X-Git-Url: https://git.danieliu.xyz/?p=st.git;a=blobdiff_plain;f=st.c;h=504239ea6ac121ec512a4e738e72b916a828015e;hp=01791a57d25e05261d31878e566355260b3263a8;hb=88d8293fb4ba150a5f19d58d133b5db93d9dcfa5;hpb=05c66cb37d9ff278a3e0c45682c4b5e7945deb42

diff --git a/st.c b/st.c
index 01791a5..504239e 100644
--- a/st.c
+++ b/st.c
@@ -166,6 +166,8 @@ static int32_t tdefcolor(int *, int *, int);
 static void tdeftran(char);
 static void tstrsequence(uchar);
 
+static void drawregion(int, int, int, int);
+
 static void selscroll(int, int);
 static void selsnap(int *, int *, int);
 
@@ -2526,6 +2528,29 @@ resettitle(void)
 	xsettitle(NULL);
 }
 
+void
+drawregion(int x1, int y1, int x2, int y2)
+{
+	int y;
+	for (y = y1; y < y2; y++) {
+		if (!term.dirty[y])
+			continue;
+
+		term.dirty[y] = 0;
+		xdrawline(term.line[y], x1, y, x2);
+	}
+}
+
+void
+draw(void)
+{
+	if (!xstartdraw())
+		return;
+	drawregion(0, 0, term.col, term.row);
+	xdrawcursor();
+	xfinishdraw();
+}
+
 void
 redraw(void)
 {