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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 JSWebGLArrayBufferConstructor_h
#define JSWebGLArrayBufferConstructor_h
#include "JSDOMBinding.h"
#include "JSDocument.h"
#include "JSWebGLArrayBuffer.h"
#include <runtime/Error.h>
namespace WebCore {
class WebGLArray;
// Template function used by CanvasXXXArrayConstructors
template<class C, typename T>
PassRefPtr<WebGLArray> construct(JSC::ExecState* exec, const JSC::ArgList& args)
{
// There are 3 constructors:
//
// 1) (in int size)
// 2) (in WebGLArrayBuffer buffer, [Optional] in int offset, [Optional] in unsigned int length)
// 3) (in sequence<T>) - This ends up being a JS "array-like" object
//
RefPtr<C> arrayObject;
// For the 0 args case, just create an object without a buffer
if (args.size() < 1)
return C::create(0, 0, 0);
if (args.at(0).isObject()) {
RefPtr<WebGLArrayBuffer> buffer = toWebGLArrayBuffer(args.at(0));
if (buffer) {
int offset = (args.size() > 1) ? args.at(1).toInt32(exec) : 0;
unsigned int length = (args.size() > 2) ? static_cast<unsigned int>(args.at(2).toInt32(exec)) : 0;
return C::create(buffer, offset, length);
}
JSC::JSObject* array = asObject(args.at(0));
int length = array->get(exec, JSC::Identifier(exec, "length")).toInt32(exec);
void* tempValues;
if (!tryFastMalloc(length * sizeof(T)).getValue(tempValues)) {
throwError(exec, JSC::GeneralError);
return 0;
}
OwnFastMallocPtr<T> values(static_cast<T*>(tempValues));
for (int i = 0; i < length; ++i) {
JSC::JSValue v = array->get(exec, i);
if (exec->hadException())
return 0;
values.get()[i] = static_cast<T>(v.toNumber(exec));
}
return C::create(values.get(), length);
}
unsigned size = static_cast<unsigned>(args.at(0).toInt32(exec));
return C::create(size);
}
class JSWebGLArrayBufferConstructor : public DOMConstructorObject {
public:
JSWebGLArrayBufferConstructor(JSC::ExecState*, JSDOMGlobalObject*);
static const JSC::ClassInfo s_info;
private:
virtual JSC::ConstructType getConstructData(JSC::ConstructData&);
virtual const JSC::ClassInfo* classInfo() const { return &s_info; }
};
}
#endif // JSWebGLArrayBufferConstructor_h
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