--- /dev/null
+/*
+ * Copyright (c) 2019 The WebM project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "./vpx_config.h"
+
+// Division using multiplication and shifting. The C implementation does:
+// modifier *= 3;
+// modifier /= index;
+// where 'modifier' is a set of summed values and 'index' is the number of
+// summed values.
+//
+// This equation works out to (m * 3) / i which reduces to:
+// m * 3/4
+// m * 1/2
+// m * 1/3
+//
+// By pairing the multiply with a down shift by 16 (_mm_mulhi_epu16):
+// m * C / 65536
+// we can create a C to replicate the division.
+//
+// m * 49152 / 65536 = m * 3/4
+// m * 32758 / 65536 = m * 1/2
+// m * 21846 / 65536 = m * 0.3333
+//
+// These are loaded using an instruction expecting int16_t values but are used
+// with _mm_mulhi_epu16(), which treats them as unsigned.
+#define NEIGHBOR_CONSTANT_4 (int16_t)49152
+#define NEIGHBOR_CONSTANT_5 (int16_t)39322
+#define NEIGHBOR_CONSTANT_6 (int16_t)32768
+#define NEIGHBOR_CONSTANT_7 (int16_t)28087
+#define NEIGHBOR_CONSTANT_8 (int16_t)24576
+#define NEIGHBOR_CONSTANT_9 (int16_t)21846
+#define NEIGHBOR_CONSTANT_10 (int16_t)19661
+#define NEIGHBOR_CONSTANT_11 (int16_t)17874
+#define NEIGHBOR_CONSTANT_13 (int16_t)15124
+
+DECLARE_ALIGNED(16, static const int16_t, LEFT_CORNER_NEIGHBORS_PLUS_1[8]) = {
+ NEIGHBOR_CONSTANT_5, NEIGHBOR_CONSTANT_7, NEIGHBOR_CONSTANT_7,
+ NEIGHBOR_CONSTANT_7, NEIGHBOR_CONSTANT_7, NEIGHBOR_CONSTANT_7,
+ NEIGHBOR_CONSTANT_7, NEIGHBOR_CONSTANT_7
+};
+
+DECLARE_ALIGNED(16, static const int16_t, RIGHT_CORNER_NEIGHBORS_PLUS_1[8]) = {
+ NEIGHBOR_CONSTANT_7, NEIGHBOR_CONSTANT_7, NEIGHBOR_CONSTANT_7,
+ NEIGHBOR_CONSTANT_7, NEIGHBOR_CONSTANT_7, NEIGHBOR_CONSTANT_7,
+ NEIGHBOR_CONSTANT_7, NEIGHBOR_CONSTANT_5
+};
+
+DECLARE_ALIGNED(16, static const int16_t, LEFT_EDGE_NEIGHBORS_PLUS_1[8]) = {
+ NEIGHBOR_CONSTANT_7, NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10,
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10,
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10
+};
+
+DECLARE_ALIGNED(16, static const int16_t, RIGHT_EDGE_NEIGHBORS_PLUS_1[8]) = {
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10,
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10,
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_7
+};
+
+DECLARE_ALIGNED(16, static const int16_t, MIDDLE_EDGE_NEIGHBORS_PLUS_1[8]) = {
+ NEIGHBOR_CONSTANT_7, NEIGHBOR_CONSTANT_7, NEIGHBOR_CONSTANT_7,
+ NEIGHBOR_CONSTANT_7, NEIGHBOR_CONSTANT_7, NEIGHBOR_CONSTANT_7,
+ NEIGHBOR_CONSTANT_7, NEIGHBOR_CONSTANT_7
+};
+
+DECLARE_ALIGNED(16, static const int16_t, MIDDLE_CENTER_NEIGHBORS_PLUS_1[8]) = {
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10,
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10,
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10
+};
+
+DECLARE_ALIGNED(16, static const int16_t, LEFT_CORNER_NEIGHBORS_PLUS_2[8]) = {
+ NEIGHBOR_CONSTANT_6, NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_8,
+ NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_8,
+ NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_8
+};
+
+DECLARE_ALIGNED(16, static const int16_t, RIGHT_CORNER_NEIGHBORS_PLUS_2[8]) = {
+ NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_8,
+ NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_8,
+ NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_6
+};
+
+DECLARE_ALIGNED(16, static const int16_t, LEFT_EDGE_NEIGHBORS_PLUS_2[8]) = {
+ NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_11, NEIGHBOR_CONSTANT_11,
+ NEIGHBOR_CONSTANT_11, NEIGHBOR_CONSTANT_11, NEIGHBOR_CONSTANT_11,
+ NEIGHBOR_CONSTANT_11, NEIGHBOR_CONSTANT_11
+};
+
+DECLARE_ALIGNED(16, static const int16_t, RIGHT_EDGE_NEIGHBORS_PLUS_2[8]) = {
+ NEIGHBOR_CONSTANT_11, NEIGHBOR_CONSTANT_11, NEIGHBOR_CONSTANT_11,
+ NEIGHBOR_CONSTANT_11, NEIGHBOR_CONSTANT_11, NEIGHBOR_CONSTANT_11,
+ NEIGHBOR_CONSTANT_11, NEIGHBOR_CONSTANT_8
+};
+
+DECLARE_ALIGNED(16, static const int16_t, MIDDLE_EDGE_NEIGHBORS_PLUS_2[8]) = {
+ NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_8,
+ NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_8,
+ NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_8
+};
+
+DECLARE_ALIGNED(16, static const int16_t, MIDDLE_CENTER_NEIGHBORS_PLUS_2[8]) = {
+ NEIGHBOR_CONSTANT_11, NEIGHBOR_CONSTANT_11, NEIGHBOR_CONSTANT_11,
+ NEIGHBOR_CONSTANT_11, NEIGHBOR_CONSTANT_11, NEIGHBOR_CONSTANT_11,
+ NEIGHBOR_CONSTANT_11, NEIGHBOR_CONSTANT_11
+};
+
+DECLARE_ALIGNED(16, static const int16_t, TWO_CORNER_NEIGHBORS_PLUS_2[8]) = {
+ NEIGHBOR_CONSTANT_6, NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_8,
+ NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_8,
+ NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_6
+};
+
+DECLARE_ALIGNED(16, static const int16_t, TWO_EDGE_NEIGHBORS_PLUS_2[8]) = {
+ NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_11, NEIGHBOR_CONSTANT_11,
+ NEIGHBOR_CONSTANT_11, NEIGHBOR_CONSTANT_11, NEIGHBOR_CONSTANT_11,
+ NEIGHBOR_CONSTANT_11, NEIGHBOR_CONSTANT_8
+};
+
+DECLARE_ALIGNED(16, static const int16_t, LEFT_CORNER_NEIGHBORS_PLUS_4[8]) = {
+ NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10,
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10,
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10
+};
+
+DECLARE_ALIGNED(16, static const int16_t, RIGHT_CORNER_NEIGHBORS_PLUS_4[8]) = {
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10,
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10,
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_8
+};
+
+DECLARE_ALIGNED(16, static const int16_t, LEFT_EDGE_NEIGHBORS_PLUS_4[8]) = {
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_13, NEIGHBOR_CONSTANT_13,
+ NEIGHBOR_CONSTANT_13, NEIGHBOR_CONSTANT_13, NEIGHBOR_CONSTANT_13,
+ NEIGHBOR_CONSTANT_13, NEIGHBOR_CONSTANT_13
+};
+
+DECLARE_ALIGNED(16, static const int16_t, RIGHT_EDGE_NEIGHBORS_PLUS_4[8]) = {
+ NEIGHBOR_CONSTANT_13, NEIGHBOR_CONSTANT_13, NEIGHBOR_CONSTANT_13,
+ NEIGHBOR_CONSTANT_13, NEIGHBOR_CONSTANT_13, NEIGHBOR_CONSTANT_13,
+ NEIGHBOR_CONSTANT_13, NEIGHBOR_CONSTANT_10
+};
+
+DECLARE_ALIGNED(16, static const int16_t, MIDDLE_EDGE_NEIGHBORS_PLUS_4[8]) = {
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10,
