blob: 310aa3b2fec870017db08d4dd065d2bdc83e7e75 [file] [log] [blame]
commit-bot@chromium.org6573ce72014-04-10 20:42:53 +00001/*
2 * Copyright 2014 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#include "SkDeque.h"
9#include "SkLayerRasterizer.h"
10#include "SkPaint.h"
11#include "SkRasterizer.h"
12#include "Test.h"
13
14class SkReadBuffer;
15
16// Dummy class to place on a paint just to ensure the paint's destructor
17// is called.
18// ONLY to be used by LayerRasterizer_destructor, since other tests may
19// be run in a separate thread, and this class is not threadsafe.
20class DummyRasterizer : public SkRasterizer {
21public:
22 DummyRasterizer()
23 : INHERITED()
24 {
25 // Not threadsafe. Only used in one thread.
26 gCount++;
27 }
28
Brian Salomond3b65972017-03-22 12:05:03 -040029 ~DummyRasterizer() override {
commit-bot@chromium.org6573ce72014-04-10 20:42:53 +000030 // Not threadsafe. Only used in one thread.
31 gCount--;
32 }
33
34 static int GetCount() { return gCount; }
35
Mike Kleinfc6c37b2016-09-27 09:34:10 -040036 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(DummyRasterizer)
commit-bot@chromium.org6573ce72014-04-10 20:42:53 +000037
38private:
commit-bot@chromium.org6573ce72014-04-10 20:42:53 +000039 static int gCount;
40
41 typedef SkRasterizer INHERITED;
42};
43
44int DummyRasterizer::gCount;
45
reed60c9b582016-04-03 09:11:13 -070046sk_sp<SkFlattenable> DummyRasterizer::CreateProc(SkReadBuffer&) {
47 return sk_make_sp<DummyRasterizer>();
48}
mtklein7e44bb12015-01-07 09:06:08 -080049
commit-bot@chromium.org6573ce72014-04-10 20:42:53 +000050// Check to make sure that the SkPaint in the layer has its destructor called.
51DEF_TEST(LayerRasterizer_destructor, reporter) {
52 {
53 SkPaint paint;
reed7b380d02016-03-21 13:25:16 -070054 paint.setRasterizer(sk_make_sp<DummyRasterizer>());
commit-bot@chromium.org6573ce72014-04-10 20:42:53 +000055 REPORTER_ASSERT(reporter, DummyRasterizer::GetCount() == 1);
56
57 SkLayerRasterizer::Builder builder;
58 builder.addLayer(paint);
59 }
60 REPORTER_ASSERT(reporter, DummyRasterizer::GetCount() == 0);
61}
62
63class LayerRasterizerTester {
64public:
65 static int CountLayers(const SkLayerRasterizer& layerRasterizer) {
66 return layerRasterizer.fLayers->count();
67 }
68
69 static const SkDeque& GetLayers(const SkLayerRasterizer& layerRasterizer) {
70 return *layerRasterizer.fLayers;
71 }
72};
73
74// MUST stay in sync with definition of SkLayerRasterizer_Rec in SkLayerRasterizer.cpp.
75struct SkLayerRasterizer_Rec {
76 SkPaint fPaint;
77 SkVector fOffset;
78};
79
80static bool equals(const SkLayerRasterizer_Rec& rec1, const SkLayerRasterizer_Rec& rec2) {
81 return rec1.fPaint == rec2.fPaint && rec1.fOffset == rec2.fOffset;
82}
83
84DEF_TEST(LayerRasterizer_copy, reporter) {
85 SkLayerRasterizer::Builder builder;
reed7b380d02016-03-21 13:25:16 -070086 REPORTER_ASSERT(reporter, nullptr == builder.snapshot());
commit-bot@chromium.org6573ce72014-04-10 20:42:53 +000087 SkPaint paint;
88 // Create a bunch of paints with different flags.
