ref: a579cb8f538002be9e65bd9c2f43782d28d89282
dir: /src/arm/32/ipred.S/
/*
* Copyright © 2018, VideoLAN and dav1d authors
* Copyright © 2020, Martin Storsjo
* Copyright © 2019, B Krishnan Iyer
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. 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 OWNER 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.
*/
#include "src/arm/asm.S"
#include "util.S"
// void ipred_dc_128_8bpc_neon(pixel *dst, const ptrdiff_t stride,
// const pixel *const topleft,
// const int width, const int height, const int a,
// const int max_width, const int max_height);
function ipred_dc_128_8bpc_neon, export=1
push {r4, lr}
ldr r4, [sp, #8]
clz r3, r3
adr r2, L(ipred_dc_128_tbl)
sub r3, r3, #25
ldr r3, [r2, r3, lsl #2]
mov lr, #128
vdup.8 q0, lr
add r2, r2, r3
add r12, r0, r1
lsl r1, r1, #1
bx r2
.align 2
L(ipred_dc_128_tbl):
.word 640f - L(ipred_dc_128_tbl) + CONFIG_THUMB
.word 320f - L(ipred_dc_128_tbl) + CONFIG_THUMB
.word 16f - L(ipred_dc_128_tbl) + CONFIG_THUMB
.word 8f - L(ipred_dc_128_tbl) + CONFIG_THUMB
.word 4f - L(ipred_dc_128_tbl) + CONFIG_THUMB
4:
vst1.32 {d0[0]}, [r0, :32], r1
vst1.32 {d0[0]}, [r12, :32], r1
subs r4, r4, #4
vst1.32 {d0[0]}, [r0, :32], r1
vst1.32 {d0[0]}, [r12, :32], r1
bgt 4b
pop {r4, pc}
8:
vst1.8 {d0}, [r0, :64], r1
vst1.8 {d0}, [r12, :64], r1
subs r4, r4, #4
vst1.8 {d0}, [r0, :64], r1
vst1.8 {d0}, [r12, :64], r1
bgt 8b
pop {r4, pc}
16:
vst1.8 {d0, d1}, [r0, :128], r1
vst1.8 {d0, d1}, [r12, :128], r1
subs r4, r4, #4
vst1.8 {d0, d1}, [r0, :128], r1
vst1.8 {d0, d1}, [r12, :128], r1
bgt 16b
pop {r4, pc}
320:
vdup.8 q1, lr
32:
vst1.8 {d0, d1, d2, d3}, [r0, :128], r1
vst1.8 {d0, d1, d2, d3}, [r12, :128], r1
subs r4, r4, #4
vst1.8 {d0, d1, d2, d3}, [r0, :128], r1
vst1.8 {d0, d1, d2, d3}, [r12, :128], r1
bgt 32b
pop {r4, pc}
640:
vdup.8 q1, lr
vdup.8 q2, lr
vdup.8 q3, lr
sub r1, r1, #32
64:
vst1.8 {d0, d1, d2, d3}, [r0, :128]!
vst1.8 {d0, d1, d2, d3}, [r12, :128]!
vst1.8 {d4, d5, d6, d7}, [r0, :128], r1
vst1.8 {d4, d5, d6, d7}, [r12, :128], r1
subs r4, r4, #4
vst1.8 {d0, d1, d2, d3}, [r0, :128]!
vst1.8 {d0, d1, d2, d3}, [r12, :128]!
vst1.8 {d4, d5, d6, d7}, [r0, :128], r1
vst1.8 {d4, d5, d6, d7}, [r12, :128], r1
bgt 64b
pop {r4, pc}
endfunc
// void ipred_v_8bpc_neon(pixel *dst, const ptrdiff_t stride,
// const pixel *const topleft,
// const int width, const int height, const int a,
// const int max_width, const int max_height);
function ipred_v_8bpc_neon, export=1
push {r4, lr}
ldr lr, [sp, #8]
clz r3, r3
adr r4, L(ipred_v_tbl)
sub r3, r3, #25
ldr r3, [r4, r3, lsl #2]
add r2, r2, #1
add r4, r4, r3
add r12, r0, r1
lsl r1, r1, #1
bx r4
.align 2
L(ipred_v_tbl):
.word 640f - L(ipred_v_tbl) + CONFIG_THUMB
.word 320f - L(ipred_v_tbl) + CONFIG_THUMB
.word 160f - L(ipred_v_tbl) + CONFIG_THUMB
.word 80f - L(ipred_v_tbl) + CONFIG_THUMB
.word 40f - L(ipred_v_tbl) + CONFIG_THUMB
40:
vld1.32 {d0[]}, [r2]
4:
vst1.32 {d0[0]}, [r0, :32], r1
vst1.32 {d0[0]}, [r12, :32], r1
subs lr, lr, #4
vst1.32 {d0[0]}, [r0, :32], r1
vst1.32 {d0[0]}, [r12, :32], r1
bgt 4b
pop {r4, pc}
80:
vld1.8 {d0}, [r2]
8:
vst1.8 {d0}, [r0, :64], r1
vst1.8 {d0}, [r12, :64], r1
subs lr, lr, #4
vst1.8 {d0}, [r0, :64], r1
vst1.8 {d0}, [r12, :64], r1
bgt 8b
pop {r4, pc}
160:
vld1.8 {q0}, [r2]
16:
vst1.8 {d0, d1}, [r0, :128], r1
vst1.8 {d0, d1}, [r12, :128], r1
subs lr, lr, #4
vst1.8 {d0, d1}, [r0, :128], r1
vst1.8 {d0, d1}, [r12, :128], r1
bgt 16b
pop {r4, pc}
320:
vld1.8 {q0, q1}, [r2]
32:
vst1.8 {d0, d1, d2, d3}, [r0, :128], r1
vst1.8 {d0, d1, d2, d3}, [r12, :128], r1
subs lr, lr, #4
vst1.8 {d0, d1, d2, d3}, [r0, :128], r1
vst1.8 {d0, d1, d2, d3}, [r12, :128], r1
bgt 32b
pop {r4, pc}
640:
vld1.8 {q0, q1}, [r2]!
sub r1, r1, #32
vld1.8 {q2, q3}, [r2]
64:
vst1.8 {d0, d1, d2, d3}, [r0, :128]!
vst1.8 {d0, d1, d2, d3}, [r12, :128]!
vst1.8 {d4, d5, d6, d7}, [r0, :128], r1
vst1.8 {d4, d5, d6, d7}, [r12, :128], r1
subs lr, lr, #4
vst1.8 {d0, d1, d2, d3}, [r0, :128]!
vst1.8 {d0, d1, d2, d3}, [r12, :128]!
vst1.8 {d4, d5, d6, d7}, [r0, :128], r1
vst1.8 {d4, d5, d6, d7}, [r12, :128], r1
bgt 64b
pop {r4, pc}
endfunc
// void ipred_h_8bpc_neon(pixel *dst, const ptrdiff_t stride,
// const pixel *const topleft,
// const int width, const int height, const int a,
// const int max_width, const int max_height);
function ipred_h_8bpc_neon, export=1
push {r4-r5, lr}
ldr r4, [sp, #12]
clz r3, r3
adr r5, L(ipred_h_tbl)
sub r3, r3, #25
ldr r3, [r5, r3, lsl #2]
sub r2, r2, #4
mov lr, #-4
add r5, r5, r3
add r12, r0, r1
lsl r1, r1, #1
bx r5
.align 2
L(ipred_h_tbl):
.word 640f - L(ipred_h_tbl) + CONFIG_THUMB
.word 320f - L(ipred_h_tbl) + CONFIG_THUMB
.word 160f - L(ipred_h_tbl) + CONFIG_THUMB
.word 8f - L(ipred_h_tbl) + CONFIG_THUMB
.word 4f - L(ipred_h_tbl) + CONFIG_THUMB
4:
vld4.8 {d0[], d1[], d2[], d3[]}, [r2, :32], lr
vst1.32 {d3[0]}, [r0, :32], r1
vst1.32 {d2[0]}, [r12, :32], r1
subs r4, r4, #4
vst1.32 {d1[0]}, [r0, :32], r1
vst1.32 {d0[0]}, [r12, :32], r1
bgt 4b
pop {r4-r5, pc}
8:
vld4.8 {d0[], d1[], d2[], d3[]}, [r2, :32], lr
vst1.8 {d3}, [r0, :64], r1
vst1.8 {d2}, [r12, :64], r1
subs r4, r4, #4
vst1.8 {d1}, [r0, :64], r1
vst1.8 {d0}, [r12, :64], r1
bgt 8b
pop {r4-r5, pc}
160:
add r2, r2, #3
mov lr, #-1
16:
vld1.8 {d0[], d1[]}, [r2], lr
subs r4, r4, #4
vld1.8 {d2[], d3[]}, [r2], lr
vst1.8 {q0}, [r0, :128], r1
vld1.8 {d4[], d5[]}, [r2], lr
vst1.8 {q1}, [r12, :128], r1
vld1.8 {d6[], d7[]}, [r2], lr
vst1.8 {q2}, [r0, :128], r1
vst1.8 {q3}, [r12, :128], r1
bgt 16b
pop {r4-r5, pc}
320:
add r2, r2, #3
mov lr, #-1
sub r1, r1, #16
32:
vld1.8 {d0[], d1[]}, [r2], lr
subs r4, r4, #4
vld1.8 {d2[], d3[]}, [r2], lr
vst1.8 {q0}, [r0, :128]!
vld1.8 {d4[], d5[]}, [r2], lr
vst1.8 {q1}, [r12, :128]!
vld1.8 {d6[], d7[]}, [r2], lr
vst1.8 {q0}, [r0, :128], r1
vst1.8 {q1}, [r12, :128], r1
vst1.8 {q2}, [r0, :128]!
vst1.8 {q3}, [r12, :128]!
vst1.8 {q2}, [r0, :128], r1
vst1.8 {q3}, [r12, :128], r1
bgt 32b
pop {r4-r5, pc}
640:
add r2, r2, #3
mov lr, #-1
sub r1, r1, #48
64:
vld1.8 {d0[], d1[]}, [r2], lr
subs r4, r4, #4
vld1.8 {d2[], d3[]}, [r2], lr
vst1.8 {q0}, [r0, :128]!
vld1.8 {d4[], d5[]}, [r2], lr
vst1.8 {q1}, [r12, :128]!
vld1.8 {d6[], d7[]}, [r2], lr
vst1.8 {q0}, [r0, :128]!
vst1.8 {q1}, [r12, :128]!
vst1.8 {q0}, [r0, :128]!
vst1.8 {q1}, [r12, :128]!
vst1.8 {q0}, [r0, :128], r1
vst1.8 {q1}, [r12, :128], r1
vst1.8 {q2}, [r0, :128]!
vst1.8 {q3}, [r12, :128]!
vst1.8 {q2}, [r0, :128]!
vst1.8 {q3}, [r12, :128]!
vst1.8 {q2}, [r0, :128]!
vst1.8 {q3}, [r12, :128]!
vst1.8 {q2}, [r0, :128], r1
vst1.8 {q3}, [r12, :128], r1
bgt 64b
pop {r4-r5, pc}
endfunc
// void ipred_dc_top_8bpc_neon(pixel *dst, const ptrdiff_t stride,
// const pixel *const topleft,
// const int width, const int height, const int a,
// const int max_width, const int max_height);
function ipred_dc_top_8bpc_neon, export=1
push {r4-r5, lr}
ldr r4, [sp, #12]
clz r3, r3
adr r5, L(ipred_dc_top_tbl)
sub r3, r3, #25
ldr r3, [r5, r3, lsl #2]
add r2, r2, #1
add r5, r5, r3
add r12, r0, r1
lsl r1, r1, #1
bx r5
.align 2
L(ipred_dc_top_tbl):
.word 640f - L(ipred_dc_top_tbl) + CONFIG_THUMB
.word 320f - L(ipred_dc_top_tbl) + CONFIG_THUMB
.word 160f - L(ipred_dc_top_tbl) + CONFIG_THUMB
.word 80f - L(ipred_dc_top_tbl) + CONFIG_THUMB
.word 40f - L(ipred_dc_top_tbl) + CONFIG_THUMB
40:
vld1.32 {d0[]}, [r2]
vpaddl.u8 d0, d0
vpadd.u16 d0, d0
vrshrn.u16 d0, q0, #2
vdup.8 d0, d0[0]
4:
vst1.32 {d0[0]}, [r0, :32], r1
vst1.32 {d0[0]}, [r12, :32], r1
subs r4, r4, #4
vst1.32 {d0[0]}, [r0, :32], r1
vst1.32 {d0[0]}, [r12, :32], r1
bgt 4b
pop {r4-r5, pc}
80:
vld1.8 {d0}, [r2]
vpaddl.u8 d0, d0
vpadd.u16 d0, d0
vpadd.u16 d0, d0
vrshrn.u16 d0, q0, #3
vdup.8 d0, d0[0]
8:
vst1.8 {d0}, [r0, :64], r1
vst1.8 {d0}, [r12, :64], r1
subs r4, r4, #4
vst1.8 {d0}, [r0, :64], r1
vst1.8 {d0}, [r12, :64], r1
bgt 8b
pop {r4-r5, pc}
160:
vld1.8 {d0, d1}, [r2]
vaddl.u8 q0, d0, d1
vadd.u16 d0, d0, d1
vpadd.u16 d0, d0
vpadd.u16 d0, d0
vrshrn.u16 d0, q0, #4
vdup.8 q0, d0[0]
16:
vst1.8 {d0, d1}, [r0, :128], r1
vst1.8 {d0, d1}, [r12, :128], r1
subs r4, r4, #4
vst1.8 {d0, d1}, [r0, :128], r1
vst1.8 {d0, d1}, [r12, :128], r1
bgt 16b
pop {r4-r5, pc}
320:
vld1.8 {d0, d1, d2, d3}, [r2]
vaddl.u8 q0, d0, d1
vaddl.u8 q1, d2, d3
vadd.u16 q0, q0, q1
vadd.u16 d0, d0, d1
vpadd.u16 d0, d0
vpadd.u16 d0, d0
vrshrn.u16 d4, q0, #5
vdup.8 q0, d4[0]
vdup.8 q1, d4[0]
32:
vst1.8 {d0, d1, d2, d3}, [r0, :128], r1
vst1.8 {d0, d1, d2, d3}, [r12, :128], r1
subs r4, r4, #4
vst1.8 {d0, d1, d2, d3}, [r0, :128], r1
vst1.8 {d0, d1, d2, d3}, [r12, :128], r1
bgt 32b
pop {r4-r5, pc}
640:
vld1.8 {d0, d1, d2, d3}, [r2]!
