modernize build system and toolchain

- unified MSVC toolchain migration (v143 → v145) with solution/tooling normalization
- Visual Studio solution alignment and project system cleanup (vcxproj/vcxproj.filters across client/server/missionchooser)
- artifact and output model standardization (intermediate/output layout, naming, linker path consistency)
- build pipeline modernization (robocopy-based deployment, structured pre/post build execution, normalized error handling)
- CI toolchain alignment (GitHub Actions upgrade: runner image, MSBuild integration, checkout/action modernization)
- client video subsystem dependency graph migration (VPX/WebM library replacement, legacy lib removal, vpx_tpl integration)
- ABI boundary stabilization for debug builds (conditional thunk resolution for MSVC debug symbol indirection to preserve legacy callsite assumptions under toolchain upgrade)
- cross-configuration library set segregation validation (Debug/Release/Profile VPX/WebM linking correctness enforcement)

Author: Kitsune44

.github/workflows/build.yaml

@@ -16,30 +16,30 @@ on:
 jobs:
   release:
     name: build release
-    runs-on: windows-2022
+    runs-on: windows-2025-vs2026
     timeout-minutes: 30
     steps:
       #checkout project
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       # setup msbuild
       - name: Add msbuild to PATH
-        uses: microsoft/setup-msbuild@v1.1
+        uses: microsoft/setup-msbuild@v2
 
       # missionchooser.dll
       - name: Build missionchooser.dll
         working-directory: src/game/missionchooser
-        run: MSBuild.exe swarm_sdk_missionchooser.vcxproj -property:Configuration=Release
+        run: MSBuild.exe swarm_sdk_missionchooser.vcxproj -property:Configuration=Release -property:Platform=Win32
 
       # server.dll
       - name: Build server.dll
         working-directory: src/game/server
-        run: MSBuild.exe swarm_sdk_server.vcxproj -property:Configuration=Release
+        run: MSBuild.exe swarm_sdk_server.vcxproj -property:Configuration=Release -property:Platform=Win32
 
       # client.dll
       - name: Build client.dll
         working-directory: src/game/client
-        run: MSBuild.exe swarm_sdk_client.vcxproj -property:Configuration=Release
+        run: MSBuild.exe swarm_sdk_client.vcxproj -property:Configuration=Release -property:Platform=Win32
 
       # store artifacts
       # make sure retention is low, this can become huge otherwise
@@ -54,30 +54,30 @@ jobs:
 
   debug:
     name: build debug
-    runs-on: windows-2022
+    runs-on: windows-2025-vs2026
     timeout-minutes: 30
     steps:
       #checkout project
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       # setup msbuild
       - name: Add msbuild to PATH
-        uses: microsoft/setup-msbuild@v1.1
+        uses: microsoft/setup-msbuild@v2
 
       # missionchooser.dll
       - name: Build missionchooser.dll
         working-directory: src/game/missionchooser
-        run: MSBuild.exe swarm_sdk_missionchooser.vcxproj -property:Configuration=Debug
+        run: MSBuild.exe swarm_sdk_missionchooser.vcxproj -property:Configuration=Debug -property:Platform=Win32
 
       # server.dll
       - name: Build server.dll
         working-directory: src/game/server
-        run: MSBuild.exe swarm_sdk_server.vcxproj -property:Configuration=Debug
+        run: MSBuild.exe swarm_sdk_server.vcxproj -property:Configuration=Debug -property:Platform=Win32
 
       # client.dll
       - name: Build client.dll
         working-directory: src/game/client
-        run: MSBuild.exe swarm_sdk_client.vcxproj -property:Configuration=Debug
+        run: MSBuild.exe swarm_sdk_client.vcxproj -property:Configuration=Debug -property:Platform=Win32
 
       # store artifacts
       # make sure retention is low, this can become huge otherwise

src/game/client/swarm/rd_tooltip_fix.cpp

@@ -26,7 +26,15 @@ static class CRD_Tooltip_Fix final : public CAutoGameSystem
 		// There's only one method in the vtable, so let's just grab it.
 		auto pApplySchemeSettings = **reinterpret_cast< void( vgui::Tooltip:: *const *const * )( vgui::IScheme * ) >( pTooltip );
 
-		byte *pRealFunc = *reinterpret_cast< byte *const * >( &pApplySchemeSettings );
+		#ifdef _DEBUG
+			// This is a thunk, so we need to grab the real one.
+			byte *pThunk = *reinterpret_cast<byte *const *>( &pApplySchemeSettings );
+			Assert( *pThunk == 0xE9 );
+			byte *pRealFunc = pThunk + 5 + *reinterpret_cast<const intptr_t *>( pThunk + 1 );
+		#else
+			// ...except in release builds, where it's not a thunk.
+			byte *pRealFunc = *reinterpret_cast<byte *const *>( &pApplySchemeSettings );
+		#endif
 		Assert( *pRealFunc == 0xB9 );
 
 		// Grab the TextEntry handle that is read at the start of the method.

src/game/client/swarm/vgui/rd_vgui_settings_video.cpp

@@ -92,6 +92,12 @@ static class CRD_VideoConfigVariableListHack : public CAutoGameSystem
 		// Instead, we have to do this garbage:
 		const byte *pUpdateCurrentVideoConfig = reinterpret_cast< const byte * >( &UpdateCurrentVideoConfig );
 
+		#ifdef _DEBUG
+			// Gotta deal with thunks on debug builds.
+			Assert( *pUpdateCurrentVideoConfig == 0xE9 );
+			pUpdateCurrentVideoConfig += 5 + *reinterpret_cast<const intptr_t *>( pUpdateCurrentVideoConfig + 1 );
+		#endif
+
 		struct VideoConfigSetting_t
 		{
 			const char *m_szName;

src/game/client/swarm_sdk_client.vcxproj

@@ -2262,7 +2262,16 @@
     <Library Include="videoservices\lib\win32\vorbis.lib">
       <Filter>videoservices\lib</Filter>
     </Library>
-    <Library Include="videoservices\lib\win32\vpxmt.lib">
+    <Library Include="videoservices\lib\win32\vpx_mt.lib">
+      <Filter>videoservices\lib</Filter>
+    </Library>
+    <Library Include="videoservices\lib\win32\webm_mt.lib">
+      <Filter>videoservices\lib</Filter>
+    </Library>
+    <Library Include="videoservices\lib\win32\debug\vpx_mtd.lib">
+      <Filter>videoservices\lib</Filter>
+    </Library>
+    <Library Include="videoservices\lib\win32\debug\webm_mtd.lib">
       <Filter>videoservices\lib</Filter>
     </Library>
   </ItemGroup>

src/game/client/swarm_sdk_client.vcxproj.filters

@@ -166,6 +166,7 @@ enum vp8e_enc_control_id {
    *
    * \note Valid range for VP8: -16..16
    * \note Valid range for VP9: -9..9
+   * \note A negative value (-n) is treated as its absolute value (n) in VP9.
    *
    * Supported in codecs: VP8, VP9
    */
@@ -302,7 +303,7 @@ enum vp8e_enc_control_id {
    * the feature is off, i.e., no golden frame boost in CBR mode and
    * average bitrate target is used.
    *
-   * For example, to allow 100% more bits, i.e, 2X, in a golden frame
+   * For example, to allow 100% more bits, i.e., 2X, in a golden frame
    * than average frame, set this to 100.
    *
    * Supported in codecs: VP9
@@ -598,7 +599,7 @@ enum vp8e_enc_control_id {
    * the feature is off, i.e., no golden frame boost in CBR mode and
    * average bitrate target is used.
    *
-   * For example, to allow 100% more bits, i.e, 2X, in a golden frame
+   * For example, to allow 100% more bits, i.e., 2X, in a golden frame
    * than average frame, set this to 100.
    *
    * Supported in codecs: VP8
@@ -672,7 +673,7 @@ enum vp8e_enc_control_id {
    */
   VP9E_SET_TPL,
 
-  /*!\brief Codec control function to enable postencode frame drop.
+  /*!\brief Codec control function to enable post encode frame drop.
    *
    * This will allow encoder to drop frame after it's encoded.
    *
@@ -767,6 +768,24 @@ enum vp8e_enc_control_id {
    *
    */
   VP9E_SET_QUANTIZER_ONE_PASS,
+
+  /*!\brief Codec control function to enable key frame temporal filtering.
+   *
+   * Vp9 allows the encoder to run key frame temporal filtering and use it to
+   * improve the compression performance. To enable, set this parameter to be
+   * 1. The default value is set to be 0.
+   */
+  VP9E_SET_KEY_FRAME_FILTERING,
+
+  /*!\brief Codec control function to validate HBD input.
+   *
+   * VP9 allows the encoder to validate the high bitdepth (HBD) input and
+   * ensure that every pixel is within the valid range. To disable/enable,
+   * set this parameter to 0/1. The default value is set to be 1.
+   *
+   * Supported in codecs: VP9
+   */
+  VP9E_SET_VALIDATE_HBD_INPUT,
 };
 
 /*!\brief vpx 1-D scaling mode
@@ -793,8 +812,7 @@ typedef enum vp9e_temporal_layering_mode {
   VP9E_TEMPORAL_LAYERING_MODE_NOLAYERING = 0,
 
   /*!\brief Bypass mode.
-   * Used when application needs to control temporal layering.
-   * This will only work when the number of spatial layers equals 1.
+   * Used when application needs to control spatial and temporal layering.
    */
   VP9E_TEMPORAL_LAYERING_MODE_BYPASS = 1,
 
@@ -868,7 +886,7 @@ typedef enum {
   VP8_EIGHT_TOKENPARTITION = 3
 } vp8e_token_partitions;
 
-/*!brief VP9 encoder content type */
+/*!\brief VP9 encoder content type */
 typedef enum {
   VP9E_CONTENT_DEFAULT,
   VP9E_CONTENT_SCREEN,
@@ -1097,6 +1115,10 @@ VPX_CTRL_USE_TYPE(VP8E_SET_RTC_EXTERNAL_RATECTRL, int)
 #define VPX_CTRL_VP8E_SET_RTC_EXTERNAL_RATECTRL
 VPX_CTRL_USE_TYPE(VP9E_SET_QUANTIZER_ONE_PASS, int)
 #define VPX_CTRL_VP9E_SET_QUANTIZER_ONE_PASS
+VPX_CTRL_USE_TYPE(VP9E_SET_KEY_FRAME_FILTERING, int)
+#define VPX_CTRL_VP9E_SET_KEY_FRAME_FILTERING
+VPX_CTRL_USE_TYPE(VP9E_SET_VALIDATE_HBD_INPUT, int)
+#define VPX_CTRL_VP9E_SET_VALIDATE_HBD_INPUT
 
 /*!\endcond */
 /*! @} - end defgroup vp8_encoder */

src/game/client/videoservices/includes/vpx/vp8cx.h

@@ -50,7 +50,7 @@ extern "C" {
 
 /*!\brief Decorator indicating a function is deprecated */
 #ifndef VPX_DEPRECATED
-#if defined(__GNUC__) && __GNUC__
+#if defined(__GNUC__)
 #define VPX_DEPRECATED __attribute__((deprecated))
 #elif defined(_MSC_VER)
 #define VPX_DEPRECATED
@@ -60,7 +60,7 @@ extern "C" {
 #endif /* VPX_DEPRECATED */
 
 #ifndef VPX_DECLSPEC_DEPRECATED
-#if defined(__GNUC__) && __GNUC__
+#if defined(__GNUC__)
 #define VPX_DECLSPEC_DEPRECATED /**< \copydoc #VPX_DEPRECATED */
 #elif defined(_MSC_VER)
 /*!\brief \copydoc #VPX_DEPRECATED */
@@ -318,19 +318,21 @@ const char *vpx_codec_err_to_string(vpx_codec_err_t err);
  * \param[in]    ctx     Pointer to this instance's context.
  *
  */
-const char *vpx_codec_error(vpx_codec_ctx_t *ctx);
+const char *vpx_codec_error(const vpx_codec_ctx_t *ctx);
 
 /*!\brief Retrieve detailed error information for codec context
  *
  * Returns a human readable string providing detailed information about
- * the last error.
+ * the last error. The returned string is only valid until the next
+ * vpx_codec_* function call (except vpx_codec_error and
+ * vpx_codec_error_detail) on the codec context.
  *
  * \param[in]    ctx     Pointer to this instance's context.
  *
  * \retval NULL
  *     No detailed information is available.
  */
-const char *vpx_codec_error_detail(vpx_codec_ctx_t *ctx);
+const char *vpx_codec_error_detail(const vpx_codec_ctx_t *ctx);
 
 /* REQUIRED FUNCTIONS
  *
@@ -345,9 +347,11 @@ const char *vpx_codec_error_detail(vpx_codec_ctx_t *ctx);
  * \param[in] ctx   Pointer to this instance's context
  *
  * \retval #VPX_CODEC_OK
- *     The codec algorithm initialized.
- * \retval #VPX_CODEC_MEM_ERROR
- *     Memory allocation failed.
+ *     The codec instance has been destroyed.
+ * \retval #VPX_CODEC_INVALID_PARAM
+ *     ctx is a null pointer.
+ * \retval #VPX_CODEC_ERROR
+ *     Codec context not initialized.
  */
 vpx_codec_err_t vpx_codec_destroy(vpx_codec_ctx_t *ctx);
 

src/game/client/videoservices/includes/vpx/vpx_codec.h

@@ -29,7 +29,7 @@
 extern "C" {
 #endif
 
-#include "./vpx_codec.h"
+#include "./vpx_codec.h"  // IWYU pragma: export
 #include "./vpx_frame_buffer.h"
 
 /*!\brief Current ABI version number
@@ -60,7 +60,7 @@ extern "C" {
 #define VPX_CODEC_CAP_INPUT_FRAGMENTS 0x100000
 /*!\brief Can support frame-based multi-threading */
 #define VPX_CODEC_CAP_FRAME_THREADING 0x200000
-/*!brief Can support external frame buffers */
+/*!\brief Can support external frame buffers */
 #define VPX_CODEC_CAP_EXTERNAL_FRAME_BUFFER 0x400000
 
 /*! \brief Initialization-time Feature Enabling
@@ -120,14 +120,18 @@ typedef struct vpx_codec_dec_cfg {
  * is not thread safe and should be guarded with a lock if being used
  * in a multithreaded context.
  *
+ * On success, vpx_codec_destroy() must be used to free resources allocated for
+ * the decoder context. If vpx_codec_dec_init_ver() fails, it is not necessary
+ * to call vpx_codec_destroy() on the decoder context.
+ *
  * \param[in]    ctx     Pointer to this instance's context.
  * \param[in]    iface   Pointer to the algorithm interface to use.
  * \param[in]    cfg     Configuration to use, if known. May be NULL.
  * \param[in]    flags   Bitfield of VPX_CODEC_USE_* flags
  * \param[in]    ver     ABI version number. Must be set to
  *                       VPX_DECODER_ABI_VERSION
  * \retval #VPX_CODEC_OK
- *     The decoder algorithm initialized.
+ *     The decoder algorithm has been initialized.
  * \retval #VPX_CODEC_MEM_ERROR
  *     Memory allocation failed.
  */
@@ -152,7 +156,7 @@ vpx_codec_err_t vpx_codec_dec_init_ver(vpx_codec_ctx_t *ctx,
  * \param[in]      iface   Pointer to the algorithm interface
  * \param[in]      data    Pointer to a block of data to parse
  * \param[in]      data_sz Size of the data buffer
- * \param[in,out]  si      Pointer to stream info to update. The size member
+ * \param[in,out]  si      Pointer to stream info to update. The sz member
  *                         \ref MUST be properly initialized, but \ref MAY be
  *                         clobbered by the algorithm. This parameter \ref MAY
  *                         be NULL.
@@ -170,7 +174,7 @@ vpx_codec_err_t vpx_codec_peek_stream_info(vpx_codec_iface_t *iface,
  * Returns information about the stream that has been parsed during decoding.
  *
  * \param[in]      ctx     Pointer to this instance's context
- * \param[in,out]  si      Pointer to stream info to update. The size member
+ * \param[in,out]  si      Pointer to stream info to update. The sz member
  *                         \ref MUST be properly initialized, but \ref MAY be
  *                         clobbered by the algorithm. This parameter \ref MAY
  *                         be NULL.
@@ -205,6 +209,8 @@ vpx_codec_err_t vpx_codec_get_stream_info(vpx_codec_ctx_t *ctx,
  *                         this frame.
  * \param[in] deadline     Soft deadline the decoder should attempt to meet,
  *                         in us. Set to zero for unlimited.
+ *                         NOTE: The deadline parameter is ignored. Always
+ *                         pass 0.
  *
  * \return Returns #VPX_CODEC_OK if the coded data was processed completely
  *         and future pictures can be decoded without error. Otherwise,