mirror of
https://git.ffmpeg.org/ffmpeg.git
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bff0771590
Before: Cortex A7 A8 A9 A53
vp9_put_8tap_smooth_4h_neon: 378.1 273.2 340.7 229.5
After:
vp9_put_8tap_smooth_4h_neon: 352.1 222.2 290.5 229.5
This is cherrypicked from libav commit
fea92a4b57.
Signed-off-by: Martin Storsjö <martin@martin.st>
721 lines
24 KiB
ArmAsm
721 lines
24 KiB
ArmAsm
/*
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* Copyright (c) 2016 Google Inc.
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/arm/asm.S"
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@ All public functions in this file have the following signature:
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@ typedef void (*vp9_mc_func)(uint8_t *dst, ptrdiff_t dst_stride,
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@ const uint8_t *ref, ptrdiff_t ref_stride,
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@ int h, int mx, int my);
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function ff_vp9_copy64_neon, export=1
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ldr r12, [sp]
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sub r1, r1, #32
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sub r3, r3, #32
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1:
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vld1.8 {q0, q1}, [r2]!
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vst1.8 {q0, q1}, [r0, :128]!
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vld1.8 {q2, q3}, [r2], r3
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subs r12, r12, #1
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vst1.8 {q2, q3}, [r0, :128], r1
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bne 1b
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bx lr
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endfunc
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function ff_vp9_avg64_neon, export=1
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push {lr}
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ldr r12, [sp, #4]
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sub r1, r1, #32
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sub r3, r3, #32
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mov lr, r0
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1:
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vld1.8 {q8, q9}, [r2]!
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vld1.8 {q0, q1}, [r0, :128]!
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vld1.8 {q10, q11}, [r2], r3
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vrhadd.u8 q0, q0, q8
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vld1.8 {q2, q3}, [r0, :128], r1
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vrhadd.u8 q1, q1, q9
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vrhadd.u8 q2, q2, q10
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vst1.8 {q0, q1}, [lr, :128]!
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vrhadd.u8 q3, q3, q11
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vst1.8 {q2, q3}, [lr, :128], r1
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subs r12, r12, #1
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bne 1b
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pop {pc}
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endfunc
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function ff_vp9_copy32_neon, export=1
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ldr r12, [sp]
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1:
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vld1.8 {q0, q1}, [r2], r3
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subs r12, r12, #1
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vst1.8 {q0, q1}, [r0, :128], r1
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bne 1b
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bx lr
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endfunc
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function ff_vp9_avg32_neon, export=1
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ldr r12, [sp]
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1:
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vld1.8 {q2, q3}, [r2], r3
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vld1.8 {q0, q1}, [r0, :128]
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vrhadd.u8 q0, q0, q2
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vrhadd.u8 q1, q1, q3
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subs r12, r12, #1
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vst1.8 {q0, q1}, [r0, :128], r1
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bne 1b
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bx lr
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endfunc
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function ff_vp9_copy16_neon, export=1
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push {r4,lr}
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ldr r12, [sp, #8]
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add r4, r0, r1
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add lr, r2, r3
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add r1, r1, r1
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add r3, r3, r3
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1:
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vld1.8 {q0}, [r2], r3
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vld1.8 {q1}, [lr], r3
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subs r12, r12, #2
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vst1.8 {q0}, [r0, :128], r1
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vst1.8 {q1}, [r4, :128], r1
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bne 1b
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pop {r4,pc}
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endfunc
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function ff_vp9_avg16_neon, export=1
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push {lr}
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ldr r12, [sp, #4]
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mov lr, r0
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1:
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vld1.8 {q2}, [r2], r3
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vld1.8 {q0}, [r0, :128], r1
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vld1.8 {q3}, [r2], r3
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vrhadd.u8 q0, q0, q2
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vld1.8 {q1}, [r0, :128], r1
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vrhadd.u8 q1, q1, q3
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subs r12, r12, #2
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vst1.8 {q0}, [lr, :128], r1
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vst1.8 {q1}, [lr, :128], r1
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bne 1b
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pop {pc}
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endfunc
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function ff_vp9_copy8_neon, export=1
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ldr r12, [sp]
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1:
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vld1.8 {d0}, [r2], r3
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vld1.8 {d1}, [r2], r3
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subs r12, r12, #2
