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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_surface.h"
      6 
      7 #include "base/debug/trace_event.h"
      8 #include "base/logging.h"
      9 #include "base/memory/scoped_ptr.h"
     10 #include "third_party/mesa/src/include/GL/osmesa.h"
     11 #include "ui/gl/gl_bindings.h"
     12 #include "ui/gl/gl_implementation.h"
     13 #include "ui/gl/gl_surface_cgl.h"
     14 #include "ui/gl/gl_surface_osmesa.h"
     15 #include "ui/gl/gl_surface_stub.h"
     16 #include "ui/gl/gl_surface_nsview.h"
     17 
     18 namespace gfx {
     19 
     20 bool GLSurface::InitializeOneOffInternal() {
     21   switch (GetGLImplementation()) {
     22     case kGLImplementationDesktopGL:
     23     case kGLImplementationAppleGL:
     24       if (!GLSurfaceCGL::InitializeOneOff()) {
     25         LOG(ERROR) << "GLSurfaceCGL::InitializeOneOff failed.";
     26         return false;
     27       }
     28       break;
     29     default:
     30       break;
     31   }
     32   return true;
     33 }
     34 
     35 scoped_refptr<GLSurface> GLSurface::CreateViewGLSurface(
     36     gfx::AcceleratedWidget window) {
     37   TRACE_EVENT0("gpu", "GLSurface::CreateViewGLSurface");
     38   switch (GetGLImplementation()) {
     39     case kGLImplementationDesktopGL:
     40     case kGLImplementationAppleGL: {
     41       scoped_refptr<GLSurface> surface(new GLSurfaceNSView(window));
     42       if (!surface->Initialize())
     43         return NULL;
     44 
     45       return surface;
     46     }
     47     case kGLImplementationMockGL:
     48       return new GLSurfaceStub;
     49     default:
     50       NOTREACHED();
     51       return NULL;
     52   }
     53 }
     54 
     55 scoped_refptr<GLSurface> GLSurface::CreateOffscreenGLSurface(
     56     const gfx::Size& size) {
     57   TRACE_EVENT0("gpu", "GLSurface::CreateOffscreenGLSurface");
     58   switch (GetGLImplementation()) {
     59     case kGLImplementationOSMesaGL: {
     60       scoped_refptr<GLSurface> surface(new GLSurfaceOSMesa(OSMESA_RGBA,
     61                                                            size));
     62       if (!surface->Initialize())
     63         return NULL;
     64 
     65       return surface;
     66     }
     67     case kGLImplementationDesktopGL:
     68     case kGLImplementationAppleGL: {
     69       scoped_refptr<GLSurface> surface(new NoOpGLSurfaceCGL(size));
     70       if (!surface->Initialize())
     71         return NULL;
     72 
     73       return surface;
     74     }
     75     case kGLImplementationMockGL:
     76       return new GLSurfaceStub;
     77     default:
     78       NOTREACHED();
     79       return NULL;
     80   }
     81 }
     82 
     83 }  // namespace gfx
     84