initial

1 files changed, 24 insertions, 0 deletions

diff --git a/libopna/opna.c b/libopna/opna.c
new file mode 100644
index 0000000..4e198a0
--- /dev/null
+++ b/libopna/opna.c
@@ -0,0 +1,24 @@
+#include "opna.h"
+
+void opna_reset(struct opna *opna) {
+  opna_fm_reset(&opna->fm);
+  opna_ssg_reset(&opna->ssg);
+  opna_ssg_resampler_reset(&opna->resampler);
+  opna_drum_reset(&opna->drum);
+  opna_adpcm_reset(&opna->adpcm);
+}
+
+void opna_writereg(struct opna *opna, unsigned reg, unsigned val) {
+  val &= 0xff;
+  opna_fm_writereg(&opna->fm, reg, val);
+  opna_ssg_writereg(&opna->ssg, reg, val);
+  opna_drum_writereg(&opna->drum, reg, val);
+  opna_adpcm_writereg(&opna->adpcm, reg, val);
+}
+
+void opna_mix(struct opna *opna, int16_t *buf, unsigned samples) {
+  opna_fm_mix(&opna->fm, buf, samples);
+  opna_ssg_mix_55466(&opna->ssg, &opna->resampler, buf, samples);
+  opna_drum_mix(&opna->drum, buf, samples);
+  opna_adpcm_mix(&opna->adpcm, buf, samples);
+}