kc3-lang/freetype/src/base/ftobjs.c

src/base/ftobjs.c

Log

Author Commit Date CI Message
Werner Lemberg e361cc6a 2018-06-17T09:13:37 s/trace_bitmap/trace_checksum/. * include/freetype/internal/fttrace.h: s/bitmap/checksum/. * src/base/ftobjs.c (FT_COMPONENT): s/trace_bitmap/trace_checksum/. Adjust code.
Werner Lemberg 9b31c446 2018-06-14T21:30:43 Replace `FT_Get_GlyphLayers' with `FT_Get_Color_Glyph_Layer'. This avoids any additional allocation of COLR related structures in a glyph slot. * include/freetype/freetype.h (FT_Glyph_Layer, FT_Glyph_LayerRec, FT_Get_GlyphLayers): Removed. * include/freetype/internal/ftobjs.h (FT_Colr_InternalRec): Removed. (FT_Slot_InternalRec): Remove `color_layers'. * include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func): Removed. (SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): Remove `load_colr_layer'. * src/base/ftobjs.c (ft_glyph_slot_done): Updated. (FT_Render_Glyph_Internal): Use `FT_Get_Color_Glyph_Layer'. (FT_Get_GlyphLayers): Removed. * src/sfnt/sfdriver.c (sfnt_interface): Updated. * src/sfnt/ttcolr.c (tt_face_load_colr_layers): Removed. * src/sfnt/ttcolr.h: Updated. * src/truetype/ttgload.c (TT_Load_Glyph): Updated.
Werner Lemberg f9d05eb3 2018-06-14T21:02:49 Provide iterative API to access `COLR' data. This solution doesn't store any data in an `FT_GlyphSlot' object. * include/freetype/freetype.h (FT_LayerIterator): New structure. (FT_Get_Color_Glyph_Layer): New function. * include/freetype/internal/sfnt.h (TT_Get_Colr_Layer_Func): New function type. (SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): Add it. * src/base/ftobjs.c (FT_Get_Color_Glyph_Layer): Implement it. * src/sfnt/ttcolr.c (tt_face_get_colr_layer): New function. * src/sfnt/ttcolr.h: Updated. * src/sfnt/sfdriver.c (sfnt_interface): Updated.
Werner Lemberg 33ac83e3 2018-06-14T21:00:23 Add glyph index and glyph load flags to glyph slot. * include/freetype/freetype.h (FT_GlyphSlotRec): Rename unused `reserved' field to `glyph_index'. * include/freetype/internal/ftobjs.h (FT_Slot_InternalRec): Add `load_flags' field. * src/base/ftobjs.c (FT_Load_Glyph): Set new fields.
Werner Lemberg 9ac9060d 2018-06-03T09:01:17 [GSoC] src/*.*: Convert block comments to `light' style. This monster commit was created by applying Nikhil's scripts `docconverter.py' and `markify.py' to all C header and source files, followed up by minor manual clean-up. No change in functionality, of course. I used commit f7419907bc6044b9b7057f9789866426c804ba82 from https://github.com/nikramakrishnan/freetype-docs.git.
Werner Lemberg ae2cd1b7 2018-05-30T09:34:57 Various minor color fixes. * include/freetype/config/ftheader.h (FT_COLOR_H): New macro. * include/freetype/internal/ftobjs.h (FT_Colr_Internal): Change type of `load_flags' to `FT_Int32'. * include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func): Change type of `idx' to `FT_UInt'. (TT_Blend_Colr_Func): Change type of `color_index' to `FT_UInt'. * src/base/ftobjs.c (FT_Render_Glyph_Internal): Change type of `load_flags' to `FT_Int32'. * src/sfnt/ttcolr.c (find_base_glyph_record, tt_face_load_colr_layers): Change type of `glyph_id' to `FT_UInt'. (tt_face_find_color, tt_face_colr_blend_layer): Change type of `color_index' to `FT_UInt'. Fix signedness and type issues. * src/sfnt/ttcolr.h: Updated.
Alexei Podtelezhnikov 7b73cb07 2018-05-24T22:38:24 [smooth] Formalize Harmony LCD rendering. This generalizes magic outline shifts that make Harmony LCD rendering work in terms of precise two-dimensional RGB subpixel positions. These coordinates are now set in time of the `smooth' module initialization and later used to shift a glyph outline for rendering. FT_RENDER_MODE_LCD and FT_RENDER_MODE_LCD_V use the same coordinates. The letter, however, rotates them before using. The LCD bitmap padding is also calculated using these coordinates. * include/freetype/internal/ftobjs.h (FT_LibraryRec): New array field `lcd_geometry'. * src/base/ftlcdfil.c (ft_lcd_padding): Reworked. * src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Updated accordingly. * src/smooth/ftsmooth.c [!FT_CONFIG_OPTION_SUBPIXEL_RENDERING] (ft_smooth_init): Initialize `lcd_geometry'. (ft_smooth_render_generic): Formalize outline shifts.
