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nulib2
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Removed C++-style comments, and fixed up some other comments.

This commit is contained in:
Andy McFadden 2002-09-27 18:50:04 +00:00
parent 809f26783f
commit 105c85fcd6
1 changed files with 9 additions and 8 deletions
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17
nufxlib-0/Squeeze.c
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@ -6,9 +6,9 @@
*
* Huffman/RLE "squeeze" compression, based on SQ/USQ. This format is
* listed in the NuFX documentation, but to my knowledge has never
* actually been used (until now). Not surprisingly, P8 ShrinkIt v3.2
* doesn't handle the format correctly, so this is really only useful
* as an experiment.
* actually been used (until now). Neither P8 ShrinkIt v3.4 nor II Unshrink
* handle the format correctly, so this is really only useful as an
* experiment.
*
* The algorithm appears to date back to the CP/M days. This implementation
* is based on "xsq"/"xusq" v1.7u by Richard Greenlaw (from December 1982).
@ -483,7 +483,7 @@ Nu_SQScale(SQState* pSqState, int ceiling)
sum += pSqState->node[i].weight;
}
divisor = ovflw + 1;
divisor = ovflw + 1; /* use the high 16 bits of the sum */
/* Ensure no non-zero values are lost */
increased = false;
@ -497,7 +497,7 @@ Nu_SQScale(SQState* pSqState, int ceiling)
}
} while(increased);
/* Scaling factor choosen, now scale */
/* scaling factor choosen and minimums are set; now do the downscale */
if (divisor > 1) {
for (i = 0; i < kNuSQNumVals; i++)
pSqState->node[i].weight /= divisor;
@ -789,7 +789,7 @@ Nu_CompressHuffmanSQ(NuArchive* pArchive, NuStraw* pStraw, FILE* fp,
BailError(err);
compressedLen += 4;
//DBUG(("TREE %d: %d %d\n", j, l, r));
/*DBUG(("TREE %d: %d %d\n", j, l, r));*/
}
/*
@ -943,8 +943,10 @@ Nu_ExpandHuffmanSQ(NuArchive* pArchive, const NuRecord* pRecord,
/*
* Read the header. We assume that the header is less than
* kNuGenCompBufSize bytes, which is pretty fair since the buffer is
* currently a hundred times larger than the longest possible header.
* currently 20x larger than the longest possible header (sq allowed
* 300+ for the filename, plus 257*2 for the tree, plus misc).
*/
Assert(kNuGenCompBufSize > 1200);
#ifdef FULL_SQ_HEADER
err = Nu_USQReadShort(&usqState, &magic);
BailError(err);
@ -1008,7 +1010,6 @@ Nu_ExpandHuffmanSQ(NuArchive* pArchive, const NuRecord* pRecord,
int val;
uchar lastc;
// printf("dib=%ld cr=%ld\n", usqState.dataInBuffer, compRemaining);
if (usqState.dataInBuffer < 65 && compRemaining) {
/*
* Less than 256 bits, but there's more in the file.