robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 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/SkBitmap.h" |
| 10 | #include "include/core/SkCanvas.h" |
| 11 | #include "include/core/SkColor.h" |
| 12 | #include "include/core/SkFilterQuality.h" |
| 13 | #include "include/core/SkImage.h" |
| 14 | #include "include/core/SkImageFilter.h" |
| 15 | #include "include/core/SkMatrix.h" |
| 16 | #include "include/core/SkPaint.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 17 | #include "include/core/SkPath.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 18 | #include "include/core/SkPicture.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 19 | #include "include/core/SkPictureRecorder.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 20 | #include "include/core/SkPoint.h" |
| 21 | #include "include/core/SkRRect.h" |
| 22 | #include "include/core/SkRect.h" |
| 23 | #include "include/core/SkRefCnt.h" |
| 24 | #include "include/core/SkScalar.h" |
| 25 | #include "include/core/SkSize.h" |
| 26 | #include "include/core/SkString.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 27 | #include "include/core/SkSurface.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 28 | #include "include/core/SkTypes.h" |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 29 | #include "include/effects/SkImageFilters.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 30 | #include "include/private/SkTArray.h" |
| 31 | |
| 32 | #include <utility> |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 33 | |
| 34 | namespace skiagm { |
| 35 | |
| 36 | // Each method of this type must draw its geometry inside 'r' using 'p' |
| 37 | typedef void(*drawMth)(SkCanvas* canvas, const SkRect& r, const SkPaint& p); |
| 38 | |
| 39 | static void draw_rect(SkCanvas* canvas, const SkRect& r, const SkPaint& p) { |
| 40 | canvas->drawRect(r, p); |
| 41 | } |
| 42 | |
| 43 | static void draw_oval(SkCanvas* canvas, const SkRect& r, const SkPaint& p) { |
| 44 | canvas->drawOval(r, p); |
| 45 | } |
| 46 | |
| 47 | static void draw_rrect(SkCanvas* canvas, const SkRect& r, const SkPaint& p) { |
| 48 | SkScalar xRad = r.width() / 4.0f; |
| 49 | SkScalar yRad = r.height() / 4.0f; |
| 50 | |
| 51 | SkRRect rr; |
| 52 | rr.setRectXY(r, xRad, yRad); |
| 53 | canvas->drawRRect(rr, p); |
| 54 | } |
| 55 | |
| 56 | static void draw_drrect(SkCanvas* canvas, const SkRect& r, const SkPaint& p) { |
| 57 | SkScalar xRad = r.width() / 4.0f; |
| 58 | SkScalar yRad = r.height() / 4.0f; |
| 59 | |
| 60 | SkRRect outer; |
| 61 | outer.setRectXY(r, xRad, yRad); |
| 62 | SkRRect inner = outer; |
| 63 | inner.inset(xRad, yRad); |
| 64 | canvas->drawDRRect(outer, inner, p); |
| 65 | } |
| 66 | |
| 67 | static void draw_path(SkCanvas* canvas, const SkRect& r, const SkPaint& p) { |
| 68 | SkPath path; |
| 69 | |
| 70 | path.moveTo(r.fLeft, r.fTop); |
| 71 | path.lineTo(r.fLeft, r.fBottom); |
| 72 | path.lineTo(r.fRight, r.fBottom); |
| 73 | path.close(); |
| 74 | |
| 75 | canvas->drawPath(path, p); |
| 76 | } |
| 77 | |
| 78 | static void draw_points(SkCanvas* canvas, const SkRect& r, const SkPaint& p) { |
| 79 | SkPoint pts0[2] = { { r.fLeft, r.fTop }, { r.fRight, r.fBottom } }; |
| 80 | SkPoint pts1[2] = { { r.fLeft, r.fBottom }, { r.fRight, r.fTop } }; |
| 81 | |
| 82 | canvas->drawPoints(SkCanvas::kLines_PointMode, 2, pts0, p); |
| 83 | canvas->drawPoints(SkCanvas::kLines_PointMode, 2, pts1, p); |
| 84 | } |
| 85 | |
| 86 | static void draw_bitmap(SkCanvas* canvas, const SkRect& r, const SkPaint& p) { |
| 87 | SkBitmap bm; |
| 88 | |
| 89 | bm.allocN32Pixels(64, 64); |
| 90 | SkCanvas temp(bm); |
| 91 | temp.clear(SK_ColorMAGENTA); |
| 92 | |
| 93 | canvas->drawBitmapRect(bm, r, &p); |
| 94 | } |
| 95 | |
mtklein | dbfd7ab | 2016-09-01 11:24:54 -0700 | [diff] [blame] | 96 | constexpr drawMth gDrawMthds[] = { |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 97 | draw_rect, draw_oval, draw_rrect, draw_drrect, draw_path, draw_points, draw_bitmap |
| 98 | }; |
| 99 | |
robertphillips | 6e7025a | 2016-04-04 04:31:25 -0700 | [diff] [blame] | 100 | static void add_paint(SkTArray<SkPaint>* paints, sk_sp<SkImageFilter> filter) { |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 101 | SkPaint& p = paints->push_back(); |
robertphillips | 6e7025a | 2016-04-04 04:31:25 -0700 | [diff] [blame] | 102 | p.setImageFilter(std::move(filter)); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 103 | SkASSERT(p.canComputeFastBounds()); |
| 104 | } |
| 105 | |
| 106 | // Create a selection of imagefilter-based paints to test |
robertphillips | 6e7025a | 2016-04-04 04:31:25 -0700 | [diff] [blame] | 107 | static void create_paints(SkTArray<SkPaint>* paints, sk_sp<SkImageFilter> source) { |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 108 | { |
| 109 | SkMatrix scale; |
| 110 | scale.setScale(2.0f, 2.0f); |
| 111 | |
robertphillips | 6e7025a | 2016-04-04 04:31:25 -0700 | [diff] [blame] | 112 | sk_sp<SkImageFilter> scaleMIF( |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 113 | SkImageFilters::MatrixTransform(scale, kLow_SkFilterQuality, source)); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 114 | |
robertphillips | 6e7025a | 2016-04-04 04:31:25 -0700 | [diff] [blame] | 115 | add_paint(paints, std::move(scaleMIF)); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 116 | } |
| 117 | |
| 118 | { |
| 119 | SkMatrix rot; |
| 120 | rot.setRotate(-33.3f); |
| 121 | |
robertphillips | 6e7025a | 2016-04-04 04:31:25 -0700 | [diff] [blame] | 122 | sk_sp<SkImageFilter> rotMIF( |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 123 | SkImageFilters::MatrixTransform(rot, kLow_SkFilterQuality, source)); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 124 | |
robertphillips | 6e7025a | 2016-04-04 04:31:25 -0700 | [diff] [blame] | 125 | add_paint(paints, std::move(rotMIF)); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 126 | } |
| 127 | |
| 128 | { |
senorblanco | d18b1b5 | 2015-12-07 10:36:30 -0800 | [diff] [blame] | 129 | SkRect src = SkRect::MakeXYWH(20, 20, 10, 10); |
| 130 | SkRect dst = SkRect::MakeXYWH(30, 30, 30, 30); |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 131 | sk_sp<SkImageFilter> tileIF(SkImageFilters::Tile(src, dst, nullptr)); |
senorblanco | d18b1b5 | 2015-12-07 10:36:30 -0800 | [diff] [blame] | 132 | |
robertphillips | 6e7025a | 2016-04-04 04:31:25 -0700 | [diff] [blame] | 133 | add_paint(paints, std::move(tileIF)); |
senorblanco | d18b1b5 | 2015-12-07 10:36:30 -0800 | [diff] [blame] | 134 | } |
| 135 | |
| 136 | { |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 137 | sk_sp<SkImageFilter> dsif = |
| 138 | SkImageFilters::DropShadow(10.0f, 10.0f, 3.0f, 3.0f, SK_ColorRED, source); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 139 | |
robertphillips | 6e7025a | 2016-04-04 04:31:25 -0700 | [diff] [blame] | 140 | add_paint(paints, std::move(dsif)); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 141 | } |
| 142 | |
| 143 | { |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 144 | sk_sp<SkImageFilter> dsif = |
| 145 | SkImageFilters::DropShadowOnly(27.0f, 27.0f, 3.0f, 3.0f, SK_ColorRED, source); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 146 | |
robertphillips | 6e7025a | 2016-04-04 04:31:25 -0700 | [diff] [blame] | 147 | add_paint(paints, std::move(dsif)); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 148 | } |
| 149 | |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 150 | add_paint(paints, SkImageFilters::Blur(3, 3, source)); |
| 151 | add_paint(paints, SkImageFilters::Offset(15, 15, source)); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 152 | } |
| 153 | |
| 154 | // This GM visualizes the fast bounds for various combinations of geometry |
| 155 | // and image filter |
| 156 | class ImageFilterFastBoundGM : public GM { |
| 157 | public: |
| 158 | ImageFilterFastBoundGM() { |
Mike Klein | d46dce3 | 2018-08-16 10:17:03 -0400 | [diff] [blame] | 159 | this->setBGColor(0xFFCCCCCC); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 160 | } |
| 161 | |
