| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtOpenGL module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
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| ** GNU Lesser General Public License Usage |
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| ** General Public License version 3 as published by the Free Software |
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| ** packaging of this file. Please review the following information to |
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| ** |
| ** 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 |
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| ** $QT_END_LICENSE$ |
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| ****************************************************************************/ |
| |
| #ifndef QGLBUFFER_H |
| #define QGLBUFFER_H |
| |
| #include <QtCore/qscopedpointer.h> |
| #include <QtOpenGL/qgl.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| |
| class QGLBufferPrivate; |
| |
| class Q_OPENGL_EXPORT QGLBuffer |
| { |
| public: |
| enum Type |
| { |
| VertexBuffer = 0x8892, // GL_ARRAY_BUFFER |
| IndexBuffer = 0x8893, // GL_ELEMENT_ARRAY_BUFFER |
| PixelPackBuffer = 0x88EB, // GL_PIXEL_PACK_BUFFER |
| PixelUnpackBuffer = 0x88EC // GL_PIXEL_UNPACK_BUFFER |
| }; |
| |
| QGLBuffer(); |
| explicit QGLBuffer(QGLBuffer::Type type); |
| QGLBuffer(const QGLBuffer &other); |
| ~QGLBuffer(); |
| |
| QGLBuffer &operator=(const QGLBuffer &other); |
| |
| enum UsagePattern |
| { |
| StreamDraw = 0x88E0, // GL_STREAM_DRAW |
| StreamRead = 0x88E1, // GL_STREAM_READ |
| StreamCopy = 0x88E2, // GL_STREAM_COPY |
| StaticDraw = 0x88E4, // GL_STATIC_DRAW |
| StaticRead = 0x88E5, // GL_STATIC_READ |
| StaticCopy = 0x88E6, // GL_STATIC_COPY |
| DynamicDraw = 0x88E8, // GL_DYNAMIC_DRAW |
| DynamicRead = 0x88E9, // GL_DYNAMIC_READ |
| DynamicCopy = 0x88EA // GL_DYNAMIC_COPY |
| }; |
| |
| enum Access |
| { |
| ReadOnly = 0x88B8, // GL_READ_ONLY |
| WriteOnly = 0x88B9, // GL_WRITE_ONLY |
| ReadWrite = 0x88BA // GL_READ_WRITE |
| }; |
| |
| QGLBuffer::Type type() const; |
| |
| QGLBuffer::UsagePattern usagePattern() const; |
| void setUsagePattern(QGLBuffer::UsagePattern value); |
| |
| bool create(); |
| bool isCreated() const; |
| |
| void destroy(); |
| |
| bool bind(); |
| void release(); |
| |
| static void release(QGLBuffer::Type type); |
| |
| GLuint bufferId() const; |
| |
| int size() const; |
| |
| bool read(int offset, void *data, int count); |
| void write(int offset, const void *data, int count); |
| |
| void allocate(const void *data, int count); |
| inline void allocate(int count) { allocate(nullptr, count); } |
| |
| void *map(QGLBuffer::Access access); |
| bool unmap(); |
| |
| private: |
| QGLBufferPrivate *d_ptr; |
| |
| Q_DECLARE_PRIVATE(QGLBuffer) |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif |