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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/basictypes.h"
#include "base/logging.h"
#include "base/memory/scoped_ptr.h"
#include "base/trace_event/trace_event.h"
#include "ui/gl/gl_context_cgl.h"
#include "ui/gl/gl_context_osmesa.h"
#include "ui/gl/gl_context_stub.h"
#include "ui/gl/gl_implementation.h"
#include "ui/gl/gl_surface.h"
#include "ui/gl/gl_switches.h"
namespace gfx {
class GLShareGroup;
scoped_refptr<GLContext> GLContext::CreateGLContext(
GLShareGroup* share_group,
GLSurface* compatible_surface,
GpuPreference gpu_preference) {
TRACE_EVENT0("gpu", "GLContext::CreateGLContext");
switch (GetGLImplementation()) {
case kGLImplementationDesktopGL:
case kGLImplementationDesktopGLCoreProfile:
case kGLImplementationAppleGL: {
scoped_refptr<GLContext> context;
// Note that with virtualization we might still be able to make current
// a different onscreen surface with this context later. But we should
// always be creating the context with an offscreen surface first.
DCHECK(compatible_surface->IsOffscreen());
context = new GLContextCGL(share_group);
if (!context->Initialize(compatible_surface, gpu_preference))
return NULL;
return context;
}
case kGLImplementationOSMesaGL: {
scoped_refptr<GLContext> context(new GLContextOSMesa(share_group));
if (!context->Initialize(compatible_surface, gpu_preference))
return NULL;
return context;
}
case kGLImplementationMockGL:
return new GLContextStub;
default:
NOTREACHED();
return NULL;
}
}
} // namespace gfx
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