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 "SkCanvas.h"
10 #include "SkGraphics.h"
11 #include "SkImageGenerator.h"
12 #include "SkImageInfoPriv.h"
13 #include "Test.h"
14
15 static bool gMyFactoryWasCalled;
16
my_factory(sk_sp<SkData>)17 static std::unique_ptr<SkImageGenerator> my_factory(sk_sp<SkData>) {
18 gMyFactoryWasCalled = true;
19 return nullptr;
20 }
21
test_imagegenerator_factory(skiatest::Reporter * reporter)22 static void test_imagegenerator_factory(skiatest::Reporter* reporter) {
23 // just need a non-empty data to test things
24 sk_sp<SkData> data(SkData::MakeWithCString("test_imagegenerator_factory"));
25
26 gMyFactoryWasCalled = false;
27
28 REPORTER_ASSERT(reporter, !gMyFactoryWasCalled);
29
30 std::unique_ptr<SkImageGenerator> gen = SkImageGenerator::MakeFromEncoded(data);
31 REPORTER_ASSERT(reporter, nullptr == gen);
32 REPORTER_ASSERT(reporter, !gMyFactoryWasCalled);
33
34 // Test is racy, in that it hopes no other thread is changing this global...
35 auto prev = SkGraphics::SetImageGeneratorFromEncodedDataFactory(my_factory);
36 gen = SkImageGenerator::MakeFromEncoded(data);
37 REPORTER_ASSERT(reporter, nullptr == gen);
38 REPORTER_ASSERT(reporter, gMyFactoryWasCalled);
39 SkGraphics::SetImageGeneratorFromEncodedDataFactory(prev);
40 }
41
42 class MyImageGenerator : public SkImageGenerator {
43 public:
MyImageGenerator()44 MyImageGenerator() : SkImageGenerator(SkImageInfo::MakeN32Premul(0, 0)) {}
45 };
46
DEF_TEST(ImageGenerator,reporter)47 DEF_TEST(ImageGenerator, reporter) {
48 MyImageGenerator ig;
49 SkYUVSizeInfo sizeInfo;
50 sizeInfo.fSizes[SkYUVSizeInfo::kY] = SkISize::Make(200, 200);
51 sizeInfo.fSizes[SkYUVSizeInfo::kU] = SkISize::Make(100, 100);
52 sizeInfo.fSizes[SkYUVSizeInfo::kV] = SkISize::Make( 50, 50);
53 sizeInfo.fWidthBytes[SkYUVSizeInfo::kY] = 0;
54 sizeInfo.fWidthBytes[SkYUVSizeInfo::kU] = 0;
55 sizeInfo.fWidthBytes[SkYUVSizeInfo::kV] = 0;
56 void* planes[3] = { nullptr };
57 SkYUVColorSpace colorSpace;
58
59 // Check that the YUV decoding API does not cause any crashes
60 ig.queryYUV8(&sizeInfo, nullptr);
61 ig.queryYUV8(&sizeInfo, &colorSpace);
62 sizeInfo.fWidthBytes[SkYUVSizeInfo::kY] = 250;
63 sizeInfo.fWidthBytes[SkYUVSizeInfo::kU] = 250;
64 sizeInfo.fWidthBytes[SkYUVSizeInfo::kV] = 250;
65 int dummy;
66 planes[SkYUVSizeInfo::kY] = planes[SkYUVSizeInfo::kU] = planes[SkYUVSizeInfo::kV] = &dummy;
67 ig.getYUV8Planes(sizeInfo, planes);
68
69 // Suppressed due to https://code.google.com/p/skia/issues/detail?id=4339
70 if (false) {
71 test_imagegenerator_factory(reporter);
72 }
73 }
74
75 #include "SkAutoMalloc.h"
76 #include "SkPictureRecorder.h"
77
make_picture()78 static sk_sp<SkPicture> make_picture() {
79 SkPictureRecorder recorder;
80 recorder.beginRecording(100, 100)->drawColor(SK_ColorRED);
81 return recorder.finishRecordingAsPicture();
82 }
83
DEF_TEST(PictureImageGenerator,reporter)84 DEF_TEST(PictureImageGenerator, reporter) {
85 const struct {
86 SkColorType fColorType;
87 SkAlphaType fAlphaType;
88 bool fExpectSuccess;
89 } recs[] = {
90 { kRGBA_8888_SkColorType, kPremul_SkAlphaType, kRGBA_8888_SkColorType == kN32_SkColorType },
91 { kBGRA_8888_SkColorType, kPremul_SkAlphaType, kBGRA_8888_SkColorType == kN32_SkColorType },
92 { kRGBA_F16_SkColorType, kPremul_SkAlphaType, true },
93 { kRGBA_1010102_SkColorType, kPremul_SkAlphaType, true },
94
95 { kRGBA_8888_SkColorType, kUnpremul_SkAlphaType, false },
96 { kBGRA_8888_SkColorType, kUnpremul_SkAlphaType, false },
97 { kRGBA_F16_SkColorType, kUnpremul_SkAlphaType, false },
98 { kRGBA_1010102_SkColorType, kUnpremul_SkAlphaType, false },
99 };
100
101 auto colorspace = SkColorSpace::MakeSRGB();
102 auto picture = make_picture();
103 auto gen = SkImageGenerator::MakeFromPicture({100, 100}, picture, nullptr, nullptr,
104 SkImage::BitDepth::kU8, colorspace);
105
106 // worst case for all requests
107 SkAutoMalloc storage(100 * 100 * SkColorTypeBytesPerPixel(kRGBA_F16_SkColorType));
108
109 for (const auto& rec : recs) {
110 SkImageInfo info = SkImageInfo::Make(100, 100, rec.fColorType, rec.fAlphaType, colorspace);
111 bool success = gen->getPixels(info, storage.get(), info.minRowBytes());
112 REPORTER_ASSERT(reporter, success == rec.fExpectSuccess);
113 }
114 }
115
116