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This commit is contained in:
zeromus 2012-10-01 00:18:33 +00:00
parent d7a5c87e0a
commit a87a5c96b2
1 changed files with 80 additions and 0 deletions
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80
BizHawk.Emulation/Consoles/Nintendo/SNES/SNESGraphicsDecoder.cs
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@ -17,6 +17,18 @@ namespace BizHawk.Emulation.Consoles.Nintendo.SNES
public unsafe class SNESGraphicsDecoder
{
public class PaletteSelection
{
public PaletteSelection() { }
public PaletteSelection(int start, int size)
{
this.start = start;
this.size = size;
}
public int start, size;
}
public struct Dimensions
{
public Dimensions(int w, int h) { Width = w; Height = h; }
@ -69,6 +81,11 @@ namespace BizHawk.Emulation.Consoles.Nintendo.SNES
/// </summary>
public int SCSIZE;
/// <summary>
/// which Mode this BG came from
/// </summary>
public int Mode;
/// <summary>
/// the address of the screen data
/// </summary>
@ -114,6 +131,12 @@ namespace BizHawk.Emulation.Consoles.Nintendo.SNES
return new Dimensions(ScreenSizeInTiles.Width * TileSize, ScreenSizeInTiles.Height * TileSize);
}
}
/// <summary>
/// returns information about what colors could possibly be used for this bg
/// </summary>
public PaletteSelection PaletteSelection;
}
public class BGInfos
@ -193,6 +216,63 @@ namespace BizHawk.Emulation.Consoles.Nintendo.SNES
si.BG.BG3.TDADDR = LibsnesDll.snes_peek_logical_register(LibsnesDll.SNES_REG.BG3_TDADDR);
si.BG.BG4.TDADDR = LibsnesDll.snes_peek_logical_register(LibsnesDll.SNES_REG.BG4_TDADDR);
for (int i = 1; i <= 4; i++)
si.BG[i].Mode = si.Mode.MODE;
//determine which colors each BG could use
switch (si.Mode.MODE)
{
case 0:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 32);
si.BG.BG2.PaletteSelection = new PaletteSelection(32, 32);
si.BG.BG3.PaletteSelection = new PaletteSelection(64, 32);
si.BG.BG4.PaletteSelection = new PaletteSelection(96, 32);
break;
case 1:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 32);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
case 2:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 0);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
case 3:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 256);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 0);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
case 4:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 256);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 32);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 0);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
case 5:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 32);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 0);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
case 6:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 32);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 0);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
case 7:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 256);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 0);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
}
return si;
}
}