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port ARGB to 565 dithering AVX2 code to GCC.

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Previously the assembly code was only available to Windows.
This CL ports the AVX2 code to GCC syntax.

TBR=harryjin@google.com
BUG=libyuv:492

Review URL: https://codereview.chromium.org/1391273003 .
This commit is contained in:
Frank Barchard 2015-10-07 19:13:59 -07:00
parent cc89e3a77b
commit 8f0cadede4
4 changed files with 79 additions and 33 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: 1503
Version: 1504
License: BSD
License File: LICENSE

60
include/libyuv/row.h
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@ -182,36 +182,6 @@ extern "C" {
#define HAS_SOBELYROW_SSE2
#endif
// The following are also available on x64 Visual C.
#if !defined(LIBYUV_DISABLE_X86) && defined (_M_X64) && \
(!defined(__clang__) || defined(__SSSE3__))
#define HAS_I422ALPHATOABGRROW_SSSE3
#define HAS_I422ALPHATOARGBROW_SSSE3
#define HAS_I422TOABGRROW_SSSE3
#define HAS_I422TOARGBROW_SSSE3
#endif
// The following are available for AVX2 Visual C and clangcl 32 bit:
// TODO(fbarchard): Port to gcc.
#if !defined(LIBYUV_DISABLE_X86) && defined(_M_IX86) && \
(defined(VISUALC_HAS_AVX2) || defined(CLANG_HAS_AVX2))
#define HAS_ARGB1555TOARGBROW_AVX2
#define HAS_ARGB4444TOARGBROW_AVX2
#define HAS_ARGBTOARGB1555ROW_AVX2
#define HAS_ARGBTOARGB4444ROW_AVX2
#define HAS_ARGBTORGB565DITHERROW_AVX2
#define HAS_ARGBTORGB565ROW_AVX2
#define HAS_I411TOARGBROW_AVX2
#define HAS_I422TOARGB1555ROW_AVX2
#define HAS_I422TOARGB4444ROW_AVX2
#define HAS_I422TORGB565ROW_AVX2
#define HAS_I444TOABGRROW_AVX2
#define HAS_I444TOARGBROW_AVX2
#define HAS_J400TOARGBROW_AVX2
#define HAS_NV12TORGB565ROW_AVX2
#define HAS_RGB565TOARGBROW_AVX2
#endif
// The following are available on all x86 platforms, but
// require VS2012, clang 3.4 or gcc 4.7.
// The code supports NaCL but requires a new compiler and validator.
@ -222,6 +192,7 @@ extern "C" {
#define HAS_ARGBMIRRORROW_AVX2
#define HAS_ARGBPOLYNOMIALROW_AVX2
#define HAS_ARGBSHUFFLEROW_AVX2
#define HAS_ARGBTORGB565DITHERROW_AVX2
#define HAS_ARGBTOUVROW_AVX2
#define HAS_ARGBTOYJROW_AVX2
#define HAS_ARGBTOYROW_AVX2
@ -262,6 +233,35 @@ extern "C" {
#define HAS_ARGBUNATTENUATEROW_AVX2
#endif
// The following are available for AVX2 Visual C and clangcl 32 bit:
// TODO(fbarchard): Port to gcc.
#if !defined(LIBYUV_DISABLE_X86) && defined(_M_IX86) && \
(defined(VISUALC_HAS_AVX2) || defined(CLANG_HAS_AVX2))
#define HAS_ARGB1555TOARGBROW_AVX2
#define HAS_ARGB4444TOARGBROW_AVX2
#define HAS_ARGBTOARGB1555ROW_AVX2
#define HAS_ARGBTOARGB4444ROW_AVX2
#define HAS_ARGBTORGB565ROW_AVX2
#define HAS_I411TOARGBROW_AVX2
#define HAS_I422TOARGB1555ROW_AVX2
#define HAS_I422TOARGB4444ROW_AVX2
#define HAS_I422TORGB565ROW_AVX2
#define HAS_I444TOABGRROW_AVX2
#define HAS_I444TOARGBROW_AVX2
#define HAS_J400TOARGBROW_AVX2
#define HAS_NV12TORGB565ROW_AVX2
#define HAS_RGB565TOARGBROW_AVX2
#endif
// The following are also available on x64 Visual C.
#if !defined(LIBYUV_DISABLE_X86) && defined (_M_X64) && \
(!defined(__clang__) || defined(__SSSE3__))
#define HAS_I422ALPHATOABGRROW_SSSE3
#define HAS_I422ALPHATOARGBROW_SSSE3
#define HAS_I422TOABGRROW_SSSE3
#define HAS_I422TOARGBROW_SSSE3
#endif
// The following are available on Neon platforms:
#if !defined(LIBYUV_DISABLE_NEON) && \
(defined(__aarch64__) || defined(__ARM_NEON__) || defined(LIBYUV_NEON))

