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/*
* Copyright (c) 2022, yzrh <yzrh@noema.org>
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <jbig2.h>
int
strdec_jbig2(char **bitmap,
const char * restrict jbig2, int jbig2_size)
{
Jbig2Ctx *ctx = jbig2_ctx_new(NULL, JBIG2_OPTIONS_EMBEDDED, NULL, NULL, NULL);
jbig2_data_in(ctx, (unsigned char *) jbig2, jbig2_size);
jbig2_complete_page(ctx);
Jbig2Image *image = jbig2_page_out(ctx);
int width_padded = (image->width + 7) / 8;
unsigned char *data = image->data;
for (unsigned int i = 0; i < image->height; i++) {
memcpy(*bitmap + i * width_padded, data, width_padded);
data += image->stride;
}
jbig2_release_page(ctx, image);
return 0;
}
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