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another variation of PGD images.
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morkt
parent
c75cd84b42
commit
6435e2b5a5
@ -178,7 +178,7 @@ namespace GameRes.Formats.Softpal
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public override ImageData Read (Stream stream, ImageMetaData info)
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{
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using (var tga = new StreamRegion (stream, 0x18))
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using (var tga = new StreamRegion (stream, 0x18, true))
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return base.Read (tga, info);
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}
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@ -188,12 +188,65 @@ namespace GameRes.Formats.Softpal
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}
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}
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internal class PgdGeMetaData : ImageMetaData
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{
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public int Method;
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}
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[Export(typeof(ImageFormat))]
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public class PgdGeFormat : ImageFormat
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{
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public override string Tag { get { return "PGD/GE"; } }
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public override string Description { get { return "Image format used by Softpal subsidiaries"; } }
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public override uint Signature { get { return 0x204547; } } // 'GE '
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public PgdGeFormat ()
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{
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Extensions = new string[] { "pgd" };
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}
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public override ImageMetaData ReadMetaData (Stream stream)
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{
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var header = new byte[0x20];
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if (header.Length != stream.Read (header, 0, header.Length))
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return null;
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return new PgdGeMetaData
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{
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Width = LittleEndian.ToUInt32 (header, 0x0C),
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Height = LittleEndian.ToUInt32 (header, 0x10),
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OffsetX = LittleEndian.ToInt32 (header, 4),
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OffsetY = LittleEndian.ToInt32 (header, 8),
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BPP = 32,
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Method = LittleEndian.ToUInt16 (header, 0x1C),
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};
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}
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public override ImageData Read (Stream stream, ImageMetaData info)
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{
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stream.Position = 0x20;
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using (var reader = new PgdReader (stream, (PgdGeMetaData)info))
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{
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var pixels = reader.UnpackGE();
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return ImageData.Create (info, reader.Format, null, pixels);
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}
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}
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public override void Write (Stream file, ImageData image)
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{
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throw new NotImplementedException ("PgdGeFormat.Write not implemented");
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}
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}
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internal sealed class PgdReader : IDisposable
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{
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BinaryReader m_input;
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byte[] m_output;
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int m_width;
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int m_height;
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int m_method;
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public byte[] Data { get { return m_output; } }
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public byte[] Data { get { return m_output; } }
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public PixelFormat Format { get; private set; }
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public PgdReader (Stream input, int position)
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{
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@ -204,6 +257,25 @@ namespace GameRes.Formats.Softpal
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m_output = new byte[unpacked_size];
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}
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public PgdReader (Stream input, PgdGeMetaData info) : this (input, 0x20)
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{
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m_width = (int)info.Width;
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m_height = (int)info.Height;
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m_method = info.Method;
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}
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public byte[] UnpackGE ()
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{
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UnpackGePre();
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switch (m_method)
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{
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case 1: return PostProcess1 (m_output);
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case 2: return PostProcess2 (m_output);
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case 3: return PostProcess3 (m_output);
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default: throw new NotSupportedException ("Not supported PGD compression");
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}
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}
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public byte[] Unpack00 ()
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{
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return Unpack (3000);
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@ -244,6 +316,168 @@ namespace GameRes.Formats.Softpal
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return m_output;
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}
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byte[] UnpackGePre ()
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{
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int dst = 0;
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int ctl = 2;
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while (dst < m_output.Length)
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{
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ctl >>= 1;
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if (1 == ctl)
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ctl = m_input.ReadByte() | 0x100;
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int count;
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if (0 != (ctl & 1))
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{
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int offset = m_input.ReadUInt16();
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if (0 != (offset & 8))
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{
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count = (offset & 7) + 4;
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}
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else
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{
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count = ((offset & 7) << 8 | m_input.ReadByte()) + 4;
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}
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offset >>= 4;
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Binary.CopyOverlapped (m_output, dst - offset, dst, count);
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}
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else
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{
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count = m_input.ReadByte();
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m_input.Read (m_output, dst, count);
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}
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dst += count;
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}
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return m_output;
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}
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byte[] PostProcess1 (byte[] input)
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{
