1 /*
2  * Copyright 2015 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef LIBVULKAN_LAYERS_EXTENSIONS_H
18 #define LIBVULKAN_LAYERS_EXTENSIONS_H 1
19 
20 #include <vulkan/vulkan.h>
21 
22 namespace vulkan {
23 namespace api {
24 
25 struct Layer;
26 
27 class LayerRef {
28    public:
29     LayerRef(const Layer* layer);
30     LayerRef(LayerRef&& other);
31     ~LayerRef();
32     LayerRef(const LayerRef&) = delete;
33     LayerRef& operator=(const LayerRef&) = delete;
34 
35     // provides bool-like behavior
36     operator const Layer*() const { return layer_; }
37 
38     PFN_vkGetInstanceProcAddr GetGetInstanceProcAddr() const;
39     PFN_vkGetDeviceProcAddr GetGetDeviceProcAddr() const;
40 
41    private:
42     const Layer* layer_;
43 };
44 
45 void DiscoverLayers();
46 
47 uint32_t GetLayerCount();
48 const Layer& GetLayer(uint32_t index);
49 const Layer* FindLayer(const char* name);
50 
51 const VkLayerProperties& GetLayerProperties(const Layer& layer);
52 bool IsLayerGlobal(const Layer& layer);
53 const VkExtensionProperties* GetLayerInstanceExtensions(const Layer& layer,
54                                                         uint32_t& count);
55 const VkExtensionProperties* GetLayerDeviceExtensions(const Layer& layer,
56                                                       uint32_t& count);
57 
58 const VkExtensionProperties* FindLayerInstanceExtension(const Layer& layer,
59                                                         const char* name);
60 const VkExtensionProperties* FindLayerDeviceExtension(const Layer& layer,
61                                                       const char* name);
62 
63 LayerRef GetLayerRef(const Layer& layer);
64 
65 }  // namespace api
66 }  // namespace vulkan
67 
68 #endif  // LIBVULKAN_LAYERS_EXTENSIONS_H
69