diff options
author | bsalomon <bsalomon@google.com> | 2015-04-16 06:54:28 -0700 |
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committer | Commit bot <commit-bot@chromium.org> | 2015-04-16 06:54:28 -0700 |
commit | 8cf1d9548740e3ab7617cb920db4086b4d75a365 (patch) | |
tree | 97c3c6b0c27e75e619fc041590996ebd9b07d52b /gm/bmpfilterqualityrepeat.cpp | |
parent | aab35d91b8b80acd1902594bbf542083fdfa4bb7 (diff) |
Add GM that tests bmp filter qualities with repeat mode
TBR=reed@google.com
Review URL: https://codereview.chromium.org/1086203002
Diffstat (limited to 'gm/bmpfilterqualityrepeat.cpp')
-rw-r--r-- | gm/bmpfilterqualityrepeat.cpp | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/gm/bmpfilterqualityrepeat.cpp b/gm/bmpfilterqualityrepeat.cpp new file mode 100644 index 0000000000..f533860201 --- /dev/null +++ b/gm/bmpfilterqualityrepeat.cpp @@ -0,0 +1,79 @@ +/* + * Copyright 2015 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include "gm.h" + +#include "SkShader.h" + +// Inspired by svg/as-border-image/svg-as-border-image.html. Draws a four-color checker board bitmap +// such that it is stretched and repeat tiled with different filter qualities. It is testing whether +// the bmp filter respects the repeat mode at the tile seams. +class BmpFilterQualityRepeat : public skiagm::GM { +public: + BmpFilterQualityRepeat() { this->setBGColor(0xFFCCBBAA); } + +protected: + + void onOnceBeforeDraw() override { + fBmp.allocN32Pixels(40, 40, true); + SkCanvas canvas(fBmp); + SkBitmap colorBmp; + colorBmp.allocN32Pixels(20, 20, true); + colorBmp.eraseColor(0xFFFF0000); + canvas.drawBitmap(colorBmp, 0, 0); + colorBmp.eraseColor(0xFF008200); + canvas.drawBitmap(colorBmp, 20, 0); + colorBmp.eraseColor(0xFFFF9000); + canvas.drawBitmap(colorBmp, 0, 20); + colorBmp.eraseColor(0xFF2000FF); + canvas.drawBitmap(colorBmp, 20, 20); + } + + SkString onShortName() override { return SkString("bmp_filter_quality_repeat"); } + + SkISize onISize() override { return SkISize::Make(810, 235); } + + void onDraw(SkCanvas* canvas) override { + + static const struct { + SkFilterQuality fQuality; + const char* fName; + } kQualities[] = { + {kNone_SkFilterQuality, "none"}, + {kLow_SkFilterQuality, "low"}, + {kMedium_SkFilterQuality, "medium"}, + {kHigh_SkFilterQuality, "high"}, + }; + + for (size_t q = 0; q < SK_ARRAY_COUNT(kQualities); ++q) { + SkPaint paint; + paint.setFilterQuality(kQualities[q].fQuality); + SkPaint bmpPaint(paint); + SkMatrix lm = SkMatrix::I(); + lm.setScaleX(2.5); + lm.setTranslateX(423); + lm.setTranslateY(330); + + static const SkShader::TileMode kTM = SkShader::kRepeat_TileMode; + bmpPaint.setShader(SkShader::CreateBitmapShader(fBmp, kTM, kTM, &lm))->unref(); + SkRect rect = SkRect::MakeLTRB(20, 60, 220, 210); + canvas->drawRect(rect, bmpPaint); + paint.setAntiAlias(true); + canvas->drawText(kQualities[q].fName, strlen(kQualities[q].fName), 20, 40, paint); + canvas->translate(250, 0); + } + } + +private: + SkBitmap fBmp; + + typedef skiagm::GM INHERITED; +}; + +////////////////////////////////////////////////////////////////////////////// + +DEF_GM( return SkNEW(BmpFilterQualityRepeat); ) |