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10,
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10
+};
+
+DECLARE_ALIGNED(16, static const int16_t, MIDDLE_CENTER_NEIGHBORS_PLUS_4[8]) = {
+ NEIGHBOR_CONSTANT_13, NEIGHBOR_CONSTANT_13, NEIGHBOR_CONSTANT_13,
+ NEIGHBOR_CONSTANT_13, NEIGHBOR_CONSTANT_13, NEIGHBOR_CONSTANT_13,
+ NEIGHBOR_CONSTANT_13, NEIGHBOR_CONSTANT_13
+};
+
+DECLARE_ALIGNED(16, static const int16_t, TWO_CORNER_NEIGHBORS_PLUS_4[8]) = {
+ NEIGHBOR_CONSTANT_8, NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10,
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_10,
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_8
+};
+
+DECLARE_ALIGNED(16, static const int16_t, TWO_EDGE_NEIGHBORS_PLUS_4[8]) = {
+ NEIGHBOR_CONSTANT_10, NEIGHBOR_CONSTANT_13, NEIGHBOR_CONSTANT_13,
+ NEIGHBOR_CONSTANT_13, NEIGHBOR_CONSTANT_13, NEIGHBOR_CONSTANT_13,
+ NEIGHBOR_CONSTANT_13, NEIGHBOR_CONSTANT_10
+};
+
+static const int16_t *const LUMA_LEFT_COLUMN_NEIGHBORS[2] = {
+ LEFT_CORNER_NEIGHBORS_PLUS_2, LEFT_EDGE_NEIGHBORS_PLUS_2
+};
+
+static const int16_t *const LUMA_MIDDLE_COLUMN_NEIGHBORS[2] = {
+ MIDDLE_EDGE_NEIGHBORS_PLUS_2, MIDDLE_CENTER_NEIGHBORS_PLUS_2
+};
+
+static const int16_t *const LUMA_RIGHT_COLUMN_NEIGHBORS[2] = {
+ RIGHT_CORNER_NEIGHBORS_PLUS_2, RIGHT_EDGE_NEIGHBORS_PLUS_2
+};
+
+static const int16_t *const CHROMA_NO_SS_LEFT_COLUMN_NEIGHBORS[2] = {
+ LEFT_CORNER_NEIGHBORS_PLUS_1, LEFT_EDGE_NEIGHBORS_PLUS_1
+};
+
+static const int16_t *const CHROMA_NO_SS_MIDDLE_COLUMN_NEIGHBORS[2] = {
+ MIDDLE_EDGE_NEIGHBORS_PLUS_1, MIDDLE_CENTER_NEIGHBORS_PLUS_1
+};
+
+static const int16_t *const CHROMA_NO_SS_RIGHT_COLUMN_NEIGHBORS[2] = {
+ RIGHT_CORNER_NEIGHBORS_PLUS_1, RIGHT_EDGE_NEIGHBORS_PLUS_1
+};
+
+static const int16_t *const CHROMA_SINGLE_SS_LEFT_COLUMN_NEIGHBORS[2] = {
+ LEFT_CORNER_NEIGHBORS_PLUS_2, LEFT_EDGE_NEIGHBORS_PLUS_2
+};
+
+static const int16_t *const CHROMA_SINGLE_SS_MIDDLE_COLUMN_NEIGHBORS[2] = {
+ MIDDLE_EDGE_NEIGHBORS_PLUS_2, MIDDLE_CENTER_NEIGHBORS_PLUS_2
+};
+
+static const int16_t *const CHROMA_SINGLE_SS_RIGHT_COLUMN_NEIGHBORS[2] = {
+ RIGHT_CORNER_NEIGHBORS_PLUS_2, RIGHT_EDGE_NEIGHBORS_PLUS_2
+};
+
+static const int16_t *const CHROMA_SINGLE_SS_SINGLE_COLUMN_NEIGHBORS[2] = {
+ TWO_CORNER_NEIGHBORS_PLUS_2, TWO_EDGE_NEIGHBORS_PLUS_2
+};
+
+static const int16_t *const CHROMA_DOUBLE_SS_LEFT_COLUMN_NEIGHBORS[2] = {
+ LEFT_CORNER_NEIGHBORS_PLUS_4, LEFT_EDGE_NEIGHBORS_PLUS_4
+};
+
+static const int16_t *const CHROMA_DOUBLE_SS_MIDDLE_COLUMN_NEIGHBORS[2] = {
+ MIDDLE_EDGE_NEIGHBORS_PLUS_4, MIDDLE_CENTER_NEIGHBORS_PLUS_4
+};
+
+static const int16_t *const CHROMA_DOUBLE_SS_RIGHT_COLUMN_NEIGHBORS[2] = {
+ RIGHT_CORNER_NEIGHBORS_PLUS_4, RIGHT_EDGE_NEIGHBORS_PLUS_4
+};
+
+static const int16_t *const CHROMA_DOUBLE_SS_SINGLE_COLUMN_NEIGHBORS[2] = {
+ TWO_CORNER_NEIGHBORS_PLUS_4, TWO_EDGE_NEIGHBORS_PLUS_4
+};
+
+#define DIST_STRIDE ((BW) + 2)
#include "./vp9_rtcd.h"
#include "./vpx_config.h"
#include "vpx/vpx_integer.h"
-
-// Division using multiplication and shifting. The C implementation does:
-// modifier *= 3;
-// modifier /= index;
-// where 'modifier' is a set of summed values and 'index' is the number of
-// summed values. 'index' may be 4, 6, or 9, representing a block of 9 values
-// which may be bound by the edges of the block being filtered.
-//
-// This equation works out to (m * 3) / i which reduces to:
-// m * 3/4
-// m * 1/2
-// m * 1/3
-//
-// By pairing the multiply with a down shift by 16 (_mm_mulhi_epu16):
-// m * C / 65536
-// we can create a C to replicate the division.
-//
-// m * 49152 / 65536 = m * 3/4
-// m * 32758 / 65536 = m * 1/2
-// m * 21846 / 65536 = m * 0.3333
-//
-// These are loaded using an instruction expecting int16_t values but are used
-// with _mm_mulhi_epu16(), which treats them as unsigned.
-#define NEIGHBOR_CONSTANT_4 (int16_t)49152
-#define NEIGHBOR_CONSTANT_6 (int16_t)32768
-#define NEIGHBOR_CONSTANT_9 (int16_t)21846
+#include "vp9/encoder/vp9_encoder.h"
+#include "vp9/encoder/vp9_temporal_filter.h"
+#include "vp9/encoder/x86/temporal_filter_constants.h"
// Load values from 'a' and 'b'. Compute the difference squared and sum
// neighboring values such that:
*sum_1 = sum_u16;
}
+// Read in 8 pixels from a and b as 8-bit unsigned integers, compute the
+// difference squared, and store as unsigned 16-bit integer to dst.
+static INLINE void store_dist_8(const uint8_t *a, const uint8_t *b,
+ uint16_t *dst) {
+ const __m128i a_reg = _mm_loadl_epi64((const __m128i *)a);
+ const __m128i b_reg = _mm_loadl_epi64((const __m128i *)b);
+
+ const __m128i a_first = _mm_cvtepu8_epi16(a_reg);
+ const __m128i b_first = _mm_cvtepu8_epi16(b_reg);
+
+ __m128i dist_first;
+
+ dist_first = _mm_sub_epi16(a_first, b_first);
+ dist_first = _mm_mullo_epi16(dist_first, dist_first);
+
+ _mm_storeu_si128((__m128i *)dst, dist_first);
+}
+
+static INLINE void store_dist_16(const uint8_t *a, const uint8_t *b,
+ uint16_t *dst) {
+ const __m128i zero = _mm_setzero_si128();
+ const __m128i a_reg = _mm_loadu_si128((const __m128i *)a);
+ const __m128i b_reg = _mm_loadu_si128((const __m128i *)b);
+
+ const __m128i a_first = _mm_cvtepu8_epi16(a_reg);
+ const __m128i a_second = _mm_unpackhi_epi8(a_reg, zero);
+ const __m128i b_first = _mm_cvtepu8_epi16(b_reg);
+ const __m128i b_second = _mm_unpackhi_epi8(b_reg, zero);
+
+ __m128i dist_first, dist_second;
+
+ dist_first = _mm_sub_epi16(a_first, b_first);
+ dist_second = _mm_sub_epi16(a_second, b_second);
+ dist_first = _mm_mullo_epi16(dist_first, dist_first);
+ dist_second = _mm_mullo_epi16(dist_second, dist_second);
+
+ _mm_storeu_si128((__m128i *)dst, dist_first);
+ _mm_storeu_si128((__m128i *)(dst + 8), dist_second);
+}
+
+static INLINE void read_dist_8(const uint16_t *dist, __m128i *dist_reg) {
+ *dist_reg = _mm_loadu_si128((const __m128i *)dist);
+}
+
+static INLINE void read_dist_16(const uint16_t *dist, __m128i *reg_first,
+ __m128i *reg_second) {
+ read_dist_8(dist, reg_first);
+ read_dist_8(dist + 8, reg_second);
+}
+
// Average the value based on the number of values summed (9 for pixels away
// from the border, 4 for pixels in corners, and 6 for other edge values).
