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Android Native NDK OpenGL ES: Unrealized API

I am working on implementing OpenGL ES 2.0 completely in C ++ for Android.

At present, our program works without JNI or any java class in the project; instead, only NativeActivity is used.

By focusing on the very part of rendering the application, we got a simple way:

renderWorld()
{   GLfloat vVertices[] = {  0.0f,  0.5f, 0.0f,
                            -0.5f, -0.5f, 0.0f,
                             0.5f, -0.5f, 0.0f };
    glClear ( GL_COLOR_BUFFER_BIT );

    glVertexAttribPointer ( 0, 3, GL_FLOAT, GL_FALSE, 0, vVertices );
    glEnableVertexAttribArray ( 0 );

    glDrawArrays (GL_TRIANGLES, 0, 3 );
}

In Android.mk was included:

LOCAL_LDLIBS    := -landroid -llog -lEGL -lGLESv1_CM -lOpenSLES -lGLESv2

And in AndroidManifest.xml it is reported:

    <uses-feature android:glEsVersion="0x00020000"></uses-feature>

So, the program debugs and compiles without problems. When launched, the message starts:

    error  libEGL   called unimplemented OpenGL ES API

The forum gives recommendations for java - Android: GLES20: it is called by the unrealized OpenGL ES API , including the setEGLContextClientVersion command code:

    GLSurfaceView surfaceView = new GLSurfaceView(this);
    surfaceView.setEGLContextClientVersion(2);

However, setEGLContextClientVersion is a wrapper method intended for java.

SetEGLContextClientVersion OpenGL ES CG OGLES.

:

const EGLint attribList[] = {EGL_CONTEXT_CLIENT_VERSION, 2,EGL_NONE};
mContext = eglCreateContext(mDisplay, lConfig, EGL_NO_CONTEXT,attribList);

.

+5
1

(?), ( OGL ES2)? , GLESv1_CM GLESv2 - . OpenGL ES 2.0, GLESv2.

EGL? EGL- EGL_OPENGL_ES2_BIT :

EGLint aEGLAttributes[] =
{
    EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, // <--- OpenGL ES 2.0
    ...
    EGL_NONE
};
...
eglChooseConfig(m_EGLDisplay, aEGLAttributes, aEGLConfigs, 1,
            &cEGLConfigs)
...
+6

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