diff options
| author | Mans Rullgard <mans@mansr.com> | 2011-12-09 21:21:26 +0000 |
|---|---|---|
| committer | Mans Rullgard <mans@mansr.com> | 2011-12-16 14:36:01 +0000 |
| commit | 11b1db27593a1f23a05e033f68b98a4342f1bd91 (patch) | |
| tree | 12a293b4b8343d8bce26e610248a3e50c0cc1246 /libavcodec/arm/rv40dsp_neon.S | |
| parent | 65a25adc97406adaab9ed0c6244fbb69c5cbcc93 (diff) | |
rv40: NEON optimised weak loop filter
Signed-off-by: Mans Rullgard <mans@mansr.com>
Diffstat (limited to 'libavcodec/arm/rv40dsp_neon.S')
| -rw-r--r-- | libavcodec/arm/rv40dsp_neon.S | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/libavcodec/arm/rv40dsp_neon.S b/libavcodec/arm/rv40dsp_neon.S index d9e1b7c959..f68f38234a 100644 --- a/libavcodec/arm/rv40dsp_neon.S +++ b/libavcodec/arm/rv40dsp_neon.S @@ -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 |