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 | |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 8 | #include "gm/gm.h" |
Ben Wagner | 6a34f3a | 2019-05-01 10:59:30 -0400 | [diff] [blame] | 9 | #include "include/core/SkBitmap.h" |
| 10 | #include "include/core/SkBlurTypes.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 11 | #include "include/core/SkCanvas.h" |
Ben Wagner | 6a34f3a | 2019-05-01 10:59:30 -0400 | [diff] [blame] | 12 | #include "include/core/SkColor.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 13 | #include "include/core/SkMaskFilter.h" |
Ben Wagner | 6a34f3a | 2019-05-01 10:59:30 -0400 | [diff] [blame] | 14 | #include "include/core/SkMatrix.h" |
| 15 | #include "include/core/SkPaint.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 16 | #include "include/core/SkPath.h" |
Ben Wagner | 6a34f3a | 2019-05-01 10:59:30 -0400 | [diff] [blame] | 17 | #include "include/core/SkPoint.h" |
| 18 | #include "include/core/SkRect.h" |
| 19 | #include "include/core/SkRefCnt.h" |
| 20 | #include "include/core/SkScalar.h" |
| 21 | #include "include/core/SkShader.h" |
| 22 | #include "include/core/SkSize.h" |
| 23 | #include "include/core/SkString.h" |
| 24 | #include "include/core/SkTileMode.h" |
| 25 | #include "include/core/SkTypes.h" |
| 26 | #include "include/effects/SkGradientShader.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 27 | #include "include/private/SkTo.h" |
| 28 | #include "src/core/SkBlurMask.h" |
Ben Wagner | 6a34f3a | 2019-05-01 10:59:30 -0400 | [diff] [blame] | 29 | #include "src/core/SkMask.h" |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 30 | |
| 31 | #define STROKE_WIDTH SkIntToScalar(10) |
| 32 | |
| 33 | typedef void (*Proc)(SkCanvas*, const SkRect&, const SkPaint&); |
| 34 | |
| 35 | static void fill_rect(SkCanvas* canvas, const SkRect& r, const SkPaint& p) { |
| 36 | canvas->drawRect(r, p); |
| 37 | } |
| 38 | |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 39 | static void draw_donut(SkCanvas* canvas, const SkRect& r, const SkPaint& p) { |
| 40 | SkRect rect; |
| 41 | SkPath path; |
skia.committer@gmail.com | 3458716 | 2012-11-20 02:01:23 +0000 | [diff] [blame] | 42 | |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 43 | rect = r; |
| 44 | rect.outset(STROKE_WIDTH/2, STROKE_WIDTH/2); |
| 45 | path.addRect(rect); |
| 46 | rect = r; |
| 47 | rect.inset(STROKE_WIDTH/2, STROKE_WIDTH/2); |
skia.committer@gmail.com | 3458716 | 2012-11-20 02:01:23 +0000 | [diff] [blame] | 48 | |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 49 | path.addRect(rect); |
| 50 | path.setFillType(SkPath::kEvenOdd_FillType); |
skia.committer@gmail.com | 3458716 | 2012-11-20 02:01:23 +0000 | [diff] [blame] | 51 | |
reed@google.com | 808b70f | 2012-11-19 16:14:02 +0000 | [diff] [blame] | 52 | canvas->drawPath(path, p); |
| 53 | } |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 54 | |
reed@google.com | 808b70f | 2012-11-19 16:14:02 +0000 | [diff] [blame] | 55 | static void draw_donut_skewed(SkCanvas* canvas, const SkRect& r, const SkPaint& p) { |
| 56 | SkRect rect; |
| 57 | SkPath path; |
skia.committer@gmail.com | 3458716 | 2012-11-20 02:01:23 +0000 | [diff] [blame] | 58 | |
reed@google.com | 808b70f | 2012-11-19 16:14:02 +0000 | [diff] [blame] | 59 | rect = r; |
| 60 | rect.outset(STROKE_WIDTH/2, STROKE_WIDTH/2); |
| 61 | path.addRect(rect); |
| 62 | rect = r; |
| 63 | rect.inset(STROKE_WIDTH/2, STROKE_WIDTH/2); |
skia.committer@gmail.com | 3458716 | 2012-11-20 02:01:23 +0000 | [diff] [blame] | 64 | |
