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/*
*
* 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
* 2012.01.04 : 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
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