public void TestGenerateGraphics3()
{
// Ensure that when a sub-palette (4-color palette) doesn't have a first color
// that matches the theme BackColor (ie: the first color of the first palette),
// then the graphics generation still works as expected, using the theme BackColor
// rather than the first sub-palette color.
byte[] palData =
{
0x00, 0x00, 0xFF, 0x7F, 0x55, 0x62, 0xB0, 0x49,
0xF0, 0xF0, 0x5A, 0x73, 0xB0, 0x49, 0x2C, 0x39, // Sub-palette used
0x00, 0x00, 0xD3, 0x7E, 0x20, 0x78, 0x00, 0x3C,
0x00, 0x00, 0xDE, 0x3F, 0x9E, 0x02, 0x1B, 0x00
};
byte[] gfx =
{
0x00, 0x00, 0x00, 0x07, 0x07, 0x18, 0x0F, 0x30,
0x0B, 0x20, 0x0B, 0x60, 0x0B, 0x60, 0x3F, 0x40
};
Tile2bppProperties properties = new Tile2bppProperties {
SubPaletteIndex = 4
};
this.TestGenerateGraphics(palData, gfx, properties);
}
private void TestGenerateGraphics(byte[] palData, byte[] gfx, Tile2bppProperties properties)
{
byte[] palsData = new byte[512];
Buffer.BlockCopy(palData, 0, palsData, 0, palData.Length);
Palettes pals = new Palettes(palsData);
byte props = properties.GetByte();
Tile2bpp tile = new Tile2bpp(gfx, pals, props);
Tile2bpp tile2 = new Tile2bpp(new byte[gfx.Length], pals, props);
tile2.Bitmap = tile.Bitmap; // Trigger graphics update
Assert.AreEqual(gfx, tile2.Graphics);
}
public void TestPropertiesGetByte()
{
for (int i = 0; i <= 0xFF; i++)
{
byte value = (byte)i;
if ((value & 0x3) != 0)
{
Assert.Throws(typeof(ArgumentOutOfRangeException), delegate { new Tile2bppProperties(value); });
}
else
{
Tile2bppProperties properties = new Tile2bppProperties(value);
Assert.AreEqual(i, properties.GetByte());
}
}
}
public static Bitmap GetBitmapFrom2bppPlanar(byte[] gfx, Palettes palettes, Tile2bppProperties properties)
{
// Each tile is made up of 8x8 pixels, coded on 16 bytes (2 bits per pixel)
Palette palette = palettes[properties.PaletteIndex];
int subPalIndex = properties.SubPaletteIndex;
TileFlip flip = properties.Flip;
Bitmap bitmap = new Bitmap(Tile.Size, Tile.Size, PixelFormat.Format32bppPArgb);
FastBitmap fBitmap = new FastBitmap(bitmap);
for (int y = 0; y < Tile.Size; y++)
{
byte val1 = gfx[y * 2];
byte val2 = gfx[y * 2 + 1];
for (int x = 0; x < Tile.Size; x++)
{
int mask = 1 << x;
int colorIndex = ((val1 & mask) >> x) + (((val2 & mask) >> x) << 1);
if (colorIndex > 0) // If pixel is not transparent
{
int xPos = (flip & TileFlip.X) != 0 ?
x : (Tile.Size - 1) - x;
int yPos = (flip & TileFlip.Y) == 0 ?
y : (Tile.Size - 1) - y;
Color color = palette[subPalIndex + colorIndex];
fBitmap.SetPixel(xPos, yPos, color);
}
}
}
fBitmap.Release();
return(bitmap);
}
