[755] | 1 | //-----------------------------------------------------------------------------
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| 2 | // File: DXUTsound.cpp
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| 3 | //
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| 4 | // Desc: DirectSound framework classes for reading and writing wav files and
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| 5 | // playing them in DirectSound buffers. Feel free to use this class
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| 6 | // as a starting point for adding extra functionality.
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| 7 | //
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| 8 | // Copyright (c) Microsoft Corp. All rights reserved.
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| 9 | //-----------------------------------------------------------------------------
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| 10 | #define STRICT
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| 11 | #include "dxstdafx.h"
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| 12 | #include <mmsystem.h>
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| 13 | #include <dsound.h>
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| 14 | #include "DXUTsound.h"
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| 15 |
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| 16 |
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| 17 | //-----------------------------------------------------------------------------
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| 18 | // Name: CSoundManager::CSoundManager()
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| 19 | // Desc: Constructs the class
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| 20 | //-----------------------------------------------------------------------------
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| 21 | CSoundManager::CSoundManager()
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| 22 | {
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| 23 | m_pDS = NULL;
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| 24 | }
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| 25 |
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| 26 |
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| 27 | //-----------------------------------------------------------------------------
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| 28 | // Name: CSoundManager::~CSoundManager()
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| 29 | // Desc: Destroys the class
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| 30 | //-----------------------------------------------------------------------------
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| 31 | CSoundManager::~CSoundManager()
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| 32 | {
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| 33 | SAFE_RELEASE( m_pDS );
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| 34 | }
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| 35 |
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| 36 |
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| 37 | //-----------------------------------------------------------------------------
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| 38 | // Name: CSoundManager::Initialize()
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| 39 | // Desc: Initializes the IDirectSound object and also sets the primary buffer
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| 40 | // format. This function must be called before any others.
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| 41 | //-----------------------------------------------------------------------------
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| 42 | HRESULT CSoundManager::Initialize( HWND hWnd,
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| 43 | DWORD dwCoopLevel )
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| 44 | {
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| 45 | HRESULT hr;
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| 46 |
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| 47 | SAFE_RELEASE( m_pDS );
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| 48 |
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| 49 | // Create IDirectSound using the primary sound device
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| 50 | if( FAILED( hr = DirectSoundCreate8( NULL, &m_pDS, NULL ) ) )
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| 51 | return DXUT_ERR( L"DirectSoundCreate8", hr );
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| 52 |
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| 53 | // Set DirectSound coop level
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| 54 | if( FAILED( hr = m_pDS->SetCooperativeLevel( hWnd, dwCoopLevel ) ) )
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| 55 | return DXUT_ERR( L"SetCooperativeLevel", hr );
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| 56 |
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| 57 | return S_OK;
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| 58 | }
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| 59 |
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| 60 |
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| 61 | //-----------------------------------------------------------------------------
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| 62 | // Name: CSoundManager::SetPrimaryBufferFormat()
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| 63 | // Desc: Set primary buffer to a specified format
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| 64 | // !WARNING! - Setting the primary buffer format and then using this
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| 65 | // same DirectSound object for DirectMusic messes up
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| 66 | // DirectMusic!
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| 67 | // For example, to set the primary buffer format to 22kHz stereo, 16-bit
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| 68 | // then: dwPrimaryChannels = 2
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| 69 | // dwPrimaryFreq = 22050,
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| 70 | // dwPrimaryBitRate = 16
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| 71 | //-----------------------------------------------------------------------------
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| 72 | HRESULT CSoundManager::SetPrimaryBufferFormat( DWORD dwPrimaryChannels,
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| 73 | DWORD dwPrimaryFreq,
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| 74 | DWORD dwPrimaryBitRate )
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| 75 | {
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| 76 | HRESULT hr;
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| 77 | LPDIRECTSOUNDBUFFER pDSBPrimary = NULL;
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| 78 |
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| 79 | if( m_pDS == NULL )
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| 80 | return CO_E_NOTINITIALIZED;
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| 81 |
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| 82 | // Get the primary buffer
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| 83 | DSBUFFERDESC dsbd;
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| 84 | ZeroMemory( &dsbd, sizeof(DSBUFFERDESC) );
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| 85 | dsbd.dwSize = sizeof(DSBUFFERDESC);
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| 86 | dsbd.dwFlags = DSBCAPS_PRIMARYBUFFER;
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| 87 | dsbd.dwBufferBytes = 0;
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| 88 | dsbd.lpwfxFormat = NULL;
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| 89 |
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| 90 | if( FAILED( hr = m_pDS->CreateSoundBuffer( &dsbd, &pDSBPrimary, NULL ) ) )
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| 91 | return DXUT_ERR( L"CreateSoundBuffer", hr );
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| 92 |
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| 93 | WAVEFORMATEX wfx;
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| 94 | ZeroMemory( &wfx, sizeof(WAVEFORMATEX) );
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| 95 | wfx.wFormatTag = (WORD) WAVE_FORMAT_PCM;
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| 96 | wfx.nChannels = (WORD) dwPrimaryChannels;
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| 97 | wfx.nSamplesPerSec = (DWORD) dwPrimaryFreq;
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| 98 | wfx.wBitsPerSample = (WORD) dwPrimaryBitRate;
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| 99 | wfx.nBlockAlign = (WORD) (wfx.wBitsPerSample / 8 * wfx.nChannels);
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| 100 | wfx.nAvgBytesPerSec = (DWORD) (wfx.nSamplesPerSec * wfx.nBlockAlign);
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| 101 |
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| 102 | if( FAILED( hr = pDSBPrimary->SetFormat(&wfx) ) )
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| 103 | return DXUT_ERR( L"SetFormat", hr );
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| 104 |
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| 105 | SAFE_RELEASE( pDSBPrimary );
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| 106 |
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| 107 | return S_OK;
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| 108 | }
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| 109 |
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| 110 |
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| 111 | //-----------------------------------------------------------------------------
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| 112 | // Name: CSoundManager::Get3DListenerInterface()
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| 113 | // Desc: Returns the 3D listener interface associated with primary buffer.
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| 114 | //-----------------------------------------------------------------------------
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| 115 | HRESULT CSoundManager::Get3DListenerInterface( LPDIRECTSOUND3DLISTENER* ppDSListener )
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| 116 | {
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| 117 | HRESULT hr;
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| 118 | DSBUFFERDESC dsbdesc;
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| 119 | LPDIRECTSOUNDBUFFER pDSBPrimary = NULL;
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| 120 |
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| 121 | if( ppDSListener == NULL )
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| 122 | return E_INVALIDARG;
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| 123 | if( m_pDS == NULL )
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| 124 | return CO_E_NOTINITIALIZED;
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| 125 |
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| 126 | *ppDSListener = NULL;
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| 127 |
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| 128 | // Obtain primary buffer, asking it for 3D control
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| 129 | ZeroMemory( &dsbdesc, sizeof(DSBUFFERDESC) );
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| 130 | dsbdesc.dwSize = sizeof(DSBUFFERDESC);
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| 131 | dsbdesc.dwFlags = DSBCAPS_CTRL3D | DSBCAPS_PRIMARYBUFFER;
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| 132 | if( FAILED( hr = m_pDS->CreateSoundBuffer( &dsbdesc, &pDSBPrimary, NULL ) ) )
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| 133 | return DXUT_ERR( L"CreateSoundBuffer", hr );
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| 134 |
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| 135 | if( FAILED( hr = pDSBPrimary->QueryInterface( IID_IDirectSound3DListener,
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| 136 | (VOID**)ppDSListener ) ) )
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| 137 | {
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| 138 | SAFE_RELEASE( pDSBPrimary );
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| 139 | return DXUT_ERR( L"QueryInterface", hr );
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| 140 | }
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| 141 |
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| 142 | // Release the primary buffer, since it is not need anymore
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| 143 | SAFE_RELEASE( pDSBPrimary );
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| 144 |
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| 145 | return S_OK;
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| 146 | }
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| 147 |
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| 148 |
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| 149 | //-----------------------------------------------------------------------------
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| 150 | // Name: CSoundManager::Create()
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| 151 | // Desc:
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| 152 | //-----------------------------------------------------------------------------
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| 153 | HRESULT CSoundManager::Create( CSound** ppSound,
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| 154 | LPWSTR strWaveFileName,
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| 155 | DWORD dwCreationFlags,
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| 156 | GUID guid3DAlgorithm,
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| 157 | DWORD dwNumBuffers )
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| 158 | {
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| 159 | HRESULT hr;
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| 160 | HRESULT hrRet = S_OK;
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| 161 | DWORD i;
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| 162 | LPDIRECTSOUNDBUFFER* apDSBuffer = NULL;
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| 163 | DWORD dwDSBufferSize = NULL;
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| 164 | CWaveFile* pWaveFile = NULL;
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| 165 |
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| 166 | if( m_pDS == NULL )
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| 167 | return CO_E_NOTINITIALIZED;
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| 168 | if( strWaveFileName == NULL || ppSound == NULL || dwNumBuffers < 1 )
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| 169 | return E_INVALIDARG;
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| 170 |
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| 171 | apDSBuffer = new LPDIRECTSOUNDBUFFER[dwNumBuffers];
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| 172 | if( apDSBuffer == NULL )
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| 173 | {
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| 174 | hr = E_OUTOFMEMORY;
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| 175 | goto LFail;
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| 176 | }
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| 177 |
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| 178 | pWaveFile = new CWaveFile();
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| 179 | if( pWaveFile == NULL )
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| 180 | {
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| 181 | hr = E_OUTOFMEMORY;
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| 182 | goto LFail;
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| 183 | }
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| 184 |
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| 185 | pWaveFile->Open( strWaveFileName, NULL, WAVEFILE_READ );
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| 186 |
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| 187 | if( pWaveFile->GetSize() == 0 )
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| 188 | {
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| 189 | // Wave is blank, so don't create it.
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| 190 | hr = E_FAIL;
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| 191 | goto LFail;
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| 192 | }
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| 193 |
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| 194 | // Make the DirectSound buffer the same size as the wav file
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| 195 | dwDSBufferSize = pWaveFile->GetSize();
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| 196 |
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| 197 | // Create the direct sound buffer, and only request the flags needed
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| 198 | // since each requires some overhead and limits if the buffer can
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| 199 | // be hardware accelerated
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| 200 | DSBUFFERDESC dsbd;
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| 201 | ZeroMemory( &dsbd, sizeof(DSBUFFERDESC) );
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| 202 | dsbd.dwSize = sizeof(DSBUFFERDESC);
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| 203 | dsbd.dwFlags = dwCreationFlags;
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| 204 | dsbd.dwBufferBytes = dwDSBufferSize;
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| 205 | dsbd.guid3DAlgorithm = guid3DAlgorithm;
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| 206 | dsbd.lpwfxFormat = pWaveFile->m_pwfx;
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| 207 |
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| 208 | // DirectSound is only guarenteed to play PCM data. Other
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| 209 | // formats may or may not work depending the sound card driver.
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| 210 | hr = m_pDS->CreateSoundBuffer( &dsbd, &apDSBuffer[0], NULL );
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| 211 |
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| 212 | // Be sure to return this error code if it occurs so the
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| 213 | // callers knows this happened.
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| 214 | if( hr == DS_NO_VIRTUALIZATION )
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| 215 | hrRet = DS_NO_VIRTUALIZATION;
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| 216 |
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| 217 | if( FAILED(hr) )
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| 218 | {
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| 219 | // DSERR_BUFFERTOOSMALL will be returned if the buffer is
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| 220 | // less than DSBSIZE_FX_MIN and the buffer is created
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| 221 | // with DSBCAPS_CTRLFX.
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| 222 |
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| 223 | // It might also fail if hardware buffer mixing was requested
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| 224 | // on a device that doesn't support it.
