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Unified Diff: third_party/libwebp/dsp/yuv_sse2.c

Issue 2651883004: libwebp-0.6.0-rc1 (Closed)
Patch Set: Created 3 years, 11 months ago
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Index: third_party/libwebp/dsp/yuv_sse2.c
diff --git a/third_party/libwebp/dsp/yuv_sse2.c b/third_party/libwebp/dsp/yuv_sse2.c
index e19bddff6c5d17819d602730d3e1c032c70ddc79..e33c2bbafde4714ae5157dc8c83b08fe43d023d2 100644
--- a/third_party/libwebp/dsp/yuv_sse2.c
+++ b/third_party/libwebp/dsp/yuv_sse2.c
@@ -15,6 +15,8 @@
#if defined(WEBP_USE_SSE2)
+#include "./common_sse2.h"
+#include <stdlib.h>
#include <emmintrin.h>
//-----------------------------------------------------------------------------
@@ -155,30 +157,13 @@ static WEBP_INLINE void PackAndStore565(const __m128i* const R,
_mm_storeu_si128((__m128i*)dst, rgb565);
}
-// Function used several times in PlanarTo24b.
-// It samples the in buffer as follows: one every two unsigned char is stored
-// at the beginning of the buffer, while the other half is stored at the end.
-static WEBP_INLINE void PlanarTo24bHelper(const __m128i* const in /*in[6]*/,
- __m128i* const out /*out[6]*/) {
- const __m128i v_mask = _mm_set1_epi16(0x00ff);
-
- // Take one every two upper 8b values.
- out[0] = _mm_packus_epi16(_mm_and_si128(in[0], v_mask),
- _mm_and_si128(in[1], v_mask));
- out[1] = _mm_packus_epi16(_mm_and_si128(in[2], v_mask),
- _mm_and_si128(in[3], v_mask));
- out[2] = _mm_packus_epi16(_mm_and_si128(in[4], v_mask),
- _mm_and_si128(in[5], v_mask));
- // Take one every two lower 8b values.
- out[3] = _mm_packus_epi16(_mm_srli_epi16(in[0], 8), _mm_srli_epi16(in[1], 8));
- out[4] = _mm_packus_epi16(_mm_srli_epi16(in[2], 8), _mm_srli_epi16(in[3], 8));
- out[5] = _mm_packus_epi16(_mm_srli_epi16(in[4], 8), _mm_srli_epi16(in[5], 8));
-}
-
// Pack the planar buffers
// rrrr... rrrr... gggg... gggg... bbbb... bbbb....
// triplet by triplet in the output buffer rgb as rgbrgbrgbrgb ...
-static WEBP_INLINE void PlanarTo24b(__m128i* const in /*in[6]*/, uint8_t* rgb) {
+static WEBP_INLINE void PlanarTo24b(__m128i* const in0, __m128i* const in1,
+ __m128i* const in2, __m128i* const in3,
+ __m128i* const in4, __m128i* const in5,
+ uint8_t* const rgb) {
// The input is 6 registers of sixteen 8b but for the sake of explanation,
// let's take 6 registers of four 8b values.
// To pack, we will keep taking one every two 8b integer and move it
@@ -191,22 +176,15 @@ static WEBP_INLINE void PlanarTo24b(__m128i* const in /*in[6]*/, uint8_t* rgb) {
// Repeat the same permutations twice more:
// r0r4g0g4 | b0b4r1r5 | g1g5b1b5 | r2r6g2g6 | b2b6r3r7 | g3g7b3b7
// r0g0b0r1 | g1b1r2g2 | b2r3g3b3 | r4g4b4r5 | g5b5r6g6 | b6r7g7b7
- __m128i tmp[6];
- PlanarTo24bHelper(in, tmp);
- PlanarTo24bHelper(tmp, in);
- PlanarTo24bHelper(in, tmp);
- // We need to do it two more times than the example as we have sixteen bytes.
