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Implement the upsampling/yuv functions in SSE41

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Change-Id: If122da22b74a974262063d232f6ca0ab902ff64e
This commit is contained in:
Vincent Rabaud 2017-12-04 21:47:03 +01:00
parent 84101a8165
commit 807b53c47e
12 changed files with 1043 additions and 12 deletions
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2
Android.mk
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@ -85,11 +85,13 @@ dsp_dec_srcs := \
src/dsp/upsampling_msa.c \
src/dsp/upsampling_neon.$(NEON) \
src/dsp/upsampling_sse2.c \
src/dsp/upsampling_sse41.c \
src/dsp/yuv.c \
src/dsp/yuv_mips32.c \
src/dsp/yuv_mips_dsp_r2.c \
src/dsp/yuv_neon.$(NEON) \
src/dsp/yuv_sse2.c \
src/dsp/yuv_sse41.c \
dsp_enc_srcs := \
src/dsp/cost.c \

2
build.gradle
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@ -152,11 +152,13 @@ model {
include "upsampling_msa.c"
include "upsampling_neon.$NEON"
include "upsampling_sse2.c"
include "upsampling_sse41.c"
include "yuv.c"
include "yuv_mips32.c"
include "yuv_mips_dsp_r2.c"
include "yuv_neon.$NEON"
include "yuv_sse2.c"
include "yuv_sse41.c"
srcDir "src/utils"
include "bit_reader_utils.c"
include "color_cache_utils.c"

2
src/dsp/Makefile.am
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@ -65,6 +65,8 @@ libwebpdsp_avx2_la_CFLAGS = $(AM_CFLAGS) $(AVX2_FLAGS)
libwebpdspdecode_sse41_la_SOURCES =
libwebpdspdecode_sse41_la_SOURCES += alpha_processing_sse41.c
libwebpdspdecode_sse41_la_SOURCES += dec_sse41.c
libwebpdspdecode_sse41_la_SOURCES += upsampling_sse41.c
libwebpdspdecode_sse41_la_SOURCES += yuv_sse41.c
libwebpdspdecode_sse41_la_CPPFLAGS = $(libwebpdsp_la_CPPFLAGS)
libwebpdspdecode_sse41_la_CFLAGS = $(AM_CFLAGS) $(SSE41_FLAGS)

8
src/dsp/common_sse2.h
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@ -128,9 +128,9 @@ static WEBP_INLINE void VP8Transpose_2_4x4_16b(
// Pack the planar buffers
// rrrr... rrrr... gggg... gggg... bbbb... bbbb....
// triplet by triplet in the output buffer rgb as rgbrgbrgbrgb ...
static WEBP_INLINE void VP8PlanarTo24b(__m128i* const in0, __m128i* const in1,
__m128i* const in2, __m128i* const in3,
__m128i* const in4, __m128i* const in5) {
static WEBP_INLINE void VP8PlanarTo24b_SSE2(
__m128i* const in0, __m128i* const in1, __m128i* const in2,
__m128i* const in3, __m128i* const in4, __m128i* const in5) {
// 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
@ -159,7 +159,7 @@ static WEBP_INLINE void VP8PlanarTo24b(__m128i* const in0, __m128i* const in1,
// Convert four packed four-channel buffers like argbargbargbargb... into the
// split channels aaaaa ... rrrr ... gggg .... bbbbb ......
static WEBP_INLINE void VP8L32bToPlanar(__m128i* const in0,
static WEBP_INLINE void VP8L32bToPlanar_SSE2(__m128i* const in0,
__m128i* const in1,
__m128i* const in2,
__m128i* const in3) {

132
src/dsp/common_sse41.h Normal file
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@ -0,0 +1,132 @@
// Copyright 2016 Google Inc. All Rights Reserved.
//
// Use of this source code is governed by a BSD-style license
// that can be found in the COPYING 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.
// -----------------------------------------------------------------------------
//
// SSE4 code common to several files.
//
// Author: Vincent Rabaud (vrabaud@google.com)
#ifndef WEBP_DSP_COMMON_SSE41_H_
#define WEBP_DSP_COMMON_SSE41_H_
#ifdef __cplusplus
extern "C" {
#endif
#if defined(WEBP_USE_SSE41)
#include <smmintrin.h>
//------------------------------------------------------------------------------
// Channel mixing.
// Shuffles the input buffer as A0 0 0 A1 0 0 A2 ...
#define WEBP_SSE41_SHUFF(OUT, IN0, IN1) \
OUT##0 = _mm_shuffle_epi8(*IN0, shuff0); \
OUT##1 = _mm_shuffle_epi8(*IN0, shuff1); \
OUT##2 = _mm_shuffle_epi8(*IN0, shuff2); \
OUT##3 = _mm_shuffle_epi8(*IN1, shuff0); \
OUT##4 = _mm_shuffle_epi8(*IN1, shuff1); \
OUT##5 = _mm_shuffle_epi8(*IN1, shuff2);
// Pack the planar buffers
// rrrr... rrrr... gggg... gggg... bbbb... bbbb....
// triplet by triplet in the output buffer rgb as rgbrgbrgbrgb ...
static WEBP_INLINE void VP8PlanarTo24b_SSE41(
__m128i* const in0, __m128i* const in1, __m128i* const in2,
__m128i* const in3, __m128i* const in4, __m128i* const in5) {
__m128i R0, R1, R2, R3, R4, R5;
__m128i G0, G1, G2, G3, G4, G5;
__m128i B0, B1, B2, B3, B4, B5;
// Process R.
{
const __m128i shuff0 = _mm_set_epi8(
5, -1, -1, 4, -1, -1, 3, -1, -1, 2, -1, -1, 1, -1, -1, 0);
const __m128i shuff1 = _mm_set_epi8(
-1, 10, -1, -1, 9, -1, -1, 8, -1, -1, 7, -1, -1, 6, -1, -1);
const __m128i shuff2 = _mm_set_epi8(
-1, -1, 15, -1, -1, 14, -1, -1, 13, -1, -1, 12, -1, -1, 11, -1);
WEBP_SSE41_SHUFF(R, in0, in1)
}
// Process G.
{
// Same as before, just shifted to the left by one and including the right
// padding.
const __m128i shuff0 = _mm_set_epi8(
-1, -1, 4, -1, -1, 3, -1, -1, 2, -1, -1, 1, -1, -1, 0, -1);
const __m128i shuff1 = _mm_set_epi8(
10, -1, -1, 9, -1, -1, 8, -1, -1, 7, -1, -1, 6, -1, -1, 5);
const __m128i shuff2 = _mm_set_epi8(
-1, 15, -1, -1, 14, -1, -1, 13, -1, -1, 12, -1, -1, 11, -1, -1);
WEBP_SSE41_SHUFF(G, in2, in3)
}
// Process B.
{
const __m128i shuff0 = _mm_set_epi8(
-1, 4, -1, -1, 3, -1, -1, 2, -1, -1, 1, -1, -1, 0, -1, -1);
const __m128i shuff1 = _mm_set_epi8(
-1, -1, 9, -1, -1, 8, -1, -1, 7, -1, -1, 6, -1, -1, 5, -1);
const __m128i shuff2 = _mm_set_epi8(
15, -1, -1, 14, -1, -1, 13, -1, -1, 12, -1, -1, 11, -1, -1, 10);
WEBP_SSE41_SHUFF(B, in4, in5)
}
// OR the different channels.
{
const __m128i RG0 = _mm_or_si128(R0, G0);
const __m128i RG1 = _mm_or_si128(R1, G1);
const __m128i RG2 = _mm_or_si128(R2, G2);
const __m128i RG3 = _mm_or_si128(R3, G3);
const __m128i RG4 = _mm_or_si128(R4, G4);
const __m128i RG5 = _mm_or_si128(R5, G5);
*in0 = _mm_or_si128(RG0, B0);
*in1 = _mm_or_si128(RG1, B1);
*in2 = _mm_or_si128(RG2, B2);
*in3 = _mm_or_si128(RG3, B3);
*in4 = _mm_or_si128(RG4, B4);
*in5 = _mm_or_si128(RG5, B5);
}
}
#undef WEBP_SSE41_SHUFF
// Convert four packed four-channel buffers like argbargbargbargb... into the
// split channels aaaaa ... rrrr ... gggg .... bbbbb ......
static WEBP_INLINE void VP8L32bToPlanar_SSE41(__m128i* const in0,
__m128i* const in1,
__m128i* const in2,
__m128i* const in3) {
// aaaarrrrggggbbbb
const __m128i shuff0 =
_mm_set_epi8(15, 11, 7, 3, 14, 10, 6, 2, 13, 9, 5, 1, 12, 8, 4, 0);
const __m128i A0 = _mm_shuffle_epi8(*in0, shuff0);
const __m128i A1 = _mm_shuffle_epi8(*in1, shuff0);
const __m128i A2 = _mm_shuffle_epi8(*in2, shuff0);
const __m128i A3 = _mm_shuffle_epi8(*in3, shuff0);
// A0A1R0R1
// G0G1B0B1
// A2A3R2R3
// G0G1B0B1
const __m128i B0 = _mm_unpacklo_epi32(A0, A1);
const __m128i B1 = _mm_unpackhi_epi32(A0, A1);
const __m128i B2 = _mm_unpacklo_epi32(A2, A3);
const __m128i B3 = _mm_unpackhi_epi32(A2, A3);
*in3 = _mm_unpacklo_epi64(B0, B2);
*in2 = _mm_unpackhi_epi64(B0, B2);
*in1 = _mm_unpacklo_epi64(B1, B3);
*in0 = _mm_unpackhi_epi64(B1, B3);
}
#endif // WEBP_USE_SSE41
#ifdef __cplusplus
} // extern "C"
#endif
#endif // WEBP_DSP_COMMON_SSE41_H_

