| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "gm/gm.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkFont.h" |
| #include "include/core/SkImageInfo.h" |
| #include "include/core/SkPaint.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkRefCnt.h" |
| #include "include/core/SkScalar.h" |
| #include "include/core/SkSize.h" |
| #include "include/core/SkString.h" |
| #include "include/core/SkSurface.h" |
| #include "include/core/SkSurfaceProps.h" |
| #include "include/core/SkTextBlob.h" |
| #include "include/core/SkTypeface.h" |
| #include "tools/ToolUtils.h" |
| #include "tools/fonts/FontToolUtils.h" |
| |
| // This tests that we don't try to reuse textblobs from the GPU textblob cache across pixel geometry |
| // changes when we have LCD. crbug/486744 |
| namespace skiagm { |
| class TextBlobGeometryChange : public GM { |
| public: |
| TextBlobGeometryChange() { } |
| |
| protected: |
| SkString getName() const override { return SkString("textblobgeometrychange"); } |
| |
| SkISize getISize() override { return SkISize::Make(kWidth, kHeight); } |
| |
| void onDraw(SkCanvas* canvas) override { |
| const char text[] = "Hamburgefons"; |
| |
| SkFont font(ToolUtils::DefaultPortableTypeface(), 20); |
| font.setEdging(SkFont::Edging::kSubpixelAntiAlias); |
| |
| SkTextBlobBuilder builder; |
| |
| ToolUtils::add_to_text_blob(&builder, text, font, 10, 10); |
| |
| sk_sp<SkTextBlob> blob(builder.make()); |
| |
| SkImageInfo info = SkImageInfo::MakeN32Premul(200, 200); |
| SkSurfaceProps props(0, kUnknown_SkPixelGeometry); |
| auto surface = ToolUtils::makeSurface(canvas, info, &props); |
| SkCanvas* c = surface->getCanvas(); |
| |
| // LCD text on white background |
| SkRect rect = SkRect::MakeLTRB(0.f, 0.f, SkIntToScalar(kWidth), kHeight / 2.f); |
| SkPaint rectPaint; |
| rectPaint.setColor(0xffffffff); |
| canvas->drawRect(rect, rectPaint); |
| canvas->drawTextBlob(blob, 10, 50, SkPaint()); |
| |
| // This should not look garbled since we should disable LCD text in this case |
| // (i.e., unknown pixel geometry) |
| c->clear(0x00ffffff); |
| c->drawTextBlob(blob, 10, 150, SkPaint()); |
| surface->draw(canvas, 0, 0); |
| } |
| |
| private: |
| inline static constexpr int kWidth = 200; |
| inline static constexpr int kHeight = 200; |
| |
| using INHERITED = GM; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| DEF_GM(return new TextBlobGeometryChange;) |
| } // namespace skiagm |