灵码每次回复代码都不完整，总要遗留部分代码。

// GLFW 回调函数
void framebuffer_size_callback(GLFWwindow* window, int width, int height) {
glViewport(0, 0, width, height);
checkOpenGLError("glViewport");
std::cout << "窗口大小调整为: " << width << "x" << height << std::endl;
}

void processInput(GLFWwindow* window) {
if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS) {
glfwSetWindowShouldClose(window, true);
std::cout << "检测到 ESC 键，关闭窗口" << std::endl;
}
}

// 数据处理线程
void dataProcessingThread() {
std::vector allDemData;
int totalWidth = 0, totalHeight = 0;

while (true) {
    std::unique_lock<std::mutex> lock(mtx);
    cv.wait(lock, [] { return !demQueue.empty() || done; });

    if (done && demQueue.empty()) {
        std::cout << "数据处理线程完成" << std::endl;
        break;
    }

    auto [entryName, data] = std::move(demQueue.front());
    demQueue.pop();
    lock.unlock();

    std::vector<float> demData;
    int width, height;
    try {
        readDEMFromMemory(entryName, data, demData, width, height);
        std::cout