Add all the files

src/audio/DirectSoundAPI.h

@@ -0,0 +1,66 @@
+#pragma once
+
+#define DIRECTSOUND_VERSION 0x0800
+#include <mmsystem.h>
+//#include <mmreg.h>
+#include <dsound.h>
+
+#include "IAudioAPI.h"
+
+class DirectSoundAPI : public IAudioAPI
+{
+public:
+	class DirectSoundDeviceDescription : public DeviceDescription
+	{
+	public:
+		DirectSoundDeviceDescription(const std::wstring& name, GUID* guid)
+			: DeviceDescription(name), m_guid(guid) { }
+
+		std::wstring GetIdentifier() const override;
+		GUID* GetGUID() const { return m_guid; }
+
+	private:
+		GUID* m_guid;
+	};
+
+	using DirectSoundDeviceDescriptionPtr = std::shared_ptr<DirectSoundDeviceDescription>;
+
+	// output
+	DirectSoundAPI(GUID* guid, sint32 samplerate, sint32 channels, sint32 samples_per_block, sint32 bits_per_sample);
+	~DirectSoundAPI();
+
+	AudioAPI GetType() const override { return DirectSound; }
+
+	bool Play() override;
+	bool Stop() override;
+	bool FeedBlock(sint16* data) override;
+	void SetVolume(sint32 volume) override;
+	bool NeedAdditionalBlocks() const override;
+
+	static std::vector<DeviceDescriptionPtr> GetDevices();
+	static std::vector<DeviceDescriptionPtr> GetInputDevices();
+
+private:
+	struct DirectSoundDeleter
+	{
+		void operator()(IUnknown* ptr) const { if (ptr) ptr->Release(); }
+	};
+
+	std::unique_ptr<IDirectSound8, DirectSoundDeleter> m_direct_sound;
+	//std::unique_ptr<IDirectSoundCapture8, DirectSoundDeleter> m_direct_sound_capture;
+	std::unique_ptr<IDirectSoundBuffer8, DirectSoundDeleter> m_sound_buffer;
+	std::unique_ptr<IDirectSoundNotify8, DirectSoundDeleter> m_notify;
+
+	DWORD m_sound_buffer_size = 0;
+	uint32_t m_offset = 0;
+	bool m_data_written = false;
+
+	static const uint32 kBufferCount = 4;
+	std::array<HANDLE, kBufferCount> m_notify_event{};
+	mutable std::shared_mutex m_mutex;
+
+	std::queue<std::unique_ptr<uint8[]>> m_buffer;
+	std::thread m_thread;
+	std::atomic_bool m_running = false;
+	void AudioThread();
+};