gm/strokefill.cpp

   1 /*
   2  * Copyright 2011 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 #include "sk_tool_utils.h"
  10 #include "SkCanvas.h"
  11 #include "SkPathPriv.h"
  12 #include "SkTextFormatParams.h"
  13 #include "SkTypeface.h"
  14
  15 /* Generated on a Mac with:
  16  * paint.setTypeface(SkTypeface::CreateByName("Papyrus"));
  17  * paint.getTextPath("H", 1, 100, 80, &textPath);
  18  */
  19 static SkPath papyrus_hello() {
  20     SkPath path;
  21     path.moveTo(169.824f, 83.4102f);
  22     path.lineTo(167.285f, 85.6074f);
  23     path.lineTo(166.504f, 87.2188f);
  24     path.lineTo(165.82f, 86.7793f);
  25     path.lineTo(165.186f, 87.1211f);
  26     path.lineTo(164.6f, 88.1953f);
  27     path.lineTo(161.914f, 89.416f);
  28     path.lineTo(161.719f, 89.2207f);
  29     path.lineTo(160.596f, 88.8789f);
  30     path.lineTo(160.498f, 87.6094f);
  31     path.lineTo(160.693f, 86.3887f);
  32     path.lineTo(161.621f, 84.6797f);
  33     path.lineTo(161.279f, 83.2148f);
  34     path.lineTo(161.523f, 81.9941f);
  35     path.lineTo(162.012f, 79.1133f);
  36     path.lineTo(162.695f, 76.623f);
  37     path.lineTo(162.305f, 73.4004f);
  38     path.lineTo(162.207f, 72.4238f);
  39     path.lineTo(163.477f, 71.4961f);
  40     path.quadTo(163.525f, 71.0078f, 163.525f, 70.2754f);
  41     path.quadTo(163.525f, 68.8594f, 162.793f, 67.1992f);
  42     path.lineTo(163.623f, 64.6113f);
  43     path.lineTo(162.598f, 63.6836f);
  44     path.lineTo(163.184f, 61.0957f);
  45     path.lineTo(162.695f, 60.8027f);
  46     path.lineTo(162.988f, 52.5996f);
  47     path.lineTo(162.402f, 52.1113f);
  48     path.lineTo(161.914f, 50.1094f);
  49     path.lineTo(161.523f, 50.5f);
  50     path.quadTo(160.645f, 50.5f, 160.327f, 50.6465f);
  51     path.quadTo(160.01f, 50.793f, 159.424f, 51.4766f);
  52     path.lineTo(158.203f, 52.7949f);
  53     path.lineTo(156.299f, 52.0137f);
  54     path.quadTo(154.346f, 52.5996f, 154.004f, 52.5996f);
  55     path.quadTo(154.053f, 52.5996f, 152.783f, 52.4043f);
  56     path.quadTo(151.465f, 51.3789f, 150.488f, 51.3789f);
  57     path.quadTo(150.342f, 51.3789f, 150.269f, 51.4033f);
  58     path.quadTo(150.195f, 51.4277f, 150.098f, 51.4766f);
  59     path.lineTo(145.02f, 51.916f);
  60     path.lineTo(139.893f, 51.2812f);
  61     path.lineTo(135.693f, 51.623f);
  62     path.lineTo(133.594f, 51.0859f);
  63     path.lineTo(130.42f, 52.0137f);
  64     path.lineTo(125.488f, 51.4766f);
  65     path.lineTo(124.219f, 51.623f);
  66     path.lineTo(122.705f, 50.5f);
  67     path.lineTo(122.217f, 51.7207f);
  68     path.lineTo(116.211f, 51.623f);
  69     path.quadTo(114.99f, 52.7949f, 114.99f, 53.8203f);
  70     path.lineTo(115.576f, 57.6777f);
  71     path.quadTo(115.723f, 58.2148f, 115.723f, 59.2891f);
  72     path.quadTo(115.723f, 60.2656f, 115.186f, 61.1934f);
  73     path.lineTo(115.479f, 64.2207f);
  74     path.quadTo(114.795f, 64.6602f, 114.648f, 65.0752f);
  75     path.quadTo(114.502f, 65.4902f, 114.502f, 66.3203f);
  76     path.quadTo(114.893f, 66.9551f, 115.918f, 67.1992f);
  77     path.lineTo(116.016f, 69.2988f);
  78     path.lineTo(116.016f, 75.6953f);
  79     path.lineTo(116.016f, 75.9883f);
  80     path.lineTo(116.113f, 77.209f);
