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 | |
| 12 | #define WIDTH 400 |
| 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() { |
| 30 | fBitmap.setConfig(SkBitmap::kARGB_8888_Config, 80, 80); |
| 31 | fBitmap.allocPixels(); |
| 32 | SkBitmapDevice device(fBitmap); |
| 33 | SkCanvas canvas(&device); |
| 34 | canvas.clear(0x00000000); |
| 35 | SkPaint paint; |
| 36 | paint.setAntiAlias(true); |
| 37 | paint.setColor(0xD000D000); |
| 38 | paint.setTextSize(SkIntToScalar(96)); |
| 39 | const char* str = "e"; |
| 40 | canvas.drawText(str, strlen(str), SkIntToScalar(15), SkIntToScalar(65), paint); |
| 41 | } |
| 42 | |
| 43 | void make_checkerboard() { |
| 44 | fCheckerboard.setConfig(SkBitmap::kARGB_8888_Config, 80, 80); |
| 45 | fCheckerboard.allocPixels(); |
| 46 | SkBitmapDevice device(fCheckerboard); |
| 47 | SkCanvas canvas(&device); |
| 48 | canvas.clear(0x00000000); |
| 49 | SkPaint darkPaint; |
| 50 | darkPaint.setColor(0xFF404040); |
| 51 | SkPaint lightPaint; |
| 52 | lightPaint.setColor(0xFFA0A0A0); |
| 53 | for (int y = 0; y < 80; y += 16) { |
| 54 | for (int x = 0; x < 80; x += 16) { |
| 55 | canvas.save(); |
| 56 | canvas.translate(SkIntToScalar(x), SkIntToScalar(y)); |
| 57 | canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint); |
| 58 | canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint); |
| 59 | canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint); |
| 60 | canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint); |
| 61 | canvas.restore(); |
| 62 | } |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | virtual SkISize onISize() { |
| 67 | return make_isize(WIDTH, HEIGHT); |
| 68 | } |
| 69 | |
| 70 | void drawClippedBitmap(SkCanvas* canvas, const SkBitmap& bitmap, const SkPaint& paint, |
| 71 | SkScalar x, SkScalar y) { |
| 72 | canvas->save(); |
| 73 | canvas->clipRect(SkRect::MakeXYWH(x, y, |
| 74 | SkIntToScalar(bitmap.width()), SkIntToScalar(bitmap.height()))); |
| 75 | canvas->drawBitmap(bitmap, x, y, &paint); |
| 76 | canvas->restore(); |
| 77 | } |
| 78 | |
| 79 | virtual void onDraw(SkCanvas* canvas) { |
| 80 | if (!fInitialized) { |
| 81 | make_bitmap(); |
| 82 | make_checkerboard(); |
| 83 | fInitialized = true; |
| 84 | } |
| 85 | canvas->clear(0x00000000); |
| 86 | SkPaint paint; |
| 87 | |
| 88 | int x = 0, y = 0; |
| 89 | for (size_t i = 0; i < 4; i++) { |
| 90 | SkBitmap* bitmap = (i & 0x01) ? &fCheckerboard : &fBitmap; |
| 91 | SkIRect cropRect = SkIRect::MakeXYWH(x + i * 12, |
| 92 | y + i * 8, |
| 93 | bitmap->width() - i * 8, |
| 94 | bitmap->height() - i * 12); |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame^] | 95 | #ifdef SK_CROP_RECT_IS_INT |
| 96 | SkIRect rect = cropRect; |
| 97 | #else |
| 98 | SkImageFilter::CropRect rect(SkRect::Make(cropRect)); |
| 99 | #endif |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 100 | SkAutoTUnref<SkImageFilter> tileInput(SkNEW_ARGS(SkBitmapSource, (*bitmap))); |
| 101 | SkScalar dx = SkIntToScalar(i*5); |
| 102 | SkScalar dy = SkIntToScalar(i*10); |
| 103 | SkAutoTUnref<SkImageFilter> filter(SkNEW_ARGS( |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame^] | 104 | SkOffsetImageFilter, (dx, dy, tileInput, &rect))); |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 105 | paint.setImageFilter(filter); |
| 106 | drawClippedBitmap(canvas, *bitmap, paint, SkIntToScalar(x), SkIntToScalar(y)); |
| 107 | x += bitmap->width() + MARGIN; |
| 108 | if (x + bitmap->width() > WIDTH) { |
| 109 | x = 0; |
| 110 | y += bitmap->height() + MARGIN; |
| 111 | } |
| 112 | } |
| 113 | } |
| 114 | private: |
| 115 | typedef GM INHERITED; |
| 116 | SkBitmap fBitmap, fCheckerboard; |
| 117 | bool fInitialized; |
| 118 | }; |
| 119 | |
| 120 | ////////////////////////////////////////////////////////////////////////////// |
| 121 | |
| 122 | static GM* MyFactory(void*) { return new OffsetImageFilterGM; } |
| 123 | static GMRegistry reg(MyFactory); |
| 124 | |
| 125 | } |