2011-04-22  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	[autofit] Add more Indic scripts with hanging baseline.

	* src/autofit/afindic.c (af_indic_uniranges): Tibetan, Limbu,

	Sundanese, Meetei Mayak, Syloti Nagri and Sharada scripts are

	added.

2011-04-21  Behdad Esfahbod  <behdad@behdad.org>

	Always ignore global advance.

	This makes FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH redundant,

	deprecated, and ignored.  The new behavior is what every major user

	of FreeType has been requesting.  Global advance is broken in many

	CJK fonts.  Just ignoring it by default makes most sense.

	* src/truetype/ttdriver.c (tt_get_advances),

	src/truetype/ttgload.c (TT_Get_HMetrics, TT_Get_VMetrics,

	tt_get_metrics, compute_glyph_metrics, TT_Load_Glyph),

	src/truetype/ttgload.h: Implement it.

	* docs/CHANGES: Updated.

2011-04-21  rainy6144  <rainy6144@gmail.com>

	[autofit] Blur CJK stems if too many to preserve their gaps.

	When there are too many stems to preserve their gaps in the

	rasterization of CJK Ideographs at a low resolution, blur the

	stems instead of showing clumped stems.  See

	http://lists.gnu.org/archive/html/freetype-devel/2011-02/msg00011.html

	http://lists.gnu.org/archive/html/freetype-devel/2011-04/msg00046.html

	for details.

	* src/autofit/afcjk.c (af_cjk_hint_edges): Store the position of

	the previous stem by `has_last_stem' and `last_stem_pos', and skip

	a stem if the current and previous stem are too near to preserve

	the gap.

2011-04-18  Werner Lemberg  <wl@gnu.org>

	Integrate autofitter debugging stuff.

	* devel/ftoption.h, include/freetype/config/ftoption.h

	(FT_DEBUG_AUTOFIT): New macro.

	* include/freetype/internal/fttrace.h: Add trace components for

	autofitter.

	* src/autofit/aftypes.h (AF_LOG): Removed.

	(_af_debug): Removed.

	* src/autofit/*: s/AF_DEBUG/FT_DEBUG_AUTOFIT/.

	s/AF_LOG/FT_TRACE5/.

	Define FT_COMPONENT where necessary.

2011-04-18  Werner Lemberg  <wl@gnu.org>

	Synchronize config files.

	* builds/unix/ftconfig.in: Copy missing assembler routines from

	include/freetype/config/ftconfig.h.

2011-04-13  Werner Lemberg  <wl@gnu.org>

	Fix Savannah bug #33047.

	Patch submitted by anonymous reporter.

	* src/psaux/psobjs.c (ps_table_add): Use FT_PtrDist for pointer

	difference.

2011-04-11  Kan-Ru Chen  <kanru@kanru.info>

	Fix reading of signed integers from files on 64bit platforms.

	Previously, signed integers were converted to unsigned integers, but

	this can fail because of sign extension.  For example, 0xa344a1eb

	becomes 0xffffffffa344a1eb.

	We now do the reverse which is always correct because the integer

	size is the same during the cast from unsigned to signed.

	* include/freetype/internal/ftstream.h, src/base/ftstream.c

	(FT_Stream_Get*): Replace with...

	(FT_Stream_GetU*): Functions which read unsigned integers.

	Update all macros accordingly.

	* src/gzip/ftgzip.c (ft_gzip_get_uncompressed_size): Updated.

2011-04-07  Werner Lemberg  <wl@gnu.org>

	Update Unicode ranges for CJK autofitter; in particular, add Hangul.

	* src/autofit/afcjk.c (af_cjk_uniranges): Update to Unicode 6.0.

2011-04-04  Werner Lemberg  <wl@gnu.org>

	Fix formatting of autofit debug dumps.

	* src/autofit/afhints.c (af_glyph_hints_dump_points,

	af_glyph_hints_dump_segments, af_glyph_hints_dump_edges): Adjust

	column widths.

2011-03-30  Werner Lemberg  <wl@gnu.org>

	* src/autofit/aftypes.h (AF_OutlineRec): Removed, unused.

2011-03-24  Werner Lemberg  <wl@gnu.org>

	* src/cff/cfftypes.h (CFF_MAX_CID_FONTS): Increase to 256.

	This limit is given on p. 37 of Adobe Technical Note #5014.

2011-03-23  Werner Lemberg  <wl@gnu.org>

	* src/truetype/ttpload.c (tt_face_load_loca): Fix mismatch warning.

2011-03-20  Werner Lemberg  <wl@gnu.org>

	* src/sfnt/sfobjs.c (sfnt_open_font): Check number of TTC subfonts.

2011-03-19  Werner Lemberg  <wl@gnu.org>

	More C++ compilation fixes.

	* src/autofit/afhints.c (af_glyph_hints_dump_points,

	af_glyph_hints_dump_segments, af_glyph_hints_dump_edges)

	[__cplusplus]: Protect with `extern "C"'.

2011-03-18  Werner Lemberg  <wl@gnu.org>

	C++ compilation fixes.

	* src/autofit/aflatin.c (af_latin_hints_apply), src/autofit/afcjk.c

	(af_cjk_hints_apply): Use cast for `dim'.

2011-03-17  Alexei Podtelezhnikov  <apodtele@gmail.com>

	A better fix for Savannah bug #32671.

	* src/smooth/ftgrays.c (gray_render_conic): Clean up code and

	replace WHILE loop with a more natural DO-WHILE construct.

2011-03-16  Werner Lemberg  <wl@gnu.org>.

	* src/base/ftstroke.c (FT_StrokerRec): Remove unused `valid' field.

	Suggested by Graham Asher.

2011-03-09  Werner Lemberg  <wl@gnu.org>

	Make FT_Sfnt_Table_Info return the number of SFNT tables.

	* src/sfnt/sfdriver.c (sfnt_table_info): Implement it.

	* include/freetype/tttables.h: Update documentation.

	* docs/CHANGES: Updated.

2011-03-07  Bram Tassyns  <bramt@enfocus.be>

	Fix Savannah bug #27988.

	* src/cff/cffobjs.c (remove_style): New function.

	(cff_face_init): Use it to strip off the style part of the family

	name.

2011-03-07  Werner Lemberg  <wl@gnu.org>

	* docs/CHANGES: Updated.

2011-03-07  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Quick fix for Savannah bug #32671.

	This isn't the optimal solution yet, but it restores the previous

	rendering quality (more or less).

	* src/smooth/ftgrays.c (gray_render_conic): Do more splitting.

2011-03-06  Werner Lemberg  <wl@gnu.org>

	Fix autohinting fallback.

	* src/base/ftobjs.c (FT_Load_Glyph): Assure that we only check TTFs,

	ignoring CFF-based OTFs.

2011-02-27  Werner Lemberg  <wl@gnu.org>

	Add AF_CONFIG_OPTION_USE_WARPER to control the autofit warper.

	* devel/ftoption.h, include/freetype/config/ftoption.h

	(AF_CONFIG_OPTION_USE_WARPER): New macro.

	* src/autofit/aftypes.h (AF_USE_WARPER): Remove.

	* src/autofit/*: s/AF_USE_WARPER/AF_CONFIG_OPTION_USE_WARPER/.

	* src/autofit/afwarp.c [!AF_CONFIG_OPTION_USE_WARPER]: Replace dummy

	variable assignment with a typedef.

2011-02-26  Werner Lemberg  <wl@gnu.org>

	[autofit] Slight simplifications.

	* src/autofit/aflatin.c (af_latin_hints_link_segments): Remove

	test which always returns false.

	(af_latin_hints_compute_blue_edges): Remove redundant assignment.

2011-02-24  Werner Lemberg  <wl@gnu.org>

	* docs/PROBLEMS: Mention rendering differences on different

	platforms.

	Suggested and worded by Jason Owen <jason.a.owen@gmail.com>.

2011-02-24  Werner Lemberg  <wl@gnu.org>

	[autofit] Comment out unused code.

	* src/autofit/aflatin.c, src/autofit/aflatin2.c

	(af_latin_hints_compute_edges): Do it.

2011-02-24  Werner Lemberg  <wl@gnu.org>

	* src/autofit/afhints.h (AF_GlyphHints): Remove unused field.

2011-02-20  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	[cache] Fix an off-by-one bug in `FTC_Manager_RemoveFaceID'.

	Found by <ychen1392001@yahoo.com.cn>, see detail in

	  http://lists.gnu.org/archive/html/freetype/2011-01/msg00023.html

	* src/cache/ftccache.c (FTC_Cache_RemoveFaceID): Check the node

	buckets[cache->p + cache->mask] too.

