blob: 8617603041a9ba904f9fc8fc0febfb25784ea423 [file] [log] [blame]
* 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 "GrVkTypes.h"
#include "SkRefCnt.h"
#include "vk/GrVkMemoryAllocator.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 either 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.
VkPhysicalDeviceFeatures* fDeviceFeatures = nullptr;
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;