initial commit

1 files changed, 33 insertions, 0 deletions

diff --git a/src/audio/audio.cpp b/src/audio/audio.cpp
new file mode 100644
index 0000000..9e778f1
--- /dev/null
+++ b/src/audio/audio.cpp
@@ -0,0 +1,33 @@
+#define MINIAUDIO_IMPLEMENTATION
+#include "miniaudio.h"
+#include <math.h>
+
+static ma_device device;
+static float phase = 0.0f;
+
+static void audio_callback(ma_device*, void* output, const void*, ma_uint32 frames) {
+    int16_t* out = (int16_t*)output;
+    const float freq = 440.0f;
+    const float sr = 32000.0f;
+
+    for (ma_uint32 i = 0; i < frames; i++) {
+        float s = sinf(phase) * 0.2f;
+        phase += 2.0f * 3.14159265f * freq / sr;
+        if (phase > 2.0f * 3.14159265f) phase -= 2.0f * 3.14159265f;
+        out[i] = (int16_t)(s * 32767.0f);
+    }
+}
+
+void audio_init() {
+    ma_device_config cfg = ma_device_config_init(ma_device_type_playback);
+    cfg.playback.format = ma_format_s16;
+    cfg.playback.channels = 1;
+    cfg.sampleRate = 32000;
+    cfg.dataCallback = audio_callback;
+
+    ma_device_init(nullptr, &cfg, &device);
+    ma_device_start(&device);
+}
+
+void audio_update() {}
+void audio_shutdown() { ma_device_uninit(&device); }