From 90799afe90c17515640bad98a2c042c5b73c2e57 Mon Sep 17 00:00:00 2001
From: Sam Hocevar <sam@hocevar.net>
Date: Thu, 2 Aug 2012 21:23:07 +0000
Subject: [PATCH] core: better EGL error reporting.

---
 src/eglapp.cpp | 29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/src/eglapp.cpp b/src/eglapp.cpp
index de751cbe..c685ade7 100644
--- a/src/eglapp.cpp
+++ b/src/eglapp.cpp
@@ -184,7 +184,34 @@ EglApp::EglApp(char const *title, ivec2 res, float fps) :
 #   endif
     if (data->egl_surf == EGL_NO_SURFACE)
     {
-        Log::Error("cannot create EGL surface (%i)\n", eglGetError());
+        switch (eglGetError())
+        {
+        case EGL_BAD_DISPLAY:
+            Log::Error("missing EGL display connection\n");
+            break;
+        case EGL_NOT_INITIALIZED:
+            Log::Error("EGL display not initialized\n");
+            break;
+        case EGL_BAD_CONFIG:
+            Log::Error("invalid EGL configuration\n");
+            break;
+        case EGL_BAD_NATIVE_WINDOW:
+            Log::Error("invalid EGL native window\n");
+            break;
+        case EGL_BAD_ATTRIBUTE:
+            Log::Error("invalid EGL window attribute\n");
+            break;
+        case EGL_BAD_ALLOC:
+            Log::Error("cannot allocate EGL surface\n");
+            break;
+        case EGL_BAD_MATCH:
+            Log::Error("unsupported EGL window\n");
+            break;
+        default:
+            Log::Error("cannot create EGL surface (%i)\n", eglGetError());
+            break;
+        }
+
         exit(EXIT_FAILURE);
     }