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 2B5A349AE3 for ; Sat, 1 Jun 2024 19:56:30 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 0E93068D656; Sat, 1 Jun 2024 22:56:22 +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 96F2B68D638 for ; Sat, 1 Jun 2024 22:56:14 +0300 (EEST) Received: from basile.remlab.net (localhost [IPv6:::1]) by ursule.remlab.net (Postfix) with ESMTP id 5B4AEC013E for ; Sat, 1 Jun 2024 22:56:13 +0300 (EEST) From: =?UTF-8?q?R=C3=A9mi=20Denis-Courmont?= To: ffmpeg-devel@ffmpeg.org Date: Sat, 1 Jun 2024 22:56:12 +0300 Message-ID: <20240601195613.44669-1-remi@remlab.net> X-Mailer: git-send-email 2.45.1 MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 1/2] lavc/vp8dsp: add R-V V vp7_idct_dc_add 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 just computes the direct coefficient and hands over to code shared with VP8. Accordingly the bulk of changes are just rewriting the VP8 code to share. Nothing to write home about: vp7_idct_dc_add_c: 1.7 vp7_idct_dc_add_rvv_i32: 1.2 --- libavcodec/riscv/vp7dsp_init.c | 12 +++++++++++- libavcodec/riscv/vp8dsp_rvv.S | 30 +++++++++++++++++++++++------- 2 files changed, 34 insertions(+), 8 deletions(-) diff --git a/libavcodec/riscv/vp7dsp_init.c b/libavcodec/riscv/vp7dsp_init.c index ae7f2d4277..491874483f 100644 --- a/libavcodec/riscv/vp7dsp_init.c +++ b/libavcodec/riscv/vp7dsp_init.c @@ -27,6 +27,15 @@ void ff_vp7_luma_dc_wht_rvv(int16_t block[4][4][16], int16_t dc[16]); void ff_vp7_idct_add_rvv(uint8_t *dst, int16_t block[16], ptrdiff_t stride); +void ff_vp78_idct_dc_add_rvv(uint8_t *, int16_t block[16], ptrdiff_t, int dc); + +static void ff_vp7_idct_dc_add_rvv(uint8_t *dst, int16_t block[16], + ptrdiff_t stride) +{ + int dc = (23170 * (23170 * block[0] >> 14) + 0x20000) >> 18; + + ff_vp78_idct_dc_add_rvv(dst, block, stride, dc); +} av_cold void ff_vp7dsp_init_riscv(VP8DSPContext *c) { @@ -37,8 +46,9 @@ av_cold void ff_vp7dsp_init_riscv(VP8DSPContext *c) ff_rv_vlen_least(128)) { #if __riscv_xlen >= 64 c->vp8_luma_dc_wht = ff_vp7_luma_dc_wht_rvv; -#endif c->vp8_idct_add = ff_vp7_idct_add_rvv; +#endif + c->vp8_idct_dc_add = ff_vp7_idct_dc_add_rvv; } #endif } diff --git a/libavcodec/riscv/vp8dsp_rvv.S b/libavcodec/riscv/vp8dsp_rvv.S index b187c6c7c9..02351be383 100644 --- a/libavcodec/riscv/vp8dsp_rvv.S +++ b/libavcodec/riscv/vp8dsp_rvv.S @@ -100,6 +100,29 @@ func ff_vp8_luma_dc_wht_rvv, zve64x endfunc #endif +func ff_vp8_idct_dc_add_rvv, zve32x + lh a3, (a1) + addi a3, a3, 4 + srai a3, a3, 3 + # fall through +endfunc + +func ff_vp78_idct_dc_add_rvv, zve32x + csrwi vxrm, 0 + vsetivli zero, 4, e8, mf4, ta, ma + sh zero, (a1) + vlse32.v v8, (a0), a2 + vsetivli zero, 16, e16, m2, ta, ma + vzext.vf2 v16, v8 + vadd.vx v16, v16, a3 + vmax.vx v16, v16, zero + vsetvli zero, zero, e8, m1, ta, ma + vnclipu.wi v8, v16, 0 + vsetivli zero, 4, e8, mf4, ta, ma + vsse32.v v8, (a0), a2 + ret +endfunc + .macro vp8_idct_dc_add vlse32.v v0, (a0), a2 lh a5, 0(a1) @@ -122,13 +145,6 @@ endfunc addi a1, a1, 32 .endm -func ff_vp8_idct_dc_add_rvv, zve32x - vsetivli zero, 4, e8, mf4, ta, ma - vp8_idct_dc_add - - ret -endfunc - func ff_vp8_idct_dc_add4y_rvv, zve32x vsetivli zero, 4, e8, mf4, ta, ma .rept 3 -- 2.45.1 _______________________________________________ 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".