vaddl.u8 q0, d0, d1
vld1.8 {d4, d5, d6, d7}, [r2]
vaddl.u8 q1, d2, d3
vaddl.u8 q2, d4, d5
vaddl.u8 q3, d6, d7
vadd.u16 q0, q0, q1
vadd.u16 q1, q2, q3
vadd.u16 q0, q0, q1
vadd.u16 d0, d0, d1
vpadd.u16 d0, d0
vpadd.u16 d0, d0
vrshrn.u16 d18, q0, #6
vdup.8 q0, d18[0]
vdup.8 q1, d18[0]
vdup.8 q2, d18[0]
vdup.8 q3, d18[0]
sub r1, r1, #32
64:
vst1.8 {d0, d1, d2, d3}, [r0, :128]!
vst1.8 {d0, d1, d2, d3}, [r12, :128]!
vst1.8 {d4, d5, d6, d7}, [r0, :128], r1
vst1.8 {d4, d5, d6, d7}, [r12, :128], r1
subs r4, r4, #4
vst1.8 {d0, d1, d2, d3}, [r0, :128]!
vst1.8 {d0, d1, d2, d3}, [r12, :128]!
vst1.8 {d4, d5, d6, d7}, [r0, :128], r1
vst1.8 {d4, d5, d6, d7}, [r12, :128], r1
bgt 64b
pop {r4-r5, pc}
endfunc
// void ipred_dc_left_8bpc_neon(pixel *dst, const ptrdiff_t stride,
// const pixel *const topleft,
// const int width, const int height, const int a,
// const int max_width, const int max_height);
function ipred_dc_left_8bpc_neon, export=1
push {r4-r5, lr}
ldr r4, [sp, #12]
sub r2, r2, r4
clz r3, r3
clz lr, r4
sub lr, lr, #25
adr r5, L(ipred_dc_left_tbl)
sub r3, r3, #20
ldr r3, [r5, r3, lsl #2]
ldr lr, [r5, lr, lsl #2]
add r3, r5, r3
add r5, r5, lr
add r12, r0, r1
lsl r1, r1, #1
bx r5
.align 2
L(ipred_dc_left_tbl):
.word L(ipred_dc_left_h64) - L(ipred_dc_left_tbl) + CONFIG_THUMB
.word L(ipred_dc_left_h32) - L(ipred_dc_left_tbl) + CONFIG_THUMB
.word L(ipred_dc_left_h16) - L(ipred_dc_left_tbl) + CONFIG_THUMB
.word L(ipred_dc_left_h8) - L(ipred_dc_left_tbl) + CONFIG_THUMB
.word L(ipred_dc_left_h4) - L(ipred_dc_left_tbl) + CONFIG_THUMB
.word L(ipred_dc_left_w64) - L(ipred_dc_left_tbl) + CONFIG_THUMB
.word L(ipred_dc_left_w32) - L(ipred_dc_left_tbl) + CONFIG_THUMB
.word L(ipred_dc_left_w16) - L(ipred_dc_left_tbl) + CONFIG_THUMB
.word L(ipred_dc_left_w8) - L(ipred_dc_left_tbl) + CONFIG_THUMB
.word L(ipred_dc_left_w4) - L(ipred_dc_left_tbl) + CONFIG_THUMB
L(ipred_dc_left_h4):
vld1.32 {d0[]}, [r2, :32]
vpaddl.u8 d0, d0
vpadd.u16 d0, d0
vrshrn.u16 d0, q0, #2
vdup.8 q0, d0[0]
bx r3
L(ipred_dc_left_w4):
vst1.32 {d0[0]}, [r0, :32], r1
vst1.32 {d0[0]}, [r12, :32], r1
subs r4, r4, #4
vst1.32 {d0[0]}, [r0, :32], r1
vst1.32 {d0[0]}, [r12, :32], r1
bgt L(ipred_dc_left_w4)
pop {r4-r5, pc}
L(ipred_dc_left_h8):
vld1.8 {d0}, [r2, :64]
vpaddl.u8 d0, d0
vpadd.u16 d0, d0
vpadd.u16 d0, d0
vrshrn.u16 d0, q0, #3
vdup.8 q0, d0[0]
bx r3
L(ipred_dc_left_w8):
vst1.8 {d0}, [r0, :64], r1
vst1.8 {d0}, [r12, :64], r1
subs r4, r4, #4
vst1.8 {d0}, [r0, :64], r1
vst1.8 {d0}, [r12, :64], r1
bgt L(ipred_dc_left_w8)
pop {r4-r5, pc}
L(ipred_dc_left_h16):
vld1.8 {d0, d1}, [r2, :128]
vaddl.u8 q0, d0, d1
vadd.u16 d0, d0, d1
vpadd.u16 d0, d0
vpadd.u16 d0, d0
vrshrn.u16 d0, q0, #4
vdup.8 q0, d0[0]
bx r3
L(ipred_dc_left_w16):
vst1.8 {d0, d1}, [r0, :128], r1
vst1.8 {d0, d1}, [r12, :128], r1
subs r4, r4, #4
vst1.8 {d0, d1}, [r0, :128], r1
vst1.8 {d0, d1}, [r12, :128], r1
bgt L(ipred_dc_left_w16)
pop {r4-r5, pc}
L(ipred_dc_left_h32):
vld1.8 {d0, d1, d2, d3}, [r2, :128]
vaddl.u8 q0, d0, d1
vaddl.u8 q1, d2, d3
vadd.u16 q0, q0, q1
vadd.u16 d0, d0, d1
vpadd.u16 d0, d0
vpadd.u16 d0, d0
vrshrn.u16 d0, q0, #5
vdup.8 q0, d0[0]
bx r3
L(ipred_dc_left_w32):
vmov.8 q1, q0
1:
vst1.8 {d0, d1, d2, d3}, [r0, :128], r1
vst1.8 {d0, d1, d2, d3}, [r12, :128], r1
subs r4, r4, #4
vst1.8 {d0, d1, d2, d3}, [r0, :128], r1
vst1.8 {d0, d1, d2, d3}, [r12, :128], r1
bgt 1b
pop {r4-r5, pc}
L(ipred_dc_left_h64):
vld1.8 {d0, d1, d2, d3}, [r2, :128]!
vld1.8 {d4, d5, d6, d7}, [r2, :128]
vaddl.u8 q0, d0, d1
vaddl.u8 q1, d2, d3
vaddl.u8 q2, d4, d5
vaddl.u8 q3, d6, d7
vadd.u16 q0, q0, q1
vadd.u16 q1, q2, q3
vadd.u16 q0, q0, q1
vadd.u16 d0, d0, d1
vpadd.u16 d0, d0
vpadd.u16 d0, d0
vrshrn.u16 d0, q0, #6
vdup.8 q0, d0[0]
bx r3
L(ipred_dc_left_w64):
sub r1, r1, #32
vmov.8 q1, q0
vmov.8 q2, q0
vmov.8 q3, q0
1:
vst1.8 {d0, d1, d2, d3}, [r0, :128]!
vst1.8 {d0, d1, d2, d3}, [r12, :128]!
vst1.8 {d4, d5, d6, d7}, [r0, :128], r1
vst1.8 {d4, d5, d6, d7}, [r12, :128], r1
subs r4, r4, #4
vst1.8 {d0, d1, d2, d3}, [r0, :128]!
vst1.8 {d0, d1, d2, d3}, [r12, :128]!
vst1.8 {d4, d5, d6, d7}, [r0, :128], r1
vst1.8 {d4, d5, d6, d7}, [r12, :128], r1
bgt 1b
pop {r4-r5, pc}
endfunc
// void ipred_dc_8bpc_neon(pixel *dst, const ptrdiff_t stride,
// const pixel *const topleft,
// const int width, const int height, const int a,
// const int max_width, const int max_height);
function ipred_dc_8bpc_neon, export=1
push {r4-r6, lr}
ldr r4, [sp, #16]
sub r2, r2, r4
add lr, r3, r4 // width + height
clz r3, r3
clz r12, r4
vdup.16 q15, lr // width + height
adr r5, L(ipred_dc_tbl)
rbit lr, lr // rbit(width + height)
sub r3, r3, #20 // 25 leading bits, minus table offset 5
sub r12, r12, #25
clz lr, lr // ctz(width + height)
ldr r3, [r5, r3, lsl #2]
ldr r12, [r5, r12, lsl #2]
neg lr, lr // -ctz(width + height)
add r3, r5, r3
add r5, r5, r12
vshr.u16 q15, q15, #1 // (width + height) >> 1
vdup.16 q14, lr // -ctz(width + height)
add r12, r0, r1
lsl r1, r1, #1
bx r5
.align 2
L(ipred_dc_tbl):
.word L(ipred_dc_h64) - L(ipred_dc_tbl) + CONFIG_THUMB
.word L(ipred_dc_h32) - L(ipred_dc_tbl) + CONFIG_THUMB
.word L(ipred_dc_h16) - L(ipred_dc_tbl) + CONFIG_THUMB
.word L(ipred_dc_h8) - L(ipred_dc_tbl) + CONFIG_THUMB
.word L(ipred_dc_h4) - L(ipred_dc_tbl) + CONFIG_THUMB
.word L(ipred_dc_w64) - L(ipred_dc_tbl) + CONFIG_THUMB
.word L(ipred_dc_w32) - L(ipred_dc_tbl) + CONFIG_THUMB
.word L(ipred_dc_w16) - L(ipred_dc_tbl) + CONFIG_THUMB
.word L(ipred_dc_w8) - L(ipred_dc_tbl) + CONFIG_THUMB
.word L(ipred_dc_w4) - L(ipred_dc_tbl) + CONFIG_THUMB
L(ipred_dc_h4):
vld1.32 {d0[]}, [r2, :32]!
vpaddl.u8 d0, d0
vpadd.u16 d0, d0
bx r3
L(ipred_dc_w4):
add r2, r2, #1
vld1.32 {d1[]}, [r2]
vadd.s16 d0, d0, d30
vpaddl.u8 d1, d1
vpadd.u16 d1, d1
cmp r4, #4
vadd.s16 d0, d0, d1
vshl.u16 d0, d0, d28
beq 1f
// h = 8/16
movw lr, #(0x3334/2)
movw r5, #(0x5556/2)
cmp r4, #16
it ne
movne lr, r5
vdup.16 d30, lr
vqdmulh.s16 d0, d0, d30
1:
vdup.8 d0, d0[0]
2:
vst1.32 {d0[0]}, [r0, :32], r1
vst1.32 {d0[0]}, [r12, :32], r1
subs r4, r4, #4
vst1.32 {d0[0]}, [r0, :32], r1
vst1.32 {d0[0]}, [r12, :32], r1
bgt 2b
pop {r4-r6, pc}
L(ipred_dc_h8):
vld1.8 {d0}, [r2, :64]!
vpaddl.u8 d0, d0
vpadd.u16 d0, d0
vpadd.u16 d0, d0
bx r3
L(ipred_dc_w8):
add r2, r2, #1
vld1.8 {d2}, [r2]
vadd.s16 d0, d0, d30
vpaddl.u8 d2, d2
vpadd.u16 d2, d2
vpadd.u16 d2, d2
cmp r4, #8
vadd.s16 d0, d0, d2
vshl.u16 d0, d0, d28
beq 1f
// h = 4/16/32
cmp r4, #32
movw lr, #(0x3334/2)
movw r5, #(0x5556/2)
it ne
movne lr, r5
vdup.16 d24, lr
vqdmulh.s16 d0, d0, d24
1:
vdup.8 d0, d0[0]
2:
vst1.8 {d0}, [r0, :64], r1
vst1.8 {d0}, [r12, :64], r1
subs r4, r4, #4
vst1.8 {d0}, [r0, :64], r1
vst1.8 {d0}, [r12, :64], r1
bgt 2b
pop {r4-r6, pc}
L(ipred_dc_h16):
vld1.8 {d0, d1}, [r2, :128]!
vaddl.u8 q0, d0, d1
vadd.u16 d0, d0, d1
vpadd.u16 d0, d0
vpadd.u16 d0, d0
bx r3
L(ipred_dc_w16):
add r2, r2, #1
vld1.8 {d2, d3}, [r2]
vadd.s16 d0, d0, d30
vaddl.u8 q1, d2, d3
vadd.u16 d2, d2, d3
vpadd.u16 d2, d2
vpadd.u16 d2, d2
cmp r4, #16
vadd.s16 d0, d0, d2
vshl.u16 d0, d0, d28
beq 1f
// h = 4/8/32/64
tst r4, #(32+16+8) // 16 added to make a consecutive bitmask
movw lr, #(0x3334/2)
movw r5, #(0x5556/2)
it ne
movne lr, r5
vdup.16 d24, lr
vqdmulh.s16 d0, d0, d24
1:
vdup.8 q0, d0[0]
2:
vst1.8 {d0, d1}, [r0, :128], r1
vst1.8 {d0, d1}, [r12, :128], r1
subs r4, r4, #4
vst1.8 {d0, d1}, [r0, :128], r1
vst1.8 {d0, d1}, [r12, :128], r1
bgt 2b
pop {r4-r6, pc}
L(ipred_dc_h32):
vld1.8 {d0, d1, d2, d3}, [r2, :128]!
vaddl.u8 q0, d0, d1
vaddl.u8 q1, d2, d3
vadd.u16 q0, q0, q1
vadd.u16 d0, d0, d1
vpadd.u16 d0, d0
vpadd.u16 d0, d0
bx r3
L(ipred_dc_w32):
add r2, r2, #1
vld1.8 {d2, d3, d4, d5}, [r2]
vadd.s16 d0, d0, d30
vaddl.u8 q1, d2, d3
vaddl.u8 q2, d4, d5
vadd.u16 q1, q1, q2
vadd.u16 d2, d2, d3
vpadd.u16 d2, d2
vpadd.u16 d2, d2
cmp r4, #32
vadd.s16 d0, d0, d2
vshl.u16 d4, d0, d28
beq 1f
// h = 8/16/64
cmp r4, #8
movw lr, #(0x3334/2)
movw r5, #(0x5556/2)
it ne
movne lr, r5
vdup.16 d24, lr
vqdmulh.s16 d4, d4, d24
1:
vdup.8 q0, d4[0]
vdup.8 q1, d4[0]
2:
vst1.8 {d0, d1, d2, d3}, [r0, :128], r1
vst1.8 {d0, d1, d2, d3}, [r12, :128], r1
subs r4, r4, #4
vst1.8 {d0, d1, d2, d3}, [r0, :128], r1
vst1.8 {d0, d1, d2, d3}, [r12, :128], r1
bgt 2b
pop {r4-r6, pc}
L(ipred_dc_h64):
vld1.8 {d0, d1, d2, d3}, [r2, :128]!
