GARbro-mirror/Legacy/Rina/ImageRAD.cs
2019-01-04 06:50:20 +04:00

132 lines
4.5 KiB
C#

//! \file ImageRAD.cs
//! \date 2019 Jan 01
//! \brief Rina engine image format.
//
// Copyright (C) 2019 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.ComponentModel.Composition;
using System.IO;
using System.Windows.Media;
// [030620][Gipsy] Angel Gather
namespace GameRes.Formats.Rina
{
internal class RadMetaData : ImageMetaData
{
public bool IsCompressed;
}
[Export(typeof(ImageFormat))]
public class RadFormat : ImageFormat
{
public override string Tag { get { return "RAD"; } }
public override string Description { get { return "Rina engine image format"; } }
public override uint Signature { get { return 0x304152; } }
public RadFormat ()
{
Signatures = new uint[] { 0x304152, 0x444152 }; // 'RA0', 'RAD'
}
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
return new RadMetaData {
Width = 640, Height = 480, BPP = 24,
IsCompressed = file.Signature == 0x304152,
};
}
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
var meta = (RadMetaData)info;
file.Position = 4;
int stride = info.iWidth * 3;
var pixels = new byte[stride * info.iHeight];
if (meta.IsCompressed)
UnpackRgb (file, pixels);
else
file.Read (pixels, 0, pixels.Length);
if (file.PeekByte() == -1)
return ImageData.CreateFlipped (info, PixelFormats.Bgr24, null, pixels, stride);
var alpha = new byte[info.iWidth * info.iHeight];
if (meta.IsCompressed)
UnpackAlpha (file, alpha);
else
file.Read (alpha, 0, alpha.Length);
stride = info.iWidth * 4;
var output = new byte[stride * info.iHeight];
int src = 0;
int asrc = 0;
for (int dst = 0; dst < output.Length; dst += 4)
{
output[dst ] = pixels[src++];
output[dst+1] = pixels[src++];
output[dst+2] = pixels[src++];
output[dst+3] = alpha[asrc++];
}
return ImageData.CreateFlipped (info, PixelFormats.Bgra32, null, output, stride);
}
void UnpackRgb (IBinaryStream file, byte[] output)
{
int dst = 0;
while (dst < output.Length)
{
if (file.Read (output, dst, 3) != 3)
break;
int count = 1;
int pixel = output.ToInt24 (dst);
if (0 == pixel)
{
count = file.ReadUInt8();
}
dst += count * 3;
}
}
void UnpackAlpha (IBinaryStream file, byte[] output)
{
int dst = 0;
while (dst < output.Length)
{
int v = file.ReadByte();
if (-1 == v)
break;
int count = file.ReadByte();
if (-1 == count)
break;
count = System.Math.Min (count, output.Length - dst);
while (count --> 0)
output[dst++] = (byte)v;
}
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("RadFormat.Write not implemented");
}
}
}