summaryrefslogtreecommitdiffstats
path: root/src/gui/opengl/qopenglframebufferobject_p.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/gui/opengl/qopenglframebufferobject_p.h')
-rw-r--r--src/gui/opengl/qopenglframebufferobject_p.h164
1 files changed, 164 insertions, 0 deletions
diff --git a/src/gui/opengl/qopenglframebufferobject_p.h b/src/gui/opengl/qopenglframebufferobject_p.h
new file mode 100644
index 0000000000..6ea6eb26ee
--- /dev/null
+++ b/src/gui/opengl/qopenglframebufferobject_p.h
@@ -0,0 +1,164 @@
+/****************************************************************************
+**
+** 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_P_H
+#define QOPENGLFRAMEBUFFEROBJECT_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 <qopenglframebufferobject.h>
+#include <private/qopenglpaintdevice_p.h>
+#include <private/qopenglcontext_p.h>
+#include <private/qopenglextensions_p.h>
+
+QT_END_INCLUDE_NAMESPACE
+
+#ifndef QT_OPENGL_ES
+#define DEFAULT_FORMAT GL_RGBA8
+#else
+#define DEFAULT_FORMAT GL_RGBA
+#endif
+
+class QOpenGLFramebufferObjectFormatPrivate
+{
+public:
+ QOpenGLFramebufferObjectFormatPrivate()
+ : ref(1),
+ samples(0),
+ attachment(QOpenGLFramebufferObject::NoAttachment),
+ target(GL_TEXTURE_2D),
+ internal_format(DEFAULT_FORMAT),
+ mipmap(false)
+ {
+ }
+ QOpenGLFramebufferObjectFormatPrivate
+ (const QOpenGLFramebufferObjectFormatPrivate *other)
+ : ref(1),
+ samples(other->samples),
+ attachment(other->attachment),
+ target(other->target),
+ internal_format(other->internal_format),
+ mipmap(other->mipmap)
+ {
+ }
+ bool equals(const QOpenGLFramebufferObjectFormatPrivate *other)
+ {
+ return samples == other->samples &&
+ attachment == other->attachment &&
+ target == other->target &&
+ internal_format == other->internal_format &&
+ mipmap == other->mipmap;
+ }
+
+ QAtomicInt ref;
+ int samples;
+ QOpenGLFramebufferObject::Attachment attachment;
+ GLenum target;
+ GLenum internal_format;
+ uint mipmap : 1;
+};
+
+class QOpenGLFBOGLPaintDevice : public QOpenGLPaintDevice
+{
+public:
+ virtual QPaintEngine* paintEngine() const {return fbo->paintEngine();}
+ virtual QSize size() const {return fbo->size();}
+ virtual QSurfaceFormat format() const {return fboFormat;}
+ virtual QOpenGLContextGroup *group() const;
+ virtual bool alphaRequested() const { return reqAlpha; }
+
+ void setFBO(QOpenGLFramebufferObject* f,
+ QOpenGLFramebufferObject::Attachment attachment);
+
+private:
+ QOpenGLFramebufferObject* fbo;
+ QSurfaceFormat fboFormat;
+ bool wasBound;
+ bool reqAlpha;
+};
+
+class QOpenGLFramebufferObjectPrivate
+{
+public:
+ QOpenGLFramebufferObjectPrivate() : fbo_guard(0), texture_guard(0), depth_buffer_guard(0)
+ , stencil_buffer_guard(0), color_buffer_guard(0)
+ , valid(false), engine(0) {}
+ ~QOpenGLFramebufferObjectPrivate() {}
+
+ void init(QOpenGLFramebufferObject *q, const QSize& sz,
+ QOpenGLFramebufferObject::Attachment attachment,
+ GLenum internal_format, GLenum texture_target,
+ GLint samples = 0, bool mipmap = false);
+ bool checkFramebufferStatus() const;
+ QOpenGLSharedResourceGuard *fbo_guard;
+ QOpenGLSharedResourceGuard *texture_guard;
+ QOpenGLSharedResourceGuard *depth_buffer_guard;
+ QOpenGLSharedResourceGuard *stencil_buffer_guard;
+ QOpenGLSharedResourceGuard *color_buffer_guard;
+ GLenum target;
+ QSize size;
+ QOpenGLFramebufferObjectFormat format;
+ uint valid : 1;
+ QOpenGLFramebufferObject::Attachment fbo_attachment;
+ mutable QPaintEngine *engine;
+ QOpenGLFBOGLPaintDevice glDevice;
+ QOpenGLExtensions funcs;
+
+ inline GLuint fbo() const { return fbo_guard ? fbo_guard->id() : 0; }
+};
+
+
+QT_END_NAMESPACE
+
+#endif // QOPENGLFRAMEBUFFEROBJECT_P_H