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- #include "../idlib/precompiled.h"
- #pragma hdrstop
- #include "snd_local.h"
- idWaveFile::idWaveFile( void ) {
- memset( &mpwfx, 0, sizeof( waveformatextensible_t ) );
- mhmmio = NULL;
- mdwSize = 0;
- mseekBase = 0;
- mbIsReadingFromMemory = false;
- mpbData = NULL;
- ogg = NULL;
- isOgg = false;
- }
- idWaveFile::~idWaveFile( void ) {
- Close();
- if ( mbIsReadingFromMemory && mpbData ) {
- Mem_Free( mpbData );
- }
- memset( &mpwfx, 0, sizeof( waveformatextensible_t ) );
- }
- int idWaveFile::Open( const char* strFileName, waveformatex_t* pwfx ) {
- mbIsReadingFromMemory = false;
- mpbData = NULL;
- mpbDataCur = mpbData;
- if( strFileName == NULL ) {
- return -1;
- }
- idStr name = strFileName;
-
- name.SetFileExtension( ".ogg" );
- if ( fileSystem->ReadFile( name, NULL, NULL ) != -1 ) {
- return OpenOGG( name, pwfx );
- }
- memset( &mpwfx, 0, sizeof( waveformatextensible_t ) );
- mhmmio = fileSystem->OpenFileRead( strFileName );
- if ( !mhmmio ) {
- mdwSize = 0;
- return -1;
- }
- if ( mhmmio->Length() <= 0 ) {
- mhmmio = NULL;
- return -1;
- }
- if ( ReadMMIO() != 0 ) {
-
- Close();
- return -1;
- }
- mfileTime = mhmmio->Timestamp();
- if ( ResetFile() != 0 ) {
- Close();
- return -1;
- }
-
- mdwSize = mck.cksize / sizeof( short );
- mMemSize = mck.cksize;
- if ( mck.cksize != 0xffffffff ) {
- if ( pwfx ) {
- memcpy( pwfx, (waveformatex_t *)&mpwfx, sizeof(waveformatex_t));
- }
- return 0;
- }
- return -1;
- }
- int idWaveFile::OpenFromMemory( short* pbData, int ulDataSize, waveformatextensible_t* pwfx ) {
- mpwfx = *pwfx;
- mulDataSize = ulDataSize;
- mpbData = pbData;
- mpbDataCur = mpbData;
- mdwSize = ulDataSize / sizeof( short );
- mMemSize = ulDataSize;
- mbIsReadingFromMemory = true;
- return 0;
- }
- int idWaveFile::ReadMMIO( void ) {
- mminfo_t ckIn;
- pcmwaveformat_t pcmWaveFormat;
- memset( &mpwfx, 0, sizeof( waveformatextensible_t ) );
- mhmmio->Read( &mckRiff, 12 );
- assert( !isOgg );
- mckRiff.ckid = LittleLong( mckRiff.ckid );
- mckRiff.cksize = LittleLong( mckRiff.cksize );
- mckRiff.fccType = LittleLong( mckRiff.fccType );
- mckRiff.dwDataOffset = 12;
-
- if( (mckRiff.ckid != fourcc_riff) || (mckRiff.fccType != mmioFOURCC('W', 'A', 'V', 'E') ) ) {
- return -1;
- }
-
- ckIn.dwDataOffset = 12;
- do {
- if (8 != mhmmio->Read( &ckIn, 8 ) ) {
- return -1;
- }
- assert( !isOgg );
- ckIn.ckid = LittleLong( ckIn.ckid );
- ckIn.cksize = LittleLong( ckIn.cksize );
- ckIn.dwDataOffset += ckIn.cksize-8;
- } while (ckIn.ckid != mmioFOURCC('f', 'm', 't', ' '));
-
-
- if( ckIn.cksize < sizeof(pcmwaveformat_t) ) {
- return -1;
- }
-
- if( mhmmio->Read( &pcmWaveFormat, sizeof(pcmWaveFormat) ) != sizeof(pcmWaveFormat) ) {
- return -1;
- }
- assert( !isOgg );
- pcmWaveFormat.wf.wFormatTag = LittleShort( pcmWaveFormat.wf.wFormatTag );
- pcmWaveFormat.wf.nChannels = LittleShort( pcmWaveFormat.wf.nChannels );
- pcmWaveFormat.wf.nSamplesPerSec = LittleLong( pcmWaveFormat.wf.nSamplesPerSec );