vaddl.u8 q0, d0, d1
vld1.8 {d4, d5, d6, d7}, [r2, :128]!
vaddl.u8 q1, d2, d3
vaddl.u8 q2, d4, d5
vaddl.u8 q3, d6, d7
vadd.u16 q0, q0, q1
vadd.u16 q1, q2, q3
vadd.u16 q0, q0, q1
vadd.u16 d0, d0, d1
vpadd.u16 d0, d0
vpadd.u16 d0, d0
bx r3
L(ipred_dc_w64):
add r2, r2, #1
vld1.8 {d2, d3, d4, d5}, [r2]!
vadd.s16 d0, d0, d30
vaddl.u8 q2, d4, d5
vaddl.u8 q1, d2, d3
vadd.u16 d4, d4, d5
vadd.u16 d2, d2, d3
vld1.8 {d16, d17, d18, d19}, [r2]
vpadd.u16 d4, d4
vpadd.u16 d2, d2
vpadd.u16 d4, d4
vpadd.u16 d2, d2
vaddl.u8 q8, d16, d17
vaddl.u8 q9, d18, d19
vadd.u16 d16, d16, d17
vadd.u16 d18, d18, d19
vpadd.u16 d16, d16
vpadd.u16 d18, d18
vpadd.u16 d16, d16
vpadd.u16 d18, d18
vadd.u16 d2, d2, d4
vadd.u16 d3, d16, d18
cmp r4, #64
vadd.s16 d0, d0, d2
vadd.s16 d0, d0, d3
vshl.u16 d18, d0, d28
beq 1f // h = 16/32
movw lr, #(0x5556/2)
movt lr, #(0x3334/2)
mov r5, r4
and r5, r5, #31
lsr lr, lr, r5
vdup.16 d30, lr
vqdmulh.s16 d18, d18, d30
1:
sub r1, r1, #32
vdup.8 q0, d18[0]
vdup.8 q1, d18[0]
vdup.8 q2, d18[0]
vdup.8 q3, d18[0]
2:
vst1.8 {d0, d1, d2, d3}, [r0, :128]!
vst1.8 {d0, d1, d2, d3}, [r12, :128]!
vst1.8 {d4, d5, d6, d7}, [r0, :128], r1
vst1.8 {d4, d5, d6, d7}, [r12, :128], r1
subs r4, r4, #4
vst1.8 {d0, d1, d2, d3}, [r0, :128]!
vst1.8 {d0, d1, d2, d3}, [r12, :128]!
vst1.8 {d4, d5, d6, d7}, [r0, :128], r1
vst1.8 {d4, d5, d6, d7}, [r12, :128], r1
bgt 2b
pop {r4-r6, pc}
endfunc
// void ipred_paeth_8bpc_neon(pixel *dst, const ptrdiff_t stride,
// const pixel *const topleft,
// const int width, const int height, const int a,
// const int max_width, const int max_height);
function ipred_paeth_8bpc_neon, export=1
push {r4-r8, lr}
ldr r4, [sp, #24]
clz lr, r3
adr r5, L(ipred_paeth_tbl)
sub lr, lr, #25
ldr lr, [r5, lr, lsl #2]
vld1.8 {d4[], d5[]}, [r2]
add r8, r2, #1
sub r2, r2, #4
add r5, r5, lr
mov r7, #-4
add r6, r0, r1
lsl r1, r1, #1
bx r5
.align 2
L(ipred_paeth_tbl):
.word 640f - L(ipred_paeth_tbl) + CONFIG_THUMB
.word 320f - L(ipred_paeth_tbl) + CONFIG_THUMB
.word 160f - L(ipred_paeth_tbl) + CONFIG_THUMB
.word 80f - L(ipred_paeth_tbl) + CONFIG_THUMB
.word 40f - L(ipred_paeth_tbl) + CONFIG_THUMB
40:
vld1.32 {d6[], d7[]}, [r8]
vsubl.u8 q8, d6, d4 // top - topleft
4:
vld4.8 {d0[], d1[], d2[], d3[]}, [r2, :32], r7
vzip.32 d0, d1
vzip.32 d2, d3
vaddw.u8 q9, q8, d0
vaddw.u8 q10, q8, d2
vqmovun.s16 d18, q9 // base
vqmovun.s16 d19, q10
vmov d1, d2
vabd.u8 q10, q3, q9 // tdiff
vabd.u8 q11, q2, q9 // tldiff
vabd.u8 q9, q0, q9 // ldiff
vmin.u8 q12, q10, q11 // min(tdiff, tldiff)
vcge.u8 q10, q11, q10 // tldiff >= tdiff
vcge.u8 q9, q12, q9 // min(tdiff, tldiff) >= ldiff
vbsl q10, q3, q2 // tdiff <= tldiff ? top : topleft
vbit q10, q0, q9 // ldiff <= min ? left : ...
vst1.32 {d21[1]}, [r0, :32], r1
vst1.32 {d21[0]}, [r6, :32], r1
subs r4, r4, #4
vst1.32 {d20[1]}, [r0, :32], r1
vst1.32 {d20[0]}, [r6, :32], r1
bgt 4b
pop {r4-r8, pc}
80:
vld1.8 {d6}, [r8]
vsubl.u8 q8, d6, d4 // top - topleft
vmov d7, d6
8:
vld4.8 {d0[], d1[], d2[], d3[]}, [r2, :32], r7
vaddw.u8 q9, q8, d0
vaddw.u8 q10, q8, d1
vaddw.u8 q11, q8, d2
vaddw.u8 q12, q8, d3
vqmovun.s16 d18, q9 // base
vqmovun.s16 d19, q10
vqmovun.s16 d20, q11
vqmovun.s16 d21, q12
vabd.u8 q11, q3, q9 // tdiff
vabd.u8 q12, q3, q10
vabd.u8 q13, q2, q9 // tldiff
vabd.u8 q14, q2, q10
vabd.u8 q10, q1, q10 // ldiff
vabd.u8 q9, q0, q9
vmin.u8 q15, q12, q14 // min(tdiff, tldiff)
vcge.u8 q12, q14, q12 // tldiff >= tdiff
vmin.u8 q14, q11, q13 // min(tdiff, tldiff)
vcge.u8 q11, q13, q11 // tldiff >= tdiff
vcge.u8 q10, q15, q10 // min(tdiff, tldiff) >= ldiff
vcge.u8 q9, q14, q9
vbsl q12, q3, q2 // tdiff <= tldiff ? top : topleft
vbsl q11, q3, q2
vbit q12, q1, q10 // ldiff <= min ? left : ...
vbit q11, q0, q9
vst1.8 {d25}, [r0, :64], r1
vst1.8 {d24}, [r6, :64], r1
subs r4, r4, #4
vst1.8 {d23}, [r0, :64], r1
vst1.8 {d22}, [r6, :64], r1
bgt 8b
pop {r4-r8, pc}
160:
320:
640:
vld1.8 {d6}, [r8]!
mov r12, r3
// Set up pointers for four rows in parallel; r0, r6, r5, lr
add r5, r0, r1
add lr, r6, r1
lsl r1, r1, #1
sub r1, r1, r3
1:
vld4.8 {d0[], d1[], d2[], d3[]}, [r2, :32], r7
2:
vsubl.u8 q8, d6, d4 // top - topleft
vmov d7, d6
vaddw.u8 q9, q8, d0
vaddw.u8 q10, q8, d1
vaddw.u8 q11, q8, d2
vaddw.u8 q12, q8, d3
vqmovun.s16 d18, q9 // base
vqmovun.s16 d19, q10
vqmovun.s16 d20, q11
vqmovun.s16 d21, q12
vabd.u8 q11, q3, q9 // tdiff
vabd.u8 q12, q3, q10
vabd.u8 q13, q2, q9 // tldiff
vabd.u8 q14, q2, q10
vabd.u8 q10, q1, q10 // ldiff
vabd.u8 q9, q0, q9
vmin.u8 q15, q12, q14 // min(tdiff, tldiff)
vcge.u8 q12, q14, q12 // tldiff >= tdiff
vmin.u8 q14, q11, q13 // min(tdiff, tldiff)
vcge.u8 q11, q13, q11 // tldiff >= tdiff
vcge.u8 q10, q15, q10 // min(tdiff, tldiff) >= ldiff
vcge.u8 q9, q14, q9
vbsl q12, q3, q2 // tdiff <= tldiff ? top : topleft
vbsl q11, q3, q2
vbit q12, q1, q10 // ldiff <= min ? left : ...
vbit q11, q0, q9
subs r3, r3, #8
vst1.8 {d25}, [r0, :64]!
vst1.8 {d24}, [r6, :64]!
vst1.8 {d23}, [r5, :64]!
vst1.8 {d22}, [lr, :64]!
ble 8f
vld1.8 {d6}, [r8]!
b 2b
8:
subs r4, r4, #4
ble 9f
// End of horizontal loop, move pointers to next four rows
sub r8, r8, r12
add r0, r0, r1
add r6, r6, r1
vld1.8 {d6}, [r8]!
add r5, r5, r1
add lr, lr, r1
mov r3, r12
b 1b
9:
pop {r4-r8, pc}
endfunc
// void ipred_smooth_8bpc_neon(pixel *dst, const ptrdiff_t stride,
// const pixel *const topleft,
// const int width, const int height, const int a,
// const int max_width, const int max_height);
function ipred_smooth_8bpc_neon, export=1
push {r4-r10, lr}
ldr r4, [sp, #32]
movrel r10, X(sm_weights)
add r12, r10, r4
add r10, r10, r3
clz r9, r3
adr r5, L(ipred_smooth_tbl)
sub lr, r2, r4
sub r9, r9, #25
ldr r9, [r5, r9, lsl #2]
vld1.8 {d4[]}, [lr] // bottom
add r8, r2, #1
add r5, r5, r9
add r6, r0, r1
lsl r1, r1, #1
bx r5
.align 2
L(ipred_smooth_tbl):
.word 640f - L(ipred_smooth_tbl) + CONFIG_THUMB
.word 320f - L(ipred_smooth_tbl) + CONFIG_THUMB
.word 160f - L(ipred_smooth_tbl) + CONFIG_THUMB
.word 80f - L(ipred_smooth_tbl) + CONFIG_THUMB
.word 40f - L(ipred_smooth_tbl) + CONFIG_THUMB
40:
vld1.32 {d16[]}, [r8] // top
vld1.32 {d18[]}, [r10, :32] // weights_hor
sub r2, r2, #4
mov r7, #-4
vdup.8 q3, d16[3] // right
vsubl.u8 q8, d16, d4 // top-bottom
vmovl.u8 q9, d18 // weights_hor
4:
vld4.8 {d0[], d1[], d2[], d3[]}, [r2, :32], r7 // left
vld4.8 {d20[], d21[], d22[], d23[]}, [r12, :32]! // weights_ver
vshll.i8 q12, d6, #8 // right*256
vshll.i8 q13, d6, #8
vzip.32 d1, d0 // left, flipped
vzip.32 d3, d2
vzip.32 d20, d21 // weights_ver
vzip.32 d22, d23
vshll.i8 q14, d4, #8 // bottom*256
vshll.i8 q15, d4, #8
vsubl.u8 q0, d1, d6 // left-right
vsubl.u8 q1, d3, d6
vmovl.u8 q10, d20 // weights_ver
vmovl.u8 q11, d22
vmla.i16 q12, q1, q9 // right*256 + (left-right)*weights_hor
vmla.i16 q13, q0, q9 // (left flipped)
vmla.i16 q14, q8, q10 // bottom*256 + (top-bottom)*weights_ver
vmla.i16 q15, q8, q11
vhadd.u16 q12, q12, q14
vhadd.u16 q13, q13, q15
vrshrn.i16 d24, q12, #8
vrshrn.i16 d25, q13, #8
vst1.32 {d24[0]}, [r0, :32], r1
vst1.32 {d24[1]}, [r6, :32], r1
subs r4, r4, #4
vst1.32 {d25[0]}, [r0, :32], r1
vst1.32 {d25[1]}, [r6, :32], r1
bgt 4b
pop {r4-r10, pc}
80:
vld1.8 {d16}, [r8] // top
vld1.8 {d18}, [r10, :64] // weights_hor
sub r2, r2, #2
mov r7, #-2
vdup.8 q3, d16[7] // right
vsubl.u8 q8, d16, d4 // top-bottom
vmovl.u8 q9, d18 // weights_hor
8:
vld2.8 {d0[], d1[]}, [r2, :16], r7 // left
vld2.8 {d20[], d22[]}, [r12, :16]! // weights_ver
vshll.i8 q12, d6, #8 // right*256
vshll.i8 q13, d6, #8
vshll.i8 q14, d4, #8 // bottom*256
vshll.i8 q15, d4, #8
vsubl.u8 q1, d0, d6 // left-right (left flipped)
vsubl.u8 q0, d1, d6
vmovl.u8 q10, d20 // weights_ver
vmovl.u8 q11, d22
vmla.i16 q12, q0, q9 // right*256 + (left-right)*weights_hor
vmla.i16 q13, q1, q9
vmla.i16 q14, q8, q10 // bottom*256 + (top-bottom)*weights_ver
vmla.i16 q15, q8, q11
vhadd.u16 q12, q12, q14
vhadd.u16 q13, q13, q15
vrshrn.i16 d24, q12, #8
vrshrn.i16 d25, q13, #8
subs r4, r4, #2
vst1.8 {d24}, [r0, :64], r1
vst1.8 {d25}, [r6, :64], r1
bgt 8b
pop {r4-r10, pc}
160:
320:
640:
add lr, r2, r3
sub r2, r2, #2
mov r7, #-2
vld1.8 {d6[], d7[]}, [lr] // right
sub r1, r1, r3
mov r9, r3
1:
vld2.8 {d0[], d1[]}, [r2, :16], r7 // left
vld2.8 {d20[], d22[]}, [r12, :16]! // weights_ver
vsubl.u8 q1, d0, d6 // left-right (left flipped)
vsubl.u8 q0, d1, d6
vmovl.u8 q10, d20 // weights_ver
vmovl.u8 q11, d22
2:
vld1.8 {d16}, [r8]! // top
vld1.8 {d18}, [r10, :64]! // weights_hor
vshll.i8 q12, d6, #8 // right*256
vshll.i8 q13, d6, #8
vmovl.u8 q9, d18 // weights_hor
vshll.i8 q14, d4, #8 // bottom*256
vshll.i8 q15, d4, #8
vsubl.u8 q8, d16, d4 // top-bottom
vmla.i16 q12, q0, q9 // right*256 + (left-right)*weights_hor
vmla.i16 q13, q1, q9
vmla.i16 q14, q8, q10 // bottom*256 + (top-bottom)*weights_ver
vmla.i16 q15, q8, q11
vhadd.u16 q12, q12, q14
vhadd.u16 q13, q13, q15
vrshrn.i16 d24, q12, #8
vrshrn.i16 d25, q13, #8
subs r3, r3, #8
vst1.8 {d24}, [r0, :64]!
