NS/releases/valve/source/cl_dll/soundsystem.cpp
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git-svn-id: https://unknownworlds.svn.cloudforge.com/ns1@168 67975925-1194-0748-b3d5-c16f83f1a3a1
2005-06-08 18:52:38 +00:00

168 lines
5.1 KiB
C++

//======== (C) Copyright 1999, 2000 Valve, L.L.C. All rights reserved. ========
//
// The copyright to the contents herein is the property of Valve, L.L.C.
// The contents may be used and/or copied only with the written permission of
// Valve, L.L.C., or in accordance with the terms and conditions stipulated in
// the agreement/contract under which the contents have been supplied.
//
// Purpose:
//
// $Workfile: $
// $Date: 2001/09/13 22:28:00 $
//
//-----------------------------------------------------------------------------
// $Log: soundsystem.cpp,v $
// Revision 1.2 2001/09/13 22:28:00 Charlie
// - Updated NS with new Half-life 1108 patch in preparation for voice support and spectator mode
//
// Revision 1.1.2.1 2001/09/13 14:42:29 Charlie
// - HL1108
//
//
// $NoKeywords: $
//=============================================================================
#include <windows.h>
#include <dsound.h>
#include <mmsystem.h>
#include "r_studioint.h"
extern engine_studio_api_t IEngineStudio;
#define RENDERTYPE_UNDEFINED 0
#define RENDERTYPE_SOFTWARE 1
#define RENDERTYPE_HARDWARE 2
#define ENGINE_LAUNCHER_API_VERSION 1
LPDIRECTSOUND lpDS = NULL;
LPDIRECTSOUNDBUFFER lpDSBuf = NULL;
LPHWAVEOUT lpHW = NULL;
static HMODULE hEngine = 0;
typedef struct engine_api_s
{
int version;
int rendertype;
int size;
// Functions
void ( *unused1 ) ( void );
void ( *unused2 ) ( void );
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void ( *unused4 ) ( void );
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void ( *unused31 ) ( void );
void ( *unused32 ) ( void );
void ( *unused33 ) ( void );
void ( *unused34 ) ( void );
void ( *S_GetDSPointer ) ( struct IDirectSound **lpDS, struct IDirectSoundBuffer **lpDSBuf );
void *( *S_GetWAVPointer ) ( void );
void ( *unused35 ) ( void );
void ( *unused36 ) ( void );
void ( *unused37 ) ( void );
void ( *unused38 ) ( void );
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void ( *unused51 ) ( void );
void ( *unused52 ) ( void );
void ( *unused53 ) ( void );
void ( *unused54 ) ( void );
void ( *unused55 ) ( void );
} engine_api_t;
static engine_api_t engineapi;
typedef int (*engine_api_func)( int version, int size, struct engine_api_s *api );
//-----------------------------------------------------------------------------
// Purpose: Get launcher/engine interface from engine module
// Input : hMod -
// Output : int
//-----------------------------------------------------------------------------
int Eng_LoadFunctions( HMODULE hMod )
{
engine_api_func pfnEngineAPI;
pfnEngineAPI = ( engine_api_func )GetProcAddress( hMod, "Sys_EngineAPI" );
if ( !pfnEngineAPI )
return 0;
if ( !(*pfnEngineAPI)( ENGINE_LAUNCHER_API_VERSION, sizeof( engine_api_t ), &engineapi ) )
return 0;
// All is okay
return 1;
}
//-----------------------------------------------------------------------------
// Purpose: Load proper engine .dll and get pointer to either DSound and primary buffer or HWAVEOUT ( NT 4.0, e.g. )
//-----------------------------------------------------------------------------
void LoadSoundAPIs( void )
{
hEngine = ::LoadLibrary( IEngineStudio.IsHardware() ? "hw.dll" : "sw.dll" );
if ( hEngine )
{
if ( Eng_LoadFunctions( hEngine ) )
{
if ( engineapi.S_GetDSPointer && engineapi.S_GetWAVPointer )
{
engineapi.S_GetDSPointer(&lpDS, &lpDSBuf);
lpHW = (HWAVEOUT FAR *)engineapi.S_GetWAVPointer();
}
}
}
}
//-----------------------------------------------------------------------------
// Purpose: Close engine library, release sound pointers
//-----------------------------------------------------------------------------
void ShutdownSoundAPIs( void )
{
if( hEngine )
{
FreeLibrary( hEngine );
hEngine = 0;
}
lpDS = 0;
lpDSBuf = 0;
lpHW = 0;
}