Initial commit for GitHub migration based on spice2x-25-03-03

src/spice2x/hooks/audio/implementations/wave_out.h

@@ -0,0 +1,58 @@
+#pragma once
+
+#include <mmdeviceapi.h>
+#include <mmsystem.h>
+
+#include "backend.h"
+
+#define WASAPI_BUFFER_COUNT 3
+#define TARGET_REFTIME      (100000) // 10 ms
+
+struct WaveOutBackend final : AudioBackend {
+public:
+    ~WaveOutBackend() final = default;
+
+    HRESULT init(uint32_t buffer_size);
+
+    const WAVEFORMATEXTENSIBLE &format() const noexcept override;
+
+    HRESULT on_initialize(
+        AUDCLNT_SHAREMODE *ShareMode,
+        DWORD *StreamFlags,
+        REFERENCE_TIME *hnsBufferDuration,
+        REFERENCE_TIME *hnsPeriodicity,
+        const WAVEFORMATEX *pFormat,
+        LPCGUID AudioSessionGuid) noexcept override;
+
+    HRESULT on_get_buffer_size(uint32_t *buffer_frames) noexcept override;
+    HRESULT on_get_stream_latency(REFERENCE_TIME *latency) noexcept override;
+    HRESULT on_get_current_padding(std::optional<uint32_t> &padding_frames) noexcept override;
+
+    HRESULT on_is_format_supported(
+        AUDCLNT_SHAREMODE *ShareMode,
+        const WAVEFORMATEX *pFormat,
+        WAVEFORMATEX **ppClosestMatch) noexcept override;
+
+    HRESULT on_get_mix_format(WAVEFORMATEX **pp_device_format) noexcept override;
+
+    HRESULT on_get_device_period(
+        REFERENCE_TIME *default_device_period,
+        REFERENCE_TIME *minimum_device_period) override;
+
+    HRESULT on_start() noexcept override;
+    HRESULT on_stop() noexcept override;
+    HRESULT on_set_event_handle(HANDLE *event_handle) override;
+
+    HRESULT on_get_buffer(uint32_t num_frames_requested, BYTE **ppData) override;
+    HRESULT on_release_buffer(uint32_t num_frames_written, DWORD dwFlags) override;
+
+private:
+    WrappedIAudioClient *client;
+
+    bool initialized = false;
+    HANDLE relay_event = nullptr;
+    HANDLE dispatcher_event = nullptr;
+    HWAVEOUT handle = nullptr;
+    WAVEHDR hdrs[WASAPI_BUFFER_COUNT] {};
+    BYTE *active_sound_buffer = nullptr;
+};