
Jamie Zawinski)
* gtk/gtkimage.c: Force requisition calculation
when we get a expose prior to size_request().
(#91711, reported by Sven Neumann, debugging
help from Matthias Clasen, Soeren Sandmann)
Thu Oct 3 17:09:23 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/{gdkdrawable-x11.[ch],gdkpixmap-x11.c,
gdkwindow-x11.c}: Restore the pre-Xft2 code to
render text directly via RENDER, conditionalized
with !HAVE_XFT2 so that we'll build again on Xft1
systems. (#90181)
Wed Oct 2 17:46:53 2002 Owen Taylor <otaylor@redhat.com>
* gdk/gdkdrawable.h gdk/gdkinternals.h gdk/gdkdraw.c
gdk/gdkwindow.c gdk/gdkdrawable.c: Export _gdk_draw_pixbuf
as gdk_draw_pixbuf(), rename the _draw_pixbuf virtual
function to draw_pixbuf. (#60582)
* gdk/gdkpixbuf-render.c (gdk_pixbuf_render_to_drawable[_alpha]):
Note that these functions are obsolete in the docs.
* gdk/gdkpixbuf-render.c (gdk_pixbuf_render_to_drawable):
Remove all the sanity checks now we make it clear
that it is obsolete name for gdk_draw_pixbuf().
* gdk/gdkpixmap.c gtk/gtkcellrendererpixbuf.c gtk/gtkimage.c
gtk/gtkpixmap.c demos/testpixbuf-scale.c demos/testpixbuf.c
tests/testrgb.c: Use gdk_draw_pixbuf() everywhere.
* gtk/gtklabel.c (gtk_label_set_mnemonic_widget): Fix
some warnings.
* gdk/gdkinternals.h (struct _GdkEventPrivate): Fix missed
bit from last gdk_event_get_screen() change.
* gdk/gdkevents.c: Couple of small fixes.i
Fri Aug 2 00:43:15 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.[ch] gdk/x11/gdkgc-x11.c
gdk/x11/gdkpango-x11.c gdk/x11/gdkpixmap-x11.c
gdk/x11/gdkprivate-x11.h gdk/x11/gdkwindow-x11.c:
Switch back to using XftDraw so that we take
advantage of the draw-to-non-RENDER capabilities
of Xft2.
* demos/gtk-demo/changedisplay.c (query_for_toplevel):
Fix the case where the user clicks on the "click on
a window popup".
Thu Apr 25 16:51:40 2002 Owen Taylor <otaylor@redhat.com>
Start of integration of Erwann Chenede's multihead work
from the gtk-multihead branch.
* gdk/gdkdisplay.[ch] gdk/gdkscreen.[ch]
gdk/x11/gdkdisplay-x11.[ch] gdk/x11/gdkscreen-x11.[ch]
New classes representing a set of screens with attached
input devices and a single contiguous area, respectively.
* gdk/gdk.[ch] gdk/gdkinternals.h gdk/x11/gdkmain-x11.c:
gdk/x11/gdkprivate-x11.h: Make the initialization interface
simple _gdk_windowing_init() and do the rest in
gdk_open_display() calls.
* gdk/gdk.[ch]: Add gdk_parse_args() which can be used
to do the display-independent part of initialization
instead of gdk_init_[check].
* gdk/gdkcursor.h gdk/gdkfont.h gdk/gdkkeys.h gdk/gdkpixmap.h
gdk/gdkproperty.h gdk/gdkselection.h gdk/gdkwindow.h:
Add multihead variants (_for_display(), for_screen()) of functions
getting information specific to a particular screen screen or
display.
* gdk/gdkscreen.[ch]: Add gdk_screen__* variants of functions
like gdk_rgb_get_colormap() that used to get/list global
objects.
* gdk/x11/gdkx.h: Add functions for converting GdkScreen
and GdkDisplay into the X equivalents.
* gdk/x11/gdkwindow-x11.c: Removed gdk_window_xid_at_coords()
not in the headers and unused.
* configure.in gdk/x11/{gxid.c,gxid_lib.[ch],gdkinput-gxi.c}:
Remove gxid support ... has not been tested for a long time...
"xfree" support is more portable to non XFree86.
* gdk/**.h: Add a GDK_MULTIHEAD_SAFE define that can be
used to turn off functions that are inherently non-multihead
safe.
* gdk/**.c: add GDK_NOTE(multihead, ...) calls when functions
are used in non-multihead-safe ways.
* gdk/*.c gdk/x11/*.c: Changes to make the internals of GDK
multihead safe.
Fri Mar 15 15:37:01 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c (convert_to_format):
Fix byte shift arithmetic for big-endian. (Tracked
down with help from Tuomas Kuosmanen)
Wed Jan 9 10:20:16 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c gdk/x11/gdkgc-c11.c: Check for
RENDER before trying to use it... XRenderFindFormat() prints
warnings if called when extension isn't present.
Mon Jan 7 22:19:32 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c (draw_with_pixmaps): Fix a
problem where were the offset into the image was passed
into convert_to_format() wrong.
* gdk/x11/gdkdrawable-x11.c (gdk_x11_draw_pixbuf): Call
gdk_x11_drawable_update_picture_clip () before using
the picture; allow update_picture_clip() to take a NULL gc
to mean no clipping.
Fri Jan 4 01:36:48 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c (convert_to_format): Optimize
a little bit. (More for consistency than because it
makes much of a difference.)
