1 /* 2 * Copyright 2015 Google Inc. 3 * 4 * Use of this source code is governed by a BD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #include "gm.h" 9 #include "sk_tool_utils.h" 10 11 #include "SkCanvas.h" 12 #include "SkSurface.h" 13 #include "SkTextBlob.h" 14 #include "GrContext.h" 15 16 // This tests that we correctly regenerate textblobs after freeing all gpu resources crbug/491350 17 namespace skiagm { 18 class TextBlobUseAfterGpuFree : public GpuGM { 19 public: TextBlobUseAfterGpuFree()20 TextBlobUseAfterGpuFree() { } 21 22 protected: onShortName()23 SkString onShortName() override { 24 return SkString("textblobuseaftergpufree"); 25 } 26 onISize()27 SkISize onISize() override { 28 return SkISize::Make(kWidth, kHeight); 29 } 30 onDraw(GrContext * context,GrRenderTargetContext *,SkCanvas * canvas)31 void onDraw(GrContext* context, GrRenderTargetContext*, SkCanvas* canvas) override { 32 const char text[] = "Hamburgefons"; 33 34 SkFont font(sk_tool_utils::create_portable_typeface(), 20); 35 auto blob = SkTextBlob::MakeFromText(text, strlen(text), font); 36 37 // draw textblob 38 SkRect rect = SkRect::MakeLTRB(0.f, 0.f, SkIntToScalar(kWidth), kHeight / 2.f); 39 SkPaint rectPaint; 40 rectPaint.setColor(0xffffffff); 41 canvas->drawRect(rect, rectPaint); 42 canvas->drawTextBlob(blob, 20, 60, SkPaint()); 43 44 // This text should look fine 45 context->freeGpuResources(); 46 canvas->drawTextBlob(blob, 20, 160, SkPaint()); 47 } 48 49 private: 50 static constexpr int kWidth = 200; 51 static constexpr int kHeight = 200; 52 53 typedef GM INHERITED; 54 }; 55 56 ////////////////////////////////////////////////////////////////////////////// 57 58 DEF_GM(return new TextBlobUseAfterGpuFree;) 59 } 60