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author | Morten Johan Sørvig <morten.sorvig@qt.io> | 2018-03-08 14:05:21 +0100 |
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committer | Morten Johan Sørvig <morten.sorvig@qt.io> | 2018-05-08 11:27:26 +0000 |
commit | 60457e6cd04486f5503b94864d898a91a4df79e0 (patch) | |
tree | 7cf24dbb511e798c8f912fd45ee4b2a2ef66b6d4 /src/plugins/platforms/cocoa/qcocoavulkaninstance.h | |
parent | 0b815aa2f83ca30a3d32b2276c2b39d224b233b1 (diff) |
macOS: Experimental Vulkan support via MoltenVK
Add support for QSurface::VulkanSurface and QVulkanWindow.
Usage:
1) Build MoltenVK according to instructions
2) Configure Qt: ./configure -I /path/to/MoltenVK/Package/Release/MoltenVK/include
3) export QT_VULKAN_LIB=/path/to/MoltenVK/Package/Release/MoltenVK/macOS/libMoltenVK.
Implement support for QSurface::VulkanSurface by enabling
layer mode for QNSView and then creating a CAMetalLayer,
which the MoltenVK translation layer can run on.
MoltenVK provides an implementation of the Vulcan API,
which means that the platform integration is similar
to other platforms: implement a QCocoaVulkanInstance
where we pass the QNSView instance to the vkCreateMacOSSurfaceMVK
Vulkan surface constructor function.
Using Vulkan directly without QVulkanWindow is possible, but not
tested.
We currently load libMoltenVK at run-time and use the
existing QT_VULKAN_LIB environment variable to set its
path. For deployment purposes it would be better to
link against MoltenVK.frameworkm, but this
Task-number: QTBUG-66966
Change-Id: I04ec6289c40b199dca9fed32902b5d2ad4e9c030
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
Diffstat (limited to 'src/plugins/platforms/cocoa/qcocoavulkaninstance.h')
-rw-r--r-- | src/plugins/platforms/cocoa/qcocoavulkaninstance.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/plugins/platforms/cocoa/qcocoavulkaninstance.h b/src/plugins/platforms/cocoa/qcocoavulkaninstance.h new file mode 100644 index 0000000000..c9c6cf7e3f --- /dev/null +++ b/src/plugins/platforms/cocoa/qcocoavulkaninstance.h @@ -0,0 +1,74 @@ +/**************************************************************************** +** +** Copyright (C) 2018 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of 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 QCOCOAVULKANINSTANCE_H +#define QCOCOAVULKANINSTANCE_H + +#include <QtCore/QLibrary> +#include <QtCore/QHash> +#include <QtVulkanSupport/private/qbasicvulkanplatforminstance_p.h> + +#include <AppKit/AppKit.h> + +#include <MoltenVK/mvk_vulkan.h> + +QT_BEGIN_NAMESPACE + +class QCocoaVulkanInstance : public QBasicPlatformVulkanInstance +{ +public: + QCocoaVulkanInstance(QVulkanInstance *instance); + ~QCocoaVulkanInstance(); + + void createOrAdoptInstance() override; + + VkSurfaceKHR *createSurface(QWindow *window); + VkSurfaceKHR createSurface(NSView *view); + void destroySurface(VkSurfaceKHR surface); +private: + QVulkanInstance *m_instance = nullptr; + QLibrary m_lib; + VkSurfaceKHR m_nullSurface = nullptr; + PFN_vkCreateMacOSSurfaceMVK m_createSurface = nullptr; + PFN_vkDestroySurfaceKHR m_destroySurface = nullptr; +}; + +QT_END_NAMESPACE + +#endif // QXCBVULKANINSTANCE_H |