blob: 5e174f1e6f47d7bc3dd37760b395cb6d1a63bbdf [file] [log] [blame]
/*
* 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/base/SkTArray.h"
#include "include/private/gpu/ganesh/GrTypesPriv.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(SkPathFillType::kEvenOdd);
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:
using INHERITED = GM;
};
DEF_GM( return new PathMaskCache(); )