AdvaImg plugin folder renaming

git-svn-id: http://svn.miranda-ng.org/main/trunk@2801 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c

1 files changed, 480 insertions, 0 deletions

diff --git a/plugins/AdvaImg/src/LibJPEG/rdbmp.c b/plugins/AdvaImg/src/LibJPEG/rdbmp.c
new file mode 100644
index 0000000000..dfdf96ff5c
--- /dev/null
+++ b/plugins/AdvaImg/src/LibJPEG/rdbmp.c
@@ -0,0 +1,480 @@
+/*

+ * 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 */