Method HandleDxgkQueueSubmit

PresentData/PresentMonTraceConsumer.cpp:504–569

}

void PMTraceConsumer::HandleDxgkQueueSubmit(
    EVENT_HEADER const& hdr,
    uint64_t hContext,
    uint32_t submitSequence,
    uint32_t packetType,
    bool isPresentPacket,
    bool isWin7)
{
    // Track GPU execution
    if (mTrackGPU) {
        bool isWaitPacket = packetType == (uint32_t) Microsoft_Windows_DxgKrnl::QueuePacketType::DXGKETW_WAIT_COMMAND_BUFFER;
        mGpuTrace.EnqueueQueuePacket(hContext, submitSequence, hdr.ProcessId, hdr.TimeStamp.QuadPart, isWaitPacket);
    }

    // For blt presents on Win7, the only way to distinguish between DWM-off
    // fullscreen blts and the DWM-on blt to redirection bitmaps is to track
    // whether a PHT was submitted before submitting anything else to the same
    // context, which indicates it's a redirected blt.  If we get to here
    // instead, the present is a fullscreen blt and considered completed once
    // its work is done.
    if (isWin7) {
        auto eventIter = mPresentByDxgkContext.find(hContext);
        if (eventIter != mPresentByDxgkContext.end()) {
            auto present = eventIter->second;

            if (present->PresentMode == PresentMode::Hardware_Legacy_Copy_To_Front_Buffer) {
                VerboseTraceBeforeModifyingPresent(present.get());
                present->SeenDxgkPresent = true;

                // If the work is already done, complete it now.
                if (HasScreenTime(present)) {
                    CompletePresent(present);
                }
            }

            // We're done with DxgkContext tracking, if the present hasn't
            // completed remove it from the tracking now.
            if (present->DxgkContext != 0) {
                mPresentByDxgkContext.erase(eventIter);
                present->DxgkContext = 0;
            }
        }
    }

    // This event is emitted after a flip/blt/PHT event, and may be the only
    // way to trace completion of the present.
    if (packetType == (uint32_t) Microsoft_Windows_DxgKrnl::QueuePacketType::DXGKETW_MMIOFLIP_COMMAND_BUFFER ||
        packetType == (uint32_t) Microsoft_Windows_DxgKrnl::QueuePacketType::DXGKETW_SOFTWARE_COMMAND_BUFFER ||
        isPresentPacket) {
        auto present = FindPresentByThreadId(hdr.ThreadId);
        if (present != nullptr && present->QueueSubmitSequence == 0) {

            VerboseTraceBeforeModifyingPresent(present.get());
            present->QueueSubmitSequence = submitSequence;

            auto presentsBySubmitSequence = &mPresentBySubmitSequence[submitSequence];
            DebugAssert(presentsBySubmitSequence->find(hContext) == presentsBySubmitSequence->end());
            (*presentsBySubmitSequence)[hContext] = present;