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| 225 | DXUT_ERR( L"CreateSoundBuffer", hr );
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| 226 |
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| 227 | goto LFail;
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| 228 | }
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| 229 |
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| 230 | // Default to use DuplicateSoundBuffer() when created extra buffers since always
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| 231 | // create a buffer that uses the same memory however DuplicateSoundBuffer() will fail if
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| 232 | // DSBCAPS_CTRLFX is used, so use CreateSoundBuffer() instead in this case.
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| 233 | if( (dwCreationFlags & DSBCAPS_CTRLFX) == 0 )
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| 234 | {
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| 235 | for( i=1; i<dwNumBuffers; i++ )
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| 236 | {
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| 237 | if( FAILED( hr = m_pDS->DuplicateSoundBuffer( apDSBuffer[0], &apDSBuffer[i] ) ) )
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| 238 | {
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| 239 | DXUT_ERR( L"DuplicateSoundBuffer", hr );
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| 240 | goto LFail;
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| 241 | }
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| 242 | }
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| 243 | }
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| 244 | else
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| 245 | {
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| 246 | for( i=1; i<dwNumBuffers; i++ )
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| 247 | {
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| 248 | hr = m_pDS->CreateSoundBuffer( &dsbd, &apDSBuffer[i], NULL );
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| 249 | if( FAILED(hr) )
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| 250 | {
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| 251 | DXUT_ERR( L"CreateSoundBuffer", hr );
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| 252 | goto LFail;
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| 253 | }
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| 254 | }
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| 255 | }
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| 256 |
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| 257 | // Create the sound
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| 258 | *ppSound = new CSound( apDSBuffer, dwDSBufferSize, dwNumBuffers, pWaveFile, dwCreationFlags );
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| 259 |
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| 260 | SAFE_DELETE_ARRAY( apDSBuffer );
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| 261 | return hrRet;
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| 262 |
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| 263 | LFail:
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| 264 | // Cleanup
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| 265 | SAFE_DELETE( pWaveFile );
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| 266 | SAFE_DELETE_ARRAY( apDSBuffer );
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| 267 | return hr;
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| 268 | }
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| 269 |
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| 270 |
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| 271 | //-----------------------------------------------------------------------------
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| 272 | // Name: CSoundManager::CreateFromMemory()
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| 273 | // Desc:
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| 274 | //-----------------------------------------------------------------------------
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| 275 | HRESULT CSoundManager::CreateFromMemory( CSound** ppSound,
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| 276 | BYTE* pbData,
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| 277 | ULONG ulDataSize,
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| 278 | LPWAVEFORMATEX pwfx,
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| 279 | DWORD dwCreationFlags,
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| 280 | GUID guid3DAlgorithm,
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| 281 | DWORD dwNumBuffers )
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| 282 | {
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| 283 | HRESULT hr;
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| 284 | DWORD i;
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| 285 | LPDIRECTSOUNDBUFFER* apDSBuffer = NULL;
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| 286 | DWORD dwDSBufferSize = NULL;
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| 287 | CWaveFile* pWaveFile = NULL;
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| 288 |
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| 289 | if( m_pDS == NULL )
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| 290 | return CO_E_NOTINITIALIZED;
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| 291 | if( pbData == NULL || ppSound == NULL || dwNumBuffers < 1 )
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| 292 | return E_INVALIDARG;
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| 293 |
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| 294 | apDSBuffer = new LPDIRECTSOUNDBUFFER[dwNumBuffers];
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| 295 | if( apDSBuffer == NULL )
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| 296 | {
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| 297 | hr = E_OUTOFMEMORY;
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| 298 | goto LFail;
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| 299 | }
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| 300 |
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| 301 | pWaveFile = new CWaveFile();
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| 302 | if( pWaveFile == NULL )
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| 303 | {
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| 304 | hr = E_OUTOFMEMORY;
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| 305 | goto LFail;
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| 306 | }
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| 307 |
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| 308 | pWaveFile->OpenFromMemory( pbData,ulDataSize, pwfx, WAVEFILE_READ );
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| 309 |
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| 310 |
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| 311 | // Make the DirectSound buffer the same size as the wav file
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| 312 | dwDSBufferSize = ulDataSize;
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| 313 |
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| 314 | // Create the direct sound buffer, and only request the flags needed
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| 315 | // since each requires some overhead and limits if the buffer can
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| 316 | // be hardware accelerated
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| 317 | DSBUFFERDESC dsbd;
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| 318 | ZeroMemory( &dsbd, sizeof(DSBUFFERDESC) );
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| 319 | dsbd.dwSize = sizeof(DSBUFFERDESC);
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| 320 | dsbd.dwFlags = dwCreationFlags;
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| 321 | dsbd.dwBufferBytes = dwDSBufferSize;
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| 322 | dsbd.guid3DAlgorithm = guid3DAlgorithm;
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| 323 | dsbd.lpwfxFormat = pwfx;
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| 324 |
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| 325 | if( FAILED( hr = m_pDS->CreateSoundBuffer( &dsbd, &apDSBuffer[0], NULL ) ) )
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| 326 | {
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| 327 | DXUT_ERR( L"CreateSoundBuffer", hr );
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| 328 | goto LFail;
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| 329 | }
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| 330 |
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| 331 | // Default to use DuplicateSoundBuffer() when created extra buffers since always
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| 332 | // create a buffer that uses the same memory however DuplicateSoundBuffer() will fail if
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| 333 | // DSBCAPS_CTRLFX is used, so use CreateSoundBuffer() instead in this case.
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| 334 | if( (dwCreationFlags & DSBCAPS_CTRLFX) == 0 )
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| 335 | {
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| 336 | for( i=1; i<dwNumBuffers; i++ )
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| 337 | {
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| 338 | if( FAILED( hr = m_pDS->DuplicateSoundBuffer( apDSBuffer[0], &apDSBuffer[i] ) ) )
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| 339 | {
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| 340 | DXUT_ERR( L"DuplicateSoundBuffer", hr );
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| 341 | goto LFail;
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| 342 | }
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| 343 | }
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| 344 | }
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| 345 | else
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| 346 | {
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| 347 | for( i=1; i<dwNumBuffers; i++ )
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| 348 | {
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| 349 | hr = m_pDS->CreateSoundBuffer( &dsbd, &apDSBuffer[i], NULL );
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| 350 | if( FAILED(hr) )
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| 351 | {
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| 352 | DXUT_ERR( L"CreateSoundBuffer", hr );
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| 353 | goto LFail;
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| 354 | }
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| 355 | }
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| 356 | }
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| 357 |
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| 358 | // Create the sound
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| 359 | *ppSound = new CSound( apDSBuffer, dwDSBufferSize, dwNumBuffers, pWaveFile, dwCreationFlags );
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| 360 |
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| 361 | SAFE_DELETE_ARRAY( apDSBuffer );
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| 362 | return S_OK;
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| 363 |
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| 364 | LFail:
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| 365 | // Cleanup
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| 366 |
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| 367 | SAFE_DELETE_ARRAY( apDSBuffer );
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| 368 | return hr;
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| 369 | }
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| 370 |
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| 371 |
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| 372 | //-----------------------------------------------------------------------------
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| 373 | // Name: CSoundManager::CreateStreaming()
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| 374 | // Desc:
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| 375 | //-----------------------------------------------------------------------------
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| 376 | HRESULT CSoundManager::CreateStreaming( CStreamingSound** ppStreamingSound,
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| 377 | LPWSTR strWaveFileName,
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| 378 | DWORD dwCreationFlags,
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| 379 | GUID guid3DAlgorithm,
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| 380 | DWORD dwNotifyCount,
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| 381 | DWORD dwNotifySize,
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| 382 | HANDLE hNotifyEvent )
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| 383 | {
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| 384 | HRESULT hr;
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| 385 |
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| 386 | if( m_pDS == NULL )
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| 387 | return CO_E_NOTINITIALIZED;
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| 388 | if( strWaveFileName == NULL || ppStreamingSound == NULL || hNotifyEvent == NULL )
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| 389 | return E_INVALIDARG;
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| 390 |
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| 391 | LPDIRECTSOUNDBUFFER pDSBuffer = NULL;
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| 392 | DWORD dwDSBufferSize = NULL;
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| 393 | CWaveFile* pWaveFile = NULL;
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| 394 | DSBPOSITIONNOTIFY* aPosNotify = NULL;
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| 395 | LPDIRECTSOUNDNOTIFY pDSNotify = NULL;
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| 396 |
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| 397 | pWaveFile = new CWaveFile();
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| 398 | if( pWaveFile == NULL )
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| 399 | return E_OUTOFMEMORY;
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| 400 | pWaveFile->Open( strWaveFileName, NULL, WAVEFILE_READ );
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| 401 |
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| 402 | // Figure out how big the DirectSound buffer should be
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| 403 | dwDSBufferSize = dwNotifySize * dwNotifyCount;
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| 404 |
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| 405 | // Set up the direct sound buffer. Request the NOTIFY flag, so
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| 406 | // that we are notified as the sound buffer plays. Note, that using this flag
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| 407 | // may limit the amount of hardware acceleration that can occur.
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| 408 | DSBUFFERDESC dsbd;
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| 409 | ZeroMemory( &dsbd, sizeof(DSBUFFERDESC) );
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| 410 | dsbd.dwSize = sizeof(DSBUFFERDESC);
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| 411 | dsbd.dwFlags = dwCreationFlags |
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| 412 | DSBCAPS_CTRLPOSITIONNOTIFY |
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| 413 | DSBCAPS_GETCURRENTPOSITION2;
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| 414 | dsbd.dwBufferBytes = dwDSBufferSize;
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| 415 | dsbd.guid3DAlgorithm = guid3DAlgorithm;
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| 416 | dsbd.lpwfxFormat = pWaveFile->m_pwfx;
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| 417 |
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| 418 | if( FAILED( hr = m_pDS->CreateSoundBuffer( &dsbd, &pDSBuffer, NULL ) ) )
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| 419 | {
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| 420 | // If wave format isn't then it will return
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| 421 | // either DSERR_BADFORMAT or E_INVALIDARG
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| 422 | if( hr == DSERR_BADFORMAT || hr == E_INVALIDARG )
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| 423 | return DXUT_ERR( L"CreateSoundBuffer", hr );
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| 424 |
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| 425 | return DXUT_ERR( L"CreateSoundBuffer", hr );
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| 426 | }
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| 427 |
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| 428 | // Create the notification events, so that we know when to fill
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| 429 | // the buffer as the sound plays.
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| 430 | if( FAILED( hr = pDSBuffer->QueryInterface( IID_IDirectSoundNotify,
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| 431 | (VOID**)&pDSNotify ) ) )
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| 432 | {
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| 433 | SAFE_DELETE_ARRAY( aPosNotify );
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| 434 | return DXUT_ERR( L"QueryInterface", hr );
|
---|
| 435 | }
|
---|
| 436 |
|
---|
| 437 | aPosNotify = new DSBPOSITIONNOTIFY[ dwNotifyCount ];
|
---|
| 438 | if( aPosNotify == NULL )
|
---|
| 439 | return E_OUTOFMEMORY;
|
---|
| 440 |
|
---|
| 441 | for( DWORD i = 0; i < dwNotifyCount; i++ )
|
---|
| 442 | {
|
---|
| 443 | aPosNotify[i].dwOffset = (dwNotifySize * i) + dwNotifySize - 1;
|
---|
| 444 | aPosNotify[i].hEventNotify = hNotifyEvent;
|
---|
| 445 | }
|
---|
| 446 |
|
---|
| 447 | // Tell DirectSound when to notify us. The notification will come in the from
|
---|
| 448 | // of signaled events that are handled in WinMain()
|
---|
| 449 | if( FAILED( hr = pDSNotify->SetNotificationPositions( dwNotifyCount,
|
---|
| 450 | aPosNotify ) ) )
|
---|
| 451 | {
|
---|
| 452 | SAFE_RELEASE( pDSNotify );
|
---|
| 453 | SAFE_DELETE_ARRAY( aPosNotify );
|
---|
| 454 | return DXUT_ERR( L"SetNotificationPositions", hr );
|
---|
| 455 | }
|
---|
| 456 |
|
---|
| 457 | SAFE_RELEASE( pDSNotify );
|
---|
| 458 | SAFE_DELETE_ARRAY( aPosNotify );
|
---|
| 459 |
|
---|
| 460 | // Create the sound
|
---|
| 461 | *ppStreamingSound = new CStreamingSound( pDSBuffer, dwDSBufferSize, pWaveFile, dwNotifySize );
|
---|
| 462 |
|
---|
| 463 | return S_OK;
|
---|
| 464 | }
|
---|
| 465 |
|
---|
| 466 |
|
---|
| 467 | //-----------------------------------------------------------------------------
|
---|
| 468 | // Name: CSound::CSound()
|
---|
| 469 | // Desc: Constructs the class
|
---|
| 470 | //-----------------------------------------------------------------------------
|
---|
| 471 | CSound::CSound( LPDIRECTSOUNDBUFFER* apDSBuffer, DWORD dwDSBufferSize,
|
---|
| 472 | DWORD dwNumBuffers, CWaveFile* pWaveFile, DWORD dwCreationFlags )
|
---|
| 473 | {
|
---|
| 474 | DWORD i;
|
---|
| 475 |
|
---|
| 476 | if( dwNumBuffers <= 0 )
|
---|
| 477 | return;
|
---|
| 478 |
|
---|
| 479 | m_apDSBuffer = new LPDIRECTSOUNDBUFFER[dwNumBuffers];
|
---|
| 480 | if( NULL != m_apDSBuffer )
|
---|
| 481 | {
|
---|
| 482 | for( i=0; i<dwNumBuffers; i++ )
|
---|
| 483 | m_apDSBuffer[i] = apDSBuffer[i];
|
---|
| 484 |
|
---|
| 485 | m_dwDSBufferSize = dwDSBufferSize;
|
---|
| 486 | m_dwNumBuffers = dwNumBuffers;
|
---|
| 487 | m_pWaveFile = pWaveFile;
|
---|
| 488 | m_dwCreationFlags = dwCreationFlags;
|
---|
| 489 |
|
---|
| 490 | FillBufferWithSound( m_apDSBuffer[0], FALSE );
|
---|
| 491 | }
|
---|
| 492 | }
|
---|
| 493 |
|
---|
| 494 |
|
---|
| 495 | //-----------------------------------------------------------------------------
|
---|
| 496 | // Name: CSound::~CSound()
|
---|
| 497 | // Desc: Destroys the class
|
---|
| 498 | //-----------------------------------------------------------------------------
|
---|
| 499 | CSound::~CSound()
|
---|
| 500 | {
|
---|
| 501 | for( DWORD i=0; i<m_dwNumBuffers; i++ )
|
---|
| 502 | {
|
---|
| 503 | SAFE_RELEASE( m_apDSBuffer[i] );
|
---|
| 504 | }
|
---|
| 505 |
|
---|
| 506 | SAFE_DELETE_ARRAY( m_apDSBuffer );
|
---|
| 507 | SAFE_DELETE( m_pWaveFile );
|
---|
| 508 | }
|
---|
| 509 |
|
---|
| 510 |
|
---|
| 511 | //-----------------------------------------------------------------------------
|
---|
| 512 | // Name: CSound::FillBufferWithSound()
|
---|
| 513 | // Desc: Fills a DirectSound buffer with a sound file
|
---|
| 514 | //-----------------------------------------------------------------------------
|
---|
| 515 | HRESULT CSound::FillBufferWithSound( LPDIRECTSOUNDBUFFER pDSB, BOOL bRepeatWavIfBufferLarger )
|
---|
| 516 | {
|
---|
| 517 | HRESULT hr;
|
---|
| 518 | VOID* pDSLockedBuffer = NULL; // Pointer to locked buffer memory
|
---|
| 519 | DWORD dwDSLockedBufferSize = 0; // Size of the locked DirectSound buffer
|
---|
| 520 | DWORD dwWavDataRead = 0; // Amount of data read from the wav file
|
---|
| 521 |
|
---|
| 522 | if( pDSB == NULL )
|
---|
| 523 | return CO_E_NOTINITIALIZED;
|
---|
| 524 |
|
---|
| 525 | // Make sure we have focus, and we didn't just switch in from
|
---|
| 526 | // an app which had a DirectSound device
|
---|
| 527 | if( FAILED( hr = RestoreBuffer( pDSB, NULL ) ) )
|
---|
| 528 | return DXUT_ERR( L"RestoreBuffer", hr );
|
---|
| 529 |
|
---|
| 530 | // Lock the buffer down
|
---|
| 531 | if( FAILED( hr = pDSB->Lock( 0, m_dwDSBufferSize,
|
---|
| 532 | &pDSLockedBuffer, &dwDSLockedBufferSize,
|
---|
| 533 | NULL, NULL, 0L ) ) )
|
---|
| 534 | return DXUT_ERR( L"Lock", hr );
|
---|
| 535 |
|
---|
| 536 | // Reset the wave file to the beginning
|
---|
| 537 | m_pWaveFile->ResetFile();
|
---|
| 538 |
|
---|
| 539 | if( FAILED( hr = m_pWaveFile->Read( (BYTE*) pDSLockedBuffer,
|
---|
| 540 | dwDSLockedBufferSize,
|
---|
| 541 | &dwWavDataRead ) ) )
|
---|
| 542 | return DXUT_ERR( L"Read", hr );
|
---|
| 543 |
|
---|
| 544 | if( dwWavDataRead == 0 )
|
---|
| 545 | {
|
---|
| 546 | // Wav is blank, so just fill with silence
|
---|
| 547 | FillMemory( (BYTE*) pDSLockedBuffer,
|
---|
| 548 | dwDSLockedBufferSize,
|
---|
| 549 | (BYTE)(m_pWaveFile->m_pwfx->wBitsPerSample == 8 ? 128 : 0 ) );
|
---|
| 550 | }
|
---|
| 551 | else if( dwWavDataRead < dwDSLockedBufferSize )
|
---|
| 552 | {
|
---|
| 553 | // If the wav file was smaller than the DirectSound buffer,
|
---|
| 554 | // we need to fill the remainder of the buffer with data
|
---|
| 555 | if( bRepeatWavIfBufferLarger )
|
---|
| 556 | {
|
---|
| 557 | // Reset the file and fill the buffer with wav data
|
---|
| 558 | DWORD dwReadSoFar = dwWavDataRead; // From previous call above.
|
---|
| 559 | while( dwReadSoFar < dwDSLockedBufferSize )
|
---|
| 560 | {
|
---|
| 561 | // This will keep reading in until the buffer is full
|
---|
| 562 | // for very short files
|
---|
| 563 | if( FAILED( hr = m_pWaveFile->ResetFile() ) )
|
---|
| 564 | return DXUT_ERR( L"ResetFile", hr );
|
---|
| 565 |
|
---|
| 566 | hr = m_pWaveFile->Read( (BYTE*)pDSLockedBuffer + dwReadSoFar,
|
---|
| 567 | dwDSLockedBufferSize - dwReadSoFar,
|
---|
| 568 | &dwWavDataRead );
|
---|
| 569 | if( FAILED(hr) )
|
---|
| 570 | return DXUT_ERR( L"Read", hr );
|
---|
| 571 |
|
---|
| 572 | dwReadSoFar += dwWavDataRead;
|
---|
| 573 | }
|
---|
| 574 | }
|
---|
| 575 | else
|
---|
| 576 | {
|
---|
| 577 | // Don't repeat the wav file, just fill in silence
|
---|
| 578 | FillMemory( (BYTE*) pDSLockedBuffer + dwWavDataRead,
|
---|
| 579 | dwDSLockedBufferSize - dwWavDataRead,
|
---|
| 580 | (BYTE)(m_pWaveFile->m_pwfx->wBitsPerSample == 8 ? 128 : 0 ) );
|
---|
| 581 | }
|
---|
| 582 | }
|
---|
| 583 |
|
---|
| 584 | // Unlock the buffer, we don't need it anymore.
|
---|
| 585 | pDSB->Unlock( pDSLockedBuffer, dwDSLockedBufferSize, NULL, 0 );
|
---|
| 586 |
|
---|
| 587 | return S_OK;
|
---|
| 588 | }
|
---|
| 589 |
|
---|
| 590 |
|
---|
| 591 | //-----------------------------------------------------------------------------
|
---|
| 592 | // Name: CSound::RestoreBuffer()
|
---|
| 593 | // Desc: Restores the lost buffer. *pbWasRestored returns TRUE if the buffer was
|
---|
| 594 | // restored. It can also NULL if the information is not needed.
|
---|
| 595 | //-----------------------------------------------------------------------------
|
---|
| 596 | HRESULT CSound::RestoreBuffer( LPDIRECTSOUNDBUFFER pDSB, BOOL* pbWasRestored )
|
---|
| 597 | {
|
---|
| 598 | HRESULT hr;
|
---|
| 599 |
|
---|
| 600 | if( pDSB == NULL )
|
---|
| 601 | return CO_E_NOTINITIALIZED;
|
---|
| 602 | if( pbWasRestored )
|
---|
| 603 | *pbWasRestored = FALSE;
|
---|
| 604 |
|
---|
| 605 | DWORD dwStatus;
|
---|
| 606 | if( FAILED( hr = pDSB->GetStatus( &dwStatus ) ) )
|
---|
| 607 | return DXUT_ERR( L"GetStatus", hr );
|
---|
| 608 |
|
---|
| 609 | if( dwStatus & DSBSTATUS_BUFFERLOST )
|
---|
| 610 | {
|
---|
| 611 | // Since the app could have just been activated, then
|
---|
| 612 | // DirectSound may not be giving us control yet, so
|
---|
| 613 | // the restoring the buffer may fail.
|
---|
| 614 | // If it does, sleep until DirectSound gives us control.
|
---|
| 615 | do
|
---|
| 616 | {
|
---|
| 617 | hr = pDSB->Restore();
|
---|
| 618 | if( hr == DSERR_BUFFERLOST )
|
---|
| 619 | Sleep( 10 );
|
---|
| 620 | }
|
---|
| 621 | while( ( hr = pDSB->Restore() ) == DSERR_BUFFERLOST );
|
---|
| 622 |
|
---|
| 623 | if( pbWasRestored != NULL )
|
---|
| 624 | *pbWasRestored = TRUE;
|
---|
| 625 |
|
---|
| 626 | return S_OK;
|
---|
| 627 | }
|
---|
| 628 | else
|
---|
| 629 | {
|
---|
| 630 | return S_FALSE;
|
---|
| 631 | }
|
---|
| 632 | }
|
---|
| 633 |
|
---|
| 634 |
|
---|
| 635 | //-----------------------------------------------------------------------------
|
---|
| 636 | // Name: CSound::GetFreeBuffer()
|
---|
| 637 | // Desc: Finding the first buffer that is not playing and return a pointer to
|
---|
| 638 | // it, or if all are playing return a pointer to a randomly selected buffer.
