2 * Copyright (C) 2010 Google Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 static BOOL fontSmoothingEnabled = FALSE;
38 static void saveInitialSettings(void)
40 ::SystemParametersInfo(SPI_GETFONTSMOOTHING, 0, &fontSmoothingEnabled, 0);
43 // Technically, all we need to do is disable ClearType. However,
44 // for some reason, the call to SPI_SETFONTSMOOTHINGTYPE doesn't
45 // seem to work, so we just disable font smoothing all together
46 // (which works reliably)
47 static void installLayoutTestSettings(void)
49 ::SystemParametersInfo(SPI_SETFONTSMOOTHING, FALSE, 0, 0);
52 static void restoreInitialSettings(void)
54 ::SystemParametersInfo(SPI_SETFONTSMOOTHING, static_cast<UINT>(fontSmoothingEnabled), 0, 0);
57 static void simpleSignalHandler(int signalNumber)
59 // Try to restore the settings and then go down cleanly
60 restoreInitialSettings();
61 exit(128 + signalNumber);
64 int main(int, char*[])
66 // Hooks the ways we might get told to clean up...
67 signal(SIGINT, simpleSignalHandler);
68 signal(SIGTERM, simpleSignalHandler);
70 saveInitialSettings();
72 installLayoutTestSettings();
74 // Let the script know we're ready
78 // Wait for any key (or signal)
81 restoreInitialSettings();