gtk2/gdk/directfb/gdkimage-directfb.c

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2006-02-05 04:04:29 +00:00
/* 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.
*
* 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 "gdkdirectfb.h"
#include "gdkprivate-directfb.h"
#include "gdkinternals.h"
#include "gdkimage.h"
#include "gdkalias.h"
static GList *image_list = NULL;
static gpointer parent_class = NULL;
static void gdk_directfb_image_destroy (GdkImage *image);
static void gdk_image_init (GdkImage *image);
static void gdk_image_class_init (GdkImageClass *klass);
static void gdk_image_finalize (GObject *object);
GType
gdk_image_get_type (void)
{
static GType object_type = 0;
if (!object_type)
{
static const GTypeInfo object_info =
{
sizeof (GdkImageClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gdk_image_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GdkImage),
0, /* n_preallocs */
(GInstanceInitFunc) gdk_image_init,
};
object_type = g_type_register_static (G_TYPE_OBJECT,
"GdkImage",
&object_info, 0);
}
return object_type;
}
static void
gdk_image_init (GdkImage *image)
{
image->windowing_data = g_new0 (GdkImageDirectFB, 1);
image->mem = NULL;
image_list = g_list_prepend (image_list, image);
}
static void
gdk_image_class_init (GdkImageClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->finalize = gdk_image_finalize;
}
static void
gdk_image_finalize (GObject *object)
{
GdkImage *image;
image = GDK_IMAGE (object);
image_list = g_list_remove (image_list, image);
if (image->depth == 1)
g_free (image->mem);
gdk_directfb_image_destroy (image);
if (G_OBJECT_CLASS (parent_class)->finalize)
G_OBJECT_CLASS (parent_class)->finalize (object);
}
/* this function is called from the atexit handler! */
void
_gdk_image_exit (void)
{
GObject *image;
while (image_list)
{
image = image_list->data;
gdk_image_finalize (image);
}
}
GdkImage *
gdk_image_new_bitmap (GdkVisual *visual,
gpointer data,
gint w,
gint h)
{
GdkImage *image;
GdkImageDirectFB *private;
image = g_object_new (gdk_image_get_type (), NULL);
private = image->windowing_data;
image->type = GDK_IMAGE_SHARED;
image->visual = visual;
image->width = w;
image->height = h;
image->depth = 1;
GDK_NOTE (MISC, g_print ("gdk_image_new_bitmap: %dx%d\n", w, h));
g_message ("not fully implemented %s", G_GNUC_FUNCTION);
image->bpl = (w + 7) / 8;
image->mem = g_malloc (image->bpl * h);
#if G_BYTE_ORDER == G_BIG_ENDIAN
image->byte_order = GDK_MSB_FIRST;
#else
image->byte_order = GDK_LSB_FIRST;
#endif
image->bpp = 1;
return image;
}
void
_gdk_windowing_image_init (void)
{
}
GdkImage*
_gdk_image_new_for_depth (GdkScreen *screen,
GdkImageType type,
GdkVisual *visual,
gint width,
gint height,
gint depth)
{
GdkImage *image;
GdkImageDirectFB *private;
DFBResult ret;
gint pitch;
DFBSurfacePixelFormat format;
IDirectFBSurface *surface;
if (type == GDK_IMAGE_FASTEST || type == GDK_IMAGE_NORMAL)
type = GDK_IMAGE_SHARED;
if (visual)
depth = visual->depth;
switch (depth)
{
case 8:
format = DSPF_LUT8;
break;
case 15:
format = DSPF_ARGB1555;
break;
case 16:
format = DSPF_RGB16;
break;
case 24:
format = DSPF_RGB32;
break;
case 32:
format = DSPF_ARGB;
break;
default:
g_message ("unimplemented %s for depth %d", G_GNUC_FUNCTION, depth);
return NULL;
}
surface = gdk_display_dfb_create_surface(_gdk_display,format,width,height);
if (!surface)
{
return NULL;
}
surface->GetPixelFormat( surface, &format );
image = g_object_new (gdk_image_get_type (), NULL);
private = image->windowing_data;
private->surface = surface;
surface->Lock( surface, DSLF_WRITE, &image->mem, &pitch );
image->type = type;
image->visual = visual;
#if G_BYTE_ORDER == G_BIG_ENDIAN
