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* Added XMM register count in be_blur; should help #4811rcombs2014-02-161-2/+2
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* Use lower mm registers in be_blur.asm11rcombs2014-02-161-8/+8
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* Added license headers in ASM files11rcombs2014-02-163-0/+48
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* Don't include skipped glyphs in combined bitmapsOleg Oshmyan2014-02-121-3/+7
| | | | | | | Make sure to correctly handle situations where glyphs have info->linebreak and info->skip set at the same time. Fixes libass#44.
* Don't reset wrap_style on \rGrigori Goronzy2014-02-111-1/+1
| | | | This isn't part of a style. Fixes libass#45, GC#116.
* Font metrics: FreeType falls back to sTypoAscender/DescenderOleg Oshmyan2014-02-111-4/+8
| | | | Fixes libass#8.
* Use cluster advance in compute_string_bbox to account for \fspOleg Oshmyan2014-02-111-7/+4
| | | | Fixes libass#16 (the remaining sub-issue).
* Use a function for aligned memory allocationswm42014-02-025-25/+51
| | | | ...instead of doing this manually.
* Fix subpixel jumping of rotated glyph runsOleg Oshmyan2014-01-293-1/+8
| | | | | Rotation origin was not taken into account when caching glyph run bitmaps.
* Merge pull request #39 from grigorig/shaper-hash-optGrigori Goronzy2014-01-292-9/+14
|\ | | | | Shaper and hash function optimizations
| * Unroll FNV-1A hash functionGrigori Goronzy2014-01-291-4/+9
| | | | | | | | Unroll the hash function with Duff's device for improved performance.
| * shaper: use global features correctlyGrigori Goronzy2014-01-291-5/+5
| | | | | | | | | | | | | | start/end of feature tags is unsigned, so use the proper constant to signal to HarfBuzz that these features are global. This allows HarfBuzz to cache shape plans, and that can considerably speed up shaping, especially if many small runs need to be shaped.
* | Fixed incorrect spelling in copyright notice11rcombs2014-01-291-1/+1
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* shaper: rewrite and simplify harfbuzz shapingGrigori Goronzy2014-01-291-73/+72
| | | | | | Rewrite the core of the harfbuzz shaping function. Gets rid of the MAX_RUNS limit of runs per line and reuses a single hb_buffer_t, which should be more efficient.
* ass_utils: fix declarationswm42014-01-271-3/+3
| | | | Now they're the same as in ass_utils.h.
* ass_utils: don't include freetype headerswm42014-01-271-2/+0
| | | | They're not even used.
* Added copyright notice for xy \be blur11rcombs2014-01-271-0/+1
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* Make apply_blur and make_shadow_bitmap static; remove an unneeded local variable11rcombs2014-01-252-96/+92
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* Make sure to release each event's vector clip maskOleg Oshmyan2014-01-261-9/+6
| | | | | | | | Events with a clip mask but no text such as just Dialogue: ...,{\clip(m 47 32 )} had their clip masks carried over to the next event. Fixes GitHub issue #22.
* Simplify storage size handlingOleg Oshmyan2014-01-263-13/+4
| | | | No functional changes.
* Build: Remove references to unimplemented ARM ASM11rcombs2014-01-251-4/+0
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* Parser: don't increment render_priv->state.bm_run_id (unnecessary)11rcombs2014-01-252-15/+0
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* Added x86 ASM functions11rcombs2014-01-2511-4/+2238
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* Combine bitmaps before applying blur and shadow11rcombs2014-01-2511-336/+885
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* Merge pull request #26 from wm4/warningsGrigori Goronzy2014-01-242-8/+11
|\ | | | | Use more warning flags
| * build: add more warningswm42014-01-241-1/+3
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| * ass_strtod: use modern Cwm42014-01-241-7/+8
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* | Attempt to make code more readablewm42014-01-251-9/+11
| | | | | | | | No more double pointer dereferencing.
