reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 1 | /* |
humper@google.com | a99a92c | 2013-02-20 16:42:06 +0000 | [diff] [blame] | 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 | */ |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 7 | |
| 8 | #include "gm.h" |
humper@google.com | 7c7292c | 2013-01-04 20:29:03 +0000 | [diff] [blame] | 9 | #include "SkBlurMask.h" |
robertphillips@google.com | b706117 | 2013-09-06 14:16:12 +0000 | [diff] [blame] | 10 | #include "SkBlurMaskFilter.h" |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 11 | #include "SkCanvas.h" |
| 12 | #include "SkPath.h" |
| 13 | |
| 14 | #define STROKE_WIDTH SkIntToScalar(10) |
| 15 | |
| 16 | typedef void (*Proc)(SkCanvas*, const SkRect&, const SkPaint&); |
| 17 | |
| 18 | static void fill_rect(SkCanvas* canvas, const SkRect& r, const SkPaint& p) { |
| 19 | canvas->drawRect(r, p); |
| 20 | } |
| 21 | |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 22 | static void draw_donut(SkCanvas* canvas, const SkRect& r, const SkPaint& p) { |
| 23 | SkRect rect; |
| 24 | SkPath path; |
skia.committer@gmail.com | 3458716 | 2012-11-20 02:01:23 +0000 | [diff] [blame] | 25 | |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 26 | rect = r; |
| 27 | rect.outset(STROKE_WIDTH/2, STROKE_WIDTH/2); |
| 28 | path.addRect(rect); |
| 29 | rect = r; |
| 30 | rect.inset(STROKE_WIDTH/2, STROKE_WIDTH/2); |
skia.committer@gmail.com | 3458716 | 2012-11-20 02:01:23 +0000 | [diff] [blame] | 31 | |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 32 | path.addRect(rect); |
| 33 | path.setFillType(SkPath::kEvenOdd_FillType); |
skia.committer@gmail.com | 3458716 | 2012-11-20 02:01:23 +0000 | [diff] [blame] | 34 | |
reed@google.com | 808b70f | 2012-11-19 16:14:02 +0000 | [diff] [blame] | 35 | canvas->drawPath(path, p); |
| 36 | } |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 37 | |
reed@google.com | 808b70f | 2012-11-19 16:14:02 +0000 | [diff] [blame] | 38 | static void draw_donut_skewed(SkCanvas* canvas, const SkRect& r, const SkPaint& p) { |
| 39 | SkRect rect; |
| 40 | SkPath path; |
skia.committer@gmail.com | 3458716 | 2012-11-20 02:01:23 +0000 | [diff] [blame] | 41 | |
reed@google.com | 808b70f | 2012-11-19 16:14:02 +0000 | [diff] [blame] | 42 | rect = r; |
| 43 | rect.outset(STROKE_WIDTH/2, STROKE_WIDTH/2); |
| 44 | path.addRect(rect); |
| 45 | rect = r; |
| 46 | rect.inset(STROKE_WIDTH/2, STROKE_WIDTH/2); |
skia.committer@gmail.com | 3458716 | 2012-11-20 02:01:23 +0000 | [diff] [blame] | 47 | |
reed@google.com | 808b70f | 2012-11-19 16:14:02 +0000 | [diff] [blame] | 48 | rect.offset(7, -7); |
skia.committer@gmail.com | 3458716 | 2012-11-20 02:01:23 +0000 | [diff] [blame] | 49 | |
reed@google.com | 808b70f | 2012-11-19 16:14:02 +0000 | [diff] [blame] | 50 | path.addRect(rect); |
| 51 | path.setFillType(SkPath::kEvenOdd_FillType); |
skia.committer@gmail.com | 3458716 | 2012-11-20 02:01:23 +0000 | [diff] [blame] | 52 | |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 53 | canvas->drawPath(path, p); |
| 54 | } |
| 55 | |
reed@google.com | 53007a2 | 2012-11-26 14:39:50 +0000 | [diff] [blame] | 56 | #include "SkGradientShader.h" |
| 57 | |
joshualitt | 341400e | 2014-12-18 11:54:13 -0800 | [diff] [blame] | 58 | /* |
