bool CxImageSKA::Encode(CxFile * hFile)
{
if (EncodeSafeCheck(hFile)) return false;
if(head.biBitCount > 8) {
strcpy(info.szLastError,"SKA Images must be 8 bit or less");
return false;
}
SKAHEADER ska_header;
ska_header.Width = (unsigned short)GetWidth();
ska_header.Height = (unsigned short)GetHeight();
ska_header.BppExp = 3;
ska_header.dwUnknown = 0x01000000;
ska_header.Width = ntohs(ska_header.Width);
ska_header.Height = ntohs(ska_header.Height);
ska_header.dwUnknown = ntohl(ska_header.dwUnknown);
hFile->Write(&ska_header,sizeof(SKAHEADER),1);
ska_header.Width = ntohs(ska_header.Width);
ska_header.Height = ntohs(ska_header.Height);
ska_header.dwUnknown = ntohl(ska_header.dwUnknown);
if (head.biBitCount<8) IncreaseBpp(8);
rgb_color pal[256];
for(int idx=0; idx<256; idx++){
GetPaletteColor(idx,&(pal[idx].r),&(pal[idx].g),&(pal[idx].b));
}
hFile->Write(pal,256*sizeof(rgb_color),1);
BYTE* src = GetBits(ska_header.Height-1);
for(int y=0;y<ska_header.Height;y++){
hFile->Write(src,ska_header.Width,1);
src -= GetEffWidth();
}
return true;
}
bool CxImageGIF::Encode(CxFile * fp)
{
if (EncodeSafeCheck(fp)) return false;
GifFileType *GifFile = NULL;
ColorMapObject *OutputColorMap = NULL;
int i, ColorMapSize;
if(head.biBitCount != 8)
{
if(head.biBitCount < 8)IncreaseBpp(8);
else DecreaseBpp(8, true);
}
try
{
GifFile = EGifOpen(fp, writeCxFile);
ColorMapSize = head.biClrUsed;
OutputColorMap = MakeMapObject(ColorMapSize, NULL);
RGBQUAD* pPal = GetPalette();
for(i=0; i<ColorMapSize; ++i)
{
OutputColorMap->Colors[i].Red = pPal[i].rgbRed;
OutputColorMap->Colors[i].Green = pPal[i].rgbGreen;
OutputColorMap->Colors[i].Blue = pPal[i].rgbBlue;
}
EGifPutScreenDesc(GifFile, head.biWidth, head.biHeight, OutputColorMap->ColorCount, info.nBkgndIndex== -1 ? 0 : info.nBkgndIndex, OutputColorMap);
FreeMapObject(OutputColorMap);
OutputColorMap = NULL;
if(info.nBkgndIndex != -1)
{
unsigned char ExtStr[4] = { 1, 0, 0, info.nBkgndIndex };
EGifPutExtension(GifFile, GRAPHICS_EXT_FUNC_CODE, 4, ExtStr);
}
EGifPutImageDesc(GifFile, 0, 0, head.biWidth, head.biHeight, FALSE, NULL);
for (i = 0; i < head.biHeight; i++)
EGifPutLine(GifFile, GetBits(head.biHeight - i - 1), head.biWidth);
EGifCloseFile(GifFile);
GifFile = NULL;
} catch (int errid) {
strncpy(info.szLastError,GifGetErrorMessage(errid),255);
if(OutputColorMap)
{
FreeMapObject(OutputColorMap);
OutputColorMap = NULL;
}
if(GifFile)
{
EGifCloseFile(GifFile);
GifFile = NULL;
}
return false;
} catch (char *message) {
strncpy(info.szLastError,message,255);
if(OutputColorMap)
{
FreeMapObject(OutputColorMap);
OutputColorMap = NULL;
}
if(GifFile)
{
EGifCloseFile(GifFile);
GifFile = NULL;
}
return false;
}
return true;
}
