// jpeg.h	-- Thatcher Ulrich <tu@tulrich.com> 2002// This source code has been donated to the Public Domain.  Do// whatever you want with it.// Wrapper for jpeg file operations.  The actual work is done by the// IJG jpeg lib.#ifndef JPEG_H#define JPEG_H#include "base/tu_config.h"struct jpeg_decompress_struct;struct jpeg_compress_struct;class tu_file;namespace jpeg{	// wrapper around jpeg_decompress_struct.	struct input {		// Read header and create a jpeg input object.		static input*	create(tu_file* in);// 		// Read SWF JPEG2-style header (separate encoding// 		// table followed by image data), and create jpeg// 		// input object.// 		static input*	create_swf_jpeg2(SDL_RWops* in);		static input*	create_swf_jpeg2_header_only(tu_file* in);		virtual ~input();		virtual void	discard_partial_buffer() = 0;		virtual void	start_image() = 0;		virtual void	finish_image() = 0;		virtual int	get_height() const = 0;		virtual int	get_width() const = 0;		virtual void	read_scanline(unsigned char* rgb_data) = 0;	};	// Helper object for writing jpeg image data.	struct output	{		// Create an output object.   Quality goes from 1-100.		static output*	create(tu_file* out, int width, int height, int quality);		virtual ~output();		// ...		virtual void	write_scanline(unsigned char* rgb_data) = 0;	};};#endif // JPEG_H// Local Variables:// mode: C++// c-basic-offset: 8 // tab-width: 8// indent-tabs-mode: t// End: