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Shade ported to Neon

Browse Source 
BUG=167
TESTED=planar test Shade*
Review URL: https://webrtc-codereview.appspot.com/969014

git-svn-id: http://libyuv.googlecode.com/svn/trunk@509 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2012-12-03 20:36:40 +00:00
parent ef60ab0db4
commit b94b139e86
9 changed files with 156 additions and 105 deletions
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2
README.chromium
View File

@ -1,6 +1,6 @@
Name: libyuv
URL: http://code.google.com/p/libyuv/
Version: 508
Version: 509
License: BSD
License File: LICENSE

3
include/libyuv/row.h
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@ -223,6 +223,7 @@ extern "C" {
#define HAS_ARGBBLENDROW_NEON
#define HAS_ARGBATTENUATEROW_NEON
#define HAS_ARGBQUANTIZEROW_NEON
#define HAS_ARGBSHADEROW_NEON
#endif
// The following are available on Mips platforms
@ -1250,6 +1251,8 @@ void ARGBShadeRow_C(const uint8* src_argb, uint8* dst_argb, int width,
uint32 value);
void ARGBShadeRow_SSE2(const uint8* src_argb, uint8* dst_argb, int width,
uint32 value);
void ARGBShadeRow_NEON(const uint8* src_argb, uint8* dst_argb, int width,
uint32 value);
LIBYUV_API
void ARGBAffineRow_C(const uint8* src_argb, int src_argb_stride,

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 508
#define LIBYUV_VERSION 509
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

4
source/planar_functions.cc
View File

@ -1133,6 +1133,10 @@ int ARGBShade(const uint8* src_argb, int src_stride_argb,
IS_ALIGNED(dst_argb, 16) && IS_ALIGNED(dst_stride_argb, 16)) {
ARGBShadeRow = ARGBShadeRow_SSE2;
}
#elif defined(HAS_ARGBSHADEROW_NEON)
if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(width, 8)) {
ARGBShadeRow = ARGBShadeRow_NEON;
}
#endif
for (int y = 0; y < height; ++y) {

52
source/row_common.cc
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@ -665,6 +665,32 @@ void ARGBQuantizeRow_C(uint8* dst_argb, int scale, int interval_size,
}
}
#define REPEAT8(v) (v) | ((v) << 8)
#define SHADE(f, v) v * f >> 24
void ARGBShadeRow_C(const uint8* src_argb, uint8* dst_argb, int width,
uint32 value) {
const uint32 b_scale = REPEAT8(value & 0xff);
const uint32 g_scale = REPEAT8((value >> 8) & 0xff);
const uint32 r_scale = REPEAT8((value >> 16) & 0xff);
const uint32 a_scale = REPEAT8(value >> 24);
for (int i = 0; i < width; ++i) {
const uint32 b = REPEAT8(src_argb[0]);
const uint32 g = REPEAT8(src_argb[1]);
const uint32 r = REPEAT8(src_argb[2]);
const uint32 a = REPEAT8(src_argb[3]);
dst_argb[0] = SHADE(b, b_scale);
dst_argb[1] = SHADE(g, g_scale);
dst_argb[2] = SHADE(r, r_scale);
dst_argb[3] = SHADE(a, a_scale);
src_argb += 4;
dst_argb += 4;
}
}
#undef REPEAT8
#undef SHADE
void I400ToARGBRow_C(const uint8* src_y, uint8* dst_argb, int width) {
// Copy a Y to RGB.
for (int x = 0; x < width; ++x) {
@ -1512,32 +1538,6 @@ void CumulativeSumToAverageRow_C(const int32* tl, const int32* bl,
}
}
#define REPEAT8(v) (v) | ((v) << 8)
#define SHADE(f, v) v * f >> 24
void ARGBShadeRow_C(const uint8* src_argb, uint8* dst_argb, int width,
uint32 value) {
const uint32 b_scale = REPEAT8(value & 0xff);
const uint32 g_scale = REPEAT8((value >> 8) & 0xff);
const uint32 r_scale = REPEAT8((value >> 16) & 0xff);
const uint32 a_scale = REPEAT8(value >> 24);
for (int i = 0; i < width; ++i) {
const uint32 b = REPEAT8(src_argb[0]);
const uint32 g = REPEAT8(src_argb[1]);
const uint32 r = REPEAT8(src_argb[2]);
const uint32 a = REPEAT8(src_argb[3]);
dst_argb[0] = SHADE(b, b_scale);
dst_argb[1] = SHADE(g, g_scale);
dst_argb[2] = SHADE(r, r_scale);
dst_argb[3] = SHADE(a, a_scale);
src_argb += 4;
dst_argb += 4;
}
}
#undef REPEAT8
#undef SHADE
// Copy pixels from rotated source to destination row with a slope.
LIBYUV_API
void ARGBAffineRow_C(const uint8* src_argb, int src_argb_stride,