- PlanarTo24bHelper(tmp, in);
- PlanarTo24bHelper(in, tmp);
-
- _mm_storeu_si128((__m128i*)(rgb + 0), tmp[0]);
- _mm_storeu_si128((__m128i*)(rgb + 16), tmp[1]);
- _mm_storeu_si128((__m128i*)(rgb + 32), tmp[2]);
- _mm_storeu_si128((__m128i*)(rgb + 48), tmp[3]);
- _mm_storeu_si128((__m128i*)(rgb + 64), tmp[4]);
- _mm_storeu_si128((__m128i*)(rgb + 80), tmp[5]);
-}
-#undef MK_UINT32
+ VP8PlanarTo24b(in0, in1, in2, in3, in4, in5);
+
+ _mm_storeu_si128((__m128i*)(rgb + 0), *in0);
+ _mm_storeu_si128((__m128i*)(rgb + 16), *in1);
+ _mm_storeu_si128((__m128i*)(rgb + 32), *in2);
+ _mm_storeu_si128((__m128i*)(rgb + 48), *in3);
+ _mm_storeu_si128((__m128i*)(rgb + 64), *in4);
+ _mm_storeu_si128((__m128i*)(rgb + 80), *in5);
+}
void VP8YuvToRgba32(const uint8_t* y, const uint8_t* u, const uint8_t* v,
uint8_t* dst) {
@@ -265,29 +243,29 @@ void VP8YuvToRgb56532(const uint8_t* y, const uint8_t* u, const uint8_t* v,
void VP8YuvToRgb32(const uint8_t* y, const uint8_t* u, const uint8_t* v,
uint8_t* dst) {
__m128i R0, R1, R2, R3, G0, G1, G2, G3, B0, B1, B2, B3;
- __m128i rgb[6];
+ __m128i rgb0, rgb1, rgb2, rgb3, rgb4, rgb5;
- YUV444ToRGB(y + 0, u + 0, v + 0, &R0, &G0, &B0);
- YUV444ToRGB(y + 8, u + 8, v + 8, &R1, &G1, &B1);
+ YUV444ToRGB(y + 0, u + 0, v + 0, &R0, &G0, &B0);
+ YUV444ToRGB(y + 8, u + 8, v + 8, &R1, &G1, &B1);
YUV444ToRGB(y + 16, u + 16, v + 16, &R2, &G2, &B2);
YUV444ToRGB(y + 24, u + 24, v + 24, &R3, &G3, &B3);
// Cast to 8b and store as RRRRGGGGBBBB.
- rgb[0] = _mm_packus_epi16(R0, R1);
- rgb[1] = _mm_packus_epi16(R2, R3);
- rgb[2] = _mm_packus_epi16(G0, G1);
- rgb[3] = _mm_packus_epi16(G2, G3);
- rgb[4] = _mm_packus_epi16(B0, B1);
- rgb[5] = _mm_packus_epi16(B2, B3);
+ rgb0 = _mm_packus_epi16(R0, R1);
+ rgb1 = _mm_packus_epi16(R2, R3);
+ rgb2 = _mm_packus_epi16(G0, G1);
+ rgb3 = _mm_packus_epi16(G2, G3);
+ rgb4 = _mm_packus_epi16(B0, B1);
+ rgb5 = _mm_packus_epi16(B2, B3);
// Pack as RGBRGBRGBRGB.