|
---|
| 639 | //-----------------------------------------------------------------------------
|
---|
| 640 | LPDIRECTSOUNDBUFFER CSound::GetFreeBuffer()
|
---|
| 641 | {
|
---|
| 642 | if( m_apDSBuffer == NULL )
|
---|
| 643 | return FALSE;
|
---|
| 644 |
|
---|
| 645 | DWORD i;
|
---|
| 646 | for( i=0; i<m_dwNumBuffers; i++ )
|
---|
| 647 | {
|
---|
| 648 | if( m_apDSBuffer[i] )
|
---|
| 649 | {
|
---|
| 650 | DWORD dwStatus = 0;
|
---|
| 651 | m_apDSBuffer[i]->GetStatus( &dwStatus );
|
---|
| 652 | if ( ( dwStatus & DSBSTATUS_PLAYING ) == 0 )
|
---|
| 653 | break;
|
---|
| 654 | }
|
---|
| 655 | }
|
---|
| 656 |
|
---|
| 657 | if( i != m_dwNumBuffers )
|
---|
| 658 | return m_apDSBuffer[ i ];
|
---|
| 659 | else
|
---|
| 660 | return m_apDSBuffer[ rand() % m_dwNumBuffers ];
|
---|
| 661 | }
|
---|
| 662 |
|
---|
| 663 |
|
---|
| 664 | //-----------------------------------------------------------------------------
|
---|
| 665 | // Name: CSound::GetBuffer()
|
---|
| 666 | // Desc:
|
---|
| 667 | //-----------------------------------------------------------------------------
|
---|
| 668 | LPDIRECTSOUNDBUFFER CSound::GetBuffer( DWORD dwIndex )
|
---|
| 669 | {
|
---|
| 670 | if( m_apDSBuffer == NULL )
|
---|
| 671 | return NULL;
|
---|
| 672 | if( dwIndex >= m_dwNumBuffers )
|
---|
| 673 | return NULL;
|
---|
| 674 |
|
---|
| 675 | return m_apDSBuffer[dwIndex];
|
---|
| 676 | }
|
---|
| 677 |
|
---|
| 678 |
|
---|
| 679 | //-----------------------------------------------------------------------------
|
---|
| 680 | // Name: CSound::Get3DBufferInterface()
|
---|
| 681 | // Desc:
|
---|
| 682 | //-----------------------------------------------------------------------------
|
---|
| 683 | HRESULT CSound::Get3DBufferInterface( DWORD dwIndex, LPDIRECTSOUND3DBUFFER* ppDS3DBuffer )
|
---|
| 684 | {
|
---|
| 685 | if( m_apDSBuffer == NULL )
|
---|
| 686 | return CO_E_NOTINITIALIZED;
|
---|
| 687 | if( dwIndex >= m_dwNumBuffers )
|
---|
| 688 | return E_INVALIDARG;
|
---|
| 689 |
|
---|
| 690 | *ppDS3DBuffer = NULL;
|
---|
| 691 |
|
---|
| 692 | return m_apDSBuffer[dwIndex]->QueryInterface( IID_IDirectSound3DBuffer,
|
---|
| 693 | (VOID**)ppDS3DBuffer );
|
---|
| 694 | }
|
---|
| 695 |
|
---|
| 696 |
|
---|
| 697 | //-----------------------------------------------------------------------------
|
---|
| 698 | // Name: CSound::Play()
|
---|
| 699 | // Desc: Plays the sound using voice management flags. Pass in DSBPLAY_LOOPING
|
---|
| 700 | // in the dwFlags to loop the sound
|
---|
| 701 | //-----------------------------------------------------------------------------
|
---|
| 702 | HRESULT CSound::Play( DWORD dwPriority, DWORD dwFlags, LONG lVolume, LONG lFrequency, LONG lPan )
|
---|
| 703 | {
|
---|
| 704 | HRESULT hr;
|
---|
| 705 | BOOL bRestored;
|
---|
| 706 |
|
---|
| 707 | if( m_apDSBuffer == NULL )
|
---|
| 708 | return CO_E_NOTINITIALIZED;
|
---|
| 709 |
|
---|
| 710 | LPDIRECTSOUNDBUFFER pDSB = GetFreeBuffer();
|
---|
| 711 |
|
---|
| 712 | if( pDSB == NULL )
|
---|
| 713 | return DXUT_ERR( L"GetFreeBuffer", E_FAIL );
|
---|
| 714 |
|
---|
| 715 | // Restore the buffer if it was lost
|
---|
| 716 | if( FAILED( hr = RestoreBuffer( pDSB, &bRestored ) ) )
|
---|
| 717 | return DXUT_ERR( L"RestoreBuffer", hr );
|
---|
| 718 |
|
---|
| 719 | if( bRestored )
|
---|
| 720 | {
|
---|
| 721 | // The buffer was restored, so we need to fill it with new data
|
---|
| 722 | if( FAILED( hr = FillBufferWithSound( pDSB, FALSE ) ) )
|
---|
| 723 | return DXUT_ERR( L"FillBufferWithSound", hr );
|
---|
| 724 | }
|
---|
| 725 |
|
---|
| 726 | if( m_dwCreationFlags & DSBCAPS_CTRLVOLUME )
|
---|
| 727 | {
|
---|
| 728 | pDSB->SetVolume( lVolume );
|
---|
| 729 | }
|
---|
| 730 |
|
---|
| 731 | if( lFrequency != -1 &&
|
---|
| 732 | (m_dwCreationFlags & DSBCAPS_CTRLFREQUENCY) )
|
---|
| 733 | {
|
---|
| 734 | pDSB->SetFrequency( lFrequency );
|
---|
| 735 | }
|
---|
| 736 |
|
---|
| 737 | if( m_dwCreationFlags & DSBCAPS_CTRLPAN )
|
---|
| 738 | {
|
---|
| 739 | pDSB->SetPan( lPan );
|
---|
| 740 | }
|
---|
| 741 |
|
---|
| 742 | return pDSB->Play( 0, dwPriority, dwFlags );
|
---|
| 743 | }
|
---|
| 744 |
|
---|
| 745 |
|
---|
| 746 | //-----------------------------------------------------------------------------
|
---|
| 747 | // Name: CSound::Play3D()
|
---|
| 748 | // Desc: Plays the sound using voice management flags. Pass in DSBPLAY_LOOPING
|
---|
| 749 | // in the dwFlags to loop the sound
|
---|
| 750 | //-----------------------------------------------------------------------------
|
---|
| 751 | HRESULT CSound::Play3D( LPDS3DBUFFER p3DBuffer, DWORD dwPriority, DWORD dwFlags, LONG lFrequency )
|
---|
| 752 | {
|
---|
| 753 | HRESULT hr;
|
---|
| 754 | BOOL bRestored;
|
---|
| 755 | DWORD dwBaseFrequency;
|
---|
| 756 |
|
---|
| 757 | if( m_apDSBuffer == NULL )
|
---|
| 758 | return CO_E_NOTINITIALIZED;
|
---|
| 759 |
|
---|
| 760 | LPDIRECTSOUNDBUFFER pDSB = GetFreeBuffer();
|
---|
| 761 | if( pDSB == NULL )
|
---|
| 762 | return DXUT_ERR( L"GetFreeBuffer", E_FAIL );
|
---|
| 763 |
|
---|
| 764 | // Restore the buffer if it was lost
|
---|
| 765 | if( FAILED( hr = RestoreBuffer( pDSB, &bRestored ) ) )
|
---|
| 766 | return DXUT_ERR( L"RestoreBuffer", hr );
|
---|
| 767 |
|
---|
| 768 | if( bRestored )
|
---|
| 769 | {
|
---|
| 770 | // The buffer was restored, so we need to fill it with new data
|
---|
| 771 | if( FAILED( hr = FillBufferWithSound( pDSB, FALSE ) ) )
|
---|
| 772 | return DXUT_ERR( L"FillBufferWithSound", hr );
|
---|
| 773 | }
|
---|
| 774 |
|
---|
| 775 | if( m_dwCreationFlags & DSBCAPS_CTRLFREQUENCY )
|
---|
| 776 | {
|
---|
| 777 | pDSB->GetFrequency( &dwBaseFrequency );
|
---|
| 778 | pDSB->SetFrequency( dwBaseFrequency + lFrequency );
|
---|
| 779 | }
|
---|
| 780 |
|
---|
| 781 | // QI for the 3D buffer
|
---|
| 782 | LPDIRECTSOUND3DBUFFER pDS3DBuffer;
|
---|
| 783 | hr = pDSB->QueryInterface( IID_IDirectSound3DBuffer, (VOID**) &pDS3DBuffer );
|
---|
| 784 | if( SUCCEEDED( hr ) )
|
---|
| 785 | {
|
---|
| 786 | hr = pDS3DBuffer->SetAllParameters( p3DBuffer, DS3D_IMMEDIATE );
|
---|
| 787 | if( SUCCEEDED( hr ) )
|
---|
| 788 | {
|
---|
| 789 | hr = pDSB->Play( 0, dwPriority, dwFlags );
|
---|
| 790 | }
|
---|
| 791 |
|
---|
| 792 | pDS3DBuffer->Release();
|
---|
| 793 | }
|
---|
| 794 |
|
---|
| 795 | return hr;
|
---|
| 796 | }
|
---|
| 797 |
|
---|
| 798 |
|
---|
| 799 | //-----------------------------------------------------------------------------
|
---|
| 800 | // Name: CSound::Stop()
|
---|
| 801 | // Desc: Stops the sound from playing
|
---|
| 802 | //-----------------------------------------------------------------------------
|
---|
| 803 | HRESULT CSound::Stop()
|
---|
| 804 | {
|
---|
| 805 | if( m_apDSBuffer == NULL )
|
---|
| 806 | return CO_E_NOTINITIALIZED;
|
---|
| 807 |
|
---|
| 808 | HRESULT hr = 0;
|
---|
| 809 |
|
---|
| 810 | for( DWORD i=0; i<m_dwNumBuffers; i++ )
|
---|
| 811 | hr |= m_apDSBuffer[i]->Stop();
|
---|
| 812 |
|
---|
| 813 | return hr;
|
---|
| 814 | }
|
---|
| 815 |
|
---|
| 816 |
|
---|
| 817 | //-----------------------------------------------------------------------------
|
---|
| 818 | // Name: CSound::Reset()
|
---|
| 819 | // Desc: Reset all of the sound buffers
|
---|
| 820 | //-----------------------------------------------------------------------------
|
---|
| 821 | HRESULT CSound::Reset()
|
---|
| 822 | {
|
---|
| 823 | if( m_apDSBuffer == NULL )
|
---|
| 824 | return CO_E_NOTINITIALIZED;
|
---|
| 825 |
|
---|
| 826 | HRESULT hr = 0;
|
---|
| 827 |
|
---|
| 828 | for( DWORD i=0; i<m_dwNumBuffers; i++ )
|
---|
| 829 | hr |= m_apDSBuffer[i]->SetCurrentPosition( 0 );
|
---|
| 830 |
|
---|
| 831 | return hr;
|
---|
| 832 | }
|
---|
| 833 |
|
---|
| 834 |
|
---|
| 835 | //-----------------------------------------------------------------------------
|
---|
| 836 | // Name: CSound::IsSoundPlaying()
|
---|
| 837 | // Desc: Checks to see if a buffer is playing and returns TRUE if it is.
