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 | |
| 8 | #include "gm.h" |
commit-bot@chromium.org | b659333 | 2014-03-21 16:19:28 +0000 | [diff] [blame] | 9 | #include "SkBitmapSource.h" |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 10 | #include "SkColor.h" |
commit-bot@chromium.org | b659333 | 2014-03-21 16:19:28 +0000 | [diff] [blame] | 11 | #include "SkRefCnt.h" |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 12 | |
| 13 | namespace skiagm { |
| 14 | |
| 15 | class ResizeGM : public GM { |
| 16 | public: |
| 17 | ResizeGM() { |
| 18 | this->setBGColor(0x00000000); |
| 19 | } |
| 20 | |
| 21 | protected: |
| 22 | virtual SkString onShortName() { |
| 23 | return SkString("resizeimagefilter"); |
| 24 | } |
| 25 | |
| 26 | void draw(SkCanvas* canvas, |
| 27 | const SkRect& rect, |
| 28 | const SkSize& deviceSize, |
reed | 93a1215 | 2015-03-16 10:08:34 -0700 | [diff] [blame] | 29 | SkFilterQuality filterQuality, |
commit-bot@chromium.org | b659333 | 2014-03-21 16:19:28 +0000 | [diff] [blame] | 30 | SkImageFilter* input = NULL) { |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 31 | SkRect dstRect; |
| 32 | canvas->getTotalMatrix().mapRect(&dstRect, rect); |
| 33 | canvas->save(); |
reed | 80ea19c | 2015-05-12 10:37:34 -0700 | [diff] [blame] | 34 | SkScalar deviceScaleX = deviceSize.width() / dstRect.width(); |
| 35 | SkScalar deviceScaleY = deviceSize.height() / dstRect.height(); |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 36 | canvas->translate(rect.x(), rect.y()); |
| 37 | canvas->scale(deviceScaleX, deviceScaleY); |
| 38 | canvas->translate(-rect.x(), -rect.y()); |
senorblanco@chromium.org | fd0ec2c | 2014-03-25 17:35:10 +0000 | [diff] [blame] | 39 | SkMatrix matrix; |
| 40 | matrix.setScale(SkScalarInvert(deviceScaleX), |
| 41 | SkScalarInvert(deviceScaleY)); |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 42 | SkAutoTUnref<SkImageFilter> imageFilter( |
senorblanco | 8c874ee | 2015-03-20 06:38:17 -0700 | [diff] [blame] | 43 | SkImageFilter::CreateMatrixFilter(matrix, filterQuality, input)); |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 44 | SkPaint filteredPaint; |
| 45 | filteredPaint.setImageFilter(imageFilter.get()); |
| 46 | canvas->saveLayer(&rect, &filteredPaint); |
| 47 | SkPaint paint; |
| 48 | paint.setColor(0xFF00FF00); |
| 49 | SkRect ovalRect = rect; |
| 50 | ovalRect.inset(SkIntToScalar(4), SkIntToScalar(4)); |
| 51 | canvas->drawOval(ovalRect, paint); |
| 52 | canvas->restore(); // for saveLayer |
| 53 | canvas->restore(); |
| 54 | } |
| 55 | |
| 56 | virtual SkISize onISize() { |
tfarina | f539318 | 2014-06-09 23:59:03 -0700 | [diff] [blame] | 57 | return SkISize::Make(520, 100); |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 58 | } |
| 59 | |
| 60 | virtual void onDraw(SkCanvas* canvas) { |
senorblanco | 16b254a | 2015-04-09 11:13:24 -0700 | [diff] [blame] | 61 | canvas->clear(SK_ColorBLACK); |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 62 | |
| 63 | SkRect srcRect = SkRect::MakeWH(96, 96); |
| 64 | |
| 65 | SkSize deviceSize = SkSize::Make(16, 16); |
| 66 | draw(canvas, |
| 67 | srcRect, |
| 68 | deviceSize, |
reed | 93a1215 | 2015-03-16 10:08:34 -0700 | [diff] [blame] | 69 | kNone_SkFilterQuality); |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 70 | |
| 71 | canvas->translate(srcRect.width() + SkIntToScalar(10), 0); |
| 72 | draw(canvas, |
| 73 | srcRect, |
| 74 | deviceSize, |
reed | 93a1215 | 2015-03-16 10:08:34 -0700 | [diff] [blame] | 75 | kLow_SkFilterQuality); |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 76 | |
| 77 | canvas->translate(srcRect.width() + SkIntToScalar(10), 0); |
| 78 | draw(canvas, |
| 79 | srcRect, |
| 80 | deviceSize, |
reed | 93a1215 | 2015-03-16 10:08:34 -0700 | [diff] [blame] | 81 | kMedium_SkFilterQuality); |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 82 | |
| 83 | canvas->translate(srcRect.width() + SkIntToScalar(10), 0); |
| 84 | draw(canvas, |
| 85 | srcRect, |
| 86 | deviceSize, |
reed | 93a1215 | 2015-03-16 10:08:34 -0700 | [diff] [blame] | 87 | kHigh_SkFilterQuality); |
commit-bot@chromium.org | b659333 | 2014-03-21 16:19:28 +0000 | [diff] [blame] | 88 | |
| 89 | SkBitmap bitmap; |
| 90 | bitmap.allocN32Pixels(16, 16); |
| 91 | bitmap.eraseARGB(0x00, 0x00, 0x00, 0x00); |
| 92 | { |
robertphillips | 9a53fd7 | 2015-06-22 09:46:59 -0700 | [diff] [blame] | 93 | SkCanvas bitmapCanvas(bitmap); |
commit-bot@chromium.org | b659333 | 2014-03-21 16:19:28 +0000 | [diff] [blame] | 94 | SkPaint paint; |
| 95 | paint.setColor(0xFF00FF00); |
| 96 | SkRect ovalRect = SkRect::MakeWH(16, 16); |
reed | 80ea19c | 2015-05-12 10:37:34 -0700 | [diff] [blame] | 97 | ovalRect.inset(SkIntToScalar(2)/3, SkIntToScalar(2)/3); |
commit-bot@chromium.org | b659333 | 2014-03-21 16:19:28 +0000 | [diff] [blame] | 98 | bitmapCanvas.drawOval(ovalRect, paint); |
| 99 | } |
| 100 | SkRect inRect = SkRect::MakeXYWH(-4, -4, 20, 20); |
| 101 | SkRect outRect = SkRect::MakeXYWH(-24, -24, 120, 120); |
| 102 | SkAutoTUnref<SkBitmapSource> source(SkBitmapSource::Create(bitmap, inRect, outRect)); |
| 103 | canvas->translate(srcRect.width() + SkIntToScalar(10), 0); |
| 104 | draw(canvas, |
| 105 | srcRect, |
| 106 | deviceSize, |
reed | 93a1215 | 2015-03-16 10:08:34 -0700 | [diff] [blame] | 107 | kHigh_SkFilterQuality, |
commit-bot@chromium.org | b659333 | 2014-03-21 16:19:28 +0000 | [diff] [blame] | 108 | source.get()); |
senorblanco@chromium.org | a612d4c | 2014-01-15 04:49:18 +0000 | [diff] [blame] | 109 | } |
| 110 | |
| 111 | private: |
| 112 | typedef GM INHERITED; |
| 113 | }; |
| 114 | |
| 115 | ////////////////////////////////////////////////////////////////////////////// |
| 116 | |
| 117 | static GM* MyFactory(void*) { return new ResizeGM; } |
| 118 | static GMRegistry reg(MyFactory); |
| 119 | |
| 120 | } |