| /* |
| * The copyright in this software is being made available under the 2-clauses |
| * BSD License, included below. This software may be subject to other third |
| * party and contributor rights, including patent rights, and no such rights |
| * are granted under this license. |
| * |
| * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium |
| * Copyright (c) 2002-2014, Professor Benoit Macq |
| * Copyright (c) 2001-2003, David Janssens |
| * Copyright (c) 2002-2003, Yannick Verschueren |
| * Copyright (c) 2003-2007, Francois-Olivier Devaux |
| * Copyright (c) 2003-2014, Antonin Descampe |
| * Copyright (c) 2005, Herve Drolon, FreeImage Team |
| * Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR |
| * Copyright (c) 2012, CS Systemes d'Information, France |
| * Copyright (c) 2017, IntoPIX SA <support@intopix.com> |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #ifndef OPJ_TCD_H |
| #define OPJ_TCD_H |
| /** |
| @file tcd.h |
| @brief Implementation of a tile coder/decoder (TCD) |
| |
| The functions in TCD.C encode or decode each tile independently from |
| each other. The functions in TCD.C are used by other functions in J2K.C. |
| */ |
| |
| /** @defgroup TCD TCD - Implementation of a tile coder/decoder */ |
| /*@{*/ |
| |
| |
| /** |
| FIXME DOC |
| */ |
| typedef struct opj_tcd_pass { |
| OPJ_UINT32 rate; |
| OPJ_FLOAT64 distortiondec; |
| OPJ_UINT32 len; |
| OPJ_BITFIELD term : 1; |
| } opj_tcd_pass_t; |
| |
| /** |
| FIXME DOC |
| */ |
| typedef struct opj_tcd_layer { |
| OPJ_UINT32 numpasses; /* Number of passes in the layer */ |
| OPJ_UINT32 len; /* len of information */ |
| OPJ_FLOAT64 disto; /* add for index (Cfr. Marcela) */ |
| OPJ_BYTE *data; /* data */ |
| } opj_tcd_layer_t; |
| |
| /** |
| FIXME DOC |
| */ |
| typedef struct opj_tcd_cblk_enc { |
| OPJ_BYTE* data; /* Data */ |
| opj_tcd_layer_t* layers; /* layer information */ |
| opj_tcd_pass_t* passes; /* information about the passes */ |
| OPJ_INT32 x0, y0, x1, |
| y1; /* dimension of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */ |
| OPJ_UINT32 numbps; |
| OPJ_UINT32 numlenbits; |
| OPJ_UINT32 data_size; /* Size of allocated data buffer */ |
| OPJ_UINT32 |
| numpasses; /* number of pass already done for the code-blocks */ |
| OPJ_UINT32 numpassesinlayers; /* number of passes in the layer */ |
| OPJ_UINT32 totalpasses; /* total number of passes */ |
| } opj_tcd_cblk_enc_t; |
| |
| |
| /** Chunk of codestream data that is part of a code block */ |
| typedef struct opj_tcd_seg_data_chunk { |
| /* Point to tilepart buffer. We don't make a copy ! |
| So the tilepart buffer must be kept alive |
| as long as we need to decode the codeblocks */ |
| OPJ_BYTE * data; |
| OPJ_UINT32 len; /* Usable length of data */ |
| } opj_tcd_seg_data_chunk_t; |
| |
| /** Segment of a code-block. |
| * A segment represent a number of consecutive coding passes, without termination |
| * of MQC or RAW between them. */ |
| typedef struct opj_tcd_seg { |
| OPJ_UINT32 len; /* Size of data related to this segment */ |
| /* Number of passes decoded. Including those that we skip */ |
| OPJ_UINT32 numpasses; |
| /* Number of passes actually to be decoded. To be used for code-block decoding */ |
| OPJ_UINT32 real_num_passes; |
| /* Maximum number of passes for this segment */ |
