2015-02-05 08:49:32 +02:00
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/*
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* Copyright (c) 2014 Seppo Tomperi <seppo.tomperi@vtt.fi>
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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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#include "neon.S"
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function ff_hevc_idct_4x4_dc_neon_8, export=1
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ldrsh r1, [r0]
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ldr r2, =0x20
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add r1, #1
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asr r1, #1
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add r1, r2
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asr r1, #6
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vdup.16 q0, r1
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vdup.16 q1, r1
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vst1.16 {q0, q1}, [r0]
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bx lr
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endfunc
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function ff_hevc_idct_8x8_dc_neon_8, export=1
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ldrsh r1, [r0]
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ldr r2, =0x20
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add r1, #1
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asr r1, #1
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add r1, r2
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asr r1, #6
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vdup.16 q8, r1
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vdup.16 q9, r1
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vmov.16 q10, q8
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vmov.16 q11, q8
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vmov.16 q12, q8
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vmov.16 q13, q8
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vmov.16 q14, q8
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vmov.16 q15, q8
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vstm r0, {q8-q15}
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bx lr
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endfunc
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function ff_hevc_idct_16x16_dc_neon_8, export=1
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ldrsh r1, [r0]
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ldr r2, =0x20
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add r1, #1
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asr r1, #1
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add r1, r2
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asr r1, #6
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vdup.16 q8, r1
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vdup.16 q9, r1
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vmov.16 q10, q8
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vmov.16 q11, q8
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vmov.16 q12, q8
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vmov.16 q13, q8
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vmov.16 q14, q8
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vmov.16 q15, q8
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vstm r0!, {q8-q15}
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vstm r0!, {q8-q15}
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vstm r0!, {q8-q15}
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vstm r0, {q8-q15}
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bx lr
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endfunc
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function ff_hevc_idct_32x32_dc_neon_8, export=1
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ldrsh r1, [r0]
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ldr r2, =0x20
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add r1, #1
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asr r1, #1
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add r1, r2
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asr r1, #6
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mov r3, #16
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vdup.16 q8, r1
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vdup.16 q9, r1
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vmov.16 q10, q8
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vmov.16 q11, q8
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vmov.16 q12, q8
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vmov.16 q13, q8
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vmov.16 q14, q8
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vmov.16 q15, q8
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1: subs r3, #1
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vstm r0!, {q8-q15}
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bne 1b
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bx lr
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endfunc
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2017-01-31 12:20:54 +02:00
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function ff_hevc_add_residual_4x4_neon_8, export=1
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2015-02-05 08:49:32 +02:00
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vldm r1, {q0-q1}
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vld1.32 d4[0], [r0], r2
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vld1.32 d4[1], [r0], r2
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vld1.32 d5[0], [r0], r2
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vld1.32 d5[1], [r0], r2
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sub r0, r0, r2, lsl #2
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vmovl.u8 q8, d4
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vmovl.u8 q9, d5
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vqadd.s16 q0, q0, q8
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vqadd.s16 q1, q1, q9
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vqmovun.s16 d0, q0
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vqmovun.s16 d1, q1
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vst1.32 d0[0], [r0], r2
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vst1.32 d0[1], [r0], r2
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vst1.32 d1[0], [r0], r2
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vst1.32 d1[1], [r0], r2
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bx lr
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endfunc
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2017-01-31 12:20:54 +02:00
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function ff_hevc_add_residual_8x8_neon_8, export=1
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2015-02-05 08:49:32 +02:00
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mov r3, #8
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1: subs r3, #1
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vld1.16 {q0}, [r1]!
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vld1.8 d16, [r0]
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vmovl.u8 q8, d16
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vqadd.s16 q0, q8
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vqmovun.s16 d0, q0
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vst1.32 d0, [r0], r2
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bne 1b
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bx lr
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endfunc
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2017-01-31 12:20:54 +02:00
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function ff_hevc_add_residual_16x16_neon_8, export=1
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2015-02-05 08:49:32 +02:00
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mov r3, #16
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1: subs r3, #1
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vld1.16 {q0, q1}, [r1]!
