private byte[] method_11(byte[] A_0, int A_1, byte[] A_2, byte[] A_3)
{
byte[] buffer;
int length = A_0.Length;
if ((length % A_1) != 0)
{
length = ((length / A_1) + 1) * A_1;
buffer = this.class299_0.method_13(A_0, length, 0);
}
else
{
buffer = A_0;
}
byte[] dst = new byte[length];
byte[] buffer2 = new byte[A_1];
byte[] buffer3 = new byte[A_1];
Class441 class2 = new Class441(Class441.KeySize.Bits128, A_2);
for (int i = 0; i < length; i += A_1)
{
Buffer.BlockCopy(buffer, i, buffer2, 0, A_1);
if (i == 0)
{
buffer2 = this.class299_0.method_14(buffer2, A_3);
}
else
{
buffer2 = this.class299_0.method_14(buffer2, buffer3);
}
class2.method_1(buffer2, buffer3);
Buffer.BlockCopy(buffer3, 0, dst, i, A_1);
}
return(dst);
}
private void method_9(Stream A_0, byte[] A_1, Stream A_2)
{
Class441 class2 = new Class441(Class441.KeySize.Bits128, A_1);
byte[] buffer = new byte[0x10];
byte[] buffer2 = new byte[0x10];
while (A_0.Read(buffer, 0, 0x10) > 0)
{
class2.method_1(buffer, buffer2);
A_2.Write(buffer2, 0, 0x10);
}
}
private void method_23(Class441 page, byte[] data, int offset, int length)
{
if (this.stream_0.Position % 32L != 0L)
{
throw new Exception();
}
long position = this.stream_0.Position;
page.Id = (long)(this.list_1.Count + 1);
page.StreamOffset = (ulong)(position - 1152L);
this.stream_0.Write(data, offset, length);
this.method_25(this.stream_0, (uint)(((ulong)(length + 32 - 1) & 18446744073709551584UL) - (ulong)length));
page.Length = this.stream_0.Position - position;
this.list_1.Add(page);
}
// Token: 0x06001FD3 RID: 8147
// RVA: 0x0001A06B File Offset: 0x0001826B
public void method_0(Class441 class441_1)
{
if (class441_1 != this.class441_0)
{
class441_1.method_13();
}
}
private byte[] method_5(byte[] A_0, int A_1, byte[] A_2, byte[] A_3, int A_4)
{
byte[] buffer5;
int length = A_0.Length;
byte[] dst = new byte[length];
byte[] src = new byte[A_1];
byte[] buffer3 = new byte[A_1];
byte[] buffer4 = new byte[A_1];
int num2 = this.class62_0.method_4().method_4().method_0().method_6();
Class441.KeySize size = Class441.KeySize.Bits128;
switch (num2)
{
case 0xc0:
size = Class441.KeySize.Bits192;
break;
case 0x100:
size = Class441.KeySize.Bits256;
break;
default:
size = Class441.KeySize.Bits128;
break;
}
Class441 class2 = new Class441(size, A_2);
int srcOffset = 0;
if ((length % A_1) != 0)
{
length = ((length / A_1) + 1) * A_1;
buffer5 = this.class299_0.method_13(A_0, length, 0);
}
else
{
buffer5 = A_0;
}
while (srcOffset < length)
{
if (srcOffset == 0)
{
Buffer.BlockCopy(A_3, 0, buffer4, 0, A_1);
}
else
{
Buffer.BlockCopy(src, 0, buffer4, 0, A_1);
}
Buffer.BlockCopy(buffer5, srcOffset, src, 0, A_1);
class2.method_2(src, buffer3);
buffer3 = this.class299_0.method_14(buffer3, buffer4);
Buffer.BlockCopy(buffer3, 0, dst, srcOffset, A_1);
srcOffset += A_1;
}
if (dst.Length > A_4)
{
src = new byte[A_4];
Buffer.BlockCopy(dst, 0, src, 0, A_4);
dst = src;
}
return(dst);
}
private void method_18()
{
this.class442_0.StreamOffset = 0UL;
