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compositor_util.cc
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compositor_util.cc
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// 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 "content/browser/gpu/compositor_util.h"
#include <stddef.h>
#include <utility>
#include "base/command_line.h"
#include "base/feature_list.h"
#include "base/logging.h"
#include "base/macros.h"
#include "base/memory/ptr_util.h"
#include "base/metrics/field_trial.h"
#include "base/numerics/ranges.h"
#include "base/strings/string_number_conversions.h"
#include "base/sys_info.h"
#include "build/build_config.h"
#include "cc/base/switches.h"
#include "content/browser/gpu/gpu_data_manager_impl.h"
#include "content/public/common/content_features.h"
#include "content/public/common/content_switches.h"
#include "gpu/config/gpu_feature_type.h"
#include "gpu/config/gpu_finch_features.h"
#include "gpu/config/gpu_switches.h"
#include "gpu/ipc/host/gpu_memory_buffer_support.h"
#include "media/media_features.h"
#include "ui/gl/gl_switches.h"
namespace content {
namespace {
const char kGpuCompositingFeatureName[] = "gpu_compositing";
const char kWebGLFeatureName[] = "webgl";
const char kRasterizationFeatureName[] = "rasterization";
const char kMultipleRasterThreadsFeatureName[] = "multiple_raster_threads";
const char kNativeGpuMemoryBuffersFeatureName[] = "native_gpu_memory_buffers";
const char kWebGL2FeatureName[] = "webgl2";
const char kCheckerImagingFeatureName[] = "checker_imaging";
const int kMinRasterThreads = 1;
const int kMaxRasterThreads = 4;
const int kMinMSAASampleCount = 0;
struct GpuFeatureData {
std::string name;
gpu::GpuFeatureStatus status;
bool disabled;
std::string disabled_description;
bool fallback_to_software;
};
bool IsForceGpuRasterizationEnabled() {
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
return command_line->HasSwitch(switches::kForceGpuRasterization);
}
const GpuFeatureData GetGpuFeatureData(size_t index, bool* eof) {
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
GpuDataManagerImpl* manager = GpuDataManagerImpl::GetInstance();
const GpuFeatureData kGpuFeatureData[] = {
{"2d_canvas",
manager->GetFeatureStatus(gpu::GPU_FEATURE_TYPE_ACCELERATED_2D_CANVAS),
command_line.HasSwitch(switches::kDisableAccelerated2dCanvas),
"Accelerated 2D canvas is unavailable: either disabled via blacklist or"
" the command line.",
true},
{kGpuCompositingFeatureName,
manager->GetFeatureStatus(gpu::GPU_FEATURE_TYPE_GPU_COMPOSITING),
command_line.HasSwitch(switches::kDisableGpuCompositing),
"Gpu compositing has been disabled, either via blacklist, about:flags"
" or the command line. The browser will fall back to software compositing"
" and hardware acceleration will be unavailable.",
true},
{kWebGLFeatureName,
manager->GetFeatureStatus(gpu::GPU_FEATURE_TYPE_ACCELERATED_WEBGL),
command_line.HasSwitch(switches::kDisableWebGL),
"WebGL has been disabled via blacklist or the command line.", false},
{"flash_3d", manager->GetFeatureStatus(gpu::GPU_FEATURE_TYPE_FLASH3D),
command_line.HasSwitch(switches::kDisableFlash3d),
"Using 3d in flash has been disabled, either via blacklist, about:flags or"
" the command line.",
true},
{"flash_stage3d",
manager->GetFeatureStatus(gpu::GPU_FEATURE_TYPE_FLASH_STAGE3D),
command_line.HasSwitch(switches::kDisableFlashStage3d),
"Using Stage3d in Flash has been disabled, either via blacklist,"
" about:flags or the command line.",
true},
{"flash_stage3d_baseline",
manager->GetFeatureStatus(gpu::GPU_FEATURE_TYPE_FLASH_STAGE3D_BASELINE),
command_line.HasSwitch(switches::kDisableFlashStage3d),
"Using Stage3d Baseline profile in Flash has been disabled, either"
" via blacklist, about:flags or the command line.",
true},
{"video_decode",
manager->GetFeatureStatus(gpu::GPU_FEATURE_TYPE_ACCELERATED_VIDEO_DECODE),
command_line.HasSwitch(switches::kDisableAcceleratedVideoDecode),
