Added ligature-boxdraw v0.9 patch
This commit is contained in:
5
Makefile
5
Makefile
@@ -4,7 +4,7 @@
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include config.mk
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SRC = st.c x.c boxdraw.c
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SRC = st.c x.c boxdraw.c hb.c
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OBJ = $(SRC:.c=.o)
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all: options st
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@@ -22,8 +22,9 @@ config.h:
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$(CC) $(STCFLAGS) -c $<
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st.o: config.h st.h win.h
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x.o: arg.h config.h st.h win.h
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x.o: arg.h config.h st.h win.h hb.h
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boxdraw.o: config.h st.h boxdraw_data.h
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hb.o: st.h
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$(OBJ): config.h config.mk
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@@ -15,10 +15,12 @@ PKG_CONFIG = pkg-config
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# includes and libs
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INCS = -I$(X11INC) \
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`$(PKG_CONFIG) --cflags fontconfig` \
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`$(PKG_CONFIG) --cflags freetype2`
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`$(PKG_CONFIG) --cflags freetype2` \
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`$(PKG_CONFIG) --cflags harfbuzz`
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LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft \
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`$(PKG_CONFIG) --libs fontconfig` \
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`$(PKG_CONFIG) --libs freetype2`
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`$(PKG_CONFIG) --libs freetype2` \
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`$(PKG_CONFIG) --libs harfbuzz`
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# flags
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STCPPFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=600
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124
hb.c
Normal file
124
hb.c
Normal file
@@ -0,0 +1,124 @@
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#include <stdlib.h>
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#include <stdio.h>
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#include <math.h>
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#include <X11/Xft/Xft.h>
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#include <X11/cursorfont.h>
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#include <hb.h>
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#include <hb-ft.h>
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#include "st.h"
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#include "hb.h"
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#define FEATURE(c1,c2,c3,c4) { .tag = HB_TAG(c1,c2,c3,c4), .value = 1, .start = HB_FEATURE_GLOBAL_START, .end = HB_FEATURE_GLOBAL_END }
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#define BUFFER_STEP 256
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hb_font_t *hbfindfont(XftFont *match);
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typedef struct {
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XftFont *match;
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hb_font_t *font;
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} HbFontMatch;
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typedef struct {
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size_t capacity;
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HbFontMatch *fonts;
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} HbFontCache;
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static HbFontCache hbfontcache = { 0, NULL };
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typedef struct {
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size_t capacity;
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Rune *runes;
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} RuneBuffer;
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static RuneBuffer hbrunebuffer = { 0, NULL };
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/*
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* Poplulate the array with a list of font features, wrapped in FEATURE macro,
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* e. g.
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* FEATURE('c', 'a', 'l', 't'), FEATURE('d', 'l', 'i', 'g')
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*/
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hb_feature_t features[] = { };
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void
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hbunloadfonts()
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{
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for (int i = 0; i < hbfontcache.capacity; i++) {
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hb_font_destroy(hbfontcache.fonts[i].font);
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XftUnlockFace(hbfontcache.fonts[i].match);
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}
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if (hbfontcache.fonts != NULL) {
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free(hbfontcache.fonts);
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hbfontcache.fonts = NULL;
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}
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hbfontcache.capacity = 0;
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}
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hb_font_t *
