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Code Issues Releases Activity

rv40: NEON optimised weak loop filter

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Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-12-09 21:21:26 +00:00
parent 65a25adc97
commit 11b1db2759
2 changed files with 119 additions and 0 deletions
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9
libavcodec/arm/rv40dsp_init_neon.c
View File

@ -61,6 +61,13 @@ int ff_rv40_v_loop_filter_strength_neon(uint8_t *src, int stride,
int beta, int beta2, int edge,
int *p1, int *q1);
void ff_rv40_h_weak_loop_filter_neon(uint8_t *src, int stride, int filter_p1,
int filter_q1, int alpha, int beta,
int lim_p0q0, int lim_q1, int lim_p1);
void ff_rv40_v_weak_loop_filter_neon(uint8_t *src, int stride, int filter_p1,
int filter_q1, int alpha, int beta,
int lim_p0q0, int lim_q1, int lim_p1);
void ff_rv40dsp_init_neon(RV34DSPContext *c, DSPContext* dsp)
{
c->put_pixels_tab[0][ 1] = ff_put_rv40_qpel16_mc10_neon;
@ -126,4 +133,6 @@ void ff_rv40dsp_init_neon(RV34DSPContext *c, DSPContext* dsp)
c->rv40_loop_filter_strength[0] = ff_rv40_h_loop_filter_strength_neon;
c->rv40_loop_filter_strength[1] = ff_rv40_v_loop_filter_strength_neon;
c->rv40_weak_loop_filter[0] = ff_rv40_h_weak_loop_filter_neon;
c->rv40_weak_loop_filter[1] = ff_rv40_v_weak_loop_filter_neon;
}

110
libavcodec/arm/rv40dsp_neon.S
View File

@ -808,3 +808,113 @@ function ff_rv40_v_loop_filter_strength_neon, export=1
vmov.u16 r0, d0[0]
bx lr
endfunc
.macro rv40_weak_loop_filter
vdup.16 d30, r2 @ filter_p1
vdup.16 d31, r3 @ filter_q1
ldrd r2, r3, [sp]
vdup.16 d28, r2 @ alpha
vdup.16 d29, r3 @ beta
ldr r12, [sp, #8]
vdup.16 d25, r12 @ lim_p0q0
ldrd r2, r3, [sp, #12]
vsubl.u8 q9, d5, d4 @ x, t
vabdl.u8 q8, d5, d4 @ x, abs(t)
vneg.s16 q15, q15
vceq.i16 d16, d19, #0 @ !t
vshl.s16 d19, d19, #2 @ t << 2
vmul.u16 d18, d17, d28 @ alpha * abs(t)
vand d24, d30, d31 @ filter_p1 & filter_q1
vsubl.u8 q1, d0, d4 @ p1p2, p1p0
vsubl.u8 q3, d1, d5 @ q1q2, q1q0
vmov.i16 d22, #3
vshr.u16 d18, d18, #7
vadd.i16 d22, d22, d24 @ 3 - (filter_p1 & filter_q1)
vsubl.u8 q10, d0, d1 @ src[-2] - src[1]
vcle.u16 d18, d18, d22
vand d20, d20, d24
vneg.s16 d23, d25 @ -lim_p0q0
vadd.s16 d19, d19, d20
vbic d16, d18, d16 @ t && u <= 3 - (fp1 & fq1)
vtrn.32 d4, d5 @ -3, 2, -1, 0
vrshr.s16 d19, d19, #3
vmov d28, d29 @ beta
vswp d3, d6 @ q1q2, p1p0
vmin.s16 d19, d19, d25
vand d30, d30, d16
vand d31, d31, d16
vadd.s16 q10, q1, q3 @ p1p2 + p1p0, q1q2 + q1q0
vmax.s16 d19, d19, d23 @ diff
vabs.s16 q1, q1 @ abs(p1p2), abs(q1q2)
vand d18, d19, d16 @ diff
vcle.u16 q1, q1, q14
vneg.s16 d19, d18 @ -diff
vdup.16 d26, r3 @ lim_p1
vaddw.u8 q2, q9, d5 @ src[-1]+diff, src[0]-diff
vhsub.s16 q11, q10, q9
vand q1, q1, q15
vqmovun.s16 d4, q2 @ -1, 0
vand q9, q11, q1
vdup.16 d27, r2 @ lim_q1
vneg.s16 q9, q9
vneg.s16 q14, q13
vmin.s16 q9, q9, q13
vtrn.32 d0, d1 @ -2, 1, -2, 1
vmax.s16 q9, q9, q14
vaddw.u8 q3, q9, d0
vqmovun.s16 d5, q3 @ -2, 1
.endm
function ff_rv40_h_weak_loop_filter_neon, export=1
sub r0, r0, r1, lsl #1
sub r0, r0, r1
vld1.32 {d4[]}, [r0,:32], r1
vld1.32 {d0[]}, [r0,:32], r1
vld1.32 {d4[1]}, [r0,:32], r1
vld1.32 {d5[]}, [r0,:32], r1
vld1.32 {d1[]}, [r0,:32], r1
vld1.32 {d5[0]}, [r0,:32]
sub r0, r0, r1, lsl #2
rv40_weak_loop_filter
vst1.32 {d5[0]}, [r0,:32], r1
vst1.32 {d4[0]}, [r0,:32], r1
vst1.32 {d4[1]}, [r0,:32], r1
vst1.32 {d5[1]}, [r0,:32], r1
bx lr
endfunc
function ff_rv40_v_weak_loop_filter_neon, export=1
sub r12, r0, #3
sub r0, r0, #2
vld1.8 {d4}, [r12], r1
vld1.8 {d5}, [r12], r1
vld1.8 {d2}, [r12], r1
vld1.8 {d3}, [r12], r1
vtrn.16 q2, q1
vtrn.8 d4, d5
vtrn.8 d2, d3
vrev64.32 d5, d5
vtrn.32 q2, q1
vdup.32 d0, d3[0]
vdup.32 d1, d2[0]
rv40_weak_loop_filter
vtrn.32 q2, q3
vswp d4, d5
vst4.8 {d4[0],d5[0],d6[0],d7[0]}, [r0], r1
vst4.8 {d4[1],d5[1],d6[1],d7[1]}, [r0], r1
vst4.8 {d4[2],d5[2],d6[2],d7[2]}, [r0], r1
vst4.8 {d4[3],d5[3],d6[3],d7[3]}, [r0], r1
bx lr
endfunc