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Dump the animation to a set of bitmaps; glitches every 8 frames.

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This commit is contained in:
Paul Chote
2010-08-11 00:33:58 +12:00
parent 80aade857e
commit b98e180361
2 changed files with 77 additions and 61 deletions
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129
OpenRA.FileFormats/Graphics/VqaReader.cs
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@@ -21,7 +21,7 @@ namespace OpenRA.FileFormats
{
Stream stream;
ushort flags;
ushort numFrames;
public readonly ushort numFrames;
ushort numColors;
ushort width;
ushort height;
@@ -30,7 +30,19 @@ namespace OpenRA.FileFormats
byte cbParts;
int2 blocks;
UInt32[] frames;
int currentFrame;
// Stores a list of subpixels, referenced by the VPTZ chunk
byte[] cbf;
// cbf array is updated every 8 frames
List<byte> newcbfFormat80 = new List<byte>();
int cbpCount = 0;
Color[] palette;
// Contains a listof palette indices for the current frame
byte[] framedata;
public VqaReader( Stream stream )
{
this.stream = stream;
@@ -61,6 +73,11 @@ namespace OpenRA.FileFormats
/*var maxBlocks = */reader.ReadUInt16();
/*var unknown1 = */reader.ReadUInt16();
/*var unknown2 = */reader.ReadUInt32();
cbf = new byte[8*blocks.X*blocks.Y];
palette = new Color[numColors];
framedata = new byte[2*blocks.X*blocks.Y];
// Audio?
var freq = reader.ReadUInt16();
@@ -94,21 +111,29 @@ namespace OpenRA.FileFormats
frames[i] <<= 1;
}
while(true)
// Load the first frame
currentFrame = 0;
AdvanceFrame();
}
public void AdvanceFrame()
{
// Seek to the start of the frame
stream.Seek(frames[currentFrame], SeekOrigin.Begin);
BinaryReader reader = new BinaryReader(stream);
var end = (currentFrame < numFrames - 1) ? frames[currentFrame+1] : stream.Length;
while(reader.BaseStream.Position < end)
{
if (reader.BaseStream.Length - reader.BaseStream.Position < 4)
break;
// Chunks are aligned on even bytes; may be padded with a single null
if (reader.PeekChar() == 0) reader.ReadByte();
var type = new String(reader.ReadChars(4));
var length = Swap(reader.ReadUInt32());
Console.WriteLine("Parsing chunk {0}@{1}",type, reader.BaseStream.Position-4);
switch(type)
{
case "SND2":
DecodeSND2(reader);
// Don't parse sound (yet); skip data
reader.ReadBytes((int)length);
break;
case "VQFR":
DecodeVQFR(reader);
@@ -116,35 +141,44 @@ namespace OpenRA.FileFormats
default:
throw new InvalidDataException("Unknown chunk {0}".F(type));
}
// Chunks are aligned on even bytes; advance by a byte if the next one is null
if (reader.PeekChar() == 0) reader.ReadByte();
}
currentFrame++;
}
// VQA Sound sample
public void DecodeSND2(BinaryReader reader)
public Bitmap FrameData()
{
int chunkLength = (int)Swap(reader.ReadUInt32());
Bitmap frame = new Bitmap(width, height);
var bitmapData = frame.LockBits(new Rectangle(0, 0, width, height),
ImageLockMode.ReadWrite, PixelFormat.Format32bppArgb);
// first bit in flags is zero if there is no audio
// Don't do anything with this data (yet)
reader.ReadBytes(chunkLength);
unsafe
{
int* c = (int*)bitmapData.Scan0;
for (var y = 0; y < blocks.Y; y++)
for (var x = 0; x < blocks.X; x++)
{
var px = framedata[x + y*blocks.X];
var mod = framedata[x + (y + blocks.Y)*blocks.X];
for (var j = 0; j < blockHeight; j++)
for (var i = 0; i < blockWidth; i++)
{
var cbfi = (mod*256 + px)*8 + j*blockWidth + i;
byte color = (mod == 0x0f) ? px : cbf[cbfi];
*(c + ((y*blockHeight + j) * bitmapData.Stride >> 2) + x*blockWidth + i) = palette[color].ToArgb();
}
}
}
frame.UnlockBits(bitmapData);
return frame;
}
// VQA Frame
public void DecodeVQFR(BinaryReader reader)
{
/* var chunkLength = Swap(*/reader.ReadUInt32();
// Stores a list of subpixels, referenced by the VPTZ chunk
byte[] cbf = new byte[8*blocks.X*blocks.Y];
// cbf array is updated every 8 frames
List<byte> newcbfFormat80 = new List<byte>();
int cbpCount = 0;
Color[] palette = new Color[numColors];
{
while(true)
{
// Chunks are aligned on even bytes; may be padded with a single null
@@ -165,7 +199,11 @@ namespace OpenRA.FileFormats
var bytes = reader.ReadBytes(subchunkLength);
foreach (var b in bytes) newcbfFormat80.Add(b);
if (++cbpCount == cbParts) // Update the frame-modifier
{
Format80.DecodeInto( newcbfFormat80.ToArray(), cbf );
cbpCount = 0;
newcbfFormat80.Clear();
}
break;
// Palette
@@ -175,42 +213,13 @@ namespace OpenRA.FileFormats
byte r = reader.ReadByte();
byte g = reader.ReadByte();
byte b = reader.ReadByte();
palette[i] = Color.FromArgb(255,ToColorByte(r),ToColorByte(b),ToColorByte(b));
palette[i] = Color.FromArgb(255,ToColorByte(r),ToColorByte(g),ToColorByte(b));
}
break;
// Frame data
case "VPTZ":
var framedata = new byte[2*blocks.X*blocks.Y];
Format80.DecodeInto( reader.ReadBytes(subchunkLength), framedata );
// Vomit the frame data to file
Bitmap foo = new Bitmap(width, height);
var bitmapData = foo.LockBits(new Rectangle(0, 0, width, height),
ImageLockMode.ReadWrite, PixelFormat.Format32bppArgb);
unsafe
{
int* c = (int*)bitmapData.Scan0;
for (var y = 0; y < blocks.Y; y++)
for (var x = 0; x < blocks.X; x++)
{
var px = framedata[x + y*blocks.X];
var mod = framedata[x + (y + blocks.Y)*blocks.X];
for (var j = 0; j < blockHeight; j++)
for (var i = 0; i < blockWidth; i++)
{
byte color = (mod == 0x0f) ? px : cbf[(mod << 8 | px) << 3 + j*blockWidth + i];
*(c + ((y*blockHeight + j) * bitmapData.Stride >> 2) + x*blockWidth + i) = palette[color].ToArgb();
}
}
}
foo.UnlockBits(bitmapData);
foo.Save("test.bmp");
throw new InvalidDataException("foo");
// This is the last subchunk
return;
default: