[PATCH v4] winevulkan: Create JSON manifest and registry entry used by official Vulkan loader.

[Brendan Shanks]

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=47109
Signed-off-by: Brendan Shanks <bshanks at codeweavers.com>
---
v4: Rebase on latest Vulkan 1.2.134 commits, and use the new
VK_HEADER_VERSION_COMPLETE #define rather than adding our own.

 dlls/winevulkan/Makefile.in     |  2 +-
 dlls/winevulkan/make_vulkan     |  3 ++
 dlls/winevulkan/vulkan.c        | 83 +++++++++++++++++++++++++++++++++
 dlls/winevulkan/winevulkan.spec |  2 +
 loader/wine.inf.in              |  1 +
 5 files changed, 90 insertions(+), 1 deletion(-)

diff --git a/dlls/winevulkan/Makefile.in b/dlls/winevulkan/Makefile.in
index e0bca6fad7..2ffff40c3a 100644
--- a/dlls/winevulkan/Makefile.in
+++ b/dlls/winevulkan/Makefile.in
@@ -1,6 +1,6 @@
 MODULE    = winevulkan.dll
 IMPORTLIB = winevulkan
-IMPORTS   = user32 gdi32
+IMPORTS   = user32 gdi32 advapi32
 
 C_SRCS = \
 	vulkan.c \
diff --git a/dlls/winevulkan/make_vulkan b/dlls/winevulkan/make_vulkan
index e0b94a06cb..bccfa6a6d6 100755
--- a/dlls/winevulkan/make_vulkan
+++ b/dlls/winevulkan/make_vulkan
@@ -2509,6 +2509,9 @@ class VkGenerator(object):
             else:
                 f.write("@ stub {0}\n".format(func.name))
 
+        f.write("@ stdcall -private DllRegisterServer()\n")
+        f.write("@ stdcall -private DllUnregisterServer()\n")
+
     def generate_vulkan_loader_spec(self, f):
         self._generate_copyright(f, spec_file=True)
 
diff --git a/dlls/winevulkan/vulkan.c b/dlls/winevulkan/vulkan.c
index 59472bcef8..5c5cde3649 100644
--- a/dlls/winevulkan/vulkan.c
+++ b/dlls/winevulkan/vulkan.c
@@ -21,6 +21,7 @@
 
 #include "windef.h"
 #include "winbase.h"
+#include "winreg.h"
 #include "winuser.h"
 
