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/* Libart_LGPL - library of basic graphic primitives
* Copyright (C) 1998 Raph Levien
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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 "art_pixbuf.h"
#include "art_misc.h"
#include <string.h>
/**
* art_pixbuf_new_rgb_dnotify: Create a new RGB #ArtPixBuf with explicit destroy notification.
* @pixels: A buffer containing the actual pixel data.
* @width: The width of the pixbuf.
* @height: The height of the pixbuf.
* @rowstride: The rowstride of the pixbuf.
* @dfunc_data: The private data passed to @dfunc.
* @dfunc: The destroy notification function.
*
* Creates a generic data structure for holding a buffer of RGB
* pixels. It is possible to think of an #ArtPixBuf as a
* virtualization over specific pixel buffer formats.
*
* @dfunc is called with @dfunc_data and @pixels as arguments when the
* #ArtPixBuf is destroyed. Using a destroy notification function
* allows a wide range of memory management disciplines for the pixel
* memory. A NULL value for @dfunc is also allowed and means that no
* special action will be taken on destruction.
*
* Return value: The newly created #ArtPixBuf.
**/
ArtPixBuf *
art_pixbuf_new_rgb_dnotify (art_u8 *pixels, int width, int height, int rowstride,
void *dfunc_data, ArtDestroyNotify dfunc)
{
ArtPixBuf *pixbuf;
pixbuf = art_new (ArtPixBuf, 1);
pixbuf->format = ART_PIX_RGB;
pixbuf->n_channels = 3;
pixbuf->has_alpha = 0;
pixbuf->bits_per_sample = 8;
pixbuf->pixels = (art_u8 *) pixels;
pixbuf->width = width;
pixbuf->height = height;
pixbuf->rowstride = rowstride;
pixbuf->destroy_data = dfunc_data;
pixbuf->destroy = dfunc;
return pixbuf;
}
/**
* art_pixbuf_new_rgba_dnotify: Create a new RGBA #ArtPixBuf with explicit destroy notification.
* @pixels: A buffer containing the actual pixel data.
* @width: The width of the pixbuf.
* @height: The height of the pixbuf.
* @rowstride: The rowstride of the pixbuf.
* @dfunc_data: The private data passed to @dfunc.
* @dfunc: The destroy notification function.
*
* Creates a generic data structure for holding a buffer of RGBA
* pixels. It is possible to think of an #ArtPixBuf as a
* virtualization over specific pixel buffer formats.
*
* @dfunc is called with @dfunc_data and @pixels as arguments when the
* #ArtPixBuf is destroyed. Using a destroy notification function
* allows a wide range of memory management disciplines for the pixel
* memory. A NULL value for @dfunc is also allowed and means that no
* special action will be taken on destruction.
*
* Return value: The newly created #ArtPixBuf.
**/
ArtPixBuf *
art_pixbuf_new_rgba_dnotify (art_u8 *pixels, int width, int height, int rowstride,
void *dfunc_data, ArtDestroyNotify dfunc)
{
ArtPixBuf *pixbuf;
pixbuf = art_new (ArtPixBuf, 1);
pixbuf->format = ART_PIX_RGB;
pixbuf->n_channels = 4;
pixbuf->has_alpha = 1;
pixbuf->bits_per_sample = 8;
pixbuf->pixels = (art_u8 *) pixels;
pixbuf->width = width;
pixbuf->height = height;
pixbuf->rowstride = rowstride;
pixbuf->destroy_data = dfunc_data;
pixbuf->destroy = dfunc;
return pixbuf;
}
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