netsurf/atari/bitmap.h

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/*
* Copyright 2010 Ole Loots <ole@monochrom.net>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* NetSurf 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef NS_ATARI_BITMAP_H
#define NS_ATARI_BITMAP_H
#define BITMAP_SHRINK 0
#define BITMAP_GROW 0x01
struct bitmap {
int width;
int height;
uint8_t *pixdata;
bool opaque;
short bpp; /* number of BYTES! per pixel */
size_t rowstride;
struct bitmap * resized;
};
#define NS_BMP_DEFAULT_BPP 4
/* calculate MFDB compatible rowstride (in number of pixels!) */
#define MFDB_STRIDE( w ) (((w & 15) != 0) ? (w | 15)+1 : w)
void * bitmap_create_ex( int w, int h, short bpp, int rowstride, unsigned int state, void * pixdata );
void bitmap_to_mfdb(void * bitmap, MFDB * out);
void * bitmap_realloc( int w, int h, short bpp, int rowstride, unsigned int state, void * bmp );
size_t bitmap_buffer_size( void * bitmap ) ;
#endif