mirror of
https://github.com/cemu-project/Cemu.git
synced 2024-12-29 11:11:51 +01:00
253 lines
6.7 KiB
ArmAsm
253 lines
6.7 KiB
ArmAsm
@/******************************************************************************
|
|
@ *
|
|
@ * Copyright (C) 2015 The Android Open Source Project
|
|
@ *
|
|
@ * 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.
|
|
@ *
|
|
@ *****************************************************************************
|
|
@ * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
|
|
@*/
|
|
@**
|
|
@******************************************************************************
|
|
@* @file
|
|
@* ih264_inter_pred_chroma_a9q.s
|
|
@*
|
|
@* @brief
|
|
@* Contains function definitions for inter prediction interpolation.
|
|
@*
|
|
@* @author
|
|
@* Ittaim
|
|
@*
|
|
@* @par List of Functions:
|
|
@*
|
|
@* - ih264_inter_pred_chroma_a9q()
|
|
@*
|
|
@* @remarks
|
|
@* None
|
|
@*
|
|
@*******************************************************************************
|
|
@*
|
|
|
|
@* All the functions here are replicated from ih264_inter_pred_filters.c
|
|
@
|
|
|
|
@**
|
|
@**
|
|
@**
|
|
@
|
|
@**
|
|
@*******************************************************************************
|
|
@*
|
|
@* @brief
|
|
@* Interprediction chroma filter
|
|
@*
|
|
@* @par Description:
|
|
@* Applies filtering to chroma samples as mentioned in
|
|
@* sec 8.4.2.2.2 titled "chroma sample interpolation process"
|
|
@*
|
|
@* @param[in] pu1_src
|
|
@* UWORD8 pointer to the source containing alternate U and V samples
|
|
@*
|
|
@* @param[out] pu1_dst
|
|
@* UWORD8 pointer to the destination
|
|
@*
|
|
@* @param[in] src_strd
|
|
@* integer source stride
|
|
@*
|
|
@* @param[in] dst_strd
|
|
@* integer destination stride
|
|
@*
|
|
@* @param[in]uc_dx
|
|
@* dx value where the sample is to be produced(refer sec 8.4.2.2.2 )
|
|
@*
|
|
@* @param[in] uc_dy
|
|
@* dy value where the sample is to be produced(refer sec 8.4.2.2.2 )
|
|
@*
|
|
@* @param[in] ht
|
|
@* integer height of the array
|
|
@*
|
|
@* @param[in] wd
|
|
@* integer width of the array
|
|
@*
|
|
@* @returns
|
|
@*
|
|
@* @remarks
|
|
@* None
|
|
@*
|
|
@*******************************************************************************
|
|
@*
|
|
|
|
@void ih264_inter_pred_chroma(UWORD8 *pu1_src,
|
|
@ UWORD8 *pu1_dst,
|
|
@ WORD32 src_strd,
|
|
@ WORD32 dst_strd,
|
|
@ WORD32 u1_dx,
|
|
@ WORD32 u1_dy,
|
|
@ WORD32 ht,
|
|
@ WORD32 wd)
|
|
@**************Variables Vs Registers*****************************************
|
|
@ r0 => *pu1_src
|
|
@ r1 => *pu1_dst
|
|
@ r2 => src_strd
|
|
@ r3 => dst_strd
|
|
@ r4 => u1_dx
|
|
@ r5 => u1_dy
|
|
@ r6 => height
|
|
@ r7 => width
|
|
@
|
|
.text
|
|
.p2align 2
|
|
|
|
.global ih264_inter_pred_chroma_a9q
|
|
|
|
ih264_inter_pred_chroma_a9q:
|
|
|
|
stmfd sp!, {r4-r12, r14} @store register values to stack
|
|
vstmdb sp!, {d8-d15} @push neon registers to stack
|
|
ldr r4, [sp, #104]
|
|
ldr r5, [sp, #108]
|
|
