//! \file ImagePGD.cs //! \date Sat Feb 13 13:56:06 2016 //! \brief Image format used by subsidiaries of Amuse Craft (former Softpal). // // Copyright (C) 2016 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 // deal in the Software without restriction, including without limitation the // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or // sell copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS // IN THE SOFTWARE. // using System; using System.ComponentModel.Composition; using System.IO; using System.Windows.Media; using GameRes.Utility; namespace GameRes.Formats.Softpal { [Export(typeof(ImageFormat))] public class Pgd11Format : ImageFormat { public override string Tag { get { return "PGD/11_C"; } } public override string Description { get { return "Image format used by Softpal subsidiaries"; } } public override uint Signature { get { return 0x1C4547; } } // 'GE\x1C' public Pgd11Format () { Extensions = new string[] { "pgd" }; } public override ImageMetaData ReadMetaData (IBinaryStream stream) { var header = stream.ReadHeader (0x20); if (!header.AsciiEqual (0x1C, "11_C")) return null; return new ImageMetaData { Width = header.ToUInt32 (0x0C), Height = header.ToUInt32 (0x10), OffsetX = header.ToInt32 (4), OffsetY = header.ToInt32 (8), BPP = 32, }; } public override ImageData Read (IBinaryStream stream, ImageMetaData info) { using (var reader = new PgdReader (stream, 0x20)) { var planes = reader.Unpack11(); var pixels = new byte[planes.Length]; int plane_size = (int)info.Width*(int)info.Height; int b_src = 0; int g_src = b_src+plane_size; int r_src = g_src+plane_size; int alpha_src = r_src+plane_size; int dst = 0; while (dst < pixels.Length) { pixels[dst++] = planes[b_src++]; pixels[dst++] = planes[g_src++]; pixels[dst++] = planes[r_src++]; pixels[dst++] = planes[alpha_src++]; } return ImageData.Create (info, PixelFormats.Bgra32, null, pixels); } } public override void Write (Stream file, ImageData image) { throw new NotImplementedException ("Pgd11Format.Write not implemented"); } } [Export(typeof(ImageFormat))] public class Pgd00Format : ImageFormat { public override string Tag { get { return "PGD/00_C"; } } public override string Description { get { return "Image format used by Softpal subsidiaries"; } } public override uint Signature { get { return 0; } } public Pgd00Format () { Extensions = new string[] { "pgd" }; } public override ImageMetaData ReadMetaData (IBinaryStream stream) { var header = stream.ReadHeader (0x24); if (!header.AsciiEqual (0x18, "00_C")) return null; return new ImageMetaData { Width = header.ToUInt32 (8), Height = header.ToUInt32 (12), OffsetX = header.ToInt32 (0), OffsetY = header.ToInt32 (4), BPP = 32, }; } public override ImageData Read (IBinaryStream stream, ImageMetaData info) { using (var reader = new PgdReader (stream, 0x1C)) { var data = reader.Unpack00(); using (var tga = new BinMemoryStream (data, stream.Name)) { var tga_info = Tga.ReadMetaData (tga); if (null == tga_info) throw new InvalidFormatException(); tga.Position = 0; return Tga.Read (tga, tga_info); } } } public override void Write (Stream file, ImageData image) { throw new NotImplementedException ("Pgd00Format.Write not implemented"); } } [Export(typeof(ImageFormat))] public class PgdTgaFormat : TgaFormat { public override string Tag { get { return "PGD/TGA"; } } public override string Description { get { return "Image format used by Softpal subsidiaries"; } } public override uint Signature { get { return 0; } } public override bool CanWrite { get { return false; } } public PgdTgaFormat () { Extensions = new string[] { "pgd" }; } public override ImageMetaData ReadMetaData (IBinaryStream stream) { var header = stream.ReadHeader (0x2A); int x = header.ToInt32 (0); int y = header.ToInt32 (4); if (Math.Abs (x) > 0x2000 || Math.Abs (y) > 0x2000) return null; uint width = header.ToUInt32 (8); uint height = header.ToUInt32 (12); if (0 == width || 0 == height || width != header.ToUInt16 (0x24) || height != header.ToUInt16 (0x26)) return null; stream.Position = 0x18; var tga_info = base.ReadMetaData (stream); if (null == tga_info) return null; tga_info.OffsetX = x; tga_info.OffsetY = y; return tga_info; } public override ImageData Read (IBinaryStream stream, ImageMetaData info) { using (var mem = new StreamRegion (stream.AsStream, 0x18, true)) using (var tga = new BinaryStream (mem, stream.Name)) return base.Read (tga, info); } public override