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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 VulkanWindowContext_DEFINED
#define VulkanWindowContext_DEFINED
#include "SkTypes.h" // required to pull in any SkUserConfig defines
#ifdef SK_VULKAN
#include "vk/GrVkVulkan.h"
#include "vk/GrVkBackendContext.h"
#include "vk/GrVkInterface.h"
#include "vk/VkTestUtils.h"
#include "WindowContext.h"
class GrRenderTarget;
namespace sk_app {
class VulkanWindowContext : public WindowContext {
~VulkanWindowContext() override;
sk_sp<SkSurface> getBackbufferSurface() override;
void swapBuffers() override;
bool isValid() override { return fDevice != VK_NULL_HANDLE; }
void resize(int w, int h) override {
this->createSwapchain(w, h, fDisplayParams);
void setDisplayParams(const DisplayParams& params) override {
fDisplayParams = params;
/** Platform specific function that creates a VkSurfaceKHR for a window */
using CreateVkSurfaceFn = std::function<VkSurfaceKHR(VkInstance)>;
/** Platform specific function that determines whether presentation will succeed. */
using CanPresentFn = sk_gpu_test::CanPresentFn;
VulkanWindowContext(const DisplayParams&, CreateVkSurfaceFn, CanPresentFn,
PFN_vkGetInstanceProcAddr, PFN_vkGetDeviceProcAddr);
void initializeContext();
void destroyContext();
struct BackbufferInfo {
uint32_t fImageIndex; // image this is associated with
VkSemaphore fAcquireSemaphore; // we signal on this for acquisition of image
VkSemaphore fRenderSemaphore; // we wait on this for rendering to be done
VkCommandBuffer fTransitionCmdBuffers[2]; // to transition layout between present and render
VkFence fUsageFences[2]; // used to ensure this data is no longer used on GPU
BackbufferInfo* getAvailableBackbuffer();
bool createSwapchain(int width, int height, const DisplayParams& params);
void createBuffers(VkFormat format, SkColorType colorType);
void destroyBuffers();
VkInstance fInstance = VK_NULL_HANDLE;
VkPhysicalDevice fPhysicalDevice = VK_NULL_HANDLE;
VkDevice fDevice = VK_NULL_HANDLE;
VkDebugReportCallbackEXT fDebugCallback = VK_NULL_HANDLE;
// Create functions
CreateVkSurfaceFn fCreateVkSurfaceFn;
CanPresentFn fCanPresentFn;
// Vulkan GetProcAddr functions
PFN_vkGetInstanceProcAddr fGetInstanceProcAddr = nullptr;
PFN_vkGetDeviceProcAddr fGetDeviceProcAddr = nullptr;
// WSI interface functions
PFN_vkDestroySurfaceKHR fDestroySurfaceKHR = nullptr;
PFN_vkGetPhysicalDeviceSurfaceSupportKHR fGetPhysicalDeviceSurfaceSupportKHR = nullptr;
PFN_vkGetPhysicalDeviceSurfaceCapabilitiesKHR fGetPhysicalDeviceSurfaceCapabilitiesKHR =nullptr;
PFN_vkGetPhysicalDeviceSurfaceFormatsKHR fGetPhysicalDeviceSurfaceFormatsKHR = nullptr;
PFN_vkGetPhysicalDeviceSurfacePresentModesKHR fGetPhysicalDeviceSurfacePresentModesKHR =nullptr;
PFN_vkCreateSwapchainKHR fCreateSwapchainKHR = nullptr;
PFN_vkDestroySwapchainKHR fDestroySwapchainKHR = nullptr;
PFN_vkGetSwapchainImagesKHR fGetSwapchainImagesKHR = nullptr;
PFN_vkAcquireNextImageKHR fAcquireNextImageKHR = nullptr;
PFN_vkQueuePresentKHR fQueuePresentKHR = nullptr;
PFN_vkDestroyInstance fDestroyInstance = nullptr;
PFN_vkDeviceWaitIdle fDeviceWaitIdle = nullptr;
PFN_vkDestroyDebugReportCallbackEXT fDestroyDebugReportCallbackEXT = nullptr;
PFN_vkQueueWaitIdle fQueueWaitIdle = nullptr;
PFN_vkDestroyDevice fDestroyDevice = nullptr;
PFN_vkGetDeviceQueue fGetDeviceQueue = nullptr;
sk_sp<const GrVkInterface> fInterface;
VkSurfaceKHR fSurface;
VkSwapchainKHR fSwapchain;
uint32_t fGraphicsQueueIndex;
VkQueue fGraphicsQueue;
uint32_t fPresentQueueIndex;
VkQueue fPresentQueue;
uint32_t fImageCount;
VkImage* fImages; // images in the swapchain
VkImageLayout* fImageLayouts; // layouts of these images when not color attachment
sk_sp<SkSurface>* fSurfaces; // surfaces client renders to (may not be based on rts)
VkCommandPool fCommandPool;
BackbufferInfo* fBackbuffers;
uint32_t fCurrentBackbufferIndex;
} // namespace sk_app
#endif // SK_VULKAN