Coverity issue(s)

[jackun]

1. Statement is always false:

jpeg-compressor/jpgd.cpp

Line 779 in aeb7d3b

if ((index & 0x10) > 0x10)

And just in case this is not a false positive:
2) Overrunning array jpgd::g_ZAG of 64 4-byte elements at element index 64 (byte offset 259) using index kt++ (which evaluates to 64).

jpeg-compressor/jpgd.cpp

Line 1533 in aeb7d3b

p[g_ZAG[kt++]] = 0;

[richgel999]

Thank you, I'll add a logical and against 63 here to silence Coverity. I've seen the 2nd issue before, this statement should prevent the problem but I'll add the logical and in the loop to be sure:

if ((k + r) > 63)
stop_decoding(JPGD_DECODE_ERROR);

[jackun]

Then I think the 2nd issue has been fixed already

jpeg-compressor/jpgd.cpp

Lines 1525 to 1526 in aeb7d3b

	if ((k + r) > 63)
	stop_decoding(JPGD_DECODE_ERROR);