ldr r6, [sp, #112]
|
|
ldr r7, [sp, #116]
|
|
|
|
rsb r8, r4, #8 @8-u1_dx
|
|
rsb r9, r5, #8 @8-u1_dy
|
|
mul r10, r8, r9
|
|
mul r11, r4, r9
|
|
|
|
vdup.u8 d28, r10
|
|
vdup.u8 d29, r11
|
|
|
|
mul r10, r8, r5
|
|
mul r11, r4, r5
|
|
|
|
vdup.u8 d30, r10
|
|
vdup.u8 d31, r11
|
|
|
|
subs r12, r7, #2 @if wd=4 branch to loop_4
|
|
beq loop_2
|
|
subs r12, r7, #4 @if wd=8 branch to loop_8
|
|
beq loop_4
|
|
|
|
loop_8:
|
|
sub r6, #1
|
|
vld1.8 {d0, d1, d2}, [r0], r2 @ Load row0
|
|
vld1.8 {d5, d6, d7}, [r0], r2 @ Load row1
|
|
vext.8 d3, d0, d1, #2
|
|
vext.8 d8, d5, d6, #2
|
|
|
|
vmull.u8 q5, d0, d28
|
|
vmlal.u8 q5, d5, d30
|
|
vmlal.u8 q5, d3, d29
|
|
vmlal.u8 q5, d8, d31
|
|
vext.8 d9, d6, d7, #2
|
|
vext.8 d4, d1, d2, #2
|
|
|
|
inner_loop_8:
|
|
vmull.u8 q6, d6, d30
|
|
vmlal.u8 q6, d1, d28
|
|
vmlal.u8 q6, d9, d31
|
|
vmlal.u8 q6, d4, d29
|
|
vmov d0, d5
|
|
vmov d3, d8
|
|
|
|
vqrshrun.s16 d14, q5, #6
|
|
vmov d1, d6
|
|
vmov d4, d9
|
|
|
|
vld1.8 {d5, d6, d7}, [r0], r2 @ Load row1
|
|
vqrshrun.s16 d15, q6, #6
|
|
|
|
vext.8 d8, d5, d6, #2
|
|
subs r6, #1
|
|
vext.8 d9, d6, d7, #2
|
|
vst1.8 {q7}, [r1], r3 @ Store dest row
|
|
|
|
vmull.u8 q5, d0, d28
|
|
vmlal.u8 q5, d5, d30
|
|
vmlal.u8 q5, d3, d29
|
|
vmlal.u8 q5, d8, d31
|
|
bne inner_loop_8
|
|
|
|
vmull.u8 q6, d6, d30
|
|
vmlal.u8 q6, d1, d28
|
|
vmlal.u8 q6, d9, d31
|
|
vmlal.u8 q6, d4, d29
|
|
|
|
vqrshrun.s16 d14, q5, #6
|
|
vqrshrun.s16 d15, q6, #6
|
|
|
|
vst1.8 {q7}, [r1], r3 @ Store dest row
|
|
|
|
b end_func
|
|
|
|
loop_4:
|
|
sub r6, #1
|
|
vld1.8 {d0, d1}, [r0], r2 @ Load row0
|
|
vld1.8 {d2, d3}, [r0], r2 @ Load row1
|
|
vext.8 d1, d0, d1, #2
|
|
vext.8 d3, d2, d3, #2
|
|
|
|
vmull.u8 q2, d2, d30
|
|
vmlal.u8 q2, d0, d28
|
|
vmlal.u8 q2, d3, d31
|
|
vmlal.u8 q2, d1, d29
|
|
|
|
inner_loop_4:
|
|
subs r6, #1
|
|
vmov d0, d2
|
|
vmov d1, d3
|
|
|
|
vld1.8 {d2, d3}, [r0], r2 @ Load row1
|
|
vqrshrun.s16 d6, q2, #6
|
|
|
|
vext.8 d3, d2, d3, #2
|
|
vst1.8 {d6}, [r1], r3 @ Store dest row
|
|
|
|
vmull.u8 q2, d0, d28
|
|
vmlal.u8 q2, d2, d30
|
|
vmlal.u8 q2, d1, d29
|
|
vmlal.u8 q2, d3, d31
|
|
bne inner_loop_4
|
|
|
|
vqrshrun.s16 d6, q2, #6
|
|
vst1.8 {d6}, [r1], r3 @ Store dest row
|
|
|
|
b end_func
|
|
|
|
loop_2:
|
|
vld1.8 {d0}, [r0], r2 @ Load row0
|
|
vext.8 d1, d0, d0, #2
|
|
vld1.8 {d2}, [r0], r2 @ Load row1
|
|
vext.8 d3, d2, d2, #2
|
|
vmull.u8 q2, d0, d28
|
|
vmlal.u8 q2, d1, d29
|
|
vmlal.u8 q2, d2, d30
|
|
vmlal.u8 q2, d3, d31
|
|
vld1.8 {d6}, [r0] @ Load row2
|
|
vqrshrun.s16 d4, q2, #6
|
|
vext.8 d7, d6, d6, #2
|
|
vst1.32 d4[0], [r1], r3 @ Store dest row0
|
|
vmull.u8 q4, d2, d28
|
|
vmlal.u8 q4, d3, d29
|
|
vmlal.u8 q4, d6, d30
|
|
vmlal.u8 q4, d7, d31
|
|
subs r6, #2
|
|
vqrshrun.s16 d8, q4, #6
|
|
vst1.32 d8[0], [r1], r3 @ Store dest row1
|
|
bne loop_2 @ repeat if ht=2
|
|
|
|
end_func:
|
|
vldmia sp!, {d8-d15} @ Restore neon registers that were saved
|
|
ldmfd sp!, {r4-r12, pc} @ Restoring registers from stack
|
|
|