- pcmWaveFormat.wf.nAvgBytesPerSec = LittleLong( pcmWaveFormat.wf.nAvgBytesPerSec );
- pcmWaveFormat.wf.nBlockAlign = LittleShort( pcmWaveFormat.wf.nBlockAlign );
- pcmWaveFormat.wBitsPerSample = LittleShort( pcmWaveFormat.wBitsPerSample );
-
- memcpy( &mpwfx, &pcmWaveFormat, sizeof(pcmWaveFormat) );
-
-
- if( pcmWaveFormat.wf.wFormatTag == WAVE_FORMAT_TAG_PCM ) {
- mpwfx.Format.cbSize = 0;
- } else {
- return -1;
- #if 0
-
- word cbExtraBytes = 0L;
- if( mhmmio->Read( (char*)&cbExtraBytes, sizeof(word) ) != sizeof(word) )
- return -1;
- mpwfx.Format.cbSize = cbExtraBytes;
-
- if( mhmmio->Read( (char*)(((byte*)&(mpwfx.Format.cbSize))+sizeof(word)), cbExtraBytes ) != cbExtraBytes ) {
- memset( &mpwfx, 0, sizeof( waveformatextensible_t ) );
- return -1;
- }
- #endif
- }
- return 0;
- }
- int idWaveFile::ResetFile( void ) {
- if( mbIsReadingFromMemory ) {
- mpbDataCur = mpbData;
- } else {
- if( mhmmio == NULL ) {
- return -1;
- }
-
- if( -1 == mhmmio->Seek( mckRiff.dwDataOffset + sizeof(fourcc), FS_SEEK_SET ) ) {
- return -1;
- }
-
- mck.ckid = 0;
- do {
- byte ioin;
- if ( !mhmmio->Read( &ioin, 1 ) ) {
- return -1;
- }
- mck.ckid = (mck.ckid>>8) | (ioin<<24);
- } while (mck.ckid != mmioFOURCC('d', 'a', 't', 'a'));
-
- mhmmio->Read( &mck.cksize, 4 );
- assert( !isOgg );
- mck.cksize = LittleLong( mck.cksize );
- mseekBase = mhmmio->Tell();
- }
-
- return 0;
- }
- int idWaveFile::Read( byte* pBuffer, int dwSizeToRead, int *pdwSizeRead ) {
- if ( ogg != NULL ) {
- return ReadOGG( pBuffer, dwSizeToRead, pdwSizeRead );
- } else if ( mbIsReadingFromMemory ) {
- if( mpbDataCur == NULL ) {
- return -1;
- }
- if( (byte*)(mpbDataCur + dwSizeToRead) > (byte*)(mpbData + mulDataSize) ) {
- dwSizeToRead = mulDataSize - (int)(mpbDataCur - mpbData);
- }
- SIMDProcessor->Memcpy( pBuffer, mpbDataCur, dwSizeToRead );
- mpbDataCur += dwSizeToRead;
- if ( pdwSizeRead != NULL ) {
- *pdwSizeRead = dwSizeToRead;
- }
- return dwSizeToRead;
- } else {
- if( mhmmio == NULL ) {
- return -1;
- }
- if( pBuffer == NULL ) {
- return -1;
- }
-
- dwSizeToRead = mhmmio->Read( pBuffer, dwSizeToRead );
-
- if ( !isOgg ) {
- LittleRevBytes( pBuffer, 2, dwSizeToRead / 2 );
- }
- if ( pdwSizeRead != NULL ) {
- *pdwSizeRead = dwSizeToRead;
- }
- return dwSizeToRead;
- }
- }
- int idWaveFile::Close( void ) {
- if ( ogg != NULL ) {
- return CloseOGG();
- }
- if( mhmmio != NULL ) {
- fileSystem->CloseFile( mhmmio );
- mhmmio = NULL;
- }
- return 0;
- }
- int idWaveFile::Seek( int offset ) {
- if ( ogg != NULL ) {
- common->FatalError( "idWaveFile::Seek: cannot seek on an OGG file\n" );
- } else if( mbIsReadingFromMemory ) {
- mpbDataCur = mpbData + offset;
- } else {
- if( mhmmio == NULL ) {
- return -1;
- }
- if ((int)(offset+mseekBase) == mhmmio->Tell()) {
- return 0;
- }
- mhmmio->Seek( offset + mseekBase, FS_SEEK_SET );
- return 0;
- }
- return -1;
- }
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