ref: 632fe8286a41d52de23ba3561219c6e9370012c0
parent: b0f1ae147589ba23758d7ad8c913f96b63424bd8
author: Scott LaVarnway <slavarnway@google.com>
date: Tue Jul 25 09:26:46 EDT 2017
vpxdsp: variance_impl_avx2.c cleanup BUG=webm:1404 Change-Id: I8d8498009e5ef7bf1137e4ff16ec81738a020b02
--- a/vpx_dsp/x86/variance_impl_avx2.c
+++ b/vpx_dsp/x86/variance_impl_avx2.c
@@ -40,9 +40,9 @@
__m256i src, src_expand_low, src_expand_high, ref, ref_expand_low;
__m256i ref_expand_high, madd_low, madd_high;
unsigned int i, src_2strides, ref_2strides;
- __m256i zero_reg = _mm256_set1_epi16(0);
- __m256i sum_ref_src = _mm256_set1_epi16(0);
- __m256i madd_ref_src = _mm256_set1_epi16(0);
+ __m256i zero_reg = _mm256_setzero_si256();
+ __m256i sum_ref_src = _mm256_setzero_si256();
+ __m256i madd_ref_src = _mm256_setzero_si256();
// processing two strides in a 256 bit register reducing the number
// of loop stride by half (comparing to the sse2 code)
@@ -146,9 +146,9 @@
__m256i src, src_expand_low, src_expand_high, ref, ref_expand_low;
__m256i ref_expand_high, madd_low, madd_high;
unsigned int i;
- __m256i zero_reg = _mm256_set1_epi16(0);
- __m256i sum_ref_src = _mm256_set1_epi16(0);
- __m256i madd_ref_src = _mm256_set1_epi16(0);
+ __m256i zero_reg = _mm256_setzero_si256();
+ __m256i sum_ref_src = _mm256_setzero_si256();
+ __m256i madd_ref_src = _mm256_setzero_si256();
// processing 32 elements in parallel
for (i = 0; i < 16; i++) {@@ -242,24 +242,6 @@
exp_src_lo = _mm256_srai_epi16(exp_src_lo, 4); \
exp_src_hi = _mm256_srai_epi16(exp_src_hi, 4);
-#define MERGE_WITH_SRC(src_reg, reg) \
- exp_src_lo = _mm256_unpacklo_epi8(src_reg, reg); \
- exp_src_hi = _mm256_unpackhi_epi8(src_reg, reg);
-
-#define LOAD_SRC_DST \
- /* load source and destination */ \
- src_reg = _mm256_loadu_si256((__m256i const *)(src)); \
- dst_reg = _mm256_loadu_si256((__m256i const *)(dst));
-
-#define AVG_NEXT_SRC(src_reg, size_stride) \
- src_next_reg = _mm256_loadu_si256((__m256i const *)(src + size_stride)); \
- /* average between current and next stride source */ \
- src_reg = _mm256_avg_epu8(src_reg, src_next_reg);
-
-#define MERGE_NEXT_SRC(src_reg, size_stride) \
- src_next_reg = _mm256_loadu_si256((__m256i const *)(src + size_stride)); \
- MERGE_WITH_SRC(src_reg, src_next_reg)
-
#define CALC_SUM_SSE_INSIDE_LOOP \
/* expand each byte to 2 bytes */ \
exp_dst_lo = _mm256_unpacklo_epi8(dst_reg, zero_reg); \
@@ -268,13 +250,13 @@
exp_src_lo = _mm256_sub_epi16(exp_src_lo, exp_dst_lo); \
exp_src_hi = _mm256_sub_epi16(exp_src_hi, exp_dst_hi); \
/* caculate sum */ \
- sum_reg = _mm256_add_epi16(sum_reg, exp_src_lo); \
+ *sum_reg = _mm256_add_epi16(*sum_reg, exp_src_lo); \
exp_src_lo = _mm256_madd_epi16(exp_src_lo, exp_src_lo); \
- sum_reg = _mm256_add_epi16(sum_reg, exp_src_hi); \
+ *sum_reg = _mm256_add_epi16(*sum_reg, exp_src_hi); \
exp_src_hi = _mm256_madd_epi16(exp_src_hi, exp_src_hi); \
/* calculate sse */ \
- sse_reg = _mm256_add_epi32(sse_reg, exp_src_lo); \
- sse_reg = _mm256_add_epi32(sse_reg, exp_src_hi);
+ *sse_reg = _mm256_add_epi32(*sse_reg, exp_src_lo); \
+ *sse_reg = _mm256_add_epi32(*sse_reg, exp_src_hi);
// final calculation to sum and sse
#define CALC_SUM_AND_SSE \
@@ -297,412 +279,380 @@
sum = _mm_cvtsi128_si32(_mm256_castsi256_si128(sum_reg)) + \
_mm_cvtsi128_si32(_mm256_extractf128_si256(sum_reg, 1));
-unsigned int vpx_sub_pixel_variance32xh_avx2(const uint8_t *src, int src_stride,
