Qt 5.11 | Qt GUI | Hello Vulkan Texture Vulkan Example | hellovulkantexture.h Example File

Qt 5.11.3 Reference Documentation

# hellovulkantexture.h Example File

hellovulkantexture/hellovulkantexture.h

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      #include <QVulkanWindow>
      #include <QImage>

      class VulkanRenderer : public QVulkanWindowRenderer
      {
      public:
          VulkanRenderer(QVulkanWindow *w);

          void initResources() override;
          void initSwapChainResources() override;
          void releaseSwapChainResources() override;
          void releaseResources() override;

          void startNextFrame() override;

      private:
          VkShaderModule createShader(const QString &name);
          bool createTexture(const QString &name);
          bool createTextureImage(const QSize &size, VkImage *image, VkDeviceMemory *mem,
                                  VkImageTiling tiling, VkImageUsageFlags usage, uint32_t memIndex);
          bool writeLinearImage(const QImage &img, VkImage image, VkDeviceMemory memory);
          void ensureTexture();

          QVulkanWindow *m_window;
          QVulkanDeviceFunctions *m_devFuncs;

          VkDeviceMemory m_bufMem = VK_NULL_HANDLE;
          VkBuffer m_buf = VK_NULL_HANDLE;
          VkDescriptorBufferInfo m_uniformBufInfo[QVulkanWindow::MAX_CONCURRENT_FRAME_COUNT];

          VkDescriptorPool m_descPool = VK_NULL_HANDLE;
          VkDescriptorSetLayout m_descSetLayout = VK_NULL_HANDLE;
          VkDescriptorSet m_descSet[QVulkanWindow::MAX_CONCURRENT_FRAME_COUNT];

          VkPipelineCache m_pipelineCache = VK_NULL_HANDLE;
          VkPipelineLayout m_pipelineLayout = VK_NULL_HANDLE;
          VkPipeline m_pipeline = VK_NULL_HANDLE;

          VkSampler m_sampler = VK_NULL_HANDLE;
          VkImage m_texImage = VK_NULL_HANDLE;
          VkDeviceMemory m_texMem = VK_NULL_HANDLE;
          bool m_texLayoutPending = false;
          VkImageView m_texView = VK_NULL_HANDLE;
          VkImage m_texStaging = VK_NULL_HANDLE;
          VkDeviceMemory m_texStagingMem = VK_NULL_HANDLE;
          bool m_texStagingPending = false;
          QSize m_texSize;
          VkFormat m_texFormat;

          QMatrix4x4 m_proj;
          float m_rotation = 0.0f;
      };

      class VulkanWindow : public QVulkanWindow
      {
      public:
          QVulkanWindowRenderer *createRenderer() override;
      };