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180 lines
6.0 KiB
180 lines
6.0 KiB
/* |
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* Copyright (c) 2008 Mans Rullgard <mans@mansr.com> |
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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 "asm.S" |
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preserve8 |
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.text |
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function ff_h264_idct_add_neon, export=1 |
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vld1.64 {d0-d3}, [r1,:128] |
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vswp d1, d2 |
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vadd.i16 d4, d0, d1 |
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vshr.s16 q8, q1, #1 |
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vsub.i16 d5, d0, d1 |
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vadd.i16 d6, d2, d17 |
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vsub.i16 d7, d16, d3 |
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vadd.i16 q0, q2, q3 |
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vsub.i16 q1, q2, q3 |
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vtrn.16 d0, d1 |
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vtrn.16 d3, d2 |
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vtrn.32 d0, d3 |
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vtrn.32 d1, d2 |
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vadd.i16 d4, d0, d3 |
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vld1.32 {d18[0]}, [r0,:32], r2 |
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vswp d1, d3 |
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vshr.s16 q8, q1, #1 |
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vld1.32 {d19[1]}, [r0,:32], r2 |
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vsub.i16 d5, d0, d1 |
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vld1.32 {d18[1]}, [r0,:32], r2 |
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vadd.i16 d6, d16, d3 |
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vld1.32 {d19[0]}, [r0,:32], r2 |
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vsub.i16 d7, d2, d17 |
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sub r0, r0, r2, lsl #2 |
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vadd.i16 q0, q2, q3 |
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vsub.i16 q1, q2, q3 |
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vrshr.s16 q0, q0, #6 |
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vrshr.s16 q1, q1, #6 |
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vaddw.u8 q0, q0, d18 |
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vaddw.u8 q1, q1, d19 |
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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,:32], r2 |
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vst1.32 {d1[1]}, [r0,:32], r2 |
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vst1.32 {d0[1]}, [r0,:32], r2 |
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vst1.32 {d1[0]}, [r0,:32], r2 |
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bx lr |
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endfunc |
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function ff_h264_idct_dc_add_neon, export=1 |
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vld1.16 {d2[],d3[]}, [r1,:16] |
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vrshr.s16 q1, q1, #6 |
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vld1.32 {d0[0]}, [r0,:32], r2 |
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vld1.32 {d0[1]}, [r0,:32], r2 |
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vaddw.u8 q2, q1, d0 |
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vld1.32 {d1[0]}, [r0,:32], r2 |
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vld1.32 {d1[1]}, [r0,:32], r2 |
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vaddw.u8 q1, q1, d1 |
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vqmovun.s16 d0, q2 |
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vqmovun.s16 d1, q1 |
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sub r0, r0, r2, lsl #2 |
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vst1.32 {d0[0]}, [r0,:32], r2 |
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vst1.32 {d0[1]}, [r0,:32], r2 |
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vst1.32 {d1[0]}, [r0,:32], r2 |
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vst1.32 {d1[1]}, [r0,:32], r2 |
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bx lr |
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endfunc |
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function ff_h264_idct_add16_neon, export=1 |
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push {r4-r8,lr} |
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mov r4, r0 |
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mov r5, r1 |
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mov r1, r2 |
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mov r2, r3 |
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ldr r6, [sp, #24] |
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movrel r7, scan8 |
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mov ip, #16 |
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1: ldrb r8, [r7], #1 |
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ldr r0, [r5], #4 |
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ldrb r8, [r6, r8] |
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subs r8, r8, #1 |
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blt 2f |
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ldrsh lr, [r1] |
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add r0, r0, r4 |
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movne lr, #0 |
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cmp lr, #0 |
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adrne lr, ff_h264_idct_dc_add_neon |
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adreq lr, ff_h264_idct_add_neon |
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blx lr |
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2: subs ip, ip, #1 |
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add r1, r1, #32 |
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bne 1b |
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pop {r4-r8,pc} |
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endfunc |
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function ff_h264_idct_add16intra_neon, export=1 |
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push {r4-r8,lr} |
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mov r4, r0 |
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mov r5, r1 |
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mov r1, r2 |
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mov r2, r3 |
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ldr r6, [sp, #24] |
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movrel r7, scan8 |
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mov ip, #16 |
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1: ldrb r8, [r7], #1 |
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ldr r0, [r5], #4 |
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ldrb r8, [r6, r8] |
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add r0, r0, r4 |
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cmp r8, #0 |
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ldrsh r8, [r1] |
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adrne lr, ff_h264_idct_add_neon |
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adreq lr, ff_h264_idct_dc_add_neon |
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cmpeq r8, #0 |
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blxne lr |
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subs ip, ip, #1 |
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add r1, r1, #32 |
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bne 1b |
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pop {r4-r8,pc} |
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endfunc |
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function ff_h264_idct_add8_neon, export=1 |
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push {r4-r10,lr} |
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ldm r0, {r4,r9} |
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add r5, r1, #16*4 |
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add r1, r2, #16*32 |
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mov r2, r3 |
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ldr r6, [sp, #32] |
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movrel r7, scan8+16 |
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mov ip, #8 |
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1: ldrb r8, [r7], #1 |
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ldr r0, [r5], #4 |
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ldrb r8, [r6, r8] |
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tst ip, #4 |
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addeq r0, r0, r4 |
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addne r0, r0, r9 |
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cmp r8, #0 |
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ldrsh r8, [r1] |
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adrne lr, ff_h264_idct_add_neon |
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adreq lr, ff_h264_idct_dc_add_neon |
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cmpeq r8, #0 |
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blxne lr |
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subs ip, ip, #1 |
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add r1, r1, #32 |
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bne 1b |
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pop {r4-r10,pc} |
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endfunc |
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.section .rodata |
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scan8: .byte 4+1*8, 5+1*8, 4+2*8, 5+2*8 |
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.byte 6+1*8, 7+1*8, 6+2*8, 7+2*8 |
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.byte 4+3*8, 5+3*8, 4+4*8, 5+4*8 |
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.byte 6+3*8, 7+3*8, 6+4*8, 7+4*8 |
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.byte 1+1*8, 2+1*8 |
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.byte 1+2*8, 2+2*8 |
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.byte 1+4*8, 2+4*8 |
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.byte 1+5*8, 2+5*8
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