public Sprite256(String filename)
{
try
{
using (FileStream fs = File.Open(filename, FileMode.Open))
using (BinaryReader br = new BinaryReader(fs))
{
fs.Seek(-4, SeekOrigin.End);
uint spriteCount = br.ReadUInt32() & 0x7FFFFFFF;
fs.Seek(0, SeekOrigin.Begin);
// read in the palette. 256 entries.
uint[] spritePalette = new uint[256];
for (int i = 0; i < 256; i++)
{
spritePalette[i] = br.ReadUInt32();
}
bOwnPalette = new Palette(spritePalette);
// read in the frames
for (int i = 0; i < spriteCount; i++)
{
int fWidth = br.ReadInt32();
int fHeight = br.ReadInt32();
int fDataSize = br.ReadInt32();
long posAfter = fs.Position + fDataSize;
unsafe
{
ushort *px = (ushort *)Marshal.AllocHGlobal(fWidth * fHeight * 2);
for (int k = 0; k < fWidth * fHeight; k++)
{
px[k] = 0;
}
ushort *px1 = px;
while (fDataSize > 0)
{
// read in the data
ushort ipx = br.ReadByte();
ipx |= (ushort)(ipx << 8);
ipx &= 0xC03F;
fDataSize -= 1;
if ((ipx & 0xC000) > 0)
{
if ((ipx & 0xC000) == 0x4000)
{
px1 += fWidth * (ipx & 0x3F);
}
else
{
px1 += (ipx & 0x3F);
}
}
else
{
for (int j = 0; j < (ipx & 0x3F); j++)
{
byte ss = br.ReadByte();
* px1++ = (ushort)((ushort)0xFF00 | ss);
}
fDataSize -= (ipx & 0x3F);
}
}
SpriteFrame sf = new SpriteFrame();
sf.Width = fWidth;
sf.Height = fHeight;
sf.Pixels = px;
Frames.Add(sf);
}
fs.Seek(posAfter, SeekOrigin.Begin);
}
}
}
catch (IOException)
{
throw;
//throw new FormatException("Failed to open the image.");
}
}
public Sprite16(String filename)
{
try
{
using (FileStream fs = File.Open(filename, FileMode.Open))
using (BinaryReader br = new BinaryReader(fs))
{
fs.Seek(-4, SeekOrigin.End);
uint spriteCount = br.ReadUInt32() & 0x7FFFFFFF;
fs.Seek(0, SeekOrigin.Begin);
// read in the frames
for (int i = 0; i < spriteCount; i++)
{
int fWidth = br.ReadInt32();
int fHeight = br.ReadInt32();
int fDataSize = br.ReadInt32();
long posAfter = fs.Position + fDataSize;
unsafe
{
ushort *px = (ushort *)Marshal.AllocHGlobal(fWidth * fHeight * 2);
for (int k = 0; k < fWidth * fHeight; k++)
{
px[k] = 0;
}
ushort *px1 = px;
while (fDataSize > 0)
{
// read in the data
ushort ipx = br.ReadByte();
ipx |= (ushort)(ipx << 8);
ipx &= 0xC03F;
fDataSize -= 1;
if ((ipx & 0xC000) > 0)
{
if ((ipx & 0xC000) == 0x4000)
{
px1 += fWidth * (ipx & 0x3F);
}
else
{
px1 += (ipx & 0x3F);
}
}
else
{
byte[] bytes = new byte[(ipx & 0x3F)];
br.Read(bytes, 0, bytes.Length);
for (int j = 0; j < bytes.Length; j++)
{
int alpha2;
alpha2 = (bytes[j] & 0x0F); alpha2 |= alpha2 << 4;
*px1++ = (ushort)((ushort)((alpha2 & 0xFF) << 8) | 0xFF);
if ((j != bytes.Length - 1) || ((bytes[bytes.Length - 1] & 0xF0) > 0))
{
alpha2 = (bytes[j] & 0xF0); alpha2 |= alpha2 >> 4;
*px1++ = (ushort)((ushort)((alpha2 & 0xFF) << 8) | 0xFF);
}
}
fDataSize -= (ipx & 0x3F);
}
}
SpriteFrame sf = new SpriteFrame();
sf.Width = fWidth;
sf.Height = fHeight;
sf.Pixels = px;
Frames.Add(sf);
}
fs.Seek(posAfter, SeekOrigin.Begin);
}
}
}
catch (IOException)
{
throw;
//throw new FormatException("Failed to open the image.");
}
}
