bool ImageFileHandlerBase::write(Image const *pImage,
Char8 const *fileName,
Char8 const *mimeType)
{
bool retCode = false;
ImageFileType *type;
const std::string *fNAttachment;
if(!fileName && (fNAttachment = pImage->findAttachmentField(_fileNameKey)))
{
fileName = fNAttachment->c_str();
}
if((type = getFileType(mimeType, fileName)))
{
SINFO << "try to write "
<< fileName
<< " as "
<< type->getMimeType()
<< std::endl;
retCode = type->write(pImage, fileName);
}
else
{
SWARNING << "can't write "
<< fileName
<< "; unknown image format" << std::endl;
}
return retCode;
}
/*!
Tries to store the raster data to the given mem block.
Will include a ImageFileType::Head description and the data encoded
as 'mimeType'
*/
UInt64 ImageFileType::store(const ImagePtr &image, const char *mimeType,
UChar8 *buffer, Int32 memSize)
{
ImageFileType *type = ImageFileHandler::the().getFileType(mimeType);
return type ? type->store(image, buffer, memSize) : 0;
}
bool ImageFileHandlerBase::write(Image const *pImage,
std::ostream &os,
std::string const &mimeType)
{
ImageFileType *type = getFileType(mimeType.c_str());
return type == 0 ? false : type->write(pImage, os, mimeType);
}
bool ImageFileHandlerBase::read( Image *pImage,
std::istream &is,
const std::string &mimeType)
{
ImageFileType *type = getFileType(mimeType.c_str());
return type == 0 ? false : type->read(pImage, is, mimeType);
}
PixelBufferPtr ImageFile::load(const IODevicePtr &file, const std::string &type, bool srgb)
{
SetupDisplay::start();
auto &types = *SetupDisplay::get_image_provider_factory_types();
if (types.find(type) == types.end()) throw Exception("Unknown image provider type " + type);
ImageFileType *factory = types[type];
return factory->load(file, srgb);
}
void ImageFile::save(PixelBufferPtr buffer, const IODevicePtr &file, const std::string &type)
{
SetupDisplay::start();
auto &types = *SetupDisplay::get_image_provider_factory_types();
if (types.find(type) == types.end()) throw Exception("Unknown image provider type " + type);
ImageFileType *factory = types[type];
factory->save(buffer, file);
}
UInt64 ImageFileHandlerBase::store(Image const *pImage,
Char8 const *mimeType,
UChar8 *buffer,
Int32 memSize )
{
ImageFileType *type;
type = mimeType ? getFileType(mimeType) : getDefaultType();
return type->store(pImage, buffer, memSize);
}
bool ImageFileHandlerBase::addImageFileType(ImageFileType &fileType)
{
bool retCode = false;
std::list<std::string >::const_iterator sI;
std::map <std::string,
ImageFileType *>::iterator smI;
std::string suffix;
for( sI = fileType.getSuffixList().begin();
sI != fileType.getSuffixList().end();
++sI)
{
suffix.assign(sI->c_str());
normalizeSuffix(suffix);
smI = _suffixTypeMap.find(suffix);
if(smI != _suffixTypeMap.end())
{
SWARNING << "Can't add an image file type with suffix "
<< suffix << " a second time" << std::endl;
}
else
{
_suffixTypeMap[suffix] = &fileType;
retCode = true;
}
}
std::string mimetype = fileType.getMimeType();
normalizeMimetype(mimetype);
TypeMap::iterator tIt = _mimeTypeMap.find(mimetype);
if(tIt != _mimeTypeMap.end())
{
SWARNING << "Can't add an image file type with mimetype "
<< mimetype << " a second time" << std::endl;
}
else
{
_mimeTypeMap[mimetype] = &fileType;
}
return retCode;
}
/*! Removes the option \a name from the ImageFileType that handles files
with the given \a suffix. If the option is not present \c false is
returned, \c true otherwise.
\param[in] suffix File extension to choose the image file type
this option applies to.
\param[in] name Name of the option.
\return Whether the option was successfully removed.
*/
bool
ImageFileHandlerBase::unsetOption(
const std::string &suffix,
const std::string &name )
{
bool retVal = false;
ImageFileType *type = getFileType(suffix.c_str());
if(type != NULL)
{
retVal = type->unsetOption(name);
}
return retVal;
}
PixelBufferPtr ImageFile::load(const std::string &filename, const std::string &type, bool srgb)
{
SetupDisplay::start();
auto &types = *SetupDisplay::get_image_provider_factory_types();
if (type != "")
{
if (types.find(type) == types.end()) throw Exception("Unknown image provider type " + type);
ImageFileType *factory = types[type];
return factory->load(filename, srgb);
}
// Determine file extension and use it to lookup type.
std::string ext = FilePath::extension(filename);
ext = Text::to_lower(ext);
if (types.find(ext) == types.end()) throw Exception(std::string("Unknown image provider type ") + ext);
ImageFileType *factory = types[ext];
return factory->load(filename, srgb);
}
ImageFileHandlerBase::ImageBlockAccessorPtr
ImageFileHandlerBase::open(const Char8 *fileName,
const Char8 *mimeType)
{
ImageBlockAccessorPtr returnValue;
std::string fullFilePath;
if(_pPathHandler != NULL)
{
fullFilePath = _pPathHandler->findFile(fileName);
}
else
{
fullFilePath = fileName;
}
if(fullFilePath.empty())
{
SWARNING << "couldn't find image file " << fileName << std::endl;
return returnValue;
}
ImageFileType *type = getFileType(mimeType, fullFilePath.c_str(), true);
if(type != NULL)
{
FDEBUG(("try to image read %s as %s\n",
fullFilePath.c_str(),
type->getMimeType()));
returnValue = type->open(fullFilePath.c_str());
}
else
{
SWARNING << "could not read " << fullFilePath
<< "; unknown image format" << std::endl;
}
return returnValue;
}
Int32 ImageFileHandlerBase::getSuffixList(std::list<const Char8 *> &suffixList,
UInt32 flags )
{
Int32 count = 0;
std::map<std::string,
ImageFileType *>::iterator sI;
suffixList.clear();
for(sI = _suffixTypeMap.begin(); sI != _suffixTypeMap.end(); ++sI)
{
ImageFileType *type = sI->second;
if(type->getFlags() & flags)
{
suffixList.push_back(sI->first.c_str());
count++;
}
}
return count;
}
UChar8 *ImageFileHandlerBase::store(Image const *pImage,
UInt64 &memSize,
Char8 const *mimeType)
{
ImageFileType *type = 0;
UChar8 *mem = 0;
type = mimeType ? getFileType(mimeType) : getDefaultType();
memSize = type->maxBufferSize(pImage);
if(memSize)
{
mem = new UChar8[size_t(memSize)];
memSize = type->store(pImage, mem, Int32(memSize));
}
else
{
FFATAL(("Can not store the image as %s\n", type->getMimeType()));
}
return mem;
}
/*!
Tries to restore the Imagedata from the given memblock. The buffer must
include a ImageFileType::Head data block.
*/
UInt64 ImageFileType::restore( ImagePtr &image,
const UChar8 *buffer, Int32 memSize)
{
unsigned long imageSize, headSize = sizeof(Head);
unsigned long size = 0, attachmentSize;
Head head;
const UChar8 *data = buffer ? (buffer + headSize) : 0;
ImageFileType *type;
std::string mimeType;
Image::Type dataType;
if ((image != osg::NullFC) && buffer && (memSize >= headSize)) {
// Copy header. Otherwise netToHost would change the original
// data structur.
