| Commit message (Collapse) | Author | Age | Files | Lines |
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This fixes the following warnings:
In file included from ass_cache.c:34:0:
ass_cache_template.h:52:0: warning: "BINSTRING" redefined
#define BINSTRING(member) \
^
In file included from ass_cache.h:59:0,
from ass_font.h:58,
from ass_cache.c:28:
ass_cache_template.h:9:0: note: this is the location of the previous definition
#define BINSTRING(member) \
^
In file included from ass_cache.c:36:0:
ass_cache_template.h:30:0: warning: "BINSTRING" redefined
#define BINSTRING(member) \
^
In file included from ass_cache.c:34:0:
ass_cache_template.h:52:0: note: this is the location of the previous definition
#define BINSTRING(member) \
^
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Rotation origin was not taken into account
when caching glyph run bitmaps.
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hspacing affects opaque box borders.
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HarfBuzz' FreeType font functions do not cache anything and call
FT_Load_Glyph all the time, which can be slow. Add a cache for metrics
and use it with custom font functions.
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Split up text into runs with the same direction, font face and font
size, shape these runs with HarfBuzz and reorder accordingly.
This noticeably improves Arabic shaping and should make shaping for many
other scripts work. HarfBuzz also does kerning for Latin text.
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Similarly to the glyph cache, subclass the bitmap cache to allow both
outline bitmaps and clipping mask bitmaps to coexist in the same cache
in a much cleaner way.
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The bitmap hash key duplicated a lot of information the glyph hash
key already saves. The subclassing introduced recently complicates
this even more. Modify the hash key to utilize a pointer to the glyph
hash value instead, which is faster and more flexible. Make sure to
always empty the bitmap cache when the glyph cache is emptied.
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Glyphs and drawings have wildly different hash keys. Subclass the hash
keys of glyphs and drawings in a new, unified outline cache. This also
fixes some issues with drawings in the glyph cache. Now, the textual
description of the drawing is included in the key (the hash value isn't
really good enough, especially not fnv32) and the baseline offset is
saved as well.
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- less code, cleaner
- decoupled from ASS_Library
- better data encapsulation
- simpler interface
- avoids a nasty hack
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Use the bitmap pointer for the cache hash key. This preserves the
blending history, which fixes occasional corruptions due to previous
replacements not being dealt with correctly. It also simplifies the
hash key a lot and thus speeds up cache lookups.
Additionally, change the blending equation from max(a, b) to min(a + b,
0xff), i.e. a saturating addition. Usually this looks a lot better.
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Add new fields to the cache hash key for BorderStyle 3 (glyph cache
and bitmap cache).
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Rename all typedefs from the convention foo_bar_t, which can possibly
conflict with POSIX types, to FooBar (and ASS_FooBar for public
API typedefs). Fix formatting and stray comments while at it.
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Remove useless _s suffix from struct names and remove struct name where
not needed (only the typedef'd struct is used). Clean up API headers.
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The shift is not calculated when fetching a glyph anymore. Instead,
it is calculated right before rasterizing a glyph. Remove the
shift vector and make get_outline_glyph, the glyph cache and
ass_font_set_transform work without supplying a shift vector.
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Rename ass_cache_template.c to ass_cache_template.h; add libass.sym to
EXTRA_DIST.
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