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Diffstat (limited to 'src/gui/opengl/qopenglframebufferobject.h')
| -rw-r--r-- | src/gui/opengl/qopenglframebufferobject.h | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/src/gui/opengl/qopenglframebufferobject.h b/src/gui/opengl/qopenglframebufferobject.h new file mode 100644 index 0000000000..17ee74aa94 --- /dev/null +++ b/src/gui/opengl/qopenglframebufferobject.h @@ -0,0 +1,163 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QOPENGLFRAMEBUFFEROBJECT_H +#define QOPENGLFRAMEBUFFEROBJECT_H + +#include <QtGui/qopengl.h> +#include <QtGui/qpaintdevice.h> + +#include <QtCore/qscopedpointer.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Gui) + +class QOpenGLFramebufferObjectPrivate; +class QOpenGLFramebufferObjectFormat; + +class Q_GUI_EXPORT QOpenGLFramebufferObject +{ + Q_DECLARE_PRIVATE(QOpenGLFramebufferObject) +public: + enum Attachment { + NoAttachment, + CombinedDepthStencil, + Depth + }; + + QOpenGLFramebufferObject(const QSize &size, GLenum target = GL_TEXTURE_2D); + QOpenGLFramebufferObject(int width, int height, GLenum target = GL_TEXTURE_2D); +#if !defined(QT_OPENGL_ES) || defined(Q_QDOC) + QOpenGLFramebufferObject(const QSize &size, Attachment attachment, + GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA8); + QOpenGLFramebufferObject(int width, int height, Attachment attachment, + GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA8); +#else + QOpenGLFramebufferObject(const QSize &size, Attachment attachment, + GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA); + QOpenGLFramebufferObject(int width, int height, Attachment attachment, + GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA); +#endif + + QOpenGLFramebufferObject(const QSize &size, const QOpenGLFramebufferObjectFormat &format); + QOpenGLFramebufferObject(int width, int height, const QOpenGLFramebufferObjectFormat &format); + + virtual ~QOpenGLFramebufferObject(); + + QOpenGLFramebufferObjectFormat format() const; + + bool isValid() const; + bool isBound() const; + bool bind(); + bool release(); + + int width() const { return size().width(); } + int height() const { return size().height(); } + + GLuint texture() const; + QSize size() const; + QImage toImage() const; + Attachment attachment() const; + + QPaintEngine *paintEngine() const; + GLuint handle() const; + + static bool bindDefault(); + + static bool hasOpenGLFramebufferObjects(); + + static bool hasOpenGLFramebufferBlit(); + static void blitFramebuffer(QOpenGLFramebufferObject *target, const QRect &targetRect, + QOpenGLFramebufferObject *source, const QRect &sourceRect, + GLbitfield buffers = GL_COLOR_BUFFER_BIT, + GLenum filter = GL_NEAREST); + static void blitFramebuffer(QOpenGLFramebufferObject *target, + QOpenGLFramebufferObject *source, + GLbitfield buffers = GL_COLOR_BUFFER_BIT, + GLenum filter = GL_NEAREST); + +private: + Q_DISABLE_COPY(QOpenGLFramebufferObject) + QScopedPointer<QOpenGLFramebufferObjectPrivate> d_ptr; + friend class QOpenGLPaintDevice; + friend class QOpenGLFBOGLPaintDevice; +}; + +class QOpenGLFramebufferObjectFormatPrivate; +class Q_GUI_EXPORT QOpenGLFramebufferObjectFormat +{ +public: + QOpenGLFramebufferObjectFormat(); + QOpenGLFramebufferObjectFormat(const QOpenGLFramebufferObjectFormat &other); + QOpenGLFramebufferObjectFormat &operator=(const QOpenGLFramebufferObjectFormat &other); + ~QOpenGLFramebufferObjectFormat(); + + void setSamples(int samples); + int samples() const; + + void setMipmap(bool enabled); + bool mipmap() const; + + void setAttachment(QOpenGLFramebufferObject::Attachment attachment); + QOpenGLFramebufferObject::Attachment attachment() const; + + void setTextureTarget(GLenum target); + GLenum textureTarget() const; + + void setInternalTextureFormat(GLenum internalTextureFormat); + GLenum internalTextureFormat() const; + + bool operator==(const QOpenGLFramebufferObjectFormat& other) const; + bool operator!=(const QOpenGLFramebufferObjectFormat& other) const; + +private: + QOpenGLFramebufferObjectFormatPrivate *d; + + void detach(); +}; + +QT_END_NAMESPACE + +QT_END_HEADER +#endif // QOPENGLFRAMEBUFFEROBJECT_H |