int array to opengl texture in android
mNewTexture = new int[width*height*4]
    for(int i=0; i<mRGB.length; i=i+4){

        mNewTexture[i]   = getR(mRGB[i])   ;            //R
        mNewTexture[i+1] = getG(mRGB[i])   ;            //G
        mNewTexture[i+2] = getB(mRGB[i])   ;            //B
        mNewTexture[i+3] = getA(mRGB[i]);       //A

    }

gl.glBindTexture(GL10.GL_TEXTURE_2D, tex);
        gl.glTexImage2D(GL10.GL_TEXTURE_2D, 0, GL10.GL_RGBA, 1024, 512, 0, GL10.GL_RGBA, GL10.GL_FLOAT, FloatBuffer.wrap(mNewTexture));
        gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR);