585 lines
14 KiB
NASM
585 lines
14 KiB
NASM
;
|
|
; 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_build_intra_predictors_mby_neon_func|
|
|
EXPORT |vp8_build_intra_predictors_mby_s_neon_func|
|
|
|
|
ARM
|
|
REQUIRE8
|
|
PRESERVE8
|
|
|
|
AREA ||.text||, CODE, READONLY, ALIGN=2
|
|
; r0 unsigned char *y_buffer
|
|
; r1 unsigned char *ypred_ptr
|
|
; r2 int y_stride
|
|
; r3 int mode
|
|
; stack int Up
|
|
; stack int Left
|
|
|
|
|vp8_build_intra_predictors_mby_neon_func| PROC
|
|
push {r4-r8, lr}
|
|
|
|
cmp r3, #0
|
|
beq case_dc_pred
|
|
cmp r3, #1
|
|
beq case_v_pred
|
|
cmp r3, #2
|
|
beq case_h_pred
|
|
cmp r3, #3
|
|
beq case_tm_pred
|
|
|
|
case_dc_pred
|
|
ldr r4, [sp, #24] ; Up
|
|
ldr r5, [sp, #28] ; Left
|
|
|
|
; Default the DC average to 128
|
|
mov r12, #128
|
|
vdup.u8 q0, r12
|
|
|
|
; Zero out running sum
|
|
mov r12, #0
|
|
|
|
; compute shift and jump
|
|
adds r7, r4, r5
|
|
beq skip_dc_pred_up_left
|
|
|
|
; Load above row, if it exists
|
|
cmp r4, #0
|
|
beq skip_dc_pred_up
|
|
|
|
sub r6, r0, r2
|
|
vld1.8 {q1}, [r6]
|
|
vpaddl.u8 q2, q1
|
|
vpaddl.u16 q3, q2
|
|
vpaddl.u32 q4, q3
|
|
|
|
vmov.32 r4, d8[0]
|
|
vmov.32 r6, d9[0]
|
|
|
|
add r12, r4, r6
|
|
|
|
; Move back to interger registers
|
|
|
|
skip_dc_pred_up
|
|
|
|
cmp r5, #0
|
|
beq skip_dc_pred_left
|
|
|
|
sub r0, r0, #1
|
|
|
|
; Load left row, if it exists
|
|
ldrb r3, [r0], r2
|
|
ldrb r4, [r0], r2
|
|
ldrb r5, [r0], r2
|
|
ldrb r6, [r0], r2
|
|
|
|
add r12, r12, r3
|
|
add r12, r12, r4
|
|
add r12, r12, r5
|
|
add r12, r12, r6
|
|
|
|
ldrb r3, [r0], r2
|
|
ldrb r4, [r0], r2
|
|
ldrb r5, [r0], r2
|
|
ldrb r6, [r0], r2
|
|
|
|
add r12, r12, r3
|
|
add r12, r12, r4
|
|
add r12, r12, r5
|
|
add r12, r12, r6
|
|
|
|
ldrb r3, [r0], r2
|
|
ldrb r4, [r0], r2
|
|
ldrb r5, [r0], r2
|
|
ldrb r6, [r0], r2
|
|
|
|
add r12, r12, r3
|
|
add r12, r12, r4
|
|
add r12, r12, r5
|
|
add r12, r12, r6
|
|
|
|
ldrb r3, [r0], r2
|
|
ldrb r4, [r0], r2
|
|
ldrb r5, [r0], r2
|
|
ldrb r6, [r0]
|
|
|
|
add r12, r12, r3
|
|
add r12, r12, r4
|
|
add r12, r12, r5
|
|
add r12, r12, r6
|
|
|
|
skip_dc_pred_left
|
|
add r7, r7, #3 ; Shift
|
|
sub r4, r7, #1
|
|
mov r5, #1
|
|
add r12, r12, r5, lsl r4
|
|
mov r5, r12, lsr r7 ; expected_dc
|
|
|
|
vdup.u8 q0, r5
|
|
|
|
skip_dc_pred_up_left
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
|
|
pop {r4-r8,pc}
|
|
case_v_pred
|
|
; Copy down above row
|
|
sub r6, r0, r2
|
|
vld1.8 {q0}, [r6]
|
|
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q0}, [r1]!
|
|
pop {r4-r8,pc}
|
|
|
|
case_h_pred
|
|
; Load 4x yleft_col
|
|
sub r0, r0, #1
|
|
|
|
ldrb r3, [r0], r2
|
|
ldrb r4, [r0], r2
|
|
ldrb r5, [r0], r2
|
|
ldrb r6, [r0], r2
|
|
vdup.u8 q0, r3
|
|
vdup.u8 q1, r4
|
|
vdup.u8 q2, r5
|
|
vdup.u8 q3, r6
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q1}, [r1]!
|
|
vst1.u8 {q2}, [r1]!
|
|
vst1.u8 {q3}, [r1]!
|
|
|
|
ldrb r3, [r0], r2
|
|
ldrb r4, [r0], r2
|
|
ldrb r5, [r0], r2
|
|
ldrb r6, [r0], r2
|
|
vdup.u8 q0, r3
|
|
vdup.u8 q1, r4
|
|
vdup.u8 q2, r5
|
|
vdup.u8 q3, r6
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q1}, [r1]!
|
|
vst1.u8 {q2}, [r1]!
|
|
vst1.u8 {q3}, [r1]!
|
|
|
|
|
|
ldrb r3, [r0], r2
|
|
ldrb r4, [r0], r2
|
|
ldrb r5, [r0], r2
|
|
ldrb r6, [r0], r2
|
|
vdup.u8 q0, r3
|
|
vdup.u8 q1, r4
|
|
vdup.u8 q2, r5
|
|
vdup.u8 q3, r6
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q1}, [r1]!
|
|
vst1.u8 {q2}, [r1]!
|
|
vst1.u8 {q3}, [r1]!
|
|
|
|
ldrb r3, [r0], r2
|
|
ldrb r4, [r0], r2
|
|
ldrb r5, [r0], r2
|
|
ldrb r6, [r0], r2
|
|
vdup.u8 q0, r3
|
|
vdup.u8 q1, r4
|
|
vdup.u8 q2, r5
|
|
vdup.u8 q3, r6
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q1}, [r1]!
|
|
vst1.u8 {q2}, [r1]!
|
|
vst1.u8 {q3}, [r1]!
|
|
|
|
pop {r4-r8,pc}
|
|
|
|
case_tm_pred
|
|
; Load yabove_row
|
|
sub r3, r0, r2
|
|
vld1.8 {q8}, [r3]
|
|
|
|
; Load ytop_left
|
|
sub r3, r3, #1
|
|
ldrb r7, [r3]
|
|
|
|
vdup.u16 q7, r7
|
|
|
|
; Compute yabove_row - ytop_left
|
|
mov r3, #1
|
|
vdup.u8 q0, r3
|
|
|
|
vmull.u8 q4, d16, d0
|
|
vmull.u8 q5, d17, d0
|
|
|
|
vsub.s16 q4, q4, q7
|
|
vsub.s16 q5, q5, q7
|
|
|
|
; Load 4x yleft_col
|
|
sub r0, r0, #1
|
|
mov r12, #4
|
|
|
|
case_tm_pred_loop
|
|
ldrb r3, [r0], r2
|
|
ldrb r4, [r0], r2
|
|
ldrb r5, [r0], r2
|
|
ldrb r6, [r0], r2
|
|
vdup.u16 q0, r3
|
|
vdup.u16 q1, r4
|
|
vdup.u16 q2, r5
|
|
vdup.u16 q3, r6
|
|
|
|
vqadd.s16 q8, q0, q4
|
|
vqadd.s16 q9, q0, q5
|
|
|
|
vqadd.s16 q10, q1, q4
|
|
vqadd.s16 q11, q1, q5
|
|
|
|
vqadd.s16 q12, q2, q4
|
|
vqadd.s16 q13, q2, q5
|
|
|
|
vqadd.s16 q14, q3, q4
|
|
vqadd.s16 q15, q3, q5
|
|
|
|
vqshrun.s16 d0, q8, #0
|
|
vqshrun.s16 d1, q9, #0
|
|
|
|
vqshrun.s16 d2, q10, #0
|
|
vqshrun.s16 d3, q11, #0
|
|
|
|
vqshrun.s16 d4, q12, #0
|
|
vqshrun.s16 d5, q13, #0
|
|
|
|
vqshrun.s16 d6, q14, #0
|
|
vqshrun.s16 d7, q15, #0
|
|
|
|
vst1.u8 {q0}, [r1]!
|
|
vst1.u8 {q1}, [r1]!
|
|
vst1.u8 {q2}, [r1]!
|
|
vst1.u8 {q3}, [r1]!
