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      1 /*
      2  * Copyright (C) 2010-2010 NXP Software
      3  * Copyright (C) 2009 The Android Open Source Project
      4  *
      5  * Licensed under the Apache License, Version 2.0 (the "License");
      6  * you may not use this file except in compliance with the License.
      7  * You may obtain a copy of the License at
      8  *
      9  *      http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  * Unless required by applicable law or agreed to in writing, software
     12  * distributed under the License is distributed on an "AS IS" BASIS,
     13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  * See the License for the specific language governing permissions and
     15  * limitations under the License.
     16  */
     17 #ifndef LVM_FLOAT
     18 typedef float LVM_FLOAT;
     19 #endif
     20 #define LOG_TAG "Reverb"
     21 #define ARRAY_SIZE(array) (sizeof (array) / sizeof (array)[0])
     22 //#define LOG_NDEBUG 0
     23 
     24 #include <assert.h>
     25 #include <inttypes.h>
     26 #include <new>
     27 #include <stdlib.h>
     28 #include <string.h>
     29 
     30 #include <audio_utils/primitives.h>
     31 #include <log/log.h>
     32 
     33 #include "EffectReverb.h"
     34 // from Reverb/lib
     35 #include "LVREV.h"
     36 
     37 // effect_handle_t interface implementation for reverb
     38 extern "C" const struct effect_interface_s gReverbInterface;
     39 
     40 #define LVM_ERROR_CHECK(LvmStatus, callingFunc, calledFunc){\
     41         if ((LvmStatus) == LVREV_NULLADDRESS){\
     42             ALOGV("\tLVREV_ERROR : Parameter error - "\
     43                     "null pointer returned by %s in %s\n\n\n\n", callingFunc, calledFunc);\
     44         }\
     45         if ((LvmStatus) == LVREV_INVALIDNUMSAMPLES){\
     46             ALOGV("\tLVREV_ERROR : Parameter error - "\
     47                     "bad number of samples returned by %s in %s\n\n\n\n", callingFunc, calledFunc);\
     48         }\
     49         if ((LvmStatus) == LVREV_OUTOFRANGE){\
     50             ALOGV("\tLVREV_ERROR : Parameter error - "\
     51                     "out of range returned by %s in %s\n", callingFunc, calledFunc);\
     52         }\
     53     }
     54 
     55 // Namespaces
     56 namespace android {
     57 namespace {
     58 
     59 /************************************************************************************/
     60 /*                                                                                  */
     61 /* Preset definitions                                                               */
     62 /*                                                                                  */
     63 /************************************************************************************/
     64 
     65 const static t_reverb_settings sReverbPresets[] = {
     66         // REVERB_PRESET_NONE: values are unused
     67         {0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
     68         // REVERB_PRESET_SMALLROOM
     69         {-400, -600, 1100, 830, -400, 5, 500, 10, 1000, 1000},
     70         // REVERB_PRESET_MEDIUMROOM
     71         {-400, -600, 1300, 830, -1000, 20, -200, 20, 1000, 1000},
     72         // REVERB_PRESET_LARGEROOM
     73         {-400, -600, 1500, 830, -1600, 5, -1000, 40, 1000, 1000},
     74         // REVERB_PRESET_MEDIUMHALL
     75         {-400, -600, 1800, 700, -1300, 15, -800, 30, 1000, 1000},
     76         // REVERB_PRESET_LARGEHALL
     77         {-400, -600, 1800, 700, -2000, 30, -1400, 60, 1000, 1000},
     78         // REVERB_PRESET_PLATE
     79         {-400, -200, 1300, 900, 0, 2, 0, 10, 1000, 750},
     80 };
     81 
     82 
     83 // NXP SW auxiliary environmental reverb
     84 const effect_descriptor_t gAuxEnvReverbDescriptor = {
     85         { 0xc2e5d5f0, 0x94bd, 0x4763, 0x9cac, { 0x4e, 0x23, 0x4d, 0x06, 0x83, 0x9e } },
     86         { 0x4a387fc0, 0x8ab3, 0x11df, 0x8bad, { 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b } },
     87         EFFECT_CONTROL_API_VERSION,
     88         EFFECT_FLAG_TYPE_AUXILIARY,
     89         LVREV_CUP_LOAD_ARM9E,
     90         LVREV_MEM_USAGE,
     91         "Auxiliary Environmental Reverb",
     92         "NXP Software Ltd.",
     93 };
     94 
     95 // NXP SW insert environmental reverb
     96 static const effect_descriptor_t gInsertEnvReverbDescriptor = {
     97         {0xc2e5d5f0, 0x94bd, 0x4763, 0x9cac, {0x4e, 0x23, 0x4d, 0x06, 0x83, 0x9e}},
     98         {0xc7a511a0, 0xa3bb, 0x11df, 0x860e, {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}},
     99         EFFECT_CONTROL_API_VERSION,
    100         EFFECT_FLAG_TYPE_INSERT | EFFECT_FLAG_INSERT_FIRST | EFFECT_FLAG_VOLUME_CTRL,
    101         LVREV_CUP_LOAD_ARM9E,
    102         LVREV_MEM_USAGE,
    103         "Insert Environmental Reverb",
    104         "NXP Software Ltd.",
    105 };
    106 
    107 // NXP SW auxiliary preset reverb
    108 static const effect_descriptor_t gAuxPresetReverbDescriptor = {
    109         {0x47382d60, 0xddd8, 0x11db, 0xbf3a, {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}},
    110         {0xf29a1400, 0xa3bb, 0x11df, 0x8ddc, {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}},
    111         EFFECT_CONTROL_API_VERSION,
    112         EFFECT_FLAG_TYPE_AUXILIARY,
    113         LVREV_CUP_LOAD_ARM9E,
    114         LVREV_MEM_USAGE,
    115         "Auxiliary Preset Reverb",
    116         "NXP Software Ltd.",
    117 };
    118 
    119 // NXP SW insert preset reverb
    120 static const effect_descriptor_t gInsertPresetReverbDescriptor = {
    121         {0x47382d60, 0xddd8, 0x11db, 0xbf3a, {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}},
    122         {0x172cdf00, 0xa3bc, 0x11df, 0xa72f, {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}},
    123         EFFECT_CONTROL_API_VERSION,
    124         EFFECT_FLAG_TYPE_INSERT | EFFECT_FLAG_INSERT_FIRST | EFFECT_FLAG_VOLUME_CTRL,
    125         LVREV_CUP_LOAD_ARM9E,
    126         LVREV_MEM_USAGE,
    127         "Insert Preset Reverb",
    128         "NXP Software Ltd.",
    129 };
    130 
    131 // gDescriptors contains pointers to all defined effect descriptor in this library
    132 static const effect_descriptor_t * const gDescriptors[] = {
    133         &gAuxEnvReverbDescriptor,
    134         &gInsertEnvReverbDescriptor,
    135         &gAuxPresetReverbDescriptor,
    136         &gInsertPresetReverbDescriptor
    137 };
    138 
    139 #ifdef BUILD_FLOAT
    140 typedef     float               process_buffer_t; // process in float
    141 #else
    142 typedef     int32_t             process_buffer_t; // process in Q4_27
    143 #endif // BUILD_FLOAT
    144 
    145 struct ReverbContext{
    146     const struct effect_interface_s *itfe;
    147     effect_config_t                 config;
    148     LVREV_Handle_t                  hInstance;
    149     int16_t                         SavedRoomLevel;
    150     int16_t                         SavedHfLevel;
    151     int16_t                         SavedDecayTime;
    152     int16_t                         SavedDecayHfRatio;
    153     int16_t                         SavedReverbLevel;
    154     int16_t                         SavedDiffusion;
    155     int16_t                         SavedDensity;
    156     bool                            bEnabled;
    157     #ifdef LVM_PCM
    158     FILE                            *PcmInPtr;
    159     FILE                            *PcmOutPtr;
    160     #endif
    161     LVM_Fs_en                       SampleRate;
    162     process_buffer_t                *InFrames;
    163     process_buffer_t                *OutFrames;
    164     size_t                          bufferSizeIn;
    165     size_t                          bufferSizeOut;
    166     bool                            auxiliary;
    167     bool                            preset;
    168     uint16_t                        curPreset;
    169     uint16_t                        nextPreset;
    170     int                             SamplesToExitCount;
    171     LVM_INT16                       leftVolume;
    172     LVM_INT16                       rightVolume;
    173     LVM_INT16                       prevLeftVolume;
    174     LVM_INT16                       prevRightVolume;
    175     int                             volumeMode;
    176 };
    177 
    178 enum {
    179     REVERB_VOLUME_OFF,
    180     REVERB_VOLUME_FLAT,
    181     REVERB_VOLUME_RAMP,
    182 };
    183 
    184 #define REVERB_DEFAULT_PRESET REVERB_PRESET_NONE
    185 
    186 #ifdef BUILD_FLOAT
    187 #define REVERB_SEND_LEVEL   0.75f // 0.75 in 4.12 format
    188 #else
    189 #define REVERB_SEND_LEVEL   (0x0C00) // 0.75 in 4.12 format
    190 #endif
    191 #define REVERB_UNIT_VOLUME  (0x1000) // 1.0 in 4.12 format
    192 
    193 //--- local function prototypes
    194 int  Reverb_init            (ReverbContext *pContext);
    195 void Reverb_free            (ReverbContext *pContext);
    196 int  Reverb_setConfig       (ReverbContext *pContext, effect_config_t *pConfig);
    197 void Reverb_getConfig       (ReverbContext *pContext, effect_config_t *pConfig);
    198 int  Reverb_setParameter    (ReverbContext *pContext, void *pParam, void *pValue, int vsize);
    199 int  Reverb_getParameter    (ReverbContext *pContext,
    200                              void          *pParam,
    201                              uint32_t      *pValueSize,
    202                              void          *pValue);
    203 int Reverb_LoadPreset       (ReverbContext   *pContext);
    204 int Reverb_paramValueSize   (int32_t param);
    205 
    206 /* Effect Library Interface Implementation */
    207 
    208 extern "C" int EffectCreate(const effect_uuid_t *uuid,
    209                             int32_t             sessionId __unused,
    210                             int32_t             ioId __unused,
    211                             effect_handle_t  *pHandle){
    212     int ret;
    213     int i;
    214     int length = sizeof(gDescriptors) / sizeof(const effect_descriptor_t *);
    215     const effect_descriptor_t *desc;
    216 
    217     ALOGV("\t\nEffectCreate start");
    218 
    219     if (pHandle == NULL || uuid == NULL){
    220         ALOGV("\tLVM_ERROR : EffectCreate() called with NULL pointer");
    221         return -EINVAL;
    222     }
    223 
    224     for (i = 0; i < length; i++) {
    225         desc = gDescriptors[i];
    226         if (memcmp(uuid, &desc->uuid, sizeof(effect_uuid_t))
    227                 == 0) {
    228             ALOGV("\tEffectCreate - UUID matched Reverb type %d, UUID = %x", i, desc->uuid.timeLow);
    229             break;
    230         }
    231     }
    232 
    233     if (i == length) {
    234         return -ENOENT;
    235     }
    236 
    237     ReverbContext *pContext = new ReverbContext;
    238 
    239     pContext->itfe      = &gReverbInterface;
    240     pContext->hInstance = NULL;
    241 
    242     pContext->auxiliary = false;
    243     if ((desc->flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY){
    244         pContext->auxiliary = true;
    245         ALOGV("\tEffectCreate - AUX");
    246     }else{
    247         ALOGV("\tEffectCreate - INS");
    248     }
    249 
    250     pContext->preset = false;
    251     if (memcmp(&desc->type, SL_IID_PRESETREVERB, sizeof(effect_uuid_t)) == 0) {
    252         pContext->preset = true;
    253         // force reloading preset at first call to process()
    254         pContext->curPreset = REVERB_PRESET_LAST + 1;
    255         pContext->nextPreset = REVERB_DEFAULT_PRESET;
    256         ALOGV("\tEffectCreate - PRESET");
    257     }else{
    258         ALOGV("\tEffectCreate - ENVIRONMENTAL");
    259     }
    260 
    261     ALOGV("\tEffectCreate - Calling Reverb_init");
    262     ret = Reverb_init(pContext);
    263 
    264     if (ret < 0){
    265         ALOGV("\tLVM_ERROR : EffectCreate() init failed");
    266         delete pContext;
    267         return ret;
    268     }
    269 
    270     *pHandle = (effect_handle_t)pContext;
    271 
    272 #ifdef LVM_PCM
    273     pContext->PcmInPtr = NULL;
    274     pContext->PcmOutPtr = NULL;
    275 
    276     pContext->PcmInPtr  = fopen("/data/tmp/reverb_pcm_in.pcm", "w");
    277     pContext->PcmOutPtr = fopen("/data/tmp/reverb_pcm_out.pcm", "w");
    278 
    279     if((pContext->PcmInPtr  == NULL)||
    280        (pContext->PcmOutPtr == NULL)){
    281        return -EINVAL;
    282     }
    283 #endif
    284 
    285     int channels = audio_channel_count_from_out_mask(pContext->config.inputCfg.channels);
    286 
    287     // Allocate memory for reverb process (*2 is for STEREO)
    288     pContext->bufferSizeIn = LVREV_MAX_FRAME_SIZE * sizeof(process_buffer_t) * channels;
    289     pContext->bufferSizeOut = LVREV_MAX_FRAME_SIZE * sizeof(process_buffer_t) * FCC_2;
    290     pContext->InFrames  = (process_buffer_t *)calloc(pContext->bufferSizeIn, 1 /* size */);
    291     pContext->OutFrames = (process_buffer_t *)calloc(pContext->bufferSizeOut, 1 /* size */);
    292 
    293     ALOGV("\tEffectCreate %p, size %zu", pContext, sizeof(ReverbContext));
    294     ALOGV("\tEffectCreate end\n");
    295     return 0;
    296 } /* end EffectCreate */
    297 
    298 extern "C" int EffectRelease(effect_handle_t handle){
    299     ReverbContext * pContext = (ReverbContext *)handle;
    300 
    301     ALOGV("\tEffectRelease %p", handle);
    302     if (pContext == NULL){
