Fall-back to OpenGL renderer if mac hardware doesn't support Metal

BUG=webrtc:7782 Review-Url: https://codereview.webrtc.org/2927983002 Cr-Commit-Position: refs/heads/master@{#18539}
2017-06-12 07:32:02 -07:00
parent 84b4d2c1c2
commit 42742a56ef
3 changed files with 6 additions and 5 deletions
--- a/webrtc/sdk/objc/Framework/Classes/Metal/RTCMTLNSVideoView.m
+++ b/webrtc/sdk/objc/Framework/Classes/Metal/RTCMTLNSVideoView.m
@ -50,7 +50,7 @@
 #pragma mark - Private

 + (BOOL)isMetalAvailable {
-  return YES;
+  return [MTLCopyAllDevices() count] > 0;
 }

 - (void)configure {