| // 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 "ui/gl/gpu_switching_manager.h" |
| |
| #include "base/logging.h" |
| |
| namespace gfx { |
| |
| // static |
| GpuSwitchingManager* GpuSwitchingManager::GetInstance() { |
| return Singleton<GpuSwitchingManager>::get(); |
| } |
| |
| GpuSwitchingManager::GpuSwitchingManager() { |
| } |
| |
| GpuSwitchingManager::~GpuSwitchingManager() { |
| } |
| |
| void GpuSwitchingManager::ForceUseOfIntegratedGpu() { |
| gpu_switching_option_.clear(); |
| gpu_switching_option_.push_back(PreferIntegratedGpu); |
| } |
| |
| void GpuSwitchingManager::ForceUseOfDiscreteGpu() { |
| gpu_switching_option_.clear(); |
| gpu_switching_option_.push_back(PreferDiscreteGpu); |
| } |
| |
| GpuPreference GpuSwitchingManager::AdjustGpuPreference( |
| GpuPreference gpu_preference) { |
| if (gpu_switching_option_.size() == 0) |
| return gpu_preference; |
| DCHECK_EQ(gpu_switching_option_.size(), 1u); |
| #if defined(OS_MACOSX) |
| // Create a pixel format that lasts the lifespan of Chrome, so Chrome |
| // stays on the discrete GPU. |
| if (gpu_switching_option_[0] == PreferDiscreteGpu) |
| GLContextCGL::ForceUseOfDiscreteGPU(); |
| #endif // OS_MACOSX |
| return gpu_switching_option_[0]; |
| } |
| |
| } // namespace gfx |
| |