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ligatures: upgrading

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Bakkeby 2024-03-07 15:34:21 +01:00
parent 677c2da0be
commit 0f50ef072c
4 changed files with 326 additions and 185 deletions
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101
hb.c
View File

@ -11,6 +11,7 @@
#include "hb.h" #include "hb.h"
#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 } #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 }
#define BUFFER_STEP 256
hb_font_t *hbfindfont(XftFont *match); hb_font_t *hbfindfont(XftFont *match);
@ -19,74 +20,109 @@ typedef struct {
hb_font_t *font; hb_font_t *font;
} HbFontMatch; } HbFontMatch;
static int hbfontslen = 0; typedef struct {
static HbFontMatch *hbfontcache = NULL; size_t capacity;
HbFontMatch *fonts;
} HbFontCache;
static HbFontCache hbfontcache = { 0, NULL };
typedef struct {
size_t capacity;
Rune *runes;
} RuneBuffer;
static RuneBuffer hbrunebuffer = { 0, NULL };
static hb_buffer_t *hbbuffer;
/* /*
* Poplulate the array with a list of font features, wrapped in FEATURE macro, * Poplulate the array with a list of font features, wrapped in FEATURE macro,
* e. g. * e. g.
* FEATURE('c', 'a', 'l', 't'), FEATURE('d', 'l', 'i', 'g') * FEATURE('c', 'a', 'l', 't'), FEATURE('d', 'l', 'i', 'g')
*/ */
hb_feature_t features[] = { 0 }; hb_feature_t features[] = { };
void void
hbunloadfonts() hbcreatebuffer(void)
{ {
for (int i = 0; i < hbfontslen; i++) { hbbuffer = hb_buffer_create();
hb_font_destroy(hbfontcache[i].font);
XftUnlockFace(hbfontcache[i].match);
} }
if (hbfontcache != NULL) { void
free(hbfontcache); hbdestroybuffer(void)
hbfontcache = NULL; {
hb_buffer_destroy(hbbuffer);
} }
hbfontslen = 0;
void
hbunloadfonts(void)
{
for (int i = 0; i < hbfontcache.capacity; i++) {
hb_font_destroy(hbfontcache.fonts[i].font);
XftUnlockFace(hbfontcache.fonts[i].match);
}
if (hbfontcache.fonts != NULL) {
free(hbfontcache.fonts);
hbfontcache.fonts = NULL;
}
hbfontcache.capacity = 0;
} }
hb_font_t * hb_font_t *
hbfindfont(XftFont *match) hbfindfont(XftFont *match)
{ {
for (int i = 0; i < hbfontslen; i++) { for (int i = 0; i < hbfontcache.capacity; i++) {
if (hbfontcache[i].match == match) if (hbfontcache.fonts[i].match == match)
return hbfontcache[i].font; return hbfontcache.fonts[i].font;
} }
/* Font not found in cache, caching it now. */ /* Font not found in cache, caching it now. */
hbfontcache = realloc(hbfontcache, sizeof(HbFontMatch) * (hbfontslen + 1)); hbfontcache.fonts = realloc(hbfontcache.fonts, sizeof(HbFontMatch) * (hbfontcache.capacity + 1));
FT_Face face = XftLockFace(match); FT_Face face = XftLockFace(match);
hb_font_t *font = hb_ft_font_create(face, NULL); hb_font_t *font = hb_ft_font_create(face, NULL);
if (font == NULL) if (font == NULL)
die("Failed to load Harfbuzz font."); die("Failed to load Harfbuzz font.");
hbfontcache[hbfontslen].match = match; hbfontcache.fonts[hbfontcache.capacity].match = match;
hbfontcache[hbfontslen].font = font; hbfontcache.fonts[hbfontcache.capacity].font = font;
hbfontslen += 1; hbfontcache.capacity += 1;
return font; return font;
} }
