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- /*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #ifndef GrVkBackendContext_DEFINED
- #define GrVkBackendContext_DEFINED
- #include "include/core/SkRefCnt.h"
- #include "include/gpu/vk/GrVkMemoryAllocator.h"
- #include "include/gpu/vk/GrVkTypes.h"
- class GrVkExtensions;
- enum GrVkExtensionFlags {
- kEXT_debug_report_GrVkExtensionFlag = 0x0001,
- kNV_glsl_shader_GrVkExtensionFlag = 0x0002,
- kKHR_surface_GrVkExtensionFlag = 0x0004,
- kKHR_swapchain_GrVkExtensionFlag = 0x0008,
- kKHR_win32_surface_GrVkExtensionFlag = 0x0010,
- kKHR_android_surface_GrVkExtensionFlag = 0x0020,
- kKHR_xcb_surface_GrVkExtensionFlag = 0x0040,
- };
- enum GrVkFeatureFlags {
- kGeometryShader_GrVkFeatureFlag = 0x0001,
- kDualSrcBlend_GrVkFeatureFlag = 0x0002,
- kSampleRateShading_GrVkFeatureFlag = 0x0004,
- };
- // It is not guarenteed VkPhysicalDeviceProperties2 will be in the client's header so we forward
- // declare it here to be safe.
- struct VkPhysicalDeviceFeatures2;
- // The BackendContext contains all of the base Vulkan objects needed by the GrVkGpu. The assumption
- // is that the client will set these up and pass them to the GrVkGpu constructor. The VkDevice
- // created must support at least one graphics queue, which is passed in as well.
- // The QueueFamilyIndex must match the family of the given queue. It is needed for CommandPool
- // creation, and any GrBackendObjects handed to us (e.g., for wrapped textures) needs to be created
- // in or transitioned to that family. The refs held by members of this struct must be released
- // (either by deleting the struct or manually releasing the refs) before the underlying vulkan
- // device and instance are destroyed.
- struct SK_API GrVkBackendContext {
- VkInstance fInstance;
- VkPhysicalDevice fPhysicalDevice;
- VkDevice fDevice;
- VkQueue fQueue;
- uint32_t fGraphicsQueueIndex;
- uint32_t fMinAPIVersion; // Deprecated. Set fInstanceVersion instead.
- uint32_t fInstanceVersion = 0; // Deprecated. Set fMaxApiVersion instead
- // The max api version set here should match the value set in VkApplicationInfo::apiVersion when
- // then VkInstance was created.
- uint32_t fMaxAPIVersion = 0;
- uint32_t fExtensions = 0; // Deprecated. Use fVkExtensions instead.
- const GrVkExtensions* fVkExtensions = nullptr;
- uint32_t fFeatures; // Deprecated. Use fDeviceFeatures[2] instead.
- // 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;
- sk_sp<GrVkMemoryAllocator> fMemoryAllocator;
- GrVkGetProc fGetProc = nullptr;
- // This is deprecated and should be set to false. The client is responsible for managing the
- // lifetime of the VkInstance and VkDevice objects.
- bool fOwnsInstanceAndDevice = false;
- // Indicates that we are working with protected content and all CommandPool and Queue operations
- // should be done in a protected context.
- GrProtected fProtectedContext = GrProtected::kNo;
- };
- #endif
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