Method ApplyFramebuffer

libs/drape/vulkan/vulkan_base_context.cpp:317–515

}

void VulkanBaseContext::ApplyFramebuffer(std::string const & framebufferLabel)
{
  vkCmdSetStencilReference(m_renderingCommandBuffers[m_inflightFrameIndex], VK_STENCIL_FRONT_AND_BACK,
                           m_stencilReferenceValue);

  // Calculate attachment operations.
  auto attachmentsOp = GetAttachmensOperations();
  if (m_currentFramebuffer == nullptr)
  {
    attachmentsOp.m_color.m_loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
    attachmentsOp.m_depth.m_loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
    attachmentsOp.m_stencil.m_loadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
    attachmentsOp.m_stencil.m_storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
  }
  auto const packedAttachmentOperations = PackAttachmentsOperations(attachmentsOp);

  // Destroy data associated with current framebuffer if bound attachments operations
  // are changed.
  auto const ops = m_framebuffersData[m_currentFramebuffer].m_packedAttachmentOperations;
  if (ops != packedAttachmentOperations)
  {
    vkDeviceWaitIdle(m_device);
    DestroyRenderPassAndFramebuffer(m_currentFramebuffer);
  }

  // Initialize render pass.
  auto & fbData = m_framebuffersData[m_currentFramebuffer];
  if (fbData.m_renderPass == VK_NULL_HANDLE)
  {
    VkFormat colorFormat = {};
    VkFormat depthFormat = {};

    if (m_currentFramebuffer == nullptr)
    {
      colorFormat = m_surfaceFormat->format;
      depthFormat = VulkanFormatUnpacker::Unpack(TextureFormat::Depth);

      fbData.m_packedAttachmentOperations = packedAttachmentOperations;
      fbData.m_renderPass =
          CreateRenderPass(2 /* attachmentsCount */, attachmentsOp, colorFormat, VK_IMAGE_LAYOUT_UNDEFINED,
                           VK_IMAGE_LAYOUT_PRESENT_SRC_KHR, depthFormat, VK_IMAGE_LAYOUT_UNDEFINED,
                           VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL);
    }
    else
    {
      ref_ptr<dp::Framebuffer> framebuffer = m_currentFramebuffer;
      auto const depthStencilRef = framebuffer->GetDepthStencilRef();
      auto const attachmentsCount = (depthStencilRef != nullptr) ? 2 : 1;
      colorFormat = VulkanFormatUnpacker::Unpack(framebuffer->GetTexture()->GetFormat());
      VkImageLayout initialDepthStencilLayout = VK_IMAGE_LAYOUT_UNDEFINED;
      if (depthStencilRef != nullptr)
      {
        depthFormat = VulkanFormatUnpacker::Unpack(depthStencilRef->GetTexture()->GetFormat());
        ASSERT(dynamic_cast<VulkanTexture *>(depthStencilRef->GetTexture()->GetHardwareTexture().get()) != nullptr, ());
        ref_ptr<VulkanTexture> depthStencilAttachment = depthStencilRef->GetTexture()->GetHardwareTexture();
        initialDepthStencilLayout = depthStencilAttachment->GetCurrentLayout();
      }