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[desktop] Restore metal layer search (#4033)
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This was cut out in #3916 by accident.

Signed-off-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4033
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crueter 2026-05-31 04:19:49 +02:00
parent 5f4a286046
commit bd2d344040
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GPG key ID: 425ACD2D4830EBC6
1 changed files with 30 additions and 1 deletions
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31
src/qt_common/qt_common.cpp
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@ -87,8 +87,37 @@ Core::Frontend::EmuWindow::WindowSystemInfo GetWindowSystemInfo(QWindow* window)
// Our Win32 Qt external doesn't have the private API.
wsi.render_surface = reinterpret_cast<void*>(window->winId());
#elif defined(__APPLE__)
wsi.render_surface = reinterpret_cast<void* (*)(id, SEL)>(objc_msgSend)(
id layer = reinterpret_cast<id (*)(id, SEL)>(objc_msgSend)(
reinterpret_cast<id>(window->winId()), sel_registerName("layer"));
// In Qt 6, the layer of the NSView might be a QContainerLayer.
// MoltenVK needs a CAMetalLayer. We search for it in sublayers.
Class metal_layer_class = objc_getClass("CAMetalLayer");
id metal_layer = nullptr;
if (layer) {
if (reinterpret_cast<bool (*)(id, SEL, Class)>(objc_msgSend)(
layer, sel_registerName("isKindOfClass:"), metal_layer_class)) {
metal_layer = layer;
} else {
id sublayers = reinterpret_cast<id (*)(id, SEL)>(objc_msgSend)(
layer, sel_registerName("sublayers"));
if (sublayers) {
unsigned long count = reinterpret_cast<unsigned long (*)(id, SEL)>(objc_msgSend)(
sublayers, sel_registerName("count"));
for (unsigned long i = 0; i < count; ++i) {
id sublayer = reinterpret_cast<id (*)(id, SEL, unsigned long)>(objc_msgSend)(
sublayers, sel_registerName("objectAtIndex:"), i);
if (reinterpret_cast<bool (*)(id, SEL, Class)>(objc_msgSend)(
sublayer, sel_registerName("isKindOfClass:"), metal_layer_class)) {
metal_layer = sublayer;
break;
}
}
}
}
}
wsi.render_surface = reinterpret_cast<void*>(metal_layer ? metal_layer : layer);
#else
QPlatformNativeInterface* pni = QGuiApplication::platformNativeInterface();
wsi.display_connection = pni->nativeResourceForWindow("display", window);