public static c00005b m0001c5(string p0)
{
int count = m000173(p0);
Array.Clear(f00001d, 0, f00001d.Length);
f000010 = -1;
Stream stream = new MemoryStream(f000008, 0, count);
if (!m0002c1(ref stream))
{
throw new ArgumentException(string.Format("Argument Stream {0} does not contain a valid PNG file.", stream));
}
List<struct01c6> list = new List<struct01c6>();
while (m0002bd(ref stream, ref list))
{
}
stream.Close();
struct01c7 structc = m0002be(ref list);
struct01de structde = new struct01de();
return new c00005b((int) structc.f00001b, (int) structc.f00005f, m0002c3(m0002b9(m0002c0(list, structc, ref structde), structc), structc, structde));
}
private static byte[] m0002c0(List<struct01c6> p0, struct01c7 p1, ref struct01de p2)
{
int num = 0;
using (List<struct01c6>.Enumerator enumerator = p0.GetEnumerator())
{
Label_000B:
if (!enumerator.MoveNext())
{
goto Label_01D6;
}
struct01c6 current = enumerator.Current;
enum01c5 enumc = current.f000001;
if (enumc <= enum01c5.f000085)
{
if (enumc != enum01c5.f000001)
{
if (enumc == enum01c5.f000045)
{
goto Label_011A;
}
if (enumc == enum01c5.f000085)
{
goto Label_012C;
}
}
goto Label_000B;
}
if (enumc != enum01c5.f000043)
{
if (enumc == enum01c5.f000044)
{
goto Label_00AF;
}
if (enumc == enum01c5.f000086)
{
goto Label_017C;
}
goto Label_000B;
}
throw new Exception(string.Format("List<Chunk> chunks still contains IHDR chunk info.", new object[0]));
Label_00AF:
if ((p1.f00001d == 0) || (p1.f00001d == 4))
{
throw new Exception(string.Format("The given ColorType, {0}, does not support the use of a Palette.", p1.f00001d));
}
p2.f000018 = new struct01df[(((int) 1) << (p1.f000008 + 1)) - 1];
m0002bf(current, ref p2);
goto Label_000B;
Label_011A:
m0002c2(current, ref f000025, ref num);
goto Label_000B;
Label_012C:
if (p0.IndexOf(current) != (p0.Count - 1))
{
throw new Exception(string.Format("IEND chunk does not appear to be the last chunk in the image.", new object[0]));
}
MemoryStream stream = new MemoryStream(f000025, 0, num);
c0000cf ccf = new c0000cf(stream);
m000140(ref ccf);
goto Label_000B;
Label_017C:
f000010 = ((int) current.f00001b) - 1;
for (int i = 0; i < current.f00001b; i++)
{
f00001d[i] = (byte) current.f0001f4.ReadByte();
}
goto Label_000B;
}
Label_01D6:
return f000008;
}
private static Color[] m0002c3(byte[] p0, struct01c7 p1, struct01de p2)
{
int num3;
int num4;
int num5;
int num6;
int num7;
int num8;
byte num9;
int num10;
int num12;
int num13;
int num14;
int num = (int) (p1.f00001b * p1.f00005f);
int index = 0;
if (num > f000051.Length)
{
f000051 = new Color[num];
}
MemoryStream stream = new MemoryStream(p0);
switch (p1.f00001d)
{
case 0:
if (p1.f000008 >= 8)
{
if (p1.f000008 != 8)
{
while (((num3 = stream.ReadByte()) > -1) && (index < num))
{
num8 = 0;
while (num8 < p1.f00001b)
{
num9 = (byte) stream.ReadByte();
stream.ReadByte();
f000051[index] = new Color(num9, num9, num9);
index++;
num8++;
}
}
break;
}
while (((num3 = stream.ReadByte()) > -1) && (index < num))
{
for (num8 = 0; num8 < p1.f00001b; num8++)
{
float num15 = stream.ReadByte();
num9 = (byte) ((num15 / ((float) ((((int) 1) << p1.f000008) - 1))) * 255f);
f000051[index] = new Color(num9, num9, num9);
index++;
}
}
break;
}
num12 = 8 / p1.f000008;
num13 = ((int) 0xff) >> (8 - p1.f000008);
while (((num3 = stream.ReadByte()) > -1) && (index < num))
{
num8 = 0;
while (num8 < (((ulong) p1.f00001b) / ((long) num12)))
