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x.c
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x.c
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/* See LICENSE for license details. */
#include <errno.h>
#include <locale.h>
#include <signal.h>
#include <stdint.h>
#include <sys/select.h>
#include <time.h>
#include <unistd.h>
#include <libgen.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/cursorfont.h>
#include <X11/keysym.h>
#include <X11/Xft/Xft.h>
#include <X11/XKBlib.h>
#include <X11/extensions/Xrender.h>
#include <math.h>
#include <glad/glad.h>
#include <glad/glad_glx.h>
#include <fontconfig/fontconfig.h>
#include <fontconfig/fcfreetype.h>
#include "arg.h"
#define Glyph Glyph_
#define Font Font_
#include "win.h"
#include "st.h"
#include "rendering.h"
/* Pull font size in from config.h */
extern int font_size;
/* XEMBED messages */
#define XEMBED_FOCUS_IN 4
#define XEMBED_FOCUS_OUT 5
/* macros */
#define TRUERED(x) (((x) & 0xff0000) >> 8)
#define TRUEGREEN(x) (((x) & 0xff00))
#define TRUEBLUE(x) (((x) & 0xff) << 8)
typedef XftDraw *Draw;
typedef XftColor Color;
/* Purely graphic info */
typedef struct {
Display *dpy;
Colormap cmap;
Window win;
Atom xembed, wmdeletewin, netwmname, netwmpid;
XIM xim;
XIC xic;
GLXFBConfig * fbconf;
XVisualInfo * vi;
Visual *vis;
XSetWindowAttributes attrs;
int scr;
int isfixed; /* is fixed geometry? */
int l, t; /* left and top offset */
int gm; /* geometry mask */
} XWindow;
typedef struct {
Atom xtarget;
} XSelection;
/* Font structure */
typedef struct {
int height;
int width;
int ascent;
int descent;
int badslant;
int badweight;
short lbearing;
short rbearing;
FcFontSet *set;
FcPattern *pattern;
FT_Face face;
struct atlas * atlas;
} Font;
/* Drawing Context */
typedef struct {
Color *col;
size_t collen;
Font font, bfont, ifont, ibfont;
GLXContext glc;
FT_Library lib;
FcConfig * cfg;
struct render_context * rc;
struct glyph_spec * specbuf;
} DC;
static inline ushort sixd_to_16bit(int);
static int xmakeglyphfontspecs(struct glyph_spec *, const Glyph *, int, int, int);
static void xdrawglyphfontspecs(struct glyph_spec *, Glyph, int, int, int);
static void xdrawglyph(Glyph, int, int);
static void xclear(int, int, int, int);
static void xdrawcursor(void);
static int xgeommasktogravity(int);
static int xloadfont(Font *, FcPattern *);
static void xunloadfont(Font *);
static void convert_color(XRenderColor * in, struct color * out);
static void gl_draw_rect(Color *, int x, int y, int w, int h);
static void gl_draw_glyph(Color *, struct glyph_spec *);
static void gl_draw_glyphs(Color *, struct glyph_spec *, int);
static void expose(XEvent *);
static void visibility(XEvent *);
static void unmap(XEvent *);
static void kpress(XEvent *);
static void cmessage(XEvent *);
static void resize(XEvent *);
static void focus(XEvent *);
static void brelease(XEvent *);
static void bpress(XEvent *);
static void bmotion(XEvent *);
static void propnotify(XEvent *);
static void selnotify(XEvent *);
static void selclear_(XEvent *);
static void selrequest(XEvent *);
static void selcopy(Time);
static void getbuttoninfo(XEvent *);
static void mousereport(XEvent *);
static void (*handler[LASTEvent])(XEvent *) = {
[KeyPress] = kpress,
[ClientMessage] = cmessage,
[ConfigureNotify] = resize,
[VisibilityNotify] = visibility,
[UnmapNotify] = unmap,
[Expose] = expose,
[FocusIn] = focus,
[FocusOut] = focus,
[MotionNotify] = bmotion,
[ButtonPress] = bpress,
[ButtonRelease] = brelease,
/*
* Uncomment if you want the selection to disappear when you select something
* different in another window.
