1 /* 2 * Copyright 2014 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 #include "gm.h" 9 10 // This GM exercises the use case found in crbug.com/423834. 11 // The following pattern: 12 // save(); 13 // clipRect(rect, noAA); 14 // drawRect(bigRect, noAA); 15 // restore(); 16 // 17 // drawRect(rect, noAA); 18 // can leave 1 pixel wide remnants of the first rect. 19 static void Draw(SkCanvas* canvas, const SkRect& rect) { 20 SkPaint p; 21 p.setAntiAlias(false); 22 23 const SkRect bigRect = SkRect::MakeWH(600, 600); 24 25 canvas->save(); 26 // draw a black rect through the clip 27 canvas->save(); 28 canvas->clipRect(rect); 29 canvas->drawRect(bigRect, p); 30 canvas->restore(); 31 32 // now draw the white rect on top 33 p.setColor(SK_ColorWHITE); 34 canvas->drawRect(rect, p); 35 canvas->restore(); 36 } 37 38 DEF_SIMPLE_GM_BG(clipdrawdraw, canvas, 512, 512, 39 sk_tool_utils::color_to_565(0xFFCCCCCC)) { 40 // Vertical remnant 41 const SkRect rect1 = SkRect::MakeLTRB(136.5f, 137.5f, 338.5f, 293.5f); 42 43 // Horizontal remnant 44 // 179.488 rounds the right way (i.e., 179), 179.499 rounds the wrong way (i.e., 180) 45 const SkRect rect2 = SkRect::MakeLTRB(207.5f, 179.499f, 530.5f, 429.5f); 46 47 Draw(canvas, rect1); 48 Draw(canvas, rect2); 49 } 50
