Added audio standalone sample

examples/audio_standalone.c

@@ -0,0 +1,74 @@
+/*******************************************************************************************
+*
+*   raylib [audio] example - Using audio module as standalone module
+*
+*   NOTE: This example does not require any graphic device, it can run directly on console.
+*
+*   [audio] module requires some external libs:
+*       OpenAL Soft - Audio device management lib (http://kcat.strangesoft.net/openal.html)
+*       stb_vorbis - Ogg audio files loading (http://www.nothings.org/stb_vorbis/)
+*       jar_xm - XM module file loading
+*       jar_mod - MOD audio file loading
+*
+*   Compile audio module using:
+*   gcc -c audio.c stb_vorbis.c -DAUDIO_STANDALONE
+*
+*   Compile example using:
+*   gcc -o $(NAME_PART).exe $(FILE_NAME) audio.o stb_vorbis.o -lopenal32 -std=c99
+*
+*   This example has been created using raylib 1.5 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Copyright (c) 2015 Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+#include <stdio.h>
+#include <conio.h>      // Windows only, no stardard library
+
+#include "audio.h"
+
+#define KEY_ESCAPE  27
+
+int main()
+{
+    unsigned char key;
+    
+    InitAudioDevice();
+    
+    Sound fxWav = LoadSound("resources/audio/weird.wav");         // Load WAV audio file
+    Sound fxOgg = LoadSound("resources/audio/tanatana.ogg");      // Load OGG audio file
+    
+    PlayMusicStream(0, "resources/audio/guitar_noodling.ogg");
+
+    printf("\nPress s or d to play sounds...\n");
+    
+    while (key != KEY_ESCAPE)
+    {
+        if (kbhit()) key = getch();
+
+        if (key == 's')
+        {
+            PlaySound(fxWav);
+            key = 0;
+        }
+        
+        if (key == 'd')
+        {
+            PlaySound(fxOgg);
+            key = 0;
+        }
+        
+        UpdateMusicStream(0);
+    }
+    
+    UnloadSound(fxWav);     // Unload sound data
+    UnloadSound(fxOgg);     // Unload sound data
+    
+    CloseAudioDevice();
+    
+    printf("\n\nPress ENTER to close...");
+    getchar();
+
+    return 0;
+}

src/audio.h

@@ -62,17 +62,16 @@
 
 // Sound source type
 typedef struct Sound {
-    unsigned int source;
+    unsigned int source;    // Sound audio source id
-    unsigned int buffer;
+    unsigned int buffer;    // Sound audio buffer id
-    AudioError error; // if there was any error during the creation or use of this Sound
 } Sound;
 
 // Wave type, defines audio wave data
 typedef struct Wave {
     void *data;                 // Buffer data pointer
     unsigned int dataSize;      // Data size in bytes
-    unsigned int sampleRate;
+    unsigned int sampleRate;    // Samples per second to be played
-    short bitsPerSample;
+    short bitsPerSample;        // Sample size in bits
     short channels;
 } Wave;