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vld1.8 {q8}, [r0]
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vmovl.u8 q9, d16
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vmovl.u8 q10, d17
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vqadd.s16 q0, q9
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vqadd.s16 q1, q10
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vqmovun.s16 d0, q0
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vqmovun.s16 d1, q1
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vst1.8 {q0}, [r0], r2
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bne 1b
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bx lr
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endfunc
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2017-01-31 12:20:54 +02:00
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function ff_hevc_add_residual_32x32_neon_8, export=1
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2015-02-05 08:49:32 +02:00
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mov r3, #32
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1: subs r3, #1
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vldm r1!, {q0-q3}
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vld1.8 {q8, q9}, [r0]
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vmovl.u8 q10, d16
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vmovl.u8 q11, d17
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vmovl.u8 q12, d18
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vmovl.u8 q13, d19
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vqadd.s16 q0, q10
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vqadd.s16 q1, q11
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vqadd.s16 q2, q12
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vqadd.s16 q3, q13
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vqmovun.s16 d0, q0
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vqmovun.s16 d1, q1
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vqmovun.s16 d2, q2
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vqmovun.s16 d3, q3
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vst1.8 {q0, q1}, [r0], r2
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bne 1b
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bx lr
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endfunc
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.macro transpose_16b_8x8 r0, r1, r2, r3, r4, r5, r6, r7
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vtrn.64 \r0, \r4
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vtrn.64 \r1, \r5
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vtrn.64 \r2, \r6
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vtrn.64 \r3, \r7
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vtrn.32 \r0, \r2
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vtrn.32 \r1, \r3
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vtrn.32 \r4, \r6
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vtrn.32 \r5, \r7
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vtrn.16 \r0, \r1
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vtrn.16 \r2, \r3
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vtrn.16 \r4, \r5
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vtrn.16 \r6, \r7
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.endm
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// in 4 q regs
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// output 8 d regs
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.macro transpose_16b_4x4 r0, r1, r2, r3
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vtrn.32 \r0, \r2
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vtrn.32 \r1, \r3
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vtrn.16 \r0, \r1
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vtrn.16 \r2, \r3
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.endm
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/* uses registers q2 - q9 for temp values */
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/* TODO: reorder */
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.macro tr4_luma_shift r0, r1, r2, r3, shift
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vaddl.s16 q5, \r0, \r2 // c0 = src0 + src2
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vaddl.s16 q2, \r2, \r3 // c1 = src2 + src3
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vsubl.s16 q4, \r0, \r3 // c2 = src0 - src3
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vmull.s16 q6, \r1, d0[0] // c3 = 74 * src1
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vaddl.s16 q7, \r0, \r3 // src0 + src3
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vsubw.s16 q7, q7, \r2 // src0 - src2 + src3
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vmul.s32 q7, q7, d0[0] // dst2 = 74 * (src0 - src2 + src3)
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vmul.s32 q8, q5, d0[1] // 29 * c0
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vmul.s32 q9, q2, d1[0] // 55 * c1
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vadd.s32 q8, q9 // 29 * c0 + 55 * c1
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vadd.s32 q8, q6 // dst0 = 29 * c0 + 55 * c1 + c3
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vmul.s32 q2, q2, d0[1] // 29 * c1
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vmul.s32 q9, q4, d1[0] // 55 * c2
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vsub.s32 q9, q2 // 55 * c2 - 29 * c1
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vadd.s32 q9, q6 // dst1 = 55 * c2 - 29 * c1 + c3
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vmul.s32 q5, q5, d1[0] // 55 * c0
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vmul.s32 q4, q4, d0[1] // 29 * c2
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vadd.s32 q5, q4 // 55 * c0 + 29 * c2
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vsub.s32 q5, q6 // dst3 = 55 * c0 + 29 * c2 - c3
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vqrshrn.s32 \r0, q8, \shift
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vqrshrn.s32 \r1, q9, \shift
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vqrshrn.s32 \r2, q7, \shift
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vqrshrn.s32 \r3, q5, \shift
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.endm
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/* uses registers q2 - q6 for temp values */
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.macro tr4 r0, r1, r2, r3
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vmull.s16 q4, \r1, d0[0] // 83 * src1
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vmull.s16 q6, \r1, d0[1] // 36 * src1
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vshll.s16 q2, \r0, #6 // 64 * src0
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vshll.s16 q3, \r2, #6 // 64 * src2
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vadd.s32 q5, q2, q3 // 64 * (src0 + src2) e0
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vsub.s32 q2, q2, q3 // 64 * (src0 - src2) e1
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vmlal.s16 q4, \r3, d0[1] // 83 * src1 + 36 * src3 o0
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vmlsl.s16 q6, \r3, d0[0] // 36 * src1 - 83 * src3 o1
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vsub.s32 q3, q5, q4 // e0 - o0
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vadd.s32 q4, q5, q4 // e0 + o0
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vadd.s32 q5, q2, q6 // e1 + o1
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vsub.s32 q6, q2, q6 // e1 - o1
