- image(0, fmt, UNSIGNED_BYTE, img.get_data());
+ image(0, fmt, UNSIGNED_BYTE, from_buffer ? 0 : img.get_data());
+}
+
+unsigned Texture2D::get_n_levels() const
+{
+ unsigned n = 0;
+ for(unsigned s=max(width, height); s; s>>=1, ++n) ;
+ return n;
+}
+
+void Texture2D::get_level_size(unsigned level, unsigned &w, unsigned &h) const
+{
+ w >>= level;
+ h >>= level;
+
+ if(!w && h)
+ w = 1;
+ else if(!h && w)
+ h = 1;
+}
+
+Resource::AsyncLoader *Texture2D::load(IO::Seekable &io, const Resources *res)
+{
+ AsyncLoader *ldr = new AsyncLoader(*this, io);
+ if(res)
+ ldr->set_srgb_conversion(res->get_srgb_conversion());
+ return ldr;
+}
+
+UInt64 Texture2D::get_data_size() const
+{
+ return id ? width*height*get_pixel_size(ifmt) : 0;
+}
+
+void Texture2D::unload()
+{
+ glDeleteTextures(1, &id);
+ id = 0;
+ // TODO check which params actually need refreshing
+ dirty_params = -1;