// read a block of the given index from the current LBX file into to the given LBXBlock object
public void read(LBXBlock block, int index)
{
if (_fileIn != null)
{
if (index < _blockCount)
{
// some LBX files have 0-length blocks, so check for that
if (_blockSizes[index] > 0)
{
_fileIn.BaseStream.Position = _blockOffsets[index];
block.data = _fileIn.ReadBytes(_blockSizes[index]);
}
else
{
block.data = null;
}
block.filePath = _filePath;
block.index = index;
block.offset = _blockOffsets[index];
block.size = _blockSizes[index];
}
else
{
throw new IndexOutOfRangeException("Requested block index out of bounds.");
}
}
else
{
throw new Exception("No LBX file opened.");
}
}
public void load(string filePath, int index)
{
LBXReader lbx = new LBXReader(filePath);
LBXBlock block = new LBXBlock();
lbx.read(block, index);
load(block);
lbx.close();
}
private void loadPalettes()
{
if (gameFolderPathTextBox.Text.Length > 0 && Directory.Exists(gameFolderPathTextBox.Text))
{
// populate the list box with the font .LBX files and the first several blocks.
// all of the game fonts are stored here
palettesListBox.Items.Clear();
//palettesListBox.Items.Add("FONTS.LBX:000");
palettesListBox.Items.Add("FONTS.LBX:001");
palettesListBox.Items.Add("FONTS.LBX:002");
palettesListBox.Items.Add("FONTS.LBX:003");
palettesListBox.Items.Add("FONTS.LBX:004");
palettesListBox.Items.Add("FONTS.LBX:005");
palettesListBox.Items.Add("IFONTS.LBX:000");
palettesListBox.Items.Add("IFONTS.LBX:001");
palettesListBox.Items.Add("IFONTS.LBX:002");
palettesListBox.Items.Add("IFONTS.LBX:003");
palettesListBox.Items.Add("IFONTS.LBX:004");
// a Palette[] holds the actual Palette objects
palettes = new Palette[palettesListBox.Items.Count];
LBXBlock block = new LBXBlock();
// load those
for (int i = 0; i < palettes.Length; ++i)
{
// create new palette, then parse out the filename from the block index
palettes[i] = new Palette();
string listItem = (string)palettesListBox.Items[i];
string fontFileName = listItem.Substring(0, listItem.IndexOf(":"));
int blockIndex = Int32.Parse(listItem.Substring(listItem.IndexOf(":") + 1, listItem.Length - listItem.IndexOf(":") - 1));
lbxReader.close();
lbxReader.open(gameFolderPathTextBox.Text + "\\" + fontFileName);
lbxReader.read(block, blockIndex);
palettes[i].load(block);
}
lbxReader.close();
// set the second font as the current, which should also trigger the event to
// update currentPaletteIndex and redraw the palette view image
palettesListBox.SetSelected(2, true);
}
}
/// <summary>
/// Whoa, does this work?
/// <para>paratextwee?</para>
/// </summary>
private void updateLBX()
{
LBXBlock block = new LBXBlock();
// load new LBX
lbxReader.close();
lbxReader.open(gameFolderPathTextBox.Text + "\\" + currentLBXFileName);
currentLBXBlock = 0;
// update LBX file size label
long size = lbxReader.getFileSize();
if (size < 1048576)
{
float kbCount = (float)size / 1024.0f;
currentLBXFileSizeLabel.Text = String.Format("{0:G4} KB", kbCount);
}
else
{
float mbCount = (float)size / 1048576.0f;
currentLBXFileSizeLabel.Text = String.Format("{0:G4} MB", mbCount);
}
// enable or disable arrows accordingly
if (lbxReader.getBlockCount() <= 1)
{
prevLBXBlockButton.Enabled = false;
nextLBXBlockButton.Enabled = false;
}
else
{
prevLBXBlockButton.Enabled = false;
nextLBXBlockButton.Enabled = true;
}
updateBlock();
}
/// <summary>
/// Load a full 256-entry palette from the data contained in the given LBXBlock.
