1 files changed, 136 insertions, 0 deletions
diff --git a/src/plugins/platforms/windows/qwindowsvulkaninstance.cpp b/src/plugins/platforms/windows/qwindowsvulkaninstance.cpp
new file mode 100644
index 0000000000..d81ee8ba29
--- /dev/null
+++ b/src/plugins/platforms/windows/qwindowsvulkaninstance.cpp
@@ -0,0 +1,136 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 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.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwindowsvulkaninstance.h"
+
+QT_BEGIN_NAMESPACE
+
+QWindowsVulkanInstance::QWindowsVulkanInstance(QVulkanInstance *instance)
+    : m_instance(instance),
+      m_getPhysDevPresSupport(nullptr),
+      m_createSurface(nullptr),
+      m_destroySurface(nullptr)
+{
+    if (qEnvironmentVariableIsSet("QT_VULKAN_LIB"))
+        m_lib.setFileName(QString::fromUtf8(qgetenv("QT_VULKAN_LIB")));
+    else
+        m_lib.setFileName(QStringLiteral("vulkan-1"));
+
+    if (!m_lib.load()) {
+        qWarning("Failed to load %s: %s", qPrintable(m_lib.fileName()), qPrintable(m_lib.errorString()));
+        return;
+    }
+
+    init(&m_lib);
+}
+
+void QWindowsVulkanInstance::createOrAdoptInstance()
+{
+    initInstance(m_instance, QByteArrayList() << QByteArrayLiteral("VK_KHR_win32_surface"));
+
+    if (!m_vkInst)
+        return;
+
+    m_getPhysDevPresSupport = reinterpret_cast<PFN_vkGetPhysicalDeviceWin32PresentationSupportKHR>(
+                m_vkGetInstanceProcAddr(m_vkInst, "vkGetPhysicalDeviceWin32PresentationSupportKHR"));
+    if (!m_getPhysDevPresSupport)
+        qWarning("Failed to find vkGetPhysicalDeviceWin32PresentationSupportKHR");
+}
+
+QWindowsVulkanInstance::~QWindowsVulkanInstance()
+{
+}
+
+bool QWindowsVulkanInstance::supportsPresent(VkPhysicalDevice physicalDevice,
+                                             uint32_t queueFamilyIndex,
+                                             QWindow *window)
+{
+    if (!m_getPhysDevPresSupport || !m_getPhysDevSurfaceSupport)
+        return true;
+
+    bool ok = m_getPhysDevPresSupport(physicalDevice, queueFamilyIndex);
+
+    VkSurfaceKHR surface = QVulkanInstance::surfaceForWindow(window);
+    VkBool32 supported = false;
+    m_getPhysDevSurfaceSupport(physicalDevice, queueFamilyIndex, surface, &supported);
+    ok &= bool(supported);
+
+    return ok;
+}
+
+VkSurfaceKHR QWindowsVulkanInstance::createSurface(HWND win)
+{
+    VkSurfaceKHR surface = 0;
+
+    if (!m_createSurface) {
+        m_createSurface = reinterpret_cast<PFN_vkCreateWin32SurfaceKHR>(
+                    m_vkGetInstanceProcAddr(m_vkInst, "vkCreateWin32SurfaceKHR"));
+    }
+    if (!m_createSurface) {
+        qWarning("Failed to find vkCreateWin32SurfaceKHR");
+        return surface;
+    }
+    if (!m_destroySurface) {
+        m_destroySurface = reinterpret_cast<PFN_vkDestroySurfaceKHR>(
+                    m_vkGetInstanceProcAddr(m_vkInst, "vkDestroySurfaceKHR"));
+    }
+    if (!m_destroySurface) {
+        qWarning("Failed to find vkDestroySurfaceKHR");
+        return surface;
+    }
+
+    VkWin32SurfaceCreateInfoKHR surfaceInfo;
+    memset(&surfaceInfo, 0, sizeof(surfaceInfo));
+    surfaceInfo.sType = VK_STRUCTURE_TYPE_WIN32_SURFACE_CREATE_INFO_KHR;
+    surfaceInfo.hinstance = GetModuleHandle(nullptr);
+    surfaceInfo.hwnd = win;
+    VkResult err = m_createSurface(m_vkInst, &surfaceInfo, nullptr, &surface);
+    if (err != VK_SUCCESS)
+        qWarning("Failed to create Vulkan surface: %d", err);
+
+    return surface;
+}
+
+void QWindowsVulkanInstance::destroySurface(VkSurfaceKHR surface)
+{
+    if (m_destroySurface && surface)
+        m_destroySurface(m_vkInst, surface, nullptr);
+}
+
+QT_END_NAMESPACE