  81     path.quadTo(116.113f, 77.6484f, 115.479f, 78.0879f);
  82     path.lineTo(115.576f, 79.1133f);
  83     path.lineTo(116.309f, 82.0918f);
  84     path.lineTo(116.406f, 83.1172f);
  85     path.quadTo(116.406f, 85.2656f, 114.404f, 86.291f);
  86     path.lineTo(111.914f, 87.5117f);
  87     path.lineTo(109.717f, 88.7812f);
  88     path.lineTo(108.398f, 89.416f);
  89     path.lineTo(108.105f, 88.9766f);
  90     path.lineTo(107.617f, 88.9766f);
  91     path.quadTo(107.08f, 87.9023f, 107.08f, 87.0234f);
  92     path.quadTo(107.08f, 85.998f, 107.324f, 85.6074f);
  93     path.lineTo(108.398f, 83.1172f);
  94     path.lineTo(108.887f, 81.4082f);
  95     path.lineTo(109.619f, 81.1152f);
  96     path.lineTo(109.717f, 79.5039f);
  97     path.lineTo(108.887f, 78.7227f);
  98     path.quadTo(109.619f, 77.3555f, 109.619f, 77.1113f);
  99     path.quadTo(109.619f, 76.8672f, 108.887f, 75.5977f);
 100     path.lineTo(108.789f, 74.7188f);
 101     path.lineTo(109.18f, 66.6133f);
 102     path.lineTo(108.691f, 64.416f);
 103     path.quadTo(108.691f, 63.293f, 109.521f, 62.707f);
 104     path.lineTo(110.205f, 62.1211f);
 105     path.quadTo(110.449f, 61.877f, 110.596f, 60.998f);
 106     path.quadTo(109.082f, 60.4609f, 109.082f, 59.1914f);
 107     path.lineTo(109.082f, 58.9961f);
 108     path.lineTo(109.424f, 55.2852f);
 109     path.lineTo(108.789f, 53.7227f);
 110     path.lineTo(108.789f, 48.1074f);
 111     path.lineTo(108.594f, 45.3242f);
 112     path.lineTo(108.691f, 43.8105f);
 113     path.lineTo(107.91f, 43.9082f);
 114     path.lineTo(107.715f, 44.1035f);
 115     path.lineTo(107.324f, 42.7852f);
 116     path.lineTo(107.715f, 43.1758f);
 117     path.lineTo(107.91f, 41.3203f);
 118     path.quadTo(109.717f, 40.2949f, 109.717f, 39.2207f);
 119     path.quadTo(109.717f, 37.707f, 107.715f, 37.4141f);
 120     path.lineTo(106.982f, 33.9961f);
 121     path.lineTo(106.982f, 33.2148f);
 122     path.lineTo(106.689f, 29.3086f);
 123     path.lineTo(106.689f, 26.1836f);
 124     path.lineTo(107.91f, 25.6953f);
 125     path.lineTo(109.521f, 24.5234f);
 126     path.lineTo(112.109f, 23.3027f);
 127     path.lineTo(114.014f, 22.5215f);
 128     path.lineTo(115.479f, 23.1074f);
 129     path.quadTo(115.479f, 24.0352f, 116.113f, 25.1094f);
 130     path.quadTo(115.381f, 25.8906f, 115.259f, 26.3789f);
 131     path.quadTo(115.137f, 26.8672f, 114.99f, 28.8203f);
 132     path.lineTo(114.893f, 29.9922f);
 133     path.lineTo(115.82f, 33.4102f);
 134     path.lineTo(116.016f, 35.4121f);
 135     path.lineTo(115.576f, 35.4121f);
 136     path.lineTo(114.697f, 37.707f);
 137     path.lineTo(115.381f, 38.4883f);
 138     path.lineTo(115.186f, 39.5137f);
 139     path.lineTo(114.697f, 40.3926f);
 140     path.lineTo(114.209f, 41.418f);
 141     path.lineTo(114.404f, 42.4922f);
 142     path.lineTo(114.795f, 43.3223f);
 143     path.quadTo(115.186f, 44.1035f, 115.186f, 46.4961f);
 144     path.lineTo(116.309f, 46.7891f);
 145     path.lineTo(125, 47.2773f);
 146     path.lineTo(126.318f, 48.2051f);
 147     path.lineTo(129.59f, 48.5957f);
 148     path.lineTo(130.615f, 48.498f);
 149     path.lineTo(130.908f, 48.0098f);
 150     path.lineTo(134.277f, 48.2051f);
 151     path.lineTo(134.717f, 48.3027f);
