kmx git

Commit	Date	Message
c8d8e158	2017-09-30T14:28:58	Signedness fixes in bitmap presetting. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3514. * src/raster/ftrend1.c (ft_raster1_render): Exlicitly signed height. * src/smooth/ftsmooth.c (ft_smooth_render_generic): Ditto. * src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Explicitly unsigned subtraction.
ae7dc1f6	2017-09-28T22:59:31	[smooth, raster] Miscellaneous cleanups. * src/raster/ftrend1.c (ft_raster1_render): Clean up the exit. * src/smooth/ftsmooth.c (ft_smooth_render_generic): Reduce translations and clean up the exit. (ft_smooth_render_lcd, ft_smooth_render_lcd): Remove unused `error'..
61d1818b	2017-09-28T00:20:50	Bitmap metrics presetting [1/2]. This mainly just extracts the code for presetting the bitmap metrics from the monochrome, grayscale, and LCD renderers into a separate function. * src/base/ftobjs.c (ft_glyphslot_preset_bitmap): New function that calculates prespective bitmap metrics for the given rendering mode. * include/freetype/internal/ftobjs.h (ft_glyphslot_preset_bitmap): Declare it. * src/base/ftlcdfil.c (ft_lcd_padding): New helper function that adds padding to CBox taking into account pecularities of LCD rendering. * include/freetype/ftlcdfil.h (ft_lcd_padding): Declare it. * src/raster/ftrend1.c (ft_raster1_render): Reworked to use `ft_glyphslot_preset_bitmap'. * src/smooth/ftsmooth.c (ft_smooth_render_generic): Ditto. (ft_smooth_render_lcd, ft_smooth_render_lcd): The pixel_mode setting is moved to `ft_glyphslot_preset_bitmap'.
02e80da6	2017-09-24T22:18:34	Tweak per-face LCD filtering controls. Thing are simpler with a NULL-function pointer. * include/freetype/internal/ftobjs.h (FT_Face_InternalRec): New pointer to the filter function. (FT_LibraryRec): Remove unused `lcd_filter'. (FT_Bitmap_LcdFilterFunc, ft_lcd_filter_fir): Move from here... * include/freetype/ftlcdfil.h (FT_Bitmap_LcdFilterFunc, ft_lcd_filter_fir): ... to here. * src/base/ftobjs.c (ft_open_face_internal): NULL-initialize the per-face filter. (FT_Face_Properties): Set it. * src/smooth/ftsmooth.c (ft_smooth_render_generic): Simplify. * src/base/ftlcdfil.c (ft_lcd_filter_fir, FT_Libary_SetLcdFilter): Minor.
39ce3ac4	2017-09-16T19:08:17	* Version 2.8.1 released. ========================= Tag sources with `VER-2-8-1'. * docs/VERSION.TXT: Add entry for version 2.8.1. * docs/CHANGES: Updated. * README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj, builds/windows/vc2005/index.html, builds/windows/vc2008/freetype.vcproj, builds/windows/vc2008/index.html, builds/windows/vc2010/freetype.vcxproj, builds/windows/vc2010/index.html, builds/windows/visualc/freetype.dsp, builds/windows/visualc/freetype.vcproj, builds/windows/visualc/index.html, builds/windows/visualce/freetype.dsp, builds/windows/visualce/freetype.vcproj, builds/windows/visualce/index.html, builds/wince/vc2005-ce/freetype.vcproj, builds/wince/vc2005-ce/index.html, builds/wince/vc2008-ce/freetype.vcproj, builds/wince/vc2008-ce/index.html: s/2.8/2.8.1/, s/28/281/. * include/freetype/freetype.h (FREETYPE_PATCH): Set to 1. * builds/unix/configure.raw (version_info): Set to 21:0:15. * CMakeLists.txt (VERSION_PATCH): Set to 1.
410f3799	2017-03-09T00:08:38	[smooth] Harmony LCD rendering. This is a new technology for LCD-optimized rendering. It capitalizes on the fact that each color channel grid is shifted by a third of a pixel. Therefore it is logical to render 3 separate monochrome bitmaps shifting the outline by 1/3 pixel, and then combine them. Importantly, the resulting output does not require additional LCD filtering. * src/smooth/ftsmooth.c (ft_smooth_render_generic) [!FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Implement new LCD-optimized rendering. * include/freetype/ftlcdfil.h, include/freetype/freetype.h, include/freetype/config/ftoption.h, devel/ftoption.h: Updated documentation.
5710ef98	2017-08-08T22:00:35	* src/smooth/ftsmooth.c (ft_smooth_render_generic): Clean up.
7b727833	2017-06-17T23:28:14	[base, smooth] LCD filtering cleanups. * src/base/ftlcdlil.c (ft_lcd_filter_fir, _ft_lcd_filter_legacy): Clean up, start filtering from the bottom-left origin. * src/smooth/ftsmooth.c (ft_smooth_render_generic): Updated.
dcd8de27	2017-06-09T11:21:58	/: Remove `OVERFLOW_' prefix. This increases readability.
cd02d359	2017-06-01T17:05:39	[smooth] Some 32bit integer overflow run-time errors. * src/smooth/ftgrays.c [STANDALONE] (OVERFLOW_ADD_LONG, OVERFLOW_SUB_LONG, OVERFLOW_MUL_LONG, NEG_LONG): New macros. [!STANDALONE]: Include FT_INTERNAL_CALC_H. (gray_render_cubic): Use those macros where appropriate.
ab2599ea	2017-05-20T00:35:21	[smooth] Implement minimal dynamic padding for LCD filtering. Extra bitmap padding for LCD filtering depends on the filter. The default 5-tap filter needs 2 extra subpixels. The light 3-tap filter needs only 1 extra subpixel. This space could be already available due to rounding. In order to optimize the padding, we now expand CBox for the given filter weights before rounding. This change breakes current Skia (and Firefox). * include/freetype/internal/ftobjs.h (FT_LibraryRec) [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Remove `lcd_extra' field. * src/base/ftlcdfil.c (FT_Library_SetLcdFilterWeights, FT_Library_SetLcdFilter): Remove `lcd_extra' initializations. * src/smooth/ftsmooth.c (ft_smooth_render_generic): Implement dymanic LCD padding.
e99b26aa	2017-05-14T21:57:27	Remove remnants of raster pool. * include/freetype/internal/ftobjs.h (FT_LibraryRec): Remove `raster_pool' and `raster_pool_size' fields. * src/base/ftobjs.c (FT_New_Library), src/raster/ftrend1.c (ft_raster1_init), src/smooth/ftsmooth.c (ft_smooth_init): Updated.
ba40054c	2017-05-02T12:32:19	[autofit] Remove `slight' auto-hint mode again. A poll on freetype-devel favoured changes directly applied to `light'. * include/freetype/freetype.h (FT_LOAD_TARGET_SLIGHT, FT_RENDER_MODE_SLIGHT): Removed. * src/autofit/afcjk.c (af_cjk_hints_init), src/autofit/aflatin.c (af_latin_hints_init), src/autofit/aflatin2.c (af_latin2_hints_init): Revert change from 2017-04-22. * src/autofit/afloader.c (af_loader_load_glyph) Remove references to FT_RENDER_MODE_SLIGHT. [AF_CONFIG_OPTION_TT_SIZE_METRICS]: Enable TrueType-like metrics unconditionally. * src/base/ftadvanc.c (LOAD_ADVANCE_FAST_CHECK): Revert change from 2017-04-22. * src/base/ftobjs.c (FT_Load_Glyph): Revert change from 2017-04-22. * src/pshinter/pshalgo.c (ps_hints_apply): Revert change from 2017-04-22. * src/smooth/ftsmooth.c (ft_smooth_render): Revert change from 2017-04-22. * docs/CHANGES: Updated.
5aa6716a	2017-04-22T13:27:21	Add new `slight' auto-hinting mode. This mode uses fractional advance widths and doesn't scale glyphs horizontally, only applying vertical scaling and hinting. At the same time, the behaviour of the `light' auto-hinter gets restored for backwards compatibility: Both vertical and horizontal scaling is again based on rounded metrics values (this was changed in a commit from 2017-03-30 as a side effect). To be more precise, the behaviour is restored for TrueType fonts only; for other font formats like Type 1, this is a new feature of the `light' hinting mode. * include/freetype/freetype.h (FT_LOAD_TARGET_SLIGHT): New macro. (FT_RENDER_MODE_SLIGHT): New render mode. * include/freetype/internal/ftobjs.h (FT_Size_InternalRec): Add `autohint_mode' and `autohint_metrics' fields. * src/autofit/afcjk.c (af_cjk_hints_init), src/autofit/aflatin.c (af_latin_hints_init), src/autofit/aflatin2 (af_latin2_hints_init): Updated. * src/autofit/afloader.c (af_loader_embolden_glyph_in_slot): Use `autohint_metrics'. (af_loader_load_glyph): s/internal/slot_internal/. Initialize `autohint_metrics' and `autohint_mode' depending on current auto-hint mode. Use `autohint_metrics'. Updated. * src/base/ftadvanc.c (LOAD_ADVANCE_FAST_CHECK): Updated. * src/base/ftobjs.c (FT_Load_Glyph): Updated. (FT_New_Size): Allocate `internal' object. * src/pshinter/pshalgo.c (ps_hints_apply): Updated. * src/smooth/ftsmooth.c (ft_smooth_render): Updated.
eb5e0fb7	2017-04-21T22:53:39	* src/smooth/ftsmooth.h: Remove unused guards and declaration.
71d289da	2017-04-19T23:50:29	Typos.
9931175d	2017-03-18T07:06:49	Improve `make multi'. * src/autofit/aflatin2.c: Guard file with FT_OPTION_AUTOFIT2. * src/base/ftmac.c: Guard more parts of the file with FT_MACINTOSH. * src/psaux/afmparse.c: Guard file with T1_CONFIG_OPTION_NO_AFM. * src/sfnt/pngshim.c: Guard file with TT_CONFIG_OPTION_EMBEDDED_BITMAPS also. * src/sfnt/ttbdf.c: Avoid empty source file. * src/sfnt/ttpost.c: Guard file with TT_CONFIG_OPTION_POSTSCRIPT_NAMES. * src/sfnt/ttsbit.c: Guard file with TT_CONFIG_OPTION_EMBEDDED_BITMAPS. * src/truetype/ttgxvar.c, src/truetype/ttinterp.c: Avoid empty source file. * src/truetype/ttsubpix.c: Guard file with TT_USE_BYTECODE_INTERPRETER also. * src/type1/t1afm.c: Guard file with T1_CONFIG_OPTION_NO_AFM. * src/autofit/autofit.c, src/base/ftbase.c, src/cache/ftcache.c, src/cff/cff.c, src/cid/type1cid.c, src/gxvalid/gxvalid.c, src/pcf/pcf.c, src/pfr/pfr.c, src/psaux/psaux.c, src/pshinter/pshinter.c, src/psnames/psnames.c, src/raster/raster.c, src/sfnt/sfnt.c, src/smooth/smooth.c, src/truetype/truetype.c, src/type1/type1.c, src/type42/type42.c: Remove conditionals; sort entries.
761d9e41	2017-02-22T22:41:36	* src/smooth/ftgrays.c (gray_hline): Improve code.
2e951988	2017-02-16T20:45:45	Add face property for LCD filter weights. * include/freetype/ftlcdfil.h (FT_PARAM_TAG_LCD_FILTER_WEIGHTS, FT_LCD_FILTER_FIVE_TAPS): New macros. (FT_LcdFiveTapFilter): New typedef. * include/freetype/ftobjs.h (FT_Face_InternalRec) [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Add `lcd_weights' field. (FT_Bitmap_LcdFilterFunc): Change third argument to weights array. (ft_lcd_filter_fir): New prototype. (FT_LibraryRec): Updated. * src/base/ftlcdfil.c (_ft_lcd_filter_fir): Renamed to... (ft_lcd_filter_dir): ... this base function. Updated. (_ft_lcd_filter_legacy): Updated. (FT_Library_SetLcdFilterWeights, FT_Library_SetLcdFilter): Updated. * src/base/ftobjs.c (ft_open_face_internal): Updated. (FT_Face_Properties): Handle FT_PARAM_TAG_LCD_FILTER_WEIGHTS. * src/smooth/ftsmooth.c (ft_smooth_render_generic) [FT_CONFIG_OPTION_SUBPIXEL_RENDERING: Handle LCD weights from `FT_Face_Internal'.
fcd47b3d	2017-02-12T23:07:29	* src/smooth/ftgrays.c (gray_sweep): Improve code.
a3754d66	2017-02-01T22:36:16	Comment.
2ca5b07d	2017-01-31T23:13:50	* src/smooth/ftgrays.c (gray_render_scanline): Improve code.
563ae780	2017-01-04T20:16:34	Update copyright year.
24be60b5	2017-01-01T08:20:38	/: Use hex numbers for errors in tracing messages.
4441f7b2	2016-12-26T17:08:17	Replace `foo == NULL' and `foo != NULL' with `!foo' and `foo', resp. Other minor formatting.
37c72f66	2016-12-25T22:55:25	Minor formatting.
1d28f697	2016-11-29T18:45:22	[smooth] Revert previous commit. Already fixed with 6ca54c64.
d949a3db	2016-11-29T12:09:56	[smooth] Avoid conditional jump on uninitialized value (#49711). * src/smooth/ftgrays.c (gray_raster_render): Initialize `worker'.
b0aacff4	2016-10-01T12:55:33	[smooth] Remove impossibility. * src/smooth/ftgrays.c (TWorker): Rearrange fields. (gray_convert_glyph): Remove impossible condition and clean up.
45cad2e5	2016-09-28T19:10:52	More FT_ZERO usage. * src/gxvalid/gxvcommn.c (gxv_ClassTable_validate): s/ft_memset/FT_MEM_ZERO/. * src/psaux/t1decode.c (t1_decoder_parse_charstrings): s/ft_memset/FT_ARRAY_ZERO/. * src/raster/ftraster.c (FT_ZERO): Define. (ft_black_new): Use it. * src/raster/ftrend1.c (ft_raster1_get_cbox): s/FT_MEM_ZERO/FT_ZERO/. * src/smooth/ftgrays.c (FT_ZERO): Define. (gray_raster_new): Use it. * src/smooth/ftsmooth.c (ft_smooth_get_cbox): s/FT_MEM_ZERO/FT_ZERO/.
53ae7a54	2016-09-22T22:48:15	[smooth] Reduce divisions in the line renderer. We don't need some divisions if a line segments stays within a single row or a single column of pixels. * src/smooth/ftgrays.c (gray_render_line) [FT_LONG64]: Make divisions conditional.
c95b7652	2016-09-17T17:12:50	s/0/NULL/ for function pointers; comments, formatting.
d5f7533e	2016-09-15T00:13:36	* src/smooth/ftgrays.c (gray_sweep): Remove check for empty table.
ad47550b	2016-09-14T23:15:03	[smooth] Another tiny speed-up. * src/smooth/ftgrays.c (gray_find_cell): Merge into... (gray_record_cell): ... this function.
c38be52b	2016-09-11T22:44:44	* src/smooth/ftgrays.c (gray_{find,set}_cell): Remove dubious code.
6ca54c64	2016-09-11T16:00:52	[smooth] Fix valgrind warning and reoptimize. The algorithm calls `gray_set_cell' at the start of each new contour or when the contours cross the cell boundaries. Double-checking for that is wasteful. * src/smooth/ftgrays.c (gray_set_cell): Remove check for a new cell. (gray_convert_glyph): Remove initialization introduced by 44b172e88.
a0b92bcb	2016-09-07T23:19:57	* src/smooth/ftgrays.c (gray_hline): Microptimize.
9d0a3bd8	2016-09-06T23:59:33	[smooth] Operate in absolute bitmap coordinates. Simpler bitmap addressing improves performance by 1.5%. * src/smooth/ftgrays.c (gray_TWorker): Remove count fields. (gray_dump_cells, gray_find_cell, gray_set_cell, gray_hline, gray_sweep, gray_convert_glyph, gray_raster_render): Updated.
44b172e8	2016-09-06T23:24:17	[smooth] Improve contour start (take 2). * src/smooth/ftgrays.c (gray_move_to): Call `gray_set_cell' directly instead of... (gray_start_cell): ... this function, which is removed. (gray_convert_glyph): Make initial y-coordinate invalid.
9773d5f7	2016-09-05T23:33:35	* src/smooth/ftgrays.c (gray_move_to, gray_start_cell): Revert.
7effc279	2016-09-05T21:58:56	[smooth] Improve contour start. * src/smooth/ftgrays.c (gray_move_to): Call `gray_set_cell' directly instead of... (gray_start_cell): ... this function, which is removed.
16583ccd	2016-09-02T22:45:14	* src/smooth/ftgrays.c (gray_hline): Fix clang compiler warnings.
11d3336a	2016-09-01T22:56:24	[smooth] Simplify span rendering more. It turns out that there is significant cost associated with `FT_Span' creation and calls to `gray_render_span' because it happerns so frequently. This removes these steps from our internal use but leaves it alone for `FT_RASTER_FLAG_DIRECT" to preserve API. The speed gain is about 5%. * src/smooth/ftgrays.c (gray_render_span): Removed. The code is migrated to... (gray_hline): ... here.
f44ddfda	2016-08-30T23:21:23	[smooth] Streamline pixmap drawing a bit more. Zero coverage is unlikely (1 out of 256) to warrant checking. This gives 0.5% speed improvement in dendering simple glyphs. * src/smooth/ftgrays.c (gray_hline, gray_render_span): Remove checks.
e73055c7	2016-08-29T23:15:35	[smooth] Streamline pixmap drawing. This gives 2% speed improvement in rendering simple glyphs. * src/smooth/ftgrays.c (TPixmap): Reduced pixmap descriptor with a pointer to its bottom-left and pitch to be used in... (gray_TWorker): ... here. (gray_render_span): Move pixmap flow check from here... (gray_raster_render): .. to here.
4d3f7ca8	2016-08-27T23:25:54	[smooth] Reduce stack of band boundaries. * src/smooth/ftgrays.c (gray_TBand): Removed. (gray_convert_glyph): Updated to stack band boundaries concisely.
9a444f05	2016-08-25T22:36:01	* src/smooth/ftgrays.c (gray_raster_render): Minor tweaks.
cb438878	2016-08-22T23:06:45	[smooth] Simplify span rendering. This removes unnecessary complexity of span merging and buffering. Instead, the spans are rendered as they come, speeding up the rendering by about 5% percents as a result. * src/smooth/ftgrays.c [FT_MAX_GRAY_SPANS]: Macro removed. (gray_TWorker): Remove span buffer and related fields. (gray_sweep, gray_hline): Updated. * include/freetype/ftimage.h: Remove documentation note about `FT_MAX_GRAY_SPANS', which was never in `ftoption.h' and is now gone.
3b37bfc4	2016-08-10T22:38:08	* src/smooth/ftgrays.c (gray_hline): Fix uninitialized access.
97718f3c	2016-08-05T23:36:16	[smooth] Minor refactoring. * src/smooth/ftgrays.c (gray_render_scanline, gray_render_line): Updated.
971f10b6	2016-07-08T06:59:31	Formatting.
109d1662	2016-07-08T06:58:46	Revert "Formatting." This reverts commit a0f3a1f25a69a7c5268e87ee6e7a9238c26e6242.
a0f3a1f2	2016-07-08T06:53:46	Formatting.
4a2f8f1f	2016-07-08T00:16:07	[smooth] Sub-banding protocol revision. Rasterization sub-banding is utilized at large sizes while using rather small fixed memory pool. Indeed it is possible to make an educated guess how much memory is necessary at a given size for a given glyph. It turns out that, for large majority of European glyphs, you should store about 8 times more boundary pixels than their height. Or, vice versa, if your memory pool can hold 800 pixels the band height should be 100 and you should sub-band anything larger than that. Should you still run out of memory, FreeType bisects the band but you have wasted some time. This is what has been implemented in FreeType since the beginning. It was overlooked, however, that the top band could grow to twice the default band size leading to unnecessary memory overflows there. This commit fixes that. Now the bands are distributed more evenly and cannot exceed the default size. Now the magic number 8 is really suitable for rather simple European scripts. For complex Chinese logograms the magic number should be 13 but that is subject for another day. * src/smooth/ftgrays.c (gray_convert_glyph): Revise sub-banding protocol.
d1876e58	2016-07-04T23:46:53	[smooth] Variable type revision (part 2). * src/smooth/ftgrays.c (TArea): Restore original definition as `int'. (gray_render_line) [FT_LONG64]: Updated. (gray_convert_glyph): 32-bit band bisection stack should be 32 bands. (gray_convert_glyph_inner): Trace successes and failures.
597c6959	2016-07-01T23:27:41	[smooth] Variable type revision (part 1). This patch restores original `TCoord' definition as `int' so that the rendering pool is used more efficiently on LP64 platforms (unix). * src/smooth/ftgrays.c (gray_TWorker, TCell, gray_TBand): Switch some fields to `TCoord'. (gray_find_cell, gray_render_scanline, gray_render_line, gray_hline, gray_sweep, gray_convert_glyph): Updated.
ef0a3e7e	2016-06-28T22:56:22	[smooth] Minor clean-ups. * src/smooth/ftgrays.c (gray_TWorker): Remove redundant `ycount'. (gray_sweep, gray_convert_glyph, gray_dump_cells): Updated.
c9cf359f	2016-06-28T00:30:58	[smooth] Minor clean-ups. * src/smooth/ftgrays.c (gray_convert_glyph): Do not use volatile qualifier. (gray_raster_render): Move span initializations from here. (gray_sweep): ... to here and remove unused `target' argument.
25e82bc2	2016-06-23T23:17:39	[smooth] Consolidate memory management. * src/smooth/ftgrays.c (gray_init_cells): Remove function. (gray_TWorker): Remove fields that become local variables. (gray_raster_render): Move rendering buffer declaration from here. (gray_convert_glyph): ... to here and update accordingly.
e2233481	2016-06-22T23:14:26	[smooth] Consolidate boundary checks. Removing the checks from `gray_hline' shaves 1% off rendering speed. * src/smooth/ftgrays.c [STANDALONE_]: Duplicate `FT_MIN' and `FT_MAX'. (gray_TWorker): No need to store `clip_box'. (gray_hline): Remove unnecessary boundary checks. (gray_convert_glyph): Move boundary checks from here. (gray_raster_render): ... to here and consolidate.
78e8fc0d	2016-06-22T00:04:08	[smooth] Use `FT_Outline_Get_CBox'. * src/smooth/ftgrays.c [STANDALONE_]: Duplicate `FT_Outline_Get_CBox'. (gray_compute_cbox): Remove this function. (gray_convert_glyph): Update to use `FT_Outline_Get_CBox'.
20c6ef4c	2016-06-21T11:39:34	[smooth] Remove compiler warnings. * src/smooth/ftgrays.c (gray_convert_glyph): Fix reports from clang.
3c64af98	2016-06-20T00:01:55	[smooth] Sanitize memory managenent. * src/smooth/ftgrays.c (gray_convert_glyph): Cleaned up.
74fd251b	2016-06-18T22:31:26	[smooth] Remove `band_shoot' that never worked. * src/smooth/ftgrays.c (gray_TWorker): Remove `band_shoot'. (gray_convert_glyph): Updated.
3e1f7bc5	2016-06-18T22:13:23	Fresh typos.
72a06531	2016-06-17T23:10:22	[raster, smooth] Handle FT_RENDER_POOL_SIZE better. * src/raster/ftraster.c (FT_MAX_BLACK_POOL): New macro. (ft_black_render): Updated. * src/smooth/ftgrays.c (FT_MAX_GRAY_POOL): New macro. (gray_raster_render): Updated.
7f569f45	2016-06-14T23:49:31	Move function.
32acceff	2016-06-14T23:38:17	* src/smooth/ftgrays.c (gray_hline): Optimize if-condition.
77180c7a	2016-06-08T23:31:28	[smooth] Re-enable new line renderer on 64-bit archs. * src/smooth/ftgrays (gray_render_line): Conditionally re-enable new implementation, where it is safe from overflows.
9cf232ed	2016-06-08T23:19:41	[smooth] Minor clean-ups. * src/smooth/ftgrays.c (gray_dump_cells): Move out of the way. (gray_render_span): Remove spurious casts and streamline.
e9f95093	2016-05-26T23:46:38	[smooth] Shrink bisection stack. The convergence of Bézier flatteners is fast with the deviation from straight line being assymptotically cut 4-fold on each bisection. This justifies smaller bisection stack size. * src/smooth/ftgrays.c (gray_TWorker): Remove common `bez_stack'. (gray_render_conic): Create and use conic `bez_stack'. Move back the band analysis from... (gray_conic_to): ... here. (gray_render_cubic): Create and use cubic `bez_stack'. Move back the band analysis from... (gray_cubic_to): ... here. (gray_move_to): Updated.
6e88087d	2016-05-05T23:41:03	[smooth] More efficient accounting of conic splits and draws. A single decrement counter of segments to draw, instead of an array, contains all the information necessary to decide when to split and when to draw a conic segment. The number of splits before each draw is equal to the number of trailing zeros in the counter. * src/smooth/ftgrays.c (gray_TWorker): Remove `lev_stack'. (gray_render_conic): Updated to use decrement counter of segments.
98967b77	2016-03-23T23:07:24	Add comment.
31f2dc19	2016-03-23T07:31:59	[raster, smooth] Directly test outline size (#47500). This improves stand-alone compilation. * src/base/ftoutln.c (FT_Outline_Render): Move cbox size test to... * src/raster/ftraster.c (ft_black_render), src/smooth/ftgrays.c (gray_raster_render): ...these functions.
e9181aba	2016-03-23T06:58:20	[raster, smooth] Fix some clang sanitizer runtime issues. * src/raster/ftraster.c (ft_black_reset, ft_black_set_mode, ft_black_render): Harmonize signatures with `ftimage.h'. * src/smooth/ftgrays.c (gray_raster_render, gray_raster_reset): Ditto.
3beccbdf	2016-03-21T00:07:47	[smooth] Partly revert recent changes. * src/smooth/ftgrays.c (gray_conic_to, gray_cubic_to): Rework conditions to fix rendering issues.
8e8bb126	2016-03-18T23:21:59	[smooth] Minor refactoring and microoptimizations. * src/smooth/ftgrays.c (gray_render_conic, gray_render_cubic): Move band clipping from here. (gray_conic_to, gray_cubic_to): ... to here. (gray_rander_line, gray_render_scanline): Initialize variables closer to their use.
84b2c633	2016-03-17T00:53:09	[smooth] Minor refactoring. * src/smooth/ftgrays.c (gray_render_conic, gray_render_cubic): Move upscaling from here... (gray_conic_to, gray_cubic_to):... to here.
1865575a	2016-03-14T22:39:22	[smooth] Temporarily revert 6eb6158dd787 (#47114). * src/smooth/ftgrays.c (gray_render_line): Old implementation.
d0b0e31e	2016-03-06T23:01:50	[smooth] Replace left shifts with multiplications (#47114). * src/smooth/ftgrays.c (SUBPIXELS, UPSCALE, DOWNSCALE): Do it.
015c6e08	2016-03-01T06:45:52	Fix clang warnings. * src/autofit/aflatin.c (af_latin_hints_compute_segments): Use FT_UShort for `min_flags' and `max_flags'. Initialize `prev_' variables. src/cff/cffobjs.c (cff_face_init) [FT_DEBUG_LEVEL_TRACE]: Fix types of local variables. * src/smooth/ftgrays.c (gray_dump_cells) [FT_DEBUG_LEVEL_TRACE]: Update `printf' format string. * src/tools/ftfuzzer/ftfuzzer.cc (setIntermediateAxis): Add cast. (LLVMFuzzerTestOneInput): Fix loop type.
08e89b73	2016-02-16T22:32:13	[smooth] Fix integer overflow (#47114). * src/smooth/ftgrays.c (TArea): Make it unconditionally `long'.
9adeab64	2016-01-13T11:54:10	Update copyright year.
9d0b76d7	2016-01-12T22:27:29	Don't use macro names that start with `_[A-Z]' [2/3]. Such macro names are reserved for both C and C++. * include/freetype/ftimage.h, src/raster/ftraster.c, src/smooth/ftgrays.c, src/smooth/ftgrays.h: s/_STANDALONE_/STANDALONE_/.
37412ff9	2016-01-12T21:37:13	Don't use macro names that contain `__' [1/2]. Such macro names are reserved for both C and C++. /: Replace macros of the form `__XXX_H__' with `XXX_H_'.
6eb6158d	2015-10-06T22:39:54	[smooth] Faster alternative line renderer. This implementation renders the entire line segment at once without subdividing it into scanlines. The main speed improvement comes from reducing the number of divisions to just two per line segment, which is a bare minimum to calculate cell coverage in a smooth rasterizer. Notably, the progression from cell to cell does not itself require any divisions at all. The speed improvement is more noticeable at larger sizes. * src/smooth/ftgrays.c (gray_render_line): New implementation.
e2dae8fe	2015-10-01T22:03:34	[smooth] Clean up worker. * src/smooth/ftgrays.c (gray_TWorker): Remove never used fields.
8bbcfb2c	2015-09-30T23:08:53	[smooth] Clean up worker. * src/smooth/ftgrays.c (gray_TWorker): Remove lightly used `last_ey'. (gray_start_cell, gray_render_line): Update.
d8a44ff9	2015-09-26T22:33:55	Remove unused macro.
b002f688	2015-09-07T13:47:36	* src/smooth/ftgrays.c (gray_render_line): Simplify clipping.
5a6dc872	2015-09-04T23:14:46	[raster,smooth] Microoptimizations. * src/raster/ftraster.c (Insert_Y_Turn, Finalize_Profile_Table, Beziier_Up, ): Use do-while loops. * src/smooth/ftgrays.c (gray_render_scanline, gray_render_line, gray_convert_glyph): Ditto.
f9be567f	2015-07-09T15:10:31	Better support of user-supplied C++ namespaces. See http://lists.nongnu.org/archive/html/freetype-devel/2015-07/msg00008.html for a rationale. * src/autofit/afpic.h, src/base/basepic.h, src/cff/cffpic.h, src/pshinter/pshpic.h, src/psnames/pspic.h, src/raster/rastpic.h, src/sfnt/sfntpic.h, src/smooth/ftspic.h, src/truetype/ttpic.h (FT_BEGIN_HEADER, FT_END_HEADER): Move macro calls to not enclose header files that contain FT_{BEGIN,END}_HEADER macros by themselves. * src/autofit/aftypes.h [FT_DEBUG_AUTOFIT]: Include FT_CONFIG_STANDARD_LIBRARY_H earlier. * src/truetype/ttpic.h: Include FT_INTERNL_PIC_H.
392cf22f	2015-06-25T13:04:57	Another adjustment to header locations. This change is a result of a discussion thread on freetype-devel http://lists.nongnu.org/archive/html/freetype-devel/2015-06/msg00041.html Re-introduce the `freetype2' subdirectory for all FreeType header files after installation, and rename the `freetype2' subdirectory in the git repository to `freetype'. * include/freetype2: Renamed to... * include/freetype: This. * CMakeLists.txt (PUBLIC_HEADERS, PUBLIC_CONFIG_HEADERS, PRIVATE_HEADERS): Updated. Update creation of `ftconfig.h'. Install generated `ftconfig.h'. * Jamfile (HDRMACRO, RefDoc), autogen.sh: Updated. * builds/amiga/include/config/ftconfig.h, builds/freetype.mk (PUBLIC_DIR), builds/symbian/bld.inf, builds/toplevel.mk (work), builds/unix/freetype2.in: Updated. * builds/unix/freetype-config.in: Updated. * builds/unix/configure.raw: Don't check for `rmdir'. * builds/unix/unix-def.in (DELDIR): Use `rm -rf', which is portable according to the autoconf info manual. * builds/unix/install.mk (install, uninstall, distclean_project_unix): Update and simplify. * builds/wince/, builds/windows/: Updated. * devel/ft2build.h, include/ft2build.h: Updated. * include/freetype2/config/ftheader.h, include/freetype2/internal/ftserv.h, include/freetype2/internal/internal.h: Update all header file macros. * src/tools/chktrcmp.py (TRACE_DEF_FILES): Updated. * docs/*: Updated.
8502c98b	2015-06-22T06:35:23	Fix Savannah bug #45097. We no longer `pollute' the namespace of possible header file names; instead we move `ft2build.h' up by one level so that it gets installed in the default include directory (e.g., /usr/local/include). After this commit, only `ft2build.h' stays in the compiler's include path. No visible changes for the user who follows the standard FreeType header inclusion rules. * include/: Move to ... include/freetype2/: This directory, except `ft2build.h'. CMakeLists.txt (PUBLIC_HEADERS, PUBLIC_CONFIG_HEADERS, PRIVATE_HEADERS), Jamfile (HDRMACRO, RefDoc), autogen.sh: Updated. * builds/amiga/include/config/ftconfig.h, builds/freetype.mk (PUBLIC_DIR), builds/symbian/bld.inf, builds/toplevel.mk (work), builds/unix/install.mk (install, uninstall), builds/unix/freetype2.in: Updated. * builds/unix/freetype-config.in: Updated. Emit -I directory only if it is not `/usr/include'. * builds/wince/, builds/windows/: Updated. * devel/ft2build.h, include/ft2build.h: Updated. * include/freetype2/config/ftheader.h, include/freetype2/internal/ftserv.h, include/freetype2/internal/internal.h: Update all header file macros. * src/tools/chktrcmp.py (TRACE_DEF_FILES): Updated. * docs/*: Updated.
31d97df9	2015-06-21T19:12:12	Make Jam support work again. This is just very basic stuff and just a little bit tested on GNU/Linux only. I won't delve into this since I'm not a Jam user. * Jamfile: Call `HDRMACRO' for `ftserv.h' also. (DEFINES): Replace with... (CCFLAGS): ... this. * src/Jamfile: Don't call `HDRMACRO' for `internal.h'; this is already handled in the top-level Jamfile. * src/autofit/Jamfile (DEFINES): Replace with... (CCFLAGS): ... this. (_sources): Add missing files. * src/cache/Jamfile: Don't call `HDRMACRO' for `ftcache.h'; it no longer contains macro header definitions. * src/base/Jamfile, src/cff/Jamfile, src/sfnt/Jamfile, src/truetype/Jamfile (_sources): Add missing files.
4d1f7af1	2015-02-23T07:04:36	[smooth, raster] Re-enable standalone compilation. * src/raster/ftraster.c (FT_RENDER_POOL_SIZE, FT_MAX) [_STANDALONE_]: Define macros. * src/smooth/ftgrays.c (FT_RENDER_POOL_SIZE, FT_MAX, FT_ABS, FT_HYPOT) [_STANDALONE_]: Define macros.
cb13e710	2015-02-23T06:41:52	[smooth] Signedness fixes. * src/smooth/ftgrays.c, src/smooth/ftsmooth.c: Apply.
f57fc59e	2015-01-17T20:41:43	Run `src/tools/update-copyright'.
b2ba6866	2015-01-14T18:43:13	[smooth] Fix uninitialized memory access. Looks like `ras.span_y' could always be used without initialization. This was never detected by valgrind before because the library-wide `raster_pool' was used for the worker object and `raster_pool' was originally zero'ed. But subsequent reuses of it were using `span_y' uninitialized. With the recent change to not use `render_pool' and allocate worker and buffer on the stack, valgrind now detects this uninitialized access. * src/smooth/ftgrays.c (gray_raster_render): Initialize `ras.span_y'.
747ae2c8	2015-01-14T17:54:26	[smooth] Allocate render pool for smooth rasterizer on the stack. Instead of using the `render_pool' member of `FT_Library' that is provided down to the rasterizer, completely ignore that and allocate needed objects on the stack instead. With this patch, rasterizing glyphs from different faces from different threads doesn't crash in the smooth rasterizer. Bugs: https://bugzilla.redhat.com/show_bug.cgi?id=678397 https://bugzilla.redhat.com/show_bug.cgi?id=1004315 https://bugzilla.redhat.com/show_bug.cgi?id=1165471 https://bugs.freedesktop.org/show_bug.cgi?id=69034 * src/smooth/ftgrays.c (gray_TRaster): Remove `buffer', `buffer_size', `band_size', and `worker' members. (gray_raster_render): Create `buffer', `buffer_size', and `band_size' locally. (gray_raster_reset): Updated.

c8d8e158

2017-09-30T14:28:58

Signedness fixes in bitmap presetting. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3514. * src/raster/ftrend1.c (ft_raster1_render): Exlicitly signed height. * src/smooth/ftsmooth.c (ft_smooth_render_generic): Ditto. * src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Explicitly unsigned subtraction.

ae7dc1f6

2017-09-28T22:59:31

[smooth, raster] Miscellaneous cleanups. * src/raster/ftrend1.c (ft_raster1_render): Clean up the exit. * src/smooth/ftsmooth.c (ft_smooth_render_generic): Reduce translations and clean up the exit. (ft_smooth_render_lcd, ft_smooth_render_lcd): Remove unused `error'..

61d1818b

2017-09-28T00:20:50

Bitmap metrics presetting [1/2]. This mainly just extracts the code for presetting the bitmap metrics from the monochrome, grayscale, and LCD renderers into a separate function. * src/base/ftobjs.c (ft_glyphslot_preset_bitmap): New function that calculates prespective bitmap metrics for the given rendering mode. * include/freetype/internal/ftobjs.h (ft_glyphslot_preset_bitmap): Declare it. * src/base/ftlcdfil.c (ft_lcd_padding): New helper function that adds padding to CBox taking into account pecularities of LCD rendering. * include/freetype/ftlcdfil.h (ft_lcd_padding): Declare it. * src/raster/ftrend1.c (ft_raster1_render): Reworked to use `ft_glyphslot_preset_bitmap'. * src/smooth/ftsmooth.c (ft_smooth_render_generic): Ditto. (ft_smooth_render_lcd, ft_smooth_render_lcd): The pixel_mode setting is moved to `ft_glyphslot_preset_bitmap'.

02e80da6

2017-09-24T22:18:34

Tweak per-face LCD filtering controls. Thing are simpler with a NULL-function pointer. * include/freetype/internal/ftobjs.h (FT_Face_InternalRec): New pointer to the filter function. (FT_LibraryRec): Remove unused `lcd_filter'. (FT_Bitmap_LcdFilterFunc, ft_lcd_filter_fir): Move from here... * include/freetype/ftlcdfil.h (FT_Bitmap_LcdFilterFunc, ft_lcd_filter_fir): ... to here. * src/base/ftobjs.c (ft_open_face_internal): NULL-initialize the per-face filter. (FT_Face_Properties): Set it. * src/smooth/ftsmooth.c (ft_smooth_render_generic): Simplify. * src/base/ftlcdfil.c (ft_lcd_filter_fir, FT_Libary_SetLcdFilter): Minor.

39ce3ac4

2017-09-16T19:08:17

* Version 2.8.1 released. ========================= Tag sources with `VER-2-8-1'. * docs/VERSION.TXT: Add entry for version 2.8.1. * docs/CHANGES: Updated. * README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj, builds/windows/vc2005/index.html, builds/windows/vc2008/freetype.vcproj, builds/windows/vc2008/index.html, builds/windows/vc2010/freetype.vcxproj, builds/windows/vc2010/index.html, builds/windows/visualc/freetype.dsp, builds/windows/visualc/freetype.vcproj, builds/windows/visualc/index.html, builds/windows/visualce/freetype.dsp, builds/windows/visualce/freetype.vcproj, builds/windows/visualce/index.html, builds/wince/vc2005-ce/freetype.vcproj, builds/wince/vc2005-ce/index.html, builds/wince/vc2008-ce/freetype.vcproj, builds/wince/vc2008-ce/index.html: s/2.8/2.8.1/, s/28/281/. * include/freetype/freetype.h (FREETYPE_PATCH): Set to 1. * builds/unix/configure.raw (version_info): Set to 21:0:15. * CMakeLists.txt (VERSION_PATCH): Set to 1.

410f3799

2017-03-09T00:08:38

[smooth] Harmony LCD rendering. This is a new technology for LCD-optimized rendering. It capitalizes on the fact that each color channel grid is shifted by a third of a pixel. Therefore it is logical to render 3 separate monochrome bitmaps shifting the outline by 1/3 pixel, and then combine them. Importantly, the resulting output does not require additional LCD filtering. * src/smooth/ftsmooth.c (ft_smooth_render_generic) [!FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Implement new LCD-optimized rendering. * include/freetype/ftlcdfil.h, include/freetype/freetype.h, include/freetype/config/ftoption.h, devel/ftoption.h: Updated documentation.

5710ef98

2017-08-08T22:00:35

* src/smooth/ftsmooth.c (ft_smooth_render_generic): Clean up.

7b727833

2017-06-17T23:28:14

[base, smooth] LCD filtering cleanups. * src/base/ftlcdlil.c (ft_lcd_filter_fir, _ft_lcd_filter_legacy): Clean up, start filtering from the bottom-left origin. * src/smooth/ftsmooth.c (ft_smooth_render_generic): Updated.

dcd8de27

2017-06-09T11:21:58

*/*: Remove `OVERFLOW_' prefix. This increases readability.

cd02d359

2017-06-01T17:05:39

[smooth] Some 32bit integer overflow run-time errors. * src/smooth/ftgrays.c [STANDALONE] (OVERFLOW_ADD_LONG, OVERFLOW_SUB_LONG, OVERFLOW_MUL_LONG, NEG_LONG): New macros. [!STANDALONE]: Include FT_INTERNAL_CALC_H. (gray_render_cubic): Use those macros where appropriate.

ab2599ea

2017-05-20T00:35:21

[smooth] Implement minimal dynamic padding for LCD filtering. Extra bitmap padding for LCD filtering depends on the filter. The default 5-tap filter needs 2 extra subpixels. The light 3-tap filter needs only 1 extra subpixel. This space could be already available due to rounding. In order to optimize the padding, we now expand CBox for the given filter weights before rounding. This change breakes current Skia (and Firefox). * include/freetype/internal/ftobjs.h (FT_LibraryRec) [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Remove `lcd_extra' field. * src/base/ftlcdfil.c (FT_Library_SetLcdFilterWeights, FT_Library_SetLcdFilter): Remove `lcd_extra' initializations. * src/smooth/ftsmooth.c (ft_smooth_render_generic): Implement dymanic LCD padding.

e99b26aa

2017-05-14T21:57:27

Remove remnants of raster pool. * include/freetype/internal/ftobjs.h (FT_LibraryRec): Remove `raster_pool' and `raster_pool_size' fields. * src/base/ftobjs.c (FT_New_Library), src/raster/ftrend1.c (ft_raster1_init), src/smooth/ftsmooth.c (ft_smooth_init): Updated.

ba40054c

2017-05-02T12:32:19

[autofit] Remove `slight' auto-hint mode again. A poll on freetype-devel favoured changes directly applied to `light'. * include/freetype/freetype.h (FT_LOAD_TARGET_SLIGHT, FT_RENDER_MODE_SLIGHT): Removed. * src/autofit/afcjk.c (af_cjk_hints_init), src/autofit/aflatin.c (af_latin_hints_init), src/autofit/aflatin2.c (af_latin2_hints_init): Revert change from 2017-04-22. * src/autofit/afloader.c (af_loader_load_glyph) Remove references to FT_RENDER_MODE_SLIGHT. [AF_CONFIG_OPTION_TT_SIZE_METRICS]: Enable TrueType-like metrics unconditionally. * src/base/ftadvanc.c (LOAD_ADVANCE_FAST_CHECK): Revert change from 2017-04-22. * src/base/ftobjs.c (FT_Load_Glyph): Revert change from 2017-04-22. * src/pshinter/pshalgo.c (ps_hints_apply): Revert change from 2017-04-22. * src/smooth/ftsmooth.c (ft_smooth_render): Revert change from 2017-04-22. * docs/CHANGES: Updated.

5aa6716a

2017-04-22T13:27:21

Add new `slight' auto-hinting mode. This mode uses fractional advance widths and doesn't scale glyphs horizontally, only applying vertical scaling and hinting. At the same time, the behaviour of the `light' auto-hinter gets restored for backwards compatibility: Both vertical and horizontal scaling is again based on rounded metrics values (this was changed in a commit from 2017-03-30 as a side effect). To be more precise, the behaviour is restored for TrueType fonts only; for other font formats like Type 1, this is a new feature of the `light' hinting mode. * include/freetype/freetype.h (FT_LOAD_TARGET_SLIGHT): New macro. (FT_RENDER_MODE_SLIGHT): New render mode. * include/freetype/internal/ftobjs.h (FT_Size_InternalRec): Add `autohint_mode' and `autohint_metrics' fields. * src/autofit/afcjk.c (af_cjk_hints_init), src/autofit/aflatin.c (af_latin_hints_init), src/autofit/aflatin2 (af_latin2_hints_init): Updated. * src/autofit/afloader.c (af_loader_embolden_glyph_in_slot): Use `autohint_metrics'. (af_loader_load_glyph): s/internal/slot_internal/. Initialize `autohint_metrics' and `autohint_mode' depending on current auto-hint mode. Use `autohint_metrics'. Updated. * src/base/ftadvanc.c (LOAD_ADVANCE_FAST_CHECK): Updated. * src/base/ftobjs.c (FT_Load_Glyph): Updated. (FT_New_Size): Allocate `internal' object. * src/pshinter/pshalgo.c (ps_hints_apply): Updated. * src/smooth/ftsmooth.c (ft_smooth_render): Updated.

eb5e0fb7

2017-04-21T22:53:39

* src/smooth/ftsmooth.h: Remove unused guards and declaration.

71d289da

2017-04-19T23:50:29

Typos.

9931175d

2017-03-18T07:06:49

Improve `make multi'. * src/autofit/aflatin2.c: Guard file with FT_OPTION_AUTOFIT2. * src/base/ftmac.c: Guard more parts of the file with FT_MACINTOSH. * src/psaux/afmparse.c: Guard file with T1_CONFIG_OPTION_NO_AFM. * src/sfnt/pngshim.c: Guard file with TT_CONFIG_OPTION_EMBEDDED_BITMAPS also. * src/sfnt/ttbdf.c: Avoid empty source file. * src/sfnt/ttpost.c: Guard file with TT_CONFIG_OPTION_POSTSCRIPT_NAMES. * src/sfnt/ttsbit.c: Guard file with TT_CONFIG_OPTION_EMBEDDED_BITMAPS. * src/truetype/ttgxvar.c, src/truetype/ttinterp.c: Avoid empty source file. * src/truetype/ttsubpix.c: Guard file with TT_USE_BYTECODE_INTERPRETER also. * src/type1/t1afm.c: Guard file with T1_CONFIG_OPTION_NO_AFM. * src/autofit/autofit.c, src/base/ftbase.c, src/cache/ftcache.c, src/cff/cff.c, src/cid/type1cid.c, src/gxvalid/gxvalid.c, src/pcf/pcf.c, src/pfr/pfr.c, src/psaux/psaux.c, src/pshinter/pshinter.c, src/psnames/psnames.c, src/raster/raster.c, src/sfnt/sfnt.c, src/smooth/smooth.c, src/truetype/truetype.c, src/type1/type1.c, src/type42/type42.c: Remove conditionals; sort entries.

761d9e41

2017-02-22T22:41:36

* src/smooth/ftgrays.c (gray_hline): Improve code.

2e951988

2017-02-16T20:45:45

Add face property for LCD filter weights. * include/freetype/ftlcdfil.h (FT_PARAM_TAG_LCD_FILTER_WEIGHTS, FT_LCD_FILTER_FIVE_TAPS): New macros. (FT_LcdFiveTapFilter): New typedef. * include/freetype/ftobjs.h (FT_Face_InternalRec) [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Add `lcd_weights' field. (FT_Bitmap_LcdFilterFunc): Change third argument to weights array. (ft_lcd_filter_fir): New prototype. (FT_LibraryRec): Updated. * src/base/ftlcdfil.c (_ft_lcd_filter_fir): Renamed to... (ft_lcd_filter_dir): ... this base function. Updated. (_ft_lcd_filter_legacy): Updated. (FT_Library_SetLcdFilterWeights, FT_Library_SetLcdFilter): Updated. * src/base/ftobjs.c (ft_open_face_internal): Updated. (FT_Face_Properties): Handle FT_PARAM_TAG_LCD_FILTER_WEIGHTS. * src/smooth/ftsmooth.c (ft_smooth_render_generic) [FT_CONFIG_OPTION_SUBPIXEL_RENDERING: Handle LCD weights from `FT_Face_Internal'.

fcd47b3d

2017-02-12T23:07:29

* src/smooth/ftgrays.c (gray_sweep): Improve code.

a3754d66

2017-02-01T22:36:16

Comment.

2ca5b07d

2017-01-31T23:13:50

* src/smooth/ftgrays.c (gray_render_scanline): Improve code.

563ae780

2017-01-04T20:16:34

Update copyright year.

24be60b5

2017-01-01T08:20:38

*/*: Use hex numbers for errors in tracing messages.

4441f7b2

2016-12-26T17:08:17

Replace `foo == NULL' and `foo != NULL' with `!foo' and `foo', resp. Other minor formatting.

37c72f66

2016-12-25T22:55:25

Minor formatting.

1d28f697

2016-11-29T18:45:22

[smooth] Revert previous commit. Already fixed with 6ca54c64.

d949a3db

2016-11-29T12:09:56

[smooth] Avoid conditional jump on uninitialized value (#49711). * src/smooth/ftgrays.c (gray_raster_render): Initialize `worker'.

b0aacff4

2016-10-01T12:55:33

[smooth] Remove impossibility. * src/smooth/ftgrays.c (TWorker): Rearrange fields. (gray_convert_glyph): Remove impossible condition and clean up.

45cad2e5

2016-09-28T19:10:52

More FT_ZERO usage. * src/gxvalid/gxvcommn.c (gxv_ClassTable_validate): s/ft_memset/FT_MEM_ZERO/. * src/psaux/t1decode.c (t1_decoder_parse_charstrings): s/ft_memset/FT_ARRAY_ZERO/. * src/raster/ftraster.c (FT_ZERO): Define. (ft_black_new): Use it. * src/raster/ftrend1.c (ft_raster1_get_cbox): s/FT_MEM_ZERO/FT_ZERO/. * src/smooth/ftgrays.c (FT_ZERO): Define. (gray_raster_new): Use it. * src/smooth/ftsmooth.c (ft_smooth_get_cbox): s/FT_MEM_ZERO/FT_ZERO/.

53ae7a54

2016-09-22T22:48:15

[smooth] Reduce divisions in the line renderer. We don't need some divisions if a line segments stays within a single row or a single column of pixels. * src/smooth/ftgrays.c (gray_render_line) [FT_LONG64]: Make divisions conditional.

c95b7652

2016-09-17T17:12:50

s/0/NULL/ for function pointers; comments, formatting.

d5f7533e

2016-09-15T00:13:36

* src/smooth/ftgrays.c (gray_sweep): Remove check for empty table.

ad47550b

2016-09-14T23:15:03

[smooth] Another tiny speed-up. * src/smooth/ftgrays.c (gray_find_cell): Merge into... (gray_record_cell): ... this function.

c38be52b

2016-09-11T22:44:44

* src/smooth/ftgrays.c (gray_{find,set}_cell): Remove dubious code.

6ca54c64

2016-09-11T16:00:52

[smooth] Fix valgrind warning and reoptimize. The algorithm calls `gray_set_cell' at the start of each new contour or when the contours cross the cell boundaries. Double-checking for that is wasteful. * src/smooth/ftgrays.c (gray_set_cell): Remove check for a new cell. (gray_convert_glyph): Remove initialization introduced by 44b172e88.

a0b92bcb

2016-09-07T23:19:57

* src/smooth/ftgrays.c (gray_hline): Microptimize.

9d0a3bd8

2016-09-06T23:59:33

[smooth] Operate in absolute bitmap coordinates. Simpler bitmap addressing improves performance by 1.5%. * src/smooth/ftgrays.c (gray_TWorker): Remove count fields. (gray_dump_cells, gray_find_cell, gray_set_cell, gray_hline, gray_sweep, gray_convert_glyph, gray_raster_render): Updated.

44b172e8

2016-09-06T23:24:17

[smooth] Improve contour start (take 2). * src/smooth/ftgrays.c (gray_move_to): Call `gray_set_cell' directly instead of... (gray_start_cell): ... this function, which is removed. (gray_convert_glyph): Make initial y-coordinate invalid.

9773d5f7

2016-09-05T23:33:35

* src/smooth/ftgrays.c (gray_move_to, gray_start_cell): Revert.

7effc279

2016-09-05T21:58:56

[smooth] Improve contour start. * src/smooth/ftgrays.c (gray_move_to): Call `gray_set_cell' directly instead of... (gray_start_cell): ... this function, which is removed.

16583ccd

2016-09-02T22:45:14

* src/smooth/ftgrays.c (gray_hline): Fix clang compiler warnings.

11d3336a

2016-09-01T22:56:24

[smooth] Simplify span rendering more. It turns out that there is significant cost associated with `FT_Span' creation and calls to `gray_render_span' because it happerns so frequently. This removes these steps from our internal use but leaves it alone for `FT_RASTER_FLAG_DIRECT" to preserve API. The speed gain is about 5%. * src/smooth/ftgrays.c (gray_render_span): Removed. The code is migrated to... (gray_hline): ... here.

f44ddfda

2016-08-30T23:21:23

[smooth] Streamline pixmap drawing a bit more. Zero coverage is unlikely (1 out of 256) to warrant checking. This gives 0.5% speed improvement in dendering simple glyphs. * src/smooth/ftgrays.c (gray_hline, gray_render_span): Remove checks.

e73055c7

2016-08-29T23:15:35

[smooth] Streamline pixmap drawing. This gives 2% speed improvement in rendering simple glyphs. * src/smooth/ftgrays.c (TPixmap): Reduced pixmap descriptor with a pointer to its bottom-left and pitch to be used in... (gray_TWorker): ... here. (gray_render_span): Move pixmap flow check from here... (gray_raster_render): .. to here.

4d3f7ca8

2016-08-27T23:25:54

[smooth] Reduce stack of band boundaries. * src/smooth/ftgrays.c (gray_TBand): Removed. (gray_convert_glyph): Updated to stack band boundaries concisely.

9a444f05

2016-08-25T22:36:01

* src/smooth/ftgrays.c (gray_raster_render): Minor tweaks.

cb438878

2016-08-22T23:06:45

[smooth] Simplify span rendering. This removes unnecessary complexity of span merging and buffering. Instead, the spans are rendered as they come, speeding up the rendering by about 5% percents as a result. * src/smooth/ftgrays.c [FT_MAX_GRAY_SPANS]: Macro removed. (gray_TWorker): Remove span buffer and related fields. (gray_sweep, gray_hline): Updated. * include/freetype/ftimage.h: Remove documentation note about `FT_MAX_GRAY_SPANS', which was never in `ftoption.h' and is now gone.

3b37bfc4

2016-08-10T22:38:08

* src/smooth/ftgrays.c (gray_hline): Fix uninitialized access.

97718f3c

2016-08-05T23:36:16

[smooth] Minor refactoring. * src/smooth/ftgrays.c (gray_render_scanline, gray_render_line): Updated.

971f10b6

2016-07-08T06:59:31

Formatting.

109d1662

2016-07-08T06:58:46

Revert "Formatting." This reverts commit a0f3a1f25a69a7c5268e87ee6e7a9238c26e6242.

a0f3a1f2

2016-07-08T06:53:46

Formatting.

4a2f8f1f

2016-07-08T00:16:07

[smooth] Sub-banding protocol revision. Rasterization sub-banding is utilized at large sizes while using rather small fixed memory pool. Indeed it is possible to make an educated guess how much memory is necessary at a given size for a given glyph. It turns out that, for large majority of European glyphs, you should store about 8 times more boundary pixels than their height. Or, vice versa, if your memory pool can hold 800 pixels the band height should be 100 and you should sub-band anything larger than that. Should you still run out of memory, FreeType bisects the band but you have wasted some time. This is what has been implemented in FreeType since the beginning. It was overlooked, however, that the top band could grow to twice the default band size leading to unnecessary memory overflows there. This commit fixes that. Now the bands are distributed more evenly and cannot exceed the default size. Now the magic number 8 is really suitable for rather simple European scripts. For complex Chinese logograms the magic number should be 13 but that is subject for another day. * src/smooth/ftgrays.c (gray_convert_glyph): Revise sub-banding protocol.

d1876e58

2016-07-04T23:46:53

[smooth] Variable type revision (part 2). * src/smooth/ftgrays.c (TArea): Restore original definition as `int'. (gray_render_line) [FT_LONG64]: Updated. (gray_convert_glyph): 32-bit band bisection stack should be 32 bands. (gray_convert_glyph_inner): Trace successes and failures.

597c6959

2016-07-01T23:27:41

[smooth] Variable type revision (part 1). This patch restores original `TCoord' definition as `int' so that the rendering pool is used more efficiently on LP64 platforms (unix). * src/smooth/ftgrays.c (gray_TWorker, TCell, gray_TBand): Switch some fields to `TCoord'. (gray_find_cell, gray_render_scanline, gray_render_line, gray_hline, gray_sweep, gray_convert_glyph): Updated.

ef0a3e7e

2016-06-28T22:56:22

[smooth] Minor clean-ups. * src/smooth/ftgrays.c (gray_TWorker): Remove redundant `ycount'. (gray_sweep, gray_convert_glyph, gray_dump_cells): Updated.

c9cf359f

2016-06-28T00:30:58

[smooth] Minor clean-ups. * src/smooth/ftgrays.c (gray_convert_glyph): Do not use volatile qualifier. (gray_raster_render): Move span initializations from here. (gray_sweep): ... to here and remove unused `target' argument.

25e82bc2

2016-06-23T23:17:39

[smooth] Consolidate memory management. * src/smooth/ftgrays.c (gray_init_cells): Remove function. (gray_TWorker): Remove fields that become local variables. (gray_raster_render): Move rendering buffer declaration from here. (gray_convert_glyph): ... to here and update accordingly.

e2233481

2016-06-22T23:14:26

[smooth] Consolidate boundary checks. Removing the checks from `gray_hline' shaves 1% off rendering speed. * src/smooth/ftgrays.c [STANDALONE_]: Duplicate `FT_MIN' and `FT_MAX'. (gray_TWorker): No need to store `clip_box'. (gray_hline): Remove unnecessary boundary checks. (gray_convert_glyph): Move boundary checks from here. (gray_raster_render): ... to here and consolidate.

78e8fc0d

2016-06-22T00:04:08

[smooth] Use `FT_Outline_Get_CBox'. * src/smooth/ftgrays.c [STANDALONE_]: Duplicate `FT_Outline_Get_CBox'. (gray_compute_cbox): Remove this function. (gray_convert_glyph): Update to use `FT_Outline_Get_CBox'.

20c6ef4c

2016-06-21T11:39:34

[smooth] Remove compiler warnings. * src/smooth/ftgrays.c (gray_convert_glyph): Fix reports from clang.

3c64af98

2016-06-20T00:01:55

[smooth] Sanitize memory managenent. * src/smooth/ftgrays.c (gray_convert_glyph): Cleaned up.

74fd251b

2016-06-18T22:31:26

[smooth] Remove `band_shoot' that never worked. * src/smooth/ftgrays.c (gray_TWorker): Remove `band_shoot'. (gray_convert_glyph): Updated.

3e1f7bc5

2016-06-18T22:13:23

Fresh typos.

72a06531

2016-06-17T23:10:22

[raster, smooth] Handle FT_RENDER_POOL_SIZE better. * src/raster/ftraster.c (FT_MAX_BLACK_POOL): New macro. (ft_black_render): Updated. * src/smooth/ftgrays.c (FT_MAX_GRAY_POOL): New macro. (gray_raster_render): Updated.

7f569f45

2016-06-14T23:49:31

Move function.

32acceff

2016-06-14T23:38:17

* src/smooth/ftgrays.c (gray_hline): Optimize if-condition.

77180c7a

2016-06-08T23:31:28

[smooth] Re-enable new line renderer on 64-bit archs. * src/smooth/ftgrays (gray_render_line): Conditionally re-enable new implementation, where it is safe from overflows.

9cf232ed

2016-06-08T23:19:41

[smooth] Minor clean-ups. * src/smooth/ftgrays.c (gray_dump_cells): Move out of the way. (gray_render_span): Remove spurious casts and streamline.

e9f95093

2016-05-26T23:46:38

[smooth] Shrink bisection stack. The convergence of Bézier flatteners is fast with the deviation from straight line being assymptotically cut 4-fold on each bisection. This justifies smaller bisection stack size. * src/smooth/ftgrays.c (gray_TWorker): Remove common `bez_stack'. (gray_render_conic): Create and use conic `bez_stack'. Move back the band analysis from... (gray_conic_to): ... here. (gray_render_cubic): Create and use cubic `bez_stack'. Move back the band analysis from... (gray_cubic_to): ... here. (gray_move_to): Updated.

6e88087d

2016-05-05T23:41:03

[smooth] More efficient accounting of conic splits and draws. A single decrement counter of segments to draw, instead of an array, contains all the information necessary to decide when to split and when to draw a conic segment. The number of splits before each draw is equal to the number of trailing zeros in the counter. * src/smooth/ftgrays.c (gray_TWorker): Remove `lev_stack'. (gray_render_conic): Updated to use decrement counter of segments.

98967b77

2016-03-23T23:07:24

Add comment.

31f2dc19

2016-03-23T07:31:59

[raster, smooth] Directly test outline size (#47500). This improves stand-alone compilation. * src/base/ftoutln.c (FT_Outline_Render): Move cbox size test to... * src/raster/ftraster.c (ft_black_render), src/smooth/ftgrays.c (gray_raster_render): ...these functions.

e9181aba

2016-03-23T06:58:20

[raster, smooth] Fix some clang sanitizer runtime issues. * src/raster/ftraster.c (ft_black_reset, ft_black_set_mode, ft_black_render): Harmonize signatures with `ftimage.h'. * src/smooth/ftgrays.c (gray_raster_render, gray_raster_reset): Ditto.

3beccbdf

2016-03-21T00:07:47

[smooth] Partly revert recent changes. * src/smooth/ftgrays.c (gray_conic_to, gray_cubic_to): Rework conditions to fix rendering issues.

8e8bb126

2016-03-18T23:21:59

[smooth] Minor refactoring and microoptimizations. * src/smooth/ftgrays.c (gray_render_conic, gray_render_cubic): Move band clipping from here. (gray_conic_to, gray_cubic_to): ... to here. (gray_rander_line, gray_render_scanline): Initialize variables closer to their use.

84b2c633

2016-03-17T00:53:09

[smooth] Minor refactoring. * src/smooth/ftgrays.c (gray_render_conic, gray_render_cubic): Move upscaling from here... (gray_conic_to, gray_cubic_to):... to here.

1865575a

2016-03-14T22:39:22

[smooth] Temporarily revert 6eb6158dd787 (#47114). * src/smooth/ftgrays.c (gray_render_line): Old implementation.

d0b0e31e

2016-03-06T23:01:50

[smooth] Replace left shifts with multiplications (#47114). * src/smooth/ftgrays.c (SUBPIXELS, UPSCALE, DOWNSCALE): Do it.

015c6e08

2016-03-01T06:45:52

Fix clang warnings. * src/autofit/aflatin.c (af_latin_hints_compute_segments): Use FT_UShort for `min_flags' and `max_flags'. Initialize `prev_*' variables. * src/cff/cffobjs.c (cff_face_init) [FT_DEBUG_LEVEL_TRACE]: Fix types of local variables. * src/smooth/ftgrays.c (gray_dump_cells) [FT_DEBUG_LEVEL_TRACE]: Update `printf' format string. * src/tools/ftfuzzer/ftfuzzer.cc (setIntermediateAxis): Add cast. (LLVMFuzzerTestOneInput): Fix loop type.

08e89b73

2016-02-16T22:32:13

[smooth] Fix integer overflow (#47114). * src/smooth/ftgrays.c (TArea): Make it unconditionally `long'.

9adeab64

2016-01-13T11:54:10

Update copyright year.

9d0b76d7

2016-01-12T22:27:29

Don't use macro names that start with `_[A-Z]' [2/3]. Such macro names are reserved for both C and C++. * include/freetype/ftimage.h, src/raster/ftraster.c, src/smooth/ftgrays.c, src/smooth/ftgrays.h: s/_STANDALONE_/STANDALONE_/.

37412ff9

2016-01-12T21:37:13

Don't use macro names that contain `__' [1/2]. Such macro names are reserved for both C and C++. */*: Replace macros of the form `__XXX_H__' with `XXX_H_'.

6eb6158d

2015-10-06T22:39:54

[smooth] Faster alternative line renderer. This implementation renders the entire line segment at once without subdividing it into scanlines. The main speed improvement comes from reducing the number of divisions to just two per line segment, which is a bare minimum to calculate cell coverage in a smooth rasterizer. Notably, the progression from cell to cell does not itself require any divisions at all. The speed improvement is more noticeable at larger sizes. * src/smooth/ftgrays.c (gray_render_line): New implementation.

e2dae8fe

2015-10-01T22:03:34

[smooth] Clean up worker. * src/smooth/ftgrays.c (gray_TWorker): Remove never used fields.

8bbcfb2c

2015-09-30T23:08:53

[smooth] Clean up worker. * src/smooth/ftgrays.c (gray_TWorker): Remove lightly used `last_ey'. (gray_start_cell, gray_render_line): Update.

d8a44ff9

2015-09-26T22:33:55

Remove unused macro.

b002f688

2015-09-07T13:47:36

* src/smooth/ftgrays.c (gray_render_line): Simplify clipping.

5a6dc872

2015-09-04T23:14:46

[raster,smooth] Microoptimizations. * src/raster/ftraster.c (Insert_Y_Turn, Finalize_Profile_Table, Beziier_Up, ): Use do-while loops. * src/smooth/ftgrays.c (gray_render_scanline, gray_render_line, gray_convert_glyph): Ditto.

f9be567f

2015-07-09T15:10:31

Better support of user-supplied C++ namespaces. See http://lists.nongnu.org/archive/html/freetype-devel/2015-07/msg00008.html for a rationale. * src/autofit/afpic.h, src/base/basepic.h, src/cff/cffpic.h, src/pshinter/pshpic.h, src/psnames/pspic.h, src/raster/rastpic.h, src/sfnt/sfntpic.h, src/smooth/ftspic.h, src/truetype/ttpic.h (FT_BEGIN_HEADER, FT_END_HEADER): Move macro calls to not enclose header files that contain FT_{BEGIN,END}_HEADER macros by themselves. * src/autofit/aftypes.h [FT_DEBUG_AUTOFIT]: Include FT_CONFIG_STANDARD_LIBRARY_H earlier. * src/truetype/ttpic.h: Include FT_INTERNL_PIC_H.

392cf22f

2015-06-25T13:04:57

Another adjustment to header locations. This change is a result of a discussion thread on freetype-devel http://lists.nongnu.org/archive/html/freetype-devel/2015-06/msg00041.html Re-introduce the `freetype2' subdirectory for all FreeType header files after installation, and rename the `freetype2' subdirectory in the git repository to `freetype'. * include/freetype2: Renamed to... * include/freetype: This. * CMakeLists.txt (PUBLIC_HEADERS, PUBLIC_CONFIG_HEADERS, PRIVATE_HEADERS): Updated. Update creation of `ftconfig.h'. Install generated `ftconfig.h'. * Jamfile (HDRMACRO, RefDoc), autogen.sh: Updated. * builds/amiga/include/config/ftconfig.h, builds/freetype.mk (PUBLIC_DIR), builds/symbian/bld.inf, builds/toplevel.mk (work), builds/unix/freetype2.in: Updated. * builds/unix/freetype-config.in: Updated. * builds/unix/configure.raw: Don't check for `rmdir'. * builds/unix/unix-def.in (DELDIR): Use `rm -rf', which is portable according to the autoconf info manual. * builds/unix/install.mk (install, uninstall, distclean_project_unix): Update and simplify. * builds/wince/*, builds/windows/*: Updated. * devel/ft2build.h, include/ft2build.h: Updated. * include/freetype2/config/ftheader.h, include/freetype2/internal/ftserv.h, include/freetype2/internal/internal.h: Update all header file macros. * src/tools/chktrcmp.py (TRACE_DEF_FILES): Updated. * docs/*: Updated.

8502c98b

2015-06-22T06:35:23

Fix Savannah bug #45097. We no longer `pollute' the namespace of possible header file names; instead we move `ft2build.h' up by one level so that it gets installed in the default include directory (e.g., /usr/local/include). After this commit, only `ft2build.h' stays in the compiler's include path. No visible changes for the user who follows the standard FreeType header inclusion rules. * include/*: Move to ... * include/freetype2/*: This directory, except `ft2build.h'. * CMakeLists.txt (PUBLIC_HEADERS, PUBLIC_CONFIG_HEADERS, PRIVATE_HEADERS), Jamfile (HDRMACRO, RefDoc), autogen.sh: Updated. * builds/amiga/include/config/ftconfig.h, builds/freetype.mk (PUBLIC_DIR), builds/symbian/bld.inf, builds/toplevel.mk (work), builds/unix/install.mk (install, uninstall), builds/unix/freetype2.in: Updated. * builds/unix/freetype-config.in: Updated. Emit -I directory only if it is not `/usr/include'. * builds/wince/*, builds/windows/*: Updated. * devel/ft2build.h, include/ft2build.h: Updated. * include/freetype2/config/ftheader.h, include/freetype2/internal/ftserv.h, include/freetype2/internal/internal.h: Update all header file macros. * src/tools/chktrcmp.py (TRACE_DEF_FILES): Updated. * docs/*: Updated.

31d97df9

2015-06-21T19:12:12

Make Jam support work again. This is just very basic stuff and just a little bit tested on GNU/Linux only. I won't delve into this since I'm not a Jam user. * Jamfile: Call `HDRMACRO' for `ftserv.h' also. (DEFINES): Replace with... (CCFLAGS): ... this. * src/Jamfile: Don't call `HDRMACRO' for `internal.h'; this is already handled in the top-level Jamfile. * src/autofit/Jamfile (DEFINES): Replace with... (CCFLAGS): ... this. (_sources): Add missing files. * src/cache/Jamfile: Don't call `HDRMACRO' for `ftcache.h'; it no longer contains macro header definitions. * src/base/Jamfile, src/cff/Jamfile, src/sfnt/Jamfile, src/truetype/Jamfile (_sources): Add missing files.

4d1f7af1

2015-02-23T07:04:36

[smooth, raster] Re-enable standalone compilation. * src/raster/ftraster.c (FT_RENDER_POOL_SIZE, FT_MAX) [_STANDALONE_]: Define macros. * src/smooth/ftgrays.c (FT_RENDER_POOL_SIZE, FT_MAX, FT_ABS, FT_HYPOT) [_STANDALONE_]: Define macros.

cb13e710

2015-02-23T06:41:52

[smooth] Signedness fixes. * src/smooth/ftgrays.c, src/smooth/ftsmooth.c: Apply.

f57fc59e

2015-01-17T20:41:43

Run `src/tools/update-copyright'.

b2ba6866

2015-01-14T18:43:13

[smooth] Fix uninitialized memory access. Looks like `ras.span_y' could always be used without initialization. This was never detected by valgrind before because the library-wide `raster_pool' was used for the worker object and `raster_pool' was originally zero'ed. But subsequent reuses of it were using `span_y' uninitialized. With the recent change to not use `render_pool' and allocate worker and buffer on the stack, valgrind now detects this uninitialized access. * src/smooth/ftgrays.c (gray_raster_render): Initialize `ras.span_y'.

747ae2c8

2015-01-14T17:54:26

[smooth] Allocate render pool for smooth rasterizer on the stack. Instead of using the `render_pool' member of `FT_Library' that is provided down to the rasterizer, completely ignore that and allocate needed objects on the stack instead. With this patch, rasterizing glyphs from different faces from different threads doesn't crash in the smooth rasterizer. Bugs: https://bugzilla.redhat.com/show_bug.cgi?id=678397 https://bugzilla.redhat.com/show_bug.cgi?id=1004315 https://bugzilla.redhat.com/show_bug.cgi?id=1165471 https://bugs.freedesktop.org/show_bug.cgi?id=69034 * src/smooth/ftgrays.c (gray_TRaster): Remove `buffer', `buffer_size', `band_size', and `worker' members. (gray_raster_render): Create `buffer', `buffer_size', and `band_size' locally. (gray_raster_reset): Updated.

kc3-lang/freetype/src/smooth

src/smooth

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