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lavc/idctdsp: RISC-V V put_signed_pixels_clamped function

This commit is contained in:
Rémi Denis-Courmont 2022-09-27 23:04:24 +03:00 committed by Lynne
parent fa983b5656
commit 2746329ce2
2 changed files with 24 additions and 0 deletions
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3
libavcodec/riscv/idctdsp_init.c
View File

@ -28,6 +28,8 @@
void ff_put_pixels_clamped_rvv(const int16_t *block, uint8_t *pixels,
ptrdiff_t stride);
void ff_put_signed_pixels_clamped_rvv(const int16_t *block, uint8_t *pixels,
ptrdiff_t stride);
void ff_add_pixels_clamped_rvv(const int16_t *block, uint8_t *pixels,
ptrdiff_t stride);
@ -39,6 +41,7 @@ av_cold void ff_idctdsp_init_riscv(IDCTDSPContext *c, AVCodecContext *avctx,
if ((flags & AV_CPU_FLAG_RVV_I32) && ff_get_rv_vlenb() >= 16) {
c->put_pixels_clamped = ff_put_pixels_clamped_rvv;
c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_rvv;
c->add_pixels_clamped = ff_add_pixels_clamped_rvv;
}
#endif

21
libavcodec/riscv/idctdsp_rvv.S
View File

@ -43,6 +43,27 @@ func ff_put_pixels_clamped_rvv, zve32x
ret
endfunc
func ff_put_signed_pixels_clamped_rvv, zve32x
vsetivli zero, 8, e16, m1, ta, ma
vlseg8e16.v v24, (a0)
li t1, 128
vsetivli zero, 8, e8, mf2, ta, ma
vnclip.wi v16, v24, 0
vnclip.wi v17, v25, 0
vnclip.wi v18, v26, 0
vnclip.wi v19, v27, 0
vnclip.wi v20, v28, 0
vnclip.wi v21, v29, 0
vnclip.wi v22, v30, 0
vnclip.wi v23, v31, 0
vsetvli t0, zero, e8, m8, ta, ma
vadd.vx v16, v16, t1
vsetivli zero, 8, e8, mf2, ta, ma
vssseg8e8.v v16, (a1), a2
ret
endfunc
func ff_add_pixels_clamped_rvv, zve32x
vsetivli zero, 8, e8, mf2, ta, ma
vlseg8e16.v v24, (a0)