private Bitmap GetPattern(int addr)
{
Bitmap bmp = new Bitmap(8, 8);
for (int y = 0; y < 8; ++y)
{
for (int x = 0; x < 8; ++x)
{
int addr1 = addr + y;
int addr2 = addr + y + 8;
// Note: patternhigh should be same for both here
byte b1 = ppu.PatternTables[Ppu.PatternHigh(addr1)][Ppu.PatternLow(addr1)];
byte b2 = ppu.PatternTables[Ppu.PatternHigh(addr2)][Ppu.PatternLow(addr2)];
byte bit1 = (byte)((b1 >> (7 - x)) & 0x1);
byte bit2 = (byte)((b2 >> (7 - x)) & 0x1);
byte result = (byte)(bit2 << 1 | bit1);
int color;
if (result == 3)
{
color = 0xFF << 24 | 0xFF0000;
}
else if (result == 2)
{
color = 0xFF << 24 | 0x00FF00;
}
else if (result == 1)
{
color = 0xFF << 24 | 0x0000FF;
}
else
{
color = 0;
}
if (result == 0)
{
bmp.SetPixel(x, y, Color.FromArgb(0, 0, 0, 0));
}
else
{
bmp.SetPixel(x, y, Color.FromArgb(color));
}
/*if (result == 0)
* bmp.SetPixel(x, y, Color.FromArgb(0, 0, 0, 0));
* else
* {
* int paletteEntry = ppu.Read(paletteAddr + result) % 64; // todo: bits
* bmp.SetPixel(x, y, Color.FromArgb(0xFF << 24 | Palette[paletteEntry]));
* }*/
}
}
return(bmp);
}
private Bitmap GetPattern(int addr, int paletteAddr)
{
Bitmap bmp = new Bitmap(8, 8);
for (int y = 0; y < 8; ++y)
{
for (int x = 0; x < 8; ++x)
{
int addr1 = addr + y;
int addr2 = addr + y + 8;
byte b1 = ppu.PatternTables[Ppu.PatternHigh(addr1)][Ppu.PatternLow(addr1)];
byte b2 = ppu.PatternTables[Ppu.PatternHigh(addr2)][Ppu.PatternLow(addr2)];
byte bit1 = (byte)((b1 >> (7 - x)) & 0x1);
byte bit2 = (byte)((b2 >> (7 - x)) & 0x1);
byte result = (byte)(bit2 << 1 | bit1);
/*byte intensity;
* if (result == 3)
* intensity = 255;
* else if (result == 2)
* intensity = 160;
* else if (result == 1)
* intensity = 80;
* else
* intensity = 0;
*
* if (result == 0)
* bmp.SetPixel(x, y, Color.FromArgb(0,0,0,0));
* else
* bmp.SetPixel(x, y, Color.FromArgb(intensity, intensity, intensity));*/
if (result == 0)
{
bmp.SetPixel(x, y, System.Drawing.Color.FromArgb(0, 0, 0, 0));
}
else
{
int paletteEntry = ppu.Read(paletteAddr + result) % 64; // todo: bits
bmp.SetPixel(x, y, System.Drawing.Color.FromArgb(0xFF << 24 | Palette[paletteEntry]));
}
}
}
return(bmp);
}