| ; |
| ; Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
| ; |
| ; Use of this source code is governed by a BSD-style license |
| ; that can be found in the LICENSE file in the root of the source |
| ; tree. An additional intellectual property rights grant can be found |
| ; in the file PATENTS. All contributing project authors may |
| ; be found in the AUTHORS file in the root of the source tree. |
| ; |
| |
| EXPORT |vp8_subtract_b_neon| |
| EXPORT |vp8_subtract_mby_neon| |
| EXPORT |vp8_subtract_mbuv_neon| |
| |
| INCLUDE asm_enc_offsets.asm |
| |
| ARM |
| REQUIRE8 |
| PRESERVE8 |
| |
| AREA ||.text||, CODE, READONLY, ALIGN=2 |
| |
| ;void vp8_subtract_b_neon(BLOCK *be, BLOCKD *bd, int pitch) |
| |vp8_subtract_b_neon| PROC |
| |
| stmfd sp!, {r4-r7} |
| |
| ldr r3, [r0, #vp8_block_base_src] |
| ldr r4, [r0, #vp8_block_src] |
| ldr r5, [r0, #vp8_block_src_diff] |
| ldr r3, [r3] |
| ldr r6, [r0, #vp8_block_src_stride] |
| add r3, r3, r4 ; src = *base_src + src |
| ldr r7, [r1, #vp8_blockd_predictor] |
| |
| vld1.8 {d0}, [r3], r6 ;load src |
| vld1.8 {d1}, [r7], r2 ;load pred |
| vld1.8 {d2}, [r3], r6 |
| vld1.8 {d3}, [r7], r2 |
| vld1.8 {d4}, [r3], r6 |
| vld1.8 {d5}, [r7], r2 |
| vld1.8 {d6}, [r3], r6 |
| vld1.8 {d7}, [r7], r2 |
| |
| vsubl.u8 q10, d0, d1 |
| vsubl.u8 q11, d2, d3 |
| vsubl.u8 q12, d4, d5 |
| vsubl.u8 q13, d6, d7 |
| |
| mov r2, r2, lsl #1 |
| |
| vst1.16 {d20}, [r5], r2 ;store diff |
| vst1.16 {d22}, [r5], r2 |
| vst1.16 {d24}, [r5], r2 |
| vst1.16 {d26}, [r5], r2 |
| |
| ldmfd sp!, {r4-r7} |
| bx lr |
| |
| ENDP |
| |
| |
| ;========================================== |
| ;void vp8_subtract_mby_neon(short *diff, unsigned char *src, int src_stride |
| ; unsigned char *pred, int pred_stride) |
| |vp8_subtract_mby_neon| PROC |
| push {r4-r7} |
| mov r12, #4 |
| ldr r4, [sp, #16] ; pred_stride |
| mov r6, #32 ; "diff" stride x2 |
| add r5, r0, #16 ; second diff pointer |
| |
| subtract_mby_loop |
| vld1.8 {q0}, [r1], r2 ;load src |
| vld1.8 {q1}, [r3], r4 ;load pred |
| vld1.8 {q2}, [r1], r2 |
| vld1.8 {q3}, [r3], r4 |
| vld1.8 {q4}, [r1], r2 |
| vld1.8 {q5}, [r3], r4 |
| vld1.8 {q6}, [r1], r2 |
| vld1.8 {q7}, [r3], r4 |
| |
| vsubl.u8 q8, d0, d2 |
| vsubl.u8 q9, d1, d3 |
| vsubl.u8 q10, d4, d6 |
| vsubl.u8 q11, d5, d7 |
| vsubl.u8 q12, d8, d10 |
| vsubl.u8 q13, d9, d11 |
| vsubl.u8 q14, d12, d14 |
| vsubl.u8 q15, d13, d15 |
| |
| vst1.16 {q8}, [r0], r6 ;store diff |
| vst1.16 {q9}, [r5], r6 |
| vst1.16 {q10}, [r0], r6 |
| vst1.16 {q11}, [r5], r6 |
| vst1.16 {q12}, [r0], r6 |