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.endm
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.macro tr4_shift r0, r1, r2, r3, shift
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vmull.s16 q4, \r1, d0[0] // 83 * src1
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vmull.s16 q6, \r1, d0[1] // 36 * src1
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vshll.s16 q2, \r0, #6 // 64 * src0
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vshll.s16 q3, \r2, #6 // 64 * src2
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vadd.s32 q5, q2, q3 // 64 * (src0 + src2) e0
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vsub.s32 q2, q2, q3 // 64 * (src0 - src2) e1
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vmlal.s16 q4, \r3, d0[1] // 83 * src1 + 36 * src3 o0
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vmlsl.s16 q6, \r3, d0[0] // 36 * src1 - 83 * src3 o1
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vsub.s32 q3, q5, q4 // e0 - o0
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vadd.s32 q4, q5, q4 // e0 + o0
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vadd.s32 q5, q2, q6 // e1 + o1
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vsub.s32 q6, q2, q6 // e1 - o1
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vqrshrn.s32 \r0, q4, \shift
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vqrshrn.s32 \r1, q5, \shift
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vqrshrn.s32 \r2, q6, \shift
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vqrshrn.s32 \r3, q3, \shift
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.endm
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function ff_hevc_transform_4x4_neon_8, export=1
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vpush {d8-d15}
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vld1.16 {q14, q15}, [r0] // coeffs
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ldr r3, =0x00240053 // 36 and 83
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vmov.32 d0[0], r3
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tr4_shift d28, d29, d30, d31, #7
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vtrn.16 d28, d29
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vtrn.16 d30, d31
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vtrn.32 q14, q15
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tr4_shift d28, d29, d30, d31, #12
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vtrn.16 d28, d29
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vtrn.16 d30, d31
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vtrn.32 q14, q15
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vst1.16 {q14, q15}, [r0]
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vpop {d8-d15}
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bx lr
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endfunc
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function ff_hevc_transform_luma_4x4_neon_8, export=1
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vpush {d8-d15}
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vld1.16 {q14, q15}, [r0] // coeffs
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ldr r3, =0x4a // 74
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vmov.32 d0[0], r3
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ldr r3, =0x1d // 29
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vmov.32 d0[1], r3
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ldr r3, =0x37 // 55
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vmov.32 d1[0], r3
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tr4_luma_shift d28, d29, d30, d31, #7
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vtrn.16 d28, d29
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vtrn.16 d30, d31
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vtrn.32 q14, q15
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tr4_luma_shift d28, d29, d30, d31, #12
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vtrn.16 d28, d29
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vtrn.16 d30, d31
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vtrn.32 q14, q15
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vst1.16 {q14, q15}, [r0]
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vpop {d8-d15}
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bx lr
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endfunc
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.macro tr8_begin in0, in1, in2, in3
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vmull.s16 q7, \in0, d1[1] // 89 * src1
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vmull.s16 q8, \in0, d1[0] // 75 * src1
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vmull.s16 q9, \in0, d1[3] // 50 * src1
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vmull.s16 q10, \in0, d1[2] // 18 * src1
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vmlal.s16 q7, \in1, d1[0] // 75 * src3
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vmlsl.s16 q8, \in1, d1[2] //-18 * src3
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vmlsl.s16 q9, \in1, d1[1] //-89 * src3
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vmlsl.s16 q10, \in1, d1[3] //-50 * src3
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vmlal.s16 q7, \in2, d1[3] // 50 * src5
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vmlsl.s16 q8, \in2, d1[1] //-89 * src5
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vmlal.s16 q9, \in2, d1[2] // 18 * src5
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vmlal.s16 q10, \in2, d1[0] // 75 * src5
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vmlal.s16 q7, \in3, d1[2] // 18 * src7
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vmlsl.s16 q8, \in3, d1[3] //-50 * src7
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vmlal.s16 q9, \in3, d1[0] // 75 * src7
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vmlsl.s16 q10, \in3, d1[1] //-89 * src7
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.endm
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.macro tr8_end shift
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vadd.s32 q1, q4, q7 // e_8[0] + o_8[0], dst[0]
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vsub.s32 q4, q4, q7 // e_8[0] - o_8[0], dst[7]
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vadd.s32 q2, q5, q8 // e_8[1] + o_8[1], dst[1]
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vsub.s32 q5, q5, q8 // e_8[1] - o_8[1], dst[6]
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vadd.s32 q11, q6, q9 // e_8[2] + o_8[2], dst[2]
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vsub.s32 q6, q6, q9 // e_8[2] - o_8[2], dst[5]
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vadd.s32 q12, q3, q10 // e_8[3] + o_8[3], dst[3]
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vsub.s32 q3, q3, q10 // e_8[3] - o_8[3], dst[4]
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vqrshrn.s32 d2, q1, \shift
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vqrshrn.s32 d3, q2, \shift
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vqrshrn.s32 d4, q11, \shift
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vqrshrn.s32 d5, q12, \shift
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vqrshrn.s32 d6, q3, \shift
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vqrshrn.s32 d7, q6, \shift
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vqrshrn.s32 d9, q4, \shift
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vqrshrn.s32 d8, q5, \shift
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.endm
