+void Texture::set_max_anisotropy(float a)
+{
+ if(a<1.0f)
+ throw invalid_argument("Texture::set_max_anisotropy");
+ else if(a>1.0f)
+ static Require _req(EXT_texture_filter_anisotropic);
+ max_anisotropy = a;
+ if(EXT_texture_filter_anisotropic)
+ update_parameter(MAX_ANISOTROPY);
+}
+
+void Texture::set_wrap(TextureWrap w)
+{
+ set_wrap_s(w);
+ set_wrap_t(w);
+ if(EXT_texture3D)
+ set_wrap_r(w);
+}
+
+void Texture::set_wrap_s(TextureWrap w)
+{
+ wrap_s = w;
+ update_parameter(WRAP_S);
+}
+
+void Texture::set_wrap_t(TextureWrap w)
+{
+ wrap_t = w;
+ update_parameter(WRAP_T);
+}
+
+void Texture::set_wrap_r(TextureWrap w)
+{
+ static Require _req(EXT_texture3D);
+ wrap_r = w;
+ update_parameter(WRAP_R);
+}
+
+bool Texture::can_generate_mipmap()
+{
+ return (EXT_framebuffer_object || SGIS_generate_mipmap);
+}
+
+void Texture::set_generate_mipmap(bool gm)
+{
+ if(gm && !EXT_framebuffer_object)
+ static Require _req(SGIS_generate_mipmap);
+ gen_mipmap = gm;
+ if(!EXT_framebuffer_object)
+ update_parameter(GENERATE_MIPMAP);
+}
+
+void Texture::auto_generate_mipmap()
+{
+ // glGenerateMipmap is defined here
+ if(EXT_framebuffer_object)
+ {
+ if(ARB_direct_state_access)
+ glGenerateTextureMipmap(id);
+ else
+ glGenerateMipmap(target);
+ }
+}
+
+void Texture::set_compare_enabled(bool c)
+{
+ if(c)
+ static Require _req(ARB_shadow);
+ compare = c;
+ update_parameter(COMPARE);
+}
+
+void Texture::set_compare_func(Predicate f)
+{
+ static Require _req(ARB_shadow);
+ cmp_func = f;
+ update_parameter(COMPARE_FUNC);
+}
+
+void Texture::load_image(const string &fn, bool srgb)
+{
+ Graphics::Image img;
+ img.load_file(fn);
+
+ image(img, srgb);
+}
+
+void Texture::bind_to(unsigned i, bool legacy) const
+{
+ if(!id)
+ {
+ if(manager)
+ manager->resource_used(*this);
+ if(!id)
+ {
+ unbind_from(i);
+ return;
+ }
+ }
+
+ legacy = (legacy && is_legacy_target(target));
+
+ TexUnit &unit = TexUnit::get_unit(i);
+ const Texture *old = unit.get_texture();
+ bool old_legacy = unit.get_texture_legacy();
+ if(unit.set_texture(this, legacy))
+ {
+ if(manager)
+ manager->resource_used(*this);
+
+ if(ARB_direct_state_access && !old_legacy && (!unit.supports_legacy() || !legacy))
+ glBindTextureUnit(i, id);
+ else
+ {
+ unit.bind();
+ if(unit.supports_legacy())
+ {
+ if(old && old->target!=target && old_legacy)
+ glDisable(old->target);
+ if((!old || old->target!=target) && legacy)
+ glEnable(target);
+ }
+ glBindTexture(target, id);
+ }
+
+ if(dirty_params)
+ {
+ update_parameter(dirty_params);
+ dirty_params = 0;
+ }
+ }
+}
+
+const Texture *Texture::current(unsigned i)
+{
+ return TexUnit::get_unit(i).get_texture();
+}
+
+void Texture::unbind_from(unsigned i)
+{
+ TexUnit &unit = TexUnit::get_unit(i);
+ const Texture *cur = unit.get_texture();
+ bool legacy = unit.get_texture_legacy();
+ if(unit.set_texture(0))
+ {
+ if(ARB_direct_state_access && !legacy)
+ glBindTextureUnit(i, 0);
+ else
+ {
+ unit.bind();
+ glBindTexture(cur->target, 0);
+ if(unit.supports_legacy() && legacy)
+ glDisable(cur->target);
+ }
+ }
+}
+
+bool Texture::is_legacy_target(GLenum target)
+{
+ return target<GL_TEXTURE_1D_ARRAY;
+}
+
+
+Texture::Loader::Loader(Texture &t):
+ DataFile::CollectionObjectLoader<Texture>(t, 0)
+{
+ init();
+}
+
+Texture::Loader::Loader(Texture &t, Collection &c):
+ DataFile::CollectionObjectLoader<Texture>(t, &c)
+{
+ init();
+}
+
+void Texture::Loader::init()
+{
+ if(Resources *res = dynamic_cast<Resources *>(coll))
+ srgb = res->get_srgb_conversion();
+ else
+ srgb = false;
+
+ add("external_image", &Loader::external_image);
+ add("filter", &Loader::filter);
+ add("generate_mipmap", &Loader::generate_mipmap);
+ add("image_data", &Loader::image_data);
+ add("mag_filter", &Loader::mag_filter);
+ add("max_anisotropy", &Loader::max_anisotropy);
+ add("min_filter", &Loader::min_filter);
+ add("mipmap_levels", &Loader::mipmap_levels);
+ add("wrap", &Loader::wrap);
+ add("wrap_r", &Loader::wrap_r);
+ add("wrap_s", &Loader::wrap_s);
+ add("wrap_t", &Loader::wrap_t);
+}
+
+void Texture::Loader::external_image(const string &fn)
+{
+ Graphics::Image img;
+ RefPtr<IO::Seekable> io = get_collection().open_raw(fn);
+ img.load_io(*io);
+
+ obj.image(img, srgb);
+}
+
+void Texture::Loader::filter(TextureFilter f)