In C99 'inline' is not a hint to the compiler to inline the function,
it is an attribute that affects the linkage of the function.  'inline'
functions are required to have a definition in a different compiliation
unit, so compilers are free to delete 'inline' functions if they want to.

This issue can be seen in Clang when compiling at -O0.  Clang
will sometimes delete 'inline' functions which creates an invalid
program.

Issue 3746: http://code.opencv.org/issues/3746

Bugfix brute_force_match.cl (see http://code.opencv.org/issues/2837): wrong results for non-float descriptors in OpenCL BruteForceMatcher

Bugfix brute_force_match.cl (Bug #2837): wrong results for non-float descriptors in OpenCL BruteForceMatcher

This reverts commit 3dcddad8.

Conflicts:
	modules/ocl/src/opencl/haarobjectdetect.cl

This reverts commit 54ea5bba, reversing
changes made to 28e0d3d7.

Fixed an issue with weight assignment causing the resulting GMM weights to be unsorted in the CUDA and OCL versions of BackgroundSubtractorMOG2

The LLVM/Clang 3.3 has a bug when compile a cl kernel with
assignment of a scalar to a vector data type. This patch
could work around this bug.
Signed-off-by: Zhigang Gong <zhigang.gong@intel.com>

the `map` buffer does not have the same size with CUDA and index starts at [1, 1] instead of [0, 0].

static function qualifier replaced on inline to enable kernel compilation with OpenCL 1.1 embedded profile.

Improve ocl cvt_color performance for the following conversions: RGB<->BGR, RGB->Gray, RGB<->XYZ, RGB<->YCrCb, RGB<->YUV, and mRGBA<->RGBA.
The improvement was done basically by processing more than 1 pixel by each work-item and using vector's operations.
new performance tests were added

Added "sep_filter_singlepass" kernel that performs separable filtering in one kernel call
Added appropriate host part - sepFilter2D_SinglePass function and SingleStepSeparableFilterEngine_GPU class
Changed function declarations to enable their usage

There are some mixed implicitly/explicitly type conversion between
scalar and vector. Although the spec allows those conversion, I prefer
to make them consistent and use explicitly all the cases.
Signed-off-by: Zhigang Gong <zhigang.gong@intel.com>

Some of functions were enabled on Qualcomm S800 by changing grid size;
OpenCL kernel grid size unification for different platfroms;
Test pass rate improvements by inclreasing threshold;
Some tests were disabled for Android;
run.py was adopted for devices with brackets in in name.