💿🐜 Antkeeper source code
https://antkeeper.com
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498 lines
16 KiB
498 lines
16 KiB
/*
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* Copyright (C) 2023 Christopher J. Howard
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*
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* This file is part of Antkeeper source code.
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*
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* Antkeeper source code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Antkeeper source code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <engine/app/sdl/sdl-window-manager.hpp>
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#include <engine/app/sdl/sdl-window.hpp>
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#include <engine/debug/log.hpp>
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#include <engine/config.hpp>
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#include <stdexcept>
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namespace app {
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sdl_window_manager::sdl_window_manager()
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{
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// Init SDL events and video subsystems
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debug::log::trace("Initializing SDL events and video subsystems...");
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if (SDL_InitSubSystem(SDL_INIT_EVENTS | SDL_INIT_VIDEO) != 0)
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{
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debug::log::fatal("Failed to initialize SDL events and video subsystems: {}", SDL_GetError());
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throw std::runtime_error("Failed to initialize SDL events and video subsystems");
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}
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debug::log::trace("Initialized SDL events and video subsystems");
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// Query displays
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const int display_count = SDL_GetNumVideoDisplays();
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if (display_count < 1)
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{
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debug::log::warning("No displays detected: {}", SDL_GetError());
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}
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else
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{
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// Allocate displays
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displays.resize(display_count);
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debug::log::info("Display count: {}", display_count);
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for (int i = 0; i < display_count; ++i)
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{
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// Update display state
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update_display(i);
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// Log display information
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display& display = displays[i];
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const auto display_resolution = display.get_bounds().size();
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debug::log::info("Display {} name: \"{}\"; resolution: {}x{}; refresh rate: {}Hz; DPI: {}", i, display.get_name(), display_resolution.x(), display_resolution.y(), display.get_refresh_rate(), display.get_dpi());
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}
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}
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// Load OpenGL library
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debug::log::trace("Loading OpenGL library...");
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if (SDL_GL_LoadLibrary(nullptr) != 0)
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{
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debug::log::fatal("Failed to load OpenGL library: {}", SDL_GetError());
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throw std::runtime_error("Failed to load OpenGL library");
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}
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debug::log::trace("Loaded OpenGL library");
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// Set OpenGL-related window creation hints
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SDL_GL_SetAttribute(SDL_GL_ACCELERATED_VISUAL, 1);
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SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, config::opengl_version_major);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, config::opengl_version_minor);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
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SDL_GL_SetAttribute(SDL_GL_RED_SIZE, config::opengl_min_red_size);
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SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, config::opengl_min_green_size);
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SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, config::opengl_min_blue_size);
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SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, config::opengl_min_alpha_size);
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SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, config::opengl_min_depth_size);
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SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, config::opengl_min_stencil_size);
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}
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sdl_window_manager::~sdl_window_manager()
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{
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// Quit SDL video subsystem
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debug::log::trace("Quitting SDL video subsystem...");
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SDL_QuitSubSystem(SDL_INIT_VIDEO);
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debug::log::trace("Quit SDL video subsystem");
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}
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window* sdl_window_manager::create_window
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(
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const std::string& title,
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const math::vector<int, 2>& windowed_position,
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const math::vector<int, 2>& windowed_size,
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bool maximized,
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bool fullscreen,
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bool v_sync
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)
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{
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// Create new window
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app::sdl_window* window = new app::sdl_window
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(
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title,
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windowed_position,
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windowed_size,
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maximized,
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fullscreen,
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v_sync
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);
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// Map internal SDL window to window
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window_map[window->internal_window] = window;
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return window;
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}
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void sdl_window_manager::update()
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{
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// Gather SDL events from event queue
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SDL_PumpEvents();
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for (;;)
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{
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// Get next window or display event
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SDL_Event event;
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int status = SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_DISPLAYEVENT, SDL_SYSWMEVENT);