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hbfindfont(XftFont *match)
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{
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for (int i = 0; i < hbfontcache.capacity; i++) {
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if (hbfontcache.fonts[i].match == match)
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return hbfontcache.fonts[i].font;
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}
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/* Font not found in cache, caching it now. */
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hbfontcache.fonts = realloc(hbfontcache.fonts, sizeof(HbFontMatch) * (hbfontcache.capacity + 1));
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FT_Face face = XftLockFace(match);
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hb_font_t *font = hb_ft_font_create(face, NULL);
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if (font == NULL)
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die("Failed to load Harfbuzz font.");
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hbfontcache.fonts[hbfontcache.capacity].match = match;
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hbfontcache.fonts[hbfontcache.capacity].font = font;
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hbfontcache.capacity += 1;
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return font;
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}
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void hbtransform(HbTransformData *data, XftFont *xfont, const Glyph *glyphs, int start, int length) {
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ushort mode = USHRT_MAX;
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unsigned int glyph_count;
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int rune_idx, glyph_idx, end = start + length;
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hb_font_t *font = hbfindfont(xfont);
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if (font == NULL)
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return;
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hb_buffer_t *buffer = hb_buffer_create();
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hb_buffer_set_direction(buffer, HB_DIRECTION_LTR);
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/* Resize the buffer if required length is larger. */
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if (hbrunebuffer.capacity < length) {
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hbrunebuffer.capacity = (length / BUFFER_STEP + 1) * BUFFER_STEP;
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hbrunebuffer.runes = realloc(hbrunebuffer.runes, hbrunebuffer.capacity * sizeof(Rune));
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}
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/* Fill buffer with codepoints. */
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for (rune_idx = 0, glyph_idx = start; glyph_idx < end; glyph_idx++, rune_idx++) {
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hbrunebuffer.runes[rune_idx] = glyphs[glyph_idx].u;
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mode = glyphs[glyph_idx].mode;
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if (mode & ATTR_WDUMMY)
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hbrunebuffer.runes[rune_idx] = 0x0020;
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}
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hb_buffer_add_codepoints(buffer, hbrunebuffer.runes, length, 0, length);
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/* Shape the segment. */
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hb_shape(font, buffer, features, sizeof(features)/sizeof(hb_feature_t));
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/* Get new glyph info. */
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hb_glyph_info_t *info = hb_buffer_get_glyph_infos(buffer, &glyph_count);
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hb_glyph_position_t *pos = hb_buffer_get_glyph_positions(buffer, &glyph_count);
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/* Fill the output. */
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data->buffer = buffer;
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data->glyphs = info;
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data->positions = pos;
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data->count = glyph_count;
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}
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void hbcleanup(HbTransformData *data) {
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hb_buffer_destroy(data->buffer);
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memset(data, 0, sizeof(HbTransformData));
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}
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14
hb.h
Normal file
14
hb.h
Normal file
@@ -0,0 +1,14 @@
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#include <X11/Xft/Xft.h>
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#include <hb.h>
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#include <hb-ft.h>
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typedef struct {
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hb_buffer_t *buffer;
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hb_glyph_info_t *glyphs;
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hb_glyph_position_t *positions;
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unsigned int count;
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} HbTransformData;
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void hbunloadfonts();
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void hbtransform(HbTransformData *, XftFont *, const Glyph *, int, int);
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void hbcleanup(HbTransformData *);
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3
st.c
3
st.c
