sound: move related function declarations to platform header. Remove unused.

engine/platform/platform.h

@@ -90,6 +90,22 @@ int       R_MaxVideoModes();
 vidmode_t*R_GetVideoMode( int num );
 void*     GL_GetProcAddress( const char *name ); // RenderAPI requirement
 
+/*
+==============================================================================
 
+			AUDIO INPUT/OUTPUT
+
+==============================================================================
+*/
+// initializes cycling through a DMA buffer and returns information on it
+qboolean SNDDMA_Init( void *hInst );
+int  SNDDMA_GetSoundtime( void );
+void SNDDMA_Shutdown( void );
+void SNDDMA_BeginPainting( void );
+void SNDDMA_Submit( void );
+void SNDDMA_Activate( qboolean active ); // pause audio
+// void SNDDMA_PrintDeviceName( void ); // unused
+// void SNDDMA_LockSound( void ); // unused
+// void SNDDMA_UnlockSound( void ); // unused
 
 #endif // PLATFORM_H

engine/platform/sdl/events.c

@@ -408,7 +408,7 @@ static void SDLash_EventFilter( SDL_Event *event )
 			IN_ActivateMouse(true);
 			if( snd_mute_losefocus->value )
 			{
-				S_Activate( true );
+				SNDDMA_Activate( true );
 			}
 			host.force_draw_version = true;
 			host.force_draw_version_time = host.realtime + FORCE_DRAW_VERSION_TIME;
@@ -427,7 +427,7 @@ static void SDLash_EventFilter( SDL_Event *event )
 			IN_DeactivateMouse();
 			if( snd_mute_losefocus->value )
 			{
-				S_Activate( false );
+				SNDDMA_Activate( false );
 			}
 			host.force_draw_version = true;
 			host.force_draw_version_time = host.realtime + 2;

engine/platform/sdl/s_sdl.c

@@ -14,6 +14,7 @@ GNU General Public License for more details.
 */
 
 #include "common.h"
+#include "platform/platform.h"
 #if XASH_SOUND == SOUND_SDL
 
 #include "sound.h"
@@ -238,23 +239,13 @@ void SNDDMA_Shutdown( void )
 
 /*
 ===========
-S_PrintDeviceName
-===========
-*/
-void S_PrintDeviceName( void )
-{
-	Msg( "Audio: SDL (driver: %s)\n", SDL_GetCurrentAudioDriver( ) );
-}
-
-/*
-===========
-S_Activate
+SNDDMA_Activate
 Called when the main window gains or loses focus.
 The window have been destroyed and recreated
 between a deactivate and an activate.
 ===========
 */
-void S_Activate( qboolean active )
+void SNDDMA_Activate( qboolean active )
 {
 	SDL_PauseAudioDevice( sdl_dev, !active );
 }