    303         ALOGV("\tLVM_ERROR : EffectRelease called with NULL pointer");
    304         return -EINVAL;
    305     }
    306 
    307     #ifdef LVM_PCM
    308     fclose(pContext->PcmInPtr);
    309     fclose(pContext->PcmOutPtr);
    310     #endif
    311     free(pContext->InFrames);
    312     free(pContext->OutFrames);
    313     pContext->bufferSizeIn = 0;
    314     pContext->bufferSizeOut = 0;
    315     Reverb_free(pContext);
    316     delete pContext;
    317     return 0;
    318 } /* end EffectRelease */
    319 
    320 extern "C" int EffectGetDescriptor(const effect_uuid_t *uuid,
    321                                    effect_descriptor_t *pDescriptor) {
    322     int i;
    323     int length = sizeof(gDescriptors) / sizeof(const effect_descriptor_t *);
    324 
    325     if (pDescriptor == NULL || uuid == NULL){
    326         ALOGV("EffectGetDescriptor() called with NULL pointer");
    327         return -EINVAL;
    328     }
    329 
    330     for (i = 0; i < length; i++) {
    331         if (memcmp(uuid, &gDescriptors[i]->uuid, sizeof(effect_uuid_t)) == 0) {
    332             *pDescriptor = *gDescriptors[i];
    333             ALOGV("EffectGetDescriptor - UUID matched Reverb type %d, UUID = %x",
    334                  i, gDescriptors[i]->uuid.timeLow);
    335             return 0;
    336         }
    337     }
    338 
    339     return -EINVAL;
    340 } /* end EffectGetDescriptor */
    341 
    342 /* local functions */
    343 #define CHECK_ARG(cond) {                     \
    344     if (!(cond)) {                            \
    345         ALOGV("\tLVM_ERROR : Invalid argument: "#cond);      \
    346         return -EINVAL;                       \
    347     }                                         \
    348 }
    349 
    350 //----------------------------------------------------------------------------
    351 // process()
    352 //----------------------------------------------------------------------------
    353 // Purpose:
    354 // Apply the Reverb
    355 //
    356 // Inputs:
    357 //  pIn:        pointer to stereo/mono float or 16 bit input data
    358 //  pOut:       pointer to stereo float or 16 bit output data
    359 //  frameCount: Frames to process
    360 //  pContext:   effect engine context
    361 //  strength    strength to be applied
    362 //
    363 //  Outputs:
    364 //  pOut:       pointer to updated stereo 16 bit output data
    365 //
    366 //----------------------------------------------------------------------------
    367 int process( effect_buffer_t   *pIn,
    368              effect_buffer_t   *pOut,
    369              int           frameCount,
    370              ReverbContext *pContext){
    371 
    372     int channels = audio_channel_count_from_out_mask(pContext->config.inputCfg.channels);
    373     LVREV_ReturnStatus_en   LvmStatus = LVREV_SUCCESS;              /* Function call status */
    374 
    375     // Check that the input is either mono or stereo
    376     if (!(channels == 1 || channels == FCC_2) ) {
    377         ALOGE("\tLVREV_ERROR : process invalid PCM format");
    378         return -EINVAL;
    379     }
    380 
    381 #ifdef BUILD_FLOAT
    382     size_t inSize = frameCount * sizeof(process_buffer_t) * channels;
    383     size_t outSize = frameCount * sizeof(process_buffer_t) * FCC_2;
    384     if (pContext->InFrames == NULL ||
    385             pContext->bufferSizeIn < inSize) {
    386         free(pContext->InFrames);
    387         pContext->bufferSizeIn = inSize;
    388         pContext->InFrames = (process_buffer_t *)calloc(1, pContext->bufferSizeIn);
    389     }
    390     if (pContext->OutFrames == NULL ||
    391             pContext->bufferSizeOut < outSize) {
    392         free(pContext->OutFrames);
    393         pContext->bufferSizeOut = outSize;
    394         pContext->OutFrames = (process_buffer_t *)calloc(1, pContext->bufferSizeOut);
    395     }
    396 
    397 #ifndef NATIVE_FLOAT_BUFFER
    398     effect_buffer_t * const OutFrames16 = (effect_buffer_t *)pContext->OutFrames;
    399 #endif
    400 #endif
    401 
    402     // Check for NULL pointers
    403     if ((pContext->InFrames == NULL) || (pContext->OutFrames == NULL)) {
    404         ALOGE("\tLVREV_ERROR : process failed to allocate memory for temporary buffers ");
    405         return -EINVAL;
    406     }
    407 
    408 #ifdef LVM_PCM
    409     fwrite(pIn, frameCount * sizeof(*pIn) * channels, 1 /* nmemb */, pContext->PcmInPtr);
    410     fflush(pContext->PcmInPtr);
    411 #endif
    412 
    413     if (pContext->preset && pContext->nextPreset != pContext->curPreset) {
    414         Reverb_LoadPreset(pContext);
    415     }
    416 
    417     if (pContext->auxiliary) {
    418 #ifdef BUILD_FLOAT
    419 #ifdef NATIVE_FLOAT_BUFFER
    420         static_assert(std::is_same<decltype(*pIn), decltype(*pContext->InFrames)>::value,
    421                 "pIn and InFrames must be same type");
    422         memcpy(pContext->InFrames, pIn, frameCount * channels * sizeof(*pIn));
    423 #else
    424         memcpy_to_float_from_i16(
    425                 pContext->InFrames, pIn, frameCount * channels);
    426 #endif
    427 #else //no BUILD_FLOAT
    428         for (int i = 0; i < frameCount * channels; i++) {
    429             pContext->InFrames[i] = (process_buffer_t)pIn[i]<<8;
    430         }
    431 #endif
    432         } else {
    433         // insert reverb input is always stereo
    434         for (int i = 0; i < frameCount; i++) {
    435 #ifdef BUILD_FLOAT
    436 #ifdef NATIVE_FLOAT_BUFFER
    437             pContext->InFrames[2 * i] = (process_buffer_t)pIn[2 * i] * REVERB_SEND_LEVEL;
    438             pContext->InFrames[2 * i + 1] = (process_buffer_t)pIn[2 * i + 1] * REVERB_SEND_LEVEL;
    439 #else
    440             pContext->InFrames[2 * i] =
    441                     (process_buffer_t)pIn[2 * i] * REVERB_SEND_LEVEL / 32768.0f;
    442             pContext->InFrames[2 * i + 1] =
    443                     (process_buffer_t)pIn[2 * i + 1] * REVERB_SEND_LEVEL / 32768.0f;
    444 #endif
    445 #else
    446             pContext->InFrames[2*i] = (pIn[2*i] * REVERB_SEND_LEVEL) >> 4; // <<8 + >>12
    447             pContext->InFrames[2*i+1] = (pIn[2*i+1] * REVERB_SEND_LEVEL) >> 4; // <<8 + >>12
    448 #endif
    449         }
    450     }
    451 
    452     if (pContext->preset && pContext->curPreset == REVERB_PRESET_NONE) {
    453         memset(pContext->OutFrames, 0,
    454                 frameCount * sizeof(*pContext->OutFrames) * FCC_2); //always stereo here
    455     } else {
    456         if(pContext->bEnabled == LVM_FALSE && pContext->SamplesToExitCount > 0) {
    457             memset(pContext->InFrames, 0,
    458                     frameCount * sizeof(*pContext->OutFrames) * channels);
    459             ALOGV("\tZeroing %d samples per frame at the end of call", channels);
    460         }
    461 
    462         /* Process the samples, producing a stereo output */
    463         LvmStatus = LVREV_Process(pContext->hInstance,      /* Instance handle */
    464                                   pContext->InFrames,     /* Input buffer */
    465                                   pContext->OutFrames,    /* Output buffer */
    466                                   frameCount);              /* Number of samples to read */
    467     }
    468 
    469     LVM_ERROR_CHECK(LvmStatus, "LVREV_Process", "process")
    470     if(LvmStatus != LVREV_SUCCESS) return -EINVAL;
    471 
    472     // Convert to 16 bits
    473     if (pContext->auxiliary) {
    474 #ifdef BUILD_FLOAT
    475         // nothing to do here
    476 #ifndef NATIVE_FLOAT_BUFFER
    477         // pContext->OutFrames and OutFrames16 point to the same buffer
    478         // make sure the float to int conversion happens in the right order.
    479         memcpy_to_i16_from_float(OutFrames16, pContext->OutFrames,
    480                 (size_t)frameCount * FCC_2);
    481 #endif
    482 #else
    483         memcpy_to_i16_from_q4_27(OutFrames16, pContext->OutFrames, (size_t)frameCount * FCC_2);
    484 #endif
    485     } else {
    486 #ifdef BUILD_FLOAT
    487 #ifdef NATIVE_FLOAT_BUFFER
    488         for (int i = 0; i < frameCount * FCC_2; i++) { // always stereo here
    489             // Mix with dry input
    490             pContext->OutFrames[i] += pIn[i];
    491         }
    492 #else
    493         for (int i = 0; i < frameCount * FCC_2; i++) { // always stereo here
    494             // pOutputBuff and OutFrames16 point to the same buffer
    495             // make sure the float to int conversion happens in the right order.
    496             pContext->OutFrames[i] += (process_buffer_t)pIn[i] / 32768.0f;
    497         }
    498         memcpy_to_i16_from_float(OutFrames16, pContext->OutFrames,
    499                 (size_t)frameCount * FCC_2);
    500 #endif
    501 #else
    502         for (int i=0; i < frameCount * FCC_2; i++) { // always stereo here
    503             OutFrames16[i] = clamp16((pContext->OutFrames[i]>>8) + (process_buffer_t)pIn[i]);
    504         }
    505 #endif
    506         // apply volume with ramp if needed
    507         if ((pContext->leftVolume != pContext->prevLeftVolume ||
    508                 pContext->rightVolume != pContext->prevRightVolume) &&
    509                 pContext->volumeMode == REVERB_VOLUME_RAMP) {
    510 #if defined (BUILD_FLOAT) && defined (NATIVE_FLOAT_BUFFER)
    511             // FIXME: still using int16 volumes.
    512             // For reference: REVERB_UNIT_VOLUME  (0x1000) // 1.0 in 4.12 format
    513             float vl = (float)pContext->prevLeftVolume / 4096;
    514             float incl = (((float)pContext->leftVolume / 4096) - vl) / frameCount;
    515             float vr = (float)pContext->prevRightVolume / 4096;
    516             float incr = (((float)pContext->rightVolume / 4096) - vr) / frameCount;
    517 
    518             for (int i = 0; i < frameCount; i++) {
    519                 pContext->OutFrames[FCC_2 * i] *= vl;
    520                 pContext->OutFrames[FCC_2 * i + 1] *= vr;
    521 
    522                 vl += incl;
    523                 vr += incr;
    524             }
    525 #else
    526             LVM_INT32 vl = (LVM_INT32)pContext->prevLeftVolume << 16;
    527             LVM_INT32 incl = (((LVM_INT32)pContext->leftVolume << 16) - vl) / frameCount;
    528             LVM_INT32 vr = (LVM_INT32)pContext->prevRightVolume << 16;
    529             LVM_INT32 incr = (((LVM_INT32)pContext->rightVolume << 16) - vr) / frameCount;
    530 
    531             for (int i = 0; i < frameCount; i++) {
    532                 OutFrames16[FCC_2 * i] =
    533                         clamp16((LVM_INT32)((vl >> 16) * OutFrames16[2*i]) >> 12);
    534                 OutFrames16[FCC_2 * i + 1] =
    535                         clamp16((LVM_INT32)((vr >> 16) * OutFrames16[2*i+1]) >> 12);
    536 
    537                 vl += incl;
    538                 vr += incr;
    539             }
    540 #endif
    541             pContext->prevLeftVolume = pContext->leftVolume;
    542             pContext->prevRightVolume = pContext->rightVolume;
    543         } else if (pContext->volumeMode != REVERB_VOLUME_OFF) {
    544             if (pContext->leftVolume != REVERB_UNIT_VOLUME ||
    545                 pContext->rightVolume != REVERB_UNIT_VOLUME) {
    546                 for (int i = 0; i < frameCount; i++) {
    547 #if defined(BUILD_FLOAT) && defined(NATIVE_FLOAT_BUFFER)
    548                     pContext->OutFrames[FCC_2 * i] *= ((float)pContext->leftVolume / 4096);
    549                     pContext->OutFrames[FCC_2 * i + 1] *= ((float)pContext->rightVolume / 4096);
    550 #else
    551                     OutFrames16[FCC_2 * i] =
    552                             clamp16((LVM_INT32)(pContext->leftVolume * OutFrames16[2*i]) >> 12);
    553                     OutFrames16[FCC_2 * i + 1] =
    554                             clamp16((LVM_INT32)(pContext->rightVolume * OutFrames16[2*i+1]) >> 12);
    555 #endif
    556                 }
    557             }
    558             pContext->prevLeftVolume = pContext->leftVolume;
    559             pContext->prevRightVolume = pContext->rightVolume;
    560             pContext->volumeMode = REVERB_VOLUME_RAMP;
    561         }
    562     }
    563 
    564 #ifdef LVM_PCM
    565     fwrite(pContext->OutFrames, frameCount * sizeof(*pContext->OutFrames) * FCC_2,
    566             1 /* nmemb */, pContext->PcmOutPtr);
    567     fflush(pContext->PcmOutPtr);
    568 #endif
    569 
    570     // Accumulate if required
    571     if (pContext->config.outputCfg.accessMode == EFFECT_BUFFER_ACCESS_ACCUMULATE){
    572         //ALOGV("\tBuffer access is ACCUMULATE");
    573         for (int i = 0; i < frameCount * FCC_2; i++) { // always stereo here
    574 #ifndef NATIVE_FLOAT_BUFFER
    575             pOut[i] = clamp16((int32_t)pOut[i] + (int32_t)OutFrames16[i]);
    576 #else
    577             pOut[i] += pContext->OutFrames[i];
    578 #endif
    579         }
    580     }else{
    581         //ALOGV("\tBuffer access is WRITE");
    582         memcpy(pOut, pContext->OutFrames, frameCount * sizeof(*pOut) * FCC_2);
    583     }
    584 
    585     return 0;
    586 }    /* end process */
    587 
    588 //----------------------------------------------------------------------------
    589 // Reverb_free()
    590 //----------------------------------------------------------------------------
    591 // Purpose: Free all memory associated with the Bundle.
