d393885af1
This function only exists as a shortcut to subpixel variance with predefined offsets. xoffset = 4 for horizontal, yoffset = 4 for vertical and both for "hv" Removing this allows the existing optimizations for the variance functions to be called. Instead of having only sse2 optimizations, this gives sse2, ssse3, msa and neon. BUG=webm:1273 Change-Id: Ieb407b423b91b87d33c4263c6a1ad5e673b0efd6
558 lines
26 KiB
C
558 lines
26 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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#include "vpx_dsp/variance.h"
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static const uint8_t bilinear_filters[8][2] = {
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{ 128, 0 }, { 112, 16 }, { 96, 32 }, { 80, 48 },
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{ 64, 64 }, { 48, 80 }, { 32, 96 }, { 16, 112 },
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};
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uint32_t vpx_get4x4sse_cs_c(const uint8_t *a, int a_stride, const uint8_t *b,
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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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uint32_t 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, const uint8_t *b,
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int b_stride, int w, int h, uint32_t *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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// Applies a 1-D 2-tap bilinear filter to the source block in either horizontal
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// or vertical direction to produce the filtered output block. Used to implement
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// the first-pass of 2-D separable filter.
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//
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// Produces int16_t output to retain precision for the next pass. Two filter
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// taps should sum to FILTER_WEIGHT. pixel_step defines whether the filter is
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// applied horizontally (pixel_step = 1) or vertically (pixel_step = stride).
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// It defines the offset required to move from one input to the next.
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static void var_filter_block2d_bil_first_pass(const uint8_t *a, uint16_t *b,
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unsigned int src_pixels_per_line,
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int pixel_step,
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unsigned int output_height,
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unsigned int output_width,
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const uint8_t *filter) {
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unsigned int i, j;
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for (i = 0; i < output_height; ++i) {
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for (j = 0; j < output_width; ++j) {
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b[j] = ROUND_POWER_OF_TWO(
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(int)a[0] * filter[0] + (int)a[pixel_step] * filter[1], FILTER_BITS);
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++a;
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}
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a += src_pixels_per_line - output_width;
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b += output_width;
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}
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}
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// Applies a 1-D 2-tap bilinear filter to the source block in either horizontal
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// or vertical direction to produce the filtered output block. Used to implement
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// the second-pass of 2-D separable filter.
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//
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// Requires 16-bit input as produced by filter_block2d_bil_first_pass. Two
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// filter taps should sum to FILTER_WEIGHT. pixel_step defines whether the
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// filter is applied horizontally (pixel_step = 1) or vertically
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// (pixel_step = stride). It defines the offset required to move from one input
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// to the next. Output is 8-bit.
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static void var_filter_block2d_bil_second_pass(const uint16_t *a, uint8_t *b,
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unsigned int src_pixels_per_line,
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unsigned int pixel_step,
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unsigned int output_height,
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unsigned int output_width,
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const uint8_t *filter) {
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unsigned int i, j;
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for (i = 0; i < output_height; ++i) {
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for (j = 0; j < output_width; ++j) {
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b[j] = ROUND_POWER_OF_TWO(
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(int)a[0] * filter[0] + (int)a[pixel_step] * filter[1], FILTER_BITS);
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++a;
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}
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a += src_pixels_per_line - output_width;
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b += output_width;
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}
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}
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#define VAR(W, H) \
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uint32_t 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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uint32_t *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 - (uint32_t)(((int64_t)sum * sum) / (W * H)); \
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}
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#define SUBPIX_VAR(W, H) \
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uint32_t vpx_sub_pixel_variance##W##x##H##_c( \
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const uint8_t *a, int a_stride, int xoffset, int yoffset, \
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const uint8_t *b, int b_stride, uint32_t *sse) { \
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uint16_t fdata3[(H + 1) * W]; \
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uint8_t temp2[H * W]; \
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\
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var_filter_block2d_bil_first_pass(a, fdata3, a_stride, 1, H + 1, W, \
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bilinear_filters[xoffset]); \
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var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
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bilinear_filters[yoffset]); \
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\
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return vpx_variance##W##x##H##_c(temp2, W, b, b_stride, sse); \
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}
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#define SUBPIX_AVG_VAR(W, H) \
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uint32_t vpx_sub_pixel_avg_variance##W##x##H##_c( \
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const uint8_t *a, int a_stride, int xoffset, int yoffset, \
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const uint8_t *b, int b_stride, uint32_t *sse, \
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const uint8_t *second_pred) { \
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uint16_t fdata3[(H + 1) * W]; \
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uint8_t temp2[H * W]; \
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DECLARE_ALIGNED(16, uint8_t, temp3[H * W]); \
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\
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var_filter_block2d_bil_first_pass(a, fdata3, a_stride, 1, H + 1, W, \
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bilinear_filters[xoffset]); \
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var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
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bilinear_filters[yoffset]); \
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\
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vpx_comp_avg_pred(temp3, second_pred, W, H, temp2, W); \
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\
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return vpx_variance##W##x##H##_c(temp3, W, b, b_stride, sse); \
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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, uint32_t *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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}
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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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uint32_t 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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uint32_t *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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/* All three forms of the variance are available in the same sizes. */
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#define VARIANCES(W, H) \
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VAR(W, H) \
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SUBPIX_VAR(W, H) \
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SUBPIX_AVG_VAR(W, H)
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VARIANCES(64, 64)
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VARIANCES(64, 32)
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VARIANCES(32, 64)
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VARIANCES(32, 32)
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VARIANCES(32, 16)
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VARIANCES(16, 32)
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VARIANCES(16, 16)
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VARIANCES(16, 8)
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VARIANCES(8, 16)
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VARIANCES(8, 8)
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VARIANCES(8, 4)
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VARIANCES(4, 8)
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VARIANCES(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, int w, int h,
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uint64_t *sse, int64_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, int w, int h,
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uint32_t *sse, int *sum) {
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uint64_t sse_long = 0;
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int64_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 = (uint32_t)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, int w, int h,
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uint32_t *sse, int *sum) {
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uint64_t sse_long = 0;
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int64_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 = (uint32_t)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, int w, int h,
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uint32_t *sse, int *sum) {
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uint64_t sse_long = 0;
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int64_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 = (uint32_t)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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uint32_t vpx_highbd_8_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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uint32_t *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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uint32_t vpx_highbd_10_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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uint32_t *sse) { \
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int sum; \
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int64_t var; \
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highbd_10_variance(a, a_stride, b, b_stride, W, H, sse, &sum); \
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var = (int64_t)(*sse) - (((int64_t)sum * sum) / (W * H)); \
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return (var >= 0) ? (uint32_t)var : 0; \
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} \
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\
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uint32_t vpx_highbd_12_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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uint32_t *sse) { \
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int sum; \
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int64_t var; \
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highbd_12_variance(a, a_stride, b, b_stride, W, H, sse, &sum); \
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var = (int64_t)(*sse) - (((int64_t)sum * sum) / (W * H)); \
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return (var >= 0) ? (uint32_t)var : 0; \
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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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uint32_t *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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uint32_t *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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uint32_t *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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uint32_t vpx_highbd_8_mse##W##x##H##_c(const uint8_t *src, int src_stride, \
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const uint8_t *ref, int ref_stride, \
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uint32_t *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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uint32_t vpx_highbd_10_mse##W##x##H##_c(const uint8_t *src, int src_stride, \
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const uint8_t *ref, int ref_stride, \
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uint32_t *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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uint32_t vpx_highbd_12_mse##W##x##H##_c(const uint8_t *src, int src_stride, \
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const uint8_t *ref, int ref_stride, \
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uint32_t *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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static void highbd_var_filter_block2d_bil_first_pass(
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const uint8_t *src_ptr8, uint16_t *output_ptr,
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unsigned int src_pixels_per_line, int pixel_step,
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unsigned int output_height, unsigned int output_width,
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const uint8_t *filter) {
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unsigned int i, j;
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uint16_t *src_ptr = CONVERT_TO_SHORTPTR(src_ptr8);
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for (i = 0; i < output_height; ++i) {
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for (j = 0; j < output_width; ++j) {
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output_ptr[j] = ROUND_POWER_OF_TWO(
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(int)src_ptr[0] * filter[0] + (int)src_ptr[pixel_step] * filter[1],
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FILTER_BITS);
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++src_ptr;
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}
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// Next row...