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vst1.8 {d0}, [r0, :64], r1
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vst1.8 {d1}, [r0, :64], r1
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bne 1b
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bx lr
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endfunc
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function ff_vp9_avg8_neon, export=1
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ldr r12, [sp]
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1:
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vld1.8 {d2}, [r2], r3
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vld1.8 {d0}, [r0, :64], r1
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vld1.8 {d3}, [r2], r3
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vrhadd.u8 d0, d0, d2
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vld1.8 {d1}, [r0, :64]
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sub r0, r0, r1
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vrhadd.u8 d1, d1, d3
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subs r12, r12, #2
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vst1.8 {d0}, [r0, :64], r1
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vst1.8 {d1}, [r0, :64], r1
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bne 1b
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bx lr
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endfunc
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function ff_vp9_copy4_neon, export=1
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ldr r12, [sp]
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1:
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vld1.32 {d0[]}, [r2], r3
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vld1.32 {d1[]}, [r2], r3
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vst1.32 {d0[0]}, [r0, :32], r1
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vld1.32 {d2[]}, [r2], r3
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vst1.32 {d1[0]}, [r0, :32], r1
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vld1.32 {d3[]}, [r2], r3
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subs r12, r12, #4
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vst1.32 {d2[0]}, [r0, :32], r1
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vst1.32 {d3[0]}, [r0, :32], r1
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bne 1b
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bx lr
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endfunc
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function ff_vp9_avg4_neon, export=1
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push {lr}
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ldr r12, [sp, #4]
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mov lr, r0
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1:
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vld1.32 {d4[]}, [r2], r3
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vld1.32 {d0[]}, [r0, :32], r1
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vld1.32 {d5[]}, [r2], r3
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vrhadd.u8 d0, d0, d4
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vld1.32 {d1[]}, [r0, :32], r1
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vld1.32 {d6[]}, [r2], r3
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vrhadd.u8 d1, d1, d5
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vld1.32 {d2[]}, [r0, :32], r1
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vld1.32 {d7[]}, [r2], r3
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vrhadd.u8 d2, d2, d6
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vld1.32 {d3[]}, [r0, :32], r1
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subs r12, r12, #4
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vst1.32 {d0[0]}, [lr, :32], r1
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vrhadd.u8 d3, d3, d7
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vst1.32 {d1[0]}, [lr, :32], r1
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vst1.32 {d2[0]}, [lr, :32], r1
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vst1.32 {d3[0]}, [lr, :32], r1
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bne 1b
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pop {pc}
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endfunc
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@ Helper macros for vmul/vmla with a constant from either d0 or d1 depending on index
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.macro vmul_lane dst, src, idx
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.if \idx < 4
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vmul.s16 \dst, \src, d0[\idx]
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.else
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vmul.s16 \dst, \src, d1[\idx - 4]
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.endif
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.endm
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.macro vmla_lane dst, src, idx
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.if \idx < 4
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vmla.s16 \dst, \src, d0[\idx]
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.else
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vmla.s16 \dst, \src, d1[\idx - 4]
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.endif
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.endm
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@ Extract a vector from src1-src2 and src4-src5 (src1-src3 and src4-src6
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@ for size >= 16), and multiply-accumulate into dst1 and dst3 (or
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@ dst1-dst2 and dst3-dst4 for size >= 16)
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.macro extmla dst1, dst2, dst3, dst4, dst1d, dst3d, src1, src2, src3, src4, src5, src6, offset, size
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vext.8 q14, \src1, \src2, #(2*\offset)
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vext.8 q15, \src4, \src5, #(2*\offset)
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.if \size >= 16
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vmla_lane \dst1, q14, \offset
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vext.8 q5, \src2, \src3, #(2*\offset)
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vmla_lane \dst3, q15, \offset
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vext.8 q6, \src5, \src6, #(2*\offset)
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vmla_lane \dst2, q5, \offset
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vmla_lane \dst4, q6, \offset
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.elseif \size == 8
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vmla_lane \dst1, q14, \offset
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vmla_lane \dst3, q15, \offset
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.else
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vmla_lane \dst1d, d28, \offset
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vmla_lane \dst3d, d30, \offset
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.endif
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.endm
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@ The same as above, but don't accumulate straight into the
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@ destination, but use a temp register and accumulate with saturation.
