1 /*
2 * Copyright 2016 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 "SkFlattenable.h"
9 #include "SkReadBuffer.h"
10 #include "SkWriteBuffer.h"
11 #include "Test.h"
12
13 class IntFlattenable : public SkFlattenable {
14 public:
IntFlattenable(uint32_t a,uint32_t b,uint32_t c,uint32_t d)15 IntFlattenable(uint32_t a, uint32_t b, uint32_t c, uint32_t d)
16 : fA(a)
17 , fB(b)
18 , fC(c)
19 , fD(d)
20 {}
21
flatten(SkWriteBuffer & buffer) const22 void flatten(SkWriteBuffer& buffer) const override {
23 buffer.writeUInt(fA);
24 buffer.writeUInt(fB);
25 buffer.writeUInt(fC);
26 buffer.writeUInt(fD);
27 }
28
getFactory() const29 Factory getFactory() const override { return nullptr; }
30
a() const31 uint32_t a() const { return fA; }
b() const32 uint32_t b() const { return fB; }
c() const33 uint32_t c() const { return fC; }
d() const34 uint32_t d() const { return fD; }
35
getTypeName() const36 const char* getTypeName() const override { return "IntFlattenable"; }
37
38 private:
39 uint32_t fA;
40 uint32_t fB;
41 uint32_t fC;
42 uint32_t fD;
43 };
44
custom_create_proc(SkReadBuffer & buffer)45 static sk_sp<SkFlattenable> custom_create_proc(SkReadBuffer& buffer) {
46 uint32_t a = buffer.readUInt();
47 uint32_t b = buffer.readUInt();
48 uint32_t c = buffer.readUInt();
49 uint32_t d = buffer.readUInt();
50 return sk_sp<SkFlattenable>(new IntFlattenable(a + 1, b + 1, c + 1, d + 1));
51 }
52
DEF_TEST(UnflattenWithCustomFactory,r)53 DEF_TEST(UnflattenWithCustomFactory, r) {
54 // Create and flatten the test flattenable
55 SkBinaryWriteBuffer writeBuffer;
56 sk_sp<SkFlattenable> flattenable1(new IntFlattenable(1, 2, 3, 4));
57 writeBuffer.writeFlattenable(flattenable1.get());
58 sk_sp<SkFlattenable> flattenable2(new IntFlattenable(2, 3, 4, 5));
59 writeBuffer.writeFlattenable(flattenable2.get());
60 sk_sp<SkFlattenable> flattenable3(new IntFlattenable(3, 4, 5, 6));
61 writeBuffer.writeFlattenable(flattenable3.get());
62
63 // Copy the contents of the write buffer into a read buffer
64 sk_sp<SkData> data = SkData::MakeUninitialized(writeBuffer.bytesWritten());
65 writeBuffer.writeToMemory(data->writable_data());
66 SkReadBuffer readBuffer(data->data(), data->size());
67
68 // Register a custom factory with the read buffer
69 readBuffer.setCustomFactory(SkString("IntFlattenable"), &custom_create_proc);
70
71 // Unflatten and verify the flattenables
72 sk_sp<IntFlattenable> out1((IntFlattenable*) readBuffer.readFlattenable(
73 SkFlattenable::kSkUnused_Type));
74 REPORTER_ASSERT(r, out1);
75 REPORTER_ASSERT(r, 2 == out1->a());
76 REPORTER_ASSERT(r, 3 == out1->b());
77 REPORTER_ASSERT(r, 4 == out1->c());
78 REPORTER_ASSERT(r, 5 == out1->d());
79
80 sk_sp<IntFlattenable> out2((IntFlattenable*) readBuffer.readFlattenable(
81 SkFlattenable::kSkUnused_Type));
82 REPORTER_ASSERT(r, out2);
83 REPORTER_ASSERT(r, 3 == out2->a());
84 REPORTER_ASSERT(r, 4 == out2->b());
85 REPORTER_ASSERT(r, 5 == out2->c());
86 REPORTER_ASSERT(r, 6 == out2->d());
87
88 sk_sp<IntFlattenable> out3((IntFlattenable*) readBuffer.readFlattenable(
89 SkFlattenable::kSkUnused_Type));
90 REPORTER_ASSERT(r, out3);
91 REPORTER_ASSERT(r, 4 == out3->a());
92 REPORTER_ASSERT(r, 5 == out3->b());
93 REPORTER_ASSERT(r, 6 == out3->c());
94 REPORTER_ASSERT(r, 7 == out3->d());
95 }
96