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152 Commits
Author SHA1 Message Date
Kovid Goyal e227264bad Nicer error message when failing to load FreeType face 2022-03-09 14:28:38 +05:30
Kovid Goyal cc11326baa Linux: Do not rescale fallback fonts to match the main font cell height 
Fixes #4707
 2022-02-15 07:51:15 +05:30
Kovid Goyal dddff91fad Linux: Fix rendering of emoji when using scalable fonts such as Segoe UI Emoji 2022-02-06 13:31:11 +05:30
pagedown 49fbeb9a56 Remove the always true conditions 
Unsigned integers are always greater than or equal to zero.
The else branch is always the opposite.
 2022-01-01 21:27:01 +08:00
Kovid Goyal 55319cd6d6 FreeType: Round glyph advances 
The old code would simply add advances and store as a float with
individual glyph positioning using floor() based on the advance +
offset. This breaks rendering of infinite length ligatures at some font
sizes as they either under or overflow. Rounding the advances seems to
fix it. Dont know if it will have other ill-effects for non infinite
length ligatures. If it does we can test total ligature length and
use rounding only for long ligatures.

Fixes #3896
 2021-08-04 08:40:49 +05:30
Kovid Goyal be34af4555 Remove inline from .c files 
It is ignored by compilers and hides unused static functions
 2021-08-03 09:11:17 +05:30
Kovid Goyal cea8d4a87d ... 2021-07-06 09:05:50 +05:30
Kovid Goyal e07ba2c53d Dont move back glyph on overflow in infinite ligatures 2021-07-05 14:47:01 +05:30
Kovid Goyal 0af3f102aa ... 2021-07-05 14:38:07 +05:30
Yang Tang bfdbf06731 Remove redundant code 2021-06-16 11:44:27 -04:00
Kovid Goyal 0fb2f383ac Clean up the baseline adjustment PR 2021-06-16 20:39:00 +05:30
Yang Tang e964ac86d5 Allow specifying adjust_baseline as either pixels or percentage 2021-06-16 01:11:51 -04:00
Kovid Goyal e01bb09e8c Fix ligatures not working with the Iosevka font 
Fixes #297
 2021-06-04 12:18:17 +05:30
Kovid Goyal 6d6273af48 Properly scale emoji rendered in the CSD 2021-04-01 22:07:00 +05:30
Kovid Goyal 55dc354e68 Improve at exit cleanup functions 
Now they are run in a defined order not based on
the order of initialization
 2021-04-01 11:48:36 +05:30
Kovid Goyal dd2b6119b3 Implement rendering of emoji for CSD 2021-03-31 15:23:05 +05:30
Kovid Goyal da0009a46b More work on CSD title rendering 2021-03-30 22:12:54 +05:30
Kovid Goyal d7e1e53450 More work on text rendering for CSD 2021-03-30 08:25:01 +05:30
Kovid Goyal 4a3c57054f Function to get fallback font for a char 2021-03-29 15:35:38 +05:30
Kovid Goyal 41b9495588 More work on text rendering 2021-03-29 14:56:49 +05:30
Kovid Goyal 133b580262 Avoid error prints when rendering the space glyph and freetype fails to load it 
Also a micro-optimization, since there is no need to actually render the
space glyph
 2021-01-05 12:21:06 +05:30
Kovid Goyal 3e76cf87ce Linux: Fix rendering of emoji followed by the graphics variation selector not being colored with some fonts 
Harfbuzz, for some reason has started rendering variation selector
glyphs. These fail to load for some fonts. https://github.com/harfbuzz/harfbuzz/issues/2804

