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-rw-r--r--giflib-4.1.6/util/gifrotat.c330
1 files changed, 0 insertions, 330 deletions
diff --git a/giflib-4.1.6/util/gifrotat.c b/giflib-4.1.6/util/gifrotat.c
deleted file mode 100644
index 6343cf1..0000000
--- a/giflib-4.1.6/util/gifrotat.c
+++ /dev/null
@@ -1,330 +0,0 @@
-/*****************************************************************************
-* "Gif-Lib" - Yet another gif library. *
-* *
-* Written by: Gershon Elber Ver 0.1, Aug. 1991 *
-******************************************************************************
-* Program to rotate a GIF image by an arbitrary angle. *
-* Options: *
-* -q : quiet printing mode. *
-* -a Angle : angle to rotate with respect to the X axis. *
-* -s Width Height : specifies size of output image. *
-* -h : on-line help. *
-******************************************************************************
-* History: *
-* 2 Aug 91 - Version 1.0 by Gershon Elber. *
-*****************************************************************************/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#ifdef __MSDOS__
-#include <graphics.h>
-#include <stdlib.h>
-#include <alloc.h>
-#include <io.h>
-#include <dos.h>
-#include <bios.h>
-#endif /* __MSDOS__ */
-
-#ifndef __MSDOS__
-#include <stdlib.h>
-#endif
-#include <stdio.h>
-#include <math.h>
-#include <ctype.h>
-#include <string.h>
-#ifdef HAVE_FCNTL_H
-#include <fcntl.h>
-#endif /* HAVE_FCNTL_H */
-#include "gif_lib.h"
-#include "getarg.h"
-
-#ifndef M_PI
-#define M_PI 3.14159265358979323846
-#endif /* M_PI */
-
-#define PROGRAM_NAME "GifRotat"
-
-#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 = "GifRotat a!-Angle!d q%- s%-Width|Height!d!d 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
- " a!-Angle!d q%- s%-Width|Height!d!d h%- GifFile!*s";
-#endif /* SYSV */
-
-static int
- InterlacedOffset[] = { 0, 4, 2, 1 }, /* The way Interlaced image should. */
- InterlacedJumps[] = { 8, 8, 4, 2 }; /* be read - offsets and jumps... */
-
-static void RotateGifImage(GifRowType *ScreenBuffer, GifFileType *SrcGifFile,
- int Angle, ColorMapObject *ColorMap,
- int DstWidth, int DstHeight);
-static void RotateGifLine(GifRowType *ScreenBuffer, int BackGroundColor,
- int SrcWidth, int SrcHeight,
- int Angle, GifRowType DstLine,
- int DstWidth, int DstHeight, int y);
-static void QuitGifError(GifFileType *DstGifFile);
-
-/******************************************************************************
-* Interpret the command line and scan the given GIF file. *
-******************************************************************************/
-int main(int argc, char **argv)
-{
- int i, j, Size, Error, NumFiles, Col, Row, Count, ExtCode,
- DstWidth, DstHeight, Width, Height,
- ImageNum = 0,
- DstSizeFlag = FALSE,
- AngleFlag = FALSE,
- Angle = 0,
- HelpFlag = FALSE;
- char **FileName = NULL;
- GifRecordType RecordType;
- GifByteType *Extension;
- GifFileType *GifFile;
- GifRowType *ScreenBuffer;
- ColorMapObject *ColorMap = NULL;
-
- if ((Error = GAGetArgs(argc, argv, CtrlStr,
- &AngleFlag, &Angle, &GifQuietPrint,
- &DstSizeFlag, &DstWidth, &DstHeight, &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) {
