imported Löve GLES branch (changeset 1ba9037e558b)

jni/love/src/modules/joystick/sdl/wrap_JoystickModule.cpp

@@ -0,0 +1,216 @@
+/**
+ * Copyright (c) 2006-2013 LOVE Development Team
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ **/
+
+#include "wrap_JoystickModule.h"
+#include "wrap_Joystick.h"
+
+namespace love
+{
+namespace joystick
+{
+namespace sdl
+{
+
+static JoystickModule *instance = 0;
+
+int w_getJoysticks(lua_State *L)
+{
+	int stickcount = instance->getJoystickCount();
+	lua_createtable(L, stickcount, 0);
+
+	for (int i = 0; i < stickcount; i++)
+	{
+		love::joystick::Joystick *stick = instance->getJoystick(i);
+		stick->retain();
+		luax_pushtype(L, "Joystick", JOYSTICK_JOYSTICK_T, stick);
+		lua_rawseti(L, -2, i + 1);
+	}
+
+	return 1;
+}
+
+int w_getIndex(lua_State *L)
+{
+	love::joystick::Joystick *j = luax_checkjoystick(L, 1);
+	int index = instance->getIndex(j);
+	if (index >= 0)
+		lua_pushinteger(L, index + 1);
+	else
+		lua_pushnil(L);
+	return 1;
+}
+
+int w_getJoystickCount(lua_State *L)
+{
+	lua_pushinteger(L, instance->getJoystickCount());
+	return 1;
+}
+
+int w_setGamepadMapping(lua_State *L)
+{
+	// Only accept a GUID string. We don't accept a Joystick object because
+	// the gamepad mapping applies to all joysticks with the same GUID (e.g. all
+	// Xbox 360 controllers on the system), rather than individual objects.
+	const char *guid = luaL_checkstring(L, 1);
+
+	const char *gpbindstr = luaL_checkstring(L, 2);
+	Joystick::GamepadInput gpinput;
+
+	if (love::joystick::Joystick::getConstant(gpbindstr, gpinput.axis))
+		gpinput.type = Joystick::INPUT_TYPE_AXIS;
+	else if (love::joystick::Joystick::getConstant(gpbindstr, gpinput.button))
+		gpinput.type = Joystick::INPUT_TYPE_BUTTON;
+	else
+		return luaL_error(L, "Invalid gamepad axis/button: %s", gpbindstr);
+
+	const char *jinputtypestr = luaL_checkstring(L, 3);
+	Joystick::JoystickInput jinput;
+
+	if (!love::joystick::Joystick::getConstant(jinputtypestr, jinput.type))
+		return luaL_error(L, "Invalid joystick input type: %s", jinputtypestr);
+
+	const char *hatstr;
+	switch (jinput.type)
+	{
+	case Joystick::INPUT_TYPE_AXIS:
+		jinput.axis = luaL_checkint(L, 4) - 1;
+		break;
+	case Joystick::INPUT_TYPE_BUTTON:
+		jinput.button = luaL_checkint(L, 4) - 1;
+		break;
+	case Joystick::INPUT_TYPE_HAT:
+		// Hats need both a hat index and a hat value.
+		jinput.hat.index = luaL_checkint(L, 4) - 1;
+		hatstr = luaL_checkstring(L, 5);
+		if (!love::joystick::Joystick::getConstant(hatstr, jinput.hat.value))
+			return luaL_error(L, "Invalid joystick hat: %s", hatstr);
+		break;
+	default:
+		return luaL_error(L, "Invalid joystick input type: %s", jinputtypestr);
+	}
+
+	bool success = false;
+	EXCEPT_GUARD(success = instance->setGamepadMapping(guid, gpinput, jinput);)
+
+	luax_pushboolean(L, success);
+	return 1;
+}
+
+int w_getGamepadMapping(lua_State *L)
+{
+	std::string guid;
+
+	// Accept either a GUID string or a Joystick object. This way we can re-use
+	// the function for Joystick:getGamepadMapping.
+	if (lua_type(L, 1) == LUA_TSTRING)
+		guid = luax_checkstring(L, 1);
+	else
+	{
+		love::joystick::Joystick *stick = luax_checkjoystick(L, 1);
+		guid = stick->getGUID();
+	}
+
+	const char *gpbindstr = luaL_checkstring(L, 2);
+	Joystick::GamepadInput gpinput;
+
+	if (love::joystick::Joystick::getConstant(gpbindstr, gpinput.axis))
+		gpinput.type = Joystick::INPUT_TYPE_AXIS;
+	else if (love::joystick::Joystick::getConstant(gpbindstr, gpinput.button))
+		gpinput.type = Joystick::INPUT_TYPE_BUTTON;
+	else
+		return luaL_error(L, "Invalid gamepad axis/button: %s", gpbindstr);
+
+	Joystick::JoystickInput jinput;
+	jinput.type = Joystick::INPUT_TYPE_MAX_ENUM;
+
+	EXCEPT_GUARD(jinput = instance->getGamepadMapping(guid, gpinput);)
+
+	if (jinput.type == Joystick::INPUT_TYPE_MAX_ENUM)
+		return 0;
+
+	const char *inputtypestr;
+	if (!love::joystick::Joystick::getConstant(jinput.type, inputtypestr))
+		return luaL_error(L, "Unknown joystick input type.");
+
+	lua_pushstring(L, inputtypestr);
+
+	const char *hatstr;
+	switch (jinput.type)
+	{
+	case Joystick::INPUT_TYPE_AXIS:
+		lua_pushinteger(L, jinput.axis + 1);
+		return 2;
+	case Joystick::INPUT_TYPE_BUTTON:
+		lua_pushinteger(L, jinput.button + 1);
+		return 2;
+	case Joystick::INPUT_TYPE_HAT:
+		lua_pushinteger(L, jinput.hat.index + 1);
+		if (love::joystick::Joystick::getConstant(jinput.hat.value, hatstr))
+		{
+			lua_pushstring(L, hatstr);
+			return 3;
+		}
+		else
+			return luaL_error(L, "Unknown joystick hat.");
+	default:
+		break; // ?
+	}
+
+	return 1;
+}
+
+// List of functions to wrap.
+static const luaL_Reg functions[] =
+{
+	{ "getJoysticks", w_getJoysticks },
+	{ "getJoystickCount", w_getJoystickCount },
+	{ "setGamepadMapping", w_setGamepadMapping },
+	{ "getGamepadMapping", w_getGamepadMapping },
+	{ 0, 0 }
+};
+
+static const lua_CFunction types[] =
+{
+	luaopen_joystick,
+	0,
+};
+
+extern "C" int luaopen_love_joystick(lua_State *L)
+{
+	if (instance == 0)
+	{
+		EXCEPT_GUARD(instance = new JoystickModule();)
+	}
+	else
+		instance->retain();
+
+	WrappedModule w;
+	w.module = instance;
+	w.name = "joystick";
+	w.flags = MODULE_T;
+	w.functions = functions;
+	w.types = types;
+
+	return luax_register_module(L, w);
+}
+
+} // sdl
+} // joystick
+} // love