- PlanarTo24b(rgb, dst);
+ PlanarTo24b(&rgb0, &rgb1, &rgb2, &rgb3, &rgb4, &rgb5, dst);
}
void VP8YuvToBgr32(const uint8_t* y, const uint8_t* u, const uint8_t* v,
uint8_t* dst) {
__m128i R0, R1, R2, R3, G0, G1, G2, G3, B0, B1, B2, B3;
- __m128i bgr[6];
+ __m128i bgr0, bgr1, bgr2, bgr3, bgr4, bgr5;
YUV444ToRGB(y + 0, u + 0, v + 0, &R0, &G0, &B0);
YUV444ToRGB(y + 8, u + 8, v + 8, &R1, &G1, &B1);
@@ -295,15 +273,15 @@ void VP8YuvToBgr32(const uint8_t* y, const uint8_t* u, const uint8_t* v,
YUV444ToRGB(y + 24, u + 24, v + 24, &R3, &G3, &B3);
// Cast to 8b and store as BBBBGGGGRRRR.
- bgr[0] = _mm_packus_epi16(B0, B1);
- bgr[1] = _mm_packus_epi16(B2, B3);
- bgr[2] = _mm_packus_epi16(G0, G1);
- bgr[3] = _mm_packus_epi16(G2, G3);
- bgr[4] = _mm_packus_epi16(R0, R1);
- bgr[5] = _mm_packus_epi16(R2, R3);
+ bgr0 = _mm_packus_epi16(B0, B1);
+ bgr1 = _mm_packus_epi16(B2, B3);
+ bgr2 = _mm_packus_epi16(G0, G1);
+ bgr3 = _mm_packus_epi16(G2, G3);
+ bgr4 = _mm_packus_epi16(R0, R1);
+ bgr5= _mm_packus_epi16(R2, R3);
// Pack as BGRBGRBGRBGR.
- PlanarTo24b(bgr, dst);
+ PlanarTo24b(&bgr0, &bgr1, &bgr2, &bgr3, &bgr4, &bgr5, dst);
}
//-----------------------------------------------------------------------------
@@ -377,7 +355,7 @@ static void YuvToRgbRow(const uint8_t* y, const uint8_t* u, const uint8_t* v,
int n;
for (n = 0; n + 32 <= len; n += 32, dst += 32 * 3) {
__m128i R0, R1, R2, R3, G0, G1, G2, G3, B0, B1, B2, B3;
- __m128i rgb[6];
+ __m128i rgb0, rgb1, rgb2, rgb3, rgb4, rgb5;
YUV420ToRGB(y + 0, u + 0, v + 0, &R0, &G0, &B0);
YUV420ToRGB(y + 8, u + 4, v + 4, &R1, &G1, &B1);
@@ -385,15 +363,15 @@ static void YuvToRgbRow(const uint8_t* y, const uint8_t* u, const uint8_t* v,
YUV420ToRGB(y + 24, u + 12, v + 12, &R3, &G3, &B3);
// Cast to 8b and store as RRRRGGGGBBBB.
- rgb[0] = _mm_packus_epi16(R0, R1);
- rgb[1] = _mm_packus_epi16(R2, R3);
- rgb[2] = _mm_packus_epi16(G0, G1);
- rgb[3] = _mm_packus_epi16(G2, G3);
- rgb[4] = _mm_packus_epi16(B0, B1);
- rgb[5] = _mm_packus_epi16(B2, B3);
+ rgb0 = _mm_packus_epi16(R0, R1);
+ rgb1 = _mm_packus_epi16(R2, R3);
+ rgb2 = _mm_packus_epi16(G0, G1);
+ rgb3 = _mm_packus_epi16(G2, G3);
+ rgb4 = _mm_packus_epi16(B0, B1);
+ rgb5 = _mm_packus_epi16(B2, B3);
// Pack as RGBRGBRGBRGB.
