OpenCL support

クラス
class	cv::ocl::Device
class	cv::ocl::Context
class	cv::ocl::Platform
class	cv::ocl::Queue
class	cv::ocl::KernelArg
class	cv::ocl::Kernel
class	cv::ocl::Program
class	cv::ocl::ProgramSource
class	cv::ocl::PlatformInfo
class	cv::ocl::Image2D
class	cv::ocl::Timer
class	cv::ocl::OpenCLExecutionContext
class	cv::ocl::OpenCLExecutionContextScope

列挙型
enum	OclVectorStrategy { OCL_VECTOR_OWN = 0 , OCL_VECTOR_MAX = 1 , OCL_VECTOR_DEFAULT = OCL_VECTOR_OWN }

関数
CV_EXPORTS_W bool	cv::ocl::haveOpenCL ()
CV_EXPORTS_W bool	cv::ocl::useOpenCL ()
CV_EXPORTS_W bool	cv::ocl::haveAmdBlas ()
CV_EXPORTS_W bool	cv::ocl::haveAmdFft ()
CV_EXPORTS_W void	cv::ocl::setUseOpenCL (bool flag)
CV_EXPORTS_W void	cv::ocl::finish ()
CV_EXPORTS bool	cv::ocl::haveSVM ()
CV_EXPORTS void	cv::ocl::attachContext (const String &platformName, void *platformID, void *context, void *deviceID)
	Attaches OpenCL context to OpenCV [詳解]
CV_EXPORTS void	cv::ocl::convertFromBuffer (void *cl_mem_buffer, size_t step, int rows, int cols, int type, UMat &dst)
	Convert OpenCL buffer to UMat [詳解]
CV_EXPORTS void	cv::ocl::convertFromImage (void *cl_mem_image, UMat &dst)
	Convert OpenCL image2d_t to UMat [詳解]
void	cv::ocl::initializeContextFromHandle (Context &ctx, void *platform, void *context, void *device)
CV_EXPORTS const char *	cv::ocl::convertTypeStr (int sdepth, int ddepth, int cn, char *buf)
CV_EXPORTS const char *	cv::ocl::typeToStr (int t)
CV_EXPORTS const char *	cv::ocl::memopTypeToStr (int t)
CV_EXPORTS const char *	cv::ocl::vecopTypeToStr (int t)
CV_EXPORTS const char *	cv::ocl::getOpenCLErrorString (int errorCode)
CV_EXPORTS String	cv::ocl::kernelToStr (InputArray _kernel, int ddepth=-1, const char *name=NULL)
CV_EXPORTS void	cv::ocl::getPlatfomsInfo (std::vector< PlatformInfo > &platform_info)
CV_EXPORTS int	cv::ocl::predictOptimalVectorWidth (InputArray src1, InputArray src2=noArray(), InputArray src3=noArray(), InputArray src4=noArray(), InputArray src5=noArray(), InputArray src6=noArray(), InputArray src7=noArray(), InputArray src8=noArray(), InputArray src9=noArray(), OclVectorStrategy strat=OCL_VECTOR_DEFAULT)
CV_EXPORTS int	cv::ocl::checkOptimalVectorWidth (const int *vectorWidths, InputArray src1, InputArray src2=noArray(), InputArray src3=noArray(), InputArray src4=noArray(), InputArray src5=noArray(), InputArray src6=noArray(), InputArray src7=noArray(), InputArray src8=noArray(), InputArray src9=noArray(), OclVectorStrategy strat=OCL_VECTOR_DEFAULT)
CV_EXPORTS int	cv::ocl::predictOptimalVectorWidthMax (InputArray src1, InputArray src2=noArray(), InputArray src3=noArray(), InputArray src4=noArray(), InputArray src5=noArray(), InputArray src6=noArray(), InputArray src7=noArray(), InputArray src8=noArray(), InputArray src9=noArray())
CV_EXPORTS void	cv::ocl::buildOptionsAddMatrixDescription (String &buildOptions, const String &name, InputArray _m)
CV_EXPORTS MatAllocator *	cv::ocl::getOpenCLAllocator ()

変数
class CV_EXPORTS	cv::ocl::Context
class CV_EXPORTS_W_SIMPLE	cv::ocl::Device
class CV_EXPORTS	cv::ocl::Kernel
class CV_EXPORTS	cv::ocl::Program
class CV_EXPORTS	cv::ocl::ProgramSource
class CV_EXPORTS	cv::ocl::Queue
class CV_EXPORTS	cv::ocl::PlatformInfo
class CV_EXPORTS	cv::ocl::Image2D

詳解

関数詳解

attachContext()

CV_EXPORTS void cv::ocl::attachContext	(	const String &	platformName,
		void *	platformID,
		void *	context,
		void *	deviceID
	)

Attaches OpenCL context to OpenCV

覚え書き

OpenCV will check if available OpenCL platform has platformName name, then assign context to OpenCV and call clRetainContext function. The deviceID device will be used as target device and new command queue will be created.

引数

platformName	name of OpenCL platform to attach, this string is used to check if platform is available to OpenCV at runtime
platformID	ID of platform attached context was created for
context	OpenCL context to be attached to OpenCV
deviceID	ID of device, must be created from attached context

convertFromBuffer()

CV_EXPORTS void cv::ocl::convertFromBuffer	(	void *	cl_mem_buffer,
		size_t	step,
		int	rows,
		int	cols,
		int	type,
		UMat &	dst
	)

Convert OpenCL buffer to UMat

覚え書き

OpenCL buffer (cl_mem_buffer) should contain 2D image data, compatible with OpenCV. Memory content is not copied from clBuffer to UMat. Instead, buffer handle assigned to UMat and clRetainMemObject is called.

引数

cl_mem_buffer	source clBuffer handle
step	num of bytes in single row
rows	number of rows
cols	number of cols
type	OpenCV type of image
dst	destination UMat

convertFromImage()

CV_EXPORTS void cv::ocl::convertFromImage	(	void *	cl_mem_image,
		UMat &	dst
	)

Convert OpenCL image2d_t to UMat

覚え書き

OpenCL image2d_t (cl_mem_image), should be compatible with OpenCV UMat formats. Memory content is copied from image to UMat with clEnqueueCopyImageToBuffer function.

引数

cl_mem_image	source image2d_t handle
dst	destination UMat

initializeContextFromHandle()

void cv::ocl::initializeContextFromHandle	(	Context &	ctx,
		void *	platform,
		void *	context,
		void *	device
	)

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