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https://chromium.googlesource.com/libyuv/libyuv
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e8af6cb2e4
* Run on SiFive internal FPGA: RAWToARGB_Opt (~2x vs scalar) RAWToRGBA_Opt (~2x vs scalar) RAWToRGB24_Opt (~1.5x vs scalar) LIBYUV_WIDTH=1280 LIBYUV_HEIGHT=720 LIBYUV_REPEAT=10 Change-Id: I21a13d646589ea2aa3822cb9225f5191068c285b Signed-off-by: Darren Hsieh <darren.hsieh@sifive.com> Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/4408357 Reviewed-by: Frank Barchard <fbarchard@chromium.org> Commit-Queue: Frank Barchard <fbarchard@chromium.org>
76 lines
2.1 KiB
C++
76 lines
2.1 KiB
C++
/*
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* Copyright 2023 The LibYuv Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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/*
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* Copyright (c) 2023 SiFive, Inc. All rights reserved.
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*
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* Contributed by Darren Hsieh <darren.hsieh@sifive.com>
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*
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*/
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#include <assert.h>
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#include "libyuv/row.h"
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#if !defined(LIBYUV_DISABLE_RVV) && defined(__riscv)
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#include <riscv_vector.h>
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#ifdef __cplusplus
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namespace libyuv {
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extern "C" {
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#endif
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void RAWToARGBRow_RVV(const uint8_t* src_raw, uint8_t* dst_argb, int width) {
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size_t vl = __riscv_vsetvl_e8m2(width);
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vuint8m2_t v_a = __riscv_vmv_v_x_u8m2(255u, vl);
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while (width > 0) {
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vuint8m2_t v_b, v_g, v_r;
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vl = __riscv_vsetvl_e8m2(width);
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__riscv_vlseg3e8_v_u8m2(&v_r, &v_g, &v_b, src_raw, vl);
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__riscv_vsseg4e8_v_u8m2(dst_argb, v_b, v_g, v_r, v_a, vl);
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width -= vl;
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src_raw += (3 * vl);
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dst_argb += (4 * vl);
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}
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}
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void RAWToRGBARow_RVV(const uint8_t* src_raw, uint8_t* dst_rgba, int width) {
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size_t vl = __riscv_vsetvl_e8m2(width);
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vuint8m2_t v_a = __riscv_vmv_v_x_u8m2(255u, vl);
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while (width > 0) {
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vuint8m2_t v_b, v_g, v_r;
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vl = __riscv_vsetvl_e8m2(width);
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__riscv_vlseg3e8_v_u8m2(&v_r, &v_g, &v_b, src_raw, vl);
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__riscv_vsseg4e8_v_u8m2(dst_rgba, v_a, v_b, v_g, v_r, vl);
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width -= vl;
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src_raw += (3 * vl);
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dst_rgba += (4 * vl);
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}
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}
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void RAWToRGB24Row_RVV(const uint8_t* src_raw, uint8_t* dst_rgb24, int width) {
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while (width > 0) {
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vuint8m2_t v_b, v_g, v_r;
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size_t vl = __riscv_vsetvl_e8m2(width);
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__riscv_vlseg3e8_v_u8m2(&v_b, &v_g, &v_r, src_raw, vl);
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__riscv_vsseg3e8_v_u8m2(dst_rgb24, v_r, v_g, v_b, vl);
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width -= vl;
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src_raw += (3 * vl);
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dst_rgb24 += (3 * vl);
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}
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}
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#ifdef __cplusplus
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} // extern "C"
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} // namespace libyuv
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#endif
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#endif // !defined(LIBYUV_DISABLE_RVV) && defined(__riscv)
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