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if (!status)
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{
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break;
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}
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else if (status < 0)
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{
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debug::log::error("Failed to peep SDL events: {}", SDL_GetError());
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throw std::runtime_error("Failed to peep SDL events");
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}
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// Handle event
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if (event.type == SDL_WINDOWEVENT)
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{
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switch (event.window.event)
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{
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case SDL_WINDOWEVENT_SIZE_CHANGED:
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{
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// Get window
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SDL_Window* internal_window = SDL_GetWindowFromID(event.window.windowID);
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app::sdl_window* window = get_window(internal_window);
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// Update window state
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window->size = {event.window.data1, event.window.data2};
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const auto window_flags = SDL_GetWindowFlags(internal_window);
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if (!(window_flags & SDL_WINDOW_MAXIMIZED) && !(window_flags & (SDL_WINDOW_FULLSCREEN | SDL_WINDOW_FULLSCREEN_DESKTOP)))
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{
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window->windowed_size = window->size;
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}
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SDL_GL_GetDrawableSize(internal_window, &window->viewport_size.x(), &window->viewport_size.y());
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window->rasterizer->context_resized(window->viewport_size.x(), window->viewport_size.y());
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// Log window resized event
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debug::log::debug("Window {} resized to {}x{}", event.window.windowID, event.window.data1, event.window.data2);
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// Publish window resized event
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window->resized_publisher.publish({window, window->size});
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break;
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}
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case SDL_WINDOWEVENT_MOVED:
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{
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// Get window
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SDL_Window* internal_window = SDL_GetWindowFromID(event.window.windowID);
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app::sdl_window* window = get_window(internal_window);
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// Update window state
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window->position = {event.window.data1, event.window.data2};
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const auto window_flags = SDL_GetWindowFlags(internal_window);
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if (!(window_flags & SDL_WINDOW_MAXIMIZED) && !(window_flags & (SDL_WINDOW_FULLSCREEN | SDL_WINDOW_FULLSCREEN_DESKTOP)))
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{
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window->windowed_position = window->position;
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}
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// Log window moved event
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debug::log::debug("Window {} moved to ({}, {})", event.window.windowID, event.window.data1, event.window.data2);
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// Publish window moved event
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window->moved_publisher.publish({window, window->position});
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break;
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}
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case SDL_WINDOWEVENT_FOCUS_GAINED:
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{
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// Get window
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SDL_Window* internal_window = SDL_GetWindowFromID(event.window.windowID);
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app::sdl_window* window = get_window(internal_window);
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// Log window focus gained event
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debug::log::debug("Window {} gained focus", event.window.windowID);
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// Publish window focus gained event
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window->focus_changed_publisher.publish({window, true});
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break;
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}
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case SDL_WINDOWEVENT_FOCUS_LOST:
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{
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// Get window
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SDL_Window* internal_window = SDL_GetWindowFromID(event.window.windowID);
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app::sdl_window* window = get_window(internal_window);
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// Log window focus lost event
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debug::log::debug("Window {} lost focus", event.window.windowID);
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// Publish window focus lost event
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window->focus_changed_publisher.publish({window, false});
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break;
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}
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case SDL_WINDOWEVENT_MAXIMIZED:
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{
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// Get window
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SDL_Window* internal_window = SDL_GetWindowFromID(event.window.windowID);
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app::sdl_window* window = get_window(internal_window);
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// Update window state
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window->maximized = true;
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// Log window focus gained event
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debug::log::debug("Window {} maximized", event.window.windowID);
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// Publish window maximized event
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window->maximized_publisher.publish({window});
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break;
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}
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case SDL_WINDOWEVENT_RESTORED:
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{
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// Get window
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SDL_Window* internal_window = SDL_GetWindowFromID(event.window.windowID);
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app::sdl_window* window = get_window(internal_window);
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// Update window state
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window->maximized = false;
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// Log window restored event
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debug::log::debug("Window {} restored", event.window.windowID);
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// Publish window restored event
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window->restored_publisher.publish({window});
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break;
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}
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case SDL_WINDOWEVENT_MINIMIZED:
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{
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// Get window
