mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-12-27 22:20:24 +00:00
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
|
|
* 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.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
/*
|
|
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
|
|
* file for a list of people on the GTK+ Team. See the ChangeLog
|
|
* files for a list of changes. These files are distributed with
|
|
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "gdkx.h"
|
|
|
|
#include <cairo-xlib.h>
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h> /* for memcpy() */
|
|
|
|
#if defined (HAVE_IPC_H) && defined (HAVE_SHM_H) && defined (HAVE_XSHM_H)
|
|
#define USE_SHM
|
|
#endif
|
|
|
|
#ifdef USE_SHM
|
|
#include <X11/extensions/XShm.h>
|
|
#endif /* USE_SHM */
|
|
|
|
#include "gdkprivate-x11.h"
|
|
#include "gdkdrawable-x11.h"
|
|
#include "gdkpixmap-x11.h"
|
|
#include "gdkscreen-x11.h"
|
|
#include "gdkdisplay-x11.h"
|
|
|
|
|
|
static cairo_surface_t *gdk_x11_ref_cairo_surface (GdkDrawable *drawable);
|
|
static cairo_surface_t *gdk_x11_create_cairo_surface (GdkDrawable *drawable,
|
|
int width,
|
|
int height);
|
|
|
|
static void gdk_x11_set_colormap (GdkDrawable *drawable,
|
|
GdkColormap *colormap);
|
|
|
|
static GdkColormap* gdk_x11_get_colormap (GdkDrawable *drawable);
|
|
static gint gdk_x11_get_depth (GdkDrawable *drawable);
|
|
static GdkScreen * gdk_x11_get_screen (GdkDrawable *drawable);
|
|
static GdkVisual* gdk_x11_get_visual (GdkDrawable *drawable);
|
|
|
|
static void gdk_drawable_impl_x11_finalize (GObject *object);
|
|
|
|
static const cairo_user_data_key_t gdk_x11_cairo_key;
|
|
|
|
G_DEFINE_TYPE (GdkDrawableImplX11, _gdk_drawable_impl_x11, GDK_TYPE_DRAWABLE)
|
|
|
|
static void
|
|
_gdk_drawable_impl_x11_class_init (GdkDrawableImplX11Class *klass)
|
|
{
|
|
GdkDrawableClass *drawable_class = GDK_DRAWABLE_CLASS (klass);
|
|
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
|
|
|
object_class->finalize = gdk_drawable_impl_x11_finalize;
|
|
|
|
drawable_class->ref_cairo_surface = gdk_x11_ref_cairo_surface;
|
|
drawable_class->create_cairo_surface = gdk_x11_create_cairo_surface;
|
|
|
|
drawable_class->set_colormap = gdk_x11_set_colormap;
|
|
drawable_class->get_colormap = gdk_x11_get_colormap;
|
|
|
|
drawable_class->get_depth = gdk_x11_get_depth;
|
|
drawable_class->get_screen = gdk_x11_get_screen;
|
|
drawable_class->get_visual = gdk_x11_get_visual;
|
|
}
|
|
|
|
static void
|
|
_gdk_drawable_impl_x11_init (GdkDrawableImplX11 *impl)
|
|
{
|
|
}
|
|
|
|
static void
|
|
gdk_drawable_impl_x11_finalize (GObject *object)
|
|
{
|
|
gdk_drawable_set_colormap (GDK_DRAWABLE (object), NULL);
|
|
|
|
G_OBJECT_CLASS (_gdk_drawable_impl_x11_parent_class)->finalize (object);
|
|
}
|
|
|
|
/**
|
|
* _gdk_x11_drawable_finish:
|
|
* @drawable: a #GdkDrawableImplX11.
|
|
*
|
|
* Performs necessary cleanup prior to freeing a pixmap or
|
|
* destroying a window.
|
|
**/
|
|
void
|
|
_gdk_x11_drawable_finish (GdkDrawable *drawable)
|
|
{
|
|
GdkDrawableImplX11 *impl = GDK_DRAWABLE_IMPL_X11 (drawable);
|
|
|
|
if (impl->cairo_surface)
|
|
{
|
|
cairo_surface_finish (impl->cairo_surface);
|
|
cairo_surface_set_user_data (impl->cairo_surface, &gdk_x11_cairo_key,
|
|
NULL, NULL);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* _gdk_x11_drawable_update_size:
|
|
* @drawable: a #GdkDrawableImplX11.
|
|
*
|
|
* Updates the state of the drawable (in particular the drawable's
|
|
* cairo surface) when its size has changed.
