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Unified Diff: source/libvpx/vpx_dsp/x86/variance_sse2.c

Issue 1162573005: libvpx: Pull from upstream (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/libvpx.git@master
Patch Set: Created 5 years, 7 months ago
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Index: source/libvpx/vpx_dsp/x86/variance_sse2.c
diff --git a/source/libvpx/vpx_dsp/x86/variance_sse2.c b/source/libvpx/vpx_dsp/x86/variance_sse2.c
new file mode 100644
index 0000000000000000000000000000000000000000..6256bc53621457b3863e34781284fa659e35ec7a
--- /dev/null
+++ b/source/libvpx/vpx_dsp/x86/variance_sse2.c
@@ -0,0 +1,309 @@
+/*
+ * Copyright (c) 2010 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 <emmintrin.h> // SSE2
+
+#include "./vpx_config.h"
+#include "./vpx_dsp_rtcd.h"
+
+#include "vpx_ports/mem.h"
+
+typedef void (*getNxMvar_fn_t) (const unsigned char *src, int src_stride,
+ const unsigned char *ref, int ref_stride,
+ unsigned int *sse, int *sum);
+
+unsigned int vpx_get_mb_ss_sse2(const int16_t *src) {
+ __m128i vsum = _mm_setzero_si128();
+ int i;
+
+ for (i = 0; i < 32; ++i) {
+ const __m128i v = _mm_loadu_si128((const __m128i *)src);
+ vsum = _mm_add_epi32(vsum, _mm_madd_epi16(v, v));
+ src += 8;
+ }
+
+ vsum = _mm_add_epi32(vsum, _mm_srli_si128(vsum, 8));
+ vsum = _mm_add_epi32(vsum, _mm_srli_si128(vsum, 4));
+ return _mm_cvtsi128_si32(vsum);
+}
+
+#define READ64(p, stride, i) \
+ _mm_unpacklo_epi8(_mm_cvtsi32_si128(*(const uint32_t *)(p + i * stride)), \
+ _mm_cvtsi32_si128(*(const uint32_t *)(p + (i + 1) * stride)))
+
+static void get4x4var_sse2(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride,
+ unsigned int *sse, int *sum) {
+ const __m128i zero = _mm_setzero_si128();
+ const __m128i src0 = _mm_unpacklo_epi8(READ64(src, src_stride, 0), zero);
+ const __m128i src1 = _mm_unpacklo_epi8(READ64(src, src_stride, 2), zero);
+ const __m128i ref0 = _mm_unpacklo_epi8(READ64(ref, ref_stride, 0), zero);
+ const __m128i ref1 = _mm_unpacklo_epi8(READ64(ref, ref_stride, 2), zero);
+ const __m128i diff0 = _mm_sub_epi16(src0, ref0);
+ const __m128i diff1 = _mm_sub_epi16(src1, ref1);
+
+ // sum
+ __m128i vsum = _mm_add_epi16(diff0, diff1);
+ vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 8));
+ vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 4));
+ vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 2));
+ *sum = (int16_t)_mm_extract_epi16(vsum, 0);
+
+ // sse
+ vsum = _mm_add_epi32(_mm_madd_epi16(diff0, diff0),
+ _mm_madd_epi16(diff1, diff1));
+ vsum = _mm_add_epi32(vsum, _mm_srli_si128(vsum, 8));
+ vsum = _mm_add_epi32(vsum, _mm_srli_si128(vsum, 4));
+ *sse = _mm_cvtsi128_si32(vsum);
+}
+
+void vpx_get8x8var_sse2(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride,
+ unsigned int *sse, int *sum) {
+ const __m128i zero = _mm_setzero_si128();
+ __m128i vsum = _mm_setzero_si128();
+ __m128i vsse = _mm_setzero_si128();
+ int i;
+
+ for (i = 0; i < 8; i += 2) {
+ const __m128i src0 = _mm_unpacklo_epi8(_mm_loadl_epi64(
+ (const __m128i *)(src + i * src_stride)), zero);
+ const __m128i ref0 = _mm_unpacklo_epi8(_mm_loadl_epi64(
+ (const __m128i *)(ref + i * ref_stride)), zero);
+ const __m128i diff0 = _mm_sub_epi16(src0, ref0);
+
+ const __m128i src1 = _mm_unpacklo_epi8(_mm_loadl_epi64(
+ (const __m128i *)(src + (i + 1) * src_stride)), zero);
+ const __m128i ref1 = _mm_unpacklo_epi8(_mm_loadl_epi64(
+ (const __m128i *)(ref + (i + 1) * ref_stride)), zero);
