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2bedd205c5
Instead, actually use the create_cairo_surface vfunc on the implementation drawable. D'oh.
534 lines
13 KiB
C
534 lines
13 KiB
C
/* GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "config.h"
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#include "gdkx.h"
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#include <cairo-xlib.h>
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#include <stdlib.h>
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#include <string.h> /* for memcpy() */
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#if defined (HAVE_IPC_H) && defined (HAVE_SHM_H) && defined (HAVE_XSHM_H)
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#define USE_SHM
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#endif
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#ifdef USE_SHM
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#include <X11/extensions/XShm.h>
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#endif /* USE_SHM */
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#include "gdkprivate-x11.h"
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#include "gdkdrawable-x11.h"
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#include "gdkpixmap-x11.h"
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#include "gdkscreen-x11.h"
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#include "gdkdisplay-x11.h"
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static cairo_surface_t *gdk_x11_ref_cairo_surface (GdkDrawable *drawable);
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static cairo_surface_t *gdk_x11_create_cairo_surface (GdkDrawable *drawable,
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int width,
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int height);
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static void gdk_x11_set_colormap (GdkDrawable *drawable,
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GdkColormap *colormap);
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static GdkColormap* gdk_x11_get_colormap (GdkDrawable *drawable);
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static gint gdk_x11_get_depth (GdkDrawable *drawable);
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static GdkScreen * gdk_x11_get_screen (GdkDrawable *drawable);
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static GdkVisual* gdk_x11_get_visual (GdkDrawable *drawable);
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static void gdk_drawable_impl_x11_finalize (GObject *object);
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static const cairo_user_data_key_t gdk_x11_cairo_key;
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G_DEFINE_TYPE (GdkDrawableImplX11, _gdk_drawable_impl_x11, GDK_TYPE_DRAWABLE)
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static void
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_gdk_drawable_impl_x11_class_init (GdkDrawableImplX11Class *klass)
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{
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GdkDrawableClass *drawable_class = GDK_DRAWABLE_CLASS (klass);
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->finalize = gdk_drawable_impl_x11_finalize;
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drawable_class->ref_cairo_surface = gdk_x11_ref_cairo_surface;
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drawable_class->create_cairo_surface = gdk_x11_create_cairo_surface;
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drawable_class->set_colormap = gdk_x11_set_colormap;
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drawable_class->get_colormap = gdk_x11_get_colormap;
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drawable_class->get_depth = gdk_x11_get_depth;
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drawable_class->get_screen = gdk_x11_get_screen;
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drawable_class->get_visual = gdk_x11_get_visual;
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}
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static void
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_gdk_drawable_impl_x11_init (GdkDrawableImplX11 *impl)
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{
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}
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static void
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gdk_drawable_impl_x11_finalize (GObject *object)
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{
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gdk_drawable_set_colormap (GDK_DRAWABLE (object), NULL);
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G_OBJECT_CLASS (_gdk_drawable_impl_x11_parent_class)->finalize (object);
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}
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/**
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* _gdk_x11_drawable_finish:
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* @drawable: a #GdkDrawableImplX11.
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*
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* Performs necessary cleanup prior to freeing a pixmap or
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* destroying a window.
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**/
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void
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_gdk_x11_drawable_finish (GdkDrawable *drawable)
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{
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GdkDrawableImplX11 *impl = GDK_DRAWABLE_IMPL_X11 (drawable);
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if (impl->cairo_surface)
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{
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cairo_surface_finish (impl->cairo_surface);
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cairo_surface_set_user_data (impl->cairo_surface, &gdk_x11_cairo_key,
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NULL, NULL);
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}
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}
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/**
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* _gdk_x11_drawable_update_size:
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* @drawable: a #GdkDrawableImplX11.
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*
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* Updates the state of the drawable (in particular the drawable's
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* cairo surface) when its size has changed.
