decode method
Implementation
Image decode(InputBuffer p) {
image = Image(width, height);
for (var tileY = 0, ti = 0; tileY < tilesY; ++tileY) {
for (var tileX = 0; tileX < tilesX; ++tileX, ++ti) {
_decodeTile(p, tileX, tileY);
}
}
return image!;
}