2011-02-19  Kevin Kofler  <kevin.kofler@chello.at>

	Fall back to autohinting if a TTF/OTF doesn't contain any bytecode.

	This is Savannah patch #7471.

	* src/base/ftobjs.c (FT_Load_Glyph): Implement it.

2011-02-19  John Tytgat  <John.Tytgat@esko.com>

	[cff] Fix subset prefix removal.

	This is Savannah patch #7465.

	* src/cff/cffobjs.c (remove_subset_prefix): Update length after

	subset prefix removal.

2011-02-13  Bradley Grainger  <bgrainger@logos.com>

	Add inline assembly version of FT_MulFix for MSVC.

	* include/freetype/config/ftconfig.h: Ported the FT_MulFix_i386

	function from GNU inline assembly syntax (see #ifdef __GNUC__ block

	above) to MASM syntax for Microsoft Visual C++.

2011-02-13  Bradley Grainger  <bgrainger@logos.com>

	Add project and solution files in Visual Studio 2010 format.

	* builds/win32/.gitignore: Ignore user-specific cache files.

	* builds/win32/vc2010/: Add VS2010 project & solution files, created

	by upgrading builds/win32/vc2008/freetype.vcproj.

	* objs/.gitignore: Ignore Visual Studio output files.

2011-02-01  Werner Lemberg  <wl@gnu.org>

	* src/autofit/afdummy.c: Include `aferrors.h'.

	Problem reported by Chris Liddel <chris.liddell@artifex.com>.

2011-02-01  Werner Lemberg  <wl@gnu.org>

	[cff] Ignore unknown operators in charstrings.

	Patch suggested by Miles.Lau <sunliang_liu@foxitsoftware.com>.

	* src/cff/cffgload.c (cff_decoder_parse_charstrings): Emit tracing

	message for unknown operators and continue instead of exiting with a

	syntax error.

2011-02-01  Werner Lemberg  <wl@gnu.org>

	[truetype] FT_LOAD_PEDANTIC now affects `prep' and `fpgm' also.

	* src/truetype/ttgload.c (tt_loader_init): Handle

	`FT_LOAD_PEDANTIC'.

	* src/truetype/ttobjs.c (tt_size_run_fpgm, tt_size_run_prep,

	tt_size_init_bytecode, tt_size_ready_bytecode): New argument to

	handle pedantic mode.

	* src/truetype/ttobjs.h: Updated.

2011-01-31  Werner Lemberg  <wl@gnu.org>

	[truetype] Protect jump instructions against endless loops.

	* src/truetype/interp.c (DO_JROT, DO_JMPR, DO_JROF): Exit with error

	if offset is zero.

2011-01-31  Werner Lemberg  <wl@gnu.org>

	[truetype] Improve handling of invalid references.

	* src/truetype/interp.c: Set even more TT_Err_Invalid_Reference

	error codes only if pedantic hinting is active.  At the same time,

	try to provide sane values which hopefully allow useful

	continuation.  Exception to this is CALL and LOOPCALL – due to

	possible stack corruption it is necessary to bail out.

2011-01-31  Werner Lemberg  <wl@gnu.org>

	[truetype] Improve handling of stack underflow.

	* src/truetype/ttinterp.c (TT_RunIns, Ins_FLIPPT, Ins_DELTAP,

	Ins_DELTAC): Exit with error only if `pedantic_hinting' is set.

	Otherwise, try to do something sane.

2011-01-30  Werner Lemberg  <wl@gnu.org>

	* src/sfnt/ttmtx.c (tt_face_load_hmtx): Fix tracing message.

2011-01-30  LIU Sun-Liang  <sunliang_liu@foxitsoftware.com>

	[truetype]: Fix behaviour of MIAP for invalid arguments.

	* src/truetype/ttinterp.c (Ins_MIAP): Set reference points even in

	case of error.

2011-01-18  Werner Lemberg  <wl@gnu.org>

	[truetype] Fix handling of MIRP instruction.

	Thanks to Greg Hitchcock who explained the issue.

	* src/truetype/ttinterp.c (Ins_MIRP): Replace a `>=' operator with

	`>' since the description in the specification is incorrect.