- if ((GifFile = DGifOpenFileName(*FileName)) == NULL) {
- PrintGifError();
- exit(EXIT_FAILURE);
- }
- }
- else {
- /* Use the stdin instead: */
-
-#ifdef __MSDOS__
- setmode(0, O_BINARY);
-#endif /* __MSDOS__ */
- if ((GifFile = DGifOpenFileHandle(0)) == NULL) {
- PrintGifError();
- exit(EXIT_FAILURE);
- }
- }
-
- /* Allocate the screen as vector of column of rows. We cannt allocate */
- /* the all screen at once, as this broken minded CPU can allocate up to */
- /* 64k at a time and our image can be bigger than that: */
- /* Note this screen is device independent - its the screen as defined by */
- /* the GIF file parameters itself. */
- if ((ScreenBuffer = (GifRowType *)
- malloc(GifFile->SHeight * sizeof(GifRowType *))) == NULL)
- GIF_EXIT("Failed to allocate memory required, aborted.");
-
- Size = GifFile->SWidth * sizeof(GifPixelType);/* Size in bytes one row.*/
- if ((ScreenBuffer[0] = (GifRowType) malloc(Size)) == NULL) /* First row. */
- GIF_EXIT("Failed to allocate memory required, aborted.");
-
- for (i = 0; i < GifFile->SWidth; i++) /* Set its color to BackGround. */
- ScreenBuffer[0][i] = GifFile->SBackGroundColor;
- for (i = 1; i < GifFile->SHeight; i++) {
- /* Allocate the other rows, and set their color to background too: */
- if ((ScreenBuffer[i] = (GifRowType) malloc(Size)) == NULL)
- GIF_EXIT("Failed to allocate memory required, aborted.");
-
- memcpy(ScreenBuffer[i], ScreenBuffer[0], Size);
- }
-
- /* Scan the content of the GIF file and load the image(s) in: */
- 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);
- }
- Row = GifFile->Image.Top; /* Image Position relative to Screen. */
- Col = GifFile->Image.Left;
- Width = GifFile->Image.Width;
- Height = GifFile->Image.Height;
- GifQprintf("\n%s: Image %d at (%d, %d) [%dx%d]: ",
- PROGRAM_NAME, ++ImageNum, Col, Row, Width, Height);
- if (GifFile->Image.Left + GifFile->Image.Width > GifFile->SWidth ||
- GifFile->Image.Top + GifFile->Image.Height > GifFile->SHeight) {
- fprintf(stderr, "Image %d is not confined to screen dimension, aborted.\n",ImageNum);
- exit(EXIT_FAILURE);
- }
- if (GifFile->Image.Interlace) {
- /* Need to perform 4 passes on the images: */
- for (Count = i = 0; i < 4; i++)
- for (j = Row + InterlacedOffset[i]; j < Row + Height;
- j += InterlacedJumps[i]) {
- GifQprintf("\b\b\b\b%-4d", Count++);
- if (DGifGetLine(GifFile, &ScreenBuffer[j][Col],
- Width) == GIF_ERROR) {
- PrintGifError();
- exit(EXIT_FAILURE);
- }
- }
- }
- else {
- for (i = 0; i < Height; i++) {
- GifQprintf("\b\b\b\b%-4d", i);
- if (DGifGetLine(GifFile, &ScreenBuffer[Row++][Col],
- Width) == GIF_ERROR) {
- PrintGifError();
- exit(EXIT_FAILURE);
- }
- }
- }
- break;
- case EXTENSION_RECORD_TYPE:
- /* Skip any extension blocks in file: */
- if (DGifGetExtension(GifFile, &ExtCode, &Extension) == GIF_ERROR) {
- PrintGifError();
- exit(EXIT_FAILURE);
- }
- while (Extension != NULL) {
- if (DGifGetExtensionNext(GifFile, &Extension) == GIF_ERROR) {
- PrintGifError();
- exit(EXIT_FAILURE);
- }
- }
- break;
- case TERMINATE_RECORD_TYPE:
- break;
- default: /* Should be traps by DGifGetRecordType. */
- break;
- }
- }