@@ -2655,7 +2655,8 @@ draw(void)
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drawregion(0, 0, term.col, term.row);
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xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
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term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
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term.ocx, term.ocy, term.line[term.ocy][term.ocx],
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term.line[term.ocy], term.col);
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term.ocx = cx;
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term.ocy = term.c.y;
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xfinishdraw();
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3
st.h
3
st.h
@@ -11,7 +11,8 @@
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#define DIVCEIL(n, d) (((n) + ((d) - 1)) / (d))
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#define DEFAULT(a, b) (a) = (a) ? (a) : (b)
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#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
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#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || \
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#define ATTRCMP(a, b) (((a).mode & (~ATTR_WRAP)) != ((b).mode & (~ATTR_WRAP)) || \
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(a).fg != (b).fg || \
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(a).bg != (b).bg)
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#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + \
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(t1.tv_nsec-t2.tv_nsec)/1E6)
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2
win.h
2
win.h
@@ -25,7 +25,7 @@ enum win_mode {
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void xbell(void);
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void xclipcopy(void);
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void xdrawcursor(int, int, Glyph, int, int, Glyph);
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void xdrawcursor(int, int, Glyph, int, int, Glyph, Line, int);
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void xdrawline(Line, int, int, int);
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void xfinishdraw(void);
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void xloadcols(void);
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290
x.c
290
x.c
@@ -19,6 +19,7 @@ char *argv0;
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#include "arg.h"
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#include "st.h"
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#include "win.h"
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#include "hb.h"
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/* types used in config.h */
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typedef struct {
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@@ -141,6 +142,7 @@ typedef struct {
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} DC;
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static inline ushort sixd_to_16bit(int);
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static void xresetfontsettings(ushort mode, Font **font, int *frcflags);
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static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int);
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static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int, int);
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static void xdrawglyph(Glyph, int, int);
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@@ -757,7 +759,7 @@ xresize(int col, int row)
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xclear(0, 0, win.w, win.h);
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/* resize to new width */
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xw.specbuf = xrealloc(xw.specbuf, col * sizeof(GlyphFontSpec));
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xw.specbuf = xrealloc(xw.specbuf, col * sizeof(GlyphFontSpec) * 4);
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}
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ushort
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@@ -1062,6 +1064,9 @@ xunloadfont(Font *f)
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void
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xunloadfonts(void)
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{
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/* Clear Harfbuzz font cache. */
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hbunloadfonts();
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/* Free the loaded fonts in the font cache. */
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while (frclen > 0)
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XftFontClose(xw.dpy, frc[--frclen].font);
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@@ -1185,7 +1190,7 @@ xinit(int cols, int rows)
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XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h);
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/* font spec buffer */
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xw.specbuf = xmalloc(cols * sizeof(GlyphFontSpec));
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xw.specbuf = xmalloc(cols * sizeof(GlyphFontSpec) * 4);
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/* Xft rendering context */
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xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
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@@ -1241,6 +1246,22 @@ xinit(int cols, int rows)
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boxdraw_xinit(xw.dpy, xw.cmap, xw.draw, xw.vis);
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}
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void
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xresetfontsettings(ushort mode, Font **font, int *frcflags)
