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-rw-r--r--giflib-4.1.6/util/gifcomb.c266
1 files changed, 0 insertions, 266 deletions
diff --git a/giflib-4.1.6/util/gifcomb.c b/giflib-4.1.6/util/gifcomb.c
deleted file mode 100644
index 9b81952..0000000
--- a/giflib-4.1.6/util/gifcomb.c
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@@ -1,266 +0,0 @@
-/*****************************************************************************
-* "Gif-Lib" - Yet another gif library. *
-* *
-* Written by: Gershon Elber Ver 0.1, Jul. 1989 *
-******************************************************************************
-* Program to combine 2 GIF images into single one, using optional mask GIF *
-* file. Result colormap will be the union of the two images colormaps. *
-* Both images should have exactly the same size, although they may be mapped *
-* differently on screen. Only First GIF screen descriptor info. is used. *
-* Options: *
-* -q : quiet printing mode. *
-* -m mask : optional boolean image, defines where second GIF should be used. *
-* -h : on-line help. *
-******************************************************************************
-* History: *
-* 12 Jul 89 - 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 "GifComb"
-
-#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 = "GifComb q%- m%-MaskGIFFile!s 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%- m%-MaskGIFFile!s h%- GifFile!*s";
-#endif /* SYSV */
-
-static int ReadUntilImage(GifFileType *GifFile);
-static void QuitGifError(GifFileType *GifFileIn1, GifFileType *GifFileIn2,
- GifFileType *GifMaskFile, GifFileType *GifFileOut);
-
-/******************************************************************************
-* Interpret the command line and scan the given GIF file. *
-******************************************************************************/
-int main(int argc, char **argv)
-{
- int i, j, Error, NumFiles, Size,
- MaskFlag = FALSE, HelpFlag = FALSE;
- char **FileName = NULL, *MaskFileName;
- GifPixelType ColorTransIn2[256];
- GifRowType LineIn1 = NULL, LineIn2 = NULL, LineMask = NULL, LineOut = NULL;
- ColorMapObject *ColorUnion;
- ColorMapObject *ColorIn1 = NULL, *ColorIn2 = NULL;
- GifFileType *GifFileIn1 = NULL, *GifFileIn2 = NULL, *GifMaskFile = NULL,
- *GifFileOut = NULL;
-
- if ((Error = GAGetArgs(argc, argv, CtrlStr,
- &GifQuietPrint, &MaskFlag, &MaskFileName,
- &HelpFlag, &NumFiles, &FileName)) != FALSE ||
- (NumFiles != 2 && !HelpFlag)) {
- if (Error)
- GAPrintErrMsg(Error);
- else if (NumFiles != 2)
- GIF_MESSAGE("Error in command line parsing - two GIF file please.");
- GAPrintHowTo(CtrlStr);
- exit(EXIT_FAILURE);
- }
-
- if (HelpFlag) {
- fprintf(stderr, VersionStr);
- GAPrintHowTo(CtrlStr);
- exit(EXIT_SUCCESS);
- }
-
- /* Open all input files (two GIF to combine, and optional mask): */
- if ((GifFileIn1 = DGifOpenFileName(FileName[0])) == NULL ||
- (GifFileIn2 = DGifOpenFileName(FileName[1])) == NULL ||
- (MaskFlag && (GifMaskFile = DGifOpenFileName(MaskFileName)) == NULL))
- QuitGifError(GifFileIn1, GifFileIn2, GifMaskFile, GifFileOut);
-
- if (ReadUntilImage(GifFileIn1) == GIF_ERROR ||
- ReadUntilImage(GifFileIn2) == GIF_ERROR ||
- (MaskFlag && ReadUntilImage(GifMaskFile) == GIF_ERROR))
- QuitGifError(GifFileIn1, GifFileIn2, GifMaskFile, GifFileOut);
-
- if (GifFileIn1->Image.Width != GifFileIn2->Image.Width ||
- GifFileIn2->Image.Height != GifFileIn2->Image.Height ||
- (MaskFlag && (GifFileIn1->Image.Width != GifMaskFile->Image.Width ||
- GifFileIn1->Image.Height != GifMaskFile->Image.Height)))
- GIF_EXIT("Given GIF files have different image dimensions.");
-
- /* Open stdout for the output file: */
- if ((GifFileOut = EGifOpenFileHandle(1)) == NULL)
- QuitGifError(GifFileIn1, GifFileIn2, GifMaskFile, GifFileOut);
-
- Size = sizeof(GifPixelType) * GifFileIn1->Image.Width;
- if ((LineIn1 = (GifRowType) malloc(Size)) == NULL ||
- (LineIn2 = (GifRowType) malloc(Size)) == NULL ||
- (MaskFlag && (LineMask = (GifRowType) malloc(Size)) == NULL) ||
- (LineOut = (GifRowType) malloc(Size)) == NULL)
- GIF_EXIT("Failed to allocate memory required, aborted.");
-
- if (GifFileIn1->Image.ColorMap) {
- ColorIn1 = GifFileIn1->Image.ColorMap;
- }
- else if (GifFileIn1->SColorMap) {
- ColorIn1 = GifFileIn1->SColorMap;
- }
- else
- GIF_EXIT("Neither Screen nor Image color map exists - GIF file 1.");
-
- if (GifFileIn2->Image.ColorMap) {
- ColorIn2 = GifFileIn2->Image.ColorMap;
- }
- else if (GifFileIn2->SColorMap) {
- ColorIn2 = GifFileIn2->SColorMap;
- }
- else
- GIF_EXIT("Neither Screen nor Image color map exists - GIF file 2.");
