Mike Reed | 113fd34 | 2017-01-14 13:45:02 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017 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 | |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 8 | #include "gm/gm.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 9 | #include "include/core/SkBlendMode.h" |
| 10 | #include "include/core/SkCanvas.h" |
| 11 | #include "include/core/SkColor.h" |
| 12 | #include "include/core/SkColorSpace.h" |
| 13 | #include "include/core/SkFont.h" |
| 14 | #include "include/core/SkImage.h" |
| 15 | #include "include/core/SkImageFilter.h" |
| 16 | #include "include/core/SkImageInfo.h" |
| 17 | #include "include/core/SkMaskFilter.h" |
| 18 | #include "include/core/SkMatrix.h" |
| 19 | #include "include/core/SkPaint.h" |
| 20 | #include "include/core/SkPicture.h" |
| 21 | #include "include/core/SkPictureRecorder.h" |
| 22 | #include "include/core/SkPoint.h" |
| 23 | #include "include/core/SkRect.h" |
| 24 | #include "include/core/SkRefCnt.h" |
| 25 | #include "include/core/SkScalar.h" |
| 26 | #include "include/core/SkShader.h" |
| 27 | #include "include/core/SkSize.h" |
| 28 | #include "include/core/SkString.h" |
| 29 | #include "include/core/SkSurface.h" |
| 30 | #include "include/core/SkTextBlob.h" |
| 31 | #include "include/core/SkTileMode.h" |
| 32 | #include "include/core/SkTypeface.h" |
| 33 | #include "include/core/SkTypes.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 34 | #include "include/effects/SkGradientShader.h" |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 35 | #include "include/effects/SkImageFilters.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 36 | #include "include/effects/SkShaderMaskFilter.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 37 | #include "include/utils/SkRandom.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 38 | #include "src/core/SkCanvasPriv.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 39 | #include "tools/Resources.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 40 | #include "tools/ToolUtils.h" |
Yuqian Li | d196cbe | 2017-02-23 10:28:33 -0500 | [diff] [blame] | 41 | |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 42 | #include <string.h> |
| 43 | #include <initializer_list> |
| 44 | |
Robert Phillips | 42f3094 | 2017-01-17 10:48:52 -0500 | [diff] [blame] | 45 | // This GM tests out the deprecated Android-specific unclipped saveLayer "feature". |
| 46 | // In particular, it attempts to compare the performance of unclipped saveLayers with alternatives. |
| 47 | |
| 48 | static void save_layer_unclipped(SkCanvas* canvas, |
| 49 | SkScalar l, SkScalar t, SkScalar r, SkScalar b) { |
Mike Reed | 18a8df6 | 2019-09-03 15:44:47 -0400 | [diff] [blame] | 50 | SkPaint paint; |
| 51 | paint.setAlphaf(0.25f); |
Mike Reed | 113fd34 | 2017-01-14 13:45:02 -0500 | [diff] [blame] | 52 | SkRect rect = SkRect::MakeLTRB(l, t, r, b); |
Mike Reed | b42a327 | 2020-05-30 16:02:14 -0400 | [diff] [blame] | 53 | canvas->saveLayer({ &rect, &paint, nullptr, |
