static void SaveGif(const char* FileName,
GifByteType *OutputBuffer,
ColorMapObject *OutputColorMap,
int ExpColorMapSize, int Width, int Height)
{
int i;
GifFileType *GifFile;
GifByteType *Ptr = OutputBuffer;
if ((GifFile = EGifOpenFileName(FileName,0)) == NULL)
QuitGifError(GifFile);
if (EGifPutScreenDesc(GifFile,
Width, Height, ExpColorMapSize, 0,
OutputColorMap) == GIF_ERROR ||
EGifPutImageDesc(GifFile,
0, 0, Width, Height, FALSE, NULL) == GIF_ERROR)
QuitGifError(GifFile);
printf("Image '%s' at (%d, %d) [%dx%d]\n", FileName,
GifFile->Image.Left, GifFile->Image.Top,
GifFile->Image.Width, GifFile->Image.Height);
for (i = 0; i < Height; i++) {
if (EGifPutLine(GifFile, Ptr, Width) == GIF_ERROR)
QuitGifError(GifFile);
Ptr += Width;
}
if (EGifCloseFile(GifFile) == GIF_ERROR)
QuitGifError(GifFile);
}
/******************************************************************************
* Save the GIF resulting image. *
******************************************************************************/
static void RotateGifImage(GifRowType *ScreenBuffer, GifFileType *SrcGifFile,
int Angle, GifColorType *ColorMap,
int ExpColorMapSize, 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,
ExpColorMapSize, 0, ExpColorMapSize,
ColorMap) == GIF_ERROR ||
EGifPutImageDesc(DstGifFile, 0, 0, DstWidth, DstHeight,
FALSE, ExpColorMapSize, 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 SaveGif(GifByteType *OutputBuffer,
ColorMapObject *OutputColorMap,
int ExpColorMapSize, int Width, int Height)
{
int i;
GifFileType *GifFile;
GifByteType *Ptr = OutputBuffer + Width * (Height - 1);
/* Open stdout for the output file: */
if ((GifFile = EGifOpenFileHandle(1)) == NULL)
QuitGifError(GifFile);
if (EGifPutScreenDesc(GifFile,
Width, Height, ExpColorMapSize, 0,
OutputColorMap) == GIF_ERROR ||
EGifPutImageDesc(GifFile,
0, 0, Width, Height, 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);
for (i = 0; i < Height; i++) {
if (EGifPutLine(GifFile, Ptr, Width) == GIF_ERROR)
QuitGifError(GifFile);
GifQprintf("\b\b\b\b%-4d", Height - i - 1);
Ptr -= Width;
}
if (EGifCloseFile(GifFile) == GIF_ERROR)
QuitGifError(GifFile);
}
/******************************************************************************
* Interpret the command line and scan the given GIF file. *
******************************************************************************/
int main(int argc, char **argv)
{
int i, j, Error, NumFiles, Width, Height;
char **FileName = NULL;
GifByteType *RedBuffer = NULL, *GreenBuffer = NULL, *BlueBuffer = NULL,
*OutputBuffer = NULL;
ColorMapObject *OutputColorMap = NULL;
if ((Error = GAGetArgs(argc, argv, CtrlStr, &GifQuietPrint,
&ColorFlag, &ExpNumOfColors, &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);
}
ColorMapSize = 1 << ExpNumOfColors;
if (NumFiles == 1) {
LoadRle(*FileName,
&RedBuffer, &GreenBuffer, &BlueBuffer, &Width, &Height);
}
else {
LoadRle(NULL,
&RedBuffer, &GreenBuffer, &BlueBuffer, &Width, &Height);
}
if ((OutputColorMap = MakeMapObject(ColorMapSize, NULL)) == NULL ||
(OutputBuffer = (GifByteType *) malloc(Width * Height *
sizeof(GifByteType))) == NULL)
GIF_EXIT("Failed to allocate memory required, aborted.");
if (QuantizeBuffer(Width, Height, &ColorMapSize,
RedBuffer, GreenBuffer, BlueBuffer,
OutputBuffer, OutputColorMap->Colors) == GIF_ERROR)
QuitGifError(NULL);
free((char *) RedBuffer);
free((char *) GreenBuffer);
free((char *) BlueBuffer);
SaveGif(OutputBuffer, OutputColorMap, ExpNumOfColors, Width, Height);
return 0;
}
/******************************************************************************
* Interpret the command line and scan the given GIF file. *
******************************************************************************/
int main(int argc, char **argv)
{
int i, iy, last_iy, l, t, w, h, Error, NumFiles, ExtCode,
ImageNum = 0,
SizeFlag = FALSE,
ScaleFlag = FALSE,
XScaleFlag = FALSE,
YScaleFlag = FALSE,
HelpFlag = FALSE;
double Scale, y;
GifRecordType RecordType;
char s[80];
GifByteType *Extension;
GifRowType LineIn, LineOut;
char **FileName = NULL;
GifFileType *GifFileIn = NULL, *GifFileOut = NULL;
if ((Error = GAGetArgs(argc, argv, CtrlStr,
&GifQuietPrint, &SizeFlag, &XSize, &YSize, &ScaleFlag, &Scale,
&XScaleFlag, &XScale, &YScaleFlag, &YScale,
&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 specific direction was set, set other direction to 1: */
if (!XScaleFlag && YScaleFlag) XScale = 1.0;
if (!YScaleFlag && XScaleFlag) YScale = 1.0;
/* If the specific direction was not set, but global one did use it: */
if (!XScaleFlag && ScaleFlag) XScale = Scale;
if (!YScaleFlag && ScaleFlag) YScale = Scale;
if (XScale > MAX_SCALE) {
sprintf(s, "XScale too big, maximum scale selected instead (%f).",
MAX_SCALE);
GIF_MESSAGE(s);
XScale = MAX_SCALE;
}
if (YScale > MAX_SCALE) {
sprintf(s, "YScale too big, maximum scale selected instead (%f).",
MAX_SCALE);
GIF_MESSAGE(s);
YScale = MAX_SCALE;
}
if (NumFiles == 1) {
if ((GifFileIn = DGifOpenFileName(*FileName)) == NULL)
QuitGifError(GifFileIn, GifFileOut);
}
else {
/* Use the stdin instead: */
if ((GifFileIn = DGifOpenFileHandle(0)) == NULL)
QuitGifError(GifFileIn, GifFileOut);
}
BackGroundColor = GifFileIn->SBackGroundColor;
/* If size was specified, it is used to derive the scale: */
if (SizeFlag) {
XScale = XSize / ((double) GifFileIn->SWidth);
YScale = YSize / ((double) GifFileIn->SHeight);
}
else
{
XSize = (int) (GifFileIn->SWidth * XScale + 0.5);
YSize = (int) (GifFileIn->SHeight * YScale + 0.5);
}
/* As at this time we know the Screen size of the input gif file, and as */
/* all image(s) in file must be less/equal to it, we can allocate the */
/* scan lines for the input file, and output file. The number of lines */
/* to allocate for each is set by ScaleDown & XScale & YScale: */
LineOut = (GifRowType) malloc(XSize * sizeof(GifPixelType));
LineIn = (GifRowType) malloc(GifFileIn->SWidth * sizeof(GifPixelType));
/* Open stdout for the output file: */
if ((GifFileOut = EGifOpenFileHandle(1)) == NULL)
QuitGifError(GifFileIn, GifFileOut);
/* And dump out its new scaled screen information: */
if (EGifPutScreenDesc(GifFileOut, XSize, YSize,
GifFileIn->SColorResolution, GifFileIn->SBackGroundColor,
GifFileIn->SColorMap) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* Scan the content of the GIF file and load the image(s) in: */
do {
if (DGifGetRecordType(GifFileIn, &RecordType) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
switch (RecordType) {
case IMAGE_DESC_RECORD_TYPE:
if (DGifGetImageDesc(GifFileIn) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* Put the image descriptor to out file: */
l = (int) (GifFileIn->Image.Left * XScale + 0.5);
w = (int) (GifFileIn->Image.Width * XScale + 0.5);
t = (int) (GifFileIn->Image.Top * YScale + 0.5);
h = (int) (GifFileIn->Image.Height * YScale + 0.5);
if (l < 0) l = 0;
if (t < 0) t = 0;
if (l + w > XSize) w = XSize - l;
if (t + h > YSize) h = YSize - t;
if (EGifPutImageDesc(GifFileOut, l, t, w, h,
GifFileIn->Image.Interlace,
GifFileIn->Image.ColorMap) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (GifFileIn->Image.Interlace) {
GIF_EXIT("Cannt resize interlaced images - use GifInter first.");
}
else {
GifQprintf("\n%s: Image %d at (%d, %d) [%dx%d]: ",
PROGRAM_NAME, ++ImageNum,
GifFileOut->Image.Left, GifFileOut->Image.Top,
GifFileOut->Image.Width, GifFileOut->Image.Height);
for (i = GifFileIn->Image.Height, y = 0.0, last_iy = -1;
i-- > 0;
y += YScale) {
if (DGifGetLine(GifFileIn, LineIn,
GifFileIn->Image.Width) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
iy = (int) y;
if (last_iy < iy && last_iy < YSize) {
ResizeLine(LineIn, LineOut,
GifFileIn->Image.Width, GifFileOut->Image.Width);
for (;
last_iy < iy && last_iy < GifFileOut->Image.Height - 1;
last_iy++) {
GifQprintf("\b\b\b\b%-4d", last_iy + 1);
if (EGifPutLine(GifFileOut, LineOut,
GifFileOut->Image.Width) ==
GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
}
}
/* If scale is not dividable - dump last lines: */
while (++last_iy < GifFileOut->Image.Height) {
GifQprintf("\b\b\b\b%-4d", last_iy);
if (EGifPutLine(GifFileOut, LineOut,
GifFileOut->Image.Width) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
}
break;
case EXTENSION_RECORD_TYPE:
/* Skip any extension blocks in file: */
if (DGifGetExtension(GifFileIn, &ExtCode, &Extension) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (EGifPutExtension(GifFileOut, ExtCode, Extension[0],
Extension) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* No support to more than one extension blocks, so discard: */
while (Extension != NULL) {
if (DGifGetExtensionNext(GifFileIn, &Extension) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
break;
case TERMINATE_RECORD_TYPE:
break;
default: /* Should be traps by DGifGetRecordType. */
break;
}
}
while (RecordType != TERMINATE_RECORD_TYPE);
if (DGifCloseFile(GifFileIn) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (EGifCloseFile(GifFileOut) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
free(LineOut);
free(LineIn);
return 0;
}
/******************************************************************************
* Interpret the command line and scan the given GIF file. *
******************************************************************************/
int main(int argc, char **argv)
{
int i, j, Error, NumFiles, ExtCode, Row, Col, Width, Height,
DarkestColor = 0, ColorIntens = 10000, HelpFlag = FALSE;
GifRecordType RecordType;
GifByteType *Extension;
char **FileName = NULL;
GifRowType LineBuffer;
ColorMapObject *ColorMap;
GifFileType *GifFileIn = NULL, *GifFileOut = NULL;
if ((Error = GAGetArgs(argc, argv, CtrlStr, &GifQuietPrint, &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 ((GifFileIn = DGifOpenFileName(*FileName)) == NULL)
QuitGifError(GifFileIn, GifFileOut);
}
else {
/* Use the stdin instead: */
if ((GifFileIn = DGifOpenFileHandle(0)) == NULL)
QuitGifError(GifFileIn, GifFileOut);
}
/* Open stdout for the output file: */
if ((GifFileOut = EGifOpenFileHandle(1)) == NULL)
QuitGifError(GifFileIn, GifFileOut);
/* Dump out exactly same screen information: */
if (EGifPutScreenDesc(GifFileOut,
GifFileIn->SWidth, GifFileIn->SHeight,
GifFileIn->SColorResolution, GifFileIn->SBackGroundColor,
GifFileIn->SColorMap) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if ((LineBuffer = (GifRowType) malloc(GifFileIn->SWidth)) == NULL)
GIF_EXIT("Failed to allocate memory required, aborted.");
/* Scan the content of the GIF file and load the image(s) in: */
do {
if (DGifGetRecordType(GifFileIn, &RecordType) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
switch (RecordType) {
case IMAGE_DESC_RECORD_TYPE:
if (DGifGetImageDesc(GifFileIn) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (GifFileIn->Image.Interlace)
GIF_EXIT("Cannt fix interlaced images.");
Row = GifFileIn->Image.Top; /* Image Position relative to Screen. */
Col = GifFileIn->Image.Left;
Width = GifFileIn->Image.Width;
Height = GifFileIn->Image.Height;
GifQprintf("\n%s: Image %d at (%d, %d) [%dx%d]: ",
PROGRAM_NAME, ++ImageNum, Col, Row, Width, Height);
/* Put the image descriptor to out file: */
if (EGifPutImageDesc(GifFileOut, Col, Row, Width, Height,
FALSE, GifFileIn->Image.ColorMap) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* Find the darkest color in color map to use as a filler. */
ColorMap = (GifFileIn->Image.ColorMap ? GifFileIn->Image.ColorMap :
GifFileIn->SColorMap);
for (i = 0; i < ColorMap->ColorCount; i++) {
j = ((int) ColorMap->Colors[i].Red) * 30 +
((int) ColorMap->Colors[i].Green) * 59 +
((int) ColorMap->Colors[i].Blue) * 11;
if (j < ColorIntens) {
ColorIntens = j;
DarkestColor = i;
}
}
/* Load the image, and dump it. */
for (i = 0; i < Height; i++) {
GifQprintf("\b\b\b\b%-4d", i);
if (DGifGetLine(GifFileIn, LineBuffer, Width)
== GIF_ERROR) break;
if (EGifPutLine(GifFileOut, LineBuffer, Width)
== GIF_ERROR) QuitGifError(GifFileIn, GifFileOut);
}
if (i < Height) {
fprintf(stderr, "\nFollowing error occured (and ignored):");
PrintGifError();
/* Fill in with the darkest color in color map. */
for (j = 0; j < Width; j++)
LineBuffer[j] = DarkestColor;
for (; i < Height; i++)
if (EGifPutLine(GifFileOut, LineBuffer, Width)
== GIF_ERROR) QuitGifError(GifFileIn, GifFileOut);
}
break;
case EXTENSION_RECORD_TYPE:
/* Skip any extension blocks in file: */
if (DGifGetExtension(GifFileIn, &ExtCode, &Extension) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (Extension && EGifPutExtension(GifFileOut, ExtCode,
Extension[0], Extension) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* No support to more than one extension blocks, so discard: */
while (Extension != NULL) {
if (DGifGetExtensionNext(GifFileIn, &Extension) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
break;
case TERMINATE_RECORD_TYPE:
break;
default: /* Should be traps by DGifGetRecordType. */
break;
}
}
while (RecordType != TERMINATE_RECORD_TYPE);
if (DGifCloseFile(GifFileIn) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (EGifCloseFile(GifFileOut) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
return 0;
}
/******************************************************************************
* Interpret the command line and scan the given GIF file. *
******************************************************************************/
void main(int argc, char **argv)
{
int Error, NumFiles, ExtCode;
GifRecordType RecordType;
GifByteType *Extension;
char **FileName = NULL;
GifRowType *ImageBuffer;
GifFileType *GifFileIn = NULL, *GifFileOut = NULL;
if ((Error = GAGetArgs(argc, argv, CtrlStr, &GifQuitePrint,
&InterlacedFlag, &SequencialFlag, &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(1);
}
if (HelpFlag) {
fprintf(stderr, VersionStr);
GAPrintHowTo(CtrlStr);
exit(0);
}
if (NumFiles == 1) {
if ((GifFileIn = DGifOpenFileName(*FileName)) == NULL)
QuitGifError(GifFileIn, GifFileOut);
}
else {
/* Use the stdin instead: */
if ((GifFileIn = DGifOpenFileHandle(0)) == NULL)
QuitGifError(GifFileIn, GifFileOut);
}
/* Open stdout for the output file: */
if ((GifFileOut = EGifOpenFileHandle(1)) == NULL)
QuitGifError(GifFileIn, GifFileOut);
/* And dump out exactly same screen information: */
if (EGifPutScreenDesc(GifFileOut,
GifFileIn -> SWidth, GifFileIn -> SHeight,
GifFileIn -> SColorResolution, GifFileIn -> SBackGroundColor,
GifFileIn -> SBitsPerPixel, GifFileIn -> SColorMap) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* Scan the content of the GIF file and load the image(s) in: */
do {
if (DGifGetRecordType(GifFileIn, &RecordType) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
switch (RecordType) {
case IMAGE_DESC_RECORD_TYPE:
if (DGifGetImageDesc(GifFileIn) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* Put the image descriptor to out file: */
if (EGifPutImageDesc(GifFileOut,
GifFileIn -> ILeft, GifFileIn -> ITop,
GifFileIn -> IWidth, GifFileIn -> IHeight,
InterlacedFlag, GifFileIn -> IBitsPerPixel,
GifFileIn -> IColorMap) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* Load the image (either Interlaced or not), and dump it as */
/* defined in GifFileOut -> IInterlaced. */
if (LoadImage(GifFileIn, &ImageBuffer) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (DumpImage(GifFileOut, ImageBuffer) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
break;
case EXTENSION_RECORD_TYPE:
/* Skip any extension blocks in file: */
if (DGifGetExtension(GifFileIn, &ExtCode, &Extension) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (EGifPutExtension(GifFileOut, ExtCode, Extension[0],
Extension) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* No support to more than one extension blocks, so discard: */
while (Extension != NULL) {
if (DGifGetExtensionNext(GifFileIn, &Extension) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
break;
case TERMINATE_RECORD_TYPE:
break;
default: /* Should be traps by DGifGetRecordType. */
break;
}
}
while (RecordType != TERMINATE_RECORD_TYPE);
if (DGifCloseFile(GifFileIn) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (EGifCloseFile(GifFileOut) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
/******************************************************************************
* Perform the disassembly operation - take one input files into few output. *
******************************************************************************/
static int DoDisassemblyNum(const char *InFileName, char *OutFileName, int FileNum)
{
int ExtCode, CodeSize, FileEmpty;
GifRecordType RecordType;
