Here are gyp targets and stubs for compiling libcc and the webkit_compositor bindings in chromium. Everything is guarded behind the off-by-default use_libcc_for_compositor gyp variable. I haven't included the actual code here, but there are scripts to sync. I plan to land + manually sync the code into place until we're ready to flip the gyp switch.

Snapshot from r126652

BUG=

Review URL: https://chromiumcodereview.appspot.com/10828381

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@153354 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 106 insertions, 0 deletions

diff --git a/cc/TiledLayerChromium.h b/cc/TiledLayerChromium.h
new file mode 100644
index 0000000..c7f57f0
--- /dev/null
+++ b/cc/TiledLayerChromium.h
@@ -0,0 +1,106 @@
+// Copyright 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.
+
+#ifndef TiledLayerChromium_h
+#define TiledLayerChromium_h
+
+#if USE(ACCELERATED_COMPOSITING)
+
+#include "CCLayerTilingData.h"
+#include "LayerChromium.h"
+#include "LayerTextureUpdater.h"
+
+namespace WebCore {
+class UpdatableTile;
+
+class TiledLayerChromium : public LayerChromium {
+public:
+    enum TilingOption { AlwaysTile, NeverTile, AutoTile };
+
+    virtual ~TiledLayerChromium();
+
+    virtual void setIsMask(bool) OVERRIDE;
+
+    virtual void pushPropertiesTo(CCLayerImpl*) OVERRIDE;
+
+    virtual bool drawsContent() const OVERRIDE;
+    virtual bool needsContentsScale() const OVERRIDE;
+
+    virtual IntSize contentBounds() const OVERRIDE;
+
+    virtual void setNeedsDisplayRect(const FloatRect&) OVERRIDE;
+
+    virtual void setUseLCDText(bool) OVERRIDE;
+
+    virtual void setLayerTreeHost(CCLayerTreeHost*) OVERRIDE;
+
+    virtual void setTexturePriorities(const CCPriorityCalculator&) OVERRIDE;
+
+    virtual Region visibleContentOpaqueRegion() const OVERRIDE;
+
+    virtual void update(CCTextureUpdateQueue&, const CCOcclusionTracker*, CCRenderingStats&) OVERRIDE;
+
+protected:
+    TiledLayerChromium();
+
+    void updateTileSizeAndTilingOption();
+    void updateBounds();
+
+    // Exposed to subclasses for testing.
+    void setTileSize(const IntSize&);
+    void setTextureFormat(GC3Denum textureFormat) { m_textureFormat = textureFormat; }
+    void setBorderTexelOption(CCLayerTilingData::BorderTexelOption);
+    void setSampledTexelFormat(LayerTextureUpdater::SampledTexelFormat sampledTexelFormat) { m_sampledTexelFormat = sampledTexelFormat; }
+    size_t numPaintedTiles() { return m_tiler->tiles().size(); }
+
+    virtual LayerTextureUpdater* textureUpdater() const = 0;
+    virtual void createTextureUpdaterIfNeeded() = 0;
+
+    // Set invalidations to be potentially repainted during update().
+    void invalidateContentRect(const IntRect& contentRect);
+
+    // Reset state on tiles that will be used for updating the layer.
+    void resetUpdateState();
+
+    // After preparing an update, returns true if more painting is needed.
+    bool needsIdlePaint();
+    IntRect idlePaintRect();
+
+    bool skipsDraw() const { return m_skipsDraw; }
+
+    // Virtual for testing
+    virtual CCPrioritizedTextureManager* textureManager() const;
+
+private:
+    virtual PassOwnPtr<CCLayerImpl> createCCLayerImpl() OVERRIDE;
+
+    void createTilerIfNeeded();
+    void setTilingOption(TilingOption);
+
+    bool tileOnlyNeedsPartialUpdate(UpdatableTile*);
+    bool tileNeedsBufferedUpdate(UpdatableTile*);
+
+    void markOcclusionsAndRequestTextures(int left, int top, int right, int bottom, const CCOcclusionTracker*);
+
+    bool updateTiles(int left, int top, int right, int bottom, CCTextureUpdateQueue&, const CCOcclusionTracker*, CCRenderingStats&, bool& didPaint);
+    bool haveTexturesForTiles(int left, int top, int right, int bottom, bool ignoreOcclusions);
+    IntRect markTilesForUpdate(int left, int top, int right, int bottom, bool ignoreOcclusions);
+    void updateTileTextures(const IntRect& paintRect, int left, int top, int right, int bottom, CCTextureUpdateQueue&, const CCOcclusionTracker*, CCRenderingStats&);
+
+    UpdatableTile* tileAt(int, int) const;
+    UpdatableTile* createTile(int, int);
+
+    GC3Denum m_textureFormat;
+    bool m_skipsDraw;
+    bool m_failedUpdate;
+    LayerTextureUpdater::SampledTexelFormat m_sampledTexelFormat;
+
+    TilingOption m_tilingOption;
+    OwnPtr<CCLayerTilingData> m_tiler;
+};
+
+}
+#endif // USE(ACCELERATED_COMPOSITING)
+
+#endif