//******************************************************************************
//
// Author : Jason Allen
// Email : jra101@home.com
// Website : delphigl.cfxweb.net
// Description : Image loading class. Loads JPG's, PNG's, TGA's and windows
// bitmaps. PNG loading requires the libPNG library and DLL.
//
// Use : image : TGLBMP; // Declaration
// image := TGLBMP.Create(); // Initialization
// image := TGLBMP.Create('a.bmp'); // Initialize and load an image
//
// image.LoadImage('a.bmp'); // Load a BMP (*.BMP) from disk
// image.LoadImage('a.jpg'); // Load a JPG (*.JPG) from disk
// image.LoadImage('b.png'); // Load a PNG (*.PNG) from disk
// image.LoadImage('b.tga'); // Load a TGA (*.TGA) from disk
//
// image.GenTexture(); // Generate an OpenGL texture
// // using loaded image data
// image.Invert(); // Invert image color data
// image.FlipHorz(); // Flips image horizontally
// image.FlipVert(); // Flips image vertically
// image.Rotate90(); // Rotate image 90 degrees
//
// image.SaveScreen('screen.bmp'); // Save bmp screenshot
// image.SaveScreen('screen.jpg'); // Save jpg screenshot
// image.SaveScreen('screen.png'); // Save png screenshot
// image.SaveScreen('screen.tga'); // Save tga screenshot
// image.SaveScreen(); // Save screenshot to memory
//
// Properties : Bits // Pointer to loaded image data
// Width // Loaded image width
// Height // Loaded image height
// ColorDepth // Loaded image color depth
// TextureID // Texture ID for OpenGL texture generated by
// // calling GenTexture after loading an image
//
//******************************************************************************