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neon64 use width int directly.

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width %w size modifier the int width can be passed directly to arm assembly.
For functions that take input constants, the outputs are declared as early
write using &, meaning the outputs use used before all inputs are consumed.

R=harryjin@google.com
BUG=libyuv:598

Review URL: https://codereview.chromium.org/2043073003 .
This commit is contained in:
Frank Barchard 2016-06-08 10:26:53 -07:00
parent 17e8a4d3df
commit 026be3cd85
3 changed files with 20 additions and 28 deletions
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2
README.chromium
View File

@ -1,6 +1,6 @@
Name: libyuv
URL: http://code.google.com/p/libyuv/
Version: 1594
Version: 1595
License: BSD
License File: LICENSE

2
include/libyuv/version.h
View File

@ -11,6 +11,6 @@
#ifndef INCLUDE_LIBYUV_VERSION_H_ // NOLINT
#define INCLUDE_LIBYUV_VERSION_H_
#define LIBYUV_VERSION 1594
#define LIBYUV_VERSION 1595
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

44
source/row_neon64.cc
View File

@ -563,7 +563,6 @@ void YUY2ToARGBRow_NEON(const uint8* src_yuy2,
uint8* dst_argb,
const struct YuvConstants* yuvconstants,
int width) {
int64 width64 = (int64)(width);
asm volatile (
YUVTORGB_SETUP
"movi v23.8b, #255 \n"
@ -576,7 +575,7 @@ void YUY2ToARGBRow_NEON(const uint8* src_yuy2,
"b.gt 1b \n"
: "+r"(src_yuy2), // %0
"+r"(dst_argb), // %1
"+r"(width64) // %2
"+r"(width) // %2
: [kUVToRB]"r"(&yuvconstants->kUVToRB),
[kUVToG]"r"(&yuvconstants->kUVToG),
[kUVBiasBGR]"r"(&yuvconstants->kUVBiasBGR),
@ -590,7 +589,6 @@ void UYVYToARGBRow_NEON(const uint8* src_uyvy,
uint8* dst_argb,
const struct YuvConstants* yuvconstants,
int width) {
int64 width64 = (int64)(width);
asm volatile (
YUVTORGB_SETUP
"movi v23.8b, #255 \n"
@ -603,7 +601,7 @@ void UYVYToARGBRow_NEON(const uint8* src_uyvy,
"b.gt 1b \n"
: "+r"(src_uyvy), // %0
"+r"(dst_argb), // %1
"+r"(width64) // %2
"+r"(width) // %2
: [kUVToRB]"r"(&yuvconstants->kUVToRB),
[kUVToG]"r"(&yuvconstants->kUVToG),
[kUVBiasBGR]"r"(&yuvconstants->kUVBiasBGR),
@ -681,10 +679,10 @@ void SetRow_NEON(uint8* dst, uint8 v8, int count) {
asm volatile (
"dup v0.16b, %w2 \n" // duplicate 16 bytes
"1: \n"
"subs %w1, %w1, #16 \n" // 16 bytes per loop
"subs %w1, %w1, #16 \n" // 16 bytes per loop
MEMACCESS(0)
"st1 {v0.16b}, [%0], #16 \n" // store
"b.gt 1b \n"
"b.gt 1b \n"
: "+r"(dst), // %0
"+r"(count) // %1
: "r"(v8) // %2
@ -696,10 +694,10 @@ void ARGBSetRow_NEON(uint8* dst, uint32 v32, int count) {
asm volatile (
"dup v0.4s, %w2 \n" // duplicate 4 ints
"1: \n"
"subs %w1, %w1, #4 \n" // 4 ints per loop
"subs %w1, %w1, #4 \n" // 4 ints per loop
MEMACCESS(0)
"st1 {v0.16b}, [%0], #16 \n" // store
"b.gt 1b \n"
"b.gt 1b \n"
: "+r"(dst), // %0
