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176 lines
6.6 KiB
176 lines
6.6 KiB
15 years ago
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtOpenGL module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial Usage
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QGLFRAMEBUFFEROBJECT_H
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#define QGLFRAMEBUFFEROBJECT_H
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#include <QtOpenGL/qgl.h>
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#include <QtGui/qpaintdevice.h>
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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QT_MODULE(OpenGL)
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class QGLFramebufferObjectPrivate;
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class QGLFramebufferObjectFormat;
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class Q_OPENGL_EXPORT QGLFramebufferObject : public QPaintDevice
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{
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Q_DECLARE_PRIVATE(QGLFramebufferObject)
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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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QGLFramebufferObject(const QSize &size, GLenum target = GL_TEXTURE_2D);
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QGLFramebufferObject(int width, int height, GLenum target = GL_TEXTURE_2D);
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#if !defined(QT_OPENGL_ES) || defined(Q_QDOC)
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QGLFramebufferObject(const QSize &size, Attachment attachment,
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GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA8);
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QGLFramebufferObject(int width, int height, Attachment attachment,
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GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA8);
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#else
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QGLFramebufferObject(const QSize &size, Attachment attachment,
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GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA);
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QGLFramebufferObject(int width, int height, Attachment attachment,
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GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA);
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#endif
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QGLFramebufferObject(const QSize &size, const QGLFramebufferObjectFormat &format);
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QGLFramebufferObject(int width, int height, const QGLFramebufferObjectFormat &format);
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#ifdef Q_MAC_COMPAT_GL_FUNCTIONS
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QGLFramebufferObject(const QSize &size, QMacCompatGLenum target = GL_TEXTURE_2D);
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QGLFramebufferObject(int width, int height, QMacCompatGLenum target = GL_TEXTURE_2D);
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QGLFramebufferObject(const QSize &size, Attachment attachment,
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QMacCompatGLenum target = GL_TEXTURE_2D, QMacCompatGLenum internal_format = GL_RGBA8);
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QGLFramebufferObject(int width, int height, Attachment attachment,
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QMacCompatGLenum target = GL_TEXTURE_2D, QMacCompatGLenum internal_format = GL_RGBA8);
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#endif
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virtual ~QGLFramebufferObject();
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QGLFramebufferObjectFormat 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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GLuint texture() const;
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QSize size() const;
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QImage toImage() const;
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Attachment attachment() const;
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QPaintEngine *paintEngine() const;
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GLuint handle() const;
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static bool hasOpenGLFramebufferObjects();
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void drawTexture(const QRectF &target, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D);
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void drawTexture(const QPointF &point, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D);
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#ifdef Q_MAC_COMPAT_GL_FUNCTIONS
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void drawTexture(const QRectF &target, QMacCompatGLuint textureId, QMacCompatGLenum textureTarget = GL_TEXTURE_2D);
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void drawTexture(const QPointF &point, QMacCompatGLuint textureId, QMacCompatGLenum textureTarget = GL_TEXTURE_2D);
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#endif
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static bool hasOpenGLFramebufferBlit();
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static void blitFramebuffer(QGLFramebufferObject *target, const QRect &targetRect,
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QGLFramebufferObject *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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protected:
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int metric(PaintDeviceMetric metric) const;
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int devType() const { return QInternal::FramebufferObject; }
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private:
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Q_DISABLE_COPY(QGLFramebufferObject)
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QScopedPointer<QGLFramebufferObjectPrivate> d_ptr;
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friend class QGLPaintDevice;
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friend class QGLFBOGLPaintDevice;
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};
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class QGLFramebufferObjectFormatPrivate;
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class Q_OPENGL_EXPORT QGLFramebufferObjectFormat
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{
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public:
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QGLFramebufferObjectFormat();
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QGLFramebufferObjectFormat(const QGLFramebufferObjectFormat &other);
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QGLFramebufferObjectFormat &operator=(const QGLFramebufferObjectFormat &other);
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~QGLFramebufferObjectFormat();
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void setSamples(int samples);
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int samples() const;
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void setAttachment(QGLFramebufferObject::Attachment attachment);
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QGLFramebufferObject::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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#ifdef Q_MAC_COMPAT_GL_FUNCTIONS
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void setTextureTarget(QMacCompatGLenum target);
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void setInternalTextureFormat(QMacCompatGLenum internalTextureFormat);
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#endif
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bool operator==(const QGLFramebufferObjectFormat& other) const;
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bool operator!=(const QGLFramebufferObjectFormat& other) const;
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private:
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QGLFramebufferObjectFormatPrivate *d;
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void detach();
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};
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif // QGLFRAMEBUFFEROBJECT_H
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