    592 //
    593 // Inputs:
    594 //  pContext:   effect engine context
    595 //
    596 // Outputs:
    597 //
    598 //----------------------------------------------------------------------------
    599 
    600 void Reverb_free(ReverbContext *pContext){
    601 
    602     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;         /* Function call status */
    603     LVREV_MemoryTable_st      MemTab;
    604 
    605     /* Free the algorithm memory */
    606     LvmStatus = LVREV_GetMemoryTable(pContext->hInstance,
    607                                    &MemTab,
    608                                    LVM_NULL);
    609 
    610     LVM_ERROR_CHECK(LvmStatus, "LVM_GetMemoryTable", "Reverb_free")
    611 
    612     for (int i=0; i<LVM_NR_MEMORY_REGIONS; i++){
    613         if (MemTab.Region[i].Size != 0){
    614             if (MemTab.Region[i].pBaseAddress != NULL){
    615                 free(MemTab.Region[i].pBaseAddress);
    616             }else{
    617                 ALOGV("\tLVM_ERROR : free() - trying to free with NULL pointer %" PRIu32 " bytes "
    618                         "for region %u at %p ERROR\n",
    619                         MemTab.Region[i].Size, i, MemTab.Region[i].pBaseAddress);
    620             }
    621         }
    622     }
    623 }    /* end Reverb_free */
    624 
    625 //----------------------------------------------------------------------------
    626 // Reverb_setConfig()
    627 //----------------------------------------------------------------------------
    628 // Purpose: Set input and output audio configuration.
    629 //
    630 // Inputs:
    631 //  pContext:   effect engine context
    632 //  pConfig:    pointer to effect_config_t structure holding input and output
    633 //      configuration parameters
    634 //
    635 // Outputs:
    636 //
    637 //----------------------------------------------------------------------------
    638 
    639 int Reverb_setConfig(ReverbContext *pContext, effect_config_t *pConfig){
    640     LVM_Fs_en   SampleRate;
    641     //ALOGV("\tReverb_setConfig start");
    642 
    643     CHECK_ARG(pContext != NULL);
    644     CHECK_ARG(pConfig != NULL);
    645 
    646     CHECK_ARG(pConfig->inputCfg.samplingRate == pConfig->outputCfg.samplingRate);
    647     CHECK_ARG(pConfig->inputCfg.format == pConfig->outputCfg.format);
    648     CHECK_ARG((pContext->auxiliary && pConfig->inputCfg.channels == AUDIO_CHANNEL_OUT_MONO) ||
    649               ((!pContext->auxiliary) && pConfig->inputCfg.channels == AUDIO_CHANNEL_OUT_STEREO));
    650     CHECK_ARG(pConfig->outputCfg.channels == AUDIO_CHANNEL_OUT_STEREO);
    651     CHECK_ARG(pConfig->outputCfg.accessMode == EFFECT_BUFFER_ACCESS_WRITE
    652               || pConfig->outputCfg.accessMode == EFFECT_BUFFER_ACCESS_ACCUMULATE);
    653     CHECK_ARG(pConfig->inputCfg.format == EFFECT_BUFFER_FORMAT);
    654     //ALOGV("\tReverb_setConfig calling memcpy");
    655     pContext->config = *pConfig;
    656 
    657 
    658     switch (pConfig->inputCfg.samplingRate) {
    659     case 8000:
    660         SampleRate = LVM_FS_8000;
    661         break;
    662     case 16000:
    663         SampleRate = LVM_FS_16000;
    664         break;
    665     case 22050:
    666         SampleRate = LVM_FS_22050;
    667         break;
    668     case 32000:
    669         SampleRate = LVM_FS_32000;
    670         break;
    671     case 44100:
    672         SampleRate = LVM_FS_44100;
    673         break;
    674     case 48000:
    675         SampleRate = LVM_FS_48000;
    676         break;
    677 #if defined(BUILD_FLOAT) && defined(HIGHER_FS)
    678     case 88200:
    679         SampleRate = LVM_FS_88200;
    680         break;
    681     case 96000:
    682         SampleRate = LVM_FS_96000;
    683         break;
    684     case 176400:
    685         SampleRate = LVM_FS_176400;
    686         break;
    687     case 192000:
    688         SampleRate = LVM_FS_192000;
    689         break;
    690 #endif
    691     default:
    692         ALOGV("\rReverb_setConfig invalid sampling rate %d", pConfig->inputCfg.samplingRate);
    693         return -EINVAL;
    694     }
    695 
    696     if (pContext->SampleRate != SampleRate) {
    697 
    698         LVREV_ControlParams_st    ActiveParams;
    699         LVREV_ReturnStatus_en     LvmStatus = LVREV_SUCCESS;
    700 
    701         //ALOGV("\tReverb_setConfig change sampling rate to %d", SampleRate);
    702 
    703         /* Get the current settings */
    704         LvmStatus = LVREV_GetControlParameters(pContext->hInstance,
    705                                          &ActiveParams);
    706 
    707         LVM_ERROR_CHECK(LvmStatus, "LVREV_GetControlParameters", "Reverb_setConfig")
    708         if(LvmStatus != LVREV_SUCCESS) return -EINVAL;
    709 
    710         ActiveParams.SampleRate = SampleRate;
    711 
    712         LvmStatus = LVREV_SetControlParameters(pContext->hInstance, &ActiveParams);
    713 
    714         LVM_ERROR_CHECK(LvmStatus, "LVREV_SetControlParameters", "Reverb_setConfig")
    715         if(LvmStatus != LVREV_SUCCESS) return -EINVAL;
    716         //ALOGV("\tReverb_setConfig Succesfully called LVREV_SetControlParameters\n");
    717         pContext->SampleRate = SampleRate;
    718     }else{
    719         //ALOGV("\tReverb_setConfig keep sampling rate at %d", SampleRate);
    720     }
    721 
    722     //ALOGV("\tReverb_setConfig End");
    723     return 0;
    724 }   /* end Reverb_setConfig */
    725 
    726 //----------------------------------------------------------------------------
    727 // Reverb_getConfig()
    728 //----------------------------------------------------------------------------
    729 // Purpose: Get input and output audio configuration.
    730 //
    731 // Inputs:
    732 //  pContext:   effect engine context
    733 //  pConfig:    pointer to effect_config_t structure holding input and output
    734 //      configuration parameters
    735 //
    736 // Outputs:
    737 //
    738 //----------------------------------------------------------------------------
    739 
    740 void Reverb_getConfig(ReverbContext *pContext, effect_config_t *pConfig)
    741 {
    742     *pConfig = pContext->config;
    743 }   /* end Reverb_getConfig */
    744 
    745 //----------------------------------------------------------------------------
    746 // Reverb_init()
    747 //----------------------------------------------------------------------------
    748 // Purpose: Initialize engine with default configuration
    749 //
    750 // Inputs:
    751 //  pContext:   effect engine context
    752 //
    753 // Outputs:
    754 //
    755 //----------------------------------------------------------------------------
    756 
    757 int Reverb_init(ReverbContext *pContext){
    758     ALOGV("\tReverb_init start");
    759 
    760     CHECK_ARG(pContext != NULL);
    761 
    762     if (pContext->hInstance != NULL){
    763         Reverb_free(pContext);
    764     }
    765 
    766     pContext->config.inputCfg.accessMode                    = EFFECT_BUFFER_ACCESS_READ;
    767     if (pContext->auxiliary) {
    768         pContext->config.inputCfg.channels                  = AUDIO_CHANNEL_OUT_MONO;
    769     } else {
    770         pContext->config.inputCfg.channels                  = AUDIO_CHANNEL_OUT_STEREO;
    771     }
    772     pContext->config.inputCfg.format                        = EFFECT_BUFFER_FORMAT;
    773     pContext->config.inputCfg.samplingRate                  = 44100;
    774     pContext->config.inputCfg.bufferProvider.getBuffer      = NULL;
    775     pContext->config.inputCfg.bufferProvider.releaseBuffer  = NULL;
    776     pContext->config.inputCfg.bufferProvider.cookie         = NULL;
    777     pContext->config.inputCfg.mask                          = EFFECT_CONFIG_ALL;
    778     pContext->config.outputCfg.accessMode                   = EFFECT_BUFFER_ACCESS_ACCUMULATE;
    779     pContext->config.outputCfg.channels                     = AUDIO_CHANNEL_OUT_STEREO;
    780     pContext->config.outputCfg.format                       = EFFECT_BUFFER_FORMAT;
    781     pContext->config.outputCfg.samplingRate                 = 44100;
    782     pContext->config.outputCfg.bufferProvider.getBuffer     = NULL;
    783     pContext->config.outputCfg.bufferProvider.releaseBuffer = NULL;
    784     pContext->config.outputCfg.bufferProvider.cookie        = NULL;
    785     pContext->config.outputCfg.mask                         = EFFECT_CONFIG_ALL;
    786 
    787     pContext->leftVolume = REVERB_UNIT_VOLUME;
    788     pContext->rightVolume = REVERB_UNIT_VOLUME;
    789     pContext->prevLeftVolume = REVERB_UNIT_VOLUME;
    790     pContext->prevRightVolume = REVERB_UNIT_VOLUME;
    791     pContext->volumeMode = REVERB_VOLUME_FLAT;
    792 
    793     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;        /* Function call status */
    794     LVREV_ControlParams_st    params;                         /* Control Parameters */
    795     LVREV_InstanceParams_st   InstParams;                     /* Instance parameters */
    796     LVREV_MemoryTable_st      MemTab;                         /* Memory allocation table */
    797     bool                      bMallocFailure = LVM_FALSE;
    798 
    799     /* Set the capabilities */
    800     InstParams.MaxBlockSize  = MAX_CALL_SIZE;
    801     InstParams.SourceFormat  = LVM_STEREO;          // Max format, could be mono during process
    802     InstParams.NumDelays     = LVREV_DELAYLINES_4;
    803 
    804     /* Allocate memory, forcing alignment */
    805     LvmStatus = LVREV_GetMemoryTable(LVM_NULL,
    806                                   &MemTab,
    807                                   &InstParams);
    808 
    809     LVM_ERROR_CHECK(LvmStatus, "LVREV_GetMemoryTable", "Reverb_init")
    810     if(LvmStatus != LVREV_SUCCESS) return -EINVAL;
    811 
    812     ALOGV("\tCreateInstance Succesfully called LVM_GetMemoryTable\n");
    813 
    814     /* Allocate memory */
    815     for (int i=0; i<LVM_NR_MEMORY_REGIONS; i++){
    816         if (MemTab.Region[i].Size != 0){
    817             MemTab.Region[i].pBaseAddress = malloc(MemTab.Region[i].Size);
    818 
    819             if (MemTab.Region[i].pBaseAddress == LVM_NULL){
    820                 ALOGV("\tLVREV_ERROR :Reverb_init CreateInstance Failed to allocate %" PRIu32
    821                         " bytes for region %u\n", MemTab.Region[i].Size, i );
    822                 bMallocFailure = LVM_TRUE;
    823             }else{
    824                 ALOGV("\tReverb_init CreateInstance allocate %" PRIu32
    825                         " bytes for region %u at %p\n",
    826                         MemTab.Region[i].Size, i, MemTab.Region[i].pBaseAddress);
    827             }
    828         }
    829     }
    830 
    831     /* If one or more of the memory regions failed to allocate, free the regions that were
    832      * succesfully allocated and return with an error
    833      */
    834     if(bMallocFailure == LVM_TRUE){
    835         for (int i=0; i<LVM_NR_MEMORY_REGIONS; i++){
    836             if (MemTab.Region[i].pBaseAddress == LVM_NULL){
    837                 ALOGV("\tLVM_ERROR :Reverb_init CreateInstance Failed to allocate %" PRIu32
    838                         " bytes for region %u - Not freeing\n", MemTab.Region[i].Size, i );
    839             }else{
    840                 ALOGV("\tLVM_ERROR :Reverb_init CreateInstance Failed: but allocated %" PRIu32
    841                         " bytes for region %u at %p- free\n",
    842                         MemTab.Region[i].Size, i, MemTab.Region[i].pBaseAddress);
    843                 free(MemTab.Region[i].pBaseAddress);
    844             }
    845         }
    846         return -EINVAL;
    847     }
    848     ALOGV("\tReverb_init CreateInstance Succesfully malloc'd memory\n");
    849 
    850     /* Initialise */
    851     pContext->hInstance = LVM_NULL;
    852 
    853     /* Init sets the instance handle */
    854     LvmStatus = LVREV_GetInstanceHandle(&pContext->hInstance,
    855                                         &MemTab,
    856                                         &InstParams);
    857 
    858     LVM_ERROR_CHECK(LvmStatus, "LVM_GetInstanceHandle", "Reverb_init")
    859     if(LvmStatus != LVREV_SUCCESS) return -EINVAL;
    860 
    861     ALOGV("\tReverb_init CreateInstance Succesfully called LVM_GetInstanceHandle\n");
    862 
    863     /* Set the initial process parameters */
    864     /* General parameters */
    865     params.OperatingMode  = LVM_MODE_ON;
    866     params.SampleRate     = LVM_FS_44100;
    867     pContext->SampleRate  = LVM_FS_44100;
    868 
    869     if(pContext->config.inputCfg.channels == AUDIO_CHANNEL_OUT_MONO){
    870         params.SourceFormat   = LVM_MONO;
    871     } else {
    872         params.SourceFormat   = LVM_STEREO;
    873     }
    874 
    875     /* Reverb parameters */
    876     params.Level          = 0;
    877     params.LPF            = 23999;
    878     params.HPF            = 50;
    879     params.T60            = 1490;
    880     params.Density        = 100;
    881     params.Damping        = 21;
    882     params.RoomSize       = 100;
    883 
    884     pContext->SamplesToExitCount = (params.T60 * pContext->config.inputCfg.samplingRate)/1000;
    885 
    886     /* Saved strength is used to return the exact strength that was used in the set to the get
    887      * because we map the original strength range of 0:1000 to 1:15, and this will avoid
    888      * quantisation like effect when returning
    889      */
