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| 1 /* | |
| 2 * Copyright (C) 2006, 2007, 2009 Apple Computer, Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer in the | |
| 11 * documentation and/or other materials provided with the distribution. | |
| 12 * | |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 #include "config.h" | |
| 26 | |
| 27 #include <windows.h> | |
| 28 | |
| 29 #include "QTMovieWinTimer.h" | |
| 30 | |
| 31 #include <wtf/Assertions.h> | |
| 32 | |
| 33 // This file is used by the QuickTime access DLL. It copies some WebCore code | |
| 34 // which can't be used directly due to dependency issues. | |
| 35 | |
| 36 // FIXME: Find a way to do timers that can manage <10ms resolution properly too. | |
| 37 | |
| 38 static UINT_PTR timerID; | |
| 39 static void (*sharedTimerFiredFunction)(); | |
| 40 | |
| 41 static HINSTANCE instanceHandle = 0; | |
| 42 | |
| 43 static HWND timerWindowHandle = 0; | |
| 44 static UINT timerFiredMessage = 0; | |
| 45 static const LPCWSTR kTimerWindowClassName = L"TimerWindowClass"; | |
| 46 static bool processingCustomTimerMessage = false; | |
| 47 | |
| 48 static LRESULT CALLBACK TimerWindowWndProc(HWND hWnd, UINT message, WPARAM wPara
m, LPARAM lParam) | |
| 49 { | |
| 50 if (message == timerFiredMessage) { | |
| 51 processingCustomTimerMessage = true; | |
| 52 sharedTimerFiredFunction(); | |
| 53 processingCustomTimerMessage = false; | |
| 54 } else if (message == WM_TIMER && wParam == timerID) { | |
| 55 stopSharedTimer(); | |
| 56 sharedTimerFiredFunction(); | |
| 57 } else | |
| 58 return DefWindowProc(hWnd, message, wParam, lParam); | |
| 59 return 0; | |
| 60 } | |
| 61 | |
| 62 static void initializeOffScreenTimerWindow() | |
| 63 { | |
| 64 if (timerWindowHandle) | |
| 65 return; | |
| 66 | |
| 67 WNDCLASSEX wcex; | |
| 68 memset(&wcex, 0, sizeof(WNDCLASSEX)); | |
| 69 wcex.cbSize = sizeof(WNDCLASSEX); | |
| 70 wcex.lpfnWndProc = TimerWindowWndProc; | |
| 71 wcex.hInstance = instanceHandle; | |
| 72 wcex.lpszClassName = kTimerWindowClassName; | |
| 73 RegisterClassEx(&wcex); | |
| 74 | |
| 75 timerWindowHandle = CreateWindow(kTimerWindowClassName, 0, 0, | |
| 76 CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, HWND_MESSAGE, 0, instanceHandle, 0); | |
| 77 timerFiredMessage = RegisterWindowMessage(L"com.apple.WebKit.TimerFired"); | |
| 78 } | |
| 79 | |
| 80 void setSharedTimerFiredFunction(void (*f)()) | |
| 81 { | |
| 82 sharedTimerFiredFunction = f; | |
| 83 } | |
| 84 | |
| 85 void setSharedTimerFireDelay(double interval) | |
| 86 { | |
| 87 ASSERT(sharedTimerFiredFunction); | |
| 88 | |
| 89 unsigned intervalInMS; | |
| 90 if (interval < 0) | |
| 91 intervalInMS = 0; | |
| 92 else { | |
| 93 interval *= 1000; | |
| 94 if (interval > USER_TIMER_MAXIMUM) | |
| 95 intervalInMS = USER_TIMER_MAXIMUM; | |
| 96 else | |
| 97 intervalInMS = (unsigned)interval; | |
| 98 } | |
| 99 | |
| 100 stopSharedTimer(); | |
| 101 initializeOffScreenTimerWindow(); | |
| 102 | |
| 103 // We don't allow nested PostMessages, since the custom messages will effect
ively starve | |
| 104 // painting and user input. (Win32 has a tri-level queue with application me
ssages > | |
| 105 // user input > WM_PAINT/WM_TIMER.) | |
| 106 // In addition, if the queue contains input events that have been there sinc
e the last call to | |
| 107 // GetQueueStatus, PeekMessage or GetMessage we favor timers. | |
| 108 if (intervalInMS < USER_TIMER_MINIMUM | |
| 109 && !processingCustomTimerMessage | |
| 110 && !LOWORD(::GetQueueStatus(QS_ALLINPUT))) { | |
| 111 // Windows SetTimer does not allow timeouts smaller than 10ms (USER_TIME
R_MINIMUM) | |
| 112 PostMessage(timerWindowHandle, timerFiredMessage, 0, 0); | |
| 113 } else | |
| 114 timerID = SetTimer(timerWindowHandle, timerFiredMessage, intervalInMS, 0
); | |
| 115 } | |
| 116 | |
| 117 void stopSharedTimer() | |
| 118 { | |
| 119 if (timerID) { | |
| 120 KillTimer(timerWindowHandle, timerID); | |
| 121 timerID = 0; | |
| 122 } | |
| 123 } | |
| 124 | |
| 125 void setSharedTimerInstanceHandle(HINSTANCE handle) | |
| 126 { | |
| 127 instanceHandle = handle; | |
| 128 } | |
| 129 | |
| 130 double systemTime() | |
| 131 { | |
| 132 FILETIME ft; | |
| 133 GetSystemTimeAsFileTime(&ft); | |
| 134 ULARGE_INTEGER t; | |
| 135 memcpy(&t, &ft, sizeof(t)); | |
| 136 return t.QuadPart * 0.0000001 - 11644473600.0; | |
| 137 } | |
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Chromium Code Reviews
Issue 13642009:
WebCore: Remove PLATFORM(WIN) files we do not use. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk