void test_base16( ezpwd::asserter &assert )
{
std::string deadbeef( "deadbeef" );
std::string nibbles( "\x0d\x0e\x0a\x0d\x0b\x0e\x0e\x0f" );
base16::decode( deadbeef );
if ( assert.ISEQUAL( std::string() << u8vec_t( deadbeef.begin(), deadbeef.end() ),
std::string() << u8vec_t( nibbles.begin(), nibbles.end() )))
std::cout << assert << std::endl;
base16::encode( deadbeef );
if ( assert.ISEQUAL( deadbeef, std::string( "DEADBEEF" )))
std::cout << assert << std::endl;
}
static
Rawimage*
readslave(Header *header, int colorspace)
{
Rawimage *image;
int nseg, i, H, V, m, n;
uchar *b;
soiheader(header);
nseg = 0;
image = nil;
header->buf = jpgmalloc(header, 4096, 0);
header->nbuf = 4096;
while(header->err[0] == '\0'){
nseg++;
n = readsegment(header, &m);
b = header->buf;
switch(m){
case -1:
return image;
case APPn+0:
if(nseg==1 && strncmp((char*)b, "JFIF", 4)==0) /* JFIF header; check version */
if(b[5]>1 || b[6]>2)
sprint(header->err, "ReadJPG: can't handle JFIF version %d.%2d", b[5], b[6]);
break;
case APPn+1: case APPn+2: case APPn+3: case APPn+4: case APPn+5:
case APPn+6: case APPn+7: case APPn+8: case APPn+9: case APPn+10:
case APPn+11: case APPn+12: case APPn+13: case APPn+14: case APPn+15:
break;
case DQT:
quanttables(header, b, n);
break;
case SOF:
case SOF2:
header->Y = int2(b, 1);
header->X = int2(b, 3);
header->Nf =b[5];
for(i=0; i<header->Nf; i++){
header->comp[i].C = b[6+3*i+0];
nibbles(b[6+3*i+1], &H, &V);
if(H<=0 || V<=0)
jpgerror(header, "non-positive sampling factor (Hsamp or Vsamp)");
header->comp[i].H = H;
header->comp[i].V = V;
header->comp[i].Tq = b[6+3*i+2];
}
header->mode = m;
header->sf = b;
break;
case SOS:
header->ss = b;
switch(header->mode){
case SOF:
image = baselinescan(header, colorspace);
break;
case SOF2:
progressivescan(header, colorspace);
break;
default:
sprint(header->err, "unrecognized or unspecified encoding %d", header->mode);
break;
}
break;
case DHT:
huffmantables(header, b, n);
break;
case DRI:
header->ri = int2(b, 0);
break;
case COM:
break;
case EOI:
if(header->mode == SOF2)
image = progressiveIDCT(header, colorspace);
return image;
default:
sprint(header->err, "ReadJPG: unknown marker %.2x", m);
break;
}
}
return image;
}
