Move ANGLE name shenanigans to WebGL thread

3 files changed, 50 insertions, 51 deletions

diff --git a/components/canvas/webgl_thread.rs b/components/canvas/webgl_thread.rs
index 3bfe49125ba..5fb1fad4eba 100644
--- a/components/canvas/webgl_thread.rs
+++ b/components/canvas/webgl_thread.rs
@@ -646,8 +646,9 @@ impl WebGLImpl {
                 ctx.gl().attach_shader(program_id.get(), shader_id.get()),
             WebGLCommand::DetachShader(program_id, shader_id) =>
                 ctx.gl().detach_shader(program_id.get(), shader_id.get()),
-            WebGLCommand::BindAttribLocation(program_id, index, ref name) =>
-                ctx.gl().bind_attrib_location(program_id.get(), index, name),
+            WebGLCommand::BindAttribLocation(program_id, index, ref name) => {
+                ctx.gl().bind_attrib_location(program_id.get(), index, &to_name_in_compiled_shader(name))
+            }
             WebGLCommand::BlendColor(r, g, b, a) =>
                 ctx.gl().blend_color(r, g, b, a),
             WebGLCommand::BlendEquation(mode) =>
@@ -1100,11 +1101,13 @@ impl WebGLImpl {
         chan.send(parameter).unwrap();
     }
 
-    fn uniform_location(gl: &gl::Gl,
-                        program_id: WebGLProgramId,
-                        name: &str,
-                        chan: &WebGLSender<Option<i32>>) {
-        let location = gl.get_uniform_location(program_id.get(), name);
+    fn uniform_location(
+        gl: &gl::Gl,
+        program_id: WebGLProgramId,
+        name: &str,
+        chan: &WebGLSender<Option<i32>>,
+    ) {
+        let location = gl.get_uniform_location(program_id.get(), &to_name_in_compiled_shader(name));
         let location = if location == -1 {
             None
         } else {
@@ -1223,3 +1226,39 @@ impl WebGLImpl {
         gl.compile_shader(shader_id.get());
     }
 }
+
+/// ANGLE adds a `_u` prefix to variable names:
+///
+/// https://chromium.googlesource.com/angle/angle/+/855d964bd0d05f6b2cb303f625506cf53d37e94f
+///
+/// To avoid hard-coding this we would need to use the `sh::GetAttributes` and `sh::GetUniforms`
+/// API to look up the `x.name` and `x.mappedName` members.
+const ANGLE_NAME_PREFIX: &'static str = "_u";
+
+fn to_name_in_compiled_shader(s: &str) -> String {
+    map_dot_separated(s, |s, mapped| {
+        mapped.push_str(ANGLE_NAME_PREFIX);
+        mapped.push_str(s);
+    })
+}
+
+fn from_name_in_compiled_shader(s: &str) -> String {
+    map_dot_separated(s, |s, mapped| {
+        mapped.push_str(if s.starts_with(ANGLE_NAME_PREFIX) {
+            &s[ANGLE_NAME_PREFIX.len()..]
+        } else {
+            s
+        })
+    })
+}
+
+fn map_dot_separated<F: Fn(&str, &mut String)>(s: &str, f: F) -> String {
+    let mut iter = s.split('.');
+    let mut mapped = String::new();
+    f(iter.next().unwrap(), &mut mapped);
+    for s in iter {
+        mapped.push('.');
+        f(s, &mut mapped);
+    }
+    mapped
+}
diff --git a/components/canvas_traits/webgl.rs b/components/canvas_traits/webgl.rs
index 451a3d19f19..0d9046656d0 100644
--- a/components/canvas_traits/webgl.rs
+++ b/components/canvas_traits/webgl.rs
@@ -589,39 +589,3 @@ parameters! {
         }),
     }
 }
-
-/// ANGLE adds a `_u` prefix to variable names:
-///
-/// https://chromium.googlesource.com/angle/angle/+/855d964bd0d05f6b2cb303f625506cf53d37e94f
-///
-/// To avoid hard-coding this we would need to use the `sh::GetAttributes` and `sh::GetUniforms`
-/// API to look up the `x.name` and `x.mappedName` members.
-const ANGLE_NAME_PREFIX: &'static str = "_u";
-
-pub fn to_name_in_compiled_shader(s: &str) -> String {
-    map_dot_separated(s, |s, mapped| {
-        mapped.push_str(ANGLE_NAME_PREFIX);
-        mapped.push_str(s);
-    })
-}
-
-pub fn from_name_in_compiled_shader(s: &str) -> String {
-    map_dot_separated(s, |s, mapped| {
-        mapped.push_str(if s.starts_with(ANGLE_NAME_PREFIX) {
-            &s[ANGLE_NAME_PREFIX.len()..]
-        } else {
-            s
-        })
-    })
-}
-
-fn map_dot_separated<F: Fn(&str, &mut String)>(s: &str, f: F) -> String {
-    let mut iter = s.split('.');
-    let mut mapped = String::new();
-    f(iter.next().unwrap(), &mut mapped);
-    for s in iter {
-        mapped.push('.');
-        f(s, &mut mapped);
-    }
-    mapped
-}
diff --git a/components/script/dom/webglprogram.rs b/components/script/dom/webglprogram.rs
index e2a6f8fcf8d..f0d86b4bc69 100644
--- a/components/script/dom/webglprogram.rs
+++ b/components/script/dom/webglprogram.rs
@@ -3,8 +3,8 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 // https://www.khronos.org/registry/webgl/specs/latest/1.0/webgl.idl
-use canvas_traits::webgl::{ActiveAttribInfo, ActiveUniformInfo, WebGLCommand, WebGLError, WebGLMsgSender};
-use canvas_traits::webgl::{WebGLProgramId, WebGLResult, to_name_in_compiled_shader, webgl_channel};
+use canvas_traits::webgl::{ActiveAttribInfo, ActiveUniformInfo, WebGLCommand, WebGLError};
+use canvas_traits::webgl::{WebGLMsgSender, WebGLProgramId, WebGLResult, webgl_channel};
 use dom::bindings::cell::DomRefCell;
 use dom::bindings::codegen::Bindings::WebGLProgramBinding;
 use dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderingContextConstants as constants;
@@ -248,10 +248,8 @@ impl WebGLProgram {
             return Err(WebGLError::InvalidOperation);
         }
 
-        let name = to_name_in_compiled_shader(&name);
-
         self.renderer
-            .send(WebGLCommand::BindAttribLocation(self.id, index, name))
+            .send(WebGLCommand::BindAttribLocation(self.id, index, name.into()))
             .unwrap();
         Ok(())
     }
@@ -326,11 +324,9 @@ impl WebGLProgram {
             return Ok(None);
         }
 
-        let name = to_name_in_compiled_shader(&name);
-
         let (sender, receiver) = webgl_channel().unwrap();
         self.renderer
-            .send(WebGLCommand::GetUniformLocation(self.id, name, sender))
+            .send(WebGLCommand::GetUniformLocation(self.id, name.into(), sender))
             .unwrap();
         Ok(receiver.recv().unwrap())
     }