[idd] project: organize driver sources by responsibility

Group the IDD sources and Visual Studio filters by subsystem. Split the device and swap-chain implementations into focused units, rename the context classes, and reduce header coupling.
2026-08-09 08:41:31 +00:00 · 2026-08-07 14:38:36 +10:00
parent 3ddc199bec
commit 30a1383d5e
76 changed files with 5067 additions and 3923 deletions
--- a/idd/LGIdd/capture/CSwapChainCursor.cpp
+++ b/idd/LGIdd/capture/CSwapChainCursor.cpp
@@ -0,0 +1,122 @@
+/**
+ * Looking Glass
+ * Copyright © 2017-2026 The Looking Glass Authors
+ * https://looking-glass.io
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc., 59
+ * Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "capture/CSwapChainProcessor.h"
+
+#include "display/IddCxCompat.h"
+#include "display/device/CDeviceContext.h"
+#include "transport/CLGMPControl.h"
+
+#include "CDebug.h"
+
+DWORD CALLBACK CSwapChainProcessor::_CursorThread(LPVOID arg)
+{
+  reinterpret_cast<CSwapChainProcessor*>(arg)->CursorThread();
+  return 0;
+}
+
+bool CSwapChainProcessor::QueryHWCursor()
+{
+  IDARG_IN_QUERY_HWCURSOR in = {};
+  in.LastShapeId            = m_lastShapeId;
+  in.pShapeBuffer           = m_shapeBuffer;
+  in.ShapeBufferSizeInBytes = 512 * 512 * 4;
+
+  IDARG_OUT_QUERY_HWCURSOR out = {};
+  UINT cursorWhiteLevel = m_sdrWhiteLevel.load(std::memory_order_relaxed);
+  NTSTATUS status;
+#ifdef HAS_IDDCX_110
+  if (m_devContext->HasIddCx110DDIs())
+  {
+    IDARG_OUT_QUERY_HWCURSOR3 out3 = {};
+    status = IddCxMonitorQueryHardwareCursor3(m_monitor, &in, &out3);
+    out.IsCursorVisible      = out3.IsCursorVisible;
+    out.X                    = out3.X;
+    out.Y                    = out3.Y;
+    out.IsCursorShapeUpdated = out3.IsCursorShapeUpdated;
+    out.CursorShapeInfo      = out3.CursorShapeInfo;
+    if (out3.SdrWhiteLevel)
+      cursorWhiteLevel = out3.SdrWhiteLevel;
+  }
+  else
+#endif
+  {
+    status = IddCxMonitorQueryHardwareCursor(m_monitor, &in, &out);
+  }
+
+  if (FAILED(status))
+  {
+    // this occurs if the display went away (ie, screen blanking or disabled)
+    if (status == STATUS_GRAPHICS_PATH_NOT_IN_TOPOLOGY)
+    {
+      SetEvent(m_terminateEvent.Get());
+      return false;
+    }
+
+    DEBUG_ERROR("IddCxMonitorQueryHardwareCursor failed (0x%08x)", status);
+    return false;
+  }
+
+  if (out.IsCursorShapeUpdated)
+    m_lastShapeId = out.CursorShapeInfo.ShapeId;
+
+  m_control.SendCursor(out, m_shapeBuffer, cursorWhiteLevel);
+  return true;
+}
+
+void CSwapChainProcessor::CursorThread()
+{
+  HRESULT hr = 0;
+  bool running = true;
+
+  while (running)
+  {
+    HANDLE waitHandles[] =
+    {
+      m_cursorDataEvent.Get(),
+      m_terminateEvent.Get()
+    };
+
+    DWORD waitResult = WaitForMultipleObjects(
+      ARRAYSIZE(waitHandles), waitHandles, FALSE, 100);
+
+    switch (waitResult)
+    {
+    case WAIT_TIMEOUT:
+      continue;
+
+      // cursorDataEvent
+    case WAIT_OBJECT_0:
+      if (!QueryHWCursor())
+        return;
+      continue;
+
+      // terminateEvent
+    case WAIT_OBJECT_0 + 1:
+      running = false;
+      continue;
+
+    default:
+      hr = HRESULT_FROM_WIN32(waitResult);
+      DEBUG_ERROR_HR(hr, "WaitForMultipleObjects");
+      return;
+    }
+  }
+}