117ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com/* 217ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com * Copyright 2013 Google Inc. 317ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com * 417ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com * Use of this source code is governed by a BSD-style license that can be 517ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com * found in the LICENSE file. 617ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com */ 717ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com 817ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com#include "gm.h" 9b7061176c7f414616fe2e79e832b3e0abe326af6robertphillips@google.com#include "SkBlurMask.h" 1017ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com#include "SkBlurMaskFilter.h" 11b7061176c7f414616fe2e79e832b3e0abe326af6robertphillips@google.com#include "SkCanvas.h" 1217ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com 1317ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com// This GM tests out the quick reject bounds of the blur mask filter. It draws 1417ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com// four blurred rects around a central clip. The blurred rect geometry outset 1517ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com// by the blur radius does not overlap the clip rect so, if the blur clipping 1617ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com// just uses the radius, they will be clipped out (and the result will differ 1717ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com// from the result if quick reject were disabled. If the blur clipping uses 1817ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com// the correct 3 sigma bound then the images with and without quick rejecting 1917ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com// will be the same. 2017ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.comclass BlurQuickRejectGM : public skiagm::GM { 2117ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.compublic: 2217ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com BlurQuickRejectGM() {} 2317ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com 2417ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.comprotected: 2536352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkString onShortName() override { 2617ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com return SkString("blurquickreject"); 2717ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com } 2817ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com 2936352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkISize onISize() override { 3017ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com return SkISize::Make(kWidth, kHeight); 3117ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com } 3217ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com 3336352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void onDraw(SkCanvas* canvas) override { 3417ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com static const SkScalar kBlurRadius = SkIntToScalar(20); 3517ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com static const SkScalar kBoxSize = SkIntToScalar(100); 3617ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com 3717ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com SkRect clipRect = SkRect::MakeXYWH(0, 0, kBoxSize, kBoxSize); 3817ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com SkRect blurRects[] = { 3917ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com { -kBoxSize - (kBlurRadius+1), 0, -(kBlurRadius+1), kBoxSize }, 4017ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com { 0, -kBoxSize - (kBlurRadius+1), kBoxSize, -(kBlurRadius+1) }, 4117ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com { kBoxSize+kBlurRadius+1, 0, 2*kBoxSize+kBlurRadius+1, kBoxSize }, 4217ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com { 0, kBoxSize+kBlurRadius+1, kBoxSize, 2*kBoxSize+kBlurRadius+1 } 4317ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com }; 4417ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com SkColor colors[] = { 4517ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com SK_ColorRED, 4617ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com SK_ColorGREEN, 4717ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com SK_ColorBLUE, 4817ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com SK_ColorYELLOW, 4917ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com }; 5017ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com SkASSERT(SK_ARRAY_COUNT(colors) == SK_ARRAY_COUNT(blurRects)); 5117ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com 5217ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com SkPaint hairlinePaint; 5317ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com hairlinePaint.setStyle(SkPaint::kStroke_Style); 5417ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com hairlinePaint.setColor(SK_ColorWHITE); 5517ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com hairlinePaint.setStrokeWidth(0); 5617ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com 5717ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com SkPaint blurPaint; 5893a1215fe0ab007ce941c721f1fd3e9dcb5d4754reed blurPaint.setFilterQuality(kLow_SkFilterQuality); 59e396455d2d60ddf8e625b5037254f3c09fbcdcf5commit-bot@chromium.org SkMaskFilter* mf = SkBlurMaskFilter::Create(kNormal_SkBlurStyle, 60b7061176c7f414616fe2e79e832b3e0abe326af6robertphillips@google.com SkBlurMask::ConvertRadiusToSigma(kBlurRadius)); 6117ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com blurPaint.setMaskFilter(mf)->unref(); 6217ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com 6317ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com canvas->clear(SK_ColorBLACK); 6417ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com canvas->save(); 6517ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com canvas->translate(kBoxSize, kBoxSize); 6617ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com canvas->drawRect(clipRect, hairlinePaint); 6717ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com canvas->clipRect(clipRect); 68073a32ecb6178e71eee123813a183aa0f01548f3robertphillips@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(blurRects); ++i) { 6917ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com blurPaint.setColor(colors[i]); 7017ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com canvas->drawRect(blurRects[i], blurPaint); 7117ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com canvas->drawRect(blurRects[i], hairlinePaint); 7217ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com } 7317ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com canvas->restore(); 7417ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com } 7517ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com 7617ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.comprivate: 7717ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com static const int kWidth = 300; 7817ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com static const int kHeight = 300; 7917ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com 8017ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com typedef GM INHERITED; 8117ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com}; 8217ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.com 8317ad2bd077af50dcaca18cf00607b194a1491a44robertphillips@google.comDEF_GM( return new BlurQuickRejectGM(); ) 84