Hi,

It is a pain in the ass to check which format can be used in order to create an image from a DDSImage object. It would be really nice to have a several methods, which provide the user with all the information he needs, without a lot of value checking.

For example:

DDSImage image = .... ;

gl.glTexImage3D(image.getTarget(), mipMapLevel, image.getInternalFormat,
    image.getWidth(), image.getHeight(), image.getDepth(), border, image.getPixelFormat(), image.getPixelType(), image.getRawData());

or

gl.glCompressedTexImage3D(image.getTarget(), mipMapLevel, 
    image.getCompressionFormat(), image.getWidth(), image.getHeight(),
    image.getDepth(), border, image.getSize(), image.getRawData());

There is also a problem for users with out knowledge out size calculation of compressed images.
The size is calculated by

int size = Math.max(PBS, width) / PBS * Math.max(PBS, height) / PBS
				* bytes * depth;

where PBS is the pixel block size (uncompressed). So PBS contains the number of pixels, when they are uncompressed and bytes is the size of these pixel in the raw data buffer.
For "GL_COMPRESSED_RGBA_S3TC_DXT5_EXT" PBS is 4 and bytes 16. The real problem occurs in small mipmap levels. where the width and / or height are below minimum block size;