diff options
Diffstat (limited to 'giflib-4.1.6/util/giftext.c')
| -rw-r--r-- | giflib-4.1.6/util/giftext.c | 486 |
1 files changed, 0 insertions, 486 deletions
diff --git a/giflib-4.1.6/util/giftext.c b/giflib-4.1.6/util/giftext.c deleted file mode 100644 index 07afff1..0000000 --- a/giflib-4.1.6/util/giftext.c +++ /dev/null @@ -1,486 +0,0 @@ -/***************************************************************************** -* "Gif-Lib" - Yet another gif library. * -* * -* Written by: Gershon Elber Ver 0.1, Jun. 1989 * -****************************************************************************** -* Program to dump GIF file content as TEXT information * -* Options: * -* -q : quiet printing mode. * -* -c : include the color maps as well. * -* -e : include encoded information packed as bytes as well. * -* -z : include encoded information (12bits) codes as result from the zl alg. * -* -p : dump pixel information instead of encoded information. * -* -r : same as -p but dump one pixel as one byte in binary form with no * -* other information. This will create a file of size Width by Height. * -* -h : on-line help. * -****************************************************************************** -* History: * -* 28 Jun 89 - Version 1.0 by Gershon Elber. * -* 21 Dec 89 - Fix segmentation fault problem in PrintCodeBlock (Version 1.1) * -* 25 Dec 89 - Add the -r flag for raw output. * -*****************************************************************************/ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#ifdef __MSDOS__ -#include <stdlib.h> -#include <alloc.h> -#include <conio.h> -#include <io.h> -#endif /* __MSDOS__ */ - -#ifndef __MSDOS__ -#include <stdlib.h> -#endif -#include <stdio.h> -#include <ctype.h> -#include <fcntl.h> -#include "gif_lib.h" -#include "getarg.h" - -#define PROGRAM_NAME "GifText" - -#define MAKE_PRINTABLE(c) (isprint(c) ? (c) : ' ') - -#ifdef __MSDOS__ -extern unsigned int - _stklen = 16384; /* Increase default stack size. */ -#endif /* __MSDOS__ */ - -#ifdef SYSV -static char *VersionStr = - "Gif toolkit module,\t\tGershon Elber\n\ - (C) Copyright 1989 Gershon Elber.\n"; -static char - *CtrlStr = "GifText q%- c%- e%- z%- p%- r%- h%- GifFile!*s"; -#else -static char - *VersionStr = - PROGRAM_NAME - GIF_LIB_VERSION - " Gershon Elber, " - __DATE__ ", " __TIME__ "\n" - "(C) Copyright 1989 Gershon Elber.\n"; -static char - *CtrlStr = - PROGRAM_NAME - " q%- c%- e%- z%- p%- r%- h%- GifFile!*s"; -#endif /* SYSV */ - -static void PrintCodeBlock(GifFileType *GifFile, GifByteType *CodeBlock, int Reset); -static void PrintPixelBlock(GifByteType *PixelBlock, int Len, int Reset); -static void PrintExtBlock(GifByteType *Extension, int Reset); -static void PrintLZCodes(GifFileType *GifFile); - -/****************************************************************************** -* Interpret the command line and scan the given GIF file. * -******************************************************************************/ -int main(int argc, char **argv) -{ - int i, j, ExtCode, CodeSize, Error, NumFiles, Len, - ColorMapFlag = FALSE, EncodedFlag = FALSE, LZCodesFlag = FALSE, - PixelFlag = FALSE, HelpFlag = FALSE, RawFlag = FALSE, ImageNum = 1; - char *GifFileName, **FileName = NULL; - GifPixelType *Line; - GifRecordType RecordType; - GifByteType *CodeBlock, *Extension; - GifFileType *GifFile; - - if ((Error = GAGetArgs(argc, argv, CtrlStr, - &GifQuietPrint, &ColorMapFlag, &EncodedFlag, - &LZCodesFlag, &PixelFlag, &RawFlag, &HelpFlag, - &NumFiles, &FileName)) != FALSE || - (NumFiles > 1 && !HelpFlag)) { - if (Error) - GAPrintErrMsg(Error); - else if (NumFiles > 1) - GIF_MESSAGE("Error in command line parsing - one GIF file please."); - GAPrintHowTo(CtrlStr); - exit(EXIT_FAILURE); - } - - if (HelpFlag) { - fprintf(stderr, VersionStr); - GAPrintHowTo(CtrlStr); - exit(EXIT_SUCCESS); - } - - if (NumFiles == 1) { - GifFileName = *FileName; - if ((GifFile = DGifOpenFileName(*FileName)) == NULL) { - PrintGifError(); - exit(EXIT_FAILURE); - } - } - else { - /* Use the stdin instead: */ - GifFileName = "Stdin"; - if ((GifFile = DGifOpenFileHandle(0)) == NULL) { - PrintGifError(); - exit(EXIT_FAILURE); - } - } - - /* Because we write binary data - make sure no text will be written. */ - if (RawFlag) { - ColorMapFlag = EncodedFlag = LZCodesFlag = PixelFlag = FALSE; -#ifdef __MSDOS__ - setmode(1, O_BINARY); /* Make sure it is in binary mode. */ -#endif /* __MSDOS__ */ - } - else { - printf("\n%s:\n\n\tScreen Size - Width = %d, Height = %d.\n", - GifFileName, GifFile->SWidth, GifFile->SHeight); - printf("\tColorResolution = %d, BitsPerPixel = %d, BackGround = %d.\n", - GifFile->SColorResolution, - GifFile->SColorMap ? GifFile->SColorMap->BitsPerPixel : 0, - GifFile->SBackGroundColor); - if (GifFile->SColorMap) - printf("\tHas Global Color Map.\n\n"); - else - printf("\tNo Global Color Map.\n\n"); - if (ColorMapFlag && GifFile->SColorMap) { - printf("\tGlobal Color Map:\n"); - Len = GifFile->SColorMap->ColorCount; - for (i = 0; i < Len; i+=4) { - for (j = 0; j < 4 && j < Len; j++) { - printf("%3d: %02xh %02xh %02xh ", i + j, - GifFile->SColorMap->Colors[i + j].Red, - GifFile->SColorMap->Colors[i + j].Green, - GifFile->SColorMap->Colors[i + j].Blue); - } - printf("\n"); - } - } - } - - do { - if (DGifGetRecordType(GifFile, &RecordType) == GIF_ERROR) { - PrintGifError(); - exit(EXIT_FAILURE); - } - switch (RecordType) { - case IMAGE_DESC_RECORD_TYPE: - if (DGifGetImageDesc(GifFile) == GIF_ERROR) { - PrintGifError(); - exit(EXIT_FAILURE); - } - if (!RawFlag) { - printf("\nImage #%d:\n\n\tImage Size - Left = %d, Top = %d, Width = %d, Height = %d.\n", - ImageNum++, GifFile->Image.Left, GifFile->Image.Top, - GifFile->Image.Width, GifFile->Image.Height); - printf("\tImage is %s", - GifFile->Image.Interlace ? "Interlaced" : - "Non Interlaced"); - if (GifFile->Image.ColorMap != NULL) - printf(", BitsPerPixel = %d.\n", - GifFile->Image.ColorMap->BitsPerPixel); - else - printf(".\n"); - if (GifFile->Image.ColorMap) - printf("\tImage Has Color Map.\n"); - else - printf("\tNo Image Color Map.\n"); - if (ColorMapFlag && GifFile->Image.ColorMap) { - Len = 1 << GifFile->Image.ColorMap->BitsPerPixel; - for (i = 0; i < Len; i+=4) { - for (j = 0; j < 4 && j < Len; j++) { - printf("%3d: %02xh %02xh %02xh ", i + j, - GifFile->Image.ColorMap->Colors[i + j].Red, - GifFile->Image.ColorMap->Colors[i + j].Green, - GifFile->Image.ColorMap->Colors[i + j].Blue); - } - printf("\n"); - } - } - } - - if (EncodedFlag) { - if (DGifGetCode(GifFile, &CodeSize, &CodeBlock) == GIF_ERROR) { - PrintGifError(); - exit(EXIT_FAILURE); - } - printf("\nImage LZ compressed Codes (Code Size = %d):\n", - CodeSize); - PrintCodeBlock(GifFile, CodeBlock, TRUE); - while (CodeBlock != NULL) { - if (DGifGetCodeNext(GifFile, &CodeBlock) == GIF_ERROR) { - PrintGifError(); - exit(EXIT_FAILURE); - } - PrintCodeBlock(GifFile, CodeBlock, FALSE); - } - } - else if (LZCodesFlag) { - PrintLZCodes(GifFile); - } - else if (PixelFlag) { - Line = (GifPixelType *) malloc(GifFile->Image.Width * - sizeof(GifPixelType)); - for (i = 0; i < GifFile->Image.Height; i++) { - if (DGifGetLine(GifFile, Line, GifFile->Image.Width) - == GIF_ERROR) { - PrintGifError(); - exit(EXIT_FAILURE); - } - PrintPixelBlock(Line, GifFile->Image.Width, i == 0); - } - PrintPixelBlock(NULL, GifFile->Image.Width, FALSE); - free((char *) Line); - } - else if (RawFlag) { - Line = (GifPixelType *) malloc(GifFile->Image.Width * - sizeof(GifPixelType)); - for (i = 0; i < GifFile->Image.Height; i++) { - if (DGifGetLine(GifFile, Line, GifFile->Image.Width) - == GIF_ERROR) { - PrintGifError(); - exit(EXIT_FAILURE); - } - fwrite(Line, 1, GifFile->Image.Width, stdout); - } - free((char *) Line); - } - else { - /* Skip the image: */ - if (DGifGetCode(GifFile, &CodeSize, &CodeBlock) == GIF_ERROR) { - PrintGifError(); - exit(EXIT_FAILURE); - } - while (CodeBlock != NULL) { - if (DGifGetCodeNext(GifFile, &CodeBlock) == GIF_ERROR) { - PrintGifError(); - exit(EXIT_FAILURE); - } - } - - } - break; - case EXTENSION_RECORD_TYPE: - if (DGifGetExtension(GifFile, &ExtCode, &Extension) == GIF_ERROR) { - PrintGifError(); - exit(EXIT_FAILURE); - } - if (!RawFlag) { - putchar('\n'); - switch (ExtCode) - { - case COMMENT_EXT_FUNC_CODE: - printf("GIF89 comment"); - break; - case GRAPHICS_EXT_FUNC_CODE: - printf("GIF89 graphics control"); - break; - case PLAINTEXT_EXT_FUNC_CODE: - printf("GIF89 plaintext"); - break; - case APPLICATION_EXT_FUNC_CODE: - printf("GIF89 application block"); - break; - default: - printf("Extension record of unknown type"); - break; - } - printf(" (Ext Code = %d [%c]):\n", - ExtCode, MAKE_PRINTABLE(ExtCode)); - PrintExtBlock(Extension, TRUE); - } - for (;;) { - if (DGifGetExtensionNext(GifFile, &Extension) == GIF_ERROR) { - PrintGifError(); - exit(EXIT_FAILURE); - } - if (Extension == NULL) - break; - PrintExtBlock(Extension, FALSE); - } - break; - case TERMINATE_RECORD_TYPE: - break; - default: /* Should be traps by DGifGetRecordType */ - break; - } - } - while (RecordType != TERMINATE_RECORD_TYPE); - - if (DGifCloseFile(GifFile) == GIF_ERROR) { - PrintGifError(); - exit(EXIT_FAILURE); - } - - if (!RawFlag) printf("\nGif file terminated normally.\n"); - - return 0; -} - -/****************************************************************************** -* Print the given CodeBlock - a string in pascal notation (size in first * -* place). Save local information so printing can be performed continuously, * -* or reset to start state if Reset. If CodeBlock is NULL, output is flushed * -******************************************************************************/ -static void PrintCodeBlock(GifFileType *GifFile, GifByteType *CodeBlock, int Reset) -{ - static int CrntPlace = 0, Print = TRUE; - static long CodeCount = 0; - int i, Percent, Len; - long NumBytes; - - if (Reset || CodeBlock == NULL) { - if (CodeBlock == NULL) { - if (CrntPlace > 0) { - if (Print) printf("\n"); - CodeCount += CrntPlace - 16; - } - if (GifFile->Image.ColorMap) - NumBytes = ((((long) GifFile->Image.Width) * GifFile->Image.Height) - * GifFile->Image.ColorMap->BitsPerPixel) / 8; - else - NumBytes = ((((long) GifFile->Image.Width) * GifFile->Image.Height) - * GifFile->SColorMap->BitsPerPixel) / 8; - Percent = 100 * CodeCount / NumBytes; - printf("\nCompression ratio: %ld/%ld (%d%%).