Added graphics patch

1 files changed, 166 insertions, 0 deletions

diff --git a/st-0.8.5/patches/st-graphics.diff b/st-0.8.5/patches/st-graphics.diff
new file mode 100644
index 0000000..1bc4d48
--- /dev/null
+++ b/st-0.8.5/patches/st-graphics.diff
@@ -0,0 +1,166 @@
+# A patch taken from boards.4channel.org/g/thread/87102876
+# adds graphics to st
+diff --git a/st.c b/st.c
+index 6ba467d..efad5ec 100644
+--- a/st.c
++++ b/st.c
+@@ -752,10 +752,11 @@ stty(char **args)
+ 		perror("Couldn't call stty");
+ }
+ 
+-int
++TTYConn
+ ttynew(const char *line, char *cmd, const char *out, char **args)
+ {
+ 	int m, s;
++	int mypipe[2];
+ 
+ 	if (out) {
+ 		term.mode |= MODE_PRINT;
+@@ -766,6 +767,7 @@ ttynew(const char *line, char *cmd, const char *out, char **args)
+ 				out, strerror(errno));
+ 		}
+ 	}
++	pipe(mypipe);
+ 
+ 	if (line) {
+ 		if ((cmdfd = open(line, O_RDWR)) < 0)
+@@ -773,7 +775,7 @@ ttynew(const char *line, char *cmd, const char *out, char **args)
+ 			    line, strerror(errno));
+ 		dup2(cmdfd, 0);
+ 		stty(args);
+-		return cmdfd;
++		return (TTYConn){ cmdfd, cmdfd };
+ 	}
+ 
+ 	/* seems to work fine on linux, openbsd and freebsd */
+@@ -791,6 +793,7 @@ ttynew(const char *line, char *cmd, const char *out, char **args)
+ 		dup2(s, 0);
+ 		dup2(s, 1);
+ 		dup2(s, 2);
++		dup2(mypipe[1], 3);
+ 		if (ioctl(s, TIOCSCTTY, NULL) < 0)
+ 			die("ioctl TIOCSCTTY failed: %s\n", strerror(errno));
+ 		if (s > 2)
+@@ -807,11 +810,12 @@ ttynew(const char *line, char *cmd, const char *out, char **args)
+ 			die("pledge\n");
+ #endif
+ 		close(s);
++		close(mypipe[1]);
+ 		cmdfd = m;
+ 		signal(SIGCHLD, sigchld);
+ 		break;
+ 	}
+-	return cmdfd;
++	return (TTYConn){ .cmdfd = cmdfd, .pipefd = mypipe[0] };
+ }
+ 
+ size_t
+diff --git a/st.h b/st.h
+index fd3b0d8..e5613ba 100644
+--- a/st.h
++++ b/st.h
+@@ -59,6 +59,10 @@ typedef unsigned short ushort;
+ 
+ typedef uint_least32_t Rune;
+ 
++typedef struct TTYConn {
++	int cmdfd, pipefd;
++} TTYConn;
++
+ #define Glyph Glyph_
+ typedef struct {
+ 	Rune u;           /* character code */
+@@ -91,7 +95,7 @@ void tnew(int, int);
+ void tresize(int, int);
+ void tsetdirtattr(int);
+ void ttyhangup(void);
+-int ttynew(const char *, char *, const char *, char **);
++TTYConn ttynew(const char *, char *, const char *, char **);
+ size_t ttyread(void);
+ void ttyresize(int, int);
+ void ttywrite(const char *, size_t, int);
+diff --git a/x.c b/x.c
+index 2a3bd38..16caf2b 100644
+--- a/x.c
++++ b/x.c
+@@ -5,6 +5,7 @@
+ #include <locale.h>
+ #include <signal.h>
+ #include <sys/select.h>
++#include <fcntl.h>
+ #include <time.h>
+ #include <unistd.h>
+ #include <libgen.h>
+@@ -1914,9 +1915,11 @@ run(void)
+ 	XEvent ev;
+ 	int w = win.w, h = win.h;
+ 	fd_set rfd;
+-	int xfd = XConnectionNumber(xw.dpy), ttyfd, xev, drawing;
++	int xfd = XConnectionNumber(xw.dpy), ttyfd, pipefd, xev, drawing;
+ 	struct timespec seltv, *tv, now, lastblink, trigger;
+ 	double timeout;
++	TTYConn conn;
++	unsigned long color;
+ 
+ 	/* Waiting for window mapping */
+ 	do {
+@@ -1934,12 +1937,17 @@ run(void)
+ 		}
+ 	} while (ev.type != MapNotify);
+ 
+-	ttyfd = ttynew(opt_line, shell, opt_io, opt_cmd);
++	conn = ttynew(opt_line, shell, opt_io, opt_cmd);
++	ttyfd = conn.cmdfd;
++	pipefd = conn.pipefd;
+ 	cresize(w, h);
+ 
++	fcntl(pipefd, F_SETFL, O_NONBLOCK);
++	FILE *command = fdopen(pipefd, "r");
+ 	for (timeout = -1, drawing = 0, lastblink = (struct timespec){0};;) {
+ 		FD_ZERO(&rfd);
+ 		FD_SET(ttyfd, &rfd);
++		FD_SET(pipefd, &rfd);
+ 		FD_SET(xfd, &rfd);
+ 
+ 		if (XPending(xw.dpy))
+@@ -1949,7 +1957,7 @@ run(void)
+ 		seltv.tv_nsec = 1E6 * (timeout - 1E3 * seltv.tv_sec);
+ 		tv = timeout >= 0 ? &seltv : NULL;
+ 
+-		if (pselect(MAX(xfd, ttyfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) {
++		if (pselect(MAX(MAX(xfd, ttyfd), pipefd)+1, &rfd, NULL, NULL, tv, NULL) < 0) {
+ 			if (errno == EINTR)
+ 				continue;
+ 			die("select failed: %s\n", strerror(errno));
+@@ -2006,6 +2014,30 @@ run(void)
+ 		}
+ 
+ 		draw();
++		if(FD_ISSET(pipefd, &rfd)) {
++			char header[128];
++			int x, y;
++			int w, h;
++			int r, g, b;
++			
++			xstartdraw();
++			while(fscanf(command, "%s", header) != EOF) {
++				printf("Command: %s\n", header);
++				if(strcmp(header, "set-color") == 0) {
++					fscanf(command, "%d %d %d", &r, &g, &b);
++
++					color = b + (g << 8) + (r << 16);
++				}
++
++				if(strcmp(header, "fill-rectangle") == 0) {
++					fscanf(command, "%d %d %d %d", &x, &y, &w, &h);
++					XSetForeground(xw.dpy, dc.gc, color);
++					XFillRectangle(xw.dpy, xw.buf, dc.gc, x, y, w, h);
++				}
++			}
++			xfinishdraw();
++		}
++
+ 		XFlush(xw.dpy);
+ 		drawing = 0;
+ 	}