+ const __m128i diff1 = _mm_sub_epi16(src1, ref1);
+
+ vsum = _mm_add_epi16(vsum, diff0);
+ vsum = _mm_add_epi16(vsum, diff1);
+ vsse = _mm_add_epi32(vsse, _mm_madd_epi16(diff0, diff0));
+ vsse = _mm_add_epi32(vsse, _mm_madd_epi16(diff1, diff1));
+ }
+
+ // sum
+ vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 8));
+ vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 4));
+ vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 2));
+ *sum = (int16_t)_mm_extract_epi16(vsum, 0);
+
+ // sse
+ vsse = _mm_add_epi32(vsse, _mm_srli_si128(vsse, 8));
+ vsse = _mm_add_epi32(vsse, _mm_srli_si128(vsse, 4));
+ *sse = _mm_cvtsi128_si32(vsse);
+}
+
+void vpx_get16x16var_sse2(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride,
+ unsigned int *sse, int *sum) {
+ const __m128i zero = _mm_setzero_si128();
+ __m128i vsum = _mm_setzero_si128();
+ __m128i vsse = _mm_setzero_si128();
+ int i;
+
+ for (i = 0; i < 16; ++i) {
+ const __m128i s = _mm_loadu_si128((const __m128i *)src);
+ const __m128i r = _mm_loadu_si128((const __m128i *)ref);
+
+ const __m128i src0 = _mm_unpacklo_epi8(s, zero);
+ const __m128i ref0 = _mm_unpacklo_epi8(r, zero);
+ const __m128i diff0 = _mm_sub_epi16(src0, ref0);
+
+ const __m128i src1 = _mm_unpackhi_epi8(s, zero);
+ const __m128i ref1 = _mm_unpackhi_epi8(r, zero);
+ const __m128i diff1 = _mm_sub_epi16(src1, ref1);
+
+ vsum = _mm_add_epi16(vsum, diff0);
+ vsum = _mm_add_epi16(vsum, diff1);
+ vsse = _mm_add_epi32(vsse, _mm_madd_epi16(diff0, diff0));
+ vsse = _mm_add_epi32(vsse, _mm_madd_epi16(diff1, diff1));
+
+ src += src_stride;
+ ref += ref_stride;
+ }
+
+ // sum
+ vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 8));
+ vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 4));
+ *sum = (int16_t)_mm_extract_epi16(vsum, 0) +
+ (int16_t)_mm_extract_epi16(vsum, 1);
+
+ // sse
+ vsse = _mm_add_epi32(vsse, _mm_srli_si128(vsse, 8));
+ vsse = _mm_add_epi32(vsse, _mm_srli_si128(vsse, 4));
+ *sse = _mm_cvtsi128_si32(vsse);
+}
+
+
+static void variance_sse2(const unsigned char *src, int src_stride,
+ const unsigned char *ref, int ref_stride,
+ int w, int h, unsigned int *sse, int *sum,
+ getNxMvar_fn_t var_fn, int block_size) {
+ int i, j;
+
+ *sse = 0;
+ *sum = 0;
+
+ for (i = 0; i < h; i += block_size) {
+ for (j = 0; j < w; j += block_size) {
+ unsigned int sse0;
+ int sum0;
+ var_fn(src + src_stride * i + j, src_stride,
+ ref + ref_stride * i + j, ref_stride, &sse0, &sum0);
+ *sse += sse0;
+ *sum += sum0;
+ }
+ }
+}
+
+unsigned int vpx_variance4x4_sse2(const unsigned char *src, int src_stride,
+ const unsigned char *ref, int ref_stride,
+ unsigned int *sse) {
+ int sum;
+ get4x4var_sse2(src, src_stride, ref, ref_stride, sse, &sum);
+ return *sse - (((unsigned int)sum * sum) >> 4);
+}
+
+unsigned int vpx_variance8x4_sse2(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride,
+ unsigned int *sse) {
+ int sum;
+ variance_sse2(src, src_stride, ref, ref_stride, 8, 4,
+ sse, &sum, get4x4var_sse2, 4);
+ return *sse - (((unsigned int)sum * sum) >> 5);
+}
+
+unsigned int vpx_variance4x8_sse2(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride,
+ unsigned int *sse) {
+ int sum;
+ variance_sse2(src, src_stride, ref, ref_stride, 4, 8,
+ sse, &sum, get4x4var_sse2, 4);
+ return *sse - (((unsigned int)sum * sum) >> 5);
+}
+
+unsigned int vpx_variance8x8_sse2(const unsigned char *src, int src_stride,
+ const unsigned char *ref, int ref_stride,
+ unsigned int *sse) {
+ int sum;
+ vpx_get8x8var_sse2(src, src_stride, ref, ref_stride, sse, &sum);
