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MergeUV10Row_AVX2 for converting H010 to P010

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H010 is 10 bit planar format with 10 bits in lower bits.
P010 is 10 bit biplanar format with 10 bits in upper bits.
This function weaves the U and V channels and shifts the bits
into the upper bits.

Bug: libyuv:751
Test: LibYUVPlanarTest.MergeUV10Row_Opt
Change-Id: I4a0bac0ef1ff95aa1b8d68261ec8e8e86f2d1fbf
Reviewed-on: https://chromium-review.googlesource.com/752692
Reviewed-by: Cheng Wang <wangcheng@google.com>
Reviewed-by: Frank Barchard <fbarchard@google.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>
This commit is contained in:
Frank Barchard 2017-11-02 19:52:44 -07:00 committed by Frank Barchard
parent 75ec56b55a
commit a0c32b9e49
4 changed files with 120 additions and 1 deletions
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19
include/libyuv/row.h
View File

@ -271,7 +271,7 @@ extern "C" {
#define HAS_I422TOARGBROW_SSSE3
#endif
// The following are available forr gcc/clang x86 platforms:
// The following are available for gcc/clang x86 platforms:
// TODO(fbarchard): Port to Visual C
#if !defined(LIBYUV_DISABLE_X86) && \
(defined(__x86_64__) || (defined(__i386__) && !defined(_MSC_VER)))
@ -279,6 +279,14 @@ extern "C" {
#define HAS_SPLITRGBROW_SSSE3
#endif
// The following are available for AVX2 gcc/clang x86 platforms:
// TODO(fbarchard): Port to Visual C
#if !defined(LIBYUV_DISABLE_X86) && \
(defined(__x86_64__) || (defined(__i386__) && !defined(_MSC_VER))) && \
(defined(CLANG_HAS_AVX2) || defined(GCC_HAS_AVX2))
#define HAS_MERGEUV10ROW_AVX2
#endif
// The following are available on Neon platforms:
#if !defined(LIBYUV_DISABLE_NEON) && \
(defined(__aarch64__) || defined(__ARM_NEON__) || defined(LIBYUV_NEON))
@ -1523,6 +1531,15 @@ void MergeRGBRow_Any_NEON(const uint8* src_r,
uint8* dst_rgb,
int width);
void MergeUV10Row_C(const uint16* src_u,
const uint16* src_v,
uint16* dst_uv,
int width);
void MergeUV10Row_AVX2(const uint16* src_u,
const uint16* src_v,
uint16* dst_uv,
int width);
void CopyRow_SSE2(const uint8* src, uint8* dst, int count);
void CopyRow_AVX(const uint8* src, uint8* dst, int count);
void CopyRow_ERMS(const uint8* src, uint8* dst, int count);

18
source/row_common.cc
View File

@ -1798,6 +1798,24 @@ void MergeRGBRow_C(const uint8* src_r,
}
}
void MergeUV10Row_C(const uint16* src_u,
const uint16* src_v,
uint16* dst_uv,
int width) {
int x;
for (x = 0; x < width - 1; x += 2) {
dst_uv[0] = src_u[x] << 6;
dst_uv[1] = src_v[x] << 6;
dst_uv[2] = src_u[x + 1] << 6;
dst_uv[3] = src_v[x + 1] << 6;
dst_uv += 4;
}
if (width & 1) {
dst_uv[0] = src_u[width - 1] << 6;
dst_uv[1] = src_v[width - 1] << 6;
}
}
void CopyRow_C(const uint8* src, uint8* dst, int count) {
memcpy(dst, src, count);
}

