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FloatConversion.h
Go to the documentation of this file.00001 /* 00002 * Copyright (C) 2007 Apple Inc. All rights reserved. 00003 * 00004 * Redistribution and use in source and binary forms, with or without 00005 * modification, are permitted provided that the following conditions 00006 * are met: 00007 * 00008 * 1. Redistributions of source code must retain the above copyright 00009 * notice, this list of conditions and the following disclaimer. 00010 * 2. Redistributions in binary form must reproduce the above copyright 00011 * notice, this list of conditions and the following disclaimer in the 00012 * documentation and/or other materials provided with the distribution. 00013 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 00014 * its contributors may be used to endorse or promote products derived 00015 * from this software without specific prior written permission. 00016 * 00017 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 00018 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 00019 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00020 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 00021 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 00022 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00023 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 00024 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00025 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 00026 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00027 */ 00028 00029 #ifndef FloatConversion_h 00030 #define FloatConversion_h 00031 00032 #include <wtf/Platform.h> 00033 #if PLATFORM(CG) 00034 #include <CoreGraphics/CGBase.h> 00035 #endif 00036 00037 namespace WebCore { 00038 00039 template<typename T> 00040 float narrowPrecisionToFloat(T); 00041 00042 template<> 00043 inline float narrowPrecisionToFloat(double number) 00044 { 00045 return static_cast<float>(number); 00046 } 00047 00048 #if PLATFORM(CG) 00049 template<typename T> 00050 CGFloat narrowPrecisionToCGFloat(T); 00051 00052 template<> 00053 inline CGFloat narrowPrecisionToCGFloat(double number) 00054 { 00055 return static_cast<CGFloat>(number); 00056 } 00057 #endif 00058 00059 } // namespace WebCore 00060 00061 #endif // FloatConversion_h