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019f35524d
qt5base-lts/tests/auto/gui/rhi/qrhi/tst_qrhi.cpp
Volker Hilsheimer 019f35524d Fix compiler warning on platforms without QRhiNativeHandles 
Pick-to: 6.1
Change-Id: I61254290853cadf3b1edf6e7b0f82bba9e8d2efe
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2021-04-12 10:41:50 +02:00

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/****************************************************************************
**
** Copyright (C) 2019 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** 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 General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** 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-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QTest>
#include <QThread>
#include <QFile>
#include <QOffscreenSurface>
#include <QPainter>
#include <QtGui/private/qrhi_p.h>
#include <QtGui/private/qrhinull_p.h>
#if QT_CONFIG(opengl)
# include <QOpenGLContext>
# include <QtGui/private/qrhigles2_p.h>
# define TST_GL
#endif
#if QT_CONFIG(vulkan)
# include <QVulkanInstance>
# include <QVulkanFunctions>
# include <QtGui/private/qrhivulkan_p.h>
# define TST_VK
#endif
#ifdef Q_OS_WIN
#include <QtGui/private/qrhid3d11_p.h>
# define TST_D3D11
#endif
#if defined(Q_OS_MACOS) || defined(Q_OS_IOS)
# include <QtGui/private/qrhimetal_p.h>
# define TST_MTL
#endif
Q_DECLARE_METATYPE(QRhi::Implementation)
Q_DECLARE_METATYPE(QRhiInitParams *)
class tst_QRhi : public QObject
{
Q_OBJECT
private slots:
void initTestCase();
void cleanupTestCase();
void rhiTestData();
void create_data();
void create();
void nativeHandles_data();
void nativeHandles();
void nativeHandlesImportVulkan();
void nativeHandlesImportD3D11();
void nativeHandlesImportOpenGL();
void nativeTexture_data();
void nativeTexture();
void nativeBuffer_data();
void nativeBuffer();
void resourceUpdateBatchBuffer_data();
void resourceUpdateBatchBuffer();
void resourceUpdateBatchRGBATextureUpload_data();
void resourceUpdateBatchRGBATextureUpload();
void resourceUpdateBatchRGBATextureCopy_data();
void resourceUpdateBatchRGBATextureCopy();
void resourceUpdateBatchRGBATextureMip_data();
void resourceUpdateBatchRGBATextureMip();
void resourceUpdateBatchTextureRawDataStride_data();
void resourceUpdateBatchTextureRawDataStride();
void invalidPipeline_data();
void invalidPipeline();
void srbLayoutCompatibility_data();
void srbLayoutCompatibility();
void srbWithNoResource_data();
void srbWithNoResource();
void renderPassDescriptorCompatibility_data();
void renderPassDescriptorCompatibility();
void renderPassDescriptorClone_data();
void renderPassDescriptorClone();
void renderToTextureSimple_data();
void renderToTextureSimple();
void renderToTextureMip_data();
void renderToTextureMip();
void renderToTextureCubemapFace_data();
void renderToTextureCubemapFace();
void renderToTextureTexturedQuad_data();
void renderToTextureTexturedQuad();
void renderToTextureArrayOfTexturedQuad_data();
void renderToTextureArrayOfTexturedQuad();
void renderToTextureTexturedQuadAndUniformBuffer_data();
void renderToTextureTexturedQuadAndUniformBuffer();
void renderToTextureTexturedQuadAllDynamicBuffers_data();
void renderToTextureTexturedQuadAllDynamicBuffers();
void renderToTextureDeferredSrb_data();
void renderToTextureDeferredSrb();
void renderToTextureMultipleUniformBuffersAndDynamicOffset_data();
void renderToTextureMultipleUniformBuffersAndDynamicOffset();
void renderToTextureSrbReuse_data();
void renderToTextureSrbReuse();
void renderToWindowSimple_data();
void renderToWindowSimple();
void finishWithinSwapchainFrame_data();
void finishWithinSwapchainFrame();
void pipelineCache_data();
void pipelineCache();
private:
void setWindowType(QWindow *window, QRhi::Implementation impl);
struct {
QRhiNullInitParams null;
#ifdef TST_GL
QRhiGles2InitParams gl;
#endif
#ifdef TST_VK
QRhiVulkanInitParams vk;
#endif
#ifdef TST_D3D11
QRhiD3D11InitParams d3d;
#endif
#ifdef TST_MTL
QRhiMetalInitParams mtl;
#endif
} initParams;
#ifdef TST_VK
QVulkanInstance vulkanInstance;
#endif
QOffscreenSurface *fallbackSurface = nullptr;
};
void tst_QRhi::initTestCase()
{
#ifdef TST_GL
fallbackSurface = QRhiGles2InitParams::newFallbackSurface();
initParams.gl.fallbackSurface = fallbackSurface;
#endif
#ifdef TST_VK
#ifndef Q_OS_ANDROID
vulkanInstance.setLayers({ QByteArrayLiteral("VK_LAYER_LUNARG_standard_validation") });
#else
vulkanInstance.setLayers({ QByteArrayLiteral("VK_LAYER_GOOGLE_threading"),
QByteArrayLiteral("VK_LAYER_LUNARG_parameter_validation"),
QByteArrayLiteral("VK_LAYER_LUNARG_object_tracker"),
QByteArrayLiteral("VK_LAYER_LUNARG_core_validation"),
QByteArrayLiteral("VK_LAYER_LUNARG_image"),
QByteArrayLiteral("VK_LAYER_LUNARG_swapchain"),
QByteArrayLiteral("VK_LAYER_GOOGLE_unique_objects") });
#endif
vulkanInstance.setExtensions(QRhiVulkanInitParams::preferredInstanceExtensions());
vulkanInstance.create();
initParams.vk.inst = &vulkanInstance;
#endif
#ifdef TST_D3D11
initParams.d3d.enableDebugLayer = true;
#endif
}
void tst_QRhi::cleanupTestCase()
{
#ifdef TST_VK
vulkanInstance.destroy();
#endif
delete fallbackSurface;
}
void tst_QRhi::rhiTestData()
{
QTest::addColumn<QRhi::Implementation>("impl");
QTest::addColumn<QRhiInitParams *>("initParams");
QTest::newRow("Null") << QRhi::Null << static_cast<QRhiInitParams *>(&initParams.null);
#ifdef TST_GL
QTest::newRow("OpenGL") << QRhi::OpenGLES2 << static_cast<QRhiInitParams *>(&initParams.gl);
#endif
#ifdef TST_VK
if (vulkanInstance.isValid())
QTest::newRow("Vulkan") << QRhi::Vulkan << static_cast<QRhiInitParams *>(&initParams.vk);
#endif
#ifdef TST_D3D11
QTest::newRow("Direct3D 11") << QRhi::D3D11 << static_cast<QRhiInitParams *>(&initParams.d3d);
#endif
#ifdef TST_MTL
QTest::newRow("Metal") << QRhi::Metal << static_cast<QRhiInitParams *>(&initParams.mtl);
#endif
}
void tst_QRhi::create_data()
{
rhiTestData();
}
static int aligned(int v, int a)
{
return (v + a - 1) & ~(a - 1);
}
void tst_QRhi::create()
{
// Merely attempting to create a QRhi should survive, with an error when
// not supported. (of course, there is always a chance we encounter a crash
// due to some random graphics stack...)
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (rhi) {
qDebug() << rhi->driverInfo();
QCOMPARE(rhi->backend(), impl);
QVERIFY(strcmp(rhi->backendName(), ""));
QVERIFY(!rhi->driverInfo().deviceName.isEmpty());
QCOMPARE(rhi->thread(), QThread::currentThread());
// do a basic smoke test for the apis that do not directly render anything
int cleanupOk = 0;
QRhi *rhiPtr = rhi.data();
auto cleanupFunc = [rhiPtr, &cleanupOk](QRhi *dyingRhi) {
if (rhiPtr == dyingRhi)
cleanupOk += 1;
};
rhi->addCleanupCallback(cleanupFunc);
rhi->runCleanup();
QCOMPARE(cleanupOk, 1);
cleanupOk = 0;
rhi->addCleanupCallback(cleanupFunc);
QRhiResourceUpdateBatch *resUpd = rhi->nextResourceUpdateBatch();
QVERIFY(resUpd);
resUpd->release();
QRhiResourceUpdateBatch *resUpdArray[64];
for (int i = 0; i < 64; ++i) {
resUpdArray[i] = rhi->nextResourceUpdateBatch();
QVERIFY(resUpdArray[i]);
}
resUpd = rhi->nextResourceUpdateBatch();
QVERIFY(!resUpd);
for (int i = 0; i < 64; ++i)
resUpdArray[i]->release();
resUpd = rhi->nextResourceUpdateBatch();
QVERIFY(resUpd);
resUpd->release();
QVERIFY(!rhi->supportedSampleCounts().isEmpty());
QVERIFY(rhi->supportedSampleCounts().contains(1));
QVERIFY(rhi->ubufAlignment() > 0);
QCOMPARE(rhi->ubufAligned(123), aligned(123, rhi->ubufAlignment()));
QCOMPARE(rhi->mipLevelsForSize(QSize(512, 300)), 10);
QCOMPARE(rhi->sizeForMipLevel(0, QSize(512, 300)), QSize(512, 300));
QCOMPARE(rhi->sizeForMipLevel(1, QSize(512, 300)), QSize(256, 150));
QCOMPARE(rhi->sizeForMipLevel(2, QSize(512, 300)), QSize(128, 75));
QCOMPARE(rhi->sizeForMipLevel(9, QSize(512, 300)), QSize(1, 1));
const bool fbUp = rhi->isYUpInFramebuffer();
const bool ndcUp = rhi->isYUpInNDC();
const bool d0to1 = rhi->isClipDepthZeroToOne();
const QMatrix4x4 corrMat = rhi->clipSpaceCorrMatrix();
if (impl == QRhi::OpenGLES2) {
QVERIFY(fbUp);
QVERIFY(ndcUp);
QVERIFY(!d0to1);
QVERIFY(corrMat.isIdentity());
} else if (impl == QRhi::Vulkan) {
QVERIFY(!fbUp);
QVERIFY(!ndcUp);
QVERIFY(d0to1);
QVERIFY(!corrMat.isIdentity());
} else if (impl == QRhi::D3D11) {
QVERIFY(!fbUp);
QVERIFY(ndcUp);
QVERIFY(d0to1);
QVERIFY(!corrMat.isIdentity());
} else if (impl == QRhi::Metal) {
QVERIFY(!fbUp);
QVERIFY(ndcUp);
QVERIFY(d0to1);
QVERIFY(!corrMat.isIdentity());
}
const int texMin = rhi->resourceLimit(QRhi::TextureSizeMin);
const int texMax = rhi->resourceLimit(QRhi::TextureSizeMax);
const int maxAtt = rhi->resourceLimit(QRhi::MaxColorAttachments);
const int framesInFlight = rhi->resourceLimit(QRhi::FramesInFlight);
QVERIFY(texMin >= 1);
QVERIFY(texMax >= texMin);
QVERIFY(maxAtt >= 1);
QVERIFY(framesInFlight >= 1);
QVERIFY(rhi->nativeHandles());
QVERIFY(rhi->profiler());
const QRhi::Feature features[] = {
QRhi::MultisampleTexture,
QRhi::MultisampleRenderBuffer,
QRhi::DebugMarkers,
QRhi::Timestamps,
QRhi::Instancing,
QRhi::CustomInstanceStepRate,
QRhi::PrimitiveRestart,
QRhi::NonDynamicUniformBuffers,
QRhi::NonFourAlignedEffectiveIndexBufferOffset,
QRhi::NPOTTextureRepeat,
QRhi::RedOrAlpha8IsRed,
QRhi::ElementIndexUint,
QRhi::Compute,
QRhi::WideLines,
QRhi::VertexShaderPointSize,
QRhi::BaseVertex,
QRhi::BaseInstance,
QRhi::TriangleFanTopology,
QRhi::ReadBackNonUniformBuffer,
QRhi::ReadBackNonBaseMipLevel,
QRhi::TexelFetch,
QRhi::RenderToNonBaseMipLevel,
QRhi::IntAttributes,
QRhi::ScreenSpaceDerivatives,
QRhi::ReadBackAnyTextureFormat,
QRhi::PipelineCacheDataLoadSave,
QRhi::ImageDataStride
};
for (size_t i = 0; i <sizeof(features) / sizeof(QRhi::Feature); ++i)
rhi->isFeatureSupported(features[i]);
QVERIFY(rhi->isTextureFormatSupported(QRhiTexture::RGBA8));
rhi->releaseCachedResources();
QVERIFY(!rhi->isDeviceLost());
rhi.reset();
QCOMPARE(cleanupOk, 1);
}
}
void tst_QRhi::nativeHandles_data()
{
rhiTestData();
}
void tst_QRhi::nativeHandles()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing native handles");
// QRhi::nativeHandles()
{
const QRhiNativeHandles *rhiHandles = rhi->nativeHandles();
Q_ASSERT(rhiHandles);
switch (impl) {
case QRhi::Null:
break;
#ifdef TST_VK
case QRhi::Vulkan:
{
const QRhiVulkanNativeHandles *vkHandles = static_cast<const QRhiVulkanNativeHandles *>(rhiHandles);
QVERIFY(vkHandles->physDev);
QVERIFY(vkHandles->dev);
QVERIFY(vkHandles->gfxQueueFamilyIdx >= 0);
QVERIFY(vkHandles->gfxQueueIdx >= 0);
QVERIFY(vkHandles->gfxQueue);
QVERIFY(vkHandles->vmemAllocator);
}
break;
#endif
#ifdef TST_GL
case QRhi::OpenGLES2:
{
const QRhiGles2NativeHandles *glHandles = static_cast<const QRhiGles2NativeHandles *>(rhiHandles);
QVERIFY(glHandles->context);
QVERIFY(glHandles->context->isValid());
glHandles->context->doneCurrent();
QVERIFY(!QOpenGLContext::currentContext());
rhi->makeThreadLocalNativeContextCurrent();
QVERIFY(QOpenGLContext::currentContext() == glHandles->context);
}
break;
#endif
#ifdef TST_D3D11
case QRhi::D3D11:
{
const QRhiD3D11NativeHandles *d3dHandles = static_cast<const QRhiD3D11NativeHandles *>(rhiHandles);
QVERIFY(d3dHandles->dev);
QVERIFY(d3dHandles->context);
QVERIFY(d3dHandles->featureLevel > 0);
QVERIFY(d3dHandles->adapterLuidLow || d3dHandles->adapterLuidHigh);
}
break;
#endif
#ifdef TST_MTL
case QRhi::Metal:
{
const QRhiMetalNativeHandles *mtlHandles = static_cast<const QRhiMetalNativeHandles *>(rhiHandles);
QVERIFY(mtlHandles->dev);
QVERIFY(mtlHandles->cmdQueue);
}
break;
#endif
default:
Q_ASSERT(false);
}
}
// QRhiCommandBuffer::nativeHandles()
{
QRhiCommandBuffer *cb = nullptr;
QRhi::FrameOpResult result = rhi->beginOffscreenFrame(&cb);
QVERIFY(result == QRhi::FrameOpSuccess);
QVERIFY(cb);
Q_DECL_UNUSED const QRhiNativeHandles *cbHandles = cb->nativeHandles();
// no null check here, backends where not applicable will return null
switch (impl) {
case QRhi::Null:
break;
#ifdef TST_VK
case QRhi::Vulkan:
{
const QRhiVulkanCommandBufferNativeHandles *vkHandles = static_cast<const QRhiVulkanCommandBufferNativeHandles *>(cbHandles);
QVERIFY(vkHandles);
QVERIFY(vkHandles->commandBuffer);
}
break;
#endif
#ifdef TST_GL
case QRhi::OpenGLES2:
break;
#endif
#ifdef TST_D3D11
case QRhi::D3D11:
break;
#endif
#ifdef TST_MTL
case QRhi::Metal:
{
const QRhiMetalCommandBufferNativeHandles *mtlHandles = static_cast<const QRhiMetalCommandBufferNativeHandles *>(cbHandles);
QVERIFY(mtlHandles);
QVERIFY(mtlHandles->commandBuffer);
QVERIFY(!mtlHandles->encoder);
QScopedPointer<QRhiTexture> tex(rhi->newTexture(QRhiTexture::RGBA8, QSize(512, 512), 1, QRhiTexture::RenderTarget));
QVERIFY(tex->create());
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ tex.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
QVERIFY(rpDesc);
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
cb->beginPass(rt.data(), Qt::red, { 1.0f, 0 });
QVERIFY(static_cast<const QRhiMetalCommandBufferNativeHandles *>(cb->nativeHandles())->encoder);
cb->endPass();
}
break;
#endif
default:
Q_ASSERT(false);
}
rhi->endOffscreenFrame();
}
// QRhiRenderPassDescriptor::nativeHandles()
{
QScopedPointer<QRhiTexture> tex(rhi->newTexture(QRhiTexture::RGBA8, QSize(512, 512), 1, QRhiTexture::RenderTarget));
QVERIFY(tex->create());
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ tex.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
QVERIFY(rpDesc);
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
switch (impl) {
case QRhi::Null:
break;
#ifdef TST_VK
case QRhi::Vulkan:
{
const QRhiNativeHandles *rpHandles = rpDesc->nativeHandles();
const QRhiVulkanRenderPassNativeHandles *vkHandles = static_cast<const QRhiVulkanRenderPassNativeHandles *>(rpHandles);
QVERIFY(vkHandles);
QVERIFY(vkHandles->renderPass);
}
break;
#endif
#ifdef TST_GL
case QRhi::OpenGLES2:
break;
#endif
#ifdef TST_D3D11
case QRhi::D3D11:
break;
#endif
#ifdef TST_MTL
case QRhi::Metal:
break;
#endif
default:
Q_ASSERT(false);
}
}
}
void tst_QRhi::nativeHandlesImportVulkan()
{
#ifdef TST_VK
// VkDevice and everything else. For simplicity we'll get QRhi to create one, and then use that with another QRhi.
