mirror of
https://github.com/dhewm/dhewm3.git
synced 2024-11-26 14:21:18 +00:00
1c13fe2d39
Seems to work; note that idWaveFile is only ever used in idSoundSample::Load() As stb_vorbis doesn't support custom callbacks for reading, I feed it the full .ogg files as a buffer. Shouldn't make much of a difference though - either the whole file is decoded on load anyway (so the buffer is freed after decoding, or it's streamed, but in that case the old code also kept the whole ogg file in memory by using idFily_Memory. I also added warning messages in places where calls to stb_vorbis_*() can fail, where there were none in the equivalent libvorbis code.
355 lines
11 KiB
C++
355 lines
11 KiB
C++
/*
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===========================================================================
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Doom 3 GPL Source Code
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Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
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This file is part of the Doom 3 GPL Source Code ("Doom 3 Source Code").
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Doom 3 Source Code is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Doom 3 Source Code is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
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In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
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If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
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===========================================================================
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*/
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#include "sys/platform.h"
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#include "framework/FileSystem.h"
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#include "sound/snd_local.h"
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//-----------------------------------------------------------------------------
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// Name: idWaveFile::idWaveFile()
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// Desc: Constructs the class. Call Open() to open a wave file for reading.
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// Then call Read() as needed. Calling the destructor or Close()
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// will close the file.
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//-----------------------------------------------------------------------------
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idWaveFile::idWaveFile( void ) {
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memset( &mpwfx, 0, sizeof( waveformatextensible_t ) );
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mhmmio = NULL;
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mdwSize = 0;
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mseekBase = 0;
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mbIsReadingFromMemory = false;
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mpbData = NULL;
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ogg = NULL;
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isOgg = false;
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oggData = NULL;
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}
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//-----------------------------------------------------------------------------
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// Name: idWaveFile::~idWaveFile()
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// Desc: Destructs the class
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//-----------------------------------------------------------------------------
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idWaveFile::~idWaveFile( void ) {
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Close();
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if ( mbIsReadingFromMemory && mpbData ) {
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Mem_Free( mpbData );
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}
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memset( &mpwfx, 0, sizeof( waveformatextensible_t ) );
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}
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//-----------------------------------------------------------------------------
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// Name: idWaveFile::Open()
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// Desc: Opens a wave file for reading
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//-----------------------------------------------------------------------------
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int idWaveFile::Open( const char* strFileName, waveformatex_t* pwfx ) {
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mbIsReadingFromMemory = false;
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mpbData = NULL;
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mpbDataCur = mpbData;
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if( strFileName == NULL ) {
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return -1;
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}
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idStr name = strFileName;
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// note: used to only check for .wav when making a build
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name.SetFileExtension( ".ogg" );
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if ( fileSystem->ReadFile( name, NULL, NULL ) != -1 ) {
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return OpenOGG( name, pwfx );
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}
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memset( &mpwfx, 0, sizeof( waveformatextensible_t ) );
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mhmmio = fileSystem->OpenFileRead( strFileName );
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if ( !mhmmio ) {
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mdwSize = 0;
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return -1;
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}
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if ( mhmmio->Length() <= 0 ) {
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mhmmio = NULL;
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return -1;
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}
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if ( ReadMMIO() != 0 ) {
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// ReadMMIO will fail if its an not a wave file
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Close();
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return -1;
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}
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mfileTime = mhmmio->Timestamp();
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if ( ResetFile() != 0 ) {
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Close();
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return -1;
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}
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// After the reset, the size of the wav file is mck.cksize so store it now
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mdwSize = mck.cksize / sizeof( short );
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mMemSize = mck.cksize;
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if ( mck.cksize != 0xffffffff ) {
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if ( pwfx ) {
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memcpy( pwfx, (waveformatex_t *)&mpwfx, sizeof(waveformatex_t));
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}
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return 0;
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}
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return -1;
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}
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//-----------------------------------------------------------------------------
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// Name: idWaveFile::OpenFromMemory()
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// Desc: copy data to idWaveFile member variable from memory
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//-----------------------------------------------------------------------------
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int idWaveFile::OpenFromMemory( short* pbData, int ulDataSize, waveformatextensible_t* pwfx ) {
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mpwfx = *pwfx;
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mulDataSize = ulDataSize;
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mpbData = pbData;
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mpbDataCur = mpbData;
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mdwSize = ulDataSize / sizeof( short );
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mMemSize = ulDataSize;
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mbIsReadingFromMemory = true;
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return 0;
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}
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//-----------------------------------------------------------------------------
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// Name: idWaveFile::ReadMMIO()
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// Desc: Support function for reading from a multimedia I/O stream.
