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swscale/rgb2rgb: remove R-V V shuffle_bytes_3012 

This is slower than the Zbb version on real hardware due to register
strides. Proper support for vector byte-swap requires the Zvbb
extension, but it's much too early for me to worry about it.
This commit is contained in:
Rémi Denis-Courmont 2023-09-29 20:14:26 +03:00
parent c4a144c29d
commit 1a4bd76ea5
2 changed files with 0 additions and 27 deletions
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2
libswscale/riscv/rgb2rgb.c
View File

@ -30,7 +30,6 @@ void ff_shuffle_bytes_2103_rvv(const uint8_t *src, uint8_t *dst, int src_len);
void ff_shuffle_bytes_1230_rvv(const uint8_t *src, uint8_t *dst, int src_len); void ff_shuffle_bytes_1230_rvv(const uint8_t *src, uint8_t *dst, int src_len);
void ff_shuffle_bytes_3012_rvv(const uint8_t *src, uint8_t *dst, int src_len); void ff_shuffle_bytes_3012_rvv(const uint8_t *src, uint8_t *dst, int src_len);
void ff_shuffle_bytes_3210_rvb(const uint8_t *src, uint8_t *dst, int src_len); void ff_shuffle_bytes_3210_rvb(const uint8_t *src, uint8_t *dst, int src_len);
void ff_shuffle_bytes_3210_rvv(const uint8_t *src, uint8_t *dst, int src_len);
void ff_interleave_bytes_rvv(const uint8_t *src1, const uint8_t *src2, void ff_interleave_bytes_rvv(const uint8_t *src1, const uint8_t *src2,
uint8_t *dst, int width, int height, int s1stride, uint8_t *dst, int width, int height, int s1stride,
int s2stride, int dstride); int s2stride, int dstride);
@ -55,7 +54,6 @@ av_cold void rgb2rgb_init_riscv(void)
shuffle_bytes_2103 = ff_shuffle_bytes_2103_rvv; shuffle_bytes_2103 = ff_shuffle_bytes_2103_rvv;
shuffle_bytes_1230 = ff_shuffle_bytes_1230_rvv; shuffle_bytes_1230 = ff_shuffle_bytes_1230_rvv;
shuffle_bytes_3012 = ff_shuffle_bytes_3012_rvv; shuffle_bytes_3012 = ff_shuffle_bytes_3012_rvv;
shuffle_bytes_3210 = ff_shuffle_bytes_3210_rvv;
interleaveBytes = ff_interleave_bytes_rvv; interleaveBytes = ff_interleave_bytes_rvv;
#if (__riscv_xlen == 64) #if (__riscv_xlen == 64)
uyvytoyuv422 = ff_uyvytoyuv422_rvv; uyvytoyuv422 = ff_uyvytoyuv422_rvv;

25
libswscale/riscv/rgb2rgb_rvv.S
View File

@ -74,31 +74,6 @@ func ff_shuffle_bytes_3012_rvv, zve32x
ret ret
endfunc endfunc
func ff_shuffle_bytes_3210_rvv, zve32x
addi t1, a0, 2
addi t2, a0, 1
addi t3, a0, 0
addi a0, a0, 3
srai a2, a2, 2
li t4, 4
1:
vsetvli t0, a2, e8, m1, ta, ma
sub a2, a2, t0
vlse8.v v8, (a0), t4
sh2add a0, t0, a0
vlse8.v v9, (t1), t4
sh2add t1, t0, t1
vlse8.v v10, (t2), t4
sh2add t2, t0, t2
vlse8.v v11, (t3), t4
sh2add t3, t0, t3
vsseg4e8.v v8, (a1)
sh2add a1, t0, a1
bnez a2, 1b
ret
endfunc
func ff_interleave_bytes_rvv, zve32x func ff_interleave_bytes_rvv, zve32x
1: 1:
mv t0, a0 mv t0, a0