    890     pContext->SavedRoomLevel    = -6000;
    891     pContext->SavedHfLevel      = 0;
    892     pContext->bEnabled          = LVM_FALSE;
    893     pContext->SavedDecayTime    = params.T60;
    894     pContext->SavedDecayHfRatio = params.Damping*20;
    895     pContext->SavedDensity      = params.RoomSize*10;
    896     pContext->SavedDiffusion    = params.Density*10;
    897     pContext->SavedReverbLevel  = -6000;
    898 
    899     /* Activate the initial settings */
    900     LvmStatus = LVREV_SetControlParameters(pContext->hInstance,
    901                                          &params);
    902 
    903     LVM_ERROR_CHECK(LvmStatus, "LVREV_SetControlParameters", "Reverb_init")
    904     if(LvmStatus != LVREV_SUCCESS) return -EINVAL;
    905 
    906     ALOGV("\tReverb_init CreateInstance Succesfully called LVREV_SetControlParameters\n");
    907     ALOGV("\tReverb_init End");
    908     return 0;
    909 }   /* end Reverb_init */
    910 
    911 //----------------------------------------------------------------------------
    912 // ReverbConvertLevel()
    913 //----------------------------------------------------------------------------
    914 // Purpose:
    915 // Convert level from OpenSL ES format to LVM format
    916 //
    917 // Inputs:
    918 //  level       level to be applied
    919 //
    920 //----------------------------------------------------------------------------
    921 
    922 int16_t ReverbConvertLevel(int16_t level){
    923     static int16_t LevelArray[101] =
    924     {
    925        -12000, -4000,  -3398,  -3046,  -2796,  -2603,  -2444,  -2310,  -2194,  -2092,
    926        -2000,  -1918,  -1842,  -1773,  -1708,  -1648,  -1592,  -1540,  -1490,  -1443,
    927        -1398,  -1356,  -1316,  -1277,  -1240,  -1205,  -1171,  -1138,  -1106,  -1076,
    928        -1046,  -1018,  -990,   -963,   -938,   -912,   -888,   -864,   -841,   -818,
    929        -796,   -775,   -754,   -734,   -714,   -694,   -675,   -656,   -638,   -620,
    930        -603,   -585,   -568,   -552,   -536,   -520,   -504,   -489,   -474,   -459,
    931        -444,   -430,   -416,   -402,   -388,   -375,   -361,   -348,   -335,   -323,
    932        -310,   -298,   -286,   -274,   -262,   -250,   -239,   -228,   -216,   -205,
    933        -194,   -184,   -173,   -162,   -152,   -142,   -132,   -121,   -112,   -102,
    934        -92,    -82,    -73,    -64,    -54,    -45,    -36,    -27,    -18,    -9,
    935        0
    936     };
    937     int16_t i;
    938 
    939     for(i = 0; i < 101; i++)
    940     {
    941        if(level <= LevelArray[i])
    942            break;
    943     }
    944     return i;
    945 }
    946 
    947 //----------------------------------------------------------------------------
    948 // ReverbConvertHFLevel()
    949 //----------------------------------------------------------------------------
    950 // Purpose:
    951 // Convert level from OpenSL ES format to LVM format
    952 //
    953 // Inputs:
    954 //  level       level to be applied
    955 //
    956 //----------------------------------------------------------------------------
    957 
    958 int16_t ReverbConvertHfLevel(int16_t Hflevel){
    959     int16_t i;
    960 
    961     static LPFPair_t LPFArray[97] =
    962     {   // Limit range to 50 for LVREV parameter range
    963         {-10000, 50}, { -5000, 50 }, { -4000, 50},  { -3000, 158}, { -2000, 502},
    964         {-1000, 1666},{ -900, 1897}, { -800, 2169}, { -700, 2496}, { -600, 2895},
    965         {-500, 3400}, { -400, 4066}, { -300, 5011}, { -200, 6537}, { -100,  9826},
    966         {-99, 9881 }, { -98, 9937 }, { -97, 9994 }, { -96, 10052}, { -95, 10111},
    967         {-94, 10171}, { -93, 10231}, { -92, 10293}, { -91, 10356}, { -90, 10419},
    968         {-89, 10484}, { -88, 10549}, { -87, 10616}, { -86, 10684}, { -85, 10753},
    969         {-84, 10823}, { -83, 10895}, { -82, 10968}, { -81, 11042}, { -80, 11117},
    970         {-79, 11194}, { -78, 11272}, { -77, 11352}, { -76, 11433}, { -75, 11516},
    971         {-74, 11600}, { -73, 11686}, { -72, 11774}, { -71, 11864}, { -70, 11955},
    972         {-69, 12049}, { -68, 12144}, { -67, 12242}, { -66, 12341}, { -65, 12443},
    973         {-64, 12548}, { -63, 12654}, { -62, 12763}, { -61, 12875}, { -60, 12990},
    974         {-59, 13107}, { -58, 13227}, { -57, 13351}, { -56, 13477}, { -55, 13607},
    975         {-54, 13741}, { -53, 13878}, { -52, 14019}, { -51, 14164}, { -50, 14313},
    976         {-49, 14467}, { -48, 14626}, { -47, 14789}, { -46, 14958}, { -45, 15132},
    977         {-44, 15312}, { -43, 15498}, { -42, 15691}, { -41, 15890}, { -40, 16097},
    978         {-39, 16311}, { -38, 16534}, { -37, 16766}, { -36, 17007}, { -35, 17259},
    979         {-34, 17521}, { -33, 17795}, { -32, 18081}, { -31, 18381}, { -30, 18696},
    980         {-29, 19027}, { -28, 19375}, { -27, 19742}, { -26, 20129}, { -25, 20540},
    981         {-24, 20976}, { -23, 21439}, { -22, 21934}, { -21, 22463}, { -20, 23031},
    982         {-19, 23643}, { -18, 23999}
    983     };
    984 
    985     for(i = 0; i < 96; i++)
    986     {
    987         if(Hflevel <= LPFArray[i].Room_HF)
    988             break;
    989     }
    990     return LPFArray[i].LPF;
    991 }
    992 
    993 //----------------------------------------------------------------------------
    994 // ReverbSetRoomHfLevel()
    995 //----------------------------------------------------------------------------
    996 // Purpose:
    997 // Apply the HF level to the Reverb. Must first be converted to LVM format
    998 //
    999 // Inputs:
   1000 //  pContext:   effect engine context
   1001 //  level       level to be applied
   1002 //
   1003 //----------------------------------------------------------------------------
   1004 
   1005 void ReverbSetRoomHfLevel(ReverbContext *pContext, int16_t level){
   1006     //ALOGV("\tReverbSetRoomHfLevel start (%d)", level);
   1007 
   1008     LVREV_ControlParams_st    ActiveParams;              /* Current control Parameters */
   1009     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;     /* Function call status */
   1010 
   1011     /* Get the current settings */
   1012     LvmStatus = LVREV_GetControlParameters(pContext->hInstance, &ActiveParams);
   1013     LVM_ERROR_CHECK(LvmStatus, "LVREV_GetControlParameters", "ReverbSetRoomHfLevel")
   1014     //ALOGV("\tReverbSetRoomHfLevel Succesfully returned from LVM_GetControlParameters\n");
   1015     //ALOGV("\tReverbSetRoomHfLevel() just Got -> %d\n", ActiveParams.LPF);
   1016 
   1017     ActiveParams.LPF = ReverbConvertHfLevel(level);
   1018 
   1019     /* Activate the initial settings */
   1020     LvmStatus = LVREV_SetControlParameters(pContext->hInstance, &ActiveParams);
   1021     LVM_ERROR_CHECK(LvmStatus, "LVREV_SetControlParameters", "ReverbSetRoomHfLevel")
   1022     //ALOGV("\tReverbSetRoomhfLevel() just Set -> %d\n", ActiveParams.LPF);
   1023     pContext->SavedHfLevel = level;
   1024     //ALOGV("\tReverbSetHfRoomLevel end.. saving %d", pContext->SavedHfLevel);
   1025     return;
   1026 }
   1027 
   1028 //----------------------------------------------------------------------------
   1029 // ReverbGetRoomHfLevel()
   1030 //----------------------------------------------------------------------------
   1031 // Purpose:
   1032 // Get the level applied to the Revervb. Must first be converted to LVM format
   1033 //
   1034 // Inputs:
   1035 //  pContext:   effect engine context
   1036 //
   1037 //----------------------------------------------------------------------------
   1038 
   1039 int16_t ReverbGetRoomHfLevel(ReverbContext *pContext){
   1040     int16_t level;
   1041     //ALOGV("\tReverbGetRoomHfLevel start, saved level is %d", pContext->SavedHfLevel);
   1042 
   1043     LVREV_ControlParams_st    ActiveParams;              /* Current control Parameters */
   1044     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;     /* Function call status */
   1045 
   1046     /* Get the current settings */
   1047     LvmStatus = LVREV_GetControlParameters(pContext->hInstance, &ActiveParams);
   1048     LVM_ERROR_CHECK(LvmStatus, "LVREV_GetControlParameters", "ReverbGetRoomHfLevel")
   1049     //ALOGV("\tReverbGetRoomHfLevel Succesfully returned from LVM_GetControlParameters\n");
   1050     //ALOGV("\tReverbGetRoomHfLevel() just Got -> %d\n", ActiveParams.LPF);
   1051 
   1052     level = ReverbConvertHfLevel(pContext->SavedHfLevel);
   1053 
   1054     //ALOGV("\tReverbGetRoomHfLevel() ActiveParams.LPFL %d, pContext->SavedHfLevel: %d, "
   1055     //     "converted level: %d\n", ActiveParams.LPF, pContext->SavedHfLevel, level);
   1056 
   1057     if((int16_t)ActiveParams.LPF != level){
   1058         ALOGV("\tLVM_ERROR : (ignore at start up) ReverbGetRoomHfLevel() has wrong level -> %d %d\n",
   1059                ActiveParams.Level, level);
   1060     }
   1061 
   1062     //ALOGV("\tReverbGetRoomHfLevel end");
   1063     return pContext->SavedHfLevel;
   1064 }
   1065 
   1066 //----------------------------------------------------------------------------
   1067 // ReverbSetReverbLevel()
   1068 //----------------------------------------------------------------------------
   1069 // Purpose:
   1070 // Apply the level to the Reverb. Must first be converted to LVM format
   1071 //
   1072 // Inputs:
   1073 //  pContext:   effect engine context
   1074 //  level       level to be applied
   1075 //
   1076 //----------------------------------------------------------------------------
   1077 
   1078 void ReverbSetReverbLevel(ReverbContext *pContext, int16_t level){
   1079     //ALOGV("\n\tReverbSetReverbLevel start (%d)", level);
   1080 
   1081     LVREV_ControlParams_st    ActiveParams;              /* Current control Parameters */
   1082     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;     /* Function call status */
   1083     LVM_INT32                 CombinedLevel;             // Sum of room and reverb level controls
   1084 
   1085     /* Get the current settings */
   1086     LvmStatus = LVREV_GetControlParameters(pContext->hInstance, &ActiveParams);
   1087     LVM_ERROR_CHECK(LvmStatus, "LVREV_GetControlParameters", "ReverbSetReverbLevel")
   1088     //ALOGV("\tReverbSetReverbLevel Succesfully returned from LVM_GetControlParameters\n");
   1089     //ALOGV("\tReverbSetReverbLevel just Got -> %d\n", ActiveParams.Level);
   1090 
   1091     // needs to subtract max levels for both RoomLevel and ReverbLevel
   1092     CombinedLevel = (level + pContext->SavedRoomLevel)-LVREV_MAX_REVERB_LEVEL;
   1093     //ALOGV("\tReverbSetReverbLevel() CombinedLevel is %d = %d + %d\n",
   1094     //      CombinedLevel, level, pContext->SavedRoomLevel);
   1095 
   1096     ActiveParams.Level = ReverbConvertLevel(CombinedLevel);
   1097 
   1098     //ALOGV("\tReverbSetReverbLevel() Trying to set -> %d\n", ActiveParams.Level);
   1099 
   1100     /* Activate the initial settings */
   1101     LvmStatus = LVREV_SetControlParameters(pContext->hInstance, &ActiveParams);
   1102     LVM_ERROR_CHECK(LvmStatus, "LVREV_SetControlParameters", "ReverbSetReverbLevel")
   1103     //ALOGV("\tReverbSetReverbLevel() just Set -> %d\n", ActiveParams.Level);
   1104 
   1105     pContext->SavedReverbLevel = level;
   1106     //ALOGV("\tReverbSetReverbLevel end pContext->SavedReverbLevel is %d\n\n",
   1107     //     pContext->SavedReverbLevel);
   1108     return;
   1109 }
   1110 
   1111 //----------------------------------------------------------------------------
   1112 // ReverbGetReverbLevel()
   1113 //----------------------------------------------------------------------------
   1114 // Purpose:
   1115 // Get the level applied to the Revervb. Must first be converted to LVM format
   1116 //
   1117 // Inputs:
   1118 //  pContext:   effect engine context
   1119 //
   1120 //----------------------------------------------------------------------------
   1121 
   1122 int16_t ReverbGetReverbLevel(ReverbContext *pContext){
   1123     int16_t level;
   1124     //ALOGV("\tReverbGetReverbLevel start");
   1125 
   1126     LVREV_ControlParams_st    ActiveParams;              /* Current control Parameters */
   1127     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;     /* Function call status */
   1128     LVM_INT32                 CombinedLevel;             // Sum of room and reverb level controls
   1129 
   1130     /* Get the current settings */
   1131     LvmStatus = LVREV_GetControlParameters(pContext->hInstance, &ActiveParams);
   1132     LVM_ERROR_CHECK(LvmStatus, "LVREV_GetControlParameters", "ReverbGetReverbLevel")
   1133     //ALOGV("\tReverbGetReverbLevel Succesfully returned from LVM_GetControlParameters\n");
   1134     //ALOGV("\tReverbGetReverbLevel() just Got -> %d\n", ActiveParams.Level);
   1135 
   1136     // needs to subtract max levels for both RoomLevel and ReverbLevel
   1137     CombinedLevel = (pContext->SavedReverbLevel + pContext->SavedRoomLevel)-LVREV_MAX_REVERB_LEVEL;
   1138 
   1139     //ALOGV("\tReverbGetReverbLevel() CombinedLevel is %d = %d + %d\n",
   1140     //CombinedLevel, pContext->SavedReverbLevel, pContext->SavedRoomLevel);
   1141     level = ReverbConvertLevel(CombinedLevel);
   1142 
   1143     //ALOGV("\tReverbGetReverbLevel(): ActiveParams.Level: %d, pContext->SavedReverbLevel: %d, "
   1144     //"pContext->SavedRoomLevel: %d, CombinedLevel: %d, converted level: %d\n",
   1145     //ActiveParams.Level, pContext->SavedReverbLevel,pContext->SavedRoomLevel, CombinedLevel,level);
   1146 
   1147     if(ActiveParams.Level != level){
   1148         ALOGV("\tLVM_ERROR : (ignore at start up) ReverbGetReverbLevel() has wrong level -> %d %d\n",
