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libyuv/source/row_rvv.cc
Frank Barchard 47ba8e2160 Handle SsimWindowRow remainder in SIMD for AVX512BW, SVE2, SME, RVV 
Because each 8x8 SSIM window spans two 4x4 tiles horizontally,
num_windows = (width - 5) >> 2, so aligned widths that are multiples
of 64 (e.g. 64, 128, 640, 1280, 1920) always have remainder 15
(num_windows & 15 == 15).

- Update SsimWindowRow_AVX512BW (compare_gcc.cc and compare_win.cc)
  to handle any remainder (1..15 windows) via k-masking (load_mask
  for the (rem + 1) * 4 tile words and win_mask for the rem window
  scores) and set win_simd_size = 1.
- Add SsimWindowRow_SVE2, SsimWindowRow_SME, and SsimWindowRow_RVV
  with win_simd_size = 1 using predicated/vl-controlled loops so no
  C code (Ssim4x4Row_C or SsimWindowRow_C) is executed on AVX-512BW,
  SVE2, SME, or RVV CPUs for any image dimensions.
- Remove LIBYUV_TARGET_AVX512BW __attribute__((target(...))) from
  compare_gcc.cc and GCC_HAS_AVX512 from cpu_support.h, using %%zmm0
  directly in inline assembly.

SSIM Performance (Before vs After):
uArch / Target               Before      After   Speedup
--------------------------  ---------  ---------  -------
Coral RVV Verilator (64x16) 5302 cyc   2219 cyc    2.39x
Coral RVV WindowRow (15w)   1854 cyc    308 cyc    6.02x
Apple M6 SME (64x36 10kx)   16.41 ms    4.69 ms    3.50x
Apple M6 SME (720p 1000x)  350.76 ms   66.09 ms    5.31x

R=rrwinterton@gmail.com

Bug: libyuv:352521931
Change-Id: Ic7d55184c60611af4a57d113cc4ee3d211debadf
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8621918
Commit-Queue: Frank Barchard <fbarchard@google.com>
Reviewed-by: richard winterton <rrwinterton@gmail.com>
2026-10-20 21:39:37 -07:00

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/*
* Copyright 2023 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.
*/
/*
* Copyright (c) 2023 SiFive, Inc. All rights reserved.
*
* Contributed by Darren Hsieh <darren.hsieh@sifive.com>
* Contributed by Bruce Lai <bruce.lai@sifive.com>
*/
#include "libyuv/compare_row.h"
#include "libyuv/row.h"
// Note: every register written by an inline asm block (vector, general
// purpose, mask/predicate, "cc" for flags and "memory" for stores) must be
// listed in its clobber list, even when the ABI treats it as caller-saved.
// With LTO/LTCG the compiler may keep values live in any register across the
// asm statement, and other OS ABIs (e.g. Windows) differ in which registers
// are callee-saved. List "memory" first, then "cc", then registers.
// This module is for RVV (RISC-V Vector extension)
#if !defined(LIBYUV_DISABLE_RVV) && defined(__riscv_vector)
#include <assert.h>
// vsetvli/vsetivli write the vl and vtype CSRs. Only "vl" is declared, and
// only for GCC; clang historically rejected it. The "vtype" register is
// intentionally not declared, and whether it should be is unresolved.
// TODO(fbarchard): consider adding "vtype" (and "vl" for clang) to the
// clobber list once confirmed with compiler maintainers.
#ifndef RVV_VL_CLOBBER
#ifdef __clang__
#define RVV_VL_CLOBBER
#else
#define RVV_VL_CLOBBER "vl",
#endif
#endif
#ifdef __cplusplus
namespace libyuv {
extern "C" {
#endif
// Fill YUV -> RGB conversion constants into registers
// NOTE: To match behavior on other platforms, vxrm (fixed-point rounding mode
// register) is set to round-to-nearest-up mode(0).
#define YUVTORGB_SETUP \
"csrwi vxrm, 0 \n" \
"lbu %[ub], 0(%[yuvconst]) \n" \
"lbu %[vr], 1(%[yuvconst]) \n" \
"lbu %[ug], 2(%[yuvconst]) \n" \
"lbu %[vg], 3(%[yuvconst]) \n" \
"lhu %[yg], 16(%[yuvconst])\n" \
"lh %[bb], 18(%[yuvconst])\n" \
"lh %[bg], 20(%[yuvconst])\n" \
"lh %[br], 22(%[yuvconst])\n" \
"addi %[bb], %[bb], 32 \n" \
"addi %[bg], %[bg], -32 \n" \
"addi %[br], %[br], 32 \n" \
"li %[k0101], 0x0101 \n"
// Fill YUV -> AR30 conversion constants into registers
#define YUVTORGB_SETUP_AR30 \
"csrwi vxrm, 0 \n" \
"lbu %[ub], 0(%[yuvconst]) \n" \
"lbu %[vr], 1(%[yuvconst]) \n" \
"lbu %[ug], 2(%[yuvconst]) \n" \
"lbu %[vg], 3(%[yuvconst]) \n" \
"lhu %[yg], 16(%[yuvconst])\n" \
"lh %[bb], 18(%[yuvconst])\n" \
"lh %[bg], 20(%[yuvconst])\n" \
"lh %[br], 22(%[yuvconst])\n" \
"addi %[bb], %[bb], 24 \n" \
"addi %[bg], %[bg], -24 \n" \
"addi %[br], %[br], 24 \n" \
"li %[k0101], 0x0101 \n"
// Read [2*VLEN/8] Y, [VLEN/8] U and [VLEN/8] V from 422
#define READYUV422 \
"addi %[vl], %[w], 1 \n" \
"srli %[vl], %[vl], 1 \n" \
"vsetvli %[vl], %[vl], e8, m1, ta, ma \n" \
"vle8.v v0, (%[src_u]) \n" \
"vle8.v v1, (%[src_v]) \n" \
"vwcvtu.x.x.v v2, v0 \n" \
"vwcvtu.x.x.v v4, v1 \n" \
"vsetvli zero, zero, e16, m2, ta, ma \n" \
"vmul.vx v2, v2, %[k0101] \n" \
"vmul.vx v4, v4, %[k0101] \n" \
"vsetvli %[vl], %[w], e8, m2, ta, ma \n" \
"vle8.v v0, (%[src_y]) \n" \
"vwcvtu.x.x.v v8, v0 \n"
// Read [2*VLEN/8] Y, [2*VLEN/8] U, and [2*VLEN/8] V from 444
#define READYUV444 \
"vsetvli %[vl], %[w], e8, m2, ta, ma \n" \
"vle8.v v0, (%[src_y]) \n" \
"vle8.v v2, (%[src_u]) \n" \
"vle8.v v4, (%[src_v]) \n" \
"vwcvtu.x.x.v v8, v0 \n"
// Read [2*VLEN/8] Y from src_y; Read [VLEN/8] U and [VLEN/8] V from src_uv
#define READNV12 \
"addi %[vl], %[w], 1 \n" \
"srli %[vl], %[vl], 1 \n" \
"vsetvli %[vl], %[vl], e8, m1, ta, ma \n" \
"vlseg2e8.v v0, (%[src_uv]) \n" \
"vwcvtu.x.x.v v2, v0 \n" \
"vwcvtu.x.x.v v4, v1 \n" \
"vsetvli zero, zero, e16, m2, ta, ma \n" \
"vmul.vx v2, v2, %[k0101] \n" \
"vmul.vx v4, v4, %[k0101] \n" \
"vsetvli %[vl], %[w], e8, m2, ta, ma \n" \
"vle8.v v0, (%[src_y]) \n" \
"vwcvtu.x.x.v v8, v0 \n"
// Read 2*[VLEN/8] Y from src_y; Read [VLEN/8] U and [VLEN/8] V from src_vu
#define READNV21 \
"addi %[vl], %[w], 1 \n" \
"srli %[vl], %[vl], 1 \n" \
"vsetvli %[vl], %[vl], e8, m1, ta, ma \n" \
"vlseg2e8.v v0, (%[src_vu]) \n" \
"vwcvtu.x.x.v v4, v0 \n" \
"vwcvtu.x.x.v v2, v1 \n" \
"vsetvli zero, zero, e16, m2, ta, ma \n" \
"vmul.vx v2, v2, %[k0101] \n" \
"vmul.vx v4, v4, %[k0101] \n" \
"vsetvli %[vl], %[w], e8, m2, ta, ma \n" \
"vle8.v v0, (%[src_y]) \n" \
"vwcvtu.x.x.v v8, v0 \n"
// Convert from YUV to fixed point RGB
#define YUVTORGB \
"vwmulu.vx v12, v2, %[ug] \n" \
"vwmaccu.vx v12, %[vg], v4 \n" \
"vwmulu.vx v0, v2, %[ub] \n" \
"vsetvli zero, zero, e16, m4, ta, ma \n" \
"vmul.vx v8, v8, %[k0101] \n" \
"vmulhu.vx v8, v8, %[yg] \n" \
"vadd.vx v16, v8, %[bg] \n" \
"vadd.vv v0, v8, v0 \n" \
"vsetvli zero, zero, e8, m2, ta, ma \n" \
"vwmaccu.vx v8, %[vr], v4 \n" \
"vsetvli zero, zero, e16, m4, ta, ma \n" \
"vssubu.vv v12, v16, v12 \n" \
"vssubu.vx v0, v0, %[bb] \n" \
"vssubu.vx v8, v8, %[br] \n"
// Convert from fixed point RGB To 8 bit RGB
#define RGBTORGB8 \
"vsetvli zero, zero, e8, m2, ta, ma \n" \
"vnclipu.wi v26, v12, 6 \n" \
"vnclipu.wi v24, v0, 6 \n" \
"vnclipu.wi v28, v8, 6 \n"
#define YUVTORGB_REGS \
"v0", "v1", "v2", "v3", "v4", "v5", "v8", "v9", "v10", "v11", "v12", "v13", \
"v14", "v15", "v16", "v17", "v18", "v19", "v24", "v25", "v26", "v27", \
"v28", "v29"
#ifdef HAS_ARGBTOAR64ROW_RVV
void ARGBToAR64Row_RVV(const uint8_t* src_argb, uint16_t* dst_ar64, int width) {
int vl;
asm volatile(
"slli %[w], %[w], 2 \n"
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vle8.v v16, (%[src_argb]) \n"
"vwcvtu.x.x.v v8, v16 \n"
"vsetvli zero, zero, e16, m4, ta, ma \n"
"vmul.vx v8, v8, %[k0101] \n"
"vse16.v v8, (%[dst_ar64]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[src_argb], %[src_argb], %[vl]\n"
"slli %[vl], %[vl], 1 \n"
"add %[dst_ar64], %[dst_ar64], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_argb] "+r"(src_argb), // %[src_argb]
[dst_ar64] "+r"(dst_ar64), // %[dst_ar64]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
: [k0101] "r"(0x0101)
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v16", "v17");
}
#endif
#ifdef HAS_ARGBTOAB64ROW_RVV
void ARGBToAB64Row_RVV(const uint8_t* src_argb, uint16_t* dst_ab64, int width) {
int vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, m1, ta, ma \n"
"vlseg4e8.v v4, (%[src_argb]) \n"
"vwcvtu.x.x.v v12, v4 \n"
"vwcvtu.x.x.v v10, v5 \n"
"vwcvtu.x.x.v v8, v6 \n"
"vwcvtu.x.x.v v14, v7 \n"
"vsetvli zero, zero, e16, m2, ta, ma \n"
"vmul.vx v8, v8, %[k0101] \n"
"vmul.vx v10, v10, %[k0101] \n"
"vmul.vx v12, v12, %[k0101] \n"
"vmul.vx v14, v14, %[k0101] \n"
"vsseg4e16.v v8, (%[dst_ab64]) \n"
"sub %[w], %[w], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[src_argb], %[src_argb], %[vl]\n"
"slli %[vl], %[vl], 1 \n"
"add %[dst_ab64], %[dst_ab64], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_argb] "+r"(src_argb), // %[src_argb]
[dst_ab64] "+r"(dst_ab64), // %[dst_ab64]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
: [k0101] "r"(0x0101)
: RVV_VL_CLOBBER "memory", "v4", "v5", "v6", "v7", "v8", "v9", "v10",
"v11", "v12", "v13", "v14", "v15");
}
#endif
#ifdef HAS_AR64TOARGBROW_RVV
void AR64ToARGBRow_RVV(const uint16_t* src_ar64, uint8_t* dst_argb, int width) {
int vl;
asm volatile(
"slli %[w], %[w], 2 \n"
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vle16.v v8, (%[src_ar64]) \n"
"vnsrl.wi v16, v8, 8 \n"
"vse8.v v16, (%[dst_argb]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[dst_argb], %[dst_argb], %[vl]\n"
"slli %[vl], %[vl], 1 \n"
"add %[src_ar64], %[src_ar64], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_ar64] "+r"(src_ar64), // %[src_ar64]
[dst_argb] "+r"(dst_argb), // %[dst_argb]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v16", "v17");
}
#endif
#ifdef HAS_AR64TOAB64ROW_RVV
void AR64ToAB64Row_RVV(const uint16_t* src_ar64,
uint16_t* dst_ab64,
int width) {
size_t vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e16, m2, ta, ma \n"
"vlseg4e16.v v8, (%[src_ar64]) \n"
"vmv2r.v v16, v12 \n"
"vmv2r.v v18, v10 \n"
"vmv2r.v v20, v8 \n"
"vmv2r.v v22, v14 \n"
"vsseg4e16.v v16, (%[dst_ab64]) \n"
"sub %[w], %[w], %[vl] \n"
"slli %[vl], %[vl], 3 \n"
"add %[src_ar64], %[src_ar64], %[vl]\n"
