/*

* Simd Library (http://ermig1979.github.io/Simd).

*

* Copyright (c) 2011-2020 Yermalayeu Ihar.

*

* Permission is hereby granted, free of charge, to any person obtaining a copy

* of this software and associated documentation files (the "Software"), to deal

* in the Software without restriction, including without limitation the rights

* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

* copies of the Software, and to permit persons to whom the Software is

* furnished to do so, subject to the following conditions:

*

* The above copyright notice and this permission notice shall be included in

* all copies or substantial portions of the Software.

*

* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

* SOFTWARE.

*/

#include "Simd/SimdStore.h"

#include "Simd/SimdMemory.h"

namespace Simd

{

#ifdef SIMD_AVX2_ENABLE    

    namespace Avx2

    {

        template <bool align> SIMD_INLINE void Int16ToGray(const int16_t * src, uint8_t * dst)

        {

            __m256i lo = Load<align>((__m256i*)src + 0);

            __m256i hi = Load<align>((__m256i*)src + 1);

            Store<align>((__m256i*)dst, PackI16ToU8(lo, hi));

        }

Unexecuted instantiation: void Simd::Avx2::Int16ToGray<true>(short const*, unsigned char*)

Unexecuted instantiation: void Simd::Avx2::Int16ToGray<false>(short const*, unsigned char*)

        template <bool align> void Int16ToGray(const int16_t * src, size_t width, size_t height, size_t srcStride, uint8_t * dst, size_t dstStride)

        {

            assert(width >= A);

            if (align)

                assert(Aligned(src) && Aligned(srcStride, HA) && Aligned(dst) && Aligned(dstStride));

            size_t alignedWidth = AlignLo(width, A);

            for (size_t row = 0; row < height; ++row)

            {

                for (size_t col = 0; col < alignedWidth; col += A)

                    Int16ToGray<align>(src + col, dst + col);

                if (alignedWidth != width)

                    Int16ToGray<false>(src + width - A, dst + width - A);

                src += srcStride;

                dst += dstStride;

            }

        }

Unexecuted instantiation: void Simd::Avx2::Int16ToGray<true>(short const*, unsigned long, unsigned long, unsigned long, unsigned char*, unsigned long)

Unexecuted instantiation: void Simd::Avx2::Int16ToGray<false>(short const*, unsigned long, unsigned long, unsigned long, unsigned char*, unsigned long)

        void Int16ToGray(const uint8_t * src, size_t width, size_t height, size_t srcStride, uint8_t * dst, size_t dstStride)

        {

            if (Aligned(src) && Aligned(srcStride) && Aligned(dst) && Aligned(dstStride))

                Int16ToGray<true>((const int16_t *)src, width, height, srcStride / sizeof(int16_t), dst, dstStride);

            else

                Int16ToGray<false>((const int16_t *)src, width, height, srcStride / sizeof(int16_t), dst, dstStride);

        }

    }

#endif// SIMD_AVX2_ENABLE

}