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lavc/h264dsp: R-V V idct4_add8 (all depths)

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These are really just wrappers for idct4_add16intra functions, which are in
turn mostly wrappers for idct4_add and idct4_dc_add functions.

For benchmarks refer to the later two sets.
release/7.1
Rémi Denis-Courmont 7 months ago
parent eb3cc508d8
commit 4edfc11a28
2 changed files with 107 additions and 14 deletions
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  1. 24
      libavcodec/riscv/h264dsp_init.c
  2. 97
      libavcodec/riscv/h264idct_rvv.S

24
libavcodec/riscv/h264dsp_init.c
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@ -54,7 +54,13 @@ void ff_h264_idct_add16intra_##depth##_rvv(uint8_t *d, const int *soffset, \
const uint8_t nnzc[5 * 8]); \
void ff_h264_idct8_add4_##depth##_rvv(uint8_t *d, const int *soffset, \
int16_t *s, int stride, \
const uint8_t nnzc[5 * 8]);
const uint8_t nnzc[5 * 8]); \
void ff_h264_idct4_add8_##depth##_rvv(uint8_t **d, const int *soffset, \
int16_t *s, int stride, \
const uint8_t nnzc[5 * 8]); \
void ff_h264_idct4_add8_422_##depth##_rvv(uint8_t **d, const int *soffset, \
int16_t *s, int stride, \
const uint8_t nnzc[5 * 8]);
IDCT_DEPTH(8)
IDCT_DEPTH(9)
@ -104,6 +110,10 @@ av_cold void ff_h264dsp_init_riscv(H264DSPContext *dsp, const int bit_depth,
dsp->h264_idct_add16intra = ff_h264_idct_add16intra_8_rvv;
# if __riscv_xlen == 64
dsp->h264_idct8_add4 = ff_h264_idct8_add4_8_rvv;
if (chroma_format_idc <= 1)
dsp->h264_idct_add8 = ff_h264_idct4_add8_8_rvv;
else
dsp->h264_idct_add8 = ff_h264_idct4_add8_422_8_rvv;
# endif
}
if (flags & AV_CPU_FLAG_RVV_I64) {
@ -123,10 +133,16 @@ av_cold void ff_h264dsp_init_riscv(H264DSPContext *dsp, const int bit_depth,
if (zvl128b && (flags & AV_CPU_FLAG_RVB)) { \
dsp->h264_idct_dc_add = ff_h264_idct4_dc_add_##depth##_rvv; \
dsp->h264_idct8_dc_add = ff_h264_idct8_dc_add_##depth##_rvv; \
dsp->h264_idct_add16 = ff_h264_idct_add16_##depth##_rvv; \
dsp->h264_idct_add16intra = \
ff_h264_idct_add16intra_##depth##_rvv; \
if (__riscv_xlen == 64) { \
dsp->h264_idct_add16 = ff_h264_idct_add16_##depth##_rvv; \
dsp->h264_idct_add16intra = \
ff_h264_idct_add16intra_##depth##_rvv; \
if (chroma_format_idc <= 1) \
dsp->h264_idct_add8 = \
ff_h264_idct4_add8_##depth##_rvv; \
else \
dsp->h264_idct_add8 = \
ff_h264_idct4_add8_422_##depth##_rvv; \
} \
} \
if (__riscv_xlen == 64 && (flags & AV_CPU_FLAG_RVB)) \

