84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
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/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "gm.h"
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#include "SkBlurMask.h"
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#include "SkBlurMaskFilter.h"
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#include "SkCanvas.h"
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#include "SkTextBlob.h"
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#define WIDTH 800
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#define HEIGHT 800
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static void draw_text(SkCanvas* canvas, sk_sp<SkTextBlob> blob,
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const SkPaint& paint, const SkPaint& blurPaint,
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const SkPaint& clearPaint) {
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canvas->save();
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canvas->clipRect(SkRect::MakeLTRB(0, 0, 1081, 665));
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canvas->drawRect(SkRect::MakeLTRB(0, 0, 1081, 665), clearPaint);
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// draw as blurred to push glyph to be too large for atlas
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canvas->drawTextBlob(blob, 0, 256, blurPaint);
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canvas->drawTextBlob(blob, 0, 477, paint);
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canvas->restore();
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}
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// This test ensures that glyphs that are too large for the atlas
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// are both translated and clipped correctly.
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class ClipErrorGM : public skiagm::GM {
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public:
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ClipErrorGM() {}
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protected:
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SkString onShortName() override { return SkString("cliperror"); }
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SkISize onISize() override { return SkISize::Make(WIDTH, HEIGHT); }
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void onDraw(SkCanvas* canvas) override {
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setStyle(SkPaint::kFill_Style);
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const char text[] = "hambur";
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sk_tool_utils::set_portable_typeface(&paint);
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paint.setTextSize(256);
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paint.setAntiAlias(true);
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// setup up maskfilter
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const SkScalar kSigma = SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(50));
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SkPaint blurPaint(paint);
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blurPaint.setMaskFilter(SkBlurMaskFilter::Make(kNormal_SkBlurStyle, kSigma));
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SkTextBlobBuilder builder;
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sk_tool_utils::add_to_text_blob(&builder, text, paint, 0, 0);
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sk_sp<SkTextBlob> blob(builder.make());
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SkPaint clearPaint(paint);
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clearPaint.setColor(SK_ColorWHITE);
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canvas->save();
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canvas->translate(0, 0);
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canvas->clipRect(SkRect::MakeLTRB(0, 0, WIDTH, 256));
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draw_text(canvas, blob, paint, blurPaint, clearPaint);
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canvas->restore();
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canvas->save();
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canvas->translate(0, 256);
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canvas->clipRect(SkRect::MakeLTRB(0, 256, WIDTH, 510));
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draw_text(canvas, blob, paint, blurPaint, clearPaint);
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canvas->restore();
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}
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private:
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typedef skiagm::GM INHERITED;
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};
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DEF_GM(return new ClipErrorGM;)
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