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**/
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void
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_gdk_x11_drawable_update_size (GdkDrawable *drawable)
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{
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GdkDrawableImplX11 *impl = GDK_DRAWABLE_IMPL_X11 (drawable);
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if (impl->cairo_surface)
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{
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int width, height;
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gdk_drawable_get_size (drawable, &width, &height);
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cairo_xlib_surface_set_size (impl->cairo_surface, width, height);
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}
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}
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/*****************************************************
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* X11 specific implementations of generic functions *
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*****************************************************/
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static GdkColormap*
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gdk_x11_get_colormap (GdkDrawable *drawable)
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{
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GdkDrawableImplX11 *impl;
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impl = GDK_DRAWABLE_IMPL_X11 (drawable);
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return impl->colormap;
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}
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static void
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gdk_x11_set_colormap (GdkDrawable *drawable,
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GdkColormap *colormap)
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{
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GdkDrawableImplX11 *impl;
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impl = GDK_DRAWABLE_IMPL_X11 (drawable);
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if (impl->colormap == colormap)
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return;
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if (impl->colormap)
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g_object_unref (impl->colormap);
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impl->colormap = colormap;
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if (impl->colormap)
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g_object_ref (impl->colormap);
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}
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static gint
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gdk_x11_get_depth (GdkDrawable *drawable)
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{
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/* This is a bit bogus but I'm not sure the other way is better */
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return gdk_drawable_get_depth (GDK_DRAWABLE_IMPL_X11 (drawable)->wrapper);
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}
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static GdkDrawable *
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get_impl_drawable (GdkDrawable *drawable)
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{
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if (GDK_IS_WINDOW (drawable))
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return ((GdkWindowObject *)drawable)->impl;
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else if (GDK_IS_PIXMAP (drawable))
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return ((GdkPixmapObject *)drawable)->impl;
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else
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{
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g_warning (G_STRLOC " drawable is not a pixmap or window");
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return NULL;
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}
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}
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static GdkScreen*
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gdk_x11_get_screen (GdkDrawable *drawable)
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{
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if (GDK_IS_DRAWABLE_IMPL_X11 (drawable))
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return GDK_DRAWABLE_IMPL_X11 (drawable)->screen;
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else
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return GDK_DRAWABLE_IMPL_X11 (get_impl_drawable (drawable))->screen;
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}
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static GdkVisual*
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gdk_x11_get_visual (GdkDrawable *drawable)
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{
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return gdk_drawable_get_visual (GDK_DRAWABLE_IMPL_X11 (drawable)->wrapper);
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}
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/**
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* gdk_x11_drawable_get_xdisplay:
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* @drawable: a #GdkDrawable.
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*
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* Returns the display of a #GdkDrawable.
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*
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* Return value: an Xlib <type>Display*</type>.
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**/
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Display *
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gdk_x11_drawable_get_xdisplay (GdkDrawable *drawable)
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{
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if (GDK_IS_DRAWABLE_IMPL_X11 (drawable))
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return GDK_SCREEN_XDISPLAY (GDK_DRAWABLE_IMPL_X11 (drawable)->screen);
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else
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return GDK_SCREEN_XDISPLAY (GDK_DRAWABLE_IMPL_X11 (get_impl_drawable (drawable))->screen);
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}
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/**
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* gdk_x11_drawable_get_xid:
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* @drawable: a #GdkDrawable.
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*
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* Returns the X resource (window or pixmap) belonging to a #GdkDrawable.
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*
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* Return value: the ID of @drawable's X resource.
