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" |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 25 | #include "include/effects/SkImageFilters.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 26 | #include "tools/ToolUtils.h" |
Mike Reed | 77e487d | 2017-11-09 21:50:20 +0000 | [diff] [blame] | 27 | |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 28 | // This GM exercises the SkPictureImageFilter ImageFilter class. |
| 29 | |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 30 | static void fill_rect_filtered(SkCanvas* canvas, |
| 31 | const SkRect& clipRect, |
| 32 | sk_sp<SkImageFilter> filter) { |
| 33 | SkPaint paint; |
| 34 | paint.setImageFilter(filter); |
| 35 | canvas->save(); |
| 36 | canvas->clipRect(clipRect); |
| 37 | canvas->drawPaint(paint); |
| 38 | canvas->restore(); |
| 39 | } |
| 40 | |
| 41 | static sk_sp<SkPicture> make_picture() { |
| 42 | SkPictureRecorder recorder; |
| 43 | SkCanvas* canvas = recorder.beginRecording(100, 100, nullptr, 0); |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 44 | SkPaint paint; |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 45 | paint.setColor(0xFFFFFFFF); |
Mike Klein | ea3f014 | 2019-03-20 11:12:10 -0500 | [diff] [blame] | 46 | SkFont font(ToolUtils::create_portable_typeface(), 96.0f); |
Hal Canary | df2d27e | 2019-01-08 09:38:02 -0500 | [diff] [blame] | 47 | canvas->drawString("e", 20.0f, 70.0f, font, paint); |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 48 | return recorder.finishRecordingAsPicture(); |
| 49 | } |
| 50 | |
robertphillips | 54ef1a7 | 2016-04-13 10:55:07 -0700 | [diff] [blame] | 51 | // Create a picture that will draw LCD text |
| 52 | static sk_sp<SkPicture> make_LCD_picture() { |
| 53 | SkPictureRecorder recorder; |
| 54 | SkCanvas* canvas = recorder.beginRecording(100, 100, nullptr, 0); |
| 55 | canvas->clear(SK_ColorTRANSPARENT); |
| 56 | SkPaint paint; |
robertphillips | 54ef1a7 | 2016-04-13 10:55:07 -0700 | [diff] [blame] | 57 | paint.setColor(0xFFFFFFFF); |
| 58 | // 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] | 59 | SkFont font(ToolUtils::create_portable_typeface(), 36.0f); |
Hal Canary | df2d27e | 2019-01-08 09:38:02 -0500 | [diff] [blame] | 60 | font.setEdging(SkFont::Edging::kSubpixelAntiAlias); |
| 61 | canvas->drawString("e", 20.0f, 70.0f, font, paint); |
robertphillips | 54ef1a7 | 2016-04-13 10:55:07 -0700 | [diff] [blame] | 62 | return recorder.finishRecordingAsPicture(); |
| 63 | } |
| 64 | |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 65 | class PictureImageFilterGM : public skiagm::GM { |
| 66 | public: |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 67 | PictureImageFilterGM() { } |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 68 | |
| 69 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 70 | SkString onShortName() override { |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 71 | return SkString("pictureimagefilter"); |
| 72 | } |
| 73 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 74 | SkISize onISize() override { return SkISize::Make(600, 300); } |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 75 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 76 | void onOnceBeforeDraw() override { |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 77 | fPicture = make_picture(); |
robertphillips | 54ef1a7 | 2016-04-13 10:55:07 -0700 | [diff] [blame] | 78 | fLCDPicture = make_LCD_picture(); |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 79 | } |
| 80 | |
Mike Reed | 77e487d | 2017-11-09 21:50:20 +0000 | [diff] [blame] | 81 | sk_sp<SkImageFilter> make(sk_sp<SkPicture> pic, SkRect r, SkFilterQuality fq) { |
| 82 | SkISize dim = { SkScalarRoundToInt(r.width()), SkScalarRoundToInt(r.height()) }; |
| 83 | auto img = SkImage::MakeFromPicture(pic, dim, nullptr, nullptr, |
| 84 | SkImage::BitDepth::kU8, SkColorSpace::MakeSRGB()); |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 85 | return SkImageFilters::Image(img, r, r, fq); |
Mike Reed | 77e487d | 2017-11-09 21:50:20 +0000 | [diff] [blame] | 86 | } |
| 87 | sk_sp<SkImageFilter> make(SkFilterQuality fq) { |
| 88 | return make(fPicture, fPicture->cullRect(), fq); |
| 89 | } |
| 90 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 91 | void onDraw(SkCanvas* canvas) override { |
robertphillips | 54ef1a7 | 2016-04-13 10:55:07 -0700 | [diff] [blame] | 92 | canvas->clear(SK_ColorGRAY); |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 93 | { |
| 94 | SkRect srcRect = SkRect::MakeXYWH(20, 20, 30, 30); |
