Method RT_FetchCurrentPixel

qrenderdoc/Windows/TextureViewer.cpp:750–793

}

void TextureViewer::RT_FetchCurrentPixel(IReplayController *r, uint32_t x, uint32_t y,
                                         PixelValue &pickValue, PixelValue &realValue)
{
  TextureDescription *texptr = GetCurrentTexture();

  if(texptr == NULL)
    return;

  if(m_TexDisplay.flipY)
    y = (texptr->height - 1) - y;

  x = qMax(0U, MipCoordFromBase(x, texptr->width));
  y = qMax(0U, MipCoordFromBase(y, texptr->height));

  ResourceId id = m_TexDisplay.resourceId;
  Subresource sub = m_TexDisplay.subresource;
  CompType typeCast = m_TexDisplay.typeCast;

  if(m_TexDisplay.overlay == DebugOverlay::QuadOverdrawDraw ||
     m_TexDisplay.overlay == DebugOverlay::QuadOverdrawPass ||
     m_TexDisplay.overlay == DebugOverlay::TriangleSizeDraw ||
     m_TexDisplay.overlay == DebugOverlay::TriangleSizePass)
  {
    ResourceId overlayResId = m_Output->GetDebugOverlayTexID();

    if(overlayResId != ResourceId())
    {
      id = overlayResId;
      typeCast = CompType::Typeless;
    }
  }

  realValue = r->PickPixel(id, x, y, sub, typeCast);

  if(m_TexDisplay.customShaderId != ResourceId())
  {
    pickValue = r->PickPixel(m_Output->GetCustomShaderTexID(), x, y,
                             {m_TexDisplay.subresource.mip, 0, 0}, CompType::Typeless);
  }
  else
  {
    pickValue = realValue;
  }
}

void TextureViewer::RT_PickPixelsAndUpdate(IReplayController *r)
{