senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2013 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/SkCanvas.h" |
| 10 | #include "include/core/SkColor.h" |
| 11 | #include "include/core/SkColorSpace.h" |
| 12 | #include "include/core/SkFilterQuality.h" |
| 13 | #include "include/core/SkFont.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 14 | #include "include/core/SkImage.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 15 | #include "include/core/SkImageFilter.h" |
| 16 | #include "include/core/SkPaint.h" |
| 17 | #include "include/core/SkPicture.h" |
| 18 | #include "include/core/SkPictureRecorder.h" |
| 19 | #include "include/core/SkRect.h" |
| 20 | #include "include/core/SkRefCnt.h" |
| 21 | #include "include/core/SkScalar.h" |
| 22 | #include "include/core/SkSize.h" |
| 23 | #include "include/core/SkString.h" |
| 24 | #include "include/core/SkTypeface.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 25 | #include "include/effects/SkImageSource.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 26 | #include "include/effects/SkPictureImageFilter.h" |
| 27 | #include "tools/ToolUtils.h" |
Mike Reed | 77e487d | 2017-11-09 21:50:20 +0000 | [diff] [blame] | 28 | |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 29 | // This GM exercises the SkPictureImageFilter ImageFilter class. |
| 30 | |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 31 | static void fill_rect_filtered(SkCanvas* canvas, |
| 32 | const SkRect& clipRect, |
| 33 | sk_sp<SkImageFilter> filter) { |
| 34 | SkPaint paint; |
| 35 | paint.setImageFilter(filter); |
| 36 | canvas->save(); |
| 37 | canvas->clipRect(clipRect); |
| 38 | canvas->drawPaint(paint); |
| 39 | canvas->restore(); |
| 40 | } |
| 41 | |
| 42 | static sk_sp<SkPicture> make_picture() { |
| 43 | SkPictureRecorder recorder; |
| 44 | SkCanvas* canvas = recorder.beginRecording(100, 100, nullptr, 0); |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 45 | SkPaint paint; |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 46 | paint.setColor(0xFFFFFFFF); |
Mike Klein | ea3f014 | 2019-03-20 11:12:10 -0500 | [diff] [blame] | 47 | SkFont font(ToolUtils::create_portable_typeface(), 96.0f); |
Hal Canary | df2d27e | 2019-01-08 09:38:02 -0500 | [diff] [blame] | 48 | canvas->drawString("e", 20.0f, 70.0f, font, paint); |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 49 | return recorder.finishRecordingAsPicture(); |
| 50 | } |
| 51 | |
robertphillips | 54ef1a7 | 2016-04-13 10:55:07 -0700 | [diff] [blame] | 52 | // Create a picture that will draw LCD text |
| 53 | static sk_sp<SkPicture> make_LCD_picture() { |
| 54 | SkPictureRecorder recorder; |
| 55 | SkCanvas* canvas = recorder.beginRecording(100, 100, nullptr, 0); |
| 56 | canvas->clear(SK_ColorTRANSPARENT); |
| 57 | SkPaint paint; |
robertphillips | 54ef1a7 | 2016-04-13 10:55:07 -0700 | [diff] [blame] | 58 | paint.setColor(0xFFFFFFFF); |
| 59 | // this has to be small enough that it doesn't become a path |
Mike Klein | ea3f014 | 2019-03-20 11:12:10 -0500 | [diff] [blame] | 60 | SkFont font(ToolUtils::create_portable_typeface(), 36.0f); |
Hal Canary | df2d27e | 2019-01-08 09:38:02 -0500 | [diff] [blame] | 61 | font.setEdging(SkFont::Edging::kSubpixelAntiAlias); |
| 62 | canvas->drawString("e", 20.0f, 70.0f, font, paint); |
robertphillips | 54ef1a7 | 2016-04-13 10:55:07 -0700 | [diff] [blame] | 63 | return recorder.finishRecordingAsPicture(); |
| 64 | } |
| 65 | |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 66 | class PictureImageFilterGM : public skiagm::GM { |
| 67 | public: |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 68 | PictureImageFilterGM() { } |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 69 | |
| 70 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 71 | SkString onShortName() override { |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 72 | return SkString("pictureimagefilter"); |
| 73 | } |
| 74 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 75 | SkISize onISize() override { return SkISize::Make(600, 300); } |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 76 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 77 | void onOnceBeforeDraw() override { |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 78 | fPicture = make_picture(); |
robertphillips | 54ef1a7 | 2016-04-13 10:55:07 -0700 | [diff] [blame] | 79 | fLCDPicture = make_LCD_picture(); |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 80 | } |
| 81 | |
Mike Reed | 77e487d | 2017-11-09 21:50:20 +0000 | [diff] [blame] | 82 | sk_sp<SkImageFilter> make(sk_sp<SkPicture> pic, SkRect r, SkFilterQuality fq) { |
| 83 | SkISize dim = { SkScalarRoundToInt(r.width()), SkScalarRoundToInt(r.height()) }; |
| 84 | auto img = SkImage::MakeFromPicture(pic, dim, nullptr, nullptr, |
| 85 | SkImage::BitDepth::kU8, SkColorSpace::MakeSRGB()); |
| 86 | return SkImageSource::Make(img, r, r, fq); |
| 87 | } |