6
src/dsp/lossless_sse2.c
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@ -503,11 +503,11 @@ static void ConvertBGRAToRGB_SSE2(const uint32_t* src, int num_pixels,
__m128i in5 = _mm_loadu_si128(in + 5);
__m128i in6 = _mm_loadu_si128(in + 6);
__m128i in7 = _mm_loadu_si128(in + 7);
VP8L32bToPlanar(&in0, &in1, &in2, &in3);
VP8L32bToPlanar(&in4, &in5, &in6, &in7);
VP8L32bToPlanar_SSE2(&in0, &in1, &in2, &in3);
VP8L32bToPlanar_SSE2(&in4, &in5, &in6, &in7);
// At this points, in1/in5 contains red only, in2/in6 green only ...
// Pack the colors in 24b RGB.
VP8PlanarTo24b(&in1, &in5, &in2, &in6, &in3, &in7);
VP8PlanarTo24b_SSE2(&in1, &in5, &in2, &in6, &in3, &in7);
_mm_storeu_si128(out + 0, in1);
_mm_storeu_si128(out + 1, in5);
_mm_storeu_si128(out + 2, in2);

12
src/dsp/upsampling.c
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@ -217,6 +217,7 @@ WebPYUV444Converter WebPYUV444Converters[MODE_LAST];
extern void WebPInitYUV444ConvertersMIPSdspR2(void);
extern void WebPInitYUV444ConvertersSSE2(void);
extern void WebPInitYUV444ConvertersSSE41(void);
static volatile VP8CPUInfo upsampling_last_cpuinfo_used1 =
(VP8CPUInfo)&upsampling_last_cpuinfo_used1;
@ -242,6 +243,11 @@ WEBP_TSAN_IGNORE_FUNCTION void WebPInitYUV444Converters(void) {
WebPInitYUV444ConvertersSSE2();
}
#endif
#if defined(WEBP_USE_SSE41)
if (VP8GetCPUInfo(kSSE4_1)) {
WebPInitYUV444ConvertersSSE41();
}
#endif
#if defined(WEBP_USE_MIPS_DSP_R2)
if (VP8GetCPUInfo(kMIPSdspR2)) {
WebPInitYUV444ConvertersMIPSdspR2();
@ -255,6 +261,7 @@ WEBP_TSAN_IGNORE_FUNCTION void WebPInitYUV444Converters(void) {
// Main calls
extern void WebPInitUpsamplersSSE2(void);
extern void WebPInitUpsamplersSSE41(void);
extern void WebPInitUpsamplersNEON(void);
extern void WebPInitUpsamplersMIPSdspR2(void);
extern void WebPInitUpsamplersMSA(void);
@ -287,6 +294,11 @@ WEBP_TSAN_IGNORE_FUNCTION void WebPInitUpsamplers(void) {
WebPInitUpsamplersSSE2();
}
#endif
#if defined(WEBP_USE_SSE41)
if (VP8GetCPUInfo(kSSE4_1)) {
WebPInitUpsamplersSSE41();
}
#endif
#if defined(WEBP_USE_MIPS_DSP_R2)
if (VP8GetCPUInfo(kMIPSdspR2)) {
WebPInitUpsamplersMIPSdspR2();

