| // Copyright 2019 The Dawn Authors |
| // |
| // 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. |
| |
| #ifndef DAWNNATIVE_VULKAN_EXTERNALMEMORY_SERVICE_H_ |
| #define DAWNNATIVE_VULKAN_EXTERNALMEMORY_SERVICE_H_ |
| |
| #include "common/vulkan_platform.h" |
| #include "dawn_native/Error.h" |
| #include "dawn_native/VulkanBackend.h" |
| #include "dawn_native/vulkan/ExternalHandle.h" |
| |
| namespace dawn::native::vulkan { |
| class Device; |
| struct VulkanDeviceInfo; |
| } // namespace dawn::native::vulkan |
| |
| namespace dawn::native { namespace vulkan::external_memory { |
| |
| struct MemoryImportParams { |
| VkDeviceSize allocationSize; |
| uint32_t memoryTypeIndex; |
| }; |
| |
| class Service { |
| public: |
| explicit Service(Device* device); |
| ~Service(); |
| |
| static bool CheckSupport(const VulkanDeviceInfo& deviceInfo); |
| |
| // True if the device reports it supports importing external memory. |
| bool SupportsImportMemory(VkFormat format, |
| VkImageType type, |
| VkImageTiling tiling, |
| VkImageUsageFlags usage, |
| VkImageCreateFlags flags); |
| |
| // True if the device reports it supports creating VkImages from external memory. |
| bool SupportsCreateImage(const ExternalImageDescriptor* descriptor, |
| VkFormat format, |
| VkImageUsageFlags usage, |
| bool* supportsDisjoint); |
| |
| // Returns the parameters required for importing memory |
| ResultOrError<MemoryImportParams> GetMemoryImportParams( |
| const ExternalImageDescriptor* descriptor, |
| VkImage image); |
| |
| // Given an external handle pointing to memory, import it into a VkDeviceMemory |
| ResultOrError<VkDeviceMemory> ImportMemory(ExternalMemoryHandle handle, |
| const MemoryImportParams& importParams, |
| VkImage image); |
| |
| // Create a VkImage for the given handle type |
| ResultOrError<VkImage> CreateImage(const ExternalImageDescriptor* descriptor, |
| const VkImageCreateInfo& baseCreateInfo); |
| |
| private: |
| Device* mDevice = nullptr; |
| |
| // True if early checks pass that determine if the service is supported |
| bool mSupported = false; |
| }; |
| |
| }} // namespace dawn::native::vulkan::external_memory |
| |
| #endif // DAWNNATIVE_VULKAN_EXTERNALMEMORY_SERVICE_H_ |