X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=fbgfx;a=blobdiff_plain;f=src%2Ffbevents.c;fp=src%2Ffbevents.c;h=1522a5889d6030c540b21cdda695b77f77aeb235;hp=0000000000000000000000000000000000000000;hb=4b522caf5387f8075b7bbb2a2b0475c012157456;hpb=7e9af893a6d14c0136a89648a2fdebab614a662f

diff --git a/src/fbevents.c b/src/fbevents.c
new file mode 100644
index 0000000..1522a58
--- /dev/null
+++ b/src/fbevents.c
@@ -0,0 +1,84 @@
+#include <stdio.h>
+#include <assert.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <termios.h>
+#include "fbevents.h"
+
+static struct termios orig_state;
+static int term_fd = -1;	/* tty file descriptor */
+
+static void (*keyb_func)(int, int, void*);
+static void *keyb_cls;
+static void (*mbutton_func)(int, int, int, int, void*);
+static void *mbutton_cls;
+static void (*mmotion_func)(int, int, void*);
+static void *mmotion_cls;
+
+
+int fbev_init(void)
+{
+	struct termios tstate;
+
+	if((term_fd = open("/dev/tty", O_RDWR)) == -1) {
+		perror("failed to open tty");
+		return -1;
+	}
+	fcntl(term_fd, F_SETFL, fcntl(term_fd, F_GETFL) | O_NONBLOCK);
+
+	if(tcgetattr(term_fd, &tstate) == -1) {
+		perror("failed to retrieve tty attribs");
+		close(term_fd);
+		return -1;
+	}
+	orig_state = tstate;
+
+	cfmakeraw(&tstate);
+	if(tcsetattr(term_fd, TCSANOW, &tstate) == -1) {
+		close(term_fd);
+		return -1;
+	}
+	return 0;
+}
+
+void fbev_shutdown(void)
+{
+	if(term_fd >= 0) {
+		tcsetattr(term_fd, TCSANOW, &orig_state);
+		close(term_fd);
+		term_fd = -1;
+	}
+}
+
+void fbev_update(void)
+{
+	char buf[64];
+	int i, sz;
+	assert(term_fd >= 0);
+
+	while((sz = read(term_fd, buf, 64)) > 0) {
+		if(keyb_func) {
+			for(i=0; i<sz; i++) {
+				keyb_func(buf[i], 1, keyb_cls);
+			}
+		}
+	}
+}
+
+void fbev_keyboard(void (*func)(int, int, void*), void *cls)
+{
+	keyb_func = func;
+	keyb_cls = cls;
+}
+
+void fbev_mbutton(void (*func)(int, int, int, int, void*), void *cls)
+{
+	mbutton_func = func;
+	mbutton_cls = cls;
+}
+
+void fbev_mmotion(void (*func)(int, int, void*), void *cls)
+{
+	mmotion_func = func;
+	mmotion_cls = cls;
+}