kc3-lang/angle/util/win32/Win32Pixmap.cpp

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• Author : Cooper Partin
  Date : 2015-08-12 10:56:50
  Hash : 4d61f7ed
  Message : Reland Fixed compiler warning C4267 'conversion from 'size_t' to 'type', possible loss of data' Additional warnings found with more testing and added C4267 warning disable only for angle_libpng BUG=angleproject:1120 Change-Id: Ic403dcff5a8018056fa51a8c408e64207f3362eb Reviewed-on: https://chromium-review.googlesource.com/293028 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>

• util/win32/Win32Pixmap.cpp

• //
  // Copyright (c) 2015 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // Win32Pixmap.cpp: Implementation of OSPixmap for Windows
  
  #include "win32/Win32Pixmap.h"
  
  Win32Pixmap::Win32Pixmap()
      : mBitmap(nullptr)
  {
  }
  
  Win32Pixmap::~Win32Pixmap()
  {
      if (mBitmap)
      {
          DeleteObject(mBitmap);
      }
  }
  
  bool Win32Pixmap::initialize(EGLNativeDisplayType display, size_t width, size_t height, int depth)
  {
      BITMAPINFO bitmapInfo;
      memset(&bitmapInfo, 0, sizeof(bitmapInfo));
  
      if (depth != 24 && depth != 32)
      {
          return false;
      }
  
      bitmapInfo.bmiHeader.biSize = sizeof(bitmapInfo);
      bitmapInfo.bmiHeader.biWidth         = static_cast<LONG>(width);
      bitmapInfo.bmiHeader.biHeight        = static_cast<LONG>(height);
      bitmapInfo.bmiHeader.biPlanes = 1;
      bitmapInfo.bmiHeader.biBitCount = static_cast<WORD>(depth);
      bitmapInfo.bmiHeader.biCompression = BI_RGB;
      bitmapInfo.bmiHeader.biSizeImage = 0;
      bitmapInfo.bmiHeader.biXPelsPerMeter = 1;
      bitmapInfo.bmiHeader.biYPelsPerMeter = 1;
      bitmapInfo.bmiHeader.biClrUsed = 0;
      bitmapInfo.bmiHeader.biClrImportant = 0;
  
      void *bitmapPtr = nullptr;
      mBitmap = CreateDIBSection(display, &bitmapInfo, DIB_RGB_COLORS, &bitmapPtr, nullptr, 0);
  
      return mBitmap != nullptr;
  }
  
  EGLNativePixmapType Win32Pixmap::getNativePixmap() const
  {
      return mBitmap;
  }
  
  OSPixmap *CreateOSPixmap()
  {
      return new Win32Pixmap();
  }