| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #include "qeglfsoffscreenwindow_p.h" |
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| 5 | #include "qeglfshooks_p.h" |
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| 6 | #include <QtGui/QOffscreenSurface> |
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| 7 | #include <QtGui/private/qeglconvenience_p.h> |
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| 8 | |
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| 9 | QT_BEGIN_NAMESPACE |
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| 10 | |
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| 11 | /* |
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| 12 | In some cases pbuffers are not available. Triggering QtGui's built-in |
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| 13 | fallback for a hidden QWindow is not suitable for eglfs since this would be |
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| 14 | treated as an attempt to create multiple top-level, native windows. |
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| 15 | |
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| 16 | Therefore this class is provided as an alternative to QEGLPbuffer. |
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| 17 | |
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| 18 | This class requires the hooks to implement createNativeOffscreenWindow(). |
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| 19 | */ |
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| 20 | |
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| 21 | QEglFSOffscreenWindow::QEglFSOffscreenWindow(EGLDisplay display, const QSurfaceFormat &format, QOffscreenSurface *offscreenSurface) |
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| 22 | : QPlatformOffscreenSurface(offscreenSurface) |
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| 23 | , m_format(format) |
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| 24 | , m_display(display) |
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| 25 | , m_surface(EGL_NO_SURFACE) |
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| 26 | , m_window(0) |
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| 27 | { |
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| 28 | m_window = qt_egl_device_integration()->createNativeOffscreenWindow(format); |
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| 29 | if (!m_window) { |
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| 30 | qWarning(msg: "QEglFSOffscreenWindow: Failed to create native window" ); |
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| 31 | return; |
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| 32 | } |
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| 33 | EGLConfig config = q_configFromGLFormat(display: m_display, format: m_format); |
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| 34 | m_surface = eglCreateWindowSurface(dpy: m_display, config, win: m_window, attrib_list: nullptr); |
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| 35 | if (m_surface != EGL_NO_SURFACE) |
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| 36 | m_format = q_glFormatFromConfig(display: m_display, config); |
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| 37 | } |
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| 38 | |
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| 39 | QEglFSOffscreenWindow::~QEglFSOffscreenWindow() |
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| 40 | { |
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| 41 | if (m_surface != EGL_NO_SURFACE) |
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| 42 | eglDestroySurface(dpy: m_display, surface: m_surface); |
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| 43 | if (m_window) |
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| 44 | qt_egl_device_integration()->destroyNativeWindow(window: m_window); |
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| 45 | } |
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| 46 | |
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| 47 | QT_END_NAMESPACE |
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| 48 | |
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