kc3-lang/freetype/src/smooth
Branch :
Log
| Author | Commit | Date | CI | Message |
|---|---|---|---|---|
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32cb5390 | 2025-09-06 06:14:03 | Update all copyright notices. | |
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d6022b6d | 2025-07-26 07:00:51 | [smooth] Remove usage of setjmp and longjmp. To support WASM targets with slow or unsupported setjmp and longjmp, we eliminate these calls in favor of an error propagation model. When gray_set_cell is out of cells, it raises an exception which is later handled in gray_convert_glyph_inner. This is a less invasive alternative to !385. * src/smooth/ftgrays.c (gray_set_cell): Raise the overflow exception and redirect all work to `cell_null`. (gray_move,line,conic,cubic_to): Return the exception. (gray_convert_glyph, gray_convert_glyph_inner): Handle the exception. | |
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fc67794e | 2025-04-04 19:54:50 | Missing header wrappers. * include/freetype/config/integer-types.h, src/smooth/ftgrays.h: Add missing FT_BEGIN_HEADER and FT_END_HEADER. * src/smooth/ftgrays.c: Cosmetics. | |
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089ccb1b | 2024-10-13 12:14:43 | * src/smooth/ftgrays.c (gray_convert_glyph): Clear stack pointers. Fixes a dangling pointer warning, see #1299. | |
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2a7bb459 | 2024-06-20 20:49:56 | Use unsigned point and contour indexing in `FT_Outline`. This doubles the number or allowed points, see https://github.com/harfbuzz/harfbuzz/issues/4752 Although it is hardly practical to use more than 32767 points, other font engines seem to support it. * docs/CHANGES: Announce it. * include/freetype/ftimage.h (FT_Outline): Do it and update limits. * src/*: Update `FT_Outline` users. | |
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b3a6a20a | 2024-04-14 15:37:57 | [smooth] Switch to vertical bisections. With horizontal bisections, the smallest section is a whole single scanline. Almost horizontal lines or other complex scanlines can easily overflow the rendering pool. Switching to vertical bisections splits the scanlines and should rule out the overflows. Fixes #1269. * src/smooth/ftgrays.c (gray_convert_glyph): Bisect vertically. | |
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fff58f54 | 2024-04-14 15:12:31 | * src/smooth/ftgrays.c (gray_convert_glyph): Refactor for convenience. | |
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674d629b | 2024-04-14 13:06:01 | [smooth] Store persistent clipping box. * src/smooth/ftgrays.c (gray_TWorker, gray_raster_render): Add and set the new structure field. (gray_convert_glyph): Use it. | |
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47574f7e | 2024-01-27 11:11:22 | Update all copyright notices. | |
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57617782 | 2024-01-14 13:03:51 | [smooth] Remove SSE2. As a result of 7b308a29dd10, the regular 64-bit execution is now faster than SSE2. The rendering speed of script fonts at 64 ppem or larger is improved by about 3% without SSE2. See !314 for the testing results. * src/smooth/ftgrays.c (gray_render_conic)[FT_INT64]: Remove SSE2 code. | |
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322e580b | 2023-10-09 22:22:24 | * src/smooth/ftgrays.c: Move the sweep functions... ... out of the setjmp/longjmp scope for readability. | |
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7b308a29 | 2023-09-28 22:56:15 | * src/smooth/ftgrays.c (gray_render_conic) [SSE2]: Improve flow. | |
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a20de84e | 2023-08-12 11:47:41 | Fix warnings in tracing messages for 32bit compilation. Since we now require C99, use `%td` for `ptrdiff_t` and `%zu` for `size_t`. | |
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7c542d02 | 2023-07-21 21:31:28 | * src/smooth/ftgrays.c (FT_SSE2): Fix definition for VMS. | |
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c3876354 | 2023-05-09 07:15:53 | * src/smooth/ftgrays.c (FT_SSE2): Don't define for VMS. | |
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02283a6e | 2023-05-07 20:37:38 | [smooth] Signature fixes. | |