void Write (Stream file, ImageData image) { throw new NotImplementedException ("PgdTgaFormat.Write not implemented"); } } internal class PgdGeMetaData : ImageMetaData { public int Method; } [Export(typeof(ImageFormat))] public class PgdGeFormat : ImageFormat { public override string Tag { get { return "PGD/GE"; } } public override string Description { get { return "Image format used by Softpal subsidiaries"; } } public override uint Signature { get { return 0x204547; } } // 'GE ' public PgdGeFormat () { Extensions = new string[] { "pgd" }; } public override ImageMetaData ReadMetaData (IBinaryStream stream) { var header = stream.ReadHeader (0x20); return new PgdGeMetaData { Width = header.ToUInt32 (0x0C), Height = header.ToUInt32 (0x10), OffsetX = header.ToInt32 (4), OffsetY = header.ToInt32 (8), BPP = 32, Method = header.ToUInt16 (0x1C), }; } public override ImageData Read (IBinaryStream stream, ImageMetaData info) { using (var reader = new PgdReader (stream, (PgdGeMetaData)info)) { var pixels = reader.UnpackGE(); return ImageData.Create (info, reader.Format, null, pixels); } } public override void Write (Stream file, ImageData image) { throw new NotImplementedException ("PgdGeFormat.Write not implemented"); } } internal class PgdIncMetaData : ImageMetaData { public string BaseName; } [Export(typeof(ImageFormat))] public class Pgd3Format : ImageFormat { public override string Tag { get { return "PGD3"; } } public override string Description { get { return "Softpal incremental image format"; } } public override uint Signature { get { return 0x33444750; } } // 'PGD3' public Pgd3Format () { Extensions = new string[] { "pgd" }; Signatures = new uint[] { 0x33444750, 0x32444750 }; // 'PGD3', 'PGD2' } public override ImageMetaData ReadMetaData (IBinaryStream stream) { var header = stream.ReadHeader (0x30); string base_name = header.GetCString (0xE, 0x22); if (string.IsNullOrEmpty (base_name)) return null; return new PgdIncMetaData { OffsetX = header.ToUInt16 (4), OffsetY = header.ToUInt16 (6), Width = header.ToUInt16 (8), Height = header.ToUInt16 (0xA), BPP = header.ToUInt16 (0xC), BaseName = base_name, }; } static readonly Lazy<ImageFormat> PalFormat = new Lazy<ImageFormat> (() => FindByTag ("PGD/GE")); public override ImageData Read (IBinaryStream stream, ImageMetaData info) { var meta = (PgdIncMetaData)info; string dir_name = VFS.GetDirectoryName (meta.FileName); string name = VFS.CombinePath (dir_name, meta.BaseName); PgdGeMetaData base_info; byte[] image, overlay; PixelFormat format; using (var base_file = VFS.OpenBinaryStream (name)) { base_info = PalFormat.Value.ReadMetaData (base_file) as PgdGeMetaData; if (null == base_info) throw new InvalidFormatException ("Invalid baseline image format"); if (meta.OffsetX + meta.Width > base_info.Width || meta.OffsetY + meta.Height > base_info.Height) throw new InvalidFormatException ("Incompatible baseline image dimensions"); base_info.FileName = name; using (var reader = new PgdReader (base_file, base_info)) { image = reader.UnpackGE(); format = reader.Format; } } using (var reader = new PgdReader (stream, meta)) overlay = reader.UnpackOverlay(); int overlay_bpp = meta.BPP / 8; int base_bpp = format.BitsPerPixel / 8; int dst = (meta.OffsetY * (int)base_info.Width + meta.OffsetX) * base_bpp; int gap = (int)(base_info.Width - meta.Width) * base_bpp; int src = 0; bool apply_alpha = overlay_bpp == 4 && base_bpp == 4; for (uint y = 0; y < meta.Height; ++y) { for (uint x = 0; x < meta.Width; ++x) { image[dst ] ^= overlay[src ]; image[dst+1] ^= overlay[src+1]; image[dst+2] ^= overlay[src+2]; if (apply_alpha) image[dst+3] ^= overlay[src+3]; dst += base_bpp; src += overlay_bpp; } dst += gap; } base_info.FileName = meta.FileName; return ImageData.Create (base_info, format, null, image); } public override void Write (Stream file, ImageData image) { throw new NotImplementedException ("Pgd3Format.Write not implemented"); } } internal sealed class PgdReader : IDisposable { IBinaryStream m_input; byte[] m_output; int m_width; int m_height; int m_bpp; int m_method; public PixelFormat Format { get; private set; } public PgdReader (IBinaryStream input, int position) { m_input = input; m_input.Position = position; int unpacked_size = m_input.ReadInt32(); m_input.ReadInt32(); // packed_size m_output = new byte[unpacked_size]; } public PgdReader (IBinaryStream input, PgdGeMetaData info) : this (input, 0x20) { m_width = (int)info.Width; m_height = (int)info.Height; m_method = info.Method; } public PgdReader (IBinaryStream input, PgdIncMetaData info) : this (input, 0x30) { m_width = (int)info.Width; m_height = (int)info.Height; m_bpp = info.BPP; } public byte[] UnpackGE () { UnpackGePre(); switch (m_method) { case 1: return PostProcess1 (m_output); case 2: return PostProcess2 (m_output); case 3: return PostProcess3 (m_output); default: throw new NotSupportedException ("Not supported PGD compression"); } } public byte[] UnpackOverlay () { UnpackGePre(); return PostProcessPal (m_output, 0, m_bpp / 8); } public byte[] Unpack00 () { return Unpack (3000); } public byte[] Unpack11 () { return Unpack (0xFFC); } byte[] Unpack (int look_behind) { int dst = 0; int ctl = 2; while (dst < m_output.Length) { ctl >>= 1; if (1 == ctl) { ctl = m_input.ReadByte() | 0x100; } int count; if (0 != (ctl & 1)) { int src = m_input.ReadUInt16(); count = m_input.ReadByte(); if (dst > look_behind) src += dst - look_behind; Binary.CopyOverlapped (m_output, src, dst, count); } else { count = m_input.ReadByte(); m_input.Read (m_output, dst, count); } dst += count; } return m_output; } byte[] UnpackGePre () { int dst = 0; int ctl = 2; while (dst < m_output.Length) { ctl >>= 1; if (1 == ctl) ctl = m_input.ReadByte() | 0x100; int count; if (0 != (ctl & 1)) { int offset = m_input.ReadUInt16(); count = offset & 7; if (0 == (offset & 8)) { count = count << 8 | m_input.ReadByte(); } count += 4; offset >>= 4; Binary.CopyOverlapped (m_output, dst - offset, dst, count); } else { count = m_input.ReadByte(); m_input.Read (m_output, dst, count); } dst += count; } return m_output; } byte[] PostProcess1 (byte[] input) { Format = PixelFormats.Bgra32; var output = new byte[input.Length]; int plane_size = input.Length / 4; int a_src = 0; int r_src = plane_size; int g_src = 2 * plane_size; int b_src = 3 * plane_size; int dst = 0; for (int i = 0; i < plane_size; ++i) { output[dst++] = input[b_src+i]; output[dst++] = input[g_src+i]; output[dst++] = input[r_src+i]; output[dst++] = input[a_src+i]; } return output; } byte[] PostProcess2 (byte[] input) { Format = PixelFormats.Bgr24; int stride = m_width * 3; int segment_size = m_width * m_height / 4; int src0 = 0; int src1 = segment_size; int src2 = segment_size + src1; var output = new byte[stride * m_height]; int dst = 0; int[] points = { 0, 1, m_width, m_width + 1 }; for (int y = m_height / 2; y > 0; --y) { for (int x = m_width / 2; x > 0; --x) { sbyte i0 = (sbyte)input[src0]; sbyte i1 = (sbyte)input[src1]; int b = 226 * i0; int g = -43 * i0 - 89 * i1; int r = 179 * i1; ++src0; ++src1; for (int i = 0; i < points.Length; ++i) { int offset = points[i]; int base_value = input[src2+offset] << 7; offset = dst + 3 * offset; output[offset++] = Clamp ((base_value + b) >> 7); output[offset++] = Clamp ((base_value + g) >> 7); output[offset++] = Clamp ((base_value + r) >> 7); } src2 += 2; dst += 6; } src2 += m_width; dst += stride; } return output; } static byte Clamp (int val) { if (val > 255) val = 255; else if (val < 0) val = 0; return (byte)val; } byte[] PostProcess3 (byte[] input) { int bpp = LittleEndian.ToUInt16 (input, 2); if (32 == bpp) Format = PixelFormats.Bgra32; else if (24 == bpp) Format = PixelFormats.Bgr24; else throw new InvalidFormatException(); m_width = LittleEndian.ToUInt16 (input, 4); m_height = LittleEndian.ToUInt16 (input, 6); return PostProcessPal (input, 8, bpp / 8); } byte[] PostProcessPal (byte[] input, int src, int pixel_size) { int stride = m_width * pixel_size; var output = new byte[m_height * stride]; int ctl = src; src += m_height; int dst = 0; for (int row = 0; row < m_height; ++row) { byte c = input[ctl++]; if (0 != (c & 1)) { int prev = dst; Buffer.BlockCopy (input, src, output, dst, pixel_size); src += pixel_size; dst += pixel_size; int count = stride - pixel_size; while (count --> 0) { output[dst++] = (byte)(output[prev++] - input[src++]); } } else if (0 != (c & 2)) { int prev = dst - stride; int count = stride; while (count --> 0) { output[dst++] = (byte)(output[prev++] - input[src++]); } } else { Buffer.BlockCopy (input, src, output, dst, pixel_size); dst += pixel_size; src += pixel_size; int prev = dst - stride; int count = stride - pixel_size; while (count --> 0) { output[dst] = (byte)((output[prev++] + output[dst-pixel_size]) / 2 - input[src++]); ++dst; } } } return output; } #region IDisposable Members public void Dispose () { } #endregion } }