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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QV4TYPEDARRAY_H
#define QV4TYPEDARRAY_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qv4object_p.h"
#include "qv4functionobject_p.h"
#include "qv4arraybuffer_p.h"
QT_BEGIN_NAMESPACE
namespace QV4 {
struct ArrayBuffer;
typedef ReturnedValue (*TypedArrayRead)(const char *data, int index);
typedef void (*TypedArrayWrite)(ExecutionEngine *engine, char *data, int index, const Value &value);
struct TypedArrayOperations {
int bytesPerElement;
const char *name;
TypedArrayRead read;
TypedArrayWrite write;
};
namespace Heap {
struct TypedArray : Object {
enum Type {
Int8Array,
UInt8Array,
UInt8ClampedArray,
Int16Array,
UInt16Array,
Int32Array,
UInt32Array,
Float32Array,
Float64Array,
NTypes
};
TypedArray(Type t);
const TypedArrayOperations *type;
Pointer<ArrayBuffer> buffer;
uint byteLength;
uint byteOffset;
Type arrayType;
};
struct TypedArrayCtor : FunctionObject {
TypedArrayCtor(QV4::ExecutionContext *scope, TypedArray::Type t);
TypedArray::Type type;
};
struct TypedArrayPrototype : Object {
inline TypedArrayPrototype(TypedArray::Type t);
TypedArray::Type type;
};
}
struct Q_QML_PRIVATE_EXPORT TypedArray : Object
{
V4_OBJECT2(TypedArray, Object)
static Heap::TypedArray *create(QV4::ExecutionEngine *e, Heap::TypedArray::Type t);
uint byteLength() const {
return d()->byteLength;
}
uint length() const {
return d()->byteLength/d()->type->bytesPerElement;
}
QTypedArrayData<char> *arrayData() {
return d()->buffer->data;
}
Heap::TypedArray::Type arrayType() const {
return d()->arrayType;
}
static void markObjects(Heap::Base *that, ExecutionEngine *e);
static ReturnedValue getIndexed(const Managed *m, uint index, bool *hasProperty);
static void putIndexed(Managed *m, uint index, const Value &value);
};
struct TypedArrayCtor: FunctionObject
{
V4_OBJECT2(TypedArrayCtor, FunctionObject)
static ReturnedValue construct(const Managed *m, CallData *callData);
static ReturnedValue call(const Managed *that, CallData *callData);
};
struct TypedArrayPrototype : Object
{
V4_OBJECT2(TypedArrayPrototype, Object)
void init(ExecutionEngine *engine, TypedArrayCtor *ctor);
static ReturnedValue method_get_buffer(CallContext *ctx);
static ReturnedValue method_get_byteLength(CallContext *ctx);
static ReturnedValue method_get_byteOffset(CallContext *ctx);
static ReturnedValue method_get_length(CallContext *ctx);
static ReturnedValue method_set(CallContext *ctx);
static ReturnedValue method_subarray(CallContext *ctx);
};
inline
Heap::TypedArrayPrototype::TypedArrayPrototype(TypedArray::Type t)
: type(t)
{
}
} // namespace QV4
QT_END_NAMESPACE
#endif
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