mirror of
https://github.com/bjornbytes/lovr.git
synced 2024-07-08 23:23:38 +00:00
192 lines
5.1 KiB
C
192 lines
5.1 KiB
C
#include "api.h"
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#include "api/event.h"
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#include "event/event.h"
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const char* EventTypes[] = {
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[EVENT_QUIT] = "quit",
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[EVENT_FOCUS] = "focus",
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[EVENT_MOUNT] = "mount",
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[EVENT_THREAD_ERROR] = "threaderror",
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[EVENT_CONTROLLER_ADDED] = "controlleradded",
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[EVENT_CONTROLLER_REMOVED] = "controllerremoved",
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[EVENT_CONTROLLER_PRESSED] = "controllerpressed",
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[EVENT_CONTROLLER_RELEASED] = "controllerreleased",
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};
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static _Thread_local int pollRef;
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void luax_checkvariant(lua_State* L, int index, Variant* variant) {
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int type = lua_type(L, index);
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switch (type) {
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case LUA_TNIL:
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variant->type = TYPE_NIL;
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break;
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case LUA_TBOOLEAN:
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variant->type = TYPE_BOOLEAN;
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variant->value.boolean = lua_toboolean(L, index);
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break;
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case LUA_TNUMBER:
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variant->type = TYPE_NUMBER;
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variant->value.number = lua_tonumber(L, index);
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break;
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case LUA_TSTRING:
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variant->type = TYPE_STRING;
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size_t length;
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const char* string = lua_tolstring(L, index, &length);
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variant->value.string = calloc(1, length + 1);
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memcpy(variant->value.string, string, length);
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break;
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case LUA_TUSERDATA:
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variant->type = TYPE_OBJECT;
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variant->value.ref = *(Ref**) lua_touserdata(L, index);
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lovrRetain(variant->value.ref);
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break;
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default:
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lovrThrow("Bad type for Channel:push: %s", lua_typename(L, type));
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return;
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}
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}
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int luax_pushvariant(lua_State* L, Variant* variant) {
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switch (variant->type) {
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case TYPE_NIL: lua_pushnil(L); return 1;
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case TYPE_BOOLEAN: lua_pushboolean(L, variant->value.boolean); return 1;
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case TYPE_NUMBER: lua_pushnumber(L, variant->value.number); return 1;
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case TYPE_STRING: lua_pushstring(L, variant->value.string); free(variant->value.string); return 1;
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case TYPE_OBJECT: luax_pushobject(L, variant->value.ref); lovrRelease(variant->value.ref); return 1;
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}
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}
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static int nextEvent(lua_State* L) {
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Event event;
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if (!lovrEventPoll(&event)) {
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return 0;
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}
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if (event.type == EVENT_CUSTOM) {
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lua_pushstring(L, event.data.custom.name);
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} else {
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lua_pushstring(L, EventTypes[event.type]);
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}
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switch (event.type) {
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case EVENT_QUIT:
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if (event.data.quit.restart) {
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lua_pushliteral(L, "restart");
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} else {
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lua_pushnumber(L, event.data.quit.exitCode);
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}
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return 2;
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case EVENT_FOCUS:
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case EVENT_MOUNT:
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lua_pushboolean(L, event.data.boolean.value);
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return 2;
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case EVENT_THREAD_ERROR:
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luax_pushobject(L, event.data.thread.thread);
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lua_pushstring(L, event.data.thread.error);
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free((void*) event.data.thread.error);
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return 3;
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case EVENT_CONTROLLER_ADDED:
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case EVENT_CONTROLLER_REMOVED:
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luax_pushobject(L, event.data.controller.controller);
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lovrRelease(event.data.controller.controller);
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return 2;
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case EVENT_CONTROLLER_PRESSED:
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case EVENT_CONTROLLER_RELEASED:
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luax_pushobject(L, event.data.controller.controller);
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lua_pushstring(L, ControllerButtons[event.data.controller.button]);
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return 3;
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case EVENT_CUSTOM:
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for (int i = 0; i < event.data.custom.count; i++) {
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luax_pushvariant(L, &event.data.custom.data[i]);
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}
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return event.data.custom.count + 1;
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default:
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return 1;
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}
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}
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static int l_lovrEventClear(lua_State* L) {
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lovrEventClear();
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return 0;
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}
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static int l_lovrEventPoll(lua_State* L) {
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lua_rawgeti(L, LUA_REGISTRYINDEX, pollRef);
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return 1;
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}
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static int l_lovrEventPump(lua_State* L) {
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lovrEventPump();
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return 0;
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}
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static int l_lovrEventPush(lua_State* L) {
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CustomEvent eventData;
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const char* name = luaL_checkstring(L, 1);
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strncpy(eventData.name, name, MAX_EVENT_NAME_LENGTH - 1);
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eventData.count = MIN(lua_gettop(L) - 1, 4);
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for (int i = 0; i < eventData.count; i++) {
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luax_checkvariant(L, 2 + i, &eventData.data[i]);
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}
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lovrEventPush((Event) { .type = EVENT_CUSTOM, .data.custom = eventData });
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return 0;
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}
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static int l_lovrEventQuit(lua_State* L) {
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EventData data;
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int argType = lua_type(L, 1);
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if (argType == LUA_TSTRING && 0 == strcmp("restart", lua_tostring(L, 1))) {
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data.quit.restart = true;
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data.quit.exitCode = 0;
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} else if (argType == LUA_TNUMBER || lua_isnoneornil(L, 1)) {
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data.quit.restart = false;
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data.quit.exitCode = luaL_optint(L, 1, 0);
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} else {
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return luaL_argerror (L, 1, "number, nil or the exact string 'restart' expected");
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}
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EventType type = EVENT_QUIT;
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Event event = { .type = type, .data = data };
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lovrEventPush(event);
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return 0;
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}
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static const luaL_Reg lovrEvent[] = {
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{ "clear", l_lovrEventClear },
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{ "poll", l_lovrEventPoll },
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{ "pump", l_lovrEventPump },
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{ "push", l_lovrEventPush },
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{ "quit", l_lovrEventQuit },
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{ NULL, NULL }
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};
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int luaopen_lovr_event(lua_State* L) {
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lua_newtable(L);
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luaL_register(L, NULL, lovrEvent);
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// Store nextEvent in the registry to avoid creating a closure every time we poll for events.
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lua_pushcfunction(L, nextEvent);
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pollRef = luaL_ref(L, LUA_REGISTRYINDEX);
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if (lovrEventInit()) {
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luax_atexit(L, lovrEventDestroy);
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}
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return 1;
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}
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