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Diffstat (limited to 'tests/manual/rhi/rhiwidget/examplewidget.cpp')
| -rw-r--r-- | tests/manual/rhi/rhiwidget/examplewidget.cpp | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/tests/manual/rhi/rhiwidget/examplewidget.cpp b/tests/manual/rhi/rhiwidget/examplewidget.cpp deleted file mode 100644 index 942766ac5c..0000000000 --- a/tests/manual/rhi/rhiwidget/examplewidget.cpp +++ /dev/null @@ -1,182 +0,0 @@ -// Copyright (C) 2021 The Qt Company Ltd. -// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause - -#include "examplewidget.h" -#include "../shared/cube.h" -#include <QFile> -#include <QPainter> - -static const QSize CUBE_TEX_SIZE(512, 512); - -ExampleRhiWidget::ExampleRhiWidget(QWidget *parent, Qt::WindowFlags f) - : QRhiWidget(parent, f) -{ - setDebugLayer(true); -} - -void ExampleRhiWidget::initialize(QRhi *rhi, QRhiTexture *outputTexture) -{ - if (m_rhi != rhi) { - m_rt.reset(); - m_rp.reset(); - m_ds.reset(); - scene.vbuf.reset(); - } else if (m_output != outputTexture) { - m_rt.reset(); - m_rp.reset(); - } - - m_rhi = rhi; - m_output = outputTexture; - - if (!m_ds) { - m_ds.reset(m_rhi->newRenderBuffer(QRhiRenderBuffer::DepthStencil, m_output->pixelSize())); - m_ds->create(); - } else if (m_ds->pixelSize() != m_output->pixelSize()) { - m_ds->setPixelSize(m_output->pixelSize()); - m_ds->create(); - } - - if (!m_rt) { - m_rt.reset(m_rhi->newTextureRenderTarget({ { m_output }, m_ds.data() })); - m_rp.reset(m_rt->newCompatibleRenderPassDescriptor()); - m_rt->setRenderPassDescriptor(m_rp.data()); - m_rt->create(); - } - - if (!scene.vbuf) { - initScene(); - updateCubeTexture(); - } - - const QSize outputSize = m_output->pixelSize(); - scene.mvp = m_rhi->clipSpaceCorrMatrix(); - scene.mvp.perspective(45.0f, outputSize.width() / (float) outputSize.height(), 0.01f, 1000.0f); - scene.mvp.translate(0, 0, -4); - updateMvp(); -} - -void ExampleRhiWidget::updateMvp() -{ - QMatrix4x4 mvp = scene.mvp * QMatrix4x4(QQuaternion::fromEulerAngles(QVector3D(30, itemData.cubeRotation, 0)).toRotationMatrix()); - if (!scene.resourceUpdates) - scene.resourceUpdates = m_rhi->nextResourceUpdateBatch(); - scene.resourceUpdates->updateDynamicBuffer(scene.ubuf.data(), 0, 64, mvp.constData()); -} - -void ExampleRhiWidget::updateCubeTexture() -{ - QImage image(CUBE_TEX_SIZE, QImage::Format_RGBA8888); - const QRect r(QPoint(0, 0), CUBE_TEX_SIZE); - QPainter p(&image); - p.fillRect(r, QGradient::DeepBlue); - QFont font; - font.setPointSize(24); - p.setFont(font); - p.drawText(r, itemData.cubeText); - p.end(); - - if (!scene.resourceUpdates) - scene.resourceUpdates = m_rhi->nextResourceUpdateBatch(); - scene.resourceUpdates->uploadTexture(scene.cubeTex.data(), image); -} - -static QShader getShader(const QString &name) -{ - QFile f(name); - if (f.open(QIODevice::ReadOnly)) - return QShader::fromSerialized(f.readAll()); - - return QShader(); -} - -void ExampleRhiWidget::initScene() -{ - scene.vbuf.reset(m_rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(cube))); - scene.vbuf->create(); - - scene.resourceUpdates = m_rhi->nextResourceUpdateBatch(); - scene.resourceUpdates->uploadStaticBuffer(scene.vbuf.data(), cube); - - scene.ubuf.reset(m_rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 68)); - scene.ubuf->create(); - - const qint32 flip = 0; - scene.resourceUpdates->updateDynamicBuffer(scene.ubuf.data(), 64, 4, &flip); - - scene.cubeTex.reset(m_rhi->newTexture(QRhiTexture::RGBA8, CUBE_TEX_SIZE)); - scene.cubeTex->create(); - - scene.sampler.reset(m_rhi->newSampler(QRhiSampler::Linear, QRhiSampler::Linear, QRhiSampler::None, - QRhiSampler::ClampToEdge, QRhiSampler::ClampToEdge)); - scene.sampler->create(); - - scene.srb.reset(m_rhi->newShaderResourceBindings()); - scene.srb->setBindings({ - QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage, scene.ubuf.data()), - QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, scene.cubeTex.data(), scene.sampler.data()) - }); - scene.srb->create(); - - scene.ps.reset(m_rhi->newGraphicsPipeline()); - scene.ps->setDepthTest(true); - scene.ps->setDepthWrite(true); - scene.ps->setDepthOp(QRhiGraphicsPipeline::Less); - scene.ps->setCullMode(QRhiGraphicsPipeline::Back); - scene.ps->setFrontFace(QRhiGraphicsPipeline::CCW); - QShader vs = getShader(QLatin1String(":/texture.vert.qsb")); - Q_ASSERT(vs.isValid()); - QShader fs = getShader(QLatin1String(":/texture.frag.qsb")); - Q_ASSERT(fs.isValid()); - scene.ps->setShaderStages({ - { QRhiShaderStage::Vertex, vs }, - { QRhiShaderStage::Fragment, fs } - }); - QRhiVertexInputLayout inputLayout; - inputLayout.setBindings({ - { 3 * sizeof(float) }, - { 2 * sizeof(float) } - }); - inputLayout.setAttributes({ - { 0, 0, QRhiVertexInputAttribute::Float3, 0 }, - { 1, 1, QRhiVertexInputAttribute::Float2, 0 } - }); - scene.ps->setVertexInputLayout(inputLayout); - scene.ps->setShaderResourceBindings(scene.srb.data()); - scene.ps->setRenderPassDescriptor(m_rp.data()); - scene.ps->create(); -} - -void ExampleRhiWidget::render(QRhiCommandBuffer *cb) -{ - if (itemData.cubeRotationDirty) { - itemData.cubeRotationDirty = false; - updateMvp(); - } - - if (itemData.cubeTextDirty) { - itemData.cubeTextDirty = false; - updateCubeTexture(); - } - - QRhiResourceUpdateBatch *rub = scene.resourceUpdates; - if (rub) - scene.resourceUpdates = nullptr; - - const QColor clearColor = QColor::fromRgbF(0.4f, 0.7f, 0.0f, 1.0f); - - cb->beginPass(m_rt.data(), clearColor, { 1.0f, 0 }, rub); - - cb->setGraphicsPipeline(scene.ps.data()); - const QSize outputSize = m_output->pixelSize(); - cb->setViewport(QRhiViewport(0, 0, outputSize.width(), outputSize.height())); - cb->setShaderResources(); - const QRhiCommandBuffer::VertexInput vbufBindings[] = { - { scene.vbuf.data(), 0 }, - { scene.vbuf.data(), quint32(36 * 3 * sizeof(float)) } - }; - cb->setVertexInput(0, 2, vbufBindings); - cb->draw(36); - - cb->endPass(); -} |