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/gm.h" 9 #include "include/core/SkCanvas.h" 10 #include "include/core/SkFont.h" 11 #include "include/core/SkPaint.h" 12 #include "include/core/SkRect.h" 13 #include "include/core/SkScalar.h" 14 #include "include/core/SkSize.h" 15 #include "include/core/SkString.h" 16 #include "include/core/SkTextBlob.h" 17 #include "include/core/SkTypeface.h" 18 #include "include/gpu/GrContext.h" 19 #include "tools/ToolUtils.h" 20 21 #include <string.h> 22 23 class GrRenderTargetContext; 24 25 // This tests that we correctly regenerate textblobs after freeing all gpu resources crbug/491350 26 namespace skiagm { 27 class TextBlobUseAfterGpuFree : public GpuGM { 28 public: TextBlobUseAfterGpuFree()29 TextBlobUseAfterGpuFree() { } 30 31 protected: onShortName()32 SkString onShortName() override { 33 return SkString("textblobuseaftergpufree"); 34 } 35 onISize()36 SkISize onISize() override { 37 return SkISize::Make(kWidth, kHeight); 38 } 39 onDraw(GrContext * context,GrRenderTargetContext *,SkCanvas * canvas)40 void onDraw(GrContext* context, GrRenderTargetContext*, SkCanvas* canvas) override { 41 const char text[] = "Hamburgefons"; 42 43 SkFont font(ToolUtils::create_portable_typeface(), 20); 44 auto blob = SkTextBlob::MakeFromText(text, strlen(text), font); 45 46 // draw textblob 47 SkRect rect = SkRect::MakeLTRB(0.f, 0.f, SkIntToScalar(kWidth), kHeight / 2.f); 48 SkPaint rectPaint; 49 rectPaint.setColor(0xffffffff); 50 canvas->drawRect(rect, rectPaint); 51 canvas->drawTextBlob(blob, 20, 60, SkPaint()); 52 53 // This text should look fine 54 context->freeGpuResources(); 55 canvas->drawTextBlob(blob, 20, 160, SkPaint()); 56 } 57 58 private: 59 static constexpr int kWidth = 200; 60 static constexpr int kHeight = 200; 61 62 typedef GM INHERITED; 63 }; 64 65 ////////////////////////////////////////////////////////////////////////////// 66 67 DEF_GM(return new TextBlobUseAfterGpuFree;) 68 } 69