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Diffstat (limited to 'src/opengl/qopenglbuffer.h')
| -rw-r--r-- | src/opengl/qopenglbuffer.h | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/src/opengl/qopenglbuffer.h b/src/opengl/qopenglbuffer.h new file mode 100644 index 0000000000..8a099a0320 --- /dev/null +++ b/src/opengl/qopenglbuffer.h @@ -0,0 +1,145 @@ +/**************************************************************************** +** +** 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 +** 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 QOPENGLBUFFER_H +#define QOPENGLBUFFER_H + +#include <QtOpenGL/qtopenglglobal.h> + +#ifndef QT_NO_OPENGL + +#include <QtCore/qscopedpointer.h> +#include <QtGui/qopengl.h> + +QT_BEGIN_NAMESPACE + + +class QOpenGLBufferPrivate; + +class Q_OPENGL_EXPORT QOpenGLBuffer +{ +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 + }; + + QOpenGLBuffer(); + explicit QOpenGLBuffer(QOpenGLBuffer::Type type); + QOpenGLBuffer(const QOpenGLBuffer &other); + ~QOpenGLBuffer(); + + QOpenGLBuffer &operator=(const QOpenGLBuffer &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 + }; + + enum RangeAccessFlag + { + RangeRead = 0x0001, // GL_MAP_READ_BIT + RangeWrite = 0x0002, // GL_MAP_WRITE_BIT + RangeInvalidate = 0x0004, // GL_MAP_INVALIDATE_RANGE_BIT + RangeInvalidateBuffer = 0x0008, // GL_MAP_INVALIDATE_BUFFER_BIT + RangeFlushExplicit = 0x0010, // GL_MAP_FLUSH_EXPLICIT_BIT + RangeUnsynchronized = 0x0020 // GL_MAP_UNSYNCHRONIZED_BIT + }; + Q_DECLARE_FLAGS(RangeAccessFlags, RangeAccessFlag) + + QOpenGLBuffer::Type type() const; + + QOpenGLBuffer::UsagePattern usagePattern() const; + void setUsagePattern(QOpenGLBuffer::UsagePattern value); + + bool create(); + bool isCreated() const; + + void destroy(); + + bool bind(); + void release(); + + static void release(QOpenGLBuffer::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(QOpenGLBuffer::Access access); + void *mapRange(int offset, int count, QOpenGLBuffer::RangeAccessFlags access); + bool unmap(); + +private: + QOpenGLBufferPrivate *d_ptr; + + Q_DECLARE_PRIVATE(QOpenGLBuffer) +}; + +Q_DECLARE_OPERATORS_FOR_FLAGS(QOpenGLBuffer::RangeAccessFlags) + +QT_END_NAMESPACE + +#endif // QT_NO_OPENGL + +#endif |