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agl@chromium.org8cfdf012010-12-06 18:52:40 +00001/*
epoger@google.comfd03db02011-07-28 14:24:55 +00002 * Copyright 2010 Google Inc.
agl@chromium.org8cfdf012010-12-06 18:52:40 +00003 *
epoger@google.comfd03db02011-07-28 14:24:55 +00004 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
agl@chromium.org8cfdf012010-12-06 18:52:40 +00006 */
7
Mike Kleinc0bd9f92019-04-23 12:05:21 -05008#include "include/core/SkPath.h"
9#include "include/core/SkRegion.h"
10#include "src/core/SkBlitter.h"
11#include "src/core/SkScan.h"
12#include "tests/Test.h"
agl@chromium.org8cfdf012010-12-06 18:52:40 +000013
agl@chromium.org8cfdf012010-12-06 18:52:40 +000014struct FakeBlitter : public SkBlitter {
herb7df9e4a2016-06-10 13:01:27 -070015 FakeBlitter()
16 : m_blitCount(0) { }
agl@chromium.org8cfdf012010-12-06 18:52:40 +000017
herb7df9e4a2016-06-10 13:01:27 -070018 void blitH(int x, int y, int width) override {
19 m_blitCount++;
20 }
agl@chromium.org8cfdf012010-12-06 18:52:40 +000021
herb7df9e4a2016-06-10 13:01:27 -070022 void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]) override {
23 SkDEBUGFAIL("blitAntiH not implemented");
24 }
25
26 int m_blitCount;
agl@chromium.org8cfdf012010-12-06 18:52:40 +000027};
28
agl@chromium.org8cfdf012010-12-06 18:52:40 +000029// http://code.google.com/p/skia/issues/detail?id=87
rmistry@google.comd6176b02012-08-23 18:14:13 +000030// Lines which is not clipped by boundary based clipping,
agl@chromium.org8cfdf012010-12-06 18:52:40 +000031// but skipped after tessellation, should be cleared by the blitter.
tfarina@chromium.orge4fafb12013-12-12 21:11:12 +000032DEF_TEST(FillPathInverse, reporter) {
herb7df9e4a2016-06-10 13:01:27 -070033 FakeBlitter blitter;
34 SkIRect clip;
35 SkPath path;
36 int height = 100;
37 int width = 200;
38 int expected_lines = 5;
Mike Reed92b33352019-08-24 19:39:13 -040039 clip.setLTRB(0, height - expected_lines, width, height);
Mike Reedb6317422018-08-15 10:23:39 -040040 path.moveTo(0.0f, 0.0f)
41 .quadTo(SkIntToScalar(width/2), SkIntToScalar(height),
42 SkIntToScalar(width), 0.0f)
43 .close()
Mike Reed7d34dc72019-11-26 12:17:17 -050044 .setFillType(SkPathFillType::kInverseWinding);
Mike Klein71f12662020-10-28 09:07:09 -050045 SkScan::FillPath(path, clip, &blitter);
agl@chromium.org8cfdf012010-12-06 18:52:40 +000046
herb7df9e4a2016-06-10 13:01:27 -070047 REPORTER_ASSERT(reporter, blitter.m_blitCount == expected_lines);
agl@chromium.org8cfdf012010-12-06 18:52:40 +000048}