//
// Add in the rounding factor and shift, clamp to 16, invert and shift. Multiply
// by weight.
-static __m128i average_8(__m128i sum, const __m128i mul_constants,
+static __m128i average_8(__m128i sum, const __m128i *mul_constants,
const int strength, const int rounding,
const int weight) {
// _mm_srl_epi16 uses the lower 64 bit value for the shift.
const __m128i sixteen = _mm_set1_epi16(16);
// modifier * 3 / index;
- sum = _mm_mulhi_epu16(sum, mul_constants);
+ sum = _mm_mulhi_epu16(sum, *mul_constants);
+
+ sum = _mm_adds_epu16(sum, rounding_u16);
+ sum = _mm_srl_epi16(sum, strength_u128);
+
+ // The maximum input to this comparison is UINT16_MAX * NEIGHBOR_CONSTANT_4
+ // >> 16 (also NEIGHBOR_CONSTANT_4 -1) which is 49151 / 0xbfff / -16385
+ // So this needs to use the epu16 version which did not come until SSE4.
+ sum = _mm_min_epu16(sum, sixteen);
+
+ sum = _mm_sub_epi16(sixteen, sum);
+
+ return _mm_mullo_epi16(sum, weight_u16);
+}
+
+static __m128i average_4_4(__m128i sum, const __m128i *mul_constants,
+ const int strength, const int rounding,
+ const int weight_0, const int weight_1) {
+ // _mm_srl_epi16 uses the lower 64 bit value for the shift.
+ const __m128i strength_u128 = _mm_set_epi32(0, 0, 0, strength);
+ const __m128i rounding_u16 = _mm_set1_epi16(rounding);
+ const __m128i weight_u16 =
+ _mm_setr_epi16(weight_0, weight_0, weight_0, weight_0, weight_1, weight_1,
+ weight_1, weight_1);
+ const __m128i sixteen = _mm_set1_epi16(16);
+
+ // modifier * 3 / index;
+ sum = _mm_mulhi_epu16(sum, *mul_constants);
sum = _mm_adds_epu16(sum, rounding_u16);
sum = _mm_srl_epi16(sum, strength_u128);
return _mm_mullo_epi16(sum, weight_u16);
}
-static void average_16(__m128i *sum_0_u16, __m128i *sum_1_u16,
- const __m128i mul_constants_0,
- const __m128i mul_constants_1, const int strength,
- const int rounding, const int weight) {
+static INLINE void average_16(__m128i *sum_0_u16, __m128i *sum_1_u16,
+ const __m128i *mul_constants_0,
+ const __m128i *mul_constants_1,
+ const int strength, const int rounding,
+ const int weight) {
const __m128i strength_u128 = _mm_set_epi32(0, 0, 0, strength);
const __m128i rounding_u16 = _mm_set1_epi16(rounding);
const __m128i weight_u16 = _mm_set1_epi16(weight);
const __m128i sixteen = _mm_set1_epi16(16);
__m128i input_0, input_1;
- input_0 = _mm_mulhi_epu16(*sum_0_u16, mul_constants_0);
+ input_0 = _mm_mulhi_epu16(*sum_0_u16, *mul_constants_0);
input_0 = _mm_adds_epu16(input_0, rounding_u16);
- input_1 = _mm_mulhi_epu16(*sum_1_u16, mul_constants_1);
+ input_1 = _mm_mulhi_epu16(*sum_1_u16, *mul_constants_1);
input_1 = _mm_adds_epu16(input_1, rounding_u16);
input_0 = _mm_srl_epi16(input_0, strength_u128);
_mm_storeu_si128((__m128i *)(accumulator + 4), accum_1_u32);
}
-static void accumulate_and_store_16(const __m128i sum_0_u16,
- const __m128i sum_1_u16,
- const uint8_t *pred, uint16_t *count,
- uint32_t *accumulator) {
+static INLINE void accumulate_and_store_16(const __m128i sum_0_u16,
+ const __m128i sum_1_u16,
+ const uint8_t *pred, uint16_t *count,
+ uint32_t *accumulator) {
const __m128i pred_u8 = _mm_loadu_si128((const __m128i *)pred);
const __m128i zero = _mm_setzero_si128();
__m128i count_0_u16 = _mm_loadu_si128((const __m128i *)count),
_mm_storeu_si128((__m128i *)(accumulator + 12), accum_3_u32);
}
+// Read in 8 pixels from y_dist. For each index i, compute y_dist[i-1] +
+// y_dist[i] + y_dist[i+1] and store in sum as 16-bit unsigned int.
+static INLINE void get_sum_8(const uint16_t *y_dist, __m128i *sum) {
+ __m128i dist_reg, dist_left, dist_right;
+
+ dist_reg = _mm_loadu_si128((const __m128i *)y_dist);
+ dist_left = _mm_loadu_si128((const __m128i *)(y_dist - 1));
+ dist_right = _mm_loadu_si128((const __m128i *)(y_dist + 1));
+
+ *sum = _mm_adds_epu16(dist_reg, dist_left);
+ *sum = _mm_adds_epu16(*sum, dist_right);
+}
+
+// Read in 16 pixels from y_dist. For each index i, compute y_dist[i-1] +
+// y_dist[i] + y_dist[i+1]. Store the result for first 8 pixels in sum_first and
+// the rest in sum_second.
