image reader test

image-reader-test.cpp

#include <iostream>
#include <mapnik/image_reader.hpp>
#include <mapnik/image_util.hpp>
#include <mapnik/graphics.hpp>
#include <mapnik/noncopyable.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/make_shared.hpp>

/*

clang++ -o image-reader-test image-reader-test.cpp `mapnik-config --cxxflags --defines --includes --libs --ldflags --dep-libs`
*/

int main( int, char*[] )
{
    try
    {
        std::string  dest_fn = "./mapnik/tests/data/images/dummy.png";
        std::auto_ptr<mapnik::image_reader> reader(mapnik::get_image_reader(dest_fn,"png"));
        if (!reader.get())
        {
            throw mapnik::image_reader_exception("Failed to load: " + dest_fn);
        }
        boost::shared_ptr<mapnik::image_32> image_ptr1 = boost::make_shared<mapnik::image_32>(reader->width(),reader->height());
        reader->read(0,0,image_ptr1->data());
        std::clog << "works if you see this: " << image_ptr1->width() << "\n";

    }
    catch (std::exception const & ex)
    {
        std::clog << "C++ image i/o problem: " << ex.what() << "\n";
    }
    return 0;
}