commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +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 "SkOffsetImageFilter.h" |
| 10 | #include "SkBitmapSource.h" |
| 11 | |
senorblanco@chromium.org | e09244d | 2014-03-04 19:05:25 +0000 | [diff] [blame] | 12 | #define WIDTH 600 |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 13 | #define HEIGHT 100 |
| 14 | #define MARGIN 12 |
| 15 | |
| 16 | namespace skiagm { |
| 17 | |
| 18 | class OffsetImageFilterGM : public GM { |
| 19 | public: |
| 20 | OffsetImageFilterGM() : fInitialized(false) { |
| 21 | this->setBGColor(0xFF000000); |
| 22 | } |
| 23 | |
| 24 | protected: |
| 25 | virtual SkString onShortName() { |
| 26 | return SkString("offsetimagefilter"); |
| 27 | } |
| 28 | |
| 29 | void make_bitmap() { |
reed@google.com | eb9a46c | 2014-01-25 16:46:20 +0000 | [diff] [blame] | 30 | fBitmap.allocN32Pixels(80, 80); |
commit-bot@chromium.org | c3bd8af | 2014-02-13 17:14:46 +0000 | [diff] [blame] | 31 | SkCanvas canvas(fBitmap); |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 32 | canvas.clear(0x00000000); |
| 33 | SkPaint paint; |
| 34 | paint.setAntiAlias(true); |
Cary Clark | 992c7b0 | 2014-07-31 08:58:44 -0400 | [diff] [blame] | 35 | sk_tool_utils::set_portable_typeface(&paint); |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 36 | paint.setColor(0xD000D000); |
| 37 | paint.setTextSize(SkIntToScalar(96)); |
| 38 | const char* str = "e"; |
| 39 | canvas.drawText(str, strlen(str), SkIntToScalar(15), SkIntToScalar(65), paint); |
| 40 | } |
| 41 | |
| 42 | void make_checkerboard() { |
commit-bot@chromium.org | c3bd8af | 2014-02-13 17:14:46 +0000 | [diff] [blame] | 43 | fCheckerboard.allocN32Pixels(80, 80); |
| 44 | SkCanvas canvas(fCheckerboard); |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 45 | canvas.clear(0x00000000); |
| 46 | SkPaint darkPaint; |
| 47 | darkPaint.setColor(0xFF404040); |
| 48 | SkPaint lightPaint; |
| 49 | lightPaint.setColor(0xFFA0A0A0); |
| 50 | for (int y = 0; y < 80; y += 16) { |
| 51 | for (int x = 0; x < 80; x += 16) { |
| 52 | canvas.save(); |
| 53 | canvas.translate(SkIntToScalar(x), SkIntToScalar(y)); |
| 54 | canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint); |
| 55 | canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint); |
| 56 | canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint); |
| 57 | canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint); |
| 58 | canvas.restore(); |
| 59 | } |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | virtual SkISize onISize() { |
tfarina | f539318 | 2014-06-09 23:59:03 -0700 | [diff] [blame] | 64 | return SkISize::Make(WIDTH, HEIGHT); |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 65 | } |
| 66 | |
senorblanco@chromium.org | e09244d | 2014-03-04 19:05:25 +0000 | [diff] [blame] | 67 | void drawClippedBitmap(SkCanvas* canvas, const SkBitmap& bitmap, const SkPaint& paint, SkScalar scale, const SkIRect& cropRect) { |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 68 | canvas->save(); |
senorblanco@chromium.org | e09244d | 2014-03-04 19:05:25 +0000 | [diff] [blame] | 69 | SkRect clipRect = SkRect::MakeWH( |
| 70 | SkIntToScalar(bitmap.width()), SkIntToScalar(bitmap.height())); |
| 71 | canvas->clipRect(clipRect); |
| 72 | canvas->scale(scale, scale); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 73 | canvas->drawBitmap(bitmap, 0, 0, &paint); |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 74 | canvas->restore(); |
senorblanco@chromium.org | e09244d | 2014-03-04 19:05:25 +0000 | [diff] [blame] | 75 | SkPaint strokePaint; |
| 76 | strokePaint.setStyle(SkPaint::kStroke_Style); |
| 77 | strokePaint.setColor(SK_ColorRED); |
| 78 | |
| 79 | // Draw a boundary rect around the intersection of the clip rect |
| 80 | // and crop rect. |
| 81 | SkMatrix scaleMatrix; |
| 82 | scaleMatrix.setScale(scale, scale); |
| 83 | SkRect cropRectFloat; |
| 84 | scaleMatrix.mapRect(&cropRectFloat, SkRect::Make(cropRect)); |
| 85 | clipRect.intersect(cropRectFloat); |
| 86 | canvas->drawRect(clipRect, strokePaint); |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 87 | } |
| 88 | |
| 89 | virtual void onDraw(SkCanvas* canvas) { |
| 90 | if (!fInitialized) { |
| 91 | make_bitmap(); |
| 92 | make_checkerboard(); |
| 93 | fInitialized = true; |
| 94 | } |
| 95 | canvas->clear(0x00000000); |
| 96 | SkPaint paint; |
| 97 | |
reed@google.com | 7fa2a65 | 2014-01-27 13:42:58 +0000 | [diff] [blame] | 98 | for (int i = 0; i < 4; i++) { |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 99 | SkBitmap* bitmap = (i & 0x01) ? &fCheckerboard : &fBitmap; |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 100 | SkIRect cropRect = SkIRect::MakeXYWH(i * 12, |
| 101 | i * 8, |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 102 | bitmap->width() - i * 8, |
| 103 | bitmap->height() - i * 12); |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 104 | SkImageFilter::CropRect rect(SkRect::Make(cropRect)); |
commit-bot@chromium.org | cac5fd5 | 2014-03-10 10:51:58 +0000 | [diff] [blame] | 105 | SkAutoTUnref<SkImageFilter> tileInput(SkBitmapSource::Create(*bitmap)); |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 106 | SkScalar dx = SkIntToScalar(i*5); |
| 107 | SkScalar dy = SkIntToScalar(i*10); |
commit-bot@chromium.org | cac5fd5 | 2014-03-10 10:51:58 +0000 | [diff] [blame] | 108 | SkAutoTUnref<SkImageFilter> filter( |
| 109 | SkOffsetImageFilter::Create(dx, dy, tileInput, &rect)); |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 110 | paint.setImageFilter(filter); |
senorblanco@chromium.org | e09244d | 2014-03-04 19:05:25 +0000 | [diff] [blame] | 111 | drawClippedBitmap(canvas, *bitmap, paint, SK_Scalar1, cropRect); |
| 112 | canvas->translate(SkIntToScalar(bitmap->width() + MARGIN), 0); |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 113 | } |
senorblanco@chromium.org | e09244d | 2014-03-04 19:05:25 +0000 | [diff] [blame] | 114 | |
| 115 | SkIRect cropRect = SkIRect::MakeXYWH(0, 0, 100, 100); |
| 116 | SkImageFilter::CropRect rect(SkRect::Make(cropRect)); |
commit-bot@chromium.org | cac5fd5 | 2014-03-10 10:51:58 +0000 | [diff] [blame] | 117 | SkAutoTUnref<SkImageFilter> filter( |
| 118 | SkOffsetImageFilter::Create(SkIntToScalar(-5), SkIntToScalar(-10), NULL, &rect)); |
senorblanco@chromium.org | e09244d | 2014-03-04 19:05:25 +0000 | [diff] [blame] | 119 | paint.setImageFilter(filter); |
| 120 | drawClippedBitmap(canvas, fBitmap, paint, SkIntToScalar(2), cropRect); |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 121 | } |
| 122 | private: |
| 123 | typedef GM INHERITED; |
| 124 | SkBitmap fBitmap, fCheckerboard; |
| 125 | bool fInitialized; |
| 126 | }; |
| 127 | |
| 128 | ////////////////////////////////////////////////////////////////////////////// |
| 129 | |
| 130 | static GM* MyFactory(void*) { return new OffsetImageFilterGM; } |
| 131 | static GMRegistry reg(MyFactory); |
| 132 | |
| 133 | } |