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/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkTypes.h"
#if SK_SUPPORT_GPU
#include "GrContext.h"
#include "GrPath.h"
#include "GrShape.h"
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkColor.h"
#include "SkPaint.h"
#include "SkPath.h"
#include "SkDashPathEffect.h"
#include "SkRRect.h"
#include "SkRect.h"
#include "SkSurface.h"
#include "Test.h"
#include <initializer_list>
static void test_drawPathEmpty(skiatest::Reporter*, SkCanvas* canvas) {
// Filling an empty path should not crash.
SkPaint paint;
SkRect emptyRect = SkRect::MakeEmpty();
canvas->drawRect(emptyRect, paint);
canvas->drawPath(SkPath(), paint);
canvas->drawOval(emptyRect, paint);
canvas->drawRect(emptyRect, paint);
canvas->drawRRect(SkRRect::MakeRect(emptyRect), paint);
// Stroking an empty path should not crash.
paint.setAntiAlias(true);
paint.setStyle(SkPaint::kStroke_Style);
paint.setColor(SK_ColorGRAY);
paint.setStrokeWidth(SkIntToScalar(20));
paint.setStrokeJoin(SkPaint::kRound_Join);
canvas->drawRect(emptyRect, paint);
canvas->drawPath(SkPath(), paint);
canvas->drawOval(emptyRect, paint);
canvas->drawRect(emptyRect, paint);
canvas->drawRRect(SkRRect::MakeRect(emptyRect), paint);
}
static void fill_and_stroke(SkCanvas* canvas, const SkPath& p1, const SkPath& p2,
sk_sp<SkPathEffect> effect) {
SkPaint paint;
paint.setAntiAlias(true);
paint.setPathEffect(effect);
canvas->drawPath(p1, paint);
canvas->drawPath(p2, paint);
paint.setStyle(SkPaint::kStroke_Style);
canvas->drawPath(p1, paint);
canvas->drawPath(p2, paint);
}
static void test_drawSameRectOvals(skiatest::Reporter*, SkCanvas* canvas) {
// Drawing ovals with similar bounds but different points order should not crash.
SkPath oval1, oval2;
const SkRect rect = SkRect::MakeWH(100, 50);
oval1.addOval(rect, SkPath::kCW_Direction);
oval2.addOval(rect, SkPath::kCCW_Direction);
fill_and_stroke(canvas, oval1, oval2, nullptr);
const SkScalar intervals[] = { 1, 1 };
fill_and_stroke(canvas, oval1, oval2, SkDashPathEffect::Make(intervals, 2, 0));
}
DEF_GPUTEST_FOR_ALL_GL_CONTEXTS(GpuDrawPath, reporter, ctxInfo) {
for (auto& test_func : { &test_drawPathEmpty, &test_drawSameRectOvals }) {
for (auto& sampleCount : {0, 4, 16}) {
SkImageInfo info = SkImageInfo::MakeN32Premul(255, 255);
auto surface(
SkSurface::MakeRenderTarget(ctxInfo.grContext(), SkBudgeted::kNo, info,
sampleCount, nullptr));
if (!surface) {
continue;
}
test_func(reporter, surface->getCanvas());
}
}
}
DEF_GPUTEST(GrPathKeys, reporter, /*factory*/) {
SkPaint strokePaint;
strokePaint.setStyle(SkPaint::kStroke_Style);
strokePaint.setStrokeWidth(10.f);
GrStyle styles[] = {
GrStyle::SimpleFill(),
GrStyle::SimpleHairline(),
GrStyle(strokePaint)
};
for (const GrStyle& style : styles) {
// Keys should not ignore conic weights.
SkPath path1, path2;
SkPoint p0 = SkPoint::Make(100, 0);
SkPoint p1 = SkPoint::Make(100, 100);
path1.conicTo(p0, p1, .5f);
path2.conicTo(p0, p1, .7f);
GrUniqueKey key1, key2;
// We expect these small paths to be keyed based on their data.
bool isVolatile;
GrPath::ComputeKey(GrShape(path1, GrStyle::SimpleFill()), &key1, &isVolatile);
REPORTER_ASSERT(reporter, !isVolatile);
REPORTER_ASSERT(reporter, key1.isValid());
GrPath::ComputeKey(GrShape(path2, GrStyle::SimpleFill()), &key2, &isVolatile);
REPORTER_ASSERT(reporter, !isVolatile);
REPORTER_ASSERT(reporter, key1.isValid());
REPORTER_ASSERT(reporter, key1 != key2);
{
GrUniqueKey tempKey;
path1.setIsVolatile(true);
GrPath::ComputeKey(GrShape(path1, style), &key1, &isVolatile);
REPORTER_ASSERT(reporter, isVolatile);
REPORTER_ASSERT(reporter, !tempKey.isValid());
}
// Ensure that recreating the GrShape doesn't change the key.
{
GrUniqueKey tempKey;
GrPath::ComputeKey(GrShape(path2, GrStyle::SimpleFill()), &tempKey, &isVolatile);
REPORTER_ASSERT(reporter, key2 == tempKey);
}
// Try a large path that is too big to be keyed off its data.
SkPath path3;
SkPath path4;
for (int i = 0; i < 1000; ++i) {
SkScalar s = SkIntToScalar(i);
path3.conicTo(s, 3.f * s / 4, s + 1.f, s, 0.5f + s / 2000.f);
path4.conicTo(s, 3.f * s / 4, s + 1.f, s, 0.3f + s / 2000.f);
}
GrUniqueKey key3, key4;
// These aren't marked volatile and so should have keys
GrPath::ComputeKey(GrShape(path3, style), &key3, &isVolatile);
REPORTER_ASSERT(reporter, !isVolatile);
REPORTER_ASSERT(reporter, key3.isValid());
GrPath::ComputeKey(GrShape(path4, style), &key4, &isVolatile);
REPORTER_ASSERT(reporter, !isVolatile);
REPORTER_ASSERT(reporter, key4.isValid());
REPORTER_ASSERT(reporter, key3 != key4);
{
GrUniqueKey tempKey;
path3.setIsVolatile(true);
GrPath::ComputeKey(GrShape(path3, style), &key1, &isVolatile);
REPORTER_ASSERT(reporter, isVolatile);
REPORTER_ASSERT(reporter, !tempKey.isValid());
}
}
}
#endif
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