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SDL_Window* internal_window = SDL_GetWindowFromID(event.window.windowID);
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app::sdl_window* window = get_window(internal_window);
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// Log window focus gained event
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debug::log::debug("Window {} minimized", event.window.windowID);
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// Publish window minimized event
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window->minimized_publisher.publish({window});
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break;
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}
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[[unlikely]] case SDL_WINDOWEVENT_CLOSE:
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{
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// Get window
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SDL_Window* internal_window = SDL_GetWindowFromID(event.window.windowID);
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app::sdl_window* window = get_window(internal_window);
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// Log window closed event
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debug::log::debug("Window {} closed", event.window.windowID);
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// Publish window closed event
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window->closed_publisher.publish({window});
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break;
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}
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default:
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break;
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}
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}
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else if (event.type == SDL_DISPLAYEVENT)
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{
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switch (event.display.event)
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{
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case SDL_DISPLAYEVENT_CONNECTED:
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if (event.display.display < displays.size())
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{
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// Get previously connected display
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display& display = displays[event.display.display];
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// Update display state
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display.connected = true;
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// Log display (re)connected event
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debug::log::info("Reconnected display {}", event.display.display);
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// Publish display (re)connected event
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display.connected_publisher.publish({&display});
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}
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else if (event.display.display == displays.size())
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{
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// Allocate new display
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displays.resize(displays.size() + 1);
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display& display = displays[event.display.display];
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// Update display state
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update_display(event.display.display);
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// Log display info
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const auto display_resolution = display.get_bounds().size();
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debug::log::info("Connected display {}; name: \"{}\"; resolution: {}x{}; refresh rate: {}Hz; DPI: {}", event.display.display, display.get_name(), display_resolution.x(), display_resolution.y(), display.get_refresh_rate(), display.get_dpi());
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// Publish display connected event
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display.connected_publisher.publish({&display});
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}
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else
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{
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debug::log::error("Index of connected display ({}) out of range", event.display.display);
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}
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break;
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case SDL_DISPLAYEVENT_DISCONNECTED:
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if (event.display.display < displays.size())
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{
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// Get display
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display& display = displays[event.display.display];
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// Update display state
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display.connected = false;
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// Log display disconnected event
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debug::log::info("Disconnected display {}", event.display.display);
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// Publish display disconnected event
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display.disconnected_publisher.publish({&display});
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}
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else
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{
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debug::log::error("Index of disconnected display ({}) out of range", event.display.display);
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}
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break;
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case SDL_DISPLAYEVENT_ORIENTATION:
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if (event.display.display < displays.size())
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{
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// Get display
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display& display = displays[event.display.display];
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// Update display state
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switch (event.display.data1)
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{
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case SDL_ORIENTATION_LANDSCAPE:
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display.set_orientation(display_orientation::landscape);
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break;
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case SDL_ORIENTATION_LANDSCAPE_FLIPPED:
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display.set_orientation(display_orientation::landscape_flipped);
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break;
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case SDL_ORIENTATION_PORTRAIT:
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display.set_orientation(display_orientation::portrait);
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break;
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case SDL_ORIENTATION_PORTRAIT_FLIPPED:
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display.set_orientation(display_orientation::portrait_flipped);
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break;
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default:
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display.set_orientation(display_orientation::unknown);
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break;
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}
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// Log display orientation changed event
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debug::log::info("Display {} orientation changed", event.display.display);
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// Publish display orientation changed event
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display.orientation_changed_publisher.publish({&display, display.get_orientation()});
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}
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else
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{
