Add error checking to Audio API

src/AssetManager.c

@@ -224,7 +224,8 @@ const i32 asset_loadTTFont(AssetManager *assetManager, MemoryArena *arena,
                            const char *filePath)
 {
 	PlatformFileRead fontFileRead = {0};
-	platform_readFileToBuffer(arena, filePath, &fontFileRead);
+	i32 result = platform_readFileToBuffer(arena, filePath, &fontFileRead);
+	if (result) return result;
 
 	stbtt_fontinfo fontInfo = {0};
 	stbtt_InitFont(&fontInfo, fontFileRead.buffer,

src/Audio.c

@@ -134,9 +134,19 @@ INTERNAL i32 rendererAcquire(AudioManager *audioManager,
 	    AUDIO_NO_FREE_SOURCE)
 	{
 		// TODO(doyle): Error messaging return paths
+		DEBUG_LOG("rendererAcquire(): Failed to acquire free source, all busy");
 		return -1;
 	}
 
+	u32 checkSource = getSourceId(audioManager, audioRenderer);
+	if (alIsSource(checkSource) == AL_TRUE)
+	{
+		DEBUG_LOG(
+		    "rendererAcquire(): Renderer has not been released before "
+		    "acquiring, force release by stopping stream");
+		audio_streamStopVorbis(audioManager, audioRenderer);
+	}
+
 	/* Assign a vacant source slot to renderer */
 	audioRenderer->sourceIndex = vacantSource;
 
@@ -156,18 +166,35 @@ INTERNAL i32 rendererAcquire(AudioManager *audioManager,
 	return 0;
 }
 
-INTERNAL void rendererRelease(AudioManager *audioManager,
+INTERNAL const i32 rendererRelease(AudioManager *audioManager,
                              AudioRenderer *audioRenderer)
 {
 
+	i32 result = 0;
 	u32 alSourceId = getSourceId(audioManager, audioRenderer);
+	if (alIsSource(alSourceId) == AL_FALSE)
+	{
+		DEBUG_LOG(
+		    "rendererRelease(): Trying to release invalid source, early exit");
 
-	alSourceUnqueueBuffers(alSourceId, ARRAY_COUNT(audioRenderer->bufferId),
+		result = -1;
-	                       audioRenderer->bufferId);
+		return result;
-	AL_CHECK_ERROR();
+	}
-	alDeleteBuffers(ARRAY_COUNT(audioRenderer->bufferId),
+
-	                audioRenderer->bufferId);
+	for (i32 i = 0; i < ARRAY_COUNT(audioRenderer->bufferId); i++)
+	{
+		if (alIsBuffer(audioRenderer->bufferId[i]) == AL_TRUE)
+		{
+			alSourceUnqueueBuffers(alSourceId, 1, &audioRenderer->bufferId[i]);
+			alDeleteBuffers(1, &audioRenderer->bufferId[i]);
 			AL_CHECK_ERROR();
+		}
+		else
+		{
+			DEBUG_LOG("rendererRelease(): Invalid buffer identified in renderer");
+			result = -1;
+		}
+	}
 
 	for (i32 i = 0; i < ARRAY_COUNT(audioRenderer->bufferId); i++)
 	{
@@ -184,12 +211,14 @@ INTERNAL void rendererRelease(AudioManager *audioManager,
 	    audioManager->freeSourceIndex;
 	audioManager->freeSourceIndex = sourceIndexToFree;
 
+	return result;
+
 }
 
 #define AUDIO_CHUNK_SIZE_ 65536
-void audio_streamPlayVorbis(AudioManager *audioManager,
+const i32 audio_streamPlayVorbis(AudioManager *audioManager,
-                             AudioRenderer *audioRenderer, AudioVorbis *vorbis,
+                                 AudioRenderer *audioRenderer,
-                             i32 numPlays)
+                                 AudioVorbis *vorbis, i32 numPlays)
 {
 #ifdef DENGINE_DEBUG
 	ASSERT(audioManager && audioRenderer && vorbis);
@@ -203,7 +232,7 @@ void audio_streamPlayVorbis(AudioManager *audioManager,
 	if (result)
 	{
 		DEBUG_LOG("audio_streamPlayVorbis() failed: Could not acquire renderer");
-		return;
+		return result;
 	}
 
