<feed xmlns='http://www.w3.org/2005/Atom'>
<title>emacs/src/composite.h, branch scratch/ns/performance</title>
<subtitle>Emacs is the extensible, customizable, self-documenting real-time display editor. 
</subtitle>
<link rel='alternate' type='text/html' href='https://jason.zzq.org/git/emacs/'/>
<entry>
<title>Avoid segfaults due to using fonts that were closed</title>
<updated>2020-10-26T16:14:32+00:00</updated>
<author>
<name>Eli Zaretskii</name>
</author>
<published>2020-10-26T16:14:32+00:00</published>
<link rel='alternate' type='text/html' href='https://jason.zzq.org/git/emacs/commit/?id=634bbb61f2f1b3e0fdf830f58a7ec7e39ea5a14f'/>
<id>634bbb61f2f1b3e0fdf830f58a7ec7e39ea5a14f</id>
<content type='text'>
* src/composite.c (composition_gstring_cache_clear_font): New
function.
* src/composite.h (composition_gstring_cache_clear_font): Add
prototype.
* src/font.c (font_clear_cache): When we are about to close a
font, remove from the gstring cache any lgstring that uses this
font.  (Bug#42943)
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* src/composite.c (composition_gstring_cache_clear_font): New
function.
* src/composite.h (composition_gstring_cache_clear_font): Add
prototype.
* src/font.c (font_clear_cache): When we are about to close a
font, remove from the gstring cache any lgstring that uses this
font.  (Bug#42943)
</pre>
</div>
</content>
</entry>
<entry>
<title>Improve support for shaping Egyptian Hieroglyphs</title>
<updated>2020-10-25T16:05:37+00:00</updated>
<author>
<name>Eli Zaretskii</name>
</author>
<published>2020-10-25T16:05:37+00:00</published>
<link rel='alternate' type='text/html' href='https://jason.zzq.org/git/emacs/commit/?id=8164f3e1ab3ca8d28f782407ab8daf086a624d1a'/>
<id>8164f3e1ab3ca8d28f782407ab8daf086a624d1a</id>
<content type='text'>
* src/composite.c (composition_gstring_lookup_cache): Renamed from
gstring_lookup_cache and made external.  All callers changed.
* src/composite.h (composition_gstring_lookup_cache): Add
prototype.
* src/font.c (Ffont_shape_gstring): Call
composition_gstring_lookup_cache and return the cached composition
if it is already in the cache.

* lisp/language/misc-lang.el (egyptian-shape-grouping): New
function.
(composition-function-table): Use egyptian-shape-grouping in
setting up compositions for Egyptian Hieroglyphs.  Fix the
composition setup for horizontal and vertical joiners.
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* src/composite.c (composition_gstring_lookup_cache): Renamed from
gstring_lookup_cache and made external.  All callers changed.
* src/composite.h (composition_gstring_lookup_cache): Add
prototype.
* src/font.c (Ffont_shape_gstring): Call
composition_gstring_lookup_cache and return the cached composition
if it is already in the cache.

* lisp/language/misc-lang.el (egyptian-shape-grouping): New
function.
(composition-function-table): Use egyptian-shape-grouping in
setting up compositions for Egyptian Hieroglyphs.  Fix the
composition setup for horizontal and vertical joiners.
</pre>
</div>
</content>
</entry>
<entry>
<title>Remove UNSIGNED_CMP</title>
<updated>2020-04-12T02:00:27+00:00</updated>
<author>
<name>Paul Eggert</name>
</author>
<published>2020-04-12T01:35:35+00:00</published>
<link rel='alternate' type='text/html' href='https://jason.zzq.org/git/emacs/commit/?id=43282a6772630275259dbc7560913c07f72eb06e'/>
<id>43282a6772630275259dbc7560913c07f72eb06e</id>
<content type='text'>
I added this macro in 2011 to fix some signedness comparison bugs.
However, it’s a weird macro and the bugs can be fixed in a
more-straightforward way.  This helps performance slightly (0.5%) on my
platform (Fedora 31 x86-64, GCC 9.3.1 with -O2).
* src/casefiddle.c (do_casify_natnum): Use simple comparison
instead of UNSIGNED_CMP.
* src/character.h (CHAR_VALID_P, SINGLE_BYTE_CHAR_P, CHAR_STRING):
* src/composite.h (COMPOSITION_ENCODE_RULE_VALID):
* src/lisp.h (ASCII_CHAR_P):
Now an inline function, and uses simple comparison instead of
UNSIGNED_CMP.
* src/dispextern.h (FACE_FROM_ID, FACE_FROM_ID_OR_NULL)
(IMAGE_FROM_ID, IMAGE_OPT_FROM_ID): Move these to ...