| 59 | * Spits out a dummy gradient to test blur with shader on paint |
| 60 | */ |
| 61 | static SkShader* MakeRadial() { |
| 62 | SkPoint pts[2] = { |
| 63 | { 0, 0 }, |
| 64 | { SkIntToScalar(100), SkIntToScalar(100) } |
| 65 | }; |
| 66 | SkShader::TileMode tm = SkShader::kClamp_TileMode; |
| 67 | const SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, }; |
| 68 | const SkScalar pos[] = { SK_Scalar1/4, SK_Scalar1*3/4 }; |
| 69 | SkMatrix scale; |
| 70 | scale.setScale(0.5f, 0.5f); |
| 71 | scale.postTranslate(25.f, 25.f); |
| 72 | SkPoint center0, center1; |
| 73 | center0.set(SkScalarAve(pts[0].fX, pts[1].fX), |
| 74 | SkScalarAve(pts[0].fY, pts[1].fY)); |
| 75 | center1.set(SkScalarInterp(pts[0].fX, pts[1].fX, SkIntToScalar(3)/5), |
| 76 | SkScalarInterp(pts[0].fY, pts[1].fY, SkIntToScalar(1)/4)); |
reed | 71a6cbf | 2015-05-04 08:32:51 -0700 | [diff] [blame] | 77 | return SkGradientShader::CreateTwoPointConical(center1, (pts[1].fX - pts[0].fX) / 7, |
joshualitt | 341400e | 2014-12-18 11:54:13 -0800 | [diff] [blame] | 78 | center0, (pts[1].fX - pts[0].fX) / 2, |
| 79 | colors, pos, SK_ARRAY_COUNT(colors), tm, |
| 80 | 0, &scale); |
| 81 | } |
| 82 | |
reed@google.com | 53007a2 | 2012-11-26 14:39:50 +0000 | [diff] [blame] | 83 | typedef void (*PaintProc)(SkPaint*, SkScalar width); |
| 84 | |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 85 | class BlurRectGM : public skiagm::GM { |
commit-bot@chromium.org | e396455 | 2014-04-28 16:25:35 +0000 | [diff] [blame] | 86 | SkAutoTUnref<SkMaskFilter> fMaskFilters[kLastEnum_SkBlurStyle + 1]; |
humper@google.com | a99a92c | 2013-02-20 16:42:06 +0000 | [diff] [blame] | 87 | SkString fName; |
humper@google.com | a99a92c | 2013-02-20 16:42:06 +0000 | [diff] [blame] | 88 | SkAlpha fAlpha; |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 89 | public: |
commit-bot@chromium.org | 7cced56 | 2014-01-10 23:10:13 +0000 | [diff] [blame] | 90 | BlurRectGM(const char name[], U8CPU alpha) |
| 91 | : fName(name) |
| 92 | , fAlpha(SkToU8(alpha)) { |
reed@google.com | 57850b9 | 2012-12-17 21:20:53 +0000 | [diff] [blame] | 93 | } |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 94 | |
| 95 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 96 | void onOnceBeforeDraw() override { |
commit-bot@chromium.org | e396455 | 2014-04-28 16:25:35 +0000 | [diff] [blame] | 97 | for (int i = 0; i <= kLastEnum_SkBlurStyle; ++i) { |
| 98 | fMaskFilters[i].reset(SkBlurMaskFilter::Create((SkBlurStyle)i, |
commit-bot@chromium.org | 7cced56 | 2014-01-10 23:10:13 +0000 | [diff] [blame] | 99 | SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(STROKE_WIDTH/2)), |
| 100 | SkBlurMaskFilter::kHighQuality_BlurFlag)); |
| 101 | } |
| 102 | } |
| 103 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 104 | SkString onShortName() override { |
reed@google.com | 53007a2 | 2012-11-26 14:39:50 +0000 | [diff] [blame] | 105 | return fName; |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 106 | } |
| 107 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 108 | SkISize onISize() override { |
joshualitt | 341400e | 2014-12-18 11:54:13 -0800 | [diff] [blame] | 109 | return SkISize::Make(860, 820); |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 110 | } |