   1149                 ActiveParams.Level, level);
   1150     }
   1151 
   1152     //ALOGV("\tReverbGetReverbLevel end\n");
   1153 
   1154     return pContext->SavedReverbLevel;
   1155 }
   1156 
   1157 //----------------------------------------------------------------------------
   1158 // ReverbSetRoomLevel()
   1159 //----------------------------------------------------------------------------
   1160 // Purpose:
   1161 // Apply the level to the Reverb. Must first be converted to LVM format
   1162 //
   1163 // Inputs:
   1164 //  pContext:   effect engine context
   1165 //  level       level to be applied
   1166 //
   1167 //----------------------------------------------------------------------------
   1168 
   1169 void ReverbSetRoomLevel(ReverbContext *pContext, int16_t level){
   1170     //ALOGV("\tReverbSetRoomLevel start (%d)", level);
   1171 
   1172     LVREV_ControlParams_st    ActiveParams;              /* Current control Parameters */
   1173     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;     /* Function call status */
   1174     LVM_INT32                 CombinedLevel;             // Sum of room and reverb level controls
   1175 
   1176     /* Get the current settings */
   1177     LvmStatus = LVREV_GetControlParameters(pContext->hInstance, &ActiveParams);
   1178     LVM_ERROR_CHECK(LvmStatus, "LVREV_GetControlParameters", "ReverbSetRoomLevel")
   1179     //ALOGV("\tReverbSetRoomLevel Succesfully returned from LVM_GetControlParameters\n");
   1180     //ALOGV("\tReverbSetRoomLevel() just Got -> %d\n", ActiveParams.Level);
   1181 
   1182     // needs to subtract max levels for both RoomLevel and ReverbLevel
   1183     CombinedLevel = (level + pContext->SavedReverbLevel)-LVREV_MAX_REVERB_LEVEL;
   1184     ActiveParams.Level = ReverbConvertLevel(CombinedLevel);
   1185 
   1186     /* Activate the initial settings */
   1187     LvmStatus = LVREV_SetControlParameters(pContext->hInstance, &ActiveParams);
   1188     LVM_ERROR_CHECK(LvmStatus, "LVREV_SetControlParameters", "ReverbSetRoomLevel")
   1189     //ALOGV("\tReverbSetRoomLevel() just Set -> %d\n", ActiveParams.Level);
   1190 
   1191     pContext->SavedRoomLevel = level;
   1192     //ALOGV("\tReverbSetRoomLevel end");
   1193     return;
   1194 }
   1195 
   1196 //----------------------------------------------------------------------------
   1197 // ReverbGetRoomLevel()
   1198 //----------------------------------------------------------------------------
   1199 // Purpose:
   1200 // Get the level applied to the Revervb. Must first be converted to LVM format
   1201 //
   1202 // Inputs:
   1203 //  pContext:   effect engine context
   1204 //
   1205 //----------------------------------------------------------------------------
   1206 
   1207 int16_t ReverbGetRoomLevel(ReverbContext *pContext){
   1208     int16_t level;
   1209     //ALOGV("\tReverbGetRoomLevel start");
   1210 
   1211     LVREV_ControlParams_st    ActiveParams;              /* Current control Parameters */
   1212     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;     /* Function call status */
   1213     LVM_INT32                 CombinedLevel;             // Sum of room and reverb level controls
   1214 
   1215     /* Get the current settings */
   1216     LvmStatus = LVREV_GetControlParameters(pContext->hInstance, &ActiveParams);
   1217     LVM_ERROR_CHECK(LvmStatus, "LVREV_GetControlParameters", "ReverbGetRoomLevel")
   1218     //ALOGV("\tReverbGetRoomLevel Succesfully returned from LVM_GetControlParameters\n");
   1219     //ALOGV("\tReverbGetRoomLevel() just Got -> %d\n", ActiveParams.Level);
   1220 
   1221     // needs to subtract max levels for both RoomLevel and ReverbLevel
   1222     CombinedLevel = (pContext->SavedRoomLevel + pContext->SavedReverbLevel-LVREV_MAX_REVERB_LEVEL);
   1223     level = ReverbConvertLevel(CombinedLevel);
   1224 
   1225     //ALOGV("\tReverbGetRoomLevel, Level = %d, pContext->SavedRoomLevel = %d, "
   1226     //     "pContext->SavedReverbLevel = %d, CombinedLevel = %d, level = %d",
   1227     //     ActiveParams.Level, pContext->SavedRoomLevel,
   1228     //     pContext->SavedReverbLevel, CombinedLevel, level);
   1229 
   1230     if(ActiveParams.Level != level){
   1231         ALOGV("\tLVM_ERROR : (ignore at start up) ReverbGetRoomLevel() has wrong level -> %d %d\n",
   1232               ActiveParams.Level, level);
   1233     }
   1234 
   1235     //ALOGV("\tReverbGetRoomLevel end");
   1236     return pContext->SavedRoomLevel;
   1237 }
   1238 
   1239 //----------------------------------------------------------------------------
   1240 // ReverbSetDecayTime()
   1241 //----------------------------------------------------------------------------
   1242 // Purpose:
   1243 // Apply the decay time to the Reverb.
   1244 //
   1245 // Inputs:
   1246 //  pContext:   effect engine context
   1247 //  time        decay to be applied
   1248 //
   1249 //----------------------------------------------------------------------------
   1250 
   1251 void ReverbSetDecayTime(ReverbContext *pContext, uint32_t time){
   1252     //ALOGV("\tReverbSetDecayTime start (%d)", time);
   1253 
   1254     LVREV_ControlParams_st    ActiveParams;              /* Current control Parameters */
   1255     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;     /* Function call status */
   1256 
   1257     /* Get the current settings */
   1258     LvmStatus = LVREV_GetControlParameters(pContext->hInstance, &ActiveParams);
   1259     LVM_ERROR_CHECK(LvmStatus, "LVREV_GetControlParameters", "ReverbSetDecayTime")
   1260     //ALOGV("\tReverbSetDecayTime Succesfully returned from LVM_GetControlParameters\n");
   1261     //ALOGV("\tReverbSetDecayTime() just Got -> %d\n", ActiveParams.T60);
   1262 
   1263     if (time <= LVREV_MAX_T60) {
   1264         ActiveParams.T60 = (LVM_UINT16)time;
   1265     }
   1266     else {
   1267         ActiveParams.T60 = LVREV_MAX_T60;
   1268     }
   1269 
   1270     /* Activate the initial settings */
   1271     LvmStatus = LVREV_SetControlParameters(pContext->hInstance, &ActiveParams);
   1272     LVM_ERROR_CHECK(LvmStatus, "LVREV_SetControlParameters", "ReverbSetDecayTime")
   1273     //ALOGV("\tReverbSetDecayTime() just Set -> %d\n", ActiveParams.T60);
   1274 
   1275     pContext->SamplesToExitCount = (ActiveParams.T60 * pContext->config.inputCfg.samplingRate)/1000;
   1276     //ALOGV("\tReverbSetDecayTime() just Set SamplesToExitCount-> %d\n",pContext->SamplesToExitCount);
   1277     pContext->SavedDecayTime = (int16_t)time;
   1278     //ALOGV("\tReverbSetDecayTime end");
   1279     return;
   1280 }
   1281 
   1282 //----------------------------------------------------------------------------
   1283 // ReverbGetDecayTime()
   1284 //----------------------------------------------------------------------------
   1285 // Purpose:
   1286 // Get the decay time applied to the Revervb.
   1287 //
   1288 // Inputs:
   1289 //  pContext:   effect engine context
   1290 //
   1291 //----------------------------------------------------------------------------
   1292 
   1293 uint32_t ReverbGetDecayTime(ReverbContext *pContext){
   1294     //ALOGV("\tReverbGetDecayTime start");
   1295 
   1296     LVREV_ControlParams_st    ActiveParams;              /* Current control Parameters */
   1297     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;     /* Function call status */
   1298 
   1299     /* Get the current settings */
   1300     LvmStatus = LVREV_GetControlParameters(pContext->hInstance, &ActiveParams);
   1301     LVM_ERROR_CHECK(LvmStatus, "LVREV_GetControlParameters", "ReverbGetDecayTime")
   1302     //ALOGV("\tReverbGetDecayTime Succesfully returned from LVM_GetControlParameters\n");
   1303     //ALOGV("\tReverbGetDecayTime() just Got -> %d\n", ActiveParams.T60);
   1304 
   1305     if(ActiveParams.T60 != pContext->SavedDecayTime){
   1306         // This will fail if the decay time is set to more than 7000
   1307         ALOGV("\tLVM_ERROR : ReverbGetDecayTime() has wrong level -> %d %d\n",
   1308          ActiveParams.T60, pContext->SavedDecayTime);
   1309     }
   1310 
   1311     //ALOGV("\tReverbGetDecayTime end");
   1312     return (uint32_t)ActiveParams.T60;
   1313 }
   1314 
   1315 //----------------------------------------------------------------------------
   1316 // ReverbSetDecayHfRatio()
   1317 //----------------------------------------------------------------------------
   1318 // Purpose:
   1319 // Apply the HF decay ratio to the Reverb.
   1320 //
   1321 // Inputs:
   1322 //  pContext:   effect engine context
   1323 //  ratio       ratio to be applied
   1324 //
   1325 //----------------------------------------------------------------------------
   1326 
   1327 void ReverbSetDecayHfRatio(ReverbContext *pContext, int16_t ratio){
   1328     //ALOGV("\tReverbSetDecayHfRatioe start (%d)", ratio);
   1329 
   1330     LVREV_ControlParams_st    ActiveParams;              /* Current control Parameters */
   1331     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;   /* Function call status */
   1332 
   1333     /* Get the current settings */
   1334     LvmStatus = LVREV_GetControlParameters(pContext->hInstance, &ActiveParams);
   1335     LVM_ERROR_CHECK(LvmStatus, "LVREV_GetControlParameters", "ReverbSetDecayHfRatio")
   1336     //ALOGV("\tReverbSetDecayHfRatio Succesfully returned from LVM_GetControlParameters\n");
   1337     //ALOGV("\tReverbSetDecayHfRatio() just Got -> %d\n", ActiveParams.Damping);
   1338 
   1339     ActiveParams.Damping = (LVM_INT16)(ratio/20);
   1340 
   1341     /* Activate the initial settings */
   1342     LvmStatus = LVREV_SetControlParameters(pContext->hInstance, &ActiveParams);
   1343     LVM_ERROR_CHECK(LvmStatus, "LVREV_SetControlParameters", "ReverbSetDecayHfRatio")
   1344     //ALOGV("\tReverbSetDecayHfRatio() just Set -> %d\n", ActiveParams.Damping);
   1345 
   1346     pContext->SavedDecayHfRatio = ratio;
   1347     //ALOGV("\tReverbSetDecayHfRatio end");
   1348     return;
   1349 }
   1350 
   1351 //----------------------------------------------------------------------------
   1352 // ReverbGetDecayHfRatio()
   1353 //----------------------------------------------------------------------------
   1354 // Purpose:
   1355 // Get the HF decay ratio applied to the Revervb.
   1356 //
   1357 // Inputs:
   1358 //  pContext:   effect engine context
   1359 //
   1360 //----------------------------------------------------------------------------
   1361 
   1362 int32_t ReverbGetDecayHfRatio(ReverbContext *pContext){
   1363     //ALOGV("\tReverbGetDecayHfRatio start");
   1364 
   1365     LVREV_ControlParams_st    ActiveParams;              /* Current control Parameters */
   1366     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;   /* Function call status */
   1367 
   1368     /* Get the current settings */
   1369     LvmStatus = LVREV_GetControlParameters(pContext->hInstance, &ActiveParams);
   1370     LVM_ERROR_CHECK(LvmStatus, "LVREV_GetControlParameters", "ReverbGetDecayHfRatio")
   1371     //ALOGV("\tReverbGetDecayHfRatio Succesfully returned from LVM_GetControlParameters\n");
   1372     //ALOGV("\tReverbGetDecayHfRatio() just Got -> %d\n", ActiveParams.Damping);
   1373 
   1374     if(ActiveParams.Damping != (LVM_INT16)(pContext->SavedDecayHfRatio / 20)){
   1375         ALOGV("\tLVM_ERROR : ReverbGetDecayHfRatio() has wrong level -> %d %d\n",
   1376          ActiveParams.Damping, pContext->SavedDecayHfRatio);
   1377     }
   1378 
   1379     //ALOGV("\tReverbGetDecayHfRatio end");
   1380     return pContext->SavedDecayHfRatio;
   1381 }
   1382 
   1383 //----------------------------------------------------------------------------
   1384 // ReverbSetDiffusion()
   1385 //----------------------------------------------------------------------------
   1386 // Purpose:
   1387 // Apply the diffusion to the Reverb.
   1388 //
   1389 // Inputs:
   1390 //  pContext:   effect engine context
   1391 //  level        decay to be applied
   1392 //
   1393 //----------------------------------------------------------------------------
   1394 
   1395 void ReverbSetDiffusion(ReverbContext *pContext, int16_t level){
   1396     //ALOGV("\tReverbSetDiffusion start (%d)", level);
   1397 
   1398     LVREV_ControlParams_st    ActiveParams;              /* Current control Parameters */
   1399     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;     /* Function call status */
   1400 
   1401     /* Get the current settings */
   1402     LvmStatus = LVREV_GetControlParameters(pContext->hInstance, &ActiveParams);
   1403     LVM_ERROR_CHECK(LvmStatus, "LVREV_GetControlParameters", "ReverbSetDiffusion")
   1404     //ALOGV("\tReverbSetDiffusion Succesfully returned from LVM_GetControlParameters\n");
   1405     //ALOGV("\tReverbSetDiffusion() just Got -> %d\n", ActiveParams.Density);
   1406 
   1407     ActiveParams.Density = (LVM_INT16)(level/10);
   1408 
   1409     /* Activate the initial settings */
   1410     LvmStatus = LVREV_SetControlParameters(pContext->hInstance, &ActiveParams);
   1411     LVM_ERROR_CHECK(LvmStatus, "LVREV_SetControlParameters", "ReverbSetDiffusion")
   1412     //ALOGV("\tReverbSetDiffusion() just Set -> %d\n", ActiveParams.Density);
   1413 
   1414     pContext->SavedDiffusion = level;
   1415     //ALOGV("\tReverbSetDiffusion end");
   1416     return;
   1417 }
   1418 
   1419 //----------------------------------------------------------------------------
   1420 // ReverbGetDiffusion()
   1421 //----------------------------------------------------------------------------
   1422 // Purpose:
   1423 // Get the decay time applied to the Revervb.
