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(PB2): implemented method 1 compression.

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This commit is contained in:
morkt
2018-05-22 17:39:21 +04:00
parent d1c90447b3
commit 83361c5e44
1 changed files with 44 additions and 1 deletions
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45
ArcFormats/Cmvs/ImagePB2.cs
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@@ -109,10 +109,10 @@ namespace GameRes.Formats.Purple
{
switch (m_info.Type)
{
case 1: UnpackV1(); break;
case 2: UnpackV2(); break;
case 4: UnpackJbp (0x20, m_offset1); break;
case 6: UnpackV6(); break;
case 1:
case 3:
case 5:
case 7:
@@ -120,6 +120,49 @@ namespace GameRes.Formats.Purple
}
}
void UnpackV1 ()
{
const int block_size = 8;
int width = (int)m_info.Width;
int height = (int)m_info.Height;
int pixel_size = m_info.BPP / 8;
var block_data = new byte[m_stride * height];
LzssResetFrame();
LzssUnpack (m_offset1, m_offset2, block_data, block_data.Length);
m_output = new byte[block_data.Length];
int w_block_count = (width + (block_size - 1)) / block_size;
int h_block_count = (height + (block_size - 1)) / block_size;
int src = 0;
for (int c = 0; c < pixel_size; ++c)
{
int dst = c;
for (int block_y = 0; block_y < h_block_count; block_y++)
{
int y = block_y * block_size;
int dst_row = dst;
int block_height = Math.Min (height - y, block_size);
for (int block_x = 0; block_x < w_block_count; block_x++)
{
int x = block_x * block_size;
int dst_pixel = dst_row;
int block_width = Math.Min (width - x, block_size);
for (int i = 0; i < block_height; i++)
{
for (int j = 0; j < block_width; j++)
{
m_output[dst_pixel + j * pixel_size] = block_data[src++];
}
dst_pixel += m_stride;
}
dst_row += block_size * pixel_size;
}
dst += m_stride * block_size;
}
}
}
void UnpackV2 ()
{
m_output = new byte[m_stride * (int)m_info.Height];