ref: 57c5cda834b84dbec0f4898427bf4283dc2c327d
dir: /jbig2_image.c/
/*
jbig2dec
Copyright (c) 2001 artofcode LLC.
This program 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; either version 2 of the License, or
(at your option) any later version.
$Id: jbig2_image.c,v 1.3 2002/05/08 02:36:04 giles Exp $
*/
#include <stdio.h>
#include <stdlib.h>
#include "jbig2dec.h"
#include "jbig2_image.h"
/* allocate a Jbig2Image structure and its associated bitmap */
Jbig2Image* jbig2_image_new(int width, int height)
{
Jbig2Image *image;
int stride;
image = malloc(sizeof(*image));
if (image == NULL) {
fprintf(stderr, "jbig2dec error: could not allocate image buffer!\n");
return NULL;
}
stride = (((width - 1) >> 5) + 1) << 2; /* generate a word-aligned stride */
image->data = malloc(stride*height);
if (image->data == NULL) {
fprintf(stderr, "jbig2dec error: could not allocate image data buffer!\n");
free(image);
return NULL;
}
image->width = width;
image->height = height;
image->stride = stride;
return image;
}
/* free a Jbig2Image structure and its associated memory */
void jbig2_image_free(Jbig2Image *image)
{
free (image->data);
free (image);
}