#include <msp/core/refptr.h>
#include <msp/io/file.h>
#include <msp/strings/format.h>
+#include "bmploader.h"
#include "imageloader.h"
#ifdef WITH_LIBPNG
#include "png/pngloader.h"
#endif
+#ifdef WITH_LIBJPEG
+#include "jpeg/jpegloader.h"
+#endif
#ifdef WITH_DEVIL
#include "devil/devilloader.h"
#endif
+#ifdef WITH_QUARTZ
+#include "quartz/quartzloader.h"
+#endif
using namespace std;
{
try
{
- RefPtr<IO::File> file = new IO::BufferedFile(fn);
+ RefPtr<IO::BufferedFile> file = new IO::BufferedFile(fn);
ImageLoader *loader = open_io(*file);
loader->source = file.release();
return loader;
}
}
-ImageLoader *ImageLoader::open_io(IO::Base &io)
+ImageLoader *ImageLoader::open_io(IO::Seekable &io)
{
- char sig_buf[8];
- unsigned sig_len = io.read(sig_buf, sizeof(sig_buf));
- string sig(sig_buf, sig_len);
+ Registry ®istry = get_registry();
+ if(registry.changed)
+ {
+ registry.changed = false;
+ registry.loaders.sort(signature_size_compare);
+ }
+
+ if(registry.loaders.empty())
+ throw unsupported_image_format("no loaders");
+
+ vector<char> sig_buf(registry.loaders.back()->get_signature_size());
+ unsigned sig_len = io.read(&sig_buf[0], sig_buf.size());
+ string signature(sig_buf.begin(), sig_buf.end());
- // TODO register loader classes automatically
ImageLoader *loader = 0;
- if(0)
- ;
-#ifdef WITH_LIBPNG
- else if(PngLoader::detect(sig))
- loader = new PngLoader(io, sig);
-#endif
-#ifdef WITH_DEVIL
- else if(DevilLoader::detect(sig))
- loader = new DevilLoader(io, sig);
-#endif
- else
+ for(list<RegisterBase *>::const_iterator i=registry.loaders.begin(); (!loader && i!=registry.loaders.end()); ++i)
+ if((*i)->detect(signature))
+ loader = (*i)->create(io);
+
+ io.seek(0, IO::S_BEG);
+
+ if(!loader)
{
string sig_hex;
for(unsigned i=0; i<sig_len; ++i)
return loader;
}
+void ImageLoader::load(Image::Data &data)
+{
+ load_headers(data);
+ load_data(data);
+}
+
+ImageLoader::Registry &ImageLoader::get_registry()
+{
+ static Registry registry;
+ static bool initialized = false;
+ if(!initialized)
+ {
+ initialized = true;
+ register_loader<BmpLoader>();
+#ifdef WITH_LIBPNG
+ register_loader<PngLoader>();
+#endif
+#ifdef WITH_LIBJPEG
+ register_loader<JpegLoader>();
+#endif
+#ifdef WITH_DEVIL
+ register_loader<DevilLoader>();
+#endif
+#ifdef WITH_QUARTZ
+ register_loader<QuartzLoader>();
+#endif
+ }
+ return registry;
+}
+
+bool ImageLoader::signature_size_compare(RegisterBase *r1, RegisterBase *r2)
+{
+ return r1->get_signature_size()<r2->get_signature_size();
+}
+
+
+ImageLoader::Registry::Registry():
+ changed(false)
+{ }
+
+ImageLoader::Registry::~Registry()
+{
+ for(list<RegisterBase *>::iterator i=loaders.begin(); i!=loaders.end(); ++i)
+ delete *i;
+}
+
} // namespace Graphics
} // namespace Msp