Update examples.

examples/simple_playback.c

@@ -29,6 +29,12 @@ int main(int argc, char** argv)
         printf("Not a valid WAV file.");
         return -2;
     }
+
+    mal_context context;
+    if (mal_context_init(NULL, 0, &context) != MAL_SUCCESS) {
+        printf("Failed to initialize context.");
+        return -3;
+    }
     
     // In this example we use the default playback device with a default buffer size and period count.
 	mal_device_config config;
@@ -43,10 +49,11 @@ int main(int argc, char** argv)
     config.onLogCallback  = NULL;
 	
     mal_device device;
-    if (mal_device_init(&device, mal_device_type_playback, NULL, &config, &wav) != MAL_SUCCESS) {
+    if (mal_device_init(&context, mal_device_type_playback, NULL, &config, &wav, &device) != MAL_SUCCESS) {
         printf("Failed to open playback device.");
+        mal_context_uninit(&context);
         drwav_uninit(&wav);
-        return -3;
+        return -4;
     }
     mal_device_start(&device);
     
@@ -54,6 +61,7 @@ int main(int argc, char** argv)
     getchar();
     
     mal_device_uninit(&device);
+    mal_context_uninit(&context);
     drwav_uninit(&wav);
     
     return 0;