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Since the commit to replace abs/min/max/clamp with inline versions,
"1522 - diagramm missing above 88 pc zoom.pdf" has been missing a
diagram. This is because the diagram contains sections like:
-2147483648 -2147483648 m
-2147483648 2147483647 l
2147483647 2147483647 l
2147483647 -2147483648 l
These extreme values, when transformed would give floating point values
that when naively cast down to int, flip sign (e.g. extreme positive
when cast to int becomes extreme negative).
I had been relying on the cast down giving sane results to enable me to
use fz_clampi. Revert to using fz_clamp and all is fine.
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Instead of using macros for min/max/abs/clamp, we move to using
inline functions. These are more typesafe, and should produce
equivalent code on compilers that support inline (i.e. pretty much
everything we care about these days).
People can always do their own macro versions if they prefer.
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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.
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Don't reset the size of arrays until we have successfully resized them.
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Debug printing functions: debug -> print.
Accessors: get noun attribute -> noun attribute.
Find -> lookup when the returned value is not reference counted.
pixmap_with_rect -> pixmap_with_bbox.
We are reserving the word "find" to mean lookups that give ownership
of objects to the caller. Lookup is used in other places where the
ownership is not transferred, or simple values are returned.
The rename is done by the sed script in scripts/rename3.sed
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Code was copying the wrong structure. Thanks to Pedro Rivera
for pointing this out.
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Make fz_clone_context copy existing AA settings.
Add accessor function for fz_bitmap.
Add more documentation for various functions/types.
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Attempt to separate public API from internal functions.
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Various fixes to avoid overflow problems, division by zeros, use
of uninitialised variables etc. All from/suggested by Zenikos patch.
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The new fz_malloc_struct(A,B) macro allocates sizeof(B) bytes using
fz_malloc, and then passes the resultant pointer to Memento_label
to label it with "B".
This costs nothing in non-memento builds, but gives much nicer
listings of leaked blocks when memento is enabled.
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In builds that support configurable layers of antialiasing, move
the variables that control this into the context. This makes it
possible to safely use different levels of antialiasing in different
threads.
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Huge pervasive change to lots of files, adding a context for exception
handling and allocation.
In time we'll move more statics into there.
Also fix some for(i = 0; i < function(...); i++) calls.
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Also put the function on the same line for inline functions, so
they stick out and are easy to find with grep.
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Also turn on font hinting when rendering non-aa text.
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AA_BITS < 0 => Runtime configurable.
AA_BITS = 0 => No antialiasing
AA_BITS > 0 => At least that many bits of accuracy (to a max of 8).
If unspecified, default is 8, so old behaviour is maintained.
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The run-together words are dead! Long live the underscores!
The postscript inspired naming convention of using all run-together
words has served us well, but it is now time for more readable code.
In this commit I have also added the sed script, rename.sed, that I used
to convert the source. Use it on your patches and application code.
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