| OPJ_UINT32 maxpasses; |
| /* Number of new passes for current packed. Transitory value */ |
| OPJ_UINT32 numnewpasses; |
| /* Codestream length for this segment for current packed. Transitory value */ |
| OPJ_UINT32 newlen; |
| } opj_tcd_seg_t; |
| |
| /** Code-block for decoding */ |
| typedef struct opj_tcd_cblk_dec { |
| opj_tcd_seg_t* segs; /* segments information */ |
| opj_tcd_seg_data_chunk_t* chunks; /* Array of chunks */ |
| /* position of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */ |
| OPJ_INT32 x0, y0, x1, y1; |
| OPJ_UINT32 numbps; |
| /* number of bits for len, for the current packet. Transitory value */ |
| OPJ_UINT32 numlenbits; |
| /* number of pass added to the code-blocks, for the current packet. Transitory value */ |
| OPJ_UINT32 numnewpasses; |
| /* number of segments, including those of packet we skip */ |
| OPJ_UINT32 numsegs; |
| /* number of segments, to be used for code block decoding */ |
| OPJ_UINT32 real_num_segs; |
| OPJ_UINT32 m_current_max_segs; /* allocated number of segs[] items */ |
| OPJ_UINT32 numchunks; /* Number of valid chunks items */ |
| OPJ_UINT32 numchunksalloc; /* Number of chunks item allocated */ |
| /* Decoded code-block. Only used for subtile decoding. Otherwise tilec->data is directly updated */ |
| OPJ_INT32* decoded_data; |
| } opj_tcd_cblk_dec_t; |
| |
| /** Precinct structure */ |
| typedef struct opj_tcd_precinct { |
| /* dimension of the precinct : left upper corner (x0, y0) right low corner (x1,y1) */ |
| OPJ_INT32 x0, y0, x1, y1; |
| OPJ_UINT32 cw, ch; /* number of code-blocks, in width and height */ |
| union { /* code-blocks information */ |
| opj_tcd_cblk_enc_t* enc; |
| opj_tcd_cblk_dec_t* dec; |
| void* blocks; |
| } cblks; |
| OPJ_UINT32 block_size; /* size taken by cblks (in bytes) */ |
| opj_tgt_tree_t *incltree; /* inclusion tree */ |
| opj_tgt_tree_t *imsbtree; /* IMSB tree */ |
| } opj_tcd_precinct_t; |
| |
| /** Sub-band structure */ |
| typedef struct opj_tcd_band { |
| /* dimension of the subband : left upper corner (x0, y0) right low corner (x1,y1) */ |
| OPJ_INT32 x0, y0, x1, y1; |
| /* band number: for lowest resolution level (0=LL), otherwise (1=HL, 2=LH, 3=HH) */ |
| OPJ_UINT32 bandno; |
| /* precinct information */ |
| opj_tcd_precinct_t *precincts; |
| /* size of data taken by precincts */ |
| OPJ_UINT32 precincts_data_size; |
| OPJ_INT32 numbps; |
| OPJ_FLOAT32 stepsize; |
| } opj_tcd_band_t; |
| |
| /** Tile-component resolution structure */ |
| typedef struct opj_tcd_resolution { |
| /* dimension of the resolution level : left upper corner (x0, y0) right low corner (x1,y1) */ |
| OPJ_INT32 x0, y0, x1, y1; |
| /* number of precincts, in width and height, for this resolution level */ |
| OPJ_UINT32 pw, ph; |
| /* number of sub-bands for the resolution level (1 for lowest resolution level, 3 otherwise) */ |
| OPJ_UINT32 numbands; |
| /* subband information */ |
| opj_tcd_band_t bands[3]; |
| |
| /* dimension of the resolution limited to window of interest. Only valid if tcd->whole_tile_decoding is set */ |
| OPJ_UINT32 win_x0; |
| OPJ_UINT32 win_y0; |
| OPJ_UINT32 win_x1; |
| OPJ_UINT32 win_y1; |
| } opj_tcd_resolution_t; |
| |
| /** Tile-component structure */ |
| typedef struct opj_tcd_tilecomp { |
| /* dimension of component : left upper corner (x0, y0) right low corner (x1,y1) */ |
