-/*
- * Write bits.
- *
- * v : Value of bits
- * n : Number of bits to write
- */
-void bio_write(int v, int n)
-{
+/*
+==========================================================
+ Bit Input/Output interface
+==========================================================
+*/
+
+opj_bio_t* bio_create() {
+ opj_bio_t *bio = (opj_bio_t*)opj_malloc(sizeof(opj_bio_t));
+ return bio;
+}
+
+void bio_destroy(opj_bio_t *bio) {
+ if(bio) {
+ opj_free(bio);
+ }
+}
+
+int bio_numbytes(opj_bio_t *bio) {
+ return (bio->bp - bio->start);
+}
+
+void bio_init_enc(opj_bio_t *bio, unsigned char *bp, int len) {
+ bio->start = bp;
+ bio->end = bp + len;
+ bio->bp = bp;
+ bio->buf = 0;
+ bio->ct = 8;
+}
+
+void bio_init_dec(opj_bio_t *bio, unsigned char *bp, int len) {
+ bio->start = bp;
+ bio->end = bp + len;
+ bio->bp = bp;
+ bio->buf = 0;
+ bio->ct = 0;
+}
+
+void bio_write(opj_bio_t *bio, int v, int n) {