	This fixes, for example, glyph `two' in font `Helvetica Neue LT Com

	65 medium' at 15ppem.

2011-01-15  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	Fix ARM assembly code in include/freetype/config/ftconfig.h.

	* include/freetype/config/ftconfig.h (FT_MulFix_arm):

	Copy the maintained code from builds/unix/ftconfig.in.

	Old GNU binutils could not accept the reduced syntax

	`orr %0, %2, lsl #16'.  Un-omitted syntax like RVCT,

	`orr %0, %0, %2, lsl #16' is better.  Reported by

	Johnson Y. Yan.  The bug report by Qt developers is

	considered too.

	http://bugreports.qt.nokia.com/browse/QTBUG-6521

2011-01-15  Werner Lemberg  <wl@gnu.org>

	[raster] Make bbox handling the same as with Microsoft's rasterizer.

	Right before B/W rasterizing, the bbox gets simply rounded to

	integers.  This fixes, for example, glyph `three' in font `Helvetica

	Neue LT Com 65 Medium' at 11ppem.

	Thanks to Greg Hitchcock who explained this behaviour.

	* src/raster/ftrend1.c (ft_raster1_render): Implement it.

2011-01-15  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	Copy -mcpu=* & -march=* options from CFLAGS to LDFLAGS.

	* builds/unix/configure.raw: Consider recent gcc-standard

	flags to specify architecture in CFLAGS & LDFLAGS

	harmonization.  Requested by Savannah bug #32114, to

	support multilib feature of BuildRoot SDK correctly.

2011-01-15  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	Fix off-by-one bug in CFLAGS & LDFLAGS harmonizer.

	* builds/unix/configure.raw: Some important options that

	included in CFLAGS but not in LDFLAGS are copied to

	LDFLAGS, but the last option in CFLAGS was not checked.

2011-01-13  Werner Lemberg  <wl@gnu.org>

	[raster] Add undocumented drop-out rule to the other bbox side also.

	* src/raster/ftraster.c (Vertical_Sweep_Drop,

	Horizontal_Sweep_Drop): Implement it.

2011-01-13  Werner Lemberg  <wl@gnu.org>

	[raster] Reduce jitter value.

	This catches a rendering problem with glyph `x' from Tahoma at

	10ppem.  It seems that the increase of the precision in the change

	from 2009-06-11 makes a larger jitter value unnecessary.

	* src/raster/ftraster.c (Set_High_Precision): Implement it.

2011-01-13  Werner Lemberg  <wl@gnu.org>

	[raster] Handle drop-outs at glyph borders according to Microsoft.

	If a drop-out rule would switch on a pixel outside of the glyph's

	bounding box, use the right (or top) pixel instead.  This is an

	undocumented feature, but some fonts like `Helvetica Neue LT Com 65

	Medium' heavily rely on it.

	Thanks to Greg Hitchcock who explained this behaviour.

	* src/raster/ftraster.c (Vertical_Sweep_Drop,

	Horizontal_Sweep_Drop): Implement it.

2011-01-09  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	[cache] Fix Savannah bug #31923, patch drafted by Harsha.

	When a node comparator changes the cached nodes during the

	search of a node matching with queried properties, the

	pointers obtained before the function should be updated to

	prevent the dereference to freed or reallocated nodes.

	To minimize the rescan of the linked list, the update is

	executed when the comparator notifies the change of cached

	nodes. This change depends previous change:

	38b272ffbbdaae276d636aec4ef84af407d16181

	* src/cache/ftccache.h (FTC_CACHE_LOOKUP_CMP): Rescan the

	top node if the cached nodes are changed.

	* src/cache/ftccache.c (FTC_Cache_Lookup): Ditto.

2011-01-09  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	[cache] Notice if a cache query induced the node list change.

	Some node comparators (comparing the cache node contents and the

	properties specified by the query) can flush the cache node to

	prevent the cache inflation.  The change may invalidate the pointers

	to the node obtained before the node comparison, so it should be

	noticed to the caller.  The problem caused by the cache node

	changing is reported by Harsha, see Savannah bug #31923.

	* src/cache/ftccache.h (FTC_Node_CompareFunc): Add new argument

	`FT_Bool* list_changed' to indicate the change of the cached nodes

	to the caller.

	(FTC_CACHE_LOOKUP_CMP): Watch the change of the cached nodes by

	`_list_changed'.

