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);
}
void save_image (image* img, char* file, image_format fmt) {
if (fmt == imgIRMID) {
FILE* fp;
fp = fopen (file, "w");
fwrite (img, img->size, 1, fp);
fclose (fp);
} else if (fmt == imgGIF) {
GifFileType* GifFileOut = (GifFileType *)NULL;
GifFileOut = EGifOpenFileName (file, 0);
GifColorType* color_map = new GifColorType[0x100 * 3];
for (uint n = 0; n < 0x100 ; ++n) {
color_map[n].Red = n;
color_map[n].Green = n;
color_map[n].Blue = n;
}
ColorMapObject* map_object = MakeMapObject (0x100, color_map);
GifRowType pixels = (GifRowType) new GifPixelType[img->xy];
for (uint n = 0; n < img->xy; ++n)
pixels[n] = (GifPixelType)data(img)[n];
EGifPutScreenDesc (GifFileOut, img->dimx, img->dimy, 0x100, 0x100, map_object);
EGifPutImageDesc (GifFileOut, 0, 0, img->dimx, img->dimy, 0, map_object);
EGifPutLine (GifFileOut, pixels, img->xy);
EGifCloseFile (GifFileOut);
}
}
void init_gifs(char *fileName, int sizex, int sizey)
{
if(gifFileIn==NULL) {
gifFileIn = DGifOpenFileName("kaavyhdi.gif");
if(gifFileIn==NULL) {failExit;}
printf("%i,%i: %i\n", gifFileIn->SWidth, gifFileIn->SHeight, gifFileIn->SColorResolution);
if(DGifSlurp(gifFileIn) == GIF_ERROR) failExit;
printf("slurp done\n");
}
gifFileOut = EGifOpenFileName(fileName, FALSE);
if(gifFileOut==NULL) failExit;
printf("making output...\n");
if(EGifPutScreenDesc(gifFileOut, sizex, sizey, gifFileIn->SColorResolution,
gifFileIn->SBackGroundColor,
MakeMapObject(gifFileIn->SColorMap->ColorCount,
gifFileIn->SColorMap->Colors)) == GIF_ERROR) failExit;
if(EGifPutImageDesc(gifFileOut, 0, 0, sizex, sizey, FALSE, NULL) == GIF_ERROR) failExit;
}
int GifTranscoder::transcode(const char* pathIn, const char* pathOut) {
int error;
double t0;
GifFileType* gifIn;
GifFileType* gifOut;
// Automatically closes the GIF files when this method returns
GifFilesCloser closer;
gifIn = DGifOpenFileName(pathIn, &error);
if (gifIn) {
closer.setGifIn(gifIn);
LOGD("Opened input GIF: %s", pathIn);
} else {
LOGE("Could not open input GIF: %s, error = %d", pathIn, error);
return GIF_ERROR;
}
gifOut = EGifOpenFileName(pathOut, false, &error);
if (gifOut) {
closer.setGifOut(gifOut);
LOGD("Opened output GIF: %s", pathOut);
} else {
LOGE("Could not open output GIF: %s, error = %d", pathOut, error);
return GIF_ERROR;
}
t0 = now();
if (resizeBoxFilter(gifIn, gifOut)) {
LOGD("Resized GIF in %.2f ms", now() - t0);
} else {
LOGE("Could not resize GIF");
return GIF_ERROR;
}
return GIF_OK;
}
int main(int argc, char **argv) {
FILE *input_file;
float arg,size,rx,ry,rz;
float f,fmin=1e10,fmax=-1e10;
uint16_t i;
uint64_t count;
int xi,yi,zi,xo,yo,zo,nx,ny,nz,dx,dy,dz,x0,y0,z0,h;
int **image;
char format,type,comment[256];
GifFileType *GIFfile;
ColorMapObject *GIFcmap;
GifPixelType *GIFline;
//
// command line args
//
if (!((argc == 6) || (argc == 7) || (argc == 8) || (argc == 9) || (argc == 10) || (argc == 13) || (argc == 16) || (argc == 19))) {
printf("command line: vol_gif in.vol out.gif nx ny nz [format [type [arg [size [dx dy dz [x0 y0 z0 [rx ry rz]]]]]]]\n");
printf(" in.vol = input volume file\n");
printf(" out.gif = output GIF file\n");
printf(" nx,ny,nz = x,y,z input voxel number\n");
printf(" format = 'f' for float 32, 'i' for uint16_t (default 'f')\n");
printf(" type = 's' for section, 'h' for height (default 's')\n");
