mfbt/WindowsVersion.h
author Doug Thayer <dothayer@mozilla.com>
Wed, 02 May 2018 18:20:25 -0700
changeset 427223 984133e9614baa845a6dca7fc2cc6ca50cbb1687
parent 417523 f4eb4ea90aca4747ae8d6786312608c4887a3d15
child 448947 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
Bug 1265824 - Pass the texture direct mapping info to all texture creating functions r=mattwoodrow The client side can't get the GL context in CompositorOGL. So, it can't know the texture direct mapping capability directly. This patch adds the texture direct mapping info in TextureFactoryIdentifier. Then, the client side could get the info form the TextureFactoryIdentifier. MozReview-Commit-ID: KEazDVg0p9Y

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_WindowsVersion_h
#define mozilla_WindowsVersion_h

#include "mozilla/Atomics.h"
#include "mozilla/Attributes.h"
#include <stdint.h>
#include <windows.h>

namespace mozilla {

inline bool
IsWindowsVersionOrLater(uint32_t aVersion)
{
  static Atomic<uint32_t> minVersion(0);
  static Atomic<uint32_t> maxVersion(UINT32_MAX);

  if (minVersion >= aVersion) {
    return true;
  }

  if (aVersion >= maxVersion) {
    return false;
  }

  OSVERSIONINFOEX info;
  ZeroMemory(&info, sizeof(OSVERSIONINFOEX));
  info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
  info.dwMajorVersion = aVersion >> 24;
  info.dwMinorVersion = (aVersion >> 16) & 0xFF;
  info.wServicePackMajor = (aVersion >> 8) & 0xFF;
  info.wServicePackMinor = aVersion & 0xFF;

  DWORDLONG conditionMask = 0;
  VER_SET_CONDITION(conditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL);
  VER_SET_CONDITION(conditionMask, VER_MINORVERSION, VER_GREATER_EQUAL);
  VER_SET_CONDITION(conditionMask, VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);
  VER_SET_CONDITION(conditionMask, VER_SERVICEPACKMINOR, VER_GREATER_EQUAL);

  if (VerifyVersionInfo(&info,
                        VER_MAJORVERSION | VER_MINORVERSION |
                        VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR,
                        conditionMask)) {
    minVersion = aVersion;
    return true;
  }

  maxVersion = aVersion;
  return false;
}

inline bool
IsWindowsBuildOrLater(uint32_t aBuild)
{
  static Atomic<uint32_t> minBuild(0);
  static Atomic<uint32_t> maxBuild(UINT32_MAX);

  if (minBuild >= aBuild) {
    return true;
  }

  if (aBuild >= maxBuild) {
    return false;
  }

  OSVERSIONINFOEX info;
  ZeroMemory(&info, sizeof(OSVERSIONINFOEX));
  info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
  info.dwBuildNumber = aBuild;

  DWORDLONG conditionMask = 0;
  VER_SET_CONDITION(conditionMask, VER_BUILDNUMBER, VER_GREATER_EQUAL);

  if (VerifyVersionInfo(&info, VER_BUILDNUMBER, conditionMask)) {
    minBuild = aBuild;
    return true;
  }

  maxBuild = aBuild;
  return false;
}

inline bool
IsWindows10BuildOrLater(uint32_t aBuild)
{
  static Atomic<uint32_t> minBuild(0);
  static Atomic<uint32_t> maxBuild(UINT32_MAX);

  if (minBuild >= aBuild) {
    return true;
  }

  if (aBuild >= maxBuild) {
    return false;
  }

  OSVERSIONINFOEX info;
  ZeroMemory(&info, sizeof(OSVERSIONINFOEX));
  info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
  info.dwMajorVersion = 10;
  info.dwBuildNumber = aBuild;

  DWORDLONG conditionMask = 0;
  VER_SET_CONDITION(conditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL);
  VER_SET_CONDITION(conditionMask, VER_MINORVERSION, VER_GREATER_EQUAL);
  VER_SET_CONDITION(conditionMask, VER_BUILDNUMBER, VER_GREATER_EQUAL);
  VER_SET_CONDITION(conditionMask, VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);
  VER_SET_CONDITION(conditionMask, VER_SERVICEPACKMINOR, VER_GREATER_EQUAL);

  if (VerifyVersionInfo(&info, VER_MAJORVERSION | VER_MINORVERSION |
                        VER_BUILDNUMBER | VER_SERVICEPACKMAJOR |
                        VER_SERVICEPACKMINOR, conditionMask)) {
    minBuild = aBuild;
    return true;
  }

  maxBuild = aBuild;
  return false;
}

MOZ_ALWAYS_INLINE bool
IsWin7SP1OrLater()
{
  return IsWindowsVersionOrLater(0x06010100ul);
}

MOZ_ALWAYS_INLINE bool
IsWin8OrLater()
{
  return IsWindowsVersionOrLater(0x06020000ul);
}

MOZ_ALWAYS_INLINE bool
IsWin8Point1OrLater()
{
  return IsWindowsVersionOrLater(0x06030000ul);
}

MOZ_ALWAYS_INLINE bool
IsWin10OrLater()
{
  return IsWindowsVersionOrLater(0x0a000000ul);
}

MOZ_ALWAYS_INLINE bool
IsWin10November2015UpdateOrLater()
{
  return IsWindows10BuildOrLater(10586);
}

MOZ_ALWAYS_INLINE bool
IsWin10AnniversaryUpdateOrLater()
{
  return IsWindows10BuildOrLater(14393);
}

MOZ_ALWAYS_INLINE bool
IsWin10CreatorsUpdateOrLater()
{
  return IsWindows10BuildOrLater(15063);
}

MOZ_ALWAYS_INLINE bool
IsWin10FallCreatorsUpdateOrLater()
{
  return IsWindows10BuildOrLater(16299);
}

MOZ_ALWAYS_INLINE bool
IsWin10April2018UpdateOrLater()
{
  return IsWindows10BuildOrLater(17134);
}

MOZ_ALWAYS_INLINE bool
IsNotWin7PreRTM()
{
  return IsWin7SP1OrLater() || IsWindowsBuildOrLater(7600);
}

inline bool
IsWin7AndPre2000Compatible() {
  /*
   * See Bug 1279171.
   * We'd like to avoid using WMF on specific OS version when compatibility
   * mode is in effect. The purpose of this function is to check if FF runs on
   * Win7 OS with application compatibility mode being set to 95/98/ME.
   * Those compatibility mode options (95/98/ME) can only display and
   * be selected for 32-bit application.
   * If the compatibility mode is in effect, the GetVersionEx function will
   * report the OS as it identifies itself, which may not be the OS that is
   * installed.
   * Note : 1) We only target for Win7 build number greater than 7600.
   *        2) GetVersionEx may be altered or unavailable for release after
   *           Win8.1. Set pragma to avoid build warning as error.
   */
  bool isWin7 = IsNotWin7PreRTM() && !IsWin8OrLater();
  if (!isWin7) {
    return false;
  }

  OSVERSIONINFOEX info;
  ZeroMemory(&info, sizeof(OSVERSIONINFOEX));

  info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
#pragma warning(push)
#pragma warning(disable:4996)
  bool success = GetVersionEx((LPOSVERSIONINFO) &info);
#pragma warning(pop)
  if (!success) {
    return false;
  }
  return info.dwMajorVersion < 5;
}

} // namespace mozilla

#endif /* mozilla_WindowsVersion_h */