1/* 2 * Copyright (c) 2010 Mans Rullgard 3 * 4 * This file is part of FFmpeg. 5 * 6 * FFmpeg is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * FFmpeg is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with FFmpeg; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 21#include "libavutil/arm/asm.S" 22#include "asm-offsets.h" 23 24function ff_dct_unquantize_h263_inter_neon, export=1 25 add r12, r0, #BLOCK_LAST_INDEX 26 ldr r12, [r12, r2, lsl #2] 27 add r0, r0, #INTER_SCANTAB_RASTER_END 28 ldrb r12, [r0, r12] 29 sub r2, r3, #1 30 lsl r0, r3, #1 31 orr r2, r2, #1 32 add r3, r12, #1 33endfunc 34 35function ff_dct_unquantize_h263_neon, export=1 36 vdup.16 q15, r0 @ qmul 37 vdup.16 q14, r2 @ qadd 38 vneg.s16 q13, q14 39 cmp r3, #4 40 mov r0, r1 41 ble 2f 421: 43 vld1.16 {q0}, [r0,:128]! 44 vclt.s16 q3, q0, #0 45 vld1.16 {q8}, [r0,:128]! 46 vceq.s16 q1, q0, #0 47 vmul.s16 q2, q0, q15 48 vclt.s16 q11, q8, #0 49 vmul.s16 q10, q8, q15 50 vbsl q3, q13, q14 51 vbsl q11, q13, q14 52 vadd.s16 q2, q2, q3 53 vceq.s16 q9, q8, #0 54 vadd.s16 q10, q10, q11 55 vbif q0, q2, q1 56 vbif q8, q10, q9 57 subs r3, r3, #16 58 vst1.16 {q0}, [r1,:128]! 59 vst1.16 {q8}, [r1,:128]! 60 it le 61 bxle lr 62 cmp r3, #8 63 bgt 1b 642: 65 vld1.16 {d0}, [r0,:64] 66 vclt.s16 d3, d0, #0 67 vceq.s16 d1, d0, #0 68 vmul.s16 d2, d0, d30 69 vbsl d3, d26, d28 70 vadd.s16 d2, d2, d3 71 vbif d0, d2, d1 72 vst1.16 {d0}, [r1,:64] 73 bx lr 74endfunc 75 76function ff_dct_unquantize_h263_intra_neon, export=1 77 push {r4-r6,lr} 78 add r12, r0, #BLOCK_LAST_INDEX 79 ldr r6, [r0, #AC_PRED] 80 add lr, r0, #INTER_SCANTAB_RASTER_END 81 cmp r6, #0 82 it ne 83 movne r12, #63 84 bne 1f 85 ldr r12, [r12, r2, lsl #2] 86 ldrb r12, [lr, r12] 871: ldr r5, [r0, #H263_AIC] 88 ldrsh r4, [r1] 89 cmp r5, #0 90 mov r5, r1 91 it ne 92 movne r2, #0 93 bne 2f 94 cmp r2, #4 95 it ge 96 addge r0, r0, #4 97 sub r2, r3, #1 98 ldr r6, [r0, #Y_DC_SCALE] 99 orr r2, r2, #1 100 smulbb r4, r4, r6 1012: lsl r0, r3, #1 102 add r3, r12, #1 103 bl X(ff_dct_unquantize_h263_neon) 104 vmov.16 d0[0], r4 105 vst1.16 {d0[0]}, [r5] 106 pop {r4-r6,pc} 107endfunc 108