fallingsky04
/
st
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

double-buffering added using pixmap (finally). 

results in a lot of simplification :
	- no more dirty flags (perf are good enough).
	- no more ugly gfx call in emulation functions.
LINESPACE removed from config.h.
BORDER is now handled correctly.
This commit is contained in:
Aurélien Aptel 2010-03-15 23:56:38 +01:00
parent 0f4dd5035e
commit b3b7ffce5f
2 changed files with 25 additions and 47 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
config.h
View File

@ -3,8 +3,7 @@
#define FONT "6x13" #define FONT "6x13"
#define BOLDFONT FONT"bold" #define BOLDFONT FONT"bold"
#define BORDER 3 #define BORDER 2
#define LINESPACE 0 /* additional pixel between each line */
/* Terminal colors */ /* Terminal colors */
static const char *colorname[] = { static const char *colorname[] = {

67
st.c Normal file → Executable file
View File

@ -91,6 +91,7 @@ typedef struct {
typedef struct { typedef struct {
Display* dis; Display* dis;
Window win; Window win;
Pixmap buf;
int scr; int scr;
int w; /* window width */ int w; /* window width */
int h; /* window height */ int h; /* window height */
@ -154,7 +155,6 @@ static unsigned long xgetcol(const char *);
static void xclear(int, int, int, int); static void xclear(int, int, int, int);
static void xcursor(int); static void xcursor(int);
static void xinit(void); static void xinit(void);
static void xscroll(void);
static void expose(XEvent *); static void expose(XEvent *);
static char* kmap(KeySym); static char* kmap(KeySym);
@ -215,7 +215,7 @@ execsh(void) {
void void
xbell(void) { /* visual bell */ xbell(void) { /* visual bell */
XRectangle r = { 0, 0, xw.w, xw.h }; XRectangle r = { BORDER, BORDER, xw.w, xw.h };
XSetForeground(xw.dis, dc.gc, dc.col[BellCol]); XSetForeground(xw.dis, dc.gc, dc.col[BellCol]);
XFillRectangles(xw.dis, xw.win, dc.gc, &r, 1); XFillRectangles(xw.dis, xw.win, dc.gc, &r, 1);
/* usleep(30000); */ /* usleep(30000); */
@ -350,9 +350,7 @@ void
tscroll(void) { tscroll(void) {
Line temp = term.line[term.top]; Line temp = term.line[term.top];
int i; int i;
/* No dirty flag to set because of xscroll */
/* X stuff _before_ the line swapping (results in wrong line index) */
xscroll();
for(i = term.top; i < term.bot; i++) for(i = term.top; i < term.bot; i++)
term.line[i] = term.line[i+1]; term.line[i] = term.line[i+1];
memset(temp, 0, sizeof(Glyph) * term.col); memset(temp, 0, sizeof(Glyph) * term.col);
@ -364,7 +362,6 @@ tscrolldown (int n) {
int i; int i;
Line temp; Line temp;
/* TODO: set dirty flag or scroll with some X func */
LIMIT(n, 0, term.bot-term.top+1); LIMIT(n, 0, term.bot-term.top+1);
for(i = 0; i < n; i++) for(i = 0; i < n; i++)
@ -383,7 +380,6 @@ tscrollup (int n) {
Line temp; Line temp;
LIMIT(n, 0, term.bot-term.top+1); LIMIT(n, 0, term.bot-term.top+1);
/* TODO: set dirty flag or scroll with some X func */
for(i = 0; i < n; i++) for(i = 0; i < n; i++)
memset(term.line[term.top+i], 0, term.col*sizeof(Glyph)); memset(term.line[term.top+i], 0, term.col*sizeof(Glyph));
@ -467,7 +463,7 @@ void
tsetchar(char c) { tsetchar(char c) {
term.line[term.c.y][term.c.x] = term.c.attr; term.line[term.c.y][term.c.x] = term.c.attr;
term.line[term.c.y][term.c.x].c = c; term.line[term.c.y][term.c.x].c = c;
term.line[term.c.y][term.c.x].state |= GLYPH_SET | GLYPH_DIRTY; term.line[term.c.y][term.c.x].state |= GLYPH_SET;