reed@google.com | 808b70f | 2012-11-19 16:14:02 +0000 | [diff] [blame] | 65 | rect.offset(7, -7); |
skia.committer@gmail.com | 3458716 | 2012-11-20 02:01:23 +0000 | [diff] [blame] | 66 | |
reed@google.com | 808b70f | 2012-11-19 16:14:02 +0000 | [diff] [blame] | 67 | path.addRect(rect); |
| 68 | path.setFillType(SkPath::kEvenOdd_FillType); |
skia.committer@gmail.com | 3458716 | 2012-11-20 02:01:23 +0000 | [diff] [blame] | 69 | |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 70 | canvas->drawPath(path, p); |
| 71 | } |
| 72 | |
joshualitt | 341400e | 2014-12-18 11:54:13 -0800 | [diff] [blame] | 73 | /* |
| 74 | * Spits out a dummy gradient to test blur with shader on paint |
| 75 | */ |
Robert Phillips | 09dfc47 | 2017-09-13 15:25:47 -0400 | [diff] [blame] | 76 | static sk_sp<SkShader> make_radial() { |
joshualitt | 341400e | 2014-12-18 11:54:13 -0800 | [diff] [blame] | 77 | SkPoint pts[2] = { |
| 78 | { 0, 0 }, |
| 79 | { SkIntToScalar(100), SkIntToScalar(100) } |
| 80 | }; |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 81 | SkTileMode tm = SkTileMode::kClamp; |
joshualitt | 341400e | 2014-12-18 11:54:13 -0800 | [diff] [blame] | 82 | const SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, }; |
| 83 | const SkScalar pos[] = { SK_Scalar1/4, SK_Scalar1*3/4 }; |
| 84 | SkMatrix scale; |
| 85 | scale.setScale(0.5f, 0.5f); |
| 86 | scale.postTranslate(25.f, 25.f); |
| 87 | SkPoint center0, center1; |
| 88 | center0.set(SkScalarAve(pts[0].fX, pts[1].fX), |
| 89 | SkScalarAve(pts[0].fY, pts[1].fY)); |
| 90 | center1.set(SkScalarInterp(pts[0].fX, pts[1].fX, SkIntToScalar(3)/5), |
| 91 | SkScalarInterp(pts[0].fY, pts[1].fY, SkIntToScalar(1)/4)); |
reed | 2ad1aa6 | 2016-03-09 09:50:50 -0800 | [diff] [blame] | 92 | return SkGradientShader::MakeTwoPointConical(center1, (pts[1].fX - pts[0].fX) / 7, |
| 93 | center0, (pts[1].fX - pts[0].fX) / 2, |
| 94 | colors, pos, SK_ARRAY_COUNT(colors), tm, |
| 95 | 0, &scale); |
joshualitt | 341400e | 2014-12-18 11:54:13 -0800 | [diff] [blame] | 96 | } |
| 97 | |
reed@google.com | 53007a2 | 2012-11-26 14:39:50 +0000 | [diff] [blame] | 98 | typedef void (*PaintProc)(SkPaint*, SkScalar width); |
| 99 | |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 100 | class BlurRectGM : public skiagm::GM { |
reed | efdfd51 | 2016-04-04 10:02:58 -0700 | [diff] [blame] | 101 | sk_sp<SkMaskFilter> fMaskFilters[kLastEnum_SkBlurStyle + 1]; |
humper@google.com | a99a92c | 2013-02-20 16:42:06 +0000 | [diff] [blame] | 102 | SkString fName; |
humper@google.com | a99a92c | 2013-02-20 16:42:06 +0000 | [diff] [blame] | 103 | SkAlpha fAlpha; |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 104 | public: |
commit-bot@chromium.org | 7cced56 | 2014-01-10 23:10:13 +0000 | [diff] [blame] | 105 | BlurRectGM(const char name[], U8CPU alpha) |
| 106 | : fName(name) |
| 107 | , fAlpha(SkToU8(alpha)) { |
reed@google.com | 57850b9 | 2012-12-17 21:20:53 +0000 | [diff] [blame] | 108 | } |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 109 | |
| 110 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 111 | void onOnceBeforeDraw() override { |
commit-bot@chromium.org | e396455 | 2014-04-28 16:25:35 +0000 | [diff] [blame] | 112 | for (int i = 0; i <= kLastEnum_SkBlurStyle; ++i) { |
Mike Reed | 1be1f8d | 2018-03-14 13:01:17 -0400 | [diff] [blame] | 113 | fMaskFilters[i] = SkMaskFilter::MakeBlur((SkBlurStyle)i, |
| 114 | SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(STROKE_WIDTH/2))); |
commit-bot@chromium.org | 7cced56 | 2014-01-10 23:10:13 +0000 | [diff] [blame] | 115 | } |
| 116 | } |
