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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * Copyright (c) 2010 Mans Rullgard |
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| 3 | * |
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| 4 | * This file is part of FFmpeg. |
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| 5 | * |
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| 6 | * FFmpeg is free software; you can redistribute it and/or |
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| 7 | * modify it under the terms of the GNU Lesser General Public |
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| 8 | * License as published by the Free Software Foundation; either |
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| 9 | * version 2.1 of the License, or (at your option) any later version. |
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| 10 | * |
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| 11 | * FFmpeg is distributed in the hope that it will be useful, |
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 14 | * Lesser General Public License for more details. |
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| 15 | * |
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| 16 | * You should have received a copy of the GNU Lesser General Public |
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| 17 | * License along with FFmpeg; if not, write to the Free Software |
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| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 19 | */ |
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| 20 | |||
| 21 | #include "libavutil/arm/asm.S" |
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| 22 | #include "asm-offsets.h" |
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| 23 | |||
| 24 | function ff_dct_unquantize_h263_inter_neon, export=1 |
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| 25 | add r12, r0, #BLOCK_LAST_INDEX |
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| 26 | ldr r12, [r12, r2, lsl #2] |
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| 27 | add r0, r0, #INTER_SCANTAB_RASTER_END |
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| 28 | ldrb r12, [r0, r12] |
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| 29 | sub r2, r3, #1 |
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| 30 | lsl r0, r3, #1 |
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| 31 | orr r2, r2, #1 |
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| 32 | add r3, r12, #1 |
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| 33 | endfunc |
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| 34 | |||
| 35 | function ff_dct_unquantize_h263_neon, export=1 |
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| 36 | vdup.16 q15, r0 @ qmul |
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| 37 | vdup.16 q14, r2 @ qadd |
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| 38 | vneg.s16 q13, q14 |
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| 39 | cmp r3, #4 |
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| 40 | mov r0, r1 |
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| 41 | ble 2f |
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| 42 | 1: |
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| 43 | vld1.16 {q0}, [r0,:128]! |
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| 44 | vclt.s16 q3, q0, #0 |
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| 45 | vld1.16 {q8}, [r0,:128]! |
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| 46 | vceq.s16 q1, q0, #0 |
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| 47 | vmul.s16 q2, q0, q15 |
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| 48 | vclt.s16 q11, q8, #0 |
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| 49 | vmul.s16 q10, q8, q15 |
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| 50 | vbsl q3, q13, q14 |
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| 51 | vbsl q11, q13, q14 |
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| 52 | vadd.s16 q2, q2, q3 |
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| 53 | vceq.s16 q9, q8, #0 |
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| 54 | vadd.s16 q10, q10, q11 |
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| 55 | vbif q0, q2, q1 |
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| 56 | vbif q8, q10, q9 |
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| 57 | subs r3, r3, #16 |
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| 58 | vst1.16 {q0}, [r1,:128]! |
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| 59 | vst1.16 {q8}, [r1,:128]! |
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| 60 | it le |
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| 61 | bxle lr |
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| 62 | cmp r3, #8 |
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| 63 | bgt 1b |
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| 64 | 2: |
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| 65 | vld1.16 {d0}, [r0,:64] |
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| 66 | vclt.s16 d3, d0, #0 |
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| 67 | vceq.s16 d1, d0, #0 |
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| 68 | vmul.s16 d2, d0, d30 |
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| 69 | vbsl d3, d26, d28 |
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| 70 | vadd.s16 d2, d2, d3 |
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| 71 | vbif d0, d2, d1 |
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| 72 | vst1.16 {d0}, [r1,:64] |
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| 73 | bx lr |
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| 74 | endfunc |
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| 75 | |||
| 76 | function ff_dct_unquantize_h263_intra_neon, export=1 |
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| 77 | push {r4-r6,lr} |
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| 78 | add r12, r0, #BLOCK_LAST_INDEX |
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| 79 | ldr r6, [r0, #AC_PRED] |
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| 80 | add lr, r0, #INTER_SCANTAB_RASTER_END |
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| 81 | cmp r6, #0 |
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| 82 | it ne |
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| 83 | movne r12, #63 |
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| 84 | bne 1f |
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| 85 | ldr r12, [r12, r2, lsl #2] |
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| 86 | ldrb r12, [lr, r12] |
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| 87 | 1: ldr r5, [r0, #H263_AIC] |
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| 88 | ldrsh r4, [r1] |
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| 89 | cmp r5, #0 |
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| 90 | mov r5, r1 |
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| 91 | it ne |
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| 92 | movne r2, #0 |
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| 93 | bne 2f |
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| 94 | cmp r2, #4 |
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| 95 | it ge |
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| 96 | addge r0, r0, #4 |
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| 97 | sub r2, r3, #1 |
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| 98 | ldr r6, [r0, #Y_DC_SCALE] |
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| 99 | orr r2, r2, #1 |
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| 100 | smulbb r4, r4, r6 |
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| 101 | 2: lsl r0, r3, #1 |
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| 102 | add r3, r12, #1 |
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| 103 | bl ff_dct_unquantize_h263_neon |
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| 104 | vmov.16 d0[0], r4 |
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| 105 | vst1.16 {d0[0]}, [r5] |
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| 106 | pop {r4-r6,pc} |
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| 107 | endfunc |