148 lines
3.6 KiB
C++
148 lines
3.6 KiB
C++
#include "window.hpp"
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#include "spdlog/spdlog.h"
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#include "gl.h"
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using namespace core;
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Window::Window(std::string title, int width, int height)
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{
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this->width = width;
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this->height = height;
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setupGLFW(title);
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setupImGui();
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}
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Window::~Window()
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{
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shutdownImGui();
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shutdownGLFW();
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}
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void Window::setTitle(std::string title)
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{
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glfwSetWindowTitle(window, title.c_str());
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}
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void Window::setSize(int w, int h)
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{
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width = w;
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height = h;
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glfwSetWindowSize(window, width, height);
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}
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void Window::setPos(int x, int y)
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{
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glfwSetWindowPos(window, x, y);
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}
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void Window::getSize(int& w, int& h)
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{
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w = width;
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h = height;
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}
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void Window::getPos(int& x, int& y)
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{
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glfwGetWindowPos(window, &x, &y);
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}
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bool Window::newFrame()
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{
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glfwPollEvents();
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if (glfwWindowShouldClose(window)) { return true; }
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glfwGetWindowSize(window, &width, &height);
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glClearColor(1.0, 0.0, 0.0, 1.0);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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ImGui_ImplOpenGL3_NewFrame();
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ImGui_ImplGlfw_NewFrame();
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ImGui::NewFrame();
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// removed this for now, draws semitransparent over opengl
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// ImGui::Begin("Main", NULL, WINDOW_FLAGS);
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// ImGui::SetWindowPos(ImVec2(0, 0));
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// ImGui::SetWindowSize(ImVec2(width, height));
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return false;
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}
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void Window::render()
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{
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// ImGui::End();
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ImGui::Render();
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auto io = ImGui::GetIO();
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glViewport(0, 0, (int)io.DisplaySize.x, (int)io.DisplaySize.y);
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ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
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glfwSwapBuffers(window);
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}
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void Window::setupGLFW(std::string title)
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{
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glfwSetErrorCallback(glfwErrorCallback);
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if (!glfwInit()) throw std::runtime_error("Failed to initialize GLFW");
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// Decide GL+GLSL versions
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#if defined(IMGUI_IMPL_OPENGL_ES2)
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// GL ES 2.0 + GLSL 100
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glslVersion = "#version 100";
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
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glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
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#elif defined(__APPLE__)
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// GL 3.2 + GLSL 150
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glslVersion = "#version 150";
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
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glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); // 3.2+ only
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glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // Required on Mac
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#else
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// GL 3.0 + GLSL 130
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glslVersion = "#version 130";
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
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//glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); // 3.2+ only
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//glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // 3.0+ only
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#endif
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// Create window with graphics context
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window = glfwCreateWindow(1280, 720, title.c_str(), NULL, NULL);
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if (window == NULL) throw std::runtime_error("Could not create window");
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glfwMakeContextCurrent(window);
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gladLoadGLLoader((GLADloadproc)glfwGetProcAddress);
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glfwSwapInterval(1); // Enable vsync
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}
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void Window::setupImGui()
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{
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// Setup Dear ImGui context
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IMGUI_CHECKVERSION();
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ImGui::CreateContext();
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// Setup Dear ImGui style
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ImGui::StyleColorsDark();
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// Setup Platform/Renderer backends
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ImGui_ImplGlfw_InitForOpenGL(window, true);
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ImGui_ImplOpenGL3_Init(glslVersion);
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}
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void Window::shutdownImGui()
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{
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ImGui_ImplOpenGL3_Shutdown();
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ImGui_ImplGlfw_Shutdown();
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ImGui::DestroyContext();
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}
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void Window::shutdownGLFW()
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{
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glfwDestroyWindow(window);
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glfwTerminate();
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}
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void Window::glfwErrorCallback(int error, const char* description) {
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spdlog::error("[GLFW {0}] {1}", error, description);
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}
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