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Map libvips file loader nicknames to sharp image types

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Use stable API rather than internal class names, reduces complexity
This commit is contained in:
Lovell Fuller 2020-08-09 09:38:47 +01:00
parent 90a57e7664
commit 8da30f0b41
1 changed files with 34 additions and 50 deletions
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84
src/common.cc
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@ -17,6 +17,7 @@
#include <string.h>
#include <vector>
#include <queue>
#include <map>
#include <mutex> // NOLINT(build/c++11)
#include <napi.h>
@ -173,33 +174,42 @@ namespace sharp {
return id;
}
std::map<std::string, ImageType> loaderToType = {
{ "jpegload", ImageType::JPEG },
{ "jpegload_buffer", ImageType::JPEG },
{ "pngload", ImageType::PNG },
{ "pngload_buffer", ImageType::PNG },
{ "webpload", ImageType::WEBP },
{ "webpload_buffer", ImageType::WEBP },
{ "tiffload", ImageType::TIFF },
{ "tiffload_buffer", ImageType::TIFF },
{ "gifload", ImageType::GIF },
{ "gifload_buffer", ImageType::GIF },
{ "svgload", ImageType::SVG },
{ "svgload_buffer", ImageType::SVG },
{ "heifload", ImageType::HEIF },
{ "heifload_buffer", ImageType::HEIF },
{ "pdfload", ImageType::PDF },
{ "pdfload_buffer", ImageType::PDF },
{ "magickload", ImageType::MAGICK },
{ "magickload_buffer", ImageType::MAGICK },
{ "openslideload", ImageType::OPENSLIDE },
{ "ppmload", ImageType::PPM },
{ "fitsload", ImageType::FITS },
{ "vipsload", ImageType::VIPS },
{ "rawload", ImageType::RAW }
};
/*
Determine image format of a buffer.
*/
ImageType DetermineImageType(void *buffer, size_t const length) {
ImageType imageType = ImageType::UNKNOWN;
char const *load = vips_foreign_find_load_buffer(buffer, length);
if (load != NULL) {
std::string const loader = load;
if (EndsWith(loader, "JpegBuffer")) {
imageType = ImageType::JPEG;
} else if (EndsWith(loader, "PngBuffer")) {
imageType = ImageType::PNG;
} else if (EndsWith(loader, "WebpBuffer")) {
imageType = ImageType::WEBP;
} else if (EndsWith(loader, "TiffBuffer")) {
imageType = ImageType::TIFF;
} else if (EndsWith(loader, "GifBuffer")) {
imageType = ImageType::GIF;
} else if (EndsWith(loader, "SvgBuffer")) {
imageType = ImageType::SVG;
} else if (EndsWith(loader, "HeifBuffer")) {
imageType = ImageType::HEIF;
} else if (EndsWith(loader, "PdfBuffer")) {
imageType = ImageType::PDF;
} else if (EndsWith(loader, "MagickBuffer") ||
EndsWith(loader, "Magick7Buffer")) {
imageType = ImageType::MAGICK;
if (load != nullptr) {
auto it = loaderToType.find(vips_nickname_find(g_type_from_name(load)));
if (it != loaderToType.end()) {
imageType = it->second;
}
}
return imageType;
@ -212,35 +222,9 @@ namespace sharp {
ImageType imageType = ImageType::UNKNOWN;
char const *load = vips_foreign_find_load(file);
if (load != nullptr) {
std::string const loader = load;
if (EndsWith(loader, "JpegFile")) {
imageType = ImageType::JPEG;
} else if (EndsWith(loader, "PngFile")) {
imageType = ImageType::PNG;
} else if (EndsWith(loader, "WebpFile")) {
imageType = ImageType::WEBP;
} else if (EndsWith(loader, "Openslide")) {
imageType = ImageType::OPENSLIDE;
} else if (EndsWith(loader, "TiffFile")) {
imageType = ImageType::TIFF;
} else if (EndsWith(loader, "GifFile")) {
imageType = ImageType::GIF;
} else if (EndsWith(loader, "SvgFile")) {
imageType = ImageType::SVG;
} else if (EndsWith(loader, "HeifFile")) {
imageType = ImageType::HEIF;
} else if (EndsWith(loader, "PdfFile")) {
imageType = ImageType::PDF;
} else if (EndsWith(loader, "Ppm")) {
imageType = ImageType::PPM;
} else if (EndsWith(loader, "Fits")) {
imageType = ImageType::FITS;
} else if (EndsWith(loader, "Vips")) {
imageType = ImageType::VIPS;
} else if (EndsWith(loader, "Magick") ||
EndsWith(loader, "MagickFile") ||
EndsWith(loader, "Magick7File")) {
imageType = ImageType::MAGICK;
auto it = loaderToType.find(vips_nickname_find(g_type_from_name(load)));
if (it != loaderToType.end()) {
imageType = it->second;
}
} else {
if (EndsWith(vips::VError().what(), " does not exist\n")) {