vst1.8 {d25}, [r6, :64]!
bgt 2b
subs r4, r4, #2
ble 9f
sub r8, r8, r9
sub r10, r10, r9
add r0, r0, r1
add r6, r6, r1
mov r3, r9
b 1b
9:
pop {r4-r10, pc}
endfunc
// void ipred_smooth_v_8bpc_neon(pixel *dst, const ptrdiff_t stride,
// const pixel *const topleft,
// const int width, const int height, const int a,
// const int max_width, const int max_height);
function ipred_smooth_v_8bpc_neon, export=1
push {r4-r7, lr}
ldr r4, [sp, #20]
movrel r7, X(sm_weights)
add r7, r7, r4
clz lr, r3
adr r5, L(ipred_smooth_v_tbl)
sub r12, r2, r4
sub lr, lr, #25
ldr lr, [r5, lr, lsl #2]
vld1.8 {d4[]}, [r12] // bottom
add r2, r2, #1
add r5, r5, lr
add r6, r0, r1
lsl r1, r1, #1
bx r5
.align 2
L(ipred_smooth_v_tbl):
.word 640f - L(ipred_smooth_v_tbl) + CONFIG_THUMB
.word 320f - L(ipred_smooth_v_tbl) + CONFIG_THUMB
.word 160f - L(ipred_smooth_v_tbl) + CONFIG_THUMB
.word 80f - L(ipred_smooth_v_tbl) + CONFIG_THUMB
.word 40f - L(ipred_smooth_v_tbl) + CONFIG_THUMB
40:
vld1.32 {d6[]}, [r2] // top
vsubl.u8 q3, d6, d4 // top-bottom
4:
vld4.8 {d16[], d17[], d18[], d19[]}, [r7, :32]! // weights_ver
vshll.i8 q10, d4, #8 // bottom*256
vshll.i8 q11, d4, #8
vzip.32 d16, d17 // weights_ver
vzip.32 d18, d19
vmovl.u8 q8, d16 // weights_ver
vmovl.u8 q9, d18
subs r4, r4, #4
vmla.i16 q10, q3, q8 // bottom*256 + (top-bottom)*weights_ver
vmla.i16 q11, q3, q9
vrshrn.i16 d20, q10, #8
vrshrn.i16 d21, q11, #8
vst1.32 {d20[0]}, [r0, :32], r1
vst1.32 {d20[1]}, [r6, :32], r1
vst1.32 {d21[0]}, [r0, :32], r1
vst1.32 {d21[1]}, [r6, :32], r1
bgt 4b
pop {r4-r7, pc}
80:
vld1.8 {d6}, [r2] // top
vsubl.u8 q3, d6, d4 // top-bottom
8:
vld4.8 {d16[], d18[], d20[], d22[]}, [r7, :32]! // weights_ver
vshll.i8 q12, d4, #8 // bottom*256
vshll.i8 q13, d4, #8
vshll.i8 q14, d4, #8
vshll.i8 q15, d4, #8
vmovl.u8 q8, d16 // weights_ver
vmovl.u8 q9, d18
vmovl.u8 q10, d20
vmovl.u8 q11, d22
vmla.i16 q12, q3, q8 // bottom*256 + (top-bottom)*weights_ver
vmla.i16 q13, q3, q9
vmla.i16 q14, q3, q10
vmla.i16 q15, q3, q11
vrshrn.i16 d24, q12, #8
vrshrn.i16 d25, q13, #8
vrshrn.i16 d26, q14, #8
vrshrn.i16 d27, q15, #8
vst1.8 {d24}, [r0, :64], r1
vst1.8 {d25}, [r6, :64], r1
subs r4, r4, #4
vst1.8 {d26}, [r0, :64], r1
vst1.8 {d27}, [r6, :64], r1
bgt 8b
pop {r4-r7, pc}
160:
320:
640:
vpush {q4-q7}
// Set up pointers for four rows in parallel; r0, r6, r5, lr
add r5, r0, r1
add lr, r6, r1
lsl r1, r1, #1
sub r1, r1, r3
mov r12, r3
1:
vld4.8 {d8[], d10[], d12[], d14[]}, [r7, :32]! // weights_ver
vmovl.u8 q4, d8 // weights_ver
vmovl.u8 q5, d10
vmovl.u8 q6, d12
vmovl.u8 q7, d14
2:
vld1.8 {q3}, [r2]! // top
vshll.i8 q8, d4, #8 // bottom*256
vshll.i8 q9, d4, #8
vshll.i8 q10, d4, #8
vshll.i8 q11, d4, #8
vsubl.u8 q0, d6, d4 // top-bottom
vsubl.u8 q1, d7, d4
vshll.i8 q12, d4, #8
vshll.i8 q13, d4, #8
vshll.i8 q14, d4, #8
vshll.i8 q15, d4, #8
vmla.i16 q8, q0, q4 // bottom*256 + (top-bottom)*weights_ver
vmla.i16 q9, q1, q4
vmla.i16 q10, q0, q5
vmla.i16 q11, q1, q5
vmla.i16 q12, q0, q6 // bottom*256 + (top-bottom)*weights_ver
vmla.i16 q13, q1, q6
vmla.i16 q14, q0, q7
vmla.i16 q15, q1, q7
vrshrn.i16 d16, q8, #8
vrshrn.i16 d17, q9, #8
vrshrn.i16 d18, q10, #8
vrshrn.i16 d19, q11, #8
vrshrn.i16 d20, q12, #8
vrshrn.i16 d21, q13, #8
vrshrn.i16 d22, q14, #8
vrshrn.i16 d23, q15, #8
subs r3, r3, #16
vst1.8 {q8}, [r0, :128]!
vst1.8 {q9}, [r6, :128]!
vst1.8 {q10}, [r5, :128]!
vst1.8 {q11}, [lr, :128]!
bgt 2b
subs r4, r4, #4
ble 9f
sub r2, r2, r12
add r0, r0, r1
add r6, r6, r1
add r5, r5, r1
add lr, lr, r1
mov r3, r12
b 1b
9:
vpop {q4-q7}
pop {r4-r7, pc}
endfunc
// void ipred_smooth_h_8bpc_neon(pixel *dst, const ptrdiff_t stride,
// const pixel *const topleft,
// const int width, const int height, const int a,
// const int max_width, const int max_height);
function ipred_smooth_h_8bpc_neon, export=1
push {r4-r8, lr}
ldr r4, [sp, #24]
movrel r8, X(sm_weights)
add r8, r8, r3
clz lr, r3
adr r5, L(ipred_smooth_h_tbl)
add r12, r2, r3
sub lr, lr, #25
ldr lr, [r5, lr, lsl #2]
vld1.8 {d4[]}, [r12] // right
add r5, r5, lr
add r6, r0, r1
lsl r1, r1, #1
bx r5
.align 2
L(ipred_smooth_h_tbl):
.word 640f - L(ipred_smooth_h_tbl) + CONFIG_THUMB
.word 320f - L(ipred_smooth_h_tbl) + CONFIG_THUMB
.word 160f - L(ipred_smooth_h_tbl) + CONFIG_THUMB
.word 80f - L(ipred_smooth_h_tbl) + CONFIG_THUMB
.word 40f - L(ipred_smooth_h_tbl) + CONFIG_THUMB
40:
vld1.32 {d6[]}, [r8, :32] // weights_hor
sub r2, r2, #4
mov r7, #-4
vmovl.u8 q3, d6 // weights_hor
4:
vld4.8 {d0[], d1[], d2[], d3[]}, [r2, :32], r7 // left
vshll.i8 q8, d4, #8 // right*256
vshll.i8 q9, d4, #8
vzip.32 d3, d2 // left, flipped
vzip.32 d1, d0
vsubl.u8 q1, d3, d4 // left-right
vsubl.u8 q0, d1, d4
subs r4, r4, #4
vmla.i16 q8, q1, q3 // right*256 + (left-right)*weights_hor
vmla.i16 q9, q0, q3
vrshrn.i16 d16, q8, #8
vrshrn.i16 d17, q9, #8
vst1.32 {d16[0]}, [r0, :32], r1
vst1.32 {d16[1]}, [r6, :32], r1
vst1.32 {d17[0]}, [r0, :32], r1
vst1.32 {d17[1]}, [r6, :32], r1
bgt 4b
pop {r4-r8, pc}
80:
vld1.8 {d6}, [r8, :64] // weights_hor
sub r2, r2, #4
mov r7, #-4
vmovl.u8 q3, d6 // weights_hor
8:
vld4.8 {d16[], d18[], d20[], d22[]}, [r2, :32], r7 // left
vshll.i8 q12, d4, #8 // right*256
vshll.i8 q13, d4, #8
vshll.i8 q14, d4, #8
vshll.i8 q15, d4, #8
vsubl.u8 q11, d22, d4 // left-right
vsubl.u8 q10, d20, d4
vsubl.u8 q9, d18, d4
vsubl.u8 q8, d16, d4
vmla.i16 q12, q11, q3 // right*256 + (left-right)*weights_hor
vmla.i16 q13, q10, q3 // (left flipped)
vmla.i16 q14, q9, q3
vmla.i16 q15, q8, q3
vrshrn.i16 d24, q12, #8
vrshrn.i16 d25, q13, #8
vrshrn.i16 d26, q14, #8
vrshrn.i16 d27, q15, #8
vst1.8 {d24}, [r0, :64], r1
vst1.8 {d25}, [r6, :64], r1
subs r4, r4, #4
vst1.8 {d26}, [r0, :64], r1
vst1.8 {d27}, [r6, :64], r1
bgt 8b
pop {r4-r8, pc}
160:
320:
640:
vpush {q4-q7}
sub r2, r2, #4
mov r7, #-4
// Set up pointers for four rows in parallel; r0, r6, r5, lr
add r5, r0, r1
add lr, r6, r1
lsl r1, r1, #1
sub r1, r1, r3
mov r12, r3
1:
vld4.8 {d8[], d10[], d12[], d14[]}, [r2, :32], r7 // left
vsubl.u8 q4, d8, d4 // left-right
vsubl.u8 q5, d10, d4
vsubl.u8 q6, d12, d4
vsubl.u8 q7, d14, d4
2:
vld1.8 {q1}, [r8, :128]! // weights_hor
vshll.i8 q8, d4, #8 // right*256
vshll.i8 q9, d4, #8
vshll.i8 q10, d4, #8
vshll.i8 q11, d4, #8
vmovl.u8 q0, d2 // weights_hor
vmovl.u8 q1, d3
vshll.i8 q12, d4, #8
vshll.i8 q13, d4, #8
vshll.i8 q14, d4, #8
vshll.i8 q15, d4, #8
vmla.i16 q8, q7, q0 // right*256 + (left-right)*weights_hor
vmla.i16 q9, q7, q1 // (left flipped)
vmla.i16 q10, q6, q0
vmla.i16 q11, q6, q1
vmla.i16 q12, q5, q0
vmla.i16 q13, q5, q1
vmla.i16 q14, q4, q0
vmla.i16 q15, q4, q1
vrshrn.i16 d16, q8, #8
vrshrn.i16 d17, q9, #8
vrshrn.i16 d18, q10, #8
vrshrn.i16 d19, q11, #8
vrshrn.i16 d20, q12, #8
vrshrn.i16 d21, q13, #8
vrshrn.i16 d22, q14, #8
vrshrn.i16 d23, q15, #8
subs r3, r3, #16
vst1.8 {q8}, [r0, :128]!
vst1.8 {q9}, [r6, :128]!
vst1.8 {q10}, [r5, :128]!
vst1.8 {q11}, [lr, :128]!
bgt 2b
subs r4, r4, #4
ble 9f
sub r8, r8, r12
add r0, r0, r1
add r6, r6, r1
add r5, r5, r1
add lr, lr, r1
mov r3, r12
b 1b
9:
vpop {q4-q7}
pop {r4-r8, pc}
endfunc
// void ipred_filter_8bpc_neon(pixel *dst, const ptrdiff_t stride,
// const pixel *const topleft,
// const int width, const int height, const int filt_idx,
// const int max_width, const int max_height);
function ipred_filter_8bpc_neon, export=1
push {r4-r8, lr}
movw r12, #511
ldr r5, [sp, #28]
ldr r4, [sp, #24]
and r5, r5, r12 // 511
movrel r6, X(filter_intra_taps)
lsl r5, r5, #6
add r6, r6, r5
vld1.8 {d20, d21, d22, d23}, [r6, :128]!
