aboutsummaryrefslogtreecommitdiffstats
path: root/st-custom/0001-Add-transparency.patch
diff options
context:
space:
mode:
Diffstat (limited to 'st-custom/0001-Add-transparency.patch')
-rw-r--r--st-custom/0001-Add-transparency.patch168
1 files changed, 168 insertions, 0 deletions
diff --git a/st-custom/0001-Add-transparency.patch b/st-custom/0001-Add-transparency.patch
new file mode 100644
index 0000000..08d4b91
--- /dev/null
+++ b/st-custom/0001-Add-transparency.patch
@@ -0,0 +1,168 @@
+From f4519f34fbdc1eaa2787396f76ce99743d8e2dfb Mon Sep 17 00:00:00 2001
+From: Tharre <tharre3@gmail.com>
+Date: Mon, 13 Jul 2015 18:32:13 +0200
+Subject: [PATCH] Add transparency
+
+---
+ config.def.h | 3 +++
+ config.mk | 2 +-
+ st.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++--------
+ 3 files changed, 57 insertions(+), 9 deletions(-)
+
+diff --git a/config.def.h b/config.def.h
+index e246e3c..1f8c524 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -96,6 +96,9 @@ static unsigned int defaultfg = 7;
+ static unsigned int defaultbg = 0;
+ static unsigned int defaultcs = 256;
+
++/* background opacity */
++static const int alpha = 0xed;
++
+ /*
+ * Colors used, when the specific fg == defaultfg. So in reverse mode this
+ * will reverse too. Another logic would only make the simple feature too
+diff --git a/config.mk b/config.mk
+index 67844dc..ce5753a 100644
+--- a/config.mk
++++ b/config.mk
+@@ -14,7 +14,7 @@ X11LIB = /usr/X11R6/lib
+ INCS = -I. -I/usr/include -I${X11INC} \
+ `pkg-config --cflags fontconfig` \
+ `pkg-config --cflags freetype2`
+-LIBS = -L/usr/lib -lc -L${X11LIB} -lm -lrt -lX11 -lutil -lXext -lXft \
++LIBS = -L/usr/lib -lc -L${X11LIB} -lm -lrt -lX11 -lutil -lXext -lXft -lXrender \
+ `pkg-config --libs fontconfig` \
+ `pkg-config --libs freetype2`
+
+diff --git a/st.c b/st.c
+index 64e2cec..11025b2 100644
+--- a/st.c
++++ b/st.c
+@@ -60,6 +60,7 @@ char *argv0;
+ #define XK_ANY_MOD UINT_MAX
+ #define XK_NO_MOD 0
+ #define XK_SWITCH_MOD (1<<13)
++#define OPAQUE 0xff
+
+ /* macros */
+ #define MIN(a, b) ((a) < (b) ? (a) : (b))
+@@ -84,6 +85,7 @@ char *argv0;
+ #define TRUERED(x) (((x) & 0xff0000) >> 8)
+ #define TRUEGREEN(x) (((x) & 0xff00))
+ #define TRUEBLUE(x) (((x) & 0xff) << 8)
++#define USE_ARGB (alpha != OPAQUE && opt_embed == NULL)
+
+
+ enum glyph_attribute {
+@@ -266,6 +268,7 @@ typedef struct {
+ int w, h; /* window width and height */
+ int ch; /* char height */
+ int cw; /* char width */
++ int depth; /* bit depth */
+ char state; /* focus, redraw, visible */
+ int cursor; /* cursor style */
+ } XWindow;
+@@ -3102,8 +3105,7 @@ xresize(int col, int row)
+ xw.th = MAX(1, row * xw.ch);
+
+ XFreePixmap(xw.dpy, xw.buf);
+- xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
+- DefaultDepth(xw.dpy, xw.scr));
++ xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h, xw.depth);
+ XftDrawChange(xw.draw, xw.buf);
+ xclear(0, 0, xw.w, xw.h);
+ }
+@@ -3157,6 +3159,14 @@ 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; //0xcccc;
++ dc.col[defaultbg].pixel &= 0x00111111;
++ dc.col[defaultbg].pixel |= alpha << 24; // 0xcc000000;
++ }
++
+ loaded = 1;
+ }
+
+@@ -3415,7 +3425,38 @@ 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())
+@@ -3425,7 +3466,10 @@ 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 */
+@@ -3448,16 +3492,17 @@ 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,
+- xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
++ xw.w, xw.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,
++ xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h, xw.depth);
++ dc.gc = XCreateGC(xw.dpy,
++ (USE_ARGB)? xw.buf: parent,
++ GCGraphicsExposures,
+ &gcvalues);
+- xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
+- DefaultDepth(xw.dpy, xw.scr));
+ XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
+ XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
+
+--
+2.4.5
+