openjpeg/applications/jpip/libopenjpip/index_manager.c

709 lines
22 KiB
C

/*
* $Id: index_manager.c 53 2011-05-09 16:55:39Z kaori $
*
* Copyright (c) 2002-2011, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2011, Professor Benoit Macq
* Copyright (c) 2010-2011, Kaori Hagihara
* 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.
*/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <string.h>
#include "bool.h"
#include "index_manager.h"
#include "box_manager.h"
#include "manfbox_manager.h"
#include "mhixbox_manager.h"
#include "codestream_manager.h"
#include "marker_manager.h"
#include "faixbox_manager.h"
#include "boxheader_manager.h"
#ifdef SERVER
#include "fcgi_stdio.h"
#define logstream FCGI_stdout
#else
#define FCGI_stdout stdout
#define FCGI_stderr stderr
#define logstream stderr
#endif //SERVER
/**
* chekc JP2 box indexing
*
* @param[in] toplev_boxlist top level box list
* @return if correct (true) or wrong (false)
*/
bool check_JP2boxidx( boxlist_param_t *toplev_boxlist);
/**
* set code index parameters (parse cidx box)
* Annex I
*
* @param[in] cidx_box pointer to the reference cidx_box
* @param[out] codeidx pointer to index parameters
* @return if succeeded (true) or failed (false)
*/
bool set_cidxdata( box_param_t *cidx_box, index_param_t *codeidx);
index_param_t * parse_jp2file( int fd)
{
index_param_t *jp2idx;
box_param_t *cidx;
metadatalist_param_t *metadatalist;
boxlist_param_t *toplev_boxlist;
struct stat sb;
if( fstat( fd, &sb) == -1){
fprintf( FCGI_stdout, "Reason: Target broken (fstat error)\r\n");
return NULL;
}
if( !(toplev_boxlist = get_boxstructure( fd, 0, sb.st_size))){
fprintf( FCGI_stderr, "Error: Not correctl JP2 format\n");
return NULL;
}
if( !check_JP2boxidx( toplev_boxlist)){
fprintf( FCGI_stderr, "Index format not supported\n");
delete_boxlist( &toplev_boxlist);
return NULL;
}
if( !(cidx = search_box( "cidx", toplev_boxlist))){
fprintf( FCGI_stderr, "Box cidx not found\n");
delete_boxlist( &toplev_boxlist);
return NULL;
}
jp2idx = (index_param_t *)malloc( sizeof(index_param_t));
if( !set_cidxdata( cidx, jp2idx)){
fprintf( FCGI_stderr, "Error: Not correctl format in cidx box\n");
free(jp2idx);
delete_boxlist( &toplev_boxlist);
return NULL;
}
delete_boxlist( &toplev_boxlist);
metadatalist = const_metadatalist( fd);
jp2idx->metadatalist = metadatalist;
#ifndef SERVER
fprintf( logstream, "local log: code index created\n");
#endif
return jp2idx;
}
void print_index( index_param_t index)
{
int i;
fprintf( logstream, "index info:\n");
fprintf( logstream, "\tCodestream Offset: %#llx\n", index.offset);
fprintf( logstream, "\t Length: %#llx\n", index.length);
fprintf( logstream, "\tMain header Length: %#llx\n", index.mhead_length);
print_SIZ( index.SIZ);
print_COD( index.COD);
fprintf( logstream, "Tile part information: \n");
print_faixbox( index.tilepart);
fprintf( logstream, "Tile header information: \n");
for( i=0; i<index.SIZ.XTnum*index.SIZ.YTnum ;i++)
print_mhixbox( index.tileheader[i]);
fprintf( logstream, "Precinct packet information: \n");
for( i=0; i<index.SIZ.Csiz; i++){
fprintf( logstream, "Component %d\n", i);
print_faixbox( index.precpacket[i]);
}
print_allmetadata( index.metadatalist);
}
void print_SIZ( SIZmarker_param_t SIZ)
{
int i;
