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/*
* cmodule.h, component module interface class
*
* Copyright (c) 2009-2010 Wind River Systems, Inc.
*
* 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.
*/
#ifndef __CMODULE_H
#define __CMODULE_H
#include <module.h>
/*
* WRS OMX-IL Component Module Symbol
*/
#define WRS_OMXIL_CMODULE_SYMBOL WRS_OMXIL_CMODULE
#define WRS_OMXIL_CMODULE_SYMBOL_STRING "WRS_OMXIL_CMODULE"
struct wrs_omxil_cmodule_ops_s {
OMX_ERRORTYPE (*instantiate)(OMX_PTR *);
};
struct wrs_omxil_cmodule_s {
const char *name;
const char **roles;
const int nr_roles;
struct wrs_omxil_cmodule_ops_s *ops;
};
class ComponentBase;
class CModule {
public:
CModule(const OMX_STRING lname);
~CModule();
/*
* library loading / unloading
*/
OMX_ERRORTYPE Load(int flag);
OMX_U32 Unload(void);
/* end of library loading / unloading */
/*
* accessor
*/
/* library name */
OMX_STRING GetLibraryName(void);
/* component name and roles */
OMX_STRING GetComponentName(void);
OMX_ERRORTYPE GetComponentRoles(OMX_U32 *nr_roles, OMX_U8 **roles);
bool QueryHavingThisRole(const OMX_STRING role);
/* end of accessor */
/* library symbol method and helpers */
OMX_ERRORTYPE QueryComponentNameAndRoles(void);
OMX_ERRORTYPE InstantiateComponent(ComponentBase **instance);
/* end of library symbol method and helpers */
private:
/*
* library symbol
*/
struct wrs_omxil_cmodule_s *wrs_omxil_cmodule;
/* end of library symbol */
/* component name */
char cname[OMX_MAX_STRINGNAME_SIZE];
/* component roles */
OMX_U8 **roles;
OMX_U32 nr_roles;
/* library name */
char lname[OMX_MAX_STRINGNAME_SIZE];
/* utils::module */
struct module *module;
};
#endif /* __CMODULE_H */
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