| 111 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 112 | void onDraw(SkCanvas* canvas) override { |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 113 | canvas->translate(STROKE_WIDTH*3/2, STROKE_WIDTH*3/2); |
| 114 | |
commit-bot@chromium.org | 7cced56 | 2014-01-10 23:10:13 +0000 | [diff] [blame] | 115 | SkRect r = { 0, 0, 100, 50 }; |
| 116 | SkScalar scales[] = { SK_Scalar1, 0.6f }; |
skia.committer@gmail.com | 8ccf590 | 2012-11-27 02:01:19 +0000 | [diff] [blame] | 117 | |
commit-bot@chromium.org | 7cced56 | 2014-01-10 23:10:13 +0000 | [diff] [blame] | 118 | for (size_t s = 0; s < SK_ARRAY_COUNT(scales); ++s) { |
| 119 | canvas->save(); |
| 120 | for (size_t f = 0; f < SK_ARRAY_COUNT(fMaskFilters); ++f) { |
| 121 | SkPaint paint; |
| 122 | paint.setMaskFilter(fMaskFilters[f]); |
| 123 | paint.setAlpha(fAlpha); |
| 124 | |
joshualitt | 341400e | 2014-12-18 11:54:13 -0800 | [diff] [blame] | 125 | SkPaint paintWithRadial = paint; |
| 126 | paintWithRadial.setShader(MakeRadial())->unref(); |
| 127 | |
commit-bot@chromium.org | 7cced56 | 2014-01-10 23:10:13 +0000 | [diff] [blame] | 128 | static const Proc procs[] = { |
| 129 | fill_rect, draw_donut, draw_donut_skewed |
| 130 | }; |
| 131 | |
| 132 | canvas->save(); |
| 133 | canvas->scale(scales[s], scales[s]); |
| 134 | this->drawProcs(canvas, r, paint, false, procs, SK_ARRAY_COUNT(procs)); |
| 135 | canvas->translate(r.width() * 4/3, 0); |
joshualitt | 341400e | 2014-12-18 11:54:13 -0800 | [diff] [blame] | 136 | this->drawProcs(canvas, r, paintWithRadial, false, procs, SK_ARRAY_COUNT(procs)); |
| 137 | canvas->translate(r.width() * 4/3, 0); |
commit-bot@chromium.org | 7cced56 | 2014-01-10 23:10:13 +0000 | [diff] [blame] | 138 | this->drawProcs(canvas, r, paint, true, procs, SK_ARRAY_COUNT(procs)); |
joshualitt | 341400e | 2014-12-18 11:54:13 -0800 | [diff] [blame] | 139 | canvas->translate(r.width() * 4/3, 0); |
| 140 | this->drawProcs(canvas, r, paintWithRadial, true, procs, SK_ARRAY_COUNT(procs)); |
commit-bot@chromium.org | 7cced56 | 2014-01-10 23:10:13 +0000 | [diff] [blame] | 141 | canvas->restore(); |
| 142 | |
| 143 | canvas->translate(0, SK_ARRAY_COUNT(procs) * r.height() * 4/3 * scales[s]); |
| 144 | } |
| 145 | canvas->restore(); |
joshualitt | 341400e | 2014-12-18 11:54:13 -0800 | [diff] [blame] | 146 | canvas->translate(4 * r.width() * 4/3 * scales[s], 0); |
reed@google.com | 53007a2 | 2012-11-26 14:39:50 +0000 | [diff] [blame] | 147 | } |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 148 | } |
| 149 | |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 150 | private: |
| 151 | void drawProcs(SkCanvas* canvas, const SkRect& r, const SkPaint& paint, |
| 152 | bool doClip, const Proc procs[], size_t procsCount) { |
| 153 | SkAutoCanvasRestore acr(canvas, true); |
| 154 | for (size_t i = 0; i < procsCount; ++i) { |
| 155 | if (doClip) { |
| 156 | SkRect clipRect(r); |
| 157 | clipRect.inset(STROKE_WIDTH/2, STROKE_WIDTH/2); |
| 158 | canvas->save(); |
| 159 | canvas->clipRect(r); |
| 160 | } |
| 161 | procs[i](canvas, r, paint); |
| 162 | if (doClip) { |
| 163 | canvas->restore(); |
| 164 | } |
| 165 | canvas->translate(0, r.height() * 4/3); |
| 166 | } |
| 167 | } |
