Initial import attempt, just to play with. Many things disabled/removed

ui/cc/ManagedTexture.h

+/*
+ * 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 CCGraphicsContext;
+
+class ManagedTexture {
+    WTF_MAKE_NONCOPYABLE(ManagedTexture);
+public:
+    static PassOwnPtr<ManagedTexture> create(TextureManager* manager)
+    {
+        return adoptPtr(new ManagedTexture(manager));
+    }
+    ~ManagedTexture();
+
+    void setTextureManager(TextureManager*);
+    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(CCGraphicsContext*, 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);
+
+    void clear();
+
+    TextureManager* m_textureManager;
+    TextureToken m_token;
+    IntSize m_size;
+    unsigned m_format;
+    unsigned m_textureId;
+};
+
+}
+
+#endif // ManagedTexture_h