Method FillWithDiscardPattern

renderdoc/driver/vulkan/vk_debug.cpp:2171–2633

}

void VulkanDebugManager::FillWithDiscardPattern(VkCommandBuffer cmd, DiscardType type,
                                                VkImage image, VkImageLayout curLayout,
                                                VkImageSubresourceRange discardRange,
                                                VkRect2D discardRect)
{
  // State tracking will not be accurate during loading
  if(IsLoading(m_pDriver->m_State))
    return;

  VkDevice dev = m_Device;
  const VkDevDispatchTable *vt = ObjDisp(dev);
  const VulkanCreationInfo::Image &imInfo = GetImageInfo(GetResID(image));

  VkMarkerRegion marker(
      cmd, StringFormat::Fmt("FillWithDiscardPattern %s", ToStr(GetResID(image)).c_str()));

  const VkImageAspectFlags imAspects = FormatImageAspects(imInfo.format);

  VkImageSubresourceRange barrierDiscardRange = discardRange;
  barrierDiscardRange.aspectMask = imAspects;

  if(imInfo.samples > 1)
  {
    WrappedVulkan *driver = m_pDriver;

    // MSAA requires a graphics queue
    if((driver->GetCommandType() & VK_QUEUE_GRAPHICS_BIT) == 0)
      return;

    bool depth = false;
    if(IsDepthOrStencilFormat(imInfo.format))
      depth = true;

    rdcpair<VkFormat, VkSampleCountFlagBits> key = {imInfo.format, imInfo.samples};

    DiscardPassData &passdata = m_DiscardPipes[key];

    // create and cache a pipeline and RP that writes to this format and sample count
    if(passdata.pso[0] == VK_NULL_HANDLE)
    {
      BuiltinShaderBaseType baseType = BuiltinShaderBaseType::Float;

      if(IsSIntFormat(imInfo.format))
        baseType = BuiltinShaderBaseType::SInt;
      else if(IsUIntFormat(imInfo.format))
        baseType = BuiltinShaderBaseType::UInt;

      VkAttachmentReference attRef = {
          0,
          depth ? VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL
                : VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
      };

      VkAttachmentDescription attDesc = {
          0,
          imInfo.format,
          imInfo.samples,
          VK_ATTACHMENT_LOAD_OP_LOAD,