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{
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*font = &dc.font;
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if ((mode & ATTR_ITALIC) && (mode & ATTR_BOLD)) {
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*font = &dc.ibfont;
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*frcflags = FRC_ITALICBOLD;
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} else if (mode & ATTR_ITALIC) {
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*font = &dc.ifont;
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*frcflags = FRC_ITALIC;
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} else if (mode & ATTR_BOLD) {
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*font = &dc.bfont;
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*frcflags = FRC_BOLD;
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}
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}
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int
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xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x, int y)
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{
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@@ -1255,126 +1276,158 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
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FcPattern *fcpattern, *fontpattern;
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FcFontSet *fcsets[] = { NULL };
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FcCharSet *fccharset;
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int i, f, numspecs = 0;
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int i, f, length = 0, start = 0, numspecs = 0;
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float cluster_xp = xp, cluster_yp = yp;
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HbTransformData shaped = { 0 };
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/* Initial values. */
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mode = prevmode = glyphs[0].mode;
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xresetfontsettings(mode, &font, &frcflags);
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for (i = 0, xp = winx, yp = winy + font->ascent; i < len; ++i) {
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/* Fetch rune and mode for current glyph. */
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rune = glyphs[i].u;
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mode = glyphs[i].mode;
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/* Skip dummy wide-character spacing. */
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if (mode == ATTR_WDUMMY)
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if (mode & ATTR_WDUMMY && i < (len - 1))
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continue;
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/* Determine font for glyph if different from previous glyph. */
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if (prevmode != mode) {
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prevmode = mode;
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font = &dc.font;
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frcflags = FRC_NORMAL;
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runewidth = win.cw * ((mode & ATTR_WIDE) ? 2.0f : 1.0f);
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if ((mode & ATTR_ITALIC) && (mode & ATTR_BOLD)) {
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font = &dc.ibfont;
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frcflags = FRC_ITALICBOLD;
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} else if (mode & ATTR_ITALIC) {
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font = &dc.ifont;
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frcflags = FRC_ITALIC;
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} else if (mode & ATTR_BOLD) {
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font = &dc.bfont;
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frcflags = FRC_BOLD;
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}
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yp = winy + font->ascent;
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}
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if (mode & ATTR_BOXDRAW) {
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/* minor shoehorning: boxdraw uses only this ushort */
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glyphidx = boxdrawindex(&glyphs[i]);
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} else {
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/* Lookup character index with default font. */
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glyphidx = XftCharIndex(xw.dpy, font->match, rune);
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}
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if (glyphidx) {
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specs[numspecs].font = font->match;
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specs[numspecs].glyph = glyphidx;
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specs[numspecs].x = (short)xp;
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specs[numspecs].y = (short)yp;
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xp += runewidth;
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numspecs++;
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continue;
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}
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/* Fallback on font cache, search the font cache for match. */
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for (f = 0; f < frclen; f++) {
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glyphidx = XftCharIndex(xw.dpy, frc[f].font, rune);
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/* Everything correct. */