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// mhmmio must be valid before calling. This function uses it to
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// update mckRiff, and mpwfx.
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//-----------------------------------------------------------------------------
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int idWaveFile::ReadMMIO( void ) {
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mminfo_t ckIn; // chunk info. for general use.
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pcmwaveformat_t pcmWaveFormat; // Temp PCM structure to load in.
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memset( &mpwfx, 0, sizeof( waveformatextensible_t ) );
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mhmmio->Read( &mckRiff, 12 );
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assert( !isOgg );
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mckRiff.ckid = LittleInt( mckRiff.ckid );
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mckRiff.cksize = LittleInt( mckRiff.cksize );
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mckRiff.fccType = LittleInt( mckRiff.fccType );
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mckRiff.dwDataOffset = 12;
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// Check to make sure this is a valid wave file
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if( (mckRiff.ckid != fourcc_riff) || (mckRiff.fccType != mmioFOURCC('W', 'A', 'V', 'E') ) ) {
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return -1;
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}
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// Search the input file for for the 'fmt ' chunk.
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ckIn.dwDataOffset = 12;
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do {
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if (8 != mhmmio->Read( &ckIn, 8 ) ) {
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return -1;
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}
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assert( !isOgg );
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ckIn.ckid = LittleInt( ckIn.ckid );
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ckIn.cksize = LittleInt( ckIn.cksize );
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ckIn.dwDataOffset += ckIn.cksize-8;
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} while (ckIn.ckid != mmioFOURCC('f', 'm', 't', ' '));
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// Expect the 'fmt' chunk to be at least as large as <PCMWAVEFORMAT>;
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// if there are extra parameters at the end, we'll ignore them
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if( ckIn.cksize < sizeof(pcmwaveformat_t) ) {
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return -1;
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}
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// Read the 'fmt ' chunk into <pcmWaveFormat>.
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if( mhmmio->Read( &pcmWaveFormat, sizeof(pcmWaveFormat) ) != sizeof(pcmWaveFormat) ) {
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return -1;
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}
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assert( !isOgg );
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pcmWaveFormat.wf.wFormatTag = LittleShort( pcmWaveFormat.wf.wFormatTag );
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pcmWaveFormat.wf.nChannels = LittleShort( pcmWaveFormat.wf.nChannels );
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pcmWaveFormat.wf.nSamplesPerSec = LittleInt( pcmWaveFormat.wf.nSamplesPerSec );
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pcmWaveFormat.wf.nAvgBytesPerSec = LittleInt( pcmWaveFormat.wf.nAvgBytesPerSec );
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pcmWaveFormat.wf.nBlockAlign = LittleShort( pcmWaveFormat.wf.nBlockAlign );
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pcmWaveFormat.wBitsPerSample = LittleShort( pcmWaveFormat.wBitsPerSample );
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// Copy the bytes from the pcm structure to the waveformatex_t structure
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memcpy( &mpwfx, &pcmWaveFormat, sizeof(pcmWaveFormat) );
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// Allocate the waveformatex_t, but if its not pcm format, read the next
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// word, and thats how many extra bytes to allocate.
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if( pcmWaveFormat.wf.wFormatTag == WAVE_FORMAT_TAG_PCM ) {
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mpwfx.Format.cbSize = 0;
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} else {
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return -1; // we don't handle these (32 bit wavefiles, etc)
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#if 0
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// Read in length of extra bytes.
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word cbExtraBytes = 0L;
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if( mhmmio->Read( (char*)&cbExtraBytes, sizeof(word) ) != sizeof(word) )
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return -1;
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mpwfx.Format.cbSize = cbExtraBytes;
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// Now, read those extra bytes into the structure, if cbExtraAlloc != 0.
