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/*
* Copyright 2022 Google LLC
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef skgpu_VulkanBackendContext_DEFINED
#define skgpu_VulkanBackendContext_DEFINED
#include "include/core/SkRefCnt.h"
#include "include/gpu/GpuTypes.h"
#include "include/gpu/vk/VulkanMemoryAllocator.h"
#include "include/gpu/vk/VulkanTypes.h"
#include "include/private/base/SkAPI.h"
#include "include/private/gpu/vk/SkiaVulkan.h"
#include <cstdint>
namespace skgpu {
class VulkanExtensions;
// 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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