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

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• Hash : 3d8dff0a
  Author :
  Date : 2025-08-26T20:23:21
  

  Suppress unsafe buffers on a file-by-file basis in util/
  
  Bug: b/436880895
  Change-Id: I299247e38853bb16afd466e3f6521342c0a2b0f8
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6891980
  Auto-Submit: Tom Sepez <tsepez@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  

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• util/windows/win32/Win32Pixmap.cpp

• //
  // Copyright 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 Win32 (Windows)
  
  #ifdef UNSAFE_BUFFERS_BUILD
  #    pragma allow_unsafe_libc_calls
  #endif
  
  #include "util/windows/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();
  }
  

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