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Add pdfioObjGetLength function.

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This commit is contained in:
Michael R Sweet
2021-05-08 19:16:27 -04:00
parent f8f048b87a
commit 4e4c47ab33
3 changed files with 42 additions and 25 deletions
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28
pdfio-stream.c
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@@ -150,7 +150,6 @@ _pdfioStreamOpen(pdfio_obj_t *obj, // I - Object
pdfio_stream_t *st; // Stream
pdfio_dict_t *dict = pdfioObjGetDict(obj);
// Object dictionary
size_t length; // Length of stream
// Allocate a new stream object...
@@ -165,33 +164,12 @@ _pdfioStreamOpen(pdfio_obj_t *obj, // I - Object
_pdfioFileSeek(st->pdf, obj->stream_offset, SEEK_SET);
if ((length = (size_t)pdfioDictGetNumber(dict, "Length")) == 0)
if ((st->remaining = pdfioObjGetLength(obj)) == 0)
{
// Length must be an indirect reference...
pdfio_obj_t *lenobj; // Length object
if ((lenobj = pdfioDictGetObject(dict, "Length")) == NULL)
{
_pdfioFileError(obj->pdf, "Unable to get length of stream.");
free(st);
return (NULL);
}
if (lenobj->value.type == PDFIO_VALTYPE_NONE)
_pdfioObjLoad(lenobj);
if (lenobj->value.type != PDFIO_VALTYPE_NUMBER || lenobj->value.value.number <= 0.0f)
{
_pdfioFileError(obj->pdf, "Unable to get length of stream.");
free(st);
return (NULL);
}
length = (size_t)lenobj->value.value.number;
free(st);
return (NULL);
}
st->remaining = length;
if (decode)
{
// Try to decode/decompress the contents of this object...