/// </summary>
/// <param name="block"></param>
public void load(LBXBlock block)
{
if (block != null)
{
for (int i = 0; i < 256; ++i)
{
/*
* // convert ARGB [0,63] to RGBA [0,255]
* uint color = ((uint)block.data[i * 4 + 1] << 2) +
* ((uint)block.data[i * 4 + 2] << 10) +
* ((uint)block.data[i * 4 + 3] << 18) +
* ((uint)block.data[i * 4 + 0] << 24);
* */
// convert ARGB [0,63] to ARGB [0,255]
uint a = (uint)block.data[i * 4 + 0];
uint r = (uint)block.data[i * 4 + 1] << 2;
uint g = (uint)block.data[i * 4 + 2] << 2;
uint b = (uint)block.data[i * 4 + 3] << 2;
//if (a == 1)
a = 255;
//_palette[i] = r + (g << 8) + (b << 16) + (a << 24);
// BGRA ????????
this._palette[i] = b + (g << 8) + (r << 16) + (a << 24);
}
this.size = 256;
this.offset = 0;
}
else
{
throw new Exception("Null block given to load");
}
}
public void load(LBXBlock block)
{
if (block.size > 0 && block.data != null)
{
free();
BinaryReader data = new BinaryReader(new MemoryStream(block.data));
// read header information
_header.width = data.ReadUInt16();
_header.height = data.ReadUInt16();
_header.zero = data.ReadUInt16();
_header.frameCount = data.ReadUInt16();
_header.frameDelay = data.ReadUInt16();
_header.flags = data.ReadUInt16();
// only support 640x480 images for now
if (_header.width <= 640 && _header.height <= 480)
{
_frames = new ImageFrame[_header.frameCount];
// read frame offsets, plus the extra at the end
uint start, end;
start = data.ReadUInt32();
for (int i = 0; i < _header.frameCount; ++i)
{
end = data.ReadUInt32();
_frames[i].size = end - start;
_frames[i].offset = start;
start = end;
}
// if there's an internal palette, it follows the offsets and precedes the frame data
if ((_header.flags & (ushort)ImageFlags.INTERNAL_PALETTE) != 0)
{
// color shift specifies where to start overwriting the palette with colorCount colors
ushort colorShift = data.ReadUInt16();
ushort colorCount = data.ReadUInt16();
if (colorCount > 256 || colorShift > 255)
{
throw new Exception("Invalid internal palette");
}
else
{
uint[] buffer = new uint[colorCount];
for (int i = 0; i < colorCount; ++i)
{
// read in ARGB [0, 63] and save as ARGB [0, 255]
uint a = data.ReadByte();
uint r = (uint)data.ReadByte() << 2;
uint g = (uint)data.ReadByte() << 2;
uint b = (uint)data.ReadByte() << 2;
//if (a == 1)
// a = 255;
//else if (a == 0)
a = 255;
uint color = b + (g << 8) + (r << 16) + (a << 24);
buffer[i] = color;
}
_internalPalette = new Palette();
_internalPalette.load(buffer, colorShift);
_updatePalettes();
}
}
// read in frame data
for (int f = 0; f < _frames.Length; ++f)
{
data.BaseStream.Position = _frames[f].offset;
// first byte of the "frame header" should be 1.
// if not, invalid frame! current frame's buffer remains null
if (data.ReadUInt16() != 1)
{
_frames[f].buffer = null;
_frames[f].bitmap = null;
continue;
}
else
{
//data.ReadUInt16();
//_frames[f].bitmap = new Bitmap(_header.width, _header.height);
_frames[f].buffer = new byte[_header.width * _header.height];
_frames[f].bitmap = new Bitmap(_header.width, _header.height);
short pixelCount, startY, xIndent, yIndent;
short cx = 0, cy = 0;
// get the starting Y position for drawing
startY = data.ReadInt16();
cy += startY;
// draw loop until break (yIdent == 1000) or we go beyond the frame size (shouldn't happen normally?)
while ((data.BaseStream.Position - _frames[f].offset) < _frames[f].size)
{
pixelCount = data.ReadInt16();
// if the pixel count is > 0, this is a horizontal run
if (pixelCount > 0)
{
xIndent = data.ReadInt16();
cx += xIndent;
// copy the run of pixels
data.Read(_frames[f].buffer, cx + cy * (short)_header.width, pixelCount);
cx += pixelCount;
// if the pixel count was odd, skip 1 extra byte!
if ((pixelCount % 2) != 0)
{
data.ReadByte();
}
}
// else, it's a y-indent with no drawing
else
{
yIndent = data.ReadInt16();
// if y-indent is 1000, it means quit?
if (yIndent != 1000)
{
cy += yIndent;
cx = 0;
}
else
{
break;
}
}
}
}
}
}
else
{
throw new Exception("image larger than 640x480 (?)");
}
}
}
/// <summary>
/// Loads a particular font (out of 6) from the given block.
/// </summary>
/// <param name="block"></param>
/// <param name="index"></param>
public void load(LBXBlock block, int index)
{
if (block == null || index < 0 || index > 5)
{
throw new Exception("Invalid font load parameters.");
}
else if (block.data == null)
{
throw new Exception("Font block data is null");
}
else
{
// I love these things.
