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      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 /* EngineCapabilities implementation */
     18 
     19 #include "sles_allinclusive.h"
     20 
     21 
     22 static SLresult IEngineCapabilities_QuerySupportedProfiles(
     23     SLEngineCapabilitiesItf self, SLuint16 *pProfilesSupported)
     24 {
     25     SL_ENTER_INTERFACE
     26 
     27     if (NULL == pProfilesSupported) {
     28         result = SL_RESULT_PARAMETER_INVALID;
     29     } else {
     30         // The generic implementation doesn't implement any of the profiles, they shouldn't be
     31         // declared as supported. Also exclude the fake profiles BASE and OPTIONAL.
     32         *pProfilesSupported = USE_PROFILES &
     33                 (USE_PROFILES_GAME | USE_PROFILES_MUSIC | USE_PROFILES_PHONE);
     34         result = SL_RESULT_SUCCESS;
     35     }
     36 
     37     SL_LEAVE_INTERFACE
     38 }
     39 
     40 
     41 static SLresult IEngineCapabilities_QueryAvailableVoices(SLEngineCapabilitiesItf self,
     42     SLuint16 voiceType, SLint16 *pNumMaxVoices, SLboolean *pIsAbsoluteMax, SLint16 *pNumFreeVoices)
     43 {
     44     SL_ENTER_INTERFACE
     45 
     46     switch (voiceType) {
     47     case SL_VOICETYPE_2D_AUDIO:
     48     case SL_VOICETYPE_MIDI:
     49     case SL_VOICETYPE_3D_AUDIO:
     50     case SL_VOICETYPE_3D_MIDIOUTPUT:
     51         if (NULL != pNumMaxVoices)
     52             *pNumMaxVoices = MAX_INSTANCE - 2;
     53         if (NULL != pIsAbsoluteMax)
     54             *pIsAbsoluteMax = SL_BOOLEAN_TRUE;
     55         if (NULL != pNumFreeVoices)
     56             *pNumFreeVoices = MAX_INSTANCE - 2;
     57         result = SL_RESULT_SUCCESS;
     58         break;
     59     default:
     60         result = SL_RESULT_PARAMETER_INVALID;
     61         break;
     62     }
     63 
     64     SL_LEAVE_INTERFACE
     65 }
     66 
     67 
     68 static SLresult IEngineCapabilities_QueryNumberOfMIDISynthesizers(
     69     SLEngineCapabilitiesItf self, SLint16 *pNum)
     70 {
     71     SL_ENTER_INTERFACE
     72 
     73     if (NULL == pNum) {
     74         result = SL_RESULT_PARAMETER_INVALID;
     75     } else {
     76         *pNum = 1;
     77         result = SL_RESULT_SUCCESS;
     78     }
     79 
     80     SL_LEAVE_INTERFACE
     81 }
     82 
     83 
     84 static SLresult IEngineCapabilities_QueryAPIVersion(SLEngineCapabilitiesItf self,
     85     SLint16 *pMajor, SLint16 *pMinor, SLint16 *pStep)
     86 {
     87     SL_ENTER_INTERFACE
     88 
     89     if (!(NULL != pMajor && NULL != pMinor && NULL != pStep)) {
     90         result = SL_RESULT_PARAMETER_INVALID;
     91     } else {
     92         *pMajor = 1;
     93         *pMinor = 0;
     94         *pStep = 1;
     95         result = SL_RESULT_SUCCESS;
     96     }
     97 
     98     SL_LEAVE_INTERFACE
     99 }
    100 
    101 
    102 SLresult IEngineCapabilities_QueryLEDCapabilities(SLEngineCapabilitiesItf self,
    103     SLuint32 *pIndex, SLuint32 *pLEDDeviceID, SLLEDDescriptor *pDescriptor)
    104 {
    105     SL_ENTER_INTERFACE
    106 
    107     IEngineCapabilities *thiz = (IEngineCapabilities *) self;
    108     const struct LED_id_descriptor *id_descriptor;
    109     SLuint32 index;
    110     if (NULL != pIndex) {
    111         result = SL_RESULT_SUCCESS;
    112         if (NULL != pLEDDeviceID || NULL != pDescriptor) {
    113             index = *pIndex;
    114             if (index >= thiz->mMaxIndexLED) {
    115                 result = SL_RESULT_PARAMETER_INVALID;
    116             } else {
    117                 id_descriptor = &LED_id_descriptors[index];
    118                 if (NULL != pLEDDeviceID)
    119                     *pLEDDeviceID = id_descriptor->id;
    120                 if (NULL != pDescriptor)
    121                     *pDescriptor = *id_descriptor->descriptor;
    122             }
    123         }
    124         *pIndex = thiz->mMaxIndexLED;
    125     } else {
    126         result = SL_RESULT_PARAMETER_INVALID;
    127         if (NULL != pLEDDeviceID && NULL != pDescriptor) {