char CrntFileName[80], *p;
GifByteType *Extension, *CodeBlock;
GifFileType *GifFileIn = NULL, *GifFileOut = NULL;
int ErrorCode;
/* If name has type postfix, strip it out, and make sure name is less */
/* or equal to 6 chars, so we will have 2 chars in name for numbers. */
//strupr(OutFileName); /* Make sure all is upper case */
#if 0
printf("OutFileName : %s\n", OutFileName);
if ((p = strrchr(OutFileName, '.')) != NULL && strlen(p) <= 4) p[0] = 0;
if ((p = strrchr(OutFileName, '/')) != NULL ||
(p = strrchr(OutFileName, '\\')) != NULL ||
(p = strrchr(OutFileName, ':')) != NULL) {
if (strlen(p) > 7) p[7] = 0; /* p includes the '/', '\\', ':' char */
}
else {
/* Only name is given for current directory: */
//if (strlen(OutFileName) > 6) OutFileName[6] = 0;
}
printf("OutFileName : %s\n", OutFileName);
#endif
/* Open input file: */
if (InFileName != NULL) {
if ((GifFileIn = DGifOpenFileName(InFileName, &ErrorCode)) == NULL)
return QuitGifError(GifFileIn, GifFileOut);
}
else {
/* Use the stdin instead: */
if ((GifFileIn = DGifOpenFileHandle(0, &ErrorCode)) == NULL)
return QuitGifError(GifFileIn, GifFileOut);
}
/* Scan the content of GIF file and dump image(s) to seperate file(s): */
//sprintf(CrntFileName, "%s_%02d.gif", OutFileName, FileNum);
sprintf(CrntFileName, "%s", OutFileName);
if ((GifFileOut = EGifOpenFileName(CrntFileName, TRUE, &ErrorCode)) == NULL)
return QuitGifError(GifFileIn, GifFileOut);
FileEmpty = TRUE;
/* And dump out its exactly same screen information: */
if (EGifPutScreenDesc(GifFileOut,
GifFileIn->SWidth, GifFileIn->SHeight,
GifFileIn->SColorResolution, GifFileIn->SBackGroundColor,
GifFileIn->SColorMap) == GIF_ERROR)
return QuitGifError(GifFileIn, GifFileOut);
do {
if (DGifGetRecordType(GifFileIn, &RecordType) == GIF_ERROR)
return QuitGifError(GifFileIn, GifFileOut);
switch (RecordType) {
case IMAGE_DESC_RECORD_TYPE:
FileEmpty = FALSE;
if (DGifGetImageDesc(GifFileIn) == GIF_ERROR)
return QuitGifError(GifFileIn, GifFileOut);
/* Put same image descriptor to out file: */
if (EGifPutImageDesc(GifFileOut,
GifFileIn->Image.Left, GifFileIn->Image.Top,
GifFileIn->Image.Width, GifFileIn->Image.Height,
GifFileIn->Image.Interlace,
GifFileIn->Image.ColorMap) == GIF_ERROR)
return QuitGifError(GifFileIn, GifFileOut);
/* Now read image itself in decoded form as we dont */
/* really care what is there, and this is much faster. */
if (DGifGetCode(GifFileIn, &CodeSize, &CodeBlock) == GIF_ERROR
|| EGifPutCode(GifFileOut, CodeSize, CodeBlock) == GIF_ERROR)
return QuitGifError(GifFileIn, GifFileOut);
while (CodeBlock != NULL)
if (DGifGetCodeNext(GifFileIn, &CodeBlock) == GIF_ERROR ||
EGifPutCodeNext(GifFileOut, CodeBlock) == GIF_ERROR)
return QuitGifError(GifFileIn, GifFileOut);
break;
case EXTENSION_RECORD_TYPE:
FileEmpty = FALSE;
/* Skip any extension blocks in file: */
if (DGifGetExtension(GifFileIn, &ExtCode, &Extension)
== GIF_ERROR)
return QuitGifError(GifFileIn, GifFileOut);
if (EGifPutExtension(GifFileOut, ExtCode, Extension[0],
Extension) == GIF_ERROR)
return QuitGifError(GifFileIn, GifFileOut);
/* No support to more than one extension blocks, discard */
while (Extension != NULL)
if (DGifGetExtensionNext(GifFileIn, &Extension)
== GIF_ERROR)
return QuitGifError(GifFileIn, GifFileOut);
break;
case TERMINATE_RECORD_TYPE:
break;
default: /* Should be traps by DGifGetRecordType */
break;
}
}
while (RecordType != IMAGE_DESC_RECORD_TYPE &&
RecordType != TERMINATE_RECORD_TYPE);
if (EGifCloseFile(GifFileOut, &ErrorCode) == GIF_ERROR)
return QuitGifError(GifFileIn, GifFileOut);
if (FileEmpty) {
/* Might happen on last file - delete it if so: */
unlink(CrntFileName);
}
if (DGifCloseFile(GifFileIn, &ErrorCode) == GIF_ERROR)
return QuitGifError(GifFileIn, GifFileOut);
}
static void Icon2Gif(char *FileName, FILE *txtin, int fdout)
{
unsigned int ExtCode, ColorMapSize = 0;
GifColorType GlobalColorMap[256], LocalColorMap[256],
*ColorMap = GlobalColorMap;
char GlobalColorKeys[PRINTABLES], LocalColorKeys[PRINTABLES],
*KeyTable = GlobalColorKeys;
int red, green, blue;
char buf[BUFSIZ * 2], InclusionFile[64];
GifFileType *GifFileOut;
SavedImage *NewImage = NULL;
int n, LineNum = 0;
if ((GifFileOut = EGifOpenFileHandle(fdout)) == NULL) {
(void) HandleGifError(GifFileOut);
}
/* OK, interpret directives */
while (fgets(buf, sizeof(buf), txtin) != (char *)NULL)
{
char *cp;
++LineNum;
/*
* Skip lines consisting only of whitespace and comments
*/
for (cp = buf; isspace((int)(*cp)); cp++)
continue;
if (*cp == '#' || *cp == '\0')
continue;
/*
* If there's a trailing comment, nuke it and all preceding whitespace.
* But preserve the EOL.
*/
if ((cp = strchr(buf, '#')) && (cp == strrchr(cp, '#')))
{
while (isspace((int)(*--cp)))
continue;
*++cp = '\n';
*++cp = '\0';
}
/*
* Explicit header declarations
*/
if (sscanf(buf, "screen width %d\n", &GifFileOut->SWidth) == 1)
continue;
else if (sscanf(buf, "screen height %d\n", &GifFileOut->SHeight) == 1)
continue;
else if (sscanf(buf, "screen colors %d\n", &n) == 1)
{
int ResBits = BitSize(n);
if (n > 256 || n < 0 || n != (1 << ResBits))
{
PARSE_ERROR("Invalid color resolution value.");
exit(EXIT_FAILURE);
}
GifFileOut->SColorResolution = ResBits;
continue;
}
else if (sscanf(buf,
"screen background %d\n",
&GifFileOut->SBackGroundColor) == 1)
continue;
/*
* Color table parsing
*/
else if (strcmp(buf, "screen map\n") == 0)
{
if (GifFileOut->SColorMap != NULL)
{
PARSE_ERROR("You've already declared a global color map.");
exit(EXIT_FAILURE);
}
ColorMapSize = 0;
ColorMap = GlobalColorMap;
KeyTable = GlobalColorKeys;
memset(GlobalColorKeys, '\0', sizeof(GlobalColorKeys));
}
else if (strcmp(buf, "image map\n") == 0)
{
if (NewImage == NULL)
{
PARSE_ERROR("No previous image declaration.");
exit(EXIT_FAILURE);
}
ColorMapSize = 0;
ColorMap = LocalColorMap;
KeyTable = LocalColorKeys;
memset(LocalColorKeys, '\0', sizeof(LocalColorKeys));
}
else if (sscanf(buf, " rgb %d %d %d is %c",
&red, &green, &blue, &KeyTable[ColorMapSize]) == 4)
{
ColorMap[ColorMapSize].Red = red;
ColorMap[ColorMapSize].Green = green;
ColorMap[ColorMapSize].Blue = blue;
ColorMapSize++;
}
else if (strcmp(buf, "end\n") == 0)
{
ColorMapObject *NewMap;
NewMap = MakeMapObject(1 << BitSize(ColorMapSize), ColorMap);
if (NewMap == (ColorMapObject *)NULL)
{
PARSE_ERROR("Out of memory while allocating new color map.");
exit(EXIT_FAILURE);
}
if (NewImage)
NewImage->ImageDesc.ColorMap = NewMap;
else
GifFileOut->SColorMap = NewMap;
}
/* GIF inclusion */
else if (sscanf(buf, "include %s", InclusionFile) == 1)
{
GifBooleanType DoTranslation;
GifPixelType Translation[256];
GifFileType *Inclusion;
SavedImage *NewImage, *CopyFrom;
if ((Inclusion = DGifOpenFileName(InclusionFile)) == NULL
|| DGifSlurp(Inclusion) == GIF_ERROR)
{
PARSE_ERROR("Inclusion read failed.");
QuitGifError(Inclusion, GifFileOut);
}
if ((DoTranslation = (GifFileOut->SColorMap!=(ColorMapObject*)NULL)))
{
ColorMapObject *UnionMap;
UnionMap = UnionColorMap(GifFileOut->SColorMap,
Inclusion->SColorMap, Translation);
if (UnionMap == NULL)
{
PARSE_ERROR("Inclusion failed --- global map conflict.");
QuitGifError(Inclusion, GifFileOut);
}
FreeMapObject(GifFileOut->SColorMap);
GifFileOut->SColorMap = UnionMap;
}
for (CopyFrom = Inclusion->SavedImages;
CopyFrom < Inclusion->SavedImages + Inclusion->ImageCount;
CopyFrom++)
{
if ((NewImage = MakeSavedImage(GifFileOut, CopyFrom)) == NULL)
{
PARSE_ERROR("Inclusion failed --- out of memory.");
QuitGifError(Inclusion, GifFileOut);
}
else if (DoTranslation)
ApplyTranslation(NewImage, Translation);
GifQprintf(
"%s: Image %d at (%d, %d) [%dx%d]: from %s\n",
PROGRAM_NAME, GifFileOut->ImageCount,
NewImage->ImageDesc.Left, NewImage->ImageDesc.Top,
NewImage->ImageDesc.Width, NewImage->ImageDesc.Height,
InclusionFile);
}
(void) DGifCloseFile(Inclusion);
}
/*
* Explicit image declarations
*/
else if (strcmp(buf, "image\n") == 0)
{
if ((NewImage = MakeSavedImage(GifFileOut, NULL)) == (SavedImage *)NULL)
{
PARSE_ERROR("Out of memory while allocating image block.");
exit(EXIT_FAILURE);
}
/* use global table unless user specifies a local one */
ColorMap = GlobalColorMap;
KeyTable = GlobalColorKeys;
}
/*
* Nothing past this point is valid unless we've seen a previous
* image declaration.
