"NULL !=" = NULL

src/utils/win/SkWGL_win.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkWGL.h"
 
@@ skipping 349 matching lines @@
             int coreProfileAttribs[] = {
                 SK_WGL_CONTEXT_MAJOR_VERSION, -1,
                 SK_WGL_CONTEXT_MINOR_VERSION, -1,
                 SK_WGL_CONTEXT_PROFILE_MASK,  SK_WGL_CONTEXT_CORE_PROFILE_BIT,
                 0,
             };
             for (int v = 0; v < SK_ARRAY_COUNT(kCoreGLVersions) / 2; ++v) {
                 coreProfileAttribs[1] = kCoreGLVersions[2 * v];
                 coreProfileAttribs[3] = kCoreGLVersions[2 * v + 1];
                 glrc = extensions.createContextAttribs(dc, NULL, coreProfileAttribs);
-                if (NULL != glrc) {
+                if (glrc) {
                     break;
                 }
             }
         }
     }
 
     if (NULL == glrc) {
         glrc = wglCreateContext(dc);
     }
     SkASSERT(glrc);
@@ skipping 41 matching lines @@
 
     // try for single buffer first
     for (int dblBuffer = 0; dblBuffer < 2; ++dblBuffer) {
         int pixelFormatsToTry[] = { -1, -1 };
         get_pixel_formats_to_try(parentDC, extensions, (0 != dblBuffer), msaaSampleCount,
                                  pixelFormatsToTry);
         for (int f = 0; -1 != pixelFormatsToTry[f] && f < SK_ARRAY_COUNT(pixelFormatsToTry); ++f) {
             HPBUFFER pbuf = extensions.createPbuffer(parentDC, pixelFormatsToTry[f], 1, 1, NULL);
             if (0 != pbuf) {
                 HDC dc = extensions.getPbufferDC(pbuf);
-                if (NULL != dc) {
+                if (dc) {
                     HGLRC glrc = create_gl_context(dc, extensions, contextType);
-                    if (NULL != glrc) {
+                    if (glrc) {
                         return SkNEW_ARGS(SkWGLPbufferContext, (pbuf, dc, glrc));
                     }
                     extensions.releasePbufferDC(pbuf, dc);
                 }
                 extensions.destroyPbuffer(pbuf);
             }
         }
     }
     return NULL;
 }
 
 SkWGLPbufferContext::~SkWGLPbufferContext() {
     SkASSERT(fExtensions.hasExtension(fDC, "WGL_ARB_pbuffer"));
     wglDeleteContext(fGLRC);
     fExtensions.releasePbufferDC(fPbuffer, fDC);
     fExtensions.destroyPbuffer(fPbuffer);
 }
 
 SkWGLPbufferContext::SkWGLPbufferContext(HPBUFFER pbuffer, HDC dc, HGLRC glrc)
     : fPbuffer(pbuffer)
     , fDC(dc)
     , fGLRC(glrc) {
 }