X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=src%2Fgdcmopenjpeg%2Flibopenjpeg%2Ft2.h;h=d1d4d908087ff0d14290eb662bb95ed44fc41d6e;hb=7eb2c6a1c2b6d33ac2b9dd5e23304679c185f70b;hp=c8596e95633311bb1fb9cfe16cdd4bcd1c1ab7be;hpb=7452f3039ff4dd2574fcbf3343b530a2f20f9623;p=gdcm.git diff --git a/src/gdcmopenjpeg/libopenjpeg/t2.h b/src/gdcmopenjpeg/libopenjpeg/t2.h index c8596e95..d1d4d908 100644 --- a/src/gdcmopenjpeg/libopenjpeg/t2.h +++ b/src/gdcmopenjpeg/libopenjpeg/t2.h @@ -1,7 +1,9 @@ /* - * Copyright (c) 2001-2002, David Janssens + * Copyright (c) 2001-2003, David Janssens * Copyright (c) 2002-2003, Yannick Verschueren - * Copyright (c) 2002-2003, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium + * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe + * Copyright (c) 2005, Hervé Drolon, FreeImage Team + * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -25,40 +27,73 @@ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ - #ifndef __T2_H #define __T2_H +/** +@file t2.h +@brief Implementation of a tier-2 coding (packetization of code-block data) (T2) -#include "tcd.h" -#include "j2k.h" +*/ -/* - * Encode the packets of a tile to a destination buffer - * - * img : the source image - * cp : the image coding parameters - * tileno : number of the tile encoded - * tile : the tile for which to write the packets - * maxlayers : maximum number of layers - * dest : the destination buffer - * len : the length of the destination buffer - * info_IM : structure to create an index file - */ -int t2_encode_packets(j2k_image_t * img, j2k_cp_t * cp, int tileno, - tcd_tile_t * tile, int maxlayers, - unsigned char *dest, int len, info_image * info_IM); +/** @defgroup T2 T2 - Implementation of a tier-2 coding */ +/*@{*/ -/* - * Decode the packets of a tile from a source buffer - * - * src: the source buffer - * len: length of the source buffer - * img: destination image - * cp: image coding parameters - * tileno: number that identifies the tile for which to decode the packets - * tile: tile for which to decode the packets +/** +Tier-2 coding +*/ +typedef struct opj_t2 { + /** codec context */ + opj_common_ptr cinfo; + + /** Encoding: pointer to the src image. Decoding: pointer to the dst image. */ + opj_image_t *image; + /** pointer to the image coding parameters */ + opj_cp_t *cp; +} opj_t2_t; + +/** @name Exported functions */ +/*@{*/ +/* ----------------------------------------------------------------------- */ + +/** +Encode the packets of a tile to a destination buffer +@param t2 T2 handle +@param tileno number of the tile encoded +@param tile the tile for which to write the packets +@param maxlayers maximum number of layers +@param dest the destination buffer +@param len the length of the destination buffer +@param image_info structure to create an index file +*/ +int t2_encode_packets(opj_t2_t* t2, int tileno, opj_tcd_tile_t *tile, int maxlayers, unsigned char *dest, int len, opj_image_info_t *image_info); + +/** +Decode the packets of a tile from a source buffer +@param t2 T2 handle +@param src the source buffer +@param len length of the source buffer +@param tileno number that identifies the tile for which to decode the packets +@param tile tile for which to decode the packets */ -int t2_decode_packets(unsigned char *src, int len, j2k_image_t * img, - j2k_cp_t * cp, int tileno, tcd_tile_t * tile); +int t2_decode_packets(opj_t2_t *t2, unsigned char *src, int len, int tileno, opj_tcd_tile_t *tile); + +/** +Create a T2 handle +@param cinfo Codec context info +@param image Source or destination image +@param cp Image coding parameters +@return Returns a new T2 handle if successful, returns NULL otherwise +*/ +opj_t2_t* t2_create(opj_common_ptr cinfo, opj_image_t *image, opj_cp_t *cp); +/** +Destroy a T2 handle +@param t2 T2 handle to destroy +*/ +void t2_destroy(opj_t2_t *t2); + +/* ----------------------------------------------------------------------- */ +/*@}*/ + +/*@}*/ -#endif +#endif /* __T2_H */