) Did some cracking work on this too.
if HasAlpha then begin // skip for ATC_RGB
sIn.Read(dw, 4); // read dword
for i := 0 to 7 do begin
alpha[i] := (dw and $F) * 17;
dw := dw shr 4;
end;
sIn.Read(dw, 4); // read dword
for i := 8 to 15 do begin
alpha[i] := (dw and $F) * 17;
dw := dw shr 4;
end;
// alpha[0..15] now contain the scaled 4x4 pixel block alpha values
end;
sIn.Read(w, 2); // read a word, key1
Method := (w shr 15);
Keys[iR, 0] := ((w and $7C00) shr 10) * (255/31);
Keys[iG, 0] := ((w and $03E0) shr 5) * (255/31);
Keys[iB, 0] := (w and $001F) * (255/31);
sIn.Read(w, 2); // read a word, key2
Keys[iR, 1] := ((w and $F800) shr 11) * (255/31);
Keys[iG, 1] := ((w and $07E0) shr 5) * (255/63);
Keys[iB, 1] := (w and $001F) * (255/31);
sIn.Read(mixdown, 4); // read a dword, mixdown values
for i := 0 to 15 do begin
pixels[i] := (mixdown and $3);
mixdown := mixdown shr 2;
end;
// pixels[0..15] now contain the still-encoded 4x4 pixel block mixdown values mixdown 00 01 02 03
value 10 20 30 40for i := 0 to 15 do begin
a := alpha[i];
if (method = 0) then begin
r := Round( Keys[iR, 0] + ((pixels[i] / 3) * (Keys[iR, 1] - Keys[iR, 0])) );
g := Round( Keys[iG, 0] + ((pixels[i] / 3) * (Keys[iG, 1] - Keys[iG, 0])) );
b := Round( Keys[iB, 0] + ((pixels[i] / 3) * (Keys[iB, 1] - Keys[iB, 0])) );
end else begin
case pixels[i] of
0: begin
r := 0;
g := 0;
b := 0;
end;
1: begin
r := Round( Keys[iR, 0] - ((1/4) * Keys[iR, 1]) );
g := Round( Keys[iG, 0] - ((1/4) * Keys[iG, 1]) );
b := Round( Keys[iB, 0] - ((1/4) * Keys[iB, 1]) );
end;
2: begin
r := Round( Keys[iR, 0] );
g := Round( Keys[iG, 0] );
b := Round( Keys[iB, 0] );
end;
3: begin
r := Round( Keys[iR, 1] );
g := Round( Keys[iG, 1] );
b := Round( Keys[iB, 1] );
end;
end;
end;
end; Magic: DWORD; // 0x31435451 : "QTC1"
Magic2: DWORD; // always 1 ?
Width: DWORD;
Height: DWORD;
Format: DWORD; // 0x14, 0x15
Dummy1: DWORD; // formerly known as Unknown1, may be 0 - Jan 7, 2009
PayloadSize: DWORD; // formerly known as Unknown2 - Jan 7, 2009
Dummy3: DWORD; // formerly known as Unknown3, may be 0 - Jan 7, 2009 Magic: DWORD; // 0xCCC40002
Width: DWORD;
Height: DWORD;
Format: DWORD; // ATC_FORMAT, 0x01 for RGB, 0x02 for RGBA_EXPLICIT_ALPHA, 08/Jan/2009
Magic3: DWORD; // 0x20 ... mucks up colors... not clear?
Magic4: DWORD; // 0x01, 08/Jan/2009
Magic5: DWORD; // 0x01, 08/Jan/2009
FormatMagic: DWORD; // 0x8C92 for RGB, 0x8C93 for RGBA_EXPLICIT_ALPHA, 08/Jan/2009 Magic: DWORD; // 0x31434643 : 'CFC1'
Format: DWORD; // CFC_FORMAT...
Width: DWORD;
Height: DWORD;
CompressedSize: DWORD;
UnCompressedSize: DWORD;
... compressed data ... CFC_FORMAT_COMPRESSED_QTC_RGBA_EXPLICIT_ALPHA = 0x3001; // 0x14 from QTC
CFC_FORMAT_COMPRESSED_QTC_RGB = 0x3002; // 0x15 from QTC - used since CFC 0.3
CFC_FORMAT_COMPRESSED_RGBA = 0x3101; // April 20, 2009 - RGBA format - used since CFC 0.5
CFC_FORMAT_COMPRESSED_RGB = 0x3102; // April 20, 2009 - RGB format - used since CFC 0.5// CFC 0.60 additional formats
CFC_FORMAT_COMPRESSED_QTC_8_8_8_8 = 0x3003;
CFC_FORMAT_COMPRESSED_QTC_X_8_8_8 = 0x3004;
CFC_FORMAT_COMPRESSED_QTC_5_6_5 = 0x3005;
CFC_FORMAT_COMPRESSED_QTC_4_4_4_4 = 0x3007;cfc -qa 7d3f1247_manila 7d3f1247_manila.atccfc -qaf orgfiles atcfiles00ad7edb_manila.atc
056e5c7f_manila.atc
063f5858_manila.atc
0c175082_manila.atc
2255b55f_manila.atc
24720929_manila.atc
39064485_manila.atc
4a209508_manila.atccfc -aqf atcfolder qtcfolder orgfoldercfc -nsf vgapngfolder qvgapngfoldercfc -cf qvgaqtcfolder qvgacfcfolder
