From 55d19e6bdfdfe67ebf0246a697d7358c920af54c Mon Sep 17 00:00:00 2001
From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Date: Wed, 1 Apr 2020 18:13:28 +0900
Subject: [PATCH] seq: tstamp: add accessor methods

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
 src/seq/alsaseq.map |  4 ++++
 src/seq/tstamp.c    | 55 +++++++++++++++++++++++++++++++++++++++++++++
 src/seq/tstamp.h    |  6 +++++
 3 files changed, 65 insertions(+)

diff --git a/src/seq/alsaseq.map b/src/seq/alsaseq.map
index b10a425..80fd9d8 100644
--- a/src/seq/alsaseq.map
+++ b/src/seq/alsaseq.map
@@ -54,6 +54,10 @@ ALSA_GOBJECT_0_0_0 {
     "alsaseq_client_pool_get_type";
 
     "alsaseq_tstamp_get_type";
+    "alsaseq_tstamp_get_tick_time";
+    "alsaseq_tstamp_set_tick_time";
+    "alsaseq_tstamp_get_real_time";
+    "alsaseq_tstamp_set_real_time";
   local:
     *;
 };
diff --git a/src/seq/tstamp.c b/src/seq/tstamp.c
index bf0d1f6..5c9077c 100644
--- a/src/seq/tstamp.c
+++ b/src/seq/tstamp.c
@@ -7,3 +7,58 @@ ALSASeqTstamp *seq_tstamp_copy(const ALSASeqTstamp *self)
 }
 
 G_DEFINE_BOXED_TYPE(ALSASeqTstamp, alsaseq_tstamp, seq_tstamp_copy, g_free)
+
+/**
+ * alsaseq_tstamp_get_tick_time:
+ * @self: A #ALSASeqTstamp.
+ * @tick_time: (out): The number of MIDI ticks.
+ *
+ * Get time as MIDI ticks.
+ */
+void alsaseq_tstamp_get_tick_time(ALSASeqTstamp *self, guint32 *tick_time)
+{
+    *tick_time = self->tick;
+}
+
+/**
+ * alsaseq_tstamp_set_tick_time:
+ * @self: A #ALSASeqTstamp.
+ * @tick_time: The number of MIDI ticks.
+ *
+ * Set time as MIDI ticks.
+ */
+void alsaseq_tstamp_set_tick_time(ALSASeqTstamp *self, const guint32 tick_time)
+{
+    self->tick = tick_time;
+}
+
+/**
+ * alsaseq_tstamp_get_real_time:
+ * @self: A #ALSASeqTstamp.
+ *
+ * Refer to the time as wall-clock time.
+ *
+ * Returns: (array fixed-size=2)(transfer none): The array with two elements
+ *          for sec part and nsec part of real time.
+ */
+const guint32 *alsaseq_tstamp_get_real_time(ALSASeqTstamp *self)
+{
+    // MEMO: I wish 32-bit storage size is aligned to 32 bit offset in all of
+    // supported ABIs.
+    return (guint32 *)&self->time;
+}
+
+
+/**
+ * alsaseq_tstamp_set_real_time:
+ * @self: A #ALSASeqTstamp.
+ * @tstamp: (array fixed-size=2)(transfer none): The array with two elements for
+ *          sec part and nsec part of real time.
+ *
+ * Copy the time as wall-clock time.
+ */
+void alsaseq_tstamp_set_real_time(ALSASeqTstamp *self, const guint32 tstamp[2])
+{
+    self->time.tv_sec = tstamp[0];
+    self->time.tv_nsec = tstamp[1];
+}
diff --git a/src/seq/tstamp.h b/src/seq/tstamp.h
index 191ffd7..30e10e4 100644
--- a/src/seq/tstamp.h
+++ b/src/seq/tstamp.h
@@ -15,6 +15,12 @@ typedef union snd_seq_timestamp ALSASeqTstamp;
 
 GType alsaseq_tstamp_get_type() G_GNUC_CONST;
 
+void alsaseq_tstamp_get_tick_time(ALSASeqTstamp *self, guint32 *tick_time);
+void alsaseq_tstamp_set_tick_time(ALSASeqTstamp *self, const guint32 tick_time);
+
+const guint32 *alsaseq_tstamp_get_real_time(ALSASeqTstamp *self);
+void alsaseq_tstamp_set_real_time(ALSASeqTstamp *self, const guint32 tstamp[2]);
+
 G_END_DECLS
 
 #endif
-- 
2.47.3