rename window io

src/io/audio.h

@@ -0,0 +1,35 @@
+#pragma once
+
+#include <SDL_audio.h>
+#include <stdint.h>
+
+struct audiodata {
+    uint8_t* buf; // pointer to the audio buffer
+    uint32_t len; // length in bytes of the audio buffer
+    uint32_t ms;  // length in miliseconds of the audio buffer
+};
+
+// contains the data of the audio fragments to be played
+struct audioplayer {
+    struct audioplayer* nxt; // pointer to the next audioplayer (may be null)
+    uint8_t* buf;            // pointer to the current item in the buffer to be played
+    uint32_t len;            // the length in bytes that the buffer has remaining
+};
+
+struct audiodevice {
+    struct audioplayer* audio_players;
+    SDL_AudioDeviceID id;
+    int freq;
+    SDL_AudioFormat fmt;
+    uint8_t channels;
+};
+
+typedef struct audiodata audiodata;
+typedef struct audiodevice audiodevice;
+
+audiodevice* audio_device_init(int, SDL_AudioFormat, uint8_t, uint16_t);
+void audio_play(audiodevice*, audiodata const*);
+void audio_device_free(audiodevice*);
+
+audiodata audio_wav_load(audiodevice const*, char const*);
+void audio_wav_unload(audiodata*);