diff options
Diffstat (limited to 'third_party/aom/aom_dsp/arm/loopfilter_4_neon_asm.asm')
-rw-r--r-- | third_party/aom/aom_dsp/arm/loopfilter_4_neon_asm.asm | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/third_party/aom/aom_dsp/arm/loopfilter_4_neon_asm.asm b/third_party/aom/aom_dsp/arm/loopfilter_4_neon_asm.asm deleted file mode 100644 index 8b54984d5..000000000 --- a/third_party/aom/aom_dsp/arm/loopfilter_4_neon_asm.asm +++ /dev/null @@ -1,252 +0,0 @@ -; -; Copyright (c) 2016, Alliance for Open Media. All rights reserved -; -; This source code is subject to the terms of the BSD 2 Clause License and -; the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License -; was not distributed with this source code in the LICENSE file, you can -; obtain it at www.aomedia.org/license/software. If the Alliance for Open -; Media Patent License 1.0 was not distributed with this source code in the -; PATENTS file, you can obtain it at www.aomedia.org/license/patent. -; - -; - - EXPORT |aom_lpf_horizontal_4_neon| - EXPORT |aom_lpf_vertical_4_neon| - ARM - - AREA ||.text||, CODE, READONLY, ALIGN=2 - -; Currently aom only works on iterations 8 at a time. The aom loop filter -; works on 16 iterations at a time. -; -; void aom_lpf_horizontal_4_neon(uint8_t *s, -; int p /* pitch */, -; const uint8_t *blimit, -; const uint8_t *limit, -; const uint8_t *thresh) -; -; r0 uint8_t *s, -; r1 int p, /* pitch */ -; r2 const uint8_t *blimit, -; r3 const uint8_t *limit, -; sp const uint8_t *thresh, -|aom_lpf_horizontal_4_neon| PROC - push {lr} - - vld1.8 {d0[]}, [r2] ; duplicate *blimit - ldr r2, [sp, #4] ; load thresh - add r1, r1, r1 ; double pitch - - vld1.8 {d1[]}, [r3] ; duplicate *limit - vld1.8 {d2[]}, [r2] ; duplicate *thresh - - sub r2, r0, r1, lsl #1 ; move src pointer down by 4 lines - add r3, r2, r1, lsr #1 ; set to 3 lines down - - vld1.u8 {d3}, [r2@64], r1 ; p3 - vld1.u8 {d4}, [r3@64], r1 ; p2 - vld1.u8 {d5}, [r2@64], r1 ; p1 - vld1.u8 {d6}, [r3@64], r1 ; p0 - vld1.u8 {d7}, [r2@64], r1 ; q0 - vld1.u8 {d16}, [r3@64], r1 ; q1 - vld1.u8 {d17}, [r2@64] ; q2 - vld1.u8 {d18}, [r3@64] ; q3 - - sub r2, r2, r1, lsl #1 - sub r3, r3, r1, lsl #1 - - bl aom_loop_filter_neon - - vst1.u8 {d4}, [r2@64], r1 ; store op1 - vst1.u8 {d5}, [r3@64], r1 ; store op0 - vst1.u8 {d6}, [r2@64], r1 ; store oq0 - vst1.u8 {d7}, [r3@64], r1 ; store oq1 - - pop {pc} - ENDP ; |aom_lpf_horizontal_4_neon| - -; Currently aom only works on iterations 8 at a time. The aom loop filter -; works on 16 iterations at a time. -; -; void aom_lpf_vertical_4_neon(uint8_t *s, -; int p /* pitch */, -; const uint8_t *blimit, -; const uint8_t *limit, -; const uint8_t *thresh) -; -; r0 uint8_t *s, -; r1 int p, /* pitch */ -; r2 const uint8_t *blimit, -; r3 const uint8_t *limit, -; sp const uint8_t *thresh, -|aom_lpf_vertical_4_neon| PROC - push {lr} - - vld1.8 {d0[]}, [r2] ; duplicate *blimit - vld1.8 {d1[]}, [r3] ; duplicate *limit - - ldr r3, [sp, #4] ; load thresh - sub r2, r0, #4 ; move s pointer down by 4 columns - - vld1.8 {d2[]}, [r3] ; duplicate *thresh - - vld1.u8 {d3}, [r2], r1 ; load s data - vld1.u8 {d4}, [r2], r1 - vld1.u8 {d5}, [r2], r1 - vld1.u8 {d6}, [r2], r1 - vld1.u8 {d7}, [r2], r1 - vld1.u8 {d16}, [r2], r1 - vld1.u8 {d17}, [r2], r1 - vld1.u8 {d18}, [r2] - - ;transpose to 8x16 matrix - vtrn.32 d3, d7 - vtrn.32 d4, d16 - vtrn.32 d5, d17 - vtrn.32 d6, d18 - - vtrn.16 d3, d5 - vtrn.16 d4, d6 - vtrn.16 d7, d17 - vtrn.16 d16, d18 - - vtrn.8 d3, d4 - vtrn.8 d5, d6 - vtrn.8 d7, d16 - vtrn.8 d17, d18 - - bl aom_loop_filter_neon - - sub r0, r0, #2 - - ;store op1, op0, oq0, oq1 - 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 - vst4.8 {d4[4], d5[4], d6[4], d7[4]}, [r0], r1 - vst4.8 {d4[5], d5[5], d6[5], d7[5]}, [r0], r1 - vst4.8 {d4[6], d5[6], d6[6], d7[6]}, [r0], r1 - vst4.8 {d4[7], d5[7], d6[7], d7[7]}, [r0] - - pop {pc} - ENDP ; |aom_lpf_vertical_4_neon| - -; void aom_loop_filter_neon(); -; This is a helper function for the loopfilters. The invidual functions do the -; necessary load, transpose (if necessary) and store. The function does not use -; registers d8-d15. -; -; Inputs: -; r0-r3, r12 PRESERVE -; d0 blimit -; d1 limit -; d2 thresh -; d3 p3 -; d4 p2 -; d5 p1 -; d6 p0 -; d7 q0 -; d16 q1 -; d17 q2 -; d18 q3 -; -; Outputs: -; d4 op1 -; d5 op0 -; d6 oq0 -; d7 oq1 -|aom_loop_filter_neon| PROC - ; filter_mask - vabd.u8 d19, d3, d4 ; m1 = abs(p3 - p2) - vabd.u8 d20, d4, d5 ; m2 = abs(p2 - p1) - vabd.u8 d21, d5, d6 ; m3 = abs(p1 - p0) - vabd.u8 d22, d16, d7 ; m4 = abs(q1 - q0) - vabd.u8 d3, d17, d16 ; m5 = abs(q2 - q1) - vabd.u8 d4, d18, d17 ; m6 = abs(q3 - q2) - - ; only compare the largest value to limit - vmax.u8 d19, d19, d20 ; m1 = max(m1, m2) - vmax.u8 d20, d21, d22 ; m2 = max(m3, m4) - - vabd.u8 d17, d6, d7 ; abs(p0 - q0) - - vmax.u8 d3, d3, d4 ; m3 = max(m5, m6) - - vmov.u8 d18, #0x80 - - vmax.u8 d23, d19, d20 ; m1 = max(m1, m2) - - ; hevmask - vcgt.u8 d21, d21, d2 ; (abs(p1 - p0) > thresh)*-1 - vcgt.u8 d22, d22, d2 ; (abs(q1 - q0) > thresh)*-1 - vmax.u8 d23, d23, d3 ; m1 = max(m1, m3) - - vabd.u8 d28, d5, d16 ; a = abs(p1 - q1) - vqadd.u8 d17, d17, d17 ; b = abs(p0 - q0) * 2 - - veor d7, d7, d18 ; qs0 - - vcge.u8 d23, d1, d23 ; abs(m1) > limit - - ; filter() function - ; convert to signed - - vshr.u8 d28, d28, #1 ; a = a / 2 - veor d6, d6, d18 ; ps0 - - veor d5, d5, d18 ; ps1 - vqadd.u8 d17, d17, d28 ; a = b + a - - veor d16, d16, d18 ; qs1 - - vmov.u8 d19, #3 - - vsub.s8 d28, d7, d6 ; ( qs0 - ps0) - - vcge.u8 d17, d0, d17 ; a > blimit - - vqsub.s8 d27, d5, d16 ; filter = clamp(ps1-qs1) - vorr d22, d21, d22 ; hevmask - - vmull.s8 q12, d28, d19 ; 3 * ( qs0 - ps0) - - vand d27, d27, d22 ; filter &= hev - vand d23, d23, d17 ; filter_mask - - vaddw.s8 q12, q12, d27 ; filter + 3 * (qs0 - ps0) - - vmov.u8 d17, #4 - - ; filter = clamp(filter + 3 * ( qs0 - ps0)) - vqmovn.s16 d27, q12 - - vand d27, d27, d23 ; filter &= mask - - vqadd.s8 d28, d27, d19 ; filter2 = clamp(filter+3) - vqadd.s8 d27, d27, d17 ; filter1 = clamp(filter+4) - vshr.s8 d28, d28, #3 ; filter2 >>= 3 - vshr.s8 d27, d27, #3 ; filter1 >>= 3 - - vqadd.s8 d19, d6, d28 ; u = clamp(ps0 + filter2) - vqsub.s8 d26, d7, d27 ; u = clamp(qs0 - filter1) - - ; outer tap adjustments - vrshr.s8 d27, d27, #1 ; filter = ++filter1 >> 1 - - veor d6, d26, d18 ; *oq0 = u^0x80 - - vbic d27, d27, d22 ; filter &= ~hev - - vqadd.s8 d21, d5, d27 ; u = clamp(ps1 + filter) - vqsub.s8 d20, d16, d27 ; u = clamp(qs1 - filter) - - veor d5, d19, d18 ; *op0 = u^0x80 - veor d4, d21, d18 ; *op1 = u^0x80 - veor d7, d20, d18 ; *oq1 = u^0x80 - - bx lr - ENDP ; |aom_loop_filter_neon| - - END |