mirror of
https://github.com/crskycode/GARbro.git
synced 2024-12-24 03:44:13 +08:00
876 lines
38 KiB
C#
876 lines
38 KiB
C#
//! \file ImageRIP.cs
|
|
//! \date Mon Nov 07 17:01:32 2016
|
|
//! \brief rUGP image format.
|
|
//
|
|
// 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.Rugp
|
|
{
|
|
internal class RioMetaData : ImageMetaData
|
|
{
|
|
public uint ObjectOffset;
|
|
public CRip Rip;
|
|
}
|
|
|
|
[Export(typeof(ImageFormat))]
|
|
public class RipFormat : ImageFormat
|
|
{
|
|
public override string Tag { get { return "RIP"; } }
|
|
public override string Description { get { return "rUGP compressed image format"; } }
|
|
public override uint Signature { get { return 0; } }
|
|
|
|
public RipFormat ()
|
|
{
|
|
Extensions = new string[] { "rip", "sia" };
|
|
}
|
|
|
|
// signature set to 0 because all serialized rUGP objects have same signature.
|
|
|
|
public override ImageMetaData ReadMetaData (IBinaryStream file)
|
|
{
|
|
if (file.Signature != CRioArchive.ObjectSignature)
|
|
return null;
|
|
var rio = new CRioArchive (file);
|
|
uint signature;
|
|
var class_ref = rio.LoadRioTypeCore (out signature);
|
|
CRip img;
|
|
if ("CRip007" == class_ref)
|
|
img = new CRip007();
|
|
else if ("CRip" == class_ref)
|
|
img = new CRip();
|
|
else
|
|
return null;
|
|
return img.ReadMetaData (rio);
|
|
}
|
|
|
|
public override ImageData Read (IBinaryStream file, ImageMetaData info)
|
|
{
|
|
var meta = (RioMetaData)info;
|
|
file.Position = meta.ObjectOffset;
|
|
var arc = new CRioArchive (file);
|
|
var img = meta.Rip;
|
|
img.Deserialize (arc);
|
|
return ImageData.Create (info, img.Format, null, img.Pixels);
|
|
}
|
|
|
|
public override void Write (Stream file, ImageData image)
|
|
{
|
|
throw new System.NotImplementedException ("RipFormat.Write not implemented");
|
|
}
|
|
}
|
|
|
|
internal class CRip : CObject
|
|
{
|
|
protected int Version;
|
|
protected int m_width;
|
|
protected int m_height;
|
|
protected int m_x;
|
|
protected int m_y;
|
|
protected int m_w;
|
|
protected int m_h;
|
|
protected int m_flags; // field_30
|
|
protected byte[] m_pixels;
|
|
|
|
public PixelFormat Format { get; protected set; }
|
|
public byte[] Pixels { get { return m_pixels; } }
|
|
|
|
public override void Deserialize (CRioArchive arc)
|
|
{
|
|
Version = arc.ReadInt32();
|
|
m_x = arc.ReadUInt16();
|
|
m_y = arc.ReadUInt16();
|
|
m_width = arc.ReadUInt16();
|
|
m_height = arc.ReadUInt16();
|
|
m_w = arc.ReadUInt16();
|
|
m_h = arc.ReadUInt16();
|
|
m_flags = arc.ReadInt32();
|
|
int size = arc.ReadInt32();
|
|
arc.ReadInt32(); // field_34
|
|
var data = arc.ReadBytes (size);
|
|
m_pixels = Uncompress (data);
|
|
}
|
|
|
|
public virtual ImageMetaData ReadMetaData (CRioArchive arc)
|
|
{
|
|
uint object_pos = (uint)arc.Input.Position;
|
|
arc.ReadInt32();
