/*

 * LIBOIL - Library of Optimized Inner Loops

 * Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org>

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

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

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,

 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING

 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGE.

 */

//Portions Copyright (c)  2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. 

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include <liboil/liboilfunction.h>

OIL_DECLARE_CLASS (rowsad8x8_u8);

OIL_DECLARE_CLASS (colsad8x8_u8);

static void

rowsad8x8_u8_mmx (uint32_t *dest, uint8_t *src1, uint8_t *src2)

{

  uint32_t MaxSad;

#if !defined(__WINSCW__) && !defined(__WINS__)      

  __asm__ __volatile__ (

    "  pxor        %%mm6, %%mm6     \n\t"	/* zero out mm6 for unpack */

    "  pxor        %%mm7, %%mm7     \n\t" 	/* zero out mm7 for unpack */

    "  movq        (%1), %%mm0      \n\t"	/* take 8 bytes */

    "  movq        (%2), %%mm1      \n\t"

    "  movq        %%mm0, %%mm2     \n\t"

    "  psubusb     %%mm1, %%mm0     \n\t" 	/* A - B */

    "  psubusb     %%mm2, %%mm1     \n\t"	/* B - A */

    "  por         %%mm1, %%mm0     \n\t"      	/* and or gives abs difference */

    "  movq        %%mm0, %%mm1     \n\t"

    "  punpcklbw   %%mm6, %%mm0     \n\t"       /* ; unpack low four bytes to higher precision */

    "  punpckhbw   %%mm7, %%mm1     \n\t"       /* ; unpack high four bytes to higher precision */

    "  movq        %%mm0, %%mm2     \n\t"

    "  movq        %%mm1, %%mm3     \n\t"

    "  psrlq       $32, %%mm2       \n\t"	/* fold and add */

    "  psrlq       $32, %%mm3       \n\t"

    "  paddw       %%mm2, %%mm0     \n\t"

    "  paddw       %%mm3, %%mm1     \n\t"

    "  movq        %%mm0, %%mm2     \n\t"

    "  movq        %%mm1, %%mm3     \n\t"

    "  psrlq       $16, %%mm2       \n\t"

    "  psrlq       $16, %%mm3       \n\t"

    "  paddw       %%mm2, %%mm0     \n\t"

    "  paddw       %%mm3, %%mm1     \n\t"

    "  psubusw     %%mm0, %%mm1     \n\t"

    "  paddw       %%mm0, %%mm1     \n\t" 	/* mm1 = max(mm1, mm0) */

    "  movd        %%mm1, %0        \n\t"

    "  andl        $0xffff, %0      \n\t"

    "  emms                         \n\t"

     : "=m" (MaxSad),

       "+r" (src1), 

       "+r" (src2) 

     :

     : "memory"

  );

  *dest = MaxSad;

#endif  

}

OIL_DEFINE_IMPL_FULL (rowsad8x8_u8_mmx, rowsad8x8_u8, OIL_IMPL_FLAG_MMX);

static void

rowsad8x8_u8_mmxext (uint32_t *dest, uint8_t *src1, uint8_t *src2)

{

#if !defined(__WINSCW__) && !defined(__WINS__)      

  uint32_t MaxSad;

  __asm__ __volatile__ (

    "  movd        (%1), %%mm0      \n\t"

    "  movd        (%2), %%mm1      \n\t"

    "  psadbw      %%mm0, %%mm1     \n\t"

    "  movd        4(%1), %%mm2     \n\t"

    "  movd        4(%2), %%mm3     \n\t"

    "  psadbw      %%mm2, %%mm3     \n\t"

    "  pmaxsw      %%mm1, %%mm3     \n\t"

    "  movd        %%mm3, %0        \n\t"

    "  andl        $0xffff, %0      \n\t"

    "  emms                         \n\t"

     : "=m" (MaxSad),

       "+r" (src1), 

       "+r" (src2) 

     :

     : "memory"

  );

  *dest = MaxSad;

#endif  

}

OIL_DEFINE_IMPL_FULL (rowsad8x8_u8_mmxext, rowsad8x8_u8, OIL_IMPL_FLAG_MMX | OIL_IMPL_FLAG_MMXEXT);

static void

colsad8x8_u8_mmx (uint32_t *dest, uint8_t *src1, int ss1, uint8_t *src2, int ss2)

{

#if !defined(__WINSCW__) && !defined(__WINS__)      

  uint32_t MaxSad;

  __asm__ __volatile__ (

    "  pxor        %%mm3, %%mm3     \n\t"	/* zero out mm3 for unpack */

    "  pxor        %%mm4, %%mm4     \n\t"	/* mm4 low sum */

    "  pxor        %%mm5, %%mm5     \n\t" 	/* mm5 high sum */

    "  pxor        %%mm6, %%mm6     \n\t"	/* mm6 low sum */

    "  pxor        %%mm7, %%mm7     \n\t" 	/* mm7 high sum */

    "  mov         $4, %%edi        \n\t"	/* 4 rows */

    "1:                             \n\t"

