bsalomon | 8cf1d95 | 2015-04-16 06:54:28 -0700 | [diff] [blame] | 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. It is testing whether |
| 14 | // the bmp filter respects the repeat mode at the tile seams. |
| 15 | class BmpFilterQualityRepeat : public skiagm::GM { |
| 16 | public: |
caryclark | 65cdba6 | 2015-06-15 06:51:08 -0700 | [diff] [blame] | 17 | BmpFilterQualityRepeat() { this->setBGColor(sk_tool_utils::color_to_565(0xFFCCBBAA)); } |
bsalomon | 8cf1d95 | 2015-04-16 06:54:28 -0700 | [diff] [blame] | 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); |
caryclark | 1259601 | 2015-07-29 05:27:47 -0700 | [diff] [blame] | 28 | colorBmp.eraseColor(sk_tool_utils::color_to_565(0xFF008200)); |
bsalomon | 8cf1d95 | 2015-04-16 06:54:28 -0700 | [diff] [blame] | 29 | canvas.drawBitmap(colorBmp, 20, 0); |
caryclark | 1259601 | 2015-07-29 05:27:47 -0700 | [diff] [blame] | 30 | colorBmp.eraseColor(sk_tool_utils::color_to_565(0xFFFF9000)); |
bsalomon | 8cf1d95 | 2015-04-16 06:54:28 -0700 | [diff] [blame] | 31 | canvas.drawBitmap(colorBmp, 0, 20); |
caryclark | 1259601 | 2015-07-29 05:27:47 -0700 | [diff] [blame] | 32 | colorBmp.eraseColor(sk_tool_utils::color_to_565(0xFF2000FF)); |
bsalomon | 8cf1d95 | 2015-04-16 06:54:28 -0700 | [diff] [blame] | 33 | canvas.drawBitmap(colorBmp, 20, 20); |
| 34 | } |
| 35 | |
| 36 | SkString onShortName() override { return SkString("bmp_filter_quality_repeat"); } |
| 37 | |
fmalita | b1c7f88 | 2016-11-03 11:42:49 -0700 | [diff] [blame^] | 38 | SkISize onISize() override { return SkISize::Make(1000, 400); } |
bsalomon | 8cf1d95 | 2015-04-16 06:54:28 -0700 | [diff] [blame] | 39 | |
| 40 | void onDraw(SkCanvas* canvas) override { |
fmalita | b1c7f88 | 2016-11-03 11:42:49 -0700 | [diff] [blame^] | 41 | this->drawAll(canvas, 2.5f); |
| 42 | canvas->translate(0, 250); |
| 43 | canvas->scale(0.5, 0.5); |
| 44 | this->drawAll(canvas, 1); |
| 45 | } |
bsalomon | 8cf1d95 | 2015-04-16 06:54:28 -0700 | [diff] [blame] | 46 | |
fmalita | b1c7f88 | 2016-11-03 11:42:49 -0700 | [diff] [blame^] | 47 | private: |
| 48 | void drawAll(SkCanvas* canvas, SkScalar scaleX) const { |
mtklein | dbfd7ab | 2016-09-01 11:24:54 -0700 | [diff] [blame] | 49 | constexpr struct { |
bsalomon | 8cf1d95 | 2015-04-16 06:54:28 -0700 | [diff] [blame] | 50 | SkFilterQuality fQuality; |
| 51 | const char* fName; |
| 52 | } kQualities[] = { |
| 53 | {kNone_SkFilterQuality, "none"}, |
| 54 | {kLow_SkFilterQuality, "low"}, |
| 55 | {kMedium_SkFilterQuality, "medium"}, |
| 56 | {kHigh_SkFilterQuality, "high"}, |
| 57 | }; |
| 58 | |
fmalita | b1c7f88 | 2016-11-03 11:42:49 -0700 | [diff] [blame^] | 59 | SkRect rect = SkRect::MakeLTRB(20, 60, 220, 210); |
| 60 | SkMatrix lm = SkMatrix::I(); |
| 61 | lm.setScaleX(scaleX); |
| 62 | lm.setTranslateX(423); |
| 63 | lm.setTranslateY(330); |
bsalomon | 8cf1d95 | 2015-04-16 06:54:28 -0700 | [diff] [blame] | 64 | |
fmalita | b1c7f88 | 2016-11-03 11:42:49 -0700 | [diff] [blame^] | 65 | SkPaint textPaint; |
| 66 | sk_tool_utils::set_portable_typeface(&textPaint); |
| 67 | textPaint.setAntiAlias(true); |
| 68 | |
| 69 | SkPaint bmpPaint(textPaint); |
| 70 | |
| 71 | SkAutoCanvasRestore acr(canvas, true); |
| 72 | |
| 73 | for (size_t q = 0; q < SK_ARRAY_COUNT(kQualities); ++q) { |
mtklein | dbfd7ab | 2016-09-01 11:24:54 -0700 | [diff] [blame] | 74 | constexpr SkShader::TileMode kTM = SkShader::kRepeat_TileMode; |
reed | 2ad1aa6 | 2016-03-09 09:50:50 -0800 | [diff] [blame] | 75 | bmpPaint.setShader(SkShader::MakeBitmapShader(fBmp, kTM, kTM, &lm)); |
fmalita | b1c7f88 | 2016-11-03 11:42:49 -0700 | [diff] [blame^] | 76 | bmpPaint.setFilterQuality(kQualities[q].fQuality); |
bsalomon | 8cf1d95 | 2015-04-16 06:54:28 -0700 | [diff] [blame] | 77 | canvas->drawRect(rect, bmpPaint); |
fmalita | b1c7f88 | 2016-11-03 11:42:49 -0700 | [diff] [blame^] | 78 | canvas->drawText(kQualities[q].fName, strlen(kQualities[q].fName), 20, 40, textPaint); |
bsalomon | 8cf1d95 | 2015-04-16 06:54:28 -0700 | [diff] [blame] | 79 | canvas->translate(250, 0); |
| 80 | } |
fmalita | b1c7f88 | 2016-11-03 11:42:49 -0700 | [diff] [blame^] | 81 | |
bsalomon | 8cf1d95 | 2015-04-16 06:54:28 -0700 | [diff] [blame] | 82 | } |
| 83 | |
bsalomon | 8cf1d95 | 2015-04-16 06:54:28 -0700 | [diff] [blame] | 84 | SkBitmap fBmp; |
| 85 | |
| 86 | typedef skiagm::GM INHERITED; |
| 87 | }; |
| 88 | |
| 89 | ////////////////////////////////////////////////////////////////////////////// |
| 90 | |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 91 | DEF_GM(return new BmpFilterQualityRepeat;) |