|
|
int x = arc.ReadUInt16();
|
|
int y = arc.ReadUInt16();
|
|
uint w1 = arc.ReadUInt16();
|
|
uint h1 = arc.ReadUInt16();
|
|
uint w2 = arc.ReadUInt16();
|
|
uint h2 = arc.ReadUInt16();
|
|
int flags = arc.ReadInt32() & 0xFF;
|
|
if (flags < 1 || flags > 3)
|
|
return null;
|
|
uint width, height;
|
|
if (3 == flags)
|
|
{
|
|
width = w2;
|
|
height = h2;
|
|
}
|
|
else
|
|
{
|
|
width = w1;
|
|
height = h1;
|
|
}
|
|
return new RioMetaData
|
|
{
|
|
OffsetX = x,
|
|
OffsetY = y,
|
|
Width = width,
|
|
Height = height,
|
|
BPP = 1 == flags ? 8 : 32,
|
|
ObjectOffset = object_pos,
|
|
Rip = this,
|
|
};
|
|
}
|
|
|
|
byte[] Uncompress (byte[] data)
|
|
{
|
|
int flags = m_flags & 0xFF;
|
|
if (1 == flags)
|
|
return UncompressSia (data);
|
|
byte[] pixels = null;
|
|
if (2 == flags)
|
|
{
|
|
using (var mem = new MemoryStream (data))
|
|
using (var input = new MsbBitStream (mem))
|
|
{
|
|
Format = PixelFormats.Bgr32;
|
|
pixels = new byte[4 * m_width * m_height];
|
|
switch ((m_flags >> 16) & 0xFF)
|
|
{
|
|
case 1: UncompressRgb1 (input, pixels); break;
|
|
case 2: UncompressRgb2 (input, pixels); break;
|
|
case 3: UncompressRgb3 (input, pixels); break;
|
|
}
|
|
}
|
|
}
|
|
else if (3 == flags)
|
|
{
|
|
if (2 == ((m_flags >> 16) & 0xFF))
|
|
{
|
|
Format = PixelFormats.Bgra32;
|
|
pixels = new byte[4 * m_w * m_h];
|
|
UncompressRgba (data, pixels);
|
|
}
|
|
}
|
|
if (null == pixels)
|
|
throw new InvalidFormatException();
|
|
return pixels;
|
|
}
|
|
|
|
byte[] UncompressSia (byte[] input)
|
|
{
|
|
var output = new byte[m_width * m_height];
|
|
Format = PixelFormats.Gray8;
|
|
int src = 0;
|
|
int stride = m_width;
|
|
for (int y = 0; y < m_height; ++y)
|
|
{
|
|
byte color = 0;
|
|
int width = m_width;
|
|
int dst = y * stride;
|
|
while (width > 0)
|
|
{
|
|
int count = input[src++];
|
|
if (count > 0)
|
|
{
|
|
width -= count;
|
|
for (int i = 0; i < count; ++i)
|
|
output[dst++] = color;
|
|
}
|
|
if (width > 0 && src < input.Length)
|
|
{
|
|
color = input[src++];
|
|
}
|
|
}
|
|
}
|
|
return output;
|
|
}
|
|
|
|
void UncompressRgb1 (IBitStream input, byte[] output)
|
|
{
|
|
int stride = m_width * 4;
|
|
int rgb = 0;
|
|
for (int dst_row = output.Length - stride; dst_row >= 0; dst_row -= stride)
|
|
{
|
|
int dst = dst_row;
|
|
for (int x = 0; x < m_width; ++x)
|
|
{
|
|
if (input.GetNextBit() != 0)
|
|
{
|
|
int b = ReadLong (input, rgb);
|
|
int g = ReadLong (input, rgb >> 8);
|
|
int r = ReadLong (input, rgb >> 16);
|
|
rgb = r << 16 | g << 8 | b;
|
|
}
|
|
LittleEndian.Pack (rgb, output, dst);
|
|
dst += 4;
|
|
}
|
|
}
|
|
}
|
|
|
|
void UncompressRgb2 (IBitStream input, byte[] output)
|
|
{
|
|
throw new NotImplementedException ("CRip.UncompressRgb2 not implemented.");
|
|
}
|
|
|
|
void UncompressRgb3 (IBitStream input, byte[] output)
|