 152     path.quadTo(135.4f, 47.7168f, 136.084f, 47.7168f);
 153     path.lineTo(137.109f, 47.8145f);
 154     path.lineTo(137.109f, 48.2051f);
 155     path.lineTo(137.695f, 48.5957f);
 156     path.lineTo(138.818f, 48.498f);
 157     path.lineTo(144.189f, 48.4004f);
 158     path.lineTo(146.191f, 48.2051f);
 159     path.lineTo(147.998f, 48.791f);
 160     path.quadTo(148.877f, 47.5215f, 150.098f, 47.5215f);
 161     path.lineTo(150.293f, 47.5215f);
 162     path.lineTo(152.783f, 47.7168f);
 163     path.lineTo(157.52f, 47.2773f);
 164     path.lineTo(160.303f, 47.4238f);
 165     path.lineTo(161.279f, 47.1797f);
 166     path.lineTo(161.621f, 46.1055f);
 167     path.lineTo(162.5f, 43.9082f);
 168     path.lineTo(162.305f, 38.293f);
 169     path.lineTo(162.5f, 37.1211f);
 170     path.lineTo(161.816f, 35.998f);
 171     path.lineTo(160.596f, 34.7773f);
 172     path.lineTo(160.596f, 32.6777f);
 173     path.lineTo(160.303f, 30.4805f);
 174     path.lineTo(160.889f, 29.4062f);
 175     path.quadTo(160.303f, 27.4043f, 160.303f, 26.2812f);
 176     path.quadTo(160.303f, 25.3535f, 160.889f, 25.207f);
 177     path.lineTo(162.207f, 25.0117f);
 178     path.lineTo(163.721f, 23.8887f);
 179     path.lineTo(164.893f, 23.8887f);
 180     path.quadTo(165.625f, 23.6934f, 166.797f, 22.5215f);
 181     path.lineTo(168.213f, 23.2051f);
 182     path.lineTo(168.701f, 25.5f);
 183     path.lineTo(169.092f, 26.8184f);
 184     path.lineTo(167.676f, 31.9941f);
 185     path.lineTo(168.018f, 34.6797f);
 186     path.lineTo(167.822f, 35.8027f);
 187     path.lineTo(167.285f, 35.8027f);
 188     path.quadTo(166.602f, 35.8027f, 166.602f, 36.7793f);
 189     path.quadTo(166.846f, 37.3652f, 167.578f, 37.707f);
 190     path.lineTo(168.506f, 38.1953f);
 191     path.lineTo(168.799f, 39.5137f);
 192     path.lineTo(169.092f, 41.5156f);
 193     path.lineTo(168.994f, 42.1016f);
 194     path.lineTo(168.213f, 43.6152f);
 195     path.lineTo(168.408f, 52.502f);
 196     path.lineTo(168.213f, 60.1191f);
 197     path.lineTo(168.994f, 61.291f);
 198     path.quadTo(168.604f, 63.0488f, 168.604f, 63.9766f);
 199     path.lineTo(168.604f, 64.123f);
 200     path.lineTo(168.604f, 64.3184f);
 201     path.lineTo(168.604f, 64.9043f);
 202     path.lineTo(168.604f, 66.0762f);
 203     path.quadTo(167.578f, 67.1504f, 167.578f, 67.5898f);
 204     path.quadTo(167.578f, 67.7852f, 167.676f, 67.7852f);
 205     path.lineTo(168.994f, 70.0801f);
 206     path.lineTo(168.701f, 76.7207f);
 207     path.lineTo(169.824f, 83.4102f);
 208     path.close();
 209     return path;
 210 }
 211
 212 /* Generated on a Mac with:
 213  * paint.setTypeface(SkTypeface::CreateByName("Hiragino Maru Gothic Pro"));
 214  * const unsigned char hyphen[] = { 0xE3, 0x83, 0xBC };
 215  * paint.getTextPath(hyphen, SK_ARRAY_COUNT(hyphen), 400, 80, &textPath);
 216  */
 217 static SkPath hiragino_maru_gothic_pro_dash() {
 218     SkPath path;
 219     path.moveTo(488, 55.1f);
 220     path.cubicTo(490.5f, 55.1f, 491.9f, 53.5f, 491.9f, 50.8f);
 221     path.cubicTo(491.9f, 48.2f, 490.5f, 46.3f, 487.9f, 46.3f);
 222     path.lineTo(412, 46.3f);
 223     path.cubicTo(409.4f, 46.3f, 408, 48.2f, 408, 50.8f);
 224     path.cubicTo(408, 53.5f, 409.4f, 55.1f, 411.9f, 55.1f);
 225     path.lineTo(488, 55.1f);
