/*

 * 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 (diff8x8_s16_u8);

OIL_DECLARE_CLASS (diff8x8_const128_s16_u8);

OIL_DECLARE_CLASS (diff8x8_average_s16_u8);

static void

diff8x8_s16_u8_mmx (int16_t *dest, uint8_t *src1, int ss1, uint8_t *src2, int ss2)

{

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

  __asm__ __volatile__ (

    "  pxor        %%mm7, %%mm7     \n\t" 

#define LOOP \

    "  movq        (%0), %%mm0      \n\t" /* mm0 = FiltPtr */ \

    "  movq        (%1), %%mm1      \n\t" /* mm1 = ReconPtr */ \

    "  movq        %%mm0, %%mm2     \n\t" /* dup to prepare for up conversion */ \

    "  movq        %%mm1, %%mm3     \n\t" /* dup to prepare for up conversion */ \

    /* convert from UINT8 to INT16 */ \

    "  punpcklbw   %%mm7, %%mm0     \n\t" /* mm0 = INT16(FiltPtr) */ \

    "  punpcklbw   %%mm7, %%mm1     \n\t" /* mm1 = INT16(ReconPtr) */ \

    "  punpckhbw   %%mm7, %%mm2     \n\t" /* mm2 = INT16(FiltPtr) */ \

    "  punpckhbw   %%mm7, %%mm3     \n\t" /* mm3 = INT16(ReconPtr) */ \

    /* start calculation */ \

    "  psubw       %%mm1, %%mm0     \n\t" /* mm0 = FiltPtr - ReconPtr */ \

    "  psubw       %%mm3, %%mm2     \n\t" /* mm2 = FiltPtr - ReconPtr */ \

    "  movq        %%mm0,  (%2)     \n\t" /* write answer out */ \

    "  movq        %%mm2, 8(%2)     \n\t" /* write answer out */ \

    /* Increment pointers */ \

    "  add         $16, %2          \n\t" \

    "  add         %3, %0           \n\t" \

    "  add         %4, %1           \n\t"

    LOOP

    LOOP

    LOOP

    LOOP

    LOOP

    LOOP

    LOOP

    LOOP

#undef LOOP

    "  emms                         \n\t"

     : "+r" (src1),

       "+r" (src2),

       "+r" (dest)

     : "m" (ss1),

       "m" (ss2) 

     : "memory"

  );

#endif  

}

OIL_DEFINE_IMPL_FULL (diff8x8_s16_u8_mmx, diff8x8_s16_u8, OIL_IMPL_FLAG_MMX);

static void

diff8x8_const128_s16_u8_mmx (int16_t *dest, uint8_t *src1, int ss1)

{

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

  const int16_t tmp[4] = { 0x0080, 0x0080, 0x0080, 0x0080 };

  __asm__ __volatile__ (

    "  pxor        %%mm7, %%mm7     \n\t" 

    "  movq        (%3), %%mm1  \n\t"

#define LOOP \

    "  movq        (%0), %%mm0      \n\t" /* mm0 = FiltPtr */ \

    "  movq        %%mm0, %%mm2     \n\t" /* dup to prepare for up conversion */ \

    /* convert from UINT8 to INT16 */ \

    "  punpcklbw   %%mm7, %%mm0     \n\t" /* mm0 = INT16(FiltPtr) */ \

    "  punpckhbw   %%mm7, %%mm2     \n\t" /* mm2 = INT16(FiltPtr) */ \

    /* start calculation */ \

    "  psubw       %%mm1, %%mm0     \n\t" /* mm0 = FiltPtr - 128 */ \

    "  psubw       %%mm1, %%mm2     \n\t" /* mm2 = FiltPtr - 128 */ \

    "  movq        %%mm0,  (%1)     \n\t" /* write answer out */ \

    "  movq        %%mm2, 8(%1)     \n\t" /* write answer out */ \

    /* Increment pointers */ \

    "  add         $16, %1           \n\t" \

    "  add         %2, %0           \n\t"

    LOOP

    LOOP

    LOOP

    LOOP

    LOOP

    LOOP

    LOOP

    LOOP

#undef LOOP

    "  emms                         \n\t"

     : "+r" (src1),

       "+r" (dest)

     : "r" (ss1),

       "r" (tmp)

     : "memory"

  );

#endif  

}

OIL_DEFINE_IMPL_FULL (diff8x8_const128_s16_u8_mmx, diff8x8_const128_s16_u8, OIL_IMPL_FLAG_MMX);

static void

diff8x8_average_s16_u8_mmx (int16_t *dest, uint8_t *src1, int ss1, uint8_t *src2, int ss2, uint8_t *src3)