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if( mhmmio->Read( (char*)(((byte*)&(mpwfx.Format.cbSize))+sizeof(word)), cbExtraBytes ) != cbExtraBytes ) {
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memset( &mpwfx, 0, sizeof( waveformatextensible_t ) );
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return -1;
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}
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#endif
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}
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return 0;
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}
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//-----------------------------------------------------------------------------
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// Name: idWaveFile::ResetFile()
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// Desc: Resets the internal mck pointer so reading starts from the
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// beginning of the file again
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//-----------------------------------------------------------------------------
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int idWaveFile::ResetFile( void ) {
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if( mbIsReadingFromMemory ) {
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mpbDataCur = mpbData;
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} else {
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if( mhmmio == NULL ) {
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return -1;
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}
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// Seek to the data
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if( -1 == mhmmio->Seek( mckRiff.dwDataOffset + sizeof(fourcc), FS_SEEK_SET ) ) {
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return -1;
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}
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// Search the input file for for the 'fmt ' chunk.
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mck.ckid = 0;
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do {
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byte ioin;
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if ( !mhmmio->Read( &ioin, 1 ) ) {
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return -1;
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}
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mck.ckid = (mck.ckid>>8) | (ioin<<24);
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} while (mck.ckid != mmioFOURCC('d', 'a', 't', 'a'));
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mhmmio->Read( &mck.cksize, 4 );
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assert( !isOgg );
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mck.cksize = LittleInt( mck.cksize );
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mseekBase = mhmmio->Tell();
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}
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return 0;
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}
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//-----------------------------------------------------------------------------
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// Name: idWaveFile::Read()
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// Desc: Reads section of data from a wave file into pBuffer and returns
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// how much read in pdwSizeRead, reading not more than dwSizeToRead.
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// This uses mck to determine where to start reading from. So
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// subsequent calls will be continue where the last left off unless
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// Reset() is called.
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//-----------------------------------------------------------------------------
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int idWaveFile::Read( byte* pBuffer, int dwSizeToRead, int *pdwSizeRead ) {
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if ( ogg != NULL ) {
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return ReadOGG( pBuffer, dwSizeToRead, pdwSizeRead );
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} else if ( mbIsReadingFromMemory ) {
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if( mpbDataCur == NULL ) {
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return -1;
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}
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if( (byte*)(mpbDataCur + dwSizeToRead) > (byte*)(mpbData + mulDataSize) ) {
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dwSizeToRead = mulDataSize - (int)(mpbDataCur - mpbData);
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}
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SIMDProcessor->Memcpy( pBuffer, mpbDataCur, dwSizeToRead );
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mpbDataCur += dwSizeToRead;
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if ( pdwSizeRead != NULL ) {
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*pdwSizeRead = dwSizeToRead;
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}
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return dwSizeToRead;
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} else {
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if( mhmmio == NULL ) {
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return -1;
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}
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if( pBuffer == NULL ) {
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return -1;
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}
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dwSizeToRead = mhmmio->Read( pBuffer, dwSizeToRead );
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// this is hit by ogg code, which does it's own byte swapping internally
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if ( !isOgg ) {
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LittleRevBytes( pBuffer, 2, dwSizeToRead / 2 );
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}
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if ( pdwSizeRead != NULL ) {
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*pdwSizeRead = dwSizeToRead;
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}
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return dwSizeToRead;
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}
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}
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//-----------------------------------------------------------------------------
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// Name: idWaveFile::Close()
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// Desc: Closes the wave file
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//-----------------------------------------------------------------------------
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int idWaveFile::Close( void ) {
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if ( ogg != NULL ) {
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return CloseOGG();
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}
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if( mhmmio != NULL ) {
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fileSystem->CloseFile( mhmmio );
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mhmmio = NULL;
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}
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return 0;
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}
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//-----------------------------------------------------------------------------
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// Name: idWaveFile::Seek()
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//-----------------------------------------------------------------------------
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int idWaveFile::Seek( int offset ) {
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if ( ogg != NULL ) {
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common->FatalError( "idWaveFile::Seek: cannot seek on an OGG file\n" );
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} else if( mbIsReadingFromMemory ) {
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mpbDataCur = mpbData + offset;
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} else {
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if( mhmmio == NULL ) {
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return -1;
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}
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if ((int)(offset+mseekBase) == mhmmio->Tell()) {
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return 0;
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}
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mhmmio->Seek( offset + mseekBase, FS_SEEK_SET );
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return 0;
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}
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return -1;
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}
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