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60bfe050d3
support for validating ImageSpecs before we actually want to read/write an image, so as to allow us to check the extension *before* wasting time reading a disk. Make .d81 an alias of .img.
53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
#include "globals.h"
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#include "image.h"
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#include "flags.h"
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#include "dataspec.h"
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#include "sector.h"
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#include "sectorset.h"
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#include "imagereader/imagereader.h"
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#include "fmt/format.h"
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std::map<std::string, ImageReader::Constructor> ImageReader::formats =
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{
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{".adf", ImageReader::createImgImageReader},
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{".d81", ImageReader::createImgImageReader},
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{".img", ImageReader::createImgImageReader},
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};
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static bool ends_with(const std::string& value, const std::string& ending)
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{
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if (ending.size() > value.size())
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return false;
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return std::equal(ending.rbegin(), ending.rend(), value.rbegin());
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}
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ImageReader::Constructor ImageReader::findConstructor(const ImageSpec& spec)
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{
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const auto& filename = spec.filename;
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for (const auto& e : formats)
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{
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if (ends_with(filename, e.first))
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return e.second;
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}
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return NULL;
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}
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std::unique_ptr<ImageReader> ImageReader::create(const ImageSpec& spec)
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{
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verifyImageSpec(spec);
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return findConstructor(spec)(spec);
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}
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void ImageReader::verifyImageSpec(const ImageSpec& spec)
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{
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if (!findConstructor(spec))
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Error() << "unrecognised image filename extension";
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}
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ImageReader::ImageReader(const ImageSpec& spec):
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spec(spec)
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{}
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