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1040 commits

Author SHA1 Message Date
suzuki toshiya
18a8f0d994 Fix Savannah bug #43540. 
* src/base/ftmac.c (parse_fond): Prevent a buffer overrun
caused by a font including too many (> 63) strings to store
names[] table.
 2014-11-26 17:56:30 +09:00
suzuki toshiya
453316792f * 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>.
 2014-11-26 17:56:09 +09:00
suzuki toshiya
35252ae9aa Fix Savannah bug #43539. 
* src/base/ftobjs.c (Mac_Read_POST_Resource): Fix integer overflow
by a broken POST table in resource-fork.
 2014-11-26 17:55:55 +09:00
suzuki toshiya
240c94a185 Fix Savannah bug #43538. 
* src/base/ftobjs.c (Mac_Read_POST_Resource): Fix integer overflow
by a broken POST table in resource-fork.
 2014-11-26 17:55:41 +09:00
suzuki toshiya
5aff85301b * src/base/ftobjs.c (Mac_Read_POST_Resource): Avoid memory leak 
by a broken POST table in resource-fork.  Return after freeing
the buffered POST table when it is found to be broken.
 2014-11-26 17:55:30 +09:00
Werner Lemberg
02b8e7e8d7 */*: s/Invalid_Argument/Invalid_Size_Handle/ where appropriate. 2014-11-25 11:31:51 +01:00
Werner Lemberg
0d4aa23e7c */*: s/Invalid_Argument/Invalid_Stream_Handle/ where appropriate. 2014-11-25 11:26:14 +01:00
Werner Lemberg
f4f9e68800 */*: s/Invalid_Argument/Invalid_Library_Handle/ where appropriate. 2014-11-25 11:11:55 +01:00
Werner Lemberg
04c2aa18bf */*: s/Invalid_Argument/Invalid_Outline/ where appropriate. 2014-11-25 10:22:12 +01:00
Werner Lemberg
04edbbda3c */*: s/Invalid_Argument/Invalid_Face_Handle/ where appropriate. 2014-11-25 10:21:13 +01:00
Werner Lemberg
6689a009ce [Savannah bug #43682] Properly handle missing return errors. 
The functions in this patch *do* return non-trivial errors that must
be taken care of.

* src/autofit/afloader.c (af_loader_load_g), src/base/ftobjs.c
(FT_Render_Glyph_Internal), src/base/ftoutln.c (FT_Outline_Render),
src/cff/cffgload.c (cff_decoder_parse_charstrings) <cff_op_endchar>,
src/psaux/psobjs.c (ps_parser_load_field_table), src/psaux/t1decode
(t1_decoder_parse_charstrings) <op_endchar>, src/truetype/ttgload.c
(load_truetype_glyph <subglyph loop>, tt_loader_init,
TT_Load_Glyph), src/truetype/ttgxvar.c (TT_Set_MM_Blend),
src/truetype/ttobjs.c (tt_size_run_fpgm, tt_size_run_prep): Do it.
 2014-11-25 08:53:09 +01:00
Werner Lemberg
b24e8ba28a [Savannah bug #43682] Add/remove `void' casts to some functions. 
We use a cast to indicate that we intentionally ignore a function's
return value.  However, this doesn't apply to API functions where
errors can only happen for trivially invalid input.

* src/base/ftstroke.c (FT_Glyph_Stroke, FT_Glyph_StrokeBorder),
src/base/ftsynth.c (FT_GlyphSlot_Embolden), src/cff/cffgload.c
(cff_slot_load), src/pfr/pfrdrivr.c (pfr_get_kerning),
src/type1/t1load.c (parse_encoding), src/type42/t42parse.c
(t42_parse_encoding): Do it.
 2014-11-25 08:30:49 +01:00
Werner Lemberg
6889f7b72d Remove all code related to FT_MAX_CHARMAP_CACHEABLE. 
This is no longer used.

