public Bitmap BitmapFromFrame(int frameNo)
{
Bitmap bmp = null;
if (!IsEmpty() && (frameNo >= 0) && (frameNo < m_frames.Count))
{
spPalette pal = m_palettes[0];
spPixels pix = m_frames[frameNo];
int width = pix.m_width * 2;
int height = pix.m_height;
bmp = new Bitmap(width, height);
for (int y = 0; y < height; ++y)
{
for (int x = 0; x < width; ++x)
{
byte px = pix.m_pixels[(y * pix.m_width) + (x >> 1)];
if (0 == (x & 1))
{
px >>= 4;
}
px &= 0xF;
Color c = pal.colors[px];
if (0 == px)
{
c = Color.FromArgb(0, c.R, c.G, c.B);
}
bmp.SetPixel(x, y, c);
}
}
}
return(bmp);
}
public spData(string pathName)
{
Console.WriteLine("import: {0}", pathName);
using (BinaryReader b = new BinaryReader(
File.Open(pathName, FileMode.Open)))
{
// Use BaseStream.
long fileLength = b.BaseStream.Length;
UInt32 header = b.ReadUInt32();
UInt16 v0 = 0;
UInt16 v1 = 0;
while (0xFFFFFFFF != header)
{
UInt16 length = b.ReadUInt16();
Console.WriteLine("0x{0:X8} {1}{2}{3}{4} - {5}",
header,
(char)((header >> 0) & 0xFF),
(char)((header >> 8) & 0xFF),
(char)((header >> 16) & 0xFF),
(char)((header >> 24) & 0xFF),
length
);
switch (header)
{
// SPRITE FILE HEADER
case 0x41454853: // 'SHEA'
Debug.Assert(4 == length);
v0 = b.ReadUInt16();
v1 = b.ReadUInt16();
Console.WriteLine("v = {0:X4}", v0);
Console.WriteLine("v = {0:X4}", v1);
break;
// SPRITE PALETTE ENTRIES
case 0x45505353: // 'SSPE'
{
// 50
// 99
// byte pal num
// 16 color (3 bytes each)
// pal num = 0xFF end
while (true)
{
byte palNo = b.ReadByte();
if (0xFF == palNo)
{
break;
}
Console.WriteLine("Read palNo {0}", palNo);
spPalette pal = new spPalette();
byte red;
byte green;
byte blue;
for (int idx = 0; idx < 16; ++idx)
{
red = b.ReadByte();
green = b.ReadByte();
blue = b.ReadByte();
pal.colors.Add(Color.FromArgb(255, red, green, blue));
}
m_palettes.Add(pal);
}
}
break;
// SPRITE PACKED PIXELS
case 0x50505353: // 'SSPP'
{
// 10 byte header
// b 0
// b 0
// b width in bytes (2x this for pixels)
// b height in bytes
// b 0
// w xoff
// w yoff
// b 0
byte ub = 0;
ub = b.ReadByte(); // Discard
Debug.Assert(0 == ub);
ub = b.ReadByte(); // Discard
Debug.Assert(0 == ub);
byte width = b.ReadByte();
byte height = b.ReadByte();
b.ReadByte(); // Discard
Int16 xoff = b.ReadInt16();
Int16 yoff = b.ReadInt16();
if (v1 > 0x100)
{
ub = b.ReadByte(); // Discard
}
//Debug.Assert(0 == ub);
Console.WriteLine(" {0}x{1} {2},{3}",
width, height,
xoff, yoff
);
if (v1 > 0x100)
{
length -= 10;
}
else
{
length -= 9;
}
// Read in the pixels
List <byte> pixels = new List <byte>();
// pixel data (w x h)
while (0 != length)
{
pixels.Add(b.ReadByte());
length--;
}
// Create a pixel frame
spPixels pixelFrame = new spPixels(width, height, pixels);
pixelFrame.m_offset_x = xoff;
pixelFrame.m_offset_y = yoff;
// Add it to the list
m_frames.Add(pixelFrame);
}
break;
case 0x4D4E4153: // 'SANM'
/*
* dw <size in bytes> ; including these 2 bytes
* db #of lines in the seqence
*
* db <frameNo> or 0xFF means command
*
* ; Loop
* 01
* ; Goto
* 02, targetLo, TargetHi
*
* ; SetSpeed
* 06, speedlo, speed hi
* ; Loop
* 0A
* ; Process
* 0E, <byte>processNum
* ; NOP
* 0D, NOP
* ; GotoLast (return)
* 10
*
* GotoSeq
* MultiOp
* Sound XX
* HFlip
* VFlip
* SetFlag
* BRK
*/
while (0 != length)
{
b.ReadByte();
length--;
}
break;
default:
{
// Skip the Chunk, since we don't know what it is
while (0 != length)
{
b.ReadByte();
length--;
}
break;
}
}
header = b.ReadUInt32();
}
#if false
switch (header)
{
// SPRITE FILE HEADER
case 'SHEA':
break;
case 'SSPE':
break;
case 'SSPP':
case 'SOBJ':
case 'SANM':
case 'SRCT':
}
#endif
}
}
