319 строки
8.3 KiB
C
319 строки
8.3 KiB
C
/*
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* Copyright (c) 2015 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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#include "./vpx_config.h"
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#include "./vpx_dsp_rtcd.h"
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#include "vpx/vpx_integer.h"
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#include "vpx_ports/mem.h"
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/* Sum the difference between every corresponding element of the buffers. */
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static INLINE unsigned int sad(const uint8_t *a, int a_stride,
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const uint8_t *b, int b_stride,
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int width, int height) {
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int y, x;
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unsigned int sad = 0;
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for (y = 0; y < height; y++) {
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for (x = 0; x < width; x++)
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sad += abs(a[x] - b[x]);
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a += a_stride;
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b += b_stride;
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}
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return sad;
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}
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// TODO(johannkoenig): this moved to vpx_dsp, should be able to clean this up.
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/* Remove dependency on vp9 variance function by duplicating vp9_comp_avg_pred.
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* The function averages every corresponding element of the buffers and stores
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* the value in a third buffer, comp_pred.
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* pred and comp_pred are assumed to have stride = width
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* In the usage below comp_pred is a local array.
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*/
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static INLINE void avg_pred(uint8_t *comp_pred, const uint8_t *pred, int width,
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int height, const uint8_t *ref, int ref_stride) {
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int i, j;
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for (i = 0; i < height; i++) {
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for (j = 0; j < width; j++) {
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const int tmp = pred[j] + ref[j];
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comp_pred[j] = ROUND_POWER_OF_TWO(tmp, 1);
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}
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comp_pred += width;
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pred += width;
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ref += ref_stride;
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}
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}
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#if CONFIG_VP9_HIGHBITDEPTH
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static INLINE void highbd_avg_pred(uint16_t *comp_pred, const uint8_t *pred8,
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int width, int height, const uint8_t *ref8,
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int ref_stride) {
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int i, j;
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uint16_t *pred = CONVERT_TO_SHORTPTR(pred8);
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uint16_t *ref = CONVERT_TO_SHORTPTR(ref8);
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for (i = 0; i < height; i++) {
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for (j = 0; j < width; j++) {
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const int tmp = pred[j] + ref[j];
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comp_pred[j] = ROUND_POWER_OF_TWO(tmp, 1);
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}
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comp_pred += width;
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pred += width;
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ref += ref_stride;
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}
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}
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#endif // CONFIG_VP9_HIGHBITDEPTH
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#define sadMxN(m, n) \
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unsigned int vpx_sad##m##x##n##_c(const uint8_t *src, int src_stride, \
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const uint8_t *ref, int ref_stride) { \
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return sad(src, src_stride, ref, ref_stride, m, n); \
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} \
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unsigned int vpx_sad##m##x##n##_avg_c(const uint8_t *src, int src_stride, \
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const uint8_t *ref, int ref_stride, \
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const uint8_t *second_pred) { \
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uint8_t comp_pred[m * n]; \
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avg_pred(comp_pred, second_pred, m, n, ref, ref_stride); \
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return sad(src, src_stride, comp_pred, m, m, n); \
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}
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// depending on call sites, pass **ref_array to avoid & in subsequent call and
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// de-dup with 4D below.
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#define sadMxNxK(m, n, k) \
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void vpx_sad##m##x##n##x##k##_c(const uint8_t *src, int src_stride, \
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const uint8_t *ref_array, int ref_stride, \
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uint32_t *sad_array) { \
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int i; \
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for (i = 0; i < k; ++i) \
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sad_array[i] = vpx_sad##m##x##n##_c(src, src_stride, &ref_array[i], ref_stride); \
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}
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// This appears to be equivalent to the above when k == 4 and refs is const
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#define sadMxNx4D(m, n) \
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void vpx_sad##m##x##n##x4d_c(const uint8_t *src, int src_stride, \
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const uint8_t *const ref_array[], int ref_stride, \
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uint32_t *sad_array) { \
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int i; \
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for (i = 0; i < 4; ++i) \
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sad_array[i] = vpx_sad##m##x##n##_c(src, src_stride, ref_array[i], ref_stride); \
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}
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// 64x64
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sadMxN(64, 64)
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sadMxNxK(64, 64, 3)
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sadMxNxK(64, 64, 8)
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sadMxNx4D(64, 64)
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// 64x32
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sadMxN(64, 32)
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sadMxNx4D(64, 32)
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// 32x64
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sadMxN(32, 64)
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sadMxNx4D(32, 64)
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// 32x32
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sadMxN(32, 32)
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sadMxNxK(32, 32, 3)
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sadMxNxK(32, 32, 8)
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sadMxNx4D(32, 32)
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// 32x16
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sadMxN(32, 16)
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sadMxNx4D(32, 16)
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// 16x32
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sadMxN(16, 32)
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sadMxNx4D(16, 32)
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// 16x16
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sadMxN(16, 16)
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sadMxNxK(16, 16, 3)
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sadMxNxK(16, 16, 8)
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sadMxNx4D(16, 16)
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// 16x8
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sadMxN(16, 8)
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sadMxNxK(16, 8, 3)
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sadMxNxK(16, 8, 8)
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sadMxNx4D(16, 8)
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// 8x16
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sadMxN(8, 16)
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sadMxNxK(8, 16, 3)
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sadMxNxK(8, 16, 8)
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sadMxNx4D(8, 16)
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// 8x8
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sadMxN(8, 8)
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sadMxNxK(8, 8, 3)
