93 lines
2.7 KiB
C
93 lines
2.7 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 VulkanTestContext_DEFINED
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#define VulkanTestContext_DEFINED
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#ifdef SK_VULKAN
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#include "GrTypes.h"
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#include "vk/GrVkBackendContext.h"
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class SkSurface;
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class GrContext;
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class VulkanTestContext {
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public:
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~VulkanTestContext();
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// each platform will have to implement these in its CPP file
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VkSurfaceKHR createVkSurface(void* platformData);
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bool canPresent(uint32_t queueFamilyIndex);
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static VulkanTestContext* Create(void* platformData, int msaaSampleCount) {
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VulkanTestContext* ctx = new VulkanTestContext(platformData, msaaSampleCount);
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if (!ctx->isValid()) {
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delete ctx;
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return nullptr;
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}
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return ctx;
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}
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SkSurface* getBackbufferSurface();
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void swapBuffers();
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bool makeCurrent() { return true; }
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int getStencilBits() { return 0; }
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int getSampleCount() { return 0; }
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bool isValid() { return SkToBool(fBackendContext.get()); }
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void resize() {
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this->createSwapchain(0, 0);
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}
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GrBackendContext getBackendContext() { return (GrBackendContext)fBackendContext.get(); }
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private:
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VulkanTestContext();
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VulkanTestContext(void*, int msaaSampleCount);
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void initializeContext(void*);
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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(uint32_t width, uint32_t height);
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void createBuffers();
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void destroyBuffers();
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SkAutoTUnref<const GrVkBackendContext> fBackendContext;
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GrContext* fContext;
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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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int fWidth;
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int fHeight;
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GrPixelConfig fPixelConfig;
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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; // wrapped surface for those images
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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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#endif // SK_VULKAN
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#endif
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