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(AkbReader.Unpack): simplified if/else branching.

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This commit is contained in:
morkt 2015-11-29 09:05:03 +04:00
parent dea492a27f
commit da51f3d7b2
1 changed files with 21 additions and 30 deletions
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51
ArcFormats/Silky/ImageAKB.cs
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@ -100,41 +100,32 @@ namespace GameRes.Formats.Silky
public byte[] Unpack ()
{
byte[] image;
if (m_info.InnerWidth != 0 && m_info.InnerHeight != 0)
if (0 == m_info.InnerWidth || 0 == m_info.InnerHeight)
return CreateBackground();
m_input.Position = 0x20;
int inner_stride = m_info.InnerWidth * m_pixel_size;
var pixels = new byte[m_info.InnerHeight * inner_stride];
using (var lz = new LzssStream (m_input, LzssMode.Decompress, true))
{
m_input.Position = 0x20;
int inner_stride = m_info.InnerWidth * m_pixel_size;
var pixels = new byte[m_info.InnerHeight * inner_stride];
using (var lz = new LzssStream (m_input, LzssMode.Decompress, true))
for (int pos = pixels.Length - inner_stride; pos >= 0; pos -= inner_stride)
{
for (int dst = pixels.Length - inner_stride; dst >= 0; dst -= inner_stride)
{
if (inner_stride != lz.Read (pixels, dst, inner_stride))
throw new InvalidFormatException();
}
}
RestoreDelta (pixels, inner_stride);
if (m_info.InnerWidth != m_info.Width || m_info.InnerHeight != m_info.Height)
{
image = CreateBackground();
int src = 0;
int dst = m_info.OffsetY * Stride + m_info.OffsetX * m_pixel_size;
for (int y = 0; y < m_info.InnerHeight; ++y)
{
Buffer.BlockCopy (pixels, src, image, dst, inner_stride);
dst += Stride;
src += inner_stride;
}
}
else
{
image = pixels;
if (inner_stride != lz.Read (pixels, pos, inner_stride))
throw new InvalidFormatException();
}
}
else
RestoreDelta (pixels, inner_stride);
if (m_info.InnerWidth == m_info.Width && m_info.InnerHeight == m_info.Height)
return pixels;
var image = CreateBackground();
int src = 0;
int dst = m_info.OffsetY * Stride + m_info.OffsetX * m_pixel_size;
for (int y = 0; y < m_info.InnerHeight; ++y)
{
image = CreateBackground();
Buffer.BlockCopy (pixels, src, image, dst, inner_stride);
dst += Stride;
src += inner_stride;
}
return image;
}