NEON speedup: 3.27x
Auto-vect speedup: 1.01x

NEON speedup: 1.75x
Auto-vect speedup: 1x

NEON speedup: 2.04x
Auto-vect speedup: 1x

NEON speedup: 2.75x
Auto-vect speedup: 1.01x

NEON speedup: 2.66x
Auto-vect speedup: 1x

NEON speedup: 2.95x
Auto-vect speedup: 1x

Test kernel: [-0.9432, -1.1528, 0, 1.1528, 0.9432]

NEON speedup: 1.96x
Auto-vect speedup: 1x

Test kernel: [0.0708, 0.2445, 0.3694, 0.2445, 0.0708]

NEON speedup: 3.14x
Auto-vect speedup: 1.6x

Test kernel: [-5, -2, 0, 2, 5]

NEON speedup: 1.95x
Auto-vect speedup: 1.17x

Test kernel: [-2, 0, 2]

NEON speedup: 1.84x
Auto-vect speedup: 1.2x

NEON speedup: 3.86x
Auto-vect speedup: 1.67x

Test kernel: [0.0708, 0.2445, 0.3694, 0.2445, 0.0708]

NEON speedup: 2.56x
Auto-vect speedup: 1.26x

Test kernel: [1, 3, 1]

NEON speedup: 4.1
Auto-vect speedup: 2.25

It should also be better for optimizing when compiling kernel.
Signed-off-by: Yan Wang <yan.wang@linux.intel.com>

Removed the "FileStorage::FORMAT_XML" to generalize format of the String
model.

highgui: Support to change trackbar count in setTrackbarPos and replaced deprecated CreateToolbarEx in Windows.

Signed-off-by: Yan Wang <yan.wang@linux.intel.com>

Signed-off-by: Yan Wang <yan.wang@linux.intel.com>

When accessing global memory by DWORD4, memory bandwidth
can be fully utilized on Intel platform. This patch will
make more image format(e.g. 8UC4) be processed in DWORD4
by work-item. After applying this patch, 3 subcase of
./opencv_perf_core --gtest_filter=OCL_RepeatFixture_Repeat.Repeat/*
can be speedup on HD4000 graphics card with Beignet:
OCL_RepeatFixture_Repeat.Repeat/2, 64% improvement.
OCL_RepeatFixture_Repeat.Repeat/6, 50% improvement.
OCL_RepeatFixture_Repeat.Repeat/8, 56% improvement.
Signed-off-by: Chuanbo Weng <chuanbo.weng@intel.com>