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/*
* 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
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