st-alpha-0.5.diff (5066B)
1 diff --git a/config.def.h b/config.def.h 2 index 58b470e..ce34f55 100644 3 --- a/config.def.h 4 +++ b/config.def.h 5 @@ -48,6 +48,8 @@ static char termname[] = "st-256color"; 6 7 static unsigned int tabspaces = 8; 8 9 +/* background opacity */ 10 +static const int alpha = 0xdd; 11 12 /* Terminal colors (16 first used in escape sequence) */ 13 static const char *colorname[] = { 14 @@ -75,6 +77,7 @@ static const char *colorname[] = { 15 16 /* more colors can be added after 255 to use with DefaultXX */ 17 "#cccccc", 18 + "black", 19 }; 20 21 22 @@ -83,7 +86,7 @@ static const char *colorname[] = { 23 * foreground, background, cursor 24 */ 25 static unsigned int defaultfg = 7; 26 -static unsigned int defaultbg = 0; 27 +static unsigned int defaultbg = 257; 28 static unsigned int defaultcs = 256; 29 30 /* 31 diff --git a/config.mk b/config.mk 32 index 97afa2c..18aec14 100644 33 --- a/config.mk 34 +++ b/config.mk 35 @@ -14,7 +14,7 @@ X11LIB = /usr/X11R6/lib 36 INCS = -I. -I/usr/include -I${X11INC} \ 37 `pkg-config --cflags fontconfig` \ 38 `pkg-config --cflags freetype2` 39 -LIBS = -L/usr/lib -lc -L${X11LIB} -lX11 -lutil -lXext -lXft \ 40 +LIBS = -L/usr/lib -lc -L${X11LIB} -lX11 -lutil -lXext -lXft -lXrender \ 41 `pkg-config --libs fontconfig` \ 42 `pkg-config --libs freetype2` 43 44 diff --git a/st.c b/st.c 45 index 392f12d..5b05a5f 100644 46 --- a/st.c 47 +++ b/st.c 48 @@ -65,6 +65,7 @@ char *argv0; 49 #define XK_ANY_MOD UINT_MAX 50 #define XK_NO_MOD 0 51 #define XK_SWITCH_MOD (1<<13) 52 +#define OPAQUE 0Xff 53 54 #define REDRAW_TIMEOUT (80*1000) /* 80 ms */ 55 56 @@ -79,6 +80,7 @@ char *argv0; 57 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg) 58 #define IS_SET(flag) ((term.mode & (flag)) != 0) 59 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000) 60 +#define USE_ARGB (alpha != OPAQUE && opt_embed == NULL) 61 #define CEIL(x) (((x) != (int) (x)) ? (x) + 1 : (x)) 62 63 #define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b)) 64 @@ -255,6 +257,7 @@ typedef struct { 65 int w, h; /* window width and height */ 66 int ch; /* char height */ 67 int cw; /* char width */ 68 + int depth; /* bit depth */ 69 char state; /* focus, redraw, visible */ 70 } XWindow; 71 72 @@ -2706,8 +2709,7 @@ xresize(int col, int row) { 73 xw.th = MAX(1, row * xw.ch); 74 75 XFreePixmap(xw.dpy, xw.buf); 76 - xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h, 77 - DefaultDepth(xw.dpy, xw.scr)); 78 + xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h, xw.depth); 79 XftDrawChange(xw.draw, xw.buf); 80 xclear(0, 0, xw.w, xw.h); 81 } 82 @@ -2738,6 +2740,13 @@ xloadcols(void) { 83 } 84 } 85 86 + /* set alpha value of bg color */ 87 + if (USE_ARGB) { 88 + dc.col[defaultbg].color.alpha = (0xffff * alpha) / OPAQUE; //0xcccc; 89 + dc.col[defaultbg].pixel &= 0x00111111; 90 + dc.col[defaultbg].pixel |= alpha << 24; // 0xcc000000; 91 + } 92 + 93 /* load colors [16-255] ; same colors as xterm */ 94 for(i = 16, r = 0; r < 6; r++) { 95 for(g = 0; g < 6; g++) { 96 @@ -2992,7 +3001,38 @@ xinit(void) { 97 if(!(xw.dpy = XOpenDisplay(NULL))) 98 die("Can't open display\n"); 99 xw.scr = XDefaultScreen(xw.dpy); 100 - xw.vis = XDefaultVisual(xw.dpy, xw.scr); 101 + xw.depth = (USE_ARGB)? 32: XDefaultDepth(xw.dpy, xw.scr); 102 + if (! USE_ARGB) 103 + xw.vis = XDefaultVisual(xw.dpy, xw.scr); 104 + else { 105 + XVisualInfo *vis; 106 + XRenderPictFormat *fmt; 107 + int nvi; 108 + int i; 109 + 110 + XVisualInfo tpl = { 111 + .screen = xw.scr, 112 + .depth = 32, 113 + .class = TrueColor 114 + }; 115 + 116 + vis = XGetVisualInfo(xw.dpy, VisualScreenMask | VisualDepthMask | VisualClassMask, &tpl, &nvi); 117 + xw.vis = NULL; 118 + for(i = 0; i < nvi; i ++) { 119 + fmt = XRenderFindVisualFormat(xw.dpy, vis[i].visual); 120 + if (fmt->type == PictTypeDirect && fmt->direct.alphaMask) { 121 + xw.vis = vis[i].visual; 122 + break; 123 + } 124 + } 125 + 126 + XFree(vis); 127 + 128 + if (! xw.vis) { 129 + fprintf(stderr, "Couldn't find ARGB visual.\n"); 130 + exit(1); 131 + } 132 + } 133 134 /* font */ 135 if(!FcInit()) 136 @@ -3002,7 +3042,10 @@ xinit(void) { 137 xloadfonts(usedfont, 0); 138 139 /* colors */ 140 - xw.cmap = XDefaultColormap(xw.dpy, xw.scr); 141 + if (! USE_ARGB) 142 + xw.cmap = XDefaultColormap(xw.dpy, xw.scr); 143 + else 144 + xw.cmap = XCreateColormap(xw.dpy, XRootWindow(xw.dpy, xw.scr), xw.vis, None); 145 xloadcols(); 146 147 /* adjust fixed window geometry */ 148 @@ -3036,16 +3079,17 @@ xinit(void) { 149 parent = opt_embed ? strtol(opt_embed, NULL, 0) : \ 150 XRootWindow(xw.dpy, xw.scr); 151 xw.win = XCreateWindow(xw.dpy, parent, xw.fx, xw.fy, 152 - xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput, 153 + xw.w, xw.h, 0, xw.depth, InputOutput, 154 xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity 155 | CWEventMask | CWColormap, &xw.attrs); 156 157 memset(&gcvalues, 0, sizeof(gcvalues)); 158 gcvalues.graphics_exposures = False; 159 - dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures, 160 + xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h, xw.depth); 161 + dc.gc = XCreateGC(xw.dpy, 162 + (USE_ARGB)? xw.buf: parent, 163 + GCGraphicsExposures, 164 &gcvalues); 165 - xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h, 166 - DefaultDepth(xw.dpy, xw.scr)); 167 XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel); 168 XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h); 169