void hbtransform(HbTransformData *data, XftFont *xfont, const Glyph *glyphs, int start, int length) { void
Rune rune; hbtransform(HbTransformData *data, XftFont *xfont, const Glyph *glyphs, int start, int length)
ushort mode = USHRT_MAX; {
uint32_t mode;
unsigned int glyph_count; unsigned int glyph_count;
int i, end = start + length; int rune_idx, glyph_idx, end = start + length;
hb_buffer_t *buffer = hbbuffer;
hb_font_t *font = hbfindfont(xfont); hb_font_t *font = hbfindfont(xfont);
if (font == NULL) if (font == NULL) {
data->count = 0;
return; return;
}
hb_buffer_t *buffer = hb_buffer_create(); hb_buffer_reset(buffer);
hb_buffer_set_direction(buffer, HB_DIRECTION_LTR); hb_buffer_set_direction(buffer, HB_DIRECTION_LTR);
hb_buffer_set_cluster_level(buffer, HB_BUFFER_CLUSTER_LEVEL_MONOTONE_CHARACTERS);
/* Resize the buffer if required length is larger. */
if (hbrunebuffer.capacity < length) {
hbrunebuffer.capacity = (length / BUFFER_STEP + 1) * BUFFER_STEP;
hbrunebuffer.runes = realloc(hbrunebuffer.runes, hbrunebuffer.capacity * sizeof(Rune));
}
/* Fill buffer with codepoints. */ /* Fill buffer with codepoints. */
for (i = start; i < end; i++) { for (rune_idx = 0, glyph_idx = start; glyph_idx < end; glyph_idx++, rune_idx++) {
rune = glyphs[i].u; hbrunebuffer.runes[rune_idx] = glyphs[glyph_idx].u;
mode = glyphs[i].mode; mode = glyphs[glyph_idx].mode;
if (mode & ATTR_WDUMMY) if (mode & ATTR_WDUMMY)
rune = 0x0020; hbrunebuffer.runes[rune_idx] = 0x0020;
hb_buffer_add_codepoints(buffer, &rune, 1, 0, 1);
} }
hb_buffer_add_codepoints(buffer, hbrunebuffer.runes, length, 0, length);
/* Shape the segment. */ /* Shape the segment. */
hb_shape(font, buffer, features, sizeof(features)/sizeof(hb_feature_t)); hb_shape(font, buffer, features, sizeof(features)/sizeof(hb_feature_t));
@ -95,14 +131,9 @@ void hbtransform(HbTransformData *data, XftFont *xfont, const Glyph *glyphs, int
hb_glyph_info_t *info = hb_buffer_get_glyph_infos(buffer, &glyph_count); hb_glyph_info_t *info = hb_buffer_get_glyph_infos(buffer, &glyph_count);
hb_glyph_position_t *pos = hb_buffer_get_glyph_positions(buffer, &glyph_count); hb_glyph_position_t *pos = hb_buffer_get_glyph_positions(buffer, &glyph_count);
/** Fill the output. */ /* Fill the output. */
data->buffer = buffer; data->buffer = buffer;
data->glyphs = info; data->glyphs = info;
data->positions = pos; data->positions = pos;
data->count = glyph_count; data->count = glyph_count;
} }
void hbcleanup(HbTransformData *data) {
hb_buffer_destroy(data->buffer);
memset(data, 0, sizeof(HbTransformData));
}

5
hb.h
View File

@ -9,6 +9,7 @@ typedef struct {
unsigned int count; unsigned int count;
} HbTransformData; } HbTransformData;
void hbunloadfonts(); void hbcreatebuffer(void);
void hbdestroybuffer(void);
void hbunloadfonts(void);
void hbtransform(HbTransformData *, XftFont *, const Glyph *, int, int); void hbtransform(HbTransformData *, XftFont *, const Glyph *, int, int);
void hbcleanup(HbTransformData *);

14
st.h
View File

@ -142,6 +142,17 @@ typedef struct {
typedef Glyph *Line; typedef Glyph *Line;
#if LIGATURES_PATCH
typedef struct {
int ox;
#if WIDE_GLYPHS_PATCH
int charlen;
#endif // WIDE_GLYPHS_PATCH
int numspecs;
Glyph base;
} GlyphFontSeq;
#endif // LIGATURES_PATCH
typedef struct { typedef struct {
Glyph attr; /* current char attributes */ Glyph attr; /* current char attributes */
int x; int x;
@ -216,6 +227,9 @@ typedef struct {
Window win; Window win;
Drawable buf; Drawable buf;
GlyphFontSpec *specbuf; /* font spec buffer used for rendering */ GlyphFontSpec *specbuf; /* font spec buffer used for rendering */
#if LIGATURES_PATCH
GlyphFontSeq *specseq;
#endif // LIGATURES_PATCH
Atom xembed, wmdeletewin, netwmname, netwmiconname, netwmpid; Atom xembed, wmdeletewin, netwmname, netwmiconname, netwmpid;
#if FULLSCREEN_PATCH #if FULLSCREEN_PATCH
Atom netwmstate, netwmfullscreen; Atom netwmstate, netwmfullscreen;

225
x.c
View File

@ -81,12 +81,12 @@ static void zoomreset(const Arg *);
static inline ushort sixd_to_16bit(int); static inline ushort sixd_to_16bit(int);
static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int); static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int);
#if WIDE_GLYPHS_PATCH #if WIDE_GLYPHS_PATCH
static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int, int); static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int, int, int);
#else #else
static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int); static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int);
#endif // WIDE_GLYPHS_PATCH #endif // WIDE_GLYPHS_PATCH
#if LIGATURES_PATCH #if LIGATURES_PATCH
static void xresetfontsettings(ushort mode, Font **font, int *frcflags); static inline void xresetfontsettings(uint32_t mode, Font **font, int *frcflags);
#endif // LIGATURES_PATCH #endif // LIGATURES_PATCH
static void xdrawglyph(Glyph, int, int); static void xdrawglyph(Glyph, int, int);
static void xclear(int, int, int, int); static void xclear(int, int, int, int);
@ -907,7 +907,12 @@ xresize(int col, int row)
xclear(0, 0, win.w, win.h); xclear(0, 0, win.w, win.h);
/* resize to new width */ /* resize to new width */
#if LIGATURES_PATCH
xw.specbuf = xrealloc(xw.specbuf, col * sizeof(GlyphFontSpec) * 4);
xw.specseq = xrealloc(xw.specseq, col * sizeof(GlyphFontSeq));
#else
xw.specbuf = xrealloc(xw.specbuf, col * sizeof(GlyphFontSpec)); xw.specbuf = xrealloc(xw.specbuf, col * sizeof(GlyphFontSpec));
#endif // LIGATURES_PATCH
} }
ushort ushort
@ -1524,7 +1529,12 @@ xinit(int cols, int rows)
XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h); XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h);
/* font spec buffer */ /* font spec buffer */
#if LIGATURES_PATCH
xw.specbuf = xmalloc(cols * sizeof(GlyphFontSpec) * 4);
xw.specseq = xmalloc(cols * sizeof(GlyphFontSeq));
#else
xw.specbuf = xmalloc(cols * sizeof(GlyphFontSpec)); xw.specbuf = xmalloc(cols * sizeof(GlyphFontSpec));
#endif // LIGATURES_PATCH
/* Xft rendering context */ /* Xft rendering context */
xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap); xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
@ -1634,7 +1644,7 @@ xinit(int cols, int rows)
#if LIGATURES_PATCH #if LIGATURES_PATCH
void void
xresetfontsettings(ushort mode, Font **font, int *frcflags) xresetfontsettings(uint32_t mode, Font **font, int *frcflags)
{ {
*font = &dc.font; *font = &dc.font;
