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Diffstat (limited to 'media/libyuv/source/row_neon64.cc')
| -rw-r--r-- | media/libyuv/source/row_neon64.cc | 2809 |
1 files changed, 2809 insertions, 0 deletions
diff --git a/media/libyuv/source/row_neon64.cc b/media/libyuv/source/row_neon64.cc new file mode 100644 index 000000000..6375d4f55 --- /dev/null +++ b/media/libyuv/source/row_neon64.cc @@ -0,0 +1,2809 @@ +/* + * Copyright 2014 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 armv8 64 bit. +#if !defined(LIBYUV_DISABLE_NEON) && defined(__aarch64__) + +// Read 8 Y, 4 U and 4 V from 422 +#define READYUV422 \ + MEMACCESS(0) \ + "ld1 {v0.8b}, [%0], #8 \n" \ + MEMACCESS(1) \ + "ld1 {v1.s}[0], [%1], #4 \n" \ + MEMACCESS(2) \ + "ld1 {v1.s}[1], [%2], #4 \n" + +// Read 8 Y, 2 U and 2 V from 422 +#define READYUV411 \ + MEMACCESS(0) \ + "ld1 {v0.8b}, [%0], #8 \n" \ + MEMACCESS(1) \ + "ld1 {v2.h}[0], [%1], #2 \n" \ + MEMACCESS(2) \ + "ld1 {v2.h}[1], [%2], #2 \n" \ + "zip1 v1.8b, v2.8b, v2.8b \n" + +// Read 8 Y, 8 U and 8 V from 444 +#define READYUV444 \ + MEMACCESS(0) \ + "ld1 {v0.8b}, [%0], #8 \n" \ + MEMACCESS(1) \ + "ld1 {v1.d}[0], [%1], #8 \n" \ + MEMACCESS(2) \ + "ld1 {v1.d}[1], [%2], #8 \n" \ + "uaddlp v1.8h, v1.16b \n" \ + "rshrn v1.8b, v1.8h, #1 \n" + +// Read 8 Y, and set 4 U and 4 V to 128 +#define READYUV400 \ + MEMACCESS(0) \ + "ld1 {v0.8b}, [%0], #8 \n" \ + "movi v1.8b , #128 \n" + +// Read 8 Y and 4 UV from NV12 +#define READNV12 \ + MEMACCESS(0) \ + "ld1 {v0.8b}, [%0], #8 \n" \ + MEMACCESS(1) \ + "ld1 {v2.8b}, [%1], #8 \n" \ + "uzp1 v1.8b, v2.8b, v2.8b \n" \ + "uzp2 v3.8b, v2.8b, v2.8b \n" \ + "ins v1.s[1], v3.s[0] \n" + +// Read 8 Y and 4 VU from NV21 +#define READNV21 \ + MEMACCESS(0) \ + "ld1 {v0.8b}, [%0], #8 \n" \ + MEMACCESS(1) \ + "ld1 {v2.8b}, [%1], #8 \n" \ + "uzp1 v3.8b, v2.8b, v2.8b \n" \ + "uzp2 v1.8b, v2.8b, v2.8b \n" \ + "ins v1.s[1], v3.s[0] \n" + +// Read 8 YUY2 +#define READYUY2 \ + MEMACCESS(0) \ + "ld2 {v0.8b, v1.8b}, [%0], #16 \n" \ + "uzp2 v3.8b, v1.8b, v1.8b \n" \ + "uzp1 v1.8b, v1.8b, v1.8b \n" \ + "ins v1.s[1], v3.s[0] \n" + +// Read 8 UYVY +#define READUYVY \ + MEMACCESS(0) \ + "ld2 {v2.8b, v3.8b}, [%0], #16 \n" \ + "orr v0.8b, v3.8b, v3.8b \n" \ + "uzp1 v1.8b, v2.8b, v2.8b \n" \ + "uzp2 v3.8b, v2.8b, v2.8b \n" \ + "ins v1.s[1], v3.s[0] \n" + +#define YUVTORGB_SETUP \ + "ld1r {v24.8h}, [%[kUVBiasBGR]], #2 \n" \ + "ld1r {v25.8h}, [%[kUVBiasBGR]], #2 \n" \ + "ld1r {v26.8h}, [%[kUVBiasBGR]] \n" \ + "ld1r {v31.4s}, [%[kYToRgb]] \n" \ + "ld2 {v27.8h, v28.8h}, [%[kUVToRB]] \n" \ + "ld2 {v29.8h, v30.8h}, [%[kUVToG]] \n" + +#define YUVTORGB(vR, vG, vB) \ + "uxtl v0.8h, v0.8b \n" /* Extract Y */ \ + "shll v2.8h, v1.8b, #8 \n" /* Replicate UV */ \ + "ushll2 v3.4s, v0.8h, #0 \n" /* Y */ \ + "ushll v0.4s, v0.4h, #0 \n" \ + "mul v3.4s, v3.4s, v31.4s \n" \ + "mul v0.4s, v0.4s, v31.4s \n" \ + "sqshrun v0.4h, v0.4s, #16 \n" \ + "sqshrun2 v0.8h, v3.4s, #16 \n" /* Y */ \ + "uaddw v1.8h, v2.8h, v1.8b \n" /* Replicate UV */ \ + "mov v2.d[0], v1.d[1] \n" /* Extract V */ \ + "uxtl v2.8h, v2.8b \n" \ + "uxtl v1.8h, v1.8b \n" /* Extract U */ \ + "mul v3.8h, v1.8h, v27.8h \n" \ + "mul v5.8h, v1.8h, v29.8h \n" \ + "mul v6.8h, v2.8h, v30.8h \n" \ + "mul v7.8h, v2.8h, v28.8h \n" \ + "sqadd v6.8h, v6.8h, v5.8h \n" \ + "sqadd " #vB ".8h, v24.8h, v0.8h \n" /* B */ \ + "sqadd " #vG ".8h, v25.8h, v0.8h \n" /* G */ \ + "sqadd " #vR ".8h, v26.8h, v0.8h \n" /* R */ \ + "sqadd " #vB ".8h, " #vB ".8h, v3.8h \n" /* B */ \ + "sqsub " #vG ".8h, " #vG ".8h, v6.8h \n" /* G */ \ + "sqadd " #vR ".8h, " #vR ".8h, v7.8h \n" /* R */ \ + "sqshrun " #vB ".8b, " #vB ".8h, #6 \n" /* B */ \ + "sqshrun " #vG ".8b, " #vG ".8h, #6 \n" /* G */ \ + "sqshrun " #vR ".8b, " #vR ".8h, #6 \n" /* R */ \ + +void I444ToARGBRow_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_argb, + const struct YuvConstants* yuvconstants, + int width) { + asm volatile ( + YUVTORGB_SETUP + "movi v23.8b, #255 \n" /* A */ + "1: \n" + READYUV444 + YUVTORGB(v22, v21, v20) + "subs %w4, %w4, #8 \n" + MEMACCESS(3) + "st4 {v20.8b,v21.8b,v22.8b,v23.8b}, [%3], #32 \n" + "b.gt 1b \n" + : "+r"(src_y), // %0 + "+r"(src_u), // %1 + "+r"(src_v), // %2 + "+r"(dst_argb), // %3 + "+r"(width) // %4 + : [kUVToRB]"r"(&yuvconstants->kUVToRB), + [kUVToG]"r"(&yuvconstants->kUVToG), + [kUVBiasBGR]"r"(&yuvconstants->kUVBiasBGR), + [kYToRgb]"r"(&yuvconstants->kYToRgb) + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v20", + "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30" + ); +} + +void I422ToARGBRow_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_argb, + const struct YuvConstants* yuvconstants, + int width) { + asm volatile ( + YUVTORGB_SETUP + "movi v23.8b, #255 \n" /* A */ + "1: \n" + READYUV422 + YUVTORGB(v22, v21, v20) + "subs %w4, %w4, #8 \n" + MEMACCESS(3) + "st4 {v20.8b,v21.8b,v22.8b,v23.8b}, [%3], #32 \n" + "b.gt 1b \n" + : "+r"(src_y), // %0 + "+r"(src_u), // %1 + "+r"(src_v), // %2 + "+r"(dst_argb), // %3 + "+r"(width) // %4 + : [kUVToRB]"r"(&yuvconstants->kUVToRB), + [kUVToG]"r"(&yuvconstants->kUVToG), + [kUVBiasBGR]"r"(&yuvconstants->kUVBiasBGR), + [kYToRgb]"r"(&yuvconstants->kYToRgb) + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v20", + "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30" + ); +} + +void I422AlphaToARGBRow_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + const uint8* src_a, + uint8* dst_argb, + const struct YuvConstants* yuvconstants, + int width) { + asm volatile ( + YUVTORGB_SETUP + "1: \n" + READYUV422 + YUVTORGB(v22, v21, v20) + MEMACCESS(3) + "ld1 {v23.8b}, [%3], #8 \n" + "subs %w5, %w5, #8 \n" + MEMACCESS(4) + "st4 {v20.8b,v21.8b,v22.8b,v23.8b}, [%4], #32 \n" + "b.gt 1b \n" + : "+r"(src_y), // %0 + "+r"(src_u), // %1 + "+r"(src_v), // %2 + "+r"(src_a), // %3 + "+r"(dst_argb), // %4 + "+r"(width) // %5 + : [kUVToRB]"r"(&yuvconstants->kUVToRB), + [kUVToG]"r"(&yuvconstants->kUVToG), + [kUVBiasBGR]"r"(&yuvconstants->kUVBiasBGR), + [kYToRgb]"r"(&yuvconstants->kYToRgb) + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v20", + "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30" + ); +} + +void I411ToARGBRow_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_argb, + const struct YuvConstants* yuvconstants, + int width) { + asm volatile ( + YUVTORGB_SETUP + "movi v23.8b, #255 \n" /* A */ + "1: \n" + READYUV411 + YUVTORGB(v22, v21, v20) + "subs %w4, %w4, #8 \n" + MEMACCESS(3) + "st4 {v20.8b,v21.8b,v22.8b,v23.8b}, [%3], #32 \n" + "b.gt 1b \n" + : "+r"(src_y), // %0 + "+r"(src_u), // %1 + "+r"(src_v), // %2 + "+r"(dst_argb), // %3 + "+r"(width) // %4 + : [kUVToRB]"r"(&yuvconstants->kUVToRB), + [kUVToG]"r"(&yuvconstants->kUVToG), + [kUVBiasBGR]"r"(&yuvconstants->kUVBiasBGR), + [kYToRgb]"r"(&yuvconstants->kYToRgb) + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v20", + "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30" + ); +} + +void I422ToRGBARow_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_rgba, + const struct YuvConstants* yuvconstants, + int width) { + asm volatile ( + YUVTORGB_SETUP + "movi v20.8b, #255 \n" /* A */ + "1: \n" + READYUV422 + YUVTORGB(v23, v22, v21) + "subs %w4, %w4, #8 \n" + MEMACCESS(3) + "st4 {v20.8b,v21.8b,v22.8b,v23.8b}, [%3], #32 \n" + "b.gt 1b \n" + : "+r"(src_y), // %0 + "+r"(src_u), // %1 + "+r"(src_v), // %2 + "+r"(dst_rgba), // %3 + "+r"(width) // %4 + : [kUVToRB]"r"(&yuvconstants->kUVToRB), + [kUVToG]"r"(&yuvconstants->kUVToG), + [kUVBiasBGR]"r"(&yuvconstants->kUVBiasBGR), + [kYToRgb]"r"(&yuvconstants->kYToRgb) + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v20", + "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30" + ); +} + +void I422ToRGB24Row_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_rgb24, + const struct YuvConstants* yuvconstants, + int width) { + asm volatile ( + YUVTORGB_SETUP + "1: \n" + READYUV422 + YUVTORGB(v22, v21, v20) + "subs %w4, %w4, #8 \n" + MEMACCESS(3) + "st3 {v20.8b,v21.8b,v22.8b}, [%3], #24 \n" + "b.gt 1b \n" + : "+r"(src_y), // %0 + "+r"(src_u), // %1 + "+r"(src_v), // %2 + "+r"(dst_rgb24), // %3 + "+r"(width) // %4 + : [kUVToRB]"r"(&yuvconstants->kUVToRB), + [kUVToG]"r"(&yuvconstants->kUVToG), + [kUVBiasBGR]"r"(&yuvconstants->kUVBiasBGR), + [kYToRgb]"r"(&yuvconstants->kYToRgb) + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v20", + "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30" + ); +} + +#define ARGBTORGB565 \ + "shll v0.8h, v22.8b, #8 \n" /* R */ \ + "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 */ + +void I422ToRGB565Row_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_rgb565, + const struct YuvConstants* yuvconstants, + int width) { + asm volatile ( + YUVTORGB_SETUP + "1: \n" + READYUV422 + YUVTORGB(v22, v21, v20) + "subs %w4, %w4, #8 \n" + ARGBTORGB565 + MEMACCESS(3) + "st1 {v0.8h}, [%3], #16 \n" // store 8 pixels RGB565. + "b.gt 1b \n" + : "+r"(src_y), // %0 + "+r"(src_u), // %1 + "+r"(src_v), // %2 + "+r"(dst_rgb565), // %3 + "+r"(width) // %4 + : [kUVToRB]"r"(&yuvconstants->kUVToRB), + [kUVToG]"r"(&yuvconstants->kUVToG), + [kUVBiasBGR]"r"(&yuvconstants->kUVBiasBGR), + [kYToRgb]"r"(&yuvconstants->kYToRgb) + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v20", + "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30" + ); +} + +#define ARGBTOARGB1555 \ + "shll v0.8h, v23.8b, #8 \n" /* A */ \ + "shll v22.8h, v22.8b, #8 \n" /* R */ \ + "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 */ + +void I422ToARGB1555Row_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_argb1555, + const struct YuvConstants* yuvconstants, + int width) { + asm volatile ( + YUVTORGB_SETUP + "movi v23.8b, #255 \n" + "1: \n" + READYUV422 + YUVTORGB(v22, v21, v20) + "subs %w4, %w4, #8 \n" + ARGBTOARGB1555 + MEMACCESS(3) + "st1 {v0.8h}, [%3], #16 \n" // store 8 pixels RGB565. + "b.gt 1b \n" + : "+r"(src_y), // %0 + "+r"(src_u), // %1 + "+r"(src_v), // %2 + "+r"(dst_argb1555), // %3 + "+r"(width) // %4 + : [kUVToRB]"r"(&yuvconstants->kUVToRB), + [kUVToG]"r"(&yuvconstants->kUVToG), + [kUVBiasBGR]"r"(&yuvconstants->kUVBiasBGR), + [kYToRgb]"r"(&yuvconstants->kYToRgb) + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v20", + "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30" + ); +} + +#define