Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 100 insertions, 0 deletions

diff --git a/Source/WebCore/platform/graphics/filters/FEComponentTransfer.h b/Source/WebCore/platform/graphics/filters/FEComponentTransfer.h
new file mode 100644
index 0000000..bbe3ebb
--- /dev/null
+++ b/Source/WebCore/platform/graphics/filters/FEComponentTransfer.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
+ * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
+ * Copyright (C) 2005 Eric Seidel <eric@webkit.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef FEComponentTransfer_h
+#define FEComponentTransfer_h
+
+#if ENABLE(FILTERS)
+#include "FilterEffect.h"
+
+#include "Filter.h"
+#include <wtf/Vector.h>
+
+namespace WebCore {
+
+enum ComponentTransferType {
+    FECOMPONENTTRANSFER_TYPE_UNKNOWN  = 0,
+    FECOMPONENTTRANSFER_TYPE_IDENTITY = 1,
+    FECOMPONENTTRANSFER_TYPE_TABLE    = 2,
+    FECOMPONENTTRANSFER_TYPE_DISCRETE = 3,
+    FECOMPONENTTRANSFER_TYPE_LINEAR   = 4,
+    FECOMPONENTTRANSFER_TYPE_GAMMA    = 5
+};
+
+struct ComponentTransferFunction {
+    ComponentTransferFunction()
+        : type(FECOMPONENTTRANSFER_TYPE_UNKNOWN)
+        , slope(0)
+        , intercept(0)
+        , amplitude(0)
+        , exponent(0)
+        , offset(0)
+    {
+    }
+
+    ComponentTransferType type;
+
+    float slope;
+    float intercept;
+    float amplitude;
+    float exponent;
+    float offset;
+
+    Vector<float> tableValues;
+};
+
+class FEComponentTransfer : public FilterEffect {
+public:
+    static PassRefPtr<FEComponentTransfer> create(Filter*, const ComponentTransferFunction& redFunc, const ComponentTransferFunction& greenFunc,
+                                                  const ComponentTransferFunction& blueFunc, const ComponentTransferFunction& alphaFunc);
+
+    ComponentTransferFunction redFunction() const;
+    void setRedFunction(const ComponentTransferFunction&);
+
+    ComponentTransferFunction greenFunction() const;
+    void setGreenFunction(const ComponentTransferFunction&);
+
+    ComponentTransferFunction blueFunction() const;
+    void setBlueFunction(const ComponentTransferFunction&);
+
+    ComponentTransferFunction alphaFunction() const;
+    void setAlphaFunction(const ComponentTransferFunction&);
+
+    virtual void apply();
+    virtual void dump();
+
+    virtual TextStream& externalRepresentation(TextStream&, int indention) const;
+
+private:
+    FEComponentTransfer(Filter*, const ComponentTransferFunction& redFunc, const ComponentTransferFunction& greenFunc,
+                        const ComponentTransferFunction& blueFunc, const ComponentTransferFunction& alphaFunc);
+
+    ComponentTransferFunction m_redFunc;
+    ComponentTransferFunction m_greenFunc;
+    ComponentTransferFunction m_blueFunc;
+    ComponentTransferFunction m_alphaFunc;
+};
+
+} // namespace WebCore
+
+#endif // ENABLE(FILTERS)
+
+#endif // FEComponentTransfer_h