src/ui/gl/gl_surface_mac.cc

   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
  17 #if defined(USE_AURA)
  18 #include "ui/gl/gl_surface_nsview.h"
  19 #endif
  20
  21 namespace gfx {
  22
  23 bool GLSurface::InitializeOneOffInternal() {
  24   switch (GetGLImplementation()) {
  25     case kGLImplementationDesktopGL:
  26     case kGLImplementationAppleGL:
  27       if (!GLSurfaceCGL::InitializeOneOff()) {
  28         LOG(ERROR) << "GLSurfaceCGL::InitializeOneOff failed.";
  29         return false;
  30       }
  31       break;
  32     default:
  33       break;
  34   }
  35   return true;
  36 }
  37
  38 scoped_refptr<GLSurface> GLSurface::CreateViewGLSurface(
  39     gfx::AcceleratedWidget window) {
  40   TRACE_EVENT0("gpu", "GLSurface::CreateViewGLSurface");
  41 #if defined(USE_AURA)
  42   switch (GetGLImplementation()) {
  43     case kGLImplementationDesktopGL:
  44     case kGLImplementationAppleGL: {
  45       scoped_refptr<GLSurface> surface(new GLSurfaceNSView(window));
  46       if (!surface->Initialize())
  47         return NULL;
  48
  49       return surface;
  50     }
  51     case kGLImplementationMockGL:
  52       return new GLSurfaceStub;
  53     default:
  54       NOTREACHED();
  55       return NULL;
  56   }
  57 #else
  58   return CreateOffscreenGLSurface(gfx::Size(1, 1));
  59 #endif
  60 }
  61
  62 scoped_refptr<GLSurface> GLSurface::CreateOffscreenGLSurface(
  63     const gfx::Size& size) {
  64   TRACE_EVENT0("gpu", "GLSurface::CreateOffscreenGLSurface");
  65   switch (GetGLImplementation()) {
  66     case kGLImplementationOSMesaGL: {
  67       scoped_refptr<GLSurface> surface(new GLSurfaceOSMesa(OSMESA_RGBA,
  68                                                            size));
  69       if (!surface->Initialize())
  70         return NULL;
  71
  72       return surface;
  73     }
  74     case kGLImplementationDesktopGL:
  75     case kGLImplementationAppleGL: {
  76       scoped_refptr<GLSurface> surface(new NoOpGLSurfaceCGL(size));
  77       if (!surface->Initialize())
  78         return NULL;
  79
  80       return surface;
  81     }
  82     case kGLImplementationMockGL:
  83       return new GLSurfaceStub;
  84     default:
  85       NOTREACHED();
  86       return NULL;
  87   }
  88 }
  89
  90 }  // namespace gfx