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Metal: Skip nextDrawable for occluded windows. Fixes #3601. (#3732)

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This commit is contained in:
Branimir Karadžić
2026-06-06 21:07:47 -07:00
committed by GitHub
parent 2962f60576
commit 9dc9749b53
1 changed files with 40 additions and 1 deletions
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41
src/renderer_mtl.cpp
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@@ -3906,6 +3906,43 @@ static_assert(BX_COUNTOF(s_accessNames) == Access::Count, "Invalid s_accessNames
releaseBackBuffer();
}
static bool isWindowOccluded(void* _nwh)
{
#if BX_PLATFORM_OSX
if (NULL == _nwh)
{
return false;
}
Class nsWindowClass = objc_lookUpClass("NSWindow");
Class nsViewClass = objc_lookUpClass("NSView");
void* nsWindow = NULL;
if (NULL != nsWindowClass
&& MtlObjAccess::send<bool>(_nwh, sel_registerName("isKindOfClass:"), nsWindowClass) )
{
nsWindow = _nwh;
}
else if (NULL != nsViewClass
&& MtlObjAccess::send<bool>(_nwh, sel_registerName("isKindOfClass:"), nsViewClass) )
{
nsWindow = MtlObjAccess::send<void*>(_nwh, sel_registerName("window") );
}
if (NULL == nsWindow)
{
return false;
}
const uintptr_t occlusionState = MtlObjAccess::send<uintptr_t>(nsWindow, sel_registerName("occlusionState") );
return 0 == (occlusionState & (uintptr_t(1) << 1) );
#else
return false;
#endif // BX_PLATFORM_OSX
}
void SwapChainMtl::init(void* _nwh)
{
{
@@ -4171,7 +4208,9 @@ static_assert(BX_COUNTOF(s_accessNames) == Access::Count, "Invalid s_accessNames
{
if (NULL == m_drawableTexture)
{
m_drawable = m_metalLayer->nextDrawable();
const bool occluded = isWindowOccluded(m_nwh);
m_drawable = occluded ? NULL : m_metalLayer->nextDrawable();
if (m_drawable != NULL)
{