From 8abd7a81c988b26c19406c1ea669e050d56d2db5 Mon Sep 17 00:00:00 2001
From: sanine <sanine.not@pm.me>
Date: Tue, 13 Sep 2022 12:29:37 -0500
Subject: add initial audio bindings

---
 src/audio/CMakeLists.txt |  5 ++++
 src/audio/audio.c        | 74 ++++++++++++++++++++++++++++++++++++++++++++++++
 src/audio/audio.h        |  8 ++++++
 3 files changed, 87 insertions(+)
 create mode 100644 src/audio/CMakeLists.txt
 create mode 100644 src/audio/audio.c
 create mode 100644 src/audio/audio.h

(limited to 'src/audio')

diff --git a/src/audio/CMakeLists.txt b/src/audio/CMakeLists.txt
new file mode 100644
index 0000000..41644fb
--- /dev/null
+++ b/src/audio/CMakeLists.txt
@@ -0,0 +1,5 @@
+project(honey_engine)
+
+target_sources(honey PUBLIC
+	${CMAKE_CURRENT_LIST_DIR}/audio.c
+)
diff --git a/src/audio/audio.c b/src/audio/audio.c
new file mode 100644
index 0000000..45d11c2
--- /dev/null
+++ b/src/audio/audio.c
@@ -0,0 +1,74 @@
+#include <lua.h>
+#include <honeysuckle.h>
+
+#define STB_VORBIS_HEADER_ONLY
+#include <stb_vorbis.c>
+#define MINIAUDIO_IMPLEMENTATION
+#include <miniaudio.h>
+#undef STB_VORBIS_HEADER_ONLY
+#include <stb_vorbis.c>
+
+/* stb_vorbis defines this for some reason? */
+#undef L
+
+#include "audio.h"
+
+
+int audio_engine_init(lua_State *L);
+int audio_engine_uninit(lua_State *L);
+int audio_engine_play_sound(lua_State *L);
+
+
+void setup_audio(lua_State *L, int honey_tbl)
+{
+	hs_create_table(L,
+		hs_str_cfunc("engine_init", audio_engine_init),
+		hs_str_cfunc("engine_uninit", audio_engine_uninit),
+		hs_str_cfunc("engine_play_sound", audio_engine_play_sound),
+
+		/* ma_result values */
+		hs_str_int("MA_SUCCESS", MA_SUCCESS),
+	);
+	lua_setfield(L, honey_tbl, "audio");
+}
+
+
+int audio_engine_init(lua_State *L)
+{
+	ma_engine *engine = malloc(sizeof(ma_engine));
+	if (engine == NULL)
+		hs_throw_error(L, "failed to allocate memory for engine");
+	
+	ma_result result = ma_engine_init(NULL, engine);
+	if (result != MA_SUCCESS)
+		hs_throw_error(L, "failed to initialize audio engine: %d", result);
+	
+	lua_pushlightuserdata(L, engine);
+	return 1;
+}
+
+
+int audio_engine_uninit(lua_State *L)
+{
+	ma_engine *engine;
+	void *engine_ptr;
+	hs_parse_args(L, hs_light(engine_ptr));
+	engine = engine_ptr;
+
+	ma_engine_uninit(engine);
+	free(engine);
+	return 0;
+}
+
+
+int audio_engine_play_sound(lua_State *L)
+{
+	ma_engine *engine;
+	void *engine_ptr;
+	char *filename;
+	hs_parse_args(L, hs_light(engine_ptr), hs_str(filename));
+	engine = engine_ptr;
+
+	ma_engine_play_sound(engine, filename, NULL);
+	return 0;
+}
diff --git a/src/audio/audio.h b/src/audio/audio.h
new file mode 100644
index 0000000..1aa7f43
--- /dev/null
+++ b/src/audio/audio.h
@@ -0,0 +1,8 @@
+#ifndef HONEY_AUDIO_H
+#define HONEY_AUDIO_H
+
+#include <lua.h>
+
+void setup_audio(lua_State *L, int honey_tbl);
+
+#endif
-- 
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