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Add Grayscaled image support for TLG

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This commit is contained in:
lifegpc
2025-10-29 12:15:26 +08:00
parent ad107240ef
commit df893ee594
1 changed files with 40 additions and 1 deletions
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41
ArcFormats/KiriKiri/ImageTLG.cs
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@@ -84,7 +84,7 @@ namespace GameRes.Formats.KiriKiri
}
else
{
if (4 != colors && 3 != colors)
if (4 != colors && 3 != colors && colors != 1)
return null;
offset += 12;
}
@@ -380,6 +380,14 @@ namespace GameRes.Formats.KiriKiri
prevline_index = curline;
}
}
if (1 == colors)
{
for (int i = 0; i < image_bits.Length; ++i)
{
uint gray = image_bits[i] & 0xFF;
image_bits[i] = 0xFF000000u | (gray << 16) | (gray << 8) | gray;
}
}
int stride = width * 4;
var pixels = new byte[height * stride];
Buffer.BlockCopy (image_bits, 0, pixels, 0, pixels.Length);
@@ -445,6 +453,10 @@ namespace GameRes.Formats.KiriKiri
// not first line
switch(colors)
{
case 1:
TVPTLG5ComposeColors1To4 (image_bits, current, prevline,
outbuf, outbuf_pos, width);
break;
case 3:
TVPTLG5ComposeColors3To4 (image_bits, current, prevline,
outbuf, outbuf_pos, width);
@@ -460,6 +472,17 @@ namespace GameRes.Formats.KiriKiri
// first line
switch(colors)
{
case 1:
for (int pv = 0, x = 0; x < width; x++)
{
int v = outbuf[0][outbuf_pos+x];
byte gray = (byte)(pv += v);
image_bits[current++] = gray;
image_bits[current++] = gray;
image_bits[current++] = gray;
image_bits[current++] = 0xff;
}
break;
case 3:
for (int pr = 0, pg = 0, pb = 0, x = 0;
x < width; x++)
@@ -498,6 +521,22 @@ namespace GameRes.Formats.KiriKiri
return image_bits;
}
void TVPTLG5ComposeColors1To4 (byte[] outp, int outp_index, int upper,
byte[][] buf, int bufpos, int width)
{
byte pc0 = 0;
for (int x = 0; x < width; x++)
{
byte c0 = buf[0][bufpos+x];
byte gray = (byte)(((pc0 += c0) + outp[upper]) & 0xff);
outp[outp_index++] = gray;
outp[outp_index++] = gray;
outp[outp_index++] = gray;
outp[outp_index++] = 0xff;
upper += 4;
}
}
void TVPTLG5ComposeColors3To4 (byte[] outp, int outp_index, int upper,
byte[][] buf, int bufpos, int width)
{