Oni2/OniSplit/BinaryWriter.cs

using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Text;
using Oni.Imaging;

namespace Oni
{
    internal class BinaryWriter : System.IO.BinaryWriter
    {
        private static readonly byte[] padding = new byte[32];
        private static readonly Encoding encoding = Encoding.UTF8;
        private readonly Stack<int> positionStack = new Stack<int>();

        public BinaryWriter(Stream stream)
            : base(stream, encoding)
        {
        }

        public void WriteInstanceId(int index)
        {
            Write(InstanceFileWriter.MakeInstanceId(index));
        }

        public void Write(IEnumerable<ImporterDescriptor> descriptors)
        {
            foreach (var descriptor in descriptors)
                Write(descriptor);
        }

        public void Write(ImporterDescriptor descriptor)
        {
            if (descriptor == null)
                Write(0);
            else
                Write(InstanceFileWriter.MakeInstanceId(descriptor.Index));
        }

        public void Write(Color c)
        {
            Write(c.ToBgra32());
        }

        public void Write(Vector2 v)
        {
            Write(v.X);
            Write(v.Y);
        }

        public void Write(Vector3 v)
        {
            Write(v.X);
            Write(v.Y);
            Write(v.Z);
        }

        public void Write(Vector4 v)
        {
            Write(v.X);
            Write(v.Y);
            Write(v.Z);
            Write(v.W);
        }

        public void Write(Quaternion q)
        {
            Write(q.X);
            Write(q.Y);
            Write(q.Z);
            Write(-q.W);
        }

        public void Write(Plane p)
        {
            Write(p.Normal);
            Write(p.D);
        }

        public void Write(BoundingBox bbox)
        {
            Write(bbox.Min);
            Write(bbox.Max);
        }

        public void Write(BoundingSphere bsphere)
        {
            Write(bsphere.Center);
            Write(bsphere.Radius);
        }

        public void WriteMatrix4x3(Matrix m)
        {
            Write(m.M11);
            Write(m.M12);
            Write(m.M13);
            Write(m.M21);
            Write(m.M22);
            Write(m.M23);
            Write(m.M31);
            Write(m.M32);
            Write(m.M33);
            Write(m.M41);
            Write(m.M42);
            Write(m.M43);
        }

        public void Write(short[] a)
        {
            foreach (short v in a)
                Write(v);
        }

        public void Write(ushort[] a)
        {
            foreach (ushort v in a)
                Write(v);
        }

        public void Write(int[] a)
        {
            foreach (int v in a)
                Write(v);
        }

        public void Write(int[] v, int startIndex, int length)
        {
            for (int i = startIndex; i < startIndex + length; i++)
                Write(v[i]);
        }

        public void Write(IEnumerable<float> a)
        {
            foreach (float v in a)
                Write(v);
        }

        public void Write(IEnumerable<int> a)
        {
            foreach (int i in a)
                Write(i);
        }

        public void Write(Color[] a)
        {
            foreach (Color v in a)
                Write(v);
        }

        public void Write(IEnumerable<Vector2> a)
        {
            foreach (Vector2 v in a)
                Write(v);
        }

        public void Write(IEnumerable<Vector3> a)
        {
            foreach (Vector3 v in a)
                Write(v);
        }

        public void Write(IEnumerable<Plane> a)
        {
            foreach (Plane v in a)
                Write(v);
        }

        public void Write(string s, int maxLength)
        {
            if (s == null)
            {
                Skip(maxLength);
                return;
            }

            if (encoding.GetByteCount(s) > maxLength)
                throw new NotSupportedException(string.Format(CultureInfo.CurrentCulture, "The string '{0}' is too long (max length is {1})", s, maxLength));

            byte[] data = new byte[maxLength];
            encoding.GetBytes(s, 0, s.Length, data, 0);
            Write(data);
        }

        public void WriteByte(int value)
        {
            if (value < byte.MinValue || byte.MaxValue < value)
                throw new ArgumentOutOfRangeException("Value too large for Byte", "value");

            Write((byte)value);
        }

        public void WriteInt16(int value)
        {
            if (value < short.MinValue || short.MaxValue < value)
                throw new ArgumentOutOfRangeException("Value too large for Int16", "value");

            Write((short)value);
        }

        public void WriteUInt16(int value)
        {
            if (value < 0 || value > UInt16.MaxValue)
                throw new ArgumentOutOfRangeException("Value too large for UInt16", "value");

            Write((ushort)value);
        }

        public void Write(byte value, int count)
        {
            if (value == 0 && Position == OutStream.Length)
            {
                Seek(count, SeekOrigin.Current);
            }
            else
            {
                for (int i = 0; i < count; i++)
                    Write(value);
            }
        }

        public void Skip(int length)
        {
            Position += length;
        }

        public override Stream BaseStream
        {
            get
            {
                //
                // Note: return base OutStream directly instead of BaseStream to avoid
                // flushing the stream.
                //

                return base.OutStream;
            }
        }

        public void PushPosition(int newPosition)
        {
            positionStack.Push(Position);
            Position = newPosition;
        }

        public void PopPosition()
        {
            Position = positionStack.Pop();
        }

        public int Position
        {
            get
            {
                return (int)BaseStream.Position;
            }
            set
            {
                int currentPosition = (int)OutStream.Position;
                int delta = value - currentPosition;

                if (delta == 0)
                    return;

                //
                // Prevent changing the output stream position for small changes of position.
                // This avoids flushing the write cache of the stream which results in poor perf.
                //

                if (0 < delta && delta <= 32 && Position == OutStream.Length)
                    OutStream.Write(padding, 0, delta);
                else
                    OutStream.Position = value;
            }
        }

        public void WriteAt(int position, int value)
        {
            PushPosition(position);
            Write(value);
            PopPosition();
        }

        public void WriteAt(int position, short value)
        {
            PushPosition(position);
            Write(value);
            PopPosition();
        }

