vpx_convolve8_avg_neon_asm.asm revision 3df0563f1b24dac6c0bd122fc922a48211269061
191037db265ecdd914a26e056cf69207b4f50924ehkuang; 291037db265ecdd914a26e056cf69207b4f50924ehkuang; Copyright (c) 2013 The WebM project authors. All Rights Reserved. 391037db265ecdd914a26e056cf69207b4f50924ehkuang; 491037db265ecdd914a26e056cf69207b4f50924ehkuang; Use of this source code is governed by a BSD-style license 591037db265ecdd914a26e056cf69207b4f50924ehkuang; that can be found in the LICENSE file in the root of the source 691037db265ecdd914a26e056cf69207b4f50924ehkuang; tree. An additional intellectual property rights grant can be found 791037db265ecdd914a26e056cf69207b4f50924ehkuang; in the file PATENTS. All contributing project authors may 891037db265ecdd914a26e056cf69207b4f50924ehkuang; be found in the AUTHORS file in the root of the source tree. 991037db265ecdd914a26e056cf69207b4f50924ehkuang; 1091037db265ecdd914a26e056cf69207b4f50924ehkuang 1191037db265ecdd914a26e056cf69207b4f50924ehkuang 1291037db265ecdd914a26e056cf69207b4f50924ehkuang ; These functions are only valid when: 1391037db265ecdd914a26e056cf69207b4f50924ehkuang ; x_step_q4 == 16 1491037db265ecdd914a26e056cf69207b4f50924ehkuang ; w%4 == 0 1591037db265ecdd914a26e056cf69207b4f50924ehkuang ; h%4 == 0 1691037db265ecdd914a26e056cf69207b4f50924ehkuang ; taps == 8 1791037db265ecdd914a26e056cf69207b4f50924ehkuang ; VP9_FILTER_WEIGHT == 128 1891037db265ecdd914a26e056cf69207b4f50924ehkuang ; VP9_FILTER_SHIFT == 7 1991037db265ecdd914a26e056cf69207b4f50924ehkuang 2091037db265ecdd914a26e056cf69207b4f50924ehkuang EXPORT |vp9_convolve8_avg_horiz_neon| 2191037db265ecdd914a26e056cf69207b4f50924ehkuang EXPORT |vp9_convolve8_avg_vert_neon| 2291037db265ecdd914a26e056cf69207b4f50924ehkuang IMPORT |vp9_convolve8_avg_horiz_c| 2391037db265ecdd914a26e056cf69207b4f50924ehkuang IMPORT |vp9_convolve8_avg_vert_c| 2491037db265ecdd914a26e056cf69207b4f50924ehkuang ARM 2591037db265ecdd914a26e056cf69207b4f50924ehkuang REQUIRE8 2691037db265ecdd914a26e056cf69207b4f50924ehkuang PRESERVE8 2791037db265ecdd914a26e056cf69207b4f50924ehkuang 2891037db265ecdd914a26e056cf69207b4f50924ehkuang AREA ||.text||, CODE, READONLY, ALIGN=2 2991037db265ecdd914a26e056cf69207b4f50924ehkuang 3091037db265ecdd914a26e056cf69207b4f50924ehkuang ; Multiply and accumulate by q0 3191037db265ecdd914a26e056cf69207b4f50924ehkuang MACRO 3291037db265ecdd914a26e056cf69207b4f50924ehkuang MULTIPLY_BY_Q0 $dst, $src0, $src1, $src2, $src3, $src4, $src5, $src6, $src7 3391037db265ecdd914a26e056cf69207b4f50924ehkuang vmull.s16 $dst, $src0, d0[0] 3491037db265ecdd914a26e056cf69207b4f50924ehkuang vmlal.s16 $dst, $src1, d0[1] 3591037db265ecdd914a26e056cf69207b4f50924ehkuang vmlal.s16 $dst, $src2, d0[2] 3691037db265ecdd914a26e056cf69207b4f50924ehkuang vmlal.s16 $dst, $src3, d0[3] 3791037db265ecdd914a26e056cf69207b4f50924ehkuang vmlal.s16 $dst, $src4, d1[0] 3891037db265ecdd914a26e056cf69207b4f50924ehkuang vmlal.s16 $dst, $src5, d1[1] 3991037db265ecdd914a26e056cf69207b4f50924ehkuang vmlal.s16 $dst, $src6, d1[2] 4091037db265ecdd914a26e056cf69207b4f50924ehkuang vmlal.s16 $dst, $src7, d1[3] 4191037db265ecdd914a26e056cf69207b4f50924ehkuang MEND 4291037db265ecdd914a26e056cf69207b4f50924ehkuang 4391037db265ecdd914a26e056cf69207b4f50924ehkuang; r0 const uint8_t *src 4491037db265ecdd914a26e056cf69207b4f50924ehkuang; r1 int src_stride 4591037db265ecdd914a26e056cf69207b4f50924ehkuang; r2 uint8_t *dst 4691037db265ecdd914a26e056cf69207b4f50924ehkuang; r3 int dst_stride 4791037db265ecdd914a26e056cf69207b4f50924ehkuang; sp[]const int16_t *filter_x 4891037db265ecdd914a26e056cf69207b4f50924ehkuang; sp[]int x_step_q4 4991037db265ecdd914a26e056cf69207b4f50924ehkuang; sp[]const int16_t *filter_y ; unused 5091037db265ecdd914a26e056cf69207b4f50924ehkuang; sp[]int y_step_q4 ; unused 5191037db265ecdd914a26e056cf69207b4f50924ehkuang; sp[]int w 5291037db265ecdd914a26e056cf69207b4f50924ehkuang; sp[]int h 5391037db265ecdd914a26e056cf69207b4f50924ehkuang 5491037db265ecdd914a26e056cf69207b4f50924ehkuang|vp9_convolve8_avg_horiz_neon| PROC 55f3bed9137f66ef693bd406e43b17e9a1114f1e14hkuang ldr r12, [sp, #4] ; x_step_q4 56f3bed9137f66ef693bd406e43b17e9a1114f1e14hkuang cmp r12, #16 57f3bed9137f66ef693bd406e43b17e9a1114f1e14hkuang bne vp9_convolve8_avg_horiz_c 58f3bed9137f66ef693bd406e43b17e9a1114f1e14hkuang 5991037db265ecdd914a26e056cf69207b4f50924ehkuang push {r4-r10, lr} 6091037db265ecdd914a26e056cf69207b4f50924ehkuang 6191037db265ecdd914a26e056cf69207b4f50924ehkuang sub r0, r0, #3 ; adjust for taps 6291037db265ecdd914a26e056cf69207b4f50924ehkuang 6391037db265ecdd914a26e056cf69207b4f50924ehkuang ldr r5, [sp, #32] ; filter_x 6491037db265ecdd914a26e056cf69207b4f50924ehkuang ldr r6, [sp, #48] ; w 6591037db265ecdd914a26e056cf69207b4f50924ehkuang ldr r7, [sp, #52] ; h 6691037db265ecdd914a26e056cf69207b4f50924ehkuang 6791037db265ecdd914a26e056cf69207b4f50924ehkuang vld1.s16 {q0}, [r5] ; filter_x 6891037db265ecdd914a26e056cf69207b4f50924ehkuang 693df0563f1b24dac6c0bd122fc922a48211269061hkuang sub r8, r1, r1, lsl #2 ; -src_stride * 3 703df0563f1b24dac6c0bd122fc922a48211269061hkuang add r8, r8, #4 ; -src_stride * 3 + 4 7191037db265ecdd914a26e056cf69207b4f50924ehkuang 723df0563f1b24dac6c0bd122fc922a48211269061hkuang sub r4, r3, r3, lsl #2 ; -dst_stride * 3 733df0563f1b24dac6c0bd122fc922a48211269061hkuang add r4, r4, #4 ; -dst_stride * 3 + 4 7491037db265ecdd914a26e056cf69207b4f50924ehkuang 753df0563f1b24dac6c0bd122fc922a48211269061hkuang rsb r9, r6, r1, lsl #2 ; reset src for outer loop 763df0563f1b24dac6c0bd122fc922a48211269061hkuang sub r9, r9, #7 7791037db265ecdd914a26e056cf69207b4f50924ehkuang rsb r12, r6, r3, lsl #2 ; reset dst for outer loop 7891037db265ecdd914a26e056cf69207b4f50924ehkuang 7991037db265ecdd914a26e056cf69207b4f50924ehkuang mov r10, r6 ; w loop counter 8091037db265ecdd914a26e056cf69207b4f50924ehkuang 813df0563f1b24dac6c0bd122fc922a48211269061hkuangloop_horiz_v 823df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.8 {d24}, [r0], r1 833df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.8 {d25}, [r0], r1 843df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.8 {d26}, [r0], r1 853df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.8 {d27}, [r0], r8 8691037db265ecdd914a26e056cf69207b4f50924ehkuang 87f3bed9137f66ef693bd406e43b17e9a1114f1e14hkuang vtrn.16 q12, q13 88f3bed9137f66ef693bd406e43b17e9a1114f1e14hkuang vtrn.8 d24, d25 89f3bed9137f66ef693bd406e43b17e9a1114f1e14hkuang vtrn.8 d26, d27 90f3bed9137f66ef693bd406e43b17e9a1114f1e14hkuang 913df0563f1b24dac6c0bd122fc922a48211269061hkuang pld [r0, r1, lsl #2] 923df0563f1b24dac6c0bd122fc922a48211269061hkuang 9391037db265ecdd914a26e056cf69207b4f50924ehkuang vmovl.u8 q8, d24 9491037db265ecdd914a26e056cf69207b4f50924ehkuang vmovl.u8 q9, d25 9591037db265ecdd914a26e056cf69207b4f50924ehkuang vmovl.u8 q10, d26 9691037db265ecdd914a26e056cf69207b4f50924ehkuang vmovl.u8 q11, d27 973df0563f1b24dac6c0bd122fc922a48211269061hkuang 983df0563f1b24dac6c0bd122fc922a48211269061hkuang ; save a few instructions in the inner loop 993df0563f1b24dac6c0bd122fc922a48211269061hkuang vswp d17, d18 1003df0563f1b24dac6c0bd122fc922a48211269061hkuang vmov d23, d21 1013df0563f1b24dac6c0bd122fc922a48211269061hkuang 1023df0563f1b24dac6c0bd122fc922a48211269061hkuang add r0, r0, #3 1033df0563f1b24dac6c0bd122fc922a48211269061hkuang 1043df0563f1b24dac6c0bd122fc922a48211269061hkuangloop_horiz 1053df0563f1b24dac6c0bd122fc922a48211269061hkuang add r5, r0, #64 1063df0563f1b24dac6c0bd122fc922a48211269061hkuang 1073df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.32 {d28[]}, [r0], r1 1083df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.32 {d29[]}, [r0], r1 1093df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.32 {d31[]}, [r0], r1 1103df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.32 {d30[]}, [r0], r8 1113df0563f1b24dac6c0bd122fc922a48211269061hkuang 1123df0563f1b24dac6c0bd122fc922a48211269061hkuang pld [r5] 1133df0563f1b24dac6c0bd122fc922a48211269061hkuang 1143df0563f1b24dac6c0bd122fc922a48211269061hkuang vtrn.16 d28, d31 1153df0563f1b24dac6c0bd122fc922a48211269061hkuang vtrn.16 d29, d30 1163df0563f1b24dac6c0bd122fc922a48211269061hkuang vtrn.8 d28, d29 1173df0563f1b24dac6c0bd122fc922a48211269061hkuang vtrn.8 d31, d30 1183df0563f1b24dac6c0bd122fc922a48211269061hkuang 1193df0563f1b24dac6c0bd122fc922a48211269061hkuang pld [r5, r1] 1203df0563f1b24dac6c0bd122fc922a48211269061hkuang 1213df0563f1b24dac6c0bd122fc922a48211269061hkuang ; extract to s16 1223df0563f1b24dac6c0bd122fc922a48211269061hkuang vtrn.32 q14, q15 12391037db265ecdd914a26e056cf69207b4f50924ehkuang vmovl.u8 q12, d28 1243df0563f1b24dac6c0bd122fc922a48211269061hkuang vmovl.u8 q13, d29 1253df0563f1b24dac6c0bd122fc922a48211269061hkuang 1263df0563f1b24dac6c0bd122fc922a48211269061hkuang pld [r5, r1, lsl #1] 12791037db265ecdd914a26e056cf69207b4f50924ehkuang 12891037db265ecdd914a26e056cf69207b4f50924ehkuang ; slightly