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      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     explicit LayerRef(const Layer* layer);
     30     LayerRef(LayerRef&& other) noexcept;
     31     ~LayerRef();
     32     LayerRef(const LayerRef&) = delete;
     33     LayerRef& operator=(const LayerRef&) = delete;
     34 
     35     // provides bool-like behavior
     36     // NOLINTNEXTLINE(google-explicit-constructor)
     37     operator const Layer*() const { return layer_; }
     38 
     39     PFN_vkGetInstanceProcAddr GetGetInstanceProcAddr() const;
     40     PFN_vkGetDeviceProcAddr GetGetDeviceProcAddr() const;
     41 
     42    private:
     43     const Layer* layer_;
     44 };
     45 
     46 void DiscoverLayers();
     47 
     48 uint32_t GetLayerCount();
     49 const Layer& GetLayer(uint32_t index);
     50 const Layer* FindLayer(const char* name);
     51 
     52 const VkLayerProperties& GetLayerProperties(const Layer& layer);
     53 bool IsLayerGlobal(const Layer& layer);
     54 const VkExtensionProperties* GetLayerInstanceExtensions(const Layer& layer,
     55                                                         uint32_t& count);
     56 const VkExtensionProperties* GetLayerDeviceExtensions(const Layer& layer,
     57                                                       uint32_t& count);
     58 
     59 const VkExtensionProperties* FindLayerInstanceExtension(const Layer& layer,
     60                                                         const char* name);
     61 const VkExtensionProperties* FindLayerDeviceExtension(const Layer& layer,
     62                                                       const char* name);
     63 
     64 LayerRef GetLayerRef(const Layer& layer);
     65 
     66 }  // namespace api
     67 }  // namespace vulkan
     68 
     69 #endif  // LIBVULKAN_LAYERS_EXTENSIONS_H
     70