fprintf( logstream, "\tImage and Tile SIZ parameters\n");
fprintf( logstream, "\t Rsiz: %#x\n", SIZ.Rsiz);
fprintf( logstream, "\t Xsiz, Ysiz: (%d,%d) = (%#x, %#x)\n", SIZ.Xsiz, SIZ.Ysiz, SIZ.Xsiz, SIZ.Ysiz);
fprintf( logstream, "\t XOsiz, YOsiz: (%d,%d) = (%#x, %#x)\n", SIZ.XOsiz, SIZ.YOsiz, SIZ.XOsiz, SIZ.YOsiz);
fprintf( logstream, "\t XTsiz, YTsiz: (%d,%d) = (%#x, %#x)\n", SIZ.XTsiz, SIZ.YTsiz, SIZ.XTsiz, SIZ.YTsiz);
fprintf( logstream, "\t XTOsiz, YTOsiz: (%d,%d) = (%#x, %#x)\n", SIZ.XTOsiz, SIZ.YTOsiz, SIZ.XTOsiz, SIZ.YTOsiz);
fprintf( logstream, "\t XTnum, YTnum: (%d,%d)\n", SIZ.XTnum, SIZ.YTnum);
fprintf( logstream, "\t Num of Components: %d\n", SIZ.Csiz);
for( i=0; i<SIZ.Csiz; i++)
fprintf( logstream, "\t[%d] (Ssiz, XRsiz, YRsiz): (%d, %d, %d) = (%#x, %#x, %#x)\n", i, SIZ.Ssiz[i], SIZ.XRsiz[i], SIZ.YRsiz[i], SIZ.Ssiz[i], SIZ.XRsiz[i], SIZ.YRsiz[i]);
}
void print_COD( CODmarker_param_t COD)
{
int i;
fprintf( logstream, "\tCoding style default COD parameters\n");
fprintf( logstream, "\t Progression order: %d [ LRCP=0, RLCP=1, RPCL=2, PCRL=3, CPRL=4]\n", COD.prog_order);
fprintf( logstream, "\t Num of layers: %d\n", COD.numOflayers);
fprintf( logstream, "\t Decomposition lvl: %d\n", COD.numOfdecomp);
for( i=0; i<=((COD.Scod & 0x01) ? COD.numOfdecomp:0); i++){
fprintf( logstream, "\t [%d] XPsiz, YPsiz: (%d,%d) = (%#x, %#x)\n",i, COD.XPsiz[i], COD.YPsiz[i], COD.XPsiz[i], COD.YPsiz[i]);
}
}
void delete_index( index_param_t **index)
{
int i;
delete_metadatalist( &((*index)->metadatalist));
free( (*index)->COD.XPsiz);
free( (*index)->COD.YPsiz);
delete_faixbox( &((*index)->tilepart));
for( i=0; i< (*index)->SIZ.XTnum*(*index)->SIZ.YTnum ;i++)
delete_mhixbox( &((*index)->tileheader[i]));
free( (*index)->tileheader);
for( i=0; i<(*index)->SIZ.Csiz; i++)
delete_faixbox( &((*index)->precpacket[i]));
free( (*index)->precpacket);
free(*index);
}
bool check_JP2boxidx( boxlist_param_t *toplev_boxlist)
{
box_param_t *iptr, *fidx, *prxy;
box_param_t *cidx, *jp2c;
iptr = search_box( "iptr", toplev_boxlist);
fidx = search_box( "fidx", toplev_boxlist);
cidx = search_box( "cidx", toplev_boxlist);
jp2c = search_box( "jp2c", toplev_boxlist);
prxy = gene_childboxbyType( fidx, 0, "prxy");
Byte8_t off = fetch_DBox8bytebigendian( iptr, 0);
if( off != fidx->offset)
fprintf( FCGI_stderr, "Reference File Index box offset in Index Finder box not correct\n");
Byte8_t len = fetch_DBox8bytebigendian( iptr, 8);
if( len != fidx->length)
fprintf( FCGI_stderr, "Reference File Index box length in Index Finder box not correct\n");
int pos = 0;
Byte8_t ooff = fetch_DBox8bytebigendian( prxy, pos);
if( ooff != jp2c->offset)
fprintf( FCGI_stderr, "Reference jp2c offset in prxy box not correct\n");
pos += 8;
boxheader_param_t *obh = gene_childboxheader( prxy, pos);
if( obh->length != jp2c->length || strncmp( obh->type, "jp2c",4)!=0)
fprintf( FCGI_stderr, "Reference jp2c header in prxy box not correct\n");
pos += obh->headlen;
free(obh);
Byte_t ni = fetch_DBox1byte( prxy, pos);
if( ni != 1){
fprintf( FCGI_stderr, "Multiple indexes not supported\n");
return false;
}
pos += 1;
Byte8_t ioff = fetch_DBox8bytebigendian( prxy, pos);
if( ioff != cidx->offset)
fprintf( FCGI_stderr, "Reference cidx offset in prxy box not correct\n");
pos += 8;
