Using LWJGL and PNGDecoder and I've found the documentation to be less than helpful when it comes to textures. I understand the basic concepts concerning them, but I don't know what functions to call (except the calls to create the texture ByteBuffer, upload the data, but not to actually make use of it), and I have no idea what to use in legacy OpenGL (in this case, GL 1.4), as otherwise shaders are required, and I wasn't aware of GL 1.9 and lower making use of shaders.
I am using this to teach game development to other students, which I stated in a previous post. I understand the concepts concerning them, I just don't understand what actual calls to make to get it all to render. I suppose that wasn't clear last time, I need to know the specifics, but I have conceptual knowledge. Sorry for leaving out that information.