"add %[dst_ab64], %[dst_ab64], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_ar64] "+r"(src_ar64), // %[src_ar64]
[dst_ab64] "+r"(dst_ab64), // %[dst_ab64]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15", "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23");
}
#endif
#ifdef HAS_AB64TOARGBROW_RVV
void AB64ToARGBRow_RVV(const uint16_t* src_ab64, uint8_t* dst_argb, int width) {
size_t vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, m1, ta, ma \n"
"vlseg4e16.v v8, (%[src_ab64]) \n"
"vnsrl.wi v4, v12, 8 \n"
"vnsrl.wi v5, v10, 8 \n"
"vnsrl.wi v6, v8, 8 \n"
"vnsrl.wi v7, v14, 8 \n"
"vsseg4e8.v v4, (%[dst_argb]) \n"
"sub %[w], %[w], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[dst_argb], %[dst_argb], %[vl]\n"
"slli %[vl], %[vl], 1 \n"
"add %[src_ab64], %[src_ab64], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_ab64] "+r"(src_ab64), // %[src_ab64]
[dst_argb] "+r"(dst_argb), // %[dst_argb]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v4", "v5", "v6", "v7", "v8", "v9", "v10",
"v11", "v12", "v13", "v14", "v15");
}
#endif
#ifdef HAS_RAWTOARGBROW_RVV
void RAWToARGBRow_RVV(const uint8_t* src_raw, uint8_t* dst_argb, int width) {
size_t vl, tmp;
asm volatile(
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vmv.v.i v14, -1 \n"
"1: \n"
"vlseg3e8.v v16, (%[src_raw]) \n"
"vmv2r.v v8, v20 \n"
"vmv2r.v v10, v18 \n"
"vmv2r.v v12, v16 \n"
"vsseg4e8.v v8, (%[dst_argb]) \n"
"sub %[w], %[w], %[vl] \n"
"slli %[tmp], %[vl], 1 \n"
"add %[src_raw], %[src_raw], %[vl] \n"
"add %[src_raw], %[src_raw], %[tmp]\n"
"slli %[vl], %[vl], 2 \n"
"add %[dst_argb], %[dst_argb], %[vl]\n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"bgtz %[w], 1b \n"
: [src_raw] "+r"(src_raw), // %[src_raw]
[dst_argb] "+r"(dst_argb), // %[dst_argb]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[tmp] "=&r"(tmp) // %[tmp]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15", "v16", "v17", "v18", "v19", "v20", "v21");
}
#endif
#ifdef HAS_RAWTORGBAROW_RVV
void RAWToRGBARow_RVV(const uint8_t* src_raw, uint8_t* dst_rgba, int width) {
size_t vl, tmp;
asm volatile(
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vmv.v.i v8, -1 \n"
"1: \n"
"vlseg3e8.v v16, (%[src_raw]) \n"
"vmv2r.v v10, v20 \n"
"vmv2r.v v12, v18 \n"
"vmv2r.v v14, v16 \n"
"vsseg4e8.v v8, (%[dst_rgba]) \n"
"sub %[w], %[w], %[vl] \n"
"slli %[tmp], %[vl], 1 \n"
"add %[src_raw], %[src_raw], %[vl] \n"
"add %[src_raw], %[src_raw], %[tmp]\n"
"slli %[vl], %[vl], 2 \n"
"add %[dst_rgba], %[dst_rgba], %[vl]\n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"bgtz %[w], 1b \n"
: [src_raw] "+r"(src_raw), // %[src_raw]
[dst_rgba] "+r"(dst_rgba), // %[dst_rgba]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[tmp] "=&r"(tmp) // %[tmp]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15", "v16", "v17", "v18", "v19", "v20", "v21");
}
#endif
#ifdef HAS_RAWTORGB24ROW_RVV
void RAWToRGB24Row_RVV(const uint8_t* src_raw, uint8_t* dst_rgb24, int width) {
size_t vl, tmp;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vlseg3e8.v v16, (%[src_raw]) \n"
"vmv2r.v v8, v20 \n"
"vmv2r.v v10, v18 \n"
"vmv2r.v v12, v16 \n"
"vsseg3e8.v v8, (%[dst_rgb24]) \n"
"sub %[w], %[w], %[vl] \n"
"slli %[tmp], %[vl], 1 \n"
"add %[tmp], %[tmp], %[vl] \n"
"add %[src_raw], %[src_raw], %[tmp]\n"
"add %[dst_rgb24], %[dst_rgb24], %[tmp]\n"
"bgtz %[w], 1b \n"
: [src_raw] "+r"(src_raw), // %[src_raw]
[dst_rgb24] "+r"(dst_rgb24), // %[dst_rgb24]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[tmp] "=&r"(tmp) // %[tmp]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v16",
"v17", "v18", "v19", "v20", "v21");
}
#endif
#ifdef HAS_ARGBTORAWROW_RVV
void ARGBToRAWRow_RVV(const uint8_t* src_argb, uint8_t* dst_raw, int width) {
size_t vl, tmp;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vlseg4e8.v v8, (%[src_argb]) \n"
"vmv2r.v v16, v12 \n"
"vmv2r.v v18, v10 \n"
"vmv2r.v v20, v8 \n"
"vsseg3e8.v v16, (%[dst_raw]) \n"
"sub %[w], %[w], %[vl] \n"
"slli %[tmp], %[vl], 2 \n"
"add %[src_argb], %[src_argb], %[tmp]\n"
"slli %[tmp], %[vl], 1 \n"
"add %[dst_raw], %[dst_raw], %[vl] \n"
"add %[dst_raw], %[dst_raw], %[tmp]\n"
"bgtz %[w], 1b \n"
: [src_argb] "+r"(src_argb), // %[src_argb]
[dst_raw] "+r"(dst_raw), // %[dst_raw]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[tmp] "=&r"(tmp) // %[tmp]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15", "v16", "v17", "v18", "v19", "v20", "v21");
}
#endif
#ifdef HAS_ARGBTORGB24ROW_RVV
void ARGBToRGB24Row_RVV(const uint8_t* src_argb,
uint8_t* dst_rgb24,
int width) {
size_t vl, tmp;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vlseg4e8.v v8, (%[src_argb]) \n"
"vsseg3e8.v v8, (%[dst_rgb24]) \n"
"sub %[w], %[w], %[vl] \n"
"slli %[tmp], %[vl], 2 \n"
"add %[src_argb], %[src_argb], %[tmp]\n"
"slli %[tmp], %[vl], 1 \n"
"add %[dst_rgb24], %[dst_rgb24], %[vl]\n"
"add %[dst_rgb24], %[dst_rgb24], %[tmp]\n"
"bgtz %[w], 1b \n"
: [src_argb] "+r"(src_argb), // %[src_argb]
[dst_rgb24] "+r"(dst_rgb24), // %[dst_rgb24]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[tmp] "=&r"(tmp) // %[tmp]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15");
}
#endif
#ifdef HAS_ARGBTOABGRROW_RVV
void ARGBToABGRRow_RVV(const uint8_t* src_argb, uint8_t* dst_abgr, int width) {
size_t vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vlseg4e8.v v8, (%[src_argb]) \n"
"vmv2r.v v16, v12 \n"
"vmv2r.v v18, v10 \n"
"vmv2r.v v20, v8 \n"
"vmv2r.v v22, v14 \n"
"vsseg4e8.v v16, (%[dst_abgr]) \n"
"sub %[w], %[w], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[src_argb], %[src_argb], %[vl]\n"
"add %[dst_abgr], %[dst_abgr], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_argb] "+r"(src_argb), // %[src_argb]
[dst_abgr] "+r"(dst_abgr), // %[dst_abgr]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15", "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23");
}
#endif
#ifdef HAS_ARGBTOBGRAROW_RVV
void ARGBToBGRARow_RVV(const uint8_t* src_argb, uint8_t* dst_bgra, int width) {
size_t vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e32, m4, ta, ma \n"
"vle32.v v8, (%[src_argb]) \n"
"sub %[w], %[w], %[vl] \n"
"vsrl.vi v12, v8, 16 \n"
"vsll.vi v8, v8, 16 \n"
"vor.vv v8, v8, v12 \n"
"slli %[vl], %[vl], 1 \n"
"vsetvli zero, %[vl], e16, m4, ta, ma \n"
"vsrl.vi v12, v8, 8 \n"
"vsll.vi v8, v8, 8 \n"
"vor.vv v8, v8, v12 \n"
"vse16.v v8, (%[dst_bgra]) \n"
"slli %[vl], %[vl], 1 \n"
"add %[src_argb], %[src_argb], %[vl]\n"
"add %[dst_bgra], %[dst_bgra], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_argb] "+r"(src_argb), // %[src_argb]
[dst_bgra] "+r"(dst_bgra), // %[dst_bgra]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15");
}
#endif
#ifdef HAS_ARGBTORGBAROW_RVV
void ARGBToRGBARow_RVV(const uint8_t* src_argb, uint8_t* dst_rgba, int width) {
size_t vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e32, m4, ta, ma \n"
"vle32.v v8, (%[src_argb]) \n"
"vsrl.vi v12, v8, 24 \n"
"vsll.vi v8, v8, 8 \n"
"vor.vv v8, v8, v12 \n"
"vse32.v v8, (%[dst_rgba]) \n"
"sub %[w], %[w], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[src_argb], %[src_argb], %[vl]\n"
"add %[dst_rgba], %[dst_rgba], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_argb] "+r"(src_argb), // %[src_argb]
[dst_rgba] "+r"(dst_rgba), // %[dst_rgba]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15");
}
#endif
#ifdef HAS_RGBATOARGBROW_RVV
void RGBAToARGBRow_RVV(const uint8_t* src_rgba, uint8_t* dst_argb, int width) {
size_t vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e32, m4, ta, ma \n"
"vle32.v v8, (%[src_rgba]) \n"
"vsrl.vi v12, v8, 8 \n"
"vsll.vi v8, v8, 24 \n"
"vor.vv v8, v8, v12 \n"
"vse32.v v8, (%[dst_argb]) \n"
"sub %[w], %[w], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[src_rgba], %[src_rgba], %[vl]\n"
"add %[dst_argb], %[dst_argb], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_rgba] "+r"(src_rgba), // %[src_rgba]
[dst_argb] "+r"(dst_argb), // %[dst_argb]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15");
}
#endif
#ifdef HAS_RGB24TOARGBROW_RVV
void RGB24ToARGBRow_RVV(const uint8_t* src_rgb24,
uint8_t* dst_argb,
int width) {
size_t vl, tmp;
asm volatile(
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vmv.v.i v14, -1 \n"
"1: \n"
"vlseg3e8.v v8, (%[src_rgb24]) \n"
"vsseg4e8.v v8, (%[dst_argb]) \n"
"sub %[w], %[w], %[vl] \n"
"slli %[tmp], %[vl], 1 \n"
"add %[src_rgb24], %[src_rgb24], %[vl]\n"
"add %[src_rgb24], %[src_rgb24], %[tmp]\n"
"slli %[vl], %[vl], 2 \n"
"add %[dst_argb], %[dst_argb], %[vl]\n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"bgtz %[w], 1b \n"
: [src_rgb24] "+r"(src_rgb24), // %[src_rgb24]
[dst_argb] "+r"(dst_argb), // %[dst_argb]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[tmp] "=&r"(tmp) // %[tmp]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15");
}
#endif
#ifdef HAS_I444TOARGBROW_RVV
void I444ToARGBRow_RVV(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) {
size_t vl;
size_t ub, vr, ug, vg;
size_t yg, bb, bg, br;
size_t k0101;
asm volatile( //
YUVTORGB_SETUP //
"vsetvli zero, %[w], e8, m2, ta, ma \n"
"vmv.v.i v30, -1 \n"
"1: \n" //
READYUV444 //
"sub %[w], %[w], %[vl] \n" //
YUVTORGB //
RGBTORGB8 //
"vsseg4e8.v v24, (%[dst_argb]) \n"
"add %[src_y], %[src_y], %[vl] \n"
"add %[src_u], %[src_u], %[vl] \n"
"add %[src_v], %[src_v], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[dst_argb], %[dst_argb], %[vl]\n"
"bgtz %[w], 1b \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]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[ub] "=&r"(ub), // %[ub]
[vr] "=&r"(vr), // %[vr]
[ug] "=&r"(ug), // %[ug]
[vg] "=&r"(vg), // %[vg]
[yg] "=&r"(yg), // %[yg]
[bb] "=&r"(bb), // %[bb]
[bg] "=&r"(bg), // %[bg]
[br] "=&r"(br), // %[br]
[k0101] "=&r"(k0101) // %[k0101]
: [yuvconst] "r"(yuvconstants) // %[yuvconst]
