AdvaImg plugin folder renaming

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

1 files changed, 583 insertions, 0 deletions

diff --git a/plugins/AdvaImg/src/LibJPEG/wrjpgcom.c b/plugins/AdvaImg/src/LibJPEG/wrjpgcom.c
new file mode 100644
index 0000000000..7d10ee66e8
--- /dev/null
+++ b/plugins/AdvaImg/src/LibJPEG/wrjpgcom.c
@@ -0,0 +1,583 @@
+/*

+ * wrjpgcom.c

+ *

+ * Copyright (C) 1994-1997, 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 a very simple stand-alone application that inserts

+ * user-supplied text as a COM (comment) marker in a JFIF file.

+ * This may be useful as an example of the minimum logic needed to parse

+ * JPEG markers.

+ */

+

+#define JPEG_CJPEG_DJPEG	/* to get the command-line config symbols */

+#include "jinclude.h"		/* get auto-config symbols, <stdio.h> */

+

+#ifndef HAVE_STDLIB_H		/* <stdlib.h> should declare malloc() */

+extern void * malloc ();

+#endif

+#include <ctype.h>		/* to declare isupper(), tolower() */

+#ifdef USE_SETMODE

+#include <fcntl.h>		/* to declare setmode()'s parameter macros */

+/* If you have setmode() but not <io.h>, just delete this line: */

+#include <io.h>			/* to declare setmode() */

+#endif

+

+#ifdef USE_CCOMMAND		/* command-line reader for Macintosh */

+#ifdef __MWERKS__

+#include <SIOUX.h>              /* Metrowerks needs this */

+#include <console.h>		/* ... and this */

+#endif

+#ifdef THINK_C

+#include <console.h>		/* Think declares it here */

+#endif

+#endif

+

+#ifdef DONT_USE_B_MODE		/* define mode parameters for fopen() */

+#define READ_BINARY	"r"

+#define WRITE_BINARY	"w"

+#else

+#ifdef VMS			/* VMS is very nonstandard */

+#define READ_BINARY	"rb", "ctx=stm"

+#define WRITE_BINARY	"wb", "ctx=stm"

+#else				/* standard ANSI-compliant case */

+#define READ_BINARY	"rb"

+#define WRITE_BINARY	"wb"

+#endif

+#endif

+

+#ifndef EXIT_FAILURE		/* define exit() codes if not provided */

+#define EXIT_FAILURE  1

+#endif

+#ifndef EXIT_SUCCESS

+#ifdef VMS

+#define EXIT_SUCCESS  1		/* VMS is very nonstandard */

+#else

+#define EXIT_SUCCESS  0

+#endif

+#endif

+

+/* Reduce this value if your malloc() can't allocate blocks up to 64K.

+ * On DOS, compiling in large model is usually a better solution.

+ */

+

+#ifndef MAX_COM_LENGTH

+#define MAX_COM_LENGTH 65000L	/* must be <= 65533 in any case */

+#endif

+

+

+/*

+ * These macros are used to read the input file and write the output file.

+ * To reuse this code in another application, you might need to change these.

+ */

+

+static FILE * infile;		/* input JPEG file */

+

+/* Return next input byte, or EOF if no more */

+#define NEXTBYTE()  getc(infile)

+

+static FILE * outfile;		/* output JPEG file */

+

+/* Emit an output byte */

+#define PUTBYTE(x)  putc((x), outfile)

+

+

+/* Error exit handler */

+#define ERREXIT(msg)  (fprintf(stderr, "%s\n", msg), exit(EXIT_FAILURE))

+

+

+/* Read one byte, testing for EOF */

+static int

+read_1_byte (void)

+{

+  int c;

+

+  c = NEXTBYTE();

+  if (c == EOF)

+    ERREXIT("Premature EOF in JPEG file");

+  return c;

+}

+

+/* Read 2 bytes, convert to unsigned int */

+/* All 2-byte quantities in JPEG markers are MSB first */

+static unsigned int

+read_2_bytes (void)

+{

+  int c1, c2;

+

+  c1 = NEXTBYTE();

+  if (c1 == EOF)

+    ERREXIT("Premature EOF in JPEG file");