| OPJ_INT32 x0, y0, x1, y1; |
| /* component number */ |
| OPJ_UINT32 compno; |
| /* number of resolutions level */ |
| OPJ_UINT32 numresolutions; |
| /* number of resolutions level to decode (at max)*/ |
| OPJ_UINT32 minimum_num_resolutions; |
| /* resolutions information */ |
| opj_tcd_resolution_t *resolutions; |
| /* size of data for resolutions (in bytes) */ |
| OPJ_UINT32 resolutions_size; |
| |
| /* data of the component. For decoding, only valid if tcd->whole_tile_decoding is set (so exclusive of data_win member) */ |
| OPJ_INT32 *data; |
| /* if true, then need to free after usage, otherwise do not free */ |
| OPJ_BOOL ownsData; |
| /* we may either need to allocate this amount of data, or re-use image data and ignore this value */ |
| size_t data_size_needed; |
| /* size of the data of the component */ |
| size_t data_size; |
| |
| /** data of the component limited to window of interest. Only valid for decoding and if tcd->whole_tile_decoding is NOT set (so exclusive of data member) */ |
| OPJ_INT32 *data_win; |
| /* dimension of the component limited to window of interest. Only valid for decoding and if tcd->whole_tile_decoding is NOT set */ |
| OPJ_UINT32 win_x0; |
| OPJ_UINT32 win_y0; |
| OPJ_UINT32 win_x1; |
| OPJ_UINT32 win_y1; |
| |
| /* add fixed_quality */ |
| OPJ_INT32 numpix; |
| } opj_tcd_tilecomp_t; |
| |
| |
| /** |
| FIXME DOC |
| */ |
| typedef struct opj_tcd_tile { |
| /* dimension of the tile : left upper corner (x0, y0) right low corner (x1,y1) */ |
| OPJ_INT32 x0, y0, x1, y1; |
| OPJ_UINT32 numcomps; /* number of components in tile */ |
| opj_tcd_tilecomp_t *comps; /* Components information */ |
| OPJ_INT32 numpix; /* add fixed_quality */ |
| OPJ_FLOAT64 distotile; /* add fixed_quality */ |
| OPJ_FLOAT64 distolayer[100]; /* add fixed_quality */ |
| OPJ_UINT32 packno; /* packet number */ |
| } opj_tcd_tile_t; |
| |
| /** |
| FIXME DOC |
| */ |
| typedef struct opj_tcd_image { |
| opj_tcd_tile_t *tiles; /* Tiles information */ |
| } |
| opj_tcd_image_t; |
| |
| |
| /** |
| Tile coder/decoder |
| */ |
| typedef struct opj_tcd { |
| /** Position of the tilepart flag in Progression order*/ |
| OPJ_INT32 tp_pos; |
| /** Tile part number*/ |
| OPJ_UINT32 tp_num; |
| /** Current tile part number*/ |
| OPJ_UINT32 cur_tp_num; |
| /** Total number of tileparts of the current tile*/ |
| OPJ_UINT32 cur_totnum_tp; |
| /** Current Packet iterator number */ |
| OPJ_UINT32 cur_pino; |
| /** info on each image tile */ |
| opj_tcd_image_t *tcd_image; |
| /** image header */ |
| opj_image_t *image; |
| /** coding parameters */ |
| opj_cp_t *cp; |
| /** coding/decoding parameters common to all tiles */ |
| opj_tcp_t *tcp; |
| /** current encoded/decoded tile */ |
| OPJ_UINT32 tcd_tileno; |
| /** tell if the tcd is a decoder. */ |
| OPJ_BITFIELD m_is_decoder : 1; |
| /** Thread pool */ |
| opj_thread_pool_t* thread_pool; |
| /** Coordinates of the window of interest, in grid reference space */ |
| OPJ_UINT32 win_x0; |
| OPJ_UINT32 win_y0; |
| OPJ_UINT32 win_x1; |
| OPJ_UINT32 win_y1; |
| /** Only valid for decoding. Whether the whole tile is decoded, or just the region in win_x0/win_y0/win_x1/win_y1 */ |
| OPJ_BOOL whole_tile_decoding; |
| /* Array of size image->numcomps indicating if a component must be decoded. NULL if all components must be decoded */ |
