android – 如何使用纯c代码强制NDK使用横向模式

一般来说,它工作正常.但如果我锁定屏幕,并等待APP_CMD_LOST_FOCUS发生,然后我解锁srceen.它变成了肖像！但我发现egl buff仍然是风景设置,并且所有坐标都更大.

我的@L_924_0@manifest.xml设置：

<activity android:name="android.app.NativeActivity"
        android:theme="@android:style/Theme.NotitleBar.Fullscreen"
        android:configChanges="orientation|keyboardHidden"
        android:screenOrientation="landscape"
        android:clearTaskOnLaunch="true">
    <Meta-data android:name="android.app.lib_name"
            android:value="sunred" />

    <intent-filter>
          <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>

</activity>

我的egl init c代码

int ENGIne_init_display(OSCOntexTENGINE* pENGIne,const DISPLAY_CONfig* pConfig)
{
    // initialize OpenGL ES and EGL
    /*
     * Here specify the attributes of the desired configuration.
     * Below,we SELEct an EGLConfig with at least 8 bits per color
     * component compatible with on-screen windows
     */
    const EGL@R_489_8237@ttribs[] =
    { EGL_SURFACE_TYPE,EGL_WINDOW_BIT,EGL_RENDERABLE_TYPE,EGL_OPENGL_ES2_BIT,EGL_BLUE_SIZE,8,EGL_GREEN_SIZE,EGL_RED_SIZE,EGL_DEPTH_SIZE,EGL_NONE };
    EGLint w,h,dummy,format;
    EGLint numConfigs;
    EGLConfig config;
    EGLSurface surface;
    EGLContext context;

    EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);

    eglInitialize(display,0);

    //eglBindAPI(EGL_OPENGL_ES_API);
    /* Here,the application chooses the configuration it desires. In this
     * sample,we have a very simplified SELEction process,where we pick
     * the first EGLConfig that matches our criteria */
    EGLBoolean bres = eglChooseConfig(display,attribs,&config,1,&numConfigs);

    if (!bres)
    {
        __android_log_print(LOGINFO_ERROR,"ENGIne_init_display","numConfigs = %d",numConfigs);
    }

    /* EGL_NATIVE_VISUAL_ID is an attribute of the EGLConfig that is
     * guaranteed to be accepted by ANativeWindow_setBuffersGeometry().
     * As soon as we picked a EGLConfig,we can safely reconfigure the
     * ANativeWindow buffers to match,using EGL_NATIVE_VISUAL_ID. */
    eglGetConfigAttrib(display,config,EGL_NATIVE_VISUAL_ID,&format);

    ANativeWindow_setBuffersGeometry(pENGIne->m_app->window,format);

    surface = eglCreateWindowSurface(display,pENGIne->m_app->window,null);
    const EGL@R_489_8237@i32ContextAttribs[] =
    { EGL_COntexT_CLIENT_VERSION,2,EGL_NONE };

    context = eglCreateContext(display,NULL,ai32ContextAttribs);

    if (eglMakeCurrent(display,surface,context) == EGL_falSE)
    {
        LOGW("Unable to eglMakeCurrent");
        return P_ERR;
    }

    eglQuerySurface(display,EGL_WIDTH,&w);
    eglQuerySurface(display,EGL_HEIGHT,&h);

    pENGIne->m_EglDisplay = display;
    pENGIne->m_EglContext = context;
    pENGIne->m_EglSurface = surface;
    pENGIne->m_iWidth = w;
    pENGIne->m_iHeight = h;

    return 0;
}

当APP_CMD_INIT_WINDOW发生时,我调用ENGIne_init_display.

有什么方法可以使用c强制将其设置为横向模式？

渲染帧：

工作正常：

pENGIne->m_iWidth = 960;
pENGIne->m_iHeight = 540;

lock screeen – > APP_CMD_LOST_FOCUS – >解锁屏幕

pENGIne->m_iWidth = 540;
pENGIne->m_iHeight = 960;

窗户变成了肖像！
但是egl buff仍然是风景设置,并且所有坐标都更大.

case APP_CMD_CONfig_CHANGED:
        if (ENGIne->app->window != NULL && ((ENGIne->width != ANativeWindow_getWidth(app->window)) || (ENGIne->height != ANativeWindow_getHeight(app->window)))) {
            ENGIne_handle_cmd(app,APP_CMD_TERM_WINDOW);
            ENGIne_handle_cmd(app,APP_CMD_INIT_WINDOW);
        }
        break;