ref: bc83179c078fcc498d8d4ee3490c2acebc9cbf9c
dir: /codec/common/arm/intra_pred_common_neon.S/
/*!
* \copy
* Copyright (c) 2013, Cisco Systems
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifdef HAVE_NEON
#include "arm_arch_common_macro.S"
WELS_ASM_FUNC_BEGIN WelsI16x16LumaPredV_neon
//Get the top line data to 'q0'
sub r3, r1, r2
vldm r3, {d0, d1}
//mov r2, #16
mov r3, #4
//Set the top line to the each line of MB(16*16)
loop_0_get_i16x16_luma_pred_v:
vst1.8 {d0,d1}, [r0]!
vst1.8 {d0,d1}, [r0]!
vst1.8 {d0,d1}, [r0]!
vst1.8 {d0,d1}, [r0]!
subs r3, #1
bne loop_0_get_i16x16_luma_pred_v
WELS_ASM_FUNC_END
WELS_ASM_FUNC_BEGIN WelsI16x16LumaPredH_neon
//stmdb sp!, {r4, lr}
sub r1, r1, #1
mov r3, #4
loop_0_get_i16x16_luma_pred_h:
//Get one byte data from left side
vld1.8 {d0[],d1[]}, [r1], r2
vld1.8 {d2[],d3[]}, [r1], r2
vld1.8 {d4[],d5[]}, [r1], r2
vld1.8 {d6[],d7[]}, [r1], r2
//Set the line of MB using the left side byte data
vst1.8 {d0,d1}, [r0]!
//add r0, #16
vst1.8 {d2,d3}, [r0]!
//add r0, #16
vst1.8 {d4,d5}, [r0]!
//add r0, #16
vst1.8 {d6,d7}, [r0]!
//add r0, #16
subs r3, #1
bne loop_0_get_i16x16_luma_pred_h
WELS_ASM_FUNC_END
#endif