Cary Clark | 7eddfb8 | 2018-03-13 14:41:10 -0400 | [diff] [blame] | 54 | (SkCanvas::SaveLayerFlags) SkCanvasPriv::kDontClipToLayer_SaveLayerFlag }); |
Mike Reed | 113fd34 | 2017-01-14 13:45:02 -0500 | [diff] [blame] | 55 | } |
| 56 | |
| 57 | static void do_draw(SkCanvas* canvas) { |
| 58 | SkPaint paint; |
Mike Reed | 18a8df6 | 2019-09-03 15:44:47 -0400 | [diff] [blame] | 59 | paint.setColor(0xFFFF0000); |
Mike Reed | 113fd34 | 2017-01-14 13:45:02 -0500 | [diff] [blame] | 60 | |
Mike Reed | 113fd34 | 2017-01-14 13:45:02 -0500 | [diff] [blame] | 61 | for (int i = 0; i < 20; ++i) { |
Mike Reed | 113fd34 | 2017-01-14 13:45:02 -0500 | [diff] [blame] | 62 | canvas->drawRect({ 15, 15, 290, 40 }, paint); |
| 63 | canvas->translate(0, 30); |
| 64 | } |
| 65 | } |
| 66 | |
Robert Phillips | 42f3094 | 2017-01-17 10:48:52 -0500 | [diff] [blame] | 67 | class UnclippedSaveLayerGM : public skiagm::GM { |
| 68 | public: |
Mike Reed | 18a8df6 | 2019-09-03 15:44:47 -0400 | [diff] [blame] | 69 | UnclippedSaveLayerGM() { this->setBGColor(SK_ColorWHITE); } |
Mike Reed | 113fd34 | 2017-01-14 13:45:02 -0500 | [diff] [blame] | 70 | |
Robert Phillips | 42f3094 | 2017-01-17 10:48:52 -0500 | [diff] [blame] | 71 | protected: |
| 72 | bool runAsBench() const override { return true; } |
| 73 | |
| 74 | SkString onShortName() override { |
Mike Reed | 18a8df6 | 2019-09-03 15:44:47 -0400 | [diff] [blame] | 75 | return SkString("savelayer_unclipped"); |
Mike Reed | 113fd34 | 2017-01-14 13:45:02 -0500 | [diff] [blame] | 76 | } |
Robert Phillips | 42f3094 | 2017-01-17 10:48:52 -0500 | [diff] [blame] | 77 | |
| 78 | SkISize onISize() override { return SkISize::Make(320, 640); } |
| 79 | |
| 80 | void onDraw(SkCanvas* canvas) override { |
| 81 | const SkScalar L = 10; |
| 82 | const SkScalar T = 10; |
| 83 | const SkScalar R = 310; |
| 84 | const SkScalar B = 630; |
| 85 | |
| 86 | canvas->clipRect({ L, T, R, B }); |
| 87 | |
Mike Reed | 18a8df6 | 2019-09-03 15:44:47 -0400 | [diff] [blame] | 88 | SkAutoCanvasRestore acr(canvas, true); |
| 89 | save_layer_unclipped(canvas, L, T, R, T + 100); |
| 90 | save_layer_unclipped(canvas, L, B - 100, R, B); |
Robert Phillips | 42f3094 | 2017-01-17 10:48:52 -0500 | [diff] [blame] | 91 | |
Mike Reed | 18a8df6 | 2019-09-03 15:44:47 -0400 | [diff] [blame] | 92 | do_draw(canvas); |
Robert Phillips | 42f3094 | 2017-01-17 10:48:52 -0500 | [diff] [blame] | 93 | } |
| 94 | |
| 95 | private: |
Robert Phillips | 42f3094 | 2017-01-17 10:48:52 -0500 | [diff] [blame] | 96 | typedef skiagm::GM INHERITED; |
| 97 | }; |
Mike Reed | 18a8df6 | 2019-09-03 15:44:47 -0400 | [diff] [blame] | 98 | DEF_GM(return new UnclippedSaveLayerGM;) |
Robert Phillips | 42f3094 | 2017-01-17 10:48:52 -0500 | [diff] [blame] | 99 | |
Yuqian Li | d196cbe | 2017-02-23 10:28:33 -0500 | [diff] [blame] | 100 | DEF_SIMPLE_GM(picture_savelayer, canvas, 320, 640) { |
| 101 | SkPaint paint1, paint2, paint3; |
Mike Reed | 9407e24 | 2019-02-15 16:13:57 -0500 | [diff] [blame] | 102 | paint1.setAlphaf(0.5f); |
