The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/media/libvpx/vp8/common/idct_blk.c	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,90 @@
     1.4 +/*
     1.5 + *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
     1.6 + *
     1.7 + *  Use of this source code is governed by a BSD-style license
     1.8 + *  that can be found in the LICENSE file in the root of the source
     1.9 + *  tree. An additional intellectual property rights grant can be found
    1.10 + *  in the file PATENTS.  All contributing project authors may
    1.11 + *  be found in the AUTHORS file in the root of the source tree.
    1.12 + */
    1.13 +
    1.14 +#include "vpx_config.h"
    1.15 +#include "vp8_rtcd.h"
    1.16 +#include "vpx_mem/vpx_mem.h"
    1.17 +
    1.18 +void vp8_dequant_idct_add_c(short *input, short *dq,
    1.19 +                            unsigned char *dest, int stride);
    1.20 +void vp8_dc_only_idct_add_c(short input_dc, unsigned char * pred,
    1.21 +                            int pred_stride, unsigned char *dst_ptr,
    1.22 +                            int dst_stride);
    1.23 +
    1.24 +void vp8_dequant_idct_add_y_block_c
    1.25 +            (short *q, short *dq,
    1.26 +             unsigned char *dst, int stride, char *eobs)
    1.27 +{
    1.28 +    int i, j;
    1.29 +
    1.30 +    for (i = 0; i < 4; i++)
    1.31 +    {
    1.32 +        for (j = 0; j < 4; j++)
    1.33 +        {
    1.34 +            if (*eobs++ > 1)
    1.35 +                vp8_dequant_idct_add_c (q, dq, dst, stride);
    1.36 +            else
    1.37 +            {
    1.38 +                vp8_dc_only_idct_add_c (q[0]*dq[0], dst, stride, dst, stride);
    1.39 +                vpx_memset(q, 0, 2 * sizeof(q[0]));
    1.40 +            }
    1.41 +
    1.42 +            q   += 16;
    1.43 +            dst += 4;
    1.44 +        }
    1.45 +
    1.46 +        dst += 4*stride - 16;
    1.47 +    }
    1.48 +}
    1.49 +
    1.50 +void vp8_dequant_idct_add_uv_block_c
    1.51 +            (short *q, short *dq,
    1.52 +             unsigned char *dstu, unsigned char *dstv, int stride, char *eobs)
    1.53 +{
    1.54 +    int i, j;
    1.55 +
    1.56 +    for (i = 0; i < 2; i++)
    1.57 +    {
    1.58 +        for (j = 0; j < 2; j++)
    1.59 +        {
    1.60 +            if (*eobs++ > 1)
    1.61 +                vp8_dequant_idct_add_c (q, dq, dstu, stride);
    1.62 +            else
    1.63 +            {
    1.64 +                vp8_dc_only_idct_add_c (q[0]*dq[0], dstu, stride, dstu, stride);
    1.65 +                vpx_memset(q, 0, 2 * sizeof(q[0]));
    1.66 +            }
    1.67 +
    1.68 +            q    += 16;
    1.69 +            dstu += 4;
    1.70 +        }
    1.71 +
    1.72 +        dstu += 4*stride - 8;
    1.73 +    }
    1.74 +
    1.75 +    for (i = 0; i < 2; i++)
    1.76 +    {
    1.77 +        for (j = 0; j < 2; j++)
    1.78 +        {
    1.79 +            if (*eobs++ > 1)
    1.80 +                vp8_dequant_idct_add_c (q, dq, dstv, stride);
    1.81 +            else
    1.82 +            {
    1.83 +                vp8_dc_only_idct_add_c (q[0]*dq[0], dstv, stride, dstv, stride);
    1.84 +                vpx_memset(q, 0, 2 * sizeof(q[0]));
    1.85 +            }
    1.86 +
    1.87 +            q    += 16;
    1.88 +            dstv += 4;
    1.89 +        }
    1.90 +
    1.91 +        dstv += 4*stride - 8;
    1.92 +    }
    1.93 +}