repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
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 | ||
| 24 | function 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 | |
| 33 | endfunc | |
| 34 | ||
| 35 | function 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 | |
| 42 | 1: | |
| 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 | |
| 64 | 2: | |
| 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 | |
| 74 | endfunc | |
| 75 | ||
| 76 | function 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] | |
| 87 | 1: 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 | |
| 101 | 2: 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} | |
| 107 | endfunc |