engine: added audio backend print to s_info command

engine/client/s_main.c

@@ -1851,7 +1851,7 @@ S_SoundInfo_f
 */
 void S_SoundInfo_f( void )
 {
-	Con_Printf( "Audio: DirectSound\n" );
+	Con_Printf( "Audio backend: %s\n", dma.backendName );
 	Con_Printf( "%5d channel(s)\n", 2 );
 	Con_Printf( "%5d samples\n", dma.samples );
 	Con_Printf( "%5d bits/sample\n", 16 );
@@ -1927,6 +1927,7 @@ qboolean S_Init( void )
 	Cmd_AddCommand( "spk", S_SayReliable_f, "reliable play a specified sententce" );
 	Cmd_AddCommand( "speak", S_Say_f, "playing a specified sententce" );
 
+	dma.backendName = "None";
 	if( !SNDDMA_Init( ) )
 	{
 		Con_Printf( "Audio: sound system can't be initialized\n" );

engine/client/sound.h

@@ -114,10 +114,11 @@ typedef struct snd_format_s
 typedef struct
 {
 	snd_format_t	format;
-	int		samples;		// mono samples in buffer
-	int		samplepos;	// in mono samples
-	byte		*buffer;
+	int				samples;		// mono samples in buffer
+	int				samplepos;	// in mono samples
+	byte			*buffer;
 	qboolean		initialized;	// sound engine is active
+	const char		*backendName;
 } dma_t;
 
 #include "vox.h"

engine/platform/android/snd_opensles.c

@@ -209,7 +209,7 @@ qboolean SNDDMA_Init( void )
 	}
 
 	Msg( "OpenSL ES audio initialized.\n" );
-
+	dma.backendName = "OpenSL ES";
 	return true;
 }
 

engine/platform/linux/s_alsa.c

@@ -185,12 +185,12 @@ qboolean SNDDMA_Init( void )
 	}
 
 	dma.buffer = Z_Malloc( samples * 2 );  //allocate pcm frame buffer
-
 	dma.samplepos = 0;
-
 	dma.samples = samples;
 	dma.format.width = 2;
 	dma.initialized = 1;
+	dma.backendName = "ALSA";
+
 	snd_pcm_prepare( s_alsa.pcm_handle );
 	snd_pcm_writei( s_alsa.pcm_handle, dma.buffer, 2 * s_alsa.period_size );
 	snd_pcm_start( s_alsa.pcm_handle );

engine/platform/sdl/s_sdl.c

@@ -46,6 +46,7 @@ so it can unlock and free the data block after it has been played.
 static int sdl_dev;
 static SDL_AudioDeviceID in_dev = 0;
 static SDL_AudioFormat sdl_format;
+static char sdl_backend_name[32];
 
 //static qboolean	snd_firsttime = true;
 //static qboolean	primary_format_set;
@@ -139,8 +140,9 @@ qboolean SNDDMA_Init( void )
 	sdl_format = obtained.format;
 
 	Con_Printf( "Using SDL audio driver: %s @ %d Hz\n", SDL_GetCurrentAudioDriver( ), obtained.freq );
-
+	Q_snprintf( sdl_backend_name, sizeof( sdl_backend_name ), "SDL (%s)", SDL_GetCurrentAudioDriver( ));
 	dma.initialized = true;
+	dma.backendName = sdl_backend_name;
 
 	SNDDMA_Activate( true );