*/
else if (NewImage == (SavedImage *)NULL)
{
(void) fputs(buf, stderr);
PARSE_ERROR("Syntax error in header block.");
exit(EXIT_FAILURE);
}
/*
* Accept image attributes
*/
else if (sscanf(buf, "image top %d\n", &NewImage->ImageDesc.Top) == 1)
continue;
else if (sscanf(buf, "image left %d\n", &NewImage->ImageDesc.Left)== 1)
continue;
else if (strcmp(buf, "image interlaced\n") == 0)
{
NewImage->ImageDesc.Interlace = TRUE;
continue;
}
else if (sscanf(buf,
"image bits %d by %d\n",
&NewImage->ImageDesc.Width,
&NewImage->ImageDesc.Height) == 2)
{
int i, j;
static GifPixelType *Raster, *cp;
int c;
if ((Raster = (GifPixelType *) malloc(sizeof(GifPixelType) * NewImage->ImageDesc.Width * NewImage->ImageDesc.Height))
== NULL) {
PARSE_ERROR("Failed to allocate raster block, aborted.");
exit(EXIT_FAILURE);
}
if (!GifQuietPrint)
fprintf(stderr, "%s: Image %d at (%d, %d) [%dx%d]: ",
PROGRAM_NAME, GifFileOut->ImageCount,
NewImage->ImageDesc.Left, NewImage->ImageDesc.Top,
NewImage->ImageDesc.Width, NewImage->ImageDesc.Height);
cp = Raster;
for (i = 0; i < NewImage->ImageDesc.Height; i++) {
char *dp;
for (j = 0; j < NewImage->ImageDesc.Width; j++)
if ((c = fgetc(txtin)) == EOF) {
PARSE_ERROR("input file ended prematurely.");
exit(EXIT_FAILURE);
}
else if (c == '\n')
{
--j;
++LineNum;
}
else if (isspace(c))
--j;
else if ((dp = strchr(KeyTable, c)))
*cp++ = (dp - KeyTable);
else {
PARSE_ERROR("Invalid pixel value.");
exit(EXIT_FAILURE);
}
if (!GifQuietPrint)
fprintf(stderr, "\b\b\b\b%-4d", i);
}
if (!GifQuietPrint)
putc('\n', stderr);
NewImage->RasterBits = (unsigned char *) Raster;
}
else if (sscanf(buf, "comment"))
{
MakeExtension(NewImage, COMMENT_EXT_FUNC_CODE);
while (fgets(buf, sizeof(buf), txtin) != (char *)NULL)
if (strcmp(buf, "end\n") == 0)
break;
else
{
int Len;
buf[strlen(buf) - 1] = '\0';
Len = EscapeString(buf, buf);
if (AddExtensionBlock(NewImage, Len, (unsigned char *)buf) == GIF_ERROR) {
PARSE_ERROR("out of memory while adding comment block.");
exit(EXIT_FAILURE);
}
}
}
else if (sscanf(buf, "plaintext"))
{
MakeExtension(NewImage, PLAINTEXT_EXT_FUNC_CODE);
while (fgets(buf, sizeof(buf), txtin) != (char *)NULL)
if (strcmp(buf, "end\n") == 0)
break;
else
{
int Len;
buf[strlen(buf) - 1] = '\0';
Len = EscapeString(buf, buf);
if (AddExtensionBlock(NewImage, Len, (unsigned char *)buf) == GIF_ERROR) {
PARSE_ERROR("out of memory while adding plaintext block.");
exit(EXIT_FAILURE);
}
}
}
else if (sscanf(buf, "extension %02x", &ExtCode))
{
MakeExtension(NewImage, ExtCode);
while (fgets(buf, sizeof(buf), txtin) != (char *)NULL)
if (strcmp(buf, "end\n") == 0)
break;
else
{
int Len;
buf[strlen(buf) - 1] = '\0';
Len = EscapeString(buf, buf);
if (AddExtensionBlock(NewImage, Len, (unsigned char *)buf) == GIF_ERROR) {
PARSE_ERROR("out of memory while adding extension block.");
exit(EXIT_FAILURE);
}
}
}
else
{
(void) fputs(buf, stderr);
PARSE_ERROR("Syntax error in image description.");
exit(EXIT_FAILURE);
}
}
if (EGifSpew(GifFileOut) == GIF_ERROR)
HandleGifError(GifFileOut);
}
/******************************************************************************
* Interpret the command line and scan the given GIF file. *
******************************************************************************/
int main(int argc, char **argv)
{
int i, j, Size, Error, NumFiles, ExtCode, CodeSize, NumColors = 2, Color,
Count, ImageNum = 0, TextFlag = FALSE, SizeFlag = FALSE,
ImageNFlag = FALSE, BackGroundFlag = FALSE, HelpFlag = FALSE;
long Scaler, Histogram[256];
GifRecordType RecordType;
GifByteType *Extension, *CodeBlock;
char **FileName = NULL;
GifRowType Line;
GifFileType *GifFileIn = NULL, *GifFileOut = NULL;
/* Same image dimension vars for both Image & ImageN as only one allowed */
if ((Error = GAGetArgs(argc, argv, CtrlStr, &GifQuietPrint,
&TextFlag, &SizeFlag, &ImageWidth, &ImageHeight,
&ImageNFlag, &ImageN, &BackGroundFlag,
&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 ((GifFileIn = DGifOpenFileName(*FileName)) == NULL)
QuitGifError(GifFileIn, GifFileOut);
}
else {
/* Use the stdin instead: */
if ((GifFileIn = DGifOpenFileHandle(0)) == NULL)
QuitGifError(GifFileIn, GifFileOut);
}
for (i = 0; i < 256; i++) Histogram[i] = 0; /* Reset counters. */
/* Scan the content of the GIF file and load the image(s) in: */
do {
if (DGifGetRecordType(GifFileIn, &RecordType) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
switch (RecordType) {
case IMAGE_DESC_RECORD_TYPE:
if (DGifGetImageDesc(GifFileIn) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (GifFileIn->Image.ColorMap)
NumColors = GifFileIn->Image.ColorMap->ColorCount;
else if (GifFileIn->SColorMap)
NumColors = GifFileIn->SColorMap->ColorCount;
else
GIF_EXIT("Neither Screen nor Image color map exists.");
if ((ImageHeight / NumColors) * NumColors != ImageHeight)
GIF_EXIT("Image height specified not dividable by #colors.");
if (++ImageNum == ImageN) {
/* This is the image we should make histogram for: */
Line = (GifRowType) malloc(GifFileIn->Image.Width *
sizeof(GifPixelType));
GifQprintf("\n%s: Image %d at (%d, %d) [%dx%d]: ",
PROGRAM_NAME, ImageNum,
GifFileIn->Image.Left, GifFileIn->Image.Top,
GifFileIn->Image.Width, GifFileIn->Image.Height);
for (i = 0; i < GifFileIn->Image.Height; i++) {
if (DGifGetLine(GifFileIn, Line, GifFileIn->Image.Width)
== GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
for (j = 0; j < GifFileIn->Image.Width; j++)
Histogram[Line[j]]++;
GifQprintf("\b\b\b\b%-4d", i);
}
free((char *) Line);
}
else {
/* Skip the image: */
/* Now read image itself in decoded form as we dont */
/* really care what is there, and this is much faster. */
if (DGifGetCode(GifFileIn, &CodeSize, &CodeBlock) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
while (CodeBlock != NULL)
if (DGifGetCodeNext(GifFileIn, &CodeBlock) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
break;
case EXTENSION_RECORD_TYPE:
/* Skip any extension blocks in file: */
if (DGifGetExtension(GifFileIn, &ExtCode, &Extension) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
while (Extension != NULL) {
if (DGifGetExtensionNext(GifFileIn, &Extension) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
break;
case TERMINATE_RECORD_TYPE:
break;
default: /* Should be traps by DGifGetRecordType. */
break;
}
}
while (RecordType != TERMINATE_RECORD_TYPE);
/* We we requested to kill back ground count: */
if (BackGroundFlag) Histogram[GifFileIn->SBackGroundColor] = 0;
if (DGifCloseFile(GifFileIn) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* We may required to dump out the histogram as text file: */
if (TextFlag) {
for (i = 0; i < NumColors; i++)
printf("%12ld %3d\n", Histogram[i], i);
}
else {
/* Open stdout for the histogram output file: */
if ((GifFileOut = EGifOpenFileHandle(1)) == NULL)
QuitGifError(GifFileIn, GifFileOut);
/* Dump out screen descriptor to fit histogram dimensions: */
if (EGifPutScreenDesc(GifFileOut,
ImageWidth, ImageHeight, HISTO_BITS_PER_PIXEL, 0,
MakeMapObject(4, HistoColorMap)) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* Dump out image descriptor to fit histogram dimensions: */
if (EGifPutImageDesc(GifFileOut,
0, 0, ImageWidth, ImageHeight, FALSE, NULL) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* Prepare scan line for histogram file, and find scaler to scale */
/* histogram to be between 0 and ImageWidth: */
Line = (GifRowType) malloc(ImageWidth * sizeof(GifPixelType));
for (Scaler = 0, i = 0; i < NumColors; i++) if (Histogram[i] > Scaler)
Scaler = Histogram[i];
Scaler /= ImageWidth;
if (Scaler == 0) Scaler = 1; /* In case maximum is less than width. */
/* Dump out the image itself: */
for (Count = ImageHeight, i = 0, Color = 1; i < NumColors; i++) {
if ((Size = Histogram[i] / Scaler) > ImageWidth) Size = ImageWidth;
for (j = 0; j < Size; j++)
Line[j] = Color;
for (j = Size; j < ImageWidth; j++)
Line[j] = GifFileOut->SBackGroundColor;
/* Move to next color: */
if (++Color >= (1 << HISTO_BITS_PER_PIXEL)) Color = 1;
/* Dump this histogram entry as many times as required: */
for (j = 0; j < ImageHeight / NumColors; j++) {
if (EGifPutLine(GifFileOut, Line, ImageWidth) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
GifQprintf("\b\b\b\b%-4d", Count--);
}
}
if (EGifCloseFile(GifFileOut) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
return 0;
}
/******************************************************************************
* Interpret the command line and scan the given GIF file. *
