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;******************************************************************************
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;* Pixel utilities SIMD
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;*
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;* Copyright (C) 2002-2004 Michael Niedermayer
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;* Copyright (C) 2014 Clément Bœsch
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;*
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;* This file is part of FFmpeg.
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;*
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;* FFmpeg is free software; you can redistribute it and/or
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;* modify it under the terms of the GNU Lesser General Public
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;* License as published by the Free Software Foundation; either
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;* version 2.1 of the License, or (at your option) any later version.
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;*
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;* FFmpeg is distributed in the hope that it will be useful,
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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;* Lesser General Public License for more details.
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;*
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;* You should have received a copy of the GNU Lesser General Public
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;* License along with FFmpeg; if not, write to the Free Software
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;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;******************************************************************************
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%include "x86util.asm"
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SECTION .text
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;-------------------------------------------------------------------------------
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; int ff_pixelutils_sad_8x8_mmx(const uint8_t *src1, ptrdiff_t stride1,
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;                               const uint8_t *src2, ptrdiff_t stride2);
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;-------------------------------------------------------------------------------
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INIT_MMX mmx
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cglobal pixelutils_sad_8x8, 4,4,0, src1, stride1, src2, stride2
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    pxor        m7, m7
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    pxor        m6, m6
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%rep 4
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    mova        m0, [src1q]
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    mova        m2, [src1q + stride1q]
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    mova        m1, [src2q]
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    mova        m3, [src2q + stride2q]
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    psubusb     m4, m0, m1
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    psubusb     m5, m2, m3
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    psubusb     m1, m0
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    psubusb     m3, m2
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    por         m1, m4
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    por         m3, m5
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    punpcklbw   m0, m1, m7
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    punpcklbw   m2, m3, m7
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    punpckhbw   m1, m7
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    punpckhbw   m3, m7
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    paddw       m0, m1
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    paddw       m2, m3
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    paddw       m0, m2
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    paddw       m6, m0
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    lea         src1q, [src1q + 2*stride1q]
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    lea         src2q, [src2q + 2*stride2q]
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%endrep
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    psrlq       m0, m6, 32
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    paddw       m6, m0
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    psrlq       m0, m6, 16
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    paddw       m6, m0
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    movd        eax, m6
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    movzx       eax, ax
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    RET
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;-------------------------------------------------------------------------------
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; int ff_pixelutils_sad_8x8_mmxext(const uint8_t *src1, ptrdiff_t stride1,
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;                                  const uint8_t *src2, ptrdiff_t stride2);
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;-------------------------------------------------------------------------------
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INIT_MMX mmxext
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cglobal pixelutils_sad_8x8, 4,4,0, src1, stride1, src2, stride2
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    pxor        m2, m2
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%rep 4
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    mova        m0, [src1q]
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    mova        m1, [src1q + stride1q]
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    psadbw      m0, [src2q]
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    psadbw      m1, [src2q + stride2q]
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    paddw       m2, m0
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    paddw       m2, m1
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    lea         src1q, [src1q + 2*stride1q]
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    lea         src2q, [src2q + 2*stride2q]
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%endrep
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    movd        eax, m2
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    RET
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;-------------------------------------------------------------------------------
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; int ff_pixelutils_sad_16x16_mmxext(const uint8_t *src1, ptrdiff_t stride1,
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;                                    const uint8_t *src2, ptrdiff_t stride2);
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;-------------------------------------------------------------------------------
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INIT_MMX mmxext
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cglobal pixelutils_sad_16x16, 4,4,0, src1, stride1, src2, stride2
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    pxor        m2, m2
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%rep 16
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    mova        m0, [src1q]
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    mova        m1, [src1q + 8]
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    psadbw      m0, [src2q]
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    psadbw      m1, [src2q + 8]
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    paddw       m2, m0
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    paddw       m2, m1
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    add         src1q, stride1q
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    add         src2q, stride2q
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%endrep
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    movd        eax, m2
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    RET
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;-------------------------------------------------------------------------------
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; int ff_pixelutils_sad_16x16_sse(const uint8_t *src1, ptrdiff_t stride1,
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;                                 const uint8_t *src2, ptrdiff_t stride2);
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;-------------------------------------------------------------------------------
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INIT_XMM sse2
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cglobal pixelutils_sad_16x16, 4,4,5, src1, stride1, src2, stride2
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    movu        m4, [src1q]
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    movu        m2, [src2q]
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    movu        m1, [src1q + stride1q]
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    movu        m3, [src2q + stride2q]
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    psadbw      m4, m2
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    psadbw      m1, m3
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    paddw       m4, m1
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%rep 7
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    lea         src1q, [src1q + 2*stride1q]
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    lea         src2q, [src2q + 2*stride2q]
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    movu        m0, [src1q]
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    movu        m2, [src2q]
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    movu        m1, [src1q + stride1q]
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    movu        m3, [src2q + stride2q]
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    psadbw      m0, m2
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    psadbw      m1, m3
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    paddw       m4, m0
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    paddw       m4, m1
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%endrep
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    movhlps     m0, m4
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    paddw       m4, m0
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    movd        eax, m4
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    RET
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;-------------------------------------------------------------------------------
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; int ff_pixelutils_sad_[au]_16x16_sse(const uint8_t *src1, ptrdiff_t stride1,
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;                                      const uint8_t *src2, ptrdiff_t stride2);
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;-------------------------------------------------------------------------------
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%macro SAD_XMM_16x16 1
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INIT_XMM sse2
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cglobal pixelutils_sad_%1_16x16, 4,4,3, src1, stride1, src2, stride2
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    mov%1       m2, [src2q]
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    psadbw      m2, [src1q]
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    mov%1       m1, [src2q + stride2q]
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    psadbw      m1, [src1q + stride1q]
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    paddw       m2, m1
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%rep 7
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    lea         src1q, [src1q + 2*stride1q]
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    lea         src2q, [src2q + 2*stride2q]
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    mov%1       m0, [src2q]
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    psadbw      m0, [src1q]
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    mov%1       m1, [src2q + stride2q]
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    psadbw      m1, [src1q + stride1q]
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    paddw       m2, m0
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    paddw       m2, m1
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%endrep
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    movhlps     m0, m2
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    paddw       m2, m0
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    movd        eax, m2
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    RET
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%endmacro
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SAD_XMM_16x16 a
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SAD_XMM_16x16 u