boxheader_param_t *ibh = gene_childboxheader( prxy, pos);
if( ibh->length != cidx->length || strncmp( ibh->type, "cidx",4)!=0)
fprintf( FCGI_stderr, "Reference cidx header in prxy box not correct\n");
pos += ibh->headlen;
free(ibh);
free(prxy);
return true;
}
/**
* set code index parameters from cptr box
* I.3.2.2 Codestream Finder box
*
* @param[in] cidx_box pointer to the reference cidx_box
* @param[out] jp2idx pointer to index parameters
* @return if succeeded (true) or failed (false)
*/
bool set_cptrdata( box_param_t *cidx_box, index_param_t *jp2idx);
/**
* set code index parameters from mhix box for main header
* I.3.2.4.3 Header Index Table box
*
* @param[in] cidx_box pointer to the reference cidx_box
* @param[in] codestream codestream parameters
* @param[out] jp2idx pointer to index parameters
* @return if succeeded (true) or failed (false)
*/
bool set_mainmhixdata( box_param_t *cidx_box, codestream_param_t codestream, index_param_t *jp2idx);
/**
* set code index parameters from tpix box
* I.3.2.4.4 Tile-part Index Table box
*
* @param[in] cidx_box pointer to the reference cidx_box
* @param[out] jp2idx pointer to index parameters
* @return if succeeded (true) or failed (false)
*/
bool set_tpixdata( box_param_t *cidx_box, index_param_t *jp2idx);
/**
* set code index parameters from thix box
* I.3.2.4.5 Tile Header Index Table box
*
* @param[in] cidx_box pointer to the reference cidx_box
* @param[out] jp2idx pointer to index parameters
* @return if succeeded (true) or failed (false)
*/
bool set_thixdata( box_param_t *cidx_box, index_param_t *jp2idx);
/**
* set code index parameters from ppix box
* I.3.2.4.6 Precinct Packet Index Table box
*
* @param[in] cidx_box pointer to the reference cidx_box
* @param[out] jp2idx pointer to index parameters
* @return if succeeded (true) or failed (false)
*/
bool set_ppixdata( box_param_t *cidx_box, index_param_t *jp2idx);
bool set_cidxdata( box_param_t *cidx_box, index_param_t *jp2idx)
{
box_param_t *manf_box;
manfbox_param_t *manf;
codestream_param_t codestream;
set_cptrdata( cidx_box, jp2idx);
codestream = set_codestream( cidx_box->fd, jp2idx->offset, jp2idx->length);
manf_box = gene_boxbyType( cidx_box->fd, get_DBoxoff( cidx_box), get_DBoxlen( cidx_box), "manf");
manf = gene_manfbox( manf_box);
if( !search_boxheader( "mhix", manf)){
fprintf( FCGI_stderr, "Error: mhix box not present in manfbox\n");
free(jp2idx);
return false;
}
set_mainmhixdata( cidx_box, codestream, jp2idx);
if( !search_boxheader( "tpix", manf)){
fprintf( FCGI_stderr, "Error: tpix box not present in manfbox\n");
free(jp2idx);
return false;
}
set_tpixdata( cidx_box, jp2idx);
if( !search_boxheader( "thix", manf)){
fprintf( FCGI_stderr, "Error: thix box not present in manfbox\n");
free(jp2idx);
return false;
}
set_thixdata( cidx_box, jp2idx);
if( !search_boxheader( "ppix", manf)){
fprintf( FCGI_stderr, "Error: ppix box not present in manfbox\n");
free(jp2idx);
return false;
}
set_ppixdata( cidx_box, jp2idx);
delete_manfbox( &manf);
free( manf_box);
return true;
}
bool set_cptrdata( box_param_t *cidx_box, index_param_t *jp2idx)
{
box_param_t *box; //!< cptr box
Byte2_t dr, cont;
if( !(box = gene_boxbyType( cidx_box->fd, get_DBoxoff( cidx_box), get_DBoxlen( cidx_box), "cptr")))
return false;
// DR: Data Reference.
