53599592e0
Comes with backends for Vulkan, Metal, Direct3D 11.1, and OpenGL (ES). All APIs are private for now. Shader conditioning (i.e. generating a QRhiShader in memory or on disk from some shader source code) is done via the tools and APIs provided by qt-labs/qtshadertools. The OpenGL support follows the cross-platform tradition of requiring ES 2.0 only, while optionally using some (ES) 3.x features. It can operate in core profile contexts as well. Task-number: QTBUG-70287 Change-Id: I246f2e36d562e404012c05db2aa72487108aa7cc Reviewed-by: Lars Knoll <lars.knoll@qt.io>
143 lines
4.7 KiB
C++
143 lines
4.7 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2018 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** BSD License Usage
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** Alternatively, you may use this file under the terms of the BSD license
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** as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "window.h"
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#include <QPlatformSurfaceEvent>
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#ifndef QT_NO_OPENGL
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#include <QtGui/private/qrhigles2_p.h>
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#endif
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#if QT_CONFIG(vulkan)
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extern QVulkanInstance *instance;
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#endif
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Window::Window(const QString &title, GraphicsApi api)
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{
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switch (api) {
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case OpenGL:
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#if QT_CONFIG(opengl)
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setSurfaceType(OpenGLSurface);
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setFormat(QRhiGles2InitParams::adjustedFormat());
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#endif
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break;
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case Vulkan:
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#if QT_CONFIG(vulkan)
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setSurfaceType(VulkanSurface);
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setVulkanInstance(instance);
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#endif
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break;
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case D3D11:
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setSurfaceType(OpenGLSurface); // not a typo
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break;
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case Metal:
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#if (QT_VERSION >= QT_VERSION_CHECK(5, 12, 0))
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setSurfaceType(MetalSurface);
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#endif
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break;
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default:
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break;
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}
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resize(800, 600);
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setTitle(title);
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}
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Window::~Window()
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{
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}
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void Window::exposeEvent(QExposeEvent *)
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{
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if (isExposed()) {
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if (!m_running) {
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// initialize and start rendering when the window becomes usable for graphics purposes
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m_running = true;
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m_notExposed = false;
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emit initRequested();
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emit renderRequested(true);
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} else {
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// continue when exposed again
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if (m_notExposed) {
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m_notExposed = false;
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emit renderRequested(true);
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} else {
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// resize generates exposes - this is very important here (unlike in a single-threaded renderer)
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emit syncSurfaceSizeRequested();
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}
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}
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} else {
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// stop pushing frames when not exposed (on some platforms this is essential, optional on others)
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if (m_running)
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m_notExposed = true;
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}
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}
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bool Window::event(QEvent *e)
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{
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switch (e->type()) {
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case QEvent::UpdateRequest:
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if (!m_notExposed)
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emit renderRequested(false);
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break;
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case QEvent::PlatformSurface:
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// this is the proper time to tear down the swapchain (while the native window and surface are still around)
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if (static_cast<QPlatformSurfaceEvent *>(e)->surfaceEventType() == QPlatformSurfaceEvent::SurfaceAboutToBeDestroyed)
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emit surfaceGoingAway();
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break;
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default:
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break;
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}
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return QWindow::event(e);
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}
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