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(DDS): moved to separate folder.

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morkt
2017-04-14 07:52:10 +04:00
parent b2d2310700
commit 3cd7ff697d
2 changed files with 1 additions and 1 deletions
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ArcFormats/DirectDraw/ImageDDS.cs Normal file
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//! \file ImageDDS.cs
//! \date Thu Jul 23 18:12:05 2015
//! \brief Direct Draw Surface image format.
//
// Copyright (C) 2015-2016 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.Text;
using System.Windows.Media;
using GameRes.Utility;
namespace GameRes.Formats.Microsoft
{
internal class DdsMetaData : ImageMetaData
{
public int DataOffset;
public DdsPF PixelFlags;
public string FourCC;
public uint RBitMask;
public uint GBitMask;
public uint BBitMask;
public uint ABitMask;
}
[Flags]
internal enum DdsPF : uint
{
AlphaPixels = 1,
Alpha = 2,
FourCC = 4,
Rgb = 0x40,
Yuv = 0x200,
Luminance = 0x20000,
}
[Export(typeof(ImageFormat))]
public class DdsFormat : ImageFormat
{
public override string Tag { get { return "DDS"; } }
public override string Description { get { return "Direct Draw Surface format"; } }
public override uint Signature { get { return 0x20534444; } } // 'DDS'
public override ImageMetaData ReadMetaData (IBinaryStream stream)
{
var header = stream.ReadHeader (0x6C);
int dwSize = header.ToInt32 (4);
if (dwSize < 0x7C)
return null;
var bitflags = (DdsPF)header.ToUInt32 (0x50);
string four_cc = null;
if (bitflags.HasFlag (DdsPF.FourCC))
four_cc = Binary.GetCString (header.ToArray(), 0x54, 4, Encoding.ASCII);
return new DdsMetaData
{
Width = header.ToUInt32 (0x10),
Height = header.ToUInt32 (0xC),
BPP = header.ToInt32 (0x58),
PixelFlags = bitflags,
FourCC = four_cc,
RBitMask = header.ToUInt32 (0x5C),
GBitMask = header.ToUInt32 (0x60),
BBitMask = header.ToUInt32 (0x64),
ABitMask = header.ToUInt32 (0x68),
DataOffset = 4 + dwSize,
};
}
public override ImageData Read (IBinaryStream stream, ImageMetaData info)
{
var meta = (DdsMetaData)info;
if (meta.PixelFlags.HasFlag (DdsPF.Yuv | DdsPF.Luminance))
throw new NotSupportedException ("Not supported DDS texture color format");
if (!string.IsNullOrEmpty (meta.FourCC))
throw new NotImplementedException ("Compressed DDS textures not implemented");
if (meta.PixelFlags.HasFlag (DdsPF.Rgb)
&& (0 == meta.RBitMask || 0 == meta.GBitMask || 0 == meta.BBitMask))
throw new InvalidFormatException();
var pixels = ReadPixelData (stream.AsStream, meta);
PixelFormat format;
if (meta.PixelFlags.HasFlag (DdsPF.AlphaPixels) && meta.ABitMask != 0)
format = PixelFormats.Bgra32;
else
format = PixelFormats.Bgr32;
return ImageData.Create (info, format, null, pixels);
}
byte[] ReadPixelData (Stream stream, DdsMetaData info)
{
int src_pixel_size = (info.BPP+7) / 8;
int input_size = (int)info.Width*(int)info.Height*src_pixel_size;
var input = new byte[input_size+4];
stream.Position = info.DataOffset;
if (input_size != stream.Read (input, 0, input_size))
throw new InvalidFormatException ("Unexpected end of file");
if (32 == info.BPP && 0xFF0000 == info.RBitMask && 0x00FF00 == info.GBitMask && 0x0000FF == info.BBitMask)
return input;
var output = new byte[info.Width*info.Height*4];
int dst = 0;
Func<int, uint> get_pixel;
if (8 == info.BPP)
get_pixel = x => input[x];
else if (info.BPP <= 16)
get_pixel = x => LittleEndian.ToUInt16 (input, x);
else
get_pixel = x => LittleEndian.ToUInt32 (input, x);
Func<uint, uint, byte> convert_pixel;
if (info.BPP > 24)
convert_pixel = (p, mask) => (byte)((p & mask) * 0xFFL / mask);
else
convert_pixel = (p, mask) => (byte)((p & mask) * 0xFFu / mask);
bool has_alpha = info.PixelFlags.HasFlag (DdsPF.AlphaPixels) && info.ABitMask != 0;
for (int src = 0; src < input_size; src += src_pixel_size)
{
uint src_pixel = get_pixel (src);
output[dst++] = convert_pixel (src_pixel, info.BBitMask);
output[dst++] = convert_pixel (src_pixel, info.GBitMask);
output[dst++] = convert_pixel (src_pixel, info.RBitMask);
if (has_alpha)
output[dst] = convert_pixel (src_pixel, info.ABitMask);
dst++;
}
return output;
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("DdsFormat.Write not implemented");
}
}
}