/// <summary>
/// P7(ｸﾞﾚー+ｱﾙﾌｧー)
/// </summary>
/// <param name="buf"></param>
/// <param name="pnm"></p
private Xi.ぉ[] ﾚﾍﾞﾙ7灰透を読み込む(ref byte[] buf, PNM pnm)
{
pnm.現在位置 = 0;
var r = new Xi.ぉ[pnm.Width * pnm.Height];
int po = 0;
int bo = 0;
int ps = pnm.Maxval > 255 ? 2 : 1;
for (int y = 0; y < pnm.Height; ++y)
{
for (int x = 0; x < pnm.Width; ++x)
{
if (ps == 1)
{
var b = buf[bo];
var a = buf[bo + 1];
r[po++] = new Xi.ぉ(b, b, b, a);
}
else
{
var b = buf[bo] | buf[bo + 1] << 8;
var a = buf[bo + 2] | buf[bo + 3] << 8;
r[po++] = new Xi.ぉ(b, b, b, a);
}
bo += ps * 2;
}
}
return(r);
}
/// <summary>
/// P7(ﾍﾞｯﾄﾑｯﾋﾟ+ｱﾙﾌｧー)
/// </summary>
/// <param name="buf"></param>
/// <param name="pnm"></param>
/// <returns></returns>
private Xi.ぉ[] ﾚﾍﾞﾙ7白黒透を読み込む(ref byte[] buf, PNM pnm)
{
pnm.現在位置 = 0;
var r = new Xi.ぉ[pnm.Width * pnm.Height];
int po = 0;
int bo = 0;
int ps = pnm.Maxval > 255 ? 4 : 2;
for (int y = 0; y < pnm.Height; ++y)
{
for (int x = 0; x < pnm.Width; ++x)
{
if (ps == 2)
{
var c = buf[bo] == 0 ? 0x00 : 0xff;
var a = buf[bo + 1];
r[po++] = new Xi.ぉ(c, c, c, a);
}
else
{
var a = (buf[bo] | buf[bo + 1] << 8) == 0 ? 0x00 : 0xff;
var c = (buf[bo + 2] | buf[bo + 3] << 8);
r[po++] = new Xi.ぉ(c, c, c, a);
}
bo += ps;
}
}
return(r);
}
/// <summary>
/// P7(ﾍﾞｯﾄﾑｯﾋﾟ)
/// </summary>
/// <param name="buf"></param>
/// <param name="pnm"></param>
/// <returns></returns>
private Xi.ぉ[] ﾚﾍﾞﾙ7白黒を読み込む(ref byte[] buf, PNM pnm)
{
pnm.現在位置 = 0;
var r = new Xi.ぉ[pnm.Width * pnm.Height];
int po = 0;
int bo = 0;
int ps = pnm.Maxval > 255 ? 2 : 1;
for (int y = 0; y < pnm.Height; ++y)
{
for (int x = 0; x < pnm.Width; ++x)
{
if (ps == 1)
{
var b = buf[bo] == 0 ? 0x00 : 0xFF;
r[po++] = new Xi.ぉ(b, b, b);
}
else
{
var b = (buf[bo] | buf[bo + 1] << 8) == 0 ? 0x00 : 0xFF;
r[po++] = new Xi.ぉ(b, b, b);
}
bo += ps;
}
}
return(r);
}
/// <summary>
/// P7(RGBA)
/// </summary>
/// <param name="buf"></param>
/// <param name="pnm"></param>
/// <returns></returns>
private Xi.ぉ[] ﾚﾍﾞﾙ7赤緑青透を読み込む(ref byte[] buf, PNM pnm)
{
pnm.現在位置 = 0;
var r = new Xi.ぉ[pnm.Width * pnm.Height];
int po = 0;
int bo = 0;
int ps = pnm.Maxval > 255 ? 2 : 1;
for (int y = 0; y < pnm.Height; ++y)
{
for (int x = 0; x < pnm.Width; ++x)
{
if (ps == 1)
{
r[po++] = new Xi.ぉ(buf[bo++], buf[bo++], buf[bo++], buf[bo++]);
}
else
{
r[po++] = new Xi.ぉ(
buf[bo++] | buf[bo++] << 8,
buf[bo++] | buf[bo++] << 8,
buf[bo++] | buf[bo++] << 8,
buf[bo++] | buf[bo++] << 8);
}
}
}
return(r);
}
/// <summary>
/// P4ﾋﾞｯﾄﾏｯﾌﾟを原色に変換する
/// </summary>
/// <param name="buf"></param>
/// <param name="pnm"></param>
/// <returns></returns>
private Xi.ぉ[] ﾚﾍﾞﾙ4を読み込む(ref byte[] buf, PNM pnm)
{
pnm.現在位置 = 0;
var r = new Xi.ぉ[pnm.Width * pnm.Height];
int po = 0;
int bo = 0;
var xpad = pnm.Width % 8;
for (int y = 0; y < pnm.Height; ++y)
{
for (int x = 0; x < pnm.Width; x += 8)
{
var b = buf[bo];
int bits = 8;
if ((pnm.Width - x < 8) && xpad != 0)
{
bits = xpad;
}
for (int i = 0; i < bits; ++i)
{
r[po++] = ぁゃιぃ(masken[i], b);
}
bo++;
}
}
return(r);
}
/// <summary>
/// 平文ﾋﾟｸｾﾙを読み込む
/// </summary>
/// <param name="buf"></param>
/// <param name="pnm"></param>
/// <returns></returns>
private Xi.ぉ[] 平文ﾋﾟｸｾﾙ読み込み(byte[] buf, PNM pnm)
{
pnm.現在位置 = 0;
int cp = 0;
var r = new Xi.ぉ[pnm.Width * pnm.Height];
var kr = new Xi.ぉ(0, 0, 0);
for (int i = 0; i < r.Count(); ++i)
{
var q = pnm.Format == PNM.形式.P1 ? ReadEPixel(ref buf, pnm) : ReadTPixel(ref buf, pnm);
if (null == q)
{
break;
}
r[i] = new Xi.ぉ(0, 0, 0, 0xFF);
switch (pnm.Format)
{
case PNM.形式.P1:
var v = (q.Value == 0) ? 0xff : 0x00;
r[i].ぃ(v, v, v);
break;
case PNM.形式.P2:
r[i].ぃ(q.Value, q.Value, q.Value);
break;
case PNM.形式.P3:
r[i].R = q.Value;
r[i].G = ReadTPixel(ref buf, pnm).Value;
r[i].B = ReadTPixel(ref buf, pnm).Value;
break;
}
if (cp++ >= r.Length)
{
break;
}
}
return(r);
}