BinaryReader data = new BinaryReader(new MemoryStream(block.data));
// jump to the start of font[index]'s glyph widths;
// 256 glyphs, 1 byte per width, total of 0x100 bytes per font
data.BaseStream.Position = 0x59C + (long)index * 0x100;
byte[] glyphWidths = new byte[256];
this._maxGlyphWidth = 0;
// read the widths
for (int i = 0; i < 256; ++i)
{
glyphWidths[i] = data.ReadByte();
if (glyphWidths[i] > this._maxGlyphWidth)
{
this._maxGlyphWidth = glyphWidths[i];
}
}
// jump to the start of font[index]'s glyph offsets;
// 256 glyphs, 4 bytes per offset, total of 0x400 bytes per font
data.BaseStream.Position = 0xB9C + (long)index * 0x400;
uint[] glyphOffsets = new uint[256];
uint[] glyphDataSize = new uint[256];
// read the offsets
for (int i = 0; i < 256; ++i)
{
glyphOffsets[i] = data.ReadUInt32();
// compute the data size as the difference between offsets
if (i > 0)
{
glyphDataSize[i - 1] = glyphOffsets[i] - glyphOffsets[i - 1];
}
}
// don't forget the last glyphDataSize
//glyphDataSize[255] = data.ReadUInt32() - glyphOffsets[255];
glyphDataSize[255] = 0;
// the max glyph width is used to generate the temporary buffer into which
// font data is decoded. it's assumed no glyph would be taller than twice
// the max width, but this isn't necessarily so.
byte[,] glyphBuffer = new byte[maxGlyphWidth, maxGlyphWidth * 2];
int cx, cy;
int maxW, maxH;
// jagged array of 2D arrays, mmmm.
this._glyphData = new byte[256][, ];
// this will track the distinct palette indices that this font uses
this._glyphColors = new byte[256];
this._maxGlyphHeight = 0;
// read in the font data!
for (int i = 0; i < 256; ++i)
{
// all 6 fonts' offsets are relative to the start of the font data at 0x239C
data.BaseStream.Position = 0x239C + glyphOffsets[i];
cx = 0;
cy = 0;
maxW = 0;
maxH = 0;
//Array.Clear(glyphBuffer, 0, glyphBuffer.Length);
for (int y = 0; y < glyphBuffer.GetLength(1); ++y)
{
for (int x = 0; x < glyphBuffer.GetLength(0); ++x)
{
glyphBuffer[x, y] = 0xFF;
}
}
try
{
while ((data.BaseStream.Position - 0x239C - glyphOffsets[i]) < glyphDataSize[i])
{
byte val = data.ReadByte();
// 0x00-0x7f: color of next pixel
if (val <= 0x7F)
{
if (this._glyphColors[val] == 0)
{
this._glyphColors[val]++;
}
if (cx >= 0 && cx < glyphBuffer.GetLength(0) &&
cy >= 0 && cy < glyphBuffer.GetLength(1))
{
glyphBuffer[cx, cy] = val;
// track the total pixel-drawing extent of this glyph
if (cx > maxW)
{
maxW = cx;
}
if (cy > maxH)
{
maxH = cy;
}
// increment after tracking!
cx++;
}
}
// 0x80: skip to beginning of next line
else if (val == 0x80)
{
cx = 0;
cy++;
}
// 0x8n: skip n pixels
else
{
cx += (val & 0x0F);
}
}
}
catch (Exception ex)
{
//
}
// now allocate the properly sized mini-buffer for this glyph and copy from the temp buffer
if (true)//maxW > 0 && maxH > 0)
{
this._glyphData[i] = new byte[maxW + 1, maxH + 1];
for (int x = 0; x < (maxW + 1); ++x)
{
for (int y = 0; y < (maxH + 1); ++y)
{
this._glyphData[i][x, y] = glyphBuffer[x, y];
}
}
// track the max glyph height
if ((maxH + 1) > this._maxGlyphHeight)
{
this._maxGlyphHeight = maxH + 1;
}
}
}
}
}
private void testButton_Click(object sender, EventArgs e)
{
LBXBlock block = new LBXBlock();
// FONTS.LBX and IFONTS.LBX both contain palettes and fonts
lbxReader.close();
lbxReader.open(gameFolderPathTextBox.Text + "\\" + "FONTS.LBX");
// load a palette to use
lbxReader.read(block, 1);
Palette pal = new Palette();
// force the last palette entry to white
block.data[0xFF * 4 + 0] = 0xFF;
block.data[0xFF * 4 + 1] = 0x33;
block.data[0xFF * 4 + 2] = 0x33;
block.data[0xFF * 4 + 3] = 0x33;
pal.load(block);
lbxReader.close();
lbxReader.open(gameFolderPathTextBox.Text + "\\" + "IFONTS.LBX");
lbxReader.read(block, 0);
Font font = new Font();
// FONT THING
font.load(block, 5);
font.palette = pal;
Bitmap b = new Bitmap(640, 480);
Graphics gg = Graphics.FromImage(b);
gg.Clear(Color.White);
/*
* for (int g = 32; g < 128; ++g)
* {
* int x = (g % 16) * (font.maxGlyphWidth + 1) + 1;
* int y = (g / 16) * (font.maxGlyphHeight + 1) + 1;
* font.renderGlyph((byte)g, b, x, y);
* }
*/
font.renderString("Hello, Xus. :)", b, 10, 10);
font.renderString(@"This seems to be working more or less? 2 + 2 = 4 (usually) \o/ :P", b, 10, 200);
pictureBox1.Image = b;
pictureBox1.Refresh();
string colorList = "";
for (int i = 0; i < 128; ++i)
{
if (font.glyphColors[i] > 0)
{
colorList = colorList + i.ToString() + " ";
}
}
fontColorsListTextBox.Text = colorList;
lbxReader.close();
}
private void updateBlock()
{
LBXBlock block = new LBXBlock();
// make sure an LBX file is loaded first (avoids crash on startup)
if (currentLBXFileName.Length > 0)
{
// update block counter label
currentLBXBlockLabel.Text = currentLBXBlock.ToString() + " / " + (lbxReader.getBlockCount() - 1).ToString();
lbxReader.read(block, currentLBXBlock);
if (block.data != null)
{
// load new block as an image
currentImage = new Image();
currentImage.setExternalPalette(palettes[currentPaletteIndex]);
currentImage.load(block);
currentImageFrame = 0;
// update image header display with whatever was read
imageHeaderWidthTextBox.Text = String.Format("{0:X2} {1:X2} ({2})", currentImage.getWidth() & 0xFF, (currentImage.getWidth() & 0xFF00) >> 8, currentImage.getWidth());
imageHeaderHeightTextBox.Text = String.Format("{0:X2} {1:X2} ({2})", currentImage.getHeight() & 0xFF, (currentImage.getHeight() & 0xFF00) >> 8, currentImage.getHeight());
imageHeaderZeroTextBox.Text = String.Format("{0:X2} {1:X2}", currentImage.getHeader().zero & 0xFF, (currentImage.getHeader().zero & 0xFF00) >> 8);
imageHeaderFrameCountTextBox.Text = String.Format("{0:X2} {1:X2} ({2})", currentImage.getHeader().frameCount & 0xFF, (currentImage.getHeader().frameCount & 0xFF00) >> 8, currentImage.getHeader().frameCount);
imageHeaderFrameDelayTextBox.Text = String.Format("{0:X2} {1:X2} ({2})", currentImage.getHeader().frameDelay & 0xFF, (currentImage.getHeader().frameDelay & 0xFF00) >> 8, currentImage.getHeader().frameDelay);
imageHeaderFlagsTextBox.Text = formatImageFlagsString(currentImage.getHeader().flags);
// if there's an internal palette currently locked, render with that
if (internalPaletteLockButton.Checked)
{
currentImage.render(lockedInternalPalette);
}
else
{
currentImage.render();
if (currentImage.getInternalPalette() != null)
{
internalPaletteLockButton.Enabled = true;
}
else
{
internalPaletteLockButton.Enabled = false;
}
}
updatePalettes();
// enable/disable the next/prev frame buttons as appropriate
if (currentImage.getHeader().frameCount <= 1)
{
prevImageFrameButton.Enabled = false;
nextImageFrameButton.Enabled = false;
}
else
{
prevImageFrameButton.Enabled = false;
nextImageFrameButton.Enabled = true;
}
// update the track bar with an appropriate number of zoom levels:
// computed as either log_2(640 / width) or log_2(480 / height) depending on which is greater;
// determine this via the aspect ratio
float ar = (float)currentImage.getWidth() / (float)currentImage.getHeight();
float range;
// if the image is tall and skinny, use the height
if (ar < (4.0f / 3.0f))
{
range = 480.0f / (float)currentImage.getHeight();
}
else
{
range = 640.0f / (float)currentImage.getWidth();
}
// add 1 tick mark for the stretch-to-fit option at the end
int tickCount = (int)Math.Floor(Math.Log(range, 2.0)) + 1;
// snap the old trackbar value to the new range
if (imageZoomTrackBar.Value > tickCount)
{
imageZoomTrackBar.Value = tickCount;
}
imageZoomTrackBar.Minimum = 0; // start at 2^0 or 1x zoom
imageZoomTrackBar.Maximum = tickCount;
imageZoomTrackBar.TickFrequency = 1;
//imageZoomTrackBar.Value = 0;
imageZoomTrackBar_ValueChanged(null, null);
}
}
}