******************************************************************************/
void main(int argc, char **argv)
{
int i, j, l, c, Error, LevelStep, LogNumLevels,
Count = 0, LevelsFlag = FALSE, SizeFlag = FALSE, HelpFlag = FALSE;
GifRowType Line;
GifColorType *ColorMap;
GifFileType *GifFile;
if ((Error = GAGetArgs(argc, argv, CtrlStr,
&GifQuitePrint, &LevelsFlag, &NumLevels,
&SizeFlag, &ImageWidth, &ImageHeight,
&HelpFlag)) != FALSE) {
GAPrintErrMsg(Error);
GAPrintHowTo(CtrlStr);
exit(1);
}
if (HelpFlag) {
fprintf(stderr, VersionStr);
GAPrintHowTo(CtrlStr);
exit(0);
}
/* 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 = (GifColorType *)
malloc(8 * NumLevels * sizeof(GifColorType))) == 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[c].Red = (i == 0 || i == 1 || i == 4 || i == 6) * l;
ColorMap[c].Green = (i == 0 || i == 2 || i == 4 || i == 5) * l;
ColorMap[c].Blue = (i == 0 || i == 3 || i == 5 || i == 6) * l;
}
if (EGifPutScreenDesc(GifFile,
ImageWidth, ImageHeight, LogNumLevels, 0, LogNumLevels, ColorMap)
== GIF_ERROR)
QuitGifError(GifFile);
/* Dump out the image descriptor: */
if (EGifPutImageDesc(GifFile,
0, 0, ImageWidth, ImageHeight, FALSE, LogNumLevels, NULL) == GIF_ERROR)
QuitGifError(GifFile);
GifQprintf("\n%s: Image 1 at (%d, %d) [%dx%d]: ",
PROGRAM_NAME, GifFile -> ILeft, GifFile -> ITop,
GifFile -> IWidth, GifFile -> IHeight);
/* 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);
}
/******************************************************************************
* Interpret the command line and scan the given GIF file. *
******************************************************************************/
int main(int argc, char **argv)
{
int i, Error, NumFiles, ExtCode, CodeSize, ImageNum = 0,
ImageFlag = FALSE, ImageNFlag = FALSE, ImageN, ImageX1, ImageY1,
ImageX2, ImageY2, ImageWidth, ImageDepth,
Complement = FALSE, HelpFlag = FALSE;
GifRecordType RecordType;
GifByteType *Extension, *CodeBlock;
char **FileName = NULL;
GifRowType Line;
GifFileType *GifFileIn = NULL, *GifFileOut = NULL;
/* Same image dimension vars for both Image & ImageN as only one allowed.*/
if ((Error = GAGetArgs(argc, argv, CtrlStr, &GifQuietPrint, &Complement,
&ImageFlag, &ImageX1, &ImageY1, &ImageX2, &ImageY2,
&ImageNFlag, &ImageN, &ImageX1, &ImageY1, &ImageX2, &ImageY2,
&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);
}
/* Test to make sure exactly one of ImageFlag & ImageNFlag is set: */
if ((ImageFlag && ImageNFlag) || (!ImageFlag && !ImageNFlag)) {
GIF_MESSAGE("Exactly one of [-i ...] && [-n ...] please.");
GAPrintHowTo(CtrlStr);
exit(EXIT_FAILURE);
}
if (ImageFlag) ImageN = 1; /* Its first image we are after. */
/* Make sure the first coordinates of clipping box are smaller: */
if (ImageX1 > ImageX2) {
i = ImageX1;
ImageX1 = ImageX2;
ImageX2 = i;
}
if (ImageY1 > ImageY2) {
i = ImageX1;
ImageY1 = ImageY2;
ImageY2 = i;
}
if (NumFiles == 1) {
if ((GifFileIn = DGifOpenFileName(*FileName)) == NULL)
QuitGifError(GifFileIn, GifFileOut);
}
else {
/* Use the stdin instead: */
if ((GifFileIn = DGifOpenFileHandle(0)) == NULL)
QuitGifError(GifFileIn, GifFileOut);
}
/* Open stdout for the output file: */
if ((GifFileOut = EGifOpenFileHandle(1)) == NULL)
QuitGifError(GifFileIn, GifFileOut);
/* Width and depth of clipped image. */
if (!Complement)
ImageWidth = ImageX2 - ImageX1 + 1;
else
ImageWidth = GifFileIn->SWidth
- (ImageX2 != ImageX1) * (ImageX2 - ImageX1 + 1);
if (!Complement)
ImageDepth = ImageY2 - ImageY1 + 1;
else
ImageDepth = GifFileIn->SHeight
- (ImageY2 != ImageY1) * (ImageY2 - ImageY1 + 1);
/* And dump out exactly same screen information: */
if (EGifPutScreenDesc(GifFileOut,
GifFileIn->SWidth, GifFileIn->SHeight,
GifFileIn->SColorResolution, GifFileIn->SBackGroundColor,
GifFileIn->SColorMap) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* Scan the content of the GIF file and load the image(s) in: */
do {
if (DGifGetRecordType(GifFileIn, &RecordType) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
switch (RecordType) {
case IMAGE_DESC_RECORD_TYPE:
if (DGifGetImageDesc(GifFileIn) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (++ImageNum == ImageN) {
/* We can handle only non interlaced images here: */
if (GifFileIn->Image.Interlace)
GIF_EXIT("Image to clip is interlaced - use GifInter first.");
/* This is the image we should clip - test sizes and */
/* dump out new clipped screen descriptor if o.k. */
if (GifFileIn->Image.Width <= ImageX2 ||
GifFileIn->Image.Height <= ImageY2)
GIF_EXIT("Image is smaller than given clip dimensions.");
/* Put the image descriptor to out file: */
if (EGifPutImageDesc(GifFileOut,
GifFileIn->Image.Left, GifFileIn->Image.Top,
ImageWidth, ImageDepth,
FALSE, GifFileIn->Image.ColorMap) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* o.k. - read the image and clip it: */
Line = (GifRowType) malloc(GifFileIn->Image.Width *
sizeof(GifPixelType));
GifQprintf("\n%s: Image %d at (%d, %d) [%dx%d]: ",
PROGRAM_NAME, ImageNum,
GifFileIn->Image.Left, GifFileIn->Image.Top,
GifFileIn->Image.Width, GifFileIn->Image.Height);
/* Skip lines below ImageY1: */
for (i = 0; i < ImageY1; i++) {
if (DGifGetLine(GifFileIn, Line, GifFileIn->Image.Width)
== GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (Complement) {
if (ImageX1 == ImageX2) {
/* don't remove any vertical band */
if (EGifPutLine(GifFileOut, Line,
ImageWidth) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
else
{
if (EGifPutLine(GifFileOut, Line,
ImageX1) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (EGifPutLine(GifFileOut,
&Line[ImageX2 + 1],
GifFileIn->SWidth - (ImageX2 + 1)
) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
}
GifQprintf("\b\b\b\b%-4d", i);
}
/* Clip the lines from ImageY1 to ImageY2 (to X1 - X2): */
for (i = ImageY1; i <= ImageY2; i++) {
if (DGifGetLine(GifFileIn, Line, GifFileIn->Image.Width)
== GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (!Complement)
if (EGifPutLine(GifFileOut, &Line[ImageX1],
ImageWidth) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
GifQprintf("\b\b\b\b%-4d", i);
}
/* Skip lines above ImageY2: */
for (i = ImageY2 + 1; i < GifFileIn->Image.Height; i++) {
if (DGifGetLine(GifFileIn, Line, GifFileIn->Image.Width)
== GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (Complement) {
if (ImageX1 == ImageX2) {
/* don't remove any vertical band */
if (EGifPutLine(GifFileOut, Line,
ImageWidth) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
else
{
if (EGifPutLine(GifFileOut, Line,
ImageX1) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (EGifPutLine(GifFileOut,
&Line[ImageX2 + 1],
GifFileIn->SWidth - (ImageX2 + 1)
) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
}
GifQprintf("\b\b\b\b%-4d", i);
}
free((char *) Line);
}
else {
/* Copy the image as is (we dont modify this one): */
if (EGifPutImageDesc(GifFileOut,
GifFileIn->Image.Left, GifFileIn->Image.Top,
GifFileIn->Image.Width, GifFileIn->Image.Height,
GifFileIn->Image.Interlace,
GifFileIn->Image.ColorMap) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* Now read image itself in decoded form as we dont */
/* really care what is there, and this is much faster. */
if (DGifGetCode(GifFileIn, &CodeSize, &CodeBlock) == GIF_ERROR
|| EGifPutCode(GifFileOut, CodeSize, CodeBlock) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
while (CodeBlock != NULL)
if (DGifGetCodeNext(GifFileIn, &CodeBlock) == GIF_ERROR ||
EGifPutCodeNext(GifFileOut, CodeBlock) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
break;
case EXTENSION_RECORD_TYPE:
/* Skip any extension blocks in file: */
if (DGifGetExtension(GifFileIn, &ExtCode, &Extension) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (EGifPutExtension(GifFileOut, ExtCode, Extension[0],
Extension) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* No support to more than one extension blocks, so discard: */
while (Extension != NULL) {
if (DGifGetExtensionNext(GifFileIn, &Extension) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
break;
case TERMINATE_RECORD_TYPE:
break;
default: /* Should be traps by DGifGetRecordType. */
break;
}
}
while (RecordType != TERMINATE_RECORD_TYPE);
if (DGifCloseFile(GifFileIn) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (EGifCloseFile(GifFileOut) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
return 0;
}
/******************************************************************************
Interpret the command line and generate the given GIF file.