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.macro extmulqadd dst1, dst2, dst3, dst4, dst1d, dst3d, src1, src2, src3, src4, src5, src6, offset, size
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vext.8 q14, \src1, \src2, #(2*\offset)
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vext.8 q15, \src4, \src5, #(2*\offset)
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.if \size >= 16
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vmul_lane q14, q14, \offset
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vext.8 q5, \src2, \src3, #(2*\offset)
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vmul_lane q15, q15, \offset
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vext.8 q6, \src5, \src6, #(2*\offset)
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vmul_lane q5, q5, \offset
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vmul_lane q6, q6, \offset
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.elseif \size == 8
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vmul_lane q14, q14, \offset
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vmul_lane q15, q15, \offset
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.else
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vmul_lane d28, d28, \offset
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vmul_lane d30, d30, \offset
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.endif
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.if \size == 4
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vqadd.s16 \dst1d, \dst1d, d28
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vqadd.s16 \dst3d, \dst3d, d30
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.else
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vqadd.s16 \dst1, \dst1, q14
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vqadd.s16 \dst3, \dst3, q15
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.if \size >= 16
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vqadd.s16 \dst2, \dst2, q5
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vqadd.s16 \dst4, \dst4, q6
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.endif
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.endif
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.endm
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@ Instantiate a horizontal filter function for the given size.
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@ This can work on 4, 8 or 16 pixels in parallel; for larger
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@ widths it will do 16 pixels at a time and loop horizontally.
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@ The actual width is passed in r5, the height in r4 and
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@ the filter coefficients in r12. idx2 is the index of the largest
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@ filter coefficient (3 or 4) and idx1 is the other one of them.
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.macro do_8tap_h type, size, idx1, idx2
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function \type\()_8tap_\size\()h_\idx1\idx2
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sub r2, r2, #3
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add r6, r0, r1
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add r7, r2, r3
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add r1, r1, r1
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add r3, r3, r3
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@ Only size >= 16 loops horizontally and needs
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@ reduced dst stride
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.if \size >= 16
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sub r1, r1, r5
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.endif
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@ size >= 16 loads two qwords and increments r2,
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@ for size 4/8 it's enough with one qword and no
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@ postincrement
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.if \size >= 16
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sub r3, r3, r5
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sub r3, r3, #8
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.endif
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@ Load the filter vector
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vld1.16 {q0}, [r12,:128]
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1:
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.if \size >= 16
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mov r12, r5
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.endif
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@ Load src
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.if \size >= 16
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vld1.8 {d18, d19, d20}, [r2]!
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vld1.8 {d24, d25, d26}, [r7]!
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.else
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vld1.8 {q9}, [r2]
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vld1.8 {q12}, [r7]
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.endif
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vmovl.u8 q8, d18
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vmovl.u8 q9, d19
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vmovl.u8 q11, d24
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vmovl.u8 q12, d25
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.if \size >= 16
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vmovl.u8 q10, d20
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vmovl.u8 q13, d26
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.endif
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2:
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@ Accumulate, adding idx2 last with a separate
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@ saturating add. The positive filter coefficients
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@ for all indices except idx2 must add up to less
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@ than 127 for this not to overflow.