|
|
**/
|
|
void
|
|
_gdk_x11_drawable_update_size (GdkDrawable *drawable)
|
|
{
|
|
GdkDrawableImplX11 *impl = GDK_DRAWABLE_IMPL_X11 (drawable);
|
|
|
|
if (impl->cairo_surface)
|
|
{
|
|
int width, height;
|
|
|
|
gdk_drawable_get_size (drawable, &width, &height);
|
|
cairo_xlib_surface_set_size (impl->cairo_surface, width, height);
|
|
}
|
|
}
|
|
|
|
/*****************************************************
|
|
* X11 specific implementations of generic functions *
|
|
*****************************************************/
|
|
|
|
static GdkColormap*
|
|
gdk_x11_get_colormap (GdkDrawable *drawable)
|
|
{
|
|
GdkDrawableImplX11 *impl;
|
|
|
|
impl = GDK_DRAWABLE_IMPL_X11 (drawable);
|
|
|
|
return impl->colormap;
|
|
}
|
|
|
|
static void
|
|
gdk_x11_set_colormap (GdkDrawable *drawable,
|
|
GdkColormap *colormap)
|
|
{
|
|
GdkDrawableImplX11 *impl;
|
|
|
|
impl = GDK_DRAWABLE_IMPL_X11 (drawable);
|
|
|
|
if (impl->colormap == colormap)
|
|
return;
|
|
|
|
if (impl->colormap)
|
|
g_object_unref (impl->colormap);
|
|
impl->colormap = colormap;
|
|
if (impl->colormap)
|
|
g_object_ref (impl->colormap);
|
|
}
|
|
|
|
static gint
|
|
gdk_x11_get_depth (GdkDrawable *drawable)
|
|
{
|
|
/* This is a bit bogus but I'm not sure the other way is better */
|
|
|
|
return gdk_drawable_get_depth (GDK_DRAWABLE_IMPL_X11 (drawable)->wrapper);
|
|
}
|
|
|
|
static GdkDrawable *
|
|
get_impl_drawable (GdkDrawable *drawable)
|
|
{
|
|
if (GDK_IS_WINDOW (drawable))
|
|
return ((GdkWindowObject *)drawable)->impl;
|
|
else if (GDK_IS_PIXMAP (drawable))
|
|
return ((GdkPixmapObject *)drawable)->impl;
|
|
else
|
|
{
|
|
g_warning (G_STRLOC " drawable is not a pixmap or window");
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static GdkScreen*
|
|
gdk_x11_get_screen (GdkDrawable *drawable)
|
|
{
|
|
if (GDK_IS_DRAWABLE_IMPL_X11 (drawable))
|
|
return GDK_DRAWABLE_IMPL_X11 (drawable)->screen;
|
|
else
|
|
return GDK_DRAWABLE_IMPL_X11 (get_impl_drawable (drawable))->screen;
|
|
}
|
|
|
|
static GdkVisual*
|
|
gdk_x11_get_visual (GdkDrawable *drawable)
|
|
{
|
|
return gdk_drawable_get_visual (GDK_DRAWABLE_IMPL_X11 (drawable)->wrapper);
|
|
}
|
|
|
|
/**
|
|
* gdk_x11_drawable_get_xdisplay:
|
|
* @drawable: a #GdkDrawable.
|
|
*
|
|
* Returns the display of a #GdkDrawable.
|
|
*
|
|
* Return value: an Xlib <type>Display*</type>.
|
|
**/
|
|
Display *
|
|
gdk_x11_drawable_get_xdisplay (GdkDrawable *drawable)
|
|
{
|
|
if (GDK_IS_DRAWABLE_IMPL_X11 (drawable))
|
|
return GDK_SCREEN_XDISPLAY (GDK_DRAWABLE_IMPL_X11 (drawable)->screen);
|
|
else
|
|
return GDK_SCREEN_XDISPLAY (GDK_DRAWABLE_IMPL_X11 (get_impl_drawable (drawable))->screen);
|
|
}
|
|
|
|
/**
|
|
* gdk_x11_drawable_get_xid:
|
|
* @drawable: a #GdkDrawable.
|
|
*
|
|
* Returns the X resource (window or pixmap) belonging to a #GdkDrawable.
|
|
*
|
|
* Return value: the ID of @drawable's X resource.
