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      1 /*
      2  * Copyright (C) 2009 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 
     28 #if ENABLE(3D_CANVAS)
     29 
     30 #include "WebGLArrayBuffer.h"
     31 
     32 #include <wtf/RefPtr.h>
     33 
     34 namespace WebCore {
     35 
     36 PassRefPtr<WebGLArrayBuffer> WebGLArrayBuffer::create(unsigned sizeInBytes)
     37 {
     38     return adoptRef(new WebGLArrayBuffer(sizeInBytes));
     39 }
     40 
     41 PassRefPtr<WebGLArrayBuffer> WebGLArrayBuffer::create(WebGLArrayBuffer* other)
     42 {
     43     RefPtr<WebGLArrayBuffer> buffer = adoptRef(new WebGLArrayBuffer(other->byteLength()));
     44     memcpy(buffer->data(), other->data(), other->byteLength());
     45     return buffer.release();
     46 }
     47 
     48 WebGLArrayBuffer::WebGLArrayBuffer(unsigned sizeInBytes) {
     49     m_sizeInBytes = sizeInBytes;
     50     m_data = WTF::fastZeroedMalloc(sizeInBytes);
     51 }
     52 
     53 void* WebGLArrayBuffer::data() {
     54     return m_data;
     55 }
     56 
     57 const void* WebGLArrayBuffer::data() const {
     58     return m_data;
     59 }
     60 
     61 unsigned WebGLArrayBuffer::byteLength() const {
     62     return m_sizeInBytes;
     63 }
     64 
     65 WebGLArrayBuffer::~WebGLArrayBuffer() {
     66     WTF::fastFree(m_data);
     67 }
     68 
     69 }
     70 
     71 #endif // ENABLE(3D_CANVAS)
     72