+ obj.storage(fmt, w, h, l);
+}
+
+
+Texture2D::AsyncLoader::AsyncLoader(Texture2D &t, IO::Seekable &i):
+ texture(t),
+ io(i),
+ pixel_buffer(PIXEL_UNPACK_BUFFER),
+ mapped_address(0),
+ img_loader(Graphics::ImageLoader::open_io(io)),
+ phase(0)
+{ }
+
+Texture2D::AsyncLoader::~AsyncLoader()
+{
+ if(mapped_address)
+ pixel_buffer.unmap();
+ delete img_loader;
+}
+
+bool Texture2D::AsyncLoader::needs_sync() const
+{
+ return phase%2;
+}
+
+bool Texture2D::AsyncLoader::process()
+{
+ if(phase==0)
+ {
+ image.load_headers(*img_loader);
+ n_bytes = image.get_stride()*image.get_height();
+ }
+ else if(phase==1)
+ {
+ pixel_buffer.storage(n_bytes);
+ mapped_address = reinterpret_cast<char *>(pixel_buffer.map());
+ }
+ else if(phase==2)
+ image.load_into(*img_loader, mapped_address);
+ else if(phase==3)
+ {
+ Bind _bind_buf(pixel_buffer, PIXEL_UNPACK_BUFFER);
+ mapped_address = 0;
+ if(!pixel_buffer.unmap())
+ {
+ phase = 1;
+ return false;
+ }
+
+ if(!texture.id)
+ {
+ if(ARB_direct_state_access)
+ glCreateTextures(texture.target, 1, &texture.id);
+ else
+ glGenTextures(1, &texture.id);
+ }
+ texture.image(image, 0, true);
+ }
+
+ ++phase;
+ return phase>3;