/*
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */


#include <math.h>
#include "vp8/common/filter.h"
#include "vp8/common/subpixel.h"
#include "bilinearfilter_arm.h"

void vp8_filter_block2d_bil_armv6
(
    unsigned char *src_ptr,
    unsigned char *dst_ptr,
    unsigned int   src_pitch,
    unsigned int   dst_pitch,
    const short   *HFilter,
    const short   *VFilter,
    int            Width,
    int            Height
)
{
    unsigned short FData[36*16]; /* Temp data buffer used in filtering */

    /* First filter 1-D horizontally... */
    vp8_filter_block2d_bil_first_pass_armv6(src_ptr, FData, src_pitch, Height + 1, Width, HFilter);

    /* then 1-D vertically... */
    vp8_filter_block2d_bil_second_pass_armv6(FData, dst_ptr, dst_pitch, Height, Width, VFilter);
}


void vp8_bilinear_predict4x4_armv6
(
    unsigned char  *src_ptr,
    int   src_pixels_per_line,
    int  xoffset,
    int  yoffset,
    unsigned char *dst_ptr,
    int dst_pitch
)
{
    const short  *HFilter;
    const short  *VFilter;

    HFilter = vp8_bilinear_filters[xoffset];
    VFilter = vp8_bilinear_filters[yoffset];

    vp8_filter_block2d_bil_armv6(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 4, 4);
}

void vp8_bilinear_predict8x8_armv6
(
    unsigned char  *src_ptr,
    int  src_pixels_per_line,
    int  xoffset,
    int  yoffset,
    unsigned char *dst_ptr,
    int  dst_pitch
)
{
    const short  *HFilter;
    const short  *VFilter;

    HFilter = vp8_bilinear_filters[xoffset];
    VFilter = vp8_bilinear_filters[yoffset];

    vp8_filter_block2d_bil_armv6(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 8, 8);
}

void vp8_bilinear_predict8x4_armv6
(
    unsigned char  *src_ptr,
    int  src_pixels_per_line,
    int  xoffset,
    int  yoffset,
    unsigned char *dst_ptr,
    int  dst_pitch
)
{
    const short  *HFilter;
    const short  *VFilter;

    HFilter = vp8_bilinear_filters[xoffset];
    VFilter = vp8_bilinear_filters[yoffset];

    vp8_filter_block2d_bil_armv6(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 8, 4);
}

void vp8_bilinear_predict16x16_armv6
(
    unsigned char  *src_ptr,
    int  src_pixels_per_line,
    int  xoffset,
    int  yoffset,
    unsigned char *dst_ptr,
    int  dst_pitch
)
{
    const short  *HFilter;
    const short  *VFilter;

    HFilter = vp8_bilinear_filters[xoffset];
    VFilter = vp8_bilinear_filters[yoffset];

    vp8_filter_block2d_bil_armv6(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 16, 16);
}
