Files
fluxengine/lib/imagereader/imagereader.cc
2020-03-31 00:14:23 +02:00

52 lines
1.2 KiB
C++

#include "globals.h"
#include "flags.h"
#include "dataspec.h"
#include "sector.h"
#include "sectorset.h"
#include "imagereader/imagereader.h"
#include "fmt/format.h"
std::map<std::string, ImageReader::Constructor> ImageReader::formats =
{
{".adf", ImageReader::createImgImageReader},
{".d81", ImageReader::createImgImageReader},
{".img", ImageReader::createImgImageReader},
};
static bool ends_with(const std::string& value, const std::string& ending)
{
if (ending.size() > value.size())
return false;
return std::equal(ending.rbegin(), ending.rend(), value.rbegin());
}
ImageReader::Constructor ImageReader::findConstructor(const ImageSpec& spec)
{
const auto& filename = spec.filename;
for (const auto& e : formats)
{
if (ends_with(filename, e.first))
return e.second;
}
return NULL;
}
std::unique_ptr<ImageReader> ImageReader::create(const ImageSpec& spec)
{
verifyImageSpec(spec);
return findConstructor(spec)(spec);
}
void ImageReader::verifyImageSpec(const ImageSpec& spec)
{
if (!findConstructor(spec))
Error() << "unrecognised image filename extension";
}
ImageReader::ImageReader(const ImageSpec& spec):
spec(spec)
{}