1 files changed, 116 insertions, 0 deletions
diff --git a/tests/manual/graphicsframecapture/examplewindow.cpp b/tests/manual/graphicsframecapture/examplewindow.cpp
new file mode 100644
index 0000000000..6bc49a81ce
--- /dev/null
+++ b/tests/manual/graphicsframecapture/examplewindow.cpp
@@ -0,0 +1,116 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#include "examplewindow.h"
+#include <QFile>
+#include <rhi/qshader.h>
+
+static float vertexData[] = {
+    // Y up (note clipSpaceCorrMatrix in m_proj), CCW
+     -0.5f,   0.5f,   1.0f, 0.0f, 0.0f,
+     -0.5f,  -0.5f,   1.0f, 0.0f, 0.0f,
+     0.5f,  0.5f,   1.0f, 0.0f, 0.0f,
+
+     0.5f,  0.5f,   1.0f, 0.0f, 0.0f,
+     -0.5f,  -0.5f,   1.0f, 0.0f, 0.0f,
+     0.5f,  -0.5f,   1.0f, 0.0f, 0.0f,
+};
+
+ExampleWindow::ExampleWindow(QRhi::Implementation graphicsApi)
+    : Window(graphicsApi)
+{
+}
+
+QShader ExampleWindow::getShader(const QString &name)
+{
+    QFile f(name);
+    if (f.open(QIODevice::ReadOnly))
+        return QShader::fromSerialized(f.readAll());
+
+    return QShader();
+}
+
+void ExampleWindow::customInit()
+{
+    m_vbuf.reset(m_rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(vertexData)));
+    m_vbuf->create();
+    m_vbufReady = false;
+
+    m_ubuf.reset(m_rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 68));
+    m_ubuf->create();
+
+    m_srb.reset(m_rhi->newShaderResourceBindings());
+    m_srb->setBindings({
+            QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage,
+                                                     m_ubuf.get())
+    });
+    m_srb->create();
+
+    m_ps.reset(m_rhi->newGraphicsPipeline());
+
+    QRhiGraphicsPipeline::TargetBlend premulAlphaBlend;
+    premulAlphaBlend.enable = true;
+    m_ps->setTargetBlends({ premulAlphaBlend });
+
+    const QShader vs = getShader(QLatin1String(":/color.vert.qsb"));
+    if (!vs.isValid())
+        qFatal("Failed to load shader pack (vertex)");
+    const QShader fs = getShader(QLatin1String(":/color.frag.qsb"));
+    if (!fs.isValid())
+        qFatal("Failed to load shader pack (fragment)");
+
+    m_ps->setShaderStages({
+        { QRhiShaderStage::Vertex, vs },
+        { QRhiShaderStage::Fragment, fs }
+    });
+
+    QRhiVertexInputLayout inputLayout;
+    inputLayout.setBindings({
+        { 5 * sizeof(float) }
+    });
+    inputLayout.setAttributes({
+        { 0, 0, QRhiVertexInputAttribute::Float2, 0 },
+        { 0, 1, QRhiVertexInputAttribute::Float3, 2 * sizeof(float) }
+    });
+
+    m_ps->setVertexInputLayout(inputLayout);
+    m_ps->setShaderResourceBindings(m_srb.get());
+    m_ps->setRenderPassDescriptor(m_rp.get());
+
+    m_ps->create();
+}
+
+// called once per frame
+void ExampleWindow::customRender()
+{
+    QRhiResourceUpdateBatch *u = m_rhi->nextResourceUpdateBatch();
+    if (!m_vbufReady) {
+        m_vbufReady = true;
+        u->uploadStaticBuffer(m_vbuf.get(), vertexData);
+    }
+    m_rotation += 1.0f;
+    QMatrix4x4 mvp = m_proj;
+    mvp.rotate(m_rotation, 0, 0, 1);
+    u->updateDynamicBuffer(m_ubuf.get(), 0, 64, mvp.constData());
+    m_opacity += m_opacityDir * 0.005f;
+    if (m_opacity < 0.0f || m_opacity > 1.0f) {
+        m_opacityDir *= -1;
+        m_opacity = qBound(0.0f, m_opacity, 1.0f);
+    }
+    u->updateDynamicBuffer(m_ubuf.get(), 64, 4, &m_opacity);
+
+    QRhiCommandBuffer *cb = m_sc->currentFrameCommandBuffer();
+    const QSize outputSizeInPixels = m_sc->currentPixelSize();
+
+    cb->beginPass(m_sc->currentFrameRenderTarget(), QColor::fromRgbF(0.0f, 0.0f, 0.0f, 1.0f), { 1.0f, 0 }, u);
+
+    cb->setGraphicsPipeline(m_ps.get());
+    cb->setViewport({ 0, 0, float(outputSizeInPixels.width()), float(outputSizeInPixels.height()) });
+    cb->setShaderResources();
+
+    const QRhiCommandBuffer::VertexInput vbufBinding(m_vbuf.get(), 0);
+    cb->setVertexInput(0, 1, &vbufBinding);
+    cb->draw(6);
+
+    cb->endPass();
+}