gecko-dev/media/libyuv/source/row_neon.cc
Randell Jesup 903040a93a Bug 813645 - Move libyuv to media/libyuv r=glandium
--HG--
rename : media/webrtc/trunk/third_party/libyuv/AUTHORS => media/libyuv/AUTHORS
rename : media/webrtc/trunk/third_party/libyuv/Android.mk => media/libyuv/Android.mk
rename : media/webrtc/trunk/third_party/libyuv/DEPS => media/libyuv/DEPS
rename : media/webrtc/trunk/third_party/libyuv/LICENSE => media/libyuv/LICENSE
rename : media/webrtc/trunk/third_party/libyuv/LICENSE_THIRD_PARTY => media/libyuv/LICENSE_THIRD_PARTY
rename : media/webrtc/trunk/third_party/libyuv/OWNERS => media/libyuv/OWNERS
rename : media/webrtc/trunk/third_party/libyuv/PATENTS => media/libyuv/PATENTS
rename : media/webrtc/trunk/third_party/libyuv/README.chromium => media/libyuv/README.chromium
rename : media/webrtc/trunk/third_party/libyuv/all.gyp => media/libyuv/all.gyp
rename : media/webrtc/trunk/third_party/libyuv/codereview.settings => media/libyuv/codereview.settings
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rename : media/webrtc/trunk/third_party/libyuv/include/libyuv/basic_types.h => media/libyuv/include/libyuv/basic_types.h
rename : media/webrtc/trunk/third_party/libyuv/include/libyuv/compare.h => media/libyuv/include/libyuv/compare.h
rename : media/webrtc/trunk/third_party/libyuv/include/libyuv/convert.h => media/libyuv/include/libyuv/convert.h
rename : media/webrtc/trunk/third_party/libyuv/include/libyuv/convert_argb.h => media/libyuv/include/libyuv/convert_argb.h
rename : media/webrtc/trunk/third_party/libyuv/include/libyuv/convert_from.h => media/libyuv/include/libyuv/convert_from.h
rename : media/webrtc/trunk/third_party/libyuv/include/libyuv/convert_from_argb.h => media/libyuv/include/libyuv/convert_from_argb.h
rename : media/webrtc/trunk/third_party/libyuv/include/libyuv/cpu_id.h => media/libyuv/include/libyuv/cpu_id.h
rename : media/webrtc/trunk/third_party/libyuv/include/libyuv/format_conversion.h => media/libyuv/include/libyuv/format_conversion.h
rename : media/webrtc/trunk/third_party/libyuv/include/libyuv/mjpeg_decoder.h => media/libyuv/include/libyuv/mjpeg_decoder.h
rename : media/webrtc/trunk/third_party/libyuv/include/libyuv/planar_functions.h => media/libyuv/include/libyuv/planar_functions.h
rename : media/webrtc/trunk/third_party/libyuv/include/libyuv/rotate.h => media/libyuv/include/libyuv/rotate.h
rename : media/webrtc/trunk/third_party/libyuv/include/libyuv/rotate_argb.h => media/libyuv/include/libyuv/rotate_argb.h
rename : media/webrtc/trunk/third_party/libyuv/include/libyuv/row.h => media/libyuv/include/libyuv/row.h
rename : media/webrtc/trunk/third_party/libyuv/include/libyuv/scale.h => media/libyuv/include/libyuv/scale.h
rename : media/webrtc/trunk/third_party/libyuv/include/libyuv/scale_argb.h => media/libyuv/include/libyuv/scale_argb.h
rename : media/webrtc/trunk/third_party/libyuv/include/libyuv/scale_row.h => media/libyuv/include/libyuv/scale_row.h
rename : media/webrtc/trunk/third_party/libyuv/include/libyuv/version.h => media/libyuv/include/libyuv/version.h
rename : media/webrtc/trunk/third_party/libyuv/include/libyuv/video_common.h => media/libyuv/include/libyuv/video_common.h
rename : media/webrtc/trunk/third_party/libyuv/libyuv.gyp => media/libyuv/libyuv.gyp
rename : media/webrtc/trunk/third_party/libyuv/libyuv.gypi => media/libyuv/libyuv.gypi
rename : media/webrtc/trunk/third_party/libyuv/libyuv_nacl.gyp => media/libyuv/libyuv_nacl.gyp
rename : media/webrtc/trunk/third_party/libyuv/libyuv_test.gyp => media/libyuv/libyuv_test.gyp
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rename : media/webrtc/trunk/third_party/libyuv/source/compare.cc => media/libyuv/source/compare.cc
rename : media/webrtc/trunk/third_party/libyuv/source/compare_common.cc => media/libyuv/source/compare_common.cc
rename : media/webrtc/trunk/third_party/libyuv/source/compare_neon.cc => media/libyuv/source/compare_neon.cc
rename : media/webrtc/trunk/third_party/libyuv/source/compare_posix.cc => media/libyuv/source/compare_posix.cc
rename : media/webrtc/trunk/third_party/libyuv/source/compare_win.cc => media/libyuv/source/compare_win.cc
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rename : media/webrtc/trunk/third_party/libyuv/source/rotate_neon.cc => media/libyuv/source/rotate_neon.cc
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rename : media/webrtc/trunk/third_party/libyuv/source/row_mips.cc => media/libyuv/source/row_mips.cc
rename : media/webrtc/trunk/third_party/libyuv/source/row_neon.cc => media/libyuv/source/row_neon.cc
rename : media/webrtc/trunk/third_party/libyuv/source/row_posix.cc => media/libyuv/source/row_posix.cc
rename : media/webrtc/trunk/third_party/libyuv/source/row_win.cc => media/libyuv/source/row_win.cc
rename : media/webrtc/trunk/third_party/libyuv/source/row_x86.asm => media/libyuv/source/row_x86.asm
rename : media/webrtc/trunk/third_party/libyuv/source/scale.cc => media/libyuv/source/scale.cc
rename : media/webrtc/trunk/third_party/libyuv/source/scale_argb.cc => media/libyuv/source/scale_argb.cc
rename : media/webrtc/trunk/third_party/libyuv/source/scale_common.cc => media/libyuv/source/scale_common.cc
rename : media/webrtc/trunk/third_party/libyuv/source/scale_mips.cc => media/libyuv/source/scale_mips.cc
rename : media/webrtc/trunk/third_party/libyuv/source/scale_neon.cc => media/libyuv/source/scale_neon.cc
rename : media/webrtc/trunk/third_party/libyuv/source/scale_posix.cc => media/libyuv/source/scale_posix.cc
rename : media/webrtc/trunk/third_party/libyuv/source/scale_win.cc => media/libyuv/source/scale_win.cc
rename : media/webrtc/trunk/third_party/libyuv/source/video_common.cc => media/libyuv/source/video_common.cc
rename : media/webrtc/trunk/third_party/libyuv/source/x86inc.asm => media/libyuv/source/x86inc.asm
rename : media/webrtc/trunk/third_party/libyuv/tools/valgrind-libyuv/libyuv_tests.bat => media/libyuv/tools/valgrind-libyuv/libyuv_tests.bat
rename : media/webrtc/trunk/third_party/libyuv/tools/valgrind-libyuv/libyuv_tests.py => media/libyuv/tools/valgrind-libyuv/libyuv_tests.py
rename : media/webrtc/trunk/third_party/libyuv/tools/valgrind-libyuv/libyuv_tests.sh => media/libyuv/tools/valgrind-libyuv/libyuv_tests.sh
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rename : media/webrtc/trunk/third_party/libyuv/tools/valgrind-libyuv/memcheck/suppressions_win32.txt => media/libyuv/tools/valgrind-libyuv/memcheck/suppressions_win32.txt
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rename : media/webrtc/trunk/third_party/libyuv/tools/valgrind-libyuv/tsan/suppressions_win32.txt => media/libyuv/tools/valgrind-libyuv/tsan/suppressions_win32.txt
rename : media/webrtc/trunk/third_party/libyuv/unit_test/basictypes_test.cc => media/libyuv/unit_test/basictypes_test.cc
rename : media/webrtc/trunk/third_party/libyuv/unit_test/compare_test.cc => media/libyuv/unit_test/compare_test.cc
rename : media/webrtc/trunk/third_party/libyuv/unit_test/convert_test.cc => media/libyuv/unit_test/convert_test.cc
rename : media/webrtc/trunk/third_party/libyuv/unit_test/cpu_test.cc => media/libyuv/unit_test/cpu_test.cc
rename : media/webrtc/trunk/third_party/libyuv/unit_test/math_test.cc => media/libyuv/unit_test/math_test.cc
rename : media/webrtc/trunk/third_party/libyuv/unit_test/planar_test.cc => media/libyuv/unit_test/planar_test.cc
rename : media/webrtc/trunk/third_party/libyuv/unit_test/rotate_argb_test.cc => media/libyuv/unit_test/rotate_argb_test.cc
rename : media/webrtc/trunk/third_party/libyuv/unit_test/rotate_test.cc => media/libyuv/unit_test/rotate_test.cc
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rename : media/webrtc/trunk/third_party/libyuv/unit_test/video_common_test.cc => media/libyuv/unit_test/video_common_test.cc
rename : media/webrtc/trunk/third_party/libyuv/util/Makefile => media/libyuv/util/Makefile
rename : media/webrtc/trunk/third_party/libyuv/util/compare.cc => media/libyuv/util/compare.cc
rename : media/webrtc/trunk/third_party/libyuv/util/convert.cc => media/libyuv/util/convert.cc
rename : media/webrtc/trunk/third_party/libyuv/util/cpuid.c => media/libyuv/util/cpuid.c
rename : media/webrtc/trunk/third_party/libyuv/util/psnr.cc => media/libyuv/util/psnr.cc
rename : media/webrtc/trunk/third_party/libyuv/util/psnr.h => media/libyuv/util/psnr.h
rename : media/webrtc/trunk/third_party/libyuv/util/psnr_main.cc => media/libyuv/util/psnr_main.cc
rename : media/webrtc/trunk/third_party/libyuv/util/ssim.cc => media/libyuv/util/ssim.cc
rename : media/webrtc/trunk/third_party/libyuv/util/ssim.h => media/libyuv/util/ssim.h
rename : media/webrtc/trunk/third_party/libyuv/winarm.mk => media/libyuv/winarm.mk
2014-01-30 19:55:04 -05:00

2845 lines
129 KiB
C++

/*
* Copyright 2011 The LibYuv Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "libyuv/row.h"
#ifdef __cplusplus
namespace libyuv {
extern "C" {
#endif
// This module is for GCC Neon
#if !defined(LIBYUV_DISABLE_NEON) && defined(__ARM_NEON__)
// Read 8 Y, 4 U and 4 V from 422
#define READYUV422 \
"vld1.8 {d0}, [%0]! \n" \
"vld1.32 {d2[0]}, [%1]! \n" \
"vld1.32 {d2[1]}, [%2]! \n"
// Read 8 Y, 2 U and 2 V from 422
#define READYUV411 \
"vld1.8 {d0}, [%0]! \n" \
"vld1.16 {d2[0]}, [%1]! \n" \
"vld1.16 {d2[1]}, [%2]! \n" \
"vmov.u8 d3, d2 \n" \
"vzip.u8 d2, d3 \n"
// Read 8 Y, 8 U and 8 V from 444
#define READYUV444 \
"vld1.8 {d0}, [%0]! \n" \
"vld1.8 {d2}, [%1]! \n" \
"vld1.8 {d3}, [%2]! \n" \
"vpaddl.u8 q1, q1 \n" \
"vrshrn.u16 d2, q1, #1 \n"
// Read 8 Y, and set 4 U and 4 V to 128
#define READYUV400 \
"vld1.8 {d0}, [%0]! \n" \
"vmov.u8 d2, #128 \n"
// Read 8 Y and 4 UV from NV12
#define READNV12 \
"vld1.8 {d0}, [%0]! \n" \
"vld1.8 {d2}, [%1]! \n" \
"vmov.u8 d3, d2 \n"/* split odd/even uv apart */\
"vuzp.u8 d2, d3 \n" \
"vtrn.u32 d2, d3 \n"
// Read 8 Y and 4 VU from NV21
#define READNV21 \
"vld1.8 {d0}, [%0]! \n" \
"vld1.8 {d2}, [%1]! \n" \
"vmov.u8 d3, d2 \n"/* split odd/even uv apart */\
"vuzp.u8 d3, d2 \n" \
"vtrn.u32 d2, d3 \n"
// Read 8 YUY2
#define READYUY2 \
"vld2.8 {d0, d2}, [%0]! \n" \
"vmov.u8 d3, d2 \n" \
"vuzp.u8 d2, d3 \n" \
"vtrn.u32 d2, d3 \n"
// Read 8 UYVY
#define READUYVY \
"vld2.8 {d2, d3}, [%0]! \n" \
"vmov.u8 d0, d3 \n" \
"vmov.u8 d3, d2 \n" \
"vuzp.u8 d2, d3 \n" \
"vtrn.u32 d2, d3 \n"
#define YUV422TORGB \
"veor.u8 d2, d26 \n"/*subtract 128 from u and v*/\
"vmull.s8 q8, d2, d24 \n"/* u/v B/R component */\
"vmull.s8 q9, d2, d25 \n"/* u/v G component */\
"vmov.u8 d1, #0 \n"/* split odd/even y apart */\
"vtrn.u8 d0, d1 \n" \
"vsub.s16 q0, q0, q15 \n"/* offset y */\
"vmul.s16 q0, q0, q14 \n" \
"vadd.s16 d18, d19 \n" \
"vqadd.s16 d20, d0, d16 \n" /* B */ \
"vqadd.s16 d21, d1, d16 \n" \
"vqadd.s16 d22, d0, d17 \n" /* R */ \
"vqadd.s16 d23, d1, d17 \n" \
"vqadd.s16 d16, d0, d18 \n" /* G */ \
"vqadd.s16 d17, d1, d18 \n" \
"vqshrun.s16 d0, q10, #6 \n" /* B */ \
"vqshrun.s16 d1, q11, #6 \n" /* G */ \
"vqshrun.s16 d2, q8, #6 \n" /* R */ \
"vmovl.u8 q10, d0 \n"/* set up for reinterleave*/\
"vmovl.u8 q11, d1 \n" \
"vmovl.u8 q8, d2 \n" \
"vtrn.u8 d20, d21 \n" \
"vtrn.u8 d22, d23 \n" \
"vtrn.u8 d16, d17 \n" \
"vmov.u8 d21, d16 \n"
static vec8 kUVToRB = { 127, 127, 127, 127, 102, 102, 102, 102,
0, 0, 0, 0, 0, 0, 0, 0 };
static vec8 kUVToG = { -25, -25, -25, -25, -52, -52, -52, -52,
0, 0, 0, 0, 0, 0, 0, 0 };
void I444ToARGBRow_NEON(const uint8* src_y,
const uint8* src_u,
const uint8* src_v,
uint8* dst_argb,
int width) {
asm volatile (
"vld1.8 {d24}, [%5] \n"
"vld1.8 {d25}, [%6] \n"
"vmov.u8 d26, #128 \n"
"vmov.u16 q14, #74 \n"
"vmov.u16 q15, #16 \n"
".p2align 2 \n"
"1: \n"
READYUV444
YUV422TORGB
"subs %4, %4, #8 \n"
"vmov.u8 d23, #255 \n"
"vst4.8 {d20, d21, d22, d23}, [%3]! \n"
"bgt 1b \n"
: "+r"(src_y), // %0
"+r"(src_u), // %1
"+r"(src_v), // %2
"+r"(dst_argb), // %3
"+r"(width) // %4
: "r"(&kUVToRB), // %5
"r"(&kUVToG) // %6
: "cc", "memory", "q0", "q1", "q2", "q3",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void I422ToARGBRow_NEON(const uint8* src_y,
const uint8* src_u,
const uint8* src_v,
uint8* dst_argb,
int width) {
asm volatile (
"vld1.8 {d24}, [%5] \n"
"vld1.8 {d25}, [%6] \n"
"vmov.u8 d26, #128 \n"
"vmov.u16 q14, #74 \n"
"vmov.u16 q15, #16 \n"
".p2align 2 \n"
"1: \n"
READYUV422
YUV422TORGB
"subs %4, %4, #8 \n"
"vmov.u8 d23, #255 \n"
"vst4.8 {d20, d21, d22, d23}, [%3]! \n"
"bgt 1b \n"
: "+r"(src_y), // %0
"+r"(src_u), // %1
"+r"(src_v), // %2
"+r"(dst_argb), // %3
"+r"(width) // %4
: "r"(&kUVToRB), // %5
"r"(&kUVToG) // %6
: "cc", "memory", "q0", "q1", "q2", "q3",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void I411ToARGBRow_NEON(const uint8* src_y,
const uint8* src_u,
const uint8* src_v,
uint8* dst_argb,
int width) {
asm volatile (
"vld1.8 {d24}, [%5] \n"
"vld1.8 {d25}, [%6] \n"
"vmov.u8 d26, #128 \n"
"vmov.u16 q14, #74 \n"
"vmov.u16 q15, #16 \n"
".p2align 2 \n"
"1: \n"
READYUV411
YUV422TORGB
"subs %4, %4, #8 \n"
"vmov.u8 d23, #255 \n"
"vst4.8 {d20, d21, d22, d23}, [%3]! \n"
"bgt 1b \n"
: "+r"(src_y), // %0
"+r"(src_u), // %1
"+r"(src_v), // %2
"+r"(dst_argb), // %3
"+r"(width) // %4
: "r"(&kUVToRB), // %5
"r"(&kUVToG) // %6
: "cc", "memory", "q0", "q1", "q2", "q3",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void I422ToBGRARow_NEON(const uint8* src_y,
const uint8* src_u,
const uint8* src_v,
uint8* dst_bgra,
int width) {
asm volatile (
"vld1.8 {d24}, [%5] \n"
"vld1.8 {d25}, [%6] \n"
"vmov.u8 d26, #128 \n"
"vmov.u16 q14, #74 \n"
"vmov.u16 q15, #16 \n"
".p2align 2 \n"
"1: \n"
READYUV422
YUV422TORGB
"subs %4, %4, #8 \n"
"vswp.u8 d20, d22 \n"
"vmov.u8 d19, #255 \n"
"vst4.8 {d19, d20, d21, d22}, [%3]! \n"
"bgt 1b \n"
: "+r"(src_y), // %0
"+r"(src_u), // %1
"+r"(src_v), // %2
"+r"(dst_bgra), // %3
"+r"(width) // %4
: "r"(&kUVToRB), // %5
"r"(&kUVToG) // %6
: "cc", "memory", "q0", "q1", "q2", "q3",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void I422ToABGRRow_NEON(const uint8* src_y,
const uint8* src_u,
const uint8* src_v,
uint8* dst_abgr,
int width) {
asm volatile (
"vld1.8 {d24}, [%5] \n"
"vld1.8 {d25}, [%6] \n"
"vmov.u8 d26, #128 \n"
"vmov.u16 q14, #74 \n"
"vmov.u16 q15, #16 \n"
".p2align 2 \n"
"1: \n"
READYUV422
YUV422TORGB
"subs %4, %4, #8 \n"
"vswp.u8 d20, d22 \n"
"vmov.u8 d23, #255 \n"
"vst4.8 {d20, d21, d22, d23}, [%3]! \n"
"bgt 1b \n"
: "+r"(src_y), // %0
"+r"(src_u), // %1
"+r"(src_v), // %2
"+r"(dst_abgr), // %3
"+r"(width) // %4
: "r"(&kUVToRB), // %5
"r"(&kUVToG) // %6
: "cc", "memory", "q0", "q1", "q2", "q3",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void I422ToRGBARow_NEON(const uint8* src_y,
const uint8* src_u,
const uint8* src_v,
uint8* dst_rgba,
int width) {
asm volatile (
"vld1.8 {d24}, [%5] \n"
"vld1.8 {d25}, [%6] \n"
"vmov.u8 d26, #128 \n"
"vmov.u16 q14, #74 \n"
"vmov.u16 q15, #16 \n"
".p2align 2 \n"
"1: \n"
READYUV422
YUV422TORGB
"subs %4, %4, #8 \n"
"vmov.u8 d19, #255 \n"
"vst4.8 {d19, d20, d21, d22}, [%3]! \n"
"bgt 1b \n"
: "+r"(src_y), // %0
"+r"(src_u), // %1
"+r"(src_v), // %2
"+r"(dst_rgba), // %3
"+r"(width) // %4
: "r"(&kUVToRB), // %5
"r"(&kUVToG) // %6
: "cc", "memory", "q0", "q1", "q2", "q3",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void I422ToRGB24Row_NEON(const uint8* src_y,
const uint8* src_u,
const uint8* src_v,
uint8* dst_rgb24,
int width) {
asm volatile (
"vld1.8 {d24}, [%5] \n"
"vld1.8 {d25}, [%6] \n"
"vmov.u8 d26, #128 \n"
"vmov.u16 q14, #74 \n"
"vmov.u16 q15, #16 \n"
".p2align 2 \n"
"1: \n"
READYUV422
YUV422TORGB
"subs %4, %4, #8 \n"
"vst3.8 {d20, d21, d22}, [%3]! \n"
"bgt 1b \n"
: "+r"(src_y), // %0
"+r"(src_u), // %1
"+r"(src_v), // %2
"+r"(dst_rgb24), // %3
"+r"(width) // %4
: "r"(&kUVToRB), // %5
"r"(&kUVToG) // %6
: "cc", "memory", "q0", "q1", "q2", "q3",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void I422ToRAWRow_NEON(const uint8* src_y,
const uint8* src_u,
const uint8* src_v,
uint8* dst_raw,
int width) {
asm volatile (
"vld1.8 {d24}, [%5] \n"
"vld1.8 {d25}, [%6] \n"
"vmov.u8 d26, #128 \n"
"vmov.u16 q14, #74 \n"
"vmov.u16 q15, #16 \n"
".p2align 2 \n"
"1: \n"
READYUV422
YUV422TORGB
"subs %4, %4, #8 \n"
"vswp.u8 d20, d22 \n"
"vst3.8 {d20, d21, d22}, [%3]! \n"
"bgt 1b \n"
: "+r"(src_y), // %0
"+r"(src_u), // %1
"+r"(src_v), // %2
"+r"(dst_raw), // %3
"+r"(width) // %4
: "r"(&kUVToRB), // %5
"r"(&kUVToG) // %6
: "cc", "memory", "q0", "q1", "q2", "q3",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
#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 */
void I422ToRGB565Row_NEON(const uint8* src_y,
const uint8* src_u,
const uint8* src_v,
uint8* dst_rgb565,
int width) {
asm volatile (
"vld1.8 {d24}, [%5] \n"
"vld1.8 {d25}, [%6] \n"
"vmov.u8 d26, #128 \n"
"vmov.u16 q14, #74 \n"
"vmov.u16 q15, #16 \n"
".p2align 2 \n"
"1: \n"
READYUV422
YUV422TORGB
"subs %4, %4, #8 \n"
ARGBTORGB565
"vst1.8 {q0}, [%3]! \n" // store 8 pixels RGB565.
"bgt 1b \n"
: "+r"(src_y), // %0
"+r"(src_u), // %1
"+r"(src_v), // %2
"+r"(dst_rgb565), // %3
"+r"(width) // %4
: "r"(&kUVToRB), // %5
"r"(&kUVToG) // %6
: "cc", "memory", "q0", "q1", "q2", "q3",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
#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 */
void I422ToARGB1555Row_NEON(const uint8* src_y,
const uint8* src_u,
const uint8* src_v,
uint8* dst_argb1555,
int width) {
asm volatile (
"vld1.8 {d24}, [%5] \n"
"vld1.8 {d25}, [%6] \n"
"vmov.u8 d26, #128 \n"
"vmov.u16 q14, #74 \n"
"vmov.u16 q15, #16 \n"
".p2align 2 \n"
"1: \n"
READYUV422
YUV422TORGB
"subs %4, %4, #8 \n"
"vmov.u8 d23, #255 \n"
ARGBTOARGB1555
"vst1.8 {q0}, [%3]! \n" // store 8 pixels ARGB1555.
"bgt 1b \n"
: "+r"(src_y), // %0
"+r"(src_u), // %1
"+r"(src_v), // %2
"+r"(dst_argb1555), // %3
"+r"(width) // %4
: "r"(&kUVToRB), // %5
"r"(&kUVToG) // %6
: "cc", "memory", "q0", "q1", "q2", "q3",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
#define ARGBTOARGB4444 \
"vshr.u8 d20, d20, #4 \n" /* B */ \
"vbic.32 d21, d21, d4 \n" /* G */ \
"vshr.u8 d22, d22, #4 \n" /* R */ \
"vbic.32 d23, d23, d4 \n" /* A */ \
"vorr d0, d20, d21 \n" /* BG */ \
"vorr d1, d22, d23 \n" /* RA */ \
"vzip.u8 d0, d1 \n" /* BGRA */
void I422ToARGB4444Row_NEON(const uint8* src_y,
const uint8* src_u,
const uint8* src_v,
uint8* dst_argb4444,
int width) {
asm volatile (
"vld1.8 {d24}, [%5] \n"
"vld1.8 {d25}, [%6] \n"
"vmov.u8 d26, #128 \n"
"vmov.u16 q14, #74 \n"
"vmov.u16 q15, #16 \n"
"vmov.u8 d4, #0x0f \n" // bits to clear with vbic.
".p2align 2 \n"
"1: \n"
READYUV422
YUV422TORGB
"subs %4, %4, #8 \n"
"vmov.u8 d23, #255 \n"
ARGBTOARGB4444
"vst1.8 {q0}, [%3]! \n" // store 8 pixels ARGB4444.
"bgt 1b \n"
: "+r"(src_y), // %0
"+r"(src_u), // %1
"+r"(src_v), // %2
"+r"(dst_argb4444), // %3
"+r"(width) // %4
: "r"(&kUVToRB), // %5
"r"(&kUVToG) // %6
: "cc", "memory", "q0", "q1", "q2", "q3",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void YToARGBRow_NEON(const uint8* src_y,
uint8* dst_argb,
int width) {
asm volatile (
"vld1.8 {d24}, [%3] \n"
"vld1.8 {d25}, [%4] \n"
"vmov.u8 d26, #128 \n"
"vmov.u16 q14, #74 \n"
"vmov.u16 q15, #16 \n"
".p2align 2 \n"
"1: \n"
READYUV400
YUV422TORGB
"subs %2, %2, #8 \n"
"vmov.u8 d23, #255 \n"
"vst4.8 {d20, d21, d22, d23}, [%1]! \n"
"bgt 1b \n"
: "+r"(src_y), // %0
"+r"(dst_argb), // %1
"+r"(width) // %2
: "r"(&kUVToRB), // %3
"r"(&kUVToG) // %4
: "cc", "memory", "q0", "q1", "q2", "q3",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void I400ToARGBRow_NEON(const uint8* src_y,
uint8* dst_argb,
int width) {
asm volatile (
".p2align 2 \n"
"vmov.u8 d23, #255 \n"
"1: \n"
"vld1.8 {d20}, [%0]! \n"
"vmov d21, d20 \n"
"vmov d22, d20 \n"
"subs %2, %2, #8 \n"
"vst4.8 {d20, d21, d22, d23}, [%1]! \n"
"bgt 1b \n"
: "+r"(src_y), // %0
"+r"(dst_argb), // %1
"+r"(width) // %2
:
: "cc", "memory", "d20", "d21", "d22", "d23"
);
}
void NV12ToARGBRow_NEON(const uint8* src_y,
const uint8* src_uv,
uint8* dst_argb,
int width) {
asm volatile (
"vld1.8 {d24}, [%4] \n"
"vld1.8 {d25}, [%5] \n"
"vmov.u8 d26, #128 \n"
"vmov.u16 q14, #74 \n"
"vmov.u16 q15, #16 \n"
".p2align 2 \n"
"1: \n"
READNV12
YUV422TORGB
"subs %3, %3, #8 \n"
"vmov.u8 d23, #255 \n"
"vst4.8 {d20, d21, d22, d23}, [%2]! \n"
"bgt 1b \n"
: "+r"(src_y), // %0
"+r"(src_uv), // %1
"+r"(dst_argb), // %2
"+r"(width) // %3
: "r"(&kUVToRB), // %4
"r"(&kUVToG) // %5
: "cc", "memory", "q0", "q1", "q2", "q3",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void NV21ToARGBRow_NEON(const uint8* src_y,
const uint8* src_uv,
uint8* dst_argb,
int width) {
asm volatile (
"vld1.8 {d24}, [%4] \n"
"vld1.8 {d25}, [%5] \n"
"vmov.u8 d26, #128 \n"
"vmov.u16 q14, #74 \n"
"vmov.u16 q15, #16 \n"
".p2align 2 \n"
"1: \n"
READNV21
YUV422TORGB
"subs %3, %3, #8 \n"
"vmov.u8 d23, #255 \n"
"vst4.8 {d20, d21, d22, d23}, [%2]! \n"
"bgt 1b \n"
: "+r"(src_y), // %0
"+r"(src_uv), // %1
"+r"(dst_argb), // %2
"+r"(width) // %3
: "r"(&kUVToRB), // %4
"r"(&kUVToG) // %5
: "cc", "memory", "q0", "q1", "q2", "q3",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void NV12ToRGB565Row_NEON(const uint8* src_y,
const uint8* src_uv,
uint8* dst_rgb565,
int width) {
asm volatile (
"vld1.8 {d24}, [%4] \n"
"vld1.8 {d25}, [%5] \n"
"vmov.u8 d26, #128 \n"
"vmov.u16 q14, #74 \n"
"vmov.u16 q15, #16 \n"
".p2align 2 \n"
"1: \n"
READNV12
YUV422TORGB
"subs %3, %3, #8 \n"
ARGBTORGB565
"vst1.8 {q0}, [%2]! \n" // store 8 pixels RGB565.
"bgt 1b \n"
: "+r"(src_y), // %0
"+r"(src_uv), // %1
"+r"(dst_rgb565), // %2
"+r"(width) // %3
: "r"(&kUVToRB), // %4
"r"(&kUVToG) // %5
: "cc", "memory", "q0", "q1", "q2", "q3",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void NV21ToRGB565Row_NEON(const uint8* src_y,
const uint8* src_uv,
uint8* dst_rgb565,
int width) {
asm volatile (
"vld1.8 {d24}, [%4] \n"
"vld1.8 {d25}, [%5] \n"
"vmov.u8 d26, #128 \n"
"vmov.u16 q14, #74 \n"
"vmov.u16 q15, #16 \n"
".p2align 2 \n"
"1: \n"
READNV21
YUV422TORGB
"subs %3, %3, #8 \n"
ARGBTORGB565
"vst1.8 {q0}, [%2]! \n" // store 8 pixels RGB565.
