[fix]: 增强Vulkan支持检测及运行时处理

- **添加Vulkan运行时支持检测**：通过`VulkanViewer::isSupported()`静态方法检查系统是否支持Vulkan，避免在不支持的环境下初始化相关组件。 - **条件化Vulkan组件创建**：仅在检测到Vulkan支持时创建`VulkanViewer`实例，防止运行时崩溃。 - **动态控制菜单项显示**：若Vulkan不可用，菜单中对应的"Vulkan Viewer"选项将不会显示。 - **优化Vulkan实例管理**：在`VulkanView`中增加`isVulkanSupported()`全局检测函数，输出Vulkan版本信息以便调试。 - **修复潜在空指针问题**：将`vulkanViewer`指针初始化为`nullptr`，并增加判空保护逻辑。
RealChuan · Feb 20, 2025 · 18005a5 · 18005a5
1 parent 750baac
commit 18005a5
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Showing 5 changed files with 32 additions and 6 deletions.
diff --git a/examples/graphics/mainwindow.cpp b/examples/graphics/mainwindow.cpp
@@ -29,8 +29,10 @@ class MainWindow::MainWindowPrivate
         stackedWidget->addWidget(subtitlSplicingWidget);
         stackedWidget->addWidget(openglViewer);
 #ifdef BUILD_VULKAN
-        vulkanViewer = new VulkanViewer(q_ptr);
-        stackedWidget->addWidget(vulkanViewer);
+        if (VulkanViewer::isSupported()) {
+            vulkanViewer = new VulkanViewer(q_ptr);
+            stackedWidget->addWidget(vulkanViewer);
+        }
 #endif
     }
     ~MainWindowPrivate() {}
@@ -41,7 +43,7 @@ class MainWindow::MainWindowPrivate
     ImageViewer *imageViewer;
     OpenglViewer *openglViewer;
 #ifdef BUILD_VULKAN
-    VulkanViewer *vulkanViewer;
+    VulkanViewer *vulkanViewer = nullptr;
 #endif
     SubtitlSplicingWidget *subtitlSplicingWidget;
     QStackedWidget *stackedWidget;
@@ -99,9 +101,11 @@ void MainWindow::initMenuBar()
         d_ptr->stackedWidget->setCurrentWidget(d_ptr->openglViewer);
     }));
 #ifdef BUILD_VULKAN
-    setCheckable(menu->addAction(tr("Vulakn Viewer"), this, [this] {
-        d_ptr->stackedWidget->setCurrentWidget(d_ptr->vulkanViewer);
-    }));
+    if (nullptr != d_ptr->vulkanViewer) {
+        setCheckable(menu->addAction(tr("Vulakn Viewer"), this, [this] {
+            d_ptr->stackedWidget->setCurrentWidget(d_ptr->vulkanViewer);
+        }));
+    }
 #endif
     setCheckable(menu->addAction(tr("Draw"), this, [this] {
         d_ptr->stackedWidget->setCurrentWidget(d_ptr->drawWidget);

diff --git a/examples/graphics/vulkanviewer.cc b/examples/graphics/vulkanviewer.cc
@@ -33,6 +33,12 @@ VulkanViewer::~VulkanViewer()
     clearThumbnail();
 }
 
+bool VulkanViewer::isSupported()
+{
+    static bool ret = GpuGraphics::isVulkanSupported();
+    return ret;
+}
+
 void VulkanViewer::onOpenImage()
 {
     const auto filename = openImage();

diff --git a/examples/graphics/vulkanviewer.hpp b/examples/graphics/vulkanviewer.hpp
@@ -10,6 +10,8 @@ class VulkanViewer : public Viewer
     explicit VulkanViewer(QWidget *parent = nullptr);
     ~VulkanViewer() override;
 
+    static bool isSupported();
+
 private slots:
     void onOpenImage();
     void onChangedImage(int index);

diff --git a/src/gpugraphics/vulkanview.cc b/src/gpugraphics/vulkanview.cc
@@ -6,6 +6,17 @@
 
 namespace GpuGraphics {
 
+bool isVulkanSupported()
+{
+    QVulkanInstance inst;
+    if (inst.create()) {
+        inst.destroy();
+        return true;
+    }
+    qWarning() << "Vulkan is not supported, error code:" << inst.errorCode();
+    return false;
+}
+
 class VulkanView::VulkanViewPrivate
 {
 public:
@@ -28,6 +39,7 @@ class VulkanView::VulkanViewPrivate
         if (!inst.create()) {
             qFatal("Failed to create Vulkan instance: %d", inst.errorCode());
         }
+        qInfo() << "Vulkan Version: " << inst.apiVersion();
         q_ptr->setVulkanInstance(&inst);
 
         menuPtr.reset(new QMenu);

diff --git a/src/gpugraphics/vulkanview.hpp b/src/gpugraphics/vulkanview.hpp
@@ -7,6 +7,8 @@
 
 namespace GpuGraphics {
 
+GPUAPHICS bool isVulkanSupported();
+
 class VulkanRenderer;
 
 class GPUAPHICS VulkanView : public QVulkanWindow