QVulkanWindow

QVulkanWindow 

#include <QVulkanWindow>

 

Public Functions

	QVulkanWindow(QWindow *parent = nullptr)
virtual	~QVulkanWindow()
int	availablePhysicalDevices()
QMatrix4x4	clipCorrectionMatrix()
int	colorFormat() const
int	concurrentFrameCount() const
virtual QVulkanWindowRenderer *	createRenderer()
int	currentCommandBuffer() const
int	currentFrame() const
int	currentFramebuffer() const
int	currentSwapChainImageIndex() const
int	defaultRenderPass() const
int	depthStencilFormat() const
VkImage	depthStencilImage() const
VkImageView	depthStencilImageView() const
int	device() const
uint32_t	deviceLocalMemoryIndex() const
QVulkanWindow::Flags	flags() const
void	frameReady()
QImage	grab()
int	graphicsCommandPool() const
int	graphicsQueue() const
uint32_t	hostVisibleMemoryIndex() const
bool	isValid() const
VkImage	msaaColorImage(int idx) const
VkImageView	msaaColorImageView(int idx) const
int	physicalDevice() const
const int *	physicalDeviceProperties() const
int	sampleCountFlagBits() const
void	setDeviceExtensions(const QByteArrayList &extensions)
void	setFlags(QVulkanWindow::Flags flags)
void	setPhysicalDeviceIndex(int idx)
void	setPreferredColorFormats(const int &formats)
void	setSampleCount(int sampleCount)
QVulkanInfoVector<QVulkanExtension>	supportedDeviceExtensions()
QVector<int>	supportedSampleCounts()
bool	supportsGrab() const
VkImage	swapChainImage(int idx) const
int	swapChainImageCount() const
QSize	swapChainImageSize() const
VkImageView	swapChainImageView(int idx) const

 

 

 

 

 

案例；

 

class VulkanRenderer : public QVulkanWindowRenderer
  {
  public:
      VulkanRenderer(QVulkanWindow *w) : m_window(w) { }

      void initResources() override
      {
          m_devFuncs = m_window->vulkanInstance()->deviceFunctions(m_window->device());
          
      }
      void initSwapChainResources() override { ... }
      void releaseSwapChainResources() override { ... }
      void releaseResources() override { ... }

      void startNextFrame() override
      {
          VkCommandBuffer cmdBuf = m_window->currentCommandBuffer();
          
          m_devFuncs->vkCmdBeginRenderPass(...);
          
          m_window->frameReady();
      }

  private:
      QVulkanWindow *m_window;
      QVulkanDeviceFunctions *m_devFuncs;
  };

  class VulkanWindow : public QVulkanWindow
  {
  public:
      QVulkanWindowRenderer *createRenderer() override {
          return new VulkanRenderer(this);
      }
  };

  int main(int argc, char *argv[])
  {
      QGuiApplication app(argc, argv);

      QVulkanInstance inst;
      // enable the standard validation layers, when available
      inst.setLayers(QByteArrayList() << "VK_LAYER_LUNARG_standard_validation");
      if (!inst.create())
          qFatal("Failed to create Vulkan instance: %d", inst.errorCode());

      VulkanWindow w;
      w.setVulkanInstance(&inst);
      w.showMaximized();

      return app.exec();
  }

 

 

 

 

 

 

 

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