private static void XGA_DrawCmd(/*Bitu*/ int val, /*Bitu*/ int len) {
/*Bit16u*/ int cmd;
cmd = val >> 13;
// if (XGA_SHOW_COMMAND_TRACE)
// Log.log_msg("XGA: Draw command %x", cmd);
xga.curcommand = val;
switch (cmd) {
case 1: /* Draw line */
if ((val & 0x100) == 0) {
if ((val & 0x8) == 0) {
if (XGA_SHOW_COMMAND_TRACE) Log.log_msg("XGA: Drawing Bresenham line");
XGA_DrawLineBresenham(val);
} else {
if (XGA_SHOW_COMMAND_TRACE) Log.log_msg("XGA: Drawing vector line");
XGA_DrawLineVector(val);
}
} else {
Log.log_msg("XGA: Wants line drawn from PIX_TRANS register!");
}
break;
case 2: /* Rectangle fill */
if ((val & 0x100) == 0) {
xga.waitcmd.wait = false;
if (XGA_SHOW_COMMAND_TRACE)
Log.log_msg(
StringHelper.sprintf(
"XGA: Draw immediate rect: xy(%3d/%3d), len(%3d/%3d)",
new Object[] {
new Integer(xga.curx),
new Integer(xga.cury),
new Integer(xga.MAPcount),
new Integer(xga.MIPcount)
}));
XGA_DrawRectangle(val);
} else {
xga.waitcmd.newline = true;
xga.waitcmd.wait = true;
xga.waitcmd.curx = xga.curx;
xga.waitcmd.cury = xga.cury;
xga.waitcmd.x1 = xga.curx;
xga.waitcmd.y1 = xga.cury;
xga.waitcmd.x2 = (/*Bit16u*/ int) ((xga.curx + xga.MAPcount) & 0x0fff);
xga.waitcmd.y2 = (/*Bit16u*/ int) ((xga.cury + xga.MIPcount + 1) & 0x0fff);
xga.waitcmd.sizex = xga.MAPcount;
xga.waitcmd.sizey = xga.MIPcount + 1;
xga.waitcmd.cmd = 2;
xga.waitcmd.buswidth = VGA.vga.mode | ((val & 0x600) >> 4);
xga.waitcmd.data = 0;
xga.waitcmd.datasize = 0;
if (XGA_SHOW_COMMAND_TRACE)
Log.log_msg(
StringHelper.sprintf(
"XGA: Draw wait rect, w/h(%3d/%3d), x/y1(%3d/%3d), x/y2(%3d/%3d), %4x",
new Object[] {
new Integer(xga.MAPcount + 1),
new Integer(xga.MIPcount + 1),
new Integer(xga.curx),
new Integer(xga.cury),
new Integer((xga.curx + xga.MAPcount) & 0x0fff),
new Integer((xga.cury + xga.MIPcount + 1) & 0x0fff),
new Integer(val & 0xffff)
}));
}
break;
case 6: /* BitBLT */
if (XGA_SHOW_COMMAND_TRACE) Log.log_msg("XGA: Blit Rect");
XGA_BlitRect(val);
break;
case 7: /* Pattern fill */
if (XGA_SHOW_COMMAND_TRACE)
Log.log_msg(
StringHelper.sprintf(
"XGA: Pattern fill: src(%3d/%3d), dest(%3d/%3d), fill(%3d/%3d)",
new Object[] {
new Integer(xga.curx),
new Integer(xga.cury),
new Integer(xga.destx),
new Integer(xga.desty),
new Integer(xga.MAPcount),
new Integer(xga.MIPcount)
}));
XGA_DrawPattern(val);
break;
default:
Log.log_msg("XGA: Unhandled draw command " + Integer.toString(cmd, 16));
break;
}
}
