Coverage Report

Created: 2026-09-26 06:49

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/serenity/Userland/Libraries/LibGfx/ImageFormats/ImageDecoder.cpp
Line
Count
Source
1
/*
2
 * Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
3
 *
4
 * SPDX-License-Identifier: BSD-2-Clause
5
 */
6
7
#include <AK/LexicalPath.h>
8
#include <LibGfx/ImageFormats/BMPLoader.h>
9
#include <LibGfx/ImageFormats/DDSLoader.h>
10
#include <LibGfx/ImageFormats/DICOMLoader.h>
11
#include <LibGfx/ImageFormats/GIFLoader.h>
12
#include <LibGfx/ImageFormats/ICOLoader.h>
13
#include <LibGfx/ImageFormats/ILBMLoader.h>
14
#include <LibGfx/ImageFormats/ImageDecoder.h>
15
#include <LibGfx/ImageFormats/JBIG2Loader.h>
16
#include <LibGfx/ImageFormats/JPEG2000Loader.h>
17
#include <LibGfx/ImageFormats/JPEGLoader.h>
18
#include <LibGfx/ImageFormats/JPEGXLLoader.h>
19
#include <LibGfx/ImageFormats/PAMLoader.h>
20
#include <LibGfx/ImageFormats/PBMLoader.h>
21
#include <LibGfx/ImageFormats/PGMLoader.h>
22
#include <LibGfx/ImageFormats/PNGLoader.h>
23
#include <LibGfx/ImageFormats/PPMLoader.h>
24
#include <LibGfx/ImageFormats/QOILoader.h>
25
#include <LibGfx/ImageFormats/TGALoader.h>
26
#include <LibGfx/ImageFormats/TIFFLoader.h>
27
#include <LibGfx/ImageFormats/TinyVGLoader.h>
28
#include <LibGfx/ImageFormats/WebPLoader.h>
29
30
namespace Gfx {
31
32
static ErrorOr<OwnPtr<ImageDecoderPlugin>> probe_and_sniff_for_appropriate_plugin(ReadonlyBytes bytes)
33
0
{
34
0
    struct ImagePluginInitializer {
35
0
        bool (*sniff)(ReadonlyBytes) = nullptr;
36
0
        ErrorOr<NonnullOwnPtr<ImageDecoderPlugin>> (*create)(ReadonlyBytes) = nullptr;
37
0
    };
38
39
0
    static constexpr ImagePluginInitializer s_initializers[] = {
40
0
        { BMPImageDecoderPlugin::sniff, BMPImageDecoderPlugin::create },
41
0
        { DDSImageDecoderPlugin::sniff, DDSImageDecoderPlugin::create },
42
0
        { DICOMImageDecoderPlugin::sniff, DICOMImageDecoderPlugin::create },
43
0
        { GIFImageDecoderPlugin::sniff, GIFImageDecoderPlugin::create },
44
0
        { ICOImageDecoderPlugin::sniff, ICOImageDecoderPlugin::create },
45
0
        { ILBMImageDecoderPlugin::sniff, ILBMImageDecoderPlugin::create },
46
0
        { JBIG2ImageDecoderPlugin::sniff, JBIG2ImageDecoderPlugin::create },
47
0
        { JPEG2000ImageDecoderPlugin::sniff, JPEG2000ImageDecoderPlugin::create },
48
0
        { JPEGImageDecoderPlugin::sniff, JPEGImageDecoderPlugin::create },
49
0
        { JPEGXLImageDecoderPlugin::sniff, JPEGXLImageDecoderPlugin::create },
50
0
        { PAMImageDecoderPlugin::sniff, PAMImageDecoderPlugin::create },
51
0
        { PBMImageDecoderPlugin::sniff, PBMImageDecoderPlugin::create },
52
0
        { PGMImageDecoderPlugin::sniff, PGMImageDecoderPlugin::create },
53
0
        { PNGImageDecoderPlugin::sniff, PNGImageDecoderPlugin::create },
54
0
        { PPMImageDecoderPlugin::sniff, PPMImageDecoderPlugin::create },
55
0
        { QOIImageDecoderPlugin::sniff, QOIImageDecoderPlugin::create },
56
0
        { TIFFImageDecoderPlugin::sniff, TIFFImageDecoderPlugin::create },
57
0
        { TinyVGImageDecoderPlugin::sniff, TinyVGImageDecoderPlugin::create },
58
0
        { WebPImageDecoderPlugin::sniff, WebPImageDecoderPlugin::create },
59
0
    };
60
61
0
    for (auto& plugin : s_initializers) {
62
0
        auto sniff_result = plugin.sniff(bytes);
63
0
        if (!sniff_result)
64
0
            continue;
65
0
        return TRY(plugin.create(bytes));
66
0
    }
67
0
    return OwnPtr<ImageDecoderPlugin> {};
68
0
}
69
70
static ErrorOr<OwnPtr<ImageDecoderPlugin>> probe_and_sniff_for_appropriate_plugin_with_known_mime_type(StringView mime_type, ReadonlyBytes bytes)
71
0
{
72
0
    struct ImagePluginWithMIMETypeInitializer {
73
0
        bool (*validate_before_create)(ReadonlyBytes) = nullptr;
74
0
        ErrorOr<NonnullOwnPtr<ImageDecoderPlugin>> (*create)(ReadonlyBytes) = nullptr;
75
0
        StringView mime_type;
76
0
    };
77
78
0
    static constexpr ImagePluginWithMIMETypeInitializer s_initializers_with_mime_type[] = {
79
0
        { TGAImageDecoderPlugin::validate_before_create, TGAImageDecoderPlugin::create, "image/x-targa"sv },
80
0
    };
81
82
0
    for (auto& plugin : s_initializers_with_mime_type) {
83
0
        if (plugin.mime_type != mime_type)
84
0
            continue;
85
0
        auto validation_result = plugin.validate_before_create(bytes);
86
0
        if (!validation_result)
87
0
            continue;
88
0
        return TRY(plugin.create(bytes));
89
0
    }
90
0
    return OwnPtr<ImageDecoderPlugin> {};
91
0
}
92
93
ErrorOr<RefPtr<ImageDecoder>> ImageDecoder::try_create_for_raw_bytes(ReadonlyBytes bytes, Optional<ByteString> mime_type)
94
0
{
95
0
    if (auto plugin = TRY(probe_and_sniff_for_appropriate_plugin(bytes)); plugin)
96
0
        return adopt_ref_if_nonnull(new (nothrow) ImageDecoder(plugin.release_nonnull()));
97
98
0
    if (mime_type.has_value()) {
99
0
        if (OwnPtr<ImageDecoderPlugin> plugin = TRY(probe_and_sniff_for_appropriate_plugin_with_known_mime_type(mime_type.value(), bytes)); plugin)
100
0
            return adopt_ref_if_nonnull(new (nothrow) ImageDecoder(plugin.release_nonnull()));
101
0
    }
102
103
0
    return RefPtr<ImageDecoder> {};
104
0
}
105
106
ImageDecoder::ImageDecoder(NonnullOwnPtr<ImageDecoderPlugin> plugin)
107
0
    : m_plugin(move(plugin))
108
0
{
109
0
}
110
111
}