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_osmesa.h" 12 #include "ui/gl/gl_context_stub.h" 13 #include "ui/gl/gl_implementation.h" 14 #include "ui/gl/gl_surface.h" 15 #include "ui/gl/gl_switches.h" 16 17 namespace gfx { 18 19 class GLShareGroup; 20 21 scoped_refptr<GLContext> GLContext::CreateGLContext( 22 GLShareGroup* share_group, 23 GLSurface* compatible_surface, 24 GpuPreference gpu_preference) { 25 TRACE_EVENT0("gpu", "GLContext::CreateGLContext"); 26 switch (GetGLImplementation()) { 27 case kGLImplementationDesktopGL: 28 case kGLImplementationAppleGL: { 29 scoped_refptr<GLContext> context; 30 // Note that with virtualization we might still be able to make current 31 // a different onscreen surface with this context later. But we should 32 // always be creating the context with an offscreen surface first. 33 DCHECK(compatible_surface->IsOffscreen()); 34 context = new GLContextCGL(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 56
