// Dear ImGui: standalone example application for GLFW + OpenGL 3, using programmable pipeline // (GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan/Metal graphics context creation, etc.) // If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp. // Read online: https://github.com/ocornut/imgui/tree/master/docs #include "imgui.h" #include "imgui_impl_glfw.h" #include "imgui_impl_opengl3.h" #include #include #include #include #include "../overlay.h" // About Desktop OpenGL function loaders: // Modern desktop OpenGL doesn't have a standard portable header file to load OpenGL function pointers. // Helper libraries are often used for this purpose! Here we are supporting a few common ones (gl3w, glew, glad). // You may use another loader/header of your choice (glext, glLoadGen, etc.), or chose to manually implement your own. #if defined(IMGUI_IMPL_OPENGL_LOADER_GL3W) #include "GL/gl3w.h" // Initialize with gl3wInit() #elif defined(IMGUI_IMPL_OPENGL_LOADER_GLEW) #include // Initialize with glewInit() #elif defined(IMGUI_IMPL_OPENGL_LOADER_GLAD) #include // Initialize with gladLoadGL() #elif defined(IMGUI_IMPL_OPENGL_LOADER_GLAD2) #include // Initialize with gladLoadGL(...) or gladLoaderLoadGL() #elif defined(IMGUI_IMPL_OPENGL_LOADER_GLBINDING2) #define GLFW_INCLUDE_NONE // GLFW including OpenGL headers causes ambiguity or multiple definition errors. #include // Initialize with glbinding::Binding::initialize() #include using namespace gl; #elif defined(IMGUI_IMPL_OPENGL_LOADER_GLBINDING3) #define GLFW_INCLUDE_NONE // GLFW including OpenGL headers causes ambiguity or multiple definition errors. #include // Initialize with glbinding::initialize() #include using namespace gl; #else #include IMGUI_IMPL_OPENGL_LOADER_CUSTOM #endif // Include glfw3.h after our OpenGL definitions #include #define GLFW_EXPOSE_NATIVE_X11 #include #include // [Win32] Our example includes a copy of glfw3.lib pre-compiled with VS2010 to maximize ease of testing and compatibility with old VS compilers. // To link with VS2010-era libraries, VS2015+ requires linking with legacy_stdio_definitions.lib, which we do using this pragma. // Your own project should not be affected, as you are likely to link with a newer binary of GLFW that is adequate for your version of Visual Studio. #if defined(_MSC_VER) && (_MSC_VER >= 1900) && !defined(IMGUI_DISABLE_WIN32_FUNCTIONS) #pragma comment(lib, "legacy_stdio_definitions") #endif static void glfw_error_callback(int error, const char* description) { fprintf(stderr, "Glfw Error %d: %s\n", error, description); } swapchain_stats sw_stats {}; overlay_params params {}; static ImVec2 window_size; static uint32_t vendorID; static std::string deviceName; int fd; char str1[80]; char *shm_str; void read_thread(){ while (1){ if (strcmp("read", shm_str)) { sprintf(shm_str, "%s", "read"); update_hud_info(sw_stats, params, vendorID); } else { sleep(0.0001); } } } static const char *SteamOverlayProperty = "STEAM_OVERLAY"; int main(int, char**) { // Setup window glfwSetErrorCallback(glfw_error_callback); if (!glfwInit()) return 1; const char* glsl_version = "#version 130"; glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3); glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0); glfwWindowHint(GLFW_RESIZABLE, 1); glfwWindowHint(GLFW_TRANSPARENT_FRAMEBUFFER, 1); // Create window with graphics context GLFWwindow* window = glfwCreateWindow(1280, 720, "Dear ImGui GLFW+OpenGL3 