out of order load to match the existing data 12991037db265ecdd914a26e056cf69207b4f50924ehkuang vld1.u32 {d6[0]}, [r2], r3 13091037db265ecdd914a26e056cf69207b4f50924ehkuang vld1.u32 {d7[0]}, [r2], r3 13191037db265ecdd914a26e056cf69207b4f50924ehkuang vld1.u32 {d6[1]}, [r2], r3 13291037db265ecdd914a26e056cf69207b4f50924ehkuang vld1.u32 {d7[1]}, [r2], r3 13391037db265ecdd914a26e056cf69207b4f50924ehkuang 13491037db265ecdd914a26e056cf69207b4f50924ehkuang sub r2, r2, r3, lsl #2 ; reset for store 13591037db265ecdd914a26e056cf69207b4f50924ehkuang 13691037db265ecdd914a26e056cf69207b4f50924ehkuang ; src[] * filter_x 1373df0563f1b24dac6c0bd122fc922a48211269061hkuang MULTIPLY_BY_Q0 q1, d16, d17, d20, d22, d18, d19, d23, d24 1383df0563f1b24dac6c0bd122fc922a48211269061hkuang MULTIPLY_BY_Q0 q2, d17, d20, d22, d18, d19, d23, d24, d26 1393df0563f1b24dac6c0bd122fc922a48211269061hkuang MULTIPLY_BY_Q0 q14, d20, d22, d18, d19, d23, d24, d26, d27 1403df0563f1b24dac6c0bd122fc922a48211269061hkuang MULTIPLY_BY_Q0 q15, d22, d18, d19, d23, d24, d26, d27, d25 1413df0563f1b24dac6c0bd122fc922a48211269061hkuang 1423df0563f1b24dac6c0bd122fc922a48211269061hkuang pld [r5, -r8] 14391037db265ecdd914a26e056cf69207b4f50924ehkuang 14491037db265ecdd914a26e056cf69207b4f50924ehkuang ; += 64 >> 7 14591037db265ecdd914a26e056cf69207b4f50924ehkuang vqrshrun.s32 d2, q1, #7 14691037db265ecdd914a26e056cf69207b4f50924ehkuang vqrshrun.s32 d3, q2, #7 14791037db265ecdd914a26e056cf69207b4f50924ehkuang vqrshrun.s32 d4, q14, #7 14891037db265ecdd914a26e056cf69207b4f50924ehkuang vqrshrun.s32 d5, q15, #7 14991037db265ecdd914a26e056cf69207b4f50924ehkuang 15091037db265ecdd914a26e056cf69207b4f50924ehkuang ; saturate 151f3bed9137f66ef693bd406e43b17e9a1114f1e14hkuang vqmovn.u16 d2, q1 152f3bed9137f66ef693bd406e43b17e9a1114f1e14hkuang vqmovn.u16 d3, q2 15391037db265ecdd914a26e056cf69207b4f50924ehkuang 15491037db265ecdd914a26e056cf69207b4f50924ehkuang ; transpose 15591037db265ecdd914a26e056cf69207b4f50924ehkuang vtrn.16 d2, d3 15691037db265ecdd914a26e056cf69207b4f50924ehkuang vtrn.32 d2, d3 15791037db265ecdd914a26e056cf69207b4f50924ehkuang vtrn.8 d2, d3 1583df0563f1b24dac6c0bd122fc922a48211269061hkuang 15991037db265ecdd914a26e056cf69207b4f50924ehkuang ; average the new value and the dst value 160f3bed9137f66ef693bd406e43b17e9a1114f1e14hkuang vrhadd.u8 q1, q1, q3 16191037db265ecdd914a26e056cf69207b4f50924ehkuang 1623df0563f1b24dac6c0bd122fc922a48211269061hkuang vst1.u32 {d2[0]}, [r2@32], r3 1633df0563f1b24dac6c0bd122fc922a48211269061hkuang vst1.u32 {d3[0]}, [r2@32], r3 1643df0563f1b24dac6c0bd122fc922a48211269061hkuang vst1.u32 {d2[1]}, [r2@32], r3 1653df0563f1b24dac6c0bd122fc922a48211269061hkuang vst1.u32 {d3[1]}, [r2@32], r4 1663df0563f1b24dac6c0bd122fc922a48211269061hkuang 1673df0563f1b24dac6c0bd122fc922a48211269061hkuang vmov q8, q9 1683df0563f1b24dac6c0bd122fc922a48211269061hkuang vmov d20, d23 1693df0563f1b24dac6c0bd122fc922a48211269061hkuang vmov q11, q12 1703df0563f1b24dac6c0bd122fc922a48211269061hkuang