 	/* Determine format */
@@ -214,38 +243,93 @@ void audio_streamPlayVorbis(AudioManager *audioManager,
 	{
 #ifdef DENGINE_DEBUG
 		DEBUG_LOG(
-		    "audio_streamPlayVorbis() warning: Unaccounted channel format");
+		    "audio_streamPlayVorbis() warning: Unexpected channel format");
-		ASSERT(INVALID_CODE_PATH);
 #endif
 	}
 
 	audioRenderer->audio    = vorbis;
 	audioRenderer->numPlays = numPlays;
+
+	return 0;
 }
 
-void audio_streamStopVorbis(AudioManager *audioManager,
+const i32 audio_streamStopVorbis(AudioManager *audioManager,
                             AudioRenderer *audioRenderer)
 {
+	i32 result     = 0;
 	u32 alSourceId = getSourceId(audioManager, audioRenderer);
+	if (alIsSource(alSourceId) == AL_TRUE)
+	{
 		alSourceStop(alSourceId);
 		AL_CHECK_ERROR();
-	rendererRelease(audioManager, audioRenderer);
+		result = rendererRelease(audioManager, audioRenderer);
+	}
+	else
+	{
+		DEBUG_LOG("audio_streamStopVorbis(): Tried to stop invalid source");
+		result = -1;
+	}
+
+	return result;
 }
 
-void audio_updateAndPlay(AudioManager *audioManager,
+const i32 audio_streamPauseVorbis(AudioManager *audioManager,
+                                  AudioRenderer *audioRenderer)
+{
+	i32 result     = 0;
+	u32 alSourceId = getSourceId(audioManager, audioRenderer);
+	if (alIsSource(alSourceId) == AL_TRUE)
+	{
+		alSourcePause(alSourceId);
+		AL_CHECK_ERROR();
+	}
+	else
+	{
+		DEBUG_LOG("audio_streamPauseVorbis(): Tried to pause invalid source");
+		result = -1;
+	}
+	return result;
+}
+
+const i32 audio_streamResumeVorbis(AudioManager *audioManager,
+                                   AudioRenderer *audioRenderer)
+{
+	i32 result = 0;
+	u32 alSourceId = getSourceId(audioManager, audioRenderer);
+	if (alIsSource(alSourceId) == AL_TRUE)
+	{
+		alSourcePlay(alSourceId);
+		AL_CHECK_ERROR();
+	}
+	else
+	{
+		DEBUG_LOG("audio_streamResumeVorbis(): Tried to resume invalid source");
+		result = -1;
+	}
+
+	return result;
+}
+
+const i32 audio_updateAndPlay(AudioManager *audioManager,
                               AudioRenderer *audioRenderer)
 {
 	AudioVorbis *audio = audioRenderer->audio;
-	if (!audio) return;
+	if (!audio) return 0;
 
 	if (audioRenderer->numPlays != AUDIO_REPEAT_INFINITE &&
 	    audioRenderer->numPlays <= 0)
 	{
-		rendererRelease(audioManager, audioRenderer);
+		i32 result = rendererRelease(audioManager, audioRenderer);
-		return;
+		return result;
 	}
 
 	u32 alSourceId = getSourceId(audioManager, audioRenderer);
+	if (alIsSource(alSourceId) == AL_FALSE)
+	{
+		DEBUG_LOG("audio_updateAndPlay(): Update failed on invalid source id");
+		return -1;
+	}
+
 	ALint audioState;
 	alGetSourcei(alSourceId, AL_SOURCE_STATE, &audioState);
 	AL_CHECK_ERROR();
@@ -271,8 +355,8 @@ void audio_updateAndPlay(AudioManager *audioManager,
 			}
 			else
 			{
-				rendererRelease(audioManager, audioRenderer);
+				i32 result = rendererRelease(audioManager, audioRenderer);
-				return;
+				return result;
 			}
 		}
 
