forked from AuroraMiddleware/gtk
438 lines
10 KiB
C
438 lines
10 KiB
C
/* GDK - The 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.
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*/
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/*
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* GTK+ DirectFB backend
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* Copyright (C) 2001-2002 convergence integrated media GmbH
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* Copyright (C) 2002-2004 convergence GmbH
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* Written by Denis Oliver Kropp <dok@convergence.de> and
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* Sven Neumann <sven@convergence.de>
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*/
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#include <config.h>
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#include "gdk.h"
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#include "gdkdirectfb.h"
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#include "gdkprivate-directfb.h"
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#include "gdkinternals.h"
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#include "gdkimage.h"
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#include "gdkalias.h"
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static GList *image_list = NULL;
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static gpointer parent_class = NULL;
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static void gdk_directfb_image_destroy (GdkImage *image);
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static void gdk_image_init (GdkImage *image);
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static void gdk_image_class_init (GdkImageClass *klass);
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static void gdk_image_finalize (GObject *object);
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GType
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gdk_image_get_type (void)
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{
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static GType object_type = 0;
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if (!object_type)
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{
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static const GTypeInfo object_info =
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{
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sizeof (GdkImageClass),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) gdk_image_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GdkImage),
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0, /* n_preallocs */
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(GInstanceInitFunc) gdk_image_init,
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};
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object_type = g_type_register_static (G_TYPE_OBJECT,
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"GdkImage",
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&object_info, 0);
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}
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return object_type;
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}
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static void
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gdk_image_init (GdkImage *image)
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{
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image->windowing_data = g_new0 (GdkImageDirectFB, 1);
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image->mem = NULL;
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image_list = g_list_prepend (image_list, image);
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}
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static void
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gdk_image_class_init (GdkImageClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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object_class->finalize = gdk_image_finalize;
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}
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static void
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gdk_image_finalize (GObject *object)
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{
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GdkImage *image;
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image = GDK_IMAGE (object);
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image_list = g_list_remove (image_list, image);
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if (image->depth == 1)
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g_free (image->mem);
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gdk_directfb_image_destroy (image);
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if (G_OBJECT_CLASS (parent_class)->finalize)
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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/* this function is called from the atexit handler! */
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void
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_gdk_image_exit (void)
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{
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GObject *image;
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while (image_list)
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{
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image = image_list->data;
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gdk_image_finalize (image);
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}
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}
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GdkImage *
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gdk_image_new_bitmap (GdkVisual *visual,
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gpointer data,
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gint w,
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gint h)
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{
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GdkImage *image;
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GdkImageDirectFB *private;
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image = g_object_new (gdk_image_get_type (), NULL);
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private = image->windowing_data;
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image->type = GDK_IMAGE_SHARED;
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image->visual = visual;
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image->width = w;
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image->height = h;
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image->depth = 1;
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GDK_NOTE (MISC, g_print ("gdk_image_new_bitmap: %dx%d\n", w, h));
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g_message ("not fully implemented %s", G_GNUC_FUNCTION);
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image->bpl = (w + 7) / 8;
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image->mem = g_malloc (image->bpl * h);
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#if G_BYTE_ORDER == G_BIG_ENDIAN
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image->byte_order = GDK_MSB_FIRST;
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#else
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image->byte_order = GDK_LSB_FIRST;
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#endif
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image->bpp = 1;
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return image;
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}
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void
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_gdk_windowing_image_init (void)
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{
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}
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GdkImage*
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_gdk_image_new_for_depth (GdkScreen *screen,
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GdkImageType type,
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GdkVisual *visual,
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gint width,
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gint height,
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gint depth)
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{
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GdkImage *image;
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GdkImageDirectFB *private;
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DFBResult ret;
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gint pitch;
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DFBSurfacePixelFormat format;
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IDirectFBSurface *surface;
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if (type == GDK_IMAGE_FASTEST || type == GDK_IMAGE_NORMAL)
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type = GDK_IMAGE_SHARED;
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if (visual)
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depth = visual->depth;
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switch (depth)
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{
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case 8:
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format = DSPF_LUT8;
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break;
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case 15:
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format = DSPF_ARGB1555;
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break;
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case 16:
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format = DSPF_RGB16;
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break;
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case 24:
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format = DSPF_RGB32;
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break;
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case 32:
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format = DSPF_ARGB;
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break;
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default:
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g_message ("unimplemented %s for depth %d", G_GNUC_FUNCTION, depth);
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return NULL;
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}
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surface = gdk_display_dfb_create_surface(_gdk_display,format,width,height);
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if (!surface)
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{
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return NULL;
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}
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surface->GetPixelFormat( surface, &format );
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image = g_object_new (gdk_image_get_type (), NULL);
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private = image->windowing_data;
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private->surface = surface;
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surface->Lock( surface, DSLF_WRITE, &image->mem, &pitch );
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image->type = type;
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image->visual = visual;
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#if G_BYTE_ORDER == G_BIG_ENDIAN
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image->byte_order = GDK_MSB_FIRST;
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#else
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image->byte_order = GDK_LSB_FIRST;
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#endif
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image->width = width;
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image->height = height;
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image->depth = depth;
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image->bpp = DFB_BYTES_PER_PIXEL (format);
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image->bpl = pitch;
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image->bits_per_pixel = DFB_BITS_PER_PIXEL (format);
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image_list = g_list_prepend (image_list, image);
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return image;
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}
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GdkImage*
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_gdk_directfb_copy_to_image (GdkDrawable *drawable,
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GdkImage *image,
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gint src_x,
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gint src_y,
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gint dest_x,
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gint dest_y,
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gint width,
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gint height)
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{
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GdkDrawableImplDirectFB *impl;
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GdkImageDirectFB *private;
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int pitch;
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DFBRectangle rect = { src_x, src_y, width, height };
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IDirectFBDisplayLayer *layer = _gdk_display->layer;
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g_return_val_if_fail (GDK_IS_DRAWABLE_IMPL_DIRECTFB (drawable), NULL);
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g_return_val_if_fail (image != NULL || (dest_x == 0 && dest_y == 0), NULL);
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impl = GDK_DRAWABLE_IMPL_DIRECTFB (drawable);
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if (impl->wrapper == _gdk_parent_root)
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{
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DFBResult ret;
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ret = layer->SetCooperativeLevel (layer, DLSCL_EXCLUSIVE);
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if (ret)
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{
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DirectFBError ("_gdk_directfb_copy_to_image - SetCooperativeLevel",
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ret);
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return NULL;
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}
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ret = layer->GetSurface (layer, &impl->surface);
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if (ret)
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{
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layer->SetCooperativeLevel (layer, DLSCL_SHARED);
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DirectFBError ("_gdk_directfb_copy_to_image - GetSurface", ret);
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return NULL;
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}
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}
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if (! impl->surface)
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return NULL;
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if (!image)
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image = gdk_image_new (GDK_IMAGE_NORMAL,
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gdk_visual_get_system (), width, height);
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private = image->windowing_data;
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private->surface->Unlock( private->surface );
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private->surface->Blit( private->surface,
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impl->surface, &rect, dest_x, dest_y );
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private->surface->Lock( private->surface, DSLF_WRITE, &image->mem, &pitch );
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image->bpl = pitch;
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if (impl->wrapper == _gdk_parent_root)
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{
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impl->surface->Release (impl->surface);
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impl->surface = NULL;
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layer->SetCooperativeLevel (layer, DLSCL_SHARED);
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}
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return image;
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}
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guint32
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gdk_image_get_pixel (GdkImage *image,
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gint x,
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gint y)
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{
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guint32 pixel = 0;
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g_return_val_if_fail (GDK_IS_IMAGE (image), 0);
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if (!(x >= 0 && x < image->width && y >= 0 && y < image->height))
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return 0;
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if (image->depth == 1)
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pixel = (((guchar *) image->mem)[y * image->bpl + (x >> 3)] & (1 << (7 - (x & 0x7)))) != 0;
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else
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{
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guchar *pixelp = (guchar *) image->mem + y * image->bpl + x * image->bpp;
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switch (image->bpp)
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{
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case 1:
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pixel = *pixelp;
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break;
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case 2:
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pixel = pixelp[0] | (pixelp[1] << 8);
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break;
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case 3:
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pixel = pixelp[0] | (pixelp[1] << 8) | (pixelp[2] << 16);
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break;
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case 4:
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pixel = pixelp[0] | (pixelp[1] << 8) | (pixelp[2] << 16);
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break;
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}
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}
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return pixel;
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}
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void
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gdk_image_put_pixel (GdkImage *image,
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gint x,
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gint y,
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guint32 pixel)
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{
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g_return_if_fail (image != NULL);
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if (!(x >= 0 && x < image->width && y >= 0 && y < image->height))
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return;
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if (image->depth == 1)
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if (pixel & 1)
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((guchar *) image->mem)[y * image->bpl + (x >> 3)] |= (1 << (7 - (x & 0x7)));
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else
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((guchar *) image->mem)[y * image->bpl + (x >> 3)] &= ~(1 << (7 - (x & 0x7)));
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else
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{
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guchar *pixelp = (guchar *) image->mem + y * image->bpl + x * image->bpp;
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switch (image->bpp)
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{
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case 4:
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pixelp[3] = 0xFF;
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case 3:
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pixelp[2] = ((pixel >> 16) & 0xFF);
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case 2:
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pixelp[1] = ((pixel >> 8) & 0xFF);
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case 1:
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pixelp[0] = (pixel & 0xFF);
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}
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}
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}
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static void
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gdk_directfb_image_destroy (GdkImage *image)
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{
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GdkImageDirectFB *private;
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g_return_if_fail (GDK_IS_IMAGE (image));
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private = image->windowing_data;
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if (!private)
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return;
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GDK_NOTE (MISC, g_print ("gdk_directfb_image_destroy: %#x\n",
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(guint) private->surface));
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private->surface->Unlock( private->surface );
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private->surface->Release( private->surface );
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g_free (private);
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image->windowing_data = NULL;
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}
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gint
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_gdk_windowing_get_bits_for_depth (GdkDisplay *display,
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gint depth)
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{
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switch (depth)
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{
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case 1:
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case 8:
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return 8;
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case 15:
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case 16:
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return 16;
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case 24:
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case 32:
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return 32;
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}
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return 0;
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}
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#define __GDK_IMAGE_X11_C__
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#include "gdkaliasdef.c"
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