* src/frame.h (FACE_FROM_ID, FACE_FROM_ID_OR_NULL)
(IMAGE_FROM_ID, IMAGE_OPT_FROM_ID): ... here, and make them
inline functions that no longer use UNSIGNED_CMP.
* src/keyboard.c (read_char): UNSIGNED_CMP is not needed here
since XFIXNAT always returns a nonnegative value.
* src/lisp.h (UNSIGNED_CMP): Remove; no longer used.
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
I added this macro in 2011 to fix some signedness comparison bugs.
However, it’s a weird macro and the bugs can be fixed in a
more-straightforward way.  This helps performance slightly (0.5%) on my
platform (Fedora 31 x86-64, GCC 9.3.1 with -O2).
* src/casefiddle.c (do_casify_natnum): Use simple comparison
instead of UNSIGNED_CMP.
* src/character.h (CHAR_VALID_P, SINGLE_BYTE_CHAR_P, CHAR_STRING):
* src/composite.h (COMPOSITION_ENCODE_RULE_VALID):
* src/lisp.h (ASCII_CHAR_P):
Now an inline function, and uses simple comparison instead of
UNSIGNED_CMP.
* src/dispextern.h (FACE_FROM_ID, FACE_FROM_ID_OR_NULL)
(IMAGE_FROM_ID, IMAGE_OPT_FROM_ID): Move these to ...
* src/frame.h (FACE_FROM_ID, FACE_FROM_ID_OR_NULL)
(IMAGE_FROM_ID, IMAGE_OPT_FROM_ID): ... here, and make them
inline functions that no longer use UNSIGNED_CMP.
* src/keyboard.c (read_char): UNSIGNED_CMP is not needed here
since XFIXNAT always returns a nonnegative value.
* src/lisp.h (UNSIGNED_CMP): Remove; no longer used.
</pre>
</div>
</content>
</entry>
<entry>
<title>Update copyright year to 2020</title>
<updated>2020-01-01T00:59:52+00:00</updated>
<author>
<name>Paul Eggert</name>
</author>
<published>2020-01-01T00:19:43+00:00</published>
<link rel='alternate' type='text/html' href='https://jason.zzq.org/git/emacs/commit/?id=365e01cc9f64ce6ca947ccfd8612d60763280a37'/>
<id>365e01cc9f64ce6ca947ccfd8612d60763280a37</id>
<content type='text'>
Run "TZ=UTC0 admin/update-copyright $(git ls-files)".
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Run "TZ=UTC0 admin/update-copyright $(git ls-files)".
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'master' into harfbuzz</title>
<updated>2019-04-27T09:33:39+00:00</updated>
<author>
<name>YAMAMOTO Mitsuharu</name>
</author>
<published>2019-04-27T09:33:39+00:00</published>
<link rel='alternate' type='text/html' href='https://jason.zzq.org/git/emacs/commit/?id=886bedb36c7b959b7e6fc8ce8e0c04e144b0ae28'/>
<id>886bedb36c7b959b7e6fc8ce8e0c04e144b0ae28</id>
<content type='text'>
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
</pre>
</div>
</content>
</entry>
<entry>
<title>We need the bidi level not the paragraph direction</title>
<updated>2019-01-05T20:54:48+00:00</updated>
<author>
<name>Khaled Hosny</name>
</author>
<published>2019-01-05T20:54:48+00:00</published>
<link rel='alternate' type='text/html' href='https://jason.zzq.org/git/emacs/commit/?id=398ad62a4986e426aa665010b69319fec9203430'/>
<id>398ad62a4986e426aa665010b69319fec9203430</id>
<content type='text'>
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
</pre>
</div>
</content>
</entry>
<entry>
<title>Fix text direction of the HarfBuzz shaping buffer</title>
<updated>2019-01-02T15:55:45+00:00</updated>
<author>
<name>Eli Zaretskii</name>
</author>
<published>2019-01-02T15:55:45+00:00</published>
<link rel='alternate' type='text/html' href='https://jason.zzq.org/git/emacs/commit/?id=1cef2d7cbea407eaeff5c65e9594e03fabe3bf5e'/>
<id>1cef2d7cbea407eaeff5c65e9594e03fabe3bf5e</id>
<content type='text'>
* src/indent.c (scan_for_column, compute_motion):
* src/xdisp.c (CHAR_COMPOSED_P): Pass PDIR argument to
composition_reseat_it.
* src/composite.c (composition_reseat_it): Accept an
additional argument PDIR that provides the current paragraph's
base direction; all callers changed.  Use PDIR to fix
calculation of the DIRECTION argument to autocmp_chars.
(Bug#33944)
* src/composite.h: Include dispextern.h.
(composition_reseat_it): Update prototype.
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* src/indent.c (scan_for_column, compute_motion):
* src/xdisp.c (CHAR_COMPOSED_P): Pass PDIR argument to
composition_reseat_it.
