private void WritePPMImage(CgData cg, string path)
{
if (File.Exists(path)) {
File.Delete(path);
}
using (FileStream fs = File.Create(path)) {
WriteText(fs, "P3\n");
WriteText(fs, cg.width + " " + cg.height + "\n");
WriteText(fs, "255\n");
for (int j = 0; j < cg.height; ++j) {
for (int i = 0; i < cg.width; ++i) {
int pixel = cg.data[j * cg.width + i];
if (i != 0)
WriteText(fs, " ");
WriteText(fs, cg.pallet.red[pixel] + " ");
WriteText(fs, cg.pallet.green[pixel] + " ");
WriteText(fs, cg.pallet.blue[pixel] + "");
}
WriteText(fs, "\n");
}
}
}
public static CgData Extract(DriObject dri)
{
CgData cg = new CgData();
VspHeader header = ExtractHeader(dri);
// プレーン型のデータは 1 byte で 8 pixels を表現
cg.type = CgType.VSP;
cg.pallet = GetPallet(dri, header);
cg.data = ExtractImageData(dri, header);
cg.x = header.x0 * 8;
cg.y = header.y0;
cg.width = header.width * 8;
cg.height = header.height;
cg.palletBank = header.palletBank;
return cg;
}
public CgData LoadCg(DriObject dri)
{
CgType type = this.CheckCgFormat(dri);
CgData data;
switch(type)
{
case CgType.VSP:
data = VspFormat.Extract(dri);
break;
default:
// dummy
data = new CgData();
data.type = type;
data.x = 10;
data.y = 10;
break;
}
return data;
}