[android-developers] How to transform not POT images into POT bitmaps to use them on textures for openGL?

Im doing my first steps on OpenGL-ES. Atm i can load Power of Two
(POT) textures on a square polygon that i can rotate and zoom on the
screen. If i try to load a non POT png, then, the texture appears
white.

What I need to do some trick to transform non POT textures into POT
bitmaps to fill the texture of my square polygon. How can i transform
them into POT bitmaps?

This is the actual code i have to load textures:

FROM ASSETS DIR:

String imagePath = "radiocd5.png";
AssetManager mngr = context.getAssets();
// Create an input stream to read from the asset folder
InputStream is=null;
try {
is = mngr.open(imagePath);
} catch (IOException e1) { e1.printStackTrace(); }

//Get the texture from the Android resource directory
InputStream is =
context.getResources().openRawResource(R.drawable.radiocd5);
Bitmap bitmap = BitmapFactory.decodeStream(is);
//Use the Android GLUtils to specify a two-dimensional texture
image from our bitmap
GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, bitmap, 0);

FROM RES/DRAWABLE:

//Get the texture from the Android resource directory
InputStream is =
context.getResources().openRawResource(R.drawable.radiocd5);
Bitmap bitmap = BitmapFactory.decodeStream(is);
//Use the Android GLUtils to specify a two-dimensional texture
image from our bitmap
GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, bitmap, 0);

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