OpenGL 应用程序控制台未关闭

Question

我正在使用 Visual Studio 社区，我正在尝试创建 OpenGL 应用程序。我正在使用 GLFW 打开这样的 window：

int main() {
    //Init stuff
    int width = 1920;


    int height = 1080;
    glfwInit();
    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
    GLFWwindow* window = glfwCreateWindow(width, height, "LearnOpenGL", NULL, NULL);
    if (window == NULL) {
        std::cout << "Failed to create Window du schmok" << std::endl;

        glfwTerminate();
        return -1;
    }
    glfwMakeContextCurrent(window);
    if (glewInit() != GLEW_OK) {
        std::cout << "Glew was not initialized du schmok" << std::endl;
    }
    glViewport(0, 0, width, height);

    VertexBuffer vbo(vertices, sizeof(vertices));
    IndexBuffer ibo(indices, 6);

    while (!glfwWindowShouldClose(window))
    {
        glClearColor(0.0f, 0.3f, 1.0f, 1.0f);
        glClear(GL_COLOR_BUFFER_BIT);

        glfwSwapBuffers(window);
        glfwPollEvents();
    }

    glfwDestroyWindow(window);
    glfwTerminate();
    return 0;
}

我已经将索引缓冲区和顶点缓冲区抽象为类，如下所示：顶点缓冲区：

VertexBuffer::VertexBuffer(float data[], unsigned int size)
{
    GL_CALL(glGenBuffers(1, &m_ID));
    GL_CALL(glBindBuffer(GL_ARRAY_BUFFER, m_ID));
    GL_CALL(glBufferData(GL_ARRAY_BUFFER, size, data, GL_STATIC_DRAW));
}

VertexBuffer::~VertexBuffer()
{
    GL_CALL(glDeleteBuffers(1, &m_ID));
}

void VertexBuffer::Bind()
{
    GL_CALL(glBindBuffer(GL_ARRAY_BUFFER, m_ID));
}

void VertexBuffer::Unbind()
{
    GL_CALL(glBindBuffer(GL_ARRAY_BUFFER, 0));
}

和索引缓冲区：

IndexBuffer::IndexBuffer(unsigned int indices[], unsigned int count)
{
    m_Count = count;
    GL_CALL(glGenBuffers(1, &m_ID));
    GL_CALL(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_ID));
    GL_CALL(glBufferData(GL_ELEMENT_ARRAY_BUFFER, m_Count * sizeof(unsigned int), indices, GL_STATIC_DRAW));
}

IndexBuffer::~IndexBuffer()
{
    GL_CALL(glDeleteBuffers(1, &m_ID));
}

void IndexBuffer::Bind()
{
    GL_CALL(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_ID));
}

void IndexBuffer::Unbind()
{
    GL_CALL(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0));
}

问题是关闭 window 后，控制台保持打开状态并闪烁等待。我只能用 Visual Studio 或手动关闭控制台来终止程序。我已经对代码进行了试验，这是因为我为缓冲区创建对象的两行：没有这两行它就可以工作。有谁知道这是为什么？

Answer 1

正如评论中提到的，问题来自于你的缓冲区的破坏：程序试图在 OpenGL 上下文被破坏后调用 glDestroyX（在缓冲区析构函数中），这会抛出 GL_Call 尝试使用 GL 上下文进行处理，因此它本身也会抛出错误等等。

要解决这个问题，请在作用域内声明和使用缓冲区，并在作用域结束后销毁 GL 上下文，这样您的 GL 对象就会在之前销毁GL上下文被破坏。

OpenGL 应用程序控制台未关闭

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