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annotate libavcodec/arm/aac.h @ 6:55fb61482128

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VSs working
author Nina Engelhardt <nengel@mailbox.tu-berlin.de>
date Wed, 06 Mar 2013 14:35:39 +0100
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nengel@2 1 /*
nengel@2 2 * Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
nengel@2 3 *
nengel@2 4 * This file is part of FFmpeg.
nengel@2 5 *
nengel@2 6 * FFmpeg is free software; you can redistribute it and/or
nengel@2 7 * modify it under the terms of the GNU Lesser General Public
nengel@2 8 * License as published by the Free Software Foundation; either
nengel@2 9 * version 2.1 of the License, or (at your option) any later version.
nengel@2 10 *
nengel@2 11 * FFmpeg is distributed in the hope that it will be useful,
nengel@2 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
nengel@2 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
nengel@2 14 * Lesser General Public License for more details.
nengel@2 15 *
nengel@2 16 * You should have received a copy of the GNU Lesser General Public
nengel@2 17 * License along with FFmpeg; if not, write to the Free Software
nengel@2 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
nengel@2 19 */
nengel@2 20
nengel@2 21 #ifndef AVCODEC_ARM_AAC_H
nengel@2 22 #define AVCODEC_ARM_AAC_H
nengel@2 23
nengel@2 24 #include "config.h"
nengel@2 25
nengel@2 26 #if HAVE_NEON && HAVE_INLINE_ASM
nengel@2 27
nengel@2 28 #define VMUL2 VMUL2
nengel@2 29 static inline float *VMUL2(float *dst, const float *v, unsigned idx,
nengel@2 30 const float *scale)
nengel@2 31 {
nengel@2 32 unsigned v0, v1;
nengel@2 33 __asm__ volatile ("ubfx %0, %4, #0, #4 \n\t"
nengel@2 34 "ubfx %1, %4, #4, #4 \n\t"
nengel@2 35 "ldr %0, [%3, %0, lsl #2] \n\t"
nengel@2 36 "ldr %1, [%3, %1, lsl #2] \n\t"
nengel@2 37 "vld1.32 {d1[]}, [%5,:32] \n\t"
nengel@2 38 "vmov d0, %0, %1 \n\t"
nengel@2 39 "vmul.f32 d0, d0, d1 \n\t"
nengel@2 40 "vst1.32 {d0}, [%2,:64]! \n\t"
nengel@2 41 : "=&r"(v0), "=&r"(v1), "+r"(dst)
nengel@2 42 : "r"(v), "r"(idx), "r"(scale)
nengel@2 43 : "d0", "d1");
nengel@2 44 return dst;
nengel@2 45 }
nengel@2 46
nengel@2 47 #define VMUL4 VMUL4
nengel@2 48 static inline float *VMUL4(float *dst, const float *v, unsigned idx,
nengel@2 49 const float *scale)
nengel@2 50 {
nengel@2 51 unsigned v0, v1, v2, v3;
nengel@2 52 __asm__ volatile ("ubfx %0, %6, #0, #2 \n\t"
nengel@2 53 "ubfx %1, %6, #2, #2 \n\t"
nengel@2 54 "ldr %0, [%5, %0, lsl #2] \n\t"
nengel@2 55 "ubfx %2, %6, #4, #2 \n\t"
nengel@2 56 "ldr %1, [%5, %1, lsl #2] \n\t"
nengel@2 57 "ubfx %3, %6, #6, #2 \n\t"
nengel@2 58 "ldr %2, [%5, %2, lsl #2] \n\t"
nengel@2 59 "vmov d0, %0, %1 \n\t"
nengel@2 60 "ldr %3, [%5, %3, lsl #2] \n\t"
nengel@2 61 "vld1.32 {d2[],d3[]},[%7,:32] \n\t"
nengel@2 62 "vmov d1, %2, %3 \n\t"
nengel@2 63 "vmul.f32 q0, q0, q1 \n\t"
