You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
149 lines
4.4 KiB
149 lines
4.4 KiB
/*
|
|
* Copyright 2014 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
// This test only works with the GPU backend.
|
|
|
|
#include "gm/gm.h"
|
|
#include "include/core/SkBlendMode.h"
|
|
#include "include/core/SkCanvas.h"
|
|
#include "include/core/SkMatrix.h"
|
|
#include "include/core/SkPaint.h"
|
|
#include "include/core/SkPath.h"
|
|
#include "include/core/SkPoint.h"
|
|
#include "include/core/SkRect.h"
|
|
#include "include/core/SkScalar.h"
|
|
#include "include/core/SkSize.h"
|
|
#include "include/core/SkString.h"
|
|
#include "include/private/GrSharedEnums.h"
|
|
#include "include/private/GrTypesPriv.h"
|
|
#include "src/core/SkTLList.h"
|
|
#include "src/gpu/GrFragmentProcessor.h"
|
|
#include "src/gpu/GrPaint.h"
|
|
#include "src/gpu/GrSurfaceDrawContext.h"
|
|
#include "src/gpu/effects/GrConvexPolyEffect.h"
|
|
#include "tools/gpu/TestOps.h"
|
|
|
|
#include <memory>
|
|
#include <utility>
|
|
|
|
class GrAppliedClip;
|
|
|
|
namespace skiagm {
|
|
|
|
/**
|
|
* This GM directly exercises a GrProcessor that draws convex polygons.
|
|
*/
|
|
class ConvexPolyEffect : public GpuGM {
|
|
public:
|
|
ConvexPolyEffect() {
|
|
this->setBGColor(0xFFFFFFFF);
|
|
}
|
|
|
|
protected:
|
|
SkString onShortName() override {
|
|
return SkString("convex_poly_effect");
|
|
}
|
|
|
|
SkISize onISize() override { return SkISize::Make(720, 550); }
|
|
|
|
void onOnceBeforeDraw() override {
|
|
SkPath tri;
|
|
tri.moveTo(5.f, 5.f);
|
|
tri.lineTo(100.f, 20.f);
|
|
tri.lineTo(15.f, 100.f);
|
|
|
|
fPaths.addToTail(tri);
|
|
fPaths.addToTail(SkPath())->reverseAddPath(tri);
|
|
|
|
tri.close();
|
|
fPaths.addToTail(tri);
|
|
|
|
SkPath ngon;
|
|
constexpr SkScalar kRadius = 50.f;
|
|
const SkPoint center = { kRadius, kRadius };
|
|
for (int i = 0; i < GrConvexPolyEffect::kMaxEdges; ++i) {
|
|
SkScalar angle = 2 * SK_ScalarPI * i / GrConvexPolyEffect::kMaxEdges;
|
|
SkPoint point = { SkScalarCos(angle), SkScalarSin(angle) };
|
|
point.scale(kRadius);
|
|
point = center + point;
|
|
if (0 == i) {
|
|
ngon.moveTo(point);
|
|
} else {
|
|
ngon.lineTo(point);
|
|
}
|
|
}
|
|
|
|
fPaths.addToTail(ngon);
|
|
SkMatrix scaleM;
|
|
scaleM.setScale(1.1f, 0.4f);
|
|
ngon.transform(scaleM);
|
|
fPaths.addToTail(ngon);
|
|
|
|
SkPath linePath;
|
|
linePath.moveTo(5.f, 5.f);
|
|
linePath.lineTo(6.f, 6.f);
|
|
fPaths.addToTail(linePath);
|
|
}
|
|
|
|
void onDraw(GrRecordingContext* context, GrSurfaceDrawContext* surfaceDrawContext,
|
|
SkCanvas* canvas) override {
|
|
SkScalar y = 0;
|
|
static constexpr SkScalar kDX = 12.f;
|
|
static constexpr SkScalar kOutset = 5.f;
|
|
|
|
for (PathList::Iter iter(fPaths, PathList::Iter::kHead_IterStart);
|
|
iter.get();
|
|
iter.next()) {
|
|
const SkPath* path = iter.get();
|
|
SkScalar x = 0;
|
|
|
|
for (int et = 0; et < kGrClipEdgeTypeCnt; ++et) {
|
|
const SkMatrix m = SkMatrix::Translate(x, y);
|
|
SkPath p;
|
|
path->transform(m, &p);
|
|
|
|
GrClipEdgeType edgeType = (GrClipEdgeType) et;
|
|
auto [success, fp] = GrConvexPolyEffect::Make(/*inputFP=*/nullptr, edgeType, p);
|
|
if (!success) {
|
|
continue;
|
|
}
|
|
|
|
GrPaint grPaint;
|
|
grPaint.setColor4f({ 0, 0, 0, 1.f });
|
|
grPaint.setXPFactory(GrPorterDuffXPFactory::Get(SkBlendMode::kSrc));
|
|
grPaint.setCoverageFragmentProcessor(std::move(fp));
|
|
auto rect = p.getBounds().makeOutset(kOutset, kOutset);
|
|
auto op = sk_gpu_test::test_ops::MakeRect(context, std::move(grPaint), rect);
|
|
surfaceDrawContext->addDrawOp(std::move(op));
|
|
|
|
x += SkScalarCeilToScalar(path->getBounds().width() + kDX);
|
|
}
|
|
|
|
// Draw AA and non AA paths using normal API for reference.
|
|
canvas->save();
|
|
canvas->translate(x, y);
|
|
SkPaint paint;
|
|
canvas->drawPath(*path, paint);
|
|
canvas->translate(path->getBounds().width() + 10.f, 0);
|
|
paint.setAntiAlias(true);
|
|
canvas->drawPath(*path, paint);
|
|
canvas->restore();
|
|
|
|
y += SkScalarCeilToScalar(path->getBounds().height() + 20.f);
|
|
}
|
|
}
|
|
|
|
private:
|
|
typedef SkTLList<SkPath, 1> PathList;
|
|
PathList fPaths;
|
|
|
|
using INHERITED = GM;
|
|
};
|
|
|
|
DEF_GM(return new ConvexPolyEffect;)
|
|
} // namespace skiagm
|