243
src/dsp/upsampling_sse41.c Normal file
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@ -0,0 +1,243 @@
// Copyright 2011 Google Inc. All Rights Reserved.
//
// Use of this source code is governed by a BSD-style license
// that can be found in the COPYING 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.
// -----------------------------------------------------------------------------
//
// SSE41 version of YUV to RGB upsampling functions.
//
// Author: somnath@google.com (Somnath Banerjee)
#include "src/dsp/dsp.h"
#if defined(WEBP_USE_SSE41)
#include <assert.h>
#include <smmintrin.h>
#include <string.h>
#include "src/dsp/yuv.h"
#ifdef FANCY_UPSAMPLING
#if !defined(WEBP_REDUCE_CSP)
// We compute (9*a + 3*b + 3*c + d + 8) / 16 as follows
// u = (9*a + 3*b + 3*c + d + 8) / 16
// = (a + (a + 3*b + 3*c + d) / 8 + 1) / 2
// = (a + m + 1) / 2
// where m = (a + 3*b + 3*c + d) / 8
// = ((a + b + c + d) / 2 + b + c) / 4
//
// Let's say k = (a + b + c + d) / 4.
// We can compute k as
// k = (s + t + 1) / 2 - ((a^d) | (b^c) | (s^t)) & 1
// where s = (a + d + 1) / 2 and t = (b + c + 1) / 2
//
// Then m can be written as
// m = (k + t + 1) / 2 - (((b^c) & (s^t)) | (k^t)) & 1
// Computes out = (k + in + 1) / 2 - ((ij & (s^t)) | (k^in)) & 1
#define GET_M(ij, in, out) do { \
const __m128i tmp0 = _mm_avg_epu8(k, (in)); /* (k + in + 1) / 2 */ \
const __m128i tmp1 = _mm_and_si128((ij), st); /* (ij) & (s^t) */ \
const __m128i tmp2 = _mm_xor_si128(k, (in)); /* (k^in) */ \
const __m128i tmp3 = _mm_or_si128(tmp1, tmp2); /* ((ij) & (s^t)) | (k^in) */\
const __m128i tmp4 = _mm_and_si128(tmp3, one); /* & 1 -> lsb_correction */ \
(out) = _mm_sub_epi8(tmp0, tmp4); /* (k + in + 1) / 2 - lsb_correction */ \
} while (0)
// pack and store two alternating pixel rows
#define PACK_AND_STORE(a, b, da, db, out) do { \
const __m128i t_a = _mm_avg_epu8(a, da); /* (9a + 3b + 3c + d + 8) / 16 */ \
const __m128i t_b = _mm_avg_epu8(b, db); /* (3a + 9b + c + 3d + 8) / 16 */ \
const __m128i t_1 = _mm_unpacklo_epi8(t_a, t_b); \
const __m128i t_2 = _mm_unpackhi_epi8(t_a, t_b); \
_mm_store_si128(((__m128i*)(out)) + 0, t_1); \
_mm_store_si128(((__m128i*)(out)) + 1, t_2); \
} while (0)
// Loads 17 pixels each from rows r1 and r2 and generates 32 pixels.
#define UPSAMPLE_32PIXELS(r1, r2, out) { \
const __m128i one = _mm_set1_epi8(1); \
const __m128i a = _mm_loadu_si128((const __m128i*)&(r1)[0]); \
const __m128i b = _mm_loadu_si128((const __m128i*)&(r1)[1]); \
const __m128i c = _mm_loadu_si128((const __m128i*)&(r2)[0]); \
const __m128i d = _mm_loadu_si128((const __m128i*)&(r2)[1]); \
\
const __m128i s = _mm_avg_epu8(a, d); /* s = (a + d + 1) / 2 */ \
const __m128i t = _mm_avg_epu8(b, c); /* t = (b + c + 1) / 2 */ \
const __m128i st = _mm_xor_si128(s, t); /* st = s^t */ \
\
const __m128i ad = _mm_xor_si128(a, d); /* ad = a^d */ \
const __m128i bc = _mm_xor_si128(b, c); /* bc = b^c */ \
\
const __m128i t1 = _mm_or_si128(ad, bc); /* (a^d) | (b^c) */ \
const __m128i t2 = _mm_or_si128(t1, st); /* (a^d) | (b^c) | (s^t) */ \
const __m128i t3 = _mm_and_si128(t2, one); /* (a^d) | (b^c) | (s^t) & 1 */ \
const __m128i t4 = _mm_avg_epu8(s, t); \
const __m128i k = _mm_sub_epi8(t4, t3); /* k = (a + b + c + d) / 4 */ \
__m128i diag1, diag2; \
\
GET_M(bc, t, diag1); /* diag1 = (a + 3b + 3c + d) / 8 */ \
GET_M(ad, s, diag2); /* diag2 = (3a + b + c + 3d) / 8 */ \
\
/* pack the alternate pixels */ \
PACK_AND_STORE(a, b, diag1, diag2, (out) + 0); /* store top */ \
PACK_AND_STORE(c, d, diag2, diag1, (out) + 2 * 32); /* store bottom */ \
}
// Turn the macro into a function for reducing code-size when non-critical
static void Upsample32Pixels_SSE41(const uint8_t r1[], const uint8_t r2[],
uint8_t* const out) {
UPSAMPLE_32PIXELS(r1, r2, out);
}
#define UPSAMPLE_LAST_BLOCK(tb, bb, num_pixels, out) { \
uint8_t r1[17], r2[17]; \
memcpy(r1, (tb), (num_pixels)); \
memcpy(r2, (bb), (num_pixels)); \
/* replicate last byte */ \
memset(r1 + (num_pixels), r1[(num_pixels) - 1], 17 - (num_pixels)); \
memset(r2 + (num_pixels), r2[(num_pixels) - 1], 17 - (num_pixels)); \
/* using the shared function instead of the macro saves ~3k code size */ \
Upsample32Pixels_SSE41(r1, r2, out); \
}
#define CONVERT2RGB(FUNC, XSTEP, top_y, bottom_y, \
top_dst, bottom_dst, cur_x, num_pixels) { \
int n; \
for (n = 0; n < (num_pixels); ++n) { \
FUNC((top_y)[(cur_x) + n], r_u[n], r_v[n], \
(top_dst) + ((cur_x) + n) * (XSTEP)); \
} \
if ((bottom_y) != NULL) { \
for (n = 0; n < (num_pixels); ++n) { \
FUNC((bottom_y)[(cur_x) + n], r_u[64 + n], r_v[64 + n], \
(bottom_dst) + ((cur_x) + n) * (XSTEP)); \
} \
} \
}
#define CONVERT2RGB_32(FUNC, XSTEP, top_y, bottom_y, \
top_dst, bottom_dst, cur_x) do { \
FUNC##32_SSE41((top_y) + (cur_x), r_u, r_v, (top_dst) + (cur_x) * (XSTEP)); \
if ((bottom_y) != NULL) { \
FUNC##32_SSE41((bottom_y) + (cur_x), r_u + 64, r_v + 64, \
(bottom_dst) + (cur_x) * (XSTEP)); \
} \
} while (0)
#define SSE4_UPSAMPLE_FUNC(FUNC_NAME, FUNC, XSTEP) \
static void FUNC_NAME(const uint8_t* top_y, const uint8_t* bottom_y, \
const uint8_t* top_u, const uint8_t* top_v, \
const uint8_t* cur_u, const uint8_t* cur_v, \
uint8_t* top_dst, uint8_t* bottom_dst, int len) { \
int uv_pos, pos; \
/* 16byte-aligned array to cache reconstructed u and v */ \
uint8_t uv_buf[4 * 32 + 15]; \
uint8_t* const r_u = (uint8_t*)((uintptr_t)(uv_buf + 15) & ~15); \
uint8_t* const r_v = r_u + 32; \
\
assert(top_y != NULL); \
{ /* Treat the first pixel in regular way */ \
const int u_diag = ((top_u[0] + cur_u[0]) >> 1) + 1; \
const int v_diag = ((top_v[0] + cur_v[0]) >> 1) + 1; \
const int u0_t = (top_u[0] + u_diag) >> 1; \
const int v0_t = (top_v[0] + v_diag) >> 1; \
FUNC(top_y[0], u0_t, v0_t, top_dst); \
if (bottom_y != NULL) { \
const int u0_b = (cur_u[0] + u_diag) >> 1; \
const int v0_b = (cur_v[0] + v_diag) >> 1; \
FUNC(bottom_y[0], u0_b, v0_b, bottom_dst); \
} \
} \
/* For UPSAMPLE_32PIXELS, 17 u/v values must be read-able for each block */ \
for (pos = 1, uv_pos = 0; pos + 32 + 1 <= len; pos += 32, uv_pos += 16) { \
UPSAMPLE_32PIXELS(top_u + uv_pos, cur_u + uv_pos, r_u); \
UPSAMPLE_32PIXELS(top_v + uv_pos, cur_v + uv_pos, r_v); \
CONVERT2RGB_32(FUNC, XSTEP, top_y, bottom_y, top_dst, bottom_dst, pos); \
} \
if (len > 1) { \
const int left_over = ((len + 1) >> 1) - (pos >> 1); \
assert(left_over > 0); \
UPSAMPLE_LAST_BLOCK(top_u + uv_pos, cur_u + uv_pos, left_over, r_u); \
UPSAMPLE_LAST_BLOCK(top_v + uv_pos, cur_v + uv_pos, left_over, r_v); \
CONVERT2RGB(FUNC, XSTEP, top_y, bottom_y, top_dst, bottom_dst, \
pos, len - pos); \
} \
}
// SSE4 variants of the fancy upsampler.
SSE4_UPSAMPLE_FUNC(UpsampleRgbLinePair_SSE41, VP8YuvToRgb, 3)
SSE4_UPSAMPLE_FUNC(UpsampleBgrLinePair_SSE41, VP8YuvToBgr, 3)
#undef GET_M
#undef PACK_AND_STORE
#undef UPSAMPLE_32PIXELS
#undef UPSAMPLE_LAST_BLOCK
#undef CONVERT2RGB
#undef CONVERT2RGB_32
#undef SSE4_UPSAMPLE_FUNC
#endif // WEBP_REDUCE_CSP
//------------------------------------------------------------------------------
// Entry point
extern WebPUpsampleLinePairFunc WebPUpsamplers[/* MODE_LAST */];
extern void WebPInitUpsamplersSSE41(void);
WEBP_TSAN_IGNORE_FUNCTION void WebPInitUpsamplersSSE41(void) {
#if !defined(WEBP_REDUCE_CSP)
WebPUpsamplers[MODE_RGB] = UpsampleRgbLinePair_SSE41;
WebPUpsamplers[MODE_BGR] = UpsampleBgrLinePair_SSE41;
#endif // WEBP_REDUCE_CSP
}
#endif // FANCY_UPSAMPLING
//------------------------------------------------------------------------------
extern WebPYUV444Converter WebPYUV444Converters[/* MODE_LAST */];
extern void WebPInitYUV444ConvertersSSE41(void);
#define YUV444_FUNC(FUNC_NAME, CALL, CALL_C, XSTEP) \
extern void CALL_C(const uint8_t* y, const uint8_t* u, const uint8_t* v, \
uint8_t* dst, int len); \
static void FUNC_NAME(const uint8_t* y, const uint8_t* u, const uint8_t* v, \
uint8_t* dst, int len) { \
int i; \
const int max_len = len & ~31; \
for (i = 0; i < max_len; i += 32) { \
CALL(y + i, u + i, v + i, dst + i * (XSTEP)); \
} \
if (i < len) { /* C-fallback */ \
CALL_C(y + i, u + i, v + i, dst + i * (XSTEP), len - i); \
} \
}
#if !defined(WEBP_REDUCE_CSP)
YUV444_FUNC(Yuv444ToRgb_SSE41, VP8YuvToRgb32_SSE41, WebPYuv444ToRgb_C, 3);
YUV444_FUNC(Yuv444ToBgr_SSE41, VP8YuvToBgr32_SSE41, WebPYuv444ToBgr_C, 3);
#endif // WEBP_REDUCE_CSP
WEBP_TSAN_IGNORE_FUNCTION void WebPInitYUV444ConvertersSSE41(void) {
#if !defined(WEBP_REDUCE_CSP)
WebPYUV444Converters[MODE_RGB] = Yuv444ToRgb_SSE41;
WebPYUV444Converters[MODE_BGR] = Yuv444ToBgr_SSE41;
#endif // WEBP_REDUCE_CSP
}
#else
WEBP_DSP_INIT_STUB(WebPInitYUV444ConvertersSSE41)
#endif // WEBP_USE_SSE41
#if !(defined(FANCY_UPSAMPLING) && defined(WEBP_USE_SSE41))
WEBP_DSP_INIT_STUB(WebPInitUpsamplersSSE41)
#endif

