From 8d72aba9e3358fdf51578533ab7f46602f7fd103 Mon Sep 17 00:00:00 2001 From: Laszlo Agocs Date: Sun, 12 Feb 2017 15:08:52 +0100 Subject: Introduce QVulkanWindow A convenience subclass of QWindow that provides a Vulkan-capable window with a double-buffered FIFO swapchain. While advanced use cases are better served by a custom QWindow subclass, many applications can benefit from having a convenient helper that makes getting started easier. Add also three examples of increasing complexity, and a variant that shows embeddeding into widgets via QWindowContainer. [ChangeLog][QtGui] Added QVulkanWindow, a convenience subclass of QWindow. Task-number: QTBUG-55981 Change-Id: I6cdc9ff1390ac6258e278377233fd369a0bfeddc Reviewed-by: Andy Nichols --- tests/auto/gui/qvulkan/tst_qvulkan.cpp | 282 ++++++++++++++++++++++++++++++++- 1 file changed, 279 insertions(+), 3 deletions(-) (limited to 'tests/auto/gui/qvulkan') diff --git a/tests/auto/gui/qvulkan/tst_qvulkan.cpp b/tests/auto/gui/qvulkan/tst_qvulkan.cpp index 2803b84e8c..8027935003 100644 --- a/tests/auto/gui/qvulkan/tst_qvulkan.cpp +++ b/tests/auto/gui/qvulkan/tst_qvulkan.cpp @@ -28,7 +28,7 @@ #include #include -#include +#include #include @@ -41,8 +41,11 @@ class tst_QVulkan : public QObject private slots: void vulkanInstance(); void vulkanCheckSupported(); - void vulkanWindow(); + void vulkanPlainWindow(); void vulkanVersionRequest(); + void vulkanWindow(); + void vulkanWindowRenderer(); + void vulkanWindowGrab(); }; void tst_QVulkan::vulkanInstance() @@ -102,7 +105,7 @@ void tst_QVulkan::vulkanCheckSupported() } } -void tst_QVulkan::vulkanWindow() +void tst_QVulkan::vulkanPlainWindow() { QVulkanInstance inst; if (!inst.create()) @@ -154,6 +157,279 @@ void tst_QVulkan::vulkanVersionRequest() QCOMPARE(inst.errorCode(), VK_ERROR_INCOMPATIBLE_DRIVER); } +static void waitForUnexposed(QWindow *w) +{ + QElapsedTimer timer; + timer.start(); + while (w->isExposed()) { + int remaining = 5000 - int(timer.elapsed()); + if (remaining <= 0) + break; + QCoreApplication::processEvents(QEventLoop::AllEvents, remaining); + QCoreApplication::sendPostedEvents(Q_NULLPTR, QEvent::DeferredDelete); + QTest::qSleep(10); + } +} + +void tst_QVulkan::vulkanWindow() +{ + QVulkanInstance inst; + if (!inst.create()) + QSKIP("Vulkan init failed; skip"); + + // First let's forget to set the instance. + QVulkanWindow w; + QVERIFY(!w.isValid()); + w.resize(1024, 768); + w.show(); + QTest::qWaitForWindowExposed(&w); + QVERIFY(!w.isValid()); + + // Now set it. A simple hide - show should be enough to correct, this, no + // need for a full destroy - create. + w.hide(); + waitForUnexposed(&w); + w.setVulkanInstance(&inst); + QVector pdevs = w.availablePhysicalDevices(); + if (pdevs.isEmpty()) + QSKIP("No Vulkan physical devices; skip"); + w.show(); + QTest::qWaitForWindowExposed(&w); + QVERIFY(w.isValid()); + QCOMPARE(w.vulkanInstance(), &inst); + QVulkanInfoVector exts = w.supportedDeviceExtensions(); + + // Now destroy and recreate. + w.destroy(); + waitForUnexposed(&w); + QVERIFY(!w.isValid()); + // check that flags can be set between a