1 /* 2 * Copyright 2012 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #ifndef SkPictureUtils_DEFINED 9 #define SkPictureUtils_DEFINED 10 11 #include "SkPicture.h" 12 13 class SkData; 14 struct SkRect; 15 16 class SK_API SkPictureUtils { 17 public: 18 /** 19 * Given a rectangular visible "window" into the picture, return an array 20 * of SkPixelRefs that might intersect that area. To keep the call fast, 21 * the returned list is not guaranteed to be exact, so it may miss some, 22 * and it may return false positives. 23 * 24 * The pixelrefs returned in the SkData are already owned by the picture, 25 * so the returned pointers are only valid while the picture is in scope 26 * and remains unchanged. 27 */ 28 static SkData* GatherPixelRefs(SkPicture* pict, const SkRect& area); 29 }; 30 31 #endif 32