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vmul.s16 q1, q8, d0[0]
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vmul.s16 q3, q11, d0[0]
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.if \size >= 16
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vmul.s16 q2, q9, d0[0]
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vmul.s16 q4, q12, d0[0]
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.endif
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extmla q1, q2, q3, q4, d2, d6, q8, q9, q10, q11, q12, q13, 1, \size
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extmla q1, q2, q3, q4, d2, d6, q8, q9, q10, q11, q12, q13, 2, \size
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extmla q1, q2, q3, q4, d2, d6, q8, q9, q10, q11, q12, q13, \idx1, \size
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extmla q1, q2, q3, q4, d2, d6, q8, q9, q10, q11, q12, q13, 5, \size
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extmla q1, q2, q3, q4, d2, d6, q8, q9, q10, q11, q12, q13, 6, \size
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extmla q1, q2, q3, q4, d2, d6, q8, q9, q10, q11, q12, q13, 7, \size
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extmulqadd q1, q2, q3, q4, d2, d6, q8, q9, q10, q11, q12, q13, \idx2, \size
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@ Round, shift and saturate
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vqrshrun.s16 d2, q1, #7
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vqrshrun.s16 d6, q3, #7
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.if \size >= 16
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vqrshrun.s16 d3, q2, #7
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vqrshrun.s16 d7, q4, #7
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.endif
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@ Average
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.ifc \type,avg
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.if \size >= 16
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vld1.8 {q14}, [r0,:128]
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vld1.8 {q15}, [r6,:128]
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vrhadd.u8 q1, q1, q14
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vrhadd.u8 q3, q3, q15
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.elseif \size == 8
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vld1.8 {d28}, [r0,:64]
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vld1.8 {d30}, [r6,:64]
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vrhadd.u8 d2, d2, d28
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vrhadd.u8 d6, d6, d30
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.else
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@ We only need d28[0], but [] is faster on some cores
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vld1.32 {d28[]}, [r0,:32]
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vld1.32 {d30[]}, [r6,:32]
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vrhadd.u8 d2, d2, d28
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vrhadd.u8 d6, d6, d30
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.endif
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.endif
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@ Store and loop horizontally (for size >= 16)
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.if \size >= 16
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subs r12, r12, #16
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vst1.8 {q1}, [r0,:128]!
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vst1.8 {q3}, [r6,:128]!
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beq 3f
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vmov q8, q10
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vmov q11, q13
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vld1.8 {q10}, [r2]!
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vld1.8 {q13}, [r7]!
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vmovl.u8 q9, d20
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vmovl.u8 q10, d21
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vmovl.u8 q12, d26
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vmovl.u8 q13, d27
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b 2b
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.elseif \size == 8
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vst1.8 {d2}, [r0,:64]
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vst1.8 {d6}, [r6,:64]
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.else @ \size == 4
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vst1.32 {d2[0]}, [r0,:32]
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vst1.32 {d6[0]}, [r6,:32]
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.endif
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3:
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@ Loop vertically
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add r0, r0, r1
