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(BipFormat.Read): refactored.

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morkt 2015-11-07 00:18:31 +04:00
parent 6e11938080
commit 2871af397a
1 changed files with 34 additions and 38 deletions
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72
ArcFormats/ImageBIP.cs
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@ -86,6 +86,7 @@ namespace GameRes.Formats.PS2
if (0 == w || 0 == h)
return null;
var meta = new BipMetaData { Width = w, Height = h, BPP = 32 };
meta.Tiles.Capacity = tile_count;
for (int i = 0; i < tile_count; ++i)
{
input.ReadInt64();
@ -112,50 +113,45 @@ namespace GameRes.Formats.PS2
if (null == meta)
throw new ArgumentException ("BipFormat.Read should be supplied with BipMetaData", "info");
using (var input = new BinaryReader (stream, Encoding.ASCII, true))
var header = new byte[0x7c];
var bitmap = new WriteableBitmap ((int)meta.Width, (int)meta.Height,
ImageData.DefaultDpiX, ImageData.DefaultDpiY, PixelFormats.Bgra32, null);
foreach (var tile in meta.Tiles)
{
var header = new byte[0x7c];
var bitmap = new WriteableBitmap ((int)meta.Width, (int)meta.Height, 96, 96, PixelFormats.Bgra32, null);
foreach (var tile in meta.Tiles)
stream.Position = tile.Offset;
if (header.Length != stream.Read (header, 0, header.Length))
throw new InvalidFormatException ("Invalid tile header");
if (!Binary.AsciiEqual (header, "PNGFILE2"))
throw new InvalidFormatException ("Unknown tile format");
int data_size = LittleEndian.ToInt32 (header, 0x18) - header.Length;
int alpha = LittleEndian.ToInt32 (header, 0x68);
int x = LittleEndian.ToInt32 (header, 0x6c);
int y = LittleEndian.ToInt32 (header, 0x70);
using (var png = new StreamRegion (stream, stream.Position, data_size, true))
{
input.BaseStream.Position = tile.Offset;
if (header.Length != input.Read (header, 0, header.Length))
throw new InvalidFormatException ("Invalid tile header");
if (!Binary.AsciiEqual (header, "PNGFILE2"))
throw new InvalidFormatException ("Unknown tile format");
int data_size = LittleEndian.ToInt32 (header, 0x18) - header.Length;
int alpha = LittleEndian.ToInt32 (header, 0x68);
int x = LittleEndian.ToInt32 (header, 0x6c);
int y = LittleEndian.ToInt32 (header, 0x70);
var data = new byte[data_size];
if (data_size != input.Read (data, 0, data_size))
throw new InvalidFormatException ("Unexpected end of file");
using (var png = new MemoryStream (data, false))
var decoder = new PngBitmapDecoder (png,
BitmapCreateOptions.None, BitmapCacheOption.OnLoad);
BitmapSource frame = decoder.Frames[0];
PixelFormat format = 0 == alpha ? PixelFormats.Bgr32 : PixelFormats.Bgra32;
var converted = new FormatConvertedBitmap (frame, format, null, 0);
int stride = converted.PixelWidth * 4;
var pixels = new byte[stride * converted.PixelHeight];
converted.CopyPixels (pixels, stride, 0);
for (int p = 0; p < pixels.Length; p += 4)
{
var decoder = new PngBitmapDecoder (png,
BitmapCreateOptions.None, BitmapCacheOption.OnLoad);
BitmapSource frame = decoder.Frames[0];
PixelFormat format = 0 == alpha ? PixelFormats.Bgr32 : PixelFormats.Bgra32;
var converted = new FormatConvertedBitmap (frame, format, null, 0);
int stride = converted.PixelWidth * 4;
var pixels = new byte[stride * converted.PixelHeight];
converted.CopyPixels (pixels, stride, 0);
for (int p = 0; p < pixels.Length; p += 4)
{
byte r = pixels[p];
pixels[p] = pixels[p+2];
pixels[p+2] = r;
int a = 0 == alpha ? 0xff : pixels[p+3] * 0xff / 0x80;
if (a > 0xff) a = 0xff;
pixels[p+3] = (byte)a;
}
var rect = new Int32Rect (tile.Left+x, tile.Top+y, converted.PixelWidth, converted.PixelHeight);
bitmap.WritePixels (rect, pixels, stride, 0);
byte r = pixels[p];
pixels[p] = pixels[p+2];
pixels[p+2] = r;
int a = 0 == alpha ? 0xff : pixels[p+3] * 0xff / 0x80;
if (a > 0xff) a = 0xff;
pixels[p+3] = (byte)a;
}
var rect = new Int32Rect (tile.Left+x, tile.Top+y, converted.PixelWidth, converted.PixelHeight);
bitmap.WritePixels (rect, pixels, stride, 0);
}
bitmap.Freeze();
return new ImageData (bitmap, meta);
}
bitmap.Freeze();
return new ImageData (bitmap, meta);
}
}
}