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src_ptr += src_pixels_per_line - output_width;
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output_ptr += output_width;
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}
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}
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static void highbd_var_filter_block2d_bil_second_pass(
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const uint16_t *src_ptr, uint16_t *output_ptr,
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unsigned int src_pixels_per_line, unsigned int pixel_step,
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unsigned int output_height, unsigned int output_width,
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const uint8_t *filter) {
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unsigned int i, j;
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for (i = 0; i < output_height; ++i) {
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for (j = 0; j < output_width; ++j) {
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output_ptr[j] = ROUND_POWER_OF_TWO(
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(int)src_ptr[0] * filter[0] + (int)src_ptr[pixel_step] * filter[1],
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FILTER_BITS);
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++src_ptr;
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}
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src_ptr += src_pixels_per_line - output_width;
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output_ptr += output_width;
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}
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}
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#define HIGHBD_SUBPIX_VAR(W, H) \
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uint32_t vpx_highbd_8_sub_pixel_variance##W##x##H##_c( \
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const uint8_t *src, int src_stride, int xoffset, int yoffset, \
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const uint8_t *dst, int dst_stride, uint32_t *sse) { \
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uint16_t fdata3[(H + 1) * W]; \
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uint16_t temp2[H * W]; \
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\
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highbd_var_filter_block2d_bil_first_pass( \
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src, fdata3, src_stride, 1, H + 1, W, bilinear_filters[xoffset]); \
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highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
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bilinear_filters[yoffset]); \
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\
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return vpx_highbd_8_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp2), W, \
|
|
dst, dst_stride, sse); \
|
|
} \
|
|
\
|
|
uint32_t vpx_highbd_10_sub_pixel_variance##W##x##H##_c( \
|
|
const uint8_t *src, int src_stride, int xoffset, int yoffset, \
|
|
const uint8_t *dst, int dst_stride, uint32_t *sse) { \
|
|
uint16_t fdata3[(H + 1) * W]; \
|
|
uint16_t temp2[H * W]; \
|
|
\
|
|
highbd_var_filter_block2d_bil_first_pass( \
|
|
src, fdata3, src_stride, 1, H + 1, W, bilinear_filters[xoffset]); \
|
|
highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
|
|
bilinear_filters[yoffset]); \
|
|
\
|
|
return vpx_highbd_10_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp2), W, \
|
|
dst, dst_stride, sse); \
|
|
} \
|
|
\
|
|
uint32_t vpx_highbd_12_sub_pixel_variance##W##x##H##_c( \
|
|
const uint8_t *src, int src_stride, int xoffset, int yoffset, \
|
|
const uint8_t *dst, int dst_stride, uint32_t *sse) { \
|
|
uint16_t fdata3[(H + 1) * W]; \
|
|
uint16_t temp2[H * W]; \
|
|
\
|
|
highbd_var_filter_block2d_bil_first_pass( \
|
|
