032aaae5be
Change-Id: I437a4a0a58bf70ea1b8b0659b099a2af2bfa64fe Reviewed-on: https://skia-review.googlesource.com/116197 Commit-Queue: Brian Salomon <bsalomon@google.com> Reviewed-by: Greg Daniel <egdaniel@google.com>
119 lines
4.2 KiB
C++
119 lines
4.2 KiB
C++
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/*
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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 VulkanWindowContext_DEFINED
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#define VulkanWindowContext_DEFINED
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#include "SkTypes.h" // required to pull in any SkUserConfig defines
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#ifdef SK_VULKAN
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#include "vk/GrVkBackendContext.h"
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#include "WindowContext.h"
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class GrRenderTarget;
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namespace sk_app {
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class VulkanWindowContext : public WindowContext {
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public:
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~VulkanWindowContext() override;
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sk_sp<SkSurface> getBackbufferSurface() override;
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void swapBuffers() override;
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bool isValid() override { return SkToBool(fBackendContext.get()); }
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void resize(int w, int h) override {
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this->createSwapchain(w, h, fDisplayParams);
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}
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void setDisplayParams(const DisplayParams& params) override {
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this->destroyContext();
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fDisplayParams = params;
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this->initializeContext();
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}
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/** Platform specific function that creates a VkSurfaceKHR for a window */
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using CreateVkSurfaceFn = std::function<VkSurfaceKHR(VkInstance)>;
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/** Platform specific function that determines whether presentation will succeed. */
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using CanPresentFn = GrVkBackendContext::CanPresentFn;
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VulkanWindowContext(const DisplayParams&, CreateVkSurfaceFn, CanPresentFn,
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PFN_vkGetInstanceProcAddr, PFN_vkGetDeviceProcAddr);
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private:
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void initializeContext();
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void destroyContext();
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struct BackbufferInfo {
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uint32_t fImageIndex; // image this is associated with
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VkSemaphore fAcquireSemaphore; // we signal on this for acquisition of image
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VkSemaphore fRenderSemaphore; // we wait on this for rendering to be done
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VkCommandBuffer fTransitionCmdBuffers[2]; // to transition layout between present and render
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VkFence fUsageFences[2]; // used to ensure this data is no longer used on GPU
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};
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BackbufferInfo* getAvailableBackbuffer();
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bool createSwapchain(int width, int height, const DisplayParams& params);
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void createBuffers(VkFormat format, SkColorType colorType);
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void destroyBuffers();
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sk_sp<const GrVkBackendContext> fBackendContext;
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// simple wrapper class that exists only to initialize a pointer to NULL
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template <typename FNPTR_TYPE> class VkPtr {
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public:
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VkPtr() : fPtr(NULL) {}
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VkPtr operator=(FNPTR_TYPE ptr) { fPtr = ptr; return *this; }
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operator FNPTR_TYPE() const { return fPtr; }
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private:
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FNPTR_TYPE fPtr;
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};
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// Create functions
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CreateVkSurfaceFn fCreateVkSurfaceFn;
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CanPresentFn fCanPresentFn;
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// Vulkan GetProcAddr functions
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VkPtr<PFN_vkGetInstanceProcAddr> fGetInstanceProcAddr;
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VkPtr<PFN_vkGetDeviceProcAddr> fGetDeviceProcAddr;
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// WSI interface functions
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VkPtr<PFN_vkDestroySurfaceKHR> fDestroySurfaceKHR;
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VkPtr<PFN_vkGetPhysicalDeviceSurfaceSupportKHR> fGetPhysicalDeviceSurfaceSupportKHR;
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VkPtr<PFN_vkGetPhysicalDeviceSurfaceCapabilitiesKHR> fGetPhysicalDeviceSurfaceCapabilitiesKHR;
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VkPtr<PFN_vkGetPhysicalDeviceSurfaceFormatsKHR> fGetPhysicalDeviceSurfaceFormatsKHR;
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VkPtr<PFN_vkGetPhysicalDeviceSurfacePresentModesKHR> fGetPhysicalDeviceSurfacePresentModesKHR;
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VkPtr<PFN_vkCreateSwapchainKHR> fCreateSwapchainKHR;
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VkPtr<PFN_vkDestroySwapchainKHR> fDestroySwapchainKHR;
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VkPtr<PFN_vkGetSwapchainImagesKHR> fGetSwapchainImagesKHR;
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VkPtr<PFN_vkAcquireNextImageKHR> fAcquireNextImageKHR;
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VkPtr<PFN_vkQueuePresentKHR> fQueuePresentKHR;
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VkPtr<PFN_vkGetDeviceQueue> fGetDeviceQueue;
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VkSurfaceKHR fSurface;
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VkSwapchainKHR fSwapchain;
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uint32_t fPresentQueueIndex;
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VkQueue fPresentQueue;
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uint32_t fImageCount;
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VkImage* fImages; // images in the swapchain
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VkImageLayout* fImageLayouts; // layouts of these images when not color attachment
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sk_sp<SkSurface>* fSurfaces; // surfaces client renders to (may not be based on rts)
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VkCommandPool fCommandPool;
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BackbufferInfo* fBackbuffers;
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uint32_t fCurrentBackbufferIndex;
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};
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} // namespace sk_app
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#endif // SK_VULKAN
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#endif
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