nengel@2 64 "vst1.32 {q0}, [%4,:128]! \n\t"
nengel@2 65 : "=&r"(v0), "=&r"(v1), "=&r"(v2), "=&r"(v3), "+r"(dst)
nengel@2 66 : "r"(v), "r"(idx), "r"(scale)
nengel@2 67 : "d0", "d1", "d2", "d3");
nengel@2 68 return dst;
nengel@2 69 }
nengel@2 70
nengel@2 71 #define VMUL2S VMUL2S
nengel@2 72 static inline float *VMUL2S(float *dst, const float *v, unsigned idx,
nengel@2 73 unsigned sign, const float *scale)
nengel@2 74 {
nengel@2 75 unsigned v0, v1, v2, v3;
nengel@2 76 __asm__ volatile ("ubfx %0, %6, #0, #4 \n\t"
nengel@2 77 "ubfx %1, %6, #4, #4 \n\t"
nengel@2 78 "ldr %0, [%5, %0, lsl #2] \n\t"
nengel@2 79 "lsl %2, %8, #30 \n\t"
nengel@2 80 "ldr %1, [%5, %1, lsl #2] \n\t"
nengel@2 81 "lsl %3, %8, #31 \n\t"
nengel@2 82 "vmov d0, %0, %1 \n\t"
nengel@2 83 "bic %2, %2, #1<<30 \n\t"
nengel@2 84 "vld1.32 {d1[]}, [%7,:32] \n\t"
nengel@2 85 "vmov d2, %2, %3 \n\t"
nengel@2 86 "veor d0, d0, d2 \n\t"
nengel@2 87 "vmul.f32 d0, d0, d1 \n\t"
nengel@2 88 "vst1.32 {d0}, [%4,:64]! \n\t"
nengel@2 89 : "=&r"(v0), "=&r"(v1), "=&r"(v2), "=&r"(v3), "+r"(dst)
nengel@2 90 : "r"(v), "r"(idx), "r"(scale), "r"(sign)
nengel@2 91 : "d0", "d1", "d2");
nengel@2 92 return dst;
nengel@2 93 }
nengel@2 94
nengel@2 95 #define VMUL4S VMUL4S
nengel@2 96 static inline float *VMUL4S(float *dst, const float *v, unsigned idx,
nengel@2 97 unsigned sign, const float *scale)
nengel@2 98 {
nengel@2 99 unsigned v0, v1, v2, v3, nz;
nengel@2 100 __asm__ volatile ("vld1.32 {d2[],d3[]},[%9,:32] \n\t"
nengel@2 101 "ubfx %0, %8, #0, #2 \n\t"
nengel@2 102 "ubfx %1, %8, #2, #2 \n\t"
nengel@2 103 "ldr %0, [%7, %0, lsl #2] \n\t"
nengel@2 104 "ubfx %2, %8, #4, #2 \n\t"
nengel@2 105 "ldr %1, [%7, %1, lsl #2] \n\t"
nengel@2 106 "ubfx %3, %8, #6, #2 \n\t"
nengel@2 107 "ldr %2, [%7, %2, lsl #2] \n\t"
nengel@2 108 "vmov d0, %0, %1 \n\t"
nengel@2 109 "ldr %3, [%7, %3, lsl #2] \n\t"
nengel@2 110 "lsr %6, %8, #12 \n\t"
nengel@2 111 "rbit %6, %6 \n\t"
nengel@2 112 "vmov d1, %2, %3 \n\t"
nengel@2 113 "lsls %6, %6, #1 \n\t"
nengel@2 114 "and %0, %5, #1<<31 \n\t"
nengel@2 115 "lslcs %5, %5, #1 \n\t"
nengel@2 116 "lsls %6, %6, #1 \n\t"
nengel@2 117 "and %1, %5, #1<<31 \n\t"
nengel@2 118 "lslcs %5, %5, #1 \n\t"
nengel@2 119 "lsls %6, %6, #1 \n\t"
nengel@2 120 "and %2, %5, #1<<31 \n\t"
nengel@2 121 "lslcs %5, %5, #1 \n\t"
nengel@2 122 "vmov d4, %0, %1 \n\t"
nengel@2 123 "and %3, %5, #1<<31 \n\t"
nengel@2 124 "vmov d5, %2, %3 \n\t"
nengel@2 125 "veor q0, q0, q2 \n\t"
nengel@2 126 "vmul.f32 q0, q0, q1 \n\t"
nengel@2 127 "vst1.32 {q0}, [%4,:128]! \n\t"
nengel@2 128 : "=&r"(v0), "=&r"(v1), "=&r"(v2), "=&r"(v3), "+r"(dst),
nengel@2 129 "+r"(sign), "=r"(nz)
nengel@2 130 : "r"(v), "r"(idx), "r"(scale)
nengel@2 131 : "d0", "d1", "d2", "d3", "d4", "d5");
nengel@2 132 return dst;
nengel@2 133 }
nengel@2 134
nengel@2 135 #endif /* HAVE_NEON && HAVE_INLINE_ASM */
nengel@2 136
nengel@2 137 #endif /* AVCODEC_ARM_AAC_H */