Werner Lemberg 583dabf2 2018-05-16T20:37:43 Add function `FT_Get_GlyphLayers' to access `COLR' table data. * include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec): Move this structure to... * include/freetype/freetype.h (FT_Glyph_LayerRec): ... this header file. (FT_Glyph_Layer): New typedef. Update code to use it where appropriate. * src/base/ftobjs.c (FT_Get_GlyphLayers): New function.
Alexei Podtelezhnikov f1458d2e 2018-05-15T21:47:18 [base] Fix mono bitmap presetting (#53896). It is rather fundamental to set monochrome bitmap based on rounded CBox because the b/w rasterizer turns on pixels when their centers are inside the glyph outline. The dropout control is unpredictable and can distort narrow glyphs if the bitmap is too wide. Reported by Chris Liddell. * src/base/ftobjs.c (ft_glyphslot_preset_bitmap): If BBox boundaries are too close, adjust them before rounding.
Werner Lemberg 2dd20916 2018-05-15T09:05:53 [sfnt] If `COLR' is present, don't assume that all glyphs use it. * src/sfnt/ttcolr.c (tt_face_load_colr_layers): Return FT_Err_Ok if current glyph is not a `COLR' base glyph. * src/truetype/ttgload.c (TT_Load_Glyph): Don't allocate `color_layers' if there are no color layers.
Werner Lemberg 06820637 2018-05-14T09:45:16 * src/base/ftobjs.c (FT_Load_Glyph): Fix signature of `pixel_modes'.
Werner Lemberg 1b2abda9 2018-05-13T10:58:49 * src/base/ftobjs.c (FT_Load_Glyph): Improve tracing.
Shao Yu Zhang f04d8175 2018-05-13T03:25:09 [sfnt] Preliminary support of coloured layer outlines. This commit enables OpenType's COLR/CPAL table handling; a typical application are color emojis that can be scaled to any size. If the color palette does not exist or is invalid, the rendering step rasterizes the outline instead. The current implementation assumes that the foreground is black. Enable this by defining option TT_CONFIG_OPTION_COLOR_LAYERS. There are still some issues with metrics; additionally, an API to fetch color layers is missing. * devel/ftoption.h, include/freetype/config/ftoption.h (TT_CONFIG_OPTION_COLOR_LAYERS): New macro. * include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec, FT_Colr_InternalRec): New structures. (FT_Slot_InternalRec): Add `color_layers' field. * include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func, TT_Blend_Colr_Func): New function types. (SFNT_Interface): Add `load_colr', `free_colr', `load_colr_layer', and `colr_blend' fields. * include/freetype/internal/tttypes.h (TT_FaceRec): Add `colr_and_cpal' field. * include/freetype/internal/tttags. (TTAG_COLR, TTAG_CPAL): New macros. * src/sfnt/ttcolr.c, src/sfnt/ttcolr.h: New files. * src/base/ftobjs.c (ft_glyphslot_done, FT_Render_Glyph_Internal): Handle glyph color layers. * src/sfnt/Jamfile (_sources), src/sfnt/rules.mk (SFNT_DRV_SRC): Add `ttcolr.c'. * src/sfnt/sfdriver.c: Include `ttcolr.h'. (PUT_COLOR_LAYERS): New macro. Update call to `FT_DEFINE_SFNT_INTERFACE'. * src/sfnt/sfnt.c: Include `ttcolr.c'. * src/sfnt/sfobjs.c (sfnt_load_face): Load `COLR' and `CPAL' tables. (sfnt_done_face): Updated. * src/truetype/ttgload.c (TT_Load_Glyph): Handle color layers.
Werner Lemberg 95149592 2018-05-02T20:27:48 Remove FT_CONFIG_OPTION_PIC and related code. */* [FT_CONFIG_OPTION_PIC]: Remove all code guarded by this preprocessor symbol. */*: Replace `XXX_GET' macros (which could be either a function in PIC mode or an array in non-PIC mode) with `xxx' arrays. * include/freetype/internal/ftpic.h, src/autofit/afpic.c, src/autofit/afpic.h, src/base/basepic.c, src/base/basepic.h, src/base/ftpic.c, src/cff/cffpic.c, src/cff/cffpic.h, src/pshinter/pshpic.c, src/pshinter/pshpic.h, src/psnames/pspic.c, src/psnames/pspic.h, src/raster/rastpic.c, src/raster/rastpic.h, src/sfnt/sfntpic.c, src/sfnt/sfntpic.h, src/smooth/ftspic.c, src/smooth/ftspic.h, src/truetype/ttpic.c, src/truetype/ttpic.h: Removed.
Werner Lemberg 0a0c2256 2018-01-02T09:33:57 Update copyright year.
