public virtual bool Load(Stream s)
{
BinaryReader br = new BinaryReader(s);
byte[] magic = br.ReadBytes(2);
if (magic[0] != (byte)'S' || magic[1] != (byte)'P')
{
return false;
}
m_version = br.ReadInt16();
if (m_version != 0x100 && m_version != 0x101 &&
m_version != 0x200 && m_version != 0x201)
{
return false;
}
m_palCount = br.ReadInt16();
if (m_version >= 0x200)
m_rgbaCount = br.ReadInt16();
List<RawImage> images = new List<RawImage>();
if (m_palCount > 0)
{
for (int p = 0; p < m_palCount; p++)
{
ushort w = br.ReadUInt16();
ushort h = br.ReadUInt16();
int pixelCount = w * h;
if (pixelCount > 0)
{
byte[] data;
if (m_version >= 0x201)
{
data = new byte[pixelCount];
uint next = 0;
ushort encoded;
encoded = br.ReadUInt16();
while (next < pixelCount && encoded > 0)
{
byte c = br.ReadByte();
encoded--;
if (c == 0)
{
byte len = br.ReadByte();
encoded--;
if (len == 0)
len = 1;
if (next + len > pixelCount)
return false;
for (int i = 0; i < len; i++)
data[next] = 0;
next += len;
}
else
{
data[next++] = c;
}
}
if (next != pixelCount || encoded > 0)
return false;
}
else
{
data = br.ReadBytes(pixelCount);
}
palData.Add(data);
images.Add(new RawImage() { Height = h, Width = w, RawData = data });
}
}
}
if (m_rgbaCount > 0)
{
for (int p = 0; p < m_rgbaCount; p++)
{
ushort w = br.ReadUInt16();
ushort h = br.ReadUInt16();
byte[] texData = new byte[w * h * 4];
for (int i = 0; i < texData.Length; i += 4)
{
// RGBA to ARGB
texData[i + 1] = br.ReadByte();
texData[i + 2] = br.ReadByte();
texData[i + 3] = br.ReadByte();
texData[i + 0] = br.ReadByte();
}
images.Add(new RawImage() { Height = h, Width = w, RawData = texData });
}
}
m_images = images.ToArray();
if (m_version >= 0x101)
{
m_palette = new Palette();
m_palette.Read(br);
RemapPalette();
}
return true;
}
public virtual void SetPalette(Palette p)
{
m_palette = p;
RemapPalette();
}