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34ed28d0 | 2023-02-20 16:33:45 | [base] Clean up contour indexing. * src/base/ftoutln.c (FT_Outline_Reverse, FT_Outline_EmboldenXY, FT_Outline_Get_Orientation): Set the first and last indexes together. (FT_Outline_Decompose): Ditto and check them more stringently. * src/smooth/ftgrays.c (FT_Outline_Decompose)[STANDALONE_]: Ditto. | |
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ac5babe8 | 2023-02-08 19:36:10 | Fix 'fall-through' warning messages. Modern compilers get more insistent on that... * include/freetype/internal/compiler-macros.h (FALL_THROUGH): Define. * src/*: Use it instead of `/* fall through */` comments. | |
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65f85237 | 2023-01-17 09:18:25 | Update all copyright notices. | |
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4fef1fce | 2022-06-10 11:34:56 | [smooth] Fix GCC LTO crashes on Windows. Fixes #1164 by using a volatile variable around `setjmp`. It is hard to say how this fixes crashes related to certain link-time optimizations. This does not decrease the rendering performance. * src/smooth/ftgrays.c (gray_convert_glyph_inner): Use volatile `error`. | |
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9acefc4f | 2022-06-09 10:51:07 | * src/smooth/ftgrays.c [FT_STATIC_RASTER]: Fix compilation. | |
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d0cfb4e1 | 2022-01-11 10:54:10 | Update all copyright notices. | |
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4eb6cb88 | 2021-12-25 09:23:58 | Fix warnings for CMake Unity builds. * src/cache/ftcbasic.c (FT_COMPONENT): Undefine macro before redefinition. * src/smooth/ftgrays.c (TRUNC, FRACT): Ditto. | |
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f5ce1824 | 2021-11-20 07:56:34 | [smooth] Fix stand-alone compilation. * src/smooth/ftgrays.c (FT_Trace_Enable, FT_Trace_Disable)[STANDALONE_]: Define. | |
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8c8f51c5 | 2021-11-19 21:50:22 | Avoid undefined left-shifts. We really have to use double casts to avoid issues with C's and C++'s signedness propagation rules in implicit casts. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=41178 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=41182 * include/freetype/config/public-macros.h (FT_STATIC_CAST, FT_REINTERPRET_CAST): Modify macro to take two arguments. Update all callers. (FT_STATIC_BYTE_CAST): New macro. * include/freetype/freetype.h (FT_ENC_TAG): Use `FT_STATIC_BYTE_CAST`. * include/freetype/ftimage.h (FT_IMAGE_TAG): Ditto. * include/freetype/fttypes.h (FT_MAKE_TAG): Ditto. Use `FT_Tag` for casting. * src/ftraster/ftmisc.h (FT_MAKE_TAG): Removed, no longer needed. (FT_STATIC_BYTE_CAST): New macro. * src/smooth/ftgrays.c (FT_STATIC_CAST): Replace with... (FT_STATIC_BYTE_CAST): ... this. | |
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9079c5d9 | 2021-11-13 08:53:19 | Provide C++ versions for public macros with casts. Many FreeType clients use C++. However `g++ -Wold-style-cast` warns for macros with C-style casts even for system header files; this also affects directories included with `-isystem`. While this could be seen as a problem with g++, the problem is more a philosophical one: Over the time, C and C++ diverged more and more, and some features of C are no longer the 'right' solution in C++. * include/freetype/config/public-macros.h (FT_STATIC_CAST, FT_REINTERPRET_CAST): New macros. * include/freetype/freetype.h (FT_ENC_TAG, FT_LOAD_TARGET_, FT_LOAD_TARGET_MODE): Use `FT_STATIC_CAST`. Correctly handle negative 'signed char' input. * include/freetype/ftimage.h (FT_IMAGE_TAG): Ditto. * include/freetype/fttypes.h (FT_MAKE_TAG, FT_BOOL): Ditto. * include/freetype/ftmodapi.h (FT_FACE_DRIVER_NAME): Use `FT_REINTERPRET_CAST`. * src/smooth/ftgrays.c (FT_STATIC_CAST)[STANDALONE_]: New macro. [!STANDALONE]: Include `FT_CONFIG_CONFIG_H`. Fixes #1116. | |
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238245cd | 2021-11-16 22:07:28 | Fix clang++ warnings. * src/*: Initialize some variables to NULL. | |
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d31bafcb | 2021-11-14 11:02:54 | Fix clang warnings. * src/gxvalid/gxvcmmn.h (GXV_SET_ERR_IF_PARANOID): Use 'do' block. * src/gxvalid/gxvmod.c (GXV_TABLE_LOAD, GXV_TABLE_VALIDATE): Ditto. * src/smooth/ftgrays.c (gray_convert_glyph): Add cast. * src/type1/t1gload.c (T1_Parse_Glyph_And_Get_Char_String): Remove cast. * src/type1/t1load.c (read_binay_data): Use `FT_ULong` for `size` parameter. (parse_subrs, parse_charstrings, parse_dict): Ditto; also add some casts. | |
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0f23ae2e | 2021-10-05 16:28:40 | * src/smooth/ftgrays.c (FT_DIV_MOD): Limit the ARM workaround. | |
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61903609 | 2021-09-20 22:18:29 | Minor. | |
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7f8f0c1c | 2021-09-02 23:30:31 | [smooth, raster, sdf] Clean up initialization calls. * src/raster/ftraster.c (ft_black_init): Removed. (ft_black_new): Clean up. * src/sdf/ftbsdf.c (bsdf_raster_new): Ditto. * src/sdf/ftsdf.c (sdf_raster_new): Ditto. * src/smooth/ftgrays.c (gray_raster_new): Ditto. | |
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b6c11d49 | 2021-08-30 07:09:53 | [smooth] Reduce shift in multiply-shift optimization. * src/smooth/ftgrays.c (FT_UDIVPREP, FT_UDIV): Reduce shift. Smaller shifts that keep the division operands of FT_UDIVPREP within 32 bits result in slightly faster divisions, which is noticeable in the overall performance. The loss of precision is tolerable until the divisors (the components dx and dy) approach 32 - PIXEL_BITS. With PIXEL_BITS = 8, this corresponds to 65,000 pixels or the bitmap size that we refuse to render anyway. Using `ftbench -p -s60 -t5 -bc timesi.ttf`, Before: 8.52 us/op After: 8.32 us/op | |
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a842a098 | 2021-08-26 16:12:22 | [smooth] Detect SSE2 with MSVC for x86 MSVC does not set `__SSE2__`. Instead one must check whether `_M_IX86_FP` is defined and greater than or equal to 2. * src/smooth/ftgrays.c (FT_SSE2): New macro. Use it where appropriate. | |
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3785393d | 2021-08-26 15:31:11 | Expand comment (cont'd). | |
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686e2a5e | 2021-08-25 23:18:43 | Expand comment. | |
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f7f9cb0d | 2021-08-24 15:29:06 | * src/smooth/ftgrays.c (gray_render_conic): Refactor redundancy. | |
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d62d583d | 2021-08-20 23:40:49 | [smooth] Clean up the null cell usage. Put the null cell at the end of the pool and store it explicitly so that we can use it as both the limit and the dumpster. * src/smooth/ftgrays.c (gray_TWorker): Store the last `cell_null` and remove unnecesary fields. (NULL_CELL_PTR, CELL_IS_NULL): Remove in favor of explicit `cell_null`. (gray_dump_cells, gray_set_cell, gray_sweep{,_direct}): Update callers. (gray_convert_glyph_inner): Trace remaining cells (oh well). (gray_convert_glyph): Set up `cell_null` and slightly improve the pool management. | |
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de3b5c20 | 2021-08-20 13:51:40 | [smooth] Fortify 64-bit algorithm. * src/smooth/ftgrays.c (FT_UDIVPREP, FT_UDIV): s/long/FT_Int64/ and s/unsigned long/FT_UInt64/. (gray_render_line): Adjust a critical variable type. | |
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85703839 | 2021-08-18 23:05:51 | Use FT_INT64 instead of FT_LONG64. * include/freetype/config/integer-types.h: Remove synonymous FT_LONG64. * include/freetype/internal/ftcalc.h: s/FT_LONG64/FT_INT64/. * src/base/ftcalc.c: Ditto. * src/base/fttrigon.c: Ditto. * src/smooth/ftgrays.c: Ditto. | |
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18fc64e6 | 2021-08-07 17:11:57 | [smooth] Avoid integer overflow. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36243 * src/smooth/ftgrays.c(ADD_LONG, SUB_LONG, MUL_LONG, NEG_LONG) [STANDALONE_]: Removed, unused. (ADD_INT) [STANDALONE_]: New macro. (FT_INTEGRATE): Use ADD_INT. | |
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6be8bfe4 | 2021-08-06 08:31:22 | [smooth] Fix left shifts of negative numbers. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36241 * src/smooth/ftgrays.c (LEFT_SHIFT): New macro. (gray_render_conic) [BEZIER_USE_DDA]: Use it. | |
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c2fa51d9 | 2021-07-24 20:32:16 | Fix some `cppcheck` warnings. * src/bzip2/ftbzip2.c (ft_bzip2_file_skip_output), src/gzip/ftgzip.c (ft_gzip_file_skip_output): Reduce scope of `delta`. * src/psaux/psintrp.c, src/psaux/psintrp.h (cf2_interpT2CharString): Add `const` to `buf` parameter. * src/raster/ftraster.c (DelOld): Add `const` to `profile` parameter. (Vertical_Sweep_Span): Reduce scope of `target`. (FT_Outline_Get_CBox): Reduce scope of `xMin`, `xMax`, `yMin`, `yMax`. * src/smooth/ftgrays.c (gray_render_conic): Reduce scope of `split`. (gray_sweep, gray_sweep_direct): Reduce scope of `area`. * src/tools/apinames.c (names_dump) <OUTPUT_WATCOM_LBC>: Reduce scope of `temp`. | |
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357b353c | 2021-07-16 11:12:13 | * src/smooth/ftgrays.c: Fix compilation if `FT_LONG64` is undefined. The code assumed that if `__SSE2__` is defined, then 64-bit integer types are available. This is not the case apparently for certain multilib compiler targets like 'x86_32.x86' used by Gentoo. This patch fixes the issue by disabling the special code path when 64-bit integer types are not available. Fixes #1071. | |
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552fc97f | 2021-07-16 07:49:20 | [smooth] Minor fixes. * src/smooth/ftgrays.c (gray_render_conic): Move variable and structure declarations to beginning of function. Inspite of C99 compliance we still do this for the sake of backward compatibility. This also avoids a shadowing declaration of `count`. (gray_convert_glyph_inner): Fix typo. | |
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93771d61 | 2021-07-16 07:40:56 | Formatting and ChangeLog additions for previous commits. | |
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c37c0873 | 2021-07-15 11:33:16 | Guard inclusion of emmintrin.h Guard inclusion of emmintrin.h with "#ifdef __SSE2__". The gcc version of this header, xmmintrin.h, and mmintrin.h check that the appropriate defines are set before defining anything (are internally guarded). However the clang versions of these includes are not internally guarded. As a result of this, externally guard the inclusion of these headers. | |
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56cc2ad4 | 2021-06-19 10:26:53 | [smooth] Implement Bezier quadratic arc flattenning with DDA Benchmarking shows that this provides a very slighty performance boost when rendering fonts with lots of quadratic bezier arcs, compared to the recursive arc splitting, but only when SSE2 is available, or on 64-bit CPUs. On a 2017 Core i5-7300U CPU on Linux/x86_64: ./ftbench -p -s10 -t5 -cb .../DroidSansFallbackFull.ttf Before: 4.033 us/op (best of 5 runs for all numbers) After: 3.876 us/op ./ftbench -p -s60 -t5 -cb .../DroidSansFallbackFull.ttf Before: 13.467 us/op After: 13.385 us/op | |
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86b9c934 | 2021-06-19 11:18:40 | [smooth] Minor speedup to smooth rasterizer This speeds up the smooth rasterizer by avoiding a conditional branches in the hot path. Namely: - Define a fixed "null cell" which will be pointed to whenever the current cell is outside of the current target region. This avoids a "ras.cell != NULL" check in the FT_INTEGRATE() macro. - Also use the null cell as a sentinel at the end of all ycells[] linked-lists, by setting its x coordinate to INT_MAX. This avoids a 'if (!cell)' check in gray_set_cell() as well. - Slightly change the worker struct fields to perform a little less operations during rendering. Example results (on a 2013 Corei5-3337U CPU) out/ftbench -p -s10 -t5 -bc /usr/share/fonts/truetype/droid/DroidSansFallbackFull.ttf Before: 5.472 us/op After: 5.275 us/op out/ftbench -p -s60 -t5 -bc /usr/share/fonts/truetype/droid/DroidSansFallbackFull.ttf Before: 17.988 us/op After: 17.389 us/op | |
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1e0cef9e | 2021-06-24 00:19:50 | [smooth, raster] Fix up and align error codes. FT_Render_Glyph picked up FAILURE or 1 returned from the raster function, which became a confusing error code. Instead, return Raster_Overflow in the unlikely event that banding does not help or another meaningful error. * src/smooth/ftgrays.c (gray_convert_glyph_inner, gray_convert_glyph): Use Raster_Overflow when the rendering pool is exhausted and return it if banding does not help. (gray_raster_render): Use Smooth_Err_Ok. * src/raster/ftraster.c (Render_Single_Pass): Return Raster_Overflow if banding does not help or another error code. | |
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d8ac180c | 2021-06-23 23:32:02 | [smooth, raster] Remove synonymous error macros. * src/smooth/ftgays.c [STANDALONE_]: s/ErrRaster_/Smooth_Err_/. (gray_convert_glyph_inner): Updated accordingly. * src/raster/ftraster.c [STANDALONE_]: Do not abbreviate error macros. (New_Profile, End_Profile, Insert_Y_Turn, Line_Up, Bezier_Up, Decompose_Curve, Draw_Sweep, Render_Single_Pass, ft_black_render): Updated accordingly. | |
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2d3f5dd2 | 2021-05-12 17:24:35 | * src/smooth/ftgrays.c (FT_MAX_GRAY_SPANS): Increase from 10 to 16. Ten was barely enough for two slanted stems. Sixteen can actually fit a bit more complicated scanlines. | |
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c653b8d2 | 2021-05-12 16:17:21 | * src/smooth/ftgrays.c (FT_GRAY_SET): Adjust for better code. | |
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8f43d324 | 2021-05-12 00:04:59 | [smooth] Faster bitmap sweeping. Selecting the fill rule or checking the direct mode each time we call `gray_hline' is sub-optimal. This effectively splits the direct mode into a separate code path while inlining `gray_hline' and saving 5-7% of rendering time. * src/smooth/ftgrays.c (gray_hline): Eliminated in favor of... (FT_FILL_RULE, FT_GRAY_SET): ... these new macros... (gray_sweep): ... inlined here. (gray_sweep_direct): New function that handles the direct span buffer. (gray_TWorker): Remove the span buffer. (gray_raster_render, gray_convert_glyph): Updated. | |
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b0702645 | 2021-05-10 22:06:01 | * src/smooth/ftgrays.c (gray_hline): Simplify even-odd computations. It is too bad the even-odd rule is not used much. | |
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fb9bf2ef | 2021-03-15 22:33:17 | * src/smooth/ftgrays.c (gray_set_cell): Refactor to fix VC++ warning. | |
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80bda804 | 2021-03-11 22:40:19 | [smooth] Reduce copying during integration phase. We now record `cover' and `area' directly into the linked list. This makes rendering faster by 10% or even more at larger sizes. * src/smooth/ftgrays.c (FT_INTEGRATE): Write directly. (gray_TWorker): Add direct cell reference and remove unused fields. (gray_set_cell): Consolidate the linked list management and pointers. (gray_convert_glyph, gray_convert_glyph_inner): Updated. | |
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d5b7de55 | 2021-03-11 22:08:45 | * src/smooth/ftgrays.c (FT_INTEGRATE): New convenience macro. (gray_render_line, gray_render_scanline): Use it. | |
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85168499 | 2021-03-09 22:14:44 | * src/smooth/ftgrays.c (gray_render_line): Rearrange conditionals. These produce faster or more optimizable code. | |
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b6e8a712 | 2021-01-17 07:18:48 | Update all copyright notices. | |
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16ee2a22 | 2020-08-28 23:08:42 | [smooth] Don't set target in direct mode. * src/smooth/ftsmooth.c (ft_smooth_raster_overlap): Remove assignment. (ft_smooth_raster_lcd) [!FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Ditto. | |
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6730854c | 2020-08-25 23:16:27 | * src/smooth/ftsmooth.c (ft_smooth_raster_overlap): Limit width. Segmentation fault reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24729 | |
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53be1753 | 2020-07-28 07:33:40 | Fix `-Wformat' compiler warnings. * src/*: Fix format specifiers. * builds/unix/ftsystem.c (FT_Stream_Open): Ditto. | |
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96fb73ef | 2020-07-07 16:58:14 | Fix clang warnings. * include/freetype/internal/autohint.h (FT_DECLARE_AUTOHINTER_INTERFACE): New macro. * src/autofit/afmodule.h: Use it to declare `af_autofitter_interface'. * include/freetype/internal/ftobjs.h (FT_DECLARE_GLYPH): New macro. * src/base/ftbase.h: Use it to declare `ft_bitmap_glyph_class' and `ft_outline_glyph_class'. * src/base/ftglyph.c: Include `ftbase.h'. * src/cff/cffparse.c (cff_parser_run): Fix type of `t2_size'. * src/pcf/pcfdrivr.c (pcf_cmap_char_next): Fix type of `result'. * src/psaux/psauxmod.c (psaux_module_class): Use `FT_DEFINE_MODULE'. * src/psaux/psauxmod.h: Declare `afm_parser_funcs', `t1_cmap_classes', `cff_decoder_funcs', and `psaux_module_class'. * src/pshinter/pshmod.c: Include `pshmod.h'. * src/sfnt/sfwoff2.c (ROUND4, WRITE_SHORT): Fix implicit sign conversion. (compute_ULong_sum): Fix return type. Fix implicit sign conversion. (store_points): Fix type of `last_flag', `repeat_count', and `flag'. Use casts to avoid warnings. (reconstruct_glyf): Fix implicit sign conversion. Use cast to avoid warning. (get_x_mins): Fix implicit sign conversion. * src/sfnt/ttcmap.c: Undef `TTCMAPCITEM'. * src/sfnt/ttcmap.h: Define `TTCMAPCITEM' and include `ttcmapc.h' to declare cmap classes. * src/smooth/ftsmooth.c (ft_smooth_overlap_spans): Use cast. * src/truetype/ttinterp.c (Ins_MIAP): Fix typo. | |
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3bb512bc | 2020-07-03 22:29:34 | [smooth] Introduce direct oversampling for overlaps. This implements oversampling to metigate artifacts in pixels partially covered by overlapping contours. It turns out that the 4x4 oversampling is sufficient but, at least, quadruples the rendering time. The outline has to set FT_OUTLINE_OVERLAP to use this method. * include/freetype/ftimage.h (FT_OUTLINE_OVERLAP): New flag. * src/smooth/ftsmooth.c (ft_smooth_render): Check it to... (ft_smooth_raster_overlap): ... inflate outline and set up direct rendering for oversampling with... (ft_smooth_overlap_spans): ... new span function that integrates them. | |
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19d39f43 | 2020-07-03 09:17:22 | [smooth] Use direct rendering mode in Harmony. Instead of rendering 3 bitmaps side by side and reshuffling, we use direct rendering to deliver the bitmaps on each third byte. * src/smooth/ftsmooth.c (ft_smooth_raster_lcd) [!FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Set up direct mode with... (ft_smooth_lcd_spans): ... new span function. | |
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2d67511a | 2020-07-03 09:02:09 | [smooth] Separate LCD paths from gray rendering. This makes `ft_smooth_render' a lot smaller and easier to follow. It also cleanly separates Harmony and ClearType-style LCD rendering algorithms. Now I only wish to move LCD filtering and geometry from FT_Library to FT_Renderer. * src/smooth/ftsmooth.c (ft_smooth_render): Move LCD code from here... (ft_smooth_raster_lcd, ft_smooth_raster_lcdv): ... to here. [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Reorganize #ifdef's. | |
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16586859 | 2020-06-13 21:15:45 | Remove redundant inclusion of `ft2build.h'. * */*: Remove `#include <ft2build.h>' where possible. * include/freetype/freetype.h: Remove cpp error about missing inclusion of `ft2build.h'. | |
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e1339133 | 2020-06-08 13:31:55 | Make macros for header file names optional. We no longer have to take care of the 8.3 file name limit; this allows us (a) to introduce longer, meaningful file names, and (b) to avoid macro names in `#include' lines altogether since some compilers (most notably Visual C++) doesn't support this properly. */*: Replace #include FOO_H with #include <freetype/foo.h> or something similar. Also update the documentation. | |
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4eee1340 | 2020-05-18 09:16:12 | Remove Jamfile files from the tree. These have not been used in a very, very long time, so better remove them. A corresponding patch will be submitted to the `freetype2-demos' repository. * src/Jamfile, src/*/Jamfile, Jamrules: Delete. | |
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3f70e6d2 | 2020-05-12 00:38:46 | [smooth] Turn on LCD filtering during FreeType initialization. * src/smooth/ftsmooth.c (ft_smooth_init): Enable LCD filtering. * include/freetype/ftlcdfil.h: Document it, remove patent warnings. * include/freetype/freetype.h (FT_Render_Mode): Updated. * include/freetype/config/ftoption.h, devel/ftoption.h [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Do not mention patents. | |
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652f8863 | 2020-05-11 23:30:37 | [smooth] Stop using dedicated LCD modules and classes. The LCD modules were never truly independent. They mostly served as a way to disable patented LCD rendering, which is no longer necessary. The `smooth' module now handles LCD modes as well. * src/smooth/ftsmooth.c (ft_smooth_lcd_renderer_class. ft_smooth_lcdv_renderer_class): Deleted. (ft_render_smooth): Reworked from `ft_render_smooth_generic'. * src/smooth/ftsmooth.h: Remove dedicated LCD classes. * src/smooth/module.mk: Remove dedicated LCD modules. * include/freetype/config/ftmodule.h: Ditto. * builds/amiga/include/config/ftmodule.h: Ditto. * include/freetype/ftmodapi.h: Do not mention LCD modules. | |
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e5038be7 | 2020-01-19 17:05:19 | Update all copyright notices. | |
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2c9a2d58 | 2019-12-13 23:56:25 | Another bunch of UBSan warnings on adding offsets to nullptr. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19427 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19433 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19441 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19451 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19452 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19457 * src/autofit/aflatin.c (af_latin_hints_compute_segments, af_latin_hints_compute_edges): Use `FT_OFFSET'. * src/base/ftstream.c (FT_Stream_EnterFrame): Use `FT_OFFSET'. * src/psaux/cffdecode.c (cff_decoder_parse_charstrings): Exit early if there is no charstring. * src/psaux/psobjs.c (t1_decrypt): Use `FT_OFFSET'. * src/smooth/ftsmooth.c (ft_smooth_render_generic): Exit early for zero bitmap dimensions. | |
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11d4ce23 | 2019-12-09 12:40:42 | Fix more UBSan warnings on adding offset to nullptr (#57384) * src/smooth/ftsmooth.c (ft_smooth_render_generic), src/psaux/psobjs.c (ps_table_add): Use `FT_OFFSET'. | |
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e7ac9288 | 2019-06-13 00:17:36 | [smooth] Restore the span buffering for direct mode only. The buffer size FT_MAX_GRAY_SPANS is set to 10 spans, which should be enough to cover the entire scanline for simple glyphs in most cases: each slightly slanted edge needs up to two spans, plus a filling span in-between. This is not new, we used to do it before cb4388783cecc. * src/smooth/ftgrays.c (gray_TWorker): Add `spans' and `num_spans'. (gray_hline, gray_sweep): Implement the span buffering. (gray_raster_render): Use negative `num_spans' to avoid the direct mode. | |
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bdac4cbe | 2019-06-12 21:58:35 | Rendering considerations. | |
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9159128a | 2019-05-29 07:45:54 | Silence gcc 7's fall-through warnings in `switch' blocks. Instead of an intentionally missing `break' statement there must be a comment line containing `fall through' (and nothing else) right before the next `case' statement. See https://stackoverflow.com/questions/45129741/gcc-7-wimplicit-fallthrough-warnings-and-portable-way-to-clear-them | |
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141e3173 | 2019-05-20 23:09:59 | Rendering considerations. | |
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bc3b5281 | 2019-05-08 22:08:40 | [smooth] Faster fractions. * src/smooth/ftgrays.c (SUBPIXELS): Replace with... (FRACT): A fractional coordinate macro to use in... (gray_render_line, gray_render_scanline): ... here. | |
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81725773 | 2019-05-04 08:11:20 | * src/smooth/ftgrays.c (gray_render_line): Small shortcut. | |
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300458eb | 2019-05-03 23:16:42 | Miscellaneous macro updates. * src/base/ftoutln.c (SCALED): Updated. * src/smooth/ftgrays.c (SCALED): Ditto. (FLOOR, ROUND, CEILING): Removed. * src/psaux/psfixed.h (cf2_fracToFixed): Updated. | |
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65f9516b | 2019-05-02 23:06:55 | Tweak LCD filtering. * src/base/ftlcdfil.c (ft_lcd_filter_fir, _ft_lcd_filter_legacy): Choose direction from bitmap's pixel_mode. * include/freetype/internal/ftobjs.c (FT_Bitmap_LcdFilterFunc): Updated. * src/smooth/ftsmooth.c (ft_smooth_render_generic): Updated. | |
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2ea511ee | 2019-04-29 22:49:15 | [smooth] Simplify cubic Bézier flattening. The previous implementation is correct but it is too complex. The revised algorithm is based on the fact that each split moves the control points closer to the trisection points on the chord. The corresponding distances are good surrogates for the curve deviation from the straight line. This cubic flattening algorithm is somewhat similar to the conic algorithm based the distance from the control point to the middle of the chord. The cubic distances, however, decrease less predictably but are easy enough to calculate on each step. * src/smooth/ftgrays.c (gray_render_cubic): Replace the split condition. | |
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80475ede | 2019-04-26 21:53:00 | [smooth] Bithacks and cosmetics. * src/smooth/ftgrays.c (gray_record_cell, gray_set_cell, gray_hline, gray_render_conic, gray_convert_glyph_inner): Updated. | |
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7a81b63a | 2019-04-25 22:06:33 | Optimize Bézier bisections. * src/raster/ftraster.c (Split_Conic, Split_Cubic): Use shifts and refactor. * src/smooth/ftgrays.c (gray_split_conic, gray_split_cubic): Ditto. * src/base/ftstroke.c (ft_conic_split, ft_cubic_split): Ditto. * src/base/ftbbox.c (cubic_peak): Use shifts. | |
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1f271751 | 2019-04-11 23:48:21 | [smooth] Fix segfault in direct mode (#56092). * src/base/ftoutln.c (FT_Outline_Render): Set missing clip_box for direct mode. * src/smooth/ftgrays.c (gray_raster_render): Use it. | |
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75859970 | 2019-02-23 10:07:09 | Update all copyright notices. | |
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f686ad46 | 2019-01-22 20:31:44 | Update copyright years. | |
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afa043de | 2018-12-25 22:44:05 | Fix links (mostly http -> https). | |
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78db9eec | 2018-11-10 15:39:19 | [smooth] Placeholder only for library-enabled LCD filtering. * src/smooth/ftsmooth.c (ft_smooth_init): Add disabled `FT_Library_SetLcdFilter' call. | |
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9817571c | 2018-10-03 08:04:55 | [ftgrays] Fix typo in stand-alone mode (#54771). * src/smooth/ftgrays.c (FT_THROW) [STANDALONE_ && FT_DEBUG_LEVEL_TRACE]: Fix call to `FT_ERR_CAT'. | |
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1dacbd89 | 2018-08-30 23:28:30 | 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. | |
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a3e842f9 | 2018-08-22 09:55:38 | Minor formatting and documentation fixes. | |
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a0dd16fb | 2018-08-15 18:13:17 | 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. | |
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e16bfbec | 2018-08-09 22:18:00 | [raster, smooth] Reinstate bitmap size limits. This again moves outline and bitmap size checks one level up. * src/base/ftoutln.c (FT_Outline_Render): Explicitly reject enormous outlines. * src/raster/ftrend1.c (ft_raster1_render): Reject enormous bitmaps and, therefore, outlines that require them. * src/smooth/ftsmooth.c (ft_smooth_render_generic): Ditto. * src/raster/ftraster.c (ft_black_render): Remove outline size checks. * src/smooth/ftgrays.c (gray_raster_render): Ditto. [STANDALONE]: Remove `FT_Outline_Get_CBox' copy. | |
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f60c98fe | 2018-08-08 18:15:53 | [smooth] Improve tracing. * src/smooth/ftgrays.c (gray_convert_glyph_inner): Only use tracing if called the first time. (gray_convert_glyph): Updated. | |
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2c3e895c | 2018-07-28 22:00:59 | [smooth] Fix Harmony memory management. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9501 * src/smooth/ftgrays.c (ft_smooth_render_generic): Restore buffer after each rendering in case of failure. | |
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ca4e707a | 2018-06-06 08:18:23 | [smooth, raster] Limit bitmap size (#54019). * src/raster/ftraster.c [STANDALONE] (FT_Outline_Get_CBox): Add function. [!STANDALONE]: Include FT_OUTLINE_H. (ft_black_render): Compute CBox and reject glyphs larger than 0xFFFF x 0xFFFF. * src/smooth/ftgrays.c (gray_raster_render): Reject glyphs larger than 0xFFFF x 0xFFFF. | |
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80ac3645 | 2018-06-03 18:31:58 | * src/smooth/ftgrays.c (gray_convert_glyph): Remove unused variables. | |
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9ac9060d | 2018-06-03 09:01:17 | [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. |