* src/composite.c (composition_reseat_it): Accept an
additional argument PDIR that provides the current paragraph's
base direction; all callers changed.  Use PDIR to fix
calculation of the DIRECTION argument to autocmp_chars.
(Bug#33944)
* src/composite.h: Include dispextern.h.
(composition_reseat_it): Update prototype.
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge from origin/emacs-26</title>
<updated>2019-01-01T01:57:29+00:00</updated>
<author>
<name>Paul Eggert</name>
</author>
<published>2019-01-01T01:57:29+00:00</published>
<link rel='alternate' type='text/html' href='https://jason.zzq.org/git/emacs/commit/?id=ba809612c06bcabd05dcbaae79da39dcb0925992'/>
<id>ba809612c06bcabd05dcbaae79da39dcb0925992</id>
<content type='text'>
2fcf2df Fix copyright years by hand
26bed8b Update copyright year to 2019
2814292 Fix value of default frame height.  (Bug#33921)
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
2fcf2df Fix copyright years by hand
26bed8b Update copyright year to 2019
2814292 Fix value of default frame height.  (Bug#33921)
</pre>
</div>
</content>
</entry>
<entry>
<title>Update copyright year to 2019</title>
<updated>2019-01-01T01:01:13+00:00</updated>
<author>
<name>Paul Eggert</name>
</author>
<published>2019-01-01T00:59:58+00:00</published>
<link rel='alternate' type='text/html' href='https://jason.zzq.org/git/emacs/commit/?id=26bed8ba10eeaf0a340a8d0d760c5578dddec867'/>
<id>26bed8ba10eeaf0a340a8d0d760c5578dddec867</id>
<content type='text'>
Run 'TZ=UTC0 admin/update-copyright $(git ls-files)'.
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Run 'TZ=UTC0 admin/update-copyright $(git ls-files)'.
</pre>
</div>
</content>
</entry>
<entry>
<title>Add make_vector and make_nil_vector</title>
<updated>2018-12-09T08:23:55+00:00</updated>
<author>
<name>Paul Eggert</name>
</author>
<published>2018-12-09T08:18:36+00:00</published>
<link rel='alternate' type='text/html' href='https://jason.zzq.org/git/emacs/commit/?id=d79bb75683ceb4eee2f753eb38fa8db99aff4568'/>
<id>d79bb75683ceb4eee2f753eb38fa8db99aff4568</id>
<content type='text'>
This makes the callers a bit easier to read, and doubtless
improves efficiency very slightly.  It also simplifies
possible future changes to allow bignum indexes to buffers.
* src/alloc.c (allocate_vectorlike):
Prefer ptrdiff_t to size_t when either will do.
(make_vector): New function.
(Fmake_vector): Use it.
* src/buffer.c (syms_of_buffer):
* src/bytecode.c (syms_of_bytecode):
* src/category.c (Fmake_category_table, init_category_once):
* src/ccl.c (syms_of_ccl):
* src/character.c (syms_of_character):
* src/charset.c (Fdefine_charset_internal)
(Ffind_charset_region, Ffind_charset_string):
* src/chartab.c (copy_char_table):
* src/coding.c (Fdefine_coding_system_internal, syms_of_coding):
* src/composite.c (get_composition_id, Fcomposition_get_gstring):
* src/composite.h (LGLYPH_NEW):
* src/fns.c (concat, Flocale_info, make_hash_table):
* src/font.c (font_otf_ValueRecord, font_otf_anchor)
(build_style_table, syms_of_font):
* src/fontset.c (RFONT_DEF_NEW, fontset_find_font)
(dump_fontset, syms_of_fontset):
* src/image.c (xpm_make_color_table_v):
* src/keyboard.c (modify_event_symbol, menu_bar_items)
(parse_menu_item, parse_tool_bar_item, init_tool_bar_items)
(syms_of_keyboard):
* src/keymap.c (Fdefine_key, describe_map, describe_vector):
* src/lread.c (read_vector):
* src/macfont.m (macfont_shape):
* src/menu.c (init_menu_items):
* src/nsfns.m (ns_make_monitor_attribute_list):
* src/process.c (conv_sockaddr_to_lisp, network_interface_info):
* src/profiler.c (make_log):
* src/window.c (Fcurrent_window_configuration):
* src/xdisp.c (with_echo_area_buffer_unwind_data)
(format_mode_line_unwind_data):
* src/xfaces.c (Finternal_make_lisp_face)
(Fface_attributes_as_vector):
* src/xfns.c (x_make_monitor_attribute_list)
(Fx_display_monitor_attributes_list):
* src/xfont.c (syms_of_xfont):
* src/xselect.c (x_handle_dnd_message):
* src/xwidget.c (save_script_callback):
Prefer make_nil_vector (N) to Fmake_vector (make_fixnum (N), Qnil).
