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Added osg::Image::set/getWriteHint() that allows images themselves to control how

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they are written to disk, either inline or as an external file.  Added support for
this in the .ive plugin.  Default of WriteHint is NO_PREFERNCE, in which case it's
up to the reader/writer to decide.
This commit is contained in:
Robert Osfield 2008-09-10 11:26:30 +00:00
parent c478ad08fc
commit 45ccf11161
9 changed files with 56 additions and 10 deletions
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11
include/osg/Image
View File

@ -79,6 +79,15 @@ class OSG_EXPORT Image : public Object
void setFileName(const std::string& fileName);
inline const std::string& getFileName() const { return _fileName; }
enum WriteHint {
NO_PREFERENCE,
STORE_INLINE,
EXTERNAL_FILE
};
void setWriteHint(WriteHint writeHint) { _writeHint = writeHint; }
WriteHint getWriteHint() const { return _writeHint; }
enum AllocationMode {
NO_DELETE,
USE_NEW_DELETE,
@ -307,6 +316,8 @@ class OSG_EXPORT Image : public Object
Image& operator = (const Image&) { return *this; }
std::string _fileName;
WriteHint _writeHint;
Origin _origin;

2
src/osg/Image.cpp
View File

@ -38,6 +38,7 @@ Image::Image()
setDataVariance(STATIC);
_fileName = "";
_writeHint = NO_PREFERENCE;
_origin = BOTTOM_LEFT;
_s = _t = _r = 0;
_internalTextureFormat = 0;
@ -54,6 +55,7 @@ Image::Image()
Image::Image(const Image& image,const CopyOp& copyop):
Object(image,copyop),
_fileName(image._fileName),
_writeHint(image._writeHint),
_origin(image._origin),
_s(image._s), _t(image._t), _r(image._r),
_internalTextureFormat(image._internalTextureFormat),

28
src/osgPlugins/ive/DataOutputStream.cpp
View File

@ -1125,8 +1125,27 @@ void DataOutputStream::writeNode(const osg::Node* node)
}
}
IncludeImageMode DataOutputStream::getIncludeImageMode(const osg::Image* image) const
{
if (image)
{
if (image->getWriteHint()==osg::Image::STORE_INLINE)
{
return IMAGE_INCLUDE_DATA;
}
else if (image->getWriteHint()==osg::Image::EXTERNAL_FILE)
{
return IMAGE_REFERENCE_FILE;
}
}
return getIncludeImageMode();
}
void DataOutputStream::writeImage(osg::Image *image)
{
IncludeImageMode mode = getIncludeImageMode(image);
if ( getVersion() >= VERSION_0029)
{
osg::ImageSequence* is = dynamic_cast<osg::ImageSequence*>(image);
@ -1137,19 +1156,20 @@ void DataOutputStream::writeImage(osg::Image *image)
else
{
writeInt(IVEIMAGE);
writeChar(getIncludeImageMode());
writeImage(getIncludeImageMode(),image);
writeChar(mode);
writeImage(mode,image);
}
}
else
{
writeChar(getIncludeImageMode());
writeImage(getIncludeImageMode(),image);
writeChar(mode);
writeImage(mode,image);
}
}
void DataOutputStream::writeImage(IncludeImageMode mode, osg::Image *image)
{
osg::notify(osg::NOTICE)<<"DataOutputStream::writeImage("<<mode<<" image->getFileName()="<<image->getFileName()<<std::endl;
switch(mode) {
case IMAGE_INCLUDE_DATA:
// Include image data in stream

1
src/osgPlugins/ive/DataOutputStream.h
View File

@ -107,6 +107,7 @@ public:
// Set and get include image data in stream
void setIncludeImageMode(IncludeImageMode mode) {_includeImageMode=mode;};
IncludeImageMode getIncludeImageMode() const {return _includeImageMode;};
IncludeImageMode getIncludeImageMode(const osg::Image* image) const;
// Set and get include external references in stream
void setIncludeExternalReferences(bool b) {_includeExternalReferences=b;};

10
src/osgPlugins/ive/Image.cpp
View File

@ -36,6 +36,11 @@ void Image::write(DataOutputStream* out)
// Write name
out->writeString(getFileName());
if ( out->getVersion() >= VERSION_0031)
{
out->writeInt((int)getWriteHint());
}
// Write width, height, depth of image.
out->writeInt(s());
out->writeInt(t());
@ -91,6 +96,11 @@ void Image::read(DataInputStream* in)
// Read name
setFileName(in->readString());
if ( in->getVersion() >= VERSION_0031)
{
setWriteHint((osg::Image::WriteHint)in->readInt());
}
// Read width, height, depth of image.
int is=in->readInt();
int it=in->readInt();

2
src/osgPlugins/ive/ImageLayer.cpp
View File

@ -32,7 +32,7 @@ void ImageLayer::write(DataOutputStream* out)
throw Exception("ImageLayer::write(): Could not cast this osgLayer::ImageLayer to an osgTerrain::Layer.");
IncludeImageMode imMode = out->getIncludeImageMode();
IncludeImageMode imMode = out->getIncludeImageMode(getImage());
if (getFileName().empty() && imMode==IMAGE_REFERENCE_FILE) imMode = IMAGE_INCLUDE_DATA;

3
src/osgPlugins/ive/IveVersion.h
View File

@ -40,8 +40,9 @@
#define VERSION_0029 29
#define VERSION_0030 30
#define VERSION_0031 31
#define VERSION_0032 32
#define VERSION VERSION_0031
#define VERSION VERSION_0032
/* The BYTE_SEX tag is used to check the endian
of the IVE file being read in. The IVE format

5
src/osgPlugins/ive/ReaderWriterIVE.cpp
View File

@ -48,7 +48,8 @@ class ReaderWriterIVE : public ReaderWriter
// code for setting up the database path so that internally referenced files are searched for on relative paths.
osg::ref_ptr<Options> local_opt = options ? static_cast<Options*>(options->clone(osg::CopyOp::SHALLOW_COPY)) : new Options;
local_opt->setDatabasePath(osgDB::getFilePath(fileName));
local_opt->getDatabasePathList().push_front(osgDB::getFilePath(fileName));
std::ifstream istream(fileName.c_str(), std::ios::in | std::ios::binary);
return readImage(istream, local_opt.get());
}
@ -63,7 +64,7 @@ class ReaderWriterIVE : public ReaderWriter
// code for setting up the database path so that internally referenced file are searched for on relative paths.
osg::ref_ptr<Options> local_opt = options ? static_cast<Options*>(options->clone(osg::CopyOp::SHALLOW_COPY)) : new Options;
local_opt->setDatabasePath(osgDB::getFilePath(fileName));
local_opt->getDatabasePathList().push_front(osgDB::getFilePath(fileName));
std::ifstream istream(fileName.c_str(), std::ios::in | std::ios::binary);
return readNode(istream,local_opt.get());

2
src/osgPlugins/ive/TextureCubeMap.cpp
View File

@ -50,7 +50,7 @@ void TextureCubeMap::write(DataOutputStream* out){
else
{
// Should we include images date in stream
IncludeImageMode includeImg = out->getIncludeImageMode();
IncludeImageMode includeImg = out->getIncludeImageMode(getImage(osg::TextureCubeMap::POSITIVE_X));
out->writeChar(includeImg);
out->writeImage(includeImg,getImage(osg::TextureCubeMap::POSITIVE_X));