 226     path.close();
 227     return path;
 228 }
 229
 230 static void show_bold(SkCanvas* canvas, const void* text, int len,
 231                       SkScalar x, SkScalar y, const SkPaint& paint) {
 232         SkPaint p(paint);
 233         canvas->drawText(text, len, x, y, p);
 234         p.setFakeBoldText(true);
 235         canvas->drawText(text, len, x, y + SkIntToScalar(120), p);
 236 }
 237
 238 static void path_bold(SkCanvas* canvas, const SkPath& path, const SkPaint& paint) {
 239         SkPaint p(paint);
 240         canvas->drawPath(path, p);
 241         p.setStyle(SkPaint::kStrokeAndFill_Style);
 242         SkScalar fakeBoldScale = SkScalarInterpFunc(p.getTextSize(),
 243                 kStdFakeBoldInterpKeys, kStdFakeBoldInterpValues,
 244                 kStdFakeBoldInterpLength);
 245         SkScalar extra = p.getTextSize() * fakeBoldScale;
 246         p.setStrokeWidth(extra);
 247         canvas->save();
 248         canvas->translate(0, 120);
 249         canvas->drawPath(path, p);
 250         canvas->restore();
 251 }
 252
 253 DEF_SIMPLE_GM_BG_NAME(strokefill, canvas, 640, 480, SK_ColorWHITE,
 254                       SkString("stroke-fill")) {
 255         SkScalar x = SkIntToScalar(100);
 256         SkScalar y = SkIntToScalar(88);
 257
 258         SkPaint paint;
 259         paint.setAntiAlias(true);
 260         paint.setTextSize(SkIntToScalar(100));
 261         paint.setStrokeWidth(SkIntToScalar(5));
 262
 263         // use paths instead of text to test the path data on all platforms, since the
 264         // Mac-specific font may change or is not available everywhere
 265         path_bold(canvas, papyrus_hello(), paint);
 266         path_bold(canvas, hiragino_maru_gothic_pro_dash(), paint);
 267
 268         // use the portable typeface to generically test the fake bold code everywhere
 269         // (as long as the freetype option to do the bolding itself isn't enabled)
 270         sk_tool_utils::set_portable_typeface(&paint, "serif");
 271         const unsigned char hiThere[] = "Hi There";
 272         show_bold(canvas, hiThere, SK_ARRAY_COUNT(hiThere), x + SkIntToScalar(430), y, paint);
 273
 274         paint.setStyle(SkPaint::kStrokeAndFill_Style);
 275
 276         SkPath path;
 277         path.setFillType(SkPath::kWinding_FillType);
 278         path.addCircle(x, y + SkIntToScalar(200), SkIntToScalar(50), SkPath::kCW_Direction);
 279         path.addCircle(x, y + SkIntToScalar(200), SkIntToScalar(40), SkPath::kCCW_Direction);
 280         canvas->drawPath(path, paint);
 281
 282         SkPath path2;
 283         path2.setFillType(SkPath::kWinding_FillType);
 284         path2.addCircle(x + SkIntToScalar(120), y + SkIntToScalar(200), SkIntToScalar(50), SkPath::kCCW_Direction);
 285         path2.addCircle(x + SkIntToScalar(120), y + SkIntToScalar(200), SkIntToScalar(40), SkPath::kCW_Direction);
 286         canvas->drawPath(path2, paint);
 287
 288         path2.reset();
 289         path2.addCircle(x + SkIntToScalar(240), y + SkIntToScalar(200), SkIntToScalar(50), SkPath::kCCW_Direction);
 290         canvas->drawPath(path2, paint);
 291         SkASSERT(SkPathPriv::CheapIsFirstDirection(path2, SkPathPriv::kCCW_FirstDirection));
 292
 293         path2.reset();