    "  movq        (%1), %%mm0      \n\t"	/* take 8 bytes */

    "  movq        (%2), %%mm1      \n\t"	/* take 8 bytes */

    "  movq        %%mm0, %%mm2     \n\t"

    "  psubusb     %%mm1, %%mm0     \n\t" 	/* A - B */

    "  psubusb     %%mm2, %%mm1     \n\t"	/* B - A */

    "  por         %%mm1, %%mm0     \n\t"      	/* and or gives abs difference */

    "  movq        %%mm0, %%mm1     \n\t"

    "  punpcklbw   %%mm3, %%mm0     \n\t"	/* unpack to higher precision for accumulation */

    "  paddw       %%mm0, %%mm4     \n\t"	/* accumulate difference... */

    "  punpckhbw   %%mm3, %%mm1     \n\t"	/* unpack high four bytes to higher precision */

    "  paddw       %%mm1, %%mm5     \n\t"	/* accumulate difference... */

    "  add         %3, %1           \n\t"	/* Inc pointer into the new data */

    "  add         %3, %2           \n\t"	/* Inc pointer into the new data */

    "  dec         %%edi            \n\t"

    "  jnz 1b                       \n\t"

    "  mov         $4, %%edi        \n\t"	/* 4 rows */

    "2:                             \n\t"

    "  movq        (%1), %%mm0      \n\t"	/* take 8 bytes */

    "  movq        (%2), %%mm1      \n\t"	/* take 8 bytes */

    "  movq        %%mm0, %%mm2     \n\t"

    "  psubusb     %%mm1, %%mm0     \n\t" 	/* A - B */

    "  psubusb     %%mm2, %%mm1     \n\t"	/* B - A */

    "  por         %%mm1, %%mm0     \n\t"      	/* and or gives abs difference */

    "  movq        %%mm0, %%mm1     \n\t"

    "  punpcklbw   %%mm3, %%mm0     \n\t"	/* unpack to higher precision for accumulation */

    "  paddw       %%mm0, %%mm6     \n\t"	/* accumulate difference... */

    "  punpckhbw   %%mm3, %%mm1     \n\t"	/* unpack high four bytes to higher precision */

    "  paddw       %%mm1, %%mm7     \n\t"	/* accumulate difference... */

    "  add         %3, %1           \n\t"	/* Inc pointer into the new data */

    "  add         %3, %2           \n\t"	/* Inc pointer into the new data */

    "  dec         %%edi            \n\t"

    "  jnz 2b                       \n\t"

    "  psubusw     %%mm6, %%mm7     \n\t"

    "  paddw       %%mm6, %%mm7     \n\t" 	/* mm7 = max(mm7, mm6) */

    "  psubusw     %%mm4, %%mm5     \n\t" 	

    "  paddw       %%mm4, %%mm5     \n\t" 	/* mm5 = max(mm5, mm4) */

    "  psubusw     %%mm5, %%mm7     \n\t" 	

    "  paddw       %%mm5, %%mm7     \n\t" 	/* mm7 = max(mm5, mm7) */

    "  movq        %%mm7, %%mm6     \n\t"

    "  psrlq       $32, %%mm6       \n\t"

    "  psubusw     %%mm6, %%mm7     \n\t" 	

    "  paddw       %%mm6, %%mm7     \n\t" 	/* mm7 = max(mm5, mm7) */

    "  movq        %%mm7, %%mm6     \n\t"

    "  psrlq       $16, %%mm6       \n\t"

    "  psubusw     %%mm6, %%mm7     \n\t" 	

    "  paddw       %%mm6, %%mm7     \n\t" 	/* mm7 = max(mm5, mm7) */

    "  movd        %%mm7, %0        \n\t"

    "  andl        $0xffff, %0      \n\t"

    "  emms                         \n\t"

     : "=r" (MaxSad),

       "+r" (src1), 

       "+r" (src2) 

     : "r" (ss1)

     : "memory", "edi"

  );

  *dest = MaxSad;

#endif  

}

OIL_DEFINE_IMPL_FULL (colsad8x8_u8_mmx, colsad8x8_u8, OIL_IMPL_FLAG_MMX);

static void

colsad8x8_u8_mmxext (uint32_t *dest, uint8_t *src1, int ss1, uint8_t *src2, int ss2)

{

#if !defined(__WINSCW__) && !defined(__WINS__)      

  uint32_t MaxSad;

  __asm__ __volatile__ (

    "  pxor        %%mm3, %%mm3     \n\t"	/* zero out mm3 for unpack */

    "  pxor        %%mm4, %%mm4     \n\t"	/* mm4 low sum */

    "  pxor        %%mm5, %%mm5     \n\t" 	/* mm5 high sum */

    "  pxor        %%mm6, %%mm6     \n\t"	/* mm6 low sum */

    "  pxor        %%mm7, %%mm7     \n\t" 	/* mm7 high sum */

    "  mov         $4, %%edi        \n\t"	/* 4 rows */

    "1:                             \n\t"

