void ImGui_ImplAllegro5_Shutdown() { ImGui_ImplAllegro5_InvalidateDeviceObjects(); g_Display = NULL; g_Time = 0.0; if (g_VertexDecl) al_destroy_vertex_decl(g_VertexDecl); g_VertexDecl = NULL; if (g_ClipboardTextData) al_free(g_ClipboardTextData); g_ClipboardTextData = NULL; }
int main(int, char**) { // Setup Allegro al_init(); al_install_keyboard(); al_install_mouse(); al_init_primitives_addon(); al_set_new_display_flags(ALLEGRO_RESIZABLE); ALLEGRO_DISPLAY* display = al_create_display(1280, 720); al_set_window_title(display, "Dear ImGui Allegro 5 example"); ALLEGRO_EVENT_QUEUE* queue = al_create_event_queue(); al_register_event_source(queue, al_get_display_event_source(display)); al_register_event_source(queue, al_get_keyboard_event_source()); al_register_event_source(queue, al_get_mouse_event_source()); // Setup Dear ImGui binding IMGUI_CHECKVERSION(); ImGui::CreateContext(); ImGuiIO& io = ImGui::GetIO(); (void)io; //io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls ImGui_ImplAllegro5_Init(display); // Setup style ImGui::StyleColorsDark(); //ImGui::StyleColorsClassic(); // Load Fonts // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them. // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple. // - If the file cannot be loaded, the function will return NULL. Please handle those errors in your application (e.g. use an assertion, or display an error and quit). // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call. // - Read 'misc/fonts/README.txt' for more instructions and details. // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ ! //io.Fonts->AddFontDefault(); //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f); //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f); //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f); //io.Fonts->AddFontFromFileTTF("../../misc/fonts/ProggyTiny.ttf", 10.0f); //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, NULL, io.Fonts->GetGlyphRangesJapanese()); //IM_ASSERT(font != NULL); bool show_demo_window = true; bool show_another_window = false; ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f); // Main loop bool running = true; while (running) { // Poll and handle events (inputs, window resize, etc.) // You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs. // - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application. // - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application. // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags. ALLEGRO_EVENT ev; while (al_get_next_event(queue, &ev)) { ImGui_ImplAllegro5_ProcessEvent(&ev); if (ev.type == ALLEGRO_EVENT_DISPLAY_CLOSE) running = false; if (ev.type == ALLEGRO_EVENT_DISPLAY_RESIZE) { ImGui_ImplAllegro5_InvalidateDeviceObjects(); al_acknowledge_resize(display); ImGui_ImplAllegro5_CreateDeviceObjects(); } } // Start the Dear ImGui frame ImGui_ImplAllegro5_NewFrame(); ImGui::NewFrame(); // 1. Show the big demo window (Most of the sample code is in ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear ImGui!). if (show_demo_window) ImGui::ShowDemoWindow(&show_demo_window); // 2. Show a simple window that we create ourselves. We use a Begin/End pair to created a named window. { static float f = 0.0f; static int counter = 0; ImGui::Begin("Hello, world!"); // Create a window called "Hello, world!" and append into it. ImGui::Text("This is some useful text."); // Display some text (you can use a format strings too) ImGui::Checkbox("Demo Window", &show_demo_window); // Edit bools storing our window open/close state ImGui::Checkbox("Another Window", &show_another_window); ImGui::SliderFloat("float", &f, 0.0f, 1.0f); // Edit 1 float using a slider from 0.0f to 1.0f ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats representing a color