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add r6, r6, r1
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add r2, r2, r3
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add r7, r7, r3
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subs r4, r4, #2
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bne 1b
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.if \size >= 16
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vpop {q4-q6}
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.endif
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pop {r4-r7}
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bx lr
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endfunc
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.endm
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.macro do_8tap_h_size size
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do_8tap_h put, \size, 3, 4
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do_8tap_h avg, \size, 3, 4
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do_8tap_h put, \size, 4, 3
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do_8tap_h avg, \size, 4, 3
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.endm
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do_8tap_h_size 4
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do_8tap_h_size 8
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do_8tap_h_size 16
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.macro do_8tap_h_func type, filter, offset, size
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function ff_vp9_\type\()_\filter\()\size\()_h_neon, export=1
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push {r4-r7}
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.if \size >= 16
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vpush {q4-q6}
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ldr r4, [sp, #64]
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ldr r5, [sp, #68]
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.else
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ldr r4, [sp, #16]
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ldr r5, [sp, #20]
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.endif
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movrelx r12, X(ff_vp9_subpel_filters), r6
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add r12, r12, 256*\offset
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cmp r5, #8
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add r12, r12, r5, lsl #4
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mov r5, #\size
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.if \size >= 16
|
|
bge \type\()_8tap_16h_34
|
|
b \type\()_8tap_16h_43
|
|
.else
|
|
bge \type\()_8tap_\size\()h_34
|
|
b \type\()_8tap_\size\()h_43
|
|
.endif
|
|
endfunc
|
|
.endm
|
|
|
|
.macro do_8tap_h_filters size
|
|
do_8tap_h_func put, regular, 1, \size
|
|
do_8tap_h_func avg, regular, 1, \size
|
|
do_8tap_h_func put, sharp, 2, \size
|
|
do_8tap_h_func avg, sharp, 2, \size
|
|
do_8tap_h_func put, smooth, 0, \size
|
|
do_8tap_h_func avg, smooth, 0, \size
|
|
.endm
|
|
|
|
do_8tap_h_filters 64
|
|
do_8tap_h_filters 32
|
|
do_8tap_h_filters 16
|
|
do_8tap_h_filters 8
|
|
do_8tap_h_filters 4
|
|
|
|
.ltorg
|
|
|
|
@ Vertical filters
|
|
|
|
@ Round, shift and saturate and store qreg1-2 over 4 lines
|
|
.macro do_store4 qreg1, dreg1, qreg2, dreg2, tmp1, tmp2, type
|
|
vqrshrun.s16 \dreg1, \qreg1, #7
|
|
vqrshrun.s16 \dreg2, \qreg2, #7
|
|
.ifc \type,avg
|
|
vld1.32 {\tmp1[]}, [r0,:32], r1
|
|
vld1.32 {\tmp2[]}, [r0,:32], r1
|
|
vld1.32 {\tmp1[1]}, [r0,:32], r1
|
|
vld1.32 {\tmp2[1]}, [r0,:32], r1
|
|
vrhadd.u8 \dreg1, \dreg1, \tmp1
|
|
vrhadd.u8 \dreg2, \dreg2, \tmp2
|
|
sub r0, r0, r1, lsl #2
|
|
.endif
|
|
vst1.32 {\dreg1[0]}, [r0,:32], r1
|
|
vst1.32 {\dreg2[0]}, [r0,:32], r1
|
|
vst1.32 {\dreg1[1]}, [r0,:32], r1
|
|
vst1.32 {\dreg2[1]}, [r0,:32], r1
|
|
.endm
|
|
|
|
@ Round, shift and saturate and store qreg1-4
|
|
.macro do_store qreg1, dreg1, qreg2, dreg2, qreg3, dreg3, qreg4, dreg4, tmp1, tmp2, tmp3, tmp4, type
|
|
vqrshrun.s16 \dreg1, \qreg1, #7
|
|
vqrshrun.s16 \dreg2, \qreg2, #7
|
|
vqrshrun.s16 \dreg3, \qreg3, #7
|
|
vqrshrun.s16 \dreg4, \qreg4, #7
|
|
.ifc \type,avg
|
|
vld1.8 {\tmp1}, [r0,:64], r1
|
|
vld1.8 {\tmp2}, [r0,:64], r1
|
|
vld1.8 {\tmp3}, [r0,:64], r1
|
|
vld1.8 {\tmp4}, [r0,:64], r1
|
|
vrhadd.u8 \dreg1, \dreg1, \tmp1
|
|
vrhadd.u8 \dreg2, \dreg2, \tmp2
|
|
vrhadd.u8 \dreg3, \dreg3, \tmp3
|
|
vrhadd.u8 \dreg4, \dreg4, \tmp4
|
|
sub r0, r0, r1, lsl #2
|
|
.endif
|
|
vst1.8 {\dreg1}, [r0,:64], r1
|
|
vst1.8 {\dreg2}, [r0,:64], r1
|
|
vst1.8 {\dreg3}, [r0,:64], r1
|
|
vst1.8 {\dreg4}, [r0,:64], r1
|
|
.endm
|
|
|
|
@ Evaluate the filter twice in parallel, from the inputs src1-src9 into dst1-dst2
|
|
@ (src1-src8 into dst1, src2-src9 into dst2), adding idx2 separately
|
|
@ at the end with saturation. Indices 0 and 7 always have negative or zero
|
|
@ coefficients, so they can be accumulated into tmp1-tmp2 together with the
|
|
@ largest coefficient.