* src/base/ftobjs.c, src/cache/ftccmap.c, src/cff/cffobjs.c,
src/sfnt/ttcmap.c: Do it.
 2014-11-24 17:16:08 +01:00
Werner Lemberg
23c093fc38 Minor. 2014-11-21 08:41:39 +01:00
Werner Lemberg
9154dab815 [ftlcdfil] Obey flow direction. 
* src/base/ftlcdfil.c (_ft_lcd_filter_fir, _ft_lcd_filter_legacy):
Handle `up' flow.
 2014-11-21 08:03:51 +01:00
Werner Lemberg
644d6fab7e * src/base/ftbitmap.c (FT_Bitmap_Convert): Improve. 
This commit completes argument checks and adds support for different
flow directions.
 2014-11-21 07:28:50 +01:00
Werner Lemberg
6de761744c * src/base/ftbitmap.c (FT_Bitmap_Copy): Improve. 
This commit adds argument checks and support for different flow
directions.
 2014-11-21 06:38:46 +01:00
Werner Lemberg
1e6e1b8390 * src/base/ftbitmap.c (FT_Bitmap_New): Check argument. 2014-11-21 06:38:46 +01:00
Werner Lemberg
b3500af717 Change some fields in `FT_Bitmap' to unsigned type. 
This doesn't break ABI.

* include/ftimage.h (FT_Bitmap): Make `rows', `width', `num_grays',
`pixel_mode', and `palette_mode' unsigned types.

* src/base/ftbitmap.c: Updated.
(FT_Bitmap_Copy): Fix casts.

* src/cache/ftcsbits.c, src/raster/ftraster.c, src/sfnt/pngshim.c:
Updated.
 2014-11-21 06:38:46 +01:00
Werner Lemberg
df485774fb Make FT_Bitmap_Convert' correctly handle negative pitch' values. 
* src/base/ftbitmap.c (FT_Bitmap_Convert): Always use positive value
for the pitch while copying data.
Correctly set pitch sign in target bitmap.
 2014-11-21 06:38:46 +01:00
Werner Lemberg
d6061212c3 Minor code improvement in `FT_Bitmap_Embolden'. 
* src/base/ftbitmap.c (FT_Bitmap_Embolden) <FT_PIXEL_MODE_GRAY[24]>:
Fix thinko.
 2014-11-21 06:38:01 +01:00
Werner Lemberg
8d05486eab Minor documentation improvements and whitespace. 2014-11-21 06:10:25 +01:00
Alexei Podtelezhnikov
237c0abfdc Trailing space. 2014-11-19 22:10:29 -05:00
Alexei Podtelezhnikov
f841ad3ec2 * src/base/fttrigon.c: Use dedicated `FT_Angle' for arctan table. 2014-11-19 21:19:06 -05:00
Alexei Podtelezhnikov
2e73a1b4fd [base] CORDIC improvements. 
The scaling between the hypotenuse and its CORDIC approximation is
based on regression analysis. The smaller padding for `theta' is
justifed by its maximum error of less than 6.

* src/base/fttrigon.c (ft_trig_downscale): Borrow code from
./ftcalc.c (ft_multo64), change linear intercept.
(ft_trig_pseudo_polarize): Decrease `theta' padding.
 2014-11-09 23:22:43 -05:00
Werner Lemberg
0e73d218bc * src/base/ftstroke.c (ft_stroker_inside): Fix border intersections. 
One more place to check whether `radius' is zero.

Problem reported by Marco Wertz <marco.wertz@gmx.de>.
 2014-11-09 01:27:38 +01:00
Werner Lemberg
d8632a842e Improve comments, remove dead code. 2014-10-25 06:28:18 +02:00
Alexei Podtelezhnikov
aba0f498c3 Improve flat corner definition. 
* include/internal/ftcalc.h (FT_HYPOT): Macro to approximate Euclidean
distance with the alpha max plus beta min algorithm.
* src/base/ftcalc.c (ft_corner_is_flat): Use it instead of Taxicab metric.
 2014-10-24 23:50:57 -04:00
Alexei Podtelezhnikov
673a28ef93 [base] Small bbox correction. 
* src/base/ftbbox.c (FT_Outline_Get_BBox): Start from nonsense bbox
instead of initial point that could be `off' in conic outlines.
 2014-10-11 14:40:51 -04:00
Alexei Podtelezhnikov
40dac11360 [base] Fix Savannah bug #43356. 
* src/base/ftbbox.c (BBox_Move_To, BBox_Conic_To): Update bbox in case
of implicit `to'.
(BBox_Line_To): New emitter that does not update bbox.
 2014-10-09 00:58:14 -04:00
Alexei Podtelezhnikov
2ffcf17e15 [base] Introduce and use new macro `FT_UPDATE_BBOX' 
* src/base/ftbbox.c (FT_UPDATE_BBOX): New macro.
(FT_Outline_Get_BBox): Use it here.
 2014-10-08 22:01:08 -04:00
Alexei Podtelezhnikov
7abdb8ccea [base] Significant optimization of `ft_div64by32' 
We shift as many bits as we can into the high register, perform
32-bit division with modulo there, then work through the remaining
bits with long division. This optimization is especially noticeable
for smaller dividends that barely use the high register.

