AcquireOpenCLKernel 1354 magick/opencl.c cl_kernel AcquireOpenCLKernel(MagickCLEnv clEnv, MagickOpenCLProgram program, const char* kernelName) AcquireOpenCLKernel 2722 magick/opencl.c MagickPrivate cl_kernel AcquireOpenCLKernel(