Initial commit

2020-09-20 12:16:44 +00:00
parent 09a4460ddb
commit 408c005d3e
839 changed files with 190481 additions and 0 deletions
--- a/win/rfb_win32/SDisplayCorePolling.cxx
+++ b/win/rfb_win32/SDisplayCorePolling.cxx
@@ -0,0 +1,82 @@
+/* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
+ * 
+ * This 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 software 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 software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+// -=- SDisplayCorePolling.cxx
+
+#include <rfb_win32/SDisplayCorePolling.h>
+#include <rfb/LogWriter.h>
+#include <rfb/util.h>
+
+using namespace rfb;
+using namespace rfb::win32;
+
+static LogWriter vlog("SDisplayCorePolling");
+
+const int POLLING_SEGMENTS = 16;
+
+const unsigned int SDisplayCorePolling::pollTimerId = 1;
+
+SDisplayCorePolling::SDisplayCorePolling(SDisplay* d, UpdateTracker* ut, int pollInterval_)
+  : MsgWindow(_T("rfb::win32::SDisplayCorePolling")), 
+  pollTimer(getHandle(), pollTimerId), pollNextStrip(false), display(d), updateTracker(ut) {
+  pollInterval = __rfbmax(10, (pollInterval_ / POLLING_SEGMENTS));
+  copyrect.setUpdateTracker(ut);
+}
+
+SDisplayCorePolling::~SDisplayCorePolling() {
+}
+
+LRESULT SDisplayCorePolling::processMessage(UINT msg, WPARAM wParam, LPARAM lParam) {
+  if (msg == WM_TIMER && wParam == pollTimerId) {
+    pollNextStrip = true;
+    SetEvent(display->getUpdateEvent());
+    return 0;
+  }
+  return MsgWindow::processMessage(msg, wParam, lParam);
+}
+
+void SDisplayCorePolling::setScreenRect(const Rect& screenRect_) {
+  vlog.info("setScreenRect");
+  screenRect = screenRect_;
+  pollIncrementY = (screenRect.height()+POLLING_SEGMENTS-1)/POLLING_SEGMENTS;
+  pollNextY = screenRect.tl.y;
+  pollTimer.start(pollInterval);
+}
+
+void SDisplayCorePolling::flushUpdates() {
+  vlog.write(120, "flushUpdates");
+
+  // Check for window movement
+  while (copyrect.processEvent()) {}
+
+  if (pollNextStrip) {
+    // Poll the next strip of the screen (in Screen coordinates)
+    pollNextStrip = false;
+    Rect pollrect = screenRect;
+    if (pollNextY >= pollrect.br.y) {
+      // Yes.  Reset the counter and return
+      pollNextY = pollrect.tl.y;
+    } else {
+      // No.  Poll the next section
+      pollrect.tl.y = pollNextY;
+      pollNextY += pollIncrementY;
+      pollrect.br.y = __rfbmin(pollNextY, pollrect.br.y);
+      updateTracker->add_changed(pollrect);
+    }
+  }
+}