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gtk2/gdk/directfb/gdkpixmap-directfb.c
Lionel Landwerlin 65f7b09b39 directfb: fix GdkPixmap creation 
Since GDK has introduced the offscreen window concept, pixmap can be
created using drawables which aren't native windows. This patch fix
this assumption.

Signed-off-by: Lionel Landwerlin <llandwerlin@gmail.com>
2010-08-31 21:08:21 +02:00

308 lines
8.2 KiB
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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
* Copyright (C) 1998-1999 Tor Lillqvist
*
* 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.
*/
/*
* GTK+ DirectFB backend
* Copyright (C) 2001-2002 convergence integrated media GmbH
* Copyright (C) 2002-2004 convergence GmbH
* Written by Denis Oliver Kropp <dok@convergence.de> and
* Sven Neumann <sven@convergence.de>
*/
#include "config.h"
#include "gdk.h"
#include <stdlib.h>
#include <string.h>
#include "gdkdirectfb.h"
#include "gdkprivate-directfb.h"
#include "gdkinternals.h"
#include "gdkpixmap.h"
#include "gdkalias.h"
static void gdk_pixmap_impl_directfb_init (GdkPixmapImplDirectFB *pixmap);
static void gdk_pixmap_impl_directfb_class_init (GdkPixmapImplDirectFBClass *klass);
static void gdk_pixmap_impl_directfb_finalize (GObject *object);
static gpointer parent_class = NULL;
G_DEFINE_TYPE (GdkPixmapImplDirectFB,
gdk_pixmap_impl_directfb,
GDK_TYPE_DRAWABLE_IMPL_DIRECTFB);
GType
_gdk_pixmap_impl_get_type (void)
{
return gdk_pixmap_impl_directfb_get_type ();
}
static void
gdk_pixmap_impl_directfb_init (GdkPixmapImplDirectFB *impl)
{
GdkDrawableImplDirectFB *draw_impl = GDK_DRAWABLE_IMPL_DIRECTFB (impl);
draw_impl->width = 1;
draw_impl->height = 1;
}
static void
gdk_pixmap_impl_directfb_class_init (GdkPixmapImplDirectFBClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->finalize = gdk_pixmap_impl_directfb_finalize;
}
static void
gdk_pixmap_impl_directfb_finalize (GObject *object)
{
if (G_OBJECT_CLASS (parent_class)->finalize)
G_OBJECT_CLASS (parent_class)->finalize (object);
}
GdkPixmap *
_gdk_pixmap_new (GdkDrawable *drawable,
gint width,
gint height,
gint depth)
{
DFBSurfacePixelFormat format;
IDirectFBSurface *surface;
GdkPixmap *pixmap;
GdkDrawableImplDirectFB *draw_impl;
g_return_val_if_fail (drawable == NULL || GDK_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (drawable != NULL || depth != -1, NULL);
g_return_val_if_fail (width > 0 && height > 0, NULL);
if (!drawable)
drawable = _gdk_parent_root;
if (GDK_IS_WINDOW (drawable) && GDK_WINDOW_DESTROYED (drawable))
return NULL;
GDK_NOTE (MISC, g_print ("gdk_pixmap_new: %dx%dx%d\n",
width, height, depth));
if (depth == -1)
depth = gdk_drawable_get_depth (GDK_DRAWABLE (drawable));
switch (depth)
{
case 1:
format = DSPF_A8;
break;
case 8:
format = DSPF_LUT8;
break;
case 15:
format = DSPF_ARGB1555;
break;
case 16:
format = DSPF_RGB16;
break;
case 24:
format = DSPF_RGB24;
break;
case 32:
format = DSPF_RGB32;
break;
default:
g_message ("unimplemented %s for depth %d", G_STRFUNC, depth);
return NULL;
}
if (!(surface =
gdk_display_dfb_create_surface (_gdk_display, format, width, height))) {
g_assert (surface != NULL);
return NULL;
}
pixmap = g_object_new (gdk_pixmap_get_type (), NULL);