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if (glyphidx && frc[f].flags == frcflags)
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break;
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/* We got a default font for a not found glyph. */
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if (!glyphidx && frc[f].flags == frcflags
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&& frc[f].unicodep == rune) {
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break;
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}
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}
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/* Nothing was found. Use fontconfig to find matching font. */
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if (f >= frclen) {
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if (!font->set)
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font->set = FcFontSort(0, font->pattern,
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1, 0, &fcres);
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fcsets[0] = font->set;
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/*
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* Nothing was found in the cache. Now use
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* some dozen of Fontconfig calls to get the
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* font for one single character.
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*
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* Xft and fontconfig are design failures.
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*/
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fcpattern = FcPatternDuplicate(font->pattern);
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fccharset = FcCharSetCreate();
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FcCharSetAddChar(fccharset, rune);
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FcPatternAddCharSet(fcpattern, FC_CHARSET,
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fccharset);
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FcPatternAddBool(fcpattern, FC_SCALABLE, 1);
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FcConfigSubstitute(0, fcpattern,
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FcMatchPattern);
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FcDefaultSubstitute(fcpattern);
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fontpattern = FcFontSetMatch(0, fcsets, 1,
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fcpattern, &fcres);
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/* Allocate memory for the new cache entry. */
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if (frclen >= frccap) {
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frccap += 16;
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frc = xrealloc(frc, frccap * sizeof(Fontcache));
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if (
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prevmode != mode
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|| ATTRCMP(glyphs[start], glyphs[i])
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|| selected(x + i, y) != selected(x + start, y)
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|| i == (len - 1)
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) {
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/* Handle 1-character wide segments and end of line */
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length = i - start;
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if (i == start) {
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length = 1;
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} else if (i == (len - 1)) {
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length = (i - start + 1);
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}
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frc[frclen].font = XftFontOpenPattern(xw.dpy,
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fontpattern);
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if (!frc[frclen].font)
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die("XftFontOpenPattern failed seeking fallback font: %s\n",
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strerror(errno));
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frc[frclen].flags = frcflags;
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frc[frclen].unicodep = rune;
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/* Shape the segment. */
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hbtransform(&shaped, font->match, glyphs, start, length);
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runewidth = win.cw * ((glyphs[start].mode & ATTR_WIDE) ? 2.0f : 1.0f);
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cluster_xp = xp; cluster_yp = yp;
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for (int code_idx = 0; code_idx < shaped.count; code_idx++) {
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int idx = shaped.glyphs[code_idx].cluster;
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glyphidx = XftCharIndex(xw.dpy, frc[frclen].font, rune);
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if (glyphs[start + idx].mode & ATTR_WDUMMY)
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continue;
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f = frclen;
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frclen++;
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/* Advance the drawing cursor if we've moved to a new cluster */
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if (code_idx > 0 && idx != shaped.glyphs[code_idx - 1].cluster) {
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xp += runewidth;
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cluster_xp = xp;
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cluster_yp = yp;
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runewidth = win.cw * ((glyphs[start + idx].mode & ATTR_WIDE) ? 2.0f : 1.0f);
