| /* |
| * Copyright (C) 2009 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "TIOMXPlugin.h" |
| |
| #include <dlfcn.h> |
| |
| #include <HardwareAPI.h> |
| |
| namespace android { |
| |
| extern "C" OMXPluginBase *createOMXPlugin() { |
| return new TIOMXPlugin; |
| } |
| |
| extern "C" void destroyOMXPlugin(OMXPluginBase *plugin) { |
| delete plugin; |
| } |
| |
| #define LIBOMX "libOMX_Core.so" |
| |
| TIOMXPlugin::TIOMXPlugin() |
| : mLibHandle(dlopen(LIBOMX, RTLD_NOW)), |
| mInit(NULL), |
| mDeinit(NULL), |
| mComponentNameEnum(NULL), |
| mGetHandle(NULL), |
| mFreeHandle(NULL), |
| mGetRolesOfComponentHandle(NULL) { |
| if (mLibHandle != NULL) { |
| mInit = (InitFunc)dlsym(mLibHandle, "TIOMX_Init"); |
| mDeinit = (DeinitFunc)dlsym(mLibHandle, "TIOMX_Deinit"); |
| |
| mComponentNameEnum = |
| (ComponentNameEnumFunc)dlsym(mLibHandle, "TIOMX_ComponentNameEnum"); |
| |
| mGetHandle = (GetHandleFunc)dlsym(mLibHandle, "TIOMX_GetHandle"); |
| mFreeHandle = (FreeHandleFunc)dlsym(mLibHandle, "TIOMX_FreeHandle"); |
| |
| mGetRolesOfComponentHandle = |
| (GetRolesOfComponentFunc)dlsym( |
| mLibHandle, "TIOMX_GetRolesOfComponent"); |
| |
| (*mInit)(); |
| } |
| else |
| ALOGE("%s: failed to load %s", __func__, LIBOMX); |
| } |
| |
| TIOMXPlugin::~TIOMXPlugin() { |
| if (mLibHandle != NULL) { |
| (*mDeinit)(); |
| |
| dlclose(mLibHandle); |
| mLibHandle = NULL; |
| } |
| } |
| |
| OMX_ERRORTYPE TIOMXPlugin::makeComponentInstance( |
| const char *name, |
| const OMX_CALLBACKTYPE *callbacks, |
| OMX_PTR appData, |
| OMX_COMPONENTTYPE **component) { |
| if (mLibHandle == NULL) { |
| return OMX_ErrorUndefined; |
| } |
| |
| return (*mGetHandle)( |
| reinterpret_cast<OMX_HANDLETYPE *>(component), |
| const_cast<char *>(name), |
| appData, const_cast<OMX_CALLBACKTYPE *>(callbacks)); |
| } |
| |
| OMX_ERRORTYPE TIOMXPlugin::destroyComponentInstance( |
| OMX_COMPONENTTYPE *component) { |
| if (mLibHandle == NULL) { |
| return OMX_ErrorUndefined; |
| } |
| |
| return (*mFreeHandle)(reinterpret_cast<OMX_HANDLETYPE *>(component)); |
| } |
| |
| OMX_ERRORTYPE TIOMXPlugin::enumerateComponents( |
| OMX_STRING name, |
| size_t size, |
| OMX_U32 index) { |
| if (mLibHandle == NULL) { |
| ALOGE("mLibHandle is NULL!"); |
| return OMX_ErrorUndefined; |
| } |
| |
| return (*mComponentNameEnum)(name, size, index); |
| } |
| |
| OMX_ERRORTYPE TIOMXPlugin::getRolesOfComponent( |
| const char *name, |
| Vector<String8> *roles) { |
| roles->clear(); |
| |
| if (mLibHandle == NULL) { |
| return OMX_ErrorUndefined; |
| } |
| |
| OMX_U32 numRoles; |
| OMX_ERRORTYPE err = (*mGetRolesOfComponentHandle)( |
| const_cast<OMX_STRING>(name), &numRoles, NULL); |
| |
| if (err != OMX_ErrorNone) { |
| return err; |
| } |
| |
| if (numRoles > 0) { |
| OMX_U8 **array = new OMX_U8 *[numRoles]; |
| for (OMX_U32 i = 0; i < numRoles; ++i) { |
| array[i] = new OMX_U8[OMX_MAX_STRINGNAME_SIZE]; |
| } |
| |
| err = (*mGetRolesOfComponentHandle)( |
| const_cast<OMX_STRING>(name), &numRoles, array); |
| |
| for (OMX_U32 i = 0; i < numRoles; ++i) { |
| if (err == OMX_ErrorNone) { |
| String8 s((const char *)array[i]); |
| roles->push(s); |
| } |
| |
| delete[] array[i]; |
| array[i] = NULL; |
| } |
| |
| delete[] array; |
| array = NULL; |
| } |
| |
| return err; |
| } |
| |
| } // namespace android |