humper@google.com | a99a92c | 2013-02-20 16:42:06 +0000 | [diff] [blame] | 168 | private: |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 169 | typedef GM INHERITED; |
| 170 | }; |
| 171 | |
halcanary | 2a24338 | 2015-09-09 08:16:41 -0700 | [diff] [blame] | 172 | DEF_SIMPLE_GM(blurrect_gallery, canvas, 1200, 1024) { |
| 173 | const int fGMWidth = 1200; |
| 174 | const int fPadding = 10; |
| 175 | const int fMargin = 100; |
commit-bot@chromium.org | 3c1594a | 2014-05-28 21:52:12 +0000 | [diff] [blame] | 176 | |
commit-bot@chromium.org | 3c1594a | 2014-05-28 21:52:12 +0000 | [diff] [blame] | 177 | const int widths[] = {25, 5, 5, 100, 150, 25}; |
| 178 | const int heights[] = {100, 100, 5, 25, 150, 25}; |
| 179 | const SkBlurStyle styles[] = {kNormal_SkBlurStyle, kInner_SkBlurStyle, kOuter_SkBlurStyle}; |
| 180 | const float radii[] = {20, 5, 10}; |
| 181 | |
| 182 | canvas->translate(50,20); |
| 183 | |
| 184 | int cur_x = 0; |
| 185 | int cur_y = 0; |
| 186 | |
| 187 | int max_height = 0; |
| 188 | |
| 189 | for (size_t i = 0 ; i < SK_ARRAY_COUNT(widths) ; i++) { |
| 190 | int width = widths[i]; |
| 191 | int height = heights[i]; |
| 192 | SkRect r; |
| 193 | r.setWH(SkIntToScalar(width), SkIntToScalar(height)); |
| 194 | SkAutoCanvasRestore autoRestore(canvas, true); |
| 195 | |
| 196 | for (size_t j = 0 ; j < SK_ARRAY_COUNT(radii) ; j++) { |
| 197 | float radius = radii[j]; |
| 198 | for (size_t k = 0 ; k < SK_ARRAY_COUNT(styles) ; k++) { |
| 199 | SkBlurStyle style = styles[k]; |
| 200 | |
| 201 | SkMask mask; |
robertphillips | e80eb92 | 2015-12-17 11:33:12 -0800 | [diff] [blame] | 202 | if (!SkBlurMask::BlurRect(SkBlurMask::ConvertRadiusToSigma(radius), |
| 203 | &mask, r, style)) { |
| 204 | continue; |
| 205 | } |
commit-bot@chromium.org | 3c1594a | 2014-05-28 21:52:12 +0000 | [diff] [blame] | 206 | |
| 207 | SkAutoMaskFreeImage amfi(mask.fImage); |
| 208 | |
| 209 | SkBitmap bm; |
| 210 | bm.installMaskPixels(mask); |
| 211 | |
| 212 | if (cur_x + bm.width() >= fGMWidth - fMargin) { |
| 213 | cur_x = 0; |
| 214 | cur_y += max_height + fPadding; |
| 215 | max_height = 0; |
| 216 | } |
| 217 | |
| 218 | canvas->save(); |
commit-bot@chromium.org | 793ddd9 | 2014-05-28 22:42:31 +0000 | [diff] [blame] | 219 | canvas->translate((SkScalar)cur_x, (SkScalar)cur_y); |
commit-bot@chromium.org | 3c1594a | 2014-05-28 21:52:12 +0000 | [diff] [blame] | 220 | canvas->translate(-(bm.width() - r.width())/2, -(bm.height()-r.height())/2); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 221 | canvas->drawBitmap(bm, 0.f, 0.f, nullptr); |
commit-bot@chromium.org | 3c1594a | 2014-05-28 21:52:12 +0000 | [diff] [blame] | 222 | canvas->restore(); |
| 223 | |
| 224 | cur_x += bm.width() + fPadding; |
| 225 | if (bm.height() > max_height) |
| 226 | max_height = bm.height(); |
| 227 | } |
| 228 | } |
| 229 | } |
halcanary | 2a24338 | 2015-09-09 08:16:41 -0700 | [diff] [blame] | 230 | } |
humper@google.com | 7c7292c | 2013-01-04 20:29:03 +0000 | [diff] [blame] | 231 | |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 232 | ////////////////////////////////////////////////////////////////////////////// |
| 233 | |
commit-bot@chromium.org | 7cced56 | 2014-01-10 23:10:13 +0000 | [diff] [blame] | 234 | DEF_GM(return new BlurRectGM("blurrects", 0xFF);) |