vmov q9, q13 17191037db265ecdd914a26e056cf69207b4f50924ehkuang 17291037db265ecdd914a26e056cf69207b4f50924ehkuang subs r6, r6, #4 ; w -= 4 17391037db265ecdd914a26e056cf69207b4f50924ehkuang bgt loop_horiz 17491037db265ecdd914a26e056cf69207b4f50924ehkuang 17591037db265ecdd914a26e056cf69207b4f50924ehkuang ; outer loop 17691037db265ecdd914a26e056cf69207b4f50924ehkuang mov r6, r10 ; restore w counter 1773df0563f1b24dac6c0bd122fc922a48211269061hkuang add r0, r0, r9 ; src += src_stride * 4 - w 17891037db265ecdd914a26e056cf69207b4f50924ehkuang add r2, r2, r12 ; dst += dst_stride * 4 - w 17991037db265ecdd914a26e056cf69207b4f50924ehkuang subs r7, r7, #4 ; h -= 4 1803df0563f1b24dac6c0bd122fc922a48211269061hkuang bgt loop_horiz_v 18191037db265ecdd914a26e056cf69207b4f50924ehkuang 18291037db265ecdd914a26e056cf69207b4f50924ehkuang pop {r4-r10, pc} 18391037db265ecdd914a26e056cf69207b4f50924ehkuang 18491037db265ecdd914a26e056cf69207b4f50924ehkuang ENDP 18591037db265ecdd914a26e056cf69207b4f50924ehkuang 18691037db265ecdd914a26e056cf69207b4f50924ehkuang|vp9_convolve8_avg_vert_neon| PROC 187f3bed9137f66ef693bd406e43b17e9a1114f1e14hkuang ldr r12, [sp, #12] 188f3bed9137f66ef693bd406e43b17e9a1114f1e14hkuang cmp r12, #16 189f3bed9137f66ef693bd406e43b17e9a1114f1e14hkuang bne vp9_convolve8_avg_vert_c 190f3bed9137f66ef693bd406e43b17e9a1114f1e14hkuang 1913df0563f1b24dac6c0bd122fc922a48211269061hkuang push {r4-r8, lr} 19291037db265ecdd914a26e056cf69207b4f50924ehkuang 19391037db265ecdd914a26e056cf69207b4f50924ehkuang ; adjust for taps 19491037db265ecdd914a26e056cf69207b4f50924ehkuang sub r0, r0, r1 19591037db265ecdd914a26e056cf69207b4f50924ehkuang sub r0, r0, r1, lsl #1 19691037db265ecdd914a26e056cf69207b4f50924ehkuang 1973df0563f1b24dac6c0bd122fc922a48211269061hkuang ldr r4, [sp, #32] ; filter_y 1983df0563f1b24dac6c0bd122fc922a48211269061hkuang ldr r6, [sp, #40] ; w 1993df0563f1b24dac6c0bd122fc922a48211269061hkuang ldr lr, [sp, #44] ; h 20091037db265ecdd914a26e056cf69207b4f50924ehkuang 2013df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.s16 {q0}, [r4] ; filter_y 20291037db265ecdd914a26e056cf69207b4f50924ehkuang 2033df0563f1b24dac6c0bd122fc922a48211269061hkuang lsl r1, r1, #1 2043df0563f1b24dac6c0bd122fc922a48211269061hkuang lsl r3, r3, #1 20591037db265ecdd914a26e056cf69207b4f50924ehkuang 2063df0563f1b24dac6c0bd122fc922a48211269061hkuangloop_vert_h 2073df0563f1b24dac6c0bd122fc922a48211269061hkuang mov r4, r0 2083df0563f1b24dac6c0bd122fc922a48211269061hkuang add r7, r0, r1, asr #1 2093df0563f1b24dac6c0bd122fc922a48211269061hkuang mov r5, r2 2103df0563f1b24dac6c0bd122fc922a48211269061hkuang add r8, r2, r3, asr #1 2113df0563f1b24dac6c0bd122fc922a48211269061hkuang mov r12, lr ; h loop counter 21291037db265ecdd914a26e056cf69207b4f50924ehkuang 2133df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.u32 {d16[0]}, [r4], r1 2143df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.u32 {d16[1]}, [r7], r1 2153df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.u32 {d18[0]}, [r4], r1 2163df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.u32 {d18[1]}, [r7], r1 2173df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.u32 {d20[0]}, [r4], r1 2183df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.u32 {d20[1]}, [r7], r1 2193df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.u32 {d22[0]}, [r4], r1 22091037db265ecdd914a26e056cf69207b4f50924ehkuang 2213df0563f1b24dac6c0bd122fc922a48211269061hkuang vmovl.u8 q8, d16 2223df0563f1b24dac6c0bd122fc922a48211269061hkuang vmovl.u8 q9, d18 2233df0563f1b24dac6c0bd122fc922a48211269061hkuang vmovl.u8 q10, d20 2243df0563f1b24dac6c0bd122fc922a48211269061hkuang vmovl.u8 q11, d22 22591037db265ecdd914a26e056cf69207b4f50924ehkuang 22691037db265ecdd914a26e056cf69207b4f50924ehkuangloop_vert 22791037db265ecdd914a26e056cf69207b4f50924ehkuang ; always process a 4x4 block at a time 2283df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.u32 {d24[0]}, [r7], r1 2293df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.u32 {d26[0]}, [r4], r1 2303df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.u32 {d26[1]}, [r7], r1 2313df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.u32 {d24[1]}, [r4], r1 23291037db265ecdd914a26e056cf69207b4f50924ehkuang 23391037db265ecdd914a26e056cf69207b4f50924ehkuang ; extract to s16 23491037db265ecdd914a26e056cf69207b4f50924ehkuang vmovl.u8 q12, d24 23591037db265ecdd914a26e056cf69207b4f50924ehkuang vmovl.u8 q13, d26 23691037db265ecdd914a26e056cf69207b4f50924ehkuang 2373df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.u32 {d6[0]}, [r5@32], r3 2383df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.u32 {d6[1]}, [r8@32], r3 2393df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.u32 {d7[0]}, [r5@32], r3 2403df0563f1b24dac6c0bd122fc922a48211269061hkuang vld1.u32 {d7[1]}, [r8@32], r3 24191037db265ecdd914a26e056cf69207b4f50924ehkuang 2423df0563f1b24dac6c0bd122fc922a48211269061hkuang pld [r7] 2433df0563f1b24dac6c0bd122fc922a48211269061hkuang pld [r4] 24491037db265ecdd914a26e056cf69207b4f50924ehkuang 24591037db265ecdd914a26e056cf69207b4f50924ehkuang ; src[] * filter_y 2463df0563f1b24dac6c0bd122fc922a48211269061hkuang MULTIPLY_BY_Q0 q1, d16, d17, d18, d19, d20, d21, d22, d24 2473df0563f1b24dac6c0bd122fc922a48211269061hkuang 2483df0563f1b24dac6c0bd122fc922a48211269061hkuang pld [r7, r1] 2493df0563f1b24dac6c0bd122fc922a48211269061hkuang pld [r4, r1] 2503df0563f1b24dac6c0bd122fc922a48211269061hkuang 2513df0563f1b24dac6c0bd122fc922a48211269061hkuang MULTIPLY_BY_Q0 q2, d17, d18, d19, d20, d21, d22, d24, d26 2523df0563f1b24dac6c0bd122fc922a48211269061hkuang 2533df0563f1b24dac6c0bd122fc922a48211269061hkuang pld [r5] 2543df0563f1b24dac6c0bd122fc922a48211269061hkuang pld [r8] 2553df0563f1b24dac6c0bd122fc922a48211269061hkuang 2563df0563f1b24dac6c0bd122fc922a48211269061hkuang MULTIPLY_BY_Q0 q14, d18, d19, d20, d21, d22, d24, d26, d27 2573df0563f1b24dac6c0bd122fc922a48211269061hkuang 2583df0563f1b24dac6c0bd122fc922a48211269061hkuang pld [r5, r3] 2593df0563f1b24dac6c0bd122fc922a48211269061hkuang pld [r8, r3] 2603df0563f1b24dac6c0bd122fc922a48211269061hkuang 2613df0563f1b24dac6c0bd122fc922a48211269061hkuang MULTIPLY_BY_Q0 q15, d19, d20, d21, d22, d24, d26, d27, d25 26291037db265ecdd914a26e056cf69207b4f50924ehkuang 26391037db265ecdd914a26e056cf69207b4f50924ehkuang ; += 64 >> 7 26491037db265ecdd914a26e056cf69207b4f50924ehkuang vqrshrun.s32 d2, q1, #7 26591037db265ecdd914a26e056cf69207b4f50924ehkuang vqrshrun.s32 d3, q2, #7 26691037db265ecdd914a26e056cf69207b4f50924ehkuang vqrshrun.s32 d4, q14, #7 26791037db265ecdd914a26e056cf69207b4f50924ehkuang vqrshrun.s32 d5, q15, #7 26891037db265ecdd914a26e056cf69207b4f50924ehkuang 26991037db265ecdd914a26e056cf69207b4f50924ehkuang ; saturate 270f3bed9137f66ef693bd406e43b17e9a1114f1e14hkuang vqmovn.u16 d2, q1 271f3bed9137f66ef693bd406e43b17e9a1114f1e14hkuang vqmovn.u16 d3, q2 27291037db265ecdd914a26e056cf69207b4f50924ehkuang 27391037db265ecdd914a26e056cf69207b4f50924ehkuang ; average the new value and the dst value 274f3bed9137f66ef693bd406e43b17e9a1114f1e14hkuang vrhadd.u8 q1, q1, q3 27591037db265ecdd914a26e056cf69207b4f50924ehkuang 2763df0563f1b24dac6c0bd122fc922a48211269061hkuang sub r5, r5, r3, lsl #1 ; reset for store 2773df0563f1b24dac6c0bd122fc922a48211269061hkuang sub r8, r8, r3, lsl #1 27891037db265ecdd914a26e056cf69207b4f50924ehkuang 2793df0563f1b24dac6c0bd122fc922a48211269061hkuang vst1.u32 {d2[0]}, [r5@32], r3 2803df0563f1b24dac6c0bd122fc922a48211269061hkuang vst1.u32 {d2[1]}, [r8@32], r3 2813df0563f1b24dac6c0bd122fc922a48211269061hkuang vst1.u32 {d3[0]}, [r5@32], r3 2823df0563f1b24dac6c0bd122fc922a48211269061hkuang vst1.u32 {d3[1]}, [r8@32], r3 2833df0563f1b24dac6c0bd122fc922a48211269061hkuang 2843df0563f1b24dac6c0bd122fc922a48211269061hkuang vmov q8, q10 2853df0563f1b24dac6c0bd122fc922a48211269061hkuang vmov d18, d22 2863df0563f1b24dac6c0bd122fc922a48211269061hkuang vmov d19, d24 2873df0563f1b24dac6c0bd122fc922a48211269061hkuang vmov q10, q13 2883df0563f1b24dac6c0bd122fc922a48211269061hkuang vmov d22, d25 2893df0563f1b24dac6c0bd122fc922a48211269061hkuang 2903df0563f1b24dac6c0bd122fc922a48211269061hkuang subs r12, r12, #4 ; h -= 4 29191037db265ecdd914a26e056cf69207b4f50924ehkuang bgt loop_vert 29291037db265ecdd914a26e056cf69207b4f50924ehkuang 29391037db265ecdd914a26e056cf69207b4f50924ehkuang ; outer loop 2943df0563f1b24dac6c0bd122fc922a48211269061hkuang add r0, r0, #4 2953df0563f1b24dac6c0bd122fc922a48211269061hkuang add r2, r2, #4 2963df0563f1b24dac6c0bd122fc922a48211269061hkuang subs r6, r6, #4 ; w -= 4 2973df0563f1b24dac6c0bd122fc922a48211269061hkuang bgt loop_vert_h 29891037db265ecdd914a26e056cf69207b4f50924ehkuang 2993df0563f1b24dac6c0bd122fc922a48211269061hkuang pop {r4-r8, pc} 30091037db265ecdd914a26e056cf69207b4f50924ehkuang 30191037db265ecdd914a26e056cf69207b4f50924ehkuang ENDP 30291037db265ecdd914a26e056cf69207b4f50924ehkuang END 303