skia2/tests/FillPathTest.cpp
agl@chromium.org 8cfdf01ff9 Correctly handle SkPath::kInverseWinding_FillType
Fix for http://code.google.com/p/skia/issues/detail?id=87

Even when SkPath::kInverseWinding_FillType is given, Skia left some
lines not filled(cleared) in one case.

Patch-by: morrita

http://codereview.appspot.com/3443041

git-svn-id: http://skia.googlecode.com/svn/trunk@630 2bbb7eff-a529-9590-31e7-b0007b416f81
2010-12-06 18:52:40 +00:00

61 lines
1.7 KiB
C++

/*
* Copyright (C) 2010 The Chromium Authors. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "Test.h"
#include "SkRegion.h"
#include "SkPath.h"
#include "SkScan.h"
#include "SkBlitter.h"
namespace {
struct FakeBlitter : public SkBlitter {
FakeBlitter()
: m_blitCount(0)
{}
virtual void blitH(int x, int y, int width) {
m_blitCount++;
}
int m_blitCount;
};
}
// http://code.google.com/p/skia/issues/detail?id=87
// Lines which is not clipped by boundary based clipping,
// but skipped after tessellation, should be cleared by the blitter.
static void TestFillPathInverse(skiatest::Reporter* reporter) {
FakeBlitter blitter;
SkRegion clip;
SkPath path;
int height = 100;
int width = 200;
int expected_lines = 5;
clip.setRect(0, height - expected_lines, width, height);
path.moveTo(0.0, 0.0);
path.quadTo(width/2, height, width, 0.0);
path.close();
path.setFillType(SkPath::kInverseWinding_FillType);
SkScan::FillPath(path, clip, &blitter);
REPORTER_ASSERT(reporter, blitter.m_blitCount == expected_lines);
}
#include "TestClassDef.h"
DEFINE_TESTCLASS("FillPath", FillPathTestClass, TestFillPathInverse)