Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 94 insertions, 0 deletions

diff --git a/Source/WebCore/platform/graphics/chromium/cc/CCTiledLayerImpl.h b/Source/WebCore/platform/graphics/chromium/cc/CCTiledLayerImpl.h
new file mode 100644
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+++ b/Source/WebCore/platform/graphics/chromium/cc/CCTiledLayerImpl.h
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+/*
+ * 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 CCTiledLayerImpl_h
+#define CCTiledLayerImpl_h
+
+#include "LayerTextureUpdater.h"
+#include "TransformationMatrix.h"
+#include "cc/CCLayerImpl.h"
+#include "cc/CCLayerTilingData.h"
+
+namespace WebCore {
+
+class DrawableTile;
+
+class CCTiledLayerImpl : public CCLayerImpl {
+public:
+    static PassRefPtr<CCTiledLayerImpl> create(int id)
+    {
+        return adoptRef(new CCTiledLayerImpl(id));
+    }
+    virtual ~CCTiledLayerImpl();
+
+    virtual void appendQuads(CCQuadList&, const CCSharedQuadState*);
+
+    virtual void bindContentsTexture(LayerRendererChromium*);
+
+    virtual void dumpLayerProperties(TextStream&, int indent) const;
+
+    void setSkipsDraw(bool skipsDraw) { m_skipsDraw = skipsDraw; }
+    void setTilingData(const CCLayerTilingData& tiler);
+    void syncTextureId(int, int, Platform3DObject textureId);
+
+    void setContentsSwizzled(bool contentsSwizzled) { m_contentsSwizzled = contentsSwizzled; }
+    bool contentsSwizzled() const { return m_contentsSwizzled; }
+
+    typedef ProgramBinding<VertexShaderTile, FragmentShaderRGBATexAlpha> Program;
+    // Shader program that swaps red and blue components of texture.
+    // Used when texture format does not match native color format.
+    typedef ProgramBinding<VertexShaderTile, FragmentShaderRGBATexSwizzleAlpha> ProgramSwizzle;
+
+    // Same as above but ignoring alpha and writing out 1.0 for the alpha channel.
+    typedef ProgramBinding<VertexShaderTile, FragmentShaderRGBATexOpaque> ProgramOpaque;
+    typedef ProgramBinding<VertexShaderTile, FragmentShaderRGBATexSwizzleOpaque> ProgramSwizzleOpaque;
+
+    // Shader program that produces anti-aliased layer edges.
+    typedef ProgramBinding<VertexShaderTile, FragmentShaderRGBATexClampAlphaAA> ProgramAA;
+    typedef ProgramBinding<VertexShaderTile, FragmentShaderRGBATexClampSwizzleAlphaAA> ProgramSwizzleAA;
+
+protected:
+    explicit CCTiledLayerImpl(int id);
+    // Exposed for testing.
+    bool hasTileAt(int, int) const;
+
+    virtual TransformationMatrix quadTransform() const;
+
+private:
+
+    virtual const char* layerTypeAsString() const { return "ContentLayer"; }
+
+    DrawableTile* tileAt(int, int) const;
+    DrawableTile* createTile(int, int);
+
+    bool m_skipsDraw;
+    bool m_contentsSwizzled;
+
+    OwnPtr<CCLayerTilingData> m_tiler;
+};
+
+}
+
+#endif // CCTiledLayerImpl_h