| // Copyright 2016 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/init/gl_initializer.h" |
| |
| #include <OpenGL/CGLRenderers.h> |
| |
| #include <vector> |
| |
| #include "base/logging.h" |
| #include "ui/gl/gl_bindings.h" |
| #include "ui/gl/gl_implementation.h" |
| #include "ui/gl/gl_surface.h" |
| #include "ui/gl/gpu_switching_manager.h" |
| |
| namespace gl { |
| namespace init { |
| |
| namespace { |
| |
| bool InitializeOneOffForSandbox() { |
| static bool initialized = false; |
| if (initialized) |
| return true; |
| |
| // This is called from the sandbox warmup code on Mac OS X. |
| // GPU-related stuff is very slow without this, probably because |
| // the sandbox prevents loading graphics drivers or some such. |
| std::vector<CGLPixelFormatAttribute> attribs; |
| if (ui::GpuSwitchingManager::GetInstance()->SupportsDualGpus()) { |
| // Avoid switching to the discrete GPU just for this pixel |
| // format selection. |
| attribs.push_back(kCGLPFAAllowOfflineRenderers); |
| } |
| if (GetGLImplementation() == kGLImplementationAppleGL) { |
| attribs.push_back(kCGLPFARendererID); |
| attribs.push_back( |
| static_cast<CGLPixelFormatAttribute>(kCGLRendererGenericFloatID)); |
| } |
| attribs.push_back(static_cast<CGLPixelFormatAttribute>(0)); |
| |
| CGLPixelFormatObj format; |
| GLint num_pixel_formats; |
| if (CGLChoosePixelFormat(&attribs.front(), &format, &num_pixel_formats) != |
| kCGLNoError) { |
| LOG(ERROR) << "Error choosing pixel format."; |
| return false; |
| } |
| if (!format) { |
| LOG(ERROR) << "format == 0."; |
| return false; |
| } |
| CGLReleasePixelFormat(format); |
| DCHECK_NE(num_pixel_formats, 0); |
| initialized = true; |
| return true; |
| } |
| |
| } // namespace |
| |
| bool InitializeGLOneOffPlatform() { |
| switch (GetGLImplementation()) { |
| case kGLImplementationDesktopGL: |
| case kGLImplementationDesktopGLCoreProfile: |
| case kGLImplementationAppleGL: |
| if (!InitializeOneOffForSandbox()) { |
| LOG(ERROR) << "GLSurfaceCGL::InitializeOneOff failed."; |
| return false; |
| } |
| return true; |
| default: |
| return true; |
| } |
| } |
| |
| } // namespace init |
| } // namespace gl |