- PlanarTo24b(rgb, dst);
+ PlanarTo24b(&rgb0, &rgb1, &rgb2, &rgb3, &rgb4, &rgb5, dst);
y += 32;
u += 16;
@@ -413,7 +391,7 @@ static void YuvToBgrRow(const uint8_t* y, const uint8_t* u, const uint8_t* v,
int n;
for (n = 0; n + 32 <= len; n += 32, dst += 32 * 3) {
__m128i R0, R1, R2, R3, G0, G1, G2, G3, B0, B1, B2, B3;
- __m128i bgr[6];
+ __m128i bgr0, bgr1, bgr2, bgr3, bgr4, bgr5;
YUV420ToRGB(y + 0, u + 0, v + 0, &R0, &G0, &B0);
YUV420ToRGB(y + 8, u + 4, v + 4, &R1, &G1, &B1);
@@ -421,15 +399,15 @@ static void YuvToBgrRow(const uint8_t* y, const uint8_t* u, const uint8_t* v,
YUV420ToRGB(y + 24, u + 12, v + 12, &R3, &G3, &B3);
// Cast to 8b and store as BBBBGGGGRRRR.
- bgr[0] = _mm_packus_epi16(B0, B1);
- bgr[1] = _mm_packus_epi16(B2, B3);
- bgr[2] = _mm_packus_epi16(G0, G1);
- bgr[3] = _mm_packus_epi16(G2, G3);
- bgr[4] = _mm_packus_epi16(R0, R1);
- bgr[5] = _mm_packus_epi16(R2, R3);
+ bgr0 = _mm_packus_epi16(B0, B1);
+ bgr1 = _mm_packus_epi16(B2, B3);
+ bgr2 = _mm_packus_epi16(G0, G1);
+ bgr3 = _mm_packus_epi16(G2, G3);
+ bgr4 = _mm_packus_epi16(R0, R1);
+ bgr5 = _mm_packus_epi16(R2, R3);
// Pack as BGRBGRBGRBGR.
- PlanarTo24b(bgr, dst);
+ PlanarTo24b(&bgr0, &bgr1, &bgr2, &bgr3, &bgr4, &bgr5, dst);
y += 32;
u += 16;
@@ -499,25 +477,19 @@ static WEBP_INLINE void RGB24PackedToPlanar(const uint8_t* const rgb,
// Convert 8 packed ARGB to r[], g[], b[]
static WEBP_INLINE void RGB32PackedToPlanar(const uint32_t* const argb,
- __m128i* const r,
- __m128i* const g,
- __m128i* const b) {
+ __m128i* const rgb /*in[6]*/) {
const __m128i zero = _mm_setzero_si128();
- const __m128i in0 = LOAD_16(argb + 0); // argb3 | argb2 | argb1 | argb0
- const __m128i in1 = LOAD_16(argb + 4); // argb7 | argb6 | argb5 | argb4
- // column-wise transpose
- const __m128i A0 = _mm_unpacklo_epi8(in0, in1);
- const __m128i A1 = _mm_unpackhi_epi8(in0, in1);
- const __m128i B0 = _mm_unpacklo_epi8(A0, A1);
- const __m128i B1 = _mm_unpackhi_epi8(A0, A1);
- // C0 = g7 g6 ... g1 g0 | b7 b6 ... b1 b0
- // C1 = a7 a6 ... a1 a0 | r7 r6 ... r1 r0
- const __m128i C0 = _mm_unpacklo_epi8(B0, B1);
- const __m128i C1 = _mm_unpackhi_epi8(B0, B1);
- // store 16b
- *r = _mm_unpacklo_epi8(C1, zero);
- *g = _mm_unpackhi_epi8(C0, zero);
- *b = _mm_unpacklo_epi8(C0, zero);
+ __m128i a0 = LOAD_16(argb + 0);
+ __m128i a1 = LOAD_16(argb + 4);
+ __m128i a2 = LOAD_16(argb + 8);
+ __m128i a3 = LOAD_16(argb + 12);
+ VP8L32bToPlanar(&a0, &a1, &a2, &a3);
+ rgb[0] = _mm_unpacklo_epi8(a1, zero);