* src/base/ftcalc.c (ft_div64by32): Updated.
 2014-10-02 23:13:33 -04:00
Werner Lemberg
c0ce72a6de Formatting. 2014-10-02 06:44:43 +02:00
Alexei Podtelezhnikov
74d0aad22c * src/base/ftcalc.c: Remove miscellaneous type casts. 2014-10-01 23:27:15 -04:00
Alexei Podtelezhnikov
418e18f3df [base] Use more common `FT_MSB' implementation with masks. 
* src/base/ftcalc.c (FT_MSB): Updated.
 2014-10-01 22:36:40 -04:00
Alexei Podtelezhnikov
955aff12c0 [base] Clean up. 
* src/base/ftcalc.c (FT_MOVE_SIGN): New macro for frequently used code.
 2014-09-30 23:09:39 -04:00
Alexei Podtelezhnikov
f78ca0dbb9 Remove commented out code. 2014-09-30 22:53:38 -04:00
Alexei Podtelezhnikov
7f49111f81 [base] Avoid unnecessary long division. 
This applies to `FT_MulDiv' but not to `FT_DivFix', where overflows or
lack thereof are predicted accurately.

* src/base/ftcalc.c (ft_div64by32): Improve readability.
(FT_MulDiv, FT_MulDiv_No_Round) [!FT_LONG64]: Use straight division
when multiplication stayed within 32 bits.
 2014-09-25 22:54:38 -04:00
Alexei Podtelezhnikov
5c894842d3 * src/base/ftcalc.c: Harmonize code. 2014-09-19 22:03:15 -04:00
Alexei Podtelezhnikov
ef070d458b [base] Tighten the overflow check in `FT_MulDiv'. 
* src/base/ftcalc.c (FT_MulDiv) [!FT_LONG64]: Updated.
 2014-09-15 22:06:19 -04:00
Alexei Podtelezhnikov
336735d8de [base] Tighten the overflow check in `FT_DivFix'. 
This fixes a 13-year old bug. The original overflow check should have
been updated when rounding was introduced into this function
(c2cd00443b).

* src/base/ftcalc.c (FT_DivFix) [!FT_LONG64]: Updated.
* include/freetype.h (FT_DivFix): Updated documentation.
 2014-09-03 22:55:26 -04:00
Alexei Podtelezhnikov
3212852cce [base] Tighten the overflow check in `FT_MulFix'. 
* src/base/ftcalc.c (FT_MulFix) [!FT_LONG64]: Updated.
 2014-09-03 21:57:42 -04:00
Behdad Esfahbod
1ec98b29ec Don't use `register' keyword. Fixes compiler warnings. 
* src/base/ftcalc.c (FT_Add64) [!FT_LONG64]: Do it.
* src/gzip/inftrees.c (huft_build): Ditto.
* src/truetype/ttinterp.c (TT_MulFix14_arm): Ditto.
 2014-08-31 08:47:11 +02:00
Werner Lemberg
70961e5772 Minor. 2014-08-20 16:19:32 +02:00
Alexei Podtelezhnikov
8fd87d4e69 [base] Small optimization of `FT_MulFix'. 
* src/base/ftcalc.c (FT_MulFix): Loosen up the condition for direct
32-bit calculations.
 2014-08-20 00:57:22 -04:00
Alexei Podtelezhnikov
f09326a1a6 [base] Use unsigned calculation in `FT_MulDiv'. 
* src/base/ftcalc.c (FT_MulDiv): Updated to expand 32-bit range.
 2014-08-20 00:08:38 -04:00
Alexei Podtelezhnikov
382f3155f6 [base] Remove truncation in `FT_DivFix'. 
* src/base/ftcalc.c (FT_DivFix): Updated.
 2014-08-18 23:16:15 -04:00
Alexei Podtelezhnikov
5ef2023c45 Minor refactoring. 
* src/base/ftcalc.c (FT_MulDiv, FT_MulDiv_No_Round): Updated.
 2014-08-14 23:21:46 -04:00
Alexei Podtelezhnikov
c7022467d2 Turn FT_MSB into a macro when using gcc builtins. 
* src/base/ftcalc.c, include/internal/ftcalc.h: Updated.
 2014-08-14 23:01:01 -04:00
Alexei Podtelezhnikov
87e56b043a Fix comment and whitespace. 2014-08-14 22:41:06 -04:00