| OPJ_BOOL* used_component; |
| } opj_tcd_t; |
| |
| /** @name Exported functions */ |
| /*@{*/ |
| /* ----------------------------------------------------------------------- */ |
| |
| /** |
| Dump the content of a tcd structure |
| */ |
| /*void tcd_dump(FILE *fd, opj_tcd_t *tcd, opj_tcd_image_t *img);*/ /* TODO MSD shoul use the new v2 structures */ |
| |
| /** |
| Create a new TCD handle |
| @param p_is_decoder FIXME DOC |
| @return Returns a new TCD handle if successful returns NULL otherwise |
| */ |
| opj_tcd_t* opj_tcd_create(OPJ_BOOL p_is_decoder); |
| |
| /** |
| Destroy a previously created TCD handle |
| @param tcd TCD handle to destroy |
| */ |
| void opj_tcd_destroy(opj_tcd_t *tcd); |
| |
| /** |
| * Initialize the tile coder and may reuse some memory. |
| * @param p_tcd TCD handle. |
| * @param p_image raw image. |
| * @param p_cp coding parameters. |
| * @param p_tp thread pool |
| * |
| * @return true if the encoding values could be set (false otherwise). |
| */ |
| OPJ_BOOL opj_tcd_init(opj_tcd_t *p_tcd, |
| opj_image_t * p_image, |
| opj_cp_t * p_cp, |
| opj_thread_pool_t* p_tp); |
| |
| /** |
| * Allocates memory for decoding a specific tile. |
| * |
| * @param p_tcd the tile decoder. |
| * @param p_tile_no the index of the tile received in sequence. This not necessarily lead to the |
| * tile at index p_tile_no. |
| * @param p_manager the event manager. |
| * |
| * @return true if the remaining data is sufficient. |
| */ |
| OPJ_BOOL opj_tcd_init_decode_tile(opj_tcd_t *p_tcd, OPJ_UINT32 p_tile_no, |
| opj_event_mgr_t* p_manager); |
| |
| void opj_tcd_makelayer_fixed(opj_tcd_t *tcd, OPJ_UINT32 layno, |
| OPJ_UINT32 final); |
| |
| void opj_tcd_rateallocate_fixed(opj_tcd_t *tcd); |
| |
| void opj_tcd_makelayer(opj_tcd_t *tcd, |
| OPJ_UINT32 layno, |
| OPJ_FLOAT64 thresh, |
| OPJ_UINT32 final); |
| |
| OPJ_BOOL opj_tcd_rateallocate(opj_tcd_t *tcd, |
| OPJ_BYTE *dest, |
| OPJ_UINT32 * p_data_written, |
| OPJ_UINT32 len, |
| opj_codestream_info_t *cstr_info, |
| opj_event_mgr_t *p_manager); |
| |
| /** |
| * Gets the maximum tile size that will be taken by the tile once decoded. |
| */ |
| OPJ_UINT32 opj_tcd_get_decoded_tile_size(opj_tcd_t *p_tcd, |
| OPJ_BOOL take_into_account_partial_decoding); |
| |
| /** |
| * Encodes a tile from the raw image into the given buffer. |
| * @param p_tcd Tile Coder handle |
| * @param p_tile_no Index of the tile to encode. |
| * @param p_dest Destination buffer |
| * @param p_data_written pointer to an int that is incremented by the number of bytes really written on p_dest |
| * @param p_len Maximum length of the destination buffer |
| * @param p_cstr_info Codestream information structure |
| * @param p_manager the user event manager |
| * @return true if the coding is successful. |
| */ |
| OPJ_BOOL opj_tcd_encode_tile(opj_tcd_t *p_tcd, |
| OPJ_UINT32 p_tile_no, |
| OPJ_BYTE *p_dest, |
| OPJ_UINT32 * p_data_written, |
| OPJ_UINT32 p_len, |
| struct opj_codestream_info *p_cstr_info, |
| opj_event_mgr_t *p_manager); |
| |
| |
| /** |
| Decode a tile from a buffer into a raw image |
| @param tcd TCD handle |
| @param win_x0 Upper left x of region to decode (in grid coordinates) |
| @param win_y0 Upper left y of region to decode (in grid coordinates) |
