osg::PNMImageFileType Class Reference
[Image]

PNM File Handler. Used to read/write PNM files. See Image for a detailed description. More...

#include <OSGPNMImageFileType.h>

Inheritance diagram for osg::PNMImageFileType:

osg::ImageFileType

List of all members.

Safe Store/Restore



UInt64 store (const ImagePtr &image, UChar8 *buffer, Int32 memSize=-1)
virtual UInt64 maxBufferSize (const ImagePtr &image)
static UInt64 restore (ImagePtr &image, const UChar8 *buffer, Int32 memSize=-1)
static UInt64 store (const ImagePtr &image, const char *mimeType, UChar8 *buffer, Int32 memSize=-1)

Public Types

Flags


enum  { OSG_READ_SUPPORTED = 1, OSG_WRITE_SUPPORTED = 2 }

Public Member Functions

Destructor


virtual ~PNMImageFileType (void)
Read/Write


virtual bool read (ImagePtr &image, std::istream &is, const std::string &mimetype)
virtual bool write (const ImagePtr &image, std::ostream &os, const std::string &mimetype)
virtual std::string determineMimetypeFromStream (std::istream &is)
Set


void setOptions (const Char8 *options)
Get Methods


const Char8getMimeType (void) const
const std::list< IDString > & getSuffixList (void) const
virtual UInt32 getFlags (void) const
const Char8getOptions (void)
Read/Write


virtual bool read (ImagePtr &image, const Char8 *fileName)
virtual bool write (const ImagePtr &image, const Char8 *fileName)
virtual bool validateHeader (const Char8 *fileName, bool &implemented)
Raw Store/Restore


virtual UInt64 restoreData (ImagePtr &image, const UChar8 *buffer, Int32 memSize=-1)
virtual UInt64 storeData (const ImagePtr &image, UChar8 *buffer, Int32 memSize=-1)
dump


void dump (void)

Static Public Member Functions

Get Methods


static PNMImageFileTypethe (void)

Protected Member Functions

Default Constructor


 PNMImageFileType (const Char8 *mimeType, const Char8 *suffixArray[], UInt16 suffixByteCount, UInt32 flags)

Protected Attributes

MTD Header


std::string _options

Private Member Functions

Copy Constructor


 PNMImageFileType (const PNMImageFileType &obj)
Copy Operator


const PNMImageFileTypeoperator= (const PNMImageFileType &obj)

Static Private Attributes

static PNMImageFileType _the


Detailed Description

Image File Type to read/write and store/restore Image objects as PNM data. Should work with binary and ascii pnm/pbm/pgm/ppm data.

All the type specific code is included in the class. Does not depend on external libs.

Definition at line 56 of file OSGPNMImageFileType.h.


Member Enumeration Documentation

anonymous enum [inherited]

Enumerator:
OSG_READ_SUPPORTED 
OSG_WRITE_SUPPORTED 

Definition at line 66 of file OSGImageFileType.h.

00067     {
00068         OSG_READ_SUPPORTED = 1,
00069         OSG_WRITE_SUPPORTED = 2
00070     };


Constructor & Destructor Documentation

PNMImageFileType::~PNMImageFileType ( void   )  [virtual]

Destructor

Definition at line 320 of file OSGPNMImageFileType.cpp.

00320 {}

PNMImageFileType::PNMImageFileType ( const Char8 mimeType,
const Char8 suffixArray[],
UInt16  suffixByteCount,
UInt32  flags 
) [protected]

Constructor used for the singleton object

Definition at line 309 of file OSGPNMImageFileType.cpp.

00312                                                  :
00313     ImageFileType(mimeType, suffixArray, suffixByteCount, flags)
00314 {}

osg::PNMImageFileType::PNMImageFileType ( const PNMImageFileType obj  )  [private]


Member Function Documentation

PNMImageFileType & PNMImageFileType::the ( void   )  [static]

Class method to get the singleton Object

Definition at line 103 of file OSGPNMImageFileType.cpp.

References _the.

00104 {
00105   return _the;
00106 }

bool PNMImageFileType::read ( ImagePtr image,
std::istream &  in,
const std::string &  mimetype 
) [virtual]

Tries to fill the image object with the data read from the given input stream. Returns true on success.

