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 #if SK_SUPPORT_GPU 12 13 #include "SkCanvas.h" 14 #include "SkSurface.h" 15 #include "SkTextBlob.h" 16 #include "GrContext.h" 17 18 // This tests that we correctly regenerate textblobs after freeing all gpu resources crbug/491350 19 namespace skiagm { 20 class TextBlobUseAfterGpuFree : public GM { 21 public: 22 TextBlobUseAfterGpuFree() { } 23 24 protected: 25 SkString onShortName() override { 26 return SkString("textblobuseaftergpufree"); 27 } 28 29 SkISize onISize() override { 30 return SkISize::Make(kWidth, kHeight); 31 } 32 33 void onDraw(SkCanvas* canvas) override { 34 // This GM exists to test a specific feature of the GPU backend. 35 if (nullptr == canvas->getGrContext()) { 36 skiagm::GM::DrawGpuOnlyMessage(canvas); 37 return; 38 } 39 40 const char text[] = "Hamburgefons"; 41 42 SkPaint paint; 43 sk_tool_utils::set_portable_typeface(&paint); 44 paint.setAntiAlias(true); 45 paint.setTextSize(20); 46 47 SkTextBlobBuilder builder; 48 49 sk_tool_utils::add_to_text_blob(&builder, text, paint, 10, 10); 50 51 sk_sp<SkTextBlob> blob(builder.make()); 52 53 // draw textblob 54 SkRect rect = SkRect::MakeLTRB(0.f, 0.f, SkIntToScalar(kWidth), kHeight / 2.f); 55 SkPaint rectPaint; 56 rectPaint.setColor(0xffffffff); 57 canvas->drawRect(rect, rectPaint); 58 canvas->drawTextBlob(blob, 10, 50, paint); 59 60 // This text should look fine 61 canvas->getGrContext()->freeGpuResources(); 62 canvas->drawTextBlob(blob, 10, 150, paint); 63 } 64 65 private: 66 static constexpr int kWidth = 200; 67 static constexpr int kHeight = 200; 68 69 typedef GM INHERITED; 70 }; 71 72 ////////////////////////////////////////////////////////////////////////////// 73 74 DEF_GM(return new TextBlobUseAfterGpuFree;) 75 } 76 #endif 77