* | Append new cache items at the start of the collision list11rcombs2014-01-251-2/+2
| | | | | | | | | | | | | | The idea is that more recently-added cache items are more likely to get hits. Signed-off-by: wm4 <wm4@nowhere>
* | Simplify hash function11rcombs2014-01-251-7/+4
| | | | | | | | | | | | | | | | | | We can rely on fast multiplication and good compilers. v2: use default FNV-1a prime Signed-off-by: wm4 <wm4@nowhere> Signed-off-by: Grigori Goronzy <greg@chown.ath.cx>
* | fontconfig: don't compact the sorted font listOleg Oshmyan2014-01-241-1/+1
| | | | | | | | Some broken fonts are dropped by Fontconfig during compacting.
* | Start \k, \ko at exact start time, not right after itOleg Oshmyan2014-01-241-1/+1
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* Remove some ass_msg() callswm42014-01-243-38/+6
| | | | | | | These aren't very useful for debugging due to the high volume of the log output in problem cases. In fact, all they do is making the code slower (the message callback can easily appear in the profiler output, even if the callback doesn't actually print the messages).
* Allocate track array exponentiallywm42014-01-241-2/+1
| | | | This reduces the frequency of reallocations.
* Fix \fade corner casesOleg Oshmyan2014-01-151-9/+14
| | | | | | | | Times in \fade(,,,-1,fadein,fadeout,-1) are interpreted as in \fad(fadein,fadeout). Make sure we check the times in the same order as VSFilter in case they are not sorted.
* Fix \t corner casesOleg Oshmyan2014-01-151-20/+17
| | | | | The end time is reset to line duration if and only if it is zero. Negative accelerations are allowed (and can cause overflow later).
* Don't ignore trailing empty lineOleg Oshmyan2014-01-151-4/+5
| | | | | Trailing \N is effectively ignored, but \N\N should still yield an empty line.
* Fix missing pointer dereference in 1636a551Oleg Oshmyan2014-01-141-1/+1
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* Do not reset \pbo and \p values after each drawingOleg Oshmyan2014-01-083-8/+10
| | | | Confirmed with VSFilter. This complements the previous commit.
* Terminate drawings on {Oleg Oshmyan2014-01-081-7/+8
| | | | | This brings us in line with VSFilter and also fixes Google Code issue #101.
* shaper: disable ligatures for non-zero \fspOleg Oshmyan2014-01-081-7/+20
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* Distinguish cached glyphs with different hspacing when border_style == 3Oleg Oshmyan2014-01-082-0/+8
| | | | hspacing affects opaque box borders.
* Fix \fsp: use orig_scale_x, not post-fix_glyph_scaling scale_xOleg Oshmyan2014-01-081-1/+1
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* Don't try to remove end-of-line \fspOleg Oshmyan2014-01-081-4/+0
| | | | | | | | VSFilter does not do this. The code being removed was already buggy: i > 0 should have been "got any non-skipped glyphs since last_break?", and hspacing should have been taken from glyphs[i-1].
* Fix \pboOleg Oshmyan2014-01-081-7/+5
| | | | | | | | | | | | | | b61d260b attempted to add support for \p scaling to \pbo. However, while it fixed the exact sample originally reported, it broke \pbo with other \p values, including \p1, by confusing the direction of scaling and the units in which \pbo is measured. In addition, the descenders assigned to drawings have always had a wrong sign, causing lines that contain drawings with \pbo to be shifted in the wrong direction: negative \pbo raised bottom- aligned lines, while positive \pbo lowered top-aligned lines. All errors and fixes have been confirmed with VSFilter.
* Scale distance to screen plane like blur radiusOleg Oshmyan2014-01-081-1/+2
| | | | | VSFilter forgets to scale this distance, just like it forgets to scale blur radius.
* Accept colors with arbitrary sequences of leading & and HOleg Oshmyan2014-01-071-1/+5
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* A whole bunch of parsing and default value fixesOleg Oshmyan2014-01-073-119/+124
| | | | Obtained by reading the xy-VSFilter source code.