|
---|
| 838 | //-----------------------------------------------------------------------------
|
---|
| 839 | BOOL CSound::IsSoundPlaying()
|
---|
| 840 | {
|
---|
| 841 | BOOL bIsPlaying = FALSE;
|
---|
| 842 |
|
---|
| 843 | if( m_apDSBuffer == NULL )
|
---|
| 844 | return FALSE;
|
---|
| 845 |
|
---|
| 846 | for( DWORD i=0; i<m_dwNumBuffers; i++ )
|
---|
| 847 | {
|
---|
| 848 | if( m_apDSBuffer[i] )
|
---|
| 849 | {
|
---|
| 850 | DWORD dwStatus = 0;
|
---|
| 851 | m_apDSBuffer[i]->GetStatus( &dwStatus );
|
---|
| 852 | bIsPlaying |= ( ( dwStatus & DSBSTATUS_PLAYING ) != 0 );
|
---|
| 853 | }
|
---|
| 854 | }
|
---|
| 855 |
|
---|
| 856 | return bIsPlaying;
|
---|
| 857 | }
|
---|
| 858 |
|
---|
| 859 |
|
---|
| 860 | //-----------------------------------------------------------------------------
|
---|
| 861 | // Name: CStreamingSound::CStreamingSound()
|
---|
| 862 | // Desc: Setups up a buffer so data can be streamed from the wave file into
|
---|
| 863 | // a buffer. This is very useful for large wav files that would take a
|
---|
| 864 | // while to load. The buffer is initially filled with data, then
|
---|
| 865 | // as sound is played the notification events are signaled and more data
|
---|
| 866 | // is written into the buffer by calling HandleWaveStreamNotification()
|
---|
| 867 | //-----------------------------------------------------------------------------
|
---|
| 868 | CStreamingSound::CStreamingSound( LPDIRECTSOUNDBUFFER pDSBuffer, DWORD dwDSBufferSize,
|
---|
| 869 | CWaveFile* pWaveFile, DWORD dwNotifySize )
|
---|
| 870 | : CSound( &pDSBuffer, dwDSBufferSize, 1, pWaveFile, 0 )
|
---|
| 871 | {
|
---|
| 872 | m_dwLastPlayPos = 0;
|
---|
| 873 | m_dwPlayProgress = 0;
|
---|
| 874 | m_dwNotifySize = dwNotifySize;
|
---|
| 875 | m_dwNextWriteOffset = 0;
|
---|
| 876 | m_bFillNextNotificationWithSilence = FALSE;
|
---|
| 877 | }
|
---|
| 878 |
|
---|
| 879 |
|
---|
| 880 | //-----------------------------------------------------------------------------
|
---|
| 881 | // Name: CStreamingSound::~CStreamingSound()
|
---|
| 882 | // Desc: Destroys the class
|
---|
| 883 | //-----------------------------------------------------------------------------
|
---|
| 884 | CStreamingSound::~CStreamingSound()
|
---|
| 885 | {
|
---|
| 886 | }
|
---|
| 887 |
|
---|
| 888 |
|
---|
| 889 | //-----------------------------------------------------------------------------
|
---|
| 890 | // Name: CStreamingSound::HandleWaveStreamNotification()
|
---|
| 891 | // Desc: Handle the notification that tells us to put more wav data in the
|
---|
| 892 | // circular buffer
|
---|
| 893 | //-----------------------------------------------------------------------------
|
---|
| 894 | HRESULT CStreamingSound::HandleWaveStreamNotification( BOOL bLoopedPlay )
|
---|
| 895 | {
|
---|
| 896 | HRESULT hr;
|
---|
| 897 | DWORD dwCurrentPlayPos;
|
---|
| 898 | DWORD dwPlayDelta;
|
---|
| 899 | DWORD dwBytesWrittenToBuffer;
|
---|
| 900 | VOID* pDSLockedBuffer = NULL;
|
---|
| 901 | VOID* pDSLockedBuffer2 = NULL;
|
---|
| 902 | DWORD dwDSLockedBufferSize;
|
---|
| 903 | DWORD dwDSLockedBufferSize2;
|
---|
| 904 |
|
---|
| 905 | if( m_apDSBuffer == NULL || m_pWaveFile == NULL )
|
---|
| 906 | return CO_E_NOTINITIALIZED;
|
---|
| 907 |
|
---|
| 908 | // Restore the buffer if it was lost
|
---|
| 909 | BOOL bRestored;
|
---|
| 910 | if( FAILED( hr = RestoreBuffer( m_apDSBuffer[0], &bRestored ) ) )
|
---|
| 911 | return DXUT_ERR( L"RestoreBuffer", hr );
|
---|
| 912 |
|
---|
| 913 | if( bRestored )
|
---|
| 914 | {
|
---|
| 915 | // The buffer was restored, so we need to fill it with new data
|
---|
| 916 | if( FAILED( hr = FillBufferWithSound( m_apDSBuffer[0], FALSE ) ) )
|
---|
| 917 | return DXUT_ERR( L"FillBufferWithSound", hr );
|
---|
| 918 | return S_OK;
|
---|
| 919 | }
|
---|
| 920 |
|
---|
| 921 | // Lock the DirectSound buffer
|
---|
| 922 | if( FAILED( hr = m_apDSBuffer[0]->Lock( m_dwNextWriteOffset, m_dwNotifySize,
|
---|
| 923 | &pDSLockedBuffer, &dwDSLockedBufferSize,
|
---|
| 924 | &pDSLockedBuffer2, &dwDSLockedBufferSize2, 0L ) ) )
|
---|
| 925 | return DXUT_ERR( L"Lock", hr );
|
---|
| 926 |
|
---|
| 927 | // m_dwDSBufferSize and m_dwNextWriteOffset are both multiples of m_dwNotifySize,
|
---|
| 928 | // it should the second buffer, so it should never be valid
|
---|
| 929 | if( pDSLockedBuffer2 != NULL )
|
---|
| 930 | return E_UNEXPECTED;
|
---|
| 931 |
|
---|
| 932 | if( !m_bFillNextNotificationWithSilence )
|
---|
| 933 | {
|
---|
| 934 | // Fill the DirectSound buffer with wav data
|
---|
| 935 | if( FAILED( hr = m_pWaveFile->Read( (BYTE*) pDSLockedBuffer,
|
---|
| 936 | dwDSLockedBufferSize,
|
---|
| 937 | &dwBytesWrittenToBuffer ) ) )
|
---|
| 938 | return DXUT_ERR( L"Read", hr );
|
---|
| 939 | }
|
---|
| 940 | else
|
---|
| 941 | {
|
---|
| 942 | // Fill the DirectSound buffer with silence
|
---|
| 943 | FillMemory( pDSLockedBuffer, dwDSLockedBufferSize,
|
---|
| 944 | (BYTE)( m_pWaveFile->m_pwfx->wBitsPerSample == 8 ? 128 : 0 ) );
|
---|
| 945 | dwBytesWrittenToBuffer = dwDSLockedBufferSize;
|
---|
| 946 | }
|
---|
| 947 |
|
---|
| 948 | // If the number of bytes written is less than the
|
---|
| 949 | // amount we requested, we have a short file.
|
---|
| 950 | if( dwBytesWrittenToBuffer < dwDSLockedBufferSize )
|
---|
| 951 | {
|
---|
| 952 | if( !bLoopedPlay )
|
---|
| 953 | {
|
---|
| 954 | // Fill in silence for the rest of the buffer.
|
---|
| 955 | FillMemory( (BYTE*) pDSLockedBuffer + dwBytesWrittenToBuffer,
|
---|
| 956 | dwDSLockedBufferSize - dwBytesWrittenToBuffer,
|
---|
| 957 | (BYTE)(m_pWaveFile->m_pwfx->wBitsPerSample == 8 ? 128 : 0 ) );
|
---|
| 958 |
|
---|
| 959 | // Any future notifications should just fill the buffer with silence
|
---|
| 960 | m_bFillNextNotificationWithSilence = TRUE;
|
---|
| 961 | }
|
---|
| 962 | else
|
---|
| 963 | {
|
---|
| 964 | // We are looping, so reset the file and fill the buffer with wav data
|
---|
| 965 | DWORD dwReadSoFar = dwBytesWrittenToBuffer; // From previous call above.
|
---|
| 966 | while( dwReadSoFar < dwDSLockedBufferSize )
|
---|
| 967 | {
|
---|
| 968 | // This will keep reading in until the buffer is full (for very short files).
|
---|
| 969 | if( FAILED( hr = m_pWaveFile->ResetFile() ) )
|
---|
| 970 | return DXUT_ERR( L"ResetFile", hr );
|
---|
| 971 |
|
---|
| 972 | if( FAILED( hr = m_pWaveFile->Read( (BYTE*)pDSLockedBuffer + dwReadSoFar,
|
---|
| 973 | dwDSLockedBufferSize - dwReadSoFar,
|
---|
| 974 | &dwBytesWrittenToBuffer ) ) )
|
---|
| 975 | return DXUT_ERR( L"Read", hr );
|
---|
| 976 |
|
---|
| 977 | dwReadSoFar += dwBytesWrittenToBuffer;
|
---|
| 978 | }
|
---|
| 979 | }
|
---|
| 980 | }
|
---|
| 981 |
|
---|
| 982 | // Unlock the DirectSound buffer
|
---|
| 983 | m_apDSBuffer[0]->Unlock( pDSLockedBuffer, dwDSLockedBufferSize, NULL, 0 );
|
---|
| 984 |
|
---|
| 985 | // Figure out how much data has been played so far. When we have played
|
---|
| 986 | // past the end of the file, we will either need to start filling the
|
---|
| 987 | // buffer with silence or starting reading from the beginning of the file,
|
---|
| 988 | // depending if the user wants to loop the sound
|
---|
| 989 | if( FAILED( hr = m_apDSBuffer[0]->GetCurrentPosition( &dwCurrentPlayPos, NULL ) ) )
|
---|
| 990 | return DXUT_ERR( L"GetCurrentPosition", hr );
|
---|
| 991 |
|
---|
| 992 | // Check to see if the position counter looped
|
---|
| 993 | if( dwCurrentPlayPos < m_dwLastPlayPos )
|
---|
| 994 | dwPlayDelta = ( m_dwDSBufferSize - m_dwLastPlayPos ) + dwCurrentPlayPos;
|
---|
| 995 | else
|
---|
| 996 | dwPlayDelta = dwCurrentPlayPos - m_dwLastPlayPos;
|
---|
| 997 |
|
---|
| 998 | m_dwPlayProgress += dwPlayDelta;
|
---|
| 999 | m_dwLastPlayPos = dwCurrentPlayPos;
|
---|
| 1000 |
|
---|
| 1001 | // If we are now filling the buffer with silence, then we have found the end so
|
---|
| 1002 | // check to see if the entire sound has played, if it has then stop the buffer.
|
---|
| 1003 | if( m_bFillNextNotificationWithSilence )
|
---|
| 1004 | {
|
---|
| 1005 | // We don't want to cut off the sound before it's done playing.
|
---|
| 1006 | if( m_dwPlayProgress >= m_pWaveFile->GetSize() )
|
---|
| 1007 | {
|
---|
| 1008 | m_apDSBuffer[0]->Stop();
|
---|
| 1009 | }
|
---|
| 1010 | }
|
---|
| 1011 |
|
---|
| 1012 | // Update where the buffer will lock (for next time)
|
---|
| 1013 | m_dwNextWriteOffset += dwDSLockedBufferSize;
|
---|
| 1014 | m_dwNextWriteOffset %= m_dwDSBufferSize; // Circular buffer
|
---|
| 1015 |
|
---|
| 1016 | return S_OK;
|
---|
| 1017 | }
|
---|
| 1018 |
|
---|
| 1019 |
|
---|
| 1020 | //-----------------------------------------------------------------------------
|
---|
| 1021 | // Name: CStreamingSound::Reset()
|
---|
| 1022 | // Desc: Resets the sound so it will begin playing at the beginning
|
---|
| 1023 | //-----------------------------------------------------------------------------
|
---|
| 1024 | HRESULT CStreamingSound::Reset()
|
---|
| 1025 | {
|
---|
| 1026 | HRESULT hr;
|
---|
| 1027 |
|
---|
| 1028 | if( m_apDSBuffer[0] == NULL || m_pWaveFile == NULL )
|
---|
| 1029 | return CO_E_NOTINITIALIZED;
|
---|
| 1030 |
|
---|
| 1031 | m_dwLastPlayPos = 0;
|
---|
| 1032 | m_dwPlayProgress = 0;
|
---|
| 1033 | m_dwNextWriteOffset = 0;
|
---|
| 1034 | m_bFillNextNotificationWithSilence = FALSE;
|
---|
| 1035 |
|
---|
| 1036 | // Restore the buffer if it was lost
|
---|
| 1037 | BOOL bRestored;
|
---|
| 1038 | if( FAILED( hr = RestoreBuffer( m_apDSBuffer[0], &bRestored ) ) )
|
---|
| 1039 | return DXUT_ERR( L"RestoreBuffer", hr );
|
---|
| 1040 |
|
---|
| 1041 | if( bRestored )
|
---|
| 1042 | {
|
---|
| 1043 | // The buffer was restored, so we need to fill it with new data
|
---|
| 1044 | if( FAILED( hr = FillBufferWithSound( m_apDSBuffer[0], FALSE ) ) )
|
---|
| 1045 | return DXUT_ERR( L"FillBufferWithSound", hr );
|
---|
| 1046 | }
|
---|
| 1047 |
|
---|
| 1048 | m_pWaveFile->ResetFile();
|
---|
| 1049 |
|
---|
| 1050 | return m_apDSBuffer[0]->SetCurrentPosition( 0L );
|
---|
| 1051 | }
|
---|
| 1052 |
|
---|
| 1053 |
|
---|
| 1054 | //-----------------------------------------------------------------------------
|
---|
| 1055 | // Name: CWaveFile::CWaveFile()
|
---|
| 1056 | // Desc: Constructs the class. Call Open() to open a wave file for reading.