|
{
|
|
int stride = m_width * 4;
|
|
int rgb = 0;
|
|
for (int dst_row = output.Length - stride; dst_row >= 0; dst_row -= stride)
|
|
{
|
|
int dst = dst_row;
|
|
for (int x = 0; x < m_width; ++x)
|
|
{
|
|
if (input.GetNextBit() != 0)
|
|
{
|
|
int b = ReadLong (input, rgb) + 3;
|
|
int g = ReadShort (input, rgb >> 8) + 1;
|
|
int r = ReadLong (input, rgb >> 16) + 3;
|
|
rgb = r << 16 | g << 8 | b;
|
|
}
|
|
LittleEndian.Pack (rgb, output, dst);
|
|
dst += 4;
|
|
}
|
|
}
|
|
}
|
|
|
|
void UncompressRgba (byte[] input, byte[] output)
|
|
{
|
|
int src = input.ToInt32 (0);
|
|
using (var mem = new MemoryStream (input, 4, src - 4))
|
|
using (var bits = new MsbBitStream (mem))
|
|
{
|
|
int dst = 0;
|
|
for (int y = 0; y < m_h; ++y)
|
|
{
|
|
int rgb = 0;
|
|
int alpha = 0;
|
|
int x = 0;
|
|
while (x < m_w)
|
|
{
|
|
int len = input[src++];
|
|
if (alpha != 0)
|
|
{
|
|
for (int i = 0; i < len; ++i)
|
|
{
|
|
if (bits.GetNextBit() != 0)
|
|
{
|
|
int b = ReadABits (bits, rgb) + 3;
|
|
int g = ReadABits (bits, rgb >> 8) + 3;
|
|
int r = ReadABits (bits, rgb >> 16) + 3;
|
|
rgb = r << 16 | g << 8 | b;
|
|
}
|
|
LittleEndian.Pack (rgb | alpha << 24, output, dst);
|
|
dst += 4;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
dst += 4 * len;
|
|
}
|
|
x += len;
|
|
if (x >= m_w)
|
|
break;
|
|
if (bits.GetNextBit() != 0)
|
|
alpha = (bits.GetBits (7) << 1) + 1;
|
|
else if (bits.GetNextBit() != 0)
|
|
alpha = 0xFF;
|
|
else
|
|
alpha = 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
int ReadLong (IBitStream input, int prev)
|
|
{
|
|
prev &= 0xFC;
|
|
if ((prev >> 2) == 0)
|
|
{
|
|
if (input.GetNextBit() == 0)
|
|
return prev;
|
|
else if (input.GetNextBit() == 0)
|
|
return input.GetBits (6) << 2;
|
|
else if (input.GetNextBit() == 0)
|
|
return 4;
|
|
else if (input.GetNextBit() == 0)
|
|
return 8;
|
|
else
|
|
return 12;
|
|
}
|
|
else if ((prev >> 2) == 1)
|
|
{
|
|
if (input.GetNextBit() == 0)
|
|
return input.GetNextBit() << 2;
|
|
else if (input.GetNextBit() == 0)
|
|
return input.GetBits (6) << 2;
|
|
else if (input.GetNextBit() == 0)
|
|
return 8;
|
|
else if (input.GetNextBit() == 0)
|
|
return 12;
|
|
else
|
|
return 16;
|
|
}
|
|
else if ((prev >> 2) == 0x3F)
|
|
{
|
|
if (input.GetNextBit() == 0)
|
|
return 0xFC;
|
|
else if (input.GetNextBit() == 0)
|
|
return input.GetBits (6) << 2;
|
|
else if (input.GetNextBit() != 0)
|
|
return 0xF4 + (-input.GetNextBit() & 0xFC);
|
|
else
|
|
return 0xF8;
|
|
}
|
|
else
|
|
{
|
|
if (input.GetNextBit() == 0)
|
|
{
|
|
if (input.GetNextBit() == 0)
|
|
return prev;
|
|
return input.GetBits (6) << 2;
|
|
}
|
|
if (input.GetNextBit() == 0)
|
|
{
|
|
if (input.GetNextBit() != 0)
|
|
return prev - 4;
|
|
else
|
|
return prev + 4;
|
|
}
|
|
if (input.GetNextBit() == 0)
|
|
{
|
|
if (input.GetNextBit() != 0)
