overby.me
this repo has no description
1/*
2This file is part of Darling.
3
4Copyright (C) 2020 Lubos Dolezel
5
6Darling is free software: you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation, either version 3 of the License, or
9(at your option) any later version.
10
11Darling is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with Darling. If not, see <http://www.gnu.org/licenses/>.
18*/
19
20#ifndef _AT_AUDIO_COMPONENT_MANAGER_H
21#define _AT_AUDIO_COMPONENT_MANAGER_H
22#include <AudioToolbox/AudioComponent.h>
23#include <CoreFoundation/CFBundle.h>
24#include <mutex>
25#include <unordered_map>
26#include <stdint.h>
27#include <string>
28#include <memory>
29#include <vector>
30
31class __attribute__((visibility("hidden"))) AudioComponentManager
32{
33private:
34 AudioComponentManager();
35 void discoverComponents();
36 void discoverComponents(const char* dir);
37 void analyzeComponent(CFBundleRef bundle);
38
39 static CFBundleRef bundleFromPath(const char* path);
40
41 struct RegisteredComponent
42 {
43 AudioComponent id;
44 AudioComponentDescription desc;
45 std::string name;
46 uint32_t version;
47 AudioComponentFactoryFunction factory;
48 AudioComponentFlags flags = 0;
49
50 CFBundleRef loadedBundle = nullptr;
51 std::string bundlePath, entryPointName;
52
53 int instances = 0;
54 };
55
56 RegisteredComponent* getById(AudioComponent component);
57public:
58 static AudioComponentManager* instance();
59 // Returns true if it looks like an instance managed by this class.
60 // False means it is probably managed by the Carbon Component Manager.
61 static bool isOurInstance(AudioComponentInstance instance);
62 static bool isOurInstance(AudioComponent component);
63
64 AudioComponent registerComponent(const AudioComponentDescription* desc, const char* name,
65 uint32_t version, AudioComponentFactoryFunction factory);
66 AudioComponent registerComponent(const AudioComponentDescription* desc, const char* name,
67 uint32_t version, const char* bundlePath, const char* entryPointName, AudioComponentFlags flags);
68
69 OSStatus instantiate(AudioComponent c, AudioComponentInstance* out);
70 OSStatus dispose(AudioComponentInstance instance);
71
72 AudioComponentPlugInInterface* instanceInterface(AudioComponentInstance instance);
73
74 std::vector<AudioComponent> findMatching(const AudioComponentDescription* cd);
75
76 OSStatus getDescription(AudioComponent c, AudioComponentDescription* out);
77 OSStatus getName(AudioComponent c, const char** name);
78 OSStatus getVersion(AudioComponent c, uint32_t* version);
79
80 AudioComponent getComponent(AudioComponentInstance instance);
81private:
82
83 std::unordered_map<AudioComponent, RegisteredComponent> m_components;
84 uint32_t m_nextComponentId = 0x4000 | 0x80000000;
85 std::recursive_mutex m_componentsMutex;
86
87 struct ComponentInstanceData
88 {
89 AudioComponent component;
90 AudioComponentPlugInInterface* object;
91 };
92
93 std::unordered_map<AudioComponentInstance, ComponentInstanceData> m_componentInstances;
94 uint32_t m_nextComponentInstanceId = 0x1000 | 0x80000000;
95 std::recursive_mutex m_componentInstancesMutex;
96};
97
98#endif