* src/callint.c (Fcall_interactively):
* src/charset.c (load_charset_map):
* src/chartab.c (Fmake_char_table, uniprop_encode_value_numeric):
* src/composite.c (get_composition_id)
* src/dispnew.c (Fframe_or_buffer_changed_p)
(syms_of_display):
* src/fns.c (make_hash_table, maybe_resize_hash_table):
* src/font.c (font_style_to_value):
* src/fontset.c (FONTSET_ADD, fontset_add):
* src/json.c (json_to_lisp):
* src/keymap.c (syms_of_keymap):
* src/lread.c (init_obarray):
* src/profiler.c (make_log, Fprofiler_cpu_log):
* src/term.c (term_get_fkeys_1):
Prefer make_vector (N, V) to Fmake_vector (make_fixnum (N), V).
* src/font.c (build_style_table):
* src/macfont.m (macfont_shape):
* src/process.c (conv_sockaddr_to_lisp, network_interface_info):
Prefer make_uninit_vector if the vector will be initialized soon.
* src/lisp.h (make_nil_vector): New function.
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This makes the callers a bit easier to read, and doubtless
improves efficiency very slightly.  It also simplifies
possible future changes to allow bignum indexes to buffers.
* src/alloc.c (allocate_vectorlike):
Prefer ptrdiff_t to size_t when either will do.
(make_vector): New function.
(Fmake_vector): Use it.
* src/buffer.c (syms_of_buffer):
* src/bytecode.c (syms_of_bytecode):
* src/category.c (Fmake_category_table, init_category_once):
* src/ccl.c (syms_of_ccl):
* src/character.c (syms_of_character):
* src/charset.c (Fdefine_charset_internal)
(Ffind_charset_region, Ffind_charset_string):
* src/chartab.c (copy_char_table):
* src/coding.c (Fdefine_coding_system_internal, syms_of_coding):
* src/composite.c (get_composition_id, Fcomposition_get_gstring):
* src/composite.h (LGLYPH_NEW):
* src/fns.c (concat, Flocale_info, make_hash_table):
* src/font.c (font_otf_ValueRecord, font_otf_anchor)
(build_style_table, syms_of_font):
* src/fontset.c (RFONT_DEF_NEW, fontset_find_font)
(dump_fontset, syms_of_fontset):
* src/image.c (xpm_make_color_table_v):
* src/keyboard.c (modify_event_symbol, menu_bar_items)
(parse_menu_item, parse_tool_bar_item, init_tool_bar_items)
(syms_of_keyboard):
* src/keymap.c (Fdefine_key, describe_map, describe_vector):
* src/lread.c (read_vector):
* src/macfont.m (macfont_shape):
* src/menu.c (init_menu_items):
* src/nsfns.m (ns_make_monitor_attribute_list):
* src/process.c (conv_sockaddr_to_lisp, network_interface_info):
* src/profiler.c (make_log):
* src/window.c (Fcurrent_window_configuration):
* src/xdisp.c (with_echo_area_buffer_unwind_data)
(format_mode_line_unwind_data):
* src/xfaces.c (Finternal_make_lisp_face)
(Fface_attributes_as_vector):
* src/xfns.c (x_make_monitor_attribute_list)
(Fx_display_monitor_attributes_list):
* src/xfont.c (syms_of_xfont):
* src/xselect.c (x_handle_dnd_message):
* src/xwidget.c (save_script_callback):
Prefer make_nil_vector (N) to Fmake_vector (make_fixnum (N), Qnil).
* src/callint.c (Fcall_interactively):
* src/charset.c (load_charset_map):
* src/chartab.c (Fmake_char_table, uniprop_encode_value_numeric):
* src/composite.c (get_composition_id)
* src/dispnew.c (Fframe_or_buffer_changed_p)
(syms_of_display):
* src/fns.c (make_hash_table, maybe_resize_hash_table):
* src/font.c (font_style_to_value):
* src/fontset.c (FONTSET_ADD, fontset_add):
* src/json.c (json_to_lisp):
* src/keymap.c (syms_of_keymap):
* src/lread.c (init_obarray):
* src/profiler.c (make_log, Fprofiler_cpu_log):
* src/term.c (term_get_fkeys_1):
Prefer make_vector (N, V) to Fmake_vector (make_fixnum (N), V).
* src/font.c (build_style_table):
* src/macfont.m (macfont_shape):
* src/process.c (conv_sockaddr_to_lisp, network_interface_info):
Prefer make_uninit_vector if the vector will be initialized soon.
* src/lisp.h (make_nil_vector): New function.
</pre>
</div>
</content>
</entry>
</feed>