12
src/dsp/yuv.c
View File

@ -71,6 +71,7 @@ void WebPSamplerProcessPlane(const uint8_t* y, int y_stride,
WebPSamplerRowFunc WebPSamplers[MODE_LAST];
extern void WebPInitSamplersSSE2(void);
extern void WebPInitSamplersSSE41(void);
extern void WebPInitSamplersMIPS32(void);
extern void WebPInitSamplersMIPSdspR2(void);
@ -99,6 +100,11 @@ WEBP_TSAN_IGNORE_FUNCTION void WebPInitSamplers(void) {
WebPInitSamplersSSE2();
}
#endif // WEBP_USE_SSE2
#if defined(WEBP_USE_SSE41)
if (VP8GetCPUInfo(kSSE4_1)) {
WebPInitSamplersSSE41();
}
#endif // WEBP_USE_SSE41
#if defined(WEBP_USE_MIPS32)
if (VP8GetCPUInfo(kMIPS32)) {
WebPInitSamplersMIPS32();
@ -258,6 +264,7 @@ static volatile VP8CPUInfo rgba_to_yuv_last_cpuinfo_used =
(VP8CPUInfo)&rgba_to_yuv_last_cpuinfo_used;
extern void WebPInitConvertARGBToYUVSSE2(void);
extern void WebPInitConvertARGBToYUVSSE41(void);
extern void WebPInitConvertARGBToYUVNEON(void);
extern void WebPInitSharpYUVSSE2(void);
extern void WebPInitSharpYUVNEON(void);
@ -286,6 +293,11 @@ WEBP_TSAN_IGNORE_FUNCTION void WebPInitConvertARGBToYUV(void) {
WebPInitSharpYUVSSE2();
}
#endif // WEBP_USE_SSE2
#if defined(WEBP_USE_SSE41)
if (VP8GetCPUInfo(kSSE4_1)) {
WebPInitConvertARGBToYUVSSE41();
}
#endif // WEBP_USE_SSE41
}
#if defined(WEBP_USE_NEON)

13
src/dsp/yuv.h
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@ -166,6 +166,19 @@ void VP8YuvToRgb56532_SSE2(const uint8_t* y, const uint8_t* u, const uint8_t* v,
#endif // WEBP_USE_SSE2
//-----------------------------------------------------------------------------
// SSE41 extra functions (mostly for upsampling_sse41.c)
#if defined(WEBP_USE_SSE41)
// Process 32 pixels and store the result (16b, 24b or 32b per pixel) in *dst.
void VP8YuvToRgb32_SSE41(const uint8_t* y, const uint8_t* u, const uint8_t* v,
uint8_t* dst);
void VP8YuvToBgr32_SSE41(const uint8_t* y, const uint8_t* u, const uint8_t* v,
uint8_t* dst);
#endif // WEBP_USE_SSE41
//------------------------------------------------------------------------------
// RGB -> YUV conversion