"Accelerated video decode has been disabled, either via blacklist,"
" about:flags or the command line.",
true},
#if defined(OS_CHROMEOS)
{"panel_fitting",
manager->GetFeatureStatus(gpu::GPU_FEATURE_TYPE_PANEL_FITTING),
command_line.HasSwitch(switches::kDisablePanelFitting),
"Panel fitting has been disabled, either via blacklist, about:flags or"
" the command line.",
false},
#endif
{kRasterizationFeatureName,
manager->GetFeatureStatus(gpu::GPU_FEATURE_TYPE_GPU_RASTERIZATION),
(command_line.HasSwitch(switches::kDisableGpuRasterization) &&
!IsForceGpuRasterizationEnabled()),
"Accelerated rasterization has been disabled, either via blacklist,"
" about:flags or the command line.",
true},
{kMultipleRasterThreadsFeatureName, gpu::kGpuFeatureStatusEnabled,
NumberOfRendererRasterThreads() == 1, "Raster is using a single thread.",
false},
{kNativeGpuMemoryBuffersFeatureName, gpu::kGpuFeatureStatusEnabled,
!gpu::AreNativeGpuMemoryBuffersEnabled(),
"Native GpuMemoryBuffers have been disabled, either via about:flags"
" or command line.",
true},
{kWebGL2FeatureName,
manager->GetFeatureStatus(gpu::GPU_FEATURE_TYPE_ACCELERATED_WEBGL2),
(command_line.HasSwitch(switches::kDisableWebGL) ||
command_line.HasSwitch(switches::kDisableWebGL2)),
"WebGL2 has been disabled via blacklist or the command line.", false},
{kCheckerImagingFeatureName, gpu::kGpuFeatureStatusEnabled,
!IsCheckerImagingEnabled(),
"Checker-imaging has been disabled via finch trial or the command line.",
false},
};
DCHECK(index < arraysize(kGpuFeatureData));
*eof = (index == arraysize(kGpuFeatureData) - 1);
return kGpuFeatureData[index];
}
} // namespace
int NumberOfRendererRasterThreads() {
int num_processors = base::SysInfo::NumberOfProcessors();
#if defined(OS_ANDROID) || \
(defined(OS_CHROMEOS) && defined(ARCH_CPU_ARM_FAMILY))
// Android and ChromeOS ARM devices may report 6 to 8 CPUs for big.LITTLE
// configurations. Limit the number of raster threads based on maximum of
// 4 big cores.
num_processors = std::min(num_processors, 4);
#endif
int num_raster_threads = num_processors / 2;
#if defined(OS_ANDROID)
// Limit the number of raster threads to 1 on Android.
// TODO(reveman): Remove this when we have a better mechanims to prevent
// pre-paint raster work from slowing down non-raster work. crbug.com/504515
num_raster_threads = 1;
#endif
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
if (command_line.HasSwitch(switches::kNumRasterThreads)) {
std::string string_value = command_line.GetSwitchValueASCII(
switches::kNumRasterThreads);
if (!base::StringToInt(string_value, &num_raster_threads)) {
DLOG(WARNING) << "Failed to parse switch " <<
switches::kNumRasterThreads << ": " << string_value;
}
}
return base::ClampToRange(num_raster_threads, kMinRasterThreads,
kMaxRasterThreads);
}
bool IsZeroCopyUploadEnabled() {
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
#if defined(OS_MACOSX)
return !command_line.HasSwitch(switches::kDisableZeroCopy);
#else
return command_line.HasSwitch(switches::kEnableZeroCopy);
#endif
}
bool IsPartialRasterEnabled() {
const auto& command_line = *base::CommandLine::ForCurrentProcess();
return !command_line.HasSwitch(switches::kDisablePartialRaster);
}
bool IsGpuMemoryBufferCompositorResourcesEnabled() {
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
if (command_line.HasSwitch(
switches::kEnableGpuMemoryBufferCompositorResources)) {
return true;
}
if (command_line.HasSwitch(
switches::kDisableGpuMemoryBufferCompositorResources)) {
return false;
}
// Native GPU memory buffers are required.
if (!gpu::AreNativeGpuMemoryBuffersEnabled())
return false;
#if defined(OS_MACOSX)
return true;
#else
return false;
#endif
}
int GpuRasterizationMSAASampleCount() {
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
if (!command_line.HasSwitch(switches::kGpuRasterizationMSAASampleCount))
#if defined(OS_ANDROID)
return 4;
#else
// Desktop platforms will compute this automatically based on DPI.
return -1;
#endif
std::string string_value = command_line.GetSwitchValueASCII(
switches::kGpuRasterizationMSAASampleCount);
int msaa_sample_count = 0;
if (base::StringToInt(string_value, &msaa_sample_count) &&
msaa_sample_count >= kMinMSAASampleCount) {
return msaa_sample_count;
} else {
DLOG(WARNING) << "Failed to parse switch "
<< switches::kGpuRasterizationMSAASampleCount << ": "
<< string_value;
return 0;
}
}
bool IsMainFrameBeforeActivationEnabled() {
if (base::SysInfo::NumberOfProcessors() < 4)
return false;
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
cc::switches::kDisableMainFrameBeforeActivation))
return false;
return true;
}
bool IsCheckerImagingEnabled() {
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
cc::switches::kDisableCheckerImaging))
return false;
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
cc::switches::kEnableCheckerImaging))
return true;
if (base::FeatureList::IsEnabled(features::kCheckerImaging))
return true;
return false;
}
bool IsGpuAsyncWorkerContextEnabled() {
if (!base::FeatureList::IsEnabled(features::kGpuScheduler))
return false;
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kDisableGpuAsyncWorkerContext))
return false;
return true;
}
bool IsCompositorImageAnimationEnabled() {
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kEnableCompositorImageAnimations))
return true;
if (base::FeatureList::IsEnabled(features::kCompositorImageAnimation))
return true;
return false;
}
std::unique_ptr<base::DictionaryValue> GetFeatureStatus() {
GpuDataManagerImpl* manager = GpuDataManagerImpl::GetInstance();
std::string gpu_access_blocked_reason;
bool gpu_access_blocked =
!manager->GpuAccessAllowed(&gpu_access_blocked_reason);
auto feature_status_dict = base::MakeUnique<base::DictionaryValue>();
bool eof = false;
for (size_t i = 0; !eof; ++i) {
const GpuFeatureData gpu_feature_data = GetGpuFeatureData(i, &eof);
std::string status;
if (gpu_feature_data.disabled || gpu_access_blocked) {
status = "disabled";
if (gpu_feature_data.fallback_to_software)
status += "_software";
else
status += "_off";
} else if (gpu_feature_data.status == gpu::kGpuFeatureStatusBlacklisted) {
status = "unavailable_off";
} else if (gpu_feature_data.status == gpu::kGpuFeatureStatusSoftware) {
status = "unavailable_software";
} else {
status = "enabled";
if ((gpu_feature_data.name == kWebGLFeatureName ||
gpu_feature_data.name == kWebGL2FeatureName) &&
(manager->GetFeatureStatus(gpu::GPU_FEATURE_TYPE_GPU_COMPOSITING) !=
gpu::kGpuFeatureStatusEnabled)) {
status += "_readback";
}
if (gpu_feature_data.name == kRasterizationFeatureName) {
if (IsForceGpuRasterizationEnabled())
status += "_force";
}
if (gpu_feature_data.name == kMultipleRasterThreadsFeatureName) {
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
if (command_line.HasSwitch(switches::kNumRasterThreads))
status += "_force";
}
if (gpu_feature_data.name == kMultipleRasterThreadsFeatureName)
status += "_on";
if (gpu_feature_data.name == kCheckerImagingFeatureName) {
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
if (command_line.HasSwitch(cc::switches::kEnableCheckerImaging))
status += "_force";
status += "_on";
}
}
feature_status_dict->SetString(gpu_feature_data.name, status);
}
return feature_status_dict;
}
std::unique_ptr<base::ListValue> GetProblems() {
GpuDataManagerImpl* manager = GpuDataManagerImpl::GetInstance();
std::string gpu_access_blocked_reason;
bool gpu_access_blocked =
!manager->GpuAccessAllowed(&gpu_access_blocked_reason);
auto problem_list = base::MakeUnique<base::ListValue>();
manager->GetBlacklistReasons(problem_list.get());
if (gpu_access_blocked) {
auto problem = base::MakeUnique<base::DictionaryValue>();
problem->SetString("description",
"GPU process was unable to boot: " + gpu_access_blocked_reason);
problem->Set("crBugs", base::MakeUnique<base::ListValue>());
auto disabled_features = base::MakeUnique<base::ListValue>();
disabled_features->AppendString("all");
problem->Set("affectedGpuSettings", std::move(disabled_features));
problem->SetString("tag", "disabledFeatures");
problem_list->Insert(0, std::move(problem));
}
bool eof = false;
for (size_t i = 0; !eof; ++i) {
const GpuFeatureData gpu_feature_data = GetGpuFeatureData(i, &eof);
if (gpu_feature_data.disabled) {
auto problem = base::MakeUnique<base::DictionaryValue>();
problem->SetString("description", gpu_feature_data.disabled_description);
problem->Set("crBugs", base::MakeUnique<base::ListValue>());
auto disabled_features = base::MakeUnique<base::ListValue>();
disabled_features->AppendString(gpu_feature_data.name);
problem->Set("affectedGpuSettings", std::move(disabled_features));
problem->SetString("tag", "disabledFeatures");
problem_list->Append(std::move(problem));
}
}
return problem_list;
}
std::vector<std::string> GetDriverBugWorkarounds() {
return GpuDataManagerImpl::GetInstance()->GetDriverBugWorkarounds();
}
viz::BufferToTextureTargetMap CreateBufferToTextureTargetMap() {
viz::BufferToTextureTargetMap image_targets;
for (int usage_idx = 0; usage_idx <= static_cast<int>(gfx::BufferUsage::LAST);
++usage_idx) {
gfx::BufferUsage usage = static_cast<gfx::BufferUsage>(usage_idx);
for (int format_idx = 0;
format_idx <= static_cast<int>(gfx::BufferFormat::LAST);
++format_idx) {
gfx::BufferFormat format = static_cast<gfx::BufferFormat>(format_idx);
uint32_t target = gpu::GetImageTextureTarget(format, usage);
image_targets[std::make_pair(usage, format)] = target;
}
}
return image_targets;
}
} // namespace content