| |
| /* |
| * 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 |
| |
| #ifdef SK_VULKAN |
| |
| #include "vk/GrVkBackendContext.h" |
| #include "WindowContext.h" |
| |
| class GrRenderTarget; |
| |
| namespace sk_app { |
| |
| class VulkanWindowContext : public WindowContext { |
| public: |
| ~VulkanWindowContext() override; |
| |
| // each platform will have to implement these in its CPP file |
| static VkSurfaceKHR createVkSurface(VkInstance, void* platformData); |
| static bool canPresent(VkInstance, VkPhysicalDevice, uint32_t queueFamilyIndex); |
| |
| static VulkanWindowContext* Create(void* platformData, const DisplayParams& params) { |
| VulkanWindowContext* ctx = new VulkanWindowContext(platformData, params); |
| if (!ctx->isValid()) { |
| delete ctx; |
| return nullptr; |
| } |
| return ctx; |
| } |
| |
| sk_sp<SkSurface> getBackbufferSurface() override; |
| void swapBuffers() override; |
| |
| bool isValid() override { return SkToBool(fBackendContext.get()); } |
| |
| void resize(uint32_t w, uint32_t h) override { |
| this->createSwapchain(w, h, fDisplayParams); |
| } |
| |
| void setDisplayParams(const DisplayParams& params) override { |
| this->createSwapchain(fWidth, fHeight, params); |
| } |
| |
| GrBackendContext getBackendContext() override { |
| return (GrBackendContext) fBackendContext.get(); |
| } |
| |
| private: |
| VulkanWindowContext(void*, const DisplayParams&); |
| void initializeContext(void*, const DisplayParams&); |
| 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(uint32_t width, uint32_t height, const DisplayParams& params); |
| void createBuffers(VkFormat format); |
| void destroyBuffers(); |
| |
| SkAutoTUnref<const GrVkBackendContext> fBackendContext; |
| |
| // simple wrapper class that exists only to initialize a pointer to NULL |
| template <typename FNPTR_TYPE> class VkPtr { |
| public: |
| VkPtr() : fPtr(NULL) {} |
| VkPtr operator=(FNPTR_TYPE ptr) { fPtr = ptr; return *this; } |
| operator FNPTR_TYPE() const { return fPtr; } |
| private: |
| FNPTR_TYPE fPtr; |
| }; |
| |
| // WSI interface functions |
| VkPtr<PFN_vkDestroySurfaceKHR> fDestroySurfaceKHR; |
| VkPtr<PFN_vkGetPhysicalDeviceSurfaceSupportKHR> fGetPhysicalDeviceSurfaceSupportKHR; |
| VkPtr<PFN_vkGetPhysicalDeviceSurfaceCapabilitiesKHR> fGetPhysicalDeviceSurfaceCapabilitiesKHR; |
| VkPtr<PFN_vkGetPhysicalDeviceSurfaceFormatsKHR> fGetPhysicalDeviceSurfaceFormatsKHR; |
| VkPtr<PFN_vkGetPhysicalDeviceSurfacePresentModesKHR> fGetPhysicalDeviceSurfacePresentModesKHR; |
| |
| VkPtr<PFN_vkCreateSwapchainKHR> fCreateSwapchainKHR; |
| VkPtr<PFN_vkDestroySwapchainKHR> fDestroySwapchainKHR; |
| VkPtr<PFN_vkGetSwapchainImagesKHR> fGetSwapchainImagesKHR; |
| VkPtr<PFN_vkAcquireNextImageKHR> fAcquireNextImageKHR; |
| VkPtr<PFN_vkQueuePresentKHR> fQueuePresentKHR; |
| VkPtr<PFN_vkCreateSharedSwapchainsKHR> fCreateSharedSwapchainsKHR; |
| |
| VkSurfaceKHR fSurface; |
| VkSwapchainKHR fSwapchain; |
| uint32_t fPresentQueueIndex; |
| VkQueue fPresentQueue; |
| int fWidth; |
| int fHeight; |
| |
| uint32_t fImageCount; |
| VkImage* fImages; // images in the swapchain |
| VkImageLayout* fImageLayouts; // layouts of these images when not color attachment |
| sk_sp<GrRenderTarget>* fRenderTargets; // wrapped rendertargets for those images |
| 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 |
| |
| #endif |