        public int Align32()
        {
            int position = Utils.Align32(Position);
            Position = position;
            return position;
        }
    }
}
Revision:	1114
Committed:	Wed Jan 22 14:08:57 2020 UTC (5 years, 9 months ago) by iritscen
File size:	7611 byte(s)
Log Message:	Adding OniSplit source code (v0.9.99.0). Many thanks to Neo for all his work over the years.
#	Content
1	using System;
2	using System.Collections.Generic;
3	using System.Globalization;
4	using System.IO;
5	using System.Text;
6	using Oni.Imaging;
7
8	namespace Oni
9	{
10	internal class BinaryWriter : System.IO.BinaryWriter
11	{
12	private static readonly byte[] padding = new byte[32];
13	private static readonly Encoding encoding = Encoding.UTF8;
14	private readonly Stack<int> positionStack = new Stack<int>();
15
16	public BinaryWriter(Stream stream)
17	: base(stream, encoding)
18	{
19	}
20
21	public void WriteInstanceId(int index)
22	{
23	Write(InstanceFileWriter.MakeInstanceId(index));
24	}
25
26	public void Write(IEnumerable<ImporterDescriptor> descriptors)
27	{
28	foreach (var descriptor in descriptors)
29	Write(descriptor);
30	}
31
32	public void Write(ImporterDescriptor descriptor)
33	{
34	if (descriptor == null)
35	Write(0);
36	else
37	Write(InstanceFileWriter.MakeInstanceId(descriptor.Index));
38	}
39
40	public void Write(Color c)
41	{
42	Write(c.ToBgra32());
43	}
44
45	public void Write(Vector2 v)
46	{
47	Write(v.X);
48	Write(v.Y);
49	}
50
51	public void Write(Vector3 v)
52	{
53	Write(v.X);
54	Write(v.Y);
55	Write(v.Z);
56	}
57
58	public void Write(Vector4 v)
59	{
60	Write(v.X);
61	Write(v.Y);
62	Write(v.Z);
63	Write(v.W);
64	}
65
66	public void Write(Quaternion q)
67	{
68	Write(q.X);
69	Write(q.Y);
70	Write(q.Z);
71	Write(-q.W);
72	}
73
74	public void Write(Plane p)
75	{
76	Write(p.Normal);
77	Write(p.D);
78	}
79
80	public void Write(BoundingBox bbox)
81	{
82	Write(bbox.Min);
83	Write(bbox.Max);
84	}
85
86	public void Write(BoundingSphere bsphere)
87	{
88	Write(bsphere.Center);
89	Write(bsphere.Radius);
90	}
91
92	public void WriteMatrix4x3(Matrix m)
93	{
94	Write(m.M11);
95	Write(m.M12);
96	Write(m.M13);
97	Write(m.M21);
98	Write(m.M22);
99	Write(m.M23);
100	Write(m.M31);
101	Write(m.M32);
102	Write(m.M33);
103	Write(m.M41);
104	Write(m.M42);
105	Write(m.M43);
106	}
107
108	public void Write(short[] a)
109	{
110	foreach (short v in a)
111	Write(v);
112	}
113
114	public void Write(ushort[] a)
115	{
116	foreach (ushort v in a)
117	Write(v);
118	}
119
120	public void Write(int[] a)
121	{
122	foreach (int v in a)
123	Write(v);
124	}
125
126	public void Write(int[] v, int startIndex, int length)
127	{
128	for (int i = startIndex; i < startIndex + length; i++)
129	Write(v[i]);
130	}
131
132	public void Write(IEnumerable<float> a)
133	{
134	foreach (float v in a)
135	Write(v);
136	}
137
138	public void Write(IEnumerable<int> a)
139	{
140	foreach (int i in a)
141	Write(i);
142	}
143
144	public void Write(Color[] a)
145	{
146	foreach (Color v in a)
147	Write(v);
148	}
149
150	public void Write(IEnumerable<Vector2> a)
151	{
152	foreach (Vector2 v in a)
153	Write(v);
154	}
155
156	public void Write(IEnumerable<Vector3> a)
157	{
158	foreach (Vector3 v in a)
159	Write(v);
160	}
161
162	public void Write(IEnumerable<Plane> a)
163	{
164	foreach (Plane v in a)
165	Write(v);
166	}
167
168	public void Write(string s, int maxLength)
169	{
170	if (s == null)
171	{
172	Skip(maxLength);
173	return;
174	}
175
176	if (encoding.GetByteCount(s) > maxLength)
177	throw new NotSupportedException(string.Format(CultureInfo.CurrentCulture, "The string '{0}' is too long (max length is {1})", s, maxLength));
178
179	byte[] data = new byte[maxLength];
180	encoding.GetBytes(s, 0, s.Length, data, 0);
181	Write(data);
182	}
183
184	public void WriteByte(int value)
185	{
186	if (value < byte.MinValue \|\| byte.MaxValue < value)
187	throw new ArgumentOutOfRangeException("Value too large for Byte", "value");
188
189	Write((byte)value);
190	}
191
192	public void WriteInt16(int value)
193	{
194	if (value < short.MinValue \|\| short.MaxValue < value)
195	throw new ArgumentOutOfRangeException("Value too large for Int16", "value");
196
197	Write((short)value);
198	}
199
200	public void WriteUInt16(int value)
201	{
202	if (value < 0 \|\| value > UInt16.MaxValue)
203	throw new ArgumentOutOfRangeException("Value too large for UInt16", "value");
204
205	Write((ushort)value);
206	}
207
208	public void Write(byte value, int count)
209	{
210	if (value == 0 && Position == OutStream.Length)
211	{
212	Seek(count, SeekOrigin.Current);
213	}
214	else
215	{
216	for (int i = 0; i < count; i++)
217	Write(value);
218	}
219	}
220
221	public void Skip(int length)
222	{
223	Position += length;
224	}
225
226	public override Stream BaseStream
227	{
228	get
229	{
230	//
231	// Note: return base OutStream directly instead of BaseStream to avoid
232	// flushing the stream.
233	//
234
235	return base.OutStream;
236	}
237	}
238
239	public void PushPosition(int newPosition)
240	{
241	positionStack.Push(Position);
242	Position = newPosition;
243	}
244
245	public void PopPosition()
246	{
247	Position = positionStack.Pop();
248	}
249
250	public int Position
251	{
252	get
253	{
254	return (int)BaseStream.Position;
255	}
256	set
257	{
258	int currentPosition = (int)OutStream.Position;
259	int delta = value - currentPosition;
260
261	if (delta == 0)
262	return;
263
264	//
265	// Prevent changing the output stream position for small changes of position.
266	// This avoids flushing the write cache of the stream which results in poor perf.
267	//
268
269	if (0 < delta && delta <= 32 && Position == OutStream.Length)
270	OutStream.Write(padding, 0, delta);
271	else
272	OutStream.Position = value;
273	}
274	}
275
276	public void WriteAt(int position, int value)
277	{
278	PushPosition(position);
279	Write(value);
280	PopPosition();
281	}
282
283	public void WriteAt(int position, short value)
284	{
285	PushPosition(position);
286	Write(value);
287	PopPosition();
288	}
289
290	public int Align32()
291	{
292	int position = Utils.Align32(Position);
293	Position = position;
294	return position;
295	}
296	}
297	}