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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BD-style license that can be
* found in the LICENSE file.
*/
#include "gm.h"
#include "sk_tool_utils.h"
#if SK_SUPPORT_GPU
#include "SkCanvas.h"
#include "SkSurface.h"
#include "SkTextBlob.h"
#include "GrContext.h"
// This tests that we correctly regenerate textblobs after freeing all gpu resources crbug/491350
namespace skiagm {
class TextBlobUseAfterGpuFree : public GM {
public:
TextBlobUseAfterGpuFree() { }
protected:
SkString onShortName() override {
return SkString("textblobuseaftergpufree");
}
SkISize onISize() override {
return SkISize::Make(kWidth, kHeight);
}
void onDraw(SkCanvas* canvas) override {
// This GM exists to test a specific feature of the GPU backend.
if (nullptr == canvas->getGrContext()) {
skiagm::GM::DrawGpuOnlyMessage(canvas);
return;
}
const char text[] = "Hamburgefons";
SkPaint paint;
sk_tool_utils::set_portable_typeface(&paint);
paint.setAntiAlias(true);
paint.setTextSize(20);
SkTextBlobBuilder builder;
sk_tool_utils::add_to_text_blob(&builder, text, paint, 10, 10);
sk_sp<SkTextBlob> blob(builder.make());
// draw textblob
SkRect rect = SkRect::MakeLTRB(0.f, 0.f, SkIntToScalar(kWidth), kHeight / 2.f);
SkPaint rectPaint;
rectPaint.setColor(0xffffffff);
canvas->drawRect(rect, rectPaint);
canvas->drawTextBlob(blob, 10, 50, paint);
// This text should look fine
canvas->getGrContext()->freeGpuResources();
canvas->drawTextBlob(blob, 10, 150, paint);
}
private:
static constexpr int kWidth = 200;
static constexpr int kHeight = 200;
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM(return new TextBlobUseAfterGpuFree;)
}
#endif
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