clz lr, r3
adr r5, L(ipred_filter_tbl)
vld1.8 {d27, d28, d29}, [r6, :64]
sub lr, lr, #26
ldr lr, [r5, lr, lsl #2]
vmovl.s8 q8, d20
vmovl.s8 q9, d21
add r5, r5, lr
vmovl.s8 q10, d22
vmovl.s8 q11, d23
add r6, r0, r1
lsl r1, r1, #1
vmovl.s8 q12, d27
vmovl.s8 q13, d28
vmovl.s8 q14, d29
add r8, r2, #1
bx r5
.align 2
L(ipred_filter_tbl):
.word 320f - L(ipred_filter_tbl) + CONFIG_THUMB
.word 160f - L(ipred_filter_tbl) + CONFIG_THUMB
.word 80f - L(ipred_filter_tbl) + CONFIG_THUMB
.word 40f - L(ipred_filter_tbl) + CONFIG_THUMB
40:
vld1.32 {d0[]}, [r8] // top (0-3)
sub r2, r2, #2
mov r7, #-2
vmovl.u8 q0, d0 // top (0-3)
4:
vld1.32 {d2[]}, [r2], r7 // left (0-1) + topleft (2)
vmul.i16 q2, q9, d0[0] // p1(top[0]) * filter(1)
vmla.i16 q2, q10, d0[1] // p2(top[1]) * filter(2)
vmla.i16 q2, q11, d0[2] // p3(top[2]) * filter(3)
vmovl.u8 q1, d2 // left (0-1) + topleft (2)
vmla.i16 q2, q12, d0[3] // p4(top[3]) * filter(4)
vmla.i16 q2, q8, d2[2] // p0(topleft) * filter(0)
vmla.i16 q2, q13, d2[1] // p5(left[0]) * filter(5)
vmla.i16 q2, q14, d2[0] // p6(left[1]) * filter(6)
vqrshrun.s16 d4, q2, #4
subs r4, r4, #2
vst1.32 {d4[0]}, [r0, :32], r1
vmovl.u8 q0, d4
vst1.32 {d4[1]}, [r6, :32], r1
vext.8 q0, q0, q0, #8 // move top from [4-7] to [0-3]
bgt 4b
pop {r4-r8, pc}
80:
vld1.8 {d0}, [r8] // top (0-7)
sub r2, r2, #2
mov r7, #-2
vmovl.u8 q0, d0 // top (0-7)
8:
vld1.32 {d2[]}, [r2], r7 // left (0-1) + topleft (2)
vmul.i16 q2, q9, d0[0] // p1(top[0]) * filter(1)
vmla.i16 q2, q10, d0[1] // p2(top[1]) * filter(2)
vmla.i16 q2, q11, d0[2] // p3(top[2]) * filter(3)
vmovl.u8 q1, d2 // left (0-1) + topleft (2)
vmla.i16 q2, q12, d0[3] // p4(top[3]) * filter(4)
vmla.i16 q2, q8, d2[2] // p0(topleft) * filter(0)
vmla.i16 q2, q13, d2[1] // p5(left[0]) * filter(5)
vmla.i16 q2, q14, d2[0] // p6(left[1]) * filter(6)
vmul.i16 q3, q9, d1[0] // p1(top[0]) * filter(1)
vmla.i16 q3, q10, d1[1] // p2(top[1]) * filter(2)
vmla.i16 q3, q11, d1[2] // p3(top[2]) * filter(3)
vqrshrun.s16 d4, q2, #4
vmovl.u8 q1, d4 // first block, in 16 bit
vmla.i16 q3, q12, d1[3] // p4(top[3]) * filter(4)
vmla.i16 q3, q8, d0[3] // p0(topleft) * filter(0)
vmla.i16 q3, q13, d2[3] // p5(left[0]) * filter(5)
vmla.i16 q3, q14, d3[3] // p6(left[1]) * filter(6)
vqrshrun.s16 d5, q3, #4
vzip.32 d4, d5
subs r4, r4, #2
vst1.64 {d4}, [r0, :64], r1
vmovl.u8 q0, d5
vst1.64 {d5}, [r6, :64], r1
bgt 8b
pop {r4-r8, pc}
160:
320:
vpush {q4-q5}
sub r2, r2, #2
mov r7, #-2
sub r1, r1, r3
mov lr, r3
1:
vld1.32 {d0[]}, [r2], r7 // left (0-1) + topleft (2)
vmovl.u8 q0, d0 // left (0-1) + topleft (2)
2:
vld1.8 {q2}, [r8]! // top(0-15)
vmul.i16 q3, q8, d0[2] // p0(topleft) * filter(0)
vmla.i16 q3, q13, d0[1] // p5(left[0]) * filter(5)
vmovl.u8 q1, d4 // top(0-7)
vmovl.u8 q2, d5 // top(8-15)
vmla.i16 q3, q14, d0[0] // p6(left[1]) * filter(6)
vmla.i16 q3, q9, d2[0] // p1(top[0]) * filter(1)
vmla.i16 q3, q10, d2[1] // p2(top[1]) * filter(2)
vmla.i16 q3, q11, d2[2] // p3(top[2]) * filter(3)
vmla.i16 q3, q12, d2[3] // p4(top[3]) * filter(4)
vmul.i16 q4, q9, d3[0] // p1(top[0]) * filter(1)
vmla.i16 q4, q10, d3[1] // p2(top[1]) * filter(2)
vmla.i16 q4, q11, d3[2] // p3(top[2]) * filter(3)
vqrshrun.s16 d6, q3, #4
vmovl.u8 q0, d6 // first block, in 16 bit
vmla.i16 q4, q12, d3[3] // p4(top[3]) * filter(4)
vmla.i16 q4, q8, d2[3] // p0(topleft) * filter(0)
vmla.i16 q4, q13, d0[3] // p5(left[0]) * filter(5)
vmla.i16 q4, q14, d1[3] // p6(left[1]) * filter(6)
vmul.i16 q5, q9, d4[0] // p1(top[0]) * filter(1)
vmla.i16 q5, q10, d4[1] // p2(top[1]) * filter(2)
vmla.i16 q5, q11, d4[2] // p3(top[2]) * filter(3)
vqrshrun.s16 d7, q4, #4
vmovl.u8 q0, d7 // second block, in 16 bit
vmla.i16 q5, q12, d4[3] // p4(top[3]) * filter(4)
vmla.i16 q5, q8, d3[3] // p0(topleft) * filter(0)
vmla.i16 q5, q13, d0[3] // p5(left[0]) * filter(5)
vmla.i16 q5, q14, d1[3] // p6(left[1]) * filter(6)
vmul.i16 q15, q9, d5[0] // p1(top[0]) * filter(1)
vmla.i16 q15, q10, d5[1] // p2(top[1]) * filter(2)
vmla.i16 q15, q11, d5[2] // p3(top[2]) * filter(3)
vqrshrun.s16 d8, q5, #4
vmovl.u8 q0, d8 // third block, in 16 bit
vmov.u8 r12, d5[6]
vmla.i16 q15, q12, d5[3] // p4(top[3]) * filter(4)
vmla.i16 q15, q8, d4[3] // p0(topleft) * filter(0)
vmla.i16 q15, q13, d0[3] // p5(left[0]) * filter(5)
vmla.i16 q15, q14, d1[3] // p6(left[1]) * filter(6)
vmov.8 d0[4], r12
subs r3, r3, #16
vqrshrun.s16 d9, q15, #4
vst4.32 {d6[0], d7[0], d8[0], d9[0]}, [r0, :128]!
vst4.32 {d6[1], d7[1], d8[1], d9[1]}, [r6, :128]!
ble 8f
vmov.u8 r12, d9[7]
vmov.8 d0[0], r12
vmov.u8 r12, d9[3]
vmov.8 d0[2], r12
b 2b
8:
subs r4, r4, #2
ble 9f
sub r8, r6, lr
add r0, r0, r1
add r6, r6, r1
mov r3, lr
b 1b
9:
vpop {q4-q5}
pop {r4-r8, pc}
endfunc
// void pal_pred_8bpc_neon(pixel *dst, const ptrdiff_t stride,
// const uint16_t *const pal, const uint8_t *idx,
// const int w, const int h);
function pal_pred_8bpc_neon, export=1
push {r4-r5, lr}
ldr r4, [sp, #12]
ldr r5, [sp, #16]
vld1.16 {q0}, [r2, :128]
clz lr, r4
adr r12, L(pal_pred_tbl)
sub lr, lr, #25
ldr lr, [r12, lr, lsl #2]
vmovn.i16 d0, q0
add r12, r12, lr
add r2, r0, r1
bx r12
.align 2
L(pal_pred_tbl):
.word 640f - L(pal_pred_tbl) + CONFIG_THUMB
.word 320f - L(pal_pred_tbl) + CONFIG_THUMB
.word 160f - L(pal_pred_tbl) + CONFIG_THUMB
.word 80f - L(pal_pred_tbl) + CONFIG_THUMB
.word 40f - L(pal_pred_tbl) + CONFIG_THUMB
40:
lsl r1, r1, #1
4:
vld1.8 {q1}, [r3, :128]!
subs r5, r5, #4
vtbl.8 d2, {d0}, d2
vtbl.8 d3, {d0}, d3
vst1.32 {d2[0]}, [r0, :32], r1
vst1.32 {d2[1]}, [r2, :32], r1
vst1.32 {d3[0]}, [r0, :32], r1
vst1.32 {d3[1]}, [r2, :32], r1
bgt 4b
pop {r4-r5, pc}
80:
lsl r1, r1, #1
8:
vld1.8 {q1, q2}, [r3, :128]!
subs r5, r5, #4
vtbl.8 d2, {d0}, d2
vtbl.8 d3, {d0}, d3
vst1.8 {d2}, [r0, :64], r1
vtbl.8 d4, {d0}, d4
vst1.8 {d3}, [r2, :64], r1
vtbl.8 d5, {d0}, d5
vst1.8 {d4}, [r0, :64], r1
vst1.8 {d5}, [r2, :64], r1
bgt 8b
pop {r4-r5, pc}
160:
lsl r1, r1, #1
16:
vld1.8 {q8, q9}, [r3, :128]!
subs r5, r5, #4
vld1.8 {q10, q11}, [r3, :128]!
vtbl.8 d16, {d0}, d16
vtbl.8 d17, {d0}, d17
vtbl.8 d18, {d0}, d18
vtbl.8 d19, {d0}, d19
vtbl.8 d20, {d0}, d20
vtbl.8 d21, {d0}, d21
vst1.8 {q8}, [r0, :128], r1
vtbl.8 d22, {d0}, d22
vst1.8 {q9}, [r2, :128], r1
vtbl.8 d23, {d0}, d23
vst1.8 {q10}, [r0, :128], r1
vst1.8 {q11}, [r2, :128], r1
bgt 16b
pop {r4-r5, pc}
320:
lsl r1, r1, #1
32:
vld1.8 {q8, q9}, [r3, :128]!
subs r5, r5, #2
vld1.8 {q10, q11}, [r3, :128]!
vtbl.8 d16, {d0}, d16
vtbl.8 d17, {d0}, d17
vtbl.8 d18, {d0}, d18
vtbl.8 d19, {d0}, d19
vtbl.8 d20, {d0}, d20
vtbl.8 d21, {d0}, d21
vst1.8 {q8, q9}, [r0, :128], r1
vtbl.8 d22, {d0}, d22
vtbl.8 d23, {d0}, d23
vst1.8 {q10, q11}, [r2, :128], r1
bgt 32b
pop {r4-r5, pc}
640:
sub r1, r1, #32
64:
vld1.8 {q8, q9}, [r3, :128]!
subs r5, r5, #1
vld1.8 {q10, q11}, [r3, :128]!
vtbl.8 d16, {d0}, d16
vtbl.8 d17, {d0}, d17
vtbl.8 d18, {d0}, d18
vtbl.8 d19, {d0}, d19
vtbl.8 d20, {d0}, d20
vtbl.8 d21, {d0}, d21
vst1.8 {q8, q9}, [r0, :128]!
vtbl.8 d22, {d0}, d22
vtbl.8 d23, {d0}, d23
vst1.8 {q10, q11}, [r0, :128], r1
bgt 64b
pop {r4-r5, pc}
endfunc
// void ipred_cfl_128_8bpc_neon(pixel *dst, const ptrdiff_t stride,
// const pixel *const topleft,
// const int width, const int height,
// const int16_t *ac, const int alpha);
function ipred_cfl_128_8bpc_neon, export=1
push {r4-r8, lr}
ldr r4, [sp, #24]
ldr r5, [sp, #28]
ldr r6, [sp, #32]
clz lr, r3
adr r12, L(ipred_cfl_128_tbl)
sub lr, lr, #26
ldr lr, [r12, lr, lsl #2]
vmov.i16 q0, #128 // dc
vdup.i16 q1, r6 // alpha
add r12, r12, lr
add r6, r0, r1
lsl r1, r1, #1
bx r12
.align 2
L(ipred_cfl_128_tbl):
L(ipred_cfl_splat_tbl):
.word L(ipred_cfl_splat_w16) - L(ipred_cfl_128_tbl) + CONFIG_THUMB
.word L(ipred_cfl_splat_w16) - L(ipred_cfl_128_tbl) + CONFIG_THUMB
.word L(ipred_cfl_splat_w8) - L(ipred_cfl_128_tbl) + CONFIG_THUMB
.word L(ipred_cfl_splat_w4) - L(ipred_cfl_128_tbl) + CONFIG_THUMB
L(ipred_cfl_splat_w4):
vld1.16 {q2, q3}, [r5, :128]!
vmul.i16 q2, q2, q1 // diff = ac * alpha
vmul.i16 q3, q3, q1
vshr.s16 q8, q2, #15 // sign = diff >> 15
vshr.s16 q9, q3, #15
vadd.i16 q2, q2, q8 // diff + sign
vadd.i16 q3, q3, q9
vrshr.s16 q2, q2, #6 // (diff + sign + 32) >> 6 = apply_sign()
vrshr.s16 q3, q3, #6
vadd.i16 q2, q2, q0 // dc + apply_sign()
vadd.i16 q3, q3, q0
vqmovun.s16 d4, q2 // iclip_pixel(dc + apply_sign())
vqmovun.s16 d5, q3
vst1.32 {d4[0]}, [r0, :32], r1
vst1.32 {d4[1]}, [r6, :32], r1
subs r4, r4, #4
vst1.32 {d5[0]}, [r0, :32], r1
vst1.32 {d5[1]}, [r6, :32], r1
bgt L(ipred_cfl_splat_w4)
pop {r4-r8, pc}
L(ipred_cfl_splat_w8):
vld1.16 {q8, q9}, [r5, :128]!
vld1.16 {q10, q11}, [r5, :128]!
vmul.i16 q8, q8, q1 // diff = ac * alpha
vmul.i16 q9, q9, q1
vmul.i16 q10, q10, q1
vmul.i16 q11, q11, q1
vshr.s16 q12, q8, #15 // sign = diff >> 15
vshr.s16 q13, q9, #15
vshr.s16 q14, q10, #15
vshr.s16 q15, q11, #15
vadd.i16 q8, q8, q12 // diff + sign
vadd.i16 q9, q9, q13
vadd.i16 q10, q10, q14
vadd.i16 q11, q11, q15
vrshr.s16 q8, q8, #6 // (diff + sign + 32) >> 6 = apply_sign()
vrshr.s16 q9, q9, #6
vrshr.s16 q10, q10, #6
vrshr.s16 q11, q11, #6
vadd.i16 q8, q8, q0 // dc + apply_sign()
vadd.i16 q9, q9, q0
vadd.i16 q10, q10, q0
vadd.i16 q11, q11, q0
vqmovun.s16 d16, q8 // iclip_pixel(dc + apply_sign())
vqmovun.s16 d17, q9
vqmovun.s16 d18, q10
vqmovun.s16 d19, q11
vst1.8 {d16}, [r0, :64], r1
vst1.8 {d17}, [r6, :64], r1
subs r4, r4, #4
vst1.8 {d18}, [r0, :64], r1
vst1.8 {d19}, [r6, :64], r1
bgt L(ipred_cfl_splat_w8)
pop {r4-r8, pc}
L(ipred_cfl_splat_w16):
add r12, r5, r3, lsl #1
sub r1, r1, r3
mov lr, r3
1:
vld1.16 {q8, q9}, [r5, :128]!