+ rgb[1] = _mm_unpackhi_epi8(a1, zero);
+ rgb[2] = _mm_unpacklo_epi8(a2, zero);
+ rgb[3] = _mm_unpackhi_epi8(a2, zero);
+ rgb[4] = _mm_unpacklo_epi8(a3, zero);
+ rgb[5] = _mm_unpackhi_epi8(a3, zero);
}
// This macro computes (RG * MULT_RG + GB * MULT_GB + ROUNDER) >> DESCALE_FIX
@@ -649,11 +621,10 @@ static void ConvertARGBToY(const uint32_t* argb, uint8_t* y, int width) {
const int max_width = width & ~15;
int i;
for (i = 0; i < max_width; i += 16) {
- __m128i r, g, b, Y0, Y1;
- RGB32PackedToPlanar(&argb[i + 0], &r, &g, &b);
- ConvertRGBToY(&r, &g, &b, &Y0);
- RGB32PackedToPlanar(&argb[i + 8], &r, &g, &b);
- ConvertRGBToY(&r, &g, &b, &Y1);
+ __m128i Y0, Y1, rgb[6];
+ RGB32PackedToPlanar(&argb[i], rgb);
+ ConvertRGBToY(&rgb[0], &rgb[2], &rgb[4], &Y0);
+ ConvertRGBToY(&rgb[1], &rgb[3], &rgb[5], &Y1);
STORE_16(_mm_packus_epi16(Y0, Y1), y + i);
}
for (; i < width; ++i) { // left-over
@@ -678,20 +649,18 @@ static void ConvertARGBToUV(const uint32_t* argb, uint8_t* u, uint8_t* v,
const int max_width = src_width & ~31;
int i;
for (i = 0; i < max_width; i += 32, u += 16, v += 16) {
- __m128i r0, g0, b0, r1, g1, b1, U0, V0, U1, V1;
- RGB32PackedToPlanar(&argb[i + 0], &r0, &g0, &b0);
- RGB32PackedToPlanar(&argb[i + 8], &r1, &g1, &b1);
- HorizontalAddPack(&r0, &r1, &r0);
- HorizontalAddPack(&g0, &g1, &g0);
- HorizontalAddPack(&b0, &b1, &b0);
- ConvertRGBToUV(&r0, &g0, &b0, &U0, &V0);
-
- RGB32PackedToPlanar(&argb[i + 16], &r0, &g0, &b0);
- RGB32PackedToPlanar(&argb[i + 24], &r1, &g1, &b1);
- HorizontalAddPack(&r0, &r1, &r0);
- HorizontalAddPack(&g0, &g1, &g0);
- HorizontalAddPack(&b0, &b1, &b0);
- ConvertRGBToUV(&r0, &g0, &b0, &U1, &V1);
+ __m128i rgb[6], U0, V0, U1, V1;
+ RGB32PackedToPlanar(&argb[i], rgb);
+ HorizontalAddPack(&rgb[0], &rgb[1], &rgb[0]);
+ HorizontalAddPack(&rgb[2], &rgb[3], &rgb[2]);
+ HorizontalAddPack(&rgb[4], &rgb[5], &rgb[4]);
+ ConvertRGBToUV(&rgb[0], &rgb[2], &rgb[4], &U0, &V0);
+
+ RGB32PackedToPlanar(&argb[i + 16], rgb);
+ HorizontalAddPack(&rgb[0], &rgb[1], &rgb[0]);
+ HorizontalAddPack(&rgb[2], &rgb[3], &rgb[2]);
+ HorizontalAddPack(&rgb[4], &rgb[5], &rgb[4]);
+ ConvertRGBToUV(&rgb[0], &rgb[2], &rgb[4], &U1, &V1);
U0 = _mm_packus_epi16(U0, U1);
V0 = _mm_packus_epi16(V0, V1);
@@ -767,9 +736,128 @@ WEBP_TSAN_IGNORE_FUNCTION void WebPInitConvertARGBToYUVSSE2(void) {
WebPConvertRGBA32ToUV = ConvertRGBA32ToUV;
}
+//------------------------------------------------------------------------------
+
