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Fix creating multisampled pipeline on dx12 backend

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Use the depthStencil format to check multisample support when the
pipeline doesn't have color attachments.

Fixes: QTBUG-131505
Change-Id: I8fec8383ed854a581586213e3dbd401bb457cefc
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
(cherry picked from commit f6d67ed9b760e87af3e032ea49e5babc6951ef91)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This commit is contained in:
Antti Määttä 2024-11-25 09:23:15 +02:00 committed by Qt Cherry-pick Bot
parent f2b7d064b0
commit f60fd291b5
1 changed files with 10 additions and 1 deletions
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11
src/gui/rhi/qrhid3d12.cpp
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@ -5668,7 +5668,16 @@ bool QD3D12GraphicsPipeline::create()
}
QD3D12RenderPassDescriptor *rpD = QRHI_RES(QD3D12RenderPassDescriptor, m_renderPassDesc);
const DXGI_SAMPLE_DESC sampleDesc = rhiD->effectiveSampleDesc(m_sampleCount, DXGI_FORMAT(rpD->colorFormat[0]));
DXGI_FORMAT format = DXGI_FORMAT_UNKNOWN;
if (rpD->colorAttachmentCount > 0) {
format = DXGI_FORMAT(rpD->colorFormat[0]);
} else if (rpD->hasDepthStencil) {
format = DXGI_FORMAT(rpD->dsFormat);
} else {
qWarning("Cannot create graphics pipeline state without color or depthStencil format");
return false;
}
const DXGI_SAMPLE_DESC sampleDesc = rhiD->effectiveSampleDesc(m_sampleCount, format);
struct {
QD3D12PipelineStateSubObject<ID3D12RootSignature *, D3D12_PIPELINE_STATE_SUBOBJECT_TYPE_ROOT_SIGNATURE> rootSig;