: RVV_VL_CLOBBER "memory", YUVTORGB_REGS, "v30", "v31");
}
#endif
#ifdef HAS_I444ALPHATOARGBROW_RVV
void I444AlphaToARGBRow_RVV(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) {
size_t vl;
size_t ub, vr, ug, vg;
size_t yg, bb, bg, br;
size_t k0101;
asm volatile( //
YUVTORGB_SETUP //
"1: \n" //
READYUV444 //
"vle8.v v30, (%[src_a]) \n" //
YUVTORGB //
RGBTORGB8 //
"vsseg4e8.v v24, (%[dst_argb]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[src_y], %[src_y], %[vl] \n"
"add %[src_u], %[src_u], %[vl] \n"
"add %[src_v], %[src_v], %[vl] \n"
"add %[src_a], %[src_a], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[dst_argb], %[dst_argb], %[vl]\n"
"bgtz %[w], 1b \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]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[ub] "=&r"(ub), // %[ub]
[vr] "=&r"(vr), // %[vr]
[ug] "=&r"(ug), // %[ug]
[vg] "=&r"(vg), // %[vg]
[yg] "=&r"(yg), // %[yg]
[bb] "=&r"(bb), // %[bb]
[bg] "=&r"(bg), // %[bg]
[br] "=&r"(br), // %[br]
[k0101] "=&r"(k0101) // %[k0101]
: [yuvconst] "r"(yuvconstants) // %[yuvconst]
: RVV_VL_CLOBBER "memory", YUVTORGB_REGS, "v30", "v31");
}
#endif
#ifdef HAS_I444TORGB24ROW_RVV
void I444ToRGB24Row_RVV(const uint8_t* src_y,
const uint8_t* src_u,
const uint8_t* src_v,
uint8_t* dst_rgb24,
const struct YuvConstants* yuvconstants,
int width) {
size_t vl;
size_t ub, vr, ug, vg;
size_t yg, bb, bg, br;
size_t k0101;
asm volatile( //
YUVTORGB_SETUP //
"1: \n" //
READYUV444 //
"sub %[w], %[w], %[vl] \n" //
YUVTORGB //
RGBTORGB8 //
"vsseg3e8.v v24, (%[dst_rgb24]) \n"
"add %[src_y], %[src_y], %[vl] \n"
"add %[src_u], %[src_u], %[vl] \n"
"add %[src_v], %[src_v], %[vl] \n"
"add %[dst_rgb24], %[dst_rgb24], %[vl]\n"
"slli %[vl], %[vl], 1 \n"
"add %[dst_rgb24], %[dst_rgb24], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_y] "+r"(src_y), // %[src_y]
[src_u] "+r"(src_u), // %[src_u]
[src_v] "+r"(src_v), // %[src_v]
[dst_rgb24] "+r"(dst_rgb24), // %[dst_rgb24]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[ub] "=&r"(ub), // %[ub]
[vr] "=&r"(vr), // %[vr]
[ug] "=&r"(ug), // %[ug]
[vg] "=&r"(vg), // %[vg]
[yg] "=&r"(yg), // %[yg]
[bb] "=&r"(bb), // %[bb]
[bg] "=&r"(bg), // %[bg]
[br] "=&r"(br), // %[br]
[k0101] "=&r"(k0101) // %[k0101]
: [yuvconst] "r"(yuvconstants) // %[yuvconst]
: RVV_VL_CLOBBER "memory", YUVTORGB_REGS);
}
#endif
#ifdef HAS_I422TOARGBROW_RVV
void I422ToARGBRow_RVV(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) {
size_t vl;
size_t ub, vr, ug, vg;
size_t yg, bb, bg, br;
size_t k0101;
asm volatile( //
YUVTORGB_SETUP //
"vsetvli zero, %[w], e8, m2, ta, ma \n"
"vmv.v.i v30, -1 \n"
"1: \n" //
READYUV422 //
"sub %[w], %[w], %[vl] \n" //
YUVTORGB //
RGBTORGB8 //
"vsseg4e8.v v24, (%[dst_argb]) \n"
"add %[src_y], %[src_y], %[vl] \n"
"srli %[k0101], %[vl], 1 \n"
"add %[src_u], %[src_u], %[k0101] \n"
"add %[src_v], %[src_v], %[k0101] \n"
"slli %[vl], %[vl], 2 \n"
"add %[dst_argb], %[dst_argb], %[vl]\n"
"li %[k0101], 0x0101 \n"
"bgtz %[w], 1b \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]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[ub] "=&r"(ub), // %[ub]
[vr] "=&r"(vr), // %[vr]
[ug] "=&r"(ug), // %[ug]
[vg] "=&r"(vg), // %[vg]
[yg] "=&r"(yg), // %[yg]
[bb] "=&r"(bb), // %[bb]
[bg] "=&r"(bg), // %[bg]
[br] "=&r"(br), // %[br]
[k0101] "=&r"(k0101) // %[k0101]
: [yuvconst] "r"(yuvconstants) // %[yuvconst]
: RVV_VL_CLOBBER "memory", YUVTORGB_REGS, "v30", "v31");
}
#endif
#ifdef HAS_I422ALPHATOARGBROW_RVV
void I422AlphaToARGBRow_RVV(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) {
size_t vl;
size_t ub, vr, ug, vg;
size_t yg, bb, bg, br;
size_t k0101;
asm volatile( //
YUVTORGB_SETUP //
"1: \n" //
READYUV422 //
"vle8.v v30, (%[src_a]) \n" //
YUVTORGB //
RGBTORGB8 //
"vsseg4e8.v v24, (%[dst_argb]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[src_y], %[src_y], %[vl] \n"
"add %[src_a], %[src_a], %[vl] \n"
"srli %[k0101], %[vl], 1 \n"
"add %[src_u], %[src_u], %[k0101] \n"
"add %[src_v], %[src_v], %[k0101] \n"
"slli %[vl], %[vl], 2 \n"
"add %[dst_argb], %[dst_argb], %[vl]\n"
"li %[k0101], 0x0101 \n"
"bgtz %[w], 1b \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]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[ub] "=&r"(ub), // %[ub]
[vr] "=&r"(vr), // %[vr]
[ug] "=&r"(ug), // %[ug]
[vg] "=&r"(vg), // %[vg]
[yg] "=&r"(yg), // %[yg]
[bb] "=&r"(bb), // %[bb]
[bg] "=&r"(bg), // %[bg]
[br] "=&r"(br), // %[br]
[k0101] "=&r"(k0101) // %[k0101]
: [yuvconst] "r"(yuvconstants) // %[yuvconst]
: RVV_VL_CLOBBER "memory", YUVTORGB_REGS, "v30", "v31");
}
#endif
#ifdef HAS_I422TORGBAROW_RVV
void I422ToRGBARow_RVV(const uint8_t* src_y,
const uint8_t* src_u,
const uint8_t* src_v,
uint8_t* dst_rgba,
const struct YuvConstants* yuvconstants,
int width) {
size_t vl;
size_t ub, vr, ug, vg;
size_t yg, bb, bg, br;
size_t k0101;
asm volatile( //
YUVTORGB_SETUP //
"1: \n" //
READYUV422 //
"sub %[w], %[w], %[vl] \n" //
YUVTORGB //
RGBTORGB8 //
"vmv.v.i v22, -1 \n"
"vsseg4e8.v v22, (%[dst_rgba]) \n"
"add %[src_y], %[src_y], %[vl] \n"
"srli %[k0101], %[vl], 1 \n"
"add %[src_u], %[src_u], %[k0101] \n"
"add %[src_v], %[src_v], %[k0101] \n"
"slli %[vl], %[vl], 2 \n"
"add %[dst_rgba], %[dst_rgba], %[vl]\n"
"li %[k0101], 0x0101 \n"
"bgtz %[w], 1b \n"
: [src_y] "+r"(src_y), // %[src_y]
[src_u] "+r"(src_u), // %[src_u]
[src_v] "+r"(src_v), // %[src_v]
[dst_rgba] "+r"(dst_rgba), // %[dst_rgba]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[ub] "=&r"(ub), // %[ub]
[vr] "=&r"(vr), // %[vr]
[ug] "=&r"(ug), // %[ug]
[vg] "=&r"(vg), // %[vg]
[yg] "=&r"(yg), // %[yg]
[bb] "=&r"(bb), // %[bb]
[bg] "=&r"(bg), // %[bg]
[br] "=&r"(br), // %[br]
[k0101] "=&r"(k0101) // %[k0101]
: [yuvconst] "r"(yuvconstants) // %[yuvconst]
: RVV_VL_CLOBBER "memory", YUVTORGB_REGS, "v22", "v23");
}
#endif
#ifdef HAS_I422TORGB24ROW_RVV
void I422ToRGB24Row_RVV(const uint8_t* src_y,
const uint8_t* src_u,
const uint8_t* src_v,
uint8_t* dst_rgb24,
const struct YuvConstants* yuvconstants,
int width) {
size_t vl;
size_t ub, vr, ug, vg;
size_t yg, bb, bg, br;
size_t k0101;
asm volatile( //
YUVTORGB_SETUP //
"1: \n" //
READYUV422 //
"sub %[w], %[w], %[vl] \n" //
YUVTORGB //
RGBTORGB8 //
"vsseg3e8.v v24, (%[dst_rgb24]) \n"
"add %[src_y], %[src_y], %[vl] \n"
"srli %[k0101], %[vl], 1 \n"
"add %[src_u], %[src_u], %[k0101] \n"
"add %[src_v], %[src_v], %[k0101] \n"
"add %[dst_rgb24], %[dst_rgb24], %[vl]\n"
"slli %[vl], %[vl], 1 \n"
"add %[dst_rgb24], %[dst_rgb24], %[vl]\n"
"li %[k0101], 0x0101 \n"
"bgtz %[w], 1b \n"
: [src_y] "+r"(src_y), // %[src_y]
[src_u] "+r"(src_u), // %[src_u]
[src_v] "+r"(src_v), // %[src_v]
[dst_rgb24] "+r"(dst_rgb24), // %[dst_rgb24]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[ub] "=&r"(ub), // %[ub]
[vr] "=&r"(vr), // %[vr]
[ug] "=&r"(ug), // %[ug]
[vg] "=&r"(vg), // %[vg]
[yg] "=&r"(yg), // %[yg]
[bb] "=&r"(bb), // %[bb]
[bg] "=&r"(bg), // %[bg]
[br] "=&r"(br), // %[br]
[k0101] "=&r"(k0101) // %[k0101]
: [yuvconst] "r"(yuvconstants) // %[yuvconst]
: RVV_VL_CLOBBER "memory", YUVTORGB_REGS);
}
#endif
#ifdef HAS_I422TOAR30ROW_RVV
void I422ToAR30Row_RVV(const uint8_t* src_y,
const uint8_t* src_u,
const uint8_t* src_v,
uint8_t* dst_ar30,
const struct YuvConstants* yuvconstants,
int width) {
size_t vl;
size_t ub, vr, ug, vg;
size_t yg, bb, bg, br;
size_t k0101;
asm volatile( //
YUVTORGB_SETUP_AR30 //
"1: \n"
"addi %[vl], %[w], 1 \n"
"srli %[vl], %[vl], 1 \n"
"vsetvli %[vl], %[vl], e8, mf2, ta, ma \n"
"vle8.v v0, (%[src_u]) \n"
"vle8.v v1, (%[src_v]) \n"
"vwcvtu.x.x.v v2, v0 \n"
"vwcvtu.x.x.v v4, v1 \n"
"vsetvli zero, zero, e16, m1, ta, ma \n"
"vmul.vx v2, v2, %[k0101] \n"
"vmul.vx v4, v4, %[k0101] \n"
"vsetvli %[vl], %[w], e8, m1, ta, ma \n"
"vle8.v v0, (%[src_y]) \n"
"vwcvtu.x.x.v v8, v0 \n"
"vwmulu.vx v12, v2, %[ug] \n"
"vwmaccu.vx v12, %[vg], v4 \n"
"vwmulu.vx v0, v2, %[ub] \n"
"vsetvli zero, zero, e16, m2, ta, ma \n"
"vmul.vx v8, v8, %[k0101] \n"
"vmulhu.vx v8, v8, %[yg] \n"
"vadd.vx v16, v8, %[bg] \n"
"vadd.vv v0, v8, v0 \n"
"vsetvli zero, zero, e8, m1, ta, ma \n"
"vwmaccu.vx v8, %[vr], v4 \n"
"vsetvli zero, zero, e16, m2, ta, ma \n"
"vssubu.vv v12, v16, v12 \n"
"vssubu.vx v0, v0, %[bb] \n"
"vssubu.vx v8, v8, %[br] \n"
"vsrl.vi v0, v0, 4 \n"
"vsrl.vi v12, v12, 4 \n"
"vsrl.vi v8, v8, 4 \n"
"li %[k0101], 1023 \n"
"vminu.vx v0, v0, %[k0101] \n"
"vminu.vx v12, v12, %[k0101] \n"
"vminu.vx v8, v8, %[k0101] \n"
"vwcvtu.x.x.v v16, v0 \n"
"li %[k0101], 1024 \n"
"vwmaccu.vx v16, %[k0101], v12 \n"
"li %[k0101], 0x0c00 \n"
"vor.vx v8, v8, %[k0101] \n"
"vwcvtu.x.x.v v20, v8 \n"
"vsetvli zero, zero, e32, m4, ta, ma \n"
"vsll.vi v20, v20, 20 \n"
"vor.vv v16, v16, v20 \n"
"vse32.v v16, (%[dst_ar30]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[src_y], %[src_y], %[vl] \n"
"srli %[k0101], %[vl], 1 \n"
"add %[src_u], %[src_u], %[k0101] \n"
"add %[src_v], %[src_v], %[k0101] \n"
"slli %[vl], %[vl], 2 \n"
"add %[dst_ar30], %[dst_ar30], %[vl]\n"
"li %[k0101], 0x0101 \n"
"bgtz %[w], 1b \n"
: [src_y] "+r"(src_y), // %[src_y]
[src_u] "+r"(src_u), // %[src_u]
[src_v] "+r"(src_v), // %[src_v]
[dst_ar30] "+r"(dst_ar30), // %[dst_ar30]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[ub] "=&r"(ub), // %[ub]
[vr] "=&r"(vr), // %[vr]
[ug] "=&r"(ug), // %[ug]
[vg] "=&r"(vg), // %[vg]
[yg] "=&r"(yg), // %[yg]
[bb] "=&r"(bb), // %[bb]
[bg] "=&r"(bg), // %[bg]
[br] "=&r"(br), // %[br]
[k0101] "=&r"(k0101) // %[k0101]
: [yuvconst] "r"(yuvconstants) // %[yuvconst]
: RVV_VL_CLOBBER "memory", "v0", "v1", "v2", "v4", "v8", "v9", "v12",
"v13", "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23");
}
#endif
#ifdef HAS_I400TOARGBROW_RVV
void I400ToARGBRow_RVV(const uint8_t* src_y,
uint8_t* dst_argb,
const struct YuvConstants* yuvconstants,
int width) {
size_t vl;
const bool is_yb_positive = (yuvconstants->kRGBCoeffBias[4] >= 0);
