public void readRect(int x, int y, int w, int h, CMsgHandler handler) {
rdr.InStream is = reader.getInStream();
byte[] buf = reader.getImageBuf(16 * 16 * 4, 0);
int bg = 0;
int fg = 0;
for (int ty = y; ty < y + h; ty += 16) {
int th = Math.min(y + h - ty, 16);
for (int tx = x; tx < x + w; tx += 16) {
int tw = Math.min(x + w - tx, 16);
int tileType = is.readU8();
if ((tileType & Hextile.raw) != 0) {
is.readBytes(buf, 0, tw * th * (BPP / 8));
handler.imageRect(tx, ty, tw, th, buf, 0);
continue;
}
if ((tileType & Hextile.bgSpecified) != 0) bg = readPixel(is);
int len = tw * th;
int ptr = 0;
while (len-- > 0) buf[ptr++] = (byte) bg;
if ((tileType & Hextile.fgSpecified) != 0) fg = readPixel(is);
if ((tileType & Hextile.anySubrects) != 0) {
int nSubrects = is.readU8();
for (int i = 0; i < nSubrects; i++) {
if ((tileType & Hextile.subrectsColoured) != 0) fg = readPixel(is);
int xy = is.readU8();
int wh = is.readU8();
int sx = ((xy >> 4) & 15);
int sy = (xy & 15);
int sw = ((wh >> 4) & 15) + 1;
int sh = (wh & 15) + 1;
ptr = sy * tw + sx;
int rowAdd = tw - sw;
while (sh-- > 0) {
len = sw;
while (len-- > 0) buf[ptr++] = (byte) fg;
ptr += rowAdd;
}
}
}
handler.imageRect(tx, ty, tw, th, buf, 0);
}
}
}
static final int readPixel(rdr.InStream is) {
return is.readU8();
}