[mutter] egl: Add stream-related error descriptions

[Jonas Ådahl <jadahl src gnome org>]

commit 09fa27cd09164653811eeadaaf000b87f9574da4
Author: Miguel A. Vico <mvicomoya nvidia com>
Date:   Wed Feb 1 18:07:12 2017 -0800

    egl: Add stream-related error descriptions
    
    This change adds descriptions for the following errors to
    get_egl_error_str():
    
      - EGL_BAD_STREAM_KHR
      - EGL_BAD_STATE_KHR
      - EGL_BAD_DEVICE_EXT
      - EGL_BAD_OUTPUT_LAYER_EXT
    
    https://bugzilla.gnome.org/show_bug.cgi?id=779112

 src/backends/meta-egl.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/src/backends/meta-egl.c b/src/backends/meta-egl.c
index ca687c6..92613db 100644
--- a/src/backends/meta-egl.c
+++ b/src/backends/meta-egl.c
@@ -122,6 +122,17 @@ get_egl_error_str (EGLint error_number)
     case EGL_CONTEXT_LOST:
       return "A power management event has occurred. The application must destroy all contexts and 
reinitialise OpenGL ES state and objects to continue rendering. ";
       break;
+    case EGL_BAD_STREAM_KHR:
+      return "An EGLStreamKHR argument does not name a valid EGL stream.";
+      break;
+    case EGL_BAD_STATE_KHR:
+      return "An EGLStreamKHR argument is not in a valid state";
+      break;
+    case EGL_BAD_DEVICE_EXT:
+      return "An EGLDeviceEXT argument does not name a valid EGL device.";
+      break;
+    case EGL_BAD_OUTPUT_LAYER_EXT:
+      return "An EGLOutputLayerEXT argument does not name a valid EGL output layer.";
     default:
       return "Unknown error";
       break;