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Diffstat (limited to 'giflib-4.1.6/util/gifwedge.c')
| -rw-r--r-- | giflib-4.1.6/util/gifwedge.c | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/giflib-4.1.6/util/gifwedge.c b/giflib-4.1.6/util/gifwedge.c deleted file mode 100644 index c42c5fe..0000000 --- a/giflib-4.1.6/util/gifwedge.c +++ /dev/null @@ -1,176 +0,0 @@ -/***************************************************************************** -* "Gif-Lib" - Yet another gif library. * -* * -* Written by: Gershon Elber Ver 0.1, Jul. 1989 * -****************************************************************************** -* Program to create a test image of White and Red/Green/Blue levels for * -* test purposes. The Primary (RGB) and Secondary (YCM) are also displayed. * -* background. * -* Options: * -* -q : quiet printing mode. * -* -s Width Height : set image size. * -* -l levels : number of color levels. * -* -h : on-line help. * -****************************************************************************** -* History: * -* 4 Jan 90 - Version 1.0 by Gershon Elber. * -*****************************************************************************/ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#ifdef __MSDOS__ -#include <stdlib.h> -#include <alloc.h> -#endif /* __MSDOS__ */ - -#ifndef __MSDOS__ -#include <stdlib.h> -#endif -#include <stdio.h> -#include <ctype.h> -#include <string.h> -#include "gif_lib.h" -#include "getarg.h" - -#define PROGRAM_NAME "GifWedge" - -#define DEFAULT_WIDTH 640 -#define DEFAULT_HEIGHT 350 - -#define DEFAULT_NUM_LEVELS 16 /* Number of colors to gen the image. */ - -#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 = "GifWedge q%- l%-#Lvls!d s%-Width|Height!d!d h%-"; -#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%- l%-#Lvls!d s%-Width|Height!d!d h%-"; -#endif /* SYSV */ - -static int - NumLevels = DEFAULT_NUM_LEVELS, - ImageWidth = DEFAULT_WIDTH, - ImageHeight = DEFAULT_HEIGHT; - -static void QuitGifError(GifFileType *GifFile); - -/****************************************************************************** -* Interpret the command line and scan the given GIF file. * -******************************************************************************/ -int main(int argc, char **argv) -{ - int i, j, l, c, Error, LevelStep, LogNumLevels, - Count = 0, LevelsFlag = FALSE, SizeFlag = FALSE, HelpFlag = FALSE; - GifRowType Line; - ColorMapObject *ColorMap; - GifFileType *GifFile; - - if ((Error = GAGetArgs(argc, argv, CtrlStr, - &GifQuietPrint, &LevelsFlag, &NumLevels, - &SizeFlag, &ImageWidth, &ImageHeight, - &HelpFlag)) != FALSE) { - GAPrintErrMsg(Error); - GAPrintHowTo(CtrlStr); - exit(EXIT_FAILURE); - } - - if (HelpFlag) { - fprintf(stderr, VersionStr); - GAPrintHowTo(CtrlStr); - exit(EXIT_SUCCESS); - } - - /* Make sure the number of levels is power of 2 (up to 32 levels.). */ - for (i = 1; i < 6; i++) if (NumLevels == (1 << i)) break; - if (i == 6) GIF_EXIT("#Lvls (-l option) is not power of 2 up to 32."); - LogNumLevels = i + 3; /* Multiple by 8 (see below). */ - LevelStep = 256 / NumLevels; - - /* Make sure the image dimension is a multiple of NumLevels horizontally */ - /* and 7 (White, Red, Green, Blue and Yellow Cyan Magenta) vertically. */ - ImageWidth = (ImageWidth / NumLevels) * NumLevels; - ImageHeight = (ImageHeight / 7) * 7; - - /* Open stdout for the output file: */ - if ((GifFile = EGifOpenFileHandle(1)) == NULL) - QuitGifError(GifFile); - - /* Dump out screen description with given size and generated color map: */ - /* The color map has 7 NumLevels colors for White, Red, Green and then */ - /* The secondary colors Yellow Cyan and magenta. */ - if ((ColorMap = MakeMapObject(8 * NumLevels, NULL)) == NULL) - GIF_EXIT("Failed to allocate memory required, aborted."); - - for (i = 0; i < 8; i++) /* Set color map. */ - for (j = 0; j < NumLevels; j++) { - l = LevelStep * j; - c = i * NumLevels + j; - ColorMap->Colors[c].Red = (i == 0 || i == 1 || i == 4 || i == 6) * l; - ColorMap->Colors[c].Green = (i == 0 || i == 2 || i == 4 || i == 5) * l; - ColorMap->Colors[c].Blue = (i == 0 || i == 3 || i == 5 || i == 6) * l; - } - - if (EGifPutScreenDesc(GifFile, - ImageWidth, ImageHeight, LogNumLevels, 0, ColorMap) - == GIF_ERROR) - QuitGifError(GifFile); - - /* Dump out the image descriptor: */ - if (EGifPutImageDesc(GifFile, - 0, 0, ImageWidth, ImageHeight, FALSE, NULL) == GIF_ERROR) - QuitGifError(GifFile); - - GifQprintf("\n%s: Image 1 at (%d, %d) [%dx%d]: ", - PROGRAM_NAME, GifFile->Image.Left, GifFile->Image.Top, - GifFile->Image.Width, GifFile->Image.Height); - - /* Allocate one scan line to be used for all image. */ - if ((Line = (GifRowType) malloc(sizeof(GifPixelType) * ImageWidth)) == NULL) - GIF_EXIT("Failed to allocate memory required, aborted."); - - /* Dump the pixels: */ - for (c = 0; c < 7; c++) { - for (i = 0, l = 0; i < NumLevels; i++) - for (j = 0; j < ImageWidth / NumLevels; j++) - Line[l++] = i + NumLevels * c; - for (i = 0; i < ImageHeight / 7; i++) { - if (EGifPutLine(GifFile, Line, ImageWidth) == GIF_ERROR) - QuitGifError(GifFile); - GifQprintf("\b\b\b\b%-4d", Count++); - } - } - - if (EGifCloseFile(GifFile) == GIF_ERROR) - QuitGifError(GifFile); - - return 0; -} - -/****************************************************************************** -* Close output file (if open), and exit. * -******************************************************************************/ -static void QuitGifError(GifFileType *GifFile) -{ - PrintGifError(); - if (GifFile != NULL) DGifCloseFile(GifFile); - exit(EXIT_FAILURE); -} |