mapnik/benchmark/test_png_encoding2.cpp

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#include "bench_framework.hpp"
#include "compare_images.hpp"
class test : public benchmark::test_case
{
boost::shared_ptr<image_32> im_;
public:
test(mapnik::parameters const& params)
: test_case(params) {
std::string filename("./benchmark/data/multicolor.png");
std::auto_ptr<mapnik::image_reader> reader(mapnik::get_image_reader(filename,"png"));
if (!reader.get())
{
throw mapnik::image_reader_exception("Failed to load: " + filename);
}
im_ = boost::make_shared<image_32>(reader->width(),reader->height());
reader->read(0,0,im_->data());
}
bool validate() const
{
std::string expected("./benchmark/data/multicolor-hextree-expected.png");
std::string actual("./benchmark/data/multicolor-hextree-actual.png");
mapnik::save_to_file(im_->data(),actual, "png8:m=h:z=1");
return benchmark::compare_images(actual,expected);
}
void operator()() const
{
std::string out;
for (std::size_t i=0;i<iterations_;++i) {
out.clear();
out = mapnik::save_to_string(im_->data(),"png8:m=h:z=1");
}
}
};
BENCHMARK(test,"encoding multicolor png")