ui/gl/gl_context_mac.mm

   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 "base/basictypes.h"
   6 #include "base/debug/trace_event.h"
   7 #include "base/logging.h"
   8 #include "base/memory/scoped_ptr.h"
   9 #include "third_party/mesa/src/include/GL/osmesa.h"
  10 #include "ui/gl/gl_context_cgl.h"
  11 #include "ui/gl/gl_context_nsview.h"
  12 #include "ui/gl/gl_context_osmesa.h"
  13 #include "ui/gl/gl_context_stub.h"
  14 #include "ui/gl/gl_implementation.h"
  15 #include "ui/gl/gl_surface.h"
  16 #include "ui/gl/gl_switches.h"
  17
  18 namespace gfx {
  19
  20 class GLShareGroup;
  21
  22 scoped_refptr<GLContext> GLContext::CreateGLContext(
  23     GLShareGroup* share_group,
  24     GLSurface* compatible_surface,
  25     GpuPreference gpu_preference) {
  26   TRACE_EVENT0("gpu", "GLContext::CreateGLContext");
  27   switch (GetGLImplementation()) {
  28     case kGLImplementationDesktopGL:
  29     case kGLImplementationAppleGL: {
  30       scoped_refptr<GLContext> context;
  31       if (compatible_surface->IsOffscreen())
  32         context = new GLContextCGL(share_group);
  33       else
  34         context = new GLContextNSView(share_group);
  35       if (!context->Initialize(compatible_surface, gpu_preference))
  36         return NULL;
  37
  38       return context;
  39     }
  40     case kGLImplementationOSMesaGL: {
  41       scoped_refptr<GLContext> context(new GLContextOSMesa(share_group));
  42       if (!context->Initialize(compatible_surface, gpu_preference))
  43         return NULL;
  44
  45       return context;
  46     }
  47     case kGLImplementationMockGL:
  48       return new GLContextStub;
  49     default:
  50       NOTREACHED();
  51       return NULL;
  52   }
  53 }
  54
  55 }  // namespace gfx