[PATCH 1/4] wrlib: Implemented functions to allow clean-up of Contexts

[Christophe]

From: David Maciejak <david.macie...@gmail.com>

The function 'RDestroyContext' have been defined in the API for a long time
but did not have an implementation, this patch fixes it.
---
 wrlib/context.c      | 15 +++++++++++++++
 wrlib/libwraster.map |  1 +
 2 files changed, 16 insertions(+)

diff --git a/wrlib/context.c b/wrlib/context.c
index b6794d0..7479009 100644
--- a/wrlib/context.c
+++ b/wrlib/context.c
@@ -688,6 +688,21 @@ RContext *RCreateContext(Display * dpy, int screen_number, 
const RContextAttribu
        return context;
 }
 
+void RDestroyContext(RContext *context)
+{
+       if (context) {
+               if (context->copy_gc)
+                       XFreeGC(context->dpy, context->copy_gc);
+               if (context->attribs) {
+                       if ((context->attribs->flags & RC_VisualID) &&
+                           !(context->attribs->flags & RC_DefaultVisual))
+                               XDestroyWindow(context->dpy, context->drawable);
+                       free(context->attribs);
+               }
+               free(context);
+       }
+}
+
 static Bool bestContext(Display * dpy, int screen_number, RContext * context)
 {
        XVisualInfo *vinfo = NULL, rvinfo;
diff --git a/wrlib/libwraster.map b/wrlib/libwraster.map
index 6e165ef..422af75 100644
--- a/wrlib/libwraster.map
+++ b/wrlib/libwraster.map
@@ -33,6 +33,7 @@ LIBWRASTER3
     RConvertImageMask;
     RCopyArea;
     RCreateContext;
+    RDestroyContext;
     RCreateImage;
     RCreateImageFromDrawable;
     RCreateImageFromXImage;
-- 
1.9.2


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