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* Fix crazy VSFilter behavior for \move tagwm42013-03-201-1/+9
| | | | Fixes issue 90 (both cases).
* Make closing ')' optional for some ASS tagswm42013-01-121-5/+5
| | | | | | | | | It appears VSFilter generally accepts the tag anyway if closing ')' are missing in tags like \pos(1,2). Since they're not strictly needed anyway, make the last ')' optional in order to make parsing more tolerant against broken subs. Fixes issue #79.
* Fix a wrong condition.Xidorn Quan2012-12-141-1/+1
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* Terminate drawings immediately on a \p0 tagwm42012-09-291-20/+2
| | | | | | | | | | | | | | | | The parsing code allowed override tags after \p0 to affect the drawing. This is incorrect. Finish the drawing object as soon as \p0 is encountered instead. This requires moving the code executing the style overrides from get_next_char() in ass_parse.c to the main render loop in ass_renderer.c, because we have to re-enter the rendering loop inside of a tag. The old code was simply executing all tags until a new character could be returned to the renderer loop, mutating up the state (RenderContext fields) for the drawing after the drawing was closed, but before it was rendered. This fixes libass issue #47.
* Fix resetting border style with \rSTYLEwm42012-09-291-2/+2
| | | | | | | | | With \rSTYLE, it is possible to change the border style within the same subtitle event. You can do this by setting a different BorderStyle value in the newly requested style. VSFilter handles this as expected, while libass uses a single border style for the whole subtitle event. This fixes libass issue #56.
* Refactor and fix border generationGrigori Goronzy2012-04-211-19/+30
| | | | | Make sure to update the border appropriately in the second pass, after parsing.
* Support \rSTYLENAME syntaxGrigori Goronzy2012-03-111-1/+12
| | | | | This allows to reset to a certain style, instead of the default style for the current line. For some reason, this was completely missing.
* Fix off-by-one error in \fad, \fadeGrigori Goronzy2011-08-291-4/+5
| | | | | | | | | | Typical greater vs. greater-or-equal case. This especially fixes fades with zero delays. A zero delay in the two-argument form means no fade at all, but previously this faded over a single frame, since the code used "greater" semantics, while "greater or equal" is required here. Notably, this avoids blinking/flickering in some tightly timed karaoke scripts.
* Use the "font encoding" property as a base direction hintGrigori Goronzy2011-07-151-0/+5
| | | | | | | | | | ASS specifies a "font encoding", both in the styles as well as with the \fe override tag. This font encoding is very Windows-specific and libass doesn't use it for charmap matching or anything like that. However, it can be useful for hinting the base direction of text. Make Hebrew and Arabic encodings switch to RTL base direction, other languages to LTR and use neutral base direction for the autodetect setting.
* Separate event parsing and layoutGrigori Goronzy2011-07-041-6/+7
| | | | | | Split up the combined event parsing and layout loop into two passes. State information needed for layout are duplicated in GlyphInfo structures.
* Introduce bitmap runsGrigori Goronzy2011-07-041-0/+13
| | | | | | | | Prepare for run-based rendering. In the parser, increment a run id according to relevant style changes (color, border, shadow, etc.) to mark the points where a new bitmap needs to be started. Modify the line wrapper to increment the run ids of each glyph after a break. Add functions to calculate the render size of runs for rasterization.
* Use bare outlines for drawingsGrigori Goronzy2011-06-201-6/+2
| | | | | | | This finally gets rid of the nasty hack that manipulated a glyph we somehow got from FreeType. Simplifies drawing handling a bit and decouples drawing code from all font handling and related (fontconfig, etc.) code.
* refactor: move karaoke effect parsing into event parserGrigori Goronzy2011-06-061-0/+71
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* Match first occurence of \fade, \fad, \an and \a tagsGrigori Goronzy2011-05-301-9/+18
| | | | | Track if we already parsed a fade or a alignment tag and ignore all further tags.
* Add support for \fs+ and \fs- syntaxGrigori Goronzy2010-08-121-0/+16
| | | | | | | These forms can be used to add or subtract a value from the current font size instead of setting a new font size. Animations are supported, but not recommended, as they won't be fluid due to grid-fitting/hinting.
* Get rid of NULL checks for freeGrigori Goronzy2010-08-091-2/+1
| | | | | The useless "if (foo) free(foo)" idiom is all over the place, just get rid of it finally...
* Fix drawing leakage: delay glyph allocationGrigori Goronzy2010-08-091-3/+4
| | | | | | Delay allocation of the "faux" glyph until a drawing is parsed. This helps with fixing a (pretty bad) memory leak and also reduces frame overhead a little.
* Raise verbosity level of "unknown transition effect" messageGrigori Goronzy2010-08-011-1/+1
| | | | This is more irritating than it helps and can seriously spam output.
* Fix potential, small memory leakGrigori Goronzy2010-07-291-0/+1
| | | | | Free clip vector drawing if multiple clip vectors appear in a single line. (In this case the last clip vector is used.)
* Parse vector clip mask only after cache missGrigori Goronzy2010-07-291-14/+0
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* Limit debug output on parsing errorsGrigori Goronzy2010-07-191-1/+1
| | | | Limit context printed after parsing errors to 30 characters
* Handle simple backquotingClément Bœsch2010-05-221-0/+8
| | | | This allows this kind of subtitle to be displayed: \{Hello World\}
* Basic @font supportGrigori Goronzy2010-04-111-3/+9
| | | | | | Do not skip '@' at the start of a font name in styles; detect '@' at font name start and set a new attribute in ASS_Font accordingly. Rotate affected glyphs after loading and calculate a suitable advance.
* Fix leftovers from conversion to ass_strtodYuriy M. Kaminskiy2010-01-121-1/+1
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* Remove support for freetype < 2.2.1Grigori Goronzy2010-01-081-6/+0
| | | | | Get rid of compatibility #ifdefs and some code to support very old versions of freetype. libass now requires at least version 2.2.1.
* Fix libass w/o fontconfigGrigori Goronzy2009-10-111-13/+13
| | | | | | | | | Make sure that libass does not crash even if no default font is provided. Additionally, fix crashes related to drawings in this and possibly other unusual cases. Document the default_path and default_family parameters of ass_set_fonts.
* Remove superfluous castGrigori Goronzy2009-10-081-1/+1
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* Fix alpha calculation in some casesGrigori Goronzy2009-10-021-2/+2
| | | | | Picked up from XBMC svn. This should especially fix MPlayer's direct3d video output (untested).
* Refactor: effect parsing should be in ass_parse.cGrigori Goronzy2009-09-161-0/+75
| | | | | Move the function apply_transition_effects, which parses event-global effects and adjusts a few state variables, into ass_parse.c.
* Refactor: move event parsing code into separate fileGrigori Goronzy2009-09-011-0/+857
Move all code related to parsing event lines and processing override tags into a separate file (ass_parse.c).
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