******************************************************************************/
int main(int argc, char **argv)
{
int i, j, l, GifNoisyPrint, ColorMapSize, ErrorCode;
bool Error, BackGroundFlag = false, HelpFlag = false;
char Line[LINE_LEN];
GifRowType RasterBuffer[GIF_FONT_HEIGHT];
ColorMapObject *ColorMap;
GifFileType *GifFile;
GifColorType ScratchMap[256];
int red, green, blue;
if ((Error = GAGetArgs(argc, argv, CtrlStr,
&GifNoisyPrint,
&BackGroundFlag, &BackGround,
&HelpFlag)) != false) {
GAPrintErrMsg(Error);
GAPrintHowTo(CtrlStr);
exit(EXIT_FAILURE);
}
if (HelpFlag) {
(void)fprintf(stderr, VersionStr, GIFLIB_MAJOR, GIFLIB_MINOR);
GAPrintHowTo(CtrlStr);
exit(EXIT_SUCCESS);
}
/* Allocate the raster buffer for GIF_FONT_HEIGHT scan lines. */
for (i = 0; i < GIF_FONT_HEIGHT; i++)
{
if ((RasterBuffer[i] = (GifRowType) malloc(sizeof(GifPixelType) *
IMAGEWIDTH)) == NULL)
GIF_EXIT("Failed to allocate memory required, aborted.");
}
/* Open stdout for the output file: */
if ((GifFile = EGifOpenFileHandle(1, &ErrorCode)) == NULL) {
PrintGifError(ErrorCode);
exit(EXIT_FAILURE);
}
/* Read the color map in ColorFile into this color map: */
ColorMapSize = 0;
while (fscanf(stdin,
"%*3d %3d %3d %3d\n",
&red, &green, &blue) == 3) {
ScratchMap[ColorMapSize].Red = red;
ScratchMap[ColorMapSize].Green = green;
ScratchMap[ColorMapSize].Blue = blue;
ColorMapSize++;
}
if ((ColorMap = GifMakeMapObject(1 << GifBitSize(ColorMapSize), ScratchMap)) == NULL)
GIF_EXIT("Failed to allocate memory required, aborted.");
if (EGifPutScreenDesc(GifFile,
IMAGEWIDTH, ColorMapSize * GIF_FONT_HEIGHT,
GifBitSize(ColorMapSize),
BackGround, ColorMap) == GIF_ERROR)
QuitGifError(GifFile);
/* Dump out the image descriptor: */
if (EGifPutImageDesc(GifFile,
0, 0, IMAGEWIDTH, ColorMapSize * GIF_FONT_HEIGHT, 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);
for (i = l = 0; i < ColorMap->ColorCount; i++) {
(void)snprintf(Line, sizeof(Line),
"Color %-3d: [%-3d, %-3d, %-3d] ", i,
ColorMap->Colors[i].Red,
ColorMap->Colors[i].Green,
ColorMap->Colors[i].Blue);
GenRasterTextLine(RasterBuffer, Line, IMAGEWIDTH, i);
for (j = 0; j < GIF_FONT_HEIGHT; j++) {
if (EGifPutLine(GifFile, RasterBuffer[j], IMAGEWIDTH) == GIF_ERROR)
QuitGifError(GifFile);
GifQprintf("\b\b\b\b%-4d", l++);
}
}
if (EGifCloseFile(GifFile, &ErrorCode) == GIF_ERROR)
{
PrintGifError(ErrorCode);
if (GifFile != NULL) {
EGifCloseFile(GifFile, NULL);
}
exit(EXIT_FAILURE);
}
return 0;
}
static int ImageToGif(UCHAR **Image,int ImageWidth,int ImageHeight,
char *GifFileName,int Paleta,int Laplas)
{
int NumLevels=255,i; /* Konwersja ekranu wirtualnego do postaci */
GifColorType *ColorMap; /* obrazu w formacie GIF */
GifFileType *GifFile; /* Oparte na bibliotece giflib */
if(prn==ON)
fprintf(stdout,"<<< TWORZENIE OBRAZU W FORMACIE GIF'A : %s >>>\n",GifFileName);
if((GifFile=EGifOpenFileName(GifFileName,0))==NULL)
{
QuitGifError(GifFile);
return -1;
}
if((ColorMap=(GifColorType *)malloc(NumLevels*sizeof(GifColorType)))==NULL)
{
fprintf(stderr,"Failed to allocate memory required, aborted.\n");
QuitGifError(GifFile);
return -1;
}
if(prn==ON)
fprintf(stdout,"<<< GENERACJA PALETY BARW (%s) >>>\n",
((Paleta==COLOR) ? "TERM" :
( (Paleta==INVERT_GRAY) ? "INVERT GARY" : "GRAY") ) );
MakePalette(ColorMap,Paleta,Laplas);
if(EGifPutScreenDesc(GifFile,ImageWidth,ImageHeight,8,0,
8,ColorMap)==GIF_ERROR)
{
QuitGifError(GifFile);
free((void *)ColorMap);
return -1;
}
if(EGifPutImageDesc(GifFile,0,0,ImageWidth,ImageHeight,
FALSE,8,NULL)==GIF_ERROR)
{
QuitGifError(GifFile);
free((void *)ColorMap);
return -1;
}
if(prn==ON)
fprintf(stdout,"<<< KODOWANIE OBRAZU >>>\n");
for(i=0 ; i<ImageHeight ; i++)
if(EGifPutLine(GifFile,Image[i],ImageWidth)==GIF_ERROR)
{
QuitGifError(GifFile);
free((void *)ColorMap);
return -1;
}
if(EGifCloseFile(GifFile)==GIF_ERROR)
{
QuitGifError(GifFile);
free((void *)ColorMap);
return -1;
}
free((void *)ColorMap);
return 0;
}
/******************************************************************************
Main sequence
******************************************************************************/
int main(int argc, char **argv)
{
GifFileType *GifFileIn = NULL, *GifFileOut = NULL;
GifRecordType RecordType;
int CodeSize, ExtCode, ErrorCode;
GifByteType *CodeBlock, *Extension;
/*
* Command-line processing goes here.
*/
/* Use stdin as input (note this also read screen descriptor in: */
if ((GifFileIn = DGifOpenFileHandle(0, &ErrorCode)) == NULL) {
PrintGifError(ErrorCode);
exit(EXIT_FAILURE);
}
/* Use the stdout as output: */
if ((GifFileOut = EGifOpenFileHandle(1, &ErrorCode)) == NULL) {
PrintGifError(ErrorCode);
exit(EXIT_FAILURE);
}
/* And dump out its screen information: */
if (EGifPutScreenDesc(GifFileOut,
GifFileIn->SWidth, GifFileIn->SHeight,
GifFileIn->SColorResolution, GifFileIn->SBackGroundColor,
GifFileIn->SColorMap) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* Scan the content of the input GIF file and load the image(s) in: */
do {
if (DGifGetRecordType(GifFileIn, &RecordType) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
switch (RecordType) {
case IMAGE_DESC_RECORD_TYPE:
if (DGifGetImageDesc(GifFileIn) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* Put image descriptor to out file: */
if (EGifPutImageDesc(GifFileOut,
GifFileIn->Image.Left, GifFileIn->Image.Top,
GifFileIn->Image.Width, GifFileIn->Image.Height,
GifFileIn->Image.Interlace,
GifFileIn->Image.ColorMap) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* Now read image itself in decoded form as we dont really */
/* care what we have there, and this is much faster. */
if (DGifGetCode(GifFileIn, &CodeSize, &CodeBlock) == GIF_ERROR ||
EGifPutCode(GifFileOut, CodeSize, CodeBlock) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
while (CodeBlock != NULL) {
if (DGifGetCodeNext(GifFileIn, &CodeBlock) == GIF_ERROR ||
EGifPutCodeNext(GifFileOut, CodeBlock) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
break;
case EXTENSION_RECORD_TYPE:
/* pass through extension records */
if (DGifGetExtension(GifFileIn, &ExtCode, &Extension) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (EGifPutExtensionLeader(GifFileOut, ExtCode) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (EGifPutExtensionBlock(GifFileOut,
Extension[0],
Extension + 1) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
while (Extension != NULL) {
if (DGifGetExtensionNext(GifFileIn, &Extension)==GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (Extension != NULL)
if (EGifPutExtensionBlock(GifFileOut,
Extension[0],
Extension + 1) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
if (EGifPutExtensionTrailer(GifFileOut) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
break;
case TERMINATE_RECORD_TYPE:
break;
default: /* Should be trapped by DGifGetRecordType */
break;
}
}
while (RecordType != TERMINATE_RECORD_TYPE);
if (DGifCloseFile(GifFileIn, &ErrorCode) == GIF_ERROR)
{
PrintGifError(ErrorCode);
if (GifFileIn != NULL) {
EGifCloseFile(GifFileIn, NULL);
}
exit(EXIT_FAILURE);
}
if (EGifCloseFile(GifFileOut, &ErrorCode) == GIF_ERROR)
{
PrintGifError(ErrorCode);
if (GifFileOut != NULL) {
EGifCloseFile(GifFileOut, NULL);
}
exit(EXIT_FAILURE);
}
return 0;
}
/******************************************************************************
* Perform the assembly operation - take few input files into one output. *
******************************************************************************/
static void DoAssembly(int NumFiles, char **FileNames)
{
int i, ExtCode, CodeSize;
GifRecordType RecordType;
GifByteType *Extension, *CodeBlock;
GifFileType *GifFileIn = NULL, *GifFileOut = NULL;
/* Open stdout for the output file: */
if ((GifFileOut = EGifOpenFileHandle(1)) == NULL)
QuitGifError(GifFileIn, GifFileOut);
/* Scan the content of the GIF file and load the image(s) in: */
for (i = 0; i < NumFiles; i++) {
if ((GifFileIn = DGifOpenFileName(FileNames[i])) == NULL)
QuitGifError(GifFileIn, GifFileOut);
/* And dump out screen descriptor iff its first image. */
if (i == 0)
if (EGifPutScreenDesc(GifFileOut,
GifFileIn -> SWidth, GifFileIn -> SHeight,
GifFileIn -> SColorResolution, GifFileIn -> SBackGroundColor,
GifFileIn -> SBitsPerPixel, GifFileIn -> SColorMap) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
do {
if (DGifGetRecordType(GifFileIn, &RecordType) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
switch (RecordType) {
case IMAGE_DESC_RECORD_TYPE:
if (DGifGetImageDesc(GifFileIn) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* Put image descriptor to out file: */
if (EGifPutImageDesc(GifFileOut,
GifFileIn -> ILeft, GifFileIn -> ITop,
GifFileIn -> IWidth, GifFileIn -> IHeight,
GifFileIn -> IInterlace, GifFileIn -> IBitsPerPixel,
GifFileIn -> IColorMap) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* Now read image itself in decoded form as we dont */
/* dont care what is there, and this is much faster. */
if (DGifGetCode(GifFileIn, &CodeSize, &CodeBlock) == GIF_ERROR
|| EGifPutCode(GifFileOut, CodeSize, CodeBlock) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
while (CodeBlock != NULL)
if (DGifGetCodeNext(GifFileIn, &CodeBlock) == GIF_ERROR ||
EGifPutCodeNext(GifFileOut, CodeBlock) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
break;
case EXTENSION_RECORD_TYPE:
/* Skip any extension blocks in file: */
if (DGifGetExtension(GifFileIn, &ExtCode, &Extension)
== GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (EGifPutExtension(GifFileOut, ExtCode, Extension[0],
Extension) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* No support to more than one extension blocks, discard.*/
while (Extension != NULL)
if (DGifGetExtensionNext(GifFileIn, &Extension)
== GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
break;
case TERMINATE_RECORD_TYPE:
break;
default: /* Should be traps by DGifGetRecordType. */
break;
}
}
while (RecordType != TERMINATE_RECORD_TYPE);
if (DGifCloseFile(GifFileIn) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
if (EGifCloseFile(GifFileOut) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
/******************************************************************************
Interpret the command line and scan the given GIF file.