|
|
**/
|
|
XID
|
|
gdk_x11_drawable_get_xid (GdkDrawable *drawable)
|
|
{
|
|
GdkDrawable *impl;
|
|
|
|
if (GDK_IS_WINDOW (drawable))
|
|
{
|
|
GdkWindow *window = (GdkWindow *)drawable;
|
|
|
|
/* Try to ensure the window has a native window */
|
|
if (!_gdk_window_has_impl (window))
|
|
{
|
|
gdk_window_ensure_native (window);
|
|
|
|
/* We sync here to ensure the window is created in the Xserver when
|
|
* this function returns. This is required because the returned XID
|
|
* for this window must be valid immediately, even with another
|
|
* connection to the Xserver */
|
|
gdk_display_sync (gdk_drawable_get_display (window));
|
|
}
|
|
|
|
if (!GDK_WINDOW_IS_X11 (window))
|
|
{
|
|
g_warning (G_STRLOC " drawable is not a native X11 window");
|
|
return None;
|
|
}
|
|
|
|
impl = ((GdkWindowObject *)drawable)->impl;
|
|
}
|
|
else if (GDK_IS_PIXMAP (drawable))
|
|
impl = ((GdkPixmapObject *)drawable)->impl;
|
|
else
|
|
{
|
|
g_warning (G_STRLOC " drawable is not a pixmap or window");
|
|
return None;
|
|
}
|
|
|
|
return ((GdkDrawableImplX11 *)impl)->xid;
|
|
}
|
|
|
|
GdkDrawable *
|
|
gdk_x11_window_get_drawable_impl (GdkWindow *window)
|
|
{
|
|
return ((GdkWindowObject *)window)->impl;
|
|
}
|
|
GdkDrawable *
|
|
gdk_x11_pixmap_get_drawable_impl (GdkPixmap *pixmap)
|
|
{
|
|
return ((GdkPixmapObject *)pixmap)->impl;
|
|
}
|
|
|
|
#if 0
|
|
static void
|
|
list_formats (XRenderPictFormat *pf)
|
|
{
|
|
gint i;
|
|
|
|
for (i=0 ;; i++)
|
|
{
|
|
XRenderPictFormat *pf = XRenderFindFormat (impl->xdisplay, 0, NULL, i);
|
|
if (pf)
|
|
{
|
|
g_print ("%2d R-%#06x/%#06x G-%#06x/%#06x B-%#06x/%#06x A-%#06x/%#06x\n",
|
|
pf->depth,
|
|
pf->direct.red,
|
|
pf->direct.redMask,
|
|
pf->direct.green,
|
|
pf->direct.greenMask,
|
|
pf->direct.blue,
|
|
pf->direct.blueMask,
|
|
pf->direct.alpha,
|
|
pf->direct.alphaMask);
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
void
|
|
_gdk_x11_convert_to_format (guchar *src_buf,
|
|
gint src_rowstride,
|
|
guchar *dest_buf,
|
|
gint dest_rowstride,
|
|
GdkX11FormatType dest_format,
|
|
GdkByteOrder dest_byteorder,
|
|
gint width,
|
|
gint height)
|
|
{
|
|
gint i;
|
|
|
|
for (i=0; i < height; i++)
|
|
{
|
|
switch (dest_format)
|
|
{
|
|
case GDK_X11_FORMAT_EXACT_MASK:
|
|
{
|
|
memcpy (dest_buf + i * dest_rowstride,
|
|
src_buf + i * src_rowstride,
|
|
width * 4);
|
|
break;
|
|
}
|
|
case GDK_X11_FORMAT_ARGB_MASK:
|
|
{
|
|
guchar *row = src_buf + i * src_rowstride;
|
|
if (((gsize)row & 3) != 0)
|
|
{
|
|
guchar *p = row;
|
|
guint32 *q = (guint32 *)(dest_buf + i * dest_rowstride);
|
|
guchar *end = p + 4 * width;
|
|
|
|
while (p < end)
|
|
{
|
|
*q = (p[3] << 24) | (p[0] << 16) | (p[1] << 8) | p[2];
|
|
p += 4;
|
|
q++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
guint32 *p = (guint32 *)row;
|
|
guint32 *q = (guint32 *)(dest_buf + i * dest_rowstride);
|
|
guint32 *end = p + width;
|
|
|
|
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
|
|
if (dest_byteorder == GDK_LSB_FIRST)
|
|
{
|
|
/* ABGR => ARGB */
|
|
|
|
while (p < end)
|
|
{
|
|
*q = ( (*p & 0xff00ff00) |
|
|
((*p & 0x000000ff) << 16) |
|
|
((*p & 0x00ff0000) >> 16));
|
|
q++;
|
|
p++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* ABGR => BGRA */
|
|
|
|
while (p < end)
|