Reimplemented from osg::ImageFileType.

Definition at line 117 of file OSGPNMImageFileType.cpp.

References FWARNING, INT_MAX, osg::Image::OSG_L_PF, osg::Image::OSG_LA_PF, osg::Image::OSG_RGB_PF, osg::Image::OSG_RGBA_PF, SINFO, and SWARNING.

00118 {
00119     bool           isBinary = true;
00120     Int16          type = 0, width, height, lineSize, maxValue=0, value, x, y;
00121     UInt32         i, n;
00122     UChar8        *imageData = 0;
00123     UInt8          id, commentKey = '#';
00124 
00125     in >> id >> type;
00126     in.ignore(INT_MAX, '\n');
00127     while(in.peek() == commentKey)
00128         in.ignore(INT_MAX, '\n');
00129     in >> width >> height;
00130     isBinary = ((type > 3) && (type < 7)) ? true : false;
00131 
00132     switch(type)
00133     {
00134     case 1:
00135     case 4:
00136         maxValue = 1;
00137         image->set(Image::OSG_L_PF, width, height);
00138         break;
00139     case 2:
00140     case 5:
00141         maxValue = 0;
00142         image->set(Image::OSG_L_PF, width, height);
00143         break;
00144     case 3:
00145     case 6:
00146         maxValue = 0;
00147         image->set(Image::OSG_RGB_PF, width, height);
00148         break;
00149     case 7: // LA extention 
00150         FWARNING (("Read PNM type %d: LA-ascii extention\n",type ));
00151         maxValue = 0;
00152         image->set(Image::OSG_LA_PF, width, height);
00153         break;
00154     case 8: // RGBA extention
00155         FWARNING (("Read PNM type %d: RGBA-ascii extention\n",type ));
00156         maxValue = 0;
00157         image->set(Image::OSG_RGBA_PF, width, height);
00158         break;
00159     default:
00160         SWARNING << "unknown image format type " << type << std::endl;
00161         break;
00162     }
00163 
00164     if(!maxValue)
00165     {
00166         in >> maxValue;
00167         if(maxValue != 255)
00168         {
00169             SWARNING <<
00170                 "unknown max value " <<
00171                 maxValue <<
00172                 ", can't read the image" <<
00173                 std::endl;
00174             maxValue = 0;
00175         }
00176     }
00177 
00178     // eat the endline
00179     in.ignore(INT_MAX, '\n');
00180 
00181     if(maxValue && (imageData = image->getData()))
00182     {
00183         SINFO <<
00184             "Read pnm file of type " <<
00185             type <<
00186             ", " <<
00187             width <<
00188             "x" <<
00189             height <<
00190             std::endl;
00191 
00192         lineSize = width * image->getBpp();
00193         if(isBinary)
00194         {   // image is binary
00195             for(y = height - 1; y >= 0; y--)
00196             {
00197                 in.read((Char8 *) &(imageData[y * lineSize]), lineSize);
00198             }
00199         }
00200         else
00201         {   // image is ascii
00202             for(y = height - 1; y >= 0; y--)
00203             {
00204                 for(x = 0; x < lineSize; x++)
00205                 {
00206                     in >> value;
00207                     imageData[y * lineSize + x] = UChar8(value);
00208                 }
00209             }
00210         }
00211 
00212         if(maxValue == 1)
00213         {
00214             n = image->getSize();
00215             for(i = 0; i < n; i++)
00216                 imageData[0] *= 255;
00217         }
00218     }
00219 
00220     return true;
00221 }

bool PNMImageFileType::write ( const ImagePtr image,
std::ostream &  out,
const std::string &  mimetype 
) [virtual]

Tries to write the image object to the given output stream. Returns true on success.

Reimplemented from osg::ImageFileType.

Definition at line 228 of file OSGPNMImageFileType.cpp.

References p.

