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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 "JSWebGLArrayBufferConstructor.h"
     31 
     32 #include "Document.h"
     33 #include "WebGLArrayBuffer.h"
     34 #include "JSWebGLArrayBuffer.h"
     35 
     36 namespace WebCore {
     37 
     38 using namespace JSC;
     39 
     40 const ClassInfo JSWebGLArrayBufferConstructor::s_info = { "WebGLArrayBufferConstructor", 0, 0, 0 };
     41 
     42 JSWebGLArrayBufferConstructor::JSWebGLArrayBufferConstructor(ExecState* exec, JSDOMGlobalObject* globalObject)
     43     : DOMConstructorObject(JSWebGLArrayBufferConstructor::createStructure(globalObject->objectPrototype()), globalObject)
     44 {
     45     putDirect(exec->propertyNames().prototype, JSWebGLArrayBufferPrototype::self(exec, globalObject), None);
     46     putDirect(exec->propertyNames().length, jsNumber(exec, 2), ReadOnly|DontDelete|DontEnum);
     47 }
     48 
     49 static JSObject* constructCanvasArrayBuffer(ExecState* exec, JSObject* constructor, const ArgList& args)
     50 {
     51     JSWebGLArrayBufferConstructor* jsConstructor = static_cast<JSWebGLArrayBufferConstructor*>(constructor);
     52 
     53     unsigned int size = 0;
     54     if (args.size() == 1) {
     55         size = (unsigned int)args.at(0).toInt32(exec);
     56         if (isnan(size))
     57             size = 0;
     58     }
     59     return asObject(toJS(exec, jsConstructor->globalObject(), WebGLArrayBuffer::create(size)));
     60 }
     61 
     62 JSC::ConstructType JSWebGLArrayBufferConstructor::getConstructData(JSC::ConstructData& constructData)
     63 {
     64     constructData.native.function = constructCanvasArrayBuffer;
     65     return ConstructTypeHost;
     66 }
     67 
     68 } // namespace WebCore
     69 
     70 #endif // ENABLE(3D_CANVAS)
     71