diff --git a/OpenJPEG/bin/concrt140.dll b/OpenJPEG/bin/concrt140.dll new file mode 100644 index 0000000..915a13a Binary files /dev/null and b/OpenJPEG/bin/concrt140.dll differ diff --git a/OpenJPEG/bin/msvcp140.dll b/OpenJPEG/bin/msvcp140.dll new file mode 100644 index 0000000..4a5ca4f Binary files /dev/null and b/OpenJPEG/bin/msvcp140.dll differ diff --git a/OpenJPEG/bin/openjp2.dll b/OpenJPEG/bin/openjp2.dll new file mode 100644 index 0000000..e5ccf40 Binary files /dev/null and b/OpenJPEG/bin/openjp2.dll differ diff --git a/OpenJPEG/bin/opj_compress.exe b/OpenJPEG/bin/opj_compress.exe new file mode 100644 index 0000000..6003078 Binary files /dev/null and b/OpenJPEG/bin/opj_compress.exe differ diff --git a/OpenJPEG/bin/opj_decompress.exe b/OpenJPEG/bin/opj_decompress.exe new file mode 100644 index 0000000..cf5b444 Binary files /dev/null and b/OpenJPEG/bin/opj_decompress.exe differ diff --git a/OpenJPEG/bin/opj_dump.exe b/OpenJPEG/bin/opj_dump.exe new file mode 100644 index 0000000..ba0533c Binary files /dev/null and b/OpenJPEG/bin/opj_dump.exe differ diff --git a/OpenJPEG/bin/vcruntime140.dll b/OpenJPEG/bin/vcruntime140.dll new file mode 100644 index 0000000..52fe06b Binary files /dev/null and b/OpenJPEG/bin/vcruntime140.dll differ diff --git a/OpenJPEG/include/openjpeg-2.3/openjpeg.h b/OpenJPEG/include/openjpeg-2.3/openjpeg.h new file mode 100644 index 0000000..53a0e10 --- /dev/null +++ b/OpenJPEG/include/openjpeg-2.3/openjpeg.h @@ -0,0 +1,1691 @@ +/* +* 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) 2006-2007, Parvatha Elangovan +* Copyright (c) 2008, Jerome Fimes, Communications & Systemes +* Copyright (c) 2010-2011, Kaori Hagihara +* Copyright (c) 2011-2012, Centre National d'Etudes Spatiales (CNES), France +* Copyright (c) 2012, CS Systemes d'Information, France +* 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 OPENJPEG_H +#define OPENJPEG_H + + +/* +========================================================== + Compiler directives +========================================================== +*/ + +/* +The inline keyword is supported by C99 but not by C90. +Most compilers implement their own version of this keyword ... +*/ +#ifndef INLINE +#if defined(_MSC_VER) +#define INLINE __forceinline +#elif defined(__GNUC__) +#define INLINE __inline__ +#elif defined(__MWERKS__) +#define INLINE inline +#else +/* add other compilers here ... */ +#define INLINE +#endif /* defined() */ +#endif /* INLINE */ + +/* deprecated attribute */ +#ifdef __GNUC__ +#define OPJ_DEPRECATED(func) func __attribute__ ((deprecated)) +#elif defined(_MSC_VER) +#define OPJ_DEPRECATED(func) __declspec(deprecated) func +#else +#pragma message("WARNING: You need to implement DEPRECATED for this compiler") +#define OPJ_DEPRECATED(func) func +#endif + +#if defined(OPJ_STATIC) || !defined(_WIN32) +/* http://gcc.gnu.org/wiki/Visibility */ +# if __GNUC__ >= 4 +# if defined(OPJ_STATIC) /* static library uses "hidden" */ +# define OPJ_API __attribute__ ((visibility ("hidden"))) +# else +# define OPJ_API __attribute__ ((visibility ("default"))) +# endif +# define OPJ_LOCAL __attribute__ ((visibility ("hidden"))) +# else +# define OPJ_API +# define OPJ_LOCAL +# endif +# define OPJ_CALLCONV +#else +# define OPJ_CALLCONV __stdcall +/* +The following ifdef block is the standard way of creating macros which make exporting +from a DLL simpler. All files within this DLL are compiled with the OPJ_EXPORTS +symbol defined on the command line. this symbol should not be defined on any project +that uses this DLL. This way any other project whose source files include this file see +OPJ_API functions as being imported from a DLL, whereas this DLL sees symbols +defined with this macro as being exported. +*/ +# if defined(OPJ_EXPORTS) || defined(DLL_EXPORT) +# define OPJ_API __declspec(dllexport) +# else +# define OPJ_API __declspec(dllimport) +# endif /* OPJ_EXPORTS */ +#endif /* !OPJ_STATIC || !_WIN32 */ + +typedef int OPJ_BOOL; +#define OPJ_TRUE 1 +#define OPJ_FALSE 0 + +typedef char OPJ_CHAR; +typedef float OPJ_FLOAT32; +typedef double OPJ_FLOAT64; +typedef unsigned char OPJ_BYTE; + +#include "opj_stdint.h" + +typedef int8_t OPJ_INT8; +typedef uint8_t OPJ_UINT8; +typedef int16_t OPJ_INT16; +typedef uint16_t OPJ_UINT16; +typedef int32_t OPJ_INT32; +typedef uint32_t OPJ_UINT32; +typedef int64_t OPJ_INT64; +typedef uint64_t OPJ_UINT64; + +typedef int64_t OPJ_OFF_T; /* 64-bit file offset type */ + +#include +typedef size_t OPJ_SIZE_T; + +/* Avoid compile-time warning because parameter is not used */ +#define OPJ_ARG_NOT_USED(x) (void)(x) + +/* +========================================================== + Useful constant definitions +========================================================== +*/ + +#define OPJ_PATH_LEN 4096 /**< Maximum allowed size for filenames */ + +#define OPJ_J2K_MAXRLVLS 33 /**< Number of maximum resolution level authorized */ +#define OPJ_J2K_MAXBANDS (3*OPJ_J2K_MAXRLVLS-2) /**< Number of maximum sub-band linked to number of resolution level */ + +#define OPJ_J2K_DEFAULT_NB_SEGS 10 +#define OPJ_J2K_STREAM_CHUNK_SIZE 0x100000 /** 1 mega by default */ +#define OPJ_J2K_DEFAULT_HEADER_SIZE 1000 +#define OPJ_J2K_MCC_DEFAULT_NB_RECORDS 10 +#define OPJ_J2K_MCT_DEFAULT_NB_RECORDS 10 + +/* UniPG>> */ /* NOT YET USED IN THE V2 VERSION OF OPENJPEG */ +#define JPWL_MAX_NO_TILESPECS 16 /**< Maximum number of tile parts expected by JPWL: increase at your will */ +#define JPWL_MAX_NO_PACKSPECS 16 /**< Maximum number of packet parts expected by JPWL: increase at your will */ +#define JPWL_MAX_NO_MARKERS 512 /**< Maximum number of JPWL markers: increase at your will */ +#define JPWL_PRIVATEINDEX_NAME "jpwl_index_privatefilename" /**< index file name used when JPWL is on */ +#define JPWL_EXPECTED_COMPONENTS 3 /**< Expect this number of components, so you'll find better the first EPB */ +#define JPWL_MAXIMUM_TILES 8192 /**< Expect this maximum number of tiles, to avoid some crashes */ +#define JPWL_MAXIMUM_HAMMING 2 /**< Expect this maximum number of bit errors in marker id's */ +#define JPWL_MAXIMUM_EPB_ROOM 65450 /**< Expect this maximum number of bytes for composition of EPBs */ +/* <= OPJ_PROFILE_CINEMA_2K)&&((v) <= OPJ_PROFILE_CINEMA_S4K)) +#define OPJ_IS_STORAGE(v) ((v) == OPJ_PROFILE_CINEMA_LTS) +#define OPJ_IS_BROADCAST(v) (((v) >= OPJ_PROFILE_BC_SINGLE)&&((v) <= ((OPJ_PROFILE_BC_MULTI_R) | (0x000b)))) +#define OPJ_IS_IMF(v) (((v) >= OPJ_PROFILE_IMF_2K)&&((v) <= ((OPJ_PROFILE_IMF_8K_R) | (0x009b)))) +#define OPJ_IS_PART2(v) ((v) & OPJ_PROFILE_PART2) + +/** + * JPEG 2000 codestream and component size limits in cinema profiles + * */ +#define OPJ_CINEMA_24_CS 1302083 /** Maximum codestream length for 24fps */ +#define OPJ_CINEMA_48_CS 651041 /** Maximum codestream length for 48fps */ +#define OPJ_CINEMA_24_COMP 1041666 /** Maximum size per color component for 2K & 4K @ 24fps */ +#define OPJ_CINEMA_48_COMP 520833 /** Maximum size per color component for 2K @ 48fps */ + +/* +========================================================== + enum definitions +========================================================== +*/ + +/** + * DEPRECATED: use RSIZ, OPJ_PROFILE_* and OPJ_EXTENSION_* instead + * Rsiz Capabilities + * */ +typedef enum RSIZ_CAPABILITIES { + OPJ_STD_RSIZ = 0, /** Standard JPEG2000 profile*/ + OPJ_CINEMA2K = 3, /** Profile name for a 2K image*/ + OPJ_CINEMA4K = 4, /** Profile name for a 4K image*/ + OPJ_MCT = 0x8100 +} OPJ_RSIZ_CAPABILITIES; + +/** + * DEPRECATED: use RSIZ, OPJ_PROFILE_* and OPJ_EXTENSION_* instead + * Digital cinema operation mode + * */ +typedef enum CINEMA_MODE { + OPJ_OFF = 0, /** Not Digital Cinema*/ + OPJ_CINEMA2K_24 = 1, /** 2K Digital Cinema at 24 fps*/ + OPJ_CINEMA2K_48 = 2, /** 2K Digital Cinema at 48 fps*/ + OPJ_CINEMA4K_24 = 3 /** 4K Digital Cinema at 24 fps*/ +} OPJ_CINEMA_MODE; + +/** + * Progression order + * */ +typedef enum PROG_ORDER { + OPJ_PROG_UNKNOWN = -1, /**< place-holder */ + OPJ_LRCP = 0, /**< layer-resolution-component-precinct order */ + OPJ_RLCP = 1, /**< resolution-layer-component-precinct order */ + OPJ_RPCL = 2, /**< resolution-precinct-component-layer order */ + OPJ_PCRL = 3, /**< precinct-component-resolution-layer order */ + OPJ_CPRL = 4 /**< component-precinct-resolution-layer order */ +} OPJ_PROG_ORDER; + +/** + * Supported image color spaces +*/ +typedef enum COLOR_SPACE { + OPJ_CLRSPC_UNKNOWN = -1, /**< not supported by the library */ + OPJ_CLRSPC_UNSPECIFIED = 0, /**< not specified in the codestream */ + OPJ_CLRSPC_SRGB = 1, /**< sRGB */ + OPJ_CLRSPC_GRAY = 2, /**< grayscale */ + OPJ_CLRSPC_SYCC = 3, /**< YUV */ + OPJ_CLRSPC_EYCC = 4, /**< e-YCC */ + OPJ_CLRSPC_CMYK = 5 /**< CMYK */ +} OPJ_COLOR_SPACE; + +/** + * Supported codec +*/ +typedef enum CODEC_FORMAT { + OPJ_CODEC_UNKNOWN = -1, /**< place-holder */ + OPJ_CODEC_J2K = 0, /**< JPEG-2000 codestream : read/write */ + OPJ_CODEC_JPT = 1, /**< JPT-stream (JPEG 2000, JPIP) : read only */ + OPJ_CODEC_JP2 = 2, /**< JP2 file format : read/write */ + OPJ_CODEC_JPP = 3, /**< JPP-stream (JPEG 2000, JPIP) : to be coded */ + OPJ_CODEC_JPX = 4 /**< JPX file format (JPEG 2000 Part-2) : to be coded */ +} OPJ_CODEC_FORMAT; + + +/* +========================================================== + event manager typedef definitions +========================================================== +*/ + +/** + * Callback function prototype for events + * @param msg Event message + * @param client_data Client object where will be return the event message + * */ +typedef void (*opj_msg_callback)(const char *msg, void *client_data); + +/* +========================================================== + codec typedef definitions +========================================================== +*/ + +/** + * Progression order changes + * + */ +typedef struct opj_poc { + /** Resolution num start, Component num start, given by POC */ + OPJ_UINT32 resno0, compno0; + /** Layer num end,Resolution num end, Component num end, given by POC */ + OPJ_UINT32 layno1, resno1, compno1; + /** Layer num start,Precinct num start, Precinct num end */ + OPJ_UINT32 layno0, precno0, precno1; + /** Progression order enum*/ + OPJ_PROG_ORDER prg1, prg; + /** Progression order string*/ + OPJ_CHAR progorder[5]; + /** Tile number */ + OPJ_UINT32 tile; + /** Start and end values for Tile width and height*/ + OPJ_INT32 tx0, tx1, ty0, ty1; + /** Start value, initialised in pi_initialise_encode*/ + OPJ_UINT32 layS, resS, compS, prcS; + /** End value, initialised in pi_initialise_encode */ + OPJ_UINT32 layE, resE, compE, prcE; + /** Start and end values of Tile width and height, initialised in pi_initialise_encode*/ + OPJ_UINT32 txS, txE, tyS, tyE, dx, dy; + /** Temporary values for Tile parts, initialised in pi_create_encode */ + OPJ_UINT32 lay_t, res_t, comp_t, prc_t, tx0_t, ty0_t; +} opj_poc_t; + +/** + * Compression parameters + * */ +typedef struct opj_cparameters { + /** size of tile: tile_size_on = false (not in argument) or = true (in argument) */ + OPJ_BOOL tile_size_on; + /** XTOsiz */ + int cp_tx0; + /** YTOsiz */ + int cp_ty0; + /** XTsiz */ + int cp_tdx; + /** YTsiz */ + int cp_tdy; + /** allocation by rate/distortion */ + int cp_disto_alloc; + /** allocation by fixed layer */ + int cp_fixed_alloc; + /** add fixed_quality */ + int cp_fixed_quality; + /** fixed layer */ + int *cp_matrice; + /** comment for coding */ + char *cp_comment; + /** csty : coding style */ + int csty; + /** progression order (default OPJ_LRCP) */ + OPJ_PROG_ORDER prog_order; + /** progression order changes */ + opj_poc_t POC[32]; + /** number of progression order changes (POC), default to 0 */ + OPJ_UINT32 numpocs; + /** number of layers */ + int tcp_numlayers; + /** rates of layers - might be subsequently limited by the max_cs_size field. + * Should be decreasing. 1 can be + * used as last value to indicate the last layer is lossless. */ + float tcp_rates[100]; + /** different psnr for successive layers. Should be increasing. 0 can be + * used as last value to indicate the last layer is lossless. */ + float tcp_distoratio[100]; + /** number of resolutions */ + int numresolution; + /** initial code block width, default to 64 */ + int cblockw_init; + /** initial code block height, default to 64 */ + int cblockh_init; + /** mode switch (cblk_style) */ + int mode; + /** 1 : use the irreversible DWT 9-7, 0 : use lossless compression (default) */ + int irreversible; + /** region of interest: affected component in [0..3], -1 means no ROI */ + int roi_compno; + /** region of interest: upshift value */ + int roi_shift; + /* number of precinct size specifications */ + int res_spec; + /** initial precinct width */ + int prcw_init[OPJ_J2K_MAXRLVLS]; + /** initial precinct height */ + int prch_init[OPJ_J2K_MAXRLVLS]; + + /**@name command line encoder parameters (not used inside the library) */ + /*@{*/ + /** input file name */ + char infile[OPJ_PATH_LEN]; + /** output file name */ + char outfile[OPJ_PATH_LEN]; + /** DEPRECATED. Index generation is now handeld with the opj_encode_with_info() function. Set to NULL */ + int index_on; + /** DEPRECATED. Index generation is now handeld with the opj_encode_with_info() function. Set to NULL */ + char index[OPJ_PATH_LEN]; + /** subimage encoding: origin image offset in x direction */ + int image_offset_x0; + /** subimage encoding: origin image offset in y direction */ + int image_offset_y0; + /** subsampling value for dx */ + int subsampling_dx; + /** subsampling value for dy */ + int subsampling_dy; + /** input file format 0: PGX, 1: PxM, 2: BMP 3:TIF*/ + int decod_format; + /** output file format 0: J2K, 1: JP2, 2: JPT */ + int cod_format; + /*@}*/ + + /* UniPG>> */ /* NOT YET USED IN THE V2 VERSION OF OPENJPEG */ + /**@name JPWL encoding parameters */ + /*@{*/ + /** enables writing of EPC in MH, thus activating JPWL */ + OPJ_BOOL jpwl_epc_on; + /** error protection method for MH (0,1,16,32,37-128) */ + int jpwl_hprot_MH; + /** tile number of header protection specification (>=0) */ + int jpwl_hprot_TPH_tileno[JPWL_MAX_NO_TILESPECS]; + /** error protection methods for TPHs (0,1,16,32,37-128) */ + int jpwl_hprot_TPH[JPWL_MAX_NO_TILESPECS]; + /** tile number of packet protection specification (>=0) */ + int jpwl_pprot_tileno[JPWL_MAX_NO_PACKSPECS]; + /** packet number of packet protection specification (>=0) */ + int jpwl_pprot_packno[JPWL_MAX_NO_PACKSPECS]; + /** error protection methods for packets (0,1,16,32,37-128) */ + int jpwl_pprot[JPWL_MAX_NO_PACKSPECS]; + /** enables writing of ESD, (0=no/1/2 bytes) */ + int jpwl_sens_size; + /** sensitivity addressing size (0=auto/2/4 bytes) */ + int jpwl_sens_addr; + /** sensitivity range (0-3) */ + int jpwl_sens_range; + /** sensitivity method for MH (-1=no,0-7) */ + int jpwl_sens_MH; + /** tile number of sensitivity specification (>=0) */ + int jpwl_sens_TPH_tileno[JPWL_MAX_NO_TILESPECS]; + /** sensitivity methods for TPHs (-1=no,0-7) */ + int jpwl_sens_TPH[JPWL_MAX_NO_TILESPECS]; + /*@}*/ + /* <> */ /* NOT YET USED IN THE V2 VERSION OF OPENJPEG */ + /**@name JPWL decoding parameters */ + /*@{*/ + /** activates the JPWL correction capabilities */ + OPJ_BOOL jpwl_correct; + /** expected number of components */ + int jpwl_exp_comps; + /** maximum number of tiles */ + int jpwl_max_tiles; + /*@}*/ + /* <> */ +/** + * Marker structure + * */ +typedef struct opj_marker_info { + /** marker type */ + unsigned short int type; + /** position in codestream */ + OPJ_OFF_T pos; + /** length, marker val included */ + int len; +} opj_marker_info_t; +/* <> */ + /** number of markers */ + int marknum; + /** list of markers */ + opj_marker_info_t *marker; + /** actual size of markers array */ + int maxmarknum; + /* <> */ /* NOT USED FOR THE MOMENT IN THE V2 VERSION */ + /** number of markers */ + OPJ_UINT32 marknum; + /** list of markers */ + opj_marker_info_t *marker; + /** actual size of markers array */ + OPJ_UINT32 maxmarknum; + /* <> */ /* NOT USED FOR THE MOMENT IN THE V2 VERSION */ + /** number of markers */ + OPJ_UINT32 marknum; + /** list of markers */ + opj_marker_info_t *marker; + /** actual size of markers array */ + OPJ_UINT32 maxmarknum; + /* < */ + +/* +========================================================== + Metadata from the JP2file +========================================================== +*/ + +/** + * Info structure of the JP2 file + * EXPERIMENTAL FOR THE MOMENT + */ +typedef struct opj_jp2_metadata { + /** */ + OPJ_INT32 not_used; + +} opj_jp2_metadata_t; + +/** + * Index structure of the JP2 file + * EXPERIMENTAL FOR THE MOMENT + */ +typedef struct opj_jp2_index { + /** */ + OPJ_INT32 not_used; + +} opj_jp2_index_t; + + +#ifdef __cplusplus +extern "C" { +#endif + + +/* +========================================================== + openjpeg version +========================================================== +*/ + +/* Get the version of the openjpeg library*/ +OPJ_API const char * OPJ_CALLCONV opj_version(void); + +/* +========================================================== + image functions definitions +========================================================== +*/ + +/** + * Create an image + * + * @param numcmpts number of components + * @param cmptparms components parameters + * @param clrspc image color space + * @return returns a new image structure if successful, returns NULL otherwise + * */ +OPJ_API opj_image_t* OPJ_CALLCONV opj_image_create(OPJ_UINT32 numcmpts, + opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc); + +/** + * Deallocate any resources associated with an image + * + * @param image image to be destroyed + */ +OPJ_API void OPJ_CALLCONV opj_image_destroy(opj_image_t *image); + +/** + * Creates an image without allocating memory for the image (used in the new version of the library). + * + * @param numcmpts the number of components + * @param cmptparms the components parameters + * @param clrspc the image color space + * + * @return a new image structure if successful, NULL otherwise. +*/ +OPJ_API opj_image_t* OPJ_CALLCONV opj_image_tile_create(OPJ_UINT32 numcmpts, + opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc); + +/** + * Allocator for opj_image_t->comps[].data + * To be paired with opj_image_data_free. + * + * @param size number of bytes to allocate + * + * @return a new pointer if successful, NULL otherwise. + * @since 2.2.0 +*/ +OPJ_API void* OPJ_CALLCONV opj_image_data_alloc(OPJ_SIZE_T size); + +/** + * Destructor for opj_image_t->comps[].data + * To be paired with opj_image_data_alloc. + * + * @param ptr Pointer to free + * + * @since 2.2.0 +*/ +OPJ_API void OPJ_CALLCONV opj_image_data_free(void* ptr); + +/* +========================================================== + stream functions definitions +========================================================== +*/ + +/** + * Creates an abstract stream. This function does nothing except allocating memory and initializing the abstract stream. + * + * @param p_is_input if set to true then the stream will be an input stream, an output stream else. + * + * @return a stream object. +*/ +OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_default_create( + OPJ_BOOL p_is_input); + +/** + * Creates an abstract stream. This function does nothing except allocating memory and initializing the abstract stream. + * + * @param p_buffer_size FIXME DOC + * @param p_is_input if set to true then the stream will be an input stream, an output stream else. + * + * @return a stream object. +*/ +OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_create(OPJ_SIZE_T p_buffer_size, + OPJ_BOOL p_is_input); + +/** + * Destroys a stream created by opj_create_stream. This function does NOT close the abstract stream. If needed the user must + * close its own implementation of the stream. + * + * @param p_stream the stream to destroy. + */ +OPJ_API void OPJ_CALLCONV opj_stream_destroy(opj_stream_t* p_stream); + +/** + * Sets the given function to be used as a read function. + * @param p_stream the stream