| Index: chrome/browser/chrome_gpu_util.cc
|
| ===================================================================
|
| --- chrome/browser/chrome_gpu_util.cc (revision 155222)
|
| +++ chrome/browser/chrome_gpu_util.cc (working copy)
|
| @@ -1,123 +0,0 @@
|
| -// Copyright (c) 2012 The Chromium Authors. All rights reserved.
|
| -// Use of this source code is governed by a BSD-style license that can be
|
| -// found in the LICENSE file.
|
| -
|
| -#include "chrome/browser/chrome_gpu_util.h"
|
| -
|
| -#include "base/command_line.h"
|
| -#include "base/metrics/field_trial.h"
|
| -#include "base/metrics/histogram.h"
|
| -#include "base/version.h"
|
| -#if defined(OS_WIN)
|
| -#include "base/win/windows_version.h"
|
| -#endif
|
| -#include "chrome/common/chrome_switches.h"
|
| -#include "chrome/common/chrome_version_info.h"
|
| -#include "content/public/browser/gpu_data_manager.h"
|
| -#include "content/public/common/content_constants.h"
|
| -#include "content/public/common/content_switches.h"
|
| -#include "grit/browser_resources.h"
|
| -#include "ui/base/resource/resource_bundle.h"
|
| -
|
| -using content::GpuDataManager;
|
| -
|
| -namespace gpu_util {
|
| -
|
| -void InitializeCompositingFieldTrial() {
|
| -// Enable the field trial only on desktop OS's.
|
| -#if !(defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_LINUX))
|
| - return;
|
| -#endif
|
| -#if defined(OS_WIN)
|
| - // Don't run the trial on Windows XP.
|
| - if (base::win::GetVersion() < base::win::VERSION_VISTA)
|
| - return;
|
| -#endif
|
| -
|
| - // The performance of accelerated compositing is too low with software
|
| - // rendering.
|
| - if (content::GpuDataManager::GetInstance()->ShouldUseSoftwareRendering())
|
| - return;
|
| -
|
| - // Don't activate the field trial if force-compositing-mode has been
|
| - // explicitly disabled from the command line.
|
| - if (CommandLine::ForCurrentProcess()->HasSwitch(
|
| - switches::kDisableForceCompositingMode))
|
| - return;
|
| -
|
| - const base::FieldTrial::Probability kDivisor = 3;
|
| - scoped_refptr<base::FieldTrial> trial(
|
| - base::FieldTrialList::FactoryGetFieldTrial(
|
| - content::kGpuCompositingFieldTrialName, kDivisor,
|
| - "disable", 2012, 12, 31, NULL));
|
| -
|
| - // Produce the same result on every run of this client.
|
| - trial->UseOneTimeRandomization();
|
| -
|
| - base::FieldTrial::Probability force_compositing_mode_probability = 0;
|
| - base::FieldTrial::Probability threaded_compositing_probability = 0;
|
| -
|
| - chrome::VersionInfo::Channel channel = chrome::VersionInfo::GetChannel();
|
| - if (channel == chrome::VersionInfo::CHANNEL_STABLE ||
|
| - channel == chrome::VersionInfo::CHANNEL_BETA) {
|
| - // Stable and Beta channels: Non-threaded force-compositing-mode on by
|
| - // default (mac and windows only).
|
| -#if defined(OS_WIN) || defined(OS_MACOSX)
|
| - force_compositing_mode_probability = 3;
|
| -#endif
|
| - } else if (channel == chrome::VersionInfo::CHANNEL_DEV ||
|
| - channel == chrome::VersionInfo::CHANNEL_CANARY) {
|
| - // Dev and Canary channels: force-compositing-mode and
|
| - // threaded-compositing on with 1/3 probability each.
|
| - force_compositing_mode_probability = 1;
|
| -
|
| -#if defined(OS_MACOSX) || defined(OS_LINUX)
|
| - // Threaded compositing mode isn't feature complete on mac or linux yet:
|
| - // http://crbug.com/133602 for mac
|
| - // http://crbug.com/140866 for linux
|
| - threaded_compositing_probability = 0;
|
| -#else
|
| - if (!CommandLine::ForCurrentProcess()->HasSwitch(
|
| - switches::kDisableThreadedCompositing))
|
| - threaded_compositing_probability = 1;
|
| -#endif
|
| - }
|
| -
|
| - int force_compositing_group = trial->AppendGroup(
|
| - content::kGpuCompositingFieldTrialForceCompositingEnabledName,
|
| - force_compositing_mode_probability);
|
| - int thread_group = trial->AppendGroup(
|
| - content::kGpuCompositingFieldTrialThreadEnabledName,
|
| - threaded_compositing_probability);
|
| -
|
| - bool force_compositing = (trial->group() == force_compositing_group);
|
| - bool thread = (trial->group() == thread_group);
|
| - UMA_HISTOGRAM_BOOLEAN("GPU.InForceCompositingModeFieldTrial",
|
| - force_compositing);
|
| - UMA_HISTOGRAM_BOOLEAN("GPU.InCompositorThreadFieldTrial", thread);
|
| -}
|
| -
|
| -// Load GPU Blacklist, collect preliminary gpu info, and compute preliminary
|
| -// gpu feature flags.
|
| -void InitializeGpuDataManager(const CommandLine& command_line) {
|
| - if (command_line.HasSwitch(switches::kSkipGpuDataLoading))
|
| - return;
|
| -
|
| - std::string chrome_version_string = "0";
|
| - std::string gpu_blacklist_json_string;
|
| - if (!command_line.HasSwitch(switches::kIgnoreGpuBlacklist)) {
|
| - chrome::VersionInfo chrome_version_info;
|
| - if (chrome_version_info.is_valid())
|
| - chrome_version_string = chrome_version_info.Version();
|
| -
|
| - const base::StringPiece gpu_blacklist_json(
|
| - ResourceBundle::GetSharedInstance().GetRawDataResource(
|
| - IDR_GPU_BLACKLIST, ui::SCALE_FACTOR_NONE));
|
| - gpu_blacklist_json_string = gpu_blacklist_json.as_string();
|
| - }
|
| - content::GpuDataManager::GetInstance()->Initialize(
|
| - chrome_version_string, gpu_blacklist_json_string);
|
| -}
|
| -
|
| -} // namespace gpu_util;
|
| -
|
|
|