4
src/dsp/yuv_sse2.c
View File

@ -180,7 +180,7 @@ static WEBP_INLINE void PlanarTo24b_SSE2(__m128i* const in0, __m128i* const in1,
// Repeat the same permutations twice more:
// r0r4g0g4 | b0b4r1r5 | g1g5b1b5 | r2r6g2g6 | b2b6r3r7 | g3g7b3b7
// r0g0b0r1 | g1b1r2g2 | b2r3g3b3 | r4g4b4r5 | g5b5r6g6 | b6r7g7b7
VP8PlanarTo24b(in0, in1, in2, in3, in4, in5);
VP8PlanarTo24b_SSE2(in0, in1, in2, in3, in4, in5);
_mm_storeu_si128((__m128i*)(rgb + 0), *in0);
_mm_storeu_si128((__m128i*)(rgb + 16), *in1);
@ -492,7 +492,7 @@ static WEBP_INLINE void RGB32PackedToPlanar_SSE2(const uint32_t* const argb,
__m128i a1 = LOAD_16(argb + 4);
__m128i a2 = LOAD_16(argb + 8);
__m128i a3 = LOAD_16(argb + 12);
VP8L32bToPlanar(&a0, &a1, &a2, &a3);
VP8L32bToPlanar_SSE2(&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);

