From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTP id 3759E445AA for ; Tue, 18 Jul 2023 18:53:13 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 656E968C518; Tue, 18 Jul 2023 21:53:01 +0300 (EEST) Received: from ursule.remlab.net (vps-a2bccee9.vps.ovh.net [51.75.19.47]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 9E2BD68C2EC for ; Tue, 18 Jul 2023 21:52:54 +0300 (EEST) Received: from basile.remlab.net (localhost [IPv6:::1]) by ursule.remlab.net (Postfix) with ESMTP id 4CF83C0219 for ; Tue, 18 Jul 2023 21:52:54 +0300 (EEST) From: =?UTF-8?q?R=C3=A9mi=20Denis-Courmont?= To: ffmpeg-devel@ffmpeg.org Date: Tue, 18 Jul 2023 21:52:53 +0300 Message-Id: <20230718185253.18927-3-remi@remlab.net> X-Mailer: git-send-email 2.40.1 MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 3/3] swscale/rgb2rgb2: rework RISC-V V shuffle_bytes_{1230, 3012} X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: This avoids strided loads. Before: shuffle_bytes_1230_rvv_i32: 308.7 shuffle_bytes_3012_rvv_i32: 308.7 After: shuffle_bytes_1230_rvv_i32: 46.7 shuffle_bytes_3012_rvv_i32: 46.7 --- libswscale/riscv/rgb2rgb_rvv.S | 30 ++++++++++++++++++++---------- 1 file changed, 20 insertions(+), 10 deletions(-) diff --git a/libswscale/riscv/rgb2rgb_rvv.S b/libswscale/riscv/rgb2rgb_rvv.S index 366f80c1c3..0ac3afff7c 100644 --- a/libswscale/riscv/rgb2rgb_rvv.S +++ b/libswscale/riscv/rgb2rgb_rvv.S @@ -49,19 +49,29 @@ func ff_shuffle_bytes_2103_rvv, zve32x endfunc func ff_shuffle_bytes_1230_rvv, zve32x - addi t1, a0, 2 - addi t2, a0, 3 - addi t3, a0, 0 - addi a0, a0, 1 - j 1b + li t1, 24 + li t2, 8 + j 3f endfunc func ff_shuffle_bytes_3012_rvv, zve32x - addi t1, a0, 0 - addi t2, a0, 1 - addi t3, a0, 2 - addi a0, a0, 3 - j 1b + li t1, 8 + li t2, 24 +3: + srai a2, a2, 2 +4: + vsetvli t0, a2, e32, m8, ta, ma + vle32.v v8, (a0) + sub a2, a2, t0 + vsll.vx v16, v8, t1 + sh2add a0, t0, a0 + vsrl.vx v8, v8, t2 + vor.vv v16, v16, v8 + vse32.v v16, (a1) + sh2add a1, t0, a1 + bnez a2, 4b + + ret endfunc func ff_shuffle_bytes_3210_rvv, zve32x -- 2.40.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".