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Format = PixelFormats.Bgra32;
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var output = new byte[input.Length];
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int plane_size = input.Length / 4;
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int a_src = 0;
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int r_src = plane_size;
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int g_src = 2 * plane_size;
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int b_src = 3 * plane_size;
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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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output[dst++] = input[b_src+i];
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output[dst++] = input[g_src+i];
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output[dst++] = input[r_src+i];
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output[dst++] = input[a_src+i];
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}
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return output;
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}
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byte[] PostProcess2 (byte[] input)
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{
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Format = PixelFormats.Bgr24;
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int stride = m_width * 3;
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int segment_size = m_width * m_height / 4;
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int src0 = 0;
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int src1 = segment_size;
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int src2 = segment_size + src1;
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var output = new byte[stride * m_height];
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int dst = 0;
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int[] points = { 0, 1, m_width, m_width + 1 };
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for (int y = m_height / 2; y > 0; --y)
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{
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for (int x = m_width / 2; x > 0; --x)
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{
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sbyte i0 = (sbyte)input[src0];
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sbyte i1 = (sbyte)input[src1];
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int b = 226 * i0;
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int g = -43 * i0 - 89 * i1;
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int r = 179 * i1;
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++src0;
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++src1;
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for (int i = 0; i < points.Length; ++i)
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{
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int offset = points[i];
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int base_value = input[src2+offset] << 7;
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offset = dst + 3 * offset;
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output[offset++] = Clamp ((base_value + b) >> 7);
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output[offset++] = Clamp ((base_value + g) >> 7);
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output[offset++] = Clamp ((base_value + r) >> 7);
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}
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src2 += 2;
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dst += 6;
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}
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src2 += m_width;
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dst += stride;
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}
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return output;
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}
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static byte Clamp (int val)
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{
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if (val > 255) val = 255;
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else if (val < 0) val = 0;
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return (byte)val;
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}
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byte[] PostProcess3 (byte[] input)
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{
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int bpp = LittleEndian.ToUInt16 (input, 2);
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if (32 == bpp)
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Format = PixelFormats.Bgra32;
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else if (24 == bpp)
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Format = PixelFormats.Bgr24;
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else
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throw new InvalidFormatException();
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int pixel_size = bpp / 8;
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int width = LittleEndian.ToUInt16 (input, 4);
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int height = LittleEndian.ToUInt16 (input, 6);
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int stride = width * pixel_size;
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var output = new byte[height * stride];
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int ctl = 8;
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int src = ctl + height;
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int dst = 0;
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for (int row = 0; row < height; ++row)
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{
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int c = input[ctl++];
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if (0 != (c & 1))
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{
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int prev = dst;
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Buffer.BlockCopy (input, src, output, dst, pixel_size);
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src += pixel_size;
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dst += pixel_size;
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int count = stride - pixel_size;
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while (count --> 0)
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{
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output[dst++] = (byte)(output[prev++] - input[src++]);
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}
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}
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else if (0 != (c & 2))
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{
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int prev = dst - stride;
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int count = stride;
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while (count --> 0)
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{
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output[dst++] = (byte)(output[prev++] - input[src++]);
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}
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}
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else
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{
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Buffer.BlockCopy (input, src, output, dst, pixel_size);
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dst += pixel_size;
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src += pixel_size;
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int prev = dst - stride;
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int count = stride - pixel_size;
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while (count --> 0)
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{
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output[dst] = (byte)((output[prev++] + output[dst-pixel_size]) / 2 - input[src++]);
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++dst;
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}
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}
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}
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return output;
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}
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#region IDisposable Members
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bool _disposed = false;
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public void Dispose ()
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@ -749,6 +749,7 @@ Houmon Hanbai ~Otona no Omocha Irimasen ka?~<br/>
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</td></tr>
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<tr class="odd"><td>*.pac</td><td>-<br/><tt>PAC</tt></td><td>No</td><td rowspan="2">Unison Shift</td><td rowspan="2">
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Maruhi Jinjibu Ryoujokuka<br/>
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Shikotama Slave ~Aruji de Shimai na Tenshi to Akuma~<br/>
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Unity Marriage ~Futari no Hanayome~<br/>
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</td></tr>
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<tr class="odd"><td>*.pgd</td><td><tt>GE</tt></td><td>No</td></tr>
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