// If 0, the codestream or its Fragment Table box exists in the current file
if(( dr = fetch_DBox2bytebigendian( box, 0))){
fprintf( FCGI_stderr, "Error: Codestream not present in current file\n");
free( box);
return false;
}
// CONT: Container Type
// If 0, the entire codestream appears as a contiguous range of
// bytes within its file or resource.
if(( cont = fetch_DBox2bytebigendian( box, 2))){
fprintf( FCGI_stderr, "Error: Can't cope with fragmented codestreams yet\n");
free( box);
return false;
}
jp2idx->offset = fetch_DBox8bytebigendian( box, 4);
jp2idx->length = fetch_DBox8bytebigendian( box, 12);
free( box);
return true;
}
/**
* set SIZ marker information
* A.5 Fixed information marker segment
* A.5.1 Image and tile size (SIZ)
*
* @param[in] sizmkidx pointer to SIZ marker index in mhix box
* @param[in] codestream codestream parameters
* @param[out] SIZ SIZ marker parameters pointer
* @return if succeeded (true) or failed (false)
*/
bool set_SIZmkrdata( markeridx_param_t *sizmkidx, codestream_param_t codestream, SIZmarker_param_t *SIZ);
/**
* set code index parameters from COD marker in codestream
* A.6 Functional marker segments
* A.6.1 Coding style default (COD)
*
* @param[in] codmkidx pointer to COD marker index in mhix box
* @param[in] codestream codestream parameters
* @param[out] COD COD marker parameters pointer
* @return if succeeded (true) or failed (false)
*/
bool set_CODmkrdata( markeridx_param_t *codmkidx, codestream_param_t codestream, CODmarker_param_t *COD);
bool set_mainmhixdata( box_param_t *cidx_box, codestream_param_t codestream, index_param_t *jp2idx)
{
box_param_t *mhix_box;
mhixbox_param_t *mhix;
markeridx_param_t *sizmkidx;
markeridx_param_t *codmkidx;
if( !(mhix_box = gene_boxbyType( cidx_box->fd, get_DBoxoff( cidx_box), get_DBoxlen( cidx_box), "mhix")))
return false;
jp2idx->mhead_length = fetch_DBox8bytebigendian( mhix_box, 0);
mhix = gene_mhixbox( mhix_box);
free( mhix_box);
sizmkidx = search_markeridx( 0xff51, mhix);
set_SIZmkrdata( sizmkidx, codestream, &(jp2idx->SIZ));
codmkidx = search_markeridx( 0xff52, mhix);
set_CODmkrdata( codmkidx, codestream, &(jp2idx->COD));
delete_mhixbox( &mhix);
return true;
}
bool set_tpixdata( box_param_t *cidx_box, index_param_t *jp2idx)
{
box_param_t *tpix_box; //!< tpix box
box_param_t *faix_box; //!< faix box
if( !(tpix_box = gene_boxbyType( cidx_box->fd, get_DBoxoff( cidx_box), get_DBoxlen( cidx_box), "tpix"))){
fprintf( FCGI_stderr, "Error: tpix box not present in cidx box\n");
return false;
}
if( !(faix_box = gene_boxbyType( tpix_box->fd, get_DBoxoff( tpix_box), get_DBoxlen( tpix_box), "faix"))){
fprintf( FCGI_stderr, "Error: faix box not present in tpix box\n");
return false;
}
jp2idx->tilepart = gene_faixbox( faix_box);
free( tpix_box);
free( faix_box);
return true;
}
bool set_thixdata( box_param_t *cidx_box, index_param_t *jp2idx)
{
box_param_t *thix_box, *manf_box, *mhix_box;
manfbox_param_t *manf;
boxheader_param_t *ptr;
mhixbox_param_t *mhix;
Byte8_t pos, mhixseqoff;
Byte2_t tile_no;
if( !(thix_box = gene_boxbyType( cidx_box->fd, get_DBoxoff( cidx_box), get_DBoxlen( cidx_box), "thix"))){
fprintf( FCGI_stderr, "Error: thix box not present in cidx box\n");