|
|
.macro convolve dst1, dst2, src1, src2, src3, src4, src5, src6, src7, src8, src9, idx1, idx2, tmp1, tmp2
|
|
vmul.s16 \dst1, \src2, d0[1]
|
|
vmul.s16 \dst2, \src3, d0[1]
|
|
vmul.s16 \tmp1, \src1, d0[0]
|
|
vmul.s16 \tmp2, \src2, d0[0]
|
|
vmla.s16 \dst1, \src3, d0[2]
|
|
vmla.s16 \dst2, \src4, d0[2]
|
|
.if \idx1 == 3
|
|
vmla.s16 \dst1, \src4, d0[3]
|
|
vmla.s16 \dst2, \src5, d0[3]
|
|
.else
|
|
vmla.s16 \dst1, \src5, d1[0]
|
|
vmla.s16 \dst2, \src6, d1[0]
|
|
.endif
|
|
vmla.s16 \dst1, \src6, d1[1]
|
|
vmla.s16 \dst2, \src7, d1[1]
|
|
vmla.s16 \tmp1, \src8, d1[3]
|
|
vmla.s16 \tmp2, \src9, d1[3]
|
|
vmla.s16 \dst1, \src7, d1[2]
|
|
vmla.s16 \dst2, \src8, d1[2]
|
|
.if \idx2 == 3
|
|
vmla.s16 \tmp1, \src4, d0[3]
|
|
vmla.s16 \tmp2, \src5, d0[3]
|
|
.else
|
|
vmla.s16 \tmp1, \src5, d1[0]
|
|
vmla.s16 \tmp2, \src6, d1[0]
|
|
.endif
|
|
vqadd.s16 \dst1, \dst1, \tmp1
|
|
vqadd.s16 \dst2, \dst2, \tmp2
|
|
.endm
|
|
|
|
@ Load pixels and extend them to 16 bit
|
|
.macro loadl dst1, dst2, dst3, dst4
|
|
vld1.8 {d2}, [r2], r3
|
|
vld1.8 {d3}, [r2], r3
|
|
vld1.8 {d4}, [r2], r3
|
|
.ifnb \dst4
|
|
vld1.8 {d5}, [r2], r3
|
|
.endif
|
|
vmovl.u8 \dst1, d2
|
|
vmovl.u8 \dst2, d3
|
|
vmovl.u8 \dst3, d4
|
|
.ifnb \dst4
|
|
vmovl.u8 \dst4, d5
|
|
.endif
|
|
.endm
|
|
|
|
@ Instantiate a vertical filter function for filtering 8 pixels at a time.
|
|
@ The height is passed in r4, the width in r5 and the filter coefficients
|
|
@ in r12. idx2 is the index of the largest filter coefficient (3 or 4)
|
|
@ and idx1 is the other one of them.