destroy() - show() + w.setFlags(QVulkanWindow::PersistentResources); + // supported lists can be queried before expose too + QVERIFY(w.supportedDeviceExtensions() == exts); + w.show(); + QTest::qWaitForWindowExposed(&w); + QVERIFY(w.isValid()); + QVERIFY(w.flags().testFlag(QVulkanWindow::PersistentResources)); + + QVERIFY(w.physicalDevice() != VK_NULL_HANDLE); + QVERIFY(w.physicalDeviceProperties() != nullptr); + QVERIFY(w.device() != VK_NULL_HANDLE); + QVERIFY(w.graphicsQueue() != VK_NULL_HANDLE); + QVERIFY(w.graphicsCommandPool() != VK_NULL_HANDLE); + QVERIFY(w.defaultRenderPass() != VK_NULL_HANDLE); + + QVERIFY(w.concurrentFrameCount() > 0); + QVERIFY(w.concurrentFrameCount() <= QVulkanWindow::MAX_CONCURRENT_FRAME_COUNT); +} + +class TestVulkanRenderer; + +class TestVulkanWindow : public QVulkanWindow +{ +public: + QVulkanWindowRenderer *createRenderer() override; + +private: + TestVulkanRenderer *m_renderer = nullptr; +}; + +struct TestVulkan { + int preInitResCount = 0; + int initResCount = 0; + int initSwcResCount = 0; + int releaseResCount = 0; + int releaseSwcResCount = 0; + int startNextFrameCount = 0; +} testVulkan; + +class TestVulkanRenderer : public QVulkanWindowRenderer +{ +public: + TestVulkanRenderer(QVulkanWindow *w) : m_window(w) { } + + void preInitResources() override; + void initResources() override; + void initSwapChainResources() override; + void releaseSwapChainResources() override; + void releaseResources() override; + + void startNextFrame() override; + +private: + QVulkanWindow *m_window; + QVulkanDeviceFunctions *m_devFuncs; +}; + +void TestVulkanRenderer::preInitResources() +{ + if (testVulkan.initResCount) { + qWarning("initResources called before preInitResources?!"); + testVulkan.preInitResCount = -1; + return; + } + + // Ensure the physical device and the surface are available at this stage. + VkPhysicalDevice physDev = m_window->physicalDevice(); + if (physDev == VK_NULL_HANDLE) { + qWarning("No physical device in preInitResources"); + testVulkan.preInitResCount = -1; + return; + } + VkSurfaceKHR surface = m_window->vulkanInstance()->surfaceForWindow(m_window); + if (surface == VK_NULL_HANDLE) { + qWarning("No surface in preInitResources"); + testVulkan.preInitResCount = -1; + return; + } + + ++testVulkan.preInitResCount; +} + +void TestVulkanRenderer::initResources() +{ + m_devFuncs = m_window->vulkanInstance()->deviceFunctions(m_window->device()); + ++testVulkan.initResCount; +} + +void TestVulkanRenderer::initSwapChainResources() +{ + ++testVulkan.initSwcResCount; +} + +void TestVulkanRenderer::releaseSwapChainResources() +{ + ++testVulkan.releaseSwcResCount; +} + +void TestVulkanRenderer::releaseResources() +{ + ++testVulkan.releaseResCount; +} + +void TestVulkanRenderer::startNextFrame() +{ + ++testVulkan.startNextFrameCount; + + VkClearColorValue clearColor = { 0, 1, 0, 1 }; + VkClearDepthStencilValue clearDS = { 1, 0 }; + VkClearValue clearValues[2]; + memset(clearValues, 0, sizeof(clearValues)); + clearValues[0].color = clearColor; + clearValues[1].depthStencil = clearDS; + + VkRenderPassBeginInfo rpBeginInfo; + memset(&rpBeginInfo, 