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scale to 3/4 or 3/8 with odd width destinations efficiently. previously if width was not multiple of what the simd loop would do (24), scaling would fall back on slower C code. This change allows SIMD to be used for most of the scaling and C for the remainder, improving efficiency.

Browse Source 
BUG=314
TESTED=set LIBYUV_WIDTH=1896 & ScaleDownBy3by4_*
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/48249004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1380 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2015-04-27 21:56:08 +00:00
parent 1ffb04b43e
commit 4e78b8dc2e
6 changed files with 120 additions and 20 deletions
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2
README.chromium
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@ -1,6 +1,6 @@
Name: libyuv
URL: http://code.google.com/p/libyuv/
Version: 1378
Version: 1379
License: BSD
License File: LICENSE

31
include/libyuv/scale_row.h
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@ -261,6 +261,22 @@ void ScaleRowDown4_Any_SSE2(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width);
void ScaleRowDown4Box_Any_SSE2(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width);
void ScaleRowDown34_Any_SSSE3(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width);
void ScaleRowDown34_1_Box_Any_SSSE3(const uint8* src_ptr,
ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width);
void ScaleRowDown34_0_Box_Any_SSSE3(const uint8* src_ptr,
ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width);
void ScaleRowDown38_Any_SSSE3(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width);
void ScaleRowDown38_3_Box_Any_SSSE3(const uint8* src_ptr,
ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width);
void ScaleRowDown38_2_Box_Any_SSSE3(const uint8* src_ptr,
ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width);
void ScaleAddRows_SSE2(const uint8* src_ptr, ptrdiff_t src_stride,
uint16* dst_ptr, int src_width, int src_height);
@ -358,6 +374,21 @@ void ScaleRowDown4_Any_NEON(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width);
void ScaleRowDown4Box_Any_NEON(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width);
void ScaleRowDown34_Any_NEON(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width);
void ScaleRowDown34_0_Box_Any_NEON(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width);
void ScaleRowDown34_1_Box_Any_NEON(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width);
// 32 -> 12
void ScaleRowDown38_Any_NEON(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width);
// 32x3 -> 12x1
void ScaleRowDown38_3_Box_Any_NEON(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width);
// 32x2 -> 12x1
void ScaleRowDown38_2_Box_Any_NEON(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width);
void ScaleAddRows_NEON(const uint8* src_ptr, ptrdiff_t src_stride,
uint16* dst_ptr, int src_width, int src_height);

2
include/libyuv/version.h
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@ -11,6 +11,6 @@
#ifndef INCLUDE_LIBYUV_VERSION_H_ // NOLINT
#define INCLUDE_LIBYUV_VERSION_H_
#define LIBYUV_VERSION 1378
#define LIBYUV_VERSION 1379
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

