initial

soundsystem/snd_io.cpp

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+//===== Copyright <20> 1996-2005, Valve Corporation, All rights reserved. ======//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//===========================================================================//
+
+#include "soundsystem.h"
+#include "tier2/riff.h"
+#include "filesystem.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:
+	FileHandle_t open( const char *pFileName );
+	int read( void *pOutput, int size, FileHandle_t file );
+	void seek( FileHandle_t file, int pos );
+	unsigned int tell( FileHandle_t file );
+	unsigned int size( FileHandle_t file );
+	void close( FileHandle_t file );
+};
+
+
+// prepend sound/ to the filename -- all sounds are loaded from the sound/ directory
+FileHandle_t COM_IOReadBinary::open( const char *pFileName )
+{
+	char namebuffer[512];
+	FileHandle_t hFile;
+
+	Q_strncpy(namebuffer, "sound", sizeof( namebuffer ) );
+
+	//HACK HACK HACK  the server is sending back sound names with slashes in front... 
+	if (pFileName[0]!='/')
+	{
+		Q_strncat(namebuffer,"/", sizeof( namebuffer ), COPY_ALL_CHARACTERS );
+	}
+
+	Q_strncat( namebuffer, pFileName, sizeof( namebuffer ), COPY_ALL_CHARACTERS );
+
+	hFile = g_pFullFileSystem->Open( namebuffer, "rb", "GAME" );
+
+	return hFile;
+}
+
+int COM_IOReadBinary::read( void *pOutput, int size, FileHandle_t file )
+{
+	if ( !file )
+		return 0;
+
+	return g_pFullFileSystem->Read( pOutput, size, file );
+}
+
+void COM_IOReadBinary::seek( FileHandle_t file, int pos )
+{
+	if ( !file )
+		return;
+
+	g_pFullFileSystem->Seek( file, pos, FILESYSTEM_SEEK_HEAD );
+}
+
+unsigned int COM_IOReadBinary::tell( FileHandle_t file )
+{
+	if ( !file )
+		return 0;
+	return g_pFullFileSystem->Tell( file );
+}
+
+unsigned int COM_IOReadBinary::size( FileHandle_t file )
+{
+	if (!file)
+		return 0;
+	return g_pFullFileSystem->Size( file );
+}
+
+void COM_IOReadBinary::close( FileHandle_t file )
+{
+	if (!file)
+		return;
+
+	g_pFullFileSystem->Close( file );
+}
+
+static COM_IOReadBinary io;
+IFileReadBinary *g_pSndIO = &io;
+