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Diffstat (limited to 'src/opengl/qopenglcompositor_p.h')
-rw-r--r-- | src/opengl/qopenglcompositor_p.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/src/opengl/qopenglcompositor_p.h b/src/opengl/qopenglcompositor_p.h new file mode 100644 index 0000000000..d0d1c9303d --- /dev/null +++ b/src/opengl/qopenglcompositor_p.h @@ -0,0 +1,124 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QOPENGLCOMPOSITOR_H +#define QOPENGLCOMPOSITOR_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <QtOpenGL/qtopenglglobal.h> + +#include <QtCore/QTimer> +#include <QtOpenGL/QOpenGLTextureBlitter> +#include <QtGui/QMatrix4x4> + +QT_BEGIN_NAMESPACE + +class QOpenGLContext; +class QOpenGLFramebufferObject; +class QWindow; +class QPlatformTextureList; + +class QOpenGLCompositorWindow +{ +public: + virtual ~QOpenGLCompositorWindow() { } + virtual QWindow *sourceWindow() const = 0; + virtual const QPlatformTextureList *textures() const = 0; + virtual void beginCompositing() { } + virtual void endCompositing() { } +}; + +class Q_OPENGL_EXPORT QOpenGLCompositor : public QObject +{ + Q_OBJECT + +public: + static QOpenGLCompositor *instance(); + static void destroy(); + + void setTarget(QOpenGLContext *context, QWindow *window, const QRect &nativeTargetGeometry); + void setRotation(int degrees); + QOpenGLContext *context() const { return m_context; } + QWindow *targetWindow() const { return m_targetWindow; } + + void update(); + QImage grab(); + + QList<QOpenGLCompositorWindow *> windows() const { return m_windows; } + void addWindow(QOpenGLCompositorWindow *window); + void removeWindow(QOpenGLCompositorWindow *window); + void moveToTop(QOpenGLCompositorWindow *window); + void changeWindowIndex(QOpenGLCompositorWindow *window, int newIdx); + +signals: + void topWindowChanged(QOpenGLCompositorWindow *window); + +private slots: + void handleRenderAllRequest(); + +private: + QOpenGLCompositor(); + ~QOpenGLCompositor(); + + void renderAll(QOpenGLFramebufferObject *fbo); + void render(QOpenGLCompositorWindow *window); + + QOpenGLContext *m_context; + QWindow *m_targetWindow; + QRect m_nativeTargetGeometry; + int m_rotation; + QMatrix4x4 m_rotationMatrix; + QTimer m_updateTimer; + QOpenGLTextureBlitter m_blitter; + QList<QOpenGLCompositorWindow *> m_windows; +}; + +QT_END_NAMESPACE + +#endif // QOPENGLCOMPOSITOR_H |