printf(" arg = gamma for 's', threshold for 'h' (default 1)\n");
printf(" size = mm per voxel (default 1)\n");
printf(" dx,dy,dz = x,y,z output voxel number (default all)\n");
printf(" x0,y0,z0 = x,y,z output voxel origin (default 0)\n");
printf(" to be implemented: rx,ry,rz = view rotation angles (degrees; default 0)\n");
exit(-1);
}
format = 'f';
type = 's';
arg = 1;
size = 1.0;
rx = ry = rz = 0;
sscanf(argv[3],"%d",&nx);
sscanf(argv[4],"%d",&ny);
sscanf(argv[5],"%d",&nz);
dx = nx; dy = ny; dz = nz;
x0 = y0 = z0 = 0;
if (argc >= 7) {
sscanf(argv[6],"%c",&format);
if (!((format == 'f') || (format == 'i'))) {
printf("vol_gif: oops -- format must be 'f' or 'i'\n");
exit(-1);
}
}
if (argc >= 8) {
sscanf(argv[7],"%c",&type);
if (!((type == 's') || (type == 'h'))) {
printf("vol_gif: oops -- type must be 's' or 'h'\n");
exit(-1);
}
}
if (argc >= 9) {
sscanf(argv[8],"%f",&arg);
}
if (argc >= 10) {
sscanf(argv[9],"%f",&size);
}
if (argc >= 13) {
sscanf(argv[10],"%d",&x0);
sscanf(argv[11],"%d",&y0);
sscanf(argv[12],"%d",&z0);
}
if (argc >= 16) {
sscanf(argv[13],"%d",&dx);
sscanf(argv[14],"%d",&dy);
sscanf(argv[15],"%d",&dz);
}
if (argc >= 19) {
sscanf(argv[16],"%f",&rx);
sscanf(argv[17],"%f",&ry);
sscanf(argv[18],"%f",&rz);
}
//
// check and find limits
//
input_file = fopen(argv[1],"rb");
if (input_file == NULL) {
printf("vol_gif: oops -- can not open %s\n",argv[1]);
exit(-1);
}
if (((x0 + dx) > nx) || ((y0 + dy) > ny) || ((z0 + dz) > nz)) {
printf("vol_gif: oops -- region too large\n");
exit(-1);
}
printf("read %s\n",argv[1]);
if (format == 'f') {
count = 0;
while (fread(&f,sizeof(f),1,input_file) != 0) {
if (f > fmax) fmax = f;
if (f < fmin) fmin = f;
count += 1;
}
}
else if (format == 'i') {
count = 0;
while (fread(&i,sizeof(i),1,input_file) != 0) {
if (i > fmax) fmax = i;
if (i < fmin) fmin = i;
count += 1;
}
}
printf(" %" PRIu64 " points, min %f, max %f\n",count,fmin,fmax);
printf(" nx ny nz: %d %d %d\n",nx,ny,nz);
rewind(input_file);
//
// set up color map
//
#if GIFLIB_MAJOR >= 5
GIFcmap = GifMakeMapObject(256, NULL);
#else
GIFcmap = MakeMapObject(256, NULL);
#endif
for (i = 0; i < 256; i++) {
GIFcmap->Colors[i].Red = i;
GIFcmap->Colors[i].Green = i;
GIFcmap->Colors[i].Blue = i;
}
//
// open GIF file
//
printf("write %s\n",argv[2]);
EGifPutScreenDesc(GIFfile,dx,dy,8,0,GIFcmap);
unsigned char loop_count[] = {1,0,0};
#if GIFLIB_MAJOR >= 5
GIFfile = EGifOpenFileName(argv[2], 0, NULL);
EGifPutExtension(GIFfile, APPLICATION_EXT_FUNC_CODE, 11, "NETSCAPE2.0");
EGifPutExtension(GIFfile, APPLICATION_EXT_FUNC_CODE, 3, loop_count);
#else
GIFfile = EGifOpenFileName(argv[2], 0);
EGifPutExtensionFirst(GIFfile, APPLICATION_EXT_FUNC_CODE, 11, "NETSCAPE2.0");
EGifPutExtensionLast(GIFfile, APPLICATION_EXT_FUNC_CODE, 3, loop_count);
#endif
unsigned char delay_count[5] = {
0, // no transparency
0, // delay time
0, // delay time
0 // transparent index not used
};
//
// allocate image
//
image = malloc(dy*sizeof(int *));
for (yo = 0; yo < dy; ++yo) {
image[yo] = malloc(dx*sizeof(int));
for (xo = 0; xo < dx; ++xo)
image[yo][xo] = 0;
}
GIFline = malloc(dx*sizeof(GifPixelType));
//
// scan file
//
xi = yi = zi = 0;
for (zo = 0; zo < dz; ++zo) {
printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b layer = %d",zo);
EGifPutExtension(GIFfile,GRAPHICS_EXT_FUNC_CODE,4,delay_count);