38
source/row_neon.cc
View File

@ -2510,7 +2510,43 @@ void ARGBQuantizeRow_NEON(uint8* dst_argb, int scale, int interval_size,
: "r"(scale), // %2
"r"(interval_size), // %3
"r"(interval_offset) // %4
: "cc", "memory", "q0", "q1", "q2", "q3", "q8", "q9", "q10"
: "cc", "memory", "q0", "q1", "q2", "q3", "q8", "q9", "q10"
);
}
// Shade 8 pixels at a time by specified value.
// NOTE vqrdmulh.s16 q10, q10, d0[0] must use a scaler register from 0 to 8.
void ARGBShadeRow_NEON(const uint8* src_argb, uint8* dst_argb, int width,
uint32 value) {
asm volatile (
"vdup.u32 q0, %3 \n" // duplicate scale value.
"vtrn.u8 d0, d1 \n" // d0 rrbb, d1 aagg
"vshr.u16 q0, q0, #1 \n" // scale >>= 1
// 8 pixel loop.
".p2align 2 \n"
"1: \n"
"vld4.8 {d20, d22, d24, d26}, [%0]! \n" // load 8 pixels of ARGB.
"subs %2, %2, #8 \n" // 8 processed per loop.
"vmovl.u8 q10, d20 \n" // b (0 .. 255)
"vmovl.u8 q11, d22 \n"
"vmovl.u8 q12, d24 \n"
"vmovl.u8 q13, d26 \n"
"vqrdmulh.s16 q10, q10, d0[0] \n" // b * scale
"vqrdmulh.s16 q11, q11, d1[0] \n" // g
"vqrdmulh.s16 q12, q12, d0[1] \n" // r
"vqrdmulh.s16 q13, q13, d1[0] \n" // a
"vqmovn.u16 d20, q10 \n"
"vqmovn.u16 d22, q11 \n"
"vqmovn.u16 d24, q12 \n"
"vqmovn.u16 d26, q13 \n"
"vst4.8 {d20, d22, d24, d26}, [%1]! \n" // store 8 pixels of ARGB.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_argb), // %1
"+r"(width) // %2
: "r"(value) // %3
: "cc", "memory", "q0", "q10", "q11", "q12", "q13"
);
}

