qandroidplatformvulkanwindow.cpp

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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:significant reason:default
 
#include "androidjnimain.h"
#include "qandroidplatformscreen.h"
#include "qandroidplatformvulkanwindow.h"
 
#include <QSurfaceFormat>
#include <qpa/qplatformscreen.h>
#include <qpa/qwindowsysteminterface.h>
 
#include <android/native_window.h>
#include <android/native_window_jni.h>
 
QT_BEGIN_NAMESPACE
 
using namespace Qt::StringLiterals;
 
QAndroidPlatformVulkanWindow::QAndroidPlatformVulkanWindow(QWindow *window)
    : QAndroidPlatformWindow(window)
{
}
 
QAndroidPlatformVulkanWindow::~QAndroidPlatformVulkanWindow()
{
    // The base class destructor can't reach destroyWindowSurface().
    destroySurface();
}
 
void QAndroidPlatformVulkanWindow::setGeometry(const QRect &rect)
{
    QAndroidPlatformWindow::setGeometry(rect);
 
    // Like the OpenGL window, programmatic resizes need an expose to
    // re-layout widget-embedded scenes.
    if (!rect.isEmpty() && !screen()->availableGeometry().isEmpty())
        QWindowSystemInterface::handleExposeEvent(window(), QRegion(QRect(QPoint(), rect.size())));
}
 
QSurfaceFormat QAndroidPlatformVulkanWindow::format() const
{
    return window()->requestedFormat();
}
 
VkSurfaceKHR *QAndroidPlatformVulkanWindow::vkSurface()
{
    if (Q_LIKELY(m_vkSurface != VK_NULL_HANDLE))
        return &m_vkSurface;
    ensureNativeWindow();
    if (!m_nativeWindow)
        return &m_vkSurface;
 
    QVulkanInstance *inst = window()->vulkanInstance();
    if (!inst) {
        qWarning("Attempted to create Vulkan surface without an instance; "
                 "was QWindow::setVulkanInstance() called?");
        return &m_vkSurface;
    }
    if (!m_createVkSurface) {
        m_createVkSurface = reinterpret_cast<PFN_vkCreateAndroidSurfaceKHR>(
                    inst->getInstanceProcAddr("vkCreateAndroidSurfaceKHR"));
    }
    if (!m_destroyVkSurface) {
        m_destroyVkSurface = reinterpret_cast<PFN_vkDestroySurfaceKHR>(
                    inst->getInstanceProcAddr("vkDestroySurfaceKHR"));
    }
    VkAndroidSurfaceCreateInfoKHR surfaceInfo {};
    surfaceInfo.sType = VK_STRUCTURE_TYPE_ANDROID_SURFACE_CREATE_INFO_KHR;
    surfaceInfo.window = m_nativeWindow;
    const VkResult err = m_createVkSurface(inst->vkInstance(), &surfaceInfo, nullptr, &m_vkSurface);
    if (err != VK_SUCCESS)
        qWarning("Failed to create Android VkSurface: %d", err);
    return &m_vkSurface;
}
 
void QAndroidPlatformVulkanWindow::destroyWindowSurface()
{
    if (m_vkSurface && m_destroyVkSurface) {
        m_destroyVkSurface(window()->vulkanInstance()->vkInstance(), m_vkSurface, nullptr);
        m_vkSurface = VK_NULL_HANDLE;
    }
}
 
QT_END_NAMESPACE