0, sizeof(rpBeginInfo)); + rpBeginInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO; + rpBeginInfo.renderPass = m_window->defaultRenderPass(); + rpBeginInfo.framebuffer = m_window->currentFramebuffer(); + const QSize sz = m_window->swapChainImageSize(); + rpBeginInfo.renderArea.extent.width = sz.width(); + rpBeginInfo.renderArea.extent.height = sz.height(); + rpBeginInfo.clearValueCount = 2; + rpBeginInfo.pClearValues = clearValues; + VkCommandBuffer cmdBuf = m_window->currentCommandBuffer(); + m_devFuncs->vkCmdBeginRenderPass(cmdBuf, &rpBeginInfo, VK_SUBPASS_CONTENTS_INLINE); + + m_devFuncs->vkCmdEndRenderPass(cmdBuf); + + m_window->frameReady(); +} + +QVulkanWindowRenderer *TestVulkanWindow::createRenderer() +{ + Q_ASSERT(!m_renderer); + m_renderer = new TestVulkanRenderer(this); + return m_renderer; +} + +void tst_QVulkan::vulkanWindowRenderer() +{ + QVulkanInstance inst; + if (!inst.create()) + QSKIP("Vulkan init failed; skip"); + + testVulkan = TestVulkan(); + + TestVulkanWindow w; + w.setVulkanInstance(&inst); + w.resize(1024, 768); + w.show(); + QTest::qWaitForWindowExposed(&w); + + if (w.availablePhysicalDevices().isEmpty()) + QSKIP("No Vulkan physical devices; skip"); + + QVERIFY(testVulkan.preInitResCount == 1); + QVERIFY(testVulkan.initResCount == 1); + QVERIFY(testVulkan.initSwcResCount == 1); + // this has to be QTRY due to the async update in QVulkanWindowPrivate::ensureStarted() + QTRY_VERIFY(testVulkan.startNextFrameCount >= 1); + + QVERIFY(!w.swapChainImageSize().isEmpty()); + QVERIFY(w.colorFormat() != VK_FORMAT_UNDEFINED); + QVERIFY(w.depthStencilFormat() != VK_FORMAT_UNDEFINED); + + w.destroy(); + waitForUnexposed(&w); + QVERIFY(testVulkan.releaseSwcResCount == 1); + QVERIFY(testVulkan.releaseResCount == 1); +} + +void tst_QVulkan::vulkanWindowGrab() +{ + QVulkanInstance inst; + inst.setLayers(QByteArrayList() << "VK_LAYER_LUNARG_standard_validation"); + if (!inst.create()) + QSKIP("Vulkan init failed; skip"); + + testVulkan = TestVulkan(); + + TestVulkanWindow w; + w.setVulkanInstance(&inst); + w.resize(1024, 768); + w.show(); + QTest::qWaitForWindowExposed(&w); + + if (w.availablePhysicalDevices().isEmpty()) + QSKIP("No Vulkan physical devices; skip"); + + if (!w.supportsGrab()) + QSKIP("No grab support; skip"); + + QVERIFY(!w.swapChainImageSize().isEmpty()); + + QImage img1 = w.grab(); + QImage img2 = w.grab(); + QImage img3 = w.grab(); + + QVERIFY(!img1.isNull()); + QVERIFY(!img2.isNull()); + QVERIFY(!img3.isNull()); + + QCOMPARE(img1.size(), w.swapChainImageSize()); + QCOMPARE(img2.size(), w.swapChainImageSize()); + QCOMPARE(img3.size(), w.swapChainImageSize()); + + QRgb a = img1.pixel(10, 20); + QRgb b = img2.pixel(5, 5); + QRgb c = img3.pixel(50, 30); + + QCOMPARE(a, b); + QCOMPARE(b, c); + QRgb refPixel = qRgb(0, 255, 0); + + int redFuzz = qAbs(qRed(a) - qRed(refPixel)); + int greenFuzz = qAbs(qGreen(a) - qGreen(refPixel)); + int blueFuzz = qAbs(qBlue(a) - qBlue(refPixel)); + + QVERIFY(redFuzz <= 1); + QVERIFY(blueFuzz <= 1); + QVERIFY(greenFuzz <= 1); + + w.destroy(); +} + QTEST_MAIN(tst_QVulkan) #include "tst_qvulkan.moc" -- cgit v1.2.3