307 lines
9.5 KiB
C
307 lines
9.5 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 "./vpx_config.h"
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#include "./vpx_dsp_rtcd.h"
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#include "vpx_ports/mem.h"
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#include "vpx/vpx_integer.h"
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unsigned int vpx_get4x4sse_cs_c(const unsigned char *a, int a_stride,
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const unsigned char *b, int b_stride) {
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int distortion = 0;
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int r, c;
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for (r = 0; r < 4; r++) {
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for (c = 0; c < 4; c++) {
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int diff = a[c] - b[c];
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distortion += diff * diff;
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}
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a += a_stride;
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b += b_stride;
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}
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return distortion;
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}
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unsigned int vpx_get_mb_ss_c(const int16_t *a) {
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unsigned int i, sum = 0;
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for (i = 0; i < 256; ++i) {
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sum += a[i] * a[i];
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}
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return sum;
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}
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static void variance(const uint8_t *a, int a_stride,
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const uint8_t *b, int b_stride,
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int w, int h, unsigned int *sse, int *sum) {
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int i, j;
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*sum = 0;
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*sse = 0;
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for (i = 0; i < h; i++) {
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for (j = 0; j < w; j++) {
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const int diff = a[j] - b[j];
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*sum += diff;
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*sse += diff * diff;
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}
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a += a_stride;
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b += b_stride;
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}
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}
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#define VAR(W, H) \
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unsigned int vpx_variance##W##x##H##_c(const uint8_t *a, int a_stride, \
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const uint8_t *b, int b_stride, \
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unsigned int *sse) { \
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int sum; \
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variance(a, a_stride, b, b_stride, W, H, sse, &sum); \
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return *sse - (((int64_t)sum * sum) / (W * H)); \
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}
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/* Identical to the variance call except it takes an additional parameter, sum,
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* and returns that value using pass-by-reference instead of returning
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* sse - sum^2 / w*h
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*/
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#define GET_VAR(W, H) \
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void vpx_get##W##x##H##var_c(const uint8_t *a, int a_stride, \
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const uint8_t *b, int b_stride, \
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unsigned int *sse, int *sum) { \
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variance(a, a_stride, b, b_stride, W, H, sse, sum); \
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}
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/* Identical to the variance call except it does not calculate the
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* sse - sum^2 / w*h and returns sse in addtion to modifying the passed in
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* variable.
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*/
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#define MSE(W, H) \
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unsigned int vpx_mse##W##x##H##_c(const uint8_t *a, int a_stride, \
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const uint8_t *b, int b_stride, \
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unsigned int *sse) { \
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int sum; \
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variance(a, a_stride, b, b_stride, W, H, sse, &sum); \
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return *sse; \
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}
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VAR(64, 64)
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VAR(64, 32)
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VAR(32, 64)
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VAR(32, 32)
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VAR(32, 16)
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VAR(16, 32)
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VAR(16, 16)
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VAR(16, 8)
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VAR(8, 16)
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VAR(8, 8)
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VAR(8, 4)
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VAR(4, 8)
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VAR(4, 4)
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GET_VAR(16, 16)
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GET_VAR(8, 8)
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MSE(16, 16)
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MSE(16, 8)
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MSE(8, 16)
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MSE(8, 8)
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void vpx_comp_avg_pred_c(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 void highbd_variance64(const uint8_t *a8, int a_stride,
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const uint8_t *b8, int b_stride,
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int w, int h, uint64_t *sse, uint64_t *sum) {
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int i, j;
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uint16_t *a = CONVERT_TO_SHORTPTR(a8);
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uint16_t *b = CONVERT_TO_SHORTPTR(b8);
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*sum = 0;
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*sse = 0;
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for (i = 0; i < h; i++) {
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for (j = 0; j < w; j++) {
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const int diff = a[j] - b[j];
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*sum += diff;
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*sse += diff * diff;
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}
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a += a_stride;
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b += b_stride;
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}
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}
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static void highbd_8_variance(const uint8_t *a8, int a_stride,
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const uint8_t *b8, int b_stride,
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int w, int h, unsigned int *sse, int *sum) {
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uint64_t sse_long = 0;
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uint64_t sum_long = 0;
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highbd_variance64(a8, a_stride, b8, b_stride, w, h, &sse_long, &sum_long);
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*sse = (unsigned int)sse_long;
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*sum = (int)sum_long;
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}
