Added audio capture support to SDL backend.

This lets you speak through VoIP when not using OpenAL. Previously you could
listen but not speak.

code/client/snd_dma.c

@@ -119,32 +119,31 @@ void S_Base_SoundInfo(void) {
 static
 void S_Base_StartCapture( void )
 {
-	// !!! FIXME: write me.
+	SNDDMA_StartCapture();
 }
 
 static
 int S_Base_AvailableCaptureSamples( void )
 {
-	// !!! FIXME: write me.
-	return 0;
+	return SNDDMA_AvailableCaptureSamples();
 }
 
 static
 void S_Base_Capture( int samples, byte *data )
 {
-	// !!! FIXME: write me.
+	SNDDMA_Capture(samples, data);
 }
 
 static
 void S_Base_StopCapture( void )
 {
-	// !!! FIXME: write me.
+	SNDDMA_StopCapture();
 }
 
 static
 void S_Base_MasterGain( float val )
 {
-	// !!! FIXME: write me.
+	SNDDMA_MasterGain(val);
 }
 #endif
 

code/client/snd_local.h

@@ -176,6 +176,15 @@ void	SNDDMA_BeginPainting (void);
 
 void	SNDDMA_Submit(void);
 
+#ifdef USE_VOIP
+void SNDDMA_StartCapture(void);
+int SNDDMA_AvailableCaptureSamples(void);
+void SNDDMA_Capture(int samples, byte *data);
+void SNDDMA_StopCapture(void);
+void SNDDMA_MasterGain(float val);
+#endif
+
+
 //====================================================================
 
 #define	MAX_CHANNELS			96