|
|
return prev - 8;
|
|
else
|
|
return prev + 8;
|
|
}
|
|
switch (input.GetBits (2))
|
|
{
|
|
case 0: return Math.Min (prev + 16, 0xFC);
|
|
case 1: return Math.Max (prev - 16, 0);
|
|
case 2: return Math.Min (prev + 24, 0xFC);
|
|
default: return Math.Max (prev - 24, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
int ReadShort (IBitStream input, int prev)
|
|
{
|
|
prev &= 0xFE;
|
|
if (input.GetNextBit() == 0)
|
|
{
|
|
if (input.GetNextBit() == 0)
|
|
return prev;
|
|
else
|
|
return input.GetBits (6) << 2;
|
|
}
|
|
else if (input.GetNextBit() == 0)
|
|
{
|
|
if (input.GetNextBit() == 0)
|
|
return prev + 2;
|
|
else
|
|
return prev - 2;
|
|
}
|
|
else if (input.GetNextBit() == 0)
|
|
{
|
|
if (input.GetNextBit() == 0)
|
|
return prev + 4;
|
|
else
|
|
return prev - 4;
|
|
}
|
|
else
|
|
{
|
|
switch (input.GetBits (2))
|
|
{
|
|
case 0: return Math.Min (prev + 8, 0xFE);
|
|
case 1: return Math.Max (prev - 8, 0);
|
|
case 2: return Math.Min (prev + 12, 0xFE);
|
|
default: return Math.Max (prev - 12, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
int ReadABits (IBitStream input, int prev)
|
|
{
|
|
prev &= 0xFC;
|
|
if (input.GetNextBit() == 0)
|
|
{
|
|
if (input.GetNextBit() == 0)
|
|
return prev;
|
|
else
|
|
return input.GetBits (6) << 2;
|
|
}
|
|
else if (input.GetNextBit() == 0)
|
|
{
|
|
if (input.GetNextBit() == 0)
|
|
return prev + 4;
|
|
else
|
|
return prev - 4;
|
|
}
|
|
else if (input.GetNextBit() == 0)
|
|
{
|
|
if (input.GetNextBit() == 0)
|
|
return prev + 8;
|
|
else
|
|
return prev - 8;
|
|
}
|
|
else
|
|
{
|
|
switch (input.GetBits (2))
|
|
{
|
|
case 0: return Math.Min (prev + 16, 0xFC);
|
|
case 1: return Math.Max (prev - 16, 0);
|
|
case 2: return Math.Min (prev + 24, 0xFC);
|
|
default: return Math.Max (prev - 24, 0);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
internal class CRip007 : CRip
|
|
{
|
|
byte[] CompressInfo;
|
|
CObject field_4C;
|
|
|
|
public bool HasAlpha { get { return ((m_flags & 0xFF) - 2) == 1; } }
|
|
|
|
public override void Deserialize (CRioArchive arc)
|
|
{
|
|
Version = arc.ReadInt32();
|
|
m_width = arc.ReadUInt16();
|
|
m_height = arc.ReadUInt16();
|
|
m_x = arc.ReadUInt16();
|
|
m_y = arc.ReadUInt16();
|
|
m_w = arc.ReadUInt16();
|
|
m_h = arc.ReadUInt16();
|
|
m_flags = arc.ReadInt32();
|
|
CompressInfo = arc.ReadBytes (7);
|
|
if (arc.GetObjectSchema() >= 2)
|
|
field_4C = arc.ReadRioReference ("CSbm");
|
|
int size = arc.ReadInt32();
|
|
arc.ReadInt32(); // field_3C
|
|
var data = arc.ReadBytes (size);
|
|
m_pixels = Uncompress (data);
|
|
Format = HasAlpha ? PixelFormats.Bgra32 : PixelFormats.Bgr32;
|
|
}
|
|
|
|
public override ImageMetaData ReadMetaData (CRioArchive arc)
|
|
{
|
|
uint object_pos = (uint)arc.Input.Position;
|
|
arc.ReadInt32();
|
|
uint w = arc.ReadUInt16();
