#5186 Remove Dpi calculation code

src/gui/src/MainWindow.cpp

@@ -800,25 +800,6 @@ bool MainWindow::serverArgs(QStringList& args, QString& app)
 		args << "--serial-key" << appConfig().serialKey();
 	}
 
-#if defined(Q_OS_WIN)
-	// pass in physical resolution and primary screen center
-	// TODO: get this information in the core binary even when
-	// high DPI is used
-	int height = QApplication::desktop()->height();
-	int width = QApplication::desktop()->width();
-
-	QRect rec = QApplication::desktop()->screenGeometry();
-	int heightCenter = rec.height() / 2;
-	int widthCenter = rec.width() / 2;
-
-	appendLogDebug(tr("screen resolution: %1 %2 primary screen center: %3 %4")
-				   .arg(width).arg(height).arg(widthCenter).arg(heightCenter));
-
-	args << "--res-w" << QString::number(width);
-	args << "--res-h" << QString::number(height);
-	args << "--prm-wc" << QString::number(widthCenter);
-	args << "--prm-hc" << QString::number(heightCenter);
- #endif
 	return true;
 }
 

src/lib/platform/MSWindowsScreen.cpp

@@ -31,7 +31,6 @@
 #include "synergy/App.h"
 #include "synergy/ArgsBase.h"
 #include "synergy/ClientApp.h"
-#include "synergy/DpiHelper.h"
 #include "mt/Lock.h"
 #include "mt/Thread.h"
 #include "arch/win32/ArchMiscWindows.h"
@@ -146,10 +145,6 @@ MSWindowsScreen::MSWindowsScreen(
 							stopOnDeskSwitch);
 		m_keyState    = new MSWindowsKeyState(m_desks, getEventTarget(), m_events);
 
-		DpiHelper::calculateDpi(
-			GetSystemMetrics(SM_CXVIRTUALSCREEN),
-			GetSystemMetrics(SM_CYVIRTUALSCREEN));
-
 		updateScreenShape();
 		m_class       = createWindowClass();
 		m_window      = createWindow(m_class, "Synergy");
@@ -348,8 +343,7 @@ MSWindowsScreen::leave()
 
 		// warp to center
 		LOG((CLOG_DEBUG1 "warping cursor to center: %+d, %+d", m_xCenter, m_yCenter));
-		float dpi = DpiHelper::getDpi();
-		warpCursor(m_xCenter / dpi, m_yCenter / dpi);
+		warpCursor(m_xCenter, m_yCenter);
 
 		// disable special key sequences on win95 family
 		enableSpecialKeys(false);
@@ -1369,20 +1363,10 @@ MSWindowsScreen::onMouseButton(WPARAM wParam, LPARAM lParam)
 bool
 MSWindowsScreen::onMouseMove(SInt32 mx, SInt32 my)
 {
-	SInt32 originalMX = mx;
-	SInt32 originalMY = my;
-	float scaledMX = (float)mx;
-	float scaledMY = (float)my;
-
-	if (DpiHelper::s_dpiScaled) {
-		scaledMX /= DpiHelper::getDpi();
-		scaledMY /= DpiHelper::getDpi();
-	}
-
 	// compute motion delta (relative to the last known
 	// mouse position)
-	float x = scaledMX - m_xCursor;
-	float y = scaledMY - m_yCursor;
+	float x = (float)mx - m_xCursor;
+	float y = (float)my - m_yCursor;
 
 	LOG((CLOG_DEBUG3
 		"mouse move - motion delta: %+d=(%+d - %+d),%+d=(%+d - %+d)",
@@ -1395,14 +1379,14 @@ MSWindowsScreen::onMouseMove(SInt32 mx, SInt32 my)
 	}
 
 	// save position to compute delta of next motion
-	saveMousePosition((SInt32)scaledMX, (SInt32)scaledMY);
+	saveMousePosition(mx, my);
 
 	if (m_isOnScreen) {
 		
 		// motion on primary screen
 		sendEvent(
 			m_events->forIPrimaryScreen().motionOnPrimary(),
-			MotionInfo::alloc(originalMX, originalMY));
+			MotionInfo::alloc(m_xCursor, m_yCursor));
 
 		if (m_buttons[kButtonLeft] == true && m_draggingStarted == false) {
 			m_draggingStarted = true;
@@ -1415,19 +1399,18 @@ MSWindowsScreen::onMouseMove(SInt32 mx, SInt32 my)
 		// will always try to return to the original entry point on the 
 		// secondary screen.
 		LOG((CLOG_DEBUG5 "warping server cursor to center: %+d,%+d", m_xCenter, m_yCenter));
-		float dpi = DpiHelper::getDpi();
-		warpCursorNoFlush(m_xCenter / dpi, m_yCenter / dpi);
+		warpCursorNoFlush(m_xCenter, m_yCenter);
 		
 		// examine the motion.  if it's about the distance
 		// from the center of the screen to an edge then
 		// it's probably a bogus motion that we want to
 		// ignore (see warpCursorNoFlush() for a further
 		// description).
 		static SInt32 bogusZoneSize = 10;
-		if (-x + bogusZoneSize > (m_xCenter - m_x) / dpi ||
-			 x + bogusZoneSize > (m_x + m_w - m_xCenter) / dpi ||
-			-y + bogusZoneSize > (m_yCenter - m_y) / dpi ||
-			 y + bogusZoneSize > (m_y + m_h - m_yCenter) / dpi) {
+		if (-x + bogusZoneSize > m_xCenter - m_x ||
+			 x + bogusZoneSize > m_x + m_w - m_xCenter ||
+			-y + bogusZoneSize > m_yCenter - m_y ||
+			 y + bogusZoneSize > m_y + m_h - m_yCenter) {
 			
 			LOG((CLOG_DEBUG "dropped bogus delta motion: %+d,%+d", x, y));
 		}
@@ -1623,22 +1606,11 @@ void
 MSWindowsScreen::updateScreenShape()
 {
 	// get shape and center
-	if (DpiHelper::s_dpiScaled) {
-		// use the original resolution size for width and height
-		m_w = (SInt32)DpiHelper::s_resolutionWidth;
-		m_h = (SInt32)DpiHelper::s_resolutionHeight;
+	m_w = GetSystemMetrics(SM_CXVIRTUALSCREEN);
+	m_h = GetSystemMetrics(SM_CYVIRTUALSCREEN);
 
-		// calculate center position according to the original size
-		m_xCenter = (SInt32)DpiHelper::s_primaryWidthCenter;
-		m_yCenter = (SInt32)DpiHelper::s_primaryHeightCenter;
-	}
-	else {
-		m_w = GetSystemMetrics(SM_CXVIRTUALSCREEN);
-		m_h = GetSystemMetrics(SM_CYVIRTUALSCREEN);
-
-		m_xCenter = GetSystemMetrics(SM_CXSCREEN) >> 1;
-		m_yCenter = GetSystemMetrics(SM_CYSCREEN) >> 1;
-	}
+	m_xCenter = GetSystemMetrics(SM_CXSCREEN) >> 1;
+	m_yCenter = GetSystemMetrics(SM_CYSCREEN) >> 1;
 
 	// get position
 	m_x = GetSystemMetrics(SM_XVIRTUALSCREEN);

src/lib/server/Server.cpp

@@ -33,7 +33,6 @@
 #include "synergy/KeyState.h"
 #include "synergy/Screen.h"
 #include "synergy/PacketStreamFilter.h"
-#include "synergy/DpiHelper.h"
 #include "net/TCPSocket.h"
 #include "net/IDataSocket.h"
 #include "net/IListenSocket.h"
@@ -2004,14 +2003,6 @@ Server::onMouseMoveSecondary(SInt32 dx, SInt32 dy)
 		SInt32 newX = m_x;
 		SInt32 newY = m_y;
 
-		if (DpiHelper::s_dpiScaled) {
-			// only scale if it's going back to server
-			if (newScreen->isPrimary()) {
-				newX = (SInt32)(newX / DpiHelper::getDpi());
-				newY = (SInt32)(newY / DpiHelper::getDpi());
-			}
-		}
-
 		// switch screens
 		switchScreen(newScreen, newX, newY, false);
 	}

src/lib/synergy/ArgParser.cpp

@@ -23,7 +23,6 @@
 #include "synergy/ClientArgs.h"
 #include "synergy/ToolArgs.h"
 #include "synergy/ArgsBase.h"
-#include "synergy/DpiHelper.h"
 #include "base/Log.h"
 #include "base/String.h"
 
@@ -58,18 +57,6 @@ ArgParser::parseServerArgs(ServerArgs& args, int argc, const char* const* argv)
 			// save configuration file path
 			args.m_configFile = argv[++i];
 		}
-		else if (isArg(i, argc, argv, "", "--res-w", 1)) {
-			DpiHelper::s_resolutionWidth = synergy::string::stringToSizeType(argv[++i]);
-		}
-		else if (isArg(i, argc, argv, "", "--res-h", 1)) {
-			DpiHelper::s_resolutionHeight = synergy::string::stringToSizeType(argv[++i]);
-		}
-		else if (isArg(i, argc, argv, "", "--prm-wc", 1)) {
-			DpiHelper::s_primaryWidthCenter = synergy::string::stringToSizeType(argv[++i]);
-		}
-		else if (isArg(i, argc, argv, "", "--prm-hc", 1)) {
-			DpiHelper::s_primaryHeightCenter = synergy::string::stringToSizeType(argv[++i]);
-		}
 		else if (isArg(i, argc, argv, "", "--serial-key", 1)) {
 			args.m_serial = SerialKey(argv[++i]);
 		}

src/lib/synergy/DpiHelper.cpp

@@ -1,53 +0,0 @@
-/*
- * synergy -- mouse and keyboard sharing utility
- * Copyright (C) 2015 Synergy Seamless Inc.
- * 
- * This package is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * found in the file LICENSE that should have accompanied this file.
- * 
- * This package 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, see <http://www.gnu.org/licenses/>.
- */
-
-#include "synergy/DpiHelper.h"
-#include "base/Log.h"
-
-#include <assert.h> 
-
-size_t DpiHelper::s_dpi = kDefaultDpi;
-bool DpiHelper::s_dpiScaled = false;
-size_t DpiHelper::s_resolutionWidth = 0;
-size_t DpiHelper::s_resolutionHeight = 0;
-size_t DpiHelper::s_primaryWidthCenter = 0;
-size_t DpiHelper::s_primaryHeightCenter = 0;
-
-void DpiHelper::calculateDpi(size_t width, size_t height)
-{
-	if (s_resolutionWidth == 0 || 
-		s_resolutionHeight == 0 || 
-		s_primaryWidthCenter == 0 ||
-		s_primaryHeightCenter == 0) {
-		return;
-	}
-
-	size_t dpiTest1 = s_resolutionWidth * 100 / width;
-	size_t dpiTest2 = s_resolutionHeight * 100 / height;
-
-    if (dpiTest1 == dpiTest2) {
-        s_dpi = dpiTest1;
-
-        if (s_dpi != kDefaultDpi) {
-            s_dpiScaled = true;
-
-            LOG((CLOG_DEBUG "DPI: %d%%", s_dpi));
-            LOG((CLOG_DEBUG "physical resolution: %d, %d scaled resolution: %d, %d",
-				s_resolutionWidth, s_resolutionHeight, width, height));
-        }
-    }
-}

src/lib/synergy/DpiHelper.h

@@ -1,38 +0,0 @@
-/*
- * synergy -- mouse and keyboard sharing utility
- * Copyright (C) 2015 Synergy Seamless Inc.
- * 
- * This package is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * found in the file LICENSE that should have accompanied this file.
- * 
- * This package 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, see <http://www.gnu.org/licenses/>.
- */
-
-#pragma once
-
-#include "common/common.h"
-
-class DpiHelper {
-public:
-	enum EDpi {
-		kDefaultDpi = 100
-	};
-
-	static void calculateDpi(size_t width, size_t height);
-	static float getDpi() { return (float)(s_dpi / 100.0f); }
-
-public:
-	static size_t s_dpi;
-	static bool s_dpiScaled;
-	static size_t s_resolutionWidth;
-	static size_t s_resolutionHeight;
-	static size_t s_primaryWidthCenter;
-	static size_t s_primaryHeightCenter;
-};

src/test/unittests/synergy/DpiHelperTests.cpp

@@ -1,70 +0,0 @@
-/*
- * synergy -- mouse and keyboard sharing utility
- * Copyright (C) 2015 Synergy Seamless Inc.
- * 
- * This package is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * found in the file LICENSE that should have accompanied this file.
- * 
- * This package 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, see <http://www.gnu.org/licenses/>.
- */
-
-#include "synergy/DpiHelper.h"
-
-#include "test/global/gtest.h"
-
-void resetStaticVariables()
-{
-	DpiHelper::s_resolutionWidth = 0;
-	DpiHelper::s_resolutionHeight = 0;
-	DpiHelper::s_primaryWidthCenter = 0;
-	DpiHelper::s_primaryHeightCenter = 0;
-	DpiHelper::s_dpi = DpiHelper::kDefaultDpi;
-	DpiHelper::s_dpiScaled = false;
-}
-
-TEST(DpiHelperTests, calculateDpi_samePhysicalAndVirtualResolutions_defaultDpi)
-{
-	resetStaticVariables();
-
-	DpiHelper::s_resolutionWidth = 1920;
-	DpiHelper::s_resolutionHeight = 1080;
-	DpiHelper::s_primaryWidthCenter = 960;
-	DpiHelper::s_primaryHeightCenter = 540;
-
-	DpiHelper::calculateDpi(1920, 1080);
-
-	EXPECT_FALSE(DpiHelper::s_dpiScaled);
-	EXPECT_EQ(DpiHelper::kDefaultDpi, DpiHelper::s_dpi);
-}
-
-TEST(DpiHelperTests, calculateDpi_differentPhysicalAndVirtualResolutions_scaledDpi)
-{
-	resetStaticVariables();
-
-	DpiHelper::s_resolutionWidth = 1920;
-	DpiHelper::s_resolutionHeight = 1080;
-	DpiHelper::s_primaryWidthCenter = 960;
-	DpiHelper::s_primaryHeightCenter = 540;
-
-	DpiHelper::calculateDpi(960, 540);
-
-	EXPECT_TRUE(DpiHelper::s_dpiScaled);
-	EXPECT_EQ(200, DpiHelper::s_dpi);
-}
-
-TEST(DpiHelperTests, calculateDpi_defaultStaticValues_defaultDpi)
-{
-	resetStaticVariables();
-
-	DpiHelper::calculateDpi(1920, 1080);
-
-	EXPECT_FALSE(DpiHelper::s_dpiScaled);
-	EXPECT_EQ(DpiHelper::kDefaultDpi, DpiHelper::s_dpi);
-}