initial SID support

1 files changed, 95 insertions, 0 deletions

diff --git a/csid.cpp b/csid.cpp
new file mode 100644
index 00000000..97bb9844
--- /dev/null
+++ b/csid.cpp
@@ -0,0 +1,95 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include "sidplay/sidplay2.h"
+#include "sidplay/builders/resid.h"
+extern "C" {
+#include "codec.h"
+#include "playlist.h"
+}
+#include "csid.h"
+
+static sidplay2 *sidplay;
+static ReSIDBuilder *resid;
+static SidTune *tune;
+extern int sdl_player_freq; // hack!
+
+extern "C" int
+csid_init (const char *fname, int track, float start, float end) {
+    sidplay = new sidplay2;
+    resid = new ReSIDBuilder ("wtf");
+    resid->create (sidplay->info ().maxsids);
+    resid->filter (true);
+    resid->sampling (sdl_player_freq);
+    tune = new SidTune (fname);
+    tune->selectSong (0);
+    csid.info.channels = tune->isStereo () ? 2 : 1;
+    sid2_config_t conf;
+    conf = sidplay->config ();
+    conf.frequency = sdl_player_freq;
+    conf.precision = 16;
+    conf.playback = csid.info.channels == 2 ? sid2_stereo : sid2_mono;
+    conf.sidEmulation = resid;
+    conf.optimisation = 0;
+    sidplay->config (conf);
+    sidplay->load (tune);
+    csid.info.bitsPerSample = 16;
+    csid.info.samplesPerSecond = sdl_player_freq;
+    csid.info.duration = 120;
+    csid.info.position = 0;
+
+    return 0;
+}
+
+extern "C" void
+csid_free (void) {
+    delete sidplay;
+    sidplay = 0;
+    delete resid;
+    resid = 0;
+    delete tune;
+    tune = 0;
+}
+
+extern "C" int
+csid_read (char *bytes, int size) {
+    int rd = sidplay->play (bytes, size/csid.info.channels);
+    return rd * csid.info.channels;
+}
+
+extern "C" int
+csid_seek (float time) {
+    return 0;
+}
+
+extern "C" int
+csid_add (const char *fname) {
+    playItem_t *it = (playItem_t*)malloc (sizeof (playItem_t));
+    memset (it, 0, sizeof (playItem_t));
+    it->codec = &csid;
+    it->fname = strdup (fname);
+    it->tracknum = 0;
+    it->timestart = 0;
+    it->timeend = 0;
+    ps_append_item (it);
+    return 0;
+}
+
+static const char * exts[]=
+{
+	"sid",NULL
+};
+
+extern "C" const char **csid_getexts (void) {
+    return exts;
+}
+
+codec_t csid = {
+    csid_init,
+    csid_free,
+    csid_read,
+    csid_seek,
+    csid_add,
+    csid_getexts
+};
+