ViSP  2.8.0
testVideoDevice.cpp

Image display manipulations.

/****************************************************************************
*
* $Id: testVideoDevice.cpp 4323 2013-07-18 09:24:01Z fspindle $
*
* This file is part of the ViSP software.
* Copyright (C) 2005 - 2013 by INRIA. All rights reserved.
*
* This software is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* ("GPL") version 2 as published by the Free Software Foundation.
* See the file LICENSE.txt at the root directory of this source
* distribution for additional information about the GNU GPL.
*
* For using ViSP with software that can not be combined with the GNU
* GPL, please contact INRIA about acquiring a ViSP Professional
* Edition License.
*
* See http://www.irisa.fr/lagadic/visp/visp.html for more information.
*
* This software was developed at:
* INRIA Rennes - Bretagne Atlantique
* Campus Universitaire de Beaulieu
* 35042 Rennes Cedex
* France
* http://www.irisa.fr/lagadic
*
* If you have questions regarding the use of this file, please contact
* INRIA at visp@inria.fr
*
* This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
* WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
*
* Description:
* Test for image display.
*
* Authors:
* Anthony Saunier
*
*****************************************************************************/
#include <visp/vpConfig.h>
#include <visp/vpDebug.h>
#include <stdlib.h>
#include <iostream>
#include <string>
#if (defined (VISP_HAVE_GTK) || defined(VISP_HAVE_X11) || defined(VISP_HAVE_GDI) || defined(VISP_HAVE_D3D9) || defined(VISP_HAVE_OPENCV))
#include <visp/vpImage.h>
#include <visp/vpImageIo.h>
#include <visp/vpParseArgv.h>
#include <visp/vpIoTools.h>
#include <visp/vpDisplayOpenCV.h>
#include <visp/vpDisplayGTK.h>
#include <visp/vpDisplayX.h>
#include <visp/vpDisplayGDI.h>
#include <visp/vpDisplayD3D.h>
// List of allowed command line options
#define GETOPTARGS "i:hlt:dc"
typedef enum {
vpX11,
vpGTK,
vpGDI,
vpD3D,
vpCV
} vpDisplayType;
void usage(const char *name, const char *badparam, std::string ipath, vpDisplayType &dtype)
{
fprintf(stdout, "\n\
Test video devices or display.\n\
\n\
SYNOPSIS\n\
%s [-i <input image path>] \n\
[-t <type of video device>] [-l] [-c] [-d] [-h]\n\
", name);
std::string display;
switch(dtype) {
case vpX11: display = "X11"; break;
case vpGTK: display = "GTK"; break;
case vpGDI: display = "GDI"; break;
case vpD3D: display = "D3D"; break;
case vpCV: display = "CV"; break;
}
fprintf(stdout, "\n\
OPTIONS: Default\n\
-i <input image path> %s\n\
Set image input path.\n\
From this path read \"ViSP-images/Klimt/Klimt.pgm\"\n\
and \"ViSP-images/Klimt/Klimt.ppm\" images.\n\
Setting the VISP_INPUT_IMAGE_PATH environment\n\
variable produces the same behaviour than using\n\
this option.\n\
\n\
-t <type of video device> \"%s\"\n\
String specifying the video device to use.\n\
Possible values:\n\
\"X11\": only on UNIX platforms,\n\
\"GTK\": on all plaforms,\n\
\"GDI\": only on Windows platform (Graphics Device Interface),\n\
\"D3D\": only on Windows platform (Direct3D).\n\
\"CV\" : (OpenCV).\n\
\n\
-c\n\
Disable the mouse click. Useful to automaze the \n\
execution of this program without humain intervention.\n\
\n\
-d \n\
Turn off the display.\n\
\n\
-l\n\
Print the list of video-devices available and exit.\n\
\n\
-h\n\
Print the help.\n\n",
ipath.c_str(), display.c_str());
if (badparam)
fprintf(stdout, "\nERROR: Bad parameter [%s]\n", badparam);
}
bool getOptions(int argc, const char **argv,
std::string &ipath, vpDisplayType &dtype, bool &list,
bool &click_allowed, bool &display )
{
const char *optarg;
int c;
std::string sDisplayType;
while ((c = vpParseArgv::parse(argc, argv, GETOPTARGS, &optarg)) > 1) {
switch (c) {
case 'i': ipath = optarg; break;
case 'l': list = true; break;
case 't': sDisplayType = optarg;
// Parse the display type option
if (sDisplayType.compare("X11") == 0) {
dtype = vpX11;
}
else if (sDisplayType.compare("GTK") == 0) {
dtype = vpGTK;
}