Fixes #3211
 2021-01-05 09:35:21 +05:30
Kovid Goyal f72ff73344 Correct return type 2021-01-05 09:17:17 +05:30
Kovid Goyal 9aae346ab5 Better error message when failing to load glyph 2021-01-05 09:10:35 +05:30
Kovid Goyal 229134cf31 Misc. fixes for issues reported by clang's static analyzer 
Most of them are false positives. A couple of mem leaks after unlikely
failure conditions.
 2020-09-10 10:47:28 +05:30
Kovid Goyal 4062365b19 Revert "Adjust cell height automatically for buggy fonts that draw brackets outside the bounding box" 
This reverts commit 5555a66638.
Since it does not fix the issue.
 2020-08-06 21:20:54 +05:30
Kovid Goyal df475dfde5 Fix indentation 2020-08-06 17:55:02 +05:30
Kovid Goyal 5555a66638 Adjust cell height automatically for buggy fonts that draw brackets outside the bounding box 
See https://github.com/cormullion/juliamono/issues/14
 2020-08-06 14:06:06 +05:30
Kovid Goyal e678c41f56 More code scanning warning fixes 2020-07-07 10:24:57 +05:30
Kovid Goyal ee3462592a Silence more code scanning warnings 2020-07-07 10:01:38 +05:30
Kovid Goyal ee47a10b37 Simplify code a bit 2020-07-07 09:44:51 +05:30
Kovid Goyal 209b78a3ec Silence a code scanning warning 2020-07-07 09:20:59 +05:30
Kovid Goyal a325a5fdee Merge branch 'strikethrough-info-from-font' of https://github.com/trygveaa/kitty 2020-03-31 09:34:07 +05:30
Trygve Aaberge 931e91f1a7 Read strikethrough info from font when using FreeType 
This reads the strikethrough position and thickness from the font so it
is rendered correctly.

This is only implemented for FreeType, not Core Text, because I didn't
find any way to get the info from Core Text, and I don't have a Mac to
test it on either. When using Core Text or when the font doesn't provide
the info, the same approximation as before is used.
 2020-03-30 20:09:30 +02:00
Kovid Goyal 0d68b7078c Check for float conversion issues on build 
Useful to catch any errors left over from the migration of times from
double to int64_t
 2019-09-27 19:47:25 +05:30
Kovid Goyal 57542fc204 Only disable liga and dlig for nimbus mono 2019-08-10 08:22:36 +05:30
Kovid Goyal cde69670ba Linux: Fix incorrect scaling for fallback fonts when the font has an underscore that renders out of bounds 
The calc_cell_height() function should not use underscore heights when
called in contexts other than cell metrics calculation.

Fixes #1713
 2019-06-30 08:51:35 +05:30
Kovid Goyal 1ae32b5742 Linux: Automatically increase cell height if the font being used is broken and draws the underscore outside the bounding box 
See #690
 2019-05-29 16:04:50 +05:30
Jerome Reybert e6217e1428 Fix warning with old freetype headers 
On Centos 7.6, build produces the following warnings:

    kitty/freetype.c: In function ‘render_bitmap’:
    kitty/freetype.c:369:36: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
             for (unsigned int i = 0; i < bitmap.rows; ++i) {
                                        ^
    kitty/freetype.c:371:40: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
                 for (unsigned int j = 0; j < bitmap.width; ++j) bitmap.buffer[i * stride + j] *= 255;
 2019-05-24 11:57:08 +02:00
Kovid Goyal f61dfb0828 Fix warning on older compilers 2019-05-24 12:07:24 +05:30
Kovid Goyal 4fff84b4b9 Add void to all function declarations for functions that take no arguments 
Micro-optimization for some architectures. Enforced via
-Wstrict-prototypes
 2019-05-13 11:04:21 +05:30
Kovid Goyal c181919a57 Fix rendering of simple strings with FreeType 2019-03-04 19:54:10 +05:30
Kovid Goyal 11522ccc92 Initial code to show window size in cells while resizing 2019-03-04 19:54:10 +05:30
Kovid Goyal bb97c589c1 FreeType code to render a simple string 2019-03-04 19:54:09 +05:30
Kovid Goyal 719a9a5b64 Fix #1428 2019-02-28 18:05:52 +05:30
Kovid Goyal d5366a421f ... 2018-12-03 21:35:03 +05:30
Kovid Goyal 3d5977669e Micro optimization 2018-12-03 20:04:58 +05:30
Kovid Goyal 36da668e6f Forgot to fill bitmap offset data when rendering colored glyphs 2018-12-03 20:00:24 +05:30
Kovid Goyal 222beedc2a Fix freetype based rendering of non-hinted fonts at small sizes 
Now use the post hinting bitmap bearing values instead of the hinting
independent glyph metrics bearing values. Fixes #1173
 2018-12-02 14:12:46 +05:30
Kovid Goyal ee31ba0c76 Merge branch 'multi-pua' of https://github.com/blueyed/kitty 2018-10-30 11:49:05 +05:30