1 #include <msp/core/refptr.h>
2 #include <msp/io/file.h>
3 #include <msp/strings/format.h>
5 #include "imageloader.h"
7 #include "png/pngloader.h"
10 #include "jpeg/jpegloader.h"
13 #include "devil/devilloader.h"
16 #include "quartz/quartzloader.h"
24 ImageLoader::ImageLoader():
28 ImageLoader::~ImageLoader()
33 ImageLoader *ImageLoader::open_file(const string &fn)
37 RefPtr<IO::BufferedFile> file = new IO::BufferedFile(fn);
38 ImageLoader *loader = open_io(*file);
39 loader->source = file.release();
42 catch(const unsupported_image_format &e)
44 throw unsupported_image_format(format("%s: %s", fn, e.what()));
48 ImageLoader *ImageLoader::open_io(IO::Seekable &io)
50 Registry ®istry = get_registry();
53 registry.changed = false;
54 registry.loaders.sort(signature_size_compare);
57 if(registry.loaders.empty())
58 throw unsupported_image_format("no loaders");
60 vector<char> sig_buf(registry.loaders.back()->get_signature_size());
61 unsigned sig_len = io.read(&sig_buf[0], sig_buf.size());
62 string signature(sig_buf.begin(), sig_buf.end());
64 ImageLoader *loader = 0;
65 for(list<RegisterBase *>::const_iterator i=registry.loaders.begin(); (!loader && i!=registry.loaders.end()); ++i)
66 if((*i)->detect(signature))
67 loader = (*i)->create(io);
69 io.seek(0, IO::S_BEG);
74 for(unsigned i=0; i<sig_len; ++i)
78 sig_hex += format("%02X", static_cast<unsigned char>(sig_buf[i]));
80 throw unsupported_image_format(sig_hex);
86 void ImageLoader::load(Image::Data &data)
92 ImageLoader::Registry &ImageLoader::get_registry()
94 static Registry registry;
95 static bool initialized = false;
99 register_loader<BmpLoader>();
101 register_loader<PngLoader>();
104 register_loader<JpegLoader>();
107 register_loader<DevilLoader>();
110 register_loader<QuartzLoader>();
116 bool ImageLoader::signature_size_compare(RegisterBase *r1, RegisterBase *r2)
118 return r1->get_signature_size()<r2->get_signature_size();
122 ImageLoader::Registry::Registry():
126 ImageLoader::Registry::~Registry()
128 for(list<RegisterBase *>::iterator i=loaders.begin(); i!=loaders.end(); ++i)
132 } // namespace Graphics