X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=theme.cpp;h=defdca171b54448bba2ddce336260ca3e2a95dbe;hb=5c560f35dea9f3aa5f13c42f4a0112a4d05f2152;hp=2fe9d899f0cafd26b4362683551065ab33f13eae;hpb=fedd382abdd2723a2cc9b6868145101fab17b4e7;p=nageru diff --git a/theme.cpp b/theme.cpp index 2fe9d89..defdca1 100644 --- a/theme.cpp +++ b/theme.cpp @@ -37,6 +37,29 @@ extern Mixer *global_mixer; namespace { +// Contains basically the same data as InputState, but does not hold on to +// a reference to the frames. This is important so that we can release them +// without having to wait for Lua's GC. +struct InputStateInfo { + InputStateInfo(const InputState& input_state); + + unsigned last_width[MAX_CARDS], last_height[MAX_CARDS]; +}; + +InputStateInfo::InputStateInfo(const InputState &input_state) +{ + for (unsigned signal_num = 0; signal_num < MAX_CARDS; ++signal_num) { + BufferedFrame frame = input_state.buffered_frames[signal_num][0]; + if (frame.frame == nullptr) { + last_width[signal_num] = last_height[signal_num] = 0; + continue; + } + const PBOFrameAllocator::Userdata *userdata = (const PBOFrameAllocator::Userdata *)frame.frame->userdata; + last_width[signal_num] = userdata->last_width[frame.field_number]; + last_height[signal_num] = userdata->last_height[frame.field_number]; + } +} + class LuaRefWithDeleter { public: LuaRefWithDeleter(mutex *m, lua_State *L, int ref) : m(m), L(L), ref(ref) {} @@ -90,6 +113,15 @@ Effect *get_effect(lua_State *L, int idx) return nullptr; } +InputStateInfo *get_input_state_info(lua_State *L, int idx) +{ + if (luaL_testudata(L, idx, "InputStateInfo")) { + return (InputStateInfo *)lua_touserdata(L, idx); + } + luaL_error(L, "Error: Index #%d was not InputStateInfo\n", idx); + return nullptr; +} + bool checkbool(lua_State* L, int idx) { luaL_checktype(L, idx, LUA_TBOOLEAN); @@ -210,22 +242,6 @@ int LiveInputWrapper_connect_signal(lua_State* L) return 0; } -int LiveInputWrapper_get_width(lua_State* L) -{ - assert(lua_gettop(L) == 1); - LiveInputWrapper *input = (LiveInputWrapper *)luaL_checkudata(L, 1, "LiveInputWrapper"); - lua_pushnumber(L, input->get_width()); - return 1; -} - -int LiveInputWrapper_get_height(lua_State* L) -{ - assert(lua_gettop(L) == 1); - LiveInputWrapper *input = (LiveInputWrapper *)luaL_checkudata(L, 1, "LiveInputWrapper"); - lua_pushnumber(L, input->get_height()); - return 1; -} - int ImageInput_new(lua_State* L) { assert(lua_gettop(L) == 1); @@ -275,6 +291,26 @@ int MixEffect_new(lua_State* L) return wrap_lua_object(L, "MixEffect"); } +int InputStateInfo_get_width(lua_State* L) +{ + assert(lua_gettop(L) == 2); + InputStateInfo *input_state_info = get_input_state_info(L, 1); + Theme *theme = get_theme_updata(L); + int signal_num = theme->map_signal(luaL_checknumber(L, 2)); + lua_pushnumber(L, input_state_info->last_width[signal_num]); + return 1; +} + +int InputStateInfo_get_height(lua_State* L) +{ + assert(lua_gettop(L) == 2); + InputStateInfo *input_state_info = get_input_state_info(L, 1); + Theme *theme = get_theme_updata(L); + int signal_num = theme->map_signal(luaL_checknumber(L, 2)); + lua_pushnumber(L, input_state_info->last_height[signal_num]); + return 1; +} + int Effect_set_float(lua_State *L) { assert(lua_gettop(L) == 3); @@ -342,9 +378,6 @@ const luaL_Reg EffectChain_funcs[] = { const luaL_Reg LiveInputWrapper_funcs[] = { { "connect_signal", LiveInputWrapper_connect_signal }, - // These are only valid during calls to get_chain and the setup chain callback. - { "get_width", LiveInputWrapper_get_width }, - { "get_height", LiveInputWrapper_get_height }, { NULL, NULL } }; @@ -420,6 +453,12 @@ const luaL_Reg MixEffect_funcs[] = { { NULL, NULL } }; +const luaL_Reg InputStateInfo_funcs[] = { + { "get_width", InputStateInfo_get_width }, + { "get_height", InputStateInfo_get_height }, + { NULL, NULL } +}; + } // namespace LiveInputWrapper::LiveInputWrapper(Theme *theme, EffectChain *chain, bool override_bounce) @@ -477,26 +516,6 @@ void LiveInputWrapper::connect_signal(int signal_num) input->set_height(userdata->last_height[frame.field_number]); } -unsigned LiveInputWrapper::get_width() const -{ - if (last_connected_signal_num == -1) { - return 0; - } - BufferedFrame frame = theme->input_state->buffered_frames[last_connected_signal_num][0]; - const PBOFrameAllocator::Userdata *userdata = (const PBOFrameAllocator::Userdata *)frame.frame->userdata; - return userdata->last_width[frame.field_number]; -} - -unsigned LiveInputWrapper::get_height() const -{ - if (last_connected_signal_num == -1) { - return 0; - } - BufferedFrame frame = theme->input_state->buffered_frames[last_connected_signal_num][0]; - const PBOFrameAllocator::Userdata *userdata = (const PBOFrameAllocator::Userdata *)frame.frame->userdata; - return userdata->last_height[frame.field_number]; -} - Theme::Theme(const char *filename, ResourcePool *resource_pool, unsigned num_cards) : resource_pool(resource_pool), num_cards(num_cards) { @@ -513,6 +532,7 @@ 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("InputStateInfo", InputStateInfo_funcs); // Run script. lua_settop(L, 0); @@ -539,12 +559,12 @@ 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); } @@ -559,9 +579,9 @@ 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(L, "InputStateInfo", input_state); - this->input_state = &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); }