|
---|
| 1057 | // Then call Read() as needed. Calling the destructor or Close()
|
---|
| 1058 | // will close the file.
|
---|
| 1059 | //-----------------------------------------------------------------------------
|
---|
| 1060 | CWaveFile::CWaveFile()
|
---|
| 1061 | {
|
---|
| 1062 | m_pwfx = NULL;
|
---|
| 1063 | m_hmmio = NULL;
|
---|
| 1064 | m_pResourceBuffer = NULL;
|
---|
| 1065 | m_dwSize = 0;
|
---|
| 1066 | m_bIsReadingFromMemory = FALSE;
|
---|
| 1067 | }
|
---|
| 1068 |
|
---|
| 1069 |
|
---|
| 1070 | //-----------------------------------------------------------------------------
|
---|
| 1071 | // Name: CWaveFile::~CWaveFile()
|
---|
| 1072 | // Desc: Destructs the class
|
---|
| 1073 | //-----------------------------------------------------------------------------
|
---|
| 1074 | CWaveFile::~CWaveFile()
|
---|
| 1075 | {
|
---|
| 1076 | Close();
|
---|
| 1077 |
|
---|
| 1078 | if( !m_bIsReadingFromMemory )
|
---|
| 1079 | SAFE_DELETE_ARRAY( m_pwfx );
|
---|
| 1080 | }
|
---|
| 1081 |
|
---|
| 1082 |
|
---|
| 1083 | //-----------------------------------------------------------------------------
|
---|
| 1084 | // Name: CWaveFile::Open()
|
---|
| 1085 | // Desc: Opens a wave file for reading
|
---|
| 1086 | //-----------------------------------------------------------------------------
|
---|
| 1087 | HRESULT CWaveFile::Open( LPWSTR strFileName, WAVEFORMATEX* pwfx, DWORD dwFlags )
|
---|
| 1088 | {
|
---|
| 1089 | HRESULT hr;
|
---|
| 1090 |
|
---|
| 1091 | m_dwFlags = dwFlags;
|
---|
| 1092 | m_bIsReadingFromMemory = FALSE;
|
---|
| 1093 |
|
---|
| 1094 | if( m_dwFlags == WAVEFILE_READ )
|
---|
| 1095 | {
|
---|
| 1096 | if( strFileName == NULL )
|
---|
| 1097 | return E_INVALIDARG;
|
---|
| 1098 | SAFE_DELETE_ARRAY( m_pwfx );
|
---|
| 1099 |
|
---|
| 1100 | m_hmmio = mmioOpen( strFileName, NULL, MMIO_ALLOCBUF | MMIO_READ );
|
---|
| 1101 |
|
---|
| 1102 | if( NULL == m_hmmio )
|
---|
| 1103 | {
|
---|
| 1104 | HRSRC hResInfo;
|
---|
| 1105 | HGLOBAL hResData;
|
---|
| 1106 | DWORD dwSize;
|
---|
| 1107 | VOID* pvRes;
|
---|
| 1108 |
|
---|
| 1109 | // Loading it as a file failed, so try it as a resource
|
---|
| 1110 | if( NULL == ( hResInfo = FindResource( NULL, strFileName, L"WAVE" ) ) )
|
---|
| 1111 | {
|
---|
| 1112 | if( NULL == ( hResInfo = FindResource( NULL, strFileName, L"WAV" ) ) )
|
---|
| 1113 | return DXUT_ERR( L"FindResource", E_FAIL );
|
---|
| 1114 | }
|
---|
| 1115 |
|
---|
| 1116 | if( NULL == ( hResData = LoadResource( GetModuleHandle(NULL), hResInfo ) ) )
|
---|
| 1117 | return DXUT_ERR( L"LoadResource", E_FAIL );
|
---|
| 1118 |
|
---|
| 1119 | if( 0 == ( dwSize = SizeofResource( GetModuleHandle(NULL), hResInfo ) ) )
|
---|
| 1120 | return DXUT_ERR( L"SizeofResource", E_FAIL );
|
---|
| 1121 |
|
---|
| 1122 | if( NULL == ( pvRes = LockResource( hResData ) ) )
|
---|
| 1123 | return DXUT_ERR( L"LockResource", E_FAIL );
|
---|
| 1124 |
|
---|
| 1125 | m_pResourceBuffer = new CHAR[ dwSize ];
|
---|
| 1126 | if( m_pResourceBuffer == NULL )
|
---|
| 1127 | return DXUT_ERR( L"new", E_OUTOFMEMORY );
|
---|
| 1128 | memcpy( m_pResourceBuffer, pvRes, dwSize );
|
---|
| 1129 |
|
---|
| 1130 | MMIOINFO mmioInfo;
|
---|
| 1131 | ZeroMemory( &mmioInfo, sizeof(mmioInfo) );
|
---|
| 1132 | mmioInfo.fccIOProc = FOURCC_MEM;
|
---|
| 1133 | mmioInfo.cchBuffer = dwSize;
|
---|
| 1134 | mmioInfo.pchBuffer = (CHAR*) m_pResourceBuffer;
|
---|
| 1135 |
|
---|
| 1136 | m_hmmio = mmioOpen( NULL, &mmioInfo, MMIO_ALLOCBUF | MMIO_READ );
|
---|
| 1137 | }
|
---|
| 1138 |
|
---|
| 1139 | if( FAILED( hr = ReadMMIO() ) )
|
---|
| 1140 | {
|
---|
| 1141 | // ReadMMIO will fail if its an not a wave file
|
---|
| 1142 | mmioClose( m_hmmio, 0 );
|
---|
| 1143 | return DXUT_ERR( L"ReadMMIO", hr );
|
---|
| 1144 | }
|
---|
| 1145 |
|
---|
| 1146 | if( FAILED( hr = ResetFile() ) )
|
---|
| 1147 | return DXUT_ERR( L"ResetFile", hr );
|
---|
| 1148 |
|
---|
| 1149 | // After the reset, the size of the wav file is m_ck.cksize so store it now
|
---|
| 1150 | m_dwSize = m_ck.cksize;
|
---|
| 1151 | }
|
---|
| 1152 | else
|
---|
| 1153 | {
|
---|
| 1154 | m_hmmio = mmioOpen( strFileName, NULL, MMIO_ALLOCBUF |
|
---|
| 1155 | MMIO_READWRITE |
|
---|
| 1156 | MMIO_CREATE );
|
---|
| 1157 | if( NULL == m_hmmio )
|
---|
| 1158 | return DXUT_ERR( L"mmioOpen", E_FAIL );
|
---|
| 1159 |
|
---|
| 1160 | if( FAILED( hr = WriteMMIO( pwfx ) ) )
|
---|
| 1161 | {
|
---|
| 1162 | mmioClose( m_hmmio, 0 );
|
---|
| 1163 | return DXUT_ERR( L"WriteMMIO", hr );
|
---|
| 1164 | }
|
---|
| 1165 |
|
---|
| 1166 | if( FAILED( hr = ResetFile() ) )
|
---|
| 1167 | return DXUT_ERR( L"ResetFile", hr );
|
---|
| 1168 | }
|
---|
| 1169 |
|
---|
| 1170 | return hr;
|
---|
| 1171 | }
|
---|
| 1172 |
|
---|
| 1173 |
|
---|
| 1174 | //-----------------------------------------------------------------------------
|
---|
| 1175 | // Name: CWaveFile::OpenFromMemory()
|
---|
| 1176 | // Desc: copy data to CWaveFile member variable from memory
|
---|
| 1177 | //-----------------------------------------------------------------------------
|
---|
| 1178 | HRESULT CWaveFile::OpenFromMemory( BYTE* pbData, ULONG ulDataSize,
|
---|
| 1179 | WAVEFORMATEX* pwfx, DWORD dwFlags )
|
---|
| 1180 | {
|
---|
| 1181 | m_pwfx = pwfx;
|
---|
| 1182 | m_ulDataSize = ulDataSize;
|
---|
| 1183 | m_pbData = pbData;
|
---|
| 1184 | m_pbDataCur = m_pbData;
|
---|
| 1185 | m_bIsReadingFromMemory = TRUE;
|
---|
| 1186 |
|
---|
| 1187 | if( dwFlags != WAVEFILE_READ )
|
---|
| 1188 | return E_NOTIMPL;
|
---|
| 1189 |
|
---|
| 1190 | return S_OK;
|
---|
| 1191 | }
|
---|
| 1192 |
|
---|
| 1193 |
|
---|
| 1194 | //-----------------------------------------------------------------------------
|
---|
| 1195 | // Name: CWaveFile::ReadMMIO()
|
---|
| 1196 | // Desc: Support function for reading from a multimedia I/O stream.
|
---|
| 1197 | // m_hmmio must be valid before calling. This function uses it to
|
---|
| 1198 | // update m_ckRiff, and m_pwfx.
|
---|
| 1199 | //-----------------------------------------------------------------------------
|
---|
| 1200 | HRESULT CWaveFile::ReadMMIO()
|
---|
| 1201 | {
|
---|
| 1202 | MMCKINFO ckIn; // chunk info. for general use.
|
---|
| 1203 | PCMWAVEFORMAT pcmWaveFormat; // Temp PCM structure to load in.
|
---|
| 1204 |
|
---|
| 1205 | m_pwfx = NULL;
|
---|
| 1206 |
|
---|
| 1207 | if( ( 0 != mmioDescend( m_hmmio, &m_ckRiff, NULL, 0 ) ) )
|
---|
| 1208 | return DXUT_ERR( L"mmioDescend", E_FAIL );
|
---|
| 1209 |
|
---|
| 1210 | // Check to make sure this is a valid wave file
|
---|
| 1211 | if( (m_ckRiff.ckid != FOURCC_RIFF) ||
|
---|
| 1212 | (m_ckRiff.fccType != mmioFOURCC('W', 'A', 'V', 'E') ) )
|
---|
| 1213 | return DXUT_ERR( L"mmioFOURCC", E_FAIL );
|
---|
| 1214 |
|
---|
| 1215 | // Search the input file for for the 'fmt ' chunk.
|
---|
| 1216 | ckIn.ckid = mmioFOURCC('f', 'm', 't', ' ');
|
---|
| 1217 | if( 0 != mmioDescend( m_hmmio, &ckIn, &m_ckRiff, MMIO_FINDCHUNK ) )
|
---|
| 1218 | return DXUT_ERR( L"mmioDescend", E_FAIL );
|
---|
| 1219 |
|
---|
| 1220 | // Expect the 'fmt' chunk to be at least as large as <PCMWAVEFORMAT>;
|
---|
| 1221 | // if there are extra parameters at the end, we'll ignore them
|
---|
| 1222 | if( ckIn.cksize < (LONG) sizeof(PCMWAVEFORMAT) )
|
---|
| 1223 | return DXUT_ERR( L"sizeof(PCMWAVEFORMAT)", E_FAIL );
|
---|
| 1224 |
|
---|
| 1225 | // Read the 'fmt ' chunk into <pcmWaveFormat>.
