134 lines
4.3 KiB
C
134 lines
4.3 KiB
C
/*
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* $Id: imgreg_manager.c 44 2011-02-15 12:32:29Z kaori $
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*
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* Copyright (c) 2002-2011, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
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* Copyright (c) 2002-2011, Professor Benoit Macq
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* Copyright (c) 2010-2011, Kaori Hagihara
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <math.h>
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#include <stdlib.h>
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#include "imgreg_manager.h"
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#ifdef SERVER
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#include "fcgi_stdio.h"
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#define logstream FCGI_stdout
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#else
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#define FCGI_stdout stdout
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#define FCGI_stderr stderr
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#define logstream stderr
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#endif //SERVER
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imgreg_param_t map_viewin2imgreg( const int fx, const int fy,
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const int rx, const int ry,
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const int rw, const int rh,
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const int XOsiz, const int YOsiz,
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const int Xsiz, const int Ysiz,
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const int numOfdecomp)
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{
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imgreg_param_t imgreg;
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int px,py;
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int xmax, ymax;
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imgreg.xosiz = XOsiz;
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imgreg.yosiz = YOsiz;
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imgreg.fx = fx;
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imgreg.fy = fy;
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imgreg.level = 0;
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xmax = Xsiz;
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ymax = Ysiz;
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find_level( numOfdecomp, &imgreg.level, &imgreg.fx, &imgreg.fy, &imgreg.xosiz, &imgreg.yosiz, &xmax, &ymax);
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if( rx == -1 || ry == -1){
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imgreg.ox = 0;
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imgreg.oy = 0;
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}
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else{
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imgreg.ox = rx*imgreg.fx/fx;
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imgreg.oy = ry*imgreg.fy/fy;
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}
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if( rw == -1 || rh == -1){
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imgreg.sx = imgreg.fx;
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imgreg.sy = imgreg.fy;
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}
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else{
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px = ceil((double)((rx+rw)*imgreg.fx)/(double)fx);
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py = ceil((double)((ry+rh)*imgreg.fy)/(double)fy);
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imgreg.sx = px - imgreg.ox;
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imgreg.sy = py - imgreg.oy;
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}
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if( fx != imgreg.fx || fy != imgreg.fy)
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fprintf( FCGI_stdout, "JPIP-fsiz: %d,%d\r\n", imgreg.fx, imgreg.fy);
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if( rw != imgreg.sx || rh != imgreg.sy)
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fprintf( FCGI_stdout, "JPIP-rsiz: %d,%d\r\n", imgreg.sx, imgreg.sy);
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if( rx != imgreg.ox || ry != imgreg.oy)
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fprintf( FCGI_stdout, "JPIP-roff: %d,%d\r\n", imgreg.ox, imgreg.oy);
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return imgreg;
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}
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void find_level( int maxlev, int *lev, int *fx, int *fy, int *xmin, int *ymin, int *xmax, int *ymax)
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{
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int xwidth = *xmax - *xmin;
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int ywidth = *ymax - *ymin;
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/// Find smaller frame size for now (i.e. assume "round-down").
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if ((*fx < 1 && xwidth != 0) || (*fy < 1 && ywidth != 0)){
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fprintf( FCGI_stderr, "Frame size must be strictly positive");
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exit(-1);
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}
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else if( *lev < maxlev-1 && ( *fx < xwidth || *fy < ywidth)) {
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// Simulate the ceil function.
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*xmin = ceil((double)*xmin/(double)2.0);
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*ymin = ceil((double)*ymin/(double)2.0);
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*xmax = ceil((double)*xmax/(double)2.0);
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*ymax = ceil((double)*ymax/(double)2.0);
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(*lev) ++;
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find_level ( maxlev, lev, fx, fy, xmin, ymin, xmax, ymax);
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} else {
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*fx = xwidth;
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*fy = ywidth;
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}
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}
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void print_imgreg( imgreg_param_t imgreg)
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{
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#ifndef SERVER
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fprintf( logstream, "codestream image region:\n");
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fprintf( logstream, "\t fsiz: %d, %d\n", imgreg.fx, imgreg.fy);
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fprintf( logstream, "\t roff: %d, %d\n", imgreg.ox, imgreg.oy);
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fprintf( logstream, "\t rsiz: %d, %d\n", imgreg.sx, imgreg.sy);
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fprintf( logstream, "\t level: %d\n", imgreg.level);
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#endif
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}
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