/******************************************************************************
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;
}
/******************************************************************************
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;
}