******************************************************************************/
int main(int argc, char **argv)
{
unsigned int Ratio;
int i, l, LevelWidth, LogNumLevels, ErrorCode, Count = 0;
bool Error, FlipDir, DoAllMaximum = false,
DirectionFlag = false, LevelsFlag = false, ColorFlag = false,
MinFlag = false, MaxFlag = false, SizeFlag = false, HelpFlag = false;
GifPixelType Color;
char *DirectionStr = DEFAULT_DIR;
GifRowType Line;
ColorMapObject *ColorMap;
GifFileType *GifFile;
if ((Error = GAGetArgs(argc, argv, CtrlStr, &GifNoisyPrint,
&DirectionFlag, &DirectionStr, &LevelsFlag, &NumLevels,
&ColorFlag, &RedColor, &GreenColor, &BlueColor,
&MinFlag, &MinimumIntensity, &MaxFlag, &MaximumIntensity,
&SizeFlag, &ImageWidth, &ImageHeight,
&HelpFlag)) != false) {
GAPrintErrMsg(Error);
GAPrintHowTo(CtrlStr);
exit(EXIT_FAILURE);
}
if (HelpFlag) {
(void)fprintf(stderr, VersionStr, GIFLIB_MAJOR, GIFLIB_MINOR);
GAPrintHowTo(CtrlStr);
exit(EXIT_SUCCESS);
}
/* Make sure intensities are in the right range: */
if (MinimumIntensity < 0 || MinimumIntensity > 100 ||
MaximumIntensity < 0 || MaximumIntensity > 100)
GIF_EXIT("Intensities (-m or -M options) are not in [0..100] range (percent).");
/* Convert DirectionStr to our local representation: */
Direction = DIR_NONE;
FlipDir = false;
/* Make sure it's upper case. */
for (i = 0; i < (int)strlen(DirectionStr); i++)
if (islower(DirectionStr[i]))
DirectionStr[i] = toupper(DirectionStr[i]);
switch(DirectionStr[0]) {
case 'T': /* Top or North */
case 'N':
if (strlen(DirectionStr) < 2)
Direction = DIR_TOP;
else
switch(DirectionStr[1]) {
case 'R':
case 'E':
Direction = DIR_TOP_RIGHT;
break;
case 'L':
case 'W':
Direction = DIR_TOP_LEFT;
FlipDir = true;
break;
}
break;
case 'R': /* Right or East */
case 'E':
Direction = DIR_RIGHT;
break;
case 'B': /* Bottom or South */
case 'S':
if (strlen(DirectionStr) < 2) {
Direction = DIR_BOT;
FlipDir = true;
}
else
switch(DirectionStr[1]) {
case 'R':
case 'E':
Direction = DIR_BOT_RIGHT;
break;
case 'L':
case 'W':
Direction = DIR_BOT_LEFT;
FlipDir = true;
break;
}
break;
case 'L': /* Left or West */
case 'W':
Direction = DIR_LEFT;
FlipDir = true;
break;
}
if (Direction == DIR_NONE)
GIF_EXIT("Direction requested (-d option) is weird!");
/* We are going to handle only TOP, TOP_RIGHT, RIGHT, BOT_RIGHT so flip */
/* the complement cases (TOP <-> BOT for example) by flipping the */
/* Color i with color (NumLevels - i - 1). */
if (FlipDir) {
switch (Direction) {
case DIR_BOT:
Direction = DIR_TOP;
break;
case DIR_BOT_LEFT:
Direction = DIR_TOP_RIGHT;
break;
case DIR_LEFT:
Direction = DIR_RIGHT;
break;
case DIR_TOP_LEFT:
Direction = DIR_BOT_RIGHT;
break;
}
}
/* If binary mask is requested (special case): */
if (MinimumIntensity == 100 && MaximumIntensity == 100 && NumLevels == 2) {
MinimumIntensity = 0;
DoAllMaximum = true;
Direction = DIR_RIGHT;
}
/* Make sure colors are in the right range: */
if (RedColor > 255 || GreenColor > 255 || BlueColor > 255)
GIF_EXIT("Colors are not in the ragne [0..255].");
/* Make sure number of levels is power of 2 (up to 8 bits per pixel). */
for (i = 1; i < 8; i++) if (NumLevels == (1 << i)) break;
if (i == 8) GIF_EXIT("#Lvls (-l option) is not power of 2.");
LogNumLevels = i;
/* Open stdout for the output file: */
if ((GifFile = EGifOpenFileHandle(1, &ErrorCode)) == NULL) {
PrintGifError(ErrorCode);
exit(EXIT_FAILURE);
}
/* Dump out screen description with given size and generated color map: */
if ((ColorMap = GifMakeMapObject(NumLevels, NULL)) == NULL)
GIF_EXIT("Failed to allocate memory required, aborted.");
for (i = 1; i <= NumLevels; i++) {
/* Ratio will be in the range of 0..100 for required intensity: */
Ratio = (MaximumIntensity * (i * (256 / NumLevels)) +
MinimumIntensity * ((NumLevels - i) * (256 / NumLevels))) /
256;
ColorMap->Colors[i-1].Red = (RedColor * Ratio) / 100;
ColorMap->Colors[i-1].Green = (GreenColor * Ratio) / 100;
ColorMap->Colors[i-1].Blue = (BlueColor * Ratio) / 100;
}
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 twice as big as image is, as we are going to */
/* shift along it, while we dump the scan lines: */
if ((Line = (GifRowType) malloc(sizeof(GifPixelType) * ImageWidth * 2)) == NULL)
GIF_EXIT("Failed to allocate memory required, aborted.");
if (Direction == DIR_TOP) {
int LevelHeight;
/* We must evaluate the line each time level is changing: */
LevelHeight = ImageHeight / NumLevels;
for (Color = NumLevels, i = l = 0; i < ImageHeight; i++) {
if (i == l) {
int j;
/* Time to update the line to next color level: */
if (Color != 0) Color--;
for (j = 0; j < ImageWidth; j++)
Line[j] = (FlipDir ? NumLevels - Color - 1 : Color);
l += LevelHeight;
}
if (EGifPutLine(GifFile, Line, ImageWidth) == GIF_ERROR)
QuitGifError(GifFile);
GifQprintf("\b\b\b\b%-4d", Count++);
}
}
else if (Direction == DIR_RIGHT) {
/* We pre-prepare the scan lines as going from color zero to maximum */
/* color and dump the same scan line Height times: */
/* Note this case should handle the Boolean Mask special case. */
LevelWidth = ImageWidth / NumLevels;
if (DoAllMaximum) {
/* Special case - do all in maximum color: */
for (i = 0; i < ImageWidth; i++) Line[i] = 1;
}
else {
for (Color = i = 0, l = LevelWidth; i < ImageWidth; i++, l--) {
if (l == 0) {
l = LevelWidth;
if (Color < NumLevels - 1) Color++;
}
Line[i] = (FlipDir ? NumLevels - Color - 1 : Color);
}
}
for (i = 0; i < ImageHeight; i++) {
/* coverity[uninit_use_in_call] */
if (EGifPutLine(GifFile, Line, ImageWidth) == GIF_ERROR)
QuitGifError(GifFile);
GifQprintf("\b\b\b\b%-4d", Count++);
}
}
else {
int Accumulator, StartX, StepX;
/* We are in one of the TOP_RIGHT, BOT_RIGHT cases: we will */
/* initialize the Line with its double ImageWidth length from the */
/* minimum intensity to the maximum intensity and shift along it */
/* while we go along the image height. */
LevelWidth = ImageWidth * 2 / NumLevels;
for (Color = i = 0, l = LevelWidth; i < ImageWidth * 2; i++, l--) {
if (l == 0) {
l = LevelWidth;
if (Color < NumLevels - 1) Color++;
}
Line[i] = (FlipDir ? NumLevels - Color - 1 : Color);
}
/* We need to implement a DDA to know how much to shift Line while */
/* we go down along image height. we set the parameters for it now: */
Accumulator = 0;
switch(Direction) {
case DIR_TOP_RIGHT:
StartX = ImageWidth;
StepX = -1;
break;
case DIR_BOT_RIGHT:
default:
StartX = 0;
StepX = 1;
break;
}
/* Time to dump information out: */
for (i = 0; i < ImageHeight; i++) {
if (EGifPutLine(GifFile, &Line[StartX], ImageWidth) == GIF_ERROR)
QuitGifError(GifFile);
GifQprintf("\b\b\b\b%-4d", Count++);
if ((Accumulator += ImageWidth) > ImageHeight) {
while (Accumulator > ImageHeight) {
Accumulator -= ImageHeight;
StartX += StepX;
}
if (Direction < 0) Direction = 0;
if (Direction > ImageWidth) Direction = ImageWidth;
}
}
}
if (EGifCloseFile(GifFile, &ErrorCode) == GIF_ERROR)
{
PrintGifError(ErrorCode);
exit(EXIT_FAILURE);
}
return 0;
}
/******************************************************************************
* Interpret the command line and scan the given GIF file. *
******************************************************************************/
int main(int argc, char **argv)
{
int Error, NumFiles, ExtCode, CodeSize, ImageNum = 0,
ImageNFlag = FALSE, ImageN, HelpFlag = FALSE, HasGIFOutput;
GifRecordType RecordType;
GifByteType *Extension, *CodeBlock;
char **FileName = NULL, *ColorFileName, *TranslateFileName;
GifFileType *GifFileIn = NULL, *GifFileOut = NULL;
if ((Error = GAGetArgs(argc, argv, CtrlStr, &GifQuietPrint, &SaveFlag,
&TranslateFlag, &TranslateFileName,
&LoadFlag, &ColorFileName,
&GammaFlag, &Gamma, &ImageNFlag, &ImageN,
&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 (SaveFlag + LoadFlag + GammaFlag + TranslateFlag > 1)
GIF_EXIT("Can not handle more than one of -s -l, -t, or -g at the same time.");
if (NumFiles == 1) {