|
|
.macro do_8tap_8v type, idx1, idx2
|
|
function \type\()_8tap_8v_\idx1\idx2
|
|
sub r2, r2, r3, lsl #1
|
|
sub r2, r2, r3
|
|
vld1.16 {q0}, [r12, :128]
|
|
1:
|
|
mov r12, r4
|
|
|
|
loadl q5, q6, q7
|
|
loadl q8, q9, q10, q11
|
|
2:
|
|
loadl q12, q13, q14, q15
|
|
convolve q1, q2, q5, q6, q7, q8, q9, q10, q11, q12, q13, \idx1, \idx2, q4, q5
|
|
convolve q3, q4, q7, q8, q9, q10, q11, q12, q13, q14, q15, \idx1, \idx2, q5, q6
|
|
do_store q1, d2, q2, d4, q3, d6, q4, d8, d3, d5, d7, d9, \type
|
|
|
|
subs r12, r12, #4
|
|
beq 8f
|
|
|
|
loadl q4, q5, q6, q7
|
|
convolve q1, q2, q9, q10, q11, q12, q13, q14, q15, q4, q5, \idx1, \idx2, q8, q9
|
|
convolve q3, q8, q11, q12, q13, q14, q15, q4, q5, q6, q7, \idx1, \idx2, q9, q10
|
|
do_store q1, d2, q2, d4, q3, d6, q8, d16, d3, d5, d7, d17, \type
|
|
|
|
subs r12, r12, #4
|
|
beq 8f
|
|
|
|
loadl q8, q9, q10, q11
|
|
convolve q1, q2, q13, q14, q15, q4, q5, q6, q7, q8, q9, \idx1, \idx2, q12, q13
|
|
convolve q3, q12, q15, q4, q5, q6, q7, q8, q9, q10, q11, \idx1, \idx2, q13, q14
|
|
do_store q1, d2, q2, d4, q3, d6, q12, d24, d3, d5, d7, d25, \type
|
|
|
|
subs r12, r12, #4
|
|
bne 2b
|
|
|
|
8:
|
|
subs r5, r5, #8
|
|
beq 9f
|
|
@ r0 -= h * dst_stride
|
|
mls r0, r1, r4, r0
|
|
@ r2 -= h * src_stride
|
|
mls r2, r3, r4, r2
|
|
@ r2 -= 8 * src_stride
|
|
sub r2, r2, r3, lsl #3
|
|
@ r2 += 1 * src_stride
|
|
add r2, r2, r3
|
|
add r2, r2, #8
|
|
add r0, r0, #8
|
|
b 1b
|
|
9:
|
|
vpop {q4-q7}
|
|
pop {r4-r5}
|
|
bx lr
|
|
endfunc
|
|
.endm
|
|
|
|
do_8tap_8v put, 3, 4
|
|
do_8tap_8v put, 4, 3
|
|
do_8tap_8v avg, 3, 4
|
|
do_8tap_8v avg, 4, 3
|
|
|
|
@ Instantiate a vertical filter function for filtering a 4 pixels wide
|
|
@ slice. The first half of the registers contain one row, while the second
|
|
@ half of a register contains the second-next row (also stored in the first
|
|
@ half of the register two steps ahead). The convolution does two outputs
|
|
@ at a time; the output of q5-q12 into one, and q4-q13 into another one.
|
|
@ The first half of first output is the first output row, the first half
|
|
@ of the other output is the second output row. The second halves of the
|
|
@ registers are rows 3 and 4.
|
|
@ This only is designed to work for 4 or 8 output lines.