EGifPutImageDesc(GIFfile,0,0,dx,dy,0,NULL);
//
// read layer
//
for (yo = 0; yo < dy; ++yo) {
for (xo = 0; xo < dx; ++xo) {
if (format == 'f') {
read_voxel_f(input_file,&f,xo+x0,yo+y0,zo+z0,&xi,&yi,&zi,nx,ny,nz);
if (type == 'h') {
h = 255*zo/(nz-1.0);
if ((h > image[yo][xo]) && (f > arg))
image[yo][xo] = h;
GIFline[xo] = image[yo][xo]*(nz-1.0)/zo;
}
else if (type == 's') {
GIFline[xo] = 255*pow((f-fmin)/(fmax-fmin),arg);
}
}
else if (format == 'i') {
read_voxel_i(input_file,&i,xo+x0,yo+y0,zo+z0,&xi,&yi,&zi,nx,ny,nz);
if (type == 'h') {
h = 255*zo/(nz-1.0);
if ((h > image[yo][xo]) && (i > arg))
image[yo][xo] = h;
GIFline[xo] = image[yo][xo]*(nz-1.0)/zo;
}
else if (type == 's') {
GIFline[xo] = 255*pow((i-fmin)/(fmax-fmin),arg);
}
}
}
EGifPutLine(GIFfile,GIFline,dx);
}
}
printf("\n");
//
// put mm per pixel in comment
//
sprintf(comment,"mm per pixel: %f;",size);
EGifPutComment(GIFfile,comment);
//
// exit
//
fclose(input_file);
EGifCloseFile(GIFfile);
exit(0);
}
bool toGif(QImage& img, QString& path)
{
int errcode;
if(QFile(path).exists()) // Remove old file
QFile::remove(path);
GifFileType* t = EGifOpenFileName(path.toLocal8Bit().data(),true, &errcode);
if(!t){
EGifCloseFile(t, &errcode);
QTextStream(stdout) << "Can't open\n";
return false;
}
EGifSetGifVersion(t, true);
GifColorType* colorArr = new GifColorType[256];
ColorMapObject* cmo = GifMakeMapObject(256, colorArr);
bool unfinished = false;
QImage tarQImg(img.width(), img.height(), QImage::Format_Indexed8);
QVector<QRgb> table;
for(int y = 0; y < img.height(); y++){
for(int x = 0; x < img.width(); x++){
if(table.size() >= 256){
unfinished = true;
break;
}
QRgb pix;
if(!table.contains(pix = img.pixel(x,y))){
table.push_back(pix);
tarQImg.setColor(tarQImg.colorCount(), pix);
}
tarQImg.setPixel(x,y,table.indexOf(pix));
}
if(table.size() >= 256){
unfinished = true;
break;
}
}
if(unfinished){
EGifCloseFile(t, &errcode);
QTextStream(stdout) << "Unfinished\n";
return false;
}
for(int l = tarQImg.colorCount(); l < 256; l++){
tarQImg.setColor(l,0);
}
if(tarQImg.colorTable().size() != 256){
EGifCloseFile(t, &errcode);
QTextStream(stdout) << "A lot of colors\n";
return false;
}
QVector<QRgb> clTab = tarQImg.colorTable();
for(int i = 0; i < 255; i++){
QRgb rgb = clTab[i];
colorArr[i].Red = qRed(rgb);
colorArr[i].Green = qGreen(rgb);
colorArr[i].Blue = qBlue(rgb);
}
cmo->Colors = colorArr;
errcode = EGifPutScreenDesc(t, img.width(), img.height(), 256, 0, cmo);
if(errcode != GIF_OK){
EGifCloseFile(t, &errcode);
QTextStream(stdout) << "EGifPutScreenDesc error 1\n";
return false;
}
errcode = EGifPutImageDesc(t, 0, 0, img.width(), img.height(), false, 0);
if(errcode != GIF_OK){
EGifCloseFile(t, &errcode);
QTextStream(stdout) << "EGifPutImageDesc error 2\n";
return false;
}
//gen byte array
GifByteType* byteArr = tarQImg.bits();
for(int h = 0; h < tarQImg.height(); h++){
errcode = EGifPutLine(t, byteArr, tarQImg.width());
if(errcode != GIF_OK){
EGifCloseFile(t, &errcode);
QTextStream(stdout) << "EGifPutLine error 3\n";
return false;
}
byteArr += tarQImg.width();
byteArr += ((tarQImg.width() % 4)!=0 ? 4 - (tarQImg.width() % 4) : 0);
}
if(errcode != GIF_OK){
QTextStream(stdout) << "GIF error 4\n";
return false;
}
EGifCloseFile(t, &errcode);
return true;
}
bool Graphics::toGif(QImage &img, QString &path)
{
int errcode;
if(QFile(path).exists()) // Remove old file
QFile::remove(path);
GifFileType *t = EGifOpenFileName(path.toStdString().c_str(), true, &errcode);
if(!t)
{
EGifCloseFile(t, &errcode);
std::cout << "Can't open\n";
return false;
}
EGifSetGifVersion(t, true);
std::vector<GifColorType>colorArr;
colorArr.resize(256);
ColorMapObject *cmo = GifMakeMapObject(256, colorArr.data());
bool unfinished = false;
QImage tarQImg(img.width(), img.height(), QImage::Format_Indexed8);
QVector<QRgb> table;
for(int y = 0; y < img.height(); y++)
{
for(int x = 0; x < img.width(); x++)
{
if(table.size() >= 256)
{
unfinished = true;
break;
}
QRgb pix;
if(!table.contains(pix = img.pixel(x, y)))
{
table.push_back(pix);
tarQImg.setColor(tarQImg.colorCount(), pix);
}
tarQImg.setPixel(x, y, static_cast<uint>(table.indexOf(pix)));
}
if(table.size() >= 256)
{
unfinished = true;
break;
}
}
if(unfinished)
{
GifFreeMapObject(cmo);
EGifCloseFile(t, &errcode);
std::cout << "Unfinished\n";
return false;
}
for(int l = tarQImg.colorCount(); l < 256; l++)
tarQImg.setColor(l, 0);
if(tarQImg.colorTable().size() != 256)
{
GifFreeMapObject(cmo);
EGifCloseFile(t, &errcode);
std::cout << "A lot of colors\n";
return false;
}
std::vector<QRgb> clTab = tarQImg.colorTable().toStdVector();
for(size_t i = 0; i < 255; i++)
{
QRgb rgb = clTab[i];
colorArr[i].Red = static_cast<unsigned char>(qRed(rgb));
colorArr[i].Green = static_cast<unsigned char>(qGreen(rgb));
colorArr[i].Blue = static_cast<unsigned char>(qBlue(rgb));
}
cmo->Colors = colorArr.data();
errcode = EGifPutScreenDesc(t, img.width(), img.height(), 256, 0, cmo);
if(errcode != GIF_OK)
{
GifFreeMapObject(cmo);
EGifCloseFile(t, &errcode);
std::cout << "EGifPutScreenDesc error 1\n";
return false;
}
errcode = EGifPutImageDesc(t, 0, 0, img.width(), img.height(), false, 0);
if(errcode != GIF_OK)
{
GifFreeMapObject(cmo);
EGifCloseFile(t, &errcode);
std::cout << "EGifPutImageDesc error 2\n";
return false;
}
//gen byte array
GifByteType *byteArr = tarQImg.bits();
for(int h = 0; h < tarQImg.height(); h++)
{
errcode = EGifPutLine(t, byteArr, tarQImg.width());
if(errcode != GIF_OK)
{
GifFreeMapObject(cmo);
EGifCloseFile(t, &errcode);
std::cout << "EGifPutLine error 3\n";
return false;
}
byteArr += tarQImg.width();
byteArr += ((tarQImg.width() % 4) != 0 ? 4 - (tarQImg.width() % 4) : 0);
}
GifFreeMapObject(cmo);
EGifCloseFile(t, &errcode);
return true;
}
/******************************************************************************
* 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);
}
bool ParupaintPanvasInputOutput::exportGIF(ParupaintPanvas * panvas, const QString & filename, QString & errorStr)
{
Q_ASSERT(panvas);
if(filename.isEmpty())
return (errorStr = "Enter a filename to save to.").isEmpty();
#ifndef PARUPAINT_NOGIF
int error = 0;
GifFileType * gif = EGifOpenFileName(filename.toStdString().c_str(), false, &error);
foreach(const QImage & image, panvas->mergedImageFrames(true)){
error = 0;
bool alpha = false;
QImage toWrite = convertToIndexed8(image, &alpha);
QVector<QRgb> colorTable = toWrite.colorTable();
ColorMapObject cmap;
int numColors = 1 << BitSize(toWrite.colorCount());
numColors = 256;
cmap.ColorCount = numColors;
cmap.BitsPerPixel = 8; /// @todo based on numColors (or not? we did ask for Format_Indexed8, so the data is always 8-bit, right?)
