[util] Set thread names for DXVK's own threads

Makes it easier to identify the command stream thread and the
queue processing thread easier when using a wine build that
supports SetThreadDescription.

src/dxvk/dxvk_cs.cpp

@@ -72,6 +72,8 @@ namespace dxvk {
   
   
   void DxvkCsThread::threadFunc() {
+    env::setThreadName(L"dxvk-cs");
+
     Rc<DxvkCsChunk> chunk;
     
     while (!m_stopped.load()) {

src/dxvk/dxvk_pipecompiler.cpp

@@ -40,8 +40,7 @@ namespace dxvk {
   
   
   void DxvkPipelineCompiler::runCompilerThread(uint32_t workerId) {
-    Logger::debug(str::format(
-      "DxvkPipelineCompiler: Worker #", workerId, " started"));
+    env::setThreadName(L"dxvk-pcompiler");
     
     while (!m_compilerStop.load()) {
       PipelineEntry entry;
@@ -62,9 +61,6 @@ namespace dxvk {
       if (entry.pipeline != nullptr && entry.instance != nullptr)
         entry.pipeline->compileInstance(entry.instance);
     }
-    
-    Logger::debug(str::format(
-      "DxvkPipelineCompiler: Worker #", workerId, " stopped"));
   }
   
 }

src/dxvk/dxvk_queue.cpp

@@ -35,6 +35,8 @@ namespace dxvk {
   
   
   void DxvkSubmissionQueue::threadFunc() {
+    env::setThreadName(L"dxvk-queue");
+
     while (!m_stopped.load()) {
       Rc<DxvkCommandList> cmdList;
       

src/util/util_env.cpp

@@ -50,5 +50,21 @@ namespace dxvk::env {
     
     return str::fromws(dxvkTempDir);
   }
+
+
+  void setThreadName(const wchar_t* name) {
+    using SetThreadDescriptionProc = void (WINAPI *) (HANDLE, PCWSTR);
+
+    HMODULE module = ::GetModuleHandleW(L"kernel32.dll");
+
+    if (module == nullptr)
+      return;
+
+    auto proc = reinterpret_cast<SetThreadDescriptionProc>(
+      ::GetProcAddress(module, "SetThreadDescription"));
+
+    if (proc != nullptr)
+      (*proc)(::GetCurrentThread(), name);
+  }
   
 }

src/util/util_env.h

@@ -33,5 +33,11 @@ namespace dxvk::env {
    * \returns Temporary directory
    */
   std::string getTempDirectory();
+
+  /**
+   * \brief Sets name of the calling thread
+   * \param [in] name Thread name
+   */
+  void setThreadName(const wchar_t* name);
   
 }