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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 VulkanTestContext_DEFINED
#define VulkanTestContext_DEFINED
#ifdef SK_VULKAN
#include "GrTypes.h"
#include "vk/GrVkBackendContext.h"
class SkSurface;
class GrContext;
class VulkanTestContext {
public:
~VulkanTestContext();
// each platform will have to implement these in its CPP file
VkSurfaceKHR createVkSurface(void* platformData);
bool canPresent(uint32_t queueFamilyIndex);
static VulkanTestContext* Create(void* platformData, int msaaSampleCount) {
VulkanTestContext* ctx = new VulkanTestContext(platformData, msaaSampleCount);
if (!ctx->isValid()) {
delete ctx;
return nullptr;
}
return ctx;
}
SkSurface* getBackbufferSurface();
void swapBuffers();
bool makeCurrent() { return true; }
int getStencilBits() { return 0; }
int getSampleCount() { return 0; }
bool isValid() { return SkToBool(fBackendContext.get()); }
void resize(uint32_t w, uint32_t h) {
this->createSwapchain(w, h);
}
GrBackendContext getBackendContext() { return (GrBackendContext)fBackendContext.get(); }
private:
VulkanTestContext();
VulkanTestContext(void*, int msaaSampleCount);
void initializeContext(void*);
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);
void createBuffers();
void destroyBuffers();
SkAutoTUnref<const GrVkBackendContext> fBackendContext;
GrContext* fContext;
VkSurfaceKHR fSurface;
VkSwapchainKHR fSwapchain;
uint32_t fPresentQueueIndex;
VkQueue fPresentQueue;
int fWidth;
int fHeight;
GrPixelConfig fPixelConfig;
uint32_t fImageCount;
VkImage* fImages; // images in the swapchain
VkImageLayout* fImageLayouts; // layouts of these images when not color attachment
sk_sp<SkSurface>* fSurfaces; // wrapped surface for those images
VkCommandPool fCommandPool;
BackbufferInfo* fBackbuffers;
uint32_t fCurrentBackbufferIndex;
};
#endif // SK_VULKAN
#endif
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