-
- /* Create union of the two given color maps. ColorIn1 will be copied as */
- /* is while ColorIn2 will be mapped using ColorTransIn2 table. */
- /* ColorUnion is allocated by the procedure itself. */
- if ((ColorUnion = UnionColorMap(ColorIn1, ColorIn2, ColorTransIn2))==NULL)
- GIF_EXIT("Unioned color map is too big (>256 colors).");
-
- /* Dump out new image and screen descriptors: */
- if (EGifPutScreenDesc(GifFileOut,
- GifFileIn1->SWidth, GifFileIn1->SHeight,
- ColorUnion->BitsPerPixel, GifFileIn1->SBackGroundColor,
- ColorUnion) == GIF_ERROR)
- QuitGifError(GifFileIn1, GifFileIn2, GifMaskFile, GifFileOut);
-
- if (EGifPutImageDesc(GifFileOut,
- GifFileIn1->Image.Left, GifFileIn1->Image.Top,
- GifFileIn1->Image.Width, GifFileIn1->Image.Height,
- GifFileIn1->Image.Interlace, NULL) == GIF_ERROR)
- QuitGifError(GifFileIn1, GifFileIn2, GifMaskFile, GifFileOut);
-
-
- /* Time to do it: read 2 scan lines from 2 files (and optionally from */
- /* the mask file, merge them and them result out. Do it Height times: */
- GifQprintf("\n%s: Image 1 at (%d, %d) [%dx%d]: ",
- PROGRAM_NAME, GifFileOut->Image.Left, GifFileOut->Image.Top,
- GifFileOut->Image.Width, GifFileOut->Image.Height);
- for (i = 0; i < GifFileIn1->Image.Height; i++) {
- if (DGifGetLine(GifFileIn1, LineIn1, GifFileIn1->Image.Width) == GIF_ERROR ||
- DGifGetLine(GifFileIn2, LineIn2, GifFileIn2->Image.Width) == GIF_ERROR ||
- (MaskFlag &&
- DGifGetLine(GifMaskFile, LineMask, GifMaskFile->Image.Width)
- == GIF_ERROR))
- QuitGifError(GifFileIn1, GifFileIn2, GifMaskFile, GifFileOut);
- if (MaskFlag) {
- /* Every time Mask has non background color, use LineIn1 pixel, */
- /* otherwise use LineIn2 pixel instead. */
- for (j = 0; j < GifFileIn1->Image.Width; j++) {
- if (LineMask[j] != GifMaskFile->SBackGroundColor)
- LineOut[j] = LineIn1[j];
- else
- LineOut[j] = ColorTransIn2[LineIn2[j]];
- }
- }
- else {
- /* Every time Color of Image 1 is equal to background - take it */
- /* From Image 2 instead of the background. */
- for (j = 0; j < GifFileIn1->Image.Width; j++) {
- if (LineIn1[j] != GifFileIn1->SBackGroundColor)
- LineOut[j] = LineIn1[j];
- else
- LineOut[j] = ColorTransIn2[LineIn2[j]];
- }
- }
- if (EGifPutLine(GifFileOut, LineOut, GifFileOut->Image.Width)
- == GIF_ERROR)
- QuitGifError(GifFileIn1, GifFileIn2, GifMaskFile, GifFileOut);
- GifQprintf("\b\b\b\b%-4d", i);
- }
-
- FreeMapObject(ColorUnion); /* We dont need this any more... */
- ColorUnion = NULL;
-
- if (DGifCloseFile(GifFileIn1) == GIF_ERROR ||
- DGifCloseFile(GifFileIn2) == GIF_ERROR ||
- EGifCloseFile(GifFileOut) == GIF_ERROR ||
- (MaskFlag && DGifCloseFile(GifMaskFile) == GIF_ERROR))
- QuitGifError(GifFileIn1, GifFileIn2, GifMaskFile, GifFileOut);
-
- return 0;
-}
-
-/******************************************************************************
-* Read until first image in GIF file is detected and read its descriptor. *
-******************************************************************************/
-static int ReadUntilImage(GifFileType *GifFile)
-{
- int ExtCode;
- GifRecordType RecordType;
- GifByteType *Extension;
-
- /* Scan the content of the GIF file, until image descriptor is detected: */
- do {
- if (DGifGetRecordType(GifFile, &RecordType) == GIF_ERROR)
- return GIF_ERROR;
-
- switch (RecordType) {
- case IMAGE_DESC_RECORD_TYPE:
- return DGifGetImageDesc(GifFile);
- case EXTENSION_RECORD_TYPE:
- /* Skip any extension blocks in file: */
- if (DGifGetExtension(GifFile, &ExtCode, &Extension) == GIF_ERROR)
- return GIF_ERROR;
-
- while (Extension != NULL)
- if (DGifGetExtensionNext(GifFile, &Extension) == GIF_ERROR)
- return GIF_ERROR;
- break;
- case TERMINATE_RECORD_TYPE:
- break;
- default: /* Should be traps by DGifGetRecordType. */
- break;
- }
- }
- while (RecordType != TERMINATE_RECORD_TYPE);
-
- return GIF_ERROR; /* We should be here - no image was found! */
-}
-
-/******************************************************************************
-* Close both input and output file (if open), and exit. *
-******************************************************************************/
-static void QuitGifError(GifFileType *GifFileIn1, GifFileType *GifFileIn2,
- GifFileType *GifMaskFile, GifFileType *GifFileOut)
-{
- PrintGifError();
- if (GifFileIn1 != NULL) DGifCloseFile(GifFileIn1);
- if (GifFileIn2 != NULL) DGifCloseFile(GifFileIn2);
- if (GifMaskFile != NULL) DGifCloseFile(GifMaskFile);
- if (GifFileOut != NULL) EGifCloseFile(GifFileOut);
- exit(EXIT_FAILURE);
-}
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