void MrwDecoder::parseHeader() {
const unsigned char* data = mFile->getData(0);
if (mFile->getSize() < 30)
ThrowRDE("Not a valid MRW file (size too small)");
if (!isMRW(mFile))
ThrowRDE("This isn't actually a MRW file, why are you calling me?");
data_offset = get4BE(data,4)+8;
if (!mFile->isValid(data_offset))
ThrowRDE("MRW: Data offset is invalid");
// Make sure all values have at least been initialized
raw_width = raw_height = packed = 0;
wb_coeffs[0] = wb_coeffs[1] = wb_coeffs[2] = wb_coeffs[3] = NAN;
uint32 currpos = 8;
while (currpos < data_offset) {
uint32 tag = get4BE(data,currpos);
uint32 len = get4BE(data,currpos+4);
switch(tag) {
case 0x505244: // PRD
raw_height = get2BE(data,currpos+16);
raw_width = get2BE(data,currpos+18);
packed = (data[currpos+24] == 12);
case 0x574247: // WBG
for(uint32 i=0; i<4; i++)
wb_coeffs[i] = (float)get2BE(data, currpos+12+i*2);
break;
case 0x545457: // TTW
// Base value for offsets needs to be at the beginning of the TIFF block, not the file
FileMap *f = new FileMap(mFile->getDataWrt(currpos+8), mFile->getSize()-currpos-8);
if (little == getHostEndianness())
tiff_meta = new TiffIFDBE(f, 8);
else
tiff_meta = new TiffIFD(f, 8);
delete f;
break;
}
currpos += MAX(len+8,1); // MAX(,1) to make sure we make progress
}
}
/*
* Dump the contents of a packet to stdout.
*/
static void dumpPacket(const unsigned char* packetBuf, const char* srcName,
const char* dstName)
{
const unsigned char* buf = packetBuf;
char prefix[3];
u4 length, id;
u1 flags, cmdSet=0, cmd=0;
JdwpError error = ERR_NONE;
bool reply;
int dataLen;
length = get4BE(buf+0);
id = get4BE(buf+4);
flags = get1(buf+8);
if ((flags & kJDWPFlagReply) != 0) {
reply = true;
error = static_cast<JdwpError>(get2BE(buf+9));
} else {
reply = false;
cmdSet = get1(buf+9);
cmd = get1(buf+10);
}
buf += kJDWPHeaderLen;
dataLen = length - (buf - packetBuf);
if (!reply) {
prefix[0] = srcName[0];
prefix[1] = '>';
} else {
prefix[0] = dstName[0];
prefix[1] = '<';
}
prefix[2] = '\0';
int min, sec;
getCurrentTime(&min, &sec);
if (!reply) {
printf("%s REQUEST dataLen=%-5u id=0x%08x flags=0x%02x cmd=%d/%d [%02d:%02d]\n",
prefix, dataLen, id, flags, cmdSet, cmd, min, sec);
printf("%s --> %s\n", prefix, getCommandName(cmdSet, cmd));
} else {
printf("%s REPLY dataLen=%-5u id=0x%08x flags=0x%02x err=%d (%s) [%02d:%02d]\n",
prefix, dataLen, id, flags, error, dvmJdwpErrorStr(error), min,sec);
}
if (dataLen > 0)
printHexDump2(buf, dataLen, prefix);
printf("%s ----------\n", prefix);
}