1 /*************************************************************************/ 2 /* audio_driver_wasapi.h */ 3 /*************************************************************************/ 4 /* This file is part of: */ 5 /* GODOT ENGINE */ 6 /* https://godotengine.org */ 7 /*************************************************************************/ 8 /* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ 9 /* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */ 10 /* */ 11 /* Permission is hereby granted, free of charge, to any person obtaining */ 12 /* a copy of this software and associated documentation files (the */ 13 /* "Software"), to deal in the Software without restriction, including */ 14 /* without limitation the rights to use, copy, modify, merge, publish, */ 15 /* distribute, sublicense, and/or sell copies of the Software, and to */ 16 /* permit persons to whom the Software is furnished to do so, subject to */ 17 /* the following conditions: */ 18 /* */ 19 /* The above copyright notice and this permission notice shall be */ 20 /* included in all copies or substantial portions of the Software. */ 21 /* */ 22 /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ 23 /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ 24 /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ 25 /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ 26 /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ 27 /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ 28 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ 29 /*************************************************************************/ 30 31 #ifndef AUDIO_DRIVER_WASAPI_H 32 #define AUDIO_DRIVER_WASAPI_H 33 34 #ifdef WASAPI_ENABLED 35 36 #include "core/os/mutex.h" 37 #include "core/os/thread.h" 38 #include "servers/audio_server.h" 39 40 #include <audioclient.h> 41 #include <mmdeviceapi.h> 42 #include <windows.h> 43 44 class AudioDriverWASAPI : public AudioDriver { 45 46 class AudioDeviceWASAPI { 47 public: 48 IAudioClient *audio_client; 49 IAudioRenderClient *render_client; 50 IAudioCaptureClient *capture_client; 51 bool active; 52 53 WORD format_tag; 54 WORD bits_per_sample; 55 unsigned int channels; 56 unsigned int frame_size; 57 58 String device_name; 59 String new_device; 60 AudioDeviceWASAPI()61 AudioDeviceWASAPI() : 62 audio_client(NULL), 63 render_client(NULL), 64 capture_client(NULL), 65 active(false), 66 format_tag(0), 67 bits_per_sample(0), 68 channels(0), 69 frame_size(0), 70 device_name("Default"), 71 new_device("Default") { 72 } 73 }; 74 75 AudioDeviceWASAPI audio_input; 76 AudioDeviceWASAPI audio_output; 77 78 Mutex *mutex; 79 Thread *thread; 80 81 Vector<int32_t> samples_in; 82 83 unsigned int channels; 84 int mix_rate; 85 int buffer_frames; 86 87 bool thread_exited; 88 mutable bool exit_thread; 89 90 static _FORCE_INLINE_ void write_sample(WORD format_tag, int bits_per_sample, BYTE *buffer, int i, int32_t sample); 91 static _FORCE_INLINE_ int32_t read_sample(WORD format_tag, int bits_per_sample, BYTE *buffer, int i); 92 static void thread_func(void *p_udata); 93 94 Error init_render_device(bool reinit = false); 95 Error init_capture_device(bool reinit = false); 96 97 Error finish_render_device(); 98 Error finish_capture_device(); 99 100 Error audio_device_init(AudioDeviceWASAPI *p_device, bool p_capture, bool reinit); 101 Error audio_device_finish(AudioDeviceWASAPI *p_device); 102 Array audio_device_get_list(bool p_capture); 103 104 public: get_name()105 virtual const char *get_name() const { 106 return "WASAPI"; 107 } 108 109 virtual Error init(); 110 virtual void start(); 111 virtual int get_mix_rate() const; 112 virtual SpeakerMode get_speaker_mode() const; 113 virtual Array get_device_list(); 114 virtual String get_device(); 115 virtual void set_device(String device); 116 virtual void lock(); 117 virtual void unlock(); 118 virtual void finish(); 119 120 virtual Error capture_start(); 121 virtual Error capture_stop(); 122 virtual Array capture_get_device_list(); 123 virtual void capture_set_device(const String &p_name); 124 virtual String capture_get_device(); 125 126 AudioDriverWASAPI(); 127 }; 128 129 #endif // AUDIO_DRIVER_WASAPI_H 130 #endif 131