+static INLINE void get_sum_16(const uint16_t *y_dist, __m128i *sum_first,
+ __m128i *sum_second) {
+ get_sum_8(y_dist, sum_first);
+ get_sum_8(y_dist + 8, sum_second);
+}
+
void vp9_temporal_filter_apply_sse4_1(const uint8_t *a, unsigned int stride,
const uint8_t *b, unsigned int width,
unsigned int height, int strength,
sum_8(a, b, &sum_row_a);
sum_8(a + stride, b + width, &sum_row_b);
sum_row_c = _mm_adds_epu16(sum_row_a, sum_row_b);
- sum_row_c = average_8(sum_row_c, mul_constants, strength, rounding, weight);
+ sum_row_c =
+ average_8(sum_row_c, &mul_constants, strength, rounding, weight);
accumulate_and_store_8(sum_row_c, b, count, accumulator);
a += stride + stride;
sum_row_a = _mm_adds_epu16(sum_row_a, sum_row_b);
sum_row_a = _mm_adds_epu16(sum_row_a, sum_row_c);
sum_row_a =
- average_8(sum_row_a, mul_constants, strength, rounding, weight);
+ average_8(sum_row_a, &mul_constants, strength, rounding, weight);
accumulate_and_store_8(sum_row_a, b, count, accumulator);
a += stride;
NEIGHBOR_CONSTANT_6, NEIGHBOR_CONSTANT_6,
NEIGHBOR_CONSTANT_6, NEIGHBOR_CONSTANT_4);
sum_row_a = _mm_adds_epu16(sum_row_a, sum_row_b);
- sum_row_a = average_8(sum_row_a, mul_constants, strength, rounding, weight);
+ sum_row_a =
+ average_8(sum_row_a, &mul_constants, strength, rounding, weight);
accumulate_and_store_8(sum_row_a, b, count, accumulator);
} else { // width == 16
sum_row_c_0 = _mm_adds_epu16(sum_row_a_0, sum_row_b_0);
sum_row_c_1 = _mm_adds_epu16(sum_row_a_1, sum_row_b_1);
- average_16(&sum_row_c_0, &sum_row_c_1, mul_constants_0, mul_constants_1,
+ average_16(&sum_row_c_0, &sum_row_c_1, &mul_constants_0, &mul_constants_1,
strength, rounding, weight);
accumulate_and_store_16(sum_row_c_0, sum_row_c_1, b, count, accumulator);
sum_row_a_1 = _mm_adds_epu16(sum_row_a_1, sum_row_b_1);
sum_row_a_1 = _mm_adds_epu16(sum_row_a_1, sum_row_c_1);
- average_16(&sum_row_a_0, &sum_row_a_1, mul_constants_0, mul_constants_1,
+ average_16(&sum_row_a_0, &sum_row_a_1, &mul_constants_0, &mul_constants_1,
strength, rounding, weight);
accumulate_and_store_16(sum_row_a_0, sum_row_a_1, b, count, accumulator);
sum_row_c_0 = _mm_adds_epu16(sum_row_a_0, sum_row_b_0);
sum_row_c_1 = _mm_adds_epu16(sum_row_a_1, sum_row_b_1);
- average_16(&sum_row_c_0, &sum_row_c_1, mul_constants_0, mul_constants_1,
+ average_16(&sum_row_c_0, &sum_row_c_1, &mul_constants_0, &mul_constants_1,
strength, rounding, weight);
accumulate_and_store_16(sum_row_c_0, sum_row_c_1, b, count, accumulator);
}
}
+
+// Read in a row of chroma values corresponds to a row of 16 luma values.
+static INLINE void read_chroma_dist_row_16(int ss_x, const uint16_t *u_dist,
+ const uint16_t *v_dist,
+ __m128i *u_first, __m128i *u_second,
+ __m128i *v_first,
+ __m128i *v_second) {
+ if (!ss_x) {
+ // If there is no chroma subsampling in the horizaontal direction, then we
+ // need to load 16 entries from chroma.
+ read_dist_16(u_dist, u_first, u_second);
+ read_dist_16(v_dist, v_first, v_second);
+ } else { // ss_x == 1
+ // Otherwise, we only need to load 8 entries
+ __m128i u_reg, v_reg;
+
+ read_dist_8(u_dist, &u_reg);
+
+ *u_first = _mm_unpacklo_epi16(u_reg, u_reg);
+ *u_second = _mm_unpackhi_epi16(u_reg, u_reg);
+
+ read_dist_8(v_dist, &v_reg);
+
+ *v_first = _mm_unpacklo_epi16(v_reg, v_reg);
+ *v_second = _mm_unpackhi_epi16(v_reg, v_reg);
+ }
+}
+
+// Horizonta add unsigned 16-bit ints in src and store them as signed 32-bit int
+// in dst.
+static INLINE void hadd_epu16(__m128i *src, __m128i *dst) {
+ const __m128i zero = _mm_setzero_si128();
+ const __m128i shift_right = _mm_srli_si128(*src, 2);
+
+ const __m128i odd = _mm_blend_epi16(shift_right, zero, 170);
+ const __m128i even = _mm_blend_epi16(*src, zero, 170);
+
+ *dst = _mm_add_epi32(even, odd);
+}
+
+// Add a row of luma distortion to 8 corresponding chroma mods.
+static INLINE void add_luma_dist_to_8_chroma_mod(const uint16_t *y_dist,
+ int ss_x, int ss_y,
+ __m128i *u_mod,
+ __m128i *v_mod) {
+ __m128i y_reg;
+ if (!ss_x) {
+ read_dist_8(y_dist, &y_reg);
+ if (ss_y == 1) {
+ __m128i y_tmp;
+ read_dist_8(y_dist + DIST_STRIDE, &y_tmp);
+
+ y_reg = _mm_adds_epu16(y_reg, y_tmp);
+ }
+ } else {
+ __m128i y_first, y_second;
+ read_dist_16(y_dist, &y_first, &y_second);
+ if (ss_y == 1) {
+ __m128i y_tmp_0, y_tmp_1;
+ read_dist_16(y_dist + DIST_STRIDE, &y_tmp_0, &y_tmp_1);
+
+ y_first = _mm_adds_epu16(y_first, y_tmp_0);
+ y_second = _mm_adds_epu16(y_second, y_tmp_1);
+ }
+
+ hadd_epu16(&y_first, &y_first);
+ hadd_epu16(&y_second, &y_second);
+
+ y_reg = _mm_packus_epi32(y_first, y_second);
+ }
+
+ *u_mod = _mm_adds_epu16(*u_mod, y_reg);
+ *v_mod = _mm_adds_epu16(*v_mod, y_reg);
+}
+
+// Apply temporal filter to the luma components. This performs temporal
+// filtering on a luma block of 16 X block_height. Use blk_fw as an array of
+// size 4for the weights for each of the 4 subblocks if blk_fw is not NULL,
+// else use top_weight for top half, and bottom weight for bottom half.
+static void vp9_apply_temporal_filter_luma_16(
+ const uint8_t *y_src, int y_src_stride, const uint8_t *y_pre,
+ int y_pre_stride, const uint8_t *u_src, const uint8_t *v_src,
+ int uv_src_stride, const uint8_t *u_pre, const uint8_t *v_pre,
+ int uv_pre_stride, unsigned int block_width, unsigned int block_height,
+ int ss_x, int ss_y, int strength, int use_whole_blk, uint32_t *y_accum,
+ uint16_t *y_count, const uint16_t *y_dist, const uint16_t *u_dist,
+ const uint16_t *v_dist, const int16_t *const *neighbors_first,
+ const int16_t *const *neighbors_second, int top_weight, int bottom_weight,
+ const int *blk_fw) {
+ const int rounding = (1 << strength) >> 1;
+ int weight = top_weight;
+
+ __m128i mul_first, mul_second;
+
+ __m128i sum_row_1_first, sum_row_1_second;
+ __m128i sum_row_2_first, sum_row_2_second;
+ __m128i sum_row_3_first, sum_row_3_second;
+
+ __m128i u_first, u_second;
+ __m128i v_first, v_second;
+
+ __m128i sum_row_first;
+ __m128i sum_row_second;
+
+ assert(strength >= 0);
+ assert(strength <= 6);
+
+ assert(block_width == 16);
+
+ (void)block_width;
+
+ // First row
+ mul_first = _mm_loadu_si128((const __m128i *)neighbors_first[0]);
+ mul_second = _mm_loadu_si128((const __m128i *)neighbors_second[0]);
+
+ // Add luma values