+  c2 = NEXTBYTE();

+  if (c2 == EOF)

+    ERREXIT("Premature EOF in JPEG file");

+  return (((unsigned int) c1) << 8) + ((unsigned int) c2);

+}

+

+

+/* Routines to write data to output file */

+

+static void

+write_1_byte (int c)

+{

+  PUTBYTE(c);

+}

+

+static void

+write_2_bytes (unsigned int val)

+{

+  PUTBYTE((val >> 8) & 0xFF);

+  PUTBYTE(val & 0xFF);

+}

+

+static void

+write_marker (int marker)

+{

+  PUTBYTE(0xFF);

+  PUTBYTE(marker);

+}

+

+static void

+copy_rest_of_file (void)

+{

+  int c;

+

+  while ((c = NEXTBYTE()) != EOF)

+    PUTBYTE(c);

+}

+

+

+/*

+ * JPEG markers consist of one or more 0xFF bytes, followed by a marker

+ * code byte (which is not an FF).  Here are the marker codes of interest

+ * in this program.  (See jdmarker.c for a more complete list.)

+ */

+

+#define M_SOF0  0xC0		/* Start Of Frame N */

+#define M_SOF1  0xC1		/* N indicates which compression process */

+#define M_SOF2  0xC2		/* Only SOF0-SOF2 are now in common use */

+#define M_SOF3  0xC3

+#define M_SOF5  0xC5		/* NB: codes C4 and CC are NOT SOF markers */

+#define M_SOF6  0xC6

+#define M_SOF7  0xC7

+#define M_SOF9  0xC9

+#define M_SOF10 0xCA

+#define M_SOF11 0xCB

+#define M_SOF13 0xCD

+#define M_SOF14 0xCE

+#define M_SOF15 0xCF

+#define M_SOI   0xD8		/* Start Of Image (beginning of datastream) */

+#define M_EOI   0xD9		/* End Of Image (end of datastream) */

+#define M_SOS   0xDA		/* Start Of Scan (begins compressed data) */

+#define M_COM   0xFE		/* COMment */

+

+

+/*

+ * Find the next JPEG marker and return its marker code.

+ * We expect at least one FF byte, possibly more if the compressor used FFs

+ * to pad the file.  (Padding FFs will NOT be replicated in the output file.)

+ * There could also be non-FF garbage between markers.  The treatment of such

+ * garbage is unspecified; we choose to skip over it but emit a warning msg.

+ * NB: this routine must not be used after seeing SOS marker, since it will

+ * not deal correctly with FF/00 sequences in the compressed image data...

+ */

+

+static int

+next_marker (void)

+{

+  int c;

+  int discarded_bytes = 0;

+

+  /* Find 0xFF byte; count and skip any non-FFs. */

+  c = read_1_byte();

+  while (c != 0xFF) {

+    discarded_bytes++;

+    c = read_1_byte();

+  }

+  /* Get marker code byte, swallowing any duplicate FF bytes.  Extra FFs

+   * are legal as pad bytes, so don't count them in discarded_bytes.

+   */

+  do {

+    c = read_1_byte();

+  } while (c == 0xFF);

+

+  if (discarded_bytes != 0) {

+    fprintf(stderr, "Warning: garbage data found in JPEG file\n");

+  }

+

+  return c;

+}

+

+

+/*

+ * Read the initial marker, which should be SOI.

+ * For a JFIF file, the first two bytes of the file should be literally

+ * 0xFF M_SOI.  To be more general, we could use next_marker, but if the

+ * input file weren't actually JPEG at all, next_marker might read the whole

+ * file and then return a misleading error message...

+ */

+

+static int

+first_marker (void)

+{

+  int c1, c2;

+

+  c1 = NEXTBYTE();

+  c2 = NEXTBYTE();

+  if (c1 != 0xFF || c2 != M_SOI)

+    ERREXIT("Not a JPEG file");

+  return c2;

+}

+

+

+/*

+ * Most types of marker are followed by a variable-length parameter segment.

+ * This routine skips over the parameters for any marker we don't otherwise

+ * want to process.

+ * Note that we MUST skip the parameter segment explicitly in order not to

+ * be fooled by 0xFF bytes that might appear within the parameter segment;

+ * such bytes do NOT introduce new markers.