{
QScopedPointer<QRhi> rhi(QRhi::create(QRhi::Vulkan, &initParams.vk, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("Skipping native Vulkan test");
const QRhiVulkanNativeHandles *nativeHandles = static_cast<const QRhiVulkanNativeHandles *>(rhi->nativeHandles());
QRhiVulkanNativeHandles h = *nativeHandles;
// do not pass the rarely used fields, this is useful to test if it creates its own as expected
h.vmemAllocator = nullptr;
QScopedPointer<QRhi> adoptingRhi(QRhi::create(QRhi::Vulkan, &initParams.vk, QRhi::Flags(), &h));
QVERIFY(adoptingRhi);
const QRhiVulkanNativeHandles *newNativeHandles = static_cast<const QRhiVulkanNativeHandles *>(adoptingRhi->nativeHandles());
QCOMPARE(newNativeHandles->physDev, nativeHandles->physDev);
QCOMPARE(newNativeHandles->dev, nativeHandles->dev);
QCOMPARE(newNativeHandles->gfxQueueFamilyIdx, nativeHandles->gfxQueueFamilyIdx);
QCOMPARE(newNativeHandles->gfxQueueIdx, nativeHandles->gfxQueueIdx);
QVERIFY(newNativeHandles->vmemAllocator != nativeHandles->vmemAllocator);
}
// Physical device only
{
uint32_t physDevCount = 0;
QVulkanFunctions *f = vulkanInstance.functions();
f->vkEnumeratePhysicalDevices(vulkanInstance.vkInstance(), &physDevCount, nullptr);
if (physDevCount < 1)
QSKIP("No Vulkan physical devices, skip");
QVarLengthArray<VkPhysicalDevice, 4> physDevs(physDevCount);
f->vkEnumeratePhysicalDevices(vulkanInstance.vkInstance(), &physDevCount, physDevs.data());
for (uint32_t i = 0; i < physDevCount; ++i) {
QRhiVulkanNativeHandles h;
h.physDev = physDevs[i];
QScopedPointer<QRhi> rhi(QRhi::create(QRhi::Vulkan, &initParams.vk, QRhi::Flags(), &h));
// ok if fails, what we want to know is that if it succeeds, it must use that given phys.dev.
if (!rhi) {
qWarning("Skipping native Vulkan handle test for physical device %u", i);
continue;
}
const QRhiVulkanNativeHandles *actualNativeHandles = static_cast<const QRhiVulkanNativeHandles *>(rhi->nativeHandles());
QCOMPARE(actualNativeHandles->physDev, physDevs[i]);
}
}
#else
QSKIP("Skipping Vulkan-specific test");
#endif
}
void tst_QRhi::nativeHandlesImportD3D11()
{
#ifdef TST_D3D11
QScopedPointer<QRhi> rhi(QRhi::create(QRhi::D3D11, &initParams.d3d, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing D3D11 native handle import");
const QRhiD3D11NativeHandles *nativeHandles = static_cast<const QRhiD3D11NativeHandles *>(rhi->nativeHandles());
// Case 1: device and context
{
QRhiD3D11NativeHandles h = *nativeHandles;
h.featureLevel = 0; // see if these are queried as expected, even when not provided
h.adapterLuidLow = 0;
h.adapterLuidHigh = 0;
QScopedPointer<QRhi> adoptingRhi(QRhi::create(QRhi::D3D11, &initParams.d3d, QRhi::Flags(), &h));
QVERIFY(adoptingRhi);
const QRhiD3D11NativeHandles *newNativeHandles = static_cast<const QRhiD3D11NativeHandles *>(adoptingRhi->nativeHandles());
QCOMPARE(newNativeHandles->dev, nativeHandles->dev);
QCOMPARE(newNativeHandles->context, nativeHandles->context);
QCOMPARE(newNativeHandles->featureLevel, nativeHandles->featureLevel);
QCOMPARE(newNativeHandles->adapterLuidLow, nativeHandles->adapterLuidLow);
QCOMPARE(newNativeHandles->adapterLuidHigh, nativeHandles->adapterLuidHigh);
}
// Case 2: adapter and feature level only (hello OpenXR)
{
QRhiD3D11NativeHandles h = *nativeHandles;
h.dev = nullptr;
h.context = nullptr;
QScopedPointer<QRhi> adoptingRhi(QRhi::create(QRhi::D3D11, &initParams.d3d, QRhi::Flags(), &h));
QVERIFY(adoptingRhi);
const QRhiD3D11NativeHandles *newNativeHandles = static_cast<const QRhiD3D11NativeHandles *>(adoptingRhi->nativeHandles());
QVERIFY(newNativeHandles->dev != nativeHandles->dev);
QVERIFY(newNativeHandles->context != nativeHandles->context);
QCOMPARE(newNativeHandles->featureLevel, nativeHandles->featureLevel);
QCOMPARE(newNativeHandles->adapterLuidLow, nativeHandles->adapterLuidLow);
QCOMPARE(newNativeHandles->adapterLuidHigh, nativeHandles->adapterLuidHigh);
}
#else
QSKIP("Skipping D3D11-specific test");
#endif
}
void tst_QRhi::nativeHandlesImportOpenGL()
{
#ifdef TST_GL
QRhiGles2NativeHandles h;
QScopedPointer<QOpenGLContext> ctx(new QOpenGLContext);
ctx->setFormat(QRhiGles2InitParams::adjustedFormat());
if (!ctx->create())
QSKIP("No OpenGL context, skipping OpenGL-specific test");
h.context = ctx.data();
QScopedPointer<QRhi> rhi(QRhi::create(QRhi::OpenGLES2, &initParams.gl, QRhi::Flags(), &h));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing OpenGL native handle import");
const QRhiGles2NativeHandles *actualNativeHandles = static_cast<const QRhiGles2NativeHandles *>(rhi->nativeHandles());
QCOMPARE(actualNativeHandles->context, ctx.data());
rhi->makeThreadLocalNativeContextCurrent();
QCOMPARE(QOpenGLContext::currentContext(), ctx.data());
#else
QSKIP("Skipping OpenGL-specific test");
#endif
}
void tst_QRhi::nativeTexture_data()
{
rhiTestData();
}
void tst_QRhi::nativeTexture()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing native texture");
QScopedPointer<QRhiTexture> tex(rhi->newTexture(QRhiTexture::RGBA8, QSize(512, 256)));
QVERIFY(tex->create());
const QRhiTexture::NativeTexture nativeTex = tex->nativeTexture();
switch (impl) {
case QRhi::Null:
break;
#ifdef TST_VK
case QRhi::Vulkan:
{
auto image = VkImage(nativeTex.object);
QVERIFY(image);
QVERIFY(nativeTex.layout >= 1); // VK_IMAGE_LAYOUT_GENERAL
QVERIFY(nativeTex.layout <= 8); // VK_IMAGE_LAYOUT_PREINITIALIZED
}
break;
#endif
#ifdef TST_GL
case QRhi::OpenGLES2:
{
auto textureId = uint(nativeTex.object);
QVERIFY(textureId);
}
break;
#endif
#ifdef TST_D3D11
case QRhi::D3D11:
{
auto *texture = reinterpret_cast<void *>(nativeTex.object);
QVERIFY(texture);
}
break;
#endif
#ifdef TST_MTL
case QRhi::Metal:
{
auto texture = (void *)nativeTex.object;
QVERIFY(texture);
}
break;
#endif
default:
Q_ASSERT(false);
}
}
void tst_QRhi::nativeBuffer_data()
{
rhiTestData();
}
void tst_QRhi::nativeBuffer()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing native buffer query");
const QRhiBuffer::Type types[3] = { QRhiBuffer::Immutable, QRhiBuffer::Static, QRhiBuffer::Dynamic };
const QRhiBuffer::UsageFlags usages[3] = { QRhiBuffer::VertexBuffer, QRhiBuffer::IndexBuffer, QRhiBuffer::UniformBuffer };
for (int typeUsageIdx = 0; typeUsageIdx < 3; ++typeUsageIdx) {
QScopedPointer<QRhiBuffer> buf(rhi->newBuffer(types[typeUsageIdx], usages[typeUsageIdx], 256));
QVERIFY(buf->create());
const QRhiBuffer::NativeBuffer nativeBuf = buf->nativeBuffer();
QVERIFY(nativeBuf.slotCount <= rhi->resourceLimit(QRhi::FramesInFlight));
switch (impl) {
case QRhi::Null:
break;
#ifdef TST_VK
case QRhi::Vulkan:
{
QVERIFY(nativeBuf.slotCount >= 1); // always backed by native buffers
for (int i = 0; i < nativeBuf.slotCount; ++i) {
auto *buffer = static_cast<const VkBuffer *>(nativeBuf.objects[i]);
QVERIFY(buffer);
QVERIFY(*buffer);
}
}
break;
#endif
#ifdef TST_GL
case QRhi::OpenGLES2:
{
QVERIFY(nativeBuf.slotCount >= 0); // UniformBuffers are not backed by native buffers, so 0 is perfectly valid
for (int i = 0; i < nativeBuf.slotCount; ++i) {
auto *bufferId = static_cast<const uint *>(nativeBuf.objects[i]);
QVERIFY(bufferId);
QVERIFY(*bufferId);
}
}
break;
#endif
#ifdef TST_D3D11
case QRhi::D3D11:
{
QVERIFY(nativeBuf.slotCount >= 1); // always backed by native buffers
for (int i = 0; i < nativeBuf.slotCount; ++i) {
auto *buffer = static_cast<void * const *>(nativeBuf.objects[i]);
QVERIFY(buffer);
QVERIFY(*buffer);
}
}
break;
#endif
#ifdef TST_MTL
case QRhi::Metal:
{
QVERIFY(nativeBuf.slotCount >= 1); // always backed by native buffers
for (int i = 0; i < nativeBuf.slotCount; ++i) {
void * const * buffer = (void * const *) nativeBuf.objects[i];
QVERIFY(buffer);
QVERIFY(*buffer);
}
}
break;
#endif
default:
Q_ASSERT(false);
}
}
}
static bool submitResourceUpdates(QRhi *rhi, QRhiResourceUpdateBatch *batch)
{
QRhiCommandBuffer *cb = nullptr;
QRhi::FrameOpResult result = rhi->beginOffscreenFrame(&cb);
if (result != QRhi::FrameOpSuccess) {
qWarning("beginOffscreenFrame returned %d", result);
return false;
}
if (!cb) {
qWarning("No command buffer from beginOffscreenFrame");
return false;
}
cb->resourceUpdate(batch);
rhi->endOffscreenFrame();
return true;
}
void tst_QRhi::resourceUpdateBatchBuffer_data()
{
rhiTestData();
}
void tst_QRhi::resourceUpdateBatchBuffer()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing buffer resource updates");
const int bufferSize = 23;
const QByteArray a(bufferSize, 'A');
const QByteArray b(bufferSize, 'B');
// dynamic buffer, updates, readback
{
QScopedPointer<QRhiBuffer> dynamicBuffer(rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, bufferSize));
QVERIFY(dynamicBuffer->create());
QRhiResourceUpdateBatch *batch = rhi->nextResourceUpdateBatch();
QVERIFY(batch);
batch->updateDynamicBuffer(dynamicBuffer.data(), 10, bufferSize - 10, a.constData());
batch->updateDynamicBuffer(dynamicBuffer.data(), 0, 12, b.constData());
QRhiBufferReadbackResult readResult;
bool readCompleted = false;
readResult.completed = [&readCompleted] { readCompleted = true; };
batch->readBackBuffer(dynamicBuffer.data(), 5, 10, &readResult);
QVERIFY(submitResourceUpdates(rhi.data(), batch));
// Offscreen frames are synchronous, so the readback must have
// completed at this point. With swapchain frames this would not be the
// case.
QVERIFY(readCompleted);
QVERIFY(readResult.data.size() == 10);
QCOMPARE(readResult.data.left(7), QByteArrayLiteral("BBBBBBB"));
QCOMPARE(readResult.data.mid(7), QByteArrayLiteral("AAA"));
}
// static buffer, updates, readback
{
QScopedPointer<QRhiBuffer> dynamicBuffer(rhi->newBuffer(QRhiBuffer::Static, QRhiBuffer::VertexBuffer, bufferSize));
QVERIFY(dynamicBuffer->create());
QRhiResourceUpdateBatch *batch = rhi->nextResourceUpdateBatch();
QVERIFY(batch);
batch->uploadStaticBuffer(dynamicBuffer.data(), 10, bufferSize - 10, a.constData());
batch->uploadStaticBuffer(dynamicBuffer.data(), 0, 12, b.constData());
QRhiBufferReadbackResult readResult;
bool readCompleted = false;
readResult.completed = [&readCompleted] { readCompleted = true; };
if (rhi->isFeatureSupported(QRhi::ReadBackNonUniformBuffer))
batch->readBackBuffer(dynamicBuffer.data(), 5, 10, &readResult);
QVERIFY(submitResourceUpdates(rhi.data(), batch));
if (rhi->isFeatureSupported(QRhi::ReadBackNonUniformBuffer)) {
QVERIFY(readCompleted);
QVERIFY(readResult.data.size() == 10);
QCOMPARE(readResult.data.left(7), QByteArrayLiteral("BBBBBBB"));
QCOMPARE(readResult.data.mid(7), QByteArrayLiteral("AAA"));
} else {
qDebug("Skipping verifying buffer contents because readback is not supported");
}
}
}
inline bool imageRGBAEquals(const QImage &a, const QImage &b)
{
const int maxFuzz = 1;
if (a.size() != b.size())
return false;
const QImage image0 = a.convertToFormat(QImage::Format_RGBA8888_Premultiplied);
const QImage image1 = b.convertToFormat(QImage::Format_RGBA8888_Premultiplied);
const int width = image0.width();
const int height = image0.height();
for (int y = 0; y < height; ++y) {
const quint32 *p0 = reinterpret_cast<const quint32 *>(image0.constScanLine(y));
const quint32 *p1 = reinterpret_cast<const quint32 *>(image1.constScanLine(y));
int x = width - 1;
while (x-- >= 0) {
const QRgb c0(*p0++);
const QRgb c1(*p1++);
const int red = qAbs(qRed(c0) - qRed(c1));
const int green = qAbs(qGreen(c0) - qGreen(c1));
const int blue = qAbs(qBlue(c0) - qBlue(c1));
const int alpha = qAbs(qAlpha(c0) - qAlpha(c1));
if (red > maxFuzz || green > maxFuzz || blue > maxFuzz || alpha > maxFuzz)
return false;
}
}
return true;
}
void tst_QRhi::resourceUpdateBatchRGBATextureUpload_data()
{
rhiTestData();
}
void tst_QRhi::resourceUpdateBatchRGBATextureUpload()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing texture resource updates");
QImage image(234, 123, QImage::Format_RGBA8888_Premultiplied);
image.fill(Qt::red);
QPainter painter;
const QPoint greenRectPos(35, 50);
const QSize greenRectSize(100, 50);
painter.begin(&image);
painter.fillRect(QRect(greenRectPos, greenRectSize), Qt::green);
painter.end();
// simple image upload; uploading and reading back RGBA8 is supported by the Null backend even
{
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, image.size(),
1, QRhiTexture::UsedAsTransferSource));
QVERIFY(texture->create());
QRhiResourceUpdateBatch *batch = rhi->nextResourceUpdateBatch();
batch->uploadTexture(texture.data(), image);
QRhiReadbackResult readResult;
bool readCompleted = false;
readResult.completed = [&readCompleted] { readCompleted = true; };
batch->readBackTexture(texture.data(), &readResult);
QVERIFY(submitResourceUpdates(rhi.data(), batch));
// like with buffers, the readback is now complete due to endOffscreenFrame()
QVERIFY(readCompleted);
QCOMPARE(readResult.format, QRhiTexture::RGBA8);
QCOMPARE(readResult.pixelSize, image.size());
QImage wrapperImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
image.format());
QVERIFY(imageRGBAEquals(image, wrapperImage));
}
// the same with raw data
{
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, image.size(),
1, QRhiTexture::UsedAsTransferSource));
QVERIFY(texture->create());
QRhiResourceUpdateBatch *batch = rhi->nextResourceUpdateBatch();
QRhiTextureUploadEntry upload(0, 0, { image.constBits(), int(image.sizeInBytes()) });
QRhiTextureUploadDescription uploadDesc(upload);
batch->uploadTexture(texture.data(), uploadDesc);
QRhiReadbackResult readResult;
bool readCompleted = false;
readResult.completed = [&readCompleted] { readCompleted = true; };
batch->readBackTexture(texture.data(), &readResult);
QVERIFY(submitResourceUpdates(rhi.data(), batch));
QVERIFY(readCompleted);
QCOMPARE(readResult.format, QRhiTexture::RGBA8);
QCOMPARE(readResult.pixelSize, image.size());
QImage wrapperImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
image.format());
QVERIFY(imageRGBAEquals(image, wrapperImage));
}
// partial image upload at a non-zero destination position
{
const QSize copySize(30, 40);
const int gap = 10;
const QSize fullSize(copySize.width() + gap, copySize.height() + gap);
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, fullSize,
1, QRhiTexture::UsedAsTransferSource));
QVERIFY(texture->create());
QRhiResourceUpdateBatch *batch = rhi->nextResourceUpdateBatch();
QImage clearImage(fullSize, image.format());
clearImage.fill(Qt::black);
batch->uploadTexture(texture.data(), clearImage);
// copy green pixels of copySize to (gap, gap), leaving a black bar of
// gap pixels on the left and top
QRhiTextureSubresourceUploadDescription desc;
desc.setImage(image);
desc.setSourceSize(copySize);
desc.setDestinationTopLeft(QPoint(gap, gap));
desc.setSourceTopLeft(greenRectPos);
batch->uploadTexture(texture.data(), QRhiTextureUploadDescription({ 0, 0, desc }));
QRhiReadbackResult readResult;
bool readCompleted = false;
readResult.completed = [&readCompleted] { readCompleted = true; };
batch->readBackTexture(texture.data(), &readResult);
QVERIFY(submitResourceUpdates(rhi.data(), batch));
QVERIFY(readCompleted);
QCOMPARE(readResult.format, QRhiTexture::RGBA8);
QCOMPARE(readResult.pixelSize, clearImage.size());
QImage wrapperImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
image.format());
QVERIFY(!imageRGBAEquals(clearImage, wrapperImage));
QImage expectedImage = clearImage;
QPainter painter(&expectedImage);
painter.fillRect(QRect(QPoint(gap, gap), QSize(copySize)), Qt::green);
painter.end();
QVERIFY(imageRGBAEquals(expectedImage, wrapperImage));
}
// the same (partial upload) with raw data as source
{
const QSize copySize(30, 40);
const int gap = 10;
const QSize fullSize(copySize.width() + gap, copySize.height() + gap);
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, fullSize,
1, QRhiTexture::UsedAsTransferSource));
QVERIFY(texture->create());
QRhiResourceUpdateBatch *batch = rhi->nextResourceUpdateBatch();
QImage clearImage(fullSize, image.format());
clearImage.fill(Qt::black);
batch->uploadTexture(texture.data(), clearImage);
// SourceTopLeft is not supported for non-QImage-based uploads.
const QImage im = image.copy(QRect(greenRectPos, copySize));
QRhiTextureSubresourceUploadDescription desc;
desc.setData(QByteArray::fromRawData(reinterpret_cast<const char *>(im.constBits()),
int(im.sizeInBytes())));
desc.setSourceSize(copySize);
desc.setDestinationTopLeft(QPoint(gap, gap));
batch->uploadTexture(texture.data(), QRhiTextureUploadDescription({ 0, 0, desc }));
QRhiReadbackResult readResult;
bool readCompleted = false;
readResult.completed = [&readCompleted] { readCompleted = true; };
batch->readBackTexture(texture.data(), &readResult);
QVERIFY(submitResourceUpdates(rhi.data(), batch));
QVERIFY(readCompleted);
QCOMPARE(readResult.format, QRhiTexture::RGBA8);
QCOMPARE(readResult.pixelSize, clearImage.size());
QImage wrapperImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
image.format());
QVERIFY(!imageRGBAEquals(clearImage, wrapperImage));
QImage expectedImage = clearImage;
QPainter painter(&expectedImage);
painter.fillRect(QRect(QPoint(gap, gap), QSize(copySize)), Qt::green);
painter.end();
QVERIFY(imageRGBAEquals(expectedImage, wrapperImage));
}
// now a QImage from an actual file
{
QImage inputImage;
inputImage.load(QLatin1String(":/data/qt256.png"));
QVERIFY(!inputImage.isNull());
inputImage = std::move(inputImage).convertToFormat(image.format());
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, inputImage.size(),
1, QRhiTexture::UsedAsTransferSource));
QVERIFY(texture->create());
QRhiResourceUpdateBatch *batch = rhi->nextResourceUpdateBatch();
batch->uploadTexture(texture.data(), inputImage);
QRhiReadbackResult readResult;
bool readCompleted = false;
readResult.completed = [&readCompleted] { readCompleted = true; };
batch->readBackTexture(texture.data(), &readResult);
QVERIFY(submitResourceUpdates(rhi.data(), batch));
QVERIFY(readCompleted);
QImage wrapperImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
inputImage.format());
QVERIFY(imageRGBAEquals(inputImage, wrapperImage));
}
}
void tst_QRhi::resourceUpdateBatchRGBATextureCopy_data()
{
rhiTestData();
}
void tst_QRhi::resourceUpdateBatchRGBATextureCopy()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing texture resource updates");
QImage red(256, 256, QImage::Format_RGBA8888_Premultiplied);
red.fill(Qt::red);
QImage green(35, 73, red.format());
green.fill(Qt::green);
QRhiResourceUpdateBatch *batch = rhi->nextResourceUpdateBatch();
QScopedPointer<QRhiTexture> redTexture(rhi->newTexture(QRhiTexture::RGBA8, red.size(),
1, QRhiTexture::UsedAsTransferSource));
QVERIFY(redTexture->create());
batch->uploadTexture(redTexture.data(), red);
QScopedPointer<QRhiTexture> greenTexture(rhi->newTexture(QRhiTexture::RGBA8, green.size(),
1, QRhiTexture::UsedAsTransferSource));
QVERIFY(greenTexture->create());
batch->uploadTexture(greenTexture.data(), green);
// 1. simple copy red -> texture; 2. subimage copy green -> texture; 3. partial subimage copy green -> texture
{
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, red.size(),
1, QRhiTexture::UsedAsTransferSource));
QVERIFY(texture->create());
// 1.
batch->copyTexture(texture.data(), redTexture.data());
QRhiReadbackResult readResult;
bool readCompleted = false;
readResult.completed = [&readCompleted] { readCompleted = true; };
batch->readBackTexture(texture.data(), &readResult);
QVERIFY(submitResourceUpdates(rhi.data(), batch));
QVERIFY(readCompleted);
QImage wrapperImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
red.format());
QVERIFY(imageRGBAEquals(red, wrapperImage));
batch = rhi->nextResourceUpdateBatch();
readCompleted = false;
// 2.
QRhiTextureCopyDescription copyDesc;
copyDesc.setDestinationTopLeft(QPoint(15, 23));
batch->copyTexture(texture.data(), greenTexture.data(), copyDesc);
batch->readBackTexture(texture.data(), &readResult);
QVERIFY(submitResourceUpdates(rhi.data(), batch));
QVERIFY(readCompleted);
wrapperImage = QImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
red.format());
QImage expectedImage = red;
QPainter painter(&expectedImage);
painter.drawImage(copyDesc.destinationTopLeft(), green);
painter.end();
QVERIFY(imageRGBAEquals(expectedImage, wrapperImage));
batch = rhi->nextResourceUpdateBatch();
readCompleted = false;
// 3.
copyDesc.setDestinationTopLeft(QPoint(125, 89));
copyDesc.setSourceTopLeft(QPoint(5, 5));
copyDesc.setPixelSize(QSize(26, 45));
batch->copyTexture(texture.data(), greenTexture.data(), copyDesc);
batch->readBackTexture(texture.data(), &readResult);
QVERIFY(submitResourceUpdates(rhi.data(), batch));
QVERIFY(readCompleted);
wrapperImage = QImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
red.format());
painter.begin(&expectedImage);
painter.drawImage(copyDesc.destinationTopLeft(), green,
QRect(copyDesc.sourceTopLeft(), copyDesc.pixelSize()));
painter.end();
QVERIFY(imageRGBAEquals(expectedImage, wrapperImage));
}
}
void tst_QRhi::resourceUpdateBatchRGBATextureMip_data()
{
rhiTestData();
}
void tst_QRhi::resourceUpdateBatchRGBATextureMip()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing texture resource updates");
QImage red(512, 512, QImage::Format_RGBA8888_Premultiplied);
red.fill(Qt::red);
const QRhiTexture::Flags textureFlags =
QRhiTexture::UsedAsTransferSource
| QRhiTexture::MipMapped
| QRhiTexture::UsedWithGenerateMips;
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, red.size(), 1, textureFlags));
QVERIFY(texture->create());
QRhiResourceUpdateBatch *batch = rhi->nextResourceUpdateBatch();
batch->uploadTexture(texture.data(), red);
batch->generateMips(texture.data());
QVERIFY(submitResourceUpdates(rhi.data(), batch));
const int levelCount = rhi->mipLevelsForSize(red.size());
QCOMPARE(levelCount, 10);
for (int level = 0; level < levelCount; ++level) {
batch = rhi->nextResourceUpdateBatch();
QRhiReadbackDescription readDesc(texture.data());
readDesc.setLevel(level);
QRhiReadbackResult readResult;
bool readCompleted = false;
readResult.completed = [&readCompleted] { readCompleted = true; };
batch->readBackTexture(readDesc, &readResult);
QVERIFY(submitResourceUpdates(rhi.data(), batch));
QVERIFY(readCompleted);
const QSize expectedSize = rhi->sizeForMipLevel(level, texture->pixelSize());
QCOMPARE(readResult.pixelSize, expectedSize);
QImage wrapperImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
red.format());
QImage expectedImage;
if (level == 0 || rhi->isFeatureSupported(QRhi::ReadBackNonBaseMipLevel)) {
// Compare to a scaled version; we can do this safely only because we
// only have plain red pixels in the source image.
expectedImage = red.scaled(expectedSize);
} else {
qDebug("Expecting all-zero image for level %d because reading back a level other than 0 is not supported", level);
expectedImage = QImage(readResult.pixelSize, red.format());
expectedImage.fill(0);
}
QVERIFY(imageRGBAEquals(expectedImage, wrapperImage));
}
}
void tst_QRhi::resourceUpdateBatchTextureRawDataStride_data()
{
rhiTestData();
}
void tst_QRhi::resourceUpdateBatchTextureRawDataStride()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing texture resource updates");
const int WIDTH = 150;
const int DATA_WIDTH = 180;
const int HEIGHT = 50;
QByteArray image;
image.resize(DATA_WIDTH * HEIGHT * 4);
for (int y = 0; y < HEIGHT; ++y) {
char *p = image.data() + y * DATA_WIDTH * 4;
memset(p, y, DATA_WIDTH * 4);
}
{
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, QSize(WIDTH, HEIGHT),
1, QRhiTexture::UsedAsTransferSource));
QVERIFY(texture->create());
QRhiResourceUpdateBatch *batch = rhi->nextResourceUpdateBatch();
QRhiTextureSubresourceUploadDescription subresDesc(image.constData(), image.size());
subresDesc.setDataStride(DATA_WIDTH * 4);
QRhiTextureUploadEntry upload(0, 0, subresDesc);
QRhiTextureUploadDescription uploadDesc(upload);
batch->uploadTexture(texture.data(), uploadDesc);
QRhiReadbackResult readResult;
bool readCompleted = false;
readResult.completed = [&readCompleted] { readCompleted = true; };
batch->readBackTexture(texture.data(), &readResult);
QVERIFY(submitResourceUpdates(rhi.data(), batch));
QVERIFY(readCompleted);
QCOMPARE(readResult.format, QRhiTexture::RGBA8);
QCOMPARE(readResult.pixelSize, QSize(WIDTH, HEIGHT));
QImage wrapperImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
QImage::Format_RGBA8888_Premultiplied);
// wrap the original data, note the bytesPerLine argument
QImage originalWrapperImage(reinterpret_cast<const uchar *>(image.constData()),
WIDTH, HEIGHT, DATA_WIDTH * 4,
QImage::Format_RGBA8888_Premultiplied);
QVERIFY(imageRGBAEquals(wrapperImage, originalWrapperImage));
}
}
static QShader loadShader(const char *name)
{
QFile f(QString::fromUtf8(name));
if (f.open(QIODevice::ReadOnly)) {
const QByteArray contents = f.readAll();
return QShader::fromSerialized(contents);
}
return QShader();
}
void tst_QRhi::invalidPipeline_data()
{
rhiTestData();
}
void tst_QRhi::invalidPipeline()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing empty shader");
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, QSize(256, 256), 1, QRhiTexture::RenderTarget));
QVERIFY(texture->create());
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ texture.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QRhiCommandBuffer *cb = nullptr;
QVERIFY(rhi->beginOffscreenFrame(&cb) == QRhi::FrameOpSuccess);
QVERIFY(cb);
QScopedPointer<QRhiShaderResourceBindings> srb(rhi->newShaderResourceBindings());
QVERIFY(srb->create());
QRhiVertexInputLayout inputLayout;
inputLayout.setBindings({ { 2 * sizeof(float) } });
inputLayout.setAttributes({ { 0, 0, QRhiVertexInputAttribute::Float2, 0 } });
// no stages
QScopedPointer<QRhiGraphicsPipeline> pipeline(rhi->newGraphicsPipeline());
pipeline->setVertexInputLayout(inputLayout);
pipeline->setShaderResourceBindings(srb.data());
pipeline->setRenderPassDescriptor(rpDesc.data());
QVERIFY(!pipeline->create());
QShader vs;
QShader fs;
// no shaders in the stages
pipeline.reset(rhi->newGraphicsPipeline());
pipeline->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
pipeline->setVertexInputLayout(inputLayout);
pipeline->setShaderResourceBindings(srb.data());
pipeline->setRenderPassDescriptor(rpDesc.data());
QVERIFY(!pipeline->create());
vs = loadShader(":/data/simple.vert.qsb");
QVERIFY(vs.isValid());
fs = loadShader(":/data/simple.frag.qsb");
QVERIFY(fs.isValid());
// no vertex stage
pipeline.reset(rhi->newGraphicsPipeline());
pipeline->setShaderStages({ { QRhiShaderStage::Fragment, fs } });
pipeline->setVertexInputLayout(inputLayout);
pipeline->setShaderResourceBindings(srb.data());
pipeline->setRenderPassDescriptor(rpDesc.data());
QVERIFY(!pipeline->create());
// no renderpass descriptor
pipeline.reset(rhi->newGraphicsPipeline());
pipeline->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
pipeline->setVertexInputLayout(inputLayout);
pipeline->setShaderResourceBindings(srb.data());
QVERIFY(!pipeline->create());
// no shader resource bindings
pipeline.reset(rhi->newGraphicsPipeline());
pipeline->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
pipeline->setVertexInputLayout(inputLayout);
pipeline->setRenderPassDescriptor(rpDesc.data());
QVERIFY(!pipeline->create());
// correct
pipeline.reset(rhi->newGraphicsPipeline());
pipeline->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
pipeline->setVertexInputLayout(inputLayout);
pipeline->setRenderPassDescriptor(rpDesc.data());
pipeline->setShaderResourceBindings(srb.data());
QVERIFY(pipeline->create());
}
void tst_QRhi::renderToTextureSimple_data()
{
rhiTestData();
}
void tst_QRhi::renderToTextureSimple()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing rendering");
const QSize outputSize(1920, 1080);
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, outputSize, 1,
QRhiTexture::RenderTarget | QRhiTexture::UsedAsTransferSource));
QVERIFY(texture->create());
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ texture.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QRhiCommandBuffer *cb = nullptr;
QVERIFY(rhi->beginOffscreenFrame(&cb) == QRhi::FrameOpSuccess);
QVERIFY(cb);
QRhiResourceUpdateBatch *updates = rhi->nextResourceUpdateBatch();
static const float vertices[] = {
-1.0f, -1.0f,
1.0f, -1.0f,
0.0f, 1.0f
};
QScopedPointer<QRhiBuffer> vbuf(rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(vertices)));
QVERIFY(vbuf->create());
updates->uploadStaticBuffer(vbuf.data(), vertices);
QScopedPointer<QRhiShaderResourceBindings> srb(rhi->newShaderResourceBindings());
QVERIFY(srb->create());
QScopedPointer<QRhiGraphicsPipeline> pipeline(rhi->newGraphicsPipeline());
QShader vs = loadShader(":/data/simple.vert.qsb");
QVERIFY(vs.isValid());
QShader fs = loadShader(":/data/simple.frag.qsb");
QVERIFY(fs.isValid());
pipeline->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
QRhiVertexInputLayout inputLayout;
inputLayout.setBindings({ { 2 * sizeof(float) } });
inputLayout.setAttributes({ { 0, 0, QRhiVertexInputAttribute::Float2, 0 } });
pipeline->setVertexInputLayout(inputLayout);
pipeline->setShaderResourceBindings(srb.data());
pipeline->setRenderPassDescriptor(rpDesc.data());
QVERIFY(pipeline->create());
cb->beginPass(rt.data(), Qt::blue, { 1.0f, 0 }, updates);
cb->setGraphicsPipeline(pipeline.data());
cb->setViewport({ 0, 0, float(outputSize.width()), float(outputSize.height()) });
QRhiCommandBuffer::VertexInput vbindings(vbuf.data(), 0);
cb->setVertexInput(0, 1, &vbindings);
cb->draw(3);
QRhiReadbackResult readResult;
QImage result;
readResult.completed = [&readResult, &result] {
result = QImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
QImage::Format_RGBA8888_Premultiplied); // non-owning, no copy needed because readResult outlives result
};
QRhiResourceUpdateBatch *readbackBatch = rhi->nextResourceUpdateBatch();
readbackBatch->readBackTexture({ texture.data() }, &readResult);
cb->endPass(readbackBatch);
rhi->endOffscreenFrame();
// Offscreen frames are synchronous, so the readback is guaranteed to
// complete at this point. This would not be the case with swapchain-based
// frames.
