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Libretro: keep Vulkan feature setup valid

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- Use VkPhysicalDeviceFeatures2 when supplied by PPSSPP
- Leave pEnabledFeatures null as Vulkan requires
This commit is contained in:
Matt Akins committed 2026-07-22 11:31:25 -07:00
1 parent 23d4c27f1c
commit a4f83785d9
1 file changed
+13 -8
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libretro/libretro_vulkan.cpp
+13 -8
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@@ -110,27 +110,32 @@ static VKAPI_ATTR VkResult VKAPI_CALL vkCreateDevice_libretro(VkPhysicalDevice p
newInfo.enabledExtensionCount = (uint32_t)enabledExtensionNames.size();
newInfo.ppEnabledExtensionNames = newInfo.enabledExtensionCount ? enabledExtensionNames.data() : nullptr;
// Then check for VkPhysicalDeviceFeatures2 chaining or pEnabledFeatures to enable required features. Note that when both
// structs are present Features2 takes precedence. vkCreateDevice parameters don't give us a simple way to detect
// VK_KHR_get_physical_device_properties2 usage so we'll always try both paths.
// Add required features through VkPhysicalDeviceFeatures2 when it is present.
// Vulkan requires pEnabledFeatures to be NULL in that case.
std::unordered_map<VkPhysicalDeviceFeatures *, VkPhysicalDeviceFeatures> originalFeaturePointers;
VkPhysicalDeviceFeatures placeholderEnabledFeatures{};
bool has_features2 = false;
for (const VkBaseOutStructure *next = (const VkBaseOutStructure *)pCreateInfo->pNext; next != nullptr;) {
if (next->sType == VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2) {
VkPhysicalDeviceFeatures *enabledFeatures = &((VkPhysicalDeviceFeatures2 *)next)->features;
originalFeaturePointers.try_emplace(enabledFeatures, *enabledFeatures);
has_features2 = true;
}
next = (const VkBaseOutStructure *)next->pNext;
}
if (newInfo.pEnabledFeatures) {
placeholderEnabledFeatures = *newInfo.pEnabledFeatures;
}
if (!has_features2) {
if (newInfo.pEnabledFeatures) {
placeholderEnabledFeatures = *newInfo.pEnabledFeatures;
}
newInfo.pEnabledFeatures = &placeholderEnabledFeatures;
originalFeaturePointers.try_emplace((VkPhysicalDeviceFeatures *)newInfo.pEnabledFeatures, *newInfo.pEnabledFeatures);
newInfo.pEnabledFeatures = &placeholderEnabledFeatures;
originalFeaturePointers.try_emplace((VkPhysicalDeviceFeatures *)newInfo.pEnabledFeatures, *newInfo.pEnabledFeatures);
} else {
newInfo.pEnabledFeatures = nullptr;
}
for (const auto& pair : originalFeaturePointers) {
for (uint32_t i = 0; i < sizeof(VkPhysicalDeviceFeatures) / sizeof(VkBool32); i++) {