*/
/* [SelectionClear] = selclear_, */
[SelectionNotify] = selnotify,
/*
* PropertyNotify is only turned on when there is some INCR transfer happening
* for the selection retrieval.
*/
[PropertyNotify] = propnotify,
[SelectionRequest] = selrequest,
};
/* Globals */
static DC dc;
static XWindow xw;
static XSelection xsel;
/* Font Ring Cache */
enum {
FRC_NORMAL,
FRC_ITALIC,
FRC_BOLD,
FRC_ITALICBOLD
};
typedef struct {
struct atlas * atlas;
int flags;
Rune unicodep;
} Fontcache;
/* Fontcache is an array now. A new font will be appended to the array. */
static Fontcache frc[16];
static int frclen = 0;
void
getbuttoninfo(XEvent *e)
{
int type;
uint state = e->xbutton.state & ~(Button1Mask | forceselmod);
sel.alt = IS_SET(MODE_ALTSCREEN);
sel.oe.x = x2col(e->xbutton.x);
sel.oe.y = y2row(e->xbutton.y);
selnormalize();
sel.type = SEL_REGULAR;
for (type = 1; type < selmaskslen; ++type) {
if (match(selmasks[type], state)) {
sel.type = type;
break;
}
}
}
void
mousereport(XEvent *e)
{
int x = x2col(e->xbutton.x), y = y2row(e->xbutton.y),
button = e->xbutton.button, state = e->xbutton.state,
len;
char buf[40];
static int ox, oy;
/* from urxvt */
if (e->xbutton.type == MotionNotify) {
if (x == ox && y == oy)
return;
if (!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY))
return;
/* MOUSE_MOTION: no reporting if no button is pressed */
if (IS_SET(MODE_MOUSEMOTION) && oldbutton == 3)
return;
button = oldbutton + 32;
ox = x;
oy = y;
} else {
if (!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) {
button = 3;
} else {
button -= Button1;
if (button >= 3)
button += 64 - 3;
}
if (e->xbutton.type == ButtonPress) {
oldbutton = button;
ox = x;
oy = y;
} else if (e->xbutton.type == ButtonRelease) {
oldbutton = 3;
/* MODE_MOUSEX10: no button release reporting */
if (IS_SET(MODE_MOUSEX10))
return;
if (button == 64 || button == 65)
return;
}
}
if (!IS_SET(MODE_MOUSEX10)) {
button += ((state & ShiftMask ) ? 4 : 0)
+ ((state & Mod4Mask ) ? 8 : 0)
+ ((state & ControlMask) ? 16 : 0);
}
if (IS_SET(MODE_MOUSESGR)) {
len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
button, x+1, y+1,
e->xbutton.type == ButtonRelease ? 'm' : 'M');
} else if (x < 223 && y < 223) {
len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
32+button, 32+x+1, 32+y+1);
} else {
return;
}
ttywrite(buf, len);
}
void
bpress(XEvent *e)
{
struct timespec now;
MouseShortcut *ms;
if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
mousereport(e);
return;
}
for (ms = mshortcuts; ms < mshortcuts + mshortcutslen; ms++) {
if (e->xbutton.button == ms->b
&& match(ms->mask, e->xbutton.state)) {
ttysend(ms->s, strlen(ms->s));
return;
}
}
if (e->xbutton.button == Button1) {
clock_gettime(CLOCK_MONOTONIC, &now);
/* Clear previous selection, logically and visually. */
selclear_(NULL);
sel.mode = SEL_EMPTY;
sel.type = SEL_REGULAR;
sel.oe.x = sel.ob.x = x2col(e->xbutton.x);
sel.oe.y = sel.ob.y = y2row(e->xbutton.y);
/*
* If the user clicks below predefined timeouts specific
* snapping behaviour is exposed.
*/
if (TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
sel.snap = SNAP_LINE;
} else if (TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
sel.snap = SNAP_WORD;
} else {
sel.snap = 0;
}
selnormalize();
if (sel.snap != 0)
sel.mode = SEL_READY;
tsetdirt(sel.nb.y, sel.ne.y, 0, term.col - 1);
sel.tclick2 = sel.tclick1;
sel.tclick1 = now;
}
}
void
selcopy(Time t)
{
xsetsel(getsel(), t);
}
void
propnotify(XEvent *e)
{
XPropertyEvent *xpev;
Atom clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
xpev = &e->xproperty;
if (xpev->state == PropertyNewValue &&
(xpev->atom == XA_PRIMARY ||
xpev->atom == clipboard)) {
selnotify(e);
}
}
void
selnotify(XEvent *e)
{
ulong nitems, ofs, rem;
int format;
uchar *data, *last, *repl;
Atom type, incratom, property;
incratom = XInternAtom(xw.dpy, "INCR", 0);
ofs = 0;
if (e->type == SelectionNotify) {
property = e->xselection.property;
} else if(e->type == PropertyNotify) {
property = e->xproperty.atom;
} else {
return;
}
if (property == None)
return;
do {
if (XGetWindowProperty(xw.dpy, xw.win, property, ofs,
BUFSIZ/4, False, AnyPropertyType,
&type, &format, &nitems, &rem,
&data)) {
fprintf(stderr, "Clipboard allocation failed\n");
return;
}
if (e->type == PropertyNotify && nitems == 0 && rem == 0) {
/*
* If there is some PropertyNotify with no data, then
* this is the signal of the selection owner that all
* data has been transferred. We won't need to receive
* PropertyNotify events anymore.
*/
MODBIT(xw.attrs.event_mask, 0, PropertyChangeMask);
XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask,
&xw.attrs);
}
if (type == incratom) {
/*
* Activate the PropertyNotify events so we receive
* when the selection owner does send us the next
* chunk of data.
*/
MODBIT(xw.attrs.event_mask, 1, PropertyChangeMask);
XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask,
&xw.attrs);
/*
* Deleting the property is the transfer start signal.
*/
XDeleteProperty(xw.dpy, xw.win, (int)property);
continue;
}
/*
* As seen in getsel:
* Line endings are inconsistent in the terminal and GUI world
* copy and pasting. When receiving some selection data,
* replace all '\n' with '\r'.
* FIXME: Fix the computer world.
*/
repl = data;
last = data + nitems * format / 8;
while ((repl = memchr(repl, '\n', last - repl))) {
*repl++ = '\r';
}
if (IS_SET(MODE_BRCKTPASTE) && ofs == 0)
ttywrite("\033[200~", 6);
ttysend((char *)data, nitems * format / 8);
if (IS_SET(MODE_BRCKTPASTE) && rem == 0)
ttywrite("\033[201~", 6);
XFree(data);
/* number of 32-bit chunks returned */
ofs += nitems * format / 32;
} while (rem > 0);
/*
* Deleting the property again tells the selection owner to send the
* next data chunk in the property.
