Commit 525be680 authored by Laszlo Agocs's avatar Laszlo Agocs

Add offscreen_vulkan example to demo image sequence generation

...in a console app.
parent 4c13d723
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#include <QGuiApplication>
#include <QLoggingCategory>
#include <QRhiVulkanInitParams>
int main(int argc, char **argv)
{
QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
QGuiApplication app(argc, argv);
QLoggingCategory::setFilterRules(QStringLiteral("qt.vulkan=true"));
QVulkanInstance inst;
#ifndef Q_OS_ANDROID
inst.setLayers(QByteArrayList() << "VK_LAYER_LUNARG_standard_validation");
#else
inst.setLayers(QByteArrayList()
<< "VK_LAYER_GOOGLE_threading"
<< "VK_LAYER_LUNARG_parameter_validation"
<< "VK_LAYER_LUNARG_object_tracker"
<< "VK_LAYER_LUNARG_core_validation"
<< "VK_LAYER_LUNARG_image"
<< "VK_LAYER_LUNARG_swapchain"
<< "VK_LAYER_GOOGLE_unique_objects");
#endif
if (!inst.create()) {
qWarning("Vulkan not supported");
return 1;
}
QRhiVulkanInitParams params;
params.inst = &inst;
QRhi *r = QRhi::create(QRhi::Vulkan, &params);
if (!r) {
qWarning("Failed to initialize RHI");
return 1;
}
QRhiTexture *tex = r->newTexture(QRhiTexture::RGBA8, QSize(1280, 720), QRhiTexture::RenderTarget);
tex->build();
QRhiTextureRenderTarget *rt = r->newTextureRenderTarget({ tex });
QRhiRenderPassDescriptor *rp = rt->newCompatibleRenderPassDescriptor();
rt->setRenderPassDescriptor(rp);
rt->build();
QRhiCommandBuffer *cb;
if (r->beginOffscreenFrame(&cb) == QRhi::FrameOpSuccess) {
qDebug("Generating offscreen frame");
r->beginPass(rt, cb, { 0, 1, 0, 1 }, { 1, 0 }, nullptr);
r->endPass(cb);
qDebug("Submit and wait");
r->endAndWaitOffscreenFrame();
}
rt->releaseAndDestroy();
rp->releaseAndDestroy();
tex->releaseAndDestroy();
delete r;
return 0;
}
TEMPLATE = app
CONFIG += console
QT += shadertools rhi
SOURCES = \
main.cpp
RESOURCES = offscreen_vulkan.qrc
target.path = $$[QT_INSTALL_EXAMPLES]/rhi/offscreen_vulkan
INSTALLS += target
<!DOCTYPE RCC><RCC version="1.0">
<qresource>
<file alias="color.vert.qsb">../shared/color.vert.qsb</file>
<file alias="color.frag.qsb">../shared/color.frag.qsb</file>
</qresource>
</RCC>
......@@ -8,7 +8,8 @@ SUBDIRS += \
qtConfig(vulkan) {
SUBDIRS += \
vulkanwindow \
plainqwindow_vulkan
plainqwindow_vulkan \
offscreen_vulkan
}
win32 {
......
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