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Diffstat (limited to 'src/main/jni/libyuv/source/row_neon64.cc')
| -rw-r--r-- | src/main/jni/libyuv/source/row_neon64.cc | 3327 |
1 files changed, 3327 insertions, 0 deletions
diff --git a/src/main/jni/libyuv/source/row_neon64.cc b/src/main/jni/libyuv/source/row_neon64.cc new file mode 100644 index 000000000..952e10d73 --- /dev/null +++ b/src/main/jni/libyuv/source/row_neon64.cc @@ -0,0 +1,3327 @@ +/* + * 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 +#if !defined(LIBYUV_DISABLE_NEON) && defined(__aarch64__) + +// Read 8 Y, 4 U and 4 V from 422 +#define READYUV422 \ + MEMACCESS(0) \ + "vld1.8 {d0}, [%0]! \n" \ + MEMACCESS(1) \ + "vld1.32 {d2[0]}, [%1]! \n" \ + MEMACCESS(2) \ + "vld1.32 {d2[1]}, [%2]! \n" + +// Read 8 Y, 2 U and 2 V from 422 +#define READYUV411 \ + MEMACCESS(0) \ + "vld1.8 {d0}, [%0]! \n" \ + MEMACCESS(1) \ + "vld1.16 {d2[0]}, [%1]! \n" \ + MEMACCESS(2) \ + "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 \ + MEMACCESS(0) \ + "vld1.8 {d0}, [%0]! \n" \ + MEMACCESS(1) \ + "vld1.8 {d2}, [%1]! \n" \ + MEMACCESS(2) \ + "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 \ + MEMACCESS(0) \ + "vld1.8 {d0}, [%0]! \n" \ + "vmov.u8 d2, #128 \n" + +// Read 8 Y and 4 UV from NV12 +#define READNV12 \ + MEMACCESS(0) \ + "vld1.8 {d0}, [%0]! \n" \ + MEMACCESS(1) \ + "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 \ + MEMACCESS(0) \ + "vld1.8 {d0}, [%0]! \n" \ + MEMACCESS(1) \ + "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 \ + MEMACCESS(0) \ + "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 \ + MEMACCESS(0) \ + "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 }; + +#ifdef HAS_I444TOARGBROW_NEON +void I444ToARGBRow_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_argb, + int width) { + asm volatile ( + MEMACCESS(5) + "vld1.8 {d24}, [%5] \n" + MEMACCESS(6) + "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" + MEMACCESS(3) + "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" + ); +} +#endif // HAS_I444TOARGBROW_NEON + +#ifdef HAS_I422TOARGBROW_NEON +void I422ToARGBRow_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_argb, + int width) { + asm volatile ( + MEMACCESS(5) + "vld1.8 {d24}, [%5] \n" + MEMACCESS(6) + "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" + MEMACCESS(3) + "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" + ); +} +#endif // HAS_I422TOARGBROW_NEON + +#ifdef HAS_I411TOARGBROW_NEON +void I411ToARGBRow_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_argb, + int width) { + asm volatile ( + MEMACCESS(5) + "vld1.8 {d24}, [%5] \n" + MEMACCESS(6) + "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" + MEMACCESS(3) + "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" + ); +} +#endif // HAS_I411TOARGBROW_NEON + +#ifdef HAS_I422TOBGRAROW_NEON +void I422ToBGRARow_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_bgra, + int width) { + asm volatile ( + MEMACCESS(5) + "vld1.8 {d24}, [%5] \n" + MEMACCESS(6) + "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" + MEMACCESS(3) + "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" + ); +} +#endif // HAS_I422TOBGRAROW_NEON + +#ifdef HAS_I422TOABGRROW_NEON +void I422ToABGRRow_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_abgr, + int width) { + asm volatile ( + MEMACCESS(5) + "vld1.8 {d24}, [%5] \n" + MEMACCESS(6) + "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" + MEMACCESS(3) + "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" + ); +} +#endif // HAS_I422TOABGRROW_NEON + +#ifdef HAS_I422TORGBAROW_NEON +void I422ToRGBARow_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_rgba, + int width) { + asm volatile ( + MEMACCESS(5) + "vld1.8 {d24}, [%5] \n" + MEMACCESS(6) + "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" + MEMACCESS(3) + "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" + ); +} +#endif // HAS_I422TORGBAROW_NEON + +#ifdef HAS_I422TORGB24ROW_NEON +void I422ToRGB24Row_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_rgb24, + int width) { + asm volatile ( + MEMACCESS(5) + "vld1.8 {d24}, [%5] \n" + MEMACCESS(6) + "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" + MEMACCESS(3) + "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" + ); +} +#endif // HAS_I422TORGB24ROW_NEON + +#ifdef HAS_I422TORAWROW_NEON +void I422ToRAWRow_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_raw, + int width) { + asm volatile ( + MEMACCESS(5) + "vld1.8 {d24}, [%5] \n" + MEMACCESS(6) + "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" + MEMACCESS(3) + "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" + ); +} +#endif // HAS_I422TORAWROW_NEON + +#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 */ + +#ifdef HAS_I422TORGB565ROW_NEON +void I422ToRGB565Row_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_rgb565, + int width) { + asm volatile ( + MEMACCESS(5) + "vld1.8 {d24}, [%5] \n" + MEMACCESS(6) + "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 + MEMACCESS(3) + "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" + ); +} +#endif // HAS_I422TORGB565ROW_NEON + +#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 */ + +#ifdef HAS_I422TOARGB1555ROW_NEON +void I422ToARGB1555Row_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_argb1555, + int width) { + asm volatile ( + MEMACCESS(5) + "vld1.8 {d24}, [%5] \n" + MEMACCESS(6) + "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 + MEMACCESS(3) + "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" + ); +} +#endif // HAS_I422TOARGB1555ROW_NEON + +#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 */ + +#ifdef HAS_I422TOARGB4444ROW_NEON +void I422ToARGB4444Row_NEON(const uint8* src_y, + const uint8* src_u, + const uint8* src_v, + uint8* dst_argb4444, + int width) { + asm volatile ( + MEMACCESS(5) + "vld1.8 {d24}, [%5] \n" + MEMACCESS(6) + "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 + MEMACCESS(3) + "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" + ); +} +#endif // HAS_I422TOARGB4444ROW_NEON + +#ifdef HAS_YTOARGBROW_NEON +void YToARGBRow_NEON(const uint8* src_y, + uint8* dst_argb, + int width) { + asm volatile ( + MEMACCESS(3) + "vld1.8 {d24}, [%3] \n" + MEMACCESS(4) + "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" + MEMACCESS(1) + "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" + ); +} +#endif // HAS_YTOARGBROW_NEON + +#ifdef HAS_I400TOARGBROW_NEON +void I400ToARGBRow_NEON(const uint8* src_y, + uint8* dst_argb, + int width) { + asm volatile ( + ".p2align 2 \n" + "vmov.u8 d23, #255 \n" + "1: \n" + MEMACCESS(0) + "vld1.8 {d20}, [%0]! \n" + "vmov d21, d20 \n" + "vmov d22, d20 \n" + "subs %2, %2, #8 \n" + MEMACCESS(1) + "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" + ); +} +#endif // HAS_I400TOARGBROW_NEON + +#ifdef HAS_NV12TOARGBROW_NEON +void NV12ToARGBRow_NEON(const uint8* src_y, + const uint8* src_uv, + uint8* dst_argb, + int width) { + asm volatile ( + MEMACCESS(4) + "vld1.8 {d24}, [%4] \n" + MEMACCESS(5) + "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" + MEMACCESS(2) + "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" + ); +} +#endif // HAS_NV12TOARGBROW_NEON + +#ifdef HAS_NV21TOARGBROW_NEON +void NV21ToARGBRow_NEON(const uint8* src_y, + const uint8* src_uv, + uint8* dst_argb, + int width) { + asm volatile ( + MEMACCESS(4) + "vld1.8 {d24}, [%4] \n" + MEMACCESS(5) + "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" + MEMACCESS(2) + "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" + ); +} +#endif // HAS_NV21TOARGBROW_NEON + +#ifdef HAS_NV12TORGB565ROW_NEON +void NV12ToRGB565Row_NEON(const uint8* src_y, + const uint8* src_uv, + uint8* dst_rgb565, + int width) { + asm volatile ( + MEMACCESS(4) + "vld1.8 {d24}, [%4] \n" + MEMACCESS(5) + "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 + MEMACCESS(2) + "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" + ); +} +#endif // HAS_NV12TORGB565ROW_NEON + +#ifdef HAS_NV21TORGB565ROW_NEON +void NV21ToRGB565Row_NEON(const uint8* src_y, + const uint8* src_uv, + uint8* dst_rgb565, + int width) { + asm volatile ( + MEMACCESS(4) + "vld1.8 {d24}, [%4] \n" + MEMACCESS(5) + "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 + MEMACCESS(2) + "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" + ); +} +#endif // HAS_NV21TORGB565ROW_NEON + +#ifdef HAS_YUY2TOARGBROW_NEON +void YUY2ToARGBRow_NEON(const uint8* src_yuy2, + uint8* dst_argb, + int width) { + asm volatile ( + MEMACCESS(3) + "vld1.8 {d24}, [%3] \n" + MEMACCESS(4) + "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" + MEMACCESS(1) + "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" + ); +} +#endif // HAS_YUY2TOARGBROW_NEON + +#ifdef HAS_UYVYTOARGBROW_NEON +void UYVYToARGBRow_NEON(const uint8* src_uyvy, + uint8* dst_argb, + int width) { + asm volatile ( + MEMACCESS(3) + "vld1.8 {d24}, [%3] \n" + MEMACCESS(4) + "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" + MEMACCESS(1) + "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" + ); +} +#endif // HAS_UYVYTOARGBROW_NEON + +// Reads 16 pairs of UV and write even values to dst_u and odd to dst_v. +#ifdef HAS_SPLITUVROW_NEON +void SplitUVRow_NEON(const uint8* src_uv, uint8* dst_u, uint8* dst_v, + int width) { + asm volatile ( + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld2 {v0.16b, v1.16b}, [%0], #32 \n" // load 16 pairs of UV + "subs %3, %3, #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 + "bgt 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 + ); +} +#endif // HAS_SPLITUVROW_NEON + +// Reads 16 U's and V's and writes out 16 pairs of UV. +#ifdef HAS_MERGEUVROW_NEON +void MergeUVRow_NEON(const uint8* src_u, const uint8* src_v, uint8* dst_uv, + int width) { + asm volatile ( + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" // load U + MEMACCESS(1) + "ld1 {v1.16b}, [%1], #16 \n" // load V + "subs %3, %3, #16 \n" // 16 processed per loop + MEMACCESS(2) + "st2 {v0.16b, v1.16b}, [%2], #32 \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", "v0", "v1" // Clobber List + ); +} +#endif // HAS_MERGEUVROW_NEON + +// Copy multiple of 32. vld4.8 allow unaligned and is fastest on a15. +#ifdef HAS_COPYROW_NEON +void CopyRow_NEON(const uint8* src, uint8* dst, int count) { + asm volatile ( + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld1 {v0.8b-v3.8b}, [%0], #32 \n" // load 32 + "subs %2, %2, #32 \n" // 32 processed per loop + MEMACCESS(1) + "st1 {v0.8b-v3.8b}, [%1], #32 \n" // store 32 + "bgt 1b \n" + : "+r"(src), // %0 + "+r"(dst), // %1 + "+r"(count) // %2 // Output registers + : // Input registers + : "cc", "memory", "v0", "v1", "v2", "v3" // Clobber List + ); +} +#endif // HAS_COPYROW_NEON + +// SetRow8 writes 'count' bytes using a 32 bit value repeated. +#ifdef HAS_SETROW_NEON +void SetRow_NEON(uint8* dst, uint32 v32, int count) { + asm volatile ( + "dup v0.4s, %w2 \n" // duplicate 4 ints + "1: \n" + "subs %1, %1, #16 \n" // 16 bytes per loop + MEMACCESS(0) + "st1 {v0.16b}, [%0], #16 \n" // store + "bgt 1b \n" + : "+r"(dst), // %0 + "+r"(count) // %1 + : "r"(v32) // %2 + : "cc", "memory", "v0" + ); +} +#endif // HAS_SETROW_NEON + +// TODO(fbarchard): Make fully assembler +// SetRow32 writes 'count' words using a 32 bit value repeated. +#ifdef HAS_ARGBSETROWS_NEON +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; + } +} +#endif // HAS_ARGBSETROWS_NEON + +#ifdef HAS_MIRRORROW_NEON +void MirrorRow_NEON(const uint8* src, uint8* dst, int width) { + asm volatile ( + // Start at end of source row. + "add %0, %0, %2 \n" + "sub %0, %0, #16 \n" + + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], %3 \n" // src -= 16 + "subs %2, %2, #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" + "bgt 1b \n" + : "+r"(src), // %0 + "+r"(dst), // %1 + "+r"(width) // %2 + : "r"((ptrdiff_t)-16) // %3 + : "cc", "memory", "v0" + ); +} +#endif // HAS_MIRRORROW_NEON + +#ifdef HAS_MIRRORUVROW_NEON +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, %3, lsl #1 \n" + "sub %0, %0, #16 \n" + + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld2 {v0.8b, v1.8b}, [%0], %4 \n" // src -= 16 + "subs %3, %3, #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" + "bgt 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" + ); +} +#endif // HAS_MIRRORUVROW_NEON + +#ifdef HAS_ARGBMIRRORROW_NEON +void ARGBMirrorRow_NEON(const uint8* src, uint8* dst, int width) { + asm volatile ( + // Start at end of source row. + "add %0, %0, %2, lsl #2 \n" + "sub %0, %0, #16 \n" + + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], %3 \n" // src -= 16 + "subs %2, %2, #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" + "bgt 1b \n" + : "+r"(src), // %0 + "+r"(dst), // %1 + "+r"(width) // %2 + : "r"((ptrdiff_t)-16) // %3 + : "cc", "memory", "v0" + ); +} +#endif // HAS_ARGBMIRRORROW_NEON + +#ifdef HAS_RGB24TOARGBROW_NEON +void RGB24ToARGBRow_NEON(const uint8* src_rgb24, uint8* dst_argb, int pix) { + asm volatile ( + "movi v4.8b, #255 \n" // Alpha + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld3 {v1.8b-v3.8b}, [%0], #24 \n" // load 8 pixels of RGB24. + "subs %2, %2, #8 \n" // 8 processed per loop. + MEMACCESS(1) + "st4 {v1.8b-v4.8b}, [%1], #32 \n" // store 8 pixels of ARGB. + "bgt 1b \n" + : "+r"(src_rgb24), // %0 + "+r"(dst_argb), // %1 + "+r"(pix) // %2 + : + : "cc", "memory", "v1", "v2", "v3", "v4" // Clobber List + ); +} +#endif // HAS_RGB24TOARGBROW_NEON + +#ifdef HAS_RAWTOARGBROW_NEON +void RAWToARGBRow_NEON(const uint8* src_raw, uint8* dst_argb, int pix) { + asm volatile ( + "movi v5.8b, #255 \n" // Alpha + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld3 {v0.8b-v2.8b}, [%0], #24 \n" // read r g b + "subs %2, %2, #8 \n" // 8 processed per loop. + "mov v3.8b, v1.8b \n" // move g + "mov v4.8b, v0.8b \n" // move r + MEMACCESS(1) + "st4 {v2.8b-v5.8b}, [%1], #32 \n" // store b g r a + "bgt 1b \n" + : "+r"(src_raw), // %0 + "+r"(dst_argb), // %1 + "+r"(pix) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5" // Clobber List + ); +} +#endif // HAS_RAWTOARGBROW_NEON + +#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 */ + +#ifdef HAS_RGB565TOARGBROW_NEON +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" + MEMACCESS(0) + "vld1.8 {q0}, [%0]! \n" // load 8 RGB565 pixels. + "subs %2, %2, #8 \n" // 8 processed per loop. + RGB565TOARGB + MEMACCESS(1) + "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 + ); +} +#endif // HAS_RGB565TOARGBROW_NEON + +#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 */ + +#ifdef HAS_ARGB1555TOARGBROW_NEON +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" + MEMACCESS(0) + "vld1.8 {q0}, [%0]! \n" // load 8 ARGB1555 pixels. + "subs %2, %2, #8 \n" // 8 processed per loop. + ARGB1555TOARGB + MEMACCESS(1) + "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 + ); +} +#endif // HAS_ARGB1555TOARGBROW_NEON + +#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 */ + +#ifdef HAS_ARGB4444TOARGBROW_NEON +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" + MEMACCESS(0) + "vld1.8 {q0}, [%0]! \n" // load 8 ARGB4444 pixels. + "subs %2, %2, #8 \n" // 8 processed per loop. + ARGB4444TOARGB + MEMACCESS(1) + "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 + ); +} +#endif // HAS_ARGB4444TOARGBROW_NEON + +#ifdef HAS_ARGBTORGB24ROW_NEON +void ARGBToRGB24Row_NEON(const uint8* src_argb, uint8* dst_rgb24, int pix) { + asm volatile ( + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld4 {v1.8b-v4.8b}, [%0], #32 \n" // load 8 pixels of ARGB. + "subs %2, %2, #8 \n" // 8 processed per loop. + MEMACCESS(1) + "st3 {v1.8b-v3.8b}, [%1], #24 \n" // store 8 pixels of RGB24. + "bgt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_rgb24), // %1 + "+r"(pix) // %2 + : + : "cc", "memory", "v1", "v2", "v3", "v4" // Clobber List + ); +} +#endif // HAS_ARGBTORGB24ROW_NEON + +#ifdef HAS_ARGBTORAWROW_NEON +void ARGBToRAWRow_NEON(const uint8* src_argb, uint8* dst_raw, int pix) { + asm volatile ( + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld4 {v1.8b-v4.8b}, [%0], #32 \n" // load b g r a + "subs %2, %2, #8 \n" // 8 processed per loop. + "mov v4.8b, v2.8b \n" // mov g + "mov v5.8b, v1.8b \n" // mov b + MEMACCESS(1) + "st3 {v3.8b-v5.8b}, [%1], #24 \n" // store r g b + "bgt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_raw), // %1 + "+r"(pix) // %2 + : + : "cc", "memory", "v1", "v2", "v3", "v4", "v5" // Clobber List + ); +} +#endif // HAS_ARGBTORAWROW_NEON + +#ifdef HAS_YUY2TOYROW_NEON +void YUY2ToYRow_NEON(const uint8* src_yuy2, uint8* dst_y, int pix) { + asm volatile ( + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld2 {v0.16b, v1.16b}, [%0], #32 \n" // load 16 pixels of YUY2. + "subs %2, %2, #16 \n" // 16 processed per loop. + MEMACCESS(1) + "st1 {v0.16b}, [%1], #16 \n" // store 16 pixels of Y. + "bgt 1b \n" + : "+r"(src_yuy2), // %0 + "+r"(dst_y), // %1 + "+r"(pix) // %2 + : + : "cc", "memory", "v0", "v1" // Clobber List + ); +} +#endif // HAS_YUY2TOYROW_NEON + +#ifdef HAS_UYVYTOYROW_NEON +void UYVYToYRow_NEON(const uint8* src_uyvy, uint8* dst_y, int pix) { + asm volatile ( + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld2 {v0.16b, v1.16b}, [%0], #32 \n" // load 16 pixels of UYVY. + "subs %2, %2, #16 \n" // 16 processed per loop. + MEMACCESS(1) + "st1 {v1.16b}, [%1], #16 \n" // store 16 pixels of Y. + "bgt 1b \n" + : "+r"(src_uyvy), // %0 + "+r"(dst_y), // %1 + "+r"(pix) // %2 + : + : "cc", "memory", "v0", "v1" // Clobber List + ); +} +#endif // HAS_UYVYTOYROW_NEON + +#ifdef HAS_YUY2TOUV422ROW_NEON +void YUY2ToUV422Row_NEON(const uint8* src_yuy2, uint8* dst_u, uint8* dst_v, + int pix) { + asm volatile ( + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b-v3.8b}, [%0], #32 \n" // load 16 pixels of YUY2. + "subs %3, %3, #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. + "bgt 1b \n" + : "+r"(src_yuy2), // %0 + "+r"(dst_u), // %1 + "+r"(dst_v), // %2 + "+r"(pix) // %3 + : + : "cc", "memory", "v0", "v1", "v2", "v3" // Clobber List + ); +} +#endif // HAS_YUY2TOUV422ROW_NEON + +#ifdef HAS_UYVYTOUV422ROW_NEON +void UYVYToUV422Row_NEON(const uint8* src_uyvy, uint8* dst_u, uint8* dst_v, + int pix) { + asm volatile ( + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b-v3.8b}, [%0], #32 \n" // load 16 pixels of UYVY. + "subs %3, %3, #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. + "bgt 1b \n" + : "+r"(src_uyvy), // %0 + "+r"(dst_u), // %1 + "+r"(dst_v), // %2 + "+r"(pix) // %3 + : + : "cc", "memory", "v0", "v1", "v2", "v3" // Clobber List + ); +} +#endif // HAS_UYVYTOUV422ROW_NEON + +#ifdef HAS_YUY2TOUVROW_NEON +void YUY2ToUVRow_NEON(const uint8* src_yuy2, int stride_yuy2, + uint8* dst_u, uint8* dst_v, int pix) { + asm volatile ( + "add %x1, %x0, %w1, sxtw \n" // stride + src_yuy2 + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b-v3.8b}, [%0], #32 \n" // load 16 pixels of YUY2. + "subs %4, %4, #16 \n" // 16 pixels = 8 UVs. + MEMACCESS(1) + "ld4 {v4.8b-v7.8b}, [%1], #32 \n" // load next row YUY2. + "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. + "bgt 1b \n" + : "+r"(src_yuy2), // %0 + "+r"(stride_yuy2), // %1 + "+r"(dst_u), // %2 + "+r"(dst_v), // %3 + "+r"(pix) // %4 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7" // Clobber List + ); +} +#endif // HAS_YUY2TOUVROW_NEON + +#ifdef HAS_UYVYTOUVROW_NEON +void UYVYToUVRow_NEON(const uint8* src_uyvy, int stride_uyvy, + uint8* dst_u, uint8* dst_v, int pix) { + asm volatile ( + "add %x1, %x0, %w1, sxtw \n" // stride + src_uyvy + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b-v3.8b}, [%0], #32 \n" // load 16 pixels of UYVY. + "subs %4, %4, #16 \n" // 16 pixels = 8 UVs. + MEMACCESS(1) + "ld4 {v4.8b-v7.8b}, [%1], #32 \n" // load next row UYVY. + "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. + "bgt 1b \n" + : "+r"(src_uyvy), // %0 + "+r"(stride_uyvy), // %1 + "+r"(dst_u), // %2 + "+r"(dst_v), // %3 + "+r"(pix) // %4 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7" // Clobber List + ); +} +#endif // HAS_UYVYTOUVROW_NEON + +#ifdef HAS_HALFROW_NEON +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 %x1, %x0, %w1, sxtw \n" + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" // load row 1 16 pixels. + "subs %3, %3, #16 \n" // 16 processed per loop + MEMACCESS(1) + "ld1 {v1.16b}, [%1], #16 \n" // load row 2 16 pixels. + "urhadd v0.16b, v0.16b, v1.16b \n" // average row 1 and 2 + MEMACCESS(2) + "st1 {v0.16b}, [%2], #16 \n" + "bgt 1b \n" + : "+r"(src_uv), // %0 + "+r"(src_uv_stride), // %1 + "+r"(dst_uv), // %2 + "+r"(pix) // %3 + : + : "cc", "memory", "v0", "v1" // Clobber List + ); +} +#endif // HAS_HALFROW_NEON + +// Select 2 channels from ARGB on alternating pixels. e.g. BGBGBGBG +#ifdef HAS_ARGBTOBAYERROW_NEON +void ARGBToBayerRow_NEON(const uint8* src_argb, uint8* dst_bayer, + uint32 selector, int pix) { + asm volatile ( + "mov v2.s[0], %w3 \n" // selector + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b, v1.16b}, [%0], 32 \n" // load row 8 pixels. + "subs %2, %2, #8 \n" // 8 processed per loop + "tbl v4.8b, {v0.16b}, v2.8b \n" // look up 4 pixels + "tbl v5.8b, {v1.16b}, v2.8b \n" // look up 4 pixels + "trn1 v4.4s, v4.4s, v5.4s \n" // combine 8 pixels + MEMACCESS(1) + "st1 {v4.8b}, [%1], #8 \n" // store 8. + "bgt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_bayer), // %1 + "+r"(pix) // %2 + : "r"(selector) // %3 + : "cc", "memory", "v0", "v1", "v2", "v4", "v5" // Clobber List + ); +} +#endif // HAS_ARGBTOBAYERROW_NEON + +// Select G channels from ARGB. e.g. GGGGGGGG +#ifdef HAS_ARGBTOBAYERGGROW_NEON +void ARGBToBayerGGRow_NEON(const uint8* src_argb, uint8* dst_bayer, + uint32 /*selector*/, int pix) { + asm volatile ( + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b-v3.8b}, [%0], #32 \n" // load row 8 pixels. + "subs %2, %2, #8 \n" // 8 processed per loop + MEMACCESS(1) + "st1 {v1.8b}, [%1], #8 \n" // store 8 G's. + "bgt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_bayer), // %1 + "+r"(pix) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3" // Clobber List + ); +} +#endif // HAS_ARGBTOBAYERGGROW_NEON + +// For BGRAToARGB, ABGRToARGB, RGBAToARGB, and ARGBToRGBA. +#ifdef HAS_ARGBSHUFFLEROW_NEON +void ARGBShuffleRow_NEON(const uint8* src_argb, uint8* dst_argb, + const uint8* shuffler, int pix) { + asm volatile ( + MEMACCESS(3) + "ld1 {v2.16b}, [%3] \n" // shuffler + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" // load 4 pixels. + "subs %2, %2, #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. + "bgt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_argb), // %1 + "+r"(pix) // %2 + : "r"(shuffler) // %3 + : "cc", "memory", "v0", "v1", "v2" // Clobber List + ); +} +#endif // HAS_ARGBSHUFFLEROW_NEON + +#ifdef HAS_I422TOYUY2ROW_NEON +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" + MEMACCESS(0) + "ld2 {v0.8b, v1.8b}, [%0], #16 \n" // load 16 Ys + "mov v2.8b, 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 %4, %4, #16 \n" // 16 pixels + MEMACCESS(3) + "st4 {v0.8b-v3.8b}, [%3], #32 \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", "v0", "v1", "v2", "v3" + ); +} +#endif // HAS_I422TOYUY2ROW_NEON + +#ifdef HAS_I422TOUYVYROW_NEON +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" + MEMACCESS(0) + "ld2 {v1.8b, v2.8b}, [%0], #16 \n" // load 16 Ys + "mov v3.8b, 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 %4, %4, #16 \n" // 16 pixels + MEMACCESS(3) + "st4 {v0.8b-v3.8b}, [%3], #32 \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", "v0", "v1", "v2", "v3" + ); +} +#endif // HAS_I422TOUYVYROW_NEON + +#ifdef HAS_ARGBTORGB565ROW_NEON +void ARGBToRGB565Row_NEON(const uint8* src_argb, uint8* dst_rgb565, int pix) { + asm volatile ( + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "vld4.8 {d20, d21, d22, d23}, [%0]! \n" // load 8 pixels of ARGB. + "subs %2, %2, #8 \n" // 8 processed per loop. + ARGBTORGB565 + MEMACCESS(1) + "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" + ); +} +#endif // HAS_ARGBTORGB565ROW_NEON + +#ifdef HAS_ARGBTOARGB1555ROW_NEON +void ARGBToARGB1555Row_NEON(const uint8* src_argb, uint8* dst_argb1555, + int pix) { + asm volatile ( + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "vld4.8 {d20, d21, d22, d23}, [%0]! \n" // load 8 pixels of ARGB. + "subs %2, %2, #8 \n" // 8 processed per loop. + ARGBTOARGB1555 + MEMACCESS(1) + "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" + ); +} +#endif // HAS_ARGBTOARGB1555ROW_NEON + +#ifdef HAS_ARGBTOARGB4444ROW_NEON +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" + MEMACCESS(0) + "vld4.8 {d20, d21, d22, d23}, [%0]! \n" // load 8 pixels of ARGB. + "subs %2, %2, #8 \n" // 8 processed per loop. + ARGBTOARGB4444 + MEMACCESS(1) + "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" + ); +} +#endif // HAS_ARGBTOARGB4444ROW_NEON + +#ifdef HAS_ARGBTOYROW_NEON +void ARGBToYRow_NEON(const uint8* src_argb, uint8* dst_y, int pix) { + 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 + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b-v3.8b}, [%0], #32 \n" // load 8 ARGB pixels. + "subs %2, %2, #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. + "bgt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_y), // %1 + "+r"(pix) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7" + ); +} +#endif // HAS_ARGBTOYROW_NEON + +#ifdef HAS_ARGBTOYJROW_NEON +void ARGBToYJRow_NEON(const uint8* src_argb, uint8* dst_y, int pix) { + 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 + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b-v3.8b}, [%0], #32 \n" // load 8 ARGB pixels. + "subs %2, %2, #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. + "bgt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_y), // %1 + "+r"(pix) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6" + ); +} +#endif // HAS_ARGBTOYJROW_NEON + +// 8x1 pixels. +#ifdef HAS_ARGBTOUV444ROW_NEON +void ARGBToUV444Row_NEON(const uint8* src_argb, uint8* dst_u, uint8* dst_v, + int pix) { + 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 + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b-v3.8b}, [%0], #32 \n" // load 8 ARGB pixels. + "subs %3, %3, #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. + "bgt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_u), // %1 + "+r"(dst_v), // %2 + "+r"(pix) // %3 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", + "v24", "v25", "v26", "v27", "v28", "v29" + ); +} +#endif // HAS_ARGBTOUV444ROW_NEON + +// 16x1 pixels -> 8x1. pix is number of argb pixels. e.g. 16. +#ifdef HAS_ARGBTOUV422ROW_NEON +void ARGBToUV422Row_NEON(const uint8* src_argb, uint8* dst_u, uint8* dst_v, + int pix) { + asm volatile ( + "movi v20.8h, #112 / 2 \n" // UB / VR 0.875 coefficient + "movi v21.8h, #74 / 2 \n" // UG -0.5781 coefficient + "movi v22.8h, #38 / 2 \n" // UR -0.2969 coefficient + "movi v23.8h, #18 / 2 \n" // VB -0.1406 coefficient + "movi v24.8h, #94 / 2 \n" // VG -0.7344 coefficient + "movi v25.16b, #0x80 \n" // 128.5 + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld4 {v0.16b-v3.16b}, [%0], #64 \n" // load 16 ARGB 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. + + "subs %3, %3, #16 \n" // 16 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. + "bgt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_u), // %1 + "+r"(dst_v), // %2 + "+r"(pix) // %3 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", + "v20", "v21", "v22", "v23", "v24", "v25" + ); +} +#endif // HAS_ARGBTOUV422ROW_NEON + +// 32x1 pixels -> 8x1. pix is number of argb pixels. e.g. 32. +#ifdef HAS_ARGBTOUV411ROW_NEON +void ARGBToUV411Row_NEON(const uint8* src_argb, uint8* dst_u, uint8* dst_v, + int pix) { + asm volatile ( + "movi v20.8h, #112 / 2 \n" // UB / VR 0.875 coefficient + "movi v21.8h, #74 / 2 \n" // UG -0.5781 coefficient + "movi v22.8h, #38 / 2 \n" // UR -0.2969 coefficient + "movi v23.8h, #18 / 2 \n" // VB -0.1406 coefficient + "movi v24.8h, #94 / 2 \n" // VG -0.7344 coefficient + "movi v25.16b, #0x80 \n" // 128.5 + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld4 {v0.16b-v3.16b}, [%0], #64 \n" // load 16 ARGB 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-v7.16b}, [%0], #64 \n" // load next 16 ARGB pixels. + "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 %3, %3, #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. + "bgt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_u), // %1 + "+r"(dst_v), // %2 + "+r"(pix) // %3 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", + "v20", "v21", "v22", "v23", "v24", "v25" + ); +} +#endif // HAS_ARGBTOUV411ROW_NEON + +// 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. +#ifdef HAS_ARGBTOUVROW_NEON +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" + MEMACCESS(0) + "vld4.8 {d0, d2, d4, d6}, [%0]! \n" // load 8 ARGB pixels. + MEMACCESS(0) + "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. + MEMACCESS(1) + "vld4.8 {d8, d10, d12, d14}, [%1]! \n" // load 8 more ARGB pixels. + MEMACCESS(1) + "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) + MEMACCESS(2) + "vst1.8 {d0}, [%2]! \n" // store 8 pixels U. + MEMACCESS(3) + "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" + ); +} +#endif // HAS_ARGBTOUVROW_NEON + +// TODO(fbarchard): Subsample match C code. +#ifdef HAS_ARGBTOUVJROW_NEON +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" + MEMACCESS(0) + "vld4.8 {d0, d2, d4, d6}, [%0]! \n" // load 8 ARGB pixels. + MEMACCESS(0) + "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. + MEMACCESS(1) + "vld4.8 {d8, d10, d12, d14}, [%1]! \n" // load 8 more ARGB pixels. + MEMACCESS(1) + "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) + MEMACCESS(2) + "vst1.8 {d0}, [%2]! \n" // store 8 pixels U. + MEMACCESS(3) + "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" + ); +} +#endif // HAS_ARGBTOUVJROW_NEON + +#ifdef HAS_BGRATOUVROW_NEON +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" + MEMACCESS(0) + "vld4.8 {d0, d2, d4, d6}, [%0]! \n" // load 8 BGRA pixels. + MEMACCESS(0) + "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. + MEMACCESS(1) + "vld4.8 {d8, d10, d12, d14}, [%1]! \n" // load 8 more BGRA pixels. + MEMACCESS(1) + "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) + MEMACCESS(2) + "vst1.8 {d0}, [%2]! \n" // store 8 pixels U. + MEMACCESS(3) + "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" + ); +} +#endif // HAS_BGRATOUVROW_NEON + +#ifdef HAS_ABGRTOUVROW_NEON +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" + MEMACCESS(0) + "vld4.8 {d0, d2, d4, d6}, [%0]! \n" // load 8 ABGR pixels. + MEMACCESS(0) + "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. + MEMACCESS(1) + "vld4.8 {d8, d10, d12, d14}, [%1]! \n" // load 8 more ABGR pixels. + MEMACCESS(1) + "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) + MEMACCESS(2) + "vst1.8 {d0}, [%2]! \n" // store 8 pixels U. + MEMACCESS(3) + "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" + ); +} +#endif // HAS_ABGRTOUVROW_NEON + +#ifdef HAS_RGBATOUVROW_NEON +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" + MEMACCESS(0) + "vld4.8 {d0, d2, d4, d6}, [%0]! \n" // load 8 RGBA pixels. + MEMACCESS(0) + "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. + MEMACCESS(1) + "vld4.8 {d8, d10, d12, d14}, [%1]! \n" // load 8 more RGBA pixels. + MEMACCESS(1) + "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) + MEMACCESS(2) + "vst1.8 {d0}, [%2]! \n" // store 8 pixels U. + MEMACCESS(3) + "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" + ); +} +#endif // HAS_RGBATOUVROW_NEON + +#ifdef HAS_RGB24TOUVROW_NEON +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" + MEMACCESS(0) + "vld3.8 {d0, d2, d4}, [%0]! \n" // load 8 RGB24 pixels. + MEMACCESS(0) + "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. + MEMACCESS(1) + "vld3.8 {d8, d10, d12}, [%1]! \n" // load 8 more RGB24 pixels. + MEMACCESS(1) + "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) + MEMACCESS(2) + "vst1.8 {d0}, [%2]! \n" // store 8 pixels U. + MEMACCESS(3) + "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" + ); +} +#endif // HAS_RGB24TOUVROW_NEON + +#ifdef HAS_RAWTOUVROW_NEON +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" + MEMACCESS(0) + "vld3.8 {d0, d2, d4}, [%0]! \n" // load 8 RAW pixels. + MEMACCESS(0) + "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. + MEMACCESS(1) + "vld3.8 {d8, d10, d12}, [%1]! \n" // load 8 more RAW pixels. + MEMACCESS(1) + "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) + MEMACCESS(2) + "vst1.8 {d0}, [%2]! \n" // store 8 pixels U. + MEMACCESS(3) + "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" + ); +} +#endif // HAS_RAWTOUVROW_NEON + +// 16x2 pixels -> 8x1. pix is number of argb pixels. e.g. 16. +#ifdef HAS_RGB565TOUVROW_NEON +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" + MEMACCESS(0) + "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. + MEMACCESS(0) + "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. + + MEMACCESS(1) + "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. + MEMACCESS(1) + "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 + MEMACCESS(2) + "vst1.8 {d0}, [%2]! \n" // store 8 pixels U. + MEMACCESS(3) + "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" + ); +} +#endif // HAS_RGB565TOUVROW_NEON + +// 16x2 pixels -> 8x1. pix is number of argb pixels. e.g. 16. +#ifdef HAS_ARGB1555TOUVROW_NEON +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" + MEMACCESS(0) + "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. + MEMACCESS(0) + "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. + + MEMACCESS(1) + "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. + MEMACCESS(1) + "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 + MEMACCESS(2) + "vst1.8 {d0}, [%2]! \n" // store 8 pixels U. + MEMACCESS(3) + "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" + ); +} +#endif // HAS_ARGB1555TOUVROW_NEON + +// 16x2 pixels -> 8x1. pix is number of argb pixels. e.g. 16. +#ifdef HAS_ARGB4444TOUVROW_NEON +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" + MEMACCESS(0) + "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. + MEMACCESS(0) + "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. + + MEMACCESS(1) + "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. + MEMACCESS(1) + "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 + MEMACCESS(2) + "vst1.8 {d0}, [%2]! \n" // store 8 pixels U. + MEMACCESS(3) + "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" + ); +} +#endif // HAS_ARGB4444TOUVROW_NEON + +#ifdef HAS_RGB565TOYROW_NEON +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" + MEMACCESS(0) + "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" + MEMACCESS(1) + "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" + ); +} +#endif // HAS_RGB565TOYROW_NEON + +#ifdef HAS_ARGB1555TOYROW_NEON +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" + MEMACCESS(0) + "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" + MEMACCESS(1) + "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" + ); +} +#endif // HAS_ARGB1555TOYROW_NEON + +#ifdef HAS_ARGB4444TOYROW_NEON +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" + MEMACCESS(0) + "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" + MEMACCESS(1) + "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" + ); +} +#endif // HAS_ARGB4444TOYROW_NEON + +#ifdef HAS_BGRATOYROW_NEON +void BGRAToYRow_NEON(const uint8* src_bgra, uint8* dst_y, int pix) { + 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 + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b-v3.8b}, [%0], #32 \n" // load 8 pixels of BGRA. + "subs %2, %2, #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. + "bgt 1b \n" + : "+r"(src_bgra), // %0 + "+r"(dst_y), // %1 + "+r"(pix) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v16" + ); +} +#endif // HAS_BGRATOYROW_NEON + +#ifdef HAS_ABGRTOYROW_NEON +void ABGRToYRow_NEON(const uint8* src_abgr, uint8* dst_y, int pix) { + 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 + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b-v3.8b}, [%0], #32 \n" // load 8 pixels of ABGR. + "subs %2, %2, #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. + "bgt 1b \n" + : "+r"(src_abgr), // %0 + "+r"(dst_y), // %1 + "+r"(pix) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v16" + ); +} +#endif // HAS_ABGRTOYROW_NEON + +#ifdef HAS_RGBATOYROW_NEON +void RGBAToYRow_NEON(const uint8* src_rgba, uint8* dst_y, int pix) { + 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 + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b-v3.8b}, [%0], #32 \n" // load 8 pixels of RGBA. + "subs %2, %2, #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. + "bgt 1b \n" + : "+r"(src_rgba), // %0 + "+r"(dst_y), // %1 + "+r"(pix) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v16" + ); +} +#endif // HAS_RGBATOYROW_NEON + +#ifdef HAS_RGB24TOYROW_NEON +void RGB24ToYRow_NEON(const uint8* src_rgb24, uint8* dst_y, int pix) { + 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 + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld3 {v0.8b-v2.8b}, [%0], #24 \n" // load 8 pixels of RGB24. + "subs %2, %2, #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. + "bgt 1b \n" + : "+r"(src_rgb24), // %0 + "+r"(dst_y), // %1 + "+r"(pix) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v16" + ); +} +#endif // HAS_RGB24TOYROW_NEON + +#ifdef HAS_RAWTOYROW_NEON +void RAWToYRow_NEON(const uint8* src_raw, uint8* dst_y, int pix) { + 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 + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld3 {v0.8b-v2.8b}, [%0], #24 \n" // load 8 pixels of RAW. + "subs %2, %2, #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. + "bgt 1b \n" + : "+r"(src_raw), // %0 + "+r"(dst_y), // %1 + "+r"(pix) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v16" + ); +} +#endif // HAS_RAWTOYROW_NEON + +// Bilinear filter 16x2 -> 16x1 +#ifdef HAS_INTERPOLATEROW_NEON +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 %4, #0 \n" + "beq 100f \n" + "cmp %4, #64 \n" + "beq 75f \n" + "cmp %4, #128 \n" + "beq 50f \n" + "cmp %4, #192 \n" + "beq 25f \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 %3, %3, #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" + "bgt 1b \n" + "b 99f \n" + + // Blend 25 / 75. + "25: \n" + MEMACCESS(1) + "ld1 {v0.16b}, [%1], #16 \n" + MEMACCESS(2) + "ld1 {v1.16b}, [%2], #16 \n" + "subs %3, %3, #16 \n" + "urhadd v0.16b, v0.16b, v1.16b \n" + "urhadd v0.16b, v0.16b, v1.16b \n" + MEMACCESS(0) + "st1 {v0.16b}, [%0], #16 \n" + "bgt 25b \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 %3, %3, #16 \n" + "urhadd v0.16b, v0.16b, v1.16b \n" + MEMACCESS(0) + "st1 {v0.16b}, [%0], #16 \n" + "bgt 50b \n" + "b 99f \n" + + // Blend 75 / 25. + "75: \n" + MEMACCESS(1) + "ld1 {v1.16b}, [%1], #16 \n" + MEMACCESS(2) + "ld1 {v0.16b}, [%2], #16 \n" + "subs %3, %3, #16 \n" + "urhadd v0.16b, v0.16b, v1.16b \n" + "urhadd v0.16b, v0.16b, v1.16b \n" + MEMACCESS(0) + "st1 {v0.16b}, [%0], #16 \n" + "bgt 75b \n" + "b 99f \n" + + // Blend 100 / 0 - Copy row unchanged. + "100: \n" + MEMACCESS(1) + "ld1 {v0.16b}, [%1], #16 \n" + "subs %3, %3, #16 \n" + MEMACCESS(0) + "st1 {v0.16b}, [%0], #16 \n" + "bgt 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" + ); +} +#endif // HAS_INTERPOLATEROW_NEON + +// dr * (256 - sa) / 256 + sr = dr - dr * sa / 256 + sr +#ifdef HAS_ARGBBLENDROW_NEON +void ARGBBlendRow_NEON(const uint8* src_argb0, const uint8* src_argb1, + uint8* dst_argb, int width) { + asm volatile ( + "subs %3, %3, #8 \n" + "blt 89f \n" + // Blend 8 pixels. + "8: \n" + MEMACCESS(0) + "ld4 {v0.8b-v3.8b}, [%0], #32 \n" // load 8 pixels of ARGB0. + MEMACCESS(1) + "ld4 {v4.8b-v7.8b}, [%1], #32 \n" // load 8 pixels of ARGB1. + "subs %3, %3, #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-v3.8b}, [%2], #32 \n" // store 8 pixels of ARGB. + "bge 8b \n" + + "89: \n" + "adds %3, %3, #8-1 \n" + "blt 99f \n" + + // Blend 1 pixels. + "1: \n" + MEMACCESS(0) + "ld4 {v0.b-v3.b}[0], [%0], #4 \n" // load 1 pixel ARGB0. + MEMACCESS(1) + "ld4 {v4.b-v7.b}[0], [%1], #4 \n" // load 1 pixel ARGB1. + "subs %3, %3, #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-v3.b}[0], [%2], #4 \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", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", + "v16", "v17", "v18" + ); +} +#endif // HAS_ARGBBLENDROW_NEON + +// Attenuate 8 pixels at a time. +#ifdef HAS_ARGBATTENUATEROW_NEON +void ARGBAttenuateRow_NEON(const uint8* src_argb, uint8* dst_argb, int width) { + asm volatile ( + // Attenuate 8 pixels. + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b-v3.8b}, [%0], #32 \n" // load 8 pixels of ARGB. + "subs %2, %2, #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-v3.8b}, [%1], #32 \n" // store 8 pixels of ARGB. + "bgt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_argb), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6" + ); +} +#endif // HAS_ARGBATTENUATEROW_NEON + +// Quantize 8 ARGB pixels (32 bytes). +// dst = (dst * scale >> 16) * interval_size + interval_offset; +#ifdef HAS_ARGBQUANTIZEROW_NEON +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. + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b-v3.8b}, [%0] \n" // load 8 pixels of ARGB. + "subs %1, %1, #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-v3.8b}, [%0], #32 \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", "v0", "v1", "v2", "v3", "v4", "v5", "v6" + ); +} +#endif // HAS_ARGBQUANTIZEROW_NEON + +// 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. +#ifdef HAS_ARGBSHADEROW_NEON +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. + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld4 {v4.8b-v7.8b}, [%0], #32 \n" // load 8 pixels of ARGB. + "subs %2, %2, #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-v7.8b}, [%1], #32 \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", "v0", "v4", "v5", "v6", "v7" + ); +} +#endif // HAS_ARGBSHADEROW_NEON + +// 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; +#ifdef HAS_ARGBGRAYROW_NEON +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 + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b-v3.8b}, [%0], #32 \n" // load 8 ARGB pixels. + "subs %2, %2, #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 + "mov v1.8b, v0.8b \n" // G + "mov v2.8b, v0.8b \n" // R + MEMACCESS(1) + "st4 {v0.8b-v3.8b}, [%1], #32 \n" // store 8 ARGB pixels. + "bgt 1b \n" + : "+r"(src_argb), // %0 + "+r"(dst_argb), // %1 + "+r"(width) // %2 + : + : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v24", "v25", "v26" + ); +} +#endif // HAS_ARGBGRAYROW_NEON + +// 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 + +#ifdef HAS_ARGBSEPIAROW_NEON +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 + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld4 {v0.8b-v3.8b}, [%0] \n" // load 8 ARGB pixels. + "subs %1, %1, #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-v3.8b}, [%0], #32 \n" // store 8 ARGB pixels. + "bgt 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" + ); +} +#endif // HAS_ARGBSEPIAROW_NEON + +// 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. +#ifdef HAS_ARGBCOLORMATRIXROW_NEON +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. + + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld4 {v16.8b-v19.8b}, [%0], #32 \n" // load 8 ARGB pixels. + "subs %2, %2, #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-v19.8b}, [%1], #32 \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", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v16", "v17", + "v18", "v19", "v22", "v23", "v24", "v25" + ); +} +#endif // HAS_ARGBCOLORMATRIXROW_NEON + +// TODO(fbarchard): fix vqshrun in ARGBMultiplyRow_NEON and reenable. +// Multiply 2 rows of ARGB pixels together, 8 pixels at a time. +#ifdef HAS_ARGBMULTIPLYROW_NEON +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" + MEMACCESS(0) + "ld4 {v0.8b-v3.8b}, [%0], #32 \n" // load 8 ARGB pixels. + MEMACCESS(1) + "ld4 {v4.8b-v7.8b}, [%1], #32 \n" // load 8 more ARGB pixels. + "subs %3, %3, #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-v3.8b}, [%2], #32 \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", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7" + ); +} +#endif // HAS_ARGBMULTIPLYROW_NEON + +// Add 2 rows of ARGB pixels together, 8 pixels at a time. +#ifdef HAS_ARGBADDROW_NEON +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" + MEMACCESS(0) + "ld4 {v0.8b-v3.8b}, [%0], #32 \n" // load 8 ARGB pixels. + MEMACCESS(1) + "ld4 {v4.8b-v7.8b}, [%1], #32 \n" // load 8 more ARGB pixels. + "subs %3, %3, #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-v3.8b}, [%2], #32 \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", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7" + ); +} +#endif // HAS_ARGBADDROW_NEON + +// Subtract 2 rows of ARGB pixels, 8 pixels at a time. +#ifdef HAS_ARGBSUBTRACTROW_NEON +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" + MEMACCESS(0) + "ld4 {v0.8b-v3.8b}, [%0], #32 \n" // load 8 ARGB pixels. + MEMACCESS(1) + "ld4 {v4.8b-v7.8b}, [%1], #32 \n" // load 8 more ARGB pixels. + "subs %3, %3, #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-v3.8b}, [%2], #32 \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", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7" + ); +} +#endif // HAS_ARGBSUBTRACTROW_NEON + +// Adds Sobel X and Sobel Y and stores Sobel into ARGB. +// A = 255 +// R = Sobel +// G = Sobel +// B = Sobel +#ifdef HAS_SOBELROW_NEON +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. + ".p2align 2 \n" + "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 %3, %3, #8 \n" // 8 processed per loop. + "uqadd v0.8b, v0.8b, v1.8b \n" // add + "mov v1.8b, v0.8b \n" + "mov v2.8b, v0.8b \n" + MEMACCESS(2) + "st4 {v0.8b-v3.8b}, [%2], #32 \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", "v0", "v1", "v2", "v3" + ); +} +#endif // HAS_SOBELROW_NEON + +// Adds Sobel X and Sobel Y and stores Sobel into plane. +#ifdef HAS_SOBELTOPLANEROW_NEON +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" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" // load 16 sobelx. + MEMACCESS(1) + "ld1 {v1.16b}, [%1], #16 \n" // load 16 sobely. + "subs %3, %3, #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. + "bgt 1b \n" + : "+r"(src_sobelx), // %0 + "+r"(src_sobely), // %1 + "+r"(dst_y), // %2 + "+r"(width) // %3 + : + : "cc", "memory", "v0", "v1" + ); +} +#endif // HAS_SOBELTOPLANEROW_NEON + +// Mixes Sobel X, Sobel Y and Sobel into ARGB. +// A = 255 +// R = Sobel X +// G = Sobel +// B = Sobel Y +#ifdef HAS_SOBELXYROW_NEON +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. + ".p2align 2 \n" + "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 %3, %3, #8 \n" // 8 processed per loop. + "uqadd v1.8b, v0.8b, v2.8b \n" // add + MEMACCESS(2) + "st4 {v0.8b-v3.8b}, [%2], #32 \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", "v0", "v1", "v2", "v3" + ); +} +#endif // HAS_SOBELXYROW_NEON + +// SobelX as a matrix is +// -1 0 1 +// -2 0 2 +// -1 0 1 +#ifdef HAS_SOBELXROW_NEON +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" + 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 %4, %4, #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 + "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", "v0", "v1", "v2", "v3" // Clobber List + ); +} +#endif // HAS_SOBELXROW_NEON + +// SobelY as a matrix is +// -1 -2 -1 +// 0 0 0 +// 1 2 1 +#ifdef HAS_SOBELYROW_NEON +void SobelYRow_NEON(const uint8* src_y0, const uint8* src_y1, + uint8* dst_sobely, int width) { + asm volatile ( + ".p2align 2 \n" + "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 %3, %3, #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 + "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", "v0", "v1", "v2", "v3" // Clobber List + ); +} +#endif // HAS_SOBELYROW_NEON +#endif // !defined(LIBYUV_DISABLE_NEON) && defined(__aarch64__) + +#ifdef __cplusplus +} // extern "C" +} // namespace libyuv +#endif |