{

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

  __asm__ __volatile__ (

    "  pxor        %%mm7, %%mm7     \n\t" 

#define LOOP \

    "  movq        (%0), %%mm0      \n\t" /* mm0 = FiltPtr */ \

    "  movq        (%1), %%mm1      \n\t" /* mm1 = ReconPtr1 */ \

    "  movq        (%2), %%mm4      \n\t" /* mm1 = ReconPtr2 */ \

    "  movq        %%mm0, %%mm2     \n\t" /* dup to prepare for up conversion */ \

    "  movq        %%mm1, %%mm3     \n\t" /* dup to prepare for up conversion */ \

    "  movq        %%mm4, %%mm5     \n\t" /* dup to prepare for up conversion */ \

    /* convert from UINT8 to INT16 */ \

    "  punpcklbw   %%mm7, %%mm0     \n\t" /* mm0 = INT16(FiltPtr) */ \

    "  punpcklbw   %%mm7, %%mm1     \n\t" /* mm1 = INT16(ReconPtr1) */ \

    "  punpcklbw   %%mm7, %%mm4     \n\t" /* mm1 = INT16(ReconPtr2) */ \

    "  punpckhbw   %%mm7, %%mm2     \n\t" /* mm2 = INT16(FiltPtr) */ \

    "  punpckhbw   %%mm7, %%mm3     \n\t" /* mm3 = INT16(ReconPtr1) */ \

    "  punpckhbw   %%mm7, %%mm5     \n\t" /* mm3 = INT16(ReconPtr2) */ \

    /* average ReconPtr1 and ReconPtr2 */ \

    "  paddw       %%mm4, %%mm1     \n\t" /* mm1 = ReconPtr1 + ReconPtr2 */ \

    "  paddw       %%mm5, %%mm3     \n\t" /* mm3 = ReconPtr1 + ReconPtr2 */ \

    "  psrlw       $1, %%mm1        \n\t" /* mm1 = (ReconPtr1 + ReconPtr2) / 2 */ \

    "  psrlw       $1, %%mm3        \n\t" /* mm3 = (ReconPtr1 + ReconPtr2) / 2 */ \

    "  psubw       %%mm1, %%mm0     \n\t" /* mm0 = FiltPtr - ((ReconPtr1 + ReconPtr2) / 2) */ \

    "  psubw       %%mm3, %%mm2     \n\t" /* mm2 = FiltPtr - ((ReconPtr1 + ReconPtr2) / 2) */ \

    "  movq        %%mm0,  (%3)     \n\t" /* write answer out */ \

    "  movq        %%mm2, 8(%3)     \n\t" /* write answer out */ \

    /* Increment pointers */ \

    "  add         $16, %3           \n\t" \

    "  add         %4, %0           \n\t" \

    "  add         %5, %1           \n\t" \

    "  add         %5, %2           \n\t"

    LOOP

    LOOP

    LOOP

    LOOP

    LOOP

    LOOP

    LOOP

    LOOP

#undef LOOP

    "  emms                         \n\t"

     : "+r" (src1),

       "+r" (src2),

       "+r" (src3),

       "+r" (dest)

     : "m" (ss1),

       "m" (ss2) 

     : "memory"

  );

#endif  

}

OIL_DEFINE_IMPL_FULL (diff8x8_average_s16_u8_mmx, diff8x8_average_s16_u8, OIL_IMPL_FLAG_MMX);

#ifdef	__SYMBIAN32__

OilFunctionImpl* __oil_function_impl_diff8x8_s16_u8_mmx, diff8x8_s16_u8() {

		return &_oil_function_impl_diff8x8_s16_u8_mmx, diff8x8_s16_u8;

}

#endif

#ifdef	__SYMBIAN32__

OilFunctionImpl* __oil_function_impl_diff8x8_const128_s16_u8_mmx, diff8x8_const128_s16_u8() {

		return &_oil_function_impl_diff8x8_const128_s16_u8_mmx, diff8x8_const128_s16_u8;

}

#endif

#ifdef	__SYMBIAN32__

OilFunctionImpl* __oil_function_impl_diff8x8_average_s16_u8_mmx, diff8x8_average_s16_u8() {

		return &_oil_function_impl_diff8x8_average_s16_u8_mmx, diff8x8_average_s16_u8;

}

#endif