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**/
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XID
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gdk_x11_drawable_get_xid (GdkDrawable *drawable)
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{
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GdkDrawable *impl;
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if (GDK_IS_WINDOW (drawable))
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{
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GdkWindow *window = (GdkWindow *)drawable;
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/* Try to ensure the window has a native window */
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if (!_gdk_window_has_impl (window))
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{
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gdk_window_ensure_native (window);
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/* We sync here to ensure the window is created in the Xserver when
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* this function returns. This is required because the returned XID
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* for this window must be valid immediately, even with another
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* connection to the Xserver */
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gdk_display_sync (gdk_drawable_get_display (window));
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}
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if (!GDK_WINDOW_IS_X11 (window))
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{
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g_warning (G_STRLOC " drawable is not a native X11 window");
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return None;
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}
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impl = ((GdkWindowObject *)drawable)->impl;
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}
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else if (GDK_IS_PIXMAP (drawable))
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impl = ((GdkPixmapObject *)drawable)->impl;
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else
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{
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g_warning (G_STRLOC " drawable is not a pixmap or window");
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return None;
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}
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return ((GdkDrawableImplX11 *)impl)->xid;
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}
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GdkDrawable *
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gdk_x11_window_get_drawable_impl (GdkWindow *window)
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{
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return ((GdkWindowObject *)window)->impl;
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}
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GdkDrawable *
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gdk_x11_pixmap_get_drawable_impl (GdkPixmap *pixmap)
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{
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return ((GdkPixmapObject *)pixmap)->impl;
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}
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#if 0
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static void
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list_formats (XRenderPictFormat *pf)
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{
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gint i;
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for (i=0 ;; i++)
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{
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XRenderPictFormat *pf = XRenderFindFormat (impl->xdisplay, 0, NULL, i);
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if (pf)
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{
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g_print ("%2d R-%#06x/%#06x G-%#06x/%#06x B-%#06x/%#06x A-%#06x/%#06x\n",
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pf->depth,
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pf->direct.red,
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pf->direct.redMask,
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pf->direct.green,
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pf->direct.greenMask,
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pf->direct.blue,
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pf->direct.blueMask,
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pf->direct.alpha,
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pf->direct.alphaMask);
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}
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else
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break;
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}
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}
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#endif
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void
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_gdk_x11_convert_to_format (guchar *src_buf,
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gint src_rowstride,
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guchar *dest_buf,
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gint dest_rowstride,
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GdkX11FormatType dest_format,
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GdkByteOrder dest_byteorder,
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gint width,
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gint height)
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{
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gint i;
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for (i=0; i < height; i++)
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{
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switch (dest_format)
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{
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case GDK_X11_FORMAT_EXACT_MASK:
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{
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memcpy (dest_buf + i * dest_rowstride,
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src_buf + i * src_rowstride,
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width * 4);
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break;
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}
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case GDK_X11_FORMAT_ARGB_MASK:
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{
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guchar *row = src_buf + i * src_rowstride;
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if (((gsize)row & 3) != 0)
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{
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guchar *p = row;
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guint32 *q = (guint32 *)(dest_buf + i * dest_rowstride);
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guchar *end = p + 4 * width;
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while (p < end)
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{
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*q = (p[3] << 24) | (p[0] << 16) | (p[1] << 8) | p[2];
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p += 4;
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q++;
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}
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}
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else
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{
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guint32 *p = (guint32 *)row;
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guint32 *q = (guint32 *)(dest_buf + i * dest_rowstride);
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guint32 *end = p + width;
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#if G_BYTE_ORDER == G_LITTLE_ENDIAN
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if (dest_byteorder == GDK_LSB_FIRST)
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{
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/* ABGR => ARGB */
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while (p < end)
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{
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*q = ( (*p & 0xff00ff00) |
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((*p & 0x000000ff) << 16) |
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((*p & 0x00ff0000) >> 16));
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q++;
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p++;
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}
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}
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else
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{
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/* ABGR => BGRA */
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while (p < end)
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{
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*q = (((*p & 0xff000000) >> 24) |
