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/GrDirectContext.h" 19 #include "tools/ToolUtils.h" 20 21 #include <string.h> 22 23 // This tests that we correctly regenerate textblobs after freeing all gpu resources crbug/491350 24 namespace skiagm { 25 class TextBlobUseAfterGpuFree : public GM { 26 public: TextBlobUseAfterGpuFree()27 TextBlobUseAfterGpuFree() { } 28 29 protected: onShortName()30 SkString onShortName() override { 31 return SkString("textblobuseaftergpufree"); 32 } 33 onISize()34 SkISize onISize() override { 35 return SkISize::Make(kWidth, kHeight); 36 } 37 onDraw(SkCanvas * canvas)38 void onDraw(SkCanvas* canvas) override { 39 auto dContext = GrAsDirectContext(canvas->recordingContext()); 40 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 if (dContext) { 55 dContext->freeGpuResources(); 56 } 57 canvas->drawTextBlob(blob, 20, 160, SkPaint()); 58 } 59 60 private: 61 inline static constexpr int kWidth = 200; 62 inline static constexpr int kHeight = 200; 63 64 using INHERITED = GM; 65 }; 66 67 ////////////////////////////////////////////////////////////////////////////// 68 69 DEF_GM(return new TextBlobUseAfterGpuFree;) 70 } // namespace skiagm 71