|
---|
| 1226 | if( mmioRead( m_hmmio, (HPSTR) &pcmWaveFormat,
|
---|
| 1227 | sizeof(pcmWaveFormat)) != sizeof(pcmWaveFormat) )
|
---|
| 1228 | return DXUT_ERR( L"mmioRead", E_FAIL );
|
---|
| 1229 |
|
---|
| 1230 | // Allocate the waveformatex, but if its not pcm format, read the next
|
---|
| 1231 | // word, and thats how many extra bytes to allocate.
|
---|
| 1232 | if( pcmWaveFormat.wf.wFormatTag == WAVE_FORMAT_PCM )
|
---|
| 1233 | {
|
---|
| 1234 | m_pwfx = (WAVEFORMATEX*)new CHAR[ sizeof(WAVEFORMATEX) ];
|
---|
| 1235 | if( NULL == m_pwfx )
|
---|
| 1236 | return DXUT_ERR( L"m_pwfx", E_FAIL );
|
---|
| 1237 |
|
---|
| 1238 | // Copy the bytes from the pcm structure to the waveformatex structure
|
---|
| 1239 | memcpy( m_pwfx, &pcmWaveFormat, sizeof(pcmWaveFormat) );
|
---|
| 1240 | m_pwfx->cbSize = 0;
|
---|
| 1241 | }
|
---|
| 1242 | else
|
---|
| 1243 | {
|
---|
| 1244 | // Read in length of extra bytes.
|
---|
| 1245 | WORD cbExtraBytes = 0L;
|
---|
| 1246 | if( mmioRead( m_hmmio, (CHAR*)&cbExtraBytes, sizeof(WORD)) != sizeof(WORD) )
|
---|
| 1247 | return DXUT_ERR( L"mmioRead", E_FAIL );
|
---|
| 1248 |
|
---|
| 1249 | m_pwfx = (WAVEFORMATEX*)new CHAR[ sizeof(WAVEFORMATEX) + cbExtraBytes ];
|
---|
| 1250 | if( NULL == m_pwfx )
|
---|
| 1251 | return DXUT_ERR( L"new", E_FAIL );
|
---|
| 1252 |
|
---|
| 1253 | // Copy the bytes from the pcm structure to the waveformatex structure
|
---|
| 1254 | memcpy( m_pwfx, &pcmWaveFormat, sizeof(pcmWaveFormat) );
|
---|
| 1255 | m_pwfx->cbSize = cbExtraBytes;
|
---|
| 1256 |
|
---|
| 1257 | // Now, read those extra bytes into the structure, if cbExtraAlloc != 0.
|
---|
| 1258 | if( mmioRead( m_hmmio, (CHAR*)(((BYTE*)&(m_pwfx->cbSize))+sizeof(WORD)),
|
---|
| 1259 | cbExtraBytes ) != cbExtraBytes )
|
---|
| 1260 | {
|
---|
| 1261 | SAFE_DELETE( m_pwfx );
|
---|
| 1262 | return DXUT_ERR( L"mmioRead", E_FAIL );
|
---|
| 1263 | }
|
---|
| 1264 | }
|
---|
| 1265 |
|
---|
| 1266 | // Ascend the input file out of the 'fmt ' chunk.
|
---|
| 1267 | if( 0 != mmioAscend( m_hmmio, &ckIn, 0 ) )
|
---|
| 1268 | {
|
---|
| 1269 | SAFE_DELETE( m_pwfx );
|
---|
| 1270 | return DXUT_ERR( L"mmioAscend", E_FAIL );
|
---|
| 1271 | }
|
---|
| 1272 |
|
---|
| 1273 | return S_OK;
|
---|
| 1274 | }
|
---|
| 1275 |
|
---|
| 1276 |
|
---|
| 1277 | //-----------------------------------------------------------------------------
|
---|
| 1278 | // Name: CWaveFile::GetSize()
|
---|
| 1279 | // Desc: Retuns the size of the read access wave file
|
---|
| 1280 | //-----------------------------------------------------------------------------
|
---|
| 1281 | DWORD CWaveFile::GetSize()
|
---|
| 1282 | {
|
---|
| 1283 | return m_dwSize;
|
---|
| 1284 | }
|
---|
| 1285 |
|
---|
| 1286 |
|
---|
| 1287 | //-----------------------------------------------------------------------------
|
---|
| 1288 | // Name: CWaveFile::ResetFile()
|
---|
| 1289 | // Desc: Resets the internal m_ck pointer so reading starts from the
|
---|
| 1290 | // beginning of the file again
|
---|
| 1291 | //-----------------------------------------------------------------------------
|
---|
| 1292 | HRESULT CWaveFile::ResetFile()
|
---|
| 1293 | {
|
---|
| 1294 | if( m_bIsReadingFromMemory )
|
---|
| 1295 | {
|
---|
| 1296 | m_pbDataCur = m_pbData;
|
---|
| 1297 | }
|
---|
| 1298 | else
|
---|
| 1299 | {
|
---|
| 1300 | if( m_hmmio == NULL )
|
---|
| 1301 | return CO_E_NOTINITIALIZED;
|
---|
| 1302 |
|
---|
| 1303 | if( m_dwFlags == WAVEFILE_READ )
|
---|
| 1304 | {
|
---|
| 1305 | // Seek to the data
|
---|
| 1306 | if( -1 == mmioSeek( m_hmmio, m_ckRiff.dwDataOffset + sizeof(FOURCC),
|
---|
| 1307 | SEEK_SET ) )
|
---|
| 1308 | return DXUT_ERR( L"mmioSeek", E_FAIL );
|
---|
| 1309 |
|
---|
| 1310 | // Search the input file for the 'data' chunk.
|
---|
| 1311 | m_ck.ckid = mmioFOURCC('d', 'a', 't', 'a');
|
---|
| 1312 | if( 0 != mmioDescend( m_hmmio, &m_ck, &m_ckRiff, MMIO_FINDCHUNK ) )
|
---|
| 1313 | return DXUT_ERR( L"mmioDescend", E_FAIL );
|
---|
| 1314 | }
|
---|
| 1315 | else
|
---|
| 1316 | {
|
---|
| 1317 | // Create the 'data' chunk that holds the waveform samples.
|
---|
| 1318 | m_ck.ckid = mmioFOURCC('d', 'a', 't', 'a');
|
---|
| 1319 | m_ck.cksize = 0;
|
---|
| 1320 |
|
---|
| 1321 | if( 0 != mmioCreateChunk( m_hmmio, &m_ck, 0 ) )
|
---|
| 1322 | return DXUT_ERR( L"mmioCreateChunk", E_FAIL );
|
---|
| 1323 |
|
---|
| 1324 | if( 0 != mmioGetInfo( m_hmmio, &m_mmioinfoOut, 0 ) )
|
---|
| 1325 | return DXUT_ERR( L"mmioGetInfo", E_FAIL );
|
---|
| 1326 | }
|
---|
| 1327 | }
|
---|
| 1328 |
|
---|
| 1329 | return S_OK;
|
---|
| 1330 | }
|
---|
| 1331 |
|
---|
| 1332 |
|
---|
| 1333 | //-----------------------------------------------------------------------------
|
---|
| 1334 | // Name: CWaveFile::Read()
|
---|
| 1335 | // Desc: Reads section of data from a wave file into pBuffer and returns
|
---|
| 1336 | // how much read in pdwSizeRead, reading not more than dwSizeToRead.
|
---|
| 1337 | // This uses m_ck to determine where to start reading from. So
|
---|
| 1338 | // subsequent calls will be continue where the last left off unless
|
---|
| 1339 | // Reset() is called.
|
---|
| 1340 | //-----------------------------------------------------------------------------
|
---|
| 1341 | HRESULT CWaveFile::Read( BYTE* pBuffer, DWORD dwSizeToRead, DWORD* pdwSizeRead )
|
---|
| 1342 | {
|
---|
| 1343 | if( m_bIsReadingFromMemory )
|
---|
| 1344 | {
|
---|
| 1345 | if( m_pbDataCur == NULL )
|
---|
| 1346 | return CO_E_NOTINITIALIZED;
|
---|
| 1347 | if( pdwSizeRead != NULL )
|
---|
| 1348 | *pdwSizeRead = 0;
|
---|
| 1349 |
|
---|
| 1350 | if( (BYTE*)(m_pbDataCur + dwSizeToRead) >
|
---|
| 1351 | (BYTE*)(m_pbData + m_ulDataSize) )
|
---|
| 1352 | {
|
---|
| 1353 | dwSizeToRead = m_ulDataSize - (DWORD)(m_pbDataCur - m_pbData);
|
---|
| 1354 | }
|
---|
| 1355 |
|
---|
| 1356 | CopyMemory( pBuffer, m_pbDataCur, dwSizeToRead );
|
---|
| 1357 |
|
---|
| 1358 | if( pdwSizeRead != NULL )
|
---|
| 1359 | *pdwSizeRead = dwSizeToRead;
|
---|
| 1360 |
|
---|
| 1361 | return S_OK;
|
---|
| 1362 | }
|
---|
| 1363 | else
|
---|
| 1364 | {
|
---|
| 1365 | MMIOINFO mmioinfoIn; // current status of m_hmmio
|
---|
| 1366 |
|
---|
| 1367 | if( m_hmmio == NULL )
|
---|
| 1368 | return CO_E_NOTINITIALIZED;
|
---|
| 1369 | if( pBuffer == NULL || pdwSizeRead == NULL )
|
---|
| 1370 | return E_INVALIDARG;
|
---|
| 1371 |
|
---|
| 1372 | if( pdwSizeRead != NULL )
|
---|
| 1373 | *pdwSizeRead = 0;
|
---|
| 1374 |
|
---|
| 1375 | if( 0 != mmioGetInfo( m_hmmio, &mmioinfoIn, 0 ) )
|
---|
| 1376 | return DXUT_ERR( L"mmioGetInfo", E_FAIL );
|
---|
| 1377 |
|
---|
| 1378 | UINT cbDataIn = dwSizeToRead;
|
---|
| 1379 | if( cbDataIn > m_ck.cksize )
|
---|
| 1380 | cbDataIn = m_ck.cksize;
|
---|
| 1381 |
|
---|
| 1382 | m_ck.cksize -= cbDataIn;
|
---|
| 1383 |
|
---|
| 1384 | for( DWORD cT = 0; cT < cbDataIn; cT++ )
|
---|
| 1385 | {
|
---|
| 1386 | // Copy the bytes from the io to the buffer.
|
---|
| 1387 | if( mmioinfoIn.pchNext == mmioinfoIn.pchEndRead )
|
---|
| 1388 | {
|
---|
| 1389 | if( 0 != mmioAdvance( m_hmmio, &mmioinfoIn, MMIO_READ ) )
|
---|
| 1390 | return DXUT_ERR( L"mmioAdvance", E_FAIL );
|
---|
| 1391 |
|
---|
| 1392 | if( mmioinfoIn.pchNext == mmioinfoIn.pchEndRead )
|
---|
| 1393 | return DXUT_ERR( L"mmioinfoIn.pchNext", E_FAIL );
|
---|
| 1394 | }
|
---|
| 1395 |
|
---|
| 1396 | // Actual copy.
|
---|
| 1397 | *((BYTE*)pBuffer+cT) = *((BYTE*)mmioinfoIn.pchNext);
|
---|
| 1398 | mmioinfoIn.pchNext++;
|
---|
| 1399 | }
|
---|
| 1400 |
|
---|
| 1401 | if( 0 != mmioSetInfo( m_hmmio, &mmioinfoIn, 0 ) )
|
---|
| 1402 | return DXUT_ERR( L"mmioSetInfo", E_FAIL );
|
---|
| 1403 |
|
---|
| 1404 | if( pdwSizeRead != NULL )
|
---|
| 1405 | *pdwSizeRead = cbDataIn;
|
---|
| 1406 |
|
---|
| 1407 | return S_OK;
|
---|
| 1408 | }
|
---|
| 1409 | }
|
---|
| 1410 |
|
---|
| 1411 |
|
---|
| 1412 | //-----------------------------------------------------------------------------
|
---|
| 1413 | // Name: CWaveFile::Close()
|
---|
| 1414 | // Desc: Closes the wave file
|
---|
| 1415 | //-----------------------------------------------------------------------------
|
---|
| 1416 | HRESULT CWaveFile::Close()
|
---|
| 1417 | {
|
---|
| 1418 | if( m_dwFlags == WAVEFILE_READ )
|
---|
| 1419 | {
|
---|
| 1420 | mmioClose( m_hmmio, 0 );
|
---|
| 1421 | m_hmmio = NULL;
|
---|
| 1422 | SAFE_DELETE_ARRAY( m_pResourceBuffer );
|
---|
| 1423 | }
|
---|
| 1424 | else
|
---|
| 1425 | {
|
---|
| 1426 | m_mmioinfoOut.dwFlags |= MMIO_DIRTY;
|
---|
| 1427 |
|
---|
| 1428 | if( m_hmmio == NULL )
|
---|
| 1429 | return CO_E_NOTINITIALIZED;
|
---|
| 1430 |
|
---|
| 1431 | if( 0 != mmioSetInfo( m_hmmio, &m_mmioinfoOut, 0 ) )
|
---|
| 1432 | return DXUT_ERR( L"mmioSetInfo", E_FAIL );
|
---|
| 1433 |
|
---|
| 1434 | // Ascend the output file out of the 'data' chunk -- this will cause
|
---|
| 1435 | // the chunk size of the 'data' chunk to be written.
|
---|
| 1436 | if( 0 != mmioAscend( m_hmmio, &m_ck, 0 ) )
|
---|
| 1437 | return DXUT_ERR( L"mmioAscend", E_FAIL );
|
---|
| 1438 |
|
---|
| 1439 | // Do this here instead...
|
---|
| 1440 | if( 0 != mmioAscend( m_hmmio, &m_ckRiff, 0 ) )
|
---|
| 1441 | return DXUT_ERR( L"mmioAscend", E_FAIL );
|
---|
| 1442 |
|
---|
| 1443 | mmioSeek( m_hmmio, 0, SEEK_SET );
|
---|
| 1444 |
|
---|
| 1445 | if( 0 != (INT)mmioDescend( m_hmmio, &m_ckRiff, NULL, 0 ) )
|
---|
| 1446 | return DXUT_ERR( L"mmioDescend", E_FAIL );
|
---|
| 1447 |
|
---|
| 1448 | m_ck.ckid = mmioFOURCC('f', 'a', 'c', 't');
|
---|
| 1449 |
|
---|
| 1450 | if( 0 == mmioDescend( m_hmmio, &m_ck, &m_ckRiff, MMIO_FINDCHUNK ) )
|
---|
| 1451 | {
|
---|
| 1452 | DWORD dwSamples = 0;
|
---|
| 1453 | mmioWrite( m_hmmio, (HPSTR)&dwSamples, sizeof(DWORD) );
|
---|
| 1454 | mmioAscend( m_hmmio, &m_ck, 0 );
|
---|
| 1455 | }
|
---|
| 1456 |
|
---|
| 1457 | // Ascend the output file out of the 'RIFF' chunk -- this will cause
|
---|
| 1458 | // the chunk size of the 'RIFF' chunk to be written.
|
---|
| 1459 | if( 0 != mmioAscend( m_hmmio, &m_ckRiff, 0 ) )
|
---|
| 1460 | return DXUT_ERR( L"mmioAscend", E_FAIL );
|
---|
| 1461 |
|
---|
| 1462 | mmioClose( m_hmmio, 0 );
|
---|
| 1463 | m_hmmio = NULL;
|
---|
| 1464 | }
|
---|
| 1465 |
|
---|
| 1466 | return S_OK;
|
---|
| 1467 | }
|
---|
| 1468 |
|
---|
| 1469 |
|
---|
| 1470 | //-----------------------------------------------------------------------------
|
---|
| 1471 | // Name: CWaveFile::WriteMMIO()
|
---|
| 1472 | // Desc: Support function for reading from a multimedia I/O stream
|
---|
| 1473 | // pwfxDest is the WAVEFORMATEX for this new wave file.
|
---|
| 1474 | // m_hmmio must be valid before calling. This function uses it to
|
---|
| 1475 | // update m_ckRiff, and m_ck.
|
---|
| 1476 | //-----------------------------------------------------------------------------
|
---|
| 1477 | HRESULT CWaveFile::WriteMMIO( WAVEFORMATEX *pwfxDest )
|
---|
| 1478 | {
|
---|
| 1479 | DWORD dwFactChunk; // Contains the actual fact chunk. Garbage until WaveCloseWriteFile.
|
---|
| 1480 | MMCKINFO ckOut1;
|
---|
| 1481 |
|
---|
| 1482 | dwFactChunk = (DWORD)-1;
|
---|
| 1483 |
|
---|
| 1484 | // Create the output file RIFF chunk of form type 'WAVE'.
|
---|
| 1485 | m_ckRiff.fccType = mmioFOURCC('W', 'A', 'V', 'E');
|
---|
| 1486 | m_ckRiff.cksize = 0;
|
---|
| 1487 |
|
---|
| 1488 | if( 0 != mmioCreateChunk( m_hmmio, &m_ckRiff, MMIO_CREATERIFF ) )
|
---|
| 1489 | return DXUT_ERR( L"mmioCreateChunk", E_FAIL );
|
---|
| 1490 |
|
---|
| 1491 | // We are now descended into the 'RIFF' chunk we just created.
|
---|
| 1492 | // Now create the 'fmt ' chunk. Since we know the size of this chunk,
|
---|
| 1493 | // specify it in the MMCKINFO structure so MMIO doesn't have to seek
|
---|
| 1494 | // back and set the chunk size after ascending from the chunk.
|
---|
| 1495 | m_ck.ckid = mmioFOURCC('f', 'm', 't', ' ');
|
---|
| 1496 | m_ck.cksize = sizeof(PCMWAVEFORMAT);
|
---|
| 1497 |
|
---|
| 1498 | if( 0 != mmioCreateChunk( m_hmmio, &m_ck, 0 ) )
|
---|
| 1499 | return DXUT_ERR( L"mmioCreateChunk", E_FAIL );
|
---|
| 1500 |
|
---|
| 1501 | // Write the PCMWAVEFORMAT structure to the 'fmt ' chunk if its that type.
|
---|
| 1502 | if( pwfxDest->wFormatTag == WAVE_FORMAT_PCM )
|
---|
| 1503 | {
|
---|
| 1504 | if( mmioWrite( m_hmmio, (HPSTR) pwfxDest,
|
---|
| 1505 | sizeof(PCMWAVEFORMAT)) != sizeof(PCMWAVEFORMAT))
|
---|
| 1506 | return DXUT_ERR( L"mmioWrite", E_FAIL );
|
---|
| 1507 | }
|
---|
| 1508 | else
|
---|
| 1509 | {
|
---|
| 1510 | // Write the variable length size.
|
---|
| 1511 | if( (UINT)mmioWrite( m_hmmio, (HPSTR) pwfxDest,
|
---|
| 1512 | sizeof(*pwfxDest) + pwfxDest->cbSize ) !=
|
---|
| 1513 | ( sizeof(*pwfxDest) + pwfxDest->cbSize ) )
|
---|
| 1514 | return DXUT_ERR( L"mmioWrite", E_FAIL );
|
---|
| 1515 | }
|
---|
| 1516 |
|
---|
| 1517 | // Ascend out of the 'fmt ' chunk, back into the 'RIFF' chunk.
|
---|
| 1518 | if( 0 != mmioAscend( m_hmmio, &m_ck, 0 ) )
|
---|
| 1519 | return DXUT_ERR( L"mmioAscend", E_FAIL );
|
---|
| 1520 |
|
---|
| 1521 | // Now create the fact chunk, not required for PCM but nice to have. This is filled
|
---|
| 1522 | // in when the close routine is called.
|
---|
| 1523 | ckOut1.ckid = mmioFOURCC('f', 'a', 'c', 't');
|
---|
| 1524 | ckOut1.cksize = 0;
|
---|
| 1525 |
|
---|
| 1526 | if( 0 != mmioCreateChunk( m_hmmio, &ckOut1, 0 ) )
|
---|
| 1527 | return DXUT_ERR( L"mmioCreateChunk", E_FAIL );
|
---|
| 1528 |
|
---|
| 1529 | if( mmioWrite( m_hmmio, (HPSTR)&dwFactChunk, sizeof(dwFactChunk)) !=
|
---|
| 1530 | sizeof(dwFactChunk) )
|
---|
| 1531 | return DXUT_ERR( L"mmioWrite", E_FAIL );
|
---|
| 1532 |
|
---|
| 1533 | // Now ascend out of the fact chunk...
|
---|
| 1534 | if( 0 != mmioAscend( m_hmmio, &ckOut1, 0 ) )
|
---|
| 1535 | return DXUT_ERR( L"mmioAscend", E_FAIL );
|
---|
| 1536 |
|
---|
| 1537 | return S_OK;
|
---|
| 1538 | }
|
---|
| 1539 |
|
---|
| 1540 |
|
---|
| 1541 | //-----------------------------------------------------------------------------
|
---|
| 1542 | // Name: CWaveFile::Write()
|
---|
| 1543 | // Desc: Writes data to the open wave file
|
---|
| 1544 | //-----------------------------------------------------------------------------
|
---|
| 1545 | HRESULT CWaveFile::Write( UINT nSizeToWrite, BYTE* pbSrcData, UINT* pnSizeWrote )
|
---|
| 1546 | {
|
---|
| 1547 | UINT cT;
|
---|
| 1548 |
|
---|
| 1549 | if( m_bIsReadingFromMemory )
|
---|
| 1550 | return E_NOTIMPL;
|
---|
| 1551 | if( m_hmmio == NULL )
|
---|
| 1552 | return CO_E_NOTINITIALIZED;
|
---|
| 1553 | if( pnSizeWrote == NULL || pbSrcData == NULL )
|
---|
| 1554 | return E_INVALIDARG;
|
---|
| 1555 |
|
---|
| 1556 | *pnSizeWrote = 0;
|
---|
| 1557 |
|
---|
| 1558 | for( cT = 0; cT < nSizeToWrite; cT++ )
|
---|
| 1559 | {
|
---|
| 1560 | if( m_mmioinfoOut.pchNext == m_mmioinfoOut.pchEndWrite )
|
---|
| 1561 | {
|
---|
| 1562 | m_mmioinfoOut.dwFlags |= MMIO_DIRTY;
|
---|
| 1563 | if( 0 != mmioAdvance( m_hmmio, &m_mmioinfoOut, MMIO_WRITE ) )
|
---|
| 1564 | return DXUT_ERR( L"mmioAdvance", E_FAIL );
|
---|
| 1565 | }
|
---|
| 1566 |
|
---|
| 1567 | *((BYTE*)m_mmioinfoOut.pchNext) = *((BYTE*)pbSrcData+cT);
|
---|
| 1568 | (BYTE*)m_mmioinfoOut.pchNext++;
|
---|
| 1569 |
|
---|
| 1570 | (*pnSizeWrote)++;
|
---|
| 1571 | }
|
---|
| 1572 |
|
---|
| 1573 | return S_OK;
|
---|
| 1574 | }
|
---|