GifColorType* colorValues = (GifColorType*)malloc(cmap.ColorCount * sizeof(GifColorType));
cmap.Colors = colorValues;
int c = 0;
for(; c < toWrite.colorCount(); ++c)
{
//qDebug("color %d has %02X%02X%02X", c, qRed(colorTable[c]), qGreen(colorTable[c]), qBlue(colorTable[c]));
colorValues[c].Red = qRed(colorTable[c]);
colorValues[c].Green = qGreen(colorTable[c]);
colorValues[c].Blue = qBlue(colorTable[c]);
}
// In case we had an actual number of colors that's not a power of 2,
// fill the rest with something (black perhaps).
for (; c < numColors; ++c)
{
colorValues[c].Red = 0;
colorValues[c].Green = 0;
colorValues[c].Blue = 0;
}
/// @todo how to specify which version, or decide based on features in use
// Because of this call, libgif is not re-entrant
EGifSetGifVersion(gif, true);
if ((error = EGifPutScreenDesc(gif, toWrite.width(), toWrite.height(), numColors, 0, &cmap)) == GIF_ERROR)
qCritical("EGifPutScreenDesc returned error %d", error);
int fps = (100.0/panvas->frameRate());
char flags = 1 << 3;
if(alpha) flags |= 1;
char graphics_ext[] = {
flags,
(char)(fps % 256), (char)(fps / 256),
(char)(alpha ? 0x00 : 0xff)
};
EGifPutExtension(gif, GRAPHICS_EXT_FUNC_CODE, 4, graphics_ext);
if ((error = EGifPutImageDesc(gif, 0, 0, toWrite.width(), toWrite.height(), 0, &cmap)) == GIF_ERROR)
qCritical("EGifPutImageDesc returned error %d", error);
int lc = toWrite.height();
int llen = toWrite.bytesPerLine();
for (int l = 0; l < lc; ++l) {
uchar* line = toWrite.scanLine(l);
if ((error = EGifPutLine(gif, (GifPixelType*)line, llen)) == GIF_ERROR) {
qCritical("EGifPutLine returned error %d", error);
}
}
if(true){
// loop forever
unsigned char loopblock[3] = {1, 0, 0};
EGifPutExtensionLeader(gif, APPLICATION_EXT_FUNC_CODE);
EGifPutExtensionBlock(gif, 11, "NETSCAPE2.0");
EGifPutExtensionBlock(gif, 3, loopblock);
EGifPutExtensionTrailer(gif);
}
}
EGifCloseFile(gif, &error);
return true;
#endif
return (errorStr = "GIF export not available.").isEmpty();
}
int
write_gif(const char *filename, int width, int height, char *rgb)
{
int i;
int colormap_size = 256;
GifByteType *red, *green, *blue, *buffer, *ptr;
GifFileType *outfile;
ColorMapObject *colormap;
red = malloc(width * height * sizeof(GifByteType));
green = malloc(width * height * sizeof(GifByteType));
blue = malloc(width * height * sizeof(GifByteType));
buffer = malloc(width * height * sizeof(GifByteType));
if (red == NULL || green == NULL || blue == NULL || buffer == NULL)
{
fprintf(stderr, "Can't allocate memory for GIF file.\n");
return(0);
}
colormap = MakeMapObject(colormap_size, NULL);
for (i = 0; i < width * height; i++)
{
red[i] = (GifByteType) rgb[3*i ];
green[i] = (GifByteType) rgb[3*i+1];
blue[i] = (GifByteType) rgb[3*i+2];
}
if (QuantizeBuffer(width, height, &colormap_size, red, green, blue,
buffer, colormap->Colors) == GIF_ERROR)
{
PrintGifError();
return(0);
}
free(red);
free(green);
free(blue);
outfile = EGifOpenFileName((char *) filename, FALSE);
if (outfile == NULL)
{
PrintGifError();
return(0);
}
