void SoXipImage::GLRender(SoGLRenderAction * action)
{
try
{
if (!mConnectionsSet)
mConnectionsSet = setKitConnections();
SoXipData * eltLut = (SoXipData *)SoXipLutElement::get(action->getState());
// If LUT presence change, or image is dirty, update texture mode
bool updateTexMode = ((eltLut == 0) == mHasLut) || mImageDirty;
mHasLut = (eltLut != 0); // Rememeber if we had a LUT or not
if (updateTexMode && mTextureMode) {
// This is a hack to keep same behavior as previous SoXipImage
if (mHasLut) {
mTextureMode->set("REPLACE");
}
else {
SoXipDataImage * dip = image.getValue();
SbXipImage * ip = dip ? dip->get() : 0;
if (ip) {
if (ip->getComponents() > 2) {
mTextureMode->set("REPLACE");
}
else {
mTextureMode->set("MODULATE");
}
}
}
mImageDirty = false;
}
if (mConnectionsSet)
SoBaseKit::GLRender(action);
}
catch (...)
{
SoError::post(__FILE__, "Unknown error while rendering image");
}
}
void
SoXipComposeVec6::evaluate()
{
SO_ENGINE_OUTPUT(outVOI, SoMFInt32, setNum(6));
// intersection of plane and volume
SO_ENGINE_OUTPUT(outVOI, SoMFInt32, set1Value(0, xmin.getValue()) );
SO_ENGINE_OUTPUT(outVOI, SoMFInt32, set1Value(1, xmax.getValue()) );
SO_ENGINE_OUTPUT(outVOI, SoMFInt32, set1Value(2, ymin.getValue()) );
SO_ENGINE_OUTPUT(outVOI, SoMFInt32, set1Value(3, ymax.getValue()) );
SO_ENGINE_OUTPUT(outVOI, SoMFInt32, set1Value(4, zmin.getValue()) );
SO_ENGINE_OUTPUT(outVOI, SoMFInt32, set1Value(5, zmax.getValue()) );
// Reset outputs
SO_ENGINE_OUTPUT( numSlices, SoSFShort, setValue(0) );
SO_ENGINE_OUTPUT( output, SoXipSFDataImage, setValue(0) );
SoXipDataImage* imageData = image.getValue();
if( mImageData != imageData )
{
mImageData = image.getValue();
// Reset previous outputs
mOutputs.setNum(0);
if( mImageData )
{
SbXipImage* image = mImageData->get();
if( !image )
return ;
// Initialize outputs
unsigned int numSlices = image->getDimStored()[2];
mOutputs.setNum( numSlices );
for( unsigned int i = 0; i < numSlices; ++ i )
mOutputs.set1Value( i, 0 );
}
}
if( imageData )
{
SbXipImage* image = mImageData->get();
if( !image )
return ;
SbXipImageDimensions dimensions = image->getDimStored();
SbXipImageDimensions sliceDimensions = dimensions;
sliceDimensions[2] = 1;
int sliceIndex = this->sliceIndex.getValue();
if( sliceIndex < 0 || sliceIndex >= dimensions[2] )
return ;
if( mOutputs[sliceIndex] == 0 )
{
// Compute the model matrix of the selected frame
SbMatrix sliceModelMatrix = image->getModelMatrix();
sliceModelMatrix[2][0] /= dimensions[2];
sliceModelMatrix[2][1] /= dimensions[2];
sliceModelMatrix[2][2] /= dimensions[2];
sliceModelMatrix[3][0] += sliceIndex * sliceModelMatrix[2][0];
sliceModelMatrix[3][1] += sliceIndex * sliceModelMatrix[2][1];
sliceModelMatrix[3][2] += sliceIndex * sliceModelMatrix[2][2];
// Pointer to the selected slice
char* imagePtr = (char *) image->refBufferPtr();
unsigned int cellSize;
switch( image->getType() )
{
case SbXipImage::UNSIGNED_BYTE: cellSize = sizeof(unsigned char); break ;
case SbXipImage::BYTE: cellSize = sizeof(char); break ;
case SbXipImage::UNSIGNED_SHORT: cellSize = sizeof(unsigned short); break ;
case SbXipImage::SHORT: cellSize = sizeof(short); break ;
case SbXipImage::UNSIGNED_INT: cellSize = sizeof(unsigned int); break ;
case SbXipImage::INT: cellSize = sizeof(int); break ;
case SbXipImage::FLOAT: cellSize = sizeof(float); break ;
case SbXipImage::DOUBLE: cellSize = sizeof(double); break ;
}
void* slicePtr = imagePtr + cellSize * image->getComponents() * dimensions[0] * dimensions[1] * sliceIndex;
SbXipImage* slice = new SbXipImage( sliceDimensions, image->getType(), image->getBitsStored(), slicePtr,
image->getComponents(), image->getComponentType(), image->getComponentLayoutType(), sliceModelMatrix,
image->getLineAlignment() );
image->unrefBufferPtr();
SoXipDataImage* output = new SoXipDataImage();
output->ref();
output->set( slice );
output->addRef( imageData );
mOutputs.set1Value( sliceIndex, output );
}
SO_ENGINE_OUTPUT( output, SoXipSFDataImage, setValue(mOutputs[sliceIndex]) );
}
}