Imported Upstream version 1.8.0upstream/1.8.0

1 files changed, 0 insertions, 480 deletions

diff --git a/jpeg/rdbmp.c b/jpeg/rdbmp.c
deleted file mode 100644
index fd773d4..0000000
--- a/jpeg/rdbmp.c
+++ /dev/null
@@ -1,480 +0,0 @@
-/*
- * rdbmp.c
- *
- * Copyright (C) 1994-1996, Thomas G. Lane.
- * Modified 2009-2010 by Guido Vollbeding.
- * 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 read input images in Microsoft "BMP"
- * format (MS Windows 3.x, OS/2 1.x, and OS/2 2.x flavors).
- * Currently, only 8-bit and 24-bit images are supported, not 1-bit or
- * 4-bit (feeding such low-depth images into JPEG would be silly anyway).
- * Also, we don't support RLE-compressed files.
- *
- * These routines may need modification for non-Unix environments or
- * specialized applications.  As they stand, they assume input from
- * an ordinary stdio stream.  They further assume that reading begins
- * at the start of the file; start_input may need work if the
- * user interface has already read some data (e.g., to determine that
- * the file is indeed BMP format).
- *
- * This code contributed by James Arthur Boucher.
- */
-
-#include "cdjpeg.h"		/* Common decls for cjpeg/djpeg applications */
-
-#ifdef BMP_SUPPORTED
-
-
-/* Macros to deal with unsigned chars as efficiently as compiler allows */
-
-#ifdef HAVE_UNSIGNED_CHAR
-typedef unsigned char U_CHAR;
-#define UCH(x)	((int) (x))
-#else /* !HAVE_UNSIGNED_CHAR */
-#ifdef CHAR_IS_UNSIGNED
-typedef char U_CHAR;
-#define UCH(x)	((int) (x))
-#else
-typedef char U_CHAR;
-#define UCH(x)	((int) (x) & 0xFF)
-#endif
-#endif /* HAVE_UNSIGNED_CHAR */
-
-
-#define	ReadOK(file,buffer,len)	(JFREAD(file,buffer,len) == ((size_t) (len)))
-
-
-/* Private version of data source object */
-
-typedef struct _bmp_source_struct * bmp_source_ptr;
-
-typedef struct _bmp_source_struct {
-  struct cjpeg_source_struct pub; /* public fields */
-
-  j_compress_ptr cinfo;		/* back link saves passing separate parm */
-
-  JSAMPARRAY colormap;		/* BMP colormap (converted to my format) */
-
-  jvirt_sarray_ptr whole_image;	/* Needed to reverse row order */
-  JDIMENSION source_row;	/* Current source row number */
-  JDIMENSION row_width;		/* Physical width of scanlines in file */
-
-  int bits_per_pixel;		/* remembers 8- or 24-bit format */
-} bmp_source_struct;
-
-
-LOCAL(int)
-read_byte (bmp_source_ptr sinfo)
-/* Read next byte from BMP file */
-{
-  register FILE *infile = sinfo->pub.input_file;
-  register int c;
-
-  if ((c = getc(infile)) == EOF)
-    ERREXIT(sinfo->cinfo, JERR_INPUT_EOF);
-  return c;
-}
-
-
-LOCAL(void)
-read_colormap (bmp_source_ptr sinfo, int cmaplen, int mapentrysize)
-/* Read the colormap from a BMP file */
-{
-  int i;
-
-  switch (mapentrysize) {
-  case 3:
-    /* BGR format (occurs in OS/2 files) */
-    for (i = 0; i < cmaplen; i++) {
-      sinfo->colormap[2][i] = (JSAMPLE) read_byte(sinfo);
-      sinfo->colormap[1][i] = (JSAMPLE) read_byte(sinfo);
-      sinfo->colormap[0][i] = (JSAMPLE) read_byte(sinfo);
-    }
-    break;
-  case 4:
-    /* BGR0 format (occurs in MS Windows files) */
-    for (i = 0; i < cmaplen; i++) {
-      sinfo->colormap[2][i] = (JSAMPLE) read_byte(sinfo);
-      sinfo->colormap[1][i] = (JSAMPLE) read_byte(sinfo);
-      sinfo->colormap[0][i] = (JSAMPLE) read_byte(sinfo);
-      (void) read_byte(sinfo);
-    }
-    break;
-  default:
-    ERREXIT(sinfo->cinfo, JERR_BMP_BADCMAP);
-    break;
-  }
-}
-
-
-/*
- * Read one row of pixels.
