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(GBC): format variation.

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This commit is contained in:
morkt 2017-07-15 06:08:51 +04:00
parent cbab8b200a
commit b4ec3d229e
1 changed files with 125 additions and 1 deletions
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126
ArcFormats/Primel/ImageGBC.cs
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@ -2,7 +2,7 @@
//! \date Mon Oct 03 04:16:11 2016
//! \brief Primel the Adventure System resource archive.
//
// Copyright (C) 2016 by morkt
// Copyright (C) 2016-2017 by morkt
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
@ -97,6 +97,14 @@ namespace GameRes.Formats.Primel
}
public void Unpack ()
{
if (0x800 == (m_info.Flags & 0xFF00))
UnpackV2();
else
UnpackV1();
}
void UnpackV1 ()
{
m_input.Input.Position = 0x30;
int pixel_size = m_info.BPP / 8;
@ -148,6 +156,63 @@ namespace GameRes.Formats.Primel
}
}
void UnpackV2 ()
{
m_input.Input.Position = 0x30;
int pixel_size = m_info.BPP / 8;
int blocks_w = (int)(m_info.Width + 7) / 8;
int blocks_h = (int)(m_info.Height + 7) / 8;
short[,] block = new short[pixel_size, 64];
for (int by = 0; by < blocks_h; ++by)
{
int dst_line = by * 8 * m_stride;
for (int bx = 0; bx < blocks_w; ++bx)
{
int dst_block = dst_line + bx * 8 * pixel_size;
for (int i = 0; i < pixel_size; ++i)
{
for (int j = 0; j < 64; ++j)
block[i,j] = 0;
RestoreBlockV2 (block, i);
}
for (int y = 0; y < 8; ++y)
{
if (by + 1 == blocks_h && (by * 8 + y) >= m_info.Height)
break;
int src = y * 8;
int dst = dst_block + y * m_stride;
for (int x = 0; x < 8; ++x)
{
if (bx + 1 == blocks_w && (bx * 8 + x) >= m_info.Width)
break;
if (4 == pixel_size)
{
m_output[dst + x * 4 + 2] = (byte)block[0, src+x];
m_output[dst + x * 4 + 1] = (byte)block[1, src+x];
m_output[dst + x * 4] = (byte)block[2, src+x];
m_output[dst + x * 4 + 3] = (byte)block[3, src+x];
}
else if (3 == pixel_size)
{
m_output[dst + x * 3 + 2] = (byte)block[0, src+x];
m_output[dst + x * 3 + 1] = (byte)block[1, src+x];
m_output[dst + x * 3] = (byte)block[2, src+x];
}
else
{
var val = block[0, src+x];
m_output[dst + x] = (byte)val;
}
}
}
}
}
}
void RestoreBlock (short[,] block, int n)
{
int row = 8;
@ -168,6 +233,31 @@ namespace GameRes.Formats.Primel
}
}
void RestoreBlockV2 (short[,] block, int plane)
{
int skip;
for (int i = 0; i < 64; ++i)
{
int n = GetIntV2 (out skip);
if (n != 0)
block[plane, ZigzagOrder[i]] = (short)n;
else if (0 == skip)
break;
else
i += skip - 1;
}
for (int row = 0; row < 64; row += 8)
for (int x = 1; x < 8; ++x)
{
block[plane, row+x] += block[plane, row+x-1];
}
for (int row = 8; row < 64; row += 8)
for (int x = 0; x < 8; ++x)
{
block[plane, row+x] += block[plane, row-8+x];
}
}
int GetInt ()
{
int count = m_input.GetBits (4);
@ -194,6 +284,40 @@ namespace GameRes.Formats.Primel
}
}
int GetIntV2 (out int repeat)
{
int count = m_input.GetBits (4);
repeat = 0;
switch (count)
{
case 0:
repeat = 1;
while (repeat < 16 && 1 == m_input.GetNextBit())
++repeat;
if (16 == repeat)
repeat = 0;
return 0;
case 1: return 1;
case 2:
case 3:
case 4:
case 5:
case 6:
case 7:
return m_input.GetBits (count - 1) + (1 << (count - 1));
case 8: return -1;
case 9: return -2;
default:
return m_input.GetBits (count - 9) - (2 << (count - 9));
case -1: throw new EndOfStreamException();
}
}
bool _disposed = false;
public void Dispose ()
{