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(Csystem): another image format.
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parent
2ee030aa84
commit
9610424516
@ -111,8 +111,10 @@ namespace GameRes.Formats.Cyberworks
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else
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UnpackV6 (bits_size, data_offset, data_offset + header[6]);
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}
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else if (0 == bits_size)
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CopyV0 (unpacked_size);
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else
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throw new InvalidFormatException();
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UnpackV1 (bits_size, unpacked_size);
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}
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void CopyV0 (int data_size)
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@ -152,6 +154,38 @@ namespace GameRes.Formats.Cyberworks
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}
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}
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void UnpackV1 (int alpha_size, int rgb_size)
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{
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var alpha_map = m_input.ReadBytes (alpha_size);
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if (alpha_map.Length != alpha_size)
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throw new InvalidFormatException();
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Info.BPP = 32;
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int plane_size = (int)Info.Width * (int)Info.Height;
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m_output = new byte[plane_size * 4];
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int bit = 1;
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int bit_src = 0;
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int dst = 0;
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for (int i = 0; i < plane_size; ++i)
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{
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if ((bit & alpha_map[bit_src]) != 0)
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{
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m_input.Read (m_output, dst, 3);
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m_output[dst+3] = 0xFF;
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}
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else
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m_output[dst+3] = 0;
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dst += 4;
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if (0x80 == bit)
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{
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++bit_src;
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bit = 1;
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}
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else
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bit <<= 1;
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}
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}
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void UnpackV2 (int offset1, int rgb_offset)
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{
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Info.BPP = 24;
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