From c2e4639d2ebefbeb7f8b7e1826ae2391c6876a5a Mon Sep 17 00:00:00 2001 From: Leo Howell Date: Sat, 14 Nov 2009 20:24:57 +0900 Subject: Merge some files --- lpg/libqr/qr/bitstream.h | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 lpg/libqr/qr/bitstream.h (limited to 'lpg/libqr/qr/bitstream.h') diff --git a/lpg/libqr/qr/bitstream.h b/lpg/libqr/qr/bitstream.h new file mode 100644 index 0000000..cf20694 --- /dev/null +++ b/lpg/libqr/qr/bitstream.h @@ -0,0 +1,48 @@ +#ifndef QR_BITSTREAM_H +#define QR_BITSTREAM_H + +#include + +/** + * Note: when writing / reading multiple bits, the + * _most_ significant bits come first in the stream. + * (That is, the order you would naturally write the + * number in binary) + */ + +struct qr_bitstream; + +struct qr_bitstream * qr_bitstream_create(void); +int qr_bitstream_resize(struct qr_bitstream *, size_t bits); +void qr_bitstream_destroy(struct qr_bitstream *); +struct qr_bitstream * qr_bitstream_dup(const struct qr_bitstream *); + +void qr_bitstream_seek(struct qr_bitstream *, size_t pos); +size_t qr_bitstream_tell(const struct qr_bitstream *); +size_t qr_bitstream_remaining(const struct qr_bitstream *); +size_t qr_bitstream_size(const struct qr_bitstream *); + +unsigned int qr_bitstream_read(struct qr_bitstream *, size_t bits); + +void qr_bitstream_unpack(struct qr_bitstream *, + unsigned int * result, + size_t count, + size_t bitsize); + +int qr_bitstream_write(struct qr_bitstream *, + unsigned int value, + size_t bits); + +int qr_bitstream_pack(struct qr_bitstream *, + const unsigned int * values, + size_t count, + size_t bitsize); + +int qr_bitstream_cat(struct qr_bitstream *, const struct qr_bitstream * src); + +int qr_bitstream_copy(struct qr_bitstream * dest, + struct qr_bitstream * src, + size_t count); + +#endif + -- cgit v1.2.3-70-g09d2