Index: ui/gl/init/gl_initializer_mac.cc |
diff --git a/ui/gl/init/gl_initializer_mac.cc b/ui/gl/init/gl_initializer_mac.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..d62a47c5b1e40b64fb55bb2c95e6513ebb65fa8e |
--- /dev/null |
+++ b/ui/gl/init/gl_initializer_mac.cc |
@@ -0,0 +1,78 @@ |
+// 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 |