зеркало из https://github.com/mozilla/gecko-dev.git
Bug 1551088 - Part 3. Add SSSE3 and AVX2 implementations of unpacking. r=lsalzman
These variants perform significantly faster than the C implementations according to local testing and that in treeherder. Image decoding is as much as 40% faster in the most simple cases (solid green PNG image). Differential Revision: https://phabricator.services.mozilla.com/D46446 --HG-- extra : moz-landing-system : lando
This commit is contained in:
Andrew Osmond
Родитель
8663f03103
Коммит
d774b3ffc7
|
|
@ -151,6 +151,20 @@ void SwizzleRow_SSE2(const uint8_t*, uint8_t*, int32_t);
|
|||
SwizzleRow_SSE2<ShouldSwapRB(aSrcFormat, aDstFormat), \
|
||||
ShouldForceOpaque(aSrcFormat, aDstFormat)>)
|
||||
|
||||
template <bool aSwapRB>
|
||||
void UnpackRowRGB24_SSSE3(const uint8_t*, uint8_t*, int32_t);
|
||||
|
||||
#define UNPACK_ROW_RGB_SSSE3(aDstFormat) \
|
||||
FORMAT_CASE_ROW(SurfaceFormat::R8G8B8, aDstFormat, \
|
||||
UnpackRowRGB24_SSSE3<ShouldSwapRB(SurfaceFormat::R8G8B8, aDstFormat)>)
|
||||
|
||||
template <bool aSwapRB>
|
||||
void UnpackRowRGB24_AVX2(const uint8_t*, uint8_t*, int32_t);
|
||||
|
||||
#define UNPACK_ROW_RGB_AVX2(aDstFormat) \
|
||||
FORMAT_CASE_ROW(SurfaceFormat::R8G8B8, aDstFormat, \
|
||||
UnpackRowRGB24_AVX2<ShouldSwapRB(SurfaceFormat::R8G8B8, aDstFormat)>)
|
||||
|
||||
#endif
|
||||
|
||||
#ifdef USE_NEON
|
||||
|
|
@ -991,6 +1005,24 @@ bool SwizzleData(const uint8_t* aSrc, int32_t aSrcStride,
|
|||
|
||||
SwizzleRowFn SwizzleRow(SurfaceFormat aSrcFormat, SurfaceFormat aDstFormat) {
|
||||
#ifdef USE_SSE2
|
||||
if (mozilla::supports_avx2()) switch (FORMAT_KEY(aSrcFormat, aDstFormat)) {
|
||||
UNPACK_ROW_RGB_AVX2(SurfaceFormat::R8G8B8X8)
|
||||
UNPACK_ROW_RGB_AVX2(SurfaceFormat::R8G8B8A8)
|
||||
UNPACK_ROW_RGB_AVX2(SurfaceFormat::B8G8R8X8)
|
||||
UNPACK_ROW_RGB_AVX2(SurfaceFormat::B8G8R8A8)
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
if (mozilla::supports_ssse3()) switch (FORMAT_KEY(aSrcFormat, aDstFormat)) {
|
||||
UNPACK_ROW_RGB_SSSE3(SurfaceFormat::R8G8B8X8)
|
||||
UNPACK_ROW_RGB_SSSE3(SurfaceFormat::R8G8B8A8)
|
||||
UNPACK_ROW_RGB_SSSE3(SurfaceFormat::B8G8R8X8)
|
||||
UNPACK_ROW_RGB_SSSE3(SurfaceFormat::B8G8R8A8)
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
if (mozilla::supports_sse2()) switch (FORMAT_KEY(aSrcFormat, aDstFormat)) {
|
||||
SWIZZLE_ROW_SSE2(SurfaceFormat::B8G8R8A8, SurfaceFormat::R8G8B8A8)
|
||||
SWIZZLE_ROW_SSE2(SurfaceFormat::B8G8R8X8, SurfaceFormat::R8G8B8X8)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,84 @@
|
|||
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
||||
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
||||
/* This Source Code Form is subject to the terms of the Mozilla Public
|
||||
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
||||
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
||||
|
||||
#include "Swizzle.h"
|
||||
|
||||
#include <immintrin.h>
|
||||
#include <tmmintrin.h>
|
||||
|
||||
namespace mozilla {
|
||||
namespace gfx {
|
||||
|
||||
template <bool aSwapRB>
|
||||
void UnpackRowRGB24_SSSE3(const uint8_t* aSrc, uint8_t* aDst, int32_t aLength);
|
||||
|
||||
template <bool aSwapRB>
|
||||
void UnpackRowRGB24_AVX2(const uint8_t* aSrc, uint8_t* aDst, int32_t aLength) {
|
||||
// Because this implementation will read an additional 8 bytes of data that
|
||||
// is ignored and masked over, we cannot use the accelerated version for the
|
||||
// last 1-8 bytes to guarantee we don't access memory outside the buffer.
