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wrapper: preserve native Turnip subgroup capabilities for vkd3d #57

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wrapper: preserve native Turnip subgroup capabilities for vkd3d #57

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9 changes: 9 additions & 0 deletions src/vulkan/wrapper/wrapper_physical_device.c
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Original file line number Diff line number Diff line change
Expand Up @@ -856,6 +856,11 @@ wrapper_GetPhysicalDeviceProperties2(VkPhysicalDevice physicalDevice,

const char *eng = pdevice->instance->vk.app_info.engine_name;
bool is_d3d = eng && (strstr(eng, "DXVK") || strstr(eng, "vkd3d"));
/* vkd3d derives WaveOps and shader model support from these properties.
* Preserve Turnip's native answers, without advertising extra operations
* or changing the subgroup workaround for other drivers and clients. */
bool keep_subgroups = eng && strstr(eng, "vkd3d") &&
pdevice->driver_properties.driverID == VK_DRIVER_ID_MESA_TURNIP;

char *device_name_env = getenv("WRAPPER_DEVICE_NAME");
asprintf(&device_name, "Wrapper(%s)", (device_name_env) ? device_name_env : pProperties->properties.deviceName);
Expand Down Expand Up @@ -967,6 +972,8 @@ wrapper_GetPhysicalDeviceProperties2(VkPhysicalDevice physicalDevice,
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_1_PROPERTIES:
{
if (keep_subgroups)
break;
VkPhysicalDeviceVulkan11Properties *vk11_prop =
(VkPhysicalDeviceVulkan11Properties *)prop;
vk11_prop->subgroupSupportedOperations = 0;
Expand Down Expand Up @@ -1033,6 +1040,8 @@ wrapper_GetPhysicalDeviceProperties2(VkPhysicalDevice physicalDevice,
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SUBGROUP_PROPERTIES:
{
if (keep_subgroups)
break;
VkPhysicalDeviceSubgroupProperties *subgroup_prop =
(VkPhysicalDeviceSubgroupProperties *)prop;
subgroup_prop->supportedOperations = 0;
Expand Down
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