Method AutoFitRange

qrenderdoc/Windows/TextureViewer.cpp:3713–3799

}

void TextureViewer::AutoFitRange()
{
  // no capture loaded or buffer/empty texture currently being viewed - don't autofit
  if(!m_Ctx.IsCaptureLoaded() || GetCurrentTexture() == NULL || m_Output == NULL)
    return;

  m_Ctx.Replay().AsyncInvoke([this](IReplayController *r) {
    ResourceId textureId = m_TexDisplay.resourceId;
    Subresource sub = m_TexDisplay.subresource;
    CompType typeCast = m_TexDisplay.typeCast;

    if(m_TexDisplay.customShaderId != ResourceId() && m_Output->GetCustomShaderTexID() != ResourceId())
    {
      textureId = m_Output->GetCustomShaderTexID();
      sub.slice = sub.sample = 0;
      typeCast = CompType::Typeless;
    }

    PixelValue min, max;
    rdctie(min, max) = r->GetMinMax(textureId, sub, typeCast);

    {
      float minval = FLT_MAX;
      float maxval = -FLT_MAX;

      bool changeRange = false;

      ResourceFormat fmt = GetCurrentTexture()->format;

      if(m_TexDisplay.customShaderId != ResourceId())
      {
        fmt.compType = CompType::Float;
      }
      if(fmt.compType == CompType::Typeless && m_TexDisplay.typeCast == CompType::UInt)
        fmt.compType = CompType::UInt;
      if(fmt.compType == CompType::Typeless && m_TexDisplay.typeCast == CompType::SInt)
        fmt.compType = CompType::SInt;

      for(int i = 0; i < 4; i++)
      {
        if(fmt.compType == CompType::UInt)
        {
          min.floatValue[i] = min.uintValue[i];
          max.floatValue[i] = max.uintValue[i];
        }
        else if(fmt.compType == CompType::SInt)
        {
          min.floatValue[i] = min.intValue[i];
          max.floatValue[i] = max.intValue[i];
        }
      }

      if(m_TexDisplay.red)
      {
        minval = qMin(minval, min.floatValue[0]);
        maxval = qMax(maxval, max.floatValue[0]);
        changeRange = true;
      }