example", NULL, NULL); if (window == NULL) return 1; Display *x11_display = glfwGetX11Display(); Window x11_window = glfwGetX11Window(window); if (x11_window && x11_display) { // Set atom for gamescope to render as an overlay. Atom overlay_atom = XInternAtom (x11_display, SteamOverlayProperty, False); uint32_t value = 1; XChangeProperty(x11_display, x11_window, overlay_atom, XA_ATOM, 32, PropertyNewValue, (unsigned char *)&value, 1); } glfwMakeContextCurrent(window); glfwSwapInterval(1); // Enable vsync // Initialize OpenGL loader #if defined(IMGUI_IMPL_OPENGL_LOADER_GL3W) bool err = gl3wInit() != 0; #elif defined(IMGUI_IMPL_OPENGL_LOADER_GLEW) bool err = glewInit() != GLEW_OK; #elif defined(IMGUI_IMPL_OPENGL_LOADER_GLAD) bool err = gladLoadGL() == 0; #elif defined(IMGUI_IMPL_OPENGL_LOADER_GLAD2) bool err = gladLoadGL(glfwGetProcAddress) == 0; // glad2 recommend using the windowing library loader instead of the (optionally) bundled one. #elif defined(IMGUI_IMPL_OPENGL_LOADER_GLBINDING2) bool err = false; glbinding::Binding::initialize(); #elif defined(IMGUI_IMPL_OPENGL_LOADER_GLBINDING3) bool err = false; glbinding::initialize([](const char* name) { return (glbinding::ProcAddress)glfwGetProcAddress(name); }); #else bool err = false; // If you use IMGUI_IMPL_OPENGL_LOADER_CUSTOM, your loader is likely to requires some form of initialization. #endif if (err) { fprintf(stderr, "Failed to initialize OpenGL loader!\n"); return 1; } // Setup Dear ImGui context IMGUI_CHECKVERSION(); ImGui::CreateContext(); ImGuiIO& io = ImGui::GetIO(); (void)io; //io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls //io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad; // Enable Gamepad Controls // Setup Dear ImGui style ImGui::StyleColorsDark(); //ImGui::StyleColorsClassic(); // Setup Platform/Renderer backends ImGui_ImplGlfw_InitForOpenGL(window, true); ImGui_ImplOpenGL3_Init(glsl_version); parse_overlay_config(¶ms, getenv("MANGOHUD_CONFIG")); create_fonts(params, sw_stats.font1, sw_stats.font_text); HUDElements.convert_colors(params); init_cpu_stats(params); deviceName = (char*)glGetString(GL_RENDERER); sw_stats.deviceName = deviceName; if (deviceName.find("Radeon") != std::string::npos || deviceName.find("AMD") != std::string::npos){ vendorID = 0x1002; } else { vendorID = 0x10de; } init_gpu_stats(vendorID, params); init_system_info(); // Our state key_t key = ftok("mangoapp",65); int shmid = shmget(key,1024,0666|IPC_CREAT); shm_str = (char*) shmat(shmid,(void*)0,0); std::thread(read_thread).detach(); // Main loop while (!glfwWindowShouldClose(window)) { // 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. glfwPollEvents(); // Start the Dear ImGui frame ImGui_ImplOpenGL3_NewFrame(); ImGui_ImplGlfw_NewFrame(); ImGui::NewFrame(); { check_keybinds(sw_stats, params, vendorID); position_layer(sw_stats, params, window_size); render_imgui(sw_stats, params, window_size, true); } ImGui::PopStyleVar(3); // Rendering ImGui::Render(); int display_w, display_h; glfwGetFramebufferSize(window, &display_w, &display_h); glEnable(GL_DEPTH_TEST); glEnable(GL_BLEND); glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); glClearColor(0, 0, 0, 0); glClear(GL_COLOR_BUFFER_BIT); ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData()); glfwSwapBuffers(window); } // Cleanup ImGui_ImplOpenGL3_Shutdown(); ImGui_ImplGlfw_Shutdown(); ImGui::DestroyContext(); glfwDestroyWindow(window); glfwTerminate(); return 0; }