Refactored some platform dependent code into a new library,

lib/arch. This should make porting easier. Will probably continue to refactor a little more, moving platform dependent event handling stuff into lib/platform.
2026-05-07 14:14:10 +08:00 · 2003-01-04 22:01:32 +00:00
parent 62303391a8
commit f65921bc3f
169 changed files with 9676 additions and 5601 deletions
--- a/lib/arch/CArchTimeWindows.cpp
+++ b/lib/arch/CArchTimeWindows.cpp
@@ -0,0 +1,86 @@
+/*
+ * synergy -- mouse and keyboard sharing utility
+ * Copyright (C) 2002 Chris Schoeneman
+ * 
+ * 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 COPYING 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.
+ */
+
+// avoid getting a lot a crap from mmsystem.h that we don't need
+#define MMNODRV         // Installable driver support
+#define MMNOSOUND       // Sound support
+#define MMNOWAVE        // Waveform support
+#define MMNOMIDI        // MIDI support
+#define MMNOAUX         // Auxiliary audio support
+#define MMNOMIXER       // Mixer support
+#define MMNOJOY         // Joystick support
+#define MMNOMCI         // MCI support
+#define MMNOMMIO        // Multimedia file I/O support
+#define MMNOMMSYSTEM    // General MMSYSTEM functions
+
+#define WIN32_LEAN_AND_MEAN
+
+#include "CArchTimeWindows.h"
+#include <windows.h>
+#include <mmsystem.h>
+
+typedef WINMMAPI DWORD (WINAPI *PTimeGetTime)(void);
+
+static double			s_freq       = 0.0;
+static HINSTANCE		s_mmInstance = NULL;
+static PTimeGetTime		s_tgt        = NULL;
+
+
+//
+// CArchTimeWindows
+//
+
+CArchTimeWindows::CArchTimeWindows()
+{
+	assert(s_freq == 0.0 || s_mmInstance == NULL);
+
+	LARGE_INTEGER freq;
+	if (QueryPerformanceFrequency(&freq) && freq.QuadPart != 0) {
+		s_freq = 1.0 / static_cast<double>(freq.QuadPart);
+	}
+	else {
+		// load winmm.dll and get timeGetTime
+		s_mmInstance = LoadLibrary("winmm");
+		if (s_mmInstance != NULL) {
+			s_tgt = (PTimeGetTime)GetProcAddress(s_mmInstance, "timeGetTime");
+		}
+	}
+}
+
+CArchTimeWindows::~CArchTimeWindows()
+{
+	s_freq = 0.0;
+	if (s_mmInstance == NULL) {
+		FreeLibrary(reinterpret_cast<HMODULE>(s_mmInstance));
+		s_tgt        = NULL;
+		s_mmInstance = NULL;
+	}
+}
+
+double
+CArchTimeWindows::time()
+{
+	// get time.  we try three ways, in order of descending precision
+	if (s_freq != 0.0) {
+		LARGE_INTEGER c;
+		QueryPerformanceCounter(&c);
+		return s_freq * static_cast<double>(c.QuadPart);
+	}
+	else if (s_tgt != NULL) {
+		return 0.001 * static_cast<double>(s_tgt());
+	}
+	else {
+		return 0.001 * static_cast<double>(GetTickCount());
+	}
+}