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- /*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "gm/gm.h"
- #include "include/core/SkCanvas.h"
- #include "include/core/SkMatrix.h"
- #include "include/core/SkPaint.h"
- #include "include/core/SkPath.h"
- #include "include/core/SkRect.h"
- #include "include/core/SkScalar.h"
- #include "include/core/SkSize.h"
- #include "include/core/SkString.h"
- #include "include/gpu/GrContextOptions.h"
- #include "include/private/GrTypesPriv.h"
- #include "include/private/SkTArray.h"
- /** This tests the GPU backend's caching of path coverage masks */
- class PathMaskCache : public skiagm::GM {
- public:
- PathMaskCache() {}
- protected:
- SkString onShortName() override { return SkString("path_mask_cache"); }
- SkISize onISize() override {
- return SkISize::Make(650, 950);
- }
- void onDraw(SkCanvas* canvas) override {
- static constexpr SkScalar kPad = 5.f;
- SkPaint paint;
- paint.setAntiAlias(true);
- auto drawPathSet = [canvas] (const SkPath& path, const SkMatrix& m) {
- SkPaint paint;
- paint.setAntiAlias(true);
- SkRect bounds = path.getBounds();
- m.mapRect(&bounds);
- bounds.roundOut();
- canvas->save();
- canvas->translate(-bounds.fLeft, -bounds.fTop);
- canvas->save();
- canvas->concat(m);
- canvas->drawPath(path, paint);
- canvas->restore();
- // translate by integer
- canvas->translate(bounds.width() + kPad, 0.f);
- canvas->save();
- canvas->concat(m);
- canvas->drawPath(path, paint);
- canvas->restore();
- // translate by non-integer
- canvas->translate(bounds.width() + kPad + 0.15f, 0.f);
- canvas->save();
- canvas->concat(m);
- canvas->drawPath(path, paint);
- canvas->restore();
- // translate again so total translate fraction is almost identical to previous.
- canvas->translate(bounds.width() + kPad + 0.002f, 0.f);
- canvas->save();
- canvas->concat(m);
- canvas->drawPath(path, paint);
- canvas->restore();
- canvas->restore();
- return bounds.fBottom + kPad;
- };
- SkTArray<SkPath> paths;
- paths.push_back();
- paths.back().moveTo(0.f, 0.f);
- paths.back().lineTo(98.f, 100.f);
- paths.back().lineTo(100.f, 100.f);
- paths.back().conicTo(150.f, 50.f, 100.f, 0.f, 0.6f);
- paths.back().conicTo(148.f, 50.f, 100.f, 100.f, 0.6f);
- paths.back().conicTo(50.f, 30.f, 0.f, 100.f, 0.9f);
- paths.push_back();
- paths.back().addCircle(30.f, 30.f, 30.f);
- paths.back().addRect(SkRect::MakeXYWH(45.f, 45.f, 50.f, 60.f));
- paths.back().setFillType(SkPath::kEvenOdd_FillType);
- canvas->translate(kPad, kPad);
- for (const SkPath& path : paths) {
- SkScalar ty = drawPathSet(path, SkMatrix::I());
- canvas->translate(0, ty);
- // Non-uniform scale.
- SkMatrix s;
- s.setScale(0.5f, 2.f);
- ty = drawPathSet(path, s);
- canvas->translate(0.f, ty);
- // Rotation
- SkMatrix r;
- r.setRotate(60.f, path.getBounds().centerX(), path.getBounds().centerY());
- ty = drawPathSet(path, r);
- canvas->translate(0.f, ty);
- }
- }
- void modifyGrContextOptions(GrContextOptions* options) override {
- options->fGpuPathRenderers = GpuPathRenderers::kNone;
- options->fAllowPathMaskCaching = true;
- }
- private:
- typedef GM INHERITED;
- };
- DEF_GM( return new PathMaskCache(); )
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