/* * Copyright 2024 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 #if !defined(LIBYUV_DISABLE_SVE) && defined(__aarch64__) #define READYUV444_SVE \ "ld1b {z0.h}, p1/z, [%[src_y]] \n" \ "ld1b {z1.h}, p1/z, [%[src_u]] \n" \ "ld1b {z2.h}, p1/z, [%[src_v]] \n" \ "add %[src_y], %[src_y], %[vl] \n" \ "add %[src_u], %[src_u], %[vl] \n" \ "add %[src_v], %[src_v], %[vl] \n" \ "prfm pldl1keep, [%[src_y], 448] \n" \ "prfm pldl1keep, [%[src_u], 448] \n" \ "trn1 z0.b, z0.b, z0.b \n" \ "prfm pldl1keep, [%[src_v], 448] \n" #define READYUV422_SVE \ "ld1b {z0.h}, p1/z, [%[src_y]] \n" \ "ld1b {z1.s}, p1/z, [%[src_u]] \n" \ "ld1b {z2.s}, p1/z, [%[src_v]] \n" \ "inch %[src_y] \n" \ "incw %[src_u] \n" \ "incw %[src_v] \n" \ "prfm pldl1keep, [%[src_y], 448] \n" \ "prfm pldl1keep, [%[src_u], 128] \n" \ "prfm pldl1keep, [%[src_v], 128] \n" \ "trn1 z0.b, z0.b, z0.b \n" \ "trn1 z1.h, z1.h, z1.h \n" \ "trn1 z2.h, z2.h, z2.h \n" #define YUVTORGB_SVE_SETUP \ "ld1rb {z28.h}, p0/z, [%[kUVCoeff], #0] \n" \ "ld1rb {z29.h}, p0/z, [%[kUVCoeff], #1] \n" \ "ld1rb {z30.h}, p0/z, [%[kUVCoeff], #2] \n" \ "ld1rb {z31.h}, p0/z, [%[kUVCoeff], #3] \n" \ "ld1rh {z24.h}, p0/z, [%[kRGBCoeffBias], #0] \n" \ "ld1rh {z25.h}, p0/z, [%[kRGBCoeffBias], #2] \n" \ "ld1rh {z26.h}, p0/z, [%[kRGBCoeffBias], #4] \n" \ "ld1rh {z27.h}, p0/z, [%[kRGBCoeffBias], #6] \n" #define I4XXTORGB_SVE \ "umulh z0.h, z24.h, z0.h \n" /* Y */ \ "mul z6.h, z30.h, z1.h \n" \ "mul z4.h, z28.h, z1.h \n" /* DB */ \ "mul z5.h, z29.h, z2.h \n" /* DR */ \ "mla z6.h, p0/m, z31.h, z2.h \n" /* DG */ \ "add z17.h, z0.h, z26.h \n" /* G */ \ "add z16.h, z0.h, z4.h \n" /* B */ \ "add z18.h, z0.h, z5.h \n" /* R */ \ "uqsub z17.h, z17.h, z6.h \n" /* G */ \ "uqsub z16.h, z16.h, z25.h \n" /* B */ \ "uqsub z18.h, z18.h, z27.h \n" /* R */ // Convert from 2.14 fixed point RGB to 8 bit RGBA, interleaving as BG and RA // pairs to allow us to use ST2 for storing rather than ST4. #define RGBTORGBA8_SVE \ "uqshrnb z16.b, z16.h, #6 \n" \ "uqshrnb z18.b, z18.h, #6 \n" \ "uqshrnt z16.b, z17.h, #6 \n" \ "trn1 z17.b, z18.b, z19.b \n" #define YUVTORGB_SVE_REGS \ "z0", "z1", "z2", "z3", "z4", "z5", "z6", "z7", "z16", "z17", "z18", "z19", \ "z24", "z25", "z26", "z27", "z28", "z29", "z30", "z31", "p0", "p1" void I444ToARGBRow_SVE2(const uint8_t* src_y, const uint8_t* src_u, const uint8_t* src_v, uint8_t* dst_argb, const struct YuvConstants* yuvconstants, int width) { uint64_t vl; asm volatile( "cnth %[vl] \n" "ptrue p0.b \n" YUVTORGB_SVE_SETUP "dup z19.b, #255 \n" /* A */ "cmp %w[width], %w[vl] \n" "b.le 2f \n" // Run bulk of computation with an all-true predicate to avoid predicate // generation overhead. "ptrue p1.h \n" "1: \n" READYUV444_SVE I4XXTORGB_SVE RGBTORGBA8_SVE "sub %w[width], %w[width], %w[vl] \n" "st2h {z16.h, z17.h}, p1, [%[dst_argb]] \n" "add %[dst_argb], %[dst_argb], %[vl], lsl #2 \n" "cmp %w[width], %w[vl] \n" "b.gt 1b \n" // Calculate a predicate for the final iteration to deal with the tail. "2: \n" "whilelt p1.h, wzr, %w[width] \n" READYUV444_SVE I4XXTORGB_SVE RGBTORGBA8_SVE "st2h {z16.h, z17.h}, p1, [%[dst_argb]] \n" : [src_y] "+r"(src_y), // %[src_y] [src_u] "+r"(src_u), // %[src_u] [src_v] "+r"(src_v), // %[src_v] [dst_argb] "+r"(dst_argb), // %[dst_argb] [width] "+r"(width), // %[width] [vl] "=&r"(vl) // %[vl] : [kUVCoeff] "r"(&yuvconstants->kUVCoeff), // %[kUVCoeff] [kRGBCoeffBias] "r"(&yuvconstants->kRGBCoeffBias) // %[kRGBCoeffBias] : "cc", "memory", YUVTORGB_SVE_REGS); } void I422ToARGBRow_SVE2(const uint8_t* src_y, const uint8_t* src_u, const uint8_t* src_v, uint8_t* dst_argb, const struct YuvConstants* yuvconstants, int width) { uint64_t vl; asm volatile( "cnth %[vl] \n" "ptrue p0.b \n" YUVTORGB_SVE_SETUP "dup z19.b, #255 \n" /* A */ "cmp %w[width], %w[vl] \n" "b.le 2f \n" // Run bulk of computation with an all-true predicate to avoid predicate // generation overhead. "ptrue p1.h \n" "sub %w[width], %w[width], %w[vl] \n" "1: \n" READYUV422_SVE I4XXTORGB_SVE RGBTORGBA8_SVE "subs %w[width], %w[width], %w[vl] \n" "st2h {z16.h, z17.h}, p1, [%[dst_argb]] \n" "add %[dst_argb], %[dst_argb], %[vl], lsl #2 \n" "b.gt 1b \n" "add %w[width], %w[width], %w[vl] \n" // Calculate a predicate for the final iteration to deal with the tail. "2: \n" "whilelt p1.h, wzr, %w[width] \n" READYUV422_SVE I4XXTORGB_SVE RGBTORGBA8_SVE "st2h {z16.h, z17.h}, p1, [%[dst_argb]] \n" : [src_y] "+r"(src_y), // %[src_y] [src_u] "+r"(src_u), // %[src_u] [src_v] "+r"(src_v), // %[src_v] [dst_argb] "+r"(dst_argb), // %[dst_argb] [width] "+r"(width), // %[width] [vl] "=&r"(vl) // %[vl] : [kUVCoeff] "r"(&yuvconstants->kUVCoeff), // %[kUVCoeff] [kRGBCoeffBias] "r"(&yuvconstants->kRGBCoeffBias) // %[kRGBCoeffBias] : "cc", "memory", YUVTORGB_SVE_REGS); } void I444AlphaToARGBRow_SVE2(const uint8_t* src_y, const uint8_t* src_u, const uint8_t* src_v, const uint8_t* src_a, uint8_t* dst_argb, const struct YuvConstants* yuvconstants, int width) { uint64_t vl; asm("cnth %[vl] \n" "ptrue p0.b \n" YUVTORGB_SVE_SETUP "subs %w[width], %w[width], %w[vl] \n" "b.lt 2f \n" // Run bulk of computation with an all-true predicate to avoid predicate // generation overhead. "ptrue p1.h \n" "1: \n" READYUV444_SVE "ld1b {z19.h}, p1/z, [%[src_a]] \n" // A "add %[src_a], %[src_a], %[vl] \n" I4XXTORGB_SVE RGBTORGBA8_SVE "subs %w[width], %w[width], %w[vl] \n" "st2h {z16.h, z17.h}, p1, [%[dst_argb]] \n" "add %[dst_argb], %[dst_argb], %[vl], lsl #2 \n" "b.ge 1b \n" "2: \n" "adds %w[width], %w[width], %w[vl] \n" "b.eq 99f \n" // Calculate a predicate for the final iteration to deal with the tail. "whilelt p1.h, wzr, %w[width] \n" READYUV444_SVE "ld1b {z19.h}, p1/z, [%[src_a]] \n" // A I4XXTORGB_SVE RGBTORGBA8_SVE "st2h {z16.h, z17.h}, p1, [%[dst_argb]] \n" "99: \n" : [src_y] "+r"(src_y), // %[src_y] [src_u] "+r"(src_u), // %[src_u] [src_v] "+r"(src_v), // %[src_v] [src_a] "+r"(src_a), // %[src_a] [dst_argb] "+r"(dst_argb), // %[dst_argb] [width] "+r"(width), // %[width] [vl] "=&r"(vl) // %[vl] : [kUVCoeff] "r"(&yuvconstants->kUVCoeff), // %[kUVCoeff] [kRGBCoeffBias] "r"(&yuvconstants->kRGBCoeffBias) // %[kRGBCoeffBias] : "cc", "memory", YUVTORGB_SVE_REGS); } #endif // !defined(LIBYUV_DISABLE_SVE) && defined(__aarch64__) #ifdef __cplusplus } // extern "C" } // namespace libyuv #endif