+ get_sum_16(y_dist, &sum_row_2_first, &sum_row_2_second);
+ get_sum_16(y_dist + DIST_STRIDE, &sum_row_3_first, &sum_row_3_second);
+
+ sum_row_first = _mm_adds_epu16(sum_row_2_first, sum_row_3_first);
+ sum_row_second = _mm_adds_epu16(sum_row_2_second, sum_row_3_second);
+
+ // Add chroma values
+ read_chroma_dist_row_16(ss_x, u_dist, v_dist, &u_first, &u_second, &v_first,
+ &v_second);
+
+ sum_row_first = _mm_adds_epu16(sum_row_first, u_first);
+ sum_row_second = _mm_adds_epu16(sum_row_second, u_second);
+
+ sum_row_first = _mm_adds_epu16(sum_row_first, v_first);
+ sum_row_second = _mm_adds_epu16(sum_row_second, v_second);
+
+ // Get modifier and store result
+ if (blk_fw) {
+ sum_row_first =
+ average_8(sum_row_first, &mul_first, strength, rounding, blk_fw[0]);
+ sum_row_second =
+ average_8(sum_row_second, &mul_second, strength, rounding, blk_fw[1]);
+ } else {
+ average_16(&sum_row_first, &sum_row_second, &mul_first, &mul_second,
+ strength, rounding, weight);
+ }
+ accumulate_and_store_16(sum_row_first, sum_row_second, y_pre, y_count,
+ y_accum);
+
+ y_src += y_src_stride;
+ y_pre += y_pre_stride;
+ y_count += y_pre_stride;
+ y_accum += y_pre_stride;
+ y_dist += DIST_STRIDE;
+
+ u_src += uv_src_stride;
+ u_pre += uv_pre_stride;
+ u_dist += DIST_STRIDE;
+ v_src += uv_src_stride;
+ v_pre += uv_pre_stride;
+ v_dist += DIST_STRIDE;
+
+ // Then all the rows except the last one
+ mul_first = _mm_loadu_si128((const __m128i *)neighbors_first[1]);
+ mul_second = _mm_loadu_si128((const __m128i *)neighbors_second[1]);
+
+ for (unsigned int h = 1; h < block_height - 1; ++h) {
+ // Move the weight to bottom half
+ if (!use_whole_blk && h == block_height / 2) {
+ if (blk_fw) {
+ blk_fw += 2;
+ } else {
+ weight = bottom_weight;
+ }
+ }
+ // Shift the rows up
+ sum_row_1_first = sum_row_2_first;
+ sum_row_1_second = sum_row_2_second;
+ sum_row_2_first = sum_row_3_first;
+ sum_row_2_second = sum_row_3_second;
+
+ // Add luma values to the modifier
+ sum_row_first = _mm_adds_epu16(sum_row_1_first, sum_row_2_first);
+ sum_row_second = _mm_adds_epu16(sum_row_1_second, sum_row_2_second);
+
+ get_sum_16(y_dist + DIST_STRIDE, &sum_row_3_first, &sum_row_3_second);
+
+ sum_row_first = _mm_adds_epu16(sum_row_first, sum_row_3_first);
+ sum_row_second = _mm_adds_epu16(sum_row_second, sum_row_3_second);
+
+ // Add chroma values to the modifier
+ if (ss_y == 0 || h % 2 == 0) {
+ // Only calculate the new chroma distortion if we are at a pixel that
+ // corresponds to a new chroma row
+ read_chroma_dist_row_16(ss_x, u_dist, v_dist, &u_first, &u_second,
+ &v_first, &v_second);
+
+ u_src += uv_src_stride;
+ u_pre += uv_pre_stride;
+ u_dist += DIST_STRIDE;
+ v_src += uv_src_stride;
+ v_pre += uv_pre_stride;
+ v_dist += DIST_STRIDE;
+ }
+
+ sum_row_first = _mm_adds_epu16(sum_row_first, u_first);
+ sum_row_second = _mm_adds_epu16(sum_row_second, u_second);
+ sum_row_first = _mm_adds_epu16(sum_row_first, v_first);
+ sum_row_second = _mm_adds_epu16(sum_row_second, v_second);
+
+ // Get modifier and store result
+ if (blk_fw) {
+ sum_row_first =
+ average_8(sum_row_first, &mul_first, strength, rounding, blk_fw[0]);
+ sum_row_second =
+ average_8(sum_row_second, &mul_second, strength, rounding, blk_fw[1]);
+ } else {
+ average_16(&sum_row_first, &sum_row_second, &mul_first, &mul_second,
+ strength, rounding, weight);
+ }
+ accumulate_and_store_16(sum_row_first, sum_row_second, y_pre, y_count,
+ y_accum);
+
+ y_src += y_src_stride;
+ y_pre += y_pre_stride;
+ y_count += y_pre_stride;
+ y_accum += y_pre_stride;
+ y_dist += DIST_STRIDE;
+ }
+
+ // The last row
+ mul_first = _mm_loadu_si128((const __m128i *)neighbors_first[0]);
+ mul_second = _mm_loadu_si128((const __m128i *)neighbors_second[0]);
+
+ // Shift the rows up
+ sum_row_1_first = sum_row_2_first;
+ sum_row_1_second = sum_row_2_second;
+ sum_row_2_first = sum_row_3_first;
+ sum_row_2_second = sum_row_3_second;
+
+ // Add luma values to the modifier
+ sum_row_first = _mm_adds_epu16(sum_row_1_first, sum_row_2_first);
+ sum_row_second = _mm_adds_epu16(sum_row_1_second, sum_row_2_second);
+
+ // Add chroma values to the modifier
+ if (ss_y == 0) {
+ // Only calculate the new chroma distortion if we are at a pixel that
+ // corresponds to a new chroma row
+ read_chroma_dist_row_16(ss_x, u_dist, v_dist, &u_first, &u_second, &v_first,
+ &v_second);
+ }
+
+ sum_row_first = _mm_adds_epu16(sum_row_first, u_first);
+ sum_row_second = _mm_adds_epu16(sum_row_second, u_second);
+ sum_row_first = _mm_adds_epu16(sum_row_first, v_first);
+ sum_row_second = _mm_adds_epu16(sum_row_second, v_second);
+
+ // Get modifier and store result
+ if (blk_fw) {
+ sum_row_first =
+ average_8(sum_row_first, &mul_first, strength, rounding, blk_fw[0]);
+ sum_row_second =
+ average_8(sum_row_second, &mul_second, strength, rounding, blk_fw[1]);
+ } else {
+ average_16(&sum_row_first, &sum_row_second, &mul_first, &mul_second,
+ strength, rounding, weight);
+ }
+ accumulate_and_store_16(sum_row_first, sum_row_second, y_pre, y_count,
+ y_accum);
+}
+
+// Perform temporal filter for the luma component.
+static void vp9_apply_temporal_filter_luma(
+ const uint8_t *y_src, int y_src_stride, const uint8_t *y_pre,
+ int y_pre_stride, const uint8_t *u_src, const uint8_t *v_src,
+ int uv_src_stride, const uint8_t *u_pre, const uint8_t *v_pre,
+ int uv_pre_stride, unsigned int block_width, unsigned int block_height,
+ int ss_x, int ss_y, int strength, const int *blk_fw, int use_whole_blk,
+ uint32_t *y_accum, uint16_t *y_count, const uint16_t *y_dist,
+ const uint16_t *u_dist, const uint16_t *v_dist) {
+ unsigned int blk_col = 0, uv_blk_col = 0;
+ const unsigned int blk_col_step = 16, uv_blk_col_step = 16 >> ss_x;
+ const unsigned int mid_width = block_width >> 1,
+ last_width = block_width - blk_col_step;
+ int top_weight = blk_fw[0],
+ bottom_weight = use_whole_blk ? blk_fw[0] : blk_fw[2];
+ const int16_t *const *neighbors_first;
+ const int16_t *const *neighbors_second;
+
+ if (block_width == 16) {
+ // Special Case: The blockwidth is 16 and we are operating on a row of 16
+ // chroma pixels. In this case, we can't use the usualy left-midle-right
+ // pattern. We also don't support splitting now.
