Click here to Skip to main content
14,367,233 members
Rate this:
Please Sign up or sign in to vote.
See more:
/*
 * wrbmp.c
 *
 * Copyright (C) 1994-1996, 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 routines to write output images in Microsoft "BMP"
 * format (MS Windows 3.x and OS/2 1.x flavors).
 * Either 8-bit colormapped or 24-bit full-color format can be written.
 * No compression is supported.
 *
 * These routines may need modification for non-Unix environments or
 * specialized applications.  As they stand, they assume output to
 * an ordinary stdio stream.
 *
 * This code contributed by James Arthur Boucher.
 */
#include "stdafx.h"

#include "cdjpeg.h"		/* Common decls for cjpeg/djpeg applications */
#define SIZEOF(object) ((size_t) sizeof(object))/*megha*/
#ifdef BMP_SUPPORTED
#include <string.h>/*megha*/
#define MEMZERO(target,size)	memset((void *)(target), 0, (size_t)(size))/*megha*/

/*
 * To support 12-bit JPEG data, we'd have to scale output down to 8 bits.
 * This is not yet implemented.
 */

#if BITS_IN_JSAMPLE != 8
  Sorry, this code only copes with 8-bit JSAMPLEs. /* deliberate syntax err */
#endif

/*
 * Since BMP stores scanlines bottom-to-top, we have to invert the image
 * from JPEG's top-to-bottom order.  To do this, we save the outgoing data
 * in a virtual array during put_pixel_row calls, then actually emit the
 * BMP file during finish_output.  The virtual array contains one JSAMPLE per
 * pixel if the output is grayscale or colormapped, three if it is full color.
 */

/* Private version of data destination object */

typedef struct {
  struct djpeg_dest_struct pub;	/* public fields */

  boolean is_os2;		/* saves the OS2 format request flag */

  jvirt_sarray_ptr whole_image;	/* needed to reverse row order */
  JDIMENSION data_width;	/* JSAMPLEs per row */
  JDIMENSION row_width;		/* physical width of one row in the BMP file */
  int pad_bytes;		/* number of padding bytes needed per row */
  JDIMENSION cur_output_row;	/* next row# to write to virtual array */
} bmp_dest_struct;

typedef bmp_dest_struct * bmp_dest_ptr;


/* Forward declarations */
LOCAL(void) write_colormap
	JPP((j_decompress_ptr cinfo, bmp_dest_ptr dest,
	     int map_colors, int map_entry_size));


/*
 * Write some pixel data.
 * In this module rows_supplied will always be 1.
 */

int METHODDEF(void)
put_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo,
		JDIMENSION rows_supplied)
/* This version is for writing 24-bit pixels */
{
  bmp_dest_ptr dest = (bmp_dest_ptr) dinfo;
  JSAMPARRAY image_ptr;
  register JSAMPROW inptr, outptr;
  register JDIMENSION col;
  int pad;

  /* Access next row in virtual array */
  image_ptr = (*cinfo->mem->access_virt_sarray)
    ((j_common_ptr) cinfo, dest->whole_image,
     dest->cur_output_row, (JDIMENSION) 1, TRUE);
  dest->cur_output_row++;

  /* Transfer data.  Note destination values must be in BGR order
   * (even though Microsoft's own documents say the opposite).
   */
  inptr = dest->pub.buffer[0];
  outptr = image_ptr[0];
  for (col = cinfo->output_width; col > 0; col--) {
    outptr[2] = *inptr++;	/* can omit GETJSAMPLE() safely */
    outptr[1] = *inptr++;
    outptr[0] = *inptr++;
    outptr += 3;
  }

  /* Zero out the pad bytes. */
  pad = dest->pad_bytes;
  while (--pad >= 0)
    *outptr++ = 0;
}

int METHODDEF(void)
put_gray_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo,
	       JDIMENSION rows_supplied)
/* This version is for grayscale OR quantized color output */
{
  bmp_dest_ptr dest = (bmp_dest_ptr) dinfo;
  JSAMPARRAY image_ptr;
  register JSAMPROW inptr, outptr;
  register JDIMENSION col;
  int pad;

  /* Access next row in virtual array */
  image_ptr = (*cinfo->mem->access_virt_sarray)
    ((j_common_ptr) cinfo, dest->whole_image,
     dest->cur_output_row, (JDIMENSION) 1, TRUE);
  dest->cur_output_row++;