00229 {
00230     Int16          p, y, x, lineSize;
00231     UInt16         bpp = image->getBpp();
00232     UInt8         *data = 0;
00233 
00234     switch(bpp)
00235     {
00236     case 1:
00237     case 2:
00238         out << "P5" << std::endl;
00239         break;
00240     case 3:
00241     case 4:
00242         out << "P6" << std::endl;
00243         break;
00244     }
00245 
00246     out << "# PNMImageFileType write" << std::endl;
00247     out << image->getWidth() << " " << image->getHeight() << std::endl;
00248     out << "255" << std::endl;
00249 
00250     if(bpp & 1)
00251     {
00252         // with alpha
00253         lineSize = image->getBpp() * image->getWidth();
00254         for(y = image->getHeight() - 1; y >= 0; y--)
00255         {
00256             out.write((char *) (image->getData() + (lineSize * y)), 
00257                       lineSize);
00258         }
00259     }
00260     else
00261     {
00262         // skip alpha
00263         lineSize = image->getBpp() * image->getWidth();
00264         for(y = image->getHeight() - 1; y >= 0; y--)
00265         {
00266             data = (UInt8 *) (image->getData() + (lineSize * y));
00267             for(x = 0; x < image->getWidth(); x++)
00268             {
00269                 for(p = bpp - 1; p--;)
00270                     out << *data++;
00271                 data++;
00272             }
00273         }
00274     }
00275 
00276     return data ? true : false;
00277 }

std::string PNMImageFileType::determineMimetypeFromStream ( std::istream &  is  )  [virtual]

Tries to determine the mime type of the data provided by an input stream by searching for magic bytes. Returns the mime type or an empty string when the function could not determine the mime type.

Reimplemented from osg::ImageFileType.

Definition at line 285 of file OSGPNMImageFileType.cpp.

References osg::ImageFileType::getMimeType().

00286 {
00287     char filecode[2];
00288     is.read(filecode, 2);
00289     is.seekg(-2, std::ios::cur);
00290     if (strncmp(filecode, "P1", 2) == 0)
00291         return std::string(getMimeType());
00292     if (strncmp(filecode, "P2", 2) == 0)
00293         return std::string(getMimeType());
00294     if (strncmp(filecode, "P3", 2) == 0)
00295         return std::string(getMimeType());
00296     if (strncmp(filecode, "P4", 2) == 0)
00297         return std::string(getMimeType());
00298     if (strncmp(filecode, "P5", 2) == 0)
00299         return std::string(getMimeType());
00300     if (strncmp(filecode, "P6", 2) == 0)
00301         return std::string(getMimeType());
00302     return std::string();
00303 }

const PNMImageFileType& osg::PNMImageFileType::operator= ( const PNMImageFileType obj  )  [private]

void ImageFileType::setOptions ( const Char8 options  )  [inherited]

Definition at line 243 of file OSGImageFileType.cpp.

References osg::ImageFileType::_options.

Referenced by osg::ImageFileHandler::setOptions().

00244 {
00245     _options = options;
00246 }

const Char8 * ImageFileType::getMimeType ( void   )  const [inherited]

Get method for the mime type

Definition at line 107 of file OSGImageFileType.cpp.

References osg::ImageFileType::_mimeType, and osg::IDString::str().

Referenced by osg::ImageFileHandler::addImageFileType(), osg::TIFImageFileType::determineMimetypeFromStream(), osg::SGIImageFileType::determineMimetypeFromStream(), osg::PSDImageFileType::determineMimetypeFromStream(), determineMimetypeFromStream(), osg::PNGImageFileType::determineMimetypeFromStream(), osg::MNGImageFileType::determineMimetypeFromStream(), osg::JPGImageFileType::determineMimetypeFromStream(), osg::JP2ImageFileType::determineMimetypeFromStream(), osg::GIFImageFileType::determineMimetypeFromStream(), osg::DDSImageFileType::determineMimetypeFromStream(), osg::BMPImageFileType::determineMimetypeFromStream(), osg::ImageFileType::dump(), osg::TIFImageFileType::read(), osg::PNGImageFileType::read(), osg::JPGImageFileType::read(), osg::JP2ImageFileType::read(), osg::ImageFileType::read(), osg::ImageFileHandler::read(), osg::EXRImageFileType::read(), osg::PNGImageFileType::restoreData(), osg::JPGImageFileType::restoreData(), osg::ImageFileType::restoreData(), osg::ImageFileHandler::store(), osg::PNGImageFileType::storeData(), osg::JPGImageFileType::storeData(), osg::ImageFileType::storeData(), osg::TIFImageFileType::write(), osg::PNGImageFileType::write(), osg::JPGImageFileType::write(), osg::ImageFileType::write(), osg::ImageFileHandler::write(), and osg::EXRImageFileType::write().

