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implemented PT1 images version 3.

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This commit is contained in:
morkt 2015-11-11 20:52:19 +04:00
parent 58718944ab
commit 5cfa6243c8
1 changed files with 59 additions and 44 deletions
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101
ArcFormats/Ffa/ImagePT1.cs
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@ -51,7 +51,7 @@ namespace GameRes.Formats.Ffa
public Pt1Format ()
{
Signatures = new uint[] { 2, 1, 0 };
Signatures = new uint[] { 3, 2, 1, 0 };
}
public override void Write (Stream file, ImageData image)
@ -64,7 +64,7 @@ namespace GameRes.Formats.Ffa
using (var input = new ArcView.Reader (stream))
{
int type = input.ReadInt32();
if (type < 0 || type > 2)
if (type < 0 || type > 3)
return null;
if (-1 != input.ReadInt32())
return null;
@ -81,7 +81,7 @@ namespace GameRes.Formats.Ffa
Height = height,
OffsetX = x,
OffsetY = y,
BPP = 24,
BPP = 3 == type ? 32 : 24,
Type = type,
PackedSize = comp_size,
UnpackedSize = uncomp_size
@ -91,51 +91,84 @@ namespace GameRes.Formats.Ffa
public override ImageData Read (Stream stream, ImageMetaData info)
{
var meta = info as Pt1MetaData;
if (null == meta)
throw new ArgumentException ("Pt1Format.Read should be supplied with Pt1MetaData", "info");
stream.Position = 0x20;
var meta = (Pt1MetaData)info;
var reader = new Reader (stream, meta);
reader.Unpack();
return ImageData.Create (meta, PixelFormats.Bgr24, null, reader.Data);
return ImageData.Create (meta, reader.Format, null, reader.Data);
}
internal class Reader
{
byte[] m_input;
byte[] m_output;
byte[] m_alpha_packed;
int m_type;
int m_width;
int m_height;
int m_stride;
int m_left = 0;
public PixelFormat Format { get; private set; }
public byte[] Data { get { return m_output; } }
public Reader (Stream input, Pt1MetaData info)
{
m_type = info.Type;
m_input = new byte[info.PackedSize+8];
input.Position = 0x20;
if ((int)info.PackedSize != input.Read (m_input, 0, (int)info.PackedSize))
throw new InvalidFormatException ("Unexpected end of file");
m_width = (int)info.Width;
m_height = (int)info.Height;
m_output = new byte[info.UnpackedSize];
m_stride = m_width*3;
if (3 == m_type)
{
Format = PixelFormats.Bgra32;
using (var reader = new ArcView.Reader (input))
{
int packed_size = reader.ReadInt32();
m_alpha_packed = new byte[packed_size];
if (packed_size != input.Read (m_alpha_packed, 0, packed_size))
throw new EndOfStreamException();
}
}
else
{
Format = PixelFormats.Bgr24;
}
}
public byte[] Unpack ()
{
switch (m_type)
{
case 3: UnpackV3(); break;
case 2: UnpackV2(); break;
case 1: UnpackV1(); break;
case 0: UnpackV0(); break;
case 0: UnpackV0 (m_input, m_output); break;
}
return m_output;
}
void UnpackV3 ()
{
UnpackV2();
int total = m_width * m_height;
var alpha = new byte[total];
UnpackV0 (m_alpha_packed, alpha);
var pixels = new byte[total * 4];
int src = 0;
int dst = 0;
for (int i = 0; i < total; ++i)
{
pixels[dst++] = m_output[src++];
pixels[dst++] = m_output[src++];
pixels[dst++] = m_output[src++];
pixels[dst++] = alpha[i];
}
m_output = pixels;
}
uint edx;
byte ch;
int src;
@ -213,7 +246,6 @@ namespace GameRes.Formats.Ffa
}
for (int i = 1; i < m_height; ++i)
{
dst += m_left; // XXX add edi, [ebp+arg_8]
ReadNext();
_CF = edx & 1;
edx >>= 1;
@ -349,37 +381,20 @@ namespace GameRes.Formats.Ffa
Buffer.BlockCopy (m_output, dst - m_stride, m_output, dst, 3);
dst += 3;
}
else if (4 == ebx)
{
ah = sub_4225EA();
al = (byte)(ah + m_output[dst - m_stride - 3]);
m_output[dst++] = al;
ReadNext();
ah = sub_4225EA();
al = (byte)(ah + m_output[dst - m_stride - 3]);
m_output[dst++] = al;
ReadNext();
ah = sub_4225EA();
al = (byte)(ah + m_output[dst - m_stride - 3]);
m_output[dst++] = al;
}
else
{
int off = dst - m_stride;
if (4 == ebx) off -= 3;
ah = sub_4225EA();
al = (byte)(ah + m_output[dst - m_stride]);
m_output[dst++] = al;
m_output[dst++] = (byte)(ah + m_output[off++]);
ReadNext();
ah = sub_4225EA();
al = (byte)(ah + m_output[dst - m_stride]);
m_output[dst++] = al;
m_output[dst++] = (byte)(ah + m_output[off++]);
ReadNext();
ah = sub_4225EA();
al = (byte)(ah + m_output[dst - m_stride]);
m_output[dst++] = al;
m_output[dst++] = (byte)(ah + m_output[off++]);
}
}
}
@ -571,29 +586,29 @@ namespace GameRes.Formats.Ffa
}
}
void UnpackV0 ()
void UnpackV0 (byte[] input, byte[] output)
{
int src = 0;
int dst = 0;
byte[] frame = new byte[0x1000]; // word_461A28
PopulateLzssFrame (frame);
int ebp = 0xfee;
while (src < m_input.Length)
while (src < input.Length)
{
byte ah = m_input[src++];
byte ah = input[src++];
for (int mask = 1; mask != 0x100; mask <<= 1)
{
if (0 != (ah & mask))
{
byte al = m_input[src++];
byte al = input[src++];
frame[ebp++] = al;
ebp &= 0xfff;
m_output[dst++] = al;
output[dst++] = al;
}
else
{
int offset = m_input[src++];
int count = m_input[src++];
int offset = input[src++];
int count = input[src++];
offset |= (count & 0xf0) << 4;
count = (count & 0x0f) + 3;
for (int i = 0; i < count; ++i)
@ -602,10 +617,10 @@ namespace GameRes.Formats.Ffa
frame[ebp++] = al;
offset &= 0xfff;
ebp &= 0xfff;
m_output[dst++] = al;
output[dst++] = al;
}
}
if (dst >= m_output.Length)
if (dst >= output.Length)
return;
}
}