97
libavcodec/riscv/h264idct_rvv.S
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@ -57,7 +57,7 @@ endfunc
func ff_h264_idct_add_8_rvv, zve32x
lpad 0
csrwi vxrm, 0
.Lidct_add4_8_rvv:
.Lidct4_add_8_rvv:
vsetivli zero, 4, e16, mf2, ta, ma
addi t1, a1, 1 * 4 * 2
vle16.v v0, (a1)
@ -111,7 +111,7 @@ endfunc
func ff_h264_idct_add_16_rvv, zve32x
csrwi vxrm, 0
.Lidct_add4_16_rvv:
.Lidct4_add_16_rvv:
vsetivli zero, 4, e32, m1, ta, ma
addi t1, a1, 1 * 4 * 4
vle32.v v0, (a1)
@ -543,19 +543,26 @@ endfunc
.endr
const ff_h264_scan8
.byte 014, 015, 024, 025, 016, 017, 026, 027
.byte 034, 035, 044, 045, 036, 037, 046, 047
.byte 014, 015, 024, 025, 016, 017, 026, 027
.byte 034, 035, 044, 045, 036, 037, 046, 047
.byte 064, 065, 074, 075, 066, 067, 076, 077
.byte 0104, 0105, 0114, 0115, 0106, 0107, 0116, 0117
.byte 0134, 0135, 0144, 0145, 0136, 0137, 0146, 0147
.byte 0154, 0155, 0164, 0165, 0156, 0157, 0166, 0167
endconst
.macro idct4_adds type, depth
.macro idct4_add16 type, depth
func ff_h264_idct_add\type\()_\depth\()_rvv, zve32x, b
.if \depth == 8
lpad 0
.endif
csrwi vxrm, 0
lla t0, ff_h264_scan8
li t1, 32 * (\depth / 8)
vsetivli zero, 16, e8, m1, ta, ma
.ifc \type, 16intra
.Lidct4_add4_\depth\()_rvv:
.endif
li t1, 32 * (\depth / 8)
vle8.v v8, (t0)
.if \depth == 8
vlse16.v v16, (a2), t1
@ -587,7 +594,7 @@ func ff_h264_idct_add\type\()_\depth\()_rvv, zve32x, b
mv t5, a1
mv a1, a2
mv a2, a3
li a3, 16
csrr a3, vl
mv a7, ra
1:
andi t0, a4, 1
@ -603,7 +610,7 @@ func ff_h264_idct_add\type\()_\depth\()_rvv, zve32x, b
.else
beqz t0, 2f # if (nnzc[scan8[i]])
.endif
jal .Lidct_add4_\depth\()_rvv
jal .Lidct4_add_\depth\()_rvv
j 3f
2:
.ifnc \type, 16
@ -621,9 +628,67 @@ func ff_h264_idct_add\type\()_\depth\()_rvv, zve32x, b
endfunc
.endm
.macro idct4_add8 type, depth
func ff_h264_idct4_add\type\()_\depth\()_rvv, zve32x
.if \depth == 8
lpad 0
.endif
csrwi vxrm, 0
addi sp, sp, -32
addi a2, a2, 16 * 16 * 2 * (\depth / 8) # &block[16 * 16]
lla t0, ff_h264_scan8 + 16
sd s0, 0(sp)
sd ra, 8(sp)
mv s0, sp
sd a0, 16(sp)
sd a4, 24(sp)
ld a0, 0(a0) # dest[0]
addi a1, a1, 16 * 4 # &block_offset[16]
vsetivli zero, 4, e8, mf4, ta, ma
jal .Lidct4_add4_\depth\()_rvv
ld a4, 24(sp) # nnzc
ld a0, 16(sp)
mv a3, a2 # stride
addi a2, a1, (16 - 4) * 16 * 2 * (\depth / 8) # &block[32 * 16]
addi a1, t5, (16 - 4) * 4 # &block_offset[32]
ld a0, 8(a0) # dest[1]
lla t0, ff_h264_scan8 + 32
.ifc \type, 8_422
vsetivli zero, 4, e8, mf4, ta, ma
jal .Lidct4_add4_\depth\()_rvv
ld a4, 24(sp) # nnzc
ld a0, 16(sp)
mv a3, a2 # stride
addi a2, a1, (-12- 4) * 16 * 2 * (\depth / 8) # &block[20 * 16]
addi a1, t5, (-8 - 4) * 4 # &block_offset[24]
ld a0, 0(a0) # dest[0]
lla t0, ff_h264_scan8 + 24
vsetivli zero, 4, e8, mf4, ta, ma
jal .Lidct4_add4_\depth\()_rvv
ld a4, 24(sp) # nnzc
ld a0, 16(sp)
mv a3, a2 # stride
addi a2, a1, (16 - 4) * 16 * 2 * (\depth / 8) # &block[36 * 16]
addi a1, t5, (16 - 4) * 4 # &block_offset[40]
ld a0, 8(a0) # dest[1]
lla t0, ff_h264_scan8 + 40
.endif
ld ra, 8(sp)
ld s0, 0(sp)
addi sp, sp, 32
vsetivli zero, 4, e8, mf4, ta, ma
j .Lidct4_add4_\depth\()_rvv
endfunc
.endm
.irp depth, 8, 16
idct4_adds 16, \depth
idct4_adds 16intra, \depth
idct4_add16 16, \depth
idct4_add16 16intra, \depth
idct4_add8 8, \depth
idct4_add8 8_422, \depth
#if (__riscv_xlen == 64)
func ff_h264_idct8_add4_\depth\()_rvv, zve32x, b
@ -724,5 +789,17 @@ func ff_h264_idct8_add4_\depth\()_rvv, zve32x
li a5, (1 << \depth) - 1
j ff_h264_idct8_add4_16_rvv
endfunc
func ff_h264_idct4_add8_\depth\()_rvv, zve32x
lpad 0
li a5, (1 << \depth) - 1
j ff_h264_idct4_add8_16_rvv
endfunc
func ff_h264_idct4_add8_422_\depth\()_rvv, zve32x
lpad 0
li a5, (1 << \depth) - 1
j ff_h264_idct4_add8_422_16_rvv
endfunc
#endif
.endr

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