} }
void void
@ -486,8 +482,6 @@ tclearregion(int x1, int y1, int x2, int y2) {
for(y = y1; y <= y2; y++) for(y = y1; y <= y2; y++)
memset(&term.line[y][x1], 0, sizeof(Glyph)*(x2-x1+1)); memset(&term.line[y][x1], 0, sizeof(Glyph)*(x2-x1+1));
xclear(x1, y1, x2, y2);
} }
void void
@ -518,13 +512,6 @@ tinsertblank(int n) {
tclearregion(src, term.c.y, dst, term.c.y); tclearregion(src, term.c.y, dst, term.c.y);
} }
void
tsetlinestate(int n, int state) {
int i;
for(i = 0; i < term.col; i++)
term.line[n][i].state |= state;
}
void void
tinsertblankline(int n) { tinsertblankline(int n) {
int i; int i;
@ -546,8 +533,6 @@ tinsertblankline(int n) {
term.line[i-n] = blank; term.line[i-n] = blank;
/* blank it */ /* blank it */
memset(blank, 0, term.col * sizeof(Glyph)); memset(blank, 0, term.col * sizeof(Glyph));
tsetlinestate(i, GLYPH_DIRTY);
tsetlinestate(i-n, GLYPH_DIRTY);
} }
} }
@ -572,8 +557,6 @@ tdeleteline(int n) {
term.line[i+n] = blank; term.line[i+n] = blank;
/* blank it */ /* blank it */
memset(blank, 0, term.col * sizeof(Glyph)); memset(blank, 0, term.col * sizeof(Glyph));
tsetlinestate(i, GLYPH_DIRTY);
tsetlinestate(i-n, GLYPH_DIRTY);
} }
} }
@ -1037,21 +1020,10 @@ xgetcol(const char *s) {
void void
xclear(int x1, int y1, int x2, int y2) { xclear(int x1, int y1, int x2, int y2) {
XClearArea(xw.dis, xw.win, XSetForeground(xw.dis, dc.gc, dc.col[DefaultBG]);
XFillRectangle(xw.dis, xw.buf, dc.gc,
x1 * xw.cw, y1 * xw.ch, x1 * xw.cw, y1 * xw.ch,
(x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch, (x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch);
False);
}
void
xscroll(void) {
int srcy = (term.top+1) * xw.ch;
int dsty = term.top * xw.ch;
int height = (term.bot-term.top) * xw.ch;
xcursor(CURSOR_HIDE);
XCopyArea(xw.dis, xw.win, xw.win, dc.gc, 0, srcy, xw.w, height, 0, dsty);
xclear(0, term.bot, term.col-1, term.bot);
} }
void void
@ -1073,7 +1045,7 @@ xinit(void) {
/* XXX: Assuming same size for bold font */ /* XXX: Assuming same size for bold font */
xw.cw = dc.font->max_bounds.rbearing - dc.font->min_bounds.lbearing; xw.cw = dc.font->max_bounds.rbearing - dc.font->min_bounds.lbearing;
xw.ch = dc.font->ascent + dc.font->descent + LINESPACE; xw.ch = dc.font->ascent + dc.font->descent;
/* colors */ /* colors */
for(i = 0; i < LEN(colorname); i++) for(i = 0; i < LEN(colorname); i++)
@ -1085,11 +1057,11 @@ xinit(void) {
/* windows */ /* windows */
xw.h = term.row * xw.ch; xw.h = term.row * xw.ch;
xw.w = term.col * xw.cw; xw.w = term.col * xw.cw;
/* XXX: this BORDER is useless after the first resize, handle it in xdraws() */
xw.win = XCreateSimpleWindow(xw.dis, XRootWindow(xw.dis, xw.scr), 0, 0, xw.win = XCreateSimpleWindow(xw.dis, XRootWindow(xw.dis, xw.scr), 0, 0,
xw.w, xw.h, BORDER, xw.w + 2*BORDER, xw.h + 2*BORDER, 0,
dc.col[DefaultBG], dc.col[DefaultBG],
dc.col[DefaultBG]); dc.col[DefaultBG]);
xw.buf = XCreatePixmap(xw.dis, xw.win, xw.w, xw.h, XDefaultDepth(xw.dis, xw.scr));
/* gc */ /* gc */
dc.gc = XCreateGC(xw.dis, xw.win, 0, NULL); dc.gc = XCreateGC(xw.dis, xw.win, 0, NULL);
XMapWindow(xw.dis, xw.win); XMapWindow(xw.dis, xw.win);
@ -1097,11 +1069,13 @@ xinit(void) {
chint.res_name = TNAME, chint.res_class = TNAME; chint.res_name = TNAME, chint.res_class = TNAME;
wmhint.input = 1, wmhint.flags = InputHint; wmhint.input = 1, wmhint.flags = InputHint;
shint.height_inc = xw.ch, shint.width_inc = xw.cw; shint.height_inc = xw.ch, shint.width_inc = xw.cw;
