| // Copyright (c) 2017 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. |
| |
| // This file contains some useful utilities for the ui/gl classes. |
| |
| #include "ui/gl/gl_utils.h" |
| |
| #include "base/logging.h" |
| #include "ui/gl/gl_bindings.h" |
| #include "ui/gl/gl_features.h" |
| #include "ui/gl/gl_switches.h" |
| |
| #if defined(OS_ANDROID) |
| #include "base/posix/eintr_wrapper.h" |
| #include "third_party/libsync/src/include/sync/sync.h" |
| #endif |
| |
| namespace gl { |
| |
| // Used by chrome://gpucrash and gpu_benchmarking_extension's |
| // CrashForTesting. |
| void Crash() { |
| DVLOG(1) << "GPU: Simulating GPU crash"; |
| // Good bye, cruel world. |
| volatile int* it_s_the_end_of_the_world_as_we_know_it = nullptr; |
| *it_s_the_end_of_the_world_as_we_know_it = 0xdead; |
| } |
| |
| #if defined(OS_ANDROID) |
| base::ScopedFD MergeFDs(base::ScopedFD a, base::ScopedFD b) { |
| if (!a.is_valid()) |
| return b; |
| if (!b.is_valid()) |
| return a; |
| |
| base::ScopedFD merged(HANDLE_EINTR(sync_merge("", a.get(), b.get()))); |
| if (!merged.is_valid()) |
| LOG(ERROR) << "Failed to merge fences."; |
| return merged; |
| } |
| #endif |
| |
| bool UsePassthroughCommandDecoder(const base::CommandLine* command_line) { |
| std::string switch_value; |
| if (command_line->HasSwitch(switches::kUseCmdDecoder)) { |
| switch_value = command_line->GetSwitchValueASCII(switches::kUseCmdDecoder); |
| } |
| |
| if (switch_value == kCmdDecoderPassthroughName) { |
| return true; |
| } else if (switch_value == kCmdDecoderValidatingName) { |
| return false; |
| } else { |
| // Unrecognized or missing switch, use the default. |
| return base::FeatureList::IsEnabled( |
| features::kDefaultPassthroughCommandDecoder); |
| } |
| } |
| } |