| /**************************************************************************** |
| ** |
| ** 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 QtOpenGL 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 QGLFRAMEBUFFEROBJECT_P_H |
| #define QGLFRAMEBUFFEROBJECT_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists for the convenience |
| // of the QLibrary class. This header file may change from |
| // version to version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| QT_BEGIN_NAMESPACE |
| |
| QT_BEGIN_INCLUDE_NAMESPACE |
| |
| #include <qglframebufferobject.h> |
| #include <private/qglpaintdevice_p.h> |
| #include <private/qgl_p.h> |
| |
| QT_END_INCLUDE_NAMESPACE |
| |
| #ifndef QT_OPENGL_ES |
| #define DEFAULT_FORMAT GL_RGBA8 |
| #else |
| #define DEFAULT_FORMAT GL_RGBA |
| #endif |
| |
| class QGLFramebufferObjectFormatPrivate |
| { |
| public: |
| QGLFramebufferObjectFormatPrivate() |
| : ref(1), |
| samples(0), |
| attachment(QGLFramebufferObject::NoAttachment), |
| target(GL_TEXTURE_2D), |
| internal_format(DEFAULT_FORMAT) |
| { |
| } |
| QGLFramebufferObjectFormatPrivate |
| (const QGLFramebufferObjectFormatPrivate *other) |
| : ref(1), |
| samples(other->samples), |
| attachment(other->attachment), |
| target(other->target), |
| internal_format(other->internal_format) |
| { |
| } |
| bool equals(const QGLFramebufferObjectFormatPrivate *other) |
| { |
| return samples == other->samples && |
| attachment == other->attachment && |
| target == other->target && |
| internal_format == other->internal_format; |
| } |
| |
| QAtomicInt ref; |
| int samples; |
| QGLFramebufferObject::Attachment attachment; |
| GLenum target; |
| GLenum internal_format; |
| }; |
| |
| class QGLFBOGLPaintDevice : public QGLPaintDevice |
| { |
| public: |
| virtual QPaintEngine* paintEngine() const {return fbo->paintEngine();} |
| virtual QSize size() const {return fbo->size();} |
| virtual QGLContext* context() const; |
| virtual QGLFormat format() const {return fboFormat;} |
| virtual bool alphaRequested() const { return reqAlpha; } |
| |
| void setFBO(QGLFramebufferObject* f, |
| QGLFramebufferObject::Attachment attachment); |
| |
| private: |
| QGLFramebufferObject* fbo; |
| QGLFormat fboFormat; |
| bool wasBound; |
| bool reqAlpha; |
| }; |
| |
| class QGLFramebufferObjectPrivate |
| { |
| public: |
| QGLFramebufferObjectPrivate() : fbo_guard(0), texture(0), depth_buffer(0), stencil_buffer(0) |
| , color_buffer(0), valid(false), engine(0) {} |
| ~QGLFramebufferObjectPrivate() {} |
| |
| void init(QGLFramebufferObject *q, const QSize& sz, |
| QGLFramebufferObject::Attachment attachment, |
| GLenum internal_format, GLenum texture_target, GLint samples = 0); |
| bool checkFramebufferStatus() const; |
| QGLSharedResourceGuard fbo_guard; |
| GLuint texture; |
| GLuint depth_buffer; |
| GLuint stencil_buffer; |
| GLuint color_buffer; |
| GLenum target; |
| QSize size; |
| QGLFramebufferObjectFormat format; |
| uint valid : 1; |
| QGLFramebufferObject::Attachment fbo_attachment; |
| mutable QPaintEngine *engine; |
| QGLFBOGLPaintDevice glDevice; |
| |
| inline GLuint fbo() const { return fbo_guard.id(); } |
| }; |
| |
| |
| QT_END_NAMESPACE |
| |
| #endif // QGLFRAMEBUFFEROBJECT_P_H |