@@ -329,4 +413,6 @@ void audio_updateAndPlay(AudioManager *audioManager,
 			}
 		}
 	}
+
+	return 0;
 }

src/WorldTraveller.c

@@ -224,7 +224,10 @@ void worldTraveller_gameInit(GameState *state, v2 windowSize)
 	                      "data/shaders/sprite.frag.glsl",
 	                      shaderlist_sprite);
 
+	result =
 	    asset_loadTTFont(assetManager, arena, "C:/Windows/Fonts/Arialbd.ttf");
+	if (result) DEBUG_LOG("Font loading failed");
+
 	GL_CHECK_ERROR();
 
 #ifdef DENGINE_DEBUG
@@ -495,6 +498,7 @@ INTERNAL void parseInput(GameState *state, const f32 dt)
 			ddPos = v2_scale(ddPos, 0.70710678118f);
 		}
 
+		LOCAL_PERSIST b32 toggleFlag = TRUE;
 		// TODO(doyle): Revisit key input with state checking for last ended down
 		if (state->keys[GLFW_KEY_SPACE] && spaceBarWasDown == FALSE)
 		{
@@ -506,6 +510,7 @@ INTERNAL void parseInput(GameState *state, const f32 dt)
 			v2 pos = V2(renderer->size.w - (renderer->size.w / xModifier), yPos);
 			addGenericMob(&state->arena, &state->assetManager, world, pos);
 #endif
+#if 0
 			if (world->soundscape->audio->sourceIndex == AUDIO_SOURCE_UNASSIGNED)
 			{
 				audio_streamPlayVorbis(
@@ -517,6 +522,28 @@ INTERNAL void parseInput(GameState *state, const f32 dt)
 			{
 				audio_streamStopVorbis(&state->audioManager,
 				                       world->soundscape->audio);
+				audio_streamPauseVorbis(&state->audioManager,
+				                        world->soundscape->audio);
+			}
+#endif
+
+			if (toggleFlag)
+			{
+				audio_streamPauseVorbis(&state->audioManager,
+				                        world->soundscape->audio);
+				toggleFlag = FALSE;
+			}
+			else
+			{
+				audio_streamResumeVorbis(&state->audioManager,
+				                        world->soundscape->audio);
+#if 0
+				audio_streamPlayVorbis(
+				    &state->audioManager, world->soundscape->audio,
+				    asset_getVorbis(&state->assetManager, audiolist_battle),
+				    AUDIO_REPEAT_INFINITE);
+#endif
+				toggleFlag = TRUE;
 			}
 			spaceBarWasDown = TRUE;
 		}

src/include/Dengine/Audio.h

@@ -36,11 +36,15 @@ struct AudioRenderer
 typedef struct AudioRenderer AudioRenderer;
 
 const i32 audio_init(AudioManager *audioManager);
-void audio_streamPlayVorbis(AudioManager *audioManager,
+const i32 audio_streamPlayVorbis(AudioManager *audioManager,
-                            AudioRenderer *audioRenderer, AudioVorbis *vorbis,
+                                 AudioRenderer *audioRenderer,
-                            i32 numPlays);
+                                 AudioVorbis *vorbis, i32 numPlays);
-void audio_streamStopVorbis(AudioManager *audioManager,
+const i32 audio_streamStopVorbis(AudioManager *audioManager,
                                  AudioRenderer *audioRenderer);
-void audio_updateAndPlay(AudioManager *audioManager,
+const i32 audio_streamPauseVorbis(AudioManager *audioManager,
+                                  AudioRenderer *audioRenderer);
+const i32 audio_streamResumeVorbis(AudioManager *audioManager,
+                                   AudioRenderer *audioRenderer);
+const i32 audio_updateAndPlay(AudioManager *audioManager,
                               AudioRenderer *audioRenderer);
 #endif