1 /*
2 * dynamic_analyzer_loader.cpp - dynamic analyzer loader
3 *
4 * Copyright (c) 2015 Intel Corporation
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 *
18 * Author: Wind Yuan <feng.yuan@intel.com>
19 * Zong Wei <wei.zong@intel.com>
20 */
21
22 #include "dynamic_analyzer_loader.h"
23 #include "dynamic_analyzer.h"
24 #include "handler_interface.h"
25 #include <dlfcn.h>
26
27 namespace XCam {
28
DynamicAnalyzerLoader(const char * lib_path,const char * symbol)29 DynamicAnalyzerLoader::DynamicAnalyzerLoader (const char *lib_path, const char *symbol)
30 : AnalyzerLoader (lib_path, symbol)
31 {
32 }
33
~DynamicAnalyzerLoader()34 DynamicAnalyzerLoader::~DynamicAnalyzerLoader ()
35 {
36 }
37
38 SmartPtr<X3aAnalyzer>
load_analyzer(SmartPtr<AnalyzerLoader> & self)39 DynamicAnalyzerLoader::load_analyzer (SmartPtr<AnalyzerLoader> &self)
40 {
41 XCAM_ASSERT (self.ptr () == this);
42
43 SmartPtr<X3aAnalyzer> analyzer;
44 XCam3ADescription *desc = (XCam3ADescription*)load_library (get_lib_path ());
45
46 analyzer = new DynamicAnalyzer (desc, self);
47 if (!analyzer.ptr ()) {
48 XCAM_LOG_WARNING ("create DynamicAnalyzer from lib failed");
49 close_handle ();
50 return NULL;
51 }
52
53 XCAM_LOG_INFO ("analyzer(%s) created from 3a lib", XCAM_STR (analyzer->get_name()));
54 return analyzer;
55 }
56
57 void *
load_symbol(void * handle)58 DynamicAnalyzerLoader::load_symbol (void* handle)
59 {
60 XCam3ADescription *desc = NULL;
61
62 desc = (XCam3ADescription *)AnalyzerLoader::get_symbol (handle);
63 if (!desc) {
64 XCAM_LOG_DEBUG ("get symbol failed from lib");
65 return NULL;
66 }
67 if (desc->version < xcam_version ()) {
68 XCAM_LOG_DEBUG ("get symbolfailed. version is:0x%04x, but expect:0x%04x",
69 desc->version, xcam_version ());
70 return NULL;
71 }
72 if (desc->size < sizeof (XCam3ADescription)) {
73 XCAM_LOG_DEBUG ("get symbol failed, XCam3ADescription size is:%" PRIu32 ", but expect:%" PRIuS,
74 desc->size, sizeof (XCam3ADescription));
75 return NULL;
76 }
77
78 if (!desc->create_context || !desc->destroy_context ||
79 !desc->configure_3a || !desc->set_3a_stats ||
80 !desc->analyze_awb || !desc->analyze_ae ||
81 !desc->analyze_af || !desc->combine_analyze_results ||
82 !desc->free_results) {
83 XCAM_LOG_DEBUG ("some functions in symbol not set from lib");
84 return NULL;
85 }
86 return (void*)desc;
87 }
88
89 };
90