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static void highbd_10_variance(const uint8_t *a8, int a_stride,
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const uint8_t *b8, int b_stride,
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int w, int h, unsigned int *sse, int *sum) {
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uint64_t sse_long = 0;
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uint64_t sum_long = 0;
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highbd_variance64(a8, a_stride, b8, b_stride, w, h, &sse_long, &sum_long);
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*sse = (unsigned int)ROUND_POWER_OF_TWO(sse_long, 4);
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*sum = (int)ROUND_POWER_OF_TWO(sum_long, 2);
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}
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static void highbd_12_variance(const uint8_t *a8, int a_stride,
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const uint8_t *b8, int b_stride,
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int w, int h, unsigned int *sse, int *sum) {
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uint64_t sse_long = 0;
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uint64_t sum_long = 0;
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highbd_variance64(a8, a_stride, b8, b_stride, w, h, &sse_long, &sum_long);
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*sse = (unsigned int)ROUND_POWER_OF_TWO(sse_long, 8);
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*sum = (int)ROUND_POWER_OF_TWO(sum_long, 4);
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}
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#define HIGHBD_VAR(W, H) \
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unsigned int vpx_highbd_8_variance##W##x##H##_c(const uint8_t *a, \
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int a_stride, \
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const uint8_t *b, \
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int b_stride, \
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unsigned int *sse) { \
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int sum; \
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highbd_8_variance(a, a_stride, b, b_stride, W, H, sse, &sum); \
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return *sse - (((int64_t)sum * sum) / (W * H)); \
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} \
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\
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unsigned int vpx_highbd_10_variance##W##x##H##_c(const uint8_t *a, \
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int a_stride, \
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const uint8_t *b, \
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int b_stride, \
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unsigned int *sse) { \
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int sum; \
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highbd_10_variance(a, a_stride, b, b_stride, W, H, sse, &sum); \
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return *sse - (((int64_t)sum * sum) / (W * H)); \
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} \
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\
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unsigned int vpx_highbd_12_variance##W##x##H##_c(const uint8_t *a, \
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int a_stride, \
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const uint8_t *b, \
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int b_stride, \
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unsigned int *sse) { \
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int sum; \
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highbd_12_variance(a, a_stride, b, b_stride, W, H, sse, &sum); \
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return *sse - (((int64_t)sum * sum) / (W * H)); \
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}
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#define HIGHBD_GET_VAR(S) \
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void vpx_highbd_8_get##S##x##S##var_c(const uint8_t *src, int src_stride, \
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const uint8_t *ref, int ref_stride, \
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unsigned int *sse, int *sum) { \
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highbd_8_variance(src, src_stride, ref, ref_stride, S, S, sse, sum); \
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} \
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\
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void vpx_highbd_10_get##S##x##S##var_c(const uint8_t *src, int src_stride, \
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const uint8_t *ref, int ref_stride, \
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unsigned int *sse, int *sum) { \
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highbd_10_variance(src, src_stride, ref, ref_stride, S, S, sse, sum); \
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} \
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\
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void vpx_highbd_12_get##S##x##S##var_c(const uint8_t *src, int src_stride, \
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const uint8_t *ref, int ref_stride, \
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unsigned int *sse, int *sum) { \
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highbd_12_variance(src, src_stride, ref, ref_stride, S, S, sse, sum); \
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}
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#define HIGHBD_MSE(W, H) \
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unsigned int vpx_highbd_8_mse##W##x##H##_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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unsigned int *sse) { \
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int sum; \
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highbd_8_variance(src, src_stride, ref, ref_stride, W, H, sse, &sum); \
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return *sse; \
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} \
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\
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unsigned int vpx_highbd_10_mse##W##x##H##_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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unsigned int *sse) { \
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int sum; \
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highbd_10_variance(src, src_stride, ref, ref_stride, W, H, sse, &sum); \
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return *sse; \
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} \
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\
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unsigned int vpx_highbd_12_mse##W##x##H##_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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unsigned int *sse) { \
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int sum; \
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highbd_12_variance(src, src_stride, ref, ref_stride, W, H, sse, &sum); \
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return *sse; \
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}
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HIGHBD_GET_VAR(8)
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HIGHBD_GET_VAR(16)
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HIGHBD_MSE(16, 16)
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HIGHBD_MSE(16, 8)
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HIGHBD_MSE(8, 16)
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HIGHBD_MSE(8, 8)
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HIGHBD_VAR(64, 64)
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HIGHBD_VAR(64, 32)
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HIGHBD_VAR(32, 64)
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HIGHBD_VAR(32, 32)
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HIGHBD_VAR(32, 16)
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HIGHBD_VAR(16, 32)
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HIGHBD_VAR(16, 16)
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HIGHBD_VAR(16, 8)
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HIGHBD_VAR(8, 16)
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HIGHBD_VAR(8, 8)
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HIGHBD_VAR(8, 4)
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HIGHBD_VAR(4, 8)
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HIGHBD_VAR(4, 4)
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void vpx_highbd_comp_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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