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qt5base-lts/tests/manual/qopengltextureblitter/qopengltextureblitwindow.h

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QOpenGLTextureBlitter private api, but useful for 2d gui code that suddenly finds itself needing to get a set of textures onto some fbo I didn't want to include ARB_copy_image since it looks like its from texture/renderbuffer -> texture/renderbuffer while this class implies texture -> write fbo. We could wrap ARB_copy_image in QOpenGLTexture or some other class or we can add it later. I have not added any QOpenGLTexture functions since this class opperates on the GLuint identifier. We can add overloads later. Change-Id: I3e565b33466c1c183a249a33c3e82c6786debd55 Reviewed-by: Paul Olav Tvete <paul.tvete@digia.com>
2014-02-02 21:29:38 +00:00
/****************************************************************************
**
Updated license headers From Qt 5.7 -> tools & applications are lisenced under GPL v3 with some exceptions, see http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/ Updated license headers to use new GPL-EXCEPT header instead of LGPL21 one (in those files which will be under GPL 3 with exceptions) Change-Id: I42a473ddc97101492a60b9287d90979d9eb35ae1 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
2016-01-15 12:36:27 +00:00
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
QOpenGLTextureBlitter private api, but useful for 2d gui code that suddenly finds itself needing to get a set of textures onto some fbo I didn't want to include ARB_copy_image since it looks like its from texture/renderbuffer -> texture/renderbuffer while this class implies texture -> write fbo. We could wrap ARB_copy_image in QOpenGLTexture or some other class or we can add it later. I have not added any QOpenGLTexture functions since this class opperates on the GLuint identifier. We can add overloads later. Change-Id: I3e565b33466c1c183a249a33c3e82c6786debd55 Reviewed-by: Paul Olav Tvete <paul.tvete@digia.com>
2014-02-02 21:29:38 +00:00
**
** This file is part of the test suite of the Qt Toolkit.
**
Updated license headers From Qt 5.7 -> tools & applications are lisenced under GPL v3 with some exceptions, see http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/ Updated license headers to use new GPL-EXCEPT header instead of LGPL21 one (in those files which will be under GPL 3 with exceptions) Change-Id: I42a473ddc97101492a60b9287d90979d9eb35ae1 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
2016-01-15 12:36:27 +00:00
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
QOpenGLTextureBlitter private api, but useful for 2d gui code that suddenly finds itself needing to get a set of textures onto some fbo I didn't want to include ARB_copy_image since it looks like its from texture/renderbuffer -> texture/renderbuffer while this class implies texture -> write fbo. We could wrap ARB_copy_image in QOpenGLTexture or some other class or we can add it later. I have not added any QOpenGLTexture functions since this class opperates on the GLuint identifier. We can add overloads later. Change-Id: I3e565b33466c1c183a249a33c3e82c6786debd55 Reviewed-by: Paul Olav Tvete <paul.tvete@digia.com>
2014-02-02 21:29:38 +00:00
** 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
Update copyright headers Qt copyrights are now in The Qt Company, so we could update the source code headers accordingly. In the same go we should also fix the links to point to qt.io. Outdated header.LGPL removed (use header.LGPL21 instead) Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing combination. New header.LGPL-COMM taken in the use file which were using old header.LGPL3 (src/plugins/platforms/android/extract.cpp) Added new header.LGPL3 containing Commercial + LGPLv3 + GPLv2 license combination Change-Id: I6f49b819a8a20cc4f88b794a8f6726d975e8ffbe Reviewed-by: Matti Paaso <matti.paaso@theqtcompany.com>
2015-01-28 08:44:43 +00:00
** a written agreement between you and The Qt Company. For licensing terms
Updated license headers From Qt 5.7 -> tools & applications are lisenced under GPL v3 with some exceptions, see http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/ Updated license headers to use new GPL-EXCEPT header instead of LGPL21 one (in those files which will be under GPL 3 with exceptions) Change-Id: I42a473ddc97101492a60b9287d90979d9eb35ae1 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
2016-01-15 12:36:27 +00:00
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
QOpenGLTextureBlitter private api, but useful for 2d gui code that suddenly finds itself needing to get a set of textures onto some fbo I didn't want to include ARB_copy_image since it looks like its from texture/renderbuffer -> texture/renderbuffer while this class implies texture -> write fbo. We could wrap ARB_copy_image in QOpenGLTexture or some other class or we can add it later. I have not added any QOpenGLTexture functions since this class opperates on the GLuint identifier. We can add overloads later. Change-Id: I3e565b33466c1c183a249a33c3e82c6786debd55 Reviewed-by: Paul Olav Tvete <paul.tvete@digia.com>
2014-02-02 21:29:38 +00:00
**
Updated license headers From Qt 5.7 -> tools & applications are lisenced under GPL v3 with some exceptions, see http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/ Updated license headers to use new GPL-EXCEPT header instead of LGPL21 one (in those files which will be under GPL 3 with exceptions) Change-Id: I42a473ddc97101492a60b9287d90979d9eb35ae1 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
2016-01-15 12:36:27 +00:00
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** 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-3.0.html.
