1/* 2 * Copyright (c) 2006,2007,2008, Google 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 are 6 * met: 7 * 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 13 * distribution. 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. 17 * 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. 29 */ 30 31// All of the functions in this file should move to new homes and this file should be deleted. 32 33#ifndef SkiaUtils_h 34#define SkiaUtils_h 35 36#include <wtf/MathExtras.h> 37#include "GraphicsContext.h" 38#include "SkPath.h" 39#include "SkXfermode.h" 40 41class SkCanvas; 42class SkRegion; 43 44namespace WebCore { 45 46SkXfermode::Mode WebCoreCompositeToSkiaComposite(CompositeOperator); 47 48// move this guy into SkColor.h 49SkColor SkPMColorToColor(SkPMColor); 50 51// This should be an operator on Color 52Color SkPMColorToWebCoreColor(SkPMColor); 53 54// Skia has problems when passed infinite, etc floats, filter them to 0. 55inline SkScalar WebCoreFloatToSkScalar(float f) 56{ 57 return SkFloatToScalar(isfinite(f) ? f : 0); 58} 59 60inline SkScalar WebCoreDoubleToSkScalar(double d) 61{ 62 return SkDoubleToScalar(isfinite(d) ? d : 0); 63} 64 65// Computes the smallest rectangle that, which when drawn to the given canvas, 66// will cover the same area as the source rectangle. It will clip to the canvas' 67// clip, doing the necessary coordinate transforms. 68// 69// srcRect and destRect can be the same. 70void ClipRectToCanvas(const SkCanvas&, const SkRect& srcRect, SkRect* destRect); 71 72// Determine if a given WebKit point is contained in a path 73bool SkPathContainsPoint(SkPath*, const FloatPoint&, SkPath::FillType); 74 75// Returns a statically allocated 1x1 GraphicsContext intended for temporary 76// operations. Please save() the state and restore() it when you're done with 77// the context. 78GraphicsContext* scratchContext(); 79 80} // namespace WebCore 81 82#endif // SkiaUtils_h 83