613
src/dsp/yuv_sse41.c Normal file
View File

@ -0,0 +1,613 @@
// Copyright 2014 Google Inc. All Rights Reserved.
//
// Use of this source code is governed by a BSD-style license
// that can be found in the COPYING 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.
// -----------------------------------------------------------------------------
//
// YUV->RGB conversion functions
//
// Author: Skal (pascal.massimino@gmail.com)
#include "src/dsp/yuv.h"
#if defined(WEBP_USE_SSE41)
#include "src/dsp/common_sse41.h"
#include <stdlib.h>
#include <smmintrin.h>
//-----------------------------------------------------------------------------
// Convert spans of 32 pixels to various RGB formats for the fancy upsampler.
// These constants are 14b fixed-point version of ITU-R BT.601 constants.
// R = (19077 * y + 26149 * v - 14234) >> 6
// G = (19077 * y - 6419 * u - 13320 * v + 8708) >> 6
// B = (19077 * y + 33050 * u - 17685) >> 6
static void ConvertYUV444ToRGB_SSE41(const __m128i* const Y0,
const __m128i* const U0,
const __m128i* const V0,
__m128i* const R,
__m128i* const G,
__m128i* const B) {
const __m128i k19077 = _mm_set1_epi16(19077);
const __m128i k26149 = _mm_set1_epi16(26149);
const __m128i k14234 = _mm_set1_epi16(14234);
// 33050 doesn't fit in a signed short: only use this with unsigned arithmetic
const __m128i k33050 = _mm_set1_epi16((short)33050);
const __m128i k17685 = _mm_set1_epi16(17685);
const __m128i k6419 = _mm_set1_epi16(6419);
const __m128i k13320 = _mm_set1_epi16(13320);
const __m128i k8708 = _mm_set1_epi16(8708);
const __m128i Y1 = _mm_mulhi_epu16(*Y0, k19077);
const __m128i R0 = _mm_mulhi_epu16(*V0, k26149);
const __m128i R1 = _mm_sub_epi16(Y1, k14234);
const __m128i R2 = _mm_add_epi16(R1, R0);
const __m128i G0 = _mm_mulhi_epu16(*U0, k6419);
const __m128i G1 = _mm_mulhi_epu16(*V0, k13320);
const __m128i G2 = _mm_add_epi16(Y1, k8708);
const __m128i G3 = _mm_add_epi16(G0, G1);
const __m128i G4 = _mm_sub_epi16(G2, G3);
// be careful with the saturated *unsigned* arithmetic here!
const __m128i B0 = _mm_mulhi_epu16(*U0, k33050);
const __m128i B1 = _mm_adds_epu16(B0, Y1);
const __m128i B2 = _mm_subs_epu16(B1, k17685);
// use logical shift for B2, which can be larger than 32767
*R = _mm_srai_epi16(R2, 6); // range: [-14234, 30815]
*G = _mm_srai_epi16(G4, 6); // range: [-10953, 27710]
*B = _mm_srli_epi16(B2, 6); // range: [0, 34238]
}
// Load the bytes into the *upper* part of 16b words. That's "<< 8", basically.
static WEBP_INLINE __m128i Load_HI_16_SSE41(const uint8_t* src) {
const __m128i zero = _mm_setzero_si128();
return _mm_unpacklo_epi8(zero, _mm_loadl_epi64((const __m128i*)src));
}
// Load and replicate the U/V samples
static WEBP_INLINE __m128i Load_UV_HI_8_SSE41(const uint8_t* src) {
const __m128i zero = _mm_setzero_si128();
const __m128i tmp0 = _mm_cvtsi32_si128(*(const uint32_t*)src);
const __m128i tmp1 = _mm_unpacklo_epi8(zero, tmp0);
return _mm_unpacklo_epi16(tmp1, tmp1); // replicate samples
}
// Convert 32 samples of YUV444 to R/G/B
static void YUV444ToRGB_SSE41(const uint8_t* const y,
const uint8_t* const u,
const uint8_t* const v,
__m128i* const R, __m128i* const G,
__m128i* const B) {
const __m128i Y0 = Load_HI_16_SSE41(y), U0 = Load_HI_16_SSE41(u),
V0 = Load_HI_16_SSE41(v);
ConvertYUV444ToRGB_SSE41(&Y0, &U0, &V0, R, G, B);
}
// Convert 32 samples of YUV420 to R/G/B
static void YUV420ToRGB_SSE41(const uint8_t* const y,
const uint8_t* const u,
const uint8_t* const v,
__m128i* const R, __m128i* const G,
__m128i* const B) {
const __m128i Y0 = Load_HI_16_SSE41(y), U0 = Load_UV_HI_8_SSE41(u),
V0 = Load_UV_HI_8_SSE41(v);
ConvertYUV444ToRGB_SSE41(&Y0, &U0, &V0, R, G, B);
}
// 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_SSE41(
__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
// around as follows:
// Input:
// r0r1r2r3 | r4r5r6r7 | g0g1g2g3 | g4g5g6g7 | b0b1b2b3 | b4b5b6b7
// Split the 6 registers in two sets of 3 registers: the first set as the even
// 8b bytes, the second the odd ones:
// r0r2r4r6 | g0g2g4g6 | b0b2b4b6 | r1r3r5r7 | g1g3g5g7 | b1b3b5b7
// Repeat the same permutations twice more:
// r0r4g0g4 | b0b4r1r5 | g1g5b1b5 | r2r6g2g6 | b2b6r3r7 | g3g7b3b7
// r0g0b0r1 | g1b1r2g2 | b2r3g3b3 | r4g4b4r5 | g5b5r6g6 | b6r7g7b7
VP8PlanarTo24b_SSE41(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 VP8YuvToRgb32_SSE41(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 rgb0, rgb1, rgb2, rgb3, rgb4, rgb5;
YUV444ToRGB_SSE41(y + 0, u + 0, v + 0, &R0, &G0, &B0);
YUV444ToRGB_SSE41(y + 8, u + 8, v + 8, &R1, &G1, &B1);
YUV444ToRGB_SSE41(y + 16, u + 16, v + 16, &R2, &G2, &B2);
YUV444ToRGB_SSE41(y + 24, u + 24, v + 24, &R3, &G3, &B3);
// Cast to 8b and store as RRRRGGGGBBBB.
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_SSE41(&rgb0, &rgb1, &rgb2, &rgb3, &rgb4, &rgb5, dst);
}
void VP8YuvToBgr32_SSE41(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 bgr0, bgr1, bgr2, bgr3, bgr4, bgr5;
YUV444ToRGB_SSE41(y + 0, u + 0, v + 0, &R0, &G0, &B0);
YUV444ToRGB_SSE41(y + 8, u + 8, v + 8, &R1, &G1, &B1);
YUV444ToRGB_SSE41(y + 16, u + 16, v + 16, &R2, &G2, &B2);
YUV444ToRGB_SSE41(y + 24, u + 24, v + 24, &R3, &G3, &B3);
// Cast to 8b and store as BBBBGGGGRRRR.
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_SSE41(&bgr0, &bgr1, &bgr2, &bgr3, &bgr4, &bgr5, dst);
}
//-----------------------------------------------------------------------------
// Arbitrary-length row conversion functions
static void YuvToRgbRow_SSE41(const uint8_t* y,
const uint8_t* u, const uint8_t* v,
uint8_t* dst, int len) {
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 rgb0, rgb1, rgb2, rgb3, rgb4, rgb5;
YUV420ToRGB_SSE41(y + 0, u + 0, v + 0, &R0, &G0, &B0);
YUV420ToRGB_SSE41(y + 8, u + 4, v + 4, &R1, &G1, &B1);
YUV420ToRGB_SSE41(y + 16, u + 8, v + 8, &R2, &G2, &B2);
YUV420ToRGB_SSE41(y + 24, u + 12, v + 12, &R3, &G3, &B3);
// Cast to 8b and store as RRRRGGGGBBBB.
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_SSE41(&rgb0, &rgb1, &rgb2, &rgb3, &rgb4, &rgb5, dst);
y += 32;
u += 16;
v += 16;
}
for (; n < len; ++n) { // Finish off
VP8YuvToRgb(y[0], u[0], v[0], dst);
dst += 3;
y += 1;
u += (n & 1);
v += (n & 1);
}
}
static void YuvToBgrRow_SSE41(const uint8_t* y,
const uint8_t* u, const uint8_t* v,
uint8_t* dst, int len) {
