1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
using Avalonia.Media;
using LibHac.Common;
using LibHac.Fs;
using LibHac.Fs.Fsa;
using LibHac.FsSystem;
using LibHac.Ncm;
using LibHac.Tools.Fs;
using LibHac.Tools.FsSystem;
using LibHac.Tools.FsSystem.NcaUtils;
using Ryujinx.Ava.UI.Models;
using Ryujinx.HLE.FileSystem;
using SixLabors.ImageSharp;
using SixLabors.ImageSharp.PixelFormats;
using System;
using System.Buffers.Binary;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.IO;
using Color = Avalonia.Media.Color;
namespace Ryujinx.Ava.UI.ViewModels
{
internal class UserFirmwareAvatarSelectorViewModel : BaseModel
{
private static readonly Dictionary<string, byte[]> _avatarStore = new();
private ObservableCollection<ProfileImageModel> _images;
private Color _backgroundColor = Colors.White;
private int _selectedIndex;
public UserFirmwareAvatarSelectorViewModel()
{
_images = new ObservableCollection<ProfileImageModel>();
LoadImagesFromStore();
}
public Color BackgroundColor
{
get => _backgroundColor;
set
{
_backgroundColor = value;
OnPropertyChanged();
ChangeImageBackground();
}
}
public ObservableCollection<ProfileImageModel> Images
{
get => _images;
set
{
_images = value;
OnPropertyChanged();
}
}
public int SelectedIndex
{
get => _selectedIndex;
set
{
_selectedIndex = value;
if (_selectedIndex == -1)
{
SelectedImage = null;
}
else
{
SelectedImage = _images[_selectedIndex].Data;
}
OnPropertyChanged();
}
}
public byte[] SelectedImage { get; private set; }
private void LoadImagesFromStore()
{
Images.Clear();
foreach (var image in _avatarStore)
{
Images.Add(new ProfileImageModel(image.Key, image.Value));
}
}
private void ChangeImageBackground()
{
foreach (var image in Images)
{
image.BackgroundColor = new SolidColorBrush(BackgroundColor);
}
}
public static void PreloadAvatars(ContentManager contentManager, VirtualFileSystem virtualFileSystem)
{
if (_avatarStore.Count > 0)
{
return;
}
string contentPath = contentManager.GetInstalledContentPath(0x010000000000080A, StorageId.BuiltInSystem, NcaContentType.Data);
string avatarPath = VirtualFileSystem.SwitchPathToSystemPath(contentPath);
if (!string.IsNullOrWhiteSpace(avatarPath))
{
using IStorage ncaFileStream = new LocalStorage(avatarPath, FileAccess.Read, FileMode.Open);
Nca nca = new(virtualFileSystem.KeySet, ncaFileStream);
IFileSystem romfs = nca.OpenFileSystem(NcaSectionType.Data, IntegrityCheckLevel.ErrorOnInvalid);
foreach (DirectoryEntryEx item in romfs.EnumerateEntries())
{
// TODO: Parse DatabaseInfo.bin and table.bin files for more accuracy.
if (item.Type == DirectoryEntryType.File && item.FullPath.Contains("chara") && item.FullPath.Contains("szs"))
{
using var file = new UniqueRef<IFile>();
romfs.OpenFile(ref file.Ref, ("/" + item.FullPath).ToU8Span(), OpenMode.Read).ThrowIfFailure();
using MemoryStream stream = new();
using MemoryStream streamPng = new();
file.Get.AsStream().CopyTo(stream);
stream.Position = 0;
Image avatarImage = Image.LoadPixelData<Rgba32>(DecompressYaz0(stream), 256, 256);
avatarImage.SaveAsPng(streamPng);
_avatarStore.Add(item.FullPath, streamPng.ToArray());
}
}
}
}
private static byte[] DecompressYaz0(Stream stream)
{
using BinaryReader reader = new(stream);
reader.ReadInt32(); // Magic
uint decodedLength = BinaryPrimitives.ReverseEndianness(reader.ReadUInt32());
reader.ReadInt64(); // Padding
byte[] input = new byte[stream.Length - stream.Position];
stream.Read(input, 0, input.Length);
uint inputOffset = 0;
byte[] output = new byte[decodedLength];
uint outputOffset = 0;
ushort mask = 0;
byte header = 0;
while (outputOffset < decodedLength)
{
if ((mask >>= 1) == 0)
{
header = input[inputOffset++];
mask = 0x80;
}
if ((header & mask) != 0)
{
if (outputOffset == output.Length)
{
break;
}
output[outputOffset++] = input[inputOffset++];
}
else
{
byte byte1 = input[inputOffset++];
byte byte2 = input[inputOffset++];
uint dist = (uint)((byte1 & 0xF) << 8) | byte2;
uint position = outputOffset - (dist + 1);
uint length = (uint)byte1 >> 4;
if (length == 0)
{
length = (uint)input[inputOffset++] + 0x12;
}
else
{
length += 2;
}
uint gap = outputOffset - position;
uint nonOverlappingLength = length;
if (nonOverlappingLength > gap)
{
nonOverlappingLength = gap;
}
Buffer.BlockCopy(output, (int)position, output, (int)outputOffset, (int)nonOverlappingLength);
outputOffset += nonOverlappingLength;
position += nonOverlappingLength;
length -= nonOverlappingLength;
while (length-- > 0)
{
output[outputOffset++] = output[position++];
}
}
}
return output;
}
}
}
|