+ neighbors_first = LUMA_LEFT_COLUMN_NEIGHBORS;
+ neighbors_second = LUMA_RIGHT_COLUMN_NEIGHBORS;
+ if (use_whole_blk) {
+ vp9_apply_temporal_filter_luma_16(
+ y_src + blk_col, y_src_stride, y_pre + blk_col, y_pre_stride,
+ u_src + uv_blk_col, v_src + uv_blk_col, uv_src_stride,
+ u_pre + uv_blk_col, v_pre + uv_blk_col, uv_pre_stride, 16,
+ block_height, ss_x, ss_y, strength, use_whole_blk, y_accum + blk_col,
+ y_count + blk_col, y_dist + blk_col, u_dist + uv_blk_col,
+ v_dist + uv_blk_col, neighbors_first, neighbors_second, top_weight,
+ bottom_weight, NULL);
+ } else {
+ vp9_apply_temporal_filter_luma_16(
+ y_src + blk_col, y_src_stride, y_pre + blk_col, y_pre_stride,
+ u_src + uv_blk_col, v_src + uv_blk_col, uv_src_stride,
+ u_pre + uv_blk_col, v_pre + uv_blk_col, uv_pre_stride, 16,
+ block_height, ss_x, ss_y, strength, use_whole_blk, y_accum + blk_col,
+ y_count + blk_col, y_dist + blk_col, u_dist + uv_blk_col,
+ v_dist + uv_blk_col, neighbors_first, neighbors_second, 0, 0, blk_fw);
+ }
+
+ return;
+ }
+
+ // Left
+ neighbors_first = LUMA_LEFT_COLUMN_NEIGHBORS;
+ neighbors_second = LUMA_MIDDLE_COLUMN_NEIGHBORS;
+ vp9_apply_temporal_filter_luma_16(
+ y_src + blk_col, y_src_stride, y_pre + blk_col, y_pre_stride,
+ u_src + uv_blk_col, v_src + uv_blk_col, uv_src_stride, u_pre + uv_blk_col,
+ v_pre + uv_blk_col, uv_pre_stride, 16, block_height, ss_x, ss_y, strength,
+ use_whole_blk, y_accum + blk_col, y_count + blk_col, y_dist + blk_col,
+ u_dist + uv_blk_col, v_dist + uv_blk_col, neighbors_first,
+ neighbors_second, top_weight, bottom_weight, NULL);
+
+ blk_col += blk_col_step;
+ uv_blk_col += uv_blk_col_step;
+
+ // Middle First
+ neighbors_first = LUMA_MIDDLE_COLUMN_NEIGHBORS;
+ for (; blk_col < mid_width;
+ blk_col += blk_col_step, uv_blk_col += uv_blk_col_step) {
+ vp9_apply_temporal_filter_luma_16(
+ y_src + blk_col, y_src_stride, y_pre + blk_col, y_pre_stride,
+ u_src + uv_blk_col, v_src + uv_blk_col, uv_src_stride,
+ u_pre + uv_blk_col, v_pre + uv_blk_col, uv_pre_stride, 16, block_height,
+ ss_x, ss_y, strength, use_whole_blk, y_accum + blk_col,
+ y_count + blk_col, y_dist + blk_col, u_dist + uv_blk_col,
+ v_dist + uv_blk_col, neighbors_first, neighbors_second, top_weight,
+ bottom_weight, NULL);
+ }
+
+ if (!use_whole_blk) {
+ top_weight = blk_fw[1];
+ bottom_weight = blk_fw[3];
+ }
+
+ // Middle Second
+ for (; blk_col < last_width;
+ blk_col += blk_col_step, uv_blk_col += uv_blk_col_step) {
+ vp9_apply_temporal_filter_luma_16(
+ y_src + blk_col, y_src_stride, y_pre + blk_col, y_pre_stride,
+ u_src + uv_blk_col, v_src + uv_blk_col, uv_src_stride,
+ u_pre + uv_blk_col, v_pre + uv_blk_col, uv_pre_stride, 16, block_height,
+ ss_x, ss_y, strength, use_whole_blk, y_accum + blk_col,
+ y_count + blk_col, y_dist + blk_col, u_dist + uv_blk_col,
+ v_dist + uv_blk_col, neighbors_first, neighbors_second, top_weight,
+ bottom_weight, NULL);
+ }
+
+ // Right
+ neighbors_second = LUMA_RIGHT_COLUMN_NEIGHBORS;
+ vp9_apply_temporal_filter_luma_16(
+ y_src + blk_col, y_src_stride, y_pre + blk_col, y_pre_stride,
+ u_src + uv_blk_col, v_src + uv_blk_col, uv_src_stride, u_pre + uv_blk_col,
+ v_pre + uv_blk_col, uv_pre_stride, 16, block_height, ss_x, ss_y, strength,
+ use_whole_blk, y_accum + blk_col, y_count + blk_col, y_dist + blk_col,
+ u_dist + uv_blk_col, v_dist + uv_blk_col, neighbors_first,
+ neighbors_second, top_weight, bottom_weight, NULL);
+}
+
+// Apply temporal filter to the chroma components. This performs temporal
+// filtering on a chroma block of 8 X uv_height. If blk_fw is not NULL, use
+// blk_fw as an array of size 4 for the weights for each of the 4 subblocks,
+// else use top_weight for top half, and bottom weight for bottom half.
+static void vp9_apply_temporal_filter_chroma_8(
+ const uint8_t *y_src, int y_src_stride, const uint8_t *y_pre,
+ int y_pre_stride, const uint8_t *u_src, const uint8_t *v_src,
+ int uv_src_stride, const uint8_t *u_pre, const uint8_t *v_pre,
+ int uv_pre_stride, unsigned int uv_block_width,
+ unsigned int uv_block_height, int ss_x, int ss_y, int strength,
+ uint32_t *u_accum, uint16_t *u_count, uint32_t *v_accum, uint16_t *v_count,
+ const uint16_t *y_dist, const uint16_t *u_dist, const uint16_t *v_dist,
+ const int16_t *const *neighbors, int top_weight, int bottom_weight,
+ const int *blk_fw) {
+ const int rounding = (1 << strength) >> 1;
+ int weight = top_weight;
+
+ __m128i mul;
+
+ __m128i u_sum_row_1, u_sum_row_2, u_sum_row_3;
+ __m128i v_sum_row_1, v_sum_row_2, v_sum_row_3;
+
+ __m128i u_sum_row, v_sum_row;
+
+ (void)uv_block_width;
+
+ // First row
+ mul = _mm_loadu_si128((const __m128i *)neighbors[0]);
+
+ // Add chroma values
+ get_sum_8(u_dist, &u_sum_row_2);
+ get_sum_8(u_dist + DIST_STRIDE, &u_sum_row_3);
+
+ u_sum_row = _mm_adds_epu16(u_sum_row_2, u_sum_row_3);
+
+ get_sum_8(v_dist, &v_sum_row_2);
+ get_sum_8(v_dist + DIST_STRIDE, &v_sum_row_3);
+
+ v_sum_row = _mm_adds_epu16(v_sum_row_2, v_sum_row_3);
+
+ // Add luma values
+ add_luma_dist_to_8_chroma_mod(y_dist, ss_x, ss_y, &u_sum_row, &v_sum_row);
+
+ // Get modifier and store result
+ if (blk_fw) {
+ u_sum_row =
+ average_4_4(u_sum_row, &mul, strength, rounding, blk_fw[0], blk_fw[1]);
+ v_sum_row =
+ average_4_4(v_sum_row, &mul, strength, rounding, blk_fw[0], blk_fw[1]);
+ } else {
+ u_sum_row = average_8(u_sum_row, &mul, strength, rounding, weight);
+ v_sum_row = average_8(v_sum_row, &mul, strength, rounding, weight);
+ }
+ accumulate_and_store_8(u_sum_row, u_pre, u_count, u_accum);
+ accumulate_and_store_8(v_sum_row, v_pre, v_count, v_accum);
+
+ u_src += uv_src_stride;
+ u_pre += uv_pre_stride;
+ u_dist += DIST_STRIDE;
+ v_src += uv_src_stride;
+ v_pre += uv_pre_stride;
+ v_dist += DIST_STRIDE;
+ u_count += uv_pre_stride;
+ u_accum += uv_pre_stride;
+ v_count += uv_pre_stride;
+ v_accum += uv_pre_stride;
+