|
|
uint h = arc.ReadUInt16();
|
|
return new RioMetaData
|
|
{
|
|
Width = w,
|
|
Height = h,
|
|
BPP = 32,
|
|
ObjectOffset = object_pos,
|
|
Rip = this,
|
|
};
|
|
}
|
|
|
|
byte[] Uncompress (byte[] data)
|
|
{
|
|
using (var input = new MemoryStream (data))
|
|
using (var bits = new MsbBitStream (input))
|
|
{
|
|
var pixels = new byte[4 * m_width * m_height];
|
|
if (HasAlpha)
|
|
UncompressRgba (bits, pixels);
|
|
else
|
|
UncompressRgb (bits, pixels);
|
|
return pixels;
|
|
}
|
|
}
|
|
|
|
void UncompressRgb (IBitStream input, byte[] output)
|
|
{
|
|
int stride = m_width * 4;
|
|
int q = CompressInfo[0];
|
|
int b_bits = CompressInfo[4];
|
|
int g_bits = CompressInfo[5];
|
|
int r_bits = CompressInfo[6];
|
|
bool is_bgr676 = 6 == b_bits && 7 == g_bits && 6 == r_bits;
|
|
int b_shift = 8 - b_bits;
|
|
int g_shift = 16 - g_bits;
|
|
int r_shift = 24 - r_bits;
|
|
int baseline = 0xFF >> b_bits | (0xFF >> g_bits | (0xFF >> r_bits | 0xFF00) << 8) << 8;
|
|
{
|
|
for (int y = 0; y < m_height; ++y)
|
|
{
|
|
int rgb = 0, rgb_ = 0;
|
|
int dst = y * stride;
|
|
int x = 0;
|
|
while (x < m_width)
|
|
{
|
|
int count = GetInt (input);
|
|
x += count;
|
|
do
|
|
{
|
|
if (input.GetNextBit() > 0)
|
|
{
|
|
rgb = LittleEndian.ToInt32 (output, dst - stride);
|
|
if (rgb != 0)
|
|
{
|
|
rgb -= baseline;
|
|
}
|
|
rgb_ = rgb;
|
|
}
|
|
else
|
|
{
|
|
int r = 0, g = 0, b = 0;
|
|
if (input.GetNextBit() > 0)
|
|
{
|
|
g = GetSigned (input);
|
|
}
|
|
int b_inc = 0;
|
|
if (input.GetNextBit() > 0)
|
|
{
|
|
bool sign = input.GetNextBit() > 0;
|
|
int v = GetInt (input);
|
|
b_inc = tblQuantTransfer[q, v];
|
|
if (sign)
|
|
b_inc = -b_inc;
|
|
}
|
|
int r_inc = 0;
|
|
if (input.GetNextBit() > 0)
|
|
{
|
|
bool sign = input.GetNextBit() > 0;
|
|
int v = GetInt (input);
|
|
r_inc = tblQuantTransfer[q, v];
|
|
if (sign)
|
|
r_inc = -r_inc;
|
|
}
|
|
int gg = g;
|
|
if (is_bgr676)
|
|
gg >>= 1;
|
|
if (CompressInfo[3] != 0)
|
|
{
|
|
int c1 = (0xFF >> b_shift) & (int)((uint)rgb_ >> b_shift);
|
|
c1 = -c1;
|
|
if (gg >= c1)
|
|
{
|
|
int c2 = (0xFF >> b_shift) + c1;
|
|
c1 = c2;
|
|
if (gg <= c2)
|
|
c1 = gg;
|
|
}
|
|
b = c1 + b_inc;
|
|
c1 = (0xFF0000 >> r_shift) & (int)((uint)rgb_ >> r_shift);
|
|
c1 = -c1;
|
|
if (gg >= c1)
|
|
{
|
|
int c2 = (0xFF0000 >> r_shift) + c1;
|
|
c1 = c2;
|
|
if (gg <= c2)
|
|
c1 = gg;
|
|
}
|
|
r = c1 + r_inc;
|
|
}
|
|
else
|
|
{
|
|
b = gg + b_inc;
|
|
r = gg + r_inc;
|
|
}
|
|
rgb_ += (b << b_shift) + (r << r_shift) + (g << g_shift);
|
|
rgb = rgb_;
|
|
}
|
|
if (rgb != 0)
|
|
rgb += baseline;
|
|
LittleEndian.Pack (rgb, output, dst);
|
|
dst += 4;
|
|
--count;
|
|
}
|
|
while (count > 0);
|
|
if (x >= m_width)
|
|
break;
|
|
|
|
count = GetInt (input);
|
|
x += count;
|
|
while (count --> 0)
|
|
{
|
|
LittleEndian.Pack (rgb, output, dst);
|
|
dst += 4;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void UncompressRgba (IBitStream input, byte[] output)
|
|
{
|
|
int stride = 4 * m_width;
|
|
int q = CompressInfo[0];
|
|
int b_bits = CompressInfo[4];
|
|
int g_bits = CompressInfo[5];
|
|
int r_bits = CompressInfo[6];
|
|
int b_shift = 8 - b_bits;
|
|
int g_shift = 16 - g_bits;
|
|
int r_shift = 24 - r_bits;
|
|
int dst_pos = m_y * stride + m_x * 4;
|
|
int baseline = 0xFF >> b_bits | (0xFF >> g_bits | (0xFF >> r_bits << 8)) << 8;
|
|
var line_buf = new int[m_w];
|
|
for (int y = 0; y < m_h; ++y)
|
|
{
|
|
int alpha = 0;
|
|
int rgb = 0;
|
|
int repeat_count = 0;
|
|
bool repeat = true;
|
|
int dst = dst_pos + y * stride;
|
|
int x = 0;
|
|
int chunk_size = 0;
|
|
while (x < m_w)
|
|
{
|
|
if (0 == chunk_size)
|
|
{
|
|
int alpha_inc = 0;
|
|
if (input.GetNextBit() > 0)
|
|
{
|
|
alpha_inc = GetSigned (input);
|
|
}
|
|
alpha += alpha_inc;
|
|
if (0 == alpha || 31 == alpha)
|
|
{
|
|
chunk_size = GetInt (input);
|
|
}
|
|
}
|
|
if (alpha != 0)
|
|
{
|
|
if (31 == alpha)
|
|
--chunk_size;
|
|
if (0 == repeat_count)
|
|
{
|
|
repeat_count = GetInt (input);
|
|
repeat = !repeat;
|
|
}
|
|
--repeat_count;
|
|
if (!repeat)
|
|
{
|
|
if (input.GetNextBit() > 0)
|
|
{
|
|
rgb = line_buf[x];
|
|
}
|
|
else
|
|
{
|
|
int g = 0;
|
|
if (input.GetNextBit() > 0)
|
|
{
|
|
g = GetSigned (input);
|
|
}
|
|
int b_inc = 0;
|
|
if (input.GetNextBit() > 0)
|
|
{
|
|
bool sign = input.GetNextBit() > 0;
|
|
int v = GetInt (input);
|
|
b_inc = tblQuantTransfer[q, v];
|
|
if (sign)
|
|
b_inc = -b_inc;
|
|
}
|
|
int r_inc = 0;
|
|
if (input.GetNextBit() > 0)
|
|
{
|
|
bool sign = input.GetNextBit() > 0;
|
|
int v = GetInt (input);
|
|
r_inc = tblQuantTransfer[q, v];
|
|
if (sign)
|
|
r_inc = -r_inc;
|
|
}
|
|
int c1 = (0xFF >> b_shift) & (int)((uint)rgb >> b_shift);
|
|
c1 = -c1;
|
|
if (g >= c1)
|
|
{
|
|
int c2 = (0xFF >> b_shift) + c1;
|
|
c1 = g;
|
|
if (g > c2)
|
|
c1 = c2;
|
|
}
|
|
int b = c1 + b_inc;
|
|
c1 = (0xFF0000 >> r_shift) & (int)((uint)rgb >> r_shift);
|
|
c1 = -c1;
|
|
if (g >= c1)
|
|
{
|
|
int c2 = (0xFF0000 >> r_shift) + c1;
|
|
c1 = g;
|
|
if (g > c2)
|
|
c1 = c2;
|
|
}
|
|
int r = c1 + r_inc;
|
|
rgb += (b << b_shift) + (r << r_shift) + (g << g_shift);
|
|
}
|
|
}
|
|
uint pixel = (uint)(baseline + rgb);
|
|
if (31 == alpha)
|
|
pixel |= 0xFF000000u;
|
|
else
|
|
pixel |= (uint)(alpha << 27);
|
|
LittleEndian.Pack (pixel, output, dst);
|
|
dst += 4;
|
|
line_buf[x++] = rgb;
|
|
}
|
|
else
|
|
{
|
|
dst += 4 * chunk_size;
|
|
x += chunk_size;
|
|
chunk_size = 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static int GetInt (IBitStream input)
|
|
{
|
|
int n = 1;
|
|
while (input.GetNextBit() > 0)
|
|
{
|
|
n <<= 1;
|
|
n |= input.GetNextBit();
|
|
}
|
|
return n;
|
|
}
|
|
