src/Vulkan/VkInstance.hpp

   1 // Copyright 2018 The SwiftShader Authors. All Rights Reserved.
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //    http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 #ifndef VK_INSTANCE_HPP_
  16 #define VK_INSTANCE_HPP_
  17
  18 #include "VkObject.hpp"
  19
  20 namespace vk
  21 {
  22
  23 class Instance
  24 {
  25 public:
  26         struct CreateInfo
  27         {
  28                 const VkInstanceCreateInfo* pCreateInfo;
  29                 VkPhysicalDevice pPhysicalDevice;
  30         };
  31
  32         static constexpr VkSystemAllocationScope GetAllocationScope() { return VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE; }
  33
  34         Instance(const CreateInfo* pCreateInfo, void* mem);
  35         void destroy(const VkAllocationCallbacks* pAllocator);
  36
  37         static size_t ComputeRequiredAllocationSize(const CreateInfo*) { return 0; }
  38
  39         uint32_t getPhysicalDeviceCount() const;
  40         void getPhysicalDevices(uint32_t pPhysicalDeviceCount, VkPhysicalDevice* pPhysicalDevices) const;
  41         uint32_t getPhysicalDeviceGroupCount() const;
  42         void getPhysicalDeviceGroups(uint32_t pPhysicalDeviceGroupCount,
  43                                  VkPhysicalDeviceGroupProperties* pPhysicalDeviceGroupProperties) const;
  44 private:
  45         uint32_t physicalDeviceCount = 0;
  46         VkPhysicalDevice physicalDevice = VK_NULL_HANDLE;
  47         uint32_t physicalDeviceGroupCount = 1;
  48 };
  49
  50 using DispatchableInstance = DispatchableObject<Instance, VkInstance>;
  51
  52 static inline Instance* Cast(VkInstance object)
  53 {
  54         return DispatchableInstance::Cast(object);
  55 }
  56
  57 } // namespace vk
  58
  59 #endif // VK_INSTANCE_HPP_