diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
| commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
| tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /third_party/dav1d/src/arm/32/ipred.S | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip | |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/dav1d/src/arm/32/ipred.S')
| -rw-r--r-- | third_party/dav1d/src/arm/32/ipred.S | 2937 |
1 files changed, 2937 insertions, 0 deletions
diff --git a/third_party/dav1d/src/arm/32/ipred.S b/third_party/dav1d/src/arm/32/ipred.S new file mode 100644 index 0000000000..ff55d95d4a --- /dev/null +++ b/third_party/dav1d/src/arm/32/ipred.S @@ -0,0 +1,2937 @@ +/* + * 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] + vmov.i8 q0, #128 + 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: + vmov.i8 q1, #128 +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: + vmov.i8 q1, #128 + sub r1, r1, #32 +64: + vst1.8 {d0, d1, d2, d3}, [r0, :128]! + vst1.8 {d0, d1, d2, d3}, [r12, :128]! + 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]! + vst1.8 {d0, d1, d2, d3}, [r12, :128]! + vst1.8 {d0, d1, d2, d3}, [r0, :128], r1 + vst1.8 {d0, d1, d2, d3}, [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] + sub r1, r1, #32 +64: + vst1.8 {d0, d1, d2, d3}, [r0, :128]! + vst1.8 {d0, d1, d2, d3}, [r12, :128]! + 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]! + vst1.8 {d0, d1, d2, d3}, [r12, :128]! + vst1.8 {d0, d1, d2, d3}, [r0, :128], r1 + vst1.8 {d0, d1, d2, d3}, [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): + vmov.8 q1, q0 + sub r1, r1, #32 +1: + vst1.8 {d0, d1, d2, d3}, [r0, :128]! + vst1.8 {d0, d1, d2, d3}, [r12, :128]! + 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]! + vst1.8 {d0, d1, d2, d3}, [r12, :128]! + vst1.8 {d0, d1, d2, d3}, [r0, :128], r1 + vst1.8 {d0, d1, d2, d3}, [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 + add r2, r2, #1 + vpadd.u16 d0, d0 + bx r3 +L(ipred_dc_w4): + 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 + add r2, r2, #1 + vpadd.u16 d0, d0 + bx r3 +L(ipred_dc_w8): + 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 + add r2, r2, #1 + vpadd.u16 d0, d0 + bx r3 +L(ipred_dc_w16): + 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 + add r2, r2, #1 + vpadd.u16 d0, d0 + bx r3 +L(ipred_dc_w32): + 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 + add r2, r2, #1 + vpadd.u16 d0, d0 + bx r3 +L(ipred_dc_w64): + 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) + and r5, r4, #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] +2: + vst1.8 {d0, d1, d2, d3}, [r0, :128]! + vst1.8 {d0, d1, d2, d3}, [r12, :128]! + 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]! + vst1.8 {d0, d1, d2, d3}, [r12, :128]! + vst1.8 {d0, d1, d2, d3}, [r0, :128], r1 + vst1.8 {d0, d1, d2, d3}, [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 + ldrd r4, r5, [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 + sub r2, r2, #2 + mov r7, #-2 + 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) + 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 + vmov d0, d1 // move top from [4-7] to [0-3] + bgt 4b + pop {r4-r8, pc} +80: + vld1.8 {d0}, [r8] // top (0-7) + 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 + vst1.8 {d4}, [r0, :64], r1 + vmovl.u8 q0, d5 + vst1.8 {d5}, [r6, :64], r1 + bgt 8b + pop {r4-r8, pc} +160: +320: + vpush {q4-q5} + 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} + ldrd r4, r5, [sp, #12] + 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} + ldrd r4, r5, [sp, #24] + 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} + ldrd r4, r5, [sp, #24] + 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} + ldrd r4, r5, [sp, #24] + 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} + ldrd r4, r5, [sp, #24] + 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 + add r2, r2, #1 + vpadd.i16 d0, d0 + bx r12 +L(ipred_cfl_w4): + 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 + add r2, r2, #1 + vpadd.i16 d0, d0 + bx r12 +L(ipred_cfl_w8): + 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 + add r2, r2, #1 + vpadd.i16 d0, d0 + bx r12 +L(ipred_cfl_w16): + 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 + add r2, r2, #1 + vpadd.i16 d0, d0 + bx r12 +L(ipred_cfl_w32): + 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} + ldrd r4, r5, [sp, #24] + 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} + ldrd r4, r5, [sp, #24] + 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} + ldrd r4, r5, [sp, #24] + 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 |