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D2D: Avoid crashing when attempting to create a vblank dispatcher on a headless system

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reuk 2025-08-27 18:09:23 +01:00
parent 9be03bc99e
commit a37b35ad15
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1 changed files with 17 additions and 10 deletions
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25
modules/juce_gui_basics/native/juce_VBlank_windows.cpp
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@ -102,6 +102,9 @@ public:
static HMONITOR getMonitorFromOutput (ComSmartPtr<IDXGIOutput> output) static HMONITOR getMonitorFromOutput (ComSmartPtr<IDXGIOutput> output)
{ {
if (output == nullptr)
return nullptr;
DXGI_OUTPUT_DESC desc = {}; DXGI_OUTPUT_DESC desc = {};
return (FAILED (output->GetDesc (&desc)) || ! desc.AttachedToDesktop) return (FAILED (output->GetDesc (&desc)) || ! desc.AttachedToDesktop)
? nullptr ? nullptr
@ -214,18 +217,22 @@ public:
for (const auto& adapter : directX->adapters.getAdapterArray()) for (const auto& adapter : directX->adapters.getAdapterArray())
{ {
UINT i = 0; for (UINT i = 0;; ++i)
{
ComSmartPtr<IDXGIOutput> output; ComSmartPtr<IDXGIOutput> output;
const auto result = adapter->dxgiAdapter->EnumOutputs (i, output.resetAndGetPointerAddress());
if (result == DXGI_ERROR_NOT_CURRENTLY_AVAILABLE)
break;
if (result == DXGI_ERROR_NOT_FOUND)
break;
if (VBlankThread::getMonitorFromOutput (output) != monitor)
continue;
while (adapter->dxgiAdapter->EnumOutputs (i, output.resetAndGetPointerAddress()) != DXGI_ERROR_NOT_FOUND)
{
if (VBlankThread::getMonitorFromOutput (output) == monitor)
{
threads.emplace_back (std::make_unique<VBlankThread> (output, monitor, listener)); threads.emplace_back (std::make_unique<VBlankThread> (output, monitor, listener));
return; break;
}
++i;
} }
} }
} }