00108 {
00109     return _mimeType.str();
00110 }

const std::list< IDString > & ImageFileType::getSuffixList ( void   )  const [inherited]

Get method for the suffix list container

Definition at line 134 of file OSGImageFileType.cpp.

References osg::ImageFileType::_suffixList.

Referenced by osg::ImageFileHandler::addImageFileType().

00135 {
00136     return _suffixList; 
00137 }

UInt32 ImageFileType::getFlags ( void   )  const [virtual, inherited]

Get method for the flags indicating read/write support. Most image types only support reading.

Definition at line 117 of file OSGImageFileType.cpp.

References osg::ImageFileType::_flags.

Referenced by osg::ImageFileHandler::getSuffixList().

00118 {
00119     return _flags;
00120 }

const Char8 * ImageFileType::getOptions ( void   )  [inherited]

Get method for the mime type

Definition at line 124 of file OSGImageFileType.cpp.

References osg::ImageFileType::_options.

Referenced by osg::ImageFileHandler::getOptions().

00125 {
00126     return _options.c_str();
00127 }

bool ImageFileType::read ( ImagePtr image,
const Char8 fileName 
) [virtual, inherited]

Reimplemented in osg::DATImageFileType, and osg::HDRImageFileType.

Definition at line 141 of file OSGImageFileType.cpp.

Referenced by osg::ImageFileHandler::read().

00142 {
00143     std::ifstream is(fileName, std::ios::binary);
00144     if (is.good() == false)
00145         return false;
00146     return read(image, is, std::string());
00147 }

bool ImageFileType::write ( const ImagePtr image,
const Char8 fileName 
) [virtual, inherited]

Reimplemented in osg::DATImageFileType, and osg::HDRImageFileType.

Definition at line 151 of file OSGImageFileType.cpp.

Referenced by osg::ImageFileHandler::write().

00152 {
00153     std::ofstream os(fileName, std::ios::binary);
00154     if (os.good() == false)
00155         return false;
00156     return write(image, os, std::string());
00157 }

bool ImageFileType::validateHeader ( const Char8 fileName,
bool &  implemented 
) [virtual, inherited]

Reimplemented in osg::GIFImageFileType, osg::JPGImageFileType, osg::PNGImageFileType, osg::SGIImageFileType, and osg::TIFImageFileType.

Definition at line 161 of file OSGImageFileType.cpp.

Referenced by osg::ImageFileHandler::getFileType().

00162 {
00163     implemented = false;
00164     return true;
00165 }

UInt64 ImageFileType::restore ( ImagePtr image,
const UChar8 buffer,
Int32  memSize = -1 
) [static, inherited]

Tries to restore the Imagedata from the given memblock. The buffer must include a ImageFileType::Head data block.

Definition at line 283 of file OSGImageFileType.cpp.

References osg::ImageFileType::Head::dataType, osg::ImageFileType::Head::depth, osg::ImageFileHandler::determineMimetypeFromSuffix(), FDEBUG, osg::ImageFileType::Head::frameCount, osg::ImageFileType::Head::frameDelay, FWARNING, osg::ImageFileType::Head::height, osg::ImageFileType::Head::mipmapCount, osg::ImageFileType::Head::netToHost(), osg::NullFC, osg::Image::OSG_UINT8_IMAGEDATA, osg::ImageFileType::Head::pixelFormat, osg::ImageFileType::Head::sideCount, osg::ImageFileType::Head::suffix, osg::ImageFileHandler::the(), and osg::ImageFileType::Head::width.

Referenced by osg::ClusterViewBuffer::recv(), osg::ImageFileHandler::restore(), and osg::SimpleSceneManager::useOpenSGLogo().