77
source/row_posix.cc
View File

@ -3921,6 +3921,45 @@ void ARGBQuantizeRow_SSE2(uint8* dst_argb, int scale, int interval_size,
}
#endif // HAS_ARGBQUANTIZEROW_SSE2
#ifdef HAS_ARGBSHADEROW_SSE2
// Shade 4 pixels at a time by specified value.
// Aligned to 16 bytes.
void ARGBShadeRow_SSE2(const uint8* src_argb, uint8* dst_argb, int width,
uint32 value) {
asm volatile (
"movd %3,%%xmm2 \n"
"sub %0,%1 \n"
"punpcklbw %%xmm2,%%xmm2 \n"
"punpcklqdq %%xmm2,%%xmm2 \n"
// 4 pixel loop.
".p2align 2 \n"
"1: \n"
"movdqa (%0),%%xmm0 \n"
"movdqa %%xmm0,%%xmm1 \n"
"punpcklbw %%xmm0,%%xmm0 \n"
"punpckhbw %%xmm1,%%xmm1 \n"
"pmulhuw %%xmm2,%%xmm0 \n"
"pmulhuw %%xmm2,%%xmm1 \n"
"psrlw $0x8,%%xmm0 \n"
"psrlw $0x8,%%xmm1 \n"
"packuswb %%xmm1,%%xmm0 \n"
"sub $0x4,%2 \n"
"movdqa %%xmm0,(%0,%1,1) \n"
"lea 0x10(%0),%0 \n"
"jg 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_argb), // %1
"+r"(width) // %2
: "r"(value) // %3
: "memory", "cc"
#if defined(__SSE2__)
, "xmm0", "xmm1", "xmm2"
#endif
);
}
#endif // HAS_ARGBSHADEROW_SSE2
#ifdef HAS_COMPUTECUMULATIVESUMROW_SSE2
// Creates a table of cumulative sums where each value is a sum of all values
// above and to the left of the value, inclusive of the value.
@ -4091,44 +4130,6 @@ void CumulativeSumToAverageRow_SSE2(const int32* topleft, const int32* botleft,
);
}
#endif // HAS_CUMULATIVESUMTOAVERAGEROW_SSE2
#ifdef HAS_ARGBSHADEROW_SSE2
// Shade 4 pixels at a time by specified value.
// Aligned to 16 bytes.
void ARGBShadeRow_SSE2(const uint8* src_argb, uint8* dst_argb, int width,
uint32 value) {
asm volatile (
"movd %3,%%xmm2 \n"
"sub %0,%1 \n"
"punpcklbw %%xmm2,%%xmm2 \n"
"punpcklqdq %%xmm2,%%xmm2 \n"
// 4 pixel loop.
".p2align 2 \n"
"1: \n"
"movdqa (%0),%%xmm0 \n"
"movdqa %%xmm0,%%xmm1 \n"
"punpcklbw %%xmm0,%%xmm0 \n"
"punpckhbw %%xmm1,%%xmm1 \n"
"pmulhuw %%xmm2,%%xmm0 \n"
"pmulhuw %%xmm2,%%xmm1 \n"
"psrlw $0x8,%%xmm0 \n"
"psrlw $0x8,%%xmm1 \n"
"packuswb %%xmm1,%%xmm0 \n"
"sub $0x4,%2 \n"
"movdqa %%xmm0,(%0,%1,1) \n"
"lea 0x10(%0),%0 \n"
"jg 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_argb), // %1
"+r"(width) // %2
: "r"(value) // %3
: "memory", "cc"
#if defined(__SSE2__)
, "xmm0", "xmm1", "xmm2"
#endif
);
}
#endif // HAS_ARGBSHADEROW_SSE2
#ifdef HAS_ARGBAFFINEROW_SSE2
// TODO(fbarchard): Find 64 bit way to avoid masking.