+ return *sse - (((unsigned int)sum * sum) >> 6);
+}
+
+unsigned int vpx_variance16x8_sse2(const unsigned char *src, int src_stride,
+ const unsigned char *ref, int ref_stride,
+ unsigned int *sse) {
+ int sum;
+ variance_sse2(src, src_stride, ref, ref_stride, 16, 8,
+ sse, &sum, vpx_get8x8var_sse2, 8);
+ return *sse - (((unsigned int)sum * sum) >> 7);
+}
+
+unsigned int vpx_variance8x16_sse2(const unsigned char *src, int src_stride,
+ const unsigned char *ref, int ref_stride,
+ unsigned int *sse) {
+ int sum;
+ variance_sse2(src, src_stride, ref, ref_stride, 8, 16,
+ sse, &sum, vpx_get8x8var_sse2, 8);
+ return *sse - (((unsigned int)sum * sum) >> 7);
+}
+
+unsigned int vpx_variance16x16_sse2(const unsigned char *src, int src_stride,
+ const unsigned char *ref, int ref_stride,
+ unsigned int *sse) {
+ int sum;
+ vpx_get16x16var_sse2(src, src_stride, ref, ref_stride, sse, &sum);
+ return *sse - (((unsigned int)sum * sum) >> 8);
+}
+
+unsigned int vpx_variance32x32_sse2(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride,
+ unsigned int *sse) {
+ int sum;
+ variance_sse2(src, src_stride, ref, ref_stride, 32, 32,
+ sse, &sum, vpx_get16x16var_sse2, 16);
+ return *sse - (((int64_t)sum * sum) >> 10);
+}
+
+unsigned int vpx_variance32x16_sse2(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride,
+ unsigned int *sse) {
+ int sum;
+ variance_sse2(src, src_stride, ref, ref_stride, 32, 16,
+ sse, &sum, vpx_get16x16var_sse2, 16);
+ return *sse - (((int64_t)sum * sum) >> 9);
+}
+
+unsigned int vpx_variance16x32_sse2(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride,
+ unsigned int *sse) {
+ int sum;
+ variance_sse2(src, src_stride, ref, ref_stride, 16, 32,
+ sse, &sum, vpx_get16x16var_sse2, 16);
+ return *sse - (((int64_t)sum * sum) >> 9);
+}
+
+unsigned int vpx_variance64x64_sse2(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride,
+ unsigned int *sse) {
+ int sum;
+ variance_sse2(src, src_stride, ref, ref_stride, 64, 64,
+ sse, &sum, vpx_get16x16var_sse2, 16);
+ return *sse - (((int64_t)sum * sum) >> 12);
+}
+
+unsigned int vpx_variance64x32_sse2(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride,
+ unsigned int *sse) {
+ int sum;
+ variance_sse2(src, src_stride, ref, ref_stride, 64, 32,
+ sse, &sum, vpx_get16x16var_sse2, 16);
+ return *sse - (((int64_t)sum * sum) >> 11);
+}
+
+unsigned int vpx_variance32x64_sse2(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride,
+ unsigned int *sse) {
+ int sum;
+ variance_sse2(src, src_stride, ref, ref_stride, 32, 64,
+ sse, &sum, vpx_get16x16var_sse2, 16);
+ return *sse - (((int64_t)sum * sum) >> 11);
+}
+
+unsigned int vpx_mse8x8_sse2(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride,
+ unsigned int *sse) {
+ vpx_variance8x8_sse2(src, src_stride, ref, ref_stride, sse);
+ return *sse;
+}
+
+unsigned int vpx_mse8x16_sse2(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride,
+ unsigned int *sse) {
+ vpx_variance8x16_sse2(src, src_stride, ref, ref_stride, sse);
+ return *sse;
+}
+
+unsigned int vpx_mse16x8_sse2(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride,
+ unsigned int *sse) {
+ vpx_variance16x8_sse2(src, src_stride, ref, ref_stride, sse);
+ return *sse;
+}
+
+unsigned int vpx_mse16x16_sse2(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride,
+ unsigned int *sse) {
+ vpx_variance16x16_sse2(src, src_stride, ref, ref_stride, sse);
+ return *sse;
+}
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