Method on_debugPixelContext_clicked

qrenderdoc/Windows/TextureViewer.cpp:4101–4162

}

void TextureViewer::on_debugPixelContext_clicked()
{
  if(m_PickedPoint.x() < 0 || m_PickedPoint.y() < 0)
    return;

  TextureDescription *texptr = GetCurrentTexture();

  int x = MipCoordFromBase(m_PickedPoint.x(), texptr->width);
  int y = MipCoordFromBase(m_PickedPoint.y(), texptr->height);

  uint32_t mipHeight = qMax(1U, texptr->height >> (int)m_TexDisplay.subresource.mip);

  if(m_TexDisplay.flipY)
    y = (int)(mipHeight - 1) - y;

  bool done = false;
  ShaderDebugTrace *trace = NULL;

  uint32_t view = m_TexDisplay.subresource.slice - m_Following.GetFirstArraySlice(m_Ctx);
  m_Ctx.Replay().AsyncInvoke([this, &trace, &done, x, y, view](IReplayController *r) {
    DebugPixelInputs inputs;
    inputs.sample = m_TexDisplay.subresource.sample;
    inputs.view = view;
    trace = r->DebugPixel((uint32_t)x, (uint32_t)y, inputs);

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

    done = true;
  });

  QString debugContext = tr("Pixel %1,%2").arg(x).arg(y);

  // 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 we couldn't debug the pixel on this event, open up a pixel history
  if(!trace)
  {
    if(m_Ctx.APIProps().pixelHistory)
      ShowPixelHistory(true);
    else
      RDDialog::critical(this, tr("Debug Error"), tr("Error debugging pixel."));
    return;
  }

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

  // viewer takes ownership of the trace