else if (sDisplayType.compare("GDI") == 0) {
dtype = vpGDI;
}
else if (sDisplayType.compare("D3D") == 0) {
dtype = vpD3D;
}
else if (sDisplayType.compare("CV") == 0) {
dtype = vpCV;
}
break;
case 'h': usage(argv[0], NULL, ipath,dtype); return false; break;
case 'c': click_allowed = false; break;
case 'd': display = false; break;
default:
usage(argv[0], optarg, ipath,dtype); return false; break;
}
}
if ((c == 1) || (c == -1)) {
// standalone param or error
usage(argv[0], NULL, ipath, dtype);
std::cerr << "ERROR: " << std::endl;
std::cerr << " Bad argument " << optarg << std::endl << std::endl;
return false;
}
return true;
}
int
main(int argc, const char ** argv)
{
try{
std::string env_ipath;
std::string opt_ipath;
bool opt_list = false; // To print the list of video devices
vpDisplayType opt_dtype; // Type of display to use
std::string ipath;
std::string filename;
bool opt_click_allowed = true;
bool opt_display = true;
// Default display is one available
#if defined VISP_HAVE_GTK
opt_dtype = vpGTK;
#elif defined VISP_HAVE_X11
opt_dtype = vpX11;
#elif defined VISP_HAVE_GDI
opt_dtype = vpGDI;
#elif defined VISP_HAVE_D3D9
opt_dtype = vpD3D;
#elif defined VISP_HAVE_OPENCV
opt_dtype = vpCV;
#endif
// Get the VISP_IMAGE_PATH environment variable value
char *ptenv = getenv("VISP_INPUT_IMAGE_PATH");
if (ptenv != NULL)
env_ipath = ptenv;
// Set the default input path
if (! env_ipath.empty())
ipath = env_ipath;
// Read the command line options
if (getOptions(argc, argv, opt_ipath, opt_dtype, opt_list,
opt_click_allowed, opt_display) == false) {
exit (-1);
}
// Print the list of video-devices available
if (opt_list) {
unsigned nbDevices = 0;
std::cout << "List of video-devices available: \n";
#if defined VISP_HAVE_GTK
std::cout << " GTK (use \"-t GTK\" option to use it)\n";
nbDevices ++;
#endif
#if defined VISP_HAVE_X11
std::cout << " X11 (use \"-t X11\" option to use it)\n";
nbDevices ++;
#endif
#if defined VISP_HAVE_GDI
std::cout << " GDI (use \"-t GDI\" option to use it)\n";
nbDevices ++;
#endif
#if defined VISP_HAVE_D3D9
std::cout << " D3D (use \"-t D3D\" option to use it)\n";
nbDevices ++;
#endif
#if defined VISP_HAVE_OPENCV
std::cout << " CV (use \"-t CV\" option to use it)\n";
nbDevices ++;
#endif
if (!nbDevices) {
std::cout << " No display is available\n";
}
return (0);
}
// Get the option values
if (!opt_ipath.empty())
ipath = opt_ipath;
// Compare ipath and env_ipath. If they differ, we take into account
// the input path comming from the command line option
if (!opt_ipath.empty() && !env_ipath.empty()) {
if (ipath != env_ipath) {
std::cout << std::endl
<< "WARNING: " << std::endl;
std::cout << " Since -i <visp image path=" << ipath << "> "
<< " is different from VISP_IMAGE_PATH=" << env_ipath << std::endl
<< " we skip the environment variable." << std::endl;
}
}
// Test if an input path is set
if (opt_ipath.empty() && env_ipath.empty()){
usage(argv[0], NULL, ipath, opt_dtype);
std::cerr << std::endl
<< "ERROR:" << std::endl;
std::cerr << " Use -i <visp image path> option or set VISP_INPUT_IMAGE_PATH "
<< std::endl
<< " environment variable to specify the location of the " << std::endl
<< " image path where test images are located." << std::endl << std::endl;
exit(-1);
}
// Create a grey level image
vpImage<unsigned char> I ;
// Create a color image
vpImage<vpRGBa> Irgba ;
// Load a grey image from the disk
filename = ipath + vpIoTools::path("/ViSP-images/Klimt/Klimt.pgm");
vpCTRACE << "Load " << filename << std::endl;
vpImageIo::read(I, filename) ;
// Load a color image from the disk
filename = ipath + vpIoTools::path("/ViSP-images/Klimt/Klimt.ppm");
vpCTRACE << "Load " << filename << std::endl;
vpImageIo::read(Irgba, filename) ;
// Create a display for the image
vpDisplay *display = NULL;
switch(opt_dtype) {
case vpX11:
std::cout << "Requested X11 display functionnalities..." << std::endl;
#if defined VISP_HAVE_X11
display = new vpDisplayX;
#else
std::cout << " Sorry, X11 video device is not available.\n";
std::cout << "Use \"" << argv[0]
<< " -l\" to print the list of available devices.\n";
return 0;
#endif
break;
case vpGTK:
std::cout << "Requested GTK display functionnalities..." << std::endl;
#if defined VISP_HAVE_GTK
display = new vpDisplayGTK;
#else
std::cout << " Sorry, GTK video device is not available.\n";
std::cout << "Use \"" << argv[0]
<< " -l\" to print the list of available devices.\n";
return 0;
#endif
break;
case vpGDI:
std::cout << "Requested GDI display functionnalities..." << std::endl;
#if defined VISP_HAVE_GDI
display = new vpDisplayGDI;
#else
std::cout << " Sorry, GDI video device is not available.\n";
std::cout << "Use \"" << argv[0]
<< " -l\" to print the list of available devices.\n";
return 0;
#endif
break;
case vpD3D:
std::cout << "Requested D3D display functionnalities..." << std::endl;
#if defined VISP_HAVE_D3D9
display = new vpDisplayD3D;
#else
std::cout << " Sorry, D3D video device is not available.\n";
std::cout << "Use \"" << argv[0]
<< " -l\" to print the list of available devices.\n";
return 0;
#endif
break;
case vpCV:
std::cout << "Requested OpenCV display functionnalities..." << std::endl;
#if defined VISP_HAVE_OPENCV
display = new vpDisplayOpenCV;
#else
std::cout << " Sorry, OpenCV video device is not available.\n";
std::cout << "Use \"" << argv[0]
<< " -l\" to print the list of available devices.\n";
return 0;
#endif
break;
}
if (opt_display){
// We open a window using either X11 or GTK or GDI or D3D.
// Its size is automatically defined by the image (I) size
display->init(I, 100, 100,"Display...") ;
// Display the image
// The image class has a member that specify a pointer toward
// the display that has been initialized in the display declaration
// therefore is is no longuer necessary to make a reference to the
// display variable.
vpDisplay::display(I) ;
//Flush the display
vpDisplay::flush(I) ;
std::cout << "A click to continue...\n";
if ( opt_click_allowed )
vpDisplay::getClick(I) ;
display->close(I);
// We open a window using either X11 or GTK or GDI or D3D
// but using anothe function who doesn't take title.
// Its size is automatically defined by the image (I) size
display->init(I, 100, 100);
// Display the image
// The image class has a member that specify a pointer toward
// the display that has been initialized in the display declaration
// therefore is is no longuer necessary to make a reference to the
// display variable.
vpDisplay::display(I) ;
//Flush the display
vpDisplay::flush(I) ;
std::cout << "A click to continue...\n";
if ( opt_click_allowed )
vpDisplay::getClick(I) ;
display->close(I);
// We open a window using either X11 or GTK or GDI or D3D.
// Its size is automatically defined by the image (I) size
display->init(Irgba, 100, 100,"Color display...");
// Display the image
// The image class has a member that specify a pointer toward
// the display that has been initialized in the display declaration
// therefore is is no longuer necessary to make a reference to the
// display variable.
vpDisplay::display(Irgba) ;
//Flush the display
vpDisplay::flush(Irgba) ;
std::cout << "A click to continue...\n";
if ( opt_click_allowed )
vpDisplay::getClick(Irgba) ;
display->close(Irgba);
// We open a window using either X11 or GTK or GDI or D3D
// but using anothe function who doesn't take title.
// Its size is automatically defined by the image (I) size
display->init(Irgba, 100, 100);
// Display the image
// The image class has a member that specify a pointer toward
// the display that has been initialized in the display declaration
// therefore is is no longuer necessary to make a reference to the
// display variable.
vpDisplay::display(Irgba) ;
//Flush the display
vpDisplay::flush(Irgba) ;
std::cout << "A click to exit...\n";
if ( opt_click_allowed )
vpDisplay::getClick(Irgba) ;
}
delete display;
}
catch(...) {
vpERROR_TRACE("Error while displaying the image") ;
exit(-1);
}
}
#else
int
main()
{
vpERROR_TRACE("You do not have display functionalities...");
}
#endif