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((*p & 0x00ffffff) << 8));
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q++;
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p++;
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}
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}
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#else /* G_BYTE_ORDER == G_BIG_ENDIAN */
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if (dest_byteorder == GDK_LSB_FIRST)
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{
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/* RGBA => BGRA */
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while (p < end)
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{
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*q = ( (*p & 0x00ff00ff) |
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((*p & 0x0000ff00) << 16) |
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((*p & 0xff000000) >> 16));
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q++;
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p++;
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}
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}
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else
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{
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/* RGBA => ARGB */
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while (p < end)
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{
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*q = (((*p & 0xffffff00) >> 8) |
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((*p & 0x000000ff) << 24));
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q++;
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p++;
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}
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}
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#endif /* G_BYTE_ORDER*/
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}
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break;
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}
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case GDK_X11_FORMAT_ARGB:
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{
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guchar *p = (src_buf + i * src_rowstride);
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guchar *q = (dest_buf + i * dest_rowstride);
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guchar *end = p + 4 * width;
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guint t1,t2,t3;
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#define MULT(d,c,a,t) G_STMT_START { t = c * a; d = ((t >> 8) + t) >> 8; } G_STMT_END
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if (dest_byteorder == GDK_LSB_FIRST)
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{
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while (p < end)
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{
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MULT(q[0], p[2], p[3], t1);
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MULT(q[1], p[1], p[3], t2);
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MULT(q[2], p[0], p[3], t3);
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q[3] = p[3];
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p += 4;
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q += 4;
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}
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}
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else
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{
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while (p < end)
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{
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q[0] = p[3];
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MULT(q[1], p[0], p[3], t1);
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MULT(q[2], p[1], p[3], t2);
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MULT(q[3], p[2], p[3], t3);
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p += 4;
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q += 4;
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}
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}
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#undef MULT
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break;
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}
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case GDK_X11_FORMAT_NONE:
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g_assert_not_reached ();
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break;
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}
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}
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}
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static void
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gdk_x11_cairo_surface_destroy (void *data)
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{
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GdkDrawableImplX11 *impl = data;
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impl->cairo_surface = NULL;
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}
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gboolean
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_gdk_windowing_set_cairo_surface_size (cairo_surface_t *surface,
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int width,
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int height)
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{
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cairo_xlib_surface_set_size (surface, width, height);
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return TRUE;
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}
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static cairo_surface_t *
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gdk_x11_create_cairo_surface (GdkDrawable *drawable,
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int width,
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int height)
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{
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GdkDrawableImplX11 *impl = GDK_DRAWABLE_IMPL_X11 (drawable);
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GdkVisual *visual;
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visual = gdk_drawable_get_visual (drawable);
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if (visual)
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return cairo_xlib_surface_create (GDK_SCREEN_XDISPLAY (impl->screen),
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impl->xid,
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GDK_VISUAL_XVISUAL (visual),
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width, height);
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else if (gdk_drawable_get_depth (drawable) == 1)
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return cairo_xlib_surface_create_for_bitmap (GDK_SCREEN_XDISPLAY (impl->screen),
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impl->xid,
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GDK_SCREEN_XSCREEN (impl->screen),
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width, height);
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else
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{
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g_warning ("Using Cairo rendering requires the drawable argument to\n"
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"have a specified colormap. All windows have a colormap,\n"
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"however, pixmaps only have colormap by default if they\n"
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"were created with a non-NULL window argument. Otherwise\n"
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"a colormap must be set on them with gdk_drawable_set_colormap");
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return NULL;
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}
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}
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static cairo_surface_t *
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gdk_x11_ref_cairo_surface (GdkDrawable *drawable)
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{
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GdkDrawableImplX11 *impl = GDK_DRAWABLE_IMPL_X11 (drawable);
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if (GDK_IS_WINDOW_IMPL_X11 (drawable) &&
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GDK_WINDOW_DESTROYED (impl->wrapper))
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return NULL;
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if (!impl->cairo_surface)
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{
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int width, height;
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gdk_drawable_get_size (impl->wrapper, &width, &height);
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impl->cairo_surface = gdk_x11_create_cairo_surface (drawable, width, height);
|
|
|
|
if (impl->cairo_surface)
|
|
cairo_surface_set_user_data (impl->cairo_surface, &gdk_x11_cairo_key,
|
|
drawable, gdk_x11_cairo_surface_destroy);
|
|
}
|
|
else
|
|
cairo_surface_reference (impl->cairo_surface);
|
|
|
|
return impl->cairo_surface;
|
|
}
|