116 lines
3.2 KiB
C++
116 lines
3.2 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
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#ifndef QOPENGLBUFFER_H
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#define QOPENGLBUFFER_H
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#include <QtOpenGL/qtopenglglobal.h>
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#ifndef QT_NO_OPENGL
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#include <QtGui/qopengl.h>
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QT_BEGIN_NAMESPACE
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class QOpenGLBufferPrivate;
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class Q_OPENGL_EXPORT QOpenGLBuffer
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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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QOpenGLBuffer();
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explicit QOpenGLBuffer(QOpenGLBuffer::Type type);
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QOpenGLBuffer(const QOpenGLBuffer &other);
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QOpenGLBuffer(QOpenGLBuffer &&other) noexcept
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: d_ptr{std::exchange(other.d_ptr, nullptr)} {}
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~QOpenGLBuffer();
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QOpenGLBuffer &operator=(const QOpenGLBuffer &other);
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QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_MOVE_AND_SWAP(QOpenGLBuffer)
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void swap(QOpenGLBuffer &other) noexcept
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{ return qt_ptr_swap(d_ptr, other.d_ptr); }
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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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enum RangeAccessFlag
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{
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RangeRead = 0x0001, // GL_MAP_READ_BIT
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RangeWrite = 0x0002, // GL_MAP_WRITE_BIT
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RangeInvalidate = 0x0004, // GL_MAP_INVALIDATE_RANGE_BIT
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RangeInvalidateBuffer = 0x0008, // GL_MAP_INVALIDATE_BUFFER_BIT
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RangeFlushExplicit = 0x0010, // GL_MAP_FLUSH_EXPLICIT_BIT
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RangeUnsynchronized = 0x0020 // GL_MAP_UNSYNCHRONIZED_BIT
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};
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Q_DECLARE_FLAGS(RangeAccessFlags, RangeAccessFlag)
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QOpenGLBuffer::Type type() const;
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QOpenGLBuffer::UsagePattern usagePattern() const;
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void setUsagePattern(QOpenGLBuffer::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(QOpenGLBuffer::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(QOpenGLBuffer::Access access);
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void *mapRange(int offset, int count, QOpenGLBuffer::RangeAccessFlags access);
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bool unmap();
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private:
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QOpenGLBufferPrivate *d_ptr;
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Q_DECLARE_PRIVATE(QOpenGLBuffer)
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};
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Q_DECLARE_SHARED(QOpenGLBuffer)
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Q_DECLARE_OPERATORS_FOR_FLAGS(QOpenGLBuffer::RangeAccessFlags)
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QT_END_NAMESPACE
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#endif // QT_NO_OPENGL
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#endif
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