  /* Transfer data. */
  inptr = dest->pub.buffer[0];
  outptr = image_ptr[0];
  for (col = cinfo->output_width; col > 0; col--) {
    *outptr++ = *inptr++;	/* can omit GETJSAMPLE() safely */
  }

  /* Zero out the pad bytes. */
  pad = dest->pad_bytes;
  while (--pad >= 0)
    *outptr++ = 0;
}


/*
 * Startup: normally writes the file header.
 * In this module we may as well postpone everything until finish_output.
 */

int METHODDEF(void)
start_output_bmp (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo)
{
  /* no work here */
}


/*
 * Finish up at the end of the file.
 *
 * Here is where we really output the BMP file.
 *
 * First, routines to write the Windows and OS/2 variants of the file header.
 */

LOCAL(void)
write_bmp_header (j_decompress_ptr cinfo, bmp_dest_ptr dest)
/* Write a Windows-style BMP file header, including colormap if needed */
{
  char bmpfileheader[14];
  char bmpinfoheader[40];
#define PUT_2B(array,offset,value)  \
	(array[offset] = (char) ((value) & 0xFF), \
	 array[offset+1] = (char) (((value) >> 8) & 0xFF))
#define PUT_4B(array,offset,value)  \
	(array[offset] = (char) ((value) & 0xFF), \
	 array[offset+1] = (char) (((value) >> 8) & 0xFF), \
	 array[offset+2] = (char) (((value) >> 16) & 0xFF), \
	 array[offset+3] = (char) (((value) >> 24) & 0xFF))
  INT32 headersize, bfSize;
  int bits_per_pixel, cmap_entries;

  /* Compute colormap size and total file size */
  if (cinfo->out_color_space == JCS_RGB) {
    if (cinfo->quantize_colors) {
      /* Colormapped RGB */
      bits_per_pixel = 8;
      cmap_entries = 256;
    } else {
      /* Unquantized, full color RGB */
      bits_per_pixel = 24;
      cmap_entries = 0;
    }
  } else {
    /* Grayscale output.  We need to fake a 256-entry colormap. */
    bits_per_pixel = 8;
    cmap_entries = 256;
  }
  /* File size */
  headersize = 14 + 40 + cmap_entries * 4; /* Header and colormap */
  bfSize = headersize + (INT32) dest->row_width * (INT32) cinfo->output_height;
  
  /* Set unused fields of header to 0 */
  MEMZERO(bmpfileheader, SIZEOF(bmpfileheader));
  MEMZERO(bmpinfoheader, SIZEOF(bmpinfoheader));

  /* Fill the file header */
  bmpfileheader[0] = 0x42;	/* first 2 bytes are ASCII 'B', 'M' */
  bmpfileheader[1] = 0x4D;
  PUT_4B(bmpfileheader, 2, bfSize); /* bfSize */
  /* we leave bfReserved1 & bfReserved2 = 0 */
  PUT_4B(bmpfileheader, 10, headersize); /* bfOffBits */

  /* Fill the info header (Microsoft calls this a BITMAPINFOHEADER) */
  PUT_2B(bmpinfoheader, 0, 40);	/* biSize */
  PUT_4B(bmpinfoheader, 4, cinfo->output_width); /* biWidth */
  PUT_4B(bmpinfoheader, 8, cinfo->output_height); /* biHeight */
  PUT_2B(bmpinfoheader, 12, 1);	/* biPlanes - must be 1 */
  PUT_2B(bmpinfoheader, 14, bits_per_pixel); /* biBitCount */
  /* we leave biCompression = 0, for none */
  /* we leave biSizeImage = 0; this is correct for uncompressed data */
  if (cinfo->density_unit == 2) { /* if have density in dots/cm, then */
    PUT_4B(bmpinfoheader, 24, (INT32) (cinfo->X_density*100)); /* XPels/M */
    PUT_4B(bmpinfoheader, 28, (INT32) (cinfo->Y_density*100)); /* XPels/M */
  }
  PUT_2B(bmpinfoheader, 32, cmap_entries); /* biClrUsed */
  /* we leave biClrImportant = 0 */
  
  if (JFWRITE(dest->pub.output_file, bmpfileheader, 14) != (size_t) 14)
    ERREXIT(cinfo, JERR_FILE_WRITE);
  if (JFWRITE(dest->pub.output_file, bmpinfoheader, 40) != (size_t) 40)
    ERREXIT(cinfo, JERR_FILE_WRITE);

  if (cmap_entries > 0)
    write_colormap(cinfo, dest, cmap_entries, 4);
}


LOCAL(void)
write_os2_header (j_decompress_ptr cinfo, bmp_dest_ptr dest)
/* Write an OS2-style BMP file header, including colormap if needed */
{
  char bmpfileheader[14];
  char bmpcoreheader[12];
  INT32 headersize, bfSize;
  int bits_per_pixel, cmap_entries;

