From 9c228e76251b875b08117957daa670a94cabd163 Mon Sep 17 00:00:00 2001
From: Chris Robinson <chris.kcat@gmail.com>
Date: Thu, 19 Nov 2009 18:25:29 -0800
Subject: [PATCH] Be clearer if device opening or context setup fails

---
 examples/openal-info.c | 30 ++++++++++++++++++++----------
 1 file changed, 20 insertions(+), 10 deletions(-)

diff --git a/examples/openal-info.c b/examples/openal-info.c
index daf083b2..bd3b5060 100644
--- a/examples/openal-info.c
+++ b/examples/openal-info.c
@@ -155,15 +155,14 @@ static void printALCInfo (void)
     else
         printf("No device enumeration available\n");
 
+    printf("Default device: %s\n",
+           alcGetString(NULL, ALC_DEFAULT_DEVICE_SPECIFIER));
+    printf("Default capture device: %s\n",
+           alcGetString(NULL, ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER));
+
     device = alcGetContextsDevice(alcGetCurrentContext());
     checkForErrors();
 
-    printf("Default device: %s\n",
-           alcGetString(device, ALC_DEFAULT_DEVICE_SPECIFIER));
-
-    printf("Default capture device: %s\n",
-           alcGetString(device, ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER));
-
     alcGetIntegerv(device, ALC_MAJOR_VERSION, 1, &major);
     alcGetIntegerv(device, ALC_MINOR_VERSION, 1, &minor);
     checkForErrors();
@@ -276,10 +275,21 @@ static void printEFXInfo(void)
 
 int main()
 {
-    ALCdevice *device = alcOpenDevice(NULL);
-    ALCcontext *context = alcCreateContext(device, NULL);
-    alcMakeContextCurrent(context);
-    checkForErrors();
+    ALCdevice *device;
+    ALCcontext *context;
+
+    device = alcOpenDevice(NULL);
+    if(!device)
+    {
+        printf("Failed to open a device!\n");
+        exit(EXIT_FAILURE);
+    }
+    context = alcCreateContext(device, NULL);
+    if(!context || alcMakeContextCurrent(context) == ALC_FALSE)
+    {
+        printf("Failed to set a context!\n");
+        exit(EXIT_FAILURE);
+    }
 
     printALCInfo();
     printALInfo();