 294         SkASSERT(!SkPathPriv::CheapComputeFirstDirection(path2, nullptr));
 295         path2.addCircle(x + SkIntToScalar(360), y + SkIntToScalar(200), SkIntToScalar(50), SkPath::kCW_Direction);
 296         SkASSERT(SkPathPriv::CheapIsFirstDirection(path2, SkPathPriv::kCW_FirstDirection));
 297         canvas->drawPath(path2, paint);
 298
 299         SkRect r = SkRect::MakeXYWH(x - SkIntToScalar(50), y + SkIntToScalar(280),
 300                                     SkIntToScalar(100), SkIntToScalar(100));
 301         SkPath path3;
 302         path3.setFillType(SkPath::kWinding_FillType);
 303         path3.addRect(r, SkPath::kCW_Direction);
 304         r.inset(SkIntToScalar(10), SkIntToScalar(10));
 305         path3.addRect(r, SkPath::kCCW_Direction);
 306         canvas->drawPath(path3, paint);
 307
 308         r = SkRect::MakeXYWH(x + SkIntToScalar(70), y + SkIntToScalar(280),
 309                              SkIntToScalar(100), SkIntToScalar(100));
 310         SkPath path4;
 311         path4.setFillType(SkPath::kWinding_FillType);
 312         path4.addRect(r, SkPath::kCCW_Direction);
 313         r.inset(SkIntToScalar(10), SkIntToScalar(10));
 314         path4.addRect(r, SkPath::kCW_Direction);
 315         canvas->drawPath(path4, paint);
 316
 317         r = SkRect::MakeXYWH(x + SkIntToScalar(190), y + SkIntToScalar(280),
 318                              SkIntToScalar(100), SkIntToScalar(100));
 319         path4.reset();
 320         SkASSERT(!SkPathPriv::CheapComputeFirstDirection(path4, nullptr));
 321         path4.addRect(r, SkPath::kCCW_Direction);
 322         SkASSERT(SkPathPriv::CheapIsFirstDirection(path4, SkPathPriv::kCCW_FirstDirection));
 323         path4.moveTo(0, 0); // test for crbug.com/247770
 324         canvas->drawPath(path4, paint);
 325
 326         r = SkRect::MakeXYWH(x + SkIntToScalar(310), y + SkIntToScalar(280),
 327                              SkIntToScalar(100), SkIntToScalar(100));
 328         path4.reset();
 329         SkASSERT(!SkPathPriv::CheapComputeFirstDirection(path4, nullptr));
 330         path4.addRect(r, SkPath::kCW_Direction);
 331         SkASSERT(SkPathPriv::CheapIsFirstDirection(path4, SkPathPriv::kCW_FirstDirection));
 332         path4.moveTo(0, 0); // test for crbug.com/247770
 333         canvas->drawPath(path4, paint);
 334 }
 335
 336 DEF_SIMPLE_GM(bug339297, canvas, 640, 480) {
 337     SkPath path;
 338     path.moveTo(-469515, -10354890);
 339     path.cubicTo(771919.62f, -10411179, 2013360.1f, -10243774, 3195542.8f, -9860664);
 340     path.lineTo(3195550, -9860655);
 341     path.lineTo(3195539, -9860652);
 342     path.lineTo(3195539, -9860652);
 343     path.lineTo(3195539, -9860652);
 344     path.cubicTo(2013358.1f, -10243761, 771919.25f, -10411166, -469513.84f, -10354877);
 345     path.lineTo(-469515, -10354890);
 346     path.close();
 347
 348     canvas->translate(258, 10365663);
 349
 350     SkPaint paint;
 351     paint.setAntiAlias(true);
 352     paint.setColor(SK_ColorBLACK);
 353     paint.setStyle(SkPaint::kFill_Style);
 354     canvas->drawPath(path, paint);
 355
 356     paint.setColor(SK_ColorRED);
 357     paint.setStyle(SkPaint::kStroke_Style);
 358     paint.setStrokeWidth(1);
 359     canvas->drawPath(path, paint);
 360 }