|
||||
if (aLength < 9) {
|
||||
UnpackRowRGB24_SSSE3<aSwapRB>(aSrc, aDst, aLength);
|
||||
return;
|
||||
}
|
||||
|
||||
// Because we are expanding, we can only process the data back to front in
|
||||
// case we are performing this in place.
|
||||
int32_t alignedRow = (aLength - 1) & ~7;
|
||||
int32_t remainder = aLength - alignedRow;
|
||||
|
||||
const uint8_t* src = aSrc + alignedRow * 3;
|
||||
uint8_t* dst = aDst + alignedRow * 4;
|
||||
|
||||
// Handle any 1-8 remaining pixels.
|
||||
UnpackRowRGB24_SSSE3<aSwapRB>(src, dst, remainder);
|
||||
|
||||
// Used to shuffle the two final 32-bit words which we ignore into the last
|
||||
// 32-bit word of each 128-bit lane, such that
|
||||
// RGBR GBRG BRGB RGBR GBRG BRGB RGBR GBRG
|
||||
// BRGB RGBR GBRG BRGB ZZZZ ZZZZ ZZZZ ZZZZ
|
||||
// becomes
|
||||
// RGBR GBRG BRGB RGBR GBRG BRGB ZZZZ ZZZZ
|
||||
// RGBR GBRG BRGB RGBR GBRG BRGB ZZZZ ZZZZ
|
||||
const __m256i discardMask = _mm256_set_epi32(7, 5, 4, 3, 6, 2, 1, 0);
|
||||
|
||||
// Used to shuffle 8-bit words within a 128-bit lane, such that we transform
|
||||
// RGBR GBRG BRGB RGBR GBRG BRGB ZZZZ ZZZZ
|
||||
// into
|
||||
// RGBZ RGBZ RGBZ RGBZ RGBZ RGBZ RGBZ RGBZ
|
||||
// or
|
||||
// BGRZ BGRZ BGRZ BGRZ BGRZ BGRZ BGRZ BGRZ
|
||||
const __m256i colorMask =
|
||||
aSwapRB ? _mm256_set_epi8(15, 9, 10, 11, 14, 6, 7, 8, 13, 3, 4, 5, 12, 0,
|
||||
1, 2, 15, 9, 10, 11, 14, 6, 7, 8, 13, 3, 4, 5,
|
||||
12, 0, 1, 2)
|
||||
: _mm256_set_epi8(15, 11, 10, 9, 14, 8, 7, 6, 13, 5, 4, 3, 12, 2,
|
||||
1, 0, 15, 11, 10, 9, 14, 8, 7, 6, 13, 5, 4, 3,
|
||||
12, 2, 1, 0);
|
||||
|
||||
// Used to transform RGBZ/BGRZ to RGBX/BGRX, or force the alpha opaque.
|
||||
const __m256i alphaMask = _mm256_set1_epi32(0xFF000000);
|
||||
|
||||
// Process all 8-pixel chunks as one vector.
|
||||
src -= 8 * 3;
|
||||
dst -= 8 * 4;
|
||||
while (src >= aSrc) {
|
||||
__m256i px = _mm256_loadu_si256(reinterpret_cast<const __m256i*>(src));
|
||||
px = _mm256_permutevar8x32_epi32(px, discardMask);
|
||||
px = _mm256_shuffle_epi8(px, colorMask);
|
||||
px = _mm256_or_si256(px, alphaMask);
|
||||
_mm256_storeu_si256(reinterpret_cast<__m256i*>(dst), px);
|
||||
src -= 8 * 3;
|
||||
dst -= 8 * 4;
|
||||
}
|
||||
}
|
||||
|
||||
// Force instantiation of swizzle variants here.
|
||||
template void UnpackRowRGB24_AVX2<false>(const uint8_t*, uint8_t*, int32_t);
|
||||
template void UnpackRowRGB24_AVX2<true>(const uint8_t*, uint8_t*, int32_t);
|
||||
|
||||
} // namespace gfx
|
||||
} // namespace mozilla
|
||||
|
|
@ -0,0 +1,66 @@
|
|||
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
||||
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
||||
/* This Source Code Form is subject to the terms of the Mozilla Public
|
||||
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
||||
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
||||
|
||||
#include "Swizzle.h"
|
||||
|
||||
#include <emmintrin.h>
|
||||
#include <tmmintrin.h>
|
||||
|
||||
namespace mozilla {
|
||||
namespace gfx {
|
||||
|
||||
template <bool aSwapRB>
|
||||
void UnpackRowRGB24(const uint8_t* aSrc, uint8_t* aDst, int32_t aLength);
|
||||
|
||||
template <bool aSwapRB>
|
||||
void UnpackRowRGB24_SSSE3(const uint8_t* aSrc, uint8_t* aDst, int32_t aLength) {
|
||||
// Because this implementation will read an additional 4 bytes of data that
|
||||
// is ignored and masked over, we cannot use the accelerated version for the
|
||||
// last 1-4 bytes to guarantee we don't access memory outside the buffer.
