Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 92 insertions, 0 deletions

diff --git a/Source/WebCore/html/canvas/DataView.h b/Source/WebCore/html/canvas/DataView.h
new file mode 100755
index 0000000..5707aa3
--- /dev/null
+++ b/Source/WebCore/html/canvas/DataView.h
@@ -0,0 +1,92 @@
+/*
+ * 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 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 DataView_h
+#define DataView_h
+
+#include "ArrayBufferView.h"
+#include "ExceptionCode.h"
+#include <wtf/PassRefPtr.h>
+
+namespace WebCore {
+
+class DataView : public ArrayBufferView {
+public:
+    static PassRefPtr<DataView> create(PassRefPtr<ArrayBuffer>, unsigned byteOffset, unsigned byteLength);
+
+    virtual bool isDataView() const { return true; }
+    virtual unsigned length() const { return m_byteLength; }
+    virtual unsigned byteLength() const { return m_byteLength; }
+    virtual PassRefPtr<ArrayBufferView> slice(int, int) const { return 0; }
+
+    int8_t getInt8(unsigned byteOffset, ExceptionCode&);
+    uint8_t getUint8(unsigned byteOffset, ExceptionCode&);
+    int16_t getInt16(unsigned byteOffset, ExceptionCode& ec) { return getInt16(byteOffset, false, ec); }
+    int16_t getInt16(unsigned byteOffset, bool littleEndian, ExceptionCode&);
+    uint16_t getUint16(unsigned byteOffset, ExceptionCode& ec) { return getUint16(byteOffset, false, ec); }
+    uint16_t getUint16(unsigned byteOffset, bool littleEndian, ExceptionCode&);
+    int32_t getInt32(unsigned byteOffset, ExceptionCode& ec) { return getInt32(byteOffset, false, ec); }
+    int32_t getInt32(unsigned byteOffset, bool littleEndian, ExceptionCode&);
+    uint32_t getUint32(unsigned byteOffset, ExceptionCode& ec) { return getUint32(byteOffset, false, ec); }
+    uint32_t getUint32(unsigned byteOffset, bool littleEndian, ExceptionCode&);
+    float getFloat32(unsigned byteOffset, ExceptionCode& ec) { return getFloat32(byteOffset, false, ec); }
+    float getFloat32(unsigned byteOffset, bool littleEndian, ExceptionCode&);
+    double getFloat64(unsigned byteOffset, ExceptionCode& ec) { return getFloat64(byteOffset, false, ec); }
+    double getFloat64(unsigned byteOffset, bool littleEndian, ExceptionCode&);
+
+    void setInt8(unsigned byteOffset, int8_t value, ExceptionCode&);
+    void setUint8(unsigned byteOffset, uint8_t value, ExceptionCode&);
+    void setInt16(unsigned byteOffset, int16_t value, ExceptionCode& ec) { setInt16(byteOffset, value, false, ec); }
+    void setInt16(unsigned byteOffset, int16_t value, bool littleEndian, ExceptionCode&);
+    void setUint16(unsigned byteOffset, uint16_t value, ExceptionCode& ec) { setUint16(byteOffset, value, false, ec); }
+    void setUint16(unsigned byteOffset, uint16_t value, bool littleEndian, ExceptionCode&);
+    void setInt32(unsigned byteOffset, int32_t value, ExceptionCode& ec) { setInt32(byteOffset, value, false, ec); } 
+    void setInt32(unsigned byteOffset, int32_t value, bool littleEndian, ExceptionCode&);
+    void setUint32(unsigned byteOffset, uint32_t value, ExceptionCode& ec) { setUint32(byteOffset, value, false, ec); }
+    void setUint32(unsigned byteOffset, uint32_t value, bool littleEndian, ExceptionCode&);
+    void setFloat32(unsigned byteOffset, float value, ExceptionCode& ec) { setFloat32(byteOffset, value, false, ec); }
+    void setFloat32(unsigned byteOffset, float value, bool littleEndian, ExceptionCode&);
+    void setFloat64(unsigned byteOffset, double value, ExceptionCode& ec) { setFloat64(byteOffset, value, false, ec); }
+    void setFloat64(unsigned byteOffset, double value, bool littleEndian, ExceptionCode&);
+
+private:
+    DataView(PassRefPtr<ArrayBuffer>, unsigned byteOffset, unsigned byteLength);
+
+    template<typename T>
+    inline bool beyondRange(unsigned byteOffset) const { return byteOffset + sizeof(T) > m_byteLength; }
+
+    template<typename T>
+    T getData(unsigned byteOffset, bool littleEndian, ExceptionCode&) const;
+
+    template<typename T>
+    void setData(unsigned byteOffset, T value, bool littleEndian, ExceptionCode&);
+
+    unsigned m_byteLength;
+};
+
+
+} // namespace WebCore
+
+#endif // DataView_h