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CBFZ, CBPZ, CPL0 chunks

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This commit is contained in:
Paul Chote
2010-08-10 21:18:51 +12:00
parent f4fa053a35
commit 5d688a2e27
1 changed files with 49 additions and 6 deletions
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55
OpenRA.FileFormats/Graphics/VqaReader.cs
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@@ -21,8 +21,11 @@ namespace OpenRA.FileFormats
Stream stream;
ushort flags;
ushort numFrames;
ushort numColors;
ushort width;
ushort height;
byte cbParts;
int2 blocks;
UInt32[] frames;
public VqaReader( Stream stream )
@@ -48,9 +51,10 @@ namespace OpenRA.FileFormats
var blockWidth = reader.ReadByte();
var blockHeight = reader.ReadByte();
var framerate = reader.ReadByte();
var cbParts = reader.ReadByte();
cbParts = reader.ReadByte();
blocks = new int2(width / blockWidth, height / blockHeight);
var colors = reader.ReadUInt16();
numColors = reader.ReadUInt16();
var maxBlocks = reader.ReadUInt16();
/*var unknown1 = */reader.ReadUInt16();
/*var unknown2 = */reader.ReadUInt32();
@@ -86,7 +90,7 @@ namespace OpenRA.FileFormats
if (frames[i] > 0x40000000) frames[i] -= 0x40000000;
frames[i] <<= 1;
}
while(true)
{
if (reader.BaseStream.Position == reader.BaseStream.Length)
@@ -112,6 +116,7 @@ namespace OpenRA.FileFormats
}
}
// VQA Sound sample
public void DecodeSND2(BinaryReader reader)
{
int chunkLength = (int)Swap(reader.ReadUInt32());
@@ -120,14 +125,52 @@ namespace OpenRA.FileFormats
reader.ReadBytes(chunkLength);
}
// VQA Frame
public void DecodeVQFR(BinaryReader reader)
{
int chunkLength = (int)Swap(reader.ReadUInt32());
// Don't do anything with this data (yet)
reader.ReadBytes(chunkLength);
// Pixel table
byte[] cbf = new byte[8*blocks.X*blocks.Y];
List<byte> newcbfFormat80 = new List<byte>();
int cbpCount = 0;
Color[] palette = new Color[numColors];
while(true)
{
var type = new String(reader.ReadChars(4));
int subchunkLength = (int)Swap(reader.ReadUInt32());
Console.WriteLine("Parsing VQRF sub-chunk {0}@{1}",type, reader.BaseStream.Position-4);
switch(type)
{
// Full compressed frame
case "CBFZ":
Format80.DecodeInto( reader.ReadBytes(subchunkLength), cbf );
break;
// Partial compressed frame
case "CBPZ":
var bytes = reader.ReadBytes(subchunkLength);
foreach (var b in bytes) newcbfFormat80.Add(b);
if (++cbpCount == cbParts)
Format80.DecodeInto( newcbfFormat80.ToArray(), cbf );
break;
// Palette
case "CPL0":
for (int i = 0; i < numColors; i++)
palette[i] = Color.FromArgb(reader.ReadByte(), reader.ReadByte(), reader.ReadByte());
break;
default:
throw new InvalidDataException("Unknown sub-chunk {0}".F(type));
}
}
}
// Change endianness of a uint32
public UInt32 Swap(UInt32 orig)
{
return (UInt32)((orig & 0xff000000) >> 24) | ((orig & 0x00ff0000) >> 8) | ((orig & 0x0000ff00) << 8) | ((orig & 0x000000ff) << 24);