\n", - CodeCount, NumBytes, Percent); - return; - } - CrntPlace = 0; - CodeCount = 0; - Print = TRUE; - } - - Len = CodeBlock[0]; - for (i = 1; i <= Len; i++) { - if (CrntPlace == 0) { - if (Print) printf("\n%05lxh: ", CodeCount); - CodeCount += 16; - } -#ifdef __MSDOS__ - if (kbhit() && ((c = getch()) == 'q' || c == 'Q')) Print = FALSE; -#endif /* __MSDOS__ */ - if (Print) printf(" %02xh", CodeBlock[i]); - if (++CrntPlace >= 16) CrntPlace = 0; - } -} - -/****************************************************************************** -* Print the given Extension - a string in pascal notation (size in first * -* place). Save local information so printing can be performed continuously, * -* or reset to start state if Reset. If Extension is NULL, output is flushed * -******************************************************************************/ -static void PrintExtBlock(GifByteType *Extension, int Reset) -{ - static int CrntPlace = 0, Print = TRUE; - static long ExtCount = 0; - static char HexForm[49], AsciiForm[17]; - int i, Len; - - if (Reset || Extension == NULL) { - if (Extension == NULL) { - if (CrntPlace > 0) { - HexForm[CrntPlace * 3] = 0; - AsciiForm[CrntPlace] = 0; - if (Print) printf("\n%05lx: %-49s %-17s\n", - ExtCount, HexForm, AsciiForm); - return; - } - else if (Print) - printf("\n"); - } - CrntPlace = 0; - ExtCount = 0; - Print = TRUE; - } - - if (!Print) return; - - Len = Extension[0]; - for (i = 1; i <= Len; i++) { - sprintf(&HexForm[CrntPlace * 3], " %02x", Extension[i]); - sprintf(&AsciiForm[CrntPlace], "%c", MAKE_PRINTABLE(Extension[i])); -#ifdef __MSDOS__ - if (kbhit() && ((c = getch()) == 'q' || c == 'Q')) Print = FALSE; -#endif /* __MSDOS__ */ - if (++CrntPlace == 16) { - HexForm[CrntPlace * 3] = 0; - AsciiForm[CrntPlace] = 0; - if (Print) printf("\n%05lx: %-49s %-17s", - ExtCount, HexForm, AsciiForm); - ExtCount += 16; - CrntPlace = 0; - } - } -} - -/****************************************************************************** -* Print the given PixelBlock of length Len. * -* Save local information so printing can be performed continuously, * -* or reset to start state if Reset. If PixelBlock is NULL, output is flushed * -******************************************************************************/ -static void PrintPixelBlock(GifByteType *PixelBlock, int Len, int Reset) -{ - static int CrntPlace = 0, Print = TRUE; - static long ExtCount = 0; - static char HexForm[49], AsciiForm[17]; - int i; - - if (Reset || PixelBlock == NULL) { - if (PixelBlock == NULL) { - if (CrntPlace > 0) { - HexForm[CrntPlace * 3] = 0; - AsciiForm[CrntPlace] = 0; - if (Print) printf("\n%05lx: %-49s %-17s\n", - ExtCount, HexForm, AsciiForm); - } - else if (Print) - printf("\n"); - } - CrntPlace = 0; - ExtCount = 0; - Print = TRUE; - if (PixelBlock == NULL) return; - } - - if (!Print) return; - - for (i = 0; i < Len; i++) { - sprintf(&HexForm[CrntPlace * 3], " %02x", PixelBlock[i]); - sprintf(&AsciiForm[CrntPlace], "%c", MAKE_PRINTABLE(PixelBlock[i])); -#ifdef __MSDOS__ - if (kbhit() && ((c = getch()) == 'q' || c == 'Q')) Print = FALSE; -#endif /* __MSDOS__ */ - if (++CrntPlace == 16) { - HexForm[CrntPlace * 3] = 0; - AsciiForm[CrntPlace] = 0; - if (Print) printf("\n%05lx: %-49s %-17s", - ExtCount, HexForm, AsciiForm); - ExtCount += 16; - CrntPlace = 0; - } - } -} - -/****************************************************************************** -* Print the image as LZ codes (each 12bits), until EOF marker is reached. * -******************************************************************************/ -static void PrintLZCodes(GifFileType *GifFile) -{ - int Code, Print = TRUE, CrntPlace = 0; - long CodeCount = 0; - - do { - if (Print && CrntPlace == 0) printf("\n%05lx:", CodeCount); - if (DGifGetLZCodes(GifFile, &Code) == GIF_ERROR) { - PrintGifError(); - exit(EXIT_FAILURE); - } - if (Print && Code >= 0) - printf(" %03x", Code); /* EOF Code is returned as -1. */ - CodeCount++; - if (++CrntPlace >= 16) CrntPlace = 0; -#ifdef __MSDOS__ - if (kbhit() && ((c = getch()) == 'q' || c == 'Q')) Print = FALSE; -#endif /* __MSDOS__ */ - } - while (Code >= 0); -} |