return false;
}
if( !(manf_box = gene_boxbyType( thix_box->fd, get_DBoxoff( thix_box), get_DBoxlen( thix_box), "manf"))){
fprintf( FCGI_stderr, "Error: manf box not present in thix box\n");
free( thix_box);
return false;
}
manf = gene_manfbox( manf_box);
ptr = manf->first;
mhixseqoff = manf_box->offset+manf_box->length;
pos = 0;
tile_no = 0;
jp2idx->tileheader = (mhixbox_param_t **)malloc( jp2idx->SIZ.XTnum*jp2idx->SIZ.YTnum*sizeof(mhixbox_param_t *));
while( ptr){
if( !(mhix_box = gene_boxbyType( thix_box->fd, mhixseqoff+pos, get_DBoxlen( thix_box)-manf_box->length-pos, "mhix"))){
fprintf( FCGI_stderr, "Error: mhix box not present in thix box\n");
delete_manfbox( &manf);
free( manf_box);
free( thix_box);
return false;
}
mhix = gene_mhixbox( mhix_box);
pos += mhix_box->length;
ptr = ptr->next;
free( mhix_box);
jp2idx->tileheader[tile_no++] = mhix;
}
delete_manfbox( &manf);
free( manf_box);
free( thix_box);
return true;
}
bool set_ppixdata( box_param_t *cidx_box, index_param_t *jp2idx)
{
box_param_t *ppix_box, *faix_box, *manf_box;
manfbox_param_t *manf; //!< manf
boxheader_param_t *bh; //!< box headers
faixbox_param_t *faix; //!< faix
Byte8_t inbox_offset;
int comp_idx;
if( !(ppix_box = gene_boxbyType( cidx_box->fd, get_DBoxoff( cidx_box), get_DBoxlen( cidx_box), "ppix"))){
fprintf( FCGI_stderr, "Error: ppix box not present in cidx box\n");
return false;
}
inbox_offset = get_DBoxoff( ppix_box);
if( !(manf_box = gene_boxbyType( ppix_box->fd, inbox_offset, get_DBoxlen( ppix_box), "manf"))){
fprintf( FCGI_stderr, "Error: manf box not present in ppix box\n");
free( ppix_box);
return false;
}
free( ppix_box);
manf = gene_manfbox( manf_box);
bh = search_boxheader( "faix", manf);
inbox_offset = manf_box->offset + manf_box->length;
free( manf_box);
jp2idx->precpacket = (faixbox_param_t **)malloc( jp2idx->SIZ.Csiz*sizeof(faixbox_param_t *));
for( comp_idx=0; bh!=NULL; bh=bh->next, comp_idx++){
if( jp2idx->SIZ.Csiz <= comp_idx ){
fprintf( FCGI_stderr, "Error: num of faix boxes is not identical to num of components in ppix box\n");
return false;
}
if( !(faix_box = gene_boxbyOffset( cidx_box->fd, inbox_offset))){
fprintf( FCGI_stderr, "Error: faix box not present in ppix box\n");
return false;
}
faix = gene_faixbox( faix_box);
jp2idx->precpacket[comp_idx] = faix;
inbox_offset = faix_box->offset + faix_box->length;
free( faix_box);
}
free(manf);
return true;
}
bool set_SIZmkrdata( markeridx_param_t *sizmkidx, codestream_param_t codestream, SIZmarker_param_t *SIZ)
{
marker_param_t sizmkr;
int i;
sizmkr = set_marker( codestream, sizmkidx->code, sizmkidx->offset, sizmkidx->length);
SIZ->Lsiz = fetch_marker2bytebigendian( sizmkr, 0);
if( sizmkidx->length != SIZ->Lsiz){
fprintf( FCGI_stderr, "Error: marker %#x index is not correct\n", sizmkidx->code);
return false;
}
SIZ->Rsiz = fetch_marker2bytebigendian( sizmkr, 2);
SIZ->Xsiz = fetch_marker4bytebigendian( sizmkr, 4);
SIZ->Ysiz = fetch_marker4bytebigendian( sizmkr, 8);
SIZ->XOsiz = fetch_marker4bytebigendian( sizmkr, 12);
SIZ->YOsiz = fetch_marker4bytebigendian( sizmkr, 16);
SIZ->XTsiz = fetch_marker4bytebigendian( sizmkr, 20);
SIZ->YTsiz = fetch_marker4bytebigendian( sizmkr, 24);