|
|
|
|
subs r12, r12, #1
|
|
bne case_tm_pred_loop
|
|
|
|
pop {r4-r8,pc}
|
|
|
|
ENDP
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
; r0 unsigned char *y_buffer
|
|
; r1 unsigned char *ypred_ptr
|
|
; r2 int y_stride
|
|
; r3 int mode
|
|
; stack int Up
|
|
; stack int Left
|
|
|
|
|vp8_build_intra_predictors_mby_s_neon_func| PROC
|
|
push {r4-r8, lr}
|
|
|
|
mov r1, r0 ; unsigned char *ypred_ptr = x->dst.y_buffer; //x->Predictor;
|
|
|
|
cmp r3, #0
|
|
beq case_dc_pred_s
|
|
cmp r3, #1
|
|
beq case_v_pred_s
|
|
cmp r3, #2
|
|
beq case_h_pred_s
|
|
cmp r3, #3
|
|
beq case_tm_pred_s
|
|
|
|
case_dc_pred_s
|
|
ldr r4, [sp, #24] ; Up
|
|
ldr r5, [sp, #28] ; Left
|
|
|
|
; Default the DC average to 128
|
|
mov r12, #128
|
|
vdup.u8 q0, r12
|
|
|
|
; Zero out running sum
|
|
mov r12, #0
|
|
|
|
; compute shift and jump
|
|
adds r7, r4, r5
|
|
beq skip_dc_pred_up_left_s
|
|
|
|
; Load above row, if it exists
|
|
cmp r4, #0
|
|
beq skip_dc_pred_up_s
|
|
|
|
sub r6, r0, r2
|
|
vld1.8 {q1}, [r6]
|
|
vpaddl.u8 q2, q1
|
|
vpaddl.u16 q3, q2
|
|
vpaddl.u32 q4, q3
|
|
|
|
vmov.32 r4, d8[0]
|
|
vmov.32 r6, d9[0]
|
|
|
|
add r12, r4, r6
|
|
|
|
; Move back to interger registers
|
|
|
|
skip_dc_pred_up_s
|
|
|
|
cmp r5, #0
|
|
beq skip_dc_pred_left_s
|
|
|
|
sub r0, r0, #1
|
|
|
|
; Load left row, if it exists
|
|
ldrb r3, [r0], r2
|
|
ldrb r4, [r0], r2
|
|
ldrb r5, [r0], r2
|
|
ldrb r6, [r0], r2
|
|
|
|
add r12, r12, r3
|
|
add r12, r12, r4
|
|
add r12, r12, r5
|
|
add r12, r12, r6
|
|
|
|
ldrb r3, [r0], r2
|
|
ldrb r4, [r0], r2
|
|
ldrb r5, [r0], r2
|
|
ldrb r6, [r0], r2
|
|
|
|
add r12, r12, r3
|
|
add r12, r12, r4
|
|
add r12, r12, r5
|
|
add r12, r12, r6
|
|
|
|
ldrb r3, [r0], r2
|
|
ldrb r4, [r0], r2
|
|
ldrb r5, [r0], r2
|
|
ldrb r6, [r0], r2
|
|
|
|
add r12, r12, r3
|
|
add r12, r12, r4
|
|
add r12, r12, r5
|
|
add r12, r12, r6
|
|
|
|
ldrb r3, [r0], r2
|
|
ldrb r4, [r0], r2
|
|
ldrb r5, [r0], r2
|
|
ldrb r6, [r0]
|
|
|
|
add r12, r12, r3
|
|
add r12, r12, r4
|
|
add r12, r12, r5
|
|
add r12, r12, r6
|
|
|
|
skip_dc_pred_left_s
|
|
add r7, r7, #3 ; Shift
|
|
sub r4, r7, #1
|
|
mov r5, #1
|
|
add r12, r12, r5, lsl r4
|
|
mov r5, r12, lsr r7 ; expected_dc
|
|
|
|
vdup.u8 q0, r5
|
|
|
|
skip_dc_pred_up_left_s
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
|
|
pop {r4-r8,pc}
|
|
case_v_pred_s
|
|
; Copy down above row
|
|
sub r6, r0, r2
|
|
vld1.8 {q0}, [r6]
|
|
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q0}, [r1], r2
|
|
pop {r4-r8,pc}
|
|
|
|
case_h_pred_s