ARGBTOARGB4444 \ + /* Input v20.8b<=B, v21.8b<=G, v22.8b<=R, v23.8b<=A, v4.8b<=0x0f */ \ + "ushr v20.8b, v20.8b, #4 \n" /* B */ \ + "bic v21.8b, v21.8b, v4.8b \n" /* G */ \ + "ushr v22.8b, v22.8b, #4 \n" /* R */ \ + "bic v23.8b, v23.8b, v4.8b \n" /* A */ \ + "orr v0.8b, v20.8b, v21.8b \n" /* BG */ \ + "orr v1.8b, v22.8b, v23.8b \n" /* RA */ \ + "zip1 v0.16b, v0.16b, v1.16b \n" /* BGRA */ + +void I422ToARGB4444Row_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_argb4444, + const struct YuvConstants* yuvconstants, + int width) { + asm volatile ( + YUVTORGB_SETUP + "movi v4.16b, #0x0f \n" // bits to clear with vbic. + "1: \n" + READYUV422 + YUVTORGB(v22, v21, v20) + "subs %w4, %w4, #8 \n" + "movi v23.8b, #255 \n" + ARGBTOARGB4444 + MEMACCESS(3) + "st1 {v0.8h}, [%3], #16 \n" // store 8 pixels ARGB4444. + "b.gt 1b \n" + : "+r"(src_y), // %0 + "+r"(src_u), // %1 + "+r"(src_v), // %2 + "+r"(dst_argb4444), // %3 + "+r"(width) // %4 + : [kUVToRB]"r"(&yuvconstants->kUVToRB), + [kUVToG]"r"(&yuvconstants->kUVToG), + [kUVBiasBGR]"r"(&yuvconstants->kUVBiasBGR), + [kYToRgb]"r"(&yuvconstants->kYToRgb) + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v20", + "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30" + ); +} + +void I400ToARGBRow_NEON(const uint8* src_y, + uint8* dst_argb, + int width) { + asm volatile ( + YUVTORGB_SETUP + "movi v23.8b, #255 \n" + "1: \n" + READYUV400 + YUVTORGB(v22, v21, v20) + "subs %w2, %w2, #8 \n" + MEMACCESS(1) + "st4 {v20.8b,v21.8b,v22.8b,v23.8b}, [%1], #32 \n" + "b.gt 1b \n" + : "+r"(src_y), // %0 + "+r"(dst_argb), // %1 + "+r"(width) // %2 + : [kUVToRB]"r"(&kYuvI601Constants.kUVToRB), + [kUVToG]"r"(&kYuvI601Constants.kUVToG), + [kUVBiasBGR]"r"(&kYuvI601Constants.kUVBiasBGR), + [kYToRgb]"r"(&kYuvI601Constants.kYToRgb) + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v20", + "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30" + ); +} + +void J400ToARGBRow_NEON(const uint8* src_y, + uint8* dst_argb, + int width) { + asm volatile ( + "movi v23.8b, #255 \n" + "1: \n" + MEMACCESS(0) + "ld1 {v20.8b}, [%0], #8 \n" + "orr v21.8b, v20.8b, v20.8b \n" + "orr v22.8b, v20.8b, v20.8b \n" + "subs %w2, %w2, #8 \n" + MEMACCESS(1) + "st4 {v20.8b,v21.8b,v22.8b,v23.8b}, [%1], #32 \n" + "b.gt 1b \n" + : "+r"(src_y), // %0 + "+r"(dst_argb), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v20", "v21", "v22", "v23" + ); +} + +void NV12ToARGBRow_NEON(const uint8* src_y, + const uint8* src_uv, + uint8* dst_argb, + const struct YuvConstants* yuvconstants, + int width) { + asm volatile ( + YUVTORGB_SETUP + "movi v23.8b, #255 \n" + "1: \n" + READNV12 + YUVTORGB(v22, v21, v20) + "subs %w3, %w3, #8 \n" + MEMACCESS(2) + "st4 {v20.8b,v21.8b,v22.8b,v23.8b}, [%2], #32 \n" + "b.gt 1b \n" + : "+r"(src_y), // %0 + "+r"(src_uv), // %1 + "+r"(dst_argb), // %2 + "+r"(width) // %3 + : [kUVToRB]"r"(&yuvconstants->kUVToRB), + [kUVToG]"r"(&yuvconstants->kUVToG), + [kUVBiasBGR]"r"(&yuvconstants->kUVBiasBGR), + [kYToRgb]"r"(&yuvconstants->kYToRgb) + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v20", + "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30" + ); +} + +void NV21ToARGBRow_NEON(const uint8* src_y, + const uint8* src_vu, + uint8* dst_argb, + const struct YuvConstants* yuvconstants, + int width) { + asm volatile ( + YUVTORGB_SETUP + "movi v23.8b, #255 \n" + "1: \n" + READNV21 + YUVTORGB(v22, v21, v20) + "subs %w3, %w3, #8 \n" + MEMACCESS(2) + "st4 {v20.8b,v21.8b,v22.8b,v23.8b}, [%2], #32 \n" + "b.gt 1b \n" + : "+r"(src_y), // %0 + "+r"(src_vu), // %1 + "+r"(dst_argb), // %2 + "+r"(width) // %3 + : [kUVToRB]"r"(&yuvconstants->kUVToRB), + [kUVToG]"r"(&yuvconstants->kUVToG), + [kUVBiasBGR]"r"(&yuvconstants->kUVBiasBGR), + [kYToRgb]"r"(&yuvconstants->kYToRgb) + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v20", + "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30" + ); +} + +void NV12ToRGB565Row_NEON(const uint8* src_y, + const uint8* src_uv, + uint8* dst_rgb565, + const struct YuvConstants* yuvconstants, + int width) { + asm volatile ( + YUVTORGB_SETUP + "1: \n" + READNV12 + YUVTORGB(v22, v21, v20) + "subs %w3, %w3, #8 \n" + ARGBTORGB565 + MEMACCESS(2) + "st1 {v0.8h}, [%2], 16 \n" // store 8 pixels RGB565. + "b.gt 1b \n" + : "+r"(src_y), // %0 + "+r"(src_uv), // %1 + "+r"(dst_rgb565), // %2 + "+r"(width) // %3 + : [kUVToRB]"r"(&yuvconstants->kUVToRB), + [kUVToG]"r"(&yuvconstants->kUVToG), + [kUVBiasBGR]"r"(&yuvconstants->kUVBiasBGR), + [kYToRgb]"r"(&yuvconstants->kYToRgb) + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v20", + "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30" + ); +} + +void YUY2ToARGBRow_NEON(const uint8* src_yuy2, + uint8* dst_argb, + const struct YuvConstants* yuvconstants, + int width) { + asm volatile ( + YUVTORGB_SETUP + "movi v23.8b, #255 \n" + "1: \n" + READYUY2 + YUVTORGB(v22, v21, v20) + "subs %w2, %w2, #8 \n" + MEMACCESS(1) + "st4 {v20.8b,v21.8b,v22.8b,v23.8b}, [%1], #32 \n" + "b.gt 1b \n" + : "+r"(src_yuy2), // %0 + "+r"(dst_argb), // %1 + "+r"(width) // %2 + : [kUVToRB]"r"(&yuvconstants->kUVToRB), + [kUVToG]"r"(&yuvconstants->kUVToG), + [kUVBiasBGR]"r"(&yuvconstants->kUVBiasBGR), + [kYToRgb]"r"(&yuvconstants->kYToRgb) + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v20", + "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30" + ); +} + +void UYVYToARGBRow_NEON(const uint8* src_uyvy, + uint8* dst_argb, + const struct YuvConstants* yuvconstants, + int width) { + asm volatile ( + YUVTORGB_SETUP + "movi v23.8b, #255 \n" + "1: \n" + READUYVY + YUVTORGB(v22, v21, v20) + "subs %w2, %w2, #8 \n" + MEMACCESS(1) + "st4 {v20.8b,v21.8b,v22.8b,v23.8b}, [%1], 32 \n" + "b.gt 1b \n" + : "+r"(src_uyvy), // %0 + "+r"(dst_argb), // %1 + "+r"(width) // %2 + : [kUVToRB]"r"(&yuvconstants->kUVToRB), + [kUVToG]"r"(&yuvconstants->kUVToG), + [kUVBiasBGR]"r"(&yuvconstants->kUVBiasBGR), + [kYToRgb]"r"(&yuvconstants->kYToRgb) + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v20", + "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30" + ); +} + +// 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 ( + "1: \n" + MEMACCESS(0) + "ld2 {v0.16b,v1.16b}, [%0], #32 \n" // load 16 pairs of UV + "subs %w3, %w3, #16 \n" // 16 processed per loop + MEMACCESS(1) + "st1 {v0.16b}, [%1], #16 \n" // store U + MEMACCESS(2) + "st1 {v1.16b}, [%2], #16 \n" // store V + "b.gt 1b \n" + : "+r"(src_uv), // %0 + "+r"(dst_u), // %1 + "+r"(dst_v), // %2 + "+r"(width) // %3 // Output registers + : // Input registers + : "cc", "memory", "v0", "v1" // 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 ( + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" // load U + MEMACCESS(1) + "ld1 {v1.16b}, [%1], #16 \n" // load V + "subs %w3, %w3, #16 \n" // 16 processed per loop + MEMACCESS(2) + "st2 {v0.16b,v1.16b}, [%2], #32 \n" // store 16 pairs of UV + "b.gt 1b \n" + : + "+r"(src_u), // %0 + "+r"(src_v), // %1 + "+r"(dst_uv), // %2 + "+r"(width) // %3 // Output registers + : // Input registers + : "cc", "memory", "v0", "v1" // 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 ( + "1: \n" + MEMACCESS(0) + "ld1 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n" // load 32 + "subs %w2, %w2, #32 \n" // 32 processed per loop + MEMACCESS(1) + "st1 {v0.8b,v1.8b,v2.8b,v3.8b}, [%1], #32 \n" // store 32 + "b.gt 1b \n" + : "+r"(src), // %0 + "+r"(dst), // %1 + "+r"(count) // %2 // Output registers + : // Input registers + : "cc", "memory", "v0", "v1", "v2", "v3" // Clobber List + ); +} + +// SetRow writes 'count' bytes using an 8 bit value repeated. +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 + MEMACCESS(0) + "st1 {v0.16b}, [%0], #16 \n" // store + "b.gt 1b \n" + : "+r"(dst), // %0 + "+r"(count) // %1 + : "r"(v8) // %2 + : "cc", "memory", "v0" + ); +} + +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 + MEMACCESS(0) + "st1 {v0.16b}, [%0], #16 \n" // store + "b.gt 1b \n" + : "+r"(dst), // %0 + "+r"(count) // %1 + : "r"(v32) // %2 + : "cc", "memory", "v0" + ); +} + +void MirrorRow_NEON(const uint8* src, uint8* dst, int width) { + asm volatile ( + // Start at end of source row. + "add %0, %0, %w2, sxtw \n" + "sub %0, %0, #16 \n" + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], %3 \n" // src -= 16 + "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 + MEMACCESS(1) + "st1 {v0.D}[0], [%1], #8 \n" + "b.gt 1b \n" + : "+r"(src), // %0 + "+r"(dst), // %1 + "+r"(width) // %2 + : "r"((ptrdiff_t)-16) // %3 + : "cc", "memory", "v0" + ); +} + +void MirrorUVRow_NEON(const uint8* src_uv, uint8* dst_u, uint8* dst_v, + int width) { + asm volatile ( + // Start at end of source row. + "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 %w3, %w3, #8 \n" // 8 pixels per loop. + "rev64 v0.8b, v0.8b \n" + "rev64 v1.8b, v1.8b \n" + MEMACCESS(1) + "st1 {v0.8b}, [%1], #8 \n" // dst += 8 + MEMACCESS(2) + "st1 {v1.8b}, [%2], #8 \n" + "b.gt 1b \n" + : "+r"(src_uv), // %0 + "+r"(dst_u), // %1 + "+r"(dst_v), // %2 + "+r"(width) // %3 + : "r"((ptrdiff_t)-16) // %4 + : "cc", "memory", "v0", "v1" + ); +} + +void ARGBMirrorRow_NEON(const uint8* src, uint8* dst, int width) { + asm volatile ( + // 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 %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 + MEMACCESS(1) + "st1 {v0.D}[0], [%1], #8 \n" + "b.gt 1b \n" + : "+r"(src), // %0 + "+r"(dst), // %1 + "+r"(width) // %2 + : "r"((ptrdiff_t)-16) // %3 + : "cc", "memory", "v0" + ); +} + +void RGB24ToARGBRow_NEON(const uint8* src_rgb24, uint8* dst_argb, int width) { + asm volatile ( + "movi v4.8b, #255 \n" // Alpha + "1: \n" + MEMACCESS(0) + "ld3 {v1.8b,v2.8b,v3.8b}, [%0], #24 \n" // load 8 pixels of RGB24. + "subs %w2, %w2, #8 \n" // 8 processed per loop. + MEMACCESS(1) + "st4 {v1.8b,v2.8b,v3.8b,v4.8b}, [%1], #32 \n" // store 8 ARGB pixels + "b.gt 1b \n" + : "+r"(src_rgb24), // %0 + "+r"(dst_argb), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v1", "v2", "v3", "v4" // Clobber List + ); +} + +void RAWToARGBRow_NEON(const uint8* src_raw, uint8* dst_argb, int width) { + asm volatile ( + "movi v5.8b, #255 \n" // Alpha + "1: \n" + MEMACCESS(0) + "ld3 {v0.8b,v1.8b,v2.8b}, [%0], #24 \n" // read r g b + "subs %w2, %w2, #8 \n" // 8 processed per loop. + "orr v3.8b, v1.8b, v1.8b \n" // move g + "orr v4.8b, v0.8b, v0.8b \n" // move r + MEMACCESS(1) + "st4 {v2.8b,v3.8b,v4.8b,v5.8b}, [%1], #32 \n" // store b g r a + "b.gt 1b \n" + : "+r"(src_raw), // %0 + "+r"(dst_argb), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5" // Clobber List + ); +} + +void RAWToRGB24Row_NEON(const uint8* src_raw, uint8* dst_rgb24, int width) { + asm volatile ( + "1: \n" + MEMACCESS(0) + "ld3 {v0.8b,v1.8b,v2.8b}, [%0], #24 \n" // read r g b + "subs %w2, %w2, #8 \n" // 8 processed per loop. + "orr v3.8b, v1.8b, v1.8b \n" // move g + "orr v4.8b, v0.8b, v0.8b \n" // move r + MEMACCESS(1) + "st3 {v2.8b,v3.8b,v4.8b}, [%1], #24 \n" // store b g r + "b.gt 1b \n" + : "+r"(src_raw), // %0 + "+r"(dst_rgb24), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4" // Clobber List + ); +} + +#define RGB565TOARGB \ + "shrn v6.8b, v0.8h, #5 \n" /* G xxGGGGGG */ \ + "shl v6.8b, v6.8b, #2 \n" /* G GGGGGG00 upper 6 */ \ + "ushr v4.8b, v6.8b, #6 \n" /* G 000000GG lower 2 */ \ + "orr v1.8b, v4.8b, v6.8b \n" /* G */ \ + "xtn v2.8b, v0.8h \n" /* B xxxBBBBB */ \ + "ushr v0.8h, v0.8h, #11 \n" /* R 000RRRRR */ \ + "xtn2 v2.16b,v0.8h \n" /* R in upper part */ \ + "shl v2.16b, v2.16b, #3 \n" /* R,B BBBBB000 upper 5 */ \ + "ushr v0.16b, v2.16b, #5 \n" /* R,B 00000BBB lower 3 */ \ + "orr v0.16b, v0.16b, v2.16b \n" /* R,B */ \ + "dup v2.2D, v0.D[1] \n" /* R */ + +void RGB565ToARGBRow_NEON(const uint8* src_rgb565, uint8* dst_argb, int width) { + asm volatile ( + "movi v3.8b, #255 \n" // Alpha + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" // load 8 RGB565 pixels. + "subs %w2, %w2, #8 \n" // 8 processed per loop. + RGB565TOARGB + MEMACCESS(1) + "st4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%1], #32 \n" // store 8 ARGB pixels + "b.gt 1b \n" + : "+r"(src_rgb565), // %0 + "+r"(dst_argb), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v6" // Clobber List + ); +} + +#define ARGB1555TOARGB \ + "ushr v2.8h, v0.8h, #10 \n" /* R xxxRRRRR */ \ + "shl v2.8h, v2.8h, #3 \n" /* R RRRRR000 upper 5 */ \ + "xtn v3.8b, v2.8h \n" /* RRRRR000 AAAAAAAA */ \ + \ + "sshr v2.8h, v0.8h, #15 \n" /* A AAAAAAAA */ \ + "xtn2 v3.16b, v2.8h \n" \ + \ + "xtn v2.8b, v0.8h \n" /* B xxxBBBBB */ \ + "shrn2 v2.16b,v0.8h, #5 \n" /* G xxxGGGGG */ \ + \ + "ushr v1.16b, v3.16b, #5 \n" /* R,A 00000RRR lower 3 */ \ + "shl v0.16b, v2.16b, #3 \n" /* B,G BBBBB000 upper 5 */ \ + "ushr v2.16b, v0.16b, #5 \n" /* B,G 00000BBB lower 3 */ \ + \ + "orr v0.16b, v0.16b, v2.16b \n" /* B,G */ \ + "orr v2.16b, v1.16b, v3.16b \n" /* R,A */ \ + "dup v1.2D, v0.D[1] \n" \ + "dup v3.2D, v2.D[1] \n" + +// RGB555TOARGB is same as ARGB1555TOARGB but ignores alpha. +#define RGB555TOARGB \ + "ushr v2.8h, v0.8h, #10 \n" /* R xxxRRRRR */ \ + "shl v2.8h, v2.8h, #3 \n" /* R RRRRR000 upper 5 */ \ + "xtn v3.8b, v2.8h \n" /* RRRRR000 */ \ + \ + "xtn v2.8b, v0.8h \n" /* B xxxBBBBB */ \ + "shrn2 v2.16b,v0.8h, #5 \n" /* G xxxGGGGG */ \ + \ + "ushr v1.16b, v3.16b, #5 \n" /* R 00000RRR lower 3 */ \ + "shl v0.16b, v2.16b, #3 \n" /* B,G BBBBB000 upper 5 */ \ + "ushr v2.16b, v0.16b, #5 \n" /* B,G 00000BBB lower 3 */ \ + \ + "orr v0.16b, v0.16b, v2.16b \n" /* B,G */ \ + "orr v2.16b, v1.16b, v3.16b \n" /* R */ \ + "dup v1.2D, v0.D[1] \n" /* G */ \ + +void ARGB1555ToARGBRow_NEON(const uint8* src_argb1555, uint8* dst_argb, + int width) { + asm volatile ( + "movi v3.8b, #255 \n" // Alpha + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" // load 8 ARGB1555 pixels. + "subs %w2, %w2, #8 \n" // 8 processed per loop. + ARGB1555TOARGB + MEMACCESS(1) + "st4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%1], #32 \n" // store 8 ARGB pixels + "b.gt 1b \n" + : "+r"(src_argb1555), // %0 + "+r"(dst_argb), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3" // Clobber List + ); +} + +#define ARGB4444TOARGB \ + "shrn v1.8b, v0.8h, #8 \n" /* v1(l) AR */ \ + "xtn2 v1.16b, v0.8h \n" /* v1(h) GB */ \ + "shl v2.16b, v1.16b, #4 \n" /* B,R BBBB0000 */ \ + "ushr v3.16b, v1.16b, #4 \n" /* G,A 0000GGGG */ \ + "ushr v0.16b, v2.16b, #4 \n" /* B,R 0000BBBB */ \ + "shl v1.16b, v3.16b, #4 \n" /* G,A GGGG0000 */ \ + "orr v2.16b, v0.16b, v2.16b \n" /* B,R BBBBBBBB */ \ + "orr v3.16b, v1.16b, v3.16b \n" /* G,A GGGGGGGG */ \ + "dup v0.2D, v2.D[1] \n" \ + "dup v1.2D, v3.D[1] \n" + +void ARGB4444ToARGBRow_NEON(const uint8* src_argb4444, uint8* dst_argb, + int width) { + asm volatile ( + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" // load 8 ARGB4444 pixels. + "subs %w2, %w2, #8 \n" // 8 processed per loop. + ARGB4444TOARGB + MEMACCESS(1) + "st4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%1], #32 \n" // store 8 ARGB pixels + "b.gt 1b \n" + : "+r"(src_argb4444), // %0 + "+r"(dst_argb), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4" // Clobber List + ); +} + +void ARGBToRGB24Row_NEON(const uint8* src_argb, uint8* dst_rgb24, int width) { + asm volatile ( + "1: \n" + MEMACCESS(0) + "ld4 {v1.8b,v2.8b,v3.8b,v4.8b}, [%0], #32 \n" // load 8 ARGB pixels + "subs %w2, %w2, #8 \n" // 8 processed per loop. + MEMACCESS(1) + "st3 {v1.8b,v2.8b,v3.8b}, [%1], #24 \n" // store 8 pixels of RGB24. + "b.gt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_rgb24), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v1", "v2", "v3", "v4" // Clobber List + ); +} + +void ARGBToRAWRow_NEON(const uint8* src_argb, uint8* dst_raw, int width) { + asm volatile ( + "1: \n" + MEMACCESS(0) + "ld4 {v1.8b,v2.8b,v3.8b,v4.8b}, [%0], #32 \n" // load b g r a + "subs %w2, %w2, #8 \n" // 8 processed per loop. + "orr v4.8b, v2.8b, v2.8b \n" // mov g + "orr v5.8b, v1.8b, v1.8b \n" // mov b + MEMACCESS(1) + "st3 {v3.8b,v4.8b,v5.8b}, [%1], #24 \n" // store r g b + "b.gt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_raw), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v1", "v2", "v3", "v4", "v5" // Clobber List + ); +} + +void YUY2ToYRow_NEON(const uint8* src_yuy2, uint8* dst_y, int width) { + asm volatile ( + "1: \n" + MEMACCESS(0) + "ld2 {v0.16b,v1.16b}, [%0], #32 \n" // load 16 pixels of YUY2. + "subs %w2, %w2, #16 \n" // 16 processed per loop. + MEMACCESS(1) + "st1 {v0.16b}, [%1], #16 \n" // store 16 pixels of Y. + "b.gt 1b \n" + : "+r"(src_yuy2), // %0 + "+r"(dst_y), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1" // Clobber List + ); +} + +void UYVYToYRow_NEON(const uint8* src_uyvy, uint8* dst_y, int width) { + asm volatile ( + "1: \n" + MEMACCESS(0) + "ld2 {v0.16b,v1.16b}, [%0], #32 \n" // load 16 pixels of UYVY. + "subs %w2, %w2, #16 \n" // 16 processed per loop. + MEMACCESS(1) + "st1 {v1.16b}, [%1], #16 \n" // store 16 pixels of Y. + "b.gt 1b \n" + : "+r"(src_uyvy), // %0 + "+r"(dst_y), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1" // Clobber List + ); +} + +void YUY2ToUV422Row_NEON(const uint8* src_yuy2, uint8* dst_u, uint8* dst_v, + int width) { + asm volatile ( + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n" // load 16 YUY2 pixels + "subs %w3, %w3, #16 \n" // 16 pixels = 8 UVs. + MEMACCESS(1) + "st1 {v1.8b}, [%1], #8 \n" // store 8 U. + MEMACCESS(2) + "st1 {v3.8b}, [%2], #8 \n" // store 8 V. + "b.gt 1b \n" + : "+r"(src_yuy2), // %0 + "+r"(dst_u), // %1 + "+r"(dst_v), // %2 + "+r"(width) // %3 + : + : "cc", "memory", "v0", "v1", "v2", "v3" // Clobber List + ); +} + +void UYVYToUV422Row_NEON(const uint8* src_uyvy, uint8* dst_u, uint8* dst_v, + int width) { + asm volatile ( + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n" // load 16 UYVY pixels + "subs %w3, %w3, #16 \n" // 16 pixels = 8 UVs. + MEMACCESS(1) + "st1 {v0.8b}, [%1], #8 \n" // store 8 U. + MEMACCESS(2) + "st1 {v2.8b}, [%2], #8 \n" // store 8 V. + "b.gt 1b \n" + : "+r"(src_uyvy), // %0 + "+r"(dst_u), // %1 + "+r"(dst_v), // %2 + "+r"(width) // %3 + : + : "cc", "memory", "v0", "v1", "v2", "v3" // Clobber List + ); +} + +void YUY2ToUVRow_NEON(const uint8* src_yuy2, int stride_yuy2, + uint8* dst_u, uint8* dst_v, int width) { + const uint8* src_yuy2b = src_yuy2 + stride_yuy2; + asm volatile ( + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n" // load 16 pixels + "subs %w4, %w4, #16 \n" // 16 pixels = 8 UVs. + MEMACCESS(1) + "ld4 {v4.8b,v5.8b,v6.8b,v7.8b}, [%1], #32 \n" // load next row + "urhadd v1.8b, v1.8b, v5.8b \n" // average rows of U + "urhadd v3.8b, v3.8b, v7.8b \n" // average rows of V + MEMACCESS(2) + "st1 {v1.8b}, [%2], #8 \n" // store 8 U. + MEMACCESS(3) + "st1 {v3.8b}, [%3], #8 \n" // store 8 V. + "b.gt 1b \n" + : "+r"(src_yuy2), // %0 + "+r"(src_yuy2b), // %1 + "+r"(dst_u), // %2 + "+r"(dst_v), // %3 + "+r"(width) // %4 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", + "v5", "v6", "v7" // Clobber List + ); +} + +void UYVYToUVRow_NEON(const uint8* src_uyvy, int stride_uyvy, + uint8* dst_u, uint8* dst_v, int width) { + const uint8* src_uyvyb = src_uyvy + stride_uyvy; + asm volatile ( + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n" // load 16 pixels + "subs %w4, %w4, #16 \n" // 16 pixels = 8 UVs. + MEMACCESS(1) + "ld4 {v4.8b,v5.8b,v6.8b,v7.8b}, [%1], #32 \n" // load next row + "urhadd v0.8b, v0.8b, v4.8b \n" // average rows of U + "urhadd v2.8b, v2.8b, v6.8b \n" // average rows of V + MEMACCESS(2) + "st1 {v0.8b}, [%2], #8 \n" // store 8 U. + MEMACCESS(3) + "st1 {v2.8b}, [%3], #8 \n" // store 8 V. + "b.gt 1b \n" + : "+r"(src_uyvy), // %0 + "+r"(src_uyvyb), // %1 + "+r"(dst_u), // %2 + "+r"(dst_v), // %3 + "+r"(width) // %4 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", + "v5", "v6", "v7" // Clobber List + ); +} + +// For BGRAToARGB, ABGRToARGB, RGBAToARGB, and ARGBToRGBA. +void ARGBShuffleRow_NEON(const uint8* src_argb, uint8* dst_argb, + const uint8* shuffler, int width) { + asm volatile ( + MEMACCESS(3) + "ld1 {v2.16b}, [%3] \n" // shuffler + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" // load 4 pixels. + "subs %w2, %w2, #4 \n" // 4 processed per loop + "tbl v1.16b, {v0.16b}, v2.16b \n" // look up 4 pixels + MEMACCESS(1) + "st1 {v1.16b}, [%1], #16 \n" // store 4. + "b.gt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_argb), // %1 + "+r"(width) // %2 + : "r"(shuffler) // %3 + : "cc", "memory", "v0", "v1", "v2" // Clobber List + ); +} + +void I422ToYUY2Row_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_yuy2, int width) { + asm volatile ( + "1: \n" + MEMACCESS(0) + "ld2 {v0.8b, v1.8b}, [%0], #16 \n" // load 16 Ys + "orr v2.8b, v1.8b, v1.8b \n" + MEMACCESS(1) + "ld1 {v1.8b}, [%1], #8 \n" // load 8 Us + MEMACCESS(2) + "ld1 {v3.8b}, [%2], #8 \n" // load 8 Vs + "subs %w4, %w4, #16 \n" // 16 pixels + MEMACCESS(3) + "st4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%3], #32 \n" // Store 16 pixels. + "b.gt 1b \n" + : "+r"(src_y), // %0 + "+r"(src_u), // %1 + "+r"(src_v), // %2 + "+r"(dst_yuy2), // %3 + "+r"(width) // %4 + : + : "cc", "memory", "v0", "v1", "v2", "v3" + ); +} + +void I422ToUYVYRow_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_uyvy, int width) { + asm volatile ( + "1: \n" + MEMACCESS(0) + "ld2 {v1.8b,v2.8b}, [%0], #16 \n" // load 16 Ys + "orr v3.8b, v2.8b, v2.8b \n" + MEMACCESS(1) + "ld1 {v0.8b}, [%1], #8 \n" // load 8 Us + MEMACCESS(2) + "ld1 {v2.8b}, [%2], #8 \n" // load 8 Vs + "subs %w4, %w4, #16 \n" // 16 pixels + MEMACCESS(3) + "st4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%3], #32 \n" // Store 16 pixels. + "b.gt 1b \n" + : "+r"(src_y), // %0 + "+r"(src_u), // %1 + "+r"(src_v), // %2 + "+r"(dst_uyvy), // %3 + "+r"(width) // %4 + : + : "cc", "memory", "v0", "v1", "v2", "v3" + ); +} + +void ARGBToRGB565Row_NEON(const uint8* src_argb, uint8* dst_rgb565, int width) { + asm volatile ( + "1: \n" + MEMACCESS(0) + "ld4 {v20.8b,v21.8b,v22.8b,v23.8b}, [%0], #32 \n" // load 8 pixels + "subs %w2, %w2, #8 \n" // 8 processed per loop. + ARGBTORGB565 + MEMACCESS(1) + "st1 {v0.16b}, [%1], #16 \n" // store 8 pixels RGB565. + "b.gt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_rgb565), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v20", "v21", "v22", "v23" + ); +} + +void ARGBToRGB565DitherRow_NEON(const uint8* src_argb, uint8* dst_rgb, + const uint32 dither4, int width) { + asm volatile ( + "dup v1.4s, %w2 \n" // dither4 + "1: \n" + MEMACCESS(1) + "ld4 {v20.8b,v21.8b,v22.8b,v23.8b}, [%1], #32 \n" // load 8 pixels + "subs %w3, %w3, #8 \n" // 8 processed per loop. + "uqadd v20.8b, v20.8b, v1.8b \n" + "uqadd v21.8b, v21.8b, v1.8b \n" + "uqadd v22.8b, v22.8b, v1.8b \n" + ARGBTORGB565 + MEMACCESS(0) + "st1 {v0.16b}, [%0], #16 \n" // store 8 pixels RGB565. + "b.gt 1b \n" + : "+r"(dst_rgb) // %0 + : "r"(src_argb), // %1 + "r"(dither4), // %2 + "r"(width) // %3 + : "cc", "memory", "v0", "v1", "v20", "v21", "v22", "v23" + ); +} + +void ARGBToARGB1555Row_NEON(const uint8* src_argb, uint8* dst_argb1555, + int width) { + asm volatile ( + "1: \n" + MEMACCESS(0) + "ld4 {v20.8b,v21.8b,v22.8b,v23.8b}, [%0], #32 \n" // load 8 pixels + "subs %w2, %w2, #8 \n" // 8 processed per loop. + ARGBTOARGB1555 + MEMACCESS(1) + "st1 {v0.16b}, [%1], #16 \n" // store 8 pixels ARGB1555. + "b.gt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_argb1555), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v20", "v21", "v22", "v23" + ); +} + +void ARGBToARGB4444Row_NEON(const uint8* src_argb, uint8* dst_argb4444, + int width) { + asm volatile ( + "movi v4.16b, #0x0f \n" // bits to clear with vbic. + "1: \n" + MEMACCESS(0) + "ld4 {v20.8b,v21.8b,v22.8b,v23.8b}, [%0], #32 \n" // load 8 pixels + "subs %w2, %w2, #8 \n" // 8 processed per loop. + ARGBTOARGB4444 + MEMACCESS(1) + "st1 {v0.16b}, [%1], #16 \n" // store 8 pixels ARGB4444. + "b.gt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_argb4444), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v4", "v20", "v21", "v22", "v23" + ); +} + +void ARGBToYRow_NEON(const uint8* src_argb, uint8* dst_y, int width) { + asm volatile ( + "movi v4.8b, #13 \n" // B * 0.1016 coefficient + "movi v5.8b, #65 \n" // G * 0.5078 coefficient + "movi v6.8b, #33 \n" // R * 0.2578 coefficient + "movi v7.8b, #16 \n" // Add 16 constant + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n" // load 8 ARGB pixels. + "subs %w2, %w2, #8 \n" // 8 processed per loop. + "umull v3.8h, v0.8b, v4.8b \n" // B + "umlal v3.8h, v1.8b, v5.8b \n" // G + "umlal v3.8h, v2.8b, v6.8b \n" // R + "sqrshrun v0.8b, v3.8h, #7 \n" // 16 bit to 8 bit Y + "uqadd v0.8b, v0.8b, v7.8b \n" + MEMACCESS(1) + "st1 {v0.8b}, [%1], #8 \n" // store 8 pixels Y. + "b.gt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_y), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7" + ); +} + +void ARGBExtractAlphaRow_NEON(const uint8* src_argb, uint8* dst_a, int width) { + asm volatile ( + "1: \n" + MEMACCESS(0) + "ld4 {v0.16b,v1.16b,v2.16b,v3.16b}, [%0], #64 \n" // load row 16 pixels + "subs %w2, %w2, #16 \n" // 16 processed per loop + MEMACCESS(1) + "st1 {v3.16b}, [%1], #16 \n" // store 16 A's. + "b.gt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_a), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3" // Clobber List + ); +} + +void ARGBToYJRow_NEON(const uint8* src_argb, uint8* dst_y, int width) { + asm volatile ( + "movi v4.8b, #15 \n" // B * 0.11400 coefficient + "movi v5.8b, #75 \n" // G * 0.58700 coefficient + "movi v6.8b, #38 \n" // R * 0.29900 coefficient + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n" // load 8 ARGB pixels. + "subs %w2, %w2, #8 \n" // 8 processed per loop. + "umull v3.8h, v0.8b, v4.8b \n" // B + "umlal v3.8h, v1.8b, v5.8b \n" // G + "umlal v3.8h, v2.8b, v6.8b \n" // R + "sqrshrun v0.8b, v3.8h, #7 \n" // 15 bit to 8 bit Y + MEMACCESS(1) + "st1 {v0.8b}, [%1], #8 \n" // store 8 pixels Y. + "b.gt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_y), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6" + ); +} + +// 8x1 pixels. +void ARGBToUV444Row_NEON(const uint8* src_argb, uint8* dst_u, uint8* dst_v, + int width) { + asm volatile ( + "movi v24.8b, #112 \n" // UB / VR 0.875 coefficient + "movi v25.8b, #74 \n" // UG -0.5781 coefficient + "movi v26.8b, #38 \n" // UR -0.2969 coefficient + "movi v27.8b, #18 \n" // VB -0.1406 coefficient + "movi v28.8b, #94 \n" // VG -0.7344 coefficient + "movi v29.16b,#0x80 \n" // 128.5 + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n" // load 8 ARGB pixels. + "subs %w3, %w3, #8 \n" // 8 processed per loop. + "umull v4.8h, v0.8b, v24.8b \n" // B + "umlsl v4.8h, v1.8b, v25.8b \n" // G + "umlsl v4.8h, v2.8b, v26.8b \n" // R + "add v4.8h, v4.8h, v29.8h \n" // +128 -> unsigned + + "umull v3.8h, v2.8b, v24.8b \n" // R + "umlsl v3.8h, v1.8b, v28.8b \n" // G + "umlsl v3.8h, v0.8b, v27.8b \n" // B + "add v3.8h, v3.8h, v29.8h \n" // +128 -> unsigned + + "uqshrn v0.8b, v4.8h, #8 \n" // 16 bit to 8 bit U + "uqshrn v1.8b, v3.8h, #8 \n" // 16 bit to 8 bit V + + MEMACCESS(1) + "st1 {v0.8b}, [%1], #8 \n" // store 8 pixels U. + MEMACCESS(2) + "st1 {v1.8b}, [%2], #8 \n" // store 8 pixels V. + "b.gt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_u), // %1 + "+r"(dst_v), // %2 + "+r"(width) // %3 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", + "v24", "v25", "v26", "v27", "v28", "v29" + ); +} + +#define RGBTOUV_SETUP_REG \ + "movi v20.8h, #56, lsl #0 \n" /* UB/VR coefficient (0.875) / 2 */ \ + "movi v21.8h, #37, lsl #0 \n" /* UG coefficient (-0.5781) / 2 */ \ + "movi v22.8h, #19, lsl #0 \n" /* UR coefficient (-0.2969) / 2 */ \ + "movi v23.8h, #9, lsl #0 \n" /* VB coefficient (-0.1406) / 2 */ \ + "movi v24.8h, #47, lsl #0 \n" /* VG coefficient (-0.7344) / 2 */ \ + "movi v25.16b, #0x80 \n" /* 128.5 (0x8080 in 16-bit) */ + +// 32x1 pixels -> 8x1. width is number of argb pixels. e.g. 32. +void ARGBToUV411Row_NEON(const uint8* src_argb, uint8* dst_u, uint8* dst_v, + int width) { + asm volatile ( + RGBTOUV_SETUP_REG + "1: \n" + MEMACCESS(0) + "ld4 {v0.16b,v1.16b,v2.16b,v3.16b}, [%0], #64 \n" // load 16 pixels. + "uaddlp v0.8h, v0.16b \n" // B 16 bytes -> 8 shorts. + "uaddlp v1.8h, v1.16b \n" // G 16 bytes -> 8 shorts. + "uaddlp v2.8h, v2.16b \n" // R 16 bytes -> 8 shorts. + MEMACCESS(0) + "ld4 {v4.16b,v5.16b,v6.16b,v7.16b}, [%0], #64 \n" // load next 16. + "uaddlp v4.8h, v4.16b \n" // B 16 bytes -> 8 shorts. + "uaddlp v5.8h, v5.16b \n" // G 16 bytes -> 8 shorts. + "uaddlp v6.8h, v6.16b \n" // R 16 bytes -> 8 shorts. + + "addp v0.8h, v0.8h, v4.8h \n" // B 16 shorts -> 8 shorts. + "addp v1.8h, v1.8h, v5.8h \n" // G 16 shorts -> 8 shorts. + "addp v2.8h, v2.8h, v6.8h \n" // R 16 shorts -> 8 shorts. + + "urshr v0.8h, v0.8h, #1 \n" // 2x average + "urshr v1.8h, v1.8h, #1 \n" + "urshr v2.8h, v2.8h, #1 \n" + + "subs %w3, %w3, #32 \n" // 32 processed per loop. + "mul v3.8h, v0.8h, v20.8h \n" // B + "mls v3.8h, v1.8h, v21.8h \n" // G + "mls v3.8h, v2.8h, v22.8h \n" // R + "add v3.8h, v3.8h, v25.8h \n" // +128 -> unsigned + "mul v4.8h, v2.8h, v20.8h \n" // R + "mls v4.8h, v1.8h, v24.8h \n" // G + "mls v4.8h, v0.8h, v23.8h \n" // B + "add v4.8h, v4.8h, v25.8h \n" // +128 -> unsigned + "uqshrn v0.8b, v3.8h, #8 \n" // 16 bit to 8 bit U + "uqshrn v1.8b, v4.8h, #8 \n" // 16 bit to 8 bit V + MEMACCESS(1) + "st1 {v0.8b}, [%1], #8 \n" // store 8 pixels U. + MEMACCESS(2) + "st1 {v1.8b}, [%2], #8 \n" // store 8 pixels V. + "b.gt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_u), // %1 + "+r"(dst_v), // %2 + "+r"(width) // %3 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", + "v20", "v21", "v22", "v23", "v24", "v25" + ); +} + +// 16x2 pixels -> 8x1. width is number of argb pixels. e.g. 16. +#define RGBTOUV(QB, QG, QR) \ + "mul v3.8h, " #QB ",v20.8h \n" /* B */ \ + "mul v4.8h, " #QR ",v20.8h \n" /* R */ \ + "mls v3.8h, " #QG ",v21.8h \n" /* G */ \ + "mls v4.8h, " #QG ",v24.8h \n" /* G */ \ + "mls v3.8h, " #QR ",v22.8h \n" /* R */ \ + "mls v4.8h, " #QB ",v23.8h \n" /* B */ \ + "add v3.8h, v3.8h, v25.8h \n" /* +128 -> unsigned */ \ + "add v4.8h, v4.8h, v25.8h \n" /* +128 -> unsigned */ \ + "uqshrn v0.8b, v3.8h, #8 \n" /* 16 bit to 8 bit U */ \ + "uqshrn v1.8b, v4.8h, #8 \n" /* 16 bit to 8 bit V */ + +// TODO(fbarchard): Consider vhadd vertical, then vpaddl horizontal, avoid shr. +// TODO(fbarchard): consider ptrdiff_t for all strides. + +void ARGBToUVRow_NEON(const uint8* src_argb, int src_stride_argb, + uint8* dst_u, uint8* dst_v, int width) { + const uint8* src_argb_1 = src_argb + src_stride_argb; + asm volatile ( + RGBTOUV_SETUP_REG + "1: \n" + MEMACCESS(0) + "ld4 {v0.16b,v1.16b,v2.16b,v3.16b}, [%0], #64 \n" // load 16 pixels. + "uaddlp v0.8h, v0.16b \n" // B 16 bytes -> 8 shorts. + "uaddlp v1.8h, v1.16b \n" // G 16 bytes -> 8 shorts. + "uaddlp v2.8h, v2.16b \n" // R 16 bytes -> 8 shorts. + + MEMACCESS(1) + "ld4 {v4.16b,v5.16b,v6.16b,v7.16b}, [%1], #64 \n" // load next 16 + "uadalp v0.8h, v4.16b \n" // B 16 bytes -> 8 shorts. + "uadalp v1.8h, v5.16b \n" // G 16 bytes -> 8 shorts. + "uadalp v2.8h, v6.16b \n" // R 16 bytes -> 8 shorts. + + "urshr v0.8h, v0.8h, #1 \n" // 2x average + "urshr v1.8h, v1.8h, #1 \n" + "urshr v2.8h, v2.8h, #1 \n" + + "subs %w4, %w4, #16 \n" // 32 processed per loop. + RGBTOUV(v0.8h, v1.8h, v2.8h) + MEMACCESS(2) + "st1 {v0.8b}, [%2], #8 \n" // store 8 pixels U. + MEMACCESS(3) + "st1 {v1.8b}, [%3], #8 \n" // store 8 pixels V. + "b.gt 1b \n" + : "+r"(src_argb), // %0 + "+r"(src_argb_1), // %1 + "+r"(dst_u), // %2 + "+r"(dst_v), // %3 + "+r"(width) // %4 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", + "v20", "v21", "v22", "v23", "v24", "v25" + ); +} + +// TODO(fbarchard): Subsample match C code. +void ARGBToUVJRow_NEON(const uint8* src_argb, int src_stride_argb, + uint8* dst_u, uint8* dst_v, int width) { + const uint8* src_argb_1 = src_argb + src_stride_argb; + asm volatile ( + "movi v20.8h, #63, lsl #0 \n" // UB/VR coeff (0.500) / 2 + "movi v21.8h, #42, lsl #0 \n" // UG coeff (-0.33126) / 2 + "movi v22.8h, #21, lsl #0 \n" // UR coeff (-0.16874) / 2 + "movi v23.8h, #10, lsl #0 \n" // VB coeff (-0.08131) / 2 + "movi v24.8h, #53, lsl #0 \n" // VG coeff (-0.41869) / 2 + "movi v25.16b, #0x80 \n" // 128.5 (0x8080 in 16-bit) + "1: \n" + MEMACCESS(0) + "ld4 {v0.16b,v1.16b,v2.16b,v3.16b}, [%0], #64 \n" // load 16 pixels. + "uaddlp v0.8h, v0.16b \n" // B 16 bytes -> 8 shorts. + "uaddlp v1.8h, v1.16b \n" // G 16 bytes -> 8 shorts. + "uaddlp v2.8h, v2.16b \n" // R 16 bytes -> 8 shorts. + MEMACCESS(1) + "ld4 {v4.16b,v5.16b,v6.16b,v7.16b}, [%1], #64 \n" // load next 16 + "uadalp v0.8h, v4.16b \n" // B 16 bytes -> 8 shorts. + "uadalp v1.8h, v5.16b \n" // G 16 bytes -> 8 shorts. + "uadalp v2.8h, v6.16b \n" // R 16 bytes -> 8 shorts. + + "urshr v0.8h, v0.8h, #1 \n" // 2x average + "urshr v1.8h, v1.8h, #1 \n" + "urshr v2.8h, v2.8h, #1 \n" + + "subs %w4, %w4, #16 \n" // 32 processed per loop. + RGBTOUV(v0.8h, v1.8h, v2.8h) + MEMACCESS(2) + "st1 {v0.8b}, [%2], #8 \n" // store 8 pixels U. + MEMACCESS(3) + "st1 {v1.8b}, [%3], #8 \n" // store 8 pixels V. + "b.gt 1b \n" + : "+r"(src_argb), // %0 + "+r"(src_argb_1), // %1 + "+r"(dst_u), // %2 + "+r"(dst_v), // %3 + "+r"(width) // %4 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", + "v20", "v21", "v22", "v23", "v24", "v25" + ); +} + +void BGRAToUVRow_NEON(const uint8* src_bgra, int src_stride_bgra, + uint8* dst_u, uint8* dst_v, int width) { + const uint8* src_bgra_1 = src_bgra + src_stride_bgra; + asm volatile ( + RGBTOUV_SETUP_REG + "1: \n" + MEMACCESS(0) + "ld4 {v0.16b,v1.16b,v2.16b,v3.16b}, [%0], #64 \n" // load 16 pixels. + "uaddlp v0.8h, v3.16b \n" // B 16 bytes -> 8 shorts. + "uaddlp v3.8h, v2.16b \n" // G 16 bytes -> 8 shorts. + "uaddlp v2.8h, v1.16b \n" // R 16 bytes -> 8 shorts. + MEMACCESS(1) + "ld4 {v4.16b,v5.16b,v6.16b,v7.16b}, [%1], #64 \n" // load 16 more + "uadalp v0.8h, v7.16b \n" // B 16 bytes -> 8 shorts. + "uadalp v3.8h, v6.16b \n" // G 16 bytes -> 8 shorts. + "uadalp v2.8h, v5.16b \n" // R 16 bytes -> 8 shorts. + + "urshr v0.8h, v0.8h, #1 \n" // 2x average + "urshr v1.8h, v3.8h, #1 \n" + "urshr v2.8h, v2.8h, #1 \n" + + "subs %w4, %w4, #16 \n" // 32 processed per loop. + RGBTOUV(v0.8h, v1.8h, v2.8h) + MEMACCESS(2) + "st1 {v0.8b}, [%2], #8 \n" // store 8 pixels U. + MEMACCESS(3) + "st1 {v1.8b}, [%3], #8 \n" // store 8 pixels V. + "b.gt 1b \n" + : "+r"(src_bgra), // %0 + "+r"(src_bgra_1), // %1 + "+r"(dst_u), // %2 + "+r"(dst_v), // %3 + "+r"(width) // %4 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", + "v20", "v21", "v22", "v23", "v24", "v25" + ); +} + +void ABGRToUVRow_NEON(const uint8* src_abgr, int src_stride_abgr, + uint8* dst_u, uint8* dst_v, int width) { + const uint8* src_abgr_1 = src_abgr + src_stride_abgr; + asm volatile ( + RGBTOUV_SETUP_REG + "1: \n" + MEMACCESS(0) + "ld4 {v0.16b,v1.16b,v2.16b,v3.16b}, [%0], #64 \n" // load 16 pixels. + "uaddlp v3.8h, v2.16b \n" // B 16 bytes -> 8 shorts. + "uaddlp v2.8h, v1.16b \n" // G 16 bytes -> 8 shorts. + "uaddlp v1.8h, v0.16b \n" // R 16 bytes -> 8 shorts. + MEMACCESS(1) + "ld4 {v4.16b,v5.16b,v6.16b,v7.16b}, [%1], #64 \n" // load 16 more. + "uadalp v3.8h, v6.16b \n" // B 16 bytes -> 8 shorts. + "uadalp v2.8h, v5.16b \n" // G 16 bytes -> 8 shorts. + "uadalp v1.8h, v4.16b \n" // R 16 bytes -> 8 shorts. + + "urshr v0.8h, v3.8h, #1 \n" // 2x average + "urshr v2.8h, v2.8h, #1 \n" + "urshr v1.8h, v1.8h, #1 \n" + + "subs %w4, %w4, #16 \n" // 32 processed per loop. + RGBTOUV(v0.8h, v2.8h, v1.8h) + MEMACCESS(2) + "st1 {v0.8b}, [%2], #8 \n" // store 8 pixels U. + MEMACCESS(3) + "st1 {v1.8b}, [%3], #8 \n" // store 8 pixels V. + "b.gt 1b \n" + : "+r"(src_abgr), // %0 + "+r"(src_abgr_1), // %1 + "+r"(dst_u), // %2 + "+r"(dst_v), // %3 + "+r"(width) // %4 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", + "v20", "v21", "v22", "v23", "v24", "v25" + ); +} + +void RGBAToUVRow_NEON(const uint8* src_rgba, int src_stride_rgba, + uint8* dst_u, uint8* dst_v, int width) { + const uint8* src_rgba_1 = src_rgba + src_stride_rgba; + asm volatile ( + RGBTOUV_SETUP_REG + "1: \n" + MEMACCESS(0) + "ld4 {v0.16b,v1.16b,v2.16b,v3.16b}, [%0], #64 \n" // load 16 pixels. + "uaddlp v0.8h, v1.16b \n" // B 16 bytes -> 8 shorts. + "uaddlp v1.8h, v2.16b \n" // G 16 bytes -> 8 shorts. + "uaddlp v2.8h, v3.16b \n" // R 16 bytes -> 8 shorts. + MEMACCESS(1) + "ld4 {v4.16b,v5.16b,v6.16b,v7.16b}, [%1], #64 \n" // load 16 more. + "uadalp v0.8h, v5.16b \n" // B 16 bytes -> 8 shorts. + "uadalp v1.8h, v6.16b \n" // G 16 bytes -> 8 shorts. + "uadalp v2.8h, v7.16b \n" // R 16 bytes -> 8 shorts. + + "urshr v0.8h, v0.8h, #1 \n" // 2x average + "urshr v1.8h, v1.8h, #1 \n" + "urshr v2.8h, v2.8h, #1 \n" + + "subs %w4, %w4, #16 \n" // 32 processed per loop. + RGBTOUV(v0.8h, v1.8h, v2.8h) + MEMACCESS(2) + "st1 {v0.8b}, [%2], #8 \n" // store 8 pixels U. + MEMACCESS(3) + "st1 {v1.8b}, [%3], #8 \n" // store 8 pixels V. + "b.gt 1b \n" + : "+r"(src_rgba), // %0 + "+r"(src_rgba_1), // %1 + "+r"(dst_u), // %2 + "+r"(dst_v), // %3 + "+r"(width) // %4 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", + "v20", "v21", "v22", "v23", "v24", "v25" + ); +} + +void RGB24ToUVRow_NEON(const uint8* src_rgb24, int src_stride_rgb24, + uint8* dst_u, uint8* dst_v, int width) { + const uint8* src_rgb24_1 = src_rgb24 + src_stride_rgb24; + asm volatile ( + RGBTOUV_SETUP_REG + "1: \n" + MEMACCESS(0) + "ld3 {v0.16b,v1.16b,v2.16b}, [%0], #48 \n" // load 16 pixels. + "uaddlp v0.8h, v0.16b \n" // B 16 bytes -> 8 shorts. + "uaddlp v1.8h, v1.16b \n" // G 16 bytes -> 8 shorts. + "uaddlp v2.8h, v2.16b \n" // R 16 bytes -> 8 shorts. + MEMACCESS(1) + "ld3 {v4.16b,v5.16b,v6.16b}, [%1], #48 \n" // load 16 more. + "uadalp v0.8h, v4.16b \n" // B 16 bytes -> 8 shorts. + "uadalp v1.8h, v5.16b \n" // G 16 bytes -> 8 shorts. + "uadalp v2.8h, v6.16b \n" // R 16 bytes -> 8 shorts. + + "urshr v0.8h, v0.8h, #1 \n" // 2x average + "urshr v1.8h, v1.8h, #1 \n" + "urshr v2.8h, v2.8h, #1 \n" + + "subs %w4, %w4, #16 \n" // 32 processed per loop. + RGBTOUV(v0.8h, v1.8h, v2.8h) + MEMACCESS(2) + "st1 {v0.8b}, [%2], #8 \n" // store 8 pixels U. + MEMACCESS(3) + "st1 {v1.8b}, [%3], #8 \n" // store 8 pixels V. + "b.gt 1b \n" + : "+r"(src_rgb24), // %0 + "+r"(src_rgb24_1), // %1 + "+r"(dst_u), // %2 + "+r"(dst_v), // %3 + "+r"(width) // %4 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", + "v20", "v21", "v22", "v23", "v24", "v25" + ); +} + +void RAWToUVRow_NEON(const uint8* src_raw, int src_stride_raw, + uint8* dst_u, uint8* dst_v, int width) { + const uint8* src_raw_1 = src_raw + src_stride_raw; + asm volatile ( + RGBTOUV_SETUP_REG + "1: \n" + MEMACCESS(0) + "ld3 {v0.16b,v1.16b,v2.16b}, [%0], #48 \n" // load 8 RAW pixels. + "uaddlp v2.8h, v2.16b \n" // B 16 bytes -> 8 shorts. + "uaddlp v1.8h, v1.16b \n" // G 16 bytes -> 8 shorts. + "uaddlp v0.8h, v0.16b \n" // R 16 bytes -> 8 shorts. + MEMACCESS(1) + "ld3 {v4.16b,v5.16b,v6.16b}, [%1], #48 \n" // load 8 more RAW pixels + "uadalp v2.8h, v6.16b \n" // B 16 bytes -> 8 shorts. + "uadalp v1.8h, v5.16b \n" // G 16 bytes -> 8 shorts. + "uadalp v0.8h, v4.16b \n" // R 16 bytes -> 8 shorts. + + "urshr v2.8h, v2.8h, #1 \n" // 2x average + "urshr v1.8h, v1.8h, #1 \n" + "urshr v0.8h, v0.8h, #1 \n" + + "subs %w4, %w4, #16 \n" // 32 processed per loop. + RGBTOUV(v2.8h, v1.8h, v0.8h) + MEMACCESS(2) + "st1 {v0.8b}, [%2], #8 \n" // store 8 pixels U. + MEMACCESS(3) + "st1 {v1.8b}, [%3], #8 \n" // store 8 pixels V. + "b.gt 1b \n" + : "+r"(src_raw), // %0 + "+r"(src_raw_1), // %1 + "+r"(dst_u), // %2 + "+r"(dst_v), // %3 + "+r"(width) // %4 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", + "v20", "v21", "v22", "v23", "v24", "v25" + ); +} + +// 16x2 pixels -> 8x1. width 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 width) { + const uint8* src_rgb565_1 = src_rgb565 + src_stride_rgb565; + asm volatile ( + "movi v22.8h, #56, lsl #0 \n" // UB / VR coeff (0.875) / 2 + "movi v23.8h, #37, lsl #0 \n" // UG coeff (-0.5781) / 2 + "movi v24.8h, #19, lsl #0 \n" // UR coeff (-0.2969) / 2 + "movi v25.8h, #9 , lsl #0 \n" // VB coeff (-0.1406) / 2 + "movi v26.8h, #47, lsl #0 \n" // VG coeff (-0.7344) / 2 + "movi v27.16b, #0x80 \n" // 128.5 (0x8080 in 16-bit) + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" // load 8 RGB565 pixels. + RGB565TOARGB + "uaddlp v16.4h, v0.8b \n" // B 8 bytes -> 4 shorts. + "uaddlp v18.4h, v1.8b \n" // G 8 bytes -> 4 shorts. + "uaddlp v20.4h, v2.8b \n" // R 8 bytes -> 4 shorts. + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" // next 8 RGB565 pixels. + RGB565TOARGB + "uaddlp v17.4h, v0.8b \n" // B 8 bytes -> 4 shorts. + "uaddlp v19.4h, v1.8b \n" // G 8 bytes -> 4 shorts. + "uaddlp v21.4h, v2.8b \n" // R 8 bytes -> 4 shorts. + + MEMACCESS(1) + "ld1 {v0.16b}, [%1], #16 \n" // load 8 RGB565 pixels. + RGB565TOARGB + "uadalp v16.4h, v0.8b \n" // B 8 bytes -> 4 shorts. + "uadalp v18.4h, v1.8b \n" // G 8 bytes -> 4 shorts. + "uadalp v20.4h, v2.8b \n" // R 8 bytes -> 4 shorts. + MEMACCESS(1) + "ld1 {v0.16b}, [%1], #16 \n" // next 8 RGB565 pixels. + RGB565TOARGB + "uadalp v17.4h, v0.8b \n" // B 8 bytes -> 4 shorts. + "uadalp v19.4h, v1.8b \n" // G 8 bytes -> 4 shorts. + "uadalp v21.4h, v2.8b \n" // R 8 bytes -> 4 shorts. + + "ins v16.D[1], v17.D[0] \n" + "ins v18.D[1], v19.D[0] \n" + "ins v20.D[1], v21.D[0] \n" + + "urshr v4.8h, v16.8h, #1 \n" // 2x average + "urshr v5.8h, v18.8h, #1 \n" + "urshr v6.8h, v20.8h, #1 \n" + + "subs %w4, %w4, #16 \n" // 16 processed per loop. + "mul v16.8h, v4.8h, v22.8h \n" // B + "mls v16.8h, v5.8h, v23.8h \n" // G + "mls v16.8h, v6.8h, v24.8h \n" // R + "add v16.8h, v16.8h, v27.8h \n" // +128 -> unsigned + "mul v17.8h, v6.8h, v22.8h \n" // R + "mls v17.8h, v5.8h, v26.8h \n" // G + "mls v17.8h, v4.8h, v25.8h \n" // B + "add v17.8h, v17.8h, v27.8h \n" // +128 -> unsigned + "uqshrn v0.8b, v16.8h, #8 \n" // 16 bit to 8 bit U + "uqshrn v1.8b, v17.8h, #8 \n" // 16 bit to 8 bit V + MEMACCESS(2) + "st1 {v0.8b}, [%2], #8 \n" // store 8 pixels U. + MEMACCESS(3) + "st1 {v1.8b}, [%3], #8 \n" // store 8 pixels V. + "b.gt 1b \n" + : "+r"(src_rgb565), // %0 + "+r"(src_rgb565_1), // %1 + "+r"(dst_u), // %2 + "+r"(dst_v), // %3 + "+r"(width) // %4 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", + "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", "v24", + "v25", "v26", "v27" + ); +} + +// 16x2 pixels -> 8x1. width 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 width) { + const uint8* src_argb1555_1 = src_argb1555 + src_stride_argb1555; + asm volatile ( + RGBTOUV_SETUP_REG + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" // load 8 ARGB1555 pixels. + RGB555TOARGB + "uaddlp v16.4h, v0.8b \n" // B 8 bytes -> 4 shorts. + "uaddlp v17.4h, v1.8b \n" // G 8 bytes -> 4 shorts. + "uaddlp v18.4h, v2.8b \n" // R 8 bytes -> 4 shorts. + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" // next 8 ARGB1555 pixels. + RGB555TOARGB + "uaddlp v26.4h, v0.8b \n" // B 8 bytes -> 4 shorts. + "uaddlp v27.4h, v1.8b \n" // G 8 bytes -> 4 shorts. + "uaddlp v28.4h, v2.8b \n" // R 8 bytes -> 4 shorts. + + MEMACCESS(1) + "ld1 {v0.16b}, [%1], #16 \n" // load 8 ARGB1555 pixels. + RGB555TOARGB + "uadalp v16.4h, v0.8b \n" // B 8 bytes -> 4 shorts. + "uadalp v17.4h, v1.8b \n" // G 8 bytes -> 4 shorts. + "uadalp v18.4h, v2.8b \n" // R 8 bytes -> 4 shorts. + MEMACCESS(1) + "ld1 {v0.16b}, [%1], #16 \n" // next 8 ARGB1555 pixels. + RGB555TOARGB + "uadalp v26.4h, v0.8b \n" // B 8 bytes -> 4 shorts. + "uadalp v27.4h, v1.8b \n" // G 8 bytes -> 4 shorts. + "uadalp v28.4h, v2.8b \n" // R 8 bytes -> 4 shorts. + + "ins v16.D[1], v26.D[0] \n" + "ins v17.D[1], v27.D[0] \n" + "ins v18.D[1], v28.D[0] \n" + + "urshr v4.8h, v16.8h, #1 \n" // 2x average + "urshr v5.8h, v17.8h, #1 \n" + "urshr v6.8h, v18.8h, #1 \n" + + "subs %w4, %w4, #16 \n" // 16 processed per loop. + "mul v2.8h, v4.8h, v20.8h \n" // B + "mls v2.8h, v5.8h, v21.8h \n" // G + "mls v2.8h, v6.8h, v22.8h \n" // R + "add v2.8h, v2.8h, v25.8h \n" // +128 -> unsigned + "mul v3.8h, v6.8h, v20.8h \n" // R + "mls v3.8h, v5.8h, v24.8h \n" // G + "mls v3.8h, v4.8h, v23.8h \n" // B + "add v3.8h, v3.8h, v25.8h \n" // +128 -> unsigned + "uqshrn v0.8b, v2.8h, #8 \n" // 16 bit to 8 bit U + "uqshrn v1.8b, v3.8h, #8 \n" // 16 bit to 8 bit V + MEMACCESS(2) + "st1 {v0.8b}, [%2], #8 \n" // store 8 pixels U. + MEMACCESS(3) + "st1 {v1.8b}, [%3], #8 \n" // store 8 pixels V. + "b.gt 1b \n" + : "+r"(src_argb1555), // %0 + "+r"(src_argb1555_1), // %1 + "+r"(dst_u), // %2 + "+r"(dst_v), // %3 + "+r"(width) // %4 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", + "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25", + "v26", "v27", "v28" + ); +} + +// 16x2 pixels -> 8x1. width 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 width) { + const uint8* src_argb4444_1 = src_argb4444 + src_stride_argb4444; + asm volatile ( + RGBTOUV_SETUP_REG + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" // load 8 ARGB4444 pixels. + ARGB4444TOARGB + "uaddlp v16.4h, v0.8b \n" // B 8 bytes -> 4 shorts. + "uaddlp v17.4h, v1.8b \n" // G 8 bytes -> 4 shorts. + "uaddlp v18.4h, v2.8b \n" // R 8 bytes -> 4 shorts. + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" // next 8 ARGB4444 pixels. + ARGB4444TOARGB + "uaddlp v26.4h, v0.8b \n" // B 8 bytes -> 4 shorts. + "uaddlp v27.4h, v1.8b \n" // G 8 bytes -> 4 shorts. + "uaddlp v28.4h, v2.8b \n" // R 8 bytes -> 4 shorts. + + MEMACCESS(1) + "ld1 {v0.16b}, [%1], #16 \n" // load 8 ARGB4444 pixels. + ARGB4444TOARGB + "uadalp v16.4h, v0.8b \n" // B 8 bytes -> 4 shorts. + "uadalp v17.4h, v1.8b \n" // G 8 bytes -> 4 shorts. + "uadalp v18.4h, v2.8b \n" // R 8 bytes -> 4 shorts. + MEMACCESS(1) + "ld1 {v0.16b}, [%1], #16 \n" // next 8 ARGB4444 pixels. + ARGB4444TOARGB + "uadalp v26.4h, v0.8b \n" // B 8 bytes -> 4 shorts. + "uadalp v27.4h, v1.8b \n" // G 8 bytes -> 4 shorts. + "uadalp v28.4h, v2.8b \n" // R 8 bytes -> 4 shorts. + + "ins v16.D[1], v26.D[0] \n" + "ins v17.D[1], v27.D[0] \n" + "ins v18.D[1], v28.D[0] \n" + + "urshr v4.8h, v16.8h, #1 \n" // 2x average + "urshr v5.8h, v17.8h, #1 \n" + "urshr v6.8h, v18.8h, #1 \n" + + "subs %w4, %w4, #16 \n" // 16 processed per loop. + "mul v2.8h, v4.8h, v20.8h \n" // B + "mls v2.8h, v5.8h, v21.8h \n" // G + "mls v2.8h, v6.8h, v22.8h \n" // R + "add v2.8h, v2.8h, v25.8h \n" // +128 -> unsigned + "mul v3.8h, v6.8h, v20.8h \n" // R + "mls v3.8h, v5.8h, v24.8h \n" // G + "mls v3.8h, v4.8h, v23.8h \n" // B + "add v3.8h, v3.8h, v25.8h \n" // +128 -> unsigned + "uqshrn v0.8b, v2.8h, #8 \n" // 16 bit to 8 bit U + "uqshrn v1.8b, v3.8h, #8 \n" // 16 bit to 8 bit V + MEMACCESS(2) + "st1 {v0.8b}, [%2], #8 \n" // store 8 pixels U. + MEMACCESS(3) + "st1 {v1.8b}, [%3], #8 \n" // store 8 pixels V. + "b.gt 1b \n" + : "+r"(src_argb4444), // %0 + "+r"(src_argb4444_1), // %1 + "+r"(dst_u), // %2 + "+r"(dst_v), // %3 + "+r"(width) // %4 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", + "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25", + "v26", "v27", "v28" + + ); +} + +void RGB565ToYRow_NEON(const uint8* src_rgb565, uint8* dst_y, int width) { + asm volatile ( + "movi v24.8b, #13 \n" // B * 0.1016 coefficient + "movi v25.8b, #65 \n" // G * 0.5078 coefficient + "movi v26.8b, #33 \n" // R * 0.2578 coefficient + "movi v27.8b, #16 \n" // Add 16 constant + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" // load 8 RGB565 pixels. + "subs %w2, %w2, #8 \n" // 8 processed per loop. + RGB565TOARGB + "umull v3.8h, v0.8b, v24.8b \n" // B + "umlal v3.8h, v1.8b, v25.8b \n" // G + "umlal v3.8h, v2.8b, v26.8b \n" // R + "sqrshrun v0.8b, v3.8h, #7 \n" // 16 bit to 8 bit Y + "uqadd v0.8b, v0.8b, v27.8b \n" + MEMACCESS(1) + "st1 {v0.8b}, [%1], #8 \n" // store 8 pixels Y. + "b.gt 1b \n" + : "+r"(src_rgb565), // %0 + "+r"(dst_y), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v6", + "v24", "v25", "v26", "v27" + ); +} + +void ARGB1555ToYRow_NEON(const uint8* src_argb1555, uint8* dst_y, int width) { + asm volatile ( + "movi v4.8b, #13 \n" // B * 0.1016 coefficient + "movi v5.8b, #65 \n" // G * 0.5078 coefficient + "movi v6.8b, #33 \n" // R * 0.2578 coefficient + "movi v7.8b, #16 \n" // Add 16 constant + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" // load 8 ARGB1555 pixels. + "subs %w2, %w2, #8 \n" // 8 processed per loop. + ARGB1555TOARGB + "umull v3.8h, v0.8b, v4.8b \n" // B + "umlal v3.8h, v1.8b, v5.8b \n" // G + "umlal v3.8h, v2.8b, v6.8b \n" // R + "sqrshrun v0.8b, v3.8h, #7 \n" // 16 bit to 8 bit Y + "uqadd v0.8b, v0.8b, v7.8b \n" + MEMACCESS(1) + "st1 {v0.8b}, [%1], #8 \n" // store 8 pixels Y. + "b.gt 1b \n" + : "+r"(src_argb1555), // %0 + "+r"(dst_y), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7" + ); +} + +void ARGB4444ToYRow_NEON(const uint8* src_argb4444, uint8* dst_y, int width) { + asm volatile ( + "movi v24.8b, #13 \n" // B * 0.1016 coefficient + "movi v25.8b, #65 \n" // G * 0.5078 coefficient + "movi v26.8b, #33 \n" // R * 0.2578 coefficient + "movi v27.8b, #16 \n" // Add 16 constant + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" // load 8 ARGB4444 pixels. + "subs %w2, %w2, #8 \n" // 8 processed per loop. + ARGB4444TOARGB + "umull v3.8h, v0.8b, v24.8b \n" // B + "umlal v3.8h, v1.8b, v25.8b \n" // G + "umlal v3.8h, v2.8b, v26.8b \n" // R + "sqrshrun v0.8b, v3.8h, #7 \n" // 16 bit to 8 bit Y + "uqadd v0.8b, v0.8b, v27.8b \n" + MEMACCESS(1) + "st1 {v0.8b}, [%1], #8 \n" // store 8 pixels Y. + "b.gt 1b \n" + : "+r"(src_argb4444), // %0 + "+r"(dst_y), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v24", "v25", "v26", "v27" + ); +} + +void BGRAToYRow_NEON(const uint8* src_bgra, uint8* dst_y, int width) { + asm volatile ( + "movi v4.8b, #33 \n" // R * 0.2578 coefficient + "movi v5.8b, #65 \n" // G * 0.5078 coefficient + "movi v6.8b, #13 \n" // B * 0.1016 coefficient + "movi v7.8b, #16 \n" // Add 16 constant + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n" // load 8 pixels. + "subs %w2, %w2, #8 \n" // 8 processed per loop. + "umull v16.8h, v1.8b, v4.8b \n" // R + "umlal v16.8h, v2.8b, v5.8b \n" // G + "umlal v16.8h, v3.8b, v6.8b \n" // B + "sqrshrun v0.8b, v16.8h, #7 \n" // 16 bit to 8 bit Y + "uqadd v0.8b, v0.8b, v7.8b \n" + MEMACCESS(1) + "st1 {v0.8b}, [%1], #8 \n" // store 8 pixels Y. + "b.gt 1b \n" + : "+r"(src_bgra), // %0 + "+r"(dst_y), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v16" + ); +} + +void ABGRToYRow_NEON(const uint8* src_abgr, uint8* dst_y, int width) { + asm volatile ( + "movi v4.8b, #33 \n" // R * 0.2578 coefficient + "movi v5.8b, #65 \n" // G * 0.5078 coefficient + "movi v6.8b, #13 \n" // B * 0.1016 coefficient + "movi v7.8b, #16 \n" // Add 16 constant + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n" // load 8 pixels. + "subs %w2, %w2, #8 \n" // 8 processed per loop. + "umull v16.8h, v0.8b, v4.8b \n" // R + "umlal v16.8h, v1.8b, v5.8b \n" // G + "umlal v16.8h, v2.8b, v6.8b \n" // B + "sqrshrun v0.8b, v16.8h, #7 \n" // 16 bit to 8 bit Y + "uqadd v0.8b, v0.8b, v7.8b \n" + MEMACCESS(1) + "st1 {v0.8b}, [%1], #8 \n" // store 8 pixels Y. + "b.gt 1b \n" + : "+r"(src_abgr), // %0 + "+r"(dst_y), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v16" + ); +} + +void RGBAToYRow_NEON(const uint8* src_rgba, uint8* dst_y, int width) { + asm volatile ( + "movi v4.8b, #13 \n" // B * 0.1016 coefficient + "movi v5.8b, #65 \n" // G * 0.5078 coefficient + "movi v6.8b, #33 \n" // R * 0.2578 coefficient + "movi v7.8b, #16 \n" // Add 16 constant + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n" // load 8 pixels. + "subs %w2, %w2, #8 \n" // 8 processed per loop. + "umull v16.8h, v1.8b, v4.8b \n" // B + "umlal v16.8h, v2.8b, v5.8b \n" // G + "umlal v16.8h, v3.8b, v6.8b \n" // R + "sqrshrun v0.8b, v16.8h, #7 \n" // 16 bit to 8 bit Y + "uqadd v0.8b, v0.8b, v7.8b \n" + MEMACCESS(1) + "st1 {v0.8b}, [%1], #8 \n" // store 8 pixels Y. + "b.gt 1b \n" + : "+r"(src_rgba), // %0 + "+r"(dst_y), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v16" + ); +} + +void RGB24ToYRow_NEON(const uint8* src_rgb24, uint8* dst_y, int width) { + asm volatile ( + "movi v4.8b, #13 \n" // B * 0.1016 coefficient + "movi v5.8b, #65 \n" // G * 0.5078 coefficient + "movi v6.8b, #33 \n" // R * 0.2578 coefficient + "movi v7.8b, #16 \n" // Add 16 constant + "1: \n" + MEMACCESS(0) + "ld3 {v0.8b,v1.8b,v2.8b}, [%0], #24 \n" // load 8 pixels. + "subs %w2, %w2, #8 \n" // 8 processed per loop. + "umull v16.8h, v0.8b, v4.8b \n" // B + "umlal v16.8h, v1.8b, v5.8b \n" // G + "umlal v16.8h, v2.8b, v6.8b \n" // R + "sqrshrun v0.8b, v16.8h, #7 \n" // 16 bit to 8 bit Y + "uqadd v0.8b, v0.8b, v7.8b \n" + MEMACCESS(1) + "st1 {v0.8b}, [%1], #8 \n" // store 8 pixels Y. + "b.gt 1b \n" + : "+r"(src_rgb24), // %0 + "+r"(dst_y), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v16" + ); +} + +void RAWToYRow_NEON(const uint8* src_raw, uint8* dst_y, int width) { + asm volatile ( + "movi v4.8b, #33 \n" // R * 0.2578 coefficient + "movi v5.8b, #65 \n" // G * 0.5078 coefficient + "movi v6.8b, #13 \n" // B * 0.1016 coefficient + "movi v7.8b, #16 \n" // Add 16 constant + "1: \n" + MEMACCESS(0) + "ld3 {v0.8b,v1.8b,v2.8b}, [%0], #24 \n" // load 8 pixels. + "subs %w2, %w2, #8 \n" // 8 processed per loop. + "umull v16.8h, v0.8b, v4.8b \n" // B + "umlal v16.8h, v1.8b, v5.8b \n" // G + "umlal v16.8h, v2.8b, v6.8b \n" // R + "sqrshrun v0.8b, v16.8h, #7 \n" // 16 bit to 8 bit Y + "uqadd v0.8b, v0.8b, v7.8b \n" + MEMACCESS(1) + "st1 {v0.8b}, [%1], #8 \n" // store 8 pixels Y. + "b.gt 1b \n" + : "+r"(src_raw), // %0 + "+r"(dst_y), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v16" + ); +} + +// 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) { + int y1_fraction = source_y_fraction; + int y0_fraction = 256 - y1_fraction; + const uint8* src_ptr1 = src_ptr + src_stride; + asm volatile ( + "cmp %w4, #0 \n" + "b.eq 100f \n" + "cmp %w4, #128 \n" + "b.eq 50f \n" + + "dup v5.16b, %w4 \n" + "dup v4.16b, %w5 \n" + // General purpose row blend. + "1: \n" + MEMACCESS(1) + "ld1 {v0.16b}, [%1], #16 \n" + MEMACCESS(2) + "ld1 {v1.16b}, [%2], #16 \n" + "subs %w3, %w3, #16 \n" + "umull v2.8h, v0.8b, v4.8b \n" + "umull2 v3.8h, v0.16b, v4.16b \n" + "umlal v2.8h, v1.8b, v5.8b \n" + "umlal2 v3.8h, v1.16b, v5.16b \n" + "rshrn v0.8b, v2.8h, #8 \n" + "rshrn2 v0.16b, v3.8h, #8 \n" + MEMACCESS(0) + "st1 {v0.16b}, [%0], #16 \n" + "b.gt 1b \n" + "b 99f \n" + + // Blend 50 / 50. + "50: \n" + MEMACCESS(1) + "ld1 {v0.16b}, [%1], #16 \n" + MEMACCESS(2) + "ld1 {v1.16b}, [%2], #16 \n" + "subs %w3, %w3, #16 \n" + "urhadd v0.16b, v0.16b, v1.16b \n" + MEMACCESS(0) + "st1 {v0.16b}, [%0], #16 \n" + "b.gt 50b \n" + "b 99f \n" + + // Blend 100 / 0 - Copy row unchanged. + "100: \n" + MEMACCESS(1) + "ld1 {v0.16b}, [%1], #16 \n" + "subs %w3, %w3, #16 \n" + MEMACCESS(0) + "st1 {v0.16b}, [%0], #16 \n" + "b.gt 100b \n" + + "99: \n" + : "+r"(dst_ptr), // %0 + "+r"(src_ptr), // %1 + "+r"(src_ptr1), // %2 + "+r"(dst_width), // %3 + "+r"(y1_fraction), // %4 + "+r"(y0_fraction) // %5 + : + : "cc", "memory", "v0", "v1", "v3", "v4", "v5" + ); +} + +// 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 %w3, %w3, #8 \n" + "b.lt 89f \n" + // Blend 8 pixels. + "8: \n" + MEMACCESS(0) + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n" // load 8 ARGB0 pixels + MEMACCESS(1) + "ld4 {v4.8b,v5.8b,v6.8b,v7.8b}, [%1], #32 \n" // load 8 ARGB1 pixels + "subs %w3, %w3, #8 \n" // 8 processed per loop. + "umull v16.8h, v4.8b, v3.8b \n" // db * a + "umull v17.8h, v5.8b, v3.8b \n" // dg * a + "umull v18.8h, v6.8b, v3.8b \n" // dr * a + "uqrshrn v16.8b, v16.8h, #8 \n" // db >>= 8 + "uqrshrn v17.8b, v17.8h, #8 \n" // dg >>= 8 + "uqrshrn v18.8b, v18.8h, #8 \n" // dr >>= 8 + "uqsub v4.8b, v4.8b, v16.8b \n" // db - (db * a / 256) + "uqsub v5.8b, v5.8b, v17.8b \n" // dg - (dg * a / 256) + "uqsub v6.8b, v6.8b, v18.8b \n" // dr - (dr * a / 256) + "uqadd v0.8b, v0.8b, v4.8b \n" // + sb + "uqadd v1.8b, v1.8b, v5.8b \n" // + sg + "uqadd v2.8b, v2.8b, v6.8b \n" // + sr + "movi v3.8b, #255 \n" // a = 255 + MEMACCESS(2) + "st4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%2], #32 \n" // store 8 ARGB pixels + "b.ge 8b \n" + + "89: \n" + "adds %w3, %w3, #8-1 \n" + "b.lt 99f \n" + + // Blend 1 pixels. + "1: \n" + MEMACCESS(0) + "ld4 {v0.b,v1.b,v2.b,v3.b}[0], [%0], #4 \n" // load 1 pixel ARGB0. + MEMACCESS(1) + "ld4 {v4.b,v5.b,v6.b,v7.b}[0], [%1], #4 \n" // load 1 pixel ARGB1. + "subs %w3, %w3, #1 \n" // 1 processed per loop. + "umull v16.8h, v4.8b, v3.8b \n" // db * a + "umull v17.8h, v5.8b, v3.8b \n" // dg * a + "umull v18.8h, v6.8b, v3.8b \n" // dr * a + "uqrshrn v16.8b, v16.8h, #8 \n" // db >>= 8 + "uqrshrn v17.8b, v17.8h, #8 \n" // dg >>= 8 + "uqrshrn v18.8b, v18.8h, #8 \n" // dr >>= 8 + "uqsub v4.8b, v4.8b, v16.8b \n" // db - (db * a / 256) + "uqsub v5.8b, v5.8b, v17.8b \n" // dg - (dg * a / 256) + "uqsub v6.8b, v6.8b, v18.8b \n" // dr - (dr * a / 256) + "uqadd v0.8b, v0.8b, v4.8b \n" // + sb + "uqadd v1.8b, v1.8b, v5.8b \n" // + sg + "uqadd v2.8b, v2.8b, v6.8b \n" // + sr + "movi v3.8b, #255 \n" // a = 255 + MEMACCESS(2) + "st4 {v0.b,v1.b,v2.b,v3.b}[0], [%2], #4 \n" // store 1 pixel. + "b.ge 1b \n" + + "99: \n" + + : "+r"(src_argb0), // %0 + "+r"(src_argb1), // %1 + "+r"(dst_argb), // %2 + "+r"(width) // %3 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", + "v16", "v17", "v18" + ); +} + +// 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" + MEMACCESS(0) + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n" // load 8 ARGB pixels + "subs %w2, %w2, #8 \n" // 8 processed per loop. + "umull v4.8h, v0.8b, v3.8b \n" // b * a + "umull v5.8h, v1.8b, v3.8b \n" // g * a + "umull v6.8h, v2.8b, v3.8b \n" // r * a + "uqrshrn v0.8b, v4.8h, #8 \n" // b >>= 8 + "uqrshrn v1.8b, v5.8h, #8 \n" // g >>= 8 + "uqrshrn v2.8b, v6.8h, #8 \n" // r >>= 8 + MEMACCESS(1) + "st4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%1], #32 \n" // store 8 ARGB pixels + "b.gt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_argb), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6" + ); +} + +// 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 ( + "dup v4.8h, %w2 \n" + "ushr v4.8h, v4.8h, #1 \n" // scale >>= 1 + "dup v5.8h, %w3 \n" // interval multiply. + "dup v6.8h, %w4 \n" // interval add + + // 8 pixel loop. + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0] \n" // load 8 pixels of ARGB. + "subs %w1, %w1, #8 \n" // 8 processed per loop. + "uxtl v0.8h, v0.8b \n" // b (0 .. 255) + "uxtl v1.8h, v1.8b \n" + "uxtl v2.8h, v2.8b \n" + "sqdmulh v0.8h, v0.8h, v4.8h \n" // b * scale + "sqdmulh v1.8h, v1.8h, v4.8h \n" // g + "sqdmulh v2.8h, v2.8h, v4.8h \n" // r + "mul v0.8h, v0.8h, v5.8h \n" // b * interval_size + "mul v1.8h, v1.8h, v5.8h \n" // g + "mul v2.8h, v2.8h, v5.8h \n" // r + "add v0.8h, v0.8h, v6.8h \n" // b + interval_offset + "add v1.8h, v1.8h, v6.8h \n" // g + "add v2.8h, v2.8h, v6.8h \n" // r + "uqxtn v0.8b, v0.8h \n" + "uqxtn v1.8b, v1.8h \n" + "uqxtn v2.8b, v2.8h \n" + MEMACCESS(0) + "st4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n" // store 8 ARGB pixels + "b.gt 1b \n" + : "+r"(dst_argb), // %0 + "+r"(width) // %1 + : "r"(scale), // %2 + "r"(interval_size), // %3 + "r"(interval_offset) // %4 + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6" + ); +} + +// 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 ( + "dup v0.4s, %w3 \n" // duplicate scale value. + "zip1 v0.8b, v0.8b, v0.8b \n" // v0.8b aarrggbb. + "ushr v0.8h, v0.8h, #1 \n" // scale / 2. + + // 8 pixel loop. + "1: \n" + MEMACCESS(0) + "ld4 {v4.8b,v5.8b,v6.8b,v7.8b}, [%0], #32 \n" // load 8 ARGB pixels. + "subs %w2, %w2, #8 \n" // 8 processed per loop. + "uxtl v4.8h, v4.8b \n" // b (0 .. 