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Port ARGBToRGB565 from aarch64 neon to 32 bit

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The 64 bit version of ARGBToRGB565 to 32 bit. 64 bit is using sri which shifts and inserts, saving some masking.  The instruction is available for neon 32 bit as well.

R=magjed@chromium.org, harryjin@google.com
BUG=libyuv:571

Review URL: https://codereview.chromium.org/1724393002 .
This commit is contained in:
Frank Barchard 2016-02-29 12:22:25 -08:00
parent ab0dfdd4ff
commit ee99b85126
4 changed files with 16 additions and 27 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: 1578
Version: 1579
License: BSD
License File: LICENSE

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 1578
#define LIBYUV_VERSION 1579
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

35
source/row_neon.cc
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@ -317,16 +317,11 @@ void I422ToRGB24Row_NEON(const uint8* src_y,
}
#define ARGBTORGB565 \
"vshr.u8 d20, d20, #3 \n" /* B */ \
"vshr.u8 d21, d21, #2 \n" /* G */ \
"vshr.u8 d22, d22, #3 \n" /* R */ \
"vmovl.u8 q8, d20 \n" /* B */ \
"vmovl.u8 q9, d21 \n" /* G */ \
"vmovl.u8 q10, d22 \n" /* R */ \
"vshl.u16 q9, q9, #5 \n" /* G */ \
"vshl.u16 q10, q10, #11 \n" /* R */ \
"vorr q0, q8, q9 \n" /* BG */ \
"vorr q0, q0, q10 \n" /* BGR */
"vshll.u8 q0, d22, #8 \n" /* R */ \
"vshll.u8 q8, d21, #8 \n" /* G */ \
"vshll.u8 q9, d20, #8 \n" /* B */ \
"vsri.16 q0, q8, #5 \n" /* RG */ \
"vsri.16 q0, q9, #11 \n" /* RGB */
void I422ToRGB565Row_NEON(const uint8* src_y,
const uint8* src_u,
@ -359,19 +354,13 @@ void I422ToRGB565Row_NEON(const uint8* src_y,
}
#define ARGBTOARGB1555 \
"vshr.u8 q10, q10, #3 \n" /* B */ \
"vshr.u8 d22, d22, #3 \n" /* R */ \
"vshr.u8 d23, d23, #7 \n" /* A */ \
"vmovl.u8 q8, d20 \n" /* B */ \
"vmovl.u8 q9, d21 \n" /* G */ \
"vmovl.u8 q10, d22 \n" /* R */ \
"vmovl.u8 q11, d23 \n" /* A */ \
"vshl.u16 q9, q9, #5 \n" /* G */ \
"vshl.u16 q10, q10, #10 \n" /* R */ \
"vshl.u16 q11, q11, #15 \n" /* A */ \
"vorr q0, q8, q9 \n" /* BG */ \
"vorr q1, q10, q11 \n" /* RA */ \
"vorr q0, q0, q1 \n" /* BGRA */
"vshll.u8 q0, d23, #8 \n" /* A */ \
"vshll.u8 q8, d22, #8 \n" /* R */ \
"vshll.u8 q9, d21, #8 \n" /* G */ \
"vshll.u8 q10, d20, #8 \n" /* B */ \
"vsri.16 q0, q8, #1 \n" /* AR */ \
"vsri.16 q0, q9, #6 \n" /* ARG */ \
"vsri.16 q0, q10, #11 \n" /* ARGB */
void I422ToARGB1555Row_NEON(const uint8* src_y,
const uint8* src_u,

4
source/row_neon64.cc
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@ -323,8 +323,8 @@ void I422ToRGB24Row_NEON(const uint8* src_y,
#define ARGBTORGB565 \
"shll v0.8h, v22.8b, #8 \n" /* R */ \
"shll v20.8h, v20.8b, #8 \n" /* B */ \
"shll v21.8h, v21.8b, #8 \n" /* G */ \
"shll v20.8h, v20.8b, #8 \n" /* B */ \
"sri v0.8h, v21.8h, #5 \n" /* RG */ \
"sri v0.8h, v20.8h, #11 \n" /* RGB */
@ -363,8 +363,8 @@ void I422ToRGB565Row_NEON(const uint8* src_y,
#define ARGBTOARGB1555 \
"shll v0.8h, v23.8b, #8 \n" /* A */ \
"shll v22.8h, v22.8b, #8 \n" /* R */ \
"shll v20.8h, v20.8b, #8 \n" /* B */ \
"shll v21.8h, v21.8b, #8 \n" /* G */ \
"shll v20.8h, v20.8b, #8 \n" /* B */ \
"sri v0.8h, v22.8h, #1 \n" /* AR */ \
"sri v0.8h, v21.8h, #6 \n" /* ARG */ \
"sri v0.8h, v20.8h, #11 \n" /* ARGB */