vmul.i16 q8, q8, q1 // diff = ac * alpha
vld1.16 {q10, q11}, [r12, :128]!
vmul.i16 q9, q9, q1
vmul.i16 q10, q10, q1
vmul.i16 q11, q11, q1
vshr.s16 q12, q8, #15 // sign = diff >> 15
vshr.s16 q13, q9, #15
vshr.s16 q14, q10, #15
vshr.s16 q15, q11, #15
vadd.i16 q8, q8, q12 // diff + sign
vadd.i16 q9, q9, q13
vadd.i16 q10, q10, q14
vadd.i16 q11, q11, q15
vrshr.s16 q8, q8, #6 // (diff + sign + 32) >> 6 = apply_sign()
vrshr.s16 q9, q9, #6
vrshr.s16 q10, q10, #6
vrshr.s16 q11, q11, #6
vadd.i16 q8, q8, q0 // dc + apply_sign()
vadd.i16 q9, q9, q0
vadd.i16 q10, q10, q0
vadd.i16 q11, q11, q0
vqmovun.s16 d16, q8 // iclip_pixel(dc + apply_sign())
vqmovun.s16 d17, q9
vqmovun.s16 d18, q10
vqmovun.s16 d19, q11
subs r3, r3, #16
vst1.16 {q8}, [r0, :128]!
vst1.16 {q9}, [r6, :128]!
bgt 1b
subs r4, r4, #2
add r5, r5, lr, lsl #1
add r12, r12, lr, lsl #1
add r0, r0, r1
add r6, r6, r1
mov r3, lr
bgt 1b
pop {r4-r8, pc}
endfunc
// void ipred_cfl_top_8bpc_neon(pixel *dst, const ptrdiff_t stride,
// const pixel *const topleft,
// const int width, const int height,
// const int16_t *ac, const int alpha);
function ipred_cfl_top_8bpc_neon, export=1
push {r4-r8, lr}
ldr r4, [sp, #24]
ldr r5, [sp, #28]
ldr r6, [sp, #32]
clz lr, r3
adr r12, L(ipred_cfl_top_tbl)
sub lr, lr, #26
ldr lr, [r12, lr, lsl #2]
vdup.16 q1, r6 // alpha
add r2, r2, #1
add r12, r12, lr
add r6, r0, r1
lsl r1, r1, #1
bx r12
.align 2
L(ipred_cfl_top_tbl):
.word 32f - L(ipred_cfl_top_tbl) + CONFIG_THUMB
.word 16f - L(ipred_cfl_top_tbl) + CONFIG_THUMB
.word 8f - L(ipred_cfl_top_tbl) + CONFIG_THUMB
.word 4f - L(ipred_cfl_top_tbl) + CONFIG_THUMB
4:
vld1.32 {d0[]}, [r2]
vpaddl.u8 d0, d0
vpadd.u16 d0, d0
vrshr.u16 d0, d0, #2
vdup.16 q0, d0[0]
b L(ipred_cfl_splat_w4)
8:
vld1.8 {d0}, [r2]
vpaddl.u8 d0, d0
vpadd.u16 d0, d0
vpadd.u16 d0, d0
vrshr.u16 d0, d0, #3
vdup.16 q0, d0[0]
b L(ipred_cfl_splat_w8)
16:
vld1.8 {q0}, [r2]
vaddl.u8 q0, d0, d1
vadd.u16 d0, d0, d1
vpadd.u16 d0, d0
vpadd.u16 d0, d0
vrshr.u16 d0, d0, #4
vdup.16 q0, d0[0]
b L(ipred_cfl_splat_w16)
32:
vld1.8 {q2, q3}, [r2]
vaddl.u8 q2, d4, d5
vaddl.u8 q3, d6, d7
vadd.u16 q0, q2, q3
vadd.u16 d0, d0, d1
vpadd.u16 d0, d0
vpadd.u16 d0, d0
vrshr.u16 d0, d0, #5
vdup.16 q0, d0[0]
b L(ipred_cfl_splat_w16)
endfunc
// void ipred_cfl_left_8bpc_neon(pixel *dst, const ptrdiff_t stride,
// const pixel *const topleft,
// const int width, const int height,
// const int16_t *ac, const int alpha);
function ipred_cfl_left_8bpc_neon, export=1
push {r4-r8, lr}
ldr r4, [sp, #24]
ldr r5, [sp, #28]
ldr r6, [sp, #32]
sub r2, r2, r4
clz lr, r3
clz r8, r4
adr r12, L(ipred_cfl_splat_tbl)
adr r7, L(ipred_cfl_left_tbl)
sub lr, lr, #26
sub r8, r8, #26
ldr lr, [r12, lr, lsl #2]
ldr r8, [r7, r8, lsl #2]
vdup.16 q1, r6 // alpha
add r12, r12, lr
add r7, r7, r8
add r6, r0, r1
lsl r1, r1, #1
bx r7
.align 2
L(ipred_cfl_left_tbl):
.word L(ipred_cfl_left_h32) - L(ipred_cfl_left_tbl) + CONFIG_THUMB
.word L(ipred_cfl_left_h16) - L(ipred_cfl_left_tbl) + CONFIG_THUMB
.word L(ipred_cfl_left_h8) - L(ipred_cfl_left_tbl) + CONFIG_THUMB
.word L(ipred_cfl_left_h4) - L(ipred_cfl_left_tbl) + CONFIG_THUMB
L(ipred_cfl_left_h4):
vld1.32 {d0[]}, [r2, :32]
vpaddl.u8 d0, d0
vpadd.u16 d0, d0
vrshr.u16 d0, d0, #2
vdup.16 q0, d0[0]
bx r12
L(ipred_cfl_left_h8):
vld1.8 {d0}, [r2, :64]
vpaddl.u8 d0, d0
vpadd.u16 d0, d0
vpadd.u16 d0, d0
vrshr.u16 d0, d0, #3
vdup.16 q0, d0[0]
bx r12
L(ipred_cfl_left_h16):
vld1.8 {q0}, [r2, :128]
vaddl.u8 q0, d0, d1
vadd.u16 d0, d0, d1
vpadd.u16 d0, d0
vpadd.u16 d0, d0
vrshr.u16 d0, d0, #4
vdup.16 q0, d0[0]
bx r12
L(ipred_cfl_left_h32):
vld1.8 {q2, q3}, [r2, :128]
vaddl.u8 q2, d4, d5
vaddl.u8 q3, d6, d7
vadd.u16 q0, q2, q3
vadd.u16 d0, d0, d1
vpadd.u16 d0, d0
vpadd.u16 d0, d0
vrshr.u16 d0, d0, #5
vdup.16 q0, d0[0]
bx r12
endfunc
// void ipred_cfl_8bpc_neon(pixel *dst, const ptrdiff_t stride,
// const pixel *const topleft,
// const int width, const int height,
// const int16_t *ac, const int alpha);
function ipred_cfl_8bpc_neon, export=1
push {r4-r8, lr}
ldr r4, [sp, #24]
ldr r5, [sp, #28]
ldr r6, [sp, #32]
sub r2, r2, r4
add r8, r3, r4 // width + height
vdup.16 q1, r6 // alpha
clz lr, r3
clz r6, r4
vdup.16 d16, r8 // width + height
adr r7, L(ipred_cfl_tbl)
rbit r8, r8 // rbit(width + height)
sub lr, lr, #22 // 26 leading bits, minus table offset 4
sub r6, r6, #26
clz r8, r8 // ctz(width + height)
ldr lr, [r7, lr, lsl #2]
ldr r6, [r7, r6, lsl #2]
neg r8, r8 // -ctz(width + height)
add r12, r7, lr
add r7, r7, r6
vshr.u16 d16, d16, #1 // (width + height) >> 1
vdup.16 d17, r8 // -ctz(width + height)
add r6, r0, r1
lsl r1, r1, #1
bx r7
.align 2
L(ipred_cfl_tbl):
.word L(ipred_cfl_h32) - L(ipred_cfl_tbl) + CONFIG_THUMB
.word L(ipred_cfl_h16) - L(ipred_cfl_tbl) + CONFIG_THUMB
.word L(ipred_cfl_h8) - L(ipred_cfl_tbl) + CONFIG_THUMB
.word L(ipred_cfl_h4) - L(ipred_cfl_tbl) + CONFIG_THUMB
.word L(ipred_cfl_w32) - L(ipred_cfl_tbl) + CONFIG_THUMB
.word L(ipred_cfl_w16) - L(ipred_cfl_tbl) + CONFIG_THUMB
.word L(ipred_cfl_w8) - L(ipred_cfl_tbl) + CONFIG_THUMB
.word L(ipred_cfl_w4) - L(ipred_cfl_tbl) + CONFIG_THUMB
L(ipred_cfl_h4):
vld1.32 {d0[]}, [r2, :32]!
vpaddl.u8 d0, d0
vpadd.i16 d0, d0
bx r12
L(ipred_cfl_w4):
add r2, r2, #1
vld1.32 {d1[]}, [r2]
vadd.i16 d0, d0, d16
vpaddl.u8 d1, d1
vpadd.u16 d1, d1
cmp r4, #4
vadd.i16 d0, d0, d1
vshl.u16 d0, d0, d17
beq 1f
// h = 8/16
movw lr, #(0x3334/2)
movw r8, #(0x5556/2)
cmp r4, #16
it ne
movne lr, r8
vdup.16 d18, lr
vqdmulh.s16 d0, d0, d18
1:
vdup.16 q0, d0[0]
b L(ipred_cfl_splat_w4)
L(ipred_cfl_h8):
vld1.8 {d0}, [r2, :64]!
vpaddl.u8 d0, d0
vpadd.i16 d0, d0
vpadd.i16 d0, d0
bx r12
L(ipred_cfl_w8):
add r2, r2, #1
vld1.8 {d1}, [r2]
vadd.i16 d0, d0, d16
vpaddl.u8 d1, d1
vpadd.i16 d1, d1
vpadd.i16 d1, d1
cmp r4, #8
vadd.i16 d0, d0, d1
vshl.u16 d0, d0, d17
beq 1f
// h = 4/16/32
cmp r4, #32
movw lr, #(0x3334/2)
movw r8, #(0x5556/2)
it ne
movne lr, r8
vdup.16 d18, lr
vqdmulh.s16 d0, d0, d18
1:
vdup.16 q0, d0[0]
b L(ipred_cfl_splat_w8)
L(ipred_cfl_h16):
vld1.8 {q0}, [r2, :128]!
vaddl.u8 q0, d0, d1
vadd.i16 d0, d0, d1
vpadd.i16 d0, d0
vpadd.i16 d0, d0
bx r12
L(ipred_cfl_w16):
add r2, r2, #1
vld1.8 {q2}, [r2]
vadd.i16 d0, d0, d16
vaddl.u8 q2, d4, d5
vadd.i16 d4, d4, d5
vpadd.i16 d4, d4
vpadd.i16 d4, d4
cmp r4, #16
vadd.i16 d0, d0, d4
vshl.u16 d0, d0, d17
beq 1f
// h = 4/8/32/64
tst r4, #(32+16+8) // 16 added to make a consecutive bitmask
movw lr, #(0x3334/2)
movw r8, #(0x5556/2)
it ne
movne lr, r8
vdup.16 d18, lr
vqdmulh.s16 d0, d0, d18
1:
vdup.16 q0, d0[0]
b L(ipred_cfl_splat_w16)
L(ipred_cfl_h32):
vld1.8 {q2, q3}, [r2, :128]!
vaddl.u8 q2, d4, d5
vaddl.u8 q3, d6, d7
vadd.i16 q0, q2, q3
vadd.i16 d0, d0, d1
vpadd.i16 d0, d0
vpadd.i16 d0, d0
bx r12
L(ipred_cfl_w32):
add r2, r2, #1
vld1.8 {q2, q3}, [r2]
vadd.i16 d0, d0, d16
vaddl.u8 q2, d4, d5
vaddl.u8 q3, d6, d7
vadd.i16 q2, q2, q3
vadd.i16 d4, d4, d5
vpadd.i16 d4, d4
vpadd.i16 d4, d4
cmp r4, #32
vadd.i16 d0, d0, d4
vshl.u16 d0, d0, d17
beq 1f
// h = 8/16/64
cmp r4, #8
movw lr, #(0x3334/2)
movw r8, #(0x5556/2)
it ne
movne lr, r8
vdup.16 d18, lr
vqdmulh.s16 d0, d0, d18
1:
vdup.16 q0, d0[0]
b L(ipred_cfl_splat_w16)
endfunc
// void cfl_ac_420_8bpc_neon(int16_t *const ac, const pixel *const ypx,
// const ptrdiff_t stride, const int w_pad,
// const int h_pad, const int cw, const int ch);
function ipred_cfl_ac_420_8bpc_neon, export=1
push {r4-r8,lr}
ldr r4, [sp, #24]
ldr r5, [sp, #28]
ldr r6, [sp, #32]
clz r8, r5
lsl r4, r4, #2
adr r7, L(ipred_cfl_ac_420_tbl)
sub r8, r8, #27
ldr r8, [r7, r8, lsl #2]
vmov.i16 q8, #0
vmov.i16 q9, #0
vmov.i16 q10, #0
vmov.i16 q11, #0
add r7, r7, r8
sub r8, r6, r4 // height - h_pad
rbit lr, r5 // rbit(width)
rbit r12, r6 // rbit(height)
clz lr, lr // ctz(width)
clz r12, r12 // ctz(height)
add lr, lr, r12 // log2sz
add r12, r1, r2
vdup.32 d31, lr
lsl r2, r2, #1
vneg.s32 d31, d31 // -log2sz
bx r7
.align 2
L(ipred_cfl_ac_420_tbl):
.word L(ipred_cfl_ac_420_w16) - L(ipred_cfl_ac_420_tbl) + CONFIG_THUMB
.word L(ipred_cfl_ac_420_w8) - L(ipred_cfl_ac_420_tbl) + CONFIG_THUMB
.word L(ipred_cfl_ac_420_w4) - L(ipred_cfl_ac_420_tbl) + CONFIG_THUMB
L(ipred_cfl_ac_420_w4):
1: // Copy and subsample input
vld1.8 {d0}, [r1, :64], r2
vld1.8 {d2}, [r12, :64], r2
vld1.8 {d1}, [r1, :64], r2
vld1.8 {d3}, [r12, :64], r2
vpaddl.u8 q0, q0
vpaddl.u8 q1, q1
vadd.i16 q0, q0, q1
vshl.i16 q0, q0, #1
subs r8, r8, #2
vst1.16 {q0}, [r0, :128]!
