1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
// Copyright (c) 2017 The Khronos Group Inc.
// Copyright (c) 2017 Valve Corporation
// Copyright (c) 2017 LunarG, 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.
//
// Author: Mark Young <marky@lunarg.com>
//
#pragma once
#include <openxr/openxr.h>
#include <memory>
#include <string>
#include <vector>
#include <unordered_map>
namespace Json {
class Value;
}
enum ManifestFileType {
MANIFEST_TYPE_UNDEFINED = 0,
MANIFEST_TYPE_RUNTIME,
MANIFEST_TYPE_IMPLICIT_API_LAYER,
MANIFEST_TYPE_EXPLICIT_API_LAYER,
};
struct JsonVersion {
uint32_t major;
uint32_t minor;
uint32_t patch;
};
struct ExtensionListing {
std::string name;
uint32_t extension_version;
std::vector<std::string> entrypoints;
};
// ManifestFile class -
// Base class responsible for finding and parsing manifest files.
class ManifestFile {
public:
ManifestFile(ManifestFileType type, const std::string &filename, const std::string &library_path);
virtual ~ManifestFile();
static bool IsValidJson(const Json::Value &root, JsonVersion &version);
// We don't want any copy constructors
ManifestFile &operator=(const ManifestFile &manifest_file) = delete;
ManifestFileType Type() { return _type; }
std::string Filename() { return _filename; }
std::string LibraryPath() { return _library_path; }
void GetInstanceExtensionProperties(std::vector<XrExtensionProperties> &props);
void GetDeviceExtensionProperties(std::vector<XrExtensionProperties> &props);
const std::string &GetFunctionName(const std::string &func_name);
protected:
std::string _filename;
ManifestFileType _type;
std::string _library_path;
std::vector<ExtensionListing> _instance_extensions;
std::vector<ExtensionListing> _device_extensions;
std::unordered_map<std::string, std::string> _functions_renamed;
};
// RuntimeManifestFile class -
// Responsible for finding and parsing Runtime-specific manifest files.
class RuntimeManifestFile : public ManifestFile {
public:
// Factory method
static XrResult FindManifestFiles(ManifestFileType type, std::vector<std::unique_ptr<RuntimeManifestFile>> &manifest_files);
RuntimeManifestFile(const std::string &filename, const std::string &library_path);
~RuntimeManifestFile() override;
static void CreateIfValid(const std::string &filename, std::vector<std::unique_ptr<RuntimeManifestFile>> &manifest_files);
// Non-copyable
RuntimeManifestFile(const RuntimeManifestFile &) = delete;
RuntimeManifestFile &operator=(const RuntimeManifestFile &) = delete;
};
// ApiLayerManifestFile class -
// Responsible for finding and parsing API Layer-specific manifest files.
class ApiLayerManifestFile : public ManifestFile {
public:
// Factory method
static XrResult FindManifestFiles(ManifestFileType type, std::vector<std::unique_ptr<ApiLayerManifestFile>> &manifest_files);
ApiLayerManifestFile(ManifestFileType type, const std::string &filename, const std::string &layer_name,
const std::string &description, const JsonVersion &api_version, const uint32_t &implementation_version,
const std::string &library_path);
~ApiLayerManifestFile() override;
static void CreateIfValid(ManifestFileType type, const std::string &filename,
std::vector<std::unique_ptr<ApiLayerManifestFile>> &manifest_files);
std::string LayerName() { return _layer_name; }
XrApiLayerProperties GetApiLayerProperties();
// Non-copyable
ApiLayerManifestFile(const ApiLayerManifestFile &) = delete;
ApiLayerManifestFile &operator=(const ApiLayerManifestFile &) = delete;
private:
JsonVersion _api_version;
std::string _layer_name;
std::string _description;
uint32_t _implementation_version;
};
|