memcpy(&head,buffer,sizeof(Head));
head.netToHost();
mimeType = ImageFileHandler::the().determineMimetypeFromSuffix(head.suffix);
if((type = ImageFileHandler::the().getFileType(mimeType.c_str(), 0)))
{
if (head.dataType)
dataType = Image::Type(head.dataType);
else
dataType = Image::OSG_UINT8_IMAGEDATA;
image->set(Image::PixelFormat(head.pixelFormat), head.width,
head.height, head.depth, head.mipmapCount,
head.frameCount, float(head.frameDelay) / 1000.0, 0,
dataType,true,head.sideCount );
imageSize = static_cast<unsigned long>(
type->restoreData(image, data, memSize - headSize));
attachmentSize = 0; // head->attachmentSize;
/*
if ((attachmentSize = head->attachmentSize))
{
attData = (char*)(buffer + headSize + imageSize);
attKey = attData;
attValue = 0;
for (i = 0; i < (attachmentSize-1); i++) {
if (attData[i] == 0)
if (attKey) {
attValue = &(attData[i+1]);
image->setAttachmentField (attKey,attValue);
attKey = attValue = 0;
}
else
attKey = &(attData[i+1]);
}
if (attKey || attValue) {
FFATAL (("Attachment restore error\n"));
}
}
*/
size = headSize + imageSize + attachmentSize;
FDEBUG (( "Restore image data: %lu (%lu/%lu/%lu)\n",
size, headSize, imageSize, attachmentSize ));
}
else
{
imageSize = 0;
FWARNING(("Can not restore image data, invalid mimeType: %s\n",
mimeType.empty() == false ? mimeType.c_str() : "Unknown"));
}
}
return size;
}
bool ImageFileHandlerBase::read( Image *pImage,
const Char8 *fileName,
const Char8 *mimeType)
{
bool retCode = false;
std::string fullFilePath;
if(_pPathHandler != NULL)
{
fullFilePath = _pPathHandler->findFile(fileName);
}
else
{
fullFilePath = fileName;
}
if(fullFilePath.empty())
{
SWARNING << "couldn't find image file " << fileName << std::endl;
return false;
}
ImageFileType *type = getFileType(mimeType, fullFilePath.c_str(), true);
if(type != NULL)
{
FDEBUG(("try to image read %s as %s\n",
fullFilePath.c_str(),
type->getMimeType()));
retCode = type->read(pImage, fullFilePath.c_str());
if(retCode)
{
FDEBUG(("image: %dx%d\n",
pImage->getWidth(),
pImage->getHeight()));
pImage->setAttachmentField(_fileNameKey, fileName);
pImage->setAttachmentField(_fullFilePathKey, fullFilePath);
FilePathAttachment::setFilePath(pImage, BoostPath(fullFilePath));
// converting the path to a absolute path.
std::string abspath;
if(fullFilePath[0] != '/' &&
fullFilePath[0] != '\\' &&
fullFilePath[1] != ':')
{
std::string base;
if(getPathHandler() != NULL)
base = getPathHandler()->getBaseFile();
if(base.size() < 2 ||
(base[0] != '/' && base[0] != '\\' && base[1] != ':'))
{
const Char8 *cdir = Directory::getCurrent();
abspath = cdir;
#ifdef WIN32
abspath += '\\';
#else
abspath += '/';
#endif
delete [] cdir;
}
abspath += base;
abspath += fullFilePath;
}
else
{
abspath = fullFilePath;
}
pImage->setName(abspath);
}
else
{
SWARNING << "could not read " << fullFilePath << std::endl;
}
}
else
{
SWARNING << "could not read " << fullFilePath
<< "; unknown image format" << std::endl;
}
return retCode;
}
ImageFileType *ImageFileHandlerBase::getFileType(const Char8 *mimeType,
const Char8 *fileName,
bool validateHeader)
{
std::string suffix;
ImageFileType *type = 0;
std::map<std::string,
ImageFileType *>::iterator sI;
const char separator = '.';
int i, l;
if(mimeType && *mimeType)
{
std::string mt = mimeType;
normalizeMimetype(mt);
if(mt.find('/') == std::string::npos)
mt.insert(0, "image/");
TypeMap::iterator tIt = _mimeTypeMap.find(mt);
if(tIt != _mimeTypeMap.end())
type = tIt->second;
if(!type)
{
FWARNING (("Invalid mimeType %s in getFileType()\n", mimeType));
}
}
if(!type && fileName && *fileName)
{
// check file suffix
if(!type)
{
l = strlen(fileName);
for(i = l - 1; i >= 0; i--)
{
if(fileName[i] == separator)
break;
}
if(i >= 0)
{
suffix.assign(&(fileName[i + 1]));
normalizeSuffix(suffix);
sI = _suffixTypeMap.find(suffix);
type = (sI == _suffixTypeMap.end()) ? 0 : sI->second;
}
}
}
if(validateHeader)
{
// now validate the header of the file
bool implemented = false;
if( fileName &&
*fileName &&
type != NULL &&
!type->validateHeader(fileName, implemented))
{
FWARNING (("Found wrong image header trying to "
"autodetect image type!\n"));
for(sI = _suffixTypeMap.begin(); sI != _suffixTypeMap.end(); ++sI)
{
type = sI->second;
if(type != NULL && type->validateHeader(fileName, implemented))
{
if(implemented)
{
FWARNING (("Autodetected '%s' image type!\n",
sI->first.c_str()));
return type;
}
}
}
FWARNING (("Couldn't autodetect image type!\n"));
return NULL;
}
}
return type;
}
