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libyuv/source/row_rvv.cc
Darren Hsieh 1b3c4c12d4 Add Split/Merge RGB/ARGB/XRGB Row_RVV 
* Run on SiFive internal FPGA:

SplitRGBPlane_Opt (~6.87x vs scalar)

SplitARGBPlane_Opt (~10.77x vs scalar)

SplitXRGBPlane_Opt (~18.69x vs scalar)

MergeRGBPlane_Opt (~3.63x vs scalar)

MergeARGBPlane_Opt (~3.50x vs scalar)

MergeXRGBPlane_Opt (~2.90x vs scalar)

LIBYUV_WIDTH=1280 LIBYUV_HEIGHT=720 LIBYUV_REPEAT=10

- include a fix to avoid implict conversion warning between size_t & int.

Bug: libyuv:956

Change-Id: Icd79b282b04ea3981e7fd4e6d547da6708d82516
Signed-off-by: Darren Hsieh <darren.hsieh@sifive.com>
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/4443411
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2023-04-28 18:34:46 +00:00

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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 <assert.h>
#include "libyuv/row.h"
#if !defined(LIBYUV_DISABLE_RVV) && defined(__riscv)
#include <riscv_vector.h>
#ifdef __cplusplus
namespace libyuv {
extern "C" {
#endif
void ARGBToAR64Row_RVV(const uint8_t* src_argb, uint16_t* dst_ar64, int width) {
size_t avl = (size_t)4 * width;
do {
vuint16m8_t v_ar64;
vuint8m4_t v_argb;
size_t vl = __riscv_vsetvl_e8m4(avl);
v_argb = __riscv_vle8_v_u8m4(src_argb, vl);
v_ar64 = __riscv_vwaddu_vx_u16m8(v_argb, 0, vl);
v_ar64 = __riscv_vmul_vx_u16m8(v_ar64, 0x0101, vl);
__riscv_vse16_v_u16m8(dst_ar64, v_ar64, vl);
avl -= vl;
src_argb += vl;
dst_ar64 += vl;
} while (avl > 0);
}
void ARGBToAB64Row_RVV(const uint8_t* src_argb, uint16_t* dst_ab64, int width) {
size_t avl = (size_t)width;
do {
vuint16m2_t v_b_16, v_g_16, v_r_16, v_a_16;
vuint8m1_t v_b, v_g, v_r, v_a;
size_t vl = __riscv_vsetvl_e8m1(avl);
__riscv_vlseg4e8_v_u8m1(&v_b, &v_g, &v_r, &v_a, src_argb, vl);
v_b_16 = __riscv_vwaddu_vx_u16m2(v_b, 0, vl);
v_g_16 = __riscv_vwaddu_vx_u16m2(v_g, 0, vl);
v_r_16 = __riscv_vwaddu_vx_u16m2(v_r, 0, vl);
v_a_16 = __riscv_vwaddu_vx_u16m2(v_a, 0, vl);
v_b_16 = __riscv_vmul_vx_u16m2(v_b_16, 0x0101, vl);
v_g_16 = __riscv_vmul_vx_u16m2(v_g_16, 0x0101, vl);
v_r_16 = __riscv_vmul_vx_u16m2(v_r_16, 0x0101, vl);
v_a_16 = __riscv_vmul_vx_u16m2(v_a_16, 0x0101, vl);
__riscv_vsseg4e16_v_u16m2(dst_ab64, v_r_16, v_g_16, v_b_16, v_a_16, vl);
avl -= vl;
src_argb += 4 * vl;
dst_ab64 += 4 * vl;
} while (avl > 0);
}
void AR64ToARGBRow_RVV(const uint16_t* src_ar64, uint8_t* dst_argb, int width) {
size_t avl = (size_t)4 * width;
do {
vuint16m8_t v_ar64;
vuint8m4_t v_argb;
size_t vl = __riscv_vsetvl_e16m8(avl);
v_ar64 = __riscv_vle16_v_u16m8(src_ar64, vl);
v_argb = __riscv_vnsrl_wx_u8m4(v_ar64, 8, vl);
__riscv_vse8_v_u8m4(dst_argb, v_argb, vl);
avl -= vl;
src_ar64 += vl;
dst_argb += vl;
} while (avl > 0);
}
void AB64ToARGBRow_RVV(const uint16_t* src_ab64, uint8_t* dst_argb, int width) {
size_t avl = (size_t)width;
do {
