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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "ui/gfx/color_profile.h" | |
| 6 | |
| 7 #include <windows.h> | |
| 8 #include <stddef.h> | |
| 9 #include <map> | |
| 10 | |
| 11 #include "base/files/file_util.h" | |
| 12 #include "base/lazy_instance.h" | |
| 13 #include "base/macros.h" | |
| 14 #include "base/synchronization/lock.h" | |
| 15 | |
| 16 namespace gfx { | |
| 17 | |
| 18 namespace { | |
| 19 | |
| 20 void ReadBestMonitorColorProfile(std::vector<char>* profile) { | |
| 21 HDC screen_dc = GetDC(NULL); | |
| 22 DWORD path_len = MAX_PATH; | |
| 23 WCHAR path[MAX_PATH + 1]; | |
| 24 | |
| 25 BOOL result = GetICMProfile(screen_dc, &path_len, path); | |
| 26 ReleaseDC(NULL, screen_dc); | |
| 27 if (!result) | |
| 28 return; | |
| 29 std::string profileData; | |
| 30 if (!base::ReadFileToString(base::FilePath(path), &profileData)) | |
| 31 return; | |
| 32 size_t length = profileData.size(); | |
| 33 if (!ColorProfile::IsValidProfileLength(length)) | |
| 34 return; | |
| 35 profile->assign(profileData.data(), profileData.data() + length); | |
| 36 } | |
| 37 | |
| 38 base::LazyInstance<base::Lock> g_best_color_profile_lock = | |
| 39 LAZY_INSTANCE_INITIALIZER; | |
| 40 base::LazyInstance<gfx::ColorProfile> g_best_color_profile = | |
| 41 LAZY_INSTANCE_INITIALIZER; | |
| 42 bool g_has_initialized_best_color_profile = false; | |
| 43 | |
| 44 } // namespace | |
| 45 | |
| 46 // static | |
| 47 ColorProfile ColorProfile::GetFromBestMonitor() { | |
| 48 base::AutoLock lock(g_best_color_profile_lock.Get()); | |
| 49 return g_best_color_profile.Get(); | |
| 50 } | |
| 51 | |
| 52 // static | |
| 53 bool ColorProfile::CachedProfilesNeedUpdate() { | |
| 54 base::AutoLock lock(g_best_color_profile_lock.Get()); | |
| 55 return !g_has_initialized_best_color_profile; | |
| 56 } | |
| 57 | |
| 58 // static | |
| 59 void ColorProfile::UpdateCachedProfilesOnBackgroundThread() { | |
| 60 std::vector<char> profile; | |
| 61 ReadBestMonitorColorProfile(&profile); | |
| 62 | |
| 63 base::AutoLock lock(g_best_color_profile_lock.Get()); | |
| 64 g_best_color_profile.Get().profile_ = profile; | |
| 65 g_has_initialized_best_color_profile = true; | |
| 66 } | |
| 67 | |
| 68 } // namespace gfx | |
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