BeginFrame()

void Spices::VulkanRenderBackend::BeginFrame

(

FrameInfo &

frameInfo

)

Start record a new frame with vulkan render backend.

Parameters

[in]

frameInfo

FrameInfo.

Wait for last frame done.

Reset Fences.

Prepare Writing another SwapchainImage.

Confine whether swapchain need recreated.

Instance a VkCommandBufferBeginInfo.

Start recording a Graphic CommandBuffer.

Start recording a Graphic CommandBuffer.

Checkpoint of start primary commandBuffers.

Wait for last frame done.

Reset Fences.

Prepare Writing another SwapchainImage.

Confine whether swapchain need recreated.

Instance a VkCommandBufferBeginInfo.

Start recording a Graphic CommandBuffer.

Start recording a Graphic CommandBuffer.

Checkpoint of start primary commandBuffers.

Definition at line 211 of file VulkanRenderBackend.cpp.

    {
        SPICES_PROFILE_ZONE;
 
        VkFence fence[2] = { m_VulkanState.m_ComputeFence[frameInfo.m_FrameIndex], m_VulkanState.m_GraphicFence[frameInfo.m_FrameIndex] };
 
        {
            SPICES_PROFILE_ZONEN("BeginFrame::WaitForFences");
            
            VK_CHECK(vkWaitForFences(m_VulkanState.m_Device, 2, fence, VK_TRUE, UINT64_MAX))
        }
 
        {
            SPICES_PROFILE_ZONEN("BeginFrame::ResetFences");
            
            VK_CHECK(vkResetFences(m_VulkanState.m_Device, 2, fence))
        }
        
        const VkResult result = vkAcquireNextImageKHR(
            m_VulkanState.m_Device                                        , 
            m_VulkanState.m_SwapChain                                     , 
            UINT64_MAX                                                    , 
            m_VulkanState.m_GraphicImageSemaphore[frameInfo.m_FrameIndex] ,   // Signal Semaphore.
            VK_NULL_HANDLE                                                , 
            &frameInfo.m_ImageIndex
        );
 
        if (result == VK_ERROR_OUT_OF_DATE_KHR) 
        {
            RecreateSwapChain();
        }
        else if (result != VK_SUCCESS && result != VK_SUBOPTIMAL_KHR) 
        {
            SPICES_CORE_ERROR("Failed to acquire swap chain image!")
        }
 
        {
            SPICES_PROFILE_ZONEN("StartFrame::Suspend Delay ThreadPool");
 
            ThreadModel::Get()->GetGameThreadPool()->Suspend();
        }
 
        {
            SPICES_PROFILE_ZONEN("StartFrame::Free Parallel CommandBuffer");
 
            ThreadModel::Get()->GetRHIThreadPool()->FreeParallelCommandBuffers(frameInfo.m_FrameIndex);
        }
 
        {
            SPICES_PROFILE_ZONEN("StartFrame::NsightPerfFrameStart0");
 
            NSIGHTPERF_GPUPROFILERREPORT_BEGINFRAME(m_VulkanState.m_GraphicQueue, m_VulkanState.m_GraphicQueueFamily)
            NSIGHTPERF_GPUPROFILERCONTINUOUS_BEGINFRAME(m_VulkanState)
        }
 
        {
            SPICES_PROFILE_ZONEN("BeginFrame::BeginCommandBuffer");
            
            VkCommandBufferBeginInfo     beginInfo{};
            beginInfo.sType            = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
            beginInfo.flags            = VK_COMMAND_BUFFER_USAGE_SIMULTANEOUS_USE_BIT;
            beginInfo.pInheritanceInfo = nullptr;
 
            VK_CHECK(vkBeginCommandBuffer(m_VulkanState.m_ComputeCommandBuffer[frameInfo.m_FrameIndex], &beginInfo))
 
            
            beginInfo.flags           |= VK_COMMAND_BUFFER_USAGE_RENDER_PASS_CONTINUE_BIT;
            VK_CHECK(vkBeginCommandBuffer(m_VulkanState.m_GraphicCommandBuffer[frameInfo.m_FrameIndex], &beginInfo))
 
            
            NSIGHTAFTERMATH_GPUCRASHTRACKER_SETCHECKPOINT(m_VulkanState.m_GraphicCommandBuffer[frameInfo.m_FrameIndex], m_VulkanState.m_VkFunc, "BeginPrimaryComputeCommandBuffer")
            NSIGHTAFTERMATH_GPUCRASHTRACKER_SETCHECKPOINT(m_VulkanState.m_GraphicCommandBuffer[frameInfo.m_FrameIndex], m_VulkanState.m_VkFunc, "BeginPrimaryGraphicCommandBuffer")
        }
 
        {
            SPICES_PROFILE_ZONEN("StartFrame::NsightPerfFrameStart1");
 
            NSIGHTPERF_GPUPROFILERONESHOT_BEGINFRAME(m_VulkanState, m_VulkanState.m_GraphicCommandBuffer[frameInfo.m_FrameIndex])
            NSIGHTPERF_GPUPROFILERONESHOT_BEGINRANGE(m_VulkanState.m_GraphicCommandBuffer[frameInfo.m_FrameIndex], "Frame", 0, frameInfo.m_FrameIndex)
        }
    }

References Spices::FrameInfo::m_FrameIndex, Spices::VulkanState::m_GraphicQueueFamily, m_VulkanState, and RecreateSwapChain().