Sanity check the values of TRUE and FALSE.

core/src/fpdfapi/fpdf_render/fpdf_render.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "../../../include/fpdfapi/fpdf_module.h"
 #include "../../../include/fpdfapi/fpdf_render.h"
 #include "../../../include/fxge/fx_ge.h"
 #include "../fpdf_page/pageint.h"
@@ skipping 741 matching lines @@
   int Transparency = m_Transparency;
   FX_BOOL bGroupTransparent = FALSE;
   if (pPageObj->m_Type == PDFPAGE_FORM) {
     CPDF_FormObject* pFormObj = (CPDF_FormObject*)pPageObj;
     const CPDF_GeneralStateData* pStateData =
         pFormObj->m_GeneralState.GetObject();
     if (pStateData) {
       group_alpha = pStateData->m_FillAlpha;
     }
     Transparency = pFormObj->m_pForm->m_Transparency;
-    bGroupTransparent = Transparency & PDFTRANS_ISOLATED ? TRUE : FALSE;
+    bGroupTransparent = Transparency & PDFTRANS_ISOLATED;

[Tom Sepez, 2015/10/15 17:08:31]

Again !!(Transparency & PDFTRANS_ISOLATED);

[Lei Zhang, 2015/10/19 08:56:18]

Done.

     if (pFormObj->m_pForm->m_pFormDict) {
       pFormResource = pFormObj->m_pForm->m_pFormDict->GetDict("Resources");
     }
   }
   FX_BOOL bTextClip = FALSE;
   if (pPageObj->m_ClipPath.NotNull() && pPageObj->m_ClipPath.GetTextCount() &&
       m_pDevice->GetDeviceClass() == FXDC_DISPLAY &&
       !(m_pDevice->GetDeviceCaps(FXDC_RENDER_CAPS) & FXRC_SOFT_CLIP)) {
     bTextClip = TRUE;
   }
@@ skipping 665 matching lines @@
     if (item.GetName() == FX_BSTRC("OC") &&
         item.GetParamType() == CPDF_ContentMarkItem::PropertiesDict) {
       CPDF_Dictionary* pOCG = (CPDF_Dictionary*)item.GetParam();
       if (!CheckOCGVisible(pOCG)) {
         return FALSE;
       }
     }
   }
   return TRUE;
 }