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ARGBToRGB565 AVX2 with dithering

Browse Source 
BUG=407
TESTED=ARGBToRGB565Dither unittest
R=brucedawson@google.com, harryjin@google.com

Review URL: https://webrtc-codereview.appspot.com/44519004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1309 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2015-03-04 22:31:43 +00:00
parent 9245317e16
commit 0fe4abbc5c
7 changed files with 108 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
README.chromium
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@ -1,6 +1,6 @@
Name: libyuv
URL: http://code.google.com/p/libyuv/
Version: 1307
Version: 1309
License: BSD
License File: LICENSE

16
include/libyuv/row.h
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@ -198,7 +198,10 @@ extern "C" {
#define HAS_I422TORGB565ROW_AVX2
#define HAS_I422TOARGB1555ROW_AVX2
#define HAS_I422TOARGB4444ROW_AVX2
// TODO(fbarchard): Port to Neon
#define HAS_ARGBTORGB565DITHERROW_SSE2
#define HAS_ARGBTORGB565DITHERROW_AVX2
#endif
// The following are available on all x86 platforms, but
@ -906,8 +909,12 @@ void ARGBToRGB565Row_SSE2(const uint8* src_argb, uint8* dst_rgb, int pix);
void ARGBToARGB1555Row_SSE2(const uint8* src_argb, uint8* dst_rgb, int pix);
void ARGBToARGB4444Row_SSE2(const uint8* src_argb, uint8* dst_rgb, int pix);
void ARGBToRGB565DitherRow_C(const uint8* src_argb, uint8* dst_rgb,
const uint8* dither8, int pix);
void ARGBToRGB565DitherRow_SSE2(const uint8* src_argb, uint8* dst_rgb,
const uint8* dither8x8, int pix);
const uint8* dither8, int pix);
void ARGBToRGB565DitherRow_AVX2(const uint8* src_argb, uint8* dst_rgb,
const uint8* dither8, int pix);
void ARGBToRGB565Row_AVX2(const uint8* src_argb, uint8* dst_rgb, int pix);
void ARGBToARGB1555Row_AVX2(const uint8* src_argb, uint8* dst_rgb, int pix);
@ -926,9 +933,6 @@ void ARGBToRGB565Row_C(const uint8* src_argb, uint8* dst_rgb, int pix);
void ARGBToARGB1555Row_C(const uint8* src_argb, uint8* dst_rgb, int pix);
void ARGBToARGB4444Row_C(const uint8* src_argb, uint8* dst_rgb, int pix);
void ARGBToRGB565DitherRow_C(const uint8* src_argb, uint8* dst_rgb,
const uint8* dither8x8, int pix);
void I400ToARGBRow_SSE2(const uint8* src_y, uint8* dst_argb, int pix);
void I400ToARGBRow_NEON(const uint8* src_y, uint8* dst_argb, int pix);
void I400ToARGBRow_C(const uint8* src_y, uint8* dst_argb, int pix);
@ -1380,7 +1384,9 @@ void ARGBToARGB1555Row_Any_SSE2(const uint8* src_argb, uint8* dst_rgb, int pix);
void ARGBToARGB4444Row_Any_SSE2(const uint8* src_argb, uint8* dst_rgb, int pix);
void ARGBToRGB565DitherRow_Any_SSE2(const uint8* src_argb, uint8* dst_rgb,
const uint8* dither8x8, int pix);
const uint8* dither8, int pix);
void ARGBToRGB565DitherRow_Any_AVX2(const uint8* src_argb, uint8* dst_rgb,
const uint8* dither8, int pix);
void ARGBToRGB565Row_Any_AVX2(const uint8* src_argb, uint8* dst_rgb, int pix);
void ARGBToARGB1555Row_Any_AVX2(const uint8* src_argb, uint8* dst_rgb, int pix);

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 1307
#define LIBYUV_VERSION 1309
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

9
source/convert_from_argb.cc
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@ -842,6 +842,14 @@ int ARGBToRGB565Dither(const uint8* src_argb, int src_stride_argb,
ARGBToRGB565DitherRow = ARGBToRGB565DitherRow_SSE2;
}
}
#endif
#if defined(HAS_ARGBTORGB565DITHERROW_AVX2)
if (TestCpuFlag(kCpuHasAVX2)) {
ARGBToRGB565DitherRow = ARGBToRGB565DitherRow_Any_AVX2;
if (IS_ALIGNED(width, 8)) {
ARGBToRGB565DitherRow = ARGBToRGB565DitherRow_AVX2;
}
}
#endif
for (y = 0; y < height; ++y) {
ARGBToRGB565DitherRow(src_argb, dst_rgb565,
@ -853,6 +861,7 @@ int ARGBToRGB565Dither(const uint8* src_argb, int src_stride_argb,
}
// Convert ARGB To RGB565.
// TODO(fbarchard): Consider using dither function low level with zeros.
LIBYUV_API
int ARGBToRGB565(const uint8* src_argb, int src_stride_argb,
uint8* dst_rgb565, int dst_stride_rgb565,

4
source/row_any.cc
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@ -239,6 +239,10 @@ RGBANY(UYVYToARGBRow_Any_NEON, UYVYToARGBRow_NEON, UYVYToARGBRow_C, 2, 4, 7)
RGBDANY(ARGBToRGB565DitherRow_Any_SSE2, ARGBToRGB565DitherRow_SSE2,
ARGBToRGB565DitherRow_C, 4, 2, 7)
#endif
#if defined(HAS_ARGBTORGB565DITHERROW_AVX2)
RGBDANY(ARGBToRGB565DitherRow_Any_AVX2, ARGBToRGB565DitherRow_AVX2,
ARGBToRGB565DitherRow_C, 4, 2, 7)
#endif
#undef RGBDANY
// ARGB to Bayer does multiple of 4 pixels, SSSE3 aligned src, unaligned dst.

49
source/row_win.cc
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@ -687,6 +687,54 @@ void ARGBToRGB565DitherRow_SSE2(const uint8* src_argb, uint8* dst_rgb,
}
}
#ifdef HAS_ARGBTORGB565DITHERROW_AVX2
// TODO(fbarchard): Consider vpackusdw and remove vpsrad 16
__declspec(naked) __declspec(align(16))
void ARGBToRGB565DitherRow_AVX2(const uint8* src_argb, uint8* dst_rgb,
const uint8* dither8, int pix) {
__asm {
mov eax, [esp + 12] // dither8
vmovq xmm6, qword ptr [eax] // fetch 8 dither values
vpunpcklbw xmm6, xmm6, xmm6
vpermq ymm6, ymm6, 0xd8
vpunpcklwd ymm6, ymm6, ymm6
mov eax, [esp + 4] // src_argb
mov edx, [esp + 8] // dst_rgb
mov ecx, [esp + 16] // pix
vpcmpeqb ymm3, ymm3, ymm3 // generate mask 0x0000001f
vpsrld ymm3, ymm3, 27
vpcmpeqb ymm4, ymm4, ymm4 // generate mask 0x000007e0
vpsrld ymm4, ymm4, 26
vpslld ymm4, ymm4, 5
vpcmpeqb ymm5, ymm5, ymm5 // generate mask 0xfffff800
vpslld ymm5, ymm5, 11
convertloop:
vmovdqu ymm0, [eax] // fetch 8 pixels of argb
vpaddusb ymm0, ymm0, ymm6
vpsrld ymm2, ymm0, 5 // G
vpsrld ymm1, ymm0, 3 // B
vpslld ymm0, ymm0, 8 // R
vpand ymm2, ymm2, ymm4 // G
vpand ymm1, ymm1, ymm3 // B
vpsrad ymm0, ymm0, 16 // R
vpand ymm0, ymm0, ymm5 // R
vpor ymm1, ymm1, ymm2 // BG
vpor ymm0, ymm0, ymm1 // BGR
vpackssdw ymm0, ymm0, ymm0
vpermq ymm0, ymm0, 0xd8
lea eax, [eax + 32]
vmovdqu [edx], xmm0 // store 8 pixels of RGB565
lea edx, [edx + 16]
sub ecx, 8
jg convertloop
vzeroupper
ret
}
}
#endif // HAS_ARGBTORGB565DITHERROW_AVX2
// TODO(fbarchard): Improve sign extension/packing.
__declspec(naked) __declspec(align(16))
void ARGBToARGB1555Row_SSE2(const uint8* src_argb, uint8* dst_rgb, int pix) {
@ -759,6 +807,7 @@ void ARGBToARGB4444Row_SSE2(const uint8* src_argb, uint8* dst_rgb, int pix) {
}
#ifdef HAS_ARGBTORGB565ROW_AVX2
// TODO(fbarchard): Consider vpackusdw and remove vpsrad 16
__declspec(naked) __declspec(align(16))
void ARGBToRGB565Row_AVX2(const uint8* src_argb, uint8* dst_rgb, int pix) {
__asm {

33
unit_test/convert_test.cc
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@ -1381,4 +1381,37 @@ TEST_F(libyuvTest, TestYToARGB) {
}
}
static const uint8 kNoDither8x8[64] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
};
TEST_F(libyuvTest, TestDither) {
align_buffer_64(src_argb, benchmark_width_ * benchmark_height_ * 4);
align_buffer_64(dst_rgb565, benchmark_width_ * benchmark_height_ * 2);
align_buffer_64(dst_rgb565dither, benchmark_width_ * benchmark_height_ * 2);
MemRandomize(src_argb, benchmark_width_ * benchmark_height_ * 4);
MemRandomize(dst_rgb565, benchmark_width_ * benchmark_height_ * 2);
MemRandomize(dst_rgb565dither, benchmark_width_ * benchmark_height_ * 2);
ARGBToRGB565(src_argb, benchmark_width_ * 4,
dst_rgb565, benchmark_width_ * 2,
benchmark_width_, benchmark_height_);
ARGBToRGB565Dither(src_argb, benchmark_width_ * 4,
dst_rgb565dither, benchmark_width_ * 2,
kNoDither8x8, benchmark_width_, benchmark_height_);
for (int i = 0; i < benchmark_width_ * benchmark_height_ * 2; ++i) {
EXPECT_EQ(dst_rgb565[i], dst_rgb565dither[i]);
}
free_aligned_buffer_64(src_argb);
free_aligned_buffer_64(dst_rgb565);
free_aligned_buffer_64(dst_rgb565dither);
}
} // namespace libyuv