- int x_offset, int y_offset,
- const uint8_t *dst, int dst_stride,
- int height, unsigned int *sse) {- __m256i src_reg, dst_reg, exp_src_lo, exp_src_hi, exp_dst_lo, exp_dst_hi;
- __m256i sse_reg, sum_reg, sse_reg_hi, res_cmp, sum_reg_lo, sum_reg_hi;
- __m256i zero_reg;
- int i, sum;
- sum_reg = _mm256_set1_epi16(0);
- sse_reg = _mm256_set1_epi16(0);
- zero_reg = _mm256_set1_epi16(0);
-
- // x_offset = 0 and y_offset = 0
- if (x_offset == 0) {- if (y_offset == 0) {- for (i = 0; i < height; i++) {- LOAD_SRC_DST
- // expend each byte to 2 bytes
- MERGE_WITH_SRC(src_reg, zero_reg)
- CALC_SUM_SSE_INSIDE_LOOP
- src += src_stride;
- dst += dst_stride;
- }
- // x_offset = 0 and y_offset = 8
- } else if (y_offset == 8) {- __m256i src_next_reg;
- for (i = 0; i < height; i++) {- LOAD_SRC_DST
- AVG_NEXT_SRC(src_reg, src_stride)
- // expend each byte to 2 bytes
- MERGE_WITH_SRC(src_reg, zero_reg)
- CALC_SUM_SSE_INSIDE_LOOP
- src += src_stride;
- dst += dst_stride;
- }
- // x_offset = 0 and y_offset = bilin interpolation
+static INLINE void spv32_x0_y0(const uint8_t *src, int src_stride,
+ const uint8_t *dst, int dst_stride,
+ const uint8_t *sec, int sec_stride, int do_sec,
+ int height, __m256i *sum_reg, __m256i *sse_reg) {+ const __m256i zero_reg = _mm256_setzero_si256();
+ __m256i exp_src_lo, exp_src_hi, exp_dst_lo, exp_dst_hi;
+ int i;
+ for (i = 0; i < height; i++) {+ const __m256i dst_reg = _mm256_loadu_si256((__m256i const *)dst);
+ const __m256i src_reg = _mm256_loadu_si256((__m256i const *)src);
+ if (do_sec) {+ const __m256i sec_reg = _mm256_loadu_si256((__m256i const *)sec);
+ const __m256i avg_reg = _mm256_avg_epu8(src_reg, sec_reg);
+ exp_src_lo = _mm256_unpacklo_epi8(avg_reg, zero_reg);
+ exp_src_hi = _mm256_unpackhi_epi8(avg_reg, zero_reg);
+ sec += sec_stride;
} else {- __m256i filter, pw8, src_next_reg;
-
- y_offset <<= 5;
- filter = _mm256_load_si256(
- (__m256i const *)(bilinear_filters_avx2 + y_offset));
- pw8 = _mm256_set1_epi16(8);
- for (i = 0; i < height; i++) {- LOAD_SRC_DST
- MERGE_NEXT_SRC(src_reg, src_stride)
- FILTER_SRC(filter)
- CALC_SUM_SSE_INSIDE_LOOP
- src += src_stride;
- dst += dst_stride;
- }
+ exp_src_lo = _mm256_unpacklo_epi8(src_reg, zero_reg);
+ exp_src_hi = _mm256_unpackhi_epi8(src_reg, zero_reg);
}
- // x_offset = 8 and y_offset = 0
- } else if (x_offset == 8) {- if (y_offset == 0) {- __m256i src_next_reg;
- for (i = 0; i < height; i++) {- LOAD_SRC_DST
- AVG_NEXT_SRC(src_reg, 1)
- // expand each byte to 2 bytes
- MERGE_WITH_SRC(src_reg, zero_reg)
- CALC_SUM_SSE_INSIDE_LOOP
- src += src_stride;
- dst += dst_stride;
- }
- // x_offset = 8 and y_offset = 8
- } else if (y_offset == 8) {- __m256i src_next_reg, src_avg;
- // load source and another source starting from the next
- // following byte
- src_reg = _mm256_loadu_si256((__m256i const *)(src));
- AVG_NEXT_SRC(src_reg, 1)
- for (i = 0; i < height; i++) {- src_avg = src_reg;
- src += src_stride;
- LOAD_SRC_DST
- AVG_NEXT_SRC(src_reg, 1)
- // average between previous average to current average
- src_avg = _mm256_avg_epu8(src_avg, src_reg);
- // expand each byte to 2 bytes
- MERGE_WITH_SRC(src_avg, zero_reg)
- // save current source average
- CALC_SUM_SSE_INSIDE_LOOP
- dst += dst_stride;
- }
- // x_offset = 8 and y_offset = bilin interpolation
+ CALC_SUM_SSE_INSIDE_LOOP
+ src += src_stride;
+ dst += dst_stride;
+ }
+}
+
+// (x == 0, y == 8) or (x == 8, y == 0). sstep determines the direction.