    128             SLuint32 id = *pLEDDeviceID;
    129             for (index = 0; index < thiz->mMaxIndexLED; ++index) {
    130                 id_descriptor = &LED_id_descriptors[index];
    131                 if (id == id_descriptor->id) {
    132                     *pDescriptor = *id_descriptor->descriptor;
    133                     result = SL_RESULT_SUCCESS;
    134                     break;
    135                 }
    136             }
    137         }
    138     }
    139 
    140     SL_LEAVE_INTERFACE
    141 }
    142 
    143 
    144 SLresult IEngineCapabilities_QueryVibraCapabilities(SLEngineCapabilitiesItf self,
    145     SLuint32 *pIndex, SLuint32 *pVibraDeviceID, SLVibraDescriptor *pDescriptor)
    146 {
    147     SL_ENTER_INTERFACE
    148 
    149     IEngineCapabilities *thiz = (IEngineCapabilities *) self;
    150     const struct Vibra_id_descriptor *id_descriptor;
    151     SLuint32 index;
    152     if (NULL != pIndex) {
    153         result = SL_RESULT_SUCCESS;
    154         if (NULL != pVibraDeviceID || NULL != pDescriptor) {
    155             index = *pIndex;
    156             if (index >= thiz->mMaxIndexVibra) {
    157                 result = SL_RESULT_PARAMETER_INVALID;
    158             } else {
    159                 id_descriptor = &Vibra_id_descriptors[index];
    160                 if (NULL != pVibraDeviceID)
    161                     *pVibraDeviceID = id_descriptor->id;
    162                 if (NULL != pDescriptor)
    163                     *pDescriptor = *id_descriptor->descriptor;
    164             }
    165         }
    166         *pIndex = thiz->mMaxIndexVibra;
    167     } else {
    168         result = SL_RESULT_PARAMETER_INVALID;
    169         if (NULL != pVibraDeviceID && NULL != pDescriptor) {
    170             SLuint32 id = *pVibraDeviceID;
    171             for (index = 0; index < thiz->mMaxIndexVibra; ++index) {
    172                 id_descriptor = &Vibra_id_descriptors[index];
    173                 if (id == id_descriptor->id) {
    174                     *pDescriptor = *id_descriptor->descriptor;
    175                     result = SL_RESULT_SUCCESS;
    176                     break;
    177                 }
    178             }
    179         }
    180     }
    181 
    182     SL_LEAVE_INTERFACE
    183 }
    184 
    185 
    186 static SLresult IEngineCapabilities_IsThreadSafe(SLEngineCapabilitiesItf self,
    187     SLboolean *pIsThreadSafe)
    188 {
    189     SL_ENTER_INTERFACE
    190 
    191     if (NULL == pIsThreadSafe) {
    192         result = SL_RESULT_PARAMETER_INVALID;
    193     } else {
    194         IEngineCapabilities *thiz = (IEngineCapabilities *) self;
    195         *pIsThreadSafe = thiz->mThreadSafe;
    196         result = SL_RESULT_SUCCESS;
    197     }
    198 
    199     SL_LEAVE_INTERFACE
    200 }
    201 
    202 
    203 static const struct SLEngineCapabilitiesItf_ IEngineCapabilities_Itf = {
    204     IEngineCapabilities_QuerySupportedProfiles,
    205     IEngineCapabilities_QueryAvailableVoices,
    206     IEngineCapabilities_QueryNumberOfMIDISynthesizers,
    207     IEngineCapabilities_QueryAPIVersion,
    208     IEngineCapabilities_QueryLEDCapabilities,
    209     IEngineCapabilities_QueryVibraCapabilities,
    210     IEngineCapabilities_IsThreadSafe
    211 };
    212 
    213 void IEngineCapabilities_init(void *self)
    214 {
    215     IEngineCapabilities *thiz = (IEngineCapabilities *) self;
    216     thiz->mItf = &IEngineCapabilities_Itf;
    217     // mThreadSafe is initialized in slCreateEngine
    218     const struct LED_id_descriptor *id_descriptor_LED = LED_id_descriptors;
    219     while (NULL != id_descriptor_LED->descriptor)
    220         ++id_descriptor_LED;
    221     thiz->mMaxIndexLED = id_descriptor_LED - LED_id_descriptors;
    222     const struct Vibra_id_descriptor *id_descriptor_Vibra = Vibra_id_descriptors;
    223     while (NULL != id_descriptor_Vibra->descriptor)
    224         ++id_descriptor_Vibra;
    225     thiz->mMaxIndexVibra = id_descriptor_Vibra - Vibra_id_descriptors;
    226 }
    227