+ */

+

+static void

+copy_variable (void)

+/* Copy an unknown or uninteresting variable-length marker */

+{

+  unsigned int length;

+

+  /* Get the marker parameter length count */

+  length = read_2_bytes();

+  write_2_bytes(length);

+  /* Length includes itself, so must be at least 2 */

+  if (length < 2)

+    ERREXIT("Erroneous JPEG marker length");

+  length -= 2;

+  /* Skip over the remaining bytes */

+  while (length > 0) {

+    write_1_byte(read_1_byte());

+    length--;

+  }

+}

+

+static void

+skip_variable (void)

+/* Skip over an unknown or uninteresting variable-length marker */

+{

+  unsigned int length;

+

+  /* Get the marker parameter length count */

+  length = read_2_bytes();

+  /* Length includes itself, so must be at least 2 */

+  if (length < 2)

+    ERREXIT("Erroneous JPEG marker length");

+  length -= 2;

+  /* Skip over the remaining bytes */

+  while (length > 0) {

+    (void) read_1_byte();

+    length--;

+  }

+}

+

+

+/*

+ * Parse the marker stream until SOFn or EOI is seen;

+ * copy data to output, but discard COM markers unless keep_COM is true.

+ */

+

+static int

+scan_JPEG_header (int keep_COM)

+{

+  int marker;

+

+  /* Expect SOI at start of file */

+  if (first_marker() != M_SOI)

+    ERREXIT("Expected SOI marker first");

+  write_marker(M_SOI);

+

+  /* Scan miscellaneous markers until we reach SOFn. */

+  for (;;) {

+    marker = next_marker();

+    switch (marker) {

+      /* Note that marker codes 0xC4, 0xC8, 0xCC are not, and must not be,

+       * treated as SOFn.  C4 in particular is actually DHT.

+       */

+    case M_SOF0:		/* Baseline */

+    case M_SOF1:		/* Extended sequential, Huffman */

+    case M_SOF2:		/* Progressive, Huffman */

+    case M_SOF3:		/* Lossless, Huffman */

+    case M_SOF5:		/* Differential sequential, Huffman */

+    case M_SOF6:		/* Differential progressive, Huffman */

+    case M_SOF7:		/* Differential lossless, Huffman */

+    case M_SOF9:		/* Extended sequential, arithmetic */

+    case M_SOF10:		/* Progressive, arithmetic */

+    case M_SOF11:		/* Lossless, arithmetic */

+    case M_SOF13:		/* Differential sequential, arithmetic */

+    case M_SOF14:		/* Differential progressive, arithmetic */

+    case M_SOF15:		/* Differential lossless, arithmetic */

+      return marker;

+

+    case M_SOS:			/* should not see compressed data before SOF */

+      ERREXIT("SOS without prior SOFn");

+      break;

+

+    case M_EOI:			/* in case it's a tables-only JPEG stream */

+      return marker;

+

+    case M_COM:			/* Existing COM: conditionally discard */

+      if (keep_COM) {

+	write_marker(marker);

+	copy_variable();

+      } else {

+	skip_variable();

+      }

+      break;

+

+    default:			/* Anything else just gets copied */

+      write_marker(marker);

+      copy_variable();		/* we assume it has a parameter count... */

+      break;

+    }

+  } /* end loop */

+}

+

+

+/* Command line parsing code */

+

+static const char * progname;	/* program name for error messages */

+

+

+static void

+usage (void)

+/* complain about bad command line */

+{

+  fprintf(stderr, "wrjpgcom inserts a textual comment in a JPEG file.\n");

+  fprintf(stderr, "You can add to or replace any existing comment(s).\n");

+

+  fprintf(stderr, "Usage: %s [switches] ", progname);

+#ifdef TWO_FILE_COMMANDLINE

+  fprintf(stderr, "inputfile outputfile\n");

+#else

+  fprintf(stderr, "[inputfile]\n");

+#endif

+

+  fprintf(stderr, "Switches (names may be abbreviated):\n");

+  fprintf(stderr, "  -replace         Delete any existing comments\n");

+  fprintf(stderr, "  -comment \"text\"  Insert comment with given text\n");

