X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=theme.cpp;h=aed350f0973ac50b81307f99b128797d448351d0;hb=2b806ed340112b4b464b6f2b9c34e4873de5f1c5;hp=8229bdc0395ae3bcbc61b23e67643fba79a0bef9;hpb=206659626a57120fecc27673e94bc444b09bc713;p=nageru

diff --git a/theme.cpp b/theme.cpp
index 8229bdc..aed350f 100644
--- a/theme.cpp
+++ b/theme.cpp
@@ -90,6 +90,15 @@ Effect *get_effect(lua_State *L, int idx)
 	return nullptr;
 }
 
+InputState *get_input_state(lua_State *L, int idx)
+{
+	if (luaL_testudata(L, idx, "InputState")) {
+		return (InputState *)lua_touserdata(L, idx);
+	}
+	luaL_error(L, "Error: Index #%d was not InputState\n", idx);
+	return nullptr;
+}
+
 bool checkbool(lua_State* L, int idx)
 {
 	luaL_checktype(L, idx, LUA_TBOOLEAN);
@@ -259,6 +268,36 @@ int MixEffect_new(lua_State* L)
 	return wrap_lua_object<MixEffect>(L, "MixEffect");
 }
 
+int InputState_gc(lua_State* L)
+{
+	assert(lua_gettop(L) == 1);
+	InputState *input_state = get_input_state(L, 1);
+	input_state->~InputState();
+	return 0;
+}
+
+int InputState_get_width(lua_State* L)
+{
+	assert(lua_gettop(L) == 2);
+	InputState *input_state = (InputState *)lua_touserdata(L, 1);
+	int signal_num = luaL_checknumber(L, 2);
+	BufferedFrame frame = input_state->buffered_frames[signal_num][0];
+	const PBOFrameAllocator::Userdata *userdata = (const PBOFrameAllocator::Userdata *)frame.frame->userdata;
+	lua_pushnumber(L, userdata->last_width[frame.field_number]);
+	return 1;
+}
+
+int InputState_get_height(lua_State* L)
+{
+	assert(lua_gettop(L) == 2);
+	InputState *input_state = (InputState *)lua_touserdata(L, 1);
+	int signal_num = luaL_checknumber(L, 2);
+	BufferedFrame frame = input_state->buffered_frames[signal_num][0];
+	const PBOFrameAllocator::Userdata *userdata = (const PBOFrameAllocator::Userdata *)frame.frame->userdata;
+	lua_pushnumber(L, userdata->last_height[frame.field_number]);
+	return 1;
+}
+
 int Effect_set_float(lua_State *L)
 {
 	assert(lua_gettop(L) == 3);
@@ -401,6 +440,13 @@ const luaL_Reg MixEffect_funcs[] = {
 	{ NULL, NULL }
 };
 
+const luaL_Reg InputState_funcs[] = {
+	{ "__gc", InputState_gc },
+	{ "get_width", InputState_get_width },
+	{ "get_height", InputState_get_height },
+	{ NULL, NULL }
+};
+
 }  // namespace
 
 LiveInputWrapper::LiveInputWrapper(Theme *theme, EffectChain *chain, bool override_bounce)
@@ -474,6 +520,7 @@ Theme::Theme(const char *filename, ResourcePool *resource_pool, unsigned num_car
 	register_class("OverlayEffect", OverlayEffect_funcs);
 	register_class("ResizeEffect", ResizeEffect_funcs);
 	register_class("MixEffect", MixEffect_funcs);
+	register_class("InputState", InputState_funcs);
 
 	// Run script.
 	lua_settop(L, 0);
@@ -500,12 +547,12 @@ Theme::Theme(const char *filename, ResourcePool *resource_pool, unsigned num_car
 void Theme::register_class(const char *class_name, const luaL_Reg *funcs)
 {
 	assert(lua_gettop(L) == 0);
-	luaL_newmetatable(L, class_name);
+	luaL_newmetatable(L, class_name);  // mt = {}
 	lua_pushlightuserdata(L, this);
-	luaL_setfuncs(L, funcs, 1);
+	luaL_setfuncs(L, funcs, 1);        // for (name,f in funcs) { mt[name] = f, with upvalue {theme} }
 	lua_pushvalue(L, -1);
-	lua_setfield(L, -2, "__index");
-	lua_setglobal(L, class_name);
+	lua_setfield(L, -2, "__index");    // mt.__index = mt
+	lua_setglobal(L, class_name);      // ClassName = mt
 	assert(lua_gettop(L) == 0);
 }
 
@@ -520,8 +567,9 @@ Theme::Chain Theme::get_chain(unsigned num, float t, unsigned width, unsigned he
 	lua_pushnumber(L, t);
 	lua_pushnumber(L, width);
 	lua_pushnumber(L, height);
+	wrap_lua_object<InputState>(L, "InputState", input_state);
 
-	if (lua_pcall(L, 4, 2, 0) != 0) {
+	if (lua_pcall(L, 5, 2, 0) != 0) {
 		fprintf(stderr, "error running function `get_chain': %s\n", lua_tostring(L, -1));
 		exit(1);
 	}