*/
XDeleteProperty(xw.dpy, xw.win, (int)property);
}
void
xselpaste(void)
{
XConvertSelection(xw.dpy, XA_PRIMARY, xsel.xtarget, XA_PRIMARY,
xw.win, CurrentTime);
}
void
xclipcopy(void)
{
Atom clipboard;
if (sel.clipboard != NULL)
free(sel.clipboard);
if (sel.primary != NULL) {
sel.clipboard = xstrdup(sel.primary);
clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
}
}
void
xclippaste(void)
{
Atom clipboard;
clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
XConvertSelection(xw.dpy, clipboard, xsel.xtarget, clipboard,
xw.win, CurrentTime);
}
void
selclear_(XEvent *e)
{
selclear();
}
void
selrequest(XEvent *e)
{
XSelectionRequestEvent *xsre;
XSelectionEvent xev;
Atom xa_targets, string, clipboard;
char *seltext;
xsre = (XSelectionRequestEvent *) e;
xev.type = SelectionNotify;
xev.requestor = xsre->requestor;
xev.selection = xsre->selection;
xev.target = xsre->target;
xev.time = xsre->time;
if (xsre->property == None)
xsre->property = xsre->target;
/* reject */
xev.property = None;
xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
if (xsre->target == xa_targets) {
/* respond with the supported type */
string = xsel.xtarget;
XChangeProperty(xsre->display, xsre->requestor, xsre->property,
XA_ATOM, 32, PropModeReplace,
(uchar *) &string, 1);
xev.property = xsre->property;
} else if (xsre->target == xsel.xtarget || xsre->target == XA_STRING) {
/*
* xith XA_STRING non ascii characters may be incorrect in the
* requestor. It is not our problem, use utf8.
*/
clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
if (xsre->selection == XA_PRIMARY) {
seltext = sel.primary;
} else if (xsre->selection == clipboard) {
seltext = sel.clipboard;
} else {
fprintf(stderr,
"Unhandled clipboard selection 0x%lx\n",
xsre->selection);
return;
}
if (seltext != NULL) {
XChangeProperty(xsre->display, xsre->requestor,
xsre->property, xsre->target,
8, PropModeReplace,
(uchar *)seltext, strlen(seltext));
xev.property = xsre->property;
}
}
/* all done, send a notification to the listener */
if (!XSendEvent(xsre->display, xsre->requestor, 1, 0, (XEvent *) &xev))
fprintf(stderr, "Error sending SelectionNotify event\n");
}
void
xsetsel(char *str, Time t)
{
free(sel.primary);
sel.primary = str;
XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, t);
if (XGetSelectionOwner(xw.dpy, XA_PRIMARY) != xw.win)
selclear_(NULL);
}
void
brelease(XEvent *e)
{
if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
mousereport(e);
return;
}
if (e->xbutton.button == Button2) {
xselpaste();
} else if (e->xbutton.button == Button1) {
if (sel.mode == SEL_READY) {
getbuttoninfo(e);
selcopy(e->xbutton.time);
} else
selclear_(NULL);
sel.mode = SEL_IDLE;
tsetdirt(sel.nb.y, sel.ne.y, 0, term.col-1);
}
}
void
bmotion(XEvent *e)
{
int oldey, oldex, oldsby, oldsey;
if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
mousereport(e);
return;
}
if (!sel.mode)
return;
sel.mode = SEL_READY;
oldey = sel.oe.y;
oldex = sel.oe.x;
oldsby = sel.nb.y;
oldsey = sel.ne.y;
getbuttoninfo(e);
if (oldey != sel.oe.y || oldex != sel.oe.x)
tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey), 0, term.col-1);
}
void
xresize(int col, int row)
{
dc.specbuf = realloc(dc.specbuf, col * sizeof(*dc.specbuf));
int pw = col * win.cw;
int ph = row * win.ch;
win.tw = MAX(1, pw);
win.th = MAX(1, ph);
}
ushort
sixd_to_16bit(int x)
{
return x == 0 ? 0 : 0x3737 + 0x2828 * x;
}
int
xloadcolor(int i, const char *name, Color *ncolor)
{
XRenderColor color = { .alpha = 0xffff };
if (!name) {
if (BETWEEN(i, 16, 255)) { /* 256 color */
if (i < 6*6*6+16) { /* same colors as xterm */
color.red = sixd_to_16bit( ((i-16)/36)%6 );
color.green = sixd_to_16bit( ((i-16)/6) %6 );
color.blue = sixd_to_16bit( ((i-16)/1) %6 );
} else { /* greyscale */
color.red = 0x0808 + 0x0a0a * (i - (6*6*6+16));
color.green = color.blue = color.red;
}
return XftColorAllocValue(xw.dpy, xw.vis,
xw.cmap, &color, ncolor);
} else
name = colorname[i];
}
return XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, ncolor);
}
void
xloadcols(void)
{
int i, error;
static int loaded;
Color *cp;
dc.collen = MAX(colornamelen, 256);
dc.col = xmalloc(dc.collen * sizeof(Color));
if (loaded) {
for (cp = dc.col; cp < &dc.col[dc.collen]; ++cp)
XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
}
for (i = 0; i < dc.collen; i++) {
if (!(error = xloadcolor(i, NULL, &dc.col[i]))) {
if (colorname[i])
die("Could not allocate color '%s' %d\n", colorname[i], error);
else
die("Could not allocate color %d\n", i);
}
if (dc.rc && i == defaultbg) {
struct color c;
convert_color(&(dc.col + i)->color, &c);
render_set_clear_color(dc.rc, &c);
}
}
loaded = 1;
}
int
xsetcolorname(int x, const char *name)
{
Color ncolor;
if (!BETWEEN(x, 0, dc.collen))
return 1;
if (!xloadcolor(x, name, &ncolor))
return 1;
XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
dc.col[x] = ncolor;
return 0;
}
/*
* Absolute coordinates.
