public static unsafe LCDBitmap Load(Bitmap bmp)
{
LCDBitmap lcdbmp = new LCDBitmap(bmp.Width, bmp.Height);
BitmapData data = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadOnly, bmp.PixelFormat);
int bpp = Bitmap.GetPixelFormatSize(bmp.PixelFormat) / 8;
byte* fpix = (byte*)data.Scan0;
Parallel.For(0, bmp.Height, py =>
{
byte* line = fpix + (py * data.Stride);
for (int px = 0; px < bmp.Width; px++)
{
byte b = 255, g = 255, r = 255, a = 0;
if (bmp.Palette.Entries.Length > 0)
{
Color col = bmp.Palette.Entries[line[px * bpp]];
b = col.B;
g = col.G;
r = col.R;
a = col.A;
}
else
{
if (bpp == 1)
{
b = g = r = line[px * bpp];
}
else if (bpp == 3 || bpp == 4)
{
b = line[px * bpp];
g = line[(px + 1) * bpp];
r = line[(px + 2) * bpp];
if (bpp == 4)
{
a = line[(px + 3) * bpp];
}
}
}
if (a == 0)
{
lcdbmp.Buffer[px, py] = -1;
}
else if (r == 0 && g == 0 && b == 0)
{
lcdbmp.Buffer[px, py] = 1;
}
else
{
lcdbmp.Buffer[px, py] = 0;
}
}
});
bmp.UnlockBits(data);
return lcdbmp;
}
public void Draw(LCDBitmap bmp)
{
int[,] oldbuffer = Buffer.GetBuffer();
int[,] buffer = bmp.GetBuffer();
// Compute changes, draw whats changed
for (int memy = 0; memy < 32; memy++)
{
int[][] data = new int[16][];
int firstchanged = -1;
int lastchanged = -1;
for (int memx = 0; memx < 16; memx++)
{
int posx = memx * 16;
int posy = memy;
if (posx >= 128)
{
posy += 32;
posx -= 128;
}
int dold1 = GetBufferData(oldbuffer, posx, posy);
int dold2 = GetBufferData(oldbuffer, posx + 8, posy);
int dnew1 = GetBufferData(buffer, posx, posy);
int dnew2 = GetBufferData(buffer, posx + 8, posy);
data[memx] = new int[] { dnew1, dnew2 };
if (dnew1 != dold1 || dnew2 != dold2)
{
if (firstchanged == -1)
{
firstchanged = memx;
}
lastchanged = memx;
}
}
// Draw
if (firstchanged != -1)
{
WriteInstruction(128 + memy);
WriteInstruction(128 + firstchanged);
for (int memx = firstchanged; memx <= lastchanged; memx++)
{
WriteData(data[memx][0]);
WriteData(data[memx][1]);
}
}
}
Buffer.DrawLCDBitmap(bmp, 0, 0, 0, 0, 128, 64);
}
public LCD12864(DigitalPin en, DigitalPin rs, DigitalPin rw, DigitalPin rst, DigitalPin[] d)
{
EN = en;
RS = rs;
RW = rw;
RST = rst;
DB = d;
EN.SetIOMode(PinMode.Output);
EN.DigitalWrite(0);
RS.SetIOMode(PinMode.Output);
RW.SetIOMode(PinMode.Output);
for (int i = 0; i < 8; i++)
{
DB[i].SetIOMode(PinMode.Output);
}
RST.SetIOMode(PinMode.Output);
RST.DigitalWrite(0);
Wrapper.delayMicroseconds(10);
RST.DigitalWrite(1);
Wrapper.delay(100);
WriteInstruction(Convert.ToInt32("00110000", 2)); // Function set
WriteInstruction(Convert.ToInt32("00110000", 2)); // Function set
WriteInstruction(Convert.ToInt32("00001100", 2)); // Display on/off
WriteInstruction(Convert.ToInt32("00000001", 2)); // Display clear
WriteInstruction(Convert.ToInt32("00000110", 2)); // Entry mode set
WriteInstruction(Convert.ToInt32("00110100", 2)); // Extended Mode
WriteInstruction(Convert.ToInt32("00110110", 2)); // Graphics mode
// Screen clear
Buffer = new LCDBitmap(128, 64, 1);
Draw(new LCDBitmap(128, 64, 0));
}
public void DrawLCDBitmap(LCDBitmap src, int srcposx, int srcposy, int destposx, int destposy, int sx, int sy)
{
for (int x = 0; x < sx; x++)
{
for (int y = 0; y < sy; y++)
{
int val = src.GetPixel(srcposx + x, srcposy + y);
if (val != -1)
{
SetPixel(destposx + x, destposy + y, val);
}
}
}
}
public LCDBitmapFont(string name, string file, string[][] charmap)
{
Name = name;
if (Fonts.ContainsKey(name))
{
Characters = Fonts[name].Characters;
}
else
{
Bitmap bmp = new Bitmap(file);
int ofsy = 0;
for (int chary = 0; chary < charmap.Length; chary++)
{
int lineheight = 0;
for (int liney = ofsy; liney < bmp.Height; liney++)
{
Color col = bmp.GetPixel(0, liney);
if (col.R == 0 && col.G == 255 && col.B == 0)
{
break;
}
else
{
lineheight++;
}
}
int ofsx = 0;
for (int charx = 0; charx < charmap[chary].Length; charx++)
{
int charwidth = 0;
for (int posx = ofsx; posx < bmp.Width; posx++)
{
Color col = bmp.GetPixel(posx, ofsy);
if (col.R == 0 && col.G == 255 && col.B == 0)
{
break;
}
else
{
charwidth++;
}
}
LCDBitmap charbmp = new LCDBitmap(charwidth, lineheight);
for (int posy = 0; posy < lineheight; posy++)
{
for (int posx = 0; posx < charwidth; posx++)
{
Color col = bmp.GetPixel(ofsx + posx, ofsy + posy);
charbmp.SetPixel(posx, posy, (col.R == 0 && col.G == 0 && col.B == 0) ? 1 : 0);
}
}
Characters.Add(charmap[chary][charx], charbmp);
ofsx += charwidth + 1;
}
ofsy += lineheight + 1;
}
Fonts[name] = this;
}
}