uint16_t yg = yuvconstants->kRGBCoeffBias[0];
uint16_t yb = is_yb_positive
? (uint16_t)(yuvconstants->kRGBCoeffBias[4] - 32)
: (uint16_t)(-yuvconstants->kRGBCoeffBias[4] + 32);
size_t k0101;
if (is_yb_positive) {
asm volatile(
"csrwi vxrm, 0 \n"
"li %[k0101], 0x0101 \n"
"vsetvli zero, %[w], e16, m4, ta, ma \n"
"vmv.v.x v20, %[yg] \n"
"vmv.v.x v24, %[yb] \n"
"vsetvli zero, %[w], e8, m2, ta, ma \n"
"vmv.v.i v14, -1 \n"
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vle8.v v0, (%[src_y]) \n"
"vwcvtu.x.x.v v16, v0 \n"
"vsetvli zero, zero, e16, m4, ta, ma \n"
"vmul.vx v16, v16, %[k0101] \n"
"vmulhu.vv v16, v16, v20 \n"
"vsaddu.vv v16, v16, v24 \n"
"vsetvli zero, zero, e8, m2, ta, ma \n"
"vnclipu.wi v8, v16, 6 \n"
"vmv2r.v v10, v8 \n"
"vmv2r.v v12, v8 \n"
"vsseg4e8.v v8, (%[dst_argb]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[src_y], %[src_y], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[dst_argb], %[dst_argb], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_y] "+r"(src_y), // %[src_y]
[dst_argb] "+r"(dst_argb), // %[dst_argb]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[k0101] "=&r"(k0101) // %[k0101]
: [yg] "r"(yg), // %[yg]
[yb] "r"(yb) // %[yb]
: RVV_VL_CLOBBER "memory", "v0", "v1", "v8", "v9", "v10", "v11", "v12",
"v13", "v14", "v15", "v16", "v17", "v18", "v19", "v20", "v21", "v22",
"v23", "v24", "v25", "v26", "v27");
} else {
asm volatile(
"csrwi vxrm, 0 \n"
"li %[k0101], 0x0101 \n"
"vsetvli zero, %[w], e16, m4, ta, ma \n"
"vmv.v.x v20, %[yg] \n"
"vmv.v.x v24, %[yb] \n"
"vsetvli zero, %[w], e8, m2, ta, ma \n"
"vmv.v.i v14, -1 \n"
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vle8.v v0, (%[src_y]) \n"
"vwcvtu.x.x.v v16, v0 \n"
"vsetvli zero, zero, e16, m4, ta, ma \n"
"vmul.vx v16, v16, %[k0101] \n"
"vmulhu.vv v16, v16, v20 \n"
"vssubu.vv v16, v16, v24 \n"
"vsetvli zero, zero, e8, m2, ta, ma \n"
"vnclipu.wi v8, v16, 6 \n"
"vmv2r.v v10, v8 \n"
"vmv2r.v v12, v8 \n"
"vsseg4e8.v v8, (%[dst_argb]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[src_y], %[src_y], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[dst_argb], %[dst_argb], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_y] "+r"(src_y), // %[src_y]
[dst_argb] "+r"(dst_argb), // %[dst_argb]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[k0101] "=&r"(k0101) // %[k0101]
: [yg] "r"(yg), // %[yg]
[yb] "r"(yb) // %[yb]
: RVV_VL_CLOBBER "memory", "v0", "v1", "v8", "v9", "v10", "v11", "v12",
"v13", "v14", "v15", "v16", "v17", "v18", "v19", "v20", "v21", "v22",
"v23", "v24", "v25", "v26", "v27");
}
}
#endif
#ifdef HAS_J400TOARGBROW_RVV
void J400ToARGBRow_RVV(const uint8_t* src_y, uint8_t* dst_argb, int width) {
size_t vl;
asm volatile(
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vmv.v.i v14, -1 \n"
"1: \n"
"vle8.v v8, (%[src_y]) \n"
"vmv2r.v v10, v8 \n"
"vmv2r.v v12, v8 \n"
"vsseg4e8.v v8, (%[dst_argb]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[src_y], %[src_y], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[dst_argb], %[dst_argb], %[vl]\n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"bgtz %[w], 1b \n"
: [src_y] "+r"(src_y), // %[src_y]
[dst_argb] "+r"(dst_argb), // %[dst_argb]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15");
}
#endif
#ifdef HAS_COPYROW_RVV
void CopyRow_RVV(const uint8_t* src, uint8_t* dst, int width) {
size_t vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, m4, ta, ma \n"
"vle8.v v8, (%[src]) \n"
"vse8.v v8, (%[dst]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[src], %[src], %[vl] \n"
"add %[dst], %[dst], %[vl] \n"
"bgtz %[w], 1b \n"
: [src] "+r"(src), // %[src]
[dst] "+r"(dst), // %[dst]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11");
}
#endif
#ifdef HAS_NV12TOARGBROW_RVV
void NV12ToARGBRow_RVV(const uint8_t* src_y,
const uint8_t* src_uv,
uint8_t* dst_argb,
const struct YuvConstants* yuvconstants,
int width) {
size_t vl;
size_t ub, vr, ug, vg;
size_t yg, bb, bg, br;
size_t k0101;
asm volatile( //
YUVTORGB_SETUP //
"vsetvli zero, %[w], e8, m2, ta, ma \n"
"vmv.v.i v30, -1 \n"
"1: \n" //
READNV12 //
"sub %[w], %[w], %[vl] \n" //
YUVTORGB //
RGBTORGB8 //
"vsseg4e8.v v24, (%[dst_argb]) \n"
"add %[src_y], %[src_y], %[vl] \n"
"add %[src_uv], %[src_uv], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[dst_argb], %[dst_argb], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_y] "+r"(src_y), // %[src_y]
[src_uv] "+r"(src_uv), // %[src_uv]
[dst_argb] "+r"(dst_argb), // %[dst_argb]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[ub] "=&r"(ub), // %[ub]
[vr] "=&r"(vr), // %[vr]
[ug] "=&r"(ug), // %[ug]
[vg] "=&r"(vg), // %[vg]
[yg] "=&r"(yg), // %[yg]
[bb] "=&r"(bb), // %[bb]
[bg] "=&r"(bg), // %[bg]
[br] "=&r"(br), // %[br]
[k0101] "=&r"(k0101) // %[k0101]
: [yuvconst] "r"(yuvconstants) // %[yuvconst]
: RVV_VL_CLOBBER "memory", YUVTORGB_REGS, "v30", "v31");
}
#endif
#ifdef HAS_NV12TORGB24ROW_RVV
void NV12ToRGB24Row_RVV(const uint8_t* src_y,
const uint8_t* src_uv,
uint8_t* dst_rgb24,
const struct YuvConstants* yuvconstants,
int width) {
size_t vl;
size_t ub, vr, ug, vg;
size_t yg, bb, bg, br;
size_t k0101;
asm volatile( //
YUVTORGB_SETUP //
"1: \n" //
READNV12 //
"sub %[w], %[w], %[vl] \n" //
YUVTORGB //
RGBTORGB8 //
"vsseg3e8.v v24, (%[dst_rgb24]) \n"
"add %[src_y], %[src_y], %[vl] \n"
"add %[src_uv], %[src_uv], %[vl] \n"
"add %[dst_rgb24], %[dst_rgb24], %[vl]\n"
"slli %[vl], %[vl], 1 \n"
"add %[dst_rgb24], %[dst_rgb24], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_y] "+r"(src_y), // %[src_y]
[src_uv] "+r"(src_uv), // %[src_uv]
[dst_rgb24] "+r"(dst_rgb24), // %[dst_rgb24]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[ub] "=&r"(ub), // %[ub]
[vr] "=&r"(vr), // %[vr]
[ug] "=&r"(ug), // %[ug]
[vg] "=&r"(vg), // %[vg]
[yg] "=&r"(yg), // %[yg]
[bb] "=&r"(bb), // %[bb]
[bg] "=&r"(bg), // %[bg]
[br] "=&r"(br), // %[br]
[k0101] "=&r"(k0101) // %[k0101]
: [yuvconst] "r"(yuvconstants) // %[yuvconst]
: RVV_VL_CLOBBER "memory", YUVTORGB_REGS);
}
#endif
#ifdef HAS_NV21TOARGBROW_RVV
void NV21ToARGBRow_RVV(const uint8_t* src_y,
const uint8_t* src_vu,
uint8_t* dst_argb,
const struct YuvConstants* yuvconstants,
int width) {
size_t vl;
size_t ub, vr, ug, vg;
size_t yg, bb, bg, br;
size_t k0101;
asm volatile( //
YUVTORGB_SETUP //
"vsetvli zero, %[w], e8, m2, ta, ma \n"
"vmv.v.i v30, -1 \n"
"1: \n" //
READNV21 //
"sub %[w], %[w], %[vl] \n" //
YUVTORGB //
RGBTORGB8 //
"vsseg4e8.v v24, (%[dst_argb]) \n"
"add %[src_y], %[src_y], %[vl] \n"
"add %[src_vu], %[src_vu], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[dst_argb], %[dst_argb], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_y] "+r"(src_y), // %[src_y]
[src_vu] "+r"(src_vu), // %[src_vu]
[dst_argb] "+r"(dst_argb), // %[dst_argb]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[ub] "=&r"(ub), // %[ub]
[vr] "=&r"(vr), // %[vr]
[ug] "=&r"(ug), // %[ug]
[vg] "=&r"(vg), // %[vg]
[yg] "=&r"(yg), // %[yg]
[bb] "=&r"(bb), // %[bb]
[bg] "=&r"(bg), // %[bg]
[br] "=&r"(br), // %[br]
[k0101] "=&r"(k0101) // %[k0101]
: [yuvconst] "r"(yuvconstants) // %[yuvconst]
: RVV_VL_CLOBBER "memory", YUVTORGB_REGS, "v30", "v31");
}
#endif
#ifdef HAS_NV21TORGB24ROW_RVV
void NV21ToRGB24Row_RVV(const uint8_t* src_y,
const uint8_t* src_vu,
uint8_t* dst_rgb24,
const struct YuvConstants* yuvconstants,
int width) {
size_t vl;
size_t ub, vr, ug, vg;
size_t yg, bb, bg, br;
size_t k0101;
asm volatile( //
YUVTORGB_SETUP //
"1: \n" //
READNV21 //
"sub %[w], %[w], %[vl] \n" //
YUVTORGB //
RGBTORGB8 //
"vsseg3e8.v v24, (%[dst_rgb24]) \n"
"add %[src_y], %[src_y], %[vl] \n"
"add %[src_vu], %[src_vu], %[vl] \n"
"add %[dst_rgb24], %[dst_rgb24], %[vl]\n"
"slli %[vl], %[vl], 1 \n"
"add %[dst_rgb24], %[dst_rgb24], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_y] "+r"(src_y), // %[src_y]
[src_vu] "+r"(src_vu), // %[src_vu]
[dst_rgb24] "+r"(dst_rgb24), // %[dst_rgb24]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[ub] "=&r"(ub), // %[ub]
[vr] "=&r"(vr), // %[vr]
[ug] "=&r"(ug), // %[ug]
[vg] "=&r"(vg), // %[vg]
[yg] "=&r"(yg), // %[yg]
[bb] "=&r"(bb), // %[bb]
[bg] "=&r"(bg), // %[bg]
[br] "=&r"(br), // %[br]
[k0101] "=&r"(k0101) // %[k0101]
: [yuvconst] "r"(yuvconstants) // %[yuvconst]
: RVV_VL_CLOBBER "memory", YUVTORGB_REGS);
}
#endif
// Bilinear filter [VLEN/8]x2 -> [VLEN/8]x1
#ifdef HAS_INTERPOLATEROW_RVV
void InterpolateRow_RVV(uint8_t* dst_ptr,
const uint8_t* 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_t* src_ptr1 = src_ptr + src_stride;
size_t dst_w = (size_t)dst_width;
size_t vl;
assert(source_y_fraction >= 0);
assert(source_y_fraction < 256);
// Blend 100 / 0 - Copy row unchanged.
if (y1_fraction == 0) {
asm volatile(
"1: \n"
"vsetvli %[vl], %[dst_w], e8, m4, ta, ma\n"
"vle8.v v8, (%[src_ptr]) \n"
"vse8.v v8, (%[dst_ptr]) \n"
"sub %[dst_w], %[dst_w], %[vl] \n"
"add %[src_ptr], %[src_ptr], %[vl] \n"
"add %[dst_ptr], %[dst_ptr], %[vl] \n"
"bgtz %[dst_w], 1b \n"
: [dst_ptr] "+r"(dst_ptr), // %[dst_ptr]
[src_ptr] "+r"(src_ptr), // %[src_ptr]
[dst_w] "+r"(dst_w), // %[dst_w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11");
return;
}
// Blend 50 / 50.
if (y1_fraction == 128) {
asm volatile(
"csrwi vxrm, 0 \n"
"1: \n"
"vsetvli %[vl], %[dst_w], e8, m4, ta, ma\n"
"vle8.v v8, (%[src_ptr]) \n"
"vle8.v v12, (%[src_ptr1]) \n"
"vaaddu.vv v8, v8, v12 \n"
"vse8.v v8, (%[dst_ptr]) \n"
"sub %[dst_w], %[dst_w], %[vl] \n"
"add %[src_ptr], %[src_ptr], %[vl] \n"
"add %[src_ptr1], %[src_ptr1], %[vl]\n"
"add %[dst_ptr], %[dst_ptr], %[vl] \n"
"bgtz %[dst_w], 1b \n"
: [dst_ptr] "+r"(dst_ptr), // %[dst_ptr]
[src_ptr] "+r"(src_ptr), // %[src_ptr]
[src_ptr1] "+r"(src_ptr1), // %[src_ptr1]
[dst_w] "+r"(dst_w), // %[dst_w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13",
"v14", "v15");
return;
}
// General purpose row blend.
