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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtOpenCL module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QCLCONTEXT_H
#define QCLCONTEXT_H
#include "qcldevice.h"
#include "qclcommandqueue.h"
#include "qclbuffer.h"
#include "qclvector.h"
#include "qclimage.h"
#include "qclsampler.h"
#include "qclprogram.h"
#include <QtCore/qscopedpointer.h>
#include <QtCore/qsize.h>
#include <QtCore/qbytearray.h>
#include <QtCore/qstring.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(CL)
class QCLContextPrivate;
class QCLKernel;
class QCLVectorBase;
class Q_CL_EXPORT QCLContext
{
public:
QCLContext();
virtual ~QCLContext();
bool isCreated() const;
bool create(QCLDevice::DeviceTypes type = QCLDevice::Default);
bool create(const QList<QCLDevice> &devices);
virtual void release();
cl_context contextId() const;
void setContextId(cl_context id);
QList<QCLDevice> devices() const;
QCLDevice defaultDevice() const;
cl_int lastError() const;
void setLastError(cl_int error);
static QString errorName(cl_int code);
QCLCommandQueue commandQueue();
void setCommandQueue(const QCLCommandQueue &queue);
QCLCommandQueue defaultCommandQueue();
QCLCommandQueue createCommandQueue
(cl_command_queue_properties properties,
const QCLDevice &device = QCLDevice());
QCLBuffer createBufferDevice
(size_t size, QCLMemoryObject::Access access);
QCLBuffer createBufferHost
(void *data, size_t size, QCLMemoryObject::Access access);
QCLBuffer createBufferCopy
(const void *data, size_t size, QCLMemoryObject::Access access);
template <typename T>
QCLVector<T> createVector(int size, QCLMemoryObject::Access access = QCLMemoryObject::ReadWrite);
QCLImage2D createImage2DDevice
(const QCLImageFormat &format, const QSize &size, QCLMemoryObject::Access access);
QCLImage2D createImage2DHost
(const QCLImageFormat &format, void *data, const QSize &size,
QCLMemoryObject::Access access, int bytesPerLine = 0);
QCLImage2D createImage2DHost(QImage *image, QCLMemoryObject::Access access);
QCLImage2D createImage2DCopy
(const QCLImageFormat &format, const void *data, const QSize &size,
QCLMemoryObject::Access access, int bytesPerLine = 0);
QCLImage2D createImage2DCopy
(const QImage &image, QCLMemoryObject::Access access);
QCLImage3D createImage3DDevice
(const QCLImageFormat &format, int width, int height, int depth,
QCLMemoryObject::Access access);
QCLImage3D createImage3DHost
(const QCLImageFormat &format, void *data,
int width, int height, int depth, QCLMemoryObject::Access access,
int bytesPerLine = 0, int bytesPerSlice = 0);
QCLImage3D createImage3DCopy
(const QCLImageFormat &format, const void *data,
int width, int height, int depth, QCLMemoryObject::Access access,
int bytesPerLine = 0, int bytesPerSlice = 0);
QCLProgram createProgramFromSourceCode(const QByteArray &sourceCode);
QCLProgram createProgramFromSourceFile(const QString &fileName);
QCLProgram createProgramFromBinaryCode(const QByteArray &binary);
QCLProgram createProgramFromBinaryFile(const QString &fileName);
QCLProgram createProgramFromBinaries
(const QList<QCLDevice> &devices, const QList<QByteArray> &binaries);
QCLProgram buildProgramFromSourceCode(const QByteArray &sourceCode);
QCLProgram buildProgramFromSourceFile(const QString &fileName);
QCLProgram buildProgramFromBinaryCode(const QByteArray &binary);
QCLProgram buildProgramFromBinaryFile(const QString &fileName);
QCLProgram buildProgramFromBinaries
(const QList<QCLDevice> &devices, const QList<QByteArray> &binaries);
QList<QCLImageFormat> supportedImage2DFormats(cl_mem_flags flags) const;
QList<QCLImageFormat> supportedImage3DFormats(cl_mem_flags flags) const;
void flush();
void finish();
QCLEvent marker();
void sync();
void barrier();
void barrier(const QCLEventList &events);
protected:
void setDefaultDevice(const QCLDevice &device);
private:
QScopedPointer<QCLContextPrivate> d_ptr;
Q_DISABLE_COPY(QCLContext)
Q_DECLARE_PRIVATE(QCLContext)
cl_command_queue activeQueue(); // For quicker access from friends.
friend class QCLMemoryObject;
friend class QCLBuffer;
friend class QCLImage2D;
friend class QCLImage3D;
friend class QCLKernel;
friend class QCLCommandQueue;
friend class QCLProgram;
friend class QCLVectorBase;
friend class QCLSampler;
void reportError(const char *name, cl_int error);
};
template <typename T>
Q_INLINE_TEMPLATE QCLVector<T> QCLContext::createVector
(int size, QCLMemoryObject::Access access)
{
Q_ASSERT(size >= 1);
return QCLVector<T>(this, size, access);
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
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