vuint16m2_t v_b_16, v_g_16, v_r_16, v_a_16;
vuint8m1_t v_b, v_g, v_r, v_a;
size_t vl = __riscv_vsetvl_e16m2(avl);
__riscv_vlseg4e16_v_u16m2(&v_r_16, &v_g_16, &v_b_16, &v_a_16, src_ab64, vl);
v_b = __riscv_vnsrl_wx_u8m1(v_b_16, 8, vl);
v_g = __riscv_vnsrl_wx_u8m1(v_g_16, 8, vl);
v_r = __riscv_vnsrl_wx_u8m1(v_r_16, 8, vl);
v_a = __riscv_vnsrl_wx_u8m1(v_a_16, 8, vl);
__riscv_vsseg4e8_v_u8m1(dst_argb, v_b, v_g, v_r, v_a, vl);
avl -= vl;
src_ab64 += 4 * vl;
dst_argb += 4 * vl;
} while (avl > 0);
}
void RAWToARGBRow_RVV(const uint8_t* src_raw, uint8_t* dst_argb, int width) {
size_t w = (size_t)width;
size_t vl = __riscv_vsetvl_e8m2(w);
vuint8m2_t v_a = __riscv_vmv_v_x_u8m2(255u, vl);
do {
vuint8m2_t v_b, v_g, v_r;
__riscv_vlseg3e8_v_u8m2(&v_r, &v_g, &v_b, src_raw, vl);
__riscv_vsseg4e8_v_u8m2(dst_argb, v_b, v_g, v_r, v_a, vl);
w -= vl;
src_raw += vl * 3;
dst_argb += vl * 4;
vl = __riscv_vsetvl_e8m2(w);
} while (w > 0);
}
void RAWToRGBARow_RVV(const uint8_t* src_raw, uint8_t* dst_rgba, int width) {
size_t w = (size_t)width;
size_t vl = __riscv_vsetvl_e8m2(w);
vuint8m2_t v_a = __riscv_vmv_v_x_u8m2(255u, vl);
do {
vuint8m2_t v_b, v_g, v_r;
__riscv_vlseg3e8_v_u8m2(&v_r, &v_g, &v_b, src_raw, vl);
__riscv_vsseg4e8_v_u8m2(dst_rgba, v_a, v_b, v_g, v_r, vl);
w -= vl;
src_raw += vl * 3;
dst_rgba += vl * 4;
vl = __riscv_vsetvl_e8m2(w);
} while (w > 0);
}
void RAWToRGB24Row_RVV(const uint8_t* src_raw, uint8_t* dst_rgb24, int width) {
size_t w = (size_t)width;
do {
vuint8m2_t v_b, v_g, v_r;
size_t vl = __riscv_vsetvl_e8m2(w);
__riscv_vlseg3e8_v_u8m2(&v_b, &v_g, &v_r, src_raw, vl);
__riscv_vsseg3e8_v_u8m2(dst_rgb24, v_r, v_g, v_b, vl);
w -= vl;
src_raw += vl * 3;
dst_rgb24 += vl * 3;
} while (w > 0);
}
void ARGBToRAWRow_RVV(const uint8_t* src_argb, uint8_t* dst_raw, int width) {
size_t w = (size_t)width;
do {
vuint8m2_t v_b, v_g, v_r, v_a;
size_t vl = __riscv_vsetvl_e8m2(w);
__riscv_vlseg4e8_v_u8m2(&v_b, &v_g, &v_r, &v_a, src_argb, vl);
__riscv_vsseg3e8_v_u8m2(dst_raw, v_r, v_g, v_b, vl);
w -= vl;
src_argb += vl * 4;
dst_raw += vl * 3;
} while (w > 0);
}
void ARGBToRGB24Row_RVV(const uint8_t* src_argb,
uint8_t* dst_rgb24,
int width) {
size_t w = (size_t)width;
do {
vuint8m2_t v_b, v_g, v_r, v_a;
size_t vl = __riscv_vsetvl_e8m2(w);
__riscv_vlseg4e8_v_u8m2(&v_b, &v_g, &v_r, &v_a, src_argb, vl);
__riscv_vsseg3e8_v_u8m2(dst_rgb24, v_b, v_g, v_r, vl);
w -= vl;
src_argb += vl * 4;
dst_rgb24 += vl * 3;
} while (w > 0);
}
void RGB24ToARGBRow_RVV(const uint8_t* src_rgb24,
uint8_t* dst_argb,
int width) {
size_t w = (size_t)width;
size_t vl = __riscv_vsetvl_e8m2(w);
vuint8m2_t v_a = __riscv_vmv_v_x_u8m2(255u, vl);
do {
vuint8m2_t v_b, v_g, v_r;
__riscv_vlseg3e8_v_u8m2(&v_b, &v_g, &v_r, src_rgb24, vl);
__riscv_vsseg4e8_v_u8m2(dst_argb, v_b, v_g, v_r, v_a, vl);
w -= vl;
src_rgb24 += vl * 3;
dst_argb += vl * 4;
vl = __riscv_vsetvl_e8m2(w);
} while (w > 0);
}