   1424 //
   1425 // Inputs:
   1426 //  pContext:   effect engine context
   1427 //
   1428 //----------------------------------------------------------------------------
   1429 
   1430 int32_t ReverbGetDiffusion(ReverbContext *pContext){
   1431     //ALOGV("\tReverbGetDiffusion start");
   1432 
   1433     LVREV_ControlParams_st    ActiveParams;              /* Current control Parameters */
   1434     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;     /* Function call status */
   1435     LVM_INT16                 Temp;
   1436 
   1437     /* Get the current settings */
   1438     LvmStatus = LVREV_GetControlParameters(pContext->hInstance, &ActiveParams);
   1439     LVM_ERROR_CHECK(LvmStatus, "LVREV_GetControlParameters", "ReverbGetDiffusion")
   1440     //ALOGV("\tReverbGetDiffusion Succesfully returned from LVM_GetControlParameters\n");
   1441     //ALOGV("\tReverbGetDiffusion just Got -> %d\n", ActiveParams.Density);
   1442 
   1443     Temp = (LVM_INT16)(pContext->SavedDiffusion/10);
   1444 
   1445     if(ActiveParams.Density != Temp){
   1446         ALOGV("\tLVM_ERROR : ReverbGetDiffusion invalid value %d %d", Temp, ActiveParams.Density);
   1447     }
   1448 
   1449     //ALOGV("\tReverbGetDiffusion end");
   1450     return pContext->SavedDiffusion;
   1451 }
   1452 
   1453 //----------------------------------------------------------------------------
   1454 // ReverbSetDensity()
   1455 //----------------------------------------------------------------------------
   1456 // Purpose:
   1457 // Apply the density level the Reverb.
   1458 //
   1459 // Inputs:
   1460 //  pContext:   effect engine context
   1461 //  level        decay to be applied
   1462 //
   1463 //----------------------------------------------------------------------------
   1464 
   1465 void ReverbSetDensity(ReverbContext *pContext, int16_t level){
   1466     //ALOGV("\tReverbSetDensity start (%d)", level);
   1467 
   1468     LVREV_ControlParams_st    ActiveParams;              /* Current control Parameters */
   1469     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;     /* Function call status */
   1470 
   1471     /* Get the current settings */
   1472     LvmStatus = LVREV_GetControlParameters(pContext->hInstance, &ActiveParams);
   1473     LVM_ERROR_CHECK(LvmStatus, "LVREV_GetControlParameters", "ReverbSetDensity")
   1474     //ALOGV("\tReverbSetDensity Succesfully returned from LVM_GetControlParameters\n");
   1475     //ALOGV("\tReverbSetDensity just Got -> %d\n", ActiveParams.RoomSize);
   1476 
   1477     ActiveParams.RoomSize = (LVM_INT16)(((level * 99) / 1000) + 1);
   1478 
   1479     /* Activate the initial settings */
   1480     LvmStatus = LVREV_SetControlParameters(pContext->hInstance, &ActiveParams);
   1481     LVM_ERROR_CHECK(LvmStatus, "LVREV_SetControlParameters", "ReverbSetDensity")
   1482     //ALOGV("\tReverbSetDensity just Set -> %d\n", ActiveParams.RoomSize);
   1483 
   1484     pContext->SavedDensity = level;
   1485     //ALOGV("\tReverbSetDensity end");
   1486     return;
   1487 }
   1488 
   1489 //----------------------------------------------------------------------------
   1490 // ReverbGetDensity()
   1491 //----------------------------------------------------------------------------
   1492 // Purpose:
   1493 // Get the density level applied to the Revervb.
   1494 //
   1495 // Inputs:
   1496 //  pContext:   effect engine context
   1497 //
   1498 //----------------------------------------------------------------------------
   1499 
   1500 int32_t ReverbGetDensity(ReverbContext *pContext){
   1501     //ALOGV("\tReverbGetDensity start");
   1502 
   1503     LVREV_ControlParams_st    ActiveParams;              /* Current control Parameters */
   1504     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;     /* Function call status */
   1505     LVM_INT16                 Temp;
   1506     /* Get the current settings */
   1507     LvmStatus = LVREV_GetControlParameters(pContext->hInstance, &ActiveParams);
   1508     LVM_ERROR_CHECK(LvmStatus, "LVREV_GetControlParameters", "ReverbGetDensity")
   1509     //ALOGV("\tReverbGetDensity Succesfully returned from LVM_GetControlParameters\n");
   1510     //ALOGV("\tReverbGetDensity() just Got -> %d\n", ActiveParams.RoomSize);
   1511 
   1512 
   1513     Temp = (LVM_INT16)(((pContext->SavedDensity * 99) / 1000) + 1);
   1514 
   1515     if(Temp != ActiveParams.RoomSize){
   1516         ALOGV("\tLVM_ERROR : ReverbGetDensity invalid value %d %d", Temp, ActiveParams.RoomSize);
   1517     }
   1518 
   1519     //ALOGV("\tReverbGetDensity end");
   1520     return pContext->SavedDensity;
   1521 }
   1522 
   1523 //----------------------------------------------------------------------------
   1524 // Reverb_LoadPreset()
   1525 //----------------------------------------------------------------------------
   1526 // Purpose:
   1527 // Load a the next preset
   1528 //
   1529 // Inputs:
   1530 //  pContext         - handle to instance data
   1531 //
   1532 // Outputs:
   1533 //
   1534 // Side Effects:
   1535 //
   1536 //----------------------------------------------------------------------------
   1537 int Reverb_LoadPreset(ReverbContext   *pContext)
   1538 {
   1539     //TODO: add reflections delay, level and reverb delay when early reflections are
   1540     // implemented
   1541     pContext->curPreset = pContext->nextPreset;
   1542 
   1543     if (pContext->curPreset != REVERB_PRESET_NONE) {
   1544         const t_reverb_settings *preset = &sReverbPresets[pContext->curPreset];
   1545         ReverbSetRoomLevel(pContext, preset->roomLevel);
   1546         ReverbSetRoomHfLevel(pContext, preset->roomHFLevel);
   1547         ReverbSetDecayTime(pContext, preset->decayTime);
   1548         ReverbSetDecayHfRatio(pContext, preset->decayHFRatio);
   1549         //reflectionsLevel
   1550         //reflectionsDelay
   1551         ReverbSetReverbLevel(pContext, preset->reverbLevel);
   1552         // reverbDelay
   1553         ReverbSetDiffusion(pContext, preset->diffusion);
   1554         ReverbSetDensity(pContext, preset->density);
   1555     }
   1556 
   1557     return 0;
   1558 }
   1559 
   1560 
   1561 //----------------------------------------------------------------------------
   1562 // Reverb_getParameter()
   1563 //----------------------------------------------------------------------------
   1564 // Purpose:
   1565 // Get a Reverb parameter
   1566 //
   1567 // Inputs:
   1568 //  pContext         - handle to instance data
   1569 //  pParam           - pointer to parameter
   1570 //  pValue           - pointer to variable to hold retrieved value
   1571 //  pValueSize       - pointer to value size: maximum size as input
   1572 //
   1573 // Outputs:
   1574 //  *pValue updated with parameter value
   1575 //  *pValueSize updated with actual value size
   1576 //
   1577 //
   1578 // Side Effects:
   1579 //
   1580 //----------------------------------------------------------------------------
   1581 
   1582 int Reverb_getParameter(ReverbContext *pContext,
   1583                         void          *pParam,
   1584                         uint32_t      *pValueSize,
   1585                         void          *pValue){
   1586     int status = 0;
   1587     int32_t *pParamTemp = (int32_t *)pParam;
   1588     int32_t param = *pParamTemp++;
   1589     t_reverb_settings *pProperties;
   1590 
   1591     //ALOGV("\tReverb_getParameter start");
   1592     if (pContext->preset) {
   1593         if (param != REVERB_PARAM_PRESET || *pValueSize < sizeof(uint16_t)) {
   1594             return -EINVAL;
   1595         }
   1596 
   1597         *(uint16_t *)pValue = pContext->nextPreset;
   1598         ALOGV("get REVERB_PARAM_PRESET, preset %d", pContext->nextPreset);
   1599         return 0;
   1600     }
   1601 
   1602     switch (param){
   1603         case REVERB_PARAM_ROOM_LEVEL:
   1604             if (*pValueSize != sizeof(int16_t)){
   1605                 ALOGV("\tLVM_ERROR : Reverb_getParameter() invalid pValueSize1 %d", *pValueSize);
   1606                 return -EINVAL;
   1607             }
   1608             *pValueSize = sizeof(int16_t);
   1609             break;
   1610         case REVERB_PARAM_ROOM_HF_LEVEL:
   1611             if (*pValueSize != sizeof(int16_t)){
   1612                 ALOGV("\tLVM_ERROR : Reverb_getParameter() invalid pValueSize12 %d", *pValueSize);
   1613                 return -EINVAL;
   1614             }
   1615             *pValueSize = sizeof(int16_t);
   1616             break;
   1617         case REVERB_PARAM_DECAY_TIME:
   1618             if (*pValueSize != sizeof(uint32_t)){
   1619                 ALOGV("\tLVM_ERROR : Reverb_getParameter() invalid pValueSize3 %d", *pValueSize);
   1620                 return -EINVAL;
   1621             }
   1622             *pValueSize = sizeof(uint32_t);
   1623             break;
   1624         case REVERB_PARAM_DECAY_HF_RATIO:
   1625             if (*pValueSize != sizeof(int16_t)){
   1626                 ALOGV("\tLVM_ERROR : Reverb_getParameter() invalid pValueSize4 %d", *pValueSize);
   1627                 return -EINVAL;
   1628             }
   1629             *pValueSize = sizeof(int16_t);
   1630             break;
   1631         case REVERB_PARAM_REFLECTIONS_LEVEL:
   1632             if (*pValueSize != sizeof(int16_t)){
   1633                 ALOGV("\tLVM_ERROR : Reverb_getParameter() invalid pValueSize5 %d", *pValueSize);
   1634                 return -EINVAL;
   1635             }
   1636             *pValueSize = sizeof(int16_t);
   1637             break;
   1638         case REVERB_PARAM_REFLECTIONS_DELAY:
   1639             if (*pValueSize != sizeof(uint32_t)){
   1640                 ALOGV("\tLVM_ERROR : Reverb_getParameter() invalid pValueSize6 %d", *pValueSize);
   1641                 return -EINVAL;
   1642             }
   1643             *pValueSize = sizeof(uint32_t);
   1644             break;
   1645         case REVERB_PARAM_REVERB_LEVEL:
   1646             if (*pValueSize != sizeof(int16_t)){
   1647                 ALOGV("\tLVM_ERROR : Reverb_getParameter() invalid pValueSize7 %d", *pValueSize);
   1648                 return -EINVAL;
   1649             }
   1650             *pValueSize = sizeof(int16_t);
   1651             break;
   1652         case REVERB_PARAM_REVERB_DELAY:
   1653             if (*pValueSize != sizeof(uint32_t)){
   1654                 ALOGV("\tLVM_ERROR : Reverb_getParameter() invalid pValueSize8 %d", *pValueSize);
   1655                 return -EINVAL;
   1656             }
   1657             *pValueSize = sizeof(uint32_t);
   1658             break;
   1659         case REVERB_PARAM_DIFFUSION:
   1660             if (*pValueSize != sizeof(int16_t)){
   1661                 ALOGV("\tLVM_ERROR : Reverb_getParameter() invalid pValueSize9 %d", *pValueSize);
   1662                 return -EINVAL;
   1663             }
   1664             *pValueSize = sizeof(int16_t);
   1665             break;
   1666         case REVERB_PARAM_DENSITY:
   1667             if (*pValueSize != sizeof(int16_t)){
   1668                 ALOGV("\tLVM_ERROR : Reverb_getParameter() invalid pValueSize10 %d", *pValueSize);
   1669                 return -EINVAL;
   1670             }
   1671             *pValueSize = sizeof(int16_t);
   1672             break;
   1673         case REVERB_PARAM_PROPERTIES:
   1674             if (*pValueSize != sizeof(t_reverb_settings)){
   1675                 ALOGV("\tLVM_ERROR : Reverb_getParameter() invalid pValueSize11 %d", *pValueSize);
   1676                 return -EINVAL;
   1677             }
   1678             *pValueSize = sizeof(t_reverb_settings);
   1679             break;
   1680 
   1681         default:
   1682             ALOGV("\tLVM_ERROR : Reverb_getParameter() invalid param %d", param);
   1683             return -EINVAL;
   1684     }
   1685 
   1686     pProperties = (t_reverb_settings *) pValue;
   1687 
   1688     switch (param){
   1689         case REVERB_PARAM_PROPERTIES:
   1690             pProperties->roomLevel = ReverbGetRoomLevel(pContext);
   1691             pProperties->roomHFLevel = ReverbGetRoomHfLevel(pContext);
   1692             pProperties->decayTime = ReverbGetDecayTime(pContext);
   1693             pProperties->decayHFRatio = ReverbGetDecayHfRatio(pContext);
   1694             pProperties->reflectionsLevel = 0;
   1695             pProperties->reflectionsDelay = 0;
   1696             pProperties->reverbDelay = 0;
   1697             pProperties->reverbLevel = ReverbGetReverbLevel(pContext);
   1698             pProperties->diffusion = ReverbGetDiffusion(pContext);
   1699             pProperties->density = ReverbGetDensity(pContext);
   1700 
   1701             ALOGV("\tReverb_getParameter() REVERB_PARAM_PROPERTIES Value is roomLevel        %d",
   1702                 pProperties->roomLevel);
   1703             ALOGV("\tReverb_getParameter() REVERB_PARAM_PROPERTIES Value is roomHFLevel      %d",
   1704                 pProperties->roomHFLevel);
