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| author | Rémi Denis-Courmont <remi@remlab.net> | 2024-06-01 18:55:44 +0300 |
|---|---|---|
| committer | Rémi Denis-Courmont <remi@remlab.net> | 2024-06-04 17:40:36 +0300 |
| commit | 30797e4ff6c8c537471c386cd019a6a48a721f01 (patch) | |
| tree | c455d300487b5358ed23dcfd1980f7ce1584afb5 | |
| parent | d866f49791c11f730ce3d277b16524220ca74f6d (diff) | |
| download | ffmpeg-30797e4ff6c8c537471c386cd019a6a48a721f01.tar.gz | |
lavc/vp8dsp: add R-V V vp7_idct_dc_add
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
| -rw-r--r-- | libavcodec/riscv/vp7dsp_init.c | 12 | ||||
| -rw-r--r-- | 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 3360a38cac..7a3ab576e9 100644 --- a/libavcodec/riscv/vp8dsp_rvv.S +++ b/libavcodec/riscv/vp8dsp_rvv.S @@ -98,6 +98,29 @@ 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) @@ -120,13 +143,6 @@ 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 |