Werner Lemberg 98ba0c4a 2017-12-08T18:38:41 New `ftdriver.h' file, covering all driver modules. This reduces redundancy and increases synergy; it also reduces the number of header files. * include/freetype/config/ftheader.h (FT_DRIVER_H): New macro. (FT_AUTOHINTER_H, FT_CFF_DRIVER_H, FT_TRUETYPE_DRIVER_H, FT_PCF_DRIVER_H, FT_TYPE1_DRIVER_H): Make them aliases to FT_DRIVER_H. * include/freetype/ftautoh.h, include/freetype/ftcffdrv.h, include/freetype/ftpcfdrv.h, include/freetype/ftt1drv.h, include/freetype/ftttdrv.h: Replaced with... * include/freetype/ftdriver.h: ...this new file. (FT_CFF_HINTING_ADOBE, FT_T1_HINTING_ADOBE): Renamed to... (FT_HINTING_ADOBE): ... this new macro. (FT_CFF_HINTING_FREETYPE, FT_T1_HINTING_FREETYPE): Renamed to... (FT_HINTING_FREETYPE): ... this new macro. * src/*/*: Updated accordingly.
Nikolaus Waxweiler a364e38a 2017-11-14T07:54:53 Use Adobe hinting engine for `light' hinting of both CFF and Type 1. Since Ewald Hew factored the Adobe hinting engine out of the CFF driver code, we can now use it on Type 1 (and CID) font formats, as both have the same hinting philosophy. This change activates the Adobe hinter when in LIGHT mode, and therefore always unless explicitly asking for the auto-hinter. This makes LIGHT behavior consistent with CFF fonts. As of this commit, the hinting engine table looks as follows. LIGHT NORMAL ------------------------- TrueType Auto v40 CFF Adobe Adobe Type 1 Adobe Adobe
Alexei Podtelezhnikov 8f5568bf 2017-11-06T21:42:46 * src/base/ftobjs.c (FT_Load_Glyph): Relocate condition.
Alexei Podtelezhnikov d74440a3 2017-10-20T16:27:33 [base] Improve tracing in FT_Load_Glyph, FT_*_Size. * src/base/ftobjs.c (FT_Load_Glyph): Tag tracing messages with function name, glyph index, and load flags. (FT_Select_Metrics, FT_Request_Metrics): Remove all tracing. (FT_Select_Size, FT_Request_Size): Improve tracing.
Alexei Podtelezhnikov c10e7800 2017-10-18T23:05:51 [base] Improve tracing in FT_Render_Glyph. * src/base/ftobjs.c (FT_Render_Glyph_Internal): Add total coverage calculations and downgrade Netpbm dump to bitmap:7.
Alexei Podtelezhnikov ccb0f799 2017-10-15T14:19:13 [base, cff] Fix MSVC warnings. * src/base/ftobjs.c (FT_New_Library): C4702: unreachable code. (ft_glyphslot_preset_bitmap): C4244: possible loss of data. * src/cff/cffload.c (cff_blend_doBlend): C4244: possible loss of data. Turn `sum' into unsigned.
Alexei Podtelezhnikov 6bea49e0 2017-10-14T22:45:11 [base] Netpbm image tracing. * src/base/ftobjs.c (FT_Load_Glyph): Trace bitmap size. (FT_Render_Glyph_Internal): Trace bitmap in Netpbm format. * src/smooth/ftgrays.c (gray_sweep): Sweep remnants of span tracing.
Werner Lemberg b7e43f7d 2017-10-08T11:58:39 * src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Integer overflows. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3579
Werner Lemberg c3083e45 2017-10-05T14:32:24 * src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Fix integer overflow. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3539
Werner Lemberg 9b549fa6 2017-09-30T16:36:28 [base,cff,cid] Whitespace, formatting.
Alexei Podtelezhnikov 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.
Alexei Podtelezhnikov c26f7f97 2017-09-29T00:13:19 Bitmap metrics presetting [2/2]. * src/base/ftobjs.c (FT_Load_Glyph): Preset the bitmap metrics when appropriate but `FT_Render_Glyph' is not called. * include/freetype/freetype.h (FT_GlyphSlotRec): Document the change.
Alexei Podtelezhnikov 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'.
Alexei Podtelezhnikov 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.
Alexei Podtelezhnikov 22a7f5b8 2017-09-07T22:36:02 Branding fixes.
Werner Lemberg 134de096 2017-07-12T22:16:37 [base] Integer overflow. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2573 * src/base/ftobjs.c (ft_glyphslot_grid_fit_metrics): Use FT_PIX_CEIL_LONG and FT_PIX_ROUND_LONG.
Werner Lemberg dcd8de27 2017-06-09T11:21:58 */*: Remove `OVERFLOW_' prefix. This increases readability.
Werner Lemberg addb2ddd 2017-06-03T21:05:42 [base, cff, truetype] Integer overflows. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2060 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2062 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2063 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2068 * src/base/ftobjs.c (ft_glyphslot_grid_fit_metrics): Use OVERFLOW_ADD_LONG and OVERFLOW_SUB_LONG. * src/cff/cf2blues.c (cf2_blues_capture), src/cff/cf2hints.c (cf2_hintmap_adjustHints): Use OVERFLOW_SUB_INT32. * src/truetype/ttgload.c (compute_glyph_metrics): User OVERFLOW_SUB_LONG. * src/truetype/ttinterp.c (Direct_Move, Direct_Move_Orig, Direct_Move_X, Direct_Move_Y, Direct_Move_Orig_X, Direct_Move_Orig_Y, Move_Zp2_Point, Ins_MSIRP): Use OVERFLOW_ADD_LONG and OVERFLOW_SUB_LONG.