+static INLINE void spv32_half_zero(const uint8_t *src, int src_stride,
+ const uint8_t *dst, int dst_stride,
+ const uint8_t *sec, int sec_stride,
+ int do_sec, int height, __m256i *sum_reg,
+ __m256i *sse_reg, int sstep) {+ const __m256i zero_reg = _mm256_setzero_si256();
+ __m256i exp_src_lo, exp_src_hi, exp_dst_lo, exp_dst_hi;
+ int i;
+ for (i = 0; i < height; i++) {+ const __m256i dst_reg = _mm256_loadu_si256((__m256i const *)dst);
+ const __m256i src_0 = _mm256_loadu_si256((__m256i const *)src);
+ const __m256i src_1 = _mm256_loadu_si256((__m256i const *)(src + sstep));
+ const __m256i src_avg = _mm256_avg_epu8(src_0, src_1);
+ if (do_sec) {+ const __m256i sec_reg = _mm256_loadu_si256((__m256i const *)sec);
+ const __m256i avg_reg = _mm256_avg_epu8(src_avg, sec_reg);
+ exp_src_lo = _mm256_unpacklo_epi8(avg_reg, zero_reg);
+ exp_src_hi = _mm256_unpackhi_epi8(avg_reg, zero_reg);
+ sec += sec_stride;
} else {- __m256i filter, pw8, src_next_reg, src_avg;
- y_offset <<= 5;
- filter = _mm256_load_si256(
- (__m256i const *)(bilinear_filters_avx2 + y_offset));
- pw8 = _mm256_set1_epi16(8);
- // load source and another source starting from the next
- // following byte
- src_reg = _mm256_loadu_si256((__m256i const *)(src));
- AVG_NEXT_SRC(src_reg, 1)
- for (i = 0; i < height; i++) {- // save current source average
- src_avg = src_reg;
- src += src_stride;
- LOAD_SRC_DST
- AVG_NEXT_SRC(src_reg, 1)
- MERGE_WITH_SRC(src_avg, src_reg)
- FILTER_SRC(filter)
- CALC_SUM_SSE_INSIDE_LOOP
- dst += dst_stride;
- }
+ exp_src_lo = _mm256_unpacklo_epi8(src_avg, zero_reg);
+ exp_src_hi = _mm256_unpackhi_epi8(src_avg, zero_reg);
}
- // x_offset = bilin interpolation and y_offset = 0
- } else {- if (y_offset == 0) {- __m256i filter, pw8, src_next_reg;
- x_offset <<= 5;
- filter = _mm256_load_si256(
- (__m256i const *)(bilinear_filters_avx2 + x_offset));
- pw8 = _mm256_set1_epi16(8);
- for (i = 0; i < height; i++) {- LOAD_SRC_DST
- MERGE_NEXT_SRC(src_reg, 1)
- FILTER_SRC(filter)
- CALC_SUM_SSE_INSIDE_LOOP
- src += src_stride;
- dst += dst_stride;
- }
- // x_offset = bilin interpolation and y_offset = 8
- } else if (y_offset == 8) {- __m256i filter, pw8, src_next_reg, src_pack;
- x_offset <<= 5;
- filter = _mm256_load_si256(
- (__m256i const *)(bilinear_filters_avx2 + x_offset));
- pw8 = _mm256_set1_epi16(8);
- src_reg = _mm256_loadu_si256((__m256i const *)(src));
- MERGE_NEXT_SRC(src_reg, 1)
- FILTER_SRC(filter)
- // convert each 16 bit to 8 bit to each low and high lane source
- src_pack = _mm256_packus_epi16(exp_src_lo, exp_src_hi);
- for (i = 0; i < height; i++) {- src += src_stride;
- LOAD_SRC_DST
- MERGE_NEXT_SRC(src_reg, 1)
- FILTER_SRC(filter)
- src_reg = _mm256_packus_epi16(exp_src_lo, exp_src_hi);
- // average between previous pack to the current
- src_pack = _mm256_avg_epu8(src_pack, src_reg);
- MERGE_WITH_SRC(src_pack, zero_reg)
- CALC_SUM_SSE_INSIDE_LOOP
- src_pack = src_reg;
- dst += dst_stride;
- }
- // x_offset = bilin interpolation and y_offset = bilin interpolation
+ CALC_SUM_SSE_INSIDE_LOOP
+ src += src_stride;
+ dst += dst_stride;
+ }
+}
+
+static INLINE void spv32_x0_y8(const uint8_t *src, int src_stride,
+ const uint8_t *dst, int dst_stride,
+ const uint8_t *sec, int sec_stride, int do_sec,
+ int height, __m256i *sum_reg, __m256i *sse_reg) {+ spv32_half_zero(src, src_stride, dst, dst_stride, sec, sec_stride, do_sec,
+ height, sum_reg, sse_reg, src_stride);
+}
+
+static INLINE void spv32_x8_y0(const uint8_t *src, int src_stride,
+ const uint8_t *dst, int dst_stride,
+ const uint8_t *sec, int sec_stride, int do_sec,
+ int height, __m256i *sum_reg, __m256i *sse_reg) {+ spv32_half_zero(src, src_stride, dst, dst_stride, sec, sec_stride, do_sec,
+ height, sum_reg, sse_reg, 1);
+}
+
+static INLINE void spv32_x8_y8(const uint8_t *src, int src_stride,
+ const uint8_t *dst, int dst_stride,
+ const uint8_t *sec, int sec_stride, int do_sec,
+ int height, __m256i *sum_reg, __m256i *sse_reg) {+ const __m256i zero_reg = _mm256_setzero_si256();
+ const __m256i src_a = _mm256_loadu_si256((__m256i const *)src);
+ const __m256i src_b = _mm256_loadu_si256((__m256i const *)(src + 1));
+ __m256i prev_src_avg = _mm256_avg_epu8(src_a, src_b);
+ __m256i exp_src_lo, exp_src_hi, exp_dst_lo, exp_dst_hi;
+ int i;
+ src += src_stride;
+ for (i = 0; i < height; i++) {+ const __m256i dst_reg = _mm256_loadu_si256((__m256i const *)dst);
+ const __m256i src_0 = _mm256_loadu_si256((__m256i const *)(src));
+ const __m256i src_1 = _mm256_loadu_si256((__m256i const *)(src + 1));
+ const __m256i src_avg = _mm256_avg_epu8(src_0, src_1);
+ const __m256i current_avg = _mm256_avg_epu8(prev_src_avg, src_avg);
+ prev_src_avg = src_avg;
+
+ if (do_sec) {+ const __m256i sec_reg = _mm256_loadu_si256((__m256i const *)sec);
+ const __m256i avg_reg = _mm256_avg_epu8(current_avg, sec_reg);
+ exp_src_lo = _mm256_unpacklo_epi8(avg_reg, zero_reg);
+ exp_src_hi = _mm256_unpackhi_epi8(avg_reg, zero_reg);
+ sec += sec_stride;
} else {- __m256i xfilter, yfilter, pw8, src_next_reg, src_pack;
- x_offset <<= 5;
- xfilter = _mm256_load_si256(
- (__m256i const *)(bilinear_filters_avx2 + x_offset));
- y_offset <<= 5;
- yfilter = _mm256_load_si256(
- (__m256i const *)(bilinear_filters_avx2 + y_offset));
- pw8 = _mm256_set1_epi16(8);
- // load source and another source starting from the next
- // following byte
- src_reg = _mm256_loadu_si256((__m256i const *)(src));
- MERGE_NEXT_SRC(src_reg, 1)
+ exp_src_lo = _mm256_unpacklo_epi8(current_avg, zero_reg);
+ exp_src_hi = _mm256_unpackhi_epi8(current_avg, zero_reg);
+ }
+ // save current source average
+ CALC_SUM_SSE_INSIDE_LOOP
+ dst += dst_stride;
+ src += src_stride;
+ }
+}
- FILTER_SRC(xfilter)
- // convert each 16 bit to 8 bit to each low and high lane source
- src_pack = _mm256_packus_epi16(exp_src_lo, exp_src_hi);
- for (i = 0; i < height; i++) {- src += src_stride;
- LOAD_SRC_DST
- MERGE_NEXT_SRC(src_reg, 1)
- FILTER_SRC(xfilter)
- src_reg = _mm256_packus_epi16(exp_src_lo, exp_src_hi);
- // merge previous pack to current pack source
- MERGE_WITH_SRC(src_pack, src_reg)
- // filter the source
- FILTER_SRC(yfilter)
- src_pack = src_reg;
- CALC_SUM_SSE_INSIDE_LOOP
- dst += dst_stride;
- }
+// (x == 0, y == bil) or (x == 8, y == bil). sstep determines the direction.
+static INLINE void spv32_bilin_zero(const uint8_t *src, int src_stride,
+ const uint8_t *dst, int dst_stride,
+ const uint8_t *sec, int sec_stride,
+ int do_sec, int height, __m256i *sum_reg,
+ __m256i *sse_reg, int offset, int sstep) {+ const __m256i zero_reg = _mm256_setzero_si256();
+ const __m256i pw8 = _mm256_set1_epi16(8);
+ const __m256i filter = _mm256_load_si256(
+ (__m256i const *)(bilinear_filters_avx2 + (offset << 5)));
+ __m256i exp_src_lo, exp_src_hi, exp_dst_lo, exp_dst_hi;
+ int i;
+ for (i = 0; i < height; i++) {+ const __m256i dst_reg = _mm256_loadu_si256((__m256i const *)dst);
+ const __m256i src_0 = _mm256_loadu_si256((__m256i const *)src);
+ const __m256i src_1 = _mm256_loadu_si256((__m256i const *)(src + sstep));
+ exp_src_lo = _mm256_unpacklo_epi8(src_0, src_1);
+ exp_src_hi = _mm256_unpackhi_epi8(src_0, src_1);
+
+ FILTER_SRC(filter)
+ if (do_sec) {+ const __m256i sec_reg = _mm256_loadu_si256((__m256i const *)sec);
+ const __m256i exp_src = _mm256_packus_epi16(exp_src_lo, exp_src_hi);
+ const __m256i avg_reg = _mm256_avg_epu8(exp_src, sec_reg);
+ sec += sec_stride;
+ exp_src_lo = _mm256_unpacklo_epi8(avg_reg, zero_reg);
+ exp_src_hi = _mm256_unpackhi_epi8(avg_reg, zero_reg);
}
+ CALC_SUM_SSE_INSIDE_LOOP
+ src += src_stride;
+ dst += dst_stride;
}
- CALC_SUM_AND_SSE
- return sum;
}
-unsigned int vpx_sub_pixel_avg_variance32xh_avx2(
- const uint8_t *src, int src_stride, int x_offset, int y_offset,
