mapi: add new _glapi_new_nop_table() and _glapi_set_nop_handler()

_glapi_new_nop_table() creates a new dispatch table populated with
pointers to no-op functions.

_glapi_set_nop_handler() is used to register a callback function which
will be called from each of the no-op functions.

Now we always generate a separate no-op function for each GL entrypoint.
This allows us to do proper stack clean-up for Windows __stdcall and
lets us report the actual function name in error messages.  Before this
change, for non-Windows release builds we used a single no-op function
for all entrypoints.

Reviewed-by: Jose Fonseca <[email protected]>

1 files changed, 18 insertions, 5 deletions

diff --git a/src/mapi/table.c b/src/mapi/table.c
index 0d28666181b..748750197c6 100644
--- a/src/mapi/table.c
+++ b/src/mapi/table.c
@@ -30,16 +30,29 @@
 
 #include "table.h"
 
+static nop_handler_proc nop_handler = NULL;
+
+void
+table_set_noop_handler(nop_handler_proc func)
+{
+   nop_handler = func;
+}
+
 static void
 noop_warn(const char *name)
 {
-   static int debug = -1;
+   if (nop_handler) {
+      nop_handler(name);
+   }
+   else {
+      static int debug = -1;
    
-   if (debug < 0)
-      debug = (getenv("MESA_DEBUG") || getenv("LIBGL_DEBUG"));
+      if (debug < 0)
+         debug = (getenv("MESA_DEBUG") || getenv("LIBGL_DEBUG"));
 
-   if (debug)
-      fprintf(stderr, "%s is no-op\n", name);
+      if (debug)
+         fprintf(stderr, "%s is no-op\n", name);
+   }
 }
 
 static int