Werner Lemberg 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.
Werner Lemberg 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.
Werner Lemberg 7abf0cb7 2017-04-30T17:25:11 [autofit] Fix metrics computation. Problem reported by Markus Trippelsdorf <markus@trippelsdorf.de> and Nikolaus Waxweiler <madigens@gmail.com>. * src/base/ftobjs.c (FT_Request_Size): Trigger recomputation of auto-hinter metrics. Without this change, multiple size changing calls for a single face fail.
Werner Lemberg 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.
Werner Lemberg 5412d886 2017-04-22T12:48:50 Introduce `FT_Size_InternalRec' structure. We are going to extend this later on. * include/freetype/internal/ftobjs.h (FT_Size_InternalRec): New structure with a single field `module_data'. * src/base/ftobjs.c (FT_New_Size): Allocate `internal' field of `FT_Size' structure. * src/cff/cffgload.c (cff_builder_init, cff_decoder_prepare): Use `size->internal->module_data' instead of `size->internal'. * src/cff/cffobjs.c (cff_size_done): Deallocate `module_data'. (cff_size_init, cff_size_select, cff_size_request): Use `size->internal->module_data' instead of `size->internal'. * src/cif/cidobjs.c (cid_size_done, cid_size_init, cid_size_request): Use `size->internal->module_data' instead of `size->internal'. * src/psaux/psobjs.c (t1_builder_ini): Use `size->internal->module_data' instead of `size->internal'. * src/type1/t1objs.c (T1_Size_Done, T1_Size_Init, T1_Size_Request): Use `size->internal->module_data' instead of `size->internal'.
Hin-Tak Leung 5efba4c4 2017-04-16T07:23:24 Fix tracing messages. * src/base/ftobjs.c (FT_Face_GetCharVariantIndex, FT_Face_GetCharVariantIsDefault, FT_Face_GetVariantsOfChar): Print correct function name.
Werner Lemberg 9357ef80 2017-03-15T07:56:22 Typo: s/stroke/strike/.
Werner Lemberg 753e1131 2017-02-20T09:01:14 [cff] Introduce `random-seed' property (2/2). * src/base/ftobjs.c: Include `FT_CFF_DRIVER_H'. (open_face): Initialize `face->internal->random_seed'. (FT_Face_Properties): Handle `FT_PARAM_TAG_RANDOM_SEED'. * src/cff/cffdrivr.c (cff_property_set): Handle `random-seed' property.
Nikolaus Waxweiler 2b0ac189 2017-02-18T10:42:23 Add face property for stem darkening. * include/freetype/ftautoh.h (FT_PARAM_TAG_STEM_DARKENING): New macro. * include/freetype/internal/ftobjs.h (FT_Face_InternalRec): Add `no_stem_darkening' field. * src/autofit/afloader.c (af_loader_load_glyph), src/autofit/afmodule.c (af_property_set): Updated. * src/base/ftobjs.c: Include FT_AUTOHINTER_H. (ft_open_face_internal): Updated. (FT_Face_Properties): Handle FT_PARAM_TAG_STEM_DARKENING. * src/cff/cf2ft.c (cf2_decoder_parse_charstrings): Updated. * src/cff/cffdrivr.c (cff_property_set): Updated.
Nikolaus Waxweiler 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'.
Nikolaus Waxweiler 64cdee73 2017-02-15T08:06:35 Add new function `FT_Face_Properties'. This commit provides the framework, to be filled with something useful in the next commits. * include/freetype/freetype.h (FT_Face_Properties): Declare. * src/base/ftobjs.c (FT_Face_Properties): New function.
Werner Lemberg c529885b 2017-01-12T08:42:55 * src/base/ftobjs.c (ft_open_face_internal): Improve tracing.
Werner Lemberg 563ae780 2017-01-04T20:16:34 Update copyright year.
Werner Lemberg 24be60b5 2017-01-01T08:20:38 */*: Use hex numbers for errors in tracing messages.
Werner Lemberg f80c4473 2016-12-26T23:57:45 Replace `++foo' and `--foo' with `foo++' and `foo--', resp.
Werner Lemberg 4441f7b2 2016-12-26T17:08:17 Replace `foo == NULL' and `foo != NULL' with `!foo' and `foo', resp. Other minor formatting.
Werner Lemberg 57a6733d 2016-12-21T06:52:23 [base] Improve sanity check for Mac resources (#49888). * src/base/ftobjs.c (Mac_Read_sfnt_Resource): Abort if `rlen' is not positive.
Werner Lemberg b5573032 2016-12-20T23:22:06 ftobjs.c: Formatting.
Werner Lemberg d5fe8da7 2016-12-20T22:03:40 Spelling.
Werner Lemberg 5743df77 2016-12-18T21:01:03 [base] Fix invalid mac font recursion. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=304 * src/base/ftobjs.c (FT_Open_Face): Code moved to... (ft_open_face_internal): ... this function. Add a parameter to control whether we try special Mac font handling in case of failure. (FT_Open_Face, FT_New_Face, FT_New_Memory_Face, open_face_from_buffer): Use `ft_open_face_internal'.
Werner Lemberg 5d664b6d 2016-12-17T20:47:42 Use FT_SET_ERROR where useful. Other minor code formatting.
Werner Lemberg 3b125e95 2016-12-17T10:02:19 Improve tracing of `FT_Open_Face'. * src/base/ftobjs.c (FT_Open_Face): Return info on number of available faces and numbered instances, or the indices of the requested face and numbered instance. * src/sfnt/sfobjs. (sfnt_open_font): Trace number of subfonts.
Werner Lemberg a7dc0c35 2016-12-14T18:54:21 Extend functionality of `ft_module_get_service'. It can now differentiate between local and global searches. * src/base/ftobjs.c (ft_module_get_service): Add `global' argument. (FT_Get_TrueType_Engine_Type): Updated. * src/cff/cffdrivr.c (cff_get_ps_name, cff_get_cmap_info): Updated. * include/freetype/internal/ftobjs.h: Updated. * include/freetype/internal/ftserv.h (FT_FACE_FIND_GLOBAL_SERVICE): Updated.
Werner Lemberg e1ee5476 2016-11-06T12:39:05 * src/base/ftobjs.c (FT_Render_Glyph_Internal): Fix tracing.
Werner Lemberg 37e193e9 2016-11-06T12:32:51 Introduce a way of quickly retrieving (embedded) bitmap metrics. `FT_Load_Glyph' doesn't generate a bitmap for a non-bitmap glyph until the user calls `FT_Render_Glyph'. However, it always allocates memory for bitmaps and copies or decodes the contents of a bitmap glyph, which can be quite slow for PNG data. * include/freetype/freetype.h (FT_LOAD_BITMAP_METRICS_ONLY): New macro. * src/base/ftobjs.c (FT_Load_Glyph): Unset FT_LOAD_RENDER if FT_LOAD_BITMAP_METRICS_ONLY is used. * src/sfnt/ttsbit.c (tt_sbit_decoder_alloc_bitmap, tt_sbit_decoder_load_bitmap): Add argument to control allocation of the glyph slot. (tt_sbit_decoder_load_image, tt_sbit_decoder_load_compound, tt_face_load_sbit_image): Updated. * src/pcf/pcfdrivr.c (PCF_Glyph_Load): Quickly exit if `FT_LOAD_BITMAP_METRICS_ONLY' is set. * src/pfr/pfrsbit.c, src/pfr/pfrsbit.h (pfr_slot_load_bitmap): Add argument to control allocation of the glyph slot. * src/pfr/pfrobjs (pfr_slot_load): Updated. * src/winfonts/winfnt.c (FNT_Load_Glyph): Ditto. * docs/CHANGES: Updated.
Werner Lemberg d609b7c1 2016-09-09T22:11:07 [sfnt] Don't provide (completely) broken strike data. FreeType tries to sanitize strike header data; we now reject completely broken ones. * include/freetype/internal/tttypes.h (TT_FaceRec): New `sbit_strike_map' array pointer. * src/base/ftobjs.c (FT_Match_Size): Reject matches where either width or height would be zero. Add tracing message in case of error. * src/sfnt/sfobjs.c (sfnt_load_face): Populate `sbit_strike_map', only using (more or less) valid strike header data for FT_Face's `available_sizes' array. (sfnt_done_face): Updated. * src/sfnt/ttsbit.c (tt_face_set_sbit_strike): Use `sbit_strike_map'. (tt_face_load_strike_metrics): Improve tracing. * src/truetype/ttdriver.c (tt_size_select): Use `sbit_strike_map'.
Werner Lemberg b98dfda3 2016-09-03T08:20:31 [base] Avoid negative bitmap stroke dimensions (#48985). * src/base/ftobjs.c (FT_Open_Face): Check whether negation was actually successful. For example, this can fail for value -32768 if the type is `signed short'. If there are problems, disable the stroke.
Werner Lemberg 605946af 2016-07-11T16:14:36 Conditionally compile environment support. * include/freetype/internal/ftobjs.h, src/autofit/afmodule.c, src/base/ftobjs.c, src/cff/cffdrivr.c, src/truetype/ttdriver.c: Decorate with `FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES' where necessary.