    "  movq        (%1), %%mm0      \n\t"	/* take 8 bytes */

    "  movq        (%2), %%mm1      \n\t"	/* take 8 bytes */

    "  movq        %%mm0, %%mm2     \n\t"

    "  psubusb     %%mm1, %%mm0     \n\t" 	/* A - B */

    "  psubusb     %%mm2, %%mm1     \n\t"	/* B - A */

    "  por         %%mm1, %%mm0     \n\t"      	/* and or gives abs difference */

    "  movq        %%mm0, %%mm1     \n\t"

    "  punpcklbw   %%mm3, %%mm0     \n\t"	/* unpack to higher precision for accumulation */

    "  paddw       %%mm0, %%mm4     \n\t"	/* accumulate difference... */

    "  punpckhbw   %%mm3, %%mm1     \n\t"	/* unpack high four bytes to higher precision */

    "  paddw       %%mm1, %%mm5     \n\t"	/* accumulate difference... */

    "  add         %3, %1           \n\t"	/* Inc pointer into the new data */

    "  add         %3, %2           \n\t"	/* Inc pointer into the new data */

    "  dec         %%edi            \n\t"

    "  jnz 1b                       \n\t"

    "  mov         $4, %%edi        \n\t"	/* 4 rows */

    "2:                             \n\t"

    "  movq        (%1), %%mm0      \n\t"	/* take 8 bytes */

    "  movq        (%2), %%mm1      \n\t"	/* take 8 bytes */

    "  movq        %%mm0, %%mm2     \n\t"

    "  psubusb     %%mm1, %%mm0     \n\t" 	/* A - B */

    "  psubusb     %%mm2, %%mm1     \n\t"	/* B - A */

    "  por         %%mm1, %%mm0     \n\t"      	/* and or gives abs difference */

    "  movq        %%mm0, %%mm1     \n\t"

    "  punpcklbw   %%mm3, %%mm0     \n\t"	/* unpack to higher precision for accumulation */

    "  paddw       %%mm0, %%mm6     \n\t"	/* accumulate difference... */

    "  punpckhbw   %%mm3, %%mm1     \n\t"	/* unpack high four bytes to higher precision */

    "  paddw       %%mm1, %%mm7     \n\t"	/* accumulate difference... */

    "  add         %3, %1           \n\t"	/* Inc pointer into the new data */

    "  add         %3, %2           \n\t"	/* Inc pointer into the new data */

    "  dec         %%edi            \n\t"

    "  jnz 2b                       \n\t"

    "  pmaxsw      %%mm6, %%mm7     \n\t"

    "  pmaxsw      %%mm4, %%mm5     \n\t"

    "  pmaxsw      %%mm5, %%mm7     \n\t"

    "  movq        %%mm7, %%mm6     \n\t"

    "  psrlq       $32, %%mm6       \n\t"

    "  pmaxsw      %%mm6, %%mm7     \n\t"

    "  movq        %%mm7, %%mm6     \n\t"

    "  psrlq       $16, %%mm6       \n\t"

    "  pmaxsw      %%mm6, %%mm7     \n\t"

    "  movd        %%mm7, %0        \n\t"

    "  andl        $0xffff, %0      \n\t"

    "  emms                         \n\t"

     : "=r" (MaxSad),

       "+r" (src1), 

       "+r" (src2) 

     : "r" (ss1)

     : "memory", "edi"

  );

  *dest = MaxSad;

#endif

}

OIL_DEFINE_IMPL_FULL (colsad8x8_u8_mmxext, colsad8x8_u8, OIL_IMPL_FLAG_MMX | OIL_IMPL_FLAG_MMXEXT);

#ifdef	__SYMBIAN32__

OilFunctionImpl* __oil_function_impl_rowsad8x8_u8_mmx, rowsad8x8_u8() {

		return &_oil_function_impl_rowsad8x8_u8_mmx, rowsad8x8_u8;

}

#endif

#ifdef	__SYMBIAN32__

OilFunctionImpl* __oil_function_impl_rowsad8x8_u8_mmxext, rowsad8x8_u8() {

		return &_oil_function_impl_rowsad8x8_u8_mmxext, rowsad8x8_u8;

}

#endif

#ifdef	__SYMBIAN32__

OilFunctionImpl* __oil_function_impl_colsad8x8_u8_mmx, colsad8x8_u8() {

		return &_oil_function_impl_colsad8x8_u8_mmx, colsad8x8_u8;

}

#endif

#ifdef	__SYMBIAN32__

OilFunctionImpl* __oil_function_impl_colsad8x8_u8_mmxext, colsad8x8_u8() {

		return &_oil_function_impl_colsad8x8_u8_mmxext, colsad8x8_u8;

}

#endif