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126 lines
3.9 KiB
C++
126 lines
3.9 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the QtOpenGL module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QGLBUFFER_H
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#define QGLBUFFER_H
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#include <QtCore/qscopedpointer.h>
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#include <QtOpenGL/qgl.h>
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QT_BEGIN_NAMESPACE
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class QGLBufferPrivate;
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class Q_OPENGL_EXPORT QGLBuffer
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{
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public:
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enum Type
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{
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VertexBuffer = 0x8892, // GL_ARRAY_BUFFER
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IndexBuffer = 0x8893, // GL_ELEMENT_ARRAY_BUFFER
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PixelPackBuffer = 0x88EB, // GL_PIXEL_PACK_BUFFER
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PixelUnpackBuffer = 0x88EC // GL_PIXEL_UNPACK_BUFFER
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};
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QGLBuffer();
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explicit QGLBuffer(QGLBuffer::Type type);
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QGLBuffer(const QGLBuffer &other);
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~QGLBuffer();
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QGLBuffer &operator=(const QGLBuffer &other);
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enum UsagePattern
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{
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StreamDraw = 0x88E0, // GL_STREAM_DRAW
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StreamRead = 0x88E1, // GL_STREAM_READ
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StreamCopy = 0x88E2, // GL_STREAM_COPY
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StaticDraw = 0x88E4, // GL_STATIC_DRAW
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StaticRead = 0x88E5, // GL_STATIC_READ
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StaticCopy = 0x88E6, // GL_STATIC_COPY
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DynamicDraw = 0x88E8, // GL_DYNAMIC_DRAW
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DynamicRead = 0x88E9, // GL_DYNAMIC_READ
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DynamicCopy = 0x88EA // GL_DYNAMIC_COPY
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};
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enum Access
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{
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ReadOnly = 0x88B8, // GL_READ_ONLY
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WriteOnly = 0x88B9, // GL_WRITE_ONLY
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ReadWrite = 0x88BA // GL_READ_WRITE
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};
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QGLBuffer::Type type() const;
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QGLBuffer::UsagePattern usagePattern() const;
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void setUsagePattern(QGLBuffer::UsagePattern value);
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bool create();
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bool isCreated() const;
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void destroy();
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bool bind();
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void release();
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static void release(QGLBuffer::Type type);
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GLuint bufferId() const;
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int size() const;
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bool read(int offset, void *data, int count);
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void write(int offset, const void *data, int count);
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void allocate(const void *data, int count);
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inline void allocate(int count) { allocate(nullptr, count); }
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void *map(QGLBuffer::Access access);
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bool unmap();
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private:
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QGLBufferPrivate *d_ptr;
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Q_DECLARE_PRIVATE(QGLBuffer)
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};
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QT_END_NAMESPACE
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#endif
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