if (ImGui::Button("Button")) // Buttons return true when clicked (most widgets return true when edited/activated) counter++; ImGui::SameLine(); ImGui::Text("counter = %d", counter); ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate); ImGui::End(); } // 3. Show another simple window. if (show_another_window) { ImGui::Begin("Another Window", &show_another_window); // Pass a pointer to our bool variable (the window will have a closing button that will clear the bool when clicked) ImGui::Text("Hello from another window!"); if (ImGui::Button("Close Me")) show_another_window = false; ImGui::End(); } // Rendering ImGui::Render(); al_clear_to_color(al_map_rgba_f(clear_color.x, clear_color.y, clear_color.z, clear_color.w)); ImGui_ImplAllegro5_RenderDrawData(ImGui::GetDrawData()); al_flip_display(); } // Cleanup ImGui_ImplAllegro5_Shutdown(); ImGui::DestroyContext(); al_destroy_event_queue(queue); al_destroy_display(display); return 0; }
static inline void HandleEvent(struct Game* game, ALLEGRO_EVENT* ev) { switch (ev->type) { case ALLEGRO_EVENT_DISPLAY_HALT_DRAWING: PauseExecution(game); al_acknowledge_drawing_halt(game->display); break; case ALLEGRO_EVENT_DISPLAY_RESUME_DRAWING: al_acknowledge_drawing_resume(game->display); ReloadGamestates(game); ResumeExecution(game); break; case ALLEGRO_EVENT_DISPLAY_SWITCH_OUT: if (game->config.autopause) { PrintConsole(game, "Focus lost, autopausing..."); PauseExecution(game); } break; case ALLEGRO_EVENT_DISPLAY_SWITCH_IN: if (game->config.autopause) { if (game->config.debug.enabled && game->config.debug.livereload) { ReloadCode(game); } ResumeExecution(game); } break; case ALLEGRO_EVENT_DISPLAY_RESIZE: PrintConsole(game, "Resize event: %dx%d", ev->display.width, ev->display.height); #ifdef LIBSUPERDERPY_IMGUI ImGui_ImplAllegro5_InvalidateDeviceObjects(); #endif al_acknowledge_resize(game->display); #ifdef LIBSUPERDERPY_IMGUI ImGui_ImplAllegro5_CreateDeviceObjects(); #endif // SetupViewport can be expensive, so don't do it when the resize event is already outdated or doesn't change anything if (((ev->display.width != game->_priv.window_width) || (ev->display.height != game->_priv.window_height)) && (ev->display.width == al_get_display_width(game->display)) && (ev->display.height == al_get_display_height(game->display))) { SetupViewport(game); } break; case ALLEGRO_EVENT_KEY_DOWN: #ifdef ALLEGRO_ANDROID if ((ev->keyboard.keycode == ALLEGRO_KEY_MENU) || (ev->keyboard.keycode == ALLEGRO_KEY_TILDE) || (ev->keyboard.keycode == ALLEGRO_KEY_BACKQUOTE)) { #else if ((ev->keyboard.keycode == ALLEGRO_KEY_TILDE) || (ev->keyboard.keycode == ALLEGRO_KEY_BACKQUOTE)) { #endif game->_priv.showconsole = !game->_priv.showconsole; if ((ev->keyboard.modifiers & ALLEGRO_KEYMOD_CTRL) && (game->config.debug.enabled)) { game->_priv.showtimeline = game->_priv.showconsole; } } if (ev->keyboard.keycode == ALLEGRO_KEY_F12) { DrawGamestates(game); int flags = al_get_new_bitmap_flags(); al_set_new_bitmap_flags(ALLEGRO_MEMORY_BITMAP); ALLEGRO_BITMAP* bitmap = al_create_bitmap(al_get_display_width(game->display), al_get_display_height(game->display)); al_set_new_bitmap_flags(flags); ALLEGRO_BITMAP* target = al_get_target_bitmap(); al_set_target_bitmap(bitmap); al_draw_bitmap(al_get_backbuffer(game->display), 0, 0, 0); al_set_target_bitmap(target); PrintConsole(game, "Screenshot made! Storing..."); struct ScreenshotThreadData* data = malloc(sizeof(struct ScreenshotThreadData)); data->game = game; data->bitmap = bitmap; #ifndef LIBSUPERDERPY_SINGLE_THREAD al_run_detached_thread(ScreenshotThread, data); #else ScreenshotThread(data); #endif } break; default: break; } #ifdef MAEMO5 // on Maemo we get mouse events instead of touch ones, so we'll rewrite them by ourselves if ((ev->type == ALLEGRO_EVENT_MOUSE_AXES) || (ev->type == ALLEGRO_EVENT_MOUSE_BUTTON_DOWN) || (ev->type == ALLEGRO_EVENT_MOUSE_BUTTON_UP)) { switch (ev->type) { case ALLEGRO_EVENT_MOUSE_BUTTON_DOWN: ev->type = ALLEGRO_EVENT_TOUCH_BEGIN; break; case ALLEGRO_EVENT_MOUSE_BUTTON_UP: ev->type = ALLEGRO_EVENT_TOUCH_END; break; case ALLEGRO_EVENT_MOUSE_AXES: ev->type = ALLEGRO_EVENT_TOUCH_MOVE; break; default: break; } ALLEGRO_DISPLAY* display = ev->mouse.display; float dx = ev->mouse.dx; float dy = ev->mouse.dy; float x = ev->mouse.x; float y = ev->mouse.y; double timestamp = ev->mouse.timestamp; ev->touch.display = display; ev->touch.dx = dx; ev->touch.dy = dy; ev->touch.id = 0; ev->touch.primary = true; ev->touch.source = (ALLEGRO_TOUCH_INPUT*)al_get_touch_input_event_source(); ev->touch.timestamp = timestamp; ev->touch.x = x; ev->touch.y = y; } #endif } static inline void HandleDebugEvent(struct Game* game, ALLEGRO_EVENT* ev) { switch (ev->type) { case ALLEGRO_EVENT_KEY_DOWN: switch (ev->keyboard.keycode) { case ALLEGRO_KEY_F1: if (!game->_priv.paused) { PauseExecution(game); } else { ReloadCode(game); ResumeExecution(game); } break; case ALLEGRO_KEY_F9: game->_priv.speed = ALLEGRO_BPS_TO_SECS(60.0); game->_priv.showconsole = true; PrintConsole(game, "DEBUG: Gameplay speed: 1.00x"); break; case ALLEGRO_KEY_F10: { double speed = ALLEGRO_BPS_TO_SECS(game->_priv.speed); // inverting speed -= 10; if (speed < 10) { speed = 10; } game->_priv.speed = ALLEGRO_BPS_TO_SECS(speed); game->_priv.showconsole = true; PrintConsole(game, "DEBUG: Gameplay speed: %.2fx", speed / 60.0); } break; case ALLEGRO_KEY_F11: { double speed = ALLEGRO_BPS_TO_SECS(game->_priv.speed); // inverting speed += 10; if (speed > 600) { speed = 600; } game->_priv.speed = ALLEGRO_BPS_TO_SECS(speed); game->_priv.showconsole = true; PrintConsole(game, "DEBUG: Gameplay speed: %.2fx", speed / 60.0); } break; } break; default: break; } } static inline bool MainloopEvents(struct Game* game) { do { ALLEGRO_EVENT ev; if (game->_priv.paused && !IS_EMSCRIPTEN) { // there's no frame flipping when paused, so avoid pointless busylooping al_wait_for_event(game->_priv.event_queue, &ev); } else if (!al_get_next_event(game->_priv.event_queue, &ev)) { break; } #ifdef LIBSUPERDERPY_IMGUI ImGui_ImplAllegro5_ProcessEvent(&ev); switch (ev.type) { case ALLEGRO_EVENT_KEY_CHAR: case ALLEGRO_EVENT_KEY_DOWN: case ALLEGRO_EVENT_KEY_UP: if (igGetIO()->WantCaptureKeyboard) { continue; } break; case ALLEGRO_EVENT_MOUSE_AXES: case ALLEGRO_EVENT_MOUSE_BUTTON_DOWN: case ALLEGRO_EVENT_MOUSE_BUTTON_UP: case ALLEGRO_EVENT_TOUCH_BEGIN: case ALLEGRO_EVENT_TOUCH_CANCEL: case ALLEGRO_EVENT_TOUCH_END: case ALLEGRO_EVENT_TOUCH_MOVE: if (igGetIO()->WantCaptureMouse) { continue; } break; default: break; } #endif if (game->_priv.params.handlers.event) { if ((*game->_priv.params.handlers.event)(game, &ev)) { continue; } } if (ev.type == ALLEGRO_EVENT_DISPLAY_CLOSE) { EventGamestates(game, &ev); return false; } HandleEvent(game, &ev); if (game->config.debug.enabled) { HandleDebugEvent(game, &ev); } EventGamestates(game, &ev); } while (!al_is_event_queue_empty(game->_priv.event_queue)); return true; } static inline bool MainloopTick(struct Game* game) { if (game->_priv.paused) { return true; } struct Gamestate* tmp = game->_priv.gamestates; #ifdef __EMSCRIPTEN__ emscripten_pause_main_loop(); #endif game->_priv.loading.to_load = 0; game->_priv.loading.loaded = 0; game->_priv.loading.lock = true; game->loading.progress = 0; // TODO: support gamestate dependences/ordering while (tmp) { if (tmp->pending_stop) { PrintConsole(game, "Stopping gamestate \"%s\"...", tmp->name); game->_priv.current_gamestate = tmp; (*tmp->api->stop)(game, tmp->data); tmp->started = false; tmp->pending_stop = false; PrintConsole(game, "Gamestate \"%s\" stopped successfully.", tmp->name); } if (tmp->pending_load) { game->_priv.loading.to_load++; } tmp = tmp->next; } tmp = game->_priv.gamestates; while (tmp) { if (tmp->pending_unload) { #ifdef __EMSCRIPTEN__ al_detach_voice(game->audio.v); #endif PrintConsole(game, "Unloading gamestate \"%s\"...", tmp->name); tmp->loaded = false; tmp->pending_unload = false; game->_priv.current_gamestate = tmp; (*tmp->api->unload)(game, tmp->data); PrintConsole(game, "Gamestate \"%s\" unloaded successfully.", tmp->name); #ifdef __EMSCRIPTEN__ al_attach_mixer_to_voice(game->audio.mixer, game->audio.v); #endif } if (tmp->pending_load) { #ifdef __EMSCRIPTEN__ al_detach_voice(game->audio.v); #endif if (tmp->show_loading && game->_priv.loading.gamestate->open) { (*game->_priv.loading.gamestate->api->start)(game, game->_priv.loading.gamestate->data); } if (!tmp->api) { if (!OpenGamestate(game, tmp, true) || !LinkGamestate(game, tmp)) { tmp->pending_load = false; tmp->pending_start = false; continue; } } if (tmp->api) { PrintConsole(game, "Loading gamestate \"%s\"...", tmp->name); game->_priv.loading.progress = 0; game->_priv.loading.current = tmp; game->_priv.current_gamestate = tmp; struct GamestateLoadingThreadData data = {.game = game, .gamestate = tmp, .bitmap_flags = al_get_new_bitmap_flags()}; game->_priv.loading.in_progress = true; double time = al_get_time(); game->_priv.loading.time = time; CalculateProgress(game); if (tmp->show_loading) { game->loading.shown = true; DrawGamestates(game); DrawConsole(game); al_flip_display(); #ifdef __EMSCRIPTEN__ emscripten_sleep(0); #endif } #ifndef LIBSUPERDERPY_SINGLE_THREAD al_run_detached_thread(GamestateLoadingThread, &data); while (game->_priv.loading.in_progress) { double delta = al_get_time() - game->_priv.loading.time; game->time += delta; // TODO: ability to disable passing time during loading game->_priv.loading.time += delta; if (game->loading.shown && game->_priv.loading.gamestate->open) { (*game->_priv.loading.gamestate->api->logic)(game, game->_priv.loading.gamestate->data, delta); } DrawGamestates(game); if (game->_priv.texture_sync) { al_convert_memory_bitmaps(); game->_priv.texture_sync = false; al_signal_cond(game->_priv.texture_sync_cond); game->_priv.loading.time = al_get_time(); // TODO: rethink time management during loading } DrawConsole(game); al_flip_display(); if (game->_priv.bsod_sync) { al_set_target_bitmap(NULL); game->_priv.bsod_sync = false; al_signal_cond(game->_priv.bsod_cond); } al_lock_mutex(game->_priv.bsod_mutex); while (game->_priv.in_bsod) { al_wait_cond(game->_priv.bsod_cond, game->_priv.bsod_mutex); } al_unlock_mutex(game->_priv.bsod_mutex); } #else GamestateLoadingThread(&data); DrawGamestates(game); DrawConsole(game); al_flip_display(); #ifdef __EMSCRIPTEN__ emscripten_sleep(0); #endif al_convert_memory_bitmaps(); #endif al_set_new_bitmap_flags(data.bitmap_flags); ReloadShaders(game, false); if (tmp->api->post_load) { PrintConsole(game, "[%s] Post-loading...", tmp->name); tmp->api->post_load(game, tmp->data); } game->_priv.loading.progress++; CalculateProgress(game); PrintConsole(game, "Gamestate \"%s\" loaded successfully in %f seconds.", tmp->name, al_get_time() - time); game->_priv.loading.loaded++; DrawGamestates(game); DrawConsole(game); al_flip_display(); #ifdef __EMSCRIPTEN__ emscripten_sleep(0); #endif tmp->loaded = true; tmp->pending_load = false; } if (tmp->show_loading && game->_priv.loading.gamestate->open) { (*game->_priv.loading.gamestate->api->stop)(game, game->_priv.loading.gamestate->data); } tmp->show_loading = true; game->loading.shown = false; game->_priv.timestamp = al_get_time(); #ifdef __EMSCRIPTEN__ al_attach_mixer_to_voice(game->audio.mixer, game->audio.v); #endif } tmp = tmp->next; }