| 95 | SkRect emptyRect = SkRect::MakeXYWH(20, 20, 0, 0); |
| 96 | SkRect bounds = SkRect::MakeXYWH(0, 0, 100, 100); |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 97 | sk_sp<SkImageFilter> pictureSource(SkImageFilters::Picture(fPicture)); |
| 98 | sk_sp<SkImageFilter> pictureSourceSrcRect(SkImageFilters::Picture(fPicture, srcRect)); |
| 99 | sk_sp<SkImageFilter> pictureSourceEmptyRect(SkImageFilters::Picture(fPicture, |
| 100 | emptyRect)); |
Mike Reed | 77e487d | 2017-11-09 21:50:20 +0000 | [diff] [blame] | 101 | sk_sp<SkImageFilter> pictureSourceResampled = make(kLow_SkFilterQuality); |
| 102 | sk_sp<SkImageFilter> pictureSourcePixelated = make(kNone_SkFilterQuality); |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 103 | |
Justin Novosad | 5234075 | 2014-12-02 14:50:56 -0500 | [diff] [blame] | 104 | canvas->save(); |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 105 | // Draw the picture unscaled. |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 106 | fill_rect_filtered(canvas, bounds, pictureSource); |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 107 | canvas->translate(SkIntToScalar(100), 0); |
| 108 | |
| 109 | // Draw an unscaled subset of the source picture. |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 110 | fill_rect_filtered(canvas, bounds, pictureSourceSrcRect); |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 111 | canvas->translate(SkIntToScalar(100), 0); |
| 112 | |
| 113 | // Draw the picture to an empty rect (should draw nothing). |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 114 | fill_rect_filtered(canvas, bounds, pictureSourceEmptyRect); |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 115 | canvas->translate(SkIntToScalar(100), 0); |
Justin Novosad | 5234075 | 2014-12-02 14:50:56 -0500 | [diff] [blame] | 116 | |
robertphillips | 54ef1a7 | 2016-04-13 10:55:07 -0700 | [diff] [blame] | 117 | // Draw the LCD picture to a layer |
| 118 | { |
| 119 | SkPaint stroke; |
| 120 | stroke.setStyle(SkPaint::kStroke_Style); |
| 121 | |
| 122 | canvas->drawRect(bounds, stroke); |
| 123 | |
| 124 | SkPaint paint; |
Mike Reed | 77e487d | 2017-11-09 21:50:20 +0000 | [diff] [blame] | 125 | paint.setImageFilter(make(fLCDPicture, fPicture->cullRect(), kNone_SkFilterQuality)); |
robertphillips | 54ef1a7 | 2016-04-13 10:55:07 -0700 | [diff] [blame] | 126 | |
| 127 | canvas->scale(4, 4); |
| 128 | canvas->translate(-0.9f*srcRect.fLeft, -2.45f*srcRect.fTop); |
| 129 | |
Florin Malita | 07e4adf | 2019-01-07 16:34:18 -0500 | [diff] [blame] | 130 | canvas->saveLayer(&bounds, &paint); |
robertphillips | 54ef1a7 | 2016-04-13 10:55:07 -0700 | [diff] [blame] | 131 | canvas->restore(); |
| 132 | } |
| 133 | |
Justin Novosad | 5234075 | 2014-12-02 14:50:56 -0500 | [diff] [blame] | 134 | canvas->restore(); |
| 135 | |
| 136 | // Draw the picture scaled |
| 137 | canvas->translate(0, SkIntToScalar(100)); |
| 138 | canvas->scale(200 / srcRect.width(), 200 / srcRect.height()); |
| 139 | canvas->translate(-srcRect.fLeft, -srcRect.fTop); |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 140 | fill_rect_filtered(canvas, srcRect, pictureSource); |
Justin Novosad | 5234075 | 2014-12-02 14:50:56 -0500 | [diff] [blame] | 141 | |
| 142 | // Draw the picture scaled, but rasterized at original resolution |
| 143 | canvas->translate(srcRect.width(), 0); |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 144 | fill_rect_filtered(canvas, srcRect, pictureSourceResampled); |
junov | f3c78cc | 2014-12-09 13:07:22 -0800 | [diff] [blame] | 145 | |
| 146 | // Draw the picture scaled, pixelated |
| 147 | canvas->translate(srcRect.width(), 0); |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 148 | fill_rect_filtered(canvas, srcRect, pictureSourcePixelated); |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 149 | } |
| 150 | } |
| 151 | |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 152 | private: |
reed | ca2622b | 2016-03-18 07:25:55 -0700 | [diff] [blame] | 153 | sk_sp<SkPicture> fPicture; |
robertphillips | 54ef1a7 | 2016-04-13 10:55:07 -0700 | [diff] [blame] | 154 | sk_sp<SkPicture> fLCDPicture; |
robertphillips | 5ff17b1 | 2016-03-28 13:13:42 -0700 | [diff] [blame] | 155 | |
senorblanco@chromium.org | 5333300 | 2013-12-12 23:28:52 +0000 | [diff] [blame] | 156 | typedef GM INHERITED; |
| 157 | }; |
| 158 | |
| 159 | /////////////////////////////////////////////////////////////////////////////// |
| 160 | |
| 161 | DEF_GM( return new PictureImageFilterGM; ) |