+ y_src += y_src_stride * (1 + ss_y);
+ y_pre += y_pre_stride * (1 + ss_y);
+ y_dist += DIST_STRIDE * (1 + ss_y);
+
+ // Then all the rows except the last one
+ mul = _mm_loadu_si128((const __m128i *)neighbors[1]);
+
+ for (unsigned int h = 1; h < uv_block_height - 1; ++h) {
+ // Move the weight pointer to the bottom half of the blocks
+ if (h == uv_block_height / 2) {
+ if (blk_fw) {
+ blk_fw += 2;
+ } else {
+ weight = bottom_weight;
+ }
+ }
+
+ // Shift the rows up
+ u_sum_row_1 = u_sum_row_2;
+ u_sum_row_2 = u_sum_row_3;
+
+ v_sum_row_1 = v_sum_row_2;
+ v_sum_row_2 = v_sum_row_3;
+
+ // Add chroma values
+ u_sum_row = _mm_adds_epu16(u_sum_row_1, u_sum_row_2);
+ get_sum_8(u_dist + DIST_STRIDE, &u_sum_row_3);
+ u_sum_row = _mm_adds_epu16(u_sum_row, u_sum_row_3);
+
+ v_sum_row = _mm_adds_epu16(v_sum_row_1, v_sum_row_2);
+ get_sum_8(v_dist + DIST_STRIDE, &v_sum_row_3);
+ v_sum_row = _mm_adds_epu16(v_sum_row, v_sum_row_3);
+
+ // Add luma values
+ add_luma_dist_to_8_chroma_mod(y_dist, ss_x, ss_y, &u_sum_row, &v_sum_row);
+
+ // Get modifier and store result
+ if (blk_fw) {
+ u_sum_row = average_4_4(u_sum_row, &mul, strength, rounding, blk_fw[0],
+ blk_fw[1]);
+ v_sum_row = average_4_4(v_sum_row, &mul, strength, rounding, blk_fw[0],
+ blk_fw[1]);
+ } else {
+ u_sum_row = average_8(u_sum_row, &mul, strength, rounding, weight);
+ v_sum_row = average_8(v_sum_row, &mul, strength, rounding, weight);
+ }
+
+ accumulate_and_store_8(u_sum_row, u_pre, u_count, u_accum);
+ accumulate_and_store_8(v_sum_row, v_pre, v_count, v_accum);
+
+ u_src += uv_src_stride;
+ u_pre += uv_pre_stride;
+ u_dist += DIST_STRIDE;
+ v_src += uv_src_stride;
+ v_pre += uv_pre_stride;
+ v_dist += DIST_STRIDE;
+ u_count += uv_pre_stride;
+ u_accum += uv_pre_stride;
+ v_count += uv_pre_stride;
+ v_accum += uv_pre_stride;
+
+ y_src += y_src_stride * (1 + ss_y);
+ y_pre += y_pre_stride * (1 + ss_y);
+ y_dist += DIST_STRIDE * (1 + ss_y);
+ }
+
+ // The last row
+ mul = _mm_loadu_si128((const __m128i *)neighbors[0]);
+
+ // Shift the rows up
+ u_sum_row_1 = u_sum_row_2;
+ u_sum_row_2 = u_sum_row_3;
+
+ v_sum_row_1 = v_sum_row_2;
+ v_sum_row_2 = v_sum_row_3;
+
+ // Add chroma values
+ u_sum_row = _mm_adds_epu8(u_sum_row_1, u_sum_row_2);
+ v_sum_row = _mm_adds_epu8(v_sum_row_1, v_sum_row_2);
+
+ // Add luma values
+ add_luma_dist_to_8_chroma_mod(y_dist, ss_x, ss_y, &u_sum_row, &v_sum_row);
+
+ // Get modifier and store result
+ if (blk_fw) {
+ u_sum_row =
+ average_4_4(u_sum_row, &mul, strength, rounding, blk_fw[0], blk_fw[1]);
+ v_sum_row =
+ average_4_4(v_sum_row, &mul, strength, rounding, blk_fw[0], blk_fw[1]);
+ } else {
+ u_sum_row = average_8(u_sum_row, &mul, strength, rounding, weight);
+ v_sum_row = average_8(v_sum_row, &mul, strength, rounding, weight);
+ }
+
+ accumulate_and_store_8(u_sum_row, u_pre, u_count, u_accum);
+ accumulate_and_store_8(v_sum_row, v_pre, v_count, v_accum);
+}
+
+// Perform temporal filter for the chroma components.
+static void vp9_apply_temporal_filter_chroma(
+ const uint8_t *y_src, int y_src_stride, const uint8_t *y_pre,
+ int y_pre_stride, const uint8_t *u_src, const uint8_t *v_src,
+ int uv_src_stride, const uint8_t *u_pre, const uint8_t *v_pre,
+ int uv_pre_stride, unsigned int block_width, unsigned int block_height,
+ int ss_x, int ss_y, int strength, const int *blk_fw, int use_whole_blk,
+ uint32_t *u_accum, uint16_t *u_count, uint32_t *v_accum, uint16_t *v_count,
+ const uint16_t *y_dist, const uint16_t *u_dist, const uint16_t *v_dist) {
+ const unsigned int uv_width = block_width >> ss_x,
+ uv_height = block_height >> ss_y;
+
+ unsigned int blk_col = 0, uv_blk_col = 0;
+ const unsigned int uv_blk_col_step = 8, blk_col_step = 8 << ss_x;
+ const unsigned int uv_mid_width = uv_width >> 1,
+ uv_last_width = uv_width - uv_blk_col_step;
+ int top_weight = blk_fw[0],
+ bottom_weight = use_whole_blk ? blk_fw[0] : blk_fw[2];
+ const int16_t *const *neighbors;
+
+ if (uv_width == 8) {
+ // Special Case: We are subsampling in x direction on a 16x16 block. Since
+ // we are operating on a row of 8 chroma pixels, we can't use the usual
+ // left-middle-right pattern.
+ assert(ss_x);
+
+ if (ss_y) {
+ neighbors = CHROMA_DOUBLE_SS_SINGLE_COLUMN_NEIGHBORS;
+ } else {
+ neighbors = CHROMA_SINGLE_SS_SINGLE_COLUMN_NEIGHBORS;
+ }
+
+ if (use_whole_blk) {
+ vp9_apply_temporal_filter_chroma_8(
+ y_src + blk_col, y_src_stride, y_pre + blk_col, y_pre_stride,
+ u_src + uv_blk_col, v_src + uv_blk_col, uv_src_stride,
+ u_pre + uv_blk_col, v_pre + uv_blk_col, uv_pre_stride, uv_width,
+ uv_height, ss_x, ss_y, strength, u_accum + uv_blk_col,
+ u_count + uv_blk_col, v_accum + uv_blk_col, v_count + uv_blk_col,
+ y_dist + blk_col, u_dist + uv_blk_col, v_dist + uv_blk_col, neighbors,
+ top_weight, bottom_weight, NULL);
+ } else {
+ vp9_apply_temporal_filter_chroma_8(
+ y_src + blk_col, y_src_stride, y_pre + blk_col, y_pre_stride,
+ u_src + uv_blk_col, v_src + uv_blk_col, uv_src_stride,
+ u_pre + uv_blk_col, v_pre + uv_blk_col, uv_pre_stride, uv_width,
+ uv_height, ss_x, ss_y, strength, u_accum + uv_blk_col,
+ u_count + uv_blk_col, v_accum + uv_blk_col, v_count + uv_blk_col,
+ y_dist + blk_col, u_dist + uv_blk_col, v_dist + uv_blk_col, neighbors,
+ 0, 0, blk_fw);
+ }
+
+ return;
+ }
+
+ // Left
+ if (ss_x && ss_y) {
+ neighbors = CHROMA_DOUBLE_SS_LEFT_COLUMN_NEIGHBORS;
+ } else if (ss_x || ss_y) {
+ neighbors = CHROMA_SINGLE_SS_LEFT_COLUMN_NEIGHBORS;
+ } else {
+ neighbors = CHROMA_NO_SS_LEFT_COLUMN_NEIGHBORS;
+ }
+
+ vp9_apply_temporal_filter_chroma_8(
+ y_src + blk_col, y_src_stride, y_pre + blk_col, y_pre_stride,
+ u_src + uv_blk_col, v_src + uv_blk_col, uv_src_stride, u_pre + uv_blk_col,
+ v_pre + uv_blk_col, uv_pre_stride, uv_width, uv_height, ss_x, ss_y,
+ strength, u_accum + uv_blk_col, u_count + uv_blk_col,
+ v_accum + uv_blk_col, v_count + uv_blk_col, y_dist + blk_col,