*/
void
xclear(int x1, int y1, int x2, int y2)
{
struct color tmp;
convert_color(&(dc.col + (IS_SET(MODE_REVERSE)? defaultfg : defaultbg))->color, &tmp);
render_rect(dc.rc, &tmp, x1, y1, x2 - x1, y2 - y1);
}
void
xhints(void)
{
XClassHint class = {opt_name ? opt_name : termname,
opt_class ? opt_class : termname};
XWMHints wm = {.flags = InputHint, .input = 1};
XSizeHints *sizeh = NULL;
sizeh = XAllocSizeHints();
sizeh->flags = PSize | PResizeInc | PBaseSize;
sizeh->height = win.h;
sizeh->width = win.w;
sizeh->height_inc = win.ch;
sizeh->width_inc = win.cw;
sizeh->base_height = 2 * borderpx;
sizeh->base_width = 2 * borderpx;
if (xw.isfixed) {
sizeh->flags |= PMaxSize | PMinSize;
sizeh->min_width = sizeh->max_width = win.w;
sizeh->min_height = sizeh->max_height = win.h;
}
if (xw.gm & (XValue|YValue)) {
sizeh->flags |= USPosition | PWinGravity;
sizeh->x = xw.l;
sizeh->y = xw.t;
sizeh->win_gravity = xgeommasktogravity(xw.gm);
}
XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm,
&class);
XFree(sizeh);
}
int
xgeommasktogravity(int mask)
{
switch (mask & (XNegative|YNegative)) {
case 0:
return NorthWestGravity;
case XNegative:
return NorthEastGravity;
case YNegative:
return SouthWestGravity;
}
return SouthEastGravity;
}
int
xloadfont(Font *f, FcPattern *pattern)
{
FcPattern *configured;
FcPattern *match;
FcResult result;
int wantattr, haveattr;
/*
* Manually configure instead of calling XftMatchFont
* so that we can use the configured pattern for
* "missing glyph" lookups.
*/
configured = FcPatternDuplicate(pattern);
if (!configured)
return 1;
// FcConfigSubstitute(NULL, configured, FcMatchPattern);
// XftDefaultSubstitute(xw.dpy, xw.scr, configured);
match = FcFontMatch(NULL, configured, &result);
if (!match) {
FcPatternDestroy(configured);
return 1;
}
if ((FcPatternGetInteger(configured, FC_SLANT, 0, &wantattr) == FcResultMatch)) {
/*
* Check if xft was unable to find a font with the appropriate
* slant but gave us one anyway. Try to mitigate.
