/* * 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 "CanvasShortArray.h" namespace WebCore { PassRefPtr CanvasShortArray::create(unsigned length) { RefPtr buffer = CanvasArrayBuffer::create(length * sizeof(short)); return create(buffer, 0, length); } PassRefPtr CanvasShortArray::create(short* array, unsigned length) { RefPtr a = CanvasShortArray::create(length); for (unsigned i = 0; i < length; ++i) a->set(i, array[i]); return a; } PassRefPtr CanvasShortArray::create(PassRefPtr buffer, int offset, unsigned length) { // Make sure the offset results in valid alignment. if ((offset % sizeof(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(short))) > buffer->byteLength()) return NULL; } return adoptRef(new CanvasShortArray(buffer, offset, length)); } CanvasShortArray::CanvasShortArray(PassRefPtr buffer, int offset, unsigned length) : CanvasArray(buffer, offset) , m_size(length) { } unsigned CanvasShortArray::length() const { return m_size; } unsigned CanvasShortArray::sizeInBytes() const { return length() * sizeof(short); } } #endif // ENABLE(3D_CANVAS)