if ((mode & ATTR_ITALIC) && (mode & ATTR_BOLD)) { if ((mode & ATTR_ITALIC) && (mode & ATTR_BOLD)) {
@ -1661,28 +1671,34 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
ushort mode, prevmode = USHRT_MAX; ushort mode, prevmode = USHRT_MAX;
Font *font = &dc.font; Font *font = &dc.font;
int frcflags = FRC_NORMAL; int frcflags = FRC_NORMAL;
float runewidth = win.cw; float runewidth = win.cw * ((glyphs[0].mode & ATTR_WIDE) ? 2.0f : 1.0f);
Rune rune; Rune rune;
FT_UInt glyphidx; FT_UInt glyphidx;
FcResult fcres; FcResult fcres;
FcPattern *fcpattern, *fontpattern; FcPattern *fcpattern, *fontpattern;
FcFontSet *fcsets[] = { NULL }; FcFontSet *fcsets[] = { NULL };
FcCharSet *fccharset; FcCharSet *fccharset;
int i, f, numspecs = 0; int f, numspecs = 0;
#if LIGATURES_PATCH #if LIGATURES_PATCH
int length = 0, start = 0; int i;
HbTransformData shaped = { 0 }; float cluster_xp, cluster_yp;
HbTransformData shaped;
/* Initial values. */ /* Initial values. */
mode = prevmode = glyphs[0].mode & ~ATTR_WRAP; xresetfontsettings(glyphs[0].mode, &font, &frcflags);
xresetfontsettings(mode, &font, &frcflags); xp = winx, yp = winy + font->ascent + win.cyo;
cluster_xp = xp; cluster_yp = yp;
/* Shape the segment. */
hbtransform(&shaped, font->match, glyphs, 0, len);
#endif // LIGATURES_PATCH #endif // LIGATURES_PATCH
#if VERTCENTER_PATCH #if LIGATURES_PATCH
for (int code_idx = 0; code_idx < shaped.count; code_idx++)
#elif VERTCENTER_PATCH
for (i = 0, xp = winx, yp = winy + font->ascent + win.cyo; i < len; ++i) for (i = 0, xp = winx, yp = winy + font->ascent + win.cyo; i < len; ++i)
#else #else
for (i = 0, xp = winx, yp = winy + font->ascent; i < len; ++i) for (i = 0, xp = winx, yp = winy + font->ascent; i < len; ++i)
#endif // VERTCENTER_PATCH #endif // LIGATURES_PATCH | VERTCENTER_PATCH
{ {
/* Fetch rune and mode for current glyph. */ /* Fetch rune and mode for current glyph. */
#if VIM_BROWSE_PATCH #if VIM_BROWSE_PATCH
@ -1691,7 +1707,7 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
rune = g.u; rune = g.u;
mode = g.mode; mode = g.mode;
#elif LIGATURES_PATCH #elif LIGATURES_PATCH
mode = glyphs[i].mode & ~ATTR_WRAP; int idx = shaped.glyphs[code_idx].cluster;
#else #else
rune = glyphs[i].u; rune = glyphs[i].u;
mode = glyphs[i].mode; mode = glyphs[i].mode;
@ -1699,53 +1715,39 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
/* Skip dummy wide-character spacing. */ /* Skip dummy wide-character spacing. */
#if LIGATURES_PATCH #if LIGATURES_PATCH
if (mode & ATTR_WDUMMY) if (glyphs[idx].mode & ATTR_WDUMMY)
continue; continue;
if ( /* Advance the drawing cursor if we've moved to a new cluster */
prevmode != mode if (code_idx > 0 && idx != shaped.glyphs[code_idx - 1].cluster) {
|| ATTRCMP(glyphs[start], glyphs[i]) xp += runewidth;
|| selected(x + i, y) != selected(x + start, y) cluster_xp = xp;
|| i == (len - 1) cluster_yp = yp;
) {
/* Handle 1-character wide segments and end of line */
length = i - start;
if (i == start) {
length = 1;
} else if (i == (len - 1)) {
length = (i - start + 1);
} }
/* Shape the segment. */
hbtransform(&shaped, font->match, glyphs, start, length);
for (int code_idx = 0; code_idx < shaped.count; code_idx++) {
