| /* |
| * 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 >= m_byteLength || 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 |