| 88 | sk_sp<SkImageFilter> make(SkFilterQuality fq) { |
| 89 | return make(fPicture, fPicture->cullRect(), fq); |
| 90 | } |
| 91 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 92 | void onDraw(SkCanvas* canvas) override { |
robertphillips | 54ef1a7 | 2016-04-13 10:55:07 -0700 | [diff] [blame] | 93 | canvas->clear(SK_ColorGRAY); |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 94 | { |
| 95 | SkRect srcRect = SkRect::MakeXYWH(20, 20, 30, 30); |
| 96 | SkRect emptyRect = SkRect::MakeXYWH(20, 20, 0, 0); |
| 97 | SkRect bounds = SkRect::MakeXYWH(0, 0, 100, 100); |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 98 | sk_sp<SkImageFilter> pictureSource(SkPictureImageFilter::Make(fPicture)); |
| 99 | sk_sp<SkImageFilter> pictureSourceSrcRect(SkPictureImageFilter::Make(fPicture, |
| 100 | srcRect)); |
| 101 | sk_sp<SkImageFilter> pictureSourceEmptyRect(SkPictureImageFilter::Make(fPicture, |
| 102 | emptyRect)); |
Mike Reed | 77e487d | 2017-11-09 21:50:20 +0000 | [diff] [blame] | 103 | sk_sp<SkImageFilter> pictureSourceResampled = make(kLow_SkFilterQuality); |
| 104 | sk_sp<SkImageFilter> pictureSourcePixelated = make(kNone_SkFilterQuality); |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 105 | |
Justin Novosad | 5234075 | 2014-12-02 14:50:56 -0500 | [diff] [blame] | 106 | canvas->save(); |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 107 | // Draw the picture unscaled. |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 108 | fill_rect_filtered(canvas, bounds, pictureSource); |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 109 | canvas->translate(SkIntToScalar(100), 0); |
| 110 | |
| 111 | // Draw an unscaled subset of the source picture. |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 112 | fill_rect_filtered(canvas, bounds, pictureSourceSrcRect); |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 113 | canvas->translate(SkIntToScalar(100), 0); |
| 114 | |
| 115 | // Draw the picture to an empty rect (should draw nothing). |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 116 | fill_rect_filtered(canvas, bounds, pictureSourceEmptyRect); |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 117 | canvas->translate(SkIntToScalar(100), 0); |
Justin Novosad | 5234075 | 2014-12-02 14:50:56 -0500 | [diff] [blame] | 118 | |
robertphillips | 54ef1a7 | 2016-04-13 10:55:07 -0700 | [diff] [blame] | 119 | // Draw the LCD picture to a layer |
| 120 | { |
| 121 | SkPaint stroke; |
| 122 | stroke.setStyle(SkPaint::kStroke_Style); |
| 123 | |
| 124 | canvas->drawRect(bounds, stroke); |
| 125 | |
| 126 | SkPaint paint; |
Mike Reed | 77e487d | 2017-11-09 21:50:20 +0000 | [diff] [blame] | 127 | paint.setImageFilter(make(fLCDPicture, fPicture->cullRect(), kNone_SkFilterQuality)); |
robertphillips | 54ef1a7 | 2016-04-13 10:55:07 -0700 | [diff] [blame] | 128 | |
| 129 | canvas->scale(4, 4); |
| 130 | canvas->translate(-0.9f*srcRect.fLeft, -2.45f*srcRect.fTop); |
| 131 | |
Florin Malita | 07e4adf | 2019-01-07 16:34:18 -0500 | [diff] [blame] | 132 | canvas->saveLayer(&bounds, &paint); |
robertphillips | 54ef1a7 | 2016-04-13 10:55:07 -0700 | [diff] [blame] | 133 | canvas->restore(); |
| 134 | } |
| 135 | |
Justin Novosad | 5234075 | 2014-12-02 14:50:56 -0500 | [diff] [blame] | 136 | canvas->restore(); |
| 137 | |
| 138 | // Draw the picture scaled |
| 139 | canvas->translate(0, SkIntToScalar(100)); |
| 140 | canvas->scale(200 / srcRect.width(), 200 / srcRect.height()); |
| 141 | canvas->translate(-srcRect.fLeft, -srcRect.fTop); |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 142 | fill_rect_filtered(canvas, srcRect, pictureSource); |
Justin Novosad | 5234075 | 2014-12-02 14:50:56 -0500 | [diff] [blame] | 143 | |
| 144 | // Draw the picture scaled, but rasterized at original resolution |
| 145 | canvas->translate(srcRect.width(), 0); |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 146 | fill_rect_filtered(canvas, srcRect, pictureSourceResampled); |
junov | f3c78cc | 2014-12-09 13:07:22 -0800 | [diff] [blame] | 147 | |
| 148 | // Draw the picture scaled, pixelated |
| 149 | canvas->translate(srcRect.width(), 0); |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 150 | fill_rect_filtered(canvas, srcRect, pictureSourcePixelated); |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 151 | } |
| 152 | } |
| 153 | |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 154 | private: |
reed | ca2622b | 2016-03-18 07:25:55 -0700 | [diff] [blame] | 155 | sk_sp<SkPicture> fPicture; |
robertphillips | 54ef1a7 | 2016-04-13 10:55:07 -0700 | [diff] [blame] | 156 | sk_sp<SkPicture> fLCDPicture; |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 157 | |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 158 | typedef GM INHERITED; |
| 159 | }; |
| 160 | |
| 161 | /////////////////////////////////////////////////////////////////////////////// |
| 162 | |
| 163 | DEF_GM( return new PictureImageFilterGM; ) |