10 #include "../stdafx.h"
11 #include "../openttd.h"
12 #include "../driver.h"
15 #include "../core/alloc_func.hpp"
16 #include "../core/bitmath_func.hpp"
17 #include "../core/math_func.hpp"
23 #define NTDDI_VERSION NTDDI_WIN8
24 #define _WIN32_WINNT _WIN32_WINNT_WIN8
30 #include <wrl\client.h>
33 using Microsoft::WRL::ComPtr;
35 #include "../os/windows/win32.h"
36 #include "../safeguards.h"
39 typedef HRESULT(__stdcall *API_XAudio2Create)(_Outptr_ IXAudio2** ppXAudio2, UINT32 Flags, XAUDIO2_PROCESSOR XAudio2Processor);
54 IXAudio2SourceVoice* SourceVoice;
58 this->bufferLength = bufferLength;
59 this->buffer = MallocT<char>(bufferLength);
67 HRESULT SubmitBuffer()
70 if (this->SourceVoice ==
nullptr)
75 MxMixSamples(this->buffer, this->bufferLength / 4);
77 XAUDIO2_BUFFER buf = { 0 };
78 buf.AudioBytes = this->bufferLength;
79 buf.pAudioData = (
const BYTE *) this->buffer;
81 return SourceVoice->SubmitSourceBuffer(&buf);
84 STDMETHOD_(
void, OnVoiceProcessingPassStart)(UINT32)
override
88 STDMETHOD_(
void, OnVoiceProcessingPassEnd)()
override
92 STDMETHOD_(
void, OnStreamEnd)()
override
96 STDMETHOD_(
void, OnBufferStart)(
void*)
override
100 STDMETHOD_(
void, OnBufferEnd)(
void*)
override
105 STDMETHOD_(
void, OnLoopEnd)(
void*)
override
109 STDMETHOD_(
void, OnVoiceError)(
void*, HRESULT)
override
114 static HMODULE _xaudio_dll_handle;
115 static IXAudio2SourceVoice* _source_voice =
nullptr;
116 static IXAudio2MasteringVoice* _mastering_voice =
nullptr;
117 static ComPtr<IXAudio2> _xaudio2;
129 HRESULT hr = CoInitializeEx(
nullptr, COINIT_MULTITHREADED);
133 Debug(driver, 0,
"xaudio2_s: CoInitializeEx failed ({:08x})", (uint)hr);
134 return "Failed to initialise COM";
137 _xaudio_dll_handle = LoadLibraryA(XAUDIO2_DLL_A);
139 if (_xaudio_dll_handle ==
nullptr)
143 Debug(driver, 0,
"xaudio2_s: Unable to load " XAUDIO2_DLL_A);
144 return "Failed to load XAudio2 DLL";
147 API_XAudio2Create xAudio2Create = (API_XAudio2Create) GetProcAddress(_xaudio_dll_handle,
"XAudio2Create");
149 if (xAudio2Create ==
nullptr)
151 FreeLibrary(_xaudio_dll_handle);
154 Debug(driver, 0,
"xaudio2_s: Unable to find XAudio2Create function in DLL");
155 return "Failed to load XAudio2 DLL";
160 hr = xAudio2Create(_xaudio2.GetAddressOf(), flags, XAUDIO2_DEFAULT_PROCESSOR);
164 FreeLibrary(_xaudio_dll_handle);
167 Debug(driver, 0,
"xaudio2_s: XAudio2Create failed ({:08x})", (uint)hr);
168 return "Failed to inititialise the XAudio2 engine";
172 hr = _xaudio2->CreateMasteringVoice(&_mastering_voice);
177 FreeLibrary(_xaudio_dll_handle);
180 Debug(driver, 0,
"xaudio2_s: CreateMasteringVoice failed ({:08x})", (uint)hr);
181 return "Failed to create a mastering voice";
187 wfex.wFormatTag = WAVE_FORMAT_PCM;
189 wfex.wBitsPerSample = 16;
191 wfex.nBlockAlign = (wfex.nChannels * wfex.wBitsPerSample) / 8;
192 wfex.nAvgBytesPerSec = wfex.nSamplesPerSec * wfex.nBlockAlign;
196 bufsize = std::min<int>(bufsize, UINT16_MAX);
200 if (_voice_context ==
nullptr)
202 _mastering_voice->DestroyVoice();
204 FreeLibrary(_xaudio_dll_handle);
207 return "Failed to create streaming voice context";
210 hr = _xaudio2->CreateSourceVoice(&_source_voice, &wfex, 0, 1.0f, _voice_context);
214 _mastering_voice->DestroyVoice();
216 FreeLibrary(_xaudio_dll_handle);
219 Debug(driver, 0,
"xaudio2_s: CreateSourceVoice failed ({:08x})", (uint)hr);
220 return "Failed to create a source voice";
223 _voice_context->SourceVoice = _source_voice;
224 hr = _source_voice->Start(0, 0);
228 Debug(driver, 0,
"xaudio2_s: _source_voice->Start failed ({:08x})", (uint)hr);
231 return "Failed to start the source voice";
234 MxInitialize(wfex.nSamplesPerSec);
237 hr = _voice_context->SubmitBuffer();
241 Debug(driver, 0,
"xaudio2_s: _voice_context->SubmitBuffer failed ({:08x})", (uint)hr);
244 return "Failed to submit the first audio buffer";
256 _source_voice->DestroyVoice();
258 delete _voice_context;
259 _voice_context =
nullptr;
261 _mastering_voice->DestroyVoice();
265 FreeLibrary(_xaudio_dll_handle);