| /* |
| * 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(1000, 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); ) |