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@ r14895:fb237f7e7f5b
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Location: cpp/openttd-patchpack/source/src/sound/win32_s.cpp
r14895:fb237f7e7f5b
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(svn r19502) -Codechange: During NewGRF loading, store rail type labels in temporary data and process after loading has finished. This avoids deactivated rail vehicles being reactivated if the climate property is set after the rail type property.
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/*
* 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 "win32_s.h"
#include <windows.h>
#include <mmsystem.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)
{
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(NULL, _T("Sounds are disabled until restart."), _T("waveOutWrite failed"), MB_ICONINFORMATION);
return 0;
}
}
WaitForSingleObject(_event, INFINITE);
} while (_waveout != NULL);
return 0;
}
const char *SoundDriver_Win32::Start(const char * const *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;
_bufsize = GetDriverParamInt(parm, "bufsize", (GB(GetVersion(), 0, 8) > 5) ? 8192 : 4096);
try {
if (NULL == (_event = CreateEvent(NULL, FALSE, FALSE, NULL))) 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 (NULL == (_thread = CreateThread(NULL, 8192, SoundThread, 0, 0, &_threadId))) throw "Failed to create thread";
} catch (char *error) {
this->Stop();
return error;
}
return NULL;
}
void SoundDriver_Win32::Stop()
{
HWAVEOUT waveout = _waveout;
/* Stop the sound thread. */
_waveout = NULL;
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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