| vst1.16 {q13}, [r5], r6 |
| vst1.16 {q14}, [r0], r6 |
| vst1.16 {q15}, [r5], r6 |
| |
| subs r12, r12, #1 |
| bne subtract_mby_loop |
| |
| pop {r4-r7} |
| bx lr |
| ENDP |
| |
| ;================================= |
| ;void vp8_subtract_mbuv_c(short *diff, unsigned char *usrc, unsigned char *vsrc, |
| ; int src_stride, unsigned char *upred, |
| ; unsigned char *vpred, int pred_stride) |
| |
| |vp8_subtract_mbuv_neon| PROC |
| push {r4-r7} |
| ldr r4, [sp, #16] ; upred |
| ldr r5, [sp, #20] ; vpred |
| ldr r6, [sp, #24] ; pred_stride |
| add r0, r0, #512 ; short *udiff = diff + 256; |
| mov r12, #32 ; "diff" stride x2 |
| add r7, r0, #16 ; second diff pointer |
| |
| ;u |
| vld1.8 {d0}, [r1], r3 ;load usrc |
| vld1.8 {d1}, [r4], r6 ;load upred |
| vld1.8 {d2}, [r1], r3 |
| vld1.8 {d3}, [r4], r6 |
| vld1.8 {d4}, [r1], r3 |
| vld1.8 {d5}, [r4], r6 |
| vld1.8 {d6}, [r1], r3 |
| vld1.8 {d7}, [r4], r6 |
| vld1.8 {d8}, [r1], r3 |
| vld1.8 {d9}, [r4], r6 |
| vld1.8 {d10}, [r1], r3 |
| vld1.8 {d11}, [r4], r6 |
| vld1.8 {d12}, [r1], r3 |
| vld1.8 {d13}, [r4], r6 |
| vld1.8 {d14}, [r1], r3 |
| vld1.8 {d15}, [r4], r6 |
| |
| vsubl.u8 q8, d0, d1 |
| vsubl.u8 q9, d2, d3 |
| vsubl.u8 q10, d4, d5 |
| vsubl.u8 q11, d6, d7 |
| vsubl.u8 q12, d8, d9 |
| vsubl.u8 q13, d10, d11 |
| vsubl.u8 q14, d12, d13 |
| vsubl.u8 q15, d14, d15 |
| |
| vst1.16 {q8}, [r0], r12 ;store diff |
| vst1.16 {q9}, [r7], r12 |
| vst1.16 {q10}, [r0], r12 |
| vst1.16 {q11}, [r7], r12 |
| vst1.16 {q12}, [r0], r12 |
| vst1.16 {q13}, [r7], r12 |
| vst1.16 {q14}, [r0], r12 |
| vst1.16 {q15}, [r7], r12 |
| |
| ;v |
| vld1.8 {d0}, [r2], r3 ;load vsrc |
| vld1.8 {d1}, [r5], r6 ;load vpred |
| vld1.8 {d2}, [r2], r3 |
| vld1.8 {d3}, [r5], r6 |
| vld1.8 {d4}, [r2], r3 |
| vld1.8 {d5}, [r5], r6 |
| vld1.8 {d6}, [r2], r3 |
| vld1.8 {d7}, [r5], r6 |
| vld1.8 {d8}, [r2], r3 |
| vld1.8 {d9}, [r5], r6 |
| vld1.8 {d10}, [r2], r3 |
| vld1.8 {d11}, [r5], r6 |
| vld1.8 {d12}, [r2], r3 |
| vld1.8 {d13}, [r5], r6 |
| vld1.8 {d14}, [r2], r3 |
| vld1.8 {d15}, [r5], r6 |
| |
| vsubl.u8 q8, d0, d1 |
| vsubl.u8 q9, d2, d3 |
| vsubl.u8 q10, d4, d5 |
| vsubl.u8 q11, d6, d7 |
| vsubl.u8 q12, d8, d9 |
| vsubl.u8 q13, d10, d11 |
| vsubl.u8 q14, d12, d13 |
| vsubl.u8 q15, d14, d15 |
| |
| vst1.16 {q8}, [r0], r12 ;store diff |
| vst1.16 {q9}, [r7], r12 |
| vst1.16 {q10}, [r0], r12 |
| vst1.16 {q11}, [r7], r12 |
| vst1.16 {q12}, [r0], r12 |
| vst1.16 {q13}, [r7], r12 |
| vst1.16 {q14}, [r0], r12 |
| vst1.16 {q15}, [r7], r12 |
| |
| pop {r4-r7} |
| bx lr |
| |
| ENDP |
| |
| END |