to modify + * @param p_function the function to use a read function. +*/ +OPJ_API void OPJ_CALLCONV opj_stream_set_read_function(opj_stream_t* p_stream, + opj_stream_read_fn p_function); + +/** + * Sets the given function to be used as a write function. + * @param p_stream the stream to modify + * @param p_function the function to use a write function. +*/ +OPJ_API void OPJ_CALLCONV opj_stream_set_write_function(opj_stream_t* p_stream, + opj_stream_write_fn p_function); + +/** + * Sets the given function to be used as a skip function. + * @param p_stream the stream to modify + * @param p_function the function to use a skip function. +*/ +OPJ_API void OPJ_CALLCONV opj_stream_set_skip_function(opj_stream_t* p_stream, + opj_stream_skip_fn p_function); + +/** + * Sets the given function to be used as a seek function, the stream is then seekable, + * using SEEK_SET behavior. + * @param p_stream the stream to modify + * @param p_function the function to use a skip function. +*/ +OPJ_API void OPJ_CALLCONV opj_stream_set_seek_function(opj_stream_t* p_stream, + opj_stream_seek_fn p_function); + +/** + * Sets the given data to be used as a user data for the stream. + * @param p_stream the stream to modify + * @param p_data the data to set. + * @param p_function the function to free p_data when opj_stream_destroy() is called. +*/ +OPJ_API void OPJ_CALLCONV opj_stream_set_user_data(opj_stream_t* p_stream, + void * p_data, opj_stream_free_user_data_fn p_function); + +/** + * Sets the length of the user data for the stream. + * + * @param p_stream the stream to modify + * @param data_length length of the user_data. +*/ +OPJ_API void OPJ_CALLCONV opj_stream_set_user_data_length( + opj_stream_t* p_stream, OPJ_UINT64 data_length); + +/** + * Create a stream from a file identified with its filename with default parameters (helper function) + * @param fname the filename of the file to stream + * @param p_is_read_stream whether the stream is a read stream (true) or not (false) +*/ +OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_create_default_file_stream( + const char *fname, OPJ_BOOL p_is_read_stream); + +/** Create a stream from a file identified with its filename with a specific buffer size + * @param fname the filename of the file to stream + * @param p_buffer_size size of the chunk used to stream + * @param p_is_read_stream whether the stream is a read stream (true) or not (false) +*/ +OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_create_file_stream( + const char *fname, + OPJ_SIZE_T p_buffer_size, + OPJ_BOOL p_is_read_stream); + +/* +========================================================== + event manager functions definitions +========================================================== +*/ +/** + * Set the info handler use by openjpeg. + * @param p_codec the codec previously initialise + * @param p_callback the callback function which will be used + * @param p_user_data client object where will be returned the message +*/ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_set_info_handler(opj_codec_t * p_codec, + opj_msg_callback p_callback, + void * p_user_data); +/** + * Set the warning handler use by openjpeg. + * @param p_codec the codec previously initialise + * @param p_callback the callback function which will be used + * @param p_user_data client object where will be returned the message +*/ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_set_warning_handler(opj_codec_t * p_codec, + opj_msg_callback p_callback, + void * p_user_data); +/** + * Set the error handler use by openjpeg. + * @param p_codec the codec previously initialise + * @param p_callback the callback function which will be used + * @param p_user_data client object where will be returned the message +*/ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_set_error_handler(opj_codec_t * p_codec, + opj_msg_callback p_callback, + void * p_user_data); + +/* +========================================================== + codec functions definitions +========================================================== +*/ + +/** + * Creates a J2K/JP2 decompression structure + * @param format Decoder to select + * + * @return Returns a handle to a decompressor if successful, returns NULL otherwise + * */ +OPJ_API opj_codec_t* OPJ_CALLCONV opj_create_decompress( + OPJ_CODEC_FORMAT format); + +/** + * Destroy a decompressor handle + * + * @param p_codec decompressor handle to destroy + */ +OPJ_API void OPJ_CALLCONV opj_destroy_codec(opj_codec_t * p_codec); + +/** + * Read after the codestream if necessary + * @param p_codec the JPEG2000 codec to read. + * @param p_stream the JPEG2000 stream. + */ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_end_decompress(opj_codec_t *p_codec, + opj_stream_t *p_stream); + + +/** + * Set decoding parameters to default values + * @param parameters Decompression parameters + */ +OPJ_API void OPJ_CALLCONV opj_set_default_decoder_parameters( + opj_dparameters_t *parameters); + +/** + * Setup the decoder with decompression parameters provided by the user and with the message handler + * provided by the user. + * + * @param p_codec decompressor handler + * @param parameters decompression parameters + * + * @return true if the decoder is correctly set + */ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_setup_decoder(opj_codec_t *p_codec, + opj_dparameters_t *parameters); + +/** + * Allocates worker threads for the compressor/decompressor. + * + * By default, only the main thread is used. If this function is not used, + * but the OPJ_NUM_THREADS environment variable is set, its value will be + * used to initialize the number of threads. The value can be either an integer + * number, or "ALL_CPUS". If OPJ_NUM_THREADS is set and this function is called, + * this function will override the behaviour of the environment variable. + * + * Currently this function must be called after opj_setup_decoder() and + * before opj_read_header(). + * + * Note: currently only has effect on the decompressor. + * + * @param p_codec decompressor handler + * @param num_threads number of threads. + * + * @return OPJ_TRUE if the decoder is correctly set + */ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_codec_set_threads(opj_codec_t *p_codec, + int num_threads); + +/** + * Decodes an image header. + * + * @param p_stream the jpeg2000 stream. + * @param p_codec the jpeg2000 codec to read. + * @param p_image the image structure initialized with the characteristics of encoded image. + * + * @return true if the main header of the codestream and the JP2 header is correctly read. + */ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_read_header(opj_stream_t *p_stream, + opj_codec_t *p_codec, + opj_image_t **p_image); + + +/** Restrict the number of components to decode. + * + * This function should be called after opj_read_header(). + * + * This function enables to restrict the set of decoded components to the + * specified indices. + * Note that the current implementation (apply_color_transforms == OPJ_FALSE) + * is such that neither the multi-component transform at codestream level, + * nor JP2 channel transformations will be applied. + * Consequently the indices are relative to the codestream. + * + * Note: opj_decode_tile_data() should not be used together with opj_set_decoded_components(). + * + * @param p_codec the jpeg2000 codec to read. + * @param numcomps Size of the comps_indices array. + * @param comps_indices Array of numcomps values representing the indices + * of the components to decode (relative to the + * codestream, starting at 0) + * @param apply_color_transforms Whether multi-component transform at codestream level + * or JP2 channel transformations should be applied. + * Currently this parameter should be set to OPJ_FALSE. + * Setting it to OPJ_TRUE will result in an error. + * + * @return OPJ_TRUE in case of success. + */ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_set_decoded_components(opj_codec_t *p_codec, + OPJ_UINT32 numcomps, + const OPJ_UINT32* comps_indices, + OPJ_BOOL apply_color_transforms); + +/** + * Sets the given area to be decoded. This function should be called right after opj_read_header and before any tile header reading. + * + * The coordinates passed to this function should be expressed in the reference grid, + * that is to say at the highest resolution level, even if requesting the image at lower + * resolution levels. + * + * Generally opj_set_decode_area() should be followed by opj_decode(), and the + * codec cannot be re-used. + * In the particular case of an image made of a single tile, several sequences of + * calls to opoj_set_decode_area() and opj_decode() are allowed, and will bring + * performance improvements when reading an image by chunks. + * + * @param p_codec the jpeg2000 codec. + * @param p_image the decoded image previously set by opj_read_header + * @param p_start_x the left position of the rectangle to decode (in image coordinates). + * @param p_end_x the right position of the rectangle to decode (in image coordinates). + * @param p_start_y the up position of the rectangle to decode (in image coordinates). + * @param p_end_y the bottom position of the rectangle to decode (in image coordinates). + * + * @return true if the area could be set. + */ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_set_decode_area(opj_codec_t *p_codec, + opj_image_t* p_image, + OPJ_INT32 p_start_x, OPJ_INT32 p_start_y, + OPJ_INT32 p_end_x, OPJ_INT32 p_end_y); + +/** + * Decode an image from a JPEG-2000 codestream + * + * @param p_decompressor decompressor handle + * @param p_stream Input buffer stream + * @param p_image the decoded image + * @return true if success, otherwise false + * */ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_decode(opj_codec_t *p_decompressor, + opj_stream_t *p_stream, + opj_image_t *p_image); + +/** + * Get the decoded tile from the codec + * + * @param p_codec the jpeg2000 codec. + * @param p_stream input streamm + * @param p_image output image + * @param tile_index index of the tile which will be decode + * + * @return true if success, otherwise false + */ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_get_decoded_tile(opj_codec_t *p_codec, + opj_stream_t *p_stream, + opj_image_t *p_image, + OPJ_UINT32 tile_index); + +/** + * Set the resolution factor of the decoded image + * @param p_codec the jpeg2000 codec. + * @param res_factor resolution factor to set + * + * @return true if success, otherwise false + */ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_set_decoded_resolution_factor( + opj_codec_t *p_codec, OPJ_UINT32 res_factor); + +/** + * Writes a tile with the given data. + * + * @param p_codec the jpeg2000 codec. + * @param p_tile_index the index of the tile to write. At the moment, the tiles must be written from 0 to n-1 in sequence. + * @param p_data pointer to the data to write. Data is arranged in sequence, data_comp0, then data_comp1, then ... NO INTERLEAVING should be set. + * @param p_data_size this value os used to make sure the data being written is correct. The size must be equal to the sum for each component of + * tile_width * tile_height * component_size. component_size can be 1,2 or 4 bytes, depending on the precision of the given component. + * @param p_stream the stream to write data to. + * + * @return true if the data could be written. + */ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_write_tile(opj_codec_t *p_codec, + OPJ_UINT32 p_tile_index, + OPJ_BYTE * p_data, + OPJ_UINT32 p_data_size, + opj_stream_t *p_stream); + +/** + * Reads a tile header. This function is compulsory and allows one to know the size of the tile that will be decoded. + * The user may need to refer to the image got by opj_read_header to understand the size being taken by the tile. + * + * @param p_codec the jpeg2000 codec. + * @param p_tile_index pointer to a value that will hold the index of the tile being decoded, in case of success. + * @param p_data_size pointer to a value that will hold the maximum size of the decoded data, in case of success. In case + * of truncated codestreams, the actual number of bytes decoded may be lower. The computation of the size is the same + * as depicted in opj_write_tile. + * @param p_tile_x0 pointer to a value that will hold the x0 pos of the tile (in the image). + * @param p_tile_y0 pointer to a value that will hold the y0 pos of the tile (in the image). + * @param p_tile_x1 pointer to a value that will hold the x1 pos of the tile (in the image). + * @param p_tile_y1 pointer to a value that will hold the y1 pos of the tile (in the image). + * @param p_nb_comps pointer to a value that will hold the number of components in the tile. + * @param p_should_go_on pointer to a boolean that will hold the fact that the decoding should go on. In case the + * codestream is over at the time of the call, the value will be set to false. The user should then stop + * the decoding. + * @param p_stream the stream to decode. + * @return true if the tile header could be decoded. In case the decoding should end, the returned value is still true. + * returning false may be the result of a shortage of memory or an internal error. + */ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_read_tile_header(opj_codec_t *p_codec, + opj_stream_t * p_stream, + OPJ_UINT32 * p_tile_index, + OPJ_UINT32 * p_data_size, + OPJ_INT32 * p_tile_x0, OPJ_INT32 * p_tile_y0, + OPJ_INT32 * p_tile_x1, OPJ_INT32 * p_tile_y1, + OPJ_UINT32 * p_nb_comps, + OPJ_BOOL * p_should_go_on); + +/** + * Reads a tile data. This function is compulsory and allows one to decode tile data. opj_read_tile_header should be called before. + * The user may need to refer to the image got by opj_read_header to understand the size being taken by the tile. + * + * Note: opj_decode_tile_data() should not be used together with opj_set_decoded_components(). + * + * @param p_codec the jpeg2000 codec. + * @param p_tile_index the index of the tile being decoded, this should be the value set by opj_read_tile_header. + * @param p_data pointer to a memory block that will hold the decoded data. + * @param p_data_size size of p_data. p_data_size should be bigger or equal to the value set by opj_read_tile_header. + * @param p_stream the stream to decode. + * + * @return true if the data could be decoded. + */ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_decode_tile_data(opj_codec_t *p_codec, + OPJ_UINT32 p_tile_index, + OPJ_BYTE * p_data, + OPJ_UINT32 p_data_size, + opj_stream_t *p_stream); + +/* COMPRESSION FUNCTIONS*/ + +/** + * Creates a J2K/JP2 compression structure + * @param format Coder to select + * @return Returns a handle to a compressor if successful, returns NULL otherwise + */ +OPJ_API opj_codec_t* OPJ_CALLCONV opj_create_compress(OPJ_CODEC_FORMAT format); + +/** +Set encoding parameters to default values, that means : +
    +
  • Lossless +
  • 1 tile +
  • Size of precinct : 2^15 x 2^15 (means 1 precinct) +
  • Size of code-block : 64 x 64 +
  • Number of resolutions: 6 +
  • No SOP marker in the codestream +
  • No EPH marker in the codestream +
  • No sub-sampling in x or y direction +
  • No mode switch activated +
  • Progression order: LRCP +
  • No index file +
  • No ROI upshifted +
  • No offset of the origin of the image +
  • No offset of the origin of the tiles +
  • Reversible DWT 5-3 +
+@param parameters Compression parameters +*/ +OPJ_API void OPJ_CALLCONV opj_set_default_encoder_parameters( + opj_cparameters_t *parameters); + +/** + * Setup the encoder parameters using the current image and using user parameters. + * @param p_codec Compressor handle + * @param parameters Compression parameters + * @param image Input filled image + */ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_setup_encoder(opj_codec_t *p_codec, + opj_cparameters_t *parameters, + opj_image_t *image); + +/** + * Start to compress the current image. + * @param p_codec Compressor handle + * @param p_image Input filled image + * @param p_stream Input stgream + */ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_start_compress(opj_codec_t *p_codec, + opj_image_t * p_image, + opj_stream_t *p_stream); + +/** + * End to compress the current image. + * @param p_codec Compressor handle + * @param p_stream Input stgream + */ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_end_compress(opj_codec_t *p_codec, + opj_stream_t *p_stream); + +/** + * Encode an image into a JPEG-2000 codestream + * @param p_codec compressor handle + * @param p_stream Output buffer stream + * + * @return Returns true if successful, returns false otherwise + */ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_encode(opj_codec_t *p_codec, + opj_stream_t *p_stream); +/* +========================================================== + codec output functions definitions +========================================================== +*/ +/* EXPERIMENTAL FUNCTIONS FOR NOW, USED ONLY IN J2K_DUMP*/ + +/** +Destroy Codestream information after compression or decompression +@param cstr_info Codestream information structure +*/ +OPJ_API void OPJ_CALLCONV opj_destroy_cstr_info(opj_codestream_info_v2_t + **cstr_info); + + +/** + * Dump the codec information into the output stream + * + * @param p_codec the jpeg2000 codec. + * @param info_flag type of information dump. + * @param output_stream output stream where dump the information gotten from the codec. + * + */ +OPJ_API void OPJ_CALLCONV opj_dump_codec(opj_codec_t *p_codec, + OPJ_INT32 info_flag, + FILE* output_stream); + +/** + * Get the codestream information from the codec + * + * @param p_codec the jpeg2000 codec. + * + * @return a pointer to a codestream information structure. + * + */ +OPJ_API opj_codestream_info_v2_t* OPJ_CALLCONV opj_get_cstr_info( + opj_codec_t *p_codec); + +/** + * Get the codestream index from the codec + * + * @param p_codec the jpeg2000 codec. + * + * @return a pointer to a codestream index structure. + * + */ +OPJ_API opj_codestream_index_t * OPJ_CALLCONV opj_get_cstr_index( + opj_codec_t *p_codec); + +OPJ_API void OPJ_CALLCONV opj_destroy_cstr_index(opj_codestream_index_t + **p_cstr_index); + + +/** + * Get the JP2 file information from the codec FIXME + * + * @param p_codec the jpeg2000 codec. + * + * @return a pointer to a JP2 metadata structure. + * + */ +OPJ_API opj_jp2_metadata_t* OPJ_CALLCONV opj_get_jp2_metadata( + opj_codec_t *p_codec); + +/** + * Get the JP2 file index from the codec FIXME + * + * @param p_codec the jpeg2000 codec. + * + * @return a pointer to a JP2 index structure. + * + */ +OPJ_API opj_jp2_index_t* OPJ_CALLCONV opj_get_jp2_index(opj_codec_t *p_codec); + + +/* +========================================================== + MCT functions +========================================================== +*/ + +/** + * Sets the MCT matrix to use. + * + * @param parameters the parameters to change. + * @param pEncodingMatrix the encoding matrix. + * @param p_dc_shift the dc shift coefficients to use. + * @param pNbComp the number of components of the image. + * + * @return true if the parameters could be set. + */ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_set_MCT(opj_cparameters_t *parameters, + OPJ_FLOAT32 * pEncodingMatrix, + OPJ_INT32 * p_dc_shift, + OPJ_UINT32 pNbComp); + +/* +========================================================== + Thread functions +========================================================== +*/ + +/** Returns if the library is built with thread support. + * OPJ_TRUE if mutex, condition, thread, thread pool are available. + */ +OPJ_API OPJ_BOOL OPJ_CALLCONV opj_has_thread_support(void); + +/** Return the number of virtual CPUs */ +OPJ_API int OPJ_CALLCONV opj_get_num_cpus(void); + + +#ifdef __cplusplus +} +#endif + +#endif /* OPENJPEG_H */ diff --git a/OpenJPEG/include/openjpeg-2.3/opj_config.h b/OpenJPEG/include/openjpeg-2.3/opj_config.h new file mode 100644 index 0000000..1507a04 --- /dev/null +++ b/OpenJPEG/include/openjpeg-2.3/opj_config.h @@ -0,0 +1,10 @@ +/* create opj_config.h for CMake */ +#define OPJ_HAVE_STDINT_H 1 + +/*--------------------------------------------------------------------------*/ +/* OpenJPEG Versioning */ + +/* Version number. */ +#define OPJ_VERSION_MAJOR 2 +#define OPJ_VERSION_MINOR 3 +#define OPJ_VERSION_BUILD 1 diff --git a/OpenJPEG/include/openjpeg-2.3/opj_stdint.h b/OpenJPEG/include/openjpeg-2.3/opj_stdint.h new file mode 100644 index 0000000..f26c921 --- /dev/null +++ b/OpenJPEG/include/openjpeg-2.3/opj_stdint.h @@ -0,0 +1,52 @@ +/* + * 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) 2012, Mathieu Malaterre + * 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_STDINT_H +#define OPJ_STDINT_H + +#include "opj_config.h" +#ifdef OPJ_HAVE_STDINT_H +#include +#else +#if defined(_WIN32) +typedef signed __int8 int8_t; +typedef unsigned __int8 uint8_t; +typedef signed __int16 int16_t; +typedef unsigned __int16 uint16_t; +typedef signed __int32 int32_t; +typedef unsigned __int32 uint32_t; +typedef signed __int64 int64_t; +typedef unsigned __int64 uint64_t; +#else +#error unsupported platform +#endif +#endif + +#endif /* OPJ_STDINT_H */ diff --git a/OpenJPEG/lib/openjp2.lib b/OpenJPEG/lib/openjp2.lib new file mode 100644 index 0000000..ba37353 Binary files /dev/null and b/OpenJPEG/lib/openjp2.lib differ diff --git a/OpenJPEG/lib/openjpeg-2.3/OpenJPEGConfig.cmake b/OpenJPEG/lib/openjpeg-2.3/OpenJPEGConfig.cmake new file mode 100644 index 0000000..f3171f2 --- /dev/null +++ b/OpenJPEG/lib/openjpeg-2.3/OpenJPEGConfig.cmake @@ -0,0 +1,53 @@ +#----------------------------------------------------------------------------- +# +# OPENJPEGConfig.cmake - CMake configuration file for external projects. +# +# This file is configured by OPENJPEG and used by the UseOPENJPEG.cmake +# module to load OPENJPEG's settings for an external project. + +# The OPENJPEG version number. +set(OPENJPEG_MAJOR_VERSION "2") +set(OPENJPEG_MINOR_VERSION "3") +set(OPENJPEG_BUILD_VERSION "1") + +# The libraries. +set(OPENJPEG_LIBRARIES "openjp2") + +# The CMake macros dir. +set(OPENJPEG_CMAKE_DIR "lib/openjpeg-2.3") + +# The configuration options. +set(OPENJPEG_BUILD_SHARED_LIBS "ON") + +# The "use" file. +set(OPENJPEG_USE_FILE "") + +get_filename_component(SELF_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH) +if(EXISTS ${SELF_DIR}/OpenJPEGTargets.cmake) + # This is an install tree + include(${SELF_DIR}/OpenJPEGTargets.cmake) + + # We find a relative path from the PKG directory to header files. + set(PKG_DIR "C:/Program Files/OPENJPEG/lib/openjpeg-2.3") + set(INC_DIR "C:/Program Files/OPENJPEG/include/openjpeg-2.3") + file(RELATIVE_PATH PKG_TO_INC_RPATH "${PKG_DIR}" "${INC_DIR}") + + get_filename_component(OPENJPEG_INCLUDE_DIRS "${SELF_DIR}/${PKG_TO_INC_RPATH}" ABSOLUTE) + +else() + if(EXISTS ${SELF_DIR}/OpenJPEGExports.cmake) + # This is a build tree + set( OPENJPEG_INCLUDE_DIRS ) + + include(${SELF_DIR}/OpenJPEGExports.cmake) + + else() + message(FATAL_ERROR "ooops") + endif() +endif() + +set(OPENJPEG_USE_FILE ${SELF_DIR}/UseOPENJPEG.cmake) + +# Backward compatible part: +set(OPENJPEG_FOUND TRUE) + diff --git a/OpenJPEG/lib/openjpeg-2.3/OpenJPEGTargets-release.cmake b/OpenJPEG/lib/openjpeg-2.3/OpenJPEGTargets-release.cmake new file mode 100644 index 0000000..7118e7f --- /dev/null +++ b/OpenJPEG/lib/openjpeg-2.3/OpenJPEGTargets-release.cmake @@ -0,0 +1,46 @@ +#---------------------------------------------------------------- +# Generated CMake target import file for configuration "Release". +#---------------------------------------------------------------- + +# Commands may need to know the format version. +set(CMAKE_IMPORT_FILE_VERSION 1) + +# Import target "openjp2" for configuration "Release" +set_property(TARGET openjp2 APPEND PROPERTY IMPORTED_CONFIGURATIONS RELEASE) +set_target_properties(openjp2 PROPERTIES + IMPORTED_IMPLIB_RELEASE "${_IMPORT_PREFIX}/lib/openjp2.lib" + IMPORTED_LOCATION_RELEASE "${_IMPORT_PREFIX}/bin/openjp2.dll" + ) + +list(APPEND _IMPORT_CHECK_TARGETS openjp2 ) +list(APPEND _IMPORT_CHECK_FILES_FOR_openjp2 "${_IMPORT_PREFIX}/lib/openjp2.lib" "${_IMPORT_PREFIX}/bin/openjp2.dll" ) + +# Import target "opj_decompress" for configuration "Release" +set_property(TARGET opj_decompress APPEND PROPERTY IMPORTED_CONFIGURATIONS RELEASE) +set_target_properties(opj_decompress PROPERTIES + IMPORTED_LOCATION_RELEASE "${_IMPORT_PREFIX}/bin/opj_decompress.exe" + ) + +list(APPEND _IMPORT_CHECK_TARGETS opj_decompress ) +list(APPEND _IMPORT_CHECK_FILES_FOR_opj_decompress "${_IMPORT_PREFIX}/bin/opj_decompress.exe" ) + +# Import target "opj_compress" for configuration "Release" +set_property(TARGET opj_compress APPEND PROPERTY IMPORTED_CONFIGURATIONS RELEASE) +set_target_properties(opj_compress PROPERTIES + IMPORTED_LOCATION_RELEASE "${_IMPORT_PREFIX}/bin/opj_compress.exe" + ) + +list(APPEND _IMPORT_CHECK_TARGETS opj_compress ) +list(APPEND _IMPORT_CHECK_FILES_FOR_opj_compress "${_IMPORT_PREFIX}/bin/opj_compress.exe" ) + +# Import target "opj_dump" for configuration "Release" +set_property(TARGET opj_dump APPEND PROPERTY IMPORTED_CONFIGURATIONS RELEASE) +set_target_properties(opj_dump PROPERTIES + IMPORTED_LOCATION_RELEASE "${_IMPORT_PREFIX}/bin/opj_dump.exe" + ) + +list(APPEND _IMPORT_CHECK_TARGETS opj_dump ) +list(APPEND _IMPORT_CHECK_FILES_FOR_opj_dump "${_IMPORT_PREFIX}/bin/opj_dump.exe" ) + +# Commands beyond this point should not need to know the version. +set(CMAKE_IMPORT_FILE_VERSION) diff --git a/OpenJPEG/lib/openjpeg-2.3/OpenJPEGTargets.cmake b/OpenJPEG/lib/openjpeg-2.3/OpenJPEGTargets.cmake new file mode 100644 index 0000000..1619902 --- /dev/null +++ b/OpenJPEG/lib/openjpeg-2.3/OpenJPEGTargets.cmake @@ -0,0 +1,98 @@ +# Generated by CMake + +if("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" LESS 2.5) + message(FATAL_ERROR "CMake >= 2.6.0 required") +endif() +cmake_policy(PUSH) +cmake_policy(VERSION 2.6) +#---------------------------------------------------------------- +# Generated CMake target import file. +#---------------------------------------------------------------- + +# Commands may need to know the format version. +set(CMAKE_IMPORT_FILE_VERSION 1) + +# Protect against multiple inclusion, which would fail when already imported targets are added once more. +set(_targetsDefined) +set(_targetsNotDefined) +set(_expectedTargets) +foreach(_expectedTarget openjp2 opj_decompress opj_compress opj_dump) + list(APPEND _expectedTargets ${_expectedTarget}) + if(NOT TARGET ${_expectedTarget}) + list(APPEND _targetsNotDefined ${_expectedTarget}) + endif() + if(TARGET ${_expectedTarget}) + list(APPEND _targetsDefined ${_expectedTarget}) + endif() +endforeach() +if("${_targetsDefined}" STREQUAL "${_expectedTargets}") + unset(_targetsDefined) + unset(_targetsNotDefined) + unset(_expectedTargets) + set(CMAKE_IMPORT_FILE_VERSION) + cmake_policy(POP) + return() +endif() +if(NOT "${_targetsDefined}" STREQUAL "") + message(FATAL_ERROR "Some (but not all) targets in this export set were already defined.\nTargets Defined: ${_targetsDefined}\nTargets not yet defined: ${_targetsNotDefined}\n") +endif() +unset(_targetsDefined) +unset(_targetsNotDefined) +unset(_expectedTargets) + + +# Compute the installation prefix relative to this file. +get_filename_component(_IMPORT_PREFIX "${CMAKE_CURRENT_LIST_FILE}" PATH) +get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH) +get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH) +if(_IMPORT_PREFIX STREQUAL "/") + set(_IMPORT_PREFIX "") +endif() + +# Create imported target openjp2 +add_library(openjp2 SHARED IMPORTED) + +# Create imported target opj_decompress +add_executable(opj_decompress IMPORTED) + +# Create imported target opj_compress +add_executable(opj_compress IMPORTED) + +# Create imported target opj_dump +add_executable(opj_dump IMPORTED) + +# Load information for each installed configuration. +get_filename_component(_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH) +file(GLOB CONFIG_FILES "${_DIR}/OpenJPEGTargets-*.cmake") +foreach(f ${CONFIG_FILES}) + include(${f}) +endforeach() + +# Cleanup temporary variables. +set(_IMPORT_PREFIX) + +# Loop over all imported files and verify that they actually exist +foreach(target ${_IMPORT_CHECK_TARGETS} ) + foreach(file ${_IMPORT_CHECK_FILES_FOR_${target}} ) + if(NOT EXISTS "${file}" ) + message(FATAL_ERROR "The imported target \"${target}\" references the file + \"${file}\" +but this file does not exist. Possible reasons include: +* The file was deleted, renamed, or moved to another location. +* An install or uninstall procedure did not complete successfully. +* The installation package was faulty and contained + \"${CMAKE_CURRENT_LIST_FILE}\" +but not all the files it references. +") + endif() + endforeach() + unset(_IMPORT_CHECK_FILES_FOR_${target}) +endforeach() +unset(_IMPORT_CHECK_TARGETS) + +# This file does not depend on other imported targets which have +# been exported from the same project but in a separate export set. + +# Commands beyond this point should not need to know the version. +set(CMAKE_IMPORT_FILE_VERSION) +cmake_policy(POP) diff --git a/PdfForQtLib/PdfForQtLib.pro b/PdfForQtLib/PdfForQtLib.pro index ab7b655..9ce735c 100644 --- a/PdfForQtLib/PdfForQtLib.pro +++ b/PdfForQtLib/PdfForQtLib.pro @@ -55,7 +55,8 @@ SOURCES += \ sources/pdfrenderingerrorswidget.cpp \ sources/pdffunction.cpp \ sources/pdfnametounicode.cpp \ - sources/pdffont.cpp + sources/pdffont.cpp \ + sources/pdfimage.cpp HEADERS += \ sources/pdfobject.h \ @@ -84,7 +85,8 @@ HEADERS += \ sources/pdffunction.h \ sources/pdfnametounicode.h \ sources/pdffont.h \ - sources/pdfexception.h + sources/pdfexception.h \ + sources/pdfimage.h FORMS += \ sources/pdfrenderingerrorswidget.ui @@ -99,6 +101,21 @@ freetype_lib.files = $$PWD/../FreeType/freetype.dll freetype_lib.path = $$DESTDIR INSTALLS += freetype_lib +# Link to OpenJPEG library +LIBS += -L$$PWD/../OpenJPEG/lib/ -lopenjp2 +INCLUDEPATH += $$PWD/../OpenJPEG/include/openjpeg-2.3 +DEPENDPATH += $$PWD/../OpenJPEG/include/openjpeg-2.3 + +# Add OpenJPEG to installations +openjpeg_lib.files = $$PWD/../OpenJPEG/openjp2.dll +openjpeg_lib.path = $$DESTDIR +INSTALLS += openjpeg_lib + +# Link to Independent JPEG Groups libjpeg +LIBS += -L$$PWD/../libjpeg/bin/ -ljpeg +INCLUDEPATH += $$PWD/../libjpeg/include +DEPENDPATH += $$PWD/../libjpeg/include + # ensure debug info even for RELEASE build CONFIG += force_debug_info diff --git a/PdfForQtLib/sources/pdfcolorspaces.cpp b/PdfForQtLib/sources/pdfcolorspaces.cpp index 9922512..9fe7ae9 100644 --- a/PdfForQtLib/sources/pdfcolorspaces.cpp +++ b/PdfForQtLib/sources/pdfcolorspaces.cpp @@ -85,6 +85,54 @@ size_t PDFDeviceCMYKColorSpace::getColorComponentCount() const return 4; } +QImage PDFAbstractColorSpace::getImage(const PDFImageData& imageData) const +{ + if (imageData.isValid()) + { + QImage image(imageData.getWidth(), imageData.getHeight(), QImage::Format_RGB888); + image.fill(QColor(Qt::white)); + + // TODO: Implement images with bits different than 8 + Q_ASSERT(imageData.getBitsPerComponent() == 8); + unsigned int componentCount = imageData.getComponents(); + + if (componentCount != getColorComponentCount()) + { + throw PDFParserException(PDFTranslationContext::tr("Invalid colors for color space. Color space has %1 colors. Provided color count is %4.").arg(getColorComponentCount()).arg(componentCount)); + } + + PDFColor color; + color.resize(componentCount); + + for (unsigned int i = 0, rowCount = imageData.getHeight(); i < rowCount; ++i) + { + const unsigned char* rowData = imageData.getRow(i); + unsigned char* outputLine = image.scanLine(i); + + for (unsigned int j = 0; j < imageData.getWidth(); ++j) + { + const unsigned char* currentData = rowData + (j * componentCount); + for (unsigned int k = 0; k < componentCount; ++k) + { + constexpr const double COEFFICIENT = 1.0 / 255.0; + color[k] = currentData[k] * COEFFICIENT; + } + + QColor transformedColor = getColor(color); + QRgb rgb = transformedColor.rgb(); + + *outputLine++ = qRed(rgb); + *outputLine++ = qGreen(rgb); + *outputLine++ = qBlue(rgb); + } + } + + return image; + } + + return QImage(); +} + PDFColorSpacePointer PDFAbstractColorSpace::createColorSpace(const PDFDictionary* colorSpaceDictionary, const PDFDocument* document, const PDFObject& colorSpace) @@ -708,4 +756,12 @@ PDFColorSpacePointer PDFSeparationColorSpace::createSeparationColorSpace(const P return PDFColorSpacePointer(new PDFSeparationColorSpace(qMove(colorName), qMove(alternateColorSpace), qMove(tintTransform))); } +const unsigned char* PDFImageData::getRow(unsigned int rowIndex) const +{ + const unsigned char* data = reinterpret_cast(m_data.constData()); + + Q_ASSERT(rowIndex < m_height); + return data + (rowIndex * m_stride); +} + } // namespace pdf diff --git a/PdfForQtLib/sources/pdfcolorspaces.h b/PdfForQtLib/sources/pdfcolorspaces.h index 4380267..1405d84 100644 --- a/PdfForQtLib/sources/pdfcolorspaces.h +++ b/PdfForQtLib/sources/pdfcolorspaces.h @@ -1,4 +1,4 @@ -// Copyright (C) 2019 Jakub Melka +// Copyright (C) 2019 Jakub Melka // // This file is part of PdfForQt. // @@ -22,6 +22,7 @@ #include "pdffunction.h" #include +#include #include namespace pdf @@ -70,6 +71,57 @@ static constexpr const char* ICCBASED_ALTERNATE = "Alternate"; static constexpr const char* ICCBASED_N = "N"; static constexpr const char* ICCBASED_RANGE = "Range"; +/// Image raw data - containing data for image. Image data are row-ordered, and by components. +/// So the row can be for 3-components RGB like 'RGBRGBRGB...RGB', where size of row in bytes is 3 * width of image. +class PDFImageData +{ +public: + explicit PDFImageData() : + m_components(0), + m_bitsPerComponent(0), + m_width(0), + m_height(0), + m_stride(0) + { + + } + + explicit inline PDFImageData(unsigned int components, + unsigned int bitsPerComponent, + unsigned int width, + unsigned int height, + unsigned int stride, + QByteArray data) : + m_components(components), + m_bitsPerComponent(bitsPerComponent), + m_width(width), + m_height(height), + m_stride(stride), + m_data(qMove(data)) + { + + } + + unsigned int getComponents() const { return m_components; } + unsigned int getBitsPerComponent() const { return m_bitsPerComponent; } + unsigned int getWidth() const { return m_width; } + unsigned int getHeight() const { return m_height; } + unsigned int getStride() const { return m_stride; } + + bool isValid() const { return m_width && m_height && m_components && m_bitsPerComponent; } + + const unsigned char* getRow(unsigned int rowIndex) const; + +private: + unsigned int m_components; + unsigned int m_bitsPerComponent; + unsigned int m_width; + unsigned int m_height; + unsigned int m_stride; + + QByteArray m_data; +}; + using PDFColor3 = std::array; /// Matrix for color component multiplication (for example, conversion between some color spaces) @@ -117,6 +169,7 @@ public: virtual QColor getDefaultColor() const = 0; virtual QColor getColor(const PDFColor& color) const = 0; virtual size_t getColorComponentCount() const = 0; + virtual QImage getImage(const PDFImageData& imageData) const; /// Parses the desired color space. If desired color space is not found, then exception is thrown. /// If everything is OK, then shared pointer to the new color space is returned. diff --git a/PdfForQtLib/sources/pdffont.cpp b/PdfForQtLib/sources/pdffont.cpp index 23c9b0f..651db60 100644 --- a/PdfForQtLib/sources/pdffont.cpp +++ b/PdfForQtLib/sources/pdffont.cpp @@ -430,7 +430,7 @@ void PDFRealizedFontImpl::fillTextSequence(const QByteArray& byteArray, TextSequ if (!glyphIndex) { // Try to obtain glyph index from unicode - if (m_face->charmap->encoding == FT_ENCODING_UNICODE) + if (m_face->charmap && m_face->charmap->encoding == FT_ENCODING_UNICODE) { glyphIndex = FT_Get_Char_Index(m_face, (*encoding)[static_cast(byteArray[i])].unicode()); } diff --git a/PdfForQtLib/sources/pdfimage.cpp b/PdfForQtLib/sources/pdfimage.cpp new file mode 100644 index 0000000..7bd5c6a --- /dev/null +++ b/PdfForQtLib/sources/pdfimage.cpp @@ -0,0 +1,356 @@ +// Copyright (C) 2019 Jakub Melka +// +// This file is part of PdfForQt. +// +// PdfForQt is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// PdfForQt is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with PDFForQt. If not, see . + +#include "pdfimage.h" +#include "pdfdocument.h" +#include "pdfconstants.h" +#include "pdfexception.h" + +#include +#include + +namespace pdf +{ + +struct PDFJPEG2000ImageData +{ + const QByteArray* byteArray = nullptr; + OPJ_SIZE_T position = 0; + + static OPJ_SIZE_T read(void* p_buffer, OPJ_SIZE_T p_nb_bytes, void* p_user_data); + static OPJ_BOOL seek(OPJ_OFF_T p_nb_bytes, void* p_user_data); + static OPJ_OFF_T skip(OPJ_OFF_T p_nb_bytes, void* p_user_data); +}; + +struct PDFJPEGDCTSource +{ + jpeg_source_mgr sourceManager; + const QByteArray* buffer = nullptr; +}; + +PDFImage PDFImage::createImage(const PDFDocument* document, const PDFStream* stream, PDFColorSpacePointer colorSpace) +{ + PDFImage image; + image.m_colorSpace = colorSpace; + + // TODO: Implement ImageMask + // TODO: Implement Mask + // TODO: Implement Decode + // TODO: Implement SMask + // TODO: Implement SMaskInData + + const PDFDictionary* dictionary = stream->getDictionary(); + QByteArray content = document->getDecodedStream(stream); + PDFDocumentDataLoaderDecorator loader(document); + + if (content.isEmpty()) + { + throw PDFParserException(PDFTranslationContext::tr("Image has not data.")); + } + + // Retrieve filters + PDFObject filters; + if (dictionary->hasKey(PDF_STREAM_DICT_FILTER)) + { + filters = document->getObject(dictionary->get(PDF_STREAM_DICT_FILTER)); + } + else if (dictionary->hasKey(PDF_STREAM_DICT_FILE_FILTER)) + { + filters = document->getObject(dictionary->get(PDF_STREAM_DICT_FILE_FILTER)); + } + + // Retrieve filter parameters + PDFObject filterParameters; + if (dictionary->hasKey(PDF_STREAM_DICT_DECODE_PARMS)) + { + filterParameters = document->getObject(dictionary->get(PDF_STREAM_DICT_DECODE_PARMS)); + } + else if (dictionary->hasKey(PDF_STREAM_DICT_FDECODE_PARMS)) + { + filterParameters = document->getObject(dictionary->get(PDF_STREAM_DICT_FDECODE_PARMS)); + } + + QByteArray imageFilterName; + if (filters.isName()) + { + imageFilterName = filters.getString(); + } + else if (filters.isArray()) + { + const PDFArray* filterArray = filters.getArray(); + const size_t filterCount = filterArray->getCount(); + + if (filterCount) + { + const PDFObject& object = document->getObject(filterArray->getItem(filterCount - 1)); + if (object.isName()) + { + imageFilterName = object.getString(); + } + } + } + + if (imageFilterName == "DCTDecode" || imageFilterName == "DCT") + { + // TODO: Check, if mutex is needed + // Used library is not thread safe. We must use a mutex! + static QMutex mutex; + QMutexLocker lock(&mutex); + + int colorTransform = loader.readIntegerFromDictionary(dictionary, "ColorTransform", -1); + + jpeg_decompress_struct codec; + jpeg_error_mgr errorManager; + std::memset(&codec, 0, sizeof(jpeg_decompress_struct)); + std::memset(&errorManager, 0, sizeof(errorManager)); + + PDFJPEGDCTSource source; + source.buffer = &content; + std::memset(&source.sourceManager, 0, sizeof(jpeg_source_mgr)); + + auto errorMethod = [](j_common_ptr ptr) + { + char buffer[JMSG_LENGTH_MAX] = { }; + (ptr->err->format_message)(ptr, buffer); + + jpeg_destroy(ptr); + throw PDFParserException(PDFTranslationContext::tr("Error reading JPEG (DCT) image: %1.").arg(QString::fromLatin1(buffer))); + }; + + auto fillInputBufferMethod = [](j_decompress_ptr decompress) -> boolean + { + PDFJPEGDCTSource* source = reinterpret_cast(decompress->src); + + if (!source->sourceManager.next_input_byte) + { + const QByteArray* buffer = source->buffer; + source->sourceManager.next_input_byte = reinterpret_cast(buffer->constData()); + source->sourceManager.bytes_in_buffer = buffer->size(); + return TRUE; + } + + return