void SplitRGBRow_RVV(const uint8_t* src_rgb,
uint8_t* dst_r,
uint8_t* dst_g,
uint8_t* dst_b,
int width) {
size_t w = (size_t)width;
do {
vuint8m2_t v_b, v_g, v_r;
size_t vl = __riscv_vsetvl_e8m2(w);
__riscv_vlseg3e8_v_u8m2(&v_r, &v_g, &v_b, src_rgb, vl);
__riscv_vse8_v_u8m2(dst_r, v_r, vl);
__riscv_vse8_v_u8m2(dst_g, v_g, vl);
__riscv_vse8_v_u8m2(dst_b, v_b, vl);
w -= vl;
dst_r += vl;
dst_g += vl;
dst_b += vl;
src_rgb += vl * 3;
} while (w > 0);
}
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 w = (size_t)width;
do {
size_t vl = __riscv_vsetvl_e8m2(w);
vuint8m2_t v_r = __riscv_vle8_v_u8m2(src_r, vl);
vuint8m2_t v_g = __riscv_vle8_v_u8m2(src_g, vl);
vuint8m2_t v_b = __riscv_vle8_v_u8m2(src_b, vl);
__riscv_vsseg3e8_v_u8m2(dst_rgb, v_r, v_g, v_b, vl);
w -= vl;
src_r += vl;
src_g += vl;
src_b += vl;
dst_rgb += vl * 3;
} while (w > 0);
}
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 w = (size_t)width;
do {
vuint8m2_t v_b, v_g, v_r, v_a;
size_t vl = __riscv_vsetvl_e8m2(w);
__riscv_vlseg4e8_v_u8m2(&v_b, &v_g, &v_r, &v_a, src_argb, vl);
__riscv_vse8_v_u8m2(dst_a, v_a, vl);
__riscv_vse8_v_u8m2(dst_r, v_r, vl);
__riscv_vse8_v_u8m2(dst_g, v_g, vl);
__riscv_vse8_v_u8m2(dst_b, v_b, vl);
w -= vl;
dst_a += vl;
dst_r += vl;
dst_g += vl;
dst_b += vl;
src_argb += vl * 4;
} while (w > 0);
}
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 w = (size_t)width;
do {
size_t vl = __riscv_vsetvl_e8m2(w);
vuint8m2_t v_r = __riscv_vle8_v_u8m2(src_r, vl);
vuint8m2_t v_g = __riscv_vle8_v_u8m2(src_g, vl);
vuint8m2_t v_b = __riscv_vle8_v_u8m2(src_b, vl);
vuint8m2_t v_a = __riscv_vle8_v_u8m2(src_a, vl);
__riscv_vsseg4e8_v_u8m2(dst_argb, v_b, v_g, v_r, v_a, vl);
w -= vl;
src_r += vl;
src_g += vl;
src_b += vl;
src_a += vl;
dst_argb += vl * 4;
} while (w > 0);
}
void SplitXRGBRow_RVV(const uint8_t* src_argb,
uint8_t* dst_r,
uint8_t* dst_g,
uint8_t* dst_b,
int width) {
size_t w = (size_t)width;
do {
vuint8m2_t v_b, v_g, v_r, v_a;
size_t vl = __riscv_vsetvl_e8m2(w);
__riscv_vlseg4e8_v_u8m2(&v_b, &v_g, &v_r, &v_a, src_argb, vl);
__riscv_vse8_v_u8m2(dst_r, v_r, vl);
__riscv_vse8_v_u8m2(dst_g, v_g, vl);
__riscv_vse8_v_u8m2(dst_b, v_b, vl);
w -= vl;
dst_r += vl;
dst_g += vl;
dst_b += vl;
src_argb += vl * 4;
} while (w > 0);
}
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 w = (size_t)width;
size_t vl = __riscv_vsetvl_e8m2(w);
vuint8m2_t v_a = __riscv_vmv_v_x_u8m2(255u, vl);
do {
vuint8m2_t v_r, v_g, v_b;
v_r = __riscv_vle8_v_u8m2(src_r, vl);
v_g = __riscv_vle8_v_u8m2(src_g, vl);
v_b = __riscv_vle8_v_u8m2(src_b, vl);
__riscv_vsseg4e8_v_u8m2(dst_argb, v_b, v_g, v_r, v_a, vl);
w -= vl;
src_r += vl;
src_g += vl;
src_b += vl;
dst_argb += vl * 4;
vl = __riscv_vsetvl_e8m2(w);
} while (w > 0);
}
#ifdef __cplusplus
} // extern "C"
} // namespace libyuv
#endif
#endif // !defined(LIBYUV_DISABLE_RVV) && defined(__riscv)
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