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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.
*/
#include "config.h"
#if ENABLE(3D_CANVAS)
#include "CanvasArrayBuffer.h"
#include "CanvasUnsignedShortArray.h"
namespace WebCore {
PassRefPtr<CanvasUnsignedShortArray> CanvasUnsignedShortArray::create(unsigned length)
{
RefPtr<CanvasArrayBuffer> buffer = CanvasArrayBuffer::create(length * sizeof(unsigned short));
return create(buffer, 0, length);
}
PassRefPtr<CanvasUnsignedShortArray> CanvasUnsignedShortArray::create(unsigned short* array, unsigned length)
{
RefPtr<CanvasUnsignedShortArray> a = CanvasUnsignedShortArray::create(length);
for (unsigned i = 0; i < length; ++i)
a->set(i, array[i]);
return a;
}
PassRefPtr<CanvasUnsignedShortArray> CanvasUnsignedShortArray::create(PassRefPtr<CanvasArrayBuffer> buffer,
int offset,
unsigned length)
{
// Make sure the offset results in valid alignment.
if ((offset % sizeof(unsigned short)) != 0) {
return NULL;
}
if (buffer) {
// Check to make sure we are talking about a valid region of
// the given CanvasArrayBuffer's storage.
if ((offset + (length * sizeof(unsigned short))) > buffer->byteLength())
return NULL;
}
return adoptRef(new CanvasUnsignedShortArray(buffer, offset, length));
}
CanvasUnsignedShortArray::CanvasUnsignedShortArray(PassRefPtr<CanvasArrayBuffer> buffer,
int offset,
unsigned length)
: CanvasArray(buffer, offset)
, m_size(length)
{
}
unsigned CanvasUnsignedShortArray::length() const {
return m_size;
}
unsigned CanvasUnsignedShortArray::sizeInBytes() const {
return length() * sizeof(unsigned short);
}
}
#endif // ENABLE(3D_CANVAS)
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