- const uint8_t *dst, int dst_stride, const uint8_t *sec, int sec_stride,
- int height, unsigned int *sse) {- __m256i sec_reg;
- __m256i src_reg, dst_reg, exp_src_lo, exp_src_hi, exp_dst_lo, exp_dst_hi;
- __m256i sse_reg, sum_reg, sse_reg_hi, res_cmp, sum_reg_lo, sum_reg_hi;
- __m256i zero_reg;
- int i, sum;
- sum_reg = _mm256_set1_epi16(0);
- sse_reg = _mm256_set1_epi16(0);
- zero_reg = _mm256_set1_epi16(0);
+static INLINE void spv32_x0_yb(const uint8_t *src, int src_stride,
+ const uint8_t *dst, int dst_stride,
+ const uint8_t *sec, int sec_stride, int do_sec,
+ int height, __m256i *sum_reg, __m256i *sse_reg,
+ int y_offset) {+ spv32_bilin_zero(src, src_stride, dst, dst_stride, sec, sec_stride, do_sec,
+ height, sum_reg, sse_reg, y_offset, src_stride);
+}
+static INLINE void spv32_xb_y0(const uint8_t *src, int src_stride,
+ const uint8_t *dst, int dst_stride,
+ const uint8_t *sec, int sec_stride, int do_sec,
+ int height, __m256i *sum_reg, __m256i *sse_reg,
+ int x_offset) {+ spv32_bilin_zero(src, src_stride, dst, dst_stride, sec, sec_stride, do_sec,
+ height, sum_reg, sse_reg, x_offset, 1);
+}
+
+static INLINE void spv32_x8_yb(const uint8_t *src, int src_stride,
+ const uint8_t *dst, int dst_stride,
+ const uint8_t *sec, int sec_stride, int do_sec,
+ int height, __m256i *sum_reg, __m256i *sse_reg,
+ int y_offset) {+ const __m256i zero_reg = _mm256_setzero_si256();
+ const __m256i pw8 = _mm256_set1_epi16(8);
+ const __m256i filter = _mm256_load_si256(
+ (__m256i const *)(bilinear_filters_avx2 + (y_offset << 5)));
+ const __m256i src_a = _mm256_loadu_si256((__m256i const *)src);
+ const __m256i src_b = _mm256_loadu_si256((__m256i const *)(src + 1));
+ __m256i prev_src_avg = _mm256_avg_epu8(src_a, src_b);
+ __m256i exp_src_lo, exp_src_hi, exp_dst_lo, exp_dst_hi;
+ int i;
+ src += src_stride;
+ for (i = 0; i < height; i++) {+ const __m256i dst_reg = _mm256_loadu_si256((__m256i const *)dst);
+ const __m256i src_0 = _mm256_loadu_si256((__m256i const *)src);
+ const __m256i src_1 = _mm256_loadu_si256((__m256i const *)(src + 1));
+ const __m256i src_avg = _mm256_avg_epu8(src_0, src_1);
+ exp_src_lo = _mm256_unpacklo_epi8(prev_src_avg, src_avg);
+ exp_src_hi = _mm256_unpackhi_epi8(prev_src_avg, src_avg);
+ prev_src_avg = src_avg;
+
+ FILTER_SRC(filter)
+ if (do_sec) {+ const __m256i sec_reg = _mm256_loadu_si256((__m256i const *)sec);
+ const __m256i exp_src_avg = _mm256_packus_epi16(exp_src_lo, exp_src_hi);
+ const __m256i avg_reg = _mm256_avg_epu8(exp_src_avg, sec_reg);
+ exp_src_lo = _mm256_unpacklo_epi8(avg_reg, zero_reg);
+ exp_src_hi = _mm256_unpackhi_epi8(avg_reg, zero_reg);
+ sec += sec_stride;
+ }
+ CALC_SUM_SSE_INSIDE_LOOP
+ dst += dst_stride;
+ src += src_stride;
+ }
+}
+
+static INLINE void spv32_xb_y8(const uint8_t *src, int src_stride,
+ const uint8_t *dst, int dst_stride,
+ const uint8_t *sec, int sec_stride, int do_sec,
+ int height, __m256i *sum_reg, __m256i *sse_reg,
+ int x_offset) {+ const __m256i zero_reg = _mm256_setzero_si256();
+ const __m256i pw8 = _mm256_set1_epi16(8);
+ const __m256i filter = _mm256_load_si256(
+ (__m256i const *)(bilinear_filters_avx2 + (x_offset << 5)));
+ const __m256i src_a = _mm256_loadu_si256((__m256i const *)src);
+ const __m256i src_b = _mm256_loadu_si256((__m256i const *)(src + 1));
+ __m256i exp_src_lo, exp_src_hi, exp_dst_lo, exp_dst_hi;
+ __m256i src_reg, src_pack;
+ int i;
+ exp_src_lo = _mm256_unpacklo_epi8(src_a, src_b);
+ exp_src_hi = _mm256_unpackhi_epi8(src_a, src_b);
+ FILTER_SRC(filter)
+ // convert each 16 bit to 8 bit to each low and high lane source
+ src_pack = _mm256_packus_epi16(exp_src_lo, exp_src_hi);
+
+ src += src_stride;
+ for (i = 0; i < height; i++) {+ const __m256i dst_reg = _mm256_loadu_si256((__m256i const *)dst);
+ const __m256i src_0 = _mm256_loadu_si256((__m256i const *)src);
