| // Copyright 2014 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. |
| |
| #ifndef UI_GL_SCOPED_CGL_H_ |
| #define UI_GL_SCOPED_CGL_H_ |
| |
| #include <OpenGL/OpenGL.h> |
| |
| #include "base/mac/scoped_typeref.h" |
| #include "base/macros.h" |
| #include "ui/gl/gl_export.h" |
| |
| namespace base { |
| |
| template<> |
| struct ScopedTypeRefTraits<CGLContextObj> { |
| static CGLContextObj InvalidValue() { return nullptr; } |
| static CGLContextObj Retain(CGLContextObj object) { |
| return CGLRetainContext(object); |
| } |
| static void Release(CGLContextObj object) { |
| CGLReleaseContext(object); |
| } |
| }; |
| |
| template<> |
| struct ScopedTypeRefTraits<CGLPixelFormatObj> { |
| static CGLPixelFormatObj InvalidValue() { return nullptr; } |
| static CGLPixelFormatObj Retain(CGLPixelFormatObj object) { |
| return CGLRetainPixelFormat(object); |
| } |
| static void Release(CGLPixelFormatObj object) { |
| CGLReleasePixelFormat(object); |
| } |
| }; |
| |
| } // namespace base |
| |
| namespace gl { |
| |
| class GL_EXPORT ScopedCGLSetCurrentContext { |
| public: |
| explicit ScopedCGLSetCurrentContext(CGLContextObj context); |
| ~ScopedCGLSetCurrentContext(); |
| private: |
| // Note that if a context is destroyed when it is current, then the current |
| // context is changed to NULL. Take out a reference on |previous_context_| to |
| // preserve this behavior (when this falls out of scope, |previous_context_| |
| // will be made current, then released, so NULL will be current if that |
| // release destroys the context). |
| base::ScopedTypeRef<CGLContextObj> previous_context_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ScopedCGLSetCurrentContext); |
| }; |
| |
| } // namespace gl |
| |
| #endif // UI_GL_SCOPED_CGL_H_ |