diff options
Diffstat (limited to 'components/script/dom/webglrenderingcontext.rs')
| -rw-r--r-- | components/script/dom/webglrenderingcontext.rs | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/components/script/dom/webglrenderingcontext.rs b/components/script/dom/webglrenderingcontext.rs index 70b98ce06cd..4223598a985 100644 --- a/components/script/dom/webglrenderingcontext.rs +++ b/components/script/dom/webglrenderingcontext.rs @@ -83,6 +83,8 @@ pub struct WebGLRenderingContext { bound_buffer_array: MutNullableHeap<JS<WebGLBuffer>>, bound_buffer_element_array: MutNullableHeap<JS<WebGLBuffer>>, current_program: MutNullableHeap<JS<WebGLProgram>>, + #[ignore_heap_size_of = "Because it's small"] + current_vertex_attrib_0: Cell<(f32, f32, f32, f32)>, } impl WebGLRenderingContext { @@ -111,6 +113,7 @@ impl WebGLRenderingContext { bound_buffer_array: MutNullableHeap::new(None), bound_buffer_element_array: MutNullableHeap::new(None), current_program: MutNullableHeap::new(None), + current_vertex_attrib_0: Cell::new((0f32, 0f32, 0f32, 1f32)), } }) } @@ -175,6 +178,10 @@ impl WebGLRenderingContext { return self.webgl_error(InvalidValue); } + if indx == 0 { + self.current_vertex_attrib_0.set((x, y, z, w)) + } + self.ipc_renderer .send(CanvasMsg::WebGL(WebGLCommand::VertexAttrib(indx, x, y, z, w))) .unwrap(); @@ -1138,6 +1145,38 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext { }) } + #[allow(unsafe_code)] + // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.9 + fn GetVertexAttrib(&self, cx: *mut JSContext, index: u32, pname: u32) -> JSVal { + if index == 0 && pname == constants::CURRENT_VERTEX_ATTRIB { + let mut result = RootedValue::new(cx, UndefinedValue()); + let (x, y, z, w) = self.current_vertex_attrib_0.get(); + let attrib = vec![x, y, z, w]; + unsafe { + attrib.to_jsval(cx, result.handle_mut()); + } + return result.ptr + } + + let (sender, receiver) = ipc::channel().unwrap(); + self.ipc_renderer.send(CanvasMsg::WebGL(WebGLCommand::GetVertexAttrib(index, pname, sender))).unwrap(); + + match handle_potential_webgl_error!(self, receiver.recv().unwrap(), WebGLParameter::Invalid) { + WebGLParameter::Int(val) => Int32Value(val), + WebGLParameter::Bool(val) => BooleanValue(val), + WebGLParameter::String(_) => panic!("Vertex attrib should not be string"), + WebGLParameter::Float(_) => panic!("Vertex attrib should not be float"), + WebGLParameter::FloatArray(val) => { + let mut result = RootedValue::new(cx, UndefinedValue()); + unsafe { + val.to_jsval(cx, result.handle_mut()); + } + result.ptr + } + WebGLParameter::Invalid => NullValue(), + } + } + // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3 fn Hint(&self, target: u32, mode: u32) { if target != constants::GENERATE_MIPMAP_HINT { |