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[d3d8] Validate viewport dimensions on SetViewport

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WinterSnowfall 2024-09-08 00:56:18 +03:00 committed by Robin Kertels
parent 903f1af176
commit 8e03b64ca4
1 changed files with 16 additions and 0 deletions
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16
src/d3d8/d3d8_device.cpp
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@ -926,6 +926,22 @@ namespace dxvk {
}
HRESULT STDMETHODCALLTYPE D3D8Device::SetViewport(const D3DVIEWPORT8* pViewport) {
if (likely(pViewport != nullptr)) {
// we need a valid render target to validate the viewport
if (unlikely(m_renderTarget == nullptr))
return D3DERR_INVALIDCALL;
D3DSURFACE_DESC rtDesc;
HRESULT res = m_renderTarget->GetDesc(&rtDesc);
// D3D8 will fail when setting a viewport that's outside of the
// current render target, although this apparently works in D3D9
if (likely(SUCCEEDED(res)) &&
unlikely(pViewport->X + pViewport->Width > rtDesc.Width ||
pViewport->Y + pViewport->Height > rtDesc.Height))
return D3DERR_INVALIDCALL;
}
StateChange();
return GetD3D9()->SetViewport(reinterpret_cast<const d3d9::D3DVIEWPORT9*>(pViewport));
}