virgl: expose function to set output callback

Since this adds a new function to the library interface this also needs
a bump in the library version number.

Closes: #80

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: David Riley <davidriley@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

src/Makefile.am

@@ -51,7 +51,7 @@ endif
 lib_LTLIBRARIES = libvirglrenderer.la
 noinst_LTLIBRARIES = libvrend.la
 
-GM_LDFLAGS = -Wl,-Bsymbolic -version-number 0:2 -no-undefined
+GM_LDFLAGS = -Wl,-Bsymbolic -version-number 0:3 -no-undefined
 
 libvirglrenderer_la_SOURCES = virglrenderer.c
 libvirglrenderer_ladir = $(libdir)

src/virglrenderer.c

@@ -391,3 +391,8 @@ int virgl_renderer_get_poll_fd(void)
 {
    return vrend_renderer_get_poll_fd();
 }
+
+virgl_debug_callback_type virgl_set_debug_callback(virgl_debug_callback_type cb)
+{
+   return vrend_set_debug_callback(cb);
+}

src/virglrenderer.h

@@ -27,8 +27,11 @@
 #ifndef VIRGLRENDERER_H
 #define VIRGLRENDERER_H
 
+#include "vrend_debug.h"
+
 #include <stdint.h>
 #include <stdbool.h>
+#include <stdarg.h>
 
 struct virgl_box;
 struct iovec;
@@ -159,6 +162,8 @@ VIRGL_EXPORT void virgl_renderer_force_ctx_0(void);
 VIRGL_EXPORT void virgl_renderer_ctx_attach_resource(int ctx_id, int res_handle);
 VIRGL_EXPORT void virgl_renderer_ctx_detach_resource(int ctx_id, int res_handle);
 
+VIRGL_EXPORT virgl_debug_callback_type virgl_set_debug_callback(virgl_debug_callback_type cb);
+
 /* return information about a resource */
 
 struct virgl_renderer_resource_info {