| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtGui module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** 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 https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://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 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
| ** https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #ifndef QPLATFORMGRAPHICSBUFFER_H |
| #define QPLATFORMGRAPHICSBUFFER_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is part of the QPA API and is not meant to be used |
| // in applications. Usage of this API may make your code |
| // source and binary incompatible with future versions of Qt. |
| // |
| |
| |
| #include <QtGui/qtguiglobal.h> |
| #include <QtCore/QSize> |
| #include <QtCore/QRect> |
| #include <QtGui/QPixelFormat> |
| #include <QtCore/qflags.h> |
| #include <QtCore/QObject> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class Q_GUI_EXPORT QPlatformGraphicsBuffer : public QObject |
| { |
| Q_OBJECT |
| public: |
| enum AccessType |
| { |
| None = 0x00, |
| SWReadAccess = 0x01, |
| SWWriteAccess = 0x02, |
| TextureAccess = 0x04, |
| HWCompositor = 0x08 |
| }; |
| Q_ENUM(AccessType); |
| Q_DECLARE_FLAGS(AccessTypes, AccessType); |
| |
| enum Origin { |
| OriginBottomLeft, |
| OriginTopLeft |
| }; |
| Q_ENUM(Origin); |
| |
| ~QPlatformGraphicsBuffer(); |
| |
| AccessTypes isLocked() const { return m_lock_access; } |
| bool lock(AccessTypes access, const QRect &rect = QRect()); |
| void unlock(); |
| |
| virtual bool bindToTexture(const QRect &rect = QRect()) const; |
| |
| virtual const uchar *data() const; |
| virtual uchar *data(); |
| virtual int bytesPerLine() const; |
| int byteCount() const; |
| |
| virtual Origin origin() const; |
| |
| QSize size() const { return m_size; } |
| QPixelFormat format() const { return m_format; } |
| |
| Q_SIGNALS: |
| void unlocked(AccessTypes previousAccessTypes); |
| |
| protected: |
| QPlatformGraphicsBuffer(const QSize &size, const QPixelFormat &format); |
| |
| virtual bool doLock(AccessTypes access, const QRect &rect = QRect()) = 0; |
| virtual void doUnlock() = 0; |
| |
| private: |
| QSize m_size; |
| QPixelFormat m_format; |
| AccessTypes m_lock_access; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif //QPLATFORMGRAPHICSBUFFER_H |