|
{
|
|
*q = (((*p & 0xff000000) >> 24) |
|
|
((*p & 0x00ffffff) << 8));
|
|
q++;
|
|
p++;
|
|
}
|
|
}
|
|
#else /* G_BYTE_ORDER == G_BIG_ENDIAN */
|
|
if (dest_byteorder == GDK_LSB_FIRST)
|
|
{
|
|
/* RGBA => BGRA */
|
|
|
|
while (p < end)
|
|
{
|
|
*q = ( (*p & 0x00ff00ff) |
|
|
((*p & 0x0000ff00) << 16) |
|
|
((*p & 0xff000000) >> 16));
|
|
q++;
|
|
p++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* RGBA => ARGB */
|
|
|
|
while (p < end)
|
|
{
|
|
*q = (((*p & 0xffffff00) >> 8) |
|
|
((*p & 0x000000ff) << 24));
|
|
q++;
|
|
p++;
|
|
}
|
|
}
|
|
#endif /* G_BYTE_ORDER*/
|
|
}
|
|
break;
|
|
}
|
|
case GDK_X11_FORMAT_ARGB:
|
|
{
|
|
guchar *p = (src_buf + i * src_rowstride);
|
|
guchar *q = (dest_buf + i * dest_rowstride);
|
|
guchar *end = p + 4 * width;
|
|
guint t1,t2,t3;
|
|
|
|
#define MULT(d,c,a,t) G_STMT_START { t = c * a; d = ((t >> 8) + t) >> 8; } G_STMT_END
|
|
|
|
if (dest_byteorder == GDK_LSB_FIRST)
|
|
{
|
|
while (p < end)
|
|
{
|
|
MULT(q[0], p[2], p[3], t1);
|
|
MULT(q[1], p[1], p[3], t2);
|
|
MULT(q[2], p[0], p[3], t3);
|
|
q[3] = p[3];
|
|
p += 4;
|
|
q += 4;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
while (p < end)
|
|
{
|
|
q[0] = p[3];
|
|
MULT(q[1], p[0], p[3], t1);
|
|
MULT(q[2], p[1], p[3], t2);
|
|
MULT(q[3], p[2], p[3], t3);
|
|
p += 4;
|
|
q += 4;
|
|
}
|
|
}
|
|
#undef MULT
|
|
break;
|
|
}
|
|
case GDK_X11_FORMAT_NONE:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gdk_x11_cairo_surface_destroy (void *data)
|
|
{
|
|
GdkDrawableImplX11 *impl = data;
|
|
|
|
impl->cairo_surface = NULL;
|
|
}
|
|
|
|
gboolean
|
|
_gdk_windowing_set_cairo_surface_size (cairo_surface_t *surface,
|
|
int width,
|
|
int height)
|
|
{
|
|
cairo_xlib_surface_set_size (surface, width, height);
|
|
return TRUE;
|
|
}
|
|
|
|
static cairo_surface_t *
|
|
gdk_x11_create_cairo_surface (GdkDrawable *drawable,
|
|
int width,
|
|
int height)
|
|
{
|
|
GdkDrawableImplX11 *impl = GDK_DRAWABLE_IMPL_X11 (drawable);
|
|
GdkVisual *visual;
|
|
|
|
visual = gdk_drawable_get_visual (drawable);
|
|
if (visual)
|
|
return cairo_xlib_surface_create (GDK_SCREEN_XDISPLAY (impl->screen),
|
|
impl->xid,
|
|
GDK_VISUAL_XVISUAL (visual),
|
|
width, height);
|
|
else if (gdk_drawable_get_depth (drawable) == 1)
|
|
return cairo_xlib_surface_create_for_bitmap (GDK_SCREEN_XDISPLAY (impl->screen),
|
|
impl->xid,
|
|
GDK_SCREEN_XSCREEN (impl->screen),
|
|
width, height);
|
|
else
|
|
{
|
|
g_warning ("Using Cairo rendering requires the drawable argument to\n"
|
|
"have a specified colormap. All windows have a colormap,\n"
|
|
"however, pixmaps only have colormap by default if they\n"
|
|
"were created with a non-NULL window argument. Otherwise\n"
|
|
"a colormap must be set on them with gdk_drawable_set_colormap");
|
|
return NULL;
|
|
}
|
|
|
|
}
|
|
|
|
static cairo_surface_t *
|
|
gdk_x11_ref_cairo_surface (GdkDrawable *drawable)
|
|
{
|
|
GdkDrawableImplX11 *impl = GDK_DRAWABLE_IMPL_X11 (drawable);
|
|
|
|
if (GDK_IS_WINDOW_IMPL_X11 (drawable) &&
|
|
GDK_WINDOW_DESTROYED (impl->wrapper))
|
|
return NULL;
|
|
|
|
if (!impl->cairo_surface)
|
|
{
|
|
int width, height;
|
|
|
|
gdk_drawable_get_size (impl->wrapper, &width, &height);
|
|
|
|
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;
|
|
}
|