*/
if ((FcPatternGetInteger(pattern, FC_SLANT, 0, &haveattr) != XftResultMatch)
|| haveattr < wantattr) {
f->badslant = 1;
fputs("st: font slant does not match\n", stderr);
}
}
if ((FcPatternGetInteger(configured, FC_WEIGHT, 0, &wantattr) == XftResultMatch)) {
if ((FcPatternGetInteger(configured, FC_WEIGHT, 0, &haveattr) != XftResultMatch)
|| haveattr != wantattr) {
f->badweight = 1;
fputs("st: font weight does not match\n", stderr);
}
}
FcObjectSet * obj = FcObjectSetBuild(FC_FILE, FC_FAMILY, FC_INDEX, (char*) 0);
FcFontSet * fs = FcFontList(dc.cfg, configured, obj);
FcPattern * full_pattern;
printf("Total matches: %d\n", fs->nfont);
if (fs->nfont < 1) {
fputs("st: No matching fonts\n", stderr);
FcPatternDestroy(configured);
FcObjectSetDestroy(obj);
FcFontSetDestroy(fs);
return 1;
}
for (int i = 0; i < fs->nfont; ++i) {
full_pattern = fs->fonts[i];
unsigned char * fname = 0;
unsigned char * fam_name = 0;
FcPatternGetString(full_pattern, FC_FAMILY, 0, &fam_name);
FcPatternGetString(full_pattern, FC_FILE, 0, &fname);
printf("%s %s\n", fam_name, fname);
}
char * file_name = NULL;
int file_index = 0;
if (FcPatternGetString(full_pattern, FC_FILE, 0, (FcChar8**)&file_name) != FcResultMatch) {
fputs("st: failed to get font file\n", stderr);
return 1;
}
if (FcPatternGetInteger(full_pattern, FC_INDEX, 0, &file_index) != FcResultMatch) {
fputs("st: failed to get font index\n", stderr);
}
if (FT_New_Face(dc.lib, file_name, file_index, &f->face) != 0) {
fputs("st: failed to open font file\n", stderr);
}
FcObjectSetDestroy(obj);
FcFontSetDestroy(fs);
f->set = NULL;
f->pattern = configured;
// All freetype values are in "font units". To convert this to actual units
// we multiply by the font size and divide by units_per_EM
// TODO: stop hard-coding the font size
f->ascent = DIVCEIL(font_size * f->face->ascender, f->face->units_per_EM);
f->descent = DIVCEIL(font_size * f->face->descender, f->face->units_per_EM);
f->lbearing = 0;
f->rbearing = DIVCEIL(font_size * f->face->max_advance_width, f->face->units_per_EM);
f->height = DIVCEIL(font_size * (f->face->ascender - f->face->descender), f->face->units_per_EM);
// Infer width from the width of the 'W' character
FT_Load_Char(f->face, 'W', FT_LOAD_RENDER);
f->width = DIVCEIL(font_size * f->face->max_advance_width, f->face->units_per_EM);
f->atlas = atlas_create_from_face(f->face);
// XXX: assuming 72 DPI
FT_Set_Pixel_Sizes(f->face, 0, font_size);
printf("ascent: %d descent: %d rbearing: %d height: %d width: %d\n",
f->ascent, f->descent, f->rbearing, f->height, f->width);
return 0;
}
void
xloadfonts(char *fontstr, double fontsize)
{
FcPattern *pattern;
double fontval;
float ceilf(float);
FT_Init_FreeType(&dc.lib);
dc.cfg = FcInitLoadConfigAndFonts();
pattern = FcNameParse((FcChar8 *)fontstr);
if (!pattern)
die("st: can't open font %s\n", fontstr);
FcPatternDel(pattern, FC_PIXEL_SIZE);
FcPatternDel(pattern, FC_SIZE);
FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
if (xloadfont(&dc.font, pattern))
die("st: can't open font %s\n", fontstr);
/*
if (usedfontsize < 0) {
FcPatternGetDouble(dc.font.pattern,
FC_PIXEL_SIZE, 0, &fontval);
usedfontsize = fontval;
if (fontsize == 0)
defaultfontsize = fontval;
}
*/
/* Setting character width and height. */
win.cw = ceilf(dc.font.width * cwscale);
win.ch = ceilf(dc.font.height * chscale);
FcPatternDel(pattern, FC_SLANT);
FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
if (xloadfont(&dc.ifont, pattern))
die("st: can't open font %s\n", fontstr);
FcPatternDel(pattern, FC_WEIGHT);
FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
if (xloadfont(&dc.ibfont, pattern))
die("st: can't open font %s\n", fontstr);
FcPatternDel(pattern, FC_SLANT);
FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
if (xloadfont(&dc.bfont, pattern))
die("st: can't open font %s\n", fontstr);
FcPatternDestroy(pattern);
}
void
xunloadfont(Font *f)
{
FT_Done_Face(f->face);
FcPatternDestroy(f->pattern);
if (f->set)
FcFontSetDestroy(f->set);
}
void
xunloadfonts(void)
{
/* Free the loaded fonts in the font cache. */
while (frclen > 0) {
atlas_destroy(frc[--frclen].atlas, true);
}
xunloadfont(&dc.font);
xunloadfont(&dc.bfont);
xunloadfont(&dc.ifont);
xunloadfont(&dc.ibfont);
}
void
xinit(void)
{
XGCValues gcvalues;
Cursor cursor;
Window parent;
pid_t thispid = getpid();
XColor xmousefg, xmousebg;
int fb_attr[] = {
GLX_X_RENDERABLE , True,
GLX_DRAWABLE_TYPE , GLX_WINDOW_BIT,
GLX_RENDER_TYPE , GLX_RGBA_BIT,
GLX_X_VISUAL_TYPE , GLX_TRUE_COLOR,
GLX_RED_SIZE , 8,
GLX_GREEN_SIZE , 8,
GLX_BLUE_SIZE , 8,
GLX_ALPHA_SIZE , 8,
GLX_DEPTH_SIZE , 24,
GLX_STENCIL_SIZE , 8,
GLX_DOUBLEBUFFER , True,
//GLX_SAMPLE_BUFFERS , 1,
//GLX_SAMPLES , 4,
None
};
if (!(xw.dpy = XOpenDisplay(NULL)))
die("Can't open display\n");
xw.scr = XDefaultScreen(xw.dpy);
if (!gladLoadGLX(xw.dpy, xw.scr)) {
die("unable to load GLAD GLX\n");
}
/* Parent window */
if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0))))
parent = XRootWindow(xw.dpy, xw.scr);
/* font */
if (!FcInit())
die("Could not init fontconfig.\n");
/* colors */
int fbcount;
xw.fbconf = glXChooseFBConfig(xw.dpy, xw.scr, fb_attr, &fbcount);
if (!xw.fbconf) {
die("Could not get GLX FBConfig\n");
}
xw.vi = glXGetVisualFromFBConfig(xw.dpy, xw.fbconf[0]);
if (!xw.vi) {
die("Could not get X11 visual\n");
}
xw.vis = xw.vi->visual;
xw.cmap = XCreateColormap(xw.dpy, parent, xw.vis, AllocNone);
xloadcols();
/* adjust fixed window geometry */
win.w = 2 * borderpx + term.col * win.cw;
win.h = 2 * borderpx + term.row * win.ch;
if (xw.gm & XNegative)
xw.l += DisplayWidth(xw.dpy, xw.scr) - win.w - 2;
if (xw.gm & YNegative)
xw.t += DisplayHeight(xw.dpy, xw.scr) - win.h - 2;
/* Events */
xw.attrs.background_pixel = dc.col[defaultbg].pixel;
xw.attrs.border_pixel = dc.col[defaultbg].pixel;
xw.attrs.bit_gravity = NorthWestGravity;
xw.attrs.event_mask = FocusChangeMask | KeyPressMask
| ExposureMask | VisibilityChangeMask | StructureNotifyMask
| ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
xw.attrs.colormap = xw.cmap;
xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
win.w, win.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
| CWEventMask | CWColormap, &xw.attrs);
/* input methods */
if ((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
XSetLocaleModifiers("@im=local");