Implement EXT_texture_filter_anisotropic

2 files changed, 55 insertions, 0 deletions

diff --git a/components/script/dom/webgl_extensions/ext/exttexturefilteranisotropic.rs b/components/script/dom/webgl_extensions/ext/exttexturefilteranisotropic.rs
new file mode 100644
index 00000000000..203f4da6251
--- /dev/null
+++ b/components/script/dom/webgl_extensions/ext/exttexturefilteranisotropic.rs
@@ -0,0 +1,54 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+use canvas_traits::webgl::WebGLVersion;
+use dom::bindings::codegen::Bindings::EXTTextureFilterAnisotropicBinding;
+use dom::bindings::codegen::Bindings::EXTTextureFilterAnisotropicBinding::EXTTextureFilterAnisotropicConstants;
+use dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use dom::bindings::root::DomRoot;
+use dom::webglrenderingcontext::WebGLRenderingContext;
+use dom_struct::dom_struct;
+use super::{WebGLExtension, WebGLExtensions, WebGLExtensionSpec};
+
+#[dom_struct]
+pub struct EXTTextureFilterAnisotropic {
+    reflector_: Reflector,
+}
+
+impl EXTTextureFilterAnisotropic {
+    fn new_inherited() -> EXTTextureFilterAnisotropic {
+        Self {
+            reflector_: Reflector::new(),
+        }
+    }
+}
+
+impl WebGLExtension for EXTTextureFilterAnisotropic {
+    type Extension = EXTTextureFilterAnisotropic;
+
+    fn new(ctx: &WebGLRenderingContext) -> DomRoot<Self> {
+        reflect_dom_object(
+            Box::new(Self::new_inherited()),
+            &*ctx.global(),
+            EXTTextureFilterAnisotropicBinding::Wrap,
+        )
+    }
+
+    fn spec() -> WebGLExtensionSpec {
+        WebGLExtensionSpec::Specific(WebGLVersion::WebGL1)
+    }
+
+    fn is_supported(ext: &WebGLExtensions) -> bool {
+        ext.supports_gl_extension("GL_EXT_texture_filter_anisotropic")
+    }
+
+    fn enable(ext: &WebGLExtensions) {
+        ext.enable_get_tex_parameter_name(EXTTextureFilterAnisotropicConstants::TEXTURE_MAX_ANISOTROPY_EXT);
+        ext.enable_get_parameter_name(EXTTextureFilterAnisotropicConstants::MAX_TEXTURE_MAX_ANISOTROPY_EXT);
+    }
+
+    fn name() -> &'static str {
+        "EXT_texture_filter_anisotropic"
+    }
+}
diff --git a/components/script/dom/webgl_extensions/ext/mod.rs b/components/script/dom/webgl_extensions/ext/mod.rs
index b4b58fd10e1..e0c7b1f189a 100644
--- a/components/script/dom/webgl_extensions/ext/mod.rs
+++ b/components/script/dom/webgl_extensions/ext/mod.rs
@@ -6,6 +6,7 @@ use dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderi
 use super::{ext_constants, WebGLExtension, WebGLExtensions, WebGLExtensionSpec};
 
 pub mod extshadertexturelod;
+pub mod exttexturefilteranisotropic;
 pub mod oeselementindexuint;
 pub mod oesstandardderivatives;
 pub mod oestexturefloat;