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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "ui/gl/gl_share_group.h"
      6 
      7 #include "base/logging.h"
      8 #include "ui/gl/gl_context.h"
      9 
     10 namespace gfx {
     11 
     12 GLShareGroup::GLShareGroup()
     13     : shared_context_(NULL)
     14 #if defined(OS_MACOSX)
     15     , renderer_id_(-1)
     16 #endif
     17     {
     18 }
     19 
     20 void GLShareGroup::AddContext(GLContext* context) {
     21   contexts_.insert(context);
     22 }
     23 
     24 void GLShareGroup::RemoveContext(GLContext* context) {
     25   contexts_.erase(context);
     26   if (shared_context_ == context)
     27     shared_context_ = NULL;
     28 }
     29 
     30 void* GLShareGroup::GetHandle() {
     31   GLContext* context = GetContext();
     32   if (context)
     33     return context->GetHandle();
     34 
     35   return NULL;
     36 }
     37 
     38 GLContext* GLShareGroup::GetContext() {
     39   for (ContextSet::iterator it = contexts_.begin();
     40        it != contexts_.end();
     41        ++it) {
     42     if ((*it)->GetHandle())
     43       return *it;
     44   }
     45 
     46   return NULL;
     47 }
     48 
     49 void GLShareGroup::SetSharedContext(GLContext* context) {
     50   DCHECK(contexts_.find(context) != contexts_.end());
     51   shared_context_ = context;
     52 }
     53 
     54 GLContext* GLShareGroup::GetSharedContext() {
     55   return shared_context_;
     56 }
     57 
     58 #if defined(OS_MACOSX)
     59 void GLShareGroup::SetRendererID(int renderer_id) {
     60   renderer_id_ = renderer_id;
     61 }
     62 
     63 int GLShareGroup::GetRendererID() {
     64   return renderer_id_;
     65 }
     66 #endif
     67 
     68 GLShareGroup::~GLShareGroup() {
     69 }
     70 
     71 }  // namespace gfx
     72