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 1503
#define LIBYUV_VERSION 1504
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

48
source/row_gcc.cc
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@ -566,12 +566,58 @@ void ARGBToRGB565DitherRow_SSE2(const uint8* src, uint8* dst,
: "+r"(src), // %0
"+r"(dst), // %1
"+r"(pix) // %2
: "m"(dither4) // %3
: "rm"(dither4) // %3
: "memory", "cc",
"xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
);
}
#ifdef HAS_ARGBTORGB565DITHERROW_AVX2
void ARGBToRGB565DitherRow_AVX2(const uint8* src, uint8* dst,
const uint32 dither4, int pix) {
asm volatile (
"vbroadcastss %3,%%xmm6 \n"
"vpunpcklbw %%xmm6,%%xmm6,%%xmm6 \n"
"vpermq $0xd8,%%ymm6,%%ymm6 \n"
"vpunpcklwd %%ymm6,%%ymm6,%%ymm6 \n"
"vpcmpeqb %%ymm3,%%ymm3,%%ymm3 \n"
"vpsrld $0x1b,%%ymm3,%%ymm3 \n"
"vpcmpeqb %%ymm4,%%ymm4,%%ymm4 \n"
"vpsrld $0x1a,%%ymm4,%%ymm4 \n"
"vpslld $0x5,%%ymm4,%%ymm4 \n"
"vpslld $0xb,%%ymm3,%%ymm5 \n"
LABELALIGN
"1: \n"
"vmovdqu (%0),%%ymm0 \n"
"vpaddusb %%ymm6,%%ymm0,%%ymm0 \n"
"vpsrld $0x5,%%ymm0,%%ymm2 \n"
"vpsrld $0x3,%%ymm0,%%ymm1 \n"
"vpsrld $0x8,%%ymm0,%%ymm0 \n"
"vpand %%ymm4,%%ymm2,%%ymm2 \n"
"vpand %%ymm3,%%ymm1,%%ymm1 \n"
"vpand %%ymm5,%%ymm0,%%ymm0 \n"
"vpor %%ymm2,%%ymm1,%%ymm1 \n"
"vpor %%ymm1,%%ymm0,%%ymm0 \n"
"vpackusdw %%ymm0,%%ymm0,%%ymm0 \n"
"vpermq $0xd8,%%ymm0,%%ymm0 \n"
"lea 0x20(%0),%0 \n"
"vmovdqu %%xmm0,(%1) \n"
"lea 0x10(%1),%1 \n"
"sub $0x8,%2 \n"
"jg 1b \n"
"vzeroupper \n"
: "+r"(src), // %0
"+r"(dst), // %1
"+r"(pix) // %2
: "rm"(dither4) // %3
: "memory", "cc",
"xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
);
}
#endif // HAS_ARGBTORGB565DITHERROW_AVX2
void ARGBToARGB1555Row_SSE2(const uint8* src, uint8* dst, int pix) {
asm volatile (
"pcmpeqb %%xmm4,%%xmm4 \n"