vadd.i16 q8, q8, q0
bgt 1b
cmp r4, #0
vmov d0, d1
vmov d2, d1
vmov d3, d1
L(ipred_cfl_ac_420_w4_hpad):
beq 3f // This assumes that all callers already did "cmp r4, #0"
2: // Vertical padding (h_pad > 0)
subs r4, r4, #4
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q8, q8, q1
bgt 2b
3:
L(ipred_cfl_ac_420_w4_calc_subtract_dc):
// Aggregate the sums
vadd.i16 q0, q8, q9
vadd.i16 q1, q10, q11
vpaddl.u16 q0, q0
vpaddl.u16 q1, q1
vadd.i32 q0, q1
vadd.i32 d0, d0, d1
vpadd.i32 d0, d0, d0 // sum
sub r0, r0, r6, lsl #3
vrshl.u32 d16, d0, d31 // (sum + (1 << (log2sz - 1))) >>= log2sz
vdup.16 q8, d16[0]
L(ipred_cfl_ac_420_w4_subtract_dc):
6: // Subtract dc from ac
vld1.16 {q0, q1}, [r0, :128]
subs r6, r6, #4
vsub.i16 q0, q0, q8
vsub.i16 q1, q1, q8
vst1.16 {q0, q1}, [r0, :128]!
bgt 6b
pop {r4-r8, pc}
L(ipred_cfl_ac_420_w8):
cmp r3, #0
bne L(ipred_cfl_ac_420_w8_wpad)
1: // Copy and subsample input, without padding
vld1.8 {q0}, [r1, :128], r2
vld1.8 {q1}, [r12, :128], r2
vld1.8 {q2}, [r1, :128], r2
vpaddl.u8 q0, q0
vld1.8 {q3}, [r12, :128], r2
vpaddl.u8 q1, q1
vpaddl.u8 q2, q2
vpaddl.u8 q3, q3
vadd.i16 q0, q0, q1
vadd.i16 q2, q2, q3
vshl.i16 q0, q0, #1
vshl.i16 q1, q2, #1
subs r8, r8, #2
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
bgt 1b
cmp r4, #0
vmov q0, q1
b L(ipred_cfl_ac_420_w8_hpad)
L(ipred_cfl_ac_420_w8_wpad):
1: // Copy and subsample input, padding 4
vld1.16 {d0}, [r1, :64], r2
vld1.16 {d2}, [r12, :64], r2
vld1.16 {d1}, [r1, :64], r2
vld1.16 {d3}, [r12, :64], r2
vpaddl.u8 q0, q0
vpaddl.u8 q1, q1
vadd.i16 q0, q0, q1
vshl.i16 q0, q0, #1
vdup.16 d3, d1[3]
vmov d2, d1
vdup.16 d1, d0[3]
subs r8, r8, #2
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
bgt 1b
cmp r4, #0
vmov q0, q1
L(ipred_cfl_ac_420_w8_hpad):
beq 3f // This assumes that all callers already did "cmp r4, #0"
2: // Vertical padding (h_pad > 0)
subs r4, r4, #4
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q10, q10, q0
vadd.i16 q11, q11, q1
bgt 2b
3:
// Double the height and reuse the w4 summing/subtracting
lsl r6, r6, #1
b L(ipred_cfl_ac_420_w4_calc_subtract_dc)
L(ipred_cfl_ac_420_w16):
adr r7, L(ipred_cfl_ac_420_w16_tbl)
ldr r3, [r7, r3, lsl #2]
add r7, r7, r3
bx r7
.align 2
L(ipred_cfl_ac_420_w16_tbl):
.word L(ipred_cfl_ac_420_w16_wpad0) - L(ipred_cfl_ac_420_w16_tbl) + CONFIG_THUMB
.word L(ipred_cfl_ac_420_w16_wpad1) - L(ipred_cfl_ac_420_w16_tbl) + CONFIG_THUMB
.word L(ipred_cfl_ac_420_w16_wpad2) - L(ipred_cfl_ac_420_w16_tbl) + CONFIG_THUMB
.word L(ipred_cfl_ac_420_w16_wpad3) - L(ipred_cfl_ac_420_w16_tbl) + CONFIG_THUMB
L(ipred_cfl_ac_420_w16_wpad0):
1: // Copy and subsample input, without padding
vld1.8 {q0, q1}, [r1, :128], r2
vld1.8 {q2, q3}, [r12, :128], r2
vpaddl.u8 q0, q0
vld1.8 {q12, q13}, [r1, :128], r2
vpaddl.u8 q1, q1
vpaddl.u8 q2, q2
vpaddl.u8 q3, q3
vadd.i16 q0, q0, q2
vadd.i16 q1, q1, q3
vld1.8 {q2, q3}, [r12, :128], r2
vpaddl.u8 q12, q12
vpaddl.u8 q13, q13
vpaddl.u8 q2, q2
vpaddl.u8 q3, q3
vadd.i16 q12, q12, q2
vadd.i16 q13, q13, q3
vshl.i16 q0, q0, #1
vshl.i16 q1, q1, #1
vshl.i16 q2, q12, #1
vshl.i16 q3, q13, #1
subs r8, r8, #2
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
vst1.16 {q2, q3}, [r0, :128]!
vadd.i16 q10, q10, q2
vadd.i16 q11, q11, q3
bgt 1b
cmp r4, #0
vmov q0, q2
vmov q1, q3
b L(ipred_cfl_ac_420_w16_hpad)
L(ipred_cfl_ac_420_w16_wpad1):
1: // Copy and subsample input, padding 4
vldr d2, [r1, #16]
vld1.8 {q0}, [r1, :128], r2
vldr d6, [r12, #16]
vld1.8 {q2}, [r12, :128], r2
vpaddl.u8 d2, d2
vldr d26, [r1, #16]
vpaddl.u8 q0, q0
vld1.8 {q12}, [r1, :128], r2
vpaddl.u8 d6, d6
vldr d30, [r12, #16]
vpaddl.u8 q2, q2
vld1.8 {q14}, [r12, :128], r2
vpaddl.u8 d26, d26
vpaddl.u8 q12, q12
vpaddl.u8 d30, d30
vpaddl.u8 q14, q14
vadd.i16 d2, d2, d6
vadd.i16 q0, q0, q2
vadd.i16 d26, d26, d30
vadd.i16 q12, q12, q14
vshl.i16 d2, d2, #1
vshl.i16 q0, q0, #1
vshl.i16 d6, d26, #1
vshl.i16 q2, q12, #1
vdup.16 d3, d2[3]
vdup.16 d7, d6[3]
subs r8, r8, #2
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
vst1.16 {q2, q3}, [r0, :128]!
vadd.i16 q10, q10, q2
vadd.i16 q11, q11, q3
bgt 1b
cmp r4, #0
vmov q0, q2
vmov q1, q3
b L(ipred_cfl_ac_420_w16_hpad)
L(ipred_cfl_ac_420_w16_wpad2):
1: // Copy and subsample input, padding 8
vld1.8 {q0}, [r1, :128], r2
vld1.8 {q1}, [r12, :128], r2
vld1.8 {q2}, [r1, :128], r2
vpaddl.u8 q0, q0
vld1.8 {q3}, [r12, :128], r2
vpaddl.u8 q1, q1
vpaddl.u8 q2, q2
vpaddl.u8 q3, q3
vadd.i16 q0, q0, q1
vadd.i16 q2, q2, q3
vshl.i16 q0, q0, #1
vshl.i16 q2, q2, #1
vdup.16 q1, d1[3]
vdup.16 q3, d5[3]
subs r8, r8, #2
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
vst1.16 {q2, q3}, [r0, :128]!
vadd.i16 q10, q10, q2
vadd.i16 q11, q11, q3
bgt 1b
cmp r4, #0
vmov q0, q2
vmov q1, q3
b L(ipred_cfl_ac_420_w16_hpad)
L(ipred_cfl_ac_420_w16_wpad3):
1: // Copy and subsample input, padding 12
vld1.8 {d0}, [r1, :64], r2
vld1.8 {d1}, [r12, :64], r2
vld1.8 {d4}, [r1, :64], r2
vpaddl.u8 q0, q0
vld1.8 {d5}, [r12, :64], r2
vpaddl.u8 q2, q2
vadd.i16 d0, d0, d1
vadd.i16 d4, d4, d5
vshl.i16 d0, d0, #1
vshl.i16 d4, d4, #1
vdup.16 q1, d0[3]
vdup.16 q3, d4[3]
vdup.16 d1, d0[3]
vdup.16 d5, d4[3]
subs r8, r8, #2
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
vst1.16 {q2, q3}, [r0, :128]!
vadd.i16 q10, q10, q2
vadd.i16 q11, q11, q3
bgt 1b
cmp r4, #0
vmov q0, q2
vmov q1, q3
b L(ipred_cfl_ac_420_w16_hpad)
L(ipred_cfl_ac_420_w16_hpad):
beq 3f // This assumes that all callers already did "cmp r4, #0"
2: // Vertical padding (h_pad > 0)
subs r4, r4, #2
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
vst1.16 {q2, q3}, [r0, :128]!
vadd.i16 q10, q10, q2
vadd.i16 q11, q11, q3
bgt 2b
3:
// Quadruple the height and reuse the w4 summing/subtracting
lsl r6, r6, #2
b L(ipred_cfl_ac_420_w4_calc_subtract_dc)
endfunc
// void cfl_ac_422_8bpc_neon(int16_t *const ac, const pixel *const ypx,
// const ptrdiff_t stride, const int w_pad,
// const int h_pad, const int cw, const int ch);
function ipred_cfl_ac_422_8bpc_neon, export=1
push {r4-r8,lr}
ldr r4, [sp, #24]
ldr r5, [sp, #28]
ldr r6, [sp, #32]
clz r8, r5
lsl r4, r4, #2
adr r7, L(ipred_cfl_ac_422_tbl)
sub r8, r8, #27
ldr r8, [r7, r8, lsl #2]
vmov.i16 q8, #0
vmov.i16 q9, #0
vmov.i16 q10, #0
vmov.i16 q11, #0
add r7, r7, r8
sub r8, r6, r4 // height - h_pad
rbit lr, r5 // rbit(width)
rbit r12, r6 // rbit(height)
clz lr, lr // ctz(width)
clz r12, r12 // ctz(height)
add lr, lr, r12 // log2sz
add r12, r1, r2
vdup.32 d31, lr
lsl r2, r2, #1
vneg.s32 d31, d31 // -log2sz
bx r7
.align 2
L(ipred_cfl_ac_422_tbl):
.word L(ipred_cfl_ac_422_w16) - L(ipred_cfl_ac_422_tbl) + CONFIG_THUMB
.word L(ipred_cfl_ac_422_w8) - L(ipred_cfl_ac_422_tbl) + CONFIG_THUMB
.word L(ipred_cfl_ac_422_w4) - L(ipred_cfl_ac_422_tbl) + CONFIG_THUMB
L(ipred_cfl_ac_422_w4):
1: // Copy and subsample input
vld1.8 {d0}, [r1, :64], r2
vld1.8 {d1}, [r12, :64], r2
vld1.8 {d2}, [r1, :64], r2
vld1.8 {d3}, [r12, :64], r2
vpaddl.u8 q0, q0
vpaddl.u8 q1, q1
vshl.i16 q0, q0, #2
vshl.i16 q1, q1, #2
subs r8, r8, #4
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
bgt 1b
cmp r4, #0
vmov d0, d3
vmov d1, d3
vmov d2, d3
b L(ipred_cfl_ac_420_w4_hpad)
L(ipred_cfl_ac_422_w8):
cmp r3, #0
bne L(ipred_cfl_ac_422_w8_wpad)
1: // Copy and subsample input, without padding
vld1.8 {q0}, [r1, :128], r2
vld1.8 {q1}, [r12, :128], r2
vld1.8 {q2}, [r1, :128], r2
vpaddl.u8 q0, q0
vld1.8 {q3}, [r12, :128], r2
vpaddl.u8 q1, q1
vpaddl.u8 q2, q2
vpaddl.u8 q3, q3
vshl.i16 q0, q0, #2
vshl.i16 q1, q1, #2
vshl.i16 q2, q2, #2
vshl.i16 q3, q3, #2
subs r8, r8, #4
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
vst1.16 {q2, q3}, [r0, :128]!
vadd.i16 q10, q10, q2
vadd.i16 q11, q11, q3
bgt 1b
cmp r4, #0
vmov q0, q3
vmov q1, q3
b L(ipred_cfl_ac_420_w8_hpad)
L(ipred_cfl_ac_422_w8_wpad):
1: // Copy and subsample input, padding 4
vld1.8 {d0}, [r1, :64], r2
vld1.8 {d1}, [r12, :64], r2
vld1.8 {d2}, [r1, :64], r2
vld1.8 {d3}, [r12, :64], r2
vpaddl.u8 q0, q0
vpaddl.u8 q1, q1
vshl.i16 q0, q0, #2
vshl.i16 q1, q1, #2
vdup.16 d7, d3[3]
vmov d6, d3
vdup.16 d5, d2[3]
vmov d4, d2
vdup.16 d3, d1[3]
vmov d2, d1
vdup.16 d1, d0[3]
subs r8, r8, #4
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
vst1.16 {q2, q3}, [r0, :128]!
