drawing is faster but the bold attr is not supported anymore. - st - Simple Terminal
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---
(DIR) commit f2dff29a16ef0eb1a0b680cdd753471ba406e4f5
(DIR) parent 4e6915a16b75c1e79142e15a9b23e761140d4e9b
(HTM) Author: Aurélien Aptel <aurelien.aptel@gmail.com>
Date: Wed, 28 Oct 2009 14:34:22 +0100
drawing is faster but the bold attr is not supported anymore.
Diffstat:
config.h | 2 +-
st.c | 64 ++++++++++++++++++-------------
2 files changed, 39 insertions(+), 27 deletions(-)
---
(DIR) diff --git a/config.h b/config.h
@@ -3,7 +3,7 @@
#define FONT "fixed"
#define BORDER 3
-#define LINESPACE 1 /* additional pixel between each line */
+#define LINESPACE 0 /* additional pixel between each line */
/* Terminal colors */
static const char *colorname[] = {
(DIR) diff --git a/st.c b/st.c
@@ -3,6 +3,7 @@
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
+#include <limits.h>
#include <locale.h>
#include <stdarg.h>
#include <stdio.h>
@@ -24,6 +25,7 @@
/* Arbitrary sizes */
#define ESCSIZ 256
#define ESCARG 16
+#define MAXDRAWBUF 1024
#define SERRNO strerror(errno)
#define MIN(a, b) ((a) < (b) ? (a) : (b))
@@ -32,6 +34,7 @@
#define DEFAULT(a, b) (a) = (a) ? (a) : (b)
#define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
+#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
/* Attribute, Cursor, Character state, Terminal mode, Screen draw mode */
enum { ATnone=0 , ATreverse=1 , ATunderline=2, ATbold=4 };
@@ -934,6 +937,23 @@ xinit(void) {
}
void
+xdraws (char *s, Glyph base, int x, int y, int len) {
+ unsigned long xfg, xbg;
+ int winx = x*xw.cw, winy = y*xw.ch + dc.font->ascent, width = len*xw.cw;
+ if(base.mode & ATreverse)
+ xfg = dc.col[base.bg], xbg = dc.col[base.fg];
+ else
+ xfg = dc.col[base.fg], xbg = dc.col[base.bg];
+
+ XSetBackground(xw.dis, dc.gc, xbg);
+ XSetForeground(xw.dis, dc.gc, xfg);
+ XDrawImageString(xw.dis, xw.win, dc.gc, winx, winy, s, len);
+
+ if(base.mode & ATunderline)
+ XDrawLine(xw.dis, xw.win, dc.gc, winx, winy+1, winx+width-1, winy+1);
+}
+
+void
xdrawc(int x, int y, Glyph g) {
XRectangle r = { x * xw.cw, y * xw.ch, xw.cw, xw.ch };
unsigned long xfg, xbg;
@@ -944,18 +964,9 @@ xdrawc(int x, int y, Glyph g) {
else
xfg = dc.col[g.fg], xbg = dc.col[g.bg];
/* background */
- XSetForeground(xw.dis, dc.gc, xbg);
- XFillRectangles(xw.dis, xw.win, dc.gc, &r, 1);
- /* string */
+ XSetBackground(xw.dis, dc.gc, xbg);
XSetForeground(xw.dis, dc.gc, xfg);
- XDrawString(xw.dis, xw.win, dc.gc, r.x, r.y+dc.font->ascent, &(g.c), 1);
- if(g.mode & ATbold) /* XXX: bold hack (draw again at x+1) */
- XDrawString(xw.dis, xw.win, dc.gc, r.x+1, r.y+dc.font->ascent, &(g.c), 1);
- /* underline */
- if(g.mode & ATunderline) {
- r.y += dc.font->ascent + 1;
- XDrawLine(xw.dis, xw.win, dc.gc, r.x, r.y, r.x+r.width-1, r.y);
- }
+ XDrawImageString(xw.dis, xw.win, dc.gc, r.x, r.y+dc.font->ascent, &g.c, 1);
}
void
@@ -983,25 +994,26 @@ xcursor(int mode) {
void
draw(int redraw_all) {
- int x, y;
- int changed, set;
-
- if(redraw_all)
- XClearWindow(xw.dis, xw.win);
-
- /* XXX: drawing could be optimised */
+ int i, x, y, ox;
+ Glyph base, new;
+ char buf[MAXDRAWBUF];
+
for(y = 0; y < term.row; y++) {
+ base = term.line[y][0];
+ i = ox = 0;
for(x = 0; x < term.col; x++) {
- changed = term.line[y][x].state & CRupdate;
- set = term.line[y][x].state & CRset;
- if(redraw_all || changed) {
- term.line[y][x].state &= ~CRupdate;
- if(set)
- xdrawc(x, y, term.line[y][x]);
- else
- xclear(x, y, x, y);
+ new = term.line[y][x];
+ if(!ATTRCMP(base, new) && i < MAXDRAWBUF)
+ buf[i++] = new.c;
+ else {
+ xdraws(buf, base, ox, y, i);
+ buf[0] = new.c;
+ i = 1;
+ ox = x;
+ base = new;
}
}
+ xdraws(buf, base, ox, y, i);
}
xcursor(CSdraw);
}