void ReadAudioChunk(BitStream bs, int channel)
{
uint frameAudioLength = 0;
uint audioDecompressedLength = 0;
bool compressed = ((audioFlags[channel] & (int)ARFlags.Compressed) == (int)ARFlags.Compressed);
bool is16 = ((audioFlags[channel] & (int)ARFlags.Is16Bit) == (int)ARFlags.Is16Bit);
bool stereo = ((audioFlags[channel] & (int)ARFlags.Stereo) == (int)ARFlags.Stereo);
bs.AssertAtByteBoundary();
bs.DebugFirst();
Console.WriteLine("reading audio chunk length");
frameAudioLength = bs.ReadDWord();
Console.WriteLine("audio chunk length = {0}", frameAudioLength);
if (compressed)
{
audioDecompressedLength = bs.ReadDWord();
Console.WriteLine("decompressed audio length = {0}", audioDecompressedLength);
byte[] streamBuf = new byte[frameAudioLength];
bs.Read(streamBuf, 0, streamBuf.Length);
audioOut[channel] = new byte[audioDecompressedLength];
if (is16)
{
if (stereo)
{
Decompress16Stereo(new BitStream(streamBuf), new MemoryStream(audioOut[channel]));
}
else
{
Decompress16Mono(new BitStream(streamBuf), new MemoryStream(audioOut[channel]));
}
}
else
if (stereo)
{
Decompress8Stereo(new BitStream(streamBuf), new MemoryStream(audioOut[channel]));
}
else
{
Decompress8Mono(new BitStream(streamBuf), new MemoryStream(audioOut[channel]));
}
}
else
{
audioOut[channel] = new byte[frameAudioLength];
bs.Read(audioOut[channel], 0, (int)frameAudioLength);
}
}
void ReadAudioChunk (BitStream bs, int channel)
{
uint frameAudioLength = 0;
uint audioDecompressedLength = 0;
bool compressed = ((audioFlags[channel] & (int)ARFlags.Compressed) == (int)ARFlags.Compressed);
bool is16 = ((audioFlags[channel] & (int)ARFlags.Is16Bit) == (int)ARFlags.Is16Bit);
bool stereo = ((audioFlags[channel] & (int)ARFlags.Stereo) == (int)ARFlags.Stereo);
bs.AssertAtByteBoundary ();
bs.DebugFirst ();
Console.WriteLine ("reading audio chunk length");
frameAudioLength = bs.ReadDWord ();
Console.WriteLine ("audio chunk length = {0}", frameAudioLength);
if (compressed) {
audioDecompressedLength = bs.ReadDWord ();
Console.WriteLine ("decompressed audio length = {0}", audioDecompressedLength);
byte[] streamBuf = new byte[frameAudioLength];
bs.Read (streamBuf, 0, streamBuf.Length);
audioOut[channel] = new byte[audioDecompressedLength];
if (is16)
if (stereo)
Decompress16Stereo (new BitStream (streamBuf), new MemoryStream (audioOut[channel]));
else
Decompress16Mono (new BitStream (streamBuf), new MemoryStream (audioOut[channel]));
else
if (stereo)
Decompress8Stereo (new BitStream (streamBuf), new MemoryStream (audioOut[channel]));
else
Decompress8Mono (new BitStream (streamBuf), new MemoryStream (audioOut[channel]));
}
else {
audioOut[channel] = new byte[frameAudioLength];
bs.Read (audioOut[channel], 0, (int)frameAudioLength);
}
}
void ReadVideoChunk (BitStream bs)
{
int current_block_x = 0, current_block_y = 0;
int block_rez_x = (int)PaddedWidth / 4;
int block_rez_y = (int)PaddedHeight / 4;
Console.WriteLine ("reading video chunk");
bs.DebugFirst ();
while (true) {
ushort type_descriptor = 0;
if (type_Tree != null)
type_descriptor = (ushort)type_Tree.Decode (bs);
BlockType type = (BlockType)(type_descriptor & 0x3);
uint chain_length = block_chain_size_table [(type_descriptor & 0xfc) >> 2];
Console.WriteLine ("rendering {0} blocks of type {1}", chain_length, type);
for (int i = 0; i < chain_length; i ++) {
switch (type) {
case BlockType.Mono:
ushort pixel = (ushort) mclr_Tree.Decode (bs);
byte color1 = (byte)((pixel >> 8) & 0xff);
byte color0 = (byte)(pixel & 0xff);
ushort map = (ushort) mmap_Tree.Decode (bs);
int mask = 1;
int bx, by;
bx = current_block_x * 4;
by = current_block_y * 4;
for (int bi = 0; bi < 16;) {
if ((map & mask) == 0)
frameData[by * PaddedWidth + bx] = color0;
else
frameData[by * PaddedWidth + bx] = color1;
mask <<= 1;
bx ++;
bi++;
if ((bi % 4) == 0) {
bx = current_block_x * 4;
by ++;
}
}
break;
case BlockType.Full:
break;
case BlockType.Void:
break;
case BlockType.Solid:
break;
}
current_block_x ++;
if (current_block_x == block_rez_x) {
current_block_x = 0;
current_block_y ++;
if (current_block_y == block_rez_y)
return;
}
}
}
}
void ReadVideoChunk(BitStream bs)
{
int current_block_x = 0, current_block_y = 0;
int block_rez_x = (int)PaddedWidth / 4;
int block_rez_y = (int)PaddedHeight / 4;
Console.WriteLine("reading video chunk");
bs.DebugFirst();
while (true)
{
ushort type_descriptor = 0;
if (type_Tree != null)
{
type_descriptor = (ushort)type_Tree.Decode(bs);
}
BlockType type = (BlockType)(type_descriptor & 0x3);
uint chain_length = block_chain_size_table [(type_descriptor & 0xfc) >> 2];
Console.WriteLine("rendering {0} blocks of type {1}", chain_length, type);
for (int i = 0; i < chain_length; i++)
{
switch (type)
{
case BlockType.Mono:
ushort pixel = (ushort)mclr_Tree.Decode(bs);
byte color1 = (byte)((pixel >> 8) & 0xff);
byte color0 = (byte)(pixel & 0xff);
ushort map = (ushort)mmap_Tree.Decode(bs);
int mask = 1;
int bx, by;
bx = current_block_x * 4;
by = current_block_y * 4;
for (int bi = 0; bi < 16;)
{
if ((map & mask) == 0)
{
frameData[by * PaddedWidth + bx] = color0;
}
else
{
frameData[by * PaddedWidth + bx] = color1;
}
mask <<= 1;
bx++;
bi++;
if ((bi % 4) == 0)
{
bx = current_block_x * 4;
by++;
}
}
break;
case BlockType.Full:
break;
case BlockType.Void:
break;
case BlockType.Solid:
break;
}
current_block_x++;
if (current_block_x == block_rez_x)
{
current_block_x = 0;
current_block_y++;
if (current_block_y == block_rez_y)
{
return;
}
}
}
}
}
