1/*Copyright (c) 2012, The Linux Foundation. All rights reserved.
2
3Redistribution and use in source and binary forms, with or without
4modification, are permitted provided that the following conditions are
5met:
6    * Redistributions of source code must retain the above copyright
7      notice, this list of conditions and the following disclaimer.
8    * Redistributions in binary form must reproduce the above
9      copyright notice, this list of conditions and the following
10      disclaimer in the documentation and/or other materials provided
11      with the distribution.
12    * Neither the name of The Linux Foundation nor the names of its
13      contributors may be used to endorse or promote products derived
14      from this software without specific prior written permission.
15
16THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
17WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
19ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
20BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
23BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
25OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
26IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.*/
27
28#ifndef QOMX_CORE_H
29#define QOMX_CORE_H
30
31#include <stdio.h>
32#include <unistd.h>
33#include <malloc.h>
34#include <pthread.h>
35#include <dlfcn.h>
36#include <stdlib.h>
37#include "OMX_Component.h"
38
39#define TRUE 1
40#define FALSE 0
41#define OMX_COMP_MAX_INSTANCES 3
42#define OMX_CORE_MAX_ROLES 1
43#define OMX_COMP_MAX_NUM 3
44#define OMX_SPEC_VERSION 0x00000101
45
46typedef void *(*get_instance_t)(void);
47typedef void *(*create_comp_func_t)(OMX_PTR aobj);
48
49/** comp_info_t: Structure containing the mapping
50*    between the library name and the corresponding .so name
51*    @comp_name: name of the component
52     @lib_name: Name of the .so library
53**/
54typedef struct comp_info_t {
55  char *comp_name;
56  char *lib_name;
57} comp_info_t;
58
59/** omx_core_component_t: OMX Component structure
60*    @handle: array of number of instances of the component
61*    @roles: array of roles played by the component
62*    @comp_info: Component information such as libname,
63*              component name
64*    @open: Is the component active
65*    @lib_handle: Library handle after dlopen
66*    @obj_ptr: Function ptr to get the instance of the component
67*    @comp_func_ptr: Function ptr to map the functions in the
68*     OMX handle to its respective function implementation in
69*     the component
70**/
71typedef struct _omx_core_component_t {
72  OMX_HANDLETYPE *handle[OMX_COMP_MAX_INSTANCES];  //Instance handle
73  char *roles[OMX_CORE_MAX_ROLES];  //Roles played by the component
74  char *name;  //Component Name
75  uint8_t open;  //Is component active
76  void *lib_handle;
77  get_instance_t get_instance;
78  create_comp_func_t create_comp_func;
79  char *comp_name;
80  char *lib_name;
81} omx_core_component_t;
82
83/** omx_core_t: Global structure that contains all the active
84*   components
85*    @component: array of active components
86*    @is_initialized: Flag to check if the OMX core has been
87*    initialized
88*    @core_lock: Lock to syncronize the omx core operations
89**/
90typedef struct _omx_core_t {
91  omx_core_component_t component[OMX_COMP_MAX_NUM];  //Array of pointers to components
92  int comp_cnt;
93  pthread_mutex_t core_lock;
94} omx_core_t;
95
96#endif
97