| 162 | protected: |
mtklein | dbfd7ab | 2016-09-01 11:24:54 -0700 | [diff] [blame] | 163 | static constexpr int kTileWidth = 100; |
| 164 | static constexpr int kTileHeight = 100; |
| 165 | static constexpr int kNumVertTiles = 7; |
| 166 | static constexpr int kNumXtraCols = 2; |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 167 | |
Hal Canary | fa3305a | 2019-07-18 12:36:54 -0400 | [diff] [blame] | 168 | SkString onShortName() override { return SkString("filterfastbounds"); } |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 169 | |
Hal Canary | fa3305a | 2019-07-18 12:36:54 -0400 | [diff] [blame] | 170 | SkISize onISize() override { |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 171 | return SkISize::Make((SK_ARRAY_COUNT(gDrawMthds) + kNumXtraCols) * kTileWidth, |
| 172 | kNumVertTiles * kTileHeight); |
| 173 | } |
| 174 | |
| 175 | static void draw_geom_with_paint(drawMth draw, const SkIPoint& off, |
| 176 | SkCanvas* canvas, const SkPaint& p) { |
| 177 | SkPaint redStroked; |
| 178 | redStroked.setColor(SK_ColorRED); |
| 179 | redStroked.setStyle(SkPaint::kStroke_Style); |
| 180 | |
| 181 | SkPaint blueStroked; |
| 182 | blueStroked.setColor(SK_ColorBLUE); |
| 183 | blueStroked.setStyle(SkPaint::kStroke_Style); |
| 184 | |
| 185 | const SkRect r = SkRect::MakeLTRB(20, 20, 30, 30); |
| 186 | SkRect storage; |
| 187 | |
| 188 | canvas->save(); |
| 189 | canvas->translate(SkIntToScalar(off.fX), SkIntToScalar(off.fY)); |
| 190 | canvas->scale(1.5f, 1.5f); |
| 191 | |
| 192 | const SkRect& fastBound = p.computeFastBounds(r, &storage); |
| 193 | |
| 194 | canvas->save(); |
| 195 | canvas->clipRect(fastBound); |
| 196 | (*draw)(canvas, r, p); |
| 197 | canvas->restore(); |
| 198 | |
| 199 | canvas->drawRect(r, redStroked); |
| 200 | canvas->drawRect(fastBound, blueStroked); |
| 201 | canvas->restore(); |
| 202 | } |
| 203 | |
| 204 | static void draw_savelayer_with_paint(const SkIPoint& off, |
| 205 | SkCanvas* canvas, |
| 206 | const SkPaint& p) { |
| 207 | SkPaint redStroked; |
| 208 | redStroked.setColor(SK_ColorRED); |
| 209 | redStroked.setStyle(SkPaint::kStroke_Style); |
| 210 | |
| 211 | SkPaint blueStroked; |
| 212 | blueStroked.setColor(SK_ColorBLUE); |
| 213 | blueStroked.setStyle(SkPaint::kStroke_Style); |
| 214 | |
| 215 | const SkRect bounds = SkRect::MakeWH(10, 10); |
| 216 | SkRect storage; |
| 217 | |
| 218 | canvas->save(); |
| 219 | canvas->translate(30, 30); |
| 220 | canvas->translate(SkIntToScalar(off.fX), SkIntToScalar(off.fY)); |
| 221 | canvas->scale(1.5f, 1.5f); |
| 222 | |
| 223 | const SkRect& fastBound = p.computeFastBounds(bounds, &storage); |
| 224 | |
| 225 | canvas->saveLayer(&fastBound, &p); |
| 226 | canvas->restore(); |
| 227 | |
| 228 | canvas->drawRect(bounds, redStroked); |
| 229 | canvas->drawRect(fastBound, blueStroked); |
| 230 | canvas->restore(); |
| 231 | } |
| 232 | |
Hal Canary | fa3305a | 2019-07-18 12:36:54 -0400 | [diff] [blame] | 233 | void onDraw(SkCanvas* canvas) override { |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 234 | |
| 235 | SkPaint blackFill; |
| 236 | |
| 237 | //----------- |
| 238 | // Normal paints (no source) |
| 239 | SkTArray<SkPaint> paints; |
robertphillips | 6e7025a | 2016-04-04 04:31:25 -0700 | [diff] [blame] | 240 | create_paints(&paints, nullptr); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 241 | |
| 242 | //----------- |
| 243 | // Paints with a PictureImageFilter as a source |
reed | ca2622b | 2016-03-18 07:25:55 -0700 | [diff] [blame] | 244 | sk_sp<SkPicture> pic; |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 245 | |
| 246 | { |
| 247 | SkPictureRecorder rec; |
| 248 | |
| 249 | SkCanvas* c = rec.beginRecording(10, 10); |
| 250 | c->drawRect(SkRect::MakeWH(10, 10), blackFill); |
reed | ca2622b | 2016-03-18 07:25:55 -0700 | [diff] [blame] | 251 | pic = rec.finishRecordingAsPicture(); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 252 | } |
| 253 | |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 254 | SkTArray<SkPaint> pifPaints; |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 255 | create_paints(&pifPaints, SkImageFilters::Picture(pic)); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 256 | |
| 257 | //----------- |
fmalita | 2f5891e | 2015-09-25 09:15:55 -0700 | [diff] [blame] | 258 | // Paints with a SkImageSource as a source |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 259 | |
reed | e8f3062 | 2016-03-23 18:59:25 -0700 | [diff] [blame] | 260 | auto surface(SkSurface::MakeRasterN32Premul(10, 10)); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 261 | { |
| 262 | SkPaint p; |
fmalita | 2f5891e | 2015-09-25 09:15:55 -0700 | [diff] [blame] | 263 | SkCanvas* temp = surface->getCanvas(); |
| 264 | temp->clear(SK_ColorYELLOW); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 265 | p.setColor(SK_ColorBLUE); |
fmalita | 2f5891e | 2015-09-25 09:15:55 -0700 | [diff] [blame] | 266 | temp->drawRect(SkRect::MakeLTRB(5, 5, 10, 10), p); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 267 | p.setColor(SK_ColorGREEN); |
fmalita | 2f5891e | 2015-09-25 09:15:55 -0700 | [diff] [blame] | 268 | temp->drawRect(SkRect::MakeLTRB(5, 0, 10, 5), p); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 269 | } |
| 270 | |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 271 | sk_sp<SkImage> image(surface->makeImageSnapshot()); |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 272 | sk_sp<SkImageFilter> imageSource(SkImageFilters::Image(std::move(image))); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 273 | SkTArray<SkPaint> bmsPaints; |
robertphillips | 6e7025a | 2016-04-04 04:31:25 -0700 | [diff] [blame] | 274 | create_paints(&bmsPaints, std::move(imageSource)); |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 275 | |
| 276 | //----------- |
| 277 | SkASSERT(paints.count() == kNumVertTiles); |
| 278 | SkASSERT(paints.count() == pifPaints.count()); |
| 279 | SkASSERT(paints.count() == bmsPaints.count()); |
| 280 | |
| 281 | // horizontal separators |
| 282 | for (int i = 1; i < paints.count(); ++i) { |
| 283 | canvas->drawLine(0, |
| 284 | i*SkIntToScalar(kTileHeight), |
| 285 | SkIntToScalar((SK_ARRAY_COUNT(gDrawMthds) + kNumXtraCols)*kTileWidth), |
| 286 | i*SkIntToScalar(kTileHeight), |
| 287 | blackFill); |
| 288 | } |
| 289 | // vertical separators |
| 290 | for (int i = 0; i < (int)SK_ARRAY_COUNT(gDrawMthds) + kNumXtraCols; ++i) { |
| 291 | canvas->drawLine(SkIntToScalar(i * kTileWidth), |
| 292 | 0, |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 293 | SkIntToScalar(i * kTileWidth), |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 294 | SkIntToScalar(paints.count() * kTileWidth), |
| 295 | blackFill); |
| 296 | } |
| 297 | |
| 298 | // A column of saveLayers with PictureImageFilters |
| 299 | for (int i = 0; i < pifPaints.count(); ++i) { |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 300 | draw_savelayer_with_paint(SkIPoint::Make(0, i*kTileHeight), |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 301 | canvas, pifPaints[i]); |
| 302 | } |
| 303 | |
| 304 | // A column of saveLayers with BitmapSources |
| 305 | for (int i = 0; i < pifPaints.count(); ++i) { |
| 306 | draw_savelayer_with_paint(SkIPoint::Make(kTileWidth, i*kTileHeight), |
| 307 | canvas, bmsPaints[i]); |
| 308 | } |
| 309 | |
| 310 | // Multiple columns with different geometry |
| 311 | for (int i = 0; i < (int)SK_ARRAY_COUNT(gDrawMthds); ++i) { |
| 312 | for (int j = 0; j < paints.count(); ++j) { |
| 313 | draw_geom_with_paint(*gDrawMthds[i], |
| 314 | SkIPoint::Make((i+kNumXtraCols) * kTileWidth, j*kTileHeight), |
| 315 | canvas, paints[j]); |
| 316 | } |
| 317 | } |
| 318 | |
| 319 | } |
| 320 | |
| 321 | private: |
| 322 | typedef GM INHERITED; |
| 323 | }; |
| 324 | |
| 325 | ////////////////////////////////////////////////////////////////////////////// |
| 326 | |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 327 | DEF_GM(return new ImageFilterFastBoundGM;) |
robertphillips | 9a26410 | 2014-12-08 09:18:58 -0800 | [diff] [blame] | 328 | } |