+ u_dist + uv_blk_col, v_dist + uv_blk_col, neighbors, top_weight,
+ bottom_weight, NULL);
+
+ blk_col += blk_col_step;
+ uv_blk_col += uv_blk_col_step;
+
+ // Middle First
+ if (ss_x && ss_y) {
+ neighbors = CHROMA_DOUBLE_SS_MIDDLE_COLUMN_NEIGHBORS;
+ } else if (ss_x || ss_y) {
+ neighbors = CHROMA_SINGLE_SS_MIDDLE_COLUMN_NEIGHBORS;
+ } else {
+ neighbors = CHROMA_NO_SS_MIDDLE_COLUMN_NEIGHBORS;
+ }
+
+ for (; uv_blk_col < uv_mid_width;
+ blk_col += blk_col_step, uv_blk_col += uv_blk_col_step) {
+ vp9_apply_temporal_filter_chroma_8(
+ y_src + blk_col, y_src_stride, y_pre + blk_col, y_pre_stride,
+ u_src + uv_blk_col, v_src + uv_blk_col, uv_src_stride,
+ u_pre + uv_blk_col, v_pre + uv_blk_col, uv_pre_stride, uv_width,
+ uv_height, ss_x, ss_y, strength, u_accum + uv_blk_col,
+ u_count + uv_blk_col, v_accum + uv_blk_col, v_count + uv_blk_col,
+ y_dist + blk_col, u_dist + uv_blk_col, v_dist + uv_blk_col, neighbors,
+ top_weight, bottom_weight, NULL);
+ }
+
+ if (!use_whole_blk) {
+ top_weight = blk_fw[1];
+ bottom_weight = blk_fw[3];
+ }
+
+ // Middle Second
+ for (; uv_blk_col < uv_last_width;
+ blk_col += blk_col_step, uv_blk_col += uv_blk_col_step) {
+ vp9_apply_temporal_filter_chroma_8(
+ y_src + blk_col, y_src_stride, y_pre + blk_col, y_pre_stride,
+ u_src + uv_blk_col, v_src + uv_blk_col, uv_src_stride,
+ u_pre + uv_blk_col, v_pre + uv_blk_col, uv_pre_stride, uv_width,
+ uv_height, ss_x, ss_y, strength, u_accum + uv_blk_col,
+ u_count + uv_blk_col, v_accum + uv_blk_col, v_count + uv_blk_col,
+ y_dist + blk_col, u_dist + uv_blk_col, v_dist + uv_blk_col, neighbors,
+ top_weight, bottom_weight, NULL);
+ }
+
+ // Right
+ if (ss_x && ss_y) {
+ neighbors = CHROMA_DOUBLE_SS_RIGHT_COLUMN_NEIGHBORS;
+ } else if (ss_x || ss_y) {
+ neighbors = CHROMA_SINGLE_SS_RIGHT_COLUMN_NEIGHBORS;
+ } else {
+ neighbors = CHROMA_NO_SS_RIGHT_COLUMN_NEIGHBORS;
+ }
+
+ vp9_apply_temporal_filter_chroma_8(
+ y_src + blk_col, y_src_stride, y_pre + blk_col, y_pre_stride,
+ u_src + uv_blk_col, v_src + uv_blk_col, uv_src_stride, u_pre + uv_blk_col,
+ v_pre + uv_blk_col, uv_pre_stride, uv_width, uv_height, ss_x, ss_y,
+ strength, u_accum + uv_blk_col, u_count + uv_blk_col,
+ v_accum + uv_blk_col, v_count + uv_blk_col, y_dist + blk_col,
+ u_dist + uv_blk_col, v_dist + uv_blk_col, neighbors, top_weight,
+ bottom_weight, NULL);
+}
+
+void vp9_apply_temporal_filter_sse4_1(
+ const uint8_t *y_src, int y_src_stride, const uint8_t *y_pre,
+ int y_pre_stride, const uint8_t *u_src, const uint8_t *v_src,
+ int uv_src_stride, const uint8_t *u_pre, const uint8_t *v_pre,
+ int uv_pre_stride, unsigned int block_width, unsigned int block_height,
+ int ss_x, int ss_y, int strength, const int *const blk_fw,
+ int use_whole_blk, uint32_t *y_accum, uint16_t *y_count, uint32_t *u_accum,
+ uint16_t *u_count, uint32_t *v_accum, uint16_t *v_count) {
+ const unsigned int chroma_height = block_height >> ss_y,
+ chroma_width = block_width >> ss_x;
+
+ DECLARE_ALIGNED(16, uint16_t, y_dist[BH * DIST_STRIDE]) = { 0 };
+ DECLARE_ALIGNED(16, uint16_t, u_dist[BH * DIST_STRIDE]) = { 0 };
+ DECLARE_ALIGNED(16, uint16_t, v_dist[BH * DIST_STRIDE]) = { 0 };
+ const int *blk_fw_ptr = blk_fw;
+
+ uint16_t *y_dist_ptr = y_dist + 1, *u_dist_ptr = u_dist + 1,
+ *v_dist_ptr = v_dist + 1;
+ const uint8_t *y_src_ptr = y_src, *u_src_ptr = u_src, *v_src_ptr = v_src;
+ const uint8_t *y_pre_ptr = y_pre, *u_pre_ptr = u_pre, *v_pre_ptr = v_pre;
+
+ assert(block_width <= BW && "block width too large");
+ assert(block_height <= BH && "block height too large");
+ assert(block_width % 16 == 0 && "block width must be multiple of 16");
+ assert(block_height % 2 == 0 && "block height must be even");
+ assert((ss_x == 0 || ss_x == 1) && (ss_y == 0 || ss_y == 1) &&
+ "invalid chroma subsampling");
+ assert(strength >= 0 && strength <= 6 && "invalid temporal filter strength");
+ assert(blk_fw[0] >= 0 && "filter weight must be positive");
+ assert(
+ (use_whole_blk || (blk_fw[1] >= 0 && blk_fw[2] >= 0 && blk_fw[3] >= 0)) &&
+ "subblock filter weight must be positive");
+ assert(blk_fw[0] <= 2 && "sublock filter weight must be less than 2");
+ assert(
+ (use_whole_blk || (blk_fw[1] <= 2 && blk_fw[2] <= 2 && blk_fw[3] <= 2)) &&
+ "subblock filter weight must be less than 2");
+
+ // Precompute the difference sqaured
+ for (unsigned int row = 0; row < block_height; row++) {
+ for (unsigned int blk_col = 0; blk_col < block_width; blk_col += 16) {
+ store_dist_16(y_src_ptr + blk_col, y_pre_ptr + blk_col,
+ y_dist_ptr + blk_col);
+ }
+ y_src_ptr += y_src_stride;
+ y_pre_ptr += y_pre_stride;
+ y_dist_ptr += DIST_STRIDE;
+ }
+
+ for (unsigned int row = 0; row < chroma_height; row++) {
+ for (unsigned int blk_col = 0; blk_col < chroma_width; blk_col += 8) {
+ store_dist_8(u_src_ptr + blk_col, u_pre_ptr + blk_col,
+ u_dist_ptr + blk_col);
+ store_dist_8(v_src_ptr + blk_col, v_pre_ptr + blk_col,
+ v_dist_ptr + blk_col);
+ }
+
+ u_src_ptr += uv_src_stride;
+ u_pre_ptr += uv_pre_stride;
+ u_dist_ptr += DIST_STRIDE;
+ v_src_ptr += uv_src_stride;
+ v_pre_ptr += uv_pre_stride;
+ v_dist_ptr += DIST_STRIDE;
+ }
+
+ y_dist_ptr = y_dist + 1;
+ u_dist_ptr = u_dist + 1;
+ v_dist_ptr = v_dist + 1;
+
+ vp9_apply_temporal_filter_luma(
+ y_src, y_src_stride, y_pre, y_pre_stride, u_src, v_src, uv_src_stride,
+ u_pre, v_pre, uv_pre_stride, block_width, block_height, ss_x, ss_y,
+ strength, blk_fw_ptr, use_whole_blk, y_accum, y_count, y_dist_ptr,
+ u_dist_ptr, v_dist_ptr);
+
+ vp9_apply_temporal_filter_chroma(
+ y_src, y_src_stride, y_pre, y_pre_stride, u_src, v_src, uv_src_stride,
+ u_pre, v_pre, uv_pre_stride, block_width, block_height, ss_x, ss_y,
+ strength, blk_fw_ptr, use_whole_blk, u_accum, u_count, v_accum, v_count,
+ y_dist_ptr, u_dist_ptr, v_dist_ptr);
+}
projects / platform / upstream / libvpx.git / commitdiff