QCOMPARE(result.size(), texture->pixelSize());
if (impl == QRhi::Null)
return;
// Now we have a red rectangle on blue background.
const int y = 100;
const quint32 *p = reinterpret_cast<const quint32 *>(result.constScanLine(y));
int x = result.width() - 1;
int redCount = 0;
int blueCount = 0;
const int maxFuzz = 1;
while (x-- >= 0) {
const QRgb c(*p++);
if (qRed(c) >= (255 - maxFuzz) && qGreen(c) == 0 && qBlue(c) == 0)
++redCount;
else if (qRed(c) == 0 && qGreen(c) == 0 && qBlue(c) >= (255 - maxFuzz))
++blueCount;
else
QFAIL("Encountered a pixel that is neither red or blue");
}
QCOMPARE(redCount + blueCount, texture->pixelSize().width());
// The triangle is "pointing up" in the resulting image with OpenGL
// (because Y is up both in normalized device coordinates and in images)
// and Vulkan (because Y is down in both and the vertex data was specified
// with Y up in mind), but "pointing down" with D3D (because Y is up in NDC
// but down in images).
if (rhi->isYUpInFramebuffer() == rhi->isYUpInNDC())
QVERIFY(redCount < blueCount);
else
QVERIFY(redCount > blueCount);
}
void tst_QRhi::renderToTextureMip_data()
{
rhiTestData();
}
void tst_QRhi::renderToTextureMip()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing rendering");
if (!rhi->isFeatureSupported(QRhi::RenderToNonBaseMipLevel))
QSKIP("Rendering to non-base mip levels is not supported on this platform, skipping test");
const QSize baseLevelSize(1024, 1024);
const int LEVEL = 3; // render into mip #3 (128x128)
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, baseLevelSize, 1,
QRhiTexture::RenderTarget
| QRhiTexture::UsedAsTransferSource
| QRhiTexture::MipMapped));
QVERIFY(texture->create());
QRhiColorAttachment colorAtt(texture.data());
colorAtt.setLevel(LEVEL);
QRhiTextureRenderTargetDescription rtDesc(colorAtt);
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget(rtDesc));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QCOMPARE(rt->pixelSize(), rhi->sizeForMipLevel(LEVEL, baseLevelSize));
const QSize mipSize(baseLevelSize.width() >> LEVEL, baseLevelSize.height() >> LEVEL);
QCOMPARE(rt->pixelSize(), mipSize);
QRhiCommandBuffer *cb = nullptr;
QVERIFY(rhi->beginOffscreenFrame(&cb) == QRhi::FrameOpSuccess);
QVERIFY(cb);
QRhiResourceUpdateBatch *updates = rhi->nextResourceUpdateBatch();
static const float vertices[] = {
-1.0f, -1.0f,
1.0f, -1.0f,
0.0f, 1.0f
};
QScopedPointer<QRhiBuffer> vbuf(rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(vertices)));
QVERIFY(vbuf->create());
updates->uploadStaticBuffer(vbuf.data(), vertices);
QScopedPointer<QRhiShaderResourceBindings> srb(rhi->newShaderResourceBindings());
QVERIFY(srb->create());
QScopedPointer<QRhiGraphicsPipeline> pipeline(rhi->newGraphicsPipeline());
QShader vs = loadShader(":/data/simple.vert.qsb");
QVERIFY(vs.isValid());
QShader fs = loadShader(":/data/simple.frag.qsb");
QVERIFY(fs.isValid());
pipeline->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
QRhiVertexInputLayout inputLayout;
inputLayout.setBindings({ { 2 * sizeof(float) } });
inputLayout.setAttributes({ { 0, 0, QRhiVertexInputAttribute::Float2, 0 } });
pipeline->setVertexInputLayout(inputLayout);
pipeline->setShaderResourceBindings(srb.data());
pipeline->setRenderPassDescriptor(rpDesc.data());
QVERIFY(pipeline->create());
cb->beginPass(rt.data(), Qt::blue, { 1.0f, 0 }, updates);
cb->setGraphicsPipeline(pipeline.data());
cb->setViewport({ 0, 0, float(rt->pixelSize().width()), float(rt->pixelSize().height()) });
QRhiCommandBuffer::VertexInput vbindings(vbuf.data(), 0);
cb->setVertexInput(0, 1, &vbindings);
cb->draw(3);
QRhiReadbackResult readResult;
QImage result;
readResult.completed = [&readResult, &result] {
result = QImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
QImage::Format_RGBA8888_Premultiplied);
};
QRhiResourceUpdateBatch *readbackBatch = rhi->nextResourceUpdateBatch();
QRhiReadbackDescription readbackDescription(texture.data());
readbackDescription.setLevel(LEVEL);
readbackBatch->readBackTexture(readbackDescription, &readResult);
cb->endPass(readbackBatch);
rhi->endOffscreenFrame();
if (!rhi->isFeatureSupported(QRhi::ReadBackNonBaseMipLevel))
QSKIP("Reading back non-base mip levels is not supported on this platform, skipping readback");
QCOMPARE(result.size(), mipSize);
if (impl == QRhi::Null)
return;
const int y = 100;
const quint32 *p = reinterpret_cast<const quint32 *>(result.constScanLine(y));
int x = result.width() - 1;
int redCount = 0;
int blueCount = 0;
const int maxFuzz = 1;
while (x-- >= 0) {
const QRgb c(*p++);
if (qRed(c) >= (255 - maxFuzz) && qGreen(c) == 0 && qBlue(c) == 0)
++redCount;
else if (qRed(c) == 0 && qGreen(c) == 0 && qBlue(c) >= (255 - maxFuzz))
++blueCount;
else
QFAIL("Encountered a pixel that is neither red or blue");
}
QCOMPARE(redCount + blueCount, mipSize.width());
if (rhi->isYUpInFramebuffer() == rhi->isYUpInNDC())
QVERIFY(redCount > blueCount); // 100, 28
else
QVERIFY(redCount < blueCount); // 28, 100
}
void tst_QRhi::renderToTextureCubemapFace_data()
{
rhiTestData();
}
void tst_QRhi::renderToTextureCubemapFace()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing rendering");
const QSize outputSize(512, 512); // width must be same as height
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, outputSize, 1,
QRhiTexture::RenderTarget
| QRhiTexture::UsedAsTransferSource
| QRhiTexture::CubeMap)); // will be a cubemap, so 6 layers
QVERIFY(texture->create());
const int LAYER = 1; // render into the layer for face -X
const int BAD_LAYER = 2; // +Y
QRhiColorAttachment colorAtt(texture.data());
colorAtt.setLayer(LAYER);
QRhiTextureRenderTargetDescription rtDesc(colorAtt);
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget(rtDesc));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QCOMPARE(rt->pixelSize(), texture->pixelSize());
QCOMPARE(rt->pixelSize(), outputSize);
QRhiCommandBuffer *cb = nullptr;
QVERIFY(rhi->beginOffscreenFrame(&cb) == QRhi::FrameOpSuccess);
QVERIFY(cb);
QRhiResourceUpdateBatch *updates = rhi->nextResourceUpdateBatch();
static const float vertices[] = {
-1.0f, -1.0f,
1.0f, -1.0f,
0.0f, 1.0f
};
QScopedPointer<QRhiBuffer> vbuf(rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(vertices)));
QVERIFY(vbuf->create());
updates->uploadStaticBuffer(vbuf.data(), vertices);
QScopedPointer<QRhiShaderResourceBindings> srb(rhi->newShaderResourceBindings());
QVERIFY(srb->create());
QScopedPointer<QRhiGraphicsPipeline> pipeline(rhi->newGraphicsPipeline());
QShader vs = loadShader(":/data/simple.vert.qsb");
QVERIFY(vs.isValid());
QShader fs = loadShader(":/data/simple.frag.qsb");
QVERIFY(fs.isValid());
pipeline->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
QRhiVertexInputLayout inputLayout;
inputLayout.setBindings({ { 2 * sizeof(float) } });
inputLayout.setAttributes({ { 0, 0, QRhiVertexInputAttribute::Float2, 0 } });
pipeline->setVertexInputLayout(inputLayout);
pipeline->setShaderResourceBindings(srb.data());
pipeline->setRenderPassDescriptor(rpDesc.data());
QVERIFY(pipeline->create());
cb->beginPass(rt.data(), Qt::blue, { 1.0f, 0 }, updates);
cb->setGraphicsPipeline(pipeline.data());
cb->setViewport({ 0, 0, float(rt->pixelSize().width()), float(rt->pixelSize().height()) });
QRhiCommandBuffer::VertexInput vbindings(vbuf.data(), 0);
cb->setVertexInput(0, 1, &vbindings);
cb->draw(3);
QRhiReadbackResult readResult;
QImage result;
readResult.completed = [&readResult, &result] {
result = QImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
QImage::Format_RGBA8888_Premultiplied);
};
QRhiResourceUpdateBatch *readbackBatch = rhi->nextResourceUpdateBatch();
QRhiReadbackDescription readbackDescription(texture.data());
readbackDescription.setLayer(LAYER);
readbackBatch->readBackTexture(readbackDescription, &readResult);
// also read back a layer we did not render into
QRhiReadbackResult readResult2;
QImage result2;
readResult2.completed = [&readResult2, &result2] {
result2 = QImage(reinterpret_cast<const uchar *>(readResult2.data.constData()),
readResult2.pixelSize.width(), readResult2.pixelSize.height(),
QImage::Format_RGBA8888_Premultiplied);
};
QRhiReadbackDescription readbackDescription2(texture.data());
readbackDescription2.setLayer(BAD_LAYER);
readbackBatch->readBackTexture(readbackDescription2, &readResult2);
cb->endPass(readbackBatch);
rhi->endOffscreenFrame();
QCOMPARE(result.size(), outputSize);
QCOMPARE(result2.size(), outputSize);
if (impl == QRhi::Null)
return;
// just want to ensure that we did not read the same thing back twice, i.e.
// that the 'layer' parameter was not ignored
QVERIFY(result != result2);
const int y = 100;
const quint32 *p = reinterpret_cast<const quint32 *>(result.constScanLine(y));
int x = result.width() - 1;
int redCount = 0;
int blueCount = 0;
const int maxFuzz = 1;
while (x-- >= 0) {
const QRgb c(*p++);
if (qRed(c) >= (255 - maxFuzz) && qGreen(c) == 0 && qBlue(c) == 0)
++redCount;
else if (qRed(c) == 0 && qGreen(c) == 0 && qBlue(c) >= (255 - maxFuzz))
++blueCount;
else
QFAIL("Encountered a pixel that is neither red or blue");
}
QCOMPARE(redCount + blueCount, outputSize.width());
if (rhi->isYUpInFramebuffer() == rhi->isYUpInNDC())
QVERIFY(redCount < blueCount); // 100, 412
else
QVERIFY(redCount > blueCount); // 412, 100
}
static const float quadVerticesUvs[] = {
-1.0f, -1.0f, 0.0f, 0.0f,
1.0f, -1.0f, 1.0f, 0.0f,
-1.0f, 1.0f, 0.0f, 1.0f,
1.0f, 1.0f, 1.0f, 1.0f
};
void tst_QRhi::renderToTextureTexturedQuad_data()
{
rhiTestData();
}
void tst_QRhi::renderToTextureTexturedQuad()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing rendering");
QImage inputImage;
inputImage.load(QLatin1String(":/data/qt256.png"));
QVERIFY(!inputImage.isNull());
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, inputImage.size(), 1,
QRhiTexture::RenderTarget | QRhiTexture::UsedAsTransferSource));
QVERIFY(texture->create());
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ texture.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QRhiCommandBuffer *cb = nullptr;
QVERIFY(rhi->beginOffscreenFrame(&cb) == QRhi::FrameOpSuccess);
QVERIFY(cb);
QRhiResourceUpdateBatch *updates = rhi->nextResourceUpdateBatch();
QScopedPointer<QRhiBuffer> vbuf(rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(quadVerticesUvs)));
QVERIFY(vbuf->create());
updates->uploadStaticBuffer(vbuf.data(), quadVerticesUvs);
QScopedPointer<QRhiTexture> inputTexture(rhi->newTexture(QRhiTexture::RGBA8, inputImage.size()));
QVERIFY(inputTexture->create());
updates->uploadTexture(inputTexture.data(), inputImage);
QScopedPointer<QRhiSampler> sampler(rhi->newSampler(QRhiSampler::Nearest, QRhiSampler::Nearest, QRhiSampler::None,
QRhiSampler::ClampToEdge, QRhiSampler::ClampToEdge));
QVERIFY(sampler->create());
QScopedPointer<QRhiShaderResourceBindings> srb(rhi->newShaderResourceBindings());
srb->setBindings({
QRhiShaderResourceBinding::sampledTexture(0, QRhiShaderResourceBinding::FragmentStage, inputTexture.data(), sampler.data())
});
QVERIFY(srb->create());
QScopedPointer<QRhiGraphicsPipeline> pipeline(rhi->newGraphicsPipeline());
pipeline->setTopology(QRhiGraphicsPipeline::TriangleStrip);
QShader vs = loadShader(":/data/simpletextured.vert.qsb");
QVERIFY(vs.isValid());
QShader fs = loadShader(":/data/simpletextured.frag.qsb");
QVERIFY(fs.isValid());
pipeline->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
QRhiVertexInputLayout inputLayout;
inputLayout.setBindings({ { 4 * sizeof(float) } });
inputLayout.setAttributes({
{ 0, 0, QRhiVertexInputAttribute::Float2, 0 },
{ 0, 1, QRhiVertexInputAttribute::Float2, 2 * sizeof(float) }
});
pipeline->setVertexInputLayout(inputLayout);
pipeline->setShaderResourceBindings(srb.data());
pipeline->setRenderPassDescriptor(rpDesc.data());
QVERIFY(pipeline->create());
cb->beginPass(rt.data(), Qt::black, { 1.0f, 0 }, updates);
cb->setGraphicsPipeline(pipeline.data());
cb->setShaderResources();
cb->setViewport({ 0, 0, float(texture->pixelSize().width()), float(texture->pixelSize().height()) });
QRhiCommandBuffer::VertexInput vbindings(vbuf.data(), 0);
cb->setVertexInput(0, 1, &vbindings);
cb->draw(4);
QRhiReadbackResult readResult;
QImage result;
readResult.completed = [&readResult, &result] {
result = QImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
QImage::Format_RGBA8888_Premultiplied);
};
QRhiResourceUpdateBatch *readbackBatch = rhi->nextResourceUpdateBatch();
readbackBatch->readBackTexture({ texture.data() }, &readResult);
cb->endPass(readbackBatch);
rhi->endOffscreenFrame();
QVERIFY(!result.isNull());
if (impl == QRhi::Null)
return;
// Flip with D3D and Metal because these have Y down in images. Vulkan does
// not need this because there Y is down both in images and in NDC, which
// just happens to give correct results with our OpenGL-targeted vertex and
// UV data.
if (rhi->isYUpInFramebuffer() != rhi->isYUpInNDC())
result = std::move(result).mirrored();
// check a few points that are expected to match regardless of the implementation
QRgb white = qRgba(255, 255, 255, 255);
QCOMPARE(result.pixel(79, 77), white);
QCOMPARE(result.pixel(124, 81), white);
QCOMPARE(result.pixel(128, 149), white);
QCOMPARE(result.pixel(120, 189), white);
QCOMPARE(result.pixel(116, 185), white);
QRgb empty = qRgba(0, 0, 0, 0);
QCOMPARE(result.pixel(11, 45), empty);
QCOMPARE(result.pixel(246, 202), empty);
QCOMPARE(result.pixel(130, 18), empty);
QCOMPARE(result.pixel(4, 227), empty);
QVERIFY(qGreen(result.pixel(32, 52)) > 2 * qRed(result.pixel(32, 52)));
QVERIFY(qGreen(result.pixel(32, 52)) > 2 * qBlue(result.pixel(32, 52)));
QVERIFY(qGreen(result.pixel(214, 191)) > 2 * qRed(result.pixel(214, 191)));
QVERIFY(qGreen(result.pixel(214, 191)) > 2 * qBlue(result.pixel(214, 191)));
}
void tst_QRhi::renderToTextureArrayOfTexturedQuad_data()
{
rhiTestData();
}
void tst_QRhi::renderToTextureArrayOfTexturedQuad()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing rendering");
QImage inputImage;
inputImage.load(QLatin1String(":/data/qt256.png"));
QVERIFY(!inputImage.isNull());
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, inputImage.size(), 1,
QRhiTexture::RenderTarget | QRhiTexture::UsedAsTransferSource));
QVERIFY(texture->create());
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ texture.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QRhiCommandBuffer *cb = nullptr;
QVERIFY(rhi->beginOffscreenFrame(&cb) == QRhi::FrameOpSuccess);
QVERIFY(cb);
QRhiResourceUpdateBatch *updates = rhi->nextResourceUpdateBatch();
QScopedPointer<QRhiBuffer> vbuf(rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(quadVerticesUvs)));
QVERIFY(vbuf->create());
updates->uploadStaticBuffer(vbuf.data(), quadVerticesUvs);
// In this test we pass 3 textures (and samplers) to the fragment shader in
// form of an array of combined image samplers.