rune = glyphs[start + code_idx].u;
runewidth = win.cw * ((glyphs[start + code_idx].mode & ATTR_WIDE) ? 2.0f : 1.0f);
if (glyphs[start + code_idx].mode & ATTR_WDUMMY)
continue;
#if BOXDRAW_PATCH #if BOXDRAW_PATCH
if (glyphs[start + code_idx].mode & ATTR_BOXDRAW) { if (glyphs[idx].mode & ATTR_BOXDRAW) {
/* minor shoehorning: boxdraw uses only this ushort */ /* minor shoehorning: boxdraw uses only this ushort */
specs[numspecs].font = font->match; specs[numspecs].font = font->match;
specs[numspecs].glyph = boxdrawindex(&glyphs[start + code_idx]); specs[numspecs].glyph = boxdrawindex(&glyphs[idx]);
specs[numspecs].x = xp; specs[numspecs].x = xp;
specs[numspecs].y = yp; specs[numspecs].y = yp;
xp += runewidth;
numspecs++; numspecs++;
} else } else if (shaped.glyphs[code_idx].codepoint != 0) {
#endif // BOXDRAW_PATCH #else
if (shaped.glyphs[code_idx].codepoint != 0) { if (shaped.glyphs[code_idx].codepoint != 0) {
#endif // BOXDRAW_PATCH
/* If symbol is found, put it into the specs. */ /* If symbol is found, put it into the specs. */
specs[numspecs].font = font->match; specs[numspecs].font = font->match;
specs[numspecs].glyph = shaped.glyphs[code_idx].codepoint; specs[numspecs].glyph = shaped.glyphs[code_idx].codepoint;
specs[numspecs].x = xp + (short)shaped.positions[code_idx].x_offset; specs[numspecs].x = cluster_xp + (short)(shaped.positions[code_idx].x_offset / 64.);
specs[numspecs].y = yp + (short)shaped.positions[code_idx].y_offset; specs[numspecs].y = cluster_yp - (short)(shaped.positions[code_idx].y_offset / 64.);
xp += runewidth; cluster_xp += shaped.positions[code_idx].x_advance / 64.;
cluster_yp += shaped.positions[code_idx].y_advance / 64.;
numspecs++; numspecs++;
} else { } else {
/* If it's not found, try to fetch it through the font cache. */ /* If it's not found, try to fetch it through the font cache. */
rune = glyphs[idx].u;
for (f = 0; f < frclen; f++) { for (f = 0; f < frclen; f++) {
glyphidx = XftCharIndex(xw.dpy, frc[f].font, rune); glyphidx = XftCharIndex(xw.dpy, frc[f].font, rune);
/* Everything correct. */ /* Everything correct. */
@ -1809,22 +1811,8 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
specs[numspecs].glyph = glyphidx; specs[numspecs].glyph = glyphidx;
specs[numspecs].x = (short)xp; specs[numspecs].x = (short)xp;
specs[numspecs].y = (short)yp; specs[numspecs].y = (short)yp;
xp += runewidth;
numspecs++; 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;
}
}
#else // !LIGATURES_PATCH #else // !LIGATURES_PATCH
if (mode == ATTR_WDUMMY) if (mode == ATTR_WDUMMY)
continue; continue;
@ -1997,18 +1985,22 @@ static int getSlope (int x, int iPoint, int waveWidth)
void void
#if WIDE_GLYPHS_PATCH #if WIDE_GLYPHS_PATCH
xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y, int dmode) xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y, int dmode, int charlen)
#else #else
xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y) xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y)
#endif // WIDE_GLYPHS_PATCH #endif // WIDE_GLYPHS_PATCH
{ {
#if WIDE_GLYPHS_PATCH
int width = charlen * win.cw;
#else
int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1); int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1);