"+r"(count) // %1
: "r"(v32) // %2
@ -708,16 +706,14 @@ void ARGBSetRow_NEON(uint8* dst, uint32 v32, int count) {
}
void MirrorRow_NEON(const uint8* src, uint8* dst, int width) {
int64 width64 = (int64) width;
asm volatile (
// Start at end of source row.
"add %0, %0, %2 \n"
"add %0, %0, %w2, sxtw \n"
"sub %0, %0, #16 \n"
"1: \n"
MEMACCESS(0)
"ld1 {v0.16b}, [%0], %3 \n" // src -= 16
"subs %2, %2, #16 \n" // 16 pixels per loop.
"subs %w2, %w2, #16 \n" // 16 pixels per loop.
"rev64 v0.16b, v0.16b \n"
MEMACCESS(1)
"st1 {v0.D}[1], [%1], #8 \n" // dst += 16
@ -726,7 +722,7 @@ void MirrorRow_NEON(const uint8* src, uint8* dst, int width) {
"b.gt 1b \n"
: "+r"(src), // %0
"+r"(dst), // %1
"+r"(width64) // %2
"+r"(width) // %2
: "r"((ptrdiff_t)-16) // %3
: "cc", "memory", "v0"
);
@ -734,16 +730,14 @@ void MirrorRow_NEON(const uint8* src, uint8* dst, int width) {
void MirrorUVRow_NEON(const uint8* src_uv, uint8* dst_u, uint8* dst_v,
int width) {
int64 width64 = (int64) width;
asm volatile (
// Start at end of source row.
"add %0, %0, %3, lsl #1 \n"
"add %0, %0, %w3, sxtw #1 \n"
"sub %0, %0, #16 \n"
"1: \n"
MEMACCESS(0)
"ld2 {v0.8b, v1.8b}, [%0], %4 \n" // src -= 16
"subs %3, %3, #8 \n" // 8 pixels per loop.
"subs %w3, %w3, #8 \n" // 8 pixels per loop.
"rev64 v0.8b, v0.8b \n"
"rev64 v1.8b, v1.8b \n"
MEMACCESS(1)
@ -754,23 +748,21 @@ void MirrorUVRow_NEON(const uint8* src_uv, uint8* dst_u, uint8* dst_v,
: "+r"(src_uv), // %0
"+r"(dst_u), // %1
"+r"(dst_v), // %2
"+r"(width64) // %3
"+r"(width) // %3
: "r"((ptrdiff_t)-16) // %4
: "cc", "memory", "v0", "v1"
);
}
void ARGBMirrorRow_NEON(const uint8* src, uint8* dst, int width) {
int64 width64 = (int64) width;
asm volatile (
// Start at end of source row.
"add %0, %0, %2, lsl #2 \n"
// Start at end of source row.
"add %0, %0, %w2, sxtw #2 \n"
"sub %0, %0, #16 \n"
"1: \n"
MEMACCESS(0)
"ld1 {v0.16b}, [%0], %3 \n" // src -= 16
"subs %2, %2, #4 \n" // 4 pixels per loop.
"subs %w2, %w2, #4 \n" // 4 pixels per loop.
"rev64 v0.4s, v0.4s \n"
MEMACCESS(1)
"st1 {v0.D}[1], [%1], #8 \n" // dst += 16
@ -779,7 +771,7 @@ void ARGBMirrorRow_NEON(const uint8* src, uint8* dst, int width) {
"b.gt 1b \n"
: "+r"(src), // %0
"+r"(dst), // %1
"+r"(width64) // %2
"+r"(width) // %2
: "r"((ptrdiff_t)-16) // %3
: "cc", "memory", "v0"
);
@ -797,7 +789,7 @@ void RGB24ToARGBRow_NEON(const uint8* src_rgb24, uint8* dst_argb, int width) {
"b.gt 1b \n"
: "+r"(src_rgb24), // %0
"+r"(dst_argb), // %1
"+r"(width) // %2
"+r"(width) // %2
:
: "cc", "memory", "v1", "v2", "v3", "v4" // Clobber List
);
@ -817,7 +809,7 @@ void RAWToARGBRow_NEON(const uint8* src_raw, uint8* dst_argb, int width) {
"b.gt 1b \n"
: "+r"(src_raw), // %0
"+r"(dst_argb), // %1
"+r"(width) // %2
"+r"(width) // %2
:
: "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5" // Clobber List
);