[Build] Add Windows ARM64 support

Separates the `Windows` platform into `Windows-x86_64` and
`Windows-ARM64`. Adds `--arch` argument to `build`.
Removes x64 backend on non-x64 targets.

premake5.lua

@@ -54,7 +54,7 @@ filter("configurations:Checked")
   defines({
     "DEBUG",
   })
-filter({"configurations:Checked", "platforms:Windows"})
+filter({"configurations:Checked", "platforms:Windows-*"})
   buildoptions({
     "/RTCsu",           -- Full Run-Time Checks.
   })
@@ -153,7 +153,7 @@ filter("platforms:Android-*")
     "log",
   })
 
-filter("platforms:Windows")
+filter("platforms:Windows-*")
   system("windows")
   toolset("msc")
   buildoptions({
@@ -179,8 +179,12 @@ filter("platforms:Windows")
     "_CRT_SECURE_NO_WARNINGS",
     "WIN32",
     "_WIN64=1",
-    "_AMD64=1",
   })
+  filter("architecture:x86_64")
+    defines({
+      "_AMD64=1",
+    })
+  filter({})
   linkoptions({
     "/ignore:4006",  -- Ignores complaints about empty obj files.
     "/ignore:4221",
@@ -198,7 +202,7 @@ filter("platforms:Windows")
   })
 
 -- Embed the manifest for things like dependencies and DPI awareness.
-filter({"platforms:Windows", "kind:ConsoleApp or WindowedApp"})
+filter({"platforms:Windows-*", "kind:ConsoleApp or WindowedApp"})
   files({
     "src/xenia/base/app_win32.manifest"
   })
@@ -228,7 +232,12 @@ workspace("xenia")
         ["ARCHS"] = "x86_64"
       })
     elseif os.istarget("windows") then
-      platforms({"Windows"})
+      platforms({"Windows-ARM64", "Windows-x86_64"})
+      filter("platforms:Windows-ARM64")
+        architecture("ARM64")
+      filter("platforms:Windows-x86_64")
+        architecture("x86_64")
+      filter({})
       -- 10.0.15063.0: ID3D12GraphicsCommandList1::SetSamplePositions.
       -- 10.0.19041.0: D3D12_HEAP_FLAG_CREATE_NOT_ZEROED.
       -- 10.0.22000.0: DWMWA_WINDOW_CORNER_PREFERENCE.
@@ -284,7 +293,11 @@ workspace("xenia")
   include("src/xenia/apu/nop")
   include("src/xenia/base")
   include("src/xenia/cpu")
-  include("src/xenia/cpu/backend/x64")
+
+  filter("architecture:x86_64")
+    include("src/xenia/cpu/backend/x64")
+  filter({})
+
   include("src/xenia/debug/ui")
   include("src/xenia/gpu")
   include("src/xenia/gpu/null")

src/xenia/app/premake5.lua

@@ -78,7 +78,7 @@ project("xenia-app")
       "xenia_main.cc",
     })
 
-  filter("platforms:Windows")
+  filter("platforms:Windows-*")
     files({
       "main_resources.rc",
     })
@@ -104,7 +104,7 @@ project("xenia-app")
       "SDL2",
     })
 
-  filter("platforms:Windows")
+  filter("platforms:Windows-*")
     links({
       "xenia-apu-xaudio2",
       "xenia-gpu-d3d12",
@@ -113,13 +113,13 @@ project("xenia-app")
       "xenia-ui-d3d12",
     })
 
-  filter({"platforms:Windows", SINGLE_LIBRARY_FILTER})
+  filter({"platforms:Windows-*", SINGLE_LIBRARY_FILTER})
     links({
       "xenia-gpu-d3d12-trace-viewer",
       "xenia-ui-window-d3d12-demo",
     })
 
-  filter("platforms:Windows")
+  filter("platforms:Windows-*")
     -- Only create the .user file if it doesn't already exist.
     local user_file = project_root.."/build/xenia-app.vcxproj.user"
     if not os.isfile(user_file) then

src/xenia/cpu/ppc/testing/premake5.lua

@@ -27,7 +27,7 @@ project("xenia-cpu-ppc-tests")
     links({
       "xenia-cpu-backend-x64",
     })
-  filter("platforms:Windows")
+  filter("platforms:Windows-*")
     debugdir(project_root)
     debugargs({
       "2>&1",

src/xenia/gpu/premake5.lua

@@ -43,7 +43,7 @@ project("xenia-gpu-shader-compiler")
     "../base/console_app_main_"..platform_suffix..".cc",
   })
 
-  filter("platforms:Windows")
+  filter("platforms:Windows-*")
     -- Only create the .user file if it doesn't already exist.
     local user_file = project_root.."/build/xenia-gpu-shader-compiler.vcxproj.user"
     if not os.isfile(user_file) then

src/xenia/gpu/vulkan/premake5.lua

@@ -75,7 +75,7 @@ project("xenia-gpu-vulkan-trace-viewer")
       "X11-xcb",
     })
 
-  filter("platforms:Windows")
+  filter("platforms:Windows-*")
     -- Only create the .user file if it doesn't already exist.
     local user_file = project_root.."/build/xenia-gpu-vulkan-trace-viewer.vcxproj.user"
     if not os.isfile(user_file) then
@@ -138,7 +138,7 @@ project("xenia-gpu-vulkan-trace-dump")
       "X11-xcb",
     })
 
-  filter("platforms:Windows")
+  filter("platforms:Windows-*")
     -- Only create the .user file if it doesn't already exist.
     local user_file = project_root.."/build/xenia-gpu-vulkan-trace-dump.vcxproj.user"
     if not os.isfile(user_file) then

src/xenia/hid/premake5.lua

@@ -53,7 +53,7 @@ project("xenia-hid-demo")
       "X11-xcb",
     })
 
-  filter("platforms:Windows")
+  filter("platforms:Windows-*")
     links({
       "xenia-hid-winkey",
       "xenia-hid-xinput",

src/xenia/ui/premake5.lua

@@ -19,7 +19,7 @@ project("xenia-ui")
     -- Exports JNI functions.
     wholelib("On")
 
-  filter("platforms:Windows")
+  filter("platforms:Windows-*")
     links({
       "dwmapi",
       "dxgi",

third_party/SDL2.lua

@@ -26,7 +26,7 @@ end
 -- Call this function in project scope to include the SDL2 headers.
 --
 function sdl2_include()
-  filter("platforms:Windows")
+  filter("platforms:Windows-*")
     includedirs({
       path.getrelative(".", third_party_path) .. "/SDL2/include",
     })

third_party/discord-rpc.lua

@@ -30,7 +30,7 @@ project("discord-rpc")
     files({
       "discord-rpc/src/discord_register_osx.m"
     })
-  filter("platforms:Windows")
+  filter("platforms:Windows-*")
     files({
       "discord-rpc/src/connection_win.cpp",
       "discord-rpc/src/discord_register_win.cpp"

third_party/mspack.lua

@@ -28,7 +28,7 @@ project("mspack")
       "mspack/system.h",
   })
 
-  filter("platforms:Windows")
+  filter("platforms:Windows-*")
     defines({
     })
   filter("platforms:Linux")

third_party/snappy.lua

@@ -18,5 +18,5 @@ project("snappy")
     "snappy/snappy.h",
   })
 
-  filter("platforms:Windows")
+  filter("platforms:Windows-*")
     warnings("Off")  -- Too many warnings.

tools/build/scripts/platform_files.lua

@@ -20,7 +20,7 @@ local function match_platform_files(base_path, base_match)
   removefiles({base_path.."/".."**_android.h", base_path.."/".."**_android.cc"})
   removefiles({base_path.."/".."**_mac.h", base_path.."/".."**_mac.cc"})
   removefiles({base_path.."/".."**_win.h", base_path.."/".."**_win.cc"})
-  filter("platforms:Windows")
+  filter("platforms:Windows-*")
     files({
       base_path.."/"..base_match.."_win.h",
       base_path.."/"..base_match.."_win.cc",

xenia-build

@@ -781,6 +781,8 @@ class BaseBuildCommand(Command):
         self.parser.add_argument(
             '--target', action='append', default=[],
             help='Builds only the given target(s).')
+        self.parser.add_argument(
+            '--arch', default='x86_64', help='Builds only the given architecture')
         self.parser.add_argument(
             '--force', action='store_true',
             help='Forces a full rebuild.')
@@ -823,6 +825,7 @@ class BaseBuildCommand(Command):
                     '/m',
                     '/v:m',
                     '/p:Configuration=' + args['config'],
+                    '/p:Platform=' + "Windows-" + args['arch'],
                     ] + ([targets] if targets is not None else []) + pass_args,
                     shell=False)
         elif sys.platform == 'darwin':