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 bgr0, bgr1, bgr2, bgr3, bgr4, bgr5;
YUV420ToRGB_SSE41(y + 0, u + 0, v + 0, &R0, &G0, &B0);
YUV420ToRGB_SSE41(y + 8, u + 4, v + 4, &R1, &G1, &B1);
YUV420ToRGB_SSE41(y + 16, u + 8, v + 8, &R2, &G2, &B2);
YUV420ToRGB_SSE41(y + 24, u + 12, v + 12, &R3, &G3, &B3);
// Cast to 8b and store as BBBBGGGGRRRR.
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_SSE41(&bgr0, &bgr1, &bgr2, &bgr3, &bgr4, &bgr5, dst);
y += 32;
u += 16;
v += 16;
}
for (; n < len; ++n) { // Finish off
VP8YuvToBgr(y[0], u[0], v[0], dst);
dst += 3;
y += 1;
u += (n & 1);
v += (n & 1);
}
}
//------------------------------------------------------------------------------
// Entry point
extern void WebPInitSamplersSSE41(void);
WEBP_TSAN_IGNORE_FUNCTION void WebPInitSamplersSSE41(void) {
WebPSamplers[MODE_RGB] = YuvToRgbRow_SSE41;
WebPSamplers[MODE_BGR] = YuvToBgrRow_SSE41;
}
//------------------------------------------------------------------------------
// RGB24/32 -> YUV converters
// Load eight 16b-words from *src.
#define LOAD_16(src) _mm_loadu_si128((const __m128i*)(src))
// Store either 16b-words into *dst
#define STORE_16(V, dst) _mm_storeu_si128((__m128i*)(dst), (V))
#define WEBP_SSE41_SHUFF(OUT) do { \
const __m128i tmp0 = _mm_shuffle_epi8(A0, shuff0); \
const __m128i tmp1 = _mm_shuffle_epi8(A1, shuff1); \
const __m128i tmp2 = _mm_shuffle_epi8(A2, shuff2); \
const __m128i tmp3 = _mm_shuffle_epi8(A3, shuff0); \
const __m128i tmp4 = _mm_shuffle_epi8(A4, shuff1); \
const __m128i tmp5 = _mm_shuffle_epi8(A5, shuff2); \
\
/* OR everything to get one channel */ \
const __m128i tmp6 = _mm_or_si128(tmp0, tmp1); \
const __m128i tmp7 = _mm_or_si128(tmp3, tmp4); \
out[OUT + 0] = _mm_or_si128(tmp6, tmp2); \
out[OUT + 1] = _mm_or_si128(tmp7, tmp5); \
} while (0);
// Unpack the 8b input rgbrgbrgbrgb ... as contiguous registers:
// rrrr... rrrr... gggg... gggg... bbbb... bbbb....
// Similar to PlanarTo24bHelper(), but in reverse order.
static WEBP_INLINE void RGB24PackedToPlanar_SSE41(
const uint8_t* const rgb, __m128i* const out /*out[6]*/) {
const __m128i A0 = _mm_loadu_si128((const __m128i*)(rgb + 0));
const __m128i A1 = _mm_loadu_si128((const __m128i*)(rgb + 16));
const __m128i A2 = _mm_loadu_si128((const __m128i*)(rgb + 32));
const __m128i A3 = _mm_loadu_si128((const __m128i*)(rgb + 48));
const __m128i A4 = _mm_loadu_si128((const __m128i*)(rgb + 64));
const __m128i A5 = _mm_loadu_si128((const __m128i*)(rgb + 80));
// Compute RR.
{
const __m128i shuff0 = _mm_set_epi8(
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 15, 12, 9, 6, 3, 0);
const __m128i shuff1 = _mm_set_epi8(
-1, -1, -1, -1, -1, 14, 11, 8, 5, 2, -1, -1, -1, -1, -1, -1);
const __m128i shuff2 = _mm_set_epi8(
13, 10, 7, 4, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1);
WEBP_SSE41_SHUFF(0)
}
// Compute GG.
{
const __m128i shuff0 = _mm_set_epi8(
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 13, 10, 7, 4, 1);
const __m128i shuff1 = _mm_set_epi8(
-1, -1, -1, -1, -1, 15, 12, 9, 6, 3, 0, -1, -1, -1, -1, -1);
const __m128i shuff2 = _mm_set_epi8(
14, 11, 8, 5, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1);
WEBP_SSE41_SHUFF(2)
}
// Compute BB.
{
const __m128i shuff0 = _mm_set_epi8(
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 14, 11, 8, 5, 2);
const __m128i shuff1 = _mm_set_epi8(
-1, -1, -1, -1, -1, -1, 13, 10, 7, 4, 1, -1, -1, -1, -1, -1);
const __m128i shuff2 = _mm_set_epi8(
15, 12, 9, 6, 3, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1);
WEBP_SSE41_SHUFF(4)
}
}
#undef WEBP_SSE41_SHUFF
// Convert 8 packed ARGB to r[], g[], b[]
static WEBP_INLINE void RGB32PackedToPlanar_SSE41(
const uint32_t* const argb, __m128i* const rgb /*in[6]*/) {
const __m128i zero = _mm_setzero_si128();
__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_SSE41(&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
// It's a macro and not a function because we need to use immediate values with
// srai_epi32, e.g.
#define TRANSFORM(RG_LO, RG_HI, GB_LO, GB_HI, MULT_RG, MULT_GB, \
ROUNDER, DESCALE_FIX, OUT) do { \
const __m128i V0_lo = _mm_madd_epi16(RG_LO, MULT_RG); \
const __m128i V0_hi = _mm_madd_epi16(RG_HI, MULT_RG); \
const __m128i V1_lo = _mm_madd_epi16(GB_LO, MULT_GB); \
const __m128i V1_hi = _mm_madd_epi16(GB_HI, MULT_GB); \
const __m128i V2_lo = _mm_add_epi32(V0_lo, V1_lo); \
const __m128i V2_hi = _mm_add_epi32(V0_hi, V1_hi); \
const __m128i V3_lo = _mm_add_epi32(V2_lo, ROUNDER); \
const __m128i V3_hi = _mm_add_epi32(V2_hi, ROUNDER); \
const __m128i V5_lo = _mm_srai_epi32(V3_lo, DESCALE_FIX); \
const __m128i V5_hi = _mm_srai_epi32(V3_hi, DESCALE_FIX); \
(OUT) = _mm_packs_epi32(V5_lo, V5_hi); \
} while (0)
#define MK_CST_16(A, B) _mm_set_epi16((B), (A), (B), (A), (B), (A), (B), (A))
static WEBP_INLINE void ConvertRGBToY_SSE41(const __m128i* const R,
const __m128i* const G,
const __m128i* const B,
__m128i* const Y) {
const __m128i kRG_y = MK_CST_16(16839, 33059 - 16384);
const __m128i kGB_y = MK_CST_16(16384, 6420);
const __m128i kHALF_Y = _mm_set1_epi32((16 << YUV_FIX) + YUV_HALF);
const __m128i RG_lo = _mm_unpacklo_epi16(*R, *G);
const __m128i RG_hi = _mm_unpackhi_epi16(*R, *G);
const __m128i GB_lo = _mm_unpacklo_epi16(*G, *B);
const __m128i GB_hi = _mm_unpackhi_epi16(*G, *B);
TRANSFORM(RG_lo, RG_hi, GB_lo, GB_hi, kRG_y, kGB_y, kHALF_Y, YUV_FIX, *Y);
}
static WEBP_INLINE void ConvertRGBToUV_SSE41(const __m128i* const R,
const __m128i* const G,
const __m128i* const B,
__m128i* const U,
__m128i* const V) {
const __m128i kRG_u = MK_CST_16(-9719, -19081);
const __m128i kGB_u = MK_CST_16(0, 28800);
const __m128i kRG_v = MK_CST_16(28800, 0);
const __m128i kGB_v = MK_CST_16(-24116, -4684);
const __m128i kHALF_UV = _mm_set1_epi32(((128 << YUV_FIX) + YUV_HALF) << 2);
const __m128i RG_lo = _mm_unpacklo_epi16(*R, *G);
const __m128i RG_hi = _mm_unpackhi_epi16(*R, *G);
const __m128i GB_lo = _mm_unpacklo_epi16(*G, *B);
const __m128i GB_hi = _mm_unpackhi_epi16(*G, *B);
TRANSFORM(RG_lo, RG_hi, GB_lo, GB_hi, kRG_u, kGB_u,
kHALF_UV, YUV_FIX + 2, *U);
TRANSFORM(RG_lo, RG_hi, GB_lo, GB_hi, kRG_v, kGB_v,
kHALF_UV, YUV_FIX + 2, *V);
}
#undef MK_CST_16
#undef TRANSFORM
static void ConvertRGB24ToY_SSE41(const uint8_t* rgb, uint8_t* y, int width) {
