public static byte[] GetPixelData(Bitmap img, int format, bool rectangle = true)
{
int w = img.Width;
int h = img.Height;
bool perfect = w == h && w != 0 && (w & (w - 1)) == 0;
if (!perfect) // Check if square power of two, else resize
{
// Square Format Checks
if (rectangle && Math.Min(img.Width, img.Height) < 32)
{
w = XLIMUtil.NextLargestPow2(img.Width);
h = XLIMUtil.NextLargestPow2(img.Height);
}
else
{
w = h = Math.Max(XLIMUtil.NextLargestPow2(w), XLIMUtil.NextLargestPow2(h)); // else resize
}
}
using MemoryStream mz = new MemoryStream();
using BinaryWriter bz = new BinaryWriter(mz);
int p = XLIMUtil.GreatestCommonMultiple(w, 8) / 8;
if (p == 0)
{
p = 1;
}
for (uint i = 0; i < w * h; i++)
{
XLIMOrienter.DecimalToCartesian(i % 64, out uint x, out uint y);
// Get Shift Tile
uint tile = i / 64;
// Shift Tile Coordinate into Tilemap
x += (uint)(tile % p) * 8;
y += (uint)(tile / p) * 8;
// Don't write data
Color c;
if (x >= img.Width || y >= img.Height)
{
c = Color.FromArgb(0, 0, 0, 0);
}
else
{
c = img.GetPixel((int)x, (int)y); if (c.A == 0)
{
c = Color.FromArgb(0, 86, 86, 86);
}
}
switch (format)
{
case 0: bz.Write(GetL8(c)); break; // L8
case 1: bz.Write(GetA8(c)); break; // A8
case 2: bz.Write(GetLA4(c)); break; // LA4(4)
case 3: bz.Write(GetLA8(c)); break; // LA8(8)
case 4: bz.Write(GetHILO8(c)); break; // HILO8
case 5: bz.Write(GetRGB565(c)); break; // RGB565
case 6:
{
bz.Write(c.B);
bz.Write(c.G);
bz.Write(c.R); break;
}
case 7: bz.Write(GetRGBA5551(c)); break; // RGBA5551
case 8: bz.Write(GetRGBA4444(c)); break; // RGBA4444
case 9: bz.Write(GetRGBA8888(c)); break; // RGBA8
case 10: throw new Exception("ETC1 not supported.");
case 11: throw new Exception("ETC1A4 not supported.");
case 12:
{
byte val = (byte)(GetL8(c) / 0x11); // First Pix // L4
{ c = img.GetPixel((int)x, (int)y); if (c.A == 0)
{
c = Color.FromArgb(0, 0, 0, 0);
}
}
val |= (byte)((GetL8(c) / 0x11) << 4); i++;
bz.Write(val); break;
}
case 13:
{
byte val = (byte)(GetA8(c) / 0x11); // First Pix // L4
{ c = img.GetPixel((int)x, (int)y); }
val |= (byte)((GetA8(c) / 0x11) << 4); i++;
bz.Write(val); break;
}
}
}
if (!perfect)
{
while (mz.Length < XLIMUtil.NextLargestPow2((int)mz.Length)) // pad
{
bz.Write((byte)0);
}
}
return(mz.ToArray());
}
// BCLIM Data Writing
public static int Write16BitColorPalette(Bitmap img, MemoryStream ms)
{
using Stream pixelcolors = new MemoryStream();
using BinaryWriter bz = new BinaryWriter(pixelcolors);
// Set up our basis.
bool under16colors = false;
int colors = GetColorCount(img);
Color[] pcs = new Color[colors];
if (colors < 16)
{
under16colors = true;
}
uint div = 1;
if (under16colors)
{
div = 2;
}
if (colors > 70)
{
throw new Exception("Too many colors");
}
// Set up a new reverse image to build into.
int w = XLIMUtil.GreatestCommonMultiple(img.Width, 8);
int h = XLIMUtil.GreatestCommonMultiple(img.Height, 8);
w = Math.Max(XLIMUtil.NextLargestPow2(w), XLIMUtil.NextLargestPow2(h));
h = w;
byte[] pixelarray = new byte[w * h];
const int colorformat = 2;
int ctr = 1;
pcs[0] = Color.FromArgb(0, 0xFF, 0xFF, 0xFF);
int p = XLIMUtil.GreatestCommonMultiple(w, 8) / 8;
if (p == 0)
{
p = 1;
}
int d = 0;
for (uint i = 0; i < pixelarray.Length; i++)
{
d = (int)(i / div);
// Get Tile Coordinate
XLIMOrienter.DecimalToCartesian(i % 64, out var x, out var y);
// Get Shift Tile
uint tile = i / 64;
// Shift Tile Coordinate into Tilemap
x += (uint)(tile % p) * 8;
y += (uint)(tile / p) * 8;
if (x >= img.Width || y >= img.Height) // Don't try to access any pixel data outside of our bounds.
{
i++; continue;
} // Goto next tile.
// Get Color of Pixel
Color c = img.GetPixel((int)x, (int)y);
// Color Table Building Logic
int index = Array.IndexOf(pcs, c);
if (c.A == 0)
{
index = 0;
}
if (index < 0) // If new color
{
pcs[ctr] = c; index = ctr; ctr++;
} // Add it to color list
// Add pixel to pixeldata
if (under16colors)
{
index <<= 4;
}
pixelarray[i / div] = (byte)index;
if (!under16colors)
{
continue;
}
c = img.GetPixel((int)x + 1, (int)y);
index = Array.IndexOf(pcs, c);
if (c.A == 0)
{
index = 0;
}
if (index < 0) // If new color
{
pcs[ctr] = c; index = ctr; ctr++;
}
pixelarray[i / div] |= (byte)index;
i++;
}
// Write Intro
bz.Write((ushort)colorformat); bz.Write((ushort)ctr);
// Write Colors
for (int i = 0; i < ctr; i++)
{
bz.Write(GetRGBA5551(pcs[i])); // Write byte array.
}
// Write Pixel Data
for (uint i = 0; i < d; i++)
{
bz.Write(pixelarray[i]);
}
// Write Padding
while (pixelcolors.Length < XLIMUtil.NextLargestPow2((int)pixelcolors.Length))
{
bz.Write((byte)0);
}
// Copy to main CLIM.
pixelcolors.Position = 0; pixelcolors.CopyTo(ms);
return(7);
}