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/ganesh/GrDirectContext.h" 19 #include "tools/ToolUtils.h" 20 #include "tools/fonts/FontToolUtils.h" 21 22 #include <string.h> 23 24 // This tests that we correctly regenerate textblobs after freeing all gpu resources crbug/491350 25 namespace skiagm { 26 class TextBlobUseAfterGpuFree : public GM { 27 public: TextBlobUseAfterGpuFree()28 TextBlobUseAfterGpuFree() { } 29 30 protected: getName() const31 SkString getName() const override { return SkString("textblobuseaftergpufree"); } 32 getISize()33 SkISize getISize() override { return SkISize::Make(kWidth, kHeight); } 34 onDraw(SkCanvas * canvas)35 void onDraw(SkCanvas* canvas) override { 36 auto dContext = GrAsDirectContext(canvas->recordingContext()); 37 38 const char text[] = "Hamburgefons"; 39 40 SkFont font(ToolUtils::DefaultPortableTypeface(), 20); 41 auto blob = SkTextBlob::MakeFromText(text, strlen(text), font); 42 43 // draw textblob 44 SkRect rect = SkRect::MakeLTRB(0.f, 0.f, SkIntToScalar(kWidth), kHeight / 2.f); 45 SkPaint rectPaint; 46 rectPaint.setColor(0xffffffff); 47 canvas->drawRect(rect, rectPaint); 48 canvas->drawTextBlob(blob, 20, 60, SkPaint()); 49 50 // This text should look fine 51 if (dContext) { 52 dContext->freeGpuResources(); 53 } 54 canvas->drawTextBlob(blob, 20, 160, SkPaint()); 55 } 56 57 private: 58 inline static constexpr int kWidth = 200; 59 inline static constexpr int kHeight = 200; 60 61 using INHERITED = GM; 62 }; 63 64 ////////////////////////////////////////////////////////////////////////////// 65 66 DEF_GM(return new TextBlobUseAfterGpuFree;) 67 } // namespace skiagm 68