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sadMxNxK(8, 8, 8)
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sadMxNx4D(8, 8)
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// 8x4
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sadMxN(8, 4)
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sadMxNxK(8, 4, 8)
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sadMxNx4D(8, 4)
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// 4x8
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sadMxN(4, 8)
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sadMxNxK(4, 8, 8)
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sadMxNx4D(4, 8)
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// 4x4
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sadMxN(4, 4)
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sadMxNxK(4, 4, 3)
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sadMxNxK(4, 4, 8)
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sadMxNx4D(4, 4)
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#if CONFIG_VP9_HIGHBITDEPTH
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static INLINE unsigned int highbd_sad(const uint8_t *a8, int a_stride,
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const uint8_t *b8, int b_stride,
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int width, int height) {
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int y, x;
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unsigned int sad = 0;
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const uint16_t *a = CONVERT_TO_SHORTPTR(a8);
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const uint16_t *b = CONVERT_TO_SHORTPTR(b8);
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for (y = 0; y < height; y++) {
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for (x = 0; x < width; x++)
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sad += abs(a[x] - b[x]);
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a += a_stride;
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b += b_stride;
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}
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return sad;
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}
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static INLINE unsigned int highbd_sadb(const uint8_t *a8, int a_stride,
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const uint16_t *b, int b_stride,
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int width, int height) {
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int y, x;
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unsigned int sad = 0;
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const uint16_t *a = CONVERT_TO_SHORTPTR(a8);
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for (y = 0; y < height; y++) {
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for (x = 0; x < width; x++)
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sad += abs(a[x] - b[x]);
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a += a_stride;
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b += b_stride;
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}
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return sad;
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}
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#define highbd_sadMxN(m, n) \
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unsigned int vpx_highbd_sad##m##x##n##_c(const uint8_t *src, int src_stride, \
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const uint8_t *ref, int ref_stride) { \
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return highbd_sad(src, src_stride, ref, ref_stride, m, n); \
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} \
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unsigned int vpx_highbd_sad##m##x##n##_avg_c(const uint8_t *src, \
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int src_stride, \
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const uint8_t *ref, \
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int ref_stride, \
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const uint8_t *second_pred) { \
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uint16_t comp_pred[m * n]; \
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highbd_avg_pred(comp_pred, second_pred, m, n, ref, ref_stride); \
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return highbd_sadb(src, src_stride, comp_pred, m, m, n); \
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}
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#define highbd_sadMxNxK(m, n, k) \
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void vpx_highbd_sad##m##x##n##x##k##_c(const uint8_t *src, int src_stride, \
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const uint8_t *ref_array, int ref_stride, \
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uint32_t *sad_array) { \
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int i; \
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for (i = 0; i < k; ++i) { \
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sad_array[i] = vpx_highbd_sad##m##x##n##_c(src, src_stride, &ref_array[i], \
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ref_stride); \
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} \
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}
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#define highbd_sadMxNx4D(m, n) \
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void vpx_highbd_sad##m##x##n##x4d_c(const uint8_t *src, int src_stride, \
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const uint8_t *const ref_array[], \
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int ref_stride, uint32_t *sad_array) { \
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int i; \
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for (i = 0; i < 4; ++i) { \
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sad_array[i] = vpx_highbd_sad##m##x##n##_c(src, src_stride, ref_array[i], \
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ref_stride); \
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} \
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}
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// 64x64
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highbd_sadMxN(64, 64)
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highbd_sadMxNxK(64, 64, 3)
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highbd_sadMxNxK(64, 64, 8)
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highbd_sadMxNx4D(64, 64)
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// 64x32
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highbd_sadMxN(64, 32)
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highbd_sadMxNx4D(64, 32)
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// 32x64
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highbd_sadMxN(32, 64)
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highbd_sadMxNx4D(32, 64)
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// 32x32
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highbd_sadMxN(32, 32)
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highbd_sadMxNxK(32, 32, 3)
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highbd_sadMxNxK(32, 32, 8)
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highbd_sadMxNx4D(32, 32)
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// 32x16
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highbd_sadMxN(32, 16)
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highbd_sadMxNx4D(32, 16)
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// 16x32
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highbd_sadMxN(16, 32)
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highbd_sadMxNx4D(16, 32)
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// 16x16
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highbd_sadMxN(16, 16)
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highbd_sadMxNxK(16, 16, 3)
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highbd_sadMxNxK(16, 16, 8)
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highbd_sadMxNx4D(16, 16)
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// 16x8
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highbd_sadMxN(16, 8)
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highbd_sadMxNxK(16, 8, 3)
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highbd_sadMxNxK(16, 8, 8)
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highbd_sadMxNx4D(16, 8)
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// 8x16
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highbd_sadMxN(8, 16)
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highbd_sadMxNxK(8, 16, 3)
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highbd_sadMxNxK(8, 16, 8)
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highbd_sadMxNx4D(8, 16)
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// 8x8
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highbd_sadMxN(8, 8)
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highbd_sadMxNxK(8, 8, 3)
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highbd_sadMxNxK(8, 8, 8)
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highbd_sadMxNx4D(8, 8)
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// 8x4
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highbd_sadMxN(8, 4)
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highbd_sadMxNxK(8, 4, 8)
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highbd_sadMxNx4D(8, 4)
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// 4x8
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highbd_sadMxN(4, 8)
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highbd_sadMxNxK(4, 8, 8)
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highbd_sadMxNx4D(4, 8)
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// 4x4
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highbd_sadMxN(4, 4)
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highbd_sadMxNxK(4, 4, 3)
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highbd_sadMxNxK(4, 4, 8)
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highbd_sadMxNx4D(4, 4)
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#endif // CONFIG_VP9_HIGHBITDEPTH
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