if (EGifPutScreenDesc(outfile, width, height, colormap_size, 0, colormap)
== GIF_ERROR)
{
PrintGifError();
return(0);
}
if (EGifPutImageDesc(outfile, 0, 0, width, height, FALSE, NULL)
== GIF_ERROR)
{
PrintGifError();
return(0);
}
ptr = buffer;
for (i = 0; i < height; i++)
{
if (EGifPutLine(outfile, ptr, width) == GIF_ERROR)
{
PrintGifError();
return(0);
}
ptr += width;
}
EGifSpew(outfile);
if (EGifCloseFile(outfile) == GIF_ERROR)
PrintGifError();
free(buffer);
return(1);
}
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;
}
void
AnimatedGifEncoder::new_frame(unsigned char *data, int delay)
{
if (!gif_file) {
if (write_func != NULL) {
int nError;
gif_file = EGifOpen(write_user_data, write_func, &nError);
if (!gif_file) throw "EGifOpen in AnimatedGifEncoder::new_frame failed";
} else if (file_name.empty()) { // memory writer
int nError;
gif_file = EGifOpen(&gif, gif_writer, &nError);
if (!gif_file) throw "EGifOpen in AnimatedGifEncoder::new_frame failed";
} else {
int nError;
gif_file = EGifOpenFileName(file_name.c_str(), FALSE, &nError);
if (!gif_file) throw "EGifOpenFileName in AnimatedGifEncoder::new_frame failed";
}
output_color_map = GifMakeMapObject(color_map_size, ext_web_safe_palette);
if (!output_color_map) throw "MakeMapObject in AnimatedGifEncoder::new_frame failed";
gif_buf = (GifByteType *)malloc(sizeof(GifByteType)*width*height);
if (!gif_buf) throw "malloc in AnimatedGifEncoder::new_frame failed";
}
RGBator rgb(data, width, height, buf_type);
if (web_safe_quantize(width, height, rgb.red, rgb.green, rgb.blue, gif_buf) == GIF_ERROR)
throw "web_safe_quantize in AnimatedGifEncoder::new_frame failed";
/*
if (QuantizeBuffer(width, height, &color_map_size,
rgb.red, rgb.green, rgb.blue,
gif_buf, output_color_map->Colors) == GIF_ERROR)
{
throw "QuantizeBuffer in AnimatedGifEncoder::new_frame failed";
}
*/
if (!headers_set) {
if (EGifPutScreenDesc(gif_file, width, height,
color_map_size, 0, output_color_map) == GIF_ERROR)
{
throw "EGifPutScreenDesc in AnimatedGifEncoder::new_frame failed";
}
char netscape_extension[] = "NETSCAPE2.0";
EGifPutExtension(gif_file, APPLICATION_EXT_FUNC_CODE, 11, netscape_extension);
char animation_extension[] = { 1, 1, 0 }; // repeat one time
EGifPutExtension(gif_file, APPLICATION_EXT_FUNC_CODE, 3, animation_extension);
headers_set = true;
}
char frame_flags = 1 << 2;
char transp_color_idx = 0;
if (transparency_color.color_present) {
int i = find_color_index(output_color_map, color_map_size, transparency_color);
if (i>=0) {
frame_flags |= 1;
transp_color_idx = i;
}
}
char extension[] = {
frame_flags,
delay%256, delay/256,
transp_color_idx
};
EGifPutExtension(gif_file, GRAPHICS_EXT_FUNC_CODE, 4, extension);
if (EGifPutImageDesc(gif_file, 0, 0, width, height, FALSE, NULL) == GIF_ERROR) {
throw "EGifPutImageDesc in AnimatedGifEncoder::new_frame failed";
}
GifByteType *gif_bufp = gif_buf;
for (int i = 0; i < height; i++) {
if (EGifPutLine(gif_file, gif_bufp, width) == GIF_ERROR) {
throw "EGifPutLine in AnimatedGifEncoder::new_frame failed";
}
gif_bufp += width;
}
}
