noone needs this anymore

git-svn-id: svn://svn.oetiker.ch/rrdtool/branches/1.2/program@888 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/src/gifsize.c b/src/gifsize.c
deleted file mode 100644 (file)
index 76c0c82..0000000
--- a/src/gifsize.c
+++ /dev/null
@@ -1,196 +0,0 @@
-/****************************************************************************
- * RRDtool 1.2.15  Copyright by Tobi Oetiker, 1997-2006
- ****************************************************************************
- * gifsize.c  provides the function gifsize which determines the size of a gif
- ****************************************************************************/
-
-/* This is built from code originally created by:                        */
-
-/* +-------------------------------------------------------------------+ */
-/* | Copyright 1990, 1991, 1993, David Koblas.  (koblas@netcom.com)    | */
-/* |   Permission to use, copy, modify, and distribute this software   | */
-/* |   and its documentation for any purpose and without fee is hereby | */
-/* |   granted, provided that the above copyright notice appear in all | */
-/* |   copies and that both that copyright notice and this permission  | */
-/* |   notice appear in supporting documentation.  This software is    | */
-/* |   provided "as is" without express or implied warranty.           | */
-/* +-------------------------------------------------------------------+ */
-
-
-#include <stdio.h>
-#include <math.h>
-#include <string.h>
-#include <stdlib.h>
-
-
-#define MAXCOLORMAPSIZE     256
-
-#define TRUE                1
-#define FALSE               0
-
-#define CM_RED              0
-#define CM_GREEN            1
-#define CM_BLUE             2
-
-
-#define LOCALCOLORMAP       0x80
-#define BitSet(byte, bit)   (((byte) & (bit)) == (bit))
-
-#define ReadOK(file,buffer,len) (fread(buffer, len, 1, file) != 0)
-
-#define LM_to_uint(a,b)     (((b)<<8)|(a))
-
-
-static struct {
-       int     transparent;
-       int     delayTime;
-       int     inputFlag;
-       int     disposal;
-} Gif89 = { -1, -1, -1, 0 };
-
-static int ReadColorMap (FILE *fd, int number, unsigned char (*buffer)[256]);
-static int DoExtension (FILE *fd, int label, int *Transparent);
-static int GetDataBlock (FILE *fd, unsigned char *buf);
-
-int ZeroDataBlock;
-
-int
-GifSize(FILE *fd, long *width, long *height)
-{
-       int imageNumber;
-       int BitPixel;
-       int ColorResolution;
-       int Background;
-       int AspectRatio;
-       int Transparent = (-1);
-       unsigned char   buf[16];
-       unsigned char   c;
-       unsigned char   ColorMap[3][MAXCOLORMAPSIZE];
-       int             imageCount = 0;
-       char            version[4];
-       ZeroDataBlock = FALSE;
-
-       imageNumber = 1;
-       if (! ReadOK(fd,buf,6)) {
-               return 0;
-       }
-       if (strncmp((char *)buf,"GIF",3) != 0) {
-               return 0;
-       }
-       strncpy(version, (char *)buf + 3, 3);
-       version[3] = '\0';
-
-       if ((strcmp(version, "87a") != 0) && (strcmp(version, "89a") != 0)) {
-               return 0;
-       }
-       if (! ReadOK(fd,buf,7)) {
-               return 0;
-       }
-       BitPixel        = 2<<(buf[4]&0x07);
-       ColorResolution = (int) (((buf[4]&0x70)>>3)+1);
-       Background      = buf[5];
-       AspectRatio     = buf[6];
-
-       if (BitSet(buf[4], LOCALCOLORMAP)) {    /* Global Colormap */
-               if (ReadColorMap(fd, BitPixel, ColorMap)) {
-                       return 0;
-               }
-       }
-       for (;;) {
-               if (! ReadOK(fd,&c,1)) {
-                       return 0;
-               }
-               if (c == ';') {         /* GIF terminator */
-                       if (imageCount < imageNumber) {
-                               return 0;
-                       }
-               }
-
-               if (c == '!') {         /* Extension */
-                       if (! ReadOK(fd,&c,1)) {
-                               return 0;
-                       }
-                       DoExtension(fd, c, &Transparent);
-                       continue;
-               }
-
-               if (c != ',') {         /* Not a valid start character */
-                       continue;
-               }
-
-               ++imageCount;
-
-               if (! ReadOK(fd,buf,9)) {
-                      return 0;
-               }
-
-               (*width) = LM_to_uint(buf[4],buf[5]);
-               (*height) = LM_to_uint(buf[6],buf[7]);
-              return 1;
-       }
-}
-
-static int
-ReadColorMap(FILE *fd, int number, unsigned char (*buffer)[256])
-{
-       int             i;
-       unsigned char   rgb[3];
-
-
-       for (i = 0; i < number; ++i) {
-               if (! ReadOK(fd, rgb, sizeof(rgb))) {
-                       return TRUE;
-               }
-               buffer[CM_RED][i] = rgb[0] ;
-               buffer[CM_GREEN][i] = rgb[1] ;
-               buffer[CM_BLUE][i] = rgb[2] ;
-       }
-
-
-       return FALSE;
-}
-
-static int
-DoExtension(FILE *fd, int label, int *Transparent)
-{
-       static unsigned char     buf[256];
-
-       switch (label) {
-       case 0xf9:              /* Graphic Control Extension */
-               (void) GetDataBlock(fd, (unsigned char*) buf);
-               Gif89.disposal    = (buf[0] >> 2) & 0x7;
-               Gif89.inputFlag   = (buf[0] >> 1) & 0x1;
-               Gif89.delayTime   = LM_to_uint(buf[1],buf[2]);
-               if ((buf[0] & 0x1) != 0)
-                       *Transparent = buf[3];
-
-               while (GetDataBlock(fd, (unsigned char*) buf) != 0)
-                       ;
-               return FALSE;
-       default:
-               break;
-       }
-       while (GetDataBlock(fd, (unsigned char*) buf) != 0)
-               ;
-
-       return FALSE;
-}
-
-static int
-GetDataBlock(FILE *fd, unsigned char *buf)
-{
-       unsigned char   count;
-
-       if (! ReadOK(fd,&count,1)) {
-               return -1;
-       }
-
-       ZeroDataBlock = count == 0;
-
-       if ((count != 0) && (! ReadOK(fd, buf, count))) {
-               return -1;
-       }
-
-       return count;
-}
-