nanogui: GrCopyArea bug

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Subject: GrCopyArea bug
From: Kyle Harris ####@####.####
Date: 8 Mar 2000 15:13:59 -0000
Message-Id: <38C66B5F.E13F4BAE@nexus-tech.net>

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Greg,

There's a minor bug in GrCopyArea where *dp is not initialized when
copying from the same drawing area. Below is the patch I applied to fix
it.

--- srvfunc.c.orig	Wed Mar  8 06:15:13 2000
+++ srvfunc.c	Wed Mar  8 06:18:24 2000
@@ -1295,11 +1295,13 @@
 	GR_DRAWABLE	*dp;
         GR_WINDOW	*swp;
         GR_PIXMAP	*spp;
+        GR_DRAW_TYPE type;
         PSD 		srcpsd;
    
         srcpsd = 0;
 
         swp = GsFindWindow(source);
+        type = GsPrepareDrawing(id, gc, &dp);
         if (swp) {
 	       srcpsd = dp->psd;
 	       srcx += swp->x;
@@ -1312,7 +1314,7 @@
         if (!srcpsd)
 		return;
    
-	switch (GsPrepareDrawing(id, gc, &dp)) {
+	switch (type) {
 		case GR_DRAW_TYPE_WINDOW:
 	        case GR_DRAW_TYPE_PIXMAP:
 			GdBlit(dp->psd, dp->x + x, dp->y + y, width, height,

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