|
||||
if (aLength < 5) {
|
||||
UnpackRowRGB24<aSwapRB>(aSrc, aDst, aLength);
|
||||
return;
|
||||
}
|
||||
|
||||
// Because we are expanding, we can only process the data back to front in
|
||||
// case we are performing this in place.
|
||||
int32_t alignedRow = (aLength - 1) & ~3;
|
||||
int32_t remainder = aLength - alignedRow;
|
||||
|
||||
const uint8_t* src = aSrc + alignedRow * 3;
|
||||
uint8_t* dst = aDst + alignedRow * 4;
|
||||
|
||||
// Handle 1-4 remaining pixels.
|
||||
UnpackRowRGB24<aSwapRB>(src, dst, remainder);
|
||||
|
||||
__m128i mask;
|
||||
if (aSwapRB) {
|
||||
mask = _mm_set_epi8(15, 9, 10, 11, 14, 6, 7, 8, 13, 3, 4, 5, 12, 0, 1, 2);
|
||||
} else {
|
||||
mask = _mm_set_epi8(15, 11, 10, 9, 14, 8, 7, 6, 13, 5, 4, 3, 12, 2, 1, 0);
|
||||
}
|
||||
|
||||
__m128i alpha = _mm_set1_epi32(0xFF000000);
|
||||
|
||||
// Process all 4-pixel chunks as one vector.
|
||||
src -= 4 * 3;
|
||||
dst -= 4 * 4;
|
||||
while (src >= aSrc) {
|
||||
__m128i px = _mm_loadu_si128(reinterpret_cast<const __m128i*>(src));
|
||||
px = _mm_shuffle_epi8(px, mask);
|
||||
px = _mm_or_si128(px, alpha);
|
||||
_mm_storeu_si128(reinterpret_cast<__m128i*>(dst), px);
|
||||
src -= 4 * 3;
|
||||
dst -= 4 * 4;
|
||||
}
|
||||
}
|
||||
|
||||
// Force instantiation of swizzle variants here.
|
||||
template void UnpackRowRGB24_SSSE3<false>(const uint8_t*, uint8_t*, int32_t);
|
||||
template void UnpackRowRGB24_SSSE3<true>(const uint8_t*, uint8_t*, int32_t);
|
||||
|
||||
} // namespace gfx
|
||||
} // namespace mozilla
|
||||
|
|
@ -145,7 +145,9 @@ if CONFIG['INTEL_ARCHITECTURE']:
|
|||
'FilterProcessingSSE2.cpp',
|
||||
'ImageScalingSSE2.cpp',
|
||||
'ssse3-scaler.c',
|
||||
'SwizzleAVX2.cpp',
|
||||
'SwizzleSSE2.cpp',
|
||||
'SwizzleSSSE3.cpp',
|
||||
]
|
||||
DEFINES['USE_SSE2'] = True
|
||||
# The file uses SSE2 intrinsics, so it needs special compile flags on some
|
||||
|
|
@ -153,7 +155,9 @@ if CONFIG['INTEL_ARCHITECTURE']:
|
|||
SOURCES['BlurSSE2.cpp'].flags += CONFIG['SSE2_FLAGS']
|
||||
SOURCES['FilterProcessingSSE2.cpp'].flags += CONFIG['SSE2_FLAGS']
|
||||
SOURCES['ImageScalingSSE2.cpp'].flags += CONFIG['SSE2_FLAGS']
|
||||
SOURCES['SwizzleAVX2.cpp'].flags += ['-mavx2']
|
||||
SOURCES['SwizzleSSE2.cpp'].flags += CONFIG['SSE2_FLAGS']
|
||||
SOURCES['SwizzleSSSE3.cpp'].flags += CONFIG['SSSE3_FLAGS']
|
||||
SOURCES['ssse3-scaler.c'].flags += CONFIG['SSSE3_FLAGS']
|
||||
elif CONFIG['CPU_ARCH'].startswith('mips'):
|
||||
SOURCES += [
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче