quake: migrate to SDL_mixer and add background music

Kind of skippy and only supports WAV. MP3 would be nice, especially if
using Rockbox's codec.

Change-Id: I0bba195603da32da1e4d1dcf2ee821fa5696824a

1 files changed, 123 insertions, 0 deletions

diff --git a/apps/plugins/sdl/progs/quake/cd_rockbox.c b/apps/plugins/sdl/progs/quake/cd_rockbox.c
new file mode 100644
index 0000000000..76a955943e
--- /dev/null
+++ b/apps/plugins/sdl/progs/quake/cd_rockbox.c
@@ -0,0 +1,123 @@
+/*
+Copyright (C) 1996-1997 Id Software, Inc.
+
+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.
+
+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.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+/* Background music for Rockbox. Uses SDL_mixer and plays from
+ * /.rockbox/quake/%02d.wav */
+
+#include "quakedef.h"
+#include "SDL_mixer.h"
+
+#define MUSIC_DIR ROCKBOX_DIR "/quake"
+
+#if 1
+static Mix_Music *mus = NULL;
+#else
+static int musfile = -1;
+static int musfile_len, musfile_pos;
+
+#define MP3_CHUNK 1024*512
+
+static char mp3buf[MP3_CHUNK];
+
+static void get_mp3(const void **start, size_t *size)
+{
+    if(musfile >= 0)
+    {
+        int len = MIN(musfile_len - musfile_pos, MP3_CHUNK);
+
+        Sys_FileRead(musfile, mp3buf, len);
+        *start = mp3buf;
+        *size = len;
+
+        musfile_pos += len;
+    }
+}
+#endif
+
+void CDAudio_Play(byte track, qboolean looping)
+{
+    char path[MAX_PATH];
+    snprintf(path, sizeof(path), "%s/%02d.wav", MUSIC_DIR, track - 1);
+
+    rb->splashf(HZ, "playing %s", path);
+
+#if 1
+    mus = Mix_LoadMUS(path);
+
+    if(!mus)
+    {
+        rb->splashf(HZ, "Failed: %s", Mix_GetError());
+        return;
+    }
+
+    Mix_PlayMusic(mus, looping ? -1 : 0);
+#else
+
+    musfile_len = Sys_FileOpenRead(path, &musfile);
+    musfile_pos = 0;
+
+    rb->mp3_play_data(NULL, 0, get_mp3);
+#endif
+}
+
+
+void CDAudio_Stop(void)
+{
+    if ( (Mix_PlayingMusic()) || (Mix_PausedMusic()) )
+        Mix_HaltMusic();
+}
+
+
+void CDAudio_Pause(void)
+{
+    Mix_PauseMusic();
+}
+
+
+void CDAudio_Resume(void)
+{
+    Mix_ResumeMusic();
+}
+
+
+void CDAudio_Update(void)
+{
+    //Mix_VolumeMusic(bgmvolume.value * SDL_MIX_MAXVOLUME);
+}
+
+
+int CDAudio_Init(void)
+{
+    rb->splashf(HZ, "CD Init");
+
+    if(Mix_OpenAudio(MIX_DEFAULT_FREQUENCY, MIX_DEFAULT_FORMAT, 2, 1024)==-1) {
+        rb->splashf(HZ, "Mix_OpenAudio: %s\n", Mix_GetError());
+        return -1;
+    }
+    return 0;
+}
+
+
+void CDAudio_Shutdown(void)
+{
+    if(mus)
+        Mix_FreeMusic(mus);
+    CDAudio_Stop();
+}