160 lines
5.3 KiB
C++
160 lines
5.3 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 QOPENGLFRAMEBUFFEROBJECT_H
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#define QOPENGLFRAMEBUFFEROBJECT_H
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#include <QtOpenGL/qtopenglglobal.h>
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#include <QtGui/qopengl.h>
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#include <QtGui/qpaintdevice.h>
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#include <QtCore/qscopedpointer.h>
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#if defined(Q_QDOC)
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#undef GLuint
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typedef unsigned int GLuint;
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#undef GLenum
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typedef unsigned int GLenum;
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#undef GL_TEXTURE_2D
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#define GL_TEXTURE_2D 0x0DE1
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#undef GLbitfield
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typedef unsigned int GLbitfield;
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#endif
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QT_BEGIN_NAMESPACE
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class QOpenGLFramebufferObjectPrivate;
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class QOpenGLFramebufferObjectFormat;
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class Q_OPENGL_EXPORT QOpenGLFramebufferObject
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{
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Q_DECLARE_PRIVATE(QOpenGLFramebufferObject)
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public:
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enum Attachment {
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NoAttachment,
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CombinedDepthStencil,
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Depth
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};
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explicit QOpenGLFramebufferObject(const QSize &size, GLenum target = GL_TEXTURE_2D);
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QOpenGLFramebufferObject(int width, int height, GLenum target = GL_TEXTURE_2D);
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QOpenGLFramebufferObject(const QSize &size, Attachment attachment,
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GLenum target = GL_TEXTURE_2D, GLenum internalFormat = 0);
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QOpenGLFramebufferObject(int width, int height, Attachment attachment,
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GLenum target = GL_TEXTURE_2D, GLenum internalFormat = 0);
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QOpenGLFramebufferObject(const QSize &size, const QOpenGLFramebufferObjectFormat &format);
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QOpenGLFramebufferObject(int width, int height, const QOpenGLFramebufferObjectFormat &format);
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virtual ~QOpenGLFramebufferObject();
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void addColorAttachment(const QSize &size, GLenum internalFormat = 0);
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void addColorAttachment(int width, int height, GLenum internalFormat = 0);
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QOpenGLFramebufferObjectFormat format() const;
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bool isValid() const;
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bool isBound() const;
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bool bind();
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bool release();
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int width() const { return size().width(); }
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int height() const { return size().height(); }
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GLuint texture() const;
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QList<GLuint> textures() const;
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GLuint takeTexture();
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GLuint takeTexture(int colorAttachmentIndex);
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QSize size() const;
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QList<QSize> sizes() const;
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QImage toImage(bool flipped = true) const;
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QImage toImage(bool flipped, int colorAttachmentIndex) const;
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Attachment attachment() const;
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void setAttachment(Attachment attachment);
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GLuint handle() const;
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static bool bindDefault();
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static bool hasOpenGLFramebufferObjects();
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static bool hasOpenGLFramebufferBlit();
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enum FramebufferRestorePolicy {
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DontRestoreFramebufferBinding,
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RestoreFramebufferBindingToDefault,
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RestoreFrameBufferBinding
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};
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static void blitFramebuffer(QOpenGLFramebufferObject *target, const QRect &targetRect,
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QOpenGLFramebufferObject *source, const QRect &sourceRect,
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GLbitfield buffers,
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GLenum filter,
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int readColorAttachmentIndex,
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int drawColorAttachmentIndex,
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FramebufferRestorePolicy restorePolicy);
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static void blitFramebuffer(QOpenGLFramebufferObject *target, const QRect &targetRect,
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QOpenGLFramebufferObject *source, const QRect &sourceRect,
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GLbitfield buffers,
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GLenum filter,
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int readColorAttachmentIndex,
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int drawColorAttachmentIndex);
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static void blitFramebuffer(QOpenGLFramebufferObject *target, const QRect &targetRect,
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QOpenGLFramebufferObject *source, const QRect &sourceRect,
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GLbitfield buffers = GL_COLOR_BUFFER_BIT,
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GLenum filter = GL_NEAREST);
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static void blitFramebuffer(QOpenGLFramebufferObject *target,
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QOpenGLFramebufferObject *source,
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GLbitfield buffers = GL_COLOR_BUFFER_BIT,
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GLenum filter = GL_NEAREST);
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private:
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Q_DISABLE_COPY(QOpenGLFramebufferObject)
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QScopedPointer<QOpenGLFramebufferObjectPrivate> d_ptr;
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friend class QOpenGLPaintDevice;
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friend class QOpenGLFBOGLPaintDevice;
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};
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class QOpenGLFramebufferObjectFormatPrivate;
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class Q_OPENGL_EXPORT QOpenGLFramebufferObjectFormat
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{
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public:
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QOpenGLFramebufferObjectFormat();
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QOpenGLFramebufferObjectFormat(const QOpenGLFramebufferObjectFormat &other);
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QOpenGLFramebufferObjectFormat &operator=(const QOpenGLFramebufferObjectFormat &other);
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~QOpenGLFramebufferObjectFormat();
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void setSamples(int samples);
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int samples() const;
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void setMipmap(bool enabled);
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bool mipmap() const;
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void setAttachment(QOpenGLFramebufferObject::Attachment attachment);
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QOpenGLFramebufferObject::Attachment attachment() const;
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void setTextureTarget(GLenum target);
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GLenum textureTarget() const;
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void setInternalTextureFormat(GLenum internalTextureFormat);
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GLenum internalTextureFormat() const;
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bool operator==(const QOpenGLFramebufferObjectFormat& other) const;
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bool operator!=(const QOpenGLFramebufferObjectFormat& other) const;
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private:
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QOpenGLFramebufferObjectFormatPrivate *d;
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void detach();
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};
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QT_END_NAMESPACE
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#endif // QOPENGLFRAMEBUFFEROBJECT_H
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