- * The image has been read into the whole_image array, but is otherwise
- * unprocessed.  We must read it out in top-to-bottom row order, and if
- * it is an 8-bit image, we must expand colormapped pixels to 24bit format.
- */
-
-METHODDEF(JDIMENSION)
-get_8bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo)
-/* This version is for reading 8-bit colormap indexes */
-{
-  bmp_source_ptr source = (bmp_source_ptr) sinfo;
-  register JSAMPARRAY colormap = source->colormap;
-  JSAMPARRAY image_ptr;
-  register int t;
-  register JSAMPROW inptr, outptr;
-  register JDIMENSION col;
-
-  /* Fetch next row from virtual array */
-  source->source_row--;
-  image_ptr = (*cinfo->mem->access_virt_sarray)
-    ((j_common_ptr) cinfo, source->whole_image,
-     source->source_row, (JDIMENSION) 1, FALSE);
-
-  /* Expand the colormap indexes to real data */
-  inptr = image_ptr[0];
-  outptr = source->pub.buffer[0];
-  for (col = cinfo->image_width; col > 0; col--) {
-    t = GETJSAMPLE(*inptr++);
-    *outptr++ = colormap[0][t];	/* can omit GETJSAMPLE() safely */
-    *outptr++ = colormap[1][t];
-    *outptr++ = colormap[2][t];
-  }
-
-  return 1;
-}
-
-
-METHODDEF(JDIMENSION)
-get_24bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo)
-/* This version is for reading 24-bit pixels */
-{
-  bmp_source_ptr source = (bmp_source_ptr) sinfo;
-  JSAMPARRAY image_ptr;
-  register JSAMPROW inptr, outptr;
-  register JDIMENSION col;
-
-  /* Fetch next row from virtual array */
-  source->source_row--;
-  image_ptr = (*cinfo->mem->access_virt_sarray)
-    ((j_common_ptr) cinfo, source->whole_image,
-     source->source_row, (JDIMENSION) 1, FALSE);
-
-  /* Transfer data.  Note source values are in BGR order
-   * (even though Microsoft's own documents say the opposite).
-   */
-  inptr = image_ptr[0];
-  outptr = source->pub.buffer[0];
-  for (col = cinfo->image_width; col > 0; col--) {
-    outptr[2] = *inptr++;	/* can omit GETJSAMPLE() safely */
-    outptr[1] = *inptr++;
-    outptr[0] = *inptr++;
-    outptr += 3;
-  }
-
-  return 1;
-}
-
-
-METHODDEF(JDIMENSION)
-get_32bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo)
-/* This version is for reading 32-bit pixels */
-{
-  bmp_source_ptr source = (bmp_source_ptr) sinfo;
-  JSAMPARRAY image_ptr;
-  register JSAMPROW inptr, outptr;
-  register JDIMENSION col;
-
-  /* Fetch next row from virtual array */
-  source->source_row--;
-  image_ptr = (*cinfo->mem->access_virt_sarray)
-    ((j_common_ptr) cinfo, source->whole_image,
-     source->source_row, (JDIMENSION) 1, FALSE);
-  /* Transfer data.  Note source values are in BGR order
-   * (even though Microsoft's own documents say the opposite).
-   */
-  inptr = image_ptr[0];
-  outptr = source->pub.buffer[0];
-  for (col = cinfo->image_width; col > 0; col--) {
-    outptr[2] = *inptr++;	/* can omit GETJSAMPLE() safely */
-    outptr[1] = *inptr++;
-    outptr[0] = *inptr++;
-    inptr++;			/* skip the 4th byte (Alpha channel) */
-    outptr += 3;
-  }
-
-  return 1;
-}
-
-
-/*
- * This method loads the image into whole_image during the first call on
- * get_pixel_rows.  The get_pixel_rows pointer is then adjusted to call
- * get_8bit_row, get_24bit_row, or get_32bit_row on subsequent calls.
- */
-
-METHODDEF(JDIMENSION)
-preload_image (j_compress_ptr cinfo, cjpeg_source_ptr sinfo)
-{
-  bmp_source_ptr source = (bmp_source_ptr) sinfo;
-  register FILE *infile = source->pub.input_file;
-  register int c;
-  register JSAMPROW out_ptr;
-  JSAMPARRAY image_ptr;
-  JDIMENSION row, col;
-  cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress;
-
-  /* Read the data into a virtual array in input-file row order. */
-  for (row = 0; row < cinfo->image_height; row++) {
-    if (progress != NULL) {
-      progress->pub.pass_counter = (long) row;
-      progress->pub.pass_limit = (long) cinfo->image_height;
-      (*progress->pub.progress_monitor) ((j_common_ptr) cinfo);
-    }
-    image_ptr = (*cinfo->mem->access_virt_sarray)
-      ((j_common_ptr) cinfo, source->whole_image,
-       row, (JDIMENSION) 1, TRUE);
-    out_ptr = image_ptr[0];
-    for (col = source->row_width; col > 0; col--) {
-      /* inline copy of read_byte() for speed */
-      if ((c = getc(infile)) == EOF)
-	ERREXIT(cinfo, JERR_INPUT_EOF);
-      *out_ptr++ = (JSAMPLE) c;
-    }
-  }
-  if (progress != NULL)
-    progress->completed_extra_passes++;
-
-  /* Set up to read from the virtual array in top-to-bottom order */
-  switch (source->bits_per_pixel) {
-  case 8:
-    source->pub.get_pixel_rows = get_8bit_row;
-    break;
-  case 24:
-    source->pub.get_pixel_rows = get_24bit_row;
-    break;
-  case 32:
-    source->pub.get_pixel_rows = get_32bit_row;
-    break;
-  default:
-    ERREXIT(cinfo, JERR_BMP_BADDEPTH);
-  }
-  source->source_row = cinfo->image_height;
-
-  /* And read the first row */
-  return (*source->pub.get_pixel_rows) (cinfo, sinfo);
-}
-
-
-/*
- * Read the file header; return image size and component count.
- */
-
-METHODDEF(void)
-start_input_bmp (j_compress_ptr cinfo, cjpeg_source_ptr sinfo)
-{
-  bmp_source_ptr source = (bmp_source_ptr) sinfo;
-  U_CHAR bmpfileheader[14];
-  U_CHAR bmpinfoheader[64];
-#define GET_2B(array,offset)  ((unsigned int) UCH(array[offset]) + \
-			       (((unsigned int) UCH(array[offset+1])) << 8))
-#define GET_4B(array,offset)  ((INT32) UCH(array[offset]) + \
-			       (((INT32) UCH(array[offset+1])) << 8) + \
-			       (((INT32) UCH(array[offset+2])) << 16) + \
-			       (((INT32) UCH(array[offset+3])) << 24))
-  INT32 bfOffBits;
-  INT32 headerSize;
-  INT32 biWidth;
-  INT32 biHeight;
-  unsigned int biPlanes;
-  INT32 biCompression;
-  INT32 biXPelsPerMeter,biYPelsPerMeter;
-  INT32 biClrUsed = 0;
-  int mapentrysize = 0;		/* 0 indicates no colormap */
-  INT32 bPad;
-  JDIMENSION row_width;
-
-  /* Read and verify the bitmap file header */
-  if (! ReadOK(source->pub.input_file, bmpfileheader, 14))
-    ERREXIT(cinfo, JERR_INPUT_EOF);
-  if (GET_2B(bmpfileheader,0) != 0x4D42) /* 'BM' */
-    ERREXIT(cinfo, JERR_BMP_NOT);
-  bfOffBits = (INT32) GET_4B(bmpfileheader,10);
-  /* We ignore the remaining fileheader fields */
-
-  /* The infoheader might be 12 bytes (OS/2 1.x), 40 bytes (Windows),
-   * or 64 bytes (OS/2 2.x).  Check the first 4 bytes to find out which.
-   */
-  if (! ReadOK(source->pub.input_file, bmpinfoheader, 4))
-    ERREXIT(cinfo, JERR_INPUT_EOF);
-  headerSize = (INT32) GET_4B(bmpinfoheader,0);
-  if (headerSize < 12 || headerSize > 64)
-    ERREXIT(cinfo, JERR_BMP_BADHEADER);
-  if (! ReadOK(source->pub.input_file, bmpinfoheader+4, headerSize-4))
-    ERREXIT(cinfo, JERR_INPUT_EOF);
-
-  switch ((int) headerSize) {
-  case 12:
-    /* Decode OS/2 1.x header (Microsoft calls this a BITMAPCOREHEADER) */
-    biWidth = (INT32) GET_2B(bmpinfoheader,4);
-    biHeight = (INT32) GET_2B(bmpinfoheader,6);
-    biPlanes = GET_2B(bmpinfoheader,8);
-    source->bits_per_pixel = (int) GET_2B(bmpinfoheader,10);
-
-    switch (source->bits_per_pixel) {
-    case 8:			/* colormapped image */
-      mapentrysize = 3;		/* OS/2 uses RGBTRIPLE colormap */
-      TRACEMS2(cinfo, 1, JTRC_BMP_OS2_MAPPED, (int) biWidth, (int) biHeight);
-      break;
-    case 24:			/* RGB image */
-      TRACEMS2(cinfo, 1, JTRC_BMP_OS2, (int) biWidth, (int) biHeight);
-      break;
-    default:
-      ERREXIT(cinfo, JERR_BMP_BADDEPTH);
-      break;
-    }
-    break;
-  case 40:
-  case 64:
-    /* Decode Windows 3.x header (Microsoft calls this a BITMAPINFOHEADER) */
-    /* or OS/2 2.x header, which has additional fields that we ignore */
-    biWidth = GET_4B(bmpinfoheader,4);
-    biHeight = GET_4B(bmpinfoheader,8);
-    biPlanes = GET_2B(bmpinfoheader,12);
-    source->bits_per_pixel = (int) GET_2B(bmpinfoheader,14);
-    biCompression = GET_4B(bmpinfoheader,16);
-    biXPelsPerMeter = GET_4B(bmpinfoheader,24);
-    biYPelsPerMeter = GET_4B(bmpinfoheader,28);
-    biClrUsed = GET_4B(bmpinfoheader,32);
-    /* biSizeImage, biClrImportant fields are ignored */
-
-    switch (source->bits_per_pixel) {
-    case 8:			/* colormapped image */
-      mapentrysize = 4;		/* Windows uses RGBQUAD colormap */
-      TRACEMS2(cinfo, 1, JTRC_BMP_MAPPED, (int) biWidth, (int) biHeight);
-      break;
-    case 24:			/* RGB image */
-      TRACEMS2(cinfo, 1, JTRC_BMP, (int) biWidth, (int) biHeight);
-      break;
-    case 32:			/* RGB image + Alpha channel */
-      TRACEMS2(cinfo, 1, JTRC_BMP, (int) biWidth, (int) biHeight);
-      break;
-    default:
-      ERREXIT(cinfo, JERR_BMP_BADDEPTH);
-      break;
-    }
-    if (biCompression != 0)
-      ERREXIT(cinfo, JERR_BMP_COMPRESSED);
-
-    if (biXPelsPerMeter > 0 && biYPelsPerMeter > 0) {
-      /* Set JFIF density parameters from the BMP data */
-      cinfo->X_density = (UINT16) (biXPelsPerMeter/100); /* 100 cm per meter */
-      cinfo->Y_density = (UINT16) (biYPelsPerMeter/100);
-      cinfo->density_unit = 2;	/* dots/cm */
-    }
-    break;
-  default:
-    ERREXIT(cinfo, JERR_BMP_BADHEADER);
-    return;
-  }
-
-  if (biWidth <= 0 || biHeight <= 0)
-    ERREXIT(cinfo, JERR_BMP_EMPTY);
-  if (biPlanes != 1)
-    ERREXIT(cinfo, JERR_BMP_BADPLANES);
-
-  /* Compute distance to bitmap data --- will adjust for colormap below */
