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

src/base/ftobjs.c

Log

Author Commit Date CI Message
Antony Lee 3ad1c93a 2019-04-06T06:37:42 Make `glyph_name' parameter to `FT_Get_Name_Index' a `const'. * include/freetype/freetype.h (FT_Get_Name_Index), include/freetype/internal/ftobjs.h (FT_Face_GetGlyphNameIndexFunc), include/freetype/internal/services/svgldict.h (FT_GlyphDict_NameIndexFunc), src/base/ftobjs.c (FT_Get_Name_Index), src/cff/cffdrivr.c (cff_get_name_index), src/sfnt/sfdriver.c (sfnt_get_name_index), src/type1/t1driver.c (t1_get_name_index), src/type42/t42drivr.c (t42_get_name_index): Add `const' to second argument.
Werner Lemberg 75859970 2019-02-23T10:07:09 Update all copyright notices.
Werner Lemberg f686ad46 2019-01-22T20:31:44 Update copyright years.
Alexei Podtelezhnikov 4500c701 2018-09-26T22:04:50 Typo.
Werner Lemberg a9af6914 2018-09-25T09:10:09 Fix handing of `FT_Bool'. Before this commit we had code like (FT_Bool)( globals->glyph_styles[gindex] & 0x8000) Since `FT_Bool' is defined to be an `unsigned char', the code evaluated to something like (unsigned char)( 0x8532 & 0x8000) which in turn expanded to (unsigned char)( 0x8000) and finally yielded 0x00 – i.e., false – not as expected. Problem reported and analyzed by Tony Smith <tony.smith@macro4.com>. * include/freetype/fttypes.h (FT_BOOL): Add a comparison against zero so that we always have a Boolean expression. */*: Replace castings to `FT_Bool' with calls to `FT_BOOL' where possible.
Alexei Podtelezhnikov 793a9ff9 2018-09-22T14:38:00 * src/base/ftobjs.c (ft_glyphslot_reset_bimap): Another tweak. This one should be clearer. When the rounded monochrome bbox collapses we add a pixel that covers most if not all original cbox.
Alexei Podtelezhnikov f26d5775 2018-09-21T20:34:58 * src/base/ftobjs.c (ft_glyphslot_reset_bimap): Further tweak.
Ben Wagner 335528e1 2018-09-21T11:26:37 Improve auto-hinter handling of bitmap fonts (#54681). For bitmap fonts, `FT_Load_Glyph' should either return an error or not set the format to `FT_GLYPH_FORMAT_OUTLINE'. However, in this case `FT_Load_Glyph' calls into the auto-hinter which calls back into `FT_Load_Glyph' with `FT_LOAD_NO_SCALE' in the flags, which marks the glyph as `FT_GLYPH_FORMAT_OUTLINE' with an empty path (even though it doesn't have any path). It appears that the auto-hinter should not be called when the face doesn't have outlines. The current test for using the auto-hinter in `FT_Load_Glyph' checks if the driver supports scalable outlines, but not if the face supports scalable outlines. * src/base/ftobjs.c (FT_Load_Glyph): Directly check whether we have scalable outlines.
Werner Lemberg 493aa68f 2018-09-21T08:32:22 [base] Some comments.
Alexei Podtelezhnikov 2a9850c4 2018-09-20T22:40:32 * src/base/ftobjs.c (ft_glyphslot_reset_bimap): Tiny rounding tweak. This adds pixels in case a contour goes through the center and they need to be turned on in the b/w rasterizer.
Alexei Podtelezhnikov 809d5125 2018-08-31T22:49:19 * src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Check glyph format.
Werner Lemberg 83525bdd 2018-08-31T07:37:15 Minor comments.
Alexei Podtelezhnikov 1dacbd89 2018-08-30T23:28:30 Consolidate bitmap presetting and size assessment. * include/freetype/internal/ftobjs.h (ft_glyphslot_preset_bitmap): Change return type. * src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Return the bitmap size assessment. * src/raster/ftrend1.c (ft_raster1_render): Use it to refuse the rendering of enourmous or far-fetched outlines. * src/smooth/ftsmooth.c (ft_smooth_render_generic): Ditto.
Alexei Podtelezhnikov ca980b4c 2018-08-30T21:51:18 * src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Correct mono.
Werner Lemberg 21c2b390 2018-08-30T09:52:08 Minor.
Alexei Podtelezhnikov 5d93a3fc 2018-08-30T01:12:22 [base] Overflow-resistant bitmap presetting. * src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Implement it.
Werner Lemberg a3e842f9 2018-08-22T09:55:38 Minor formatting and documentation fixes.
Werner Lemberg a0dd16fb 2018-08-15T18:13:17 Don't use `trace_' prefix for FT_COMPONENT arguments. * include/freetype/internal/ftdebug.h (FT_TRACE_COMP, FT_TRACE_COMP_): New auxiliary macros to add `trace_' prefix. (FT_TRACE): Use `FT_TRACE_COMP'. */* (FT_COMPONENT): Updated.
Werner Lemberg 1aa73fa8 2018-08-10T05:41:32 * src/base/ftobjs.c (FT_Render_Glyph_Internal): Improve tracing.
Werner Lemberg 2e3dec55 2018-08-08T13:51:18 Debugging improvements. * src/base/ftobjs.c (pixel_modes): Move this array to top level from ... (FT_Load_Glyph): ... here. (FT_Render_Glyph_Internal): Use `width' x `height' in trace message. Use `pixel_modes'.
Werner Lemberg 8f09eb5c 2018-07-17T21:45:24 Allow FT_ENCODING_NONE for `FT_Select_Charmap'. This is a valid encoding tag for BDF, PCF, and Windows FNT, and there is no reason to disallow it for these formats. * src/base/ftobjs.c (FT_Select_Charmap): Implement it.
Werner Lemberg 4e3b2473 2018-07-02T11:41:44 Make `FT_Get_Color_Glyph_Layer' return FT_Bool. * include/freetype/freetype.h, src/base/ftobjs.c (FT_Get_Color_Glyph_Layer, FT_Render_Glyph_Internal): Updated. * include/freetype/internal/sfnt.h (TT_Get_Colr_Layer_Func), src/sfnt/ttcolr.h, src/sfnt/ttcolr.c (tt_face_get_colr_layer): Updated.
Werner Lemberg f6ccb524 2018-07-01T12:31:57 * src/base/ftobjs.c (FT_Get_Color_Glyph_Layer): Guard SFNT function. Reported by Behdad.
Alexei Podtelezhnikov 4f11209f 2018-06-28T21:31:35 * src/base/ftobjs.c (FT_Set_Charmap): Robustify.
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.
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