QScopedPointer<QRhiTexture> inputTexture(rhi->newTexture(QRhiTexture::RGBA8, inputImage.size()));
QVERIFY(inputTexture->create());
updates->uploadTexture(inputTexture.data(), inputImage);
QImage redImage(inputImage.size(), QImage::Format_RGBA8888);
redImage.fill(Qt::red);
QScopedPointer<QRhiTexture> redTexture(rhi->newTexture(QRhiTexture::RGBA8, inputImage.size()));
QVERIFY(redTexture->create());
updates->uploadTexture(redTexture.data(), redImage);
QImage greenImage(inputImage.size(), QImage::Format_RGBA8888);
greenImage.fill(Qt::green);
QScopedPointer<QRhiTexture> greenTexture(rhi->newTexture(QRhiTexture::RGBA8, inputImage.size()));
QVERIFY(greenTexture->create());
updates->uploadTexture(greenTexture.data(), greenImage);
QScopedPointer<QRhiSampler> sampler(rhi->newSampler(QRhiSampler::Nearest, QRhiSampler::Nearest, QRhiSampler::None,
QRhiSampler::ClampToEdge, QRhiSampler::ClampToEdge));
QVERIFY(sampler->create());
QScopedPointer<QRhiShaderResourceBindings> srb(rhi->newShaderResourceBindings());
QRhiShaderResourceBinding::TextureAndSampler texSamplers[3] = {
{ inputTexture.data(), sampler.data() },
{ redTexture.data(), sampler.data() },
{ greenTexture.data(), sampler.data() }
};
srb->setBindings({
QRhiShaderResourceBinding::sampledTextures(0, QRhiShaderResourceBinding::FragmentStage, 3, texSamplers)
});
QVERIFY(srb->create());
QScopedPointer<QRhiGraphicsPipeline> pipeline(rhi->newGraphicsPipeline());
pipeline->setTopology(QRhiGraphicsPipeline::TriangleStrip);
QShader vs = loadShader(":/data/simpletextured.vert.qsb");
QVERIFY(vs.isValid());
QShader fs = loadShader(":/data/simpletextured_array.frag.qsb");
QVERIFY(fs.isValid());
pipeline->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
QRhiVertexInputLayout inputLayout;
inputLayout.setBindings({ { 4 * sizeof(float) } });
inputLayout.setAttributes({
{ 0, 0, QRhiVertexInputAttribute::Float2, 0 },
{ 0, 1, QRhiVertexInputAttribute::Float2, 2 * sizeof(float) }
});
pipeline->setVertexInputLayout(inputLayout);
pipeline->setShaderResourceBindings(srb.data());
pipeline->setRenderPassDescriptor(rpDesc.data());
QVERIFY(pipeline->create());
cb->beginPass(rt.data(), Qt::black, { 1.0f, 0 }, updates);
cb->setGraphicsPipeline(pipeline.data());
cb->setShaderResources();
cb->setViewport({ 0, 0, float(texture->pixelSize().width()), float(texture->pixelSize().height()) });
QRhiCommandBuffer::VertexInput vbindings(vbuf.data(), 0);
cb->setVertexInput(0, 1, &vbindings);
cb->draw(4);
QRhiReadbackResult readResult;
QImage result;
readResult.completed = [&readResult, &result] {
result = QImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
QImage::Format_RGBA8888_Premultiplied);
};
QRhiResourceUpdateBatch *readbackBatch = rhi->nextResourceUpdateBatch();
readbackBatch->readBackTexture({ texture.data() }, &readResult);
cb->endPass(readbackBatch);
rhi->endOffscreenFrame();
QVERIFY(!result.isNull());
if (impl == QRhi::Null)
return;
// Flip with D3D and Metal because these have Y down in images. Vulkan does
// not need this because there Y is down both in images and in NDC, which
// just happens to give correct results with our OpenGL-targeted vertex and
// UV data.
if (rhi->isYUpInFramebuffer() != rhi->isYUpInNDC())
result = std::move(result).mirrored();
// we added the input image + red + green together, so red and green must be all 1
for (int y = 0; y < result.height(); ++y) {
for (int x = 0; x < result.width(); ++x) {
const QRgb pixel = result.pixel(x, y);
QCOMPARE(qRed(pixel), 255);
QCOMPARE(qGreen(pixel), 255);
}
}
}
void tst_QRhi::renderToTextureTexturedQuadAndUniformBuffer_data()
{
rhiTestData();
}
void tst_QRhi::renderToTextureTexturedQuadAndUniformBuffer()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing rendering");
QImage inputImage;
inputImage.load(QLatin1String(":/data/qt256.png"));
QVERIFY(!inputImage.isNull());
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, inputImage.size(), 1,
QRhiTexture::RenderTarget | QRhiTexture::UsedAsTransferSource));
QVERIFY(texture->create());
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ texture.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QRhiCommandBuffer *cb = nullptr;
QVERIFY(rhi->beginOffscreenFrame(&cb) == QRhi::FrameOpSuccess);
QVERIFY(cb);
QRhiResourceUpdateBatch *updates = rhi->nextResourceUpdateBatch();
QScopedPointer<QRhiBuffer> vbuf(rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(quadVerticesUvs)));
QVERIFY(vbuf->create());
updates->uploadStaticBuffer(vbuf.data(), quadVerticesUvs);
// There will be two renderpasses. One renders with no transformation and
// an opacity of 0.5, the second has a rotation. Bake the uniform data for
// both into a single buffer.
const int UNIFORM_BLOCK_SIZE = 64 + 4; // matrix + opacity
const int secondUbufOffset = rhi->ubufAligned(UNIFORM_BLOCK_SIZE);
const int UBUF_SIZE = secondUbufOffset + UNIFORM_BLOCK_SIZE;
QScopedPointer<QRhiBuffer> ubuf(rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, UBUF_SIZE));
QVERIFY(ubuf->create());
QMatrix4x4 matrix;
updates->updateDynamicBuffer(ubuf.data(), 0, 64, matrix.constData());
float opacity = 0.5f;
updates->updateDynamicBuffer(ubuf.data(), 64, 4, &opacity);
// rotation by 45 degrees around the Z axis
matrix.rotate(45, 0, 0, 1);
updates->updateDynamicBuffer(ubuf.data(), secondUbufOffset, 64, matrix.constData());
updates->updateDynamicBuffer(ubuf.data(), secondUbufOffset + 64, 4, &opacity);
QScopedPointer<QRhiTexture> inputTexture(rhi->newTexture(QRhiTexture::RGBA8, inputImage.size()));
QVERIFY(inputTexture->create());
updates->uploadTexture(inputTexture.data(), inputImage);
QScopedPointer<QRhiSampler> sampler(rhi->newSampler(QRhiSampler::Nearest, QRhiSampler::Nearest, QRhiSampler::None,
QRhiSampler::ClampToEdge, QRhiSampler::ClampToEdge));
QVERIFY(sampler->create());
const QRhiShaderResourceBinding::StageFlags commonVisibility = QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage;
QScopedPointer<QRhiShaderResourceBindings> srb0(rhi->newShaderResourceBindings());
srb0->setBindings({
QRhiShaderResourceBinding::uniformBuffer(0, commonVisibility, ubuf.data(), 0, UNIFORM_BLOCK_SIZE),
QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, inputTexture.data(), sampler.data())
});
QVERIFY(srb0->create());
QScopedPointer<QRhiShaderResourceBindings> srb1(rhi->newShaderResourceBindings());
srb1->setBindings({
QRhiShaderResourceBinding::uniformBuffer(0, commonVisibility, ubuf.data(), secondUbufOffset, UNIFORM_BLOCK_SIZE),
QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, inputTexture.data(), sampler.data())
});
QVERIFY(srb1->create());
QVERIFY(srb1->isLayoutCompatible(srb0.data())); // hence no need for a second pipeline
QScopedPointer<QRhiGraphicsPipeline> pipeline(rhi->newGraphicsPipeline());
pipeline->setTopology(QRhiGraphicsPipeline::TriangleStrip);
QShader vs = loadShader(":/data/textured.vert.qsb");
QVERIFY(vs.isValid());
QShaderDescription shaderDesc = vs.description();
QVERIFY(!shaderDesc.uniformBlocks().isEmpty());
QCOMPARE(shaderDesc.uniformBlocks().first().size, UNIFORM_BLOCK_SIZE);
QShader fs = loadShader(":/data/textured.frag.qsb");
QVERIFY(fs.isValid());
shaderDesc = fs.description();
QVERIFY(!shaderDesc.uniformBlocks().isEmpty());
QCOMPARE(shaderDesc.uniformBlocks().first().size, UNIFORM_BLOCK_SIZE);
pipeline->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
QRhiVertexInputLayout inputLayout;
inputLayout.setBindings({ { 4 * sizeof(float) } });
inputLayout.setAttributes({
{ 0, 0, QRhiVertexInputAttribute::Float2, 0 },
{ 0, 1, QRhiVertexInputAttribute::Float2, 2 * sizeof(float) }
});
pipeline->setVertexInputLayout(inputLayout);
pipeline->setShaderResourceBindings(srb0.data());
pipeline->setRenderPassDescriptor(rpDesc.data());
QVERIFY(pipeline->create());
cb->beginPass(rt.data(), Qt::black, { 1.0f, 0 }, updates);
cb->setGraphicsPipeline(pipeline.data());
cb->setShaderResources();
cb->setViewport({ 0, 0, float(texture->pixelSize().width()), float(texture->pixelSize().height()) });
QRhiCommandBuffer::VertexInput vbindings(vbuf.data(), 0);
cb->setVertexInput(0, 1, &vbindings);
cb->draw(4);
QRhiReadbackResult readResult0;
QImage result0;
readResult0.completed = [&readResult0, &result0] {
result0 = QImage(reinterpret_cast<const uchar *>(readResult0.data.constData()),
readResult0.pixelSize.width(), readResult0.pixelSize.height(),
QImage::Format_RGBA8888_Premultiplied);
};
QRhiResourceUpdateBatch *readbackBatch = rhi->nextResourceUpdateBatch();
readbackBatch->readBackTexture({ texture.data() }, &readResult0);
cb->endPass(readbackBatch);
// second pass (rotated)
cb->beginPass(rt.data(), Qt::black, { 1.0f, 0 });
cb->setGraphicsPipeline(pipeline.data());
cb->setShaderResources(srb1.data()); // sources data from a different offset in ubuf
cb->setViewport({ 0, 0, float(texture->pixelSize().width()), float(texture->pixelSize().height()) });
cb->setVertexInput(0, 1, &vbindings);
cb->draw(4);
QRhiReadbackResult readResult1;
QImage result1;
readResult1.completed = [&readResult1, &result1] {
result1 = QImage(reinterpret_cast<const uchar *>(readResult1.data.constData()),
readResult1.pixelSize.width(), readResult1.pixelSize.height(),
QImage::Format_RGBA8888_Premultiplied);
};
readbackBatch = rhi->nextResourceUpdateBatch();
readbackBatch->readBackTexture({ texture.data() }, &readResult1);
cb->endPass(readbackBatch);
rhi->endOffscreenFrame();
QVERIFY(!result0.isNull());
QVERIFY(!result1.isNull());
if (rhi->isYUpInFramebuffer() != rhi->isYUpInNDC()) {
result0 = std::move(result0).mirrored();
result1 = std::move(result1).mirrored();
}
if (impl == QRhi::Null)
return;
// opacity 0.5 (premultiplied)
static const auto checkSemiWhite = [](const QRgb &c) {
QRgb semiWhite127 = qPremultiply(qRgba(255, 255, 255, 127));
QRgb semiWhite128 = qPremultiply(qRgba(255, 255, 255, 128));
return c == semiWhite127 || c == semiWhite128;
};
QVERIFY(checkSemiWhite(result0.pixel(79, 77)));
QVERIFY(checkSemiWhite(result0.pixel(124, 81)));
QVERIFY(checkSemiWhite(result0.pixel(128, 149)));
QVERIFY(checkSemiWhite(result0.pixel(120, 189)));
QVERIFY(checkSemiWhite(result0.pixel(116, 185)));
QVERIFY(checkSemiWhite(result0.pixel(191, 172)));
QRgb empty = qRgba(0, 0, 0, 0);
QCOMPARE(result0.pixel(11, 45), empty);
QCOMPARE(result0.pixel(246, 202), empty);
QCOMPARE(result0.pixel(130, 18), empty);
QCOMPARE(result0.pixel(4, 227), empty);
// also rotated 45 degrees around Z
QRgb black = qRgba(0, 0, 0, 255);
QCOMPARE(result1.pixel(20, 23), black);
QCOMPARE(result1.pixel(47, 5), black);
QCOMPARE(result1.pixel(238, 22), black);
QCOMPARE(result1.pixel(250, 203), black);
QCOMPARE(result1.pixel(224, 237), black);
QCOMPARE(result1.pixel(12, 221), black);
QVERIFY(checkSemiWhite(result1.pixel(142, 67)));
QVERIFY(checkSemiWhite(result1.pixel(81, 79)));
QVERIFY(checkSemiWhite(result1.pixel(79, 168)));
QVERIFY(checkSemiWhite(result1.pixel(146, 204)));
QVERIFY(checkSemiWhite(result1.pixel(186, 156)));
QCOMPARE(result1.pixel(204, 45), empty);
QCOMPARE(result1.pixel(28, 178), empty);
}
void tst_QRhi::renderToTextureTexturedQuadAllDynamicBuffers_data()
{
rhiTestData();
}
void tst_QRhi::renderToTextureTexturedQuadAllDynamicBuffers()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing rendering");
QImage inputImage;
inputImage.load(QLatin1String(":/data/qt256.png"));
QVERIFY(!inputImage.isNull());
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, inputImage.size(), 1,
QRhiTexture::RenderTarget | QRhiTexture::UsedAsTransferSource));
QVERIFY(texture->create());
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ texture.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QRhiCommandBuffer *cb = nullptr;
QVERIFY(rhi->beginOffscreenFrame(&cb) == QRhi::FrameOpSuccess);
QVERIFY(cb);
// Do like renderToTextureTexturedQuadAndUniformBuffer but only use Dynamic
// buffers, and do updates with the direct beginFullDynamicBufferUpdate
// function. (for some backend this is different for UniformBuffer and
// others, hence useful exercising it also on a VertexBuffer)
QScopedPointer<QRhiBuffer> vbuf(rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::VertexBuffer, sizeof(quadVerticesUvs)));
QVERIFY(vbuf->create());
char *p = vbuf->beginFullDynamicBufferUpdateForCurrentFrame();
QVERIFY(p);
memcpy(p, quadVerticesUvs, sizeof(quadVerticesUvs));
vbuf->endFullDynamicBufferUpdateForCurrentFrame();
const int UNIFORM_BLOCK_SIZE = 64 + 4; // matrix + opacity
const int secondUbufOffset = rhi->ubufAligned(UNIFORM_BLOCK_SIZE);
const int UBUF_SIZE = secondUbufOffset + UNIFORM_BLOCK_SIZE;
QScopedPointer<QRhiBuffer> ubuf(rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, UBUF_SIZE));
QVERIFY(ubuf->create());
p = ubuf->beginFullDynamicBufferUpdateForCurrentFrame();
QVERIFY(p);
QMatrix4x4 matrix;
memcpy(p, matrix.constData(), 64);
float opacity = 0.5f;
memcpy(p + 64, &opacity, 4);
// rotation by 45 degrees around the Z axis
matrix.rotate(45, 0, 0, 1);
memcpy(p + secondUbufOffset, matrix.constData(), 64);
memcpy(p + secondUbufOffset + 64, &opacity, 4);
ubuf->endFullDynamicBufferUpdateForCurrentFrame();
QRhiResourceUpdateBatch *updates = rhi->nextResourceUpdateBatch();
QScopedPointer<QRhiTexture> inputTexture(rhi->newTexture(QRhiTexture::RGBA8, inputImage.size()));
QVERIFY(inputTexture->create());
updates->uploadTexture(inputTexture.data(), inputImage);
cb->resourceUpdate(updates);
QScopedPointer<QRhiSampler> sampler(rhi->newSampler(QRhiSampler::Nearest, QRhiSampler::Nearest, QRhiSampler::None,
QRhiSampler::ClampToEdge, QRhiSampler::ClampToEdge));
QVERIFY(sampler->create());
const QRhiShaderResourceBinding::StageFlags commonVisibility = QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage;
QScopedPointer<QRhiShaderResourceBindings> srb0(rhi->newShaderResourceBindings());
srb0->setBindings({
QRhiShaderResourceBinding::uniformBuffer(0, commonVisibility, ubuf.data(), 0, UNIFORM_BLOCK_SIZE),
QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, inputTexture.data(), sampler.data())
});
QVERIFY(srb0->create());
QScopedPointer<QRhiShaderResourceBindings> srb1(rhi->newShaderResourceBindings());
srb1->setBindings({
QRhiShaderResourceBinding::uniformBuffer(0, commonVisibility, ubuf.data(), secondUbufOffset, UNIFORM_BLOCK_SIZE),
QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, inputTexture.data(), sampler.data())
});
QVERIFY(srb1->create());
QVERIFY(srb1->isLayoutCompatible(srb0.data())); // hence no need for a second pipeline
QScopedPointer<QRhiGraphicsPipeline> pipeline(rhi->newGraphicsPipeline());
pipeline->setTopology(QRhiGraphicsPipeline::TriangleStrip);
QShader vs = loadShader(":/data/textured.vert.qsb");
QVERIFY(vs.isValid());
QShaderDescription shaderDesc = vs.description();
QVERIFY(!shaderDesc.uniformBlocks().isEmpty());
QCOMPARE(shaderDesc.uniformBlocks().first().size, UNIFORM_BLOCK_SIZE);
QShader fs = loadShader(":/data/textured.frag.qsb");
QVERIFY(fs.isValid());
shaderDesc = fs.description();
QVERIFY(!shaderDesc.uniformBlocks().isEmpty());
QCOMPARE(shaderDesc.uniformBlocks().first().size, UNIFORM_BLOCK_SIZE);
pipeline->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
QRhiVertexInputLayout inputLayout;
inputLayout.setBindings({ { 4 * sizeof(float) } });
inputLayout.setAttributes({
{ 0, 0, QRhiVertexInputAttribute::Float2, 0 },
{ 0, 1, QRhiVertexInputAttribute::Float2, 2 * sizeof(float) }
});
pipeline->setVertexInputLayout(inputLayout);
pipeline->setShaderResourceBindings(srb0.data());
pipeline->setRenderPassDescriptor(rpDesc.data());
QVERIFY(pipeline->create());
cb->beginPass(rt.data(), Qt::black, { 1.0f, 0 });
cb->setGraphicsPipeline(pipeline.data());
cb->setShaderResources();
cb->setViewport({ 0, 0, float(texture->pixelSize().width()), float(texture->pixelSize().height()) });
QRhiCommandBuffer::VertexInput vbindings(vbuf.data(), 0);
cb->setVertexInput(0, 1, &vbindings);
cb->draw(4);
QRhiReadbackResult readResult0;
QImage result0;
readResult0.completed = [&readResult0, &result0] {
result0 = QImage(reinterpret_cast<const uchar *>(readResult0.data.constData()),
readResult0.pixelSize.width(), readResult0.pixelSize.height(),
QImage::Format_RGBA8888_Premultiplied);
};
QRhiResourceUpdateBatch *readbackBatch = rhi->nextResourceUpdateBatch();
readbackBatch->readBackTexture({ texture.data() }, &readResult0);
cb->endPass(readbackBatch);
// second pass (rotated)
cb->beginPass(rt.data(), Qt::black, { 1.0f, 0 });
cb->setGraphicsPipeline(pipeline.data());
cb->setShaderResources(srb1.data()); // sources data from a different offset in ubuf
cb->setViewport({ 0, 0, float(texture->pixelSize().width()), float(texture->pixelSize().height()) });
cb->setVertexInput(0, 1, &vbindings);
cb->draw(4);
QRhiReadbackResult readResult1;
QImage result1;
readResult1.completed = [&readResult1, &result1] {
result1 = QImage(reinterpret_cast<const uchar *>(readResult1.data.constData()),
readResult1.pixelSize.width(), readResult1.pixelSize.height(),
QImage::Format_RGBA8888_Premultiplied);
};
readbackBatch = rhi->nextResourceUpdateBatch();
readbackBatch->readBackTexture({ texture.data() }, &readResult1);
cb->endPass(readbackBatch);
rhi->endOffscreenFrame();
QVERIFY(!result0.isNull());
QVERIFY(!result1.isNull());
if (rhi->isYUpInFramebuffer() != rhi->isYUpInNDC()) {
result0 = std::move(result0).mirrored();
result1 = std::move(result1).mirrored();
}
if (impl == QRhi::Null)
return;
// opacity 0.5 (premultiplied)
static const auto checkSemiWhite = [](const QRgb &c) {
QRgb semiWhite127 = qPremultiply(qRgba(255, 255, 255, 127));
QRgb semiWhite128 = qPremultiply(qRgba(255, 255, 255, 128));
return c == semiWhite127 || c == semiWhite128;
};
QVERIFY(checkSemiWhite(result0.pixel(79, 77)));
QVERIFY(checkSemiWhite(result0.pixel(124, 81)));
QVERIFY(checkSemiWhite(result0.pixel(128, 149)));
QVERIFY(checkSemiWhite(result0.pixel(120, 189)));
QVERIFY(checkSemiWhite(result0.pixel(116, 185)));
QVERIFY(checkSemiWhite(result0.pixel(191, 172)));
QRgb empty = qRgba(0, 0, 0, 0);
QCOMPARE(result0.pixel(11, 45), empty);
QCOMPARE(result0.pixel(246, 202), empty);
QCOMPARE(result0.pixel(130, 18), empty);
QCOMPARE(result0.pixel(4, 227), empty);
// also rotated 45 degrees around Z
QRgb black = qRgba(0, 0, 0, 255);
QCOMPARE(result1.pixel(20, 23), black);
QCOMPARE(result1.pixel(47, 5), black);
QCOMPARE(result1.pixel(238, 22), black);
QCOMPARE(result1.pixel(250, 203), black);
QCOMPARE(result1.pixel(224, 237), black);
QCOMPARE(result1.pixel(12, 221), black);
QVERIFY(checkSemiWhite(result1.pixel(142, 67)));
QVERIFY(checkSemiWhite(result1.pixel(81, 79)));
QVERIFY(checkSemiWhite(result1.pixel(79, 168)));
QVERIFY(checkSemiWhite(result1.pixel(146, 204)));
QVERIFY(checkSemiWhite(result1.pixel(186, 156)));
QCOMPARE(result1.pixel(204, 45), empty);
QCOMPARE(result1.pixel(28, 178), empty);
}
void tst_QRhi::renderToTextureDeferredSrb_data()
{
rhiTestData();
}
void tst_QRhi::renderToTextureDeferredSrb()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing rendering");
QImage inputImage;
inputImage.load(QLatin1String(":/data/qt256.png"));
QVERIFY(!inputImage.isNull());
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, inputImage.size(), 1,
QRhiTexture::RenderTarget | QRhiTexture::UsedAsTransferSource));
QVERIFY(texture->create());
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ texture.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QRhiCommandBuffer *cb = nullptr;
QVERIFY(rhi->beginOffscreenFrame(&cb) == QRhi::FrameOpSuccess);
QVERIFY(cb);
QRhiResourceUpdateBatch *updates = rhi->nextResourceUpdateBatch();
QScopedPointer<QRhiBuffer> vbuf(rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(quadVerticesUvs)));
QVERIFY(vbuf->create());
updates->uploadStaticBuffer(vbuf.data(), quadVerticesUvs);
QScopedPointer<QRhiTexture> inputTexture(rhi->newTexture(QRhiTexture::RGBA8, inputImage.size()));
QVERIFY(inputTexture->create());
updates->uploadTexture(inputTexture.data(), inputImage);
QScopedPointer<QRhiSampler> sampler(rhi->newSampler(QRhiSampler::Nearest, QRhiSampler::Nearest, QRhiSampler::None,
QRhiSampler::ClampToEdge, QRhiSampler::ClampToEdge));
QVERIFY(sampler->create());
QScopedPointer<QRhiBuffer> ubuf(rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 64 + 4));
QVERIFY(ubuf->create());
QMatrix4x4 matrix;
updates->updateDynamicBuffer(ubuf.data(), 0, 64, matrix.constData());
float opacity = 0.5f;
updates->updateDynamicBuffer(ubuf.data(), 64, 4, &opacity);
// this is the specific thing to test here: an srb with null resources
const QRhiShaderResourceBinding::StageFlags commonVisibility = QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage;
QScopedPointer<QRhiShaderResourceBindings> layoutOnlySrb(rhi->newShaderResourceBindings());
layoutOnlySrb->setBindings({
QRhiShaderResourceBinding::uniformBuffer(0, commonVisibility, nullptr),
QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, nullptr, nullptr)
});
QVERIFY(layoutOnlySrb->create());
QScopedPointer<QRhiGraphicsPipeline> pipeline(rhi->newGraphicsPipeline());
pipeline->setTopology(QRhiGraphicsPipeline::TriangleStrip);
QShader vs = loadShader(":/data/textured.vert.qsb");
QVERIFY(vs.isValid());
QShader fs = loadShader(":/data/textured.frag.qsb");
QVERIFY(fs.isValid());
pipeline->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
QRhiVertexInputLayout inputLayout;
inputLayout.setBindings({ { 4 * sizeof(float) } });
inputLayout.setAttributes({
{ 0, 0, QRhiVertexInputAttribute::Float2, 0 },
{ 0, 1, QRhiVertexInputAttribute::Float2, 2 * sizeof(float) }
});
pipeline->setVertexInputLayout(inputLayout);
pipeline->setShaderResourceBindings(layoutOnlySrb.data()); // no resources needed yet
pipeline->setRenderPassDescriptor(rpDesc.data());
QVERIFY(pipeline->create());
// another, layout compatible, srb with the actual resources
QScopedPointer<QRhiShaderResourceBindings> layoutCompatibleSrbWithResources(rhi->newShaderResourceBindings());
layoutCompatibleSrbWithResources->setBindings({
QRhiShaderResourceBinding::uniformBuffer(0, commonVisibility, ubuf.data()),
QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, inputTexture.data(), sampler.data())
});
QVERIFY(layoutCompatibleSrbWithResources->create());
cb->beginPass(rt.data(), Qt::black, { 1.0f, 0 }, updates);
cb->setGraphicsPipeline(pipeline.data());
cb->setShaderResources(layoutCompatibleSrbWithResources.data()); // here we must use the srb referencing the resources
cb->setViewport({ 0, 0, float(texture->pixelSize().width()), float(texture->pixelSize().height()) });
QRhiCommandBuffer::VertexInput vbindings(vbuf.data(), 0);
cb->setVertexInput(0, 1, &vbindings);
cb->draw(4);
QRhiReadbackResult readResult;
QImage result;
readResult.completed = [&readResult, &result] {
result = QImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
QImage::Format_RGBA8888_Premultiplied);
};
QRhiResourceUpdateBatch *readbackBatch = rhi->nextResourceUpdateBatch();
readbackBatch->readBackTexture({ texture.data() }, &readResult);
cb->endPass(readbackBatch);
rhi->endOffscreenFrame();
QVERIFY(!result.isNull());
if (impl == QRhi::Null)
return;
if (rhi->isYUpInFramebuffer() != rhi->isYUpInNDC())
result = std::move(result).mirrored();
// opacity 0.5 (premultiplied)
static const auto checkSemiWhite = [](const QRgb &c) {
QRgb semiWhite127 = qPremultiply(qRgba(255, 255, 255, 127));
QRgb semiWhite128 = qPremultiply(qRgba(255, 255, 255, 128));
return c == semiWhite127 || c == semiWhite128;
};
QVERIFY(checkSemiWhite(result.pixel(79, 77)));
QVERIFY(checkSemiWhite(result.pixel(124, 81)));
QVERIFY(checkSemiWhite(result.pixel(128, 149)));
QVERIFY(checkSemiWhite(result.pixel(120, 189)));
QVERIFY(checkSemiWhite(result.pixel(116, 185)));
QVERIFY(checkSemiWhite(result.pixel(191, 172)));
QRgb empty = qRgba(0, 0, 0, 0);
QCOMPARE(result.pixel(11, 45), empty);
QCOMPARE(result.pixel(246, 202), empty);
QCOMPARE(result.pixel(130, 18), empty);
QCOMPARE(result.pixel(4, 227), empty);
}
void tst_QRhi::renderToTextureMultipleUniformBuffersAndDynamicOffset_data()
{
rhiTestData();
}
void tst_QRhi::renderToTextureMultipleUniformBuffersAndDynamicOffset()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing rendering");
QImage inputImage;
inputImage.load(QLatin1String(":/data/qt256.png"));
QVERIFY(!inputImage.isNull());
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, inputImage.size(), 1,
QRhiTexture::RenderTarget | QRhiTexture::UsedAsTransferSource));
QVERIFY(texture->create());
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ texture.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QRhiCommandBuffer *cb = nullptr;
QVERIFY(rhi->beginOffscreenFrame(&cb) == QRhi::FrameOpSuccess);
QVERIFY(cb);
QRhiResourceUpdateBatch *updates = rhi->nextResourceUpdateBatch();
QScopedPointer<QRhiBuffer> vbuf(rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(quadVerticesUvs)));
QVERIFY(vbuf->create());
updates->uploadStaticBuffer(vbuf.data(), quadVerticesUvs);
QScopedPointer<QRhiTexture> inputTexture(rhi->newTexture(QRhiTexture::RGBA8, inputImage.size()));
QVERIFY(inputTexture->create());
updates->uploadTexture(inputTexture.data(), inputImage);
QScopedPointer<QRhiSampler> sampler(rhi->newSampler(QRhiSampler::Nearest, QRhiSampler::Nearest, QRhiSampler::None,
QRhiSampler::ClampToEdge, QRhiSampler::ClampToEdge));
QVERIFY(sampler->create());
const int MATRIX_COUNT = 4; // put 4 mat4s into the buffer, will only use one
const int ubufElemSize = rhi->ubufAligned(64);
QVERIFY(ubufElemSize >= 64);
QScopedPointer<QRhiBuffer> ubuf(rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, MATRIX_COUNT * ubufElemSize));
QVERIFY(ubuf->create());
float zeroes[16];
memset(zeroes, 0, sizeof(zeroes));
updates->updateDynamicBuffer(ubuf.data(), 0, 64, zeroes);
updates->updateDynamicBuffer(ubuf.data(), ubufElemSize, 64, zeroes);
// the only correct matrix is the third one
QMatrix4x4 matrix;
updates->updateDynamicBuffer(ubuf.data(), ubufElemSize * 2, 64, matrix.constData());
updates->updateDynamicBuffer(ubuf.data(), ubufElemSize * 3, 64, zeroes);
const int OPACITY_COUNT = 6; // put 6 floats into the buffer, will only use one
const int ubuf2ElemSize = rhi->ubufAligned(4);
QVERIFY(ubuf2ElemSize >= 4);
QScopedPointer<QRhiBuffer> ubuf2(rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, OPACITY_COUNT * ubuf2ElemSize));
QVERIFY(ubuf2->create());
updates->updateDynamicBuffer(ubuf2.data(), 0, 4, &zeroes[0]);
updates->updateDynamicBuffer(ubuf2.data(), ubuf2ElemSize, 4, &zeroes[0]);
updates->updateDynamicBuffer(ubuf2.data(), ubuf2ElemSize * 2, 4, &zeroes[0]);
// the only correct opacity value is the fourth one
float opacity = 0.5f;
updates->updateDynamicBuffer(ubuf2.data(), ubuf2ElemSize * 3, 4, &opacity);
updates->updateDynamicBuffer(ubuf2.data(), ubuf2ElemSize * 4, 4, &zeroes[0]);
updates->updateDynamicBuffer(ubuf2.data(), ubuf2ElemSize * 5, 4, &zeroes[0]);
const QRhiShaderResourceBinding::StageFlags commonVisibility = QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage;
QScopedPointer<QRhiShaderResourceBindings> srb(rhi->newShaderResourceBindings());
srb->setBindings({
QRhiShaderResourceBinding::uniformBufferWithDynamicOffset(0, commonVisibility, ubuf.data(), 64),
QRhiShaderResourceBinding::uniformBufferWithDynamicOffset(1, commonVisibility, ubuf2.data(), 4),
QRhiShaderResourceBinding::sampledTexture(2, QRhiShaderResourceBinding::FragmentStage, inputTexture.data(), sampler.data())
});
QVERIFY(srb->create());
QScopedPointer<QRhiGraphicsPipeline> pipeline(rhi->newGraphicsPipeline());
pipeline->setTopology(QRhiGraphicsPipeline::TriangleStrip);
QShader vs = loadShader(":/data/textured_multiubuf.vert.qsb");
QVERIFY(vs.isValid());
QShader fs = loadShader(":/data/textured_multiubuf.frag.qsb");
QVERIFY(fs.isValid());
pipeline->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
QRhiVertexInputLayout inputLayout;
inputLayout.setBindings({ { 4 * sizeof(float) } });
inputLayout.setAttributes({
{ 0, 0, QRhiVertexInputAttribute::Float2, 0 },
{ 0, 1, QRhiVertexInputAttribute::Float2, 2 * sizeof(float) }
});
pipeline->setVertexInputLayout(inputLayout);
pipeline->setShaderResourceBindings(srb.data());
pipeline->setRenderPassDescriptor(rpDesc.data());
QVERIFY(pipeline->create());
cb->beginPass(rt.data(), Qt::black, { 1.0f, 0 }, updates);
cb->setGraphicsPipeline(pipeline.data());
// Now the magic, expose the 3rd matrix and 4th opacity value to the shader.
// If the handling of dynamic offsets were broken, the shaders would likely
// "see" an all zero matrix and zero opacity, thus leading to different
// rendering output. This way we can verify if using dynamic offsets, and
// more than one at the same time, is functional.