+  fprintf(stderr, "  -cfile name      Read comment from named file\n");

+  fprintf(stderr, "Notice that you must put quotes around the comment text\n");

+  fprintf(stderr, "when you use -comment.\n");

+  fprintf(stderr, "If you do not give either -comment or -cfile on the command line,\n");

+  fprintf(stderr, "then the comment text is read from standard input.\n");

+  fprintf(stderr, "It can be multiple lines, up to %u characters total.\n",

+	  (unsigned int) MAX_COM_LENGTH);

+#ifndef TWO_FILE_COMMANDLINE

+  fprintf(stderr, "You must specify an input JPEG file name when supplying\n");

+  fprintf(stderr, "comment text from standard input.\n");

+#endif

+

+  exit(EXIT_FAILURE);

+}

+

+

+static int

+keymatch (char * arg, const char * keyword, int minchars)

+/* Case-insensitive matching of (possibly abbreviated) keyword switches. */

+/* keyword is the constant keyword (must be lower case already), */

+/* minchars is length of minimum legal abbreviation. */

+{

+  register int ca, ck;

+  register int nmatched = 0;

+

+  while ((ca = *arg++) != '\0') {

+    if ((ck = *keyword++) == '\0')

+      return 0;			/* arg longer than keyword, no good */

+    if (isupper(ca))		/* force arg to lcase (assume ck is already) */

+      ca = tolower(ca);

+    if (ca != ck)

+      return 0;			/* no good */

+    nmatched++;			/* count matched characters */

+  }

+  /* reached end of argument; fail if it's too short for unique abbrev */

+  if (nmatched < minchars)

+    return 0;

+  return 1;			/* A-OK */

+}

+

+

+/*

+ * The main program.

+ */

+

+int

+main (int argc, char **argv)

+{

+  int argn;

+  char * arg;

+  int keep_COM = 1;

+  char * comment_arg = NULL;

+  FILE * comment_file = NULL;

+  unsigned int comment_length = 0;

+  int marker;

+

+  /* On Mac, fetch a command line. */

+#ifdef USE_CCOMMAND

+  argc = ccommand(&argv);

+#endif

+

+  progname = argv[0];

+  if (progname == NULL || progname[0] == 0)

+    progname = "wrjpgcom";	/* in case C library doesn't provide it */

+

+  /* Parse switches, if any */

+  for (argn = 1; argn < argc; argn++) {

+    arg = argv[argn];

+    if (arg[0] != '-')

+      break;			/* not switch, must be file name */

+    arg++;			/* advance over '-' */

+    if (keymatch(arg, "replace", 1)) {

+      keep_COM = 0;

+    } else if (keymatch(arg, "cfile", 2)) {

+      if (++argn >= argc) usage();

+      if ((comment_file = fopen(argv[argn], "r")) == NULL) {

+	fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]);

+	exit(EXIT_FAILURE);

+      }

+    } else if (keymatch(arg, "comment", 1)) {

+      if (++argn >= argc) usage();

+      comment_arg = argv[argn];

+      /* If the comment text starts with '"', then we are probably running

+       * under MS-DOG and must parse out the quoted string ourselves.  Sigh.

+       */

+      if (comment_arg[0] == '"') {

+	comment_arg = (char *) malloc((size_t) MAX_COM_LENGTH);

+	if (comment_arg == NULL)

+	  ERREXIT("Insufficient memory");

+	strcpy(comment_arg, argv[argn]+1);

+	for (;;) {

+	  comment_length = (unsigned int) strlen(comment_arg);

+	  if (comment_length > 0 && comment_arg[comment_length-1] == '"') {

+	    comment_arg[comment_length-1] = '\0'; /* zap terminating quote */

+	    break;

+	  }

+	  if (++argn >= argc)

+	    ERREXIT("Missing ending quote mark");

+	  strcat(comment_arg, " ");

+	  strcat(comment_arg, argv[argn]);

+	}

+      }

+      comment_length = (unsigned int) strlen(comment_arg);

+    } else

+      usage();

+  }

+

+  /* Cannot use both -comment and -cfile. */

+  if (comment_arg != NULL && comment_file != NULL)

+    usage();

+  /* If there is neither -comment nor -cfile, we will read the comment text

+   * from stdin; in this case there MUST be an input JPEG file name.