|
|
static int GetSigned (IBitStream input)
|
|
{
|
|
bool sign = input.GetNextBit() > 0;
|
|
int n = GetInt (input);
|
|
return sign ? -n : n;
|
|
}
|
|
|
|
static readonly byte[,] tblQuantTransfer = {
|
|
{
|
|
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
|
|
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F,
|
|
0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F,
|
|
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
|
|
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F,
|
|
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
|
|
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F,
|
|
0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F,
|
|
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
|
|
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F,
|
|
}, {
|
|
0x00, 0x01, 0x02, 0x04, 0x06, 0x09, 0x0C, 0x0F, 0x13, 0x16, 0x19, 0x1C, 0x1F, 0x23, 0x27, 0x2B,
|
|
0x30, 0x34, 0x38, 0x3C, 0x40, 0x44, 0x48, 0x4C, 0x50, 0x54, 0x58, 0x5C, 0x60, 0x64, 0x68, 0x6C,
|
|
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x01, 0x02, 0x02, 0x03, 0x03, 0x04, 0x04, 0x04, 0x05, 0x05, 0x05, 0x06, 0x06, 0x06, 0x07,
|
|
0x07, 0x07, 0x07, 0x08, 0x08, 0x08, 0x09, 0x09, 0x09, 0x0A, 0x0A, 0x0A, 0x0B, 0x0B, 0x0B, 0x0C,
|
|
0x0C, 0x0C, 0x0C, 0x0D, 0x0D, 0x0D, 0x0D, 0x0E, 0x0E, 0x0E, 0x0E, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F,
|
|
0x10, 0x10, 0x10, 0x10, 0x11, 0x11, 0x11, 0x11, 0x12, 0x12, 0x12, 0x12, 0x13, 0x13, 0x13, 0x13,
|
|
0x14, 0x14, 0x14, 0x14, 0x15, 0x15, 0x15, 0x15, 0x16, 0x16, 0x16, 0x16, 0x17, 0x17, 0x17, 0x17,
|
|
0x18, 0x18, 0x18, 0x18, 0x19, 0x19, 0x19, 0x19, 0x1A, 0x1A, 0x1A, 0x1A, 0x1B, 0x1B, 0x1B, 0x1B,
|
|
0x1C, 0x1C, 0x1C, 0x1C, 0x1D, 0x1D, 0x1D, 0x1D, 0x1E, 0x1E, 0x1E, 0x1E, 0x1F, 0x1F, 0x1F, 0x1F,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
|
|
}, {
|
|
0x00, 0x01, 0x02, 0x04, 0x08, 0x0C, 0x10, 0x14, 0x18, 0x1B, 0x1E, 0x22, 0x26, 0x2A, 0x2E, 0x32,
|
|
0x36, 0x3A, 0x3E, 0x42, 0x46, 0x4B, 0x50, 0x55, 0x5A, 0x5F, 0x64, 0x69, 0x6E, 0x73, 0x78, 0x7D,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x01, 0x02, 0x02, 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04, 0x05, 0x05, 0x05, 0x05,
|
|
0x06, 0x06, 0x06, 0x06, 0x07, 0x07, 0x07, 0x07, 0x08, 0x08, 0x08, 0x09, 0x09, 0x09, 0x0A, 0x0A,
|
|
0x0A, 0x0A, 0x0B, 0x0B, 0x0B, 0x0B, 0x0C, 0x0C, 0x0C, 0x0C, 0x0D, 0x0D, 0x0D, 0x0D, 0x0E, 0x0E,
|
|
0x0E, 0x0E, 0x0F, 0x0F, 0x0F, 0x0F, 0x10, 0x10, 0x10, 0x10, 0x11, 0x11, 0x11, 0x11, 0x12, 0x12,
|
|
0x12, 0x12, 0x13, 0x13, 0x13, 0x13, 0x14, 0x14, 0x14, 0x14, 0x14, 0x15, 0x15, 0x15, 0x15, 0x15,
|
|
0x16, 0x16, 0x16, 0x16, 0x16, 0x17, 0x17, 0x17, 0x17, 0x17, 0x18, 0x18, 0x18, 0x18, 0x18, 0x19,
|
|
0x19, 0x19, 0x19, 0x19, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1B, 0x1B, 0x1B, 0x1B, 0x1B, 0x1C, 0x1C,