+ const __m256i src_1 = _mm256_loadu_si256((__m256i const *)(src + 1));
+ exp_src_lo = _mm256_unpacklo_epi8(src_0, src_1);
+ exp_src_hi = _mm256_unpackhi_epi8(src_0, src_1);
+
+ FILTER_SRC(filter)
+
+ src_reg = _mm256_packus_epi16(exp_src_lo, exp_src_hi);
+ // average between previous pack to the current
+ src_pack = _mm256_avg_epu8(src_pack, src_reg);
+
+ if (do_sec) {+ const __m256i sec_reg = _mm256_loadu_si256((__m256i const *)sec);
+ const __m256i avg_pack = _mm256_avg_epu8(src_pack, sec_reg);
+ exp_src_lo = _mm256_unpacklo_epi8(avg_pack, zero_reg);
+ exp_src_hi = _mm256_unpackhi_epi8(avg_pack, zero_reg);
+ sec += sec_stride;
+ } else {+ exp_src_lo = _mm256_unpacklo_epi8(src_pack, zero_reg);
+ exp_src_hi = _mm256_unpackhi_epi8(src_pack, zero_reg);
+ }
+ CALC_SUM_SSE_INSIDE_LOOP
+ src_pack = src_reg;
+ dst += dst_stride;
+ src += src_stride;
+ }
+}
+
+static INLINE void spv32_xb_yb(const uint8_t *src, int src_stride,
+ const uint8_t *dst, int dst_stride,
+ const uint8_t *sec, int sec_stride, int do_sec,
+ int height, __m256i *sum_reg, __m256i *sse_reg,
+ int x_offset, int y_offset) {+ const __m256i zero_reg = _mm256_setzero_si256();
+ const __m256i pw8 = _mm256_set1_epi16(8);
+ const __m256i xfilter = _mm256_load_si256(
+ (__m256i const *)(bilinear_filters_avx2 + (x_offset << 5)));
+ const __m256i yfilter = _mm256_load_si256(
+ (__m256i const *)(bilinear_filters_avx2 + (y_offset << 5)));
+ const __m256i src_a = _mm256_loadu_si256((__m256i const *)src);
+ const __m256i src_b = _mm256_loadu_si256((__m256i const *)(src + 1));
+ __m256i exp_src_lo, exp_src_hi, exp_dst_lo, exp_dst_hi;
+ __m256i prev_src_pack, src_pack;
+ int i;
+ exp_src_lo = _mm256_unpacklo_epi8(src_a, src_b);
+ exp_src_hi = _mm256_unpackhi_epi8(src_a, src_b);
+ FILTER_SRC(xfilter)
+ // convert each 16 bit to 8 bit to each low and high lane source
+ prev_src_pack = _mm256_packus_epi16(exp_src_lo, exp_src_hi);
+ src += src_stride;
+
+ for (i = 0; i < height; i++) {+ const __m256i dst_reg = _mm256_loadu_si256((__m256i const *)dst);
+ const __m256i src_0 = _mm256_loadu_si256((__m256i const *)src);
+ const __m256i src_1 = _mm256_loadu_si256((__m256i const *)(src + 1));
+ exp_src_lo = _mm256_unpacklo_epi8(src_0, src_1);
+ exp_src_hi = _mm256_unpackhi_epi8(src_0, src_1);
+
+ FILTER_SRC(xfilter)
+ src_pack = _mm256_packus_epi16(exp_src_lo, exp_src_hi);
+
+ // merge previous pack to current pack source
+ exp_src_lo = _mm256_unpacklo_epi8(prev_src_pack, src_pack);
+ exp_src_hi = _mm256_unpackhi_epi8(prev_src_pack, src_pack);
+
+ FILTER_SRC(yfilter)
+ if (do_sec) {+ const __m256i sec_reg = _mm256_loadu_si256((__m256i const *)sec);
+ const __m256i exp_src = _mm256_packus_epi16(exp_src_lo, exp_src_hi);
+ const __m256i avg_reg = _mm256_avg_epu8(exp_src, sec_reg);
+ exp_src_lo = _mm256_unpacklo_epi8(avg_reg, zero_reg);
+ exp_src_hi = _mm256_unpackhi_epi8(avg_reg, zero_reg);
+ sec += sec_stride;
+ }
+
+ prev_src_pack = src_pack;
+
+ CALC_SUM_SSE_INSIDE_LOOP
+ dst += dst_stride;
+ src += src_stride;
+ }
+}
+
+static INLINE int sub_pix_var32xh(const uint8_t *src, int src_stride,
+ int x_offset, int y_offset,
+ const uint8_t *dst, int dst_stride,
+ const uint8_t *sec, int sec_stride,
+ int do_sec, int height, unsigned int *sse) {+ const __m256i zero_reg = _mm256_setzero_si256();
+ __m256i sum_reg = _mm256_setzero_si256();
+ __m256i sse_reg = _mm256_setzero_si256();
+ __m256i sse_reg_hi, res_cmp, sum_reg_lo, sum_reg_hi;
+ int sum;
// x_offset = 0 and y_offset = 0
if (x_offset == 0) { if (y_offset == 0) {- for (i = 0; i < height; i++) {- LOAD_SRC_DST
- sec_reg = _mm256_loadu_si256((__m256i const *)(sec));
- src_reg = _mm256_avg_epu8(src_reg, sec_reg);
- sec += sec_stride;
- // expend each byte to 2 bytes
- MERGE_WITH_SRC(src_reg, zero_reg)
- CALC_SUM_SSE_INSIDE_LOOP
- src += src_stride;
- dst += dst_stride;
- }
+ spv32_x0_y0(src, src_stride, dst, dst_stride, sec, sec_stride, do_sec,
