[PATCH] winevulkan: Don't initialize the Vulkan driver in DllMain().
Brendan Shanks
bshanks at codeweavers.com
Fri Jun 26 18:21:54 CDT 2020
Fixes an issue where winevulkan would not be registered if no Vulkan
driver was present during prefix creation (such as in a build VM).
Signed-off-by: Brendan Shanks <bshanks at codeweavers.com>
---
As a side benefit, this also better matches the official Vulkan loader's
behavior (it never returns FALSE from DllMain:
https://github.com/KhronosGroup/Vulkan-Loader/blob/master/loader/loader.c#L7605)
VK_ERROR_INITIALIZATION_FAILED is what the official Windows loader
returns for vkCreateInstance() and vkEnumerateInstanceExtensionProperties()
when no ICDs are present.
Note that for vkEnumerateInstanceExtensionProperties(), VK_ERROR_INITIALIZATION_FAILED
is not listed in the spec as a possible return code.
I've opened an issue for the loader to get clarification:
https://github.com/KhronosGroup/Vulkan-Loader/issues/421
dlls/winevulkan/vulkan.c | 29 ++++++++++++++++++++++-------
1 file changed, 22 insertions(+), 7 deletions(-)
diff --git a/dlls/winevulkan/vulkan.c b/dlls/winevulkan/vulkan.c
index eb22e72ae36..d2da92cfa26 100644
--- a/dlls/winevulkan/vulkan.c
+++ b/dlls/winevulkan/vulkan.c
@@ -306,7 +306,7 @@ static void wine_vk_device_free(struct VkDevice_T *device)
heap_free(device);
}
-static BOOL wine_vk_init(void)
+static BOOL WINAPI wine_vk_init(INIT_ONCE *once, void *param, void **context)
{
HDC hdc;
@@ -314,16 +314,20 @@ static BOOL wine_vk_init(void)
vk_funcs = __wine_get_vulkan_driver(hdc, WINE_VULKAN_DRIVER_VERSION);
ReleaseDC(0, hdc);
if (!vk_funcs)
- {
ERR("Failed to load Wine graphics driver supporting Vulkan.\n");
- return FALSE;
- }
-
- p_vkEnumerateInstanceVersion = vk_funcs->p_vkGetInstanceProcAddr(NULL, "vkEnumerateInstanceVersion");
+ else
+ p_vkEnumerateInstanceVersion = vk_funcs->p_vkGetInstanceProcAddr(NULL, "vkEnumerateInstanceVersion");
return TRUE;
}
+static void wine_vk_init_once(void)
+{
+ static INIT_ONCE init_once = INIT_ONCE_STATIC_INIT;
+
+ InitOnceExecuteOnce(&init_once, wine_vk_init, NULL, NULL);
+}
+
/* Helper function for converting between win32 and host compatible VkInstanceCreateInfo.
* This function takes care of extensions handled at winevulkan layer, a Wine graphics
* driver is responsible for handling e.g. surface extensions.
@@ -653,6 +657,10 @@ VkResult WINAPI wine_vkCreateInstance(const VkInstanceCreateInfo *create_info,
TRACE("create_info %p, allocator %p, instance %p\n", create_info, allocator, instance);
+ wine_vk_init_once();
+ if (!vk_funcs)
+ return VK_ERROR_INITIALIZATION_FAILED;
+
if (allocator)
FIXME("Support for allocation callbacks not implemented yet\n");
@@ -779,6 +787,10 @@ VkResult WINAPI wine_vkEnumerateInstanceExtensionProperties(const char *layer_na
return VK_ERROR_LAYER_NOT_PRESENT;
}
+ wine_vk_init_once();
+ if (!vk_funcs)
+ return VK_ERROR_INITIALIZATION_FAILED;
+
res = vk_funcs->p_vkEnumerateInstanceExtensionProperties(NULL, &num_host_properties, NULL);
if (res != VK_SUCCESS)
return res;
@@ -847,6 +859,8 @@ VkResult WINAPI wine_vkEnumerateInstanceVersion(uint32_t *version)
TRACE("%p\n", version);
+ wine_vk_init_once();
+
if (p_vkEnumerateInstanceVersion)
{
res = p_vkEnumerateInstanceVersion(version);
@@ -1367,13 +1381,14 @@ BOOL WINAPI DllMain(HINSTANCE hinst, DWORD reason, void *reserved)
case DLL_PROCESS_ATTACH:
hinstance = hinst;
DisableThreadLibraryCalls(hinst);
- return wine_vk_init();
+ break;
}
return TRUE;
}
static const struct vulkan_func vk_global_dispatch_table[] =
{
+ /* These functions must call wine_vk_init_once() before accessing vk_funcs. */
{"vkCreateInstance", &wine_vkCreateInstance},
{"vkEnumerateInstanceExtensionProperties", &wine_vkEnumerateInstanceExtensionProperties},
{"vkEnumerateInstanceLayerProperties", &wine_vkEnumerateInstanceLayerProperties},
--
2.26.2
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