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77 lines
3.8 KiB
77 lines
3.8 KiB
/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef GrVkBackendContext_DEFINED
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#define GrVkBackendContext_DEFINED
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#include "include/core/SkRefCnt.h"
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#include "include/gpu/vk/GrVkMemoryAllocator.h"
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#include "include/gpu/vk/GrVkTypes.h"
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class GrVkExtensions;
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enum GrVkExtensionFlags {
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kEXT_debug_report_GrVkExtensionFlag = 0x0001,
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kNV_glsl_shader_GrVkExtensionFlag = 0x0002,
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kKHR_surface_GrVkExtensionFlag = 0x0004,
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kKHR_swapchain_GrVkExtensionFlag = 0x0008,
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kKHR_win32_surface_GrVkExtensionFlag = 0x0010,
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kKHR_android_surface_GrVkExtensionFlag = 0x0020,
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kKHR_xcb_surface_GrVkExtensionFlag = 0x0040,
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};
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enum GrVkFeatureFlags {
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kGeometryShader_GrVkFeatureFlag = 0x0001,
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kDualSrcBlend_GrVkFeatureFlag = 0x0002,
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kSampleRateShading_GrVkFeatureFlag = 0x0004,
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};
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// It is not guarenteed VkPhysicalDeviceProperties2 will be in the client's header so we forward
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// declare it here to be safe.
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struct VkPhysicalDeviceFeatures2;
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// The BackendContext contains all of the base Vulkan objects needed by the GrVkGpu. The assumption
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// is that the client will set these up and pass them to the GrVkGpu constructor. The VkDevice
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// created must support at least one graphics queue, which is passed in as well.
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// The QueueFamilyIndex must match the family of the given queue. It is needed for CommandPool
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// creation, and any GrBackendObjects handed to us (e.g., for wrapped textures) needs to be created
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// in or transitioned to that family. The refs held by members of this struct must be released
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// (either by deleting the struct or manually releasing the refs) before the underlying vulkan
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// device and instance are destroyed.
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struct SK_API GrVkBackendContext {
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VkInstance fInstance;
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VkPhysicalDevice fPhysicalDevice;
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VkDevice fDevice;
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VkQueue fQueue;
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uint32_t fGraphicsQueueIndex;
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uint32_t fMinAPIVersion; // Deprecated. Set fInstanceVersion instead.
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uint32_t fInstanceVersion = 0; // Deprecated. Set fMaxApiVersion instead
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// The max api version set here should match the value set in VkApplicationInfo::apiVersion when
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// then VkInstance was created.
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uint32_t fMaxAPIVersion = 0;
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uint32_t fExtensions = 0; // Deprecated. Use fVkExtensions instead.
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const GrVkExtensions* fVkExtensions = nullptr;
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uint32_t fFeatures; // Deprecated. Use fDeviceFeatures[2] instead.
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// The client can create their VkDevice with either a VkPhysicalDeviceFeatures or
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// VkPhysicalDeviceFeatures2 struct, thus we have to support taking both. The
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// VkPhysicalDeviceFeatures2 struct is needed so we know if the client enabled any extension
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// specific features. If fDeviceFeatures2 is not null then we ignore fDeviceFeatures. If both
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// fDeviceFeatures and fDeviceFeatures2 are null we will assume no features are enabled.
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const VkPhysicalDeviceFeatures* fDeviceFeatures = nullptr;
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const VkPhysicalDeviceFeatures2* fDeviceFeatures2 = nullptr;
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sk_sp<GrVkMemoryAllocator> fMemoryAllocator;
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GrVkGetProc fGetProc = nullptr;
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// This is deprecated and should be set to false. The client is responsible for managing the
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// lifetime of the VkInstance and VkDevice objects.
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bool fOwnsInstanceAndDevice = false;
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// Indicates that we are working with protected content and all CommandPool and Queue operations
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// should be done in a protected context.
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GrProtected fProtectedContext = GrProtected::kNo;
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};
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#endif
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