70
source/scale.cc
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@ -277,24 +277,42 @@ static void ScalePlaneDown34(int src_width, int src_height,
ScaleRowDown34_1 = ScaleRowDown34_1_Box_C;
}
#if defined(HAS_SCALEROWDOWN34_NEON)
if (TestCpuFlag(kCpuHasNEON) && (dst_width % 24 == 0)) {
if (TestCpuFlag(kCpuHasNEON)) {
if (!filtering) {
ScaleRowDown34_0 = ScaleRowDown34_NEON;
ScaleRowDown34_1 = ScaleRowDown34_NEON;
ScaleRowDown34_0 = ScaleRowDown34_Any_NEON;
ScaleRowDown34_1 = ScaleRowDown34_Any_NEON;
} else {
ScaleRowDown34_0 = ScaleRowDown34_0_Box_NEON;
ScaleRowDown34_1 = ScaleRowDown34_1_Box_NEON;
ScaleRowDown34_0 = ScaleRowDown34_0_Box_Any_NEON;
ScaleRowDown34_1 = ScaleRowDown34_1_Box_Any_NEON;
}
if (dst_width % 24 == 0) {
if (!filtering) {
ScaleRowDown34_0 = ScaleRowDown34_NEON;
ScaleRowDown34_1 = ScaleRowDown34_NEON;
} else {
ScaleRowDown34_0 = ScaleRowDown34_0_Box_NEON;
ScaleRowDown34_1 = ScaleRowDown34_1_Box_NEON;
}
}
}
#endif
#if defined(HAS_SCALEROWDOWN34_SSSE3)
if (TestCpuFlag(kCpuHasSSSE3) && (dst_width % 24 == 0)) {
if (TestCpuFlag(kCpuHasSSSE3)) {
if (!filtering) {
ScaleRowDown34_0 = ScaleRowDown34_SSSE3;
ScaleRowDown34_1 = ScaleRowDown34_SSSE3;
ScaleRowDown34_0 = ScaleRowDown34_Any_SSSE3;
ScaleRowDown34_1 = ScaleRowDown34_Any_SSSE3;
} else {
ScaleRowDown34_0 = ScaleRowDown34_0_Box_SSSE3;
ScaleRowDown34_1 = ScaleRowDown34_1_Box_SSSE3;
ScaleRowDown34_0 = ScaleRowDown34_0_Box_Any_SSSE3;
ScaleRowDown34_1 = ScaleRowDown34_1_Box_Any_SSSE3;
}
if (dst_width % 24 == 0) {
if (!filtering) {
ScaleRowDown34_0 = ScaleRowDown34_SSSE3;
ScaleRowDown34_1 = ScaleRowDown34_SSSE3;
} else {
ScaleRowDown34_0 = ScaleRowDown34_0_Box_SSSE3;
ScaleRowDown34_1 = ScaleRowDown34_1_Box_SSSE3;
}
}
}
#endif
@ -450,23 +468,41 @@ static void ScalePlaneDown38(int src_width, int src_height,
ScaleRowDown38_3 = ScaleRowDown38_3_Box_C;
ScaleRowDown38_2 = ScaleRowDown38_2_Box_C;
}
#if defined(HAS_SCALEROWDOWN38_NEON)
if (TestCpuFlag(kCpuHasNEON) && (dst_width % 12 == 0)) {
if (TestCpuFlag(kCpuHasNEON)) {
if (!filtering) {
ScaleRowDown38_3 = ScaleRowDown38_NEON;
ScaleRowDown38_2 = ScaleRowDown38_NEON;
ScaleRowDown38_3 = ScaleRowDown38_Any_NEON;
ScaleRowDown38_2 = ScaleRowDown38_Any_NEON;
} else {
ScaleRowDown38_3 = ScaleRowDown38_3_Box_NEON;
ScaleRowDown38_2 = ScaleRowDown38_2_Box_NEON;
ScaleRowDown38_3 = ScaleRowDown38_3_Box_Any_NEON;
ScaleRowDown38_2 = ScaleRowDown38_2_Box_Any_NEON;
}
if (dst_width % 12 == 0) {
if (!filtering) {
ScaleRowDown38_3 = ScaleRowDown38_NEON;
ScaleRowDown38_2 = ScaleRowDown38_NEON;
} else {
ScaleRowDown38_3 = ScaleRowDown38_3_Box_NEON;
ScaleRowDown38_2 = ScaleRowDown38_2_Box_NEON;
}
}
}
#endif
#if defined(HAS_SCALEROWDOWN38_SSSE3)
if (TestCpuFlag(kCpuHasSSSE3) && (dst_width % 24 == 0)) {
if (TestCpuFlag(kCpuHasSSSE3)) {
if (!filtering) {
ScaleRowDown38_3 = ScaleRowDown38_Any_SSSE3;
ScaleRowDown38_2 = ScaleRowDown38_Any_SSSE3;
} else {
ScaleRowDown38_3 = ScaleRowDown38_3_Box_Any_SSSE3;
ScaleRowDown38_2 = ScaleRowDown38_2_Box_Any_SSSE3;
}
if (dst_width % 12 == 0 && !filtering) {
ScaleRowDown38_3 = ScaleRowDown38_SSSE3;
ScaleRowDown38_2 = ScaleRowDown38_SSSE3;
} else {
}
if (dst_width % 6 == 0 && filtering) {
ScaleRowDown38_3 = ScaleRowDown38_3_Box_SSSE3;
ScaleRowDown38_2 = ScaleRowDown38_2_Box_SSSE3;
}