255) + "uxtl v5.8h, v5.8b \n" + "uxtl v6.8h, v6.8b \n" + "uxtl v7.8h, v7.8b \n" + "sqrdmulh v4.8h, v4.8h, v0.h[0] \n" // b * scale * 2 + "sqrdmulh v5.8h, v5.8h, v0.h[1] \n" // g + "sqrdmulh v6.8h, v6.8h, v0.h[2] \n" // r + "sqrdmulh v7.8h, v7.8h, v0.h[3] \n" // a + "uqxtn v4.8b, v4.8h \n" + "uqxtn v5.8b, v5.8h \n" + "uqxtn v6.8b, v6.8h \n" + "uqxtn v7.8b, v7.8h \n" + MEMACCESS(1) + "st4 {v4.8b,v5.8b,v6.8b,v7.8b}, [%1], #32 \n" // store 8 ARGB pixels + "b.gt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_argb), // %1 + "+r"(width) // %2 + : "r"(value) // %3 + : "cc", "memory", "v0", "v4", "v5", "v6", "v7" + ); +} + +// 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 ( + "movi v24.8b, #15 \n" // B * 0.11400 coefficient + "movi v25.8b, #75 \n" // G * 0.58700 coefficient + "movi v26.8b, #38 \n" // R * 0.29900 coefficient + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n" // load 8 ARGB pixels. + "subs %w2, %w2, #8 \n" // 8 processed per loop. + "umull v4.8h, v0.8b, v24.8b \n" // B + "umlal v4.8h, v1.8b, v25.8b \n" // G + "umlal v4.8h, v2.8b, v26.8b \n" // R + "sqrshrun v0.8b, v4.8h, #7 \n" // 15 bit to 8 bit B + "orr v1.8b, v0.8b, v0.8b \n" // G + "orr v2.8b, v0.8b, v0.8b \n" // R + MEMACCESS(1) + "st4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%1], #32 \n" // store 8 pixels. + "b.gt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_argb), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v24", "v25", "v26" + ); +} + +// 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 ( + "movi v20.8b, #17 \n" // BB coefficient + "movi v21.8b, #68 \n" // BG coefficient + "movi v22.8b, #35 \n" // BR coefficient + "movi v24.8b, #22 \n" // GB coefficient + "movi v25.8b, #88 \n" // GG coefficient + "movi v26.8b, #45 \n" // GR coefficient + "movi v28.8b, #24 \n" // BB coefficient + "movi v29.8b, #98 \n" // BG coefficient + "movi v30.8b, #50 \n" // BR coefficient + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0] \n" // load 8 ARGB pixels. + "subs %w1, %w1, #8 \n" // 8 processed per loop. + "umull v4.8h, v0.8b, v20.8b \n" // B to Sepia B + "umlal v4.8h, v1.8b, v21.8b \n" // G + "umlal v4.8h, v2.8b, v22.8b \n" // R + "umull v5.8h, v0.8b, v24.8b \n" // B to Sepia G + "umlal v5.8h, v1.8b, v25.8b \n" // G + "umlal v5.8h, v2.8b, v26.8b \n" // R + "umull v6.8h, v0.8b, v28.8b \n" // B to Sepia R + "umlal v6.8h, v1.8b, v29.8b \n" // G + "umlal v6.8h, v2.8b, v30.8b \n" // R + "uqshrn v0.8b, v4.8h, #7 \n" // 16 bit to 8 bit B + "uqshrn v1.8b, v5.8h, #7 \n" // 16 bit to 8 bit G + "uqshrn v2.8b, v6.8h, #7 \n" // 16 bit to 8 bit R + MEMACCESS(0) + "st4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n" // store 8 pixels. + "b.gt 1b \n" + : "+r"(dst_argb), // %0 + "+r"(width) // %1 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", + "v20", "v21", "v22", "v24", "v25", "v26", "v28", "v29", "v30" + ); +} + +// 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 ( + MEMACCESS(3) + "ld1 {v2.16b}, [%3] \n" // load 3 ARGB vectors. + "sxtl v0.8h, v2.8b \n" // B,G coefficients s16. + "sxtl2 v1.8h, v2.16b \n" // R,A coefficients s16. + + "1: \n" + MEMACCESS(0) + "ld4 {v16.8b,v17.8b,v18.8b,v19.8b}, [%0], #32 \n" // load 8 pixels. + "subs %w2, %w2, #8 \n" // 8 processed per loop. + "uxtl v16.8h, v16.8b \n" // b (0 .. 255) 16 bit + "uxtl v17.8h, v17.8b \n" // g + "uxtl v18.8h, v18.8b \n" // r + "uxtl v19.8h, v19.8b \n" // a + "mul v22.8h, v16.8h, v0.h[0] \n" // B = B * Matrix B + "mul v23.8h, v16.8h, v0.h[4] \n" // G = B * Matrix G + "mul v24.8h, v16.8h, v1.h[0] \n" // R = B * Matrix R + "mul v25.8h, v16.8h, v1.h[4] \n" // A = B * Matrix A + "mul v4.8h, v17.8h, v0.h[1] \n" // B += G * Matrix B + "mul v5.8h, v17.8h, v0.h[5] \n" // G += G * Matrix G + "mul v6.8h, v17.8h, v1.h[1] \n" // R += G * Matrix R + "mul v7.8h, v17.8h, v1.h[5] \n" // A += G * Matrix A + "sqadd v22.8h, v22.8h, v4.8h \n" // Accumulate B + "sqadd v23.8h, v23.8h, v5.8h \n" // Accumulate G + "sqadd v24.8h, v24.8h, v6.8h \n" // Accumulate R + "sqadd v25.8h, v25.8h, v7.8h \n" // Accumulate A + "mul v4.8h, v18.8h, v0.h[2] \n" // B += R * Matrix B + "mul v5.8h, v18.8h, v0.h[6] \n" // G += R * Matrix G + "mul v6.8h, v18.8h, v1.h[2] \n" // R += R * Matrix R + "mul v7.8h, v18.8h, v1.h[6] \n" // A += R * Matrix A + "sqadd v22.8h, v22.8h, v4.8h \n" // Accumulate B + "sqadd v23.8h, v23.8h, v5.8h \n" // Accumulate G + "sqadd v24.8h, v24.8h, v6.8h \n" // Accumulate R + "sqadd v25.8h, v25.8h, v7.8h \n" // Accumulate A + "mul v4.8h, v19.8h, v0.h[3] \n" // B += A * Matrix B + "mul v5.8h, v19.8h, v0.h[7] \n" // G += A * Matrix G + "mul v6.8h, v19.8h, v1.h[3] \n" // R += A * Matrix R + "mul v7.8h, v19.8h, v1.h[7] \n" // A += A * Matrix A + "sqadd v22.8h, v22.8h, v4.8h \n" // Accumulate B + "sqadd v23.8h, v23.8h, v5.8h \n" // Accumulate G + "sqadd v24.8h, v24.8h, v6.8h \n" // Accumulate R + "sqadd v25.8h, v25.8h, v7.8h \n" // Accumulate A + "sqshrun v16.8b, v22.8h, #6 \n" // 16 bit to 8 bit B + "sqshrun v17.8b, v23.8h, #6 \n" // 16 bit to 8 bit G + "sqshrun v18.8b, v24.8h, #6 \n" // 16 bit to 8 bit R + "sqshrun v19.8b, v25.8h, #6 \n" // 16 bit to 8 bit A + MEMACCESS(1) + "st4 {v16.8b,v17.8b,v18.8b,v19.8b}, [%1], #32 \n" // store 8 pixels. + "b.gt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_argb), // %1 + "+r"(width) // %2 + : "r"(matrix_argb) // %3 + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v16", "v17", + "v18", "v19", "v22", "v23", "v24", "v25" + ); +} + +// TODO(fbarchard): fix vqshrun in ARGBMultiplyRow_NEON and reenable. +// 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. + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n" // load 8 ARGB pixels. + MEMACCESS(1) + "ld4 {v4.8b,v5.8b,v6.8b,v7.8b}, [%1], #32 \n" // load 8 more pixels. + "subs %w3, %w3, #8 \n" // 8 processed per loop. + "umull v0.8h, v0.8b, v4.8b \n" // multiply B + "umull v1.8h, v1.8b, v5.8b \n" // multiply G + "umull v2.8h, v2.8b, v6.8b \n" // multiply R + "umull v3.8h, v3.8b, v7.8b \n" // multiply A + "rshrn v0.8b, v0.8h, #8 \n" // 16 bit to 8 bit B + "rshrn v1.8b, v1.8h, #8 \n" // 16 bit to 8 bit G + "rshrn v2.8b, v2.8h, #8 \n" // 16 bit to 8 bit R + "rshrn v3.8b, v3.8h, #8 \n" // 16 bit to 8 bit A + MEMACCESS(2) + "st4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%2], #32 \n" // store 8 ARGB pixels + "b.gt 1b \n" + + : "+r"(src_argb0), // %0 + "+r"(src_argb1), // %1 + "+r"(dst_argb), // %2 + "+r"(width) // %3 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7" + ); +} + +// 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. + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n" // load 8 ARGB pixels. + MEMACCESS(1) + "ld4 {v4.8b,v5.8b,v6.8b,v7.8b}, [%1], #32 \n" // load 8 more pixels. + "subs %w3, %w3, #8 \n" // 8 processed per loop. + "uqadd v0.8b, v0.8b, v4.8b \n" + "uqadd v1.8b, v1.8b, v5.8b \n" + "uqadd v2.8b, v2.8b, v6.8b \n" + "uqadd v3.8b, v3.8b, v7.8b \n" + MEMACCESS(2) + "st4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%2], #32 \n" // store 8 ARGB pixels + "b.gt 1b \n" + + : "+r"(src_argb0), // %0 + "+r"(src_argb1), // %1 + "+r"(dst_argb), // %2 + "+r"(width) // %3 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7" + ); +} + +// 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. + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n" // load 8 ARGB pixels. + MEMACCESS(1) + "ld4 {v4.8b,v5.8b,v6.8b,v7.8b}, [%1], #32 \n" // load 8 more pixels. + "subs %w3, %w3, #8 \n" // 8 processed per loop. + "uqsub v0.8b, v0.8b, v4.8b \n" + "uqsub v1.8b, v1.8b, v5.8b \n" + "uqsub v2.8b, v2.8b, v6.8b \n" + "uqsub v3.8b, v3.8b, v7.8b \n" + MEMACCESS(2) + "st4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%2], #32 \n" // store 8 ARGB pixels + "b.gt 1b \n" + + : "+r"(src_argb0), // %0 + "+r"(src_argb1), // %1 + "+r"(dst_argb), // %2 + "+r"(width) // %3 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7" + ); +} + +// 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 ( + "movi v3.8b, #255 \n" // alpha + // 8 pixel loop. + "1: \n" + MEMACCESS(0) + "ld1 {v0.8b}, [%0], #8 \n" // load 8 sobelx. + MEMACCESS(1) + "ld1 {v1.8b}, [%1], #8 \n" // load 8 sobely. + "subs %w3, %w3, #8 \n" // 8 processed per loop. + "uqadd v0.8b, v0.8b, v1.8b \n" // add + "orr v1.8b, v0.8b, v0.8b \n" + "orr v2.8b, v0.8b, v0.8b \n" + MEMACCESS(2) + "st4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%2], #32 \n" // store 8 ARGB pixels + "b.gt 1b \n" + : "+r"(src_sobelx), // %0 + "+r"(src_sobely), // %1 + "+r"(dst_argb), // %2 + "+r"(width) // %3 + : + : "cc", "memory", "v0", "v1", "v2", "v3" + ); +} + +// 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. + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" // load 16 sobelx. + MEMACCESS(1) + "ld1 {v1.16b}, [%1], #16 \n" // load 16 sobely. + "subs %w3, %w3, #16 \n" // 16 processed per loop. + "uqadd v0.16b, v0.16b, v1.16b \n" // add + MEMACCESS(2) + "st1 {v0.16b}, [%2], #16 \n" // store 16 pixels. + "b.gt 1b \n" + : "+r"(src_sobelx), // %0 + "+r"(src_sobely), // %1 + "+r"(dst_y), // %2 + "+r"(width) // %3 + : + : "cc", "memory", "v0", "v1" + ); +} + +// 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 ( + "movi v3.8b, #255 \n" // alpha + // 8 pixel loop. + "1: \n" + MEMACCESS(0) + "ld1 {v2.8b}, [%0], #8 \n" // load 8 sobelx. + MEMACCESS(1) + "ld1 {v0.8b}, [%1], #8 \n" // load 8 sobely. + "subs %w3, %w3, #8 \n" // 8 processed per loop. + "uqadd v1.8b, v0.8b, v2.8b \n" // add + MEMACCESS(2) + "st4 {v0.8b,v1.8b,v2.8b,v3.8b}, [%2], #32 \n" // store 8 ARGB pixels + "b.gt 1b \n" + : "+r"(src_sobelx), // %0 + "+r"(src_sobely), // %1 + "+r"(dst_argb), // %2 + "+r"(width) // %3 + : + : "cc", "memory", "v0", "v1", "v2", "v3" + ); +} + +// 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 ( + "1: \n" + MEMACCESS(0) + "ld1 {v0.8b}, [%0],%5 \n" // top + MEMACCESS(0) + "ld1 {v1.8b}, [%0],%6 \n" + "usubl v0.8h, v0.8b, v1.8b \n" + MEMACCESS(1) + "ld1 {v2.8b}, [%1],%5 \n" // center * 2 + MEMACCESS(1) + "ld1 {v3.8b}, [%1],%6 \n" + "usubl v1.8h, v2.8b, v3.8b \n" + "add v0.8h, v0.8h, v1.8h \n" + "add v0.8h, v0.8h, v1.8h \n" + MEMACCESS(2) + "ld1 {v2.8b}, [%2],%5 \n" // bottom + MEMACCESS(2) + "ld1 {v3.8b}, [%2],%6 \n" + "subs %w4, %w4, #8 \n" // 8 pixels + "usubl v1.8h, v2.8b, v3.8b \n" + "add v0.8h, v0.8h, v1.8h \n" + "abs v0.8h, v0.8h \n" + "uqxtn v0.8b, v0.8h \n" + MEMACCESS(3) + "st1 {v0.8b}, [%3], #8 \n" // store 8 sobelx + "b.gt 1b \n" + : "+r"(src_y0), // %0 + "+r"(src_y1), // %1 + "+r"(src_y2), // %2 + "+r"(dst_sobelx), // %3 + "+r"(width) // %4 + : "r"(2LL), // %5 + "r"(6LL) // %6 + : "cc", "memory", "v0", "v1", "v2", "v3" // 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 ( + "1: \n" + MEMACCESS(0) + "ld1 {v0.8b}, [%0],%4 \n" // left + MEMACCESS(1) + "ld1 {v1.8b}, [%1],%4 \n" + "usubl v0.8h, v0.8b, v1.8b \n" + MEMACCESS(0) + "ld1 {v2.8b}, [%0],%4 \n" // center * 2 + MEMACCESS(1) + "ld1 {v3.8b}, [%1],%4 \n" + "usubl v1.8h, v2.8b, v3.8b \n" + "add v0.8h, v0.8h, v1.8h \n" + "add v0.8h, v0.8h, v1.8h \n" + MEMACCESS(0) + "ld1 {v2.8b}, [%0],%5 \n" // right + MEMACCESS(1) + "ld1 {v3.8b}, [%1],%5 \n" + "subs %w3, %w3, #8 \n" // 8 pixels + "usubl v1.8h, v2.8b, v3.8b \n" + "add v0.8h, v0.8h, v1.8h \n" + "abs v0.8h, v0.8h \n" + "uqxtn v0.8b, v0.8h \n" + MEMACCESS(2) + "st1 {v0.8b}, [%2], #8 \n" // store 8 sobely + "b.gt 1b \n" + : "+r"(src_y0), // %0 + "+r"(src_y1), // %1 + "+r"(dst_sobely), // %2 + "+r"(width) // %3 + : "r"(1LL), // %4 + "r"(6LL) // %5 + : "cc", "memory", "v0", "v1", "v2", "v3" // Clobber List + ); +} +#endif // !defined(LIBYUV_DISABLE_NEON) && defined(__aarch64__) + +#ifdef __cplusplus +} // extern "C" +} // namespace libyuv +#endif |