| 103 | paint2.setAlphaf(0.25f); |
Yuqian Li | d196cbe | 2017-02-23 10:28:33 -0500 | [diff] [blame] | 104 | paint3.setColor(0xFFFF0000); |
| 105 | SkRect rect1{40, 5, 80, 70}, rect2{5, 40, 70, 80}, rect3{10, 10, 70, 70}; |
| 106 | // In the future, we might also test the clipped case by allowing i = 0 |
| 107 | for(int i = 1; i < 2; ++i) { |
| 108 | canvas->translate(100 * i, 0); |
Cary Clark | 7eddfb8 | 2018-03-13 14:41:10 -0400 | [diff] [blame] | 109 | auto flag = i ? |
| 110 | (SkCanvas::SaveLayerFlags) SkCanvasPriv::kDontClipToLayer_SaveLayerFlag : 0; |
Mike Reed | b42a327 | 2020-05-30 16:02:14 -0400 | [diff] [blame] | 111 | canvas->saveLayer(SkCanvas::SaveLayerRec(&rect1, &paint1, nullptr, flag)); |
| 112 | canvas->saveLayer(SkCanvas::SaveLayerRec(&rect2, &paint2, nullptr, flag)); |
Yuqian Li | d196cbe | 2017-02-23 10:28:33 -0500 | [diff] [blame] | 113 | canvas->drawRect(rect3, paint3); |
| 114 | canvas->restore(); |
| 115 | canvas->restore(); |
| 116 | } |
| 117 | }; |
| 118 | |
Mike Reed | c61abee | 2017-02-28 17:45:27 -0500 | [diff] [blame] | 119 | // Test kInitWithPrevious_SaveLayerFlag by drawing an image, save a layer with the flag, which |
| 120 | // should seed the layer with the image (from below). Then we punch a hole in the layer and |
| 121 | // restore with kPlus mode, which should show the mandrill super-bright on the outside, but |
| 122 | // normal where we punched the hole. |
| 123 | DEF_SIMPLE_GM(savelayer_initfromprev, canvas, 256, 256) { |
Hal Canary | c465d13 | 2017-12-08 10:21:31 -0500 | [diff] [blame] | 124 | canvas->drawImage(GetResourceAsImage("images/mandrill_256.png"), 0, 0, nullptr); |
Mike Reed | c61abee | 2017-02-28 17:45:27 -0500 | [diff] [blame] | 125 | |
| 126 | SkCanvas::SaveLayerRec rec; |
| 127 | SkPaint paint; |
| 128 | paint.setBlendMode(SkBlendMode::kPlus); |
| 129 | rec.fSaveLayerFlags = SkCanvas::kInitWithPrevious_SaveLayerFlag; |
| 130 | rec.fPaint = &paint; |
| 131 | canvas->saveLayer(rec); |
| 132 | paint.setBlendMode(SkBlendMode::kClear); |
| 133 | canvas->drawCircle(128, 128, 96, paint); |
| 134 | canvas->restore(); |
| 135 | }; |
Robert Phillips | 42f3094 | 2017-01-17 10:48:52 -0500 | [diff] [blame] | 136 | |
Mike Reed | 910ca0f | 2018-04-25 13:04:05 -0400 | [diff] [blame] | 137 | DEF_SIMPLE_GM(savelayer_coverage, canvas, 500, 500) { |
| 138 | canvas->saveLayer(nullptr, nullptr); |
| 139 | |
| 140 | SkRect r = { 0, 0, 200, 200 }; |
| 141 | SkPaint layerPaint; |
| 142 | layerPaint.setBlendMode(SkBlendMode::kModulate); |
| 143 | |
| 144 | auto image = GetResourceAsImage("images/mandrill_128.png"); |
| 145 | |
| 146 | auto proc = [layerPaint](SkCanvas* canvas, SkCanvas::SaveLayerRec& rec) { |
| 147 | SkPaint paint; |
| 148 | paint.setColor(SK_ColorRED); |
| 149 | |
| 150 | canvas->saveLayer(rec); |
| 151 | canvas->drawCircle(100, 100, 50, paint); |
| 152 | paint.setColor(0x8800FF00); |
| 153 | canvas->drawRect({10, 90, 190, 110}, paint); |
| 154 | canvas->restore(); |
