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NES PPU - more code cleanup/small speedups

This commit is contained in:
andres.delikat 2011-09-04 16:29:48 +00:00
parent 2e1f064424
commit 6b3d217691
1 changed files with 4 additions and 11 deletions
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15
BizHawk.MultiClient/NEStools/NESPPU.cs
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@ -62,8 +62,7 @@ namespace BizHawk.MultiClient
private byte GetBit(int address, int bit)
{
byte value = PPUBus[address];
return (byte)(((value >> (7 - bit)) & 1));
return (byte)(((PPUBus[address] >> (7 - bit)) & 1));
}
unsafe void Generate()
@ -114,13 +113,9 @@ namespace BizHawk.MultiClient
b1 = GetBit((z * 0x1000) + (i * 256) + (j * 16) + y + 1 * 8, x);
value = (byte)(b0 + (b1 << 1));
cvalue = Nes.LookupColor(Nes.ppu.PALRAM[value + (pal * 4)]);
Color color = Color.FromArgb(cvalue);
int adr = (x + (j * 8)) + (y + (i * 8)) * (bmpdata.Stride / 4);
framebuf[adr + (z * 128)] = color.ToArgb();
framebuf[adr + (z * 128)] = cvalue;
}
}
}
@ -168,10 +163,9 @@ namespace BizHawk.MultiClient
b1 = GetBit(PatAddr + y + 1 * 8, x);
value = (byte)(b0 + (b1 << 1));
cvalue = Nes.LookupColor(Nes.ppu.PALRAM[16 + value + (Palette << 2)]);
Color color = Color.FromArgb(cvalue);
int adr = (x + (r * 8 * 2)) + (y + (n * 8 * 3)) * (bmpdata2.Stride / 4);
framebuf2[adr] = color.ToArgb();
framebuf2[adr] = cvalue;
}
if (is8x16)
{
@ -182,10 +176,9 @@ namespace BizHawk.MultiClient
b1 = GetBit(PatAddr + y + 1 * 8, x);
value = (byte)(b0 + (b1 << 1));
cvalue = Nes.LookupColor(Nes.ppu.PALRAM[16 + value + (Palette << 2)]);
Color color = Color.FromArgb(cvalue);
int adr = (x + (r * 8 * 2)) + ((y+8) + (n * 8 * 3)) * (bmpdata2.Stride / 4);
framebuf2[adr] = color.ToArgb();
framebuf2[adr] = cvalue;
}
PatAddr -= 0x10;
}