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function ff_hevc_transform_8x8_neon_8, export=1
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push {r4-r8}
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vpush {d8-d15}
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mov r5, #16
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adr r3, tr4f
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vld1.16 {d0, d1}, [r3]
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// left half
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vld1.16 {d24}, [r0], r5
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vld1.16 {d25}, [r0], r5
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vld1.16 {d26}, [r0], r5
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vld1.16 {d27}, [r0], r5
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vld1.16 {d28}, [r0], r5
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vld1.16 {d29}, [r0], r5
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vld1.16 {d30}, [r0], r5
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vld1.16 {d31}, [r0], r5
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sub r0, #128
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tr8_begin d25, d27, d29, d31
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tr4 d24, d26, d28, d30
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tr8_end #7
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vst1.16 {d2}, [r0], r5
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vst1.16 {d3}, [r0], r5
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vst1.16 {d4}, [r0], r5
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vst1.16 {d5}, [r0], r5
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vst1.16 {d6}, [r0], r5
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vst1.16 {d7}, [r0], r5
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vst1.16 {d8}, [r0], r5
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vst1.16 {d9}, [r0], r5
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sub r0, #128
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//skip right half if col_limit in r1 is less than 4
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cmp r1, #4
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blt 1f
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//right half
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add r0, #8
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vld1.16 {d24}, [r0], r5
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vld1.16 {d25}, [r0], r5
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vld1.16 {d26}, [r0], r5
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vld1.16 {d27}, [r0], r5
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vld1.16 {d28}, [r0], r5
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vld1.16 {d29}, [r0], r5
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vld1.16 {d30}, [r0], r5
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vld1.16 {d31}, [r0], r5
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sub r0, #128
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tr8_begin d25, d27, d29, d31
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tr4 d24, d26, d28, d30
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tr8_end #7
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vst1.16 {d2}, [r0], r5
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vst1.16 {d3}, [r0], r5
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vst1.16 {d4}, [r0], r5
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vst1.16 {d5}, [r0], r5
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vst1.16 {d6}, [r0], r5
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vst1.16 {d7}, [r0], r5
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vst1.16 {d8}, [r0], r5
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vst1.16 {d9}, [r0], r5
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sub r0, #136
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1:
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// top half
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vldm r0, {q12-q15} // coeffs
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transpose_16b_4x4 d24, d26, d28, d30
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transpose_16b_4x4 d25, d27, d29, d31
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tr8_begin d26, d30, d27, d31
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tr4 d24, d28, d25, d29
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tr8_end #12
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transpose_16b_4x4 d2, d3, d4, d5
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transpose_16b_4x4 d6, d7, d8, d9
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vswp d7, d5
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vswp d7, d8
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vswp d3, d6
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vswp d6, d4
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vstm r0!, {q1-q4}
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// bottom half
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vldm r0, {q12-q15} // coeffs
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transpose_16b_4x4 d24, d26, d28, d30
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transpose_16b_4x4 d25, d27, d29, d31
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tr8_begin d26, d30, d27, d31
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tr4 d24, d28, d25, d29
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tr8_end #12
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transpose_16b_4x4 d2, d3, d4, d5
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transpose_16b_4x4 d6, d7, d8, d9
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vswp d7, d5
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vswp d7, d8
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vswp d3, d6
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vswp d6, d4
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//vstm r0, {q1-q4}
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vst1.16 {q1-q2}, [r0]
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add r0, #32
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vst1.16 {q3-q4}, [r0]
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sub r0, #32
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vpop {d8-d15}
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pop {r4-r8}
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bx lr
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endfunc
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.align 4
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tr4f:
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.word 0x00240053 // 36 and d1[0] = 83
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.word 0x00000000
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tr8f:
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.word 0x0059004b // 89, d0[0] = 75
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.word 0x00320012 // 50, d0[2] = 18
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tr16:
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.word 0x005a0057 // 90, d2[0] = 87
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.word 0x00500046 // 80, d2[2] = 70
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.word 0x0039002b // 57, d2[0] = 43
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.word 0x00190009 // 25, d2[2] = 9
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