QVarLengthArray<QPair<int, quint32>, 2> dynamicOffset = {
{ 0, quint32(ubufElemSize * 2) },
{ 1, quint32(ubuf2ElemSize * 3) },
};
cb->setShaderResources(srb.data(), 2, dynamicOffset.constData());
cb->setViewport({ 0, 0, float(texture->pixelSize().width()), float(texture->pixelSize().height()) });
QRhiCommandBuffer::VertexInput vbindings(vbuf.data(), 0);
cb->setVertexInput(0, 1, &vbindings);
cb->draw(4);
QRhiReadbackResult readResult;
QImage result;
readResult.completed = [&readResult, &result] {
result = QImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
QImage::Format_RGBA8888_Premultiplied);
};
QRhiResourceUpdateBatch *readbackBatch = rhi->nextResourceUpdateBatch();
readbackBatch->readBackTexture({ texture.data() }, &readResult);
cb->endPass(readbackBatch);
rhi->endOffscreenFrame();
QVERIFY(!result.isNull());
if (impl == QRhi::Null)
return;
if (rhi->isYUpInFramebuffer() != rhi->isYUpInNDC())
result = std::move(result).mirrored();
// opacity 0.5 (premultiplied)
static const auto checkSemiWhite = [](const QRgb &c) {
QRgb semiWhite127 = qPremultiply(qRgba(255, 255, 255, 127));
QRgb semiWhite128 = qPremultiply(qRgba(255, 255, 255, 128));
return c == semiWhite127 || c == semiWhite128;
};
QVERIFY(checkSemiWhite(result.pixel(79, 77)));
QVERIFY(checkSemiWhite(result.pixel(124, 81)));
QVERIFY(checkSemiWhite(result.pixel(128, 149)));
QVERIFY(checkSemiWhite(result.pixel(120, 189)));
QVERIFY(checkSemiWhite(result.pixel(116, 185)));
QVERIFY(checkSemiWhite(result.pixel(191, 172)));
QRgb empty = qRgba(0, 0, 0, 0);
QCOMPARE(result.pixel(11, 45), empty);
QCOMPARE(result.pixel(246, 202), empty);
QCOMPARE(result.pixel(130, 18), empty);
QCOMPARE(result.pixel(4, 227), empty);
}
void tst_QRhi::renderToTextureSrbReuse_data()
{
rhiTestData();
}
void tst_QRhi::renderToTextureSrbReuse()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing rendering");
// Draw a textured quad with opacity 0.5. The difference to the simple tests
// of the same kind is that there are two (configuration-wise identical)
// pipeline objects that are bound after each other, with the same one srb,
// on the command buffer. This exercises, in particular for the OpenGL
// backend, that the uniforms are set for the pipelines' underlying shader
// program correctly. (with OpenGL we may not use real uniform buffers,
// which presents extra pipeline-srb tracking work for the backend)
QImage inputImage;
inputImage.load(QLatin1String(":/data/qt256.png"));
QVERIFY(!inputImage.isNull());
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, inputImage.size(), 1,
QRhiTexture::RenderTarget | QRhiTexture::UsedAsTransferSource));
QVERIFY(texture->create());
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ texture.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QRhiCommandBuffer *cb = nullptr;
QVERIFY(rhi->beginOffscreenFrame(&cb) == QRhi::FrameOpSuccess);
QVERIFY(cb);
QRhiResourceUpdateBatch *updates = rhi->nextResourceUpdateBatch();
QScopedPointer<QRhiBuffer> vbuf(rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(quadVerticesUvs)));
QVERIFY(vbuf->create());
updates->uploadStaticBuffer(vbuf.data(), quadVerticesUvs);
QScopedPointer<QRhiTexture> inputTexture(rhi->newTexture(QRhiTexture::RGBA8, inputImage.size()));
QVERIFY(inputTexture->create());
updates->uploadTexture(inputTexture.data(), inputImage);
QScopedPointer<QRhiSampler> sampler(rhi->newSampler(QRhiSampler::Nearest, QRhiSampler::Nearest, QRhiSampler::None,
QRhiSampler::ClampToEdge, QRhiSampler::ClampToEdge));
QVERIFY(sampler->create());
QScopedPointer<QRhiBuffer> ubuf(rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 64 + 4));
QVERIFY(ubuf->create());
QMatrix4x4 matrix;
updates->updateDynamicBuffer(ubuf.data(), 0, 64, matrix.constData());
float opacity = 0.5f;
updates->updateDynamicBuffer(ubuf.data(), 64, 4, &opacity);
const QRhiShaderResourceBinding::StageFlags commonVisibility = QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage;
QScopedPointer<QRhiShaderResourceBindings> srb(rhi->newShaderResourceBindings());
srb->setBindings({
QRhiShaderResourceBinding::uniformBuffer(0, commonVisibility, ubuf.data()),
QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, inputTexture.data(), sampler.data())
});
QVERIFY(srb->create());
QScopedPointer<QRhiGraphicsPipeline> pipeline1(rhi->newGraphicsPipeline());
pipeline1->setTopology(QRhiGraphicsPipeline::TriangleStrip);
QShader vs = loadShader(":/data/textured.vert.qsb");
QVERIFY(vs.isValid());
QShader fs = loadShader(":/data/textured.frag.qsb");
QVERIFY(fs.isValid());
pipeline1->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
QRhiVertexInputLayout inputLayout;
inputLayout.setBindings({ { 4 * sizeof(float) } });
inputLayout.setAttributes({
{ 0, 0, QRhiVertexInputAttribute::Float2, 0 },
{ 0, 1, QRhiVertexInputAttribute::Float2, 2 * sizeof(float) }
});
pipeline1->setVertexInputLayout(inputLayout);
pipeline1->setShaderResourceBindings(srb.data());
pipeline1->setRenderPassDescriptor(rpDesc.data());
QVERIFY(pipeline1->create());
QScopedPointer<QRhiGraphicsPipeline> pipeline2(rhi->newGraphicsPipeline());
pipeline2->setTopology(QRhiGraphicsPipeline::TriangleStrip);
pipeline2->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
pipeline2->setVertexInputLayout(inputLayout);
pipeline2->setShaderResourceBindings(srb.data());
pipeline2->setRenderPassDescriptor(rpDesc.data());
QVERIFY(pipeline2->create());
cb->beginPass(rt.data(), Qt::black, { 1.0f, 0 }, updates);
// The key step in this test: set the 1st pipeline, then the 2nd, the
// srb is the same. This should lead to identical results to just
// binding one of them.
cb->setGraphicsPipeline(pipeline1.data());
cb->setShaderResources(srb.data());
cb->setGraphicsPipeline(pipeline2.data());
cb->setShaderResources(srb.data());
cb->setViewport({ 0, 0, float(texture->pixelSize().width()), float(texture->pixelSize().height()) });
QRhiCommandBuffer::VertexInput vbindings(vbuf.data(), 0);
cb->setVertexInput(0, 1, &vbindings);
cb->draw(4);
QRhiReadbackResult readResult;
QImage result;
readResult.completed = [&readResult, &result] {
result = QImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
QImage::Format_RGBA8888_Premultiplied);
};
QRhiResourceUpdateBatch *readbackBatch = rhi->nextResourceUpdateBatch();
readbackBatch->readBackTexture({ texture.data() }, &readResult);
cb->endPass(readbackBatch);
rhi->endOffscreenFrame();
QVERIFY(!result.isNull());
if (impl == QRhi::Null)
return;
if (rhi->isYUpInFramebuffer() != rhi->isYUpInNDC())
result = std::move(result).mirrored();
// opacity 0.5 (premultiplied)
static const auto checkSemiWhite = [](const QRgb &c) {
QRgb semiWhite127 = qPremultiply(qRgba(255, 255, 255, 127));
QRgb semiWhite128 = qPremultiply(qRgba(255, 255, 255, 128));
return c == semiWhite127 || c == semiWhite128;
};
QVERIFY(checkSemiWhite(result.pixel(79, 77)));
QVERIFY(checkSemiWhite(result.pixel(124, 81)));
QVERIFY(checkSemiWhite(result.pixel(128, 149)));
QVERIFY(checkSemiWhite(result.pixel(120, 189)));
QVERIFY(checkSemiWhite(result.pixel(116, 185)));
QVERIFY(checkSemiWhite(result.pixel(191, 172)));
QRgb empty = qRgba(0, 0, 0, 0);
QCOMPARE(result.pixel(11, 45), empty);
QCOMPARE(result.pixel(246, 202), empty);
QCOMPARE(result.pixel(130, 18), empty);
QCOMPARE(result.pixel(4, 227), empty);
}
void tst_QRhi::setWindowType(QWindow *window, QRhi::Implementation impl)
{
switch (impl) {
#ifdef TST_GL
case QRhi::OpenGLES2:
window->setFormat(QRhiGles2InitParams::adjustedFormat());
window->setSurfaceType(QSurface::OpenGLSurface);
break;
#endif
case QRhi::D3D11:
window->setSurfaceType(QSurface::Direct3DSurface);
break;
case QRhi::Metal:
window->setSurfaceType(QSurface::MetalSurface);
break;
#ifdef TST_VK
case QRhi::Vulkan:
window->setSurfaceType(QSurface::VulkanSurface);
window->setVulkanInstance(&vulkanInstance);
break;
#endif
default:
break;
}
}
void tst_QRhi::renderToWindowSimple_data()
{
rhiTestData();
}
void tst_QRhi::renderToWindowSimple()
{
if (QGuiApplication::platformName().startsWith(QLatin1String("offscreen"), Qt::CaseInsensitive))
QSKIP("Offscreen: This fails.");
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing rendering");
QScopedPointer<QWindow> window(new QWindow);
setWindowType(window.data(), impl);
window->setGeometry(0, 0, 640, 480);
window->show();
QVERIFY(QTest::qWaitForWindowExposed(window.data()));
QScopedPointer<QRhiSwapChain> swapChain(rhi->newSwapChain());
swapChain->setWindow(window.data());
swapChain->setFlags(QRhiSwapChain::UsedAsTransferSource);
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(swapChain->newCompatibleRenderPassDescriptor());
swapChain->setRenderPassDescriptor(rpDesc.data());
QVERIFY(swapChain->createOrResize());
QRhiResourceUpdateBatch *updates = rhi->nextResourceUpdateBatch();
static const float vertices[] = {
-1.0f, -1.0f,
1.0f, -1.0f,
0.0f, 1.0f
};
QScopedPointer<QRhiBuffer> vbuf(rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(vertices)));
QVERIFY(vbuf->create());
updates->uploadStaticBuffer(vbuf.data(), vertices);
QScopedPointer<QRhiShaderResourceBindings> srb(rhi->newShaderResourceBindings());
QVERIFY(srb->create());
QScopedPointer<QRhiGraphicsPipeline> pipeline(rhi->newGraphicsPipeline());
QShader vs = loadShader(":/data/simple.vert.qsb");
QVERIFY(vs.isValid());
QShader fs = loadShader(":/data/simple.frag.qsb");
QVERIFY(fs.isValid());
pipeline->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
QRhiVertexInputLayout inputLayout;
inputLayout.setBindings({ { 2 * sizeof(float) } });
inputLayout.setAttributes({ { 0, 0, QRhiVertexInputAttribute::Float2, 0 } });
pipeline->setVertexInputLayout(inputLayout);
pipeline->setShaderResourceBindings(srb.data());
pipeline->setRenderPassDescriptor(rpDesc.data());
QVERIFY(pipeline->create());
const int asyncReadbackFrames = rhi->resourceLimit(QRhi::MaxAsyncReadbackFrames);
// one frame issues the readback, then we do MaxAsyncReadbackFrames more to ensure the readback completes
const int FRAME_COUNT = asyncReadbackFrames + 1;
bool readCompleted = false;
QRhiReadbackResult readResult;
QImage result;
int readbackWidth = 0;
for (int frameNo = 0; frameNo < FRAME_COUNT; ++frameNo) {
QVERIFY(rhi->beginFrame(swapChain.data()) == QRhi::FrameOpSuccess);
QRhiCommandBuffer *cb = swapChain->currentFrameCommandBuffer();
QRhiRenderTarget *rt = swapChain->currentFrameRenderTarget();
const QSize outputSize = swapChain->currentPixelSize();
QCOMPARE(rt->pixelSize(), outputSize);
QRhiViewport viewport(0, 0, float(outputSize.width()), float(outputSize.height()));
cb->beginPass(rt, Qt::blue, { 1.0f, 0 }, updates);
updates = nullptr;
cb->setGraphicsPipeline(pipeline.data());
cb->setViewport(viewport);
QRhiCommandBuffer::VertexInput vbindings(vbuf.data(), 0);
cb->setVertexInput(0, 1, &vbindings);
cb->draw(3);
if (frameNo == 0) {
readResult.completed = [&readCompleted, &readResult, &result, &rhi] {
readCompleted = true;
QImage wrapperImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
QImage::Format_ARGB32_Premultiplied);
if (readResult.format == QRhiTexture::RGBA8)
wrapperImage = wrapperImage.rgbSwapped();
if (rhi->isYUpInFramebuffer() == rhi->isYUpInNDC())
result = wrapperImage.mirrored();
else
result = wrapperImage.copy();
};
QRhiResourceUpdateBatch *readbackBatch = rhi->nextResourceUpdateBatch();
readbackBatch->readBackTexture({}, &readResult); // read back the current backbuffer
readbackWidth = outputSize.width();
cb->endPass(readbackBatch);
} else {
cb->endPass();
}
rhi->endFrame(swapChain.data());
}
// The readback is asynchronous here. However it is guaranteed that it
// finished at latest after rendering QRhi::MaxAsyncReadbackFrames frames
// after the one that enqueues the readback.
QVERIFY(readCompleted);
QVERIFY(readbackWidth > 0);
if (impl == QRhi::Null)
return;
// Now we have a red rectangle on blue background.
