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

ui/cc/LayerTextureSubImage.h

+/*
+ * Copyright (C) 2011 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 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 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 LayerTextureSubImage_h
+#define LayerTextureSubImage_h
+
+#if USE(ACCELERATED_COMPOSITING)
+
+#include "GraphicsTypes3D.h"
+#include "IntRect.h"
+#include "IntSize.h"
+#include <wtf/OwnArrayPtr.h>
+
+namespace WebCore {
+
+class CCGraphicsContext;
+
+class LayerTextureSubImage {
+public:
+    explicit LayerTextureSubImage(bool useMapSubForUpload);
+    ~LayerTextureSubImage();
+
+    void setSubImageSize(const IntSize&);
+    void upload(const uint8_t* image, const IntRect& imageRect,
+                const IntRect& sourceRect, const IntRect& destRect,
+                GC3Denum format, CCGraphicsContext*);
+
+private:
+    void uploadWithTexSubImage(const uint8_t* image, const IntRect& imageRect,
+                               const IntRect& sourceRect, const IntRect& destRect,
+                               GC3Denum format, CCGraphicsContext*);
+    void uploadWithMapTexSubImage(const uint8_t* image, const IntRect& imageRect,
+                                  const IntRect& sourceRect, const IntRect& destRect,
+                                  GC3Denum format, CCGraphicsContext*);
+
+    bool m_useMapTexSubImage;
+    IntSize m_subImageSize;
+    OwnArrayPtr<uint8_t> m_subImage;
+};
+
+} // namespace WebCore
+#endif // USE(ACCELERATED_COMPOSITING)
+#endif // LayerTextureSubImage_h