1 /*
2 * Copyright (c) 2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "hm_symbol_run_fuzzer.h"
17 #include <cstddef>
18 #include "get_object.h"
19 #include "symbol_engine/hm_symbol_run.h"
20
21 namespace OHOS {
22 namespace Rosen {
23 namespace SPText {
DrawSymbolFuzzTest(const uint8_t * data,size_t size)24 bool DrawSymbolFuzzTest(const uint8_t* data, size_t size)
25 {
26 if (data == nullptr) {
27 return false;
28 }
29 // initialize
30 g_data = data;
31 g_size = size;
32 g_pos = 0;
33
34 std::shared_ptr<RSCanvas> rsCanvas = std::make_shared<RSCanvas>();
35 const char* str1 = "A";
36 Drawing::Font font;
37 auto textblob1 = Drawing::TextBlob::MakeFromText(str1, strlen(str1), font, Drawing::TextEncoding::UTF8);
38
39 float offsetX = SPText::GetObject<float>();
40 float offsety = SPText::GetObject<float>();
41 RSPoint paint = {offsetX, offsety};
42 RSEffectStrategy effectStrategy = SPText::GetObject<RSEffectStrategy>();
43 HMSymbolTxt symbolText;
44 symbolText.SetSymbolEffect(effectStrategy);
45
46 HMSymbolRun hmSymbolRun = HMSymbolRun();
47 hmSymbolRun.DrawSymbol(rsCanvas.get(), textblob1.get(), paint, symbolText);
48
49 // test the TextBlob is nullptr
50 textblob1 = nullptr;
51 hmSymbolRun.DrawSymbol(rsCanvas.get(), textblob1.get(), paint, symbolText);
52
53 // test the multiple glyphs
54 const char* str2 = "Test multiple glyphs";
55 auto textblob2 = Drawing::TextBlob::MakeFromText(str2, strlen(str2), font, Drawing::TextEncoding::UTF8);
56 hmSymbolRun.DrawSymbol(rsCanvas.get(), textblob2.get(), paint, symbolText);
57 return true;
58 }
59 } // namespace SPText
60 } // namespace Rosen
61 } // namespace OHOS
62
63 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)64 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
65 {
66 /* Run your code on data */
67 OHOS::Rosen::SPText::DrawSymbolFuzzTest(data, size);
68 return 0;
69 }
70