+#define MAX_Y ((1 << 10) - 1) // 10b precision over 16b-arithmetic
+static uint16_t clip_y(int v) {
+ return (v < 0) ? 0 : (v > MAX_Y) ? MAX_Y : (uint16_t)v;
+}
+
+static uint64_t SharpYUVUpdateY_SSE2(const uint16_t* ref, const uint16_t* src,
+ uint16_t* dst, int len) {
+ uint64_t diff = 0;
+ uint32_t tmp[4];
+ int i;
+ const __m128i zero = _mm_setzero_si128();
+ const __m128i max = _mm_set1_epi16(MAX_Y);
+ const __m128i one = _mm_set1_epi16(1);
+ __m128i sum = zero;
+
+ for (i = 0; i + 8 <= len; i += 8) {
+ const __m128i A = _mm_loadu_si128((const __m128i*)(ref + i));
+ const __m128i B = _mm_loadu_si128((const __m128i*)(src + i));
+ const __m128i C = _mm_loadu_si128((const __m128i*)(dst + i));
+ const __m128i D = _mm_sub_epi16(A, B); // diff_y
+ const __m128i E = _mm_cmpgt_epi16(zero, D); // sign (-1 or 0)
+ const __m128i F = _mm_add_epi16(C, D); // new_y
+ const __m128i G = _mm_or_si128(E, one); // -1 or 1
+ const __m128i H = _mm_max_epi16(_mm_min_epi16(F, max), zero);
+ const __m128i I = _mm_madd_epi16(D, G); // sum(abs(...))
+ _mm_storeu_si128((__m128i*)(dst + i), H);
+ sum = _mm_add_epi32(sum, I);
+ }
+ _mm_storeu_si128((__m128i*)tmp, sum);
+ diff = tmp[3] + tmp[2] + tmp[1] + tmp[0];
+ for (; i < len; ++i) {
+ const int diff_y = ref[i] - src[i];
+ const int new_y = (int)dst[i] + diff_y;
+ dst[i] = clip_y(new_y);
+ diff += (uint64_t)abs(diff_y);
+ }
+ return diff;
+}
+
+static void SharpYUVUpdateRGB_SSE2(const int16_t* ref, const int16_t* src,
+ int16_t* dst, int len) {
+ int i = 0;
+ for (i = 0; i + 8 <= len; i += 8) {
+ const __m128i A = _mm_loadu_si128((const __m128i*)(ref + i));
+ const __m128i B = _mm_loadu_si128((const __m128i*)(src + i));
+ const __m128i C = _mm_loadu_si128((const __m128i*)(dst + i));
+ const __m128i D = _mm_sub_epi16(A, B); // diff_uv
+ const __m128i E = _mm_add_epi16(C, D); // new_uv
+ _mm_storeu_si128((__m128i*)(dst + i), E);
+ }
+ for (; i < len; ++i) {
+ const int diff_uv = ref[i] - src[i];
+ dst[i] += diff_uv;
+ }
+}
+
+static void SharpYUVFilterRow_SSE2(const int16_t* A, const int16_t* B, int len,
+ const uint16_t* best_y, uint16_t* out) {
+ int i;
+ const __m128i kCst8 = _mm_set1_epi16(8);
+ const __m128i max = _mm_set1_epi16(MAX_Y);
+ const __m128i zero = _mm_setzero_si128();
+ for (i = 0; i + 8 <= len; i += 8) {
+ const __m128i a0 = _mm_loadu_si128((const __m128i*)(A + i + 0));
+ const __m128i a1 = _mm_loadu_si128((const __m128i*)(A + i + 1));
+ const __m128i b0 = _mm_loadu_si128((const __m128i*)(B + i + 0));
