113 lines
2.5 KiB
C++
113 lines
2.5 KiB
C++
#include <windows.h>
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#include "Audio.h"
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#include "main.h"
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#include "api__in_cdda.h"
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static int start_clock,paused;
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static HWAVEIN hWaveIn;
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static short data_latest[576*2];
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static short data_buffers[2][576*2];
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static WAVEHDR wave_hdrs[2];
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static HANDLE hThread;
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static DWORD WINAPI Thread(LPVOID _a);
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int a_v = -666, a_p = 0, initted = 0;
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int audioInit(/*int sample*/)
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{
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WAVEFORMATEX wft = {0};
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DWORD threadid;
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start_clock=GetTickCount();
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paused=0;
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// if (!sample) return initted=0;
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wft.wFormatTag = WAVE_FORMAT_PCM;
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wft.nChannels = 2;
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wft.nSamplesPerSec = 44100;
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wft.nBlockAlign = 2*2;
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wft.nAvgBytesPerSec = wft.nSamplesPerSec*wft.nBlockAlign;
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wft.wBitsPerSample = 16;
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wft.cbSize = 0;
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if (waveInOpen(&hWaveIn,WAVE_MAPPER,&wft,0,0,0) != MMSYSERR_NOERROR)
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{
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return 1;
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}
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for (int x = 0; x < 2; x ++)
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{
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memset(&wave_hdrs[x],0,sizeof(wave_hdrs[x]));
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wave_hdrs[x].lpData = (char *) data_buffers[x];
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wave_hdrs[x].dwBufferLength = 576*2*sizeof(short);
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waveInPrepareHeader(hWaveIn,&wave_hdrs[x],sizeof(wave_hdrs[0]));
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waveInAddBuffer(hWaveIn,&wave_hdrs[x],sizeof(wave_hdrs[0]));
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}
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initted=1;
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done=0;
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waveInStart(hWaveIn);
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hThread = CreateThread(NULL,0,Thread,(LPVOID)&done,0,&threadid);
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SetThreadPriority(hThread, (int)AGAVE_API_CONFIG->GetInt(playbackConfigGroupGUID, L"priority", THREAD_PRIORITY_HIGHEST));
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return 0;
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}
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void audioPause(int s)
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{
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if (s)
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{
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if (!paused)
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{
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paused=1;
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if (initted) waveInStop(hWaveIn);
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start_clock = GetTickCount()-start_clock;
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}
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}
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else
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{
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if (paused)
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{
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if (initted) waveInStart(hWaveIn);
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start_clock=GetTickCount()-start_clock;
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paused=0;
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}
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}
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}
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void audioQuit()
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{
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if (!initted) return;
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done=1;
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WaitForSingleObject(hThread,INFINITE);
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waveInStop(hWaveIn);
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waveInReset(hWaveIn);
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while (waveInClose(hWaveIn) == WAVERR_STILLPLAYING) Sleep(10);
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CloseHandle(hThread);
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}
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int audioGetPos()
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{
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if (paused) return start_clock;
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return GetTickCount()-start_clock;
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}
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void audioSetPos(int ms)
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{
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start_clock = GetTickCount()-ms;
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}
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static DWORD WINAPI Thread(LPVOID _a)
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{
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volatile int *a = (volatile int *)_a;
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int w;
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while (!*a)
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{
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Sleep(576000/44100);
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if (wave_hdrs[0].dwFlags & WHDR_DONE) w=0;
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else if (wave_hdrs[1].dwFlags & WHDR_DONE) w=1;
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else continue;
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memcpy(data_latest,wave_hdrs[w].lpData,576*2*sizeof(short));
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wave_hdrs[w].dwFlags=WHDR_PREPARED;
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waveInAddBuffer(hWaveIn,&wave_hdrs[w],sizeof(wave_hdrs[0]));
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// memset(data_latest,0,576*2*sizeof(short));
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line.VSAAddPCMData(data_latest,2,16,0);
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line.SAAddPCMData(data_latest,2,16,0);
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}
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return 0;
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}
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