const int max_width = width & ~31;
int i;
for (i = 0; i < max_width; rgb += 3 * 16 * 2) {
__m128i rgb_plane[6];
int j;
RGB24PackedToPlanar_SSE41(rgb, rgb_plane);
for (j = 0; j < 2; ++j, i += 16) {
const __m128i zero = _mm_setzero_si128();
__m128i r, g, b, Y0, Y1;
// Convert to 16-bit Y.
r = _mm_unpacklo_epi8(rgb_plane[0 + j], zero);
g = _mm_unpacklo_epi8(rgb_plane[2 + j], zero);
b = _mm_unpacklo_epi8(rgb_plane[4 + j], zero);
ConvertRGBToY_SSE41(&r, &g, &b, &Y0);
// Convert to 16-bit Y.
r = _mm_unpackhi_epi8(rgb_plane[0 + j], zero);
g = _mm_unpackhi_epi8(rgb_plane[2 + j], zero);
b = _mm_unpackhi_epi8(rgb_plane[4 + j], zero);
ConvertRGBToY_SSE41(&r, &g, &b, &Y1);
// Cast to 8-bit and store.
STORE_16(_mm_packus_epi16(Y0, Y1), y + i);
}
}
for (; i < width; ++i, rgb += 3) { // left-over
y[i] = VP8RGBToY(rgb[0], rgb[1], rgb[2], YUV_HALF);
}
}
static void ConvertBGR24ToY_SSE41(const uint8_t* bgr, uint8_t* y, int width) {
const int max_width = width & ~31;
int i;
for (i = 0; i < max_width; bgr += 3 * 16 * 2) {
__m128i bgr_plane[6];
int j;
RGB24PackedToPlanar_SSE41(bgr, bgr_plane);
for (j = 0; j < 2; ++j, i += 16) {
const __m128i zero = _mm_setzero_si128();
__m128i r, g, b, Y0, Y1;
// Convert to 16-bit Y.
b = _mm_unpacklo_epi8(bgr_plane[0 + j], zero);
g = _mm_unpacklo_epi8(bgr_plane[2 + j], zero);
r = _mm_unpacklo_epi8(bgr_plane[4 + j], zero);
ConvertRGBToY_SSE41(&r, &g, &b, &Y0);
// Convert to 16-bit Y.
b = _mm_unpackhi_epi8(bgr_plane[0 + j], zero);
g = _mm_unpackhi_epi8(bgr_plane[2 + j], zero);
r = _mm_unpackhi_epi8(bgr_plane[4 + j], zero);
ConvertRGBToY_SSE41(&r, &g, &b, &Y1);
// Cast to 8-bit and store.
STORE_16(_mm_packus_epi16(Y0, Y1), y + i);
}
}
for (; i < width; ++i, bgr += 3) { // left-over
y[i] = VP8RGBToY(bgr[2], bgr[1], bgr[0], YUV_HALF);
}
}
static void ConvertARGBToY_SSE41(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 Y0, Y1, rgb[6];
RGB32PackedToPlanar_SSE41(&argb[i], rgb);
ConvertRGBToY_SSE41(&rgb[0], &rgb[2], &rgb[4], &Y0);
ConvertRGBToY_SSE41(&rgb[1], &rgb[3], &rgb[5], &Y1);
STORE_16(_mm_packus_epi16(Y0, Y1), y + i);
}
for (; i < width; ++i) { // left-over
const uint32_t p = argb[i];
y[i] = VP8RGBToY((p >> 16) & 0xff, (p >> 8) & 0xff, (p >> 0) & 0xff,
YUV_HALF);
}
}
// Horizontal add (doubled) of two 16b values, result is 16b.
// in: A | B | C | D | ... -> out: 2*(A+B) | 2*(C+D) | ...
static void HorizontalAddPack_SSE41(const __m128i* const A,
const __m128i* const B,
__m128i* const out) {
const __m128i k2 = _mm_set1_epi16(2);
const __m128i C = _mm_madd_epi16(*A, k2);
const __m128i D = _mm_madd_epi16(*B, k2);
*out = _mm_packs_epi32(C, D);
}
static void ConvertARGBToUV_SSE41(const uint32_t* argb,
uint8_t* u, uint8_t* v,
int src_width, int do_store) {
const int max_width = src_width & ~31;
int i;
for (i = 0; i < max_width; i += 32, u += 16, v += 16) {
__m128i rgb[6], U0, V0, U1, V1;
RGB32PackedToPlanar_SSE41(&argb[i], rgb);
HorizontalAddPack_SSE41(&rgb[0], &rgb[1], &rgb[0]);
HorizontalAddPack_SSE41(&rgb[2], &rgb[3], &rgb[2]);
HorizontalAddPack_SSE41(&rgb[4], &rgb[5], &rgb[4]);
ConvertRGBToUV_SSE41(&rgb[0], &rgb[2], &rgb[4], &U0, &V0);
RGB32PackedToPlanar_SSE41(&argb[i + 16], rgb);
HorizontalAddPack_SSE41(&rgb[0], &rgb[1], &rgb[0]);
HorizontalAddPack_SSE41(&rgb[2], &rgb[3], &rgb[2]);
HorizontalAddPack_SSE41(&rgb[4], &rgb[5], &rgb[4]);
ConvertRGBToUV_SSE41(&rgb[0], &rgb[2], &rgb[4], &U1, &V1);
U0 = _mm_packus_epi16(U0, U1);
V0 = _mm_packus_epi16(V0, V1);
if (!do_store) {
const __m128i prev_u = LOAD_16(u);
const __m128i prev_v = LOAD_16(v);
U0 = _mm_avg_epu8(U0, prev_u);
V0 = _mm_avg_epu8(V0, prev_v);
}
STORE_16(U0, u);
STORE_16(V0, v);
}
if (i < src_width) { // left-over
WebPConvertARGBToUV_C(argb + i, u, v, src_width - i, do_store);
}
}
// Convert 16 packed ARGB 16b-values to r[], g[], b[]
static WEBP_INLINE void RGBA32PackedToPlanar_16b_SSE41(
const uint16_t* const rgbx,
__m128i* const r, __m128i* const g, __m128i* const b) {
const __m128i in0 = LOAD_16(rgbx + 0); // r0 | g0 | b0 |x| r1 | g1 | b1 |x
const __m128i in1 = LOAD_16(rgbx + 8); // r2 | g2 | b2 |x| r3 | g3 | b3 |x
const __m128i in2 = LOAD_16(rgbx + 16); // r4 | ...
const __m128i in3 = LOAD_16(rgbx + 24); // r6 | ...
// aarrggbb as 16-bit.
const __m128i shuff0 =
_mm_set_epi8(-1, -1, -1, -1, 13, 12, 5, 4, 11, 10, 3, 2, 9, 8, 1, 0);
const __m128i shuff1 =
_mm_set_epi8(13, 12, 5, 4, -1, -1, -1, -1, 11, 10, 3, 2, 9, 8, 1, 0);
const __m128i A0 = _mm_shuffle_epi8(in0, shuff0);
const __m128i A1 = _mm_shuffle_epi8(in1, shuff1);
const __m128i A2 = _mm_shuffle_epi8(in2, shuff0);
const __m128i A3 = _mm_shuffle_epi8(in3, shuff1);
// R0R1G0G1
// B0B1****
// R2R3G2G3
// B2B3****
// (OR is used to free port 5 for the unpack)
const __m128i B0 = _mm_unpacklo_epi32(A0, A1);
const __m128i B1 = _mm_or_si128(A0, A1);
const __m128i B2 = _mm_unpacklo_epi32(A2, A3);
const __m128i B3 = _mm_or_si128(A2, A3);
// Gather the channels.
*r = _mm_unpacklo_epi64(B0, B2);
*g = _mm_unpackhi_epi64(B0, B2);
*b = _mm_unpackhi_epi64(B1, B3);
}
static void ConvertRGBA32ToUV_SSE41(const uint16_t* rgb,
uint8_t* u, uint8_t* v, int width) {
const int max_width = width & ~15;
const uint16_t* const last_rgb = rgb + 4 * max_width;
while (rgb < last_rgb) {
__m128i r, g, b, U0, V0, U1, V1;
RGBA32PackedToPlanar_16b_SSE41(rgb + 0, &r, &g, &b);
ConvertRGBToUV_SSE41(&r, &g, &b, &U0, &V0);
RGBA32PackedToPlanar_16b_SSE41(rgb + 32, &r, &g, &b);
ConvertRGBToUV_SSE41(&r, &g, &b, &U1, &V1);
STORE_16(_mm_packus_epi16(U0, U1), u);
STORE_16(_mm_packus_epi16(V0, V1), v);
u += 16;
v += 16;
rgb += 2 * 32;
}
if (max_width < width) { // left-over
WebPConvertRGBA32ToUV_C(rgb, u, v, width - max_width);
}
}
//------------------------------------------------------------------------------
extern void WebPInitConvertARGBToYUVSSE41(void);
WEBP_TSAN_IGNORE_FUNCTION void WebPInitConvertARGBToYUVSSE41(void) {
WebPConvertARGBToY = ConvertARGBToY_SSE41;
WebPConvertARGBToUV = ConvertARGBToUV_SSE41;
WebPConvertRGB24ToY = ConvertRGB24ToY_SSE41;
WebPConvertBGR24ToY = ConvertBGR24ToY_SSE41;
WebPConvertRGBA32ToUV = ConvertRGBA32ToUV_SSE41;
}
//------------------------------------------------------------------------------
#else // !WEBP_USE_SSE41
WEBP_DSP_INIT_STUB(WebPInitSamplersSSE41)
WEBP_DSP_INIT_STUB(WebPInitConvertARGBToYUVSSE41)
#endif // WEBP_USE_SSE41