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debug::log::error("Index of orientation-changed display ({}) out of range", event.display.display);
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}
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break;
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default:
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break;
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}
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}
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}
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}
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sdl_window* sdl_window_manager::get_window(SDL_Window* internal_window)
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{
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sdl_window* window = nullptr;
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if (auto i = window_map.find(internal_window); i != window_map.end())
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{
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window = i->second;
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}
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else
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{
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throw std::runtime_error("SDL window unrecognized by SDL window manager");
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}
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return window;
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}
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std::size_t sdl_window_manager::get_display_count() const
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{
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return displays.size();
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}
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const display& sdl_window_manager::get_display(std::size_t index) const
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{
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return displays[index];
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}
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void sdl_window_manager::update_display(int sdl_display_index)
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{
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// Query display mode
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SDL_DisplayMode sdl_display_mode;
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if (SDL_GetDesktopDisplayMode(sdl_display_index, &sdl_display_mode) != 0)
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{
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debug::log::error("Failed to get mode of display {}: {}", sdl_display_index, SDL_GetError());
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SDL_ClearError();
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sdl_display_mode = {0, 0, 0, 0, nullptr};
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}
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// Query display name
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const char* sdl_display_name = SDL_GetDisplayName(sdl_display_index);
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if (!sdl_display_name)
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{
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debug::log::warning("Failed to get name of display {}: {}", sdl_display_index, SDL_GetError());
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SDL_ClearError();
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sdl_display_name = nullptr;
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}
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// Query display bounds
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SDL_Rect sdl_display_bounds;
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if (SDL_GetDisplayBounds(sdl_display_index, &sdl_display_bounds) != 0)
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{
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debug::log::warning("Failed to get bounds of display {}: {}", sdl_display_index, SDL_GetError());
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SDL_ClearError();
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sdl_display_bounds = {0, 0, sdl_display_mode.w, sdl_display_mode.h};
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}
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// Query display usable bounds
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SDL_Rect sdl_display_usable_bounds;
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if (SDL_GetDisplayUsableBounds(sdl_display_index, &sdl_display_usable_bounds) != 0)
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{
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debug::log::warning("Failed to get usable bounds of display {}: {}", sdl_display_index, SDL_GetError());
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SDL_ClearError();
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sdl_display_usable_bounds = sdl_display_bounds;
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}
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// Query display DPI
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float sdl_display_dpi;
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if (SDL_GetDisplayDPI(sdl_display_index, &sdl_display_dpi, nullptr, nullptr) != 0)
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{
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debug::log::warning("Failed to get DPI of display {}: {}", sdl_display_index, SDL_GetError());
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SDL_ClearError();
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sdl_display_dpi = 0.0f;
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}
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// Query display orientation
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SDL_DisplayOrientation sdl_display_orientation = SDL_GetDisplayOrientation(sdl_display_index);
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// Update display properties
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display& display = displays[sdl_display_index];
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display.set_index(static_cast<std::size_t>(sdl_display_index));
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display.set_name(sdl_display_name ? sdl_display_name : std::string());
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display.set_bounds({{sdl_display_bounds.x, sdl_display_bounds.y}, {sdl_display_bounds.x + sdl_display_bounds.w, sdl_display_bounds.y + sdl_display_bounds.h}});
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display.set_usable_bounds({{sdl_display_usable_bounds.x, sdl_display_usable_bounds.y}, {sdl_display_usable_bounds.x + sdl_display_usable_bounds.w, sdl_display_usable_bounds.y + sdl_display_usable_bounds.h}});
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display.set_refresh_rate(sdl_display_mode.refresh_rate);
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display.set_dpi(sdl_display_dpi);
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switch (sdl_display_orientation)
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{
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case SDL_ORIENTATION_LANDSCAPE:
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display.set_orientation(display_orientation::landscape);
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break;
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case SDL_ORIENTATION_LANDSCAPE_FLIPPED:
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display.set_orientation(display_orientation::landscape_flipped);
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break;
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case SDL_ORIENTATION_PORTRAIT:
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display.set_orientation(display_orientation::portrait);
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break;
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case SDL_ORIENTATION_PORTRAIT_FLIPPED:
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display.set_orientation(display_orientation::portrait_flipped);
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break;
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default:
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display.set_orientation(display_orientation::unknown);
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break;
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}
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display.connected = true;
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}
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} // namespace app
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