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ARGBToY_NEON for faster screencasts

Browse Source 
BUG=107
TEST=convert_test
Review URL: https://webrtc-codereview.appspot.com/892004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@423 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2012-10-16 22:34:07 +00:00
parent 1ffd35fdbb
commit 0908a701e9
6 changed files with 58 additions and 13 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: 421
Version: 423
License: BSD
License File: LICENSE

5
include/libyuv/row.h
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@ -153,6 +153,7 @@ extern "C" {
#define HAS_ARGBTORGB565ROW_NEON
#define HAS_ARGBTOARGB1555ROW_NEON
#define HAS_ARGBTOARGB4444ROW_NEON
#define HAS_ARGBTOYROW_NEON
#endif
// The following are available on Mips platforms
@ -259,6 +260,8 @@ void ABGRToUVRow_Unaligned_SSSE3(const uint8* src_argb0, int src_stride_argb,
void RGBAToUVRow_Unaligned_SSSE3(const uint8* src_argb0, int src_stride_argb,
uint8* dst_u, uint8* dst_v, int width);
void ARGBToYRow_NEON(const uint8* src_argb, uint8* dst_y, int pix);
void MirrorRow_SSSE3(const uint8* src, uint8* dst, int width);
void MirrorRow_SSE2(const uint8* src, uint8* dst, int width);
void MirrorRow_NEON(const uint8* src, uint8* dst, int width);
@ -613,6 +616,8 @@ void ABGRToUVRow_Any_SSSE3(const uint8* src_argb0, int src_stride_argb,
uint8* dst_u, uint8* dst_v, int width);
void RGBAToUVRow_Any_SSSE3(const uint8* src_argb0, int src_stride_argb,
uint8* dst_u, uint8* dst_v, int width);
void ARGBToYRow_Any_NEON(const uint8* src_argb, uint8* dst_y, int pix);
void I422ToARGBRow_Any_NEON(const uint8* y_buf,
const uint8* u_buf,
const uint8* v_buf,

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 421
#define LIBYUV_VERSION 423
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

9
source/convert.cc
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@ -909,6 +909,15 @@ int ARGBToI420(const uint8* src_argb, int src_stride_argb,
}
}
}
#elif defined(HAS_ARGBTOYROW_NEON)
if (TestCpuFlag(kCpuHasNEON)) {
if (width > 8) {
ARGBToYRow = ARGBToYRow_Any_NEON;
}
if (IS_ALIGNED(width, 8)) {
ARGBToYRow = ARGBToYRow_NEON;
}
}
#endif
for (int y = 0; y < height - 1; y += 2) {

25
source/row_common.cc
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@ -1083,27 +1083,30 @@ RGBANY(ARGBToARGB4444Row_Any_NEON, ARGBToARGB4444Row_NEON, ARGBToARGB4444Row_C,
#undef RGBANY
// RGB/YUV to Y does multiple of 16 with SIMD and last 16 with SIMD.
#define YANY(NAMEANY, ARGBTOY_SIMD, BPP) \
#define YANY(NAMEANY, ARGBTOY_SIMD, BPP, NUM) \
void NAMEANY(const uint8* src_argb, uint8* dst_y, int width) { \
ARGBTOY_SIMD(src_argb, dst_y, width - 16); \
ARGBTOY_SIMD(src_argb + (width - 16) * BPP, dst_y + (width - 16), 16); \
ARGBTOY_SIMD(src_argb, dst_y, width - NUM); \
ARGBTOY_SIMD(src_argb + (width - NUM) * BPP, dst_y + (width - NUM), NUM);\
}
#ifdef HAS_ARGBTOYROW_SSSE3
YANY(ARGBToYRow_Any_SSSE3, ARGBToYRow_Unaligned_SSSE3, 4)
YANY(BGRAToYRow_Any_SSSE3, BGRAToYRow_Unaligned_SSSE3, 4)
YANY(ABGRToYRow_Any_SSSE3, ABGRToYRow_Unaligned_SSSE3, 4)
YANY(ARGBToYRow_Any_SSSE3, ARGBToYRow_Unaligned_SSSE3, 4, 16)
YANY(BGRAToYRow_Any_SSSE3, BGRAToYRow_Unaligned_SSSE3, 4, 16)
YANY(ABGRToYRow_Any_SSSE3, ABGRToYRow_Unaligned_SSSE3, 4, 16)
#endif
#ifdef HAS_RGBATOYROW_SSSE3
YANY(RGBAToYRow_Any_SSSE3, RGBAToYRow_Unaligned_SSSE3, 4)
YANY(RGBAToYRow_Any_SSSE3, RGBAToYRow_Unaligned_SSSE3, 4, 16)
#endif
#ifdef HAS_ARGBTOYROW_NEON
YANY(ARGBToYRow_Any_NEON, ARGBToYRow_NEON, 4, 8)
#endif
#ifdef HAS_YUY2TOYROW_SSE2
YANY(YUY2ToYRow_Any_SSE2, YUY2ToYRow_Unaligned_SSE2, 2)
YANY(UYVYToYRow_Any_SSE2, UYVYToYRow_Unaligned_SSE2, 2)
YANY(YUY2ToYRow_Any_SSE2, YUY2ToYRow_Unaligned_SSE2, 2, 16)
YANY(UYVYToYRow_Any_SSE2, UYVYToYRow_Unaligned_SSE2, 2, 16)
#endif
#ifdef HAS_YUY2TOYROW_NEON
YANY(YUY2ToYRow_Any_NEON, YUY2ToYRow_NEON, 2)
YANY(UYVYToYRow_Any_NEON, UYVYToYRow_NEON, 2)
YANY(YUY2ToYRow_Any_NEON, YUY2ToYRow_NEON, 2, 16)
YANY(UYVYToYRow_Any_NEON, UYVYToYRow_NEON, 2, 16)
#endif
#undef YANY

28
source/row_neon.cc
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@ -995,6 +995,34 @@ void ARGBToARGB4444Row_NEON(const uint8* src_argb, uint8* dst_argb4444,
);
}
#endif // HAS_ARGBTOARGB4444ROW_NEON
#ifdef HAS_ARGBTOYROW_NEON
void ARGBToYRow_NEON(const uint8* src_argb, uint8* dst_y, int pix) {
asm volatile (
"vmov.u8 d4, #13 \n" // B * 0.1016 coefficient
"vmov.u8 d5, #65 \n" // G * 0.5078 coefficient
"vmov.u8 d6, #33 \n" // R * 0.2578 coefficient
"vmov.u8 d7, #16 \n" // Add 16 constant
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d1, d2, d3}, [%0]! \n" // load 8 pixels of ARGB.
"subs %2, %2, #8 \n" // 8 processed per loop.
"vmull.u8 q8, d0, d4 \n" // B
"vmlal.u8 q8, d1, d5 \n" // G
"vmlal.u8 q8, d2, d6 \n" // R
"vqrshrun.s16 d0, q8, #7 \n" // 16 bit to 8 bit Y
"vqadd.u8 d0, d7 \n"
"vst1.8 {d0}, [%1]! \n" // store 8 pixels Y.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_y), // %1
"+r"(pix) // %2
:
: "memory", "cc", "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "q8"
);
}
#endif // HAS_ARGBTOYROW_NEON
#endif // __ARM_NEON__
#ifdef __cplusplus