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/**
* @file llimage_libtest.cpp
* @author Merov Linden
* @brief Integration test for the llimage library
*
* $LicenseInfo:firstyear=2011&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2011, Linden Research, Inc.
*
* This library 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;
* version 2.1 of the License only.
*
* This library 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "llpointer.h"
#include "llimage_libtest.h"
// Linden library includes
#include "llimage.h"
#include "llimagejpeg.h"
#include "llimagepng.h"
#include "llimagebmp.h"
#include "llimagetga.h"
#include "llimagej2c.h"
#include "lldir.h"
// system libraries
#include <iostream>
// doc string provided when invoking the program with --help
static const char USAGE[] = "\n"
"usage:\tllimage_libtest [options]\n"
"\n"
" --help print this help\n"
" --in <file1> <file2>... list of image files to load and convert\n"
" --out <file1> <file2>... list of image files to create (assumes same order as --in files)\n"
"\n";
// Create an empty formatted image instance of the correct type from the filename
LLPointer<LLImageFormatted> create_image(const std::string &filename)
{
std::string exten = gDirUtilp->getExtension(filename);
U32 codec = LLImageBase::getCodecFromExtension(exten);
LLPointer<LLImageFormatted> image;
switch (codec)
{
case IMG_CODEC_BMP:
image = new LLImageBMP();
break;
case IMG_CODEC_TGA:
image = new LLImageTGA();
break;
case IMG_CODEC_JPEG:
image = new LLImageJPEG();
break;
case IMG_CODEC_J2C:
image = new LLImageJ2C();
break;
case IMG_CODEC_PNG:
image = new LLImagePNG();
break;
default:
return NULL;
}
return image;
}
// Load an image from file and return a raw (decompressed) instance of its data
LLPointer<LLImageRaw> load_image(const std::string &src_filename)
{
LLPointer<LLImageFormatted> image = create_image(src_filename);
if (!image->load(src_filename))
{
return NULL;
}
if( (image->getComponents() != 3) && (image->getComponents() != 4) )
{
std::cout << "Image files with less than 3 or more than 4 components are not supported\n";
return NULL;
}
LLPointer<LLImageRaw> raw_image = new LLImageRaw;
if (!image->decode(raw_image, 0.0f))
{
return NULL;
}
return raw_image;
}
// Save a raw image instance into a file
bool save_image(const std::string &dest_filename, LLPointer<LLImageRaw> raw_image)
{
LLPointer<LLImageFormatted> image = create_image(dest_filename);
if (!image->encode(raw_image, 0.0f))
{
return false;
}
return image->save(dest_filename);
}
int main(int argc, char** argv)
{
// List of input and output files
std::list<std::string> input_filenames;
std::list<std::string> output_filenames;
// Init whatever is necessary
ll_init_apr();
LLImage::initClass();
// Analyze command line arguments
for (int arg = 1; arg < argc; ++arg)
{
if (!strcmp(argv[arg], "--help"))
{
// Send the usage to standard out
std::cout << USAGE << std::endl;
return 0;
}
else if (!strcmp(argv[arg], "--in") && arg < argc-1)
{
std::string file_name = argv[arg+1];
while (file_name[0] != '-') // if arg starts with '-', we consider it's not a file name but some other argument
{
input_filenames.push_back(file_name); // Add file name to the list
arg += 1; // Skip that arg now we know it's a file name
if ((arg + 1) == argc) // Break out of the loop if we reach the end of the arg list
break;
file_name = argv[arg+1]; // Next argument and loop over
}
}
else if (!strcmp(argv[arg], "--out") && arg < argc-1)
{
std::string file_name = argv[arg+1];
while (file_name[0] != '-') // if arg starts with '-', we consider it's not a file name but some other argument
{
output_filenames.push_back(file_name); // Add file name to the list
arg += 1; // Skip that arg now we know it's a file name
if ((arg + 1) == argc) // Break out of the loop if we reach the end of the arg list
break;
file_name = argv[arg+1]; // Next argument and loop over
}
}
}
// Analyze the list of (input,output) files
if (input_filenames.size() == 0)
{
std::cout << "No input file, nothing to do -> exit" << std::endl;
return 0;
}
// TODO: For the moment, we simply convert each input file to something. This needs to evolve...
if (input_filenames.size() != output_filenames.size())
{
std::cout << "Number of output and input files different -> exit" << std::endl;
return 0;
}
std::list<std::string>::iterator in_file = input_filenames.begin();
std::list<std::string>::iterator out_file = output_filenames.begin();
std::list<std::string>::iterator end = input_filenames.end();
for (; in_file != end; ++in_file, ++out_file)
{
// Load file
LLPointer<LLImageRaw> raw_image = load_image(*in_file);
if (!raw_image)
{
std::cout << "Error: Image " << *in_file << " could not be loaded" << std::endl;
continue;
}
// Save file
if (!save_image(*out_file, raw_image))
{
std::cout << "Error: Image " << *out_file << " could not be saved" << std::endl;
continue;
}
std::cout << *in_file << " -> " << *out_file << std::endl;
// Output stats on each file
}
// Cleanup and exit
LLImage::cleanupClass();
return 0;
}
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