|
|
0x1C, 0x1C, 0x1C, 0x1D, 0x1D, 0x1D, 0x1D, 0x1D, 0x1E, 0x1E, 0x1E, 0x1E, 0x1E, 0x1F, 0x1F, 0x1F,
|
|
}, {
|
|
0x00, 0x01, 0x03, 0x07, 0x0C, 0x10, 0x15, 0x1A, 0x20, 0x25, 0x2A, 0x30, 0x36, 0x3C, 0x42, 0x48,
|
|
0x50, 0x54, 0x58, 0x5C, 0x60, 0x64, 0x68, 0x6C, 0x70, 0x74, 0x78, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x03, 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04,
|
|
0x05, 0x05, 0x05, 0x05, 0x05, 0x06, 0x06, 0x06, 0x06, 0x06, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
|
|
0x08, 0x08, 0x08, 0x08, 0x08, 0x09, 0x09, 0x09, 0x09, 0x09, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A,
|
|
0x0B, 0x0B, 0x0B, 0x0B, 0x0B, 0x0B, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0D, 0x0D, 0x0D, 0x0D,
|
|
0x0D, 0x0D, 0x0E, 0x0E, 0x0E, 0x0E, 0x0E, 0x0E, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F,
|
|
0x10, 0x10, 0x10, 0x10, 0x11, 0x11, 0x11, 0x11, 0x12, 0x12, 0x12, 0x12, 0x13, 0x13, 0x13, 0x13,
|
|
0x14, 0x14, 0x14, 0x14, 0x15, 0x15, 0x15, 0x15, 0x16, 0x16, 0x16, 0x16, 0x17, 0x17, 0x17, 0x17,
|
|
0x18, 0x18, 0x18, 0x18, 0x19, 0x19, 0x19, 0x19, 0x1A, 0x1A, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
|
|
}, {
|
|
0x00, 0x01, 0x03, 0x07, 0x0D, 0x13, 0x1A, 0x21, 0x28, 0x2F, 0x36, 0x3E, 0x46, 0x4E, 0x56, 0x5E,
|
|
0x68, 0x6A, 0x6C, 0x6E, 0x70, 0x72, 0x74, 0x76, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04,
|
|
0x04, 0x04, 0x04, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06,
|
|
0x06, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x09,
|
|
0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0B, 0x0B,
|
|
0x0B, 0x0B, 0x0B, 0x0B, 0x0B, 0x0B, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0D, 0x0D,
|
|
0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0E, 0x0E, 0x0E, 0x0E, 0x0E, 0x0E, 0x0E, 0x0E, 0x0F, 0x0F,
|
|
0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x10, 0x10, 0x11, 0x11, 0x12, 0x12, 0x13, 0x13,
|
|
0x14, 0x14, 0x15, 0x15, 0x16, 0x16, 0x17, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
|
|
}, {
|
|
0x00, 0x01, 0x04, 0x0A, 0x11, 0x18, 0x20, 0x28, 0x32, 0x3C, 0x46, 0x50, 0x5A, 0x64, 0x6E, 0x78,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
|
|
0x03, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05,
|
|
0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
|
|
0x07, 0x07, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x09, 0x09, 0x09, 0x09,
|
|
0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A,
|
|
0x0B, 0x0B, 0x0B, 0x0B, 0x0B, 0x0B, 0x0B, 0x0B, 0x0B, 0x0B, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C,
|
|
0x0C, 0x0C, 0x0C, 0x0C, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0E, 0x0E,
|
|
0x0E, 0x0E, 0x0E, 0x0E, 0x0E, 0x0E, 0x0E, 0x0E, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F,
|
|
}
|
|
};
|
|
}
|
|
}
|