void ImageMixer::process() {
if (inport0_.isChanged() || inport1_.isChanged()) {
auto format0 = inport0_.getData()->getDataFormat();
auto format1 = inport1_.getData()->getDataFormat();
auto format = format0->getSize() > format1->getSize() ? format0 : format1;
if (format != outport_.getData()->getDataFormat()) {
auto dimensions = outport_.getData()->getDimensions();
auto img = std::make_shared<Image>(dimensions, format);
img->copyMetaDataFrom(*inport0_.getData());
outport_.setData(img);
}
}
utilgl::activateAndClearTarget(outport_);
shader_.activate();
TextureUnitContainer units;
utilgl::bindAndSetUniforms(shader_, units, inport0_, ImageType::ColorDepthPicking);
utilgl::bindAndSetUniforms(shader_, units, inport1_, ImageType::ColorDepthPicking);
utilgl::setUniforms(shader_, outport_, weight_);
utilgl::singleDrawImagePlaneRect();
shader_.deactivate();
utilgl::deactivateCurrentTarget();
}
std::shared_ptr<Volume> MPVMVolumeReader::readData(std::string filePath) {
if (!filesystem::fileExists(filePath)) {
std::string newPath = filesystem::addBasePath(filePath);
if (filesystem::fileExists(newPath)) {
filePath = newPath;
} else {
throw DataReaderException("Error could not find input file: " + filePath, IvwContext);
}
}
std::string fileDirectory = filesystem::getFileDirectory(filePath);
// Read the mpvm file content
std::string textLine;
std::vector<std::string> files;
{
std::ifstream f(filePath.c_str());
while (!f.eof()) {
getline(f, textLine);
textLine = trim(textLine);
files.push_back(textLine);
};
}
if (files.empty())
throw DataReaderException("Error: No PVM files found in " + filePath, IvwContext);
if (files.size() > 4)
throw DataReaderException("Error: Maximum 4 pvm files are supported, file: " + filePath,
IvwContext);
// Read all pvm volumes
std::vector<std::shared_ptr<Volume>> volumes;
for (size_t i = 0; i < files.size(); i++) {
auto newVol = PVMVolumeReader::readPVMData(fileDirectory + files[i]);
if (newVol)
volumes.push_back(newVol);
else
LogWarn("Could not load " << fileDirectory << files[i]);
}
if (volumes.empty())
throw DataReaderException("No PVM volumes could be read from file: " + filePath,
IvwContext);
if (volumes.size() == 1) {
printPVMMeta(*volumes[0], fileDirectory + files[0]);
return volumes[0];
}
// Make sure dimension and format match
const DataFormatBase* format = volumes[0]->getDataFormat();
size3_t mdim = volumes[0]->getDimensions();
for (size_t i = 1; i < volumes.size(); i++) {
if (format != volumes[i]->getDataFormat() || mdim != volumes[i]->getDimensions()) {
LogWarn("PVM volumes did not have the same format or dimensions, using first volume.");
printPVMMeta(*volumes[0], fileDirectory + files[0]);
return volumes[0];
}
}
// Create new format
const DataFormatBase* mformat =
DataFormatBase::get(format->getNumericType(), volumes.size(), format->getSize() * 8);
// Create new volume
auto volume = std::make_shared<Volume>();
glm::mat3 basis = volumes[0]->getBasis();
volume->setBasis(basis);
volume->setOffset(-0.5f * (basis[0] + basis[1] + basis[2]));
volume->setDimensions(mdim);
volume->dataMap_.initWithFormat(mformat);
volume->setDataFormat(mformat);
volume->copyMetaDataFrom(*volumes[0]);
// Merge descriptions but ignore the rest
if (auto metaData = volume->getMetaData<StringMetaData>("description")) {
std::string descStr = metaData->get();
for (size_t i = 1; i < volumes.size(); i++) {
metaData = volumes[0]->getMetaData<StringMetaData>("description");
if (metaData) descStr = descStr + ", " + metaData->get();
}
volume->setMetaData<StringMetaData>("description", descStr);
}
// Create RAM volume
auto mvolRAM = createVolumeRAM(mdim, mformat);
unsigned char* dataPtr = static_cast<unsigned char*>(mvolRAM->getData());
std::vector<const unsigned char*> volumesDataPtr;
for (size_t i = 0; i < volumes.size(); i++) {
volumesDataPtr.push_back(static_cast<const unsigned char*>(
volumes[i]->getRepresentation<VolumeRAM>()->getData()));
}
// Copy the data from the other volumes to the new multichannel volume
size_t mbytes = mformat->getSize();
size_t bytes = format->getSize();
size_t dims = mdim.x * mdim.y * mdim.z;
size_t vsize = volumesDataPtr.size();
for (size_t i = 0; i < dims; i++) {
for (size_t j = 0; j < vsize; j++) {
for (size_t b = 0; b < bytes; b++) {
dataPtr[i * mbytes + (j * bytes) + b] = volumesDataPtr[j][i * bytes + b];
}
}
}
volume->addRepresentation(mvolRAM);
printPVMMeta(*volume, filePath);
return volume;
}