Werner Lemberg c3beb30a 2016-07-10T07:11:45 Add function `ft_property_string_set'. This is a preparation for handling an `FREETYPE_PROPERTIES' environment variable to control (some) driver properties. No change in functionality. * src/base/ftobjs.c (ft_property_do): Add `value_is_string' parameter. (ft_property_string_set): New function. (FT_Property_Set, FT_Property_Get): Updated. * include/freetype/internal/ftobjs.h: Updated. * include/freetype/internal/services/svprop.h (FT_Properties_SetFunc): Add `value_is_string' parameter. * src/autofit/afmodule.c (af_property_set), src/cff/cffdrivr.c (cff_property_set), src/truetype/ttdriver.c (tt_property_set): Updated, emitting an error currently if `value_is_string' is set.
Werner Lemberg 5485a34c 2016-06-04T06:57:32 [truetype] Fix missed test for named instances (#48122). * src/truetype/ftobjs.c (Mac_Read_sfnt_Resource): Implement.
Werner Lemberg d583561e 2016-05-21T11:20:42 Minor clang++ fixes. * src/base/ftobjs.c (FT_Add_Module), src/psaux/psobjs.c (ps_parser_load_field), src/type1/t1load.c (parse_subrs): Add initializer. * src/cache/ftccache.h (FTC_CACHE_TRYLOOP_END): Avoid implicit conversion from NULL to boolean.
Werner Lemberg bebac3cf 2016-05-16T20:16:35 [base] Reject invalid sfnt Mac resource (#47891). * src/base/ftobjs.c (open_face_PS_from_sfnt_stream): Check validity of `CID ' and `TYPE1' table offset and length.
Alexei Podtelezhnikov e8542260 2016-04-08T23:21:34 Typos.
Werner Lemberg 0d053bac 2016-02-07T19:25:56 Fix runtime errors found by clang's sanitizer (#47082). * src/base/ftobjs.c (FT_Render_Glyph_Internal), src/base/ftoutln.c (FT_Outline_Copy), src/cache/ftcsbits.c (ftc_sbit_copy_bitmap): Properly handle empty input buffer.
Nikolaus Waxweiler 1d8d0b4e 2016-01-28T14:11:14 Remove unpatented hinter (3/3). * include/freetype/config/ftoption.h (TT_CONFIG_OPTION_UNPATENTED_HINTING): Remove. * include/freetype/internal/ftobjs.h (FT_Face_InternalRec): Remove `ignore_unpatented_hinter' field. Update users. (FT_DEBUG_HOOK_UNPATENTED_HINTING): Remove. Update users. * include/freetype/internal/tttypes.h (TT_FaceRec): Remove `unpatented_hinting' field. Update users. * src/base/ftpatent.c (_tt_check_patents_in_range, _tt_check_patents_in_table, _tt_face_check_patents): Remove. (FT_Face_CheckTrueTypePatents, FT_Face_SetUnpatentedHinting): Replace code with dummies. * src/truetype/ttobjs.c (tt_face_init): Remove now defunct code. * src/truetype/ttobjs.h (TT_GraphicsState): Remove `both_x_axis' field.
Werner Lemberg 9adeab64 2016-01-13T11:54:10 Update copyright year.
Werner Lemberg 4099281f 2015-12-14T07:51:25 [base] Fix calls to `FT_Stream_Seek'. * src/base/ftobjs.c (Mac_Read_sfnt_Resource, FT_Open_Face): Set `error'.
Ben Wagner f0cc1738 2015-12-14T07:00:41 [base] Check error when seeking to data supplied offset (#46635). * src/base/ftobjs.c (open_face_PS_from_sfnt_stream): `ft_lookup_PS_in_sfnt_stream' returns offset and and length from user supplied data. Use of this these values must be checked.
Jan Alexander Steffens (heftig) ccd3188a 2015-11-10T22:33:45 Allow native CFF hinter in FT_RENDER_MODE_LIGHT. Both the native CFF hinter and the auto-hinter now have a very similar rendering style. * include/freetype/freetype.h: Mention that FT_LOAD_TARGET_LIGHT no longer implies FT_LOAD_FORCE_AUTOHINT. * include/freetype/ftmodapi.h (FT_MODULE_DRIVER_HINTS_LIGHTLY): New macro. * include/freetype/internal/ftobjs.h (FT_DRIVER_HINTS_LIGHTLY): New macro. * src/cff/cffdrivr.c (cff_driver_class): Use it. * src/base/ftobjs.c (FT_Load_Glyph): Update auto-hinter selection logic.
Werner Lemberg e03214e1 2015-10-15T16:58:13 [base] Compute MD5 checksums only if explicitly requested. This improves profiling accuracy. * src/base/ftobjs.c (FT_Render_Glyph_Internal): Implement it.
Werner Lemberg 2a20c92c 2015-10-14T15:23:15 [base] Use `FT_' namespace for MD5 functions (#42366). * src/base/ftobjs.c (MD5_*): Define as `FT_MD5_*'. Undefine HAVE_OPENSSL.
suzuki toshiya fb5268cf 2015-09-28T02:01:43 [base] Fix a leak by broken sfnt-PS or resource fork (#46028). open_face_from_buffer() frees passed buffer if valid font is not found. But if copying to the buffer is failed, the allocated buffer should be freed within the caller. * src/base/ftobjs.c (open_face_PS_from_sfnt_stream): Free the buffer `sfnt_ps' if an error caused before calling open_face_from_buffer(). (Mac_Read_sfnt_Resource): Free the buffer `sfnt_data' if an error caused before calling open_face_from_buffer();
Werner Lemberg d57f2271 2015-09-26T08:44:26 * src/base/ftobjs.c (Mac_Read_sfnt_Resource): Add cast.