asm volatile(
"vsetvli zero, %[dst_w], e16, m4, ta, ma\n"
"vmv.v.x v12, %[c128] \n"
"1: \n"
"vsetvli %[vl], %[dst_w], e8, m2, ta, ma\n"
"vle8.v v16, (%[src_ptr]) \n"
"vmv4r.v v8, v12 \n"
"vwmaccu.vx v8, %[y0_fraction], v16 \n"
"vle8.v v16, (%[src_ptr1]) \n"
"vwmaccu.vx v8, %[y1_fraction], v16 \n"
"vnsrl.wi v16, v8, 8 \n"
"vse8.v v16, (%[dst_ptr]) \n"
"sub %[dst_w], %[dst_w], %[vl] \n"
"add %[src_ptr], %[src_ptr], %[vl] \n"
"add %[src_ptr1], %[src_ptr1], %[vl]\n"
"add %[dst_ptr], %[dst_ptr], %[vl] \n"
"bgtz %[dst_w], 1b \n"
: [dst_ptr] "+r"(dst_ptr), // %[dst_ptr]
[src_ptr] "+r"(src_ptr), // %[src_ptr]
[src_ptr1] "+r"(src_ptr1), // %[src_ptr1]
[dst_w] "+r"(dst_w), // %[dst_w]
[vl] "=&r"(vl) // %[vl]
: [y0_fraction] "r"(y0_fraction), // %[y0_fraction]
[y1_fraction] "r"(y1_fraction), // %[y1_fraction]
[c128] "r"(128) // %[c128]
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15", "v16", "v17");
}
#endif
#ifdef HAS_SPLITRGBROW_RVV
void SplitRGBRow_RVV(const uint8_t* src_rgb,
uint8_t* dst_r,
uint8_t* dst_g,
uint8_t* dst_b,
int width) {
size_t vl, tmp;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vlseg3e8.v v8, (%[src_rgb]) \n"
"vse8.v v8, (%[dst_r]) \n"
"vse8.v v10, (%[dst_g]) \n"
"vse8.v v12, (%[dst_b]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[dst_r], %[dst_r], %[vl] \n"
"add %[dst_g], %[dst_g], %[vl] \n"
"add %[dst_b], %[dst_b], %[vl] \n"
"slli %[tmp], %[vl], 1 \n"
"add %[src_rgb], %[src_rgb], %[vl] \n"
"add %[src_rgb], %[src_rgb], %[tmp]\n"
"bgtz %[w], 1b \n"
: [src_rgb] "+r"(src_rgb), // %[src_rgb]
[dst_r] "+r"(dst_r), // %[dst_r]
[dst_g] "+r"(dst_g), // %[dst_g]
[dst_b] "+r"(dst_b), // %[dst_b]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[tmp] "=&r"(tmp) // %[tmp]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13");
}
#endif
#ifdef HAS_MERGERGBROW_RVV
void MergeRGBRow_RVV(const uint8_t* src_r,
const uint8_t* src_g,
const uint8_t* src_b,
uint8_t* dst_rgb,
int width) {
size_t vl, tmp;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vle8.v v8, (%[src_r]) \n"
"vle8.v v10, (%[src_g]) \n"
"vle8.v v12, (%[src_b]) \n"
"vsseg3e8.v v8, (%[dst_rgb]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[src_r], %[src_r], %[vl] \n"
"add %[src_g], %[src_g], %[vl] \n"
"add %[src_b], %[src_b], %[vl] \n"
"slli %[tmp], %[vl], 1 \n"
"add %[dst_rgb], %[dst_rgb], %[vl] \n"
"add %[dst_rgb], %[dst_rgb], %[tmp]\n"
"bgtz %[w], 1b \n"
: [src_r] "+r"(src_r), // %[src_r]
[src_g] "+r"(src_g), // %[src_g]
[src_b] "+r"(src_b), // %[src_b]
[dst_rgb] "+r"(dst_rgb), // %[dst_rgb]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[tmp] "=&r"(tmp) // %[tmp]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13");
}
#endif
#ifdef HAS_SPLITARGBROW_RVV
void SplitARGBRow_RVV(const uint8_t* src_argb,
uint8_t* dst_r,
uint8_t* dst_g,
uint8_t* dst_b,
uint8_t* dst_a,
int width) {
size_t vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vlseg4e8.v v8, (%[src_argb]) \n"
"vse8.v v14, (%[dst_a]) \n"
"vse8.v v12, (%[dst_r]) \n"
"vse8.v v10, (%[dst_g]) \n"
"vse8.v v8, (%[dst_b]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[dst_a], %[dst_a], %[vl] \n"
"add %[dst_r], %[dst_r], %[vl] \n"
"add %[dst_g], %[dst_g], %[vl] \n"
"add %[dst_b], %[dst_b], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[src_argb], %[src_argb], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_argb] "+r"(src_argb), // %[src_argb]
[dst_r] "+r"(dst_r), // %[dst_r]
[dst_g] "+r"(dst_g), // %[dst_g]
[dst_b] "+r"(dst_b), // %[dst_b]
[dst_a] "+r"(dst_a), // %[dst_a]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15");
}
#endif
#ifdef HAS_MERGEARGBROW_RVV
void MergeARGBRow_RVV(const uint8_t* src_r,
const uint8_t* src_g,
const uint8_t* src_b,
const uint8_t* src_a,
uint8_t* dst_argb,
int width) {
size_t vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vle8.v v12, (%[src_r]) \n"
"vle8.v v10, (%[src_g]) \n"
"vle8.v v8, (%[src_b]) \n"
"vle8.v v14, (%[src_a]) \n"
"vsseg4e8.v v8, (%[dst_argb]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[src_r], %[src_r], %[vl] \n"
"add %[src_g], %[src_g], %[vl] \n"
"add %[src_b], %[src_b], %[vl] \n"
"add %[src_a], %[src_a], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[dst_argb], %[dst_argb], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_r] "+r"(src_r), // %[src_r]
[src_g] "+r"(src_g), // %[src_g]
[src_b] "+r"(src_b), // %[src_b]
[src_a] "+r"(src_a), // %[src_a]
[dst_argb] "+r"(dst_argb), // %[dst_argb]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15");
}
#endif
#ifdef HAS_SPLITXRGBROW_RVV
void SplitXRGBRow_RVV(const uint8_t* src_argb,
uint8_t* dst_r,
uint8_t* dst_g,
uint8_t* dst_b,
int width) {
size_t vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vlseg4e8.v v8, (%[src_argb]) \n"
"vse8.v v12, (%[dst_r]) \n"
"vse8.v v10, (%[dst_g]) \n"
"vse8.v v8, (%[dst_b]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[dst_r], %[dst_r], %[vl] \n"
"add %[dst_g], %[dst_g], %[vl] \n"
"add %[dst_b], %[dst_b], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[src_argb], %[src_argb], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_argb] "+r"(src_argb), // %[src_argb]
[dst_r] "+r"(dst_r), // %[dst_r]
[dst_g] "+r"(dst_g), // %[dst_g]
[dst_b] "+r"(dst_b), // %[dst_b]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15");
}
#endif
#ifdef HAS_MERGEXRGBROW_RVV
void MergeXRGBRow_RVV(const uint8_t* src_r,
const uint8_t* src_g,
const uint8_t* src_b,
uint8_t* dst_argb,
int width) {
size_t vl;
asm volatile(
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vmv.v.i v14, -1 \n"
"1: \n"
"vle8.v v12, (%[src_r]) \n"
"vle8.v v10, (%[src_g]) \n"
"vle8.v v8, (%[src_b]) \n"
"vsseg4e8.v v8, (%[dst_argb]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[src_r], %[src_r], %[vl] \n"
"add %[src_g], %[src_g], %[vl] \n"
"add %[src_b], %[src_b], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[dst_argb], %[dst_argb], %[vl]\n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"bgtz %[w], 1b \n"
: [src_r] "+r"(src_r), // %[src_r]
[src_g] "+r"(src_g), // %[src_g]
[src_b] "+r"(src_b), // %[src_b]
[dst_argb] "+r"(dst_argb), // %[dst_argb]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15");
}
#endif
#ifdef HAS_SPLITUVROW_RVV
void SplitUVRow_RVV(const uint8_t* src_uv,
uint8_t* dst_u,
uint8_t* dst_v,
int width) {
size_t vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, m4, ta, ma \n"
"vlseg2e8.v v8, (%[src_uv]) \n"
"vse8.v v8, (%[dst_u]) \n"
"vse8.v v12, (%[dst_v]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[dst_u], %[dst_u], %[vl] \n"
"add %[dst_v], %[dst_v], %[vl] \n"
"slli %[vl], %[vl], 1 \n"
"add %[src_uv], %[src_uv], %[vl] \n"
"bgtz %[w], 1b \n"
: [src_uv] "+r"(src_uv), // %[src_uv]
[dst_u] "+r"(dst_u), // %[dst_u]
[dst_v] "+r"(dst_v), // %[dst_v]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15");
}
#endif
#ifdef HAS_MERGEUVROW_RVV
void MergeUVRow_RVV(const uint8_t* src_u,
const uint8_t* src_v,
uint8_t* dst_uv,
int width) {
size_t vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, m4, ta, ma \n"
"vle8.v v8, (%[src_u]) \n"
"vle8.v v12, (%[src_v]) \n"
"vsseg2e8.v v8, (%[dst_uv]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[src_u], %[src_u], %[vl] \n"
"add %[src_v], %[src_v], %[vl] \n"
"slli %[vl], %[vl], 1 \n"
"add %[dst_uv], %[dst_uv], %[vl] \n"
"bgtz %[w], 1b \n"
: [src_u] "+r"(src_u), // %[src_u]
[src_v] "+r"(src_v), // %[src_v]
[dst_uv] "+r"(dst_uv), // %[dst_uv]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15");
}
#endif
#ifdef HAS_SWAPUVROW_RVV
void SwapUVRow_RVV(const uint8_t* src_uv, uint8_t* dst_vu, int width) {
assert(width != 0);
size_t vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e16, m4, ta, ma \n"
"vle16.v v8, (%[src_uv]) \n"
"vsrl.vi v12, v8, 8 \n"
"vsll.vi v8, v8, 8 \n"
"vor.vv v8, v8, v12 \n"
"vse16.v v8, (%[dst_vu]) \n"
"sub %[w], %[w], %[vl] \n"
"slli %[vl], %[vl], 1 \n"
"add %[src_uv], %[src_uv], %[vl] \n"
"add %[dst_vu], %[dst_vu], %[vl] \n"
"bgtz %[w], 1b \n"
: [src_uv] "+r"(src_uv), // %[src_uv]
[dst_vu] "+r"(dst_vu), // %[dst_vu]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15");
}
#endif
// ARGB expects first 3 values to contain RGB and 4th value is ignored
#ifdef HAS_ARGBTOYMATRIXROW_RVV
void ARGBToYMatrixRow_RVV(const uint8_t* src_argb,
uint8_t* dst_y,
int width,
const struct ArgbConstants* c) {
assert(width != 0);
size_t vl, tmp;
asm volatile(
"lhu %[tmp], 48(%[c]) \n"
"vsetvli zero, %[w], e16, m4, ta, ma \n"
"vmv.v.x v8, %[tmp] \n"
"lbu %[vl], 0(%[c]) \n"
"lbu %[tmp], 1(%[c]) \n"
"vsetvli zero, zero, e8, m2, ta, ma \n"
"vmv.v.x v12, %[vl] \n"
"vmv.v.x v14, %[tmp] \n"
"lbu %[vl], 2(%[c]) \n"
"lbu %[tmp], 3(%[c]) \n"
"vmv.v.x v16, %[vl] \n"
"vmv.v.x v18, %[tmp] \n"
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vlseg4e8.v v24, (%[src_argb]) \n"
"vwmulu.vv v20, v24, v12 \n"
"vwmaccu.vv v20, v14, v26 \n"
"vwmaccu.vv v20, v16, v28 \n"
"vwmaccu.vv v20, v18, v30 \n"
"vsetvli zero, zero, e16, m4, ta, ma \n"
"vadd.vv v20, v20, v8 \n"
"vsetvli zero, zero, e8, m2, ta, ma \n"
"vnsrl.wi v24, v20, 8 \n"
"vse8.v v24, (%[dst_y]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[dst_y], %[dst_y], %[vl] \n"
"slli %[tmp], %[vl], 2 \n"
"add %[src_argb], %[src_argb], %[tmp]\n"
"bgtz %[w], 1b \n"
: [src_argb] "+r"(src_argb), // %[src_argb]
[dst_y] "+r"(dst_y), // %[dst_y]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[tmp] "=&r"(tmp) // %[tmp]
: [c] "r"(c) // %[c]
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15", "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", "v24",
"v25", "v26", "v27", "v28", "v29", "v30", "v31");
}
#endif
#ifdef HAS_RGBTOYMATRIXROW_RVV
void RGBToYMatrixRow_RVV(const uint8_t* src_rgb,
uint8_t* dst_y,
int width,
const struct ArgbConstants* c) {
assert(width != 0);
size_t vl, tmp;
asm volatile(
"lhu %[tmp], 48(%[c]) \n"
"vsetvli zero, %[w], e16, m4, ta, ma \n"
"vmv.v.x v8, %[tmp] \n"
"lbu %[vl], 0(%[c]) \n"
"lbu %[tmp], 1(%[c]) \n"
"vsetvli zero, zero, e8, m2, ta, ma \n"
"vmv.v.x v12, %[vl] \n"
"vmv.v.x v14, %[tmp] \n"
"lbu %[vl], 2(%[c]) \n"
"vmv.v.x v16, %[vl] \n"
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vlseg3e8.v v24, (%[src_rgb]) \n"
"vwmulu.vv v20, v28, v16 \n"
"vwmaccu.vv v20, v14, v26 \n"
"vwmaccu.vv v20, v12, v24 \n"
"vsetvli zero, zero, e16, m4, ta, ma \n"
"vadd.vv v20, v20, v8 \n"
"vsetvli zero, zero, e8, m2, ta, ma \n"
"vnsrl.wi v18, v20, 8 \n"
"vse8.v v18, (%[dst_y]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[dst_y], %[dst_y], %[vl] \n"
"slli %[tmp], %[vl], 1 \n"
"add %[src_rgb], %[src_rgb], %[vl] \n"
"add %[src_rgb], %[src_rgb], %[tmp]\n"
"bgtz %[w], 1b \n"
: [src_rgb] "+r"(src_rgb), // %[src_rgb]
[dst_y] "+r"(dst_y), // %[dst_y]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[tmp] "=&r"(tmp) // %[tmp]
: [c] "r"(c) // %[c]
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15", "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", "v24",
"v25", "v26", "v27", "v28", "v29");
}
#endif
#ifdef HAS_ARGBTOUV444MATRIXROW_RVV