int width = charlen * win.cw;
#endif // WIDE_GLYPHS_PATCH
#if ANYSIZE_PATCH #if ANYSIZE_PATCH
int winx = win.hborderpx + x * win.cw, winy = win.vborderpx + y * win.ch; int winx = win.hborderpx + x * win.cw, winy = win.vborderpx + y * win.ch;
#else #else
int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch; int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch;
#endif // ANYSIZE_PATCH #endif // ANYSIZE_PATCH
int width = charlen * win.cw;
Color *fg, *bg, *temp, revfg, revbg, truefg, truebg; Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
XRenderColor colfg, colbg; XRenderColor colfg, colbg;
XRectangle r; XRectangle r;
@ -2584,6 +2576,7 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
#endif // WIDE_GLYPHS_PATCH #endif // WIDE_GLYPHS_PATCH
#if OPENURLONCLICK_PATCH #if OPENURLONCLICK_PATCH
/* underline url (openurlonclick patch) */
if (url_draw && y >= url_y1 && y <= url_y2) { if (url_draw && y >= url_y1 && y <= url_y2) {
int x1 = (y == url_y1) ? url_x1 : 0; int x1 = (y == url_y1) ? url_x1 : 0;
int x2 = (y == url_y2) ? MIN(url_x2, term.col-1) : url_maxcol; int x2 = (y == url_y2) ? MIN(url_x2, term.col-1) : url_maxcol;
@ -2617,7 +2610,7 @@ xdrawglyph(Glyph g, int x, int y)
numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y); numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y);
#if WIDE_GLYPHS_PATCH #if WIDE_GLYPHS_PATCH
xdrawglyphfontspecs(&spec, g, numspecs, x, y, DRAW_BG | DRAW_FG); xdrawglyphfontspecs(&spec, g, numspecs, x, y, DRAW_BG | DRAW_FG, (g.mode & ATTR_WIDE) ? 2 : 1);
#else #else
xdrawglyphfontspecs(&spec, g, numspecs, x, y); xdrawglyphfontspecs(&spec, g, numspecs, x, y);
#endif // WIDE_GLYPHS_PATCH #endif // WIDE_GLYPHS_PATCH
@ -2642,6 +2635,7 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
#else #else
og.mode ^= ATTR_REVERSE; og.mode ^= ATTR_REVERSE;
#endif // SELECTION_COLORS_PATCH #endif // SELECTION_COLORS_PATCH
#if LIGATURES_PATCH #if LIGATURES_PATCH
/* Redraw the line where cursor was previously. /* Redraw the line where cursor was previously.
* It will restore the ligatures broken by the cursor. */ * It will restore the ligatures broken by the cursor. */
@ -2918,15 +2912,102 @@ xstartdraw(void)
return IS_SET(MODE_VISIBLE); return IS_SET(MODE_VISIBLE);
} }
#if WIDE_GLYPHS_PATCH && LIGATURES_PATCH
void
xdrawline(Line line, int x1, int y1, int x2)
{
int i, j, x, ox, numspecs;
Glyph new;
GlyphFontSeq *seq = xw.specseq;
XftGlyphFontSpec *specs = xw.specbuf;
/* Draw line in 2 passes: background and foreground. This way wide glyphs
won't get truncated (#223) */
/* background */
i = j = ox = 0;
for (x = x1; x < x2; x++) {
new = line[x];
if (new.mode == ATTR_WDUMMY)
continue;
if (selected(x, y1))
#if SELECTION_COLORS_PATCH
new.mode |= ATTR_SELECTED;
#else
new.mode ^= ATTR_REVERSE;
#endif // SELECTION_COLORS_PATCH
if ((i > 0) && ATTRCMP(seq[j].base, new)) {
numspecs = xmakeglyphfontspecs(specs, &line[ox], x - ox, ox, y1);
xdrawglyphfontspecs(specs, seq[j].base, numspecs, ox, y1, DRAW_BG, x - ox);
seq[j].charlen = x - ox;
seq[j++].numspecs = numspecs;
specs += numspecs;
i = 0;
}
if (i == 0) {
ox = x;
seq[j].ox= ox;