|
|
.macro do_8tap_4v type, idx1, idx2
|
|
function \type\()_8tap_4v_\idx1\idx2
|
|
sub r2, r2, r3, lsl #1
|
|
sub r2, r2, r3
|
|
vld1.16 {q0}, [r12, :128]
|
|
|
|
vld1.32 {d2[]}, [r2], r3
|
|
vld1.32 {d3[]}, [r2], r3
|
|
vld1.32 {d4[]}, [r2], r3
|
|
vld1.32 {d5[]}, [r2], r3
|
|
vld1.32 {d6[]}, [r2], r3
|
|
vld1.32 {d7[]}, [r2], r3
|
|
vext.8 d2, d2, d4, #4
|
|
vld1.32 {d8[]}, [r2], r3
|
|
vext.8 d3, d3, d5, #4
|
|
vld1.32 {d9[]}, [r2], r3
|
|
vmovl.u8 q5, d2
|
|
vext.8 d4, d4, d6, #4
|
|
vld1.32 {d28[]}, [r2], r3
|
|
vmovl.u8 q6, d3
|
|
vext.8 d5, d5, d7, #4
|
|
vld1.32 {d29[]}, [r2], r3
|
|
vmovl.u8 q7, d4
|
|
vext.8 d6, d6, d8, #4
|
|
vld1.32 {d30[]}, [r2], r3
|
|
vmovl.u8 q8, d5
|
|
vext.8 d7, d7, d9, #4
|
|
vmovl.u8 q9, d6
|
|
vext.8 d8, d8, d28, #4
|
|
vmovl.u8 q10, d7
|
|
vext.8 d9, d9, d29, #4
|
|
vmovl.u8 q11, d8
|
|
vext.8 d28, d28, d30, #4
|
|
vmovl.u8 q12, d9
|
|
vmovl.u8 q13, d28
|
|
|
|
convolve q1, q2, q5, q6, q7, q8, q9, q10, q11, q12, q13, \idx1, \idx2, q4, q3
|
|
do_store4 q1, d2, q2, d4, d3, d5, \type
|
|
subs r4, r4, #4
|
|
beq 9f
|
|
|
|
vld1.32 {d2[]}, [r2], r3
|
|
vld1.32 {d3[]}, [r2], r3
|
|
vext.8 d29, d29, d2, #4
|
|
vext.8 d30, d30, d3, #4
|
|
vld1.32 {d2[1]}, [r2], r3
|
|
vmovl.u8 q14, d29
|
|
vld1.32 {d3[1]}, [r2], r3
|
|
vmovl.u8 q15, d30
|
|
vmovl.u8 q5, d2
|
|
vmovl.u8 q6, d3
|
|
|
|
convolve q1, q2, q9, q10, q11, q12, q13, q14, q15, q5, q6, \idx1, \idx2, q4, q3
|
|
do_store4 q1, d2, q2, d4, d3, d5, \type
|
|
|
|
9:
|
|
vpop {q4-q7}
|
|
pop {r4-r5}
|
|
bx lr
|
|
endfunc
|
|
.endm
|
|
|
|
do_8tap_4v put, 3, 4
|
|
do_8tap_4v put, 4, 3
|
|
do_8tap_4v avg, 3, 4
|
|
do_8tap_4v avg, 4, 3
|
|
|
|
.macro do_8tap_v_func type, filter, offset, size
|
|
function ff_vp9_\type\()_\filter\()\size\()_v_neon, export=1
|
|
push {r4-r5}
|
|
vpush {q4-q7}
|
|
ldr r4, [sp, #72]
|
|
movrelx r12, X(ff_vp9_subpel_filters), r5
|
|
ldr r5, [sp, #80]
|
|
add r12, r12, 256*\offset
|
|
add r12, r12, r5, lsl #4
|
|
cmp r5, #8
|
|
mov r5, #\size
|
|
.if \size >= 8
|
|
bge \type\()_8tap_8v_34
|
|
b \type\()_8tap_8v_43
|
|
.else
|
|
bge \type\()_8tap_4v_34
|
|
b \type\()_8tap_4v_43
|
|
.endif
|
|
endfunc
|
|
.endm
|
|
|
|
.macro do_8tap_v_filters size
|
|
do_8tap_v_func put, regular, 1, \size
|
|
do_8tap_v_func avg, regular, 1, \size
|
|
do_8tap_v_func put, sharp, 2, \size
|
|
do_8tap_v_func avg, sharp, 2, \size
|
|
do_8tap_v_func put, smooth, 0, \size
|
|
do_8tap_v_func avg, smooth, 0, \size
|
|
.endm
|
|
|
|
do_8tap_v_filters 64
|
|
do_8tap_v_filters 32
|
|
do_8tap_v_filters 16
|
|
do_8tap_v_filters 8
|
|
do_8tap_v_filters 4
|