- while (RecordType != TERMINATE_RECORD_TYPE);
-
- ColorMap = (GifFile->Image.ColorMap ? GifFile->Image.ColorMap :
- GifFile->SColorMap);
-
- if (!DstSizeFlag) {
- DstWidth = GifFile->SWidth;
- DstHeight = GifFile->SHeight;
- }
-
- /* Perform the actual rotation and dump the image: */
- RotateGifImage(ScreenBuffer, GifFile, Angle, ColorMap,
- DstWidth, DstHeight);
-
- return 0;
-}
-
-/******************************************************************************
-* Save the GIF resulting image. *
-******************************************************************************/
-static void RotateGifImage(GifRowType *ScreenBuffer, GifFileType *SrcGifFile,
- int Angle, ColorMapObject *ColorMap,
- int DstWidth, int DstHeight)
-{
- int i,
- LineSize = DstWidth * sizeof(GifPixelType);
- GifFileType *DstGifFile;
- GifRowType LineBuffer;
-
- if ((LineBuffer = (GifRowType) malloc(LineSize)) == NULL)
- GIF_EXIT("Failed to allocate memory required, aborted.");
-
- /* Open stdout for the output file: */
- if ((DstGifFile = EGifOpenFileHandle(1)) == NULL)
- QuitGifError(DstGifFile);
-
- if (EGifPutScreenDesc(DstGifFile, DstWidth, DstHeight,
- ColorMap->BitsPerPixel, 0, ColorMap) == GIF_ERROR ||
- EGifPutImageDesc(DstGifFile, 0, 0, DstWidth, DstHeight,
- FALSE, NULL) == GIF_ERROR)
- QuitGifError(DstGifFile);
-
- for (i = 0; i < DstHeight; i++) {
- RotateGifLine(ScreenBuffer, SrcGifFile->SBackGroundColor,
- SrcGifFile->SWidth, SrcGifFile->SHeight,
- Angle, LineBuffer, DstWidth, DstHeight, i);
- if (EGifPutLine(DstGifFile, LineBuffer, DstWidth) == GIF_ERROR)
- QuitGifError(DstGifFile);
- GifQprintf("\b\b\b\b%-4d", DstHeight - i - 1);
- }
-
- if (EGifCloseFile(DstGifFile) == GIF_ERROR)
- QuitGifError(DstGifFile);
-}
-
-
-/******************************************************************************
-* Save the GIF resulting image. *
-******************************************************************************/
-static void RotateGifLine(GifRowType *ScreenBuffer, int BackGroundColor,
- int SrcWidth, int SrcHeight,
- int Angle, GifRowType DstLine,
- int DstWidth, int DstHeight, int y)
-{
- int x,
- TransSrcX = SrcWidth / 2,
- TransSrcY = SrcHeight / 2,
- TransDstX = DstWidth / 2,
- TransDstY = DstHeight / 2;
- double SinAngle = sin(Angle * M_PI / 180.0),
- CosAngle = cos(Angle * M_PI / 180.0);
-
- for (x = 0; x < DstWidth; x++)
- {
- int xc = x - TransDstX,
- yc = y - TransDstY,
- SrcX = xc * CosAngle - yc * SinAngle + TransSrcX,
- SrcY = xc * SinAngle + yc * CosAngle + TransSrcY;
-
- if (SrcX < 0 || SrcX >= SrcWidth ||
- SrcY < 0 || SrcY >= SrcHeight)
- {
- /* Out of the source image domain - set it to background color. */
- *DstLine++ = BackGroundColor;
- }
- else
- *DstLine++ = ScreenBuffer[SrcY][SrcX];
- }
-}
-
-/******************************************************************************
-* Close output file (if open), and exit. *
-******************************************************************************/
-static void QuitGifError(GifFileType *DstGifFile)
-{
- PrintGifError();
- if (DstGifFile != NULL) EGifCloseFile(DstGifFile);
- exit(EXIT_FAILURE);
-}
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