platform: new fbdev bakend, move in_evdev to bakends

engine/platform/stub/s_stub.c

@@ -0,0 +1,149 @@
+/*
+s_backend.c - sound hardware output
+Copyright (C) 2009 Uncle Mike
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+*/
+
+
+#ifndef XASH_DEDICATED
+#include "common.h"
+#if XASH_SOUND == SOUND_NULL
+
+#include "sound.h"
+
+#define SAMPLE_16BIT_SHIFT		1
+#define SECONDARY_BUFFER_SIZE		0x10000
+
+/*
+=======================================================================
+Global variables. Must be visible to window-procedure function
+so it can unlock and free the data block after it has been played.
+=======================================================================
+*/
+
+dma_t			dma;
+
+void S_Activate( qboolean active )
+{
+}
+
+
+/*
+==================
+SNDDMA_Init
+
+Try to find a sound device to mix for.
+Returns false if nothing is found.
+==================
+*/
+qboolean SNDDMA_Init( void )
+{
+	Msg( "Audio is not enabled\n" );
+	return false;
+}
+
+/*
+==============
+SNDDMA_GetDMAPos
+
+return the current sample position (in mono samples read)
+inside the recirculating dma buffer, so the mixing code will know
+how many sample are required to fill it up.
+===============
+*/
+int SNDDMA_GetDMAPos( void )
+{
+	return dma.samplepos;
+}
+
+/*
+==============
+SNDDMA_GetSoundtime
+
+update global soundtime
+===============
+*/
+int SNDDMA_GetSoundtime( void )
+{
+	static int	buffers, oldsamplepos;
+	int		samplepos, fullsamples;
+
+	fullsamples = dma.samples / 2;
+
+	// it is possible to miscount buffers
+	// if it has wrapped twice between
+	// calls to S_Update.  Oh well.
+	samplepos = SNDDMA_GetDMAPos();
+
+	if( samplepos < oldsamplepos )
+	{
+		buffers++; // buffer wrapped
+
+		if( paintedtime > 0x40000000 )
+		{
+			// time to chop things off to avoid 32 bit limits
+			buffers = 0;
+			paintedtime = fullsamples;
+			S_StopAllSounds( true );
+		}
+	}
+
+	oldsamplepos = samplepos;
+
+	return (buffers * fullsamples + samplepos / 2);
+}
+
+/*
+==============
+SNDDMA_BeginPainting
+
+Makes sure dma.buffer is valid
+===============
+*/
+void SNDDMA_BeginPainting( void )
+{
+
+}
+
+/*
+==============
+SNDDMA_Submit
+
+Send sound to device if buffer isn't really the dma buffer
+Also unlocks the dsound buffer
+===============
+*/
+void SNDDMA_Submit( void )
+{
+
+}
+
+/*
+==============
+SNDDMA_Shutdown
+
+Reset the sound device for exiting
+===============
+*/
+void SNDDMA_Shutdown( void )
+{
+	Con_Printf("Shutting down audio.\n");
+	dma.initialized = false;
+
+	if (dma.buffer) {
+		 Z_Free(dma.buffer);
+		 dma.buffer = NULL;
+	}
+}
+
+#endif
+#endif