1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include <signal.h> 6 #include <stdio.h> 7 #include <stdlib.h> 8 #include <windows.h> 9 10 static BOOL font_smoothing_enabled = FALSE; 11 12 static void SaveInitialSettings() { 13 ::SystemParametersInfo(SPI_GETFONTSMOOTHING, 0, &font_smoothing_enabled, 0); 14 } 15 16 // Technically, all we need to do is disable ClearType. However, 17 // for some reason, the call to SPI_SETFONTSMOOTHINGTYPE doesn't 18 // seem to work, so we just disable font smoothing all together 19 // (which works reliably). 20 static void InstallLayoutTestSettings() { 21 ::SystemParametersInfo(SPI_SETFONTSMOOTHING, FALSE, 0, 0); 22 } 23 24 static void RestoreInitialSettings() { 25 ::SystemParametersInfo( 26 SPI_SETFONTSMOOTHING, static_cast<UINT>(font_smoothing_enabled), 0, 0); 27 } 28 29 static void SimpleSignalHandler(int signalNumber) { 30 // Try to restore the settings and then go down cleanly. 31 RestoreInitialSettings(); 32 exit(128 + signalNumber); 33 } 34 35 int main(int, char**) { 36 // Hooks the ways we might get told to clean up... 37 signal(SIGINT, SimpleSignalHandler); 38 signal(SIGTERM, SimpleSignalHandler); 39 40 SaveInitialSettings(); 41 42 InstallLayoutTestSettings(); 43 44 // Let the script know we're ready. 45 printf("ready\n"); 46 fflush(stdout); 47 48 // Wait for any key (or signal). 49 getchar(); 50 51 RestoreInitialSettings(); 52 53 return EXIT_SUCCESS; 54 } 55