| @param win_x1 Lower right x of region to decode (in grid coordinates) |
| @param win_y1 Lower right y of region to decode (in grid coordinates) |
| @param numcomps_to_decode Size of the comps_indices array, or 0 if decoding all components. |
| @param comps_indices Array of numcomps values representing the indices |
| of the components to decode (relative to the |
| codestream, starting at 0). Or NULL if decoding all components. |
| @param src Source buffer |
| @param len Length of source buffer |
| @param tileno Number that identifies one of the tiles to be decoded |
| @param cstr_info FIXME DOC |
| @param manager the event manager. |
| */ |
| OPJ_BOOL opj_tcd_decode_tile(opj_tcd_t *tcd, |
| OPJ_UINT32 win_x0, |
| OPJ_UINT32 win_y0, |
| OPJ_UINT32 win_x1, |
| OPJ_UINT32 win_y1, |
| OPJ_UINT32 numcomps_to_decode, |
| const OPJ_UINT32 *comps_indices, |
| OPJ_BYTE *src, |
| OPJ_UINT32 len, |
| OPJ_UINT32 tileno, |
| opj_codestream_index_t *cstr_info, |
| opj_event_mgr_t *manager); |
| |
| |
| /** |
| * Copies tile data from the system onto the given memory block. |
| */ |
| OPJ_BOOL opj_tcd_update_tile_data(opj_tcd_t *p_tcd, |
| OPJ_BYTE * p_dest, |
| OPJ_UINT32 p_dest_length); |
| |
| /** |
| * |
| */ |
| OPJ_SIZE_T opj_tcd_get_encoded_tile_size(opj_tcd_t *p_tcd); |
| |
| /** |
| * Initialize the tile coder and may reuse some meory. |
| * |
| * @param p_tcd TCD handle. |
| * @param p_tile_no current tile index to encode. |
| * @param p_manager the event manager. |
| * |
| * @return true if the encoding values could be set (false otherwise). |
| */ |
| OPJ_BOOL opj_tcd_init_encode_tile(opj_tcd_t *p_tcd, |
| OPJ_UINT32 p_tile_no, opj_event_mgr_t* p_manager); |
| |
| /** |
| * Copies tile data from the given memory block onto the system. |
| */ |
| OPJ_BOOL opj_tcd_copy_tile_data(opj_tcd_t *p_tcd, |
| OPJ_BYTE * p_src, |
| OPJ_SIZE_T p_src_length); |
| |
| /** |
| * Allocates tile component data |
| * |
| * |
| */ |
| OPJ_BOOL opj_alloc_tile_component_data(opj_tcd_tilecomp_t *l_tilec); |
| |
| /** Returns whether a sub-band is empty (i.e. whether it has a null area) |
| * @param band Sub-band handle. |
| * @return OPJ_TRUE whether the sub-band is empty. |
| */ |
| OPJ_BOOL opj_tcd_is_band_empty(opj_tcd_band_t* band); |
| |
| /** Reinitialize a segment */ |
| void opj_tcd_reinit_segment(opj_tcd_seg_t* seg); |
| |
| |
| /** Returns whether a sub-band region contributes to the area of interest |
| * tcd->win_x0,tcd->win_y0,tcd->win_x1,tcd->win_y1. |
| * |
| * @param tcd TCD handle. |
| * @param compno Component number |
| * @param resno Resolution number |
| * @param bandno Band number (*not* band index, ie 0, 1, 2 or 3) |
| * @param x0 Upper left x in subband coordinates |
| * @param y0 Upper left y in subband coordinates |
| * @param x1 Lower right x in subband coordinates |
| * @param y1 Lower right y in subband coordinates |
| * @return OPJ_TRUE whether the sub-band region contributs to the area of |
| * interest. |
| */ |
| OPJ_BOOL opj_tcd_is_subband_area_of_interest(opj_tcd_t *tcd, |
| OPJ_UINT32 compno, |
| OPJ_UINT32 resno, |
| OPJ_UINT32 bandno, |
| OPJ_UINT32 x0, |
| OPJ_UINT32 y0, |
| OPJ_UINT32 x1, |
| OPJ_UINT32 y1); |
| |
| /* ----------------------------------------------------------------------- */ |
| /*@}*/ |
| |
| /*@}*/ |
| |
| #endif /* OPJ_TCD_H */ |