+ const __m128i b1 = _mm_loadu_si128((const __m128i*)(B + i + 1));
+ const __m128i a0b1 = _mm_add_epi16(a0, b1);
+ const __m128i a1b0 = _mm_add_epi16(a1, b0);
+ const __m128i a0a1b0b1 = _mm_add_epi16(a0b1, a1b0); // A0+A1+B0+B1
+ const __m128i a0a1b0b1_8 = _mm_add_epi16(a0a1b0b1, kCst8);
+ const __m128i a0b1_2 = _mm_add_epi16(a0b1, a0b1); // 2*(A0+B1)
+ const __m128i a1b0_2 = _mm_add_epi16(a1b0, a1b0); // 2*(A1+B0)
+ const __m128i c0 = _mm_srai_epi16(_mm_add_epi16(a0b1_2, a0a1b0b1_8), 3);
+ const __m128i c1 = _mm_srai_epi16(_mm_add_epi16(a1b0_2, a0a1b0b1_8), 3);
+ const __m128i d0 = _mm_add_epi16(c1, a0);
+ const __m128i d1 = _mm_add_epi16(c0, a1);
+ const __m128i e0 = _mm_srai_epi16(d0, 1);
+ const __m128i e1 = _mm_srai_epi16(d1, 1);
+ const __m128i f0 = _mm_unpacklo_epi16(e0, e1);
+ const __m128i f1 = _mm_unpackhi_epi16(e0, e1);
+ const __m128i g0 = _mm_loadu_si128((const __m128i*)(best_y + 2 * i + 0));
+ const __m128i g1 = _mm_loadu_si128((const __m128i*)(best_y + 2 * i + 8));
+ const __m128i h0 = _mm_add_epi16(g0, f0);
+ const __m128i h1 = _mm_add_epi16(g1, f1);
+ const __m128i i0 = _mm_max_epi16(_mm_min_epi16(h0, max), zero);
+ const __m128i i1 = _mm_max_epi16(_mm_min_epi16(h1, max), zero);
+ _mm_storeu_si128((__m128i*)(out + 2 * i + 0), i0);
+ _mm_storeu_si128((__m128i*)(out + 2 * i + 8), i1);
+ }
+ for (; i < len; ++i) {
+ // (9 * A0 + 3 * A1 + 3 * B0 + B1 + 8) >> 4 =
+ // = (8 * A0 + 2 * (A1 + B0) + (A0 + A1 + B0 + B1 + 8)) >> 4
+ // We reuse the common sub-expressions.
+ const int a0b1 = A[i + 0] + B[i + 1];
+ const int a1b0 = A[i + 1] + B[i + 0];
+ const int a0a1b0b1 = a0b1 + a1b0 + 8;
+ const int v0 = (8 * A[i + 0] + 2 * a1b0 + a0a1b0b1) >> 4;
+ const int v1 = (8 * A[i + 1] + 2 * a0b1 + a0a1b0b1) >> 4;
+ out[2 * i + 0] = clip_y(best_y[2 * i + 0] + v0);
+ out[2 * i + 1] = clip_y(best_y[2 * i + 1] + v1);
+ }
+}
+
+#undef MAX_Y
+
+//------------------------------------------------------------------------------
+
+extern void WebPInitSharpYUVSSE2(void);
+
+WEBP_TSAN_IGNORE_FUNCTION void WebPInitSharpYUVSSE2(void) {
+ WebPSharpYUVUpdateY = SharpYUVUpdateY_SSE2;
+ WebPSharpYUVUpdateRGB = SharpYUVUpdateRGB_SSE2;
+ WebPSharpYUVFilterRow = SharpYUVFilterRow_SSE2;
+}
+
#else // !WEBP_USE_SSE2
WEBP_DSP_INIT_STUB(WebPInitSamplersSSE2)
WEBP_DSP_INIT_STUB(WebPInitConvertARGBToYUVSSE2)
+WEBP_DSP_INIT_STUB(WebPInitSharpYUVSSE2)
#endif // WEBP_USE_SSE2
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