  /* Compute colormap size and total file size */
  if (cinfo->out_color_space == JCS_RGB) {
    if (cinfo->quantize_colors) {
      /* Colormapped RGB */
      bits_per_pixel = 8;
      cmap_entries = 256;
    } else {
      /* Unquantized, full color RGB */
      bits_per_pixel = 24;
      cmap_entries = 0;
    }
  } else {
    /* Grayscale output.  We need to fake a 256-entry colormap. */
    bits_per_pixel = 8;
    cmap_entries = 256;
  }
  /* File size */
  headersize = 14 + 12 + cmap_entries * 3; /* Header and colormap */
  bfSize = headersize + (INT32) dest->row_width * (INT32) cinfo->output_height;
  
  /* Set unused fields of header to 0 */
  MEMZERO(bmpfileheader, SIZEOF(bmpfileheader));
  MEMZERO(bmpcoreheader, SIZEOF(bmpcoreheader));

  /* Fill the file header */
  bmpfileheader[0] = 0x42;	/* first 2 bytes are ASCII 'B', 'M' */
  bmpfileheader[1] = 0x4D;
  PUT_4B(bmpfileheader, 2, bfSize); /* bfSize */
  /* we leave bfReserved1 & bfReserved2 = 0 */
  PUT_4B(bmpfileheader, 10, headersize); /* bfOffBits */

  /* Fill the info header (Microsoft calls this a BITMAPCOREHEADER) */
  PUT_2B(bmpcoreheader, 0, 12);	/* bcSize */
  PUT_2B(bmpcoreheader, 4, cinfo->output_width); /* bcWidth */
  PUT_2B(bmpcoreheader, 6, cinfo->output_height); /* bcHeight */
  PUT_2B(bmpcoreheader, 8, 1);	/* bcPlanes - must be 1 */
  PUT_2B(bmpcoreheader, 10, bits_per_pixel); /* bcBitCount */

  if (JFWRITE(dest->pub.output_file, bmpfileheader, 14) != (size_t) 14)
    ERREXIT(cinfo, JERR_FILE_WRITE);
  if (JFWRITE(dest->pub.output_file, bmpcoreheader, 12) != (size_t) 12)
    ERREXIT(cinfo, JERR_FILE_WRITE);

  if (cmap_entries > 0)
    write_colormap(cinfo, dest, cmap_entries, 3);
}


/*
 * Write the colormap.
 * Windows uses BGR0 map entries; OS/2 uses BGR entries.
 */

LOCAL(void)
write_colormap (j_decompress_ptr cinfo, bmp_dest_ptr dest,
		int map_colors, int map_entry_size)
{
  JSAMPARRAY colormap = cinfo->colormap;
  int num_colors = cinfo->actual_number_of_colors;
  FILE * outfile = dest->pub.output_file;
  int i;

  if (colormap != NULL) {
    if (cinfo->out_color_components == 3) {
      /* Normal case with RGB colormap */
      for (i = 0; i < num_colors; i++) {
	putc(GETJSAMPLE(colormap[2][i]), outfile);
	putc(GETJSAMPLE(colormap[1][i]), outfile);
	putc(GETJSAMPLE(colormap[0][i]), outfile);
	if (map_entry_size == 4)
	  putc(0, outfile);
      }
    } else {
      /* Grayscale colormap (only happens with grayscale quantization) */
      for (i = 0; i < num_colors; i++) {
	putc(GETJSAMPLE(colormap[0][i]), outfile);
	putc(GETJSAMPLE(colormap[0][i]), outfile);
	putc(GETJSAMPLE(colormap[0][i]), outfile);
	if (map_entry_size == 4)
	  putc(0, outfile);
      }
    }
  } else {
    /* If no colormap, must be grayscale data.  Generate a linear "map". */
    for (i = 0; i < 256; i++) {
      putc(i, outfile);
      putc(i, outfile);
      putc(i, outfile);
      if (map_entry_size == 4)
	putc(0, outfile);
    }
  }
  /* Pad colormap with zeros to ensure specified number of colormap entries */ 
  if (i > map_colors)
    ERREXIT1(cinfo, JERR_TOO_MANY_COLORS, i);
  for (; i < map_colors; i++) {
    putc(0, outfile);
    putc(0, outfile);
    putc(0, outfile);
    if (map_entry_size == 4)
      putc(0, outfile);
  }
}


int METHODDEF(void)
finish_output_bmp (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo)
{
  bmp_dest_ptr dest = (bmp_dest_ptr) dinfo;
  register FILE * outfile = dest->pub.output_file;
  JSAMPARRAY image_ptr;
  register JSAMPROW data_ptr;
  JDIMENSION row;
  register JDIMENSION col;
  cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress;

  /* Write the header and colormap */
  if (dest->is_os2)
    write_os2_header(cinfo, dest);
  else
    write_bmp_header(cinfo, dest);

  /* Write the file body from our virtual array */
  for (row = cinfo->output_height; row > 0; row--) {
    if (progress != NULL) {
      progress->pub.pass_counter = (long) (cinfo->output_height - row);
      progress->pub.pass_limit = (long) cinfo->output_height;
      (*progress->pub.progress_monitor) ((j_common_ptr) cinfo);
    }
    image_ptr = (*cinfo->mem->access_virt_sarray)
      ((j_common_ptr) cinfo, dest->whole_image, row-1, (JDIMENSION) 1, FALSE);
    data_ptr = image_ptr[0];
    for (col = dest->row_width; col > 0; col--) {
      putc(GETJSAMPLE(*data_ptr), outfile);
      data_ptr++;
    }
  }
  if (progress != NULL)
    progress->completed_extra_passes++;

  /* Make sure we wrote the output file OK */
  fflush(outfile);
  if (ferror(outfile))
    ERREXIT(cinfo, JERR_FILE_WRITE);
}


/*
 * The module selection routine for BMP format output.
 */

GLOBAL(djpeg_dest_ptr)
jinit_write_bmp (j_decompress_ptr cinfo, boolean is_os2)
{
  bmp_dest_ptr dest;
  JDIMENSION row_width;

  /* Create module interface object, fill in method pointers */
  dest = (bmp_dest_ptr)
      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
				  SIZEOF(bmp_dest_struct));
  dest->pub.start_output = start_output_bmp;
  dest->pub.finish_output = finish_output_bmp;
  dest->is_os2 = is_os2;

  if (cinfo->out_color_space == JCS_GRAYSCALE) {
    dest->pub.put_pixel_rows = put_gray_rows;
  } else if (cinfo->out_color_space == JCS_RGB) {
    if (cinfo->quantize_colors)
      dest->pub.put_pixel_rows = put_gray_rows;
    else
      dest->pub.put_pixel_rows = put_pixel_rows;
  } else {
    ERREXIT(cinfo, JERR_BMP_COLORSPACE);
  }

  /* Calculate output image dimensions so we can allocate space */
  jpeg_calc_output_dimensions(cinfo);

  /* Determine width of rows in the BMP file (padded to 4-byte boundary). */
  row_width = cinfo->output_width * cinfo->output_components;
  dest->data_width = row_width;
  while ((row_width & 3) != 0) row_width++;
  dest->row_width = row_width;
  dest->pad_bytes = (int) (row_width - dest->data_width);

  /* Allocate space for inversion array, prepare for write pass */
  dest->whole_image = (*cinfo->mem->request_virt_sarray)
    ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE,
     row_width, cinfo->output_height, (JDIMENSION) 1);
  dest->cur_output_row = 0;
  if (cinfo->progress != 0) {
    cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress;
    progress->total_extra_passes++; /* count file input as separate pass */
  }

  /* Create decompressor output buffer. */
  dest->pub.buffer = (*cinfo->mem->alloc_sarray)
    ((j_common_ptr) cinfo, JPOOL_IMAGE, row_width, (JDIMENSION) 1);
  dest->pub.buffer_height = 1;

  return (djpeg_dest_ptr) dest;
}

What I have tried:

i have tried by adding
<pre>#include <iostream>
#include <string>
#include <cstdlib>
these header files but its not working
Posted
Updated 20-Oct-17 22:54pm
Comments
Richard MacCutchan 21-Oct-17 4:05am
   
Ask the person who wrote this code.

1 solution

Rate this:
Please Sign up or sign in to vote.

Solution 1

Why do you ask the same question again and again?

The answer is still the same: The symbol is defined in the jinclude.h file.
So either include that file, copy the definition into your file, or rewrite the code so that the symbol is not required anymore.
   

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)




CodeProject, 503-250 Ferrand Drive Toronto Ontario, M3C 3G8 Canada +1 416-849-8900 x 100