Function main

engine/3rdparty/imgui/examples/example_emscripten_wgpu/main.cpp:35–105

static void print_wgpu_error(WGPUErrorType error_type, const char* message, void*);

int main(int, char**)
{
    glfwSetErrorCallback(print_glfw_error);
    if (!glfwInit())
        return 1;

    // Make sure GLFW does not initialize any graphics context.
    // This needs to be done explicitly later
    glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);

    GLFWwindow* window = glfwCreateWindow(1280, 720, "Dear ImGui GLFW+WebGPU example", NULL, NULL);
    if (!window)
    {
        glfwTerminate();
        return 1;
    }

    // Initialize the WebGPU environment
    if (!init_wgpu())
    {
        if (window)
            glfwDestroyWindow(window);
        glfwTerminate();
        return 1;
    }
    glfwShowWindow(window);

    // 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

    // For an Emscripten build we are disabling file-system access, so let's not attempt to do a fopen() of the imgui.ini file.
    // You may manually call LoadIniSettingsFromMemory() to load settings from your own storage.
    io.IniFilename = NULL;

    // Setup Dear ImGui style
    ImGui::StyleColorsDark();
    //ImGui::StyleColorsClassic();

    // Setup Platform/Renderer backends
    ImGui_ImplGlfw_InitForOther(window, true);
    ImGui_ImplWGPU_Init(wgpu_device, 3, WGPUTextureFormat_RGBA8Unorm);

    // Load Fonts
    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
    // - If the file cannot be loaded, the function will return NULL. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
    // - Read 'docs/FONTS.md' for more instructions and details.
    // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
    // - Emscripten allows preloading a file or folder to be accessible at runtime. See Makefile for details.
    //io.Fonts->AddFontDefault();
#ifndef IMGUI_DISABLE_FILE_FUNCTIONS
    io.Fonts->AddFontFromFileTTF("fonts/Roboto-Medium.ttf", 16.0f);
    //io.Fonts->AddFontFromFileTTF("fonts/Cousine-Regular.ttf", 15.0f);