image->byte_order = GDK_MSB_FIRST;
#else
image->byte_order = GDK_LSB_FIRST;
#endif
image->width = width;
image->height = height;
image->depth = depth;
image->bpp = DFB_BYTES_PER_PIXEL (format);
image->bpl = pitch;
image->bits_per_pixel = DFB_BITS_PER_PIXEL (format);
image_list = g_list_prepend (image_list, image);
return image;
}
GdkImage*
_gdk_directfb_copy_to_image (GdkDrawable *drawable,
GdkImage *image,
gint src_x,
gint src_y,
gint dest_x,
gint dest_y,
gint width,
gint height)
{
GdkDrawableImplDirectFB *impl;
GdkImageDirectFB *private;
int pitch;
DFBRectangle rect = { src_x, src_y, width, height };
IDirectFBDisplayLayer *layer = _gdk_display->layer;
g_return_val_if_fail (GDK_IS_DRAWABLE_IMPL_DIRECTFB (drawable), NULL);
g_return_val_if_fail (image != NULL || (dest_x == 0 && dest_y == 0), NULL);
impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
if (impl->wrapper == _gdk_parent_root)
{
DFBResult ret;
ret = layer->SetCooperativeLevel (layer, DLSCL_EXCLUSIVE);
if (ret)
{
DirectFBError ("_gdk_directfb_copy_to_image - SetCooperativeLevel",
ret);
return NULL;
}
ret = layer->GetSurface (layer, &impl->surface);
if (ret)
{
layer->SetCooperativeLevel (layer, DLSCL_SHARED);
DirectFBError ("_gdk_directfb_copy_to_image - GetSurface", ret);
return NULL;
}
}
if (! impl->surface)
return NULL;
if (!image)
image = gdk_image_new (GDK_IMAGE_NORMAL,
gdk_visual_get_system (), width, height);
private = image->windowing_data;
private->surface->Unlock( private->surface );
private->surface->Blit( private->surface,
impl->surface, &rect, dest_x, dest_y );
private->surface->Lock( private->surface, DSLF_WRITE, &image->mem, &pitch );
image->bpl = pitch;
if (impl->wrapper == _gdk_parent_root)
{
impl->surface->Release (impl->surface);
impl->surface = NULL;
layer->SetCooperativeLevel (layer, DLSCL_SHARED);
}
return image;
}
guint32
gdk_image_get_pixel (GdkImage *image,
gint x,
gint y)
{
guint32 pixel = 0;
g_return_val_if_fail (GDK_IS_IMAGE (image), 0);
if (!(x >= 0 && x < image->width && y >= 0 && y < image->height))
return 0;
if (image->depth == 1)
pixel = (((guchar *) image->mem)[y * image->bpl + (x >> 3)] & (1 << (7 - (x & 0x7)))) != 0;
else
{
guchar *pixelp = (guchar *) image->mem + y * image->bpl + x * image->bpp;
switch (image->bpp)
{
case 1:
pixel = *pixelp;
break;
case 2:
pixel = pixelp[0] | (pixelp[1] << 8);
break;
case 3:
pixel = pixelp[0] | (pixelp[1] << 8) | (pixelp[2] << 16);
break;
case 4:
pixel = pixelp[0] | (pixelp[1] << 8) | (pixelp[2] << 16);
break;
}
}
return pixel;
}
void
gdk_image_put_pixel (GdkImage *image,
gint x,
gint y,
guint32 pixel)
{
g_return_if_fail (image != NULL);
if (!(x >= 0 && x < image->width && y >= 0 && y < image->height))
return;
if (image->depth == 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
{
guchar *pixelp = (guchar *) image->mem + y * image->bpl + x * image->bpp;
switch (image->bpp)
{
case 4:
pixelp[3] = 0xFF;
case 3:
pixelp[2] = ((pixel >> 16) & 0xFF);
case 2:
pixelp[1] = ((pixel >> 8) & 0xFF);
case 1:
pixelp[0] = (pixel & 0xFF);
}
}
}
static void
gdk_directfb_image_destroy (GdkImage *image)
{
GdkImageDirectFB *private;
g_return_if_fail (GDK_IS_IMAGE (image));
private = image->windowing_data;
if (!private)
return;
GDK_NOTE (MISC, g_print ("gdk_directfb_image_destroy: %#x\n",
(guint) private->surface));
private->surface->Unlock( private->surface );
private->surface->Release( private->surface );
g_free (private);
image->windowing_data = NULL;
}
gint
_gdk_windowing_get_bits_for_depth (GdkDisplay *display,
gint depth)
{
switch (depth)
{
case 1:
case 8:
return 8;
case 15:
case 16:
return 16;
case 24:
case 32:
return 32;
}
return 0;
}
#define __GDK_IMAGE_X11_C__
#include "gdkaliasdef.c"