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ManagedTexture.h
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ManagedTexture.h
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/*
* Copyright (C) 2010, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef ManagedTexture_h
#define ManagedTexture_h
#include "IntSize.h"
#include "TextureManager.h"
#include <wtf/FastAllocBase.h>
#include <wtf/Noncopyable.h>
#include <wtf/PassOwnPtr.h>
#include <wtf/RefPtr.h>
namespace WebCore {
class GraphicsContext3D;
class ManagedTexture {
WTF_MAKE_NONCOPYABLE(ManagedTexture);
public:
static PassOwnPtr<ManagedTexture> create(TextureManager* manager)
{
return adoptPtr(new ManagedTexture(manager));
}
~ManagedTexture();
void clearManager() { m_textureManager = 0; }
bool isValid(const IntSize&, unsigned format);
bool reserve(const IntSize&, unsigned format);
void unreserve();
bool isReserved()
{
return m_textureManager && m_textureManager->isProtected(m_token);
}
void allocate(TextureAllocator*);
void bindTexture(GraphicsContext3D*, TextureAllocator*);
void framebufferTexture2D(GraphicsContext3D*, TextureAllocator*);
IntSize size() const { return m_size; }
unsigned format() const { return m_format; }
unsigned textureId() const { return m_textureId; }
// Steal token and textureId by instantiates a new texture using existing
// member variables.
PassOwnPtr<ManagedTexture> steal();
private:
explicit ManagedTexture(TextureManager*);
ManagedTexture(TextureManager*, TextureToken, IntSize, unsigned format, unsigned textureId);
TextureManager* m_textureManager;
TextureToken m_token;
IntSize m_size;
unsigned m_format;
unsigned m_textureId;
};
}
#endif // ManagedTexture_h