From 3334e477c184bba409a280b104e60cc7107a5a15 Mon Sep 17 00:00:00 2001
From: Josh Matthews <josh@joshmatthews.net>
Date: Wed, 1 Aug 2018 15:40:46 -0400
Subject: [PATCH] webgl: Mark zero-sized framebuffers as incomplete
 attachments.

---
 components/script/dom/webglframebuffer.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/components/script/dom/webglframebuffer.rs b/components/script/dom/webglframebuffer.rs
index f71a2104cf5..2d9e567d9bf 100644
--- a/components/script/dom/webglframebuffer.rs
+++ b/components/script/dom/webglframebuffer.rs
@@ -175,7 +175,11 @@ impl WebGLFramebuffer {
         self.size.set(fb_size);
 
         if has_c || has_z || has_zs || has_s {
-            self.status.set(constants::FRAMEBUFFER_COMPLETE);
+            if self.size.get().map_or(false, |(w, h)| w != 0 && h != 0) {
+                self.status.set(constants::FRAMEBUFFER_COMPLETE);
+            } else {
+                self.status.set(constants::FRAMEBUFFER_INCOMPLETE_ATTACHMENT);
+            }
         } else {
             self.status.set(constants::FRAMEBUFFER_UNSUPPORTED);
         }