Method startDebug

qrenderdoc/Windows/PixelHistoryView.cpp:774–842

}

void PixelHistoryView::startDebug(EventTag tag)
{
  m_Ctx.SetEventID({this}, tag.eventId, tag.eventId);

  const ShaderReflection *shaderDetails =
      m_Ctx.CurPipelineState().GetShaderReflection(ShaderStage::Pixel);

  if(!m_Ctx.APIProps().shaderDebugging)
  {
    RDDialog::critical(this, tr("Can't debug pixel"),
                       tr("This API does not support shader debugging"));
    return;
  }
  else if(!shaderDetails)
  {
    RDDialog::critical(this, tr("Can't debug pixel"),
                       tr("No pixel shader bound at event %1").arg(tag.eventId));
    return;
  }
  else if(!shaderDetails->debugInfo.debuggable)
  {
    RDDialog::critical(
        this, tr("Can't debug pixel"),
        tr("This shader doesn't support debugging: %1").arg(shaderDetails->debugInfo.debugStatus));
    return;
  }

  bool done = false;
  ShaderDebugTrace *trace = NULL;

  m_Ctx.Replay().AsyncInvoke([this, &trace, &done, tag](IReplayController *r) {
    DebugPixelInputs inputs;
    inputs.sample = m_Display.subresource.sample;
    inputs.primitive = tag.primitive;
    inputs.view = m_View;
    trace = r->DebugPixel((uint32_t)m_Pixel.x(), (uint32_t)m_Pixel.y(), inputs);

    if(trace->debugger == NULL)
    {
      r->FreeTrace(trace);
      trace = NULL;
    }

    done = true;
  });

  QString debugContext =
      QFormatStr("Pixel %1,%2 @ %3").arg(m_Pixel.x()).arg(m_Pixel.y()).arg(tag.eventId);

  // wait a short while before displaying the progress dialog (which won't show if we're already
  // done by the time we reach it)
  for(int i = 0; !done && i < 100; i++)
    QThread::msleep(5);

  ShowProgressDialog(this, tr("Debugging %1").arg(debugContext), [&done]() { return done; });

  if(!trace)
  {