reed@google.com | b83cb9b | 2013-05-21 21:33:11 +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" |
| 9 | #include "SkCanvas.h" |
| 10 | #include "SkLerpXfermode.h" |
| 11 | |
| 12 | static void show_circlelayers(SkCanvas* canvas, SkXfermode* mode) { |
| 13 | SkPaint paint; |
| 14 | paint.setAntiAlias(true); |
| 15 | SkRect r, bounds = { 10, 10, 110, 110 }; |
| 16 | |
| 17 | r = bounds; |
| 18 | r.fRight = bounds.centerX(); |
| 19 | canvas->drawRect(r, paint); |
| 20 | |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 21 | canvas->saveLayer(&bounds, nullptr); |
skia.committer@gmail.com | b148aca | 2013-05-22 07:01:13 +0000 | [diff] [blame] | 22 | |
reed@google.com | b83cb9b | 2013-05-21 21:33:11 +0000 | [diff] [blame] | 23 | paint.setColor(0x80FF0000); |
| 24 | r = bounds; |
| 25 | r.inset(20, 0); |
| 26 | canvas->drawOval(r, paint); |
skia.committer@gmail.com | b148aca | 2013-05-22 07:01:13 +0000 | [diff] [blame] | 27 | |
reed@google.com | b83cb9b | 2013-05-21 21:33:11 +0000 | [diff] [blame] | 28 | paint.setColor(0x800000FF); |
| 29 | r = bounds; |
| 30 | r.inset(0, 20); |
| 31 | paint.setXfermode(mode); |
| 32 | canvas->drawOval(r, paint); |
skia.committer@gmail.com | b148aca | 2013-05-22 07:01:13 +0000 | [diff] [blame] | 33 | |
reed@google.com | b83cb9b | 2013-05-21 21:33:11 +0000 | [diff] [blame] | 34 | canvas->restore(); |
| 35 | } |
| 36 | |
halcanary | 2a24338 | 2015-09-09 08:16:41 -0700 | [diff] [blame] | 37 | DEF_SIMPLE_GM(lerpmode, canvas, 240, 120) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 38 | show_circlelayers(canvas, nullptr); |
reed@google.com | b83cb9b | 2013-05-21 21:33:11 +0000 | [diff] [blame] | 39 | canvas->translate(150, 0); |
| 40 | SkAutoTUnref<SkXfermode> mode(SkLerpXfermode::Create(0.5f)); |
| 41 | show_circlelayers(canvas, mode.get()); |
halcanary | 2a24338 | 2015-09-09 08:16:41 -0700 | [diff] [blame] | 42 | } |