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Location: cpp/openttd-patchpack/source/src/sound/win32_s.cpp
r24489:93c2688c28bb
3.5 KiB
text/x-c
Change: [Linkgraph] Allow job threads to be aborted early when clearing schedule (#8416)
When link graph jobs are cleared due to abandoning the game or exiting,
flag the job as aborted.
The link graph job running in a separate thread checks the aborted flag
periodically and terminates processing early if set.
This reduces the delay at game abandon or exit if a long-running job
would otherwise still be running.
When link graph jobs are cleared due to abandoning the game or exiting,
flag the job as aborted.
The link graph job running in a separate thread checks the aborted flag
periodically and terminates processing early if set.
This reduces the delay at game abandon or exit if a long-running job
would otherwise still be running.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 | /*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file win32_s.cpp Handling of sound for Windows. */
#include "../stdafx.h"
#include "../openttd.h"
#include "../driver.h"
#include "../mixer.h"
#include "../core/alloc_func.hpp"
#include "../core/bitmath_func.hpp"
#include "../core/math_func.hpp"
#include "win32_s.h"
#include <windows.h>
#include <mmsystem.h>
#include "../os/windows/win32.h"
#include "../thread.h"
#include "../safeguards.h"
static FSoundDriver_Win32 iFSoundDriver_Win32;
static HWAVEOUT _waveout;
static WAVEHDR _wave_hdr[2];
static int _bufsize;
static HANDLE _thread;
static DWORD _threadId;
static HANDLE _event;
static void PrepareHeader(WAVEHDR *hdr)
{
hdr->dwBufferLength = _bufsize * 4;
hdr->dwFlags = 0;
hdr->lpData = MallocT<char>(_bufsize * 4);
if (waveOutPrepareHeader(_waveout, hdr, sizeof(WAVEHDR)) != MMSYSERR_NOERROR) throw "waveOutPrepareHeader failed";
}
static DWORD WINAPI SoundThread(LPVOID arg)
{
SetCurrentThreadName("ottd:win-sound");
do {
for (WAVEHDR *hdr = _wave_hdr; hdr != endof(_wave_hdr); hdr++) {
if ((hdr->dwFlags & WHDR_INQUEUE) != 0) continue;
MxMixSamples(hdr->lpData, hdr->dwBufferLength / 4);
if (waveOutWrite(_waveout, hdr, sizeof(WAVEHDR)) != MMSYSERR_NOERROR) {
MessageBox(nullptr, _T("Sounds are disabled until restart."), _T("waveOutWrite failed"), MB_ICONINFORMATION);
return 0;
}
}
WaitForSingleObject(_event, INFINITE);
} while (_waveout != nullptr);
return 0;
}
const char *SoundDriver_Win32::Start(const StringList &parm)
{
WAVEFORMATEX wfex;
wfex.wFormatTag = WAVE_FORMAT_PCM;
wfex.nChannels = 2;
wfex.wBitsPerSample = 16;
wfex.nSamplesPerSec = GetDriverParamInt(parm, "hz", 44100);
wfex.nBlockAlign = (wfex.nChannels * wfex.wBitsPerSample) / 8;
wfex.nAvgBytesPerSec = wfex.nSamplesPerSec * wfex.nBlockAlign;
/* Limit buffer size to prevent overflows. */
_bufsize = GetDriverParamInt(parm, "bufsize", (GB(GetVersion(), 0, 8) > 5) ? 8192 : 4096);
_bufsize = min(_bufsize, UINT16_MAX);
try {
if (nullptr == (_event = CreateEvent(nullptr, FALSE, FALSE, nullptr))) throw "Failed to create event";
if (waveOutOpen(&_waveout, WAVE_MAPPER, &wfex, (DWORD_PTR)_event, 0, CALLBACK_EVENT) != MMSYSERR_NOERROR) throw "waveOutOpen failed";
MxInitialize(wfex.nSamplesPerSec);
PrepareHeader(&_wave_hdr[0]);
PrepareHeader(&_wave_hdr[1]);
if (nullptr == (_thread = CreateThread(nullptr, 8192, SoundThread, 0, 0, &_threadId))) throw "Failed to create thread";
} catch (const char *error) {
this->Stop();
return error;
}
return nullptr;
}
void SoundDriver_Win32::Stop()
{
HWAVEOUT waveout = _waveout;
/* Stop the sound thread. */
_waveout = nullptr;
SetEvent(_event);
WaitForSingleObject(_thread, INFINITE);
/* Close the sound device. */
waveOutReset(waveout);
waveOutUnprepareHeader(waveout, &_wave_hdr[0], sizeof(WAVEHDR));
waveOutUnprepareHeader(waveout, &_wave_hdr[1], sizeof(WAVEHDR));
waveOutClose(waveout);
CloseHandle(_thread);
CloseHandle(_event);
}
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