| // 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/gl_context_nsview.h" |
| |
| #include <vector> |
| |
| #import <AppKit/NSOpenGL.h> |
| #import <AppKit/NSView.h> |
| |
| #include "base/debug/trace_event.h" |
| #include "base/logging.h" |
| #include "ui/gl/gl_surface_nsview.h" |
| |
| namespace gfx { |
| |
| GLContextNSView::GLContextNSView(GLShareGroup* group) |
| : GLContext(group) { |
| } |
| |
| GLContextNSView::~GLContextNSView() { |
| } |
| |
| bool GLContextNSView::Initialize(GLSurface* surface, |
| GpuPreference gpu_preference) { |
| DCHECK(!context_) << "NSGLContext was previously initialized."; |
| gpu_preference_ = gpu_preference; |
| |
| std::vector<NSOpenGLPixelFormatAttribute> attributes; |
| attributes.push_back(NSOpenGLPFAAccelerated); |
| attributes.push_back(NSOpenGLPFADoubleBuffer); |
| attributes.push_back(0); |
| |
| scoped_nsobject<NSOpenGLPixelFormat> pixel_format; |
| pixel_format.reset([[NSOpenGLPixelFormat alloc] |
| initWithAttributes:&attributes.front()]); |
| if (!pixel_format) { |
| LOG(ERROR) << "NSOpenGLPixelFormat initWithAttributes failed."; |
| return false; |
| } |
| |
| context_.reset([[NSOpenGLContext alloc] initWithFormat:pixel_format |
| shareContext:nil]); |
| if (!context_) { |
| LOG(ERROR) << "NSOpenGLContext initWithFormat failed"; |
| return false; |
| } |
| |
| return true; |
| } |
| |
| void GLContextNSView::Destroy() { |
| context_.reset(nil); |
| } |
| |
| bool GLContextNSView::MakeCurrent(GLSurface* surface) { |
| TRACE_EVENT0("gpu", "GLContextNSView::MakeCurrent"); |
| AcceleratedWidget view = |
| static_cast<AcceleratedWidget>(surface->GetHandle()); |
| // Only set the context's view if the view is parented. |
| // I.e. it is a valid drawable. |
| if ([view window]) |
| [context_ setView:view]; |
| [context_ makeCurrentContext]; |
| |
| SetCurrent(this, surface); |
| |
| if (!surface->OnMakeCurrent(this)) { |
| LOG(ERROR) << "Unable to make gl context current."; |
| return false; |
| } |
| |
| return true; |
| } |
| |
| void GLContextNSView::ReleaseCurrent(GLSurface* surface) { |
| [NSOpenGLContext clearCurrentContext]; |
| } |
| |
| bool GLContextNSView::IsCurrent(GLSurface* surface) { |
| return context_ == [NSOpenGLContext currentContext]; |
| } |
| |
| void* GLContextNSView::GetHandle() { |
| return context_; |
| } |
| |
| void GLContextNSView::SetSwapInterval(int interval) { |
| DCHECK(interval == 0 || interval == 1); |
| GLint swap = interval; |
| [context_ setValues:&swap forParameter:NSOpenGLCPSwapInterval]; |
| } |
| |
| void GLContextNSView::FlushBuffer() { |
| [context_ flushBuffer]; |
| } |
| |
| } // namespace gfx |