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, 11 insertions, 0 deletions

diff --git a/src/mapi/glapi/glapi.h b/src/mapi/glapi/glapi.h
index 8d991fb3b8a..673295bca46 100644
--- a/src/mapi/glapi/glapi.h
+++ b/src/mapi/glapi/glapi.h
@@ -80,6 +80,9 @@ extern "C" {
 #endif
 
 typedef void (*_glapi_proc)(void);
+
+typedef void (*_glapi_nop_handler_proc)(const char *name);
+
 struct _glapi_table;
 
 
@@ -159,6 +162,14 @@ _GLAPI_EXPORT struct _glapi_table *
 _glapi_create_table_from_handle(void *handle, const char *symbol_prefix);
 
 
+_GLAPI_EXPORT void
+_glapi_set_nop_handler(_glapi_nop_handler_proc func);
+
+/** Return pointer to new dispatch table filled with no-op functions */
+_GLAPI_EXPORT struct _glapi_table *
+_glapi_new_nop_table(unsigned num_entries);
+
+
 /** Deprecated function */
 _GLAPI_EXPORT unsigned long
 _glthread_GetID(void);