* Fix \fs+ and \fs-Oleg Oshmyan2014-01-071-2/+2
| | | | The argument is a relative amount. The unit is: \fs+1 = +10%.
* Stop animating \b and \iOleg Oshmyan2014-01-071-12/+8
| | | | Unlike what the cc635086 message says, VSFilter does not animate them.
* Stop misparsing and add support for \fscOleg Oshmyan2014-01-071-0/+4
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* Support fractional \org argumentsOleg Oshmyan2014-01-071-4/+4
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* Parse Angle overrides as floating-point numbersOleg Oshmyan2014-01-071-1/+1
| | | | This complements 5903771e.
* shaper: actually correctly handle @font advanceOleg Oshmyan2014-01-071-6/+11
| | | | | | | | | | The code was confusing glyph index and Unicode codepoint. 256df617 attempted a fix but merely moved the wrong code. Fixes Google Code issue #94. Vertical ligatures are possibly still broken, but horizontal ligatures and non-ligatures are correct now.
* Don't forget to apply \be to the last row/columnOleg Oshmyan2013-12-171-0/+4
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* Fix mismatched/out-of-bounds accesses in vertical \blurOleg Oshmyan2013-12-171-2/+2
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* Speed up \blur table generationOleg Oshmyan2013-12-121-7/+11
| | | | Based on xy-VSFilter commit 54391d3a.
* Improve blur quality: use volume 65536 and initialize left columnOleg Oshmyan2013-12-121-36/+34
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* Fix compilation with VC++ 2013Thomas Goyne2013-12-121-47/+32
| | | | | | | | | | | For whatever reason FT_Vector points[4] = { ... }; needs to come at the beginning of a scope. Since that block was duplicated, just extract it to a function. This does not include buildsystem support, so actually compiling with VC++ requires creating a project and supplying a config.h file. Signed-off-by: wm4 <wm4@nowhere>
* Added ass_font_index_magic to fix char indexes in weird encodings11rcombs2013-12-063-10/+26
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* Try to make really weird looking macro mess more understandablewm42013-11-261-9/+23
| | | | The "if (0) { // cool ;)" is just mindblowing.
* Add ass_library_version()wm42013-11-252-1/+13
| | | | | | Based on the patch by chadr123. See google code issue #113.
* Reset text origin on \fay changes for VSFilter compatibilitywm42013-10-241-2/+9
| | | | | | | | | | | | | | | | | | | | Comparing this rendering of this line: {\fnTahoma\c&H000000&\fs100\an7\fay0.115\pos(240,250)}——————–>{\fay0.0}——> To this line: {\fnTahoma\c&H000000&\fs100\an7\fay0.0\pos(240,250)}——————–>{\fay0.0}——> The second arrow is in the same place for both lines when using VSFilter, but the origin of the second shear is different when using libass. After every change in \fay or a newline, the vertical offset resets to 0. Fixes issue #80. Bug report and patch by BwackNinja (BwackNi...@gmail.com) (this commit corresponds to the patch issue_80_3.patch)
* Update version infoGrigori Goronzy2013-10-141-1/+1
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* Don't rely on events being sorted in ass_step_sub()wm42013-10-071-19/+31
| | | | | | | | | | | | ass_step_sub() assumed that the subtitle event list was sorted by event start time, but that is not guaranteed. Making the list sorted is not an option. (At least for now - too many issues are in the way to get such a change being done.) Fix this function so that it works with an unsorted event list. Semantics regarding corner cases might be slightly different, such as what happens if the now parameter coincides with event start/end, or behavior with overlapping subtitles.
* ass_shaper: changing scale_x/y starts a new glyph runwm42013-09-261-0/+2
| | | | | Since font_size is usually normalized to 256, scale_x/y has to be used for this purpose.
