Get rid of most instance of 'foo == NULL'

core/src/fxge/win32/fx_win32_print.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 "core/include/fxge/fx_ge.h"
 
 #if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
 
@@ skipping 38 matching lines @@
                          pSource->GetHeight(), &clip_rect, 0, alpha_flag,
                          pIccTransform, FXDIB_BLEND_NORMAL);
   }
   ASSERT(pSource && !pSource->IsAlphaMask() && pSrcRect);
   ASSERT(blend_type == FXDIB_BLEND_NORMAL);
   if (pSource->HasAlpha()) {
     return FALSE;
   }
   CFX_DIBExtractor temp(pSource);
   CFX_DIBitmap* pBitmap = temp;
-  if (pBitmap == NULL) {
+  if (!pBitmap) {
     return FALSE;
   }
   return GDI_SetDIBits(pBitmap, pSrcRect, left, top, pIccTransform);
 }
 FX_BOOL CGdiPrinterDriver::StretchDIBits(const CFX_DIBSource* pSource,
                                          FX_DWORD color,
                                          int dest_left,
                                          int dest_top,
                                          int dest_width,
                                          int dest_height,
                                          const FX_RECT* pClipRect,
                                          FX_DWORD flags,
                                          int alpha_flag,
                                          void* pIccTransform,
                                          int blend_type) {
   if (pSource->IsAlphaMask()) {
     int alpha = FXGETFLAG_COLORTYPE(alpha_flag)
                     ? FXGETFLAG_ALPHA_FILL(alpha_flag)
                     : FXARGB_A(color);
     if (pSource->GetBPP() != 1 || alpha != 255 || !m_bSupportROP) {
       return FALSE;
     }
     if (dest_width < 0 || dest_height < 0) {
       CFX_DIBitmap* pFlipped =
           pSource->FlipImage(dest_width < 0, dest_height < 0);
-      if (pFlipped == NULL) {
+      if (!pFlipped) {
         return FALSE;
       }
       if (dest_width < 0) {
         dest_left += dest_width;
       }
       if (dest_height < 0) {
         dest_top += dest_height;
       }
       FX_BOOL ret = GDI_StretchBitMask(pFlipped, dest_left, dest_top,
                                        abs(dest_width), abs(dest_height), color,
                                        flags, alpha_flag, pIccTransform);
       delete pFlipped;
       return ret;
     }
     CFX_DIBExtractor temp(pSource);
     CFX_DIBitmap* pBitmap = temp;
-    if (pBitmap == NULL) {
+    if (!pBitmap) {
       return FALSE;
     }
     return GDI_StretchBitMask(pBitmap, dest_left, dest_top, dest_width,
                               dest_height, color, flags, alpha_flag,
                               pIccTransform);
   }
   if (pSource->HasAlpha()) {
     return FALSE;
   }
   if (dest_width < 0 || dest_height < 0) {
     CFX_DIBitmap* pFlipped =
         pSource->FlipImage(dest_width < 0, dest_height < 0);
-    if (pFlipped == NULL) {
+    if (!pFlipped) {
       return FALSE;
     }
     if (dest_width < 0) {
       dest_left += dest_width;
     }
     if (dest_height < 0) {
       dest_top += dest_height;
     }
     FX_BOOL ret =
         GDI_StretchDIBits(pFlipped, dest_left, dest_top, abs(dest_width),
                           abs(dest_height), flags, pIccTransform);
     delete pFlipped;
     return ret;
   }
   CFX_DIBExtractor temp(pSource);
   CFX_DIBitmap* pBitmap = temp;
-  if (pBitmap == NULL) {
+  if (!pBitmap) {
     return FALSE;
   }
   return GDI_StretchDIBits(pBitmap, dest_left, dest_top, dest_width,
                            dest_height, flags, pIccTransform);
 }
 static CFX_DIBitmap* Transform1bppBitmap(const CFX_DIBSource* pSrc,
                                          const CFX_Matrix* pDestMatrix) {
   ASSERT(pSrc->GetFormat() == FXDIB_1bppRgb ||
          pSrc->GetFormat() == FXDIB_1bppMask ||
          pSrc->GetFormat() == FXDIB_1bppCmyk);
   CFX_DIBExtractor src_bitmap(pSrc);
   CFX_DIBitmap* pSrcBitmap = src_bitmap;
-  if (pSrcBitmap == NULL) {
+  if (!pSrcBitmap) {
     return NULL;
   }
   int src_width = pSrcBitmap->GetWidth(), src_height = pSrcBitmap->GetHeight();
   uint8_t* src_buf = pSrcBitmap->GetBuffer();
   FX_DWORD src_pitch = pSrcBitmap->GetPitch();
   FX_FLOAT dest_area = pDestMatrix->GetUnitArea();
   FX_FLOAT area_scale =
       FXSYS_Div((FX_FLOAT)(src_width * src_height), dest_area);
   FX_FLOAT size_scale = FXSYS_sqrt(area_scale);
   CFX_Matrix adjusted_matrix(*pDestMatrix);
@@ skipping 87 matching lines @@
     return StretchDIBits(pSource, color,
                          bFlipX ? full_rect.right : full_rect.left,
                          bFlipY ? full_rect.bottom : full_rect.top,
                          bFlipX ? -full_rect.Width() : full_rect.Width(),
                          bFlipY ? -full_rect.Height() : full_rect.Height(),
                          NULL, 0, alpha_flag, pIccTransform, blend_type);
   }
   if (FXSYS_fabs(pMatrix->a) < 0.5f && FXSYS_fabs(pMatrix->d) < 0.5f) {
     CFX_DIBitmap* pTransformed =
         pSource->SwapXY(pMatrix->c > 0, pMatrix->b < 0);
-    if (pTransformed == NULL) {
+    if (!pTransformed) {
       return FALSE;
     }
     FX_BOOL ret = StretchDIBits(
         pTransformed, color, full_rect.left, full_rect.top, full_rect.Width(),
         full_rect.Height(), NULL, 0, alpha_flag, pIccTransform, blend_type);
     delete pTransformed;
     return ret;
   }
   if (pSource->GetBPP() == 1) {
     CFX_DIBitmap* pTransformed = Transform1bppBitmap(pSource, pMatrix);
-    if (pIccTransform == NULL) {
+    if (!pIccTransform) {
       return FALSE;
     }
     SaveState();
     CFX_PathData path;
     path.AppendRect(0, 0, 1.0f, 1.0f);
     SetClip_PathFill(&path, pMatrix, WINDING);
     FX_BOOL ret = StretchDIBits(
         pTransformed, color, full_rect.left, full_rect.top, full_rect.Width(),
         full_rect.Height(), NULL, 0, alpha_flag, pIccTransform, blend_type);
     RestoreState();
@@ skipping 190 matching lines @@
                                          CFX_FontCache* pCache,
                                          const CFX_Matrix* pObject2Device,
                                          FX_FLOAT font_size,
                                          FX_DWORD color,
                                          int alpha_flag,
                                          void* pIccTransform) {
   return m_PSRenderer.DrawText(nChars, pCharPos, pFont, pCache, pObject2Device,
                                font_size, color, alpha_flag, pIccTransform);
 }
 #endif