blocky/playground/main.cc
2022-06-22 11:48:52 +09:00

103 lines
2.5 KiB
C++

#include <iostream>
#include <GL/glew.h>
#include <imgui.h>
#include <imgui_impl_glfw.h>
#include <imgui_impl_opengl3.h>
#include <implot.h>
// To prevent conflicts caused by fucking windows.h, include GLFW last.
#include <GLFW/glfw3.h>
#include "initiator.hh"
#include "input.hh"
#if defined(_MSC_VER) && (_MSC_VER >= 1900) && !defined(IMGUI_DISABLE_WIN32_FUNCTIONS)
# pragma comment(lib, "legacy_stdio_definitions")
#endif
int main(int, char**) {
// init display
glfwSetErrorCallback(
[](int, const char* msg) {
std::cout << "GLFW error: " << msg << std::endl;
});
if (!glfwInit()) return 1;
GLFWwindow* window;
const char* glsl_version;
glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE);
# if defined(__APPLE__)
glsl_version = "#version 150";
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
# else
glsl_version = "#version 130";
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
# endif
window = glfwCreateWindow(1280, 720, "playground", NULL, NULL);
if (window == NULL) return 1;
glfwMakeContextCurrent(window);
glfwSwapInterval(1);
if (glewInit() != GLEW_OK) return 1;
// init ImGUI
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImPlot::CreateContext();
auto& io = ImGui::GetIO();
io.IniFilename = nullptr;
io.ConfigFlags |= ImGuiConfigFlags_DockingEnable;
ImGui::StyleColorsDark();
ImGui_ImplGlfw_InitForOpenGL(window, true);
ImGui_ImplOpenGL3_Init(glsl_version);
pg::Initiator initiator;
glfwShowWindow(window);
// main loop
while (!glfwWindowShouldClose(window)) {
// new frame
glfwPollEvents();
ImGui_ImplOpenGL3_NewFrame();
ImGui_ImplGlfw_NewFrame();
ImGui::NewFrame();
// update GUI state
initiator.Update();
pg::Input::instance().Update();
// render windows
ImGui::Render();
int w, h;
glfwGetFramebufferSize(window, &w, &h);
glViewport(0, 0, w, h);
glClear(GL_COLOR_BUFFER_BIT);
ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
glfwSwapBuffers(window);
}
// teardown ImGUI
ImGui_ImplOpenGL3_Shutdown();
ImGui_ImplGlfw_Shutdown();
ImPlot::DestroyContext();
ImGui::DestroyContext();
// teardown display
glfwDestroyWindow(window);
glfwTerminate();
return 0;
}