1 files changed, 143 insertions, 0 deletions
diff --git a/graphics/audio.h b/graphics/audio.h
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+/*
+ * Simple-SDL2-Audio
+ *
+ * Copyright 2016 Jake Besworth
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+/*
+ * audio.h
+ *
+ * All audio related functions go here
+ *
+ */
+#ifndef SIMPLE_AUDIO_
+#define SIMPLE_AUDIO_
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <SDL2/SDL.h>
+
+/*
+ * Queue structure for all loaded sounds
+ *
+ */
+typedef struct sound
+{
+    uint32_t length;
+    uint32_t lengthTrue;
+    uint8_t * bufferTrue;
+    uint8_t * buffer;
+    uint8_t loop;
+    uint8_t fade;
+    uint8_t free;
+    uint8_t volume;
+
+    SDL_AudioSpec audio;
+
+    struct sound * next;
+} Audio;
+
+/*
+ * Create a Audio object
+ *
+ * @param filename      Filename for the WAVE file to load
+ * @param loop          0 ends after playing once (sound), 1 repeats and fades when other music added (music)
+ * @param volume        Volume, read playSound()
+ *
+ * @return returns a new Audio or NULL on failure, you must call freeAudio() on return Audio
+ *
+ */
+Audio * createAudio(const char * filename, uint8_t loop, int volume);
+
+/*
+ * Frees as many chained Audios as given
+ *
+ * @param audio     Chain of sounds to free
+ *
+ */
+void freeAudio(Audio * audio);
+
+/*
+ * Play a wave file currently must be S16LE format 2 channel stereo
+ *
+ * @param filename      Filename to open, use getAbsolutePath
+ * @param volume        Volume 0 - 128. SDL_MIX_MAXVOLUME constant for max volume
+ *
+ */
+void playSound(const char * filename, int volume);
+
+/*
+ * Plays a new music, only 1 at a time plays
+ *
+ * @param filename      Filename of the WAVE file to load
+ * @param volume        Volume read playSound for moree
+ *
+ */
+void playMusic(const char * filename, int volume);
+
+/*
+ * Plays a sound from a createAudio object (clones), only 1 at a time plays
+ * Advantage to this method is no more disk reads, only once, data is stored and constantly reused
+ *
+ * @param audio         Audio object to clone and use
+ * @param volume        Volume read playSound for moree
+ *
+ */
+void playSoundFromMemory(Audio * audio, int volume);
+
+/*
+ * Plays a music from a createAudio object (clones), only 1 at a time plays
+ * Advantage to this method is no more disk reads, only once, data is stored and constantly reused
+ *
+ * @param audio         Audio object to clone and use
+ * @param volume        Volume read playSound for moree
+ *
+ */
+void playMusicFromMemory(Audio * audio, int volume);
+
+/*
+ * Free all audio related variables
+ * Note, this needs to be run even if initAudio fails, because it frees the global audio device
+ *
+ */
+void endAudio(void);
+
+/*
+ * Initialize Audio Variable
+ *
+ */
+void initAudio(void);
+
+/*
+ * Pause audio from playing
+ *
+ */
+void pauseAudio(void);
+
+/*
+ * Unpause audio from playing
+ *
+ */
+void unpauseAudio(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif