godot/drivers/wasapi/audio_driver_wasapi.h
Lalit Shankar Chowdhury 8b8c49703a
Use COM smart pointers to handle COM objects safely
Use ComPtr to handle COM objects safely

Use COM smart pointers in WASAPI driver

Fix ComPtr handling

Fix crash due to IAudioClient3 type conversion
2024-05-16 16:46:45 +05:30

131 lines
4.9 KiB
C++

/**************************************************************************/
/* audio_driver_wasapi.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef AUDIO_DRIVER_WASAPI_H
#define AUDIO_DRIVER_WASAPI_H
#ifdef WASAPI_ENABLED
#include "core/os/mutex.h"
#include "core/os/thread.h"
#include "core/templates/safe_refcount.h"
#include "servers/audio_server.h"
#include <audioclient.h>
#include <mmdeviceapi.h>
#include <wrl/client.h>
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
using Microsoft::WRL::ComPtr;
class AudioDriverWASAPI : public AudioDriver {
class AudioDeviceWASAPI {
public:
ComPtr<IAudioClient> audio_client = nullptr;
ComPtr<IAudioRenderClient> render_client = nullptr; // Output
ComPtr<IAudioCaptureClient> capture_client = nullptr; // Input
SafeFlag active;
WORD format_tag = 0;
WORD bits_per_sample = 0;
unsigned int channels = 0;
unsigned int frame_size = 0;
String device_name = "Default"; // Output OR Input
String new_device = "Default"; // Output OR Input
AudioDeviceWASAPI() {}
};
AudioDeviceWASAPI audio_input;
AudioDeviceWASAPI audio_output;
Mutex mutex;
Thread thread;
Vector<int32_t> samples_in;
unsigned int channels = 0;
int mix_rate = 0;
int buffer_frames = 0;
int target_latency_ms = 0;
float real_latency = 0.0;
bool using_audio_client_3 = false;
SafeFlag exit_thread;
static _FORCE_INLINE_ void write_sample(WORD format_tag, int bits_per_sample, BYTE *buffer, int i, int32_t sample);
static _FORCE_INLINE_ int32_t read_sample(WORD format_tag, int bits_per_sample, BYTE *buffer, int i);
static void thread_func(void *p_udata);
Error init_output_device(bool p_reinit = false);
Error init_input_device(bool p_reinit = false);
Error finish_output_device();
Error finish_input_device();
Error audio_device_init(AudioDeviceWASAPI *p_device, bool p_input, bool p_reinit, bool p_no_audio_client_3 = false);
Error audio_device_finish(AudioDeviceWASAPI *p_device);
PackedStringArray audio_device_get_list(bool p_input);
public:
virtual const char *get_name() const override {
return "WASAPI";
}
virtual Error init() override;
virtual void start() override;
virtual int get_mix_rate() const override;
virtual SpeakerMode get_speaker_mode() const override;
virtual float get_latency() override;
virtual void lock() override;
virtual void unlock() override;
virtual void finish() override;
virtual PackedStringArray get_output_device_list() override;
virtual String get_output_device() override;
virtual void set_output_device(const String &p_name) override;
virtual Error input_start() override;
virtual Error input_stop() override;
virtual PackedStringArray get_input_device_list() override;
virtual String get_input_device() override;
virtual void set_input_device(const String &p_name) override;
AudioDriverWASAPI();
};
#endif // WASAPI_ENABLED
#endif // AUDIO_DRIVER_WASAPI_H