💿🐜 Antkeeper source code
https://antkeeper.com
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296 lines
8.6 KiB
296 lines
8.6 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.hpp>
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#include <engine/config.hpp>
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#include <engine/debug/log.hpp>
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#include <glad/glad.h>
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#include <stdexcept>
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namespace app {
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sdl_window::sdl_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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// Determine SDL window creation flags
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Uint32 window_flags = SDL_WINDOW_ALLOW_HIGHDPI | SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE;
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if (maximized)
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{
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window_flags |= SDL_WINDOW_MAXIMIZED;
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}
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if (fullscreen)
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{
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window_flags |= SDL_WINDOW_FULLSCREEN_DESKTOP;
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}
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// Create SDL window
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debug::log::trace("Creating SDL window...");
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internal_window = SDL_CreateWindow
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(
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title.c_str(),
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windowed_position.x(),
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windowed_position.y(),
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windowed_size.x(),
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windowed_size.y(),
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window_flags
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);
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if (!internal_window)
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{
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debug::log::fatal("Failed to create SDL window: {}", SDL_GetError());
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throw std::runtime_error("Failed to create SDL window");
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}
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debug::log::trace("Created SDL window");
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// Create OpenGL context
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debug::log::trace("Creating OpenGL context...");
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internal_context = SDL_GL_CreateContext(internal_window);
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if (!internal_context)
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{
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debug::log::fatal("Failed to create OpenGL context: {}", SDL_GetError());
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throw std::runtime_error("Failed to create OpenGL context");
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}
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debug::log::trace("Created OpenGL context");
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// Query OpenGL context info
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int opengl_context_version_major = -1;
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int opengl_context_version_minor = -1;
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int opengl_context_red_size = -1;
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int opengl_context_green_size = -1;
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int opengl_context_blue_size = -1;
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int opengl_context_alpha_size = -1;
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int opengl_context_depth_size = -1;
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int opengl_context_stencil_size = -1;
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SDL_GL_GetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, &opengl_context_version_major);
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SDL_GL_GetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, &opengl_context_version_minor);
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SDL_GL_GetAttribute(SDL_GL_RED_SIZE, &opengl_context_red_size);
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SDL_GL_GetAttribute(SDL_GL_GREEN_SIZE, &opengl_context_green_size);
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SDL_GL_GetAttribute(SDL_GL_BLUE_SIZE, &opengl_context_blue_size);
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SDL_GL_GetAttribute(SDL_GL_ALPHA_SIZE, &opengl_context_alpha_size);
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SDL_GL_GetAttribute(SDL_GL_DEPTH_SIZE, &opengl_context_depth_size);
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SDL_GL_GetAttribute(SDL_GL_STENCIL_SIZE, &opengl_context_stencil_size);
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// Log OpenGL context info
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debug::log::info
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(
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"OpenGL context version: {}.{}; format: R{}G{}B{}A{}D{}S{}",
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opengl_context_version_major,
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opengl_context_version_minor,
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opengl_context_red_size,
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opengl_context_green_size,
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opengl_context_blue_size,
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opengl_context_alpha_size,
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opengl_context_depth_size,
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opengl_context_stencil_size
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);
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// Compare OpenGL context version with requested version
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if (opengl_context_version_major != config::opengl_version_major ||
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opengl_context_version_minor != config::opengl_version_minor)
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{
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debug::log::warning("Requested OpenGL context version {}.{} but got version {}.{}", config::opengl_version_major, config::opengl_version_minor, opengl_context_version_major, opengl_context_version_minor);
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}
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// Compare OpenGL context format with requested format
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if (opengl_context_red_size < config::opengl_min_red_size ||
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opengl_context_green_size < config::opengl_min_green_size ||
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opengl_context_blue_size < config::opengl_min_blue_size ||
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opengl_context_alpha_size < config::opengl_min_alpha_size ||
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opengl_context_depth_size < config::opengl_min_depth_size ||
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opengl_context_stencil_size < config::opengl_min_stencil_size)
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{
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debug::log::warning
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(
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"OpenGL context format (R{}G{}B{}A{}D{}S{}) does not meet minimum requested format (R{}G{}B{}A{}D{}S{})",
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opengl_context_red_size,
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opengl_context_green_size,
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opengl_context_blue_size,
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opengl_context_alpha_size,
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opengl_context_depth_size,
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opengl_context_stencil_size,
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config::opengl_min_red_size,
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config::opengl_min_green_size,
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config::opengl_min_blue_size,
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config::opengl_min_alpha_size,
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config::opengl_min_depth_size,
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config::opengl_min_stencil_size
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);
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}
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// Load OpenGL functions via GLAD
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debug::log::trace("Loading OpenGL functions...");
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if (!gladLoadGLLoader((GLADloadproc)SDL_GL_GetProcAddress))
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{
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debug::log::fatal("Failed to load OpenGL functions", SDL_GetError());
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throw std::runtime_error("Failed to load OpenGL functions");
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}
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debug::log::trace("Loaded OpenGL functions");
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// Log OpenGL information
