зеркало из https://github.com/mozilla/gecko-dev.git
105 строки
2.9 KiB
C
105 строки
2.9 KiB
C
/* 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.
|
|
*/
|
|
|
|
#ifndef __ART_PIXBUF_H__
|
|
#define __ART_PIXBUF_H__
|
|
|
|
/* A generic data structure for holding a buffer of pixels. One way
|
|
to think about this module is as a virtualization over specific
|
|
pixel buffer formats. */
|
|
|
|
#ifdef LIBART_COMPILATION
|
|
#include "art_misc.h"
|
|
#else
|
|
#include <libart_lgpl/art_misc.h>
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
typedef void (*ArtDestroyNotify) (void *func_data, void *data);
|
|
|
|
typedef struct _ArtPixBuf ArtPixBuf;
|
|
|
|
typedef enum {
|
|
ART_PIX_RGB
|
|
/* gray, cmyk, lab, ... ? */
|
|
} ArtPixFormat;
|
|
|
|
|
|
/* The pixel buffer consists of width * height pixels, each of which
|
|
has n_channels samples. It is stored in simple packed format. */
|
|
|
|
struct _ArtPixBuf {
|
|
/*< public >*/
|
|
ArtPixFormat format;
|
|
int n_channels;
|
|
int has_alpha;
|
|
int bits_per_sample;
|
|
|
|
art_u8 *pixels;
|
|
int width;
|
|
int height;
|
|
int rowstride;
|
|
void *destroy_data;
|
|
ArtDestroyNotify destroy;
|
|
};
|
|
|
|
/* allocate an ArtPixBuf from art_alloc()ed pixels (automated destruction) */
|
|
ArtPixBuf *
|
|
art_pixbuf_new_rgb (art_u8 *pixels, int width, int height, int rowstride);
|
|
|
|
ArtPixBuf *
|
|
art_pixbuf_new_rgba (art_u8 *pixels, int width, int height, int rowstride);
|
|
|
|
/* allocate an ArtPixBuf from constant pixels (no destruction) */
|
|
ArtPixBuf *
|
|
art_pixbuf_new_const_rgb (const art_u8 *pixels, int width, int height, int rowstride);
|
|
|
|
ArtPixBuf *
|
|
art_pixbuf_new_const_rgba (const art_u8 *pixels, int width, int height, int rowstride);
|
|
|
|
/* allocate an ArtPixBuf and notify creator upon destruction */
|
|
ArtPixBuf *
|
|
art_pixbuf_new_rgb_dnotify (art_u8 *pixels, int width, int height, int rowstride,
|
|
void *dfunc_data, ArtDestroyNotify dfunc);
|
|
|
|
ArtPixBuf *
|
|
art_pixbuf_new_rgba_dnotify (art_u8 *pixels, int width, int height, int rowstride,
|
|
void *dfunc_data, ArtDestroyNotify dfunc);
|
|
|
|
/* free an ArtPixBuf with destroy notification */
|
|
void
|
|
art_pixbuf_free (ArtPixBuf *pixbuf);
|
|
|
|
/* deprecated function, use the _dnotify variants for allocation instead */
|
|
void
|
|
art_pixbuf_free_shallow (ArtPixBuf *pixbuf);
|
|
|
|
ArtPixBuf *
|
|
art_pixbuf_duplicate (const ArtPixBuf *pixbuf);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|