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}
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FcPatternDestroy(fcpattern);
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FcCharSetDestroy(fccharset);
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if (glyphs[start + code_idx].mode & ATTR_BOXDRAW) {
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/* minor shoehorning: boxdraw uses only this ushort */
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specs[numspecs].font = font->match;
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specs[numspecs].glyph = boxdrawindex(&glyphs[start + code_idx]);
|
||||
specs[numspecs].x = xp;
|
||||
specs[numspecs].y = yp;
|
||||
numspecs++;
|
||||
} else if (shaped.glyphs[code_idx].codepoint != 0) {
|
||||
/* If symbol is found, put it into the specs. */
|
||||
specs[numspecs].font = font->match;
|
||||
specs[numspecs].glyph = shaped.glyphs[code_idx].codepoint;
|
||||
specs[numspecs].x = cluster_xp + (short)(shaped.positions[code_idx].x_offset / 64.);
|
||||
specs[numspecs].y = cluster_yp - (short)(shaped.positions[code_idx].y_offset / 64.);
|
||||
cluster_xp += shaped.positions[code_idx].x_advance / 64.;
|
||||
cluster_yp += shaped.positions[code_idx].y_advance / 64.;
|
||||
numspecs++;
|
||||
} else {
|
||||
/* If it's not found, try to fetch it through the font cache. */
|
||||
rune = glyphs[start + idx].u;
|
||||
for (f = 0; f < frclen; f++) {
|
||||
glyphidx = XftCharIndex(xw.dpy, frc[f].font, rune);
|
||||
/* Everything correct. */
|
||||
if (glyphidx && frc[f].flags == frcflags)
|
||||
break;
|
||||
/* We got a default font for a not found glyph. */
|
||||
if (!glyphidx && frc[f].flags == frcflags
|
||||
&& frc[f].unicodep == rune) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* Nothing was found. Use fontconfig to find matching font. */
|
||||
if (f >= frclen) {
|
||||
if (!font->set)
|
||||
font->set = FcFontSort(0, font->pattern,
|
||||
1, 0, &fcres);
|
||||
fcsets[0] = font->set;
|
||||
|
||||
/*
|
||||
* Nothing was found in the cache. Now use
|
||||
* some dozen of Fontconfig calls to get the
|
||||
* font for one single character.
|
||||
*
|
||||
* Xft and fontconfig are design failures.
|
||||
*/
|
||||
fcpattern = FcPatternDuplicate(font->pattern);
|
||||
fccharset = FcCharSetCreate();
|
||||
|
||||
FcCharSetAddChar(fccharset, rune);
|
||||
FcPatternAddCharSet(fcpattern, FC_CHARSET,
|
||||
fccharset);
|
||||
FcPatternAddBool(fcpattern, FC_SCALABLE, 1);
|
||||
|
||||
FcConfigSubstitute(0, fcpattern,
|
||||
FcMatchPattern);
|
||||
FcDefaultSubstitute(fcpattern);
|
||||
|
||||
fontpattern = FcFontSetMatch(0, fcsets, 1,
|
||||
fcpattern, &fcres);
|
||||
|
||||
/* Allocate memory for the new cache entry. */
|
||||
if (frclen >= frccap) {
|
||||
frccap += 16;
|
||||
frc = xrealloc(frc, frccap * sizeof(Fontcache));
|
||||
}
|
||||
|
||||
frc[frclen].font = XftFontOpenPattern(xw.dpy,
|
||||
fontpattern);
|
||||
if (!frc[frclen].font)
|
||||
die("XftFontOpenPattern failed seeking fallback font: %s\n",
|
||||
strerror(errno));
|
||||
frc[frclen].flags = frcflags;
|
||||
frc[frclen].unicodep = rune;
|
||||
|
||||
glyphidx = XftCharIndex(xw.dpy, frc[frclen].font, rune);
|
||||
|
||||
f = frclen;
|
||||
frclen++;
|
||||
|
||||
FcPatternDestroy(fcpattern);
|
||||
FcCharSetDestroy(fccharset);
|
||||
}
|
||||
|
||||
specs[numspecs].font = frc[f].font;
|
||||
specs[numspecs].glyph = glyphidx;
|
||||
specs[numspecs].x = (short)xp;
|
||||
specs[numspecs].y = (short)yp;
|
||||
numspecs++;
|
||||
}
|
||||
}
|
||||
|
||||
/* Cleanup and get ready for next segment. */
|
||||
hbcleanup(&shaped);
|
||||
start = i;
|
||||
|
||||
/* Determine font for glyph if different from previous glyph. */
|
||||
if (prevmode != mode) {
|
||||
prevmode = mode;
|
||||
xresetfontsettings(mode, &font, &frcflags);
|
||||
yp = winy + font->ascent;
|
||||
}
|
||||
}
|
||||
|
||||
specs[numspecs].font = frc[f].font;
|
||||
specs[numspecs].glyph = glyphidx;
|
||||
specs[numspecs].x = (short)xp;
|
||||
specs[numspecs].y = (short)yp;
|
||||
xp += runewidth;
|
||||
numspecs++;
|
||||
}
|
||||
|
||||
hbcleanup(&shaped);
|
||||
return numspecs;
|
||||
}
|
||||
|
||||
@@ -1522,14 +1575,17 @@ xdrawglyph(Glyph g, int x, int y)
|
||||
}
|
||||
|
||||
void
|
||||
xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
|
||||
xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og, Line line, int len)
|
||||
{
|
||||
Color drawcol;
|
||||
|
||||
/* remove the old cursor */
|
||||
if (selected(ox, oy))
|
||||
og.mode ^= ATTR_REVERSE;
|
||||
xdrawglyph(og, ox, oy);
|
||||
|
||||
/* Redraw the line where cursor was previously.
|
||||
* It will restore the ligatures broken by the cursor. */
|
||||
xdrawline(line, 0, oy, len);
|
||||
|
||||
if (IS_SET(MODE_HIDE))
|
||||
return;
|
||||
@@ -1663,18 +1719,16 @@ xdrawline(Line line, int x1, int y1, int x2)
|
||||
won't get truncated (#223) */
|
||||
for (int dmode = DRAW_BG; dmode <= DRAW_FG; dmode <<= 1) {
|
||||
specs = xw.specbuf;
|
||||
numspecs = numspecs_cached;
|
||||
i = ox = 0;
|
||||
for (x = x1; x < x2 && i < numspecs; x++) {
|
||||
for (x = x1; x < x2; x++) {
|
||||
new = line[x];
|
||||
if (new.mode == ATTR_WDUMMY)
|
||||
continue;
|
||||
if (selected(x, y1))
|
||||
new.mode ^= ATTR_REVERSE;
|
||||
if (i > 0 && ATTRCMP(base, new)) {
|
||||
xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
|
||||
specs += i;
|
||||
numspecs -= i;
|
||||
if ((i > 0) && ATTRCMP(base, new)) {
|
||||
numspecs = xmakeglyphfontspecs(specs, &line[ox], x - ox, ox, y1);
|
||||
xdrawglyphfontspecs(specs, base, numspecs, ox, y1);
|
||||
i = 0;
|
||||
}
|
||||
if (i == 0) {
|
||||
@@ -1683,8 +1737,10 @@ xdrawline(Line line, int x1, int y1, int x2)
|
||||
}
|
||||
i++;
|
||||
}
|
||||
if (i > 0)
|
||||
xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
|
||||
if (i > 0) {
|
||||
numspecs = xmakeglyphfontspecs(specs, &line[ox], x2 - ox, ox, y1);
|
||||
xdrawglyphfontspecs(specs, base, numspecs, ox, y1);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user