00285 {
00286     unsigned long   imageSize, headSize = sizeof(Head);
00287     unsigned long   size = 0, attachmentSize;
00288     Head            head;
00289     const UChar8    *data = buffer ? (buffer + headSize) : 0;
00290     ImageFileType   *type;
00291     std::string     mimeType;
00292     Image::Type     dataType;
00293 
00294     if ((image != osg::NullFC) && buffer && (memSize >= headSize)) {
00295 
00296         // Copy header. Otherwise netToHost would change the original
00297         // data structur.
00298         memcpy(&head,buffer,sizeof(Head));
00299         head.netToHost();
00300         mimeType = ImageFileHandler::the().determineMimetypeFromSuffix(head.suffix);
00301         
00302         if((type = ImageFileHandler::the().getFileType(mimeType.c_str(), 0)))
00303         {
00304             if (head.dataType)
00305               dataType = Image::Type(head.dataType);
00306             else
00307               dataType = Image::OSG_UINT8_IMAGEDATA;
00308 
00309             image->set(Image::PixelFormat(head.pixelFormat), head.width,
00310                        head.height, head.depth, head.mipmapCount,
00311                        head.frameCount, float(head.frameDelay) / 1000.0, 0,
00312                        dataType,true,head.sideCount );
00313             imageSize = static_cast<unsigned long>(
00314                 type->restoreData(image, data, memSize - headSize));
00315             attachmentSize = 0; // head->attachmentSize;
00316 
00317             /*
00318             if ((attachmentSize = head->attachmentSize))
00319             {
00320                 attData = (char*)(buffer + headSize + imageSize);
00321                 attKey = attData;
00322                 attValue = 0;
00323                 for (i = 0; i < (attachmentSize-1); i++) {
00324                     if (attData[i] == 0) 
00325                         if (attKey) {
00326                             attValue = &(attData[i+1]);
00327                             image->setAttachmentField (attKey,attValue);
00328                             attKey = attValue = 0;
00329                         }
00330                         else
00331                             attKey = &(attData[i+1]);
00332                 }
00333                 if (attKey || attValue) {
00334                     FFATAL (("Attachment restore error\n"));
00335                 }
00336             }
00337             */
00338 
00339             size = headSize + imageSize + attachmentSize;
00340       
00341             FDEBUG (( "Restore image data: %lu (%lu/%lu/%lu)\n",
00342                       size, headSize, imageSize, attachmentSize ));
00343 
00344         }
00345         else
00346         {
00347             imageSize = 0;
00348             FWARNING(("Can not restore image data, invalid mimeType: %s\n",
00349                       mimeType.empty() == false ? mimeType.c_str() : "Unknown"));
00350         }
00351 
00352       
00353     }
00354 
00355     return size;
00356 }

UInt64 ImageFileType::store ( const ImagePtr image,
const char *  mimeType,
UChar8 buffer,
Int32  memSize = -1 
) [static, inherited]

Tries to store the raster data to the given mem block. Will include a ImageFileType::Head description and the data encoded as 'mimeType'

Definition at line 364 of file OSGImageFileType.cpp.

References osg::ImageFileHandler::getFileType(), osg::ImageFileType::store(), and osg::ImageFileHandler::the().

Referenced by osg::ClusterViewBuffer::send(), osg::ImageFileType::store(), and osg::ImageFileHandler::store().

00366 {
00367   ImageFileType   *type = ImageFileHandler::the().getFileType(mimeType);
00368   
00369   return type ? type->store(image, buffer, memSize) : 0;
00370 }

UInt64 ImageFileType::store ( const ImagePtr image,
UChar8 buffer,
Int32  memSize = -1 
) [inherited]

Tries to store the raster data to the given mem block. Will include a ImageFileType::Head description for the derived concreate mimeType.

Definition at line 378 of file OSGImageFileType.cpp.

References osg::ImageFileType::_suffixList, osg::ImageFileType::Head::attachmentSize, osg::ImageFileType::Head::dataType, osg::ImageFileType::Head::depth, FDEBUG, FFATAL, osg::ImageFileType::Head::frameCount, osg::ImageFileType::Head::frameDelay, osg::ImageFileType::Head::height, osg::ImageFileType::Head::hostToNet(), osg::ImageFileType::Head::mipmapCount, osg::ImageFileType::Head::pixelFormat, osg::ImageFileType::Head::sideCount, osg::ImageFileType::storeData(), osg::ImageFileType::Head::suffix, and osg::ImageFileType::Head::width.

