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Diffstat (limited to 'examples/hellooffscreen_opengl/window.h')
-rw-r--r-- | examples/hellooffscreen_opengl/window.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/examples/hellooffscreen_opengl/window.h b/examples/hellooffscreen_opengl/window.h new file mode 100644 index 0000000..4d7538c --- /dev/null +++ b/examples/hellooffscreen_opengl/window.h @@ -0,0 +1,94 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the examples of the QtD3D12Window module +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QOpenGLWindow> +#include <QMatrix4x4> + +QT_BEGIN_NAMESPACE +class QOpenGLFramebufferObject; +class QOpenGLShaderProgram; +class QOpenGLBuffer; +class QOpenGLVertexArrayObject; +QT_END_NAMESPACE + +class Window : public QOpenGLWindow +{ +public: + Window(); + ~Window(); + + void initializeGL() Q_DECL_OVERRIDE; + void resizeGL(int w, int h) Q_DECL_OVERRIDE; + void paintGL() Q_DECL_OVERRIDE; + +public slots: + void readbackAndSave(); + +private: + void initializeOffscreen(); + void initializeOnscreen(); + void setupOffscreenVertexAttribs(); + void paintOffscreen(); + void setupOnscreenVertexAttribs(); + void paintOnscreen(); + + struct OffscreenData { + OffscreenData() : rotationAngle(0), fbo(Q_NULLPTR), prog(Q_NULLPTR), vbo(Q_NULLPTR), vao(Q_NULLPTR) { } + QMatrix4x4 projection; + float rotationAngle; + QOpenGLFramebufferObject *fbo; + QOpenGLShaderProgram *prog; + QOpenGLBuffer *vbo; + QOpenGLVertexArrayObject *vao; + int modelviewLoc; + int projectionLoc; + } offscreen; + + struct OnscreenData { + OnscreenData() : rotationAngle(0), prog(Q_NULLPTR), vbo(Q_NULLPTR), vao(Q_NULLPTR) { } + QMatrix4x4 projection; + float rotationAngle; + QOpenGLShaderProgram *prog; + QOpenGLBuffer *vbo; + QOpenGLVertexArrayObject *vao; + int modelviewLoc; + int projectionLoc; + } onscreen; +}; |