1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
diff --git a/config.mk b/config.mk
index 0aceec4..d3d8dd3 100644
--- a/config.mk
+++ b/config.mk
@@ -14,7 +14,7 @@ X11LIB = /usr/X11R6/lib
INCS = -I$(X11INC) \
`pkg-config --cflags fontconfig` \
`pkg-config --cflags freetype2`
-LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft \
+LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft -lXrender\
`pkg-config --libs fontconfig` \
`pkg-config --libs freetype2`
diff --git a/st.h b/st.h
index 1f069d2..b4caed7 100644
--- a/st.h
+++ b/st.h
@@ -266,6 +266,7 @@ extern unsigned int blinktimeout;
extern char termname[];
extern const char *colorname[];
extern size_t colornamelen;
+extern unsigned int alpha;
extern unsigned int defaultfg;
extern unsigned int defaultbg;
extern unsigned int defaultcs;
diff --git a/win.h b/win.h
index 428111c..05e8482 100644
--- a/win.h
+++ b/win.h
@@ -5,6 +5,10 @@
#define XK_NO_MOD 0
#define XK_SWITCH_MOD (1<<13)
+/* alpha */
+#define OPAQUE 0Xff
+#define USE_ARGB (alpha != OPAQUE && opt_embed == NULL)
+
typedef XftGlyphFontSpec GlyphFontSpec;
void draw(void);
diff --git a/x.c b/x.c
index dc1c379..6846e40 100644
--- a/x.c
+++ b/x.c
@@ -54,6 +54,7 @@ typedef struct {
int pointerisvisible;
int scr;
int isfixed; /* is fixed geometry? */
+ int depth; /* bit depth */
int l, t; /* left and top offset */
int gm; /* geometry mask */
} XWindow;
@@ -584,7 +585,7 @@ xresize(int col, int row)
XFreePixmap(xw.dpy, xw.buf);
xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
- DefaultDepth(xw.dpy, xw.scr));
+ xw.depth);
XftDrawChange(xw.draw, xw.buf);
xclear(0, 0, win.w, win.h);
}
@@ -641,6 +642,13 @@ xloadcols(void)
else
die("Could not allocate color %d\n", i);
}
+
+ /* set alpha value of bg color */
+ if (USE_ARGB) {
+ dc.col[defaultbg].color.alpha = (0xffff * alpha) / OPAQUE;
+ dc.col[defaultbg].pixel &= 0x00111111;
+ dc.col[defaultbg].pixel |= alpha << 24;
+ }
loaded = 1;
}
@@ -662,6 +670,17 @@ xsetcolorname(int x, const char *name)
return 0;
}
+void
+xtermclear(int col1, int row1, int col2, int row2)
+{
+ XftDrawRect(xw.draw,
+ &dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
+ borderpx + col1 * win.cw,
+ borderpx + row1 * win.ch,
+ (col2-col1+1) * win.cw,
+ (row2-row1+1) * win.ch);
+}
+
/*
* Absolute coordinates.
*/
@@ -902,7 +921,40 @@ xinit(void)
if (!(xw.dpy = XOpenDisplay(NULL)))
die("Can't open display\n");
xw.scr = XDefaultScreen(xw.dpy);
- xw.vis = XDefaultVisual(xw.dpy, xw.scr);
+ xw.depth = (USE_ARGB) ? 32: XDefaultDepth(xw.dpy, xw.scr);
+ if (!USE_ARGB)
+ xw.vis = XDefaultVisual(xw.dpy, xw.scr);
+ else {
+ XVisualInfo *vis;
+ XRenderPictFormat *fmt;
+ int nvi;
+ int i;
+
+ XVisualInfo tpl = {
+ .screen = xw.scr,
+ .depth = 32,
+ .class = TrueColor
+ };
+
+ vis = XGetVisualInfo(xw.dpy,
+ VisualScreenMask | VisualDepthMask | VisualClassMask,
+ &tpl, &nvi);
+ xw.vis = NULL;
+ for (i = 0; i < nvi; i++) {
+ fmt = XRenderFindVisualFormat(xw.dpy, vis[i].visual);
+ if (fmt->type == PictTypeDirect && fmt->direct.alphaMask) {
+ xw.vis = vis[i].visual;
+ break;
+ }
+ }
+
+ XFree(vis);
+
+ if (!xw.vis) {
+ fprintf(stderr, "Couldn't find ARGB visual.\n");
+ exit(1);
+ }
+ }
/* font */
if (!FcInit())
@@ -912,7 +964,11 @@ xinit(void)
xloadfonts(usedfont, 0);
/* colors */
- xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
+ if (!USE_ARGB)
+ xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
+ else
+ xw.cmap = XCreateColormap(xw.dpy, XRootWindow(xw.dpy, xw.scr),
+ xw.vis, None);
xloadcols();
/* adjust fixed window geometry */
@@ -935,16 +991,15 @@ xinit(void)
if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0))))
parent = XRootWindow(xw.dpy, xw.scr);
xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
- win.w, win.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
+ win.w, win.h, 0, xw.depth, InputOutput,
xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
| CWEventMask | CWColormap, &xw.attrs);
memset(&gcvalues, 0, sizeof(gcvalues));
gcvalues.graphics_exposures = False;
- dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
- &gcvalues);
- xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
- DefaultDepth(xw.dpy, xw.scr));
+ xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, xw.depth);
+ dc.gc = XCreateGC(xw.dpy, (USE_ARGB) ? xw.buf: parent,
+ GCGraphicsExposures, &gcvalues);
XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h);
|