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-rw-r--r--WebCore/html/canvas/CanvasUnsignedByteArray.h86
1 files changed, 0 insertions, 86 deletions
diff --git a/WebCore/html/canvas/CanvasUnsignedByteArray.h b/WebCore/html/canvas/CanvasUnsignedByteArray.h
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--- a/WebCore/html/canvas/CanvasUnsignedByteArray.h
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-/*
- * Copyright (C) 2009 Apple 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 COMPUTER, INC. ``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 COMPUTER, INC. OR
- * 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 CanvasUnsignedByteArray_h
-#define CanvasUnsignedByteArray_h
-
-#include "CanvasArray.h"
-#include <limits>
-#include <wtf/MathExtras.h>
-#include <wtf/PassRefPtr.h>
-#include <wtf/RefCounted.h>
-
-namespace WebCore {
-
- class CanvasUnsignedByteArray : public CanvasArray {
- public:
- virtual bool isUnsignedByteArray() const { return true; }
-
- static PassRefPtr<CanvasUnsignedByteArray> create(unsigned length);
- static PassRefPtr<CanvasUnsignedByteArray> create(unsigned char* array, unsigned length);
- static PassRefPtr<CanvasUnsignedByteArray> create(PassRefPtr<CanvasArrayBuffer> buffer, int offset, unsigned length);
-
- unsigned char* data() { return static_cast<unsigned char*>(baseAddress()); }
-
- virtual unsigned length() const;
- virtual unsigned sizeInBytes() const;
-
- void set(unsigned index, double value)
- {
- if (index >= m_size)
- return;
- if (isnan(value)) // Clamp NaN to 0
- value = 0;
- if (value < std::numeric_limits<unsigned char>::min())
- value = std::numeric_limits<unsigned char>::min();
- else if (value > std::numeric_limits<unsigned char>::max())
- value = std::numeric_limits<unsigned char>::max();
- unsigned char* storage = static_cast<unsigned char*>(m_baseAddress);
- storage[index] = static_cast<unsigned char>(value);
- }
-
- bool get(unsigned index, unsigned char& result) const
- {
- if (index >= m_size)
- return false;
- result = item(index);
- return true;
- }
-
- unsigned char item(unsigned index) const
- {
- ASSERT(index < m_size);
- unsigned char* storage = static_cast<unsigned char*>(m_baseAddress);
- return storage[index];
- }
-
- private:
- CanvasUnsignedByteArray(PassRefPtr<CanvasArrayBuffer> buffer, int offset, unsigned length);
- unsigned m_size;
- };
-
-} // namespace WebCore
-
-#endif // CanvasUnsignedByteArray_h