f4a8594492
These functions should never change their input, and there's no reason not to declare that. This allows them to be passed static const data. Change-Id: Ia49fe4b01e80e9afcb24b4844817694d4da5995c
250 lines
6.9 KiB
C
250 lines
6.9 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <stdlib.h>
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unsigned int vp8_sad16x16_c(
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const unsigned char *src_ptr,
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int src_stride,
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const unsigned char *ref_ptr,
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int ref_stride,
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int max_sad)
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{
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int r, c;
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unsigned int sad = 0;
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for (r = 0; r < 16; r++)
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{
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for (c = 0; c < 16; c++)
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{
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sad += abs(src_ptr[c] - ref_ptr[c]);
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}
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src_ptr += src_stride;
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ref_ptr += ref_stride;
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}
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return sad;
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}
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static __inline
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unsigned int sad_mx_n_c(
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const unsigned char *src_ptr,
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int src_stride,
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const unsigned char *ref_ptr,
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int ref_stride,
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int m,
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int n)
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{
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int r, c;
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unsigned int sad = 0;
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for (r = 0; r < n; r++)
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{
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for (c = 0; c < m; c++)
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{
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sad += abs(src_ptr[c] - ref_ptr[c]);
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}
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src_ptr += src_stride;
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ref_ptr += ref_stride;
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}
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return sad;
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}
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unsigned int vp8_sad8x8_c(
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const unsigned char *src_ptr,
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int src_stride,
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const unsigned char *ref_ptr,
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int ref_stride,
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int max_sad)
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{
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return sad_mx_n_c(src_ptr, src_stride, ref_ptr, ref_stride, 8, 8);
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}
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unsigned int vp8_sad16x8_c(
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const unsigned char *src_ptr,
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int src_stride,
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const unsigned char *ref_ptr,
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int ref_stride,
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int max_sad)
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{
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return sad_mx_n_c(src_ptr, src_stride, ref_ptr, ref_stride, 16, 8);
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}
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unsigned int vp8_sad8x16_c(
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const unsigned char *src_ptr,
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int src_stride,
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const unsigned char *ref_ptr,
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int ref_stride,
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int max_sad)
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{
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return sad_mx_n_c(src_ptr, src_stride, ref_ptr, ref_stride, 8, 16);
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}
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unsigned int vp8_sad4x4_c(
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const unsigned char *src_ptr,
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int src_stride,
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const unsigned char *ref_ptr,
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int ref_stride,
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int max_sad)
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{
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return sad_mx_n_c(src_ptr, src_stride, ref_ptr, ref_stride, 4, 4);
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}
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void vp8_sad16x16x3_c(
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const unsigned char *src_ptr,
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int src_stride,
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const unsigned char *ref_ptr,
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int ref_stride,
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unsigned int *sad_array
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)
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{
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sad_array[0] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr , ref_stride, 0x7fffffff);
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sad_array[1] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, 0x7fffffff);
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sad_array[2] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, 0x7fffffff);
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}
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void vp8_sad16x8x3_c(
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const unsigned char *src_ptr,
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int src_stride,
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const unsigned char *ref_ptr,
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int ref_stride,
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unsigned int *sad_array
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)
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{
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sad_array[0] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr , ref_stride, 0x7fffffff);
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sad_array[1] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, 0x7fffffff);
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sad_array[2] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, 0x7fffffff);
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}
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void vp8_sad8x8x3_c(
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const unsigned char *src_ptr,
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int src_stride,
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const unsigned char *ref_ptr,
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int ref_stride,
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unsigned int *sad_array
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)
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{
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sad_array[0] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr , ref_stride, 0x7fffffff);
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sad_array[1] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, 0x7fffffff);
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sad_array[2] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, 0x7fffffff);
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}
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void vp8_sad8x16x3_c(
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const unsigned char *src_ptr,
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int src_stride,
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const unsigned char *ref_ptr,
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int ref_stride,
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unsigned int *sad_array
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)
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{
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sad_array[0] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr , ref_stride, 0x7fffffff);
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sad_array[1] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, 0x7fffffff);
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sad_array[2] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, 0x7fffffff);
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}
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void vp8_sad4x4x3_c(
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const unsigned char *src_ptr,
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int src_stride,
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const unsigned char *ref_ptr,
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int ref_stride,
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unsigned int *sad_array
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)
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{
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sad_array[0] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr , ref_stride, 0x7fffffff);
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sad_array[1] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, 0x7fffffff);
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sad_array[2] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, 0x7fffffff);
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}
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void vp8_sad16x16x4d_c(
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const unsigned char *src_ptr,
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int src_stride,
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unsigned char *ref_ptr[],
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int ref_stride,
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unsigned int *sad_array
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)
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{
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sad_array[0] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr[0], ref_stride, 0x7fffffff);
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sad_array[1] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr[1], ref_stride, 0x7fffffff);
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sad_array[2] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr[2], ref_stride, 0x7fffffff);
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sad_array[3] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr[3], ref_stride, 0x7fffffff);
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}
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void vp8_sad16x8x4d_c(
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const unsigned char *src_ptr,
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int src_stride,
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unsigned char *ref_ptr[],
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int ref_stride,
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unsigned int *sad_array
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)
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{
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sad_array[0] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr[0], ref_stride, 0x7fffffff);
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sad_array[1] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr[1], ref_stride, 0x7fffffff);
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sad_array[2] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr[2], ref_stride, 0x7fffffff);
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sad_array[3] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr[3], ref_stride, 0x7fffffff);
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}
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void vp8_sad8x8x4d_c(
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const unsigned char *src_ptr,
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int src_stride,
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unsigned char *ref_ptr[],
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int ref_stride,
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unsigned int *sad_array
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)
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{
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sad_array[0] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr[0], ref_stride, 0x7fffffff);
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sad_array[1] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr[1], ref_stride, 0x7fffffff);
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sad_array[2] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr[2], ref_stride, 0x7fffffff);
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sad_array[3] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr[3], ref_stride, 0x7fffffff);
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}
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void vp8_sad8x16x4d_c(
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const unsigned char *src_ptr,
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int src_stride,
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unsigned char *ref_ptr[],
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int ref_stride,
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unsigned int *sad_array
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)
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{
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sad_array[0] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr[0], ref_stride, 0x7fffffff);
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sad_array[1] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr[1], ref_stride, 0x7fffffff);
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sad_array[2] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr[2], ref_stride, 0x7fffffff);
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sad_array[3] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr[3], ref_stride, 0x7fffffff);
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}
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void vp8_sad4x4x4d_c(
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const unsigned char *src_ptr,
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int src_stride,
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unsigned char *ref_ptr[],
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int ref_stride,
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unsigned int *sad_array
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)
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{
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sad_array[0] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr[0], ref_stride, 0x7fffffff);
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sad_array[1] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr[1], ref_stride, 0x7fffffff);
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sad_array[2] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr[2], ref_stride, 0x7fffffff);
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sad_array[3] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr[3], ref_stride, 0x7fffffff);
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}
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