72
source/row_win.cc
View File

@ -4124,6 +4124,42 @@ void ARGBQuantizeRow_SSE2(uint8* dst_argb, int scale, int interval_size,
}
#endif // HAS_ARGBQUANTIZEROW_SSE2
#ifdef HAS_ARGBSHADEROW_SSE2
// Shade 4 pixels at a time by specified value.
// Aligned to 16 bytes.
__declspec(naked) __declspec(align(16))
void ARGBShadeRow_SSE2(const uint8* src_argb, uint8* dst_argb, int width,
uint32 value) {
__asm {
mov eax, [esp + 4] // src_argb
mov edx, [esp + 8] // dst_argb
mov ecx, [esp + 12] // width
movd xmm2, [esp + 16] // value
sub edx, eax
punpcklbw xmm2, xmm2
punpcklqdq xmm2, xmm2
align 16
convertloop:
movdqa xmm0, [eax] // read 4 pixels
movdqa xmm1, xmm0
punpcklbw xmm0, xmm0 // first 2
punpckhbw xmm1, xmm1 // next 2
pmulhuw xmm0, xmm2 // argb * value
pmulhuw xmm1, xmm2 // argb * value
psrlw xmm0, 8
psrlw xmm1, 8
packuswb xmm0, xmm1
sub ecx, 4
movdqa [eax + edx], xmm0
lea eax, [eax + 16]
jg convertloop
ret
}
}
#endif // HAS_ARGBSHADEROW_SSE2
#ifdef HAS_CUMULATIVESUMTOAVERAGEROW_SSE2
// Consider float CumulativeSum.
// Consider calling CumulativeSum one row at time as needed.
@ -4315,42 +4351,6 @@ void ComputeCumulativeSumRow_SSE2(const uint8* row, int32* cumsum,
}
#endif // HAS_COMPUTECUMULATIVESUMROW_SSE2
#ifdef HAS_ARGBSHADEROW_SSE2
// Shade 4 pixels at a time by specified value.
// Aligned to 16 bytes.
__declspec(naked) __declspec(align(16))
void ARGBShadeRow_SSE2(const uint8* src_argb, uint8* dst_argb, int width,
uint32 value) {
__asm {
mov eax, [esp + 4] // src_argb
mov edx, [esp + 8] // dst_argb
mov ecx, [esp + 12] // width
movd xmm2, [esp + 16] // value
sub edx, eax
punpcklbw xmm2, xmm2
punpcklqdq xmm2, xmm2
align 16
convertloop:
movdqa xmm0, [eax] // read 4 pixels
movdqa xmm1, xmm0
punpcklbw xmm0, xmm0 // first 2
punpckhbw xmm1, xmm1 // next 2
pmulhuw xmm0, xmm2 // argb * value
pmulhuw xmm1, xmm2 // argb * value
psrlw xmm0, 8
psrlw xmm1, 8
packuswb xmm0, xmm1
sub ecx, 4
movdqa [eax + edx], xmm0
lea eax, [eax + 16]
jg convertloop
ret
}
}
#endif // HAS_ARGBSHADEROW_SSE2
#ifdef HAS_ARGBAFFINEROW_SSE2
// Copy ARGB pixels from source image with slope to a row of destination.
__declspec(naked) __declspec(align(16))

11
unit_test/planar_test.cc
View File

@ -539,7 +539,8 @@ TEST_F(libyuvTest, TestShade) {
orig_pixels[3][1] = 0u;
orig_pixels[3][2] = 0u;
orig_pixels[3][3] = 0u;
ARGBShade(&orig_pixels[0][0], 0, &shade_pixels[0][0], 0, 4, 1, 0x80ffffff);
// Do 8 pixels to allow opt version to be used.
ARGBShade(&orig_pixels[0][0], 0, &shade_pixels[0][0], 0, 8, 1, 0x80ffffff);
EXPECT_EQ(10u, shade_pixels[0][0]);
EXPECT_EQ(20u, shade_pixels[0][1]);
EXPECT_EQ(40u, shade_pixels[0][2]);
@ -557,12 +558,18 @@ TEST_F(libyuvTest, TestShade) {
EXPECT_EQ(0u, shade_pixels[3][2]);
EXPECT_EQ(0u, shade_pixels[3][3]);
ARGBShade(&orig_pixels[0][0], 0, &shade_pixels[0][0], 0, 4, 1, 0x80808080);
ARGBShade(&orig_pixels[0][0], 0, &shade_pixels[0][0], 0, 8, 1, 0x80808080);
EXPECT_EQ(5u, shade_pixels[0][0]);
EXPECT_EQ(10u, shade_pixels[0][1]);
EXPECT_EQ(20u, shade_pixels[0][2]);
EXPECT_EQ(40u, shade_pixels[0][3]);
ARGBShade(&orig_pixels[0][0], 0, &shade_pixels[0][0], 0, 8, 1, 0x10204080);
EXPECT_EQ(5u, shade_pixels[0][0]);
EXPECT_EQ(5u, shade_pixels[0][1]);
EXPECT_EQ(5u, shade_pixels[0][2]);
EXPECT_EQ(5u, shade_pixels[0][3]);
for (int i = 0; i < benchmark_pixels_div256_; ++i) {
ARGBShade(&orig_pixels[0][0], 0, &shade_pixels[0][0], 0, 256, 1,
0x80808080);