fxcrt convergence - XFA side.

core/src/fxge/dib/fx_dib_engine.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 <limits.h>
 
 #include "../../../include/fxge/fx_dib.h"
 #include "../../../include/fxge/fx_ge.h"
@@ skipping 822 matching lines @@
   if (m_Flags & FXDIB_DOWNSAMPLE) {
     return ContinueQuickStretch(pPause);
   }
   return ContinueStretch(pPause);
 }
 #define MAX_PROGRESSIVE_STRETCH_PIXELS 1000000
 FX_BOOL CFX_ImageStretcher::StartStretch() {
   m_pStretchEngine =
       new CStretchEngine(m_pDest, m_DestFormat, m_DestWidth, m_DestHeight,
                          m_ClipRect, m_pSource, m_Flags);
-  if (!m_pStretchEngine) {
-    return FALSE;
-  }
   m_pStretchEngine->StartStretchHorz();
   if (m_pSource->GetWidth() * m_pSource->GetHeight() <
       MAX_PROGRESSIVE_STRETCH_PIXELS) {
     m_pStretchEngine->Continue(NULL);
     return FALSE;
   }
   return TRUE;
 }
 FX_BOOL CFX_ImageStretcher::ContinueStretch(IFX_Pause* pPause) {
   if (m_pStretchEngine == NULL) {
@@ skipping 58 matching lines @@
                                   m_bFlipX, m_ClipRect.left, result_width);
     if (m_pMaskScanline) {
       m_pSource->m_pAlphaMask->DownSampleScanline(
           src_y, m_pMaskScanline, 1, m_DestWidth, m_bFlipX, m_ClipRect.left,
           result_width);
     }
     m_pDest->ComposeScanline(dest_y, m_pScanline, m_pMaskScanline);
   }
   return FALSE;
 }