1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 /** \file IID_to_MPH.c Interface ID to MPH mapping */ 18 19 #include "SLES/OpenSLES.h" 20 #include "MPH.h" 21 #include <assert.h> 22 #include <string.h> 23 24 extern const struct SLInterfaceID_ SL_IID_array[MPH_MAX]; 25 26 /** \brief Map SLInterfaceID to its minimal perfect hash (MPH), or -1 if unknown */ 27 28 int IID_to_MPH(const SLInterfaceID iid) 29 { 30 #define MAX_HASH_VALUE 115 31 static const unsigned char asso_values[] = 32 { 33 5, 116, 116, 61, 116, 116, 7, 116, 116, 7, 34 116, 12, 116, 116, 116, 46, 116, 116, 116, 116, 35 116, 116, 56, 116, 116, 36, 116, 116, 116, 116, 36 116, 7, 20, 116, 116, 116, 116, 116, 116, 116, 37 116, 116, 41, 20, 36, 116, 21, 116, 116, 116, 38 116, 116, 116, 26, 116, 2, 116, 116, 116, 116, 39 116, 51, 116, 51, 55, 116, 116, 116, 116, 116, 40 116, 16, 116, 116, 116, 116, 116, 116, 116, 116, 41 21, 116, 116, 116, 116, 116, 26, 116, 116, 116, 42 11, 116, 116, 116, 116, 116, 40, 11, 116, 60, 43 116, 116, 116, 116, 116, 116, 6, 116, 116, 116, 44 116, 116, 1, 116, 116, 116, 116, 116, 116, 116, 45 116, 1, 55, 6, 116, 116, 116, 116, 45, 116, 46 116, 1, 116, 116, 116, 116, 116, 1, 116, 116, 47 116, 60, 116, 116, 116, 116, 116, 116, 116, 116, 48 116, 55, 116, 116, 116, 116, 116, 116, 116, 116, 49 10, 116, 116, 116, 116, 116, 116, 116, 116, 116, 50 45, 116, 116, 116, 40, 116, 116, 116, 55, 116, 51 40, 116, 116, 116, 116, 116, 116, 116, 116, 116, 52 116, 116, 15, 116, 35, 116, 45, 5, 116, 50, 53 116, 116, 116, 116, 116, 116, 116, 116, 116, 116, 54 116, 116, 40, 116, 116, 50, 116, 116, 116, 116, 55 116, 25, 116, 116, 15, 35, 116, 116, 10, 116, 56 116, 116, 116, 116, 116, 10, 0, 116, 116, 15, 57 30, 116, 116, 116, 116, 116, 55, 116, 116, 116, 58 116, 116, 116, 116, 0, 116 59 }; 60 static const signed char hash_to_MPH[] = { 61 MPH_NULL, 62 -1, 63 -1, 64 -1, 65 -1, 66 MPH_OUTPUTMIXEXT, 67 MPH_3DSOURCE, 68 MPH_VIRTUALIZER, 69 -1, 70 -1, 71 MPH_DYNAMICSOURCE, 72 MPH_ENGINECAPABILITIES, 73 MPH_MIDITEMPO, 74 -1, 75 -1, 76 MPH_RECORD, 77 MPH_ANDROIDCONFIGURATION, 78 MPH_EQUALIZER, 79 -1, 80 -1, 81 MPH_VISUALIZATION, 82 MPH_ANDROIDEFFECTSEND, 83 MPH_VOLUME, 84 -1, 85 -1, 86 MPH_3DGROUPING, 87 MPH_MUTESOLO, 88 MPH_BASSBOOST, 89 -1, 90 -1, 91 MPH_PLAY, 92 MPH_EFFECTSEND, 93 -1, 94 -1, 95 -1, 96 MPH_BUFFERQUEUE, 97 MPH_3DMACROSCOPIC, 98 -1, 99 -1, 100 -1, 101 MPH_3DLOCATION, 102 MPH_OBJECT, 103 -1, 104 -1, 105 -1, 106 MPH_MIDIMESSAGE, 107 MPH_ANDROIDEFFECTCAPABILITIES, 108 -1, 109 -1, 110 -1, 111 MPH_SEEK, 112 MPH_RATEPITCH, 113 -1, 114 -1, 115 -1, 116 MPH_PITCH, 117 MPH_PRESETREVERB, 118 -1, 119 -1, 120 -1, 121 MPH_METADATATRAVERSAL, 122 MPH_AUDIODECODERCAPABILITIES, 123 -1, 124 -1, 125 -1, 126 MPH_ENVIRONMENTALREVERB, 127 MPH_MIDITIME, 128 -1, 129 -1, 130 -1, 131 MPH_AUDIOIODEVICECAPABILITIES, 132 MPH_3DCOMMIT, 133 -1, 134 -1, 135 -1, 136 MPH_DEVICEVOLUME, 137 MPH_PLAYBACKRATE, 138 -1, 139 -1, 140 -1, 141 MPH_ANDROIDEFFECT, 142 MPH_LED, 143 -1, 144 -1, 145 -1, 146 MPH_3DDOPPLER, 147 MPH_PREFETCHSTATUS, 148 -1, 149 -1, 150 -1, 151 MPH_METADATAEXTRACTION, 152 MPH_ANDROIDSIMPLEBUFFERQUEUE, 153 -1, 154 -1, 155 -1, 156 MPH_OUTPUTMIX, 157 MPH_VIBRA, 158 -1, 159 -1, 160 -1, 161 MPH_ENGINE, 162 MPH_AUDIOENCODERCAPABILITIES, 163 -1, 164 -1, 165 -1, 166 MPH_AUDIOENCODER, 167 MPH_MIDIMUTESOLO, 168 -1, 169 -1, 170 -1, 171 MPH_THREADSYNC, 172 -1, 173 -1, 174 -1, 175 -1, 176 MPH_DYNAMICINTERFACEMANAGEMENT 177 }; 178 if (&SL_IID_array[0] <= iid && &SL_IID_array[MPH_MAX] > iid) 179 return iid - &SL_IID_array[0]; 180 if (NULL != iid) { 181 unsigned key = asso_values[((unsigned char *)iid)[3]] + 182 asso_values[((unsigned char *)iid)[0]]; 183 if (key <= MAX_HASH_VALUE) { 184 int MPH = hash_to_MPH[key]; 185 if (MPH >= 0) { 186 assert(MPH < MPH_MAX); 187 SLInterfaceID trial = &SL_IID_array[MPH]; 188 if (!memcmp(iid, trial, sizeof(struct SLInterfaceID_))) 189 return MPH; 190 } 191 } 192 } 193 return -1; 194 } 195