00380 {
00381     Head            *head;
00382     unsigned long   dataSize = 0, headSize = sizeof(Head);
00383     unsigned long   attachmentSize;
00384     UChar8          *dest;
00385     const UChar8    *src = image->getData();
00386     std::map<std::string, std::string>::const_iterator aI;
00387     std::string     value;
00388 
00389     attachmentSize = 0;
00390 
00391     // get attachment size
00392     /*
00393     ImageGenericAttPtr att=ImageGenericAttPtr::dcast(
00394         const_cast<Image*>(image.getCPtr())->findAttachment(
00395             ImageGenericAtt::getClassType().getGroupId()));
00396     if(att != NullFC)
00397     {
00398         for(i = 0; i < (att->getType().getNumFieldDescs()-1); ++i)
00399         {
00400             FieldDescription *fieldDesc=att->getType().getFieldDescription(i);
00401             Field *field=att->getField(i);
00402             if (fieldDesc && field) 
00403             {
00404                 field->getValueByStr(value);
00405                 attachmentSize += strlen( fieldDesc->getName().str() ) + 1;
00406                 attachmentSize += value.length() + 1;
00407               
00408                 std::cout << fieldDesc->getName().str() << std::endl; 
00409                 std::cout << value << std::endl; 
00410             }
00411             else 
00412             {
00413                 FFATAL (("Invalid Attachment in ImageFileType::store()\n"));
00414             }
00415         }
00416     }
00417     */
00418 
00419     if (buffer) 
00420     {
00421         head = (Head *)buffer;
00422 
00423         head->pixelFormat    = image->getPixelFormat();
00424         head->width          = image->getWidth();
00425         head->height         = image->getHeight();
00426         head->depth          = image->getDepth();
00427         head->mipmapCount    = image->getMipMapCount();
00428         head->frameCount     = image->getFrameCount();
00429         head->frameDelay     = short(image->getFrameDelay() * 1000.0);
00430         head->sideCount      = image->getSideCount();
00431         head->dataType       = image->getDataType();
00432         head->attachmentSize = static_cast<unsigned short>(attachmentSize);
00433         head->hostToNet();
00434       
00435         strcpy(head->suffix, _suffixList.front().str());
00436       
00437         dest = (UChar8 *) (buffer + headSize);
00438 
00439         if (src) 
00440             dataSize = static_cast<unsigned long>(
00441                 storeData(image, dest, memSize - headSize));
00442 
00443         dest = (UChar8 *) (buffer + headSize + dataSize);
00444 
00445         /*
00446         if(att != NullFC)
00447         {
00448             for(i = 0; i < (att->getType().getNumFieldDescs()-1); ++i)
00449             {
00450                 FieldDescription *fieldDesc=att->getType().getFieldDescription(i);
00451                 Field *field=att->getField(i);
00452                 if (field && fieldDesc) 
00453                 {
00454                     field->getValueByStr(value);
00455 
00456                     l = strlen( fieldDesc->getName().str() );
00457                     for (i = 0; i < l; i++)
00458                       *dest++ = fieldDesc->getName().str()[i];
00459                     *dest++ = 0;
00460                     l = value.length();
00461                     for (i = 0; i < l; i++)
00462                       *dest++ = value[i];
00463                     *dest++ = 0;
00464                 }
00465                 else
00466                 {
00467                     FFATAL (("Invalid Attachment in ImageFileType::store()\n"));
00468                 }
00469             }
00470         }
00471         */
00472 
00473         FDEBUG (( "Store image data: %lu (%lu/%lu/%lu)\n",
00474                   headSize + dataSize + attachmentSize, headSize, dataSize, 
00475                   attachmentSize ));
00476     }
00477     else {
00478         FFATAL (("Invalid buffer in ImageFileType::store()\n"));
00479     }
00480   
00481     return (headSize + dataSize + attachmentSize);
00482 
00483 }

UInt64 ImageFileType::maxBufferSize ( const ImagePtr image  )  [virtual, inherited]

Returns the max buffer size needed to store the Image (Head + mimeType specific data block)

Definition at line 490 of file OSGImageFileType.cpp.

References FINFO.

Referenced by osg::ClusterViewBuffer::send(), and osg::ImageFileHandler::store().

