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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
#include "androiddeadlockprotector.h"
#include "androidjnimain.h"
#include "qandroideventdispatcher.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
QAndroidPlatformVulkanWindow::QAndroidPlatformVulkanWindow(QWindow *window)
: QAndroidPlatformWindow(window),
m_nativeWindow(nullptr),
m_vkSurface(0),
m_createVkSurface(nullptr),
m_destroyVkSurface(nullptr)
{
}
QAndroidPlatformVulkanWindow::~QAndroidPlatformVulkanWindow()
{
m_surfaceWaitCondition.wakeOne();
destroyAndClearSurface();
}
void QAndroidPlatformVulkanWindow::setGeometry(const QRect &rect)
{
if (rect == geometry())
return;
m_oldGeometry = geometry();
QAndroidPlatformWindow::setGeometry(rect);
if (m_surfaceCreated)
setNativeGeometry(rect);
QRect availableGeometry = screen()->availableGeometry();
if (rect.width() > 0
&& rect.height() > 0
&& availableGeometry.width() > 0
&& availableGeometry.height() > 0) {
QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(0, 0), rect.size()));
}
}
void QAndroidPlatformVulkanWindow::applicationStateChanged(Qt::ApplicationState state)
{
QAndroidPlatformWindow::applicationStateChanged(state);
if (state <= Qt::ApplicationHidden) {
destroyAndClearSurface();
}
}
QSurfaceFormat QAndroidPlatformVulkanWindow::format() const
{
return window()->requestedFormat();
}
void QAndroidPlatformVulkanWindow::clearSurface()
{
if (m_vkSurface && m_destroyVkSurface) {
m_destroyVkSurface(window()->vulkanInstance()->vkInstance(), m_vkSurface, nullptr);
m_vkSurface = 0;
}
if (m_nativeWindow) {
ANativeWindow_release(m_nativeWindow);
m_nativeWindow = nullptr;
}
}
void QAndroidPlatformVulkanWindow::destroyAndClearSurface()
{
lockSurface();
destroySurface();
clearSurface();
unlockSurface();
}
VkSurfaceKHR *QAndroidPlatformVulkanWindow::vkSurface()
{
if (QAndroidEventDispatcherStopper::stopped())
return &m_vkSurface;
bool needsExpose = false;
if (!m_vkSurface) {
clearSurface();
QMutexLocker lock(&m_surfaceMutex);
if (!m_surfaceCreated) {
AndroidDeadlockProtector protector;
if (!protector.acquire())
return &m_vkSurface;
createSurface();
m_surfaceWaitCondition.wait(&m_surfaceMutex);
}
if (!m_surfaceCreated || !m_androidSurfaceObject.isValid())
return &m_vkSurface;
QJniEnvironment env;
m_nativeWindow = ANativeWindow_fromSurface(env.jniEnv(), m_androidSurfaceObject.object());
VkAndroidSurfaceCreateInfoKHR surfaceInfo;
memset(&surfaceInfo, 0, sizeof(surfaceInfo));
surfaceInfo.sType = VK_STRUCTURE_TYPE_ANDROID_SURFACE_CREATE_INFO_KHR;
surfaceInfo.window = m_nativeWindow;
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"));
}
VkResult err = m_createVkSurface(inst->vkInstance(), &surfaceInfo, nullptr, &m_vkSurface);
if (err != VK_SUCCESS)
qWarning("Failed to create Android VkSurface: %d", err);
needsExpose = true;
}
if (needsExpose)
sendExpose();
return &m_vkSurface;
}
QT_END_NAMESPACE
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