added wave output

1 files changed, 53 insertions, 0 deletions

diff --git a/common/fmplayer_drumrom_unix.c b/common/fmplayer_drumrom_unix.c
new file mode 100644
index 0000000..791b264
--- /dev/null
+++ b/common/fmplayer_drumrom_unix.c
@@ -0,0 +1,53 @@
+#include "fmplayer_common.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "libopna/opnadrum.h"
+
+static struct {
+  uint8_t drum_rom[OPNA_ROM_SIZE];
+  bool loaded;
+} g;
+
+#define DATADIR "/.local/share/fmplayer/"
+
+void loadfile(void) {
+  const char *path = "ym2608_adpcm_rom.bin";
+  const char *home = getenv("HOME");
+  char *dpath = 0;
+  if (home) {
+    const char *datadir = DATADIR;
+    dpath = malloc(strlen(home)+strlen(datadir)+strlen(path) + 1);
+    if (dpath) {
+      strcpy(dpath, home);
+      strcat(dpath, datadir);
+      strcat(dpath, path);
+      path = dpath;
+    }
+  }
+  FILE *rhythm = fopen(path, "r");
+  free(dpath);
+  if (!rhythm) goto err;
+  if (fseek(rhythm, 0, SEEK_END) != 0) goto err_file;
+  long size = ftell(rhythm);
+  if (size != OPNA_ROM_SIZE) goto err_file;
+  if (fseek(rhythm, 0, SEEK_SET) != 0) goto err_file;
+  if (fread(g.drum_rom, 1, OPNA_ROM_SIZE, rhythm) != OPNA_ROM_SIZE) goto err_file;
+  fclose(rhythm);
+  g.loaded = true;
+  return;
+err_file:
+  fclose(rhythm);
+err:
+  return;
+}
+
+bool fmplayer_drum_rom_load(struct opna_drum *drum) {
+  if (!g.loaded) {
+    loadfile();
+  }
+  if (g.loaded) {
+    opna_drum_set_rom(drum, g.drum_rom);
+  }
+  return g.loaded;
+}