void ARGBToUV444MatrixRow_RVV(const uint8_t* src_argb,
uint8_t* dst_u,
uint8_t* dst_v,
int width,
const struct ArgbConstants* c) {
assert(width != 0);
size_t vl, tmp;
asm volatile(
"lh %[tmp], 64(%[c]) \n"
"vsetvli zero, %[w], e16, m4, ta, ma \n"
"vmv.v.x v16, %[tmp] \n"
"vsetvli zero, zero, e8, m2, ta, ma \n"
"lb %[vl], 16(%[c]) \n"
"lb %[tmp], 17(%[c]) \n"
"vmv.v.x v0, %[vl] \n"
"vmv.v.x v2, %[tmp] \n"
"lb %[vl], 18(%[c]) \n"
"lb %[tmp], 19(%[c]) \n"
"vmv.v.x v4, %[vl] \n"
"vmv.v.x v6, %[tmp] \n"
"lb %[vl], 32(%[c]) \n"
"lb %[tmp], 33(%[c]) \n"
"vmv.v.x v8, %[vl] \n"
"vmv.v.x v10, %[tmp] \n"
"lb %[vl], 34(%[c]) \n"
"lb %[tmp], 35(%[c]) \n"
"vmv.v.x v12, %[vl] \n"
"vmv.v.x v14, %[tmp] \n"
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vlseg4e8.v v24, (%[src_argb]) \n"
"vwmulsu.vv v20, v0, v24 \n"
"vwmaccsu.vv v20, v2, v26 \n"
"vwmaccsu.vv v20, v4, v28 \n"
"vwmaccsu.vv v20, v6, v30 \n"
"vsetvli zero, zero, e16, m4, ta, ma \n"
"vsub.vv v20, v16, v20 \n"
"vsetvli zero, zero, e8, m2, ta, ma \n"
"vnsrl.wi v20, v20, 8 \n"
"vse8.v v20, (%[dst_u]) \n"
"vwmulsu.vv v20, v8, v24 \n"
"vwmaccsu.vv v20, v10, v26 \n"
"vwmaccsu.vv v20, v12, v28 \n"
"vwmaccsu.vv v20, v14, v30 \n"
"vsetvli zero, zero, e16, m4, ta, ma \n"
"vsub.vv v20, v16, v20 \n"
"vsetvli zero, zero, e8, m2, ta, ma \n"
"vnsrl.wi v20, v20, 8 \n"
"vse8.v v20, (%[dst_v]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[dst_u], %[dst_u], %[vl] \n"
"add %[dst_v], %[dst_v], %[vl] \n"
"slli %[tmp], %[vl], 2 \n"
"add %[src_argb], %[src_argb], %[tmp]\n"
"bgtz %[w], 1b \n"
: [src_argb] "+r"(src_argb), // %[src_argb]
[dst_u] "+r"(dst_u), // %[dst_u]
[dst_v] "+r"(dst_v), // %[dst_v]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[tmp] "=&r"(tmp) // %[tmp]
: [c] "r"(c) // %[c]
: RVV_VL_CLOBBER "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7",
"v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
"v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25", "v26", "v27",
"v28", "v29", "v30", "v31");
}
#endif
#ifdef HAS_ARGBTOUVMATRIXROW_RVV
void ARGBToUVMatrixRow_RVV(const uint8_t* src_argb,
int src_stride_argb,
uint8_t* dst_u,
uint8_t* dst_v,
int width,
const struct ArgbConstants* c) {
assert(width != 0);
const uint8_t* src_argb_0 = src_argb;
const uint8_t* src_argb_1 = src_argb + src_stride_argb;
int w = width >> 1;
if (w > 0) {
size_t w_len = (size_t)w;
size_t vl, tmp;
asm volatile(
"lh %[tmp], 64(%[c]) \n"
"vsetvli zero, %[w_len], e16, m2, ta, ma\n"
"vmv.v.x v8, %[tmp] \n"
"vsetvli zero, zero, e8, m1, ta, ma \n"
"lb %[vl], 16(%[c]) \n"
"lb %[tmp], 17(%[c]) \n"
"vmv.v.x v10, %[vl] \n"
"vmv.v.x v11, %[tmp] \n"
"lb %[vl], 18(%[c]) \n"
"lb %[tmp], 19(%[c]) \n"
"vmv.v.x v12, %[vl] \n"
"vmv.v.x v13, %[tmp] \n"
"lb %[vl], 32(%[c]) \n"
"lb %[tmp], 33(%[c]) \n"
"vmv.v.x v14, %[vl] \n"
"vmv.v.x v15, %[tmp] \n"
"lb %[vl], 34(%[c]) \n"
"lb %[tmp], 35(%[c]) \n"
"vmv.v.x v16, %[vl] \n"
"vmv.v.x v17, %[tmp] \n"
"1: \n"
"vsetvli %[vl], %[w_len], e8, m1, ta, ma\n"
"vlseg8e8.v v20, (%[src_argb_0]) \n"
"vlseg8e8.v v0, (%[src_argb_1]) \n"
"vwaddu.vv v18, v20, v24 \n"
"vwaddu.wv v18, v18, v0 \n"
"vwaddu.wv v18, v18, v4 \n"
"vsetvli zero, zero, e16, m2, ta, ma \n"
"vadd.vi v18, v18, 2 \n"
"vsetvli zero, zero, e8, m1, ta, ma \n"
"vnsrl.wi v20, v18, 2 \n"
"vwaddu.vv v18, v21, v25 \n"
"vwaddu.wv v18, v18, v1 \n"
"vwaddu.wv v18, v18, v5 \n"
"vsetvli zero, zero, e16, m2, ta, ma \n"
"vadd.vi v18, v18, 2 \n"
"vsetvli zero, zero, e8, m1, ta, ma \n"
"vnsrl.wi v21, v18, 2 \n"
"vwaddu.vv v18, v22, v26 \n"
"vwaddu.wv v18, v18, v2 \n"
"vwaddu.wv v18, v18, v6 \n"
"vsetvli zero, zero, e16, m2, ta, ma \n"
"vadd.vi v18, v18, 2 \n"
"vsetvli zero, zero, e8, m1, ta, ma \n"
"vnsrl.wi v22, v18, 2 \n"
"vwaddu.vv v18, v23, v27 \n"
"vwaddu.wv v18, v18, v3 \n"
"vwaddu.wv v18, v18, v7 \n"
"vsetvli zero, zero, e16, m2, ta, ma \n"
"vadd.vi v18, v18, 2 \n"
"vsetvli zero, zero, e8, m1, ta, ma \n"
"vnsrl.wi v23, v18, 2 \n"
"vwmulsu.vv v18, v10, v20 \n"
"vwmaccsu.vv v18, v11, v21 \n"
"vwmaccsu.vv v18, v12, v22 \n"
"vwmaccsu.vv v18, v13, v23 \n"
"vsetvli zero, zero, e16, m2, ta, ma \n"
"vsub.vv v18, v8, v18 \n"
"vsetvli zero, zero, e8, m1, ta, ma \n"
"vnsrl.wi v24, v18, 8 \n"
"vse8.v v24, (%[dst_u]) \n"
"vwmulsu.vv v18, v14, v20 \n"
"vwmaccsu.vv v18, v15, v21 \n"
"vwmaccsu.vv v18, v16, v22 \n"
"vwmaccsu.vv v18, v17, v23 \n"
"vsetvli zero, zero, e16, m2, ta, ma \n"
"vsub.vv v18, v8, v18 \n"
"vsetvli zero, zero, e8, m1, ta, ma \n"
"vnsrl.wi v20, v18, 8 \n"
"vse8.v v20, (%[dst_v]) \n"
"sub %[w_len], %[w_len], %[vl] \n"
"add %[dst_u], %[dst_u], %[vl] \n"
"add %[dst_v], %[dst_v], %[vl] \n"
"slli %[tmp], %[vl], 3 \n"
"add %[src_argb_0], %[src_argb_0], %[tmp]\n"
"add %[src_argb_1], %[src_argb_1], %[tmp]\n"
"bgtz %[w_len], 1b \n"
: [src_argb_0] "+r"(src_argb_0), // %[src_argb_0]
[src_argb_1] "+r"(src_argb_1), // %[src_argb_1]
[dst_u] "+r"(dst_u), // %[dst_u]
[dst_v] "+r"(dst_v), // %[dst_v]
[w_len] "+r"(w_len), // %[w_len]
[vl] "=&r"(vl), // %[vl]
[tmp] "=&r"(tmp) // %[tmp]
: [c] "r"(c) // %[c]
: RVV_VL_CLOBBER "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6",
"v7", "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15", "v16",
"v17", "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25", "v26",
"v27");
}
if (width & 1) {
uint8_t b = (src_argb_0[0] + src_argb_1[0] + 1) >> 1;
uint8_t g = (src_argb_0[1] + src_argb_1[1] + 1) >> 1;
uint8_t r = (src_argb_0[2] + src_argb_1[2] + 1) >> 1;
uint8_t a = (src_argb_0[3] + src_argb_1[3] + 1) >> 1;
dst_u[0] = (c->kAddUV[0] - (c->kRGBToU[0] * b + c->kRGBToU[1] * g +
c->kRGBToU[2] * r + c->kRGBToU[3] * a)) >>
8;
dst_v[0] = (c->kAddUV[0] - (c->kRGBToV[0] * b + c->kRGBToV[1] * g +
c->kRGBToV[2] * r + c->kRGBToV[3] * a)) >>
8;
}
}
#endif
#ifdef HAS_RGBTOUV444MATRIXROW_RVV
void RGBToUV444MatrixRow_RVV(const uint8_t* src_rgb,
uint8_t* dst_u,
uint8_t* dst_v,
int width,
const struct ArgbConstants* c) {
assert(width != 0);
size_t vl, tmp;
asm volatile(
"lh %[tmp], 64(%[c]) \n"
"vsetvli zero, %[w], e16, m4, ta, ma \n"
"vmv.v.x v16, %[tmp] \n"
"vsetvli zero, zero, e8, m2, ta, ma \n"
"lb %[vl], 16(%[c]) \n"
"lb %[tmp], 17(%[c]) \n"
"vmv.v.x v0, %[vl] \n"
"vmv.v.x v2, %[tmp] \n"
"lb %[vl], 18(%[c]) \n"
"vmv.v.x v4, %[vl] \n"
"lb %[vl], 32(%[c]) \n"
"lb %[tmp], 33(%[c]) \n"
"vmv.v.x v8, %[vl] \n"
"vmv.v.x v10, %[tmp] \n"
"lb %[vl], 34(%[c]) \n"
"vmv.v.x v12, %[vl] \n"
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vlseg3e8.v v24, (%[src_rgb]) \n"
"vwmulsu.vv v20, v4, v28 \n"
"vwmaccsu.vv v20, v2, v26 \n"
"vwmaccsu.vv v20, v0, v24 \n"
"vsetvli zero, zero, e16, m4, ta, ma \n"
"vsub.vv v20, v16, v20 \n"
"vsetvli zero, zero, e8, m2, ta, ma \n"
"vnsrl.wi v20, v20, 8 \n"
"vse8.v v20, (%[dst_u]) \n"
"vwmulsu.vv v20, v12, v28 \n"
"vwmaccsu.vv v20, v10, v26 \n"
"vwmaccsu.vv v20, v8, v24 \n"
"vsetvli zero, zero, e16, m4, ta, ma \n"
"vsub.vv v20, v16, v20 \n"
"vsetvli zero, zero, e8, m2, ta, ma \n"
"vnsrl.wi v20, v20, 8 \n"
"vse8.v v20, (%[dst_v]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[dst_u], %[dst_u], %[vl] \n"
"add %[dst_v], %[dst_v], %[vl] \n"
"slli %[tmp], %[vl], 1 \n"
"add %[src_rgb], %[src_rgb], %[vl] \n"
"add %[src_rgb], %[src_rgb], %[tmp]\n"
"bgtz %[w], 1b \n"
: [src_rgb] "+r"(src_rgb), // %[src_rgb]
[dst_u] "+r"(dst_u), // %[dst_u]
[dst_v] "+r"(dst_v), // %[dst_v]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[tmp] "=&r"(tmp) // %[tmp]
: [c] "r"(c) // %[c]
: RVV_VL_CLOBBER "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v8", "v9",
"v10", "v11", "v12", "v13", "v16", "v17", "v18", "v19", "v20", "v21",
"v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29");
}
#endif
#ifdef HAS_RGBTOUVMATRIXROW_RVV
void RGBToUVMatrixRow_RVV(const uint8_t* src_rgb,
int src_stride_rgb,
uint8_t* dst_u,
uint8_t* dst_v,
int width,
const struct ArgbConstants* c) {
assert(width != 0);
const uint8_t* src_rgb_0 = src_rgb;
const uint8_t* src_rgb_1 = src_rgb + src_stride_rgb;
int w = width >> 1;
if (w > 0) {
size_t w_len = (size_t)w;
size_t vl, tmp;
asm volatile(
"lh %[tmp], 64(%[c]) \n"
"vsetvli zero, %[w_len], e16, m2, ta, ma\n"
"vmv.v.x v8, %[tmp] \n"
"vsetvli zero, zero, e8, m1, ta, ma \n"
"lb %[vl], 16(%[c]) \n"
"lb %[tmp], 17(%[c]) \n"
"vmv.v.x v10, %[vl] \n"
"vmv.v.x v11, %[tmp] \n"
"lb %[vl], 18(%[c]) \n"
"vmv.v.x v12, %[vl] \n"
"lb %[vl], 32(%[c]) \n"
"lb %[tmp], 33(%[c]) \n"
"vmv.v.x v14, %[vl] \n"
"vmv.v.x v15, %[tmp] \n"
"lb %[vl], 34(%[c]) \n"
"vmv.v.x v16, %[vl] \n"
"1: \n"
"vsetvli %[vl], %[w_len], e8, m1, ta, ma\n"
"vlseg6e8.v v20, (%[src_rgb_0]) \n"
"vlseg6e8.v v0, (%[src_rgb_1]) \n"
"vwaddu.vv v18, v20, v23 \n"
"vwaddu.wv v18, v18, v0 \n"
"vwaddu.wv v18, v18, v3 \n"
"vsetvli zero, zero, e16, m2, ta, ma \n"
"vadd.vi v18, v18, 2 \n"
"vsetvli zero, zero, e8, m1, ta, ma \n"
"vnsrl.wi v20, v18, 2 \n"
"vwaddu.vv v18, v21, v24 \n"
"vwaddu.wv v18, v18, v1 \n"
"vwaddu.wv v18, v18, v4 \n"
"vsetvli zero, zero, e16, m2, ta, ma \n"
"vadd.vi v18, v18, 2 \n"
"vsetvli zero, zero, e8, m1, ta, ma \n"
"vnsrl.wi v21, v18, 2 \n"
"vwaddu.vv v18, v22, v25 \n"
"vwaddu.wv v18, v18, v2 \n"
"vwaddu.wv v18, v18, v5 \n"
"vsetvli zero, zero, e16, m2, ta, ma \n"
"vadd.vi v18, v18, 2 \n"
"vsetvli zero, zero, e8, m1, ta, ma \n"
"vnsrl.wi v22, v18, 2 \n"
"vwmulsu.vv v18, v12, v22 \n"
"vwmaccsu.vv v18, v11, v21 \n"
"vwmaccsu.vv v18, v10, v20 \n"
"vsetvli zero, zero, e16, m2, ta, ma \n"
"vsub.vv v18, v8, v18 \n"
"vsetvli zero, zero, e8, m1, ta, ma \n"
"vnsrl.wi v24, v18, 8 \n"
"vse8.v v24, (%[dst_u]) \n"
"vwmulsu.vv v18, v16, v22 \n"
"vwmaccsu.vv v18, v15, v21 \n"
"vwmaccsu.vv v18, v14, v20 \n"
"vsetvli zero, zero, e16, m2, ta, ma \n"
"vsub.vv v18, v8, v18 \n"
"vsetvli zero, zero, e8, m1, ta, ma \n"
"vnsrl.wi v20, v18, 8 \n"
"vse8.v v20, (%[dst_v]) \n"
"sub %[w_len], %[w_len], %[vl] \n"
"add %[dst_u], %[dst_u], %[vl] \n"
"add %[dst_v], %[dst_v], %[vl] \n"
"slli %[tmp], %[vl], 1 \n"
"add %[tmp], %[tmp], %[vl] \n"
"slli %[tmp], %[tmp], 1 \n"
"add %[src_rgb_0], %[src_rgb_0], %[tmp]\n"
"add %[src_rgb_1], %[src_rgb_1], %[tmp]\n"
"bgtz %[w_len], 1b \n"
: [src_rgb_0] "+r"(src_rgb_0), // %[src_rgb_0]
[src_rgb_1] "+r"(src_rgb_1), // %[src_rgb_1]
[dst_u] "+r"(dst_u), // %[dst_u]
[dst_v] "+r"(dst_v), // %[dst_v]
[w_len] "+r"(w_len), // %[w_len]
[vl] "=&r"(vl), // %[vl]
[tmp] "=&r"(tmp) // %[tmp]
: [c] "r"(c) // %[c]
: RVV_VL_CLOBBER "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v8",
"v9", "v10", "v11", "v12", "v14", "v15", "v16", "v18", "v19", "v20",
"v21", "v22", "v23", "v24", "v25");
}
if (width & 1) {
uint8_t b = (src_rgb_0[0] + src_rgb_1[0] + 1) >> 1;
uint8_t g = (src_rgb_0[1] + src_rgb_1[1] + 1) >> 1;
uint8_t r = (src_rgb_0[2] + src_rgb_1[2] + 1) >> 1;
dst_u[0] = (c->kAddUV[0] -
(c->kRGBToU[0] * b + c->kRGBToU[1] * g + c->kRGBToU[2] * r)) >>
8;
dst_v[0] = (c->kAddUV[0] -
(c->kRGBToV[0] * b + c->kRGBToV[1] * g + c->kRGBToV[2] * r)) >>
8;
}
}
#endif
// Blend src_argb over src_argb1 and store to dst_argb.
// dst_argb may be src_argb or src_argb1.
// src_argb: RGB values have already been pre-multiplied by the a.
