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// Copyright (c) 2011 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 <string>
#include "base/command_line.h"
#include "base/logging.h"
#include "ui/gfx/gl/gl_context.h"
#include "ui/gfx/gl/gl_bindings.h"
#include "ui/gfx/gl/gl_implementation.h"
#include "ui/gfx/gl/gl_switches.h"
namespace gfx {
GLContext::GLContext() {
}
GLContext::~GLContext() {
}
std::string GLContext::GetExtensions() {
DCHECK(IsCurrent(NULL));
const char* ext = reinterpret_cast<const char*>(glGetString(GL_EXTENSIONS));
return std::string(ext ? ext : "");
}
bool GLContext::HasExtension(const char* name) {
std::string extensions = GetExtensions();
extensions += " ";
std::string delimited_name(name);
delimited_name += " ";
return extensions.find(delimited_name) != std::string::npos;
}
bool GLContext::LosesAllContextsOnContextLost()
{
switch (GetGLImplementation()) {
case kGLImplementationDesktopGL:
return false;
case kGLImplementationEGLGLES2:
return true;
case kGLImplementationOSMesaGL:
return false;
case kGLImplementationMockGL:
return false;
default:
NOTREACHED();
return true;
}
}
} // namespace gfx
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