/* $Id$ */ #include "../stdafx.h" #include "../openttd.h" #include "../driver.h" #include "../functions.h" #include "../mixer.h" #include "win32_s.h" #include <windows.h> #include <mmsystem.h> static HWAVEOUT _waveout; static WAVEHDR _wave_hdr[2]; static int _bufsize; static void PrepareHeader(WAVEHDR *hdr) { hdr->dwBufferLength = _bufsize * 4; hdr->dwFlags = 0; hdr->lpData = malloc(_bufsize * 4); if (hdr->lpData == NULL || waveOutPrepareHeader(_waveout, hdr, sizeof(WAVEHDR)) != MMSYSERR_NOERROR) error("waveOutPrepareHeader failed"); } static void FillHeaders(void) { WAVEHDR *hdr; for (hdr = _wave_hdr; hdr != endof(_wave_hdr); hdr++) { if (!(hdr->dwFlags & WHDR_INQUEUE)) { MxMixSamples(hdr->lpData, hdr->dwBufferLength / 4); if (waveOutWrite(_waveout, hdr, sizeof(WAVEHDR)) != MMSYSERR_NOERROR) error("waveOutWrite failed"); } } } static void CALLBACK waveOutProc(HWAVEOUT hwo, UINT uMsg, DWORD_PTR dwInstance, DWORD dwParam1, DWORD dwParam2) { switch (uMsg) { case WOM_DONE: if (_waveout) FillHeaders(); break; default: break; } } static const char *Win32SoundStart(const char* const* parm) { WAVEFORMATEX wfex; int hz; _bufsize = GetDriverParamInt(parm, "bufsize", 1024); hz = GetDriverParamInt(parm, "hz", 11025); wfex.wFormatTag = WAVE_FORMAT_PCM; wfex.nChannels = 2; wfex.nSamplesPerSec = hz; wfex.nAvgBytesPerSec = hz * 2 * 2; wfex.nBlockAlign = 4; wfex.wBitsPerSample = 16; if (waveOutOpen(&_waveout, WAVE_MAPPER, &wfex, (DWORD_PTR)&waveOutProc, 0, CALLBACK_FUNCTION) != MMSYSERR_NOERROR) return "waveOutOpen failed"; PrepareHeader(&_wave_hdr[0]); PrepareHeader(&_wave_hdr[1]); FillHeaders(); return NULL; } static void Win32SoundStop(void) { HWAVEOUT waveout = _waveout; _waveout = NULL; waveOutReset(waveout); waveOutUnprepareHeader(waveout, &_wave_hdr[0], sizeof(WAVEHDR)); waveOutUnprepareHeader(waveout, &_wave_hdr[1], sizeof(WAVEHDR)); waveOutClose(waveout); } const HalSoundDriver _win32_sound_driver = { Win32SoundStart, Win32SoundStop, };