moving software to separate submodules part 1

desktop/.st/patch/sixel_st.c

@@ -0,0 +1,42 @@
+sixel_state_t sixel_st;
+
+void
+dcshandle(void)
+{
+	switch (csiescseq.mode[0]) {
+	default:
+		fprintf(stderr, "erresc: unknown csi ");
+		csidump();
+		/* die(""); */
+		break;
+	case 'q': /* DECSIXEL */
+		if (sixel_parser_init(&sixel_st, 0, 0 << 16 | 0 << 8 | 0, 1, win.cw, win.ch) != 0)
+			perror("sixel_parser_init() failed");
+		term.mode |= MODE_SIXEL;
+		break;
+	}
+}
+
+void
+scroll_images(int n) {
+	ImageList *im;
+	int tmp;
+
+	/* maximum sixel distance in lines from current view before
+	 * deallocation
+	 * TODO: should be in config.h */
+	int max_sixel_distance = 10000;
+
+	for (im = term.images; im; im = im->next) {
+		im->y += n;
+
+		/* check if the current sixel has exceeded the maximum
+		 * draw distance, and should therefore be deleted */
+		tmp = im->y;
+		if (tmp < 0) { tmp = tmp * -1; }
+		if (tmp > max_sixel_distance) {
+			fprintf(stderr, "im@0x%08x exceeded maximum distance\n");
+			im->should_delete = 1;
+		}
+	}
+}