#ifdef HAS_ARGBBLENDROW_RVV
void ARGBBlendRow_RVV(const uint8_t* src_argb,
const uint8_t* src_argb1,
uint8_t* dst_argb,
int width) {
size_t vl;
asm volatile(
"vsetvli %[vl], zero, e8, m2, ta, ma \n"
"vmv.v.i v14, -1 \n"
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vlseg4e8.v v16, (%[src_argb]) \n"
"vlseg4e8.v v24, (%[src_argb1]) \n"
"vmulhu.vv v8, v24, v22 \n"
"vmulhu.vv v10, v26, v22 \n"
"vmulhu.vv v12, v28, v22 \n"
"vsub.vv v8, v24, v8 \n"
"vsub.vv v10, v26, v10 \n"
"vsub.vv v12, v28, v12 \n"
"vsaddu.vv v8, v8, v16 \n"
"vsaddu.vv v10, v10, v18 \n"
"vsaddu.vv v12, v12, v20 \n"
"vsseg4e8.v v8, (%[dst_argb]) \n"
"sub %[w], %[w], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[src_argb], %[src_argb], %[vl]\n"
"add %[src_argb1], %[src_argb1], %[vl]\n"
"add %[dst_argb], %[dst_argb], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_argb] "+r"(src_argb), // %[src_argb]
[src_argb1] "+r"(src_argb1), // %[src_argb1]
[dst_argb] "+r"(dst_argb), // %[dst_argb]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15", "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", "v24",
"v25", "v26", "v27", "v28", "v29", "v30", "v31");
}
#endif
#ifdef HAS_BLENDPLANEROW_RVV
void BlendPlaneRow_RVV(const uint8_t* src0,
const uint8_t* src1,
const uint8_t* alpha,
uint8_t* dst,
int width) {
int vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vle8.v v16, (%[src0]) \n"
"vle8.v v18, (%[src1]) \n"
"vle8.v v20, (%[alpha]) \n"
"vrsub.vx v22, v20, %[k255] \n"
"vwmulu.vv v8, v20, v16 \n"
"vwmaccu.vv v8, v22, v18 \n"
"vsetvli zero, zero, e16, m4, ta, ma \n"
"vadd.vx v8, v8, %[k255] \n"
"vsetvli zero, zero, e8, m2, ta, ma \n"
"vnsrl.wi v16, v8, 8 \n"
"vse8.v v16, (%[dst]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[src0], %[src0], %[vl] \n"
"add %[src1], %[src1], %[vl] \n"
"add %[alpha], %[alpha], %[vl] \n"
"add %[dst], %[dst], %[vl] \n"
"bgtz %[w], 1b \n"
: [src0] "+r"(src0), // %[src0]
[src1] "+r"(src1), // %[src1]
[alpha] "+r"(alpha), // %[alpha]
[dst] "+r"(dst), // %[dst]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
: [k255] "r"(255)
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v16", "v17", "v18",
"v19", "v20", "v21", "v22", "v23");
}
#endif
// Attenuate: (f * a + 255) >> 8
#ifdef HAS_ARGBATTENUATEROW_RVV
void ARGBAttenuateRow_RVV(const uint8_t* src_argb,
uint8_t* dst_argb,
int width) {
int vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vlseg4e8.v v8, (%[src_argb]) \n"
"vwmulu.vv v16, v8, v14 \n"
"vwmulu.vv v20, v10, v14 \n"
"vwmulu.vv v24, v12, v14 \n"
"vsetvli zero, zero, e16, m4, ta, ma \n"
"vadd.vx v16, v16, %[k255] \n"
"vadd.vx v20, v20, %[k255] \n"
"vadd.vx v24, v24, %[k255] \n"
"vsetvli zero, zero, e8, m2, ta, ma \n"
"vnsrl.wi v8, v16, 8 \n"
"vnsrl.wi v10, v20, 8 \n"
"vnsrl.wi v12, v24, 8 \n"
"vsseg4e8.v v8, (%[dst_argb]) \n"
"sub %[w], %[w], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[src_argb], %[src_argb], %[vl]\n"
"add %[dst_argb], %[dst_argb], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_argb] "+r"(src_argb), // %[src_argb]
[dst_argb] "+r"(dst_argb), // %[dst_argb]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
: [k255] "r"(255)
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15", "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", "v24",
"v25", "v26", "v27");
}
#endif
#ifdef HAS_ARGBMULTIPLYROW_RVV
void ARGBMultiplyRow_RVV(const uint8_t* src_argb,
const uint8_t* src_argb1,
uint8_t* dst_argb,
int width) {
assert(width != 0);
size_t w = (size_t)width * 4;
size_t vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vle8.v v8, (%[src0]) \n"
"vle8.v v10, (%[src1]) \n"
"vwmulu.vv v12, v8, v10 \n"
"vwaddu.wx v12, v12, %[k128] \n"
"vnsrl.wi v8, v12, 8 \n"
"vse8.v v8, (%[dst]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[src0], %[src0], %[vl] \n"
"add %[src1], %[src1], %[vl] \n"
"add %[dst], %[dst], %[vl] \n"
"bgtz %[w], 1b \n"
: [src0] "+r"(src_argb), // %[src0]
[src1] "+r"(src_argb1), // %[src1]
[dst] "+r"(dst_argb), // %[dst]
[w] "+r"(w), // %[w]
[vl] "=&r"(vl) // %[vl]
: [k128] "r"(128) // %[k128]
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15");
}
#endif
#ifdef HAS_ARGBEXTRACTALPHAROW_RVV
void ARGBExtractAlphaRow_RVV(const uint8_t* src_argb,
uint8_t* dst_a,
int width) {
int vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e16, m4, ta, ma \n"
"vle32.v v8, (%[src_argb]) \n"
"vnsrl.wi v16, v8, 16 \n"
"vsetvli zero, zero, e8, m2, ta, ma \n"
"vnsrl.wi v8, v16, 8 \n"
"vse8.v v8, (%[dst_a]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[dst_a], %[dst_a], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[src_argb], %[src_argb], %[vl]\n"
"bgtz %[w], 1b \n"
: [src_argb] "+r"(src_argb), // %[src_argb]
[dst_a] "+r"(dst_a), // %[dst_a]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
:
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15", "v16", "v17", "v18", "v19");
}
#endif
#ifdef HAS_ARGBCOPYYTOALPHAROW_RVV
void ARGBCopyYToAlphaRow_RVV(const uint8_t* src, uint8_t* dst, int width) {
int vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e32, m8, ta, ma \n"
"vle8.v v16, (%[src]) \n"
"vle32.v v8, (%[dst]) \n"
"vzext.vf4 v24, v16 \n"
"vand.vx v8, v8, %[mask] \n"
"vsll.vi v24, v24, 24 \n"
"vor.vv v8, v8, v24 \n"
"vse32.v v8, (%[dst]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[src], %[src], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[dst], %[dst], %[vl] \n"
"bgtz %[w], 1b \n"
: [src] "+r"(src), // %[src]
[dst] "+r"(dst), // %[dst]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
: [mask] "r"(0x00ffffffu) // %[mask]
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15", "v16", "v17", "v24", "v25", "v26", "v27", "v28", "v29", "v30",
"v31");
}
#endif
#ifdef HAS_CONVERT16TO8ROW_RVV
void Convert16To8Row_RVV(const uint16_t* src_y,
uint8_t* dst_y,
int scale,
int width) {
int vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vle16.v v8, (%[src_y]) \n"
"vnsrl.wx v16, v8, %[shift] \n"
"vse8.v v16, (%[dst_y]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[dst_y], %[dst_y], %[vl] \n"
"slli %[vl], %[vl], 1 \n"
"add %[src_y], %[src_y], %[vl] \n"
"bgtz %[w], 1b \n"
: [src_y] "+r"(src_y), // %[src_y]
[dst_y] "+r"(dst_y), // %[dst_y]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
: [shift] "r"(__builtin_clz((int32_t)scale) - 15) // %[shift]
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v16", "v17");
}
#endif
#ifdef HAS_CONVERT8TO16ROW_RVV
// Use scale to convert lsb formats to msb, depending how many bits there are:
// 512 = 9 bits
// 1024 = 10 bits
// 4096 = 12 bits
// 65536 = 16 bits
void Convert8To16Row_RVV(const uint8_t* src_y,
uint16_t* dst_y,
int bits,
int width) {
int vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, m2, ta, ma \n"
"vle8.v v16, (%[src_y]) \n"
"vwcvtu.x.x.v v8, v16 \n"
"vsetvli zero, zero, e16, m4, ta, ma \n"
"vmul.vx v8, v8, %[k0101] \n"
"vsrl.vx v8, v8, %[shift] \n"
"vse16.v v8, (%[dst_y]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[src_y], %[src_y], %[vl] \n"
"slli %[vl], %[vl], 1 \n"
"add %[dst_y], %[dst_y], %[vl] \n"
"bgtz %[w], 1b \n"
: [src_y] "+r"(src_y), // %[src_y]
[dst_y] "+r"(dst_y), // %[dst_y]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
: [shift] "r"(16 - bits), [k0101] "r"(0x0101)
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v16", "v17");
}
#endif
#ifdef HAS_MULTIPLYROW_16_RVV
void MultiplyRow_16_RVV(const uint16_t* src_y,
uint16_t* dst_y,
int scale,
int width) {
int vl;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e16, m4, ta, ma \n"
"vle16.v v8, (%[src_y]) \n"
"vmul.vx v8, v8, %[scale] \n"
"vse16.v v8, (%[dst_y]) \n"
"sub %[w], %[w], %[vl] \n"
"slli %[vl], %[vl], 1 \n"
"add %[src_y], %[src_y], %[vl] \n"
"add %[dst_y], %[dst_y], %[vl] \n"
"bgtz %[w], 1b \n"
: [src_y] "+r"(src_y), // %[src_y]
[dst_y] "+r"(dst_y), // %[dst_y]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
: [scale] "r"(scale) // %[scale]
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11");
}
#endif
#ifdef HAS_HALFROW_16TO8_RVV
void HalfRow_16To8_RVV(const uint16_t* src_uv,
ptrdiff_t src_uv_stride,
uint8_t* dst_uv,
int scale,
int width) {
int vl;
asm volatile(
"slli %[src_uv1], %[src_uv1], 1 \n"
"add %[src_uv1], %[src_uv], %[src_uv1]\n"
"csrwi vxrm, 0 \n"
"1: \n"
"vsetvli %[vl], %[w], e16, m4, ta, ma \n"
"vle16.v v8, (%[src_uv]) \n"
"vle16.v v12, (%[src_uv1]) \n"
"vaaddu.vv v8, v8, v12 \n"
"vsetvli zero, zero, e8, m2, ta, ma \n"
"vnsrl.wx v16, v8, %[shift] \n"
"vse8.v v16, (%[dst_uv]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[dst_uv], %[dst_uv], %[vl] \n"
"slli %[vl], %[vl], 1 \n"
"add %[src_uv], %[src_uv], %[vl] \n"
"add %[src_uv1], %[src_uv1], %[vl] \n"
"bgtz %[w], 1b \n"
: [src_uv] "+r"(src_uv), // %[src_uv]
[src_uv1] "+r"(src_uv_stride), // %[src_uv1]
[dst_uv] "+r"(dst_uv), // %[dst_uv]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
: [shift] "r"(__builtin_clz((int32_t)scale) - 15) // %[shift]
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15", "v16", "v17");
}
#endif
#ifdef HAS_HALFWIDTHROW_16TO8_RVV
void HalfWidthRow_16To8_RVV(const uint16_t* src_uv,
ptrdiff_t src_uv_stride,
uint8_t* dst_uv,
int scale,
int width) {
int vl;
asm volatile(
"slli %[t], %[t], 1 \n"
"add %[t], %[s], %[t] \n"
"1: \n"
"vsetvli %[vl], %[w], e16, m2, ta, ma \n"
"vlseg2e16.v v16, (%[s]) \n"
"vlseg2e16.v v20, (%[t]) \n"
"vwaddu.vx v8, v16, %[c2] \n"
"vwaddu.wv v8, v8, v18 \n"
"vwaddu.wv v8, v8, v20 \n"
"vwaddu.wv v8, v8, v22 \n"
"vnsrl.wi v16, v8, 2 \n"
"vsetvli zero, zero, e8, m1, ta, ma \n"
"vnsrl.wx v8, v16, %[shift] \n"
"vse8.v v8, (%[dst_uv]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[dst_uv], %[dst_uv], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[s], %[s], %[vl] \n"
"add %[t], %[t], %[vl] \n"
"bgtz %[w], 1b \n"
: [s] "+r"(src_uv), // %[s]
[t] "+r"(src_uv_stride), // %[t]
[dst_uv] "+r"(dst_uv), // %[dst_uv]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
: [shift] "r"(__builtin_clz((int32_t)scale) - 15), // %[shift]
[c2] "r"(2) // %[c2]
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v16", "v17", "v18",
"v19", "v20", "v21", "v22", "v23");
}
#endif
#ifdef HAS_ARGBMIRRORROW_RVV
void ARGBMirrorRow_RVV(const uint8_t* src, uint8_t* dst, int width) {
int vl;
ptrdiff_t byte_vl;
src += (ptrdiff_t)width * 4;
asm volatile(
"vsetvli %[vl], %[w], e32, m8, ta, ma \n"
"slli %[byte_vl], %[vl], 2 \n"
"vid.v v16 \n"
"addi %[vl], %[vl], -1 \n"
"vrsub.vx v16, v16, %[vl] \n"
"addi %[vl], %[vl], 1 \n"
"sub %[w], %[w], %[vl] \n"
"bltz %[w], 2f \n"
"1: \n"
"sub %[src], %[src], %[byte_vl] \n"
"vle32.v v8, (%[src]) \n"
"vrgather.vv v0, v8, v16 \n"
"vse32.v v0, (%[dst]) \n"
"add %[dst], %[dst], %[byte_vl] \n"
"sub %[w], %[w], %[vl] \n"
"bgez %[w], 1b \n"
"2: \n"
"add %[w], %[w], %[vl] \n"
"beqz %[w], 3f \n"
"vsetvli %[vl], %[w], e32, m8, ta, ma \n"
"slli %[byte_vl], %[vl], 2 \n"
"vid.v v16 \n"
"addi %[vl], %[vl], -1 \n"
"vrsub.vx v16, v16, %[vl] \n"
"sub %[src], %[src], %[byte_vl] \n"
"vle32.v v8, (%[src]) \n"
"vrgather.vv v0, v8, v16 \n"
"vse32.v v0, (%[dst]) \n"
"3: \n"
: [src] "+r"(src), // %[src]
[dst] "+r"(dst), // %[dst]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[byte_vl] "=&r"(byte_vl) // %[byte_vl]
:
: RVV_VL_CLOBBER "vtype", "memory", "v0", "v1", "v2", "v3", "v4", "v5",
"v6", "v7", "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15", "v16",
"v17", "v18", "v19", "v20", "v21", "v22", "v23");
}
#endif // HAS_ARGBMIRRORROW_RVV
#ifdef HAS_ARGBSETROW_RVV
void ARGBSetRow_RVV(uint8_t* dst_argb, uint32_t v32, int width) {
size_t vl;
asm volatile(
"vsetvli %[vl], %[w], e32, m8, ta, ma \n"
"vmv.v.x v8, %[v32] \n"
"1: \n"
"vsetvli %[vl], %[w], e32, m8, ta, ma \n"
"vse32.v v8, (%[dst]) \n"
"sub %[w], %[w], %[vl] \n"
"slli %[vl], %[vl], 2 \n"
"add %[dst], %[dst], %[vl] \n"
"bnez %[w], 1b \n"
: [dst] "+r"(dst_argb), // %[dst]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl) // %[vl]
: [v32] "r"(v32) // %[v32]
: RVV_VL_CLOBBER "memory", "v8", "v9", "v10", "v11", "v12", "v13", "v14",
"v15");
}
#endif // HAS_ARGBSETROW_RVV
#ifdef HAS_ARGBSHUFFLEROW_RVV
// Shuffle the 4 bytes of each ARGB pixel with a 16 byte shuffler table (only
// the first 4 entries are used, the pattern repeats every pixel), e.g.