00491 {
00492     std::string value;
00493     unsigned long size, attachmentSize;
00494     unsigned long imageSize = image->getSize(), headSize = sizeof(Head);
00495 
00496     std::map<std::string, std::string>::const_iterator aI;
00497 
00498     attachmentSize = 0;
00499 
00500     // get attachment size
00501         /*
00502     ImageGenericAttPtr att=ImageGenericAttPtr::dcast(
00503         const_cast<Image*>(image.getCPtr())->findAttachment(
00504             ImageGenericAtt::getClassType().getGroupId()));
00505     if(att != NullFC)
00506     {
00507         for(i = 0; i < (att->getType().getNumFieldDescs()-1); ++i)
00508         {
00509             FieldDescription *fieldDesc=att->getType().getFieldDescription(i);
00510             Field *field=att->getField(i);
00511             if (field && fieldDesc) 
00512             {
00513                 field->getValueByStr(value);
00514                 attachmentSize += strlen( fieldDesc->getName().str() ) + 1;
00515                 attachmentSize += value.length() + 1;
00516             }
00517             else 
00518             {
00519                 FFATAL (("Invalid Attachment in ImageFileType::maxBufferSize()\n"));
00520             }
00521         }
00522     }
00523         */
00524 
00525     size = headSize + imageSize + attachmentSize;
00526   
00527     FINFO (( "ImageFileType::maxBufferSize(): %lu (%lu/%lu/%lu)\n", 
00528              size, headSize, imageSize, attachmentSize ));
00529   
00530     return size;
00531 }

UInt64 ImageFileType::restoreData ( ImagePtr image,
const UChar8 buffer,
Int32  memSize = -1 
) [virtual, inherited]

Abstract restore method. Should be overwriten by a concrete derived class. Tries to restore the image data from the given memblock.

Reimplemented in osg::DATImageFileType, osg::EXRImageFileType, osg::HDRImageFileType, osg::JPGImageFileType, osg::MTDImageFileType, and osg::PNGImageFileType.

Definition at line 253 of file OSGImageFileType.cpp.

References FWARNING, and osg::ImageFileType::getMimeType().

00256 {
00257   FWARNING(("ImageXFileType::restoreData() not impl. for mimeType %s\n",
00258             getMimeType()));
00259 
00260   return 0;
00261 }

UInt64 ImageFileType::storeData ( const ImagePtr image,
UChar8 buffer,
Int32  memSize = -1 
) [virtual, inherited]

Abstract restore method. Should be overwriten by a concrete derived class. Tries to store the given image data to the given memblock

Reimplemented in osg::DATImageFileType, osg::EXRImageFileType, osg::HDRImageFileType, osg::JPGImageFileType, osg::MTDImageFileType, and osg::PNGImageFileType.

Definition at line 268 of file OSGImageFileType.cpp.

References FWARNING, and osg::ImageFileType::getMimeType().

Referenced by osg::ImageFileType::store().

00271 {
00272   FWARNING(("ImageXFileType::storeData() not impl. for mimeType %s\n",
00273             getMimeType()));
00274   
00275   return 0;
00276 }

void ImageFileType::dump ( void   )  [inherited]

The dump method just writes some object debugging info to the LOG stream

Definition at line 537 of file OSGImageFileType.cpp.

References osg::ImageFileType::_suffixList, osg::ImageFileType::getMimeType(), osg::LOG_DEBUG, and SLOG.

00538 {
00539     std::list<IDString>::iterator    sI;
00540 
00541     SLOG << getMimeType();
00542 
00543     if(_suffixList.empty())
00544     {
00545         SLOG << ": Suffix: ";
00546         for(sI = _suffixList.begin(); sI != _suffixList.end(); sI++)
00547         {
00548             Log().stream(OSG::LOG_DEBUG) << sI->str() << " ";
00549         }
00550     }
00551 
00552     std::cerr << std::endl;
00553 }


Member Data Documentation

Definition at line 118 of file OSGPNMImageFileType.h.

Referenced by the().

std::string osg::ImageFileType::_options [protected, inherited]


The documentation for this class was generated from the following files:

Generated on Mon Mar 17 11:12:47 2008 for OpenSG by  doxygen 1.5.5