{
num10 = stream.ReadByte();
num14 = 8 - p1.f000008;
while (num14 >= 0)
{
float num11 = (num10 & (num13 << (num14 & 0x1f))) >> num14;
num9 = (byte) ((num11 / ((float) ((((int) 1) << p1.f000008) - 1))) * 255f);
f000051[index] = new Color(num9, num9, num9);
index++;
num14 -= p1.f000008;
}
num8++;
}
}
break;
case 2:
if (p1.f000008 <= 8)
{
while (((num3 = stream.ReadByte()) > -1) && (index < num))
{
num8 = 0;
while (num8 < p1.f00001b)
{
f000051[index] = new Color((byte) stream.ReadByte(), (byte) stream.ReadByte(), (byte) stream.ReadByte());
index++;
num8++;
}
}
break;
}
num4 = ((int) ((p1.f00001b * p1.f000008) * 3)) + 1;
num5 = 0;
num6 = 0;
num7 = 0;
while (((num3 = stream.ReadByte()) > -1) && (index < num))
{
num8 = 0;
while (num8 < p1.f00001b)
{
num5 = stream.ReadByte();
stream.ReadByte();
num6 = stream.ReadByte();
stream.ReadByte();
num7 = stream.ReadByte();
stream.ReadByte();
f000051[index] = new Color((byte) num5, (byte) num6, (byte) num7);
index++;
num8++;
}
}
break;
case 3:
num12 = 8 / p1.f000008;
num13 = ((int) 0xff) >> (8 - p1.f000008);
while (((num3 = stream.ReadByte()) > -1) && (index < num))
{
num8 = 0;
while (num8 < (((ulong) p1.f00001b) / ((long) num12)))
{
num10 = stream.ReadByte();
for (num14 = 8 - p1.f000008; num14 >= 0; num14 -= p1.f000008)
{
int num16 = (num10 & (num13 << (num14 & 0x1f))) >> num14;
struct01df structdf = p2.f000018[num16];
f000051[index] = new Color(structdf.f000008, structdf.f00001d, structdf.f000025);
if (f000010 >= num16)
{
f000051[index].A = f00001d[num16];
}
index++;
}
num8++;
}
}
break;
case 4:
switch (p1.f000008)
{
case 8:
while (((num3 = stream.ReadByte()) > -1) && (index < num))
{
num8 = 0;
while (num8 < p1.f00001b)
{
num9 = (byte) stream.ReadByte();
f000051[index] = new Color(num9, num9, num9, (byte) stream.ReadByte());
index++;
num8++;
}
}
break;
case 0x10:
while (((num3 = stream.ReadByte()) > -1) && (index < num))
{
num8 = 0;
while (num8 < p1.f00001b)
{
num9 = (byte) stream.ReadByte();
stream.ReadByte();
f000051[index] = new Color(num9, num9, num9, (byte) stream.ReadByte());
stream.ReadByte();
index++;
num8++;
}
}
break;
}
break;
case 6:
switch (p1.f000008)
{
case 8:
while (((num3 = stream.ReadByte()) > -1) && (index < num))
{
num8 = 0;
while (num8 < p1.f00001b)
{
f000051[index] = new Color((byte) stream.ReadByte(), (byte) stream.ReadByte(), (byte) stream.ReadByte(), (byte) stream.ReadByte());
index++;
num8++;
}
}
break;
case 0x10:
{
num4 = ((int) ((p1.f00001b * p1.f000008) * 3)) + 1;
num5 = 0;
num6 = 0;
num7 = 0;
int num17 = 0;
while (((num3 = stream.ReadByte()) > -1) && (index < num))
{
for (num8 = 0; num8 < p1.f00001b; num8++)
{
num5 = stream.ReadByte();
stream.ReadByte();
num6 = stream.ReadByte();
stream.ReadByte();
num7 = stream.ReadByte();
stream.ReadByte();
num17 = stream.ReadByte();
stream.ReadByte();
f000051[index] = new Color((byte) num5, (byte) num6, (byte) num7, (byte) num17);
index++;
}
}
break;
}
}
break;
}
stream.Close();
return f000051;
}
private static void m0002bf(struct01c6 p0, ref struct01de p1)
{
uint num = ((uint) p0.f0001f4.Length) / 3;
if ((num * 3) == p0.f0001f4.Length)
{
for (int i = 0; i < num; i++)
{
struct01df structdf = new struct01df();
structdf.f000008 = (byte) p0.f0001f4.ReadByte();
structdf.f00001d = (byte) p0.f0001f4.ReadByte();
structdf.f000025 = (byte) p0.f0001f4.ReadByte();
p1.f000018[i] = structdf;
}
}
}
