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Diffstat (limited to 'src/opengl/qglbuffer.h')
-rw-r--r-- | src/opengl/qglbuffer.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/src/opengl/qglbuffer.h b/src/opengl/qglbuffer.h new file mode 100644 index 0000000..2fe1f1f --- /dev/null +++ b/src/opengl/qglbuffer.h @@ -0,0 +1,127 @@ +/**************************************************************************** +** +** 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 QtOpenGL 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 QGLBUFFER_H +#define QGLBUFFER_H + +#include <QtCore/qscopedpointer.h> +#include <QtOpenGL/qgl.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(OpenGL) + +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 + }; + + explicit QGLBuffer(QGLBuffer::Type type); + ~QGLBuffer(); + + 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; + + bool bind() const; + void release() const; + + 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(0, count); } + + void *map(QGLBuffer::Access access); + bool unmap(); + +private: + QScopedPointer<QGLBufferPrivate> d_ptr; + + Q_DISABLE_COPY(QGLBuffer) + Q_DECLARE_PRIVATE(QGLBuffer) +}; + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif |