| /* |
| * |
| * Copyright 2012 Samsung Electronics S.LSI Co. LTD |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License") |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /* |
| * @file csc_linear_to_tiled_crop_neon.s |
| * @brief SEC_OMX specific define |
| * @author ShinWon Lee (shinwon.lee@samsung.com) |
| * @version 1.0 |
| * @history |
| * 2012.02.01 : Create |
| */ |
| |
| /* |
| * Interleave src1, src2 to dst |
| * |
| * @param dest |
| * dst address[out] |
| * |
| * @param src1 |
| * src1 address[in] |
| * |
| * @param src2 |
| * src2 address[in] |
| * |
| * @param src_size |
| * src_size or src1 |
| */ |
| |
| .arch armv7-a |
| .text |
| .global csc_interleave_memcpy_neon |
| .type csc_interleave_memcpy_neon, %function |
| csc_interleave_memcpy_neon: |
| .fnstart |
| |
| @r0 dest |
| @r1 src1 |
| @r2 src2 |
| @r3 src_size |
| @r4 |
| @r5 |
| @r6 |
| @r7 |
| @r8 temp1 |
| @r9 temp2 |
| @r10 dest_addr |
| @r11 src1_addr |
| @r12 src2_addr |
| @r14 i |
| |
| stmfd sp!, {r8-r12,r14} @ backup registers |
| |
| mov r10, r0 |
| mov r11, r1 |
| mov r12, r2 |
| mov r14, r3 |
| |
| cmp r14, #128 |
| blt LESS_THAN_128 |
| |
| LOOP_128: |
| vld1.8 {q0}, [r11]! |
| vld1.8 {q2}, [r11]! |
| vld1.8 {q4}, [r11]! |
| vld1.8 {q6}, [r11]! |
| vld1.8 {q8}, [r11]! |
| vld1.8 {q10}, [r11]! |
| vld1.8 {q12}, [r11]! |
| vld1.8 {q14}, [r11]! |
| vld1.8 {q1}, [r12]! |
| vld1.8 {q3}, [r12]! |
| vld1.8 {q5}, [r12]! |
| vld1.8 {q7}, [r12]! |
| vld1.8 {q9}, [r12]! |
| vld1.8 {q11}, [r12]! |
| vld1.8 {q13}, [r12]! |
| vld1.8 {q15}, [r12]! |
| |
| vst2.8 {q0, q1}, [r10]! |
| vst2.8 {q2, q3}, [r10]! |
| vst2.8 {q4, q5}, [r10]! |
| vst2.8 {q6, q7}, [r10]! |
| vst2.8 {q8, q9}, [r10]! |
| vst2.8 {q10, q11}, [r10]! |
| vst2.8 {q12, q13}, [r10]! |
| vst2.8 {q14, q15}, [r10]! |
| |
| sub r14, #128 |
| cmp r14, #128 |
| bgt LOOP_128 |
| |
| LESS_THAN_128: |
| cmp r14, #0 |
| beq RESTORE_REG |
| |
| LOOP_1: |
| ldrb r8, [r11], #1 |
| ldrb r9, [r12], #1 |
| strb r8, [r10], #1 |
| strb r9, [r10], #1 |
| subs r14, #1 |
| bne LOOP_1 |
| |
| RESTORE_REG: |
| ldmfd sp!, {r8-r12,r15} @ restore registers |
| .fnend |
