C++ pointer::getNrOfChannels方法代码示例

static igtl::ImageMessage::Pointer createIGTLImageMessage(Image::pointer image) {
    // size parameters
    int   size[3]     = {(int)image->getWidth(), (int)image->getHeight(), (int)image->getDepth()};       // image dimension
    float spacing[3]  = {image->getSpacing().x(), image->getSpacing().y(), image->getSpacing().z()};     // spacing (mm/pixel)
    int   svoffset[3] = {0, 0, 0};           // sub-volume offset
    int   scalarType;
    size_t totalSize = image->getWidth()*image->getHeight()*image->getDepth()*image->getNrOfChannels();
    switch(image->getDataType()) {
        case TYPE_UINT8:
            scalarType = igtl::ImageMessage::TYPE_UINT8;
            totalSize *= sizeof(unsigned char);
            break;
        case TYPE_INT8:
            scalarType = igtl::ImageMessage::TYPE_INT8;
            totalSize *= sizeof(char);
            break;
        case TYPE_UINT16:
            scalarType = igtl::ImageMessage::TYPE_UINT16;
            totalSize *= sizeof(unsigned short);
            break;
        case TYPE_INT16:
            scalarType = igtl::ImageMessage::TYPE_INT16;
            totalSize *= sizeof(short);
            break;
        case TYPE_FLOAT:
            scalarType = igtl::ImageMessage::TYPE_FLOAT32;
            totalSize *= sizeof(float);
            break;
    }

    //------------------------------------------------------------
    // Create a new IMAGE type message
    igtl::ImageMessage::Pointer imgMsg = igtl::ImageMessage::New();
    imgMsg->SetDimensions(size);
    imgMsg->SetSpacing(spacing);
    imgMsg->SetNumComponents(image->getNrOfChannels());
    imgMsg->SetScalarType(scalarType);
    imgMsg->SetDeviceName("DummyImage");
    imgMsg->SetSubVolume(size, svoffset);
    imgMsg->AllocateScalars();

    ImageAccess::pointer access = image->getImageAccess(ACCESS_READ);
    memcpy(imgMsg->GetScalarPointer(), access->get(), totalSize);

    return imgMsg;
}

/*
void NoneLocalMeans::recompileOpenCLCode(Image::pointer input) {
	// Check if there is a need to recompile OpenCL code
	if (input->getDimensions() == mDimensionCLCodeCompiledFor &&
		input->getDataType() == mTypeCLCodeCompiledFor && !recompile)
		return;

	OpenCLDevice::pointer device = std::dynamic_pointer_cast<OpenCLDevice>(getMainDevice());
    recompile = false;
	std::string buildOptions = "";
	const bool writingTo3DTextures = device->getDevice().getInfo<CL_DEVICE_EXTENSIONS>().find("cl_khr_3d_image_writes") != std::string::npos;
	if (!writingTo3DTextures) {
		switch (mOutputType) {
		case TYPE_FLOAT:
			buildOptions += " -DTYPE=float";
			break;
		case TYPE_INT8:
			buildOptions += " -DTYPE=char";
			break;
		case TYPE_UINT8:
			buildOptions += " -DTYPE=uchar";
			break;
		case TYPE_INT16:
			buildOptions += " -DTYPE=short";
			break;
		case TYPE_UINT16:
			buildOptions += " -DTYPE=ushort";
			break;
		}
	}
    buildOptions += " -D WINDOW=";
    buildOptions += std::to_string((windowSize-1)/2);
	buildOptions += " -D GROUP=";
    buildOptions += std::to_string((groupSize-1)/2);
    
	std::string filename;
	//might have to seperate color vs gray here, for better runtime
	if (input->getDimensions() == 2) {
        if(k == 0){
            filename = "Algorithms/NoneLocalMeans/NoneLocalMeans2Dconstant.cl";
        }else if(k == 1){
            filename = "Algorithms/NoneLocalMeans/NoneLocalMeans2Dgaussian.cl";
        }else{
            filename = "Algorithms/NoneLocalMeans/NoneLocalMeans2Dconstant.cl";
        }
		//filename = "Algorithms/NoneLocalMeans/NoneLocalMeans2DgsPixelWise.cl";
		//filename = "Algorithms/NoneLocalMeans/NoneLocalMeans2Dgs.cl";
        //filename = "Algorithms/NoneLocalMeans/NoneLocalMeans2Dc.cl";
	}
	else {
		filename = "Algorithms/NoneLocalMeans/NoneLocalMeans3Dgs.cl";
	}
	int programNr = device->createProgramFromSource(Config::getKernelSourcePath() + filename, buildOptions);
	mKernel = cl::Kernel(device->getProgram(programNr), "noneLocalMeans");
	mDimensionCLCodeCompiledFor = input->getDimensions();
	mTypeCLCodeCompiledFor = input->getDataType();
}*/
void NonLocalMeans::execute() {
    std::cout << "EXECUTE" << std::endl;
    Image::pointer input = getInputData<Image>(0);
    Image::pointer output = getOutputData<Image>(0);
    std::cout << "GOT DATA" << std::endl;

    // Initialize output image
    ExecutionDevice::pointer device = std::dynamic_pointer_cast<OpenCLDevice>(getMainDevice());
    if(mOutputTypeSet) {
        output->create(input->getSize(), mOutputType, input->getNrOfChannels());
        output->setSpacing(input->getSpacing());
    } else {
        output->createFromImage(input);
    }
    mOutputType = output->getDataType();
    SceneGraph::setParentNode(output, input);
    
    
    if(device->isHost()) {
        switch(input->getDataType()) {
                fastSwitchTypeMacro(executeAlgorithmOnHost<FAST_TYPE>(input, output, groupSize, windowSize, denoiseStrength, sigma));
        }
    } else {
        OpenCLDevice::pointer clDevice = std::static_pointer_cast<OpenCLDevice>(device);
        
        recompileOpenCLCode(input);
        
        cl::NDRange globalSize;
        
        OpenCLImageAccess::pointer inputAccess = input->getOpenCLImageAccess(ACCESS_READ, clDevice);
        if(input->getDimensions() == 2) {
            std::cout << "DOING CL" << std::endl;
            OpenCLImageAccess::pointer outputAccess = output->getOpenCLImageAccess(ACCESS_READ_WRITE, clDevice);
            mKernel.setArg(2, (denoiseStrength*denoiseStrength));
            mKernel.setArg(3, (sigma*sigma));
            globalSize = cl::NDRange(input->getWidth(),input->getHeight());
            mKernel.setArg(0, *inputAccess->get2DImage());
            mKernel.setArg(1, *outputAccess->get2DImage());
            clDevice->getCommandQueue().enqueueNDRangeKernel(
                    mKernel,
                    cl::NullRange,
                    globalSize,
                    cl::NullRange
//.........这里部分代码省略.........