   1705             ALOGV("\tReverb_getParameter() REVERB_PARAM_PROPERTIES Value is decayTime        %d",
   1706                 pProperties->decayTime);
   1707             ALOGV("\tReverb_getParameter() REVERB_PARAM_PROPERTIES Value is decayHFRatio     %d",
   1708                 pProperties->decayHFRatio);
   1709             ALOGV("\tReverb_getParameter() REVERB_PARAM_PROPERTIES Value is reflectionsLevel %d",
   1710                 pProperties->reflectionsLevel);
   1711             ALOGV("\tReverb_getParameter() REVERB_PARAM_PROPERTIES Value is reflectionsDelay %d",
   1712                 pProperties->reflectionsDelay);
   1713             ALOGV("\tReverb_getParameter() REVERB_PARAM_PROPERTIES Value is reverbDelay      %d",
   1714                 pProperties->reverbDelay);
   1715             ALOGV("\tReverb_getParameter() REVERB_PARAM_PROPERTIES Value is reverbLevel      %d",
   1716                 pProperties->reverbLevel);
   1717             ALOGV("\tReverb_getParameter() REVERB_PARAM_PROPERTIES Value is diffusion        %d",
   1718                 pProperties->diffusion);
   1719             ALOGV("\tReverb_getParameter() REVERB_PARAM_PROPERTIES Value is density          %d",
   1720                 pProperties->density);
   1721             break;
   1722 
   1723         case REVERB_PARAM_ROOM_LEVEL:
   1724             *(int16_t *)pValue = ReverbGetRoomLevel(pContext);
   1725 
   1726             //ALOGV("\tReverb_getParameter() REVERB_PARAM_ROOM_LEVEL Value is %d",
   1727             //        *(int16_t *)pValue);
   1728             break;
   1729         case REVERB_PARAM_ROOM_HF_LEVEL:
   1730             *(int16_t *)pValue = ReverbGetRoomHfLevel(pContext);
   1731 
   1732             //ALOGV("\tReverb_getParameter() REVERB_PARAM_ROOM_HF_LEVEL Value is %d",
   1733             //        *(int16_t *)pValue);
   1734             break;
   1735         case REVERB_PARAM_DECAY_TIME:
   1736             *(uint32_t *)pValue = ReverbGetDecayTime(pContext);
   1737 
   1738             //ALOGV("\tReverb_getParameter() REVERB_PARAM_DECAY_TIME Value is %d",
   1739             //        *(int32_t *)pValue);
   1740             break;
   1741         case REVERB_PARAM_DECAY_HF_RATIO:
   1742             *(int16_t *)pValue = ReverbGetDecayHfRatio(pContext);
   1743 
   1744             //ALOGV("\tReverb_getParameter() REVERB_PARAM_DECAY_HF_RATION Value is %d",
   1745             //        *(int16_t *)pValue);
   1746             break;
   1747         case REVERB_PARAM_REVERB_LEVEL:
   1748              *(int16_t *)pValue = ReverbGetReverbLevel(pContext);
   1749 
   1750             //ALOGV("\tReverb_getParameter() REVERB_PARAM_REVERB_LEVEL Value is %d",
   1751             //        *(int16_t *)pValue);
   1752             break;
   1753         case REVERB_PARAM_DIFFUSION:
   1754             *(int16_t *)pValue = ReverbGetDiffusion(pContext);
   1755 
   1756             //ALOGV("\tReverb_getParameter() REVERB_PARAM_DECAY_DIFFUSION Value is %d",
   1757             //        *(int16_t *)pValue);
   1758             break;
   1759         case REVERB_PARAM_DENSITY:
   1760             *(int16_t *)pValue = ReverbGetDensity(pContext);
   1761             //ALOGV("\tReverb_getParameter() REVERB_PARAM_DENSITY Value is %d",
   1762             //        *(uint32_t *)pValue);
   1763             break;
   1764         case REVERB_PARAM_REFLECTIONS_LEVEL:
   1765             *(uint16_t *)pValue = 0;
   1766             break;
   1767         case REVERB_PARAM_REFLECTIONS_DELAY:
   1768         case REVERB_PARAM_REVERB_DELAY:
   1769             *(uint32_t *)pValue = 0;
   1770             break;
   1771 
   1772         default:
   1773             ALOGV("\tLVM_ERROR : Reverb_getParameter() invalid param %d", param);
   1774             status = -EINVAL;
   1775             break;
   1776     }
   1777 
   1778     //ALOGV("\tReverb_getParameter end");
   1779     return status;
   1780 } /* end Reverb_getParameter */
   1781 
   1782 //----------------------------------------------------------------------------
   1783 // Reverb_setParameter()
   1784 //----------------------------------------------------------------------------
   1785 // Purpose:
   1786 // Set a Reverb parameter
   1787 //
   1788 // Inputs:
   1789 //  pContext         - handle to instance data
   1790 //  pParam           - pointer to parameter
   1791 //  pValue           - pointer to value
   1792 //  vsize            - value size
   1793 //
   1794 // Outputs:
   1795 //
   1796 //----------------------------------------------------------------------------
   1797 
   1798 int Reverb_setParameter (ReverbContext *pContext, void *pParam, void *pValue, int vsize){
   1799     int status = 0;
   1800     int16_t level;
   1801     int16_t ratio;
   1802     uint32_t time;
   1803     t_reverb_settings *pProperties;
   1804     int32_t *pParamTemp = (int32_t *)pParam;
   1805     int32_t param = *pParamTemp++;
   1806 
   1807     //ALOGV("\tReverb_setParameter start");
   1808     if (pContext->preset) {
   1809         if (param != REVERB_PARAM_PRESET) {
   1810             return -EINVAL;
   1811         }
   1812         if (vsize < (int)sizeof(uint16_t)) {
   1813             android_errorWriteLog(0x534e4554, "67647856");
   1814             return -EINVAL;
   1815         }
   1816 
   1817         uint16_t preset = *(uint16_t *)pValue;
   1818         ALOGV("set REVERB_PARAM_PRESET, preset %d", preset);
   1819         if (preset > REVERB_PRESET_LAST) {
   1820             return -EINVAL;
   1821         }
   1822         pContext->nextPreset = preset;
   1823         return 0;
   1824     }
   1825 
   1826     if (vsize < Reverb_paramValueSize(param)) {
   1827         android_errorWriteLog(0x534e4554, "63526567");
   1828         return -EINVAL;
   1829     }
   1830 
   1831     switch (param){
   1832         case REVERB_PARAM_PROPERTIES:
   1833             ALOGV("\tReverb_setParameter() REVERB_PARAM_PROPERTIES");
   1834             pProperties = (t_reverb_settings *) pValue;
   1835             ReverbSetRoomLevel(pContext, pProperties->roomLevel);
   1836             ReverbSetRoomHfLevel(pContext, pProperties->roomHFLevel);
   1837             ReverbSetDecayTime(pContext, pProperties->decayTime);
   1838             ReverbSetDecayHfRatio(pContext, pProperties->decayHFRatio);
   1839             ReverbSetReverbLevel(pContext, pProperties->reverbLevel);
   1840             ReverbSetDiffusion(pContext, pProperties->diffusion);
   1841             ReverbSetDensity(pContext, pProperties->density);
   1842             break;
   1843         case REVERB_PARAM_ROOM_LEVEL:
   1844             level = *(int16_t *)pValue;
   1845             //ALOGV("\tReverb_setParameter() REVERB_PARAM_ROOM_LEVEL value is %d", level);
   1846             //ALOGV("\tReverb_setParameter() Calling ReverbSetRoomLevel");
   1847             ReverbSetRoomLevel(pContext, level);
   1848             //ALOGV("\tReverb_setParameter() Called ReverbSetRoomLevel");
   1849            break;
   1850         case REVERB_PARAM_ROOM_HF_LEVEL:
   1851             level = *(int16_t *)pValue;
   1852             //ALOGV("\tReverb_setParameter() REVERB_PARAM_ROOM_HF_LEVEL value is %d", level);
   1853             //ALOGV("\tReverb_setParameter() Calling ReverbSetRoomHfLevel");
   1854             ReverbSetRoomHfLevel(pContext, level);
   1855             //ALOGV("\tReverb_setParameter() Called ReverbSetRoomHfLevel");
   1856            break;
   1857         case REVERB_PARAM_DECAY_TIME:
   1858             time = *(uint32_t *)pValue;
   1859             //ALOGV("\tReverb_setParameter() REVERB_PARAM_DECAY_TIME value is %d", time);
   1860             //ALOGV("\tReverb_setParameter() Calling ReverbSetDecayTime");
   1861             ReverbSetDecayTime(pContext, time);
   1862             //ALOGV("\tReverb_setParameter() Called ReverbSetDecayTime");
   1863            break;
   1864         case REVERB_PARAM_DECAY_HF_RATIO:
   1865             ratio = *(int16_t *)pValue;
   1866             //ALOGV("\tReverb_setParameter() REVERB_PARAM_DECAY_HF_RATIO value is %d", ratio);
   1867             //ALOGV("\tReverb_setParameter() Calling ReverbSetDecayHfRatio");
   1868             ReverbSetDecayHfRatio(pContext, ratio);
   1869             //ALOGV("\tReverb_setParameter() Called ReverbSetDecayHfRatio");
   1870             break;
   1871          case REVERB_PARAM_REVERB_LEVEL:
   1872             level = *(int16_t *)pValue;
   1873             //ALOGV("\tReverb_setParameter() REVERB_PARAM_REVERB_LEVEL value is %d", level);
   1874             //ALOGV("\tReverb_setParameter() Calling ReverbSetReverbLevel");
   1875             ReverbSetReverbLevel(pContext, level);
   1876             //ALOGV("\tReverb_setParameter() Called ReverbSetReverbLevel");
   1877            break;
   1878         case REVERB_PARAM_DIFFUSION:
   1879             ratio = *(int16_t *)pValue;
   1880             //ALOGV("\tReverb_setParameter() REVERB_PARAM_DECAY_DIFFUSION value is %d", ratio);
   1881             //ALOGV("\tReverb_setParameter() Calling ReverbSetDiffusion");
   1882             ReverbSetDiffusion(pContext, ratio);
   1883             //ALOGV("\tReverb_setParameter() Called ReverbSetDiffusion");
   1884             break;
   1885         case REVERB_PARAM_DENSITY:
   1886             ratio = *(int16_t *)pValue;
   1887             //ALOGV("\tReverb_setParameter() REVERB_PARAM_DECAY_DENSITY value is %d", ratio);
   1888             //ALOGV("\tReverb_setParameter() Calling ReverbSetDensity");
   1889             ReverbSetDensity(pContext, ratio);
   1890             //ALOGV("\tReverb_setParameter() Called ReverbSetDensity");
   1891             break;
   1892            break;
   1893         case REVERB_PARAM_REFLECTIONS_LEVEL:
   1894         case REVERB_PARAM_REFLECTIONS_DELAY:
   1895         case REVERB_PARAM_REVERB_DELAY:
   1896             break;
   1897         default:
   1898             ALOGV("\tLVM_ERROR : Reverb_setParameter() invalid param %d", param);
   1899             break;
   1900     }
   1901 
   1902     //ALOGV("\tReverb_setParameter end");
   1903     return status;
   1904 } /* end Reverb_setParameter */
   1905 
   1906 
   1907 /**
   1908  * returns the size in bytes of the value of each environmental reverb parameter
   1909  */
   1910 int Reverb_paramValueSize(int32_t param) {
   1911     switch (param) {
   1912     case REVERB_PARAM_ROOM_LEVEL:
   1913     case REVERB_PARAM_ROOM_HF_LEVEL:
   1914     case REVERB_PARAM_REFLECTIONS_LEVEL:
   1915     case REVERB_PARAM_REVERB_LEVEL:
   1916         return sizeof(int16_t); // millibel
   1917     case REVERB_PARAM_DECAY_TIME:
   1918     case REVERB_PARAM_REFLECTIONS_DELAY:
   1919     case REVERB_PARAM_REVERB_DELAY:
   1920         return sizeof(uint32_t); // milliseconds
   1921     case REVERB_PARAM_DECAY_HF_RATIO:
   1922     case REVERB_PARAM_DIFFUSION:
   1923     case REVERB_PARAM_DENSITY:
   1924         return sizeof(int16_t); // permille
   1925     case REVERB_PARAM_PROPERTIES:
   1926         return sizeof(s_reverb_settings); // struct of all reverb properties
   1927     }
   1928     return sizeof(int32_t);
   1929 }
   1930 
   1931 } // namespace
   1932 } // namespace
   1933 
   1934 extern "C" {
   1935 /* Effect Control Interface Implementation: Process */
   1936 int Reverb_process(effect_handle_t   self,
   1937                                  audio_buffer_t         *inBuffer,
   1938                                  audio_buffer_t         *outBuffer){
   1939     android::ReverbContext * pContext = (android::ReverbContext *) self;
   1940     int    status = 0;
   1941 
   1942     if (pContext == NULL){
   1943         ALOGV("\tLVM_ERROR : Reverb_process() ERROR pContext == NULL");
   1944         return -EINVAL;
   1945     }
   1946     if (inBuffer == NULL  || inBuffer->raw == NULL  ||
   1947             outBuffer == NULL || outBuffer->raw == NULL ||
   1948             inBuffer->frameCount != outBuffer->frameCount){
   1949         ALOGV("\tLVM_ERROR : Reverb_process() ERROR NULL INPUT POINTER OR FRAME COUNT IS WRONG");
   1950         return -EINVAL;
   1951     }
   1952     //ALOGV("\tReverb_process() Calling process with %d frames", outBuffer->frameCount);
   1953     /* Process all the available frames, block processing is handled internalLY by the LVM bundle */
   1954 #if defined (BUILD_FLOAT) && defined (NATIVE_FLOAT_BUFFER)
   1955     status = process(    inBuffer->f32,
   1956                          outBuffer->f32,
   1957                          outBuffer->frameCount,
   1958                          pContext);
   1959 #else
   1960     status = process(    inBuffer->s16,
   1961                          outBuffer->s16,
   1962                          outBuffer->frameCount,
   1963                          pContext);
   1964 #endif
   1965 
   1966     if (pContext->bEnabled == LVM_FALSE) {
   1967         if (pContext->SamplesToExitCount > 0) {
   1968             // signed - unsigned will trigger integer overflow if result becomes negative.
