Added lmarbles game

project/jni/application/lmarbles-1.0.8/src/audio.c

@@ -0,0 +1,151 @@
+/***************************************************************************
+                          sound.c  -  description
+                             -------------------
+    begin                : Sun Jul 29 2001
+    copyright            : (C) 2001 by Michael Speck
+    email                : kulkanie@gmx.net
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   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 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#ifdef SOUND
+
+#include <SDL_mixer.h>
+#include "audio.h"
+
+/*
+====================================================================
+If audio device was properly initiated this flag is set.
+If this flag is not set; no action will be taken for audio.
+====================================================================
+*/
+int audio_ok = 0;
+/*
+====================================================================
+If this flag is not set no sound is played.
+====================================================================
+*/
+int sound_enabled = 1;
+
+/*
+====================================================================
+Initiate/close audio
+====================================================================
+*/
+int audio_open()
+{
+    if ( Mix_OpenAudio( MIX_DEFAULT_FREQUENCY, MIX_DEFAULT_FORMAT, MIX_DEFAULT_CHANNELS, 256 ) < 0 ) {
+        fprintf( stderr, "audio_open: can't open audio device: %s\n", SDL_GetError() );
+        audio_ok = 0;
+        return 0;
+    }
+    audio_ok = 1;
+    return 1;
+}
+void audio_close()
+{
+    if ( !audio_ok ) return;
+    Mix_CloseAudio();
+}
+
+/*
+====================================================================
+Sound chunk
+====================================================================
+*/
+Sound_Chunk* sound_chunk_load( char *file_name )
+{
+    char path[512];
+    Mix_Chunk *chunk = 0;
+
+    if ( !audio_ok ) {
+        fprintf( stderr,
+                 "sound_chunk_load: cannot load WAV '%s' as audio device isn't initated properly\n",
+                 file_name );
+        return 0;
+    }
+
+    /* use SRCDIR/sounds as source directory */
+    sprintf( path, "%s/sounds/%s", SRC_DIR, file_name );
+
+    chunk = Mix_LoadWAV( path );
+    if ( chunk == 0 )
+    {	    
+        fprintf( stderr, "chunk_load: couldn't load WAV '%s': %s\n", path, SDL_GetError() );
+    }	
+    return (Sound_Chunk*)chunk;
+}
+void sound_chunk_free( Sound_Chunk **chunk )
+{
+    if ( !audio_ok ) return;
+    Mix_FreeChunk( (Mix_Chunk*)(*chunk) );
+    *chunk = 0;
+}
+
+/*
+====================================================================
+Sound stuff
+====================================================================
+*/
+
+/*
+====================================================================
+Enable/disable sound
+====================================================================
+*/
+void sound_enable( int enable )
+{
+    if ( !audio_ok ) return;
+    sound_enabled = enable;
+    if ( !enable )
+        Mix_Pause( -1 ); /* stop all sound channels */
+}
+/*
+====================================================================
+Set general volume of sounds. 0 - 127
+====================================================================
+*/
+void sound_volume( int level )
+{
+    if ( !audio_ok ) return;
+    if ( level < 0 ) level = 0;
+    if ( level > 127 ) level = 127;
+    Mix_Volume( -1, level ); /* all sound channels */
+}
+/*
+====================================================================
+Play a chunk.
+====================================================================
+*/
+void sound_play( Sound_Chunk *chunk )
+{
+    if ( !audio_ok ) return;
+    if ( !sound_enabled ) return;
+    /* use first free sound channel and play sound one time */
+    Mix_PlayChannel( -1, (Mix_Chunk*)chunk, 0 );
+}
+
+/*
+====================================================================
+Music stuff
+====================================================================
+*/
+
+/*
+====================================================================
+Set general volume of sounds. 0 - 127
+====================================================================
+*/
+void music_volume( int level )
+{
+    /* not implemented */
+}
+
+#endif