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      1 /*
      2  * Copyright (C) 2009 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef TI_OMX_PLUGIN_H_
     18 
     19 #define TI_OMX_PLUGIN_H_
     20 
     21 #include <OMXPluginBase.h>
     22 
     23 namespace android {
     24 
     25 struct TIOMXPlugin : public OMXPluginBase {
     26     TIOMXPlugin();
     27     virtual ~TIOMXPlugin();
     28 
     29     virtual OMX_ERRORTYPE makeComponentInstance(
     30             const char *name,
     31             const OMX_CALLBACKTYPE *callbacks,
     32             OMX_PTR appData,
     33             OMX_COMPONENTTYPE **component);
     34 
     35     virtual OMX_ERRORTYPE destroyComponentInstance(
     36             OMX_COMPONENTTYPE *component);
     37 
     38     virtual OMX_ERRORTYPE enumerateComponents(
     39             OMX_STRING name,
     40             size_t size,
     41             OMX_U32 index);
     42 
     43     virtual OMX_ERRORTYPE getRolesOfComponent(
     44             const char *name,
     45             Vector<String8> *roles);
     46 
     47 private:
     48     void *mLibHandle;
     49 
     50     typedef OMX_ERRORTYPE (*InitFunc)();
     51     typedef OMX_ERRORTYPE (*DeinitFunc)();
     52     typedef OMX_ERRORTYPE (*ComponentNameEnumFunc)(
     53             OMX_STRING, OMX_U32, OMX_U32);
     54 
     55     typedef OMX_ERRORTYPE (*GetHandleFunc)(
     56             OMX_HANDLETYPE *, OMX_STRING, OMX_PTR, OMX_CALLBACKTYPE *);
     57 
     58     typedef OMX_ERRORTYPE (*FreeHandleFunc)(OMX_HANDLETYPE *);
     59 
     60     typedef OMX_ERRORTYPE (*GetRolesOfComponentFunc)(
     61             OMX_STRING, OMX_U32 *, OMX_U8 **);
     62 
     63     InitFunc mInit;
     64     DeinitFunc mDeinit;
     65     ComponentNameEnumFunc mComponentNameEnum;
     66     GetHandleFunc mGetHandle;
     67     FreeHandleFunc mFreeHandle;
     68     GetRolesOfComponentFunc mGetRolesOfComponentHandle;
     69 
     70     TIOMXPlugin(const TIOMXPlugin &);
     71     TIOMXPlugin &operator=(const TIOMXPlugin &);
     72 };
     73 
     74 }  // namespace android
     75 
     76 #endif  // TI_OMX_PLUGIN_H_
     77