SIZ->XTOsiz = fetch_marker4bytebigendian( sizmkr, 28);
SIZ->YTOsiz = fetch_marker4bytebigendian( sizmkr, 32);
SIZ->Csiz = fetch_marker2bytebigendian( sizmkr, 36);
SIZ->XTnum = ( SIZ->Xsiz-SIZ->XTOsiz+SIZ->XTsiz-1)/SIZ->XTsiz;
SIZ->YTnum = ( SIZ->Ysiz-SIZ->YTOsiz+SIZ->YTsiz-1)/SIZ->YTsiz;
for( i=0; i<(int)SIZ->Csiz; i++){
SIZ->Ssiz[i] = fetch_marker1byte( sizmkr, 38+i*3);
SIZ->XRsiz[i] = fetch_marker1byte( sizmkr, 39+i*3);
SIZ->YRsiz[i] = fetch_marker1byte( sizmkr, 40+i*3);
}
return true;
}
bool set_CODmkrdata( markeridx_param_t *codmkidx, codestream_param_t codestream, CODmarker_param_t *COD)
{
marker_param_t codmkr;
int i;
codmkr = set_marker( codestream, codmkidx->code, codmkidx->offset, codmkidx->length);
COD->Lcod = fetch_marker2bytebigendian( codmkr, 0);
if( codmkidx->length != COD->Lcod){
fprintf( FCGI_stderr, "Error: marker %#x index is not correct\n", codmkidx->code);
return false;
}
COD->Scod = fetch_marker1byte( codmkr, 2);
COD->prog_order = fetch_marker1byte( codmkr, 3);
COD->numOflayers = fetch_marker2bytebigendian( codmkr, 4);
COD->numOfdecomp = fetch_marker1byte( codmkr, 7);
if(COD->Scod & 0x01){
COD->XPsiz = (Byte4_t *)malloc( (COD->numOfdecomp+1)*sizeof(Byte4_t));
COD->YPsiz = (Byte4_t *)malloc( (COD->numOfdecomp+1)*sizeof(Byte4_t));
for( i=0; i<=COD->numOfdecomp; i++){
//precinct size
COD->XPsiz[i] = pow( 2, fetch_marker1byte( codmkr, 12+i) & 0x0F);
COD->YPsiz[i] = pow( 2,(fetch_marker1byte( codmkr, 12+i) & 0xF0) >> 4);
}
}
else{
COD->XPsiz = (Byte4_t *)malloc( sizeof(Byte4_t));
COD->YPsiz = (Byte4_t *)malloc( sizeof(Byte4_t));
COD->XPsiz[0] = COD->YPsiz[0] = pow(2,15);
}
return true;
}
Byte4_t max( Byte4_t n1, Byte4_t n2);
Byte4_t min( Byte4_t n1, Byte4_t n2);
range_param_t get_tile_range( Byte4_t Osiz, Byte4_t siz, Byte4_t TOsiz, Byte4_t Tsiz, Byte4_t tile_XYid, int level);
range_param_t get_tile_Xrange( SIZmarker_param_t SIZ, Byte4_t tile_id, int level)
{
return get_tile_range( SIZ.XOsiz, SIZ.Xsiz, SIZ.XTOsiz, SIZ.XTsiz, tile_id%SIZ.XTnum, level);
}
range_param_t get_tile_Yrange( SIZmarker_param_t SIZ, Byte4_t tile_id, int level)
{
return get_tile_range( SIZ.YOsiz, SIZ.Ysiz, SIZ.YTOsiz, SIZ.YTsiz, tile_id/SIZ.XTnum, level);
}
range_param_t get_tile_range( Byte4_t Osiz, Byte4_t siz, Byte4_t TOsiz, Byte4_t Tsiz, Byte4_t tile_XYid, int level)
{
range_param_t range;
int n;
range.minvalue = max( Osiz, TOsiz+tile_XYid*Tsiz);
range.maxvalue = min( siz, TOsiz+(tile_XYid+1)*Tsiz);
for( n=0; n<level; n++){
range.minvalue = ceil(range.minvalue/2.0);
range.maxvalue = ceil(range.maxvalue/2.0);
}
return range;
}
Byte4_t get_tile_XSiz( SIZmarker_param_t SIZ, Byte4_t tile_id, int level)
{
range_param_t tile_Xrange;
tile_Xrange = get_tile_Xrange( SIZ, tile_id, level);
return tile_Xrange.maxvalue - tile_Xrange.minvalue;
}
Byte4_t get_tile_YSiz( SIZmarker_param_t SIZ, Byte4_t tile_id, int level)
{
range_param_t tile_Yrange;
tile_Yrange = get_tile_Yrange( SIZ, tile_id, level);
return tile_Yrange.maxvalue - tile_Yrange.minvalue;
}
Byte4_t max( Byte4_t n1, Byte4_t n2)
{
if( n1 < n2)
return n2;
else
return n1;
}
Byte4_t min( Byte4_t n1, Byte4_t n2)
{
if( n1 < n2)
return n1;
else
return n2;
}