 #include "vulkan_private.h"
@@ -1307,3 +1308,85 @@ void *native_vkGetInstanceProcAddrWINE(VkInstance instance, const char *name)
 {
     return vk_funcs->p_vkGetInstanceProcAddr(instance, name);
 }
+
+
+static const WCHAR winevulkan_jsonW[] = {'\\','w','i','n','e','v','u','l','k','a','n','.','j','s','o','n',0};
+static const WCHAR vulkan_driversW[] = {'S','o','f','t','w','a','r','e','\\','K','h','r','o','n','o','s','\\',
+                                        'V','u','l','k','a','n','\\','D','r','i','v','e','r','s',0};
+static BOOL writestr(HANDLE handle, const char *str)
+{
+    DWORD written;
+    return WriteFile(handle, str, strlen(str), &written, NULL);
+}
+
+HRESULT WINAPI DllRegisterServer(void)
+{
+    WCHAR path[MAX_PATH];
+    char vk_version[20];
+    HANDLE file;
+    LRESULT result;
+    HKEY key;
+    DWORD zero = 0;
+
+    /* Create the JSON manifest and registry key to register this ICD with the official Vulkan loader. */
+    TRACE("\n");
+    GetSystemDirectoryW(path, ARRAY_SIZE(path));
+    lstrcatW(path, winevulkan_jsonW);
+    file = CreateFileW(path, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+    if (file == INVALID_HANDLE_VALUE)
+        { ERR("Unable to create JSON manifest.\n"); return E_UNEXPECTED; }
+
+    snprintf(vk_version, sizeof(vk_version), "%u.%u.%u",
+             VK_VERSION_MAJOR(VK_HEADER_VERSION_COMPLETE),
+             VK_VERSION_MINOR(VK_HEADER_VERSION_COMPLETE),
+             VK_VERSION_PATCH(VK_HEADER_VERSION_COMPLETE));
+
+    writestr(file, "{\r\n");
+    writestr(file, "    \"file_format_version\": \"1.0.0\",\r\n");
+    writestr(file, "    \"ICD\": {\r\n");
+    writestr(file, "        \"library_path\": \"winevulkan.dll\",\r\n");
+    writestr(file, "        \"api_version\": \"");
+    writestr(file, vk_version);
+    writestr(file, "\"\r\n");
+    writestr(file, "    }\r\n");
+    writestr(file, "}\r\n");
+    CloseHandle(file);
+
+    result = RegCreateKeyExW(HKEY_LOCAL_MACHINE, vulkan_driversW,
+                             0, NULL, 0, KEY_SET_VALUE, NULL, &key, NULL);
+    if (result != ERROR_SUCCESS)
+        { ERR("Unable to create registry key.\n"); return E_UNEXPECTED; }
+
+    result = RegSetValueExW(key, path, 0, REG_DWORD, (const BYTE *)&zero, sizeof(zero));
+    if (result != ERROR_SUCCESS)
+        { ERR("Unable to set registry value.\n"); return E_UNEXPECTED; }
+
+    RegCloseKey(key);
+    return S_OK;
+}
+
+HRESULT WINAPI DllUnregisterServer(void)
+{
+    WCHAR path[MAX_PATH];
+    LRESULT result;
+    HKEY key;
+
+    /* Remove the JSON manifest and registry key */
+    TRACE("\n");
+    GetSystemDirectoryW(path, ARRAY_SIZE(path));
+    lstrcatW(path, winevulkan_jsonW);
+    if (!DeleteFileW(path))
+        ERR("Unable to delete JSON file.\n");
+
+    result = RegOpenKeyExW(HKEY_LOCAL_MACHINE, vulkan_driversW,
+                           0, KEY_SET_VALUE, &key);
+    if (result != ERROR_SUCCESS)
+        { ERR("Unable to open registry key.\n"); return E_UNEXPECTED; }
+
+    result = RegDeleteValueW(key, path);
+    if (result != ERROR_SUCCESS)
+        ERR("Unable to delete registry key.\n");
+
+    RegCloseKey(key);
+    return S_OK;
+}
diff --git a/dlls/winevulkan/winevulkan.spec b/dlls/winevulkan/winevulkan.spec
index c02af5aeaa..e024a43586 100644
--- a/dlls/winevulkan/winevulkan.spec
+++ b/dlls/winevulkan/winevulkan.spec
@@ -239,3 +239,5 @@
 @ stdcall -private wine_vkUpdateDescriptorSets(ptr long ptr long ptr)
 @ stdcall -private wine_vkWaitForFences(ptr long ptr long int64)
 @ stdcall -private wine_vkWaitSemaphores(ptr ptr int64)
+@ stdcall -private DllRegisterServer()
+@ stdcall -private DllUnregisterServer()
diff --git a/loader/wine.inf.in b/loader/wine.inf.in
index 6e0cb21253..d0b156eb77 100644
--- a/loader/wine.inf.in
+++ b/loader/wine.inf.in
@@ -2569,6 +2569,7 @@ HKLM,%CurrentVersion%\Telephony\Country List\998,"SameAreaRule",,"G"
 11,,windowscodecs.dll,1
 11,,winegstreamer.dll,1
 11,,wineqtdecoder.dll,1
+11,,winevulkan.dll,1
 11,,wintrust.dll,1
 11,,iexplore.exe,1
 
-- 
2.24.1