-  bPad = bfOffBits - (headerSize + 14);
-
-  /* Read the colormap, if any */
-  if (mapentrysize > 0) {
-    if (biClrUsed <= 0)
-      biClrUsed = 256;		/* assume it's 256 */
-    else if (biClrUsed > 256)
-      ERREXIT(cinfo, JERR_BMP_BADCMAP);
-    /* Allocate space to store the colormap */
-    source->colormap = (*cinfo->mem->alloc_sarray)
-      ((j_common_ptr) cinfo, JPOOL_IMAGE,
-       (JDIMENSION) biClrUsed, (JDIMENSION) 3);
-    /* and read it from the file */
-    read_colormap(source, (int) biClrUsed, mapentrysize);
-    /* account for size of colormap */
-    bPad -= biClrUsed * mapentrysize;
-  }
-
-  /* Skip any remaining pad bytes */
-  if (bPad < 0)			/* incorrect bfOffBits value? */
-    ERREXIT(cinfo, JERR_BMP_BADHEADER);
-  while (--bPad >= 0) {
-    (void) read_byte(source);
-  }
-
-  /* Compute row width in file, including padding to 4-byte boundary */
-  if (source->bits_per_pixel == 24)
-    row_width = (JDIMENSION) (biWidth * 3);
-  else if (source->bits_per_pixel == 32)
-    row_width = (JDIMENSION) (biWidth * 4);
-  else
-    row_width = (JDIMENSION) biWidth;
-  while ((row_width & 3) != 0) row_width++;
-  source->row_width = row_width;
-
-  /* Allocate space for inversion array, prepare for preload pass */
-  source->whole_image = (*cinfo->mem->request_virt_sarray)
-    ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE,
-     row_width, (JDIMENSION) biHeight, (JDIMENSION) 1);
-  source->pub.get_pixel_rows = preload_image;
-  if (cinfo->progress != NULL) {
-    cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress;
-    progress->total_extra_passes++; /* count file input as separate pass */
-  }
-
-  /* Allocate one-row buffer for returned data */
-  source->pub.buffer = (*cinfo->mem->alloc_sarray)
-    ((j_common_ptr) cinfo, JPOOL_IMAGE,
-     (JDIMENSION) (biWidth * 3), (JDIMENSION) 1);
-  source->pub.buffer_height = 1;
-
-  cinfo->in_color_space = JCS_RGB;
-  cinfo->input_components = 3;
-  cinfo->data_precision = 8;
-  cinfo->image_width = (JDIMENSION) biWidth;
-  cinfo->image_height = (JDIMENSION) biHeight;
-}
-
-
-/*
- * Finish up at the end of the file.
- */
-
-METHODDEF(void)
-finish_input_bmp (j_compress_ptr cinfo, cjpeg_source_ptr sinfo)
-{
-  /* no work */
-}
-
-
-/*
- * The module selection routine for BMP format input.
- */
-
-GLOBAL(cjpeg_source_ptr)
-jinit_read_bmp (j_compress_ptr cinfo)
-{
-  bmp_source_ptr source;
-
-  /* Create module interface object */
-  source = (bmp_source_ptr)
-      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				  SIZEOF(bmp_source_struct));
-  source->cinfo = cinfo;	/* make back link for subroutines */
-  /* Fill in method ptrs, except get_pixel_rows which start_input sets */
-  source->pub.start_input = start_input_bmp;
-  source->pub.finish_input = finish_input_bmp;
-
-  return (cjpeg_source_ptr) source;
-}
-
-#endif /* BMP_SUPPORTED */