| 117 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 118 | SkString onShortName() override { |
reed@google.com | 53007a2 | 2012-11-26 14:39:50 +0000 | [diff] [blame] | 119 | return fName; |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 120 | } |
| 121 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 122 | SkISize onISize() override { |
joshualitt | 341400e | 2014-12-18 11:54:13 -0800 | [diff] [blame] | 123 | return SkISize::Make(860, 820); |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 124 | } |
| 125 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 126 | void onDraw(SkCanvas* canvas) override { |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 127 | canvas->translate(STROKE_WIDTH*3/2, STROKE_WIDTH*3/2); |
| 128 | |
commit-bot@chromium.org | 7cced56 | 2014-01-10 23:10:13 +0000 | [diff] [blame] | 129 | SkRect r = { 0, 0, 100, 50 }; |
| 130 | SkScalar scales[] = { SK_Scalar1, 0.6f }; |
skia.committer@gmail.com | 8ccf590 | 2012-11-27 02:01:19 +0000 | [diff] [blame] | 131 | |
commit-bot@chromium.org | 7cced56 | 2014-01-10 23:10:13 +0000 | [diff] [blame] | 132 | for (size_t s = 0; s < SK_ARRAY_COUNT(scales); ++s) { |
| 133 | canvas->save(); |
| 134 | for (size_t f = 0; f < SK_ARRAY_COUNT(fMaskFilters); ++f) { |
| 135 | SkPaint paint; |
| 136 | paint.setMaskFilter(fMaskFilters[f]); |
| 137 | paint.setAlpha(fAlpha); |
| 138 | |
joshualitt | 341400e | 2014-12-18 11:54:13 -0800 | [diff] [blame] | 139 | SkPaint paintWithRadial = paint; |
Robert Phillips | 09dfc47 | 2017-09-13 15:25:47 -0400 | [diff] [blame] | 140 | paintWithRadial.setShader(make_radial()); |
joshualitt | 341400e | 2014-12-18 11:54:13 -0800 | [diff] [blame] | 141 | |
mtklein | dbfd7ab | 2016-09-01 11:24:54 -0700 | [diff] [blame] | 142 | constexpr Proc procs[] = { |
commit-bot@chromium.org | 7cced56 | 2014-01-10 23:10:13 +0000 | [diff] [blame] | 143 | fill_rect, draw_donut, draw_donut_skewed |
| 144 | }; |
| 145 | |
| 146 | canvas->save(); |
| 147 | canvas->scale(scales[s], scales[s]); |
| 148 | this->drawProcs(canvas, r, paint, false, procs, SK_ARRAY_COUNT(procs)); |
| 149 | canvas->translate(r.width() * 4/3, 0); |
joshualitt | 341400e | 2014-12-18 11:54:13 -0800 | [diff] [blame] | 150 | this->drawProcs(canvas, r, paintWithRadial, false, procs, SK_ARRAY_COUNT(procs)); |
| 151 | canvas->translate(r.width() * 4/3, 0); |
commit-bot@chromium.org | 7cced56 | 2014-01-10 23:10:13 +0000 | [diff] [blame] | 152 | this->drawProcs(canvas, r, paint, true, procs, SK_ARRAY_COUNT(procs)); |
joshualitt | 341400e | 2014-12-18 11:54:13 -0800 | [diff] [blame] | 153 | canvas->translate(r.width() * 4/3, 0); |
| 154 | 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] | 155 | canvas->restore(); |
| 156 | |
| 157 | canvas->translate(0, SK_ARRAY_COUNT(procs) * r.height() * 4/3 * scales[s]); |
| 158 | } |
| 159 | canvas->restore(); |
joshualitt | 341400e | 2014-12-18 11:54:13 -0800 | [diff] [blame] | 160 | canvas->translate(4 * r.width() * 4/3 * scales[s], 0); |
reed@google.com | 53007a2 | 2012-11-26 14:39:50 +0000 | [diff] [blame] | 161 | } |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 162 | } |
| 163 | |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 164 | private: |
| 165 | void drawProcs(SkCanvas* canvas, const SkRect& r, const SkPaint& paint, |
| 166 | bool doClip, const Proc procs[], size_t procsCount) { |
| 167 | SkAutoCanvasRestore acr(canvas, true); |
| 168 | for (size_t i = 0; i < procsCount; ++i) { |
| 169 | if (doClip) { |
| 170 | SkRect clipRect(r); |
| 171 | clipRect.inset(STROKE_WIDTH/2, STROKE_WIDTH/2); |