Werner Lemberg c409eb18 2015-09-24T12:39:38 [base, sfnt] Better checks for invalid cmaps (1/2). * src/base/ftobjs.c (FT_Get_Char_Index): Don't return out-of-bounds glyph indices. (FT_Get_First_Char): Updated. * src/sfnt/ttcmap.c (tt_cmap6_char_next): Don't return character codes greater than 0xFFFF. (tt_cmap8_char_index): Avoid integer overflow in computation of glyph index. (tt_cmap8_char_next): Avoid integer overflows in computation of both next character code and glyph index. (tt_cmap10_char_index): Fix unsigned integer logic. (tt_cmap10_char_next): Avoid integer overflow in computation of next character code. (tt_cmap12_next): Avoid integer overflows in computation of both next character code and glyph index. (tt_cmap12_char_map_binary): Ditto. (tt_cmap12_char_next): Simplify. (tt_cmap13_char_map_binary): Avoid integer overflow in computation of next character code. (tt_cmap13_char_next): Simplify.
suzuki toshiya e982f5b7 2015-09-21T23:07:22 [base] Check too long POST and sfnt resource (#45919). * src/base/ftbase.h (FT_MAC_RFORK_MAX_LEN): Maximum length of the resource fork for Mac OS. The resource fork larger than 16 MB can be written but could not be handled correctly, at least in Carbon routine. See https://support.microsoft.com/en-us/kb/130437 * src/base/ftobjs.c (Mac_Read_POST_Resource): No need `0x' for `%p' formatter. * src/base/ftbase.c (Mac_Read_POST_Resource): Check the fragment and total size of the concatenated POST resource before buffer allocation. (Mac_Read_sfnt_Resource): Check the declared size of sfnt resource before buffer allocation. * src/base/ftmac.c (read_lwfn, FT_New_Face_From_SFNT): Check the total resource size before buffer allocation.
Werner Lemberg 19b82cfb 2015-09-11T20:25:32 [base] Avoid crash while tracing `load_mac_face'. Reported in Savannah bug #45919. * src/base/ftobjs.c (load_mac_face): Honour FT_OPEN_MEMORY while tracing.
Werner Lemberg 78b01403 2015-08-25T07:23:01 [base] Improve kerning tracing and documentation. * src/base/ftobjs.c (FT_Get_Kerning): Emit tracing message if scaled-down kerning values differ.
Werner Lemberg 14d6b5d7 2015-08-13T15:22:17 [truetype] Introduce named instance access to GX fonts. For functions querying a face, bits 16-30 of the face index can hold the named instance index if we have a GX font. The indices start with value 1; value 0 indicates font access without GX variation data. * include/freetype/freetype.h (FT_FaceRec): Update documentation. * include/freetype/internal/sfnt.h: Ditto. * src/sfnt/sfobjs.c (sfnt_init_face) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Get number of named instances and do argument checks. (sfnt_load_face): Updated. * src/truetype/ttobjs.c (tt_face_init) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Use named instance, overwriting the style name. * src/base/ftobjs.c (open_face_from_buffer, open_face_PS_from_sfnt_stream): Updated. * src/bdf/bdfdrivr.c (BDF_Face_Init): Updated. * src/cff/cffload.c (cff_font_load): Updated. * src/cff/cffobjs.c (cff_face_init): Make function exit early for pure CFF fonts if `font_index < 0'. Updated. * src/cid/cidobjs.c (cid_face_init): Updated. * src/pcf/pcfdrivr.c (PCF_Face_Init): Updated. * src/pfr/pfrobjs.c (pfr_face_init): Updated. * src/type1/t1objs.c (T1_Face_Init): Updated. * src/type42/t42objs.c (T42_Face_Init): Updated. * src/winfonts/winfnt.c (fnt_face_get_dll_font, FNT_Face_Init): Updated. * docs/CHANGES: Updated.
Werner Lemberg eb22ef26 2015-08-04T06:50:04 Another left-shift bug (#45681). * src/base/ftobjs.c (IsMacBinary): Only accept positive values for `dlen'.
Alexei Podtelezhnikov 9de55e03 2015-04-10T23:45:11 [base] NULL.
Werner Lemberg eee7d8ba 2015-03-10T11:15:15 [base] Rename `FT_Bitmap_New' to `FT_Bitmap_Init'. * include/ftbitmap.h, src/base/ftbitmap.c: Implement it. Update all callers. * docs/CHANGES: Updated.
Werner Lemberg 82235d04 2015-02-16T19:35:16 Next round of minor compiler warning fixes. * include/internal/ftrfork.h (FT_RFork_Ref): Change `offset' member type to `FT_Long'. (CONST_FT_RFORK_RULE_ARRAY_BEGIN): Add `static' keyword. * include/internal/ftstream.h (FT_Stream_Pos): Return `FT_ULong'. * src/base/ftoutln.c, src/base/ftrfork.c, src/base/ftstream.c: Signedess fixes.
Werner Lemberg 3cfa4d12 2015-02-16T17:59:06 Various minor signedness fixes. * include/ftadvanc.h, include/internal/ftobjs.h, src/base/ftgloadr.c, src/base/ftobjs.c: Apply.
Werner Lemberg 79a5ac60 2015-01-18T07:30:04 * src/base/ftobjs.c (FT_New_Library): Fix compiler warning.
Werner Lemberg f57fc59e 2015-01-17T20:41:43 Run `src/tools/update-copyright'.
Behdad Esfahbod 603292d7 2015-01-14T18:35:56 [base] Don't initialize unused `driver->glyph_loader'. * src/base/ftobjs.c (Destroy_Driver): Don't call `FT_GlyphLoader_Done'. (FT_Add_Module): Don't call `FT_GlyphLoader_New'.
Behdad Esfahbod 51634253 2015-01-14T18:30:59 [base] Don't allocate `library->raster_pool' anymore. It's unused after the following commits: [raster] Allocate render pool for mono rasterizer on the stack. [raster] Remove 5-level gray AA mode from monochrome rasterizer. The value of FT_RENDER_POOL_SIZE still serves the purpose it used to serve, which is, to adjust the pool size. But the pool is now allocated on the stack on demand. * src/base/ftobjs.c (FT_New_Library, FT_Done_Library): Implement.
Behdad Esfahbod 6dfdaf4d 2015-01-14T18:21:13 [base] Do not reorder library->renderers upon use. Instead of keeping `library->renderers' in a MRU order, just leave it as-is. The MRU machinery wasn't thread-safe. With this patch, rasterizing glyphs from different faces from different threads doesn't fail choosing rasterizer (FT_Err_Cannot_Render_Glyph). Easiest to see that crash was to add a `printf' (or otherwise let thread yield in FT_Throw with debugging enabled). * src/base/ftobjs.c (FT_Render_Glyph_Internal), src/base/ftoutln.c (FT_Outline_Render): Don't call `FT_Set_Renderer'.
Werner Lemberg c9ca6ffc 2014-12-11T13:39:39 * src/base/ftobjs.c (FT_Get_Glyph_Name): Fix off-by-one check. Problem reported by Dennis Felsing <dennis@felsin9.de>.
Werner Lemberg 0098d550 2014-12-07T11:03:57 Uppercase all hex digits for orthogonality.
Werner Lemberg 3d167cbe 2014-11-27T05:19:41 * src/base/ftobjs.c (FT_Get_Glyph_Name): Fix compiler warning. Introdruced in previous change. Reported by Alexei.
Werner Lemberg f34f1925 2014-11-26T21:59:21 * src/*: Add checks for parameters of API functions where missing. `API functions' are functions tagged with `FT_EXPORT_DEF'. Besides trivial fixes, the following changes are included, too. * src/base/ftbdf.c (FT_Get_BDF_Charset_ID, FT_Get_BDF_Property): Set error code if no service is available. * src/base/ftinit.c (FT_Done_FreeType): Change return value for invalid `library' parameter to `Invalid_Library_Handle'. * src/base/ftobjs.c (FT_New_Size): Change return value for invalid `asize' parameter to `Invalid_Argument'. * src/base/ftoutln.c (FT_Outline_Copy): Change return value for invalid `source' and `target' parameters to `Invalid_Outline'. (FT_Outline_Done_Internal): Change return value for invalid `outline' parameter to `Invalid_Outline'.
suzuki toshiya cd4a5a26 2014-11-27T00:20:48 * src/base/ftobj.c (Mac_Read_POST_Resource): Additional overflow check in the summation of POST fragment lengths, suggested by Mateusz Jurczyk <mjurczyk@google.com>.
suzuki toshiya 1720e81e 2014-11-26T16:39:00 * src/base/ftobjs.c (Mac_Read_POST_Resource): Insert comments and fold too long tracing messages.
suzuki toshiya 45331679 2014-11-26T16:02:17 * src/base/ftobjs.c (Mac_Read_POST_Resource): Use unsigned long variables to read the lengths in POST fragments. Suggested by Mateusz Jurczyk <mjurczyk@google.com>.
suzuki toshiya 35252ae9 2014-11-26T15:52:23 Fix Savannah bug #43539. * src/base/ftobjs.c (Mac_Read_POST_Resource): Fix integer overflow by a broken POST table in resource-fork.
suzuki toshiya 240c94a1 2014-11-26T15:43:29 Fix Savannah bug #43538. * src/base/ftobjs.c (Mac_Read_POST_Resource): Fix integer overflow by a broken POST table in resource-fork.
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