if ((GifFileIn = DGifOpenFileName(*FileName)) == NULL)
QuitGifError(GifFileIn, GifFileOut);
}
else {
/* Use stdin instead: */
if ((GifFileIn = DGifOpenFileHandle(0)) == NULL)
QuitGifError(GifFileIn, GifFileOut);
}
if (SaveFlag) {
/* We are dumping out the color map as text file to stdout: */
ColorFile = stdout;
}
else {
if (TranslateFlag) {
/* We are loading new color map from specified file: */
if ((TranslateFile = fopen(TranslateFileName, "rt")) == NULL)
GIF_EXIT("Failed to open specified color translation file.");
}
if (LoadFlag) {
/* We are loading new color map from specified file: */
if ((ColorFile = fopen(ColorFileName, "rt")) == NULL)
GIF_EXIT("Failed to open specified color map file.");
}
}
if ((HasGIFOutput = (LoadFlag || TranslateFlag || GammaFlag)) != 0) {
/* Open stdout for GIF output file: */
if ((GifFileOut = EGifOpenFileHandle(1)) == NULL)
QuitGifError(GifFileIn, GifFileOut);
}
if (!ImageNFlag) {
/* We are suppose to modify the screen color map, so do it: */
GifFileIn->SColorMap = ModifyColorMap(GifFileIn->SColorMap);
if (!HasGIFOutput) {
/* We can quit here, as we have the color map: */
if (GifFileIn != NULL) DGifCloseFile(GifFileIn);
fclose(ColorFile);
exit(EXIT_SUCCESS);
}
}
/* And dump out its new possible repositioned screen information: */
if (HasGIFOutput)
if (EGifPutScreenDesc(GifFileOut,
GifFileIn->SWidth, GifFileIn->SHeight,
GifFileIn->SColorResolution, GifFileIn->SBackGroundColor,
GifFileIn->SColorMap) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* Scan the content of the GIF file and load the image(s) in: */
do {
if (DGifGetRecordType(GifFileIn, &RecordType) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
switch (RecordType) {
case IMAGE_DESC_RECORD_TYPE:
if (DGifGetImageDesc(GifFileIn) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if ((++ImageNum == ImageN) && ImageNFlag) {
/* We are suppose to modify this image color map, do it: */
GifFileIn->SColorMap =ModifyColorMap(GifFileIn->SColorMap);
if (!HasGIFOutput) {
/* We can quit here, as we have the color map: */
if (GifFileIn != NULL) DGifCloseFile(GifFileIn);
fclose(ColorFile);
exit(EXIT_SUCCESS);
}
}
if (HasGIFOutput)
if (EGifPutImageDesc(GifFileOut,
GifFileIn->Image.Left, GifFileIn->Image.Top,
GifFileIn->Image.Width, GifFileIn->Image.Height,
GifFileIn->Image.Interlace,
GifFileIn->Image.ColorMap) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (!TranslateFlag || (ImageNFlag && (ImageN != ImageNum)))
{
/* Now read image itself in decoded form as we don't */
/* really care what we have there, and this is much */
/* faster. */
if (DGifGetCode(GifFileIn, &CodeSize, &CodeBlock) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (HasGIFOutput)
if (EGifPutCode(GifFileOut, CodeSize, CodeBlock) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
while (CodeBlock != NULL) {
if (DGifGetCodeNext(GifFileIn, &CodeBlock) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (HasGIFOutput)
if (EGifPutCodeNext(GifFileOut, CodeBlock) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
}
else /* we need to mung pixels intices */
{
int i;
register GifPixelType *cp;
GifPixelType *Line
= (GifPixelType *) malloc(GifFileIn->Image.Width *
sizeof(GifPixelType));
for (i = 0; i < GifFileIn->Image.Height; i++) {
if (DGifGetLine(GifFileIn, Line,GifFileIn->Image.Width)
== GIF_ERROR) {
QuitGifError(GifFileIn, GifFileOut);
}
/* translation step goes here */
for (cp = Line; cp < Line+GifFileIn->Image.Width; cp++)
*cp = Translation[*cp];
if (EGifPutLine(GifFileOut,
Line, GifFileIn->Image.Width)
== GIF_ERROR) {
QuitGifError(GifFileIn, GifFileOut);
}
}
free((char *) Line);
}
break;
case EXTENSION_RECORD_TYPE:
/* Skip any extension blocks in file: */
if (DGifGetExtension(GifFileIn, &ExtCode, &Extension) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (HasGIFOutput)
if (EGifPutExtension(GifFileOut, ExtCode, Extension[0],
Extension) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
/* No support to more than one extension blocks, so discard: */
while (Extension != NULL) {
if (DGifGetExtensionNext(GifFileIn, &Extension) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
}
break;
case TERMINATE_RECORD_TYPE:
break;
default: /* Should be traps by DGifGetRecordType. */
break;
}
}
while (RecordType != TERMINATE_RECORD_TYPE);
if (DGifCloseFile(GifFileIn) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
if (HasGIFOutput)
if (EGifCloseFile(GifFileOut) == GIF_ERROR)
QuitGifError(GifFileIn, GifFileOut);
return 0;
}
/******************************************************************************
Interpret the command line and generate the given GIF file.
******************************************************************************/
int main(int argc, char **argv)
{
int i, j, l, ImageWidth, ImageHeight, NumOfLines, LogNumLevels,
ErrorCode, NumLevels, ColorMapSize = 1,
ForeGroundIndex = DEFAULT_FG_INDEX;
bool Error, ClrMapSizeFlag = false, ForeGroundFlag = false,
TextLineFlag = false, HelpFlag = false, ColorFlag = false;
char *TextLines[MAX_NUM_TEXT_LINES], Line[LINE_LEN];
GifRowType RasterBuffer[GIF_FONT_HEIGHT];
ColorMapObject *ColorMap;
GifFileType *GifFile;
if ((Error = GAGetArgs(argc, argv, CtrlStr,
&GifNoisyPrint, &ClrMapSizeFlag, &ColorMapSize,
&ForeGroundFlag, &ForeGroundIndex,
&ColorFlag, &RedColor, &GreenColor, &BlueColor,
&TextLineFlag, &TextLines[0],
&HelpFlag)) != false) {
GAPrintErrMsg(Error);
GAPrintHowTo(CtrlStr);
exit(EXIT_FAILURE);
}
if (HelpFlag) {
(void)fprintf(stderr, VersionStr, GIFLIB_MAJOR, GIFLIB_MINOR);
GAPrintHowTo(CtrlStr);
exit(EXIT_SUCCESS);
}
if (ForeGroundIndex > 255 || ForeGroundIndex < 1)
GIF_EXIT("Foregound (-f) should be in the range 1..255, aborted.");
if (ColorMapSize > 8 || ColorMapSize < 1)
GIF_EXIT("ColorMapSize (-s) should be in the range 1..8, aborted.");
if (TextLineFlag) {
NumOfLines = 1;
ImageHeight = GIF_FONT_HEIGHT;
ImageWidth = GIF_FONT_WIDTH * strlen(TextLines[0]);
}
else {
NumOfLines = l = 0;
while (fgets(Line, LINE_LEN - 1, stdin)) {
for (i = strlen(Line); i > 0 && Line[i-1] <= ' '; i--);
Line[i] = 0;
if (l < i) l = i;
TextLines[NumOfLines++] = strdup(Line);
if (NumOfLines == MAX_NUM_TEXT_LINES)
GIF_EXIT("Input file has too many lines, aborted.");
}
if (NumOfLines == 0)
GIF_EXIT("No input text, aborted.");
ImageHeight = GIF_FONT_HEIGHT * NumOfLines;
ImageWidth = GIF_FONT_WIDTH * l;
}
/* Allocate the raster buffer for GIF_FONT_HEIGHT scan lines (one text line). */
for (i = 0; i < GIF_FONT_HEIGHT; i++)
if ((RasterBuffer[i] = (GifRowType) malloc(sizeof(GifPixelType) *
ImageWidth)) == NULL)
GIF_EXIT("Failed to allocate memory required, aborted.");
/* Open stdout for the output file: */
if ((GifFile = EGifOpenFileHandle(1, &ErrorCode)) == NULL) {
PrintGifError(ErrorCode);
exit(EXIT_FAILURE);
}
/* Dump out screen description with given size and generated color map: */
for (LogNumLevels = 1, NumLevels = 2;
NumLevels < ForeGroundIndex;
LogNumLevels++, NumLevels <<= 1);
if (NumLevels < (1 << ColorMapSize)) {
NumLevels = (1 << ColorMapSize);
LogNumLevels = ColorMapSize;
}
if ((ColorMap = GifMakeMapObject(NumLevels, NULL)) == NULL)
GIF_EXIT("Failed to allocate memory required, aborted.");
for (i = 0; i < NumLevels; i++)
ColorMap->Colors[i].Red = ColorMap->Colors[i].Green = ColorMap->Colors[i].Blue = 0;
ColorMap->Colors[ForeGroundIndex].Red = RedColor;
ColorMap->Colors[ForeGroundIndex].Green = GreenColor;
ColorMap->Colors[ForeGroundIndex].Blue = BlueColor;
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);
for (i = l = 0; i < NumOfLines; i++) {
GenRasterTextLine(RasterBuffer, TextLines[i], ImageWidth,
ForeGroundIndex);
for (j = 0; j < GIF_FONT_HEIGHT; j++) {
if (EGifPutLine(GifFile, RasterBuffer[j], ImageWidth) == GIF_ERROR)
QuitGifError(GifFile);
GifQprintf("\b\b\b\b%-4d", l++);
}
}
if (EGifCloseFile(GifFile) == GIF_ERROR)
QuitGifError(GifFile);
return 0;
}
