FGFS-4.1/OpenSceneGraph
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Added support for a photo archive.

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This commit is contained in:
Robert Osfield
2003-12-23 23:55:06 +00:00
parent 5cc98a420d
commit 0683c1b5a8
5 changed files with 479 additions and 11 deletions
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16
examples/osgphotoalbum/ImageReaderWriter.cpp
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@@ -70,6 +70,13 @@ std::string ImageReaderWriter::insertReference(const std::string& fileName, unsi
osg::Image* ImageReaderWriter::readImage_Archive(DataReference& dr, float& s,float& t)
{
for(PhotoArchiveList::iterator itr=_photoArchiveList.begin();
itr!=_photoArchiveList.end();
++itr)
{
osg::Image* image = (*itr)->readImage(dr._fileName,dr._resolutionX,dr._resolutionY,s,t);
if (image) return image;
}
return 0;
}
@@ -100,8 +107,6 @@ osg::Image* ImageReaderWriter::readImage_DynamicSampling(DataReference& dr, floa
osgDB::ReaderWriter::ReadResult ImageReaderWriter::readNode(const std::string& fileName, const Options*)
{
std::cout<<"Request to read paged image "<<fileName<<std::endl;
DataReferenceMap::iterator itr = _dataReferences.find(fileName);
if (itr==_dataReferences.end()) return ReaderWriter::ReadResult::FILE_NOT_HANDLED;
@@ -110,9 +115,12 @@ osgDB::ReaderWriter::ReadResult ImageReaderWriter::readNode(const std::string& f
osg::Image* image = 0;
float s=1.0f,t=1.0f;
if (_photoArchive.valid())
// try to load photo from any loaded PhotoArchives
if (!_photoArchiveList.empty())
image = readImage_Archive(dr,s,t);
else
// not loaded yet, so try to load it directly.
if (!image)
image = readImage_DynamicSampling(dr,s,t);