/*

 * LIBOIL - Library of Optimized Inner Loops

 * Copyright (c) 2001,2002,2003,2004 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/liboil.h>

#include "jpeg.h"

#include <math.h>

/**

 * oil_conv8x8_s16_f64:

 * @d_8x8:

 * @dstr:

 * @s_8x8:

 * @sstr:

 *

 * Converts elements in source array @s_8x8 to the destination

 * type, placing the results in @d_8x8.

 */

OIL_DEFINE_CLASS (conv8x8_s16_f64,

    "int16_t * d_8x8, int dstr, double *s_8x8, int sstr");

/**

 * oil_conv8x8_f64_s16:

 * @d_8x8:

 * @dstr:

 * @s_8x8:

 * @sstr:

 *

 * Converts elements in source array @s_8x8 to the destination

 * type, placing the results in @d_8x8.  The conversion of source

 * values outside the destination range are undefined and

 * implementation dependent.

 */

OIL_DEFINE_CLASS (conv8x8_f64_s16,

    "double *d_8x8, int dstr, int16_t * s_8x8, int sstr");

/**

 * oil_clipconv8x8_u8_s16:

 * @d_8x8:

 * @dstr:

 * @s_8x8:

 * @sstr:

 *

 * Converts elements in source array @s_8x8 to the destination

 * type, placing the results in @d_8x8.  Source values outside

 * the destination range are clipped to the destination range.

 */

OIL_DEFINE_CLASS (clipconv8x8_u8_s16,

    "uint8_t * d_8x8, int dstr, int16_t * s_8x8, int sstr");

#define BLOCK8x8_F64(ptr, stride, row, column) \

	(*((double *)((unsigned char *)ptr + stride*row) + column))

#define BLOCK8x8_PTR_F64(ptr, stride, row, column) \

	((double *)((unsigned char *)ptr + stride*row) + column)

#define BLOCK8x8_S16(ptr, stride, row, column) \

	(*((int16_t *)((unsigned char *)ptr + stride*row) + column))

#define BLOCK8x8_U8(ptr, stride, row, column) \

	(*((uint8_t *)((unsigned char *)ptr + stride*row) + column))

static void

conv8x8_s16_f64_c (int16_t * dest, int dstr, double *src, int sstr)

{

  int i, j;

  for (i = 0; i < 8; i++) {

    for (j = 0; j < 8; j++) {

      BLOCK8x8_S16 (dest, dstr, i, j) = floor (0.5 + BLOCK8x8_F64 (src, sstr, i, j));

    }

  }

}

OIL_DEFINE_IMPL_REF (conv8x8_s16_f64_c, conv8x8_s16_f64);

static void

conv8x8_f64_s16_c (double *dest, int dstr, int16_t * src, int sstr)

{

  int i, j;

  for (i = 0; i < 8; i++) {

    for (j = 0; j < 8; j++) {

      BLOCK8x8_F64 (dest, dstr, i, j) = BLOCK8x8_S16 (src, sstr, i, j);

    }

  }

}

OIL_DEFINE_IMPL_REF (conv8x8_f64_s16_c, conv8x8_f64_s16);

static void

clipconv8x8_u8_s16_c (uint8_t * dest, int dstr, int16_t * src, int sstr)

{

  int i, j;

  int16_t x;

  for (i = 0; i < 8; i++) {

    for (j = 0; j < 8; j++) {

      x = BLOCK8x8_S16 (src, sstr, i, j);

      if (x < 0)

	x = 0;

      if (x > 255)

	x = 255;

      BLOCK8x8_U8 (dest, dstr, i, j) = x;

    }

  }

}

OIL_DEFINE_IMPL_REF (clipconv8x8_u8_s16_c, clipconv8x8_u8_s16);

#ifdef	__SYMBIAN32__

OilFunctionClass* __oil_function_class_conv8x8_s16_f64() {

		return &_oil_function_class_conv8x8_s16_f64;

}

#endif

#ifdef	__SYMBIAN32__

OilFunctionClass* __oil_function_class_conv8x8_f64_s16() {

		return &_oil_function_class_conv8x8_f64_s16;

}

#endif

#ifdef	__SYMBIAN32__

OilFunctionClass* __oil_function_class_clipconv8x8_u8_s16() {

		return &_oil_function_class_clipconv8x8_u8_s16;

}

#endif

#ifdef	__SYMBIAN32__

OilFunctionImpl* __oil_function_impl_conv8x8_s16_f64_c() {

		return &_oil_function_impl_conv8x8_s16_f64_c;

}

#endif

#ifdef	__SYMBIAN32__

OilFunctionImpl* __oil_function_impl_conv8x8_f64_s16_c() {

		return &_oil_function_impl_conv8x8_f64_s16_c;

}

#endif

#ifdef	__SYMBIAN32__

OilFunctionImpl* __oil_function_impl_clipconv8x8_u8_s16_c() {

		return &_oil_function_impl_clipconv8x8_u8_s16_c;

}

#endif

#ifdef	__SYMBIAN32__

EXPORT_C void** _oil_function_class_ptr_conv8x8_s16_f64 ()	{

	oil_function_class_ptr_conv8x8_s16_f64 = __oil_function_class_conv8x8_s16_f64();

	return &oil_function_class_ptr_conv8x8_s16_f64->func;

	}

#endif

#ifdef	__SYMBIAN32__

EXPORT_C void** _oil_function_class_ptr_conv8x8_f64_s16 ()	{

	oil_function_class_ptr_conv8x8_f64_s16 = __oil_function_class_conv8x8_f64_s16();

	return &oil_function_class_ptr_conv8x8_f64_s16->func;

	}

#endif

#ifdef	__SYMBIAN32__

EXPORT_C void** _oil_function_class_ptr_clipconv8x8_u8_s16 ()	{

	oil_function_class_ptr_clipconv8x8_u8_s16 = __oil_function_class_clipconv8x8_u8_s16();

	return &oil_function_class_ptr_clipconv8x8_u8_s16->func;

	}

#endif