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| author | Rémi Denis-Courmont <remi@remlab.net> | 2023-09-29 22:36:16 +0300 |
|---|---|---|
| committer | Rémi Denis-Courmont <remi@remlab.net> | 2023-10-03 20:48:39 +0300 |
| commit | be37a2e3644fc3db4c297b347fba687c3ff9cca1 (patch) | |
| tree | 7d60f56f355dc1cd60aeae6fd49bee368f3ca08b /libswscale | |
| parent | e1f3041b93cc8a382fd16d7a062edd154bdec2ea (diff) | |
| download | ffmpeg-be37a2e3644fc3db4c297b347fba687c3ff9cca1.tar.gz | |
swscale/rgb2rgb: rework RISC-V V uyvytoyuv422
This avoids using relatively slow register strides.
Diffstat (limited to 'libswscale')
| -rw-r--r-- | libswscale/riscv/rgb2rgb_rvv.S | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/libswscale/riscv/rgb2rgb_rvv.S b/libswscale/riscv/rgb2rgb_rvv.S index 008f098bfe..3e7988ca01 100644 --- a/libswscale/riscv/rgb2rgb_rvv.S +++ b/libswscale/riscv/rgb2rgb_rvv.S @@ -101,34 +101,33 @@ func ff_interleave_bytes_rvv, zve32x endfunc #if (__riscv_xlen == 64) -.macro yuy2_to_i422p v_y0, v_y1, v_u, v_v +.macro yuy2_to_i422p y_shift addi sp, sp, -16 sd s0, (sp) - sd s1, 8(sp) addi a4, a4, 1 lw s0, 16(sp) srai a4, a4, 1 // pixel width -> chroma width - li s1, 2 1: mv t4, a4 mv t3, a3 mv t0, a0 - addi t6, a0, 1 mv t1, a1 mv t2, a2 addi a5, a5, -1 2: vsetvli t5, t4, e8, m1, ta, ma + vlseg2e16.v v16, (t3) sub t4, t4, t5 - vlseg4e8.v v8, (t3) + vnsrl.wi v24, v16, \y_shift // Y0 sh2add t3, t5, t3 - vsse8.v \v_y0, (t0), s1 + vnsrl.wi v25, v18, \y_shift // Y1 + vnsrl.wi v28, v16, 8 - \y_shift // U + vnsrl.wi v30, v18, 8 - \y_shift // V + vsseg2e8.v v24, (t0) sh1add t0, t5, t0 - vsse8.v \v_y1, (t6), s1 - sh1add t6, t5, t6 - vse8.v \v_u, (t1) + vse8.v v28, (t1) add t1, t5, t1 - vse8.v \v_v, (t2) + vse8.v v30, (t2) add t2, t5, t2 bnez t4, 2b @@ -138,17 +137,16 @@ endfunc add a2, a2, a7 bnez a5, 1b - ld s1, 8(sp) ld s0, (sp) addi sp, sp, 16 ret .endm func ff_uyvytoyuv422_rvv, zve32x - yuy2_to_i422p v9, v11, v8, v10 + yuy2_to_i422p 8 endfunc func ff_yuyvtoyuv422_rvv, zve32x - yuy2_to_i422p v8, v10, v9, v11 + yuy2_to_i422p 0 endfunc #endif |