|
|
; Load 4x yleft_col
|
|
sub r0, r0, #1
|
|
|
|
ldrb r3, [r0], r2
|
|
ldrb r4, [r0], r2
|
|
ldrb r5, [r0], r2
|
|
ldrb r6, [r0], r2
|
|
vdup.u8 q0, r3
|
|
vdup.u8 q1, r4
|
|
vdup.u8 q2, r5
|
|
vdup.u8 q3, r6
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q1}, [r1], r2
|
|
vst1.u8 {q2}, [r1], r2
|
|
vst1.u8 {q3}, [r1], r2
|
|
|
|
ldrb r3, [r0], r2
|
|
ldrb r4, [r0], r2
|
|
ldrb r5, [r0], r2
|
|
ldrb r6, [r0], r2
|
|
vdup.u8 q0, r3
|
|
vdup.u8 q1, r4
|
|
vdup.u8 q2, r5
|
|
vdup.u8 q3, r6
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q1}, [r1], r2
|
|
vst1.u8 {q2}, [r1], r2
|
|
vst1.u8 {q3}, [r1], r2
|
|
|
|
|
|
ldrb r3, [r0], r2
|
|
ldrb r4, [r0], r2
|
|
ldrb r5, [r0], r2
|
|
ldrb r6, [r0], r2
|
|
vdup.u8 q0, r3
|
|
vdup.u8 q1, r4
|
|
vdup.u8 q2, r5
|
|
vdup.u8 q3, r6
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q1}, [r1], r2
|
|
vst1.u8 {q2}, [r1], r2
|
|
vst1.u8 {q3}, [r1], r2
|
|
|
|
ldrb r3, [r0], r2
|
|
ldrb r4, [r0], r2
|
|
ldrb r5, [r0], r2
|
|
ldrb r6, [r0], r2
|
|
vdup.u8 q0, r3
|
|
vdup.u8 q1, r4
|
|
vdup.u8 q2, r5
|
|
vdup.u8 q3, r6
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q1}, [r1], r2
|
|
vst1.u8 {q2}, [r1], r2
|
|
vst1.u8 {q3}, [r1], r2
|
|
|
|
pop {r4-r8,pc}
|
|
|
|
case_tm_pred_s
|
|
; Load yabove_row
|
|
sub r3, r0, r2
|
|
vld1.8 {q8}, [r3]
|
|
|
|
; Load ytop_left
|
|
sub r3, r3, #1
|
|
ldrb r7, [r3]
|
|
|
|
vdup.u16 q7, r7
|
|
|
|
; Compute yabove_row - ytop_left
|
|
mov r3, #1
|
|
vdup.u8 q0, r3
|
|
|
|
vmull.u8 q4, d16, d0
|
|
vmull.u8 q5, d17, d0
|
|
|
|
vsub.s16 q4, q4, q7
|
|
vsub.s16 q5, q5, q7
|
|
|
|
; Load 4x yleft_col
|
|
sub r0, r0, #1
|
|
mov r12, #4
|
|
|
|
case_tm_pred_loop_s
|
|
ldrb r3, [r0], r2
|
|
ldrb r4, [r0], r2
|
|
ldrb r5, [r0], r2
|
|
ldrb r6, [r0], r2
|
|
vdup.u16 q0, r3
|
|
vdup.u16 q1, r4
|
|
vdup.u16 q2, r5
|
|
vdup.u16 q3, r6
|
|
|
|
vqadd.s16 q8, q0, q4
|
|
vqadd.s16 q9, q0, q5
|
|
|
|
vqadd.s16 q10, q1, q4
|
|
vqadd.s16 q11, q1, q5
|
|
|
|
vqadd.s16 q12, q2, q4
|
|
vqadd.s16 q13, q2, q5
|
|
|
|
vqadd.s16 q14, q3, q4
|
|
vqadd.s16 q15, q3, q5
|
|
|
|
vqshrun.s16 d0, q8, #0
|
|
vqshrun.s16 d1, q9, #0
|
|
|
|
vqshrun.s16 d2, q10, #0
|
|
vqshrun.s16 d3, q11, #0
|
|
|
|
vqshrun.s16 d4, q12, #0
|
|
vqshrun.s16 d5, q13, #0
|
|
|
|
vqshrun.s16 d6, q14, #0
|
|
vqshrun.s16 d7, q15, #0
|
|
|
|
vst1.u8 {q0}, [r1], r2
|
|
vst1.u8 {q1}, [r1], r2
|
|
vst1.u8 {q2}, [r1], r2
|
|
vst1.u8 {q3}, [r1], r2
|
|
|
|
subs r12, r12, #1
|
|
bne case_tm_pred_loop_s
|
|
|
|
pop {r4-r8,pc}
|
|
|
|
ENDP
|
|
|
|
|
|
END
|