vadd.i16 q10, q10, q2
vadd.i16 q11, q11, q3
bgt 1b
cmp r4, #0
vmov q0, q3
vmov q1, q3
b L(ipred_cfl_ac_420_w8_hpad)
L(ipred_cfl_ac_422_w16):
adr r7, L(ipred_cfl_ac_422_w16_tbl)
ldr r3, [r7, r3, lsl #2]
add r7, r7, r3
bx r7
.align 2
L(ipred_cfl_ac_422_w16_tbl):
.word L(ipred_cfl_ac_422_w16_wpad0) - L(ipred_cfl_ac_422_w16_tbl) + CONFIG_THUMB
.word L(ipred_cfl_ac_422_w16_wpad1) - L(ipred_cfl_ac_422_w16_tbl) + CONFIG_THUMB
.word L(ipred_cfl_ac_422_w16_wpad2) - L(ipred_cfl_ac_422_w16_tbl) + CONFIG_THUMB
.word L(ipred_cfl_ac_422_w16_wpad3) - L(ipred_cfl_ac_422_w16_tbl) + CONFIG_THUMB
L(ipred_cfl_ac_422_w16_wpad0):
1: // Copy and subsample input, without padding
vld1.8 {q0, q1}, [r1, :128], r2
vld1.8 {q2, q3}, [r12, :128], r2
vpaddl.u8 q0, q0
vpaddl.u8 q1, q1
vpaddl.u8 q2, q2
vpaddl.u8 q3, q3
vshl.i16 q0, q0, #2
vshl.i16 q1, q1, #2
vshl.i16 q2, q2, #2
vshl.i16 q3, q3, #2
subs r8, r8, #2
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
vst1.16 {q2, q3}, [r0, :128]!
vadd.i16 q10, q10, q2
vadd.i16 q11, q11, q3
bgt 1b
cmp r4, #0
vmov q0, q2
vmov q1, q3
b L(ipred_cfl_ac_420_w16_hpad)
L(ipred_cfl_ac_422_w16_wpad1):
1: // Copy and subsample input, padding 4
vldr d2, [r1, #16]
vld1.8 {q0}, [r1, :128], r2
vldr d6, [r12, #16]
vld1.8 {q2}, [r12, :128], r2
vpaddl.u8 d2, d2
vpaddl.u8 q0, q0
vpaddl.u8 d6, d6
vpaddl.u8 q2, q2
vshl.i16 d2, d2, #2
vshl.i16 q0, q0, #2
vshl.i16 d6, d6, #2
vshl.i16 q2, q2, #2
vdup.16 d3, d2[3]
vdup.16 d7, d6[3]
subs r8, r8, #2
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
vst1.16 {q2, q3}, [r0, :128]!
vadd.i16 q10, q10, q2
vadd.i16 q11, q11, q3
bgt 1b
cmp r4, #0
vmov q0, q2
vmov q1, q3
b L(ipred_cfl_ac_420_w16_hpad)
L(ipred_cfl_ac_422_w16_wpad2):
1: // Copy and subsample input, padding 8
vld1.8 {q0}, [r1, :128], r2
vld1.8 {q2}, [r12, :128], r2
vpaddl.u8 q0, q0
vpaddl.u8 q2, q2
vshl.i16 q0, q0, #2
vshl.i16 q2, q2, #2
vdup.16 q1, d1[3]
vdup.16 q3, d5[3]
subs r8, r8, #2
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
vst1.16 {q2, q3}, [r0, :128]!
vadd.i16 q10, q10, q2
vadd.i16 q11, q11, q3
bgt 1b
cmp r4, #0
vmov q0, q2
vmov q1, q3
b L(ipred_cfl_ac_420_w16_hpad)
L(ipred_cfl_ac_422_w16_wpad3):
1: // Copy and subsample input, padding 12
vld1.8 {d0}, [r1, :64], r2
vld1.8 {d1}, [r12, :64], r2
vpaddl.u8 q0, q0
vshl.i16 q0, q0, #2
vdup.16 q3, d1[3]
vdup.16 q1, d0[3]
vdup.16 d5, d1[3]
vmov d4, d1
vdup.16 d1, d0[3]
subs r8, r8, #2
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
vst1.16 {q2, q3}, [r0, :128]!
vadd.i16 q10, q10, q2
vadd.i16 q11, q11, q3
bgt 1b
cmp r4, #0
vmov q0, q2
vmov q1, q3
b L(ipred_cfl_ac_420_w16_hpad)
endfunc
// void cfl_ac_444_8bpc_neon(int16_t *const ac, const pixel *const ypx,
// const ptrdiff_t stride, const int w_pad,
// const int h_pad, const int cw, const int ch);
function ipred_cfl_ac_444_8bpc_neon, export=1
push {r4-r8,lr}
ldr r4, [sp, #24]
ldr r5, [sp, #28]
ldr r6, [sp, #32]
clz r8, r5
lsl r4, r4, #2
adr r7, L(ipred_cfl_ac_444_tbl)
sub r8, r8, #26
ldr r8, [r7, r8, lsl #2]
vmov.i16 q8, #0
vmov.i16 q9, #0
vmov.i16 q10, #0
vmov.i16 q11, #0
add r7, r7, r8
sub r8, r6, r4 // height - h_pad
rbit lr, r5 // rbit(width)
rbit r12, r6 // rbit(height)
clz lr, lr // ctz(width)
clz r12, r12 // ctz(height)
add lr, lr, r12 // log2sz
add r12, r1, r2
vdup.32 d31, lr
lsl r2, r2, #1
vneg.s32 d31, d31 // -log2sz
bx r7
.align 2
L(ipred_cfl_ac_444_tbl):
.word L(ipred_cfl_ac_444_w32) - L(ipred_cfl_ac_444_tbl) + CONFIG_THUMB
.word L(ipred_cfl_ac_444_w16) - L(ipred_cfl_ac_444_tbl) + CONFIG_THUMB
.word L(ipred_cfl_ac_444_w8) - L(ipred_cfl_ac_444_tbl) + CONFIG_THUMB
.word L(ipred_cfl_ac_444_w4) - L(ipred_cfl_ac_444_tbl) + CONFIG_THUMB
L(ipred_cfl_ac_444_w4):
1: // Copy and expand input
vld1.32 {d0[]}, [r1, :32], r2
vld1.32 {d0[1]}, [r12, :32], r2
vld1.32 {d2[]}, [r1, :32], r2
vld1.32 {d2[1]}, [r12, :32], r2
vshll.u8 q0, d0, #3
vshll.u8 q1, d2, #3
subs r8, r8, #4
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
bgt 1b
cmp r4, #0
vmov d0, d3
vmov d1, d3
vmov d2, d3
b L(ipred_cfl_ac_420_w4_hpad)
L(ipred_cfl_ac_444_w8):
1: // Copy and expand input
vld1.16 {d0}, [r1, :64], r2
vld1.16 {d2}, [r12, :64], r2
vld1.16 {d4}, [r1, :64], r2
vshll.u8 q0, d0, #3
vld1.16 {d6}, [r12, :64], r2
vshll.u8 q1, d2, #3
vshll.u8 q2, d4, #3
vshll.u8 q3, d6, #3
subs r8, r8, #4
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
vst1.16 {q2, q3}, [r0, :128]!
vadd.i16 q10, q10, q2
vadd.i16 q11, q11, q3
bgt 1b
cmp r4, #0
vmov q0, q3
vmov q1, q3
b L(ipred_cfl_ac_420_w8_hpad)
L(ipred_cfl_ac_444_w16):
cmp r3, #0
bne L(ipred_cfl_ac_444_w16_wpad)
1: // Copy and expand input, without padding
vld1.8 {q1}, [r1, :128], r2
vld1.8 {q3}, [r12, :128], r2
vshll.u8 q0, d2, #3
vshll.u8 q1, d3, #3
vshll.u8 q2, d6, #3
vshll.u8 q3, d7, #3
subs r8, r8, #2
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
vst1.16 {q2, q3}, [r0, :128]!
vadd.i16 q10, q10, q2
vadd.i16 q11, q11, q3
bgt 1b
cmp r4, #0
vmov q0, q2
vmov q1, q3
b L(ipred_cfl_ac_420_w16_hpad)
L(ipred_cfl_ac_444_w16_wpad):
1: // Copy and expand input, padding 8
vld1.8 {d0}, [r1, :64], r2
vld1.8 {d4}, [r12, :64], r2
vshll.u8 q0, d0, #3
vshll.u8 q2, d4, #3
vdup.16 q1, d1[3]
vdup.16 q3, d5[3]
subs r8, r8, #2
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
vst1.16 {q2, q3}, [r0, :128]!
vadd.i16 q10, q10, q2
vadd.i16 q11, q11, q3
bgt 1b
cmp r4, #0
vmov q0, q2
vmov q1, q3
b L(ipred_cfl_ac_420_w16_hpad)
L(ipred_cfl_ac_444_w32):
adr r7, L(ipred_cfl_ac_444_w32_tbl)
ldr r3, [r7, r3, lsl #1] // (w3>>1) << 2
add r7, r7, r3
bx r7
.align 2
L(ipred_cfl_ac_444_w32_tbl):
.word L(ipred_cfl_ac_444_w32_wpad0) - L(ipred_cfl_ac_444_w32_tbl) + CONFIG_THUMB
.word L(ipred_cfl_ac_444_w32_wpad2) - L(ipred_cfl_ac_444_w32_tbl) + CONFIG_THUMB
.word L(ipred_cfl_ac_444_w32_wpad4) - L(ipred_cfl_ac_444_w32_tbl) + CONFIG_THUMB
.word L(ipred_cfl_ac_444_w32_wpad6) - L(ipred_cfl_ac_444_w32_tbl) + CONFIG_THUMB
L(ipred_cfl_ac_444_w32_wpad0):
1: // Copy and expand input, without padding
vld1.8 {q2, q3}, [r1, :128], r2
vld1.8 {q13, q14}, [r12, :128], r2
vshll.u8 q0, d4, #3
vshll.u8 q1, d5, #3
vshll.u8 q2, d6, #3
vshll.u8 q3, d7, #3
vshll.u8 q12, d26, #3
vshll.u8 q13, d27, #3
subs r8, r8, #2
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
vshll.u8 q0, d28, #3
vshll.u8 q1, d29, #3
vst1.16 {q2, q3}, [r0, :128]!
vadd.i16 q10, q10, q2
vadd.i16 q11, q11, q3
vst1.16 {q12, q13}, [r0, :128]!
vadd.i16 q8, q8, q12
vadd.i16 q9, q9, q13
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q10, q10, q0
vadd.i16 q11, q11, q1
bgt 1b
cmp r4, #0
b L(ipred_cfl_ac_444_w32_hpad)
L(ipred_cfl_ac_444_w32_wpad2):
1: // Copy and expand input, padding 8
vldr d4, [r1, #16]
vld1.8 {q1}, [r1, :128], r2
vldr d28, [r12, #16]
vld1.8 {q13}, [r12, :128], r2
vshll.u8 q2, d4, #3
vshll.u8 q0, d2, #3
vshll.u8 q1, d3, #3
vshll.u8 q12, d26, #3
vshll.u8 q13, d27, #3
vdup.16 q3, d5[3]
subs r8, r8, #2
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
vshll.u8 q0, d28, #3
vst1.16 {q2, q3}, [r0, :128]!
vadd.i16 q10, q10, q2
vadd.i16 q11, q11, q3
vdup.16 q1, d1[3]
vst1.16 {q12, q13}, [r0, :128]!
vadd.i16 q8, q8, q12
vadd.i16 q9, q9, q13
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q10, q10, q0
vadd.i16 q11, q11, q1
bgt 1b
cmp r4, #0
b L(ipred_cfl_ac_444_w32_hpad)
L(ipred_cfl_ac_444_w32_wpad4):
1: // Copy and expand input, padding 16
vld1.8 {q1}, [r1, :128], r2
vld1.8 {q13}, [r12, :128], r2
vshll.u8 q0, d2, #3
vshll.u8 q1, d3, #3
vshll.u8 q12, d26, #3
vshll.u8 q13, d27, #3
vdup.16 q2, d3[3]
vdup.16 q3, d3[3]
subs r8, r8, #2
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
vdup.16 q0, d27[3]
vdup.16 q1, d27[3]
vst1.16 {q2, q3}, [r0, :128]!
vadd.i16 q10, q10, q2
vadd.i16 q11, q11, q3
vst1.16 {q12, q13}, [r0, :128]!
vadd.i16 q8, q8, q12
vadd.i16 q9, q9, q13
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q10, q10, q0
vadd.i16 q11, q11, q1
bgt 1b
cmp r4, #0
b L(ipred_cfl_ac_444_w32_hpad)
L(ipred_cfl_ac_444_w32_wpad6):
1: // Copy and expand input, padding 24
vld1.8 {d0}, [r1, :64], r2
vld1.8 {d24}, [r12, :64], r2
vshll.u8 q0, d0, #3
vshll.u8 q12, d24, #3
subs r8, r8, #2
vdup.16 q1, d1[3]
vdup.16 q2, d1[3]
vdup.16 q3, d1[3]
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q8, q8, q0
vadd.i16 q9, q9, q1
vdup.16 q13, d25[3]
vdup.16 q0, d25[3]
vdup.16 q1, d25[3]
vst1.16 {q2, q3}, [r0, :128]!
vadd.i16 q10, q10, q2
vadd.i16 q11, q11, q3
vst1.16 {q12, q13}, [r0, :128]!
vadd.i16 q8, q8, q12
vadd.i16 q9, q9, q13
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q10, q10, q0
vadd.i16 q11, q11, q1
bgt 1b
cmp r4, #0
L(ipred_cfl_ac_444_w32_hpad):
beq 3f // This assumes that all callers already did "cmp r4, #0"
2: // Vertical padding (h_pad > 0)
subs r4, r4, #1
vst1.16 {q12, q13}, [r0, :128]!
vadd.i16 q8, q8, q12
vadd.i16 q9, q9, q13
vst1.16 {q0, q1}, [r0, :128]!
vadd.i16 q10, q10, q0
vadd.i16 q11, q11, q1
bgt 2b
3:
// Multiply the height by eight and reuse the w4 subtracting
lsl r6, r6, #3
// Aggregate the sums, with wider intermediates earlier than in
// ipred_cfl_ac_420_w8_calc_subtract_dc.
vpaddl.u16 q0, q8
vpaddl.u16 q1, q9
vpaddl.u16 q2, q10
vpaddl.u16 q3, q11
vadd.i32 q0, q0, q1
vadd.i32 q2, q2, q3
vadd.i32 q0, q0, q2
vadd.i32 d0, d0, d1
vpadd.i32 d0, d0, d0 // sum
sub r0, r0, r6, lsl #3
vrshl.u32 d16, d0, d31 // (sum + (1 << (log2sz - 1))) >>= log2sz
vdup.16 q8, d16[0]
b L(ipred_cfl_ac_420_w4_subtract_dc)
endfunc