42
source/row_gcc.cc
View File

@ -2753,6 +2753,48 @@ void MergeUVRow_SSE2(const uint8* src_u,
}
#endif // HAS_MERGEUVROW_SSE2
#ifdef HAS_MERGEUV10ROW_AVX2
void MergeUV10Row_AVX2(const uint16* src_u,
const uint16* src_v,
uint16* dst_uv,
int width) {
asm volatile (
"sub %0,%1 \n"
LABELALIGN
"1: \n"
"vmovdqu (%0),%%ymm0 \n"
"vmovdqu (%0,%1,1),%%ymm1 \n"
"add $0x20,%0 \n"
"vpsllw $0x6,%%ymm0,%%ymm0 \n"
"vpsllw $0x6,%%ymm1,%%ymm1 \n"
// "vpermq $0xd8,%%ymm0,%%ymm0 \n"
// "vpermq $0xd8,%%ymm1,%%ymm1 \n"
"vpunpcklwd %%ymm1,%%ymm0,%%ymm2 \n"
"vpunpckhwd %%ymm1,%%ymm0,%%ymm0 \n"
// "vmovdqu %%ymm2, (%2) \n"
// "vmovdqu %%ymm0, 0x20(%2) \n"
"vextractf128 $0x0,%%ymm2,(%2) \n"
"vextractf128 $0x0,%%ymm0,0x10(%2) \n"
"vextractf128 $0x1,%%ymm2,0x20(%2) \n"
"vextractf128 $0x1,%%ymm0,0x30(%2) \n"
"add $0x40,%2 \n"
"sub $0x10,%3 \n"
"jg 1b \n"
"vzeroupper \n"
: "+r"(src_u), // %0
"+r"(src_v), // %1
"+r"(dst_uv), // %2
"+r"(width) // %3
:
: "memory", "cc", "xmm0", "xmm1", "xmm2"
);
}
#endif // HAS_MERGEUVROW_AVX2
#ifdef HAS_SPLITRGBROW_SSSE3
// Shuffle table for converting RGB to Planar.

42
unit_test/planar_test.cc
View File

@ -2617,6 +2617,48 @@ TEST_F(LibYUVPlanarTest, SplitRGBPlane_Opt) {
free_aligned_buffer_page_end(dst_pixels_c);
}
// TODO(fbarchard): improve test for platforms and cpu detect
#ifdef HAS_MERGEUV10ROW_AVX2
TEST_F(LibYUVPlanarTest, MergeUV10Row_Opt) {
const int kPixels = benchmark_width_ * benchmark_height_;
align_buffer_page_end(src_pixels_u, kPixels * 2);
align_buffer_page_end(src_pixels_v, kPixels * 2);
align_buffer_page_end(dst_pixels_uv_opt, kPixels * 2 * 2);
align_buffer_page_end(dst_pixels_uv_c, kPixels * 2 * 2);
MemRandomize(src_pixels_u, kPixels * 2);
MemRandomize(src_pixels_v, kPixels * 2);
memset(dst_pixels_uv_opt, 0, kPixels * 2 * 2);
memset(dst_pixels_uv_c, 1, kPixels * 2 * 2);
MergeUV10Row_C(reinterpret_cast<const uint16*>(src_pixels_u),
reinterpret_cast<const uint16*>(src_pixels_v),
reinterpret_cast<uint16*>(dst_pixels_uv_c), kPixels);
int has_avx2 = TestCpuFlag(kCpuHasAVX2);
for (int i = 0; i < benchmark_iterations_; ++i) {
if (has_avx2) {
MergeUV10Row_AVX2(reinterpret_cast<const uint16*>(src_pixels_u),
reinterpret_cast<const uint16*>(src_pixels_v),
reinterpret_cast<uint16*>(dst_pixels_uv_opt), kPixels);
} else {
MergeUV10Row_C(reinterpret_cast<const uint16*>(src_pixels_u),
reinterpret_cast<const uint16*>(src_pixels_v),
reinterpret_cast<uint16*>(dst_pixels_uv_opt), kPixels);
}
}
for (int i = 0; i < kPixels * 2 * 2; ++i) {
EXPECT_EQ(dst_pixels_uv_opt[i], dst_pixels_uv_c[i]);
}
free_aligned_buffer_page_end(src_pixels_u);
free_aligned_buffer_page_end(src_pixels_v);
free_aligned_buffer_page_end(dst_pixels_uv_opt);
free_aligned_buffer_page_end(dst_pixels_uv_c);
}
#endif
float TestScaleMaxSamples(int benchmark_width,
int benchmark_height,
int benchmark_iterations,