From 91726809f9e97d8d4fb7b6c0642234ff96535bdd Mon Sep 17 00:00:00 2001
From: sanine <sanine.not@pm.me>
Date: Sun, 28 Aug 2022 12:41:53 -0500
Subject: add channel_init() and channel_reset()

---
 CMakeLists.txt           |  1 +
 src/channel.c            | 24 ++++++++++++++++++--
 src/channel.h            | 18 +++++++++++++++
 src/channel.test.c       | 58 ++++++++++++++++++++++++++++++++++++++++++++++++
 src/test/mossrose-test.c |  2 ++
 5 files changed, 101 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c631e11..76ef10d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -32,6 +32,7 @@ endif()
 
 if (MOSSROSE_BUILD_TESTS)
 	add_executable(test)
+	target_link_libraries(test plibsys)
 endif()
 
 
diff --git a/src/channel.c b/src/channel.c
index fd6741b..e6e6c3f 100644
--- a/src/channel.c
+++ b/src/channel.c
@@ -4,5 +4,25 @@
 #include "channel.h"
 
 
-struct channel_t {
-};
+void channel_init(struct channel_t *chan)
+{
+	chan->active = false;
+	chan->paused = false;
+	chan->volume = 255;
+	chan->pan = 0;
+
+	chan->sound_mutex = p_mutex_new();
+	chan->sound.left = NULL;
+	chan->sound.right = NULL;
+	chan->pos = 0;
+}
+
+
+void channel_reset(struct channel_t *chan)
+{
+	p_atomic_int_set(&(chan->paused), false);
+	p_atomic_int_set(&(chan->volume), 255);
+	p_atomic_int_set(&(chan->pan), 0);
+	chan->pos = 0;
+	p_atomic_int_set(&(chan->active), false);
+}
diff --git a/src/channel.h b/src/channel.h
index 6266a10..4d0800b 100644
--- a/src/channel.h
+++ b/src/channel.h
@@ -2,7 +2,25 @@
 #define MOSSROSE_CHANNEL_H
 
 #include <stddef.h>
+#include <stdbool.h>
 #include <plibsys.h>
+#include <mossrose.h>
+
+
+struct channel_t {
+	volatile pint active; /* boolean */
+	volatile pint paused; /* boolean */
+	volatile pint volume; /* 0-255 */
+	volatile pint pan;    /* -128-127 */
+
+	PMutex *sound_mutex;
+	struct mossrose_sound_t sound;
+	size_t pos;
+};
+
+
+void channel_init(struct channel_t *chan);
+void channel_reset(struct channel_t *chan);
 
 
 #endif
diff --git a/src/channel.test.c b/src/channel.test.c
index 96b7364..e7f7e06 100644
--- a/src/channel.test.c
+++ b/src/channel.test.c
@@ -1,6 +1,64 @@
 #include "test/mossrose-test.h"
+#include <plibsys.h>
+
+PMutex * mock_p_mutex_new_();
+
+#define p_mutex_new mock_p_mutex_new_
+#include "channel.c"
+#undef p_mutex_new
+
+
+lily_mock_t *mock_p_mutex_new = NULL;
+PMutex * mock_p_mutex_new_()
+{
+	mock_p_mutex_new->n_calls += 1;
+	return p_mutex_new();
+}
+
+
+void test_channel_init()
+{
+	lily_mock_use(&mock_p_mutex_new);
+
+	struct channel_t chan;
+	channel_init(&chan);
+
+	lily_assert_int_equal(mock_p_mutex_new->n_calls, 1);
+
+	lily_assert_int_equal(chan.active, false);
+	lily_assert_int_equal(chan.paused, false);
+	lily_assert_int_equal(chan.volume, 255);
+	lily_assert_int_equal(chan.pan, 0);
+
+	lily_assert_null(chan.sound.left);
+	lily_assert_null(chan.sound.right);
+	lily_assert_int_equal(chan.pos, 0);
+}
+
+
+void test_channel_reset()
+{
+	struct channel_t chan;
+	chan.pos = 255;
+	chan.active = true;
+	chan.paused = true;
+	chan.volume = 5;
+	chan.pan = 30;
+
+	channel_reset(&chan);
+
+	lily_assert_int_equal(chan.pos, 0);
+	lily_assert_int_equal(chan.active, false);
+	lily_assert_int_equal(chan.paused, false);
+	lily_assert_int_equal(chan.volume, 255);
+	lily_assert_int_equal(chan.pan, 0);
+}
 
 
 void suite_channel()
 {
+	lily_run_test(test_channel_init);
+	lily_run_test(test_channel_reset);
+
+	lily_mock_destroy(mock_p_mutex_new);
 }
diff --git a/src/test/mossrose-test.c b/src/test/mossrose-test.c
index 88ce5ff..e71fc2a 100644
--- a/src/test/mossrose-test.c
+++ b/src/test/mossrose-test.c
@@ -1,8 +1,10 @@
+#include <plibsys.h>
 #include "mossrose-test.h"
 
 
 int main()
 {
+	p_libsys_init();
 	RUN_TESTS()
 	return 0;
 }
-- 
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