webgl: Do validation that the framebuffer is complete for FBO operations.

Given that we can't make a complete FBO yet, just return false from
the status check.

1 files changed, 7 insertions, 0 deletions

diff --git a/components/script/dom/webglframebuffer.rs b/components/script/dom/webglframebuffer.rs
index 6e426fa0969..cd212d644bf 100644
--- a/components/script/dom/webglframebuffer.rs
+++ b/components/script/dom/webglframebuffer.rs
@@ -5,6 +5,7 @@
 // https://www.khronos.org/registry/webgl/specs/latest/1.0/webgl.idl
 use canvas_traits::CanvasMsg;
 use dom::bindings::codegen::Bindings::WebGLFramebufferBinding;
+use dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderingContextConstants as constants;
 use dom::bindings::global::GlobalRef;
 use dom::bindings::js::Root;
 use dom::bindings::reflector::reflect_dom_object;
@@ -79,6 +80,12 @@ impl WebGLFramebuffer {
         self.is_deleted.get()
     }
 
+    pub fn check_status(&self) -> u32 {
+        // Until we build support for attaching renderbuffers or
+        // textures, all user FBOs are incomplete.
+        return constants::FRAMEBUFFER_UNSUPPORTED;
+    }
+
     pub fn target(&self) -> Option<u32> {
         self.target.get()
     }