// {0, 1, 2, 3} is a copy and {2, 1, 0, 3} swaps R and B.
// Byte index vector: index[i] = (i & ~3) + shuffler[i & 3], gathered with a
// 16 bit index so any VLEN works (e8 indices would be limited to 256 bytes).
void ARGBShuffleRow_RVV(const uint8_t* src_argb,
uint8_t* dst_argb,
const uint8_t* shuffler,
int width) {
size_t vl;
size_t w = (size_t)width * 4; // bytes
// The 4 shuffler bytes packed little endian so a 32 bit broadcast lays them
// out as s0 s1 s2 s3 s0 s1 s2 s3 ... in memory order.
uint32_t pattern = (uint32_t)shuffler[0] | ((uint32_t)shuffler[1] << 8) |
((uint32_t)shuffler[2] << 16) |
((uint32_t)shuffler[3] << 24);
asm volatile(
// v16..v23 (e16, m8): index = (i & ~3) + shuffler[i & 3].
"vsetvli %[vl], %[w], e16, m8, ta, ma \n"
"vid.v v16 \n"
"vand.vi v16, v16, -4 \n"
"srli %[vl], %[vl], 2 \n"
"vsetvli zero, %[vl], e32, m4, ta, ma \n"
"vmv.v.x v8, %[pattern] \n" // s0 s1 s2 s3 ...
"vsetvli %[vl], %[w], e16, m8, ta, ma \n"
"vzext.vf2 v24, v8 \n" // bytes -> e16
"vadd.vv v16, v16, v24 \n"
"1: \n"
"vsetvli %[vl], %[w], e8, m4, ta, ma \n"
"vle8.v v8, (%[src]) \n"
"vrgatherei16.vv v0, v8, v16 \n"
"vse8.v v0, (%[dst]) \n"
"sub %[w], %[w], %[vl] \n"
"add %[src], %[src], %[vl] \n"
"add %[dst], %[dst], %[vl] \n"
"bnez %[w], 1b \n"
: [src] "+r"(src_argb), // %[src]
[dst] "+r"(dst_argb), // %[dst]
[w] "+r"(w), // %[w]
[vl] "=&r"(vl) // %[vl]
: [pattern] "r"(pattern) // %[pattern]
: RVV_VL_CLOBBER "memory", "v0", "v1", "v2", "v3", "v8", "v9", "v10",
"v11", "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", "v24",
"v25", "v26", "v27", "v28", "v29", "v30", "v31");
}
#endif // HAS_ARGBSHUFFLEROW_RVV
#ifdef HAS_MIRRORUVROW_RVV
void MirrorUVRow_RVV(const uint8_t* src_uv, uint8_t* dst_uv, int width) {
int vl;
ptrdiff_t byte_vl;
src_uv += (ptrdiff_t)width * 2;
asm volatile(
"vsetvli %[vl], %[w], e16, m8, ta, ma \n"
"slli %[byte_vl], %[vl], 1 \n"
"vid.v v16 \n"
"addi %[vl], %[vl], -1 \n"
"vrsub.vx v16, v16, %[vl] \n"
"addi %[vl], %[vl], 1 \n"
"sub %[w], %[w], %[vl] \n"
"bltz %[w], 2f \n"
"1: \n"
"sub %[src], %[src], %[byte_vl] \n"
"vle16.v v8, (%[src]) \n"
"vrgather.vv v0, v8, v16 \n"
"vse16.v v0, (%[dst]) \n"
"add %[dst], %[dst], %[byte_vl] \n"
"sub %[w], %[w], %[vl] \n"
"bgez %[w], 1b \n"
"2: \n"
"add %[w], %[w], %[vl] \n"
"beqz %[w], 3f \n"
"vsetvli %[vl], %[w], e16, m8, ta, ma \n"
"slli %[byte_vl], %[vl], 1 \n"
"vid.v v16 \n"
"addi %[vl], %[vl], -1 \n"
"vrsub.vx v16, v16, %[vl] \n"
"sub %[src], %[src], %[byte_vl] \n"
"vle16.v v8, (%[src]) \n"
"vrgather.vv v0, v8, v16 \n"
"vse16.v v0, (%[dst]) \n"
"3: \n"
: [src] "+r"(src_uv), // %[src]
[dst] "+r"(dst_uv), // %[dst]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[byte_vl] "=&r"(byte_vl) // %[byte_vl]
:
: RVV_VL_CLOBBER "vtype", "memory", "v0", "v1", "v2", "v3", "v4", "v5",
"v6", "v7", "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15", "v16",
"v17", "v18", "v19", "v20", "v21", "v22", "v23");
}
#endif // HAS_MIRRORUVROW_RVV
#ifdef HAS_SSIM4X4ROW_RVV
#define SSIM4X4_LOAD_RVV(ptr_a, ptr_b) \
"vlseg4e8.v v0, (" #ptr_a \
") \n" \
"vlseg4e8.v v4, (" #ptr_b \
") \n" \
"vwaddu.vv v10, v0, v1 \n" \
"vwaddu.vv v11, v2, v3 \n" \
"vwaddu.vv v12, v4, v5 \n" \
"vwaddu.vv v13, v6, v7 \n" \
"vwmulu.vv v14, v0, v4 \n" \
"vwmulu.vv v15, v1, v5 \n" \
"vwmulu.vv v24, v2, v6 \n" \
"vwmulu.vv v25, v3, v7 \n" \
"vwmulu.vv v26, v0, v0 \n" \
"vwmulu.vv v27, v1, v1 \n" \
"vwmulu.vv v28, v2, v2 \n" \
"vwmulu.vv v29, v3, v3 \n" \
"vwmulu.vv v0, v4, v4 \n" \
"vwmulu.vv v1, v5, v5 \n" \
"vwmulu.vv v2, v6, v6 \n" \
"vwmulu.vv v3, v7, v7 \n"
#define SSIM4X4_ACCUM_RVV(ptr_a, ptr_b) \
"vsetvli zero, zero, e8, mf2, ta, ma \n" \
SSIM4X4_LOAD_RVV(ptr_a, ptr_b) \
"vsetvli zero, zero, e16, m1, ta, ma \n" \
"vadd.vv v10, v10, v11 \n" \
"vadd.vv v12, v12, v13 \n" \
"vadd.vv v8, v8, v10 \n" \
"vadd.vv v9, v9, v12 \n" \
"vwaddu.wv v22, v22, v14 \n" \
"vwaddu.wv v22, v22, v15 \n" \
"vwaddu.wv v22, v22, v24 \n" \
"vwaddu.wv v22, v22, v25 \n" \
"vwaddu.wv v20, v20, v26 \n" \
"vwaddu.wv v20, v20, v27 \n" \
"vwaddu.wv v20, v20, v28 \n" \
"vwaddu.wv v20, v20, v29 \n" \
"vwaddu.wv v20, v20, v0 \n" \
"vwaddu.wv v20, v20, v1 \n" \
"vwaddu.wv v20, v20, v2 \n" \
"vwaddu.wv v20, v20, v3 \n"
void Ssim4x4Row_RVV(const uint8_t* src_a,
int stride_a,
const uint8_t* src_b,
int stride_b,
uint32_t* dst,
int width) {
size_t vl;
size_t byte_vl;
const uint8_t* tmp_a;
const uint8_t* tmp_b;
width >>= 2;
asm volatile(
"1: \n"
"vsetvli %[vl], %[w], e8, mf2, ta, ma \n"
"add %[tmp_a], %[src_a], %[stride_a]\n"
"add %[tmp_b], %[src_b], %[stride_b]\n"
SSIM4X4_LOAD_RVV(%[src_a], %[src_b])
"vsetvli zero, zero, e16, m1, ta, ma \n"
"vadd.vv v8, v10, v11 \n"
"vadd.vv v9, v12, v13 \n"
"vwaddu.vv v22, v14, v15 \n"
"vwaddu.wv v22, v22, v24 \n"
"vwaddu.wv v22, v22, v25 \n"
"vwaddu.vv v20, v26, v27 \n"
"vwaddu.wv v20, v20, v28 \n"
"vwaddu.wv v20, v20, v29 \n"
"vwaddu.wv v20, v20, v0 \n"
"vwaddu.wv v20, v20, v1 \n"
"vwaddu.wv v20, v20, v2 \n"
"vwaddu.wv v20, v20, v3 \n"
SSIM4X4_ACCUM_RVV(%[tmp_a], %[tmp_b])
"add %[tmp_a], %[tmp_a], %[stride_a]\n"
"add %[tmp_b], %[tmp_b], %[stride_b]\n"
SSIM4X4_ACCUM_RVV(%[tmp_a], %[tmp_b])
"add %[tmp_a], %[tmp_a], %[stride_a]\n"
"add %[tmp_b], %[tmp_b], %[stride_b]\n"
SSIM4X4_ACCUM_RVV(%[tmp_a], %[tmp_b])
"vwcvtu.x.x.v v16, v8 \n"
"vwcvtu.x.x.v v18, v9 \n"
"vsetvli zero, zero, e32, m2, ta, ma \n"
"vsseg4e32.v v16, (%[dst]) \n"
"sub %[w], %[w], %[vl] \n"
"slli %[byte_vl], %[vl], 2 \n"
"add %[src_a], %[src_a], %[byte_vl]\n"
"add %[src_b], %[src_b], %[byte_vl]\n"
"slli %[byte_vl], %[vl], 4 \n"
"add %[dst], %[dst], %[byte_vl] \n"
"bgtz %[w], 1b \n"
: [src_a] "+r"(src_a), // %[src_a]
[src_b] "+r"(src_b), // %[src_b]
[dst] "+r"(dst), // %[dst]
[w] "+r"(width), // %[w]
[vl] "=&r"(vl), // %[vl]
[byte_vl] "=&r"(byte_vl), // %[byte_vl]
[tmp_a] "=&r"(tmp_a), // %[tmp_a]
[tmp_b] "=&r"(tmp_b) // %[tmp_b]
: [stride_a] "r"((ptrdiff_t)stride_a), // %[stride_a]
[stride_b] "r"((ptrdiff_t)stride_b) // %[stride_b]
: RVV_VL_CLOBBER "vtype", "memory", "v0", "v1", "v2", "v3", "v4", "v5",
"v6", "v7", "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15", "v16",
"v17", "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25", "v26",
"v27", "v28", "v29");
}
#undef SSIM4X4_LOAD_RVV
#undef SSIM4X4_ACCUM_RVV
#endif // HAS_SSIM4X4ROW_RVV
#ifdef HAS_SSIMWINDOWROW_RVV
float SsimWindowRow_RVV(const uint32_t* row0,
const uint32_t* row1,
int num_windows) {
size_t vl;
size_t byte_vl;
const uint32_t* row0_next = row0 + 4;
const uint32_t* row1_next = row1 + 4;
float total;
asm volatile(
"vsetvli %[vl], zero, e32, m2, ta, ma \n"
"vmv.v.i v0, 0 \n"
"vmv.s.x v4, zero \n"
"1: \n"
"vsetvli %[vl], %[w], e32, m2, tu, ma \n"
"vlseg4e32.v v8, (%[row0]) \n"
"vlseg4e32.v v16, (%[row0_next]) \n"
"vadd.vv v8, v8, v16 \n"
"vadd.vv v10, v10, v18 \n"
"vadd.vv v12, v12, v20 \n"
"vadd.vv v14, v14, v22 \n"
"vlseg4e32.v v16, (%[row1]) \n"
"vlseg4e32.v v24, (%[row1_next]) \n"
"vadd.vv v16, v16, v24 \n"
"vadd.vv v18, v18, v26 \n"
"vadd.vv v20, v20, v28 \n"
"vadd.vv v22, v22, v30 \n"
"vadd.vv v8, v8, v16 \n"
"vadd.vv v10, v10, v18 \n"
"vadd.vv v12, v12, v20 \n"
"vadd.vv v14, v14, v22 \n"
"vmul.vv v16, v8, v10 \n"
"vsll.vi v16, v16, 1 \n"
"vmul.vv v18, v8, v8 \n"
"vmacc.vv v18, v10, v10 \n"
"vsll.vi v14, v14, 7 \n"
"vsub.vv v14, v14, v16 \n"
"vadd.vx v16, v16, %[c1] \n"
"vadd.vx v14, v14, %[c2] \n"
"vsll.vi v12, v12, 6 \n"
"vsub.vv v12, v12, v18 \n"
"vadd.vx v18, v18, %[c1] \n"
"vadd.vx v12, v12, %[c2] \n"
"vfcvt.f.x.v v16, v16 \n"
"vfcvt.f.x.v v14, v14 \n"
"vfcvt.f.x.v v18, v18 \n"
"vfcvt.f.x.v v12, v12 \n"
"vfmul.vv v16, v16, v14 \n"
"vfmul.vv v18, v18, v12 \n"
"vfdiv.vv v8, v16, v18 \n"
"vfadd.vv v0, v0, v8 \n"
"sub %[w], %[w], %[vl] \n"
"slli %[byte_vl], %[vl], 4 \n"
"add %[row0], %[row0], %[byte_vl] \n"
"add %[row0_next], %[row0_next], %[byte_vl]\n"
"add %[row1], %[row1], %[byte_vl] \n"
"add %[row1_next], %[row1_next], %[byte_vl]\n"
"bgtz %[w], 1b \n"
"vsetvli %[vl], zero, e32, m2, ta, ma \n"
"vfredusum.vs v4, v0, v4 \n"
"vfmv.f.s %[total], v4 \n"
: [row0] "+r"(row0), // %[row0]
[row0_next] "+r"(row0_next), // %[row0_next]
[row1] "+r"(row1), // %[row1]
[row1_next] "+r"(row1_next), // %[row1_next]
[w] "+r"(num_windows), // %[w]
[vl] "=&r"(vl), // %[vl]
[byte_vl] "=&r"(byte_vl), // %[byte_vl]
[total] "=f"(total) // %[total]
: [c1] "r"(26634), // %[c1]
[c2] "r"(239708) // %[c2]
: RVV_VL_CLOBBER "vtype", "memory", "v0", "v1", "v4", "v8", "v9", "v10",
"v11", "v12", "v13", "v14", "v15", "v16", "v17", "v18", "v19", "v20",
"v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30",
"v31");
return total;
}
#endif // HAS_SSIMWINDOWROW_RVV
#ifdef __cplusplus
} // extern "C"
} // namespace libyuv
#endif
#endif // !defined(LIBYUV_DISABLE_RVV) && defined(__riscv_vector)
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