+ height, &sum_reg, &sse_reg);
+ // x_offset = 0 and y_offset = 8
} else if (y_offset == 8) {- __m256i src_next_reg;
- for (i = 0; i < height; i++) {- LOAD_SRC_DST
- AVG_NEXT_SRC(src_reg, src_stride)
- sec_reg = _mm256_loadu_si256((__m256i const *)(sec));
- src_reg = _mm256_avg_epu8(src_reg, sec_reg);
- sec += sec_stride;
- // expend each byte to 2 bytes
- MERGE_WITH_SRC(src_reg, zero_reg)
- CALC_SUM_SSE_INSIDE_LOOP
- src += src_stride;
- dst += dst_stride;
- }
+ spv32_x0_y8(src, src_stride, dst, dst_stride, sec, sec_stride, do_sec,
+ height, &sum_reg, &sse_reg);
// x_offset = 0 and y_offset = bilin interpolation
} else {- __m256i filter, pw8, src_next_reg;
-
- y_offset <<= 5;
- filter = _mm256_load_si256(
- (__m256i const *)(bilinear_filters_avx2 + y_offset));
- pw8 = _mm256_set1_epi16(8);
- for (i = 0; i < height; i++) {- LOAD_SRC_DST
- MERGE_NEXT_SRC(src_reg, src_stride)
- FILTER_SRC(filter)
- src_reg = _mm256_packus_epi16(exp_src_lo, exp_src_hi);
- sec_reg = _mm256_loadu_si256((__m256i const *)(sec));
- src_reg = _mm256_avg_epu8(src_reg, sec_reg);
- sec += sec_stride;
- MERGE_WITH_SRC(src_reg, zero_reg)
- CALC_SUM_SSE_INSIDE_LOOP
- src += src_stride;
- dst += dst_stride;
- }
+ spv32_x0_yb(src, src_stride, dst, dst_stride, sec, sec_stride, do_sec,
+ height, &sum_reg, &sse_reg, y_offset);
}
// x_offset = 8 and y_offset = 0
} else if (x_offset == 8) { if (y_offset == 0) {- __m256i src_next_reg;
- for (i = 0; i < height; i++) {- LOAD_SRC_DST
- AVG_NEXT_SRC(src_reg, 1)
- sec_reg = _mm256_loadu_si256((__m256i const *)(sec));
- src_reg = _mm256_avg_epu8(src_reg, sec_reg);
- sec += sec_stride;
- // expand each byte to 2 bytes
- MERGE_WITH_SRC(src_reg, zero_reg)
- CALC_SUM_SSE_INSIDE_LOOP
- src += src_stride;
- dst += dst_stride;
- }
+ spv32_x8_y0(src, src_stride, dst, dst_stride, sec, sec_stride, do_sec,
+ height, &sum_reg, &sse_reg);
// x_offset = 8 and y_offset = 8
} else if (y_offset == 8) {- __m256i src_next_reg, src_avg;
- // load source and another source starting from the next
- // following byte
- src_reg = _mm256_loadu_si256((__m256i const *)(src));
- AVG_NEXT_SRC(src_reg, 1)
- for (i = 0; i < height; i++) {- // save current source average
- src_avg = src_reg;
- src += src_stride;
- LOAD_SRC_DST
- AVG_NEXT_SRC(src_reg, 1)
- // average between previous average to current average
- src_avg = _mm256_avg_epu8(src_avg, src_reg);
- sec_reg = _mm256_loadu_si256((__m256i const *)(sec));
- src_avg = _mm256_avg_epu8(src_avg, sec_reg);
- sec += sec_stride;
- // expand each byte to 2 bytes
- MERGE_WITH_SRC(src_avg, zero_reg)
- CALC_SUM_SSE_INSIDE_LOOP
- dst += dst_stride;
- }
+ spv32_x8_y8(src, src_stride, dst, dst_stride, sec, sec_stride, do_sec,
+ height, &sum_reg, &sse_reg);
// x_offset = 8 and y_offset = bilin interpolation
} else {- __m256i filter, pw8, src_next_reg, src_avg;
- y_offset <<= 5;
- filter = _mm256_load_si256(
- (__m256i const *)(bilinear_filters_avx2 + y_offset));
- pw8 = _mm256_set1_epi16(8);
- // load source and another source starting from the next
- // following byte
- src_reg = _mm256_loadu_si256((__m256i const *)(src));
- AVG_NEXT_SRC(src_reg, 1)
- for (i = 0; i < height; i++) {- // save current source average
- src_avg = src_reg;
- src += src_stride;
- LOAD_SRC_DST
- AVG_NEXT_SRC(src_reg, 1)
- MERGE_WITH_SRC(src_avg, src_reg)
- FILTER_SRC(filter)
- src_avg = _mm256_packus_epi16(exp_src_lo, exp_src_hi);
- sec_reg = _mm256_loadu_si256((__m256i const *)(sec));
- src_avg = _mm256_avg_epu8(src_avg, sec_reg);
- // expand each byte to 2 bytes
- MERGE_WITH_SRC(src_avg, zero_reg)
- sec += sec_stride;
- CALC_SUM_SSE_INSIDE_LOOP
- dst += dst_stride;
- }
+ spv32_x8_yb(src, src_stride, dst, dst_stride, sec, sec_stride, do_sec,
+ height, &sum_reg, &sse_reg, y_offset);
}
// x_offset = bilin interpolation and y_offset = 0
} else { if (y_offset == 0) {- __m256i filter, pw8, src_next_reg;