34
source/scale_any.cc
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@ -87,6 +87,40 @@ SDANY(ScaleRowDown4_Any_NEON, ScaleRowDown4_NEON, ScaleRowDown4_C, 4, 1, 7)
SDANY(ScaleRowDown4Box_Any_NEON, ScaleRowDown4Box_NEON, ScaleRowDown4Box_C,
4, 1, 7)
#endif
#ifdef HAS_SCALEROWDOWN34_SSSE3
SDANY(ScaleRowDown34_Any_SSSE3, ScaleRowDown34_SSSE3, ScaleRowDown34_C,
3 / 4, 1, 23)
SDANY(ScaleRowDown34_0_Box_Any_SSSE3, ScaleRowDown34_0_Box_SSSE3,
ScaleRowDown34_0_Box_C, 3 / 4, 1, 23)
SDANY(ScaleRowDown34_1_Box_Any_SSSE3, ScaleRowDown34_1_Box_SSSE3,
ScaleRowDown34_1_Box_C, 3 / 4, 1, 23)
#endif
#ifdef HAS_SCALEROWDOWN34_NEON
SDANY(ScaleRowDown34_Any_NEON, ScaleRowDown34_NEON, ScaleRowDown34_C,
3 / 4, 1, 23)
SDANY(ScaleRowDown34_0_Box_Any_NEON, ScaleRowDown34_0_Box_NEON,
ScaleRowDown34_0_Box_C, 3 / 4, 1, 23)
SDANY(ScaleRowDown34_1_Box_Any_NEON, ScaleRowDown34_1_Box_NEON,
ScaleRowDown34_1_Box_C, 3 / 4, 1, 23)
#endif
#ifdef HAS_SCALEROWDOWN38_SSSE3
SDANY(ScaleRowDown38_Any_SSSE3, ScaleRowDown38_SSSE3, ScaleRowDown38_C,
3 / 4, 1, 11)
SDANY(ScaleRowDown38_3_Box_Any_SSSE3, ScaleRowDown38_3_Box_SSSE3,
ScaleRowDown38_3_Box_C, 3 / 4, 1, 5)
SDANY(ScaleRowDown38_2_Box_Any_SSSE3, ScaleRowDown38_2_Box_SSSE3,
ScaleRowDown38_2_Box_C, 3 / 4, 1, 5)
#endif
#ifdef HAS_SCALEROWDOWN38_NEON
SDANY(ScaleRowDown38_Any_NEON, ScaleRowDown38_NEON, ScaleRowDown38_C,
3 / 4, 1, 11)
SDANY(ScaleRowDown38_3_Box_Any_NEON, ScaleRowDown38_3_Box_NEON,
ScaleRowDown38_3_Box_C, 3 / 4, 1, 11)
SDANY(ScaleRowDown38_2_Box_Any_NEON, ScaleRowDown38_2_Box_NEON,
ScaleRowDown38_2_Box_C, 3 / 4, 1, 11)
#endif
#undef SDANY
// Fixed scale down.

1
source/scale_win.cc
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@ -400,7 +400,6 @@ void ScaleRowDown4Box_SSE2(const uint8* src_ptr, ptrdiff_t src_stride,
// Produces three 8 byte values. For each 8 bytes, 16 bytes are read.
// Then shuffled to do the scaling.
// Note that movdqa+palign may be better than movdqu.
__declspec(naked)
void ScaleRowDown34_SSSE3(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width) {