FALSE; + }; + + auto skipInputDataMethod = [](j_decompress_ptr decompress, long num_bytes) + { + PDFJPEGDCTSource* source = reinterpret_cast(decompress->src); + + const size_t skippedBytes = qMin(source->sourceManager.bytes_in_buffer, static_cast(num_bytes)); + source->sourceManager.next_input_byte += skippedBytes; + source->sourceManager.bytes_in_buffer -= skippedBytes; + }; + + source.sourceManager.bytes_in_buffer = 0; + source.sourceManager.next_input_byte = nullptr; + source.sourceManager.init_source = [](j_decompress_ptr) { }; + source.sourceManager.fill_input_buffer = fillInputBufferMethod; + source.sourceManager.skip_input_data = skipInputDataMethod; + source.sourceManager.resync_to_restart = jpeg_resync_to_restart; + source.sourceManager.term_source = [](j_decompress_ptr) { }; + + jpeg_std_error(&errorManager); + errorManager.error_exit = errorMethod; + codec.err = &errorManager; + + jpeg_create_decompress(&codec); + codec.src = reinterpret_cast(&source); + + if (jpeg_read_header(&codec, TRUE) == JPEG_HEADER_OK) + { + // Determine color transform + if (colorTransform == -1 && codec.saw_Adobe_marker) + { + colorTransform = codec.Adobe_transform; + } + + // Set the input transform + if (colorTransform > -1) + { + switch (codec.num_components) + { + case 3: + { + codec.jpeg_color_space = colorTransform ? JCS_YCbCr : JCS_RGB; + break; + } + + case 4: + { + codec.jpeg_color_space = colorTransform ? JCS_YCCK : JCS_CMYK; + break; + } + + default: + break; + } + } + + jpeg_start_decompress(&codec); + + const JDIMENSION rowStride = codec.output_width * codec.output_components; + JSAMPARRAY samples = codec.mem->alloc_sarray(reinterpret_cast(&codec), JPOOL_IMAGE, rowStride, 1); + JDIMENSION scanLineCount = codec.output_height; + + const unsigned int width = codec.output_width; + const unsigned int height = codec.output_height; + const unsigned int components = codec.output_components; + const unsigned int bitsPerComponent = 8; + QByteArray buffer(rowStride * height, 0); + JSAMPROW rowData = reinterpret_cast(buffer.data()); + + while (scanLineCount) + { + JDIMENSION readCount = jpeg_read_scanlines(&codec, samples, 1); + std::memcpy(rowData, samples[0], rowStride); + scanLineCount -= readCount; + rowData += rowStride; + } + + jpeg_finish_decompress(&codec); + image.m_imageData = PDFImageData(components, bitsPerComponent, width, height, rowStride, qMove(buffer)); + } + + jpeg_destroy_decompress(&codec); + } + else if (imageFilterName == "JPXDecode") + { + PDFJPEG2000ImageData imageData; + imageData.byteArray = &content; + imageData.position = 0; + + opj_stream_t* stream = opj_stream_default_create(OPJ_TRUE); + opj_stream_set_user_data(stream, &imageData, nullptr); + opj_stream_set_user_data_length(stream, sizeof(PDFJPEG2000ImageData)); + opj_stream_set_read_function(stream, &PDFJPEG2000ImageData::read); + opj_stream_set_seek_function(stream, &PDFJPEG2000ImageData::seek); + opj_stream_set_skip_function(stream, &PDFJPEG2000ImageData::skip); + + opj_dparameters_t decompressParameters; + opj_set_default_decoder_parameters(&decompressParameters); + + CODEC_FORMAT formats[] = { OPJ_CODEC_J2K, OPJ_CODEC_JPT, OPJ_CODEC_JP2, OPJ_CODEC_JPP, OPJ_CODEC_JPX }; + for (CODEC_FORMAT format : formats) + { + opj_codec_t* codec = opj_create_decompress(format); + + if (!codec) + { + // Codec is not present + continue; + } + + // Setup the decoder + opj_setup_decoder(codec, &decompressParameters); + + // Try to read the header + opj_image_t* image = nullptr; + if (opj_read_header(stream, codec, &image)) + { + if (opj_set_decode_area(codec, image, decompressParameters.DA_x0, decompressParameters.DA_y0, decompressParameters.DA_x1, decompressParameters.DA_y1)) + { + if (opj_decode(codec, stream, image)) + { + if (opj_end_decompress(codec, stream)) + { + + } + } + } + } + + opj_destroy_codec(codec); + } + + opj_stream_destroy(stream); + stream = nullptr; + } + + return image; +} + +QImage PDFImage::getImage() const +{ + if (m_colorSpace) + { + return m_colorSpace->getImage(m_imageData); + } + + return QImage(); +} + +OPJ_SIZE_T PDFJPEG2000ImageData::read(void* p_buffer, OPJ_SIZE_T p_nb_bytes, void* p_user_data) +{ + PDFJPEG2000ImageData* data = reinterpret_cast(p_user_data); + + // Remaining length + OPJ_OFF_T length = static_cast(data->byteArray->size()) - data->position; + + if (length < 0) + { + length = 0; + } + + if (length > static_cast(p_nb_bytes)) + { + length = static_cast(p_nb_bytes); + } + + if (length > 0) + { + std::memcpy(p_buffer, data->byteArray->constData() + data->position, length); + data->position += length; + } + + return length; +} + +OPJ_BOOL PDFJPEG2000ImageData::seek(OPJ_OFF_T p_nb_bytes, void* p_user_data) +{ + PDFJPEG2000ImageData* data = reinterpret_cast(p_user_data); + + if (p_nb_bytes >= data->byteArray->size()) + { + return OPJ_FALSE; + } + + data->position = p_nb_bytes; + return OPJ_TRUE; +} + +OPJ_OFF_T PDFJPEG2000ImageData::skip(OPJ_OFF_T p_nb_bytes, void* p_user_data) +{ + PDFJPEG2000ImageData* data = reinterpret_cast(p_user_data); + + // Remaining length + OPJ_OFF_T length = static_cast(data->byteArray->size()) - data->position; + + if (length < 0) + { + length = 0; + } + + if (length > static_cast(p_nb_bytes)) + { + length = static_cast(p_nb_bytes); + } + + data->position += length; + return length; +} + +} // namespace pdf diff --git a/PdfForQtLib/sources/pdfimage.h b/PdfForQtLib/sources/pdfimage.h new file mode 100644 index 0000000..d7634bf --- /dev/null +++ b/PdfForQtLib/sources/pdfimage.h @@ -0,0 +1,54 @@ +// Copyright (C) 2019 Jakub Melka +// +// This file is part of PdfForQt. +// +// PdfForQt is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// PdfForQt is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with PDFForQt. If not, see . + +#ifndef PDFIMAGE_H +#define PDFIMAGE_H + +#include "pdfcolorspaces.h" + +#include + +class QByteArray; + +namespace pdf +{ +class PDFStream; +class PDFDocument; + +class PDFImage +{ +public: + + /// Creates image from the content and the dictionary. If image can't be created, then exception is thrown. + /// \param document Document + /// \param stream Stream with image + /// \param colorSpace Color space of the image + static PDFImage createImage(const PDFDocument* document, const PDFStream* stream, PDFColorSpacePointer colorSpace); + + /// Returns image transformed from image data and color space + QImage getImage() const; + +private: + PDFImage() = default; + + PDFImageData m_imageData; + PDFColorSpacePointer m_colorSpace; +}; + +} // namespace pdf + +#endif // PDFIMAGE_H diff --git a/PdfForQtLib/sources/pdfpagecontentprocessor.cpp b/PdfForQtLib/sources/pdfpagecontentprocessor.cpp index 68bb763..f19cf25 100644 --- a/PdfForQtLib/sources/pdfpagecontentprocessor.cpp +++ b/PdfForQtLib/sources/pdfpagecontentprocessor.cpp @@ -18,6 +18,7 @@ #include "pdfpagecontentprocessor.h" #include "pdfdocument.h" #include "pdfexception.h" +#include "pdfimage.h" namespace pdf { @@ -156,6 +157,7 @@ PDFPageContentProcessor::PDFPageContentProcessor(const PDFPage* page, const PDFD m_fontCache(fontCache), m_colorSpaceDictionary(nullptr), m_fontDictionary(nullptr), + m_xobjectDictionary(nullptr), m_textBeginEndState(0) { Q_ASSERT(page); @@ -178,6 +180,7 @@ PDFPageContentProcessor::PDFPageContentProcessor(const PDFPage* page, const PDFD m_colorSpaceDictionary = getDictionary(COLOR_SPACE_DICTIONARY); m_fontDictionary = getDictionary("Font"); + m_xobjectDictionary = getDictionary("XObject"); } PDFPageContentProcessor::~PDFPageContentProcessor() @@ -277,6 +280,11 @@ void PDFPageContentProcessor::performClipping(const QPainterPath& path, Qt::Fill Q_UNUSED(fillRule); } +void PDFPageContentProcessor::performImagePainting(const QImage& image) +{ + Q_UNUSED(image); +} + void PDFPageContentProcessor::performUpdateGraphicsState(const PDFPageContentProcessorState& state) { if (state.getStateFlags().testFlag(PDFPageContentProcessorState::StateTextFont) || @@ -738,6 +746,13 @@ void PDFPageContentProcessor::processCommand(const QByteArray& command) break; } + case Operator::PaintXObject: + { + // Do, paint the X Object (image, form, ...) + invokeOperator(&PDFPageContentProcessor::operatorPaintXObject); + break; + } + case Operator::Invalid: { m_errorList.append(PDFRenderError(RenderErrorType::Error, PDFTranslationContext::tr("Unknown operator '%1'.").arg(QString::fromLatin1(command)))); @@ -1752,6 +1767,64 @@ void PDFPageContentProcessor::operatorTextSetSpacingAndShowText(PDFReal t_w, PDF operatorTextNextLineShowText(qMove(text)); } +void PDFPageContentProcessor::operatorPaintXObject(PDFPageContentProcessor::PDFOperandName name) +{ + if (m_xobjectDictionary) + { + const PDFObject& object = m_document->getObject(m_xobjectDictionary->get(name.name)); + if (object.isStream()) + { + const PDFStream* stream = object.getStream(); + const PDFDictionary* streamDictionary = stream->getDictionary(); + + PDFDocumentDataLoaderDecorator loader(m_document); + QByteArray subtype = loader.readNameFromDictionary(streamDictionary, "Subtype"); + if (subtype == "Image") + { + PDFColorSpacePointer colorSpace; + + if (streamDictionary->hasKey("ColorSpace")) + { + const PDFObject& colorSpaceObject = m_document->getObject(streamDictionary->get("ColorSpace")); + if (colorSpaceObject.isName() || colorSpaceObject.isArray()) + { + colorSpace = PDFAbstractColorSpace::createColorSpace(m_colorSpaceDictionary, m_document, colorSpaceObject); + } + else if (!colorSpaceObject.isNull()) + { + throw PDFRendererException(RenderErrorType::Error, PDFTranslationContext::tr("Invalid color space of the image.")); + } + } + + PDFImage pdfImage = PDFImage::createImage(m_document, stream, qMove(colorSpace)); + QImage image = pdfImage.getImage(); + + if (!image.isNull()) + { + performImagePainting(image); + } + else + { + throw PDFRendererException(RenderErrorType::Error, PDFTranslationContext::tr("Can't decode the image.")); + } + } + else + { + // TODO: Handle another XObjects + throw PDFRendererException(RenderErrorType::NotImplemented, PDFTranslationContext::tr("Unknown XObject type '%1'.").arg(QString::fromLatin1(subtype))); + } + } + else + { + throw PDFRendererException(RenderErrorType::Error, PDFTranslationContext::tr("Invalid format of XObject. Dictionary expected.")); + } + } + else + { + throw PDFRendererException(RenderErrorType::Error, PDFTranslationContext::tr("XObject resource dictionary not found.")); + } +} + void PDFPageContentProcessor::drawText(const TextSequence& textSequence) { if (textSequence.items.empty()) diff --git a/PdfForQtLib/sources/pdfpagecontentprocessor.h b/PdfForQtLib/sources/pdfpagecontentprocessor.h index ea2f0b6..d2ba83c 100644 --- a/PdfForQtLib/sources/pdfpagecontentprocessor.h +++ b/PdfForQtLib/sources/pdfpagecontentprocessor.h @@ -355,6 +355,11 @@ protected: /// clip along the path (intersect with current clipping path). virtual void performClipping(const QPainterPath& path, Qt::FillRule fillRule); + /// This function has to be implemented in the client drawing implementation, it should + /// draw the image. + /// \param image Image to be painted + virtual void performImagePainting(const QImage& image); + /// This function has to be implemented in the client drawing implementation, it should /// update the device according to the graphic state change. The flags are set when /// the value differs from the previous graphic state. @@ -554,6 +559,9 @@ private: void operatorTextNextLineShowText(PDFOperandString text); ///< ', move to the next line and show text ("string '" is equivalent to "T* string Tj") void operatorTextSetSpacingAndShowText(PDFReal t_w, PDFReal t_c, PDFOperandString text); ///< ", move to the next line, set spacing and show text (equivalent to sequence "w1 Tw w2 Tc string '") + // XObject: Do + void operatorPaintXObject(PDFOperandName name); ///< Do, paint the X Object (image, form, ...) + // Draws the text using the text sequence void drawText(const TextSequence& textSequence); @@ -574,6 +582,7 @@ private: const PDFFontCache* m_fontCache; const PDFDictionary* m_colorSpaceDictionary; const PDFDictionary* m_fontDictionary; + const PDFDictionary* m_xobjectDictionary; // Default color spaces PDFColorSpacePointer m_deviceGrayColorSpace; diff --git a/PdfForQtLib/sources/pdfpainter.cpp b/PdfForQtLib/sources/pdfpainter.cpp index d73e88b..a93ea67 100644 --- a/PdfForQtLib/sources/pdfpainter.cpp +++ b/PdfForQtLib/sources/pdfpainter.cpp @@ -82,6 +82,25 @@ void PDFPainter::performClipping(const QPainterPath& path, Qt::FillRule fillRule m_painter->setClipPath(path, Qt::IntersectClip); } +void PDFPainter::performImagePainting(const QImage& image) +{ + m_painter->save(); + + // TODO: Draw smooth images + QMatrix imageTransform(1.0 / image.width(), 0, 0, 1.0 / image.height(), 0, 0); + QMatrix worldMatrix = imageTransform * m_painter->worldMatrix(); + + // Because Qt uses opposite axis direction than PDF, then we must transform the y-axis + // to the opposite (so the image is then unchanged) + worldMatrix.translate(0, image.height()); + worldMatrix.scale(1, -1); + + m_painter->setWorldMatrix(worldMatrix); + m_painter->drawImage(0, 0, image); + + m_painter->restore(); +} + void PDFPainter::performUpdateGraphicsState(const PDFPageContentProcessorState& state) { const PDFPageContentProcessorState::StateFlags flags = state.getStateFlags(); diff --git a/PdfForQtLib/sources/pdfpainter.h b/PdfForQtLib/sources/pdfpainter.h index d8008f9..b7676d4 100644 --- a/PdfForQtLib/sources/pdfpainter.h +++ b/PdfForQtLib/sources/pdfpainter.h @@ -51,6 +51,7 @@ public: protected: virtual void performPathPainting(const QPainterPath& path, bool stroke, bool fill, bool text, Qt::FillRule fillRule) override; virtual void performClipping(const QPainterPath& path, Qt::FillRule fillRule) override; + virtual void performImagePainting(const QImage& image); virtual void performUpdateGraphicsState(const PDFPageContentProcessorState& state) override; virtual void performSaveGraphicState(ProcessOrder order) override; virtual void performRestoreGraphicState(ProcessOrder order) override; diff --git a/libjpeg/README b/libjpeg/README new file mode 100644 index 0000000..c9853af --- /dev/null +++ b/libjpeg/README @@ -0,0 +1,378 @@ +The Independent JPEG Group's JPEG software +========================================== + +README for release 9c of 14-Jan-2018 +==================================== + +This distribution contains the ninth public release of the Independent JPEG +Group's free JPEG software. You are welcome to redistribute this software and +to use it for any purpose, subject to the conditions under LEGAL ISSUES, below. + +This software is the work of Tom Lane, Guido Vollbeding, Philip Gladstone, +Bill Allombert, Jim Boucher, Lee Crocker, Bob Friesenhahn, Ben Jackson, +Julian Minguillon, Luis Ortiz, George Phillips, Davide Rossi, Ge' Weijers, +and other members of the Independent JPEG Group. + +IJG is not affiliated with the ISO/IEC JTC1/SC29/WG1 standards committee +(previously known as JPEG, together with ITU-T SG16). + + +DOCUMENTATION ROADMAP +===================== + +This file contains the following sections: + +OVERVIEW General description of JPEG and the IJG software. +LEGAL ISSUES Copyright, lack of warranty, terms of distribution. +REFERENCES Where to learn more about JPEG. +ARCHIVE LOCATIONS Where to find newer versions of this software. +ACKNOWLEDGMENTS Special thanks. +FILE FORMAT WARS Software *not* to get. +TO DO Plans for future IJG releases. + +Other documentation files in the distribution are: + +User documentation: + install.txt How to configure and install the IJG software. + usage.txt Usage instructions for cjpeg, djpeg, jpegtran, + rdjpgcom, and wrjpgcom. + *.1 Unix-style man pages for programs (same info as usage.txt). + wizard.txt Advanced usage instructions for JPEG wizards only. + change.log Version-to-version change highlights. +Programmer and internal documentation: + libjpeg.txt How to use the JPEG library in your own programs. + example.c Sample code for calling the JPEG library. + structure.txt Overview of the JPEG library's internal structure. + filelist.txt Road map of IJG files. + coderules.txt Coding style rules --- please read if you contribute code. + +Please read at least the files install.txt and usage.txt. Some information +can also be found in the JPEG FAQ (Frequently Asked Questions) article. See +ARCHIVE LOCATIONS below to find out where to obtain the FAQ article. + +If you want to understand how the JPEG code works, we suggest reading one or +more of the REFERENCES, then looking at the documentation files (in roughly +the order listed) before diving into the code. + + +OVERVIEW +======== + +This package contains C software to implement JPEG image encoding, decoding, +and transcoding. JPEG (pronounced "jay-peg") is a standardized compression +method for full-color and grayscale images. + +This software implements JPEG baseline, extended-sequential, and progressive +compression processes. Provision is made for supporting all variants of these +processes, although some uncommon parameter settings aren't implemented yet. +We have made no provision for supporting the hierarchical or lossless +processes defined in the standard. + +We provide a set of library routines for reading and writing JPEG image files, +plus two sample applications "cjpeg" and "djpeg", which use the library to +perform conversion between JPEG and some other popular image file formats. +The library is intended to be reused in other applications. + +In order to support file conversion and viewing software, we have included +considerable functionality beyond the bare JPEG coding/decoding capability; +for example, the color quantization modules are not strictly part of JPEG +decoding, but they are essential for output to colormapped file formats or +colormapped displays. These extra functions can be compiled out of the +library if not required for a particular application. + +We have also included "jpegtran", a utility for lossless transcoding between +different JPEG processes, and "rdjpgcom" and "wrjpgcom", two simple +applications for inserting and extracting textual comments in JFIF files. + +The emphasis in designing this software has been on achieving portability and +flexibility, while also making it fast enough to be useful. In particular, +the software is not intended to be read as a tutorial on JPEG. (See the +REFERENCES section for introductory material.) Rather, it is intended to +be reliable, portable, industrial-strength code. We do not claim to have +achieved that goal in every aspect of the software, but we strive for it. + +We welcome the use of this software as a component of commercial products. +No royalty is required, but we do ask for an acknowledgement in product +documentation, as described under LEGAL ISSUES. + + +LEGAL ISSUES +============ + +In plain English: + +1. We don't promise that this software works. (But if you find any bugs, + please let us know!) +2. You can use this software for whatever you want. You don't have to pay us. +3. You may not pretend that you wrote this software. If you use it in a + program, you must acknowledge somewhere in your documentation that + you've used the IJG code. + +In legalese: + +The authors make NO WARRANTY or representation, either express or implied, +with respect to this software, its quality, accuracy, merchantability, or +fitness for a particular purpose. This software is provided "AS IS", and you, +its user, assume the entire risk as to its quality and accuracy. + +This software is copyright (C) 1991-2018, Thomas G. Lane, Guido Vollbeding. +All Rights Reserved except as specified below. + +Permission is hereby granted to use, copy, modify, and distribute this +software (or portions thereof) for any purpose, without fee, subject to these +conditions: +(1) If any part of the source code for this software is distributed, then this +README file must be included, with this copyright and no-warranty notice +unaltered; and any additions, deletions, or changes to the original files +must be clearly indicated in accompanying documentation. +(2) If only executable code is distributed, then the accompanying +documentation must state that "this software is based in part on the work of +the Independent JPEG Group". +(3) Permission for use of this software is granted only if the user accepts +full responsibility for any undesirable consequences; the authors accept +NO LIABILITY for damages of any kind. + +These conditions apply to any software derived from or based on the IJG code, +not just to the unmodified library. If you use our work, you ought to +acknowledge us. + +Permission is NOT granted for the use of any IJG author's name or company name +in advertising or publicity relating to this software or products derived from +it. This software may be referred to only as "the Independent JPEG Group's +software". + +We specifically permit and encourage the use of this software as the basis of +commercial products, provided that all warranty or liability claims are +assumed by the product vendor. + + +The Unix configuration script "configure" was produced with GNU Autoconf. +It is copyright by the Free Software Foundation but is freely distributable. +The same holds for its supporting scripts (config.guess, config.sub, +ltmain.sh). Another support script, install-sh, is copyright by X Consortium +but is also freely distributable. + +The IJG distribution formerly included code to read and write GIF files. +To avoid entanglement with the Unisys LZW patent (now expired), GIF reading +support has been removed altogether, and the GIF writer has been simplified +to produce "uncompressed GIFs". This technique does not use the LZW +algorithm; the resulting GIF files are larger than usual, but are readable +by all standard GIF decoders. + + +REFERENCES +========== + +We recommend reading one or more of these references before trying to +understand the innards of the JPEG software. + +The best short technical introduction to the JPEG compression algorithm is + Wallace, Gregory K. "The JPEG Still Picture Compression Standard", + Communications of the ACM, April 1991 (vol. 34 no. 4), pp. 30-44. +(Adjacent articles in that issue discuss MPEG motion picture compression, +applications of JPEG, and related topics.) If you don't have the CACM issue +handy, a PDF file containing a revised version of Wallace's article is +available at http://www.ijg.org/files/Wallace.JPEG.pdf. The file (actually +a preprint for an article that appeared in IEEE Trans. Consumer Electronics) +omits the sample images that appeared in CACM, but it includes corrections +and some added material. Note: the Wallace article is copyright ACM and IEEE, +and it may not be used for commercial purposes. + +A somewhat less technical, more leisurely introduction to JPEG can be found in +"The Data Compression Book" by Mark Nelson and Jean-loup Gailly, published by +M&T Books (New York), 2nd ed. 1996, ISBN 1-55851-434-1. This book provides +good explanations and example C code for a multitude of compression methods +including JPEG. It is an excellent source if you are comfortable reading C +code but don't know much about data compression in general. The book's JPEG +sample code is far from industrial-strength, but when you are ready to look +at a full implementation, you've got one here... + +The best currently available description of JPEG is the textbook "JPEG Still +Image Data Compression Standard" by William B. Pennebaker and Joan L. +Mitchell, published by Van Nostrand Reinhold, 1993, ISBN 0-442-01272-1. +Price US$59.95, 638 pp. The book includes the complete text of the ISO JPEG +standards (DIS 10918-1 and draft DIS 10918-2). +Although this is by far the most detailed and comprehensive exposition of +JPEG publicly available, we point out that it is still missing an explanation +of the most essential properties and algorithms of the underlying DCT +technology. +If you think that you know about DCT-based JPEG after reading this book, +then you are in delusion. The real fundamentals and corresponding potential +of DCT-based JPEG are not publicly known so far, and that is the reason for +all the mistaken developments taking place in the image coding domain. + +The original JPEG standard is divided into two parts, Part 1 being the actual +specification, while Part 2 covers compliance testing methods. Part 1 is +titled "Digital Compression and Coding of Continuous-tone Still Images, +Part 1: Requirements and guidelines" and has document numbers ISO/IEC IS +10918-1, ITU-T T.81. Part 2 is titled "Digital Compression and Coding of +Continuous-tone Still Images, Part 2: Compliance testing" and has document +numbers ISO/IEC IS 10918-2, ITU-T T.83. +IJG JPEG 8 introduced an implementation of the JPEG SmartScale extension +which is specified in two documents: A contributed document at ITU and ISO +with title "ITU-T JPEG-Plus Proposal for Extending ITU-T T.81 for Advanced +Image Coding", April 2006, Geneva, Switzerland. The latest version of this +document is Revision 3. And a contributed document ISO/IEC JTC1/SC29/WG1 N +5799 with title "Evolution of JPEG", June/July 2011, Berlin, Germany. +IJG JPEG 9 introduces a reversible color transform for improved lossless +compression which is described in a contributed document ISO/IEC JTC1/SC29/ +WG1 N 6080 with title "JPEG 9 Lossless Coding", June/July 2012, Paris, +France. + +The JPEG standard does not specify all details of an interchangeable file +format. For the omitted details we follow the "JFIF" conventions, version 2. +JFIF version 1 has been adopted as Recommendation ITU-T T.871 (05/2011) : +Information technology - Digital compression and coding of continuous-tone +still images: JPEG File Interchange Format (JFIF). It is available as a +free download in PDF file format from http://www.itu.int/rec/T-REC-T.871. +A PDF file of the older JFIF document is available at +http://www.w3.org/Graphics/JPEG/jfif3.pdf. + +The TIFF 6.0 file format specification can be obtained by FTP from +ftp://ftp.sgi.com/graphics/tiff/TIFF6.ps.gz. The JPEG incorporation scheme +found in the TIFF 6.0 spec of 3-June-92 has a number of serious problems. +IJG does not recommend use of the TIFF 6.0 design (TIFF Compression tag 6). +Instead, we recommend the JPEG design proposed by TIFF Technical Note #2 +(Compression tag 7). Copies of this Note can be obtained from +http://www.ijg.org/files/. It is expected that the next revision +of the TIFF spec will replace the 6.0 JPEG design with the Note's design. +Although IJG's own code does not support TIFF/JPEG, the free libtiff library +uses our library to implement TIFF/JPEG per the Note. + + +ARCHIVE LOCATIONS +================= + +The "official" archive site for this software is www.ijg.org. +The most recent released version can always be found there in +directory "files". This particular version will be archived as +http://www.ijg.org/files/jpegsrc.v9c.tar.gz, and in Windows-compatible +"zip" archive format as http://www.ijg.org/files/jpegsr9c.zip. + +The JPEG FAQ (Frequently Asked Questions) article is a source of some +general information about JPEG. +It is available on the World Wide Web at http://www.faqs.org/faqs/jpeg-faq/ +and other news.answers archive sites, including the official news.answers +archive at rtfm.mit.edu: ftp://rtfm.mit.edu/pub/usenet/news.answers/jpeg-faq/. +If you don't have Web or FTP access, send e-mail to mail-server@rtfm.mit.edu +with body + send usenet/news.answers/jpeg-faq/part1 + send usenet/news.answers/jpeg-faq/part2 + + +ACKNOWLEDGMENTS +=============== + +Thank to Juergen Bruder for providing me with a copy of the common DCT +algorithm article, only to find out that I had come to the same result +in a more direct and comprehensible way with a more generative approach. + +Thank to Istvan Sebestyen and Joan L. Mitchell for inviting me to the +ITU JPEG (Study Group 16) meeting in Geneva, Switzerland. + +Thank to Thomas Wiegand and Gary Sullivan for inviting me to the +Joint Video Team (MPEG & ITU) meeting in Geneva, Switzerland. + +Thank to Thomas Richter and Daniel Lee for inviting me to the +ISO/IEC JTC1/SC29/WG1 (previously known as JPEG, together with ITU-T SG16) +meeting in Berlin, Germany. + +Thank to John Korejwa and Massimo Ballerini for inviting me to +fruitful consultations in Boston, MA and Milan, Italy. + +Thank to Hendrik Elstner, Roland Fassauer, Simone Zuck, Guenther +Maier-Gerber, Walter Stoeber, Fred Schmitz, and Norbert Braunagel +for corresponding business development. + +Thank to Nico Zschach and Dirk Stelling of the technical support team +at the Digital Images company in Halle for providing me with extra +equipment for configuration tests. + +Thank to Richard F. Lyon (then of Foveon Inc.) for fruitful +communication about JPEG configuration in Sigma Photo Pro software. + +Thank to Andrew Finkenstadt for hosting the ijg.org site. + +Thank to Thomas G. Lane for the original design and development of +this singular software package. + +Thank to Lars Goehler, Andreas Heinecke, Sebastian Fuss, Yvonne Roebert, +Andrej Werner, and Ulf-Dietrich Braumann for support and public relations. + + +FILE FORMAT WARS +================ + +The ISO/IEC JTC1/SC29/WG1 standards committee (previously known as JPEG, +together with ITU-T SG16) currently promotes different formats containing +the name "JPEG" which is misleading because these formats are incompatible +with original DCT-based JPEG and are based on faulty technologies. +IJG therefore does not and will not support such momentary mistakes +(see REFERENCES). +There exist also distributions under the name "OpenJPEG" promoting such +kind of formats which is misleading because they don't support original +JPEG images. +We have no sympathy for the promotion of inferior formats. Indeed, one of +the original reasons for developing this free software was to help force +convergence on common, interoperable format standards for JPEG files. +Don't use an incompatible file format! +(In any case, our decoder will remain capable of reading existing JPEG +image files indefinitely.) + +The ISO committee pretends to be "responsible for the popular JPEG" in their +public reports which is not true because they don't respond to actual +requirements for the maintenance of the original JPEG specification. +Furthermore, the ISO committee pretends to "ensure interoperability" with +their standards which is not true because their "standards" support only +application-specific and proprietary use cases and contain mathematically +incorrect code. + +There are currently different distributions in circulation containing the +name "libjpeg" which is misleading because they don't have the features and +are incompatible with formats supported by actual IJG libjpeg distributions. +One of those fakes is released by members of the ISO committee and just uses +the name of libjpeg for misdirection of people, similar to the abuse of the +name JPEG as described above, while having nothing in common with actual IJG +libjpeg distributions and containing mathematically incorrect code. +The other one claims to be a "derivative" or "fork" of the original libjpeg, +but violates the license conditions as described under LEGAL ISSUES above +and violates basic C programming properties. +We have no sympathy for the release of misleading, incorrect and illegal +distributions derived from obsolete code bases. +Don't use an obsolete code base! + +According to the UCC (Uniform Commercial Code) law, IJG has the lawful and +legal right to foreclose on certain standardization bodies and other +institutions or corporations that knowingly perform substantial and +systematic deceptive acts and practices, fraud, theft, and damaging of the +value of the people of this planet without their knowing, willing and +intentional consent. +The titles, ownership, and rights of these institutions and all their assets +are now duly secured and held in trust for the free people of this planet. +People of the planet, on every country, may have a financial interest in +the assets of these former principals, agents, and beneficiaries of the +foreclosed institutions and corporations. +IJG asserts what is: that each man, woman, and child has unalienable value +and rights granted and deposited in them by the Creator and not any one of +the people is subordinate to any artificial principality, corporate fiction +or the special interest of another without their appropriate knowing, +willing and intentional consent made by contract or accommodation agreement. +IJG expresses that which already was. +The people have already determined and demanded that public administration +entities, national governments, and their supporting judicial systems must +be fully transparent, accountable, and liable. +IJG has secured the value for all concerned free people of the planet. + +A partial list of foreclosed institutions and corporations ("Hall of Shame") +is currently prepared and will be published later. + + +TO DO +===== + +Version 9 is the second release of a new generation JPEG standard +to overcome the limitations of the original JPEG specification, +and is the first true source reference JPEG codec. +More features are being prepared for coming releases... + +Please send bug reports, offers of help, etc. to jpeg-info@jpegclub.org. diff --git a/libjpeg/bin/jpeg.lib b/libjpeg/bin/jpeg.lib new file mode 100644 index 0000000..ddc592e Binary files /dev/null and b/libjpeg/bin/jpeg.lib differ diff --git a/libjpeg/include/jconfig.h b/libjpeg/include/jconfig.h new file mode 100644 index 0000000..9b71ed2 --- /dev/null +++ b/libjpeg/include/jconfig.h @@ -0,0 +1,52 @@ +/* jconfig.vc --- jconfig.h for Microsoft Visual C++ on Windows 9x or NT. */ +/* This file also works for Borland C++ 32-bit (bcc32) on Windows 9x or NT. */ +/* see jconfig.txt for explanations */ + +#define HAVE_PROTOTYPES +#define HAVE_UNSIGNED_CHAR +#define HAVE_UNSIGNED_SHORT +/* #define void char */ +/* #define const */ +#undef CHAR_IS_UNSIGNED +#define HAVE_STDDEF_H +#define HAVE_STDLIB_H +#undef NEED_BSD_STRINGS +#undef NEED_SYS_TYPES_H +#undef NEED_FAR_POINTERS /* we presume a 32-bit flat memory model */ +#undef NEED_SHORT_EXTERNAL_NAMES +#undef INCOMPLETE_TYPES_BROKEN + +/* Define "boolean" as unsigned char, not enum, per Windows custom */ +#ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */ +typedef unsigned char boolean; +#endif +#ifndef FALSE /* in case these macros already exist */ +#define FALSE 0 /* values of boolean */ +#endif +#ifndef TRUE +#define TRUE 1 +#endif +#define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */ + + +#ifdef JPEG_INTERNALS + +#undef RIGHT_SHIFT_IS_UNSIGNED + +#endif /* JPEG_INTERNALS */ + +#ifdef JPEG_CJPEG_DJPEG + +#define BMP_SUPPORTED /* BMP image file format */ +#define GIF_SUPPORTED /* GIF image file format */ +#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ +#undef RLE_SUPPORTED /* Utah RLE image file format */ +#define TARGA_SUPPORTED /* Targa image file format */ + +#define TWO_FILE_COMMANDLINE /* optional */ +#define USE_SETMODE /* Microsoft has setmode() */ +#undef NEED_SIGNAL_CATCHER +#undef DONT_USE_B_MODE +#undef PROGRESS_REPORT /* optional */ + +#endif /* JPEG_CJPEG_DJPEG */ diff --git a/libjpeg/include/jmorecfg.h b/libjpeg/include/jmorecfg.h new file mode 100644 index 0000000..7407ac7 --- /dev/null +++ b/libjpeg/include/jmorecfg.h @@ -0,0 +1,446 @@ +/* + * jmorecfg.h + * + * Copyright (C) 1991-1997, Thomas G. Lane. + * Modified 1997-2013 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains additional configuration options that customize the + * JPEG software for special applications or support machine-dependent + * optimizations. Most users will not need to touch this file. + */ + + +/* + * Define BITS_IN_JSAMPLE as either + * 8 for 8-bit sample values (the usual setting) + * 9 for 9-bit sample values + * 10 for 10-bit sample values + * 11 for 11-bit sample values + * 12 for 12-bit sample values + * Only 8, 9, 10, 11, and 12 bits sample data precision are supported for + * full-feature DCT processing. Further depths up to 16-bit may be added + * later for the lossless modes of operation. + * Run-time selection and conversion of data precision will be added later + * and are currently not supported, sorry. + * Exception: The transcoding part (jpegtran) supports all settings in a + * single instance, since it operates on the level of DCT coefficients and + * not sample values. The DCT coefficients are of the same type (16 bits) + * in all cases (see below). + */ + +#define BITS_IN_JSAMPLE 8 /* use 8, 9, 10, 11, or 12 */ + + +/* + * Maximum number of components (color channels) allowed in JPEG image. + * To meet the letter of the JPEG spec, set this to 255. However, darn + * few applications need more than 4 channels (maybe 5 for CMYK + alpha + * mask). We recommend 10 as a reasonable compromise; use 4 if you are + * really short on memory. (Each allowed component costs a hundred or so + * bytes of storage, whether actually used in an image or not.) + */ + +#define MAX_COMPONENTS 10 /* maximum number of image components */ + + +/* + * Basic data types. + * You may need to change these if you have a machine with unusual data + * type sizes; for example, "char" not 8 bits, "short" not 16 bits, + * or "long" not 32 bits. We don't care whether "int" is 16 or 32 bits, + * but it had better be at least 16. + */ + +/* Representation of a single sample (pixel element value). + * We frequently allocate large arrays of these, so it's important to keep + * them small. But if you have memory to burn and access to char or short + * arrays is very slow on your hardware, you might want to change these. + */ + +#if BITS_IN_JSAMPLE == 8 +/* JSAMPLE should be the smallest type that will hold the values 0..255. + * You can use a signed char by having GETJSAMPLE mask it with 0xFF. + */ + +#ifdef HAVE_UNSIGNED_CHAR + +typedef unsigned char JSAMPLE; +#define GETJSAMPLE(value) ((int) (value)) + +#else /* not HAVE_UNSIGNED_CHAR */ + +typedef char JSAMPLE; +#ifdef CHAR_IS_UNSIGNED +#define GETJSAMPLE(value) ((int) (value)) +#else +#define GETJSAMPLE(value) ((int) (value) & 0xFF) +#endif /* CHAR_IS_UNSIGNED */ + +#endif /* HAVE_UNSIGNED_CHAR */ + +#define MAXJSAMPLE 255 +#define CENTERJSAMPLE 128 + +#endif /* BITS_IN_JSAMPLE == 8 */ + + +#if BITS_IN_JSAMPLE == 9 +/* JSAMPLE should be the smallest type that will hold the values 0..511. + * On nearly all machines "short" will do nicely. + */ + +typedef short JSAMPLE; +#define GETJSAMPLE(value) ((int) (value)) + +#define MAXJSAMPLE 511 +#define CENTERJSAMPLE 256 + +#endif /* BITS_IN_JSAMPLE == 9 */ + + +#if BITS_IN_JSAMPLE == 10 +/* JSAMPLE should be the smallest type that will hold the values 0..1023. + * On nearly all machines "short" will do nicely. + */ + +typedef short JSAMPLE; +#define GETJSAMPLE(value) ((int) (value)) + +#define MAXJSAMPLE 1023 +#define CENTERJSAMPLE 512 + +#endif /* BITS_IN_JSAMPLE == 10 */ + + +#if BITS_IN_JSAMPLE == 11 +/* JSAMPLE should be the smallest type that will hold the values 0..2047. + * On nearly all machines "short" will do nicely. + */ + +typedef short JSAMPLE; +#define GETJSAMPLE(value) ((int) (value)) + +#define MAXJSAMPLE 2047 +#define CENTERJSAMPLE 1024 + +#endif /* BITS_IN_JSAMPLE == 11 */ + + +#if BITS_IN_JSAMPLE == 12 +/* JSAMPLE should be the smallest type that will hold the values 0..4095. + * On nearly all machines "short" will do nicely. + */ + +typedef short JSAMPLE; +#define GETJSAMPLE(value) ((int) (value)) + +#define MAXJSAMPLE 4095 +#define CENTERJSAMPLE 2048 + +#endif /* BITS_IN_JSAMPLE == 12 */ + + +/* Representation of a DCT frequency coefficient. + * This should be a signed value of at least 16 bits; "short" is usually OK. + * Again, we allocate large arrays of these, but you can change to int + * if you have memory to burn and "short" is really slow. + */ + +typedef short JCOEF; + + +/* Compressed datastreams are represented as arrays of JOCTET. + * These must be EXACTLY 8 bits wide, at least once they are written to + * external storage. Note that when using the stdio data source/destination + * managers, this is also the data type passed to fread/fwrite. + */ + +#ifdef HAVE_UNSIGNED_CHAR + +typedef unsigned char JOCTET; +#define GETJOCTET(value) (value) + +#else /* not HAVE_UNSIGNED_CHAR */ + +typedef char JOCTET; +#ifdef CHAR_IS_UNSIGNED +#define GETJOCTET(value) (value) +#else +#define GETJOCTET(value) ((value) & 0xFF) +#endif /* CHAR_IS_UNSIGNED */ + +#endif /* HAVE_UNSIGNED_CHAR */ + + +/* These typedefs are used for various table entries and so forth. + * They must be at least as wide as specified; but making them too big + * won't cost a huge amount of memory, so we don't provide special + * extraction code like we did for JSAMPLE. (In other words, these + * typedefs live at a different point on the speed/space tradeoff curve.) + */ + +/* UINT8 must hold at least the values 0..255. */ + +#ifdef HAVE_UNSIGNED_CHAR +typedef unsigned char UINT8; +#else /* not HAVE_UNSIGNED_CHAR */ +#ifdef CHAR_IS_UNSIGNED +typedef char UINT8; +#else /* not CHAR_IS_UNSIGNED */ +typedef short UINT8; +#endif /* CHAR_IS_UNSIGNED */ +#endif /* HAVE_UNSIGNED_CHAR */ + +/* UINT16 must hold at least the values 0..65535. */ + +#ifdef HAVE_UNSIGNED_SHORT +typedef unsigned short UINT16; +#else /* not HAVE_UNSIGNED_SHORT */ +typedef unsigned int UINT16; +#endif /* HAVE_UNSIGNED_SHORT */ + +/* INT16 must hold at least the values -32768..32767. */ + +#ifndef XMD_H /* X11/xmd.h correctly defines INT16 */ +typedef short INT16; +#endif + +/* INT32 must hold at least signed 32-bit values. */ + +#ifndef XMD_H /* X11/xmd.h correctly defines INT32 */ +#ifndef _BASETSD_H_ /* Microsoft defines it in basetsd.h */ +#ifndef _BASETSD_H /* MinGW is slightly different */ +#ifndef QGLOBAL_H /* Qt defines it in qglobal.h */ +typedef long INT32; +#endif +#endif +#endif +#endif + +/* Datatype used for image dimensions. The JPEG standard only supports + * images up to 64K*64K due to 16-bit fields in SOF markers. Therefore + * "unsigned int" is sufficient on all machines. However, if you need to + * handle larger images and you don't mind deviating from the spec, you + * can change this datatype. + */ + +typedef unsigned int JDIMENSION; + +#define JPEG_MAX_DIMENSION 65500L /* a tad under 64K to prevent overflows */ + + +/* These macros are used in all function definitions and extern declarations. + * You could modify them if you need to change function linkage conventions; + * in particular, you'll need to do that to make the library a Windows DLL. + * Another application is to make all functions global for use with debuggers + * or code profilers that require it. + */ + +/* a function called through method pointers: */ +#define METHODDEF(type) static type +/* a function used only in its module: */ +#define LOCAL(type) static type +/* a function referenced thru EXTERNs: */ +#define GLOBAL(type) type +/* a reference to a GLOBAL function: */ +#define EXTERN(type) extern type + + +/* This macro is used to declare a "method", that is, a function pointer. + * We want to supply prototype parameters if the compiler can cope. + * Note that the arglist parameter must be parenthesized! + * Again, you can customize this if you need special linkage keywords. + */ + +#ifdef HAVE_PROTOTYPES +#define JMETHOD(type,methodname,arglist) type (*methodname) arglist +#else +#define JMETHOD(type,methodname,arglist) type (*methodname) () +#endif + + +/* The noreturn type identifier is used to declare functions + * which cannot return. + * Compilers can thus create more optimized code and perform + * better checks for warnings and errors. + * Static analyzer tools can make improved inferences about + * execution paths and are prevented from giving false alerts. + * + * Unfortunately, the proposed specifications of corresponding + * extensions in the Dec 2011 ISO C standard revision (C11), + * GCC, MSVC, etc. are not viable. + * Thus we introduce a user defined type to declare noreturn + * functions at least for clarity. A proper compiler would + * have a suitable noreturn type to match in place of void. + */ + +#ifndef HAVE_NORETURN_T +typedef void noreturn_t; +#endif + + +/* Here is the pseudo-keyword for declaring pointers that must be "far" + * on 80x86 machines. Most of the specialized coding for 80x86 is handled + * by just saying "FAR *" where such a pointer is needed. In a few places + * explicit coding is needed; see uses of the NEED_FAR_POINTERS symbol. + */ + +#ifndef FAR +#ifdef NEED_FAR_POINTERS +#define FAR far +#else +#define FAR +#endif +#endif + + +/* + * On a few systems, type boolean and/or its values FALSE, TRUE may appear + * in standard header files. Or you may have conflicts with application- + * specific header files that you want to include together with these files. + * Defining HAVE_BOOLEAN before including jpeglib.h should make it work. + */ + +#ifndef HAVE_BOOLEAN +#if defined FALSE || defined TRUE || defined QGLOBAL_H +/* Qt3 defines FALSE and TRUE as "const" variables in qglobal.h */ +typedef int boolean; +#ifndef FALSE /* in case these macros already exist */ +#define FALSE 0 /* values of boolean */ +#endif +#ifndef TRUE +#define TRUE 1 +#endif +#else +typedef enum { FALSE = 0, TRUE = 1 } boolean; +#endif +#endif + + +/* + * The remaining options affect code selection within the JPEG library, + * but they don't need to be visible to most applications using the library. + * To minimize application namespace pollution, the symbols won't be + * defined unless JPEG_INTERNALS or JPEG_INTERNAL_OPTIONS has been defined. + */ + +#ifdef JPEG_INTERNALS +#define JPEG_INTERNAL_OPTIONS +#endif + +#ifdef JPEG_INTERNAL_OPTIONS + + +/* + * These defines indicate whether to include various optional functions. + * Undefining some of these symbols will produce a smaller but less capable + * library. Note that you can leave certain source files out of the + * compilation/linking process if you've #undef'd the corresponding symbols. + * (You may HAVE to do that if your compiler doesn't like null source files.) + */ + +/* Capability options common to encoder and decoder: */ + +#define DCT_ISLOW_SUPPORTED /* slow but accurate integer algorithm */ +#define DCT_IFAST_SUPPORTED /* faster, less accurate integer method */ +#define DCT_FLOAT_SUPPORTED /* floating-point: accurate, fast on fast HW */ + +/* Encoder capability options: */ + +#define C_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */ +#define C_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */ +#define C_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/ +#define DCT_SCALING_SUPPORTED /* Input rescaling via DCT? (Requires DCT_ISLOW)*/ +#define ENTROPY_OPT_SUPPORTED /* Optimization of entropy coding parms? */ +/* Note: if you selected more than 8-bit data precision, it is dangerous to + * turn off ENTROPY_OPT_SUPPORTED. The standard Huffman tables are only + * good for 8-bit precision, so arithmetic coding is recommended for higher + * precision. The Huffman encoder normally uses entropy optimization to + * compute usable tables for higher precision. Otherwise, you'll have to + * supply different default Huffman tables. + * The exact same statements apply for progressive JPEG: the default tables + * don't work for progressive mode. (This may get fixed, however.) + */ +#define INPUT_SMOOTHING_SUPPORTED /* Input image smoothing option? */ + +/* Decoder capability options: */ + +#define D_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */ +#define D_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */ +#define D_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/ +#define IDCT_SCALING_SUPPORTED /* Output rescaling via IDCT? (Requires DCT_ISLOW)*/ +#define SAVE_MARKERS_SUPPORTED /* jpeg_save_markers() needed? */ +#define BLOCK_SMOOTHING_SUPPORTED /* Block smoothing? (Progressive only) */ +#undef UPSAMPLE_SCALING_SUPPORTED /* Output rescaling at upsample stage? */ +#define UPSAMPLE_MERGING_SUPPORTED /* Fast path for sloppy upsampling? */ +#define QUANT_1PASS_SUPPORTED /* 1-pass color quantization? */ +#define QUANT_2PASS_SUPPORTED /* 2-pass color quantization? */ + +/* more capability options later, no doubt */ + + +/* + * Ordering of RGB data in scanlines passed to or from the application. + * If your application wants to deal with data in the order B,G,R, just + * change these macros. You can also deal with formats such as R,G,B,X + * (one extra byte per pixel) by changing RGB_PIXELSIZE. Note that changing + * the offsets will also change the order in which colormap data is organized. + * RESTRICTIONS: + * 1. The sample applications cjpeg,djpeg do NOT support modified RGB formats. + * 2. The color quantizer modules will not behave desirably if RGB_PIXELSIZE + * is not 3 (they don't understand about dummy color components!). So you + * can't use color quantization if you change that value. + */ + +#define RGB_RED 0 /* Offset of Red in an RGB scanline element */ +#define RGB_GREEN 1 /* Offset of Green */ +#define RGB_BLUE 2 /* Offset of Blue */ +#define RGB_PIXELSIZE 3 /* JSAMPLEs per RGB scanline element */ + + +/* Definitions for speed-related optimizations. */ + + +/* If your compiler supports inline functions, define INLINE + * as the inline keyword; otherwise define it as empty. + */ + +#ifndef INLINE +#ifdef __GNUC__ /* for instance, GNU C knows about inline */ +#define INLINE __inline__ +#endif +#ifndef INLINE +#define INLINE /* default is to define it as empty */ +#endif +#endif + + +/* On some machines (notably 68000 series) "int" is 32 bits, but multiplying + * two 16-bit shorts is faster than multiplying two ints. Define MULTIPLIER + * as short on such a machine. MULTIPLIER must be at least 16 bits wide. + */ + +#ifndef MULTIPLIER +#define MULTIPLIER int /* type for fastest integer multiply */ +#endif + + +/* FAST_FLOAT should be either float or double, whichever is done faster + * by your compiler. (Note that this type is only used in the floating point + * DCT routines, so it only matters if you've defined DCT_FLOAT_SUPPORTED.) + * Typically, float is faster in ANSI C compilers, while double is faster in + * pre-ANSI compilers (because they insist on converting to double anyway). + * The code below therefore chooses float if we have ANSI-style prototypes. + */ + +#ifndef FAST_FLOAT +#ifdef HAVE_PROTOTYPES +#define FAST_FLOAT float +#else +#define FAST_FLOAT double +#endif +#endif + +#endif /* JPEG_INTERNAL_OPTIONS */ diff --git a/libjpeg/include/jpeglib.h b/libjpeg/include/jpeglib.h new file mode 100644 index 0000000..4073bc5 --- /dev/null +++ b/libjpeg/include/jpeglib.h @@ -0,0 +1,1180 @@ +/* + * jpeglib.h + * + * Copyright (C) 1991-1998, Thomas G. Lane. + * Modified 2002-2017 by Guido Vollbeding. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file defines the application interface for the JPEG library. + * Most applications using the library need only include this file, + * and perhaps jerror.h if they want to know the exact error codes. + */ + +#ifndef JPEGLIB_H +#define JPEGLIB_H + +/* + * First we include the configuration files that record how this + * installation of the JPEG library is set up. jconfig.h can be + * generated automatically for many systems. jmorecfg.h contains + * manual configuration options that most people need not worry about. + */ + +#ifndef JCONFIG_INCLUDED /* in case jinclude.h already did */ +#include "jconfig.h" /* widely used configuration options */ +#endif +#include "jmorecfg.h" /* seldom changed options */ + + +#ifdef __cplusplus +#ifndef DONT_USE_EXTERN_C +extern "C" { +#endif +#endif + +/* Version IDs for the JPEG library. + * Might be useful for tests like "#if JPEG_LIB_VERSION >= 90". + */ + +#define JPEG_LIB_VERSION 90 /* Compatibility version 9.0 */ +#define JPEG_LIB_VERSION_MAJOR 9 +#define JPEG_LIB_VERSION_MINOR 3 + + +/* Various constants determining the sizes of things. + * All of these are specified by the JPEG standard, + * so don't change them if you want to be compatible. + */ + +#define DCTSIZE 8 /* The basic DCT block is 8x8 coefficients */ +#define DCTSIZE2 64 /* DCTSIZE squared; # of elements in a block */ +#define NUM_QUANT_TBLS 4 /* Quantization tables are numbered 0..3 */ +#define NUM_HUFF_TBLS 4 /* Huffman tables are numbered 0..3 */ +#define NUM_ARITH_TBLS 16 /* Arith-coding tables are numbered 0..15 */ +#define MAX_COMPS_IN_SCAN 4 /* JPEG limit on # of components in one scan */ +#define MAX_SAMP_FACTOR 4 /* JPEG limit on sampling factors */ +/* Unfortunately, some bozo at Adobe saw no reason to be bound by the standard; + * the PostScript DCT filter can emit files with many more than 10 blocks/MCU. + * If you happen to run across such a file, you can up D_MAX_BLOCKS_IN_MCU + * to handle it. We even let you do this from the jconfig.h file. However, + * we strongly discourage changing C_MAX_BLOCKS_IN_MCU; just because Adobe + * sometimes emits noncompliant files doesn't mean you should too. + */ +#define C_MAX_BLOCKS_IN_MCU 10 /* compressor's limit on blocks per MCU */ +#ifndef D_MAX_BLOCKS_IN_MCU +#define D_MAX_BLOCKS_IN_MCU 10 /* decompressor's limit on blocks per MCU */ +#endif + + +/* Data structures for images (arrays of samples and of DCT coefficients). + * On 80x86 machines, the image arrays are too big for near pointers, + * but the pointer arrays can fit in near memory. + */ + +typedef JSAMPLE FAR *JSAMPROW; /* ptr to one image row of pixel samples. */ +typedef JSAMPROW *JSAMPARRAY; /* ptr to some rows (a 2-D sample array) */ +typedef JSAMPARRAY *JSAMPIMAGE; /* a 3-D sample array: top index is color */ + +typedef JCOEF JBLOCK[DCTSIZE2]; /* one block of coefficients */ +typedef JBLOCK FAR *JBLOCKROW; /* pointer to one row of coefficient blocks */ +typedef JBLOCKROW *JBLOCKARRAY; /* a 2-D array of coefficient blocks */ +typedef JBLOCKARRAY *JBLOCKIMAGE; /* a 3-D array of coefficient blocks */ + +typedef JCOEF FAR *JCOEFPTR; /* useful in a couple of places */ + + +/* Types for JPEG compression parameters and working tables. */ + + +/* DCT coefficient quantization tables. */ + +typedef struct { + /* This array gives the coefficient quantizers in natural array order + * (not the zigzag order in which they are stored in a JPEG DQT marker). + * CAUTION: IJG versions prior to v6a kept this array in zigzag order. + */ + UINT16 quantval[DCTSIZE2]; /* quantization step for each coefficient */ + /* This field is used only during compression. It's initialized FALSE when + * the table is created, and set TRUE when it's been output to the file. + * You could suppress output of a table by setting this to TRUE. + * (See jpeg_suppress_tables for an example.) + */ + boolean sent_table; /* TRUE when table has been output */ +} JQUANT_TBL; + + +/* Huffman coding tables. */ + +typedef struct { + /* These two fields directly represent the contents of a JPEG DHT marker */ + UINT8 bits[17]; /* bits[k] = # of symbols with codes of */ + /* length k bits; bits[0] is unused */ + UINT8 huffval[256]; /* The symbols, in order of incr code length */ + /* This field is used only during compression. It's initialized FALSE when + * the table is created, and set TRUE when it's been output to the file. + * You could suppress output of a table by setting this to TRUE. + * (See jpeg_suppress_tables for an example.) + */ + boolean sent_table; /* TRUE when table has been output */ +} JHUFF_TBL; + + +/* Basic info about one component (color channel). */ + +typedef struct { + /* These values are fixed over the whole image. */ + /* For compression, they must be supplied by parameter setup; */ + /* for decompression, they are read from the SOF marker. */ + int component_id; /* identifier for this component (0..255) */ + int component_index; /* its index in SOF or cinfo->comp_info[] */ + int h_samp_factor; /* horizontal sampling factor (1..4) */ + int v_samp_factor; /* vertical sampling factor (1..4) */ + int quant_tbl_no; /* quantization table selector (0..3) */ + /* These values may vary between scans. */ + /* For compression, they must be supplied by parameter setup; */ + /* for decompression, they are read from the SOS marker. */ + /* The decompressor output side may not use these variables. */ + int dc_tbl_no; /* DC entropy table selector (0..3) */ + int ac_tbl_no; /* AC entropy table selector (0..3) */ + + /* Remaining fields should be treated as private by applications. */ + + /* These values are computed during compression or decompression startup: */ + /* Component's size in DCT blocks. + * Any dummy blocks added to complete an MCU are not counted; therefore + * these values do not depend on whether a scan is interleaved or not. + */ + JDIMENSION width_in_blocks; + JDIMENSION height_in_blocks; + /* Size of a DCT block in samples, + * reflecting any scaling we choose to apply during the DCT step. + * Values from 1 to 16 are supported. + * Note that different components may receive different DCT scalings. + */ + int DCT_h_scaled_size; + int DCT_v_scaled_size; + /* The downsampled dimensions are the component's actual, unpadded number + * of samples at the main buffer (preprocessing/compression interface); + * DCT scaling is included, so + * downsampled_width = + * ceil(image_width * Hi/Hmax * DCT_h_scaled_size/block_size) + * and similarly for height. + */ + JDIMENSION downsampled_width; /* actual width in samples */ + JDIMENSION downsampled_height; /* actual height in samples */ + /* For decompression, in cases where some of the components will be + * ignored (eg grayscale output from YCbCr image), we can skip most + * computations for the unused components. + * For compression, some of the components will need further quantization + * scale by factor of 2 after DCT (eg BG_YCC output from normal RGB input). + * The field is first set TRUE for decompression, FALSE for compression + * in initial_setup, and then adapted in color conversion setup. + */ + boolean component_needed; + + /* These values are computed before starting a scan of the component. */ + /* The decompressor output side may not use these variables. */ + int MCU_width; /* number of blocks per MCU, horizontally */ + int MCU_height; /* number of blocks per MCU, vertically */ + int MCU_blocks; /* MCU_width * MCU_height */ + int MCU_sample_width; /* MCU width in samples: MCU_width * DCT_h_scaled_size */ + int last_col_width; /* # of non-dummy blocks across in last MCU */ + int last_row_height; /* # of non-dummy blocks down in last MCU */ + + /* Saved quantization table for component; NULL if none yet saved. + * See jdinput.c comments about the need for this information. + * This field is currently used only for decompression. + */ + JQUANT_TBL * quant_table; + + /* Private per-component storage for DCT or IDCT subsystem. */ + void * dct_table; +} jpeg_component_info; + + +/* The script for encoding a multiple-scan file is an array of these: */ + +typedef struct { + int comps_in_scan; /* number of components encoded in this scan */ + int component_index[MAX_COMPS_IN_SCAN]; /* their SOF/comp_info[] indexes */ + int Ss, Se; /* progressive JPEG spectral selection parms */ + int Ah, Al; /* progressive JPEG successive approx. parms */ +} jpeg_scan_info; + +/* The decompressor can save APPn and COM markers in a list of these: */ + +typedef struct jpeg_marker_struct FAR * jpeg_saved_marker_ptr; + +struct jpeg_marker_struct { + jpeg_saved_marker_ptr next; /* next in list, or NULL */ + UINT8 marker; /* marker code: JPEG_COM, or JPEG_APP0+n */ + unsigned int original_length; /* # bytes of data in the file */ + unsigned int data_length; /* # bytes of data saved at data[] */ + JOCTET FAR * data; /* the data contained in the marker */ + /* the marker length word is not counted in data_length or original_length */ +}; + +/* Known color spaces. */ + +typedef enum { + JCS_UNKNOWN, /* error/unspecified */ + JCS_GRAYSCALE, /* monochrome */ + JCS_RGB, /* red/green/blue, standard RGB (sRGB) */ + JCS_YCbCr, /* Y/Cb/Cr (also known as YUV), standard YCC */ + JCS_CMYK, /* C/M/Y/K */ + JCS_YCCK, /* Y/Cb/Cr/K */ + JCS_BG_RGB, /* big gamut red/green/blue, bg-sRGB */ + JCS_BG_YCC /* big gamut Y/Cb/Cr, bg-sYCC */ +} J_COLOR_SPACE; + +/* Supported color transforms. */ + +typedef enum { + JCT_NONE = 0, + JCT_SUBTRACT_GREEN = 1 +} J_COLOR_TRANSFORM; + +/* DCT/IDCT algorithm options. */ + +typedef enum { + JDCT_ISLOW, /* slow but accurate integer algorithm */ + JDCT_IFAST, /* faster, less accurate integer method */ + JDCT_FLOAT /* floating-point: accurate, fast on fast HW */ +} J_DCT_METHOD; + +#ifndef JDCT_DEFAULT /* may be overridden in jconfig.h */ +#define JDCT_DEFAULT JDCT_ISLOW +#endif +#ifndef JDCT_FASTEST /* may be overridden in jconfig.h */ +#define JDCT_FASTEST JDCT_IFAST +#endif + +/* Dithering options for decompression. */ + +typedef enum { + JDITHER_NONE, /* no dithering */ + JDITHER_ORDERED, /* simple ordered dither */ + JDITHER_FS /* Floyd-Steinberg error diffusion dither */ +} J_DITHER_MODE; + + +/* Common fields between JPEG compression and decompression master structs. */ + +#define jpeg_common_fields \ + struct jpeg_error_mgr * err; /* Error handler module */\ + struct jpeg_memory_mgr * mem; /* Memory manager module */\ + struct jpeg_progress_mgr * progress; /* Progress monitor, or NULL if none */\ + void * client_data; /* Available for use by application */\ + boolean is_decompressor; /* So common code can tell which is which */\ + int global_state /* For checking call sequence validity */ + +/* Routines that are to be used by both halves of the library are declared + * to receive a pointer to this structure. There are no actual instances of + * jpeg_common_struct, only of jpeg_compress_struct and jpeg_decompress_struct. + */ +struct jpeg_common_struct { + jpeg_common_fields; /* Fields common to both master struct types */ + /* Additional fields follow in an actual jpeg_compress_struct or + * jpeg_decompress_struct. All three structs must agree on these + * initial fields! (This would be a lot cleaner in C++.) + */ +}; + +typedef struct jpeg_common_struct * j_common_ptr; +typedef struct jpeg_compress_struct * j_compress_ptr; +typedef struct jpeg_decompress_struct * j_decompress_ptr; + + +/* Master record for a compression instance */ + +struct jpeg_compress_struct { + jpeg_common_fields; /* Fields shared with jpeg_decompress_struct */ + + /* Destination for compressed data */ + struct jpeg_destination_mgr * dest; + + /* Description of source image --- these fields must be filled in by + * outer application before starting compression. in_color_space must + * be correct before you can even call jpeg_set_defaults(). + */ + + JDIMENSION image_width; /* input image width */ + JDIMENSION image_height; /* input image height */ + int input_components; /* # of color components in input image */ + J_COLOR_SPACE in_color_space; /* colorspace of input image */ + + double input_gamma; /* image gamma of input image */ + + /* Compression parameters --- these fields must be set before calling + * jpeg_start_compress(). We recommend calling jpeg_set_defaults() to + * initialize everything to reasonable defaults, then changing anything + * the application specifically wants to change. That way you won't get + * burnt when new parameters are added. Also note that there are several + * helper routines to simplify changing parameters. + */ + + unsigned int scale_num, scale_denom; /* fraction by which to scale image */ + + JDIMENSION jpeg_width; /* scaled JPEG image width */ + JDIMENSION jpeg_height; /* scaled JPEG image height */ + /* Dimensions of actual JPEG image that will be written to file, + * derived from input dimensions by scaling factors above. + * These fields are computed by jpeg_start_compress(). + * You can also use jpeg_calc_jpeg_dimensions() to determine these values + * in advance of calling jpeg_start_compress(). + */ + + int data_precision; /* bits of precision in image data */ + + int num_components; /* # of color components in JPEG image */ + J_COLOR_SPACE jpeg_color_space; /* colorspace of JPEG image */ + + jpeg_component_info * comp_info; + /* comp_info[i] describes component that appears i'th in SOF */ + + JQUANT_TBL * quant_tbl_ptrs[NUM_QUANT_TBLS]; + int q_scale_factor[NUM_QUANT_TBLS]; + /* ptrs to coefficient quantization tables, or NULL if not defined, + * and corresponding scale factors (percentage, initialized 100). + */ + + JHUFF_TBL * dc_huff_tbl_ptrs[NUM_HUFF_TBLS]; + JHUFF_TBL * ac_huff_tbl_ptrs[NUM_HUFF_TBLS]; + /* ptrs to Huffman coding tables, or NULL if not defined */ + + UINT8 arith_dc_L[NUM_ARITH_TBLS]; /* L values for DC arith-coding tables */ + UINT8 arith_dc_U[NUM_ARITH_TBLS]; /* U values for DC arith-coding tables */ + UINT8 arith_ac_K[NUM_ARITH_TBLS]; /* Kx values for AC arith-coding tables */ + + int num_scans; /* # of entries in scan_info array */ + const jpeg_scan_info * scan_info; /* script for multi-scan file, or NULL */ + /* The default value of scan_info is NULL, which causes a single-scan + * sequential JPEG file to be emitted. To create a multi-scan file, + * set num_scans and scan_info to point to an array of scan definitions. + */ + + boolean raw_data_in; /* TRUE=caller supplies downsampled data */ + boolean arith_code; /* TRUE=arithmetic coding, FALSE=Huffman */ + boolean optimize_coding; /* TRUE=optimize entropy encoding parms */ + boolean CCIR601_sampling; /* TRUE=first samples are cosited */ + boolean do_fancy_downsampling; /* TRUE=apply fancy downsampling */ + int smoothing_factor; /* 1..100, or 0 for no input smoothing */ + J_DCT_METHOD dct_method; /* DCT algorithm selector */ + + /* The restart interval can be specified in absolute MCUs by setting + * restart_interval, or in MCU rows by setting restart_in_rows + * (in which case the correct restart_interval will be figured + * for each scan). + */ + unsigned int restart_interval; /* MCUs per restart, or 0 for no restart */ + int restart_in_rows; /* if > 0, MCU rows per restart interval */ + + /* Parameters controlling emission of special markers. */ + + boolean write_JFIF_header; /* should a JFIF marker be written? */ + UINT8 JFIF_major_version; /* What to write for the JFIF version number */ + UINT8 JFIF_minor_version; + /* These three values are not used by the JPEG code, merely copied */ + /* into the JFIF APP0 marker. density_unit can be 0 for unknown, */ + /* 1 for dots/inch, or 2 for dots/cm. Note that the pixel aspect */ + /* ratio is defined by X_density/Y_density even when density_unit=0. */ + UINT8 density_unit; /* JFIF code for pixel size units */ + UINT16 X_density; /* Horizontal pixel density */ + UINT16 Y_density; /* Vertical pixel density */ + boolean write_Adobe_marker; /* should an Adobe marker be written? */ + + J_COLOR_TRANSFORM color_transform; + /* Color transform identifier, writes LSE marker if nonzero */ + + /* State variable: index of next scanline to be written to + * jpeg_write_scanlines(). Application may use this to control its + * processing loop, e.g., "while (next_scanline < image_height)". + */ + + JDIMENSION next_scanline; /* 0 .. image_height-1 */ + + /* Remaining fields are known throughout compressor, but generally + * should not be touched by a surrounding application. + */ + + /* + * These fields are computed during compression startup + */ + boolean progressive_mode; /* TRUE if scan script uses progressive mode */ + int max_h_samp_factor; /* largest h_samp_factor */ + int max_v_samp_factor; /* largest v_samp_factor */ + + int min_DCT_h_scaled_size; /* smallest DCT_h_scaled_size of any component */ + int min_DCT_v_scaled_size; /* smallest DCT_v_scaled_size of any component */ + + JDIMENSION total_iMCU_rows; /* # of iMCU rows to be input to coef ctlr */ + /* The coefficient controller receives data in units of MCU rows as defined + * for fully interleaved scans (whether the JPEG file is interleaved or not). + * There are v_samp_factor * DCT_v_scaled_size sample rows of each component + * in an "iMCU" (interleaved MCU) row. + */ + + /* + * These fields are valid during any one scan. + * They describe the components and MCUs actually appearing in the scan. + */ + int comps_in_scan; /* # of JPEG components in this scan */ + jpeg_component_info * cur_comp_info[MAX_COMPS_IN_SCAN]; + /* *cur_comp_info[i] describes component that appears i'th in SOS */ + + JDIMENSION MCUs_per_row; /* # of MCUs across the image */ + JDIMENSION MCU_rows_in_scan; /* # of MCU rows in the image */ + + int blocks_in_MCU; /* # of DCT blocks per MCU */ + int MCU_membership[C_MAX_BLOCKS_IN_MCU]; + /* MCU_membership[i] is index in cur_comp_info of component owning */ + /* i'th block in an MCU */ + + int Ss, Se, Ah, Al; /* progressive JPEG parameters for scan */ + + int block_size; /* the basic DCT block size: 1..16 */ + const int * natural_order; /* natural-order position array */ + int lim_Se; /* min( Se, DCTSIZE2-1 ) */ + + /* + * Links to compression subobjects (methods and private variables of modules) + */ + struct jpeg_comp_master * master; + struct jpeg_c_main_controller * main; + struct jpeg_c_prep_controller * prep; + struct jpeg_c_coef_controller * coef; + struct jpeg_marker_writer * marker; + struct jpeg_color_converter * cconvert; + struct jpeg_downsampler * downsample; + struct jpeg_forward_dct * fdct; + struct jpeg_entropy_encoder * entropy; + jpeg_scan_info * script_space; /* workspace for jpeg_simple_progression */ + int script_space_size; +}; + + +/* Master record for a decompression instance */ + +struct jpeg_decompress_struct { + jpeg_common_fields; /* Fields shared with jpeg_compress_struct */ + + /* Source of compressed data */ + struct jpeg_source_mgr * src; + + /* Basic description of image --- filled in by jpeg_read_header(). */ + /* Application may inspect these values to decide how to process image. */ + + JDIMENSION image_width; /* nominal image width (from SOF marker) */ + JDIMENSION image_height; /* nominal image height */ + int num_components; /* # of color components in JPEG image */ + J_COLOR_SPACE jpeg_color_space; /* colorspace of JPEG image */ + + /* Decompression processing parameters --- these fields must be set before + * calling jpeg_start_decompress(). Note that jpeg_read_header() initializes + * them to default values. + */ + + J_COLOR_SPACE out_color_space; /* colorspace for output */ + + unsigned int scale_num, scale_denom; /* fraction by which to scale image */ + + double output_gamma; /* image gamma wanted in output */ + + boolean buffered_image; /* TRUE=multiple output passes */ + boolean raw_data_out; /* TRUE=downsampled data wanted */ + + J_DCT_METHOD dct_method; /* IDCT algorithm selector */ + boolean do_fancy_upsampling; /* TRUE=apply fancy upsampling */ + boolean do_block_smoothing; /* TRUE=apply interblock smoothing */ + + boolean quantize_colors; /* TRUE=colormapped output wanted */ + /* the following are ignored if not quantize_colors: */ + J_DITHER_MODE dither_mode; /* type of color dithering to use */ + boolean two_pass_quantize; /* TRUE=use two-pass color quantization */ + int desired_number_of_colors; /* max # colors to use in created colormap */ + /* these are significant only in buffered-image mode: */ + boolean enable_1pass_quant; /* enable future use of 1-pass quantizer */ + boolean enable_external_quant;/* enable future use of external colormap */ + boolean enable_2pass_quant; /* enable future use of 2-pass quantizer */ + + /* Description of actual output image that will be returned to application. + * These fields are computed by jpeg_start_decompress(). + * You can also use jpeg_calc_output_dimensions() to determine these values + * in advance of calling jpeg_start_decompress(). + */ + + JDIMENSION output_width; /* scaled image width */ + JDIMENSION output_height; /* scaled image height */ + int out_color_components; /* # of color components in out_color_space */ + int output_components; /* # of color components returned */ + /* output_components is 1 (a colormap index) when quantizing colors; + * otherwise it equals out_color_components. + */ + int rec_outbuf_height; /* min recommended height of scanline buffer */ + /* If the buffer passed to jpeg_read_scanlines() is less than this many rows + * high, space and time will be wasted due to unnecessary data copying. + * Usually rec_outbuf_height will be 1 or 2, at most 4. + */ + + /* When quantizing colors, the output colormap is described by these fields. + * The application can supply a colormap by setting colormap non-NULL before + * calling jpeg_start_decompress; otherwise a colormap is created during + * jpeg_start_decompress or jpeg_start_output. + * The map has out_color_components rows and actual_number_of_colors columns. + */ + int actual_number_of_colors; /* number of entries in use */ + JSAMPARRAY colormap; /* The color map as a 2-D pixel array */ + + /* State variables: these variables indicate the progress of decompression. + * The application may examine these but must not modify them. + */ + + /* Row index of next scanline to be read from jpeg_read_scanlines(). + * Application may use this to control its processing loop, e.g., + * "while (output_scanline < output_height)". + */ + JDIMENSION output_scanline; /* 0 .. output_height-1 */ + + /* Current input scan number and number of iMCU rows completed in scan. + * These indicate the progress of the decompressor input side. + */ + int input_scan_number; /* Number of SOS markers seen so far */ + JDIMENSION input_iMCU_row; /* Number of iMCU rows completed */ + + /* The "output scan number" is the notional scan being displayed by the + * output side. The decompressor will not allow output scan/row number + * to get ahead of input scan/row, but it can fall arbitrarily far behind. + */ + int output_scan_number; /* Nominal scan number being displayed */ + JDIMENSION output_iMCU_row; /* Number of iMCU rows read */ + + /* Current progression status. coef_bits[c][i] indicates the precision + * with which component c's DCT coefficient i (in zigzag order) is known. + * It is -1 when no data has yet been received, otherwise it is the point + * transform (shift) value for the most recent scan of the coefficient + * (thus, 0 at completion of the progression). + * This pointer is NULL when reading a non-progressive file. + */ + int (*coef_bits)[DCTSIZE2]; /* -1 or current Al value for each coef */ + + /* Internal JPEG parameters --- the application usually need not look at + * these fields. Note that the decompressor output side may not use + * any parameters that can change between scans. + */ + + /* Quantization and Huffman tables are carried forward across input + * datastreams when processing abbreviated JPEG datastreams. + */ + + JQUANT_TBL * quant_tbl_ptrs[NUM_QUANT_TBLS]; + /* ptrs to coefficient quantization tables, or NULL if not defined */ + + JHUFF_TBL * dc_huff_tbl_ptrs[NUM_HUFF_TBLS]; + JHUFF_TBL * ac_huff_tbl_ptrs[NUM_HUFF_TBLS]; + /* ptrs to Huffman coding tables, or NULL if not defined */ + + /* These parameters are never carried across datastreams, since they + * are given in SOF/SOS markers or defined to be reset by SOI. + */ + + int data_precision; /* bits of precision in image data */ + + jpeg_component_info * comp_info; + /* comp_info[i] describes component that appears i'th in SOF */ + + boolean is_baseline; /* TRUE if Baseline SOF0 encountered */ + boolean progressive_mode; /* TRUE if SOFn specifies progressive mode */ + boolean arith_code; /* TRUE=arithmetic coding, FALSE=Huffman */ + + UINT8 arith_dc_L[NUM_ARITH_TBLS]; /* L values for DC arith-coding tables */ + UINT8 arith_dc_U[NUM_ARITH_TBLS]; /* U values for DC arith-coding tables */ + UINT8 arith_ac_K[NUM_ARITH_TBLS]; /* Kx values for AC arith-coding tables */ + + unsigned int restart_interval; /* MCUs per restart interval, or 0 for no restart */ + + /* These fields record data obtained from optional markers recognized by + * the JPEG library. + */ + boolean saw_JFIF_marker; /* TRUE iff a JFIF APP0 marker was found */ + /* Data copied from JFIF marker; only valid if saw_JFIF_marker is TRUE: */ + UINT8 JFIF_major_version; /* JFIF version number */ + UINT8 JFIF_minor_version; + UINT8 density_unit; /* JFIF code for pixel size units */ + UINT16 X_density; /* Horizontal pixel density */ + UINT16 Y_density; /* Vertical pixel density */ + boolean saw_Adobe_marker; /* TRUE iff an Adobe APP14 marker was found */ + UINT8 Adobe_transform; /* Color transform code from Adobe marker */ + + J_COLOR_TRANSFORM color_transform; + /* Color transform identifier derived from LSE marker, otherwise zero */ + + boolean CCIR601_sampling; /* TRUE=first samples are cosited */ + + /* Aside from the specific data retained from APPn markers known to the + * library, the uninterpreted contents of any or all APPn and COM markers + * can be saved in a list for examination by the application. + */ + jpeg_saved_marker_ptr marker_list; /* Head of list of saved markers */ + + /* Remaining fields are known throughout decompressor, but generally + * should not be touched by a surrounding application. + */ + + /* + * These fields are computed during decompression startup + */ + int max_h_samp_factor; /* largest h_samp_factor */ + int max_v_samp_factor; /* largest v_samp_factor */ + + int min_DCT_h_scaled_size; /* smallest DCT_h_scaled_size of any component */ + int min_DCT_v_scaled_size; /* smallest DCT_v_scaled_size of any component */ + + JDIMENSION total_iMCU_rows; /* # of iMCU rows in image */ + /* The coefficient controller's input and output progress is measured in + * units of "iMCU" (interleaved MCU) rows. These are the same as MCU rows + * in fully interleaved JPEG scans, but are used whether the scan is + * interleaved or not. We define an iMCU row as v_samp_factor DCT block + * rows of each component. Therefore, the IDCT output contains + * v_samp_factor * DCT_v_scaled_size sample rows of a component per iMCU row. + */ + + JSAMPLE * sample_range_limit; /* table for fast range-limiting */ + + /* + * These fields are valid during any one scan. + * They describe the components and MCUs actually appearing in the scan. + * Note that the decompressor output side must not use these fields. + */ + int comps_in_scan; /* # of JPEG components in this scan */ + jpeg_component_info * cur_comp_info[MAX_COMPS_IN_SCAN]; + /* *cur_comp_info[i] describes component that appears i'th in SOS */ + + JDIMENSION MCUs_per_row; /* # of MCUs across the image */ + JDIMENSION MCU_rows_in_scan; /* # of MCU rows in the image */ + + int blocks_in_MCU; /* # of DCT blocks per MCU */ + int MCU_membership[D_MAX_BLOCKS_IN_MCU]; + /* MCU_membership[i] is index in cur_comp_info of component owning */ + /* i'th block in an MCU */ + + int Ss, Se, Ah, Al; /* progressive JPEG parameters for scan */ + + /* These fields are derived from Se of first SOS marker. + */ + int block_size; /* the basic DCT block size: 1..16 */ + const int * natural_order; /* natural-order position array for entropy decode */ + int lim_Se; /* min( Se, DCTSIZE2-1 ) for entropy decode */ + + /* This field is shared between entropy decoder and marker parser. + * It is either zero or the code of a JPEG marker that has been + * read from the data source, but has not yet been processed. + */ + int unread_marker; + + /* + * Links to decompression subobjects (methods, private variables of modules) + */ + struct jpeg_decomp_master * master; + struct jpeg_d_main_controller * main; + struct jpeg_d_coef_controller * coef; + struct jpeg_d_post_controller * post; + struct jpeg_input_controller * inputctl; + struct jpeg_marker_reader * marker; + struct jpeg_entropy_decoder * entropy; + struct jpeg_inverse_dct * idct; + struct jpeg_upsampler * upsample; + struct jpeg_color_deconverter * cconvert; + struct jpeg_color_quantizer * cquantize; +}; + + +/* "Object" declarations for JPEG modules that may be supplied or called + * directly by the surrounding application. + * As with all objects in the JPEG library, these structs only define the + * publicly visible methods and state variables of a module. Additional + * private fields may exist after the public ones. + */ + + +/* Error handler object */ + +struct jpeg_error_mgr { + /* Error exit handler: does not return to caller */ + JMETHOD(noreturn_t, error_exit, (j_common_ptr cinfo)); + /* Conditionally emit a trace or warning message */ + JMETHOD(void, emit_message, (j_common_ptr cinfo, int msg_level)); + /* Routine that actually outputs a trace or error message */ + JMETHOD(void, output_message, (j_common_ptr cinfo)); + /* Format a message string for the most recent JPEG error or message */ + JMETHOD(void, format_message, (j_common_ptr cinfo, char * buffer)); +#define JMSG_LENGTH_MAX 200 /* recommended size of format_message buffer */ + /* Reset error state variables at start of a new image */ + JMETHOD(void, reset_error_mgr, (j_common_ptr cinfo)); + + /* The message ID code and any parameters are saved here. + * A message can have one string parameter or up to 8 int parameters. + */ + int msg_code; +#define JMSG_STR_PARM_MAX 80 + union { + int i[8]; + char s[JMSG_STR_PARM_MAX]; + } msg_parm; + + /* Standard state variables for error facility */ + + int trace_level; /* max msg_level that will be displayed */ + + /* For recoverable corrupt-data errors, we emit a warning message, + * but keep going unless emit_message chooses to abort. emit_message + * should count warnings in num_warnings. The surrounding application + * can check for bad data by seeing if num_warnings is nonzero at the + * end of processing. + */ + long num_warnings; /* number of corrupt-data warnings */ + + /* These fields point to the table(s) of error message strings. + * An application can change the table pointer to switch to a different + * message list (typically, to change the language in which errors are + * reported). Some applications may wish to add additional error codes + * that will be handled by the JPEG library error mechanism; the second + * table pointer is used for this purpose. + * + * First table includes all errors generated by JPEG library itself. + * Error code 0 is reserved for a "no such error string" message. + */ + const char * const * jpeg_message_table; /* Library errors */ + int last_jpeg_message; /* Table contains strings 0..last_jpeg_message */ + /* Second table can be added by application (see cjpeg/djpeg for example). + * It contains strings numbered first_addon_message..last_addon_message. + */ + const char * const * addon_message_table; /* Non-library errors */ + int first_addon_message; /* code for first string in addon table */ + int last_addon_message; /* code for last string in addon table */ +}; + + +/* Progress monitor object */ + +struct jpeg_progress_mgr { + JMETHOD(void, progress_monitor, (j_common_ptr cinfo)); + + long pass_counter; /* work units completed in this pass */ + long pass_limit; /* total number of work units in this pass */ + int completed_passes; /* passes completed so far */ + int total_passes; /* total number of passes expected */ +}; + + +/* Data destination object for compression */ + +struct jpeg_destination_mgr { + JOCTET * next_output_byte; /* => next byte to write in buffer */ + size_t free_in_buffer; /* # of byte spaces remaining in buffer */ + + JMETHOD(void, init_destination, (j_compress_ptr cinfo)); + JMETHOD(boolean, empty_output_buffer, (j_compress_ptr cinfo)); + JMETHOD(void, term_destination, (j_compress_ptr cinfo)); +}; + + +/* Data source object for decompression */ + +struct jpeg_source_mgr { + const JOCTET * next_input_byte; /* => next byte to read from buffer */ + size_t bytes_in_buffer; /* # of bytes remaining in buffer */ + + JMETHOD(void, init_source, (j_decompress_ptr cinfo)); + JMETHOD(boolean, fill_input_buffer, (j_decompress_ptr cinfo)); + JMETHOD(void, skip_input_data, (j_decompress_ptr cinfo, long num_bytes)); + JMETHOD(boolean, resync_to_restart, (j_decompress_ptr cinfo, int desired)); + JMETHOD(void, term_source, (j_decompress_ptr cinfo)); +}; + + +/* Memory manager object. + * Allocates "small" objects (a few K total), "large" objects (tens of K), + * and "really big" objects (virtual arrays with backing store if needed). + * The memory manager does not allow individual objects to be freed; rather, + * each created object is assigned to a pool, and whole pools can be freed + * at once. This is faster and more convenient than remembering exactly what + * to free, especially where malloc()/free() are not too speedy. + * NB: alloc routines never return NULL. They exit to error_exit if not + * successful. + */ + +#define JPOOL_PERMANENT 0 /* lasts until master record is destroyed */ +#define JPOOL_IMAGE 1 /* lasts until done with image/datastream */ +#define JPOOL_NUMPOOLS 2 + +typedef struct jvirt_sarray_control * jvirt_sarray_ptr; +typedef struct jvirt_barray_control * jvirt_barray_ptr; + + +struct jpeg_memory_mgr { + /* Method pointers */ + JMETHOD(void *, alloc_small, (j_common_ptr cinfo, int pool_id, + size_t sizeofobject)); + JMETHOD(void FAR *, alloc_large, (j_common_ptr cinfo, int pool_id, + size_t sizeofobject)); + JMETHOD(JSAMPARRAY, alloc_sarray, (j_common_ptr cinfo, int pool_id, + JDIMENSION samplesperrow, + JDIMENSION numrows)); + JMETHOD(JBLOCKARRAY, alloc_barray, (j_common_ptr cinfo, int pool_id, + JDIMENSION blocksperrow, + JDIMENSION numrows)); + JMETHOD(jvirt_sarray_ptr, request_virt_sarray, (j_common_ptr cinfo, + int pool_id, + boolean pre_zero, + JDIMENSION samplesperrow, + JDIMENSION numrows, + JDIMENSION maxaccess)); + JMETHOD(jvirt_barray_ptr, request_virt_barray, (j_common_ptr cinfo, + int pool_id, + boolean pre_zero, + JDIMENSION blocksperrow, + JDIMENSION numrows, + JDIMENSION maxaccess)); + JMETHOD(void, realize_virt_arrays, (j_common_ptr cinfo)); + JMETHOD(JSAMPARRAY, access_virt_sarray, (j_common_ptr cinfo, + jvirt_sarray_ptr ptr, + JDIMENSION start_row, + JDIMENSION num_rows, + boolean writable)); + JMETHOD(JBLOCKARRAY, access_virt_barray, (j_common_ptr cinfo, + jvirt_barray_ptr ptr, + JDIMENSION start_row, + JDIMENSION num_rows, + boolean writable)); + JMETHOD(void, free_pool, (j_common_ptr cinfo, int pool_id)); + JMETHOD(void, self_destruct, (j_common_ptr cinfo)); + + /* Limit on memory allocation for this JPEG object. (Note that this is + * merely advisory, not a guaranteed maximum; it only affects the space + * used for virtual-array buffers.) May be changed by outer application + * after creating the JPEG object. + */ + long max_memory_to_use; + + /* Maximum allocation request accepted by alloc_large. */ + long max_alloc_chunk; +}; + + +/* Routine signature for application-supplied marker processing methods. + * Need not pass marker code since it is stored in cinfo->unread_marker. + */ +typedef JMETHOD(boolean, jpeg_marker_parser_method, (j_decompress_ptr cinfo)); + + +/* Declarations for routines called by application. + * The JPP macro hides prototype parameters from compilers that can't cope. + * Note JPP requires double parentheses. + */ + +#ifdef HAVE_PROTOTYPES +#define JPP(arglist) arglist +#else +#define JPP(arglist) () +#endif + + +/* Short forms of external names for systems with brain-damaged linkers. + * We shorten external names to be unique in the first six letters, which + * is good enough for all known systems. + * (If your compiler itself needs names to be unique in less than 15 + * characters, you are out of luck. Get a better compiler.) + */ + +#ifdef NEED_SHORT_EXTERNAL_NAMES +#define jpeg_std_error jStdError +#define jpeg_CreateCompress jCreaCompress +#define jpeg_CreateDecompress jCreaDecompress +#define jpeg_destroy_compress jDestCompress +#define jpeg_destroy_decompress jDestDecompress +#define jpeg_stdio_dest jStdDest +#define jpeg_stdio_src jStdSrc +#define jpeg_mem_dest jMemDest +#define jpeg_mem_src jMemSrc +#define jpeg_set_defaults jSetDefaults +#define jpeg_set_colorspace jSetColorspace +#define jpeg_default_colorspace jDefColorspace +#define jpeg_set_quality jSetQuality +#define jpeg_set_linear_quality jSetLQuality +#define jpeg_default_qtables jDefQTables +#define jpeg_add_quant_table jAddQuantTable +#define jpeg_quality_scaling jQualityScaling +#define jpeg_simple_progression jSimProgress +#define jpeg_suppress_tables jSuppressTables +#define jpeg_alloc_quant_table jAlcQTable +#define jpeg_alloc_huff_table jAlcHTable +#define jpeg_start_compress jStrtCompress +#define jpeg_write_scanlines jWrtScanlines +#define jpeg_finish_compress jFinCompress +#define jpeg_calc_jpeg_dimensions jCjpegDimensions +#define jpeg_write_raw_data jWrtRawData +#define jpeg_write_marker jWrtMarker +#define jpeg_write_m_header jWrtMHeader +#define jpeg_write_m_byte jWrtMByte +#define jpeg_write_tables jWrtTables +#define jpeg_read_header jReadHeader +#define jpeg_start_decompress jStrtDecompress +#define jpeg_read_scanlines jReadScanlines +#define jpeg_finish_decompress jFinDecompress +#define jpeg_read_raw_data jReadRawData +#define jpeg_has_multiple_scans jHasMultScn +#define jpeg_start_output jStrtOutput +#define jpeg_finish_output jFinOutput +#define jpeg_input_complete jInComplete +#define jpeg_new_colormap jNewCMap +#define jpeg_consume_input jConsumeInput +#define jpeg_core_output_dimensions jCoreDimensions +#define jpeg_calc_output_dimensions jCalcDimensions +#define jpeg_save_markers jSaveMarkers +#define jpeg_set_marker_processor jSetMarker +#define jpeg_read_coefficients jReadCoefs +#define jpeg_write_coefficients jWrtCoefs +#define jpeg_copy_critical_parameters jCopyCrit +#define jpeg_abort_compress jAbrtCompress +#define jpeg_abort_decompress jAbrtDecompress +#define jpeg_abort jAbort +#define jpeg_destroy jDestroy +#define jpeg_resync_to_restart jResyncRestart +#endif /* NEED_SHORT_EXTERNAL_NAMES */ + + +/* Default error-management setup */ +EXTERN(struct jpeg_error_mgr *) jpeg_std_error + JPP((struct jpeg_error_mgr * err)); + +/* Initialization of JPEG compression objects. + * jpeg_create_compress() and jpeg_create_decompress() are the exported + * names that applications should call. These expand to calls on + * jpeg_CreateCompress and jpeg_CreateDecompress with additional information + * passed for version mismatch checking. + * NB: you must set up the error-manager BEFORE calling jpeg_create_xxx. + */ +#define jpeg_create_compress(cinfo) \ + jpeg_CreateCompress((cinfo), JPEG_LIB_VERSION, \ + (size_t) sizeof(struct jpeg_compress_struct)) +#define jpeg_create_decompress(cinfo) \ + jpeg_CreateDecompress((cinfo), JPEG_LIB_VERSION, \ + (size_t) sizeof(struct jpeg_decompress_struct)) +EXTERN(void) jpeg_CreateCompress JPP((j_compress_ptr cinfo, + int version, size_t structsize)); +EXTERN(void) jpeg_CreateDecompress JPP((j_decompress_ptr cinfo, + int version, size_t structsize)); +/* Destruction of JPEG compression objects */ +EXTERN(void) jpeg_destroy_compress JPP((j_compress_ptr cinfo)); +EXTERN(void) jpeg_destroy_decompress JPP((j_decompress_ptr cinfo)); + +/* Standard data source and destination managers: stdio streams. */ +/* Caller is responsible for opening the file before and closing after. */ +EXTERN(void) jpeg_stdio_dest JPP((j_compress_ptr cinfo, FILE * outfile)); +EXTERN(void) jpeg_stdio_src JPP((j_decompress_ptr cinfo, FILE * infile)); + +/* Data source and destination managers: memory buffers. */ +EXTERN(void) jpeg_mem_dest JPP((j_compress_ptr cinfo, + unsigned char ** outbuffer, + unsigned long * outsize)); +EXTERN(void) jpeg_mem_src JPP((j_decompress_ptr cinfo, + const unsigned char * inbuffer, + unsigned long insize)); + +/* Default parameter setup for compression */ +EXTERN(void) jpeg_set_defaults JPP((j_compress_ptr cinfo)); +/* Compression parameter setup aids */ +EXTERN(void) jpeg_set_colorspace JPP((j_compress_ptr cinfo, + J_COLOR_SPACE colorspace)); +EXTERN(void) jpeg_default_colorspace JPP((j_compress_ptr cinfo)); +EXTERN(void) jpeg_set_quality JPP((j_compress_ptr cinfo, int quality, + boolean force_baseline)); +EXTERN(void) jpeg_set_linear_quality JPP((j_compress_ptr cinfo, + int scale_factor, + boolean force_baseline)); +EXTERN(void) jpeg_default_qtables JPP((j_compress_ptr cinfo, + boolean force_baseline)); +EXTERN(void) jpeg_add_quant_table JPP((j_compress_ptr cinfo, int which_tbl, + const unsigned int *basic_table, + int scale_factor, + boolean force_baseline)); +EXTERN(int) jpeg_quality_scaling JPP((int quality)); +EXTERN(void) jpeg_simple_progression JPP((j_compress_ptr cinfo)); +EXTERN(void) jpeg_suppress_tables JPP((j_compress_ptr cinfo, + boolean suppress)); +EXTERN(JQUANT_TBL *) jpeg_alloc_quant_table JPP((j_common_ptr cinfo)); +EXTERN(JHUFF_TBL *) jpeg_alloc_huff_table JPP((j_common_ptr cinfo)); + +/* Main entry points for compression */ +EXTERN(void) jpeg_start_compress JPP((j_compress_ptr cinfo, + boolean write_all_tables)); +EXTERN(JDIMENSION) jpeg_write_scanlines JPP((j_compress_ptr cinfo, + JSAMPARRAY scanlines, + JDIMENSION num_lines)); +EXTERN(void) jpeg_finish_compress JPP((j_compress_ptr cinfo)); + +/* Precalculate JPEG dimensions for current compression parameters. */ +EXTERN(void) jpeg_calc_jpeg_dimensions JPP((j_compress_ptr cinfo)); + +/* Replaces jpeg_write_scanlines when writing raw downsampled data. */ +EXTERN(JDIMENSION) jpeg_write_raw_data JPP((j_compress_ptr cinfo, + JSAMPIMAGE data, + JDIMENSION num_lines)); + +/* Write a special marker. See libjpeg.txt concerning safe usage. */ +EXTERN(void) jpeg_write_marker + JPP((j_compress_ptr cinfo, int marker, + const JOCTET * dataptr, unsigned int datalen)); +/* Same, but piecemeal. */ +EXTERN(void) jpeg_write_m_header + JPP((j_compress_ptr cinfo, int marker, unsigned int datalen)); +EXTERN(void) jpeg_write_m_byte + JPP((j_compress_ptr cinfo, int val)); + +/* Alternate compression function: just write an abbreviated table file */ +EXTERN(void) jpeg_write_tables JPP((j_compress_ptr cinfo)); + +/* Decompression startup: read start of JPEG datastream to see what's there */ +EXTERN(int) jpeg_read_header JPP((j_decompress_ptr cinfo, + boolean require_image)); +/* Return value is one of: */ +#define JPEG_SUSPENDED 0 /* Suspended due to lack of input data */ +#define JPEG_HEADER_OK 1 /* Found valid image datastream */ +#define JPEG_HEADER_TABLES_ONLY 2 /* Found valid table-specs-only datastream */ +/* If you pass require_image = TRUE (normal case), you need not check for + * a TABLES_ONLY return code; an abbreviated file will cause an error exit. + * JPEG_SUSPENDED is only possible if you use a data source module that can + * give a suspension return (the stdio source module doesn't). + */ + +/* Main entry points for decompression */ +EXTERN(boolean) jpeg_start_decompress JPP((j_decompress_ptr cinfo)); +EXTERN(JDIMENSION) jpeg_read_scanlines JPP((j_decompress_ptr cinfo, + JSAMPARRAY scanlines, + JDIMENSION max_lines)); +EXTERN(boolean) jpeg_finish_decompress JPP((j_decompress_ptr cinfo)); + +/* Replaces jpeg_read_scanlines when reading raw downsampled data. */ +EXTERN(JDIMENSION) jpeg_read_raw_data JPP((j_decompress_ptr cinfo, + JSAMPIMAGE data, + JDIMENSION max_lines)); + +/* Additional entry points for buffered-image mode. */ +EXTERN(boolean) jpeg_has_multiple_scans JPP((j_decompress_ptr cinfo)); +EXTERN(boolean) jpeg_start_output JPP((j_decompress_ptr cinfo, + int scan_number)); +EXTERN(boolean) jpeg_finish_output JPP((j_decompress_ptr cinfo)); +EXTERN(boolean) jpeg_input_complete JPP((j_decompress_ptr cinfo)); +EXTERN(void) jpeg_new_colormap JPP((j_decompress_ptr cinfo)); +EXTERN(int) jpeg_consume_input JPP((j_decompress_ptr cinfo)); +/* Return value is one of: */ +/* #define JPEG_SUSPENDED 0 Suspended due to lack of input data */ +#define JPEG_REACHED_SOS 1 /* Reached start of new scan */ +#define JPEG_REACHED_EOI 2 /* Reached end of image */ +#define JPEG_ROW_COMPLETED 3 /* Completed one iMCU row */ +#define JPEG_SCAN_COMPLETED 4 /* Completed last iMCU row of a scan */ + +/* Precalculate output dimensions for current decompression parameters. */ +EXTERN(void) jpeg_core_output_dimensions JPP((j_decompress_ptr cinfo)); +EXTERN(void) jpeg_calc_output_dimensions JPP((j_decompress_ptr cinfo)); + +/* Control saving of COM and APPn markers into marker_list. */ +EXTERN(void) jpeg_save_markers + JPP((j_decompress_ptr cinfo, int marker_code, + unsigned int length_limit)); + +/* Install a special processing method for COM or APPn markers. */ +EXTERN(void) jpeg_set_marker_processor + JPP((j_decompress_ptr cinfo, int marker_code, + jpeg_marker_parser_method routine)); + +/* Read or write raw DCT coefficients --- useful for lossless transcoding. */ +EXTERN(jvirt_barray_ptr *) jpeg_read_coefficients JPP((j_decompress_ptr cinfo)); +EXTERN(void) jpeg_write_coefficients JPP((j_compress_ptr cinfo, + jvirt_barray_ptr * coef_arrays)); +EXTERN(void) jpeg_copy_critical_parameters JPP((j_decompress_ptr srcinfo, + j_compress_ptr dstinfo)); + +/* If you choose to abort compression or decompression before completing + * jpeg_finish_(de)compress, then you need to clean up to release memory, + * temporary files, etc. You can just call jpeg_destroy_(de)compress + * if you're done with the JPEG object, but if you want to clean it up and + * reuse it, call this: + */ +EXTERN(void) jpeg_abort_compress JPP((j_compress_ptr cinfo)); +EXTERN(void) jpeg_abort_decompress JPP((j_decompress_ptr cinfo)); + +/* Generic versions of jpeg_abort and jpeg_destroy that work on either + * flavor of JPEG object. These may be more convenient in some places. + */ +EXTERN(void) jpeg_abort JPP((j_common_ptr cinfo)); +EXTERN(void) jpeg_destroy JPP((j_common_ptr cinfo)); + +/* Default restart-marker-resync procedure for use by data source modules */ +EXTERN(boolean) jpeg_resync_to_restart JPP((j_decompress_ptr cinfo, + int desired)); + + +/* These marker codes are exported since applications and data source modules + * are likely to want to use them. + */ + +#define JPEG_RST0 0xD0 /* RST0 marker code */ +#define JPEG_EOI 0xD9 /* EOI marker code */ +#define JPEG_APP0 0xE0 /* APP0 marker code */ +#define JPEG_COM 0xFE /* COM marker code */ + + +/* If we have a brain-damaged compiler that emits warnings (or worse, errors) + * for structure definitions that are never filled in, keep it quiet by + * supplying dummy definitions for the various substructures. + */ + +#ifdef INCOMPLETE_TYPES_BROKEN +#ifndef JPEG_INTERNALS /* will be defined in jpegint.h */ +struct jvirt_sarray_control { long dummy; }; +struct jvirt_barray_control { long dummy; }; +struct jpeg_comp_master { long dummy; }; +struct jpeg_c_main_controller { long dummy; }; +struct jpeg_c_prep_controller { long dummy; }; +struct jpeg_c_coef_controller { long dummy; }; +struct jpeg_marker_writer { long dummy; }; +struct jpeg_color_converter { long dummy; }; +struct jpeg_downsampler { long dummy; }; +struct jpeg_forward_dct { long dummy; }; +struct jpeg_entropy_encoder { long dummy; }; +struct jpeg_decomp_master { long dummy; }; +struct jpeg_d_main_controller { long dummy; }; +struct jpeg_d_coef_controller { long dummy; }; +struct jpeg_d_post_controller { long dummy; }; +struct jpeg_input_controller { long dummy; }; +struct jpeg_marker_reader { long dummy; }; +struct jpeg_entropy_decoder { long dummy; }; +struct jpeg_inverse_dct { long dummy; }; +struct jpeg_upsampler { long dummy; }; +struct jpeg_color_deconverter { long dummy; }; +struct jpeg_color_quantizer { long dummy; }; +#endif /* JPEG_INTERNALS */ +#endif /* INCOMPLETE_TYPES_BROKEN */ + + +/* + * The JPEG library modules define JPEG_INTERNALS before including this file. + * The internal structure declarations are read only when that is true. + * Applications using the library should not include jpegint.h, but may wish + * to include jerror.h. + */ + +#ifdef JPEG_INTERNALS +#include "jpegint.h" /* fetch private declarations */ +#include "jerror.h" /* fetch error codes too */ +#endif + +#ifdef __cplusplus +#ifndef DONT_USE_EXTERN_C +} +#endif +#endif + +#endif /* JPEGLIB_H */