- x_offset <<= 5;
- filter = _mm256_load_si256(
- (__m256i const *)(bilinear_filters_avx2 + x_offset));
- pw8 = _mm256_set1_epi16(8);
- for (i = 0; i < height; i++) {- LOAD_SRC_DST
- MERGE_NEXT_SRC(src_reg, 1)
- FILTER_SRC(filter)
- src_reg = _mm256_packus_epi16(exp_src_lo, exp_src_hi);
- sec_reg = _mm256_loadu_si256((__m256i const *)(sec));
- src_reg = _mm256_avg_epu8(src_reg, sec_reg);
- MERGE_WITH_SRC(src_reg, zero_reg)
- sec += sec_stride;
- CALC_SUM_SSE_INSIDE_LOOP
- src += src_stride;
- dst += dst_stride;
- }
+ spv32_xb_y0(src, src_stride, dst, dst_stride, sec, sec_stride, do_sec,
+ height, &sum_reg, &sse_reg, x_offset);
// x_offset = bilin interpolation and y_offset = 8
} else if (y_offset == 8) {- __m256i filter, pw8, src_next_reg, src_pack;
- x_offset <<= 5;
- filter = _mm256_load_si256(
- (__m256i const *)(bilinear_filters_avx2 + x_offset));
- pw8 = _mm256_set1_epi16(8);
- src_reg = _mm256_loadu_si256((__m256i const *)(src));
- MERGE_NEXT_SRC(src_reg, 1)
- FILTER_SRC(filter)
- // convert each 16 bit to 8 bit to each low and high lane source
- src_pack = _mm256_packus_epi16(exp_src_lo, exp_src_hi);
- for (i = 0; i < height; i++) {- src += src_stride;
- LOAD_SRC_DST
- MERGE_NEXT_SRC(src_reg, 1)
- FILTER_SRC(filter)
- src_reg = _mm256_packus_epi16(exp_src_lo, exp_src_hi);
- // average between previous pack to the current
- src_pack = _mm256_avg_epu8(src_pack, src_reg);
- sec_reg = _mm256_loadu_si256((__m256i const *)(sec));
- src_pack = _mm256_avg_epu8(src_pack, sec_reg);
- sec += sec_stride;
- MERGE_WITH_SRC(src_pack, zero_reg)
- src_pack = src_reg;
- CALC_SUM_SSE_INSIDE_LOOP
- dst += dst_stride;
- }
+ spv32_xb_y8(src, src_stride, dst, dst_stride, sec, sec_stride, do_sec,
+ height, &sum_reg, &sse_reg, x_offset);
// x_offset = bilin interpolation and y_offset = bilin interpolation
} else {- __m256i xfilter, yfilter, pw8, src_next_reg, src_pack;
- x_offset <<= 5;
- xfilter = _mm256_load_si256(
- (__m256i const *)(bilinear_filters_avx2 + x_offset));
- y_offset <<= 5;
- yfilter = _mm256_load_si256(
- (__m256i const *)(bilinear_filters_avx2 + y_offset));
- pw8 = _mm256_set1_epi16(8);
- // load source and another source starting from the next
- // following byte
- src_reg = _mm256_loadu_si256((__m256i const *)(src));
- MERGE_NEXT_SRC(src_reg, 1)
-
- FILTER_SRC(xfilter)
- // convert each 16 bit to 8 bit to each low and high lane source
- src_pack = _mm256_packus_epi16(exp_src_lo, exp_src_hi);
- for (i = 0; i < height; i++) {- src += src_stride;
- LOAD_SRC_DST
- MERGE_NEXT_SRC(src_reg, 1)
- FILTER_SRC(xfilter)
- src_reg = _mm256_packus_epi16(exp_src_lo, exp_src_hi);
- // merge previous pack to current pack source
- MERGE_WITH_SRC(src_pack, src_reg)
- // filter the source
- FILTER_SRC(yfilter)
- src_pack = _mm256_packus_epi16(exp_src_lo, exp_src_hi);
- sec_reg = _mm256_loadu_si256((__m256i const *)(sec));
- src_pack = _mm256_avg_epu8(src_pack, sec_reg);
- MERGE_WITH_SRC(src_pack, zero_reg)
- src_pack = src_reg;
- sec += sec_stride;
- CALC_SUM_SSE_INSIDE_LOOP
- dst += dst_stride;
- }
+ spv32_xb_yb(src, src_stride, dst, dst_stride, sec, sec_stride, do_sec,
+ height, &sum_reg, &sse_reg, x_offset, y_offset);
}
}
CALC_SUM_AND_SSE
return sum;
+}
+
+unsigned int vpx_sub_pixel_variance32xh_avx2(const uint8_t *src, int src_stride,
+ int x_offset, int y_offset,
+ const uint8_t *dst, int dst_stride,
+ int height, unsigned int *sse) {+ return sub_pix_var32xh(src, src_stride, x_offset, y_offset, dst, dst_stride,
+ NULL, 0, 0, height, sse);
+}
+
+unsigned int vpx_sub_pixel_avg_variance32xh_avx2(
+ const uint8_t *src, int src_stride, int x_offset, int y_offset,
+ const uint8_t *dst, int dst_stride, const uint8_t *sec, int sec_stride,
+ int height, unsigned int *sse) {+ return sub_pix_var32xh(src, src_stride, x_offset, y_offset, dst, dst_stride,
+ sec, sec_stride, 1, height, sse);
}