senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +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" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 10 | #include "include/core/SkColor.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 11 | #include "include/core/SkImage.h" |
| 12 | #include "include/core/SkImageFilter.h" |
| 13 | #include "include/core/SkMatrix.h" |
| 14 | #include "include/core/SkPaint.h" |
| 15 | #include "include/core/SkRect.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 16 | #include "include/core/SkRefCnt.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 17 | #include "include/core/SkScalar.h" |
| 18 | #include "include/core/SkSize.h" |
| 19 | #include "include/core/SkString.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 20 | #include "include/core/SkSurface.h" |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 21 | #include "include/effects/SkImageFilters.h" |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 22 | |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 23 | #include <utility> |
| 24 | |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 25 | namespace skiagm { |
| 26 | |
| 27 | class ResizeGM : public GM { |
| 28 | public: |
| 29 | ResizeGM() { |
| 30 | this->setBGColor(0x00000000); |
| 31 | } |
| 32 | |
| 33 | protected: |
robertphillips | 549c899 | 2016-04-01 09:28:51 -0700 | [diff] [blame] | 34 | SkString onShortName() override { |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 35 | return SkString("resizeimagefilter"); |
| 36 | } |
| 37 | |
| 38 | void draw(SkCanvas* canvas, |
| 39 | const SkRect& rect, |
| 40 | const SkSize& deviceSize, |
Mike Reed | 9223665 | 2021-02-01 13:07:32 -0500 | [diff] [blame] | 41 | const SkSamplingOptions& sampling, |
robertphillips | 549c899 | 2016-04-01 09:28:51 -0700 | [diff] [blame] | 42 | sk_sp<SkImageFilter> input) { |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 43 | SkRect dstRect; |
Mike Reed | 1a4140e | 2020-12-03 11:21:31 -0500 | [diff] [blame] | 44 | canvas->getLocalToDeviceAs3x3().mapRect(&dstRect, rect); |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 45 | canvas->save(); |
reed | 80ea19c | 2015-05-12 10:37:34 -0700 | [diff] [blame] | 46 | SkScalar deviceScaleX = deviceSize.width() / dstRect.width(); |
| 47 | SkScalar deviceScaleY = deviceSize.height() / dstRect.height(); |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 48 | canvas->translate(rect.x(), rect.y()); |
| 49 | canvas->scale(deviceScaleX, deviceScaleY); |
| 50 | canvas->translate(-rect.x(), -rect.y()); |
senorblanco@chromium.org | fd0ec2c | 2014-03-25 17:35:10 +0000 | [diff] [blame] | 51 | SkMatrix matrix; |
robertphillips | 549c899 | 2016-04-01 09:28:51 -0700 | [diff] [blame] | 52 | matrix.setScale(SkScalarInvert(deviceScaleX), SkScalarInvert(deviceScaleY)); |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 53 | sk_sp<SkImageFilter> filter(SkImageFilters::MatrixTransform(matrix, |
Mike Reed | 9223665 | 2021-02-01 13:07:32 -0500 | [diff] [blame] | 54 | sampling, |
robertphillips | ae8c933 | 2016-04-05 15:09:00 -0700 | [diff] [blame] | 55 | std::move(input))); |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 56 | SkPaint filteredPaint; |
robertphillips | 549c899 | 2016-04-01 09:28:51 -0700 | [diff] [blame] | 57 | filteredPaint.setImageFilter(std::move(filter)); |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 58 | canvas->saveLayer(&rect, &filteredPaint); |
| 59 | SkPaint paint; |
| 60 | paint.setColor(0xFF00FF00); |
| 61 | SkRect ovalRect = rect; |
| 62 | ovalRect.inset(SkIntToScalar(4), SkIntToScalar(4)); |
| 63 | canvas->drawOval(ovalRect, paint); |
| 64 | canvas->restore(); // for saveLayer |
| 65 | canvas->restore(); |
| 66 | } |
| 67 | |
robertphillips | 549c899 | 2016-04-01 09:28:51 -0700 | [diff] [blame] | 68 | SkISize onISize() override { |
tfarina | f539318 | 2014-06-09 23:59:03 -0700 | [diff] [blame] | 69 | return SkISize::Make(520, 100); |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 70 | } |
| 71 | |
robertphillips | 549c899 | 2016-04-01 09:28:51 -0700 | [diff] [blame] | 72 | void onDraw(SkCanvas* canvas) override { |
senorblanco | 16b254a | 2015-04-09 11:13:24 -0700 | [diff] [blame] | 73 | canvas->clear(SK_ColorBLACK); |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 74 | |
Mike Reed | 9223665 | 2021-02-01 13:07:32 -0500 | [diff] [blame] | 75 | const SkSamplingOptions samplings[] = { |
| 76 | SkSamplingOptions(), |
| 77 | SkSamplingOptions(SkFilterMode::kLinear), |
| 78 | SkSamplingOptions(SkFilterMode::kLinear, SkMipmapMode::kLinear), |
Mike Reed | f3ac2af | 2021-02-05 12:55:38 -0500 | [diff] [blame] | 79 | SkSamplingOptions(SkCubicResampler::Mitchell()), |
Mike Reed | 9223665 | 2021-02-01 13:07:32 -0500 | [diff] [blame] | 80 | }; |
Robert Phillips | 21015b7 | 2018-05-09 15:12:23 -0400 | [diff] [blame] | 81 | const SkRect srcRect = SkRect::MakeWH(96, 96); |
| 82 | const SkSize deviceSize = SkSize::Make(16, 16); |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 83 | |
Mike Reed | 9223665 | 2021-02-01 13:07:32 -0500 | [diff] [blame] | 84 | this->draw(canvas, srcRect, deviceSize, samplings[0], nullptr); |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 85 | |
| 86 | canvas->translate(srcRect.width() + SkIntToScalar(10), 0); |
Mike Reed | 9223665 | 2021-02-01 13:07:32 -0500 | [diff] [blame] | 87 | this->draw(canvas, srcRect, deviceSize, samplings[1], nullptr); |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 88 | |
| 89 | canvas->translate(srcRect.width() + SkIntToScalar(10), 0); |
Mike Reed | 9223665 | 2021-02-01 13:07:32 -0500 | [diff] [blame] | 90 | this->draw(canvas, srcRect, deviceSize, samplings[2], nullptr); |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 91 | |
| 92 | canvas->translate(srcRect.width() + SkIntToScalar(10), 0); |
Mike Reed | 9223665 | 2021-02-01 13:07:32 -0500 | [diff] [blame] | 93 | this->draw(canvas, srcRect, deviceSize, samplings[3], nullptr); |
commit-bot@chromium.org | b659333 | 2014-03-21 16:19:28 +0000 | [diff] [blame] | 94 | |
commit-bot@chromium.org | b659333 | 2014-03-21 16:19:28 +0000 | [diff] [blame] | 95 | { |
Robert Phillips | 21015b7 | 2018-05-09 15:12:23 -0400 | [diff] [blame] | 96 | sk_sp<SkSurface> surface(SkSurface::MakeRasterN32Premul(16, 16)); |
| 97 | SkCanvas* surfaceCanvas = surface->getCanvas(); |
| 98 | surfaceCanvas->clear(0x000000); |
| 99 | { |
| 100 | SkPaint paint; |
| 101 | paint.setColor(0xFF00FF00); |
| 102 | SkRect ovalRect = SkRect::MakeWH(16, 16); |
| 103 | ovalRect.inset(SkIntToScalar(2)/3, SkIntToScalar(2)/3); |
| 104 | surfaceCanvas->drawOval(ovalRect, paint); |
| 105 | } |
| 106 | sk_sp<SkImage> image(surface->makeImageSnapshot()); |
| 107 | SkRect inRect = SkRect::MakeXYWH(-4, -4, 20, 20); |
| 108 | SkRect outRect = SkRect::MakeXYWH(-24, -24, 120, 120); |
| 109 | sk_sp<SkImageFilter> source( |
Mike Reed | 708dc4f | 2021-02-13 21:04:58 -0500 | [diff] [blame] | 110 | SkImageFilters::Image(std::move(image), inRect, outRect, |
| 111 | SkSamplingOptions({1/3.0f, 1/3.0f}))); |
Robert Phillips | 21015b7 | 2018-05-09 15:12:23 -0400 | [diff] [blame] | 112 | canvas->translate(srcRect.width() + SkIntToScalar(10), 0); |
Mike Reed | 9223665 | 2021-02-01 13:07:32 -0500 | [diff] [blame] | 113 | this->draw(canvas, srcRect, deviceSize, samplings[3], std::move(source)); |
commit-bot@chromium.org | b659333 | 2014-03-21 16:19:28 +0000 | [diff] [blame] | 114 | } |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 115 | } |
| 116 | |
| 117 | private: |
John Stiles | 7571f9e | 2020-09-02 22:42:33 -0400 | [diff] [blame] | 118 | using INHERITED = GM; |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 119 | }; |
| 120 | |
| 121 | ////////////////////////////////////////////////////////////////////////////// |
| 122 | |
robertphillips | 549c899 | 2016-04-01 09:28:51 -0700 | [diff] [blame] | 123 | DEF_GM(return new ResizeGM; ) |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 124 | |
John Stiles | a6841be | 2020-08-06 14:11:56 -0400 | [diff] [blame] | 125 | } // namespace skiagm |