ulong pageSize = this.method_19(this.list_1.Count);
long num1 = (long)(this.list_1.Count + 1 + 2);
if (pageSize <= 1024UL)
{
Class441 class441 = this.list_1[0];
long num2 = num1;
long num3 = num2 + 1L;
class441.Id = num2;
this.list_1[1].Id = num3;
this.class954_0.PagesMapId = (ulong)this.list_1[0].Id;
this.class954_0.PagesMapOffset = this.list_1[0].StreamOffset;
this.class954_0.PagesMap2Id = (ulong)this.list_1[1].Id;
this.class954_0.PagesMap2Offset = this.list_1[1].StreamOffset;
}
else
{
Class441 class441_1 = this.list_1[0];
long num2 = num1;
long num3 = num2 + 1L;
long num4 = -num2;
class441_1.Id = num4;
Class441 class441_2 = this.list_1[1];
long num5 = num3;
long num6 = num5 + 1L;
long num7 = -num5;
class441_2.Id = num7;
uint num8 = (uint)(this.stream_0.Position - 1152L);
Class442 class442_1 = new Class442();
Class442 class442_2 = class442_1;
long num9 = num6;
long num10 = num9 + 1L;
class442_2.Id = num9;
class442_1.StreamOffset = (ulong)(num8 - 1152U);
this.list_1.Add((Class441)class442_1);
Class442 class442_3 = new Class442();
class442_3.Id = num10;
class442_3.StreamOffset = (ulong)((long)num8 + (long)pageSize - 1152L);
this.list_1.Add((Class441)class442_3);
}
this.class954_0.PagesMaxId = 0UL;
this.class954_0.PageCount = (ulong)(uint)this.list_1.Count;
this.class954_0.PagesMapOffset = this.class442_0.StreamOffset;
MemoryStream sectionStream = new MemoryStream();
Class889 class889 = Class889.Create((Stream)sectionStream, this.dxfVersion_0, this.encoding_0);
foreach (Class441 class441 in this.list_1)
{
if (class441 != null)
{
class889.vmethod_13(class441.Length);
class889.vmethod_13(class441.Id);
if (class441.Id > (long)this.class954_0.PagesMaxId)
{
this.class954_0.PagesMaxId = (ulong)class441.Id;
}
}
}
byte[] pageData;
this.method_20(this.class442_0, sectionStream, this.class954_0.PagesMapCrcSeed, pageSize, out pageData);
this.class442_0.Length = (long)pageData.Length;
long id = this.class442_1.Id;
this.class442_1.CopyFrom(this.class442_0);
this.class442_1.Id = id;
this.class442_1.StreamOffset = 1024UL;
this.stream_0.Position = (long)this.class954_0.PagesMapOffset + 1152L;
this.stream_0.Write(pageData, 0, pageData.Length);
this.stream_0.Position = (long)this.class954_0.PagesMap2Offset + 1152L;
this.stream_0.Write(pageData, 0, pageData.Length);
this.class954_0.PagesMapDataRepeatCount = this.class442_0.DataRepeatCount;
this.class954_0.PagesMapSizeCompressed = this.class442_0.CompressedSize;
this.class954_0.PagesMapSizeDecompressed = this.class442_0.DecompressedSize;
this.class954_0.PagesMapCrcCompressed = this.class442_0.CompressedCrc;
this.class954_0.PagesMapCrcDecompressed = this.class442_0.DecompressedCrc;
}
private byte[] method_8(byte[] A_0, byte[] A_1)
{
Class441 class2 = new Class441(Class441.KeySize.Bits128, A_1);
return(this.class299_0.method_11(A_0, new Class299.Delegate2(class2.method_1), A_1.Length));
}
public abstract void Visit(Class441 c);
public override void Visit(Class441 c) { }