1 /*
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 "SkData.h"
9 #include "SkGraphics.h"
10 #include "SkImageGenerator.h"
11 #include "Test.h"
12
13 static bool gMyFactoryWasCalled;
14
my_factory(sk_sp<SkData>)15 static std::unique_ptr<SkImageGenerator> my_factory(sk_sp<SkData>) {
16 gMyFactoryWasCalled = true;
17 return nullptr;
18 }
19
test_imagegenerator_factory(skiatest::Reporter * reporter)20 static void test_imagegenerator_factory(skiatest::Reporter* reporter) {
21 // just need a non-empty data to test things
22 sk_sp<SkData> data(SkData::MakeWithCString("test_imagegenerator_factory"));
23
24 gMyFactoryWasCalled = false;
25
26 REPORTER_ASSERT(reporter, !gMyFactoryWasCalled);
27
28 std::unique_ptr<SkImageGenerator> gen = SkImageGenerator::MakeFromEncoded(data);
29 REPORTER_ASSERT(reporter, nullptr == gen);
30 REPORTER_ASSERT(reporter, !gMyFactoryWasCalled);
31
32 // Test is racy, in that it hopes no other thread is changing this global...
33 auto prev = SkGraphics::SetImageGeneratorFromEncodedDataFactory(my_factory);
34 gen = SkImageGenerator::MakeFromEncoded(data);
35 REPORTER_ASSERT(reporter, nullptr == gen);
36 REPORTER_ASSERT(reporter, gMyFactoryWasCalled);
37 SkGraphics::SetImageGeneratorFromEncodedDataFactory(prev);
38 }
39
40 class MyImageGenerator : public SkImageGenerator {
41 public:
MyImageGenerator()42 MyImageGenerator() : SkImageGenerator(SkImageInfo::MakeN32Premul(0, 0)) {}
43 };
44
DEF_TEST(ImageGenerator,reporter)45 DEF_TEST(ImageGenerator, reporter) {
46 MyImageGenerator ig;
47 SkYUVSizeInfo sizeInfo;
48 sizeInfo.fSizes[SkYUVSizeInfo::kY] = SkISize::Make(200, 200);
49 sizeInfo.fSizes[SkYUVSizeInfo::kU] = SkISize::Make(100, 100);
50 sizeInfo.fSizes[SkYUVSizeInfo::kV] = SkISize::Make( 50, 50);
51 sizeInfo.fWidthBytes[SkYUVSizeInfo::kY] = 0;
52 sizeInfo.fWidthBytes[SkYUVSizeInfo::kU] = 0;
53 sizeInfo.fWidthBytes[SkYUVSizeInfo::kV] = 0;
54 void* planes[3] = { nullptr };
55 SkYUVColorSpace colorSpace;
56
57 // Check that the YUV decoding API does not cause any crashes
58 ig.queryYUV8(&sizeInfo, nullptr);
59 ig.queryYUV8(&sizeInfo, &colorSpace);
60 sizeInfo.fWidthBytes[SkYUVSizeInfo::kY] = 250;
61 sizeInfo.fWidthBytes[SkYUVSizeInfo::kU] = 250;
62 sizeInfo.fWidthBytes[SkYUVSizeInfo::kV] = 250;
63 int dummy;
64 planes[SkYUVSizeInfo::kY] = planes[SkYUVSizeInfo::kU] = planes[SkYUVSizeInfo::kV] = &dummy;
65 ig.getYUV8Planes(sizeInfo, planes);
66
67 // Suppressed due to https://code.google.com/p/skia/issues/detail?id=4339
68 if (false) {
69 test_imagegenerator_factory(reporter);
70 }
71 }
72