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make WebPEncodingSetError() take a const picture

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This is a border-case situation: the picture is not const, because
we're change its error status. But taking it non-const forces
the caller to carry a non-const picture all around the code just
in case (0.00001% of the time?) something bad happen.
This pretty much the same as making all objects non-const because
we'll eventually call delete or free() on them, which is quite a
non-const operation. Well... Better allow constness enforcement for
the remaining 99.9999% of the code.

Change-Id: I9b93892a189a50feaec1a3a518ebf488eb6ff22f
This commit is contained in:
Pascal Massimino
2012-05-22 02:51:38 -07:00
parent 638528cd1e
commit fa8bc3dbca
2 changed files with 4 additions and 3 deletions
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5
src/enc/webpenc.c
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@ -306,10 +306,11 @@ static void StoreStats(VP8Encoder* const enc) {
WebPReportProgress(enc, 100); // done!
}
int WebPEncodingSetError(WebPPicture* const pic, WebPEncodingError error) {
int WebPEncodingSetError(const WebPPicture* const pic,
WebPEncodingError error) {
assert((int)error < VP8_ENC_ERROR_LAST);
assert((int)error >= VP8_ENC_OK);
pic->error_code = error;
((WebPPicture*)pic)->error_code = error;
return 0;
}