"bgt 1b \n"
: "+r"(src_y), // %0
"+r"(src_uv), // %1
"+r"(dst_rgb565), // %2
"+r"(width) // %3
: "r"(&kUVToRB), // %4
"r"(&kUVToG) // %5
: "cc", "memory", "q0", "q1", "q2", "q3",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void YUY2ToARGBRow_NEON(const uint8* src_yuy2,
uint8* dst_argb,
int width) {
asm volatile (
"vld1.8 {d24}, [%3] \n"
"vld1.8 {d25}, [%4] \n"
"vmov.u8 d26, #128 \n"
"vmov.u16 q14, #74 \n"
"vmov.u16 q15, #16 \n"
".p2align 2 \n"
"1: \n"
READYUY2
YUV422TORGB
"subs %2, %2, #8 \n"
"vmov.u8 d23, #255 \n"
"vst4.8 {d20, d21, d22, d23}, [%1]! \n"
"bgt 1b \n"
: "+r"(src_yuy2), // %0
"+r"(dst_argb), // %1
"+r"(width) // %2
: "r"(&kUVToRB), // %3
"r"(&kUVToG) // %4
: "cc", "memory", "q0", "q1", "q2", "q3",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void UYVYToARGBRow_NEON(const uint8* src_uyvy,
uint8* dst_argb,
int width) {
asm volatile (
"vld1.8 {d24}, [%3] \n"
"vld1.8 {d25}, [%4] \n"
"vmov.u8 d26, #128 \n"
"vmov.u16 q14, #74 \n"
"vmov.u16 q15, #16 \n"
".p2align 2 \n"
"1: \n"
READUYVY
YUV422TORGB
"subs %2, %2, #8 \n"
"vmov.u8 d23, #255 \n"
"vst4.8 {d20, d21, d22, d23}, [%1]! \n"
"bgt 1b \n"
: "+r"(src_uyvy), // %0
"+r"(dst_argb), // %1
"+r"(width) // %2
: "r"(&kUVToRB), // %3
"r"(&kUVToG) // %4
: "cc", "memory", "q0", "q1", "q2", "q3",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
// Reads 16 pairs of UV and write even values to dst_u and odd to dst_v.
void SplitUVRow_NEON(const uint8* src_uv, uint8* dst_u, uint8* dst_v,
int width) {
asm volatile (
".p2align 2 \n"
"1: \n"
"vld2.8 {q0, q1}, [%0]! \n" // load 16 pairs of UV
"subs %3, %3, #16 \n" // 16 processed per loop
"vst1.8 {q0}, [%1]! \n" // store U
"vst1.8 {q1}, [%2]! \n" // store V
"bgt 1b \n"
: "+r"(src_uv), // %0
"+r"(dst_u), // %1
"+r"(dst_v), // %2
"+r"(width) // %3 // Output registers
: // Input registers
: "cc", "memory", "q0", "q1" // Clobber List
);
}
// Reads 16 U's and V's and writes out 16 pairs of UV.
void MergeUVRow_NEON(const uint8* src_u, const uint8* src_v, uint8* dst_uv,
int width) {
asm volatile (
".p2align 2 \n"
"1: \n"
"vld1.8 {q0}, [%0]! \n" // load U
"vld1.8 {q1}, [%1]! \n" // load V
"subs %3, %3, #16 \n" // 16 processed per loop
"vst2.u8 {q0, q1}, [%2]! \n" // store 16 pairs of UV
"bgt 1b \n"
:
"+r"(src_u), // %0
"+r"(src_v), // %1
"+r"(dst_uv), // %2
"+r"(width) // %3 // Output registers
: // Input registers
: "cc", "memory", "q0", "q1" // Clobber List
);
}
// Copy multiple of 32. vld4.8 allow unaligned and is fastest on a15.
void CopyRow_NEON(const uint8* src, uint8* dst, int count) {
asm volatile (
".p2align 2 \n"
"1: \n"
"vld1.8 {d0, d1, d2, d3}, [%0]! \n" // load 32
"subs %2, %2, #32 \n" // 32 processed per loop
"vst1.8 {d0, d1, d2, d3}, [%1]! \n" // store 32
"bgt 1b \n"
: "+r"(src), // %0
"+r"(dst), // %1
"+r"(count) // %2 // Output registers
: // Input registers
: "cc", "memory", "q0", "q1" // Clobber List
);
}
// SetRow8 writes 'count' bytes using a 32 bit value repeated.
void SetRow_NEON(uint8* dst, uint32 v32, int count) {
asm volatile (
"vdup.u32 q0, %2 \n" // duplicate 4 ints
"1: \n"
"subs %1, %1, #16 \n" // 16 bytes per loop
"vst1.8 {q0}, [%0]! \n" // store
"bgt 1b \n"
: "+r"(dst), // %0
"+r"(count) // %1
: "r"(v32) // %2
: "cc", "memory", "q0"
);
}
// TODO(fbarchard): Make fully assembler
// SetRow32 writes 'count' words using a 32 bit value repeated.
void ARGBSetRows_NEON(uint8* dst, uint32 v32, int width,
int dst_stride, int height) {
for (int y = 0; y < height; ++y) {
SetRow_NEON(dst, v32, width << 2);
dst += dst_stride;
}
}
void MirrorRow_NEON(const uint8* src, uint8* dst, int width) {
asm volatile (
// Start at end of source row.
"mov r3, #-16 \n"
"add %0, %0, %2 \n"
"sub %0, #16 \n"
".p2align 2 \n"
"1: \n"
"vld1.8 {q0}, [%0], r3 \n" // src -= 16
"subs %2, #16 \n" // 16 pixels per loop.
"vrev64.8 q0, q0 \n"
"vst1.8 {d1}, [%1]! \n" // dst += 16
"vst1.8 {d0}, [%1]! \n"
"bgt 1b \n"
: "+r"(src), // %0
"+r"(dst), // %1
"+r"(width) // %2
:
: "cc", "memory", "r3", "q0"
);
}
void MirrorUVRow_NEON(const uint8* src_uv, uint8* dst_u, uint8* dst_v,
int width) {
asm volatile (
// Start at end of source row.
"mov r12, #-16 \n"
"add %0, %0, %3, lsl #1 \n"
"sub %0, #16 \n"
".p2align 2 \n"
"1: \n"
"vld2.8 {d0, d1}, [%0], r12 \n" // src -= 16
"subs %3, #8 \n" // 8 pixels per loop.
"vrev64.8 q0, q0 \n"
"vst1.8 {d0}, [%1]! \n" // dst += 8
"vst1.8 {d1}, [%2]! \n"
"bgt 1b \n"
: "+r"(src_uv), // %0
"+r"(dst_u), // %1
"+r"(dst_v), // %2
"+r"(width) // %3
:
: "cc", "memory", "r12", "q0"
);
}
void ARGBMirrorRow_NEON(const uint8* src, uint8* dst, int width) {
asm volatile (
// Start at end of source row.
"mov r3, #-16 \n"
"add %0, %0, %2, lsl #2 \n"
"sub %0, #16 \n"
".p2align 2 \n"
"1: \n"
"vld1.8 {q0}, [%0], r3 \n" // src -= 16
"subs %2, #4 \n" // 4 pixels per loop.
"vrev64.32 q0, q0 \n"
"vst1.8 {d1}, [%1]! \n" // dst += 16
"vst1.8 {d0}, [%1]! \n"
"bgt 1b \n"
: "+r"(src), // %0
"+r"(dst), // %1
"+r"(width) // %2
:
: "cc", "memory", "r3", "q0"
);
}
void RGB24ToARGBRow_NEON(const uint8* src_rgb24, uint8* dst_argb, int pix) {
asm volatile (
"vmov.u8 d4, #255 \n" // Alpha
".p2align 2 \n"
"1: \n"
"vld3.8 {d1, d2, d3}, [%0]! \n" // load 8 pixels of RGB24.
"subs %2, %2, #8 \n" // 8 processed per loop.
"vst4.8 {d1, d2, d3, d4}, [%1]! \n" // store 8 pixels of ARGB.
"bgt 1b \n"
: "+r"(src_rgb24), // %0
"+r"(dst_argb), // %1
"+r"(pix) // %2
:
: "cc", "memory", "d1", "d2", "d3", "d4" // Clobber List
);
}
void RAWToARGBRow_NEON(const uint8* src_raw, uint8* dst_argb, int pix) {
asm volatile (
"vmov.u8 d4, #255 \n" // Alpha
".p2align 2 \n"
"1: \n"
"vld3.8 {d1, d2, d3}, [%0]! \n" // load 8 pixels of RAW.
"subs %2, %2, #8 \n" // 8 processed per loop.
"vswp.u8 d1, d3 \n" // swap R, B
"vst4.8 {d1, d2, d3, d4}, [%1]! \n" // store 8 pixels of ARGB.
"bgt 1b \n"
: "+r"(src_raw), // %0
"+r"(dst_argb), // %1
"+r"(pix) // %2
:
: "cc", "memory", "d1", "d2", "d3", "d4" // Clobber List
);
}
#define RGB565TOARGB \
"vshrn.u16 d6, q0, #5 \n" /* G xxGGGGGG */ \
"vuzp.u8 d0, d1 \n" /* d0 xxxBBBBB RRRRRxxx */ \
"vshl.u8 d6, d6, #2 \n" /* G GGGGGG00 upper 6 */ \
"vshr.u8 d1, d1, #3 \n" /* R 000RRRRR lower 5 */ \
"vshl.u8 q0, q0, #3 \n" /* B,R BBBBB000 upper 5 */ \
"vshr.u8 q2, q0, #5 \n" /* B,R 00000BBB lower 3 */ \
"vorr.u8 d0, d0, d4 \n" /* B */ \
"vshr.u8 d4, d6, #6 \n" /* G 000000GG lower 2 */ \
"vorr.u8 d2, d1, d5 \n" /* R */ \
"vorr.u8 d1, d4, d6 \n" /* G */
void RGB565ToARGBRow_NEON(const uint8* src_rgb565, uint8* dst_argb, int pix) {
asm volatile (
"vmov.u8 d3, #255 \n" // Alpha
".p2align 2 \n"
"1: \n"
"vld1.8 {q0}, [%0]! \n" // load 8 RGB565 pixels.
"subs %2, %2, #8 \n" // 8 processed per loop.
RGB565TOARGB
"vst4.8 {d0, d1, d2, d3}, [%1]! \n" // store 8 pixels of ARGB.
"bgt 1b \n"
: "+r"(src_rgb565), // %0
"+r"(dst_argb), // %1
"+r"(pix) // %2
:
: "cc", "memory", "q0", "q1", "q2", "q3" // Clobber List
);
}
#define ARGB1555TOARGB \
"vshrn.u16 d7, q0, #8 \n" /* A Arrrrrxx */ \
"vshr.u8 d6, d7, #2 \n" /* R xxxRRRRR */ \
"vshrn.u16 d5, q0, #5 \n" /* G xxxGGGGG */ \
"vmovn.u16 d4, q0 \n" /* B xxxBBBBB */ \
"vshr.u8 d7, d7, #7 \n" /* A 0000000A */ \
"vneg.s8 d7, d7 \n" /* A AAAAAAAA upper 8 */ \
"vshl.u8 d6, d6, #3 \n" /* R RRRRR000 upper 5 */ \
"vshr.u8 q1, q3, #5 \n" /* R,A 00000RRR lower 3 */ \
"vshl.u8 q0, q2, #3 \n" /* B,G BBBBB000 upper 5 */ \
"vshr.u8 q2, q0, #5 \n" /* B,G 00000BBB lower 3 */ \
"vorr.u8 q1, q1, q3 \n" /* R,A */ \
"vorr.u8 q0, q0, q2 \n" /* B,G */ \
// RGB555TOARGB is same as ARGB1555TOARGB but ignores alpha.
#define RGB555TOARGB \
"vshrn.u16 d6, q0, #5 \n" /* G xxxGGGGG */ \
"vuzp.u8 d0, d1 \n" /* d0 xxxBBBBB xRRRRRxx */ \
"vshl.u8 d6, d6, #3 \n" /* G GGGGG000 upper 5 */ \
"vshr.u8 d1, d1, #2 \n" /* R 00xRRRRR lower 5 */ \
"vshl.u8 q0, q0, #3 \n" /* B,R BBBBB000 upper 5 */ \
"vshr.u8 q2, q0, #5 \n" /* B,R 00000BBB lower 3 */ \
"vorr.u8 d0, d0, d4 \n" /* B */ \
"vshr.u8 d4, d6, #5 \n" /* G 00000GGG lower 3 */ \
"vorr.u8 d2, d1, d5 \n" /* R */ \
"vorr.u8 d1, d4, d6 \n" /* G */
void ARGB1555ToARGBRow_NEON(const uint8* src_argb1555, uint8* dst_argb,
int pix) {
asm volatile (
"vmov.u8 d3, #255 \n" // Alpha
".p2align 2 \n"
"1: \n"
"vld1.8 {q0}, [%0]! \n" // load 8 ARGB1555 pixels.
"subs %2, %2, #8 \n" // 8 processed per loop.
ARGB1555TOARGB
"vst4.8 {d0, d1, d2, d3}, [%1]! \n" // store 8 pixels of ARGB.
"bgt 1b \n"
: "+r"(src_argb1555), // %0
"+r"(dst_argb), // %1
"+r"(pix) // %2
:
: "cc", "memory", "q0", "q1", "q2", "q3" // Clobber List
);
}
#define ARGB4444TOARGB \
"vuzp.u8 d0, d1 \n" /* d0 BG, d1 RA */ \
"vshl.u8 q2, q0, #4 \n" /* B,R BBBB0000 */ \
"vshr.u8 q1, q0, #4 \n" /* G,A 0000GGGG */ \
"vshr.u8 q0, q2, #4 \n" /* B,R 0000BBBB */ \
"vorr.u8 q0, q0, q2 \n" /* B,R BBBBBBBB */ \
"vshl.u8 q2, q1, #4 \n" /* G,A GGGG0000 */ \
"vorr.u8 q1, q1, q2 \n" /* G,A GGGGGGGG */ \
"vswp.u8 d1, d2 \n" /* B,R,G,A -> B,G,R,A */
void ARGB4444ToARGBRow_NEON(const uint8* src_argb4444, uint8* dst_argb,
int pix) {
asm volatile (
"vmov.u8 d3, #255 \n" // Alpha
".p2align 2 \n"
"1: \n"
"vld1.8 {q0}, [%0]! \n" // load 8 ARGB4444 pixels.
"subs %2, %2, #8 \n" // 8 processed per loop.
ARGB4444TOARGB
"vst4.8 {d0, d1, d2, d3}, [%1]! \n" // store 8 pixels of ARGB.
"bgt 1b \n"
: "+r"(src_argb4444), // %0
"+r"(dst_argb), // %1
"+r"(pix) // %2
:
: "cc", "memory", "q0", "q1", "q2" // Clobber List
);
}
void ARGBToRGB24Row_NEON(const uint8* src_argb, uint8* dst_rgb24, int pix) {
asm volatile (
".p2align 2 \n"
"1: \n"
"vld4.8 {d1, d2, d3, d4}, [%0]! \n" // load 8 pixels of ARGB.
"subs %2, %2, #8 \n" // 8 processed per loop.
"vst3.8 {d1, d2, d3}, [%1]! \n" // store 8 pixels of RGB24.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_rgb24), // %1
"+r"(pix) // %2
:
: "cc", "memory", "d1", "d2", "d3", "d4" // Clobber List
);
}
void ARGBToRAWRow_NEON(const uint8* src_argb, uint8* dst_raw, int pix) {
asm volatile (
".p2align 2 \n"
"1: \n"
"vld4.8 {d1, d2, d3, d4}, [%0]! \n" // load 8 pixels of ARGB.
"subs %2, %2, #8 \n" // 8 processed per loop.
"vswp.u8 d1, d3 \n" // swap R, B
"vst3.8 {d1, d2, d3}, [%1]! \n" // store 8 pixels of RAW.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_raw), // %1
"+r"(pix) // %2
:
: "cc", "memory", "d1", "d2", "d3", "d4" // Clobber List
);
}
void YUY2ToYRow_NEON(const uint8* src_yuy2, uint8* dst_y, int pix) {
asm volatile (
".p2align 2 \n"
"1: \n"
"vld2.8 {q0, q1}, [%0]! \n" // load 16 pixels of YUY2.
"subs %2, %2, #16 \n" // 16 processed per loop.
"vst1.8 {q0}, [%1]! \n" // store 16 pixels of Y.
"bgt 1b \n"
: "+r"(src_yuy2), // %0
"+r"(dst_y), // %1
"+r"(pix) // %2
:
: "cc", "memory", "q0", "q1" // Clobber List
);
}
void UYVYToYRow_NEON(const uint8* src_uyvy, uint8* dst_y, int pix) {
asm volatile (
".p2align 2 \n"
"1: \n"
"vld2.8 {q0, q1}, [%0]! \n" // load 16 pixels of UYVY.
"subs %2, %2, #16 \n" // 16 processed per loop.
"vst1.8 {q1}, [%1]! \n" // store 16 pixels of Y.
"bgt 1b \n"
: "+r"(src_uyvy), // %0
"+r"(dst_y), // %1
"+r"(pix) // %2
:
: "cc", "memory", "q0", "q1" // Clobber List
);
}
void YUY2ToUV422Row_NEON(const uint8* src_yuy2, uint8* dst_u, uint8* dst_v,
int pix) {
asm volatile (
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d1, d2, d3}, [%0]! \n" // load 16 pixels of YUY2.
"subs %3, %3, #16 \n" // 16 pixels = 8 UVs.
"vst1.8 {d1}, [%1]! \n" // store 8 U.
"vst1.8 {d3}, [%2]! \n" // store 8 V.
"bgt 1b \n"
: "+r"(src_yuy2), // %0
"+r"(dst_u), // %1
"+r"(dst_v), // %2
"+r"(pix) // %3
:
: "cc", "memory", "d0", "d1", "d2", "d3" // Clobber List
);
}
void UYVYToUV422Row_NEON(const uint8* src_uyvy, uint8* dst_u, uint8* dst_v,
int pix) {
asm volatile (
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d1, d2, d3}, [%0]! \n" // load 16 pixels of UYVY.
"subs %3, %3, #16 \n" // 16 pixels = 8 UVs.
"vst1.8 {d0}, [%1]! \n" // store 8 U.
"vst1.8 {d2}, [%2]! \n" // store 8 V.
"bgt 1b \n"
: "+r"(src_uyvy), // %0
"+r"(dst_u), // %1
"+r"(dst_v), // %2
"+r"(pix) // %3
:
: "cc", "memory", "d0", "d1", "d2", "d3" // Clobber List
);
}
void YUY2ToUVRow_NEON(const uint8* src_yuy2, int stride_yuy2,
uint8* dst_u, uint8* dst_v, int pix) {
asm volatile (
"add %1, %0, %1 \n" // stride + src_yuy2
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d1, d2, d3}, [%0]! \n" // load 16 pixels of YUY2.
"subs %4, %4, #16 \n" // 16 pixels = 8 UVs.
"vld4.8 {d4, d5, d6, d7}, [%1]! \n" // load next row YUY2.
"vrhadd.u8 d1, d1, d5 \n" // average rows of U
"vrhadd.u8 d3, d3, d7 \n" // average rows of V
"vst1.8 {d1}, [%2]! \n" // store 8 U.
"vst1.8 {d3}, [%3]! \n" // store 8 V.
"bgt 1b \n"
: "+r"(src_yuy2), // %0
"+r"(stride_yuy2), // %1
"+r"(dst_u), // %2
"+r"(dst_v), // %3
"+r"(pix) // %4
:
: "cc", "memory", "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7" // Clobber List
);
}
void UYVYToUVRow_NEON(const uint8* src_uyvy, int stride_uyvy,
uint8* dst_u, uint8* dst_v, int pix) {
asm volatile (
"add %1, %0, %1 \n" // stride + src_uyvy
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d1, d2, d3}, [%0]! \n" // load 16 pixels of UYVY.
"subs %4, %4, #16 \n" // 16 pixels = 8 UVs.
"vld4.8 {d4, d5, d6, d7}, [%1]! \n" // load next row UYVY.
"vrhadd.u8 d0, d0, d4 \n" // average rows of U
"vrhadd.u8 d2, d2, d6 \n" // average rows of V
"vst1.8 {d0}, [%2]! \n" // store 8 U.
"vst1.8 {d2}, [%3]! \n" // store 8 V.
"bgt 1b \n"
: "+r"(src_uyvy), // %0
"+r"(stride_uyvy), // %1
"+r"(dst_u), // %2
"+r"(dst_v), // %3
"+r"(pix) // %4
:
: "cc", "memory", "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7" // Clobber List
);
}
void HalfRow_NEON(const uint8* src_uv, int src_uv_stride,
uint8* dst_uv, int pix) {
asm volatile (
// change the stride to row 2 pointer
"add %1, %0 \n"
"1: \n"
"vld1.8 {q0}, [%0]! \n" // load row 1 16 pixels.
"subs %3, %3, #16 \n" // 16 processed per loop
"vld1.8 {q1}, [%1]! \n" // load row 2 16 pixels.
"vrhadd.u8 q0, q1 \n" // average row 1 and 2
"vst1.8 {q0}, [%2]! \n"
"bgt 1b \n"
: "+r"(src_uv), // %0
"+r"(src_uv_stride), // %1
"+r"(dst_uv), // %2
"+r"(pix) // %3
:
: "cc", "memory", "q0", "q1" // Clobber List
);
}
// Select 2 channels from ARGB on alternating pixels. e.g. BGBGBGBG
void ARGBToBayerRow_NEON(const uint8* src_argb, uint8* dst_bayer,
uint32 selector, int pix) {
asm volatile (
"vmov.u32 d6[0], %3 \n" // selector
"1: \n"
"vld1.8 {q0, q1}, [%0]! \n" // load row 8 pixels.
"subs %2, %2, #8 \n" // 8 processed per loop
"vtbl.8 d4, {d0, d1}, d6 \n" // look up 4 pixels
"vtbl.8 d5, {d2, d3}, d6 \n" // look up 4 pixels
"vtrn.u32 d4, d5 \n" // combine 8 pixels
"vst1.8 {d4}, [%1]! \n" // store 8.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_bayer), // %1
"+r"(pix) // %2
: "r"(selector) // %3
: "cc", "memory", "q0", "q1", "q2", "q3" // Clobber List
);
}
// Select G channels from ARGB. e.g. GGGGGGGG
void ARGBToBayerGGRow_NEON(const uint8* src_argb, uint8* dst_bayer,
uint32 /*selector*/, int pix) {
asm volatile (
"1: \n"
"vld4.8 {d0, d1, d2, d3}, [%0]! \n" // load row 8 pixels.
"subs %2, %2, #8 \n" // 8 processed per loop
"vst1.8 {d1}, [%1]! \n" // store 8 G's.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_bayer), // %1
"+r"(pix) // %2
:
: "cc", "memory", "q0", "q1" // Clobber List
);
}
// For BGRAToARGB, ABGRToARGB, RGBAToARGB, and ARGBToRGBA.
void ARGBShuffleRow_NEON(const uint8* src_argb, uint8* dst_argb,
const uint8* shuffler, int pix) {
asm volatile (
"vld1.8 {q2}, [%3] \n" // shuffler
"1: \n"
"vld1.8 {q0}, [%0]! \n" // load 4 pixels.
"subs %2, %2, #4 \n" // 4 processed per loop
"vtbl.8 d2, {d0, d1}, d4 \n" // look up 2 first pixels
"vtbl.8 d3, {d0, d1}, d5 \n" // look up 2 next pixels
"vst1.8 {q1}, [%1]! \n" // store 4.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_argb), // %1
"+r"(pix) // %2
: "r"(shuffler) // %3
: "cc", "memory", "q0", "q1", "q2" // Clobber List
);
}
void I422ToYUY2Row_NEON(const uint8* src_y,
const uint8* src_u,
const uint8* src_v,
uint8* dst_yuy2, int width) {
asm volatile (
".p2align 2 \n"
"1: \n"
"vld2.8 {d0, d2}, [%0]! \n" // load 16 Ys
"vld1.8 {d1}, [%1]! \n" // load 8 Us
"vld1.8 {d3}, [%2]! \n" // load 8 Vs
"subs %4, %4, #16 \n" // 16 pixels
"vst4.8 {d0, d1, d2, d3}, [%3]! \n" // Store 8 YUY2/16 pixels.
"bgt 1b \n"
: "+r"(src_y), // %0
"+r"(src_u), // %1
"+r"(src_v), // %2
"+r"(dst_yuy2), // %3
"+r"(width) // %4
:
: "cc", "memory", "d0", "d1", "d2", "d3"
);
}
void I422ToUYVYRow_NEON(const uint8* src_y,
const uint8* src_u,
const uint8* src_v,
uint8* dst_uyvy, int width) {
asm volatile (
".p2align 2 \n"
"1: \n"
"vld2.8 {d1, d3}, [%0]! \n" // load 16 Ys
"vld1.8 {d0}, [%1]! \n" // load 8 Us
"vld1.8 {d2}, [%2]! \n" // load 8 Vs
"subs %4, %4, #16 \n" // 16 pixels
"vst4.8 {d0, d1, d2, d3}, [%3]! \n" // Store 8 UYVY/16 pixels.
"bgt 1b \n"
: "+r"(src_y), // %0
"+r"(src_u), // %1
"+r"(src_v), // %2
"+r"(dst_uyvy), // %3
"+r"(width) // %4
:
: "cc", "memory", "d0", "d1", "d2", "d3"
);
}
void ARGBToRGB565Row_NEON(const uint8* src_argb, uint8* dst_rgb565, int pix) {
asm volatile (
".p2align 2 \n"
"1: \n"
"vld4.8 {d20, d21, d22, d23}, [%0]! \n" // load 8 pixels of ARGB.
"subs %2, %2, #8 \n" // 8 processed per loop.
ARGBTORGB565
"vst1.8 {q0}, [%1]! \n" // store 8 pixels RGB565.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_rgb565), // %1
"+r"(pix) // %2
:
: "cc", "memory", "q0", "q8", "q9", "q10", "q11"
);
}
void ARGBToARGB1555Row_NEON(const uint8* src_argb, uint8* dst_argb1555,
int pix) {
asm volatile (
".p2align 2 \n"
"1: \n"
"vld4.8 {d20, d21, d22, d23}, [%0]! \n" // load 8 pixels of ARGB.
"subs %2, %2, #8 \n" // 8 processed per loop.
ARGBTOARGB1555
"vst1.8 {q0}, [%1]! \n" // store 8 pixels ARGB1555.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_argb1555), // %1
"+r"(pix) // %2
:
: "cc", "memory", "q0", "q8", "q9", "q10", "q11"
);
}
void ARGBToARGB4444Row_NEON(const uint8* src_argb, uint8* dst_argb4444,
int pix) {
asm volatile (
"vmov.u8 d4, #0x0f \n" // bits to clear with vbic.
".p2align 2 \n"
"1: \n"
"vld4.8 {d20, d21, d22, d23}, [%0]! \n" // load 8 pixels of ARGB.
"subs %2, %2, #8 \n" // 8 processed per loop.
ARGBTOARGB4444
"vst1.8 {q0}, [%1]! \n" // store 8 pixels ARGB4444.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_argb4444), // %1
"+r"(pix) // %2
:
: "cc", "memory", "q0", "q8", "q9", "q10", "q11"
);
}
void ARGBToYRow_NEON(const uint8* src_argb, uint8* dst_y, int pix) {
asm volatile (
"vmov.u8 d24, #13 \n" // B * 0.1016 coefficient
"vmov.u8 d25, #65 \n" // G * 0.5078 coefficient
"vmov.u8 d26, #33 \n" // R * 0.2578 coefficient
"vmov.u8 d27, #16 \n" // Add 16 constant
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d1, d2, d3}, [%0]! \n" // load 8 ARGB pixels.
"subs %2, %2, #8 \n" // 8 processed per loop.
"vmull.u8 q2, d0, d24 \n" // B
"vmlal.u8 q2, d1, d25 \n" // G
"vmlal.u8 q2, d2, d26 \n" // R
"vqrshrun.s16 d0, q2, #7 \n" // 16 bit to 8 bit Y
"vqadd.u8 d0, d27 \n"
"vst1.8 {d0}, [%1]! \n" // store 8 pixels Y.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_y), // %1
"+r"(pix) // %2
:
: "cc", "memory", "q0", "q1", "q2", "q12", "q13"
);
}
void ARGBToYJRow_NEON(const uint8* src_argb, uint8* dst_y, int pix) {
asm volatile (
"vmov.u8 d24, #15 \n" // B * 0.11400 coefficient
"vmov.u8 d25, #75 \n" // G * 0.58700 coefficient
"vmov.u8 d26, #38 \n" // R * 0.29900 coefficient
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d1, d2, d3}, [%0]! \n" // load 8 ARGB pixels.
"subs %2, %2, #8 \n" // 8 processed per loop.
"vmull.u8 q2, d0, d24 \n" // B
"vmlal.u8 q2, d1, d25 \n" // G
"vmlal.u8 q2, d2, d26 \n" // R
"vqrshrun.s16 d0, q2, #7 \n" // 15 bit to 8 bit Y
"vst1.8 {d0}, [%1]! \n" // store 8 pixels Y.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_y), // %1
"+r"(pix) // %2
:
: "cc", "memory", "q0", "q1", "q2", "q12", "q13"
);
}
// 8x1 pixels.
void ARGBToUV444Row_NEON(const uint8* src_argb, uint8* dst_u, uint8* dst_v,
int pix) {
asm volatile (
"vmov.u8 d24, #112 \n" // UB / VR 0.875 coefficient
"vmov.u8 d25, #74 \n" // UG -0.5781 coefficient
"vmov.u8 d26, #38 \n" // UR -0.2969 coefficient
"vmov.u8 d27, #18 \n" // VB -0.1406 coefficient
"vmov.u8 d28, #94 \n" // VG -0.7344 coefficient
"vmov.u16 q15, #0x8080 \n" // 128.5
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d1, d2, d3}, [%0]! \n" // load 8 ARGB pixels.
"subs %3, %3, #8 \n" // 8 processed per loop.
"vmull.u8 q2, d0, d24 \n" // B
"vmlsl.u8 q2, d1, d25 \n" // G
"vmlsl.u8 q2, d2, d26 \n" // R
"vadd.u16 q2, q2, q15 \n" // +128 -> unsigned
"vmull.u8 q3, d2, d24 \n" // R
"vmlsl.u8 q3, d1, d28 \n" // G
"vmlsl.u8 q3, d0, d27 \n" // B
"vadd.u16 q3, q3, q15 \n" // +128 -> unsigned
"vqshrn.u16 d0, q2, #8 \n" // 16 bit to 8 bit U
"vqshrn.u16 d1, q3, #8 \n" // 16 bit to 8 bit V
"vst1.8 {d0}, [%1]! \n" // store 8 pixels U.
"vst1.8 {d1}, [%2]! \n" // store 8 pixels V.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_u), // %1
"+r"(dst_v), // %2
"+r"(pix) // %3
:
: "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q12", "q13", "q14", "q15"
);
}
// 16x1 pixels -> 8x1. pix is number of argb pixels. e.g. 16.
void ARGBToUV422Row_NEON(const uint8* src_argb, uint8* dst_u, uint8* dst_v,
int pix) {
asm volatile (
"vmov.s16 q10, #112 / 2 \n" // UB / VR 0.875 coefficient
"vmov.s16 q11, #74 / 2 \n" // UG -0.5781 coefficient
"vmov.s16 q12, #38 / 2 \n" // UR -0.2969 coefficient
"vmov.s16 q13, #18 / 2 \n" // VB -0.1406 coefficient
"vmov.s16 q14, #94 / 2 \n" // VG -0.7344 coefficient
"vmov.u16 q15, #0x8080 \n" // 128.5
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d2, d4, d6}, [%0]! \n" // load 8 ARGB pixels.
"vld4.8 {d1, d3, d5, d7}, [%0]! \n" // load next 8 ARGB pixels.
"vpaddl.u8 q0, q0 \n" // B 16 bytes -> 8 shorts.
"vpaddl.u8 q1, q1 \n" // G 16 bytes -> 8 shorts.
"vpaddl.u8 q2, q2 \n" // R 16 bytes -> 8 shorts.
"subs %3, %3, #16 \n" // 16 processed per loop.
"vmul.s16 q8, q0, q10 \n" // B
"vmls.s16 q8, q1, q11 \n" // G
"vmls.s16 q8, q2, q12 \n" // R
"vadd.u16 q8, q8, q15 \n" // +128 -> unsigned
"vmul.s16 q9, q2, q10 \n" // R
"vmls.s16 q9, q1, q14 \n" // G
"vmls.s16 q9, q0, q13 \n" // B
"vadd.u16 q9, q9, q15 \n" // +128 -> unsigned
"vqshrn.u16 d0, q8, #8 \n" // 16 bit to 8 bit U
"vqshrn.u16 d1, q9, #8 \n" // 16 bit to 8 bit V
"vst1.8 {d0}, [%1]! \n" // store 8 pixels U.
"vst1.8 {d1}, [%2]! \n" // store 8 pixels V.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_u), // %1
"+r"(dst_v), // %2
"+r"(pix) // %3
:
: "cc", "memory", "q0", "q1", "q2", "q3",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
// 32x1 pixels -> 8x1. pix is number of argb pixels. e.g. 32.
void ARGBToUV411Row_NEON(const uint8* src_argb, uint8* dst_u, uint8* dst_v,
int pix) {
asm volatile (
"vmov.s16 q10, #112 / 2 \n" // UB / VR 0.875 coefficient
"vmov.s16 q11, #74 / 2 \n" // UG -0.5781 coefficient
"vmov.s16 q12, #38 / 2 \n" // UR -0.2969 coefficient
"vmov.s16 q13, #18 / 2 \n" // VB -0.1406 coefficient
"vmov.s16 q14, #94 / 2 \n" // VG -0.7344 coefficient
"vmov.u16 q15, #0x8080 \n" // 128.5
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d2, d4, d6}, [%0]! \n" // load 8 ARGB pixels.
"vld4.8 {d1, d3, d5, d7}, [%0]! \n" // load next 8 ARGB pixels.
"vpaddl.u8 q0, q0 \n" // B 16 bytes -> 8 shorts.
"vpaddl.u8 q1, q1 \n" // G 16 bytes -> 8 shorts.
"vpaddl.u8 q2, q2 \n" // R 16 bytes -> 8 shorts.
"vld4.8 {d8, d10, d12, d14}, [%0]! \n" // load 8 more ARGB pixels.
"vld4.8 {d9, d11, d13, d15}, [%0]! \n" // load last 8 ARGB pixels.
"vpaddl.u8 q4, q4 \n" // B 16 bytes -> 8 shorts.
"vpaddl.u8 q5, q5 \n" // G 16 bytes -> 8 shorts.
"vpaddl.u8 q6, q6 \n" // R 16 bytes -> 8 shorts.
"vpadd.u16 d0, d0, d1 \n" // B 16 shorts -> 8 shorts.
"vpadd.u16 d1, d8, d9 \n" // B
"vpadd.u16 d2, d2, d3 \n" // G 16 shorts -> 8 shorts.
"vpadd.u16 d3, d10, d11 \n" // G
"vpadd.u16 d4, d4, d5 \n" // R 16 shorts -> 8 shorts.
"vpadd.u16 d5, d12, d13 \n" // R
"vrshr.u16 q0, q0, #1 \n" // 2x average
"vrshr.u16 q1, q1, #1 \n"
"vrshr.u16 q2, q2, #1 \n"
"subs %3, %3, #32 \n" // 32 processed per loop.
"vmul.s16 q8, q0, q10 \n" // B
"vmls.s16 q8, q1, q11 \n" // G
"vmls.s16 q8, q2, q12 \n" // R
"vadd.u16 q8, q8, q15 \n" // +128 -> unsigned
"vmul.s16 q9, q2, q10 \n" // R
"vmls.s16 q9, q1, q14 \n" // G
"vmls.s16 q9, q0, q13 \n" // B
"vadd.u16 q9, q9, q15 \n" // +128 -> unsigned
"vqshrn.u16 d0, q8, #8 \n" // 16 bit to 8 bit U
"vqshrn.u16 d1, q9, #8 \n" // 16 bit to 8 bit V
"vst1.8 {d0}, [%1]! \n" // store 8 pixels U.
"vst1.8 {d1}, [%2]! \n" // store 8 pixels V.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_u), // %1
"+r"(dst_v), // %2
"+r"(pix) // %3
:
: "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
// 16x2 pixels -> 8x1. pix is number of argb pixels. e.g. 16.
#define RGBTOUV(QB, QG, QR) \
"vmul.s16 q8, " #QB ", q10 \n" /* B */ \
"vmls.s16 q8, " #QG ", q11 \n" /* G */ \
"vmls.s16 q8, " #QR ", q12 \n" /* R */ \
"vadd.u16 q8, q8, q15 \n" /* +128 -> unsigned */ \
"vmul.s16 q9, " #QR ", q10 \n" /* R */ \
"vmls.s16 q9, " #QG ", q14 \n" /* G */ \
"vmls.s16 q9, " #QB ", q13 \n" /* B */ \
"vadd.u16 q9, q9, q15 \n" /* +128 -> unsigned */ \
"vqshrn.u16 d0, q8, #8 \n" /* 16 bit to 8 bit U */ \
"vqshrn.u16 d1, q9, #8 \n" /* 16 bit to 8 bit V */
// TODO(fbarchard): Consider vhadd vertical, then vpaddl horizontal, avoid shr.
void ARGBToUVRow_NEON(const uint8* src_argb, int src_stride_argb,
uint8* dst_u, uint8* dst_v, int pix) {
asm volatile (
"add %1, %0, %1 \n" // src_stride + src_argb
"vmov.s16 q10, #112 / 2 \n" // UB / VR 0.875 coefficient
"vmov.s16 q11, #74 / 2 \n" // UG -0.5781 coefficient
"vmov.s16 q12, #38 / 2 \n" // UR -0.2969 coefficient
"vmov.s16 q13, #18 / 2 \n" // VB -0.1406 coefficient
"vmov.s16 q14, #94 / 2 \n" // VG -0.7344 coefficient
"vmov.u16 q15, #0x8080 \n" // 128.5
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d2, d4, d6}, [%0]! \n" // load 8 ARGB pixels.
"vld4.8 {d1, d3, d5, d7}, [%0]! \n" // load next 8 ARGB pixels.
"vpaddl.u8 q0, q0 \n" // B 16 bytes -> 8 shorts.
"vpaddl.u8 q1, q1 \n" // G 16 bytes -> 8 shorts.
"vpaddl.u8 q2, q2 \n" // R 16 bytes -> 8 shorts.
"vld4.8 {d8, d10, d12, d14}, [%1]! \n" // load 8 more ARGB pixels.
"vld4.8 {d9, d11, d13, d15}, [%1]! \n" // load last 8 ARGB pixels.
"vpadal.u8 q0, q4 \n" // B 16 bytes -> 8 shorts.
"vpadal.u8 q1, q5 \n" // G 16 bytes -> 8 shorts.
"vpadal.u8 q2, q6 \n" // R 16 bytes -> 8 shorts.
"vrshr.u16 q0, q0, #1 \n" // 2x average
"vrshr.u16 q1, q1, #1 \n"
"vrshr.u16 q2, q2, #1 \n"
"subs %4, %4, #16 \n" // 32 processed per loop.
RGBTOUV(q0, q1, q2)
"vst1.8 {d0}, [%2]! \n" // store 8 pixels U.
"vst1.8 {d1}, [%3]! \n" // store 8 pixels V.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(src_stride_argb), // %1
"+r"(dst_u), // %2
"+r"(dst_v), // %3
"+r"(pix) // %4
:
: "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
// TODO(fbarchard): Subsample match C code.
void ARGBToUVJRow_NEON(const uint8* src_argb, int src_stride_argb,
uint8* dst_u, uint8* dst_v, int pix) {
asm volatile (
"add %1, %0, %1 \n" // src_stride + src_argb
"vmov.s16 q10, #127 / 2 \n" // UB / VR 0.500 coefficient
"vmov.s16 q11, #84 / 2 \n" // UG -0.33126 coefficient
"vmov.s16 q12, #43 / 2 \n" // UR -0.16874 coefficient
"vmov.s16 q13, #20 / 2 \n" // VB -0.08131 coefficient
"vmov.s16 q14, #107 / 2 \n" // VG -0.41869 coefficient
"vmov.u16 q15, #0x8080 \n" // 128.5
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d2, d4, d6}, [%0]! \n" // load 8 ARGB pixels.
"vld4.8 {d1, d3, d5, d7}, [%0]! \n" // load next 8 ARGB pixels.
"vpaddl.u8 q0, q0 \n" // B 16 bytes -> 8 shorts.
"vpaddl.u8 q1, q1 \n" // G 16 bytes -> 8 shorts.
"vpaddl.u8 q2, q2 \n" // R 16 bytes -> 8 shorts.
"vld4.8 {d8, d10, d12, d14}, [%1]! \n" // load 8 more ARGB pixels.
"vld4.8 {d9, d11, d13, d15}, [%1]! \n" // load last 8 ARGB pixels.
"vpadal.u8 q0, q4 \n" // B 16 bytes -> 8 shorts.
"vpadal.u8 q1, q5 \n" // G 16 bytes -> 8 shorts.
"vpadal.u8 q2, q6 \n" // R 16 bytes -> 8 shorts.
"vrshr.u16 q0, q0, #1 \n" // 2x average
"vrshr.u16 q1, q1, #1 \n"
"vrshr.u16 q2, q2, #1 \n"
"subs %4, %4, #16 \n" // 32 processed per loop.
RGBTOUV(q0, q1, q2)
"vst1.8 {d0}, [%2]! \n" // store 8 pixels U.
"vst1.8 {d1}, [%3]! \n" // store 8 pixels V.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(src_stride_argb), // %1
"+r"(dst_u), // %2
"+r"(dst_v), // %3
"+r"(pix) // %4
:
: "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void BGRAToUVRow_NEON(const uint8* src_bgra, int src_stride_bgra,
uint8* dst_u, uint8* dst_v, int pix) {
asm volatile (
"add %1, %0, %1 \n" // src_stride + src_bgra
"vmov.s16 q10, #112 / 2 \n" // UB / VR 0.875 coefficient
"vmov.s16 q11, #74 / 2 \n" // UG -0.5781 coefficient
"vmov.s16 q12, #38 / 2 \n" // UR -0.2969 coefficient
"vmov.s16 q13, #18 / 2 \n" // VB -0.1406 coefficient
"vmov.s16 q14, #94 / 2 \n" // VG -0.7344 coefficient
"vmov.u16 q15, #0x8080 \n" // 128.5
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d2, d4, d6}, [%0]! \n" // load 8 BGRA pixels.
"vld4.8 {d1, d3, d5, d7}, [%0]! \n" // load next 8 BGRA pixels.
"vpaddl.u8 q3, q3 \n" // B 16 bytes -> 8 shorts.
"vpaddl.u8 q2, q2 \n" // G 16 bytes -> 8 shorts.
"vpaddl.u8 q1, q1 \n" // R 16 bytes -> 8 shorts.
"vld4.8 {d8, d10, d12, d14}, [%1]! \n" // load 8 more BGRA pixels.
"vld4.8 {d9, d11, d13, d15}, [%1]! \n" // load last 8 BGRA pixels.
"vpadal.u8 q3, q7 \n" // B 16 bytes -> 8 shorts.
"vpadal.u8 q2, q6 \n" // G 16 bytes -> 8 shorts.
"vpadal.u8 q1, q5 \n" // R 16 bytes -> 8 shorts.
"vrshr.u16 q1, q1, #1 \n" // 2x average
"vrshr.u16 q2, q2, #1 \n"
"vrshr.u16 q3, q3, #1 \n"
"subs %4, %4, #16 \n" // 32 processed per loop.
RGBTOUV(q3, q2, q1)
"vst1.8 {d0}, [%2]! \n" // store 8 pixels U.
"vst1.8 {d1}, [%3]! \n" // store 8 pixels V.
"bgt 1b \n"
: "+r"(src_bgra), // %0
"+r"(src_stride_bgra), // %1
"+r"(dst_u), // %2
"+r"(dst_v), // %3
"+r"(pix) // %4
:
: "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void ABGRToUVRow_NEON(const uint8* src_abgr, int src_stride_abgr,
uint8* dst_u, uint8* dst_v, int pix) {
asm volatile (
"add %1, %0, %1 \n" // src_stride + src_abgr
"vmov.s16 q10, #112 / 2 \n" // UB / VR 0.875 coefficient
"vmov.s16 q11, #74 / 2 \n" // UG -0.5781 coefficient
"vmov.s16 q12, #38 / 2 \n" // UR -0.2969 coefficient
"vmov.s16 q13, #18 / 2 \n" // VB -0.1406 coefficient
"vmov.s16 q14, #94 / 2 \n" // VG -0.7344 coefficient
"vmov.u16 q15, #0x8080 \n" // 128.5
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d2, d4, d6}, [%0]! \n" // load 8 ABGR pixels.
"vld4.8 {d1, d3, d5, d7}, [%0]! \n" // load next 8 ABGR pixels.
"vpaddl.u8 q2, q2 \n" // B 16 bytes -> 8 shorts.
"vpaddl.u8 q1, q1 \n" // G 16 bytes -> 8 shorts.
"vpaddl.u8 q0, q0 \n" // R 16 bytes -> 8 shorts.
"vld4.8 {d8, d10, d12, d14}, [%1]! \n" // load 8 more ABGR pixels.
"vld4.8 {d9, d11, d13, d15}, [%1]! \n" // load last 8 ABGR pixels.
"vpadal.u8 q2, q6 \n" // B 16 bytes -> 8 shorts.
"vpadal.u8 q1, q5 \n" // G 16 bytes -> 8 shorts.
"vpadal.u8 q0, q4 \n" // R 16 bytes -> 8 shorts.
"vrshr.u16 q0, q0, #1 \n" // 2x average
"vrshr.u16 q1, q1, #1 \n"
"vrshr.u16 q2, q2, #1 \n"
"subs %4, %4, #16 \n" // 32 processed per loop.
RGBTOUV(q2, q1, q0)
"vst1.8 {d0}, [%2]! \n" // store 8 pixels U.
"vst1.8 {d1}, [%3]! \n" // store 8 pixels V.
"bgt 1b \n"
: "+r"(src_abgr), // %0
"+r"(src_stride_abgr), // %1
"+r"(dst_u), // %2
"+r"(dst_v), // %3
"+r"(pix) // %4
:
: "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void RGBAToUVRow_NEON(const uint8* src_rgba, int src_stride_rgba,
uint8* dst_u, uint8* dst_v, int pix) {
asm volatile (
"add %1, %0, %1 \n" // src_stride + src_rgba
"vmov.s16 q10, #112 / 2 \n" // UB / VR 0.875 coefficient
"vmov.s16 q11, #74 / 2 \n" // UG -0.5781 coefficient
"vmov.s16 q12, #38 / 2 \n" // UR -0.2969 coefficient
"vmov.s16 q13, #18 / 2 \n" // VB -0.1406 coefficient
"vmov.s16 q14, #94 / 2 \n" // VG -0.7344 coefficient
"vmov.u16 q15, #0x8080 \n" // 128.5
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d2, d4, d6}, [%0]! \n" // load 8 RGBA pixels.
"vld4.8 {d1, d3, d5, d7}, [%0]! \n" // load next 8 RGBA pixels.
"vpaddl.u8 q0, q1 \n" // B 16 bytes -> 8 shorts.
"vpaddl.u8 q1, q2 \n" // G 16 bytes -> 8 shorts.
"vpaddl.u8 q2, q3 \n" // R 16 bytes -> 8 shorts.
"vld4.8 {d8, d10, d12, d14}, [%1]! \n" // load 8 more RGBA pixels.
"vld4.8 {d9, d11, d13, d15}, [%1]! \n" // load last 8 RGBA pixels.
"vpadal.u8 q0, q5 \n" // B 16 bytes -> 8 shorts.
"vpadal.u8 q1, q6 \n" // G 16 bytes -> 8 shorts.
"vpadal.u8 q2, q7 \n" // R 16 bytes -> 8 shorts.
"vrshr.u16 q0, q0, #1 \n" // 2x average
"vrshr.u16 q1, q1, #1 \n"
"vrshr.u16 q2, q2, #1 \n"
"subs %4, %4, #16 \n" // 32 processed per loop.
RGBTOUV(q0, q1, q2)
"vst1.8 {d0}, [%2]! \n" // store 8 pixels U.
"vst1.8 {d1}, [%3]! \n" // store 8 pixels V.
"bgt 1b \n"
: "+r"(src_rgba), // %0
"+r"(src_stride_rgba), // %1
"+r"(dst_u), // %2
"+r"(dst_v), // %3
"+r"(pix) // %4
:
: "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void RGB24ToUVRow_NEON(const uint8* src_rgb24, int src_stride_rgb24,
uint8* dst_u, uint8* dst_v, int pix) {
asm volatile (
"add %1, %0, %1 \n" // src_stride + src_rgb24
"vmov.s16 q10, #112 / 2 \n" // UB / VR 0.875 coefficient
"vmov.s16 q11, #74 / 2 \n" // UG -0.5781 coefficient
"vmov.s16 q12, #38 / 2 \n" // UR -0.2969 coefficient
"vmov.s16 q13, #18 / 2 \n" // VB -0.1406 coefficient
"vmov.s16 q14, #94 / 2 \n" // VG -0.7344 coefficient
"vmov.u16 q15, #0x8080 \n" // 128.5
".p2align 2 \n"
"1: \n"
"vld3.8 {d0, d2, d4}, [%0]! \n" // load 8 RGB24 pixels.
"vld3.8 {d1, d3, d5}, [%0]! \n" // load next 8 RGB24 pixels.
"vpaddl.u8 q0, q0 \n" // B 16 bytes -> 8 shorts.
"vpaddl.u8 q1, q1 \n" // G 16 bytes -> 8 shorts.
"vpaddl.u8 q2, q2 \n" // R 16 bytes -> 8 shorts.
"vld3.8 {d8, d10, d12}, [%1]! \n" // load 8 more RGB24 pixels.
"vld3.8 {d9, d11, d13}, [%1]! \n" // load last 8 RGB24 pixels.
"vpadal.u8 q0, q4 \n" // B 16 bytes -> 8 shorts.
"vpadal.u8 q1, q5 \n" // G 16 bytes -> 8 shorts.
"vpadal.u8 q2, q6 \n" // R 16 bytes -> 8 shorts.
"vrshr.u16 q0, q0, #1 \n" // 2x average
"vrshr.u16 q1, q1, #1 \n"
"vrshr.u16 q2, q2, #1 \n"
"subs %4, %4, #16 \n" // 32 processed per loop.
RGBTOUV(q0, q1, q2)
"vst1.8 {d0}, [%2]! \n" // store 8 pixels U.
"vst1.8 {d1}, [%3]! \n" // store 8 pixels V.
"bgt 1b \n"
: "+r"(src_rgb24), // %0
"+r"(src_stride_rgb24), // %1
"+r"(dst_u), // %2
"+r"(dst_v), // %3
"+r"(pix) // %4
:
: "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void RAWToUVRow_NEON(const uint8* src_raw, int src_stride_raw,
uint8* dst_u, uint8* dst_v, int pix) {
asm volatile (
"add %1, %0, %1 \n" // src_stride + src_raw
"vmov.s16 q10, #112 / 2 \n" // UB / VR 0.875 coefficient
"vmov.s16 q11, #74 / 2 \n" // UG -0.5781 coefficient
"vmov.s16 q12, #38 / 2 \n" // UR -0.2969 coefficient
"vmov.s16 q13, #18 / 2 \n" // VB -0.1406 coefficient
"vmov.s16 q14, #94 / 2 \n" // VG -0.7344 coefficient
"vmov.u16 q15, #0x8080 \n" // 128.5
".p2align 2 \n"
"1: \n"
"vld3.8 {d0, d2, d4}, [%0]! \n" // load 8 RAW pixels.
"vld3.8 {d1, d3, d5}, [%0]! \n" // load next 8 RAW pixels.
"vpaddl.u8 q2, q2 \n" // B 16 bytes -> 8 shorts.
"vpaddl.u8 q1, q1 \n" // G 16 bytes -> 8 shorts.
"vpaddl.u8 q0, q0 \n" // R 16 bytes -> 8 shorts.
"vld3.8 {d8, d10, d12}, [%1]! \n" // load 8 more RAW pixels.
"vld3.8 {d9, d11, d13}, [%1]! \n" // load last 8 RAW pixels.
"vpadal.u8 q2, q6 \n" // B 16 bytes -> 8 shorts.
"vpadal.u8 q1, q5 \n" // G 16 bytes -> 8 shorts.
"vpadal.u8 q0, q4 \n" // R 16 bytes -> 8 shorts.
"vrshr.u16 q0, q0, #1 \n" // 2x average
"vrshr.u16 q1, q1, #1 \n"
"vrshr.u16 q2, q2, #1 \n"
"subs %4, %4, #16 \n" // 32 processed per loop.
RGBTOUV(q2, q1, q0)
"vst1.8 {d0}, [%2]! \n" // store 8 pixels U.
"vst1.8 {d1}, [%3]! \n" // store 8 pixels V.
"bgt 1b \n"
: "+r"(src_raw), // %0
"+r"(src_stride_raw), // %1
"+r"(dst_u), // %2
"+r"(dst_v), // %3
"+r"(pix) // %4
:
: "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
// 16x2 pixels -> 8x1. pix is number of argb pixels. e.g. 16.
void RGB565ToUVRow_NEON(const uint8* src_rgb565, int src_stride_rgb565,
uint8* dst_u, uint8* dst_v, int pix) {
asm volatile (
"add %1, %0, %1 \n" // src_stride + src_argb
"vmov.s16 q10, #112 / 2 \n" // UB / VR 0.875 coefficient
"vmov.s16 q11, #74 / 2 \n" // UG -0.5781 coefficient
"vmov.s16 q12, #38 / 2 \n" // UR -0.2969 coefficient
"vmov.s16 q13, #18 / 2 \n" // VB -0.1406 coefficient
"vmov.s16 q14, #94 / 2 \n" // VG -0.7344 coefficient
"vmov.u16 q15, #0x8080 \n" // 128.5
".p2align 2 \n"
"1: \n"
"vld1.8 {q0}, [%0]! \n" // load 8 RGB565 pixels.
RGB565TOARGB
"vpaddl.u8 d8, d0 \n" // B 8 bytes -> 4 shorts.
"vpaddl.u8 d10, d1 \n" // G 8 bytes -> 4 shorts.
"vpaddl.u8 d12, d2 \n" // R 8 bytes -> 4 shorts.
"vld1.8 {q0}, [%0]! \n" // next 8 RGB565 pixels.
RGB565TOARGB
"vpaddl.u8 d9, d0 \n" // B 8 bytes -> 4 shorts.
"vpaddl.u8 d11, d1 \n" // G 8 bytes -> 4 shorts.
"vpaddl.u8 d13, d2 \n" // R 8 bytes -> 4 shorts.
"vld1.8 {q0}, [%1]! \n" // load 8 RGB565 pixels.
RGB565TOARGB
"vpadal.u8 d8, d0 \n" // B 8 bytes -> 4 shorts.
"vpadal.u8 d10, d1 \n" // G 8 bytes -> 4 shorts.
"vpadal.u8 d12, d2 \n" // R 8 bytes -> 4 shorts.
"vld1.8 {q0}, [%1]! \n" // next 8 RGB565 pixels.
RGB565TOARGB
"vpadal.u8 d9, d0 \n" // B 8 bytes -> 4 shorts.
"vpadal.u8 d11, d1 \n" // G 8 bytes -> 4 shorts.
"vpadal.u8 d13, d2 \n" // R 8 bytes -> 4 shorts.
"vrshr.u16 q4, q4, #1 \n" // 2x average
"vrshr.u16 q5, q5, #1 \n"
"vrshr.u16 q6, q6, #1 \n"
"subs %4, %4, #16 \n" // 16 processed per loop.
"vmul.s16 q8, q4, q10 \n" // B
"vmls.s16 q8, q5, q11 \n" // G
"vmls.s16 q8, q6, q12 \n" // R
"vadd.u16 q8, q8, q15 \n" // +128 -> unsigned
"vmul.s16 q9, q6, q10 \n" // R
"vmls.s16 q9, q5, q14 \n" // G
"vmls.s16 q9, q4, q13 \n" // B
"vadd.u16 q9, q9, q15 \n" // +128 -> unsigned
"vqshrn.u16 d0, q8, #8 \n" // 16 bit to 8 bit U
"vqshrn.u16 d1, q9, #8 \n" // 16 bit to 8 bit V
"vst1.8 {d0}, [%2]! \n" // store 8 pixels U.
"vst1.8 {d1}, [%3]! \n" // store 8 pixels V.
"bgt 1b \n"
: "+r"(src_rgb565), // %0
"+r"(src_stride_rgb565), // %1
"+r"(dst_u), // %2
"+r"(dst_v), // %3
"+r"(pix) // %4
:
: "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
// 16x2 pixels -> 8x1. pix is number of argb pixels. e.g. 16.
void ARGB1555ToUVRow_NEON(const uint8* src_argb1555, int src_stride_argb1555,
uint8* dst_u, uint8* dst_v, int pix) {
asm volatile (
"add %1, %0, %1 \n" // src_stride + src_argb
"vmov.s16 q10, #112 / 2 \n" // UB / VR 0.875 coefficient
"vmov.s16 q11, #74 / 2 \n" // UG -0.5781 coefficient
"vmov.s16 q12, #38 / 2 \n" // UR -0.2969 coefficient
"vmov.s16 q13, #18 / 2 \n" // VB -0.1406 coefficient
"vmov.s16 q14, #94 / 2 \n" // VG -0.7344 coefficient
"vmov.u16 q15, #0x8080 \n" // 128.5
".p2align 2 \n"
"1: \n"
"vld1.8 {q0}, [%0]! \n" // load 8 ARGB1555 pixels.
RGB555TOARGB
"vpaddl.u8 d8, d0 \n" // B 8 bytes -> 4 shorts.
"vpaddl.u8 d10, d1 \n" // G 8 bytes -> 4 shorts.
"vpaddl.u8 d12, d2 \n" // R 8 bytes -> 4 shorts.
"vld1.8 {q0}, [%0]! \n" // next 8 ARGB1555 pixels.
RGB555TOARGB
"vpaddl.u8 d9, d0 \n" // B 8 bytes -> 4 shorts.
"vpaddl.u8 d11, d1 \n" // G 8 bytes -> 4 shorts.
"vpaddl.u8 d13, d2 \n" // R 8 bytes -> 4 shorts.
"vld1.8 {q0}, [%1]! \n" // load 8 ARGB1555 pixels.
RGB555TOARGB
"vpadal.u8 d8, d0 \n" // B 8 bytes -> 4 shorts.
"vpadal.u8 d10, d1 \n" // G 8 bytes -> 4 shorts.
"vpadal.u8 d12, d2 \n" // R 8 bytes -> 4 shorts.
"vld1.8 {q0}, [%1]! \n" // next 8 ARGB1555 pixels.
RGB555TOARGB
"vpadal.u8 d9, d0 \n" // B 8 bytes -> 4 shorts.
"vpadal.u8 d11, d1 \n" // G 8 bytes -> 4 shorts.
"vpadal.u8 d13, d2 \n" // R 8 bytes -> 4 shorts.
"vrshr.u16 q4, q4, #1 \n" // 2x average
"vrshr.u16 q5, q5, #1 \n"
"vrshr.u16 q6, q6, #1 \n"
"subs %4, %4, #16 \n" // 16 processed per loop.
"vmul.s16 q8, q4, q10 \n" // B
"vmls.s16 q8, q5, q11 \n" // G
"vmls.s16 q8, q6, q12 \n" // R
"vadd.u16 q8, q8, q15 \n" // +128 -> unsigned
"vmul.s16 q9, q6, q10 \n" // R
"vmls.s16 q9, q5, q14 \n" // G
"vmls.s16 q9, q4, q13 \n" // B
"vadd.u16 q9, q9, q15 \n" // +128 -> unsigned
"vqshrn.u16 d0, q8, #8 \n" // 16 bit to 8 bit U
"vqshrn.u16 d1, q9, #8 \n" // 16 bit to 8 bit V
"vst1.8 {d0}, [%2]! \n" // store 8 pixels U.
"vst1.8 {d1}, [%3]! \n" // store 8 pixels V.
"bgt 1b \n"
: "+r"(src_argb1555), // %0
"+r"(src_stride_argb1555), // %1
"+r"(dst_u), // %2
"+r"(dst_v), // %3
"+r"(pix) // %4
:
: "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
// 16x2 pixels -> 8x1. pix is number of argb pixels. e.g. 16.
void ARGB4444ToUVRow_NEON(const uint8* src_argb4444, int src_stride_argb4444,
uint8* dst_u, uint8* dst_v, int pix) {
asm volatile (
"add %1, %0, %1 \n" // src_stride + src_argb
"vmov.s16 q10, #112 / 2 \n" // UB / VR 0.875 coefficient
"vmov.s16 q11, #74 / 2 \n" // UG -0.5781 coefficient
"vmov.s16 q12, #38 / 2 \n" // UR -0.2969 coefficient
"vmov.s16 q13, #18 / 2 \n" // VB -0.1406 coefficient
"vmov.s16 q14, #94 / 2 \n" // VG -0.7344 coefficient
"vmov.u16 q15, #0x8080 \n" // 128.5
".p2align 2 \n"
"1: \n"
"vld1.8 {q0}, [%0]! \n" // load 8 ARGB4444 pixels.
ARGB4444TOARGB
"vpaddl.u8 d8, d0 \n" // B 8 bytes -> 4 shorts.
"vpaddl.u8 d10, d1 \n" // G 8 bytes -> 4 shorts.
"vpaddl.u8 d12, d2 \n" // R 8 bytes -> 4 shorts.
"vld1.8 {q0}, [%0]! \n" // next 8 ARGB4444 pixels.
ARGB4444TOARGB
"vpaddl.u8 d9, d0 \n" // B 8 bytes -> 4 shorts.
"vpaddl.u8 d11, d1 \n" // G 8 bytes -> 4 shorts.
"vpaddl.u8 d13, d2 \n" // R 8 bytes -> 4 shorts.
"vld1.8 {q0}, [%1]! \n" // load 8 ARGB4444 pixels.
ARGB4444TOARGB
"vpadal.u8 d8, d0 \n" // B 8 bytes -> 4 shorts.
"vpadal.u8 d10, d1 \n" // G 8 bytes -> 4 shorts.
"vpadal.u8 d12, d2 \n" // R 8 bytes -> 4 shorts.
"vld1.8 {q0}, [%1]! \n" // next 8 ARGB4444 pixels.
ARGB4444TOARGB
"vpadal.u8 d9, d0 \n" // B 8 bytes -> 4 shorts.
"vpadal.u8 d11, d1 \n" // G 8 bytes -> 4 shorts.
"vpadal.u8 d13, d2 \n" // R 8 bytes -> 4 shorts.
"vrshr.u16 q4, q4, #1 \n" // 2x average
"vrshr.u16 q5, q5, #1 \n"
"vrshr.u16 q6, q6, #1 \n"
"subs %4, %4, #16 \n" // 16 processed per loop.
"vmul.s16 q8, q4, q10 \n" // B
"vmls.s16 q8, q5, q11 \n" // G
"vmls.s16 q8, q6, q12 \n" // R
"vadd.u16 q8, q8, q15 \n" // +128 -> unsigned
"vmul.s16 q9, q6, q10 \n" // R
"vmls.s16 q9, q5, q14 \n" // G
"vmls.s16 q9, q4, q13 \n" // B
"vadd.u16 q9, q9, q15 \n" // +128 -> unsigned
"vqshrn.u16 d0, q8, #8 \n" // 16 bit to 8 bit U
"vqshrn.u16 d1, q9, #8 \n" // 16 bit to 8 bit V
"vst1.8 {d0}, [%2]! \n" // store 8 pixels U.
"vst1.8 {d1}, [%3]! \n" // store 8 pixels V.
"bgt 1b \n"
: "+r"(src_argb4444), // %0
"+r"(src_stride_argb4444), // %1
"+r"(dst_u), // %2
"+r"(dst_v), // %3
"+r"(pix) // %4
:
: "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7",
"q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
);
}
void RGB565ToYRow_NEON(const uint8* src_rgb565, uint8* dst_y, int pix) {
asm volatile (
"vmov.u8 d24, #13 \n" // B * 0.1016 coefficient
"vmov.u8 d25, #65 \n" // G * 0.5078 coefficient
"vmov.u8 d26, #33 \n" // R * 0.2578 coefficient
"vmov.u8 d27, #16 \n" // Add 16 constant
".p2align 2 \n"
"1: \n"
"vld1.8 {q0}, [%0]! \n" // load 8 RGB565 pixels.
"subs %2, %2, #8 \n" // 8 processed per loop.
RGB565TOARGB
"vmull.u8 q2, d0, d24 \n" // B
"vmlal.u8 q2, d1, d25 \n" // G
"vmlal.u8 q2, d2, d26 \n" // R
"vqrshrun.s16 d0, q2, #7 \n" // 16 bit to 8 bit Y
"vqadd.u8 d0, d27 \n"
"vst1.8 {d0}, [%1]! \n" // store 8 pixels Y.
"bgt 1b \n"
: "+r"(src_rgb565), // %0
"+r"(dst_y), // %1
"+r"(pix) // %2
:
: "cc", "memory", "q0", "q1", "q2", "q3", "q12", "q13"
);
}
void ARGB1555ToYRow_NEON(const uint8* src_argb1555, uint8* dst_y, int pix) {
asm volatile (
"vmov.u8 d24, #13 \n" // B * 0.1016 coefficient
"vmov.u8 d25, #65 \n" // G * 0.5078 coefficient
"vmov.u8 d26, #33 \n" // R * 0.2578 coefficient
"vmov.u8 d27, #16 \n" // Add 16 constant
".p2align 2 \n"
"1: \n"
"vld1.8 {q0}, [%0]! \n" // load 8 ARGB1555 pixels.
"subs %2, %2, #8 \n" // 8 processed per loop.
ARGB1555TOARGB
"vmull.u8 q2, d0, d24 \n" // B
"vmlal.u8 q2, d1, d25 \n" // G
"vmlal.u8 q2, d2, d26 \n" // R
"vqrshrun.s16 d0, q2, #7 \n" // 16 bit to 8 bit Y
"vqadd.u8 d0, d27 \n"
"vst1.8 {d0}, [%1]! \n" // store 8 pixels Y.
"bgt 1b \n"
: "+r"(src_argb1555), // %0
"+r"(dst_y), // %1
"+r"(pix) // %2
:
: "cc", "memory", "q0", "q1", "q2", "q3", "q12", "q13"
);
}
void ARGB4444ToYRow_NEON(const uint8* src_argb4444, uint8* dst_y, int pix) {
asm volatile (
"vmov.u8 d24, #13 \n" // B * 0.1016 coefficient
"vmov.u8 d25, #65 \n" // G * 0.5078 coefficient
"vmov.u8 d26, #33 \n" // R * 0.2578 coefficient
"vmov.u8 d27, #16 \n" // Add 16 constant
".p2align 2 \n"
"1: \n"
"vld1.8 {q0}, [%0]! \n" // load 8 ARGB4444 pixels.
"subs %2, %2, #8 \n" // 8 processed per loop.
ARGB4444TOARGB
"vmull.u8 q2, d0, d24 \n" // B
"vmlal.u8 q2, d1, d25 \n" // G
"vmlal.u8 q2, d2, d26 \n" // R
"vqrshrun.s16 d0, q2, #7 \n" // 16 bit to 8 bit Y
"vqadd.u8 d0, d27 \n"
"vst1.8 {d0}, [%1]! \n" // store 8 pixels Y.
"bgt 1b \n"
: "+r"(src_argb4444), // %0
"+r"(dst_y), // %1
"+r"(pix) // %2
:
: "cc", "memory", "q0", "q1", "q2", "q3", "q12", "q13"
);
}
void BGRAToYRow_NEON(const uint8* src_bgra, uint8* dst_y, int pix) {
asm volatile (
"vmov.u8 d4, #33 \n" // R * 0.2578 coefficient
"vmov.u8 d5, #65 \n" // G * 0.5078 coefficient
"vmov.u8 d6, #13 \n" // B * 0.1016 coefficient
"vmov.u8 d7, #16 \n" // Add 16 constant
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d1, d2, d3}, [%0]! \n" // load 8 pixels of BGRA.
"subs %2, %2, #8 \n" // 8 processed per loop.
"vmull.u8 q8, d1, d4 \n" // R
"vmlal.u8 q8, d2, d5 \n" // G
"vmlal.u8 q8, d3, d6 \n" // B
"vqrshrun.s16 d0, q8, #7 \n" // 16 bit to 8 bit Y
"vqadd.u8 d0, d7 \n"
"vst1.8 {d0}, [%1]! \n" // store 8 pixels Y.
"bgt 1b \n"
: "+r"(src_bgra), // %0
"+r"(dst_y), // %1
"+r"(pix) // %2
:
: "cc", "memory", "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "q8"
);
}
void ABGRToYRow_NEON(const uint8* src_abgr, uint8* dst_y, int pix) {
asm volatile (
"vmov.u8 d4, #33 \n" // R * 0.2578 coefficient
"vmov.u8 d5, #65 \n" // G * 0.5078 coefficient
"vmov.u8 d6, #13 \n" // B * 0.1016 coefficient
"vmov.u8 d7, #16 \n" // Add 16 constant
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d1, d2, d3}, [%0]! \n" // load 8 pixels of ABGR.
"subs %2, %2, #8 \n" // 8 processed per loop.
"vmull.u8 q8, d0, d4 \n" // R
"vmlal.u8 q8, d1, d5 \n" // G
"vmlal.u8 q8, d2, d6 \n" // B
"vqrshrun.s16 d0, q8, #7 \n" // 16 bit to 8 bit Y
"vqadd.u8 d0, d7 \n"
"vst1.8 {d0}, [%1]! \n" // store 8 pixels Y.
"bgt 1b \n"
: "+r"(src_abgr), // %0
"+r"(dst_y), // %1
"+r"(pix) // %2
:
: "cc", "memory", "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "q8"
);
}
void RGBAToYRow_NEON(const uint8* src_rgba, uint8* dst_y, int pix) {
asm volatile (
"vmov.u8 d4, #13 \n" // B * 0.1016 coefficient
"vmov.u8 d5, #65 \n" // G * 0.5078 coefficient
"vmov.u8 d6, #33 \n" // R * 0.2578 coefficient
"vmov.u8 d7, #16 \n" // Add 16 constant
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d1, d2, d3}, [%0]! \n" // load 8 pixels of RGBA.
"subs %2, %2, #8 \n" // 8 processed per loop.
"vmull.u8 q8, d1, d4 \n" // B
"vmlal.u8 q8, d2, d5 \n" // G
"vmlal.u8 q8, d3, d6 \n" // R
"vqrshrun.s16 d0, q8, #7 \n" // 16 bit to 8 bit Y
"vqadd.u8 d0, d7 \n"
"vst1.8 {d0}, [%1]! \n" // store 8 pixels Y.
"bgt 1b \n"
: "+r"(src_rgba), // %0
"+r"(dst_y), // %1
"+r"(pix) // %2
:
: "cc", "memory", "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "q8"
);
}
void RGB24ToYRow_NEON(const uint8* src_rgb24, uint8* dst_y, int pix) {
asm volatile (
"vmov.u8 d4, #13 \n" // B * 0.1016 coefficient
"vmov.u8 d5, #65 \n" // G * 0.5078 coefficient
"vmov.u8 d6, #33 \n" // R * 0.2578 coefficient
"vmov.u8 d7, #16 \n" // Add 16 constant
".p2align 2 \n"
"1: \n"
"vld3.8 {d0, d1, d2}, [%0]! \n" // load 8 pixels of RGB24.
"subs %2, %2, #8 \n" // 8 processed per loop.
"vmull.u8 q8, d0, d4 \n" // B
"vmlal.u8 q8, d1, d5 \n" // G
"vmlal.u8 q8, d2, d6 \n" // R
"vqrshrun.s16 d0, q8, #7 \n" // 16 bit to 8 bit Y
"vqadd.u8 d0, d7 \n"
"vst1.8 {d0}, [%1]! \n" // store 8 pixels Y.
"bgt 1b \n"
: "+r"(src_rgb24), // %0
"+r"(dst_y), // %1
"+r"(pix) // %2
:
: "cc", "memory", "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "q8"
);
}
void RAWToYRow_NEON(const uint8* src_raw, uint8* dst_y, int pix) {
asm volatile (
"vmov.u8 d4, #33 \n" // R * 0.2578 coefficient
"vmov.u8 d5, #65 \n" // G * 0.5078 coefficient
"vmov.u8 d6, #13 \n" // B * 0.1016 coefficient
"vmov.u8 d7, #16 \n" // Add 16 constant
".p2align 2 \n"
"1: \n"
"vld3.8 {d0, d1, d2}, [%0]! \n" // load 8 pixels of RAW.
"subs %2, %2, #8 \n" // 8 processed per loop.
"vmull.u8 q8, d0, d4 \n" // B
"vmlal.u8 q8, d1, d5 \n" // G
"vmlal.u8 q8, d2, d6 \n" // R
"vqrshrun.s16 d0, q8, #7 \n" // 16 bit to 8 bit Y
"vqadd.u8 d0, d7 \n"
"vst1.8 {d0}, [%1]! \n" // store 8 pixels Y.
"bgt 1b \n"
: "+r"(src_raw), // %0
"+r"(dst_y), // %1
"+r"(pix) // %2
:
: "cc", "memory", "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "q8"
);
}
// Bilinear filter 16x2 -> 16x1
void InterpolateRow_NEON(uint8* dst_ptr,
const uint8* src_ptr, ptrdiff_t src_stride,
int dst_width, int source_y_fraction) {
asm volatile (
"cmp %4, #0 \n"
"beq 100f \n"
"add %2, %1 \n"
"cmp %4, #64 \n"
"beq 75f \n"
"cmp %4, #128 \n"
"beq 50f \n"
"cmp %4, #192 \n"
"beq 25f \n"
"vdup.8 d5, %4 \n"
"rsb %4, #256 \n"
"vdup.8 d4, %4 \n"
// General purpose row blend.
"1: \n"
"vld1.8 {q0}, [%1]! \n"
"vld1.8 {q1}, [%2]! \n"
"subs %3, %3, #16 \n"
"vmull.u8 q13, d0, d4 \n"
"vmull.u8 q14, d1, d4 \n"
"vmlal.u8 q13, d2, d5 \n"
"vmlal.u8 q14, d3, d5 \n"
"vrshrn.u16 d0, q13, #8 \n"
"vrshrn.u16 d1, q14, #8 \n"
"vst1.8 {q0}, [%0]! \n"
"bgt 1b \n"
"b 99f \n"
// Blend 25 / 75.
"25: \n"
"vld1.8 {q0}, [%1]! \n"
"vld1.8 {q1}, [%2]! \n"
"subs %3, %3, #16 \n"
"vrhadd.u8 q0, q1 \n"
"vrhadd.u8 q0, q1 \n"
"vst1.8 {q0}, [%0]! \n"
"bgt 25b \n"
"b 99f \n"
// Blend 50 / 50.
"50: \n"
"vld1.8 {q0}, [%1]! \n"
"vld1.8 {q1}, [%2]! \n"
"subs %3, %3, #16 \n"
"vrhadd.u8 q0, q1 \n"
"vst1.8 {q0}, [%0]! \n"
"bgt 50b \n"
"b 99f \n"
// Blend 75 / 25.
"75: \n"
"vld1.8 {q1}, [%1]! \n"
"vld1.8 {q0}, [%2]! \n"
"subs %3, %3, #16 \n"
"vrhadd.u8 q0, q1 \n"
"vrhadd.u8 q0, q1 \n"
"vst1.8 {q0}, [%0]! \n"
"bgt 75b \n"
"b 99f \n"
// Blend 100 / 0 - Copy row unchanged.
"100: \n"
"vld1.8 {q0}, [%1]! \n"
"subs %3, %3, #16 \n"
"vst1.8 {q0}, [%0]! \n"
"bgt 100b \n"
"99: \n"
: "+r"(dst_ptr), // %0
"+r"(src_ptr), // %1
"+r"(src_stride), // %2
"+r"(dst_width), // %3
"+r"(source_y_fraction) // %4
:
: "cc", "memory", "q0", "q1", "d4", "d5", "q13", "q14"
);
}
// dr * (256 - sa) / 256 + sr = dr - dr * sa / 256 + sr
void ARGBBlendRow_NEON(const uint8* src_argb0, const uint8* src_argb1,
uint8* dst_argb, int width) {
asm volatile (
"subs %3, #8 \n"
"blt 89f \n"
// Blend 8 pixels.
"8: \n"
"vld4.8 {d0, d1, d2, d3}, [%0]! \n" // load 8 pixels of ARGB0.
"vld4.8 {d4, d5, d6, d7}, [%1]! \n" // load 8 pixels of ARGB1.
"subs %3, %3, #8 \n" // 8 processed per loop.
"vmull.u8 q10, d4, d3 \n" // db * a
"vmull.u8 q11, d5, d3 \n" // dg * a
"vmull.u8 q12, d6, d3 \n" // dr * a
"vqrshrn.u16 d20, q10, #8 \n" // db >>= 8
"vqrshrn.u16 d21, q11, #8 \n" // dg >>= 8
"vqrshrn.u16 d22, q12, #8 \n" // dr >>= 8
"vqsub.u8 q2, q2, q10 \n" // dbg - dbg * a / 256
"vqsub.u8 d6, d6, d22 \n" // dr - dr * a / 256
"vqadd.u8 q0, q0, q2 \n" // + sbg
"vqadd.u8 d2, d2, d6 \n" // + sr
"vmov.u8 d3, #255 \n" // a = 255
"vst4.8 {d0, d1, d2, d3}, [%2]! \n" // store 8 pixels of ARGB.
"bge 8b \n"
"89: \n"
"adds %3, #8-1 \n"
"blt 99f \n"
// Blend 1 pixels.
"1: \n"
"vld4.8 {d0[0],d1[0],d2[0],d3[0]}, [%0]! \n" // load 1 pixel ARGB0.
"vld4.8 {d4[0],d5[0],d6[0],d7[0]}, [%1]! \n" // load 1 pixel ARGB1.
"subs %3, %3, #1 \n" // 1 processed per loop.
"vmull.u8 q10, d4, d3 \n" // db * a
"vmull.u8 q11, d5, d3 \n" // dg * a
"vmull.u8 q12, d6, d3 \n" // dr * a
"vqrshrn.u16 d20, q10, #8 \n" // db >>= 8
"vqrshrn.u16 d21, q11, #8 \n" // dg >>= 8
"vqrshrn.u16 d22, q12, #8 \n" // dr >>= 8
"vqsub.u8 q2, q2, q10 \n" // dbg - dbg * a / 256
"vqsub.u8 d6, d6, d22 \n" // dr - dr * a / 256
"vqadd.u8 q0, q0, q2 \n" // + sbg
"vqadd.u8 d2, d2, d6 \n" // + sr
"vmov.u8 d3, #255 \n" // a = 255
"vst4.8 {d0[0],d1[0],d2[0],d3[0]}, [%2]! \n" // store 1 pixel.
"bge 1b \n"
"99: \n"
: "+r"(src_argb0), // %0
"+r"(src_argb1), // %1
"+r"(dst_argb), // %2
"+r"(width) // %3
:
: "cc", "memory", "q0", "q1", "q2", "q3", "q10", "q11", "q12"
);
}
// Attenuate 8 pixels at a time.
void ARGBAttenuateRow_NEON(const uint8* src_argb, uint8* dst_argb, int width) {
asm volatile (
// Attenuate 8 pixels.
"1: \n"
"vld4.8 {d0, d1, d2, d3}, [%0]! \n" // load 8 pixels of ARGB.
"subs %2, %2, #8 \n" // 8 processed per loop.
"vmull.u8 q10, d0, d3 \n" // b * a
"vmull.u8 q11, d1, d3 \n" // g * a
"vmull.u8 q12, d2, d3 \n" // r * a
"vqrshrn.u16 d0, q10, #8 \n" // b >>= 8
"vqrshrn.u16 d1, q11, #8 \n" // g >>= 8
"vqrshrn.u16 d2, q12, #8 \n" // r >>= 8
"vst4.8 {d0, d1, d2, d3}, [%1]! \n" // store 8 pixels of ARGB.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_argb), // %1
"+r"(width) // %2
:
: "cc", "memory", "q0", "q1", "q10", "q11", "q12"
);
}
// Quantize 8 ARGB pixels (32 bytes).
// dst = (dst * scale >> 16) * interval_size + interval_offset;
void ARGBQuantizeRow_NEON(uint8* dst_argb, int scale, int interval_size,
int interval_offset, int width) {
asm volatile (
"vdup.u16 q8, %2 \n"
"vshr.u16 q8, q8, #1 \n" // scale >>= 1
"vdup.u16 q9, %3 \n" // interval multiply.
"vdup.u16 q10, %4 \n" // interval add
// 8 pixel loop.
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d2, d4, d6}, [%0] \n" // load 8 pixels of ARGB.
"subs %1, %1, #8 \n" // 8 processed per loop.
"vmovl.u8 q0, d0 \n" // b (0 .. 255)
"vmovl.u8 q1, d2 \n"
"vmovl.u8 q2, d4 \n"
"vqdmulh.s16 q0, q0, q8 \n" // b * scale
"vqdmulh.s16 q1, q1, q8 \n" // g
"vqdmulh.s16 q2, q2, q8 \n" // r
"vmul.u16 q0, q0, q9 \n" // b * interval_size
"vmul.u16 q1, q1, q9 \n" // g
"vmul.u16 q2, q2, q9 \n" // r
"vadd.u16 q0, q0, q10 \n" // b + interval_offset
"vadd.u16 q1, q1, q10 \n" // g
"vadd.u16 q2, q2, q10 \n" // r
"vqmovn.u16 d0, q0 \n"
"vqmovn.u16 d2, q1 \n"
"vqmovn.u16 d4, q2 \n"
"vst4.8 {d0, d2, d4, d6}, [%0]! \n" // store 8 pixels of ARGB.
"bgt 1b \n"
: "+r"(dst_argb), // %0
"+r"(width) // %1
: "r"(scale), // %2
"r"(interval_size), // %3
"r"(interval_offset) // %4
: "cc", "memory", "q0", "q1", "q2", "q3", "q8", "q9", "q10"
);
}
// Shade 8 pixels at a time by specified value.
// NOTE vqrdmulh.s16 q10, q10, d0[0] must use a scaler register from 0 to 8.
// Rounding in vqrdmulh does +1 to high if high bit of low s16 is set.
void ARGBShadeRow_NEON(const uint8* src_argb, uint8* dst_argb, int width,
uint32 value) {
asm volatile (
"vdup.u32 q0, %3 \n" // duplicate scale value.
"vzip.u8 d0, d1 \n" // d0 aarrggbb.
"vshr.u16 q0, q0, #1 \n" // scale / 2.
// 8 pixel loop.
".p2align 2 \n"
"1: \n"
"vld4.8 {d20, d22, d24, d26}, [%0]! \n" // load 8 pixels of ARGB.
"subs %2, %2, #8 \n" // 8 processed per loop.
"vmovl.u8 q10, d20 \n" // b (0 .. 255)
"vmovl.u8 q11, d22 \n"
"vmovl.u8 q12, d24 \n"
"vmovl.u8 q13, d26 \n"
"vqrdmulh.s16 q10, q10, d0[0] \n" // b * scale * 2
"vqrdmulh.s16 q11, q11, d0[1] \n" // g
"vqrdmulh.s16 q12, q12, d0[2] \n" // r
"vqrdmulh.s16 q13, q13, d0[3] \n" // a
"vqmovn.u16 d20, q10 \n"
"vqmovn.u16 d22, q11 \n"
"vqmovn.u16 d24, q12 \n"
"vqmovn.u16 d26, q13 \n"
"vst4.8 {d20, d22, d24, d26}, [%1]! \n" // store 8 pixels of ARGB.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_argb), // %1
"+r"(width) // %2
: "r"(value) // %3
: "cc", "memory", "q0", "q10", "q11", "q12", "q13"
);
}
// Convert 8 ARGB pixels (64 bytes) to 8 Gray ARGB pixels
// Similar to ARGBToYJ but stores ARGB.
// C code is (15 * b + 75 * g + 38 * r + 64) >> 7;
void ARGBGrayRow_NEON(const uint8* src_argb, uint8* dst_argb, int width) {
asm volatile (
"vmov.u8 d24, #15 \n" // B * 0.11400 coefficient
"vmov.u8 d25, #75 \n" // G * 0.58700 coefficient
"vmov.u8 d26, #38 \n" // R * 0.29900 coefficient
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d1, d2, d3}, [%0]! \n" // load 8 ARGB pixels.
"subs %2, %2, #8 \n" // 8 processed per loop.
"vmull.u8 q2, d0, d24 \n" // B
"vmlal.u8 q2, d1, d25 \n" // G
"vmlal.u8 q2, d2, d26 \n" // R
"vqrshrun.s16 d0, q2, #7 \n" // 15 bit to 8 bit B
"vmov d1, d0 \n" // G
"vmov d2, d0 \n" // R
"vst4.8 {d0, d1, d2, d3}, [%1]! \n" // store 8 ARGB pixels.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_argb), // %1
"+r"(width) // %2
:
: "cc", "memory", "q0", "q1", "q2", "q12", "q13"
);
}
// Convert 8 ARGB pixels (32 bytes) to 8 Sepia ARGB pixels.
// b = (r * 35 + g * 68 + b * 17) >> 7
// g = (r * 45 + g * 88 + b * 22) >> 7
// r = (r * 50 + g * 98 + b * 24) >> 7
void ARGBSepiaRow_NEON(uint8* dst_argb, int width) {
asm volatile (
"vmov.u8 d20, #17 \n" // BB coefficient
"vmov.u8 d21, #68 \n" // BG coefficient
"vmov.u8 d22, #35 \n" // BR coefficient
"vmov.u8 d24, #22 \n" // GB coefficient
"vmov.u8 d25, #88 \n" // GG coefficient
"vmov.u8 d26, #45 \n" // GR coefficient
"vmov.u8 d28, #24 \n" // BB coefficient
"vmov.u8 d29, #98 \n" // BG coefficient
"vmov.u8 d30, #50 \n" // BR coefficient
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d1, d2, d3}, [%0] \n" // load 8 ARGB pixels.
"subs %1, %1, #8 \n" // 8 processed per loop.
"vmull.u8 q2, d0, d20 \n" // B to Sepia B
"vmlal.u8 q2, d1, d21 \n" // G
"vmlal.u8 q2, d2, d22 \n" // R
"vmull.u8 q3, d0, d24 \n" // B to Sepia G
"vmlal.u8 q3, d1, d25 \n" // G
"vmlal.u8 q3, d2, d26 \n" // R
"vmull.u8 q8, d0, d28 \n" // B to Sepia R
"vmlal.u8 q8, d1, d29 \n" // G
"vmlal.u8 q8, d2, d30 \n" // R
"vqshrn.u16 d0, q2, #7 \n" // 16 bit to 8 bit B
"vqshrn.u16 d1, q3, #7 \n" // 16 bit to 8 bit G
"vqshrn.u16 d2, q8, #7 \n" // 16 bit to 8 bit R
"vst4.8 {d0, d1, d2, d3}, [%0]! \n" // store 8 ARGB pixels.
"bgt 1b \n"
: "+r"(dst_argb), // %0
"+r"(width) // %1
:
: "cc", "memory", "q0", "q1", "q2", "q3",
"q10", "q11", "q12", "q13", "q14", "q15"
);
}
// Tranform 8 ARGB pixels (32 bytes) with color matrix.
// TODO(fbarchard): Was same as Sepia except matrix is provided. This function
// needs to saturate. Consider doing a non-saturating version.
void ARGBColorMatrixRow_NEON(const uint8* src_argb, uint8* dst_argb,
const int8* matrix_argb, int width) {
asm volatile (
"vld1.8 {q2}, [%3] \n" // load 3 ARGB vectors.
"vmovl.s8 q0, d4 \n" // B,G coefficients s16.
"vmovl.s8 q1, d5 \n" // R,A coefficients s16.
".p2align 2 \n"
"1: \n"
"vld4.8 {d16, d18, d20, d22}, [%0]! \n" // load 8 ARGB pixels.
"subs %2, %2, #8 \n" // 8 processed per loop.
"vmovl.u8 q8, d16 \n" // b (0 .. 255) 16 bit
"vmovl.u8 q9, d18 \n" // g
"vmovl.u8 q10, d20 \n" // r
"vmovl.u8 q15, d22 \n" // a
"vmul.s16 q12, q8, d0[0] \n" // B = B * Matrix B
"vmul.s16 q13, q8, d1[0] \n" // G = B * Matrix G
"vmul.s16 q14, q8, d2[0] \n" // R = B * Matrix R
"vmul.s16 q15, q8, d3[0] \n" // A = B * Matrix A
"vmul.s16 q4, q9, d0[1] \n" // B += G * Matrix B
"vmul.s16 q5, q9, d1[1] \n" // G += G * Matrix G
"vmul.s16 q6, q9, d2[1] \n" // R += G * Matrix R
"vmul.s16 q7, q9, d3[1] \n" // A += G * Matrix A
"vqadd.s16 q12, q12, q4 \n" // Accumulate B
"vqadd.s16 q13, q13, q5 \n" // Accumulate G
"vqadd.s16 q14, q14, q6 \n" // Accumulate R
"vqadd.s16 q15, q15, q7 \n" // Accumulate A
"vmul.s16 q4, q10, d0[2] \n" // B += R * Matrix B
"vmul.s16 q5, q10, d1[2] \n" // G += R * Matrix G
"vmul.s16 q6, q10, d2[2] \n" // R += R * Matrix R
"vmul.s16 q7, q10, d3[2] \n" // A += R * Matrix A
"vqadd.s16 q12, q12, q4 \n" // Accumulate B
"vqadd.s16 q13, q13, q5 \n" // Accumulate G
"vqadd.s16 q14, q14, q6 \n" // Accumulate R
"vqadd.s16 q15, q15, q7 \n" // Accumulate A
"vmul.s16 q4, q15, d0[3] \n" // B += A * Matrix B
"vmul.s16 q5, q15, d1[3] \n" // G += A * Matrix G
"vmul.s16 q6, q15, d2[3] \n" // R += A * Matrix R
"vmul.s16 q7, q15, d3[3] \n" // A += A * Matrix A
"vqadd.s16 q12, q12, q4 \n" // Accumulate B
"vqadd.s16 q13, q13, q5 \n" // Accumulate G
"vqadd.s16 q14, q14, q6 \n" // Accumulate R
"vqadd.s16 q15, q15, q7 \n" // Accumulate A
"vqshrun.s16 d16, q12, #6 \n" // 16 bit to 8 bit B
"vqshrun.s16 d18, q13, #6 \n" // 16 bit to 8 bit G
"vqshrun.s16 d20, q14, #6 \n" // 16 bit to 8 bit R
"vqshrun.s16 d22, q15, #6 \n" // 16 bit to 8 bit A
"vst4.8 {d16, d18, d20, d22}, [%1]! \n" // store 8 ARGB pixels.
"bgt 1b \n"
: "+r"(src_argb), // %0
"+r"(dst_argb), // %1
"+r"(width) // %2
: "r"(matrix_argb) // %3
: "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7", "q8", "q9",
"q10", "q11", "q12", "q13", "q14", "q15"
);
}
// TODO(fbarchard): fix vqshrun in ARGBMultiplyRow_NEON and reenable.
#ifdef HAS_ARGBMULTIPLYROW_NEON
// Multiply 2 rows of ARGB pixels together, 8 pixels at a time.
void ARGBMultiplyRow_NEON(const uint8* src_argb0, const uint8* src_argb1,
uint8* dst_argb, int width) {
asm volatile (
// 8 pixel loop.
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d2, d4, d6}, [%0]! \n" // load 8 ARGB pixels.
"vld4.8 {d1, d3, d5, d7}, [%1]! \n" // load 8 more ARGB pixels.
"subs %3, %3, #8 \n" // 8 processed per loop.
"vmull.u8 q0, d0, d1 \n" // multiply B
"vmull.u8 q1, d2, d3 \n" // multiply G
"vmull.u8 q2, d4, d5 \n" // multiply R
"vmull.u8 q3, d6, d7 \n" // multiply A
"vrshrn.u16 d0, q0, #8 \n" // 16 bit to 8 bit B
"vrshrn.u16 d1, q1, #8 \n" // 16 bit to 8 bit G
"vrshrn.u16 d2, q2, #8 \n" // 16 bit to 8 bit R
"vrshrn.u16 d3, q3, #8 \n" // 16 bit to 8 bit A
"vst4.8 {d0, d1, d2, d3}, [%2]! \n" // store 8 ARGB pixels.
"bgt 1b \n"
: "+r"(src_argb0), // %0
"+r"(src_argb1), // %1
"+r"(dst_argb), // %2
"+r"(width) // %3
:
: "cc", "memory", "q0", "q1", "q2", "q3"
);
}
#endif // HAS_ARGBMULTIPLYROW_NEON
// Add 2 rows of ARGB pixels together, 8 pixels at a time.
void ARGBAddRow_NEON(const uint8* src_argb0, const uint8* src_argb1,
uint8* dst_argb, int width) {
asm volatile (
// 8 pixel loop.
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d1, d2, d3}, [%0]! \n" // load 8 ARGB pixels.
"vld4.8 {d4, d5, d6, d7}, [%1]! \n" // load 8 more ARGB pixels.
"subs %3, %3, #8 \n" // 8 processed per loop.
"vqadd.u8 q0, q0, q2 \n" // add B, G
"vqadd.u8 q1, q1, q3 \n" // add R, A
"vst4.8 {d0, d1, d2, d3}, [%2]! \n" // store 8 ARGB pixels.
"bgt 1b \n"
: "+r"(src_argb0), // %0
"+r"(src_argb1), // %1
"+r"(dst_argb), // %2
"+r"(width) // %3
:
: "cc", "memory", "q0", "q1", "q2", "q3"
);
}
// Subtract 2 rows of ARGB pixels, 8 pixels at a time.
void ARGBSubtractRow_NEON(const uint8* src_argb0, const uint8* src_argb1,
uint8* dst_argb, int width) {
asm volatile (
// 8 pixel loop.
".p2align 2 \n"
"1: \n"
"vld4.8 {d0, d1, d2, d3}, [%0]! \n" // load 8 ARGB pixels.
"vld4.8 {d4, d5, d6, d7}, [%1]! \n" // load 8 more ARGB pixels.
"subs %3, %3, #8 \n" // 8 processed per loop.
"vqsub.u8 q0, q0, q2 \n" // subtract B, G
"vqsub.u8 q1, q1, q3 \n" // subtract R, A
"vst4.8 {d0, d1, d2, d3}, [%2]! \n" // store 8 ARGB pixels.
"bgt 1b \n"
: "+r"(src_argb0), // %0
"+r"(src_argb1), // %1
"+r"(dst_argb), // %2
"+r"(width) // %3
:
: "cc", "memory", "q0", "q1", "q2", "q3"
);
}
// Adds Sobel X and Sobel Y and stores Sobel into ARGB.
// A = 255
// R = Sobel
// G = Sobel
// B = Sobel
void SobelRow_NEON(const uint8* src_sobelx, const uint8* src_sobely,
uint8* dst_argb, int width) {
asm volatile (
"vmov.u8 d3, #255 \n" // alpha
// 8 pixel loop.
".p2align 2 \n"
"1: \n"
"vld1.8 {d0}, [%0]! \n" // load 8 sobelx.
"vld1.8 {d1}, [%1]! \n" // load 8 sobely.
"subs %3, %3, #8 \n" // 8 processed per loop.
"vqadd.u8 d0, d0, d1 \n" // add
"vmov.u8 d1, d0 \n"
"vmov.u8 d2, d0 \n"
"vst4.8 {d0, d1, d2, d3}, [%2]! \n" // store 8 ARGB pixels.
"bgt 1b \n"
: "+r"(src_sobelx), // %0
"+r"(src_sobely), // %1
"+r"(dst_argb), // %2
"+r"(width) // %3
:
: "cc", "memory", "q0", "q1"
);
}
// Adds Sobel X and Sobel Y and stores Sobel into plane.
void SobelToPlaneRow_NEON(const uint8* src_sobelx, const uint8* src_sobely,
uint8* dst_y, int width) {
asm volatile (
// 16 pixel loop.
".p2align 2 \n"
"1: \n"
"vld1.8 {q0}, [%0]! \n" // load 16 sobelx.
"vld1.8 {q1}, [%1]! \n" // load 16 sobely.
"subs %3, %3, #16 \n" // 16 processed per loop.
"vqadd.u8 q0, q0, q1 \n" // add
"vst1.8 {q0}, [%2]! \n" // store 16 pixels.
"bgt 1b \n"
: "+r"(src_sobelx), // %0
"+r"(src_sobely), // %1
"+r"(dst_y), // %2
"+r"(width) // %3
:
: "cc", "memory", "q0", "q1"
);
}
// Mixes Sobel X, Sobel Y and Sobel into ARGB.
// A = 255
// R = Sobel X
// G = Sobel
// B = Sobel Y
void SobelXYRow_NEON(const uint8* src_sobelx, const uint8* src_sobely,
uint8* dst_argb, int width) {
asm volatile (
"vmov.u8 d3, #255 \n" // alpha
// 8 pixel loop.
".p2align 2 \n"
"1: \n"
"vld1.8 {d2}, [%0]! \n" // load 8 sobelx.
"vld1.8 {d0}, [%1]! \n" // load 8 sobely.
"subs %3, %3, #8 \n" // 8 processed per loop.
"vqadd.u8 d1, d0, d2 \n" // add
"vst4.8 {d0, d1, d2, d3}, [%2]! \n" // store 8 ARGB pixels.
"bgt 1b \n"
: "+r"(src_sobelx), // %0
"+r"(src_sobely), // %1
"+r"(dst_argb), // %2
"+r"(width) // %3
:
: "cc", "memory", "q0", "q1"
);
}
// SobelX as a matrix is
// -1 0 1
// -2 0 2
// -1 0 1
void SobelXRow_NEON(const uint8* src_y0, const uint8* src_y1,
const uint8* src_y2, uint8* dst_sobelx, int width) {
asm volatile (
".p2align 2 \n"
"1: \n"
"vld1.8 {d0}, [%0],%5 \n" // top
"vld1.8 {d1}, [%0],%6 \n"
"vsubl.u8 q0, d0, d1 \n"
"vld1.8 {d2}, [%1],%5 \n" // center * 2
"vld1.8 {d3}, [%1],%6 \n"
"vsubl.u8 q1, d2, d3 \n"
"vadd.s16 q0, q0, q1 \n"
"vadd.s16 q0, q0, q1 \n"
"vld1.8 {d2}, [%2],%5 \n" // bottom
"vld1.8 {d3}, [%2],%6 \n"
"subs %4, %4, #8 \n" // 8 pixels
"vsubl.u8 q1, d2, d3 \n"
"vadd.s16 q0, q0, q1 \n"
"vabs.s16 q0, q0 \n"
"vqmovn.u16 d0, q0 \n"
"vst1.8 {d0}, [%3]! \n" // store 8 sobelx
"bgt 1b \n"
: "+r"(src_y0), // %0
"+r"(src_y1), // %1
"+r"(src_y2), // %2
"+r"(dst_sobelx), // %3
"+r"(width) // %4
: "r"(2), // %5
"r"(6) // %6
: "cc", "memory", "q0", "q1" // Clobber List
);
}
// SobelY as a matrix is
// -1 -2 -1
// 0 0 0
// 1 2 1
void SobelYRow_NEON(const uint8* src_y0, const uint8* src_y1,
uint8* dst_sobely, int width) {
asm volatile (
".p2align 2 \n"
"1: \n"
"vld1.8 {d0}, [%0],%4 \n" // left
"vld1.8 {d1}, [%1],%4 \n"
"vsubl.u8 q0, d0, d1 \n"
"vld1.8 {d2}, [%0],%4 \n" // center * 2
"vld1.8 {d3}, [%1],%4 \n"
"vsubl.u8 q1, d2, d3 \n"
"vadd.s16 q0, q0, q1 \n"
"vadd.s16 q0, q0, q1 \n"
"vld1.8 {d2}, [%0],%5 \n" // right
"vld1.8 {d3}, [%1],%5 \n"
"subs %3, %3, #8 \n" // 8 pixels
"vsubl.u8 q1, d2, d3 \n"
"vadd.s16 q0, q0, q1 \n"
"vabs.s16 q0, q0 \n"
"vqmovn.u16 d0, q0 \n"
"vst1.8 {d0}, [%2]! \n" // store 8 sobely
"bgt 1b \n"
: "+r"(src_y0), // %0
"+r"(src_y1), // %1
"+r"(dst_sobely), // %2
"+r"(width) // %3
: "r"(1), // %4
"r"(6) // %5
: "cc", "memory", "q0", "q1" // Clobber List
);
}
#endif // __ARM_NEON__
#ifdef __cplusplus
} // extern "C"
} // namespace libyuv
#endif