seq[j].base = new;
}
i++;
}
if (i > 0) {
numspecs = xmakeglyphfontspecs(specs, &line[ox], x2 - ox, ox, y1);
xdrawglyphfontspecs(specs, seq[j].base, numspecs, ox, y1, DRAW_BG, x2 - ox);
seq[j].charlen = x2 - ox;
seq[j++].numspecs = numspecs;
}
/* foreground */
specs = xw.specbuf;
for (i = 0; i < j; i++) {
xdrawglyphfontspecs(specs, seq[i].base, seq[i].numspecs, seq[i].ox, y1, DRAW_FG, seq[i].charlen);
specs += seq[i].numspecs;
}
}
#elif LIGATURES_PATCH
void void
xdrawline(Line line, int x1, int y1, int x2) xdrawline(Line line, int x1, int y1, int x2)
{ {
int i, x, ox, numspecs; int i, x, ox, numspecs;
#if WIDE_GLYPHS_PATCH
int numspecs_cached;
#endif // WIDE_GLYPHS_PATCH
Glyph base, new; Glyph base, new;
#if WIDE_GLYPHS_PATCH
XftGlyphFontSpec *specs = xw.specbuf;
numspecs = xmakeglyphfontspecs(specs, &line[x1], x2 - x1, x1, y1);
i = ox = 0;
for (x = x1; x < x2; x++) {
new = line[x];
if (new.mode == ATTR_WDUMMY)
continue;
if (selected(x, y1))
#if SELECTION_COLORS_PATCH
new.mode |= ATTR_SELECTED;
#else
new.mode ^= ATTR_REVERSE;
#endif // SELECTION_COLORS_PATCH
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) {
ox = x;
base = new;
}
i++;
}
if (i > 0) {
numspecs = xmakeglyphfontspecs(specs, &line[ox], x2 - ox, ox, y1);
xdrawglyphfontspecs(specs, base, numspecs, ox, y1);
}
}
#elif WIDE_GLYPHS_PATCH
void
xdrawline(Line line, int x1, int y1, int x2)
{
int i, x, ox, numspecs, numspecs_cached;
Glyph base, new;
XftGlyphFontSpec *specs; XftGlyphFontSpec *specs;
numspecs_cached = xmakeglyphfontspecs(xw.specbuf, &line[x1], x2 - x1, x1, y1); numspecs_cached = xmakeglyphfontspecs(xw.specbuf, &line[x1], x2 - x1, x1, y1);
@ -2965,7 +3046,14 @@ xdrawline(Line line, int x1, int y1, int x2)
if (i > 0) if (i > 0)
xdrawglyphfontspecs(specs, base, i, ox, y1, dmode); xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
} }
#else }
#else // !WIDE_GLYPHS_PATCH and !LIGATURES_PATCH
void
xdrawline(Line line, int x1, int y1, int x2)
{
int i, x, ox, numspecs;
Glyph base, new;
XftGlyphFontSpec *specs = xw.specbuf; XftGlyphFontSpec *specs = xw.specbuf;
numspecs = xmakeglyphfontspecs(specs, &line[x1], x2 - x1, x1, y1); numspecs = xmakeglyphfontspecs(specs, &line[x1], x2 - x1, x1, y1);
@ -2997,8 +3085,8 @@ xdrawline(Line line, int x1, int y1, int x2)
} }
if (i > 0) if (i > 0)
xdrawglyphfontspecs(specs, base, i, ox, y1); xdrawglyphfontspecs(specs, base, i, ox, y1);
#endif // WIDE_GLYPHS_PATCH
} }
#endif // WIDE_GLYPHS_PATCH | LIGATURES_PATCH
void void
xfinishdraw(void) xfinishdraw(void)
@ -3746,6 +3834,10 @@ run:
if (!(xw.dpy = XOpenDisplay(NULL))) if (!(xw.dpy = XOpenDisplay(NULL)))
die("Can't open display\n"); die("Can't open display\n");
#if LIGATURES_PATCH
hbcreatebuffer();
#endif // LIGATURES_PATCH
config_init(xw.dpy); config_init(xw.dpy);
#endif // XRESOURCES_PATCH #endif // XRESOURCES_PATCH
cols = MAX(cols, 1); cols = MAX(cols, 1);
@ -3765,6 +3857,9 @@ run:
die("Can't change to working directory %s\n", opt_dir); die("Can't change to working directory %s\n", opt_dir);
#endif // WORKINGDIR_PATCH #endif // WORKINGDIR_PATCH
run(); run();
#if LIGATURES_PATCH
hbdestroybuffer();
#endif // LIGATURES_PATCH
return 0; return 0;
} }