OpenCL host code

// OpenCL functions, constants, etc. are also highlighted in OpenCL host code in the c or cpp language
cl::Event KernelFilterImages::runSingle(const cl::Image2D& imgSrc, SPImage2D& imgDst)
{
	const size_t rows = imgSrc.getImageInfo<CL_IMAGE_HEIGHT>();
	const size_t cols = imgSrc.getImageInfo<CL_IMAGE_WIDTH>();

	ASSERT(rows > 0 && cols > 0, "The image object seems to be invalid, no rows/cols set");
	ASSERT(imgSrc.getImageInfo<CL_IMAGE_FORMAT>().image_channel_data_type == CL_FLOAT, "Only float type images are supported");
	ASSERT(imgSrc.getInfo<CL_MEM_FLAGS>() == CL_MEM_READ_ONLY || imgSrc.getInfo<CL_MEM_FLAGS>() == CL_MEM_READ_WRITE, "Can't read the input image");

	imgDst = std::make_shared<cl::Image2D>(*context, CL_MEM_READ_WRITE, cl::ImageFormat(CL_R, CL_FLOAT), cols, rows);

	cl::Kernel kernel(*program, "filter_single");
	kernel.setArg(0, imgSrc);
	kernel.setArg(1, *imgDst);
	kernel.setArg(2, bufferKernel1);
	kernel.setArg(3, kernel1.rows);
	kernel.setArg(4, kernel1.rows / 2);
	kernel.setArg(5, kernel1.cols);
	kernel.setArg(6, kernel1.cols / 2);
	kernel.setArg(7, border);

	cl::Event eventFilter;
	const cl::NDRange global(cols, rows);
	queue->enqueueNDRangeKernel(kernel, cl::NullRange, global, cl::NullRange, &events, &eventFilter);
}