// The VkBackendContext contains all of the base Vk objects needed by the skia Vulkan context. struct SK_API VulkanBackendContext {
VkInstance fInstance = VK_NULL_HANDLE;
VkPhysicalDevice fPhysicalDevice = VK_NULL_HANDLE;
VkDevice fDevice = VK_NULL_HANDLE;
VkQueue fQueue = VK_NULL_HANDLE;
uint32_t fGraphicsQueueIndex = 0; // The max api version set here should match the value set in VkApplicationInfo::apiVersion when // then VkInstance was created.
uint32_t fMaxAPIVersion = 0; const skgpu::VulkanExtensions* fVkExtensions = nullptr; // The client can create their VkDevice with either a VkPhysicalDeviceFeatures or // VkPhysicalDeviceFeatures2 struct, thus we have to support taking both. The // VkPhysicalDeviceFeatures2 struct is needed so we know if the client enabled any extension // specific features. If fDeviceFeatures2 is not null then we ignore fDeviceFeatures. If both // fDeviceFeatures and fDeviceFeatures2 are null we will assume no features are enabled. const VkPhysicalDeviceFeatures* fDeviceFeatures = nullptr; const VkPhysicalDeviceFeatures2* fDeviceFeatures2 = nullptr; // Optional. The client may provide an inplementation of a VulkanMemoryAllocator for Skia to use // for allocating Vulkan resources that use VkDeviceMemory.
sk_sp<VulkanMemoryAllocator> fMemoryAllocator;
skgpu::VulkanGetProc fGetProc; Protected fProtectedContext = Protected::kNo; // Optional callback which will be invoked if a VK_ERROR_DEVICE_LOST error code is received from // the driver. Debug information from the driver will be provided to the callback if the // VK_EXT_device_fault extension is supported and enabled (VkPhysicalDeviceFaultFeaturesEXT must // be in the pNext chain of VkDeviceCreateInfo).
skgpu::VulkanDeviceLostContext fDeviceLostContext = nullptr;
skgpu::VulkanDeviceLostProc fDeviceLostProc = nullptr;
};
} // namespace skgpu
#endif// skgpu_VulkanBackendContext_DEFINED
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