5db010bfb5
This also now requires an explicit vulkan proc address getter to be used with GrVkBackendContext::Create. Change-Id: I768ec487398dab68e6e10409419ac7a00ec1822a Reviewed-on: https://skia-review.googlesource.com/14322 Reviewed-by: Greg Daniel <egdaniel@google.com> Commit-Queue: Brian Salomon <bsalomon@google.com>
93 lines
3.9 KiB
C++
93 lines
3.9 KiB
C++
/*
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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 "SkRefCnt.h"
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#include "vk/GrVkDefines.h"
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#include "vk/GrVkInterface.h"
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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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// 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) need to be created
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// in or transitioned to that family.
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struct GrVkBackendContext : public SkRefCnt {
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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;
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uint32_t fExtensions;
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uint32_t fFeatures;
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sk_sp<const GrVkInterface> fInterface;
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/**
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* Controls whether this object destroys the instance and device upon destruction. The default
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* is temporarily 'true' to avoid breaking existing clients but will be changed to 'false'.
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*/
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bool fOwnsInstanceAndDevice = true;
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using CanPresentFn = std::function<bool(VkInstance, VkPhysicalDevice,
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uint32_t queueFamilyIndex)>;
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/**
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* Helper function to create the Vulkan objects needed for a Vulkan-backed GrContext.
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* Note that the version that uses the unified "GetProc" instead of separate "GetInstanceProc"
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* and "GetDeviceProc" functions will be removed.
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*
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* If presentQueueIndex is non-NULL, will try to set up presentQueue as part of device
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* creation using the platform-specific canPresent() function.
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*
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* This will set fOwnsInstanceAndDevice to 'true'. If it is subsequently set to 'false' then
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* the client owns the lifetime of the created VkDevice and VkInstance.
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*/
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static const GrVkBackendContext* Create(uint32_t* presentQueueIndex = nullptr,
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CanPresentFn = CanPresentFn(),
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GrVkInterface::GetProc getProc = nullptr);
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static const GrVkBackendContext* Create(const GrVkInterface::GetInstanceProc& getInstanceProc,
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const GrVkInterface::GetDeviceProc& getDeviceProc,
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uint32_t* presentQueueIndex = nullptr,
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CanPresentFn canPresent = CanPresentFn()) {
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if (!getInstanceProc || !getDeviceProc) {
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return nullptr;
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}
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auto getProc = [&getInstanceProc, &getDeviceProc](const char* proc_name,
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VkInstance instance, VkDevice device) {
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if (device != VK_NULL_HANDLE) {
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return getDeviceProc(device, proc_name);
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}
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return getInstanceProc(instance, proc_name);
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};
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return Create(presentQueueIndex, canPresent, getProc);
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}
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~GrVkBackendContext() override;
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};
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#endif
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