生成QT下访问EGL的Surace的代码

以下是在QT中访问EGL Surface的示例代码：

#include <QGuiApplication>
#include <QWindow>
#include <QDebug>
#include <EGL/egl.h>
#include <GLES2/gl2.h>

int main(int argc, char **argv)
{
    QGuiApplication app(argc, argv);

    // Create a window
    QWindow window;
    window.resize(640, 480);
    window.setTitle("EGL Window");
    window.show();

    // Get the native window handle
    EGLNativeWindowType nativeWindow = (EGLNativeWindowType)window.winId();

    // Initialize EGL
    EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
    EGLint major, minor;
    eglInitialize(display, &major, &minor);

    // Choose an appropriate EGL configuration
    EGLConfig config;
    EGLint numConfigs;
    EGLint configAttribs[] = {
        EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
        EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
        EGL_NONE
    };
    eglChooseConfig(display, configAttribs, &config, 1, &numConfigs);

    // Create a surface
    EGLSurface surface = eglCreateWindowSurface(display, config, nativeWindow, NULL);

    // Make the surface current
    eglMakeCurrent(display, surface, surface, eglCreateContext(display, config, EGL_NO_CONTEXT, NULL));

    // Clear the screen to black
    glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
    glClear(GL_COLOR_BUFFER_BIT);
    eglSwapBuffers(display, surface);

    // Clean up
    eglDestroySurface(display, surface);
    eglTerminate(display);

    return app.exec();
}

这段代码创建了一个QT窗口，并使用EGL在窗口上绘制了一个黑色背景。你可以根据自己的需要修改它。