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| 1 /* |
| 2 * Copyright 2015 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 |
| 10 #include "SkShader.h" |
| 11 |
| 12 // Inspired by svg/as-border-image/svg-as-border-image.html. Draws a four-color
checker board bitmap |
| 13 // such that it is stretched and repeat tiled with different filter qualities. I
t is testing whether |
| 14 // the bmp filter respects the repeat mode at the tile seams. |
| 15 class BmpFilterQualityRepeat : public skiagm::GM { |
| 16 public: |
| 17 BmpFilterQualityRepeat() { this->setBGColor(0xFFCCBBAA); } |
| 18 |
| 19 protected: |
| 20 |
| 21 void onOnceBeforeDraw() override { |
| 22 fBmp.allocN32Pixels(40, 40, true); |
| 23 SkCanvas canvas(fBmp); |
| 24 SkBitmap colorBmp; |
| 25 colorBmp.allocN32Pixels(20, 20, true); |
| 26 colorBmp.eraseColor(0xFFFF0000); |
| 27 canvas.drawBitmap(colorBmp, 0, 0); |
| 28 colorBmp.eraseColor(0xFF008200); |
| 29 canvas.drawBitmap(colorBmp, 20, 0); |
| 30 colorBmp.eraseColor(0xFFFF9000); |
| 31 canvas.drawBitmap(colorBmp, 0, 20); |
| 32 colorBmp.eraseColor(0xFF2000FF); |
| 33 canvas.drawBitmap(colorBmp, 20, 20); |
| 34 } |
| 35 |
| 36 SkString onShortName() override { return SkString("bmp_filter_quality_repeat
"); } |
| 37 |
| 38 SkISize onISize() override { return SkISize::Make(810, 235); } |
| 39 |
| 40 void onDraw(SkCanvas* canvas) override { |
| 41 |
| 42 static const struct { |
| 43 SkFilterQuality fQuality; |
| 44 const char* fName; |
| 45 } kQualities[] = { |
| 46 {kNone_SkFilterQuality, "none"}, |
| 47 {kLow_SkFilterQuality, "low"}, |
| 48 {kMedium_SkFilterQuality, "medium"}, |
| 49 {kHigh_SkFilterQuality, "high"}, |
| 50 }; |
| 51 |
| 52 for (size_t q = 0; q < SK_ARRAY_COUNT(kQualities); ++q) { |
| 53 SkPaint paint; |
| 54 paint.setFilterQuality(kQualities[q].fQuality); |
| 55 SkPaint bmpPaint(paint); |
| 56 SkMatrix lm = SkMatrix::I(); |
| 57 lm.setScaleX(2.5); |
| 58 lm.setTranslateX(423); |
| 59 lm.setTranslateY(330); |
| 60 |
| 61 static const SkShader::TileMode kTM = SkShader::kRepeat_TileMode; |
| 62 bmpPaint.setShader(SkShader::CreateBitmapShader(fBmp, kTM, kTM, &lm)
)->unref(); |
| 63 SkRect rect = SkRect::MakeLTRB(20, 60, 220, 210); |
| 64 canvas->drawRect(rect, bmpPaint); |
| 65 paint.setAntiAlias(true); |
| 66 canvas->drawText(kQualities[q].fName, strlen(kQualities[q].fName), 2
0, 40, paint); |
| 67 canvas->translate(250, 0); |
| 68 } |
| 69 } |
| 70 |
| 71 private: |
| 72 SkBitmap fBmp; |
| 73 |
| 74 typedef skiagm::GM INHERITED; |
| 75 }; |
| 76 |
| 77 ////////////////////////////////////////////////////////////////////////////// |
| 78 |
| 79 DEF_GM( return SkNEW(BmpFilterQualityRepeat); ) |
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