+   */

+  if (comment_arg == NULL && comment_file == NULL && argn >= argc)

+    usage();

+

+  /* Open the input file. */

+  if (argn < argc) {

+    if ((infile = fopen(argv[argn], READ_BINARY)) == NULL) {

+      fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]);

+      exit(EXIT_FAILURE);

+    }

+  } else {

+    /* default input file is stdin */

+#ifdef USE_SETMODE		/* need to hack file mode? */

+    setmode(fileno(stdin), O_BINARY);

+#endif

+#ifdef USE_FDOPEN		/* need to re-open in binary mode? */

+    if ((infile = fdopen(fileno(stdin), READ_BINARY)) == NULL) {

+      fprintf(stderr, "%s: can't open stdin\n", progname);

+      exit(EXIT_FAILURE);

+    }

+#else

+    infile = stdin;

+#endif

+  }

+

+  /* Open the output file. */

+#ifdef TWO_FILE_COMMANDLINE

+  /* Must have explicit output file name */

+  if (argn != argc-2) {

+    fprintf(stderr, "%s: must name one input and one output file\n",

+	    progname);

+    usage();

+  }

+  if ((outfile = fopen(argv[argn+1], WRITE_BINARY)) == NULL) {

+    fprintf(stderr, "%s: can't open %s\n", progname, argv[argn+1]);

+    exit(EXIT_FAILURE);

+  }

+#else

+  /* Unix style: expect zero or one file name */

+  if (argn < argc-1) {

+    fprintf(stderr, "%s: only one input file\n", progname);

+    usage();

+  }

+  /* default output file is stdout */

+#ifdef USE_SETMODE		/* need to hack file mode? */

+  setmode(fileno(stdout), O_BINARY);

+#endif

+#ifdef USE_FDOPEN		/* need to re-open in binary mode? */

+  if ((outfile = fdopen(fileno(stdout), WRITE_BINARY)) == NULL) {

+    fprintf(stderr, "%s: can't open stdout\n", progname);

+    exit(EXIT_FAILURE);

+  }

+#else

+  outfile = stdout;

+#endif

+#endif /* TWO_FILE_COMMANDLINE */

+

+  /* Collect comment text from comment_file or stdin, if necessary */

+  if (comment_arg == NULL) {

+    FILE * src_file;

+    int c;

+

+    comment_arg = (char *) malloc((size_t) MAX_COM_LENGTH);

+    if (comment_arg == NULL)

+      ERREXIT("Insufficient memory");

+    comment_length = 0;

+    src_file = (comment_file != NULL ? comment_file : stdin);

+    while ((c = getc(src_file)) != EOF) {

+      if (comment_length >= (unsigned int) MAX_COM_LENGTH) {

+	fprintf(stderr, "Comment text may not exceed %u bytes\n",

+		(unsigned int) MAX_COM_LENGTH);

+	exit(EXIT_FAILURE);

+      }

+      comment_arg[comment_length++] = (char) c;

+    }

+    if (comment_file != NULL)

+      fclose(comment_file);

+  }

+

+  /* Copy JPEG headers until SOFn marker;

+   * we will insert the new comment marker just before SOFn.

+   * This (a) causes the new comment to appear after, rather than before,

+   * existing comments; and (b) ensures that comments come after any JFIF

+   * or JFXX markers, as required by the JFIF specification.

+   */

+  marker = scan_JPEG_header(keep_COM);

+  /* Insert the new COM marker, but only if nonempty text has been supplied */

+  if (comment_length > 0) {

+    write_marker(M_COM);

+    write_2_bytes(comment_length + 2);

+    while (comment_length > 0) {

+      write_1_byte(*comment_arg++);

+      comment_length--;

+    }

+  }

+  /* Duplicate the remainder of the source file.

+   * Note that any COM markers occuring after SOF will not be touched.

+   */

+  write_marker(marker);

+  copy_rest_of_file();

+

+  /* All done. */

+  exit(EXIT_SUCCESS);

+  return 0;			/* suppress no-return-value warnings */

+}