shint.height = xw.h, shint.width = xw.w; shint.height = xw.h + 2*BORDER, shint.width = xw.w + 2*BORDER;
shint.flags = PSize | PResizeInc; shint.flags = PSize | PResizeInc;
XSetWMProperties(xw.dis, xw.win, NULL, NULL, &args[0], 0, &shint, &wmhint, &chint); XSetWMProperties(xw.dis, xw.win, NULL, NULL, &args[0], 0, &shint, &wmhint, &chint);
XStoreName(xw.dis, xw.win, TNAME); XStoreName(xw.dis, xw.win, TNAME);
XFillRectangle(xw.dis, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
XSync(xw.dis, 0); XSync(xw.dis, 0);
} }
void void
@ -1123,10 +1097,10 @@ xdraws(char *s, Glyph base, int x, int y, int len) {
s[i] = gfx[s[i]]; s[i] = gfx[s[i]];
XSetFont(xw.dis, dc.gc, base.mode & ATTR_BOLD ? dc.bfont->fid : dc.font->fid); XSetFont(xw.dis, dc.gc, base.mode & ATTR_BOLD ? dc.bfont->fid : dc.font->fid);
XDrawImageString(xw.dis, xw.win, dc.gc, winx, winy, s, len); XDrawImageString(xw.dis, xw.buf, dc.gc, winx, winy, s, len);
if(base.mode & ATTR_UNDERLINE) if(base.mode & ATTR_UNDERLINE)
XDrawLine(xw.dis, xw.win, dc.gc, winx, winy+1, winx+width-1, winy+1); XDrawLine(xw.dis, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);
} }
void void
@ -1163,7 +1137,7 @@ xdrawc(int x, int y, Glyph g) {
XSetBackground(xw.dis, dc.gc, dc.col[g.bg]); XSetBackground(xw.dis, dc.gc, dc.col[g.bg]);
XSetForeground(xw.dis, dc.gc, dc.col[g.fg]); XSetForeground(xw.dis, dc.gc, dc.col[g.fg]);
XSetFont(xw.dis, dc.gc, g.mode & ATTR_BOLD ? dc.bfont->fid : dc.font->fid); XSetFont(xw.dis, dc.gc, g.mode & ATTR_BOLD ? dc.bfont->fid : dc.font->fid);
XDrawImageString(xw.dis, xw.win, dc.gc, r.x, r.y+dc.font->ascent, &g.c, 1); XDrawImageString(xw.dis, xw.buf, dc.gc, r.x, r.y+dc.font->ascent, &g.c, 1);
} }
void void
@ -1178,6 +1152,8 @@ draw_(int dummy) {
if(!term.hidec) if(!term.hidec)
xcursor(CURSOR_DRAW); xcursor(CURSOR_DRAW);
XCopyArea(xw.dis, xw.buf, xw.win, dc.gc, 0, 0, xw.w, xw.h, BORDER, BORDER);
XFlush(xw.dis);
} }
#endif #endif
@ -1187,7 +1163,6 @@ draw(int redraw_all) {
Glyph base, new; Glyph base, new;
char buf[DRAW_BUF_SIZ]; char buf[DRAW_BUF_SIZ];
/* XXX: optimize with GLYPH_DIRTY hint */
for(y = 0; y < term.row; y++) { for(y = 0; y < term.row; y++) {
base = term.line[y][0]; base = term.line[y][0];
i = ox = 0; i = ox = 0;
@ -1206,6 +1181,8 @@ draw(int redraw_all) {
xdraws(buf, base, ox, y, i); xdraws(buf, base, ox, y, i);
} }
xcursor(term.hidec ? CURSOR_HIDE : CURSOR_DRAW); xcursor(term.hidec ? CURSOR_HIDE : CURSOR_DRAW);
XCopyArea(xw.dis, xw.buf, xw.win, dc.gc, 0, 0, xw.w, xw.h, BORDER, BORDER);
XFlush(xw.dis);
} }
void void
@ -1273,6 +1250,8 @@ resize(XEvent *e) {
ttyresize(col, row); ttyresize(col, row);
xw.w = e->xconfigure.width; xw.w = e->xconfigure.width;
xw.h = e->xconfigure.height; xw.h = e->xconfigure.height;
XFreePixmap(xw.dis, xw.buf);
xw.buf = XCreatePixmap(xw.dis, xw.win, xw.w, xw.h, XDefaultDepth(xw.dis, xw.scr));
draw(SCREEN_REDRAW); draw(SCREEN_REDRAW);
} }
} }
@ -1285,7 +1264,7 @@ run(void) {
running = 1; running = 1;
XSelectInput(xw.dis, xw.win, ExposureMask | KeyPressMask | StructureNotifyMask); XSelectInput(xw.dis, xw.win, ExposureMask | KeyPressMask | StructureNotifyMask);
XResizeWindow(xw.dis, xw.win, xw.w , xw.h); /* fix resize bug in wmii (?) */ XResizeWindow(xw.dis, xw.win, xw.w+2*BORDER, xw.h+2*BORDER); /* fix resize bug in wmii (?) */
while(running) { while(running) {
FD_ZERO(&rfd); FD_ZERO(&rfd);