| Age | Commit message (Collapse) | Author |
|---|
|
|
|
In preparation for work on progressive loading, update the exception
handling scheme slightly.
Until now, exceptions (as thrown with fz_throw, and caught with
fz_try/fz_catch) have merely had an informative string. They have
never had anything that can be compared to see if an error is of
a particular type.
We now introduce error codes; when we fz_throw, we now always
give an error code, and can optionally (using fz_throw_message)
give both an error code and an informative string.
When we fz_rethrow from within a fz_catch, both the error code and
the error message is maintained. Using fz_rethrow_message we can
'improve' the error message, but the code is maintained.
The error message can be read out using fz_caught_message() and the
error code can be read as fz_caught().
Currently we only define a 'generic' error. This will expand in future
versions to include other error types that may be tested for.
|
|
|
|
|
|
To prepare for color management, we have to make the device colorspaces
per-context and able to be overridden by users.
|
|
In order to be able to output images (either in the pdfwrite device or
in the html conversion), we need to be able to get to the original
compressed data stream (or else we're going to end up recompressing
images). To do that, we need to expose all of the contents of pdf_image
into fz_image, so it makes sense to just amalgamate the two.
This has knock on effects for the creation of indexed colorspaces,
requiring some of that logic to be moved.
Also, we need to make xps use the same structures; this means pushing
PNG and TIFF support into the decoding code. Also we need to be able
to load just the headers from PNG/TIFF/JPEGs as xps doesn't include
dimension/resolution information.
Also, separate out all the fz_image stuff into fitz/res_image.c rather
than having it in res_pixmap.
|
|
The issues fixed here were found by zeniko - many thanks.
The patch here is our own work - larger change, avoiding casts
for a (hopefully) neater result.
|
|
Thanks to zeniko for pointing out this fix.
|
|
|
|
When we allocate a pixmap > 2G, but < 4G, the index into that
pixmap, when calculated as an int can be negative. Fix this with
various casts to unsigned int.
If we ever move to support >4G images we'll need to rejig the
casting to cast each part of the element to ptrdiff_t first.
|
|
When coping with missing transparency entries, fill with 255,
not 0. Simplify code slightly so we fill completely, not just
to depth.
|
|
If entries are larger than they need to be, accept just the amount
we need. If not large enough, pad out with zeros.
|
|
Attempt to separate public API from internal functions.
|
|
|
|
|
