1ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com/* 2ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Copyright 2011 Google Inc. 3ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * 4ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Use of this source code is governed by a BSD-style license that can be 5ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * found in the LICENSE file. 6ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com */ 7ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com#include "SampleCode.h" 8b7061176c7f414616fe2e79e832b3e0abe326af6robertphillips@google.com#include "SkBlurMask.h" 9b7061176c7f414616fe2e79e832b3e0abe326af6robertphillips@google.com#include "SkBlurMaskFilter.h" 10ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com#include "SkCanvas.h" 11ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com#include "SkParsePath.h" 12ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com#include "SkPath.h" 13ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com#include "SkRandom.h" 14ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com#include "SkView.h" 15ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com 164913b7794ad5f699a92feaee8e514571d218645breed@android.com 1704d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.comstatic void test_huge_stroke(SkCanvas* canvas) { 1804d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com SkRect srcR = { 0, 0, 72000, 54000 }; 1904d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com SkRect dstR = { 0, 0, 640, 480 }; 20ae933ce0ea5fd9d21cb6ef2cee7e729d32690aacrmistry@google.com 2104d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com SkPath path; 2204d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com path.moveTo(17600, 8000); 2304d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com path.lineTo(52800, 8000); 2404d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com path.lineTo(52800, 41600); 2504d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com path.lineTo(17600, 41600); 2604d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com path.close(); 27ae933ce0ea5fd9d21cb6ef2cee7e729d32690aacrmistry@google.com 2804d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com SkPaint paint; 2904d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com paint.setAntiAlias(true); 3004d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com paint.setStrokeWidth(8000); 3104d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com paint.setStrokeMiter(10); 3204d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com paint.setStrokeCap(SkPaint::kButt_Cap); 3304d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com paint.setStrokeJoin(SkPaint::kRound_Join); 3404d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com paint.setStyle(SkPaint::kStroke_Style); 3504d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com 3604d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com SkMatrix matrix; 3704d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com matrix.setRectToRect(srcR, dstR, SkMatrix::kCenter_ScaleToFit); 3804d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com canvas->concat(matrix); 3904d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com 4004d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com canvas->drawPath(path, paint); 4104d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com} 4204d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com 437ab2cf90b617e25a2ae031fe12c22d71583eee48reed@android.com#if 0 444913b7794ad5f699a92feaee8e514571d218645breed@android.comstatic void test_blur() { 454913b7794ad5f699a92feaee8e514571d218645breed@android.com uint8_t cell[9]; 464913b7794ad5f699a92feaee8e514571d218645breed@android.com memset(cell, 0xFF, sizeof(cell)); 474913b7794ad5f699a92feaee8e514571d218645breed@android.com SkMask src; 484913b7794ad5f699a92feaee8e514571d218645breed@android.com src.fImage = cell; 494913b7794ad5f699a92feaee8e514571d218645breed@android.com src.fFormat = SkMask::kA8_Format; 504913b7794ad5f699a92feaee8e514571d218645breed@android.com SkMask dst; 514913b7794ad5f699a92feaee8e514571d218645breed@android.com 524913b7794ad5f699a92feaee8e514571d218645breed@android.com for (int y = 1; y <= 3; y++) { 534913b7794ad5f699a92feaee8e514571d218645breed@android.com for (int x = 1; x <= 3; x++) { 544913b7794ad5f699a92feaee8e514571d218645breed@android.com src.fBounds.set(0, 0, x, y); 554913b7794ad5f699a92feaee8e514571d218645breed@android.com src.fRowBytes = src.fBounds.width(); 56ae933ce0ea5fd9d21cb6ef2cee7e729d32690aacrmistry@google.com 574913b7794ad5f699a92feaee8e514571d218645breed@android.com SkScalar radius = 1.f; 584913b7794ad5f699a92feaee8e514571d218645breed@android.com 594913b7794ad5f699a92feaee8e514571d218645breed@android.com printf("src [%d %d %d %d] radius %g\n", src.fBounds.fLeft, src.fBounds.fTop, 604913b7794ad5f699a92feaee8e514571d218645breed@android.com src.fBounds.fRight, src.fBounds.fBottom, radius); 614913b7794ad5f699a92feaee8e514571d218645breed@android.com 624913b7794ad5f699a92feaee8e514571d218645breed@android.com SkBlurMask::Blur(&dst, src, radius, SkBlurMask::kNormal_Style); 634913b7794ad5f699a92feaee8e514571d218645breed@android.com uint8_t* dstPtr = dst.fImage; 644913b7794ad5f699a92feaee8e514571d218645breed@android.com 654913b7794ad5f699a92feaee8e514571d218645breed@android.com for (int y = 0; y < dst.fBounds.height(); y++) { 664913b7794ad5f699a92feaee8e514571d218645breed@android.com for (int x = 0; x < dst.fBounds.width(); x++) { 674913b7794ad5f699a92feaee8e514571d218645breed@android.com printf(" %02X", dstPtr[x]); 684913b7794ad5f699a92feaee8e514571d218645breed@android.com } 694913b7794ad5f699a92feaee8e514571d218645breed@android.com printf("\n"); 704913b7794ad5f699a92feaee8e514571d218645breed@android.com dstPtr += dst.fRowBytes; 714913b7794ad5f699a92feaee8e514571d218645breed@android.com } 724913b7794ad5f699a92feaee8e514571d218645breed@android.com } 734913b7794ad5f699a92feaee8e514571d218645breed@android.com } 744913b7794ad5f699a92feaee8e514571d218645breed@android.com} 757ab2cf90b617e25a2ae031fe12c22d71583eee48reed@android.com#endif 76da449a38a2ac06f47f504cef7897afe322981daereed@android.com 77ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.comstatic void scale_to_width(SkPath* path, SkScalar dstWidth) { 78ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com const SkRect& bounds = path->getBounds(); 79ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com SkScalar scale = dstWidth / bounds.width(); 80ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com SkMatrix matrix; 81ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com 82ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com matrix.setScale(scale, scale); 83ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com path->transform(matrix); 84ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com} 85ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com 86ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.comstatic const struct { 87ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com SkPaint::Style fStyle; 88ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com SkPaint::Join fJoin; 89ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com int fStrokeWidth; 90ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com} gRec[] = { 91ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com { SkPaint::kFill_Style, SkPaint::kMiter_Join, 0 }, 92ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com { SkPaint::kStroke_Style, SkPaint::kMiter_Join, 0 }, 93ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com { SkPaint::kStroke_Style, SkPaint::kMiter_Join, 10 }, 94ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com { SkPaint::kStrokeAndFill_Style, SkPaint::kMiter_Join, 10 }, 95ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com}; 96ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com 9781e3d7f7943d5c257a07580b75218a5e256b0aadreed@google.comclass StrokePathView : public SampleView { 98ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com SkScalar fWidth; 99ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com SkPath fPath; 10063c684a8a609d39da11b4a656223cebf52ca85dccaryclarkprotected: 10136352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void onOnceBeforeDraw() override { 1027ab2cf90b617e25a2ae031fe12c22d71583eee48reed@android.com// test_blur(); 103ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com fWidth = SkIntToScalar(120); 104ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com 105ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com#if 0 106ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com const char str[] = 107ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com "M 0, 3" 108ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com "C 10, -10, 30, -10, 0, 28" 109ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com "C -30, -10, -10, -10, 0, 3" 110ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com "Z"; 111ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com SkParsePath::FromSVGString(str, &fPath); 112ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com#else 113ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com fPath.addCircle(0, 0, SkIntToScalar(50), SkPath::kCW_Direction); 114ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com fPath.addCircle(0, SkIntToScalar(-50), SkIntToScalar(30), SkPath::kCW_Direction); 115ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com#endif 116ae933ce0ea5fd9d21cb6ef2cee7e729d32690aacrmistry@google.com 117ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com scale_to_width(&fPath, fWidth); 118ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com const SkRect& bounds = fPath.getBounds(); 119ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com fPath.offset(-bounds.fLeft, -bounds.fTop); 12081e3d7f7943d5c257a07580b75218a5e256b0aadreed@google.com 12181e3d7f7943d5c257a07580b75218a5e256b0aadreed@google.com this->setBGColor(0xFFDDDDDD); 122ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com } 123ae933ce0ea5fd9d21cb6ef2cee7e729d32690aacrmistry@google.com 124ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com // overrides from SkEventSink 12536352bf5e38f45a70ee4f4fc132a38048d38206dmtklein bool onQuery(SkEvent* evt) override { 126ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com if (SampleCode::TitleQ(*evt)) { 127ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com SampleCode::TitleR(evt, "StrokePath"); 128ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com return true; 129ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com } 130ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com return this->INHERITED::onQuery(evt); 131ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com } 132ae933ce0ea5fd9d21cb6ef2cee7e729d32690aacrmistry@google.com 133e0e7cfe44bb9d66d76120a79e5275c294bacaa22commit-bot@chromium.org SkRandom rand; 134ae933ce0ea5fd9d21cb6ef2cee7e729d32690aacrmistry@google.com 135ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com void drawSet(SkCanvas* canvas, SkPaint* paint) { 136ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com SkAutoCanvasRestore acr(canvas, true); 137ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com 138ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); i++) { 139ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com paint->setStyle(gRec[i].fStyle); 140ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com paint->setStrokeJoin(gRec[i].fJoin); 141ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com paint->setStrokeWidth(SkIntToScalar(gRec[i].fStrokeWidth)); 142ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com canvas->drawPath(fPath, *paint); 143ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com canvas->translate(fWidth * 5 / 4, 0); 144ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com } 145ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com } 146ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com 14736352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void onDrawContent(SkCanvas* canvas) override { 14804d86c6a6b8eb8631752b3680f1292fa0a2c7119reed@android.com test_huge_stroke(canvas); return; 149ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com canvas->translate(SkIntToScalar(10), SkIntToScalar(10)); 150ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com 151ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com SkPaint paint; 152ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com paint.setAntiAlias(true); 153ae933ce0ea5fd9d21cb6ef2cee7e729d32690aacrmistry@google.com 154da449a38a2ac06f47f504cef7897afe322981daereed@android.com if (true) { 155da449a38a2ac06f47f504cef7897afe322981daereed@android.com canvas->drawColor(SK_ColorBLACK); 156da449a38a2ac06f47f504cef7897afe322981daereed@android.com 157da449a38a2ac06f47f504cef7897afe322981daereed@android.com paint.setTextSize(24); 158da449a38a2ac06f47f504cef7897afe322981daereed@android.com paint.setColor(SK_ColorWHITE); 159da449a38a2ac06f47f504cef7897afe322981daereed@android.com canvas->translate(10, 30); 160da449a38a2ac06f47f504cef7897afe322981daereed@android.com 161e396455d2d60ddf8e625b5037254f3c09fbcdcf5commit-bot@chromium.org static const SkBlurStyle gStyle[] = { 162e396455d2d60ddf8e625b5037254f3c09fbcdcf5commit-bot@chromium.org kNormal_SkBlurStyle, 163e396455d2d60ddf8e625b5037254f3c09fbcdcf5commit-bot@chromium.org kInner_SkBlurStyle, 164e396455d2d60ddf8e625b5037254f3c09fbcdcf5commit-bot@chromium.org kOuter_SkBlurStyle, 165e396455d2d60ddf8e625b5037254f3c09fbcdcf5commit-bot@chromium.org kSolid_SkBlurStyle, 166da449a38a2ac06f47f504cef7897afe322981daereed@android.com }; 167da449a38a2ac06f47f504cef7897afe322981daereed@android.com for (int x = 0; x < 5; x++) { 168b7061176c7f414616fe2e79e832b3e0abe326af6robertphillips@google.com SkScalar sigma = SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(4)); 169da449a38a2ac06f47f504cef7897afe322981daereed@android.com for (int y = 0; y < 10; y++) { 170da449a38a2ac06f47f504cef7897afe322981daereed@android.com if (x) { 171efdfd51b68a300d5c6e28743fe0344ca05d1cec9reed paint.setMaskFilter(SkBlurMaskFilter::Make(gStyle[x - 1], sigma)); 172da449a38a2ac06f47f504cef7897afe322981daereed@android.com } 1732a475eae622adc1e8fa29206be1eaf862c23548eCary Clark canvas->drawString("Title Bar", x*SkIntToScalar(100), y*SkIntToScalar(30), paint); 174b7061176c7f414616fe2e79e832b3e0abe326af6robertphillips@google.com sigma *= 0.75f; 175da449a38a2ac06f47f504cef7897afe322981daereed@android.com } 176ae933ce0ea5fd9d21cb6ef2cee7e729d32690aacrmistry@google.com 177da449a38a2ac06f47f504cef7897afe322981daereed@android.com } 178da449a38a2ac06f47f504cef7897afe322981daereed@android.com return; 179da449a38a2ac06f47f504cef7897afe322981daereed@android.com } 180da449a38a2ac06f47f504cef7897afe322981daereed@android.com 181ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com paint.setColor(SK_ColorBLUE); 182ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com 183ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com#if 1 184ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com SkPath p; 185ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com float r = rand.nextUScalar1() + 0.5f; 186ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com SkScalar x = 0, y = 0; 187ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com p.moveTo(x, y); 188ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com#if 0 189ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com p.cubicTo(x-75*r, y+75*r, x-40*r, y+125*r, x, y+85*r); 190ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com p.cubicTo(x+40*r, y+125*r, x+75*r, y+75*r, x, y); 191ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com#else 192ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com p.cubicTo(x+75*r, y+75*r, x+40*r, y+125*r, x, y+85*r); 193ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com p.cubicTo(x-40*r, y+125*r, x-75*r, y+75*r, x, y); 194ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com#endif 195ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com p.close(); 196ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com fPath = p; 197ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com fPath.offset(100, 0); 198ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com#endif 199ae933ce0ea5fd9d21cb6ef2cee7e729d32690aacrmistry@google.com 200ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com fPath.setFillType(SkPath::kWinding_FillType); 201ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com drawSet(canvas, &paint); 202ae933ce0ea5fd9d21cb6ef2cee7e729d32690aacrmistry@google.com 203ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com canvas->translate(0, fPath.getBounds().height() * 5 / 4); 204ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com fPath.setFillType(SkPath::kEvenOdd_FillType); 205ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com drawSet(canvas, &paint); 206ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com } 207ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com 208ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.comprivate: 20981e3d7f7943d5c257a07580b75218a5e256b0aadreed@google.com typedef SampleView INHERITED; 210ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com}; 211ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com 212ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com////////////////////////////////////////////////////////////////////////////// 213ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.com 214ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.comstatic SkView* MyFactory() { return new StrokePathView; } 215ed881c2704bc81fe46a68c0cf9e292287313baa6reed@android.comstatic SkViewRegister reg(MyFactory); 216