public void RenderSpriteToScreen(int* screen, int stride, int destx, int desty, ScreenInfo si, int spritenum, OAMInfo oam = null, int xlimit = 1024, int ylimit = 1024, byte[,] spriteMap = null)
{
var dims = new[] { SNESGraphicsDecoder.ObjSizes[si.OBSEL_Size, 0], SNESGraphicsDecoder.ObjSizes[si.OBSEL_Size, 1] };
if(oam == null)
oam = new OAMInfo(this, si, spritenum);
var dim = dims[oam.Size];
int[] tilebuf = _tileCache[4];
int baseaddr;
if (oam.Table == 0)
baseaddr = si.OBJTable0Addr;
else
baseaddr = si.OBJTable1Addr;
//TODO - flips of 'undocumented' rectangular oam settings are wrong. probably easy to do right, but we need a test
int bcol = oam.Tile & 0xF;
int brow = (oam.Tile >> 4) & 0xF;
for(int oy=0;oy<dim.Height;oy++)
for (int ox = 0; ox < dim.Width; ox++)
{
int x = ox;
int y = oy;
int dy, dx;
if (oam.HFlip)
dx = dim.Width - 1 - x;
else dx = x;
if (oam.VFlip)
dy = dim.Height - 1 - y;
else dy = y;
dx += destx;
dy += desty;
if(dx>=xlimit || dy>=ylimit || dx<0 || dy<0)
continue;
int col = (bcol + (x >> 3)) & 0xF;
int row = (brow + (y >> 3)) & 0xF;
int sx = x & 0x7;
int sy = y & 0x7;
int addr = baseaddr*2 + (row * 16 + col) * 64;
addr += sy * 8 + sx;
int dofs = stride*dy+dx;
int color = tilebuf[addr];
if (spriteMap != null && color == 0)
{
//skip transparent pixels
}
else
{
screen[dofs] = color;
Paletteize(screen, dofs, oam.Palette * 16 + 128, 1);
Colorize(screen, dofs, 1);
if (spriteMap != null) spriteMap[dx, dy] = (byte)spritenum;
}
}
}
public void RenderSpriteToScreen(int *screen, int stride, int destx, int desty, ScreenInfo si, int spritenum, OAMInfo oam = null, int xlimit = 1024, int ylimit = 1024, byte[,] spriteMap = null)
{
var dims = new[] { SNESGraphicsDecoder.ObjSizes[si.OBSEL_Size, 0], SNESGraphicsDecoder.ObjSizes[si.OBSEL_Size, 1] };
if (oam == null)
{
oam = new OAMInfo(this, si, spritenum);
}
var dim = dims[oam.Size];
int[] tilebuf = _tileCache[4];
int baseaddr;
if (oam.Table == 0)
{
baseaddr = si.OBJTable0Addr;
}
else
{
baseaddr = si.OBJTable1Addr;
}
//TODO - flips of 'undocumented' rectangular oam settings are wrong. probably easy to do right, but we need a test
int bcol = oam.Tile & 0xF;
int brow = (oam.Tile >> 4) & 0xF;
for (int oy = 0; oy < dim.Height; oy++)
{
for (int ox = 0; ox < dim.Width; ox++)
{
int x = ox;
int y = oy;
int dy, dx;
if (oam.HFlip)
{
dx = dim.Width - 1 - x;
}
else
{
dx = x;
}
if (oam.VFlip)
{
dy = dim.Height - 1 - y;
}
else
{
dy = y;
}
dx += destx;
dy += desty;
if (dx >= xlimit || dy >= ylimit || dx < 0 || dy < 0)
{
continue;
}
int col = (bcol + (x >> 3)) & 0xF;
int row = (brow + (y >> 3)) & 0xF;
int sx = x & 0x7;
int sy = y & 0x7;
int addr = baseaddr * 2 + (row * 16 + col) * 64;
addr += sy * 8 + sx;
int dofs = stride * dy + dx;
int color = tilebuf[addr];
if (spriteMap != null && color == 0)
{
//skip transparent pixels
}
else
{
screen[dofs] = color;
Paletteize(screen, dofs, oam.Palette * 16 + 128, 1);
Colorize(screen, dofs, 1);
if (spriteMap != null)
{
spriteMap[dx, dy] = (byte)spritenum;
}
}
}
}
}