draw_impl = GDK_DRAWABLE_IMPL_DIRECTFB (GDK_PIXMAP_OBJECT (pixmap)->impl);
draw_impl->surface = surface;
surface->Clear (surface, 0x0, 0x0, 0x0, 0x0);
surface->GetSize (surface, &draw_impl->width, &draw_impl->height);
surface->GetPixelFormat (surface, &draw_impl->format);
draw_impl->abs_x = draw_impl->abs_y = 0;
GDK_PIXMAP_OBJECT (pixmap)->depth = depth;
return pixmap;
}
GdkPixmap *
_gdk_bitmap_create_from_data (GdkDrawable *drawable,
const gchar *data,
gint width,
gint height)
{
GdkPixmap *pixmap;
g_return_val_if_fail (drawable == NULL || GDK_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (data != NULL, NULL);
g_return_val_if_fail (width > 0 && height > 0, NULL);
GDK_NOTE (MISC, g_print ("gdk_bitmap_create_from_data: %dx%d\n",
width, height));
pixmap = gdk_pixmap_new (drawable, width, height, 1);
#define GET_PIXEL(data,pixel) \
((data[(pixel / 8)] & (0x1 << ((pixel) % 8))) >> ((pixel) % 8))
if (pixmap)
{
guchar *dst;
gint pitch;
IDirectFBSurface *surface;
surface = GDK_DRAWABLE_IMPL_DIRECTFB (GDK_PIXMAP_OBJECT (pixmap)->impl)->surface;
if (surface->Lock (surface, DSLF_WRITE, (void**)(&dst), &pitch) == DFB_OK)
{
gint i, j;
for (i = 0; i < height; i++)
{
for (j = 0; j < width; j++)
{
dst[j] = GET_PIXEL (data, j) * 255;
}
data += (width + 7) / 8;
dst += pitch;
}
surface->Unlock (surface);
}
}
#undef GET_PIXEL
return pixmap;
}
GdkPixmap *
_gdk_pixmap_create_from_data (GdkDrawable *drawable,
const gchar *data,
gint width,
gint height,
gint depth,
const GdkColor *fg,
const GdkColor *bg)
{
GdkPixmap *pixmap;
g_return_val_if_fail (drawable == NULL || GDK_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (data != NULL, NULL);
g_return_val_if_fail (drawable != NULL || depth > 0, NULL);
g_return_val_if_fail (width > 0 && height > 0, NULL);
GDK_NOTE (MISC, g_print ("gdk_pixmap_create_from_data: %dx%dx%d\n",
width, height, depth));
pixmap = gdk_pixmap_new (drawable, width, height, depth);
if (pixmap)
{
IDirectFBSurface *surface;
gchar *dst;
gint pitch;
gint src_pitch;
depth = gdk_drawable_get_depth (pixmap);
src_pitch = width * ((depth + 7) / 8);
surface = GDK_DRAWABLE_IMPL_DIRECTFB (GDK_PIXMAP_OBJECT (pixmap)->impl)->surface;
if (surface->Lock (surface,
DSLF_WRITE, (void**)(&dst), &pitch) == DFB_OK)
{
gint i;
for (i = 0; i < height; i++)
{
memcpy (dst, data, src_pitch);
dst += pitch;
data += src_pitch;
}
surface->Unlock (surface);
}
}
return pixmap;
}
GdkPixmap *
gdk_pixmap_foreign_new (GdkNativeWindow anid)
{
g_warning (" gdk_pixmap_foreign_new unsuporrted \n");
return NULL;
}
GdkPixmap *
gdk_pixmap_foreign_new_for_display (GdkDisplay *display, GdkNativeWindow anid)
{
return gdk_pixmap_foreign_new (anid);
}
GdkPixmap *
gdk_pixmap_foreign_new_for_screen (GdkScreen *screen,
GdkNativeWindow anid,
gint width,
gint height,
gint depth)
{
/*Use the root drawable for now since only one screen */
return gdk_pixmap_new (NULL, width, height, depth);
}
GdkPixmap *
gdk_pixmap_lookup (GdkNativeWindow anid)
{
g_warning (" gdk_pixmap_lookup unsuporrted \n");
return NULL;
}
GdkPixmap *
gdk_pixmap_lookup_for_display (GdkDisplay *display, GdkNativeWindow anid)
{
return gdk_pixmap_lookup (anid);
}
#define __GDK_PIXMAP_X11_C__
#include "gdkaliasdef.c"
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