QOpenGLTextureBlitter private api, but useful for 2d gui code that suddenly finds itself needing to get a set of textures onto some fbo I didn't want to include ARB_copy_image since it looks like its from texture/renderbuffer -> texture/renderbuffer while this class implies texture -> write fbo. We could wrap ARB_copy_image in QOpenGLTexture or some other class or we can add it later. I have not added any QOpenGLTexture functions since this class opperates on the GLuint identifier. We can add overloads later. Change-Id: I3e565b33466c1c183a249a33c3e82c6786debd55 Reviewed-by: Paul Olav Tvete <paul.tvete@digia.com>
2014-02-02 21:29:38 +00:00
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QOPENGLTEXTUREBLITWINDOW_H
#define QOPENGLTEXTUREBLITWINDOW_H
#include <QtGui/QWindow>
#include <QtGui/QOpenGLContext>
Make QOpenGLTextureBlitter public Change QOpenGLTextureBlitter to be a public API, as it was originally intended. There are now significant external uses outside qtbase (C++ compositor examples in QtWayland), and the API is considered proven enough. [ChangeLog][QtGui] QOpenGLTextureBlitter, a utility class to draw textured quads, has been made public. Change-Id: If7a2c94e1494195e2aa375d214932fa7b4c78321 Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
2016-07-28 10:20:23 +00:00
#include <QtGui/QOpenGLTextureBlitter>
QOpenGLTextureBlitter private api, but useful for 2d gui code that suddenly finds itself needing to get a set of textures onto some fbo I didn't want to include ARB_copy_image since it looks like its from texture/renderbuffer -> texture/renderbuffer while this class implies texture -> write fbo. We could wrap ARB_copy_image in QOpenGLTexture or some other class or we can add it later. I have not added any QOpenGLTexture functions since this class opperates on the GLuint identifier. We can add overloads later. Change-Id: I3e565b33466c1c183a249a33c3e82c6786debd55 Reviewed-by: Paul Olav Tvete <paul.tvete@digia.com>
2014-02-02 21:29:38 +00:00
class QOpenGLTextureBlitWindow : public QWindow
{
Q_OBJECT
public:
QOpenGLTextureBlitWindow();
void render();
protected:
void exposeEvent(QExposeEvent *event);
void resizeEvent(QResizeEvent *event);
private:
qreal dWidth() const { return width() * devicePixelRatio(); }
qreal dHeight() const { return height() * devicePixelRatio(); }
QScopedPointer<QOpenGLContext> m_context;
QOpenGLTextureBlitter m_blitter;
QImage m_image;
QOpenGLTextureBlitter: Remove Origin location for the Target rect The Origin for Target rect was deemed a confusing concept. The current implementation would translate the target rect to the coordinate system specified. However, the order and "direction" of the vertices would always be the same. So drawing a texture in for one target rect defined in one coordinate system would paint the texture the same way as it would when a texture was drawn for a target rect drawn in the "opposite" coordinate system. The point with this was that if you wanted to "flip" the texture you would specify that with the source coordinate system. However, this approach breaks on different levels, such as QRect has functions which expects a top left coordinate system (ie. top() and bottom()). In the end Qt uses a top left coordinate system, hence QWindow specifies a top left coordinate system, and hence the api becomes easier if it is not possible to define the coordinate system of the target viewport. Change-Id: I7dd59b3718380876e87a4bff88381d7a1c7d58c1 Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
2014-02-13 21:03:52 +00:00
QImage m_image_mirrord;
QOpenGLTextureBlitter private api, but useful for 2d gui code that suddenly finds itself needing to get a set of textures onto some fbo I didn't want to include ARB_copy_image since it looks like its from texture/renderbuffer -> texture/renderbuffer while this class implies texture -> write fbo. We could wrap ARB_copy_image in QOpenGLTexture or some other class or we can add it later. I have not added any QOpenGLTexture functions since this class opperates on the GLuint identifier. We can add overloads later. Change-Id: I3e565b33466c1c183a249a33c3e82c6786debd55 Reviewed-by: Paul Olav Tvete <paul.tvete@digia.com>
2014-02-02 21:29:38 +00:00
};
#endif
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