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

core/src/fxge/skia/fx_skia_device.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.
 
 #include "core/include/fxge/fx_ge.h"
 
 #if defined(_SKIA_SUPPORT_)
 #include "core/include/fxcodec/fx_codec.h"
 
 #include "SkDashPathEffect.h"
@@ skipping 194 matching lines @@
     default:
       join = SkPaint::kMiter_Join;
       break;
   }
   FX_FIXFLOAT width = pGraphState->m_LineWidth * scale;
   FX_FIXFLOAT unit = fix32_to_8(fixdiv_8_8_to_32(
       FIX8_ONE, (pObject2Device->GetXUnit() + pObject2Device->GetYUnit()) / 2));
   if (width <= unit)
     width = unit;
 
-  if (pGraphState->m_DashArray == NULL) {
-    SkStroke stroker;
-    stroker.setCap(cap);
-    stroker.setJoin(join);
-    stroker.setMiterLimit(pGraphState->m_MiterLimit);
-    stroker.setWidth(width);
-    stroker.setDoFill(FALSE);
-    stroker.strokePath(path_data, dstPathData);
-    SkMatrix smatrix;
-    smatrix.setAll(pObject2Device->a, pObject2Device->c, pObject2Device->e,
-                   pObject2Device->b, pObject2Device->d, pObject2Device->f, 0,
-                   0, 1);
-    dstPathData->transform(smatrix);
-  } else {
+  if (pGraphState->m_DashArray) {
     int count = (pGraphState->m_DashCount + 1) / 2;
     SkScalar* intervals = FX_Alloc2D(SkScalar, count, sizeof(SkScalar));
     // Set dash pattern
     for (int i = 0; i < count; i++) {
       FX_FIXFLOAT on = pGraphState->m_DashArray[i * 2];
       if (on <= 0.000001f)
         on = FIX8_ONE / 10;
       FX_FIXFLOAT off = i * 2 + 1 == pGraphState->m_DashCount
                             ? on
                             : pGraphState->m_DashArray[i * 2 + 1];
       if (off < 0)
         off = 0;
       intervals[i * 2] = on * scale;
       intervals[i * 2 + 1] = off * scale;
     }
     SkDashPathEffect* pEffect = new SkDashPathEffect(
         intervals, count * 2, pGraphState->m_DashPhase * scale);
     spaint.setPathEffect(pEffect)->unref();
     spaint.setStrokeWidth(width);
     spaint.setStrokeMiter(pGraphState->m_MiterLimit);
     spaint.setStrokeCap(cap);
     spaint.setStrokeJoin(join);
     spaint.getFillPath(path_data, dstPathData);
     SkMatrix smatrix;
     smatrix.setAll(pObject2Device->a, pObject2Device->c, pObject2Device->e,
                    pObject2Device->b, pObject2Device->d, pObject2Device->f, 0,
                    0, 1);
     dstPathData->transform(smatrix);
     FX_Free(intervals);
+  } else {
+    SkStroke stroker;
+    stroker.setCap(cap);
+    stroker.setJoin(join);
+    stroker.setMiterLimit(pGraphState->m_MiterLimit);
+    stroker.setWidth(width);
+    stroker.setDoFill(FALSE);
+    stroker.strokePath(path_data, dstPathData);
+    SkMatrix smatrix;
+    smatrix.setAll(pObject2Device->a, pObject2Device->c, pObject2Device->e,
+                   pObject2Device->b, pObject2Device->d, pObject2Device->f, 0,
+                   0, 1);
+    dstPathData->transform(smatrix);
   }
 }
 
 CFX_SkiaDeviceDriver::CFX_SkiaDeviceDriver(CFX_DIBitmap* pBitmap,
                                            int dither_bits,
                                            FX_BOOL bRgbByteOrder,
                                            CFX_DIBitmap* pOriDevice,
                                            FX_BOOL bGroupKnockout) {
   m_pAggDriver = new CFX_AggDeviceDriver(pBitmap, dither_bits, bRgbByteOrder,
                                          pOriDevice, bGroupKnockout);
@@ skipping 56 matching lines @@
 
   // Finally, we have got the mask that we need, intersect with current clip
   // region
   m_pAggDriver->m_pClipRgn->IntersectMaskF(clip_box.fLeft, clip_box.fTop, mask);
 }
 FX_BOOL CFX_SkiaDeviceDriver::SetClip_PathFill(
     const CFX_PathData* pPathData,     // path info
     const CFX_Matrix* pObject2Device,  // optional transformation
     int fill_mode                      // fill mode, WINDING or ALTERNATE
     ) {
-  if (m_pAggDriver->m_pClipRgn == NULL)
+  if (!m_pAggDriver->m_pClipRgn) {
     m_pAggDriver->m_pClipRgn = new CFX_ClipRgn(
         GetDeviceCaps(FXDC_PIXEL_WIDTH), GetDeviceCaps(FXDC_PIXEL_HEIGHT));
+  }
 
   if (pPathData->GetPointCount() == 5 || pPathData->GetPointCount() == 4) {
     CFX_FloatRect rectf;
     if (pPathData->IsRect(pObject2Device, &rectf)) {
       rectf.Intersect(
           CFX_FloatRect(0, 0, (FX_FIXFLOAT)GetDeviceCaps(FXDC_PIXEL_WIDTH),
                         (FX_FIXFLOAT)GetDeviceCaps(FXDC_PIXEL_HEIGHT)));
       FX_RECT rect = rectf.GetOutterRect();
       m_pAggDriver->m_pClipRgn->IntersectRect(rect);
       return TRUE;
@@ skipping 14 matching lines @@
   SetClipMask(path_data.m_PathData, &spaint);
 
   return TRUE;
 }
 
 FX_BOOL CFX_SkiaDeviceDriver::SetClip_PathStroke(
     const CFX_PathData* pPathData,         // path info
     const CFX_Matrix* pObject2Device,      // optional transformation
     const CFX_GraphStateData* pGraphState  // graphic state, for pen attributes
     ) {
-  if (m_pAggDriver->m_pClipRgn == NULL)
+  if (!m_pAggDriver->m_pClipRgn) {
     m_pAggDriver->m_pClipRgn = new CFX_ClipRgn(
         GetDeviceCaps(FXDC_PIXEL_WIDTH), GetDeviceCaps(FXDC_PIXEL_HEIGHT));
+  }
 
   // build path data
   CSkia_PathData path_data;
   path_data.BuildPath(pPathData, NULL);
   path_data.m_PathData.setFillType(SkPath::kWinding_FillType);
 
   SkPaint spaint;
   spaint.setColor(0xffffffff);
   spaint.setStyle(SkPaint::kStroke_Style);
   spaint.setAntiAlias(TRUE);
@@ skipping 41 matching lines @@
 
 FX_BOOL CFX_SkiaDeviceDriver::DrawPath(
     const CFX_PathData* pPathData,          // path info
     const CFX_Matrix* pObject2Device,       // optional transformation
     const CFX_GraphStateData* pGraphState,  // graphic state, for pen attributes
     FX_DWORD fill_color,                    // fill color
     FX_DWORD stroke_color,                  // stroke color
     int fill_mode,  // fill mode, WINDING or ALTERNATE. 0 for not filled
     int alpha_flag,
     void* pIccTransform) {
-  if (GetBuffer() == NULL)
+  if (!GetBuffer())
     return TRUE;
   FOXIT_DEBUG1("CFX_SkiaDeviceDriver::DrawPath: entering");
   SkIRect rect;
   rect.set(0, 0, GetDeviceCaps(FXDC_PIXEL_WIDTH),
            GetDeviceCaps(FXDC_PIXEL_HEIGHT));
   if ((fill_mode & 3) && fill_color) {
     // We have to transform before building path data, otherwise we'll have
     // flatting problem
     // when we enlarge a small path (flatten before transformed)
     // TESTDOC: Bug #5115 - DS_S1Dimpact_lr.pdf
@@ skipping 139 matching lines @@
 
 CFX_SkiaDevice::CFX_SkiaDevice() {
   m_bOwnedBitmap = FALSE;
 }
 
 FX_BOOL CFX_SkiaDevice::Attach(CFX_DIBitmap* pBitmap,
                                int dither_bits,
                                FX_BOOL bRgbByteOrder,
                                CFX_DIBitmap* pOriDevice,
                                FX_BOOL bGroupKnockout) {
-  if (pBitmap == NULL)
+  if (!pBitmap)
     return FALSE;
   SetBitmap(pBitmap);
   CFX_SkiaDeviceDriver* pDriver = new CFX_SkiaDeviceDriver(
       pBitmap, dither_bits, bRgbByteOrder, pOriDevice, bGroupKnockout);
   SetDeviceDriver(pDriver);
   return TRUE;
 }
 
 FX_BOOL CFX_SkiaDevice::Create(int width,
                                int height,
@@ skipping 11 matching lines @@
       new CFX_SkiaDeviceDriver(pBitmap, dither_bits, FALSE, pOriDevice, FALSE);
   SetDeviceDriver(pDriver);
   return TRUE;
 }
 CFX_SkiaDevice::~CFX_SkiaDevice() {
   if (m_bOwnedBitmap && GetBitmap())
     delete GetBitmap();
 }
 
 #endif