/* * cdjpeg.h * * Copyright (C) 1994, Thomas G. Lane. * This file is part of the Independent JPEG Group's software. * For conditions of distribution and use, see the accompanying README file. * * This file contains common declarations for the sample applications * cjpeg and djpeg.  It is NOT used by the core JPEG library. */#define JPEG_CJPEG_DJPEG#include "jinclude.h"#include "jpeglib.h"		/* not jpegint.h; these are not core modules */#include "jerror.h"		/* get library error codes too */#include "cderror.h"		/* get application-specific error codes *//* * Object interface for cjpeg's source file decoding modules */typedef struct cjpeg_source_struct * cjpeg_source_ptr;struct cjpeg_source_struct {  JMETHOD(void, start_input, (j_compress_ptr cinfo,			      cjpeg_source_ptr sinfo));  JMETHOD(JDIMENSION, get_pixel_rows, (j_compress_ptr cinfo,				       cjpeg_source_ptr sinfo));  JMETHOD(void, finish_input, (j_compress_ptr cinfo,			       cjpeg_source_ptr sinfo));  FILE *input_file;  JSAMPARRAY buffer;  JDIMENSION buffer_height;};/* * Object interface for djpeg's output file encoding modules */typedef struct djpeg_dest_struct * djpeg_dest_ptr;struct djpeg_dest_struct {  /* start_output is called after jpeg_start_decompress finishes.   * The color map will be ready at this time, if one is needed.   */  JMETHOD(void, start_output, (j_decompress_ptr cinfo,			       djpeg_dest_ptr dinfo));  /* Emit the specified number of pixel rows from the buffer. */  JMETHOD(void, put_pixel_rows, (j_decompress_ptr cinfo,				 djpeg_dest_ptr dinfo,				 JDIMENSION rows_supplied));  /* Finish up at the end of the image. */  JMETHOD(void, finish_output, (j_decompress_ptr cinfo,				djpeg_dest_ptr dinfo));  /* Target file spec; filled in by djpeg.c after object is created. */  FILE * output_file;  /* Output pixel-row buffer.  Created by module init or start_output.   * Width is cinfo->output_width * cinfo->output_components;   * height is buffer_height.   */  JSAMPARRAY buffer;  JDIMENSION buffer_height;  JSAMPARRAY image_buffer[MAX_COMPONENTS];};/* Short forms of external names for systems with brain-damaged linkers. */#ifdef NEED_SHORT_EXTERNAL_NAMES#define jinit_read_gif		jIRdGIF#define jinit_write_gif		jIWrGIF#define jinit_read_ppm		jIRdPPM#define jinit_write_ppm		jIWrPPM#define jinit_read_raw		jIRdRAW#define jinit_write_raw		jIWrRAW#define jinit_read_rle		jIRdRLE#define jinit_write_rle		jIWrRLE#define jinit_read_targa	jIRdTarga#define jinit_write_targa	jIWrTarga#endif /* NEED_SHORT_EXTERNAL_NAMES *//* Module selection routines for I/O modules. */EXTERN cjpeg_source_ptr jinit_read_gif JPP((j_compress_ptr cinfo));EXTERN djpeg_dest_ptr jinit_write_gif JPP((j_decompress_ptr cinfo));EXTERN cjpeg_source_ptr jinit_read_ppm JPP((j_compress_ptr cinfo));EXTERN djpeg_dest_ptr jinit_write_ppm JPP((j_decompress_ptr cinfo));EXTERN cjpeg_source_ptr jinit_read_raw JPP((j_compress_ptr cinfo));EXTERN djpeg_dest_ptr jinit_write_raw JPP((j_decompress_ptr cinfo));EXTERN cjpeg_source_ptr jinit_read_rle JPP((j_compress_ptr cinfo));EXTERN djpeg_dest_ptr jinit_write_rle JPP((j_decompress_ptr cinfo));EXTERN cjpeg_source_ptr jinit_read_targa JPP((j_compress_ptr cinfo));EXTERN djpeg_dest_ptr jinit_write_targa JPP((j_decompress_ptr cinfo));