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 "chrome/browser/gpu/gl_string_manager.h"
6
7#include "base/prefs/pref_registry_simple.h"
8#include "base/prefs/pref_service.h"
9#include "chrome/browser/browser_process.h"
10#include "chrome/common/pref_names.h"
11#include "content/public/browser/gpu_data_manager.h"
12
13// static
14void GLStringManager::RegisterPrefs(PrefRegistrySimple* registry) {
15  registry->RegisterStringPref(prefs::kGLVendorString, std::string());
16  registry->RegisterStringPref(prefs::kGLRendererString, std::string());
17  registry->RegisterStringPref(prefs::kGLVersionString, std::string());
18}
19
20GLStringManager::GLStringManager() {
21}
22
23GLStringManager::~GLStringManager() {
24}
25
26void GLStringManager::Initialize() {
27  // On MacOSX or Windows, preliminary GPUInfo is enough.
28#if defined(OS_LINUX)
29  // We never remove this observer from GpuDataManager.
30  content::GpuDataManager::GetInstance()->AddObserver(this);
31
32  PrefService* local_state = g_browser_process->local_state();
33  if (!local_state)
34    return;
35
36  gl_vendor_ = local_state->GetString(prefs::kGLVendorString);
37  gl_renderer_ = local_state->GetString(prefs::kGLRendererString);
38  gl_version_ = local_state->GetString(prefs::kGLVersionString);
39
40  if (!gl_vendor_.empty() || !gl_renderer_.empty() || !gl_version_.empty()) {
41    content::GpuDataManager::GetInstance()->SetGLStrings(
42        gl_vendor_, gl_renderer_, gl_version_);
43  }
44#endif
45}
46
47void GLStringManager::OnGpuInfoUpdate() {
48  std::string gl_vendor, gl_renderer, gl_version;
49  content::GpuDataManager::GetInstance()->GetGLStrings(
50      &gl_vendor, &gl_renderer, &gl_version);
51
52  PrefService* local_state = g_browser_process->local_state();
53  if (!local_state)
54    return;
55
56  if (!gl_vendor.empty() && gl_vendor != gl_vendor_) {
57    gl_vendor_ = gl_vendor;
58    local_state->SetString(prefs::kGLVendorString, gl_vendor_);
59  }
60  if (!gl_renderer.empty() && gl_renderer != gl_renderer_) {
61    gl_renderer_ = gl_renderer;
62    local_state->SetString(prefs::kGLRendererString, gl_renderer_);
63  }
64  if (!gl_version.empty() && gl_version != gl_version_) {
65    gl_version_ = gl_version;
66    local_state->SetString(prefs::kGLVersionString, gl_version_);
67  }
68}
69
70