123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115 | // Copyright (C) 2016 The Qt Company Ltd.// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only#ifndef QOPENGLBUFFER_H#define QOPENGLBUFFER_H#include <QtOpenGL/qtopenglglobal.h>#ifndef QT_NO_OPENGL#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();explicitQOpenGLBuffer(QOpenGLBuffer::Type type);QOpenGLBuffer(const QOpenGLBuffer &other);QOpenGLBuffer(QOpenGLBuffer &&other) noexcept : d_ptr{std::exchange(other.d_ptr,nullptr)} {}~QOpenGLBuffer(); QOpenGLBuffer &operator=(const QOpenGLBuffer &other);QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_MOVE_AND_SWAP(QOpenGLBuffer)voidswap(QOpenGLBuffer &other) noexcept {returnqt_ptr_swap(d_ptr, other.d_ptr); }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;voidsetUsagePattern(QOpenGLBuffer::UsagePattern value);boolcreate();boolisCreated()const;voiddestroy();boolbind();voidrelease();static voidrelease(QOpenGLBuffer::Type type); GLuint bufferId()const;intsize()const;boolread(int offset,void*data,int count);voidwrite(int offset,const void*data,int count);voidallocate(const void*data,int count);inlinevoidallocate(int count) {allocate(nullptr, count); }void*map(QOpenGLBuffer::Access access);void*mapRange(int offset,int count,QOpenGLBuffer::RangeAccessFlags access);boolunmap();private: QOpenGLBufferPrivate *d_ptr;Q_DECLARE_PRIVATE(QOpenGLBuffer)};Q_DECLARE_SHARED(QOpenGLBuffer)Q_DECLARE_OPERATORS_FOR_FLAGS(QOpenGLBuffer::RangeAccessFlags) QT_END_NAMESPACE #endif// QT_NO_OPENGL#endif
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