	(FTC_CACHE_TRYLOOP_END): Take new macro argument `_list_changed'

	and update it when `FTC_Manager_FlushN' flushes any nodes.

	* src/cache/ftccback.h (ftc_snode_compare): Updated to fit with new

	FTC_Node_CompareFunc type.

	(ftc_gnode_compare): Ditto.

	* src/cache/ftcbasic.c: Include FT_INTERNAL_OBJECTS_H to use

	TRUE/FALSE macros.

	(ftc_basic_gnode_compare_faceid): New argument `FT_Bool*

	list_changed' to indicate the change of the cache nodes (anyway, it

	is always FALSE).

	* src/cache/ftccmap.c: Include FT_INTERNAL_OBJECTS_H to use

	TRUE/FALSE macros.

	(ftc_cmap_node_compare): New argument `FT_Bool* list_changed' to

	indicate the change of the cache nodes (anyway, it is always FALSE).

	(ftc_cmap_node_remove_faceid): Ditto.

	* src/cache/ftccache.c (FTC_Cache_NewNode): Pass a NULL pointer to

	`FTC_CACHE_TRYLOOP_END', because the result is not needed.

	(FTC_Cache_Lookup): Watch the change of the cache nodes by

	`list_changed'.

	(FTC_Cache_RemoveFaceID): Ditto.

	* src/cache/ftcglyph.c: Include FT_INTERNAL_OBJECTS_H to use

	TRUE/FALSE macros.

	(ftc_gnode_compare): New argument `FT_Bool* list_changed' to

	indicate the change of the cache nodes (anyway, it is always FALSE).

	(FTC_GNode_Compare): New argument `FT_Bool* list_changed' to be

	passed to `ftc_gnode_compare'.

	* src/cache/ftcglyph.h (FTC_GNode_Compare): Ditto.

	* src/cache/ftcsbits.c (ftc_snode_compare): New argument `FT_Bool*

	list_changed' to indicate the change of the cache nodes, anyway.  It

	is updated by `FTC_CACHE_TRYLOOP'.

	(FTC_SNode_Compare): New argument `FT_Bool* list_changed' to be

	passed to `ftc_snode_compare'.

	* src/cache/ftcsbits.h (FTC_SNode_Compare): Ditto.

2011-01-09  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	[cache] Fit `FTC_GNode_Compare' to `FTC_Node_CompareFunc'.

	* src/cache/ftcglyph.h (FTC_GNode_Compare): Add the 3rd

	argument `FTC_Cache  cache' to fit FTC_Node_CompareFunc

	prototype.

	* src/cache/ftcglyph.c (FTC_GNode_Compare): Ditto. Anyway,

	`cache' is not used by its child `ftc_gnode_compare'.

2011-01-09  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	[cache] Deduplicate the code to get the top node by a hash.

	There are several duplicated code fragments getting the top node

	from a cache by a given hash, like:

	    idx = hash & cache->mask;

	    if ( idx < cache->p )

	      idx = hash & ( cache->mask * 2 + 1 );

	    pnode = cache->buckets + idx;

	To remove duplication, a cpp-macro to do same work

	`FTC_NODE__TOP_FOR_HASH' is introduced.  For non-inlined

	configuration, non-`ftc_get_top_node_for_hash' is also introduced.

	* src/cache/ftccache.h (FTC_NODE__TOP_FOR_HASH): Declare

	and implement inlined version.

	(FTC_CACHE_LOOKUP_CMP): Use `FTC_NODE__TOP_FOR_HASH'.

	* src/cache/ftccache.c (ftc_get_top_node_for_hash): Non-inlined

	version.

	(ftc_node_hash_unlink): Use `FTC_NODE__TOP_FOR_HASH'.

	(ftc_node_hash_link): Ditto.

	(FTC_Cache_Lookup): Ditto.

2011-01-09  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	[cache] inline-specific functions are conditionalized.

	* src/cache/ftcglyph.c (FTC_GNode_Compare): Conditionalized for

	inlined configuration.  This function is a thin wrapper of

	`ftc_gnode_compare' for inlined `FTC_CACHE_LOOKUP_CMP' (see

	`nodecmp' argument).  Under non-inlined configuration,

	`ftc_gnode_compare' is invoked by `FTC_Cache_Lookup', via

	`FTC_Cache->clazz.node_compare'.