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debug::log::info
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(
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"OpenGL vendor: {}; renderer: {}; version: {}; shading language version: {}",
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reinterpret_cast<const char*>(glGetString(GL_VENDOR)),
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reinterpret_cast<const char*>(glGetString(GL_RENDERER)),
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reinterpret_cast<const char*>(glGetString(GL_VERSION)),
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reinterpret_cast<const char*>(glGetString(GL_SHADING_LANGUAGE_VERSION))
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);
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// Fill window with color
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//glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
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glClear(GL_COLOR_BUFFER_BIT);
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swap_buffers();
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// Enable or disable v-sync
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set_v_sync(v_sync);
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// Update window state
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this->title = title;
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this->windowed_position = windowed_position;
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this->windowed_size = windowed_size;
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this->maximized = maximized;
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this->fullscreen = fullscreen;
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SDL_GetWindowPosition(internal_window, &this->position.x(), &this->position.y());
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SDL_GetWindowSize(internal_window, &this->size.x(), &this->size.y());
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SDL_GetWindowMinimumSize(internal_window, &this->minimum_size.x(), &this->minimum_size.y());
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SDL_GetWindowMaximumSize(internal_window, &this->maximum_size.x(), &this->maximum_size.y());
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SDL_GL_GetDrawableSize(internal_window, &this->viewport_size.x(), &this->viewport_size.y());
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// Allocate rasterizer
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this->rasterizer = new gl::rasterizer();
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}
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sdl_window::~sdl_window()
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{
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// Destruct rasterizer
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delete rasterizer;
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// Destruct the OpenGL context
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SDL_GL_DeleteContext(internal_context);
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// Destruct the SDL window
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SDL_DestroyWindow(internal_window);
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}
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void sdl_window::set_title(const std::string& title)
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{
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SDL_SetWindowTitle(internal_window, title.c_str());
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this->title = title;
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}
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void sdl_window::set_position(const math::vector<int, 2>& position)
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{
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SDL_SetWindowPosition(internal_window, position.x(), position.y());
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}
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void sdl_window::set_size(const math::vector<int, 2>& size)
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{
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SDL_SetWindowSize(internal_window, size.x(), size.y());
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}
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void sdl_window::set_minimum_size(const math::vector<int, 2>& size)
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{
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SDL_SetWindowMinimumSize(internal_window, size.x(), size.y());
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this->minimum_size = size;
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}
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void sdl_window::set_maximum_size(const math::vector<int, 2>& size)
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{
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SDL_SetWindowMaximumSize(internal_window, size.x(), size.y());
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this->maximum_size = size;
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}
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void sdl_window::set_maximized(bool maximized)
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{
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if (maximized)
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{
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SDL_MaximizeWindow(internal_window);
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}
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else
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{
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SDL_RestoreWindow(internal_window);
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}
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}
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void sdl_window::set_fullscreen(bool fullscreen)
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{
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//SDL_HideWindow(internal_window);
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SDL_SetWindowFullscreen(internal_window, (fullscreen) ? SDL_WINDOW_FULLSCREEN_DESKTOP : 0);
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//SDL_ShowWindow(internal_window);
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this->fullscreen = fullscreen;
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}
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void sdl_window::set_v_sync(bool v_sync)
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{
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if (v_sync)
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{
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debug::log::trace("Enabling adaptive v-sync...");
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if (SDL_GL_SetSwapInterval(-1) != 0)
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{
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debug::log::error("Failed to enable adaptive v-sync: {}", SDL_GetError());
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debug::log::trace("Enabling synchronized v-sync...");
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if (SDL_GL_SetSwapInterval(1) != 0)
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{
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debug::log::error("Failed to enable synchronized v-sync: {}", SDL_GetError());
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v_sync = false;
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}
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else
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{
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debug::log::debug("Enabled synchronized v-sync");
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}
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}
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else
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{
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debug::log::debug("Enabled adaptive v-sync");
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}
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}
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else
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{
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debug::log::trace("Disabling v-sync...");
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if (SDL_GL_SetSwapInterval(0) != 0)
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{
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debug::log::error("Failed to disable v-sync: {}", SDL_GetError());
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v_sync = true;
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}
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else
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{
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debug::log::debug("Disabled v-sync");
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}
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}
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this->v_sync = v_sync;
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}
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void sdl_window::make_current()
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{
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SDL_GL_MakeCurrent(internal_window, internal_context);
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}
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void sdl_window::swap_buffers()
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{
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SDL_GL_SwapWindow(internal_window);
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}
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} // namespace app
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