src, fdata3, src_stride, 1, H + 1, W, bilinear_filters[xoffset]); \
|
|
highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
|
|
bilinear_filters[yoffset]); \
|
|
\
|
|
return vpx_highbd_12_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp2), W, \
|
|
dst, dst_stride, sse); \
|
|
}
|
|
|
|
#define HIGHBD_SUBPIX_AVG_VAR(W, H) \
|
|
uint32_t vpx_highbd_8_sub_pixel_avg_variance##W##x##H##_c( \
|
|
const uint8_t *src, int src_stride, int xoffset, int yoffset, \
|
|
const uint8_t *dst, int dst_stride, uint32_t *sse, \
|
|
const uint8_t *second_pred) { \
|
|
uint16_t fdata3[(H + 1) * W]; \
|
|
uint16_t temp2[H * W]; \
|
|
DECLARE_ALIGNED(16, uint16_t, temp3[H * W]); \
|
|
\
|
|
highbd_var_filter_block2d_bil_first_pass( \
|
|
src, fdata3, src_stride, 1, H + 1, W, bilinear_filters[xoffset]); \
|
|
highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
|
|
bilinear_filters[yoffset]); \
|
|
\
|
|
vpx_highbd_comp_avg_pred(temp3, second_pred, W, H, \
|
|
CONVERT_TO_BYTEPTR(temp2), W); \
|
|
\
|
|
return vpx_highbd_8_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp3), W, \
|
|
dst, dst_stride, sse); \
|
|
} \
|
|
\
|
|
uint32_t vpx_highbd_10_sub_pixel_avg_variance##W##x##H##_c( \
|
|
const uint8_t *src, int src_stride, int xoffset, int yoffset, \
|
|
const uint8_t *dst, int dst_stride, uint32_t *sse, \
|
|
const uint8_t *second_pred) { \
|
|
uint16_t fdata3[(H + 1) * W]; \
|
|
uint16_t temp2[H * W]; \
|
|
DECLARE_ALIGNED(16, uint16_t, temp3[H * W]); \
|
|
\
|
|
highbd_var_filter_block2d_bil_first_pass( \
|
|
src, fdata3, src_stride, 1, H + 1, W, bilinear_filters[xoffset]); \
|
|
highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
|
|
bilinear_filters[yoffset]); \
|
|
\
|
|
vpx_highbd_comp_avg_pred(temp3, second_pred, W, H, \
|
|
CONVERT_TO_BYTEPTR(temp2), W); \
|
|
\
|
|
return vpx_highbd_10_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp3), W, \
|
|
dst, dst_stride, sse); \
|
|
} \
|
|
\
|
|
uint32_t vpx_highbd_12_sub_pixel_avg_variance##W##x##H##_c( \
|
|
const uint8_t *src, int src_stride, int xoffset, int yoffset, \
|
|
const uint8_t *dst, int dst_stride, uint32_t *sse, \
|
|
const uint8_t *second_pred) { \
|
|
uint16_t fdata3[(H + 1) * W]; \
|
|
uint16_t temp2[H * W]; \
|
|
DECLARE_ALIGNED(16, uint16_t, temp3[H * W]); \
|
|
\
|
|
highbd_var_filter_block2d_bil_first_pass( \
|
|
src, fdata3, src_stride, 1, H + 1, W, bilinear_filters[xoffset]); \
|
|
highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
|
|
bilinear_filters[yoffset]); \
|
|
\
|
|
vpx_highbd_comp_avg_pred(temp3, second_pred, W, H, \
|
|
CONVERT_TO_BYTEPTR(temp2), W); \
|
|
\
|
|
return vpx_highbd_12_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp3), W, \
|
|
dst, dst_stride, sse); \
|
|
}
|
|
|
|
/* All three forms of the variance are available in the same sizes. */
|
|
#define HIGHBD_VARIANCES(W, H) \
|
|
HIGHBD_VAR(W, H) \
|
|
HIGHBD_SUBPIX_VAR(W, H) \
|
|
HIGHBD_SUBPIX_AVG_VAR(W, H)
|
|
|
|
HIGHBD_VARIANCES(64, 64)
|
|
HIGHBD_VARIANCES(64, 32)
|
|
HIGHBD_VARIANCES(32, 64)
|
|
HIGHBD_VARIANCES(32, 32)
|
|
HIGHBD_VARIANCES(32, 16)
|
|
HIGHBD_VARIANCES(16, 32)
|
|
HIGHBD_VARIANCES(16, 16)
|
|
HIGHBD_VARIANCES(16, 8)
|
|
HIGHBD_VARIANCES(8, 16)
|
|
HIGHBD_VARIANCES(8, 8)
|
|
HIGHBD_VARIANCES(8, 4)
|
|
HIGHBD_VARIANCES(4, 8)
|
|
HIGHBD_VARIANCES(4, 4)
|
|
|
|
HIGHBD_GET_VAR(8)
|
|
HIGHBD_GET_VAR(16)
|
|
|
|
HIGHBD_MSE(16, 16)
|
|
HIGHBD_MSE(16, 8)
|
|
HIGHBD_MSE(8, 16)
|
|
HIGHBD_MSE(8, 8)
|
|
|
|
void vpx_highbd_comp_avg_pred(uint16_t *comp_pred, const uint8_t *pred8,
|
|
int width, int height, const uint8_t *ref8,
|
|
int ref_stride) {
|
|
int i, j;
|
|
uint16_t *pred = CONVERT_TO_SHORTPTR(pred8);
|
|
uint16_t *ref = CONVERT_TO_SHORTPTR(ref8);
|
|
for (i = 0; i < height; ++i) {
|
|
for (j = 0; j < width; ++j) {
|
|
const int tmp = pred[j] + ref[j];
|
|
comp_pred[j] = ROUND_POWER_OF_TWO(tmp, 1);
|
|
}
|
|
comp_pred += width;
|
|
pred += width;
|
|
ref += ref_stride;
|
|
}
|
|
}
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|