Add CUDA matrix strategy and CUDA toolkit setup

.github/scripts/Package-Windows.ps1

@@ -48,7 +48,14 @@ function Package {
     $ProductName = $BuildSpec.name
     $ProductVersion = $BuildSpec.version
 
-    $OutputName = "${ProductName}-${ProductVersion}-windows-${Target}"
+    # check the CPU_OR_CUDA env variable to determine the target
+    if ( $Env:CPU_OR_CUDA -eq 'cpu' ) {
+        $cudaName = 'cpu'
+    } else {
+        $cudaName = "cuda${Env:CPU_OR_CUDA}"
+    }
+
+    $OutputName = "${ProductName}-${ProductVersion}-windows-${Target}-${cudaName}"
 
     if ( ! $SkipDeps ) {
         Install-BuildDependencies -WingetFile "${ScriptHome}/.Wingetfile"

.github/workflows/build-project.yaml

@@ -219,6 +219,9 @@ jobs:
     name: Build for Windows 🪟
     runs-on: windows-2022
     needs: check-event
+    strategy:
+      matrix:
+        cuda: [ 'cpu', '12.2.0', '11.8.0' ]
     defaults:
       run:
         shell: pwsh
@@ -248,13 +251,17 @@ jobs:
         with:
           target: x64
           config: ${{ needs.check-event.outputs.config }}
+        env:
+          CPU_OR_CUDA: ${{ matrix.cuda }}
 
       - name: Package Plugin 📀
         uses: ./.github/actions/package-plugin
         with:
           target: x64
           config: ${{ needs.check-event.outputs.config }}
           package: ${{ fromJSON(needs.check-event.outputs.package) }}
+        env:
+          CPU_OR_CUDA: ${{ matrix.cuda }}
 
       - name: Upload Artifacts 📡
         uses: actions/upload-artifact@v3

.github/workflows/push.yaml

@@ -75,7 +75,9 @@ jobs:
           commit_hash="${GITHUB_SHA:0:9}"
 
           variants=(
-            'windows-x64;zip|exe'
+            'windows-x64-cpu;zip|exe'
+            'windows-x64-cuda12.2.0;zip|exe'
+            'windows-x64-cuda11.8.0;zip|exe'
             'macos-universal;tar.xz|pkg'
             'ubuntu-22.04-x86_64;tar.xz|deb|ddeb'
             'sources;tar.xz'

buildspec.json

@@ -1,33 +1,33 @@
 {
     "dependencies": {
         "obs-studio": {
-            "version": "29.1.2",
+            "version": "29.1.3",
             "baseUrl": "https://github.com/obsproject/obs-studio/archive/refs/tags",
             "label": "OBS sources",
             "hashes": {
-                "macos": "215f1fa5772c5dd9f3d6e35b0cb573912b00320149666a77864f9d305525504b",
-                "windows-x64": "46d451f3f42b9d2c59339ec268165849c7b7904cdf1cc2a8d44c015815a9e37d"
+                "macos": "9D9CFBDBDD255F48A23FEEEFB60089769A65F52BBCA24FA31D74125F3BBB0E90",
+                "windows-x64": "965334470E447DC164801F8812D583260761521E6E3C5EBEE1DA7CD8F6EC4A95"
             }
         },
         "prebuilt": {
-            "version": "2023-04-12",
+            "version": "2023-06-22",
             "baseUrl": "https://github.com/obsproject/obs-deps/releases/download",
             "label": "Pre-Built obs-deps",
             "hashes": {
-                "macos": "9535c6e1ad96f7d49960251e85a245774088d48da1d602bb82f734b10219125a",
-                "windows-x64": "c13a14a1acc4224b21304d97b63da4121de1ed6981297e50496fbc474abc0503"
+                "macos": "a0d2e03f0ea79681634c31627430a220d9b62113d6ff58174d0bdab6fafdd32b",
+                "windows-x64": "1b12e86e2d62a97a889866d66b95fe47ddc6f7fa9b13e88aedfab4ea9e298ea2"
             }
         },
         "qt6": {
-            "version": "2023-04-12",
+            "version": "2023-06-22",
             "baseUrl": "https://github.com/obsproject/obs-deps/releases/download",
             "label": "Pre-Built Qt6",
             "hashes": {
-                "macos": "eb7614544ab4f3d2c6052c797635602280ca5b028a6b987523d8484222ce45d1",
-                "windows-x64": "4d39364b8a8dee5aa24fcebd8440d5c22bb4551c6b440ffeacce7d61f2ed1add"
+                "macos": "f890d258a1afa7ba409b79c8ee55d53155e5c72105b8b18a3f52047ee70fc0aa",
+                "windows-x64": "1907fbcbcef69527154b29316c425b0885afb77ad69a9a2af7a1471d79512195"
             },
             "debugSymbols": {
-                "windows-x64": "f34ee5067be19ed370268b15c53684b7b8aaa867dc800b68931df905d679e31f"
+                "windows-x64": "b461a7ade0c099505baea857fa5b98c4f8e9b702681be019ea354735d062e065"
             }
         }
     },
@@ -45,7 +45,7 @@
         }
     },
     "name": "obs-polyglot",
-    "version": "0.0.2",
+    "version": "0.0.3",
     "author": "Roy Shilkrot",
     "website": "https://github.com/occ-ai/obs-polyglot",
     "email": "[email protected]",

cmake/BuildCTranslate2.cmake

@@ -19,20 +19,45 @@ if(APPLE)
 
 elseif(WIN32)
 
-  FetchContent_Declare(
-    ctranslate2_fetch
-    URL https://github.com/occ-ai/obs-ai-ctranslate2-dep/releases/download/1.1.1/libctranslate2-windows-4.1.1-Release.zip
-    URL_HASH SHA256=aa87073e663e4dfbbc9b9360d83bed847212309bea433c3b1888a33a51cb0db0)
+  # check CPU_OR_CUDA environment variable
+  if(NOT DEFINED ENV{CPU_OR_CUDA})
+    message(FATAL_ERROR "Please set the CPU_OR_CUDA environment variable to either CPU or CUDA")
+  endif()
+
+  if($ENV{CPU_OR_CUDA} STREQUAL "cpu")
+    FetchContent_Declare(
+      ctranslate2_fetch
+      URL https://github.com/occ-ai/obs-ai-ctranslate2-dep/releases/download/1.2.0/libctranslate2-windows-4.1.1-Release-cpu.zip
+      URL_HASH SHA256=30ff8b2499b8d3b5a6c4d6f7f8ddbc89e745ff06e0050b645e3b7c9b369451a3)
+  else()
+    # add compile definitions for CUDA
+    add_compile_definitions(POLYGLOT_WITH_CUDA)
+    add_compile_definitions(POLYGLOT_CUDA_VERSION=$ENV{CPU_OR_CUDA})
+
+    if($ENV{CPU_OR_CUDA} STREQUAL "12.2.0")
+      FetchContent_Declare(
+        ctranslate2_fetch
+        URL https://github.com/occ-ai/obs-ai-ctranslate2-dep/releases/download/1.2.0/libctranslate2-windows-4.1.1-Release-cuda12.2.0.zip
+        URL_HASH SHA256=131724d510f9f2829970953a1bc9e4e8fb7b4cbc8218e32270dcfe6172a51558)
+    elseif($ENV{CPU_OR_CUDA} STREQUAL "11.8.0")
+      FetchContent_Declare(
+        ctranslate2_fetch
+        URL https://github.com/occ-ai/obs-ai-ctranslate2-dep/releases/download/1.2.0/libctranslate2-windows-4.1.1-Release-cuda11.8.0.zip
+        URL_HASH SHA256=a120bee82f821df35a4646add30ac18b5c23e4e16b56fa7ba338eeae336e0d81)
+    else()
+      message(FATAL_ERROR "Unsupported CUDA version: $ENV{CPU_OR_CUDA}")
+    endif()
+  endif()
+
   FetchContent_MakeAvailable(ctranslate2_fetch)
 
   add_library(ct2 INTERFACE)
   target_link_libraries(ct2 INTERFACE ${ctranslate2_fetch_SOURCE_DIR}/lib/ctranslate2.lib)
   set_target_properties(ct2 PROPERTIES INTERFACE_INCLUDE_DIRECTORIES ${ctranslate2_fetch_SOURCE_DIR}/include)
   target_compile_options(ct2 INTERFACE /wd4267 /wd4244 /wd4305 /wd4996 /wd4099)
 
-  install(FILES ${ctranslate2_fetch_SOURCE_DIR}/bin/ctranslate2.dll ${ctranslate2_fetch_SOURCE_DIR}/bin/libopenblas.dll
-          DESTINATION "obs-plugins/64bit")
-
+  file(GLOB CT2_DLLS ${ctranslate2_fetch_SOURCE_DIR}/bin/*.dll)
+  install(FILES ${CT2_DLLS} DESTINATION "obs-plugins/64bit")
 else()
   set(CT2_VERSION "4.1.1")
   set(CT2_URL "https://github.com/OpenNMT/CTranslate2.git")

src/translation-service/httpserver.cpp

@@ -21,6 +21,15 @@ void start_http_server()
 		}
 		global_context.svr = new httplib::Server();
 
+		global_context.svr->set_pre_routing_handler([](const httplib::Request &,
+							       httplib::Response &res) {
+			res.set_header("Access-Control-Allow-Origin", "*");
+			res.set_header("Access-Control-Allow-Methods", "GET, POST, OPTIONS");
+			res.set_header("Access-Control-Allow-Headers",
+				       "Content-Type, Authorization");
+			return httplib::Server::HandlerResponse::Unhandled;
+		});
+
 		// set an echo handler
 		global_context.svr->Post("/echo", [](const httplib::Request &req,
 						     httplib::Response &res,

src/translation-service/translation.cpp

@@ -38,9 +38,17 @@ int build_translation_context()
 
 		obs_log(LOG_INFO, "Loading CT2 model from %s",
 			global_config.local_model_path.c_str());
+
+#ifdef POLYGLOT_WITH_CUDA
+		ctranslate2::Device device = ctranslate2::Device::CUDA;
+		obs_log(LOG_INFO, "Using CUDA");
+#else
+		ctranslate2::Device device = ctranslate2::Device::CPU;
+		obs_log(LOG_INFO, "Using CPU");
+#endif
+
 		global_context.translator = new ctranslate2::Translator(
-			global_config.local_model_path, ctranslate2::Device::CPU,
-			ctranslate2::ComputeType::AUTO);
+			global_config.local_model_path, device, ctranslate2::ComputeType::AUTO);
 		obs_log(LOG_INFO, "CT2 Model loaded");
 
 		global_context.options = new ctranslate2::TranslationOptions;