| 155 | }; |
| 156 | |
| 157 | const int yflags[] = { 0, SkCanvas::kInitWithPrevious_SaveLayerFlag }; |
| 158 | for (int y = 0; y <= 1; ++y) { |
| 159 | const int xflags[] = { 0, SkCanvas::kMaskAgainstCoverage_EXPERIMENTAL_DONT_USE_SaveLayerFlag }; |
| 160 | for (int x = 0; x <= 1; ++x) { |
| 161 | canvas->save(); |
| 162 | canvas->translate(x * 200.f, y * 200.f); |
| 163 | |
| 164 | SkCanvas::SaveLayerRec rec(&r, &layerPaint, yflags[y] | xflags[x]); |
| 165 | canvas->drawImageRect(image, r, nullptr); |
| 166 | proc(canvas, rec); |
| 167 | |
| 168 | canvas->restore(); |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | canvas->restore(); |
| 173 | } |
| 174 | |
Mike Reed | d567408 | 2019-04-19 15:00:47 -0400 | [diff] [blame] | 175 | static void draw_cell(SkCanvas* canvas, sk_sp<SkTextBlob> blob, SkColor c, SkScalar w, SkScalar h, |
| 176 | bool useDrawBehind) { |
Mike Reed | 148b7fd | 2018-12-18 17:38:18 -0500 | [diff] [blame] | 177 | SkRect r = SkRect::MakeWH(w, h); |
| 178 | SkPaint p; |
| 179 | p.setColor(c); |
| 180 | p.setBlendMode(SkBlendMode::kSrc); |
| 181 | canvas->drawRect(r, p); |
| 182 | p.setBlendMode(SkBlendMode::kSrcOver); |
| 183 | |
| 184 | const SkScalar margin = 80; |
| 185 | r.fLeft = w - margin; |
| 186 | |
| 187 | // save the behind image |
| 188 | SkDEBUGCODE(int sc0 =) canvas->getSaveCount(); |
| 189 | SkDEBUGCODE(int sc1 =) SkCanvasPriv::SaveBehind(canvas, &r); |
| 190 | SkDEBUGCODE(int sc2 =) canvas->getSaveCount(); |
| 191 | SkASSERT(sc0 == sc1); |
| 192 | SkASSERT(sc0 + 1 == sc2); |
| 193 | |
| 194 | // draw the foreground (including over the 'behind' section) |
| 195 | p.setColor(SK_ColorBLACK); |
| 196 | canvas->drawTextBlob(blob, 10, 30, p); |
| 197 | |
| 198 | // draw the treatment |
| 199 | const SkPoint pts[] = { {r.fLeft,0}, {r.fRight, 0} }; |
| 200 | const SkColor colors[] = { 0x88000000, 0x0 }; |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 201 | auto sh = SkGradientShader::MakeLinear(pts, colors, nullptr, 2, SkTileMode::kClamp); |
Mike Reed | 148b7fd | 2018-12-18 17:38:18 -0500 | [diff] [blame] | 202 | p.setShader(sh); |
| 203 | p.setBlendMode(SkBlendMode::kDstIn); |
Mike Reed | d567408 | 2019-04-19 15:00:47 -0400 | [diff] [blame] | 204 | |
| 205 | if (useDrawBehind) { |
| 206 | SkCanvasPriv::DrawBehind(canvas, p); |
| 207 | } else { |
| 208 | canvas->drawRect(r, p); |
| 209 | } |
Mike Reed | 148b7fd | 2018-12-18 17:38:18 -0500 | [diff] [blame] | 210 | |
| 211 | // this should restore the behind image |
| 212 | canvas->restore(); |
| 213 | SkDEBUGCODE(int sc3 =) canvas->getSaveCount(); |
| 214 | SkASSERT(sc3 == sc0); |
| 215 | |
| 216 | // just outline where we expect the treatment to appear |
| 217 | p.reset(); |
| 218 | p.setStyle(SkPaint::kStroke_Style); |
Mike Reed | 9407e24 | 2019-02-15 16:13:57 -0500 | [diff] [blame] | 219 | p.setAlphaf(0.25f); |
Mike Reed | 148b7fd | 2018-12-18 17:38:18 -0500 | [diff] [blame] | 220 | } |
| 221 | |