| 172 | canvas->save(); |
| 173 | canvas->clipRect(r); |
| 174 | } |
| 175 | procs[i](canvas, r, paint); |
| 176 | if (doClip) { |
| 177 | canvas->restore(); |
| 178 | } |
| 179 | canvas->translate(0, r.height() * 4/3); |
| 180 | } |
| 181 | } |
humper@google.com | a99a92c | 2013-02-20 16:42:06 +0000 | [diff] [blame] | 182 | private: |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 183 | typedef GM INHERITED; |
| 184 | }; |
| 185 | |
halcanary | 2a24338 | 2015-09-09 08:16:41 -0700 | [diff] [blame] | 186 | DEF_SIMPLE_GM(blurrect_gallery, canvas, 1200, 1024) { |
| 187 | const int fGMWidth = 1200; |
| 188 | const int fPadding = 10; |
| 189 | const int fMargin = 100; |
commit-bot@chromium.org | 3c1594a | 2014-05-28 21:52:12 +0000 | [diff] [blame] | 190 | |
commit-bot@chromium.org | 3c1594a | 2014-05-28 21:52:12 +0000 | [diff] [blame] | 191 | const int widths[] = {25, 5, 5, 100, 150, 25}; |
| 192 | const int heights[] = {100, 100, 5, 25, 150, 25}; |
| 193 | const SkBlurStyle styles[] = {kNormal_SkBlurStyle, kInner_SkBlurStyle, kOuter_SkBlurStyle}; |
| 194 | const float radii[] = {20, 5, 10}; |
| 195 | |
| 196 | canvas->translate(50,20); |
| 197 | |
| 198 | int cur_x = 0; |
| 199 | int cur_y = 0; |
| 200 | |
| 201 | int max_height = 0; |
| 202 | |
| 203 | for (size_t i = 0 ; i < SK_ARRAY_COUNT(widths) ; i++) { |
| 204 | int width = widths[i]; |
| 205 | int height = heights[i]; |
| 206 | SkRect r; |
| 207 | r.setWH(SkIntToScalar(width), SkIntToScalar(height)); |
| 208 | SkAutoCanvasRestore autoRestore(canvas, true); |
| 209 | |
| 210 | for (size_t j = 0 ; j < SK_ARRAY_COUNT(radii) ; j++) { |
| 211 | float radius = radii[j]; |
| 212 | for (size_t k = 0 ; k < SK_ARRAY_COUNT(styles) ; k++) { |
| 213 | SkBlurStyle style = styles[k]; |
| 214 | |
| 215 | SkMask mask; |
robertphillips | e80eb92 | 2015-12-17 11:33:12 -0800 | [diff] [blame] | 216 | if (!SkBlurMask::BlurRect(SkBlurMask::ConvertRadiusToSigma(radius), |
| 217 | &mask, r, style)) { |
| 218 | continue; |
| 219 | } |
commit-bot@chromium.org | 3c1594a | 2014-05-28 21:52:12 +0000 | [diff] [blame] | 220 | |
| 221 | SkAutoMaskFreeImage amfi(mask.fImage); |
| 222 | |
| 223 | SkBitmap bm; |
| 224 | bm.installMaskPixels(mask); |
| 225 | |
| 226 | if (cur_x + bm.width() >= fGMWidth - fMargin) { |
| 227 | cur_x = 0; |
| 228 | cur_y += max_height + fPadding; |
| 229 | max_height = 0; |
| 230 | } |
| 231 | |
| 232 | canvas->save(); |
commit-bot@chromium.org | 793ddd9 | 2014-05-28 22:42:31 +0000 | [diff] [blame] | 233 | canvas->translate((SkScalar)cur_x, (SkScalar)cur_y); |
commit-bot@chromium.org | 3c1594a | 2014-05-28 21:52:12 +0000 | [diff] [blame] | 234 | canvas->translate(-(bm.width() - r.width())/2, -(bm.height()-r.height())/2); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 235 | canvas->drawBitmap(bm, 0.f, 0.f, nullptr); |
commit-bot@chromium.org | 3c1594a | 2014-05-28 21:52:12 +0000 | [diff] [blame] | 236 | canvas->restore(); |
| 237 | |
| 238 | cur_x += bm.width() + fPadding; |
| 239 | if (bm.height() > max_height) |
| 240 | max_height = bm.height(); |
| 241 | } |
| 242 | } |
| 243 | } |
halcanary | 2a24338 | 2015-09-09 08:16:41 -0700 | [diff] [blame] | 244 | } |
humper@google.com | 7c7292c | 2013-01-04 20:29:03 +0000 | [diff] [blame] | 245 | |
reed@google.com | db87c96 | 2012-11-02 21:11:12 +0000 | [diff] [blame] | 246 | ////////////////////////////////////////////////////////////////////////////// |
| 247 | |
commit-bot@chromium.org | 7cced56 | 2014-01-10 23:10:13 +0000 | [diff] [blame] | 248 | DEF_GM(return new BlurRectGM("blurrects", 0xFF);) |