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#include "lua/modules/luax.h"
#include "lua/modules/types.h"
#include "lua/common/je_lua_common.h"
#include "libjin/jin.h"
using namespace JinEngine::Audio;
using namespace JinEngine::Audio::SDL;
using namespace JinEngine::Filesystem;
namespace JinEngine
{
namespace Lua
{
typedef SDLAudio Audio;
typedef SDLSource Source;
struct
{
bool initialized = false;
} context;
LUA_IMPLEMENT int l_init(lua_State* L)
{
if (context.initialized)
{
// Already initialized.
luax_pushboolean(L, true);
return 1;
}
Audio::Setting setting;
setting.samplerate = 44100;
setting.samples = 44100;
context.initialized = Audio::get()->init(&setting);
if (!context.initialized)
{
luax_error(L, "could not init audio");
luax_pushboolean(L, false);
return 1;
}
luax_pushboolean(L, true);
return 1;
}
LUA_IMPLEMENT int l_play(lua_State* L)
{
Audio::get()->play();
return 0;
}
LUA_IMPLEMENT int l_stop(lua_State* L)
{
Audio::get()->stop();
return 0;
}
LUA_IMPLEMENT int l_pause(lua_State* L)
{
Audio::get()->pause();
return 0;
}
LUA_IMPLEMENT int l_resume(lua_State* L)
{
Audio::get()->resume();
return 0;
}
LUA_IMPLEMENT int l_setVolume(lua_State* L)
{
float volume = luax_checknumber(L, 1);
Audio::get()->setVolume(volume);
return 0;
}
LUA_IMPLEMENT int l_newSource(lua_State* L)
{
AssetDatabase* fs = AssetDatabase::get();
const char* f = luax_checkstring(L, 1);
Buffer b;
try
{
if (!fs->exists(f))
throw Exception("No such source file %s.", f);
fs->read(f, b);
}
catch (Exception& e)
{
error(L, "Failed to read source file %s", f);
luax_pushnil(L);
return 1;
}
Source* src = Source::createSource((void*)&b, b.size());
if (src == nullptr)
{
error(L, "Failed to decode source file %s", f);
luax_pushnil(L);
return 1;
}
Proxy* proxy = (Proxy*)luax_newinstance(L, JIN_AUDIO_SOURCE, sizeof(Proxy));
proxy->bind(new Ref<Source>(src, JIN_AUDIO_SOURCE));
return 1;
}
LUA_IMPLEMENT int l_destroy(lua_State* L)
{
Audio* audio = Audio::get();
audio->quit();
return 0;
}
LUA_IMPLEMENT const luaL_Reg f[] = {
{ "init", l_init },
{ "play", l_play },
{ "stop", l_stop },
{ "pause", l_pause },
{ "resume", l_resume },
{ "setVolume", l_setVolume },
{ "newSource", l_newSource },
{ "destroy", l_destroy },
{ 0, 0 }
};
LUA_PORT int luaopen_Source(lua_State* L);
LUA_EXPORT int luaopen_audio(lua_State* L)
{
luaopen_Source(L);
luax_newlib(L, f);
return 1;
}
} // namespace Lua
} // namespace JinEngine
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