   1969             pContext->SamplesToExitCount -= (ssize_t)outBuffer->frameCount;
   1970         } else {
   1971             status = -ENODATA;
   1972         }
   1973     }
   1974 
   1975     return status;
   1976 }   /* end Reverb_process */
   1977 
   1978 /* Effect Control Interface Implementation: Command */
   1979 int Reverb_command(effect_handle_t  self,
   1980                               uint32_t            cmdCode,
   1981                               uint32_t            cmdSize,
   1982                               void                *pCmdData,
   1983                               uint32_t            *replySize,
   1984                               void                *pReplyData){
   1985     android::ReverbContext * pContext = (android::ReverbContext *) self;
   1986     LVREV_ControlParams_st    ActiveParams;              /* Current control Parameters */
   1987     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;     /* Function call status */
   1988 
   1989 
   1990     if (pContext == NULL){
   1991         ALOGV("\tLVM_ERROR : Reverb_command ERROR pContext == NULL");
   1992         return -EINVAL;
   1993     }
   1994 
   1995     //ALOGV("\tReverb_command INPUTS are: command %d cmdSize %d",cmdCode, cmdSize);
   1996 
   1997     switch (cmdCode){
   1998         case EFFECT_CMD_INIT:
   1999             //ALOGV("\tReverb_command cmdCode Case: "
   2000             //        "EFFECT_CMD_INIT start");
   2001 
   2002             if (pReplyData == NULL || replySize == NULL || *replySize != sizeof(int)){
   2003                 ALOGV("\tLVM_ERROR : Reverb_command cmdCode Case: "
   2004                         "EFFECT_CMD_INIT: ERROR");
   2005                 return -EINVAL;
   2006             }
   2007             *(int *) pReplyData = 0;
   2008             break;
   2009 
   2010         case EFFECT_CMD_SET_CONFIG:
   2011             //ALOGV("\tReverb_command cmdCode Case: "
   2012             //        "EFFECT_CMD_SET_CONFIG start");
   2013             if (pCmdData == NULL || cmdSize != sizeof(effect_config_t) ||
   2014                     pReplyData == NULL || replySize == NULL || *replySize != sizeof(int)) {
   2015                 ALOGV("\tLVM_ERROR : Reverb_command cmdCode Case: "
   2016                         "EFFECT_CMD_SET_CONFIG: ERROR");
   2017                 return -EINVAL;
   2018             }
   2019             *(int *) pReplyData = android::Reverb_setConfig(pContext,
   2020                                                             (effect_config_t *) pCmdData);
   2021             break;
   2022 
   2023         case EFFECT_CMD_GET_CONFIG:
   2024             if (pReplyData == NULL || replySize == NULL || *replySize != sizeof(effect_config_t)) {
   2025                 ALOGV("\tLVM_ERROR : Reverb_command cmdCode Case: "
   2026                         "EFFECT_CMD_GET_CONFIG: ERROR");
   2027                 return -EINVAL;
   2028             }
   2029 
   2030             android::Reverb_getConfig(pContext, (effect_config_t *)pReplyData);
   2031             break;
   2032 
   2033         case EFFECT_CMD_RESET:
   2034             //ALOGV("\tReverb_command cmdCode Case: "
   2035             //        "EFFECT_CMD_RESET start");
   2036             Reverb_setConfig(pContext, &pContext->config);
   2037             break;
   2038 
   2039         case EFFECT_CMD_GET_PARAM:{
   2040             //ALOGV("\tReverb_command cmdCode Case: "
   2041             //        "EFFECT_CMD_GET_PARAM start");
   2042             effect_param_t *p = (effect_param_t *)pCmdData;
   2043             if (SIZE_MAX - sizeof(effect_param_t) < (size_t)p->psize) {
   2044                 android_errorWriteLog(0x534e4554, "26347509");
   2045                 return -EINVAL;
   2046             }
   2047             if (pCmdData == NULL || cmdSize < sizeof(effect_param_t) ||
   2048                     cmdSize < (sizeof(effect_param_t) + p->psize) ||
   2049                     pReplyData == NULL || replySize == NULL ||
   2050                     *replySize < (sizeof(effect_param_t) + p->psize)) {
   2051                 ALOGV("\tLVM_ERROR : Reverb_command cmdCode Case: "
   2052                         "EFFECT_CMD_GET_PARAM: ERROR");
   2053                 return -EINVAL;
   2054             }
   2055 
   2056             memcpy(pReplyData, pCmdData, sizeof(effect_param_t) + p->psize);
   2057 
   2058             p = (effect_param_t *)pReplyData;
   2059 
   2060             int voffset = ((p->psize - 1) / sizeof(int32_t) + 1) * sizeof(int32_t);
   2061 
   2062             p->status = android::Reverb_getParameter(pContext,
   2063                                                          (void *)p->data,
   2064                                                           &p->vsize,
   2065                                                           p->data + voffset);
   2066 
   2067             *replySize = sizeof(effect_param_t) + voffset + p->vsize;
   2068 
   2069             //ALOGV("\tReverb_command EFFECT_CMD_GET_PARAM "
   2070             //        "*pCmdData %d, *replySize %d, *pReplyData %d ",
   2071             //        *(int32_t *)((char *)pCmdData + sizeof(effect_param_t)),
   2072             //        *replySize,
   2073             //        *(int16_t *)((char *)pReplyData + sizeof(effect_param_t) + voffset));
   2074 
   2075         } break;
   2076         case EFFECT_CMD_SET_PARAM:{
   2077 
   2078             //ALOGV("\tReverb_command cmdCode Case: "
   2079             //        "EFFECT_CMD_SET_PARAM start");
   2080             //ALOGV("\tReverb_command EFFECT_CMD_SET_PARAM param %d, *replySize %d, value %d ",
   2081             //        *(int32_t *)((char *)pCmdData + sizeof(effect_param_t)),
   2082             //        *replySize,
   2083             //        *(int16_t *)((char *)pCmdData + sizeof(effect_param_t) + sizeof(int32_t)));
   2084 
   2085             if (pCmdData == NULL || (cmdSize < (sizeof(effect_param_t) + sizeof(int32_t))) ||
   2086                     pReplyData == NULL ||  replySize == NULL || *replySize != sizeof(int32_t)) {
   2087                 ALOGV("\tLVM_ERROR : Reverb_command cmdCode Case: "
   2088                         "EFFECT_CMD_SET_PARAM: ERROR");
   2089                 return -EINVAL;
   2090             }
   2091 
   2092             effect_param_t *p = (effect_param_t *) pCmdData;
   2093 
   2094             if (p->psize != sizeof(int32_t)){
   2095                 ALOGV("\t4LVM_ERROR : Reverb_command cmdCode Case: "
   2096                         "EFFECT_CMD_SET_PARAM: ERROR, psize is not sizeof(int32_t)");
   2097                 return -EINVAL;
   2098             }
   2099 
   2100             //ALOGV("\tn5Reverb_command cmdSize is %d\n"
   2101             //        "\tsizeof(effect_param_t) is  %d\n"
   2102             //        "\tp->psize is %d\n"
   2103             //        "\tp->vsize is %d"
   2104             //        "\n",
   2105             //        cmdSize, sizeof(effect_param_t), p->psize, p->vsize );
   2106 
   2107             *(int *)pReplyData = android::Reverb_setParameter(pContext,
   2108                                                              (void *)p->data,
   2109                                                               p->data + p->psize,
   2110                                                               p->vsize);
   2111         } break;
   2112 
   2113         case EFFECT_CMD_ENABLE:
   2114             //ALOGV("\tReverb_command cmdCode Case: "
   2115             //        "EFFECT_CMD_ENABLE start");
   2116 
   2117             if (pReplyData == NULL || *replySize != sizeof(int)){
   2118                 ALOGV("\tLVM_ERROR : Reverb_command cmdCode Case: "
   2119                         "EFFECT_CMD_ENABLE: ERROR");
   2120                 return -EINVAL;
   2121             }
   2122             if(pContext->bEnabled == LVM_TRUE){
   2123                  ALOGV("\tLVM_ERROR : Reverb_command cmdCode Case: "
   2124                          "EFFECT_CMD_ENABLE: ERROR-Effect is already enabled");
   2125                  return -EINVAL;
   2126              }
   2127             *(int *)pReplyData = 0;
   2128             pContext->bEnabled = LVM_TRUE;
   2129             /* Get the current settings */
   2130             LvmStatus = LVREV_GetControlParameters(pContext->hInstance, &ActiveParams);
   2131             LVM_ERROR_CHECK(LvmStatus, "LVREV_GetControlParameters", "EFFECT_CMD_ENABLE")
   2132             pContext->SamplesToExitCount =
   2133                     (ActiveParams.T60 * pContext->config.inputCfg.samplingRate)/1000;
   2134             // force no volume ramp for first buffer processed after enabling the effect
   2135             pContext->volumeMode = android::REVERB_VOLUME_FLAT;
   2136             //ALOGV("\tEFFECT_CMD_ENABLE SamplesToExitCount = %d", pContext->SamplesToExitCount);
   2137             break;
   2138         case EFFECT_CMD_DISABLE:
   2139             //ALOGV("\tReverb_command cmdCode Case: "
   2140             //        "EFFECT_CMD_DISABLE start");
   2141 
   2142             if (pReplyData == NULL || *replySize != sizeof(int)){
   2143                 ALOGV("\tLVM_ERROR : Reverb_command cmdCode Case: "
   2144                         "EFFECT_CMD_DISABLE: ERROR");
   2145                 return -EINVAL;
   2146             }
   2147             if(pContext->bEnabled == LVM_FALSE){
   2148                  ALOGV("\tLVM_ERROR : Reverb_command cmdCode Case: "
   2149                          "EFFECT_CMD_DISABLE: ERROR-Effect is not yet enabled");
   2150                  return -EINVAL;
   2151              }
   2152             *(int *)pReplyData = 0;
   2153             pContext->bEnabled = LVM_FALSE;
   2154             break;
   2155 
   2156         case EFFECT_CMD_SET_VOLUME:
   2157             if (pCmdData == NULL ||
   2158                 cmdSize != 2 * sizeof(uint32_t)) {
   2159                 ALOGV("\tLVM_ERROR : Reverb_command cmdCode Case: "
   2160                         "EFFECT_CMD_SET_VOLUME: ERROR");
   2161                 return -EINVAL;
   2162             }
   2163 
   2164 
   2165             if (pReplyData != NULL) { // we have volume control
   2166                 pContext->leftVolume = (LVM_INT16)((*(uint32_t *)pCmdData + (1 << 11)) >> 12);
   2167                 pContext->rightVolume = (LVM_INT16)((*((uint32_t *)pCmdData + 1) + (1 << 11)) >> 12);
   2168                 *(uint32_t *)pReplyData = (1 << 24);
   2169                 *((uint32_t *)pReplyData + 1) = (1 << 24);
   2170                 if (pContext->volumeMode == android::REVERB_VOLUME_OFF) {
   2171                     // force no volume ramp for first buffer processed after getting volume control
   2172                     pContext->volumeMode = android::REVERB_VOLUME_FLAT;
   2173                 }
   2174             } else { // we don't have volume control
   2175                 pContext->leftVolume = REVERB_UNIT_VOLUME;
   2176                 pContext->rightVolume = REVERB_UNIT_VOLUME;
   2177                 pContext->volumeMode = android::REVERB_VOLUME_OFF;
   2178             }
   2179             ALOGV("EFFECT_CMD_SET_VOLUME left %d, right %d mode %d",
   2180                     pContext->leftVolume, pContext->rightVolume,  pContext->volumeMode);
   2181             break;
   2182 
   2183         case EFFECT_CMD_SET_DEVICE:
   2184         case EFFECT_CMD_SET_AUDIO_MODE:
   2185         //ALOGV("\tReverb_command cmdCode Case: "
   2186         //        "EFFECT_CMD_SET_DEVICE/EFFECT_CMD_SET_VOLUME/EFFECT_CMD_SET_AUDIO_MODE start");
   2187             break;
   2188 
   2189         default:
   2190             ALOGV("\tLVM_ERROR : Reverb_command cmdCode Case: "
   2191                     "DEFAULT start %d ERROR",cmdCode);
   2192             return -EINVAL;
   2193     }
   2194 
   2195     //ALOGV("\tReverb_command end\n\n");
   2196     return 0;
   2197 }    /* end Reverb_command */
   2198 
   2199 /* Effect Control Interface Implementation: get_descriptor */
   2200 int Reverb_getDescriptor(effect_handle_t   self,
   2201                                     effect_descriptor_t *pDescriptor)
   2202 {
   2203     android::ReverbContext * pContext = (android::ReverbContext *)self;
   2204     const effect_descriptor_t *desc;
   2205 
   2206     if (pContext == NULL || pDescriptor == NULL) {
   2207         ALOGV("Reverb_getDescriptor() invalid param");
   2208         return -EINVAL;
   2209     }
   2210 
   2211     if (pContext->auxiliary) {
   2212         if (pContext->preset) {
   2213             desc = &android::gAuxPresetReverbDescriptor;
   2214         } else {
   2215             desc = &android::gAuxEnvReverbDescriptor;
   2216         }
   2217     } else {
   2218         if (pContext->preset) {
   2219             desc = &android::gInsertPresetReverbDescriptor;
   2220         } else {
   2221             desc = &android::gInsertEnvReverbDescriptor;
   2222         }
   2223     }
   2224 
   2225     *pDescriptor = *desc;
   2226 
   2227     return 0;
   2228 }   /* end Reverb_getDescriptor */
   2229 
   2230 // effect_handle_t interface implementation for Reverb effect
   2231 const struct effect_interface_s gReverbInterface = {
   2232     Reverb_process,
   2233     Reverb_command,
   2234     Reverb_getDescriptor,
   2235     NULL,
   2236 };    /* end gReverbInterface */
   2237 
   2238 // This is the only symbol that needs to be exported
   2239 __attribute__ ((visibility ("default")))
   2240 audio_effect_library_t AUDIO_EFFECT_LIBRARY_INFO_SYM = {
   2241     .tag = AUDIO_EFFECT_LIBRARY_TAG,
   2242     .version = EFFECT_LIBRARY_API_VERSION,
   2243     .name = "Reverb Library",
   2244     .implementor = "NXP Software Ltd.",
   2245     .create_effect = android::EffectCreate,
   2246     .release_effect = android::EffectRelease,
   2247     .get_descriptor = android::EffectGetDescriptor,
   2248 };
   2249 
   2250 }
   2251