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// Copyright 2014 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.
#ifndef Extensions3DUtil_h
#define Extensions3DUtil_h
#include "platform/PlatformExport.h"
#include "platform/graphics/GraphicsTypes3D.h"
#include "third_party/khronos/GLES2/gl2.h"
#include "third_party/khronos/GLES2/gl2ext.h"
#include "wtf/Allocator.h"
#include "wtf/HashSet.h"
#include "wtf/Noncopyable.h"
#include "wtf/text/StringHash.h"
#include "wtf/text/WTFString.h"
namespace gpu {
namespace gles2 {
class GLES2Interface;
}
}
namespace blink {
class PLATFORM_EXPORT Extensions3DUtil final {
USING_FAST_MALLOC(Extensions3DUtil);
WTF_MAKE_NONCOPYABLE(Extensions3DUtil);
public:
// Creates a new Extensions3DUtil. If the passed GLES2Interface has been spontaneously lost, returns null.
static PassOwnPtr<Extensions3DUtil> create(gpu::gles2::GLES2Interface*);
~Extensions3DUtil();
bool isValid() { return m_isValid; }
bool supportsExtension(const String& name);
bool ensureExtensionEnabled(const String& name);
bool isExtensionEnabled(const String& name);
static bool canUseCopyTextureCHROMIUM(GLenum destTarget, GLenum destFormat, GLenum destType, GLint level);
private:
Extensions3DUtil(gpu::gles2::GLES2Interface*);
void initializeExtensions();
gpu::gles2::GLES2Interface* m_gl;
HashSet<String> m_enabledExtensions;
HashSet<String> m_requestableExtensions;
bool m_isValid;
};
} // namespace blink
#endif // Extensions3DUtil_h
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