// Internal function used to get the Pix header from the current file.
ILboolean iGetPixHead(PIXHEAD *Header)
{
if (iread(Header, sizeof(PIXHEAD), 1) != 1)
return IL_FALSE;
BigUShort(&Header->Width);
BigUShort(&Header->Height);
BigUShort(&Header->OffX);
BigUShort(&Header->OffY);
BigUShort(&Header->Bpp);
return IL_TRUE;
}
// Internal function used to get the Psd header from the current file.
static ILboolean iGetPsdHead(SIO *io, PSDHEAD *Header)
{
if (SIOread(io, Header, sizeof(*Header), 1) != 1)
return IL_FALSE;
BigUShort(&Header->Version);
BigUShort(&Header->Channels);
BigUInt (&Header->Height);
BigUInt (&Header->Width);
BigUShort(&Header->Depth);
BigUShort(&Header->Mode);
return IL_TRUE;
}
// Internal function used to get the .sgi header from the current file.
ILboolean iGetSgiHead(iSgiHeader *Header)
{
if (iread(Header, sizeof(iSgiHeader), 1) != 1)
return IL_FALSE;
BigUShort(&Header->MagicNum);
BigUShort(&Header->Dim);
BigUShort(&Header->XSize);
BigUShort(&Header->YSize);
BigUShort(&Header->ZSize);
BigInt(&Header->PixMin);
BigInt(&Header->PixMax);
BigInt(&Header->Dummy1);
BigInt(&Header->ColMap);
return IL_TRUE;
}
ILuint GetShort(DICOMHEAD *Header, ILushort GroupNum)
{
ILushort Num;
iread(&Num, 1, 2);
// The 0x02 group is always little endian.
if (GroupNum == 0x02) {
UShort(&Num);
return Num;
}
// Now we have to swizzle it if it is not 0x02.
if (Header->BigEndian)
BigUShort(&Num);
else
UShort(&Num);
return Num;
}
ILboolean ParseResources(ILimage* image, ILuint ResourceSize, ILubyte *Resources)
{
ILushort ID;
ILubyte NameLen;
ILuint Size;
if (Resources == NULL) {
il2SetError(IL_INTERNAL_ERROR);
return IL_FALSE;
}
while (ResourceSize > 13) { // Absolutely has to be larger than this.
if (strncmp("8BIM", (const char*)Resources, 4)) {
//return IL_FALSE;
return IL_TRUE; // 05-30-2002: May not necessarily mean corrupt data...
}
Resources += 4;
ID = *((ILushort*)Resources);
BigUShort(&ID);
Resources += 2;
NameLen = *Resources++;
// NameLen + the byte it occupies must be padded to an even number, so NameLen must be odd.
NameLen = NameLen + (NameLen & 1 ? 0 : 1);
Resources += NameLen;
// Get the resource data size.
Size = *((ILuint*)Resources);
BigUInt(&Size);
Resources += 4;
ResourceSize -= (4 + 2 + 1 + NameLen + 4);
switch (ID)
{
case 0x040F: // ICC Profile
if (Size > ResourceSize) { // Check to make sure we are not going past the end of Resources.
il2SetError(IL_ILLEGAL_FILE_VALUE);
return IL_FALSE;
}
image->Profile = (ILubyte*)ialloc(Size);
if (image->Profile == NULL) {
return IL_FALSE;
}
memcpy(image->Profile, Resources, Size);
image->ProfileSize = Size;
break;
default:
break;
}
if (Size & 1) // Must be an even number.
Size++;
ResourceSize -= Size;
Resources += Size;
}
return IL_TRUE;
}