forked from AuroraMiddleware/gtk
afee2c67c5
Wed Jul 26 12:59:31 2000 Tim Janik <timj@gtk.org>
* *.[hc]: applied patch from Andreas Persenius <ndap@swipnet.se> that
updates the license headers to the GNU Lesser General Public License,
as well as updating the copyright year to 2000.
78 lines
2.7 KiB
C
78 lines
2.7 KiB
C
/* GdkPixbuf library - Image creation from in-memory buffers
|
||
*
|
||
* Copyright (C) 1999 The Free Software Foundation
|
||
*
|
||
* Author: Federico Mena-Quintero <federico@gimp.org>
|
||
*
|
||
* 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.
|
||
*/
|
||
|
||
#include <config.h>
|
||
#include "gdk-pixbuf.h"
|
||
#include "gdk-pixbuf-private.h"
|
||
|
||
|
||
|
||
/**
|
||
* gdk_pixbuf_new_from_data:
|
||
* @data: Image data in 8-bit/sample packed format.
|
||
* @colorspace: Colorspace for the image data.
|
||
* @has_alpha: Whether the data has an opacity channel.
|
||
* @bits_per_sample: Number of bits per sample.
|
||
* @width: Width of the image in pixels.
|
||
* @height: Height of the image in pixels.
|
||
* @rowstride: Distance in bytes between rows.
|
||
* @destroy_fn: Function used to free the data when the pixbuf's reference count
|
||
* drops to zero, or NULL if the data should not be freed.
|
||
* @destroy_fn_data: Closure data to pass to the destroy notification function.
|
||
*
|
||
* Creates a new #GdkPixbuf out of in-memory image data. Currently only RGB
|
||
* images with 8 bits per sample are supported.
|
||
*
|
||
* Return value: A newly-created #GdkPixbuf structure with a reference count of
|
||
* 1.
|
||
**/
|
||
GdkPixbuf *
|
||
gdk_pixbuf_new_from_data (const guchar *data, GdkColorspace colorspace, gboolean has_alpha,
|
||
int bits_per_sample, int width, int height, int rowstride,
|
||
GdkPixbufDestroyNotify destroy_fn, gpointer destroy_fn_data)
|
||
{
|
||
GdkPixbuf *pixbuf;
|
||
|
||
/* Only 8-bit/sample RGB buffers are supported for now */
|
||
|
||
g_return_val_if_fail (data != NULL, NULL);
|
||
g_return_val_if_fail (colorspace == GDK_COLORSPACE_RGB, NULL);
|
||
g_return_val_if_fail (bits_per_sample == 8, NULL);
|
||
g_return_val_if_fail (width > 0, NULL);
|
||
g_return_val_if_fail (height > 0, NULL);
|
||
|
||
pixbuf = g_object_new (GDK_TYPE_PIXBUF, NULL);
|
||
|
||
pixbuf->colorspace = colorspace;
|
||
pixbuf->n_channels = has_alpha ? 4 : 3;
|
||
pixbuf->bits_per_sample = bits_per_sample;
|
||
pixbuf->has_alpha = has_alpha ? TRUE : FALSE;
|
||
pixbuf->width = width;
|
||
pixbuf->height = height;
|
||
pixbuf->rowstride = rowstride;
|
||
pixbuf->pixels = (guchar *) data;
|
||
pixbuf->destroy_fn = destroy_fn;
|
||
pixbuf->destroy_fn_data = destroy_fn_data;
|
||
|
||
return pixbuf;
|
||
}
|