89 for (uint32_t flags = 0x01; flags < SkPaint::kAllFlags; flags <<= 1) {
90 paint.setFlags(flags);
commit-bot@chromium.org55c9b4e2014-04-10 21:09:33 +000091 builder.addLayer(paint, static_cast<SkScalar>(flags), static_cast<SkScalar>(flags));
commit-bot@chromium.org6573ce72014-04-10 20:42:53 +000092 }
93
94 // Create a layer rasterizer with all the existing layers.
reed7b380d02016-03-21 13:25:16 -070095 sk_sp<SkLayerRasterizer> firstCopy(builder.snapshot());
commit-bot@chromium.org6573ce72014-04-10 20:42:53 +000096
97 // Add one more layer.
98 paint.setFlags(SkPaint::kAllFlags);
99 builder.addLayer(paint);
100
reed7b380d02016-03-21 13:25:16 -0700101 sk_sp<SkLayerRasterizer> oneLarger(builder.snapshot());
102 sk_sp<SkLayerRasterizer> detached(builder.detach());
commit-bot@chromium.org6573ce72014-04-10 20:42:53 +0000103
104 // Check the counts for consistency.
105 const int largerCount = LayerRasterizerTester::CountLayers(*oneLarger.get());
106 const int smallerCount = LayerRasterizerTester::CountLayers(*firstCopy.get());
107 REPORTER_ASSERT(reporter, largerCount == LayerRasterizerTester::CountLayers(*detached.get()));
108 REPORTER_ASSERT(reporter, smallerCount == largerCount - 1);
109
halcanary96fcdcc2015-08-27 07:41:13 -0700110 const SkLayerRasterizer_Rec* recFirstCopy = nullptr;
111 const SkLayerRasterizer_Rec* recOneLarger = nullptr;
112 const SkLayerRasterizer_Rec* recDetached = nullptr;
commit-bot@chromium.org6573ce72014-04-10 20:42:53 +0000113
114 const SkDeque& layersFirstCopy = LayerRasterizerTester::GetLayers(*firstCopy.get());
115 const SkDeque& layersOneLarger = LayerRasterizerTester::GetLayers(*oneLarger.get());
116 const SkDeque& layersDetached = LayerRasterizerTester::GetLayers(*detached.get());
117
118 // Ensure that our version of SkLayerRasterizer_Rec is the same as the one in
119 // SkLayerRasterizer.cpp - or at least the same size. If the order were switched, we
120 // would fail the test elsewhere.
121 REPORTER_ASSERT(reporter, layersFirstCopy.elemSize() == sizeof(SkLayerRasterizer_Rec));
122 REPORTER_ASSERT(reporter, layersOneLarger.elemSize() == sizeof(SkLayerRasterizer_Rec));
123 REPORTER_ASSERT(reporter, layersDetached.elemSize() == sizeof(SkLayerRasterizer_Rec));
124
125 SkDeque::F2BIter iterFirstCopy(layersFirstCopy);
126 SkDeque::F2BIter iterOneLarger(layersOneLarger);
127 SkDeque::F2BIter iterDetached(layersDetached);
128
129 for (int i = 0; i < largerCount; ++i) {
130 recFirstCopy = static_cast<const SkLayerRasterizer_Rec*>(iterFirstCopy.next());
131 recOneLarger = static_cast<const SkLayerRasterizer_Rec*>(iterOneLarger.next());
132 recDetached = static_cast<const SkLayerRasterizer_Rec*>(iterDetached.next());
133
134 REPORTER_ASSERT(reporter, equals(*recOneLarger, *recDetached));
135 if (smallerCount == i) {
halcanary96fcdcc2015-08-27 07:41:13 -0700136 REPORTER_ASSERT(reporter, recFirstCopy == nullptr);
commit-bot@chromium.org6573ce72014-04-10 20:42:53 +0000137 } else {
138 REPORTER_ASSERT(reporter, equals(*recFirstCopy, *recOneLarger));
139 }
140 }
141}
scroggo65044bf2014-06-03 13:12:51 -0700142
143DEF_TEST(LayerRasterizer_detachEmpty, reporter) {
144 SkLayerRasterizer::Builder builder;
reed7b380d02016-03-21 13:25:16 -0700145 REPORTER_ASSERT(reporter, nullptr == builder.detach());
scroggo65044bf2014-06-03 13:12:51 -0700146}