DUMB module playback WIP

1 files changed, 107 insertions, 0 deletions

diff --git a/cdumb.c b/cdumb.c
new file mode 100644
index 00000000..07fc159b
--- /dev/null
+++ b/cdumb.c
@@ -0,0 +1,107 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "dumb/dumb-0.9.3/include/dumb.h"
+#include "codec.h"
+#include "cdumb.h"
+#include "playlist.h"
+
+extern int sdl_player_freq; // hack!
+static int dumb_initialized;
+static DUH *myduh;
+static DUH_SIGRENDERER *renderer;
+//#define DUMB_RQ_ALIASING
+//#define DUMB_RQ_LINEAR
+//#define DUMB_RQ_CUBIC
+//#define DUMB_RQ_N_LEVELS
+extern int dumb_resampling_quality;
+extern int dumb_it_max_to_mix;
+
+void
+cdumb_free (void);
+
+int
+cdumb_init (const char *fname, int track, float start, float end) {
+    if (!dumb_initialized) {
+        atexit (&dumb_exit);
+    }
+    dumb_register_stdfiles ();
+    const char *ext = fname + strlen (fname) - 1;
+    while (*ext != '.' && ext > fname) {
+        ext--;
+    }
+    ext++;
+    if (!strcasecmp (ext, "mod")) {
+        myduh = dumb_load_mod_quick (fname);
+    }
+    else if (!strcasecmp (ext, "s3m")) {
+        myduh = dumb_load_s3m_quick (fname);
+    }
+    else if (!strcasecmp (ext, "it")) {
+        myduh = dumb_load_it_quick (fname);
+    }
+    else if (!strcasecmp (ext, "xm")) {
+        myduh = dumb_load_xm_quick (fname);
+    }
+    else {
+        return -1;
+    }
+    renderer = duh_start_sigrenderer (myduh, 0, 2, 0);
+    if (!renderer) {
+        cdumb_free ();
+        return -1;
+    }
+
+    dumb_it_do_initial_runthrough (myduh);
+
+    cdumb.info.bitsPerSample = 16;
+    cdumb.info.channels = 2;
+    cdumb.info.samplesPerSecond = sdl_player_freq;
+    cdumb.info.position = 0;
+    cdumb.info.duration = duh_get_length (myduh)/65536.0f;
+    printf ("duration: %f\n", cdumb.info.duration);
+    return 0;
+}
+
+void
+cdumb_free (void) {
+    if (renderer) {
+        duh_end_sigrenderer (renderer);
+        renderer = NULL;
+    }
+    if (myduh) {
+        unload_duh (myduh);
+        myduh = NULL;
+    }
+}
+
+int
+cdumb_read (char *bytes, int size) {
+    int length = size / 4;
+    long ret;
+    ret = duh_render (renderer, 16, 0, 1, 65536.f / cdumb.info.samplesPerSecond, length, bytes);
+    cdumb.info.position += ret / (float)cdumb.info.samplesPerSecond;
+    return ret*4;
+}
+
+int
+cdumb_seek (float time) {
+    int pos = time * cdumb.info.samplesPerSecond;
+    duh_sigrenderer_generate_samples (renderer, 0, 65536.0f / cdumb.info.samplesPerSecond, pos, NULL);
+    cdumb.info.position = time;
+    return 0;
+}
+
+int
+cdumb_add (const char *fname) {
+    return 0;
+}
+
+codec_t cdumb = {
+    .init = cdumb_init,
+    .free = cdumb_free,
+    .read = cdumb_read,
+    .seek = cdumb_seek,
+    .add = cdumb_add
+};
+