const int y = 50;
const quint32 *p = reinterpret_cast<const quint32 *>(result.constScanLine(y));
int x = result.width() - 1;
int redCount = 0;
int blueCount = 0;
const int maxFuzz = 1;
while (x-- >= 0) {
const QRgb c(*p++);
if (qRed(c) >= (255 - maxFuzz) && qGreen(c) == 0 && qBlue(c) == 0)
++redCount;
else if (qRed(c) == 0 && qGreen(c) == 0 && qBlue(c) >= (255 - maxFuzz))
++blueCount;
else
QFAIL("Encountered a pixel that is neither red or blue");
}
QCOMPARE(redCount + blueCount, readbackWidth);
QVERIFY(redCount < blueCount);
}
void tst_QRhi::finishWithinSwapchainFrame_data()
{
rhiTestData();
}
void tst_QRhi::finishWithinSwapchainFrame()
{
if (QGuiApplication::platformName().startsWith(QLatin1String("offscreen"), Qt::CaseInsensitive))
QSKIP("Offscreen: This fails.");
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing rendering");
QScopedPointer<QWindow> window(new QWindow);
setWindowType(window.data(), impl);
window->setGeometry(0, 0, 640, 480);
window->show();
QVERIFY(QTest::qWaitForWindowExposed(window.data()));
QScopedPointer<QRhiSwapChain> swapChain(rhi->newSwapChain());
swapChain->setWindow(window.data());
swapChain->setFlags(QRhiSwapChain::UsedAsTransferSource);
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(swapChain->newCompatibleRenderPassDescriptor());
swapChain->setRenderPassDescriptor(rpDesc.data());
QVERIFY(swapChain->createOrResize());
QScopedPointer<QRhiShaderResourceBindings> srb(rhi->newShaderResourceBindings());
QVERIFY(srb->create());
QScopedPointer<QRhiGraphicsPipeline> pipeline(rhi->newGraphicsPipeline());
QShader vs = loadShader(":/data/simple.vert.qsb");
QVERIFY(vs.isValid());
QShader fs = loadShader(":/data/simple.frag.qsb");
QVERIFY(fs.isValid());
pipeline->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
QRhiVertexInputLayout inputLayout;
inputLayout.setBindings({ { 2 * sizeof(float) } });
inputLayout.setAttributes({ { 0, 0, QRhiVertexInputAttribute::Float2, 0 } });
pipeline->setVertexInputLayout(inputLayout);
pipeline->setShaderResourceBindings(srb.data());
pipeline->setRenderPassDescriptor(rpDesc.data());
QVERIFY(pipeline->create());
static const float vertices[] = {
-1.0f, -1.0f,
1.0f, -1.0f,
0.0f, 1.0f
};
QScopedPointer<QRhiBuffer> vbuf(rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(vertices)));
QVERIFY(vbuf->create());
// exercise begin/endExternal() just a little bit, note ExternalContent for beginPass()
QVERIFY(rhi->beginFrame(swapChain.data()) == QRhi::FrameOpSuccess);
QRhiCommandBuffer *cb = swapChain->currentFrameCommandBuffer();
QRhiRenderTarget *rt = swapChain->currentFrameRenderTarget();
const QSize outputSize = swapChain->currentPixelSize();
// repeat a sequence of upload, renderpass, readback, finish a number of
// times within the same frame
for (int i = 0; i < 5; ++i) {
QRhiResourceUpdateBatch *updates = rhi->nextResourceUpdateBatch();
updates->uploadStaticBuffer(vbuf.data(), vertices);
cb->beginPass(rt, Qt::blue, { 1.0f, 0 }, updates, QRhiCommandBuffer::ExternalContent);
// just have some commands, do not bother with draw calls
cb->setGraphicsPipeline(pipeline.data());
QRhiViewport viewport(0, 0, float(outputSize.width()), float(outputSize.height()));
cb->setViewport(viewport);
// do a dummy begin/endExternal round: interesting for Vulkan because
// there this may start end then submit a secondary command buffer
cb->beginExternal();
cb->endExternal();
cb->endPass();
QRhiReadbackResult readResult;
bool ok = false;
readResult.completed = [&readResult, &ok, impl] {
QImage wrapperImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
readResult.pixelSize.width(), readResult.pixelSize.height(),
QImage::Format_ARGB32_Premultiplied);
if (readResult.format == QRhiTexture::RGBA8)
wrapperImage = wrapperImage.rgbSwapped();
if (impl != QRhi::Null)
ok = qBlue(wrapperImage.pixel(43, 89)) > 250;
else
ok = true; // the Null backend does not actually render
};
QRhiResourceUpdateBatch *readbackBatch = rhi->nextResourceUpdateBatch();
readbackBatch->readBackTexture({}, &readResult); // read back the current backbuffer
cb->resourceUpdate(readbackBatch);
// force submit what we have so far, wait for the queue, and then start
// a new primary command buffer
rhi->finish();
QVERIFY(ok);
}
rhi->endFrame(swapChain.data());
}
void tst_QRhi::srbLayoutCompatibility_data()
{
rhiTestData();
}
void tst_QRhi::srbLayoutCompatibility()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing texture resource updates");
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, QSize(512, 512)));
QVERIFY(texture->create());
QScopedPointer<QRhiSampler> sampler(rhi->newSampler(QRhiSampler::Nearest, QRhiSampler::Nearest, QRhiSampler::None,
QRhiSampler::ClampToEdge, QRhiSampler::ClampToEdge));
QVERIFY(sampler->create());
QScopedPointer<QRhiSampler> otherSampler(rhi->newSampler(QRhiSampler::Nearest, QRhiSampler::Nearest, QRhiSampler::None,
QRhiSampler::ClampToEdge, QRhiSampler::ClampToEdge));
QVERIFY(otherSampler->create());
QScopedPointer<QRhiBuffer> buf(rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 1024));
QVERIFY(buf->create());
QScopedPointer<QRhiBuffer> otherBuf(rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 256));
QVERIFY(otherBuf->create());
// empty (compatible)
{
QScopedPointer<QRhiShaderResourceBindings> srb1(rhi->newShaderResourceBindings());
QVERIFY(srb1->create());
QScopedPointer<QRhiShaderResourceBindings> srb2(rhi->newShaderResourceBindings());
QVERIFY(srb2->create());
QVERIFY(srb1->isLayoutCompatible(srb2.data()));
QVERIFY(srb2->isLayoutCompatible(srb1.data()));
}
// different count (not compatible)
{
QScopedPointer<QRhiShaderResourceBindings> srb1(rhi->newShaderResourceBindings());
QVERIFY(srb1->create());
QScopedPointer<QRhiShaderResourceBindings> srb2(rhi->newShaderResourceBindings());
srb2->setBindings({
QRhiShaderResourceBinding::sampledTexture(0, QRhiShaderResourceBinding::FragmentStage, texture.data(), sampler.data())
});
QVERIFY(srb2->create());
QVERIFY(!srb1->isLayoutCompatible(srb2.data()));
QVERIFY(!srb2->isLayoutCompatible(srb1.data()));
}
// full match (compatible)
{
QScopedPointer<QRhiShaderResourceBindings> srb1(rhi->newShaderResourceBindings());
srb1->setBindings({
QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage, buf.data()),
QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, texture.data(), sampler.data())
});
QVERIFY(srb1->create());
QScopedPointer<QRhiShaderResourceBindings> srb2(rhi->newShaderResourceBindings());
srb2->setBindings({
QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage, buf.data()),
QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, texture.data(), sampler.data())
});
QVERIFY(srb2->create());
QVERIFY(srb1->isLayoutCompatible(srb2.data()));
QVERIFY(srb2->isLayoutCompatible(srb1.data()));
}
// different visibility (not compatible)
{
QScopedPointer<QRhiShaderResourceBindings> srb1(rhi->newShaderResourceBindings());
srb1->setBindings({
QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage, buf.data()),
});
QVERIFY(srb1->create());
QScopedPointer<QRhiShaderResourceBindings> srb2(rhi->newShaderResourceBindings());
srb2->setBindings({
QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage, buf.data()),
});
QVERIFY(srb2->create());
QVERIFY(!srb1->isLayoutCompatible(srb2.data()));
QVERIFY(!srb2->isLayoutCompatible(srb1.data()));
}
// different binding points (not compatible)
{
QScopedPointer<QRhiShaderResourceBindings> srb1(rhi->newShaderResourceBindings());
srb1->setBindings({
QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage, buf.data()),
});
QVERIFY(srb1->create());
QScopedPointer<QRhiShaderResourceBindings> srb2(rhi->newShaderResourceBindings());
srb2->setBindings({
QRhiShaderResourceBinding::uniformBuffer(1, QRhiShaderResourceBinding::VertexStage, buf.data()),
});
QVERIFY(srb2->create());
QVERIFY(!srb1->isLayoutCompatible(srb2.data()));
QVERIFY(!srb2->isLayoutCompatible(srb1.data()));
}
// different buffer region offset and size (compatible)
{
QScopedPointer<QRhiShaderResourceBindings> srb1(rhi->newShaderResourceBindings());
srb1->setBindings({
QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage, buf.data(), rhi->ubufAligned(1), 128),
QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, texture.data(), sampler.data())
});
QVERIFY(srb1->create());
QScopedPointer<QRhiShaderResourceBindings> srb2(rhi->newShaderResourceBindings());
srb2->setBindings({
QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage, buf.data()),
QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, texture.data(), sampler.data())
});
QVERIFY(srb2->create());
QVERIFY(srb1->isLayoutCompatible(srb2.data()));
QVERIFY(srb2->isLayoutCompatible(srb1.data()));
}
// different resources (compatible)
{
QScopedPointer<QRhiShaderResourceBindings> srb1(rhi->newShaderResourceBindings());
srb1->setBindings({
QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage, otherBuf.data()),
QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, texture.data(), otherSampler.data())
});
QVERIFY(srb1->create());
QScopedPointer<QRhiShaderResourceBindings> srb2(rhi->newShaderResourceBindings());
srb2->setBindings({
QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage, buf.data()),
QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, texture.data(), sampler.data())
});
QVERIFY(srb2->create());
QVERIFY(srb1->isLayoutCompatible(srb2.data()));
QVERIFY(srb2->isLayoutCompatible(srb1.data()));
}
}
void tst_QRhi::srbWithNoResource_data()
{
rhiTestData();
}
void tst_QRhi::srbWithNoResource()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing srb");
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, QSize(512, 512)));
QVERIFY(texture->create());
QScopedPointer<QRhiSampler> sampler(rhi->newSampler(QRhiSampler::Nearest, QRhiSampler::Nearest, QRhiSampler::None,
QRhiSampler::ClampToEdge, QRhiSampler::ClampToEdge));
QVERIFY(sampler->create());
QScopedPointer<QRhiBuffer> buf(rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 1024));
QVERIFY(buf->create());
{
QScopedPointer<QRhiShaderResourceBindings> srb1(rhi->newShaderResourceBindings());
srb1->setBindings({
QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage, nullptr),
QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, nullptr, nullptr)
});
QVERIFY(srb1->create());
QScopedPointer<QRhiShaderResourceBindings> srb2(rhi->newShaderResourceBindings());
srb2->setBindings({
QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage, buf.data()),
QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, texture.data(), sampler.data())
});
QVERIFY(srb2->create());
QVERIFY(srb1->isLayoutCompatible(srb2.data()));
QVERIFY(srb2->isLayoutCompatible(srb1.data()));
}
}
void tst_QRhi::renderPassDescriptorCompatibility_data()
{
rhiTestData();
}
void tst_QRhi::renderPassDescriptorCompatibility()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing renderpass descriptors");
// Note that checking compatibility is only relevant with backends where
// there is a concept of renderpass descriptions (Vulkan, and partially
// Metal). It is perfectly fine for isCompatible() to always return true
// when that is not the case (D3D11, OpenGL). Hence the 'if (Vulkan or
// Metal)' for all the negative tests. Also note "partial" for Metal:
// resolve textures for examples have no effect on compatibility with Metal.
// tex and tex2 have the same format
QScopedPointer<QRhiTexture> tex(rhi->newTexture(QRhiTexture::RGBA8, QSize(512, 512), 1, QRhiTexture::RenderTarget));
QVERIFY(tex->create());
QScopedPointer<QRhiTexture> tex2(rhi->newTexture(QRhiTexture::RGBA8, QSize(512, 512), 1, QRhiTexture::RenderTarget));
QVERIFY(tex2->create());
QScopedPointer<QRhiRenderBuffer> ds(rhi->newRenderBuffer(QRhiRenderBuffer::DepthStencil, QSize(512, 512)));
QVERIFY(ds->create());
// two texture rendertargets with tex and tex2 as color0 (compatible)
{
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ tex.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QScopedPointer<QRhiTextureRenderTarget> rt2(rhi->newTextureRenderTarget({ tex2.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc2(rt2->newCompatibleRenderPassDescriptor());
rt2->setRenderPassDescriptor(rpDesc2.data());
QVERIFY(rt2->create());
QVERIFY(rpDesc->isCompatible(rpDesc2.data()));
QVERIFY(rpDesc2->isCompatible(rpDesc.data()));
}
// two texture rendertargets with tex and tex2 as color0, and a depth-stencil attachment as well (compatible)
{
QRhiTextureRenderTargetDescription desc({ tex.data() }, ds.data());
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget(desc));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QScopedPointer<QRhiTextureRenderTarget> rt2(rhi->newTextureRenderTarget(desc));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc2(rt2->newCompatibleRenderPassDescriptor());
rt2->setRenderPassDescriptor(rpDesc2.data());
QVERIFY(rt2->create());
QVERIFY(rpDesc->isCompatible(rpDesc2.data()));
QVERIFY(rpDesc2->isCompatible(rpDesc.data()));
}
// now one of them does not have the ds attachment (not compatible)
{
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ { tex.data() }, ds.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QScopedPointer<QRhiTextureRenderTarget> rt2(rhi->newTextureRenderTarget({ tex.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc2(rt2->newCompatibleRenderPassDescriptor());
rt2->setRenderPassDescriptor(rpDesc2.data());
QVERIFY(rt2->create());
if (impl == QRhi::Vulkan || impl == QRhi::Metal) {
QVERIFY(!rpDesc->isCompatible(rpDesc2.data()));
QVERIFY(!rpDesc2->isCompatible(rpDesc.data()));
}
}
if (rhi->isFeatureSupported(QRhi::MultisampleRenderBuffer)) {
// resolve attachments (compatible)
{
QScopedPointer<QRhiRenderBuffer> msaaRenderBuffer(rhi->newRenderBuffer(QRhiRenderBuffer::Color, QSize(512, 512), 4));
QVERIFY(msaaRenderBuffer->create());
QScopedPointer<QRhiRenderBuffer> msaaRenderBuffer2(rhi->newRenderBuffer(QRhiRenderBuffer::Color, QSize(512, 512), 4));
QVERIFY(msaaRenderBuffer2->create());
QRhiColorAttachment colorAtt(msaaRenderBuffer.data()); // color0, multisample
colorAtt.setResolveTexture(tex.data()); // resolved into a non-msaa texture
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ colorAtt }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QRhiColorAttachment colorAtt2(msaaRenderBuffer2.data()); // color0, multisample
colorAtt2.setResolveTexture(tex2.data()); // resolved into a non-msaa texture
QScopedPointer<QRhiTextureRenderTarget> rt2(rhi->newTextureRenderTarget({ colorAtt2 }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc2(rt2->newCompatibleRenderPassDescriptor());
rt2->setRenderPassDescriptor(rpDesc2.data());
QVERIFY(rt2->create());
QVERIFY(rpDesc->isCompatible(rpDesc2.data()));
QVERIFY(rpDesc2->isCompatible(rpDesc.data()));
}
// missing resolve for one of them (not compatible)
{
QScopedPointer<QRhiRenderBuffer> msaaRenderBuffer(rhi->newRenderBuffer(QRhiRenderBuffer::Color, QSize(512, 512), 4));
QVERIFY(msaaRenderBuffer->create());
QScopedPointer<QRhiRenderBuffer> msaaRenderBuffer2(rhi->newRenderBuffer(QRhiRenderBuffer::Color, QSize(512, 512), 4));
QVERIFY(msaaRenderBuffer2->create());
QRhiColorAttachment colorAtt(msaaRenderBuffer.data()); // color0, multisample
colorAtt.setResolveTexture(tex.data()); // resolved into a non-msaa texture
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ colorAtt }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QRhiColorAttachment colorAtt2(msaaRenderBuffer2.data()); // color0, multisample
QScopedPointer<QRhiTextureRenderTarget> rt2(rhi->newTextureRenderTarget({ colorAtt2 }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc2(rt2->newCompatibleRenderPassDescriptor());
rt2->setRenderPassDescriptor(rpDesc2.data());
QVERIFY(rt2->create());
if (impl == QRhi::Vulkan) { // no Metal here
QVERIFY(!rpDesc->isCompatible(rpDesc2.data()));
QVERIFY(!rpDesc2->isCompatible(rpDesc.data()));
}
}
} else {
qDebug("Skipping multisample renderbuffer dependent tests");
}
if (rhi->isTextureFormatSupported(QRhiTexture::RGBA32F)) {
QScopedPointer<QRhiTexture> tex3(rhi->newTexture(QRhiTexture::RGBA32F, QSize(512, 512), 1, QRhiTexture::RenderTarget));
QVERIFY(tex3->create());
// different texture formats (not compatible)
{
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ tex.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QScopedPointer<QRhiTextureRenderTarget> rt2(rhi->newTextureRenderTarget({ tex3.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc2(rt2->newCompatibleRenderPassDescriptor());
rt2->setRenderPassDescriptor(rpDesc2.data());
QVERIFY(rt2->create());
if (impl == QRhi::Vulkan || impl == QRhi::Metal) {
QVERIFY(!rpDesc->isCompatible(rpDesc2.data()));
QVERIFY(!rpDesc2->isCompatible(rpDesc.data()));
}
}
} else {
qDebug("Skipping texture format dependent tests");
}
}
void tst_QRhi::renderPassDescriptorClone_data()
{
rhiTestData();
}
void tst_QRhi::renderPassDescriptorClone()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing renderpass descriptors");
// tex and tex2 have the same format
QScopedPointer<QRhiTexture> tex(rhi->newTexture(QRhiTexture::RGBA8, QSize(512, 512), 1, QRhiTexture::RenderTarget));
QVERIFY(tex->create());
QScopedPointer<QRhiTexture> tex2(rhi->newTexture(QRhiTexture::RGBA8, QSize(512, 512), 1, QRhiTexture::RenderTarget));
QVERIFY(tex2->create());
QScopedPointer<QRhiRenderBuffer> ds(rhi->newRenderBuffer(QRhiRenderBuffer::DepthStencil, QSize(512, 512)));
QVERIFY(ds->create());
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ tex.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QScopedPointer<QRhiRenderPassDescriptor> rpDescClone(rpDesc->newCompatibleRenderPassDescriptor());
QVERIFY(rpDescClone);
QVERIFY(rpDesc->isCompatible(rpDescClone.data()));
// rt and rt2 have the same set of attachments
QScopedPointer<QRhiTextureRenderTarget> rt2(rhi->newTextureRenderTarget({ tex2.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc2(rt2->newCompatibleRenderPassDescriptor());
rt2->setRenderPassDescriptor(rpDesc2.data());
QVERIFY(rt2->create());
QVERIFY(rpDesc2->isCompatible(rpDescClone.data()));
}
void tst_QRhi::pipelineCache_data()
{
rhiTestData();
}
void tst_QRhi::pipelineCache()
{
QFETCH(QRhi::Implementation, impl);
QFETCH(QRhiInitParams *, initParams);
QByteArray pcd;
QShader vs = loadShader(":/data/simple.vert.qsb");
QVERIFY(vs.isValid());
QShader fs = loadShader(":/data/simple.frag.qsb");
QVERIFY(fs.isValid());
QRhiVertexInputLayout inputLayout;
inputLayout.setBindings({ { 2 * sizeof(float) } });
inputLayout.setAttributes({ { 0, 0, QRhiVertexInputAttribute::Float2, 0 } });
{
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::EnablePipelineCacheDataSave));
if (!rhi)
QSKIP("QRhi could not be created, skipping testing (set)pipelineCacheData()");
if (!rhi->isFeatureSupported(QRhi::PipelineCacheDataLoadSave))
QSKIP("PipelineCacheDataLoadSave is not supported with this backend, skipping test");
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, QSize(256, 256), 1, QRhiTexture::RenderTarget));
QVERIFY(texture->create());
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ texture.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QScopedPointer<QRhiShaderResourceBindings> srb(rhi->newShaderResourceBindings());
QVERIFY(srb->create());
QScopedPointer<QRhiGraphicsPipeline> pipeline(rhi->newGraphicsPipeline());
pipeline->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
pipeline->setVertexInputLayout(inputLayout);
pipeline->setShaderResourceBindings(srb.data());
pipeline->setRenderPassDescriptor(rpDesc.data());
QVERIFY(pipeline->create());
// This cannot be more than a basic smoketest: ensure that passing
// in the data we retrieve still gives us successful pipeline
// creation. What happens internally we cannot check.
pcd = rhi->pipelineCacheData();
rhi->setPipelineCacheData(pcd);
QVERIFY(pipeline->create());
}
{
// Now from scratch, with seeding the cache right from the start,
// presumably leading to a cache hit when creating the pipeline.
QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::EnablePipelineCacheDataSave));
QVERIFY(rhi);
rhi->setPipelineCacheData(pcd);
QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, QSize(256, 256), 1, QRhiTexture::RenderTarget));
QVERIFY(texture->create());
QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ texture.data() }));
QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
rt->setRenderPassDescriptor(rpDesc.data());
QVERIFY(rt->create());
QScopedPointer<QRhiShaderResourceBindings> srb(rhi->newShaderResourceBindings());
QVERIFY(srb->create());
QScopedPointer<QRhiGraphicsPipeline> pipeline(rhi->newGraphicsPipeline());
pipeline->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
pipeline->setVertexInputLayout(inputLayout);
pipeline->setShaderResourceBindings(srb.data());
pipeline->setRenderPassDescriptor(rpDesc.data());
QVERIFY(pipeline->create());
}
}
#include <tst_qrhi.moc>
QTEST_MAIN(tst_QRhi)
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