source-engine/engine/snd_io.cpp
2022-06-05 01:12:32 +03:00

95 lines
2.2 KiB
C++

//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//
//===========================================================================//
#include "tier2/riff.h"
#include "snd_io.h"
#include "filesystem.h"
#include "filesystem_engine.h"
#include "tier1/strtools.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
//-----------------------------------------------------------------------------
// Purpose: Implements Audio IO on the engine's COMMON filesystem
//-----------------------------------------------------------------------------
class COM_IOReadBinary : public IFileReadBinary
{
public:
intp open( const char *pFileName );
int read( void *pOutput, int size, intp file );
void seek( intp file, int pos );
unsigned int tell( intp file );
unsigned int size( intp file );
void close( intp file );
};
// prepend sound/ to the filename -- all sounds are loaded from the sound/ directory
intp COM_IOReadBinary::open( const char *pFileName )
{
char namebuffer[512];
FileHandle_t hFile;
Q_strncpy( namebuffer, "sound", sizeof( namebuffer ) );
// the server is sending back sound names with slashes in front...
if ( pFileName[0] != '/' && pFileName[0] != '\\' )
{
Q_strncat( namebuffer, "/", sizeof( namebuffer ), COPY_ALL_CHARACTERS );
}
Q_strncat( namebuffer, pFileName, sizeof( namebuffer ), COPY_ALL_CHARACTERS );
hFile = g_pFileSystem->Open( namebuffer, "rb", "GAME" );
return (intp)hFile;
}
int COM_IOReadBinary::read( void *pOutput, int size, intp file )
{
if ( !file )
return 0;
return g_pFileSystem->Read( pOutput, size, (FileHandle_t)file );
}
void COM_IOReadBinary::seek( intp file, int pos )
{
if ( !file )
return;
g_pFileSystem->Seek( (FileHandle_t)file, pos, FILESYSTEM_SEEK_HEAD );
}
unsigned int COM_IOReadBinary::tell( intp file )
{
if ( !file )
return 0;
return g_pFileSystem->Tell( (FileHandle_t)file );
}
unsigned int COM_IOReadBinary::size( intp file )
{
if (!file)
return 0;
return g_pFileSystem->Size( (FileHandle_t)file );
}
void COM_IOReadBinary::close( intp file )
{
if (!file)
return;
g_pFileSystem->Close( (FileHandle_t)file );
}
static COM_IOReadBinary io;
IFileReadBinary *g_pSndIO = &io;