Mike Reed | d567408 | 2019-04-19 15:00:47 -0400 | [diff] [blame] | 222 | static void draw_list(SkCanvas* canvas, sk_sp<SkTextBlob> blob, bool useDrawBehind) { |
Mike Reed | 148b7fd | 2018-12-18 17:38:18 -0500 | [diff] [blame] | 223 | SkAutoCanvasRestore acr(canvas, true); |
| 224 | |
| 225 | SkRandom rand; |
| 226 | SkScalar w = 400; |
| 227 | SkScalar h = 40; |
| 228 | for (int i = 0; i < 8; ++i) { |
| 229 | SkColor c = rand.nextU(); // ensure we're opaque |
| 230 | c = (c & 0xFFFFFF) | 0x80000000; |
Mike Reed | d567408 | 2019-04-19 15:00:47 -0400 | [diff] [blame] | 231 | draw_cell(canvas, blob, c, w, h, useDrawBehind); |
Mike Reed | 148b7fd | 2018-12-18 17:38:18 -0500 | [diff] [blame] | 232 | canvas->translate(0, h); |
| 233 | } |
| 234 | } |
| 235 | |
Mike Reed | d567408 | 2019-04-19 15:00:47 -0400 | [diff] [blame] | 236 | DEF_SIMPLE_GM(save_behind, canvas, 830, 670) { |
Mike Reed | 148b7fd | 2018-12-18 17:38:18 -0500 | [diff] [blame] | 237 | SkFont font; |
Mike Reed | 2ce3640 | 2019-04-21 18:15:23 -0400 | [diff] [blame] | 238 | font.setTypeface(ToolUtils::create_portable_typeface()); |
Mike Reed | 148b7fd | 2018-12-18 17:38:18 -0500 | [diff] [blame] | 239 | font.setSize(30); |
Mike Reed | 2ce3640 | 2019-04-21 18:15:23 -0400 | [diff] [blame] | 240 | |
Mike Reed | 148b7fd | 2018-12-18 17:38:18 -0500 | [diff] [blame] | 241 | const char text[] = "This is a very long line of text"; |
| 242 | auto blob = SkTextBlob::MakeFromText(text, strlen(text), font); |
| 243 | |
Mike Reed | d567408 | 2019-04-19 15:00:47 -0400 | [diff] [blame] | 244 | for (bool useDrawBehind : {false, true}) { |
| 245 | canvas->save(); |
| 246 | |
| 247 | draw_list(canvas, blob, useDrawBehind); |
| 248 | canvas->translate(0, 350); |
| 249 | canvas->saveLayer({0, 0, 400, 320}, nullptr); |
| 250 | draw_list(canvas, blob, useDrawBehind); |
| 251 | canvas->restore(); |
| 252 | |
| 253 | canvas->restore(); |
| 254 | canvas->translate(430, 0); |
| 255 | } |
Mike Reed | 148b7fd | 2018-12-18 17:38:18 -0500 | [diff] [blame] | 256 | } |
Mike Reed | 1f3548c | 2019-07-12 12:53:11 -0400 | [diff] [blame] | 257 | |
| 258 | #include "include/effects/SkGradientShader.h" |
| 259 | |
| 260 | DEF_SIMPLE_GM(savelayer_f16, canvas, 900, 300) { |
| 261 | int n = 15; |
| 262 | SkRect r{0, 0, 300, 300}; |
| 263 | SkPaint paint; |
| 264 | |
| 265 | const SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorRED }; |
| 266 | paint.setShader(SkGradientShader::MakeSweep(r.centerX(), r.centerY(), |
| 267 | colors, nullptr, SK_ARRAY_COUNT(colors))); |
| 268 | |
| 269 | canvas->drawOval(r, paint); |
| 270 | |
| 271 | paint.setAlphaf(1.0f/n); |
| 272 | paint.setBlendMode(SkBlendMode::kPlus); |
| 273 | |
| 274 | for (auto flags : {0, (int)SkCanvas::kF16ColorType}) { |
| 275 | canvas->translate(r.width(), 0); |
| 276 | |
| 277 | SkCanvas::SaveLayerRec rec; |
| 278 | rec.fSaveLayerFlags = flags; |
| 279 | canvas->saveLayer(rec); |
| 280 | for (int i = 0; i < n; ++i) { |
| 281 | canvas->drawOval(r, paint); |
| 282 | } |
| 283 | canvas->restore(); |
| 284 | } |
| 285 | } |