* Cosmetics: remove repetitionwm42013-09-261-38/+35
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* Fix Hinting againwm42013-09-263-29/+49
| | | | | | | | | | | | Commit 05eb520 missed some duplicated bits in ass_shaper.c. <wm4> oh crap <zgreg> oh crap indeed Instead of duplicating the logic in ass_shaper.c, just change the glyphs before they even get into processing. This way, all code reading the font size etc. is affected. This essentially reverts commit c207000c, because it's not needed anymore.
* Skip both newline and carriage return.Reimar Döffinger2013-09-251-3/+5
| | | | | | | | '\r' characters weren't skipped correctly. SKIP_SYMBOL from original patch renamed to IS_SKIP_SYMBOL. Signed-off-by: wm4 <wm4@nowhere>
* Restore hintingwm42013-09-242-3/+17
| | | | | | | | | | | | | | | | | | | This was broken since commit f780146. For reasons why, read the commit message of that commit. To make it short, we set the font size to something large and constant (256), and scale the font outlines returned by freetype to the size we need in order to get smooth animation and accurate positioning. Of course, this obviously breaks hinting. Fix hinting by not using the hack mentioned above if hinting enabled. To mitigate the issues caused by freetype grid fitting and extremely bad ASS scripts (such as setting font size to very small values and scaling them up with \fscx/y), we still adjust the font size such that the font is never scaled in Y direction (only in X direction, because the \fscx/y tags can change aspect ratio). Also see google code issue #46.
* enca: fix memory leakwangkun2013-09-241-0/+5
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* Fix fribidi include pathwm42013-07-172-3/+1
| | | | | The old include statement works only by coincidence, and will actually break the build on certain setups.
* Document insane (xy-)vsfilter color semanticswm42013-07-061-13/+67
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* Fix OS/2 usWinDescent/usWinAscent for quirky fontsGrigori Goronzy2013-07-061-3/+4
| | | | | | | | Some fonts stuff a signed, negative value into this unsigned field. This usually causes very small and wrongly positioned rendering. Also handle usWinAscent similarly, just in case. Fixes issue #106.
* Don't mutate input buffer for ass_read_memory()wm42013-06-231-4/+11
| | | | | | | | | | | | | | | Fixes google code issue #88. process_text() garbles the memory as the text is parsed. This also fixes that the user provided buffer implicitly had to be null terminated. This wasn't obvious, because the caller passes in the buffer length. libass ignored the buffer length (unless a codepage was provided and iconv was enabled), and happily read past the end of the buffer. It would be much nicer if the parsing code would be fixed, instead of just copying the input buffer. Maybe one day.
* Remove unused variableswm42013-06-222-7/+1
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* Allow different ASS_Library for ASS_Track and ASS_Rendererwm42013-06-221-3/+0
| | | | | | | | | | | Remove the explicit check whether the ASS_Track and ASS_Renderer were created from the same ASS_Library object. Logging will not be entirely consistent (some log messages go to the ASS_Track library when rendering), but otherwise it works. ASS_Library also contains embedded fonts added with ass_add_font(). It looks like the renderer will use the fonts from the ASS_Renderer library object.
* Parse style names like VSFilter doesOleg Oshmyan2013-06-222-9/+21
| | | | | | Trim '*' from the start of style name fields of Style and Dialogue lines and normalize the case of "Default" in the style name field of Dialogue lines.
* Fix \r style lookupOleg Oshmyan2013-06-223-1/+22
| | | | | Make \rSTYLENAME with an invalid STYLENAME fall back to line style rather than to Default. This fixes issue #104.
* Fix blur scalingwm42013-06-221-0/+2
| | | | | | | | | Commit 0e1702ad7a6a827d "Add ass_set_storage_size and fix related scaling issues" attempted to fix blur scaling. This breaks blur scaling for players which don't call ass_set_storage_size(). This commit reverts the default behavior to the old behavior. The behavior when ass_set_storage_size() is called should be unchanged.
* Improve font mismatch messagewm42013-06-221-5/+12
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