1 /* 2 * Copyright 2016 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #ifndef GrVkExtensions_DEFINED 9 #define GrVkExtensions_DEFINED 10 11 #include "../private/SkTArray.h" 12 #include "SkString.h" 13 #include "vk/GrVkDefines.h" 14 15 /** 16 * This helper queries the Vulkan driver for available extensions and layers, remembers them, 17 * and can be queried. It supports queries for both instance and device extensions and layers. 18 */ 19 class SK_API GrVkExtensions { 20 public: 21 GrVkExtensions() : fInstanceExtensionStrings(new SkTArray<SkString>) 22 , fDeviceExtensionStrings(new SkTArray<SkString>) 23 , fInstanceLayerStrings(new SkTArray<SkString>) 24 , fDeviceLayerStrings(new SkTArray<SkString>) {} 25 26 bool initInstance(uint32_t specVersion); 27 bool initDevice(uint32_t specVersion, VkInstance, VkPhysicalDevice); 28 29 /** 30 * Queries whether an extension or layer is present. Will fail if not initialized. 31 */ 32 bool hasInstanceExtension(const char[]) const; 33 bool hasDeviceExtension(const char[]) const; 34 bool hasInstanceLayer(const char[]) const; 35 bool hasDeviceLayer(const char[]) const; 36 37 void print(const char* sep = "\n") const; 38 39 private: 40 std::unique_ptr<SkTArray<SkString>> fInstanceExtensionStrings; 41 std::unique_ptr<SkTArray<SkString>> fDeviceExtensionStrings; 42 std::unique_ptr<SkTArray<SkString>> fInstanceLayerStrings; 43 std::unique_ptr<SkTArray<SkString>> fDeviceLayerStrings; 44 }; 45 46 #endif 47
