[26] | 1 | //////////////////////////////////////////////////////////// |
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| 2 | // Copyright (C) Roman Ryltsov, 2008-2011 |
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| 3 | // Created by Roman Ryltsov roman@alax.info |
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| 4 | // |
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| 5 | // $Id: WaveOutMultiPlay.cpp 26 2011-10-07 14:19:25Z roman $ |
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| 6 | |
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| 7 | #include "stdafx.h" |
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| 8 | #define _USE_MATH_DEFINES |
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| 9 | #include <math.h> |
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| 10 | #include <mmsystem.h> |
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| 11 | |
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| 12 | #pragma comment(lib, "winmm.lib") |
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| 13 | |
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| 14 | CString g_sOptions; |
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| 15 | |
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| 16 | VOID Check(MMRESULT nResult) |
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| 17 | { |
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| 18 | if(nResult == MMSYSERR_NOERROR) |
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| 19 | return; |
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| 20 | _tprintf(_T("nResult %d\n"), nResult); |
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| 21 | AtlThrow(E_FAIL); |
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| 22 | } |
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| 23 | |
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| 24 | VOID Play(const WAVEFORMATEX& WaveFormatEx, UINT nFrequency) |
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| 25 | { |
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| 26 | _ATLTRY |
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| 27 | { |
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| 28 | HWAVEOUT hWaveOut = NULL; |
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| 29 | if(g_sOptions.Find(_T("0")) >= 0) |
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| 30 | Check(waveOutOpen(&hWaveOut, 0, &WaveFormatEx, NULL, NULL, CALLBACK_NULL)); |
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| 31 | else |
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| 32 | Check(waveOutOpen(&hWaveOut, WAVE_MAPPER, &WaveFormatEx, NULL, NULL, CALLBACK_NULL)); |
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| 33 | ATLASSERT(hWaveOut); |
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| 34 | WAVEHDR* pWaveHeader; |
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| 35 | HGLOBAL hWaveHeader = (WAVEHDR*) GlobalAlloc(GMEM_MOVEABLE | GMEM_SHARE, sizeof *pWaveHeader + WaveFormatEx.nAvgBytesPerSec * 10); |
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| 36 | pWaveHeader = (WAVEHDR*) GlobalLock(hWaveHeader); |
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| 37 | ATLENSURE_THROW(pWaveHeader, E_OUTOFMEMORY); |
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| 38 | pWaveHeader->lpData = (LPSTR) (BYTE*) (pWaveHeader + 1); |
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| 39 | pWaveHeader->dwBufferLength = WaveFormatEx.nAvgBytesPerSec * 10; |
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| 40 | //pWaveHeader->dwUser = |
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| 41 | pWaveHeader->dwFlags = 0; |
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| 42 | pWaveHeader->dwLoops = 0; |
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| 43 | #pragma region Generate Actual Data |
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| 44 | { |
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| 45 | SHORT* pnData = (SHORT*) pWaveHeader->lpData; |
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| 46 | SIZE_T nDataCount = pWaveHeader->dwBufferLength / sizeof *pnData; |
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| 47 | for(SIZE_T nIndex = 0; nIndex < nDataCount; nIndex++) |
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| 48 | pnData[nIndex] = (SHORT) (32000 * sin(1.0 * nIndex / WaveFormatEx.nSamplesPerSec * nFrequency * 2 * M_PI)); |
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| 49 | } |
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| 50 | #pragma endregion |
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| 51 | Check(waveOutPrepareHeader(hWaveOut, pWaveHeader, sizeof *pWaveHeader)); |
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| 52 | Check(waveOutWrite(hWaveOut, pWaveHeader, sizeof *pWaveHeader)); |
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| 53 | GlobalUnlock(hWaveHeader); |
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| 54 | Sleep(INFINITE); |
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| 55 | } |
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| 56 | _ATLCATCHALL() |
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| 57 | { |
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| 58 | _tprintf(_T("Fatal error while trying to play waveform, nFrequency %d\n"), nFrequency); |
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| 59 | } |
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| 60 | } |
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| 61 | |
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| 62 | UINT STDMETHODCALLTYPE PlayA(VOID*) |
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| 63 | { |
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| 64 | static const WAVEFORMATEX g_WaveFormatEx = |
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| 65 | { |
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| 66 | WAVE_FORMAT_PCM, |
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| 67 | 1, |
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| 68 | 22050, |
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| 69 | 44100, |
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| 70 | 2, |
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| 71 | 16 |
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| 72 | }; |
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| 73 | Play(g_WaveFormatEx, 1000); |
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| 74 | return 0; |
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| 75 | } |
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| 76 | |
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| 77 | UINT STDMETHODCALLTYPE PlayB(VOID*) |
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| 78 | { |
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| 79 | static const WAVEFORMATEX g_WaveFormatEx = |
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| 80 | { |
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| 81 | WAVE_FORMAT_PCM, |
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| 82 | 1, |
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| 83 | 32000, |
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| 84 | 64000, |
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| 85 | 2, |
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| 86 | 16 |
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| 87 | }; |
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| 88 | Play(g_WaveFormatEx, 5000); |
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| 89 | return 0; |
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| 90 | } |
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| 91 | |
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| 92 | UINT STDMETHODCALLTYPE PlayC(VOID*) |
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| 93 | { |
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| 94 | static const WAVEFORMATEX g_WaveFormatEx = |
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| 95 | { |
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| 96 | WAVE_FORMAT_PCM, |
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| 97 | 1, |
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| 98 | 44100, |
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| 99 | 88200, |
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| 100 | 2, |
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| 101 | 16 |
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| 102 | }; |
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| 103 | Play(g_WaveFormatEx, 15000); |
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| 104 | return 0; |
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| 105 | } |
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| 106 | |
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| 107 | int _tmain(int argc, _TCHAR* argv[]) |
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| 108 | { |
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| 109 | if(argc <= 1) |
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| 110 | { |
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| 111 | _tprintf(_T("Syntax: WaveOutMultiPlay [a][b][c][0]\n")); |
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| 112 | _tprintf(_T(" Run 'WaveOutMultiPlay abc' to simultaneously play 1 kHz, 5 kHz and 15 kHz via default audio output device\n")); |
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| 113 | return 1; |
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| 114 | } |
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| 115 | g_sOptions = argv[1]; |
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| 116 | if(g_sOptions.Find(_T('a')) >= 0) |
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| 117 | ATLVERIFY(_beginthreadex(NULL, 0, &PlayA, NULL, 0, NULL)); |
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| 118 | if(g_sOptions.Find(_T('b')) >= 0) |
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| 119 | ATLVERIFY(_beginthreadex(NULL, 0, &PlayB, NULL, 0, NULL)); |
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| 120 | if(g_sOptions.Find(_T('c')) >= 0) |
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| 121 | ATLVERIFY(_beginthreadex(NULL, 0, &PlayC, NULL, 0, NULL)); |
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| 122 | Sleep(INFINITE); |
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| 123 | return 0; |
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| 124 | } |
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| 125 | |
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